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mode 100755 new mode 100644 diff --git a/jcnf/Jamfile b/jcnf/Jamfile old mode 100755 new mode 100644 diff --git a/jcnf/Readme.txt b/jcnf/Readme.txt old mode 100755 new mode 100644 diff --git a/jcnf/afiles b/jcnf/afiles old mode 100755 new mode 100644 diff --git a/jcnf/jcnf.c b/jcnf/jcnf.c old mode 100755 new mode 100644 diff --git a/jcnf/jcnf.h b/jcnf/jcnf.h old mode 100755 new mode 100644 diff --git a/jcnf/test.c b/jcnf/test.c old mode 100755 new mode 100644 diff --git a/jcnf/test.jcnf b/jcnf/test.jcnf old mode 100755 new mode 100644 diff --git a/jpeg/Jamfile b/jpeg/Jamfile deleted file mode 100755 index 5f9a91c..0000000 --- a/jpeg/Jamfile +++ /dev/null @@ -1,26 +0,0 @@ - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -# Run configure if it seems to be needed -if $(UNIX) { - GenFileNND jconfig.h : "(cd $(SUBDIR); chmod +x configure ; ./configure)" : configure ; -} - -# else copy them -if $(NT) { - File jconfig.h : jconfig.vc ; -} - -# jpg library -LIBSRCS = jcapimin.c jcapistd.c jdapimin.c jdapistd.c jcomapi.c jcparam.c jctrans.c - jdtrans.c jcinit.c jcmaster.c jcmainct.c jcprepct.c jccoefct.c jccolor.c - jcsample.c jcdctmgr.c jfdctint.c jfdctfst.c jfdctflt.c jchuff.c jcarith.c - jcmarker.c jdatadst.c jdmaster.c jdinput.c jdmainct.c jdcoefct.c jdpostct.c - jdmarker.c jdhuff.c jdarith.c jddctmgr.c jidctint.c jidctfst.c jidctflt.c - jdsample.c jdcolor.c jdmerge.c jquant1.c jquant2.c jdatasrc.c jaricom.c - jerror.c jmemmgr.c jutils.c jmemmgr.c jmemnobs.c ; - -Library libjpeg : $(LIBSRCS) ; - diff --git a/jpeg/Makefile.am b/jpeg/Makefile.am deleted file mode 100755 index 42cff57..0000000 --- a/jpeg/Makefile.am +++ /dev/null @@ -1,134 +0,0 @@ -## Process this file with automake to produce Makefile.in -# -# Automake Makefile for the JPEG library -# -# This file is written by Bob Friesenhahn, Guido Vollbeding -# - -# Sources to build library -LIBSOURCES = jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c @MEMORYMGR@.c - -# System dependent sources -SYSDEPSOURCES = jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c - -# Headers which are installed to support the library -INSTINCLUDES = jerror.h jmorecfg.h jpeglib.h - -# Headers which are not installed -OTHERINCLUDES = cderror.h cdjpeg.h jdct.h jinclude.h jmemsys.h jpegint.h \ - jversion.h transupp.h - -# Manual pages (Automake uses 'MANS' for itself) -DISTMANS= cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 wrjpgcom.1 - -# Other documentation files -DOCS= README install.txt usage.txt wizard.txt example.c libjpeg.txt \ - structure.txt coderules.txt filelist.txt change.log - -# Makefiles for various systems -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt - -# Configuration files -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms - -# Support scripts for configure -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing - -# Miscellaneous support files -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map - -# Test support files -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg - -# libtool libraries to build -lib_LTLIBRARIES = libjpeg.la - -# Library sources for libjpeg.la -libjpeg_la_SOURCES = $(LIBSOURCES) - -# LDFLAGS for libjpeg.la -libjpeg_la_LDFLAGS = -no-undefined \ - -version-info $(JPEG_LIB_VERSION) - -if HAVE_LD_VERSION_SCRIPT - libjpeg_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libjpeg.map -endif - -# Executables to build -bin_PROGRAMS = cjpeg djpeg jpegtran rdjpgcom wrjpgcom - -# Executable sources & libs -cjpeg_SOURCES = cjpeg.c rdppm.c rdgif.c rdtarga.c rdrle.c rdbmp.c \ - rdswitch.c cdjpeg.c -cjpeg_LDADD = libjpeg.la -djpeg_SOURCES = djpeg.c wrppm.c wrgif.c wrtarga.c wrrle.c wrbmp.c \ - rdcolmap.c cdjpeg.c -djpeg_LDADD = libjpeg.la -jpegtran_SOURCES = jpegtran.c rdswitch.c cdjpeg.c transupp.c -jpegtran_LDADD = libjpeg.la -rdjpgcom_SOURCES = rdjpgcom.c -wrjpgcom_SOURCES = wrjpgcom.c - -# Manual pages to install -man_MANS = $(DISTMANS) - -# Headers to install -include_HEADERS = $(INSTINCLUDES) - -# Other distributed headers -noinst_HEADERS = $(OTHERINCLUDES) - -# Other distributed files -EXTRA_DIST = $(DOCS) $(DISTMANS) $(MKFILES) $(CONFIGFILES) $(SYSDEPSOURCES) \ - $(OTHERFILES) $(TESTFILES) - -# Files to be cleaned -CLEANFILES = testout.ppm testout.bmp testout.jpg testoutp.ppm testoutp.jpg \ - testoutt.jpg - -# Install jconfig.h -install-data-local: - $(mkinstalldirs) $(DESTDIR)$(includedir) - $(INSTALL_HEADER) jconfig.h $(DESTDIR)$(includedir)/jconfig.h - -# Uninstall jconfig.h -uninstall-local: - rm -f $(DESTDIR)$(includedir)/jconfig.h - -# Run tests -test: check-local -check-local: - rm -f testout* - ./djpeg -dct int -ppm -outfile 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$(srcdir)/testprog.jpg - cmp $(srcdir)/testimg.ppm testout.ppm - cmp $(srcdir)/testimg.bmp testout.bmp - cmp $(srcdir)/testimg.jpg testout.jpg - cmp $(srcdir)/testimg.ppm testoutp.ppm - cmp $(srcdir)/testimgp.jpg testoutp.jpg - cmp $(srcdir)/testorig.jpg testoutt.jpg - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/jpeg/README b/jpeg/README deleted file mode 100755 index 0a23c19..0000000 --- a/jpeg/README +++ /dev/null @@ -1,351 +0,0 @@ -The Independent JPEG Group's JPEG software -========================================== - -README for release 8d of 15-Jan-2012 -==================================== - -This distribution contains the eighth public release of the Independent JPEG -Group's free JPEG software. You are welcome to redistribute this software and -to use it for any purpose, subject to the conditions under LEGAL ISSUES, below. - -This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, -Bill Allombert, Jim Boucher, Lee Crocker, Bob Friesenhahn, Ben Jackson, -Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi, Ge' Weijers, -and other members of the Independent JPEG Group. - -IJG is not affiliated with the ISO/IEC JTC1/SC29/WG1 standards committee -(also known as JPEG, together with ITU-T SG16). - - -DOCUMENTATION ROADMAP -===================== - -This file contains the following sections: - -OVERVIEW General description of JPEG and the IJG software. -LEGAL ISSUES Copyright, lack of warranty, terms of distribution. -REFERENCES Where to learn more about JPEG. -ARCHIVE LOCATIONS Where to find newer versions of this software. -ACKNOWLEDGMENTS Special thanks. -FILE FORMAT WARS Software *not* to get. -TO DO Plans for future IJG releases. - -Other documentation files in the distribution are: - -User documentation: - install.txt How to configure and install the IJG software. - usage.txt Usage instructions for cjpeg, djpeg, jpegtran, - rdjpgcom, and wrjpgcom. - *.1 Unix-style man pages for programs (same info as usage.txt). - wizard.txt Advanced usage instructions for JPEG wizards only. - change.log Version-to-version change highlights. -Programmer and internal documentation: - libjpeg.txt How to use the JPEG library in your own programs. - example.c Sample code for calling the JPEG library. - structure.txt Overview of the JPEG library's internal structure. - filelist.txt Road map of IJG files. - coderules.txt Coding style rules --- please read if you contribute code. - -Please read at least the files install.txt and usage.txt. Some information -can also be found in the JPEG FAQ (Frequently Asked Questions) article. See -ARCHIVE LOCATIONS below to find out where to obtain the FAQ article. - -If you want to understand how the JPEG code works, we suggest reading one or -more of the REFERENCES, then looking at the documentation files (in roughly -the order listed) before diving into the code. - - -OVERVIEW -======== - -This package contains C software to implement JPEG image encoding, decoding, -and transcoding. JPEG (pronounced "jay-peg") is a standardized compression -method for full-color and gray-scale images. - -This software implements JPEG baseline, extended-sequential, and progressive -compression processes. Provision is made for supporting all variants of these -processes, although some uncommon parameter settings aren't implemented yet. -We have made no provision for supporting the hierarchical or lossless -processes defined in the standard. - -We provide a set of library routines for reading and writing JPEG image files, -plus two sample applications "cjpeg" and "djpeg", which use the library to -perform conversion between JPEG and some other popular image file formats. -The library is intended to be reused in other applications. - -In order to support file conversion and viewing software, we have included -considerable functionality beyond the bare JPEG coding/decoding capability; -for example, the color quantization modules are not strictly part of JPEG -decoding, but they are essential for output to colormapped file formats or -colormapped displays. These extra functions can be compiled out of the -library if not required for a particular application. - -We have also included "jpegtran", a utility for lossless transcoding between -different JPEG processes, and "rdjpgcom" and "wrjpgcom", two simple -applications for inserting and extracting textual comments in JFIF files. - -The emphasis in designing this software has been on achieving portability and -flexibility, while also making it fast enough to be useful. In particular, -the software is not intended to be read as a tutorial on JPEG. (See the -REFERENCES section for introductory material.) Rather, it is intended to -be reliable, portable, industrial-strength code. We do not claim to have -achieved that goal in every aspect of the software, but we strive for it. - -We welcome the use of this software as a component of commercial products. -No royalty is required, but we do ask for an acknowledgement in product -documentation, as described under LEGAL ISSUES. - - -LEGAL ISSUES -============ - -In plain English: - -1. We don't promise that this software works. (But if you find any bugs, - please let us know!) -2. You can use this software for whatever you want. You don't have to pay us. -3. You may not pretend that you wrote this software. If you use it in a - program, you must acknowledge somewhere in your documentation that - you've used the IJG code. - -In legalese: - -The authors make NO WARRANTY or representation, either express or implied, -with respect to this software, its quality, accuracy, merchantability, or -fitness for a particular purpose. This software is provided "AS IS", and you, -its user, assume the entire risk as to its quality and accuracy. - -This software is copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. -All Rights Reserved except as specified below. - -Permission is hereby granted to use, copy, modify, and distribute this -software (or portions thereof) for any purpose, without fee, subject to these -conditions: -(1) If any part of the source code for this software is distributed, then this -README file must be included, with this copyright and no-warranty notice -unaltered; and any additions, deletions, or changes to the original files -must be clearly indicated in accompanying documentation. -(2) If only executable code is distributed, then the accompanying -documentation must state that "this software is based in part on the work of -the Independent JPEG Group". -(3) Permission for use of this software is granted only if the user accepts -full responsibility for any undesirable consequences; the authors accept -NO LIABILITY for damages of any kind. - -These conditions apply to any software derived from or based on the IJG code, -not just to the unmodified library. If you use our work, you ought to -acknowledge us. - -Permission is NOT granted for the use of any IJG author's name or company name -in advertising or publicity relating to this software or products derived from -it. This software may be referred to only as "the Independent JPEG Group's -software". - -We specifically permit and encourage the use of this software as the basis of -commercial products, provided that all warranty or liability claims are -assumed by the product vendor. - - -ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, -sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA. -ansi2knr.c is NOT covered by the above copyright and conditions, but instead -by the usual distribution terms of the Free Software Foundation; principally, -that you must include source code if you redistribute it. (See the file -ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part -of any program generated from the IJG code, this does not limit you more than -the foregoing paragraphs do. - -The Unix configuration script "configure" was produced with GNU Autoconf. -It is copyright by the Free Software Foundation but is freely distributable. -The same holds for its supporting scripts (config.guess, config.sub, -ltmain.sh). Another support script, install-sh, is copyright by X Consortium -but is also freely distributable. - -The IJG distribution formerly included code to read and write GIF files. -To avoid entanglement with the Unisys LZW patent, GIF reading support has -been removed altogether, and the GIF writer has been simplified to produce -"uncompressed GIFs". This technique does not use the LZW algorithm; the -resulting GIF files are larger than usual, but are readable by all standard -GIF decoders. - -We are required to state that - "The Graphics Interchange Format(c) is the Copyright property of - CompuServe Incorporated. GIF(sm) is a Service Mark property of - CompuServe Incorporated." - - -REFERENCES -========== - -We recommend reading one or more of these references before trying to -understand the innards of the JPEG software. - -The best short technical introduction to the JPEG compression algorithm is - Wallace, Gregory K. "The JPEG Still Picture Compression Standard", - Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44. -(Adjacent articles in that issue discuss MPEG motion picture compression, -applications of JPEG, and related topics.) If you don't have the CACM issue -handy, a PostScript file containing a revised version of Wallace's article is -available at http://www.ijg.org/files/wallace.ps.gz. The file (actually -a preprint for an article that appeared in IEEE Trans. Consumer Electronics) -omits the sample images that appeared in CACM, but it includes corrections -and some added material. Note: the Wallace article is copyright ACM and IEEE, -and it may not be used for commercial purposes. - -A somewhat less technical, more leisurely introduction to JPEG can be found in -"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by -M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1. This book provides -good explanations and example C code for a multitude of compression methods -including JPEG. It is an excellent source if you are comfortable reading C -code but don't know much about data compression in general. The book's JPEG -sample code is far from industrial-strength, but when you are ready to look -at a full implementation, you've got one here... - -The best currently available description of JPEG is the textbook "JPEG Still -Image Data Compression Standard" by William B. Pennebaker and Joan L. -Mitchell, published by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1. -Price US$59.95, 638 pp. The book includes the complete text of the ISO JPEG -standards (DIS 10918-1 and draft DIS 10918-2). -Although this is by far the most detailed and comprehensive exposition of -JPEG publicly available, we point out that it is still missing an explanation -of the most essential properties and algorithms of the underlying DCT -technology. -If you think that you know about DCT-based JPEG after reading this book, -then you are in delusion. The real fundamentals and corresponding potential -of DCT-based JPEG are not publicly known so far, and that is the reason for -all the mistaken developments taking place in the image coding domain. - -The original JPEG standard is divided into two parts, Part 1 being the actual -specification, while Part 2 covers compliance testing methods. Part 1 is -titled "Digital Compression and Coding of Continuous-tone Still Images, -Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS -10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of -Continuous-tone Still Images, Part 2: Compliance testing" and has document -numbers ISO/IEC IS 10918-2, ITU-T T.83. -IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension -which is specified in two documents: A contributed document at ITU and ISO -with title "ITU-T JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced -Image Coding", April 2006, Geneva, Switzerland. The latest version of this -document is Revision 3. And a contributed document ISO/IEC JTC1/SC29/WG1 N -5799 with title "Evolution of JPEG", June/July 2011, Berlin, Germany. - -The JPEG standard does not specify all details of an interchangeable file -format. For the omitted details we follow the "JFIF" conventions, revision -1.02. JFIF 1.02 has been adopted as an Ecma International Technical Report -and thus received a formal publication status. It is available as a free -download in PDF format from -http://www.ecma-international.org/publications/techreports/E-TR-098.htm. -A PostScript version of the JFIF document is available at -http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at -http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures. - -The TIFF 6.0 file format specification can be obtained by FTP from -ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz. The JPEG incorporation scheme -found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems. -IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6). -Instead, we recommend the JPEG design proposed by TIFF Technical Note #2 -(Compression tag 7). Copies of this Note can be obtained from -http://www.ijg.org/files/. It is expected that the next revision -of the TIFF spec will replace the 6.0 JPEG design with the Note's design. -Although IJG's own code does not support TIFF/JPEG, the free libtiff library -uses our library to implement TIFF/JPEG per the Note. - - -ARCHIVE LOCATIONS -================= - -The "official" archive site for this software is www.ijg.org. -The most recent released version can always be found there in -directory "files". This particular version will be archived as -http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible -"zip" archive format as http://www.ijg.org/files/jpegsr8d.zip. - -The JPEG FAQ (Frequently Asked Questions) article is a source of some -general information about JPEG. -It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ -and other news.answers archive sites, including the official news.answers -archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. -If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu -with body - send usenet/news.answers/jpeg-faq/part1 - send usenet/news.answers/jpeg-faq/part2 - - -ACKNOWLEDGMENTS -=============== - -Thank to Juergen Bruder for providing me with a copy of the common DCT -algorithm article, only to find out that I had come to the same result -in a more direct and comprehensible way with a more generative approach. - -Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the -ITU JPEG (Study Group 16) meeting in Geneva, Switzerland. - -Thank to Thomas Wiegand and Gary Sullivan for inviting me to the -Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland. - -Thank to Thomas Richter and Daniel Lee for inviting me to the -ISO/IEC JTC1/SC29/WG1 (also known as JPEG, together with ITU-T SG16) -meeting in Berlin, Germany. - -Thank to John Korejwa and Massimo Ballerini for inviting me to -fruitful consultations in Boston, MA and Milan, Italy. - -Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther -Maier-Gerber, Walter Stoeber, Fred Schmitz, and Norbert Braunagel -for corresponding business development. - -Thank to Nico Zschach and Dirk Stelling of the technical support team -at the Digital Images company in Halle for providing me with extra -equipment for configuration tests. - -Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful -communication about JPEG configuration in Sigma Photo Pro software. - -Thank to Andrew Finkenstadt for hosting the ijg.org site. - -Last but not least special thank to Thomas G. Lane for the original -design and development of this singular software package. - - -FILE FORMAT WARS -================ - -The ISO/IEC JTC1/SC29/WG1 standards committee (also known as JPEG, together -with ITU-T SG16) currently promotes different formats containing the name -"JPEG" which is misleading because these formats are incompatible with -original DCT-based JPEG and are based on faulty technologies. -IJG therefore does not and will not support such momentary mistakes -(see REFERENCES). -There exist also distributions under the name "OpenJPEG" promoting such -kind of formats which is misleading because they don't support original -JPEG images. -We have no sympathy for the promotion of inferior formats. Indeed, one of -the original reasons for developing this free software was to help force -convergence on common, interoperable format standards for JPEG files. -Don't use an incompatible file format! -(In any case, our decoder will remain capable of reading existing JPEG -image files indefinitely.) - -Furthermore, the ISO committee pretends to be "responsible for the popular -JPEG" in their public reports which is not true because they don't respond to -actual requirements for the maintenance of the original JPEG specification. - -There are currently distributions in circulation containing the name -"libjpeg" which claim to be a "derivative" or "fork" of the original -libjpeg, but don't have the features and are incompatible with formats -supported by actual IJG libjpeg distributions. Furthermore, they -violate the license conditions as described under LEGAL ISSUES above. -We have no sympathy for the release of misleading and illegal -distributions derived from obsolete code bases. -Don't use an obsolete code base! - - -TO DO -===== - -Version 8 is the first release of a new generation JPEG standard -to overcome the limitations of the original JPEG specification. -More features are being prepared for coming releases... - -Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org. diff --git a/jpeg/aclocal.m4 b/jpeg/aclocal.m4 deleted file mode 100755 index 9b38b97..0000000 --- a/jpeg/aclocal.m4 +++ /dev/null @@ -1,9652 +0,0 @@ -# generated automatically by aclocal 1.11.2 -*- Autoconf -*- - -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, -# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, -# Inc. -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -m4_ifndef([AC_AUTOCONF_VERSION], - [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl -m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68],, -[m4_warning([this file was generated for autoconf 2.68. -You have another version of autoconf. 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then - _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" - fi - ;; - esac - else - # PORTME Check for flag to pass linker flags through the system compiler. - case $host_os in - aix*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - if test "$host_cpu" = ia64; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - else - _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' - fi - ;; - - mingw* | cygwin* | pw32* | os2* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - ;; - - hpux9* | hpux10* | hpux11*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but - # not for PA HP-UX. - case $host_cpu in - hppa*64*|ia64*) - # +Z the default - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' - ;; 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It will recognize a -multi-line header provided that no intervening line ends with a left or right -brace or a semicolon. These algorithms ignore whitespace and comments, except -that the function name must be the first thing on the line. -.sp -The following constructs will confuse it: -.br - - Any other construct that starts at the left margin and follows the -above syntax (such as a macro or function call). -.br - - Some macros that tinker with the syntax of the function header. -.sp -The --varargs switch is obsolete, and is recognized only for -backwards compatibility. The present version of -.I ansi2knr -will always attempt to convert a ... argument to va_alist and va_dcl. -.SH AUTHOR -L. Peter Deutsch wrote the original ansi2knr and -continues to maintain the current version; most of the code in the current -version is his work. ansi2knr also includes contributions by Francois -Pinard and Jim Avera . diff --git a/jpeg/ansi2knr.c b/jpeg/ansi2knr.c deleted file mode 100755 index e84c210..0000000 --- a/jpeg/ansi2knr.c +++ /dev/null @@ -1,739 +0,0 @@ -/* Copyright (C) 1989, 2000 Aladdin Enterprises. All rights reserved. */ - -/*$Id: ansi2knr.c,v 1.14 2003/09/06 05:36:56 eggert Exp $*/ -/* Convert ANSI C function definitions to K&R ("traditional C") syntax */ - -/* -ansi2knr is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY. No author or distributor accepts responsibility to anyone for the -consequences of using it or for whether it serves any particular purpose or -works at all, unless he says so in writing. Refer to the GNU General Public -License (the "GPL") for full details. - -Everyone is granted permission to copy, modify and redistribute ansi2knr, -but only under the conditions described in the GPL. A copy of this license -is supposed to have been given to you along with ansi2knr so you can know -your rights and responsibilities. It should be in a file named COPYLEFT, -or, if there is no file named COPYLEFT, a file named COPYING. Among other -things, the copyright notice and this notice must be preserved on all -copies. - -We explicitly state here what we believe is already implied by the GPL: if -the ansi2knr program is distributed as a separate set of sources and a -separate executable file which are aggregated on a storage medium together -with another program, this in itself does not bring the other program under -the GPL, nor does the mere fact that such a program or the procedures for -constructing it invoke the ansi2knr executable bring any other part of the -program under the GPL. -*/ - -/* - * Usage: - ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]] - * --filename provides the file name for the #line directive in the output, - * overriding input_file (if present). - * If no input_file is supplied, input is read from stdin. - * If no output_file is supplied, output goes to stdout. - * There are no error messages. - * - * ansi2knr recognizes function definitions by seeing a non-keyword - * identifier at the left margin, followed by a left parenthesis, with a - * right parenthesis as the last character on the line, and with a left - * brace as the first token on the following line (ignoring possible - * intervening comments and/or preprocessor directives), except that a line - * consisting of only - * identifier1(identifier2) - * will not be considered a function definition unless identifier2 is - * the word "void", and a line consisting of - * identifier1(identifier2, <>) - * will not be considered a function definition. - * ansi2knr will recognize a multi-line header provided that no intervening - * line ends with a left or right brace or a semicolon. These algorithms - * ignore whitespace, comments, and preprocessor directives, except that - * the function name must be the first thing on the line. The following - * constructs will confuse it: - * - Any other construct that starts at the left margin and - * follows the above syntax (such as a macro or function call). - * - Some macros that tinker with the syntax of function headers. - */ - -/* - * The original and principal author of ansi2knr is L. Peter Deutsch - * . Other authors are noted in the change history - * that follows (in reverse chronological order): - - lpd 2000-04-12 backs out Eggert's changes because of bugs: - - concatlits didn't declare the type of its bufend argument; - - concatlits didn't recognize when it was inside a comment; - - scanstring could scan backward past the beginning of the string; when - - the check for \ + newline in scanstring was unnecessary. - - 2000-03-05 Paul Eggert - - Add support for concatenated string literals. - * ansi2knr.c (concatlits): New decl. - (main): Invoke concatlits to concatenate string literals. - (scanstring): Handle backslash-newline correctly. Work with - character constants. Fix bug when scanning backwards through - backslash-quote. Check for unterminated strings. - (convert1): Parse character constants, too. - (appendline, concatlits): New functions. - * ansi2knr.1: Document this. - - lpd 1999-08-17 added code to allow preprocessor directives - wherever comments are allowed - lpd 1999-04-12 added minor fixes from Pavel Roskin - for clean compilation with - gcc -W -Wall - lpd 1999-03-22 added hack to recognize lines consisting of - identifier1(identifier2, xxx) as *not* being procedures - lpd 1999-02-03 made indentation of preprocessor commands consistent - lpd 1999-01-28 fixed two bugs: a '/' in an argument list caused an - endless loop; quoted strings within an argument list - confused the parser - lpd 1999-01-24 added a check for write errors on the output, - suggested by Jim Meyering - lpd 1998-11-09 added further hack to recognize identifier(void) - as being a procedure - lpd 1998-10-23 added hack to recognize lines consisting of - identifier1(identifier2) as *not* being procedures - lpd 1997-12-08 made input_file optional; only closes input and/or - output file if not stdin or stdout respectively; prints - usage message on stderr rather than stdout; adds - --filename switch (changes suggested by - ) - lpd 1996-01-21 added code to cope with not HAVE_CONFIG_H and with - compilers that don't understand void, as suggested by - Tom Lane - lpd 1996-01-15 changed to require that the first non-comment token - on the line following a function header be a left brace, - to reduce sensitivity to macros, as suggested by Tom Lane - - lpd 1995-06-22 removed #ifndefs whose sole purpose was to define - undefined preprocessor symbols as 0; changed all #ifdefs - for configuration symbols to #ifs - lpd 1995-04-05 changed copyright notice to make it clear that - including ansi2knr in a program does not bring the entire - program under the GPL - lpd 1994-12-18 added conditionals for systems where ctype macros - don't handle 8-bit characters properly, suggested by - Francois Pinard ; - removed --varargs switch (this is now the default) - lpd 1994-10-10 removed CONFIG_BROKETS conditional - lpd 1994-07-16 added some conditionals to help GNU `configure', - suggested by Francois Pinard ; - properly erase prototype args in function parameters, - contributed by Jim Avera ; - correct error in writeblanks (it shouldn't erase EOLs) - lpd 1989-xx-xx original version - */ - -/* Most of the conditionals here are to make ansi2knr work with */ -/* or without the GNU configure machinery. */ - -#if HAVE_CONFIG_H -# include -#endif - -#include -#include - -#if HAVE_CONFIG_H - -/* - For properly autoconfiguring ansi2knr, use AC_CONFIG_HEADER(config.h). - This will define HAVE_CONFIG_H and so, activate the following lines. - */ - -# if STDC_HEADERS || HAVE_STRING_H -# include -# else -# include -# endif - -#else /* not HAVE_CONFIG_H */ - -/* Otherwise do it the hard way */ - -# ifdef BSD -# include -# else -# ifdef VMS - extern int strlen(), strncmp(); -# else -# include -# endif -# endif - -#endif /* not HAVE_CONFIG_H */ - -#if STDC_HEADERS -# include -#else -/* - malloc and free should be declared in stdlib.h, - but if you've got a K&R compiler, they probably aren't. - */ -# ifdef MSDOS -# include -# else -# ifdef VMS - extern char *malloc(); - extern void free(); -# else - extern char *malloc(); - extern int free(); -# endif -# endif - -#endif - -/* Define NULL (for *very* old compilers). */ -#ifndef NULL -# define NULL (0) -#endif - -/* - * The ctype macros don't always handle 8-bit characters correctly. - * Compensate for this here. - */ -#ifdef isascii -# undef HAVE_ISASCII /* just in case */ -# define HAVE_ISASCII 1 -#else -#endif -#if STDC_HEADERS || !HAVE_ISASCII -# define is_ascii(c) 1 -#else -# define is_ascii(c) isascii(c) -#endif - -#define is_space(c) (is_ascii(c) && isspace(c)) -#define is_alpha(c) (is_ascii(c) && isalpha(c)) -#define is_alnum(c) (is_ascii(c) && isalnum(c)) - -/* Scanning macros */ -#define isidchar(ch) (is_alnum(ch) || (ch) == '_') -#define isidfirstchar(ch) (is_alpha(ch) || (ch) == '_') - -/* Forward references */ -char *ppdirforward(); -char *ppdirbackward(); -char *skipspace(); -char *scanstring(); -int writeblanks(); -int test1(); -int convert1(); - -/* The main program */ -int -main(argc, argv) - int argc; - char *argv[]; -{ FILE *in = stdin; - FILE *out = stdout; - char *filename = 0; - char *program_name = argv[0]; - char *output_name = 0; -#define bufsize 5000 /* arbitrary size */ - char *buf; - char *line; - char *more; - char *usage = - "Usage: ansi2knr [--filename FILENAME] [INPUT_FILE [OUTPUT_FILE]]\n"; - /* - * In previous versions, ansi2knr recognized a --varargs switch. - * If this switch was supplied, ansi2knr would attempt to convert - * a ... argument to va_alist and va_dcl; if this switch was not - * supplied, ansi2knr would simply drop any such arguments. - * Now, ansi2knr always does this conversion, and we only - * check for this switch for backward compatibility. - */ - int convert_varargs = 1; - int output_error; - - while ( argc > 1 && argv[1][0] == '-' ) { - if ( !strcmp(argv[1], "--varargs") ) { - convert_varargs = 1; - argc--; - argv++; - continue; - } - if ( !strcmp(argv[1], "--filename") && argc > 2 ) { - filename = argv[2]; - argc -= 2; - argv += 2; - continue; - } - fprintf(stderr, "%s: Unrecognized switch: %s\n", program_name, - argv[1]); - fprintf(stderr, usage); - exit(1); - } - switch ( argc ) - { - default: - fprintf(stderr, usage); - exit(0); - case 3: - output_name = argv[2]; - out = fopen(output_name, "w"); - if ( out == NULL ) { - fprintf(stderr, "%s: Cannot open output file %s\n", - program_name, output_name); - exit(1); - } - /* falls through */ - case 2: - in = fopen(argv[1], "r"); - if ( in == NULL ) { - fprintf(stderr, "%s: Cannot open input file %s\n", - program_name, argv[1]); - exit(1); - } - if ( filename == 0 ) - filename = argv[1]; - /* falls through */ - case 1: - break; - } - if ( filename ) - fprintf(out, "#line 1 \"%s\"\n", filename); - buf = malloc(bufsize); - if ( buf == NULL ) - { - fprintf(stderr, "Unable to allocate read buffer!\n"); - exit(1); - } - line = buf; - while ( fgets(line, (unsigned)(buf + bufsize - line), in) != NULL ) - { -test: line += strlen(line); - switch ( test1(buf) ) - { - case 2: /* a function header */ - convert1(buf, out, 1, convert_varargs); - break; - case 1: /* a function */ - /* Check for a { at the start of the next line. */ - more = ++line; -f: if ( line >= buf + (bufsize - 1) ) /* overflow check */ - goto wl; - if ( fgets(line, (unsigned)(buf + bufsize - line), in) == NULL ) - goto wl; - switch ( *skipspace(ppdirforward(more), 1) ) - { - case '{': - /* Definitely a function header. */ - convert1(buf, out, 0, convert_varargs); - fputs(more, out); - break; - case 0: - /* The next line was blank or a comment: */ - /* keep scanning for a non-comment. */ - line += strlen(line); - goto f; - default: - /* buf isn't a function header, but */ - /* more might be. */ - fputs(buf, out); - strcpy(buf, more); - line = buf; - goto test; - } - break; - case -1: /* maybe the start of a function */ - if ( line != buf + (bufsize - 1) ) /* overflow check */ - continue; - /* falls through */ - default: /* not a function */ -wl: fputs(buf, out); - break; - } - line = buf; - } - if ( line != buf ) - fputs(buf, out); - free(buf); - if ( output_name ) { - output_error = ferror(out); - output_error |= fclose(out); - } else { /* out == stdout */ - fflush(out); - output_error = ferror(out); - } - if ( output_error ) { - fprintf(stderr, "%s: error writing to %s\n", program_name, - (output_name ? output_name : "stdout")); - exit(1); - } - if ( in != stdin ) - fclose(in); - return 0; -} - -/* - * Skip forward or backward over one or more preprocessor directives. - */ -char * -ppdirforward(p) - char *p; -{ - for (; *p == '#'; ++p) { - for (; *p != '\r' && *p != '\n'; ++p) - if (*p == 0) - return p; - if (*p == '\r' && p[1] == '\n') - ++p; - } - return p; -} -char * -ppdirbackward(p, limit) - char *p; - char *limit; -{ - char *np = p; - - for (;; p = --np) { - if (*np == '\n' && np[-1] == '\r') - --np; - for (; np > limit && np[-1] != '\r' && np[-1] != '\n'; --np) - if (np[-1] == 0) - return np; - if (*np != '#') - return p; - } -} - -/* - * Skip over whitespace, comments, and preprocessor directives, - * in either direction. - */ -char * -skipspace(p, dir) - char *p; - int dir; /* 1 for forward, -1 for backward */ -{ - for ( ; ; ) { - while ( is_space(*p) ) - p += dir; - if ( !(*p == '/' && p[dir] == '*') ) - break; - p += dir; p += dir; - while ( !(*p == '*' && p[dir] == '/') ) { - if ( *p == 0 ) - return p; /* multi-line comment?? */ - p += dir; - } - p += dir; p += dir; - } - return p; -} - -/* Scan over a quoted string, in either direction. */ -char * -scanstring(p, dir) - char *p; - int dir; -{ - for (p += dir; ; p += dir) - if (*p == '"' && p[-dir] != '\\') - return p + dir; -} - -/* - * Write blanks over part of a string. - * Don't overwrite end-of-line characters. - */ -int -writeblanks(start, end) - char *start; - char *end; -{ char *p; - for ( p = start; p < end; p++ ) - if ( *p != '\r' && *p != '\n' ) - *p = ' '; - return 0; -} - -/* - * Test whether the string in buf is a function definition. - * The string may contain and/or end with a newline. - * Return as follows: - * 0 - definitely not a function definition; - * 1 - definitely a function definition; - * 2 - definitely a function prototype (NOT USED); - * -1 - may be the beginning of a function definition, - * append another line and look again. - * The reason we don't attempt to convert function prototypes is that - * Ghostscript's declaration-generating macros look too much like - * prototypes, and confuse the algorithms. - */ -int -test1(buf) - char *buf; -{ char *p = buf; - char *bend; - char *endfn; - int contin; - - if ( !isidfirstchar(*p) ) - return 0; /* no name at left margin */ - bend = skipspace(ppdirbackward(buf + strlen(buf) - 1, buf), -1); - switch ( *bend ) - { - case ';': contin = 0 /*2*/; break; - case ')': contin = 1; break; - case '{': return 0; /* not a function */ - case '}': return 0; /* not a function */ - default: contin = -1; - } - while ( isidchar(*p) ) - p++; - endfn = p; - p = skipspace(p, 1); - if ( *p++ != '(' ) - return 0; /* not a function */ - p = skipspace(p, 1); - if ( *p == ')' ) - return 0; /* no parameters */ - /* Check that the apparent function name isn't a keyword. */ - /* We only need to check for keywords that could be followed */ - /* by a left parenthesis (which, unfortunately, is most of them). */ - { static char *words[] = - { "asm", "auto", "case", "char", "const", "double", - "extern", "float", "for", "if", "int", "long", - "register", "return", "short", "signed", "sizeof", - "static", "switch", "typedef", "unsigned", - "void", "volatile", "while", 0 - }; - char **key = words; - char *kp; - unsigned len = endfn - buf; - - while ( (kp = *key) != 0 ) - { if ( strlen(kp) == len && !strncmp(kp, buf, len) ) - return 0; /* name is a keyword */ - key++; - } - } - { - char *id = p; - int len; - /* - * Check for identifier1(identifier2) and not - * identifier1(void), or identifier1(identifier2, xxxx). - */ - - while ( isidchar(*p) ) - p++; - len = p - id; - p = skipspace(p, 1); - if (*p == ',' || - (*p == ')' && (len != 4 || strncmp(id, "void", 4))) - ) - return 0; /* not a function */ - } - /* - * If the last significant character was a ), we need to count - * parentheses, because it might be part of a formal parameter - * that is a procedure. - */ - if (contin > 0) { - int level = 0; - - for (p = skipspace(buf, 1); *p; p = skipspace(p + 1, 1)) - level += (*p == '(' ? 1 : *p == ')' ? -1 : 0); - if (level > 0) - contin = -1; - } - return contin; -} - -/* Convert a recognized function definition or header to K&R syntax. */ -int -convert1(buf, out, header, convert_varargs) - char *buf; - FILE *out; - int header; /* Boolean */ - int convert_varargs; /* Boolean */ -{ char *endfn; - char *p; - /* - * The breaks table contains pointers to the beginning and end - * of each argument. - */ - char **breaks; - unsigned num_breaks = 2; /* for testing */ - char **btop; - char **bp; - char **ap; - char *vararg = 0; - - /* Pre-ANSI implementations don't agree on whether strchr */ - /* is called strchr or index, so we open-code it here. */ - for ( endfn = buf; *(endfn++) != '('; ) - ; -top: p = endfn; - breaks = (char **)malloc(sizeof(char *) * num_breaks * 2); - if ( breaks == NULL ) - { /* Couldn't allocate break table, give up */ - fprintf(stderr, "Unable to allocate break table!\n"); - fputs(buf, out); - return -1; - } - btop = breaks + num_breaks * 2 - 2; - bp = breaks; - /* Parse the argument list */ - do - { int level = 0; - char *lp = NULL; - char *rp = NULL; - char *end = NULL; - - if ( bp >= btop ) - { /* Filled up break table. */ - /* Allocate a bigger one and start over. */ - free((char *)breaks); - num_breaks <<= 1; - goto top; - } - *bp++ = p; - /* Find the end of the argument */ - for ( ; end == NULL; p++ ) - { switch(*p) - { - case ',': - if ( !level ) end = p; - break; - case '(': - if ( !level ) lp = p; - level++; - break; - case ')': - if ( --level < 0 ) end = p; - else rp = p; - break; - case '/': - if (p[1] == '*') - p = skipspace(p, 1) - 1; - break; - case '"': - p = scanstring(p, 1) - 1; - break; - default: - ; - } - } - /* Erase any embedded prototype parameters. */ - if ( lp && rp ) - writeblanks(lp + 1, rp); - p--; /* back up over terminator */ - /* Find the name being declared. */ - /* This is complicated because of procedure and */ - /* array modifiers. */ - for ( ; ; ) - { p = skipspace(p - 1, -1); - switch ( *p ) - { - case ']': /* skip array dimension(s) */ - case ')': /* skip procedure args OR name */ - { int level = 1; - while ( level ) - switch ( *--p ) - { - case ']': case ')': - level++; - break; - case '[': case '(': - level--; - break; - case '/': - if (p > buf && p[-1] == '*') - p = skipspace(p, -1) + 1; - break; - case '"': - p = scanstring(p, -1) + 1; - break; - default: ; - } - } - if ( *p == '(' && *skipspace(p + 1, 1) == '*' ) - { /* We found the name being declared */ - while ( !isidfirstchar(*p) ) - p = skipspace(p, 1) + 1; - goto found; - } - break; - default: - goto found; - } - } -found: if ( *p == '.' && p[-1] == '.' && p[-2] == '.' ) - { if ( convert_varargs ) - { *bp++ = "va_alist"; - vararg = p-2; - } - else - { p++; - if ( bp == breaks + 1 ) /* sole argument */ - writeblanks(breaks[0], p); - else - writeblanks(bp[-1] - 1, p); - bp--; - } - } - else - { while ( isidchar(*p) ) p--; - *bp++ = p+1; - } - p = end; - } - while ( *p++ == ',' ); - *bp = p; - /* Make a special check for 'void' arglist */ - if ( bp == breaks+2 ) - { p = skipspace(breaks[0], 1); - if ( !strncmp(p, "void", 4) ) - { p = skipspace(p+4, 1); - if ( p == breaks[2] - 1 ) - { bp = breaks; /* yup, pretend arglist is empty */ - writeblanks(breaks[0], p + 1); - } - } - } - /* Put out the function name and left parenthesis. */ - p = buf; - while ( p != endfn ) putc(*p, out), p++; - /* Put out the declaration. */ - if ( header ) - { fputs(");", out); - for ( p = breaks[0]; *p; p++ ) - if ( *p == '\r' || *p == '\n' ) - putc(*p, out); - } - else - { for ( ap = breaks+1; ap < bp; ap += 2 ) - { p = *ap; - while ( isidchar(*p) ) - putc(*p, out), p++; - if ( ap < bp - 1 ) - fputs(", ", out); - } - fputs(") ", out); - /* Put out the argument declarations */ - for ( ap = breaks+2; ap <= bp; ap += 2 ) - (*ap)[-1] = ';'; - if ( vararg != 0 ) - { *vararg = 0; - fputs(breaks[0], out); /* any prior args */ - fputs("va_dcl", out); /* the final arg */ - fputs(bp[0], out); - } - else - fputs(breaks[0], out); - } - free((char *)breaks); - return 0; -} diff --git a/jpeg/cderror.h b/jpeg/cderror.h deleted file mode 100755 index e19c475..0000000 --- a/jpeg/cderror.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * cderror.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the error and message codes for the cjpeg/djpeg - * applications. These strings are not needed as part of the JPEG library - * proper. - * Edit this file to add new codes, or to translate the message strings to - * some other language. - */ - -/* - * To define the enum list of message codes, include this file without - * defining macro JMESSAGE. To create a message string table, include it - * again with a suitable JMESSAGE definition (see jerror.c for an example). - */ -#ifndef JMESSAGE -#ifndef CDERROR_H -#define CDERROR_H -/* First time through, define the enum list */ -#define JMAKE_ENUM_LIST -#else -/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ -#define JMESSAGE(code,string) -#endif /* CDERROR_H */ -#endif /* JMESSAGE */ - -#ifdef JMAKE_ENUM_LIST - -typedef enum { - -#define JMESSAGE(code,string) code , - -#endif /* JMAKE_ENUM_LIST */ - -JMESSAGE(JMSG_FIRSTADDONCODE=1000, NULL) /* Must be first entry! */ - -#ifdef BMP_SUPPORTED -JMESSAGE(JERR_BMP_BADCMAP, "Unsupported BMP colormap format") -JMESSAGE(JERR_BMP_BADDEPTH, "Only 8- and 24-bit BMP files are supported") -JMESSAGE(JERR_BMP_BADHEADER, "Invalid BMP file: bad header length") -JMESSAGE(JERR_BMP_BADPLANES, "Invalid BMP file: biPlanes not equal to 1") -JMESSAGE(JERR_BMP_COLORSPACE, "BMP output must be grayscale or RGB") -JMESSAGE(JERR_BMP_COMPRESSED, "Sorry, compressed BMPs not yet supported") -JMESSAGE(JERR_BMP_EMPTY, "Empty BMP image") -JMESSAGE(JERR_BMP_NOT, "Not a BMP file - does not start with BM") -JMESSAGE(JTRC_BMP, "%ux%u 24-bit BMP image") -JMESSAGE(JTRC_BMP_MAPPED, "%ux%u 8-bit colormapped BMP image") -JMESSAGE(JTRC_BMP_OS2, "%ux%u 24-bit OS2 BMP image") -JMESSAGE(JTRC_BMP_OS2_MAPPED, "%ux%u 8-bit colormapped OS2 BMP image") -#endif /* BMP_SUPPORTED */ - -#ifdef GIF_SUPPORTED -JMESSAGE(JERR_GIF_BUG, "GIF output got confused") -JMESSAGE(JERR_GIF_CODESIZE, "Bogus GIF codesize %d") -JMESSAGE(JERR_GIF_COLORSPACE, "GIF output must be grayscale or RGB") -JMESSAGE(JERR_GIF_IMAGENOTFOUND, "Too few images in GIF file") -JMESSAGE(JERR_GIF_NOT, "Not a GIF file") -JMESSAGE(JTRC_GIF, "%ux%ux%d GIF image") -JMESSAGE(JTRC_GIF_BADVERSION, - "Warning: unexpected GIF version number '%c%c%c'") -JMESSAGE(JTRC_GIF_EXTENSION, "Ignoring GIF extension block of type 0x%02x") -JMESSAGE(JTRC_GIF_NONSQUARE, "Caution: nonsquare pixels in input") -JMESSAGE(JWRN_GIF_BADDATA, "Corrupt data in GIF file") -JMESSAGE(JWRN_GIF_CHAR, "Bogus char 0x%02x in GIF file, ignoring") -JMESSAGE(JWRN_GIF_ENDCODE, "Premature end of GIF image") -JMESSAGE(JWRN_GIF_NOMOREDATA, "Ran out of GIF bits") -#endif /* GIF_SUPPORTED */ - -#ifdef PPM_SUPPORTED -JMESSAGE(JERR_PPM_COLORSPACE, "PPM output must be grayscale or RGB") -JMESSAGE(JERR_PPM_NONNUMERIC, "Nonnumeric data in PPM file") -JMESSAGE(JERR_PPM_NOT, "Not a PPM/PGM file") -JMESSAGE(JTRC_PGM, "%ux%u PGM image") -JMESSAGE(JTRC_PGM_TEXT, "%ux%u text PGM image") -JMESSAGE(JTRC_PPM, "%ux%u PPM image") -JMESSAGE(JTRC_PPM_TEXT, "%ux%u text PPM image") -#endif /* PPM_SUPPORTED */ - -#ifdef RLE_SUPPORTED -JMESSAGE(JERR_RLE_BADERROR, "Bogus error code from RLE library") -JMESSAGE(JERR_RLE_COLORSPACE, "RLE output must be grayscale or RGB") -JMESSAGE(JERR_RLE_DIMENSIONS, "Image dimensions (%ux%u) too large for RLE") -JMESSAGE(JERR_RLE_EMPTY, "Empty RLE file") -JMESSAGE(JERR_RLE_EOF, "Premature EOF in RLE header") -JMESSAGE(JERR_RLE_MEM, "Insufficient memory for RLE header") -JMESSAGE(JERR_RLE_NOT, "Not an RLE file") -JMESSAGE(JERR_RLE_TOOMANYCHANNELS, "Cannot handle %d output channels for RLE") -JMESSAGE(JERR_RLE_UNSUPPORTED, "Cannot handle this RLE setup") -JMESSAGE(JTRC_RLE, "%ux%u full-color RLE file") -JMESSAGE(JTRC_RLE_FULLMAP, "%ux%u full-color RLE file with map of length %d") -JMESSAGE(JTRC_RLE_GRAY, "%ux%u grayscale RLE file") -JMESSAGE(JTRC_RLE_MAPGRAY, "%ux%u grayscale RLE file with map of length %d") -JMESSAGE(JTRC_RLE_MAPPED, "%ux%u colormapped RLE file with map of length %d") -#endif /* RLE_SUPPORTED */ - -#ifdef TARGA_SUPPORTED -JMESSAGE(JERR_TGA_BADCMAP, "Unsupported Targa colormap format") -JMESSAGE(JERR_TGA_BADPARMS, "Invalid or unsupported Targa file") -JMESSAGE(JERR_TGA_COLORSPACE, "Targa output must be grayscale or RGB") -JMESSAGE(JTRC_TGA, "%ux%u RGB Targa image") -JMESSAGE(JTRC_TGA_GRAY, "%ux%u grayscale Targa image") -JMESSAGE(JTRC_TGA_MAPPED, "%ux%u colormapped Targa image") -#else -JMESSAGE(JERR_TGA_NOTCOMP, "Targa support was not compiled") -#endif /* TARGA_SUPPORTED */ - -JMESSAGE(JERR_BAD_CMAP_FILE, - "Color map file is invalid or of unsupported format") -JMESSAGE(JERR_TOO_MANY_COLORS, - "Output file format cannot handle %d colormap entries") -JMESSAGE(JERR_UNGETC_FAILED, "ungetc failed") -#ifdef TARGA_SUPPORTED -JMESSAGE(JERR_UNKNOWN_FORMAT, - "Unrecognized input file format --- perhaps you need -targa") -#else -JMESSAGE(JERR_UNKNOWN_FORMAT, "Unrecognized input file format") -#endif -JMESSAGE(JERR_UNSUPPORTED_FORMAT, "Unsupported output file format") - -#ifdef JMAKE_ENUM_LIST - - JMSG_LASTADDONCODE -} ADDON_MESSAGE_CODE; - -#undef JMAKE_ENUM_LIST -#endif /* JMAKE_ENUM_LIST */ - -/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ -#undef JMESSAGE diff --git a/jpeg/cdjpeg.c b/jpeg/cdjpeg.c deleted file mode 100755 index b6250ff..0000000 --- a/jpeg/cdjpeg.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * cdjpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains common support routines used by the IJG application - * programs (cjpeg, djpeg, jpegtran). - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include /* to declare isupper(), tolower() */ -#ifdef NEED_SIGNAL_CATCHER -#include /* to declare signal() */ -#endif -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - - -/* - * Signal catcher to ensure that temporary files are removed before aborting. - * NB: for Amiga Manx C this is actually a global routine named _abort(); - * we put "#define signal_catcher _abort" in jconfig.h. Talk about bogus... - */ - -#ifdef NEED_SIGNAL_CATCHER - -static j_common_ptr sig_cinfo; - -void /* must be global for Manx C */ -signal_catcher (int signum) -{ - if (sig_cinfo != NULL) { - if (sig_cinfo->err != NULL) /* turn off trace output */ - sig_cinfo->err->trace_level = 0; - jpeg_destroy(sig_cinfo); /* clean up memory allocation & temp files */ - } - exit(EXIT_FAILURE); -} - - -GLOBAL(void) -enable_signal_catcher (j_common_ptr cinfo) -{ - sig_cinfo = cinfo; -#ifdef SIGINT /* not all systems have SIGINT */ - signal(SIGINT, signal_catcher); -#endif -#ifdef SIGTERM /* not all systems have SIGTERM */ - signal(SIGTERM, signal_catcher); -#endif -} - -#endif - - -/* - * Optional progress monitor: display a percent-done figure on stderr. - */ - -#ifdef PROGRESS_REPORT - -METHODDEF(void) -progress_monitor (j_common_ptr cinfo) -{ - cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress; - int total_passes = prog->pub.total_passes + prog->total_extra_passes; - int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit); - - if (percent_done != prog->percent_done) { - prog->percent_done = percent_done; - if (total_passes > 1) { - fprintf(stderr, "\rPass %d/%d: %3d%% ", - prog->pub.completed_passes + prog->completed_extra_passes + 1, - total_passes, percent_done); - } else { - fprintf(stderr, "\r %3d%% ", percent_done); - } - fflush(stderr); - } -} - - -GLOBAL(void) -start_progress_monitor (j_common_ptr cinfo, cd_progress_ptr progress) -{ - /* Enable progress display, unless trace output is on */ - if (cinfo->err->trace_level == 0) { - progress->pub.progress_monitor = progress_monitor; - progress->completed_extra_passes = 0; - progress->total_extra_passes = 0; - progress->percent_done = -1; - cinfo->progress = &progress->pub; - } -} - - -GLOBAL(void) -end_progress_monitor (j_common_ptr cinfo) -{ - /* Clear away progress display */ - if (cinfo->err->trace_level == 0) { - fprintf(stderr, "\r \r"); - fflush(stderr); - } -} - -#endif - - -/* - * Case-insensitive matching of possibly-abbreviated keyword switches. - * keyword is the constant keyword (must be lower case already), - * minchars is length of minimum legal abbreviation. - */ - -GLOBAL(boolean) -keymatch (char * arg, const char * keyword, int minchars) -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return FALSE; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return FALSE; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return FALSE; - return TRUE; /* A-OK */ -} - - -/* - * Routines to establish binary I/O mode for stdin and stdout. - * Non-Unix systems often require some hacking to get out of text mode. - */ - -GLOBAL(FILE *) -read_stdin (void) -{ - FILE * input_file = stdin; - -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "Cannot reopen stdin\n"); - exit(EXIT_FAILURE); - } -#endif - return input_file; -} - - -GLOBAL(FILE *) -write_stdout (void) -{ - FILE * output_file = stdout; - -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdout), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { - fprintf(stderr, "Cannot reopen stdout\n"); - exit(EXIT_FAILURE); - } -#endif - return output_file; -} diff --git a/jpeg/cdjpeg.h b/jpeg/cdjpeg.h deleted file mode 100755 index ed024ac..0000000 --- a/jpeg/cdjpeg.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * cdjpeg.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains common declarations for the sample applications - * cjpeg and djpeg. It is NOT used by the core JPEG library. - */ - -#define JPEG_CJPEG_DJPEG /* define proper options in jconfig.h */ -#define JPEG_INTERNAL_OPTIONS /* cjpeg.c,djpeg.c need to see xxx_SUPPORTED */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" /* get library error codes too */ -#include "cderror.h" /* get application-specific error codes */ - - -/* - * Object interface for cjpeg's source file decoding modules - */ - -typedef struct cjpeg_source_struct * cjpeg_source_ptr; - -struct cjpeg_source_struct { - JMETHOD(void, start_input, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - JMETHOD(void, finish_input, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); - - FILE *input_file; - - JSAMPARRAY buffer; - JDIMENSION buffer_height; -}; - - -/* - * Object interface for djpeg's output file encoding modules - */ - -typedef struct djpeg_dest_struct * djpeg_dest_ptr; - -struct djpeg_dest_struct { - /* start_output is called after jpeg_start_decompress finishes. - * The color map will be ready at this time, if one is needed. - */ - JMETHOD(void, start_output, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo)); - /* Emit the specified number of pixel rows from the buffer. */ - JMETHOD(void, put_pixel_rows, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied)); - /* Finish up at the end of the image. */ - JMETHOD(void, finish_output, (j_decompress_ptr cinfo, - djpeg_dest_ptr dinfo)); - - /* Target file spec; filled in by djpeg.c after object is created. */ - FILE * output_file; - - /* Output pixel-row buffer. Created by module init or start_output. - * Width is cinfo->output_width * cinfo->output_components; - * height is buffer_height. - */ - JSAMPARRAY buffer; - JDIMENSION buffer_height; -}; - - -/* - * cjpeg/djpeg may need to perform extra passes to convert to or from - * the source/destination file format. The JPEG library does not know - * about these passes, but we'd like them to be counted by the progress - * monitor. We use an expanded progress monitor object to hold the - * additional pass count. - */ - -struct cdjpeg_progress_mgr { - struct jpeg_progress_mgr pub; /* fields known to JPEG library */ - int completed_extra_passes; /* extra passes completed */ - int total_extra_passes; /* total extra */ - /* last printed percentage stored here to avoid multiple printouts */ - int percent_done; -}; - -typedef struct cdjpeg_progress_mgr * cd_progress_ptr; - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jinit_read_bmp jIRdBMP -#define jinit_write_bmp jIWrBMP -#define jinit_read_gif jIRdGIF -#define jinit_write_gif jIWrGIF -#define jinit_read_ppm jIRdPPM -#define jinit_write_ppm jIWrPPM -#define jinit_read_rle jIRdRLE -#define jinit_write_rle jIWrRLE -#define jinit_read_targa jIRdTarga -#define jinit_write_targa jIWrTarga -#define read_quant_tables RdQTables -#define read_scan_script RdScnScript -#define set_quality_ratings SetQRates -#define set_quant_slots SetQSlots -#define set_sample_factors SetSFacts -#define read_color_map RdCMap -#define enable_signal_catcher EnSigCatcher -#define start_progress_monitor StProgMon -#define end_progress_monitor EnProgMon -#define read_stdin RdStdin -#define write_stdout WrStdout -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - -/* Module selection routines for I/O modules. */ - -EXTERN(cjpeg_source_ptr) jinit_read_bmp JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_bmp JPP((j_decompress_ptr cinfo, - boolean is_os2)); -EXTERN(cjpeg_source_ptr) jinit_read_gif JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_gif JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_ppm JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_ppm JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_rle JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_rle JPP((j_decompress_ptr cinfo)); -EXTERN(cjpeg_source_ptr) jinit_read_targa JPP((j_compress_ptr cinfo)); -EXTERN(djpeg_dest_ptr) jinit_write_targa JPP((j_decompress_ptr cinfo)); - -/* cjpeg support routines (in rdswitch.c) */ - -EXTERN(boolean) read_quant_tables JPP((j_compress_ptr cinfo, char * filename, - boolean force_baseline)); -EXTERN(boolean) read_scan_script JPP((j_compress_ptr cinfo, char * filename)); -EXTERN(boolean) set_quality_ratings JPP((j_compress_ptr cinfo, char *arg, - boolean force_baseline)); -EXTERN(boolean) set_quant_slots JPP((j_compress_ptr cinfo, char *arg)); -EXTERN(boolean) set_sample_factors JPP((j_compress_ptr cinfo, char *arg)); - -/* djpeg support routines (in rdcolmap.c) */ - -EXTERN(void) read_color_map JPP((j_decompress_ptr cinfo, FILE * infile)); - -/* common support routines (in cdjpeg.c) */ - -EXTERN(void) enable_signal_catcher JPP((j_common_ptr cinfo)); -EXTERN(void) start_progress_monitor JPP((j_common_ptr cinfo, - cd_progress_ptr progress)); -EXTERN(void) end_progress_monitor JPP((j_common_ptr cinfo)); -EXTERN(boolean) keymatch JPP((char * arg, const char * keyword, int minchars)); -EXTERN(FILE *) read_stdin JPP((void)); -EXTERN(FILE *) write_stdout JPP((void)); - -/* miscellaneous useful macros */ - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define WRITE_BINARY "w" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define WRITE_BINARY "wb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define WRITE_BINARY "wb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif -#ifndef EXIT_WARNING -#ifdef VMS -#define EXIT_WARNING 1 /* VMS is very nonstandard */ -#else -#define EXIT_WARNING 2 -#endif -#endif diff --git a/jpeg/change.log b/jpeg/change.log deleted file mode 100755 index 729bca6..0000000 --- a/jpeg/change.log +++ /dev/null @@ -1,346 +0,0 @@ -CHANGE LOG for Independent JPEG Group's JPEG software - - -Version 8d 15-Jan-2012 ------------------------ - -Add cjpeg -rgb option to create RGB JPEG files. -Using this switch suppresses the conversion from RGB -colorspace input to the default YCbCr JPEG colorspace. -This feature allows true lossless JPEG coding of RGB color images. -The recommended command for this purpose is currently -cjpeg -rgb -block 1 -arithmetic. -SmartScale capable decoder (introduced with IJG JPEG 8) required. -Thank to Michael Koch for the initial suggestion. - -Add option to disable the region adjustment in the transupp crop code. -Thank to Jeffrey Friedl for the suggestion. - -Thank to Richard Jones and Edd Dawson for various minor corrections. - -Thank to Akim Demaille for configure.ac cleanup. - - -Version 8c 16-Jan-2011 ------------------------ - -Add option to compression library and cjpeg (-block N) to use -different DCT block size. -All N from 1 to 16 are possible. Default is 8 (baseline format). -Larger values produce higher compression, -smaller values produce higher quality. -SmartScale capable decoder (introduced with IJG JPEG 8) required. - - -Version 8b 16-May-2010 ------------------------ - -Repair problem in new memory source manager with corrupt JPEG data. -Thank to Ted Campbell and Samuel Chun for the report. - -Repair problem in Makefile.am test target. -Thank to anonymous user for the report. - -Support MinGW installation with automatic configure. -Thank to Volker Grabsch for the suggestion. - - -Version 8a 28-Feb-2010 ------------------------ - -Writing tables-only datastreams via jpeg_write_tables works again. - -Support 32-bit BMPs (RGB image with Alpha channel) for read in cjpeg. -Thank to Brett Blackham for the suggestion. - -Improve accuracy in floating point IDCT calculation. -Thank to Robert Hooke for the hint. - - -Version 8 10-Jan-2010 ----------------------- - -jpegtran now supports the same -scale option as djpeg for "lossless" resize. -An implementation of the JPEG SmartScale extension is required for this -feature. A (draft) specification of the JPEG SmartScale extension is -available as a contributed document at ITU and ISO. Revision 2 or later -of the document is required (latest document version is Revision 3). -The SmartScale extension will enable more features beside lossless resize -in future implementations, as described in the document (new compression -options). - -Add sanity check in BMP reader module to avoid cjpeg crash for empty input -image (thank to Isaev Ildar of ISP RAS, Moscow, RU for reporting this error). - -Add data source and destination managers for read from and write to -memory buffers. New API functions jpeg_mem_src and jpeg_mem_dest. -Thank to Roberto Boni from Italy for the suggestion. - - -Version 7 27-Jun-2009 ----------------------- - -New scaled DCTs implemented. -djpeg now supports scalings N/8 with all N from 1 to 16. -cjpeg now supports scalings 8/N with all N from 1 to 16. -Scaled DCTs with size larger than 8 are now also used for resolving the -common 2x2 chroma subsampling case without additional spatial resampling. -Separate spatial resampling for those kind of files is now only necessary -for N>8 scaling cases. -Furthermore, separate scaled DCT functions are provided for direct resolving -of the common asymmetric subsampling cases (2x1 and 1x2) without additional -spatial resampling. - -cjpeg -quality option has been extended for support of separate quality -settings for luminance and chrominance (or in general, for every provided -quantization table slot). -New API function jpeg_default_qtables() and q_scale_factor array in library. - -Added -nosmooth option to cjpeg, complementary to djpeg. -New variable "do_fancy_downsampling" in library, complement to fancy -upsampling. Fancy upsampling now uses direct DCT scaling with sizes -larger than 8. The old method is not reversible and has been removed. - -Support arithmetic entropy encoding and decoding. -Added files jaricom.c, jcarith.c, jdarith.c. - -Straighten the file structure: -Removed files jidctred.c, jcphuff.c, jchuff.h, jdphuff.c, jdhuff.h. - -jpegtran has a new "lossless" cropping feature. - -Implement -perfect option in jpegtran, new API function -jtransform_perfect_transform() in transupp. (DP 204_perfect.dpatch) - -Better error messages for jpegtran fopen failure. -(DP 203_jpegtran_errmsg.dpatch) - -Fix byte order issue with 16bit PPM/PGM files in rdppm.c/wrppm.c: -according to Netpbm, the de facto standard implementation of the PNM formats, -the most significant byte is first. (DP 203_rdppm.dpatch) - -Add -raw option to rdjpgcom not to mangle the output. -(DP 205_rdjpgcom_raw.dpatch) - -Make rdjpgcom locale aware. (DP 201_rdjpgcom_locale.dpatch) - -Add extern "C" to jpeglib.h. -This avoids the need to put extern "C" { ... } around #include "jpeglib.h" -in your C++ application. Defining the symbol DONT_USE_EXTERN_C in the -configuration prevents this. (DP 202_jpeglib.h_c++.dpatch) - - -Version 6b 27-Mar-1998 ------------------------ - -jpegtran has new features for lossless image transformations (rotation -and flipping) as well as "lossless" reduction to grayscale. - -jpegtran now copies comments by default; it has a -copy switch to enable -copying all APPn blocks as well, or to suppress comments. (Formerly it -always suppressed comments and APPn blocks.) jpegtran now also preserves -JFIF version and resolution information. - -New decompressor library feature: COM and APPn markers found in the input -file can be saved in memory for later use by the application. (Before, -you had to code this up yourself with a custom marker processor.) - -There is an unused field "void * client_data" now in compress and decompress -parameter structs; this may be useful in some applications. - -JFIF version number information is now saved by the decoder and accepted by -the encoder. jpegtran uses this to copy the source file's version number, -to ensure "jpegtran -copy all" won't create bogus files that contain JFXX -extensions but claim to be version 1.01. Applications that generate their -own JFXX extension markers also (finally) have a supported way to cause the -encoder to emit JFIF version number 1.02. - -djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather -than as unknown APP0 markers. - -In -verbose mode, djpeg and rdjpgcom will try to print the contents of -APP12 markers as text. Some digital cameras store useful text information -in APP12 markers. - -Handling of truncated data streams is more robust: blocks beyond the one in -which the error occurs will be output as uniform gray, or left unchanged -if decoding a progressive JPEG. The appearance no longer depends on the -Huffman tables being used. - -Huffman tables are checked for validity much more carefully than before. - -To avoid the Unisys LZW patent, djpeg's GIF output capability has been -changed to produce "uncompressed GIFs", and cjpeg's GIF input capability -has been removed altogether. We're not happy about it either, but there -seems to be no good alternative. - -The configure script now supports building libjpeg as a shared library -on many flavors of Unix (all the ones that GNU libtool knows how to -build shared libraries for). Use "./configure --enable-shared" to -try this out. - -New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio. -Also, a jconfig file and a build script for Metrowerks CodeWarrior -on Apple Macintosh. makefile.dj has been updated for DJGPP v2, and there -are miscellaneous other minor improvements in the makefiles. - -jmemmac.c now knows how to create temporary files following Mac System 7 -conventions. - -djpeg's -map switch is now able to read raw-format PPM files reliably. - -cjpeg -progressive -restart no longer generates any unnecessary DRI markers. - -Multiple calls to jpeg_simple_progression for a single JPEG object -no longer leak memory. - - -Version 6a 7-Feb-96 --------------------- - -Library initialization sequence modified to detect version mismatches -and struct field packing mismatches between library and calling application. -This change requires applications to be recompiled, but does not require -any application source code change. - -All routine declarations changed to the style "GLOBAL(type) name ...", -that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the -routine's return type as an argument. This makes it possible to add -Microsoft-style linkage keywords to all the routines by changing just -these macros. Note that any application code that was using these macros -will have to be changed. - -DCT coefficient quantization tables are now stored in normal array order -rather than zigzag order. Application code that calls jpeg_add_quant_table, -or otherwise manipulates quantization tables directly, will need to be -changed. If you need to make such code work with either older or newer -versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is -recommended. - -djpeg's trace capability now dumps DQT tables in natural order, not zigzag -order. This allows the trace output to be made into a "-qtables" file -more easily. - -New system-dependent memory manager module for use on Apple Macintosh. - -Fix bug in cjpeg's -smooth option: last one or two scanlines would be -duplicates of the prior line unless the image height mod 16 was 1 or 2. - -Repair minor problems in VMS, BCC, MC6 makefiles. - -New configure script based on latest GNU Autoconf. - -Correct the list of include files needed by MetroWerks C for ccommand(). - -Numerous small documentation updates. - - -Version 6 2-Aug-95 -------------------- - -Progressive JPEG support: library can read and write full progressive JPEG -files. A "buffered image" mode supports incremental decoding for on-the-fly -display of progressive images. Simply recompiling an existing IJG-v5-based -decoder with v6 should allow it to read progressive files, though of course -without any special progressive display. - -New "jpegtran" application performs lossless transcoding between different -JPEG formats; primarily, it can be used to convert baseline to progressive -JPEG and vice versa. In support of jpegtran, the library now allows lossless -reading and writing of JPEG files as DCT coefficient arrays. This ability -may be of use in other applications. - -Notes for programmers: -* We changed jpeg_start_decompress() to be able to suspend; this makes all -decoding modes available to suspending-input applications. However, -existing applications that use suspending input will need to be changed -to check the return value from jpeg_start_decompress(). You don't need to -do anything if you don't use a suspending data source. -* We changed the interface to the virtual array routines: access_virt_array -routines now take a count of the number of rows to access this time. The -last parameter to request_virt_array routines is now interpreted as the -maximum number of rows that may be accessed at once, but not necessarily -the height of every access. - - -Version 5b 15-Mar-95 ---------------------- - -Correct bugs with grayscale images having v_samp_factor > 1. - -jpeg_write_raw_data() now supports output suspension. - -Correct bugs in "configure" script for case of compiling in -a directory other than the one containing the source files. - -Repair bug in jquant1.c: sometimes didn't use as many colors as it could. - -Borland C makefile and jconfig file work under either MS-DOS or OS/2. - -Miscellaneous improvements to documentation. - - -Version 5a 7-Dec-94 --------------------- - -Changed color conversion roundoff behavior so that grayscale values are -represented exactly. (This causes test image files to change.) - -Make ordered dither use 16x16 instead of 4x4 pattern for a small quality -improvement. - -New configure script based on latest GNU Autoconf. -Fix configure script to handle CFLAGS correctly. -Rename *.auto files to *.cfg, so that configure script still works if -file names have been truncated for DOS. - -Fix bug in rdbmp.c: didn't allow for extra data between header and image. - -Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data. - -Fix several bugs in rdrle.c. - -NEED_SHORT_EXTERNAL_NAMES option was broken. - -Revise jerror.h/jerror.c for more flexibility in message table. - -Repair oversight in jmemname.c NO_MKTEMP case: file could be there -but unreadable. - - -Version 5 24-Sep-94 --------------------- - -Version 5 represents a nearly complete redesign and rewrite of the IJG -software. Major user-visible changes include: - * Automatic configuration simplifies installation for most Unix systems. - * A range of speed vs. image quality tradeoffs are supported. - This includes resizing of an image during decompression: scaling down - by a factor of 1/2, 1/4, or 1/8 is handled very efficiently. - * New programs rdjpgcom and wrjpgcom allow insertion and extraction - of text comments in a JPEG file. - -The application programmer's interface to the library has changed completely. -Notable improvements include: - * We have eliminated the use of callback routines for handling the - uncompressed image data. The application now sees the library as a - set of routines that it calls to read or write image data on a - scanline-by-scanline basis. - * The application image data is represented in a conventional interleaved- - pixel format, rather than as a separate array for each color channel. - This can save a copying step in many programs. - * The handling of compressed data has been cleaned up: the application can - supply routines to source or sink the compressed data. It is possible to - suspend processing on source/sink buffer overrun, although this is not - supported in all operating modes. - * All static state has been eliminated from the library, so that multiple - instances of compression or decompression can be active concurrently. - * JPEG abbreviated datastream formats are supported, ie, quantization and - Huffman tables can be stored separately from the image data. - * And not only that, but the documentation of the library has improved - considerably! - - -The last widely used release before the version 5 rewrite was version 4A of -18-Feb-93. Change logs before that point have been discarded, since they -are not of much interest after the rewrite. diff --git a/jpeg/cjpeg.1 b/jpeg/cjpeg.1 deleted file mode 100755 index c10f971..0000000 --- a/jpeg/cjpeg.1 +++ /dev/null @@ -1,348 +0,0 @@ -.TH CJPEG 1 "28 August 2011" -.SH NAME -cjpeg \- compress an image file to a JPEG file -.SH SYNOPSIS -.B cjpeg -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B cjpeg -compresses the named image file, or the standard input if no file is -named, and produces a JPEG/JFIF file on the standard output. -The currently supported input file formats are: PPM (PBMPLUS color -format), PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster -Toolkit format). (RLE is supported only if the URT library is available.) -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-grayscale -may be written -.B \-gray -or -.BR \-gr . -Most of the "basic" switches can be abbreviated to as little as one letter. -Upper and lower case are equivalent (thus -.B \-BMP -is the same as -.BR \-bmp ). -British spellings are also accepted (e.g., -.BR \-greyscale ), -though for brevity these are not mentioned below. -.PP -The basic switches are: -.TP -.BI \-quality " N[,...]" -Scale quantization tables to adjust image quality. Quality is 0 (worst) to -100 (best); default is 75. (See below for more info.) -.TP -.B \-grayscale -Create monochrome JPEG file from color input. Be sure to use this switch when -compressing a grayscale BMP file, because -.B cjpeg -isn't bright enough to notice whether a BMP file uses only shades of gray. -By saying -.BR \-grayscale , -you'll get a smaller JPEG file that takes less time to process. -.TP -.B \-rgb -Create RGB JPEG file. -Using this switch suppresses the conversion from RGB -colorspace input to the default YCbCr JPEG colorspace. -Use this switch in combination with the -.BI \-block " N" -switch (see below) for lossless JPEG coding. -.TP -.B \-optimize -Perform optimization of entropy encoding parameters. Without this, default -encoding parameters are used. -.B \-optimize -usually makes the JPEG file a little smaller, but -.B cjpeg -runs somewhat slower and needs much more memory. Image quality and speed of -decompression are unaffected by -.BR \-optimize . -.TP -.B \-progressive -Create progressive JPEG file (see below). -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. Currently supported scale factors are -M/N with all N from 1 to 16, where M is the destination DCT size, which is 8 -by default (see -.BI \-block " N" -switch below). -.TP -.B \-targa -Input file is Targa format. Targa files that contain an "identification" -field will not be automatically recognized by -.BR cjpeg ; -for such files you must specify -.B \-targa -to make -.B cjpeg -treat the input as Targa format. -For most Targa files, you won't need this switch. -.PP -The -.B \-quality -switch lets you trade off compressed file size against quality of the -reconstructed image: the higher the quality setting, the larger the JPEG file, -and the closer the output image will be to the original input. Normally you -want to use the lowest quality setting (smallest file) that decompresses into -something visually indistinguishable from the original image. For this -purpose the quality setting should be between 50 and 95; the default of 75 is -often about right. If you see defects at -.B \-quality -75, then go up 5 or 10 counts at a time until you are happy with the output -image. (The optimal setting will vary from one image to another.) -.PP -.B \-quality -100 will generate a quantization table of all 1's, minimizing loss in the -quantization step (but there is still information loss in subsampling, as well -as roundoff error). This setting is mainly of interest for experimental -purposes. Quality values above about 95 are -.B not -recommended for normal use; the compressed file size goes up dramatically for -hardly any gain in output image quality. -.PP -In the other direction, quality values below 50 will produce very small files -of low image quality. Settings around 5 to 10 might be useful in preparing an -index of a large image library, for example. Try -.B \-quality -2 (or so) for some amusing Cubist effects. (Note: quality -values below about 25 generate 2-byte quantization tables, which are -considered optional in the JPEG standard. -.B cjpeg -emits a warning message when you give such a quality value, because some -other JPEG programs may be unable to decode the resulting file. Use -.B \-baseline -if you need to ensure compatibility at low quality values.) -.PP -The -.B \-quality -option has been extended in IJG version 7 for support of separate quality -settings for luminance and chrominance (or in general, for every provided -quantization table slot). This feature is useful for high-quality -applications which cannot accept the damage of color data by coarse -subsampling settings. You can now easily reduce the color data amount more -smoothly with finer control without separate subsampling. The resulting file -is fully compliant with standard JPEG decoders. -Note that the -.B \-quality -ratings refer to the quantization table slots, and that the last value is -replicated if there are more q-table slots than parameters. The default -q-table slots are 0 for luminance and 1 for chrominance with default tables as -given in the JPEG standard. This is compatible with the old behaviour in case -that only one parameter is given, which is then used for both luminance and -chrominance (slots 0 and 1). More or custom quantization tables can be set -with -.B \-qtables -and assigned to components with -.B \-qslots -parameter (see the "wizard" switches below). -.B Caution: -You must explicitly add -.BI \-sample " 1x1" -for efficient separate color -quality selection, since the default value used by library is 2x2! -.PP -The -.B \-progressive -switch creates a "progressive JPEG" file. In this type of JPEG file, the data -is stored in multiple scans of increasing quality. If the file is being -transmitted over a slow communications link, the decoder can use the first -scan to display a low-quality image very quickly, and can then improve the -display with each subsequent scan. The final image is exactly equivalent to a -standard JPEG file of the same quality setting, and the total file size is -about the same --- often a little smaller. -.PP -Switches for advanced users: -.TP -.B \-arithmetic -Use arithmetic coding. -.B Caution: -arithmetic coded JPEG is not yet widely implemented, so many decoders will be -unable to view an arithmetic coded JPEG file at all. -.TP -.BI \-block " N" -Set DCT block size. All N from 1 to 16 are possible. -Default is 8 (baseline format). -Larger values produce higher compression, -smaller values produce higher quality -(exact DCT stage possible with 1 or 2; with the default quality of 75 and -default Luminance qtable the DCT+Quantization stage is lossless for N=1). -.B Caution: -An implementation of the JPEG SmartScale extension is required for this -feature. SmartScale enabled JPEG is not yet widely implemented, so many -decoders will be unable to view a SmartScale extended JPEG file at all. -.TP -.B \-dct int -Use integer DCT method (default). -.TP -.B \-dct fast -Use fast integer DCT (less accurate). -.TP -.B \-dct float -Use floating-point DCT method. -The float method is very slightly more accurate than the int method, but is -much slower unless your machine has very fast floating-point hardware. Also -note that results of the floating-point method may vary slightly across -machines, while the integer methods should give the same results everywhere. -The fast integer method is much less accurate than the other two. -.TP -.B \-nosmooth -Don't use high-quality downsampling. -.TP -.BI \-restart " N" -Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is -attached to the number. -.B \-restart 0 -(the default) means no restart markers. -.TP -.BI \-smooth " N" -Smooth the input image to eliminate dithering noise. N, ranging from 1 to -100, indicates the strength of smoothing. 0 (the default) means no smoothing. -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.PP -The -.B \-restart -option inserts extra markers that allow a JPEG decoder to resynchronize after -a transmission error. Without restart markers, any damage to a compressed -file will usually ruin the image from the point of the error to the end of the -image; with restart markers, the damage is usually confined to the portion of -the image up to the next restart marker. Of course, the restart markers -occupy extra space. We recommend -.B \-restart 1 -for images that will be transmitted across unreliable networks such as Usenet. -.PP -The -.B \-smooth -option filters the input to eliminate fine-scale noise. This is often useful -when converting dithered images to JPEG: a moderate smoothing factor of 10 to -50 gets rid of dithering patterns in the input file, resulting in a smaller -JPEG file and a better-looking image. Too large a smoothing factor will -visibly blur the image, however. -.PP -Switches for wizards: -.TP -.B \-baseline -Force baseline-compatible quantization tables to be generated. This clamps -quantization values to 8 bits even at low quality settings. (This switch is -poorly named, since it does not ensure that the output is actually baseline -JPEG. For example, you can use -.B \-baseline -and -.B \-progressive -together.) -.TP -.BI \-qtables " file" -Use the quantization tables given in the specified text file. -.TP -.BI \-qslots " N[,...]" -Select which quantization table to use for each color component. -.TP -.BI \-sample " HxV[,...]" -Set JPEG sampling factors for each color component. -.TP -.BI \-scans " file" -Use the scan script given in the specified text file. -.PP -The "wizard" switches are intended for experimentation with JPEG. If you -don't know what you are doing, \fBdon't use them\fR. These switches are -documented further in the file wizard.txt. -.SH EXAMPLES -.LP -This example compresses the PPM file foo.ppm with a quality factor of -60 and saves the output as foo.jpg: -.IP -.B cjpeg \-quality -.I 60 foo.ppm -.B > -.I foo.jpg -.SH HINTS -Color GIF files are not the ideal input for JPEG; JPEG is really intended for -compressing full-color (24-bit) images. In particular, don't try to convert -cartoons, line drawings, and other images that have only a few distinct -colors. GIF works great on these, JPEG does not. If you want to convert a -GIF to JPEG, you should experiment with -.BR cjpeg 's -.B \-quality -and -.B \-smooth -options to get a satisfactory conversion. -.B \-smooth 10 -or so is often helpful. -.PP -Avoid running an image through a series of JPEG compression/decompression -cycles. Image quality loss will accumulate; after ten or so cycles the image -may be noticeably worse than it was after one cycle. It's best to use a -lossless format while manipulating an image, then convert to JPEG format when -you are ready to file the image away. -.PP -The -.B \-optimize -option to -.B cjpeg -is worth using when you are making a "final" version for posting or archiving. -It's also a win when you are using low quality settings to make very small -JPEG files; the percentage improvement is often a lot more than it is on -larger files. (At present, -.B \-optimize -mode is always selected when generating progressive JPEG files.) -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR djpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -.BR ppm (5), -.BR pgm (5) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -GIF input files are no longer supported, to avoid the Unisys LZW patent. -(Conversion of GIF files to JPEG is usually a bad idea anyway.) -.PP -Not all variants of BMP and Targa file formats are supported. -.PP -The -.B \-targa -switch is not a bug, it's a feature. (It would be a bug if the Targa format -designers had not been clueless.) diff --git a/jpeg/cjpeg.c b/jpeg/cjpeg.c deleted file mode 100755 index 9a9a09a..0000000 --- a/jpeg/cjpeg.c +++ /dev/null @@ -1,643 +0,0 @@ -/* - * cjpeg.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG compressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * cjpeg [options] inputfile outputfile - * cjpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * cjpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This routine determines what format the input file is, - * and selects the appropriate input-reading module. - * - * To determine which family of input formats the file belongs to, - * we may look only at the first byte of the file, since C does not - * guarantee that more than one character can be pushed back with ungetc. - * Looking at additional bytes would require one of these approaches: - * 1) assume we can fseek() the input file (fails for piped input); - * 2) assume we can push back more than one character (works in - * some C implementations, but unportable); - * 3) provide our own buffering (breaks input readers that want to use - * stdio directly, such as the RLE library); - * or 4) don't put back the data, and modify the input_init methods to assume - * they start reading after the start of file (also breaks RLE library). - * #1 is attractive for MS-DOS but is untenable on Unix. - * - * The most portable solution for file types that can't be identified by their - * first byte is to make the user tell us what they are. This is also the - * only approach for "raw" file types that contain only arbitrary values. - * We presently apply this method for Targa files. Most of the time Targa - * files start with 0x00, so we recognize that case. Potentially, however, - * a Targa file could start with any byte value (byte 0 is the length of the - * seldom-used ID field), so we provide a switch to force Targa input mode. - */ - -static boolean is_targa; /* records user -targa switch */ - - -LOCAL(cjpeg_source_ptr) -select_file_type (j_compress_ptr cinfo, FILE * infile) -{ - int c; - - if (is_targa) { -#ifdef TARGA_SUPPORTED - return jinit_read_targa(cinfo); -#else - ERREXIT(cinfo, JERR_TGA_NOTCOMP); -#endif - } - - if ((c = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_INPUT_EMPTY); - if (ungetc(c, infile) == EOF) - ERREXIT(cinfo, JERR_UNGETC_FAILED); - - switch (c) { -#ifdef BMP_SUPPORTED - case 'B': - return jinit_read_bmp(cinfo); -#endif -#ifdef GIF_SUPPORTED - case 'G': - return jinit_read_gif(cinfo); -#endif -#ifdef PPM_SUPPORTED - case 'P': - return jinit_read_ppm(cinfo); -#endif -#ifdef RLE_SUPPORTED - case 'R': - return jinit_read_rle(cinfo); -#endif -#ifdef TARGA_SUPPORTED - case 0x00: - return jinit_read_targa(cinfo); -#endif - default: - ERREXIT(cinfo, JERR_UNKNOWN_FORMAT); - break; - } - - return NULL; /* suppress compiler warnings */ -} - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -quality N[,...] Compression quality (0..100; 5-95 is useful range)\n"); - fprintf(stderr, " -grayscale Create monochrome JPEG file\n"); - fprintf(stderr, " -rgb Create RGB JPEG file\n"); -#ifdef ENTROPY_OPT_SUPPORTED - fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); -#endif -#ifdef C_PROGRESSIVE_SUPPORTED - fprintf(stderr, " -progressive Create progressive JPEG file\n"); -#endif -#ifdef DCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale image by fraction M/N, eg, 1/2\n"); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Input file is Targa format (usually not needed)\n"); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef C_ARITH_CODING_SUPPORTED - fprintf(stderr, " -arithmetic Use arithmetic coding\n"); -#endif -#ifdef DCT_SCALING_SUPPORTED - fprintf(stderr, " -block N DCT block size (1..16; default is 8)\n"); -#endif -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality downsampling\n"); - fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); -#ifdef INPUT_SMOOTHING_SUPPORTED - fprintf(stderr, " -smooth N Smooth dithered input (N=1..100 is strength)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - fprintf(stderr, "Switches for wizards:\n"); - fprintf(stderr, " -baseline Force baseline quantization tables\n"); - fprintf(stderr, " -qtables file Use quantization tables given in file\n"); - fprintf(stderr, " -qslots N[,...] Set component quantization tables\n"); - fprintf(stderr, " -sample HxV[,...] Set component sampling factors\n"); -#ifdef C_MULTISCAN_FILES_SUPPORTED - fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); -#endif - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_compress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - boolean force_baseline; - boolean simple_progressive; - char * qualityarg = NULL; /* saves -quality parm if any */ - char * qtablefile = NULL; /* saves -qtables filename if any */ - char * qslotsarg = NULL; /* saves -qslots parm if any */ - char * samplearg = NULL; /* saves -sample parm if any */ - char * scansarg = NULL; /* saves -scans parm if any */ - - /* Set up default JPEG parameters. */ - - force_baseline = FALSE; /* by default, allow 16-bit quantizers */ - simple_progressive = FALSE; - is_targa = FALSE; - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "arithmetic", 1)) { - /* Use arithmetic coding. */ -#ifdef C_ARITH_CODING_SUPPORTED - cinfo->arith_code = TRUE; -#else - fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "baseline", 2)) { - /* Force baseline-compatible output (8-bit quantizer values). */ - force_baseline = TRUE; - - } else if (keymatch(arg, "block", 2)) { - /* Set DCT block size. */ -#if defined DCT_SCALING_SUPPORTED && JPEG_LIB_VERSION_MAJOR >= 8 && \ - (JPEG_LIB_VERSION_MAJOR > 8 || JPEG_LIB_VERSION_MINOR >= 3) - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - if (val < 1 || val > 16) - usage(); - cinfo->block_size = val; -#else - fprintf(stderr, "%s: sorry, block size setting not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "dct", 2)) { - /* Select DCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's CJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force a monochrome JPEG file to be generated. */ - jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); - - } else if (keymatch(arg, "rgb", 3)) { - /* Force an RGB JPEG file to be generated. */ - jpeg_set_colorspace(cinfo, JCS_RGB); - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy downsampling */ - cinfo->do_fancy_downsampling = FALSE; - - } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { - /* Enable entropy parm optimization. */ -#ifdef ENTROPY_OPT_SUPPORTED - cinfo->optimize_coding = TRUE; -#else - fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "progressive", 1)) { - /* Select simple progressive mode. */ -#ifdef C_PROGRESSIVE_SUPPORTED - simple_progressive = TRUE; - /* We must postpone execution until num_components is known. */ -#else - fprintf(stderr, "%s: sorry, progressive output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "quality", 1)) { - /* Quality ratings (quantization table scaling factors). */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qualityarg = argv[argn]; - - } else if (keymatch(arg, "qslots", 2)) { - /* Quantization table slot numbers. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qslotsarg = argv[argn]; - /* Must delay setting qslots until after we have processed any - * colorspace-determining switches, since jpeg_set_colorspace sets - * default quant table numbers. - */ - - } else if (keymatch(arg, "qtables", 2)) { - /* Quantization tables fetched from file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - qtablefile = argv[argn]; - /* We postpone actually reading the file in case -quality comes later. */ - - } else if (keymatch(arg, "restart", 1)) { - /* Restart interval in MCU rows (or in MCUs with 'b'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (lval < 0 || lval > 65535L) - usage(); - if (ch == 'b' || ch == 'B') { - cinfo->restart_interval = (unsigned int) lval; - cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ - } else { - cinfo->restart_in_rows = (int) lval; - /* restart_interval will be computed during startup */ - } - - } else if (keymatch(arg, "sample", 2)) { - /* Set sampling factors. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - samplearg = argv[argn]; - /* Must delay setting sample factors until after we have processed any - * colorspace-determining switches, since jpeg_set_colorspace sets - * default sampling factors. - */ - - } else if (keymatch(arg, "scale", 4)) { - /* Scale the image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) != 2) - usage(); - - } else if (keymatch(arg, "scans", 4)) { - /* Set scan script. */ -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - scansarg = argv[argn]; - /* We must postpone reading the file in case -progressive appears. */ -#else - fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "smooth", 2)) { - /* Set input smoothing factor. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - if (val < 0 || val > 100) - usage(); - cinfo->smoothing_factor = val; - - } else if (keymatch(arg, "targa", 1)) { - /* Input file is Targa format. */ - is_targa = TRUE; - - } else { - usage(); /* bogus switch */ - } - } - - /* Post-switch-scanning cleanup */ - - if (for_real) { - - /* Set quantization tables for selected quality. */ - /* Some or all may be overridden if -qtables is present. */ - if (qualityarg != NULL) /* process -quality if it was present */ - if (! set_quality_ratings(cinfo, qualityarg, force_baseline)) - usage(); - - if (qtablefile != NULL) /* process -qtables if it was present */ - if (! read_quant_tables(cinfo, qtablefile, force_baseline)) - usage(); - - if (qslotsarg != NULL) /* process -qslots if it was present */ - if (! set_quant_slots(cinfo, qslotsarg)) - usage(); - - if (samplearg != NULL) /* process -sample if it was present */ - if (! set_sample_factors(cinfo, samplearg)) - usage(); - -#ifdef C_PROGRESSIVE_SUPPORTED - if (simple_progressive) /* process -progressive; -scans can override */ - jpeg_simple_progression(cinfo); -#endif - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (scansarg != NULL) /* process -scans if it was present */ - if (! read_scan_script(cinfo, scansarg)) - usage(); -#endif - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - cjpeg_source_ptr src_mgr; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "cjpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG compression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_compress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Initialize JPEG parameters. - * Much of this may be overridden later. - * In particular, we don't yet know the input file's color space, - * but we need to provide some value for jpeg_set_defaults() to work. - */ - - cinfo.in_color_space = JCS_RGB; /* arbitrary guess */ - jpeg_set_defaults(&cinfo); - - /* Scan command line to find file names. - * It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Figure out the input file format, and set up to read it. */ - src_mgr = select_file_type(&cinfo, input_file); - src_mgr->input_file = input_file; - - /* Read the input file header to obtain file size & colorspace. */ - (*src_mgr->start_input) (&cinfo, src_mgr); - - /* Now that we know input colorspace, fix colorspace-dependent defaults */ - jpeg_default_colorspace(&cinfo); - - /* Adjust default compression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Specify data destination for compression */ - jpeg_stdio_dest(&cinfo, output_file); - - /* Start compressor */ - jpeg_start_compress(&cinfo, TRUE); - - /* Process data */ - while (cinfo.next_scanline < cinfo.image_height) { - num_scanlines = (*src_mgr->get_pixel_rows) (&cinfo, src_mgr); - (void) jpeg_write_scanlines(&cinfo, src_mgr->buffer, num_scanlines); - } - - /* Finish compression and release memory */ - (*src_mgr->finish_input) (&cinfo, src_mgr); - jpeg_finish_compress(&cinfo); - jpeg_destroy_compress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpeg/ckconfig.c b/jpeg/ckconfig.c deleted file mode 100755 index e658623..0000000 --- a/jpeg/ckconfig.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - * ckconfig.c - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - */ - -/* - * This program is intended to help you determine how to configure the JPEG - * software for installation on a particular system. The idea is to try to - * compile and execute this program. If your compiler fails to compile the - * program, make changes as indicated in the comments below. Once you can - * compile the program, run it, and it will produce a "jconfig.h" file for - * your system. - * - * As a general rule, each time you try to compile this program, - * pay attention only to the *first* error message you get from the compiler. - * Many C compilers will issue lots of spurious error messages once they - * have gotten confused. Go to the line indicated in the first error message, - * and read the comments preceding that line to see what to change. - * - * Almost all of the edits you may need to make to this program consist of - * changing a line that reads "#define SOME_SYMBOL" to "#undef SOME_SYMBOL", - * or vice versa. This is called defining or undefining that symbol. - */ - - -/* First we must see if your system has the include files we need. - * We start out with the assumption that your system has all the ANSI-standard - * include files. If you get any error trying to include one of these files, - * undefine the corresponding HAVE_xxx symbol. - */ - -#define HAVE_STDDEF_H /* replace 'define' by 'undef' if error here */ -#ifdef HAVE_STDDEF_H /* next line will be skipped if you undef... */ -#include -#endif - -#define HAVE_STDLIB_H /* same thing for stdlib.h */ -#ifdef HAVE_STDLIB_H -#include -#endif - -#include /* If you ain't got this, you ain't got C. */ - -/* We have to see if your string functions are defined by - * strings.h (old BSD convention) or string.h (everybody else). - * We try the non-BSD convention first; define NEED_BSD_STRINGS - * if the compiler says it can't find string.h. - */ - -#undef NEED_BSD_STRINGS - -#ifdef NEED_BSD_STRINGS -#include -#else -#include -#endif - -/* On some systems (especially older Unix machines), type size_t is - * defined only in the include file . If you get a failure - * on the size_t test below, try defining NEED_SYS_TYPES_H. - */ - -#undef NEED_SYS_TYPES_H /* start by assuming we don't need it */ -#ifdef NEED_SYS_TYPES_H -#include -#endif - - -/* Usually type size_t is defined in one of the include files we've included - * above. If not, you'll get an error on the "typedef size_t my_size_t;" line. - * In that case, first try defining NEED_SYS_TYPES_H just above. - * If that doesn't work, you'll have to search through your system library - * to figure out which include file defines "size_t". Look for a line that - * says "typedef something-or-other size_t;". Then, change the line below - * that says "#include " to instead include the file - * you found size_t in, and define NEED_SPECIAL_INCLUDE. If you can't find - * type size_t anywhere, try replacing "#include " with - * "typedef unsigned int size_t;". - */ - -#undef NEED_SPECIAL_INCLUDE /* assume we DON'T need it, for starters */ - -#ifdef NEED_SPECIAL_INCLUDE -#include -#endif - -typedef size_t my_size_t; /* The payoff: do we have size_t now? */ - - -/* The next question is whether your compiler supports ANSI-style function - * prototypes. You need to know this in order to choose between using - * makefile.ansi and using makefile.unix. - * The #define line below is set to assume you have ANSI function prototypes. - * If you get an error in this group of lines, undefine HAVE_PROTOTYPES. - */ - -#define HAVE_PROTOTYPES - -#ifdef HAVE_PROTOTYPES -int testfunction (int arg1, int * arg2); /* check prototypes */ - -struct methods_struct { /* check method-pointer declarations */ - int (*error_exit) (char *msgtext); - int (*trace_message) (char *msgtext); - int (*another_method) (void); -}; - -int testfunction (int arg1, int * arg2) /* check definitions */ -{ - return arg2[arg1]; -} - -int test2function (void) /* check void arg list */ -{ - return 0; -} -#endif - - -/* Now we want to find out if your compiler knows what "unsigned char" means. - * If you get an error on the "unsigned char un_char;" line, - * then undefine HAVE_UNSIGNED_CHAR. - */ - -#define HAVE_UNSIGNED_CHAR - -#ifdef HAVE_UNSIGNED_CHAR -unsigned char un_char; -#endif - - -/* Now we want to find out if your compiler knows what "unsigned short" means. - * If you get an error on the "unsigned short un_short;" line, - * then undefine HAVE_UNSIGNED_SHORT. - */ - -#define HAVE_UNSIGNED_SHORT - -#ifdef HAVE_UNSIGNED_SHORT -unsigned short un_short; -#endif - - -/* Now we want to find out if your compiler understands type "void". - * If you get an error anywhere in here, undefine HAVE_VOID. - */ - -#define HAVE_VOID - -#ifdef HAVE_VOID -/* Caution: a C++ compiler will insist on complete prototypes */ -typedef void * void_ptr; /* check void * */ -#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ -typedef void (*void_func) (int a, int b); -#else -typedef void (*void_func) (); -#endif - -#ifdef HAVE_PROTOTYPES /* check void function result */ -void test3function (void_ptr arg1, void_func arg2) -#else -void test3function (arg1, arg2) - void_ptr arg1; - void_func arg2; -#endif -{ - char * locptr = (char *) arg1; /* check casting to and from void * */ - arg1 = (void *) locptr; - (*arg2) (1, 2); /* check call of fcn returning void */ -} -#endif - - -/* Now we want to find out if your compiler knows what "const" means. - * If you get an error here, undefine HAVE_CONST. - */ - -#define HAVE_CONST - -#ifdef HAVE_CONST -static const int carray[3] = {1, 2, 3}; - -#ifdef HAVE_PROTOTYPES -int test4function (const int arg1) -#else -int test4function (arg1) - const int arg1; -#endif -{ - return carray[arg1]; -} -#endif - - -/* If you get an error or warning about this structure definition, - * define INCOMPLETE_TYPES_BROKEN. - */ - -#undef INCOMPLETE_TYPES_BROKEN - -#ifndef INCOMPLETE_TYPES_BROKEN -typedef struct undefined_structure * undef_struct_ptr; -#endif - - -/* If you get an error about duplicate names, - * define NEED_SHORT_EXTERNAL_NAMES. - */ - -#undef NEED_SHORT_EXTERNAL_NAMES - -#ifndef NEED_SHORT_EXTERNAL_NAMES - -int possibly_duplicate_function () -{ - return 0; -} - -int possibly_dupli_function () -{ - return 1; -} - -#endif - - - -/************************************************************************ - * OK, that's it. You should not have to change anything beyond this - * point in order to compile and execute this program. (You might get - * some warnings, but you can ignore them.) - * When you run the program, it will make a couple more tests that it - * can do automatically, and then it will create jconfig.h and print out - * any additional suggestions it has. - ************************************************************************ - */ - - -#ifdef HAVE_PROTOTYPES -int is_char_signed (int arg) -#else -int is_char_signed (arg) - int arg; -#endif -{ - if (arg == 189) { /* expected result for unsigned char */ - return 0; /* type char is unsigned */ - } - else if (arg != -67) { /* expected result for signed char */ - printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - } - return 1; /* assume char is signed otherwise */ -} - - -#ifdef HAVE_PROTOTYPES -int is_shifting_signed (long arg) -#else -int is_shifting_signed (arg) - long arg; -#endif -/* See whether right-shift on a long is signed or not. */ -{ - long res = arg >> 4; - - if (res == -0x7F7E80CL) { /* expected result for signed shift */ - return 1; /* right shift is signed */ - } - /* see if unsigned-shift hack will fix it. */ - /* we can't just test exact value since it depends on width of long... */ - res |= (~0L) << (32-4); - if (res == -0x7F7E80CL) { /* expected result now? */ - return 0; /* right shift is unsigned */ - } - printf("Right shift isn't acting as I expect it to.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - return 0; /* try it with unsigned anyway */ -} - - -#ifdef HAVE_PROTOTYPES -int main (int argc, char ** argv) -#else -int main (argc, argv) - int argc; - char ** argv; -#endif -{ - char signed_char_check = (char) (-67); - FILE *outfile; - - /* Attempt to write jconfig.h */ - if ((outfile = fopen("jconfig.h", "w")) == NULL) { - printf("Failed to write jconfig.h\n"); - return 1; - } - - /* Write out all the info */ - fprintf(outfile, "/* jconfig.h --- generated by ckconfig.c */\n"); - fprintf(outfile, "/* see jconfig.txt for explanations */\n\n"); -#ifdef HAVE_PROTOTYPES - fprintf(outfile, "#define HAVE_PROTOTYPES\n"); -#else - fprintf(outfile, "#undef HAVE_PROTOTYPES\n"); -#endif -#ifdef HAVE_UNSIGNED_CHAR - fprintf(outfile, "#define HAVE_UNSIGNED_CHAR\n"); -#else - fprintf(outfile, "#undef HAVE_UNSIGNED_CHAR\n"); -#endif -#ifdef HAVE_UNSIGNED_SHORT - fprintf(outfile, "#define HAVE_UNSIGNED_SHORT\n"); -#else - fprintf(outfile, "#undef HAVE_UNSIGNED_SHORT\n"); -#endif -#ifdef HAVE_VOID - fprintf(outfile, "/* #define void char */\n"); -#else - fprintf(outfile, "#define void char\n"); -#endif -#ifdef HAVE_CONST - fprintf(outfile, "/* #define const */\n"); -#else - fprintf(outfile, "#define const\n"); -#endif - if (is_char_signed((int) signed_char_check)) - fprintf(outfile, "#undef CHAR_IS_UNSIGNED\n"); - else - fprintf(outfile, "#define CHAR_IS_UNSIGNED\n"); -#ifdef HAVE_STDDEF_H - fprintf(outfile, "#define HAVE_STDDEF_H\n"); -#else - fprintf(outfile, "#undef HAVE_STDDEF_H\n"); -#endif -#ifdef HAVE_STDLIB_H - fprintf(outfile, "#define HAVE_STDLIB_H\n"); -#else - fprintf(outfile, "#undef HAVE_STDLIB_H\n"); -#endif -#ifdef NEED_BSD_STRINGS - fprintf(outfile, "#define NEED_BSD_STRINGS\n"); -#else - fprintf(outfile, "#undef NEED_BSD_STRINGS\n"); -#endif -#ifdef NEED_SYS_TYPES_H - fprintf(outfile, "#define NEED_SYS_TYPES_H\n"); -#else - fprintf(outfile, "#undef NEED_SYS_TYPES_H\n"); -#endif - fprintf(outfile, "#undef NEED_FAR_POINTERS\n"); -#ifdef NEED_SHORT_EXTERNAL_NAMES - fprintf(outfile, "#define NEED_SHORT_EXTERNAL_NAMES\n"); -#else - fprintf(outfile, "#undef NEED_SHORT_EXTERNAL_NAMES\n"); -#endif -#ifdef INCOMPLETE_TYPES_BROKEN - fprintf(outfile, "#define INCOMPLETE_TYPES_BROKEN\n"); -#else - fprintf(outfile, "#undef INCOMPLETE_TYPES_BROKEN\n"); -#endif - fprintf(outfile, "\n#ifdef JPEG_INTERNALS\n\n"); - if (is_shifting_signed(-0x7F7E80B1L)) - fprintf(outfile, "#undef RIGHT_SHIFT_IS_UNSIGNED\n"); - else - fprintf(outfile, "#define RIGHT_SHIFT_IS_UNSIGNED\n"); - fprintf(outfile, "\n#endif /* JPEG_INTERNALS */\n"); - fprintf(outfile, "\n#ifdef JPEG_CJPEG_DJPEG\n\n"); - fprintf(outfile, "#define BMP_SUPPORTED /* BMP image file format */\n"); - fprintf(outfile, "#define GIF_SUPPORTED /* GIF image file format */\n"); - fprintf(outfile, "#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */\n"); - fprintf(outfile, "#undef RLE_SUPPORTED /* Utah RLE image file format */\n"); - fprintf(outfile, "#define TARGA_SUPPORTED /* Targa image file format */\n\n"); - fprintf(outfile, "#undef TWO_FILE_COMMANDLINE /* You may need this on non-Unix systems */\n"); - fprintf(outfile, "#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */\n"); - fprintf(outfile, "#undef DONT_USE_B_MODE\n"); - fprintf(outfile, "/* #define PROGRESS_REPORT */ /* optional */\n"); - fprintf(outfile, "\n#endif /* JPEG_CJPEG_DJPEG */\n"); - - /* Close the jconfig.h file */ - fclose(outfile); - - /* User report */ - printf("Configuration check for Independent JPEG Group's software done.\n"); - printf("\nI have written the jconfig.h file for you.\n\n"); -#ifdef HAVE_PROTOTYPES - printf("You should use makefile.ansi as the starting point for your Makefile.\n"); -#else - printf("You should use makefile.unix as the starting point for your Makefile.\n"); -#endif - -#ifdef NEED_SPECIAL_INCLUDE - printf("\nYou'll need to change jconfig.h to include the system include file\n"); - printf("that you found type size_t in, or add a direct definition of type\n"); - printf("size_t if that's what you used. Just add it to the end.\n"); -#endif - - return 0; -} diff --git a/jpeg/coderules.txt b/jpeg/coderules.txt deleted file mode 100755 index 357929f..0000000 --- a/jpeg/coderules.txt +++ /dev/null @@ -1,118 +0,0 @@ -IJG JPEG LIBRARY: CODING RULES - -Copyright (C) 1991-1996, Thomas G. Lane. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -Since numerous people will be contributing code and bug fixes, it's important -to establish a common coding style. The goal of using similar coding styles -is much more important than the details of just what that style is. - -In general we follow the recommendations of "Recommended C Style and Coding -Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and -Brader). This document is available in the IJG FTP archive (see -jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl). - -Block comments should be laid out thusly: - -/* - * Block comments in this style. - */ - -We indent statements in K&R style, e.g., - if (test) { - then-part; - } else { - else-part; - } -with two spaces per indentation level. (This indentation convention is -handled automatically by GNU Emacs and many other text editors.) - -Multi-word names should be written in lower case with underscores, e.g., -multi_word_name (not multiWordName). Preprocessor symbols and enum constants -are similar but upper case (MULTI_WORD_NAME). Names should be unique within -the first fifteen characters. (On some older systems, global names must be -unique within six characters. We accommodate this without cluttering the -source code by using macros to substitute shorter names.) - -We use function prototypes everywhere; we rely on automatic source code -transformation to feed prototype-less C compilers. Transformation is done -by the simple and portable tool 'ansi2knr.c' (courtesy of Ghostscript). -ansi2knr is not very bright, so it imposes a format requirement on function -declarations: the function name MUST BEGIN IN COLUMN 1. Thus all functions -should be written in the following style: - -LOCAL(int *) -function_name (int a, char *b) -{ - code... -} - -Note that each function definition must begin with GLOBAL(type), LOCAL(type), -or METHODDEF(type). These macros expand to "static type" or just "type" as -appropriate. They provide a readable indication of the routine's usage and -can readily be changed for special needs. (For instance, special linkage -keywords can be inserted for use in Windows DLLs.) - -ansi2knr does not transform method declarations (function pointers in -structs). We handle these with a macro JMETHOD, defined as - #ifdef HAVE_PROTOTYPES - #define JMETHOD(type,methodname,arglist) type (*methodname) arglist - #else - #define JMETHOD(type,methodname,arglist) type (*methodname) () - #endif -which is used like this: - struct function_pointers { - JMETHOD(void, init_entropy_encoder, (int somearg, jparms *jp)); - JMETHOD(void, term_entropy_encoder, (void)); - }; -Note the set of parentheses surrounding the parameter list. - -A similar solution is used for forward and external function declarations -(see the EXTERN and JPP macros). - -If the code is to work on non-ANSI compilers, we cannot rely on a prototype -declaration to coerce actual parameters into the right types. Therefore, use -explicit casts on actual parameters whenever the actual parameter type is not -identical to the formal parameter. Beware of implicit conversions to "int". - -It seems there are some non-ANSI compilers in which the sizeof() operator -is defined to return int, yet size_t is defined as long. Needless to say, -this is brain-damaged. Always use the SIZEOF() macro in place of sizeof(), -so that the result is guaranteed to be of type size_t. - - -The JPEG library is intended to be used within larger programs. Furthermore, -we want it to be reentrant so that it can be used by applications that process -multiple images concurrently. The following rules support these requirements: - -1. Avoid direct use of file I/O, "malloc", error report printouts, etc; -pass these through the common routines provided. - -2. Minimize global namespace pollution. Functions should be declared static -wherever possible. (Note that our method-based calling conventions help this -a lot: in many modules only the initialization function will ever need to be -called directly, so only that function need be externally visible.) All -global function names should begin with "jpeg_", and should have an -abbreviated name (unique in the first six characters) substituted by macro -when NEED_SHORT_EXTERNAL_NAMES is set. - -3. Don't use global variables; anything that must be used in another module -should be in the common data structures. - -4. Don't use static variables except for read-only constant tables. Variables -that should be private to a module can be placed into private structures (see -the system architecture document, structure.txt). - -5. Source file names should begin with "j" for files that are part of the -library proper; source files that are not part of the library, such as cjpeg.c -and djpeg.c, do not begin with "j". Keep source file names to eight -characters (plus ".c" or ".h", etc) to make life easy for MS-DOSers. Keep -compression and decompression code in separate source files --- some -applications may want only one half of the library. - -Note: these rules (particularly #4) are not followed religiously in the -modules that are used in cjpeg/djpeg but are not part of the JPEG library -proper. Those modules are not really intended to be used in other -applications. diff --git a/jpeg/config.guess b/jpeg/config.guess deleted file mode 100755 index 8152efd..0000000 --- a/jpeg/config.guess +++ /dev/null @@ -1,1522 +0,0 @@ -#! /bin/sh -# Attempt to guess a canonical system name. -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, -# 2011 Free Software Foundation, Inc. - -timestamp='2011-11-11' - -# This file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA -# 02110-1301, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - - -# Originally written by Per Bothner. Please send patches (context -# diff format) to and include a ChangeLog -# entry. -# -# This script attempts to guess a canonical system name similar to -# config.sub. If it succeeds, it prints the system name on stdout, and -# exits with 0. Otherwise, it exits with 1. -# -# You can get the latest version of this script from: -# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD - -me=`echo "$0" | sed -e 's,.*/,,'` - -usage="\ -Usage: $0 [OPTION] - -Output the configuration name of the system \`$me' is run on. - -Operation modes: - -h, --help print this help, then exit - -t, --time-stamp print date of last modification, then exit - -v, --version print version number, then exit - -Report bugs and patches to ." - -version="\ -GNU config.guess ($timestamp) - -Originally written by Per Bothner. -Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, -2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free -Software Foundation, Inc. - -This is free software; see the source for copying conditions. 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then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit ;; - *:AIX:*:[4567]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` - if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit ;; - ibmrt:4.4BSD:*|romp-ibm:BSD:*) - echo romp-ibm-bsd4.4 - exit ;; - ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and - echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to - exit ;; # report: romp-ibm BSD 4.3 - *:BOSX:*:*) - echo rs6000-bull-bosx - exit ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit ;; - 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/[678][0-9][0-9]) - if [ -x /usr/bin/getconf ]; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; - '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac - fi - if [ "${HP_ARCH}" = "" ]; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - - #define _HPUX_SOURCE - #include - #include - - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); - - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - eval $set_cc_for_build - - # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating - # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler - # generating 64-bit code. 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CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - echo unknown-hitachi-hiuxwe2 - exit ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - *:UNICOS/mp:*:*) - echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:FreeBSD:*:*) - UNAME_PROCESSOR=`/usr/bin/uname -p` - case ${UNAME_PROCESSOR} in - amd64) - echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - *) - echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - esac - exit ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit ;; - *:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit ;; - i*:MSYS*:*) - echo ${UNAME_MACHINE}-pc-msys - exit ;; - i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 - exit ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit ;; - *:Interix*:*) - case ${UNAME_MACHINE} in - x86) - echo i586-pc-interix${UNAME_RELEASE} - exit ;; - authenticamd | genuineintel | EM64T) - echo x86_64-unknown-interix${UNAME_RELEASE} - exit ;; - IA64) - echo ia64-unknown-interix${UNAME_RELEASE} - exit ;; - esac ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit ;; - 8664:Windows_NT:*) - echo x86_64-pc-mks - exit ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we - # UNAME_MACHINE based on the output of uname instead of i386? - echo i586-pc-interix - exit ;; - i*:UWIN*:*) - echo ${UNAME_MACHINE}-pc-uwin - exit ;; - amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) - echo x86_64-unknown-cygwin - exit ;; - p*:CYGWIN*:*) - echo powerpcle-unknown-cygwin - exit ;; - prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - *:GNU:*:*) - # the GNU system - echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit ;; - *:GNU/*:*:*) - # other systems with GNU libc and userland - echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu - exit ;; - i*86:Minix:*:*) - echo ${UNAME_MACHINE}-pc-minix - exit ;; - alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in - EV5) UNAME_MACHINE=alphaev5 ;; - EV56) UNAME_MACHINE=alphaev56 ;; - PCA56) UNAME_MACHINE=alphapca56 ;; - PCA57) UNAME_MACHINE=alphapca56 ;; - EV6) UNAME_MACHINE=alphaev6 ;; - EV67) UNAME_MACHINE=alphaev67 ;; - EV68*) UNAME_MACHINE=alphaev68 ;; - esac - objdump --private-headers /bin/sh | grep -q ld.so.1 - if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi - echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} - exit ;; - arm*:Linux:*:*) - eval $set_cc_for_build - if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_EABI__ - then - echo ${UNAME_MACHINE}-unknown-linux-gnu - else - if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_PCS_VFP - then - echo ${UNAME_MACHINE}-unknown-linux-gnueabi - else - echo ${UNAME_MACHINE}-unknown-linux-gnueabihf - fi - fi - exit ;; - avr32*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - cris:Linux:*:*) - echo cris-axis-linux-gnu - exit ;; - crisv32:Linux:*:*) - echo crisv32-axis-linux-gnu - exit ;; - frv:Linux:*:*) - echo frv-unknown-linux-gnu - exit ;; - hexagon:Linux:*:*) - echo hexagon-unknown-linux-gnu - exit ;; - i*86:Linux:*:*) - LIBC=gnu - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #ifdef __dietlibc__ - LIBC=dietlibc - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` - echo "${UNAME_MACHINE}-pc-linux-${LIBC}" - exit ;; - ia64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - m32r*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - m68*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - mips:Linux:*:* | mips64:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef ${UNAME_MACHINE} - #undef ${UNAME_MACHINE}el - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=${UNAME_MACHINE}el - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=${UNAME_MACHINE} - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` - test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } - ;; - or32:Linux:*:*) - echo or32-unknown-linux-gnu - exit ;; - padre:Linux:*:*) - echo sparc-unknown-linux-gnu - exit ;; - parisc64:Linux:*:* | hppa64:Linux:*:*) - echo hppa64-unknown-linux-gnu - exit ;; - parisc:Linux:*:* | hppa:Linux:*:*) - # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in - PA7*) echo hppa1.1-unknown-linux-gnu ;; - PA8*) echo hppa2.0-unknown-linux-gnu ;; - *) echo hppa-unknown-linux-gnu ;; - esac - exit ;; - ppc64:Linux:*:*) - echo powerpc64-unknown-linux-gnu - exit ;; - ppc:Linux:*:*) - echo powerpc-unknown-linux-gnu - exit ;; - s390:Linux:*:* | s390x:Linux:*:*) - echo ${UNAME_MACHINE}-ibm-linux - exit ;; - sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - sh*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - sparc:Linux:*:* | sparc64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - tile*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - vax:Linux:*:*) - echo ${UNAME_MACHINE}-dec-linux-gnu - exit ;; - x86_64:Linux:*:*) - echo x86_64-unknown-linux-gnu - exit ;; - xtensa*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit ;; - i*86:DYNIX/ptx:4*:*) - # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. - # earlier versions are messed up and put the nodename in both - # sysname and nodename. - echo i386-sequent-sysv4 - exit ;; - i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, - # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. - echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} - exit ;; - i*86:OS/2:*:*) - # If we were able to find `uname', then EMX Unix compatibility - # is probably installed. - echo ${UNAME_MACHINE}-pc-os2-emx - exit ;; - i*86:XTS-300:*:STOP) - echo ${UNAME_MACHINE}-unknown-stop - exit ;; - i*86:atheos:*:*) - echo ${UNAME_MACHINE}-unknown-atheos - exit ;; - i*86:syllable:*:*) - echo ${UNAME_MACHINE}-pc-syllable - exit ;; - i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) - echo i386-unknown-lynxos${UNAME_RELEASE} - exit ;; - i*86:*DOS:*:*) - echo ${UNAME_MACHINE}-pc-msdosdjgpp - exit ;; - i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) - UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} - else - echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} - fi - exit ;; - i*86:*:5:[678]*) - # UnixWare 7.x, OpenUNIX and OpenServer 6. - case `/bin/uname -X | grep "^Machine"` in - *486*) UNAME_MACHINE=i486 ;; - *Pentium) UNAME_MACHINE=i586 ;; - *Pent*|*Celeron) UNAME_MACHINE=i686 ;; - esac - echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} - exit ;; - i*86:*:3.2:*) - if test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` - (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 - (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ - && UNAME_MACHINE=i586 - (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ - && UNAME_MACHINE=i686 - (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ - && UNAME_MACHINE=i686 - echo ${UNAME_MACHINE}-pc-sco$UNAME_REL - else - echo ${UNAME_MACHINE}-pc-sysv32 - fi - exit ;; 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exit; } ;; - 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) - OS_REL='' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; - 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4; exit; } ;; - NCR*:*:4.2:* | MPRAS*:*:4.2:*) - OS_REL='.3' - test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; exit; } - /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ - && { echo i586-ncr-sysv4.3${OS_REL}; 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-esac - -#echo '(No uname command or uname output not recognized.)' 1>&2 -#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 - -eval $set_cc_for_build -cat >$dummy.c < -# include -#endif -main () -{ -#if defined (sony) -#if defined (MIPSEB) - /* BFD wants "bsd" instead of "newsos". 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We also -### recognize some manufacturers as not being operating systems, so we -### can provide default operating systems below. -case $os in - -sun*os*) - # Prevent following clause from handling this invalid input. - ;; - -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ - -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ - -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ - -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ - -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ - -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ - -apple | -axis | -knuth | -cray | -microblaze) - os= - basic_machine=$1 - ;; - -bluegene*) - os=-cnk - ;; - -sim | -cisco | -oki | -wec | -winbond) - os= - basic_machine=$1 - ;; - -scout) - ;; - -wrs) - os=-vxworks - basic_machine=$1 - ;; - -chorusos*) - os=-chorusos - basic_machine=$1 - ;; - -chorusrdb) - os=-chorusrdb - basic_machine=$1 - ;; - -hiux*) - os=-hiuxwe2 - ;; 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- -windowsnt*) - os=`echo $os | sed -e 's/windowsnt/winnt/'` - ;; - -psos*) - os=-psos - ;; - -mint | -mint[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; -esac - -# Decode aliases for certain CPU-COMPANY combinations. -case $basic_machine in - # Recognize the basic CPU types without company name. - # Some are omitted here because they have special meanings below. - 1750a | 580 \ - | a29k \ - | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ - | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ - | am33_2.0 \ - | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ - | be32 | be64 \ - | bfin \ - | c4x | clipper \ - | d10v | d30v | dlx | dsp16xx \ - | epiphany \ - | fido | fr30 | frv \ - | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ - | hexagon \ - | i370 | i860 | i960 | ia64 \ - | ip2k | iq2000 \ - | le32 | le64 \ - | lm32 \ - | m32c | m32r | m32rle | m68000 | m68k | m88k \ - | maxq | mb | microblaze | mcore | mep | metag \ - | mips | mipsbe | mipseb | mipsel | mipsle \ - | mips16 \ - | mips64 | mips64el \ - | mips64octeon | mips64octeonel \ - | mips64orion | mips64orionel \ - | mips64r5900 | mips64r5900el \ - | mips64vr | mips64vrel \ - | mips64vr4100 | mips64vr4100el \ - | mips64vr4300 | mips64vr4300el \ - | mips64vr5000 | mips64vr5000el \ - | mips64vr5900 | mips64vr5900el \ - | mipsisa32 | mipsisa32el \ - | mipsisa32r2 | mipsisa32r2el \ - | mipsisa64 | mipsisa64el \ - | mipsisa64r2 | mipsisa64r2el \ - | mipsisa64sb1 | mipsisa64sb1el \ - | mipsisa64sr71k | mipsisa64sr71kel \ - | mipstx39 | mipstx39el \ - | mn10200 | mn10300 \ - | moxie \ - | mt \ - | msp430 \ - | nds32 | nds32le | nds32be \ - | nios | nios2 \ - | ns16k | ns32k \ - | open8 \ - | or32 \ - | pdp10 | pdp11 | pj | pjl \ - | powerpc | powerpc64 | powerpc64le | powerpcle \ - | pyramid \ - | rl78 | rx \ - | score \ - | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ - | sh64 | sh64le \ - | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ - | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ - | spu \ - | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ - | ubicom32 \ - | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ - | we32k \ - | x86 | xc16x | xstormy16 | xtensa \ - | z8k | z80) - basic_machine=$basic_machine-unknown - ;; - c54x) - basic_machine=tic54x-unknown - ;; - c55x) - basic_machine=tic55x-unknown - ;; - c6x) - basic_machine=tic6x-unknown - ;; - m6811 | m68hc11 | m6812 | m68hc12 | picochip) - # Motorola 68HC11/12. - basic_machine=$basic_machine-unknown - os=-none - ;; - m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) - ;; - ms1) - basic_machine=mt-unknown - ;; - - strongarm | thumb | xscale) - basic_machine=arm-unknown - ;; - - xscaleeb) - basic_machine=armeb-unknown - ;; - - xscaleel) - basic_machine=armel-unknown - ;; - - # We use `pc' rather than `unknown' - # because (1) that's what they normally are, and - # (2) the word "unknown" tends to confuse beginning users. - i*86 | x86_64) - basic_machine=$basic_machine-pc - ;; - # Object if more than one company name word. - *-*-*) - echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 - exit 1 - ;; - # Recognize the basic CPU types with company name. - 580-* \ - | a29k-* \ - | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ - | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ - | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ - | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ - | avr-* | avr32-* \ - | be32-* | be64-* \ - | bfin-* | bs2000-* \ - | c[123]* | c30-* | [cjt]90-* | c4x-* \ - | clipper-* | craynv-* | cydra-* \ - | d10v-* | d30v-* | dlx-* \ - | elxsi-* \ - | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ - | h8300-* | h8500-* \ - | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ - | hexagon-* \ - | i*86-* | i860-* | i960-* | ia64-* \ - | ip2k-* | iq2000-* \ - | le32-* | le64-* \ - | lm32-* \ - | m32c-* | m32r-* | m32rle-* \ - | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ - | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ - | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ - | mips16-* \ - | mips64-* | mips64el-* \ - | mips64octeon-* | mips64octeonel-* \ - | mips64orion-* | mips64orionel-* \ - | mips64r5900-* | mips64r5900el-* \ - | mips64vr-* | mips64vrel-* \ - | mips64vr4100-* | mips64vr4100el-* \ - | mips64vr4300-* | mips64vr4300el-* \ - | mips64vr5000-* | mips64vr5000el-* \ - | mips64vr5900-* | mips64vr5900el-* \ - | mipsisa32-* | mipsisa32el-* \ - | mipsisa32r2-* | mipsisa32r2el-* \ - | mipsisa64-* | mipsisa64el-* \ - | mipsisa64r2-* | mipsisa64r2el-* \ - | mipsisa64sb1-* | mipsisa64sb1el-* \ - | mipsisa64sr71k-* | mipsisa64sr71kel-* \ - | mipstx39-* | mipstx39el-* \ - | mmix-* \ - | mt-* \ - | msp430-* \ - | nds32-* | nds32le-* | nds32be-* \ - | nios-* | nios2-* \ - | none-* | np1-* | ns16k-* | ns32k-* \ - | open8-* \ - | orion-* \ - | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ - | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ - | pyramid-* \ - | rl78-* | romp-* | rs6000-* | rx-* \ - | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ - | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ - | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ - | sparclite-* \ - | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ - | tahoe-* \ - | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ - | tile*-* \ - | tron-* \ - | ubicom32-* \ - | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ - | vax-* \ - | we32k-* \ - | x86-* | x86_64-* | xc16x-* | xps100-* \ - | xstormy16-* | xtensa*-* \ - | ymp-* \ - | z8k-* | z80-*) - ;; - # Recognize the basic CPU types without company name, with glob match. - xtensa*) - basic_machine=$basic_machine-unknown - ;; - # Recognize the various machine names and aliases which stand - # for a CPU type and a company and sometimes even an OS. - 386bsd) - basic_machine=i386-unknown - os=-bsd - ;; - 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) - basic_machine=m68000-att - ;; - 3b*) - basic_machine=we32k-att - ;; - a29khif) - basic_machine=a29k-amd - os=-udi - ;; - abacus) - basic_machine=abacus-unknown - ;; - adobe68k) - basic_machine=m68010-adobe - os=-scout - ;; - alliant | fx80) - basic_machine=fx80-alliant - ;; - altos | altos3068) - basic_machine=m68k-altos - ;; - am29k) - basic_machine=a29k-none - os=-bsd - ;; - amd64) - basic_machine=x86_64-pc - ;; - amd64-*) - basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - amdahl) - basic_machine=580-amdahl - os=-sysv - ;; - amiga | amiga-*) - basic_machine=m68k-unknown - ;; - amigaos | amigados) - basic_machine=m68k-unknown - os=-amigaos - ;; - amigaunix | amix) - basic_machine=m68k-unknown - os=-sysv4 - ;; - apollo68) - basic_machine=m68k-apollo - os=-sysv - ;; - apollo68bsd) - basic_machine=m68k-apollo - os=-bsd - ;; - aros) - basic_machine=i386-pc - os=-aros - ;; - aux) - basic_machine=m68k-apple - os=-aux - ;; - balance) - basic_machine=ns32k-sequent - os=-dynix - ;; - blackfin) - basic_machine=bfin-unknown - os=-linux - ;; - blackfin-*) - basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - bluegene*) - basic_machine=powerpc-ibm - os=-cnk - ;; - c54x-*) - basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c55x-*) - basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c6x-*) - basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c90) - basic_machine=c90-cray - os=-unicos - ;; - cegcc) - basic_machine=arm-unknown - os=-cegcc - ;; - convex-c1) - basic_machine=c1-convex - os=-bsd - ;; - convex-c2) - basic_machine=c2-convex - os=-bsd - ;; - convex-c32) - basic_machine=c32-convex - os=-bsd - ;; - convex-c34) - basic_machine=c34-convex - os=-bsd - ;; - convex-c38) - basic_machine=c38-convex - os=-bsd - ;; - cray | j90) - basic_machine=j90-cray - os=-unicos - ;; - craynv) - basic_machine=craynv-cray - os=-unicosmp - ;; - cr16 | cr16-*) - basic_machine=cr16-unknown - os=-elf - ;; - crds | unos) - basic_machine=m68k-crds - ;; - crisv32 | crisv32-* | etraxfs*) - basic_machine=crisv32-axis - ;; - cris | cris-* | etrax*) - basic_machine=cris-axis - ;; - crx) - basic_machine=crx-unknown - os=-elf - ;; - da30 | da30-*) - basic_machine=m68k-da30 - ;; - decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) - basic_machine=mips-dec - ;; - decsystem10* | dec10*) - basic_machine=pdp10-dec - os=-tops10 - ;; - decsystem20* | dec20*) - basic_machine=pdp10-dec - os=-tops20 - ;; - delta | 3300 | motorola-3300 | motorola-delta \ - | 3300-motorola | delta-motorola) - basic_machine=m68k-motorola - ;; - delta88) - basic_machine=m88k-motorola - os=-sysv3 - ;; - dicos) - basic_machine=i686-pc - os=-dicos - ;; - djgpp) - basic_machine=i586-pc - os=-msdosdjgpp - ;; - dpx20 | dpx20-*) - basic_machine=rs6000-bull - os=-bosx - ;; - dpx2* | dpx2*-bull) - basic_machine=m68k-bull - os=-sysv3 - ;; - ebmon29k) - basic_machine=a29k-amd - os=-ebmon - ;; - elxsi) - basic_machine=elxsi-elxsi - os=-bsd - ;; - encore | umax | mmax) - basic_machine=ns32k-encore - ;; - es1800 | OSE68k | ose68k | ose | OSE) - basic_machine=m68k-ericsson - os=-ose - ;; - fx2800) - basic_machine=i860-alliant - ;; - genix) - basic_machine=ns32k-ns - ;; - gmicro) - basic_machine=tron-gmicro - os=-sysv - ;; - go32) - basic_machine=i386-pc - os=-go32 - ;; - h3050r* | hiux*) - basic_machine=hppa1.1-hitachi - os=-hiuxwe2 - ;; - h8300hms) - basic_machine=h8300-hitachi - os=-hms - ;; - h8300xray) - basic_machine=h8300-hitachi - os=-xray - ;; - h8500hms) - basic_machine=h8500-hitachi - os=-hms - ;; - harris) - basic_machine=m88k-harris - os=-sysv3 - ;; - hp300-*) - basic_machine=m68k-hp - ;; - hp300bsd) - basic_machine=m68k-hp - os=-bsd - ;; - hp300hpux) - basic_machine=m68k-hp - os=-hpux - ;; - hp3k9[0-9][0-9] | hp9[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k2[0-9][0-9] | hp9k31[0-9]) - basic_machine=m68000-hp - ;; - hp9k3[2-9][0-9]) - basic_machine=m68k-hp - ;; - hp9k6[0-9][0-9] | hp6[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k7[0-79][0-9] | hp7[0-79][0-9]) - basic_machine=hppa1.1-hp - ;; - hp9k78[0-9] | hp78[0-9]) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][13679] | hp8[0-9][13679]) - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][0-9] | hp8[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hppa-next) - os=-nextstep3 - ;; - hppaosf) - basic_machine=hppa1.1-hp - os=-osf - ;; - hppro) - basic_machine=hppa1.1-hp - os=-proelf - ;; - i370-ibm* | ibm*) - basic_machine=i370-ibm - ;; -# I'm not sure what "Sysv32" means. Should this be sysv3.2? - i*86v32) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv32 - ;; - i*86v4*) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv4 - ;; - i*86v) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv - ;; - i*86sol2) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-solaris2 - ;; - i386mach) - basic_machine=i386-mach - os=-mach - ;; - i386-vsta | vsta) - basic_machine=i386-unknown - os=-vsta - ;; - iris | iris4d) - basic_machine=mips-sgi - case $os in - -irix*) - ;; - *) - os=-irix4 - ;; - esac - ;; - isi68 | isi) - basic_machine=m68k-isi - os=-sysv - ;; - m68knommu) - basic_machine=m68k-unknown - os=-linux - ;; - m68knommu-*) - basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - m88k-omron*) - basic_machine=m88k-omron - ;; - magnum | m3230) - basic_machine=mips-mips - os=-sysv - ;; - merlin) - basic_machine=ns32k-utek - os=-sysv - ;; - microblaze) - basic_machine=microblaze-xilinx - ;; - mingw32) - basic_machine=i386-pc - os=-mingw32 - ;; - mingw32ce) - basic_machine=arm-unknown - os=-mingw32ce - ;; - miniframe) - basic_machine=m68000-convergent - ;; - *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; - mips3*-*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` - ;; - mips3*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown - ;; - monitor) - basic_machine=m68k-rom68k - os=-coff - ;; - morphos) - basic_machine=powerpc-unknown - os=-morphos - ;; - msdos) - basic_machine=i386-pc - os=-msdos - ;; - ms1-*) - basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` - ;; - msys) - basic_machine=i386-pc - os=-msys - ;; - mvs) - basic_machine=i370-ibm - os=-mvs - ;; - nacl) - basic_machine=le32-unknown - os=-nacl - ;; - ncr3000) - basic_machine=i486-ncr - os=-sysv4 - ;; - netbsd386) - basic_machine=i386-unknown - os=-netbsd - ;; - netwinder) - basic_machine=armv4l-rebel - os=-linux - ;; - news | news700 | news800 | news900) - basic_machine=m68k-sony - os=-newsos - ;; - news1000) - basic_machine=m68030-sony - os=-newsos - ;; - news-3600 | risc-news) - basic_machine=mips-sony - os=-newsos - ;; - necv70) - basic_machine=v70-nec - os=-sysv - ;; - next | m*-next ) - basic_machine=m68k-next - case $os in - -nextstep* ) - ;; - -ns2*) - os=-nextstep2 - ;; - *) - os=-nextstep3 - ;; - esac - ;; - nh3000) - basic_machine=m68k-harris - os=-cxux - ;; - nh[45]000) - basic_machine=m88k-harris - os=-cxux - ;; - nindy960) - basic_machine=i960-intel - os=-nindy - ;; - mon960) - basic_machine=i960-intel - os=-mon960 - ;; - nonstopux) - basic_machine=mips-compaq - os=-nonstopux - ;; - np1) - basic_machine=np1-gould - ;; - neo-tandem) - basic_machine=neo-tandem - ;; - nse-tandem) - basic_machine=nse-tandem - ;; - nsr-tandem) - basic_machine=nsr-tandem - ;; - op50n-* | op60c-*) - basic_machine=hppa1.1-oki - os=-proelf - ;; - openrisc | openrisc-*) - basic_machine=or32-unknown - ;; - os400) - basic_machine=powerpc-ibm - os=-os400 - ;; - OSE68000 | ose68000) - basic_machine=m68000-ericsson - os=-ose - ;; 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then - AC_MSG_CHECKING([if LD -Wl,--version-script works]) - save_LDFLAGS="$LDFLAGS" - LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" - cat > conftest.map < rather than standard .])]) - -# See whether type size_t is defined in any ANSI-standard places; -# if not, perhaps it is defined in . -AC_MSG_CHECKING([for size_t]) -AC_TRY_COMPILE([ -#ifdef HAVE_STDDEF_H -#include -#endif -#ifdef HAVE_STDLIB_H -#include -#endif -#include -#ifdef NEED_BSD_STRINGS -#include -#else -#include -#endif -typedef size_t my_size_t; -], - [ my_size_t foovar; ], - [ijg_size_t_ok=yes], - [ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"]) -AC_MSG_RESULT([$ijg_size_t_ok]) -if test "$ijg_size_t_ok" != yes; then - AC_CHECK_HEADER([sys/types.h], - [AC_DEFINE([NEED_SYS_TYPES_H], [1], - [Need to include in order to obtain size_t.]) - AC_EGREP_CPP([size_t], [#include ], - [ijg_size_t_ok="size_t is in sys/types.h"], - [ijg_size_t_ok=no])], - [ijg_size_t_ok=no]) - AC_MSG_RESULT([$ijg_size_t_ok]) - if test "$ijg_size_t_ok" = no; then - AC_MSG_WARN([Type size_t is not defined in any of the usual places. - Try putting '"typedef unsigned int size_t;"' in jconfig.h.]) - fi -fi - -# Check compiler characteristics -AC_MSG_CHECKING([for type unsigned char]) -AC_TRY_COMPILE([], [ unsigned char un_char; ], - [AC_MSG_RESULT(yes) - AC_DEFINE([HAVE_UNSIGNED_CHAR], [1], - [Compiler supports 'unsigned char'.])], - [AC_MSG_RESULT(no)]) - -AC_MSG_CHECKING([for type unsigned short]) -AC_TRY_COMPILE([], [ unsigned short un_short; ], - [AC_MSG_RESULT(yes) - AC_DEFINE([HAVE_UNSIGNED_SHORT], [1], - [Compiler supports 'unsigned short'.])], - [AC_MSG_RESULT(no)]) - -AC_MSG_CHECKING([for type void]) -AC_TRY_COMPILE([ -/* Caution: a C++ compiler will insist on valid prototypes */ -typedef void * void_ptr; /* check void * */ -#ifdef HAVE_PROTOTYPES /* check ptr to function returning void */ -typedef void (*void_func) (int a, int b); -#else -typedef void (*void_func) (); -#endif - -#ifdef HAVE_PROTOTYPES /* check void function result */ -void test3function (void_ptr arg1, void_func arg2) -#else -void test3function (arg1, arg2) - void_ptr arg1; - void_func arg2; -#endif -{ - char * locptr = (char *) arg1; /* check casting to and from void * */ - arg1 = (void *) locptr; - (*arg2) (1, 2); /* check call of fcn returning void */ -} -], [ ], - [AC_MSG_RESULT(yes)], - [AC_MSG_RESULT(no) - AC_DEFINE([void], [char], - [Define 'void' as 'char' for archaic compilers - that don't understand it.])]) -AC_C_CONST - -# Check for non-broken inline under various spellings -AC_MSG_CHECKING([for inline]) -ijg_cv_inline="" -AC_TRY_COMPILE([], [} __inline__ int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="__inline__", -[AC_TRY_COMPILE(, [} __inline int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="__inline", -[AC_TRY_COMPILE(, [} inline int foo() { return 0; } -int bar() { return foo();], ijg_cv_inline="inline")])]) -AC_MSG_RESULT($ijg_cv_inline) -AC_DEFINE_UNQUOTED([INLINE], [$ijg_cv_inline], - [How to obtain function inlining.]) - -# We cannot check for bogus warnings, but at least we can check for errors -AC_MSG_CHECKING([for broken incomplete types]) -AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], - [], - [AC_MSG_RESULT(ok)], - [AC_MSG_RESULT(broken) - AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1], - [Compiler does not support pointers to unspecified - structures.])]) - -# Test whether global names are unique to at least 15 chars -AC_MSG_CHECKING([for short external names]) -AC_TRY_LINK([ -int possibly_duplicate_function () { return 0; } -int possibly_dupli_function () { return 1; } -], [], - [AC_MSG_RESULT(ok)], - [AC_MSG_RESULT(short) - AC_DEFINE([NEED_SHORT_EXTERNAL_NAMES], [1], - [Linker requires that global names be unique in - first 15 characters.])]) - -# Run-time checks -AC_MSG_CHECKING([to see if char is signed]) -AC_TRY_RUN([ -#ifdef HAVE_PROTOTYPES -int is_char_signed (int arg) -#else -int is_char_signed (arg) - int arg; -#endif -{ - if (arg == 189) { /* expected result for unsigned char */ - return 0; /* type char is unsigned */ - } - else if (arg != -67) { /* expected result for signed char */ - printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - } - return 1; /* assume char is signed otherwise */ -} -char signed_char_check = (char) (-67); -int main() { - exit(is_char_signed((int) signed_char_check)); -}], [AC_MSG_RESULT(no) - AC_DEFINE([CHAR_IS_UNSIGNED], [1], - [Characters are unsigned])], - [AC_MSG_RESULT(yes)], -[AC_MSG_WARN([Assuming that char is signed on target machine. - If it is unsigned, this will be a little bit inefficient.]) -]) - -AC_MSG_CHECKING([to see if right shift is signed]) -AC_TRY_RUN([ -#ifdef HAVE_PROTOTYPES -int is_shifting_signed (long arg) -#else -int is_shifting_signed (arg) - long arg; -#endif -/* See whether right-shift on a long is signed or not. */ -{ - long res = arg >> 4; - - if (res == -0x7F7E80CL) { /* expected result for signed shift */ - return 1; /* right shift is signed */ - } - /* see if unsigned-shift hack will fix it. */ - /* we can't just test exact value since it depends on width of long... */ - res |= (~0L) << (32-4); - if (res == -0x7F7E80CL) { /* expected result now? */ - return 0; /* right shift is unsigned */ - } - printf("Right shift isn't acting as I expect it to.\n"); - printf("I fear the JPEG software will not work at all.\n\n"); - return 0; /* try it with unsigned anyway */ -} -int main() { - exit(is_shifting_signed(-0x7F7E80B1L)); -}], - [AC_MSG_RESULT(no) - AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], [1], - [Broken compiler shifts signed values as an unsigned shift.])], - [AC_MSG_RESULT(yes)], - [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)]) - -AC_MSG_CHECKING([to see if fopen accepts b spec]) -AC_TRY_RUN([ -#include -int main() { - if (fopen("conftestdata", "wb") != NULL) - exit(0); - exit(1); -}], - [AC_MSG_RESULT(yes)], - [AC_MSG_RESULT(no) - AC_DEFINE([DONT_USE_B_MODE], [1], - [Don't open files in binary mode.])], - [AC_MSG_RESULT(Assuming that it does.)]) - -# Configure libtool -AC_LIBTOOL_WIN32_DLL -AC_PROG_LIBTOOL - -# Select memory manager depending on user input. -# If no "-enable-maxmem", use jmemnobs -MEMORYMGR='jmemnobs' -MAXMEM="no" -AC_ARG_ENABLE([maxmem], -[ --enable-maxmem[=N] enable use of temp files, set max mem usage to N MB], -[MAXMEM="$enableval"]) -dnl [# support --with-maxmem for backwards compatibility with IJG V5.] -dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval") -if test "x$MAXMEM" = xyes; 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# UTC - -# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009, 2010, -# 2011 Free Software Foundation, Inc. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Originally written by Alexandre Oliva . - -case $1 in - '') - echo "$0: No command. 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It works by - # looking at the text of this script. This case will never be run, - # since it is checked for above. - exit 1 - ;; - -none) - exec "$@" - ;; - -*) - echo "Unknown depmode $depmode" 1>&2 - exit 1 - ;; -esac - -exit 0 - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpeg/djpeg.1 b/jpeg/djpeg.1 deleted file mode 100755 index f3722d1..0000000 --- a/jpeg/djpeg.1 +++ /dev/null @@ -1,252 +0,0 @@ -.TH DJPEG 1 "3 October 2009" -.SH NAME -djpeg \- decompress a JPEG file to an image file -.SH SYNOPSIS -.B djpeg -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B djpeg -decompresses the named JPEG file, or the standard input if no file is named, -and produces an image file on the standard output. PBMPLUS (PPM/PGM), BMP, -GIF, Targa, or RLE (Utah Raster Toolkit) output format can be selected. -(RLE is supported only if the URT library is available.) -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-grayscale -may be written -.B \-gray -or -.BR \-gr . -Most of the "basic" switches can be abbreviated to as little as one letter. -Upper and lower case are equivalent (thus -.B \-BMP -is the same as -.BR \-bmp ). -British spellings are also accepted (e.g., -.BR \-greyscale ), -though for brevity these are not mentioned below. -.PP -The basic switches are: -.TP -.BI \-colors " N" -Reduce image to at most N colors. This reduces the number of colors used in -the output image, so that it can be displayed on a colormapped display or -stored in a colormapped file format. For example, if you have an 8-bit -display, you'd need to reduce to 256 or fewer colors. -.TP -.BI \-quantize " N" -Same as -.BR \-colors . -.B \-colors -is the recommended name, -.B \-quantize -is provided only for backwards compatibility. -.TP -.B \-fast -Select recommended processing options for fast, low quality output. (The -default options are chosen for highest quality output.) Currently, this is -equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR. -.TP -.B \-grayscale -Force gray-scale output even if JPEG file is color. Useful for viewing on -monochrome displays; also, -.B djpeg -runs noticeably faster in this mode. -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. Currently supported scale factors are -M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for -baseline JPEG. If the /N part is omitted, then M specifies the DCT scaled -size to be applied on the given input. For baseline JPEG this is equivalent -to M/8 scaling, since the source DCT size for baseline JPEG is 8. -Scaling is handy if the image is larger than your screen; also, -.B djpeg -runs much faster when scaling down the output. -.TP -.B \-bmp -Select BMP output format (Windows flavor). 8-bit colormapped format is -emitted if -.B \-colors -or -.B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color -format is emitted. -.TP -.B \-gif -Select GIF output format. Since GIF does not support more than 256 colors, -.B \-colors 256 -is assumed (unless you specify a smaller number of colors). -.TP -.B \-os2 -Select BMP output format (OS/2 1.x flavor). 8-bit colormapped format is -emitted if -.B \-colors -or -.B \-grayscale -is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color -format is emitted. -.TP -.B \-pnm -Select PBMPLUS (PPM/PGM) output format (this is the default format). -PGM is emitted if the JPEG file is gray-scale or if -.B \-grayscale -is specified; otherwise PPM is emitted. -.TP -.B \-rle -Select RLE output format. (Requires URT library.) -.TP -.B \-targa -Select Targa output format. Gray-scale format is emitted if the JPEG file is -gray-scale or if -.B \-grayscale -is specified; otherwise, colormapped format is emitted if -.B \-colors -is specified; otherwise, 24-bit full-color format is emitted. -.PP -Switches for advanced users: -.TP -.B \-dct int -Use integer DCT method (default). -.TP -.B \-dct fast -Use fast integer DCT (less accurate). -.TP -.B \-dct float -Use floating-point DCT method. -The float method is very slightly more accurate than the int method, but is -much slower unless your machine has very fast floating-point hardware. Also -note that results of the floating-point method may vary slightly across -machines, while the integer methods should give the same results everywhere. -The fast integer method is much less accurate than the other two. -.TP -.B \-dither fs -Use Floyd-Steinberg dithering in color quantization. -.TP -.B \-dither ordered -Use ordered dithering in color quantization. -.TP -.B \-dither none -Do not use dithering in color quantization. -By default, Floyd-Steinberg dithering is applied when quantizing colors; this -is slow but usually produces the best results. Ordered dither is a compromise -between speed and quality; no dithering is fast but usually looks awful. Note -that these switches have no effect unless color quantization is being done. -Ordered dither is only available in -.B \-onepass -mode. -.TP -.BI \-map " file" -Quantize to the colors used in the specified image file. This is useful for -producing multiple files with identical color maps, or for forcing a -predefined set of colors to be used. The -.I file -must be a GIF or PPM file. This option overrides -.B \-colors -and -.BR \-onepass . -.TP -.B \-nosmooth -Don't use high-quality upsampling. -.TP -.B \-onepass -Use one-pass instead of two-pass color quantization. The one-pass method is -faster and needs less memory, but it produces a lower-quality image. -.B \-onepass -is ignored unless you also say -.B \-colors -.IR N . -Also, the one-pass method is always used for gray-scale output (the two-pass -method is no improvement then). -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.SH EXAMPLES -.LP -This example decompresses the JPEG file foo.jpg, quantizes it to -256 colors, and saves the output in 8-bit BMP format in foo.bmp: -.IP -.B djpeg \-colors 256 \-bmp -.I foo.jpg -.B > -.I foo.bmp -.SH HINTS -To get a quick preview of an image, use the -.B \-grayscale -and/or -.B \-scale -switches. -.B \-grayscale \-scale 1/8 -is the fastest case. -.PP -Several options are available that trade off image quality to gain speed. -.B \-fast -turns on the recommended settings. -.PP -.B \-dct fast -and/or -.B \-nosmooth -gain speed at a small sacrifice in quality. -When producing a color-quantized image, -.B \-onepass \-dither ordered -is fast but much lower quality than the default behavior. -.B \-dither none -may give acceptable results in two-pass mode, but is seldom tolerable in -one-pass mode. -.PP -If you are fortunate enough to have very fast floating point hardware, -\fB\-dct float\fR may be even faster than \fB\-dct fast\fR. But on most -machines \fB\-dct float\fR is slower than \fB\-dct int\fR; in this case it is -not worth using, because its theoretical accuracy advantage is too small to be -significant in practice. -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR cjpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -.BR ppm (5), -.BR pgm (5) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -To avoid the Unisys LZW patent, -.B djpeg -produces uncompressed GIF files. These are larger than they should be, but -are readable by standard GIF decoders. diff --git a/jpeg/djpeg.c b/jpeg/djpeg.c deleted file mode 100755 index bc544dc..0000000 --- a/jpeg/djpeg.c +++ /dev/null @@ -1,617 +0,0 @@ -/* - * djpeg.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for the JPEG decompressor. - * It should work on any system with Unix- or MS-DOS-style command lines. - * - * Two different command line styles are permitted, depending on the - * compile-time switch TWO_FILE_COMMANDLINE: - * djpeg [options] inputfile outputfile - * djpeg [options] [inputfile] - * In the second style, output is always to standard output, which you'd - * normally redirect to a file or pipe to some other program. Input is - * either from a named file or from standard input (typically redirected). - * The second style is convenient on Unix but is unhelpful on systems that - * don't support pipes. Also, you MUST use the first style if your system - * doesn't do binary I/O to stdin/stdout. - * To simplify script writing, the "-outfile" switch is provided. The syntax - * djpeg [options] -outfile outputfile inputfile - * works regardless of which command line style is used. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "jversion.h" /* for version message */ - -#include /* to declare isprint() */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* Create the add-on message string table. */ - -#define JMESSAGE(code,string) string , - -static const char * const cdjpeg_message_table[] = { -#include "cderror.h" - NULL -}; - - -/* - * This list defines the known output image formats - * (not all of which need be supported by a given version). - * You can change the default output format by defining DEFAULT_FMT; - * indeed, you had better do so if you undefine PPM_SUPPORTED. - */ - -typedef enum { - FMT_BMP, /* BMP format (Windows flavor) */ - FMT_GIF, /* GIF format */ - FMT_OS2, /* BMP format (OS/2 flavor) */ - FMT_PPM, /* PPM/PGM (PBMPLUS formats) */ - FMT_RLE, /* RLE format */ - FMT_TARGA, /* Targa format */ - FMT_TIFF /* TIFF format */ -} IMAGE_FORMATS; - -#ifndef DEFAULT_FMT /* so can override from CFLAGS in Makefile */ -#define DEFAULT_FMT FMT_PPM -#endif - -static IMAGE_FORMATS requested_fmt; - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -colors N Reduce image to no more than N colors\n"); - fprintf(stderr, " -fast Fast, low-quality processing\n"); - fprintf(stderr, " -grayscale Force grayscale output\n"); -#ifdef IDCT_SCALING_SUPPORTED - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -bmp Select BMP output format (Windows style)%s\n", - (DEFAULT_FMT == FMT_BMP ? " (default)" : "")); -#endif -#ifdef GIF_SUPPORTED - fprintf(stderr, " -gif Select GIF output format%s\n", - (DEFAULT_FMT == FMT_GIF ? " (default)" : "")); -#endif -#ifdef BMP_SUPPORTED - fprintf(stderr, " -os2 Select BMP output format (OS/2 style)%s\n", - (DEFAULT_FMT == FMT_OS2 ? " (default)" : "")); -#endif -#ifdef PPM_SUPPORTED - fprintf(stderr, " -pnm Select PBMPLUS (PPM/PGM) output format%s\n", - (DEFAULT_FMT == FMT_PPM ? " (default)" : "")); -#endif -#ifdef RLE_SUPPORTED - fprintf(stderr, " -rle Select Utah RLE output format%s\n", - (DEFAULT_FMT == FMT_RLE ? " (default)" : "")); -#endif -#ifdef TARGA_SUPPORTED - fprintf(stderr, " -targa Select Targa output format%s\n", - (DEFAULT_FMT == FMT_TARGA ? " (default)" : "")); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef DCT_ISLOW_SUPPORTED - fprintf(stderr, " -dct int Use integer DCT method%s\n", - (JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : "")); -#endif -#ifdef DCT_IFAST_SUPPORTED - fprintf(stderr, " -dct fast Use fast integer DCT (less accurate)%s\n", - (JDCT_DEFAULT == JDCT_IFAST ? " (default)" : "")); -#endif -#ifdef DCT_FLOAT_SUPPORTED - fprintf(stderr, " -dct float Use floating-point DCT method%s\n", - (JDCT_DEFAULT == JDCT_FLOAT ? " (default)" : "")); -#endif - fprintf(stderr, " -dither fs Use F-S dithering (default)\n"); - fprintf(stderr, " -dither none Don't use dithering in quantization\n"); - fprintf(stderr, " -dither ordered Use ordered dither (medium speed, quality)\n"); -#ifdef QUANT_2PASS_SUPPORTED - fprintf(stderr, " -map FILE Map to colors used in named image file\n"); -#endif - fprintf(stderr, " -nosmooth Don't use high-quality upsampling\n"); -#ifdef QUANT_1PASS_SUPPORTED - fprintf(stderr, " -onepass Use 1-pass quantization (fast, low quality)\n"); -#endif - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - exit(EXIT_FAILURE); -} - - -LOCAL(int) -parse_switches (j_decompress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - - /* Set up default JPEG parameters. */ - requested_fmt = DEFAULT_FMT; /* set default output file format */ - outfilename = NULL; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "bmp", 1)) { - /* BMP output format. */ - requested_fmt = FMT_BMP; - - } else if (keymatch(arg, "colors", 1) || keymatch(arg, "colours", 1) || - keymatch(arg, "quantize", 1) || keymatch(arg, "quantise", 1)) { - /* Do color quantization. */ - int val; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d", &val) != 1) - usage(); - cinfo->desired_number_of_colors = val; - cinfo->quantize_colors = TRUE; - - } else if (keymatch(arg, "dct", 2)) { - /* Select IDCT algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "int", 1)) { - cinfo->dct_method = JDCT_ISLOW; - } else if (keymatch(argv[argn], "fast", 2)) { - cinfo->dct_method = JDCT_IFAST; - } else if (keymatch(argv[argn], "float", 2)) { - cinfo->dct_method = JDCT_FLOAT; - } else - usage(); - - } else if (keymatch(arg, "dither", 2)) { - /* Select dithering algorithm. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "fs", 2)) { - cinfo->dither_mode = JDITHER_FS; - } else if (keymatch(argv[argn], "none", 2)) { - cinfo->dither_mode = JDITHER_NONE; - } else if (keymatch(argv[argn], "ordered", 2)) { - cinfo->dither_mode = JDITHER_ORDERED; - } else - usage(); - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's DJPEG, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "fast", 1)) { - /* Select recommended processing options for quick-and-dirty output. */ - cinfo->two_pass_quantize = FALSE; - cinfo->dither_mode = JDITHER_ORDERED; - if (! cinfo->quantize_colors) /* don't override an earlier -colors */ - cinfo->desired_number_of_colors = 216; - cinfo->dct_method = JDCT_FASTEST; - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "gif", 1)) { - /* GIF output format. */ - requested_fmt = FMT_GIF; - - } else if (keymatch(arg, "grayscale", 2) || keymatch(arg, "greyscale",2)) { - /* Force monochrome output. */ - cinfo->out_color_space = JCS_GRAYSCALE; - - } else if (keymatch(arg, "map", 3)) { - /* Quantize to a color map taken from an input file. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (for_real) { /* too expensive to do twice! */ -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - FILE * mapfile; - - if ((mapfile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - read_color_map(cinfo, mapfile); - fclose(mapfile); - cinfo->quantize_colors = TRUE; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "nosmooth", 3)) { - /* Suppress fancy upsampling */ - cinfo->do_fancy_upsampling = FALSE; - - } else if (keymatch(arg, "onepass", 3)) { - /* Use fast one-pass quantization. */ - cinfo->two_pass_quantize = FALSE; - - } else if (keymatch(arg, "os2", 3)) { - /* BMP output format (OS/2 flavor). */ - requested_fmt = FMT_OS2; - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "pnm", 1) || keymatch(arg, "ppm", 1)) { - /* PPM/PGM output format. */ - requested_fmt = FMT_PPM; - - } else if (keymatch(arg, "rle", 1)) { - /* RLE output format. */ - requested_fmt = FMT_RLE; - - } else if (keymatch(arg, "scale", 1)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%d/%d", - &cinfo->scale_num, &cinfo->scale_denom) < 1) - usage(); - - } else if (keymatch(arg, "targa", 1)) { - /* Targa output format. */ - requested_fmt = FMT_TARGA; - - } else { - usage(); /* bogus switch */ - } - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * Marker processor for COM and interesting APPn markers. - * This replaces the library's built-in processor, which just skips the marker. - * We want to print out the marker as text, to the extent possible. - * Note this code relies on a non-suspending data source. - */ - -LOCAL(unsigned int) -jpeg_getc (j_decompress_ptr cinfo) -/* Read next byte */ -{ - struct jpeg_source_mgr * datasrc = cinfo->src; - - if (datasrc->bytes_in_buffer == 0) { - if (! (*datasrc->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - datasrc->bytes_in_buffer--; - return GETJOCTET(*datasrc->next_input_byte++); -} - - -METHODDEF(boolean) -print_text_marker (j_decompress_ptr cinfo) -{ - boolean traceit = (cinfo->err->trace_level >= 1); - INT32 length; - unsigned int ch; - unsigned int lastch = 0; - - length = jpeg_getc(cinfo) << 8; - length += jpeg_getc(cinfo); - length -= 2; /* discount the length word itself */ - - if (traceit) { - if (cinfo->unread_marker == JPEG_COM) - fprintf(stderr, "Comment, length %ld:\n", (long) length); - else /* assume it is an APPn otherwise */ - fprintf(stderr, "APP%d, length %ld:\n", - cinfo->unread_marker - JPEG_APP0, (long) length); - } - - while (--length >= 0) { - ch = jpeg_getc(cinfo); - if (traceit) { - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - if (ch == '\r') { - fprintf(stderr, "\n"); - } else if (ch == '\n') { - if (lastch != '\r') - fprintf(stderr, "\n"); - } else if (ch == '\\') { - fprintf(stderr, "\\\\"); - } else if (isprint(ch)) { - putc(ch, stderr); - } else { - fprintf(stderr, "\\%03o", ch); - } - lastch = ch; - } - } - - if (traceit) - fprintf(stderr, "\n"); - - return TRUE; -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - int file_index; - djpeg_dest_ptr dest_mgr = NULL; - FILE * input_file; - FILE * output_file; - JDIMENSION num_scanlines; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "djpeg"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - /* Add some application-specific error messages (from cderror.h) */ - jerr.addon_message_table = cdjpeg_message_table; - jerr.first_addon_message = JMSG_FIRSTADDONCODE; - jerr.last_addon_message = JMSG_LASTADDONCODE; - - /* Insert custom marker processor for COM and APP12. - * APP12 is used by some digital camera makers for textual info, - * so we provide the ability to display it as text. - * If you like, additional APPn marker types can be selected for display, - * but don't try to override APP0 or APP14 this way (see libjpeg.doc). - */ - jpeg_set_marker_processor(&cinfo, JPEG_COM, print_text_marker); - jpeg_set_marker_processor(&cinfo, JPEG_APP0+12, print_text_marker); - - /* Now safe to enable signal catcher. */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &cinfo); -#endif - - /* Scan command line to find file names. */ - /* It is convenient to use just one switch-parsing routine, but the switch - * values read here are ignored; we will rescan the switches after opening - * the input file. - * (Exception: tracing level set here controls verbosity for COM markers - * found during jpeg_read_header...) - */ - - file_index = parse_switches(&cinfo, argc, argv, 0, FALSE); - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((input_file = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - input_file = read_stdin(); - } - - /* Open the output file. */ - if (outfilename != NULL) { - if ((output_file = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - output_file = write_stdout(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &cinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&cinfo, input_file); - - /* Read file header, set default decompression parameters */ - (void) jpeg_read_header(&cinfo, TRUE); - - /* Adjust default decompression parameters by re-parsing the options */ - file_index = parse_switches(&cinfo, argc, argv, 0, TRUE); - - /* Initialize the output module now to let it override any crucial - * option settings (for instance, GIF wants to force color quantization). - */ - switch (requested_fmt) { -#ifdef BMP_SUPPORTED - case FMT_BMP: - dest_mgr = jinit_write_bmp(&cinfo, FALSE); - break; - case FMT_OS2: - dest_mgr = jinit_write_bmp(&cinfo, TRUE); - break; -#endif -#ifdef GIF_SUPPORTED - case FMT_GIF: - dest_mgr = jinit_write_gif(&cinfo); - break; -#endif -#ifdef PPM_SUPPORTED - case FMT_PPM: - dest_mgr = jinit_write_ppm(&cinfo); - break; -#endif -#ifdef RLE_SUPPORTED - case FMT_RLE: - dest_mgr = jinit_write_rle(&cinfo); - break; -#endif -#ifdef TARGA_SUPPORTED - case FMT_TARGA: - dest_mgr = jinit_write_targa(&cinfo); - break; -#endif - default: - ERREXIT(&cinfo, JERR_UNSUPPORTED_FORMAT); - break; - } - dest_mgr->output_file = output_file; - - /* Start decompressor */ - (void) jpeg_start_decompress(&cinfo); - - /* Write output file header */ - (*dest_mgr->start_output) (&cinfo, dest_mgr); - - /* Process data */ - while (cinfo.output_scanline < cinfo.output_height) { - num_scanlines = jpeg_read_scanlines(&cinfo, dest_mgr->buffer, - dest_mgr->buffer_height); - (*dest_mgr->put_pixel_rows) (&cinfo, dest_mgr, num_scanlines); - } - -#ifdef PROGRESS_REPORT - /* Hack: count final pass as done in case finish_output does an extra pass. - * The library won't have updated completed_passes. - */ - progress.pub.completed_passes = progress.pub.total_passes; -#endif - - /* Finish decompression and release memory. - * I must do it in this order because output module has allocated memory - * of lifespan JPOOL_IMAGE; it needs to finish before releasing memory. - */ - (*dest_mgr->finish_output) (&cinfo, dest_mgr); - (void) jpeg_finish_decompress(&cinfo); - jpeg_destroy_decompress(&cinfo); - - /* Close files, if we opened them */ - if (input_file != stdin) - fclose(input_file); - if (output_file != stdout) - fclose(output_file); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &cinfo); -#endif - - /* All done. */ - exit(jerr.num_warnings ? EXIT_WARNING : EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpeg/example.c b/jpeg/example.c deleted file mode 100755 index 1d6f6cc..0000000 --- a/jpeg/example.c +++ /dev/null @@ -1,433 +0,0 @@ -/* - * example.c - * - * This file illustrates how to use the IJG code as a subroutine library - * to read or write JPEG image files. You should look at this code in - * conjunction with the documentation file libjpeg.txt. - * - * This code will not do anything useful as-is, but it may be helpful as a - * skeleton for constructing routines that call the JPEG library. - * - * We present these routines in the same coding style used in the JPEG code - * (ANSI function definitions, etc); but you are of course free to code your - * routines in a different style if you prefer. - */ - -#include - -/* - * Include file for users of JPEG library. - * You will need to have included system headers that define at least - * the typedefs FILE and size_t before you can include jpeglib.h. - * (stdio.h is sufficient on ANSI-conforming systems.) - * You may also wish to include "jerror.h". - */ - -#include "jpeglib.h" - -/* - * is used for the optional error recovery mechanism shown in - * the second part of the example. - */ - -#include - - - -/******************** JPEG COMPRESSION SAMPLE INTERFACE *******************/ - -/* This half of the example shows how to feed data into the JPEG compressor. - * We present a minimal version that does not worry about refinements such - * as error recovery (the JPEG code will just exit() if it gets an error). - */ - - -/* - * IMAGE DATA FORMATS: - * - * The standard input image format is a rectangular array of pixels, with - * each pixel having the same number of "component" values (color channels). - * Each pixel row is an array of JSAMPLEs (which typically are unsigned chars). - * If you are working with color data, then the color values for each pixel - * must be adjacent in the row; for example, R,G,B,R,G,B,R,G,B,... for 24-bit - * RGB color. - * - * For this example, we'll assume that this data structure matches the way - * our application has stored the image in memory, so we can just pass a - * pointer to our image buffer. In particular, let's say that the image is - * RGB color and is described by: - */ - -extern JSAMPLE * image_buffer; /* Points to large array of R,G,B-order data */ -extern int image_height; /* Number of rows in image */ -extern int image_width; /* Number of columns in image */ - - -/* - * Sample routine for JPEG compression. We assume that the target file name - * and a compression quality factor are passed in. - */ - -GLOBAL(void) -write_JPEG_file (char * filename, int quality) -{ - /* This struct contains the JPEG compression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - * It is possible to have several such structures, representing multiple - * compression/decompression processes, in existence at once. We refer - * to any one struct (and its associated working data) as a "JPEG object". - */ - struct jpeg_compress_struct cinfo; - /* This struct represents a JPEG error handler. It is declared separately - * because applications often want to supply a specialized error handler - * (see the second half of this file for an example). But here we just - * take the easy way out and use the standard error handler, which will - * print a message on stderr and call exit() if compression fails. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - struct jpeg_error_mgr jerr; - /* More stuff */ - FILE * outfile; /* target file */ - JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */ - int row_stride; /* physical row width in image buffer */ - - /* Step 1: allocate and initialize JPEG compression object */ - - /* We have to set up the error handler first, in case the initialization - * step fails. (Unlikely, but it could happen if you are out of memory.) - * This routine fills in the contents of struct jerr, and returns jerr's - * address which we place into the link field in cinfo. - */ - cinfo.err = jpeg_std_error(&jerr); - /* Now we can initialize the JPEG compression object. */ - jpeg_create_compress(&cinfo); - - /* Step 2: specify data destination (eg, a file) */ - /* Note: steps 2 and 3 can be done in either order. */ - - /* Here we use the library-supplied code to send compressed data to a - * stdio stream. You can also write your own code to do something else. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to write binary files. - */ - if ((outfile = fopen(filename, "wb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_dest(&cinfo, outfile); - - /* Step 3: set parameters for compression */ - - /* First we supply a description of the input image. - * Four fields of the cinfo struct must be filled in: - */ - cinfo.image_width = image_width; /* image width and height, in pixels */ - cinfo.image_height = image_height; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - /* Now use the library's routine to set default compression parameters. - * (You must set at least cinfo.in_color_space before calling this, - * since the defaults depend on the source color space.) - */ - jpeg_set_defaults(&cinfo); - /* Now you can set any non-default parameters you wish to. - * Here we just illustrate the use of quality (quantization table) scaling: - */ - jpeg_set_quality(&cinfo, quality, TRUE /* limit to baseline-JPEG values */); - - /* Step 4: Start compressor */ - - /* TRUE ensures that we will write a complete interchange-JPEG file. - * Pass TRUE unless you are very sure of what you're doing. - */ - jpeg_start_compress(&cinfo, TRUE); - - /* Step 5: while (scan lines remain to be written) */ - /* jpeg_write_scanlines(...); */ - - /* Here we use the library's state variable cinfo.next_scanline as the - * loop counter, so that we don't have to keep track ourselves. - * To keep things simple, we pass one scanline per call; you can pass - * more if you wish, though. - */ - row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ - - while (cinfo.next_scanline < cinfo.image_height) { - /* jpeg_write_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could pass - * more than one scanline at a time if that's more convenient. - */ - row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; - (void) jpeg_write_scanlines(&cinfo, row_pointer, 1); - } - - /* Step 6: Finish compression */ - - jpeg_finish_compress(&cinfo); - /* After finish_compress, we can close the output file. */ - fclose(outfile); - - /* Step 7: release JPEG compression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_compress(&cinfo); - - /* And we're done! */ -} - - -/* - * SOME FINE POINTS: - * - * In the above loop, we ignored the return value of jpeg_write_scanlines, - * which is the number of scanlines actually written. We could get away - * with this because we were only relying on the value of cinfo.next_scanline, - * which will be incremented correctly. If you maintain additional loop - * variables then you should be careful to increment them properly. - * Actually, for output to a stdio stream you needn't worry, because - * then jpeg_write_scanlines will write all the lines passed (or else exit - * with a fatal error). Partial writes can only occur if you use a data - * destination module that can demand suspension of the compressor. - * (If you don't know what that's for, you don't need it.) - * - * If the compressor requires full-image buffers (for entropy-coding - * optimization or a multi-scan JPEG file), it will create temporary - * files for anything that doesn't fit within the maximum-memory setting. - * (Note that temp files are NOT needed if you use the default parameters.) - * On some systems you may need to set up a signal handler to ensure that - * temporary files are deleted if the program is interrupted. See libjpeg.txt. - * - * Scanlines MUST be supplied in top-to-bottom order if you want your JPEG - * files to be compatible with everyone else's. If you cannot readily read - * your data in that order, you'll need an intermediate array to hold the - * image. See rdtarga.c or rdbmp.c for examples of handling bottom-to-top - * source data using the JPEG code's internal virtual-array mechanisms. - */ - - - -/******************** JPEG DECOMPRESSION SAMPLE INTERFACE *******************/ - -/* This half of the example shows how to read data from the JPEG decompressor. - * It's a bit more refined than the above, in that we show: - * (a) how to modify the JPEG library's standard error-reporting behavior; - * (b) how to allocate workspace using the library's memory manager. - * - * Just to make this example a little different from the first one, we'll - * assume that we do not intend to put the whole image into an in-memory - * buffer, but to send it line-by-line someplace else. We need a one- - * scanline-high JSAMPLE array as a work buffer, and we will let the JPEG - * memory manager allocate it for us. This approach is actually quite useful - * because we don't need to remember to deallocate the buffer separately: it - * will go away automatically when the JPEG object is cleaned up. - */ - - -/* - * ERROR HANDLING: - * - * The JPEG library's standard error handler (jerror.c) is divided into - * several "methods" which you can override individually. This lets you - * adjust the behavior without duplicating a lot of code, which you might - * have to update with each future release. - * - * Our example here shows how to override the "error_exit" method so that - * control is returned to the library's caller when a fatal error occurs, - * rather than calling exit() as the standard error_exit method does. - * - * We use C's setjmp/longjmp facility to return control. This means that the - * routine which calls the JPEG library must first execute a setjmp() call to - * establish the return point. We want the replacement error_exit to do a - * longjmp(). But we need to make the setjmp buffer accessible to the - * error_exit routine. To do this, we make a private extension of the - * standard JPEG error handler object. (If we were using C++, we'd say we - * were making a subclass of the regular error handler.) - * - * Here's the extended error handler struct: - */ - -struct my_error_mgr { - struct jpeg_error_mgr pub; /* "public" fields */ - - jmp_buf setjmp_buffer; /* for return to caller */ -}; - -typedef struct my_error_mgr * my_error_ptr; - -/* - * Here's the routine that will replace the standard error_exit method: - */ - -METHODDEF(void) -my_error_exit (j_common_ptr cinfo) -{ - /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */ - my_error_ptr myerr = (my_error_ptr) cinfo->err; - - /* Always display the message. */ - /* We could postpone this until after returning, if we chose. */ - (*cinfo->err->output_message) (cinfo); - - /* Return control to the setjmp point */ - longjmp(myerr->setjmp_buffer, 1); -} - - -/* - * Sample routine for JPEG decompression. We assume that the source file name - * is passed in. We want to return 1 on success, 0 on error. - */ - - -GLOBAL(int) -read_JPEG_file (char * filename) -{ - /* This struct contains the JPEG decompression parameters and pointers to - * working space (which is allocated as needed by the JPEG library). - */ - struct jpeg_decompress_struct cinfo; - /* We use our private extension JPEG error handler. - * Note that this struct must live as long as the main JPEG parameter - * struct, to avoid dangling-pointer problems. - */ - struct my_error_mgr jerr; - /* More stuff */ - FILE * infile; /* source file */ - JSAMPARRAY buffer; /* Output row buffer */ - int row_stride; /* physical row width in output buffer */ - - /* In this example we want to open the input file before doing anything else, - * so that the setjmp() error recovery below can assume the file is open. - * VERY IMPORTANT: use "b" option to fopen() if you are on a machine that - * requires it in order to read binary files. - */ - - if ((infile = fopen(filename, "rb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - return 0; - } - - /* Step 1: allocate and initialize JPEG decompression object */ - - /* We set up the normal JPEG error routines, then override error_exit. */ - cinfo.err = jpeg_std_error(&jerr.pub); - jerr.pub.error_exit = my_error_exit; - /* Establish the setjmp return context for my_error_exit to use. */ - if (setjmp(jerr.setjmp_buffer)) { - /* If we get here, the JPEG code has signaled an error. - * We need to clean up the JPEG object, close the input file, and return. - */ - jpeg_destroy_decompress(&cinfo); - fclose(infile); - return 0; - } - /* Now we can initialize the JPEG decompression object. */ - jpeg_create_decompress(&cinfo); - - /* Step 2: specify data source (eg, a file) */ - - jpeg_stdio_src(&cinfo, infile); - - /* Step 3: read file parameters with jpeg_read_header() */ - - (void) jpeg_read_header(&cinfo, TRUE); - /* We can ignore the return value from jpeg_read_header since - * (a) suspension is not possible with the stdio data source, and - * (b) we passed TRUE to reject a tables-only JPEG file as an error. - * See libjpeg.txt for more info. - */ - - /* Step 4: set parameters for decompression */ - - /* In this example, we don't need to change any of the defaults set by - * jpeg_read_header(), so we do nothing here. - */ - - /* Step 5: Start decompressor */ - - (void) jpeg_start_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* We may need to do some setup of our own at this point before reading - * the data. After jpeg_start_decompress() we have the correct scaled - * output image dimensions available, as well as the output colormap - * if we asked for color quantization. - * In this example, we need to make an output work buffer of the right size. - */ - /* JSAMPLEs per row in output buffer */ - row_stride = cinfo.output_width * cinfo.output_components; - /* Make a one-row-high sample array that will go away when done with image */ - buffer = (*cinfo.mem->alloc_sarray) - ((j_common_ptr) &cinfo, JPOOL_IMAGE, row_stride, 1); - - /* Step 6: while (scan lines remain to be read) */ - /* jpeg_read_scanlines(...); */ - - /* Here we use the library's state variable cinfo.output_scanline as the - * loop counter, so that we don't have to keep track ourselves. - */ - while (cinfo.output_scanline < cinfo.output_height) { - /* jpeg_read_scanlines expects an array of pointers to scanlines. - * Here the array is only one element long, but you could ask for - * more than one scanline at a time if that's more convenient. - */ - (void) jpeg_read_scanlines(&cinfo, buffer, 1); - /* Assume put_scanline_someplace wants a pointer and sample count. */ - put_scanline_someplace(buffer[0], row_stride); - } - - /* Step 7: Finish decompression */ - - (void) jpeg_finish_decompress(&cinfo); - /* We can ignore the return value since suspension is not possible - * with the stdio data source. - */ - - /* Step 8: Release JPEG decompression object */ - - /* This is an important step since it will release a good deal of memory. */ - jpeg_destroy_decompress(&cinfo); - - /* After finish_decompress, we can close the input file. - * Here we postpone it until after no more JPEG errors are possible, - * so as to simplify the setjmp error logic above. (Actually, I don't - * think that jpeg_destroy can do an error exit, but why assume anything...) - */ - fclose(infile); - - /* At this point you may want to check to see whether any corrupt-data - * warnings occurred (test whether jerr.pub.num_warnings is nonzero). - */ - - /* And we're done! */ - return 1; -} - - -/* - * SOME FINE POINTS: - * - * In the above code, we ignored the return value of jpeg_read_scanlines, - * which is the number of scanlines actually read. We could get away with - * this because we asked for only one line at a time and we weren't using - * a suspending data source. See libjpeg.txt for more info. - * - * We cheated a bit by calling alloc_sarray() after jpeg_start_decompress(); - * we should have done it beforehand to ensure that the space would be - * counted against the JPEG max_memory setting. In some systems the above - * code would risk an out-of-memory error. However, in general we don't - * know the output image dimensions before jpeg_start_decompress(), unless we - * call jpeg_calc_output_dimensions(). See libjpeg.txt for more about this. - * - * Scanlines are returned in the same order as they appear in the JPEG file, - * which is standardly top-to-bottom. If you must emit data bottom-to-top, - * you can use one of the virtual arrays provided by the JPEG memory manager - * to invert the data. See wrbmp.c for an example. - * - * As with compression, some operating modes may require temporary files. - * On some systems you may need to set up a signal handler to ensure that - * temporary files are deleted if the program is interrupted. See libjpeg.txt. - */ diff --git a/jpeg/filelist.txt b/jpeg/filelist.txt deleted file mode 100755 index 7e05386..0000000 --- a/jpeg/filelist.txt +++ /dev/null @@ -1,215 +0,0 @@ -IJG JPEG LIBRARY: FILE LIST - -Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -Here is a road map to the files in the IJG JPEG distribution. The -distribution includes the JPEG library proper, plus two application -programs ("cjpeg" and "djpeg") which use the library to convert JPEG -files to and from some other popular image formats. A third application -"jpegtran" uses the library to do lossless conversion between different -variants of JPEG. There are also two stand-alone applications, -"rdjpgcom" and "wrjpgcom". - - -THE JPEG LIBRARY -================ - -Include files: - -jpeglib.h JPEG library's exported data and function declarations. -jconfig.h Configuration declarations. Note: this file is not present - in the distribution; it is generated during installation. -jmorecfg.h Additional configuration declarations; need not be changed - for a standard installation. -jerror.h Declares JPEG library's error and trace message codes. -jinclude.h Central include file used by all IJG .c files to reference - system include files. -jpegint.h JPEG library's internal data structures. -jdct.h Private declarations for forward & reverse DCT subsystems. -jmemsys.h Private declarations for memory management subsystem. -jversion.h Version information. - -Applications using the library should include jpeglib.h (which in turn -includes jconfig.h and jmorecfg.h). Optionally, jerror.h may be included -if the application needs to reference individual JPEG error codes. The -other include files are intended for internal use and would not normally -be included by an application program. (cjpeg/djpeg/etc do use jinclude.h, -since its function is to improve portability of the whole IJG distribution. -Most other applications will directly include the system include files they -want, and hence won't need jinclude.h.) - - -C source code files: - -These files contain most of the functions intended to be called directly by -an application program: - -jcapimin.c Application program interface: core routines for compression. -jcapistd.c Application program interface: standard compression. -jdapimin.c Application program interface: core routines for decompression. -jdapistd.c Application program interface: standard decompression. -jcomapi.c Application program interface routines common to compression - and decompression. -jcparam.c Compression parameter setting helper routines. -jctrans.c API and library routines for transcoding compression. -jdtrans.c API and library routines for transcoding decompression. - -Compression side of the library: - -jcinit.c Initialization: determines which other modules to use. -jcmaster.c Master control: setup and inter-pass sequencing logic. -jcmainct.c Main buffer controller (preprocessor => JPEG compressor). -jcprepct.c Preprocessor buffer controller. -jccoefct.c Buffer controller for DCT coefficient buffer. -jccolor.c Color space conversion. -jcsample.c Downsampling. -jcdctmgr.c DCT manager (DCT implementation selection & control). -jfdctint.c Forward DCT using slow-but-accurate integer method. -jfdctfst.c Forward DCT using faster, less accurate integer method. -jfdctflt.c Forward DCT using floating-point arithmetic. -jchuff.c Huffman entropy coding. -jcarith.c Arithmetic entropy coding. -jcmarker.c JPEG marker writing. -jdatadst.c Data destination managers for memory and stdio output. - -Decompression side of the library: - -jdmaster.c Master control: determines which other modules to use. -jdinput.c Input controller: controls input processing modules. -jdmainct.c Main buffer controller (JPEG decompressor => postprocessor). -jdcoefct.c Buffer controller for DCT coefficient buffer. -jdpostct.c Postprocessor buffer controller. -jdmarker.c JPEG marker reading. -jdhuff.c Huffman entropy decoding. -jdarith.c Arithmetic entropy decoding. -jddctmgr.c IDCT manager (IDCT implementation selection & control). -jidctint.c Inverse DCT using slow-but-accurate integer method. -jidctfst.c Inverse DCT using faster, less accurate integer method. -jidctflt.c Inverse DCT using floating-point arithmetic. -jdsample.c Upsampling. -jdcolor.c Color space conversion. -jdmerge.c Merged upsampling/color conversion (faster, lower quality). -jquant1.c One-pass color quantization using a fixed-spacing colormap. -jquant2.c Two-pass color quantization using a custom-generated colormap. - Also handles one-pass quantization to an externally given map. -jdatasrc.c Data source managers for memory and stdio input. - -Support files for both compression and decompression: - -jaricom.c Tables for common use in arithmetic entropy encoding and - decoding routines. -jerror.c Standard error handling routines (application replaceable). -jmemmgr.c System-independent (more or less) memory management code. -jutils.c Miscellaneous utility routines. - -jmemmgr.c relies on a system-dependent memory management module. The IJG -distribution includes the following implementations of the system-dependent -module: - -jmemnobs.c "No backing store": assumes adequate virtual memory exists. -jmemansi.c Makes temporary files with ANSI-standard routine tmpfile(). -jmemname.c Makes temporary files with program-generated file names. -jmemdos.c Custom implementation for MS-DOS (16-bit environment only): - can use extended and expanded memory as well as temp files. -jmemmac.c Custom implementation for Apple Macintosh. - -Exactly one of the system-dependent modules should be configured into an -installed JPEG library (see install.txt for hints about which one to use). -On unusual systems you may find it worthwhile to make a special -system-dependent memory manager. - - -Non-C source code files: - -jmemdosa.asm 80x86 assembly code support for jmemdos.c; used only in - MS-DOS-specific configurations of the JPEG library. - - -CJPEG/DJPEG/JPEGTRAN -==================== - -Include files: - -cdjpeg.h Declarations shared by cjpeg/djpeg/jpegtran modules. -cderror.h Additional error and trace message codes for cjpeg et al. -transupp.h Declarations for jpegtran support routines in transupp.c. - -C source code files: - -cjpeg.c Main program for cjpeg. -djpeg.c Main program for djpeg. -jpegtran.c Main program for jpegtran. -cdjpeg.c Utility routines used by all three programs. -rdcolmap.c Code to read a colormap file for djpeg's "-map" switch. -rdswitch.c Code to process some of cjpeg's more complex switches. - Also used by jpegtran. -transupp.c Support code for jpegtran: lossless image manipulations. - -Image file reader modules for cjpeg: - -rdbmp.c BMP file input. -rdgif.c GIF file input (now just a stub). -rdppm.c PPM/PGM file input. -rdrle.c Utah RLE file input. -rdtarga.c Targa file input. - -Image file writer modules for djpeg: - -wrbmp.c BMP file output. -wrgif.c GIF file output (a mere shadow of its former self). -wrppm.c PPM/PGM file output. -wrrle.c Utah RLE file output. -wrtarga.c Targa file output. - - -RDJPGCOM/WRJPGCOM -================= - -C source code files: - -rdjpgcom.c Stand-alone rdjpgcom application. -wrjpgcom.c Stand-alone wrjpgcom application. - -These programs do not depend on the IJG library. They do use -jconfig.h and jinclude.h, only to improve portability. - - -ADDITIONAL FILES -================ - -Documentation (see README for a guide to the documentation files): - -README Master documentation file. -*.txt Other documentation files. -*.1 Documentation in Unix man page format. -change.log Version-to-version change highlights. -example.c Sample code for calling JPEG library. - -Configuration/installation files and programs (see install.txt for more info): - -configure Unix shell script to perform automatic configuration. -configure.ac Source file for use with Autoconf to generate configure. -ltmain.sh Support scripts for configure (from GNU libtool). -config.guess -config.sub -depcomp -missing -install-sh Install shell script for those Unix systems lacking one. -Makefile.in Makefile input for configure. -Makefile.am Source file for use with Automake to generate Makefile.in. -ckconfig.c Program to generate jconfig.h on non-Unix systems. -jconfig.txt Template for making jconfig.h by hand. -mak*.* Sample makefiles for particular systems. -jconfig.* Sample jconfig.h for particular systems. -libjpeg.map Script to generate shared library with versioned symbols. -aclocal.m4 M4 macro definitions for use with Autoconf. -ansi2knr.c De-ANSIfier for pre-ANSI C compilers (courtesy of - L. Peter Deutsch and Aladdin Enterprises). - -Test files (see install.txt for test procedure): - -test*.* Source and comparison files for confidence test. - These are binary image files, NOT text files. diff --git a/jpeg/install-sh b/jpeg/install-sh deleted file mode 100755 index a9244eb..0000000 --- a/jpeg/install-sh +++ /dev/null @@ -1,527 +0,0 @@ -#!/bin/sh -# install - install a program, script, or datafile - -scriptversion=2011-01-19.21; # UTC - -# This originates from X11R5 (mit/util/scripts/install.sh), which was -# later released in X11R6 (xc/config/util/install.sh) with the -# following copyright and license. -# -# Copyright (C) 1994 X Consortium -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to -# deal in the Software without restriction, including without limitation the -# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -# sell copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- -# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -# -# Except as contained in this notice, the name of the X Consortium shall not -# be used in advertising or otherwise to promote the sale, use or other deal- -# ings in this Software without prior written authorization from the X Consor- -# tium. -# -# -# FSF changes to this file are in the public domain. -# -# Calling this script install-sh is preferred over install.sh, to prevent -# `make' implicit rules from creating a file called install from it -# when there is no Makefile. -# -# This script is compatible with the BSD install script, but was written -# from scratch. - -nl=' -' -IFS=" "" $nl" - -# set DOITPROG to echo to test this script - -# Don't use :- since 4.3BSD and earlier shells don't like it. -doit=${DOITPROG-} -if test -z "$doit"; then - doit_exec=exec -else - doit_exec=$doit -fi - -# Put in absolute file names if you don't have them in your path; -# or use environment vars. - -chgrpprog=${CHGRPPROG-chgrp} -chmodprog=${CHMODPROG-chmod} -chownprog=${CHOWNPROG-chown} -cmpprog=${CMPPROG-cmp} -cpprog=${CPPROG-cp} -mkdirprog=${MKDIRPROG-mkdir} -mvprog=${MVPROG-mv} -rmprog=${RMPROG-rm} -stripprog=${STRIPPROG-strip} - -posix_glob='?' -initialize_posix_glob=' - test "$posix_glob" != "?" || { - if (set -f) 2>/dev/null; then - posix_glob= - else - posix_glob=: - fi - } -' - -posix_mkdir= - -# Desired mode of installed file. -mode=0755 - -chgrpcmd= -chmodcmd=$chmodprog -chowncmd= -mvcmd=$mvprog -rmcmd="$rmprog -f" -stripcmd= - -src= -dst= -dir_arg= -dst_arg= - -copy_on_change=false -no_target_directory= - -usage="\ -Usage: $0 [OPTION]... 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In this case, the final cleanup might fail but the new - # file should still install successfully. - { - test ! -f "$dst" || - $doit $rmcmd -f "$dst" 2>/dev/null || - { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && - { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } - } || - { echo "$0: cannot unlink or rename $dst" >&2 - (exit 1); exit 1 - } - } && - - # Now rename the file to the real destination. - $doit $mvcmd "$dsttmp" "$dst" - } - fi || exit 1 - - trap '' 0 - fi -done - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpeg/install.txt b/jpeg/install.txt deleted file mode 100755 index 04bed91..0000000 --- a/jpeg/install.txt +++ /dev/null @@ -1,1096 +0,0 @@ -INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software - -Copyright (C) 1991-2011, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file explains how to configure and install the IJG software. We have -tried to make this software extremely portable and flexible, so that it can be -adapted to almost any environment. The downside of this decision is that the -installation process is complicated. We have provided shortcuts to simplify -the task on common systems. But in any case, you will need at least a little -familiarity with C programming and program build procedures for your system. - -If you are only using this software as part of a larger program, the larger -program's installation procedure may take care of configuring the IJG code. -For example, Ghostscript's installation script will configure the IJG code. -You don't need to read this file if you just want to compile Ghostscript. - -If you are on a Unix machine, you may not need to read this file at all. -Try doing - ./configure - make - make test -If that doesn't complain, do - make install -(better do "make -n install" first to see if the makefile will put the files -where you want them). Read further if you run into snags or want to customize -the code for your system. - - -TABLE OF CONTENTS ------------------ - -Before you start -Configuring the software: - using the automatic "configure" script - using one of the supplied jconfig and makefile files - by hand -Building the software -Testing the software -Installing the software -Optional stuff -Optimization -Hints for specific systems - - -BEFORE YOU START -================ - -Before installing the software you must unpack the distributed source code. -Since you are reading this file, you have probably already succeeded in this -task. However, there is a potential for error if you needed to convert the -files to the local standard text file format (for example, if you are on -MS-DOS you may have converted LF end-of-line to CR/LF). You must apply -such conversion to all the files EXCEPT those whose names begin with "test". -The test files contain binary data; if you change them in any way then the -self-test will give bad results. - -Please check the last section of this file to see if there are hints for the -specific machine or compiler you are using. - - -CONFIGURING THE SOFTWARE -======================== - -To configure the IJG code for your system, you need to create two files: - * jconfig.h: contains values for system-dependent #define symbols. - * Makefile: controls the compilation process. -(On a non-Unix machine, you may create "project files" or some other -substitute for a Makefile. jconfig.h is needed in any environment.) - -We provide three different ways to generate these files: - * On a Unix system, you can just run the "configure" script. - * We provide sample jconfig files and makefiles for popular machines; - if your machine matches one of the samples, just copy the right sample - files to jconfig.h and Makefile. - * If all else fails, read the instructions below and make your own files. - - -Configuring the software using the automatic "configure" script ---------------------------------------------------------------- - -If you are on a Unix machine, you can just type - ./configure -and let the configure script construct appropriate configuration files. -If you're using "csh" on an old version of System V, you might need to type - sh configure -instead to prevent csh from trying to execute configure itself. -Expect configure to run for a few minutes, particularly on slower machines; -it works by compiling a series of test programs. - -Configure was created with GNU Autoconf and it follows the usual conventions -for GNU configure scripts. It makes a few assumptions that you may want to -override. You can do this by providing optional switches to configure: - -* Configure will build both static and shared libraries, if possible. -If you want to build libjpeg only as a static library, say - ./configure --disable-shared -If you want to build libjpeg only as a shared library, say - ./configure --disable-static -Configure uses GNU libtool to take care of system-dependent shared library -building methods. - -* Configure will use gcc (GNU C compiler) if it's available, otherwise cc. -To force a particular compiler to be selected, use the CC option, for example - ./configure CC='cc' -The same method can be used to include any unusual compiler switches. -For example, on HP-UX you probably want to say - ./configure CC='cc -Aa' -to get HP's compiler to run in ANSI mode. - -* The default CFLAGS setting is "-g" for non-gcc compilers, "-g -O2" for gcc. -You can override this by saying, for example, - ./configure CFLAGS='-O2' -if you want to compile without debugging support. - -* Configure will set up the makefile so that "make install" will install files -into /usr/local/bin, /usr/local/man, etc. You can specify an installation -prefix other than "/usr/local" by giving configure the option "--prefix=PATH". - -* If you don't have a lot of swap space, you may need to enable the IJG -software's internal virtual memory mechanism. To do this, give the option -"--enable-maxmem=N" where N is the default maxmemory limit in megabytes. -This is discussed in more detail under "Selecting a memory manager", below. -You probably don't need to worry about this on reasonably-sized Unix machines, -unless you plan to process very large images. - -Configure has some other features that are useful if you are cross-compiling -or working in a network of multiple machine types; but if you need those -features, you probably already know how to use them. - - -Configuring the software using one of the supplied jconfig and makefile files ------------------------------------------------------------------------------ - -If you have one of these systems, you can just use the provided configuration -files: - -Makefile jconfig file System and/or compiler - -makefile.manx jconfig.manx Amiga, Manx Aztec C -makefile.sas jconfig.sas Amiga, SAS C -makeproj.mac jconfig.mac Apple Macintosh, Metrowerks CodeWarrior -mak*jpeg.st jconfig.st Atari ST/STE/TT, Pure C or Turbo C -makefile.bcc jconfig.bcc MS-DOS or OS/2, Borland C -makefile.dj jconfig.dj MS-DOS, DJGPP (Delorie's port of GNU C) -makefile.mc6 jconfig.mc6 MS-DOS, Microsoft C (16-bit only) -makefile.wat jconfig.wat MS-DOS, OS/2, or Windows NT, Watcom C -makefile.vc jconfig.vc Windows NT/95, MS Visual C++ -make*.vc6 jconfig.vc Windows NT/95, MS Visual C++ 6 -make*.v10 jconfig.vc Windows NT/95, MS Visual C++ 2010 (v10) -makefile.mms jconfig.vms Digital VMS, with MMS software -makefile.vms jconfig.vms Digital VMS, without MMS software - -Copy the proper jconfig file to jconfig.h and the makefile to Makefile (or -whatever your system uses as the standard makefile name). For more info see -the appropriate system-specific hints section near the end of this file. - - -Configuring the software by hand --------------------------------- - -First, generate a jconfig.h file. If you are moderately familiar with C, -the comments in jconfig.txt should be enough information to do this; just -copy jconfig.txt to jconfig.h and edit it appropriately. Otherwise, you may -prefer to use the ckconfig.c program. You will need to compile and execute -ckconfig.c by hand --- we hope you know at least enough to do that. -ckconfig.c may not compile the first try (in fact, the whole idea is for it -to fail if anything is going to). If you get compile errors, fix them by -editing ckconfig.c according to the directions given in ckconfig.c. Once -you get it to run, it will write a suitable jconfig.h file, and will also -print out some advice about which makefile to use. - -You may also want to look at the canned jconfig files, if there is one for a -system similar to yours. - -Second, select a makefile and copy it to Makefile (or whatever your system -uses as the standard makefile name). The most generic makefiles we provide -are - makefile.ansi: if your C compiler supports function prototypes - makefile.unix: if not. -(You have function prototypes if ckconfig.c put "#define HAVE_PROTOTYPES" -in jconfig.h.) You may want to start from one of the other makefiles if -there is one for a system similar to yours. - -Look over the selected Makefile and adjust options as needed. In particular -you may want to change the CC and CFLAGS definitions. For instance, if you -are using GCC, set CC=gcc. If you had to use any compiler switches to get -ckconfig.c to work, make sure the same switches are in CFLAGS. - -If you are on a system that doesn't use makefiles, you'll need to set up -project files (or whatever you do use) to compile all the source files and -link them into executable files cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom. -See the file lists in any of the makefiles to find out which files go into -each program. Note that the provided makefiles all make a "library" file -libjpeg first, but you don't have to do that if you don't want to; the file -lists identify which source files are actually needed for compression, -decompression, or both. As a last resort, you can make a batch script that -just compiles everything and links it all together; makefile.vms is an example -of this (it's for VMS systems that have no make-like utility). - -Here are comments about some specific configuration decisions you'll -need to make: - -Command line style ------------------- - -These programs can use a Unix-like command line style which supports -redirection and piping, like this: - cjpeg inputfile >outputfile - cjpeg outputfile - source program | cjpeg >outputfile -The simpler "two file" command line style is just - cjpeg inputfile outputfile -You may prefer the two-file style, particularly if you don't have pipes. - -You MUST use two-file style on any system that doesn't cope well with binary -data fed through stdin/stdout; this is true for some MS-DOS compilers, for -example. If you're not on a Unix system, it's safest to assume you need -two-file style. (But if your compiler provides either the Posix-standard -fdopen() library routine or a Microsoft-compatible setmode() routine, you -can safely use the Unix command line style, by defining USE_FDOPEN or -USE_SETMODE respectively.) - -To use the two-file style, make jconfig.h say "#define TWO_FILE_COMMANDLINE". - -Selecting a memory manager --------------------------- - -The IJG code is capable of working on images that are too big to fit in main -memory; data is swapped out to temporary files as necessary. However, the -code to do this is rather system-dependent. We provide five different -memory managers: - -* jmemansi.c This version uses the ANSI-standard library routine tmpfile(), - which not all non-ANSI systems have. On some systems - tmpfile() may put the temporary file in a non-optimal - location; if you don't like what it does, use jmemname.c. - -* jmemname.c This version creates named temporary files. For anything - except a Unix machine, you'll need to configure the - select_file_name() routine appropriately; see the comments - near the head of jmemname.c. If you use this version, define - NEED_SIGNAL_CATCHER in jconfig.h to make sure the temp files - are removed if the program is aborted. - -* jmemnobs.c (That stands for No Backing Store :-).) This will compile on - almost any system, but it assumes you have enough main memory - or virtual memory to hold the biggest images you work with. - -* jmemdos.c This should be used with most 16-bit MS-DOS compilers. - See the system-specific notes about MS-DOS for more info. - IMPORTANT: if you use this, define USE_MSDOS_MEMMGR in - jconfig.h, and include the assembly file jmemdosa.asm in the - programs. The supplied makefiles and jconfig files for - 16-bit MS-DOS compilers already do both. - -* jmemmac.c Custom version for Apple Macintosh; see the system-specific - notes for Macintosh for more info. - -To use a particular memory manager, change the SYSDEPMEM variable in your -makefile to equal the corresponding object file name (for example, jmemansi.o -or jmemansi.obj for jmemansi.c). - -If you have plenty of (real or virtual) main memory, just use jmemnobs.c. -"Plenty" means about ten bytes for every pixel in the largest images -you plan to process, so a lot of systems don't meet this criterion. -If yours doesn't, try jmemansi.c first. If that doesn't compile, you'll have -to use jmemname.c; be sure to adjust select_file_name() for local conditions. -You may also need to change unlink() to remove() in close_backing_store(). - -Except with jmemnobs.c or jmemmac.c, you need to adjust the DEFAULT_MAX_MEM -setting to a reasonable value for your system (either by adding a #define for -DEFAULT_MAX_MEM to jconfig.h, or by adding a -D switch to the Makefile). -This value limits the amount of data space the program will attempt to -allocate. Code and static data space isn't counted, so the actual memory -needs for cjpeg or djpeg are typically 100 to 150Kb more than the max-memory -setting. Larger max-memory settings reduce the amount of I/O needed to -process a large image, but too large a value can result in "insufficient -memory" failures. On most Unix machines (and other systems with virtual -memory), just set DEFAULT_MAX_MEM to several million and forget it. At the -other end of the spectrum, for MS-DOS machines you probably can't go much -above 300K to 400K. (On MS-DOS the value refers to conventional memory only. -Extended/expanded memory is handled separately by jmemdos.c.) - - -BUILDING THE SOFTWARE -===================== - -Now you should be able to compile the software. Just say "make" (or -whatever's necessary to start the compilation). Have a cup of coffee. - -Here are some things that could go wrong: - -If your compiler complains about undefined structures, you should be able to -shut it up by putting "#define INCOMPLETE_TYPES_BROKEN" in jconfig.h. - -If you have trouble with missing system include files or inclusion of the -wrong ones, read jinclude.h. This shouldn't happen if you used configure -or ckconfig.c to set up jconfig.h. - -There are a fair number of routines that do not use all of their parameters; -some compilers will issue warnings about this, which you can ignore. There -are also a few configuration checks that may give "unreachable code" warnings. -Any other warning deserves investigation. - -If you don't have a getenv() library routine, define NO_GETENV. - -Also see the system-specific hints, below. - - -TESTING THE SOFTWARE -==================== - -As a quick test of functionality we've included a small sample image in -several forms: - testorig.jpg Starting point for the djpeg tests. - testimg.ppm The output of djpeg testorig.jpg - testimg.bmp The output of djpeg -bmp -colors 256 testorig.jpg - testimg.jpg The output of cjpeg testimg.ppm - testprog.jpg Progressive-mode equivalent of testorig.jpg. - testimgp.jpg The output of cjpeg -progressive -optimize testimg.ppm -(The first- and second-generation .jpg files aren't identical since the -default compression parameters are lossy.) If you can generate duplicates -of the testimg* files then you probably have working programs. - -With most of the makefiles, "make test" will perform the necessary -comparisons. - -If you're using a makefile that doesn't provide the test option, run djpeg -and cjpeg by hand and compare the output files to testimg* with whatever -binary file comparison tool you have. The files should be bit-for-bit -identical. - -If the programs complain "MAX_ALLOC_CHUNK is wrong, please fix", then you -need to reduce MAX_ALLOC_CHUNK to a value that fits in type size_t. -Try adding "#define MAX_ALLOC_CHUNK 65520L" to jconfig.h. A less likely -configuration error is "ALIGN_TYPE is wrong, please fix": defining ALIGN_TYPE -as long should take care of that one. - -If the cjpeg test run fails with "Missing Huffman code table entry", it's a -good bet that you needed to define RIGHT_SHIFT_IS_UNSIGNED. Go back to the -configuration step and run ckconfig.c. (This is a good plan for any other -test failure, too.) - -If you are using Unix (one-file) command line style on a non-Unix system, -it's a good idea to check that binary I/O through stdin/stdout actually -works. You should get the same results from "djpeg out.ppm" -as from "djpeg -outfile out.ppm testorig.jpg". Note that the makefiles all -use the latter style and therefore do not exercise stdin/stdout! If this -check fails, try recompiling with USE_SETMODE or USE_FDOPEN defined. -If it still doesn't work, better use two-file style. - -If you chose a memory manager other than jmemnobs.c, you should test that -temporary-file usage works. Try "djpeg -bmp -colors 256 -max 0 testorig.jpg" -and make sure its output matches testimg.bmp. If you have any really large -images handy, try compressing them with -optimize and/or decompressing with --colors 256 to make sure your DEFAULT_MAX_MEM setting is not too large. - -NOTE: this is far from an exhaustive test of the JPEG software; some modules, -such as 1-pass color quantization, are not exercised at all. It's just a -quick test to give you some confidence that you haven't missed something -major. - - -INSTALLING THE SOFTWARE -======================= - -Once you're done with the above steps, you can install the software by -copying the executable files (cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom) -to wherever you normally install programs. On Unix systems, you'll also want -to put the man pages (cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1) -in the man-page directory. The pre-fab makefiles don't support this step -since there's such a wide variety of installation procedures on different -systems. - -If you generated a Makefile with the "configure" script, you can just say - make install -to install the programs and their man pages into the standard places. -(You'll probably need to be root to do this.) We recommend first saying - make -n install -to see where configure thought the files should go. You may need to edit -the Makefile, particularly if your system's conventions for man page -filenames don't match what configure expects. - -If you want to install the IJG library itself, for use in compiling other -programs besides ours, then you need to put the four include files - jpeglib.h jerror.h jconfig.h jmorecfg.h -into your include-file directory, and put the library file libjpeg.a -(extension may vary depending on system) wherever library files go. -If you generated a Makefile with "configure", it will do what it thinks -is the right thing if you say - make install-lib - - -OPTIONAL STUFF -============== - -Progress monitor: - -If you like, you can #define PROGRESS_REPORT (in jconfig.h) to enable display -of percent-done progress reports. The routine provided in cdjpeg.c merely -prints percentages to stderr, but you can customize it to do something -fancier. - -Utah RLE file format support: - -We distribute the software with support for RLE image files (Utah Raster -Toolkit format) disabled, because the RLE support won't compile without the -Utah library. If you have URT version 3.1 or later, you can enable RLE -support as follows: - 1. #define RLE_SUPPORTED in jconfig.h. - 2. Add a -I option to CFLAGS in the Makefile for the directory - containing the URT .h files (typically the "include" - subdirectory of the URT distribution). - 3. Add -L... -lrle to LDLIBS in the Makefile, where ... specifies - the directory containing the URT "librle.a" file (typically the - "lib" subdirectory of the URT distribution). - -Support for 12-bit-deep pixel data: - -The JPEG standard allows either 8-bit or 12-bit data precision. (For color, -this means 8 or 12 bits per channel, of course.) If you need to work with -deeper than 8-bit data, you can compile the IJG code for 12-bit operation. -To do so: - 1. In jmorecfg.h, define BITS_IN_JSAMPLE as 12 rather than 8. - 2. In jconfig.h, undefine BMP_SUPPORTED, RLE_SUPPORTED, and TARGA_SUPPORTED, - because the code for those formats doesn't handle 12-bit data and won't - even compile. (The PPM code does work, as explained below. The GIF - code works too; it scales 8-bit GIF data to and from 12-bit depth - automatically.) - 3. Compile. Don't expect "make test" to pass, since the supplied test - files are for 8-bit data. - -Currently, 12-bit support does not work on 16-bit-int machines. - -Note that a 12-bit version will not read 8-bit JPEG files, nor vice versa; -so you'll want to keep around a regular 8-bit compilation as well. -(Run-time selection of data depth, to allow a single copy that does both, -is possible but would probably slow things down considerably; it's very low -on our to-do list.) - -The PPM reader (rdppm.c) can read 12-bit data from either text-format or -binary-format PPM and PGM files. Binary-format PPM/PGM files which have a -maxval greater than 255 are assumed to use 2 bytes per sample, MSB first -(big-endian order). As of early 1995, 2-byte binary format is not -officially supported by the PBMPLUS library, but it is expected that a -future release of PBMPLUS will support it. Note that the PPM reader will -read files of any maxval regardless of the BITS_IN_JSAMPLE setting; incoming -data is automatically rescaled to either maxval=255 or maxval=4095 as -appropriate for the cjpeg bit depth. - -The PPM writer (wrppm.c) will normally write 2-byte binary PPM or PGM -format, maxval 4095, when compiled with BITS_IN_JSAMPLE=12. Since this -format is not yet widely supported, you can disable it by compiling wrppm.c -with PPM_NORAWWORD defined; then the data is scaled down to 8 bits to make a -standard 1-byte/sample PPM or PGM file. (Yes, this means still another copy -of djpeg to keep around. But hopefully you won't need it for very long. -Poskanzer's supposed to get that new PBMPLUS release out Real Soon Now.) - -Of course, if you are working with 12-bit data, you probably have it stored -in some other, nonstandard format. In that case you'll probably want to -write your own I/O modules to read and write your format. - -Note that a 12-bit version of cjpeg always runs in "-optimize" mode, in -order to generate valid Huffman tables. This is necessary because our -default Huffman tables only cover 8-bit data. - -Removing code: - -If you need to make a smaller version of the JPEG software, some optional -functions can be removed at compile time. See the xxx_SUPPORTED #defines in -jconfig.h and jmorecfg.h. If at all possible, we recommend that you leave in -decoder support for all valid JPEG files, to ensure that you can read anyone's -output. Taking out support for image file formats that you don't use is the -most painless way to make the programs smaller. Another possibility is to -remove some of the DCT methods: in particular, the "IFAST" method may not be -enough faster than the others to be worth keeping on your machine. (If you -do remove ISLOW or IFAST, be sure to redefine JDCT_DEFAULT or JDCT_FASTEST -to a supported method, by adding a #define in jconfig.h.) - - -OPTIMIZATION -============ - -Unless you own a Cray, you'll probably be interested in making the JPEG -software go as fast as possible. This section covers some machine-dependent -optimizations you may want to try. We suggest that before trying any of -this, you first get the basic installation to pass the self-test step. -Repeat the self-test after any optimization to make sure that you haven't -broken anything. - -The integer DCT routines perform a lot of multiplications. These -multiplications must yield 32-bit results, but none of their input values -are more than 16 bits wide. On many machines, notably the 680x0 and 80x86 -CPUs, a 16x16=>32 bit multiply instruction is faster than a full 32x32=>32 -bit multiply. Unfortunately there is no portable way to specify such a -multiplication in C, but some compilers can generate one when you use the -right combination of casts. See the MULTIPLYxxx macro definitions in -jdct.h. If your compiler makes "int" be 32 bits and "short" be 16 bits, -defining SHORTxSHORT_32 is fairly likely to work. When experimenting with -alternate definitions, be sure to test not only whether the code still works -(use the self-test), but also whether it is actually faster --- on some -compilers, alternate definitions may compute the right answer, yet be slower -than the default. Timing cjpeg on a large PGM (grayscale) input file is the -best way to check this, as the DCT will be the largest fraction of the runtime -in that mode. (Note: some of the distributed compiler-specific jconfig files -already contain #define switches to select appropriate MULTIPLYxxx -definitions.) - -If your machine has sufficiently fast floating point hardware, you may find -that the float DCT method is faster than the integer DCT methods, even -after tweaking the integer multiply macros. In that case you may want to -make the float DCT be the default method. (The only objection to this is -that float DCT results may vary slightly across machines.) To do that, add -"#define JDCT_DEFAULT JDCT_FLOAT" to jconfig.h. Even if you don't change -the default, you should redefine JDCT_FASTEST, which is the method selected -by djpeg's -fast switch. Don't forget to update the documentation files -(usage.txt and/or cjpeg.1, djpeg.1) to agree with what you've done. - -If access to "short" arrays is slow on your machine, it may be a win to -define type JCOEF as int rather than short. This will cost a good deal of -memory though, particularly in some multi-pass modes, so don't do it unless -you have memory to burn and short is REALLY slow. - -If your compiler can compile function calls in-line, make sure the INLINE -macro in jmorecfg.h is defined as the keyword that marks a function -inline-able. Some compilers have a switch that tells the compiler to inline -any function it thinks is profitable (e.g., -finline-functions for gcc). -Enabling such a switch is likely to make the compiled code bigger but faster. - -In general, it's worth trying the maximum optimization level of your compiler, -and experimenting with any optional optimizations such as loop unrolling. -(Unfortunately, far too many compilers have optimizer bugs ... be prepared to -back off if the code fails self-test.) If you do any experimentation along -these lines, please report the optimal settings to jpeg-info@jpegclub.org so -we can mention them in future releases. Be sure to specify your machine and -compiler version. - - -HINTS FOR SPECIFIC SYSTEMS -========================== - -We welcome reports on changes needed for systems not mentioned here. Submit -'em to jpeg-info@jpegclub.org. Also, if configure or ckconfig.c is wrong -about how to configure the JPEG software for your system, please let us know. - - -Acorn RISC OS: - -(Thanks to Simon Middleton for these hints on compiling with Desktop C.) -After renaming the files according to Acorn conventions, take a copy of -makefile.ansi, change all occurrences of 'libjpeg.a' to 'libjpeg.o' and -change these definitions as indicated: - -CFLAGS= -throwback -IC: -Wn -LDLIBS=C:o.Stubs -SYSDEPMEM=jmemansi.o -LN=Link -AR=LibFile -c -o - -Also add a new line '.c.o:; $(cc) $< $(cflags) -c -o $@'. Remove the -lines '$(RM) libjpeg.o' and '$(AR2) libjpeg.o' and the 'jconfig.h' -dependency section. - -Copy jconfig.txt to jconfig.h. Edit jconfig.h to define TWO_FILE_COMMANDLINE -and CHAR_IS_UNSIGNED. - -Run the makefile using !AMU not !Make. If you want to use the 'clean' and -'test' makefile entries then you will have to fiddle with the syntax a bit -and rename the test files. - - -Amiga: - -SAS C 6.50 reportedly is too buggy to compile the IJG code properly. -A patch to update to 6.51 is available from SAS or AmiNet FTP sites. - -The supplied config files are set up to use jmemname.c as the memory -manager, with temporary files being created on the device named by -"JPEGTMP:". - - -Atari ST/STE/TT: - -Copy the project files makcjpeg.st, makdjpeg.st, maktjpeg.st, and makljpeg.st -to cjpeg.prj, djpeg.prj, jpegtran.prj, and libjpeg.prj respectively. The -project files should work as-is with Pure C. For Turbo C, change library -filenames "pc..." to "tc..." in each project file. Note that libjpeg.prj -selects jmemansi.c as the recommended memory manager. You'll probably want to -adjust the DEFAULT_MAX_MEM setting --- you want it to be a couple hundred K -less than your normal free memory. Put "#define DEFAULT_MAX_MEM nnnn" into -jconfig.h to do this. - -To use the 68881/68882 coprocessor for the floating point DCT, add the -compiler option "-8" to the project files and replace pcfltlib.lib with -pc881lib.lib in cjpeg.prj and djpeg.prj. Or if you don't have a -coprocessor, you may prefer to remove the float DCT code by undefining -DCT_FLOAT_SUPPORTED in jmorecfg.h (since without a coprocessor, the float -code will be too slow to be useful). In that case, you can delete -pcfltlib.lib from the project files. - -Note that you must make libjpeg.lib before making cjpeg.ttp, djpeg.ttp, -or jpegtran.ttp. You'll have to perform the self-test by hand. - -We haven't bothered to include project files for rdjpgcom and wrjpgcom. -Those source files should just be compiled by themselves; they don't -depend on the JPEG library. You can use the default.prj project file -of the Pure C distribution to make the programs. - -There is a bug in some older versions of the Turbo C library which causes the -space used by temporary files created with "tmpfile()" not to be freed after -an abnormal program exit. If you check your disk afterwards, you will find -cluster chains that are allocated but not used by a file. This should not -happen in cjpeg/djpeg/jpegtran, since we enable a signal catcher to explicitly -close temp files before exiting. But if you use the JPEG library with your -own code, be sure to supply a signal catcher, or else use a different -system-dependent memory manager. - - -Cray: - -Should you be so fortunate as to be running JPEG on a Cray YMP, there is a -compiler bug in old versions of Cray's Standard C (prior to 3.1). If you -still have an old compiler, you'll need to insert a line reading -"#pragma novector" just before the loop - for (i = 1; i <= (int) htbl->bits[l]; i++) - huffsize[p++] = (char) l; -in fix_huff_tbl (in V5beta1, line 204 of jchuff.c and line 176 of jdhuff.c). -[This bug may or may not still occur with the current IJG code, but it's -probably a dead issue anyway...] - - -HP-UX: - -If you have HP-UX 7.05 or later with the "software development" C compiler, -you should run the compiler in ANSI mode. If using the configure script, -say - ./configure CC='cc -Aa' -(or -Ae if you prefer). If configuring by hand, use makefile.ansi and add -"-Aa" to the CFLAGS line in the makefile. - -If you have a pre-7.05 system, or if you are using the non-ANSI C compiler -delivered with a minimum HP-UX system, then you must use makefile.unix -(and do NOT add -Aa); or just run configure without the CC option. - -On HP 9000 series 800 machines, the HP C compiler is buggy in revisions prior -to A.08.07. If you get complaints about "not a typedef name", you'll have to -use makefile.unix, or run configure without the CC option. - - -Macintosh, generic comments: - -The supplied user-interface files (cjpeg.c, djpeg.c, etc) are set up to -provide a Unix-style command line interface. You can use this interface on -the Mac by means of the ccommand() library routine provided by Metrowerks -CodeWarrior or Think C. This is only appropriate for testing the library, -however; to make a user-friendly equivalent of cjpeg/djpeg you'd really want -to develop a Mac-style user interface. There isn't a complete example -available at the moment, but there are some helpful starting points: -1. Sam Bushell's free "To JPEG" applet provides drag-and-drop conversion to -JPEG under System 7 and later. This only illustrates how to use the -compression half of the library, but it does a very nice job of that part. -The CodeWarrior source code is available from http://www.pobox.com/~jsam. -2. Jim Brunner prepared a Mac-style user interface for both compression and -decompression. Unfortunately, it hasn't been updated since IJG v4, and -the library's API has changed considerably since then. Still it may be of -some help, particularly as a guide to compiling the IJG code under Think C. -Jim's code is available from the Info-Mac archives, at sumex-aim.stanford.edu -or mirrors thereof; see file /info-mac/dev/src/jpeg-convert-c.hqx. - -jmemmac.c is the recommended memory manager back end for Macintosh. It uses -NewPtr/DisposePtr instead of malloc/free, and has a Mac-specific -implementation of jpeg_mem_available(). It also creates temporary files that -follow Mac conventions. (That part of the code relies on System-7-or-later OS -functions. See the comments in jmemmac.c if you need to run it on System 6.) -NOTE that USE_MAC_MEMMGR must be defined in jconfig.h to use jmemmac.c. - -You can also use jmemnobs.c, if you don't care about handling images larger -than available memory. If you use any memory manager back end other than -jmemmac.c, we recommend replacing "malloc" and "free" by "NewPtr" and -"DisposePtr", because Mac C libraries often have peculiar implementations of -malloc/free. (For instance, free() may not return the freed space to the -Mac Memory Manager. This is undesirable for the IJG code because jmemmgr.c -already clumps space requests.) - - -Macintosh, Metrowerks CodeWarrior: - -The Unix-command-line-style interface can be used by defining USE_CCOMMAND. -You'll also need to define TWO_FILE_COMMANDLINE to avoid stdin/stdout. -This means that when using the cjpeg/djpeg programs, you'll have to type the -input and output file names in the "Arguments" text-edit box, rather than -using the file radio buttons. (Perhaps USE_FDOPEN or USE_SETMODE would -eliminate the problem, but I haven't heard from anyone who's tried it.) - -On 680x0 Macs, Metrowerks defines type "double" as a 10-byte IEEE extended -float. jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power -of 2. Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. - -The supplied configuration file jconfig.mac can be used for your jconfig.h; -it includes all the recommended symbol definitions. If you have AppleScript -installed, you can run the supplied script makeproj.mac to create CodeWarrior -project files for the library and the testbed applications, then build the -library and applications. (Thanks to Dan Sears and Don Agro for this nifty -hack, which saves us from trying to maintain CodeWarrior project files as part -of the IJG distribution...) - - -Macintosh, Think C: - -The documentation in Jim Brunner's "JPEG Convert" source code (see above) -includes detailed build instructions for Think C; it's probably somewhat -out of date for the current release, but may be helpful. - -If you want to build the minimal command line version, proceed as follows. -You'll have to prepare project files for the programs; we don't include any -in the distribution since they are not text files. Use the file lists in -any of the supplied makefiles as a guide. Also add the ANSI and Unix C -libraries in a separate segment. You may need to divide the JPEG files into -more than one segment; we recommend dividing compression and decompression -modules. Define USE_CCOMMAND in jconfig.h so that the ccommand() routine is -called. You must also define TWO_FILE_COMMANDLINE because stdin/stdout -don't handle binary data correctly. - -On 680x0 Macs, Think C defines type "double" as a 12-byte IEEE extended float. -jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power of 2. -Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint. - -jconfig.mac should work as a jconfig.h configuration file for Think C, -but the makeproj.mac AppleScript script is specific to CodeWarrior. Sorry. - - -MIPS R3000: - -MIPS's cc version 1.31 has a rather nasty optimization bug. Don't use -O -if you have that compiler version. (Use "cc -V" to check the version.) -Note that the R3000 chip is found in workstations from DEC and others. - - -MS-DOS, generic comments for 16-bit compilers: - -The IJG code is designed to work well in 80x86 "small" or "medium" memory -models (i.e., data pointers are 16 bits unless explicitly declared "far"; -code pointers can be either size). You may be able to use small model to -compile cjpeg or djpeg by itself, but you will probably have to use medium -model for any larger application. This won't make much difference in -performance. You *will* take a noticeable performance hit if you use a -large-data memory model, and you should avoid "huge" model if at all -possible. Be sure that NEED_FAR_POINTERS is defined in jconfig.h if you use -a small-data memory model; be sure it is NOT defined if you use a large-data -model. (The supplied makefiles and jconfig files for Borland and Microsoft C -compile in medium model and define NEED_FAR_POINTERS.) - -The DOS-specific memory manager, jmemdos.c, should be used if possible. -It needs some assembly-code routines which are in jmemdosa.asm; make sure -your makefile assembles that file and includes it in the library. If you -don't have a suitable assembler, you can get pre-assembled object files for -jmemdosa by FTP from ftp.uu.net:/graphics/jpeg/jdosaobj.zip. (DOS-oriented -distributions of the IJG source code often include these object files.) - -When using jmemdos.c, jconfig.h must define USE_MSDOS_MEMMGR and must set -MAX_ALLOC_CHUNK to less than 64K (65520L is a typical value). If your -C library's far-heap malloc() can't allocate blocks that large, reduce -MAX_ALLOC_CHUNK to whatever it can handle. - -If you can't use jmemdos.c for some reason --- for example, because you -don't have an assembler to assemble jmemdosa.asm --- you'll have to fall -back to jmemansi.c or jmemname.c. You'll probably still need to set -MAX_ALLOC_CHUNK in jconfig.h, because most DOS C libraries won't malloc() -more than 64K at a time. IMPORTANT: if you use jmemansi.c or jmemname.c, -you will have to compile in a large-data memory model in order to get the -right stdio library. Too bad. - -wrjpgcom needs to be compiled in large model, because it malloc()s a 64KB -work area to hold the comment text. If your C library's malloc can't -handle that, reduce MAX_COM_LENGTH as necessary in wrjpgcom.c. - -Most MS-DOS compilers treat stdin/stdout as text files, so you must use -two-file command line style. But if your compiler has either fdopen() or -setmode(), you can use one-file style if you like. To do this, define -USE_SETMODE or USE_FDOPEN so that stdin/stdout will be set to binary mode. -(USE_SETMODE seems to work with more DOS compilers than USE_FDOPEN.) You -should test that I/O through stdin/stdout produces the same results as I/O -to explicitly named files... the "make test" procedures in the supplied -makefiles do NOT use stdin/stdout. - - -MS-DOS, generic comments for 32-bit compilers: - -None of the above comments about memory models apply if you are using a -32-bit flat-memory-space environment, such as DJGPP or Watcom C. (And you -should use one if you have it, as performance will be much better than -8086-compatible code!) For flat-memory-space compilers, do NOT define -NEED_FAR_POINTERS, and do NOT use jmemdos.c. Use jmemnobs.c if the -environment supplies adequate virtual memory, otherwise use jmemansi.c or -jmemname.c. - -You'll still need to be careful about binary I/O through stdin/stdout. -See the last paragraph of the previous section. - - -MS-DOS, Borland C: - -Be sure to convert all the source files to DOS text format (CR/LF newlines). -Although Borland C will often work OK with unmodified Unix (LF newlines) -source files, sometimes it will give bogus compile errors. -"Illegal character '#'" is the most common such error. (This is true with -Borland C 3.1, but perhaps is fixed in newer releases.) - -If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. -jconfig.bcc already includes #define USE_SETMODE to make this work. -(fdopen does not work correctly.) - - -MS-DOS, Microsoft C: - -makefile.mc6 works with Microsoft C, DOS Visual C++, etc. It should only -be used if you want to build a 16-bit (small or medium memory model) program. - -If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE. -jconfig.mc6 already includes #define USE_SETMODE to make this work. -(fdopen does not work correctly.) - -Note that this makefile assumes that the working copy of itself is called -"makefile". If you want to call it something else, say "makefile.mak", -be sure to adjust the dependency line that reads "$(RFILE) : makefile". -Otherwise the make will fail because it doesn't know how to create "makefile". -Worse, some releases of Microsoft's make utilities give an incorrect error -message in this situation. - -Old versions of MS C fail with an "out of macro expansion space" error -because they can't cope with the macro TRACEMS8 (defined in jerror.h). -If this happens to you, the easiest solution is to change TRACEMS8 to -expand to nothing. You'll lose the ability to dump out JPEG coefficient -tables with djpeg -debug -debug, but at least you can compile. - -Original MS C 6.0 is very buggy; it compiles incorrect code unless you turn -off optimization entirely (remove -O from CFLAGS). 6.00A is better, but it -still generates bad code if you enable loop optimizations (-Ol or -Ox). - -MS C 8.0 crashes when compiling jquant1.c with optimization switch /Oo ... -which is on by default. To work around this bug, compile that one file -with /Oo-. - - -Microsoft Windows (all versions), generic comments: - -Some Windows system include files define typedef boolean as "unsigned char". -The IJG code also defines typedef boolean, but we make it "int" by default. -This doesn't affect the IJG programs because we don't import those Windows -include files. But if you use the JPEG library in your own program, and some -of your program's files import one definition of boolean while some import the -other, you can get all sorts of mysterious problems. A good preventive step -is to make the IJG library use "unsigned char" for boolean. To do that, -add something like this to your jconfig.h file: - /* Define "boolean" as unsigned char, not int, per Windows custom */ - #ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ - typedef unsigned char boolean; - #endif - #define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -(This is already in jconfig.vc, by the way.) - -windef.h contains the declarations - #define far - #define FAR far -Since jmorecfg.h tries to define FAR as empty, you may get a compiler -warning if you include both jpeglib.h and windef.h (which windows.h -includes). To suppress the warning, you can put "#ifndef FAR"/"#endif" -around the line "#define FAR" in jmorecfg.h. -(Something like this is already in jmorecfg.h, by the way.) - -When using the library in a Windows application, you will almost certainly -want to modify or replace the error handler module jerror.c, since our -default error handler does a couple of inappropriate things: - 1. it tries to write error and warning messages on stderr; - 2. in event of a fatal error, it exits by calling exit(). - -A simple stopgap solution for problem 1 is to replace the line - fprintf(stderr, "%s\n", buffer); -(in output_message in jerror.c) with - MessageBox(GetActiveWindow(),buffer,"JPEG Error",MB_OK|MB_ICONERROR); -It's highly recommended that you at least do that much, since otherwise -error messages will disappear into nowhere. (Beginning with IJG v6b, this -code is already present in jerror.c; just define USE_WINDOWS_MESSAGEBOX in -jconfig.h to enable it.) - -The proper solution for problem 2 is to return control to your calling -application after a library error. This can be done with the setjmp/longjmp -technique discussed in libjpeg.txt and illustrated in example.c. (NOTE: -some older Windows C compilers provide versions of setjmp/longjmp that -don't actually work under Windows. You may need to use the Windows system -functions Catch and Throw instead.) - -The recommended memory manager under Windows is jmemnobs.c; in other words, -let Windows do any virtual memory management needed. You should NOT use -jmemdos.c nor jmemdosa.asm under Windows. - -For Windows 3.1, we recommend compiling in medium or large memory model; -for newer Windows versions, use a 32-bit flat memory model. (See the MS-DOS -sections above for more info about memory models.) In the 16-bit memory -models only, you'll need to put - #define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ -into jconfig.h to limit allocation chunks to 64Kb. (Without that, you'd -have to use huge memory model, which slows things down unnecessarily.) -jmemnobs.c works without modification in large or flat memory models, but to -use medium model, you need to modify its jpeg_get_large and jpeg_free_large -routines to allocate far memory. In any case, you might like to replace -its calls to malloc and free with direct calls on Windows memory allocation -functions. - -You may also want to modify jdatasrc.c and jdatadst.c to use Windows file -operations rather than fread/fwrite. This is only necessary if your C -compiler doesn't provide a competent implementation of C stdio functions. - -You might want to tweak the RGB_xxx macros in jmorecfg.h so that the library -will accept or deliver color pixels in BGR sample order, not RGB; BGR order -is usually more convenient under Windows. Note that this change will break -the sample applications cjpeg/djpeg, but the library itself works fine. - - -Many people want to convert the IJG library into a DLL. This is reasonably -straightforward, but watch out for the following: - - 1. Don't try to compile as a DLL in small or medium memory model; use -large model, or even better, 32-bit flat model. Many places in the IJG code -assume the address of a local variable is an ordinary (not FAR) pointer; -that isn't true in a medium-model DLL. - - 2. Microsoft C cannot pass file pointers between applications and DLLs. -(See Microsoft Knowledge Base, PSS ID Number Q50336.) So jdatasrc.c and -jdatadst.c don't work if you open a file in your application and then pass -the pointer to the DLL. One workaround is to make jdatasrc.c/jdatadst.c -part of your main application rather than part of the DLL. - - 3. You'll probably need to modify the macros GLOBAL() and EXTERN() to -attach suitable linkage keywords to the exported routine names. Similarly, -you'll want to modify METHODDEF() and JMETHOD() to ensure function pointers -are declared in a way that lets application routines be called back through -the function pointers. These macros are in jmorecfg.h. Typical definitions -for a 16-bit DLL are: - #define GLOBAL(type) type _far _pascal _loadds _export - #define EXTERN(type) extern type _far _pascal _loadds - #define METHODDEF(type) static type _far _pascal - #define JMETHOD(type,methodname,arglist) \ - type (_far _pascal *methodname) arglist -For a 32-bit DLL you may want something like - #define GLOBAL(type) __declspec(dllexport) type - #define EXTERN(type) extern __declspec(dllexport) type -Although not all the GLOBAL routines are actually intended to be called by -the application, the performance cost of making them all DLL entry points is -negligible. - -The unmodified IJG library presents a very C-specific application interface, -so the resulting DLL is only usable from C or C++ applications. There has -been some talk of writing wrapper code that would present a simpler interface -usable from other languages, such as Visual Basic. This is on our to-do list -but hasn't been very high priority --- any volunteers out there? - - -Microsoft Windows, Borland C: - -The provided jconfig.bcc should work OK in a 32-bit Windows environment, -but you'll need to tweak it in a 16-bit environment (you'd need to define -NEED_FAR_POINTERS and MAX_ALLOC_CHUNK). Beware that makefile.bcc will need -alteration if you want to use it for Windows --- in particular, you should -use jmemnobs.c not jmemdos.c under Windows. - -Borland C++ 4.5 fails with an internal compiler error when trying to compile -jdmerge.c in 32-bit mode. If enough people complain, perhaps Borland will fix -it. In the meantime, the simplest known workaround is to add a redundant -definition of the variable range_limit in h2v1_merged_upsample(), at the head -of the block that handles odd image width (about line 268 in v6 jdmerge.c): - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - register JSAMPLE * range_limit = cinfo->sample_range_limit; /* ADD THIS */ - cb = GETJSAMPLE(*inptr1); -Pretty bizarre, especially since the very similar routine h2v2_merged_upsample -doesn't trigger the bug. -Recent reports suggest that this bug does not occur with "bcc32a" (the -Pentium-optimized version of the compiler). - -Another report from a user of Borland C 4.5 was that incorrect code (leading -to a color shift in processed images) was produced if any of the following -optimization switch combinations were used: - -Ot -Og - -Ot -Op - -Ot -Om -So try backing off on optimization if you see such a problem. (Are there -several different releases all numbered "4.5"??) - - -Microsoft Windows, Microsoft Visual C++: - -jconfig.vc should work OK with any Microsoft compiler for a 32-bit memory -model. makefile.vc is intended for command-line use. (If you are using -the Developer Studio environment, you may prefer the DevStudio project -files; see below.) - -IJG JPEG 7 adds extern "C" to jpeglib.h. This avoids the need to put -extern "C" { ... } around #include "jpeglib.h" in your C++ application. -You can also force VC++ to treat the library as C++ code by renaming -all the *.c files to *.cpp (and adjusting the makefile to match). -In this case you also need to define the symbol DONT_USE_EXTERN_C in -the configuration to prevent jpeglib.h from using extern "C". - - -Microsoft Windows, Microsoft Visual C++ 6 Developer Studio: - -We include makefiles that should work as project files in DevStudio 6.0 or -later. There is a library makefile that builds the IJG library as a static -Win32 library, and application makefiles that build the sample applications -as Win32 console applications. (Even if you only want the library, we -recommend building the applications so that you can run the self-test.) - -To use: -1. Open the command prompt, change to the main directory and execute the - command line - NMAKE /f makefile.vc setup-vc6 - This will move jconfig.vc to jconfig.h and makefiles to project files. - (Note that the renaming is critical!) -2. Open the workspace file jpeg.dsw, build the library project. - (If you are using DevStudio more recent than 6.0, you'll probably - get a message saying that the project files are being updated.) -3. Open the workspace file apps.dsw, build the application projects. -4. To perform the self-test, execute the command line - NMAKE /f makefile.vc test-build -5. Move the application .exe files from `app`\Release to an - appropriate location on your path. - - -Microsoft Windows, Microsoft Visual C++ 2010 Developer Studio (v10): - -We include makefiles that should work as project files in Visual Studio -2010 or later. There is a library makefile that builds the IJG library -as a static Win32 library, and application makefiles that build the sample -applications as Win32 console applications. (Even if you only want the -library, we recommend building the applications so that you can run the -self-test.) - -To use: -1. Open the command prompt, change to the main directory and execute the - command line - NMAKE /f makefile.vc setup-v10 - This will move jconfig.vc to jconfig.h and makefiles to project files. - (Note that the renaming is critical!) -2. Open the solution file jpeg.sln, build the library project. - (If you are using Visual Studio more recent than 2010 (v10), you'll - probably get a message saying that the project files are being updated.) -3. Open the solution file apps.sln, build the application projects. -4. To perform the self-test, execute the command line - NMAKE /f makefile.vc test-build -5. Move the application .exe files from `app`\Release to an - appropriate location on your path. - -Note: -There seems to be an optimization bug in the compiler which causes the -self-test to fail with the color quantization option. -We have disabled optimization for the file jquant2.c in the library -project file which causes the self-test to pass properly. - - -OS/2, Borland C++: - -Watch out for optimization bugs in older Borland compilers; you may need -to back off the optimization switch settings. See the comments in -makefile.bcc. - - -SGI: - -On some SGI systems, you may need to set "AR2= ar -ts" in the Makefile. -If you are using configure, you can do this by saying - ./configure RANLIB='ar -ts' -This change is not needed on all SGIs. Use it only if the make fails at the -stage of linking the completed programs. - -On the MIPS R4000 architecture (Indy, etc.), the compiler option "-mips2" -reportedly speeds up the float DCT method substantially, enough to make it -faster than the default int method (but still slower than the fast int -method). If you use -mips2, you may want to alter the default DCT method to -be float. To do this, put "#define JDCT_DEFAULT JDCT_FLOAT" in jconfig.h. - - -VMS: - -On an Alpha/VMS system with MMS, be sure to use the "/Marco=Alpha=1" -qualifier with MMS when building the JPEG package. - -VAX/VMS v5.5-1 may have problems with the test step of the build procedure -reporting differences when it compares the original and test images. If the -error points to the last block of the files, it is most likely bogus and may -be safely ignored. It seems to be because the files are Stream_LF and -Backup/Compare has difficulty with the (presumably) null padded files. -This problem was not observed on VAX/VMS v6.1 or AXP/VMS v6.1. diff --git a/jpeg/jaricom.c b/jpeg/jaricom.c deleted file mode 100755 index 6900688..0000000 --- a/jpeg/jaricom.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * jaricom.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains probability estimation tables for common use in - * arithmetic entropy encoding and decoding routines. - * - * This data represents Table D.3 in the JPEG spec (D.2 in the draft), - * ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81, and Table 24 - * in the JBIG spec, ISO/IEC IS 11544 and CCITT Recommendation ITU-T T.82. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -/* The following #define specifies the packing of the four components - * into the compact INT32 representation. - * Note that this formula must match the actual arithmetic encoder - * and decoder implementation. The implementation has to be changed - * if this formula is changed. - * The current organization is leaned on Markus Kuhn's JBIG - * implementation (jbig_tab.c). - */ - -#define V(i,a,b,c,d) (((INT32)a << 16) | ((INT32)c << 8) | ((INT32)d << 7) | b) - -const INT32 jpeg_aritab[113+1] = { -/* - * Index, Qe_Value, Next_Index_LPS, Next_Index_MPS, Switch_MPS - */ - V( 0, 0x5a1d, 1, 1, 1 ), - V( 1, 0x2586, 14, 2, 0 ), - V( 2, 0x1114, 16, 3, 0 ), - V( 3, 0x080b, 18, 4, 0 ), - V( 4, 0x03d8, 20, 5, 0 ), - V( 5, 0x01da, 23, 6, 0 ), - V( 6, 0x00e5, 25, 7, 0 ), - V( 7, 0x006f, 28, 8, 0 ), - V( 8, 0x0036, 30, 9, 0 ), - V( 9, 0x001a, 33, 10, 0 ), - V( 10, 0x000d, 35, 11, 0 ), - V( 11, 0x0006, 9, 12, 0 ), - V( 12, 0x0003, 10, 13, 0 ), - V( 13, 0x0001, 12, 13, 0 ), - V( 14, 0x5a7f, 15, 15, 1 ), - V( 15, 0x3f25, 36, 16, 0 ), - V( 16, 0x2cf2, 38, 17, 0 ), - V( 17, 0x207c, 39, 18, 0 ), - V( 18, 0x17b9, 40, 19, 0 ), - V( 19, 0x1182, 42, 20, 0 ), - V( 20, 0x0cef, 43, 21, 0 ), - V( 21, 0x09a1, 45, 22, 0 ), - V( 22, 0x072f, 46, 23, 0 ), - V( 23, 0x055c, 48, 24, 0 ), - V( 24, 0x0406, 49, 25, 0 ), - V( 25, 0x0303, 51, 26, 0 ), - V( 26, 0x0240, 52, 27, 0 ), - V( 27, 0x01b1, 54, 28, 0 ), - V( 28, 0x0144, 56, 29, 0 ), - V( 29, 0x00f5, 57, 30, 0 ), - V( 30, 0x00b7, 59, 31, 0 ), - V( 31, 0x008a, 60, 32, 0 ), - V( 32, 0x0068, 62, 33, 0 ), - V( 33, 0x004e, 63, 34, 0 ), - V( 34, 0x003b, 32, 35, 0 ), - V( 35, 0x002c, 33, 9, 0 ), - V( 36, 0x5ae1, 37, 37, 1 ), - V( 37, 0x484c, 64, 38, 0 ), - V( 38, 0x3a0d, 65, 39, 0 ), - V( 39, 0x2ef1, 67, 40, 0 ), - V( 40, 0x261f, 68, 41, 0 ), - V( 41, 0x1f33, 69, 42, 0 ), - V( 42, 0x19a8, 70, 43, 0 ), - V( 43, 0x1518, 72, 44, 0 ), - V( 44, 0x1177, 73, 45, 0 ), - V( 45, 0x0e74, 74, 46, 0 ), - V( 46, 0x0bfb, 75, 47, 0 ), - V( 47, 0x09f8, 77, 48, 0 ), - V( 48, 0x0861, 78, 49, 0 ), - V( 49, 0x0706, 79, 50, 0 ), - V( 50, 0x05cd, 48, 51, 0 ), - V( 51, 0x04de, 50, 52, 0 ), - V( 52, 0x040f, 50, 53, 0 ), - V( 53, 0x0363, 51, 54, 0 ), - V( 54, 0x02d4, 52, 55, 0 ), - V( 55, 0x025c, 53, 56, 0 ), - V( 56, 0x01f8, 54, 57, 0 ), - V( 57, 0x01a4, 55, 58, 0 ), - V( 58, 0x0160, 56, 59, 0 ), - V( 59, 0x0125, 57, 60, 0 ), - V( 60, 0x00f6, 58, 61, 0 ), - V( 61, 0x00cb, 59, 62, 0 ), - V( 62, 0x00ab, 61, 63, 0 ), - V( 63, 0x008f, 61, 32, 0 ), - V( 64, 0x5b12, 65, 65, 1 ), - V( 65, 0x4d04, 80, 66, 0 ), - V( 66, 0x412c, 81, 67, 0 ), - V( 67, 0x37d8, 82, 68, 0 ), - V( 68, 0x2fe8, 83, 69, 0 ), - V( 69, 0x293c, 84, 70, 0 ), - V( 70, 0x2379, 86, 71, 0 ), - V( 71, 0x1edf, 87, 72, 0 ), - V( 72, 0x1aa9, 87, 73, 0 ), - V( 73, 0x174e, 72, 74, 0 ), - V( 74, 0x1424, 72, 75, 0 ), - V( 75, 0x119c, 74, 76, 0 ), - V( 76, 0x0f6b, 74, 77, 0 ), - V( 77, 0x0d51, 75, 78, 0 ), - V( 78, 0x0bb6, 77, 79, 0 ), - V( 79, 0x0a40, 77, 48, 0 ), - V( 80, 0x5832, 80, 81, 1 ), - V( 81, 0x4d1c, 88, 82, 0 ), - V( 82, 0x438e, 89, 83, 0 ), - V( 83, 0x3bdd, 90, 84, 0 ), - V( 84, 0x34ee, 91, 85, 0 ), - V( 85, 0x2eae, 92, 86, 0 ), - V( 86, 0x299a, 93, 87, 0 ), - V( 87, 0x2516, 86, 71, 0 ), - V( 88, 0x5570, 88, 89, 1 ), - V( 89, 0x4ca9, 95, 90, 0 ), - V( 90, 0x44d9, 96, 91, 0 ), - V( 91, 0x3e22, 97, 92, 0 ), - V( 92, 0x3824, 99, 93, 0 ), - V( 93, 0x32b4, 99, 94, 0 ), - V( 94, 0x2e17, 93, 86, 0 ), - V( 95, 0x56a8, 95, 96, 1 ), - V( 96, 0x4f46, 101, 97, 0 ), - V( 97, 0x47e5, 102, 98, 0 ), - V( 98, 0x41cf, 103, 99, 0 ), - V( 99, 0x3c3d, 104, 100, 0 ), - V( 100, 0x375e, 99, 93, 0 ), - V( 101, 0x5231, 105, 102, 0 ), - V( 102, 0x4c0f, 106, 103, 0 ), - V( 103, 0x4639, 107, 104, 0 ), - V( 104, 0x415e, 103, 99, 0 ), - V( 105, 0x5627, 105, 106, 1 ), - V( 106, 0x50e7, 108, 107, 0 ), - V( 107, 0x4b85, 109, 103, 0 ), - V( 108, 0x5597, 110, 109, 0 ), - V( 109, 0x504f, 111, 107, 0 ), - V( 110, 0x5a10, 110, 111, 1 ), - V( 111, 0x5522, 112, 109, 0 ), - V( 112, 0x59eb, 112, 111, 1 ), -/* - * This last entry is used for fixed probability estimate of 0.5 - * as suggested in Section 10.3 Table 5 of ITU-T Rec. T.851. - */ - V( 113, 0x5a1d, 113, 113, 0 ) -}; diff --git a/jpeg/jcapimin.c b/jpeg/jcapimin.c deleted file mode 100755 index 639ce86..0000000 --- a/jpeg/jcapimin.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * jcapimin.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2003-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the compression half - * of the JPEG library. These are the "minimum" API routines that may be - * needed in either the normal full-compression case or the transcoding-only - * case. - * - * Most of the routines intended to be called directly by an application - * are in this file or in jcapistd.c. But also see jcparam.c for - * parameter-setup helper routines, jcomapi.c for routines shared by - * compression and decompression, and jctrans.c for the transcoding case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Initialization of a JPEG compression object. - * The error manager must already be set up (in case memory manager fails). - */ - -GLOBAL(void) -jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize) -{ - int i; - - /* Guard against version mismatches between library and caller. */ - cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ - if (version != JPEG_LIB_VERSION) - ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); - if (structsize != SIZEOF(struct jpeg_compress_struct)) - ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, - (int) SIZEOF(struct jpeg_compress_struct), (int) structsize); - - /* For debugging purposes, we zero the whole master structure. - * But the application has already set the err pointer, and may have set - * client_data, so we have to save and restore those fields. - * Note: if application hasn't set client_data, tools like Purify may - * complain here. - */ - { - struct jpeg_error_mgr * err = cinfo->err; - void * client_data = cinfo->client_data; /* ignore Purify complaint here */ - MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct)); - cinfo->err = err; - cinfo->client_data = client_data; - } - cinfo->is_decompressor = FALSE; - - /* Initialize a memory manager instance for this object */ - jinit_memory_mgr((j_common_ptr) cinfo); - - /* Zero out pointers to permanent structures. */ - cinfo->progress = NULL; - cinfo->dest = NULL; - - cinfo->comp_info = NULL; - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - cinfo->quant_tbl_ptrs[i] = NULL; - cinfo->q_scale_factor[i] = 100; - } - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - cinfo->dc_huff_tbl_ptrs[i] = NULL; - cinfo->ac_huff_tbl_ptrs[i] = NULL; - } - - /* Must do it here for emit_dqt in case jpeg_write_tables is used */ - cinfo->block_size = DCTSIZE; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - - cinfo->script_space = NULL; - - cinfo->input_gamma = 1.0; /* in case application forgets */ - - /* OK, I'm ready */ - cinfo->global_state = CSTATE_START; -} - - -/* - * Destruction of a JPEG compression object - */ - -GLOBAL(void) -jpeg_destroy_compress (j_compress_ptr cinfo) -{ - jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Abort processing of a JPEG compression operation, - * but don't destroy the object itself. - */ - -GLOBAL(void) -jpeg_abort_compress (j_compress_ptr cinfo) -{ - jpeg_abort((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Forcibly suppress or un-suppress all quantization and Huffman tables. - * Marks all currently defined tables as already written (if suppress) - * or not written (if !suppress). This will control whether they get emitted - * by a subsequent jpeg_start_compress call. - * - * This routine is exported for use by applications that want to produce - * abbreviated JPEG datastreams. It logically belongs in jcparam.c, but - * since it is called by jpeg_start_compress, we put it here --- otherwise - * jcparam.o would be linked whether the application used it or not. - */ - -GLOBAL(void) -jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress) -{ - int i; - JQUANT_TBL * qtbl; - JHUFF_TBL * htbl; - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL) - qtbl->sent_table = suppress; - } - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL) - htbl->sent_table = suppress; - if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL) - htbl->sent_table = suppress; - } -} - - -/* - * Finish JPEG compression. - * - * If a multipass operating mode was selected, this may do a great deal of - * work including most of the actual output. - */ - -GLOBAL(void) -jpeg_finish_compress (j_compress_ptr cinfo) -{ - JDIMENSION iMCU_row; - - if (cinfo->global_state == CSTATE_SCANNING || - cinfo->global_state == CSTATE_RAW_OK) { - /* Terminate first pass */ - if (cinfo->next_scanline < cinfo->image_height) - ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); - (*cinfo->master->finish_pass) (cinfo); - } else if (cinfo->global_state != CSTATE_WRCOEFS) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Perform any remaining passes */ - while (! cinfo->master->is_last_pass) { - (*cinfo->master->prepare_for_pass) (cinfo); - for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) { - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) iMCU_row; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - /* We bypass the main controller and invoke coef controller directly; - * all work is being done from the coefficient buffer. - */ - if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } - (*cinfo->master->finish_pass) (cinfo); - } - /* Write EOI, do final cleanup */ - (*cinfo->marker->write_file_trailer) (cinfo); - (*cinfo->dest->term_destination) (cinfo); - /* We can use jpeg_abort to release memory and reset global_state */ - jpeg_abort((j_common_ptr) cinfo); -} - - -/* - * Write a special marker. - * This is only recommended for writing COM or APPn markers. - * Must be called after jpeg_start_compress() and before - * first call to jpeg_write_scanlines() or jpeg_write_raw_data(). - */ - -GLOBAL(void) -jpeg_write_marker (j_compress_ptr cinfo, int marker, - const JOCTET *dataptr, unsigned int datalen) -{ - JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val)); - - if (cinfo->next_scanline != 0 || - (cinfo->global_state != CSTATE_SCANNING && - cinfo->global_state != CSTATE_RAW_OK && - cinfo->global_state != CSTATE_WRCOEFS)) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); - write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */ - while (datalen--) { - (*write_marker_byte) (cinfo, *dataptr); - dataptr++; - } -} - -/* Same, but piecemeal. */ - -GLOBAL(void) -jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen) -{ - if (cinfo->next_scanline != 0 || - (cinfo->global_state != CSTATE_SCANNING && - cinfo->global_state != CSTATE_RAW_OK && - cinfo->global_state != CSTATE_WRCOEFS)) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); -} - -GLOBAL(void) -jpeg_write_m_byte (j_compress_ptr cinfo, int val) -{ - (*cinfo->marker->write_marker_byte) (cinfo, val); -} - - -/* - * Alternate compression function: just write an abbreviated table file. - * Before calling this, all parameters and a data destination must be set up. - * - * To produce a pair of files containing abbreviated tables and abbreviated - * image data, one would proceed as follows: - * - * initialize JPEG object - * set JPEG parameters - * set destination to table file - * jpeg_write_tables(cinfo); - * set destination to image file - * jpeg_start_compress(cinfo, FALSE); - * write data... - * jpeg_finish_compress(cinfo); - * - * jpeg_write_tables has the side effect of marking all tables written - * (same as jpeg_suppress_tables(..., TRUE)). Thus a subsequent start_compress - * will not re-emit the tables unless it is passed write_all_tables=TRUE. - */ - -GLOBAL(void) -jpeg_write_tables (j_compress_ptr cinfo) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Initialize the marker writer ... bit of a crock to do it here. */ - jinit_marker_writer(cinfo); - /* Write them tables! */ - (*cinfo->marker->write_tables_only) (cinfo); - /* And clean up. */ - (*cinfo->dest->term_destination) (cinfo); - /* - * In library releases up through v6a, we called jpeg_abort() here to free - * any working memory allocated by the destination manager and marker - * writer. Some applications had a problem with that: they allocated space - * of their own from the library memory manager, and didn't want it to go - * away during write_tables. So now we do nothing. This will cause a - * memory leak if an app calls write_tables repeatedly without doing a full - * compression cycle or otherwise resetting the JPEG object. However, that - * seems less bad than unexpectedly freeing memory in the normal case. - * An app that prefers the old behavior can call jpeg_abort for itself after - * each call to jpeg_write_tables(). - */ -} diff --git a/jpeg/jcapistd.c b/jpeg/jcapistd.c deleted file mode 100755 index c0320b1..0000000 --- a/jpeg/jcapistd.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * jcapistd.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the compression half - * of the JPEG library. These are the "standard" API routines that are - * used in the normal full-compression case. They are not used by a - * transcoding-only application. Note that if an application links in - * jpeg_start_compress, it will end up linking in the entire compressor. - * We thus must separate this file from jcapimin.c to avoid linking the - * whole compression library into a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Compression initialization. - * Before calling this, all parameters and a data destination must be set up. - * - * We require a write_all_tables parameter as a failsafe check when writing - * multiple datastreams from the same compression object. Since prior runs - * will have left all the tables marked sent_table=TRUE, a subsequent run - * would emit an abbreviated stream (no tables) by default. This may be what - * is wanted, but for safety's sake it should not be the default behavior: - * programmers should have to make a deliberate choice to emit abbreviated - * images. Therefore the documentation and examples should encourage people - * to pass write_all_tables=TRUE; then it will take active thought to do the - * wrong thing. - */ - -GLOBAL(void) -jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (write_all_tables) - jpeg_suppress_tables(cinfo, FALSE); /* mark all tables to be written */ - - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Perform master selection of active modules */ - jinit_compress_master(cinfo); - /* Set up for the first pass */ - (*cinfo->master->prepare_for_pass) (cinfo); - /* Ready for application to drive first pass through jpeg_write_scanlines - * or jpeg_write_raw_data. - */ - cinfo->next_scanline = 0; - cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING); -} - - -/* - * Write some scanlines of data to the JPEG compressor. - * - * The return value will be the number of lines actually written. - * This should be less than the supplied num_lines only in case that - * the data destination module has requested suspension of the compressor, - * or if more than image_height scanlines are passed in. - * - * Note: we warn about excess calls to jpeg_write_scanlines() since - * this likely signals an application programmer error. However, - * excess scanlines passed in the last valid call are *silently* ignored, - * so that the application need not adjust num_lines for end-of-image - * when using a multiple-scanline buffer. - */ - -GLOBAL(JDIMENSION) -jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines, - JDIMENSION num_lines) -{ - JDIMENSION row_ctr, rows_left; - - if (cinfo->global_state != CSTATE_SCANNING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->next_scanline >= cinfo->image_height) - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->next_scanline; - cinfo->progress->pass_limit = (long) cinfo->image_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Give master control module another chance if this is first call to - * jpeg_write_scanlines. This lets output of the frame/scan headers be - * delayed so that application can write COM, etc, markers between - * jpeg_start_compress and jpeg_write_scanlines. - */ - if (cinfo->master->call_pass_startup) - (*cinfo->master->pass_startup) (cinfo); - - /* Ignore any extra scanlines at bottom of image. */ - rows_left = cinfo->image_height - cinfo->next_scanline; - if (num_lines > rows_left) - num_lines = rows_left; - - row_ctr = 0; - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines); - cinfo->next_scanline += row_ctr; - return row_ctr; -} - - -/* - * Alternate entry point to write raw data. - * Processes exactly one iMCU row per call, unless suspended. - */ - -GLOBAL(JDIMENSION) -jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data, - JDIMENSION num_lines) -{ - JDIMENSION lines_per_iMCU_row; - - if (cinfo->global_state != CSTATE_RAW_OK) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->next_scanline >= cinfo->image_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->next_scanline; - cinfo->progress->pass_limit = (long) cinfo->image_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Give master control module another chance if this is first call to - * jpeg_write_raw_data. This lets output of the frame/scan headers be - * delayed so that application can write COM, etc, markers between - * jpeg_start_compress and jpeg_write_raw_data. - */ - if (cinfo->master->call_pass_startup) - (*cinfo->master->pass_startup) (cinfo); - - /* Verify that at least one iMCU row has been passed. */ - lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE; - if (num_lines < lines_per_iMCU_row) - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* Directly compress the row. */ - if (! (*cinfo->coef->compress_data) (cinfo, data)) { - /* If compressor did not consume the whole row, suspend processing. */ - return 0; - } - - /* OK, we processed one iMCU row. */ - cinfo->next_scanline += lines_per_iMCU_row; - return lines_per_iMCU_row; -} diff --git a/jpeg/jcarith.c b/jpeg/jcarith.c deleted file mode 100755 index 033f670..0000000 --- a/jpeg/jcarith.c +++ /dev/null @@ -1,937 +0,0 @@ -/* - * jcarith.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains portable arithmetic entropy encoding routines for JPEG - * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). - * - * Both sequential and progressive modes are supported in this single module. - * - * Suspension is not currently supported in this module. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Expanded entropy encoder object for arithmetic encoding. */ - -typedef struct { - struct jpeg_entropy_encoder pub; /* public fields */ - - INT32 c; /* C register, base of coding interval, layout as in sec. D.1.3 */ - INT32 a; /* A register, normalized size of coding interval */ - INT32 sc; /* counter for stacked 0xFF values which might overflow */ - INT32 zc; /* counter for pending 0x00 output values which might * - * be discarded at the end ("Pacman" termination) */ - int ct; /* bit shift counter, determines when next byte will be written */ - int buffer; /* buffer for most recent output byte != 0xFF */ - - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ - int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ - - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - int next_restart_num; /* next restart number to write (0-7) */ - - /* Pointers to statistics areas (these workspaces have image lifespan) */ - unsigned char * dc_stats[NUM_ARITH_TBLS]; - unsigned char * ac_stats[NUM_ARITH_TBLS]; - - /* Statistics bin for coding with fixed probability 0.5 */ - unsigned char fixed_bin[4]; -} arith_entropy_encoder; - -typedef arith_entropy_encoder * arith_entropy_ptr; - -/* The following two definitions specify the allocation chunk size - * for the statistics area. - * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least - * 49 statistics bins for DC, and 245 statistics bins for AC coding. - * - * We use a compact representation with 1 byte per statistics bin, - * thus the numbers directly represent byte sizes. - * This 1 byte per statistics bin contains the meaning of the MPS - * (more probable symbol) in the highest bit (mask 0x80), and the - * index into the probability estimation state machine table - * in the lower bits (mask 0x7F). - */ - -#define DC_STAT_BINS 64 -#define AC_STAT_BINS 256 - -/* NOTE: Uncomment the following #define if you want to use the - * given formula for calculating the AC conditioning parameter Kx - * for spectral selection progressive coding in section G.1.3.2 - * of the spec (Kx = Kmin + SRL (8 + Se - Kmin) 4). - * Although the spec and P&M authors claim that this "has proven - * to give good results for 8 bit precision samples", I'm not - * convinced yet that this is really beneficial. - * Early tests gave only very marginal compression enhancements - * (a few - around 5 or so - bytes even for very large files), - * which would turn out rather negative if we'd suppress the - * DAC (Define Arithmetic Conditioning) marker segments for - * the default parameters in the future. - * Note that currently the marker writing module emits 12-byte - * DAC segments for a full-component scan in a color image. - * This is not worth worrying about IMHO. However, since the - * spec defines the default values to be used if the tables - * are omitted (unlike Huffman tables, which are required - * anyway), one might optimize this behaviour in the future, - * and then it would be disadvantageous to use custom tables if - * they don't provide sufficient gain to exceed the DAC size. - * - * On the other hand, I'd consider it as a reasonable result - * that the conditioning has no significant influence on the - * compression performance. This means that the basic - * statistical model is already rather stable. - * - * Thus, at the moment, we use the default conditioning values - * anyway, and do not use the custom formula. - * -#define CALCULATE_SPECTRAL_CONDITIONING - */ - -/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. - * We assume that int right shift is unsigned if INT32 right shift is, - * which should be safe. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS int ishift_temp; -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -LOCAL(void) -emit_byte (int val, j_compress_ptr cinfo) -/* Write next output byte; we do not support suspension in this module. */ -{ - struct jpeg_destination_mgr * dest = cinfo->dest; - - *dest->next_output_byte++ = (JOCTET) val; - if (--dest->free_in_buffer == 0) - if (! (*dest->empty_output_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); -} - - -/* - * Finish up at the end of an arithmetic-compressed scan. - */ - -METHODDEF(void) -finish_pass (j_compress_ptr cinfo) -{ - arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - INT32 temp; - - /* Section D.1.8: Termination of encoding */ - - /* Find the e->c in the coding interval with the largest - * number of trailing zero bits */ - if ((temp = (e->a - 1 + e->c) & 0xFFFF0000L) < e->c) - e->c = temp + 0x8000L; - else - e->c = temp; - /* Send remaining bytes to output */ - e->c <<= e->ct; - if (e->c & 0xF8000000L) { - /* One final overflow has to be handled */ - if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer + 1, cinfo); - if (e->buffer + 1 == 0xFF) - emit_byte(0x00, cinfo); - } - e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ - e->sc = 0; - } else { - if (e->buffer == 0) - ++e->zc; - else if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer, cinfo); - } - if (e->sc) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - do { - emit_byte(0xFF, cinfo); - emit_byte(0x00, cinfo); - } while (--e->sc); - } - } - /* Output final bytes only if they are not 0x00 */ - if (e->c & 0x7FFF800L) { - if (e->zc) /* output final pending zero bytes */ - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte((e->c >> 19) & 0xFF, cinfo); - if (((e->c >> 19) & 0xFF) == 0xFF) - emit_byte(0x00, cinfo); - if (e->c & 0x7F800L) { - emit_byte((e->c >> 11) & 0xFF, cinfo); - if (((e->c >> 11) & 0xFF) == 0xFF) - emit_byte(0x00, cinfo); - } - } -} - - -/* - * The core arithmetic encoding routine (common in JPEG and JBIG). - * This needs to go as fast as possible. - * Machine-dependent optimization facilities - * are not utilized in this portable implementation. - * However, this code should be fairly efficient and - * may be a good base for further optimizations anyway. - * - * Parameter 'val' to be encoded may be 0 or 1 (binary decision). - * - * Note: I've added full "Pacman" termination support to the - * byte output routines, which is equivalent to the optional - * Discard_final_zeros procedure (Figure D.15) in the spec. - * Thus, we always produce the shortest possible output - * stream compliant to the spec (no trailing zero bytes, - * except for FF stuffing). - * - * I've also introduced a new scheme for accessing - * the probability estimation state machine table, - * derived from Markus Kuhn's JBIG implementation. - */ - -LOCAL(void) -arith_encode (j_compress_ptr cinfo, unsigned char *st, int val) -{ - register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - register unsigned char nl, nm; - register INT32 qe, temp; - register int sv; - - /* Fetch values from our compact representation of Table D.3(D.2): - * Qe values and probability estimation state machine - */ - sv = *st; - qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ - nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ - nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ - - /* Encode & estimation procedures per sections D.1.4 & D.1.5 */ - e->a -= qe; - if (val != (sv >> 7)) { - /* Encode the less probable symbol */ - if (e->a >= qe) { - /* If the interval size (qe) for the less probable symbol (LPS) - * is larger than the interval size for the MPS, then exchange - * the two symbols for coding efficiency, otherwise code the LPS - * as usual: */ - e->c += e->a; - e->a = qe; - } - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - } else { - /* Encode the more probable symbol */ - if (e->a >= 0x8000L) - return; /* A >= 0x8000 -> ready, no renormalization required */ - if (e->a < qe) { - /* If the interval size (qe) for the less probable symbol (LPS) - * is larger than the interval size for the MPS, then exchange - * the two symbols for coding efficiency: */ - e->c += e->a; - e->a = qe; - } - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } - - /* Renormalization & data output per section D.1.6 */ - do { - e->a <<= 1; - e->c <<= 1; - if (--e->ct == 0) { - /* Another byte is ready for output */ - temp = e->c >> 19; - if (temp > 0xFF) { - /* Handle overflow over all stacked 0xFF bytes */ - if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer + 1, cinfo); - if (e->buffer + 1 == 0xFF) - emit_byte(0x00, cinfo); - } - e->zc += e->sc; /* carry-over converts stacked 0xFF bytes to 0x00 */ - e->sc = 0; - /* Note: The 3 spacer bits in the C register guarantee - * that the new buffer byte can't be 0xFF here - * (see page 160 in the P&M JPEG book). */ - e->buffer = temp & 0xFF; /* new output byte, might overflow later */ - } else if (temp == 0xFF) { - ++e->sc; /* stack 0xFF byte (which might overflow later) */ - } else { - /* Output all stacked 0xFF bytes, they will not overflow any more */ - if (e->buffer == 0) - ++e->zc; - else if (e->buffer >= 0) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - emit_byte(e->buffer, cinfo); - } - if (e->sc) { - if (e->zc) - do emit_byte(0x00, cinfo); - while (--e->zc); - do { - emit_byte(0xFF, cinfo); - emit_byte(0x00, cinfo); - } while (--e->sc); - } - e->buffer = temp & 0xFF; /* new output byte (can still overflow) */ - } - e->c &= 0x7FFFFL; - e->ct += 8; - } - } while (e->a < 0x8000L); -} - - -/* - * Emit a restart marker & resynchronize predictions. - */ - -LOCAL(void) -emit_restart (j_compress_ptr cinfo, int restart_num) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci; - jpeg_component_info * compptr; - - finish_pass(cinfo); - - emit_byte(0xFF, cinfo); - emit_byte(JPEG_RST0 + restart_num, cinfo); - - /* Re-initialize statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); - /* Reset DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); - } - } - - /* Reset arithmetic encoding variables */ - entropy->c = 0; - entropy->a = 0x10000L; - entropy->sc = 0; - entropy->zc = 0; - entropy->ct = 11; - entropy->buffer = -1; /* empty */ -} - - -/* - * MCU encoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl; - int v, v2, m; - ISHIFT_TEMPS - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; - - /* Compute the DC value after the required point transform by Al. - * This is simply an arithmetic right shift. - */ - m = IRIGHT_SHIFT((int) ((*block)[0]), cinfo->Al); - - /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.4: Encode_DC_DIFF */ - if ((v = m - entropy->last_dc_val[ci]) == 0) { - arith_encode(cinfo, st, 0); - entropy->dc_context[ci] = 0; /* zero diff category */ - } else { - entropy->last_dc_val[ci] = m; - arith_encode(cinfo, st, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ - st += 2; /* Table F.4: SP = S0 + 2 */ - entropy->dc_context[ci] = 4; /* small positive diff category */ - } else { - v = -v; - arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ - st += 3; /* Table F.4: SN = S0 + 3 */ - entropy->dc_context[ci] = 8; /* small negative diff category */ - } - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - arith_encode(cinfo, st, 0); - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] += 8; /* large diff category */ - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - } - - return TRUE; -} - - -/* - * MCU encoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, k, ke; - int v, v2, m; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ - - /* Establish EOB (end-of-block) index */ - for (ke = cinfo->Se; ke > 0; ke--) - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if ((v = (*block)[natural_order[ke]]) >= 0) { - if (v >>= cinfo->Al) break; - } else { - v = -v; - if (v >>= cinfo->Al) break; - } - - /* Figure F.5: Encode_AC_Coefficients */ - for (k = cinfo->Ss; k <= ke; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 0); /* EOB decision */ - for (;;) { - if ((v = (*block)[natural_order[k]]) >= 0) { - if (v >>= cinfo->Al) { - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 0); - break; - } - } else { - v = -v; - if (v >>= cinfo->Al) { - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 1); - break; - } - } - arith_encode(cinfo, st + 1, 0); st += 3; k++; - } - st += 2; - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - if (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - } - arith_encode(cinfo, st, 0); - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - /* Encode EOB decision only if k <= cinfo->Se */ - if (k <= cinfo->Se) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 1); - } - - return TRUE; -} - - -/* - * MCU encoding for DC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - unsigned char *st; - int Al, blkn; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - st = entropy->fixed_bin; /* use fixed probability estimation */ - Al = cinfo->Al; - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - /* We simply emit the Al'th bit of the DC coefficient value. */ - arith_encode(cinfo, st, (MCU_data[blkn][0][0] >> Al) & 1); - } - - return TRUE; -} - - -/* - * MCU encoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, k, ke, kex; - int v; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Section G.1.3.3: Encoding of AC coefficients */ - - /* Establish EOB (end-of-block) index */ - for (ke = cinfo->Se; ke > 0; ke--) - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if ((v = (*block)[natural_order[ke]]) >= 0) { - if (v >>= cinfo->Al) break; - } else { - v = -v; - if (v >>= cinfo->Al) break; - } - - /* Establish EOBx (previous stage end-of-block) index */ - for (kex = ke; kex > 0; kex--) - if ((v = (*block)[natural_order[kex]]) >= 0) { - if (v >>= cinfo->Ah) break; - } else { - v = -v; - if (v >>= cinfo->Ah) break; - } - - /* Figure G.10: Encode_AC_Coefficients_SA */ - for (k = cinfo->Ss; k <= ke; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (k > kex) - arith_encode(cinfo, st, 0); /* EOB decision */ - for (;;) { - if ((v = (*block)[natural_order[k]]) >= 0) { - if (v >>= cinfo->Al) { - if (v >> 1) /* previously nonzero coef */ - arith_encode(cinfo, st + 2, (v & 1)); - else { /* newly nonzero coef */ - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 0); - } - break; - } - } else { - v = -v; - if (v >>= cinfo->Al) { - if (v >> 1) /* previously nonzero coef */ - arith_encode(cinfo, st + 2, (v & 1)); - else { /* newly nonzero coef */ - arith_encode(cinfo, st + 1, 1); - arith_encode(cinfo, entropy->fixed_bin, 1); - } - break; - } - } - arith_encode(cinfo, st + 1, 0); st += 3; k++; - } - } - /* Encode EOB decision only if k <= cinfo->Se */ - if (k <= cinfo->Se) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - arith_encode(cinfo, st, 1); - } - - return TRUE; -} - - -/* - * Encode and output one MCU's worth of arithmetic-compressed coefficients. - */ - -METHODDEF(boolean) -encode_mcu (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - jpeg_component_info * compptr; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, k, ke; - int v, v2, m; - const int * natural_order; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - emit_restart(cinfo, entropy->next_restart_num); - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - natural_order = cinfo->natural_order; - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Sections F.1.4.1 & F.1.4.4.1: Encoding of DC coefficients */ - - tbl = compptr->dc_tbl_no; - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.4: Encode_DC_DIFF */ - if ((v = (*block)[0] - entropy->last_dc_val[ci]) == 0) { - arith_encode(cinfo, st, 0); - entropy->dc_context[ci] = 0; /* zero diff category */ - } else { - entropy->last_dc_val[ci] = (*block)[0]; - arith_encode(cinfo, st, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, st + 1, 0); /* Table F.4: SS = S0 + 1 */ - st += 2; /* Table F.4: SP = S0 + 2 */ - entropy->dc_context[ci] = 4; /* small positive diff category */ - } else { - v = -v; - arith_encode(cinfo, st + 1, 1); /* Table F.4: SS = S0 + 1 */ - st += 3; /* Table F.4: SN = S0 + 3 */ - entropy->dc_context[ci] = 8; /* small negative diff category */ - } - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - arith_encode(cinfo, st, 0); - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] += 8; /* large diff category */ - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - - /* Sections F.1.4.2 & F.1.4.4.2: Encoding of AC coefficients */ - - if ((ke = cinfo->lim_Se) == 0) continue; - tbl = compptr->ac_tbl_no; - - /* Establish EOB (end-of-block) index */ - do { - if ((*block)[natural_order[ke]]) break; - } while (--ke); - - /* Figure F.5: Encode_AC_Coefficients */ - for (k = 0; k < ke;) { - st = entropy->ac_stats[tbl] + 3 * k; - arith_encode(cinfo, st, 0); /* EOB decision */ - while ((v = (*block)[natural_order[++k]]) == 0) { - arith_encode(cinfo, st + 1, 0); - st += 3; - } - arith_encode(cinfo, st + 1, 1); - /* Figure F.6: Encoding nonzero value v */ - /* Figure F.7: Encoding the sign of v */ - if (v > 0) { - arith_encode(cinfo, entropy->fixed_bin, 0); - } else { - v = -v; - arith_encode(cinfo, entropy->fixed_bin, 1); - } - st += 2; - /* Figure F.8: Encoding the magnitude category of v */ - m = 0; - if (v -= 1) { - arith_encode(cinfo, st, 1); - m = 1; - v2 = v; - if (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (v2 >>= 1) { - arith_encode(cinfo, st, 1); - m <<= 1; - st += 1; - } - } - } - arith_encode(cinfo, st, 0); - /* Figure F.9: Encoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - arith_encode(cinfo, st, (m & v) ? 1 : 0); - } - /* Encode EOB decision only if k < cinfo->lim_Se */ - if (k < cinfo->lim_Se) { - st = entropy->ac_stats[tbl] + 3 * k; - arith_encode(cinfo, st, 1); - } - } - - return TRUE; -} - - -/* - * Initialize for an arithmetic-compressed scan. - */ - -METHODDEF(void) -start_pass (j_compress_ptr cinfo, boolean gather_statistics) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (gather_statistics) - /* Make sure to avoid that in the master control logic! - * We are fully adaptive here and need no extra - * statistics gathering pass! - */ - ERREXIT(cinfo, JERR_NOT_COMPILED); - - /* We assume jcmaster.c already validated the progressive scan parameters. */ - - /* Select execution routines */ - if (cinfo->progressive_mode) { - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_first; - else - entropy->pub.encode_mcu = encode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_refine; - else - entropy->pub.encode_mcu = encode_mcu_AC_refine; - } - } else - entropy->pub.encode_mcu = encode_mcu; - - /* Allocate & initialize requested statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->dc_stats[tbl] == NULL) - entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); - MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); - /* Initialize DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->ac_stats[tbl] == NULL) - entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); - MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); -#ifdef CALCULATE_SPECTRAL_CONDITIONING - if (cinfo->progressive_mode) - /* Section G.1.3.2: Set appropriate arithmetic conditioning value Kx */ - cinfo->arith_ac_K[tbl] = cinfo->Ss + ((8 + cinfo->Se - cinfo->Ss) >> 4); -#endif - } - } - - /* Initialize arithmetic encoding variables */ - entropy->c = 0; - entropy->a = 0x10000L; - entropy->sc = 0; - entropy->zc = 0; - entropy->ct = 11; - entropy->buffer = -1; /* empty */ - - /* Initialize restart stuff */ - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num = 0; -} - - -/* - * Module initialization routine for arithmetic entropy encoding. - */ - -GLOBAL(void) -jinit_arith_encoder (j_compress_ptr cinfo) -{ - arith_entropy_ptr entropy; - int i; - - entropy = (arith_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(arith_entropy_encoder)); - cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; - entropy->pub.start_pass = start_pass; - entropy->pub.finish_pass = finish_pass; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - entropy->dc_stats[i] = NULL; - entropy->ac_stats[i] = NULL; - } - - /* Initialize index for fixed probability estimation */ - entropy->fixed_bin[0] = 113; -} diff --git a/jpeg/jccoefct.c b/jpeg/jccoefct.c deleted file mode 100755 index 924a703..0000000 --- a/jpeg/jccoefct.c +++ /dev/null @@ -1,454 +0,0 @@ -/* - * jccoefct.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the coefficient buffer controller for compression. - * This controller is the top level of the JPEG compressor proper. - * The coefficient buffer lies between forward-DCT and entropy encoding steps. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* We use a full-image coefficient buffer when doing Huffman optimization, - * and also for writing multiple-scan JPEG files. In all cases, the DCT - * step is run during the first pass, and subsequent passes need only read - * the buffered coefficients. - */ -#ifdef ENTROPY_OPT_SUPPORTED -#define FULL_COEF_BUFFER_SUPPORTED -#else -#ifdef C_MULTISCAN_FILES_SUPPORTED -#define FULL_COEF_BUFFER_SUPPORTED -#endif -#endif - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_coef_controller pub; /* public fields */ - - JDIMENSION iMCU_row_num; /* iMCU row # within image */ - JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* For single-pass compression, it's sufficient to buffer just one MCU - * (although this may prove a bit slow in practice). We allocate a - * workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks, and reuse it for each - * MCU constructed and sent. (On 80x86, the workspace is FAR even though - * it's not really very big; this is to keep the module interfaces unchanged - * when a large coefficient buffer is necessary.) - * In multi-pass modes, this array points to the current MCU's blocks - * within the virtual arrays. - */ - JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; - - /* In multi-pass modes, we need a virtual block array for each component. */ - jvirt_barray_ptr whole_image[MAX_COMPONENTS]; -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - - -/* Forward declarations */ -METHODDEF(boolean) compress_data - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -#ifdef FULL_COEF_BUFFER_SUPPORTED -METHODDEF(boolean) compress_first_pass - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -METHODDEF(boolean) compress_output - JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf)); -#endif - - -LOCAL(void) -start_iMCU_row (j_compress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->mcu_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - coef->iMCU_row_num = 0; - start_iMCU_row(cinfo); - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (coef->whole_image[0] != NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_data; - break; -#ifdef FULL_COEF_BUFFER_SUPPORTED - case JBUF_SAVE_AND_PASS: - if (coef->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_first_pass; - break; - case JBUF_CRANK_DEST: - if (coef->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - coef->pub.compress_data = compress_output; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data in the single-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the image. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf contains a plane for each component in image, - * which we index according to the component's SOF position. - */ - -METHODDEF(boolean) -compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, bi, ci, yindex, yoffset, blockcnt; - JDIMENSION ypos, xpos; - jpeg_component_info *compptr; - forward_DCT_ptr forward_DCT; - - /* Loop to write as much as one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num <= last_MCU_col; - MCU_col_num++) { - /* Determine where data comes from in input_buf and do the DCT thing. - * Each call on forward_DCT processes a horizontal row of DCT blocks - * as wide as an MCU; we rely on having allocated the MCU_buffer[] blocks - * sequentially. Dummy blocks at the right or bottom edge are filled in - * specially. The data in them does not matter for image reconstruction, - * so we fill them with values that will encode to the smallest amount of - * data, viz: all zeroes in the AC entries, DC entries equal to previous - * block's DC value. (Thanks to Thomas Kinsman for this idea.) - */ - blkn = 0; - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - forward_DCT = cinfo->fdct->forward_DCT[compptr->component_index]; - blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - xpos = MCU_col_num * compptr->MCU_sample_width; - ypos = yoffset * compptr->DCT_v_scaled_size; - /* ypos == (yoffset+yindex) * DCTSIZE */ - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (coef->iMCU_row_num < last_iMCU_row || - yoffset+yindex < compptr->last_row_height) { - (*forward_DCT) (cinfo, compptr, - input_buf[compptr->component_index], - coef->MCU_buffer[blkn], - ypos, xpos, (JDIMENSION) blockcnt); - if (blockcnt < compptr->MCU_width) { - /* Create some dummy blocks at the right edge of the image. */ - FMEMZERO((void FAR *) coef->MCU_buffer[blkn + blockcnt], - (compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK)); - for (bi = blockcnt; bi < compptr->MCU_width; bi++) { - coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0]; - } - } - } else { - /* Create a row of dummy blocks at the bottom of the image. */ - FMEMZERO((void FAR *) coef->MCU_buffer[blkn], - compptr->MCU_width * SIZEOF(JBLOCK)); - for (bi = 0; bi < compptr->MCU_width; bi++) { - coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0]; - } - } - blkn += compptr->MCU_width; - ypos += compptr->DCT_v_scaled_size; - } - } - /* Try to write the MCU. In event of a suspension failure, we will - * re-DCT the MCU on restart (a bit inefficient, could be fixed...) - */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - - -#ifdef FULL_COEF_BUFFER_SUPPORTED - -/* - * Process some data in the first pass of a multi-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the image. - * This amount of data is read from the source buffer, DCT'd and quantized, - * and saved into the virtual arrays. We also generate suitable dummy blocks - * as needed at the right and lower edges. (The dummy blocks are constructed - * in the virtual arrays, which have been padded appropriately.) This makes - * it possible for subsequent passes not to worry about real vs. dummy blocks. - * - * We must also emit the data to the entropy encoder. This is conveniently - * done by calling compress_output() after we've loaded the current strip - * of the virtual arrays. - * - * NB: input_buf contains a plane for each component in image. All - * components are DCT'd and loaded into the virtual arrays in this pass. - * However, it may be that only a subset of the components are emitted to - * the entropy encoder during this first pass; be careful about looking - * at the scan-dependent variables (MCU dimensions, etc). - */ - -METHODDEF(boolean) -compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION blocks_across, MCUs_across, MCUindex; - int bi, ci, h_samp_factor, block_row, block_rows, ndummy; - JCOEF lastDC; - jpeg_component_info *compptr; - JBLOCKARRAY buffer; - JBLOCKROW thisblockrow, lastblockrow; - forward_DCT_ptr forward_DCT; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Align the virtual buffer for this component. */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, TRUE); - /* Count non-dummy DCT block rows in this iMCU row. */ - if (coef->iMCU_row_num < last_iMCU_row) - block_rows = compptr->v_samp_factor; - else { - /* NB: can't use last_row_height here, since may not be set! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - } - blocks_across = compptr->width_in_blocks; - h_samp_factor = compptr->h_samp_factor; - /* Count number of dummy blocks to be added at the right margin. */ - ndummy = (int) (blocks_across % h_samp_factor); - if (ndummy > 0) - ndummy = h_samp_factor - ndummy; - forward_DCT = cinfo->fdct->forward_DCT[ci]; - /* Perform DCT for all non-dummy blocks in this iMCU row. Each call - * on forward_DCT processes a complete horizontal row of DCT blocks. - */ - for (block_row = 0; block_row < block_rows; block_row++) { - thisblockrow = buffer[block_row]; - (*forward_DCT) (cinfo, compptr, input_buf[ci], thisblockrow, - (JDIMENSION) (block_row * compptr->DCT_v_scaled_size), - (JDIMENSION) 0, blocks_across); - if (ndummy > 0) { - /* Create dummy blocks at the right edge of the image. */ - thisblockrow += blocks_across; /* => first dummy block */ - FMEMZERO((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK)); - lastDC = thisblockrow[-1][0]; - for (bi = 0; bi < ndummy; bi++) { - thisblockrow[bi][0] = lastDC; - } - } - } - /* If at end of image, create dummy block rows as needed. - * The tricky part here is that within each MCU, we want the DC values - * of the dummy blocks to match the last real block's DC value. - * This squeezes a few more bytes out of the resulting file... - */ - if (coef->iMCU_row_num == last_iMCU_row) { - blocks_across += ndummy; /* include lower right corner */ - MCUs_across = blocks_across / h_samp_factor; - for (block_row = block_rows; block_row < compptr->v_samp_factor; - block_row++) { - thisblockrow = buffer[block_row]; - lastblockrow = buffer[block_row-1]; - FMEMZERO((void FAR *) thisblockrow, - (size_t) (blocks_across * SIZEOF(JBLOCK))); - for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) { - lastDC = lastblockrow[h_samp_factor-1][0]; - for (bi = 0; bi < h_samp_factor; bi++) { - thisblockrow[bi][0] = lastDC; - } - thisblockrow += h_samp_factor; /* advance to next MCU in row */ - lastblockrow += h_samp_factor; - } - } - } - } - /* NB: compress_output will increment iMCU_row_num if successful. - * A suspension return will result in redoing all the work above next time. - */ - - /* Emit data to the entropy encoder, sharing code with subsequent passes */ - return compress_output(cinfo, input_buf); -} - - -/* - * Process some data in subsequent passes of a multi-pass case. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the scan. - * The data is obtained from the virtual arrays and fed to the entropy coder. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf is ignored; it is likely to be a NULL pointer. - */ - -METHODDEF(boolean) -compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - int blkn, ci, xindex, yindex, yoffset; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. - * NB: during first pass, this is safe only because the buffers will - * already be aligned properly, so jmemmgr.c won't need to do any I/O. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < compptr->MCU_width; xindex++) { - coef->MCU_buffer[blkn++] = buffer_ptr++; - } - } - } - /* Try to write the MCU. */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - -#endif /* FULL_COEF_BUFFER_SUPPORTED */ - - -/* - * Initialize coefficient buffer controller. - */ - -GLOBAL(void) -jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_coef_ptr coef; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_c_coef_controller *) coef; - coef->pub.start_pass = start_pass_coef; - - /* Create the coefficient buffer. */ - if (need_full_buffer) { -#ifdef FULL_COEF_BUFFER_SUPPORTED - /* Allocate a full-image virtual array for each component, */ - /* padded to a multiple of samp_factor DCT blocks in each direction. */ - int ci; - jpeg_component_info *compptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) jround_up((long) compptr->width_in_blocks, - (long) compptr->h_samp_factor), - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor), - (JDIMENSION) compptr->v_samp_factor); - } -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - } else { - /* We only need a single-MCU buffer. */ - JBLOCKROW buffer; - int i; - - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { - coef->MCU_buffer[i] = buffer + i; - } - coef->whole_image[0] = NULL; /* flag for no virtual arrays */ - } -} diff --git a/jpeg/jccolor.c b/jpeg/jccolor.c deleted file mode 100755 index 3e2d0e9..0000000 --- a/jpeg/jccolor.c +++ /dev/null @@ -1,490 +0,0 @@ -/* - * jccolor.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains input colorspace conversion routines. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private subobject */ - -typedef struct { - struct jpeg_color_converter pub; /* public fields */ - - /* Private state for RGB->YCC conversion */ - INT32 * rgb_ycc_tab; /* => table for RGB to YCbCr conversion */ -} my_color_converter; - -typedef my_color_converter * my_cconvert_ptr; - - -/**************** RGB -> YCbCr conversion: most common case **************/ - -/* - * YCbCr is defined per CCIR 601-1, except that Cb and Cr are - * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. - * The conversion equations to be implemented are therefore - * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B - * Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE - * Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE - * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) - * Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2, - * rather than CENTERJSAMPLE, for Cb and Cr. This gave equal positive and - * negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0) - * were not represented exactly. Now we sacrifice exact representation of - * maximum red and maximum blue in order to get exact grayscales. - * - * To avoid floating-point arithmetic, we represent the fractional constants - * as integers scaled up by 2^16 (about 4 digits precision); we have to divide - * the products by 2^16, with appropriate rounding, to get the correct answer. - * - * For even more speed, we avoid doing any multiplications in the inner loop - * by precalculating the constants times R,G,B for all possible values. - * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); - * for 12-bit samples it is still acceptable. It's not very reasonable for - * 16-bit samples, but if you want lossless storage you shouldn't be changing - * colorspace anyway. - * The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included - * in the tables to save adding them separately in the inner loop. - */ - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define CBCR_OFFSET ((INT32) CENTERJSAMPLE << SCALEBITS) -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L< Y section */ -#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ -#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ -#define R_CB_OFF (3*(MAXJSAMPLE+1)) -#define G_CB_OFF (4*(MAXJSAMPLE+1)) -#define B_CB_OFF (5*(MAXJSAMPLE+1)) -#define R_CR_OFF B_CB_OFF /* B=>Cb, R=>Cr are the same */ -#define G_CR_OFF (6*(MAXJSAMPLE+1)) -#define B_CR_OFF (7*(MAXJSAMPLE+1)) -#define TABLE_SIZE (8*(MAXJSAMPLE+1)) - - -/* - * Initialize for RGB->YCC colorspace conversion. - */ - -METHODDEF(void) -rgb_ycc_start (j_compress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - INT32 * rgb_ycc_tab; - INT32 i; - - /* Allocate and fill in the conversion tables. */ - cconvert->rgb_ycc_tab = rgb_ycc_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (TABLE_SIZE * SIZEOF(INT32))); - - for (i = 0; i <= MAXJSAMPLE; i++) { - rgb_ycc_tab[i+R_Y_OFF] = FIX(0.29900) * i; - rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i; - rgb_ycc_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; - rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.16874)) * i; - rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.33126)) * i; - /* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr. - * This ensures that the maximum output will round to MAXJSAMPLE - * not MAXJSAMPLE+1, and thus that we don't have to range-limit. - */ - rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; -/* B=>Cb and R=>Cr tables are the same - rgb_ycc_tab[i+R_CR_OFF] = FIX(0.50000) * i + CBCR_OFFSET + ONE_HALF-1; -*/ - rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.41869)) * i; - rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.08131)) * i; - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * - * Note that we change from the application's interleaved-pixel format - * to our internal noninterleaved, one-plane-per-component format. - * The input buffer is therefore three times as wide as the output buffer. - * - * A starting row offset is provided only for the output buffer. The caller - * can easily adjust the passed input_buf value to accommodate any row - * offset required on that side. - */ - -METHODDEF(void) -rgb_ycc_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr[RGB_RED]); - g = GETJSAMPLE(inptr[RGB_GREEN]); - b = GETJSAMPLE(inptr[RGB_BLUE]); - inptr += RGB_PIXELSIZE; - /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations - * must be too; we do not need an explicit range-limiting operation. - * Hence the value being shifted is never negative, and we don't - * need the general RIGHT_SHIFT macro. - */ - /* Y */ - outptr0[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - /* Cb */ - outptr1[col] = (JSAMPLE) - ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) - >> SCALEBITS); - /* Cr */ - outptr2[col] = (JSAMPLE) - ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) - >> SCALEBITS); - } - } -} - - -/**************** Cases other than RGB -> YCbCr **************/ - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles RGB->grayscale conversion, which is the same - * as the RGB->Y portion of RGB->YCbCr. - * We assume rgb_ycc_start has been called (we only use the Y tables). - */ - -METHODDEF(void) -rgb_gray_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr = output_buf[0][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr[RGB_RED]); - g = GETJSAMPLE(inptr[RGB_GREEN]); - b = GETJSAMPLE(inptr[RGB_BLUE]); - inptr += RGB_PIXELSIZE; - /* Y */ - outptr[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles Adobe-style CMYK->YCCK conversion, - * where we convert R=1-C, G=1-M, and B=1-Y to YCbCr using the same - * conversion as above, while passing K (black) unchanged. - * We assume rgb_ycc_start has been called. - */ - -METHODDEF(void) -cmyk_ycck_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_ycc_tab; - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2, outptr3; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - outptr3 = output_buf[3][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - r = MAXJSAMPLE - GETJSAMPLE(inptr[0]); - g = MAXJSAMPLE - GETJSAMPLE(inptr[1]); - b = MAXJSAMPLE - GETJSAMPLE(inptr[2]); - /* K passes through as-is */ - outptr3[col] = inptr[3]; /* don't need GETJSAMPLE here */ - inptr += 4; - /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations - * must be too; we do not need an explicit range-limiting operation. - * Hence the value being shifted is never negative, and we don't - * need the general RIGHT_SHIFT macro. - */ - /* Y */ - outptr0[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - /* Cb */ - outptr1[col] = (JSAMPLE) - ((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF]) - >> SCALEBITS); - /* Cr */ - outptr2[col] = (JSAMPLE) - ((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles grayscale output with no conversion. - * The source can be either plain grayscale or YCbCr (since Y == gray). - */ - -METHODDEF(void) -grayscale_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - int instride = cinfo->input_components; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr = output_buf[0][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - outptr[col] = inptr[0]; /* don't need GETJSAMPLE() here */ - inptr += instride; - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * No colorspace conversion, but change from interleaved - * to separate-planes representation. - */ - -METHODDEF(void) -rgb_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr0, outptr1, outptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - inptr = *input_buf++; - outptr0 = output_buf[0][output_row]; - outptr1 = output_buf[1][output_row]; - outptr2 = output_buf[2][output_row]; - output_row++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr0[col] = inptr[RGB_RED]; - outptr1[col] = inptr[RGB_GREEN]; - outptr2[col] = inptr[RGB_BLUE]; - inptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Convert some rows of samples to the JPEG colorspace. - * This version handles multi-component colorspaces without conversion. - * We assume input_components == num_components. - */ - -METHODDEF(void) -null_convert (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows) -{ - register JSAMPROW inptr; - register JSAMPROW outptr; - register JDIMENSION col; - register int ci; - int nc = cinfo->num_components; - JDIMENSION num_cols = cinfo->image_width; - - while (--num_rows >= 0) { - /* It seems fastest to make a separate pass for each component. */ - for (ci = 0; ci < nc; ci++) { - inptr = *input_buf; - outptr = output_buf[ci][output_row]; - for (col = 0; col < num_cols; col++) { - outptr[col] = inptr[ci]; /* don't need GETJSAMPLE() here */ - inptr += nc; - } - } - input_buf++; - output_row++; - } -} - - -/* - * Empty method for start_pass. - */ - -METHODDEF(void) -null_method (j_compress_ptr cinfo) -{ - /* no work needed */ -} - - -/* - * Module initialization routine for input colorspace conversion. - */ - -GLOBAL(void) -jinit_color_converter (j_compress_ptr cinfo) -{ - my_cconvert_ptr cconvert; - - cconvert = (my_cconvert_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_color_converter)); - cinfo->cconvert = (struct jpeg_color_converter *) cconvert; - /* set start_pass to null method until we find out differently */ - cconvert->pub.start_pass = null_method; - - /* Make sure input_components agrees with in_color_space */ - switch (cinfo->in_color_space) { - case JCS_GRAYSCALE: - if (cinfo->input_components != 1) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_RGB: - if (cinfo->input_components != RGB_PIXELSIZE) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_YCbCr: - if (cinfo->input_components != 3) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - case JCS_CMYK: - case JCS_YCCK: - if (cinfo->input_components != 4) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - - default: /* JCS_UNKNOWN can be anything */ - if (cinfo->input_components < 1) - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - break; - } - - /* Check num_components, set conversion method based on requested space */ - switch (cinfo->jpeg_color_space) { - case JCS_GRAYSCALE: - if (cinfo->num_components != 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_GRAYSCALE || - cinfo->in_color_space == JCS_YCbCr) - cconvert->pub.color_convert = grayscale_convert; - else if (cinfo->in_color_space == JCS_RGB) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = rgb_gray_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_RGB: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_RGB) - cconvert->pub.color_convert = rgb_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_YCbCr: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_RGB) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = rgb_ycc_convert; - } else if (cinfo->in_color_space == JCS_YCbCr) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_CMYK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_CMYK) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_YCCK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - if (cinfo->in_color_space == JCS_CMYK) { - cconvert->pub.start_pass = rgb_ycc_start; - cconvert->pub.color_convert = cmyk_ycck_convert; - } else if (cinfo->in_color_space == JCS_YCCK) - cconvert->pub.color_convert = null_convert; - else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - default: /* allow null conversion of JCS_UNKNOWN */ - if (cinfo->jpeg_color_space != cinfo->in_color_space || - cinfo->num_components != cinfo->input_components) - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - cconvert->pub.color_convert = null_convert; - break; - } -} diff --git a/jpeg/jcdctmgr.c b/jpeg/jcdctmgr.c deleted file mode 100755 index 0bbdbb6..0000000 --- a/jpeg/jcdctmgr.c +++ /dev/null @@ -1,482 +0,0 @@ -/* - * jcdctmgr.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the forward-DCT management logic. - * This code selects a particular DCT implementation to be used, - * and it performs related housekeeping chores including coefficient - * quantization. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - - -/* Private subobject for this module */ - -typedef struct { - struct jpeg_forward_dct pub; /* public fields */ - - /* Pointer to the DCT routine actually in use */ - forward_DCT_method_ptr do_dct[MAX_COMPONENTS]; - - /* The actual post-DCT divisors --- not identical to the quant table - * entries, because of scaling (especially for an unnormalized DCT). - * Each table is given in normal array order. - */ - DCTELEM * divisors[NUM_QUANT_TBLS]; - -#ifdef DCT_FLOAT_SUPPORTED - /* Same as above for the floating-point case. */ - float_DCT_method_ptr do_float_dct[MAX_COMPONENTS]; - FAST_FLOAT * float_divisors[NUM_QUANT_TBLS]; -#endif -} my_fdct_controller; - -typedef my_fdct_controller * my_fdct_ptr; - - -/* The current scaled-DCT routines require ISLOW-style divisor tables, - * so be sure to compile that code if either ISLOW or SCALING is requested. - */ -#ifdef DCT_ISLOW_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#else -#ifdef DCT_SCALING_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#endif -#endif - - -/* - * Perform forward DCT on one or more blocks of a component. - * - * The input samples are taken from the sample_data[] array starting at - * position start_row/start_col, and moving to the right for any additional - * blocks. The quantized coefficients are returned in coef_blocks[]. - */ - -METHODDEF(void) -forward_DCT (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks) -/* This version is used for integer DCT implementations. */ -{ - /* This routine is heavily used, so it's worth coding it tightly. */ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - forward_DCT_method_ptr do_dct = fdct->do_dct[compptr->component_index]; - DCTELEM * divisors = fdct->divisors[compptr->quant_tbl_no]; - DCTELEM workspace[DCTSIZE2]; /* work area for FDCT subroutine */ - JDIMENSION bi; - - sample_data += start_row; /* fold in the vertical offset once */ - - for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { - /* Perform the DCT */ - (*do_dct) (workspace, sample_data, start_col); - - /* Quantize/descale the coefficients, and store into coef_blocks[] */ - { register DCTELEM temp, qval; - register int i; - register JCOEFPTR output_ptr = coef_blocks[bi]; - - for (i = 0; i < DCTSIZE2; i++) { - qval = divisors[i]; - temp = workspace[i]; - /* Divide the coefficient value by qval, ensuring proper rounding. - * Since C does not specify the direction of rounding for negative - * quotients, we have to force the dividend positive for portability. - * - * In most files, at least half of the output values will be zero - * (at default quantization settings, more like three-quarters...) - * so we should ensure that this case is fast. On many machines, - * a comparison is enough cheaper than a divide to make a special test - * a win. Since both inputs will be nonnegative, we need only test - * for a < b to discover whether a/b is 0. - * If your machine's division is fast enough, define FAST_DIVIDE. - */ -#ifdef FAST_DIVIDE -#define DIVIDE_BY(a,b) a /= b -#else -#define DIVIDE_BY(a,b) if (a >= b) a /= b; else a = 0 -#endif - if (temp < 0) { - temp = -temp; - temp += qval>>1; /* for rounding */ - DIVIDE_BY(temp, qval); - temp = -temp; - } else { - temp += qval>>1; /* for rounding */ - DIVIDE_BY(temp, qval); - } - output_ptr[i] = (JCOEF) temp; - } - } - } -} - - -#ifdef DCT_FLOAT_SUPPORTED - -METHODDEF(void) -forward_DCT_float (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks) -/* This version is used for floating-point DCT implementations. */ -{ - /* This routine is heavily used, so it's worth coding it tightly. */ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - float_DCT_method_ptr do_dct = fdct->do_float_dct[compptr->component_index]; - FAST_FLOAT * divisors = fdct->float_divisors[compptr->quant_tbl_no]; - FAST_FLOAT workspace[DCTSIZE2]; /* work area for FDCT subroutine */ - JDIMENSION bi; - - sample_data += start_row; /* fold in the vertical offset once */ - - for (bi = 0; bi < num_blocks; bi++, start_col += compptr->DCT_h_scaled_size) { - /* Perform the DCT */ - (*do_dct) (workspace, sample_data, start_col); - - /* Quantize/descale the coefficients, and store into coef_blocks[] */ - { register FAST_FLOAT temp; - register int i; - register JCOEFPTR output_ptr = coef_blocks[bi]; - - for (i = 0; i < DCTSIZE2; i++) { - /* Apply the quantization and scaling factor */ - temp = workspace[i] * divisors[i]; - /* Round to nearest integer. - * Since C does not specify the direction of rounding for negative - * quotients, we have to force the dividend positive for portability. - * The maximum coefficient size is +-16K (for 12-bit data), so this - * code should work for either 16-bit or 32-bit ints. - */ - output_ptr[i] = (JCOEF) ((int) (temp + (FAST_FLOAT) 16384.5) - 16384); - } - } - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ - - -/* - * Initialize for a processing pass. - * Verify that all referenced Q-tables are present, and set up - * the divisor table for each one. - * In the current implementation, DCT of all components is done during - * the first pass, even if only some components will be output in the - * first scan. Hence all components should be examined here. - */ - -METHODDEF(void) -start_pass_fdctmgr (j_compress_ptr cinfo) -{ - my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct; - int ci, qtblno, i; - jpeg_component_info *compptr; - int method = 0; - JQUANT_TBL * qtbl; - DCTELEM * dtbl; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Select the proper DCT routine for this component's scaling */ - switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { -#ifdef DCT_SCALING_SUPPORTED - case ((1 << 8) + 1): - fdct->do_dct[ci] = jpeg_fdct_1x1; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_2x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((3 << 8) + 3): - fdct->do_dct[ci] = jpeg_fdct_3x3; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_4x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((5 << 8) + 5): - fdct->do_dct[ci] = jpeg_fdct_5x5; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_6x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((7 << 8) + 7): - fdct->do_dct[ci] = jpeg_fdct_7x7; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((9 << 8) + 9): - fdct->do_dct[ci] = jpeg_fdct_9x9; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((10 << 8) + 10): - fdct->do_dct[ci] = jpeg_fdct_10x10; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((11 << 8) + 11): - fdct->do_dct[ci] = jpeg_fdct_11x11; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((12 << 8) + 12): - fdct->do_dct[ci] = jpeg_fdct_12x12; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((13 << 8) + 13): - fdct->do_dct[ci] = jpeg_fdct_13x13; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((14 << 8) + 14): - fdct->do_dct[ci] = jpeg_fdct_14x14; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((15 << 8) + 15): - fdct->do_dct[ci] = jpeg_fdct_15x15; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((16 << 8) + 16): - fdct->do_dct[ci] = jpeg_fdct_16x16; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((16 << 8) + 8): - fdct->do_dct[ci] = jpeg_fdct_16x8; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((14 << 8) + 7): - fdct->do_dct[ci] = jpeg_fdct_14x7; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((12 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_12x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((10 << 8) + 5): - fdct->do_dct[ci] = jpeg_fdct_10x5; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((8 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_8x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 3): - fdct->do_dct[ci] = jpeg_fdct_6x3; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_4x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 1): - fdct->do_dct[ci] = jpeg_fdct_2x1; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((8 << 8) + 16): - fdct->do_dct[ci] = jpeg_fdct_8x16; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((7 << 8) + 14): - fdct->do_dct[ci] = jpeg_fdct_7x14; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((6 << 8) + 12): - fdct->do_dct[ci] = jpeg_fdct_6x12; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((5 << 8) + 10): - fdct->do_dct[ci] = jpeg_fdct_5x10; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((4 << 8) + 8): - fdct->do_dct[ci] = jpeg_fdct_4x8; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((3 << 8) + 6): - fdct->do_dct[ci] = jpeg_fdct_3x6; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((2 << 8) + 4): - fdct->do_dct[ci] = jpeg_fdct_2x4; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; - case ((1 << 8) + 2): - fdct->do_dct[ci] = jpeg_fdct_1x2; - method = JDCT_ISLOW; /* jfdctint uses islow-style table */ - break; -#endif - case ((DCTSIZE << 8) + DCTSIZE): - switch (cinfo->dct_method) { -#ifdef DCT_ISLOW_SUPPORTED - case JDCT_ISLOW: - fdct->do_dct[ci] = jpeg_fdct_islow; - method = JDCT_ISLOW; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - fdct->do_dct[ci] = jpeg_fdct_ifast; - method = JDCT_IFAST; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - fdct->do_float_dct[ci] = jpeg_fdct_float; - method = JDCT_FLOAT; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - break; - default: - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); - break; - } - qtblno = compptr->quant_tbl_no; - /* Make sure specified quantization table is present */ - if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || - cinfo->quant_tbl_ptrs[qtblno] == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); - qtbl = cinfo->quant_tbl_ptrs[qtblno]; - /* Compute divisors for this quant table */ - /* We may do this more than once for same table, but it's not a big deal */ - switch (method) { -#ifdef PROVIDE_ISLOW_TABLES - case JDCT_ISLOW: - /* For LL&M IDCT method, divisors are equal to raw quantization - * coefficients multiplied by 8 (to counteract scaling). - */ - if (fdct->divisors[qtblno] == NULL) { - fdct->divisors[qtblno] = (DCTELEM *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(DCTELEM)); - } - dtbl = fdct->divisors[qtblno]; - for (i = 0; i < DCTSIZE2; i++) { - dtbl[i] = ((DCTELEM) qtbl->quantval[i]) << 3; - } - fdct->pub.forward_DCT[ci] = forward_DCT; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - { - /* For AA&N IDCT method, divisors are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 8. - */ -#define CONST_BITS 14 - static const INT16 aanscales[DCTSIZE2] = { - /* precomputed values scaled up by 14 bits */ - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, - 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, - 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, - 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, - 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 - }; - SHIFT_TEMPS - - if (fdct->divisors[qtblno] == NULL) { - fdct->divisors[qtblno] = (DCTELEM *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(DCTELEM)); - } - dtbl = fdct->divisors[qtblno]; - for (i = 0; i < DCTSIZE2; i++) { - dtbl[i] = (DCTELEM) - DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], - (INT32) aanscales[i]), - CONST_BITS-3); - } - } - fdct->pub.forward_DCT[ci] = forward_DCT; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - { - /* For float AA&N IDCT method, divisors are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 8. - * What's actually stored is 1/divisor so that the inner loop can - * use a multiplication rather than a division. - */ - FAST_FLOAT * fdtbl; - int row, col; - static const double aanscalefactor[DCTSIZE] = { - 1.0, 1.387039845, 1.306562965, 1.175875602, - 1.0, 0.785694958, 0.541196100, 0.275899379 - }; - - if (fdct->float_divisors[qtblno] == NULL) { - fdct->float_divisors[qtblno] = (FAST_FLOAT *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - DCTSIZE2 * SIZEOF(FAST_FLOAT)); - } - fdtbl = fdct->float_divisors[qtblno]; - i = 0; - for (row = 0; row < DCTSIZE; row++) { - for (col = 0; col < DCTSIZE; col++) { - fdtbl[i] = (FAST_FLOAT) - (1.0 / (((double) qtbl->quantval[i] * - aanscalefactor[row] * aanscalefactor[col] * 8.0))); - i++; - } - } - } - fdct->pub.forward_DCT[ci] = forward_DCT_float; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - } -} - - -/* - * Initialize FDCT manager. - */ - -GLOBAL(void) -jinit_forward_dct (j_compress_ptr cinfo) -{ - my_fdct_ptr fdct; - int i; - - fdct = (my_fdct_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_fdct_controller)); - cinfo->fdct = (struct jpeg_forward_dct *) fdct; - fdct->pub.start_pass = start_pass_fdctmgr; - - /* Mark divisor tables unallocated */ - for (i = 0; i < NUM_QUANT_TBLS; i++) { - fdct->divisors[i] = NULL; -#ifdef DCT_FLOAT_SUPPORTED - fdct->float_divisors[i] = NULL; -#endif - } -} diff --git a/jpeg/jchuff.c b/jpeg/jchuff.c deleted file mode 100755 index 257d7aa..0000000 --- a/jpeg/jchuff.c +++ /dev/null @@ -1,1576 +0,0 @@ -/* - * jchuff.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2006-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains Huffman entropy encoding routines. - * Both sequential and progressive modes are supported in this single module. - * - * Much of the complexity here has to do with supporting output suspension. - * If the data destination module demands suspension, we want to be able to - * back up to the start of the current MCU. To do this, we copy state - * variables into local working storage, and update them back to the - * permanent JPEG objects only upon successful completion of an MCU. - * - * We do not support output suspension for the progressive JPEG mode, since - * the library currently does not allow multiple-scan files to be written - * with output suspension. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* The legal range of a DCT coefficient is - * -1024 .. +1023 for 8-bit data; - * -16384 .. +16383 for 12-bit data. - * Hence the magnitude should always fit in 10 or 14 bits respectively. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MAX_COEF_BITS 10 -#else -#define MAX_COEF_BITS 14 -#endif - -/* Derived data constructed for each Huffman table */ - -typedef struct { - unsigned int ehufco[256]; /* code for each symbol */ - char ehufsi[256]; /* length of code for each symbol */ - /* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */ -} c_derived_tbl; - - -/* Expanded entropy encoder object for Huffman encoding. - * - * The savable_state subrecord contains fields that change within an MCU, - * but must not be updated permanently until we complete the MCU. - */ - -typedef struct { - INT32 put_buffer; /* current bit-accumulation buffer */ - int put_bits; /* # of bits now in it */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ -} savable_state; - -/* This macro is to work around compilers with missing or broken - * structure assignment. You'll need to fix this code if you have - * such a compiler and you change MAX_COMPS_IN_SCAN. - */ - -#ifndef NO_STRUCT_ASSIGN -#define ASSIGN_STATE(dest,src) ((dest) = (src)) -#else -#if MAX_COMPS_IN_SCAN == 4 -#define ASSIGN_STATE(dest,src) \ - ((dest).put_buffer = (src).put_buffer, \ - (dest).put_bits = (src).put_bits, \ - (dest).last_dc_val[0] = (src).last_dc_val[0], \ - (dest).last_dc_val[1] = (src).last_dc_val[1], \ - (dest).last_dc_val[2] = (src).last_dc_val[2], \ - (dest).last_dc_val[3] = (src).last_dc_val[3]) -#endif -#endif - - -typedef struct { - struct jpeg_entropy_encoder pub; /* public fields */ - - savable_state saved; /* Bit buffer & DC state at start of MCU */ - - /* These fields are NOT loaded into local working state. */ - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - int next_restart_num; /* next restart number to write (0-7) */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; - c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; - - /* Statistics tables for optimization */ - long * dc_count_ptrs[NUM_HUFF_TBLS]; - long * ac_count_ptrs[NUM_HUFF_TBLS]; - - /* Following fields used only in progressive mode */ - - /* Mode flag: TRUE for optimization, FALSE for actual data output */ - boolean gather_statistics; - - /* next_output_byte/free_in_buffer are local copies of cinfo->dest fields. - */ - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - j_compress_ptr cinfo; /* link to cinfo (needed for dump_buffer) */ - - /* Coding status for AC components */ - int ac_tbl_no; /* the table number of the single component */ - unsigned int EOBRUN; /* run length of EOBs */ - unsigned int BE; /* # of buffered correction bits before MCU */ - char * bit_buffer; /* buffer for correction bits (1 per char) */ - /* packing correction bits tightly would save some space but cost time... */ -} huff_entropy_encoder; - -typedef huff_entropy_encoder * huff_entropy_ptr; - -/* Working state while writing an MCU (sequential mode). - * This struct contains all the fields that are needed by subroutines. - */ - -typedef struct { - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - savable_state cur; /* Current bit buffer & DC state */ - j_compress_ptr cinfo; /* dump_buffer needs access to this */ -} working_state; - -/* MAX_CORR_BITS is the number of bits the AC refinement correction-bit - * buffer can hold. Larger sizes may slightly improve compression, but - * 1000 is already well into the realm of overkill. - * The minimum safe size is 64 bits. - */ - -#define MAX_CORR_BITS 1000 /* Max # of correction bits I can buffer */ - -/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32. - * We assume that int right shift is unsigned if INT32 right shift is, - * which should be safe. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS int ishift_temp; -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -/* - * Compute the derived values for a Huffman table. - * This routine also performs some validation checks on the table. - */ - -LOCAL(void) -jpeg_make_c_derived_tbl (j_compress_ptr cinfo, boolean isDC, int tblno, - c_derived_tbl ** pdtbl) -{ - JHUFF_TBL *htbl; - c_derived_tbl *dtbl; - int p, i, l, lastp, si, maxsymbol; - char huffsize[257]; - unsigned int huffcode[257]; - unsigned int code; - - /* Note that huffsize[] and huffcode[] are filled in code-length order, - * paralleling the order of the symbols themselves in htbl->huffval[]. - */ - - /* Find the input Huffman table */ - if (tblno < 0 || tblno >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - htbl = - isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - - /* Allocate a workspace if we haven't already done so. */ - if (*pdtbl == NULL) - *pdtbl = (c_derived_tbl *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(c_derived_tbl)); - dtbl = *pdtbl; - - /* Figure C.1: make table of Huffman code length for each symbol */ - - p = 0; - for (l = 1; l <= 16; l++) { - i = (int) htbl->bits[l]; - if (i < 0 || p + i > 256) /* protect against table overrun */ - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - while (i--) - huffsize[p++] = (char) l; - } - huffsize[p] = 0; - lastp = p; - - /* Figure C.2: generate the codes themselves */ - /* We also validate that the counts represent a legal Huffman code tree. */ - - code = 0; - si = huffsize[0]; - p = 0; - while (huffsize[p]) { - while (((int) huffsize[p]) == si) { - huffcode[p++] = code; - code++; - } - /* code is now 1 more than the last code used for codelength si; but - * it must still fit in si bits, since no code is allowed to be all ones. - */ - if (((INT32) code) >= (((INT32) 1) << si)) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - code <<= 1; - si++; - } - - /* Figure C.3: generate encoding tables */ - /* These are code and size indexed by symbol value */ - - /* Set all codeless symbols to have code length 0; - * this lets us detect duplicate VAL entries here, and later - * allows emit_bits to detect any attempt to emit such symbols. - */ - MEMZERO(dtbl->ehufsi, SIZEOF(dtbl->ehufsi)); - - /* This is also a convenient place to check for out-of-range - * and duplicated VAL entries. We allow 0..255 for AC symbols - * but only 0..15 for DC. (We could constrain them further - * based on data depth and mode, but this seems enough.) - */ - maxsymbol = isDC ? 15 : 255; - - for (p = 0; p < lastp; p++) { - i = htbl->huffval[p]; - if (i < 0 || i > maxsymbol || dtbl->ehufsi[i]) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - dtbl->ehufco[i] = huffcode[p]; - dtbl->ehufsi[i] = huffsize[p]; - } -} - - -/* Outputting bytes to the file. - * NB: these must be called only when actually outputting, - * that is, entropy->gather_statistics == FALSE. - */ - -/* Emit a byte, taking 'action' if must suspend. */ -#define emit_byte_s(state,val,action) \ - { *(state)->next_output_byte++ = (JOCTET) (val); \ - if (--(state)->free_in_buffer == 0) \ - if (! dump_buffer_s(state)) \ - { action; } } - -/* Emit a byte */ -#define emit_byte_e(entropy,val) \ - { *(entropy)->next_output_byte++ = (JOCTET) (val); \ - if (--(entropy)->free_in_buffer == 0) \ - dump_buffer_e(entropy); } - - -LOCAL(boolean) -dump_buffer_s (working_state * state) -/* Empty the output buffer; return TRUE if successful, FALSE if must suspend */ -{ - struct jpeg_destination_mgr * dest = state->cinfo->dest; - - if (! (*dest->empty_output_buffer) (state->cinfo)) - return FALSE; - /* After a successful buffer dump, must reset buffer pointers */ - state->next_output_byte = dest->next_output_byte; - state->free_in_buffer = dest->free_in_buffer; - return TRUE; -} - - -LOCAL(void) -dump_buffer_e (huff_entropy_ptr entropy) -/* Empty the output buffer; we do not support suspension in this case. */ -{ - struct jpeg_destination_mgr * dest = entropy->cinfo->dest; - - if (! (*dest->empty_output_buffer) (entropy->cinfo)) - ERREXIT(entropy->cinfo, JERR_CANT_SUSPEND); - /* After a successful buffer dump, must reset buffer pointers */ - entropy->next_output_byte = dest->next_output_byte; - entropy->free_in_buffer = dest->free_in_buffer; -} - - -/* Outputting bits to the file */ - -/* Only the right 24 bits of put_buffer are used; the valid bits are - * left-justified in this part. At most 16 bits can be passed to emit_bits - * in one call, and we never retain more than 7 bits in put_buffer - * between calls, so 24 bits are sufficient. - */ - -INLINE -LOCAL(boolean) -emit_bits_s (working_state * state, unsigned int code, int size) -/* Emit some bits; return TRUE if successful, FALSE if must suspend */ -{ - /* This routine is heavily used, so it's worth coding tightly. */ - register INT32 put_buffer = (INT32) code; - register int put_bits = state->cur.put_bits; - - /* if size is 0, caller used an invalid Huffman table entry */ - if (size == 0) - ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE); - - put_buffer &= (((INT32) 1)<cur.put_buffer; /* and merge with old buffer contents */ - - while (put_bits >= 8) { - int c = (int) ((put_buffer >> 16) & 0xFF); - - emit_byte_s(state, c, return FALSE); - if (c == 0xFF) { /* need to stuff a zero byte? */ - emit_byte_s(state, 0, return FALSE); - } - put_buffer <<= 8; - put_bits -= 8; - } - - state->cur.put_buffer = put_buffer; /* update state variables */ - state->cur.put_bits = put_bits; - - return TRUE; -} - - -INLINE -LOCAL(void) -emit_bits_e (huff_entropy_ptr entropy, unsigned int code, int size) -/* Emit some bits, unless we are in gather mode */ -{ - /* This routine is heavily used, so it's worth coding tightly. */ - register INT32 put_buffer = (INT32) code; - register int put_bits = entropy->saved.put_bits; - - /* if size is 0, caller used an invalid Huffman table entry */ - if (size == 0) - ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); - - if (entropy->gather_statistics) - return; /* do nothing if we're only getting stats */ - - put_buffer &= (((INT32) 1)<saved.put_buffer; - - while (put_bits >= 8) { - int c = (int) ((put_buffer >> 16) & 0xFF); - - emit_byte_e(entropy, c); - if (c == 0xFF) { /* need to stuff a zero byte? */ - emit_byte_e(entropy, 0); - } - put_buffer <<= 8; - put_bits -= 8; - } - - entropy->saved.put_buffer = put_buffer; /* update variables */ - entropy->saved.put_bits = put_bits; -} - - -LOCAL(boolean) -flush_bits_s (working_state * state) -{ - if (! emit_bits_s(state, 0x7F, 7)) /* fill any partial byte with ones */ - return FALSE; - state->cur.put_buffer = 0; /* and reset bit-buffer to empty */ - state->cur.put_bits = 0; - return TRUE; -} - - -LOCAL(void) -flush_bits_e (huff_entropy_ptr entropy) -{ - emit_bits_e(entropy, 0x7F, 7); /* fill any partial byte with ones */ - entropy->saved.put_buffer = 0; /* and reset bit-buffer to empty */ - entropy->saved.put_bits = 0; -} - - -/* - * Emit (or just count) a Huffman symbol. - */ - -INLINE -LOCAL(void) -emit_dc_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) -{ - if (entropy->gather_statistics) - entropy->dc_count_ptrs[tbl_no][symbol]++; - else { - c_derived_tbl * tbl = entropy->dc_derived_tbls[tbl_no]; - emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); - } -} - - -INLINE -LOCAL(void) -emit_ac_symbol (huff_entropy_ptr entropy, int tbl_no, int symbol) -{ - if (entropy->gather_statistics) - entropy->ac_count_ptrs[tbl_no][symbol]++; - else { - c_derived_tbl * tbl = entropy->ac_derived_tbls[tbl_no]; - emit_bits_e(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]); - } -} - - -/* - * Emit bits from a correction bit buffer. - */ - -LOCAL(void) -emit_buffered_bits (huff_entropy_ptr entropy, char * bufstart, - unsigned int nbits) -{ - if (entropy->gather_statistics) - return; /* no real work */ - - while (nbits > 0) { - emit_bits_e(entropy, (unsigned int) (*bufstart), 1); - bufstart++; - nbits--; - } -} - - -/* - * Emit any pending EOBRUN symbol. - */ - -LOCAL(void) -emit_eobrun (huff_entropy_ptr entropy) -{ - register int temp, nbits; - - if (entropy->EOBRUN > 0) { /* if there is any pending EOBRUN */ - temp = entropy->EOBRUN; - nbits = 0; - while ((temp >>= 1)) - nbits++; - /* safety check: shouldn't happen given limited correction-bit buffer */ - if (nbits > 14) - ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE); - - emit_ac_symbol(entropy, entropy->ac_tbl_no, nbits << 4); - if (nbits) - emit_bits_e(entropy, entropy->EOBRUN, nbits); - - entropy->EOBRUN = 0; - - /* Emit any buffered correction bits */ - emit_buffered_bits(entropy, entropy->bit_buffer, entropy->BE); - entropy->BE = 0; - } -} - - -/* - * Emit a restart marker & resynchronize predictions. - */ - -LOCAL(boolean) -emit_restart_s (working_state * state, int restart_num) -{ - int ci; - - if (! flush_bits_s(state)) - return FALSE; - - emit_byte_s(state, 0xFF, return FALSE); - emit_byte_s(state, JPEG_RST0 + restart_num, return FALSE); - - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < state->cinfo->comps_in_scan; ci++) - state->cur.last_dc_val[ci] = 0; - - /* The restart counter is not updated until we successfully write the MCU. */ - - return TRUE; -} - - -LOCAL(void) -emit_restart_e (huff_entropy_ptr entropy, int restart_num) -{ - int ci; - - emit_eobrun(entropy); - - if (! entropy->gather_statistics) { - flush_bits_e(entropy); - emit_byte_e(entropy, 0xFF); - emit_byte_e(entropy, JPEG_RST0 + restart_num); - } - - if (entropy->cinfo->Ss == 0) { - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < entropy->cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - } else { - /* Re-initialize all AC-related fields to 0 */ - entropy->EOBRUN = 0; - entropy->BE = 0; - } -} - - -/* - * MCU encoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp, temp2; - register int nbits; - int blkn, ci; - int Al = cinfo->Al; - JBLOCKROW block; - jpeg_component_info * compptr; - ISHIFT_TEMPS - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Compute the DC value after the required point transform by Al. - * This is simply an arithmetic right shift. - */ - temp2 = IRIGHT_SHIFT((int) ((*block)[0]), Al); - - /* DC differences are figured on the point-transformed values. */ - temp = temp2 - entropy->saved.last_dc_val[ci]; - entropy->saved.last_dc_val[ci] = temp2; - - /* Encode the DC coefficient difference per section G.1.2.1 */ - temp2 = temp; - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* For a negative input, want temp2 = bitwise complement of abs(input) */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count/emit the Huffman-coded symbol for the number of bits */ - emit_dc_symbol(entropy, compptr->dc_tbl_no, nbits); - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (nbits) /* emit_bits rejects calls with size 0 */ - emit_bits_e(entropy, (unsigned int) temp2, nbits); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp, temp2; - register int nbits; - register int r, k; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - - /* Encode the AC coefficients per section G.1.2.2, fig. G.3 */ - - r = 0; /* r = run length of zeros */ - - for (k = cinfo->Ss; k <= Se; k++) { - if ((temp = (*block)[natural_order[k]]) == 0) { - r++; - continue; - } - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value; so the code is - * interwoven with finding the abs value (temp) and output bits (temp2). - */ - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - temp >>= Al; /* apply the point transform */ - /* For a negative coef, want temp2 = bitwise complement of abs(coef) */ - temp2 = ~temp; - } else { - temp >>= Al; /* apply the point transform */ - temp2 = temp; - } - /* Watch out for case that nonzero coef is zero after point transform */ - if (temp == 0) { - r++; - continue; - } - - /* Emit any pending EOBRUN */ - if (entropy->EOBRUN > 0) - emit_eobrun(entropy); - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); - r -= 16; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count/emit Huffman symbol for run length / number of bits */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits); - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - emit_bits_e(entropy, (unsigned int) temp2, nbits); - - r = 0; /* reset zero run length */ - } - - if (r > 0) { /* If there are trailing zeroes, */ - entropy->EOBRUN++; /* count an EOB */ - if (entropy->EOBRUN == 0x7FFF) - emit_eobrun(entropy); /* force it out to avoid overflow */ - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for DC successive approximation refinement scan. - * Note: we assume such scans can be multi-component, although the spec - * is not very clear on the point. - */ - -METHODDEF(boolean) -encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp; - int blkn; - int Al = cinfo->Al; - JBLOCKROW block; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - - /* We simply emit the Al'th bit of the DC coefficient value. */ - temp = (*block)[0]; - emit_bits_e(entropy, (unsigned int) (temp >> Al), 1); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * MCU encoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int temp; - register int r, k; - int EOB; - char *BR_buffer; - unsigned int BR; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - int absvalues[DCTSIZE2]; - - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) - if (entropy->restarts_to_go == 0) - emit_restart_e(entropy, entropy->next_restart_num); - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Encode the MCU data block */ - block = MCU_data[0]; - - /* It is convenient to make a pre-pass to determine the transformed - * coefficients' absolute values and the EOB position. - */ - EOB = 0; - for (k = cinfo->Ss; k <= Se; k++) { - temp = (*block)[natural_order[k]]; - /* We must apply the point transform by Al. For AC coefficients this - * is an integer division with rounding towards 0. To do this portably - * in C, we shift after obtaining the absolute value. - */ - if (temp < 0) - temp = -temp; /* temp is abs value of input */ - temp >>= Al; /* apply the point transform */ - absvalues[k] = temp; /* save abs value for main pass */ - if (temp == 1) - EOB = k; /* EOB = index of last newly-nonzero coef */ - } - - /* Encode the AC coefficients per section G.1.2.3, fig. G.7 */ - - r = 0; /* r = run length of zeros */ - BR = 0; /* BR = count of buffered bits added now */ - BR_buffer = entropy->bit_buffer + entropy->BE; /* Append bits to buffer */ - - for (k = cinfo->Ss; k <= Se; k++) { - if ((temp = absvalues[k]) == 0) { - r++; - continue; - } - - /* Emit any required ZRLs, but not if they can be folded into EOB */ - while (r > 15 && k <= EOB) { - /* emit any pending EOBRUN and the BE correction bits */ - emit_eobrun(entropy); - /* Emit ZRL */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, 0xF0); - r -= 16; - /* Emit buffered correction bits that must be associated with ZRL */ - emit_buffered_bits(entropy, BR_buffer, BR); - BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ - BR = 0; - } - - /* If the coef was previously nonzero, it only needs a correction bit. - * NOTE: a straight translation of the spec's figure G.7 would suggest - * that we also need to test r > 15. But if r > 15, we can only get here - * if k > EOB, which implies that this coefficient is not 1. - */ - if (temp > 1) { - /* The correction bit is the next bit of the absolute value. */ - BR_buffer[BR++] = (char) (temp & 1); - continue; - } - - /* Emit any pending EOBRUN and the BE correction bits */ - emit_eobrun(entropy); - - /* Count/emit Huffman symbol for run length / number of bits */ - emit_ac_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1); - - /* Emit output bit for newly-nonzero coef */ - temp = ((*block)[natural_order[k]] < 0) ? 0 : 1; - emit_bits_e(entropy, (unsigned int) temp, 1); - - /* Emit buffered correction bits that must be associated with this code */ - emit_buffered_bits(entropy, BR_buffer, BR); - BR_buffer = entropy->bit_buffer; /* BE bits are gone now */ - BR = 0; - r = 0; /* reset zero run length */ - } - - if (r > 0 || BR > 0) { /* If there are trailing zeroes, */ - entropy->EOBRUN++; /* count an EOB */ - entropy->BE += BR; /* concat my correction bits to older ones */ - /* We force out the EOB if we risk either: - * 1. overflow of the EOB counter; - * 2. overflow of the correction bit buffer during the next MCU. - */ - if (entropy->EOBRUN == 0x7FFF || entropy->BE > (MAX_CORR_BITS-DCTSIZE2+1)) - emit_eobrun(entropy); - } - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* Encode a single block's worth of coefficients */ - -LOCAL(boolean) -encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val, - c_derived_tbl *dctbl, c_derived_tbl *actbl) -{ - register int temp, temp2; - register int nbits; - register int k, r, i; - int Se = state->cinfo->lim_Se; - const int * natural_order = state->cinfo->natural_order; - - /* Encode the DC coefficient difference per section F.1.2.1 */ - - temp = temp2 = block[0] - last_dc_val; - - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* For a negative input, want temp2 = bitwise complement of abs(input) */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); - - /* Emit the Huffman-coded symbol for the number of bits */ - if (! emit_bits_s(state, dctbl->ehufco[nbits], dctbl->ehufsi[nbits])) - return FALSE; - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (nbits) /* emit_bits rejects calls with size 0 */ - if (! emit_bits_s(state, (unsigned int) temp2, nbits)) - return FALSE; - - /* Encode the AC coefficients per section F.1.2.2 */ - - r = 0; /* r = run length of zeros */ - - for (k = 1; k <= Se; k++) { - if ((temp = block[natural_order[k]]) == 0) { - r++; - } else { - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - if (! emit_bits_s(state, actbl->ehufco[0xF0], actbl->ehufsi[0xF0])) - return FALSE; - r -= 16; - } - - temp2 = temp; - if (temp < 0) { - temp = -temp; /* temp is abs value of input */ - /* This code assumes we are on a two's complement machine */ - temp2--; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(state->cinfo, JERR_BAD_DCT_COEF); - - /* Emit Huffman symbol for run length / number of bits */ - i = (r << 4) + nbits; - if (! emit_bits_s(state, actbl->ehufco[i], actbl->ehufsi[i])) - return FALSE; - - /* Emit that number of bits of the value, if positive, */ - /* or the complement of its magnitude, if negative. */ - if (! emit_bits_s(state, (unsigned int) temp2, nbits)) - return FALSE; - - r = 0; - } - } - - /* If the last coef(s) were zero, emit an end-of-block code */ - if (r > 0) - if (! emit_bits_s(state, actbl->ehufco[0], actbl->ehufsi[0])) - return FALSE; - - return TRUE; -} - - -/* - * Encode and output one MCU's worth of Huffman-compressed coefficients. - */ - -METHODDEF(boolean) -encode_mcu_huff (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - working_state state; - int blkn, ci; - jpeg_component_info * compptr; - - /* Load up working state */ - state.next_output_byte = cinfo->dest->next_output_byte; - state.free_in_buffer = cinfo->dest->free_in_buffer; - ASSIGN_STATE(state.cur, entropy->saved); - state.cinfo = cinfo; - - /* Emit restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! emit_restart_s(&state, entropy->next_restart_num)) - return FALSE; - } - - /* Encode the MCU data blocks */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - if (! encode_one_block(&state, - MCU_data[blkn][0], state.cur.last_dc_val[ci], - entropy->dc_derived_tbls[compptr->dc_tbl_no], - entropy->ac_derived_tbls[compptr->ac_tbl_no])) - return FALSE; - /* Update last_dc_val */ - state.cur.last_dc_val[ci] = MCU_data[blkn][0][0]; - } - - /* Completed MCU, so update state */ - cinfo->dest->next_output_byte = state.next_output_byte; - cinfo->dest->free_in_buffer = state.free_in_buffer; - ASSIGN_STATE(entropy->saved, state.cur); - - /* Update restart-interval state too */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num++; - entropy->next_restart_num &= 7; - } - entropy->restarts_to_go--; - } - - return TRUE; -} - - -/* - * Finish up at the end of a Huffman-compressed scan. - */ - -METHODDEF(void) -finish_pass_huff (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - working_state state; - - if (cinfo->progressive_mode) { - entropy->next_output_byte = cinfo->dest->next_output_byte; - entropy->free_in_buffer = cinfo->dest->free_in_buffer; - - /* Flush out any buffered data */ - emit_eobrun(entropy); - flush_bits_e(entropy); - - cinfo->dest->next_output_byte = entropy->next_output_byte; - cinfo->dest->free_in_buffer = entropy->free_in_buffer; - } else { - /* Load up working state ... flush_bits needs it */ - state.next_output_byte = cinfo->dest->next_output_byte; - state.free_in_buffer = cinfo->dest->free_in_buffer; - ASSIGN_STATE(state.cur, entropy->saved); - state.cinfo = cinfo; - - /* Flush out the last data */ - if (! flush_bits_s(&state)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - - /* Update state */ - cinfo->dest->next_output_byte = state.next_output_byte; - cinfo->dest->free_in_buffer = state.free_in_buffer; - ASSIGN_STATE(entropy->saved, state.cur); - } -} - - -/* - * Huffman coding optimization. - * - * We first scan the supplied data and count the number of uses of each symbol - * that is to be Huffman-coded. (This process MUST agree with the code above.) - * Then we build a Huffman coding tree for the observed counts. - * Symbols which are not needed at all for the particular image are not - * assigned any code, which saves space in the DHT marker as well as in - * the compressed data. - */ - - -/* Process a single block's worth of coefficients */ - -LOCAL(void) -htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val, - long dc_counts[], long ac_counts[]) -{ - register int temp; - register int nbits; - register int k, r; - int Se = cinfo->lim_Se; - const int * natural_order = cinfo->natural_order; - - /* Encode the DC coefficient difference per section F.1.2.1 */ - - temp = block[0] - last_dc_val; - if (temp < 0) - temp = -temp; - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 0; - while (temp) { - nbits++; - temp >>= 1; - } - /* Check for out-of-range coefficient values. - * Since we're encoding a difference, the range limit is twice as much. - */ - if (nbits > MAX_COEF_BITS+1) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count the Huffman symbol for the number of bits */ - dc_counts[nbits]++; - - /* Encode the AC coefficients per section F.1.2.2 */ - - r = 0; /* r = run length of zeros */ - - for (k = 1; k <= Se; k++) { - if ((temp = block[natural_order[k]]) == 0) { - r++; - } else { - /* if run length > 15, must emit special run-length-16 codes (0xF0) */ - while (r > 15) { - ac_counts[0xF0]++; - r -= 16; - } - - /* Find the number of bits needed for the magnitude of the coefficient */ - if (temp < 0) - temp = -temp; - - /* Find the number of bits needed for the magnitude of the coefficient */ - nbits = 1; /* there must be at least one 1 bit */ - while ((temp >>= 1)) - nbits++; - /* Check for out-of-range coefficient values */ - if (nbits > MAX_COEF_BITS) - ERREXIT(cinfo, JERR_BAD_DCT_COEF); - - /* Count Huffman symbol for run length / number of bits */ - ac_counts[(r << 4) + nbits]++; - - r = 0; - } - } - - /* If the last coef(s) were zero, emit an end-of-block code */ - if (r > 0) - ac_counts[0]++; -} - - -/* - * Trial-encode one MCU's worth of Huffman-compressed coefficients. - * No data is actually output, so no suspension return is possible. - */ - -METHODDEF(boolean) -encode_mcu_gather (j_compress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int blkn, ci; - jpeg_component_info * compptr; - - /* Take care of restart intervals if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) { - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - /* Update restart state */ - entropy->restarts_to_go = cinfo->restart_interval; - } - entropy->restarts_to_go--; - } - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - htest_one_block(cinfo, MCU_data[blkn][0], entropy->saved.last_dc_val[ci], - entropy->dc_count_ptrs[compptr->dc_tbl_no], - entropy->ac_count_ptrs[compptr->ac_tbl_no]); - entropy->saved.last_dc_val[ci] = MCU_data[blkn][0][0]; - } - - return TRUE; -} - - -/* - * Generate the best Huffman code table for the given counts, fill htbl. - * - * The JPEG standard requires that no symbol be assigned a codeword of all - * one bits (so that padding bits added at the end of a compressed segment - * can't look like a valid code). Because of the canonical ordering of - * codewords, this just means that there must be an unused slot in the - * longest codeword length category. Section K.2 of the JPEG spec suggests - * reserving such a slot by pretending that symbol 256 is a valid symbol - * with count 1. In theory that's not optimal; giving it count zero but - * including it in the symbol set anyway should give a better Huffman code. - * But the theoretically better code actually seems to come out worse in - * practice, because it produces more all-ones bytes (which incur stuffed - * zero bytes in the final file). In any case the difference is tiny. - * - * The JPEG standard requires Huffman codes to be no more than 16 bits long. - * If some symbols have a very small but nonzero probability, the Huffman tree - * must be adjusted to meet the code length restriction. We currently use - * the adjustment method suggested in JPEG section K.2. This method is *not* - * optimal; it may not choose the best possible limited-length code. But - * typically only very-low-frequency symbols will be given less-than-optimal - * lengths, so the code is almost optimal. Experimental comparisons against - * an optimal limited-length-code algorithm indicate that the difference is - * microscopic --- usually less than a hundredth of a percent of total size. - * So the extra complexity of an optimal algorithm doesn't seem worthwhile. - */ - -LOCAL(void) -jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]) -{ -#define MAX_CLEN 32 /* assumed maximum initial code length */ - UINT8 bits[MAX_CLEN+1]; /* bits[k] = # of symbols with code length k */ - int codesize[257]; /* codesize[k] = code length of symbol k */ - int others[257]; /* next symbol in current branch of tree */ - int c1, c2; - int p, i, j; - long v; - - /* This algorithm is explained in section K.2 of the JPEG standard */ - - MEMZERO(bits, SIZEOF(bits)); - MEMZERO(codesize, SIZEOF(codesize)); - for (i = 0; i < 257; i++) - others[i] = -1; /* init links to empty */ - - freq[256] = 1; /* make sure 256 has a nonzero count */ - /* Including the pseudo-symbol 256 in the Huffman procedure guarantees - * that no real symbol is given code-value of all ones, because 256 - * will be placed last in the largest codeword category. - */ - - /* Huffman's basic algorithm to assign optimal code lengths to symbols */ - - for (;;) { - /* Find the smallest nonzero frequency, set c1 = its symbol */ - /* In case of ties, take the larger symbol number */ - c1 = -1; - v = 1000000000L; - for (i = 0; i <= 256; i++) { - if (freq[i] && freq[i] <= v) { - v = freq[i]; - c1 = i; - } - } - - /* Find the next smallest nonzero frequency, set c2 = its symbol */ - /* In case of ties, take the larger symbol number */ - c2 = -1; - v = 1000000000L; - for (i = 0; i <= 256; i++) { - if (freq[i] && freq[i] <= v && i != c1) { - v = freq[i]; - c2 = i; - } - } - - /* Done if we've merged everything into one frequency */ - if (c2 < 0) - break; - - /* Else merge the two counts/trees */ - freq[c1] += freq[c2]; - freq[c2] = 0; - - /* Increment the codesize of everything in c1's tree branch */ - codesize[c1]++; - while (others[c1] >= 0) { - c1 = others[c1]; - codesize[c1]++; - } - - others[c1] = c2; /* chain c2 onto c1's tree branch */ - - /* Increment the codesize of everything in c2's tree branch */ - codesize[c2]++; - while (others[c2] >= 0) { - c2 = others[c2]; - codesize[c2]++; - } - } - - /* Now count the number of symbols of each code length */ - for (i = 0; i <= 256; i++) { - if (codesize[i]) { - /* The JPEG standard seems to think that this can't happen, */ - /* but I'm paranoid... */ - if (codesize[i] > MAX_CLEN) - ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW); - - bits[codesize[i]]++; - } - } - - /* JPEG doesn't allow symbols with code lengths over 16 bits, so if the pure - * Huffman procedure assigned any such lengths, we must adjust the coding. - * Here is what the JPEG spec says about how this next bit works: - * Since symbols are paired for the longest Huffman code, the symbols are - * removed from this length category two at a time. The prefix for the pair - * (which is one bit shorter) is allocated to one of the pair; then, - * skipping the BITS entry for that prefix length, a code word from the next - * shortest nonzero BITS entry is converted into a prefix for two code words - * one bit longer. - */ - - for (i = MAX_CLEN; i > 16; i--) { - while (bits[i] > 0) { - j = i - 2; /* find length of new prefix to be used */ - while (bits[j] == 0) - j--; - - bits[i] -= 2; /* remove two symbols */ - bits[i-1]++; /* one goes in this length */ - bits[j+1] += 2; /* two new symbols in this length */ - bits[j]--; /* symbol of this length is now a prefix */ - } - } - - /* Remove the count for the pseudo-symbol 256 from the largest codelength */ - while (bits[i] == 0) /* find largest codelength still in use */ - i--; - bits[i]--; - - /* Return final symbol counts (only for lengths 0..16) */ - MEMCOPY(htbl->bits, bits, SIZEOF(htbl->bits)); - - /* Return a list of the symbols sorted by code length */ - /* It's not real clear to me why we don't need to consider the codelength - * changes made above, but the JPEG spec seems to think this works. - */ - p = 0; - for (i = 1; i <= MAX_CLEN; i++) { - for (j = 0; j <= 255; j++) { - if (codesize[j] == i) { - htbl->huffval[p] = (UINT8) j; - p++; - } - } - } - - /* Set sent_table FALSE so updated table will be written to JPEG file. */ - htbl->sent_table = FALSE; -} - - -/* - * Finish up a statistics-gathering pass and create the new Huffman tables. - */ - -METHODDEF(void) -finish_pass_gather (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - JHUFF_TBL **htblptr; - boolean did_dc[NUM_HUFF_TBLS]; - boolean did_ac[NUM_HUFF_TBLS]; - - /* It's important not to apply jpeg_gen_optimal_table more than once - * per table, because it clobbers the input frequency counts! - */ - if (cinfo->progressive_mode) - /* Flush out buffered data (all we care about is counting the EOB symbol) */ - emit_eobrun(entropy); - - MEMZERO(did_dc, SIZEOF(did_dc)); - MEMZERO(did_ac, SIZEOF(did_ac)); - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (! did_dc[tbl]) { - htblptr = & cinfo->dc_huff_tbl_ptrs[tbl]; - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[tbl]); - did_dc[tbl] = TRUE; - } - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (! did_ac[tbl]) { - htblptr = & cinfo->ac_huff_tbl_ptrs[tbl]; - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[tbl]); - did_ac[tbl] = TRUE; - } - } - } -} - - -/* - * Initialize for a Huffman-compressed scan. - * If gather_statistics is TRUE, we do not output anything during the scan, - * just count the Huffman symbols used and generate Huffman code tables. - */ - -METHODDEF(void) -start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (gather_statistics) - entropy->pub.finish_pass = finish_pass_gather; - else - entropy->pub.finish_pass = finish_pass_huff; - - if (cinfo->progressive_mode) { - entropy->cinfo = cinfo; - entropy->gather_statistics = gather_statistics; - - /* We assume jcmaster.c already validated the scan parameters. */ - - /* Select execution routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_first; - else - entropy->pub.encode_mcu = encode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.encode_mcu = encode_mcu_DC_refine; - else { - entropy->pub.encode_mcu = encode_mcu_AC_refine; - /* AC refinement needs a correction bit buffer */ - if (entropy->bit_buffer == NULL) - entropy->bit_buffer = (char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - MAX_CORR_BITS * SIZEOF(char)); - } - } - - /* Initialize AC stuff */ - entropy->ac_tbl_no = cinfo->cur_comp_info[0]->ac_tbl_no; - entropy->EOBRUN = 0; - entropy->BE = 0; - } else { - if (gather_statistics) - entropy->pub.encode_mcu = encode_mcu_gather; - else - entropy->pub.encode_mcu = encode_mcu_huff; - } - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) { - tbl = compptr->dc_tbl_no; - if (gather_statistics) { - /* Check for invalid table index */ - /* (make_c_derived_tbl does this in the other path) */ - if (tbl < 0 || tbl >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); - /* Allocate and zero the statistics tables */ - /* Note that jpeg_gen_optimal_table expects 257 entries in each table! */ - if (entropy->dc_count_ptrs[tbl] == NULL) - entropy->dc_count_ptrs[tbl] = (long *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 257 * SIZEOF(long)); - MEMZERO(entropy->dc_count_ptrs[tbl], 257 * SIZEOF(long)); - } else { - /* Compute derived values for Huffman tables */ - /* We may do this more than once for a table, but it's not expensive */ - jpeg_make_c_derived_tbl(cinfo, TRUE, tbl, - & entropy->dc_derived_tbls[tbl]); - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - /* AC needs no table when not present */ - if (cinfo->Se) { - tbl = compptr->ac_tbl_no; - if (gather_statistics) { - if (tbl < 0 || tbl >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl); - if (entropy->ac_count_ptrs[tbl] == NULL) - entropy->ac_count_ptrs[tbl] = (long *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 257 * SIZEOF(long)); - MEMZERO(entropy->ac_count_ptrs[tbl], 257 * SIZEOF(long)); - } else { - jpeg_make_c_derived_tbl(cinfo, FALSE, tbl, - & entropy->ac_derived_tbls[tbl]); - } - } - } - - /* Initialize bit buffer to empty */ - entropy->saved.put_buffer = 0; - entropy->saved.put_bits = 0; - - /* Initialize restart stuff */ - entropy->restarts_to_go = cinfo->restart_interval; - entropy->next_restart_num = 0; -} - - -/* - * Module initialization routine for Huffman entropy encoding. - */ - -GLOBAL(void) -jinit_huff_encoder (j_compress_ptr cinfo) -{ - huff_entropy_ptr entropy; - int i; - - entropy = (huff_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(huff_entropy_encoder)); - cinfo->entropy = (struct jpeg_entropy_encoder *) entropy; - entropy->pub.start_pass = start_pass_huff; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - entropy->dc_count_ptrs[i] = entropy->ac_count_ptrs[i] = NULL; - } - - if (cinfo->progressive_mode) - entropy->bit_buffer = NULL; /* needed only in AC refinement scan */ -} diff --git a/jpeg/jcinit.c b/jpeg/jcinit.c deleted file mode 100755 index 0ba310f..0000000 --- a/jpeg/jcinit.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * jcinit.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains initialization logic for the JPEG compressor. - * This routine is in charge of selecting the modules to be executed and - * making an initialization call to each one. - * - * Logically, this code belongs in jcmaster.c. It's split out because - * linking this routine implies linking the entire compression library. - * For a transcoding-only application, we want to be able to use jcmaster.c - * without linking in the whole library. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Master selection of compression modules. - * This is done once at the start of processing an image. We determine - * which modules will be used and give them appropriate initialization calls. - */ - -GLOBAL(void) -jinit_compress_master (j_compress_ptr cinfo) -{ - /* Initialize master control (includes parameter checking/processing) */ - jinit_c_master_control(cinfo, FALSE /* full compression */); - - /* Preprocessing */ - if (! cinfo->raw_data_in) { - jinit_color_converter(cinfo); - jinit_downsampler(cinfo); - jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */); - } - /* Forward DCT */ - jinit_forward_dct(cinfo); - /* Entropy encoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_encoder(cinfo); - else { - jinit_huff_encoder(cinfo); - } - - /* Need a full-image coefficient buffer in any multi-pass mode. */ - jinit_c_coef_controller(cinfo, - (boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding)); - jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */); - - jinit_marker_writer(cinfo); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Write the datastream header (SOI) immediately. - * Frame and scan headers are postponed till later. - * This lets application insert special markers after the SOI. - */ - (*cinfo->marker->write_file_header) (cinfo); -} diff --git a/jpeg/jcmainct.c b/jpeg/jcmainct.c deleted file mode 100755 index 7de75d1..0000000 --- a/jpeg/jcmainct.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * jcmainct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the main buffer controller for compression. - * The main buffer lies between the pre-processor and the JPEG - * compressor proper; it holds downsampled data in the JPEG colorspace. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Note: currently, there is no operating mode in which a full-image buffer - * is needed at this step. If there were, that mode could not be used with - * "raw data" input, since this module is bypassed in that case. However, - * we've left the code here for possible use in special applications. - */ -#undef FULL_MAIN_BUFFER_SUPPORTED - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_main_controller pub; /* public fields */ - - JDIMENSION cur_iMCU_row; /* number of current iMCU row */ - JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */ - boolean suspended; /* remember if we suspended output */ - J_BUF_MODE pass_mode; /* current operating mode */ - - /* If using just a strip buffer, this points to the entire set of buffers - * (we allocate one for each component). In the full-image case, this - * points to the currently accessible strips of the virtual arrays. - */ - JSAMPARRAY buffer[MAX_COMPONENTS]; - -#ifdef FULL_MAIN_BUFFER_SUPPORTED - /* If using full-image storage, this array holds pointers to virtual-array - * control blocks for each component. Unused if not full-image storage. - */ - jvirt_sarray_ptr whole_image[MAX_COMPONENTS]; -#endif -} my_main_controller; - -typedef my_main_controller * my_main_ptr; - - -/* Forward declarations */ -METHODDEF(void) process_data_simple_main - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); -#ifdef FULL_MAIN_BUFFER_SUPPORTED -METHODDEF(void) process_data_buffer_main - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)); -#endif - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - /* Do nothing in raw-data mode. */ - if (cinfo->raw_data_in) - return; - - main->cur_iMCU_row = 0; /* initialize counters */ - main->rowgroup_ctr = 0; - main->suspended = FALSE; - main->pass_mode = pass_mode; /* save mode for use by process_data */ - - switch (pass_mode) { - case JBUF_PASS_THRU: -#ifdef FULL_MAIN_BUFFER_SUPPORTED - if (main->whole_image[0] != NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - main->pub.process_data = process_data_simple_main; - break; -#ifdef FULL_MAIN_BUFFER_SUPPORTED - case JBUF_SAVE_SOURCE: - case JBUF_CRANK_DEST: - case JBUF_SAVE_AND_PASS: - if (main->whole_image[0] == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - main->pub.process_data = process_data_buffer_main; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data. - * This routine handles the simple pass-through mode, - * where we have only a strip buffer. - */ - -METHODDEF(void) -process_data_simple_main (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { - /* Read input data if we haven't filled the main buffer yet */ - if (main->rowgroup_ctr < (JDIMENSION) cinfo->min_DCT_v_scaled_size) - (*cinfo->prep->pre_process_data) (cinfo, - input_buf, in_row_ctr, in_rows_avail, - main->buffer, &main->rowgroup_ctr, - (JDIMENSION) cinfo->min_DCT_v_scaled_size); - - /* If we don't have a full iMCU row buffered, return to application for - * more data. Note that preprocessor will always pad to fill the iMCU row - * at the bottom of the image. - */ - if (main->rowgroup_ctr != (JDIMENSION) cinfo->min_DCT_v_scaled_size) - return; - - /* Send the completed row to the compressor */ - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { - /* If compressor did not consume the whole row, then we must need to - * suspend processing and return to the application. In this situation - * we pretend we didn't yet consume the last input row; otherwise, if - * it happened to be the last row of the image, the application would - * think we were done. - */ - if (! main->suspended) { - (*in_row_ctr)--; - main->suspended = TRUE; - } - return; - } - /* We did finish the row. Undo our little suspension hack if a previous - * call suspended; then mark the main buffer empty. - */ - if (main->suspended) { - (*in_row_ctr)++; - main->suspended = FALSE; - } - main->rowgroup_ctr = 0; - main->cur_iMCU_row++; - } -} - - -#ifdef FULL_MAIN_BUFFER_SUPPORTED - -/* - * Process some data. - * This routine handles all of the modes that use a full-size buffer. - */ - -METHODDEF(void) -process_data_buffer_main (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci; - jpeg_component_info *compptr; - boolean writing = (main->pass_mode != JBUF_CRANK_DEST); - - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) { - /* Realign the virtual buffers if at the start of an iMCU row. */ - if (main->rowgroup_ctr == 0) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->buffer[ci] = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, main->whole_image[ci], - main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE), - (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing); - } - /* In a read pass, pretend we just read some source data. */ - if (! writing) { - *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE; - main->rowgroup_ctr = DCTSIZE; - } - } - - /* If a write pass, read input data until the current iMCU row is full. */ - /* Note: preprocessor will pad if necessary to fill the last iMCU row. */ - if (writing) { - (*cinfo->prep->pre_process_data) (cinfo, - input_buf, in_row_ctr, in_rows_avail, - main->buffer, &main->rowgroup_ctr, - (JDIMENSION) DCTSIZE); - /* Return to application if we need more data to fill the iMCU row. */ - if (main->rowgroup_ctr < DCTSIZE) - return; - } - - /* Emit data, unless this is a sink-only pass. */ - if (main->pass_mode != JBUF_SAVE_SOURCE) { - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) { - /* If compressor did not consume the whole row, then we must need to - * suspend processing and return to the application. In this situation - * we pretend we didn't yet consume the last input row; otherwise, if - * it happened to be the last row of the image, the application would - * think we were done. - */ - if (! main->suspended) { - (*in_row_ctr)--; - main->suspended = TRUE; - } - return; - } - /* We did finish the row. Undo our little suspension hack if a previous - * call suspended; then mark the main buffer empty. - */ - if (main->suspended) { - (*in_row_ctr)++; - main->suspended = FALSE; - } - } - - /* If get here, we are done with this iMCU row. Mark buffer empty. */ - main->rowgroup_ctr = 0; - main->cur_iMCU_row++; - } -} - -#endif /* FULL_MAIN_BUFFER_SUPPORTED */ - - -/* - * Initialize main buffer controller. - */ - -GLOBAL(void) -jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_main_ptr main; - int ci; - jpeg_component_info *compptr; - - main = (my_main_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_main_controller)); - cinfo->main = (struct jpeg_c_main_controller *) main; - main->pub.start_pass = start_pass_main; - - /* We don't need to create a buffer in raw-data mode. */ - if (cinfo->raw_data_in) - return; - - /* Create the buffer. It holds downsampled data, so each component - * may be of a different size. - */ - if (need_full_buffer) { -#ifdef FULL_MAIN_BUFFER_SUPPORTED - /* Allocate a full-image virtual array for each component */ - /* Note we pad the bottom to a multiple of the iMCU height */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->whole_image[ci] = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor) * DCTSIZE, - (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); - } -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif - } else { -#ifdef FULL_MAIN_BUFFER_SUPPORTED - main->whole_image[0] = NULL; /* flag for no virtual arrays */ -#endif - /* Allocate a strip buffer for each component */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - main->buffer[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) (compptr->v_samp_factor * compptr->DCT_v_scaled_size)); - } - } -} diff --git a/jpeg/jcmarker.c b/jpeg/jcmarker.c deleted file mode 100755 index 606c19a..0000000 --- a/jpeg/jcmarker.c +++ /dev/null @@ -1,682 +0,0 @@ -/* - * jcmarker.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write JPEG datastream markers. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -typedef enum { /* JPEG marker codes */ - M_SOF0 = 0xc0, - M_SOF1 = 0xc1, - M_SOF2 = 0xc2, - M_SOF3 = 0xc3, - - M_SOF5 = 0xc5, - M_SOF6 = 0xc6, - M_SOF7 = 0xc7, - - M_JPG = 0xc8, - M_SOF9 = 0xc9, - M_SOF10 = 0xca, - M_SOF11 = 0xcb, - - M_SOF13 = 0xcd, - M_SOF14 = 0xce, - M_SOF15 = 0xcf, - - M_DHT = 0xc4, - - M_DAC = 0xcc, - - M_RST0 = 0xd0, - M_RST1 = 0xd1, - M_RST2 = 0xd2, - M_RST3 = 0xd3, - M_RST4 = 0xd4, - M_RST5 = 0xd5, - M_RST6 = 0xd6, - M_RST7 = 0xd7, - - M_SOI = 0xd8, - M_EOI = 0xd9, - M_SOS = 0xda, - M_DQT = 0xdb, - M_DNL = 0xdc, - M_DRI = 0xdd, - M_DHP = 0xde, - M_EXP = 0xdf, - - M_APP0 = 0xe0, - M_APP1 = 0xe1, - M_APP2 = 0xe2, - M_APP3 = 0xe3, - M_APP4 = 0xe4, - M_APP5 = 0xe5, - M_APP6 = 0xe6, - M_APP7 = 0xe7, - M_APP8 = 0xe8, - M_APP9 = 0xe9, - M_APP10 = 0xea, - M_APP11 = 0xeb, - M_APP12 = 0xec, - M_APP13 = 0xed, - M_APP14 = 0xee, - M_APP15 = 0xef, - - M_JPG0 = 0xf0, - M_JPG13 = 0xfd, - M_COM = 0xfe, - - M_TEM = 0x01, - - M_ERROR = 0x100 -} JPEG_MARKER; - - -/* Private state */ - -typedef struct { - struct jpeg_marker_writer pub; /* public fields */ - - unsigned int last_restart_interval; /* last DRI value emitted; 0 after SOI */ -} my_marker_writer; - -typedef my_marker_writer * my_marker_ptr; - - -/* - * Basic output routines. - * - * Note that we do not support suspension while writing a marker. - * Therefore, an application using suspension must ensure that there is - * enough buffer space for the initial markers (typ. 600-700 bytes) before - * calling jpeg_start_compress, and enough space to write the trailing EOI - * (a few bytes) before calling jpeg_finish_compress. Multipass compression - * modes are not supported at all with suspension, so those two are the only - * points where markers will be written. - */ - -LOCAL(void) -emit_byte (j_compress_ptr cinfo, int val) -/* Emit a byte */ -{ - struct jpeg_destination_mgr * dest = cinfo->dest; - - *(dest->next_output_byte)++ = (JOCTET) val; - if (--dest->free_in_buffer == 0) { - if (! (*dest->empty_output_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - } -} - - -LOCAL(void) -emit_marker (j_compress_ptr cinfo, JPEG_MARKER mark) -/* Emit a marker code */ -{ - emit_byte(cinfo, 0xFF); - emit_byte(cinfo, (int) mark); -} - - -LOCAL(void) -emit_2bytes (j_compress_ptr cinfo, int value) -/* Emit a 2-byte integer; these are always MSB first in JPEG files */ -{ - emit_byte(cinfo, (value >> 8) & 0xFF); - emit_byte(cinfo, value & 0xFF); -} - - -/* - * Routines to write specific marker types. - */ - -LOCAL(int) -emit_dqt (j_compress_ptr cinfo, int index) -/* Emit a DQT marker */ -/* Returns the precision used (0 = 8bits, 1 = 16bits) for baseline checking */ -{ - JQUANT_TBL * qtbl = cinfo->quant_tbl_ptrs[index]; - int prec; - int i; - - if (qtbl == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, index); - - prec = 0; - for (i = 0; i <= cinfo->lim_Se; i++) { - if (qtbl->quantval[cinfo->natural_order[i]] > 255) - prec = 1; - } - - if (! qtbl->sent_table) { - emit_marker(cinfo, M_DQT); - - emit_2bytes(cinfo, - prec ? cinfo->lim_Se * 2 + 2 + 1 + 2 : cinfo->lim_Se + 1 + 1 + 2); - - emit_byte(cinfo, index + (prec<<4)); - - for (i = 0; i <= cinfo->lim_Se; i++) { - /* The table entries must be emitted in zigzag order. */ - unsigned int qval = qtbl->quantval[cinfo->natural_order[i]]; - if (prec) - emit_byte(cinfo, (int) (qval >> 8)); - emit_byte(cinfo, (int) (qval & 0xFF)); - } - - qtbl->sent_table = TRUE; - } - - return prec; -} - - -LOCAL(void) -emit_dht (j_compress_ptr cinfo, int index, boolean is_ac) -/* Emit a DHT marker */ -{ - JHUFF_TBL * htbl; - int length, i; - - if (is_ac) { - htbl = cinfo->ac_huff_tbl_ptrs[index]; - index += 0x10; /* output index has AC bit set */ - } else { - htbl = cinfo->dc_huff_tbl_ptrs[index]; - } - - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, index); - - if (! htbl->sent_table) { - emit_marker(cinfo, M_DHT); - - length = 0; - for (i = 1; i <= 16; i++) - length += htbl->bits[i]; - - emit_2bytes(cinfo, length + 2 + 1 + 16); - emit_byte(cinfo, index); - - for (i = 1; i <= 16; i++) - emit_byte(cinfo, htbl->bits[i]); - - for (i = 0; i < length; i++) - emit_byte(cinfo, htbl->huffval[i]); - - htbl->sent_table = TRUE; - } -} - - -LOCAL(void) -emit_dac (j_compress_ptr cinfo) -/* Emit a DAC marker */ -/* Since the useful info is so small, we want to emit all the tables in */ -/* one DAC marker. Therefore this routine does its own scan of the table. */ -{ -#ifdef C_ARITH_CODING_SUPPORTED - char dc_in_use[NUM_ARITH_TBLS]; - char ac_in_use[NUM_ARITH_TBLS]; - int length, i; - jpeg_component_info *compptr; - - for (i = 0; i < NUM_ARITH_TBLS; i++) - dc_in_use[i] = ac_in_use[i] = 0; - - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) - dc_in_use[compptr->dc_tbl_no] = 1; - /* AC needs no table when not present */ - if (cinfo->Se) - ac_in_use[compptr->ac_tbl_no] = 1; - } - - length = 0; - for (i = 0; i < NUM_ARITH_TBLS; i++) - length += dc_in_use[i] + ac_in_use[i]; - - if (length) { - emit_marker(cinfo, M_DAC); - - emit_2bytes(cinfo, length*2 + 2); - - for (i = 0; i < NUM_ARITH_TBLS; i++) { - if (dc_in_use[i]) { - emit_byte(cinfo, i); - emit_byte(cinfo, cinfo->arith_dc_L[i] + (cinfo->arith_dc_U[i]<<4)); - } - if (ac_in_use[i]) { - emit_byte(cinfo, i + 0x10); - emit_byte(cinfo, cinfo->arith_ac_K[i]); - } - } - } -#endif /* C_ARITH_CODING_SUPPORTED */ -} - - -LOCAL(void) -emit_dri (j_compress_ptr cinfo) -/* Emit a DRI marker */ -{ - emit_marker(cinfo, M_DRI); - - emit_2bytes(cinfo, 4); /* fixed length */ - - emit_2bytes(cinfo, (int) cinfo->restart_interval); -} - - -LOCAL(void) -emit_sof (j_compress_ptr cinfo, JPEG_MARKER code) -/* Emit a SOF marker */ -{ - int ci; - jpeg_component_info *compptr; - - emit_marker(cinfo, code); - - emit_2bytes(cinfo, 3 * cinfo->num_components + 2 + 5 + 1); /* length */ - - /* Make sure image isn't bigger than SOF field can handle */ - if ((long) cinfo->jpeg_height > 65535L || - (long) cinfo->jpeg_width > 65535L) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) 65535); - - emit_byte(cinfo, cinfo->data_precision); - emit_2bytes(cinfo, (int) cinfo->jpeg_height); - emit_2bytes(cinfo, (int) cinfo->jpeg_width); - - emit_byte(cinfo, cinfo->num_components); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - emit_byte(cinfo, compptr->component_id); - emit_byte(cinfo, (compptr->h_samp_factor << 4) + compptr->v_samp_factor); - emit_byte(cinfo, compptr->quant_tbl_no); - } -} - - -LOCAL(void) -emit_sos (j_compress_ptr cinfo) -/* Emit a SOS marker */ -{ - int i, td, ta; - jpeg_component_info *compptr; - - emit_marker(cinfo, M_SOS); - - emit_2bytes(cinfo, 2 * cinfo->comps_in_scan + 2 + 1 + 3); /* length */ - - emit_byte(cinfo, cinfo->comps_in_scan); - - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - emit_byte(cinfo, compptr->component_id); - - /* We emit 0 for unused field(s); this is recommended by the P&M text - * but does not seem to be specified in the standard. - */ - - /* DC needs no table for refinement scan */ - td = cinfo->Ss == 0 && cinfo->Ah == 0 ? compptr->dc_tbl_no : 0; - /* AC needs no table when not present */ - ta = cinfo->Se ? compptr->ac_tbl_no : 0; - - emit_byte(cinfo, (td << 4) + ta); - } - - emit_byte(cinfo, cinfo->Ss); - emit_byte(cinfo, cinfo->Se); - emit_byte(cinfo, (cinfo->Ah << 4) + cinfo->Al); -} - - -LOCAL(void) -emit_pseudo_sos (j_compress_ptr cinfo) -/* Emit a pseudo SOS marker */ -{ - emit_marker(cinfo, M_SOS); - - emit_2bytes(cinfo, 2 + 1 + 3); /* length */ - - emit_byte(cinfo, 0); /* Ns */ - - emit_byte(cinfo, 0); /* Ss */ - emit_byte(cinfo, cinfo->block_size * cinfo->block_size - 1); /* Se */ - emit_byte(cinfo, 0); /* Ah/Al */ -} - - -LOCAL(void) -emit_jfif_app0 (j_compress_ptr cinfo) -/* Emit a JFIF-compliant APP0 marker */ -{ - /* - * Length of APP0 block (2 bytes) - * Block ID (4 bytes - ASCII "JFIF") - * Zero byte (1 byte to terminate the ID string) - * Version Major, Minor (2 bytes - major first) - * Units (1 byte - 0x00 = none, 0x01 = inch, 0x02 = cm) - * Xdpu (2 bytes - dots per unit horizontal) - * Ydpu (2 bytes - dots per unit vertical) - * Thumbnail X size (1 byte) - * Thumbnail Y size (1 byte) - */ - - emit_marker(cinfo, M_APP0); - - emit_2bytes(cinfo, 2 + 4 + 1 + 2 + 1 + 2 + 2 + 1 + 1); /* length */ - - emit_byte(cinfo, 0x4A); /* Identifier: ASCII "JFIF" */ - emit_byte(cinfo, 0x46); - emit_byte(cinfo, 0x49); - emit_byte(cinfo, 0x46); - emit_byte(cinfo, 0); - emit_byte(cinfo, cinfo->JFIF_major_version); /* Version fields */ - emit_byte(cinfo, cinfo->JFIF_minor_version); - emit_byte(cinfo, cinfo->density_unit); /* Pixel size information */ - emit_2bytes(cinfo, (int) cinfo->X_density); - emit_2bytes(cinfo, (int) cinfo->Y_density); - emit_byte(cinfo, 0); /* No thumbnail image */ - emit_byte(cinfo, 0); -} - - -LOCAL(void) -emit_adobe_app14 (j_compress_ptr cinfo) -/* Emit an Adobe APP14 marker */ -{ - /* - * Length of APP14 block (2 bytes) - * Block ID (5 bytes - ASCII "Adobe") - * Version Number (2 bytes - currently 100) - * Flags0 (2 bytes - currently 0) - * Flags1 (2 bytes - currently 0) - * Color transform (1 byte) - * - * Although Adobe TN 5116 mentions Version = 101, all the Adobe files - * now in circulation seem to use Version = 100, so that's what we write. - * - * We write the color transform byte as 1 if the JPEG color space is - * YCbCr, 2 if it's YCCK, 0 otherwise. Adobe's definition has to do with - * whether the encoder performed a transformation, which is pretty useless. - */ - - emit_marker(cinfo, M_APP14); - - emit_2bytes(cinfo, 2 + 5 + 2 + 2 + 2 + 1); /* length */ - - emit_byte(cinfo, 0x41); /* Identifier: ASCII "Adobe" */ - emit_byte(cinfo, 0x64); - emit_byte(cinfo, 0x6F); - emit_byte(cinfo, 0x62); - emit_byte(cinfo, 0x65); - emit_2bytes(cinfo, 100); /* Version */ - emit_2bytes(cinfo, 0); /* Flags0 */ - emit_2bytes(cinfo, 0); /* Flags1 */ - switch (cinfo->jpeg_color_space) { - case JCS_YCbCr: - emit_byte(cinfo, 1); /* Color transform = 1 */ - break; - case JCS_YCCK: - emit_byte(cinfo, 2); /* Color transform = 2 */ - break; - default: - emit_byte(cinfo, 0); /* Color transform = 0 */ - break; - } -} - - -/* - * These routines allow writing an arbitrary marker with parameters. - * The only intended use is to emit COM or APPn markers after calling - * write_file_header and before calling write_frame_header. - * Other uses are not guaranteed to produce desirable results. - * Counting the parameter bytes properly is the caller's responsibility. - */ - -METHODDEF(void) -write_marker_header (j_compress_ptr cinfo, int marker, unsigned int datalen) -/* Emit an arbitrary marker header */ -{ - if (datalen > (unsigned int) 65533) /* safety check */ - ERREXIT(cinfo, JERR_BAD_LENGTH); - - emit_marker(cinfo, (JPEG_MARKER) marker); - - emit_2bytes(cinfo, (int) (datalen + 2)); /* total length */ -} - -METHODDEF(void) -write_marker_byte (j_compress_ptr cinfo, int val) -/* Emit one byte of marker parameters following write_marker_header */ -{ - emit_byte(cinfo, val); -} - - -/* - * Write datastream header. - * This consists of an SOI and optional APPn markers. - * We recommend use of the JFIF marker, but not the Adobe marker, - * when using YCbCr or grayscale data. The JFIF marker should NOT - * be used for any other JPEG colorspace. The Adobe marker is helpful - * to distinguish RGB, CMYK, and YCCK colorspaces. - * Note that an application can write additional header markers after - * jpeg_start_compress returns. - */ - -METHODDEF(void) -write_file_header (j_compress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - emit_marker(cinfo, M_SOI); /* first the SOI */ - - /* SOI is defined to reset restart interval to 0 */ - marker->last_restart_interval = 0; - - if (cinfo->write_JFIF_header) /* next an optional JFIF APP0 */ - emit_jfif_app0(cinfo); - if (cinfo->write_Adobe_marker) /* next an optional Adobe APP14 */ - emit_adobe_app14(cinfo); -} - - -/* - * Write frame header. - * This consists of DQT and SOFn markers, and a conditional pseudo SOS marker. - * Note that we do not emit the SOF until we have emitted the DQT(s). - * This avoids compatibility problems with incorrect implementations that - * try to error-check the quant table numbers as soon as they see the SOF. - */ - -METHODDEF(void) -write_frame_header (j_compress_ptr cinfo) -{ - int ci, prec; - boolean is_baseline; - jpeg_component_info *compptr; - - /* Emit DQT for each quantization table. - * Note that emit_dqt() suppresses any duplicate tables. - */ - prec = 0; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - prec += emit_dqt(cinfo, compptr->quant_tbl_no); - } - /* now prec is nonzero iff there are any 16-bit quant tables. */ - - /* Check for a non-baseline specification. - * Note we assume that Huffman table numbers won't be changed later. - */ - if (cinfo->arith_code || cinfo->progressive_mode || - cinfo->data_precision != 8 || cinfo->block_size != DCTSIZE) { - is_baseline = FALSE; - } else { - is_baseline = TRUE; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->dc_tbl_no > 1 || compptr->ac_tbl_no > 1) - is_baseline = FALSE; - } - if (prec && is_baseline) { - is_baseline = FALSE; - /* If it's baseline except for quantizer size, warn the user */ - TRACEMS(cinfo, 0, JTRC_16BIT_TABLES); - } - } - - /* Emit the proper SOF marker */ - if (cinfo->arith_code) { - if (cinfo->progressive_mode) - emit_sof(cinfo, M_SOF10); /* SOF code for progressive arithmetic */ - else - emit_sof(cinfo, M_SOF9); /* SOF code for sequential arithmetic */ - } else { - if (cinfo->progressive_mode) - emit_sof(cinfo, M_SOF2); /* SOF code for progressive Huffman */ - else if (is_baseline) - emit_sof(cinfo, M_SOF0); /* SOF code for baseline implementation */ - else - emit_sof(cinfo, M_SOF1); /* SOF code for non-baseline Huffman file */ - } - - /* Check to emit pseudo SOS marker */ - if (cinfo->progressive_mode && cinfo->block_size != DCTSIZE) - emit_pseudo_sos(cinfo); -} - - -/* - * Write scan header. - * This consists of DHT or DAC markers, optional DRI, and SOS. - * Compressed data will be written following the SOS. - */ - -METHODDEF(void) -write_scan_header (j_compress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - int i; - jpeg_component_info *compptr; - - if (cinfo->arith_code) { - /* Emit arith conditioning info. We may have some duplication - * if the file has multiple scans, but it's so small it's hardly - * worth worrying about. - */ - emit_dac(cinfo); - } else { - /* Emit Huffman tables. - * Note that emit_dht() suppresses any duplicate tables. - */ - for (i = 0; i < cinfo->comps_in_scan; i++) { - compptr = cinfo->cur_comp_info[i]; - /* DC needs no table for refinement scan */ - if (cinfo->Ss == 0 && cinfo->Ah == 0) - emit_dht(cinfo, compptr->dc_tbl_no, FALSE); - /* AC needs no table when not present */ - if (cinfo->Se) - emit_dht(cinfo, compptr->ac_tbl_no, TRUE); - } - } - - /* Emit DRI if required --- note that DRI value could change for each scan. - * We avoid wasting space with unnecessary DRIs, however. - */ - if (cinfo->restart_interval != marker->last_restart_interval) { - emit_dri(cinfo); - marker->last_restart_interval = cinfo->restart_interval; - } - - emit_sos(cinfo); -} - - -/* - * Write datastream trailer. - */ - -METHODDEF(void) -write_file_trailer (j_compress_ptr cinfo) -{ - emit_marker(cinfo, M_EOI); -} - - -/* - * Write an abbreviated table-specification datastream. - * This consists of SOI, DQT and DHT tables, and EOI. - * Any table that is defined and not marked sent_table = TRUE will be - * emitted. Note that all tables will be marked sent_table = TRUE at exit. - */ - -METHODDEF(void) -write_tables_only (j_compress_ptr cinfo) -{ - int i; - - emit_marker(cinfo, M_SOI); - - for (i = 0; i < NUM_QUANT_TBLS; i++) { - if (cinfo->quant_tbl_ptrs[i] != NULL) - (void) emit_dqt(cinfo, i); - } - - if (! cinfo->arith_code) { - for (i = 0; i < NUM_HUFF_TBLS; i++) { - if (cinfo->dc_huff_tbl_ptrs[i] != NULL) - emit_dht(cinfo, i, FALSE); - if (cinfo->ac_huff_tbl_ptrs[i] != NULL) - emit_dht(cinfo, i, TRUE); - } - } - - emit_marker(cinfo, M_EOI); -} - - -/* - * Initialize the marker writer module. - */ - -GLOBAL(void) -jinit_marker_writer (j_compress_ptr cinfo) -{ - my_marker_ptr marker; - - /* Create the subobject */ - marker = (my_marker_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_marker_writer)); - cinfo->marker = (struct jpeg_marker_writer *) marker; - /* Initialize method pointers */ - marker->pub.write_file_header = write_file_header; - marker->pub.write_frame_header = write_frame_header; - marker->pub.write_scan_header = write_scan_header; - marker->pub.write_file_trailer = write_file_trailer; - marker->pub.write_tables_only = write_tables_only; - marker->pub.write_marker_header = write_marker_header; - marker->pub.write_marker_byte = write_marker_byte; - /* Initialize private state */ - marker->last_restart_interval = 0; -} diff --git a/jpeg/jcmaster.c b/jpeg/jcmaster.c deleted file mode 100755 index caf80a5..0000000 --- a/jpeg/jcmaster.c +++ /dev/null @@ -1,858 +0,0 @@ -/* - * jcmaster.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2003-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains master control logic for the JPEG compressor. - * These routines are concerned with parameter validation, initial setup, - * and inter-pass control (determining the number of passes and the work - * to be done in each pass). - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef enum { - main_pass, /* input data, also do first output step */ - huff_opt_pass, /* Huffman code optimization pass */ - output_pass /* data output pass */ -} c_pass_type; - -typedef struct { - struct jpeg_comp_master pub; /* public fields */ - - c_pass_type pass_type; /* the type of the current pass */ - - int pass_number; /* # of passes completed */ - int total_passes; /* total # of passes needed */ - - int scan_number; /* current index in scan_info[] */ -} my_comp_master; - -typedef my_comp_master * my_master_ptr; - - -/* - * Support routines that do various essential calculations. - */ - -/* - * Compute JPEG image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - */ - -GLOBAL(void) -jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo) -/* Do computations that are needed before master selection phase */ -{ -#ifdef DCT_SCALING_SUPPORTED - - /* Sanity check on input image dimensions to prevent overflow in - * following calculation. - * We do check jpeg_width and jpeg_height in initial_setup below, - * but image_width and image_height can come from arbitrary data, - * and we need some space for multiplication by block_size. - */ - if (((long) cinfo->image_width >> 24) || ((long) cinfo->image_height >> 24)) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* Compute actual JPEG image dimensions and DCT scaling choices. */ - if (cinfo->scale_num >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/1 scaling */ - cinfo->jpeg_width = cinfo->image_width * cinfo->block_size; - cinfo->jpeg_height = cinfo->image_height * cinfo->block_size; - cinfo->min_DCT_h_scaled_size = 1; - cinfo->min_DCT_v_scaled_size = 1; - } else if (cinfo->scale_num * 2 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/2 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 2L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 2L); - cinfo->min_DCT_h_scaled_size = 2; - cinfo->min_DCT_v_scaled_size = 2; - } else if (cinfo->scale_num * 3 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/3 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 3L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 3L); - cinfo->min_DCT_h_scaled_size = 3; - cinfo->min_DCT_v_scaled_size = 3; - } else if (cinfo->scale_num * 4 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/4 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 4L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 4L); - cinfo->min_DCT_h_scaled_size = 4; - cinfo->min_DCT_v_scaled_size = 4; - } else if (cinfo->scale_num * 5 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/5 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 5L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 5L); - cinfo->min_DCT_h_scaled_size = 5; - cinfo->min_DCT_v_scaled_size = 5; - } else if (cinfo->scale_num * 6 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/6 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 6L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 6L); - cinfo->min_DCT_h_scaled_size = 6; - cinfo->min_DCT_v_scaled_size = 6; - } else if (cinfo->scale_num * 7 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/7 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 7L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 7L); - cinfo->min_DCT_h_scaled_size = 7; - cinfo->min_DCT_v_scaled_size = 7; - } else if (cinfo->scale_num * 8 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/8 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 8L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 8L); - cinfo->min_DCT_h_scaled_size = 8; - cinfo->min_DCT_v_scaled_size = 8; - } else if (cinfo->scale_num * 9 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/9 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 9L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 9L); - cinfo->min_DCT_h_scaled_size = 9; - cinfo->min_DCT_v_scaled_size = 9; - } else if (cinfo->scale_num * 10 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/10 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 10L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 10L); - cinfo->min_DCT_h_scaled_size = 10; - cinfo->min_DCT_v_scaled_size = 10; - } else if (cinfo->scale_num * 11 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/11 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 11L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 11L); - cinfo->min_DCT_h_scaled_size = 11; - cinfo->min_DCT_v_scaled_size = 11; - } else if (cinfo->scale_num * 12 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/12 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 12L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 12L); - cinfo->min_DCT_h_scaled_size = 12; - cinfo->min_DCT_v_scaled_size = 12; - } else if (cinfo->scale_num * 13 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/13 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 13L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 13L); - cinfo->min_DCT_h_scaled_size = 13; - cinfo->min_DCT_v_scaled_size = 13; - } else if (cinfo->scale_num * 14 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/14 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 14L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 14L); - cinfo->min_DCT_h_scaled_size = 14; - cinfo->min_DCT_v_scaled_size = 14; - } else if (cinfo->scale_num * 15 >= cinfo->scale_denom * cinfo->block_size) { - /* Provide block_size/15 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 15L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 15L); - cinfo->min_DCT_h_scaled_size = 15; - cinfo->min_DCT_v_scaled_size = 15; - } else { - /* Provide block_size/16 scaling */ - cinfo->jpeg_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * cinfo->block_size, 16L); - cinfo->jpeg_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * cinfo->block_size, 16L); - cinfo->min_DCT_h_scaled_size = 16; - cinfo->min_DCT_v_scaled_size = 16; - } - -#else /* !DCT_SCALING_SUPPORTED */ - - /* Hardwire it to "no scaling" */ - cinfo->jpeg_width = cinfo->image_width; - cinfo->jpeg_height = cinfo->image_height; - cinfo->min_DCT_h_scaled_size = DCTSIZE; - cinfo->min_DCT_v_scaled_size = DCTSIZE; - -#endif /* DCT_SCALING_SUPPORTED */ -} - - -LOCAL(void) -jpeg_calc_trans_dimensions (j_compress_ptr cinfo) -{ - if (cinfo->min_DCT_h_scaled_size != cinfo->min_DCT_v_scaled_size) - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - cinfo->min_DCT_h_scaled_size, cinfo->min_DCT_v_scaled_size); - - cinfo->block_size = cinfo->min_DCT_h_scaled_size; -} - - -LOCAL(void) -initial_setup (j_compress_ptr cinfo, boolean transcode_only) -/* Do computations that are needed before master selection phase */ -{ - int ci, ssize; - jpeg_component_info *compptr; - long samplesperrow; - JDIMENSION jd_samplesperrow; - - if (transcode_only) - jpeg_calc_trans_dimensions(cinfo); - else - jpeg_calc_jpeg_dimensions(cinfo); - - /* Sanity check on block_size */ - if (cinfo->block_size < 1 || cinfo->block_size > 16) - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, cinfo->block_size, cinfo->block_size); - - /* Derive natural_order from block_size */ - switch (cinfo->block_size) { - case 2: cinfo->natural_order = jpeg_natural_order2; break; - case 3: cinfo->natural_order = jpeg_natural_order3; break; - case 4: cinfo->natural_order = jpeg_natural_order4; break; - case 5: cinfo->natural_order = jpeg_natural_order5; break; - case 6: cinfo->natural_order = jpeg_natural_order6; break; - case 7: cinfo->natural_order = jpeg_natural_order7; break; - default: cinfo->natural_order = jpeg_natural_order; break; - } - - /* Derive lim_Se from block_size */ - cinfo->lim_Se = cinfo->block_size < DCTSIZE ? - cinfo->block_size * cinfo->block_size - 1 : DCTSIZE2-1; - - /* Sanity check on image dimensions */ - if (cinfo->jpeg_height <= 0 || cinfo->jpeg_width <= 0 || - cinfo->num_components <= 0 || cinfo->input_components <= 0) - ERREXIT(cinfo, JERR_EMPTY_IMAGE); - - /* Make sure image isn't bigger than I can handle */ - if ((long) cinfo->jpeg_height > (long) JPEG_MAX_DIMENSION || - (long) cinfo->jpeg_width > (long) JPEG_MAX_DIMENSION) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* Width of an input scanline must be representable as JDIMENSION. */ - samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components; - jd_samplesperrow = (JDIMENSION) samplesperrow; - if ((long) jd_samplesperrow != samplesperrow) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - /* For now, precision must match compiled-in value... */ - if (cinfo->data_precision != BITS_IN_JSAMPLE) - ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); - - /* Check that number of components won't exceed internal array sizes */ - if (cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - - /* Compute maximum sampling factors; check factor validity */ - cinfo->max_h_samp_factor = 1; - cinfo->max_v_samp_factor = 1; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || - compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) - ERREXIT(cinfo, JERR_BAD_SAMPLING); - cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, - compptr->h_samp_factor); - cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, - compptr->v_samp_factor); - } - - /* Compute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Fill in the correct component_index value; don't rely on application */ - compptr->component_index = ci; - /* In selecting the actual DCT scaling for each component, we try to - * scale down the chroma components via DCT scaling rather than downsampling. - * This saves time if the downsampler gets to use 1:1 scaling. - * Note this code adapts subsampling ratios which are powers of 2. - */ - ssize = 1; -#ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_h_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } -#endif - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; - ssize = 1; -#ifdef DCT_SCALING_SUPPORTED - while (cinfo->min_DCT_v_scaled_size * ssize <= - (cinfo->do_fancy_downsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } -#endif - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; - - /* We don't support DCT ratios larger than 2. */ - if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) - compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; - else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) - compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; - - /* Size in DCT blocks */ - compptr->width_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width * (long) compptr->h_samp_factor, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->height_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height * (long) compptr->v_samp_factor, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* Size in samples */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width * - (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height * - (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* Mark component needed (this flag isn't actually used for compression) */ - compptr->component_needed = TRUE; - } - - /* Compute number of fully interleaved MCU rows (number of times that - * main controller will call coefficient controller). - */ - cinfo->total_iMCU_rows = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); -} - - -#ifdef C_MULTISCAN_FILES_SUPPORTED - -LOCAL(void) -validate_script (j_compress_ptr cinfo) -/* Verify that the scan script in cinfo->scan_info[] is valid; also - * determine whether it uses progressive JPEG, and set cinfo->progressive_mode. - */ -{ - const jpeg_scan_info * scanptr; - int scanno, ncomps, ci, coefi, thisi; - int Ss, Se, Ah, Al; - boolean component_sent[MAX_COMPONENTS]; -#ifdef C_PROGRESSIVE_SUPPORTED - int * last_bitpos_ptr; - int last_bitpos[MAX_COMPONENTS][DCTSIZE2]; - /* -1 until that coefficient has been seen; then last Al for it */ -#endif - - if (cinfo->num_scans <= 0) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0); - - /* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1; - * for progressive JPEG, no scan can have this. - */ - scanptr = cinfo->scan_info; - if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2-1) { -#ifdef C_PROGRESSIVE_SUPPORTED - cinfo->progressive_mode = TRUE; - last_bitpos_ptr = & last_bitpos[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (coefi = 0; coefi < DCTSIZE2; coefi++) - *last_bitpos_ptr++ = -1; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - cinfo->progressive_mode = FALSE; - for (ci = 0; ci < cinfo->num_components; ci++) - component_sent[ci] = FALSE; - } - - for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) { - /* Validate component indexes */ - ncomps = scanptr->comps_in_scan; - if (ncomps <= 0 || ncomps > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, ncomps, MAX_COMPS_IN_SCAN); - for (ci = 0; ci < ncomps; ci++) { - thisi = scanptr->component_index[ci]; - if (thisi < 0 || thisi >= cinfo->num_components) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - /* Components must appear in SOF order within each scan */ - if (ci > 0 && thisi <= scanptr->component_index[ci-1]) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - } - /* Validate progression parameters */ - Ss = scanptr->Ss; - Se = scanptr->Se; - Ah = scanptr->Ah; - Al = scanptr->Al; - if (cinfo->progressive_mode) { -#ifdef C_PROGRESSIVE_SUPPORTED - /* The JPEG spec simply gives the ranges 0..13 for Ah and Al, but that - * seems wrong: the upper bound ought to depend on data precision. - * Perhaps they really meant 0..N+1 for N-bit precision. - * Here we allow 0..10 for 8-bit data; Al larger than 10 results in - * out-of-range reconstructed DC values during the first DC scan, - * which might cause problems for some decoders. - */ -#if BITS_IN_JSAMPLE == 8 -#define MAX_AH_AL 10 -#else -#define MAX_AH_AL 13 -#endif - if (Ss < 0 || Ss >= DCTSIZE2 || Se < Ss || Se >= DCTSIZE2 || - Ah < 0 || Ah > MAX_AH_AL || Al < 0 || Al > MAX_AH_AL) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - if (Ss == 0) { - if (Se != 0) /* DC and AC together not OK */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } else { - if (ncomps != 1) /* AC scans must be for only one component */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } - for (ci = 0; ci < ncomps; ci++) { - last_bitpos_ptr = & last_bitpos[scanptr->component_index[ci]][0]; - if (Ss != 0 && last_bitpos_ptr[0] < 0) /* AC without prior DC scan */ - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - for (coefi = Ss; coefi <= Se; coefi++) { - if (last_bitpos_ptr[coefi] < 0) { - /* first scan of this coefficient */ - if (Ah != 0) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } else { - /* not first scan */ - if (Ah != last_bitpos_ptr[coefi] || Al != Ah-1) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - } - last_bitpos_ptr[coefi] = Al; - } - } -#endif - } else { - /* For sequential JPEG, all progression parameters must be these: */ - if (Ss != 0 || Se != DCTSIZE2-1 || Ah != 0 || Al != 0) - ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno); - /* Make sure components are not sent twice */ - for (ci = 0; ci < ncomps; ci++) { - thisi = scanptr->component_index[ci]; - if (component_sent[thisi]) - ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno); - component_sent[thisi] = TRUE; - } - } - } - - /* Now verify that everything got sent. */ - if (cinfo->progressive_mode) { -#ifdef C_PROGRESSIVE_SUPPORTED - /* For progressive mode, we only check that at least some DC data - * got sent for each component; the spec does not require that all bits - * of all coefficients be transmitted. Would it be wiser to enforce - * transmission of all coefficient bits?? - */ - for (ci = 0; ci < cinfo->num_components; ci++) { - if (last_bitpos[ci][0] < 0) - ERREXIT(cinfo, JERR_MISSING_DATA); - } -#endif - } else { - for (ci = 0; ci < cinfo->num_components; ci++) { - if (! component_sent[ci]) - ERREXIT(cinfo, JERR_MISSING_DATA); - } - } -} - - -LOCAL(void) -reduce_script (j_compress_ptr cinfo) -/* Adapt scan script for use with reduced block size; - * assume that script has been validated before. - */ -{ - jpeg_scan_info * scanptr; - int idxout, idxin; - - /* Circumvent const declaration for this function */ - scanptr = (jpeg_scan_info *) cinfo->scan_info; - idxout = 0; - - for (idxin = 0; idxin < cinfo->num_scans; idxin++) { - /* After skipping, idxout becomes smaller than idxin */ - if (idxin != idxout) - /* Copy rest of data; - * note we stay in given chunk of allocated memory. - */ - scanptr[idxout] = scanptr[idxin]; - if (scanptr[idxout].Ss > cinfo->lim_Se) - /* Entire scan out of range - skip this entry */ - continue; - if (scanptr[idxout].Se > cinfo->lim_Se) - /* Limit scan to end of block */ - scanptr[idxout].Se = cinfo->lim_Se; - idxout++; - } - - cinfo->num_scans = idxout; -} - -#endif /* C_MULTISCAN_FILES_SUPPORTED */ - - -LOCAL(void) -select_scan_parameters (j_compress_ptr cinfo) -/* Set up the scan parameters for the current scan */ -{ - int ci; - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (cinfo->scan_info != NULL) { - /* Prepare for current scan --- the script is already validated */ - my_master_ptr master = (my_master_ptr) cinfo->master; - const jpeg_scan_info * scanptr = cinfo->scan_info + master->scan_number; - - cinfo->comps_in_scan = scanptr->comps_in_scan; - for (ci = 0; ci < scanptr->comps_in_scan; ci++) { - cinfo->cur_comp_info[ci] = - &cinfo->comp_info[scanptr->component_index[ci]]; - } - if (cinfo->progressive_mode) { - cinfo->Ss = scanptr->Ss; - cinfo->Se = scanptr->Se; - cinfo->Ah = scanptr->Ah; - cinfo->Al = scanptr->Al; - return; - } - } - else -#endif - { - /* Prepare for single sequential-JPEG scan containing all components */ - if (cinfo->num_components > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPS_IN_SCAN); - cinfo->comps_in_scan = cinfo->num_components; - for (ci = 0; ci < cinfo->num_components; ci++) { - cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci]; - } - } - cinfo->Ss = 0; - cinfo->Se = cinfo->block_size * cinfo->block_size - 1; - cinfo->Ah = 0; - cinfo->Al = 0; -} - - -LOCAL(void) -per_scan_setup (j_compress_ptr cinfo) -/* Do computations that are needed before processing a JPEG scan */ -/* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */ -{ - int ci, mcublks, tmp; - jpeg_component_info *compptr; - - if (cinfo->comps_in_scan == 1) { - - /* Noninterleaved (single-component) scan */ - compptr = cinfo->cur_comp_info[0]; - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = compptr->width_in_blocks; - cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - - /* For noninterleaved scan, always one block per MCU */ - compptr->MCU_width = 1; - compptr->MCU_height = 1; - compptr->MCU_blocks = 1; - compptr->MCU_sample_width = compptr->DCT_h_scaled_size; - compptr->last_col_width = 1; - /* For noninterleaved scans, it is convenient to define last_row_height - * as the number of block rows present in the last iMCU row. - */ - tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (tmp == 0) tmp = compptr->v_samp_factor; - compptr->last_row_height = tmp; - - /* Prepare array describing MCU composition */ - cinfo->blocks_in_MCU = 1; - cinfo->MCU_membership[0] = 0; - - } else { - - /* Interleaved (multi-component) scan */ - if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, - MAX_COMPS_IN_SCAN); - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_width, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - cinfo->MCU_rows_in_scan = (JDIMENSION) - jdiv_round_up((long) cinfo->jpeg_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - cinfo->blocks_in_MCU = 0; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Sampling factors give # of blocks of component in each MCU */ - compptr->MCU_width = compptr->h_samp_factor; - compptr->MCU_height = compptr->v_samp_factor; - compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; - compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; - /* Figure number of non-dummy blocks in last MCU column & row */ - tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); - if (tmp == 0) tmp = compptr->MCU_width; - compptr->last_col_width = tmp; - tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); - if (tmp == 0) tmp = compptr->MCU_height; - compptr->last_row_height = tmp; - /* Prepare array describing MCU composition */ - mcublks = compptr->MCU_blocks; - if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU) - ERREXIT(cinfo, JERR_BAD_MCU_SIZE); - while (mcublks-- > 0) { - cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; - } - } - - } - - /* Convert restart specified in rows to actual MCU count. */ - /* Note that count must fit in 16 bits, so we provide limiting. */ - if (cinfo->restart_in_rows > 0) { - long nominal = (long) cinfo->restart_in_rows * (long) cinfo->MCUs_per_row; - cinfo->restart_interval = (unsigned int) MIN(nominal, 65535L); - } -} - - -/* - * Per-pass setup. - * This is called at the beginning of each pass. We determine which modules - * will be active during this pass and give them appropriate start_pass calls. - * We also set is_last_pass to indicate whether any more passes will be - * required. - */ - -METHODDEF(void) -prepare_for_pass (j_compress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - switch (master->pass_type) { - case main_pass: - /* Initial pass: will collect input data, and do either Huffman - * optimization or data output for the first scan. - */ - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - if (! cinfo->raw_data_in) { - (*cinfo->cconvert->start_pass) (cinfo); - (*cinfo->downsample->start_pass) (cinfo); - (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU); - } - (*cinfo->fdct->start_pass) (cinfo); - (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding); - (*cinfo->coef->start_pass) (cinfo, - (master->total_passes > 1 ? - JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); - (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); - if (cinfo->optimize_coding) { - /* No immediate data output; postpone writing frame/scan headers */ - master->pub.call_pass_startup = FALSE; - } else { - /* Will write frame/scan headers at first jpeg_write_scanlines call */ - master->pub.call_pass_startup = TRUE; - } - break; -#ifdef ENTROPY_OPT_SUPPORTED - case huff_opt_pass: - /* Do Huffman optimization for a scan after the first one. */ - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - if (cinfo->Ss != 0 || cinfo->Ah == 0) { - (*cinfo->entropy->start_pass) (cinfo, TRUE); - (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); - master->pub.call_pass_startup = FALSE; - break; - } - /* Special case: Huffman DC refinement scans need no Huffman table - * and therefore we can skip the optimization pass for them. - */ - master->pass_type = output_pass; - master->pass_number++; - /*FALLTHROUGH*/ -#endif - case output_pass: - /* Do a data-output pass. */ - /* We need not repeat per-scan setup if prior optimization pass did it. */ - if (! cinfo->optimize_coding) { - select_scan_parameters(cinfo); - per_scan_setup(cinfo); - } - (*cinfo->entropy->start_pass) (cinfo, FALSE); - (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST); - /* We emit frame/scan headers now */ - if (master->scan_number == 0) - (*cinfo->marker->write_frame_header) (cinfo); - (*cinfo->marker->write_scan_header) (cinfo); - master->pub.call_pass_startup = FALSE; - break; - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - } - - master->pub.is_last_pass = (master->pass_number == master->total_passes-1); - - /* Set up progress monitor's pass info if present */ - if (cinfo->progress != NULL) { - cinfo->progress->completed_passes = master->pass_number; - cinfo->progress->total_passes = master->total_passes; - } -} - - -/* - * Special start-of-pass hook. - * This is called by jpeg_write_scanlines if call_pass_startup is TRUE. - * In single-pass processing, we need this hook because we don't want to - * write frame/scan headers during jpeg_start_compress; we want to let the - * application write COM markers etc. between jpeg_start_compress and the - * jpeg_write_scanlines loop. - * In multi-pass processing, this routine is not used. - */ - -METHODDEF(void) -pass_startup (j_compress_ptr cinfo) -{ - cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */ - - (*cinfo->marker->write_frame_header) (cinfo); - (*cinfo->marker->write_scan_header) (cinfo); -} - - -/* - * Finish up at end of pass. - */ - -METHODDEF(void) -finish_pass_master (j_compress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - /* The entropy coder always needs an end-of-pass call, - * either to analyze statistics or to flush its output buffer. - */ - (*cinfo->entropy->finish_pass) (cinfo); - - /* Update state for next pass */ - switch (master->pass_type) { - case main_pass: - /* next pass is either output of scan 0 (after optimization) - * or output of scan 1 (if no optimization). - */ - master->pass_type = output_pass; - if (! cinfo->optimize_coding) - master->scan_number++; - break; - case huff_opt_pass: - /* next pass is always output of current scan */ - master->pass_type = output_pass; - break; - case output_pass: - /* next pass is either optimization or output of next scan */ - if (cinfo->optimize_coding) - master->pass_type = huff_opt_pass; - master->scan_number++; - break; - } - - master->pass_number++; -} - - -/* - * Initialize master compression control. - */ - -GLOBAL(void) -jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only) -{ - my_master_ptr master; - - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_comp_master)); - cinfo->master = (struct jpeg_comp_master *) master; - master->pub.prepare_for_pass = prepare_for_pass; - master->pub.pass_startup = pass_startup; - master->pub.finish_pass = finish_pass_master; - master->pub.is_last_pass = FALSE; - - /* Validate parameters, determine derived values */ - initial_setup(cinfo, transcode_only); - - if (cinfo->scan_info != NULL) { -#ifdef C_MULTISCAN_FILES_SUPPORTED - validate_script(cinfo); - if (cinfo->block_size < DCTSIZE) - reduce_script(cinfo); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - cinfo->progressive_mode = FALSE; - cinfo->num_scans = 1; - } - - if ((cinfo->progressive_mode || cinfo->block_size < DCTSIZE) && - !cinfo->arith_code) /* TEMPORARY HACK ??? */ - /* assume default tables no good for progressive or downscale mode */ - cinfo->optimize_coding = TRUE; - - /* Initialize my private state */ - if (transcode_only) { - /* no main pass in transcoding */ - if (cinfo->optimize_coding) - master->pass_type = huff_opt_pass; - else - master->pass_type = output_pass; - } else { - /* for normal compression, first pass is always this type: */ - master->pass_type = main_pass; - } - master->scan_number = 0; - master->pass_number = 0; - if (cinfo->optimize_coding) - master->total_passes = cinfo->num_scans * 2; - else - master->total_passes = cinfo->num_scans; -} diff --git a/jpeg/jcomapi.c b/jpeg/jcomapi.c deleted file mode 100755 index 9b1fa75..0000000 --- a/jpeg/jcomapi.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * jcomapi.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface routines that are used for both - * compression and decompression. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Abort processing of a JPEG compression or decompression operation, - * but don't destroy the object itself. - * - * For this, we merely clean up all the nonpermanent memory pools. - * Note that temp files (virtual arrays) are not allowed to belong to - * the permanent pool, so we will be able to close all temp files here. - * Closing a data source or destination, if necessary, is the application's - * responsibility. - */ - -GLOBAL(void) -jpeg_abort (j_common_ptr cinfo) -{ - int pool; - - /* Do nothing if called on a not-initialized or destroyed JPEG object. */ - if (cinfo->mem == NULL) - return; - - /* Releasing pools in reverse order might help avoid fragmentation - * with some (brain-damaged) malloc libraries. - */ - for (pool = JPOOL_NUMPOOLS-1; pool > JPOOL_PERMANENT; pool--) { - (*cinfo->mem->free_pool) (cinfo, pool); - } - - /* Reset overall state for possible reuse of object */ - if (cinfo->is_decompressor) { - cinfo->global_state = DSTATE_START; - /* Try to keep application from accessing now-deleted marker list. - * A bit kludgy to do it here, but this is the most central place. - */ - ((j_decompress_ptr) cinfo)->marker_list = NULL; - } else { - cinfo->global_state = CSTATE_START; - } -} - - -/* - * Destruction of a JPEG object. - * - * Everything gets deallocated except the master jpeg_compress_struct itself - * and the error manager struct. Both of these are supplied by the application - * and must be freed, if necessary, by the application. (Often they are on - * the stack and so don't need to be freed anyway.) - * Closing a data source or destination, if necessary, is the application's - * responsibility. - */ - -GLOBAL(void) -jpeg_destroy (j_common_ptr cinfo) -{ - /* We need only tell the memory manager to release everything. */ - /* NB: mem pointer is NULL if memory mgr failed to initialize. */ - if (cinfo->mem != NULL) - (*cinfo->mem->self_destruct) (cinfo); - cinfo->mem = NULL; /* be safe if jpeg_destroy is called twice */ - cinfo->global_state = 0; /* mark it destroyed */ -} - - -/* - * Convenience routines for allocating quantization and Huffman tables. - * (Would jutils.c be a more reasonable place to put these?) - */ - -GLOBAL(JQUANT_TBL *) -jpeg_alloc_quant_table (j_common_ptr cinfo) -{ - JQUANT_TBL *tbl; - - tbl = (JQUANT_TBL *) - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JQUANT_TBL)); - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - return tbl; -} - - -GLOBAL(JHUFF_TBL *) -jpeg_alloc_huff_table (j_common_ptr cinfo) -{ - JHUFF_TBL *tbl; - - tbl = (JHUFF_TBL *) - (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JHUFF_TBL)); - tbl->sent_table = FALSE; /* make sure this is false in any new table */ - return tbl; -} diff --git a/jpeg/jconfig.bcc b/jpeg/jconfig.bcc deleted file mode 100755 index e4da3d7..0000000 --- a/jpeg/jconfig.bcc +++ /dev/null @@ -1,48 +0,0 @@ -/* jconfig.bcc --- jconfig.h for Borland C (Turbo C) on MS-DOS or OS/2. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#ifdef __MSDOS__ -#define NEED_FAR_POINTERS /* for small or medium memory model */ -#endif -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN /* this assumes you have -w-stu in CFLAGS */ - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#ifdef __MSDOS__ -#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ -#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ -#define USE_FMEM /* Borland has _fmemcpy() and _fmemset() */ -#endif - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define USE_SETMODE /* Borland has setmode() */ -#ifdef __MSDOS__ -#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ -#endif -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.cfg b/jpeg/jconfig.cfg deleted file mode 100755 index 5269eb3..0000000 --- a/jpeg/jconfig.cfg +++ /dev/null @@ -1,53 +0,0 @@ -/* jconfig.cfg --- source file edited by configure script */ -/* see jconfig.txt for explanations */ - -#undef HAVE_PROTOTYPES -#undef HAVE_UNSIGNED_CHAR -#undef HAVE_UNSIGNED_SHORT -#undef void -#undef const -#undef CHAR_IS_UNSIGNED -#undef HAVE_STDDEF_H -#undef HAVE_STDLIB_H -#undef HAVE_LOCALE_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -/* Define this if you get warnings about undefined structures. */ -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, on Windows systems. */ -#ifdef _WIN32 -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED -#undef INLINE -/* These are for configuring the JPEG memory manager. */ -#undef DEFAULT_MAX_MEM -#undef NO_MKTEMP - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#undef BMP_SUPPORTED /* BMP image file format */ -#undef GIF_SUPPORTED /* GIF image file format */ -#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#undef TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE - -/* Define this if you want percent-done progress reports from cjpeg/djpeg. */ -#undef PROGRESS_REPORT - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.dj b/jpeg/jconfig.dj deleted file mode 100755 index a0d4092..0000000 --- a/jpeg/jconfig.dj +++ /dev/null @@ -1,38 +0,0 @@ -/* jconfig.dj --- jconfig.h for DJGPP (Delorie's GNU C port) on MS-DOS. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* DJGPP uses flat 32-bit addressing */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Needed to make one-file style work in DJGPP */ -#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.mac b/jpeg/jconfig.mac deleted file mode 100755 index 70ed66c..0000000 --- a/jpeg/jconfig.mac +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.mac --- jconfig.h for CodeWarrior on Apple Macintosh */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define USE_MAC_MEMMGR /* Define this if you use jmemmac.c */ - -#define ALIGN_TYPE long /* Needed for 680x0 Macs */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define USE_CCOMMAND /* Command line reader for Macintosh */ -#define TWO_FILE_COMMANDLINE /* Binary I/O thru stdin/stdout doesn't work */ - -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.manx b/jpeg/jconfig.manx deleted file mode 100755 index cd529d7..0000000 --- a/jpeg/jconfig.manx +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.manx --- jconfig.h for Amiga systems using Manx Aztec C ver 5.x. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ - -#define SHORTxSHORT_32 /* produces better DCT code with Aztec C */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#define signal_catcher _abort /* hack for Aztec C naming requirements */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.mc6 b/jpeg/jconfig.mc6 deleted file mode 100755 index 6b05e81..0000000 --- a/jpeg/jconfig.mc6 +++ /dev/null @@ -1,52 +0,0 @@ -/* jconfig.mc6 --- jconfig.h for Microsoft C on MS-DOS, version 6.00A & up. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#define NEED_FAR_POINTERS /* for small or medium memory model */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define USE_MSDOS_MEMMGR /* Define this if you use jmemdos.c */ - -#define MAX_ALLOC_CHUNK 65520L /* Maximum request to malloc() */ - -#define USE_FMEM /* Microsoft has _fmemcpy() and _fmemset() */ - -#define NEED_FHEAPMIN /* far heap management routines are broken */ - -#define SHORTxLCONST_32 /* enable compiler-specific DCT optimization */ -/* Note: the above define is known to improve the code with Microsoft C 6.00A. - * I do not know whether it is good for later compiler versions. - * Please report any info on this point to jpeg-info@jpegclub.org. - */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define USE_SETMODE /* Microsoft has setmode() */ -#define NEED_SIGNAL_CATCHER /* Define this if you use jmemdos.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.sas b/jpeg/jconfig.sas deleted file mode 100755 index b8a1819..0000000 --- a/jpeg/jconfig.sas +++ /dev/null @@ -1,43 +0,0 @@ -/* jconfig.sas --- jconfig.h for Amiga systems using SAS C 6.0 and up. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define TEMP_DIRECTORY "JPEGTMP:" /* recommended setting for Amiga */ - -#define NO_MKTEMP /* SAS C doesn't have mktemp() */ - -#define SHORTxSHORT_32 /* produces better DCT code with SAS C */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE -#define NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.st b/jpeg/jconfig.st deleted file mode 100755 index 5afa0b6..0000000 --- a/jpeg/jconfig.st +++ /dev/null @@ -1,42 +0,0 @@ -/* jconfig.st --- jconfig.h for Atari ST/STE/TT using Pure C or Turbo C. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#define INCOMPLETE_TYPES_BROKEN /* suppress undefined-structure warnings */ - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#define ALIGN_TYPE long /* apparently double is a weird size? */ - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* optional -- undef if you like Unix style */ -/* Note: if you undef TWO_FILE_COMMANDLINE, you may need to define - * USE_SETMODE. Some Atari compilers require it, some do not. - */ -#define NEED_SIGNAL_CATCHER /* needed if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.txt b/jpeg/jconfig.txt deleted file mode 100755 index b96d312..0000000 --- a/jpeg/jconfig.txt +++ /dev/null @@ -1,164 +0,0 @@ -/* - * jconfig.txt - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file documents the configuration options that are required to - * customize the JPEG software for a particular system. - * - * The actual configuration options for a particular installation are stored - * in jconfig.h. On many machines, jconfig.h can be generated automatically - * or copied from one of the "canned" jconfig files that we supply. But if - * you need to generate a jconfig.h file by hand, this file tells you how. - * - * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING. - * EDIT A COPY NAMED JCONFIG.H. - */ - - -/* - * These symbols indicate the properties of your machine or compiler. - * #define the symbol if yes, #undef it if no. - */ - -/* Does your compiler support function prototypes? - * (If not, you also need to use ansi2knr, see install.txt) - */ -#define HAVE_PROTOTYPES - -/* Does your compiler support the declaration "unsigned char" ? - * How about "unsigned short" ? - */ -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT - -/* Define "void" as "char" if your compiler doesn't know about type void. - * NOTE: be sure to define void such that "void *" represents the most general - * pointer type, e.g., that returned by malloc(). - */ -/* #define void char */ - -/* Define "const" as empty if your compiler doesn't know the "const" keyword. - */ -/* #define const */ - -/* Define this if an ordinary "char" type is unsigned. - * If you're not sure, leaving it undefined will work at some cost in speed. - * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal. - */ -#undef CHAR_IS_UNSIGNED - -/* Define this if your system has an ANSI-conforming file. - */ -#define HAVE_STDDEF_H - -/* Define this if your system has an ANSI-conforming file. - */ -#define HAVE_STDLIB_H - -/* Define this if your system does not have an ANSI/SysV , - * but does have a BSD-style . - */ -#undef NEED_BSD_STRINGS - -/* Define this if your system does not provide typedef size_t in any of the - * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in - * instead. - */ -#undef NEED_SYS_TYPES_H - -/* For 80x86 machines, you need to define NEED_FAR_POINTERS, - * unless you are using a large-data memory model or 80386 flat-memory mode. - * On less brain-damaged CPUs this symbol must not be defined. - * (Defining this symbol causes large data structures to be referenced through - * "far" pointers and to be allocated with a special version of malloc.) - */ -#undef NEED_FAR_POINTERS - -/* Define this if your linker needs global names to be unique in less - * than the first 15 characters. - */ -#undef NEED_SHORT_EXTERNAL_NAMES - -/* Although a real ANSI C compiler can deal perfectly well with pointers to - * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI - * and pseudo-ANSI compilers get confused. To keep one of these bozos happy, - * define INCOMPLETE_TYPES_BROKEN. This is not recommended unless you - * actually get "missing structure definition" warnings or errors while - * compiling the JPEG code. - */ -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, on Windows systems. - */ -#ifdef _WIN32 -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - - -/* - * The following options affect code selection within the JPEG library, - * but they don't need to be visible to applications using the library. - * To minimize application namespace pollution, the symbols won't be - * defined unless JPEG_INTERNALS has been defined. - */ - -#ifdef JPEG_INTERNALS - -/* Define this if your compiler implements ">>" on signed values as a logical - * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift, - * which is the normal and rational definition. - */ -#undef RIGHT_SHIFT_IS_UNSIGNED - - -#endif /* JPEG_INTERNALS */ - - -/* - * The remaining options do not affect the JPEG library proper, - * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c). - * Other applications can ignore these. - */ - -#ifdef JPEG_CJPEG_DJPEG - -/* These defines indicate which image (non-JPEG) file formats are allowed. */ - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -/* Define this if you want to name both input and output files on the command - * line, rather than using stdout and optionally stdin. You MUST do this if - * your system can't cope with binary I/O to stdin/stdout. See comments at - * head of cjpeg.c or djpeg.c. - */ -#undef TWO_FILE_COMMANDLINE - -/* Define this if your system needs explicit cleanup of temporary files. - * This is crucial under MS-DOS, where the temporary "files" may be areas - * of extended memory; on most other systems it's not as important. - */ -#undef NEED_SIGNAL_CATCHER - -/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb"). - * This is necessary on systems that distinguish text files from binary files, - * and is harmless on most systems that don't. If you have one of the rare - * systems that complains about the "b" spec, define this symbol. - */ -#undef DONT_USE_B_MODE - -/* Define this if you want percent-done progress reports from cjpeg/djpeg. - */ -#undef PROGRESS_REPORT - - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.vc b/jpeg/jconfig.vc deleted file mode 100755 index 55d2b00..0000000 --- a/jpeg/jconfig.vc +++ /dev/null @@ -1,45 +0,0 @@ -/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 95 or NT. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* we presume a 32-bit flat memory model */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -/* Define "boolean" as unsigned char, not int, per Windows custom */ -#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ -typedef unsigned char boolean; -#endif -#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ - - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#undef BMP_SUPPORTED /* BMP image file format */ -#undef GIF_SUPPORTED /* GIF image file format */ -#undef PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#undef TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Microsoft has setmode() */ -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.vms b/jpeg/jconfig.vms deleted file mode 100755 index 8337b0b..0000000 --- a/jpeg/jconfig.vms +++ /dev/null @@ -1,37 +0,0 @@ -/* jconfig.vms --- jconfig.h for use on Digital VMS. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#undef CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#define TWO_FILE_COMMANDLINE /* Needed on VMS */ -#undef NEED_SIGNAL_CATCHER -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jconfig.wat b/jpeg/jconfig.wat deleted file mode 100755 index 190cc75..0000000 --- a/jpeg/jconfig.wat +++ /dev/null @@ -1,38 +0,0 @@ -/* jconfig.wat --- jconfig.h for Watcom C/C++ on MS-DOS or OS/2. */ -/* see jconfig.txt for explanations */ - -#define HAVE_PROTOTYPES -#define HAVE_UNSIGNED_CHAR -#define HAVE_UNSIGNED_SHORT -/* #define void char */ -/* #define const */ -#define CHAR_IS_UNSIGNED -#define HAVE_STDDEF_H -#define HAVE_STDLIB_H -#undef NEED_BSD_STRINGS -#undef NEED_SYS_TYPES_H -#undef NEED_FAR_POINTERS /* Watcom uses flat 32-bit addressing */ -#undef NEED_SHORT_EXTERNAL_NAMES -#undef INCOMPLETE_TYPES_BROKEN - -#ifdef JPEG_INTERNALS - -#undef RIGHT_SHIFT_IS_UNSIGNED - -#endif /* JPEG_INTERNALS */ - -#ifdef JPEG_CJPEG_DJPEG - -#define BMP_SUPPORTED /* BMP image file format */ -#define GIF_SUPPORTED /* GIF image file format */ -#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */ -#undef RLE_SUPPORTED /* Utah RLE image file format */ -#define TARGA_SUPPORTED /* Targa image file format */ - -#undef TWO_FILE_COMMANDLINE /* optional */ -#define USE_SETMODE /* Needed to make one-file style work in Watcom */ -#undef NEED_SIGNAL_CATCHER /* Define this if you use jmemname.c */ -#undef DONT_USE_B_MODE -#undef PROGRESS_REPORT /* optional */ - -#endif /* JPEG_CJPEG_DJPEG */ diff --git a/jpeg/jcparam.c b/jpeg/jcparam.c deleted file mode 100755 index c5e85dd..0000000 --- a/jpeg/jcparam.c +++ /dev/null @@ -1,632 +0,0 @@ -/* - * jcparam.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2003-2008 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains optional default-setting code for the JPEG compressor. - * Applications do not have to use this file, but those that don't use it - * must know a lot more about the innards of the JPEG code. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Quantization table setup routines - */ - -GLOBAL(void) -jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, boolean force_baseline) -/* Define a quantization table equal to the basic_table times - * a scale factor (given as a percentage). - * If force_baseline is TRUE, the computed quantization table entries - * are limited to 1..255 for JPEG baseline compatibility. - */ -{ - JQUANT_TBL ** qtblptr; - int i; - long temp; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (which_tbl < 0 || which_tbl >= NUM_QUANT_TBLS) - ERREXIT1(cinfo, JERR_DQT_INDEX, which_tbl); - - qtblptr = & cinfo->quant_tbl_ptrs[which_tbl]; - - if (*qtblptr == NULL) - *qtblptr = jpeg_alloc_quant_table((j_common_ptr) cinfo); - - for (i = 0; i < DCTSIZE2; i++) { - temp = ((long) basic_table[i] * scale_factor + 50L) / 100L; - /* limit the values to the valid range */ - if (temp <= 0L) temp = 1L; - if (temp > 32767L) temp = 32767L; /* max quantizer needed for 12 bits */ - if (force_baseline && temp > 255L) - temp = 255L; /* limit to baseline range if requested */ - (*qtblptr)->quantval[i] = (UINT16) temp; - } - - /* Initialize sent_table FALSE so table will be written to JPEG file. */ - (*qtblptr)->sent_table = FALSE; -} - - -/* These are the sample quantization tables given in JPEG spec section K.1. - * The spec says that the values given produce "good" quality, and - * when divided by 2, "very good" quality. - */ -static const unsigned int std_luminance_quant_tbl[DCTSIZE2] = { - 16, 11, 10, 16, 24, 40, 51, 61, - 12, 12, 14, 19, 26, 58, 60, 55, - 14, 13, 16, 24, 40, 57, 69, 56, - 14, 17, 22, 29, 51, 87, 80, 62, - 18, 22, 37, 56, 68, 109, 103, 77, - 24, 35, 55, 64, 81, 104, 113, 92, - 49, 64, 78, 87, 103, 121, 120, 101, - 72, 92, 95, 98, 112, 100, 103, 99 -}; -static const unsigned int std_chrominance_quant_tbl[DCTSIZE2] = { - 17, 18, 24, 47, 99, 99, 99, 99, - 18, 21, 26, 66, 99, 99, 99, 99, - 24, 26, 56, 99, 99, 99, 99, 99, - 47, 66, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99, - 99, 99, 99, 99, 99, 99, 99, 99 -}; - - -GLOBAL(void) -jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables - * and straight percentage-scaling quality scales. - * This entry point allows different scalings for luminance and chrominance. - */ -{ - /* Set up two quantization tables using the specified scaling */ - jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, - cinfo->q_scale_factor[0], force_baseline); - jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, - cinfo->q_scale_factor[1], force_baseline); -} - - -GLOBAL(void) -jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, - boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables - * and a straight percentage-scaling quality scale. In most cases it's better - * to use jpeg_set_quality (below); this entry point is provided for - * applications that insist on a linear percentage scaling. - */ -{ - /* Set up two quantization tables using the specified scaling */ - jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl, - scale_factor, force_baseline); - jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl, - scale_factor, force_baseline); -} - - -GLOBAL(int) -jpeg_quality_scaling (int quality) -/* Convert a user-specified quality rating to a percentage scaling factor - * for an underlying quantization table, using our recommended scaling curve. - * The input 'quality' factor should be 0 (terrible) to 100 (very good). - */ -{ - /* Safety limit on quality factor. Convert 0 to 1 to avoid zero divide. */ - if (quality <= 0) quality = 1; - if (quality > 100) quality = 100; - - /* The basic table is used as-is (scaling 100) for a quality of 50. - * Qualities 50..100 are converted to scaling percentage 200 - 2*Q; - * note that at Q=100 the scaling is 0, which will cause jpeg_add_quant_table - * to make all the table entries 1 (hence, minimum quantization loss). - * Qualities 1..50 are converted to scaling percentage 5000/Q. - */ - if (quality < 50) - quality = 5000 / quality; - else - quality = 200 - quality*2; - - return quality; -} - - -GLOBAL(void) -jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) -/* Set or change the 'quality' (quantization) setting, using default tables. - * This is the standard quality-adjusting entry point for typical user - * interfaces; only those who want detailed control over quantization tables - * would use the preceding three routines directly. - */ -{ - /* Convert user 0-100 rating to percentage scaling */ - quality = jpeg_quality_scaling(quality); - - /* Set up standard quality tables */ - jpeg_set_linear_quality(cinfo, quality, force_baseline); -} - - -/* - * Huffman table setup routines - */ - -LOCAL(void) -add_huff_table (j_compress_ptr cinfo, - JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val) -/* Define a Huffman table */ -{ - int nsymbols, len; - - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - - /* Copy the number-of-symbols-of-each-code-length counts */ - MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); - - /* Validate the counts. We do this here mainly so we can copy the right - * number of symbols from the val[] array, without risking marching off - * the end of memory. jchuff.c will do a more thorough test later. - */ - nsymbols = 0; - for (len = 1; len <= 16; len++) - nsymbols += bits[len]; - if (nsymbols < 1 || nsymbols > 256) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - - MEMCOPY((*htblptr)->huffval, val, nsymbols * SIZEOF(UINT8)); - - /* Initialize sent_table FALSE so table will be written to JPEG file. */ - (*htblptr)->sent_table = FALSE; -} - - -LOCAL(void) -std_huff_tables (j_compress_ptr cinfo) -/* Set up the standard Huffman tables (cf. JPEG standard section K.3) */ -/* IMPORTANT: these are only valid for 8-bit data precision! */ -{ - static const UINT8 bits_dc_luminance[17] = - { /* 0-base */ 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 }; - static const UINT8 val_dc_luminance[] = - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; - - static const UINT8 bits_dc_chrominance[17] = - { /* 0-base */ 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; - static const UINT8 val_dc_chrominance[] = - { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; - - static const UINT8 bits_ac_luminance[17] = - { /* 0-base */ 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d }; - static const UINT8 val_ac_luminance[] = - { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, - 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, - 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, - 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, - 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, - 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, - 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, - 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, - 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, - 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, - 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, - 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, - 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, - 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, - 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, - 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, - 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, - 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, - 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, - 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa }; - - static const UINT8 bits_ac_chrominance[17] = - { /* 0-base */ 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 }; - static const UINT8 val_ac_chrominance[] = - { 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21, - 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, - 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, - 0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0, - 0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34, - 0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26, - 0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38, - 0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, - 0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, - 0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, - 0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, - 0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - 0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, - 0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, - 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, - 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, - 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, - 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, - 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, - 0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, - 0xf9, 0xfa }; - - add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[0], - bits_dc_luminance, val_dc_luminance); - add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[0], - bits_ac_luminance, val_ac_luminance); - add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[1], - bits_dc_chrominance, val_dc_chrominance); - add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[1], - bits_ac_chrominance, val_ac_chrominance); -} - - -/* - * Default parameter setup for compression. - * - * Applications that don't choose to use this routine must do their - * own setup of all these parameters. Alternately, you can call this - * to establish defaults and then alter parameters selectively. This - * is the recommended approach since, if we add any new parameters, - * your code will still work (they'll be set to reasonable defaults). - */ - -GLOBAL(void) -jpeg_set_defaults (j_compress_ptr cinfo) -{ - int i; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Allocate comp_info array large enough for maximum component count. - * Array is made permanent in case application wants to compress - * multiple images at same param settings. - */ - if (cinfo->comp_info == NULL) - cinfo->comp_info = (jpeg_component_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - MAX_COMPONENTS * SIZEOF(jpeg_component_info)); - - /* Initialize everything not dependent on the color space */ - - cinfo->scale_num = 1; /* 1:1 scaling */ - cinfo->scale_denom = 1; - cinfo->data_precision = BITS_IN_JSAMPLE; - /* Set up two quantization tables using default quality of 75 */ - jpeg_set_quality(cinfo, 75, TRUE); - /* Set up two Huffman tables */ - std_huff_tables(cinfo); - - /* Initialize default arithmetic coding conditioning */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - cinfo->arith_dc_L[i] = 0; - cinfo->arith_dc_U[i] = 1; - cinfo->arith_ac_K[i] = 5; - } - - /* Default is no multiple-scan output */ - cinfo->scan_info = NULL; - cinfo->num_scans = 0; - - /* Expect normal source image, not raw downsampled data */ - cinfo->raw_data_in = FALSE; - - /* Use Huffman coding, not arithmetic coding, by default */ - cinfo->arith_code = FALSE; - - /* By default, don't do extra passes to optimize entropy coding */ - cinfo->optimize_coding = FALSE; - /* The standard Huffman tables are only valid for 8-bit data precision. - * If the precision is higher, force optimization on so that usable - * tables will be computed. This test can be removed if default tables - * are supplied that are valid for the desired precision. - */ - if (cinfo->data_precision > 8) - cinfo->optimize_coding = TRUE; - - /* By default, use the simpler non-cosited sampling alignment */ - cinfo->CCIR601_sampling = FALSE; - - /* By default, apply fancy downsampling */ - cinfo->do_fancy_downsampling = TRUE; - - /* No input smoothing */ - cinfo->smoothing_factor = 0; - - /* DCT algorithm preference */ - cinfo->dct_method = JDCT_DEFAULT; - - /* No restart markers */ - cinfo->restart_interval = 0; - cinfo->restart_in_rows = 0; - - /* Fill in default JFIF marker parameters. Note that whether the marker - * will actually be written is determined by jpeg_set_colorspace. - * - * By default, the library emits JFIF version code 1.01. - * An application that wants to emit JFIF 1.02 extension markers should set - * JFIF_minor_version to 2. We could probably get away with just defaulting - * to 1.02, but there may still be some decoders in use that will complain - * about that; saying 1.01 should minimize compatibility problems. - */ - cinfo->JFIF_major_version = 1; /* Default JFIF version = 1.01 */ - cinfo->JFIF_minor_version = 1; - cinfo->density_unit = 0; /* Pixel size is unknown by default */ - cinfo->X_density = 1; /* Pixel aspect ratio is square by default */ - cinfo->Y_density = 1; - - /* Choose JPEG colorspace based on input space, set defaults accordingly */ - - jpeg_default_colorspace(cinfo); -} - - -/* - * Select an appropriate JPEG colorspace for in_color_space. - */ - -GLOBAL(void) -jpeg_default_colorspace (j_compress_ptr cinfo) -{ - switch (cinfo->in_color_space) { - case JCS_GRAYSCALE: - jpeg_set_colorspace(cinfo, JCS_GRAYSCALE); - break; - case JCS_RGB: - jpeg_set_colorspace(cinfo, JCS_YCbCr); - break; - case JCS_YCbCr: - jpeg_set_colorspace(cinfo, JCS_YCbCr); - break; - case JCS_CMYK: - jpeg_set_colorspace(cinfo, JCS_CMYK); /* By default, no translation */ - break; - case JCS_YCCK: - jpeg_set_colorspace(cinfo, JCS_YCCK); - break; - case JCS_UNKNOWN: - jpeg_set_colorspace(cinfo, JCS_UNKNOWN); - break; - default: - ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE); - } -} - - -/* - * Set the JPEG colorspace, and choose colorspace-dependent default values. - */ - -GLOBAL(void) -jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) -{ - jpeg_component_info * compptr; - int ci; - -#define SET_COMP(index,id,hsamp,vsamp,quant,dctbl,actbl) \ - (compptr = &cinfo->comp_info[index], \ - compptr->component_id = (id), \ - compptr->h_samp_factor = (hsamp), \ - compptr->v_samp_factor = (vsamp), \ - compptr->quant_tbl_no = (quant), \ - compptr->dc_tbl_no = (dctbl), \ - compptr->ac_tbl_no = (actbl) ) - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* For all colorspaces, we use Q and Huff tables 0 for luminance components, - * tables 1 for chrominance components. - */ - - cinfo->jpeg_color_space = colorspace; - - cinfo->write_JFIF_header = FALSE; /* No marker for non-JFIF colorspaces */ - cinfo->write_Adobe_marker = FALSE; /* write no Adobe marker by default */ - - switch (colorspace) { - case JCS_GRAYSCALE: - cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ - cinfo->num_components = 1; - /* JFIF specifies component ID 1 */ - SET_COMP(0, 1, 1,1, 0, 0,0); - break; - case JCS_RGB: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag RGB */ - cinfo->num_components = 3; - SET_COMP(0, 0x52 /* 'R' */, 1,1, 0, 0,0); - SET_COMP(1, 0x47 /* 'G' */, 1,1, 0, 0,0); - SET_COMP(2, 0x42 /* 'B' */, 1,1, 0, 0,0); - break; - case JCS_YCbCr: - cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */ - cinfo->num_components = 3; - /* JFIF specifies component IDs 1,2,3 */ - /* We default to 2x2 subsamples of chrominance */ - SET_COMP(0, 1, 2,2, 0, 0,0); - SET_COMP(1, 2, 1,1, 1, 1,1); - SET_COMP(2, 3, 1,1, 1, 1,1); - break; - case JCS_CMYK: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag CMYK */ - cinfo->num_components = 4; - SET_COMP(0, 0x43 /* 'C' */, 1,1, 0, 0,0); - SET_COMP(1, 0x4D /* 'M' */, 1,1, 0, 0,0); - SET_COMP(2, 0x59 /* 'Y' */, 1,1, 0, 0,0); - SET_COMP(3, 0x4B /* 'K' */, 1,1, 0, 0,0); - break; - case JCS_YCCK: - cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag YCCK */ - cinfo->num_components = 4; - SET_COMP(0, 1, 2,2, 0, 0,0); - SET_COMP(1, 2, 1,1, 1, 1,1); - SET_COMP(2, 3, 1,1, 1, 1,1); - SET_COMP(3, 4, 2,2, 0, 0,0); - break; - case JCS_UNKNOWN: - cinfo->num_components = cinfo->input_components; - if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - for (ci = 0; ci < cinfo->num_components; ci++) { - SET_COMP(ci, ci, 1,1, 0, 0,0); - } - break; - default: - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - } -} - - -#ifdef C_PROGRESSIVE_SUPPORTED - -LOCAL(jpeg_scan_info *) -fill_a_scan (jpeg_scan_info * scanptr, int ci, - int Ss, int Se, int Ah, int Al) -/* Support routine: generate one scan for specified component */ -{ - scanptr->comps_in_scan = 1; - scanptr->component_index[0] = ci; - scanptr->Ss = Ss; - scanptr->Se = Se; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - return scanptr; -} - -LOCAL(jpeg_scan_info *) -fill_scans (jpeg_scan_info * scanptr, int ncomps, - int Ss, int Se, int Ah, int Al) -/* Support routine: generate one scan for each component */ -{ - int ci; - - for (ci = 0; ci < ncomps; ci++) { - scanptr->comps_in_scan = 1; - scanptr->component_index[0] = ci; - scanptr->Ss = Ss; - scanptr->Se = Se; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - } - return scanptr; -} - -LOCAL(jpeg_scan_info *) -fill_dc_scans (jpeg_scan_info * scanptr, int ncomps, int Ah, int Al) -/* Support routine: generate interleaved DC scan if possible, else N scans */ -{ - int ci; - - if (ncomps <= MAX_COMPS_IN_SCAN) { - /* Single interleaved DC scan */ - scanptr->comps_in_scan = ncomps; - for (ci = 0; ci < ncomps; ci++) - scanptr->component_index[ci] = ci; - scanptr->Ss = scanptr->Se = 0; - scanptr->Ah = Ah; - scanptr->Al = Al; - scanptr++; - } else { - /* Noninterleaved DC scan for each component */ - scanptr = fill_scans(scanptr, ncomps, 0, 0, Ah, Al); - } - return scanptr; -} - - -/* - * Create a recommended progressive-JPEG script. - * cinfo->num_components and cinfo->jpeg_color_space must be correct. - */ - -GLOBAL(void) -jpeg_simple_progression (j_compress_ptr cinfo) -{ - int ncomps = cinfo->num_components; - int nscans; - jpeg_scan_info * scanptr; - - /* Safety check to ensure start_compress not called yet. */ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Figure space needed for script. Calculation must match code below! */ - if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { - /* Custom script for YCbCr color images. */ - nscans = 10; - } else { - /* All-purpose script for other color spaces. */ - if (ncomps > MAX_COMPS_IN_SCAN) - nscans = 6 * ncomps; /* 2 DC + 4 AC scans per component */ - else - nscans = 2 + 4 * ncomps; /* 2 DC scans; 4 AC scans per component */ - } - - /* Allocate space for script. - * We need to put it in the permanent pool in case the application performs - * multiple compressions without changing the settings. To avoid a memory - * leak if jpeg_simple_progression is called repeatedly for the same JPEG - * object, we try to re-use previously allocated space, and we allocate - * enough space to handle YCbCr even if initially asked for grayscale. - */ - if (cinfo->script_space == NULL || cinfo->script_space_size < nscans) { - cinfo->script_space_size = MAX(nscans, 10); - cinfo->script_space = (jpeg_scan_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - cinfo->script_space_size * SIZEOF(jpeg_scan_info)); - } - scanptr = cinfo->script_space; - cinfo->scan_info = scanptr; - cinfo->num_scans = nscans; - - if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) { - /* Custom script for YCbCr color images. */ - /* Initial DC scan */ - scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); - /* Initial AC scan: get some luma data out in a hurry */ - scanptr = fill_a_scan(scanptr, 0, 1, 5, 0, 2); - /* Chroma data is too small to be worth expending many scans on */ - scanptr = fill_a_scan(scanptr, 2, 1, 63, 0, 1); - scanptr = fill_a_scan(scanptr, 1, 1, 63, 0, 1); - /* Complete spectral selection for luma AC */ - scanptr = fill_a_scan(scanptr, 0, 6, 63, 0, 2); - /* Refine next bit of luma AC */ - scanptr = fill_a_scan(scanptr, 0, 1, 63, 2, 1); - /* Finish DC successive approximation */ - scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); - /* Finish AC successive approximation */ - scanptr = fill_a_scan(scanptr, 2, 1, 63, 1, 0); - scanptr = fill_a_scan(scanptr, 1, 1, 63, 1, 0); - /* Luma bottom bit comes last since it's usually largest scan */ - scanptr = fill_a_scan(scanptr, 0, 1, 63, 1, 0); - } else { - /* All-purpose script for other color spaces. */ - /* Successive approximation first pass */ - scanptr = fill_dc_scans(scanptr, ncomps, 0, 1); - scanptr = fill_scans(scanptr, ncomps, 1, 5, 0, 2); - scanptr = fill_scans(scanptr, ncomps, 6, 63, 0, 2); - /* Successive approximation second pass */ - scanptr = fill_scans(scanptr, ncomps, 1, 63, 2, 1); - /* Successive approximation final pass */ - scanptr = fill_dc_scans(scanptr, ncomps, 1, 0); - scanptr = fill_scans(scanptr, ncomps, 1, 63, 1, 0); - } -} - -#endif /* C_PROGRESSIVE_SUPPORTED */ diff --git a/jpeg/jcprepct.c b/jpeg/jcprepct.c deleted file mode 100755 index be44cc4..0000000 --- a/jpeg/jcprepct.c +++ /dev/null @@ -1,358 +0,0 @@ -/* - * jcprepct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the compression preprocessing controller. - * This controller manages the color conversion, downsampling, - * and edge expansion steps. - * - * Most of the complexity here is associated with buffering input rows - * as required by the downsampler. See the comments at the head of - * jcsample.c for the downsampler's needs. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* At present, jcsample.c can request context rows only for smoothing. - * In the future, we might also need context rows for CCIR601 sampling - * or other more-complex downsampling procedures. The code to support - * context rows should be compiled only if needed. - */ -#ifdef INPUT_SMOOTHING_SUPPORTED -#define CONTEXT_ROWS_SUPPORTED -#endif - - -/* - * For the simple (no-context-row) case, we just need to buffer one - * row group's worth of pixels for the downsampling step. At the bottom of - * the image, we pad to a full row group by replicating the last pixel row. - * The downsampler's last output row is then replicated if needed to pad - * out to a full iMCU row. - * - * When providing context rows, we must buffer three row groups' worth of - * pixels. Three row groups are physically allocated, but the row pointer - * arrays are made five row groups high, with the extra pointers above and - * below "wrapping around" to point to the last and first real row groups. - * This allows the downsampler to access the proper context rows. - * At the top and bottom of the image, we create dummy context rows by - * copying the first or last real pixel row. This copying could be avoided - * by pointer hacking as is done in jdmainct.c, but it doesn't seem worth the - * trouble on the compression side. - */ - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_prep_controller pub; /* public fields */ - - /* Downsampling input buffer. This buffer holds color-converted data - * until we have enough to do a downsample step. - */ - JSAMPARRAY color_buf[MAX_COMPONENTS]; - - JDIMENSION rows_to_go; /* counts rows remaining in source image */ - int next_buf_row; /* index of next row to store in color_buf */ - -#ifdef CONTEXT_ROWS_SUPPORTED /* only needed for context case */ - int this_row_group; /* starting row index of group to process */ - int next_buf_stop; /* downsample when we reach this index */ -#endif -} my_prep_controller; - -typedef my_prep_controller * my_prep_ptr; - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_prep (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - - if (pass_mode != JBUF_PASS_THRU) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - /* Initialize total-height counter for detecting bottom of image */ - prep->rows_to_go = cinfo->image_height; - /* Mark the conversion buffer empty */ - prep->next_buf_row = 0; -#ifdef CONTEXT_ROWS_SUPPORTED - /* Preset additional state variables for context mode. - * These aren't used in non-context mode, so we needn't test which mode. - */ - prep->this_row_group = 0; - /* Set next_buf_stop to stop after two row groups have been read in. */ - prep->next_buf_stop = 2 * cinfo->max_v_samp_factor; -#endif -} - - -/* - * Expand an image vertically from height input_rows to height output_rows, - * by duplicating the bottom row. - */ - -LOCAL(void) -expand_bottom_edge (JSAMPARRAY image_data, JDIMENSION num_cols, - int input_rows, int output_rows) -{ - register int row; - - for (row = input_rows; row < output_rows; row++) { - jcopy_sample_rows(image_data, input_rows-1, image_data, row, - 1, num_cols); - } -} - - -/* - * Process some data in the simple no-context case. - * - * Preprocessor output data is counted in "row groups". A row group - * is defined to be v_samp_factor sample rows of each component. - * Downsampling will produce this much data from each max_v_samp_factor - * input rows. - */ - -METHODDEF(void) -pre_process_data (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int numrows, ci; - JDIMENSION inrows; - jpeg_component_info * compptr; - - while (*in_row_ctr < in_rows_avail && - *out_row_group_ctr < out_row_groups_avail) { - /* Do color conversion to fill the conversion buffer. */ - inrows = in_rows_avail - *in_row_ctr; - numrows = cinfo->max_v_samp_factor - prep->next_buf_row; - numrows = (int) MIN((JDIMENSION) numrows, inrows); - (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, - prep->color_buf, - (JDIMENSION) prep->next_buf_row, - numrows); - *in_row_ctr += numrows; - prep->next_buf_row += numrows; - prep->rows_to_go -= numrows; - /* If at bottom of image, pad to fill the conversion buffer. */ - if (prep->rows_to_go == 0 && - prep->next_buf_row < cinfo->max_v_samp_factor) { - for (ci = 0; ci < cinfo->num_components; ci++) { - expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, - prep->next_buf_row, cinfo->max_v_samp_factor); - } - prep->next_buf_row = cinfo->max_v_samp_factor; - } - /* If we've filled the conversion buffer, empty it. */ - if (prep->next_buf_row == cinfo->max_v_samp_factor) { - (*cinfo->downsample->downsample) (cinfo, - prep->color_buf, (JDIMENSION) 0, - output_buf, *out_row_group_ctr); - prep->next_buf_row = 0; - (*out_row_group_ctr)++; - } - /* If at bottom of image, pad the output to a full iMCU height. - * Note we assume the caller is providing a one-iMCU-height output buffer! - */ - if (prep->rows_to_go == 0 && - *out_row_group_ctr < out_row_groups_avail) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - numrows = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - expand_bottom_edge(output_buf[ci], - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (int) (*out_row_group_ctr * numrows), - (int) (out_row_groups_avail * numrows)); - } - *out_row_group_ctr = out_row_groups_avail; - break; /* can exit outer loop without test */ - } - } -} - - -#ifdef CONTEXT_ROWS_SUPPORTED - -/* - * Process some data in the context case. - */ - -METHODDEF(void) -pre_process_context (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int numrows, ci; - int buf_height = cinfo->max_v_samp_factor * 3; - JDIMENSION inrows; - - while (*out_row_group_ctr < out_row_groups_avail) { - if (*in_row_ctr < in_rows_avail) { - /* Do color conversion to fill the conversion buffer. */ - inrows = in_rows_avail - *in_row_ctr; - numrows = prep->next_buf_stop - prep->next_buf_row; - numrows = (int) MIN((JDIMENSION) numrows, inrows); - (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr, - prep->color_buf, - (JDIMENSION) prep->next_buf_row, - numrows); - /* Pad at top of image, if first time through */ - if (prep->rows_to_go == cinfo->image_height) { - for (ci = 0; ci < cinfo->num_components; ci++) { - int row; - for (row = 1; row <= cinfo->max_v_samp_factor; row++) { - jcopy_sample_rows(prep->color_buf[ci], 0, - prep->color_buf[ci], -row, - 1, cinfo->image_width); - } - } - } - *in_row_ctr += numrows; - prep->next_buf_row += numrows; - prep->rows_to_go -= numrows; - } else { - /* Return for more data, unless we are at the bottom of the image. */ - if (prep->rows_to_go != 0) - break; - /* When at bottom of image, pad to fill the conversion buffer. */ - if (prep->next_buf_row < prep->next_buf_stop) { - for (ci = 0; ci < cinfo->num_components; ci++) { - expand_bottom_edge(prep->color_buf[ci], cinfo->image_width, - prep->next_buf_row, prep->next_buf_stop); - } - prep->next_buf_row = prep->next_buf_stop; - } - } - /* If we've gotten enough data, downsample a row group. */ - if (prep->next_buf_row == prep->next_buf_stop) { - (*cinfo->downsample->downsample) (cinfo, - prep->color_buf, - (JDIMENSION) prep->this_row_group, - output_buf, *out_row_group_ctr); - (*out_row_group_ctr)++; - /* Advance pointers with wraparound as necessary. */ - prep->this_row_group += cinfo->max_v_samp_factor; - if (prep->this_row_group >= buf_height) - prep->this_row_group = 0; - if (prep->next_buf_row >= buf_height) - prep->next_buf_row = 0; - prep->next_buf_stop = prep->next_buf_row + cinfo->max_v_samp_factor; - } - } -} - - -/* - * Create the wrapped-around downsampling input buffer needed for context mode. - */ - -LOCAL(void) -create_context_buffer (j_compress_ptr cinfo) -{ - my_prep_ptr prep = (my_prep_ptr) cinfo->prep; - int rgroup_height = cinfo->max_v_samp_factor; - int ci, i; - jpeg_component_info * compptr; - JSAMPARRAY true_buffer, fake_buffer; - - /* Grab enough space for fake row pointers for all the components; - * we need five row groups' worth of pointers for each component. - */ - fake_buffer = (JSAMPARRAY) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (cinfo->num_components * 5 * rgroup_height) * - SIZEOF(JSAMPROW)); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Allocate the actual buffer space (3 row groups) for this component. - * We make the buffer wide enough to allow the downsampler to edge-expand - * horizontally within the buffer, if it so chooses. - */ - true_buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (((long) compptr->width_in_blocks * - cinfo->min_DCT_h_scaled_size * - cinfo->max_h_samp_factor) / compptr->h_samp_factor), - (JDIMENSION) (3 * rgroup_height)); - /* Copy true buffer row pointers into the middle of the fake row array */ - MEMCOPY(fake_buffer + rgroup_height, true_buffer, - 3 * rgroup_height * SIZEOF(JSAMPROW)); - /* Fill in the above and below wraparound pointers */ - for (i = 0; i < rgroup_height; i++) { - fake_buffer[i] = true_buffer[2 * rgroup_height + i]; - fake_buffer[4 * rgroup_height + i] = true_buffer[i]; - } - prep->color_buf[ci] = fake_buffer + rgroup_height; - fake_buffer += 5 * rgroup_height; /* point to space for next component */ - } -} - -#endif /* CONTEXT_ROWS_SUPPORTED */ - - -/* - * Initialize preprocessing controller. - */ - -GLOBAL(void) -jinit_c_prep_controller (j_compress_ptr cinfo, boolean need_full_buffer) -{ - my_prep_ptr prep; - int ci; - jpeg_component_info * compptr; - - if (need_full_buffer) /* safety check */ - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - prep = (my_prep_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_prep_controller)); - cinfo->prep = (struct jpeg_c_prep_controller *) prep; - prep->pub.start_pass = start_pass_prep; - - /* Allocate the color conversion buffer. - * We make the buffer wide enough to allow the downsampler to edge-expand - * horizontally within the buffer, if it so chooses. - */ - if (cinfo->downsample->need_context_rows) { - /* Set up to provide context rows */ -#ifdef CONTEXT_ROWS_SUPPORTED - prep->pub.pre_process_data = pre_process_context; - create_context_buffer(cinfo); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - /* No context, just make it tall enough for one row group */ - prep->pub.pre_process_data = pre_process_data; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - prep->color_buf[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (((long) compptr->width_in_blocks * - cinfo->min_DCT_h_scaled_size * - cinfo->max_h_samp_factor) / compptr->h_samp_factor), - (JDIMENSION) cinfo->max_v_samp_factor); - } - } -} diff --git a/jpeg/jcsample.c b/jpeg/jcsample.c deleted file mode 100755 index 4d36f85..0000000 --- a/jpeg/jcsample.c +++ /dev/null @@ -1,545 +0,0 @@ -/* - * jcsample.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains downsampling routines. - * - * Downsampling input data is counted in "row groups". A row group - * is defined to be max_v_samp_factor pixel rows of each component, - * from which the downsampler produces v_samp_factor sample rows. - * A single row group is processed in each call to the downsampler module. - * - * The downsampler is responsible for edge-expansion of its output data - * to fill an integral number of DCT blocks horizontally. The source buffer - * may be modified if it is helpful for this purpose (the source buffer is - * allocated wide enough to correspond to the desired output width). - * The caller (the prep controller) is responsible for vertical padding. - * - * The downsampler may request "context rows" by setting need_context_rows - * during startup. In this case, the input arrays will contain at least - * one row group's worth of pixels above and below the passed-in data; - * the caller will create dummy rows at image top and bottom by replicating - * the first or last real pixel row. - * - * An excellent reference for image resampling is - * Digital Image Warping, George Wolberg, 1990. - * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. - * - * The downsampling algorithm used here is a simple average of the source - * pixels covered by the output pixel. The hi-falutin sampling literature - * refers to this as a "box filter". In general the characteristics of a box - * filter are not very good, but for the specific cases we normally use (1:1 - * and 2:1 ratios) the box is equivalent to a "triangle filter" which is not - * nearly so bad. If you intend to use other sampling ratios, you'd be well - * advised to improve this code. - * - * A simple input-smoothing capability is provided. This is mainly intended - * for cleaning up color-dithered GIF input files (if you find it inadequate, - * we suggest using an external filtering program such as pnmconvol). When - * enabled, each input pixel P is replaced by a weighted sum of itself and its - * eight neighbors. P's weight is 1-8*SF and each neighbor's weight is SF, - * where SF = (smoothing_factor / 1024). - * Currently, smoothing is only supported for 2h2v sampling factors. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Pointer to routine to downsample a single component */ -typedef JMETHOD(void, downsample1_ptr, - (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data)); - -/* Private subobject */ - -typedef struct { - struct jpeg_downsampler pub; /* public fields */ - - /* Downsampling method pointers, one per component */ - downsample1_ptr methods[MAX_COMPONENTS]; - - /* Height of an output row group for each component. */ - int rowgroup_height[MAX_COMPONENTS]; - - /* These arrays save pixel expansion factors so that int_downsample need not - * recompute them each time. They are unused for other downsampling methods. - */ - UINT8 h_expand[MAX_COMPONENTS]; - UINT8 v_expand[MAX_COMPONENTS]; -} my_downsampler; - -typedef my_downsampler * my_downsample_ptr; - - -/* - * Initialize for a downsampling pass. - */ - -METHODDEF(void) -start_pass_downsample (j_compress_ptr cinfo) -{ - /* no work for now */ -} - - -/* - * Expand a component horizontally from width input_cols to width output_cols, - * by duplicating the rightmost samples. - */ - -LOCAL(void) -expand_right_edge (JSAMPARRAY image_data, int num_rows, - JDIMENSION input_cols, JDIMENSION output_cols) -{ - register JSAMPROW ptr; - register JSAMPLE pixval; - register int count; - int row; - int numcols = (int) (output_cols - input_cols); - - if (numcols > 0) { - for (row = 0; row < num_rows; row++) { - ptr = image_data[row] + input_cols; - pixval = ptr[-1]; /* don't need GETJSAMPLE() here */ - for (count = numcols; count > 0; count--) - *ptr++ = pixval; - } - } -} - - -/* - * Do downsampling for a whole row group (all components). - * - * In this version we simply downsample each component independently. - */ - -METHODDEF(void) -sep_downsample (j_compress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_index, - JSAMPIMAGE output_buf, JDIMENSION out_row_group_index) -{ - my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; - int ci; - jpeg_component_info * compptr; - JSAMPARRAY in_ptr, out_ptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - in_ptr = input_buf[ci] + in_row_index; - out_ptr = output_buf[ci] + - (out_row_group_index * downsample->rowgroup_height[ci]); - (*downsample->methods[ci]) (cinfo, compptr, in_ptr, out_ptr); - } -} - - -/* - * Downsample pixel values of a single component. - * One row group is processed per call. - * This version handles arbitrary integral sampling ratios, without smoothing. - * Note that this version is not actually used for customary sampling ratios. - */ - -METHODDEF(void) -int_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample; - int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v; - JDIMENSION outcol, outcol_h; /* outcol_h == outcol*h_expand */ - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - JSAMPROW inptr, outptr; - INT32 outvalue; - - h_expand = downsample->h_expand[compptr->component_index]; - v_expand = downsample->v_expand[compptr->component_index]; - numpix = h_expand * v_expand; - numpix2 = numpix/2; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * h_expand); - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - for (outcol = 0, outcol_h = 0; outcol < output_cols; - outcol++, outcol_h += h_expand) { - outvalue = 0; - for (v = 0; v < v_expand; v++) { - inptr = input_data[inrow+v] + outcol_h; - for (h = 0; h < h_expand; h++) { - outvalue += (INT32) GETJSAMPLE(*inptr++); - } - } - *outptr++ = (JSAMPLE) ((outvalue + numpix2) / numpix); - } - inrow += v_expand; - outrow++; - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the special case of a full-size component, - * without smoothing. - */ - -METHODDEF(void) -fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - /* Copy the data */ - jcopy_sample_rows(input_data, 0, output_data, 0, - cinfo->max_v_samp_factor, cinfo->image_width); - /* Edge-expand */ - expand_right_edge(output_data, cinfo->max_v_samp_factor, cinfo->image_width, - compptr->width_in_blocks * compptr->DCT_h_scaled_size); -} - - -/* - * Downsample pixel values of a single component. - * This version handles the common case of 2:1 horizontal and 1:1 vertical, - * without smoothing. - * - * A note about the "bias" calculations: when rounding fractional values to - * integer, we do not want to always round 0.5 up to the next integer. - * If we did that, we'd introduce a noticeable bias towards larger values. - * Instead, this code is arranged so that 0.5 will be rounded up or down at - * alternate pixel locations (a simple ordered dither pattern). - */ - -METHODDEF(void) -h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow; - JDIMENSION outcol; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr, outptr; - register int bias; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * 2); - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - outptr = output_data[inrow]; - inptr = input_data[inrow]; - bias = 0; /* bias = 0,1,0,1,... for successive samples */ - for (outcol = 0; outcol < output_cols; outcol++) { - *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr) + GETJSAMPLE(inptr[1]) - + bias) >> 1); - bias ^= 1; /* 0=>1, 1=>0 */ - inptr += 2; - } - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the standard case of 2:1 horizontal and 2:1 vertical, - * without smoothing. - */ - -METHODDEF(void) -h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow, outrow; - JDIMENSION outcol; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr0, inptr1, outptr; - register int bias; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data, cinfo->max_v_samp_factor, - cinfo->image_width, output_cols * 2); - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - inptr0 = input_data[inrow]; - inptr1 = input_data[inrow+1]; - bias = 1; /* bias = 1,2,1,2,... for successive samples */ - for (outcol = 0; outcol < output_cols; outcol++) { - *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]) - + bias) >> 2); - bias ^= 3; /* 1=>2, 2=>1 */ - inptr0 += 2; inptr1 += 2; - } - inrow += 2; - outrow++; - } -} - - -#ifdef INPUT_SMOOTHING_SUPPORTED - -/* - * Downsample pixel values of a single component. - * This version handles the standard case of 2:1 horizontal and 2:1 vertical, - * with smoothing. One row of context is required. - */ - -METHODDEF(void) -h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow, outrow; - JDIMENSION colctr; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr; - INT32 membersum, neighsum, memberscale, neighscale; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, - cinfo->image_width, output_cols * 2); - - /* We don't bother to form the individual "smoothed" input pixel values; - * we can directly compute the output which is the average of the four - * smoothed values. Each of the four member pixels contributes a fraction - * (1-8*SF) to its own smoothed image and a fraction SF to each of the three - * other smoothed pixels, therefore a total fraction (1-5*SF)/4 to the final - * output. The four corner-adjacent neighbor pixels contribute a fraction - * SF to just one smoothed pixel, or SF/4 to the final output; while the - * eight edge-adjacent neighbors contribute SF to each of two smoothed - * pixels, or SF/2 overall. In order to use integer arithmetic, these - * factors are scaled by 2^16 = 65536. - * Also recall that SF = smoothing_factor / 1024. - */ - - memberscale = 16384 - cinfo->smoothing_factor * 80; /* scaled (1-5*SF)/4 */ - neighscale = cinfo->smoothing_factor * 16; /* scaled SF/4 */ - - inrow = outrow = 0; - while (inrow < cinfo->max_v_samp_factor) { - outptr = output_data[outrow]; - inptr0 = input_data[inrow]; - inptr1 = input_data[inrow+1]; - above_ptr = input_data[inrow-1]; - below_ptr = input_data[inrow+2]; - - /* Special case for first column: pretend column -1 is same as column 0 */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[2]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[2]); - neighsum += neighsum; - neighsum += GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[2]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[2]); - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; - - for (colctr = output_cols - 2; colctr > 0; colctr--) { - /* sum of pixels directly mapped to this output element */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - /* sum of edge-neighbor pixels */ - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[2]) + - GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[2]); - /* The edge-neighbors count twice as much as corner-neighbors */ - neighsum += neighsum; - /* Add in the corner-neighbors */ - neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[2]) + - GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[2]); - /* form final output scaled up by 2^16 */ - membersum = membersum * memberscale + neighsum * neighscale; - /* round, descale and output it */ - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2; - } - - /* Special case for last column */ - membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]); - neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) + - GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[1]) + - GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[1]); - neighsum += neighsum; - neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[1]) + - GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[1]); - membersum = membersum * memberscale + neighsum * neighscale; - *outptr = (JSAMPLE) ((membersum + 32768) >> 16); - - inrow += 2; - outrow++; - } -} - - -/* - * Downsample pixel values of a single component. - * This version handles the special case of a full-size component, - * with smoothing. One row of context is required. - */ - -METHODDEF(void) -fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, - JSAMPARRAY input_data, JSAMPARRAY output_data) -{ - int inrow; - JDIMENSION colctr; - JDIMENSION output_cols = compptr->width_in_blocks * compptr->DCT_h_scaled_size; - register JSAMPROW inptr, above_ptr, below_ptr, outptr; - INT32 membersum, neighsum, memberscale, neighscale; - int colsum, lastcolsum, nextcolsum; - - /* Expand input data enough to let all the output samples be generated - * by the standard loop. Special-casing padded output would be more - * efficient. - */ - expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2, - cinfo->image_width, output_cols); - - /* Each of the eight neighbor pixels contributes a fraction SF to the - * smoothed pixel, while the main pixel contributes (1-8*SF). In order - * to use integer arithmetic, these factors are multiplied by 2^16 = 65536. - * Also recall that SF = smoothing_factor / 1024. - */ - - memberscale = 65536L - cinfo->smoothing_factor * 512L; /* scaled 1-8*SF */ - neighscale = cinfo->smoothing_factor * 64; /* scaled SF */ - - for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) { - outptr = output_data[inrow]; - inptr = input_data[inrow]; - above_ptr = input_data[inrow-1]; - below_ptr = input_data[inrow+1]; - - /* Special case for first column */ - colsum = GETJSAMPLE(*above_ptr++) + GETJSAMPLE(*below_ptr++) + - GETJSAMPLE(*inptr); - membersum = GETJSAMPLE(*inptr++); - nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + - GETJSAMPLE(*inptr); - neighsum = colsum + (colsum - membersum) + nextcolsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - lastcolsum = colsum; colsum = nextcolsum; - - for (colctr = output_cols - 2; colctr > 0; colctr--) { - membersum = GETJSAMPLE(*inptr++); - above_ptr++; below_ptr++; - nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) + - GETJSAMPLE(*inptr); - neighsum = lastcolsum + (colsum - membersum) + nextcolsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16); - lastcolsum = colsum; colsum = nextcolsum; - } - - /* Special case for last column */ - membersum = GETJSAMPLE(*inptr); - neighsum = lastcolsum + (colsum - membersum) + colsum; - membersum = membersum * memberscale + neighsum * neighscale; - *outptr = (JSAMPLE) ((membersum + 32768) >> 16); - - } -} - -#endif /* INPUT_SMOOTHING_SUPPORTED */ - - -/* - * Module initialization routine for downsampling. - * Note that we must select a routine for each component. - */ - -GLOBAL(void) -jinit_downsampler (j_compress_ptr cinfo) -{ - my_downsample_ptr downsample; - int ci; - jpeg_component_info * compptr; - boolean smoothok = TRUE; - int h_in_group, v_in_group, h_out_group, v_out_group; - - downsample = (my_downsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_downsampler)); - cinfo->downsample = (struct jpeg_downsampler *) downsample; - downsample->pub.start_pass = start_pass_downsample; - downsample->pub.downsample = sep_downsample; - downsample->pub.need_context_rows = FALSE; - - if (cinfo->CCIR601_sampling) - ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); - - /* Verify we can handle the sampling factors, and set up method pointers */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Compute size of an "output group" for DCT scaling. This many samples - * are to be converted from max_h_samp_factor * max_v_samp_factor pixels. - */ - h_out_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / - cinfo->min_DCT_h_scaled_size; - v_out_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - h_in_group = cinfo->max_h_samp_factor; - v_in_group = cinfo->max_v_samp_factor; - downsample->rowgroup_height[ci] = v_out_group; /* save for use later */ - if (h_in_group == h_out_group && v_in_group == v_out_group) { -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor) { - downsample->methods[ci] = fullsize_smooth_downsample; - downsample->pub.need_context_rows = TRUE; - } else -#endif - downsample->methods[ci] = fullsize_downsample; - } else if (h_in_group == h_out_group * 2 && - v_in_group == v_out_group) { - smoothok = FALSE; - downsample->methods[ci] = h2v1_downsample; - } else if (h_in_group == h_out_group * 2 && - v_in_group == v_out_group * 2) { -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor) { - downsample->methods[ci] = h2v2_smooth_downsample; - downsample->pub.need_context_rows = TRUE; - } else -#endif - downsample->methods[ci] = h2v2_downsample; - } else if ((h_in_group % h_out_group) == 0 && - (v_in_group % v_out_group) == 0) { - smoothok = FALSE; - downsample->methods[ci] = int_downsample; - downsample->h_expand[ci] = (UINT8) (h_in_group / h_out_group); - downsample->v_expand[ci] = (UINT8) (v_in_group / v_out_group); - } else - ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); - } - -#ifdef INPUT_SMOOTHING_SUPPORTED - if (cinfo->smoothing_factor && !smoothok) - TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL); -#endif -} diff --git a/jpeg/jctrans.c b/jpeg/jctrans.c deleted file mode 100755 index f7d7b81..0000000 --- a/jpeg/jctrans.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - * jctrans.c - * - * Copyright (C) 1995-1998, Thomas G. Lane. - * Modified 2000-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains library routines for transcoding compression, - * that is, writing raw DCT coefficient arrays to an output JPEG file. - * The routines in jcapimin.c will also be needed by a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(void) transencode_master_selection - JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); -LOCAL(void) transencode_coef_controller - JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)); - - -/* - * Compression initialization for writing raw-coefficient data. - * Before calling this, all parameters and a data destination must be set up. - * Call jpeg_finish_compress() to actually write the data. - * - * The number of passed virtual arrays must match cinfo->num_components. - * Note that the virtual arrays need not be filled or even realized at - * the time write_coefficients is called; indeed, if the virtual arrays - * were requested from this compression object's memory manager, they - * typically will be realized during this routine and filled afterwards. - */ - -GLOBAL(void) -jpeg_write_coefficients (j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays) -{ - if (cinfo->global_state != CSTATE_START) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Mark all tables to be written */ - jpeg_suppress_tables(cinfo, FALSE); - /* (Re)initialize error mgr and destination modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->dest->init_destination) (cinfo); - /* Perform master selection of active modules */ - transencode_master_selection(cinfo, coef_arrays); - /* Wait for jpeg_finish_compress() call */ - cinfo->next_scanline = 0; /* so jpeg_write_marker works */ - cinfo->global_state = CSTATE_WRCOEFS; -} - - -/* - * Initialize the compression object with default parameters, - * then copy from the source object all parameters needed for lossless - * transcoding. Parameters that can be varied without loss (such as - * scan script and Huffman optimization) are left in their default states. - */ - -GLOBAL(void) -jpeg_copy_critical_parameters (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo) -{ - JQUANT_TBL ** qtblptr; - jpeg_component_info *incomp, *outcomp; - JQUANT_TBL *c_quant, *slot_quant; - int tblno, ci, coefi; - - /* Safety check to ensure start_compress not called yet. */ - if (dstinfo->global_state != CSTATE_START) - ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state); - /* Copy fundamental image dimensions */ - dstinfo->image_width = srcinfo->image_width; - dstinfo->image_height = srcinfo->image_height; - dstinfo->input_components = srcinfo->num_components; - dstinfo->in_color_space = srcinfo->jpeg_color_space; - dstinfo->jpeg_width = srcinfo->output_width; - dstinfo->jpeg_height = srcinfo->output_height; - dstinfo->min_DCT_h_scaled_size = srcinfo->min_DCT_h_scaled_size; - dstinfo->min_DCT_v_scaled_size = srcinfo->min_DCT_v_scaled_size; - /* Initialize all parameters to default values */ - jpeg_set_defaults(dstinfo); - /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB. - * Fix it to get the right header markers for the image colorspace. - */ - jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space); - dstinfo->data_precision = srcinfo->data_precision; - dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling; - /* Copy the source's quantization tables. */ - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - if (srcinfo->quant_tbl_ptrs[tblno] != NULL) { - qtblptr = & dstinfo->quant_tbl_ptrs[tblno]; - if (*qtblptr == NULL) - *qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo); - MEMCOPY((*qtblptr)->quantval, - srcinfo->quant_tbl_ptrs[tblno]->quantval, - SIZEOF((*qtblptr)->quantval)); - (*qtblptr)->sent_table = FALSE; - } - } - /* Copy the source's per-component info. - * Note we assume jpeg_set_defaults has allocated the dest comp_info array. - */ - dstinfo->num_components = srcinfo->num_components; - if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS) - ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components, - MAX_COMPONENTS); - for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info; - ci < dstinfo->num_components; ci++, incomp++, outcomp++) { - outcomp->component_id = incomp->component_id; - outcomp->h_samp_factor = incomp->h_samp_factor; - outcomp->v_samp_factor = incomp->v_samp_factor; - outcomp->quant_tbl_no = incomp->quant_tbl_no; - /* Make sure saved quantization table for component matches the qtable - * slot. If not, the input file re-used this qtable slot. - * IJG encoder currently cannot duplicate this. - */ - tblno = outcomp->quant_tbl_no; - if (tblno < 0 || tblno >= NUM_QUANT_TBLS || - srcinfo->quant_tbl_ptrs[tblno] == NULL) - ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno); - slot_quant = srcinfo->quant_tbl_ptrs[tblno]; - c_quant = incomp->quant_table; - if (c_quant != NULL) { - for (coefi = 0; coefi < DCTSIZE2; coefi++) { - if (c_quant->quantval[coefi] != slot_quant->quantval[coefi]) - ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno); - } - } - /* Note: we do not copy the source's Huffman table assignments; - * instead we rely on jpeg_set_colorspace to have made a suitable choice. - */ - } - /* Also copy JFIF version and resolution information, if available. - * Strictly speaking this isn't "critical" info, but it's nearly - * always appropriate to copy it if available. In particular, - * if the application chooses to copy JFIF 1.02 extension markers from - * the source file, we need to copy the version to make sure we don't - * emit a file that has 1.02 extensions but a claimed version of 1.01. - * We will *not*, however, copy version info from mislabeled "2.01" files. - */ - if (srcinfo->saw_JFIF_marker) { - if (srcinfo->JFIF_major_version == 1) { - dstinfo->JFIF_major_version = srcinfo->JFIF_major_version; - dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version; - } - dstinfo->density_unit = srcinfo->density_unit; - dstinfo->X_density = srcinfo->X_density; - dstinfo->Y_density = srcinfo->Y_density; - } -} - - -/* - * Master selection of compression modules for transcoding. - * This substitutes for jcinit.c's initialization of the full compressor. - */ - -LOCAL(void) -transencode_master_selection (j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays) -{ - /* Initialize master control (includes parameter checking/processing) */ - jinit_c_master_control(cinfo, TRUE /* transcode only */); - - /* Entropy encoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_encoder(cinfo); - else { - jinit_huff_encoder(cinfo); - } - - /* We need a special coefficient buffer controller. */ - transencode_coef_controller(cinfo, coef_arrays); - - jinit_marker_writer(cinfo); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Write the datastream header (SOI, JFIF) immediately. - * Frame and scan headers are postponed till later. - * This lets application insert special markers after the SOI. - */ - (*cinfo->marker->write_file_header) (cinfo); -} - - -/* - * The rest of this file is a special implementation of the coefficient - * buffer controller. This is similar to jccoefct.c, but it handles only - * output from presupplied virtual arrays. Furthermore, we generate any - * dummy padding blocks on-the-fly rather than expecting them to be present - * in the arrays. - */ - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_c_coef_controller pub; /* public fields */ - - JDIMENSION iMCU_row_num; /* iMCU row # within image */ - JDIMENSION mcu_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* Virtual block array for each component. */ - jvirt_barray_ptr * whole_image; - - /* Workspace for constructing dummy blocks at right/bottom edges. */ - JBLOCKROW dummy_buffer[C_MAX_BLOCKS_IN_MCU]; -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - - -LOCAL(void) -start_iMCU_row (j_compress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->mcu_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - if (pass_mode != JBUF_CRANK_DEST) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - coef->iMCU_row_num = 0; - start_iMCU_row(cinfo); -} - - -/* - * Process some data. - * We process the equivalent of one fully interleaved MCU row ("iMCU" row) - * per call, ie, v_samp_factor block rows for each component in the scan. - * The data is obtained from the virtual arrays and fed to the entropy coder. - * Returns TRUE if the iMCU row is completed, FALSE if suspended. - * - * NB: input_buf is ignored; it is likely to be a NULL pointer. - */ - -METHODDEF(boolean) -compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, ci, xindex, yindex, yoffset, blockcnt; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - coef->iMCU_row_num * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (coef->iMCU_row_num < last_iMCU_row || - yindex+yoffset < compptr->last_row_height) { - /* Fill in pointers to real blocks in this row */ - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < blockcnt; xindex++) - MCU_buffer[blkn++] = buffer_ptr++; - } else { - /* At bottom of image, need a whole row of dummy blocks */ - xindex = 0; - } - /* Fill in any dummy blocks needed in this row. - * Dummy blocks are filled in the same way as in jccoefct.c: - * all zeroes in the AC entries, DC entries equal to previous - * block's DC value. The init routine has already zeroed the - * AC entries, so we need only set the DC entries correctly. - */ - for (; xindex < compptr->MCU_width; xindex++) { - MCU_buffer[blkn] = coef->dummy_buffer[blkn]; - MCU_buffer[blkn][0][0] = MCU_buffer[blkn-1][0][0]; - blkn++; - } - } - } - /* Try to write the MCU. */ - if (! (*cinfo->entropy->encode_mcu) (cinfo, MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->mcu_ctr = MCU_col_num; - return FALSE; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->mcu_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - coef->iMCU_row_num++; - start_iMCU_row(cinfo); - return TRUE; -} - - -/* - * Initialize coefficient buffer controller. - * - * Each passed coefficient array must be the right size for that - * coefficient: width_in_blocks wide and height_in_blocks high, - * with unitheight at least v_samp_factor. - */ - -LOCAL(void) -transencode_coef_controller (j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays) -{ - my_coef_ptr coef; - JBLOCKROW buffer; - int i; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_c_coef_controller *) coef; - coef->pub.start_pass = start_pass_coef; - coef->pub.compress_data = compress_output; - - /* Save pointer to virtual arrays */ - coef->whole_image = coef_arrays; - - /* Allocate and pre-zero space for dummy DCT blocks. */ - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - FMEMZERO((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) { - coef->dummy_buffer[i] = buffer + i; - } -} diff --git a/jpeg/jdapimin.c b/jpeg/jdapimin.c deleted file mode 100755 index 7f1ce4c..0000000 --- a/jpeg/jdapimin.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * jdapimin.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the decompression half - * of the JPEG library. These are the "minimum" API routines that may be - * needed in either the normal full-decompression case or the - * transcoding-only case. - * - * Most of the routines intended to be called directly by an application - * are in this file or in jdapistd.c. But also see jcomapi.c for routines - * shared by compression and decompression, and jdtrans.c for the transcoding - * case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * Initialization of a JPEG decompression object. - * The error manager must already be set up (in case memory manager fails). - */ - -GLOBAL(void) -jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, size_t structsize) -{ - int i; - - /* Guard against version mismatches between library and caller. */ - cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ - if (version != JPEG_LIB_VERSION) - ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); - if (structsize != SIZEOF(struct jpeg_decompress_struct)) - ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, - (int) SIZEOF(struct jpeg_decompress_struct), (int) structsize); - - /* For debugging purposes, we zero the whole master structure. - * But the application has already set the err pointer, and may have set - * client_data, so we have to save and restore those fields. - * Note: if application hasn't set client_data, tools like Purify may - * complain here. - */ - { - struct jpeg_error_mgr * err = cinfo->err; - void * client_data = cinfo->client_data; /* ignore Purify complaint here */ - MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct)); - cinfo->err = err; - cinfo->client_data = client_data; - } - cinfo->is_decompressor = TRUE; - - /* Initialize a memory manager instance for this object */ - jinit_memory_mgr((j_common_ptr) cinfo); - - /* Zero out pointers to permanent structures. */ - cinfo->progress = NULL; - cinfo->src = NULL; - - for (i = 0; i < NUM_QUANT_TBLS; i++) - cinfo->quant_tbl_ptrs[i] = NULL; - - for (i = 0; i < NUM_HUFF_TBLS; i++) { - cinfo->dc_huff_tbl_ptrs[i] = NULL; - cinfo->ac_huff_tbl_ptrs[i] = NULL; - } - - /* Initialize marker processor so application can override methods - * for COM, APPn markers before calling jpeg_read_header. - */ - cinfo->marker_list = NULL; - jinit_marker_reader(cinfo); - - /* And initialize the overall input controller. */ - jinit_input_controller(cinfo); - - /* OK, I'm ready */ - cinfo->global_state = DSTATE_START; -} - - -/* - * Destruction of a JPEG decompression object - */ - -GLOBAL(void) -jpeg_destroy_decompress (j_decompress_ptr cinfo) -{ - jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Abort processing of a JPEG decompression operation, - * but don't destroy the object itself. - */ - -GLOBAL(void) -jpeg_abort_decompress (j_decompress_ptr cinfo) -{ - jpeg_abort((j_common_ptr) cinfo); /* use common routine */ -} - - -/* - * Set default decompression parameters. - */ - -LOCAL(void) -default_decompress_parms (j_decompress_ptr cinfo) -{ - /* Guess the input colorspace, and set output colorspace accordingly. */ - /* (Wish JPEG committee had provided a real way to specify this...) */ - /* Note application may override our guesses. */ - switch (cinfo->num_components) { - case 1: - cinfo->jpeg_color_space = JCS_GRAYSCALE; - cinfo->out_color_space = JCS_GRAYSCALE; - break; - - case 3: - if (cinfo->saw_JFIF_marker) { - cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */ - } else if (cinfo->saw_Adobe_marker) { - switch (cinfo->Adobe_transform) { - case 0: - cinfo->jpeg_color_space = JCS_RGB; - break; - case 1: - cinfo->jpeg_color_space = JCS_YCbCr; - break; - default: - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - break; - } - } else { - /* Saw no special markers, try to guess from the component IDs */ - int cid0 = cinfo->comp_info[0].component_id; - int cid1 = cinfo->comp_info[1].component_id; - int cid2 = cinfo->comp_info[2].component_id; - - if (cid0 == 1 && cid1 == 2 && cid2 == 3) - cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */ - else if (cid0 == 82 && cid1 == 71 && cid2 == 66) - cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */ - else { - TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2); - cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */ - } - } - /* Always guess RGB is proper output colorspace. */ - cinfo->out_color_space = JCS_RGB; - break; - - case 4: - if (cinfo->saw_Adobe_marker) { - switch (cinfo->Adobe_transform) { - case 0: - cinfo->jpeg_color_space = JCS_CMYK; - break; - case 2: - cinfo->jpeg_color_space = JCS_YCCK; - break; - default: - WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform); - cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */ - break; - } - } else { - /* No special markers, assume straight CMYK. */ - cinfo->jpeg_color_space = JCS_CMYK; - } - cinfo->out_color_space = JCS_CMYK; - break; - - default: - cinfo->jpeg_color_space = JCS_UNKNOWN; - cinfo->out_color_space = JCS_UNKNOWN; - break; - } - - /* Set defaults for other decompression parameters. */ - cinfo->scale_num = cinfo->block_size; /* 1:1 scaling */ - cinfo->scale_denom = cinfo->block_size; - cinfo->output_gamma = 1.0; - cinfo->buffered_image = FALSE; - cinfo->raw_data_out = FALSE; - cinfo->dct_method = JDCT_DEFAULT; - cinfo->do_fancy_upsampling = TRUE; - cinfo->do_block_smoothing = TRUE; - cinfo->quantize_colors = FALSE; - /* We set these in case application only sets quantize_colors. */ - cinfo->dither_mode = JDITHER_FS; -#ifdef QUANT_2PASS_SUPPORTED - cinfo->two_pass_quantize = TRUE; -#else - cinfo->two_pass_quantize = FALSE; -#endif - cinfo->desired_number_of_colors = 256; - cinfo->colormap = NULL; - /* Initialize for no mode change in buffered-image mode. */ - cinfo->enable_1pass_quant = FALSE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; -} - - -/* - * Decompression startup: read start of JPEG datastream to see what's there. - * Need only initialize JPEG object and supply a data source before calling. - * - * This routine will read as far as the first SOS marker (ie, actual start of - * compressed data), and will save all tables and parameters in the JPEG - * object. It will also initialize the decompression parameters to default - * values, and finally return JPEG_HEADER_OK. On return, the application may - * adjust the decompression parameters and then call jpeg_start_decompress. - * (Or, if the application only wanted to determine the image parameters, - * the data need not be decompressed. In that case, call jpeg_abort or - * jpeg_destroy to release any temporary space.) - * If an abbreviated (tables only) datastream is presented, the routine will - * return JPEG_HEADER_TABLES_ONLY upon reaching EOI. The application may then - * re-use the JPEG object to read the abbreviated image datastream(s). - * It is unnecessary (but OK) to call jpeg_abort in this case. - * The JPEG_SUSPENDED return code only occurs if the data source module - * requests suspension of the decompressor. In this case the application - * should load more source data and then re-call jpeg_read_header to resume - * processing. - * If a non-suspending data source is used and require_image is TRUE, then the - * return code need not be inspected since only JPEG_HEADER_OK is possible. - * - * This routine is now just a front end to jpeg_consume_input, with some - * extra error checking. - */ - -GLOBAL(int) -jpeg_read_header (j_decompress_ptr cinfo, boolean require_image) -{ - int retcode; - - if (cinfo->global_state != DSTATE_START && - cinfo->global_state != DSTATE_INHEADER) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - retcode = jpeg_consume_input(cinfo); - - switch (retcode) { - case JPEG_REACHED_SOS: - retcode = JPEG_HEADER_OK; - break; - case JPEG_REACHED_EOI: - if (require_image) /* Complain if application wanted an image */ - ERREXIT(cinfo, JERR_NO_IMAGE); - /* Reset to start state; it would be safer to require the application to - * call jpeg_abort, but we can't change it now for compatibility reasons. - * A side effect is to free any temporary memory (there shouldn't be any). - */ - jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */ - retcode = JPEG_HEADER_TABLES_ONLY; - break; - case JPEG_SUSPENDED: - /* no work */ - break; - } - - return retcode; -} - - -/* - * Consume data in advance of what the decompressor requires. - * This can be called at any time once the decompressor object has - * been created and a data source has been set up. - * - * This routine is essentially a state machine that handles a couple - * of critical state-transition actions, namely initial setup and - * transition from header scanning to ready-for-start_decompress. - * All the actual input is done via the input controller's consume_input - * method. - */ - -GLOBAL(int) -jpeg_consume_input (j_decompress_ptr cinfo) -{ - int retcode = JPEG_SUSPENDED; - - /* NB: every possible DSTATE value should be listed in this switch */ - switch (cinfo->global_state) { - case DSTATE_START: - /* Start-of-datastream actions: reset appropriate modules */ - (*cinfo->inputctl->reset_input_controller) (cinfo); - /* Initialize application's data source module */ - (*cinfo->src->init_source) (cinfo); - cinfo->global_state = DSTATE_INHEADER; - /*FALLTHROUGH*/ - case DSTATE_INHEADER: - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */ - /* Set up default parameters based on header data */ - default_decompress_parms(cinfo); - /* Set global state: ready for start_decompress */ - cinfo->global_state = DSTATE_READY; - } - break; - case DSTATE_READY: - /* Can't advance past first SOS until start_decompress is called */ - retcode = JPEG_REACHED_SOS; - break; - case DSTATE_PRELOAD: - case DSTATE_PRESCAN: - case DSTATE_SCANNING: - case DSTATE_RAW_OK: - case DSTATE_BUFIMAGE: - case DSTATE_BUFPOST: - case DSTATE_STOPPING: - retcode = (*cinfo->inputctl->consume_input) (cinfo); - break; - default: - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - return retcode; -} - - -/* - * Have we finished reading the input file? - */ - -GLOBAL(boolean) -jpeg_input_complete (j_decompress_ptr cinfo) -{ - /* Check for valid jpeg object */ - if (cinfo->global_state < DSTATE_START || - cinfo->global_state > DSTATE_STOPPING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return cinfo->inputctl->eoi_reached; -} - - -/* - * Is there more than one scan? - */ - -GLOBAL(boolean) -jpeg_has_multiple_scans (j_decompress_ptr cinfo) -{ - /* Only valid after jpeg_read_header completes */ - if (cinfo->global_state < DSTATE_READY || - cinfo->global_state > DSTATE_STOPPING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return cinfo->inputctl->has_multiple_scans; -} - - -/* - * Finish JPEG decompression. - * - * This will normally just verify the file trailer and release temp storage. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_finish_decompress (j_decompress_ptr cinfo) -{ - if ((cinfo->global_state == DSTATE_SCANNING || - cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) { - /* Terminate final pass of non-buffered mode */ - if (cinfo->output_scanline < cinfo->output_height) - ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); - (*cinfo->master->finish_output_pass) (cinfo); - cinfo->global_state = DSTATE_STOPPING; - } else if (cinfo->global_state == DSTATE_BUFIMAGE) { - /* Finishing after a buffered-image operation */ - cinfo->global_state = DSTATE_STOPPING; - } else if (cinfo->global_state != DSTATE_STOPPING) { - /* STOPPING = repeat call after a suspension, anything else is error */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - /* Read until EOI */ - while (! cinfo->inputctl->eoi_reached) { - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - return FALSE; /* Suspend, come back later */ - } - /* Do final cleanup */ - (*cinfo->src->term_source) (cinfo); - /* We can use jpeg_abort to release memory and reset global_state */ - jpeg_abort((j_common_ptr) cinfo); - return TRUE; -} diff --git a/jpeg/jdapistd.c b/jpeg/jdapistd.c deleted file mode 100755 index 9d74537..0000000 --- a/jpeg/jdapistd.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * jdapistd.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains application interface code for the decompression half - * of the JPEG library. These are the "standard" API routines that are - * used in the normal full-decompression case. They are not used by a - * transcoding-only application. Note that if an application links in - * jpeg_start_decompress, it will end up linking in the entire decompressor. - * We thus must separate this file from jdapimin.c to avoid linking the - * whole decompression library into a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(boolean) output_pass_setup JPP((j_decompress_ptr cinfo)); - - -/* - * Decompression initialization. - * jpeg_read_header must be completed before calling this. - * - * If a multipass operating mode was selected, this will do all but the - * last pass, and thus may take a great deal of time. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_start_decompress (j_decompress_ptr cinfo) -{ - if (cinfo->global_state == DSTATE_READY) { - /* First call: initialize master control, select active modules */ - jinit_master_decompress(cinfo); - if (cinfo->buffered_image) { - /* No more work here; expecting jpeg_start_output next */ - cinfo->global_state = DSTATE_BUFIMAGE; - return TRUE; - } - cinfo->global_state = DSTATE_PRELOAD; - } - if (cinfo->global_state == DSTATE_PRELOAD) { - /* If file has multiple scans, absorb them all into the coef buffer */ - if (cinfo->inputctl->has_multiple_scans) { -#ifdef D_MULTISCAN_FILES_SUPPORTED - for (;;) { - int retcode; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - /* Absorb some more input */ - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_SUSPENDED) - return FALSE; - if (retcode == JPEG_REACHED_EOI) - break; - /* Advance progress counter if appropriate */ - if (cinfo->progress != NULL && - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - /* jdmaster underestimated number of scans; ratchet up one scan */ - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - } - } - } -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - } - cinfo->output_scan_number = cinfo->input_scan_number; - } else if (cinfo->global_state != DSTATE_PRESCAN) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Perform any dummy output passes, and set up for the final pass */ - return output_pass_setup(cinfo); -} - - -/* - * Set up for an output pass, and perform any dummy pass(es) needed. - * Common subroutine for jpeg_start_decompress and jpeg_start_output. - * Entry: global_state = DSTATE_PRESCAN only if previously suspended. - * Exit: If done, returns TRUE and sets global_state for proper output mode. - * If suspended, returns FALSE and sets global_state = DSTATE_PRESCAN. - */ - -LOCAL(boolean) -output_pass_setup (j_decompress_ptr cinfo) -{ - if (cinfo->global_state != DSTATE_PRESCAN) { - /* First call: do pass setup */ - (*cinfo->master->prepare_for_output_pass) (cinfo); - cinfo->output_scanline = 0; - cinfo->global_state = DSTATE_PRESCAN; - } - /* Loop over any required dummy passes */ - while (cinfo->master->is_dummy_pass) { -#ifdef QUANT_2PASS_SUPPORTED - /* Crank through the dummy pass */ - while (cinfo->output_scanline < cinfo->output_height) { - JDIMENSION last_scanline; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - /* Process some data */ - last_scanline = cinfo->output_scanline; - (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL, - &cinfo->output_scanline, (JDIMENSION) 0); - if (cinfo->output_scanline == last_scanline) - return FALSE; /* No progress made, must suspend */ - } - /* Finish up dummy pass, and set up for another one */ - (*cinfo->master->finish_output_pass) (cinfo); - (*cinfo->master->prepare_for_output_pass) (cinfo); - cinfo->output_scanline = 0; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* QUANT_2PASS_SUPPORTED */ - } - /* Ready for application to drive output pass through - * jpeg_read_scanlines or jpeg_read_raw_data. - */ - cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING; - return TRUE; -} - - -/* - * Read some scanlines of data from the JPEG decompressor. - * - * The return value will be the number of lines actually read. - * This may be less than the number requested in several cases, - * including bottom of image, data source suspension, and operating - * modes that emit multiple scanlines at a time. - * - * Note: we warn about excess calls to jpeg_read_scanlines() since - * this likely signals an application programmer error. However, - * an oversize buffer (max_lines > scanlines remaining) is not an error. - */ - -GLOBAL(JDIMENSION) -jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines, - JDIMENSION max_lines) -{ - JDIMENSION row_ctr; - - if (cinfo->global_state != DSTATE_SCANNING) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->output_scanline >= cinfo->output_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Process some data */ - row_ctr = 0; - (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines); - cinfo->output_scanline += row_ctr; - return row_ctr; -} - - -/* - * Alternate entry point to read raw data. - * Processes exactly one iMCU row per call, unless suspended. - */ - -GLOBAL(JDIMENSION) -jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data, - JDIMENSION max_lines) -{ - JDIMENSION lines_per_iMCU_row; - - if (cinfo->global_state != DSTATE_RAW_OK) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - if (cinfo->output_scanline >= cinfo->output_height) { - WARNMS(cinfo, JWRN_TOO_MUCH_DATA); - return 0; - } - - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) { - cinfo->progress->pass_counter = (long) cinfo->output_scanline; - cinfo->progress->pass_limit = (long) cinfo->output_height; - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - } - - /* Verify that at least one iMCU row can be returned. */ - lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_v_scaled_size; - if (max_lines < lines_per_iMCU_row) - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* Decompress directly into user's buffer. */ - if (! (*cinfo->coef->decompress_data) (cinfo, data)) - return 0; /* suspension forced, can do nothing more */ - - /* OK, we processed one iMCU row. */ - cinfo->output_scanline += lines_per_iMCU_row; - return lines_per_iMCU_row; -} - - -/* Additional entry points for buffered-image mode. */ - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Initialize for an output pass in buffered-image mode. - */ - -GLOBAL(boolean) -jpeg_start_output (j_decompress_ptr cinfo, int scan_number) -{ - if (cinfo->global_state != DSTATE_BUFIMAGE && - cinfo->global_state != DSTATE_PRESCAN) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - /* Limit scan number to valid range */ - if (scan_number <= 0) - scan_number = 1; - if (cinfo->inputctl->eoi_reached && - scan_number > cinfo->input_scan_number) - scan_number = cinfo->input_scan_number; - cinfo->output_scan_number = scan_number; - /* Perform any dummy output passes, and set up for the real pass */ - return output_pass_setup(cinfo); -} - - -/* - * Finish up after an output pass in buffered-image mode. - * - * Returns FALSE if suspended. The return value need be inspected only if - * a suspending data source is used. - */ - -GLOBAL(boolean) -jpeg_finish_output (j_decompress_ptr cinfo) -{ - if ((cinfo->global_state == DSTATE_SCANNING || - cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) { - /* Terminate this pass. */ - /* We do not require the whole pass to have been completed. */ - (*cinfo->master->finish_output_pass) (cinfo); - cinfo->global_state = DSTATE_BUFPOST; - } else if (cinfo->global_state != DSTATE_BUFPOST) { - /* BUFPOST = repeat call after a suspension, anything else is error */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - } - /* Read markers looking for SOS or EOI */ - while (cinfo->input_scan_number <= cinfo->output_scan_number && - ! cinfo->inputctl->eoi_reached) { - if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED) - return FALSE; /* Suspend, come back later */ - } - cinfo->global_state = DSTATE_BUFIMAGE; - return TRUE; -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ diff --git a/jpeg/jdarith.c b/jpeg/jdarith.c deleted file mode 100755 index 092f8af..0000000 --- a/jpeg/jdarith.c +++ /dev/null @@ -1,776 +0,0 @@ -/* - * jdarith.c - * - * Developed 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains portable arithmetic entropy decoding routines for JPEG - * (implementing the ISO/IEC IS 10918-1 and CCITT Recommendation ITU-T T.81). - * - * Both sequential and progressive modes are supported in this single module. - * - * Suspension is not currently supported in this module. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Expanded entropy decoder object for arithmetic decoding. */ - -typedef struct { - struct jpeg_entropy_decoder pub; /* public fields */ - - INT32 c; /* C register, base of coding interval + input bit buffer */ - INT32 a; /* A register, normalized size of coding interval */ - int ct; /* bit shift counter, # of bits left in bit buffer part of C */ - /* init: ct = -16 */ - /* run: ct = 0..7 */ - /* error: ct = -1 */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ - int dc_context[MAX_COMPS_IN_SCAN]; /* context index for DC conditioning */ - - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - - /* Pointers to statistics areas (these workspaces have image lifespan) */ - unsigned char * dc_stats[NUM_ARITH_TBLS]; - unsigned char * ac_stats[NUM_ARITH_TBLS]; - - /* Statistics bin for coding with fixed probability 0.5 */ - unsigned char fixed_bin[4]; -} arith_entropy_decoder; - -typedef arith_entropy_decoder * arith_entropy_ptr; - -/* The following two definitions specify the allocation chunk size - * for the statistics area. - * According to sections F.1.4.4.1.3 and F.1.4.4.2, we need at least - * 49 statistics bins for DC, and 245 statistics bins for AC coding. - * - * We use a compact representation with 1 byte per statistics bin, - * thus the numbers directly represent byte sizes. - * This 1 byte per statistics bin contains the meaning of the MPS - * (more probable symbol) in the highest bit (mask 0x80), and the - * index into the probability estimation state machine table - * in the lower bits (mask 0x7F). - */ - -#define DC_STAT_BINS 64 -#define AC_STAT_BINS 256 - - -LOCAL(int) -get_byte (j_decompress_ptr cinfo) -/* Read next input byte; we do not support suspension in this module. */ -{ - struct jpeg_source_mgr * src = cinfo->src; - - if (src->bytes_in_buffer == 0) - if (! (*src->fill_input_buffer) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - src->bytes_in_buffer--; - return GETJOCTET(*src->next_input_byte++); -} - - -/* - * The core arithmetic decoding routine (common in JPEG and JBIG). - * This needs to go as fast as possible. - * Machine-dependent optimization facilities - * are not utilized in this portable implementation. - * However, this code should be fairly efficient and - * may be a good base for further optimizations anyway. - * - * Return value is 0 or 1 (binary decision). - * - * Note: I've changed the handling of the code base & bit - * buffer register C compared to other implementations - * based on the standards layout & procedures. - * While it also contains both the actual base of the - * coding interval (16 bits) and the next-bits buffer, - * the cut-point between these two parts is floating - * (instead of fixed) with the bit shift counter CT. - * Thus, we also need only one (variable instead of - * fixed size) shift for the LPS/MPS decision, and - * we can get away with any renormalization update - * of C (except for new data insertion, of course). - * - * I've also introduced a new scheme for accessing - * the probability estimation state machine table, - * derived from Markus Kuhn's JBIG implementation. - */ - -LOCAL(int) -arith_decode (j_decompress_ptr cinfo, unsigned char *st) -{ - register arith_entropy_ptr e = (arith_entropy_ptr) cinfo->entropy; - register unsigned char nl, nm; - register INT32 qe, temp; - register int sv, data; - - /* Renormalization & data input per section D.2.6 */ - while (e->a < 0x8000L) { - if (--e->ct < 0) { - /* Need to fetch next data byte */ - if (cinfo->unread_marker) - data = 0; /* stuff zero data */ - else { - data = get_byte(cinfo); /* read next input byte */ - if (data == 0xFF) { /* zero stuff or marker code */ - do data = get_byte(cinfo); - while (data == 0xFF); /* swallow extra 0xFF bytes */ - if (data == 0) - data = 0xFF; /* discard stuffed zero byte */ - else { - /* Note: Different from the Huffman decoder, hitting - * a marker while processing the compressed data - * segment is legal in arithmetic coding. - * The convention is to supply zero data - * then until decoding is complete. - */ - cinfo->unread_marker = data; - data = 0; - } - } - } - e->c = (e->c << 8) | data; /* insert data into C register */ - if ((e->ct += 8) < 0) /* update bit shift counter */ - /* Need more initial bytes */ - if (++e->ct == 0) - /* Got 2 initial bytes -> re-init A and exit loop */ - e->a = 0x8000L; /* => e->a = 0x10000L after loop exit */ - } - e->a <<= 1; - } - - /* Fetch values from our compact representation of Table D.3(D.2): - * Qe values and probability estimation state machine - */ - sv = *st; - qe = jpeg_aritab[sv & 0x7F]; /* => Qe_Value */ - nl = qe & 0xFF; qe >>= 8; /* Next_Index_LPS + Switch_MPS */ - nm = qe & 0xFF; qe >>= 8; /* Next_Index_MPS */ - - /* Decode & estimation procedures per sections D.2.4 & D.2.5 */ - temp = e->a - qe; - e->a = temp; - temp <<= e->ct; - if (e->c >= temp) { - e->c -= temp; - /* Conditional LPS (less probable symbol) exchange */ - if (e->a < qe) { - e->a = qe; - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } else { - e->a = qe; - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - sv ^= 0x80; /* Exchange LPS/MPS */ - } - } else if (e->a < 0x8000L) { - /* Conditional MPS (more probable symbol) exchange */ - if (e->a < qe) { - *st = (sv & 0x80) ^ nl; /* Estimate_after_LPS */ - sv ^= 0x80; /* Exchange LPS/MPS */ - } else { - *st = (sv & 0x80) ^ nm; /* Estimate_after_MPS */ - } - } - - return sv >> 7; -} - - -/* - * Check for a restart marker & resynchronize decoder. - */ - -LOCAL(void) -process_restart (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci; - jpeg_component_info * compptr; - - /* Advance past the RSTn marker */ - if (! (*cinfo->marker->read_restart_marker) (cinfo)) - ERREXIT(cinfo, JERR_CANT_SUSPEND); - - /* Re-initialize statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { - MEMZERO(entropy->dc_stats[compptr->dc_tbl_no], DC_STAT_BINS); - /* Reset DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - if ((! cinfo->progressive_mode && cinfo->lim_Se) || - (cinfo->progressive_mode && cinfo->Ss)) { - MEMZERO(entropy->ac_stats[compptr->ac_tbl_no], AC_STAT_BINS); - } - } - - /* Reset arithmetic decoding variables */ - entropy->c = 0; - entropy->a = 0; - entropy->ct = -16; /* force reading 2 initial bytes to fill C */ - - /* Reset restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Arithmetic MCU decoding. - * Each of these routines decodes and returns one MCU's worth of - * arithmetic-compressed coefficients. - * The coefficients are reordered from zigzag order into natural array order, - * but are not dequantized. - * - * The i'th block of the MCU is stored into the block pointed to by - * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. - */ - -/* - * MCU decoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, sign; - int v, m; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - tbl = cinfo->cur_comp_info[ci]->dc_tbl_no; - - /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.19: Decode_DC_DIFF */ - if (arith_decode(cinfo, st) == 0) - entropy->dc_context[ci] = 0; - else { - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, st + 1); - st += 2; st += sign; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ - else - entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - entropy->last_dc_val[ci] += v; - } - - /* Scale and output the DC coefficient (assumes jpeg_natural_order[0]=0) */ - (*block)[0] = (JCOEF) (entropy->last_dc_val[ci] << cinfo->Al); - } - - return TRUE; -} - - -/* - * MCU decoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - unsigned char *st; - int tbl, sign, k; - int v, m; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ - - /* Figure F.20: Decode_AC_coefficients */ - for (k = cinfo->Ss; k <= cinfo->Se; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (arith_decode(cinfo, st)) break; /* EOB flag */ - while (arith_decode(cinfo, st + 1) == 0) { - st += 3; k++; - if (k > cinfo->Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, entropy->fixed_bin); - st += 2; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - if (arith_decode(cinfo, st)) { - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - } - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - /* Scale and output coefficient in natural (dezigzagged) order */ - (*block)[natural_order[k]] = (JCOEF) (v << cinfo->Al); - } - - return TRUE; -} - - -/* - * MCU decoding for DC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - unsigned char *st; - int p1, blkn; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - st = entropy->fixed_bin; /* use fixed probability estimation */ - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - /* Encoded data is simply the next bit of the two's-complement DC value */ - if (arith_decode(cinfo, st)) - MCU_data[blkn][0][0] |= p1; - } - - return TRUE; -} - - -/* - * MCU decoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - JBLOCKROW block; - JCOEFPTR thiscoef; - unsigned char *st; - int tbl, k, kex; - int p1, m1; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = cinfo->cur_comp_info[0]->ac_tbl_no; - - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ - - /* Establish EOBx (previous stage end-of-block) index */ - for (kex = cinfo->Se; kex > 0; kex--) - if ((*block)[natural_order[kex]]) break; - - for (k = cinfo->Ss; k <= cinfo->Se; k++) { - st = entropy->ac_stats[tbl] + 3 * (k - 1); - if (k > kex) - if (arith_decode(cinfo, st)) break; /* EOB flag */ - for (;;) { - thiscoef = *block + natural_order[k]; - if (*thiscoef) { /* previously nonzero coef */ - if (arith_decode(cinfo, st + 2)) { - if (*thiscoef < 0) - *thiscoef += m1; - else - *thiscoef += p1; - } - break; - } - if (arith_decode(cinfo, st + 1)) { /* newly nonzero coef */ - if (arith_decode(cinfo, entropy->fixed_bin)) - *thiscoef = m1; - else - *thiscoef = p1; - break; - } - st += 3; k++; - if (k > cinfo->Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - } - - return TRUE; -} - - -/* - * Decode one MCU's worth of arithmetic-compressed coefficients. - */ - -METHODDEF(boolean) -decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - jpeg_component_info * compptr; - JBLOCKROW block; - unsigned char *st; - int blkn, ci, tbl, sign, k; - int v, m; - const int * natural_order; - - /* Process restart marker if needed */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - process_restart(cinfo); - entropy->restarts_to_go--; - } - - if (entropy->ct == -1) return TRUE; /* if error do nothing */ - - natural_order = cinfo->natural_order; - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - - /* Sections F.2.4.1 & F.1.4.4.1: Decoding of DC coefficients */ - - tbl = compptr->dc_tbl_no; - - /* Table F.4: Point to statistics bin S0 for DC coefficient coding */ - st = entropy->dc_stats[tbl] + entropy->dc_context[ci]; - - /* Figure F.19: Decode_DC_DIFF */ - if (arith_decode(cinfo, st) == 0) - entropy->dc_context[ci] = 0; - else { - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, st + 1); - st += 2; st += sign; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - st = entropy->dc_stats[tbl] + 20; /* Table F.4: X1 = 20 */ - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - /* Section F.1.4.4.1.2: Establish dc_context conditioning category */ - if (m < (int) ((1L << cinfo->arith_dc_L[tbl]) >> 1)) - entropy->dc_context[ci] = 0; /* zero diff category */ - else if (m > (int) ((1L << cinfo->arith_dc_U[tbl]) >> 1)) - entropy->dc_context[ci] = 12 + (sign * 4); /* large diff category */ - else - entropy->dc_context[ci] = 4 + (sign * 4); /* small diff category */ - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - entropy->last_dc_val[ci] += v; - } - - (*block)[0] = (JCOEF) entropy->last_dc_val[ci]; - - /* Sections F.2.4.2 & F.1.4.4.2: Decoding of AC coefficients */ - - if (cinfo->lim_Se == 0) continue; - tbl = compptr->ac_tbl_no; - k = 0; - - /* Figure F.20: Decode_AC_coefficients */ - do { - st = entropy->ac_stats[tbl] + 3 * k; - if (arith_decode(cinfo, st)) break; /* EOB flag */ - for (;;) { - k++; - if (arith_decode(cinfo, st + 1)) break; - st += 3; - if (k >= cinfo->lim_Se) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* spectral overflow */ - return TRUE; - } - } - /* Figure F.21: Decoding nonzero value v */ - /* Figure F.22: Decoding the sign of v */ - sign = arith_decode(cinfo, entropy->fixed_bin); - st += 2; - /* Figure F.23: Decoding the magnitude category of v */ - if ((m = arith_decode(cinfo, st)) != 0) { - if (arith_decode(cinfo, st)) { - m <<= 1; - st = entropy->ac_stats[tbl] + - (k <= cinfo->arith_ac_K[tbl] ? 189 : 217); - while (arith_decode(cinfo, st)) { - if ((m <<= 1) == 0x8000) { - WARNMS(cinfo, JWRN_ARITH_BAD_CODE); - entropy->ct = -1; /* magnitude overflow */ - return TRUE; - } - st += 1; - } - } - } - v = m; - /* Figure F.24: Decoding the magnitude bit pattern of v */ - st += 14; - while (m >>= 1) - if (arith_decode(cinfo, st)) v |= m; - v += 1; if (sign) v = -v; - (*block)[natural_order[k]] = (JCOEF) v; - } while (k < cinfo->lim_Se); - } - - return TRUE; -} - - -/* - * Initialize for an arithmetic-compressed scan. - */ - -METHODDEF(void) -start_pass (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy = (arith_entropy_ptr) cinfo->entropy; - int ci, tbl; - jpeg_component_info * compptr; - - if (cinfo->progressive_mode) { - /* Validate progressive scan parameters */ - if (cinfo->Ss == 0) { - if (cinfo->Se != 0) - goto bad; - } else { - /* need not check Ss/Se < 0 since they came from unsigned bytes */ - if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) - goto bad; - /* AC scans may have only one component */ - if (cinfo->comps_in_scan != 1) - goto bad; - } - if (cinfo->Ah != 0) { - /* Successive approximation refinement scan: must have Al = Ah-1. */ - if (cinfo->Ah-1 != cinfo->Al) - goto bad; - } - if (cinfo->Al > 13) { /* need not check for < 0 */ - bad: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - } - /* Update progression status, and verify that scan order is legal. - * Note that inter-scan inconsistencies are treated as warnings - * not fatal errors ... not clear if this is right way to behave. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; - int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; - if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); - for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { - int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; - if (cinfo->Ah != expected) - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); - coef_bit_ptr[coefi] = cinfo->Al; - } - } - /* Select MCU decoding routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_first; - else - entropy->pub.decode_mcu = decode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_refine; - else - entropy->pub.decode_mcu = decode_mcu_AC_refine; - } - } else { - /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. - * This ought to be an error condition, but we make it a warning. - */ - if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || - (cinfo->Se < DCTSIZE2 && cinfo->Se != cinfo->lim_Se)) - WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); - /* Select MCU decoding routine */ - entropy->pub.decode_mcu = decode_mcu; - } - - /* Allocate & initialize requested statistics areas */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) { - tbl = compptr->dc_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->dc_stats[tbl] == NULL) - entropy->dc_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, DC_STAT_BINS); - MEMZERO(entropy->dc_stats[tbl], DC_STAT_BINS); - /* Initialize DC predictions to 0 */ - entropy->last_dc_val[ci] = 0; - entropy->dc_context[ci] = 0; - } - if ((! cinfo->progressive_mode && cinfo->lim_Se) || - (cinfo->progressive_mode && cinfo->Ss)) { - tbl = compptr->ac_tbl_no; - if (tbl < 0 || tbl >= NUM_ARITH_TBLS) - ERREXIT1(cinfo, JERR_NO_ARITH_TABLE, tbl); - if (entropy->ac_stats[tbl] == NULL) - entropy->ac_stats[tbl] = (unsigned char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, AC_STAT_BINS); - MEMZERO(entropy->ac_stats[tbl], AC_STAT_BINS); - } - } - - /* Initialize arithmetic decoding variables */ - entropy->c = 0; - entropy->a = 0; - entropy->ct = -16; /* force reading 2 initial bytes to fill C */ - - /* Initialize restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Module initialization routine for arithmetic entropy decoding. - */ - -GLOBAL(void) -jinit_arith_decoder (j_decompress_ptr cinfo) -{ - arith_entropy_ptr entropy; - int i; - - entropy = (arith_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(arith_entropy_decoder)); - cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; - entropy->pub.start_pass = start_pass; - - /* Mark tables unallocated */ - for (i = 0; i < NUM_ARITH_TBLS; i++) { - entropy->dc_stats[i] = NULL; - entropy->ac_stats[i] = NULL; - } - - /* Initialize index for fixed probability estimation */ - entropy->fixed_bin[0] = 113; - - if (cinfo->progressive_mode) { - /* Create progression status table */ - int *coef_bit_ptr, ci; - cinfo->coef_bits = (int (*)[DCTSIZE2]) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components*DCTSIZE2*SIZEOF(int)); - coef_bit_ptr = & cinfo->coef_bits[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (i = 0; i < DCTSIZE2; i++) - *coef_bit_ptr++ = -1; - } -} diff --git a/jpeg/jdatadst.c b/jpeg/jdatadst.c deleted file mode 100755 index 6981fb7..0000000 --- a/jpeg/jdatadst.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * jdatadst.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2012 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains compression data destination routines for the case of - * emitting JPEG data to memory or to a file (or any stdio stream). - * While these routines are sufficient for most applications, - * some will want to use a different destination manager. - * IMPORTANT: we assume that fwrite() will correctly transcribe an array of - * JOCTETs into 8-bit-wide elements on external storage. If char is wider - * than 8 bits on your machine, you may need to do some tweaking. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - - -/* Expanded data destination object for stdio output */ - -typedef struct { - struct jpeg_destination_mgr pub; /* public fields */ - - FILE * outfile; /* target stream */ - JOCTET * buffer; /* start of buffer */ -} my_destination_mgr; - -typedef my_destination_mgr * my_dest_ptr; - -#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */ - - -/* Expanded data destination object for memory output */ - -typedef struct { - struct jpeg_destination_mgr pub; /* public fields */ - - unsigned char ** outbuffer; /* target buffer */ - unsigned long * outsize; - unsigned char * newbuffer; /* newly allocated buffer */ - JOCTET * buffer; /* start of buffer */ - size_t bufsize; -} my_mem_destination_mgr; - -typedef my_mem_destination_mgr * my_mem_dest_ptr; - - -/* - * Initialize destination --- called by jpeg_start_compress - * before any data is actually written. - */ - -METHODDEF(void) -init_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - /* Allocate the output buffer --- it will be released when done with image */ - dest->buffer = (JOCTET *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - OUTPUT_BUF_SIZE * SIZEOF(JOCTET)); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; -} - -METHODDEF(void) -init_mem_destination (j_compress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Empty the output buffer --- called whenever buffer fills up. - * - * In typical applications, this should write the entire output buffer - * (ignoring the current state of next_output_byte & free_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been dumped. - * - * In applications that need to be able to suspend compression due to output - * overrun, a FALSE return indicates that the buffer cannot be emptied now. - * In this situation, the compressor will return to its caller (possibly with - * an indication that it has not accepted all the supplied scanlines). The - * application should resume compression after it has made more room in the - * output buffer. Note that there are substantial restrictions on the use of - * suspension --- see the documentation. - * - * When suspending, the compressor will back up to a convenient restart point - * (typically the start of the current MCU). next_output_byte & free_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point will be regenerated after resumption, so do not - * write it out when emptying the buffer externally. - */ - -METHODDEF(boolean) -empty_output_buffer (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - - if (JFWRITE(dest->outfile, dest->buffer, OUTPUT_BUF_SIZE) != - (size_t) OUTPUT_BUF_SIZE) - ERREXIT(cinfo, JERR_FILE_WRITE); - - dest->pub.next_output_byte = dest->buffer; - dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; - - return TRUE; -} - -METHODDEF(boolean) -empty_mem_output_buffer (j_compress_ptr cinfo) -{ - size_t nextsize; - JOCTET * nextbuffer; - my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; - - /* Try to allocate new buffer with double size */ - nextsize = dest->bufsize * 2; - nextbuffer = (JOCTET *) malloc(nextsize); - - if (nextbuffer == NULL) - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); - - MEMCOPY(nextbuffer, dest->buffer, dest->bufsize); - - if (dest->newbuffer != NULL) - free(dest->newbuffer); - - dest->newbuffer = nextbuffer; - - dest->pub.next_output_byte = nextbuffer + dest->bufsize; - dest->pub.free_in_buffer = dest->bufsize; - - dest->buffer = nextbuffer; - dest->bufsize = nextsize; - - return TRUE; -} - - -/* - * Terminate destination --- called by jpeg_finish_compress - * after all data has been written. Usually needs to flush buffer. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -METHODDEF(void) -term_destination (j_compress_ptr cinfo) -{ - my_dest_ptr dest = (my_dest_ptr) cinfo->dest; - size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer; - - /* Write any data remaining in the buffer */ - if (datacount > 0) { - if (JFWRITE(dest->outfile, dest->buffer, datacount) != datacount) - ERREXIT(cinfo, JERR_FILE_WRITE); - } - fflush(dest->outfile); - /* Make sure we wrote the output file OK */ - if (ferror(dest->outfile)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - -METHODDEF(void) -term_mem_destination (j_compress_ptr cinfo) -{ - my_mem_dest_ptr dest = (my_mem_dest_ptr) cinfo->dest; - - *dest->outbuffer = dest->buffer; - *dest->outsize = dest->bufsize - dest->pub.free_in_buffer; -} - - -/* - * Prepare for output to a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing compression. - */ - -GLOBAL(void) -jpeg_stdio_dest (j_compress_ptr cinfo, FILE * outfile) -{ - my_dest_ptr dest; - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same file without re-executing jpeg_stdio_dest. - * This makes it dangerous to use this manager and a different destination - * manager serially with the same JPEG object, because their private object - * sizes may be different. Caveat programmer. - */ - if (cinfo->dest == NULL) { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_destination_mgr)); - } - - dest = (my_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_destination; - dest->pub.empty_output_buffer = empty_output_buffer; - dest->pub.term_destination = term_destination; - dest->outfile = outfile; -} - - -/* - * Prepare for output to a memory buffer. - * The caller may supply an own initial buffer with appropriate size. - * Otherwise, or when the actual data output exceeds the given size, - * the library adapts the buffer size as necessary. - * The standard library functions malloc/free are used for allocating - * larger memory, so the buffer is available to the application after - * finishing compression, and then the application is responsible for - * freeing the requested memory. - */ - -GLOBAL(void) -jpeg_mem_dest (j_compress_ptr cinfo, - unsigned char ** outbuffer, unsigned long * outsize) -{ - my_mem_dest_ptr dest; - - if (outbuffer == NULL || outsize == NULL) /* sanity check */ - ERREXIT(cinfo, JERR_BUFFER_SIZE); - - /* The destination object is made permanent so that multiple JPEG images - * can be written to the same buffer without re-executing jpeg_mem_dest. - */ - if (cinfo->dest == NULL) { /* first time for this JPEG object? */ - cinfo->dest = (struct jpeg_destination_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_mem_destination_mgr)); - } - - dest = (my_mem_dest_ptr) cinfo->dest; - dest->pub.init_destination = init_mem_destination; - dest->pub.empty_output_buffer = empty_mem_output_buffer; - dest->pub.term_destination = term_mem_destination; - dest->outbuffer = outbuffer; - dest->outsize = outsize; - dest->newbuffer = NULL; - - if (*outbuffer == NULL || *outsize == 0) { - /* Allocate initial buffer */ - dest->newbuffer = *outbuffer = (unsigned char *) malloc(OUTPUT_BUF_SIZE); - if (dest->newbuffer == NULL) - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 10); - *outsize = OUTPUT_BUF_SIZE; - } - - dest->pub.next_output_byte = dest->buffer = *outbuffer; - dest->pub.free_in_buffer = dest->bufsize = *outsize; -} diff --git a/jpeg/jdatasrc.c b/jpeg/jdatasrc.c deleted file mode 100755 index 7be59a8..0000000 --- a/jpeg/jdatasrc.c +++ /dev/null @@ -1,275 +0,0 @@ -/* - * jdatasrc.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains decompression data source routines for the case of - * reading JPEG data from memory or from a file (or any stdio stream). - * While these routines are sufficient for most applications, - * some will want to use a different source manager. - * IMPORTANT: we assume that fread() will correctly transcribe an array of - * JOCTETs from 8-bit-wide elements on external storage. If char is wider - * than 8 bits on your machine, you may need to do some tweaking. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jerror.h" - - -/* Expanded data source object for stdio input */ - -typedef struct { - struct jpeg_source_mgr pub; /* public fields */ - - FILE * infile; /* source stream */ - JOCTET * buffer; /* start of buffer */ - boolean start_of_file; /* have we gotten any data yet? */ -} my_source_mgr; - -typedef my_source_mgr * my_src_ptr; - -#define INPUT_BUF_SIZE 4096 /* choose an efficiently fread'able size */ - - -/* - * Initialize source --- called by jpeg_read_header - * before any data is actually read. - */ - -METHODDEF(void) -init_source (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - - /* We reset the empty-input-file flag for each image, - * but we don't clear the input buffer. - * This is correct behavior for reading a series of images from one source. - */ - src->start_of_file = TRUE; -} - -METHODDEF(void) -init_mem_source (j_decompress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Fill the input buffer --- called whenever buffer is emptied. - * - * In typical applications, this should read fresh data into the buffer - * (ignoring the current state of next_input_byte & bytes_in_buffer), - * reset the pointer & count to the start of the buffer, and return TRUE - * indicating that the buffer has been reloaded. It is not necessary to - * fill the buffer entirely, only to obtain at least one more byte. - * - * There is no such thing as an EOF return. If the end of the file has been - * reached, the routine has a choice of ERREXIT() or inserting fake data into - * the buffer. In most cases, generating a warning message and inserting a - * fake EOI marker is the best course of action --- this will allow the - * decompressor to output however much of the image is there. However, - * the resulting error message is misleading if the real problem is an empty - * input file, so we handle that case specially. - * - * In applications that need to be able to suspend compression due to input - * not being available yet, a FALSE return indicates that no more data can be - * obtained right now, but more may be forthcoming later. In this situation, - * the decompressor will return to its caller (with an indication of the - * number of scanlines it has read, if any). The application should resume - * decompression after it has loaded more data into the input buffer. Note - * that there are substantial restrictions on the use of suspension --- see - * the documentation. - * - * When suspending, the decompressor will back up to a convenient restart point - * (typically the start of the current MCU). next_input_byte & bytes_in_buffer - * indicate where the restart point will be if the current call returns FALSE. - * Data beyond this point must be rescanned after resumption, so move it to - * the front of the buffer rather than discarding it. - */ - -METHODDEF(boolean) -fill_input_buffer (j_decompress_ptr cinfo) -{ - my_src_ptr src = (my_src_ptr) cinfo->src; - size_t nbytes; - - nbytes = JFREAD(src->infile, src->buffer, INPUT_BUF_SIZE); - - if (nbytes <= 0) { - if (src->start_of_file) /* Treat empty input file as fatal error */ - ERREXIT(cinfo, JERR_INPUT_EMPTY); - WARNMS(cinfo, JWRN_JPEG_EOF); - /* Insert a fake EOI marker */ - src->buffer[0] = (JOCTET) 0xFF; - src->buffer[1] = (JOCTET) JPEG_EOI; - nbytes = 2; - } - - src->pub.next_input_byte = src->buffer; - src->pub.bytes_in_buffer = nbytes; - src->start_of_file = FALSE; - - return TRUE; -} - -METHODDEF(boolean) -fill_mem_input_buffer (j_decompress_ptr cinfo) -{ - static const JOCTET mybuffer[4] = { - (JOCTET) 0xFF, (JOCTET) JPEG_EOI, 0, 0 - }; - - /* The whole JPEG data is expected to reside in the supplied memory - * buffer, so any request for more data beyond the given buffer size - * is treated as an error. - */ - WARNMS(cinfo, JWRN_JPEG_EOF); - - /* Insert a fake EOI marker */ - - cinfo->src->next_input_byte = mybuffer; - cinfo->src->bytes_in_buffer = 2; - - return TRUE; -} - - -/* - * Skip data --- used to skip over a potentially large amount of - * uninteresting data (such as an APPn marker). - * - * Writers of suspendable-input applications must note that skip_input_data - * is not granted the right to give a suspension return. If the skip extends - * beyond the data currently in the buffer, the buffer can be marked empty so - * that the next read will cause a fill_input_buffer call that can suspend. - * Arranging for additional bytes to be discarded before reloading the input - * buffer is the application writer's problem. - */ - -METHODDEF(void) -skip_input_data (j_decompress_ptr cinfo, long num_bytes) -{ - struct jpeg_source_mgr * src = cinfo->src; - - /* Just a dumb implementation for now. Could use fseek() except - * it doesn't work on pipes. Not clear that being smart is worth - * any trouble anyway --- large skips are infrequent. - */ - if (num_bytes > 0) { - while (num_bytes > (long) src->bytes_in_buffer) { - num_bytes -= (long) src->bytes_in_buffer; - (void) (*src->fill_input_buffer) (cinfo); - /* note we assume that fill_input_buffer will never return FALSE, - * so suspension need not be handled. - */ - } - src->next_input_byte += (size_t) num_bytes; - src->bytes_in_buffer -= (size_t) num_bytes; - } -} - - -/* - * An additional method that can be provided by data source modules is the - * resync_to_restart method for error recovery in the presence of RST markers. - * For the moment, this source module just uses the default resync method - * provided by the JPEG library. That method assumes that no backtracking - * is possible. - */ - - -/* - * Terminate source --- called by jpeg_finish_decompress - * after all data has been read. Often a no-op. - * - * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding - * application must deal with any cleanup that should happen even - * for error exit. - */ - -METHODDEF(void) -term_source (j_decompress_ptr cinfo) -{ - /* no work necessary here */ -} - - -/* - * Prepare for input from a stdio stream. - * The caller must have already opened the stream, and is responsible - * for closing it after finishing decompression. - */ - -GLOBAL(void) -jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile) -{ - my_src_ptr src; - - /* The source object and input buffer are made permanent so that a series - * of JPEG images can be read from the same file by calling jpeg_stdio_src - * only before the first one. (If we discarded the buffer at the end of - * one image, we'd likely lose the start of the next one.) - * This makes it unsafe to use this manager and a different source - * manager serially with the same JPEG object. Caveat programmer. - */ - if (cinfo->src == NULL) { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_source_mgr)); - src = (my_src_ptr) cinfo->src; - src->buffer = (JOCTET *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - INPUT_BUF_SIZE * SIZEOF(JOCTET)); - } - - src = (my_src_ptr) cinfo->src; - src->pub.init_source = init_source; - src->pub.fill_input_buffer = fill_input_buffer; - src->pub.skip_input_data = skip_input_data; - src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->pub.term_source = term_source; - src->infile = infile; - src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ - src->pub.next_input_byte = NULL; /* until buffer loaded */ -} - - -/* - * Prepare for input from a supplied memory buffer. - * The buffer must contain the whole JPEG data. - */ - -GLOBAL(void) -jpeg_mem_src (j_decompress_ptr cinfo, - unsigned char * inbuffer, unsigned long insize) -{ - struct jpeg_source_mgr * src; - - if (inbuffer == NULL || insize == 0) /* Treat empty input as fatal error */ - ERREXIT(cinfo, JERR_INPUT_EMPTY); - - /* The source object is made permanent so that a series of JPEG images - * can be read from the same buffer by calling jpeg_mem_src only before - * the first one. - */ - if (cinfo->src == NULL) { /* first time for this JPEG object? */ - cinfo->src = (struct jpeg_source_mgr *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(struct jpeg_source_mgr)); - } - - src = cinfo->src; - src->init_source = init_mem_source; - src->fill_input_buffer = fill_mem_input_buffer; - src->skip_input_data = skip_input_data; - src->resync_to_restart = jpeg_resync_to_restart; /* use default method */ - src->term_source = term_source; - src->bytes_in_buffer = (size_t) insize; - src->next_input_byte = (JOCTET *) inbuffer; -} diff --git a/jpeg/jdcoefct.c b/jpeg/jdcoefct.c deleted file mode 100755 index ed02fc3..0000000 --- a/jpeg/jdcoefct.c +++ /dev/null @@ -1,741 +0,0 @@ -/* - * jdcoefct.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the coefficient buffer controller for decompression. - * This controller is the top level of the JPEG decompressor proper. - * The coefficient buffer lies between entropy decoding and inverse-DCT steps. - * - * In buffered-image mode, this controller is the interface between - * input-oriented processing and output-oriented processing. - * Also, the input side (only) is used when reading a file for transcoding. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -/* Block smoothing is only applicable for progressive JPEG, so: */ -#ifndef D_PROGRESSIVE_SUPPORTED -#undef BLOCK_SMOOTHING_SUPPORTED -#endif - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_coef_controller pub; /* public fields */ - - /* These variables keep track of the current location of the input side. */ - /* cinfo->input_iMCU_row is also used for this. */ - JDIMENSION MCU_ctr; /* counts MCUs processed in current row */ - int MCU_vert_offset; /* counts MCU rows within iMCU row */ - int MCU_rows_per_iMCU_row; /* number of such rows needed */ - - /* The output side's location is represented by cinfo->output_iMCU_row. */ - - /* In single-pass modes, it's sufficient to buffer just one MCU. - * We allocate a workspace of D_MAX_BLOCKS_IN_MCU coefficient blocks, - * and let the entropy decoder write into that workspace each time. - * (On 80x86, the workspace is FAR even though it's not really very big; - * this is to keep the module interfaces unchanged when a large coefficient - * buffer is necessary.) - * In multi-pass modes, this array points to the current MCU's blocks - * within the virtual arrays; it is used only by the input side. - */ - JBLOCKROW MCU_buffer[D_MAX_BLOCKS_IN_MCU]; - -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* In multi-pass modes, we need a virtual block array for each component. */ - jvirt_barray_ptr whole_image[MAX_COMPONENTS]; -#endif - -#ifdef BLOCK_SMOOTHING_SUPPORTED - /* When doing block smoothing, we latch coefficient Al values here */ - int * coef_bits_latch; -#define SAVED_COEFS 6 /* we save coef_bits[0..5] */ -#endif -} my_coef_controller; - -typedef my_coef_controller * my_coef_ptr; - -/* Forward declarations */ -METHODDEF(int) decompress_onepass - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#ifdef D_MULTISCAN_FILES_SUPPORTED -METHODDEF(int) decompress_data - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#endif -#ifdef BLOCK_SMOOTHING_SUPPORTED -LOCAL(boolean) smoothing_ok JPP((j_decompress_ptr cinfo)); -METHODDEF(int) decompress_smooth_data - JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf)); -#endif - - -LOCAL(void) -start_iMCU_row (j_decompress_ptr cinfo) -/* Reset within-iMCU-row counters for a new row (input side) */ -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* In an interleaved scan, an MCU row is the same as an iMCU row. - * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows. - * But at the bottom of the image, process only what's left. - */ - if (cinfo->comps_in_scan > 1) { - coef->MCU_rows_per_iMCU_row = 1; - } else { - if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1)) - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor; - else - coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height; - } - - coef->MCU_ctr = 0; - coef->MCU_vert_offset = 0; -} - - -/* - * Initialize for an input processing pass. - */ - -METHODDEF(void) -start_input_pass (j_decompress_ptr cinfo) -{ - cinfo->input_iMCU_row = 0; - start_iMCU_row(cinfo); -} - - -/* - * Initialize for an output processing pass. - */ - -METHODDEF(void) -start_output_pass (j_decompress_ptr cinfo) -{ -#ifdef BLOCK_SMOOTHING_SUPPORTED - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - - /* If multipass, check to see whether to use block smoothing on this pass */ - if (coef->pub.coef_arrays != NULL) { - if (cinfo->do_block_smoothing && smoothing_ok(cinfo)) - coef->pub.decompress_data = decompress_smooth_data; - else - coef->pub.decompress_data = decompress_data; - } -#endif - cinfo->output_iMCU_row = 0; -} - - -/* - * Decompress and return some data in the single-pass case. - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - * Input and output must run in lockstep since we have only a one-MCU buffer. - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - * - * NB: output_buf contains a plane for each component in image, - * which we index according to the component's SOF position. - */ - -METHODDEF(int) -decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - int blkn, ci, xindex, yindex, yoffset, useful_width; - JSAMPARRAY output_ptr; - JDIMENSION start_col, output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - - /* Loop to process as much as one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col; - MCU_col_num++) { - /* Try to fetch an MCU. Entropy decoder expects buffer to be zeroed. */ - if (cinfo->lim_Se) /* can bypass in DC only case */ - FMEMZERO((void FAR *) coef->MCU_buffer[0], - (size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK))); - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->MCU_ctr = MCU_col_num; - return JPEG_SUSPENDED; - } - /* Determine where data should go in output_buf and do the IDCT thing. - * We skip dummy blocks at the right and bottom edges (but blkn gets - * incremented past them!). Note the inner loop relies on having - * allocated the MCU_buffer[] blocks sequentially. - */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) { - blkn += compptr->MCU_blocks; - continue; - } - inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index]; - useful_width = (MCU_col_num < last_MCU_col) ? compptr->MCU_width - : compptr->last_col_width; - output_ptr = output_buf[compptr->component_index] + - yoffset * compptr->DCT_v_scaled_size; - start_col = MCU_col_num * compptr->MCU_sample_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - if (cinfo->input_iMCU_row < last_iMCU_row || - yoffset+yindex < compptr->last_row_height) { - output_col = start_col; - for (xindex = 0; xindex < useful_width; xindex++) { - (*inverse_DCT) (cinfo, compptr, - (JCOEFPTR) coef->MCU_buffer[blkn+xindex], - output_ptr, output_col); - output_col += compptr->DCT_h_scaled_size; - } - } - blkn += compptr->MCU_width; - output_ptr += compptr->DCT_v_scaled_size; - } - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->MCU_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - cinfo->output_iMCU_row++; - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - start_iMCU_row(cinfo); - return JPEG_ROW_COMPLETED; - } - /* Completed the scan */ - (*cinfo->inputctl->finish_input_pass) (cinfo); - return JPEG_SCAN_COMPLETED; -} - - -/* - * Dummy consume-input routine for single-pass operation. - */ - -METHODDEF(int) -dummy_consume_data (j_decompress_ptr cinfo) -{ - return JPEG_SUSPENDED; /* Always indicate nothing was done */ -} - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Consume input data and store it in the full-image coefficient buffer. - * We read as much as one fully interleaved MCU row ("iMCU" row) per call, - * ie, v_samp_factor block rows for each component in the scan. - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - */ - -METHODDEF(int) -consume_data (j_decompress_ptr cinfo) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION MCU_col_num; /* index of current MCU within row */ - int blkn, ci, xindex, yindex, yoffset; - JDIMENSION start_col; - JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN]; - JBLOCKROW buffer_ptr; - jpeg_component_info *compptr; - - /* Align the virtual buffers for the components used in this scan. */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - buffer[ci] = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index], - cinfo->input_iMCU_row * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, TRUE); - /* Note: entropy decoder expects buffer to be zeroed, - * but this is handled automatically by the memory manager - * because we requested a pre-zeroed array. - */ - } - - /* Loop to process one whole iMCU row */ - for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row; - yoffset++) { - for (MCU_col_num = coef->MCU_ctr; MCU_col_num < cinfo->MCUs_per_row; - MCU_col_num++) { - /* Construct list of pointers to DCT blocks belonging to this MCU */ - blkn = 0; /* index of current DCT block within MCU */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - start_col = MCU_col_num * compptr->MCU_width; - for (yindex = 0; yindex < compptr->MCU_height; yindex++) { - buffer_ptr = buffer[ci][yindex+yoffset] + start_col; - for (xindex = 0; xindex < compptr->MCU_width; xindex++) { - coef->MCU_buffer[blkn++] = buffer_ptr++; - } - } - } - /* Try to fetch the MCU. */ - if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) { - /* Suspension forced; update state counters and exit */ - coef->MCU_vert_offset = yoffset; - coef->MCU_ctr = MCU_col_num; - return JPEG_SUSPENDED; - } - } - /* Completed an MCU row, but perhaps not an iMCU row */ - coef->MCU_ctr = 0; - } - /* Completed the iMCU row, advance counters for next one */ - if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) { - start_iMCU_row(cinfo); - return JPEG_ROW_COMPLETED; - } - /* Completed the scan */ - (*cinfo->inputctl->finish_input_pass) (cinfo); - return JPEG_SCAN_COMPLETED; -} - - -/* - * Decompress and return some data in the multi-pass case. - * Always attempts to emit one fully interleaved MCU row ("iMCU" row). - * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED. - * - * NB: output_buf contains a plane for each component in image. - */ - -METHODDEF(int) -decompress_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION block_num; - int ci, block_row, block_rows; - JBLOCKARRAY buffer; - JBLOCKROW buffer_ptr; - JSAMPARRAY output_ptr; - JDIMENSION output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - - /* Force some input to be done if we are getting ahead of the input. */ - while (cinfo->input_scan_number < cinfo->output_scan_number || - (cinfo->input_scan_number == cinfo->output_scan_number && - cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) { - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - return JPEG_SUSPENDED; - } - - /* OK, output from the virtual arrays. */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) - continue; - /* Align the virtual buffer for this component. */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - cinfo->output_iMCU_row * compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - /* Count non-dummy DCT block rows in this iMCU row. */ - if (cinfo->output_iMCU_row < last_iMCU_row) - block_rows = compptr->v_samp_factor; - else { - /* NB: can't use last_row_height here; it is input-side-dependent! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - } - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - output_ptr = output_buf[ci]; - /* Loop over all DCT blocks to be processed. */ - for (block_row = 0; block_row < block_rows; block_row++) { - buffer_ptr = buffer[block_row]; - output_col = 0; - for (block_num = 0; block_num < compptr->width_in_blocks; block_num++) { - (*inverse_DCT) (cinfo, compptr, (JCOEFPTR) buffer_ptr, - output_ptr, output_col); - buffer_ptr++; - output_col += compptr->DCT_h_scaled_size; - } - output_ptr += compptr->DCT_v_scaled_size; - } - } - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - return JPEG_ROW_COMPLETED; - return JPEG_SCAN_COMPLETED; -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - -#ifdef BLOCK_SMOOTHING_SUPPORTED - -/* - * This code applies interblock smoothing as described by section K.8 - * of the JPEG standard: the first 5 AC coefficients are estimated from - * the DC values of a DCT block and its 8 neighboring blocks. - * We apply smoothing only for progressive JPEG decoding, and only if - * the coefficients it can estimate are not yet known to full precision. - */ - -/* Natural-order array positions of the first 5 zigzag-order coefficients */ -#define Q01_POS 1 -#define Q10_POS 8 -#define Q20_POS 16 -#define Q11_POS 9 -#define Q02_POS 2 - -/* - * Determine whether block smoothing is applicable and safe. - * We also latch the current states of the coef_bits[] entries for the - * AC coefficients; otherwise, if the input side of the decompressor - * advances into a new scan, we might think the coefficients are known - * more accurately than they really are. - */ - -LOCAL(boolean) -smoothing_ok (j_decompress_ptr cinfo) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - boolean smoothing_useful = FALSE; - int ci, coefi; - jpeg_component_info *compptr; - JQUANT_TBL * qtable; - int * coef_bits; - int * coef_bits_latch; - - if (! cinfo->progressive_mode || cinfo->coef_bits == NULL) - return FALSE; - - /* Allocate latch area if not already done */ - if (coef->coef_bits_latch == NULL) - coef->coef_bits_latch = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * - (SAVED_COEFS * SIZEOF(int))); - coef_bits_latch = coef->coef_bits_latch; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* All components' quantization values must already be latched. */ - if ((qtable = compptr->quant_table) == NULL) - return FALSE; - /* Verify DC & first 5 AC quantizers are nonzero to avoid zero-divide. */ - if (qtable->quantval[0] == 0 || - qtable->quantval[Q01_POS] == 0 || - qtable->quantval[Q10_POS] == 0 || - qtable->quantval[Q20_POS] == 0 || - qtable->quantval[Q11_POS] == 0 || - qtable->quantval[Q02_POS] == 0) - return FALSE; - /* DC values must be at least partly known for all components. */ - coef_bits = cinfo->coef_bits[ci]; - if (coef_bits[0] < 0) - return FALSE; - /* Block smoothing is helpful if some AC coefficients remain inaccurate. */ - for (coefi = 1; coefi <= 5; coefi++) { - coef_bits_latch[coefi] = coef_bits[coefi]; - if (coef_bits[coefi] != 0) - smoothing_useful = TRUE; - } - coef_bits_latch += SAVED_COEFS; - } - - return smoothing_useful; -} - - -/* - * Variant of decompress_data for use when doing block smoothing. - */ - -METHODDEF(int) -decompress_smooth_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf) -{ - my_coef_ptr coef = (my_coef_ptr) cinfo->coef; - JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1; - JDIMENSION block_num, last_block_column; - int ci, block_row, block_rows, access_rows; - JBLOCKARRAY buffer; - JBLOCKROW buffer_ptr, prev_block_row, next_block_row; - JSAMPARRAY output_ptr; - JDIMENSION output_col; - jpeg_component_info *compptr; - inverse_DCT_method_ptr inverse_DCT; - boolean first_row, last_row; - JBLOCK workspace; - int *coef_bits; - JQUANT_TBL *quanttbl; - INT32 Q00,Q01,Q02,Q10,Q11,Q20, num; - int DC1,DC2,DC3,DC4,DC5,DC6,DC7,DC8,DC9; - int Al, pred; - - /* Force some input to be done if we are getting ahead of the input. */ - while (cinfo->input_scan_number <= cinfo->output_scan_number && - ! cinfo->inputctl->eoi_reached) { - if (cinfo->input_scan_number == cinfo->output_scan_number) { - /* If input is working on current scan, we ordinarily want it to - * have completed the current row. But if input scan is DC, - * we want it to keep one row ahead so that next block row's DC - * values are up to date. - */ - JDIMENSION delta = (cinfo->Ss == 0) ? 1 : 0; - if (cinfo->input_iMCU_row > cinfo->output_iMCU_row+delta) - break; - } - if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED) - return JPEG_SUSPENDED; - } - - /* OK, output from the virtual arrays. */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Don't bother to IDCT an uninteresting component. */ - if (! compptr->component_needed) - continue; - /* Count non-dummy DCT block rows in this iMCU row. */ - if (cinfo->output_iMCU_row < last_iMCU_row) { - block_rows = compptr->v_samp_factor; - access_rows = block_rows * 2; /* this and next iMCU row */ - last_row = FALSE; - } else { - /* NB: can't use last_row_height here; it is input-side-dependent! */ - block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (block_rows == 0) block_rows = compptr->v_samp_factor; - access_rows = block_rows; /* this iMCU row only */ - last_row = TRUE; - } - /* Align the virtual buffer for this component. */ - if (cinfo->output_iMCU_row > 0) { - access_rows += compptr->v_samp_factor; /* prior iMCU row too */ - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - (cinfo->output_iMCU_row - 1) * compptr->v_samp_factor, - (JDIMENSION) access_rows, FALSE); - buffer += compptr->v_samp_factor; /* point to current iMCU row */ - first_row = FALSE; - } else { - buffer = (*cinfo->mem->access_virt_barray) - ((j_common_ptr) cinfo, coef->whole_image[ci], - (JDIMENSION) 0, (JDIMENSION) access_rows, FALSE); - first_row = TRUE; - } - /* Fetch component-dependent info */ - coef_bits = coef->coef_bits_latch + (ci * SAVED_COEFS); - quanttbl = compptr->quant_table; - Q00 = quanttbl->quantval[0]; - Q01 = quanttbl->quantval[Q01_POS]; - Q10 = quanttbl->quantval[Q10_POS]; - Q20 = quanttbl->quantval[Q20_POS]; - Q11 = quanttbl->quantval[Q11_POS]; - Q02 = quanttbl->quantval[Q02_POS]; - inverse_DCT = cinfo->idct->inverse_DCT[ci]; - output_ptr = output_buf[ci]; - /* Loop over all DCT blocks to be processed. */ - for (block_row = 0; block_row < block_rows; block_row++) { - buffer_ptr = buffer[block_row]; - if (first_row && block_row == 0) - prev_block_row = buffer_ptr; - else - prev_block_row = buffer[block_row-1]; - if (last_row && block_row == block_rows-1) - next_block_row = buffer_ptr; - else - next_block_row = buffer[block_row+1]; - /* We fetch the surrounding DC values using a sliding-register approach. - * Initialize all nine here so as to do the right thing on narrow pics. - */ - DC1 = DC2 = DC3 = (int) prev_block_row[0][0]; - DC4 = DC5 = DC6 = (int) buffer_ptr[0][0]; - DC7 = DC8 = DC9 = (int) next_block_row[0][0]; - output_col = 0; - last_block_column = compptr->width_in_blocks - 1; - for (block_num = 0; block_num <= last_block_column; block_num++) { - /* Fetch current DCT block into workspace so we can modify it. */ - jcopy_block_row(buffer_ptr, (JBLOCKROW) workspace, (JDIMENSION) 1); - /* Update DC values */ - if (block_num < last_block_column) { - DC3 = (int) prev_block_row[1][0]; - DC6 = (int) buffer_ptr[1][0]; - DC9 = (int) next_block_row[1][0]; - } - /* Compute coefficient estimates per K.8. - * An estimate is applied only if coefficient is still zero, - * and is not known to be fully accurate. - */ - /* AC01 */ - if ((Al=coef_bits[1]) != 0 && workspace[1] == 0) { - num = 36 * Q00 * (DC4 - DC6); - if (num >= 0) { - pred = (int) (((Q01<<7) + num) / (Q01<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q10<<7) + num) / (Q10<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q20<<7) + num) / (Q20<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q11<<7) + num) / (Q11<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<= 0) { - pred = (int) (((Q02<<7) + num) / (Q02<<8)); - if (Al > 0 && pred >= (1< 0 && pred >= (1<DCT_h_scaled_size; - } - output_ptr += compptr->DCT_v_scaled_size; - } - } - - if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows) - return JPEG_ROW_COMPLETED; - return JPEG_SCAN_COMPLETED; -} - -#endif /* BLOCK_SMOOTHING_SUPPORTED */ - - -/* - * Initialize coefficient buffer controller. - */ - -GLOBAL(void) -jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_coef_ptr coef; - - coef = (my_coef_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_coef_controller)); - cinfo->coef = (struct jpeg_d_coef_controller *) coef; - coef->pub.start_input_pass = start_input_pass; - coef->pub.start_output_pass = start_output_pass; -#ifdef BLOCK_SMOOTHING_SUPPORTED - coef->coef_bits_latch = NULL; -#endif - - /* Create the coefficient buffer. */ - if (need_full_buffer) { -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* Allocate a full-image virtual array for each component, */ - /* padded to a multiple of samp_factor DCT blocks in each direction. */ - /* Note we ask for a pre-zeroed array. */ - int ci, access_rows; - jpeg_component_info *compptr; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - access_rows = compptr->v_samp_factor; -#ifdef BLOCK_SMOOTHING_SUPPORTED - /* If block smoothing could be used, need a bigger window */ - if (cinfo->progressive_mode) - access_rows *= 3; -#endif - coef->whole_image[ci] = (*cinfo->mem->request_virt_barray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, TRUE, - (JDIMENSION) jround_up((long) compptr->width_in_blocks, - (long) compptr->h_samp_factor), - (JDIMENSION) jround_up((long) compptr->height_in_blocks, - (long) compptr->v_samp_factor), - (JDIMENSION) access_rows); - } - coef->pub.consume_data = consume_data; - coef->pub.decompress_data = decompress_data; - coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */ -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - /* We only need a single-MCU buffer. */ - JBLOCKROW buffer; - int i; - - buffer = (JBLOCKROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK)); - for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) { - coef->MCU_buffer[i] = buffer + i; - } - if (cinfo->lim_Se == 0) /* DC only case: want to bypass later */ - FMEMZERO((void FAR *) buffer, - (size_t) (D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK))); - coef->pub.consume_data = dummy_consume_data; - coef->pub.decompress_data = decompress_onepass; - coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */ - } -} diff --git a/jpeg/jdcolor.c b/jpeg/jdcolor.c deleted file mode 100755 index 83e4d06..0000000 --- a/jpeg/jdcolor.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * jdcolor.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains output colorspace conversion routines. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private subobject */ - -typedef struct { - struct jpeg_color_deconverter pub; /* public fields */ - - /* Private state for YCC->RGB conversion */ - int * Cr_r_tab; /* => table for Cr to R conversion */ - int * Cb_b_tab; /* => table for Cb to B conversion */ - INT32 * Cr_g_tab; /* => table for Cr to G conversion */ - INT32 * Cb_g_tab; /* => table for Cb to G conversion */ - - /* Private state for RGB->Y conversion */ - INT32 * rgb_y_tab; /* => table for RGB to Y conversion */ -} my_color_deconverter; - -typedef my_color_deconverter * my_cconvert_ptr; - - -/**************** YCbCr -> RGB conversion: most common case **************/ -/**************** RGB -> Y conversion: less common case **************/ - -/* - * YCbCr is defined per CCIR 601-1, except that Cb and Cr are - * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5. - * The conversion equations to be implemented are therefore - * - * R = Y + 1.40200 * Cr - * G = Y - 0.34414 * Cb - 0.71414 * Cr - * B = Y + 1.77200 * Cb - * - * Y = 0.29900 * R + 0.58700 * G + 0.11400 * B - * - * where Cb and Cr represent the incoming values less CENTERJSAMPLE. - * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.) - * - * To avoid floating-point arithmetic, we represent the fractional constants - * as integers scaled up by 2^16 (about 4 digits precision); we have to divide - * the products by 2^16, with appropriate rounding, to get the correct answer. - * Notice that Y, being an integral input, does not contribute any fraction - * so it need not participate in the rounding. - * - * For even more speed, we avoid doing any multiplications in the inner loop - * by precalculating the constants times Cb and Cr for all possible values. - * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table); - * for 12-bit samples it is still acceptable. It's not very reasonable for - * 16-bit samples, but if you want lossless storage you shouldn't be changing - * colorspace anyway. - * The Cr=>R and Cb=>B values can be rounded to integers in advance; the - * values for the G calculation are left scaled up, since we must add them - * together before rounding. - */ - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L<Y conversion and divide it up into - * three parts, instead of doing three alloc_small requests. This lets us - * use a single table base address, which can be held in a register in the - * inner loops on many machines (more than can hold all three addresses, - * anyway). - */ - -#define R_Y_OFF 0 /* offset to R => Y section */ -#define G_Y_OFF (1*(MAXJSAMPLE+1)) /* offset to G => Y section */ -#define B_Y_OFF (2*(MAXJSAMPLE+1)) /* etc. */ -#define TABLE_SIZE (3*(MAXJSAMPLE+1)) - - -/* - * Initialize tables for YCC->RGB colorspace conversion. - */ - -LOCAL(void) -build_ycc_rgb_table (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - int i; - INT32 x; - SHIFT_TEMPS - - cconvert->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - cconvert->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - cconvert->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - cconvert->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { - /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ - /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ - /* Cr=>R value is nearest int to 1.40200 * x */ - cconvert->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); - /* Cb=>B value is nearest int to 1.77200 * x */ - cconvert->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); - /* Cr=>G value is scaled-up -0.71414 * x */ - cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x; - /* Cb=>G value is scaled-up -0.34414 * x */ - /* We also add in ONE_HALF so that need not do it in inner loop */ - cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; - } -} - - -/* - * Convert some rows of samples to the output colorspace. - * - * Note that we change from noninterleaved, one-plane-per-component format - * to interleaved-pixel format. The output buffer is therefore three times - * as wide as the input buffer. - * A starting row offset is provided only for the input buffer. The caller - * can easily adjust the passed output_buf value to accommodate any row - * offset required on that side. - */ - -METHODDEF(void) -ycc_rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int y, cb, cr; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - register int * Crrtab = cconvert->Cr_r_tab; - register int * Cbbtab = cconvert->Cb_b_tab; - register INT32 * Crgtab = cconvert->Cr_g_tab; - register INT32 * Cbgtab = cconvert->Cb_g_tab; - SHIFT_TEMPS - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - y = GETJSAMPLE(inptr0[col]); - cb = GETJSAMPLE(inptr1[col]); - cr = GETJSAMPLE(inptr2[col]); - /* Range-limiting is essential due to noise introduced by DCT losses. */ - outptr[RGB_RED] = range_limit[y + Crrtab[cr]]; - outptr[RGB_GREEN] = range_limit[y + - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - SCALEBITS))]; - outptr[RGB_BLUE] = range_limit[y + Cbbtab[cb]]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/**************** Cases other than YCbCr -> RGB **************/ - - -/* - * Initialize for RGB->grayscale colorspace conversion. - */ - -LOCAL(void) -build_rgb_y_table (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - INT32 * rgb_y_tab; - INT32 i; - - /* Allocate and fill in the conversion tables. */ - cconvert->rgb_y_tab = rgb_y_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (TABLE_SIZE * SIZEOF(INT32))); - - for (i = 0; i <= MAXJSAMPLE; i++) { - rgb_y_tab[i+R_Y_OFF] = FIX(0.29900) * i; - rgb_y_tab[i+G_Y_OFF] = FIX(0.58700) * i; - rgb_y_tab[i+B_Y_OFF] = FIX(0.11400) * i + ONE_HALF; - } -} - - -/* - * Convert RGB to grayscale. - */ - -METHODDEF(void) -rgb_gray_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int r, g, b; - register INT32 * ctab = cconvert->rgb_y_tab; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - r = GETJSAMPLE(inptr0[col]); - g = GETJSAMPLE(inptr1[col]); - b = GETJSAMPLE(inptr2[col]); - /* Y */ - outptr[col] = (JSAMPLE) - ((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF]) - >> SCALEBITS); - } - } -} - - -/* - * No colorspace change, but conversion from separate-planes - * to interleaved representation. - */ - -METHODDEF(void) -rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr[RGB_RED] = inptr0[col]; - outptr[RGB_GREEN] = inptr1[col]; - outptr[RGB_BLUE] = inptr2[col]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Color conversion for no colorspace change: just copy the data, - * converting from separate-planes to interleaved representation. - */ - -METHODDEF(void) -null_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW inptr, outptr; - register JDIMENSION count; - register int num_components = cinfo->num_components; - JDIMENSION num_cols = cinfo->output_width; - int ci; - - while (--num_rows >= 0) { - for (ci = 0; ci < num_components; ci++) { - inptr = input_buf[ci][input_row]; - outptr = output_buf[0] + ci; - for (count = num_cols; count > 0; count--) { - *outptr = *inptr++; /* needn't bother with GETJSAMPLE() here */ - outptr += num_components; - } - } - input_row++; - output_buf++; - } -} - - -/* - * Color conversion for grayscale: just copy the data. - * This also works for YCbCr -> grayscale conversion, in which - * we just copy the Y (luminance) component and ignore chrominance. - */ - -METHODDEF(void) -grayscale_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - jcopy_sample_rows(input_buf[0], (int) input_row, output_buf, 0, - num_rows, cinfo->output_width); -} - - -/* - * Convert grayscale to RGB: just duplicate the graylevel three times. - * This is provided to support applications that don't want to cope - * with grayscale as a separate case. - */ - -METHODDEF(void) -gray_rgb_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - register JSAMPROW inptr, outptr; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - - while (--num_rows >= 0) { - inptr = input_buf[0][input_row++]; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - /* We can dispense with GETJSAMPLE() here */ - outptr[RGB_RED] = outptr[RGB_GREEN] = outptr[RGB_BLUE] = inptr[col]; - outptr += RGB_PIXELSIZE; - } - } -} - - -/* - * Adobe-style YCCK->CMYK conversion. - * We convert YCbCr to R=1-C, G=1-M, and B=1-Y using the same - * conversion as above, while passing K (black) unchanged. - * We assume build_ycc_rgb_table has been called. - */ - -METHODDEF(void) -ycck_cmyk_convert (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows) -{ - my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert; - register int y, cb, cr; - register JSAMPROW outptr; - register JSAMPROW inptr0, inptr1, inptr2, inptr3; - register JDIMENSION col; - JDIMENSION num_cols = cinfo->output_width; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - register int * Crrtab = cconvert->Cr_r_tab; - register int * Cbbtab = cconvert->Cb_b_tab; - register INT32 * Crgtab = cconvert->Cr_g_tab; - register INT32 * Cbgtab = cconvert->Cb_g_tab; - SHIFT_TEMPS - - while (--num_rows >= 0) { - inptr0 = input_buf[0][input_row]; - inptr1 = input_buf[1][input_row]; - inptr2 = input_buf[2][input_row]; - inptr3 = input_buf[3][input_row]; - input_row++; - outptr = *output_buf++; - for (col = 0; col < num_cols; col++) { - y = GETJSAMPLE(inptr0[col]); - cb = GETJSAMPLE(inptr1[col]); - cr = GETJSAMPLE(inptr2[col]); - /* Range-limiting is essential due to noise introduced by DCT losses. */ - outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])]; /* red */ - outptr[1] = range_limit[MAXJSAMPLE - (y + /* green */ - ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], - SCALEBITS)))]; - outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])]; /* blue */ - /* K passes through unchanged */ - outptr[3] = inptr3[col]; /* don't need GETJSAMPLE here */ - outptr += 4; - } - } -} - - -/* - * Empty method for start_pass. - */ - -METHODDEF(void) -start_pass_dcolor (j_decompress_ptr cinfo) -{ - /* no work needed */ -} - - -/* - * Module initialization routine for output colorspace conversion. - */ - -GLOBAL(void) -jinit_color_deconverter (j_decompress_ptr cinfo) -{ - my_cconvert_ptr cconvert; - int ci; - - cconvert = (my_cconvert_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_color_deconverter)); - cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert; - cconvert->pub.start_pass = start_pass_dcolor; - - /* Make sure num_components agrees with jpeg_color_space */ - switch (cinfo->jpeg_color_space) { - case JCS_GRAYSCALE: - if (cinfo->num_components != 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - case JCS_RGB: - case JCS_YCbCr: - if (cinfo->num_components != 3) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - case JCS_CMYK: - case JCS_YCCK: - if (cinfo->num_components != 4) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - - default: /* JCS_UNKNOWN can be anything */ - if (cinfo->num_components < 1) - ERREXIT(cinfo, JERR_BAD_J_COLORSPACE); - break; - } - - /* Set out_color_components and conversion method based on requested space. - * Also clear the component_needed flags for any unused components, - * so that earlier pipeline stages can avoid useless computation. - */ - - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - cinfo->out_color_components = 1; - if (cinfo->jpeg_color_space == JCS_GRAYSCALE || - cinfo->jpeg_color_space == JCS_YCbCr) { - cconvert->pub.color_convert = grayscale_convert; - /* For color->grayscale conversion, only the Y (0) component is needed */ - for (ci = 1; ci < cinfo->num_components; ci++) - cinfo->comp_info[ci].component_needed = FALSE; - } else if (cinfo->jpeg_color_space == JCS_RGB) { - cconvert->pub.color_convert = rgb_gray_convert; - build_rgb_y_table(cinfo); - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_RGB: - cinfo->out_color_components = RGB_PIXELSIZE; - if (cinfo->jpeg_color_space == JCS_YCbCr) { - cconvert->pub.color_convert = ycc_rgb_convert; - build_ycc_rgb_table(cinfo); - } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) { - cconvert->pub.color_convert = gray_rgb_convert; - } else if (cinfo->jpeg_color_space == JCS_RGB) { - cconvert->pub.color_convert = rgb_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - case JCS_CMYK: - cinfo->out_color_components = 4; - if (cinfo->jpeg_color_space == JCS_YCCK) { - cconvert->pub.color_convert = ycck_cmyk_convert; - build_ycc_rgb_table(cinfo); - } else if (cinfo->jpeg_color_space == JCS_CMYK) { - cconvert->pub.color_convert = null_convert; - } else - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - - default: - /* Permit null conversion to same output space */ - if (cinfo->out_color_space == cinfo->jpeg_color_space) { - cinfo->out_color_components = cinfo->num_components; - cconvert->pub.color_convert = null_convert; - } else /* unsupported non-null conversion */ - ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL); - break; - } - - if (cinfo->quantize_colors) - cinfo->output_components = 1; /* single colormapped output component */ - else - cinfo->output_components = cinfo->out_color_components; -} diff --git a/jpeg/jdct.h b/jpeg/jdct.h deleted file mode 100755 index 360dec8..0000000 --- a/jpeg/jdct.h +++ /dev/null @@ -1,393 +0,0 @@ -/* - * jdct.h - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This include file contains common declarations for the forward and - * inverse DCT modules. These declarations are private to the DCT managers - * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms. - * The individual DCT algorithms are kept in separate files to ease - * machine-dependent tuning (e.g., assembly coding). - */ - - -/* - * A forward DCT routine is given a pointer to an input sample array and - * a pointer to a work area of type DCTELEM[]; the DCT is to be performed - * in-place in that buffer. Type DCTELEM is int for 8-bit samples, INT32 - * for 12-bit samples. (NOTE: Floating-point DCT implementations use an - * array of type FAST_FLOAT, instead.) - * The input data is to be fetched from the sample array starting at a - * specified column. (Any row offset needed will be applied to the array - * pointer before it is passed to the FDCT code.) - * Note that the number of samples fetched by the FDCT routine is - * DCT_h_scaled_size * DCT_v_scaled_size. - * The DCT outputs are returned scaled up by a factor of 8; they therefore - * have a range of +-8K for 8-bit data, +-128K for 12-bit data. This - * convention improves accuracy in integer implementations and saves some - * work in floating-point ones. - * Quantization of the output coefficients is done by jcdctmgr.c. - */ - -#if BITS_IN_JSAMPLE == 8 -typedef int DCTELEM; /* 16 or 32 bits is fine */ -#else -typedef INT32 DCTELEM; /* must have 32 bits */ -#endif - -typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data, - JSAMPARRAY sample_data, - JDIMENSION start_col)); -typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data, - JSAMPARRAY sample_data, - JDIMENSION start_col)); - - -/* - * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer - * to an output sample array. The routine must dequantize the input data as - * well as perform the IDCT; for dequantization, it uses the multiplier table - * pointed to by compptr->dct_table. The output data is to be placed into the - * sample array starting at a specified column. (Any row offset needed will - * be applied to the array pointer before it is passed to the IDCT code.) - * Note that the number of samples emitted by the IDCT routine is - * DCT_h_scaled_size * DCT_v_scaled_size. - */ - -/* typedef inverse_DCT_method_ptr is declared in jpegint.h */ - -/* - * Each IDCT routine has its own ideas about the best dct_table element type. - */ - -typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */ -#if BITS_IN_JSAMPLE == 8 -typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */ -#define IFAST_SCALE_BITS 2 /* fractional bits in scale factors */ -#else -typedef INT32 IFAST_MULT_TYPE; /* need 32 bits for scaled quantizers */ -#define IFAST_SCALE_BITS 13 /* fractional bits in scale factors */ -#endif -typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */ - - -/* - * Each IDCT routine is responsible for range-limiting its results and - * converting them to unsigned form (0..MAXJSAMPLE). The raw outputs could - * be quite far out of range if the input data is corrupt, so a bulletproof - * range-limiting step is required. We use a mask-and-table-lookup method - * to do the combined operations quickly. See the comments with - * prepare_range_limit_table (in jdmaster.c) for more info. - */ - -#define IDCT_range_limit(cinfo) ((cinfo)->sample_range_limit + CENTERJSAMPLE) - -#define RANGE_MASK (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_fdct_islow jFDislow -#define jpeg_fdct_ifast jFDifast -#define jpeg_fdct_float jFDfloat -#define jpeg_fdct_7x7 jFD7x7 -#define jpeg_fdct_6x6 jFD6x6 -#define jpeg_fdct_5x5 jFD5x5 -#define jpeg_fdct_4x4 jFD4x4 -#define jpeg_fdct_3x3 jFD3x3 -#define jpeg_fdct_2x2 jFD2x2 -#define jpeg_fdct_1x1 jFD1x1 -#define jpeg_fdct_9x9 jFD9x9 -#define jpeg_fdct_10x10 jFD10x10 -#define jpeg_fdct_11x11 jFD11x11 -#define jpeg_fdct_12x12 jFD12x12 -#define jpeg_fdct_13x13 jFD13x13 -#define jpeg_fdct_14x14 jFD14x14 -#define jpeg_fdct_15x15 jFD15x15 -#define jpeg_fdct_16x16 jFD16x16 -#define jpeg_fdct_16x8 jFD16x8 -#define jpeg_fdct_14x7 jFD14x7 -#define jpeg_fdct_12x6 jFD12x6 -#define jpeg_fdct_10x5 jFD10x5 -#define jpeg_fdct_8x4 jFD8x4 -#define jpeg_fdct_6x3 jFD6x3 -#define jpeg_fdct_4x2 jFD4x2 -#define jpeg_fdct_2x1 jFD2x1 -#define jpeg_fdct_8x16 jFD8x16 -#define jpeg_fdct_7x14 jFD7x14 -#define jpeg_fdct_6x12 jFD6x12 -#define jpeg_fdct_5x10 jFD5x10 -#define jpeg_fdct_4x8 jFD4x8 -#define jpeg_fdct_3x6 jFD3x6 -#define jpeg_fdct_2x4 jFD2x4 -#define jpeg_fdct_1x2 jFD1x2 -#define jpeg_idct_islow jRDislow -#define jpeg_idct_ifast jRDifast -#define jpeg_idct_float jRDfloat -#define jpeg_idct_7x7 jRD7x7 -#define jpeg_idct_6x6 jRD6x6 -#define jpeg_idct_5x5 jRD5x5 -#define jpeg_idct_4x4 jRD4x4 -#define jpeg_idct_3x3 jRD3x3 -#define jpeg_idct_2x2 jRD2x2 -#define jpeg_idct_1x1 jRD1x1 -#define jpeg_idct_9x9 jRD9x9 -#define jpeg_idct_10x10 jRD10x10 -#define jpeg_idct_11x11 jRD11x11 -#define jpeg_idct_12x12 jRD12x12 -#define jpeg_idct_13x13 jRD13x13 -#define jpeg_idct_14x14 jRD14x14 -#define jpeg_idct_15x15 jRD15x15 -#define jpeg_idct_16x16 jRD16x16 -#define jpeg_idct_16x8 jRD16x8 -#define jpeg_idct_14x7 jRD14x7 -#define jpeg_idct_12x6 jRD12x6 -#define jpeg_idct_10x5 jRD10x5 -#define jpeg_idct_8x4 jRD8x4 -#define jpeg_idct_6x3 jRD6x3 -#define jpeg_idct_4x2 jRD4x2 -#define jpeg_idct_2x1 jRD2x1 -#define jpeg_idct_8x16 jRD8x16 -#define jpeg_idct_7x14 jRD7x14 -#define jpeg_idct_6x12 jRD6x12 -#define jpeg_idct_5x10 jRD5x10 -#define jpeg_idct_4x8 jRD4x8 -#define jpeg_idct_3x6 jRD3x8 -#define jpeg_idct_2x4 jRD2x4 -#define jpeg_idct_1x2 jRD1x2 -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - -/* Extern declarations for the forward and inverse DCT routines. */ - -EXTERN(void) jpeg_fdct_islow - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_ifast - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_float - JPP((FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_7x7 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_5x5 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_3x3 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_1x1 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_9x9 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_10x10 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_11x11 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_12x12 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_13x13 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_14x14 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_15x15 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_16x16 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_16x8 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_14x7 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_12x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_10x5 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_8x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x3 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x1 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_8x16 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_7x14 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_6x12 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_5x10 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_4x8 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_3x6 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_2x4 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); -EXTERN(void) jpeg_fdct_1x2 - JPP((DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col)); - -EXTERN(void) jpeg_idct_islow - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_ifast - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_float - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_7x7 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_5x5 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_3x3 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_1x1 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_9x9 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_10x10 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_11x11 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_12x12 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_13x13 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_14x14 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_15x15 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_16x16 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_16x8 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_14x7 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_12x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_10x5 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_8x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x3 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x1 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_8x16 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_7x14 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_6x12 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_5x10 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_4x8 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_3x6 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_2x4 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); -EXTERN(void) jpeg_idct_1x2 - JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col)); - - -/* - * Macros for handling fixed-point arithmetic; these are used by many - * but not all of the DCT/IDCT modules. - * - * All values are expected to be of type INT32. - * Fractional constants are scaled left by CONST_BITS bits. - * CONST_BITS is defined within each module using these macros, - * and may differ from one module to the next. - */ - -#define ONE ((INT32) 1) -#define CONST_SCALE (ONE << CONST_BITS) - -/* Convert a positive real constant to an integer scaled by CONST_SCALE. - * Caution: some C compilers fail to reduce "FIX(constant)" at compile time, - * thus causing a lot of useless floating-point operations at run time. - */ - -#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5)) - -/* Descale and correctly round an INT32 value that's scaled by N bits. - * We assume RIGHT_SHIFT rounds towards minus infinity, so adding - * the fudge factor is correct for either sign of X. - */ - -#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n) - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * This macro is used only when the two inputs will actually be no more than - * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a - * full 32x32 multiply. This provides a useful speedup on many machines. - * Unfortunately there is no way to specify a 16x16->32 multiply portably - * in C, but some C compilers will do the right thing if you provide the - * correct combination of casts. - */ - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT16) (const))) -#endif -#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */ -#define MULTIPLY16C16(var,const) (((INT16) (var)) * ((INT32) (const))) -#endif - -#ifndef MULTIPLY16C16 /* default definition */ -#define MULTIPLY16C16(var,const) ((var) * (const)) -#endif - -/* Same except both inputs are variables. */ - -#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */ -#define MULTIPLY16V16(var1,var2) (((INT16) (var1)) * ((INT16) (var2))) -#endif - -#ifndef MULTIPLY16V16 /* default definition */ -#define MULTIPLY16V16(var1,var2) ((var1) * (var2)) -#endif diff --git a/jpeg/jddctmgr.c b/jpeg/jddctmgr.c deleted file mode 100755 index 0ded9d5..0000000 --- a/jpeg/jddctmgr.c +++ /dev/null @@ -1,384 +0,0 @@ -/* - * jddctmgr.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2002-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the inverse-DCT management logic. - * This code selects a particular IDCT implementation to be used, - * and it performs related housekeeping chores. No code in this file - * is executed per IDCT step, only during output pass setup. - * - * Note that the IDCT routines are responsible for performing coefficient - * dequantization as well as the IDCT proper. This module sets up the - * dequantization multiplier table needed by the IDCT routine. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - - -/* - * The decompressor input side (jdinput.c) saves away the appropriate - * quantization table for each component at the start of the first scan - * involving that component. (This is necessary in order to correctly - * decode files that reuse Q-table slots.) - * When we are ready to make an output pass, the saved Q-table is converted - * to a multiplier table that will actually be used by the IDCT routine. - * The multiplier table contents are IDCT-method-dependent. To support - * application changes in IDCT method between scans, we can remake the - * multiplier tables if necessary. - * In buffered-image mode, the first output pass may occur before any data - * has been seen for some components, and thus before their Q-tables have - * been saved away. To handle this case, multiplier tables are preset - * to zeroes; the result of the IDCT will be a neutral gray level. - */ - - -/* Private subobject for this module */ - -typedef struct { - struct jpeg_inverse_dct pub; /* public fields */ - - /* This array contains the IDCT method code that each multiplier table - * is currently set up for, or -1 if it's not yet set up. - * The actual multiplier tables are pointed to by dct_table in the - * per-component comp_info structures. - */ - int cur_method[MAX_COMPONENTS]; -} my_idct_controller; - -typedef my_idct_controller * my_idct_ptr; - - -/* Allocated multiplier tables: big enough for any supported variant */ - -typedef union { - ISLOW_MULT_TYPE islow_array[DCTSIZE2]; -#ifdef DCT_IFAST_SUPPORTED - IFAST_MULT_TYPE ifast_array[DCTSIZE2]; -#endif -#ifdef DCT_FLOAT_SUPPORTED - FLOAT_MULT_TYPE float_array[DCTSIZE2]; -#endif -} multiplier_table; - - -/* The current scaled-IDCT routines require ISLOW-style multiplier tables, - * so be sure to compile that code if either ISLOW or SCALING is requested. - */ -#ifdef DCT_ISLOW_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#else -#ifdef IDCT_SCALING_SUPPORTED -#define PROVIDE_ISLOW_TABLES -#endif -#endif - - -/* - * Prepare for an output pass. - * Here we select the proper IDCT routine for each component and build - * a matching multiplier table. - */ - -METHODDEF(void) -start_pass (j_decompress_ptr cinfo) -{ - my_idct_ptr idct = (my_idct_ptr) cinfo->idct; - int ci, i; - jpeg_component_info *compptr; - int method = 0; - inverse_DCT_method_ptr method_ptr = NULL; - JQUANT_TBL * qtbl; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Select the proper IDCT routine for this component's scaling */ - switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) { -#ifdef IDCT_SCALING_SUPPORTED - case ((1 << 8) + 1): - method_ptr = jpeg_idct_1x1; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 2): - method_ptr = jpeg_idct_2x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((3 << 8) + 3): - method_ptr = jpeg_idct_3x3; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 4): - method_ptr = jpeg_idct_4x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((5 << 8) + 5): - method_ptr = jpeg_idct_5x5; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 6): - method_ptr = jpeg_idct_6x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((7 << 8) + 7): - method_ptr = jpeg_idct_7x7; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((9 << 8) + 9): - method_ptr = jpeg_idct_9x9; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((10 << 8) + 10): - method_ptr = jpeg_idct_10x10; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((11 << 8) + 11): - method_ptr = jpeg_idct_11x11; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((12 << 8) + 12): - method_ptr = jpeg_idct_12x12; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((13 << 8) + 13): - method_ptr = jpeg_idct_13x13; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((14 << 8) + 14): - method_ptr = jpeg_idct_14x14; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((15 << 8) + 15): - method_ptr = jpeg_idct_15x15; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((16 << 8) + 16): - method_ptr = jpeg_idct_16x16; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((16 << 8) + 8): - method_ptr = jpeg_idct_16x8; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((14 << 8) + 7): - method_ptr = jpeg_idct_14x7; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((12 << 8) + 6): - method_ptr = jpeg_idct_12x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((10 << 8) + 5): - method_ptr = jpeg_idct_10x5; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((8 << 8) + 4): - method_ptr = jpeg_idct_8x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 3): - method_ptr = jpeg_idct_6x3; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 2): - method_ptr = jpeg_idct_4x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 1): - method_ptr = jpeg_idct_2x1; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((8 << 8) + 16): - method_ptr = jpeg_idct_8x16; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((7 << 8) + 14): - method_ptr = jpeg_idct_7x14; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((6 << 8) + 12): - method_ptr = jpeg_idct_6x12; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((5 << 8) + 10): - method_ptr = jpeg_idct_5x10; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((4 << 8) + 8): - method_ptr = jpeg_idct_4x8; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((3 << 8) + 6): - method_ptr = jpeg_idct_3x6; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((2 << 8) + 4): - method_ptr = jpeg_idct_2x4; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; - case ((1 << 8) + 2): - method_ptr = jpeg_idct_1x2; - method = JDCT_ISLOW; /* jidctint uses islow-style table */ - break; -#endif - case ((DCTSIZE << 8) + DCTSIZE): - switch (cinfo->dct_method) { -#ifdef DCT_ISLOW_SUPPORTED - case JDCT_ISLOW: - method_ptr = jpeg_idct_islow; - method = JDCT_ISLOW; - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - method_ptr = jpeg_idct_ifast; - method = JDCT_IFAST; - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - method_ptr = jpeg_idct_float; - method = JDCT_FLOAT; - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - break; - default: - ERREXIT2(cinfo, JERR_BAD_DCTSIZE, - compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size); - break; - } - idct->pub.inverse_DCT[ci] = method_ptr; - /* Create multiplier table from quant table. - * However, we can skip this if the component is uninteresting - * or if we already built the table. Also, if no quant table - * has yet been saved for the component, we leave the - * multiplier table all-zero; we'll be reading zeroes from the - * coefficient controller's buffer anyway. - */ - if (! compptr->component_needed || idct->cur_method[ci] == method) - continue; - qtbl = compptr->quant_table; - if (qtbl == NULL) /* happens if no data yet for component */ - continue; - idct->cur_method[ci] = method; - switch (method) { -#ifdef PROVIDE_ISLOW_TABLES - case JDCT_ISLOW: - { - /* For LL&M IDCT method, multipliers are equal to raw quantization - * coefficients, but are stored as ints to ensure access efficiency. - */ - ISLOW_MULT_TYPE * ismtbl = (ISLOW_MULT_TYPE *) compptr->dct_table; - for (i = 0; i < DCTSIZE2; i++) { - ismtbl[i] = (ISLOW_MULT_TYPE) qtbl->quantval[i]; - } - } - break; -#endif -#ifdef DCT_IFAST_SUPPORTED - case JDCT_IFAST: - { - /* For AA&N IDCT method, multipliers are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * For integer operation, the multiplier table is to be scaled by - * IFAST_SCALE_BITS. - */ - IFAST_MULT_TYPE * ifmtbl = (IFAST_MULT_TYPE *) compptr->dct_table; -#define CONST_BITS 14 - static const INT16 aanscales[DCTSIZE2] = { - /* precomputed values scaled up by 14 bits */ - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270, - 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906, - 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315, - 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520, - 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552, - 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446, - 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247 - }; - SHIFT_TEMPS - - for (i = 0; i < DCTSIZE2; i++) { - ifmtbl[i] = (IFAST_MULT_TYPE) - DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i], - (INT32) aanscales[i]), - CONST_BITS-IFAST_SCALE_BITS); - } - } - break; -#endif -#ifdef DCT_FLOAT_SUPPORTED - case JDCT_FLOAT: - { - /* For float AA&N IDCT method, multipliers are equal to quantization - * coefficients scaled by scalefactor[row]*scalefactor[col], where - * scalefactor[0] = 1 - * scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7 - * We apply a further scale factor of 1/8. - */ - FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table; - int row, col; - static const double aanscalefactor[DCTSIZE] = { - 1.0, 1.387039845, 1.306562965, 1.175875602, - 1.0, 0.785694958, 0.541196100, 0.275899379 - }; - - i = 0; - for (row = 0; row < DCTSIZE; row++) { - for (col = 0; col < DCTSIZE; col++) { - fmtbl[i] = (FLOAT_MULT_TYPE) - ((double) qtbl->quantval[i] * - aanscalefactor[row] * aanscalefactor[col] * 0.125); - i++; - } - } - } - break; -#endif - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } - } -} - - -/* - * Initialize IDCT manager. - */ - -GLOBAL(void) -jinit_inverse_dct (j_decompress_ptr cinfo) -{ - my_idct_ptr idct; - int ci; - jpeg_component_info *compptr; - - idct = (my_idct_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_idct_controller)); - cinfo->idct = (struct jpeg_inverse_dct *) idct; - idct->pub.start_pass = start_pass; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Allocate and pre-zero a multiplier table for each component */ - compptr->dct_table = - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(multiplier_table)); - MEMZERO(compptr->dct_table, SIZEOF(multiplier_table)); - /* Mark multiplier table not yet set up for any method */ - idct->cur_method[ci] = -1; - } -} diff --git a/jpeg/jdhuff.c b/jpeg/jdhuff.c deleted file mode 100755 index 06f92fe..0000000 --- a/jpeg/jdhuff.c +++ /dev/null @@ -1,1541 +0,0 @@ -/* - * jdhuff.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2006-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains Huffman entropy decoding routines. - * Both sequential and progressive modes are supported in this single module. - * - * Much of the complexity here has to do with supporting input suspension. - * If the data source module demands suspension, we want to be able to back - * up to the start of the current MCU. To do this, we copy state variables - * into local working storage, and update them back to the permanent - * storage only upon successful completion of an MCU. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Derived data constructed for each Huffman table */ - -#define HUFF_LOOKAHEAD 8 /* # of bits of lookahead */ - -typedef struct { - /* Basic tables: (element [0] of each array is unused) */ - INT32 maxcode[18]; /* largest code of length k (-1 if none) */ - /* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */ - INT32 valoffset[17]; /* huffval[] offset for codes of length k */ - /* valoffset[k] = huffval[] index of 1st symbol of code length k, less - * the smallest code of length k; so given a code of length k, the - * corresponding symbol is huffval[code + valoffset[k]] - */ - - /* Link to public Huffman table (needed only in jpeg_huff_decode) */ - JHUFF_TBL *pub; - - /* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of - * the input data stream. If the next Huffman code is no more - * than HUFF_LOOKAHEAD bits long, we can obtain its length and - * the corresponding symbol directly from these tables. - */ - int look_nbits[1< 32 bits on your machine, and shifting/masking longs is - * reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE - * appropriately should be a win. Unfortunately we can't define the size - * with something like #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8) - * because not all machines measure sizeof in 8-bit bytes. - */ - -typedef struct { /* Bitreading state saved across MCUs */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ -} bitread_perm_state; - -typedef struct { /* Bitreading working state within an MCU */ - /* Current data source location */ - /* We need a copy, rather than munging the original, in case of suspension */ - const JOCTET * next_input_byte; /* => next byte to read from source */ - size_t bytes_in_buffer; /* # of bytes remaining in source buffer */ - /* Bit input buffer --- note these values are kept in register variables, - * not in this struct, inside the inner loops. - */ - bit_buf_type get_buffer; /* current bit-extraction buffer */ - int bits_left; /* # of unused bits in it */ - /* Pointer needed by jpeg_fill_bit_buffer. */ - j_decompress_ptr cinfo; /* back link to decompress master record */ -} bitread_working_state; - -/* Macros to declare and load/save bitread local variables. */ -#define BITREAD_STATE_VARS \ - register bit_buf_type get_buffer; \ - register int bits_left; \ - bitread_working_state br_state - -#define BITREAD_LOAD_STATE(cinfop,permstate) \ - br_state.cinfo = cinfop; \ - br_state.next_input_byte = cinfop->src->next_input_byte; \ - br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \ - get_buffer = permstate.get_buffer; \ - bits_left = permstate.bits_left; - -#define BITREAD_SAVE_STATE(cinfop,permstate) \ - cinfop->src->next_input_byte = br_state.next_input_byte; \ - cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \ - permstate.get_buffer = get_buffer; \ - permstate.bits_left = bits_left - -/* - * These macros provide the in-line portion of bit fetching. - * Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer - * before using GET_BITS, PEEK_BITS, or DROP_BITS. - * The variables get_buffer and bits_left are assumed to be locals, - * but the state struct might not be (jpeg_huff_decode needs this). - * CHECK_BIT_BUFFER(state,n,action); - * Ensure there are N bits in get_buffer; if suspend, take action. - * val = GET_BITS(n); - * Fetch next N bits. - * val = PEEK_BITS(n); - * Fetch next N bits without removing them from the buffer. - * DROP_BITS(n); - * Discard next N bits. - * The value N should be a simple variable, not an expression, because it - * is evaluated multiple times. - */ - -#define CHECK_BIT_BUFFER(state,nbits,action) \ - { if (bits_left < (nbits)) { \ - if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \ - { action; } \ - get_buffer = (state).get_buffer; bits_left = (state).bits_left; } } - -#define GET_BITS(nbits) \ - (((int) (get_buffer >> (bits_left -= (nbits)))) & BIT_MASK(nbits)) - -#define PEEK_BITS(nbits) \ - (((int) (get_buffer >> (bits_left - (nbits)))) & BIT_MASK(nbits)) - -#define DROP_BITS(nbits) \ - (bits_left -= (nbits)) - - -/* - * Code for extracting next Huffman-coded symbol from input bit stream. - * Again, this is time-critical and we make the main paths be macros. - * - * We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits - * without looping. Usually, more than 95% of the Huffman codes will be 8 - * or fewer bits long. The few overlength codes are handled with a loop, - * which need not be inline code. - * - * Notes about the HUFF_DECODE macro: - * 1. Near the end of the data segment, we may fail to get enough bits - * for a lookahead. In that case, we do it the hard way. - * 2. If the lookahead table contains no entry, the next code must be - * more than HUFF_LOOKAHEAD bits long. - * 3. jpeg_huff_decode returns -1 if forced to suspend. - */ - -#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \ -{ register int nb, look; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - if (bits_left < HUFF_LOOKAHEAD) { \ - nb = 1; goto slowlabel; \ - } \ - } \ - look = PEEK_BITS(HUFF_LOOKAHEAD); \ - if ((nb = htbl->look_nbits[look]) != 0) { \ - DROP_BITS(nb); \ - result = htbl->look_sym[look]; \ - } else { \ - nb = HUFF_LOOKAHEAD+1; \ -slowlabel: \ - if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \ - { failaction; } \ - get_buffer = state.get_buffer; bits_left = state.bits_left; \ - } \ -} - - -/* - * Expanded entropy decoder object for Huffman decoding. - * - * The savable_state subrecord contains fields that change within an MCU, - * but must not be updated permanently until we complete the MCU. - */ - -typedef struct { - unsigned int EOBRUN; /* remaining EOBs in EOBRUN */ - int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */ -} savable_state; - -/* This macro is to work around compilers with missing or broken - * structure assignment. You'll need to fix this code if you have - * such a compiler and you change MAX_COMPS_IN_SCAN. - */ - -#ifndef NO_STRUCT_ASSIGN -#define ASSIGN_STATE(dest,src) ((dest) = (src)) -#else -#if MAX_COMPS_IN_SCAN == 4 -#define ASSIGN_STATE(dest,src) \ - ((dest).EOBRUN = (src).EOBRUN, \ - (dest).last_dc_val[0] = (src).last_dc_val[0], \ - (dest).last_dc_val[1] = (src).last_dc_val[1], \ - (dest).last_dc_val[2] = (src).last_dc_val[2], \ - (dest).last_dc_val[3] = (src).last_dc_val[3]) -#endif -#endif - - -typedef struct { - struct jpeg_entropy_decoder pub; /* public fields */ - - /* These fields are loaded into local variables at start of each MCU. - * In case of suspension, we exit WITHOUT updating them. - */ - bitread_perm_state bitstate; /* Bit buffer at start of MCU */ - savable_state saved; /* Other state at start of MCU */ - - /* These fields are NOT loaded into local working state. */ - boolean insufficient_data; /* set TRUE after emitting warning */ - unsigned int restarts_to_go; /* MCUs left in this restart interval */ - - /* Following two fields used only in progressive mode */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - d_derived_tbl * derived_tbls[NUM_HUFF_TBLS]; - - d_derived_tbl * ac_derived_tbl; /* active table during an AC scan */ - - /* Following fields used only in sequential mode */ - - /* Pointers to derived tables (these workspaces have image lifespan) */ - d_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS]; - d_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS]; - - /* Precalculated info set up by start_pass for use in decode_mcu: */ - - /* Pointers to derived tables to be used for each block within an MCU */ - d_derived_tbl * dc_cur_tbls[D_MAX_BLOCKS_IN_MCU]; - d_derived_tbl * ac_cur_tbls[D_MAX_BLOCKS_IN_MCU]; - /* Whether we care about the DC and AC coefficient values for each block */ - int coef_limit[D_MAX_BLOCKS_IN_MCU]; -} huff_entropy_decoder; - -typedef huff_entropy_decoder * huff_entropy_ptr; - - -static const int jpeg_zigzag_order[8][8] = { - { 0, 1, 5, 6, 14, 15, 27, 28 }, - { 2, 4, 7, 13, 16, 26, 29, 42 }, - { 3, 8, 12, 17, 25, 30, 41, 43 }, - { 9, 11, 18, 24, 31, 40, 44, 53 }, - { 10, 19, 23, 32, 39, 45, 52, 54 }, - { 20, 22, 33, 38, 46, 51, 55, 60 }, - { 21, 34, 37, 47, 50, 56, 59, 61 }, - { 35, 36, 48, 49, 57, 58, 62, 63 } -}; - -static const int jpeg_zigzag_order7[7][7] = { - { 0, 1, 5, 6, 14, 15, 27 }, - { 2, 4, 7, 13, 16, 26, 28 }, - { 3, 8, 12, 17, 25, 29, 38 }, - { 9, 11, 18, 24, 30, 37, 39 }, - { 10, 19, 23, 31, 36, 40, 45 }, - { 20, 22, 32, 35, 41, 44, 46 }, - { 21, 33, 34, 42, 43, 47, 48 } -}; - -static const int jpeg_zigzag_order6[6][6] = { - { 0, 1, 5, 6, 14, 15 }, - { 2, 4, 7, 13, 16, 25 }, - { 3, 8, 12, 17, 24, 26 }, - { 9, 11, 18, 23, 27, 32 }, - { 10, 19, 22, 28, 31, 33 }, - { 20, 21, 29, 30, 34, 35 } -}; - -static const int jpeg_zigzag_order5[5][5] = { - { 0, 1, 5, 6, 14 }, - { 2, 4, 7, 13, 15 }, - { 3, 8, 12, 16, 21 }, - { 9, 11, 17, 20, 22 }, - { 10, 18, 19, 23, 24 } -}; - -static const int jpeg_zigzag_order4[4][4] = { - { 0, 1, 5, 6 }, - { 2, 4, 7, 12 }, - { 3, 8, 11, 13 }, - { 9, 10, 14, 15 } -}; - -static const int jpeg_zigzag_order3[3][3] = { - { 0, 1, 5 }, - { 2, 4, 6 }, - { 3, 7, 8 } -}; - -static const int jpeg_zigzag_order2[2][2] = { - { 0, 1 }, - { 2, 3 } -}; - - -/* - * Compute the derived values for a Huffman table. - * This routine also performs some validation checks on the table. - */ - -LOCAL(void) -jpeg_make_d_derived_tbl (j_decompress_ptr cinfo, boolean isDC, int tblno, - d_derived_tbl ** pdtbl) -{ - JHUFF_TBL *htbl; - d_derived_tbl *dtbl; - int p, i, l, si, numsymbols; - int lookbits, ctr; - char huffsize[257]; - unsigned int huffcode[257]; - unsigned int code; - - /* Note that huffsize[] and huffcode[] are filled in code-length order, - * paralleling the order of the symbols themselves in htbl->huffval[]. - */ - - /* Find the input Huffman table */ - if (tblno < 0 || tblno >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - htbl = - isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno]; - if (htbl == NULL) - ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno); - - /* Allocate a workspace if we haven't already done so. */ - if (*pdtbl == NULL) - *pdtbl = (d_derived_tbl *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(d_derived_tbl)); - dtbl = *pdtbl; - dtbl->pub = htbl; /* fill in back link */ - - /* Figure C.1: make table of Huffman code length for each symbol */ - - p = 0; - for (l = 1; l <= 16; l++) { - i = (int) htbl->bits[l]; - if (i < 0 || p + i > 256) /* protect against table overrun */ - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - while (i--) - huffsize[p++] = (char) l; - } - huffsize[p] = 0; - numsymbols = p; - - /* Figure C.2: generate the codes themselves */ - /* We also validate that the counts represent a legal Huffman code tree. */ - - code = 0; - si = huffsize[0]; - p = 0; - while (huffsize[p]) { - while (((int) huffsize[p]) == si) { - huffcode[p++] = code; - code++; - } - /* code is now 1 more than the last code used for codelength si; but - * it must still fit in si bits, since no code is allowed to be all ones. - */ - if (((INT32) code) >= (((INT32) 1) << si)) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - code <<= 1; - si++; - } - - /* Figure F.15: generate decoding tables for bit-sequential decoding */ - - p = 0; - for (l = 1; l <= 16; l++) { - if (htbl->bits[l]) { - /* valoffset[l] = huffval[] index of 1st symbol of code length l, - * minus the minimum code of length l - */ - dtbl->valoffset[l] = (INT32) p - (INT32) huffcode[p]; - p += htbl->bits[l]; - dtbl->maxcode[l] = huffcode[p-1]; /* maximum code of length l */ - } else { - dtbl->maxcode[l] = -1; /* -1 if no codes of this length */ - } - } - dtbl->maxcode[17] = 0xFFFFFL; /* ensures jpeg_huff_decode terminates */ - - /* Compute lookahead tables to speed up decoding. - * First we set all the table entries to 0, indicating "too long"; - * then we iterate through the Huffman codes that are short enough and - * fill in all the entries that correspond to bit sequences starting - * with that code. - */ - - MEMZERO(dtbl->look_nbits, SIZEOF(dtbl->look_nbits)); - - p = 0; - for (l = 1; l <= HUFF_LOOKAHEAD; l++) { - for (i = 1; i <= (int) htbl->bits[l]; i++, p++) { - /* l = current code's length, p = its index in huffcode[] & huffval[]. */ - /* Generate left-justified code followed by all possible bit sequences */ - lookbits = huffcode[p] << (HUFF_LOOKAHEAD-l); - for (ctr = 1 << (HUFF_LOOKAHEAD-l); ctr > 0; ctr--) { - dtbl->look_nbits[lookbits] = l; - dtbl->look_sym[lookbits] = htbl->huffval[p]; - lookbits++; - } - } - } - - /* Validate symbols as being reasonable. - * For AC tables, we make no check, but accept all byte values 0..255. - * For DC tables, we require the symbols to be in range 0..15. - * (Tighter bounds could be applied depending on the data depth and mode, - * but this is sufficient to ensure safe decoding.) - */ - if (isDC) { - for (i = 0; i < numsymbols; i++) { - int sym = htbl->huffval[i]; - if (sym < 0 || sym > 15) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - } - } -} - - -/* - * Out-of-line code for bit fetching. - * Note: current values of get_buffer and bits_left are passed as parameters, - * but are returned in the corresponding fields of the state struct. - * - * On most machines MIN_GET_BITS should be 25 to allow the full 32-bit width - * of get_buffer to be used. (On machines with wider words, an even larger - * buffer could be used.) However, on some machines 32-bit shifts are - * quite slow and take time proportional to the number of places shifted. - * (This is true with most PC compilers, for instance.) In this case it may - * be a win to set MIN_GET_BITS to the minimum value of 15. This reduces the - * average shift distance at the cost of more calls to jpeg_fill_bit_buffer. - */ - -#ifdef SLOW_SHIFT_32 -#define MIN_GET_BITS 15 /* minimum allowable value */ -#else -#define MIN_GET_BITS (BIT_BUF_SIZE-7) -#endif - - -LOCAL(boolean) -jpeg_fill_bit_buffer (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - int nbits) -/* Load up the bit buffer to a depth of at least nbits */ -{ - /* Copy heavily used state fields into locals (hopefully registers) */ - register const JOCTET * next_input_byte = state->next_input_byte; - register size_t bytes_in_buffer = state->bytes_in_buffer; - j_decompress_ptr cinfo = state->cinfo; - - /* Attempt to load at least MIN_GET_BITS bits into get_buffer. */ - /* (It is assumed that no request will be for more than that many bits.) */ - /* We fail to do so only if we hit a marker or are forced to suspend. */ - - if (cinfo->unread_marker == 0) { /* cannot advance past a marker */ - while (bits_left < MIN_GET_BITS) { - register int c; - - /* Attempt to read a byte */ - if (bytes_in_buffer == 0) { - if (! (*cinfo->src->fill_input_buffer) (cinfo)) - return FALSE; - next_input_byte = cinfo->src->next_input_byte; - bytes_in_buffer = cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - - /* If it's 0xFF, check and discard stuffed zero byte */ - if (c == 0xFF) { - /* Loop here to discard any padding FF's on terminating marker, - * so that we can save a valid unread_marker value. NOTE: we will - * accept multiple FF's followed by a 0 as meaning a single FF data - * byte. This data pattern is not valid according to the standard. - */ - do { - if (bytes_in_buffer == 0) { - if (! (*cinfo->src->fill_input_buffer) (cinfo)) - return FALSE; - next_input_byte = cinfo->src->next_input_byte; - bytes_in_buffer = cinfo->src->bytes_in_buffer; - } - bytes_in_buffer--; - c = GETJOCTET(*next_input_byte++); - } while (c == 0xFF); - - if (c == 0) { - /* Found FF/00, which represents an FF data byte */ - c = 0xFF; - } else { - /* Oops, it's actually a marker indicating end of compressed data. - * Save the marker code for later use. - * Fine point: it might appear that we should save the marker into - * bitread working state, not straight into permanent state. But - * once we have hit a marker, we cannot need to suspend within the - * current MCU, because we will read no more bytes from the data - * source. So it is OK to update permanent state right away. - */ - cinfo->unread_marker = c; - /* See if we need to insert some fake zero bits. */ - goto no_more_bytes; - } - } - - /* OK, load c into get_buffer */ - get_buffer = (get_buffer << 8) | c; - bits_left += 8; - } /* end while */ - } else { - no_more_bytes: - /* We get here if we've read the marker that terminates the compressed - * data segment. There should be enough bits in the buffer register - * to satisfy the request; if so, no problem. - */ - if (nbits > bits_left) { - /* Uh-oh. Report corrupted data to user and stuff zeroes into - * the data stream, so that we can produce some kind of image. - * We use a nonvolatile flag to ensure that only one warning message - * appears per data segment. - */ - if (! ((huff_entropy_ptr) cinfo->entropy)->insufficient_data) { - WARNMS(cinfo, JWRN_HIT_MARKER); - ((huff_entropy_ptr) cinfo->entropy)->insufficient_data = TRUE; - } - /* Fill the buffer with zero bits */ - get_buffer <<= MIN_GET_BITS - bits_left; - bits_left = MIN_GET_BITS; - } - } - - /* Unload the local registers */ - state->next_input_byte = next_input_byte; - state->bytes_in_buffer = bytes_in_buffer; - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - return TRUE; -} - - -/* - * Figure F.12: extend sign bit. - * On some machines, a shift and sub will be faster than a table lookup. - */ - -#ifdef AVOID_TABLES - -#define BIT_MASK(nbits) ((1<<(nbits))-1) -#define HUFF_EXTEND(x,s) ((x) < (1<<((s)-1)) ? (x) - ((1<<(s))-1) : (x)) - -#else - -#define BIT_MASK(nbits) bmask[nbits] -#define HUFF_EXTEND(x,s) ((x) <= bmask[(s) - 1] ? (x) - bmask[s] : (x)) - -static const int bmask[16] = /* bmask[n] is mask for n rightmost bits */ - { 0, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, - 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF }; - -#endif /* AVOID_TABLES */ - - -/* - * Out-of-line code for Huffman code decoding. - */ - -LOCAL(int) -jpeg_huff_decode (bitread_working_state * state, - register bit_buf_type get_buffer, register int bits_left, - d_derived_tbl * htbl, int min_bits) -{ - register int l = min_bits; - register INT32 code; - - /* HUFF_DECODE has determined that the code is at least min_bits */ - /* bits long, so fetch that many bits in one swoop. */ - - CHECK_BIT_BUFFER(*state, l, return -1); - code = GET_BITS(l); - - /* Collect the rest of the Huffman code one bit at a time. */ - /* This is per Figure F.16 in the JPEG spec. */ - - while (code > htbl->maxcode[l]) { - code <<= 1; - CHECK_BIT_BUFFER(*state, 1, return -1); - code |= GET_BITS(1); - l++; - } - - /* Unload the local registers */ - state->get_buffer = get_buffer; - state->bits_left = bits_left; - - /* With garbage input we may reach the sentinel value l = 17. */ - - if (l > 16) { - WARNMS(state->cinfo, JWRN_HUFF_BAD_CODE); - return 0; /* fake a zero as the safest result */ - } - - return htbl->pub->huffval[ (int) (code + htbl->valoffset[l]) ]; -} - - -/* - * Check for a restart marker & resynchronize decoder. - * Returns FALSE if must suspend. - */ - -LOCAL(boolean) -process_restart (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci; - - /* Throw away any unused bits remaining in bit buffer; */ - /* include any full bytes in next_marker's count of discarded bytes */ - cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8; - entropy->bitstate.bits_left = 0; - - /* Advance past the RSTn marker */ - if (! (*cinfo->marker->read_restart_marker) (cinfo)) - return FALSE; - - /* Re-initialize DC predictions to 0 */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) - entropy->saved.last_dc_val[ci] = 0; - /* Re-init EOB run count, too */ - entropy->saved.EOBRUN = 0; - - /* Reset restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; - - /* Reset out-of-data flag, unless read_restart_marker left us smack up - * against a marker. In that case we will end up treating the next data - * segment as empty, and we can avoid producing bogus output pixels by - * leaving the flag set. - */ - if (cinfo->unread_marker == 0) - entropy->insufficient_data = FALSE; - - return TRUE; -} - - -/* - * Huffman MCU decoding. - * Each of these routines decodes and returns one MCU's worth of - * Huffman-compressed coefficients. - * The coefficients are reordered from zigzag order into natural array order, - * but are not dequantized. - * - * The i'th block of the MCU is stored into the block pointed to by - * MCU_data[i]. WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER. - * (Wholesale zeroing is usually a little faster than retail...) - * - * We return FALSE if data source requested suspension. In that case no - * changes have been made to permanent state. (Exception: some output - * coefficients may already have been assigned. This is harmless for - * spectral selection, since we'll just re-assign them on the next call. - * Successive approximation AC refinement has to be more careful, however.) - */ - -/* - * MCU decoding for DC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int Al = cinfo->Al; - register int s, r; - int blkn, ci; - JBLOCKROW block; - BITREAD_STATE_VARS; - savable_state state; - d_derived_tbl * tbl; - jpeg_component_info * compptr; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - tbl = entropy->derived_tbls[compptr->dc_tbl_no]; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - HUFF_DECODE(s, br_state, tbl, return FALSE, label1); - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - - /* Convert DC difference to actual value, update last_dc_val */ - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Scale and output the coefficient (assumes jpeg_natural_order[0]=0) */ - (*block)[0] = (JCOEF) (s << Al); - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for AC initial scan (either spectral selection, - * or first pass of successive approximation). - */ - -METHODDEF(boolean) -decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int s, k, r; - unsigned int EOBRUN; - int Se, Al; - const int * natural_order; - JBLOCKROW block; - BITREAD_STATE_VARS; - d_derived_tbl * tbl; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - Se = cinfo->Se; - Al = cinfo->Al; - natural_order = cinfo->natural_order; - - /* Load up working state. - * We can avoid loading/saving bitread state if in an EOB run. - */ - EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ - - /* There is always only one block per MCU */ - - if (EOBRUN > 0) /* if it's a band of zeroes... */ - EOBRUN--; /* ...process it now (we do nothing) */ - else { - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - block = MCU_data[0]; - tbl = entropy->ac_derived_tbl; - - for (k = cinfo->Ss; k <= Se; k++) { - HUFF_DECODE(s, br_state, tbl, return FALSE, label2); - r = s >> 4; - s &= 15; - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Scale and output coefficient in natural (dezigzagged) order */ - (*block)[natural_order[k]] = (JCOEF) (s << Al); - } else { - if (r == 15) { /* ZRL */ - k += 15; /* skip 15 zeroes in band */ - } else { /* EOBr, run length is 2^r + appended bits */ - EOBRUN = 1 << r; - if (r) { /* EOBr, r > 0 */ - CHECK_BIT_BUFFER(br_state, r, return FALSE); - r = GET_BITS(r); - EOBRUN += r; - } - EOBRUN--; /* this band is processed at this moment */ - break; /* force end-of-band */ - } - } - } - - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - } - - /* Completed MCU, so update state */ - entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for DC successive approximation refinement scan. - * Note: we assume such scans can be multi-component, although the spec - * is not very clear on the point. - */ - -METHODDEF(boolean) -decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - int blkn; - JBLOCKROW block; - BITREAD_STATE_VARS; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* Not worth the cycles to check insufficient_data here, - * since we will not change the data anyway if we read zeroes. - */ - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - block = MCU_data[blkn]; - - /* Encoded data is simply the next bit of the two's-complement DC value */ - CHECK_BIT_BUFFER(br_state, 1, return FALSE); - if (GET_BITS(1)) - (*block)[0] |= p1; - /* Note: since we use |=, repeating the assignment later is safe */ - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * MCU decoding for AC successive approximation refinement scan. - */ - -METHODDEF(boolean) -decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - register int s, k, r; - unsigned int EOBRUN; - int Se, p1, m1; - const int * natural_order; - JBLOCKROW block; - JCOEFPTR thiscoef; - BITREAD_STATE_VARS; - d_derived_tbl * tbl; - int num_newnz; - int newnz_pos[DCTSIZE2]; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, don't modify the MCU. - */ - if (! entropy->insufficient_data) { - - Se = cinfo->Se; - p1 = 1 << cinfo->Al; /* 1 in the bit position being coded */ - m1 = (-1) << cinfo->Al; /* -1 in the bit position being coded */ - natural_order = cinfo->natural_order; - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */ - - /* There is always only one block per MCU */ - block = MCU_data[0]; - tbl = entropy->ac_derived_tbl; - - /* If we are forced to suspend, we must undo the assignments to any newly - * nonzero coefficients in the block, because otherwise we'd get confused - * next time about which coefficients were already nonzero. - * But we need not undo addition of bits to already-nonzero coefficients; - * instead, we can test the current bit to see if we already did it. - */ - num_newnz = 0; - - /* initialize coefficient loop counter to start of band */ - k = cinfo->Ss; - - if (EOBRUN == 0) { - for (; k <= Se; k++) { - HUFF_DECODE(s, br_state, tbl, goto undoit, label3); - r = s >> 4; - s &= 15; - if (s) { - if (s != 1) /* size of new coef should always be 1 */ - WARNMS(cinfo, JWRN_HUFF_BAD_CODE); - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) - s = p1; /* newly nonzero coef is positive */ - else - s = m1; /* newly nonzero coef is negative */ - } else { - if (r != 15) { - EOBRUN = 1 << r; /* EOBr, run length is 2^r + appended bits */ - if (r) { - CHECK_BIT_BUFFER(br_state, r, goto undoit); - r = GET_BITS(r); - EOBRUN += r; - } - break; /* rest of block is handled by EOB logic */ - } - /* note s = 0 for processing ZRL */ - } - /* Advance over already-nonzero coefs and r still-zero coefs, - * appending correction bits to the nonzeroes. A correction bit is 1 - * if the absolute value of the coefficient must be increased. - */ - do { - thiscoef = *block + natural_order[k]; - if (*thiscoef != 0) { - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) { - if ((*thiscoef & p1) == 0) { /* do nothing if already set it */ - if (*thiscoef >= 0) - *thiscoef += p1; - else - *thiscoef += m1; - } - } - } else { - if (--r < 0) - break; /* reached target zero coefficient */ - } - k++; - } while (k <= Se); - if (s) { - int pos = natural_order[k]; - /* Output newly nonzero coefficient */ - (*block)[pos] = (JCOEF) s; - /* Remember its position in case we have to suspend */ - newnz_pos[num_newnz++] = pos; - } - } - } - - if (EOBRUN > 0) { - /* Scan any remaining coefficient positions after the end-of-band - * (the last newly nonzero coefficient, if any). Append a correction - * bit to each already-nonzero coefficient. A correction bit is 1 - * if the absolute value of the coefficient must be increased. - */ - for (; k <= Se; k++) { - thiscoef = *block + natural_order[k]; - if (*thiscoef != 0) { - CHECK_BIT_BUFFER(br_state, 1, goto undoit); - if (GET_BITS(1)) { - if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */ - if (*thiscoef >= 0) - *thiscoef += p1; - else - *thiscoef += m1; - } - } - } - } - /* Count one block completed in EOB run */ - EOBRUN--; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */ - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; - -undoit: - /* Re-zero any output coefficients that we made newly nonzero */ - while (num_newnz > 0) - (*block)[newnz_pos[--num_newnz]] = 0; - - return FALSE; -} - - -/* - * Decode one MCU's worth of Huffman-compressed coefficients, - * partial blocks. - */ - -METHODDEF(boolean) -decode_mcu_sub (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - const int * natural_order; - int Se, blkn; - BITREAD_STATE_VARS; - savable_state state; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - natural_order = cinfo->natural_order; - Se = cinfo->lim_Se; - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - JBLOCKROW block = MCU_data[blkn]; - d_derived_tbl * htbl; - register int s, k, r; - int coef_limit, ci; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - htbl = entropy->dc_cur_tbls[blkn]; - HUFF_DECODE(s, br_state, htbl, return FALSE, label1); - - htbl = entropy->ac_cur_tbls[blkn]; - k = 1; - coef_limit = entropy->coef_limit[blkn]; - if (coef_limit) { - /* Convert DC difference to actual value, update last_dc_val */ - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - ci = cinfo->MCU_membership[blkn]; - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Output the DC coefficient */ - (*block)[0] = (JCOEF) s; - - /* Section F.2.2.2: decode the AC coefficients */ - /* Since zeroes are skipped, output area must be cleared beforehand */ - for (; k < coef_limit; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label2); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Output coefficient in natural (dezigzagged) order. - * Note: the extra entries in natural_order[] will save us - * if k > Se, which could happen if the data is corrupted. - */ - (*block)[natural_order[k]] = (JCOEF) s; - } else { - if (r != 15) - goto EndOfBlock; - k += 15; - } - } - } else { - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } - } - - /* Section F.2.2.2: decode the AC coefficients */ - /* In this path we just discard the values */ - for (; k <= Se; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label3); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } else { - if (r != 15) - break; - k += 15; - } - } - - EndOfBlock: ; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * Decode one MCU's worth of Huffman-compressed coefficients, - * full-size blocks. - */ - -METHODDEF(boolean) -decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int blkn; - BITREAD_STATE_VARS; - savable_state state; - - /* Process restart marker if needed; may have to suspend */ - if (cinfo->restart_interval) { - if (entropy->restarts_to_go == 0) - if (! process_restart(cinfo)) - return FALSE; - } - - /* If we've run out of data, just leave the MCU set to zeroes. - * This way, we return uniform gray for the remainder of the segment. - */ - if (! entropy->insufficient_data) { - - /* Load up working state */ - BITREAD_LOAD_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(state, entropy->saved); - - /* Outer loop handles each block in the MCU */ - - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - JBLOCKROW block = MCU_data[blkn]; - d_derived_tbl * htbl; - register int s, k, r; - int coef_limit, ci; - - /* Decode a single block's worth of coefficients */ - - /* Section F.2.2.1: decode the DC coefficient difference */ - htbl = entropy->dc_cur_tbls[blkn]; - HUFF_DECODE(s, br_state, htbl, return FALSE, label1); - - htbl = entropy->ac_cur_tbls[blkn]; - k = 1; - coef_limit = entropy->coef_limit[blkn]; - if (coef_limit) { - /* Convert DC difference to actual value, update last_dc_val */ - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - } - ci = cinfo->MCU_membership[blkn]; - s += state.last_dc_val[ci]; - state.last_dc_val[ci] = s; - /* Output the DC coefficient */ - (*block)[0] = (JCOEF) s; - - /* Section F.2.2.2: decode the AC coefficients */ - /* Since zeroes are skipped, output area must be cleared beforehand */ - for (; k < coef_limit; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label2); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - r = GET_BITS(s); - s = HUFF_EXTEND(r, s); - /* Output coefficient in natural (dezigzagged) order. - * Note: the extra entries in jpeg_natural_order[] will save us - * if k >= DCTSIZE2, which could happen if the data is corrupted. - */ - (*block)[jpeg_natural_order[k]] = (JCOEF) s; - } else { - if (r != 15) - goto EndOfBlock; - k += 15; - } - } - } else { - if (s) { - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } - } - - /* Section F.2.2.2: decode the AC coefficients */ - /* In this path we just discard the values */ - for (; k < DCTSIZE2; k++) { - HUFF_DECODE(s, br_state, htbl, return FALSE, label3); - - r = s >> 4; - s &= 15; - - if (s) { - k += r; - CHECK_BIT_BUFFER(br_state, s, return FALSE); - DROP_BITS(s); - } else { - if (r != 15) - break; - k += 15; - } - } - - EndOfBlock: ; - } - - /* Completed MCU, so update state */ - BITREAD_SAVE_STATE(cinfo,entropy->bitstate); - ASSIGN_STATE(entropy->saved, state); - } - - /* Account for restart interval (no-op if not using restarts) */ - entropy->restarts_to_go--; - - return TRUE; -} - - -/* - * Initialize for a Huffman-compressed scan. - */ - -METHODDEF(void) -start_pass_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy; - int ci, blkn, tbl, i; - jpeg_component_info * compptr; - - if (cinfo->progressive_mode) { - /* Validate progressive scan parameters */ - if (cinfo->Ss == 0) { - if (cinfo->Se != 0) - goto bad; - } else { - /* need not check Ss/Se < 0 since they came from unsigned bytes */ - if (cinfo->Se < cinfo->Ss || cinfo->Se > cinfo->lim_Se) - goto bad; - /* AC scans may have only one component */ - if (cinfo->comps_in_scan != 1) - goto bad; - } - if (cinfo->Ah != 0) { - /* Successive approximation refinement scan: must have Al = Ah-1. */ - if (cinfo->Ah-1 != cinfo->Al) - goto bad; - } - if (cinfo->Al > 13) { /* need not check for < 0 */ - /* Arguably the maximum Al value should be less than 13 for 8-bit precision, - * but the spec doesn't say so, and we try to be liberal about what we - * accept. Note: large Al values could result in out-of-range DC - * coefficients during early scans, leading to bizarre displays due to - * overflows in the IDCT math. But we won't crash. - */ - bad: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - } - /* Update progression status, and verify that scan order is legal. - * Note that inter-scan inconsistencies are treated as warnings - * not fatal errors ... not clear if this is right way to behave. - */ - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - int coefi, cindex = cinfo->cur_comp_info[ci]->component_index; - int *coef_bit_ptr = & cinfo->coef_bits[cindex][0]; - if (cinfo->Ss && coef_bit_ptr[0] < 0) /* AC without prior DC scan */ - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0); - for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) { - int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi]; - if (cinfo->Ah != expected) - WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi); - coef_bit_ptr[coefi] = cinfo->Al; - } - } - - /* Select MCU decoding routine */ - if (cinfo->Ah == 0) { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_first; - else - entropy->pub.decode_mcu = decode_mcu_AC_first; - } else { - if (cinfo->Ss == 0) - entropy->pub.decode_mcu = decode_mcu_DC_refine; - else - entropy->pub.decode_mcu = decode_mcu_AC_refine; - } - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Make sure requested tables are present, and compute derived tables. - * We may build same derived table more than once, but it's not expensive. - */ - if (cinfo->Ss == 0) { - if (cinfo->Ah == 0) { /* DC refinement needs no table */ - tbl = compptr->dc_tbl_no; - jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, - & entropy->derived_tbls[tbl]); - } - } else { - tbl = compptr->ac_tbl_no; - jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, - & entropy->derived_tbls[tbl]); - /* remember the single active table */ - entropy->ac_derived_tbl = entropy->derived_tbls[tbl]; - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - - /* Initialize private state variables */ - entropy->saved.EOBRUN = 0; - } else { - /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG. - * This ought to be an error condition, but we make it a warning because - * there are some baseline files out there with all zeroes in these bytes. - */ - if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 || - ((cinfo->is_baseline || cinfo->Se < DCTSIZE2) && - cinfo->Se != cinfo->lim_Se)) - WARNMS(cinfo, JWRN_NOT_SEQUENTIAL); - - /* Select MCU decoding routine */ - /* We retain the hard-coded case for full-size blocks. - * This is not necessary, but it appears that this version is slightly - * more performant in the given implementation. - * With an improved implementation we would prefer a single optimized - * function. - */ - if (cinfo->lim_Se != DCTSIZE2-1) - entropy->pub.decode_mcu = decode_mcu_sub; - else - entropy->pub.decode_mcu = decode_mcu; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Compute derived values for Huffman tables */ - /* We may do this more than once for a table, but it's not expensive */ - tbl = compptr->dc_tbl_no; - jpeg_make_d_derived_tbl(cinfo, TRUE, tbl, - & entropy->dc_derived_tbls[tbl]); - if (cinfo->lim_Se) { /* AC needs no table when not present */ - tbl = compptr->ac_tbl_no; - jpeg_make_d_derived_tbl(cinfo, FALSE, tbl, - & entropy->ac_derived_tbls[tbl]); - } - /* Initialize DC predictions to 0 */ - entropy->saved.last_dc_val[ci] = 0; - } - - /* Precalculate decoding info for each block in an MCU of this scan */ - for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) { - ci = cinfo->MCU_membership[blkn]; - compptr = cinfo->cur_comp_info[ci]; - /* Precalculate which table to use for each block */ - entropy->dc_cur_tbls[blkn] = entropy->dc_derived_tbls[compptr->dc_tbl_no]; - entropy->ac_cur_tbls[blkn] = entropy->ac_derived_tbls[compptr->ac_tbl_no]; - /* Decide whether we really care about the coefficient values */ - if (compptr->component_needed) { - ci = compptr->DCT_v_scaled_size; - i = compptr->DCT_h_scaled_size; - switch (cinfo->lim_Se) { - case (1*1-1): - entropy->coef_limit[blkn] = 1; - break; - case (2*2-1): - if (ci <= 0 || ci > 2) ci = 2; - if (i <= 0 || i > 2) i = 2; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order2[ci - 1][i - 1]; - break; - case (3*3-1): - if (ci <= 0 || ci > 3) ci = 3; - if (i <= 0 || i > 3) i = 3; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order3[ci - 1][i - 1]; - break; - case (4*4-1): - if (ci <= 0 || ci > 4) ci = 4; - if (i <= 0 || i > 4) i = 4; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order4[ci - 1][i - 1]; - break; - case (5*5-1): - if (ci <= 0 || ci > 5) ci = 5; - if (i <= 0 || i > 5) i = 5; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order5[ci - 1][i - 1]; - break; - case (6*6-1): - if (ci <= 0 || ci > 6) ci = 6; - if (i <= 0 || i > 6) i = 6; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order6[ci - 1][i - 1]; - break; - case (7*7-1): - if (ci <= 0 || ci > 7) ci = 7; - if (i <= 0 || i > 7) i = 7; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order7[ci - 1][i - 1]; - break; - default: - if (ci <= 0 || ci > 8) ci = 8; - if (i <= 0 || i > 8) i = 8; - entropy->coef_limit[blkn] = 1 + jpeg_zigzag_order[ci - 1][i - 1]; - break; - } - } else { - entropy->coef_limit[blkn] = 0; - } - } - } - - /* Initialize bitread state variables */ - entropy->bitstate.bits_left = 0; - entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify quiet */ - entropy->insufficient_data = FALSE; - - /* Initialize restart counter */ - entropy->restarts_to_go = cinfo->restart_interval; -} - - -/* - * Module initialization routine for Huffman entropy decoding. - */ - -GLOBAL(void) -jinit_huff_decoder (j_decompress_ptr cinfo) -{ - huff_entropy_ptr entropy; - int i; - - entropy = (huff_entropy_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(huff_entropy_decoder)); - cinfo->entropy = (struct jpeg_entropy_decoder *) entropy; - entropy->pub.start_pass = start_pass_huff_decoder; - - if (cinfo->progressive_mode) { - /* Create progression status table */ - int *coef_bit_ptr, ci; - cinfo->coef_bits = (int (*)[DCTSIZE2]) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components*DCTSIZE2*SIZEOF(int)); - coef_bit_ptr = & cinfo->coef_bits[0][0]; - for (ci = 0; ci < cinfo->num_components; ci++) - for (i = 0; i < DCTSIZE2; i++) - *coef_bit_ptr++ = -1; - - /* Mark derived tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->derived_tbls[i] = NULL; - } - } else { - /* Mark tables unallocated */ - for (i = 0; i < NUM_HUFF_TBLS; i++) { - entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL; - } - } -} diff --git a/jpeg/jdinput.c b/jpeg/jdinput.c deleted file mode 100755 index 2c5c717..0000000 --- a/jpeg/jdinput.c +++ /dev/null @@ -1,661 +0,0 @@ -/* - * jdinput.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2002-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains input control logic for the JPEG decompressor. - * These routines are concerned with controlling the decompressor's input - * processing (marker reading and coefficient decoding). The actual input - * reading is done in jdmarker.c, jdhuff.c, and jdarith.c. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef struct { - struct jpeg_input_controller pub; /* public fields */ - - int inheaders; /* Nonzero until first SOS is reached */ -} my_input_controller; - -typedef my_input_controller * my_inputctl_ptr; - - -/* Forward declarations */ -METHODDEF(int) consume_markers JPP((j_decompress_ptr cinfo)); - - -/* - * Routines to calculate various quantities related to the size of the image. - */ - - -/* - * Compute output image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - */ - -GLOBAL(void) -jpeg_core_output_dimensions (j_decompress_ptr cinfo) -/* Do computations that are needed before master selection phase. - * This function is used for transcoding and full decompression. - */ -{ -#ifdef IDCT_SCALING_SUPPORTED - int ci; - jpeg_component_info *compptr; - - /* Compute actual output image dimensions and DCT scaling choices. */ - if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom) { - /* Provide 1/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 1; - cinfo->min_DCT_v_scaled_size = 1; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 2) { - /* Provide 2/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 2L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 2L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 2; - cinfo->min_DCT_v_scaled_size = 2; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 3) { - /* Provide 3/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 3L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 3L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 3; - cinfo->min_DCT_v_scaled_size = 3; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 4) { - /* Provide 4/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 4L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 4L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 4; - cinfo->min_DCT_v_scaled_size = 4; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 5) { - /* Provide 5/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 5L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 5L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 5; - cinfo->min_DCT_v_scaled_size = 5; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 6) { - /* Provide 6/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 6L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 6L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 6; - cinfo->min_DCT_v_scaled_size = 6; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 7) { - /* Provide 7/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 7L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 7L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 7; - cinfo->min_DCT_v_scaled_size = 7; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 8) { - /* Provide 8/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 8L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 8L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 8; - cinfo->min_DCT_v_scaled_size = 8; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 9) { - /* Provide 9/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 9L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 9L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 9; - cinfo->min_DCT_v_scaled_size = 9; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 10) { - /* Provide 10/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 10L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 10L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 10; - cinfo->min_DCT_v_scaled_size = 10; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 11) { - /* Provide 11/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 11L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 11L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 11; - cinfo->min_DCT_v_scaled_size = 11; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 12) { - /* Provide 12/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 12L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 12L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 12; - cinfo->min_DCT_v_scaled_size = 12; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 13) { - /* Provide 13/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 13L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 13L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 13; - cinfo->min_DCT_v_scaled_size = 13; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 14) { - /* Provide 14/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 14L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 14L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 14; - cinfo->min_DCT_v_scaled_size = 14; - } else if (cinfo->scale_num * cinfo->block_size <= cinfo->scale_denom * 15) { - /* Provide 15/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 15L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 15L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 15; - cinfo->min_DCT_v_scaled_size = 15; - } else { - /* Provide 16/block_size scaling */ - cinfo->output_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * 16L, (long) cinfo->block_size); - cinfo->output_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * 16L, (long) cinfo->block_size); - cinfo->min_DCT_h_scaled_size = 16; - cinfo->min_DCT_v_scaled_size = 16; - } - - /* Recompute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size; - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size; - } - -#else /* !IDCT_SCALING_SUPPORTED */ - - /* Hardwire it to "no scaling" */ - cinfo->output_width = cinfo->image_width; - cinfo->output_height = cinfo->image_height; - /* jdinput.c has already initialized DCT_scaled_size, - * and has computed unscaled downsampled_width and downsampled_height. - */ - -#endif /* IDCT_SCALING_SUPPORTED */ -} - - -LOCAL(void) -initial_setup (j_decompress_ptr cinfo) -/* Called once, when first SOS marker is reached */ -{ - int ci; - jpeg_component_info *compptr; - - /* Make sure image isn't bigger than I can handle */ - if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION || - (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION) - ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION); - - /* For now, precision must match compiled-in value... */ - if (cinfo->data_precision != BITS_IN_JSAMPLE) - ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision); - - /* Check that number of components won't exceed internal array sizes */ - if (cinfo->num_components > MAX_COMPONENTS) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, - MAX_COMPONENTS); - - /* Compute maximum sampling factors; check factor validity */ - cinfo->max_h_samp_factor = 1; - cinfo->max_v_samp_factor = 1; - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR || - compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR) - ERREXIT(cinfo, JERR_BAD_SAMPLING); - cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor, - compptr->h_samp_factor); - cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor, - compptr->v_samp_factor); - } - - /* Derive block_size, natural_order, and lim_Se */ - if (cinfo->is_baseline || (cinfo->progressive_mode && - cinfo->comps_in_scan)) { /* no pseudo SOS marker */ - cinfo->block_size = DCTSIZE; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - } else - switch (cinfo->Se) { - case (1*1-1): - cinfo->block_size = 1; - cinfo->natural_order = jpeg_natural_order; /* not needed */ - cinfo->lim_Se = cinfo->Se; - break; - case (2*2-1): - cinfo->block_size = 2; - cinfo->natural_order = jpeg_natural_order2; - cinfo->lim_Se = cinfo->Se; - break; - case (3*3-1): - cinfo->block_size = 3; - cinfo->natural_order = jpeg_natural_order3; - cinfo->lim_Se = cinfo->Se; - break; - case (4*4-1): - cinfo->block_size = 4; - cinfo->natural_order = jpeg_natural_order4; - cinfo->lim_Se = cinfo->Se; - break; - case (5*5-1): - cinfo->block_size = 5; - cinfo->natural_order = jpeg_natural_order5; - cinfo->lim_Se = cinfo->Se; - break; - case (6*6-1): - cinfo->block_size = 6; - cinfo->natural_order = jpeg_natural_order6; - cinfo->lim_Se = cinfo->Se; - break; - case (7*7-1): - cinfo->block_size = 7; - cinfo->natural_order = jpeg_natural_order7; - cinfo->lim_Se = cinfo->Se; - break; - case (8*8-1): - cinfo->block_size = 8; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (9*9-1): - cinfo->block_size = 9; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (10*10-1): - cinfo->block_size = 10; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (11*11-1): - cinfo->block_size = 11; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (12*12-1): - cinfo->block_size = 12; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (13*13-1): - cinfo->block_size = 13; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (14*14-1): - cinfo->block_size = 14; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (15*15-1): - cinfo->block_size = 15; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - case (16*16-1): - cinfo->block_size = 16; - cinfo->natural_order = jpeg_natural_order; - cinfo->lim_Se = DCTSIZE2-1; - break; - default: - ERREXIT4(cinfo, JERR_BAD_PROGRESSION, - cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al); - break; - } - - /* We initialize DCT_scaled_size and min_DCT_scaled_size to block_size. - * In the full decompressor, - * this will be overridden by jpeg_calc_output_dimensions in jdmaster.c; - * but in the transcoder, - * jpeg_calc_output_dimensions is not used, so we must do it here. - */ - cinfo->min_DCT_h_scaled_size = cinfo->block_size; - cinfo->min_DCT_v_scaled_size = cinfo->block_size; - - /* Compute dimensions of components */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->DCT_h_scaled_size = cinfo->block_size; - compptr->DCT_v_scaled_size = cinfo->block_size; - /* Size in DCT blocks */ - compptr->width_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->height_in_blocks = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - /* downsampled_width and downsampled_height will also be overridden by - * jdmaster.c if we are doing full decompression. The transcoder library - * doesn't use these values, but the calling application might. - */ - /* Size in samples */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor, - (long) cinfo->max_h_samp_factor); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor, - (long) cinfo->max_v_samp_factor); - /* Mark component needed, until color conversion says otherwise */ - compptr->component_needed = TRUE; - /* Mark no quantization table yet saved for component */ - compptr->quant_table = NULL; - } - - /* Compute number of fully interleaved MCU rows. */ - cinfo->total_iMCU_rows = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - /* Decide whether file contains multiple scans */ - if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode) - cinfo->inputctl->has_multiple_scans = TRUE; - else - cinfo->inputctl->has_multiple_scans = FALSE; -} - - -LOCAL(void) -per_scan_setup (j_decompress_ptr cinfo) -/* Do computations that are needed before processing a JPEG scan */ -/* cinfo->comps_in_scan and cinfo->cur_comp_info[] were set from SOS marker */ -{ - int ci, mcublks, tmp; - jpeg_component_info *compptr; - - if (cinfo->comps_in_scan == 1) { - - /* Noninterleaved (single-component) scan */ - compptr = cinfo->cur_comp_info[0]; - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = compptr->width_in_blocks; - cinfo->MCU_rows_in_scan = compptr->height_in_blocks; - - /* For noninterleaved scan, always one block per MCU */ - compptr->MCU_width = 1; - compptr->MCU_height = 1; - compptr->MCU_blocks = 1; - compptr->MCU_sample_width = compptr->DCT_h_scaled_size; - compptr->last_col_width = 1; - /* For noninterleaved scans, it is convenient to define last_row_height - * as the number of block rows present in the last iMCU row. - */ - tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor); - if (tmp == 0) tmp = compptr->v_samp_factor; - compptr->last_row_height = tmp; - - /* Prepare array describing MCU composition */ - cinfo->blocks_in_MCU = 1; - cinfo->MCU_membership[0] = 0; - - } else { - - /* Interleaved (multi-component) scan */ - if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN) - ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan, - MAX_COMPS_IN_SCAN); - - /* Overall image size in MCUs */ - cinfo->MCUs_per_row = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width, - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - cinfo->MCU_rows_in_scan = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height, - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - - cinfo->blocks_in_MCU = 0; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* Sampling factors give # of blocks of component in each MCU */ - compptr->MCU_width = compptr->h_samp_factor; - compptr->MCU_height = compptr->v_samp_factor; - compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height; - compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_h_scaled_size; - /* Figure number of non-dummy blocks in last MCU column & row */ - tmp = (int) (compptr->width_in_blocks % compptr->MCU_width); - if (tmp == 0) tmp = compptr->MCU_width; - compptr->last_col_width = tmp; - tmp = (int) (compptr->height_in_blocks % compptr->MCU_height); - if (tmp == 0) tmp = compptr->MCU_height; - compptr->last_row_height = tmp; - /* Prepare array describing MCU composition */ - mcublks = compptr->MCU_blocks; - if (cinfo->blocks_in_MCU + mcublks > D_MAX_BLOCKS_IN_MCU) - ERREXIT(cinfo, JERR_BAD_MCU_SIZE); - while (mcublks-- > 0) { - cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci; - } - } - - } -} - - -/* - * Save away a copy of the Q-table referenced by each component present - * in the current scan, unless already saved during a prior scan. - * - * In a multiple-scan JPEG file, the encoder could assign different components - * the same Q-table slot number, but change table definitions between scans - * so that each component uses a different Q-table. (The IJG encoder is not - * currently capable of doing this, but other encoders might.) Since we want - * to be able to dequantize all the components at the end of the file, this - * means that we have to save away the table actually used for each component. - * We do this by copying the table at the start of the first scan containing - * the component. - * The JPEG spec prohibits the encoder from changing the contents of a Q-table - * slot between scans of a component using that slot. If the encoder does so - * anyway, this decoder will simply use the Q-table values that were current - * at the start of the first scan for the component. - * - * The decompressor output side looks only at the saved quant tables, - * not at the current Q-table slots. - */ - -LOCAL(void) -latch_quant_tables (j_decompress_ptr cinfo) -{ - int ci, qtblno; - jpeg_component_info *compptr; - JQUANT_TBL * qtbl; - - for (ci = 0; ci < cinfo->comps_in_scan; ci++) { - compptr = cinfo->cur_comp_info[ci]; - /* No work if we already saved Q-table for this component */ - if (compptr->quant_table != NULL) - continue; - /* Make sure specified quantization table is present */ - qtblno = compptr->quant_tbl_no; - if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS || - cinfo->quant_tbl_ptrs[qtblno] == NULL) - ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno); - /* OK, save away the quantization table */ - qtbl = (JQUANT_TBL *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(JQUANT_TBL)); - MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JQUANT_TBL)); - compptr->quant_table = qtbl; - } -} - - -/* - * Initialize the input modules to read a scan of compressed data. - * The first call to this is done by jdmaster.c after initializing - * the entire decompressor (during jpeg_start_decompress). - * Subsequent calls come from consume_markers, below. - */ - -METHODDEF(void) -start_input_pass (j_decompress_ptr cinfo) -{ - per_scan_setup(cinfo); - latch_quant_tables(cinfo); - (*cinfo->entropy->start_pass) (cinfo); - (*cinfo->coef->start_input_pass) (cinfo); - cinfo->inputctl->consume_input = cinfo->coef->consume_data; -} - - -/* - * Finish up after inputting a compressed-data scan. - * This is called by the coefficient controller after it's read all - * the expected data of the scan. - */ - -METHODDEF(void) -finish_input_pass (j_decompress_ptr cinfo) -{ - cinfo->inputctl->consume_input = consume_markers; -} - - -/* - * Read JPEG markers before, between, or after compressed-data scans. - * Change state as necessary when a new scan is reached. - * Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - * - * The consume_input method pointer points either here or to the - * coefficient controller's consume_data routine, depending on whether - * we are reading a compressed data segment or inter-segment markers. - * - * Note: This function should NOT return a pseudo SOS marker (with zero - * component number) to the caller. A pseudo marker received by - * read_markers is processed and then skipped for other markers. - */ - -METHODDEF(int) -consume_markers (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - int val; - - if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */ - return JPEG_REACHED_EOI; - - for (;;) { /* Loop to pass pseudo SOS marker */ - val = (*cinfo->marker->read_markers) (cinfo); - - switch (val) { - case JPEG_REACHED_SOS: /* Found SOS */ - if (inputctl->inheaders) { /* 1st SOS */ - if (inputctl->inheaders == 1) - initial_setup(cinfo); - if (cinfo->comps_in_scan == 0) { /* pseudo SOS marker */ - inputctl->inheaders = 2; - break; - } - inputctl->inheaders = 0; - /* Note: start_input_pass must be called by jdmaster.c - * before any more input can be consumed. jdapimin.c is - * responsible for enforcing this sequencing. - */ - } else { /* 2nd or later SOS marker */ - if (! inputctl->pub.has_multiple_scans) - ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */ - if (cinfo->comps_in_scan == 0) /* unexpected pseudo SOS marker */ - break; - start_input_pass(cinfo); - } - return val; - case JPEG_REACHED_EOI: /* Found EOI */ - inputctl->pub.eoi_reached = TRUE; - if (inputctl->inheaders) { /* Tables-only datastream, apparently */ - if (cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOF_NO_SOS); - } else { - /* Prevent infinite loop in coef ctlr's decompress_data routine - * if user set output_scan_number larger than number of scans. - */ - if (cinfo->output_scan_number > cinfo->input_scan_number) - cinfo->output_scan_number = cinfo->input_scan_number; - } - return val; - case JPEG_SUSPENDED: - return val; - default: - return val; - } - } -} - - -/* - * Reset state to begin a fresh datastream. - */ - -METHODDEF(void) -reset_input_controller (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl; - - inputctl->pub.consume_input = consume_markers; - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - inputctl->pub.eoi_reached = FALSE; - inputctl->inheaders = 1; - /* Reset other modules */ - (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); - (*cinfo->marker->reset_marker_reader) (cinfo); - /* Reset progression state -- would be cleaner if entropy decoder did this */ - cinfo->coef_bits = NULL; -} - - -/* - * Initialize the input controller module. - * This is called only once, when the decompression object is created. - */ - -GLOBAL(void) -jinit_input_controller (j_decompress_ptr cinfo) -{ - my_inputctl_ptr inputctl; - - /* Create subobject in permanent pool */ - inputctl = (my_inputctl_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_input_controller)); - cinfo->inputctl = (struct jpeg_input_controller *) inputctl; - /* Initialize method pointers */ - inputctl->pub.consume_input = consume_markers; - inputctl->pub.reset_input_controller = reset_input_controller; - inputctl->pub.start_input_pass = start_input_pass; - inputctl->pub.finish_input_pass = finish_input_pass; - /* Initialize state: can't use reset_input_controller since we don't - * want to try to reset other modules yet. - */ - inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */ - inputctl->pub.eoi_reached = FALSE; - inputctl->inheaders = 1; -} diff --git a/jpeg/jdmainct.c b/jpeg/jdmainct.c deleted file mode 100755 index 02723ca..0000000 --- a/jpeg/jdmainct.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * jdmainct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the main buffer controller for decompression. - * The main buffer lies between the JPEG decompressor proper and the - * post-processor; it holds downsampled data in the JPEG colorspace. - * - * Note that this code is bypassed in raw-data mode, since the application - * supplies the equivalent of the main buffer in that case. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * In the current system design, the main buffer need never be a full-image - * buffer; any full-height buffers will be found inside the coefficient or - * postprocessing controllers. Nonetheless, the main controller is not - * trivial. Its responsibility is to provide context rows for upsampling/ - * rescaling, and doing this in an efficient fashion is a bit tricky. - * - * Postprocessor input data is counted in "row groups". A row group - * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size) - * sample rows of each component. (We require DCT_scaled_size values to be - * chosen such that these numbers are integers. In practice DCT_scaled_size - * values will likely be powers of two, so we actually have the stronger - * condition that DCT_scaled_size / min_DCT_scaled_size is an integer.) - * Upsampling will typically produce max_v_samp_factor pixel rows from each - * row group (times any additional scale factor that the upsampler is - * applying). - * - * The coefficient controller will deliver data to us one iMCU row at a time; - * each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or - * exactly min_DCT_scaled_size row groups. (This amount of data corresponds - * to one row of MCUs when the image is fully interleaved.) Note that the - * number of sample rows varies across components, but the number of row - * groups does not. Some garbage sample rows may be included in the last iMCU - * row at the bottom of the image. - * - * Depending on the vertical scaling algorithm used, the upsampler may need - * access to the sample row(s) above and below its current input row group. - * The upsampler is required to set need_context_rows TRUE at global selection - * time if so. When need_context_rows is FALSE, this controller can simply - * obtain one iMCU row at a time from the coefficient controller and dole it - * out as row groups to the postprocessor. - * - * When need_context_rows is TRUE, this controller guarantees that the buffer - * passed to postprocessing contains at least one row group's worth of samples - * above and below the row group(s) being processed. Note that the context - * rows "above" the first passed row group appear at negative row offsets in - * the passed buffer. At the top and bottom of the image, the required - * context rows are manufactured by duplicating the first or last real sample - * row; this avoids having special cases in the upsampling inner loops. - * - * The amount of context is fixed at one row group just because that's a - * convenient number for this controller to work with. The existing - * upsamplers really only need one sample row of context. An upsampler - * supporting arbitrary output rescaling might wish for more than one row - * group of context when shrinking the image; tough, we don't handle that. - * (This is justified by the assumption that downsizing will be handled mostly - * by adjusting the DCT_scaled_size values, so that the actual scale factor at - * the upsample step needn't be much less than one.) - * - * To provide the desired context, we have to retain the last two row groups - * of one iMCU row while reading in the next iMCU row. (The last row group - * can't be processed until we have another row group for its below-context, - * and so we have to save the next-to-last group too for its above-context.) - * We could do this most simply by copying data around in our buffer, but - * that'd be very slow. We can avoid copying any data by creating a rather - * strange pointer structure. Here's how it works. We allocate a workspace - * consisting of M+2 row groups (where M = min_DCT_scaled_size is the number - * of row groups per iMCU row). We create two sets of redundant pointers to - * the workspace. Labeling the physical row groups 0 to M+1, the synthesized - * pointer lists look like this: - * M+1 M-1 - * master pointer --> 0 master pointer --> 0 - * 1 1 - * ... ... - * M-3 M-3 - * M-2 M - * M-1 M+1 - * M M-2 - * M+1 M-1 - * 0 0 - * We read alternate iMCU rows using each master pointer; thus the last two - * row groups of the previous iMCU row remain un-overwritten in the workspace. - * The pointer lists are set up so that the required context rows appear to - * be adjacent to the proper places when we pass the pointer lists to the - * upsampler. - * - * The above pictures describe the normal state of the pointer lists. - * At top and bottom of the image, we diddle the pointer lists to duplicate - * the first or last sample row as necessary (this is cheaper than copying - * sample rows around). - * - * This scheme breaks down if M < 2, ie, min_DCT_scaled_size is 1. In that - * situation each iMCU row provides only one row group so the buffering logic - * must be different (eg, we must read two iMCU rows before we can emit the - * first row group). For now, we simply do not support providing context - * rows when min_DCT_scaled_size is 1. That combination seems unlikely to - * be worth providing --- if someone wants a 1/8th-size preview, they probably - * want it quick and dirty, so a context-free upsampler is sufficient. - */ - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_main_controller pub; /* public fields */ - - /* Pointer to allocated workspace (M or M+2 row groups). */ - JSAMPARRAY buffer[MAX_COMPONENTS]; - - boolean buffer_full; /* Have we gotten an iMCU row from decoder? */ - JDIMENSION rowgroup_ctr; /* counts row groups output to postprocessor */ - - /* Remaining fields are only used in the context case. */ - - /* These are the master pointers to the funny-order pointer lists. */ - JSAMPIMAGE xbuffer[2]; /* pointers to weird pointer lists */ - - int whichptr; /* indicates which pointer set is now in use */ - int context_state; /* process_data state machine status */ - JDIMENSION rowgroups_avail; /* row groups available to postprocessor */ - JDIMENSION iMCU_row_ctr; /* counts iMCU rows to detect image top/bot */ -} my_main_controller; - -typedef my_main_controller * my_main_ptr; - -/* context_state values: */ -#define CTX_PREPARE_FOR_IMCU 0 /* need to prepare for MCU row */ -#define CTX_PROCESS_IMCU 1 /* feeding iMCU to postprocessor */ -#define CTX_POSTPONED_ROW 2 /* feeding postponed row group */ - - -/* Forward declarations */ -METHODDEF(void) process_data_simple_main - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -METHODDEF(void) process_data_context_main - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -#ifdef QUANT_2PASS_SUPPORTED -METHODDEF(void) process_data_crank_post - JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)); -#endif - - -LOCAL(void) -alloc_funny_pointers (j_decompress_ptr cinfo) -/* Allocate space for the funny pointer lists. - * This is done only once, not once per pass. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY xbuf; - - /* Get top-level space for component array pointers. - * We alloc both arrays with one call to save a few cycles. - */ - main->xbuffer[0] = (JSAMPIMAGE) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * 2 * SIZEOF(JSAMPARRAY)); - main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - /* Get space for pointer lists --- M+4 row groups in each list. - * We alloc both pointer lists with one call to save a few cycles. - */ - xbuf = (JSAMPARRAY) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - 2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW)); - xbuf += rgroup; /* want one row group at negative offsets */ - main->xbuffer[0][ci] = xbuf; - xbuf += rgroup * (M + 4); - main->xbuffer[1][ci] = xbuf; - } -} - - -LOCAL(void) -make_funny_pointers (j_decompress_ptr cinfo) -/* Create the funny pointer lists discussed in the comments above. - * The actual workspace is already allocated (in main->buffer), - * and the space for the pointer lists is allocated too. - * This routine just fills in the curiously ordered lists. - * This will be repeated at the beginning of each pass. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY buf, xbuf0, xbuf1; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - xbuf0 = main->xbuffer[0][ci]; - xbuf1 = main->xbuffer[1][ci]; - /* First copy the workspace pointers as-is */ - buf = main->buffer[ci]; - for (i = 0; i < rgroup * (M + 2); i++) { - xbuf0[i] = xbuf1[i] = buf[i]; - } - /* In the second list, put the last four row groups in swapped order */ - for (i = 0; i < rgroup * 2; i++) { - xbuf1[rgroup*(M-2) + i] = buf[rgroup*M + i]; - xbuf1[rgroup*M + i] = buf[rgroup*(M-2) + i]; - } - /* The wraparound pointers at top and bottom will be filled later - * (see set_wraparound_pointers, below). Initially we want the "above" - * pointers to duplicate the first actual data line. This only needs - * to happen in xbuffer[0]. - */ - for (i = 0; i < rgroup; i++) { - xbuf0[i - rgroup] = xbuf0[0]; - } - } -} - - -LOCAL(void) -set_wraparound_pointers (j_decompress_ptr cinfo) -/* Set up the "wraparound" pointers at top and bottom of the pointer lists. - * This changes the pointer list state from top-of-image to the normal state. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup; - int M = cinfo->min_DCT_v_scaled_size; - jpeg_component_info *compptr; - JSAMPARRAY xbuf0, xbuf1; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - xbuf0 = main->xbuffer[0][ci]; - xbuf1 = main->xbuffer[1][ci]; - for (i = 0; i < rgroup; i++) { - xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i]; - xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i]; - xbuf0[rgroup*(M+2) + i] = xbuf0[i]; - xbuf1[rgroup*(M+2) + i] = xbuf1[i]; - } - } -} - - -LOCAL(void) -set_bottom_pointers (j_decompress_ptr cinfo) -/* Change the pointer lists to duplicate the last sample row at the bottom - * of the image. whichptr indicates which xbuffer holds the final iMCU row. - * Also sets rowgroups_avail to indicate number of nondummy row groups in row. - */ -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - int ci, i, rgroup, iMCUheight, rows_left; - jpeg_component_info *compptr; - JSAMPARRAY xbuf; - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Count sample rows in one iMCU row and in one row group */ - iMCUheight = compptr->v_samp_factor * compptr->DCT_v_scaled_size; - rgroup = iMCUheight / cinfo->min_DCT_v_scaled_size; - /* Count nondummy sample rows remaining for this component */ - rows_left = (int) (compptr->downsampled_height % (JDIMENSION) iMCUheight); - if (rows_left == 0) rows_left = iMCUheight; - /* Count nondummy row groups. Should get same answer for each component, - * so we need only do it once. - */ - if (ci == 0) { - main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1); - } - /* Duplicate the last real sample row rgroup*2 times; this pads out the - * last partial rowgroup and ensures at least one full rowgroup of context. - */ - xbuf = main->xbuffer[main->whichptr][ci]; - for (i = 0; i < rgroup * 2; i++) { - xbuf[rows_left + i] = xbuf[rows_left-1]; - } - } -} - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (cinfo->upsample->need_context_rows) { - main->pub.process_data = process_data_context_main; - make_funny_pointers(cinfo); /* Create the xbuffer[] lists */ - main->whichptr = 0; /* Read first iMCU row into xbuffer[0] */ - main->context_state = CTX_PREPARE_FOR_IMCU; - main->iMCU_row_ctr = 0; - } else { - /* Simple case with no context needed */ - main->pub.process_data = process_data_simple_main; - } - main->buffer_full = FALSE; /* Mark buffer empty */ - main->rowgroup_ctr = 0; - break; -#ifdef QUANT_2PASS_SUPPORTED - case JBUF_CRANK_DEST: - /* For last pass of 2-pass quantization, just crank the postprocessor */ - main->pub.process_data = process_data_crank_post; - break; -#endif - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } -} - - -/* - * Process some data. - * This handles the simple case where no context is required. - */ - -METHODDEF(void) -process_data_simple_main (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - JDIMENSION rowgroups_avail; - - /* Read input data if we haven't filled the main buffer yet */ - if (! main->buffer_full) { - if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer)) - return; /* suspension forced, can do nothing more */ - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - } - - /* There are always min_DCT_scaled_size row groups in an iMCU row. */ - rowgroups_avail = (JDIMENSION) cinfo->min_DCT_v_scaled_size; - /* Note: at the bottom of the image, we may pass extra garbage row groups - * to the postprocessor. The postprocessor has to check for bottom - * of image anyway (at row resolution), so no point in us doing it too. - */ - - /* Feed the postprocessor */ - (*cinfo->post->post_process_data) (cinfo, main->buffer, - &main->rowgroup_ctr, rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - - /* Has postprocessor consumed all the data yet? If so, mark buffer empty */ - if (main->rowgroup_ctr >= rowgroups_avail) { - main->buffer_full = FALSE; - main->rowgroup_ctr = 0; - } -} - - -/* - * Process some data. - * This handles the case where context rows must be provided. - */ - -METHODDEF(void) -process_data_context_main (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_main_ptr main = (my_main_ptr) cinfo->main; - - /* Read input data if we haven't filled the main buffer yet */ - if (! main->buffer_full) { - if (! (*cinfo->coef->decompress_data) (cinfo, - main->xbuffer[main->whichptr])) - return; /* suspension forced, can do nothing more */ - main->buffer_full = TRUE; /* OK, we have an iMCU row to work with */ - main->iMCU_row_ctr++; /* count rows received */ - } - - /* Postprocessor typically will not swallow all the input data it is handed - * in one call (due to filling the output buffer first). Must be prepared - * to exit and restart. This switch lets us keep track of how far we got. - * Note that each case falls through to the next on successful completion. - */ - switch (main->context_state) { - case CTX_POSTPONED_ROW: - /* Call postprocessor using previously set pointers for postponed row */ - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - &main->rowgroup_ctr, main->rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - if (main->rowgroup_ctr < main->rowgroups_avail) - return; /* Need to suspend */ - main->context_state = CTX_PREPARE_FOR_IMCU; - if (*out_row_ctr >= out_rows_avail) - return; /* Postprocessor exactly filled output buf */ - /*FALLTHROUGH*/ - case CTX_PREPARE_FOR_IMCU: - /* Prepare to process first M-1 row groups of this iMCU row */ - main->rowgroup_ctr = 0; - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size - 1); - /* Check for bottom of image: if so, tweak pointers to "duplicate" - * the last sample row, and adjust rowgroups_avail to ignore padding rows. - */ - if (main->iMCU_row_ctr == cinfo->total_iMCU_rows) - set_bottom_pointers(cinfo); - main->context_state = CTX_PROCESS_IMCU; - /*FALLTHROUGH*/ - case CTX_PROCESS_IMCU: - /* Call postprocessor using previously set pointers */ - (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr], - &main->rowgroup_ctr, main->rowgroups_avail, - output_buf, out_row_ctr, out_rows_avail); - if (main->rowgroup_ctr < main->rowgroups_avail) - return; /* Need to suspend */ - /* After the first iMCU, change wraparound pointers to normal state */ - if (main->iMCU_row_ctr == 1) - set_wraparound_pointers(cinfo); - /* Prepare to load new iMCU row using other xbuffer list */ - main->whichptr ^= 1; /* 0=>1 or 1=>0 */ - main->buffer_full = FALSE; - /* Still need to process last row group of this iMCU row, */ - /* which is saved at index M+1 of the other xbuffer */ - main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 1); - main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_v_scaled_size + 2); - main->context_state = CTX_POSTPONED_ROW; - } -} - - -/* - * Process some data. - * Final pass of two-pass quantization: just call the postprocessor. - * Source data will be the postprocessor controller's internal buffer. - */ - -#ifdef QUANT_2PASS_SUPPORTED - -METHODDEF(void) -process_data_crank_post (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - (*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE) NULL, - (JDIMENSION *) NULL, (JDIMENSION) 0, - output_buf, out_row_ctr, out_rows_avail); -} - -#endif /* QUANT_2PASS_SUPPORTED */ - - -/* - * Initialize main buffer controller. - */ - -GLOBAL(void) -jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_main_ptr main; - int ci, rgroup, ngroups; - jpeg_component_info *compptr; - - main = (my_main_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_main_controller)); - cinfo->main = (struct jpeg_d_main_controller *) main; - main->pub.start_pass = start_pass_main; - - if (need_full_buffer) /* shouldn't happen */ - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - - /* Allocate the workspace. - * ngroups is the number of row groups we need. - */ - if (cinfo->upsample->need_context_rows) { - if (cinfo->min_DCT_v_scaled_size < 2) /* unsupported, see comments above */ - ERREXIT(cinfo, JERR_NOTIMPL); - alloc_funny_pointers(cinfo); /* Alloc space for xbuffer[] lists */ - ngroups = cinfo->min_DCT_v_scaled_size + 2; - } else { - ngroups = cinfo->min_DCT_v_scaled_size; - } - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - rgroup = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; /* height of a row group of component */ - main->buffer[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - compptr->width_in_blocks * compptr->DCT_h_scaled_size, - (JDIMENSION) (rgroup * ngroups)); - } -} diff --git a/jpeg/jdmarker.c b/jpeg/jdmarker.c deleted file mode 100755 index f2a9cc4..0000000 --- a/jpeg/jdmarker.c +++ /dev/null @@ -1,1406 +0,0 @@ -/* - * jdmarker.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to decode JPEG datastream markers. - * Most of the complexity arises from our desire to support input - * suspension: if not all of the data for a marker is available, - * we must exit back to the application. On resumption, we reprocess - * the marker. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -typedef enum { /* JPEG marker codes */ - M_SOF0 = 0xc0, - M_SOF1 = 0xc1, - M_SOF2 = 0xc2, - M_SOF3 = 0xc3, - - M_SOF5 = 0xc5, - M_SOF6 = 0xc6, - M_SOF7 = 0xc7, - - M_JPG = 0xc8, - M_SOF9 = 0xc9, - M_SOF10 = 0xca, - M_SOF11 = 0xcb, - - M_SOF13 = 0xcd, - M_SOF14 = 0xce, - M_SOF15 = 0xcf, - - M_DHT = 0xc4, - - M_DAC = 0xcc, - - M_RST0 = 0xd0, - M_RST1 = 0xd1, - M_RST2 = 0xd2, - M_RST3 = 0xd3, - M_RST4 = 0xd4, - M_RST5 = 0xd5, - M_RST6 = 0xd6, - M_RST7 = 0xd7, - - M_SOI = 0xd8, - M_EOI = 0xd9, - M_SOS = 0xda, - M_DQT = 0xdb, - M_DNL = 0xdc, - M_DRI = 0xdd, - M_DHP = 0xde, - M_EXP = 0xdf, - - M_APP0 = 0xe0, - M_APP1 = 0xe1, - M_APP2 = 0xe2, - M_APP3 = 0xe3, - M_APP4 = 0xe4, - M_APP5 = 0xe5, - M_APP6 = 0xe6, - M_APP7 = 0xe7, - M_APP8 = 0xe8, - M_APP9 = 0xe9, - M_APP10 = 0xea, - M_APP11 = 0xeb, - M_APP12 = 0xec, - M_APP13 = 0xed, - M_APP14 = 0xee, - M_APP15 = 0xef, - - M_JPG0 = 0xf0, - M_JPG13 = 0xfd, - M_COM = 0xfe, - - M_TEM = 0x01, - - M_ERROR = 0x100 -} JPEG_MARKER; - - -/* Private state */ - -typedef struct { - struct jpeg_marker_reader pub; /* public fields */ - - /* Application-overridable marker processing methods */ - jpeg_marker_parser_method process_COM; - jpeg_marker_parser_method process_APPn[16]; - - /* Limit on marker data length to save for each marker type */ - unsigned int length_limit_COM; - unsigned int length_limit_APPn[16]; - - /* Status of COM/APPn marker saving */ - jpeg_saved_marker_ptr cur_marker; /* NULL if not processing a marker */ - unsigned int bytes_read; /* data bytes read so far in marker */ - /* Note: cur_marker is not linked into marker_list until it's all read. */ -} my_marker_reader; - -typedef my_marker_reader * my_marker_ptr; - - -/* - * Macros for fetching data from the data source module. - * - * At all times, cinfo->src->next_input_byte and ->bytes_in_buffer reflect - * the current restart point; we update them only when we have reached a - * suitable place to restart if a suspension occurs. - */ - -/* Declare and initialize local copies of input pointer/count */ -#define INPUT_VARS(cinfo) \ - struct jpeg_source_mgr * datasrc = (cinfo)->src; \ - const JOCTET * next_input_byte = datasrc->next_input_byte; \ - size_t bytes_in_buffer = datasrc->bytes_in_buffer - -/* Unload the local copies --- do this only at a restart boundary */ -#define INPUT_SYNC(cinfo) \ - ( datasrc->next_input_byte = next_input_byte, \ - datasrc->bytes_in_buffer = bytes_in_buffer ) - -/* Reload the local copies --- used only in MAKE_BYTE_AVAIL */ -#define INPUT_RELOAD(cinfo) \ - ( next_input_byte = datasrc->next_input_byte, \ - bytes_in_buffer = datasrc->bytes_in_buffer ) - -/* Internal macro for INPUT_BYTE and INPUT_2BYTES: make a byte available. - * Note we do *not* do INPUT_SYNC before calling fill_input_buffer, - * but we must reload the local copies after a successful fill. - */ -#define MAKE_BYTE_AVAIL(cinfo,action) \ - if (bytes_in_buffer == 0) { \ - if (! (*datasrc->fill_input_buffer) (cinfo)) \ - { action; } \ - INPUT_RELOAD(cinfo); \ - } - -/* Read a byte into variable V. - * If must suspend, take the specified action (typically "return FALSE"). - */ -#define INPUT_BYTE(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V = GETJOCTET(*next_input_byte++); ) - -/* As above, but read two bytes interpreted as an unsigned 16-bit integer. - * V should be declared unsigned int or perhaps INT32. - */ -#define INPUT_2BYTES(cinfo,V,action) \ - MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \ - MAKE_BYTE_AVAIL(cinfo,action); \ - bytes_in_buffer--; \ - V += GETJOCTET(*next_input_byte++); ) - - -/* - * Routines to process JPEG markers. - * - * Entry condition: JPEG marker itself has been read and its code saved - * in cinfo->unread_marker; input restart point is just after the marker. - * - * Exit: if return TRUE, have read and processed any parameters, and have - * updated the restart point to point after the parameters. - * If return FALSE, was forced to suspend before reaching end of - * marker parameters; restart point has not been moved. Same routine - * will be called again after application supplies more input data. - * - * This approach to suspension assumes that all of a marker's parameters - * can fit into a single input bufferload. This should hold for "normal" - * markers. Some COM/APPn markers might have large parameter segments - * that might not fit. If we are simply dropping such a marker, we use - * skip_input_data to get past it, and thereby put the problem on the - * source manager's shoulders. If we are saving the marker's contents - * into memory, we use a slightly different convention: when forced to - * suspend, the marker processor updates the restart point to the end of - * what it's consumed (ie, the end of the buffer) before returning FALSE. - * On resumption, cinfo->unread_marker still contains the marker code, - * but the data source will point to the next chunk of marker data. - * The marker processor must retain internal state to deal with this. - * - * Note that we don't bother to avoid duplicate trace messages if a - * suspension occurs within marker parameters. Other side effects - * require more care. - */ - - -LOCAL(boolean) -get_soi (j_decompress_ptr cinfo) -/* Process an SOI marker */ -{ - int i; - - TRACEMS(cinfo, 1, JTRC_SOI); - - if (cinfo->marker->saw_SOI) - ERREXIT(cinfo, JERR_SOI_DUPLICATE); - - /* Reset all parameters that are defined to be reset by SOI */ - - for (i = 0; i < NUM_ARITH_TBLS; i++) { - cinfo->arith_dc_L[i] = 0; - cinfo->arith_dc_U[i] = 1; - cinfo->arith_ac_K[i] = 5; - } - cinfo->restart_interval = 0; - - /* Set initial assumptions for colorspace etc */ - - cinfo->jpeg_color_space = JCS_UNKNOWN; - cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */ - - cinfo->saw_JFIF_marker = FALSE; - cinfo->JFIF_major_version = 1; /* set default JFIF APP0 values */ - cinfo->JFIF_minor_version = 1; - cinfo->density_unit = 0; - cinfo->X_density = 1; - cinfo->Y_density = 1; - cinfo->saw_Adobe_marker = FALSE; - cinfo->Adobe_transform = 0; - - cinfo->marker->saw_SOI = TRUE; - - return TRUE; -} - - -LOCAL(boolean) -get_sof (j_decompress_ptr cinfo, boolean is_baseline, boolean is_prog, - boolean is_arith) -/* Process a SOFn marker */ -{ - INT32 length; - int c, ci; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - cinfo->is_baseline = is_baseline; - cinfo->progressive_mode = is_prog; - cinfo->arith_code = is_arith; - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, cinfo->data_precision, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_height, return FALSE); - INPUT_2BYTES(cinfo, cinfo->image_width, return FALSE); - INPUT_BYTE(cinfo, cinfo->num_components, return FALSE); - - length -= 8; - - TRACEMS4(cinfo, 1, JTRC_SOF, cinfo->unread_marker, - (int) cinfo->image_width, (int) cinfo->image_height, - cinfo->num_components); - - if (cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOF_DUPLICATE); - - /* We don't support files in which the image height is initially specified */ - /* as 0 and is later redefined by DNL. As long as we have to check that, */ - /* might as well have a general sanity check. */ - if (cinfo->image_height <= 0 || cinfo->image_width <= 0 - || cinfo->num_components <= 0) - ERREXIT(cinfo, JERR_EMPTY_IMAGE); - - if (length != (cinfo->num_components * 3)) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - if (cinfo->comp_info == NULL) /* do only once, even if suspend */ - cinfo->comp_info = (jpeg_component_info *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->num_components * SIZEOF(jpeg_component_info)); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - compptr->component_index = ci; - INPUT_BYTE(cinfo, compptr->component_id, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - compptr->h_samp_factor = (c >> 4) & 15; - compptr->v_samp_factor = (c ) & 15; - INPUT_BYTE(cinfo, compptr->quant_tbl_no, return FALSE); - - TRACEMS4(cinfo, 1, JTRC_SOF_COMPONENT, - compptr->component_id, compptr->h_samp_factor, - compptr->v_samp_factor, compptr->quant_tbl_no); - } - - cinfo->marker->saw_SOF = TRUE; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_sos (j_decompress_ptr cinfo) -/* Process a SOS marker */ -{ - INT32 length; - int i, ci, n, c, cc; - jpeg_component_info * compptr; - INPUT_VARS(cinfo); - - if (! cinfo->marker->saw_SOF) - ERREXIT(cinfo, JERR_SOS_NO_SOF); - - INPUT_2BYTES(cinfo, length, return FALSE); - - INPUT_BYTE(cinfo, n, return FALSE); /* Number of components */ - - TRACEMS1(cinfo, 1, JTRC_SOS, n); - - if (length != (n * 2 + 6) || n > MAX_COMPS_IN_SCAN || - (n == 0 && !cinfo->progressive_mode)) - /* pseudo SOS marker only allowed in progressive mode */ - ERREXIT(cinfo, JERR_BAD_LENGTH); - - cinfo->comps_in_scan = n; - - /* Collect the component-spec parameters */ - - for (i = 0; i < n; i++) { - INPUT_BYTE(cinfo, cc, return FALSE); - INPUT_BYTE(cinfo, c, return FALSE); - - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - if (cc == compptr->component_id) - goto id_found; - } - - ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); - - id_found: - - cinfo->cur_comp_info[i] = compptr; - compptr->dc_tbl_no = (c >> 4) & 15; - compptr->ac_tbl_no = (c ) & 15; - - TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, - compptr->dc_tbl_no, compptr->ac_tbl_no); - } - - /* Collect the additional scan parameters Ss, Se, Ah/Al. */ - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ss = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Se = c; - INPUT_BYTE(cinfo, c, return FALSE); - cinfo->Ah = (c >> 4) & 15; - cinfo->Al = (c ) & 15; - - TRACEMS4(cinfo, 1, JTRC_SOS_PARAMS, cinfo->Ss, cinfo->Se, - cinfo->Ah, cinfo->Al); - - /* Prepare to scan data & restart markers */ - cinfo->marker->next_restart_num = 0; - - /* Count another (non-pseudo) SOS marker */ - if (n) cinfo->input_scan_number++; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -#ifdef D_ARITH_CODING_SUPPORTED - -LOCAL(boolean) -get_dac (j_decompress_ptr cinfo) -/* Process a DAC marker */ -{ - INT32 length; - int index, val; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - INPUT_BYTE(cinfo, index, return FALSE); - INPUT_BYTE(cinfo, val, return FALSE); - - length -= 2; - - TRACEMS2(cinfo, 1, JTRC_DAC, index, val); - - if (index < 0 || index >= (2*NUM_ARITH_TBLS)) - ERREXIT1(cinfo, JERR_DAC_INDEX, index); - - if (index >= NUM_ARITH_TBLS) { /* define AC table */ - cinfo->arith_ac_K[index-NUM_ARITH_TBLS] = (UINT8) val; - } else { /* define DC table */ - cinfo->arith_dc_L[index] = (UINT8) (val & 0x0F); - cinfo->arith_dc_U[index] = (UINT8) (val >> 4); - if (cinfo->arith_dc_L[index] > cinfo->arith_dc_U[index]) - ERREXIT1(cinfo, JERR_DAC_VALUE, val); - } - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - -#else /* ! D_ARITH_CODING_SUPPORTED */ - -#define get_dac(cinfo) skip_variable(cinfo) - -#endif /* D_ARITH_CODING_SUPPORTED */ - - -LOCAL(boolean) -get_dht (j_decompress_ptr cinfo) -/* Process a DHT marker */ -{ - INT32 length; - UINT8 bits[17]; - UINT8 huffval[256]; - int i, index, count; - JHUFF_TBL **htblptr; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 16) { - INPUT_BYTE(cinfo, index, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DHT, index); - - bits[0] = 0; - count = 0; - for (i = 1; i <= 16; i++) { - INPUT_BYTE(cinfo, bits[i], return FALSE); - count += bits[i]; - } - - length -= 1 + 16; - - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[1], bits[2], bits[3], bits[4], - bits[5], bits[6], bits[7], bits[8]); - TRACEMS8(cinfo, 2, JTRC_HUFFBITS, - bits[9], bits[10], bits[11], bits[12], - bits[13], bits[14], bits[15], bits[16]); - - /* Here we just do minimal validation of the counts to avoid walking - * off the end of our table space. jdhuff.c will check more carefully. - */ - if (count > 256 || ((INT32) count) > length) - ERREXIT(cinfo, JERR_BAD_HUFF_TABLE); - - for (i = 0; i < count; i++) - INPUT_BYTE(cinfo, huffval[i], return FALSE); - - length -= count; - - if (index & 0x10) { /* AC table definition */ - index -= 0x10; - htblptr = &cinfo->ac_huff_tbl_ptrs[index]; - } else { /* DC table definition */ - htblptr = &cinfo->dc_huff_tbl_ptrs[index]; - } - - if (index < 0 || index >= NUM_HUFF_TBLS) - ERREXIT1(cinfo, JERR_DHT_INDEX, index); - - if (*htblptr == NULL) - *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo); - - MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits)); - MEMCOPY((*htblptr)->huffval, huffval, SIZEOF((*htblptr)->huffval)); - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_dqt (j_decompress_ptr cinfo) -/* Process a DQT marker */ -{ - INT32 length, count, i; - int n, prec; - unsigned int tmp; - JQUANT_TBL *quant_ptr; - const int *natural_order; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - while (length > 0) { - length--; - INPUT_BYTE(cinfo, n, return FALSE); - prec = n >> 4; - n &= 0x0F; - - TRACEMS2(cinfo, 1, JTRC_DQT, n, prec); - - if (n >= NUM_QUANT_TBLS) - ERREXIT1(cinfo, JERR_DQT_INDEX, n); - - if (cinfo->quant_tbl_ptrs[n] == NULL) - cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo); - quant_ptr = cinfo->quant_tbl_ptrs[n]; - - if (prec) { - if (length < DCTSIZE2 * 2) { - /* Initialize full table for safety. */ - for (i = 0; i < DCTSIZE2; i++) { - quant_ptr->quantval[i] = 1; - } - count = length >> 1; - } else - count = DCTSIZE2; - } else { - if (length < DCTSIZE2) { - /* Initialize full table for safety. */ - for (i = 0; i < DCTSIZE2; i++) { - quant_ptr->quantval[i] = 1; - } - count = length; - } else - count = DCTSIZE2; - } - - switch (count) { - case (2*2): natural_order = jpeg_natural_order2; break; - case (3*3): natural_order = jpeg_natural_order3; break; - case (4*4): natural_order = jpeg_natural_order4; break; - case (5*5): natural_order = jpeg_natural_order5; break; - case (6*6): natural_order = jpeg_natural_order6; break; - case (7*7): natural_order = jpeg_natural_order7; break; - default: natural_order = jpeg_natural_order; break; - } - - for (i = 0; i < count; i++) { - if (prec) - INPUT_2BYTES(cinfo, tmp, return FALSE); - else - INPUT_BYTE(cinfo, tmp, return FALSE); - /* We convert the zigzag-order table to natural array order. */ - quant_ptr->quantval[natural_order[i]] = (UINT16) tmp; - } - - if (cinfo->err->trace_level >= 2) { - for (i = 0; i < DCTSIZE2; i += 8) { - TRACEMS8(cinfo, 2, JTRC_QUANTVALS, - quant_ptr->quantval[i], quant_ptr->quantval[i+1], - quant_ptr->quantval[i+2], quant_ptr->quantval[i+3], - quant_ptr->quantval[i+4], quant_ptr->quantval[i+5], - quant_ptr->quantval[i+6], quant_ptr->quantval[i+7]); - } - } - - length -= count; - if (prec) length -= count; - } - - if (length != 0) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -get_dri (j_decompress_ptr cinfo) -/* Process a DRI marker */ -{ - INT32 length; - unsigned int tmp; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - - if (length != 4) - ERREXIT(cinfo, JERR_BAD_LENGTH); - - INPUT_2BYTES(cinfo, tmp, return FALSE); - - TRACEMS1(cinfo, 1, JTRC_DRI, tmp); - - cinfo->restart_interval = tmp; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -/* - * Routines for processing APPn and COM markers. - * These are either saved in memory or discarded, per application request. - * APP0 and APP14 are specially checked to see if they are - * JFIF and Adobe markers, respectively. - */ - -#define APP0_DATA_LEN 14 /* Length of interesting data in APP0 */ -#define APP14_DATA_LEN 12 /* Length of interesting data in APP14 */ -#define APPN_DATA_LEN 14 /* Must be the largest of the above!! */ - - -LOCAL(void) -examine_app0 (j_decompress_ptr cinfo, JOCTET FAR * data, - unsigned int datalen, INT32 remaining) -/* Examine first few bytes from an APP0. - * Take appropriate action if it is a JFIF marker. - * datalen is # of bytes at data[], remaining is length of rest of marker data. - */ -{ - INT32 totallen = (INT32) datalen + remaining; - - if (datalen >= APP0_DATA_LEN && - GETJOCTET(data[0]) == 0x4A && - GETJOCTET(data[1]) == 0x46 && - GETJOCTET(data[2]) == 0x49 && - GETJOCTET(data[3]) == 0x46 && - GETJOCTET(data[4]) == 0) { - /* Found JFIF APP0 marker: save info */ - cinfo->saw_JFIF_marker = TRUE; - cinfo->JFIF_major_version = GETJOCTET(data[5]); - cinfo->JFIF_minor_version = GETJOCTET(data[6]); - cinfo->density_unit = GETJOCTET(data[7]); - cinfo->X_density = (GETJOCTET(data[8]) << 8) + GETJOCTET(data[9]); - cinfo->Y_density = (GETJOCTET(data[10]) << 8) + GETJOCTET(data[11]); - /* Check version. - * Major version must be 1, anything else signals an incompatible change. - * (We used to treat this as an error, but now it's a nonfatal warning, - * because some bozo at Hijaak couldn't read the spec.) - * Minor version should be 0..2, but process anyway if newer. - */ - if (cinfo->JFIF_major_version != 1) - WARNMS2(cinfo, JWRN_JFIF_MAJOR, - cinfo->JFIF_major_version, cinfo->JFIF_minor_version); - /* Generate trace messages */ - TRACEMS5(cinfo, 1, JTRC_JFIF, - cinfo->JFIF_major_version, cinfo->JFIF_minor_version, - cinfo->X_density, cinfo->Y_density, cinfo->density_unit); - /* Validate thumbnail dimensions and issue appropriate messages */ - if (GETJOCTET(data[12]) | GETJOCTET(data[13])) - TRACEMS2(cinfo, 1, JTRC_JFIF_THUMBNAIL, - GETJOCTET(data[12]), GETJOCTET(data[13])); - totallen -= APP0_DATA_LEN; - if (totallen != - ((INT32)GETJOCTET(data[12]) * (INT32)GETJOCTET(data[13]) * (INT32) 3)) - TRACEMS1(cinfo, 1, JTRC_JFIF_BADTHUMBNAILSIZE, (int) totallen); - } else if (datalen >= 6 && - GETJOCTET(data[0]) == 0x4A && - GETJOCTET(data[1]) == 0x46 && - GETJOCTET(data[2]) == 0x58 && - GETJOCTET(data[3]) == 0x58 && - GETJOCTET(data[4]) == 0) { - /* Found JFIF "JFXX" extension APP0 marker */ - /* The library doesn't actually do anything with these, - * but we try to produce a helpful trace message. - */ - switch (GETJOCTET(data[5])) { - case 0x10: - TRACEMS1(cinfo, 1, JTRC_THUMB_JPEG, (int) totallen); - break; - case 0x11: - TRACEMS1(cinfo, 1, JTRC_THUMB_PALETTE, (int) totallen); - break; - case 0x13: - TRACEMS1(cinfo, 1, JTRC_THUMB_RGB, (int) totallen); - break; - default: - TRACEMS2(cinfo, 1, JTRC_JFIF_EXTENSION, - GETJOCTET(data[5]), (int) totallen); - break; - } - } else { - /* Start of APP0 does not match "JFIF" or "JFXX", or too short */ - TRACEMS1(cinfo, 1, JTRC_APP0, (int) totallen); - } -} - - -LOCAL(void) -examine_app14 (j_decompress_ptr cinfo, JOCTET FAR * data, - unsigned int datalen, INT32 remaining) -/* Examine first few bytes from an APP14. - * Take appropriate action if it is an Adobe marker. - * datalen is # of bytes at data[], remaining is length of rest of marker data. - */ -{ - unsigned int version, flags0, flags1, transform; - - if (datalen >= APP14_DATA_LEN && - GETJOCTET(data[0]) == 0x41 && - GETJOCTET(data[1]) == 0x64 && - GETJOCTET(data[2]) == 0x6F && - GETJOCTET(data[3]) == 0x62 && - GETJOCTET(data[4]) == 0x65) { - /* Found Adobe APP14 marker */ - version = (GETJOCTET(data[5]) << 8) + GETJOCTET(data[6]); - flags0 = (GETJOCTET(data[7]) << 8) + GETJOCTET(data[8]); - flags1 = (GETJOCTET(data[9]) << 8) + GETJOCTET(data[10]); - transform = GETJOCTET(data[11]); - TRACEMS4(cinfo, 1, JTRC_ADOBE, version, flags0, flags1, transform); - cinfo->saw_Adobe_marker = TRUE; - cinfo->Adobe_transform = (UINT8) transform; - } else { - /* Start of APP14 does not match "Adobe", or too short */ - TRACEMS1(cinfo, 1, JTRC_APP14, (int) (datalen + remaining)); - } -} - - -METHODDEF(boolean) -get_interesting_appn (j_decompress_ptr cinfo) -/* Process an APP0 or APP14 marker without saving it */ -{ - INT32 length; - JOCTET b[APPN_DATA_LEN]; - unsigned int i, numtoread; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - /* get the interesting part of the marker data */ - if (length >= APPN_DATA_LEN) - numtoread = APPN_DATA_LEN; - else if (length > 0) - numtoread = (unsigned int) length; - else - numtoread = 0; - for (i = 0; i < numtoread; i++) - INPUT_BYTE(cinfo, b[i], return FALSE); - length -= numtoread; - - /* process it */ - switch (cinfo->unread_marker) { - case M_APP0: - examine_app0(cinfo, (JOCTET FAR *) b, numtoread, length); - break; - case M_APP14: - examine_app14(cinfo, (JOCTET FAR *) b, numtoread, length); - break; - default: - /* can't get here unless jpeg_save_markers chooses wrong processor */ - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); - break; - } - - /* skip any remaining data -- could be lots */ - INPUT_SYNC(cinfo); - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -#ifdef SAVE_MARKERS_SUPPORTED - -METHODDEF(boolean) -save_marker (j_decompress_ptr cinfo) -/* Save an APPn or COM marker into the marker list */ -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - jpeg_saved_marker_ptr cur_marker = marker->cur_marker; - unsigned int bytes_read, data_length; - JOCTET FAR * data; - INT32 length = 0; - INPUT_VARS(cinfo); - - if (cur_marker == NULL) { - /* begin reading a marker */ - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - if (length >= 0) { /* watch out for bogus length word */ - /* figure out how much we want to save */ - unsigned int limit; - if (cinfo->unread_marker == (int) M_COM) - limit = marker->length_limit_COM; - else - limit = marker->length_limit_APPn[cinfo->unread_marker - (int) M_APP0]; - if ((unsigned int) length < limit) - limit = (unsigned int) length; - /* allocate and initialize the marker item */ - cur_marker = (jpeg_saved_marker_ptr) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(struct jpeg_marker_struct) + limit); - cur_marker->next = NULL; - cur_marker->marker = (UINT8) cinfo->unread_marker; - cur_marker->original_length = (unsigned int) length; - cur_marker->data_length = limit; - /* data area is just beyond the jpeg_marker_struct */ - data = cur_marker->data = (JOCTET FAR *) (cur_marker + 1); - marker->cur_marker = cur_marker; - marker->bytes_read = 0; - bytes_read = 0; - data_length = limit; - } else { - /* deal with bogus length word */ - bytes_read = data_length = 0; - data = NULL; - } - } else { - /* resume reading a marker */ - bytes_read = marker->bytes_read; - data_length = cur_marker->data_length; - data = cur_marker->data + bytes_read; - } - - while (bytes_read < data_length) { - INPUT_SYNC(cinfo); /* move the restart point to here */ - marker->bytes_read = bytes_read; - /* If there's not at least one byte in buffer, suspend */ - MAKE_BYTE_AVAIL(cinfo, return FALSE); - /* Copy bytes with reasonable rapidity */ - while (bytes_read < data_length && bytes_in_buffer > 0) { - *data++ = *next_input_byte++; - bytes_in_buffer--; - bytes_read++; - } - } - - /* Done reading what we want to read */ - if (cur_marker != NULL) { /* will be NULL if bogus length word */ - /* Add new marker to end of list */ - if (cinfo->marker_list == NULL) { - cinfo->marker_list = cur_marker; - } else { - jpeg_saved_marker_ptr prev = cinfo->marker_list; - while (prev->next != NULL) - prev = prev->next; - prev->next = cur_marker; - } - /* Reset pointer & calc remaining data length */ - data = cur_marker->data; - length = cur_marker->original_length - data_length; - } - /* Reset to initial state for next marker */ - marker->cur_marker = NULL; - - /* Process the marker if interesting; else just make a generic trace msg */ - switch (cinfo->unread_marker) { - case M_APP0: - examine_app0(cinfo, data, data_length, length); - break; - case M_APP14: - examine_app14(cinfo, data, data_length, length); - break; - default: - TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, - (int) (data_length + length)); - break; - } - - /* skip any remaining data -- could be lots */ - INPUT_SYNC(cinfo); /* do before skip_input_data */ - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - -#endif /* SAVE_MARKERS_SUPPORTED */ - - -METHODDEF(boolean) -skip_variable (j_decompress_ptr cinfo) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - INT32 length; - INPUT_VARS(cinfo); - - INPUT_2BYTES(cinfo, length, return FALSE); - length -= 2; - - TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length); - - INPUT_SYNC(cinfo); /* do before skip_input_data */ - if (length > 0) - (*cinfo->src->skip_input_data) (cinfo, (long) length); - - return TRUE; -} - - -/* - * Find the next JPEG marker, save it in cinfo->unread_marker. - * Returns FALSE if had to suspend before reaching a marker; - * in that case cinfo->unread_marker is unchanged. - * - * Note that the result might not be a valid marker code, - * but it will never be 0 or FF. - */ - -LOCAL(boolean) -next_marker (j_decompress_ptr cinfo) -{ - int c; - INPUT_VARS(cinfo); - - for (;;) { - INPUT_BYTE(cinfo, c, return FALSE); - /* Skip any non-FF bytes. - * This may look a bit inefficient, but it will not occur in a valid file. - * We sync after each discarded byte so that a suspending data source - * can discard the byte from its buffer. - */ - while (c != 0xFF) { - cinfo->marker->discarded_bytes++; - INPUT_SYNC(cinfo); - INPUT_BYTE(cinfo, c, return FALSE); - } - /* This loop swallows any duplicate FF bytes. Extra FFs are legal as - * pad bytes, so don't count them in discarded_bytes. We assume there - * will not be so many consecutive FF bytes as to overflow a suspending - * data source's input buffer. - */ - do { - INPUT_BYTE(cinfo, c, return FALSE); - } while (c == 0xFF); - if (c != 0) - break; /* found a valid marker, exit loop */ - /* Reach here if we found a stuffed-zero data sequence (FF/00). - * Discard it and loop back to try again. - */ - cinfo->marker->discarded_bytes += 2; - INPUT_SYNC(cinfo); - } - - if (cinfo->marker->discarded_bytes != 0) { - WARNMS2(cinfo, JWRN_EXTRANEOUS_DATA, cinfo->marker->discarded_bytes, c); - cinfo->marker->discarded_bytes = 0; - } - - cinfo->unread_marker = c; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -LOCAL(boolean) -first_marker (j_decompress_ptr cinfo) -/* Like next_marker, but used to obtain the initial SOI marker. */ -/* For this marker, we do not allow preceding garbage or fill; otherwise, - * we might well scan an entire input file before realizing it ain't JPEG. - * If an application wants to process non-JFIF files, it must seek to the - * SOI before calling the JPEG library. - */ -{ - int c, c2; - INPUT_VARS(cinfo); - - INPUT_BYTE(cinfo, c, return FALSE); - INPUT_BYTE(cinfo, c2, return FALSE); - if (c != 0xFF || c2 != (int) M_SOI) - ERREXIT2(cinfo, JERR_NO_SOI, c, c2); - - cinfo->unread_marker = c2; - - INPUT_SYNC(cinfo); - return TRUE; -} - - -/* - * Read markers until SOS or EOI. - * - * Returns same codes as are defined for jpeg_consume_input: - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - * - * Note: This function may return a pseudo SOS marker (with zero - * component number) for treat by input controller's consume_input. - * consume_input itself should filter out (skip) the pseudo marker - * after processing for the caller. - */ - -METHODDEF(int) -read_markers (j_decompress_ptr cinfo) -{ - /* Outer loop repeats once for each marker. */ - for (;;) { - /* Collect the marker proper, unless we already did. */ - /* NB: first_marker() enforces the requirement that SOI appear first. */ - if (cinfo->unread_marker == 0) { - if (! cinfo->marker->saw_SOI) { - if (! first_marker(cinfo)) - return JPEG_SUSPENDED; - } else { - if (! next_marker(cinfo)) - return JPEG_SUSPENDED; - } - } - /* At this point cinfo->unread_marker contains the marker code and the - * input point is just past the marker proper, but before any parameters. - * A suspension will cause us to return with this state still true. - */ - switch (cinfo->unread_marker) { - case M_SOI: - if (! get_soi(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_SOF0: /* Baseline */ - if (! get_sof(cinfo, TRUE, FALSE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF1: /* Extended sequential, Huffman */ - if (! get_sof(cinfo, FALSE, FALSE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF2: /* Progressive, Huffman */ - if (! get_sof(cinfo, FALSE, TRUE, FALSE)) - return JPEG_SUSPENDED; - break; - - case M_SOF9: /* Extended sequential, arithmetic */ - if (! get_sof(cinfo, FALSE, FALSE, TRUE)) - return JPEG_SUSPENDED; - break; - - case M_SOF10: /* Progressive, arithmetic */ - if (! get_sof(cinfo, FALSE, TRUE, TRUE)) - return JPEG_SUSPENDED; - break; - - /* Currently unsupported SOFn types */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_JPG: /* Reserved for JPEG extensions */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - ERREXIT1(cinfo, JERR_SOF_UNSUPPORTED, cinfo->unread_marker); - break; - - case M_SOS: - if (! get_sos(cinfo)) - return JPEG_SUSPENDED; - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_SOS; - - case M_EOI: - TRACEMS(cinfo, 1, JTRC_EOI); - cinfo->unread_marker = 0; /* processed the marker */ - return JPEG_REACHED_EOI; - - case M_DAC: - if (! get_dac(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DHT: - if (! get_dht(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DQT: - if (! get_dqt(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_DRI: - if (! get_dri(cinfo)) - return JPEG_SUSPENDED; - break; - - case M_APP0: - case M_APP1: - case M_APP2: - case M_APP3: - case M_APP4: - case M_APP5: - case M_APP6: - case M_APP7: - case M_APP8: - case M_APP9: - case M_APP10: - case M_APP11: - case M_APP12: - case M_APP13: - case M_APP14: - case M_APP15: - if (! (*((my_marker_ptr) cinfo->marker)->process_APPn[ - cinfo->unread_marker - (int) M_APP0]) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_COM: - if (! (*((my_marker_ptr) cinfo->marker)->process_COM) (cinfo)) - return JPEG_SUSPENDED; - break; - - case M_RST0: /* these are all parameterless */ - case M_RST1: - case M_RST2: - case M_RST3: - case M_RST4: - case M_RST5: - case M_RST6: - case M_RST7: - case M_TEM: - TRACEMS1(cinfo, 1, JTRC_PARMLESS_MARKER, cinfo->unread_marker); - break; - - case M_DNL: /* Ignore DNL ... perhaps the wrong thing */ - if (! skip_variable(cinfo)) - return JPEG_SUSPENDED; - break; - - default: /* must be DHP, EXP, JPGn, or RESn */ - /* For now, we treat the reserved markers as fatal errors since they are - * likely to be used to signal incompatible JPEG Part 3 extensions. - * Once the JPEG 3 version-number marker is well defined, this code - * ought to change! - */ - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker); - break; - } - /* Successfully processed marker, so reset state variable */ - cinfo->unread_marker = 0; - } /* end loop */ -} - - -/* - * Read a restart marker, which is expected to appear next in the datastream; - * if the marker is not there, take appropriate recovery action. - * Returns FALSE if suspension is required. - * - * This is called by the entropy decoder after it has read an appropriate - * number of MCUs. cinfo->unread_marker may be nonzero if the entropy decoder - * has already read a marker from the data source. Under normal conditions - * cinfo->unread_marker will be reset to 0 before returning; if not reset, - * it holds a marker which the decoder will be unable to read past. - */ - -METHODDEF(boolean) -read_restart_marker (j_decompress_ptr cinfo) -{ - /* Obtain a marker unless we already did. */ - /* Note that next_marker will complain if it skips any data. */ - if (cinfo->unread_marker == 0) { - if (! next_marker(cinfo)) - return FALSE; - } - - if (cinfo->unread_marker == - ((int) M_RST0 + cinfo->marker->next_restart_num)) { - /* Normal case --- swallow the marker and let entropy decoder continue */ - TRACEMS1(cinfo, 3, JTRC_RST, cinfo->marker->next_restart_num); - cinfo->unread_marker = 0; - } else { - /* Uh-oh, the restart markers have been messed up. */ - /* Let the data source manager determine how to resync. */ - if (! (*cinfo->src->resync_to_restart) (cinfo, - cinfo->marker->next_restart_num)) - return FALSE; - } - - /* Update next-restart state */ - cinfo->marker->next_restart_num = (cinfo->marker->next_restart_num + 1) & 7; - - return TRUE; -} - - -/* - * This is the default resync_to_restart method for data source managers - * to use if they don't have any better approach. Some data source managers - * may be able to back up, or may have additional knowledge about the data - * which permits a more intelligent recovery strategy; such managers would - * presumably supply their own resync method. - * - * read_restart_marker calls resync_to_restart if it finds a marker other than - * the restart marker it was expecting. (This code is *not* used unless - * a nonzero restart interval has been declared.) cinfo->unread_marker is - * the marker code actually found (might be anything, except 0 or FF). - * The desired restart marker number (0..7) is passed as a parameter. - * This routine is supposed to apply whatever error recovery strategy seems - * appropriate in order to position the input stream to the next data segment. - * Note that cinfo->unread_marker is treated as a marker appearing before - * the current data-source input point; usually it should be reset to zero - * before returning. - * Returns FALSE if suspension is required. - * - * This implementation is substantially constrained by wanting to treat the - * input as a data stream; this means we can't back up. Therefore, we have - * only the following actions to work with: - * 1. Simply discard the marker and let the entropy decoder resume at next - * byte of file. - * 2. Read forward until we find another marker, discarding intervening - * data. (In theory we could look ahead within the current bufferload, - * without having to discard data if we don't find the desired marker. - * This idea is not implemented here, in part because it makes behavior - * dependent on buffer size and chance buffer-boundary positions.) - * 3. Leave the marker unread (by failing to zero cinfo->unread_marker). - * This will cause the entropy decoder to process an empty data segment, - * inserting dummy zeroes, and then we will reprocess the marker. - * - * #2 is appropriate if we think the desired marker lies ahead, while #3 is - * appropriate if the found marker is a future restart marker (indicating - * that we have missed the desired restart marker, probably because it got - * corrupted). - * We apply #2 or #3 if the found marker is a restart marker no more than - * two counts behind or ahead of the expected one. We also apply #2 if the - * found marker is not a legal JPEG marker code (it's certainly bogus data). - * If the found marker is a restart marker more than 2 counts away, we do #1 - * (too much risk that the marker is erroneous; with luck we will be able to - * resync at some future point). - * For any valid non-restart JPEG marker, we apply #3. This keeps us from - * overrunning the end of a scan. An implementation limited to single-scan - * files might find it better to apply #2 for markers other than EOI, since - * any other marker would have to be bogus data in that case. - */ - -GLOBAL(boolean) -jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired) -{ - int marker = cinfo->unread_marker; - int action = 1; - - /* Always put up a warning. */ - WARNMS2(cinfo, JWRN_MUST_RESYNC, marker, desired); - - /* Outer loop handles repeated decision after scanning forward. */ - for (;;) { - if (marker < (int) M_SOF0) - action = 2; /* invalid marker */ - else if (marker < (int) M_RST0 || marker > (int) M_RST7) - action = 3; /* valid non-restart marker */ - else { - if (marker == ((int) M_RST0 + ((desired+1) & 7)) || - marker == ((int) M_RST0 + ((desired+2) & 7))) - action = 3; /* one of the next two expected restarts */ - else if (marker == ((int) M_RST0 + ((desired-1) & 7)) || - marker == ((int) M_RST0 + ((desired-2) & 7))) - action = 2; /* a prior restart, so advance */ - else - action = 1; /* desired restart or too far away */ - } - TRACEMS2(cinfo, 4, JTRC_RECOVERY_ACTION, marker, action); - switch (action) { - case 1: - /* Discard marker and let entropy decoder resume processing. */ - cinfo->unread_marker = 0; - return TRUE; - case 2: - /* Scan to the next marker, and repeat the decision loop. */ - if (! next_marker(cinfo)) - return FALSE; - marker = cinfo->unread_marker; - break; - case 3: - /* Return without advancing past this marker. */ - /* Entropy decoder will be forced to process an empty segment. */ - return TRUE; - } - } /* end loop */ -} - - -/* - * Reset marker processing state to begin a fresh datastream. - */ - -METHODDEF(void) -reset_marker_reader (j_decompress_ptr cinfo) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - cinfo->comp_info = NULL; /* until allocated by get_sof */ - cinfo->input_scan_number = 0; /* no SOS seen yet */ - cinfo->unread_marker = 0; /* no pending marker */ - marker->pub.saw_SOI = FALSE; /* set internal state too */ - marker->pub.saw_SOF = FALSE; - marker->pub.discarded_bytes = 0; - marker->cur_marker = NULL; -} - - -/* - * Initialize the marker reader module. - * This is called only once, when the decompression object is created. - */ - -GLOBAL(void) -jinit_marker_reader (j_decompress_ptr cinfo) -{ - my_marker_ptr marker; - int i; - - /* Create subobject in permanent pool */ - marker = (my_marker_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, - SIZEOF(my_marker_reader)); - cinfo->marker = (struct jpeg_marker_reader *) marker; - /* Initialize public method pointers */ - marker->pub.reset_marker_reader = reset_marker_reader; - marker->pub.read_markers = read_markers; - marker->pub.read_restart_marker = read_restart_marker; - /* Initialize COM/APPn processing. - * By default, we examine and then discard APP0 and APP14, - * but simply discard COM and all other APPn. - */ - marker->process_COM = skip_variable; - marker->length_limit_COM = 0; - for (i = 0; i < 16; i++) { - marker->process_APPn[i] = skip_variable; - marker->length_limit_APPn[i] = 0; - } - marker->process_APPn[0] = get_interesting_appn; - marker->process_APPn[14] = get_interesting_appn; - /* Reset marker processing state */ - reset_marker_reader(cinfo); -} - - -/* - * Control saving of COM and APPn markers into marker_list. - */ - -#ifdef SAVE_MARKERS_SUPPORTED - -GLOBAL(void) -jpeg_save_markers (j_decompress_ptr cinfo, int marker_code, - unsigned int length_limit) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - long maxlength; - jpeg_marker_parser_method processor; - - /* Length limit mustn't be larger than what we can allocate - * (should only be a concern in a 16-bit environment). - */ - maxlength = cinfo->mem->max_alloc_chunk - SIZEOF(struct jpeg_marker_struct); - if (((long) length_limit) > maxlength) - length_limit = (unsigned int) maxlength; - - /* Choose processor routine to use. - * APP0/APP14 have special requirements. - */ - if (length_limit) { - processor = save_marker; - /* If saving APP0/APP14, save at least enough for our internal use. */ - if (marker_code == (int) M_APP0 && length_limit < APP0_DATA_LEN) - length_limit = APP0_DATA_LEN; - else if (marker_code == (int) M_APP14 && length_limit < APP14_DATA_LEN) - length_limit = APP14_DATA_LEN; - } else { - processor = skip_variable; - /* If discarding APP0/APP14, use our regular on-the-fly processor. */ - if (marker_code == (int) M_APP0 || marker_code == (int) M_APP14) - processor = get_interesting_appn; - } - - if (marker_code == (int) M_COM) { - marker->process_COM = processor; - marker->length_limit_COM = length_limit; - } else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) { - marker->process_APPn[marker_code - (int) M_APP0] = processor; - marker->length_limit_APPn[marker_code - (int) M_APP0] = length_limit; - } else - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); -} - -#endif /* SAVE_MARKERS_SUPPORTED */ - - -/* - * Install a special processing method for COM or APPn markers. - */ - -GLOBAL(void) -jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code, - jpeg_marker_parser_method routine) -{ - my_marker_ptr marker = (my_marker_ptr) cinfo->marker; - - if (marker_code == (int) M_COM) - marker->process_COM = routine; - else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) - marker->process_APPn[marker_code - (int) M_APP0] = routine; - else - ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code); -} diff --git a/jpeg/jdmaster.c b/jpeg/jdmaster.c deleted file mode 100755 index fef72a2..0000000 --- a/jpeg/jdmaster.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - * jdmaster.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains master control logic for the JPEG decompressor. - * These routines are concerned with selecting the modules to be executed - * and with determining the number of passes and the work to be done in each - * pass. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private state */ - -typedef struct { - struct jpeg_decomp_master pub; /* public fields */ - - int pass_number; /* # of passes completed */ - - boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */ - - /* Saved references to initialized quantizer modules, - * in case we need to switch modes. - */ - struct jpeg_color_quantizer * quantizer_1pass; - struct jpeg_color_quantizer * quantizer_2pass; -} my_decomp_master; - -typedef my_decomp_master * my_master_ptr; - - -/* - * Determine whether merged upsample/color conversion should be used. - * CRUCIAL: this must match the actual capabilities of jdmerge.c! - */ - -LOCAL(boolean) -use_merged_upsample (j_decompress_ptr cinfo) -{ -#ifdef UPSAMPLE_MERGING_SUPPORTED - /* Merging is the equivalent of plain box-filter upsampling */ - if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling) - return FALSE; - /* jdmerge.c only supports YCC=>RGB color conversion */ - if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 || - cinfo->out_color_space != JCS_RGB || - cinfo->out_color_components != RGB_PIXELSIZE) - return FALSE; - /* and it only handles 2h1v or 2h2v sampling ratios */ - if (cinfo->comp_info[0].h_samp_factor != 2 || - cinfo->comp_info[1].h_samp_factor != 1 || - cinfo->comp_info[2].h_samp_factor != 1 || - cinfo->comp_info[0].v_samp_factor > 2 || - cinfo->comp_info[1].v_samp_factor != 1 || - cinfo->comp_info[2].v_samp_factor != 1) - return FALSE; - /* furthermore, it doesn't work if we've scaled the IDCTs differently */ - if (cinfo->comp_info[0].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[1].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[2].DCT_h_scaled_size != cinfo->min_DCT_h_scaled_size || - cinfo->comp_info[0].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || - cinfo->comp_info[1].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size || - cinfo->comp_info[2].DCT_v_scaled_size != cinfo->min_DCT_v_scaled_size) - return FALSE; - /* ??? also need to test for upsample-time rescaling, when & if supported */ - return TRUE; /* by golly, it'll work... */ -#else - return FALSE; -#endif -} - - -/* - * Compute output image dimensions and related values. - * NOTE: this is exported for possible use by application. - * Hence it mustn't do anything that can't be done twice. - * Also note that it may be called before the master module is initialized! - */ - -GLOBAL(void) -jpeg_calc_output_dimensions (j_decompress_ptr cinfo) -/* Do computations that are needed before master selection phase. - * This function is used for full decompression. - */ -{ -#ifdef IDCT_SCALING_SUPPORTED - int ci; - jpeg_component_info *compptr; -#endif - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_READY) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - /* Compute core output image dimensions and DCT scaling choices. */ - jpeg_core_output_dimensions(cinfo); - -#ifdef IDCT_SCALING_SUPPORTED - - /* In selecting the actual DCT scaling for each component, we try to - * scale up the chroma components via IDCT scaling rather than upsampling. - * This saves time if the upsampler gets to use 1:1 scaling. - * Note this code adapts subsampling ratios which are powers of 2. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - int ssize = 1; - while (cinfo->min_DCT_h_scaled_size * ssize <= - (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_h_samp_factor % (compptr->h_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } - compptr->DCT_h_scaled_size = cinfo->min_DCT_h_scaled_size * ssize; - ssize = 1; - while (cinfo->min_DCT_v_scaled_size * ssize <= - (cinfo->do_fancy_upsampling ? DCTSIZE : DCTSIZE / 2) && - (cinfo->max_v_samp_factor % (compptr->v_samp_factor * ssize * 2)) == 0) { - ssize = ssize * 2; - } - compptr->DCT_v_scaled_size = cinfo->min_DCT_v_scaled_size * ssize; - - /* We don't support IDCT ratios larger than 2. */ - if (compptr->DCT_h_scaled_size > compptr->DCT_v_scaled_size * 2) - compptr->DCT_h_scaled_size = compptr->DCT_v_scaled_size * 2; - else if (compptr->DCT_v_scaled_size > compptr->DCT_h_scaled_size * 2) - compptr->DCT_v_scaled_size = compptr->DCT_h_scaled_size * 2; - } - - /* Recompute downsampled dimensions of components; - * application needs to know these if using raw downsampled data. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Size in samples, after IDCT scaling */ - compptr->downsampled_width = (JDIMENSION) - jdiv_round_up((long) cinfo->image_width * - (long) (compptr->h_samp_factor * compptr->DCT_h_scaled_size), - (long) (cinfo->max_h_samp_factor * cinfo->block_size)); - compptr->downsampled_height = (JDIMENSION) - jdiv_round_up((long) cinfo->image_height * - (long) (compptr->v_samp_factor * compptr->DCT_v_scaled_size), - (long) (cinfo->max_v_samp_factor * cinfo->block_size)); - } - -#endif /* IDCT_SCALING_SUPPORTED */ - - /* Report number of components in selected colorspace. */ - /* Probably this should be in the color conversion module... */ - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - cinfo->out_color_components = 1; - break; - case JCS_RGB: - cinfo->out_color_components = RGB_PIXELSIZE; - break; - case JCS_YCbCr: - cinfo->out_color_components = 3; - break; - case JCS_CMYK: - case JCS_YCCK: - cinfo->out_color_components = 4; - break; - default: /* else must be same colorspace as in file */ - cinfo->out_color_components = cinfo->num_components; - break; - } - cinfo->output_components = (cinfo->quantize_colors ? 1 : - cinfo->out_color_components); - - /* See if upsampler will want to emit more than one row at a time */ - if (use_merged_upsample(cinfo)) - cinfo->rec_outbuf_height = cinfo->max_v_samp_factor; - else - cinfo->rec_outbuf_height = 1; -} - - -/* - * Several decompression processes need to range-limit values to the range - * 0..MAXJSAMPLE; the input value may fall somewhat outside this range - * due to noise introduced by quantization, roundoff error, etc. These - * processes are inner loops and need to be as fast as possible. On most - * machines, particularly CPUs with pipelines or instruction prefetch, - * a (subscript-check-less) C table lookup - * x = sample_range_limit[x]; - * is faster than explicit tests - * if (x < 0) x = 0; - * else if (x > MAXJSAMPLE) x = MAXJSAMPLE; - * These processes all use a common table prepared by the routine below. - * - * For most steps we can mathematically guarantee that the initial value - * of x is within MAXJSAMPLE+1 of the legal range, so a table running from - * -(MAXJSAMPLE+1) to 2*MAXJSAMPLE+1 is sufficient. But for the initial - * limiting step (just after the IDCT), a wildly out-of-range value is - * possible if the input data is corrupt. To avoid any chance of indexing - * off the end of memory and getting a bad-pointer trap, we perform the - * post-IDCT limiting thus: - * x = range_limit[x & MASK]; - * where MASK is 2 bits wider than legal sample data, ie 10 bits for 8-bit - * samples. Under normal circumstances this is more than enough range and - * a correct output will be generated; with bogus input data the mask will - * cause wraparound, and we will safely generate a bogus-but-in-range output. - * For the post-IDCT step, we want to convert the data from signed to unsigned - * representation by adding CENTERJSAMPLE at the same time that we limit it. - * So the post-IDCT limiting table ends up looking like this: - * CENTERJSAMPLE,CENTERJSAMPLE+1,...,MAXJSAMPLE, - * MAXJSAMPLE (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0 (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times), - * 0,1,...,CENTERJSAMPLE-1 - * Negative inputs select values from the upper half of the table after - * masking. - * - * We can save some space by overlapping the start of the post-IDCT table - * with the simpler range limiting table. The post-IDCT table begins at - * sample_range_limit + CENTERJSAMPLE. - * - * Note that the table is allocated in near data space on PCs; it's small - * enough and used often enough to justify this. - */ - -LOCAL(void) -prepare_range_limit_table (j_decompress_ptr cinfo) -/* Allocate and fill in the sample_range_limit table */ -{ - JSAMPLE * table; - int i; - - table = (JSAMPLE *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - table += (MAXJSAMPLE+1); /* allow negative subscripts of simple table */ - cinfo->sample_range_limit = table; - /* First segment of "simple" table: limit[x] = 0 for x < 0 */ - MEMZERO(table - (MAXJSAMPLE+1), (MAXJSAMPLE+1) * SIZEOF(JSAMPLE)); - /* Main part of "simple" table: limit[x] = x */ - for (i = 0; i <= MAXJSAMPLE; i++) - table[i] = (JSAMPLE) i; - table += CENTERJSAMPLE; /* Point to where post-IDCT table starts */ - /* End of simple table, rest of first half of post-IDCT table */ - for (i = CENTERJSAMPLE; i < 2*(MAXJSAMPLE+1); i++) - table[i] = MAXJSAMPLE; - /* Second half of post-IDCT table */ - MEMZERO(table + (2 * (MAXJSAMPLE+1)), - (2 * (MAXJSAMPLE+1) - CENTERJSAMPLE) * SIZEOF(JSAMPLE)); - MEMCOPY(table + (4 * (MAXJSAMPLE+1) - CENTERJSAMPLE), - cinfo->sample_range_limit, CENTERJSAMPLE * SIZEOF(JSAMPLE)); -} - - -/* - * Master selection of decompression modules. - * This is done once at jpeg_start_decompress time. We determine - * which modules will be used and give them appropriate initialization calls. - * We also initialize the decompressor input side to begin consuming data. - * - * Since jpeg_read_header has finished, we know what is in the SOF - * and (first) SOS markers. We also have all the application parameter - * settings. - */ - -LOCAL(void) -master_selection (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - boolean use_c_buffer; - long samplesperrow; - JDIMENSION jd_samplesperrow; - - /* Initialize dimensions and other stuff */ - jpeg_calc_output_dimensions(cinfo); - prepare_range_limit_table(cinfo); - - /* Width of an output scanline must be representable as JDIMENSION. */ - samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components; - jd_samplesperrow = (JDIMENSION) samplesperrow; - if ((long) jd_samplesperrow != samplesperrow) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - - /* Initialize my private state */ - master->pass_number = 0; - master->using_merged_upsample = use_merged_upsample(cinfo); - - /* Color quantizer selection */ - master->quantizer_1pass = NULL; - master->quantizer_2pass = NULL; - /* No mode changes if not using buffered-image mode. */ - if (! cinfo->quantize_colors || ! cinfo->buffered_image) { - cinfo->enable_1pass_quant = FALSE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - } - if (cinfo->quantize_colors) { - if (cinfo->raw_data_out) - ERREXIT(cinfo, JERR_NOTIMPL); - /* 2-pass quantizer only works in 3-component color space. */ - if (cinfo->out_color_components != 3) { - cinfo->enable_1pass_quant = TRUE; - cinfo->enable_external_quant = FALSE; - cinfo->enable_2pass_quant = FALSE; - cinfo->colormap = NULL; - } else if (cinfo->colormap != NULL) { - cinfo->enable_external_quant = TRUE; - } else if (cinfo->two_pass_quantize) { - cinfo->enable_2pass_quant = TRUE; - } else { - cinfo->enable_1pass_quant = TRUE; - } - - if (cinfo->enable_1pass_quant) { -#ifdef QUANT_1PASS_SUPPORTED - jinit_1pass_quantizer(cinfo); - master->quantizer_1pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - - /* We use the 2-pass code to map to external colormaps. */ - if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) { -#ifdef QUANT_2PASS_SUPPORTED - jinit_2pass_quantizer(cinfo); - master->quantizer_2pass = cinfo->cquantize; -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } - /* If both quantizers are initialized, the 2-pass one is left active; - * this is necessary for starting with quantization to an external map. - */ - } - - /* Post-processing: in particular, color conversion first */ - if (! cinfo->raw_data_out) { - if (master->using_merged_upsample) { -#ifdef UPSAMPLE_MERGING_SUPPORTED - jinit_merged_upsampler(cinfo); /* does color conversion too */ -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif - } else { - jinit_color_deconverter(cinfo); - jinit_upsampler(cinfo); - } - jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant); - } - /* Inverse DCT */ - jinit_inverse_dct(cinfo); - /* Entropy decoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_decoder(cinfo); - else { - jinit_huff_decoder(cinfo); - } - - /* Initialize principal buffer controllers. */ - use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image; - jinit_d_coef_controller(cinfo, use_c_buffer); - - if (! cinfo->raw_data_out) - jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Initialize input side of decompressor to consume first scan. */ - (*cinfo->inputctl->start_input_pass) (cinfo); - -#ifdef D_MULTISCAN_FILES_SUPPORTED - /* If jpeg_start_decompress will read the whole file, initialize - * progress monitoring appropriately. The input step is counted - * as one pass. - */ - if (cinfo->progress != NULL && ! cinfo->buffered_image && - cinfo->inputctl->has_multiple_scans) { - int nscans; - /* Estimate number of scans to set pass_limit. */ - if (cinfo->progressive_mode) { - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - nscans = 2 + 3 * cinfo->num_components; - } else { - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - nscans = cinfo->num_components; - } - cinfo->progress->pass_counter = 0L; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - cinfo->progress->completed_passes = 0; - cinfo->progress->total_passes = (cinfo->enable_2pass_quant ? 3 : 2); - /* Count the input pass as done */ - master->pass_number++; - } -#endif /* D_MULTISCAN_FILES_SUPPORTED */ -} - - -/* - * Per-pass setup. - * This is called at the beginning of each output pass. We determine which - * modules will be active during this pass and give them appropriate - * start_pass calls. We also set is_dummy_pass to indicate whether this - * is a "real" output pass or a dummy pass for color quantization. - * (In the latter case, jdapistd.c will crank the pass to completion.) - */ - -METHODDEF(void) -prepare_for_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (master->pub.is_dummy_pass) { -#ifdef QUANT_2PASS_SUPPORTED - /* Final pass of 2-pass quantization */ - master->pub.is_dummy_pass = FALSE; - (*cinfo->cquantize->start_pass) (cinfo, FALSE); - (*cinfo->post->start_pass) (cinfo, JBUF_CRANK_DEST); - (*cinfo->main->start_pass) (cinfo, JBUF_CRANK_DEST); -#else - ERREXIT(cinfo, JERR_NOT_COMPILED); -#endif /* QUANT_2PASS_SUPPORTED */ - } else { - if (cinfo->quantize_colors && cinfo->colormap == NULL) { - /* Select new quantization method */ - if (cinfo->two_pass_quantize && cinfo->enable_2pass_quant) { - cinfo->cquantize = master->quantizer_2pass; - master->pub.is_dummy_pass = TRUE; - } else if (cinfo->enable_1pass_quant) { - cinfo->cquantize = master->quantizer_1pass; - } else { - ERREXIT(cinfo, JERR_MODE_CHANGE); - } - } - (*cinfo->idct->start_pass) (cinfo); - (*cinfo->coef->start_output_pass) (cinfo); - if (! cinfo->raw_data_out) { - if (! master->using_merged_upsample) - (*cinfo->cconvert->start_pass) (cinfo); - (*cinfo->upsample->start_pass) (cinfo); - if (cinfo->quantize_colors) - (*cinfo->cquantize->start_pass) (cinfo, master->pub.is_dummy_pass); - (*cinfo->post->start_pass) (cinfo, - (master->pub.is_dummy_pass ? JBUF_SAVE_AND_PASS : JBUF_PASS_THRU)); - (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU); - } - } - - /* Set up progress monitor's pass info if present */ - if (cinfo->progress != NULL) { - cinfo->progress->completed_passes = master->pass_number; - cinfo->progress->total_passes = master->pass_number + - (master->pub.is_dummy_pass ? 2 : 1); - /* In buffered-image mode, we assume one more output pass if EOI not - * yet reached, but no more passes if EOI has been reached. - */ - if (cinfo->buffered_image && ! cinfo->inputctl->eoi_reached) { - cinfo->progress->total_passes += (cinfo->enable_2pass_quant ? 2 : 1); - } - } -} - - -/* - * Finish up at end of an output pass. - */ - -METHODDEF(void) -finish_output_pass (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - if (cinfo->quantize_colors) - (*cinfo->cquantize->finish_pass) (cinfo); - master->pass_number++; -} - - -#ifdef D_MULTISCAN_FILES_SUPPORTED - -/* - * Switch to a new external colormap between output passes. - */ - -GLOBAL(void) -jpeg_new_colormap (j_decompress_ptr cinfo) -{ - my_master_ptr master = (my_master_ptr) cinfo->master; - - /* Prevent application from calling me at wrong times */ - if (cinfo->global_state != DSTATE_BUFIMAGE) - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - - if (cinfo->quantize_colors && cinfo->enable_external_quant && - cinfo->colormap != NULL) { - /* Select 2-pass quantizer for external colormap use */ - cinfo->cquantize = master->quantizer_2pass; - /* Notify quantizer of colormap change */ - (*cinfo->cquantize->new_color_map) (cinfo); - master->pub.is_dummy_pass = FALSE; /* just in case */ - } else - ERREXIT(cinfo, JERR_MODE_CHANGE); -} - -#endif /* D_MULTISCAN_FILES_SUPPORTED */ - - -/* - * Initialize master decompression control and select active modules. - * This is performed at the start of jpeg_start_decompress. - */ - -GLOBAL(void) -jinit_master_decompress (j_decompress_ptr cinfo) -{ - my_master_ptr master; - - master = (my_master_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_decomp_master)); - cinfo->master = (struct jpeg_decomp_master *) master; - master->pub.prepare_for_output_pass = prepare_for_output_pass; - master->pub.finish_output_pass = finish_output_pass; - - master->pub.is_dummy_pass = FALSE; - - master_selection(cinfo); -} diff --git a/jpeg/jdmerge.c b/jpeg/jdmerge.c deleted file mode 100755 index 3744446..0000000 --- a/jpeg/jdmerge.c +++ /dev/null @@ -1,400 +0,0 @@ -/* - * jdmerge.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains code for merged upsampling/color conversion. - * - * This file combines functions from jdsample.c and jdcolor.c; - * read those files first to understand what's going on. - * - * When the chroma components are to be upsampled by simple replication - * (ie, box filtering), we can save some work in color conversion by - * calculating all the output pixels corresponding to a pair of chroma - * samples at one time. In the conversion equations - * R = Y + K1 * Cr - * G = Y + K2 * Cb + K3 * Cr - * B = Y + K4 * Cb - * only the Y term varies among the group of pixels corresponding to a pair - * of chroma samples, so the rest of the terms can be calculated just once. - * At typical sampling ratios, this eliminates half or three-quarters of the - * multiplications needed for color conversion. - * - * This file currently provides implementations for the following cases: - * YCbCr => RGB color conversion only. - * Sampling ratios of 2h1v or 2h2v. - * No scaling needed at upsample time. - * Corner-aligned (non-CCIR601) sampling alignment. - * Other special cases could be added, but in most applications these are - * the only common cases. (For uncommon cases we fall back on the more - * general code in jdsample.c and jdcolor.c.) - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef UPSAMPLE_MERGING_SUPPORTED - - -/* Private subobject */ - -typedef struct { - struct jpeg_upsampler pub; /* public fields */ - - /* Pointer to routine to do actual upsampling/conversion of one row group */ - JMETHOD(void, upmethod, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf)); - - /* Private state for YCC->RGB conversion */ - int * Cr_r_tab; /* => table for Cr to R conversion */ - int * Cb_b_tab; /* => table for Cb to B conversion */ - INT32 * Cr_g_tab; /* => table for Cr to G conversion */ - INT32 * Cb_g_tab; /* => table for Cb to G conversion */ - - /* For 2:1 vertical sampling, we produce two output rows at a time. - * We need a "spare" row buffer to hold the second output row if the - * application provides just a one-row buffer; we also use the spare - * to discard the dummy last row if the image height is odd. - */ - JSAMPROW spare_row; - boolean spare_full; /* T if spare buffer is occupied */ - - JDIMENSION out_row_width; /* samples per output row */ - JDIMENSION rows_to_go; /* counts rows remaining in image */ -} my_upsampler; - -typedef my_upsampler * my_upsample_ptr; - -#define SCALEBITS 16 /* speediest right-shift on some machines */ -#define ONE_HALF ((INT32) 1 << (SCALEBITS-1)) -#define FIX(x) ((INT32) ((x) * (1L<RGB colorspace conversion. - * This is taken directly from jdcolor.c; see that file for more info. - */ - -LOCAL(void) -build_ycc_rgb_table (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - int i; - INT32 x; - SHIFT_TEMPS - - upsample->Cr_r_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cb_b_tab = (int *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(int)); - upsample->Cr_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - upsample->Cb_g_tab = (INT32 *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (MAXJSAMPLE+1) * SIZEOF(INT32)); - - for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) { - /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */ - /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */ - /* Cr=>R value is nearest int to 1.40200 * x */ - upsample->Cr_r_tab[i] = (int) - RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS); - /* Cb=>B value is nearest int to 1.77200 * x */ - upsample->Cb_b_tab[i] = (int) - RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS); - /* Cr=>G value is scaled-up -0.71414 * x */ - upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x; - /* Cb=>G value is scaled-up -0.34414 * x */ - /* We also add in ONE_HALF so that need not do it in inner loop */ - upsample->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF; - } -} - - -/* - * Initialize for an upsampling pass. - */ - -METHODDEF(void) -start_pass_merged_upsample (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Mark the spare buffer empty */ - upsample->spare_full = FALSE; - /* Initialize total-height counter for detecting bottom of image */ - upsample->rows_to_go = cinfo->output_height; -} - - -/* - * Control routine to do upsampling (and color conversion). - * - * The control routine just handles the row buffering considerations. - */ - -METHODDEF(void) -merged_2v_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -/* 2:1 vertical sampling case: may need a spare row. */ -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - JSAMPROW work_ptrs[2]; - JDIMENSION num_rows; /* number of rows returned to caller */ - - if (upsample->spare_full) { - /* If we have a spare row saved from a previous cycle, just return it. */ - jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0, - 1, upsample->out_row_width); - num_rows = 1; - upsample->spare_full = FALSE; - } else { - /* Figure number of rows to return to caller. */ - num_rows = 2; - /* Not more than the distance to the end of the image. */ - if (num_rows > upsample->rows_to_go) - num_rows = upsample->rows_to_go; - /* And not more than what the client can accept: */ - out_rows_avail -= *out_row_ctr; - if (num_rows > out_rows_avail) - num_rows = out_rows_avail; - /* Create output pointer array for upsampler. */ - work_ptrs[0] = output_buf[*out_row_ctr]; - if (num_rows > 1) { - work_ptrs[1] = output_buf[*out_row_ctr + 1]; - } else { - work_ptrs[1] = upsample->spare_row; - upsample->spare_full = TRUE; - } - /* Now do the upsampling. */ - (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, work_ptrs); - } - - /* Adjust counts */ - *out_row_ctr += num_rows; - upsample->rows_to_go -= num_rows; - /* When the buffer is emptied, declare this input row group consumed */ - if (! upsample->spare_full) - (*in_row_group_ctr)++; -} - - -METHODDEF(void) -merged_1v_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -/* 1:1 vertical sampling case: much easier, never need a spare row. */ -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Just do the upsampling. */ - (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, - output_buf + *out_row_ctr); - /* Adjust counts */ - (*out_row_ctr)++; - (*in_row_group_ctr)++; -} - - -/* - * These are the routines invoked by the control routines to do - * the actual upsampling/conversion. One row group is processed per call. - * - * Note: since we may be writing directly into application-supplied buffers, - * we have to be honest about the output width; we can't assume the buffer - * has been rounded up to an even width. - */ - - -/* - * Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. - */ - -METHODDEF(void) -h2v1_merged_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - register int y, cred, cgreen, cblue; - int cb, cr; - register JSAMPROW outptr; - JSAMPROW inptr0, inptr1, inptr2; - JDIMENSION col; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - int * Crrtab = upsample->Cr_r_tab; - int * Cbbtab = upsample->Cb_b_tab; - INT32 * Crgtab = upsample->Cr_g_tab; - INT32 * Cbgtab = upsample->Cb_g_tab; - SHIFT_TEMPS - - inptr0 = input_buf[0][in_row_group_ctr]; - inptr1 = input_buf[1][in_row_group_ctr]; - inptr2 = input_buf[2][in_row_group_ctr]; - outptr = output_buf[0]; - /* Loop for each pair of output pixels */ - for (col = cinfo->output_width >> 1; col > 0; col--) { - /* Do the chroma part of the calculation */ - cb = GETJSAMPLE(*inptr1++); - cr = GETJSAMPLE(*inptr2++); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - /* Fetch 2 Y values and emit 2 pixels */ - y = GETJSAMPLE(*inptr0++); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - outptr += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr0++); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - outptr += RGB_PIXELSIZE; - } - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr0); - outptr[RGB_RED] = range_limit[y + cred]; - outptr[RGB_GREEN] = range_limit[y + cgreen]; - outptr[RGB_BLUE] = range_limit[y + cblue]; - } -} - - -/* - * Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. - */ - -METHODDEF(void) -h2v2_merged_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - register int y, cred, cgreen, cblue; - int cb, cr; - register JSAMPROW outptr0, outptr1; - JSAMPROW inptr00, inptr01, inptr1, inptr2; - JDIMENSION col; - /* copy these pointers into registers if possible */ - register JSAMPLE * range_limit = cinfo->sample_range_limit; - int * Crrtab = upsample->Cr_r_tab; - int * Cbbtab = upsample->Cb_b_tab; - INT32 * Crgtab = upsample->Cr_g_tab; - INT32 * Cbgtab = upsample->Cb_g_tab; - SHIFT_TEMPS - - inptr00 = input_buf[0][in_row_group_ctr*2]; - inptr01 = input_buf[0][in_row_group_ctr*2 + 1]; - inptr1 = input_buf[1][in_row_group_ctr]; - inptr2 = input_buf[2][in_row_group_ctr]; - outptr0 = output_buf[0]; - outptr1 = output_buf[1]; - /* Loop for each group of output pixels */ - for (col = cinfo->output_width >> 1; col > 0; col--) { - /* Do the chroma part of the calculation */ - cb = GETJSAMPLE(*inptr1++); - cr = GETJSAMPLE(*inptr2++); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - /* Fetch 4 Y values and emit 4 pixels */ - y = GETJSAMPLE(*inptr00++); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr00++); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - outptr1 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - outptr1 += RGB_PIXELSIZE; - } - /* If image width is odd, do the last output column separately */ - if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); - cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); - cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr00); - outptr0[RGB_RED] = range_limit[y + cred]; - outptr0[RGB_GREEN] = range_limit[y + cgreen]; - outptr0[RGB_BLUE] = range_limit[y + cblue]; - y = GETJSAMPLE(*inptr01); - outptr1[RGB_RED] = range_limit[y + cred]; - outptr1[RGB_GREEN] = range_limit[y + cgreen]; - outptr1[RGB_BLUE] = range_limit[y + cblue]; - } -} - - -/* - * Module initialization routine for merged upsampling/color conversion. - * - * NB: this is called under the conditions determined by use_merged_upsample() - * in jdmaster.c. That routine MUST correspond to the actual capabilities - * of this module; no safety checks are made here. - */ - -GLOBAL(void) -jinit_merged_upsampler (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample; - - upsample = (my_upsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_upsampler)); - cinfo->upsample = (struct jpeg_upsampler *) upsample; - upsample->pub.start_pass = start_pass_merged_upsample; - upsample->pub.need_context_rows = FALSE; - - upsample->out_row_width = cinfo->output_width * cinfo->out_color_components; - - if (cinfo->max_v_samp_factor == 2) { - upsample->pub.upsample = merged_2v_upsample; - upsample->upmethod = h2v2_merged_upsample; - /* Allocate a spare row buffer */ - upsample->spare_row = (JSAMPROW) - (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (upsample->out_row_width * SIZEOF(JSAMPLE))); - } else { - upsample->pub.upsample = merged_1v_upsample; - upsample->upmethod = h2v1_merged_upsample; - /* No spare row needed */ - upsample->spare_row = NULL; - } - - build_ycc_rgb_table(cinfo); -} - -#endif /* UPSAMPLE_MERGING_SUPPORTED */ diff --git a/jpeg/jdosaobj.txt b/jpeg/jdosaobj.txt deleted file mode 100755 index 4318362..0000000 --- a/jpeg/jdosaobj.txt +++ /dev/null @@ -1,16 +0,0 @@ -This archive contains already-assembled object files for JMEMDOSA.ASM -of the Independent JPEG Group's JPEG package. These files will be helpful -if you want to compile the IJG code for DOS, but don't have an assembler. - -These files were prepared from the 3/13/1992 version of JMEMDOSA.ASM, -which is still unchanged as of mid-1998. You can use these files with -releases 3 through 6 of the IJG code, and probably future releases too. - -To use these files, copy the proper version to JMEMDOSA.OBJ. Make sure -this file has a newer date than JMEMDOSA.ASM. Then compile the code as -usual. - -Object files included: - -JDOSAMSC.OBJ For Microsoft C version 5 or later. -JDOSABCC.OBJ For Borland C version 3.0 or later. diff --git a/jpeg/jdpostct.c b/jpeg/jdpostct.c deleted file mode 100755 index 571563d..0000000 --- a/jpeg/jdpostct.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * jdpostct.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the decompression postprocessing controller. - * This controller manages the upsampling, color conversion, and color - * quantization/reduction steps; specifically, it controls the buffering - * between upsample/color conversion and color quantization/reduction. - * - * If no color quantization/reduction is required, then this module has no - * work to do, and it just hands off to the upsample/color conversion code. - * An integrated upsample/convert/quantize process would replace this module - * entirely. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Private buffer controller object */ - -typedef struct { - struct jpeg_d_post_controller pub; /* public fields */ - - /* Color quantization source buffer: this holds output data from - * the upsample/color conversion step to be passed to the quantizer. - * For two-pass color quantization, we need a full-image buffer; - * for one-pass operation, a strip buffer is sufficient. - */ - jvirt_sarray_ptr whole_image; /* virtual array, or NULL if one-pass */ - JSAMPARRAY buffer; /* strip buffer, or current strip of virtual */ - JDIMENSION strip_height; /* buffer size in rows */ - /* for two-pass mode only: */ - JDIMENSION starting_row; /* row # of first row in current strip */ - JDIMENSION next_row; /* index of next row to fill/empty in strip */ -} my_post_controller; - -typedef my_post_controller * my_post_ptr; - - -/* Forward declarations */ -METHODDEF(void) post_process_1pass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -#ifdef QUANT_2PASS_SUPPORTED -METHODDEF(void) post_process_prepass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -METHODDEF(void) post_process_2pass - JPP((j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -#endif - - -/* - * Initialize for a processing pass. - */ - -METHODDEF(void) -start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - - switch (pass_mode) { - case JBUF_PASS_THRU: - if (cinfo->quantize_colors) { - /* Single-pass processing with color quantization. */ - post->pub.post_process_data = post_process_1pass; - /* We could be doing buffered-image output before starting a 2-pass - * color quantization; in that case, jinit_d_post_controller did not - * allocate a strip buffer. Use the virtual-array buffer as workspace. - */ - if (post->buffer == NULL) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - (JDIMENSION) 0, post->strip_height, TRUE); - } - } else { - /* For single-pass processing without color quantization, - * I have no work to do; just call the upsampler directly. - */ - post->pub.post_process_data = cinfo->upsample->upsample; - } - break; -#ifdef QUANT_2PASS_SUPPORTED - case JBUF_SAVE_AND_PASS: - /* First pass of 2-pass quantization */ - if (post->whole_image == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - post->pub.post_process_data = post_process_prepass; - break; - case JBUF_CRANK_DEST: - /* Second pass of 2-pass quantization */ - if (post->whole_image == NULL) - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - post->pub.post_process_data = post_process_2pass; - break; -#endif /* QUANT_2PASS_SUPPORTED */ - default: - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); - break; - } - post->starting_row = post->next_row = 0; -} - - -/* - * Process some data in the one-pass (strip buffer) case. - * This is used for color precision reduction as well as one-pass quantization. - */ - -METHODDEF(void) -post_process_1pass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION num_rows, max_rows; - - /* Fill the buffer, but not more than what we can dump out in one go. */ - /* Note we rely on the upsampler to detect bottom of image. */ - max_rows = out_rows_avail - *out_row_ctr; - if (max_rows > post->strip_height) - max_rows = post->strip_height; - num_rows = 0; - (*cinfo->upsample->upsample) (cinfo, - input_buf, in_row_group_ctr, in_row_groups_avail, - post->buffer, &num_rows, max_rows); - /* Quantize and emit data. */ - (*cinfo->cquantize->color_quantize) (cinfo, - post->buffer, output_buf + *out_row_ctr, (int) num_rows); - *out_row_ctr += num_rows; -} - - -#ifdef QUANT_2PASS_SUPPORTED - -/* - * Process some data in the first pass of 2-pass quantization. - */ - -METHODDEF(void) -post_process_prepass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION old_next_row, num_rows; - - /* Reposition virtual buffer if at start of strip. */ - if (post->next_row == 0) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - post->starting_row, post->strip_height, TRUE); - } - - /* Upsample some data (up to a strip height's worth). */ - old_next_row = post->next_row; - (*cinfo->upsample->upsample) (cinfo, - input_buf, in_row_group_ctr, in_row_groups_avail, - post->buffer, &post->next_row, post->strip_height); - - /* Allow quantizer to scan new data. No data is emitted, */ - /* but we advance out_row_ctr so outer loop can tell when we're done. */ - if (post->next_row > old_next_row) { - num_rows = post->next_row - old_next_row; - (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row, - (JSAMPARRAY) NULL, (int) num_rows); - *out_row_ctr += num_rows; - } - - /* Advance if we filled the strip. */ - if (post->next_row >= post->strip_height) { - post->starting_row += post->strip_height; - post->next_row = 0; - } -} - - -/* - * Process some data in the second pass of 2-pass quantization. - */ - -METHODDEF(void) -post_process_2pass (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_post_ptr post = (my_post_ptr) cinfo->post; - JDIMENSION num_rows, max_rows; - - /* Reposition virtual buffer if at start of strip. */ - if (post->next_row == 0) { - post->buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, post->whole_image, - post->starting_row, post->strip_height, FALSE); - } - - /* Determine number of rows to emit. */ - num_rows = post->strip_height - post->next_row; /* available in strip */ - max_rows = out_rows_avail - *out_row_ctr; /* available in output area */ - if (num_rows > max_rows) - num_rows = max_rows; - /* We have to check bottom of image here, can't depend on upsampler. */ - max_rows = cinfo->output_height - post->starting_row; - if (num_rows > max_rows) - num_rows = max_rows; - - /* Quantize and emit data. */ - (*cinfo->cquantize->color_quantize) (cinfo, - post->buffer + post->next_row, output_buf + *out_row_ctr, - (int) num_rows); - *out_row_ctr += num_rows; - - /* Advance if we filled the strip. */ - post->next_row += num_rows; - if (post->next_row >= post->strip_height) { - post->starting_row += post->strip_height; - post->next_row = 0; - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ - - -/* - * Initialize postprocessing controller. - */ - -GLOBAL(void) -jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer) -{ - my_post_ptr post; - - post = (my_post_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_post_controller)); - cinfo->post = (struct jpeg_d_post_controller *) post; - post->pub.start_pass = start_pass_dpost; - post->whole_image = NULL; /* flag for no virtual arrays */ - post->buffer = NULL; /* flag for no strip buffer */ - - /* Create the quantization buffer, if needed */ - if (cinfo->quantize_colors) { - /* The buffer strip height is max_v_samp_factor, which is typically - * an efficient number of rows for upsampling to return. - * (In the presence of output rescaling, we might want to be smarter?) - */ - post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor; - if (need_full_buffer) { - /* Two-pass color quantization: need full-image storage. */ - /* We round up the number of rows to a multiple of the strip height. */ -#ifdef QUANT_2PASS_SUPPORTED - post->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - cinfo->output_width * cinfo->out_color_components, - (JDIMENSION) jround_up((long) cinfo->output_height, - (long) post->strip_height), - post->strip_height); -#else - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE); -#endif /* QUANT_2PASS_SUPPORTED */ - } else { - /* One-pass color quantization: just make a strip buffer. */ - post->buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width * cinfo->out_color_components, - post->strip_height); - } - } -} diff --git a/jpeg/jdsample.c b/jpeg/jdsample.c deleted file mode 100755 index 7bc8885..0000000 --- a/jpeg/jdsample.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * jdsample.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2002-2008 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains upsampling routines. - * - * Upsampling input data is counted in "row groups". A row group - * is defined to be (v_samp_factor * DCT_v_scaled_size / min_DCT_v_scaled_size) - * sample rows of each component. Upsampling will normally produce - * max_v_samp_factor pixel rows from each row group (but this could vary - * if the upsampler is applying a scale factor of its own). - * - * An excellent reference for image resampling is - * Digital Image Warping, George Wolberg, 1990. - * Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Pointer to routine to upsample a single component */ -typedef JMETHOD(void, upsample1_ptr, - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)); - -/* Private subobject */ - -typedef struct { - struct jpeg_upsampler pub; /* public fields */ - - /* Color conversion buffer. When using separate upsampling and color - * conversion steps, this buffer holds one upsampled row group until it - * has been color converted and output. - * Note: we do not allocate any storage for component(s) which are full-size, - * ie do not need rescaling. The corresponding entry of color_buf[] is - * simply set to point to the input data array, thereby avoiding copying. - */ - JSAMPARRAY color_buf[MAX_COMPONENTS]; - - /* Per-component upsampling method pointers */ - upsample1_ptr methods[MAX_COMPONENTS]; - - int next_row_out; /* counts rows emitted from color_buf */ - JDIMENSION rows_to_go; /* counts rows remaining in image */ - - /* Height of an input row group for each component. */ - int rowgroup_height[MAX_COMPONENTS]; - - /* These arrays save pixel expansion factors so that int_expand need not - * recompute them each time. They are unused for other upsampling methods. - */ - UINT8 h_expand[MAX_COMPONENTS]; - UINT8 v_expand[MAX_COMPONENTS]; -} my_upsampler; - -typedef my_upsampler * my_upsample_ptr; - - -/* - * Initialize for an upsampling pass. - */ - -METHODDEF(void) -start_pass_upsample (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - - /* Mark the conversion buffer empty */ - upsample->next_row_out = cinfo->max_v_samp_factor; - /* Initialize total-height counter for detecting bottom of image */ - upsample->rows_to_go = cinfo->output_height; -} - - -/* - * Control routine to do upsampling (and color conversion). - * - * In this version we upsample each component independently. - * We upsample one row group into the conversion buffer, then apply - * color conversion a row at a time. - */ - -METHODDEF(void) -sep_upsample (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - int ci; - jpeg_component_info * compptr; - JDIMENSION num_rows; - - /* Fill the conversion buffer, if it's empty */ - if (upsample->next_row_out >= cinfo->max_v_samp_factor) { - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Invoke per-component upsample method. Notice we pass a POINTER - * to color_buf[ci], so that fullsize_upsample can change it. - */ - (*upsample->methods[ci]) (cinfo, compptr, - input_buf[ci] + (*in_row_group_ctr * upsample->rowgroup_height[ci]), - upsample->color_buf + ci); - } - upsample->next_row_out = 0; - } - - /* Color-convert and emit rows */ - - /* How many we have in the buffer: */ - num_rows = (JDIMENSION) (cinfo->max_v_samp_factor - upsample->next_row_out); - /* Not more than the distance to the end of the image. Need this test - * in case the image height is not a multiple of max_v_samp_factor: - */ - if (num_rows > upsample->rows_to_go) - num_rows = upsample->rows_to_go; - /* And not more than what the client can accept: */ - out_rows_avail -= *out_row_ctr; - if (num_rows > out_rows_avail) - num_rows = out_rows_avail; - - (*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf, - (JDIMENSION) upsample->next_row_out, - output_buf + *out_row_ctr, - (int) num_rows); - - /* Adjust counts */ - *out_row_ctr += num_rows; - upsample->rows_to_go -= num_rows; - upsample->next_row_out += num_rows; - /* When the buffer is emptied, declare this input row group consumed */ - if (upsample->next_row_out >= cinfo->max_v_samp_factor) - (*in_row_group_ctr)++; -} - - -/* - * These are the routines invoked by sep_upsample to upsample pixel values - * of a single component. One row group is processed per call. - */ - - -/* - * For full-size components, we just make color_buf[ci] point at the - * input buffer, and thus avoid copying any data. Note that this is - * safe only because sep_upsample doesn't declare the input row group - * "consumed" until we are done color converting and emitting it. - */ - -METHODDEF(void) -fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - *output_data_ptr = input_data; -} - - -/* - * This is a no-op version used for "uninteresting" components. - * These components will not be referenced by color conversion. - */ - -METHODDEF(void) -noop_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - *output_data_ptr = NULL; /* safety check */ -} - - -/* - * This version handles any integral sampling ratios. - * This is not used for typical JPEG files, so it need not be fast. - * Nor, for that matter, is it particularly accurate: the algorithm is - * simple replication of the input pixel onto the corresponding output - * pixels. The hi-falutin sampling literature refers to this as a - * "box filter". A box filter tends to introduce visible artifacts, - * so if you are actually going to use 3:1 or 4:1 sampling ratios - * you would be well advised to improve this code. - */ - -METHODDEF(void) -int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample; - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - register int h; - JSAMPROW outend; - int h_expand, v_expand; - int inrow, outrow; - - h_expand = upsample->h_expand[compptr->component_index]; - v_expand = upsample->v_expand[compptr->component_index]; - - inrow = outrow = 0; - while (outrow < cinfo->max_v_samp_factor) { - /* Generate one output row with proper horizontal expansion */ - inptr = input_data[inrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - for (h = h_expand; h > 0; h--) { - *outptr++ = invalue; - } - } - /* Generate any additional output rows by duplicating the first one */ - if (v_expand > 1) { - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - v_expand-1, cinfo->output_width); - } - inrow++; - outrow += v_expand; - } -} - - -/* - * Fast processing for the common case of 2:1 horizontal and 1:1 vertical. - * It's still a box filter. - */ - -METHODDEF(void) -h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - JSAMPROW outend; - int outrow; - - for (outrow = 0; outrow < cinfo->max_v_samp_factor; outrow++) { - inptr = input_data[outrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - *outptr++ = invalue; - *outptr++ = invalue; - } - } -} - - -/* - * Fast processing for the common case of 2:1 horizontal and 2:1 vertical. - * It's still a box filter. - */ - -METHODDEF(void) -h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) -{ - JSAMPARRAY output_data = *output_data_ptr; - register JSAMPROW inptr, outptr; - register JSAMPLE invalue; - JSAMPROW outend; - int inrow, outrow; - - inrow = outrow = 0; - while (outrow < cinfo->max_v_samp_factor) { - inptr = input_data[inrow]; - outptr = output_data[outrow]; - outend = outptr + cinfo->output_width; - while (outptr < outend) { - invalue = *inptr++; /* don't need GETJSAMPLE() here */ - *outptr++ = invalue; - *outptr++ = invalue; - } - jcopy_sample_rows(output_data, outrow, output_data, outrow+1, - 1, cinfo->output_width); - inrow++; - outrow += 2; - } -} - - -/* - * Module initialization routine for upsampling. - */ - -GLOBAL(void) -jinit_upsampler (j_decompress_ptr cinfo) -{ - my_upsample_ptr upsample; - int ci; - jpeg_component_info * compptr; - boolean need_buffer; - int h_in_group, v_in_group, h_out_group, v_out_group; - - upsample = (my_upsample_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_upsampler)); - cinfo->upsample = (struct jpeg_upsampler *) upsample; - upsample->pub.start_pass = start_pass_upsample; - upsample->pub.upsample = sep_upsample; - upsample->pub.need_context_rows = FALSE; /* until we find out differently */ - - if (cinfo->CCIR601_sampling) /* this isn't supported */ - ERREXIT(cinfo, JERR_CCIR601_NOTIMPL); - - /* Verify we can handle the sampling factors, select per-component methods, - * and create storage as needed. - */ - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components; - ci++, compptr++) { - /* Compute size of an "input group" after IDCT scaling. This many samples - * are to be converted to max_h_samp_factor * max_v_samp_factor pixels. - */ - h_in_group = (compptr->h_samp_factor * compptr->DCT_h_scaled_size) / - cinfo->min_DCT_h_scaled_size; - v_in_group = (compptr->v_samp_factor * compptr->DCT_v_scaled_size) / - cinfo->min_DCT_v_scaled_size; - h_out_group = cinfo->max_h_samp_factor; - v_out_group = cinfo->max_v_samp_factor; - upsample->rowgroup_height[ci] = v_in_group; /* save for use later */ - need_buffer = TRUE; - if (! compptr->component_needed) { - /* Don't bother to upsample an uninteresting component. */ - upsample->methods[ci] = noop_upsample; - need_buffer = FALSE; - } else if (h_in_group == h_out_group && v_in_group == v_out_group) { - /* Fullsize components can be processed without any work. */ - upsample->methods[ci] = fullsize_upsample; - need_buffer = FALSE; - } else if (h_in_group * 2 == h_out_group && - v_in_group == v_out_group) { - /* Special case for 2h1v upsampling */ - upsample->methods[ci] = h2v1_upsample; - } else if (h_in_group * 2 == h_out_group && - v_in_group * 2 == v_out_group) { - /* Special case for 2h2v upsampling */ - upsample->methods[ci] = h2v2_upsample; - } else if ((h_out_group % h_in_group) == 0 && - (v_out_group % v_in_group) == 0) { - /* Generic integral-factors upsampling method */ - upsample->methods[ci] = int_upsample; - upsample->h_expand[ci] = (UINT8) (h_out_group / h_in_group); - upsample->v_expand[ci] = (UINT8) (v_out_group / v_in_group); - } else - ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL); - if (need_buffer) { - upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) jround_up((long) cinfo->output_width, - (long) cinfo->max_h_samp_factor), - (JDIMENSION) cinfo->max_v_samp_factor); - } - } -} diff --git a/jpeg/jdtrans.c b/jpeg/jdtrans.c deleted file mode 100755 index 22dd47f..0000000 --- a/jpeg/jdtrans.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * jdtrans.c - * - * Copyright (C) 1995-1997, Thomas G. Lane. - * Modified 2000-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains library routines for transcoding decompression, - * that is, reading raw DCT coefficient arrays from an input JPEG file. - * The routines in jdapimin.c will also be needed by a transcoder. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* Forward declarations */ -LOCAL(void) transdecode_master_selection JPP((j_decompress_ptr cinfo)); - - -/* - * Read the coefficient arrays from a JPEG file. - * jpeg_read_header must be completed before calling this. - * - * The entire image is read into a set of virtual coefficient-block arrays, - * one per component. The return value is a pointer to the array of - * virtual-array descriptors. These can be manipulated directly via the - * JPEG memory manager, or handed off to jpeg_write_coefficients(). - * To release the memory occupied by the virtual arrays, call - * jpeg_finish_decompress() when done with the data. - * - * An alternative usage is to simply obtain access to the coefficient arrays - * during a buffered-image-mode decompression operation. This is allowed - * after any jpeg_finish_output() call. The arrays can be accessed until - * jpeg_finish_decompress() is called. (Note that any call to the library - * may reposition the arrays, so don't rely on access_virt_barray() results - * to stay valid across library calls.) - * - * Returns NULL if suspended. This case need be checked only if - * a suspending data source is used. - */ - -GLOBAL(jvirt_barray_ptr *) -jpeg_read_coefficients (j_decompress_ptr cinfo) -{ - if (cinfo->global_state == DSTATE_READY) { - /* First call: initialize active modules */ - transdecode_master_selection(cinfo); - cinfo->global_state = DSTATE_RDCOEFS; - } - if (cinfo->global_state == DSTATE_RDCOEFS) { - /* Absorb whole file into the coef buffer */ - for (;;) { - int retcode; - /* Call progress monitor hook if present */ - if (cinfo->progress != NULL) - (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); - /* Absorb some more input */ - retcode = (*cinfo->inputctl->consume_input) (cinfo); - if (retcode == JPEG_SUSPENDED) - return NULL; - if (retcode == JPEG_REACHED_EOI) - break; - /* Advance progress counter if appropriate */ - if (cinfo->progress != NULL && - (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) { - if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) { - /* startup underestimated number of scans; ratchet up one scan */ - cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows; - } - } - } - /* Set state so that jpeg_finish_decompress does the right thing */ - cinfo->global_state = DSTATE_STOPPING; - } - /* At this point we should be in state DSTATE_STOPPING if being used - * standalone, or in state DSTATE_BUFIMAGE if being invoked to get access - * to the coefficients during a full buffered-image-mode decompression. - */ - if ((cinfo->global_state == DSTATE_STOPPING || - cinfo->global_state == DSTATE_BUFIMAGE) && cinfo->buffered_image) { - return cinfo->coef->coef_arrays; - } - /* Oops, improper usage */ - ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); - return NULL; /* keep compiler happy */ -} - - -/* - * Master selection of decompression modules for transcoding. - * This substitutes for jdmaster.c's initialization of the full decompressor. - */ - -LOCAL(void) -transdecode_master_selection (j_decompress_ptr cinfo) -{ - /* This is effectively a buffered-image operation. */ - cinfo->buffered_image = TRUE; - - /* Compute output image dimensions and related values. */ - jpeg_core_output_dimensions(cinfo); - - /* Entropy decoding: either Huffman or arithmetic coding. */ - if (cinfo->arith_code) - jinit_arith_decoder(cinfo); - else { - jinit_huff_decoder(cinfo); - } - - /* Always get a full-image coefficient buffer. */ - jinit_d_coef_controller(cinfo, TRUE); - - /* We can now tell the memory manager to allocate virtual arrays. */ - (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo); - - /* Initialize input side of decompressor to consume first scan. */ - (*cinfo->inputctl->start_input_pass) (cinfo); - - /* Initialize progress monitoring. */ - if (cinfo->progress != NULL) { - int nscans; - /* Estimate number of scans to set pass_limit. */ - if (cinfo->progressive_mode) { - /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */ - nscans = 2 + 3 * cinfo->num_components; - } else if (cinfo->inputctl->has_multiple_scans) { - /* For a nonprogressive multiscan file, estimate 1 scan per component. */ - nscans = cinfo->num_components; - } else { - nscans = 1; - } - cinfo->progress->pass_counter = 0L; - cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans; - cinfo->progress->completed_passes = 0; - cinfo->progress->total_passes = 1; - } -} diff --git a/jpeg/jerror.c b/jpeg/jerror.c deleted file mode 100755 index 3da7be8..0000000 --- a/jpeg/jerror.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * jerror.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains simple error-reporting and trace-message routines. - * These are suitable for Unix-like systems and others where writing to - * stderr is the right thing to do. Many applications will want to replace - * some or all of these routines. - * - * If you define USE_WINDOWS_MESSAGEBOX in jconfig.h or in the makefile, - * you get a Windows-specific hack to display error messages in a dialog box. - * It ain't much, but it beats dropping error messages into the bit bucket, - * which is what happens to output to stderr under most Windows C compilers. - * - * These routines are used by both the compression and decompression code. - */ - -/* this is not a core library module, so it doesn't define JPEG_INTERNALS */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jversion.h" -#include "jerror.h" - -#ifdef USE_WINDOWS_MESSAGEBOX -#include -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif - - -/* - * Create the message string table. - * We do this from the master message list in jerror.h by re-reading - * jerror.h with a suitable definition for macro JMESSAGE. - * The message table is made an external symbol just in case any applications - * want to refer to it directly. - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_message_table jMsgTable -#endif - -#define JMESSAGE(code,string) string , - -const char * const jpeg_std_message_table[] = { -#include "jerror.h" - NULL -}; - - -/* - * Error exit handler: must not return to caller. - * - * Applications may override this if they want to get control back after - * an error. Typically one would longjmp somewhere instead of exiting. - * The setjmp buffer can be made a private field within an expanded error - * handler object. Note that the info needed to generate an error message - * is stored in the error object, so you can generate the message now or - * later, at your convenience. - * You should make sure that the JPEG object is cleaned up (with jpeg_abort - * or jpeg_destroy) at some point. - */ - -METHODDEF(void) -error_exit (j_common_ptr cinfo) -{ - /* Always display the message */ - (*cinfo->err->output_message) (cinfo); - - /* Let the memory manager delete any temp files before we die */ - jpeg_destroy(cinfo); - - exit(EXIT_FAILURE); -} - - -/* - * Actual output of an error or trace message. - * Applications may override this method to send JPEG messages somewhere - * other than stderr. - * - * On Windows, printing to stderr is generally completely useless, - * so we provide optional code to produce an error-dialog popup. - * Most Windows applications will still prefer to override this routine, - * but if they don't, it'll do something at least marginally useful. - * - * NOTE: to use the library in an environment that doesn't support the - * C stdio library, you may have to delete the call to fprintf() entirely, - * not just not use this routine. - */ - -METHODDEF(void) -output_message (j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - /* Create the message */ - (*cinfo->err->format_message) (cinfo, buffer); - -#ifdef USE_WINDOWS_MESSAGEBOX - /* Display it in a message dialog box */ - MessageBox(GetActiveWindow(), buffer, "JPEG Library Error", - MB_OK | MB_ICONERROR); -#else - /* Send it to stderr, adding a newline */ - fprintf(stderr, "%s\n", buffer); -#endif -} - - -/* - * Decide whether to emit a trace or warning message. - * msg_level is one of: - * -1: recoverable corrupt-data warning, may want to abort. - * 0: important advisory messages (always display to user). - * 1: first level of tracing detail. - * 2,3,...: successively more detailed tracing messages. - * An application might override this method if it wanted to abort on warnings - * or change the policy about which messages to display. - */ - -METHODDEF(void) -emit_message (j_common_ptr cinfo, int msg_level) -{ - struct jpeg_error_mgr * err = cinfo->err; - - if (msg_level < 0) { - /* It's a warning message. Since corrupt files may generate many warnings, - * the policy implemented here is to show only the first warning, - * unless trace_level >= 3. - */ - if (err->num_warnings == 0 || err->trace_level >= 3) - (*err->output_message) (cinfo); - /* Always count warnings in num_warnings. */ - err->num_warnings++; - } else { - /* It's a trace message. Show it if trace_level >= msg_level. */ - if (err->trace_level >= msg_level) - (*err->output_message) (cinfo); - } -} - - -/* - * Format a message string for the most recent JPEG error or message. - * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX - * characters. Note that no '\n' character is added to the string. - * Few applications should need to override this method. - */ - -METHODDEF(void) -format_message (j_common_ptr cinfo, char * buffer) -{ - struct jpeg_error_mgr * err = cinfo->err; - int msg_code = err->msg_code; - const char * msgtext = NULL; - const char * msgptr; - char ch; - boolean isstring; - - /* Look up message string in proper table */ - if (msg_code > 0 && msg_code <= err->last_jpeg_message) { - msgtext = err->jpeg_message_table[msg_code]; - } else if (err->addon_message_table != NULL && - msg_code >= err->first_addon_message && - msg_code <= err->last_addon_message) { - msgtext = err->addon_message_table[msg_code - err->first_addon_message]; - } - - /* Defend against bogus message number */ - if (msgtext == NULL) { - err->msg_parm.i[0] = msg_code; - msgtext = err->jpeg_message_table[0]; - } - - /* Check for string parameter, as indicated by %s in the message text */ - isstring = FALSE; - msgptr = msgtext; - while ((ch = *msgptr++) != '\0') { - if (ch == '%') { - if (*msgptr == 's') isstring = TRUE; - break; - } - } - - /* Format the message into the passed buffer */ - if (isstring) - sprintf(buffer, msgtext, err->msg_parm.s); - else - sprintf(buffer, msgtext, - err->msg_parm.i[0], err->msg_parm.i[1], - err->msg_parm.i[2], err->msg_parm.i[3], - err->msg_parm.i[4], err->msg_parm.i[5], - err->msg_parm.i[6], err->msg_parm.i[7]); -} - - -/* - * Reset error state variables at start of a new image. - * This is called during compression startup to reset trace/error - * processing to default state, without losing any application-specific - * method pointers. An application might possibly want to override - * this method if it has additional error processing state. - */ - -METHODDEF(void) -reset_error_mgr (j_common_ptr cinfo) -{ - cinfo->err->num_warnings = 0; - /* trace_level is not reset since it is an application-supplied parameter */ - cinfo->err->msg_code = 0; /* may be useful as a flag for "no error" */ -} - - -/* - * Fill in the standard error-handling methods in a jpeg_error_mgr object. - * Typical call is: - * struct jpeg_compress_struct cinfo; - * struct jpeg_error_mgr err; - * - * cinfo.err = jpeg_std_error(&err); - * after which the application may override some of the methods. - */ - -GLOBAL(struct jpeg_error_mgr *) -jpeg_std_error (struct jpeg_error_mgr * err) -{ - err->error_exit = error_exit; - err->emit_message = emit_message; - err->output_message = output_message; - err->format_message = format_message; - err->reset_error_mgr = reset_error_mgr; - - err->trace_level = 0; /* default = no tracing */ - err->num_warnings = 0; /* no warnings emitted yet */ - err->msg_code = 0; /* may be useful as a flag for "no error" */ - - /* Initialize message table pointers */ - err->jpeg_message_table = jpeg_std_message_table; - err->last_jpeg_message = (int) JMSG_LASTMSGCODE - 1; - - err->addon_message_table = NULL; - err->first_addon_message = 0; /* for safety */ - err->last_addon_message = 0; - - return err; -} diff --git a/jpeg/jerror.h b/jpeg/jerror.h deleted file mode 100755 index 1cfb2b1..0000000 --- a/jpeg/jerror.h +++ /dev/null @@ -1,304 +0,0 @@ -/* - * jerror.h - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 1997-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the error and message codes for the JPEG library. - * Edit this file to add new codes, or to translate the message strings to - * some other language. - * A set of error-reporting macros are defined too. Some applications using - * the JPEG library may wish to include this file to get the error codes - * and/or the macros. - */ - -/* - * To define the enum list of message codes, include this file without - * defining macro JMESSAGE. To create a message string table, include it - * again with a suitable JMESSAGE definition (see jerror.c for an example). - */ -#ifndef JMESSAGE -#ifndef JERROR_H -/* First time through, define the enum list */ -#define JMAKE_ENUM_LIST -#else -/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ -#define JMESSAGE(code,string) -#endif /* JERROR_H */ -#endif /* JMESSAGE */ - -#ifdef JMAKE_ENUM_LIST - -typedef enum { - -#define JMESSAGE(code,string) code , - -#endif /* JMAKE_ENUM_LIST */ - -JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */ - -/* For maintenance convenience, list is alphabetical by message code name */ -JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix") -JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix") -JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode") -JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS") -JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request") -JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range") -JMESSAGE(JERR_BAD_DCTSIZE, "DCT scaled block size %dx%d not supported") -JMESSAGE(JERR_BAD_DROP_SAMPLING, - "Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c") -JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition") -JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace") -JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace") -JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length") -JMESSAGE(JERR_BAD_LIB_VERSION, - "Wrong JPEG library version: library is %d, caller expects %d") -JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan") -JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d") -JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d") -JMESSAGE(JERR_BAD_PROGRESSION, - "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d") -JMESSAGE(JERR_BAD_PROG_SCRIPT, - "Invalid progressive parameters at scan script entry %d") -JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors") -JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d") -JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d") -JMESSAGE(JERR_BAD_STRUCT_SIZE, - "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u") -JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access") -JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small") -JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here") -JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet") -JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d") -JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request") -JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d") -JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x") -JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d") -JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d") -JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)") -JMESSAGE(JERR_EMS_READ, "Read from EMS failed") -JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed") -JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan") -JMESSAGE(JERR_FILE_READ, "Input file read error") -JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?") -JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet") -JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow") -JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry") -JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels") -JMESSAGE(JERR_INPUT_EMPTY, "Empty input file") -JMESSAGE(JERR_INPUT_EOF, "Premature end of input file") -JMESSAGE(JERR_MISMATCHED_QUANT_TABLE, - "Cannot transcode due to multiple use of quantization table %d") -JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data") -JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change") -JMESSAGE(JERR_NOTIMPL, "Not implemented yet") -JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time") -JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined") -JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported") -JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined") -JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image") -JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined") -JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x") -JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)") -JMESSAGE(JERR_QUANT_COMPONENTS, - "Cannot quantize more than %d color components") -JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors") -JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors") -JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers") -JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker") -JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x") -JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers") -JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF") -JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s") -JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file") -JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file") -JMESSAGE(JERR_TFILE_WRITE, - "Write failed on temporary file --- out of disk space?") -JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines") -JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x") -JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up") -JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation") -JMESSAGE(JERR_XMS_READ, "Read from XMS failed") -JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed") -JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT) -JMESSAGE(JMSG_VERSION, JVERSION) -JMESSAGE(JTRC_16BIT_TABLES, - "Caution: quantization tables are too coarse for baseline JPEG") -JMESSAGE(JTRC_ADOBE, - "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d") -JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u") -JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u") -JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x") -JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x") -JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d") -JMESSAGE(JTRC_DRI, "Define Restart Interval %u") -JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u") -JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u") -JMESSAGE(JTRC_EOI, "End Of Image") -JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d") -JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d") -JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE, - "Warning: thumbnail image size does not match data length %u") -JMESSAGE(JTRC_JFIF_EXTENSION, - "JFIF extension marker: type 0x%02x, length %u") -JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image") -JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u") -JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x") -JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u") -JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors") -JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors") -JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization") -JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d") -JMESSAGE(JTRC_RST, "RST%d") -JMESSAGE(JTRC_SMOOTH_NOTIMPL, - "Smoothing not supported with nonstandard sampling ratios") -JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d") -JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d") -JMESSAGE(JTRC_SOI, "Start of Image") -JMESSAGE(JTRC_SOS, "Start Of Scan: %d components") -JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d") -JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d") -JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s") -JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s") -JMESSAGE(JTRC_THUMB_JPEG, - "JFIF extension marker: JPEG-compressed thumbnail image, length %u") -JMESSAGE(JTRC_THUMB_PALETTE, - "JFIF extension marker: palette thumbnail image, length %u") -JMESSAGE(JTRC_THUMB_RGB, - "JFIF extension marker: RGB thumbnail image, length %u") -JMESSAGE(JTRC_UNKNOWN_IDS, - "Unrecognized component IDs %d %d %d, assuming YCbCr") -JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u") -JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u") -JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d") -JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code") -JMESSAGE(JWRN_BOGUS_PROGRESSION, - "Inconsistent progression sequence for component %d coefficient %d") -JMESSAGE(JWRN_EXTRANEOUS_DATA, - "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x") -JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment") -JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code") -JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d") -JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file") -JMESSAGE(JWRN_MUST_RESYNC, - "Corrupt JPEG data: found marker 0x%02x instead of RST%d") -JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG") -JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines") - -#ifdef JMAKE_ENUM_LIST - - JMSG_LASTMSGCODE -} J_MESSAGE_CODE; - -#undef JMAKE_ENUM_LIST -#endif /* JMAKE_ENUM_LIST */ - -/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ -#undef JMESSAGE - - -#ifndef JERROR_H -#define JERROR_H - -/* Macros to simplify using the error and trace message stuff */ -/* The first parameter is either type of cinfo pointer */ - -/* Fatal errors (print message and exit) */ -#define ERREXIT(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT3(cinfo,code,p1,p2,p3) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (cinfo)->err->msg_parm.i[3] = (p4), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXIT6(cinfo,code,p1,p2,p3,p4,p5,p6) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (cinfo)->err->msg_parm.i[2] = (p3), \ - (cinfo)->err->msg_parm.i[3] = (p4), \ - (cinfo)->err->msg_parm.i[4] = (p5), \ - (cinfo)->err->msg_parm.i[5] = (p6), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) -#define ERREXITS(cinfo,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) - -#define MAKESTMT(stuff) do { stuff } while (0) - -/* Nonfatal errors (we can keep going, but the data is probably corrupt) */ -#define WARNMS(cinfo,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS1(cinfo,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) -#define WARNMS2(cinfo,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) - -/* Informational/debugging messages */ -#define TRACEMS(cinfo,lvl,code) \ - ((cinfo)->err->msg_code = (code), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS1(cinfo,lvl,code,p1) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS2(cinfo,lvl,code,p1,p2) \ - ((cinfo)->err->msg_code = (code), \ - (cinfo)->err->msg_parm.i[0] = (p1), \ - (cinfo)->err->msg_parm.i[1] = (p2), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) -#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - _mp[4] = (p5); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \ - MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ - _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ - _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \ - (cinfo)->err->msg_code = (code); \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) -#define TRACEMSS(cinfo,lvl,code,str) \ - ((cinfo)->err->msg_code = (code), \ - strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ - (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) - -#endif /* JERROR_H */ diff --git a/jpeg/jfdctflt.c b/jpeg/jfdctflt.c deleted file mode 100755 index 74d0d86..0000000 --- a/jpeg/jfdctflt.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * jfdctflt.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a floating-point implementation of the - * forward DCT (Discrete Cosine Transform). - * - * This implementation should be more accurate than either of the integer - * DCT implementations. However, it may not give the same results on all - * machines because of differences in roundoff behavior. Speed will depend - * on the hardware's floating point capacity. - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with a fixed-point - * implementation, accuracy is lost due to imprecise representation of the - * scaled quantization values. However, that problem does not arise if - * we use floating point arithmetic. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_FLOAT_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_float (FAST_FLOAT * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - FAST_FLOAT z1, z2, z3, z4, z5, z11, z13; - FAST_FLOAT *dataptr; - JSAMPROW elemptr; - int ctr; - - /* Pass 1: process rows. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Load data into workspace */ - tmp0 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7])); - tmp7 = (FAST_FLOAT) (GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7])); - tmp1 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6])); - tmp6 = (FAST_FLOAT) (GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6])); - tmp2 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5])); - tmp5 = (FAST_FLOAT) (GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5])); - tmp3 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4])); - tmp4 = (FAST_FLOAT) (GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4])); - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - /* Apply unsigned->signed conversion */ - dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ - dataptr[4] = tmp10 - tmp11; - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - dataptr[2] = tmp13 + z1; /* phase 5 */ - dataptr[6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[5] = z13 + z2; /* phase 6 */ - dataptr[3] = z13 - z2; - dataptr[1] = z11 + z4; - dataptr[7] = z11 - z4; - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ - dataptr[DCTSIZE*4] = tmp10 - tmp11; - - z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */ - dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ - dataptr[DCTSIZE*6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */ - z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */ - z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */ - z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ - dataptr[DCTSIZE*3] = z13 - z2; - dataptr[DCTSIZE*1] = z11 + z4; - dataptr[DCTSIZE*7] = z11 - z4; - - dataptr++; /* advance pointer to next column */ - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpeg/jfdctfst.c b/jpeg/jfdctfst.c deleted file mode 100755 index 8cad5f2..0000000 --- a/jpeg/jfdctfst.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * jfdctfst.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a fast, not so accurate integer implementation of the - * forward DCT (Discrete Cosine Transform). - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with fixed-point math, - * accuracy is lost due to imprecise representation of the scaled - * quantization values. The smaller the quantization table entry, the less - * precise the scaled value, so this implementation does worse with high- - * quality-setting files than with low-quality ones. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_IFAST_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Scaling decisions are generally the same as in the LL&M algorithm; - * see jfdctint.c for more details. However, we choose to descale - * (right shift) multiplication products as soon as they are formed, - * rather than carrying additional fractional bits into subsequent additions. - * This compromises accuracy slightly, but it lets us save a few shifts. - * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) - * everywhere except in the multiplications proper; this saves a good deal - * of work on 16-bit-int machines. - * - * Again to save a few shifts, the intermediate results between pass 1 and - * pass 2 are not upscaled, but are represented only to integral precision. - * - * A final compromise is to represent the multiplicative constants to only - * 8 fractional bits, rather than 13. This saves some shifting work on some - * machines, and may also reduce the cost of multiplication (since there - * are fewer one-bits in the constants). - */ - -#define CONST_BITS 8 - - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 8 -#define FIX_0_382683433 ((INT32) 98) /* FIX(0.382683433) */ -#define FIX_0_541196100 ((INT32) 139) /* FIX(0.541196100) */ -#define FIX_0_707106781 ((INT32) 181) /* FIX(0.707106781) */ -#define FIX_1_306562965 ((INT32) 334) /* FIX(1.306562965) */ -#else -#define FIX_0_382683433 FIX(0.382683433) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_707106781 FIX(0.707106781) -#define FIX_1_306562965 FIX(1.306562965) -#endif - - -/* We can gain a little more speed, with a further compromise in accuracy, - * by omitting the addition in a descaling shift. This yields an incorrectly - * rounded result half the time... - */ - -#ifndef USE_ACCURATE_ROUNDING -#undef DESCALE -#define DESCALE(x,n) RIGHT_SHIFT(x, n) -#endif - - -/* Multiply a DCTELEM variable by an INT32 constant, and immediately - * descale to yield a DCTELEM result. - */ - -#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_ifast (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - DCTELEM tmp10, tmp11, tmp12, tmp13; - DCTELEM z1, z2, z3, z4, z5, z11, z13; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Load data into workspace */ - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp7 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp6 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp5 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - tmp4 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - /* Apply unsigned->signed conversion */ - dataptr[0] = tmp10 + tmp11 - 8 * CENTERJSAMPLE; /* phase 3 */ - dataptr[4] = tmp10 - tmp11; - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ - dataptr[2] = tmp13 + z1; /* phase 5 */ - dataptr[6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ - z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ - z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ - z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[5] = z13 + z2; /* phase 6 */ - dataptr[3] = z13 - z2; - dataptr[1] = z11 + z4; - dataptr[7] = z11 - z4; - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - /* Even part */ - - tmp10 = tmp0 + tmp3; /* phase 2 */ - tmp13 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp1 - tmp2; - - dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */ - dataptr[DCTSIZE*4] = tmp10 - tmp11; - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */ - dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */ - dataptr[DCTSIZE*6] = tmp13 - z1; - - /* Odd part */ - - tmp10 = tmp4 + tmp5; /* phase 2 */ - tmp11 = tmp5 + tmp6; - tmp12 = tmp6 + tmp7; - - /* The rotator is modified from fig 4-8 to avoid extra negations. */ - z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */ - z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */ - z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */ - z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */ - - z11 = tmp7 + z3; /* phase 5 */ - z13 = tmp7 - z3; - - dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */ - dataptr[DCTSIZE*3] = z13 - z2; - dataptr[DCTSIZE*1] = z11 + z4; - dataptr[DCTSIZE*7] = z11 - z4; - - dataptr++; /* advance pointer to next column */ - } -} - -#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpeg/jfdctint.c b/jpeg/jfdctint.c deleted file mode 100755 index 1dde58c..0000000 --- a/jpeg/jfdctint.c +++ /dev/null @@ -1,4348 +0,0 @@ -/* - * jfdctint.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modification developed 2003-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a slow-but-accurate integer implementation of the - * forward DCT (Discrete Cosine Transform). - * - * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT - * on each column. Direct algorithms are also available, but they are - * much more complex and seem not to be any faster when reduced to code. - * - * This implementation is based on an algorithm described in - * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT - * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, - * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. - * The primary algorithm described there uses 11 multiplies and 29 adds. - * We use their alternate method with 12 multiplies and 32 adds. - * The advantage of this method is that no data path contains more than one - * multiplication; this allows a very simple and accurate implementation in - * scaled fixed-point arithmetic, with a minimal number of shifts. - * - * We also provide FDCT routines with various input sample block sizes for - * direct resolution reduction or enlargement and for direct resolving the - * common 2x1 and 1x2 subsampling cases without additional resampling: NxN - * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 output DCT block. - * - * For N<8 we fill the remaining block coefficients with zero. - * For N>8 we apply a partial N-point FDCT on the input samples, computing - * just the lower 8 frequency coefficients and discarding the rest. - * - * We must scale the output coefficients of the N-point FDCT appropriately - * to the standard 8-point FDCT level by 8/N per 1-D pass. This scaling - * is folded into the constant multipliers (pass 2) and/or final/initial - * shifting. - * - * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases - * since there would be too many additional constants to pre-calculate. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_ISLOW_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ -#endif - - -/* - * The poop on this scaling stuff is as follows: - * - * Each 1-D DCT step produces outputs which are a factor of sqrt(N) - * larger than the true DCT outputs. The final outputs are therefore - * a factor of N larger than desired; since N=8 this can be cured by - * a simple right shift at the end of the algorithm. The advantage of - * this arrangement is that we save two multiplications per 1-D DCT, - * because the y0 and y4 outputs need not be divided by sqrt(N). - * In the IJG code, this factor of 8 is removed by the quantization step - * (in jcdctmgr.c), NOT in this module. - * - * We have to do addition and subtraction of the integer inputs, which - * is no problem, and multiplication by fractional constants, which is - * a problem to do in integer arithmetic. We multiply all the constants - * by CONST_SCALE and convert them to integer constants (thus retaining - * CONST_BITS bits of precision in the constants). After doing a - * multiplication we have to divide the product by CONST_SCALE, with proper - * rounding, to produce the correct output. This division can be done - * cheaply as a right shift of CONST_BITS bits. We postpone shifting - * as long as possible so that partial sums can be added together with - * full fractional precision. - * - * The outputs of the first pass are scaled up by PASS1_BITS bits so that - * they are represented to better-than-integral precision. These outputs - * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word - * with the recommended scaling. (For 12-bit sample data, the intermediate - * array is INT32 anyway.) - * - * To avoid overflow of the 32-bit intermediate results in pass 2, we must - * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis - * shows that the values given below are the most effective. - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 13 -#define PASS1_BITS 2 -#else -#define CONST_BITS 13 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 13 -#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ -#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ -#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ -#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ -#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ -#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ -#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ -#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ -#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ -#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ -#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ -#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ -#else -#define FIX_0_298631336 FIX(0.298631336) -#define FIX_0_390180644 FIX(0.390180644) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_765366865 FIX(0.765366865) -#define FIX_0_899976223 FIX(0.899976223) -#define FIX_1_175875602 FIX(1.175875602) -#define FIX_1_501321110 FIX(1.501321110) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_1_961570560 FIX(1.961570560) -#define FIX_2_053119869 FIX(2.053119869) -#define FIX_2_562915447 FIX(2.562915447) -#define FIX_3_072711026 FIX(3.072711026) -#endif - - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * For 8-bit samples with the recommended scaling, all the variable - * and constant values involved are no more than 16 bits wide, so a - * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. - * For 12-bit samples, a full 32-bit multiplication will be needed. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MULTIPLY(var,const) MULTIPLY16C16(var,const) -#else -#define MULTIPLY(var,const) ((var) * (const)) -#endif - - -/* - * Perform the forward DCT on one block of samples. - */ - -GLOBAL(void) -jpeg_fdct_islow (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - /* Add fudge factor here for final descale. */ - tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - dataptr[DCTSIZE*2] = (DCTELEM) - RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - -#ifdef DCT_SCALING_SUPPORTED - - -/* - * Perform the forward DCT on a 7x7 sample block. - */ - -GLOBAL(void) -jpeg_fdct_7x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/14). */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); - tmp3 = GETJSAMPLE(elemptr[3]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); - - z1 = tmp0 + tmp2; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ - dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/7)**2 = 64/49, which we fold - * into the constant multipliers: - * cK now represents sqrt(2) * cos(K*pi/14) * 64/49. - */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; - - z1 = tmp0 + tmp2; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ - CONST_BITS+PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x6 sample block. - */ - -GLOBAL(void) -jpeg_fdct_6x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)**2 = 16/9, which we fold - * into the constant multipliers: - * cK now represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 5x5 sample block. - */ - -GLOBAL(void) -jpeg_fdct_5x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/10). */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); - tmp2 = GETJSAMPLE(elemptr[2]); - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << (PASS1_BITS+1)); - tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ - dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS-1); - dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ - - dataptr[1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ - CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/5)**2 = 64/25, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * cK now represents sqrt(2) * cos(K*pi/10) * 32/25. - */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2]; - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x4 sample block. - */ - -GLOBAL(void) -jpeg_fdct_4x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by (8/4)**2 = 2**2, which we add here. */ - /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+2)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+2)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-3); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-2); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-2); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 3x3 sample block. - */ - -GLOBAL(void) -jpeg_fdct_3x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2**2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/6). */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); - tmp1 = GETJSAMPLE(elemptr[1]); - - tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+2)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ - CONST_BITS-PASS1_BITS-2); - - /* Odd part */ - - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ - CONST_BITS-PASS1_BITS-2); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/3)**2 = 64/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * cK now represents sqrt(2) * cos(K*pi/6) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1]; - - tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x2 sample block. - */ - -GLOBAL(void) -jpeg_fdct_2x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - JSAMPROW elemptr; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - - /* Row 0 */ - elemptr = sample_data[0] + start_col; - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); - tmp1 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); - - /* Row 1 */ - elemptr = sample_data[1] + start_col; - - tmp2 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[1]); - tmp3 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[1]); - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/2)**2 = 2**4. - */ - - /* Column 0 */ - /* Apply unsigned->signed conversion */ - data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp2 - 4 * CENTERJSAMPLE) << 4); - data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp2) << 4); - - /* Column 1 */ - data[DCTSIZE*0+1] = (DCTELEM) ((tmp1 + tmp3) << 4); - data[DCTSIZE*1+1] = (DCTELEM) ((tmp1 - tmp3) << 4); -} - - -/* - * Perform the forward DCT on a 1x1 sample block. - */ - -GLOBAL(void) -jpeg_fdct_1x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* We leave the result scaled up by an overall factor of 8. */ - /* We must also scale the output by (8/1)**2 = 2**6. */ - /* Apply unsigned->signed conversion */ - data[0] = (DCTELEM) - ((GETJSAMPLE(sample_data[0][start_col]) - CENTERJSAMPLE) << 6); -} - - -/* - * Perform the forward DCT on a 9x9 sample block. - */ - -GLOBAL(void) -jpeg_fdct_9x9 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2; - DCTELEM workspace[8]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/18). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[8]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[7]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[6]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[5]); - tmp4 = GETJSAMPLE(elemptr[4]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[8]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[7]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[6]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[5]); - - z1 = tmp0 + tmp2 + tmp3; - z2 = tmp1 + tmp4; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((z1 + z2 - 9 * CENTERJSAMPLE) << 1); - dataptr[6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z2 - z2, FIX(0.707106781)), /* c6 */ - CONST_BITS-1); - z1 = MULTIPLY(tmp0 - tmp2, FIX(1.328926049)); /* c2 */ - z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(0.707106781)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.083350441)) /* c4 */ - + z1 + z2, CONST_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.245575608)) /* c8 */ - + z1 - z2, CONST_BITS-1); - - /* Odd part */ - - dataptr[3] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.224744871)), /* c3 */ - CONST_BITS-1); - - tmp11 = MULTIPLY(tmp11, FIX(1.224744871)); /* c3 */ - tmp0 = MULTIPLY(tmp10 + tmp12, FIX(0.909038955)); /* c5 */ - tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.483689525)); /* c7 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS-1); - - tmp2 = MULTIPLY(tmp12 - tmp13, FIX(1.392728481)); /* c1 */ - - dataptr[5] = (DCTELEM) DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 9) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/9)**2 = 64/81, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/18) * 128/81. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*0]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*7]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*6]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*5]; - tmp4 = dataptr[DCTSIZE*4]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*0]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*7]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*6]; - tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*5]; - - z1 = tmp0 + tmp2 + tmp3; - z2 = tmp1 + tmp4; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + z2, FIX(1.580246914)), /* 128/81 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z2 - z2, FIX(1.117403309)), /* c6 */ - CONST_BITS+2); - z1 = MULTIPLY(tmp0 - tmp2, FIX(2.100031287)); /* c2 */ - z2 = MULTIPLY(tmp1 - tmp4 - tmp4, FIX(1.117403309)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp2 - tmp3, FIX(1.711961190)) /* c4 */ - + z1 + z2, CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp3 - tmp0, FIX(0.388070096)) /* c8 */ - + z1 - z2, CONST_BITS+2); - - /* Odd part */ - - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12 - tmp13, FIX(1.935399303)), /* c3 */ - CONST_BITS+2); - - tmp11 = MULTIPLY(tmp11, FIX(1.935399303)); /* c3 */ - tmp0 = MULTIPLY(tmp10 + tmp12, FIX(1.436506004)); /* c5 */ - tmp1 = MULTIPLY(tmp10 + tmp13, FIX(0.764348879)); /* c7 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp0 + tmp1, CONST_BITS+2); - - tmp2 = MULTIPLY(tmp12 - tmp13, FIX(2.200854883)); /* c1 */ - - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp0 - tmp11 - tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(tmp1 - tmp11 + tmp2, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 10x10 sample block. - */ - -GLOBAL(void) -jpeg_fdct_10x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM workspace[8*2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/20). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); - tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << 1); - tmp12 += tmp12; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ - CONST_BITS-1); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ - CONST_BITS-1); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ - CONST_BITS-1); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << 1); - tmp2 <<= CONST_BITS; - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ - CONST_BITS-1); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ - (tmp11 << (CONST_BITS - 1)) - tmp2; - dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 10) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/10)**2 = 16/25, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/20) * 32/25. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; - tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ - CONST_BITS+2); - tmp12 += tmp12; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ - CONST_BITS+2); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ - CONST_BITS+2); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+2); - tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ - CONST_BITS+2); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ - MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on an 11x11 sample block. - */ - -GLOBAL(void) -jpeg_fdct_11x11 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 z1, z2, z3; - DCTELEM workspace[8*3]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* we scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* cK represents sqrt(2) * cos(K*pi/22). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[10]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[9]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[8]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[7]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[6]); - tmp5 = GETJSAMPLE(elemptr[5]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[10]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[9]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[8]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[7]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 - 11 * CENTERJSAMPLE) << 1); - tmp5 += tmp5; - tmp0 -= tmp5; - tmp1 -= tmp5; - tmp2 -= tmp5; - tmp3 -= tmp5; - tmp4 -= tmp5; - z1 = MULTIPLY(tmp0 + tmp3, FIX(1.356927976)) + /* c2 */ - MULTIPLY(tmp2 + tmp4, FIX(0.201263574)); /* c10 */ - z2 = MULTIPLY(tmp1 - tmp3, FIX(0.926112931)); /* c6 */ - z3 = MULTIPLY(tmp0 - tmp1, FIX(1.189712156)); /* c4 */ - dataptr[2] = (DCTELEM) - DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.018300590)) /* c2+c8-c6 */ - - MULTIPLY(tmp4, FIX(1.390975730)), /* c4+c10 */ - CONST_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.062335650)) /* c4-c6-c10 */ - - MULTIPLY(tmp2, FIX(1.356927976)) /* c2 */ - + MULTIPLY(tmp4, FIX(0.587485545)), /* c8 */ - CONST_BITS-1); - dataptr[6] = (DCTELEM) - DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.620527200)) /* c2+c4-c6 */ - - MULTIPLY(tmp2, FIX(0.788749120)), /* c8+c10 */ - CONST_BITS-1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.286413905)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.068791298)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.764581576)); /* c7 */ - tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.719967871)) /* c7+c5+c3-c1 */ - + MULTIPLY(tmp14, FIX(0.398430003)); /* c9 */ - tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.764581576)); /* -c7 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.399818907)); /* -c1 */ - tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.276416582)) /* c9+c7+c1-c3 */ - - MULTIPLY(tmp14, FIX(1.068791298)); /* c5 */ - tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.398430003)); /* c9 */ - tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(1.989053629)) /* c9+c5+c3-c7 */ - + MULTIPLY(tmp14, FIX(1.399818907)); /* c1 */ - tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.305598626)) /* c1+c5-c9-c7 */ - - MULTIPLY(tmp14, FIX(1.286413905)); /* c3 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-1); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-1); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-1); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS-1); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 11) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/11)**2 = 64/121, which we partially - * fold into the constant multipliers and final/initial shifting: - * cK now represents sqrt(2) * cos(K*pi/22) * 128/121. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*1]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*0]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*7]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*6]; - tmp5 = dataptr[DCTSIZE*5]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*2]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*1]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*0]; - tmp13 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*7]; - tmp14 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5, - FIX(1.057851240)), /* 128/121 */ - CONST_BITS+2); - tmp5 += tmp5; - tmp0 -= tmp5; - tmp1 -= tmp5; - tmp2 -= tmp5; - tmp3 -= tmp5; - tmp4 -= tmp5; - z1 = MULTIPLY(tmp0 + tmp3, FIX(1.435427942)) + /* c2 */ - MULTIPLY(tmp2 + tmp4, FIX(0.212906922)); /* c10 */ - z2 = MULTIPLY(tmp1 - tmp3, FIX(0.979689713)); /* c6 */ - z3 = MULTIPLY(tmp0 - tmp1, FIX(1.258538479)); /* c4 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(z1 + z2 - MULTIPLY(tmp3, FIX(1.077210542)) /* c2+c8-c6 */ - - MULTIPLY(tmp4, FIX(1.471445400)), /* c4+c10 */ - CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 + MULTIPLY(tmp1, FIX(0.065941844)) /* c4-c6-c10 */ - - MULTIPLY(tmp2, FIX(1.435427942)) /* c2 */ - + MULTIPLY(tmp4, FIX(0.621472312)), /* c8 */ - CONST_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(z1 + z3 - MULTIPLY(tmp0, FIX(1.714276708)) /* c2+c4-c6 */ - - MULTIPLY(tmp2, FIX(0.834379234)), /* c8+c10 */ - CONST_BITS+2); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.360834544)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.130622199)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.808813568)); /* c7 */ - tmp0 = tmp1 + tmp2 + tmp3 - MULTIPLY(tmp10, FIX(1.819470145)) /* c7+c5+c3-c1 */ - + MULTIPLY(tmp14, FIX(0.421479672)); /* c9 */ - tmp4 = MULTIPLY(tmp11 + tmp12, - FIX(0.808813568)); /* -c7 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.480800167)); /* -c1 */ - tmp1 += tmp4 + tmp5 + MULTIPLY(tmp11, FIX(1.350258864)) /* c9+c7+c1-c3 */ - - MULTIPLY(tmp14, FIX(1.130622199)); /* c5 */ - tmp10 = MULTIPLY(tmp12 + tmp13, FIX(0.421479672)); /* c9 */ - tmp2 += tmp4 + tmp10 - MULTIPLY(tmp12, FIX(2.104122847)) /* c9+c5+c3-c7 */ - + MULTIPLY(tmp14, FIX(1.480800167)); /* c1 */ - tmp3 += tmp5 + tmp10 + MULTIPLY(tmp13, FIX(1.381129125)) /* c1+c5-c9-c7 */ - - MULTIPLY(tmp14, FIX(1.360834544)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 12x12 sample block. - */ - -GLOBAL(void) -jpeg_fdct_12x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM workspace[8*4]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/24). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) (tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE); - dataptr[6] = (DCTELEM) (tmp13 - tmp14 - tmp15); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ - CONST_BITS); - dataptr[2] = (DCTELEM) - DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ - CONST_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 12) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/12)**2 = 4/9, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/24) * 8/9. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ - CONST_BITS+1); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ - MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ - CONST_BITS+1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 13x13 sample block. - */ - -GLOBAL(void) -jpeg_fdct_13x13 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 z1, z2; - DCTELEM workspace[8*5]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/26). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[12]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[11]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[10]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[9]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[8]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[7]); - tmp6 = GETJSAMPLE(elemptr[6]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[12]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[11]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[10]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[9]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[8]); - tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - (tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6 - 13 * CENTERJSAMPLE); - tmp6 += tmp6; - tmp0 -= tmp6; - tmp1 -= tmp6; - tmp2 -= tmp6; - tmp3 -= tmp6; - tmp4 -= tmp6; - tmp5 -= tmp6; - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.373119086)) + /* c2 */ - MULTIPLY(tmp1, FIX(1.058554052)) + /* c6 */ - MULTIPLY(tmp2, FIX(0.501487041)) - /* c10 */ - MULTIPLY(tmp3, FIX(0.170464608)) - /* c12 */ - MULTIPLY(tmp4, FIX(0.803364869)) - /* c8 */ - MULTIPLY(tmp5, FIX(1.252223920)), /* c4 */ - CONST_BITS); - z1 = MULTIPLY(tmp0 - tmp2, FIX(1.155388986)) - /* (c4+c6)/2 */ - MULTIPLY(tmp3 - tmp4, FIX(0.435816023)) - /* (c2-c10)/2 */ - MULTIPLY(tmp1 - tmp5, FIX(0.316450131)); /* (c8-c12)/2 */ - z2 = MULTIPLY(tmp0 + tmp2, FIX(0.096834934)) - /* (c4-c6)/2 */ - MULTIPLY(tmp3 + tmp4, FIX(0.937303064)) + /* (c2+c10)/2 */ - MULTIPLY(tmp1 + tmp5, FIX(0.486914739)); /* (c8+c12)/2 */ - - dataptr[4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.322312651)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(1.163874945)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.937797057)) + /* c7 */ - MULTIPLY(tmp14 + tmp15, FIX(0.338443458)); /* c11 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(tmp10, FIX(2.020082300)) + /* c3+c5+c7-c1 */ - MULTIPLY(tmp14, FIX(0.318774355)); /* c9-c11 */ - tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.937797057)) - /* c7 */ - MULTIPLY(tmp11 + tmp12, FIX(0.338443458)); /* c11 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(1.163874945)); /* -c5 */ - tmp1 += tmp4 + tmp5 + - MULTIPLY(tmp11, FIX(0.837223564)) - /* c5+c9+c11-c3 */ - MULTIPLY(tmp14, FIX(2.341699410)); /* c1+c7 */ - tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.657217813)); /* -c9 */ - tmp2 += tmp4 + tmp6 - - MULTIPLY(tmp12, FIX(1.572116027)) + /* c1+c5-c9-c11 */ - MULTIPLY(tmp15, FIX(2.260109708)); /* c3+c7 */ - tmp3 += tmp5 + tmp6 + - MULTIPLY(tmp13, FIX(2.205608352)) - /* c3+c5+c9-c7 */ - MULTIPLY(tmp15, FIX(1.742345811)); /* c1+c11 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 13) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/13)**2 = 64/169, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/26) * 128/169. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*2]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*1]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*0]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*7]; - tmp6 = dataptr[DCTSIZE*6]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*4]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*3]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*2]; - tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*1]; - tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*0]; - tmp15 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1 + tmp2 + tmp3 + tmp4 + tmp5 + tmp6, - FIX(0.757396450)), /* 128/169 */ - CONST_BITS+1); - tmp6 += tmp6; - tmp0 -= tmp6; - tmp1 -= tmp6; - tmp2 -= tmp6; - tmp3 -= tmp6; - tmp4 -= tmp6; - tmp5 -= tmp6; - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.039995521)) + /* c2 */ - MULTIPLY(tmp1, FIX(0.801745081)) + /* c6 */ - MULTIPLY(tmp2, FIX(0.379824504)) - /* c10 */ - MULTIPLY(tmp3, FIX(0.129109289)) - /* c12 */ - MULTIPLY(tmp4, FIX(0.608465700)) - /* c8 */ - MULTIPLY(tmp5, FIX(0.948429952)), /* c4 */ - CONST_BITS+1); - z1 = MULTIPLY(tmp0 - tmp2, FIX(0.875087516)) - /* (c4+c6)/2 */ - MULTIPLY(tmp3 - tmp4, FIX(0.330085509)) - /* (c2-c10)/2 */ - MULTIPLY(tmp1 - tmp5, FIX(0.239678205)); /* (c8-c12)/2 */ - z2 = MULTIPLY(tmp0 + tmp2, FIX(0.073342435)) - /* (c4-c6)/2 */ - MULTIPLY(tmp3 + tmp4, FIX(0.709910013)) + /* (c2+c10)/2 */ - MULTIPLY(tmp1 + tmp5, FIX(0.368787494)); /* (c8+c12)/2 */ - - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - z2, CONST_BITS+1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.001514908)); /* c3 */ - tmp2 = MULTIPLY(tmp10 + tmp12, FIX(0.881514751)); /* c5 */ - tmp3 = MULTIPLY(tmp10 + tmp13, FIX(0.710284161)) + /* c7 */ - MULTIPLY(tmp14 + tmp15, FIX(0.256335874)); /* c11 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(tmp10, FIX(1.530003162)) + /* c3+c5+c7-c1 */ - MULTIPLY(tmp14, FIX(0.241438564)); /* c9-c11 */ - tmp4 = MULTIPLY(tmp14 - tmp15, FIX(0.710284161)) - /* c7 */ - MULTIPLY(tmp11 + tmp12, FIX(0.256335874)); /* c11 */ - tmp5 = MULTIPLY(tmp11 + tmp13, - FIX(0.881514751)); /* -c5 */ - tmp1 += tmp4 + tmp5 + - MULTIPLY(tmp11, FIX(0.634110155)) - /* c5+c9+c11-c3 */ - MULTIPLY(tmp14, FIX(1.773594819)); /* c1+c7 */ - tmp6 = MULTIPLY(tmp12 + tmp13, - FIX(0.497774438)); /* -c9 */ - tmp2 += tmp4 + tmp6 - - MULTIPLY(tmp12, FIX(1.190715098)) + /* c1+c5-c9-c11 */ - MULTIPLY(tmp15, FIX(1.711799069)); /* c3+c7 */ - tmp3 += tmp5 + tmp6 + - MULTIPLY(tmp13, FIX(1.670519935)) - /* c3+c5+c9-c7 */ - MULTIPLY(tmp15, FIX(1.319646532)); /* c1+c11 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 14x14 sample block. - */ - -GLOBAL(void) -jpeg_fdct_14x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - DCTELEM workspace[8*6]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/28). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); - tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - (tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE); - tmp13 += tmp13; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ - CONST_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ - CONST_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ - CONST_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[7] = (DCTELEM) (tmp0 - tmp10 + tmp3 - tmp11 - tmp6); - tmp3 <<= CONST_BITS; - tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ - dataptr[5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ - CONST_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ - dataptr[3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ - CONST_BITS); - dataptr[1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - - MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ - CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 14) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/14)**2 = 16/49, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/28) * 32/49. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; - tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+1); - tmp13 += tmp13; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ - CONST_BITS+1); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ - CONST_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ - CONST_BITS+1); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+1); - tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ - tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ - CONST_BITS+1); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ - CONST_BITS+1); - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 - - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ - - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ - CONST_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 15x15 sample block. - */ - -GLOBAL(void) -jpeg_fdct_15x15 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM workspace[8*7]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* cK represents sqrt(2) * cos(K*pi/30). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[14]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[13]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[12]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[11]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[10]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[9]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[8]); - tmp7 = GETJSAMPLE(elemptr[7]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[14]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[13]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[12]); - tmp13 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[11]); - tmp14 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[10]); - tmp15 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[9]); - tmp16 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[8]); - - z1 = tmp0 + tmp4 + tmp5; - z2 = tmp1 + tmp3 + tmp6; - z3 = tmp2 + tmp7; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) (z1 + z2 + z3 - 15 * CENTERJSAMPLE); - z3 += z3; - dataptr[6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z3, FIX(1.144122806)) - /* c6 */ - MULTIPLY(z2 - z3, FIX(0.437016024)), /* c12 */ - CONST_BITS); - tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; - z1 = MULTIPLY(tmp3 - tmp2, FIX(1.531135173)) - /* c2+c14 */ - MULTIPLY(tmp6 - tmp2, FIX(2.238241955)); /* c4+c8 */ - z2 = MULTIPLY(tmp5 - tmp2, FIX(0.798468008)) - /* c8-c14 */ - MULTIPLY(tmp0 - tmp2, FIX(0.091361227)); /* c2-c4 */ - z3 = MULTIPLY(tmp0 - tmp3, FIX(1.383309603)) + /* c2 */ - MULTIPLY(tmp6 - tmp5, FIX(0.946293579)) + /* c8 */ - MULTIPLY(tmp1 - tmp4, FIX(0.790569415)); /* (c6+c12)/2 */ - - dataptr[2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS); - dataptr[4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS); - - /* Odd part */ - - tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, - FIX(1.224744871)); /* c5 */ - tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.344997024)) + /* c3 */ - MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.831253876)); /* c9 */ - tmp12 = MULTIPLY(tmp12, FIX(1.224744871)); /* c5 */ - tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.406466353)) + /* c1 */ - MULTIPLY(tmp11 + tmp14, FIX(1.344997024)) + /* c3 */ - MULTIPLY(tmp13 + tmp15, FIX(0.575212477)); /* c11 */ - tmp0 = MULTIPLY(tmp13, FIX(0.475753014)) - /* c7-c11 */ - MULTIPLY(tmp14, FIX(0.513743148)) + /* c3-c9 */ - MULTIPLY(tmp16, FIX(1.700497885)) + tmp4 + tmp12; /* c1+c13 */ - tmp3 = MULTIPLY(tmp10, - FIX(0.355500862)) - /* -(c1-c7) */ - MULTIPLY(tmp11, FIX(2.176250899)) - /* c3+c9 */ - MULTIPLY(tmp15, FIX(0.869244010)) + tmp4 - tmp12; /* c11+c13 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3, CONST_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 15) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/15)**2 = 64/225, which we partially - * fold into the constant multipliers and final shifting: - * cK now represents sqrt(2) * cos(K*pi/30) * 256/225. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*3]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*2]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*1]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*0]; - tmp7 = dataptr[DCTSIZE*7]; - - tmp10 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*4]; - tmp13 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*3]; - tmp14 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*2]; - tmp15 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*1]; - tmp16 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*0]; - - z1 = tmp0 + tmp4 + tmp5; - z2 = tmp1 + tmp3 + tmp6; - z3 = tmp2 + tmp7; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + z2 + z3, FIX(1.137777778)), /* 256/225 */ - CONST_BITS+2); - z3 += z3; - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(z1 - z3, FIX(1.301757503)) - /* c6 */ - MULTIPLY(z2 - z3, FIX(0.497227121)), /* c12 */ - CONST_BITS+2); - tmp2 += ((tmp1 + tmp4) >> 1) - tmp7 - tmp7; - z1 = MULTIPLY(tmp3 - tmp2, FIX(1.742091575)) - /* c2+c14 */ - MULTIPLY(tmp6 - tmp2, FIX(2.546621957)); /* c4+c8 */ - z2 = MULTIPLY(tmp5 - tmp2, FIX(0.908479156)) - /* c8-c14 */ - MULTIPLY(tmp0 - tmp2, FIX(0.103948774)); /* c2-c4 */ - z3 = MULTIPLY(tmp0 - tmp3, FIX(1.573898926)) + /* c2 */ - MULTIPLY(tmp6 - tmp5, FIX(1.076671805)) + /* c8 */ - MULTIPLY(tmp1 - tmp4, FIX(0.899492312)); /* (c6+c12)/2 */ - - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z3, CONST_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(z2 + z3, CONST_BITS+2); - - /* Odd part */ - - tmp2 = MULTIPLY(tmp10 - tmp12 - tmp13 + tmp15 + tmp16, - FIX(1.393487498)); /* c5 */ - tmp1 = MULTIPLY(tmp10 - tmp14 - tmp15, FIX(1.530307725)) + /* c3 */ - MULTIPLY(tmp11 - tmp13 - tmp16, FIX(0.945782187)); /* c9 */ - tmp12 = MULTIPLY(tmp12, FIX(1.393487498)); /* c5 */ - tmp4 = MULTIPLY(tmp10 - tmp16, FIX(1.600246161)) + /* c1 */ - MULTIPLY(tmp11 + tmp14, FIX(1.530307725)) + /* c3 */ - MULTIPLY(tmp13 + tmp15, FIX(0.654463974)); /* c11 */ - tmp0 = MULTIPLY(tmp13, FIX(0.541301207)) - /* c7-c11 */ - MULTIPLY(tmp14, FIX(0.584525538)) + /* c3-c9 */ - MULTIPLY(tmp16, FIX(1.934788705)) + tmp4 + tmp12; /* c1+c13 */ - tmp3 = MULTIPLY(tmp10, - FIX(0.404480980)) - /* -(c1-c7) */ - MULTIPLY(tmp11, FIX(2.476089912)) - /* c3+c9 */ - MULTIPLY(tmp15, FIX(0.989006518)) + tmp4 - tmp12; /* c11+c13 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3, CONST_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 16x16 sample block. - */ - -GLOBAL(void) -jpeg_fdct_16x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - DCTELEM workspace[DCTSIZE2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* cK represents sqrt(2) * cos(K*pi/32). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == DCTSIZE * 2) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/16)**2 = 1/2**2. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+2); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS+PASS1_BITS+2); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+10 */ - CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS+PASS1_BITS+2); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+2); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+2); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 16x8 sample block. - * - * 16-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_16x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */ - - dataptr = data; - ctr = 0; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) + GETJSAMPLE(elemptr[8]); - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[15]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[14]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[13]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[12]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[11]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[10]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[9]); - tmp7 = GETJSAMPLE(elemptr[7]) - GETJSAMPLE(elemptr[8]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 16 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by 8/16 = 1/2. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS+1); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS+PASS1_BITS+1); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, - CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 14x7 sample block. - * - * 14-point FDCT in pass 1 (rows), 7-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_14x7 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero bottom row of output coefficient block. */ - MEMZERO(&data[DCTSIZE*7], SIZEOF(DCTELEM) * DCTSIZE); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */ - - dataptr = data; - for (ctr = 0; ctr < 7; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[11]); - tmp13 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) + GETJSAMPLE(elemptr[7]); - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[13]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[12]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[11]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[10]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[9]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[8]); - tmp6 = GETJSAMPLE(elemptr[6]) - GETJSAMPLE(elemptr[7]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 + tmp13 - 14 * CENTERJSAMPLE) << PASS1_BITS); - tmp13 += tmp13; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.274162392)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.314692123)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.881747734)), /* c8 */ - CONST_BITS-PASS1_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(1.105676686)); /* c6 */ - - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.273079590)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.613604268)), /* c10 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.719280954)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(1.378756276)), /* c2 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[7] = (DCTELEM) ((tmp0 - tmp10 + tmp3 - tmp11 - tmp6) << PASS1_BITS); - tmp3 <<= CONST_BITS; - tmp10 = MULTIPLY(tmp10, - FIX(0.158341681)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(1.405321284)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(1.197448846)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.752406978)); /* c9 */ - dataptr[5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(2.373959773)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(1.119999435)), /* c1+c11-c9 */ - CONST_BITS-PASS1_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(1.334852607)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.467085129)); /* c11 */ - dataptr[3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.424103948)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(3.069855259)), /* c1+c5+c11 */ - CONST_BITS-PASS1_BITS); - dataptr[1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 + tmp6 - - MULTIPLY(tmp0 + tmp6, FIX(1.126980169)), /* c3+c5-c1 */ - CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/14)*(8/7) = 32/49, which we - * partially fold into the constant multipliers and final shifting: - * 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14) * 64/49. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*6]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*5]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*4]; - tmp3 = dataptr[DCTSIZE*3]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*6]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*5]; - tmp12 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*4]; - - z1 = tmp0 + tmp2; - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(z1 + tmp1 + tmp3, FIX(1.306122449)), /* 64/49 */ - CONST_BITS+PASS1_BITS+1); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.461784020)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(1.202428084)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.411026446)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS+PASS1_BITS+1); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(1.151670509)); /* c4 */ - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.923568041)), /* c2+c6-c4 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(1.221765677)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.222383464)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.800824523)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.801442310)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(2.443531355)); /* c3+c1-c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp0, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp1, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp2, CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 12x6 sample block. - * - * 12-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_12x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 2 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*6], SIZEOF(DCTELEM) * DCTSIZE * 2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) + GETJSAMPLE(elemptr[6]); - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[11]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[10]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[9]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[8]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[7]); - tmp5 = GETJSAMPLE(elemptr[5]) - GETJSAMPLE(elemptr[6]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 12 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[6] = (DCTELEM) ((tmp13 - tmp14 - tmp15) << PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.224744871)), /* c4 */ - CONST_BITS-PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(tmp14 - tmp15 + MULTIPLY(tmp13 + tmp15, FIX(1.366025404)), /* c2 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX_0_541196100); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX_0_765366865); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX_1_847759065); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.121971054)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.860918669)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.580774953)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.184591911)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.184591911)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.339493912)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.860918669)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.725788011)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(1.121971054)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.306562965)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX_0_541196100); /* c9 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp10, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp11, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/12)*(8/6) = 8/9, which we - * partially fold into the constant multipliers and final shifting: - * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 10x5 sample block. - * - * 10-point FDCT in pass 1 (rows), 5-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_10x5 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 3 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*5], SIZEOF(DCTELEM) * DCTSIZE * 3); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */ - - dataptr = data; - for (ctr = 0; ctr < 5; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[8]); - tmp12 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) + GETJSAMPLE(elemptr[5]); - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[9]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[8]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[7]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[6]); - tmp4 = GETJSAMPLE(elemptr[4]) - GETJSAMPLE(elemptr[5]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 + tmp12 - 10 * CENTERJSAMPLE) << PASS1_BITS); - tmp12 += tmp12; - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.144122806)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.437016024)), /* c8 */ - CONST_BITS-PASS1_BITS); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(0.831253876)); /* c6 */ - dataptr[2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.513743148)), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.176250899)), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[5] = (DCTELEM) ((tmp10 - tmp11 - tmp2) << PASS1_BITS); - tmp2 <<= CONST_BITS; - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.396802247)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.260073511)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.642039522)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.221231742)), /* c9 */ - CONST_BITS-PASS1_BITS); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(0.951056516)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.587785252)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.309016994)) + /* (c3-c7)/2 */ - (tmp11 << (CONST_BITS - 1)) - tmp2; - dataptr[3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS-PASS1_BITS); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/10)*(8/5) = 32/25, which we - * fold into the constant multipliers: - * 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10) * 32/25. - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*3]; - tmp2 = dataptr[DCTSIZE*2]; - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*4]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(1.011928851)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.452548340)); /* (c2-c4)/2 */ - dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(1.064004961)); /* c3 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.657591230)), /* c1-c3 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.785601151)), /* c1+c3 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on an 8x4 sample block. - * - * 8-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_8x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Zero 4 bottom rows of output coefficient block. */ - MEMZERO(&data[DCTSIZE*4], SIZEOF(DCTELEM) * DCTSIZE * 4); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by 8/4 = 2, which we add here. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << (PASS1_BITS+1)); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-2); - dataptr[2] = (DCTELEM) RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS-1); - dataptr[6] = (DCTELEM) RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS-1); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-2); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS-1); - dataptr[5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS-1); - dataptr[7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - - dataptr = data; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS+PASS1_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x3 sample block. - * - * 6-point FDCT in pass 1 (rows), 3-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_6x3 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS-1); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS-1); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << (PASS1_BITS+1))); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << (PASS1_BITS+1)); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << (PASS1_BITS+1))); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*2]; - tmp1 = dataptr[DCTSIZE*1]; - - tmp2 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(1.257078722)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(2.177324216)), /* c1 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x2 sample block. - * - * 4-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_4x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by (8/4)*(8/2) = 2**3, which we add here. */ - /* 4-point FDCT kernel, */ - /* cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. */ - - dataptr = data; - for (ctr = 0; ctr < 2; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+3)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+3)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-4); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-3); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-3); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = dataptr[DCTSIZE*0] + (ONE << (PASS1_BITS-1)); - tmp1 = dataptr[DCTSIZE*1]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp0 + tmp1, PASS1_BITS); - - /* Odd part */ - - dataptr[DCTSIZE*1] = (DCTELEM) RIGHT_SHIFT(tmp0 - tmp1, PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x1 sample block. - * - * 2-point FDCT in pass 1 (rows), 1-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_2x1 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - JSAMPROW elemptr; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - elemptr = sample_data[0] + start_col; - - tmp0 = GETJSAMPLE(elemptr[0]); - tmp1 = GETJSAMPLE(elemptr[1]); - - /* We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/2)*(8/1) = 2**5. - */ - - /* Even part */ - /* Apply unsigned->signed conversion */ - data[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); - - /* Odd part */ - data[1] = (DCTELEM) ((tmp0 - tmp1) << 5); -} - - -/* - * Perform the forward DCT on an 8x16 sample block. - * - * 8-point FDCT in pass 1 (rows), 16-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_8x16 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16, tmp17; - INT32 z1; - DCTELEM workspace[DCTSIZE2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) + GETJSAMPLE(elemptr[4]); - - tmp10 = tmp0 + tmp3; - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[7]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[6]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[5]); - tmp3 = GETJSAMPLE(elemptr[3]) - GETJSAMPLE(elemptr[4]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp10 + tmp11 - 8 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, FIX_0_765366865), - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 - MULTIPLY(tmp13, FIX_1_847759065), - CONST_BITS-PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[1] = (DCTELEM) DESCALE(tmp0 + tmp10 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1 + tmp11 + tmp13, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2 + tmp11 + tmp12, CONST_BITS-PASS1_BITS); - dataptr[7] = (DCTELEM) DESCALE(tmp3 + tmp10 + tmp13, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == DCTSIZE * 2) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by 8/16 = 1/2. - * 16-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - - dataptr = data; - wsptr = workspace; - for (ctr = DCTSIZE-1; ctr >= 0; ctr--) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] + wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] + wsptr[DCTSIZE*0]; - - tmp10 = tmp0 + tmp7; - tmp14 = tmp0 - tmp7; - tmp11 = tmp1 + tmp6; - tmp15 = tmp1 - tmp6; - tmp12 = tmp2 + tmp5; - tmp16 = tmp2 - tmp5; - tmp13 = tmp3 + tmp4; - tmp17 = tmp3 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*4]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*3]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*2]; - tmp6 = dataptr[DCTSIZE*6] - wsptr[DCTSIZE*1]; - tmp7 = dataptr[DCTSIZE*7] - wsptr[DCTSIZE*0]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(tmp10 + tmp11 + tmp12 + tmp13, PASS1_BITS+1); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(1.306562965)) + /* c4[16] = c2[8] */ - MULTIPLY(tmp11 - tmp12, FIX_0_541196100), /* c12[16] = c6[8] */ - CONST_BITS+PASS1_BITS+1); - - tmp10 = MULTIPLY(tmp17 - tmp15, FIX(0.275899379)) + /* c14[16] = c7[8] */ - MULTIPLY(tmp14 - tmp16, FIX(1.387039845)); /* c2[16] = c1[8] */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp15, FIX(1.451774982)) /* c6+c14 */ - + MULTIPLY(tmp16, FIX(2.172734804)), /* c2+c10 */ - CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(0.211164243)) /* c2-c6 */ - - MULTIPLY(tmp17, FIX(1.061594338)), /* c10+c14 */ - CONST_BITS+PASS1_BITS+1); - - /* Odd part */ - - tmp11 = MULTIPLY(tmp0 + tmp1, FIX(1.353318001)) + /* c3 */ - MULTIPLY(tmp6 - tmp7, FIX(0.410524528)); /* c13 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(1.247225013)) + /* c5 */ - MULTIPLY(tmp5 + tmp7, FIX(0.666655658)); /* c11 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(1.093201867)) + /* c7 */ - MULTIPLY(tmp4 - tmp7, FIX(0.897167586)); /* c9 */ - tmp14 = MULTIPLY(tmp1 + tmp2, FIX(0.138617169)) + /* c15 */ - MULTIPLY(tmp6 - tmp5, FIX(1.407403738)); /* c1 */ - tmp15 = MULTIPLY(tmp1 + tmp3, - FIX(0.666655658)) + /* -c11 */ - MULTIPLY(tmp4 + tmp6, - FIX(1.247225013)); /* -c5 */ - tmp16 = MULTIPLY(tmp2 + tmp3, - FIX(1.353318001)) + /* -c3 */ - MULTIPLY(tmp5 - tmp4, FIX(0.410524528)); /* c13 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(tmp0, FIX(2.286341144)) + /* c7+c5+c3-c1 */ - MULTIPLY(tmp7, FIX(0.779653625)); /* c15+c13-c11+c9 */ - tmp11 += tmp14 + tmp15 + MULTIPLY(tmp1, FIX(0.071888074)) /* c9-c3-c15+c11 */ - - MULTIPLY(tmp6, FIX(1.663905119)); /* c7+c13+c1-c5 */ - tmp12 += tmp14 + tmp16 - MULTIPLY(tmp2, FIX(1.125726048)) /* c7+c5+c15-c3 */ - + MULTIPLY(tmp5, FIX(1.227391138)); /* c9-c11+c1-c13 */ - tmp13 += tmp15 + tmp16 + MULTIPLY(tmp3, FIX(1.065388962)) /* c15+c3+c11-c7 */ - + MULTIPLY(tmp4, FIX(2.167985692)); /* c1+c13+c5-c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS+1); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS+1); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 7x14 sample block. - * - * 7-point FDCT in pass 1 (rows), 14-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_7x14 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 z1, z2, z3; - DCTELEM workspace[8*6]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 7-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[6]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[5]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[4]); - tmp3 = GETJSAMPLE(elemptr[3]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[6]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[5]); - tmp12 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[4]); - - z1 = tmp0 + tmp2; - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((z1 + tmp1 + tmp3 - 7 * CENTERJSAMPLE) << PASS1_BITS); - tmp3 += tmp3; - z1 -= tmp3; - z1 -= tmp3; - z1 = MULTIPLY(z1, FIX(0.353553391)); /* (c2+c6-c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp2, FIX(0.920609002)); /* (c2+c4-c6)/2 */ - z3 = MULTIPLY(tmp1 - tmp2, FIX(0.314692123)); /* c6 */ - dataptr[2] = (DCTELEM) DESCALE(z1 + z2 + z3, CONST_BITS-PASS1_BITS); - z1 -= z2; - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.881747734)); /* c4 */ - dataptr[4] = (DCTELEM) - DESCALE(z2 + z3 - MULTIPLY(tmp1 - tmp3, FIX(0.707106781)), /* c2+c6-c4 */ - CONST_BITS-PASS1_BITS); - dataptr[6] = (DCTELEM) DESCALE(z1 + z2, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp1 = MULTIPLY(tmp10 + tmp11, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(tmp10 - tmp11, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(tmp11 + tmp12, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - tmp3 = MULTIPLY(tmp10 + tmp12, FIX(0.613604268)); /* c5 */ - tmp0 += tmp3; - tmp2 += tmp3 + MULTIPLY(tmp12, FIX(1.870828693)); /* c3+c1-c5 */ - - dataptr[1] = (DCTELEM) DESCALE(tmp0, CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) DESCALE(tmp1, CONST_BITS-PASS1_BITS); - dataptr[5] = (DCTELEM) DESCALE(tmp2, CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 14) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/7)*(8/14) = 32/49, which we - * fold into the constant multipliers: - * 14-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/28) * 32/49. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*3]; - tmp13 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] + wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] + wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] + dataptr[DCTSIZE*7]; - - tmp10 = tmp0 + tmp6; - tmp14 = tmp0 - tmp6; - tmp11 = tmp1 + tmp5; - tmp15 = tmp1 - tmp5; - tmp12 = tmp2 + tmp4; - tmp16 = tmp2 - tmp4; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*3]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*2]; - tmp4 = dataptr[DCTSIZE*4] - wsptr[DCTSIZE*1]; - tmp5 = dataptr[DCTSIZE*5] - wsptr[DCTSIZE*0]; - tmp6 = dataptr[DCTSIZE*6] - dataptr[DCTSIZE*7]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12 + tmp13, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+PASS1_BITS); - tmp13 += tmp13; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp13, FIX(0.832106052)) + /* c4 */ - MULTIPLY(tmp11 - tmp13, FIX(0.205513223)) - /* c12 */ - MULTIPLY(tmp12 - tmp13, FIX(0.575835255)), /* c8 */ - CONST_BITS+PASS1_BITS); - - tmp10 = MULTIPLY(tmp14 + tmp15, FIX(0.722074570)); /* c6 */ - - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp14, FIX(0.178337691)) /* c2-c6 */ - + MULTIPLY(tmp16, FIX(0.400721155)), /* c10 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp15, FIX(1.122795725)) /* c6+c10 */ - - MULTIPLY(tmp16, FIX(0.900412262)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp1 + tmp2; - tmp11 = tmp5 - tmp4; - dataptr[DCTSIZE*7] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp10 + tmp3 - tmp11 - tmp6, - FIX(0.653061224)), /* 32/49 */ - CONST_BITS+PASS1_BITS); - tmp3 = MULTIPLY(tmp3 , FIX(0.653061224)); /* 32/49 */ - tmp10 = MULTIPLY(tmp10, - FIX(0.103406812)); /* -c13 */ - tmp11 = MULTIPLY(tmp11, FIX(0.917760839)); /* c1 */ - tmp10 += tmp11 - tmp3; - tmp11 = MULTIPLY(tmp0 + tmp2, FIX(0.782007410)) + /* c5 */ - MULTIPLY(tmp4 + tmp6, FIX(0.491367823)); /* c9 */ - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + tmp11 - MULTIPLY(tmp2, FIX(1.550341076)) /* c3+c5-c13 */ - + MULTIPLY(tmp4, FIX(0.731428202)), /* c1+c11-c9 */ - CONST_BITS+PASS1_BITS); - tmp12 = MULTIPLY(tmp0 + tmp1, FIX(0.871740478)) + /* c3 */ - MULTIPLY(tmp5 - tmp6, FIX(0.305035186)); /* c11 */ - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(tmp10 + tmp12 - MULTIPLY(tmp1, FIX(0.276965844)) /* c3-c9-c13 */ - - MULTIPLY(tmp5, FIX(2.004803435)), /* c1+c5+c11 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp11 + tmp12 + tmp3 - - MULTIPLY(tmp0, FIX(0.735987049)) /* c3+c5-c1 */ - - MULTIPLY(tmp6, FIX(0.082925825)), /* c9-c11-c13 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 6x12 sample block. - * - * 6-point FDCT in pass 1 (rows), 12-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_6x12 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - DCTELEM workspace[8*4]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[5]); - tmp11 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) + GETJSAMPLE(elemptr[3]); - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[5]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[4]); - tmp2 = GETJSAMPLE(elemptr[2]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp11 - 6 * CENTERJSAMPLE) << PASS1_BITS); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(1.224744871)), /* c2 */ - CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(0.707106781)), /* c4 */ - CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = DESCALE(MULTIPLY(tmp0 + tmp2, FIX(0.366025404)), /* c5 */ - CONST_BITS-PASS1_BITS); - - dataptr[1] = (DCTELEM) (tmp10 + ((tmp0 + tmp1) << PASS1_BITS)); - dataptr[3] = (DCTELEM) ((tmp0 - tmp1 - tmp2) << PASS1_BITS); - dataptr[5] = (DCTELEM) (tmp10 + ((tmp2 - tmp1) << PASS1_BITS)); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 12) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/12) = 8/9, which we - * fold into the constant multipliers: - * 12-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/24) * 8/9. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] + wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] + wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] + dataptr[DCTSIZE*6]; - - tmp10 = tmp0 + tmp5; - tmp13 = tmp0 - tmp5; - tmp11 = tmp1 + tmp4; - tmp14 = tmp1 - tmp4; - tmp12 = tmp2 + tmp3; - tmp15 = tmp2 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*2]; - tmp2 = dataptr[DCTSIZE*2] - wsptr[DCTSIZE*1]; - tmp3 = dataptr[DCTSIZE*3] - wsptr[DCTSIZE*0]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*7]; - tmp5 = dataptr[DCTSIZE*5] - dataptr[DCTSIZE*6]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(MULTIPLY(tmp13 - tmp14 - tmp15, FIX(0.888888889)), /* 8/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.088662108)), /* c4 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp14 - tmp15, FIX(0.888888889)) + /* 8/9 */ - MULTIPLY(tmp13 + tmp15, FIX(1.214244803)), /* c2 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp1 + tmp4, FIX(0.481063200)); /* c9 */ - tmp14 = tmp10 + MULTIPLY(tmp1, FIX(0.680326102)); /* c3-c9 */ - tmp15 = tmp10 - MULTIPLY(tmp4, FIX(1.642452502)); /* c3+c9 */ - tmp12 = MULTIPLY(tmp0 + tmp2, FIX(0.997307603)); /* c5 */ - tmp13 = MULTIPLY(tmp0 + tmp3, FIX(0.765261039)); /* c7 */ - tmp10 = tmp12 + tmp13 + tmp14 - MULTIPLY(tmp0, FIX(0.516244403)) /* c5+c7-c1 */ - + MULTIPLY(tmp5, FIX(0.164081699)); /* c11 */ - tmp11 = MULTIPLY(tmp2 + tmp3, - FIX(0.164081699)); /* -c11 */ - tmp12 += tmp11 - tmp15 - MULTIPLY(tmp2, FIX(2.079550144)) /* c1+c5-c11 */ - + MULTIPLY(tmp5, FIX(0.765261039)); /* c7 */ - tmp13 += tmp11 - tmp14 + MULTIPLY(tmp3, FIX(0.645144899)) /* c1+c11-c7 */ - - MULTIPLY(tmp5, FIX(0.997307603)); /* c5 */ - tmp11 = tmp15 + MULTIPLY(tmp0 - tmp3, FIX(1.161389302)) /* c3 */ - - MULTIPLY(tmp2 + tmp5, FIX(0.481063200)); /* c9 */ - - dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp10, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp11, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 5x10 sample block. - * - * 5-point FDCT in pass 1 (rows), 10-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_5x10 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4; - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - DCTELEM workspace[8*2]; - DCTELEM *dataptr; - DCTELEM *wsptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* 5-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */ - - dataptr = data; - ctr = 0; - for (;;) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[3]); - tmp2 = GETJSAMPLE(elemptr[2]); - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - - tmp0 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[4]); - tmp1 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[3]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp10 + tmp2 - 5 * CENTERJSAMPLE) << PASS1_BITS); - tmp11 = MULTIPLY(tmp11, FIX(0.790569415)); /* (c2+c4)/2 */ - tmp10 -= tmp2 << 2; - tmp10 = MULTIPLY(tmp10, FIX(0.353553391)); /* (c2-c4)/2 */ - dataptr[2] = (DCTELEM) DESCALE(tmp11 + tmp10, CONST_BITS-PASS1_BITS); - dataptr[4] = (DCTELEM) DESCALE(tmp11 - tmp10, CONST_BITS-PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp1, FIX(0.831253876)); /* c3 */ - - dataptr[1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0, FIX(0.513743148)), /* c1-c3 */ - CONST_BITS-PASS1_BITS); - dataptr[3] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp1, FIX(2.176250899)), /* c1+c3 */ - CONST_BITS-PASS1_BITS); - - ctr++; - - if (ctr != DCTSIZE) { - if (ctr == 10) - break; /* Done. */ - dataptr += DCTSIZE; /* advance pointer to next row */ - } else - dataptr = workspace; /* switch pointer to extended workspace */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/5)*(8/10) = 32/25, which we - * fold into the constant multipliers: - * 10-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/20) * 32/25. - */ - - dataptr = data; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] + wsptr[DCTSIZE*0]; - tmp12 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] + dataptr[DCTSIZE*5]; - - tmp10 = tmp0 + tmp4; - tmp13 = tmp0 - tmp4; - tmp11 = tmp1 + tmp3; - tmp14 = tmp1 - tmp3; - - tmp0 = dataptr[DCTSIZE*0] - wsptr[DCTSIZE*1]; - tmp1 = dataptr[DCTSIZE*1] - wsptr[DCTSIZE*0]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*7]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*6]; - tmp4 = dataptr[DCTSIZE*4] - dataptr[DCTSIZE*5]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11 + tmp12, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp12 += tmp12; - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp12, FIX(1.464477191)) - /* c4 */ - MULTIPLY(tmp11 - tmp12, FIX(0.559380511)), /* c8 */ - CONST_BITS+PASS1_BITS); - tmp10 = MULTIPLY(tmp13 + tmp14, FIX(1.064004961)); /* c6 */ - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp13, FIX(0.657591230)), /* c2-c6 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - DESCALE(tmp10 - MULTIPLY(tmp14, FIX(2.785601151)), /* c2+c6 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = tmp0 + tmp4; - tmp11 = tmp1 - tmp3; - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp2, FIX(1.28)), /* 32/25 */ - CONST_BITS+PASS1_BITS); - tmp2 = MULTIPLY(tmp2, FIX(1.28)); /* 32/25 */ - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(MULTIPLY(tmp0, FIX(1.787906876)) + /* c1 */ - MULTIPLY(tmp1, FIX(1.612894094)) + tmp2 + /* c3 */ - MULTIPLY(tmp3, FIX(0.821810588)) + /* c7 */ - MULTIPLY(tmp4, FIX(0.283176630)), /* c9 */ - CONST_BITS+PASS1_BITS); - tmp12 = MULTIPLY(tmp0 - tmp4, FIX(1.217352341)) - /* (c3+c7)/2 */ - MULTIPLY(tmp1 + tmp3, FIX(0.752365123)); /* (c1-c9)/2 */ - tmp13 = MULTIPLY(tmp10 + tmp11, FIX(0.395541753)) + /* (c3-c7)/2 */ - MULTIPLY(tmp11, FIX(0.64)) - tmp2; /* 16/25 */ - dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp12 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp12 - tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - wsptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 4x8 sample block. - * - * 4-point FDCT in pass 1 (rows), 8-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_4x8 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We must also scale the output by 8/4 = 2, which we add here. */ - /* 4-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */ - - dataptr = data; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[3]); - tmp1 = GETJSAMPLE(elemptr[1]) + GETJSAMPLE(elemptr[2]); - - tmp10 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[3]); - tmp11 = GETJSAMPLE(elemptr[1]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 4 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) ((tmp0 - tmp1) << (PASS1_BITS+1)); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-2); - - dataptr[1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS-1); - dataptr[3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - /* Even part per LL&M figure 1 --- note that published figure is faulty; - * rotator "sqrt(2)*c1" should be "sqrt(2)*c6". - */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4]; - - /* Add fudge factor here for final descale. */ - tmp10 = tmp0 + tmp3 + (ONE << (PASS1_BITS-1)); - tmp12 = tmp0 - tmp3; - tmp11 = tmp1 + tmp2; - tmp13 = tmp1 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5]; - tmp3 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4]; - - dataptr[DCTSIZE*0] = (DCTELEM) RIGHT_SHIFT(tmp10 + tmp11, PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) RIGHT_SHIFT(tmp10 - tmp11, PASS1_BITS); - - z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100); - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - dataptr[DCTSIZE*2] = (DCTELEM) - RIGHT_SHIFT(z1 + MULTIPLY(tmp12, FIX_0_765366865), CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*6] = (DCTELEM) - RIGHT_SHIFT(z1 - MULTIPLY(tmp13, FIX_1_847759065), CONST_BITS+PASS1_BITS); - - /* Odd part per figure 8 --- note paper omits factor of sqrt(2). - * 8-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - * i0..i3 in the paper are tmp0..tmp3 here. - */ - - tmp10 = tmp0 + tmp3; - tmp11 = tmp1 + tmp2; - tmp12 = tmp0 + tmp2; - tmp13 = tmp1 + tmp3; - z1 = MULTIPLY(tmp12 + tmp13, FIX_1_175875602); /* c3 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS+PASS1_BITS-1); - - tmp0 = MULTIPLY(tmp0, FIX_1_501321110); /* c1+c3-c5-c7 */ - tmp1 = MULTIPLY(tmp1, FIX_3_072711026); /* c1+c3+c5-c7 */ - tmp2 = MULTIPLY(tmp2, FIX_2_053119869); /* c1+c3-c5+c7 */ - tmp3 = MULTIPLY(tmp3, FIX_0_298631336); /* -c1+c3+c5-c7 */ - tmp10 = MULTIPLY(tmp10, - FIX_0_899976223); /* c7-c3 */ - tmp11 = MULTIPLY(tmp11, - FIX_2_562915447); /* -c1-c3 */ - tmp12 = MULTIPLY(tmp12, - FIX_0_390180644); /* c5-c3 */ - tmp13 = MULTIPLY(tmp13, - FIX_1_961570560); /* -c3-c5 */ - - tmp12 += z1; - tmp13 += z1; - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + tmp10 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp1 + tmp11 + tmp13, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - RIGHT_SHIFT(tmp2 + tmp11 + tmp12, CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*7] = (DCTELEM) - RIGHT_SHIFT(tmp3 + tmp10 + tmp13, CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 3x6 sample block. - * - * 3-point FDCT in pass 1 (rows), 6-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_3x6 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1, tmp2; - INT32 tmp10, tmp11, tmp12; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - /* We scale the results further by 2 as part of output adaption */ - /* scaling for different DCT size. */ - /* 3-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */ - - dataptr = data; - for (ctr = 0; ctr < 6; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]) + GETJSAMPLE(elemptr[2]); - tmp1 = GETJSAMPLE(elemptr[1]); - - tmp2 = GETJSAMPLE(elemptr[0]) - GETJSAMPLE(elemptr[2]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) - ((tmp0 + tmp1 - 3 * CENTERJSAMPLE) << (PASS1_BITS+1)); - dataptr[2] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp1, FIX(0.707106781)), /* c2 */ - CONST_BITS-PASS1_BITS-1); - - /* Odd part */ - - dataptr[1] = (DCTELEM) - DESCALE(MULTIPLY(tmp2, FIX(1.224744871)), /* c1 */ - CONST_BITS-PASS1_BITS-1); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We remove the PASS1_BITS scaling, but leave the results scaled up - * by an overall factor of 8. - * We must also scale the output by (8/6)*(8/3) = 32/9, which we partially - * fold into the constant multipliers (other part was done in pass 1): - * 6-point FDCT kernel, cK represents sqrt(2) * cos(K*pi/12) * 16/9. - */ - - dataptr = data; - for (ctr = 0; ctr < 3; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*5]; - tmp11 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*3]; - - tmp10 = tmp0 + tmp2; - tmp12 = tmp0 - tmp2; - - tmp0 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*5]; - tmp1 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*4]; - tmp2 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*3]; - - dataptr[DCTSIZE*0] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 + tmp11, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*2] = (DCTELEM) - DESCALE(MULTIPLY(tmp12, FIX(2.177324216)), /* c2 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*4] = (DCTELEM) - DESCALE(MULTIPLY(tmp10 - tmp11 - tmp11, FIX(1.257078722)), /* c4 */ - CONST_BITS+PASS1_BITS); - - /* Odd part */ - - tmp10 = MULTIPLY(tmp0 + tmp2, FIX(0.650711829)); /* c5 */ - - dataptr[DCTSIZE*1] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp0 + tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - DESCALE(MULTIPLY(tmp0 - tmp1 - tmp2, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - dataptr[DCTSIZE*5] = (DCTELEM) - DESCALE(tmp10 + MULTIPLY(tmp2 - tmp1, FIX(1.777777778)), /* 16/9 */ - CONST_BITS+PASS1_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 2x4 sample block. - * - * 2-point FDCT in pass 1 (rows), 4-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_2x4 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - INT32 tmp10, tmp11; - DCTELEM *dataptr; - JSAMPROW elemptr; - int ctr; - SHIFT_TEMPS - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - /* Pass 1: process rows. */ - /* Note results are scaled up by sqrt(8) compared to a true DCT. */ - /* We must also scale the output by (8/2)*(8/4) = 2**3, which we add here. */ - - dataptr = data; - for (ctr = 0; ctr < 4; ctr++) { - elemptr = sample_data[ctr] + start_col; - - /* Even part */ - - tmp0 = GETJSAMPLE(elemptr[0]); - tmp1 = GETJSAMPLE(elemptr[1]); - - /* Apply unsigned->signed conversion */ - dataptr[0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 3); - - /* Odd part */ - - dataptr[1] = (DCTELEM) ((tmp0 - tmp1) << 3); - - dataptr += DCTSIZE; /* advance pointer to next row */ - } - - /* Pass 2: process columns. - * We leave the results scaled up by an overall factor of 8. - * 4-point FDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point FDCT]. - */ - - dataptr = data; - for (ctr = 0; ctr < 2; ctr++) { - /* Even part */ - - tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*3]; - tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*2]; - - tmp10 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*3]; - tmp11 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*2]; - - dataptr[DCTSIZE*0] = (DCTELEM) (tmp0 + tmp1); - dataptr[DCTSIZE*2] = (DCTELEM) (tmp0 - tmp1); - - /* Odd part */ - - tmp0 = MULTIPLY(tmp10 + tmp11, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-1); - - dataptr[DCTSIZE*1] = (DCTELEM) - RIGHT_SHIFT(tmp0 + MULTIPLY(tmp10, FIX_0_765366865), /* c2-c6 */ - CONST_BITS); - dataptr[DCTSIZE*3] = (DCTELEM) - RIGHT_SHIFT(tmp0 - MULTIPLY(tmp11, FIX_1_847759065), /* c2+c6 */ - CONST_BITS); - - dataptr++; /* advance pointer to next column */ - } -} - - -/* - * Perform the forward DCT on a 1x2 sample block. - * - * 1-point FDCT in pass 1 (rows), 2-point in pass 2 (columns). - */ - -GLOBAL(void) -jpeg_fdct_1x2 (DCTELEM * data, JSAMPARRAY sample_data, JDIMENSION start_col) -{ - INT32 tmp0, tmp1; - - /* Pre-zero output coefficient block. */ - MEMZERO(data, SIZEOF(DCTELEM) * DCTSIZE2); - - tmp0 = GETJSAMPLE(sample_data[0][start_col]); - tmp1 = GETJSAMPLE(sample_data[1][start_col]); - - /* We leave the results scaled up by an overall factor of 8. - * We must also scale the output by (8/1)*(8/2) = 2**5. - */ - - /* Even part */ - /* Apply unsigned->signed conversion */ - data[DCTSIZE*0] = (DCTELEM) ((tmp0 + tmp1 - 2 * CENTERJSAMPLE) << 5); - - /* Odd part */ - data[DCTSIZE*1] = (DCTELEM) ((tmp0 - tmp1) << 5); -} - -#endif /* DCT_SCALING_SUPPORTED */ -#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpeg/jidctflt.c b/jpeg/jidctflt.c deleted file mode 100755 index 23ae9d3..0000000 --- a/jpeg/jidctflt.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * jidctflt.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * Modified 2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a floating-point implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * This implementation should be more accurate than either of the integer - * IDCT implementations. However, it may not give the same results on all - * machines because of differences in roundoff behavior. Speed will depend - * on the hardware's floating point capacity. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with a fixed-point - * implementation, accuracy is lost due to imprecise representation of the - * scaled quantization values. However, that problem does not arise if - * we use floating point arithmetic. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_FLOAT_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce a float result. - */ - -#define DEQUANTIZE(coef,quantval) (((FAST_FLOAT) (coef)) * (quantval)) - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - FAST_FLOAT tmp10, tmp11, tmp12, tmp13; - FAST_FLOAT z5, z10, z11, z12, z13; - JCOEFPTR inptr; - FLOAT_MULT_TYPE * quantptr; - FAST_FLOAT * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = cinfo->sample_range_limit; - int ctr; - FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */ - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (FLOAT_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - FAST_FLOAT dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = tmp0 + tmp2; /* phase 3 */ - tmp11 = tmp0 - tmp2; - - tmp13 = tmp1 + tmp3; /* phases 5-3 */ - tmp12 = (tmp1 - tmp3) * ((FAST_FLOAT) 1.414213562) - tmp13; /* 2*c4 */ - - tmp0 = tmp10 + tmp13; /* phase 2 */ - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z13 = tmp6 + tmp5; /* phase 6 */ - z10 = tmp6 - tmp5; - z11 = tmp4 + tmp7; - z12 = tmp4 - tmp7; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */ - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ - tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 - tmp5; - - wsptr[DCTSIZE*0] = tmp0 + tmp7; - wsptr[DCTSIZE*7] = tmp0 - tmp7; - wsptr[DCTSIZE*1] = tmp1 + tmp6; - wsptr[DCTSIZE*6] = tmp1 - tmp6; - wsptr[DCTSIZE*2] = tmp2 + tmp5; - wsptr[DCTSIZE*5] = tmp2 - tmp5; - wsptr[DCTSIZE*3] = tmp3 + tmp4; - wsptr[DCTSIZE*4] = tmp3 - tmp4; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * And testing floats for zero is relatively expensive, so we don't bother. - */ - - /* Even part */ - - /* Apply signed->unsigned and prepare float->int conversion */ - z5 = wsptr[0] + ((FAST_FLOAT) CENTERJSAMPLE + (FAST_FLOAT) 0.5); - tmp10 = z5 + wsptr[4]; - tmp11 = z5 - wsptr[4]; - - tmp13 = wsptr[2] + wsptr[6]; - tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13; - - tmp0 = tmp10 + tmp13; - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - z13 = wsptr[5] + wsptr[3]; - z10 = wsptr[5] - wsptr[3]; - z11 = wsptr[1] + wsptr[7]; - z12 = wsptr[1] - wsptr[7]; - - tmp7 = z11 + z13; - tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); - - z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */ - tmp10 = z5 - z12 * ((FAST_FLOAT) 1.082392200); /* 2*(c2-c6) */ - tmp12 = z5 - z10 * ((FAST_FLOAT) 2.613125930); /* 2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 - tmp5; - - /* Final output stage: float->int conversion and range-limit */ - - outptr[0] = range_limit[((int) (tmp0 + tmp7)) & RANGE_MASK]; - outptr[7] = range_limit[((int) (tmp0 - tmp7)) & RANGE_MASK]; - outptr[1] = range_limit[((int) (tmp1 + tmp6)) & RANGE_MASK]; - outptr[6] = range_limit[((int) (tmp1 - tmp6)) & RANGE_MASK]; - outptr[2] = range_limit[((int) (tmp2 + tmp5)) & RANGE_MASK]; - outptr[5] = range_limit[((int) (tmp2 - tmp5)) & RANGE_MASK]; - outptr[3] = range_limit[((int) (tmp3 + tmp4)) & RANGE_MASK]; - outptr[4] = range_limit[((int) (tmp3 - tmp4)) & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#endif /* DCT_FLOAT_SUPPORTED */ diff --git a/jpeg/jidctfst.c b/jpeg/jidctfst.c deleted file mode 100755 index dba4216..0000000 --- a/jpeg/jidctfst.c +++ /dev/null @@ -1,368 +0,0 @@ -/* - * jidctfst.c - * - * Copyright (C) 1994-1998, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a fast, not so accurate integer implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on Arai, Agui, and Nakajima's algorithm for - * scaled DCT. Their original paper (Trans. IEICE E-71(11):1095) is in - * Japanese, but the algorithm is described in the Pennebaker & Mitchell - * JPEG textbook (see REFERENCES section in file README). The following code - * is based directly on figure 4-8 in P&M. - * While an 8-point DCT cannot be done in less than 11 multiplies, it is - * possible to arrange the computation so that many of the multiplies are - * simple scalings of the final outputs. These multiplies can then be - * folded into the multiplications or divisions by the JPEG quantization - * table entries. The AA&N method leaves only 5 multiplies and 29 adds - * to be done in the DCT itself. - * The primary disadvantage of this method is that with fixed-point math, - * accuracy is lost due to imprecise representation of the scaled - * quantization values. The smaller the quantization table entry, the less - * precise the scaled value, so this implementation does worse with high- - * quality-setting files than with low-quality ones. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_IFAST_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */ -#endif - - -/* Scaling decisions are generally the same as in the LL&M algorithm; - * see jidctint.c for more details. However, we choose to descale - * (right shift) multiplication products as soon as they are formed, - * rather than carrying additional fractional bits into subsequent additions. - * This compromises accuracy slightly, but it lets us save a few shifts. - * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples) - * everywhere except in the multiplications proper; this saves a good deal - * of work on 16-bit-int machines. - * - * The dequantized coefficients are not integers because the AA&N scaling - * factors have been incorporated. We represent them scaled up by PASS1_BITS, - * so that the first and second IDCT rounds have the same input scaling. - * For 8-bit JSAMPLEs, we choose IFAST_SCALE_BITS = PASS1_BITS so as to - * avoid a descaling shift; this compromises accuracy rather drastically - * for small quantization table entries, but it saves a lot of shifts. - * For 12-bit JSAMPLEs, there's no hope of using 16x16 multiplies anyway, - * so we use a much larger scaling factor to preserve accuracy. - * - * A final compromise is to represent the multiplicative constants to only - * 8 fractional bits, rather than 13. This saves some shifting work on some - * machines, and may also reduce the cost of multiplication (since there - * are fewer one-bits in the constants). - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 8 -#define PASS1_BITS 2 -#else -#define CONST_BITS 8 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 8 -#define FIX_1_082392200 ((INT32) 277) /* FIX(1.082392200) */ -#define FIX_1_414213562 ((INT32) 362) /* FIX(1.414213562) */ -#define FIX_1_847759065 ((INT32) 473) /* FIX(1.847759065) */ -#define FIX_2_613125930 ((INT32) 669) /* FIX(2.613125930) */ -#else -#define FIX_1_082392200 FIX(1.082392200) -#define FIX_1_414213562 FIX(1.414213562) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_2_613125930 FIX(2.613125930) -#endif - - -/* We can gain a little more speed, with a further compromise in accuracy, - * by omitting the addition in a descaling shift. This yields an incorrectly - * rounded result half the time... - */ - -#ifndef USE_ACCURATE_ROUNDING -#undef DESCALE -#define DESCALE(x,n) RIGHT_SHIFT(x, n) -#endif - - -/* Multiply a DCTELEM variable by an INT32 constant, and immediately - * descale to yield a DCTELEM result. - */ - -#define MULTIPLY(var,const) ((DCTELEM) DESCALE((var) * (const), CONST_BITS)) - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce a DCTELEM result. For 8-bit data a 16x16->16 - * multiplication will do. For 12-bit data, the multiplier table is - * declared INT32, so a 32-bit multiply will be used. - */ - -#if BITS_IN_JSAMPLE == 8 -#define DEQUANTIZE(coef,quantval) (((IFAST_MULT_TYPE) (coef)) * (quantval)) -#else -#define DEQUANTIZE(coef,quantval) \ - DESCALE((coef)*(quantval), IFAST_SCALE_BITS-PASS1_BITS) -#endif - - -/* Like DESCALE, but applies to a DCTELEM and produces an int. - * We assume that int right shift is unsigned if INT32 right shift is. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define ISHIFT_TEMPS DCTELEM ishift_temp; -#if BITS_IN_JSAMPLE == 8 -#define DCTELEMBITS 16 /* DCTELEM may be 16 or 32 bits */ -#else -#define DCTELEMBITS 32 /* DCTELEM must be 32 bits */ -#endif -#define IRIGHT_SHIFT(x,shft) \ - ((ishift_temp = (x)) < 0 ? \ - (ishift_temp >> (shft)) | ((~((DCTELEM) 0)) << (DCTELEMBITS-(shft))) : \ - (ishift_temp >> (shft))) -#else -#define ISHIFT_TEMPS -#define IRIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - -#ifdef USE_ACCURATE_ROUNDING -#define IDESCALE(x,n) ((int) IRIGHT_SHIFT((x) + (1 << ((n)-1)), n)) -#else -#define IDESCALE(x,n) ((int) IRIGHT_SHIFT(x, n)) -#endif - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7; - DCTELEM tmp10, tmp11, tmp12, tmp13; - DCTELEM z5, z10, z11, z12, z13; - JCOEFPTR inptr; - IFAST_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[DCTSIZE2]; /* buffers data between passes */ - SHIFT_TEMPS /* for DESCALE */ - ISHIFT_TEMPS /* for IDESCALE */ - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (IFAST_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = (int) DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = tmp0 + tmp2; /* phase 3 */ - tmp11 = tmp0 - tmp2; - - tmp13 = tmp1 + tmp3; /* phases 5-3 */ - tmp12 = MULTIPLY(tmp1 - tmp3, FIX_1_414213562) - tmp13; /* 2*c4 */ - - tmp0 = tmp10 + tmp13; /* phase 2 */ - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - tmp4 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp5 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp6 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp7 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z13 = tmp6 + tmp5; /* phase 6 */ - z10 = tmp6 - tmp5; - z11 = tmp4 + tmp7; - z12 = tmp4 - tmp7; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ - - z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ - tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ - tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 + tmp5; - - wsptr[DCTSIZE*0] = (int) (tmp0 + tmp7); - wsptr[DCTSIZE*7] = (int) (tmp0 - tmp7); - wsptr[DCTSIZE*1] = (int) (tmp1 + tmp6); - wsptr[DCTSIZE*6] = (int) (tmp1 - tmp6); - wsptr[DCTSIZE*2] = (int) (tmp2 + tmp5); - wsptr[DCTSIZE*5] = (int) (tmp2 - tmp5); - wsptr[DCTSIZE*4] = (int) (tmp3 + tmp4); - wsptr[DCTSIZE*3] = (int) (tmp3 - tmp4); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * On machines with very fast multiplication, it's possible that the - * test takes more time than it's worth. In that case this section - * may be commented out. - */ - -#ifndef NO_ZERO_ROW_TEST - if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && - wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { - /* AC terms all zero */ - JSAMPLE dcval = range_limit[IDESCALE(wsptr[0], PASS1_BITS+3) - & RANGE_MASK]; - - outptr[0] = dcval; - outptr[1] = dcval; - outptr[2] = dcval; - outptr[3] = dcval; - outptr[4] = dcval; - outptr[5] = dcval; - outptr[6] = dcval; - outptr[7] = dcval; - - wsptr += DCTSIZE; /* advance pointer to next row */ - continue; - } -#endif - - /* Even part */ - - tmp10 = ((DCTELEM) wsptr[0] + (DCTELEM) wsptr[4]); - tmp11 = ((DCTELEM) wsptr[0] - (DCTELEM) wsptr[4]); - - tmp13 = ((DCTELEM) wsptr[2] + (DCTELEM) wsptr[6]); - tmp12 = MULTIPLY((DCTELEM) wsptr[2] - (DCTELEM) wsptr[6], FIX_1_414213562) - - tmp13; - - tmp0 = tmp10 + tmp13; - tmp3 = tmp10 - tmp13; - tmp1 = tmp11 + tmp12; - tmp2 = tmp11 - tmp12; - - /* Odd part */ - - z13 = (DCTELEM) wsptr[5] + (DCTELEM) wsptr[3]; - z10 = (DCTELEM) wsptr[5] - (DCTELEM) wsptr[3]; - z11 = (DCTELEM) wsptr[1] + (DCTELEM) wsptr[7]; - z12 = (DCTELEM) wsptr[1] - (DCTELEM) wsptr[7]; - - tmp7 = z11 + z13; /* phase 5 */ - tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */ - - z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */ - tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */ - tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */ - - tmp6 = tmp12 - tmp7; /* phase 2 */ - tmp5 = tmp11 - tmp6; - tmp4 = tmp10 + tmp5; - - /* Final output stage: scale down by a factor of 8 and range-limit */ - - outptr[0] = range_limit[IDESCALE(tmp0 + tmp7, PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[IDESCALE(tmp0 - tmp7, PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[IDESCALE(tmp1 + tmp6, PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[IDESCALE(tmp1 - tmp6, PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[IDESCALE(tmp2 + tmp5, PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[IDESCALE(tmp2 - tmp5, PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[IDESCALE(tmp3 + tmp4, PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[IDESCALE(tmp3 - tmp4, PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#endif /* DCT_IFAST_SUPPORTED */ diff --git a/jpeg/jidctint.c b/jpeg/jidctint.c deleted file mode 100755 index dcdf7ce..0000000 --- a/jpeg/jidctint.c +++ /dev/null @@ -1,5137 +0,0 @@ -/* - * jidctint.c - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modification developed 2002-2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a slow-but-accurate integer implementation of the - * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine - * must also perform dequantization of the input coefficients. - * - * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT - * on each row (or vice versa, but it's more convenient to emit a row at - * a time). Direct algorithms are also available, but they are much more - * complex and seem not to be any faster when reduced to code. - * - * This implementation is based on an algorithm described in - * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT - * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, - * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. - * The primary algorithm described there uses 11 multiplies and 29 adds. - * We use their alternate method with 12 multiplies and 32 adds. - * The advantage of this method is that no data path contains more than one - * multiplication; this allows a very simple and accurate implementation in - * scaled fixed-point arithmetic, with a minimal number of shifts. - * - * We also provide IDCT routines with various output sample block sizes for - * direct resolution reduction or enlargement and for direct resolving the - * common 2x1 and 1x2 subsampling cases without additional resampling: NxN - * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 input DCT block. - * - * For N<8 we simply take the corresponding low-frequency coefficients of - * the 8x8 input DCT block and apply an NxN point IDCT on the sub-block - * to yield the downscaled outputs. - * This can be seen as direct low-pass downsampling from the DCT domain - * point of view rather than the usual spatial domain point of view, - * yielding significant computational savings and results at least - * as good as common bilinear (averaging) spatial downsampling. - * - * For N>8 we apply a partial NxN IDCT on the 8 input coefficients as - * lower frequencies and higher frequencies assumed to be zero. - * It turns out that the computational effort is similar to the 8x8 IDCT - * regarding the output size. - * Furthermore, the scaling and descaling is the same for all IDCT sizes. - * - * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases - * since there would be too many additional constants to pre-calculate. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jdct.h" /* Private declarations for DCT subsystem */ - -#ifdef DCT_ISLOW_SUPPORTED - - -/* - * This module is specialized to the case DCTSIZE = 8. - */ - -#if DCTSIZE != 8 - Sorry, this code only copes with 8x8 DCT blocks. /* deliberate syntax err */ -#endif - - -/* - * The poop on this scaling stuff is as follows: - * - * Each 1-D IDCT step produces outputs which are a factor of sqrt(N) - * larger than the true IDCT outputs. The final outputs are therefore - * a factor of N larger than desired; since N=8 this can be cured by - * a simple right shift at the end of the algorithm. The advantage of - * this arrangement is that we save two multiplications per 1-D IDCT, - * because the y0 and y4 inputs need not be divided by sqrt(N). - * - * We have to do addition and subtraction of the integer inputs, which - * is no problem, and multiplication by fractional constants, which is - * a problem to do in integer arithmetic. We multiply all the constants - * by CONST_SCALE and convert them to integer constants (thus retaining - * CONST_BITS bits of precision in the constants). After doing a - * multiplication we have to divide the product by CONST_SCALE, with proper - * rounding, to produce the correct output. This division can be done - * cheaply as a right shift of CONST_BITS bits. We postpone shifting - * as long as possible so that partial sums can be added together with - * full fractional precision. - * - * The outputs of the first pass are scaled up by PASS1_BITS bits so that - * they are represented to better-than-integral precision. These outputs - * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word - * with the recommended scaling. (To scale up 12-bit sample data further, an - * intermediate INT32 array would be needed.) - * - * To avoid overflow of the 32-bit intermediate results in pass 2, we must - * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis - * shows that the values given below are the most effective. - */ - -#if BITS_IN_JSAMPLE == 8 -#define CONST_BITS 13 -#define PASS1_BITS 2 -#else -#define CONST_BITS 13 -#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ -#endif - -/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus - * causing a lot of useless floating-point operations at run time. - * To get around this we use the following pre-calculated constants. - * If you change CONST_BITS you may want to add appropriate values. - * (With a reasonable C compiler, you can just rely on the FIX() macro...) - */ - -#if CONST_BITS == 13 -#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */ -#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */ -#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */ -#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */ -#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */ -#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */ -#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */ -#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */ -#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */ -#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */ -#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */ -#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */ -#else -#define FIX_0_298631336 FIX(0.298631336) -#define FIX_0_390180644 FIX(0.390180644) -#define FIX_0_541196100 FIX(0.541196100) -#define FIX_0_765366865 FIX(0.765366865) -#define FIX_0_899976223 FIX(0.899976223) -#define FIX_1_175875602 FIX(1.175875602) -#define FIX_1_501321110 FIX(1.501321110) -#define FIX_1_847759065 FIX(1.847759065) -#define FIX_1_961570560 FIX(1.961570560) -#define FIX_2_053119869 FIX(2.053119869) -#define FIX_2_562915447 FIX(2.562915447) -#define FIX_3_072711026 FIX(3.072711026) -#endif - - -/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. - * For 8-bit samples with the recommended scaling, all the variable - * and constant values involved are no more than 16 bits wide, so a - * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. - * For 12-bit samples, a full 32-bit multiplication will be needed. - */ - -#if BITS_IN_JSAMPLE == 8 -#define MULTIPLY(var,const) MULTIPLY16C16(var,const) -#else -#define MULTIPLY(var,const) ((var) * (const)) -#endif - - -/* Dequantize a coefficient by multiplying it by the multiplier-table - * entry; produce an int result. In this module, both inputs and result - * are 16 bits or less, so either int or short multiply will work. - */ - -#define DEQUANTIZE(coef,quantval) (((ISLOW_MULT_TYPE) (coef)) * (quantval)) - - -/* - * Perform dequantization and inverse DCT on one block of coefficients. - */ - -GLOBAL(void) -jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[DCTSIZE2]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < DCTSIZE; ctr++) { - outptr = output_buf[ctr] + output_col; - /* Rows of zeroes can be exploited in the same way as we did with columns. - * However, the column calculation has created many nonzero AC terms, so - * the simplification applies less often (typically 5% to 10% of the time). - * On machines with very fast multiplication, it's possible that the - * test takes more time than it's worth. In that case this section - * may be commented out. - */ - -#ifndef NO_ZERO_ROW_TEST - if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 && - wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) { - /* AC terms all zero */ - JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3) - & RANGE_MASK]; - - outptr[0] = dcval; - outptr[1] = dcval; - outptr[2] = dcval; - outptr[3] = dcval; - outptr[4] = dcval; - outptr[5] = dcval; - outptr[6] = dcval; - outptr[7] = dcval; - - wsptr += DCTSIZE; /* advance pointer to next row */ - continue; - } -#endif - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - -#ifdef IDCT_SCALING_SUPPORTED - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 7x7 output block. - * - * Optimized algorithm with 12 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/14). - */ - -GLOBAL(void) -jpeg_idct_7x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[7*7]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp13 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp13 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp13 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp0 = z1 + z3; - z2 -= tmp0; - tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ - tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - - tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp0 += z2; - tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - wsptr[7*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[7*6] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[7*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[7*5] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[7*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[7*4] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[7*3] = (int) RIGHT_SHIFT(tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 7 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp13 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp13 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp10 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp11 = tmp10 + tmp12 + tmp13 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp0 = z1 + z3; - z2 -= tmp0; - tmp0 = MULTIPLY(tmp0, FIX(1.274162392)) + tmp13; /* c2 */ - tmp10 += tmp0 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp12 += tmp0 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp13 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - - tmp1 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp2 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp0 = tmp1 - tmp2; - tmp1 += tmp2; - tmp2 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp1 += tmp2; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp0 += z2; - tmp2 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 7; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 6x6 output block. - * - * Optimized algorithm with 3 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/12). - */ - -GLOBAL(void) -jpeg_idct_6x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); - tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) (tmp11 + tmp1); - wsptr[6*4] = (int) (tmp11 - tmp1); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[6*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[4]; - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = tmp0 - tmp10 - tmp10; - tmp10 = (INT32) wsptr[2]; - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 5x5 output block. - * - * Optimized algorithm with 5 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/10). - */ - -GLOBAL(void) -jpeg_idct_5x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[5*5]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp12 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - wsptr[5*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[5*4] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[5*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[5*3] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[5*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 5 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp12 <<= CONST_BITS; - tmp0 = (INT32) wsptr[2]; - tmp1 = (INT32) wsptr[4]; - z1 = MULTIPLY(tmp0 + tmp1, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp0 - tmp1, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp0 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp1 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 5; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 4x4 output block. - * - * Optimized algorithm with 3 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - -GLOBAL(void) -jpeg_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[4*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << PASS1_BITS; - tmp12 = (tmp0 - tmp2) << PASS1_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Final output stage */ - - wsptr[4*0] = (int) (tmp10 + tmp0); - wsptr[4*3] = (int) (tmp10 - tmp0); - wsptr[4*1] = (int) (tmp12 + tmp2); - wsptr[4*2] = (int) (tmp12 - tmp2); - } - - /* Pass 2: process 4 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp2 = (INT32) wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 3x3 output block. - * - * Optimized algorithm with 2 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/6). - */ - -GLOBAL(void) -jpeg_idct_3x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[3*3]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 3 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[2]; - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = (INT32) wsptr[1]; - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 3; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 2x2 output block. - * - * Multiplication-less algorithm. - */ - -GLOBAL(void) -jpeg_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; - ISLOW_MULT_TYPE * quantptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Pass 1: process columns from input. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - - /* Column 0 */ - tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); - /* Add fudge factor here for final descale. */ - tmp4 += ONE << 2; - - tmp0 = tmp4 + tmp5; - tmp2 = tmp4 - tmp5; - - /* Column 1 */ - tmp4 = DEQUANTIZE(coef_block[DCTSIZE*0+1], quantptr[DCTSIZE*0+1]); - tmp5 = DEQUANTIZE(coef_block[DCTSIZE*1+1], quantptr[DCTSIZE*1+1]); - - tmp1 = tmp4 + tmp5; - tmp3 = tmp4 - tmp5; - - /* Pass 2: process 2 rows, store into output array. */ - - /* Row 0 */ - outptr = output_buf[0] + output_col; - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp0 + tmp1, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp0 - tmp1, 3) & RANGE_MASK]; - - /* Row 1 */ - outptr = output_buf[1] + output_col; - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp2 + tmp3, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2 - tmp3, 3) & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 1x1 output block. - * - * We hardly need an inverse DCT routine for this: just take the - * average pixel value, which is one-eighth of the DC coefficient. - */ - -GLOBAL(void) -jpeg_idct_1x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - int dcval; - ISLOW_MULT_TYPE * quantptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* 1x1 is trivial: just take the DC coefficient divided by 8. */ - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - dcval = DEQUANTIZE(coef_block[0], quantptr[0]); - dcval = (int) DESCALE((INT32) dcval, 3); - - output_buf[0][output_col] = range_limit[dcval & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 9x9 output block. - * - * Optimized algorithm with 10 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/18). - */ - -GLOBAL(void) -jpeg_idct_9x9 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*9]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ - tmp1 = tmp0 + tmp3; - tmp2 = tmp0 - tmp3 - tmp3; - - tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ - tmp11 = tmp2 + tmp0; - tmp14 = tmp2 - tmp0 - tmp0; - - tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ - tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ - tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ - - tmp10 = tmp1 + tmp0 - tmp3; - tmp12 = tmp1 - tmp0 + tmp2; - tmp13 = tmp1 - tmp2 + tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ - - tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ - tmp0 = tmp2 + tmp3 - z2; - tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ - tmp2 += z2 - tmp1; - tmp3 += z2 + tmp1; - tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp11 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp13 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp13 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 9 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 9; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp3 = MULTIPLY(z3, FIX(0.707106781)); /* c6 */ - tmp1 = tmp0 + tmp3; - tmp2 = tmp0 - tmp3 - tmp3; - - tmp0 = MULTIPLY(z1 - z2, FIX(0.707106781)); /* c6 */ - tmp11 = tmp2 + tmp0; - tmp14 = tmp2 - tmp0 - tmp0; - - tmp0 = MULTIPLY(z1 + z2, FIX(1.328926049)); /* c2 */ - tmp2 = MULTIPLY(z1, FIX(1.083350441)); /* c4 */ - tmp3 = MULTIPLY(z2, FIX(0.245575608)); /* c8 */ - - tmp10 = tmp1 + tmp0 - tmp3; - tmp12 = tmp1 - tmp0 + tmp2; - tmp13 = tmp1 - tmp2 + tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - z2 = MULTIPLY(z2, - FIX(1.224744871)); /* -c3 */ - - tmp2 = MULTIPLY(z1 + z3, FIX(0.909038955)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(0.483689525)); /* c7 */ - tmp0 = tmp2 + tmp3 - z2; - tmp1 = MULTIPLY(z3 - z4, FIX(1.392728481)); /* c1 */ - tmp2 += z2 - tmp1; - tmp3 += z2 + tmp1; - tmp1 = MULTIPLY(z1 - z3 - z4, FIX(1.224744871)); /* c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 10x10 output block. - * - * Optimized algorithm with 12 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/20). - */ - -GLOBAL(void) -jpeg_idct_10x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4, z5; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*10]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - z5 = z3 << CONST_BITS; - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z5 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) (tmp22 + tmp12); - wsptr[8*7] = (int) (tmp22 - tmp12); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 10 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 10; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[7]; - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z3 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 11x11 output block. - * - * Optimized algorithm with 24 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/22). - */ - -GLOBAL(void) -jpeg_idct_11x11 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*11]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp10 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ - tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ - z4 = z1 + z3; - tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ - z4 -= z2; - tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ - tmp21 = tmp20 + tmp23 + tmp25 - - MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ - tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ - tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ - tmp24 += tmp25; - tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ - tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ - MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ - tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z2; - tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ - tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ - tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ - z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ - tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ - tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ - z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ - tmp11 += z1; - tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ - tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ - MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ - MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 11 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 11; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp10 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp20 = MULTIPLY(z2 - z3, FIX(2.546640132)); /* c2+c4 */ - tmp23 = MULTIPLY(z2 - z1, FIX(0.430815045)); /* c2-c6 */ - z4 = z1 + z3; - tmp24 = MULTIPLY(z4, - FIX(1.155664402)); /* -(c2-c10) */ - z4 -= z2; - tmp25 = tmp10 + MULTIPLY(z4, FIX(1.356927976)); /* c2 */ - tmp21 = tmp20 + tmp23 + tmp25 - - MULTIPLY(z2, FIX(1.821790775)); /* c2+c4+c10-c6 */ - tmp20 += tmp25 + MULTIPLY(z3, FIX(2.115825087)); /* c4+c6 */ - tmp23 += tmp25 - MULTIPLY(z1, FIX(1.513598477)); /* c6+c8 */ - tmp24 += tmp25; - tmp22 = tmp24 - MULTIPLY(z3, FIX(0.788749120)); /* c8+c10 */ - tmp24 += MULTIPLY(z2, FIX(1.944413522)) - /* c2+c8 */ - MULTIPLY(z1, FIX(1.390975730)); /* c4+c10 */ - tmp25 = tmp10 - MULTIPLY(z4, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z2; - tmp14 = MULTIPLY(tmp11 + z3 + z4, FIX(0.398430003)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.887983902)); /* c3-c9 */ - tmp12 = MULTIPLY(z1 + z3, FIX(0.670361295)); /* c5-c9 */ - tmp13 = tmp14 + MULTIPLY(z1 + z4, FIX(0.366151574)); /* c7-c9 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(0.923107866)); /* c7+c5+c3-c1-2*c9 */ - z1 = tmp14 - MULTIPLY(z2 + z3, FIX(1.163011579)); /* c7+c9 */ - tmp11 += z1 + MULTIPLY(z2, FIX(2.073276588)); /* c1+c7+3*c9-c3 */ - tmp12 += z1 - MULTIPLY(z3, FIX(1.192193623)); /* c3+c5-c7-c9 */ - z1 = MULTIPLY(z2 + z4, - FIX(1.798248910)); /* -(c1+c9) */ - tmp11 += z1; - tmp13 += z1 + MULTIPLY(z4, FIX(2.102458632)); /* c1+c5+c9-c7 */ - tmp14 += MULTIPLY(z2, - FIX(1.467221301)) + /* -(c5+c9) */ - MULTIPLY(z3, FIX(1.001388905)) - /* c1-c9 */ - MULTIPLY(z4, FIX(1.684843907)); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 12x12 output block. - * - * Optimized algorithm with 15 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/24). - */ - -GLOBAL(void) -jpeg_idct_12x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*12]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 12 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 12; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - - z4 = (INT32) wsptr[4]; - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = (INT32) wsptr[2]; - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = (INT32) wsptr[6]; - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 13x13 output block. - * - * Optimized algorithm with 29 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/26). - */ - -GLOBAL(void) -jpeg_idct_13x13 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*13]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ - - tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ - tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ - - tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ - tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ - - tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ - tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ - - tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ - tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ - tmp15 = z1 + z4; - tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ - tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ - tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ - tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ - tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ - tmp11 += tmp14; - tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ - tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ - tmp12 += tmp14; - tmp13 += tmp14; - tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ - tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ - MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ - z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ - tmp14 += z1; - tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ - MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 13 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 13; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[4]; - z4 = (INT32) wsptr[6]; - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - tmp12 = MULTIPLY(tmp10, FIX(1.155388986)); /* (c4+c6)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.096834934)) + z1; /* (c4-c6)/2 */ - - tmp20 = MULTIPLY(z2, FIX(1.373119086)) + tmp12 + tmp13; /* c2 */ - tmp22 = MULTIPLY(z2, FIX(0.501487041)) - tmp12 + tmp13; /* c10 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.316450131)); /* (c8-c12)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.486914739)) + z1; /* (c8+c12)/2 */ - - tmp21 = MULTIPLY(z2, FIX(1.058554052)) - tmp12 + tmp13; /* c6 */ - tmp25 = MULTIPLY(z2, - FIX(1.252223920)) + tmp12 + tmp13; /* c4 */ - - tmp12 = MULTIPLY(tmp10, FIX(0.435816023)); /* (c2-c10)/2 */ - tmp13 = MULTIPLY(tmp11, FIX(0.937303064)) - z1; /* (c2+c10)/2 */ - - tmp23 = MULTIPLY(z2, - FIX(0.170464608)) - tmp12 - tmp13; /* c12 */ - tmp24 = MULTIPLY(z2, - FIX(0.803364869)) + tmp12 - tmp13; /* c8 */ - - tmp26 = MULTIPLY(tmp11 - z2, FIX(1.414213562)) + z1; /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z1 + z2, FIX(1.322312651)); /* c3 */ - tmp12 = MULTIPLY(z1 + z3, FIX(1.163874945)); /* c5 */ - tmp15 = z1 + z4; - tmp13 = MULTIPLY(tmp15, FIX(0.937797057)); /* c7 */ - tmp10 = tmp11 + tmp12 + tmp13 - - MULTIPLY(z1, FIX(2.020082300)); /* c7+c5+c3-c1 */ - tmp14 = MULTIPLY(z2 + z3, - FIX(0.338443458)); /* -c11 */ - tmp11 += tmp14 + MULTIPLY(z2, FIX(0.837223564)); /* c5+c9+c11-c3 */ - tmp12 += tmp14 - MULTIPLY(z3, FIX(1.572116027)); /* c1+c5-c9-c11 */ - tmp14 = MULTIPLY(z2 + z4, - FIX(1.163874945)); /* -c5 */ - tmp11 += tmp14; - tmp13 += tmp14 + MULTIPLY(z4, FIX(2.205608352)); /* c3+c5+c9-c7 */ - tmp14 = MULTIPLY(z3 + z4, - FIX(0.657217813)); /* -c9 */ - tmp12 += tmp14; - tmp13 += tmp14; - tmp15 = MULTIPLY(tmp15, FIX(0.338443458)); /* c11 */ - tmp14 = tmp15 + MULTIPLY(z1, FIX(0.318774355)) - /* c9-c11 */ - MULTIPLY(z2, FIX(0.466105296)); /* c1-c7 */ - z1 = MULTIPLY(z3 - z2, FIX(0.937797057)); /* c7 */ - tmp14 += z1; - tmp15 += z1 + MULTIPLY(z3, FIX(0.384515595)) - /* c3-c7 */ - MULTIPLY(z4, FIX(1.742345811)); /* c1+c11 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 14x14 output block. - * - * Optimized algorithm with 20 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/28). - */ - -GLOBAL(void) -jpeg_idct_14x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*14]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp13 = z4 << CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ - tmp16 += tmp15; - z1 += z4; - z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ - tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = (z1 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) (tmp23 + tmp13); - wsptr[8*10] = (int) (tmp23 - tmp13); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 14 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 14; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - z4 <<= CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ - tmp16 += tmp15; - tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ - tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = ((z1 - z3) << CONST_BITS) + z4; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 15x15 output block. - * - * Optimized algorithm with 22 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/30). - */ - -GLOBAL(void) -jpeg_idct_15x15 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*15]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ - tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ - - tmp12 = z1 - tmp10; - tmp13 = z1 + tmp11; - z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ - - z4 = z2 - z3; - z3 += z2; - tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ - z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ - - tmp20 = tmp13 + tmp10 + tmp11; - tmp23 = tmp12 - tmp10 + tmp11 + z2; - - tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ - - tmp25 = tmp13 - tmp10 - tmp11; - tmp26 = tmp12 + tmp10 - tmp11 - z2; - - tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ - - tmp21 = tmp12 + tmp10 + tmp11; - tmp24 = tmp13 - tmp10 + tmp11; - tmp11 += tmp11; - tmp22 = z1 + tmp11; /* c10 = c6-c12 */ - tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z4 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp13 = z2 - z4; - tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ - tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ - tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ - - tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ - tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ - z2 = z1 - z4; - tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ - - tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ - tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ - tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ - z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ - tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ - tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 15 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 15; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[4]; - z4 = (INT32) wsptr[6]; - - tmp10 = MULTIPLY(z4, FIX(0.437016024)); /* c12 */ - tmp11 = MULTIPLY(z4, FIX(1.144122806)); /* c6 */ - - tmp12 = z1 - tmp10; - tmp13 = z1 + tmp11; - z1 -= (tmp11 - tmp10) << 1; /* c0 = (c6-c12)*2 */ - - z4 = z2 - z3; - z3 += z2; - tmp10 = MULTIPLY(z3, FIX(1.337628990)); /* (c2+c4)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.045680613)); /* (c2-c4)/2 */ - z2 = MULTIPLY(z2, FIX(1.439773946)); /* c4+c14 */ - - tmp20 = tmp13 + tmp10 + tmp11; - tmp23 = tmp12 - tmp10 + tmp11 + z2; - - tmp10 = MULTIPLY(z3, FIX(0.547059574)); /* (c8+c14)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.399234004)); /* (c8-c14)/2 */ - - tmp25 = tmp13 - tmp10 - tmp11; - tmp26 = tmp12 + tmp10 - tmp11 - z2; - - tmp10 = MULTIPLY(z3, FIX(0.790569415)); /* (c6+c12)/2 */ - tmp11 = MULTIPLY(z4, FIX(0.353553391)); /* (c6-c12)/2 */ - - tmp21 = tmp12 + tmp10 + tmp11; - tmp24 = tmp13 - tmp10 + tmp11; - tmp11 += tmp11; - tmp22 = z1 + tmp11; /* c10 = c6-c12 */ - tmp27 = z1 - tmp11 - tmp11; /* c0 = (c6-c12)*2 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z4 = (INT32) wsptr[5]; - z3 = MULTIPLY(z4, FIX(1.224744871)); /* c5 */ - z4 = (INT32) wsptr[7]; - - tmp13 = z2 - z4; - tmp15 = MULTIPLY(z1 + tmp13, FIX(0.831253876)); /* c9 */ - tmp11 = tmp15 + MULTIPLY(z1, FIX(0.513743148)); /* c3-c9 */ - tmp14 = tmp15 - MULTIPLY(tmp13, FIX(2.176250899)); /* c3+c9 */ - - tmp13 = MULTIPLY(z2, - FIX(0.831253876)); /* -c9 */ - tmp15 = MULTIPLY(z2, - FIX(1.344997024)); /* -c3 */ - z2 = z1 - z4; - tmp12 = z3 + MULTIPLY(z2, FIX(1.406466353)); /* c1 */ - - tmp10 = tmp12 + MULTIPLY(z4, FIX(2.457431844)) - tmp15; /* c1+c7 */ - tmp16 = tmp12 - MULTIPLY(z1, FIX(1.112434820)) + tmp13; /* c1-c13 */ - tmp12 = MULTIPLY(z2, FIX(1.224744871)) - z3; /* c5 */ - z2 = MULTIPLY(z1 + z4, FIX(0.575212477)); /* c11 */ - tmp13 += z2 + MULTIPLY(z1, FIX(0.475753014)) - z3; /* c7-c11 */ - tmp15 += z2 - MULTIPLY(z4, FIX(0.869244010)) + z3; /* c11+c13 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 16x16 output block. - * - * Optimized algorithm with 28 multiplications in the 1-D kernel. - * cK represents sqrt(2) * cos(K*pi/32). - */ - -GLOBAL(void) -jpeg_idct_16x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*16]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += 1 << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 16 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 16; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[4]; - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 16x8 output block. - * - * 8-point IDCT in pass 1 (columns), 16-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_16x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*8]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = DCTSIZE; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[DCTSIZE*0] = dcval; - wsptr[DCTSIZE*1] = dcval; - wsptr[DCTSIZE*2] = dcval; - wsptr[DCTSIZE*3] = dcval; - wsptr[DCTSIZE*4] = dcval; - wsptr[DCTSIZE*5] = dcval; - wsptr[DCTSIZE*6] = dcval; - wsptr[DCTSIZE*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[DCTSIZE*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[DCTSIZE*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process 8 rows from work array, store into output array. - * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - - z1 = (INT32) wsptr[4]; - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[15] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[14] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp27 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp27 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 14x7 output block. - * - * 7-point IDCT in pass 1 (columns), 14-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_14x7 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*7]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp23 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp23 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp23 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp10 = z1 + z3; - z2 -= tmp10; - tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ - tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - - tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp10 = tmp11 - tmp12; - tmp11 += tmp12; - tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp11 += tmp12; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp10 += z2; - tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 7 rows from work array, store into output array. - * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). - */ - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z1 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z1 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = z1 - ((z2 + z3 - z4) << 1); /* c0 = (c4+c12-c8)*2 */ - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[6]; - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - z4 <<= CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + z4 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - z4; /* c11 */ - tmp16 += tmp15; - tmp13 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - z4; /* -c13 */ - tmp11 += tmp13 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += tmp13 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - tmp13 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += tmp13 + z4 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += tmp13 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = ((z1 - z3) << CONST_BITS) + z4; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[13] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[12] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp26 + tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp26 - tmp16, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 12x6 output block. - * - * 6-point IDCT in pass 1 (columns), 12-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_12x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp10 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp10 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp12 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ - tmp11 = tmp10 + tmp20; - tmp21 = RIGHT_SHIFT(tmp10 - tmp20 - tmp20, CONST_BITS-PASS1_BITS); - tmp20 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ - tmp20 = tmp11 + tmp10; - tmp22 = tmp11 - tmp10; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); - tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); - tmp11 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) (tmp21 + tmp11); - wsptr[8*4] = (int) (tmp21 - tmp11); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. - * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). - */ - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - - z4 = (INT32) wsptr[4]; - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = (INT32) wsptr[2]; - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = (INT32) wsptr[6]; - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z4 = (INT32) wsptr[7]; - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[11] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[10] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp25 + tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp25 - tmp15, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 10x5 output block. - * - * 5-point IDCT in pass 1 (columns), 10-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_10x5 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*5]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp12 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp12 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp13 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp14 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp10 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp10 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp11 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp11 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp12, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 5 rows from work array, store into output array. - * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). - */ - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - z3 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[4]; - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = z3 - ((z1 - z2) << 1); /* c0 = (c4-c8)*2 */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - z3 <<= CONST_BITS; - z4 = (INT32) wsptr[7]; - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z3 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z3 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = ((z1 - tmp13) << CONST_BITS) - z3; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[9] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[8] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp23 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp24 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp24 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 8; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 8x4 output block. - * - * 4-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_8x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << PASS1_BITS; - tmp12 = (tmp0 - tmp2) << PASS1_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp0 = RIGHT_SHIFT(z1 + MULTIPLY(z2, FIX_0_765366865), /* c2-c6 */ - CONST_BITS-PASS1_BITS); - tmp2 = RIGHT_SHIFT(z1 - MULTIPLY(z3, FIX_1_847759065), /* c2+c6 */ - CONST_BITS-PASS1_BITS); - - /* Final output stage */ - - wsptr[8*0] = (int) (tmp10 + tmp0); - wsptr[8*3] = (int) (tmp10 - tmp0); - wsptr[8*1] = (int) (tmp12 + tmp2); - wsptr[8*2] = (int) (tmp12 - tmp2); - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 6x3 output block. - * - * 3-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_6x3 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*3]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) RIGHT_SHIFT(tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 3 rows from work array, store into output array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[4]; - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = tmp0 - tmp10 - tmp10; - tmp10 = (INT32) wsptr[2]; - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 4x2 output block. - * - * 2-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_4x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - INT32 * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - INT32 workspace[4*2]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp10 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - - /* Odd part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - /* Final output stage */ - - wsptr[4*0] = tmp10 + tmp0; - wsptr[4*1] = tmp10 - tmp0; - } - - /* Pass 2: process 2 rows from work array, store into output array. - * 4-point IDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - wsptr = workspace; - for (ctr = 0; ctr < 2; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = wsptr[0] + (ONE << 2); - tmp2 = wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = wsptr[1]; - z3 = wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 2x1 output block. - * - * 1-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_2x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp10; - ISLOW_MULT_TYPE * quantptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Pass 1: empty. */ - - /* Pass 2: process 1 row from input, store into output array. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - outptr = output_buf[0] + output_col; - - /* Even part */ - - tmp10 = DEQUANTIZE(coef_block[0], quantptr[0]); - /* Add fudge factor here for final descale. */ - tmp10 += ONE << 2; - - /* Odd part */ - - tmp0 = DEQUANTIZE(coef_block[1], quantptr[1]); - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) & RANGE_MASK]; -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 8x16 output block. - * - * 16-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_8x16 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[8*16]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - - z1 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp1 = MULTIPLY(z1, FIX(1.306562965)); /* c4[16] = c2[8] */ - tmp2 = MULTIPLY(z1, FIX_0_541196100); /* c12[16] = c6[8] */ - - tmp10 = tmp0 + tmp1; - tmp11 = tmp0 - tmp1; - tmp12 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z3 = z1 - z2; - z4 = MULTIPLY(z3, FIX(0.275899379)); /* c14[16] = c7[8] */ - z3 = MULTIPLY(z3, FIX(1.387039845)); /* c2[16] = c1[8] */ - - tmp0 = z3 + MULTIPLY(z2, FIX_2_562915447); /* (c6+c2)[16] = (c3+c1)[8] */ - tmp1 = z4 + MULTIPLY(z1, FIX_0_899976223); /* (c6-c14)[16] = (c3-c7)[8] */ - tmp2 = z3 - MULTIPLY(z1, FIX(0.601344887)); /* (c2-c10)[16] = (c1-c5)[8] */ - tmp3 = z4 - MULTIPLY(z2, FIX(0.509795579)); /* (c10-c14)[16] = (c5-c7)[8] */ - - tmp20 = tmp10 + tmp0; - tmp27 = tmp10 - tmp0; - tmp21 = tmp12 + tmp1; - tmp26 = tmp12 - tmp1; - tmp22 = tmp13 + tmp2; - tmp25 = tmp13 - tmp2; - tmp23 = tmp11 + tmp3; - tmp24 = tmp11 - tmp3; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z1 + z3; - - tmp1 = MULTIPLY(z1 + z2, FIX(1.353318001)); /* c3 */ - tmp2 = MULTIPLY(tmp11, FIX(1.247225013)); /* c5 */ - tmp3 = MULTIPLY(z1 + z4, FIX(1.093201867)); /* c7 */ - tmp10 = MULTIPLY(z1 - z4, FIX(0.897167586)); /* c9 */ - tmp11 = MULTIPLY(tmp11, FIX(0.666655658)); /* c11 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.410524528)); /* c13 */ - tmp0 = tmp1 + tmp2 + tmp3 - - MULTIPLY(z1, FIX(2.286341144)); /* c7+c5+c3-c1 */ - tmp13 = tmp10 + tmp11 + tmp12 - - MULTIPLY(z1, FIX(1.835730603)); /* c9+c11+c13-c15 */ - z1 = MULTIPLY(z2 + z3, FIX(0.138617169)); /* c15 */ - tmp1 += z1 + MULTIPLY(z2, FIX(0.071888074)); /* c9+c11-c3-c15 */ - tmp2 += z1 - MULTIPLY(z3, FIX(1.125726048)); /* c5+c7+c15-c3 */ - z1 = MULTIPLY(z3 - z2, FIX(1.407403738)); /* c1 */ - tmp11 += z1 - MULTIPLY(z3, FIX(0.766367282)); /* c1+c11-c9-c13 */ - tmp12 += z1 + MULTIPLY(z2, FIX(1.971951411)); /* c1+c5+c13-c7 */ - z2 += z4; - z1 = MULTIPLY(z2, - FIX(0.666655658)); /* -c11 */ - tmp1 += z1; - tmp3 += z1 + MULTIPLY(z4, FIX(1.065388962)); /* c3+c11+c15-c7 */ - z2 = MULTIPLY(z2, - FIX(1.247225013)); /* -c5 */ - tmp10 += z2 + MULTIPLY(z4, FIX(3.141271809)); /* c1+c5+c9-c13 */ - tmp12 += z2; - z2 = MULTIPLY(z3 + z4, - FIX(1.353318001)); /* -c3 */ - tmp2 += z2; - tmp3 += z2; - z2 = MULTIPLY(z4 - z3, FIX(0.410524528)); /* c13 */ - tmp10 += z2; - tmp11 += z2; - - /* Final output stage */ - - wsptr[8*0] = (int) RIGHT_SHIFT(tmp20 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*15] = (int) RIGHT_SHIFT(tmp20 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[8*1] = (int) RIGHT_SHIFT(tmp21 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*14] = (int) RIGHT_SHIFT(tmp21 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[8*2] = (int) RIGHT_SHIFT(tmp22 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*13] = (int) RIGHT_SHIFT(tmp22 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[8*3] = (int) RIGHT_SHIFT(tmp23 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*12] = (int) RIGHT_SHIFT(tmp23 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[8*4] = (int) RIGHT_SHIFT(tmp24 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*11] = (int) RIGHT_SHIFT(tmp24 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[8*5] = (int) RIGHT_SHIFT(tmp25 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*10] = (int) RIGHT_SHIFT(tmp25 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[8*6] = (int) RIGHT_SHIFT(tmp26 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*9] = (int) RIGHT_SHIFT(tmp26 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[8*7] = (int) RIGHT_SHIFT(tmp27 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[8*8] = (int) RIGHT_SHIFT(tmp27 - tmp13, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process rows from work array, store into output array. */ - /* Note that we must descale the results by a factor of 8 == 2**3, */ - /* and also undo the PASS1_BITS scaling. */ - - wsptr = workspace; - for (ctr = 0; ctr < 16; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = (INT32) wsptr[2]; - z3 = (INT32) wsptr[6]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - /* Add fudge factor here for final descale. */ - z2 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - z3 = (INT32) wsptr[4]; - - tmp0 = (z2 + z3) << CONST_BITS; - tmp1 = (z2 - z3) << CONST_BITS; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = (INT32) wsptr[7]; - tmp1 = (INT32) wsptr[5]; - tmp2 = (INT32) wsptr[3]; - tmp3 = (INT32) wsptr[1]; - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[7] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp3, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp1, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp13 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp13 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += DCTSIZE; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 7x14 output block. - * - * 14-point IDCT in pass 1 (columns), 7-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_7x14 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[7*14]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 7; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z1 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z1 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 = MULTIPLY(z4, FIX(1.274162392)); /* c4 */ - z3 = MULTIPLY(z4, FIX(0.314692123)); /* c12 */ - z4 = MULTIPLY(z4, FIX(0.881747734)); /* c8 */ - - tmp10 = z1 + z2; - tmp11 = z1 + z3; - tmp12 = z1 - z4; - - tmp23 = RIGHT_SHIFT(z1 - ((z2 + z3 - z4) << 1), /* c0 = (c4+c12-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z3 = MULTIPLY(z1 + z2, FIX(1.105676686)); /* c6 */ - - tmp13 = z3 + MULTIPLY(z1, FIX(0.273079590)); /* c2-c6 */ - tmp14 = z3 - MULTIPLY(z2, FIX(1.719280954)); /* c6+c10 */ - tmp15 = MULTIPLY(z1, FIX(0.613604268)) - /* c10 */ - MULTIPLY(z2, FIX(1.378756276)); /* c2 */ - - tmp20 = tmp10 + tmp13; - tmp26 = tmp10 - tmp13; - tmp21 = tmp11 + tmp14; - tmp25 = tmp11 - tmp14; - tmp22 = tmp12 + tmp15; - tmp24 = tmp12 - tmp15; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp13 = z4 << CONST_BITS; - - tmp14 = z1 + z3; - tmp11 = MULTIPLY(z1 + z2, FIX(1.334852607)); /* c3 */ - tmp12 = MULTIPLY(tmp14, FIX(1.197448846)); /* c5 */ - tmp10 = tmp11 + tmp12 + tmp13 - MULTIPLY(z1, FIX(1.126980169)); /* c3+c5-c1 */ - tmp14 = MULTIPLY(tmp14, FIX(0.752406978)); /* c9 */ - tmp16 = tmp14 - MULTIPLY(z1, FIX(1.061150426)); /* c9+c11-c13 */ - z1 -= z2; - tmp15 = MULTIPLY(z1, FIX(0.467085129)) - tmp13; /* c11 */ - tmp16 += tmp15; - z1 += z4; - z4 = MULTIPLY(z2 + z3, - FIX(0.158341681)) - tmp13; /* -c13 */ - tmp11 += z4 - MULTIPLY(z2, FIX(0.424103948)); /* c3-c9-c13 */ - tmp12 += z4 - MULTIPLY(z3, FIX(2.373959773)); /* c3+c5-c13 */ - z4 = MULTIPLY(z3 - z2, FIX(1.405321284)); /* c1 */ - tmp14 += z4 + tmp13 - MULTIPLY(z3, FIX(1.6906431334)); /* c1+c9-c11 */ - tmp15 += z4 + MULTIPLY(z2, FIX(0.674957567)); /* c1+c11-c5 */ - - tmp13 = (z1 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[7*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[7*13] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[7*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[7*12] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[7*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[7*11] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[7*3] = (int) (tmp23 + tmp13); - wsptr[7*10] = (int) (tmp23 - tmp13); - wsptr[7*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[7*9] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[7*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[7*8] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - wsptr[7*6] = (int) RIGHT_SHIFT(tmp26 + tmp16, CONST_BITS-PASS1_BITS); - wsptr[7*7] = (int) RIGHT_SHIFT(tmp26 - tmp16, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 14 rows from work array, store into output array. - * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). - */ - wsptr = workspace; - for (ctr = 0; ctr < 14; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp23 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp23 <<= CONST_BITS; - - z1 = (INT32) wsptr[2]; - z2 = (INT32) wsptr[4]; - z3 = (INT32) wsptr[6]; - - tmp20 = MULTIPLY(z2 - z3, FIX(0.881747734)); /* c4 */ - tmp22 = MULTIPLY(z1 - z2, FIX(0.314692123)); /* c6 */ - tmp21 = tmp20 + tmp22 + tmp23 - MULTIPLY(z2, FIX(1.841218003)); /* c2+c4-c6 */ - tmp10 = z1 + z3; - z2 -= tmp10; - tmp10 = MULTIPLY(tmp10, FIX(1.274162392)) + tmp23; /* c2 */ - tmp20 += tmp10 - MULTIPLY(z3, FIX(0.077722536)); /* c2-c4-c6 */ - tmp22 += tmp10 - MULTIPLY(z1, FIX(2.470602249)); /* c2+c4+c6 */ - tmp23 += MULTIPLY(z2, FIX(1.414213562)); /* c0 */ - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - - tmp11 = MULTIPLY(z1 + z2, FIX(0.935414347)); /* (c3+c1-c5)/2 */ - tmp12 = MULTIPLY(z1 - z2, FIX(0.170262339)); /* (c3+c5-c1)/2 */ - tmp10 = tmp11 - tmp12; - tmp11 += tmp12; - tmp12 = MULTIPLY(z2 + z3, - FIX(1.378756276)); /* -c1 */ - tmp11 += tmp12; - z2 = MULTIPLY(z1 + z3, FIX(0.613604268)); /* c5 */ - tmp10 += z2; - tmp12 += z2 + MULTIPLY(z3, FIX(1.870828693)); /* c3+c1-c5 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[6] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp23, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 7; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 6x12 output block. - * - * 12-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_6x12 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; - INT32 z1, z2, z3, z4; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[6*12]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z4 = MULTIPLY(z4, FIX(1.224744871)); /* c4 */ - - tmp10 = z3 + z4; - tmp11 = z3 - z4; - - z1 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z4 = MULTIPLY(z1, FIX(1.366025404)); /* c2 */ - z1 <<= CONST_BITS; - z2 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - z2 <<= CONST_BITS; - - tmp12 = z1 - z2; - - tmp21 = z3 + tmp12; - tmp24 = z3 - tmp12; - - tmp12 = z4 + z2; - - tmp20 = tmp10 + tmp12; - tmp25 = tmp10 - tmp12; - - tmp12 = z4 - z1 - z2; - - tmp22 = tmp11 + tmp12; - tmp23 = tmp11 - tmp12; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = MULTIPLY(z2, FIX(1.306562965)); /* c3 */ - tmp14 = MULTIPLY(z2, - FIX_0_541196100); /* -c9 */ - - tmp10 = z1 + z3; - tmp15 = MULTIPLY(tmp10 + z4, FIX(0.860918669)); /* c7 */ - tmp12 = tmp15 + MULTIPLY(tmp10, FIX(0.261052384)); /* c5-c7 */ - tmp10 = tmp12 + tmp11 + MULTIPLY(z1, FIX(0.280143716)); /* c1-c5 */ - tmp13 = MULTIPLY(z3 + z4, - FIX(1.045510580)); /* -(c7+c11) */ - tmp12 += tmp13 + tmp14 - MULTIPLY(z3, FIX(1.478575242)); /* c1+c5-c7-c11 */ - tmp13 += tmp15 - tmp11 + MULTIPLY(z4, FIX(1.586706681)); /* c1+c11 */ - tmp15 += tmp14 - MULTIPLY(z1, FIX(0.676326758)) - /* c7-c11 */ - MULTIPLY(z4, FIX(1.982889723)); /* c5+c7 */ - - z1 -= z4; - z2 -= z3; - z3 = MULTIPLY(z1 + z2, FIX_0_541196100); /* c9 */ - tmp11 = z3 + MULTIPLY(z1, FIX_0_765366865); /* c3-c9 */ - tmp14 = z3 - MULTIPLY(z2, FIX_1_847759065); /* c3+c9 */ - - /* Final output stage */ - - wsptr[6*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[6*11] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[6*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[6*10] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[6*2] = (int) RIGHT_SHIFT(tmp22 + tmp12, CONST_BITS-PASS1_BITS); - wsptr[6*9] = (int) RIGHT_SHIFT(tmp22 - tmp12, CONST_BITS-PASS1_BITS); - wsptr[6*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[6*8] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[6*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[6*7] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - wsptr[6*5] = (int) RIGHT_SHIFT(tmp25 + tmp15, CONST_BITS-PASS1_BITS); - wsptr[6*6] = (int) RIGHT_SHIFT(tmp25 - tmp15, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 12 rows from work array, store into output array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - wsptr = workspace; - for (ctr = 0; ctr < 12; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp10 <<= CONST_BITS; - tmp12 = (INT32) wsptr[4]; - tmp20 = MULTIPLY(tmp12, FIX(0.707106781)); /* c4 */ - tmp11 = tmp10 + tmp20; - tmp21 = tmp10 - tmp20 - tmp20; - tmp20 = (INT32) wsptr[2]; - tmp10 = MULTIPLY(tmp20, FIX(1.224744871)); /* c2 */ - tmp20 = tmp11 + tmp10; - tmp22 = tmp11 - tmp10; - - /* Odd part */ - - z1 = (INT32) wsptr[1]; - z2 = (INT32) wsptr[3]; - z3 = (INT32) wsptr[5]; - tmp11 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp10 = tmp11 + ((z1 + z2) << CONST_BITS); - tmp12 = tmp11 + ((z3 - z2) << CONST_BITS); - tmp11 = (z1 - z2 - z3) << CONST_BITS; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp20 + tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[5] = range_limit[(int) RIGHT_SHIFT(tmp20 - tmp10, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp21 + tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp21 - tmp11, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp22 + tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp22 - tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 6; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 5x10 output block. - * - * 10-point IDCT in pass 1 (columns), 5-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_5x10 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp10, tmp11, tmp12, tmp13, tmp14; - INT32 tmp20, tmp21, tmp22, tmp23, tmp24; - INT32 z1, z2, z3, z4, z5; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[5*10]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 5; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - z3 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z3 += ONE << (CONST_BITS-PASS1_BITS-1); - z4 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z1 = MULTIPLY(z4, FIX(1.144122806)); /* c4 */ - z2 = MULTIPLY(z4, FIX(0.437016024)); /* c8 */ - tmp10 = z3 + z1; - tmp11 = z3 - z2; - - tmp22 = RIGHT_SHIFT(z3 - ((z1 - z2) << 1), /* c0 = (c4-c8)*2 */ - CONST_BITS-PASS1_BITS); - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c6 */ - tmp12 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c2-c6 */ - tmp13 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c2+c6 */ - - tmp20 = tmp10 + tmp12; - tmp24 = tmp10 - tmp12; - tmp21 = tmp11 + tmp13; - tmp23 = tmp11 - tmp13; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - z4 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - - tmp11 = z2 + z4; - tmp13 = z2 - z4; - - tmp12 = MULTIPLY(tmp13, FIX(0.309016994)); /* (c3-c7)/2 */ - z5 = z3 << CONST_BITS; - - z2 = MULTIPLY(tmp11, FIX(0.951056516)); /* (c3+c7)/2 */ - z4 = z5 + tmp12; - - tmp10 = MULTIPLY(z1, FIX(1.396802247)) + z2 + z4; /* c1 */ - tmp14 = MULTIPLY(z1, FIX(0.221231742)) - z2 + z4; /* c9 */ - - z2 = MULTIPLY(tmp11, FIX(0.587785252)); /* (c1-c9)/2 */ - z4 = z5 - tmp12 - (tmp13 << (CONST_BITS - 1)); - - tmp12 = (z1 - tmp13 - z3) << PASS1_BITS; - - tmp11 = MULTIPLY(z1, FIX(1.260073511)) - z2 - z4; /* c3 */ - tmp13 = MULTIPLY(z1, FIX(0.642039522)) - z2 + z4; /* c7 */ - - /* Final output stage */ - - wsptr[5*0] = (int) RIGHT_SHIFT(tmp20 + tmp10, CONST_BITS-PASS1_BITS); - wsptr[5*9] = (int) RIGHT_SHIFT(tmp20 - tmp10, CONST_BITS-PASS1_BITS); - wsptr[5*1] = (int) RIGHT_SHIFT(tmp21 + tmp11, CONST_BITS-PASS1_BITS); - wsptr[5*8] = (int) RIGHT_SHIFT(tmp21 - tmp11, CONST_BITS-PASS1_BITS); - wsptr[5*2] = (int) (tmp22 + tmp12); - wsptr[5*7] = (int) (tmp22 - tmp12); - wsptr[5*3] = (int) RIGHT_SHIFT(tmp23 + tmp13, CONST_BITS-PASS1_BITS); - wsptr[5*6] = (int) RIGHT_SHIFT(tmp23 - tmp13, CONST_BITS-PASS1_BITS); - wsptr[5*4] = (int) RIGHT_SHIFT(tmp24 + tmp14, CONST_BITS-PASS1_BITS); - wsptr[5*5] = (int) RIGHT_SHIFT(tmp24 - tmp14, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 10 rows from work array, store into output array. - * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). - */ - wsptr = workspace; - for (ctr = 0; ctr < 10; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp12 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp12 <<= CONST_BITS; - tmp13 = (INT32) wsptr[2]; - tmp14 = (INT32) wsptr[4]; - z1 = MULTIPLY(tmp13 + tmp14, FIX(0.790569415)); /* (c2+c4)/2 */ - z2 = MULTIPLY(tmp13 - tmp14, FIX(0.353553391)); /* (c2-c4)/2 */ - z3 = tmp12 + z2; - tmp10 = z3 + z1; - tmp11 = z3 - z1; - tmp12 -= z2 << 2; - - /* Odd part */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX(0.831253876)); /* c3 */ - tmp13 = z1 + MULTIPLY(z2, FIX(0.513743148)); /* c1-c3 */ - tmp14 = z1 - MULTIPLY(z3, FIX(2.176250899)); /* c1+c3 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[4] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp13, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp11 + tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp11 - tmp14, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 5; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 4x8 output block. - * - * 8-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_4x8 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp3; - INT32 tmp10, tmp11, tmp12, tmp13; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[4*8]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. */ - /* Note results are scaled up by sqrt(8) compared to a true IDCT; */ - /* furthermore, we scale the results by 2**PASS1_BITS. */ - - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 4; ctr > 0; ctr--) { - /* Due to quantization, we will usually find that many of the input - * coefficients are zero, especially the AC terms. We can exploit this - * by short-circuiting the IDCT calculation for any column in which all - * the AC terms are zero. In that case each output is equal to the - * DC coefficient (with scale factor as needed). - * With typical images and quantization tables, half or more of the - * column DCT calculations can be simplified this way. - */ - - if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 && - inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 && - inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 && - inptr[DCTSIZE*7] == 0) { - /* AC terms all zero */ - int dcval = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS; - - wsptr[4*0] = dcval; - wsptr[4*1] = dcval; - wsptr[4*2] = dcval; - wsptr[4*3] = dcval; - wsptr[4*4] = dcval; - wsptr[4*5] = dcval; - wsptr[4*6] = dcval; - wsptr[4*7] = dcval; - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - continue; - } - - /* Even part: reverse the even part of the forward DCT. */ - /* The rotator is sqrt(2)*c(-6). */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - z3 = DEQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); - tmp2 = z1 + MULTIPLY(z2, FIX_0_765366865); - tmp3 = z1 - MULTIPLY(z3, FIX_1_847759065); - - z2 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - z3 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - z2 <<= CONST_BITS; - z3 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - z2 += ONE << (CONST_BITS-PASS1_BITS-1); - - tmp0 = z2 + z3; - tmp1 = z2 - z3; - - tmp10 = tmp0 + tmp2; - tmp13 = tmp0 - tmp2; - tmp11 = tmp1 + tmp3; - tmp12 = tmp1 - tmp3; - - /* Odd part per figure 8; the matrix is unitary and hence its - * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. - */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]); - tmp1 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - tmp3 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - - z2 = tmp0 + tmp2; - z3 = tmp1 + tmp3; - - z1 = MULTIPLY(z2 + z3, FIX_1_175875602); /* sqrt(2) * c3 */ - z2 = MULTIPLY(z2, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */ - z3 = MULTIPLY(z3, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */ - z2 += z1; - z3 += z1; - - z1 = MULTIPLY(tmp0 + tmp3, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */ - tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */ - tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */ - tmp0 += z1 + z2; - tmp3 += z1 + z3; - - z1 = MULTIPLY(tmp1 + tmp2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */ - tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */ - tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */ - tmp1 += z1 + z3; - tmp2 += z1 + z2; - - /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */ - - wsptr[4*0] = (int) RIGHT_SHIFT(tmp10 + tmp3, CONST_BITS-PASS1_BITS); - wsptr[4*7] = (int) RIGHT_SHIFT(tmp10 - tmp3, CONST_BITS-PASS1_BITS); - wsptr[4*1] = (int) RIGHT_SHIFT(tmp11 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[4*6] = (int) RIGHT_SHIFT(tmp11 - tmp2, CONST_BITS-PASS1_BITS); - wsptr[4*2] = (int) RIGHT_SHIFT(tmp12 + tmp1, CONST_BITS-PASS1_BITS); - wsptr[4*5] = (int) RIGHT_SHIFT(tmp12 - tmp1, CONST_BITS-PASS1_BITS); - wsptr[4*3] = (int) RIGHT_SHIFT(tmp13 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[4*4] = (int) RIGHT_SHIFT(tmp13 - tmp0, CONST_BITS-PASS1_BITS); - - inptr++; /* advance pointers to next column */ - quantptr++; - wsptr++; - } - - /* Pass 2: process 8 rows from work array, store into output array. - * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). - */ - wsptr = workspace; - for (ctr = 0; ctr < 8; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp2 = (INT32) wsptr[2]; - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = (INT32) wsptr[1]; - z3 = (INT32) wsptr[3]; - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[3] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp12 + tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp12 - tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 4; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a reduced-size 3x6 output block. - * - * 6-point IDCT in pass 1 (columns), 3-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_3x6 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - int * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - int workspace[3*6]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 3; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp0 <<= CONST_BITS; - /* Add fudge factor here for final descale. */ - tmp0 += ONE << (CONST_BITS-PASS1_BITS-1); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]); - tmp10 = MULTIPLY(tmp2, FIX(0.707106781)); /* c4 */ - tmp1 = tmp0 + tmp10; - tmp11 = RIGHT_SHIFT(tmp0 - tmp10 - tmp10, CONST_BITS-PASS1_BITS); - tmp10 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - tmp0 = MULTIPLY(tmp10, FIX(1.224744871)); /* c2 */ - tmp10 = tmp1 + tmp0; - tmp12 = tmp1 - tmp0; - - /* Odd part */ - - z1 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z2 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - z3 = DEQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]); - tmp1 = MULTIPLY(z1 + z3, FIX(0.366025404)); /* c5 */ - tmp0 = tmp1 + ((z1 + z2) << CONST_BITS); - tmp2 = tmp1 + ((z3 - z2) << CONST_BITS); - tmp1 = (z1 - z2 - z3) << PASS1_BITS; - - /* Final output stage */ - - wsptr[3*0] = (int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*5] = (int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS-PASS1_BITS); - wsptr[3*1] = (int) (tmp11 + tmp1); - wsptr[3*4] = (int) (tmp11 - tmp1); - wsptr[3*2] = (int) RIGHT_SHIFT(tmp12 + tmp2, CONST_BITS-PASS1_BITS); - wsptr[3*3] = (int) RIGHT_SHIFT(tmp12 - tmp2, CONST_BITS-PASS1_BITS); - } - - /* Pass 2: process 6 rows from work array, store into output array. - * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). - */ - wsptr = workspace; - for (ctr = 0; ctr < 6; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp0 = (INT32) wsptr[0] + (ONE << (PASS1_BITS+2)); - tmp0 <<= CONST_BITS; - tmp2 = (INT32) wsptr[2]; - tmp12 = MULTIPLY(tmp2, FIX(0.707106781)); /* c2 */ - tmp10 = tmp0 + tmp12; - tmp2 = tmp0 - tmp12 - tmp12; - - /* Odd part */ - - tmp12 = (INT32) wsptr[1]; - tmp0 = MULTIPLY(tmp12, FIX(1.224744871)); /* c1 */ - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[2] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp2, - CONST_BITS+PASS1_BITS+3) - & RANGE_MASK]; - - wsptr += 3; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 2x4 output block. - * - * 4-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_2x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp2, tmp10, tmp12; - INT32 z1, z2, z3; - JCOEFPTR inptr; - ISLOW_MULT_TYPE * quantptr; - INT32 * wsptr; - JSAMPROW outptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - int ctr; - INT32 workspace[2*4]; /* buffers data between passes */ - SHIFT_TEMPS - - /* Pass 1: process columns from input, store into work array. - * 4-point IDCT kernel, - * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. - */ - inptr = coef_block; - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - wsptr = workspace; - for (ctr = 0; ctr < 2; ctr++, inptr++, quantptr++, wsptr++) { - /* Even part */ - - tmp0 = DEQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]); - tmp2 = DEQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]); - - tmp10 = (tmp0 + tmp2) << CONST_BITS; - tmp12 = (tmp0 - tmp2) << CONST_BITS; - - /* Odd part */ - /* Same rotation as in the even part of the 8x8 LL&M IDCT */ - - z2 = DEQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]); - z3 = DEQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]); - - z1 = MULTIPLY(z2 + z3, FIX_0_541196100); /* c6 */ - tmp0 = z1 + MULTIPLY(z2, FIX_0_765366865); /* c2-c6 */ - tmp2 = z1 - MULTIPLY(z3, FIX_1_847759065); /* c2+c6 */ - - /* Final output stage */ - - wsptr[2*0] = tmp10 + tmp0; - wsptr[2*3] = tmp10 - tmp0; - wsptr[2*1] = tmp12 + tmp2; - wsptr[2*2] = tmp12 - tmp2; - } - - /* Pass 2: process 4 rows from work array, store into output array. */ - - wsptr = workspace; - for (ctr = 0; ctr < 4; ctr++) { - outptr = output_buf[ctr] + output_col; - - /* Even part */ - - /* Add fudge factor here for final descale. */ - tmp10 = wsptr[0] + (ONE << (CONST_BITS+2)); - - /* Odd part */ - - tmp0 = wsptr[1]; - - /* Final output stage */ - - outptr[0] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, CONST_BITS+3) - & RANGE_MASK]; - outptr[1] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, CONST_BITS+3) - & RANGE_MASK]; - - wsptr += 2; /* advance pointer to next row */ - } -} - - -/* - * Perform dequantization and inverse DCT on one block of coefficients, - * producing a 1x2 output block. - * - * 2-point IDCT in pass 1 (columns), 1-point in pass 2 (rows). - */ - -GLOBAL(void) -jpeg_idct_1x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col) -{ - INT32 tmp0, tmp10; - ISLOW_MULT_TYPE * quantptr; - JSAMPLE *range_limit = IDCT_range_limit(cinfo); - SHIFT_TEMPS - - /* Process 1 column from input, store into output array. */ - - quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table; - - /* Even part */ - - tmp10 = DEQUANTIZE(coef_block[DCTSIZE*0], quantptr[DCTSIZE*0]); - /* Add fudge factor here for final descale. */ - tmp10 += ONE << 2; - - /* Odd part */ - - tmp0 = DEQUANTIZE(coef_block[DCTSIZE*1], quantptr[DCTSIZE*1]); - - /* Final output stage */ - - output_buf[0][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 + tmp0, 3) - & RANGE_MASK]; - output_buf[1][output_col] = range_limit[(int) RIGHT_SHIFT(tmp10 - tmp0, 3) - & RANGE_MASK]; -} - -#endif /* IDCT_SCALING_SUPPORTED */ -#endif /* DCT_ISLOW_SUPPORTED */ diff --git a/jpeg/jinclude.h b/jpeg/jinclude.h deleted file mode 100755 index 0a4f151..0000000 --- a/jpeg/jinclude.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * jinclude.h - * - * Copyright (C) 1991-1994, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file exists to provide a single place to fix any problems with - * including the wrong system include files. (Common problems are taken - * care of by the standard jconfig symbols, but on really weird systems - * you may have to edit this file.) - * - * NOTE: this file is NOT intended to be included by applications using the - * JPEG library. Most applications need only include jpeglib.h. - */ - - -/* Include auto-config file to find out which system include files we need. */ - -#include "jconfig.h" /* auto configuration options */ -#define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ - -/* - * We need the NULL macro and size_t typedef. - * On an ANSI-conforming system it is sufficient to include . - * Otherwise, we get them from or ; we may have to - * pull in as well. - * Note that the core JPEG library does not require ; - * only the default error handler and data source/destination modules do. - * But we must pull it in because of the references to FILE in jpeglib.h. - * You can remove those references if you want to compile without . - */ - -#ifdef HAVE_STDDEF_H -#include -#endif - -#ifdef HAVE_STDLIB_H -#include -#endif - -#ifdef NEED_SYS_TYPES_H -#include -#endif - -#include - -/* - * We need memory copying and zeroing functions, plus strncpy(). - * ANSI and System V implementations declare these in . - * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). - * Some systems may declare memset and memcpy in . - * - * NOTE: we assume the size parameters to these functions are of type size_t. - * Change the casts in these macros if not! - */ - -#ifdef NEED_BSD_STRINGS - -#include -#define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) -#define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) - -#else /* not BSD, assume ANSI/SysV string lib */ - -#include -#define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) -#define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) - -#endif - -/* - * In ANSI C, and indeed any rational implementation, size_t is also the - * type returned by sizeof(). However, it seems there are some irrational - * implementations out there, in which sizeof() returns an int even though - * size_t is defined as long or unsigned long. To ensure consistent results - * we always use this SIZEOF() macro in place of using sizeof() directly. - */ - -#define SIZEOF(object) ((size_t) sizeof(object)) - -/* - * The modules that use fread() and fwrite() always invoke them through - * these macros. On some systems you may need to twiddle the argument casts. - * CAUTION: argument order is different from underlying functions! - */ - -#define JFREAD(file,buf,sizeofbuf) \ - ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) -#define JFWRITE(file,buf,sizeofbuf) \ - ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) diff --git a/jpeg/jmemansi.c b/jpeg/jmemansi.c deleted file mode 100755 index 2d93e49..0000000 --- a/jpeg/jmemansi.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - * jmemansi.c - * - * Copyright (C) 1992-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a simple generic implementation of the system- - * dependent portion of the JPEG memory manager. This implementation - * assumes that you have the ANSI-standard library routine tmpfile(). - * Also, the problem of determining the amount of memory available - * is shoved onto the user. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - -#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ -#define SEEK_SET 0 /* if not, assume 0 is correct */ -#endif - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFREAD(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFWRITE(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - fclose(info->temp_file); - /* Since this implementation uses tmpfile() to create the file, - * no explicit file deletion is needed. - */ -} - - -/* - * Initial opening of a backing-store object. - * - * This version uses tmpfile(), which constructs a suitable file name - * behind the scenes. We don't have to use info->temp_name[] at all; - * indeed, we can't even find out the actual name of the temp file. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - if ((info->temp_file = tmpfile()) == NULL) - ERREXITS(cinfo, JERR_TFILE_CREATE, ""); - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpeg/jmemdos.c b/jpeg/jmemdos.c deleted file mode 100755 index 60b45c6..0000000 --- a/jpeg/jmemdos.c +++ /dev/null @@ -1,638 +0,0 @@ -/* - * jmemdos.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides an MS-DOS-compatible implementation of the system- - * dependent portion of the JPEG memory manager. Temporary data can be - * stored in extended or expanded memory as well as in regular DOS files. - * - * If you use this file, you must be sure that NEED_FAR_POINTERS is defined - * if you compile in a small-data memory model; it should NOT be defined if - * you use a large-data memory model. This file is not recommended if you - * are using a flat-memory-space 386 environment such as DJGCC or Watcom C. - * Also, this code will NOT work if struct fields are aligned on greater than - * 2-byte boundaries. - * - * Based on code contributed by Ge' Weijers. - */ - -/* - * If you have both extended and expanded memory, you may want to change the - * order in which they are tried in jopen_backing_store. On a 286 machine - * expanded memory is usually faster, since extended memory access involves - * an expensive protected-mode-and-back switch. On 386 and better, extended - * memory is usually faster. As distributed, the code tries extended memory - * first (what? not everyone has a 386? :-). - * - * You can disable use of extended/expanded memory entirely by altering these - * definitions or overriding them from the Makefile (eg, -DEMS_SUPPORTED=0). - */ - -#ifndef XMS_SUPPORTED -#define XMS_SUPPORTED 1 -#endif -#ifndef EMS_SUPPORTED -#define EMS_SUPPORTED 1 -#endif - - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare these */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -extern char * getenv JPP((const char * name)); -#endif - -#ifdef NEED_FAR_POINTERS - -#ifdef __TURBOC__ -/* These definitions work for Borland C (Turbo C) */ -#include /* need farmalloc(), farfree() */ -#define far_malloc(x) farmalloc(x) -#define far_free(x) farfree(x) -#else -/* These definitions work for Microsoft C and compatible compilers */ -#include /* need _fmalloc(), _ffree() */ -#define far_malloc(x) _fmalloc(x) -#define far_free(x) _ffree(x) -#endif - -#else /* not NEED_FAR_POINTERS */ - -#define far_malloc(x) malloc(x) -#define far_free(x) free(x) - -#endif /* NEED_FAR_POINTERS */ - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#else -#define READ_BINARY "rb" -#endif - -#ifndef USE_MSDOS_MEMMGR /* make sure user got configuration right */ - You forgot to define USE_MSDOS_MEMMGR in jconfig.h. /* deliberate syntax error */ -#endif - -#if MAX_ALLOC_CHUNK >= 65535L /* make sure jconfig.h got this right */ - MAX_ALLOC_CHUNK should be less than 64K. /* deliberate syntax error */ -#endif - - -/* - * Declarations for assembly-language support routines (see jmemdosa.asm). - * - * The functions are declared "far" as are all their pointer arguments; - * this ensures the assembly source code will work regardless of the - * compiler memory model. We assume "short" is 16 bits, "long" is 32. - */ - -typedef void far * XMSDRIVER; /* actually a pointer to code */ -typedef struct { /* registers for calling XMS driver */ - unsigned short ax, dx, bx; - void far * ds_si; - } XMScontext; -typedef struct { /* registers for calling EMS driver */ - unsigned short ax, dx, bx; - void far * ds_si; - } EMScontext; - -extern short far jdos_open JPP((short far * handle, char far * filename)); -extern short far jdos_close JPP((short handle)); -extern short far jdos_seek JPP((short handle, long offset)); -extern short far jdos_read JPP((short handle, void far * buffer, - unsigned short count)); -extern short far jdos_write JPP((short handle, void far * buffer, - unsigned short count)); -extern void far jxms_getdriver JPP((XMSDRIVER far *)); -extern void far jxms_calldriver JPP((XMSDRIVER, XMScontext far *)); -extern short far jems_available JPP((void)); -extern void far jems_calldriver JPP((EMScontext far *)); - - -/* - * Selection of a file name for a temporary file. - * This is highly system-dependent, and you may want to customize it. - */ - -static int next_file_num; /* to distinguish among several temp files */ - -LOCAL(void) -select_file_name (char * fname) -{ - const char * env; - char * ptr; - FILE * tfile; - - /* Keep generating file names till we find one that's not in use */ - for (;;) { - /* Get temp directory name from environment TMP or TEMP variable; - * if none, use "." - */ - if ((env = (const char *) getenv("TMP")) == NULL) - if ((env = (const char *) getenv("TEMP")) == NULL) - env = "."; - if (*env == '\0') /* null string means "." */ - env = "."; - ptr = fname; /* copy name to fname */ - while (*env != '\0') - *ptr++ = *env++; - if (ptr[-1] != '\\' && ptr[-1] != '/') - *ptr++ = '\\'; /* append backslash if not in env variable */ - /* Append a suitable file name */ - next_file_num++; /* advance counter */ - sprintf(ptr, "JPG%03d.TMP", next_file_num); - /* Probe to see if file name is already in use */ - if ((tfile = fopen(fname, READ_BINARY)) == NULL) - break; - fclose(tfile); /* oops, it's there; close tfile & try again */ - } -} - - -/* - * Near-memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are allocated in far memory, if possible - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) far_malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - far_free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 300000L /* for total usage about 450K */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - -/* - * For MS-DOS we support three types of backing storage: - * 1. Conventional DOS files. We access these by direct DOS calls rather - * than via the stdio package. This provides a bit better performance, - * but the real reason is that the buffers to be read or written are FAR. - * The stdio library for small-data memory models can't cope with that. - * 2. Extended memory, accessed per the XMS V2.0 specification. - * 3. Expanded memory, accessed per the LIM/EMS 4.0 specification. - * You'll need copies of those specs to make sense of the related code. - * The specs are available by Internet FTP from the SIMTEL archives - * (oak.oakland.edu and its various mirror sites). See files - * pub/msdos/microsoft/xms20.arc and pub/msdos/info/limems41.zip. - */ - - -/* - * Access methods for a DOS file. - */ - - -METHODDEF(void) -read_file_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (jdos_seek(info->handle.file_handle, file_offset)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ - if (byte_count > 65535L) /* safety check */ - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - if (jdos_read(info->handle.file_handle, buffer_address, - (unsigned short) byte_count)) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_file_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (jdos_seek(info->handle.file_handle, file_offset)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */ - if (byte_count > 65535L) /* safety check */ - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - if (jdos_write(info->handle.file_handle, buffer_address, - (unsigned short) byte_count)) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_file_store (j_common_ptr cinfo, backing_store_ptr info) -{ - jdos_close(info->handle.file_handle); /* close the file */ - remove(info->temp_name); /* delete the file */ -/* If your system doesn't have remove(), try unlink() instead. - * remove() is the ANSI-standard name for this function, but - * unlink() was more common in pre-ANSI systems. - */ - TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); -} - - -LOCAL(boolean) -open_file_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - short handle; - - select_file_name(info->temp_name); - if (jdos_open((short far *) & handle, (char far *) info->temp_name)) { - /* might as well exit since jpeg_open_backing_store will fail anyway */ - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - return FALSE; - } - info->handle.file_handle = handle; - info->read_backing_store = read_file_store; - info->write_backing_store = write_file_store; - info->close_backing_store = close_file_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); - return TRUE; /* succeeded */ -} - - -/* - * Access methods for extended memory. - */ - -#if XMS_SUPPORTED - -static XMSDRIVER xms_driver; /* saved address of XMS driver */ - -typedef union { /* either long offset or real-mode pointer */ - long offset; - void far * ptr; - } XMSPTR; - -typedef struct { /* XMS move specification structure */ - long length; - XMSH src_handle; - XMSPTR src; - XMSH dst_handle; - XMSPTR dst; - } XMSspec; - -#define ODD(X) (((X) & 1L) != 0) - - -METHODDEF(void) -read_xms_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - XMScontext ctx; - XMSspec spec; - char endbuffer[2]; - - /* The XMS driver can't cope with an odd length, so handle the last byte - * specially if byte_count is odd. We don't expect this to be common. - */ - - spec.length = byte_count & (~ 1L); - spec.src_handle = info->handle.xms_handle; - spec.src.offset = file_offset; - spec.dst_handle = 0; - spec.dst.ptr = buffer_address; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x0b00; /* EMB move */ - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - ERREXIT(cinfo, JERR_XMS_READ); - - if (ODD(byte_count)) { - read_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - ((char FAR *) buffer_address)[byte_count - 1L] = endbuffer[0]; - } -} - - -METHODDEF(void) -write_xms_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - XMScontext ctx; - XMSspec spec; - char endbuffer[2]; - - /* The XMS driver can't cope with an odd length, so handle the last byte - * specially if byte_count is odd. We don't expect this to be common. - */ - - spec.length = byte_count & (~ 1L); - spec.src_handle = 0; - spec.src.ptr = buffer_address; - spec.dst_handle = info->handle.xms_handle; - spec.dst.offset = file_offset; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x0b00; /* EMB move */ - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - ERREXIT(cinfo, JERR_XMS_WRITE); - - if (ODD(byte_count)) { - read_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - endbuffer[0] = ((char FAR *) buffer_address)[byte_count - 1L]; - write_xms_store(cinfo, info, (void FAR *) endbuffer, - file_offset + byte_count - 1L, 2L); - } -} - - -METHODDEF(void) -close_xms_store (j_common_ptr cinfo, backing_store_ptr info) -{ - XMScontext ctx; - - ctx.dx = info->handle.xms_handle; - ctx.ax = 0x0a00; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - TRACEMS1(cinfo, 1, JTRC_XMS_CLOSE, info->handle.xms_handle); - /* we ignore any error return from the driver */ -} - - -LOCAL(boolean) -open_xms_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - XMScontext ctx; - - /* Get address of XMS driver */ - jxms_getdriver((XMSDRIVER far *) & xms_driver); - if (xms_driver == NULL) - return FALSE; /* no driver to be had */ - - /* Get version number, must be >= 2.00 */ - ctx.ax = 0x0000; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax < (unsigned short) 0x0200) - return FALSE; - - /* Try to get space (expressed in kilobytes) */ - ctx.dx = (unsigned short) ((total_bytes_needed + 1023L) >> 10); - ctx.ax = 0x0900; - jxms_calldriver(xms_driver, (XMScontext far *) & ctx); - if (ctx.ax != 1) - return FALSE; - - /* Succeeded, save the handle and away we go */ - info->handle.xms_handle = ctx.dx; - info->read_backing_store = read_xms_store; - info->write_backing_store = write_xms_store; - info->close_backing_store = close_xms_store; - TRACEMS1(cinfo, 1, JTRC_XMS_OPEN, ctx.dx); - return TRUE; /* succeeded */ -} - -#endif /* XMS_SUPPORTED */ - - -/* - * Access methods for expanded memory. - */ - -#if EMS_SUPPORTED - -/* The EMS move specification structure requires word and long fields aligned - * at odd byte boundaries. Some compilers will align struct fields at even - * byte boundaries. While it's usually possible to force byte alignment, - * that causes an overall performance penalty and may pose problems in merging - * JPEG into a larger application. Instead we accept some rather dirty code - * here. Note this code would fail if the hardware did not allow odd-byte - * word & long accesses, but all 80x86 CPUs do. - */ - -typedef void far * EMSPTR; - -typedef union { /* EMS move specification structure */ - long length; /* It's easy to access first 4 bytes */ - char bytes[18]; /* Misaligned fields in here! */ - } EMSspec; - -/* Macros for accessing misaligned fields */ -#define FIELD_AT(spec,offset,type) (*((type *) &(spec.bytes[offset]))) -#define SRC_TYPE(spec) FIELD_AT(spec,4,char) -#define SRC_HANDLE(spec) FIELD_AT(spec,5,EMSH) -#define SRC_OFFSET(spec) FIELD_AT(spec,7,unsigned short) -#define SRC_PAGE(spec) FIELD_AT(spec,9,unsigned short) -#define SRC_PTR(spec) FIELD_AT(spec,7,EMSPTR) -#define DST_TYPE(spec) FIELD_AT(spec,11,char) -#define DST_HANDLE(spec) FIELD_AT(spec,12,EMSH) -#define DST_OFFSET(spec) FIELD_AT(spec,14,unsigned short) -#define DST_PAGE(spec) FIELD_AT(spec,16,unsigned short) -#define DST_PTR(spec) FIELD_AT(spec,14,EMSPTR) - -#define EMSPAGESIZE 16384L /* gospel, see the EMS specs */ - -#define HIBYTE(W) (((W) >> 8) & 0xFF) -#define LOBYTE(W) ((W) & 0xFF) - - -METHODDEF(void) -read_ems_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - EMScontext ctx; - EMSspec spec; - - spec.length = byte_count; - SRC_TYPE(spec) = 1; - SRC_HANDLE(spec) = info->handle.ems_handle; - SRC_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); - SRC_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); - DST_TYPE(spec) = 0; - DST_HANDLE(spec) = 0; - DST_PTR(spec) = buffer_address; - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x5700; /* move memory region */ - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - ERREXIT(cinfo, JERR_EMS_READ); -} - - -METHODDEF(void) -write_ems_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - EMScontext ctx; - EMSspec spec; - - spec.length = byte_count; - SRC_TYPE(spec) = 0; - SRC_HANDLE(spec) = 0; - SRC_PTR(spec) = buffer_address; - DST_TYPE(spec) = 1; - DST_HANDLE(spec) = info->handle.ems_handle; - DST_PAGE(spec) = (unsigned short) (file_offset / EMSPAGESIZE); - DST_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE); - - ctx.ds_si = (void far *) & spec; - ctx.ax = 0x5700; /* move memory region */ - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - ERREXIT(cinfo, JERR_EMS_WRITE); -} - - -METHODDEF(void) -close_ems_store (j_common_ptr cinfo, backing_store_ptr info) -{ - EMScontext ctx; - - ctx.ax = 0x4500; - ctx.dx = info->handle.ems_handle; - jems_calldriver((EMScontext far *) & ctx); - TRACEMS1(cinfo, 1, JTRC_EMS_CLOSE, info->handle.ems_handle); - /* we ignore any error return from the driver */ -} - - -LOCAL(boolean) -open_ems_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - EMScontext ctx; - - /* Is EMS driver there? */ - if (! jems_available()) - return FALSE; - - /* Get status, make sure EMS is OK */ - ctx.ax = 0x4000; - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - return FALSE; - - /* Get version, must be >= 4.0 */ - ctx.ax = 0x4600; - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0 || LOBYTE(ctx.ax) < 0x40) - return FALSE; - - /* Try to allocate requested space */ - ctx.ax = 0x4300; - ctx.bx = (unsigned short) ((total_bytes_needed + EMSPAGESIZE-1L) / EMSPAGESIZE); - jems_calldriver((EMScontext far *) & ctx); - if (HIBYTE(ctx.ax) != 0) - return FALSE; - - /* Succeeded, save the handle and away we go */ - info->handle.ems_handle = ctx.dx; - info->read_backing_store = read_ems_store; - info->write_backing_store = write_ems_store; - info->close_backing_store = close_ems_store; - TRACEMS1(cinfo, 1, JTRC_EMS_OPEN, ctx.dx); - return TRUE; /* succeeded */ -} - -#endif /* EMS_SUPPORTED */ - - -/* - * Initial opening of a backing-store object. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - /* Try extended memory, then expanded memory, then regular file. */ -#if XMS_SUPPORTED - if (open_xms_store(cinfo, info, total_bytes_needed)) - return; -#endif -#if EMS_SUPPORTED - if (open_ems_store(cinfo, info, total_bytes_needed)) - return; -#endif - if (open_file_store(cinfo, info, total_bytes_needed)) - return; - ERREXITS(cinfo, JERR_TFILE_CREATE, ""); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; /* initialize temp file name generator */ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* Microsoft C, at least in v6.00A, will not successfully reclaim freed - * blocks of size > 32Kbytes unless we give it a kick in the rear, like so: - */ -#ifdef NEED_FHEAPMIN - _fheapmin(); -#endif -} diff --git a/jpeg/jmemdosa.asm b/jpeg/jmemdosa.asm deleted file mode 100755 index ecd4372..0000000 --- a/jpeg/jmemdosa.asm +++ /dev/null @@ -1,379 +0,0 @@ -; -; jmemdosa.asm -; -; Copyright (C) 1992, Thomas G. Lane. -; This file is part of the Independent JPEG Group's software. -; For conditions of distribution and use, see the accompanying README file. -; -; This file contains low-level interface routines to support the MS-DOS -; backing store manager (jmemdos.c). Routines are provided to access disk -; files through direct DOS calls, and to access XMS and EMS drivers. -; -; This file should assemble with Microsoft's MASM or any compatible -; assembler (including Borland's Turbo Assembler). If you haven't got -; a compatible assembler, better fall back to jmemansi.c or jmemname.c. -; -; To minimize dependence on the C compiler's register usage conventions, -; we save and restore all 8086 registers, even though most compilers only -; require SI,DI,DS to be preserved. Also, we use only 16-bit-wide return -; values, which everybody returns in AX. -; -; Based on code contributed by Ge' Weijers. -; - -JMEMDOSA_TXT segment byte public 'CODE' - - assume cs:JMEMDOSA_TXT - - public _jdos_open - public _jdos_close - public _jdos_seek - public _jdos_read - public _jdos_write - public _jxms_getdriver - public _jxms_calldriver - public _jems_available - public _jems_calldriver - -; -; short far jdos_open (short far * handle, char far * filename) -; -; Create and open a temporary file -; -_jdos_open proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov cx,0 ; normal file attributes - lds dx,dword ptr [bp+10] ; get filename pointer - mov ah,3ch ; create file - int 21h - jc open_err ; if failed, return error code - lds bx,dword ptr [bp+6] ; get handle pointer - mov word ptr [bx],ax ; save the handle - xor ax,ax ; return zero for OK -open_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_open endp - - -; -; short far jdos_close (short handle) -; -; Close the file handle -; -_jdos_close proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - mov ah,3eh ; close file - int 21h - jc close_err ; if failed, return error code - xor ax,ax ; return zero for OK -close_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_close endp - - -; -; short far jdos_seek (short handle, long offset) -; -; Set file position -; -_jdos_seek proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - mov dx,word ptr [bp+8] ; LS offset - mov cx,word ptr [bp+10] ; MS offset - mov ax,4200h ; absolute seek - int 21h - jc seek_err ; if failed, return error code - xor ax,ax ; return zero for OK -seek_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_seek endp - - -; -; short far jdos_read (short handle, void far * buffer, unsigned short count) -; -; Read from file -; -_jdos_read proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - lds dx,dword ptr [bp+8] ; buffer address - mov cx,word ptr [bp+12] ; number of bytes - mov ah,3fh ; read file - int 21h - jc read_err ; if failed, return error code - cmp ax,word ptr [bp+12] ; make sure all bytes were read - je read_ok - mov ax,1 ; else return 1 for not OK - jmp short read_err -read_ok: xor ax,ax ; return zero for OK -read_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_read endp - - -; -; short far jdos_write (short handle, void far * buffer, unsigned short count) -; -; Write to file -; -_jdos_write proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov bx,word ptr [bp+6] ; file handle - lds dx,dword ptr [bp+8] ; buffer address - mov cx,word ptr [bp+12] ; number of bytes - mov ah,40h ; write file - int 21h - jc write_err ; if failed, return error code - cmp ax,word ptr [bp+12] ; make sure all bytes written - je write_ok - mov ax,1 ; else return 1 for not OK - jmp short write_err -write_ok: xor ax,ax ; return zero for OK -write_err: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jdos_write endp - - -; -; void far jxms_getdriver (XMSDRIVER far *) -; -; Get the address of the XMS driver, or NULL if not available -; -_jxms_getdriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov ax,4300h ; call multiplex interrupt with - int 2fh ; a magic cookie, hex 4300 - cmp al,80h ; AL should contain hex 80 - je xmsavail - xor dx,dx ; no XMS driver available - xor ax,ax ; return a nil pointer - jmp short xmsavail_done -xmsavail: mov ax,4310h ; fetch driver address with - int 2fh ; another magic cookie - mov dx,es ; copy address to dx:ax - mov ax,bx -xmsavail_done: les bx,dword ptr [bp+6] ; get pointer to return value - mov word ptr es:[bx],ax - mov word ptr es:[bx+2],dx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jxms_getdriver endp - - -; -; void far jxms_calldriver (XMSDRIVER, XMScontext far *) -; -; The XMScontext structure contains values for the AX,DX,BX,SI,DS registers. -; These are loaded, the XMS call is performed, and the new values of the -; AX,DX,BX registers are written back to the context structure. -; -_jxms_calldriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - les bx,dword ptr [bp+10] ; get XMScontext pointer - mov ax,word ptr es:[bx] ; load registers - mov dx,word ptr es:[bx+2] - mov si,word ptr es:[bx+6] - mov ds,word ptr es:[bx+8] - mov bx,word ptr es:[bx+4] - call dword ptr [bp+6] ; call the driver - mov cx,bx ; save returned BX for a sec - les bx,dword ptr [bp+10] ; get XMScontext pointer - mov word ptr es:[bx],ax ; put back ax,dx,bx - mov word ptr es:[bx+2],dx - mov word ptr es:[bx+4],cx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jxms_calldriver endp - - -; -; short far jems_available (void) -; -; Have we got an EMS driver? (this comes straight from the EMS 4.0 specs) -; -_jems_available proc far - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - mov ax,3567h ; get interrupt vector 67h - int 21h - push cs - pop ds - mov di,000ah ; check offs 10 in returned seg - lea si,ASCII_device_name ; against literal string - mov cx,8 - cld - repe cmpsb - jne no_ems - mov ax,1 ; match, it's there - jmp short avail_done -no_ems: xor ax,ax ; it's not there -avail_done: pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - ret - -ASCII_device_name db "EMMXXXX0" - -_jems_available endp - - -; -; void far jems_calldriver (EMScontext far *) -; -; The EMScontext structure contains values for the AX,DX,BX,SI,DS registers. -; These are loaded, the EMS trap is performed, and the new values of the -; AX,DX,BX registers are written back to the context structure. -; -_jems_calldriver proc far - push bp ; linkage - mov bp,sp - push si ; save all registers for safety - push di - push bx - push cx - push dx - push es - push ds - les bx,dword ptr [bp+6] ; get EMScontext pointer - mov ax,word ptr es:[bx] ; load registers - mov dx,word ptr es:[bx+2] - mov si,word ptr es:[bx+6] - mov ds,word ptr es:[bx+8] - mov bx,word ptr es:[bx+4] - int 67h ; call the EMS driver - mov cx,bx ; save returned BX for a sec - les bx,dword ptr [bp+6] ; get EMScontext pointer - mov word ptr es:[bx],ax ; put back ax,dx,bx - mov word ptr es:[bx+2],dx - mov word ptr es:[bx+4],cx - pop ds ; restore registers and exit - pop es - pop dx - pop cx - pop bx - pop di - pop si - pop bp - ret -_jems_calldriver endp - -JMEMDOSA_TXT ends - - end diff --git a/jpeg/jmemmac.c b/jpeg/jmemmac.c deleted file mode 100755 index 106f9be..0000000 --- a/jpeg/jmemmac.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - * jmemmac.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * jmemmac.c provides an Apple Macintosh implementation of the system- - * dependent portion of the JPEG memory manager. - * - * If you use jmemmac.c, then you must define USE_MAC_MEMMGR in the - * JPEG_INTERNALS part of jconfig.h. - * - * jmemmac.c uses the Macintosh toolbox routines NewPtr and DisposePtr - * instead of malloc and free. It accurately determines the amount of - * memory available by using CompactMem. Notice that if left to its - * own devices, this code can chew up all available space in the - * application's zone, with the exception of the rather small "slop" - * factor computed in jpeg_mem_available(). The application can ensure - * that more space is left over by reducing max_memory_to_use. - * - * Large images are swapped to disk using temporary files and System 7.0+'s - * temporary folder functionality. - * - * Note that jmemmac.c depends on two features of MacOS that were first - * introduced in System 7: FindFolder and the FSSpec-based calls. - * If your application uses jmemmac.c and is run under System 6 or earlier, - * and the jpeg library decides it needs a temporary file, it will abort, - * printing error messages about requiring System 7. (If no temporary files - * are created, it will run fine.) - * - * If you want to use jmemmac.c in an application that might be used with - * System 6 or earlier, then you should remove dependencies on FindFolder - * and the FSSpec calls. You will need to replace FindFolder with some - * other mechanism for finding a place to put temporary files, and you - * should replace the FSSpec calls with their HFS equivalents: - * - * FSpDelete -> HDelete - * FSpGetFInfo -> HGetFInfo - * FSpCreate -> HCreate - * FSpOpenDF -> HOpen *** Note: not HOpenDF *** - * FSMakeFSSpec -> (fill in spec by hand.) - * - * (Use HOpen instead of HOpenDF. HOpen is just a glue-interface to PBHOpen, - * which is on all HFS macs. HOpenDF is a System 7 addition which avoids the - * ages-old problem of names starting with a period.) - * - * Contributed by Sam Bushell (jsam@iagu.on.net) and - * Dan Gildor (gyld@in-touch.com). - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef USE_MAC_MEMMGR /* make sure user got configuration right */ - You forgot to define USE_MAC_MEMMGR in jconfig.h. /* deliberate syntax error */ -#endif - -#include /* we use the MacOS memory manager */ -#include /* we use the MacOS File stuff */ -#include /* we use the MacOS HFS stuff */ -#include /* for smSystemScript */ -#include /* we use Gestalt to test for specific functionality */ - -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "JPG%03d.TMP" -#endif - -static int next_file_num; /* to distinguish among several temp files */ - - -/* - * Memory allocation and freeing are controlled by the MacOS library - * routines NewPtr() and DisposePtr(), which allocate fixed-address - * storage. Unfortunately, the IJG library isn't smart enough to cope - * with relocatable storage. - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) NewPtr(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - DisposePtr((Ptr) object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: we include FAR keywords in the routine declarations simply for - * consistency with the rest of the IJG code; FAR should expand to empty - * on rational architectures like the Mac. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) NewPtr(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - DisposePtr((Ptr) object); -} - - -/* - * This routine computes the total memory space available for allocation. - */ - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - long limit = cinfo->mem->max_memory_to_use - already_allocated; - long slop, mem; - - /* Don't ask for more than what application has told us we may use */ - if (max_bytes_needed > limit && limit > 0) - max_bytes_needed = limit; - /* Find whether there's a big enough free block in the heap. - * CompactMem tries to create a contiguous block of the requested size, - * and then returns the size of the largest free block (which could be - * much more or much less than we asked for). - * We add some slop to ensure we don't use up all available memory. - */ - slop = max_bytes_needed / 16 + 32768L; - mem = CompactMem(max_bytes_needed + slop) - slop; - if (mem < 0) - mem = 0; /* sigh, couldn't even get the slop */ - /* Don't take more than the application says we can have */ - if (mem > limit && limit > 0) - mem = limit; - return mem; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - long bytes = byte_count; - long retVal; - - if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) - ERREXIT(cinfo, JERR_TFILE_SEEK); - - retVal = FSRead ( info->temp_file, &bytes, - (unsigned char *) buffer_address ); - if ( retVal != noErr || bytes != byte_count ) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - long bytes = byte_count; - long retVal; - - if ( SetFPos ( info->temp_file, fsFromStart, file_offset ) != noErr ) - ERREXIT(cinfo, JERR_TFILE_SEEK); - - retVal = FSWrite ( info->temp_file, &bytes, - (unsigned char *) buffer_address ); - if ( retVal != noErr || bytes != byte_count ) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - FSClose ( info->temp_file ); - FSpDelete ( &(info->tempSpec) ); -} - - -/* - * Initial opening of a backing-store object. - * - * This version uses FindFolder to find the Temporary Items folder, - * and puts the temporary file in there. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - short tmpRef, vRefNum; - long dirID; - FInfo finderInfo; - FSSpec theSpec; - Str255 fName; - OSErr osErr; - long gestaltResponse = 0; - - /* Check that FSSpec calls are available. */ - osErr = Gestalt( gestaltFSAttr, &gestaltResponse ); - if ( ( osErr != noErr ) - || !( gestaltResponse & (1<temp_name, TEMP_FILE_NAME, next_file_num); - strcpy ( (Ptr)fName+1, info->temp_name ); - *fName = strlen (info->temp_name); - osErr = FSMakeFSSpec ( vRefNum, dirID, fName, &theSpec ); - - if ( (osErr = FSpGetFInfo ( &theSpec, &finderInfo ) ) != noErr ) - break; - } - - osErr = FSpCreate ( &theSpec, '????', '????', smSystemScript ); - if ( osErr != noErr ) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - - osErr = FSpOpenDF ( &theSpec, fsRdWrPerm, &(info->temp_file) ); - if ( osErr != noErr ) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - - info->tempSpec = theSpec; - - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; - - /* max_memory_to_use will be initialized to FreeMem()'s result; - * the calling application might later reduce it, for example - * to leave room to invoke multiple JPEG objects. - * Note that FreeMem returns the total number of free bytes; - * it may not be possible to allocate a single block of this size. - */ - return FreeMem(); -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpeg/jmemmgr.c b/jpeg/jmemmgr.c deleted file mode 100755 index f0e83fb..0000000 --- a/jpeg/jmemmgr.c +++ /dev/null @@ -1,1119 +0,0 @@ -/* - * jmemmgr.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains the JPEG system-independent memory management - * routines. This code is usable across a wide variety of machines; most - * of the system dependencies have been isolated in a separate file. - * The major functions provided here are: - * * pool-based allocation and freeing of memory; - * * policy decisions about how to divide available memory among the - * virtual arrays; - * * control logic for swapping virtual arrays between main memory and - * backing storage. - * The separate system-dependent file provides the actual backing-storage - * access code, and it contains the policy decision about how much total - * main memory to use. - * This file is system-dependent in the sense that some of its functions - * are unnecessary in some systems. For example, if there is enough virtual - * memory so that backing storage will never be used, much of the virtual - * array control logic could be removed. (Of course, if you have that much - * memory then you shouldn't care about a little bit of unused code...) - */ - -#define JPEG_INTERNALS -#define AM_MEMORY_MANAGER /* we define jvirt_Xarray_control structs */ -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef NO_GETENV -#ifndef HAVE_STDLIB_H /* should declare getenv() */ -extern char * getenv JPP((const char * name)); -#endif -#endif - - -/* - * Some important notes: - * The allocation routines provided here must never return NULL. - * They should exit to error_exit if unsuccessful. - * - * It's not a good idea to try to merge the sarray and barray routines, - * even though they are textually almost the same, because samples are - * usually stored as bytes while coefficients are shorts or ints. Thus, - * in machines where byte pointers have a different representation from - * word pointers, the resulting machine code could not be the same. - */ - - -/* - * Many machines require storage alignment: longs must start on 4-byte - * boundaries, doubles on 8-byte boundaries, etc. On such machines, malloc() - * always returns pointers that are multiples of the worst-case alignment - * requirement, and we had better do so too. - * There isn't any really portable way to determine the worst-case alignment - * requirement. This module assumes that the alignment requirement is - * multiples of sizeof(ALIGN_TYPE). - * By default, we define ALIGN_TYPE as double. This is necessary on some - * workstations (where doubles really do need 8-byte alignment) and will work - * fine on nearly everything. If your machine has lesser alignment needs, - * you can save a few bytes by making ALIGN_TYPE smaller. - * The only place I know of where this will NOT work is certain Macintosh - * 680x0 compilers that define double as a 10-byte IEEE extended float. - * Doing 10-byte alignment is counterproductive because longwords won't be - * aligned well. Put "#define ALIGN_TYPE long" in jconfig.h if you have - * such a compiler. - */ - -#ifndef ALIGN_TYPE /* so can override from jconfig.h */ -#define ALIGN_TYPE double -#endif - - -/* - * We allocate objects from "pools", where each pool is gotten with a single - * request to jpeg_get_small() or jpeg_get_large(). There is no per-object - * overhead within a pool, except for alignment padding. Each pool has a - * header with a link to the next pool of the same class. - * Small and large pool headers are identical except that the latter's - * link pointer must be FAR on 80x86 machines. - * Notice that the "real" header fields are union'ed with a dummy ALIGN_TYPE - * field. This forces the compiler to make SIZEOF(small_pool_hdr) a multiple - * of the alignment requirement of ALIGN_TYPE. - */ - -typedef union small_pool_struct * small_pool_ptr; - -typedef union small_pool_struct { - struct { - small_pool_ptr next; /* next in list of pools */ - size_t bytes_used; /* how many bytes already used within pool */ - size_t bytes_left; /* bytes still available in this pool */ - } hdr; - ALIGN_TYPE dummy; /* included in union to ensure alignment */ -} small_pool_hdr; - -typedef union large_pool_struct FAR * large_pool_ptr; - -typedef union large_pool_struct { - struct { - large_pool_ptr next; /* next in list of pools */ - size_t bytes_used; /* how many bytes already used within pool */ - size_t bytes_left; /* bytes still available in this pool */ - } hdr; - ALIGN_TYPE dummy; /* included in union to ensure alignment */ -} large_pool_hdr; - - -/* - * Here is the full definition of a memory manager object. - */ - -typedef struct { - struct jpeg_memory_mgr pub; /* public fields */ - - /* Each pool identifier (lifetime class) names a linked list of pools. */ - small_pool_ptr small_list[JPOOL_NUMPOOLS]; - large_pool_ptr large_list[JPOOL_NUMPOOLS]; - - /* Since we only have one lifetime class of virtual arrays, only one - * linked list is necessary (for each datatype). Note that the virtual - * array control blocks being linked together are actually stored somewhere - * in the small-pool list. - */ - jvirt_sarray_ptr virt_sarray_list; - jvirt_barray_ptr virt_barray_list; - - /* This counts total space obtained from jpeg_get_small/large */ - long total_space_allocated; - - /* alloc_sarray and alloc_barray set this value for use by virtual - * array routines. - */ - JDIMENSION last_rowsperchunk; /* from most recent alloc_sarray/barray */ -} my_memory_mgr; - -typedef my_memory_mgr * my_mem_ptr; - - -/* - * The control blocks for virtual arrays. - * Note that these blocks are allocated in the "small" pool area. - * System-dependent info for the associated backing store (if any) is hidden - * inside the backing_store_info struct. - */ - -struct jvirt_sarray_control { - JSAMPARRAY mem_buffer; /* => the in-memory buffer */ - JDIMENSION rows_in_array; /* total virtual array height */ - JDIMENSION samplesperrow; /* width of array (and of memory buffer) */ - JDIMENSION maxaccess; /* max rows accessed by access_virt_sarray */ - JDIMENSION rows_in_mem; /* height of memory buffer */ - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - boolean pre_zero; /* pre-zero mode requested? */ - boolean dirty; /* do current buffer contents need written? */ - boolean b_s_open; /* is backing-store data valid? */ - jvirt_sarray_ptr next; /* link to next virtual sarray control block */ - backing_store_info b_s_info; /* System-dependent control info */ -}; - -struct jvirt_barray_control { - JBLOCKARRAY mem_buffer; /* => the in-memory buffer */ - JDIMENSION rows_in_array; /* total virtual array height */ - JDIMENSION blocksperrow; /* width of array (and of memory buffer) */ - JDIMENSION maxaccess; /* max rows accessed by access_virt_barray */ - JDIMENSION rows_in_mem; /* height of memory buffer */ - JDIMENSION rowsperchunk; /* allocation chunk size in mem_buffer */ - JDIMENSION cur_start_row; /* first logical row # in the buffer */ - JDIMENSION first_undef_row; /* row # of first uninitialized row */ - boolean pre_zero; /* pre-zero mode requested? */ - boolean dirty; /* do current buffer contents need written? */ - boolean b_s_open; /* is backing-store data valid? */ - jvirt_barray_ptr next; /* link to next virtual barray control block */ - backing_store_info b_s_info; /* System-dependent control info */ -}; - - -#ifdef MEM_STATS /* optional extra stuff for statistics */ - -LOCAL(void) -print_mem_stats (j_common_ptr cinfo, int pool_id) -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr shdr_ptr; - large_pool_ptr lhdr_ptr; - - /* Since this is only a debugging stub, we can cheat a little by using - * fprintf directly rather than going through the trace message code. - * This is helpful because message parm array can't handle longs. - */ - fprintf(stderr, "Freeing pool %d, total space = %ld\n", - pool_id, mem->total_space_allocated); - - for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL; - lhdr_ptr = lhdr_ptr->hdr.next) { - fprintf(stderr, " Large chunk used %ld\n", - (long) lhdr_ptr->hdr.bytes_used); - } - - for (shdr_ptr = mem->small_list[pool_id]; shdr_ptr != NULL; - shdr_ptr = shdr_ptr->hdr.next) { - fprintf(stderr, " Small chunk used %ld free %ld\n", - (long) shdr_ptr->hdr.bytes_used, - (long) shdr_ptr->hdr.bytes_left); - } -} - -#endif /* MEM_STATS */ - - -LOCAL(void) -out_of_memory (j_common_ptr cinfo, int which) -/* Report an out-of-memory error and stop execution */ -/* If we compiled MEM_STATS support, report alloc requests before dying */ -{ -#ifdef MEM_STATS - cinfo->err->trace_level = 2; /* force self_destruct to report stats */ -#endif - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, which); -} - - -/* - * Allocation of "small" objects. - * - * For these, we use pooled storage. When a new pool must be created, - * we try to get enough space for the current request plus a "slop" factor, - * where the slop will be the amount of leftover space in the new pool. - * The speed vs. space tradeoff is largely determined by the slop values. - * A different slop value is provided for each pool class (lifetime), - * and we also distinguish the first pool of a class from later ones. - * NOTE: the values given work fairly well on both 16- and 32-bit-int - * machines, but may be too small if longs are 64 bits or more. - */ - -static const size_t first_pool_slop[JPOOL_NUMPOOLS] = -{ - 1600, /* first PERMANENT pool */ - 16000 /* first IMAGE pool */ -}; - -static const size_t extra_pool_slop[JPOOL_NUMPOOLS] = -{ - 0, /* additional PERMANENT pools */ - 5000 /* additional IMAGE pools */ -}; - -#define MIN_SLOP 50 /* greater than 0 to avoid futile looping */ - - -METHODDEF(void *) -alloc_small (j_common_ptr cinfo, int pool_id, size_t sizeofobject) -/* Allocate a "small" object */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr hdr_ptr, prev_hdr_ptr; - char * data_ptr; - size_t odd_bytes, min_request, slop; - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr))) - out_of_memory(cinfo, 1); /* request exceeds malloc's ability */ - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - if (odd_bytes > 0) - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - /* See if space is available in any existing pool */ - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - prev_hdr_ptr = NULL; - hdr_ptr = mem->small_list[pool_id]; - while (hdr_ptr != NULL) { - if (hdr_ptr->hdr.bytes_left >= sizeofobject) - break; /* found pool with enough space */ - prev_hdr_ptr = hdr_ptr; - hdr_ptr = hdr_ptr->hdr.next; - } - - /* Time to make a new pool? */ - if (hdr_ptr == NULL) { - /* min_request is what we need now, slop is what will be leftover */ - min_request = sizeofobject + SIZEOF(small_pool_hdr); - if (prev_hdr_ptr == NULL) /* first pool in class? */ - slop = first_pool_slop[pool_id]; - else - slop = extra_pool_slop[pool_id]; - /* Don't ask for more than MAX_ALLOC_CHUNK */ - if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request)) - slop = (size_t) (MAX_ALLOC_CHUNK-min_request); - /* Try to get space, if fail reduce slop and try again */ - for (;;) { - hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop); - if (hdr_ptr != NULL) - break; - slop /= 2; - if (slop < MIN_SLOP) /* give up when it gets real small */ - out_of_memory(cinfo, 2); /* jpeg_get_small failed */ - } - mem->total_space_allocated += min_request + slop; - /* Success, initialize the new pool header and add to end of list */ - hdr_ptr->hdr.next = NULL; - hdr_ptr->hdr.bytes_used = 0; - hdr_ptr->hdr.bytes_left = sizeofobject + slop; - if (prev_hdr_ptr == NULL) /* first pool in class? */ - mem->small_list[pool_id] = hdr_ptr; - else - prev_hdr_ptr->hdr.next = hdr_ptr; - } - - /* OK, allocate the object from the current pool */ - data_ptr = (char *) (hdr_ptr + 1); /* point to first data byte in pool */ - data_ptr += hdr_ptr->hdr.bytes_used; /* point to place for object */ - hdr_ptr->hdr.bytes_used += sizeofobject; - hdr_ptr->hdr.bytes_left -= sizeofobject; - - return (void *) data_ptr; -} - - -/* - * Allocation of "large" objects. - * - * The external semantics of these are the same as "small" objects, - * except that FAR pointers are used on 80x86. However the pool - * management heuristics are quite different. We assume that each - * request is large enough that it may as well be passed directly to - * jpeg_get_large; the pool management just links everything together - * so that we can free it all on demand. - * Note: the major use of "large" objects is in JSAMPARRAY and JBLOCKARRAY - * structures. The routines that create these structures (see below) - * deliberately bunch rows together to ensure a large request size. - */ - -METHODDEF(void FAR *) -alloc_large (j_common_ptr cinfo, int pool_id, size_t sizeofobject) -/* Allocate a "large" object */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - large_pool_ptr hdr_ptr; - size_t odd_bytes; - - /* Check for unsatisfiable request (do now to ensure no overflow below) */ - if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr))) - out_of_memory(cinfo, 3); /* request exceeds malloc's ability */ - - /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */ - odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE); - if (odd_bytes > 0) - sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes; - - /* Always make a new pool */ - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - hdr_ptr = (large_pool_ptr) jpeg_get_large(cinfo, sizeofobject + - SIZEOF(large_pool_hdr)); - if (hdr_ptr == NULL) - out_of_memory(cinfo, 4); /* jpeg_get_large failed */ - mem->total_space_allocated += sizeofobject + SIZEOF(large_pool_hdr); - - /* Success, initialize the new pool header and add to list */ - hdr_ptr->hdr.next = mem->large_list[pool_id]; - /* We maintain space counts in each pool header for statistical purposes, - * even though they are not needed for allocation. - */ - hdr_ptr->hdr.bytes_used = sizeofobject; - hdr_ptr->hdr.bytes_left = 0; - mem->large_list[pool_id] = hdr_ptr; - - return (void FAR *) (hdr_ptr + 1); /* point to first data byte in pool */ -} - - -/* - * Creation of 2-D sample arrays. - * The pointers are in near heap, the samples themselves in FAR heap. - * - * To minimize allocation overhead and to allow I/O of large contiguous - * blocks, we allocate the sample rows in groups of as many rows as possible - * without exceeding MAX_ALLOC_CHUNK total bytes per allocation request. - * NB: the virtual array control routines, later in this file, know about - * this chunking of rows. The rowsperchunk value is left in the mem manager - * object so that it can be saved away if this sarray is the workspace for - * a virtual array. - */ - -METHODDEF(JSAMPARRAY) -alloc_sarray (j_common_ptr cinfo, int pool_id, - JDIMENSION samplesperrow, JDIMENSION numrows) -/* Allocate a 2-D sample array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - JSAMPARRAY result; - JSAMPROW workspace; - JDIMENSION rowsperchunk, currow, i; - long ltemp; - - /* Calculate max # of rows allowed in one allocation chunk */ - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - ((long) samplesperrow * SIZEOF(JSAMPLE)); - if (ltemp <= 0) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - if (ltemp < (long) numrows) - rowsperchunk = (JDIMENSION) ltemp; - else - rowsperchunk = numrows; - mem->last_rowsperchunk = rowsperchunk; - - /* Get space for row pointers (small object) */ - result = (JSAMPARRAY) alloc_small(cinfo, pool_id, - (size_t) (numrows * SIZEOF(JSAMPROW))); - - /* Get the rows themselves (large objects) */ - currow = 0; - while (currow < numrows) { - rowsperchunk = MIN(rowsperchunk, numrows - currow); - workspace = (JSAMPROW) alloc_large(cinfo, pool_id, - (size_t) ((size_t) rowsperchunk * (size_t) samplesperrow - * SIZEOF(JSAMPLE))); - for (i = rowsperchunk; i > 0; i--) { - result[currow++] = workspace; - workspace += samplesperrow; - } - } - - return result; -} - - -/* - * Creation of 2-D coefficient-block arrays. - * This is essentially the same as the code for sample arrays, above. - */ - -METHODDEF(JBLOCKARRAY) -alloc_barray (j_common_ptr cinfo, int pool_id, - JDIMENSION blocksperrow, JDIMENSION numrows) -/* Allocate a 2-D coefficient-block array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - JBLOCKARRAY result; - JBLOCKROW workspace; - JDIMENSION rowsperchunk, currow, i; - long ltemp; - - /* Calculate max # of rows allowed in one allocation chunk */ - ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) / - ((long) blocksperrow * SIZEOF(JBLOCK)); - if (ltemp <= 0) - ERREXIT(cinfo, JERR_WIDTH_OVERFLOW); - if (ltemp < (long) numrows) - rowsperchunk = (JDIMENSION) ltemp; - else - rowsperchunk = numrows; - mem->last_rowsperchunk = rowsperchunk; - - /* Get space for row pointers (small object) */ - result = (JBLOCKARRAY) alloc_small(cinfo, pool_id, - (size_t) (numrows * SIZEOF(JBLOCKROW))); - - /* Get the rows themselves (large objects) */ - currow = 0; - while (currow < numrows) { - rowsperchunk = MIN(rowsperchunk, numrows - currow); - workspace = (JBLOCKROW) alloc_large(cinfo, pool_id, - (size_t) ((size_t) rowsperchunk * (size_t) blocksperrow - * SIZEOF(JBLOCK))); - for (i = rowsperchunk; i > 0; i--) { - result[currow++] = workspace; - workspace += blocksperrow; - } - } - - return result; -} - - -/* - * About virtual array management: - * - * The above "normal" array routines are only used to allocate strip buffers - * (as wide as the image, but just a few rows high). Full-image-sized buffers - * are handled as "virtual" arrays. The array is still accessed a strip at a - * time, but the memory manager must save the whole array for repeated - * accesses. The intended implementation is that there is a strip buffer in - * memory (as high as is possible given the desired memory limit), plus a - * backing file that holds the rest of the array. - * - * The request_virt_array routines are told the total size of the image and - * the maximum number of rows that will be accessed at once. The in-memory - * buffer must be at least as large as the maxaccess value. - * - * The request routines create control blocks but not the in-memory buffers. - * That is postponed until realize_virt_arrays is called. At that time the - * total amount of space needed is known (approximately, anyway), so free - * memory can be divided up fairly. - * - * The access_virt_array routines are responsible for making a specific strip - * area accessible (after reading or writing the backing file, if necessary). - * Note that the access routines are told whether the caller intends to modify - * the accessed strip; during a read-only pass this saves having to rewrite - * data to disk. The access routines are also responsible for pre-zeroing - * any newly accessed rows, if pre-zeroing was requested. - * - * In current usage, the access requests are usually for nonoverlapping - * strips; that is, successive access start_row numbers differ by exactly - * num_rows = maxaccess. This means we can get good performance with simple - * buffer dump/reload logic, by making the in-memory buffer be a multiple - * of the access height; then there will never be accesses across bufferload - * boundaries. The code will still work with overlapping access requests, - * but it doesn't handle bufferload overlaps very efficiently. - */ - - -METHODDEF(jvirt_sarray_ptr) -request_virt_sarray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - JDIMENSION samplesperrow, JDIMENSION numrows, - JDIMENSION maxaccess) -/* Request a virtual 2-D sample array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - jvirt_sarray_ptr result; - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - if (pool_id != JPOOL_IMAGE) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - /* get control block */ - result = (jvirt_sarray_ptr) alloc_small(cinfo, pool_id, - SIZEOF(struct jvirt_sarray_control)); - - result->mem_buffer = NULL; /* marks array not yet realized */ - result->rows_in_array = numrows; - result->samplesperrow = samplesperrow; - result->maxaccess = maxaccess; - result->pre_zero = pre_zero; - result->b_s_open = FALSE; /* no associated backing-store object */ - result->next = mem->virt_sarray_list; /* add to list of virtual arrays */ - mem->virt_sarray_list = result; - - return result; -} - - -METHODDEF(jvirt_barray_ptr) -request_virt_barray (j_common_ptr cinfo, int pool_id, boolean pre_zero, - JDIMENSION blocksperrow, JDIMENSION numrows, - JDIMENSION maxaccess) -/* Request a virtual 2-D coefficient-block array */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - jvirt_barray_ptr result; - - /* Only IMAGE-lifetime virtual arrays are currently supported */ - if (pool_id != JPOOL_IMAGE) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - - /* get control block */ - result = (jvirt_barray_ptr) alloc_small(cinfo, pool_id, - SIZEOF(struct jvirt_barray_control)); - - result->mem_buffer = NULL; /* marks array not yet realized */ - result->rows_in_array = numrows; - result->blocksperrow = blocksperrow; - result->maxaccess = maxaccess; - result->pre_zero = pre_zero; - result->b_s_open = FALSE; /* no associated backing-store object */ - result->next = mem->virt_barray_list; /* add to list of virtual arrays */ - mem->virt_barray_list = result; - - return result; -} - - -METHODDEF(void) -realize_virt_arrays (j_common_ptr cinfo) -/* Allocate the in-memory buffers for any unrealized virtual arrays */ -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - long space_per_minheight, maximum_space, avail_mem; - long minheights, max_minheights; - jvirt_sarray_ptr sptr; - jvirt_barray_ptr bptr; - - /* Compute the minimum space needed (maxaccess rows in each buffer) - * and the maximum space needed (full image height in each buffer). - * These may be of use to the system-dependent jpeg_mem_available routine. - */ - space_per_minheight = 0; - maximum_space = 0; - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - space_per_minheight += (long) sptr->maxaccess * - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - maximum_space += (long) sptr->rows_in_array * - (long) sptr->samplesperrow * SIZEOF(JSAMPLE); - } - } - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - space_per_minheight += (long) bptr->maxaccess * - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - maximum_space += (long) bptr->rows_in_array * - (long) bptr->blocksperrow * SIZEOF(JBLOCK); - } - } - - if (space_per_minheight <= 0) - return; /* no unrealized arrays, no work */ - - /* Determine amount of memory to actually use; this is system-dependent. */ - avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space, - mem->total_space_allocated); - - /* If the maximum space needed is available, make all the buffers full - * height; otherwise parcel it out with the same number of minheights - * in each buffer. - */ - if (avail_mem >= maximum_space) - max_minheights = 1000000000L; - else { - max_minheights = avail_mem / space_per_minheight; - /* If there doesn't seem to be enough space, try to get the minimum - * anyway. This allows a "stub" implementation of jpeg_mem_available(). - */ - if (max_minheights <= 0) - max_minheights = 1; - } - - /* Allocate the in-memory buffers and initialize backing store as needed. */ - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->mem_buffer == NULL) { /* if not realized yet */ - minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L; - if (minheights <= max_minheights) { - /* This buffer fits in memory */ - sptr->rows_in_mem = sptr->rows_in_array; - } else { - /* It doesn't fit in memory, create backing store. */ - sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess); - jpeg_open_backing_store(cinfo, & sptr->b_s_info, - (long) sptr->rows_in_array * - (long) sptr->samplesperrow * - (long) SIZEOF(JSAMPLE)); - sptr->b_s_open = TRUE; - } - sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE, - sptr->samplesperrow, sptr->rows_in_mem); - sptr->rowsperchunk = mem->last_rowsperchunk; - sptr->cur_start_row = 0; - sptr->first_undef_row = 0; - sptr->dirty = FALSE; - } - } - - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->mem_buffer == NULL) { /* if not realized yet */ - minheights = ((long) bptr->rows_in_array - 1L) / bptr->maxaccess + 1L; - if (minheights <= max_minheights) { - /* This buffer fits in memory */ - bptr->rows_in_mem = bptr->rows_in_array; - } else { - /* It doesn't fit in memory, create backing store. */ - bptr->rows_in_mem = (JDIMENSION) (max_minheights * bptr->maxaccess); - jpeg_open_backing_store(cinfo, & bptr->b_s_info, - (long) bptr->rows_in_array * - (long) bptr->blocksperrow * - (long) SIZEOF(JBLOCK)); - bptr->b_s_open = TRUE; - } - bptr->mem_buffer = alloc_barray(cinfo, JPOOL_IMAGE, - bptr->blocksperrow, bptr->rows_in_mem); - bptr->rowsperchunk = mem->last_rowsperchunk; - bptr->cur_start_row = 0; - bptr->first_undef_row = 0; - bptr->dirty = FALSE; - } - } -} - - -LOCAL(void) -do_sarray_io (j_common_ptr cinfo, jvirt_sarray_ptr ptr, boolean writing) -/* Do backing store read or write of a virtual sample array */ -{ - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE); - file_offset = ptr->cur_start_row * bytesperrow; - /* Loop to read or write each allocation chunk in mem_buffer */ - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - /* One chunk, but check for short chunk at end of buffer */ - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - /* Transfer no more than is currently defined */ - thisrow = (long) ptr->cur_start_row + i; - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - /* Transfer no more than fits in file */ - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - if (rows <= 0) /* this chunk might be past end of file! */ - break; - byte_count = rows * bytesperrow; - if (writing) - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - else - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - file_offset += byte_count; - } -} - - -LOCAL(void) -do_barray_io (j_common_ptr cinfo, jvirt_barray_ptr ptr, boolean writing) -/* Do backing store read or write of a virtual coefficient-block array */ -{ - long bytesperrow, file_offset, byte_count, rows, thisrow, i; - - bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK); - file_offset = ptr->cur_start_row * bytesperrow; - /* Loop to read or write each allocation chunk in mem_buffer */ - for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) { - /* One chunk, but check for short chunk at end of buffer */ - rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i); - /* Transfer no more than is currently defined */ - thisrow = (long) ptr->cur_start_row + i; - rows = MIN(rows, (long) ptr->first_undef_row - thisrow); - /* Transfer no more than fits in file */ - rows = MIN(rows, (long) ptr->rows_in_array - thisrow); - if (rows <= 0) /* this chunk might be past end of file! */ - break; - byte_count = rows * bytesperrow; - if (writing) - (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - else - (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info, - (void FAR *) ptr->mem_buffer[i], - file_offset, byte_count); - file_offset += byte_count; - } -} - - -METHODDEF(JSAMPARRAY) -access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr, - JDIMENSION start_row, JDIMENSION num_rows, - boolean writable) -/* Access the part of a virtual sample array starting at start_row */ -/* and extending for num_rows rows. writable is true if */ -/* caller intends to modify the accessed area. */ -{ - JDIMENSION end_row = start_row + num_rows; - JDIMENSION undef_row; - - /* debugging check */ - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - ptr->mem_buffer == NULL) - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - /* Make the desired part of the virtual array accessible */ - if (start_row < ptr->cur_start_row || - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - if (! ptr->b_s_open) - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - /* Flush old buffer contents if necessary */ - if (ptr->dirty) { - do_sarray_io(cinfo, ptr, TRUE); - ptr->dirty = FALSE; - } - /* Decide what part of virtual array to access. - * Algorithm: if target address > current window, assume forward scan, - * load starting at target address. If target address < current window, - * assume backward scan, load so that target area is top of window. - * Note that when switching from forward write to forward read, will have - * start_row = 0, so the limiting case applies and we load from 0 anyway. - */ - if (start_row > ptr->cur_start_row) { - ptr->cur_start_row = start_row; - } else { - /* use long arithmetic here to avoid overflow & unsigned problems */ - long ltemp; - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - if (ltemp < 0) - ltemp = 0; /* don't fall off front end of file */ - ptr->cur_start_row = (JDIMENSION) ltemp; - } - /* Read in the selected part of the array. - * During the initial write pass, we will do no actual read - * because the selected part is all undefined. - */ - do_sarray_io(cinfo, ptr, FALSE); - } - /* Ensure the accessed part of the array is defined; prezero if needed. - * To improve locality of access, we only prezero the part of the array - * that the caller is about to access, not the entire in-memory array. - */ - if (ptr->first_undef_row < end_row) { - if (ptr->first_undef_row < start_row) { - if (writable) /* writer skipped over a section of array */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - undef_row = start_row; /* but reader is allowed to read ahead */ - } else { - undef_row = ptr->first_undef_row; - } - if (writable) - ptr->first_undef_row = end_row; - if (ptr->pre_zero) { - size_t bytesperrow = (size_t) ptr->samplesperrow * SIZEOF(JSAMPLE); - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - end_row -= ptr->cur_start_row; - while (undef_row < end_row) { - FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - undef_row++; - } - } else { - if (! writable) /* reader looking at undefined data */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - } - } - /* Flag the buffer dirty if caller will write in it */ - if (writable) - ptr->dirty = TRUE; - /* Return address of proper part of the buffer */ - return ptr->mem_buffer + (start_row - ptr->cur_start_row); -} - - -METHODDEF(JBLOCKARRAY) -access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr, - JDIMENSION start_row, JDIMENSION num_rows, - boolean writable) -/* Access the part of a virtual block array starting at start_row */ -/* and extending for num_rows rows. writable is true if */ -/* caller intends to modify the accessed area. */ -{ - JDIMENSION end_row = start_row + num_rows; - JDIMENSION undef_row; - - /* debugging check */ - if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess || - ptr->mem_buffer == NULL) - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - - /* Make the desired part of the virtual array accessible */ - if (start_row < ptr->cur_start_row || - end_row > ptr->cur_start_row+ptr->rows_in_mem) { - if (! ptr->b_s_open) - ERREXIT(cinfo, JERR_VIRTUAL_BUG); - /* Flush old buffer contents if necessary */ - if (ptr->dirty) { - do_barray_io(cinfo, ptr, TRUE); - ptr->dirty = FALSE; - } - /* Decide what part of virtual array to access. - * Algorithm: if target address > current window, assume forward scan, - * load starting at target address. If target address < current window, - * assume backward scan, load so that target area is top of window. - * Note that when switching from forward write to forward read, will have - * start_row = 0, so the limiting case applies and we load from 0 anyway. - */ - if (start_row > ptr->cur_start_row) { - ptr->cur_start_row = start_row; - } else { - /* use long arithmetic here to avoid overflow & unsigned problems */ - long ltemp; - - ltemp = (long) end_row - (long) ptr->rows_in_mem; - if (ltemp < 0) - ltemp = 0; /* don't fall off front end of file */ - ptr->cur_start_row = (JDIMENSION) ltemp; - } - /* Read in the selected part of the array. - * During the initial write pass, we will do no actual read - * because the selected part is all undefined. - */ - do_barray_io(cinfo, ptr, FALSE); - } - /* Ensure the accessed part of the array is defined; prezero if needed. - * To improve locality of access, we only prezero the part of the array - * that the caller is about to access, not the entire in-memory array. - */ - if (ptr->first_undef_row < end_row) { - if (ptr->first_undef_row < start_row) { - if (writable) /* writer skipped over a section of array */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - undef_row = start_row; /* but reader is allowed to read ahead */ - } else { - undef_row = ptr->first_undef_row; - } - if (writable) - ptr->first_undef_row = end_row; - if (ptr->pre_zero) { - size_t bytesperrow = (size_t) ptr->blocksperrow * SIZEOF(JBLOCK); - undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */ - end_row -= ptr->cur_start_row; - while (undef_row < end_row) { - FMEMZERO((void FAR *) ptr->mem_buffer[undef_row], bytesperrow); - undef_row++; - } - } else { - if (! writable) /* reader looking at undefined data */ - ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS); - } - } - /* Flag the buffer dirty if caller will write in it */ - if (writable) - ptr->dirty = TRUE; - /* Return address of proper part of the buffer */ - return ptr->mem_buffer + (start_row - ptr->cur_start_row); -} - - -/* - * Release all objects belonging to a specified pool. - */ - -METHODDEF(void) -free_pool (j_common_ptr cinfo, int pool_id) -{ - my_mem_ptr mem = (my_mem_ptr) cinfo->mem; - small_pool_ptr shdr_ptr; - large_pool_ptr lhdr_ptr; - size_t space_freed; - - if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS) - ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id); /* safety check */ - -#ifdef MEM_STATS - if (cinfo->err->trace_level > 1) - print_mem_stats(cinfo, pool_id); /* print pool's memory usage statistics */ -#endif - - /* If freeing IMAGE pool, close any virtual arrays first */ - if (pool_id == JPOOL_IMAGE) { - jvirt_sarray_ptr sptr; - jvirt_barray_ptr bptr; - - for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) { - if (sptr->b_s_open) { /* there may be no backing store */ - sptr->b_s_open = FALSE; /* prevent recursive close if error */ - (*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info); - } - } - mem->virt_sarray_list = NULL; - for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) { - if (bptr->b_s_open) { /* there may be no backing store */ - bptr->b_s_open = FALSE; /* prevent recursive close if error */ - (*bptr->b_s_info.close_backing_store) (cinfo, & bptr->b_s_info); - } - } - mem->virt_barray_list = NULL; - } - - /* Release large objects */ - lhdr_ptr = mem->large_list[pool_id]; - mem->large_list[pool_id] = NULL; - - while (lhdr_ptr != NULL) { - large_pool_ptr next_lhdr_ptr = lhdr_ptr->hdr.next; - space_freed = lhdr_ptr->hdr.bytes_used + - lhdr_ptr->hdr.bytes_left + - SIZEOF(large_pool_hdr); - jpeg_free_large(cinfo, (void FAR *) lhdr_ptr, space_freed); - mem->total_space_allocated -= space_freed; - lhdr_ptr = next_lhdr_ptr; - } - - /* Release small objects */ - shdr_ptr = mem->small_list[pool_id]; - mem->small_list[pool_id] = NULL; - - while (shdr_ptr != NULL) { - small_pool_ptr next_shdr_ptr = shdr_ptr->hdr.next; - space_freed = shdr_ptr->hdr.bytes_used + - shdr_ptr->hdr.bytes_left + - SIZEOF(small_pool_hdr); - jpeg_free_small(cinfo, (void *) shdr_ptr, space_freed); - mem->total_space_allocated -= space_freed; - shdr_ptr = next_shdr_ptr; - } -} - - -/* - * Close up shop entirely. - * Note that this cannot be called unless cinfo->mem is non-NULL. - */ - -METHODDEF(void) -self_destruct (j_common_ptr cinfo) -{ - int pool; - - /* Close all backing store, release all memory. - * Releasing pools in reverse order might help avoid fragmentation - * with some (brain-damaged) malloc libraries. - */ - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - free_pool(cinfo, pool); - } - - /* Release the memory manager control block too. */ - jpeg_free_small(cinfo, (void *) cinfo->mem, SIZEOF(my_memory_mgr)); - cinfo->mem = NULL; /* ensures I will be called only once */ - - jpeg_mem_term(cinfo); /* system-dependent cleanup */ -} - - -/* - * Memory manager initialization. - * When this is called, only the error manager pointer is valid in cinfo! - */ - -GLOBAL(void) -jinit_memory_mgr (j_common_ptr cinfo) -{ - my_mem_ptr mem; - long max_to_use; - int pool; - size_t test_mac; - - cinfo->mem = NULL; /* for safety if init fails */ - - /* Check for configuration errors. - * SIZEOF(ALIGN_TYPE) should be a power of 2; otherwise, it probably - * doesn't reflect any real hardware alignment requirement. - * The test is a little tricky: for X>0, X and X-1 have no one-bits - * in common if and only if X is a power of 2, ie has only one one-bit. - * Some compilers may give an "unreachable code" warning here; ignore it. - */ - if ((SIZEOF(ALIGN_TYPE) & (SIZEOF(ALIGN_TYPE)-1)) != 0) - ERREXIT(cinfo, JERR_BAD_ALIGN_TYPE); - /* MAX_ALLOC_CHUNK must be representable as type size_t, and must be - * a multiple of SIZEOF(ALIGN_TYPE). - * Again, an "unreachable code" warning may be ignored here. - * But a "constant too large" warning means you need to fix MAX_ALLOC_CHUNK. - */ - test_mac = (size_t) MAX_ALLOC_CHUNK; - if ((long) test_mac != MAX_ALLOC_CHUNK || - (MAX_ALLOC_CHUNK % SIZEOF(ALIGN_TYPE)) != 0) - ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK); - - max_to_use = jpeg_mem_init(cinfo); /* system-dependent initialization */ - - /* Attempt to allocate memory manager's control block */ - mem = (my_mem_ptr) jpeg_get_small(cinfo, SIZEOF(my_memory_mgr)); - - if (mem == NULL) { - jpeg_mem_term(cinfo); /* system-dependent cleanup */ - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 0); - } - - /* OK, fill in the method pointers */ - mem->pub.alloc_small = alloc_small; - mem->pub.alloc_large = alloc_large; - mem->pub.alloc_sarray = alloc_sarray; - mem->pub.alloc_barray = alloc_barray; - mem->pub.request_virt_sarray = request_virt_sarray; - mem->pub.request_virt_barray = request_virt_barray; - mem->pub.realize_virt_arrays = realize_virt_arrays; - mem->pub.access_virt_sarray = access_virt_sarray; - mem->pub.access_virt_barray = access_virt_barray; - mem->pub.free_pool = free_pool; - mem->pub.self_destruct = self_destruct; - - /* Make MAX_ALLOC_CHUNK accessible to other modules */ - mem->pub.max_alloc_chunk = MAX_ALLOC_CHUNK; - - /* Initialize working state */ - mem->pub.max_memory_to_use = max_to_use; - - for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) { - mem->small_list[pool] = NULL; - mem->large_list[pool] = NULL; - } - mem->virt_sarray_list = NULL; - mem->virt_barray_list = NULL; - - mem->total_space_allocated = SIZEOF(my_memory_mgr); - - /* Declare ourselves open for business */ - cinfo->mem = & mem->pub; - - /* Check for an environment variable JPEGMEM; if found, override the - * default max_memory setting from jpeg_mem_init. Note that the - * surrounding application may again override this value. - * If your system doesn't support getenv(), define NO_GETENV to disable - * this feature. - */ -#ifndef NO_GETENV - { char * memenv; - - if ((memenv = getenv("JPEGMEM")) != NULL) { - char ch = 'x'; - - if (sscanf(memenv, "%ld%c", &max_to_use, &ch) > 0) { - if (ch == 'm' || ch == 'M') - max_to_use *= 1000L; - mem->pub.max_memory_to_use = max_to_use * 1000L; - } - } - } -#endif - -} diff --git a/jpeg/jmemname.c b/jpeg/jmemname.c deleted file mode 100755 index ed96dee..0000000 --- a/jpeg/jmemname.c +++ /dev/null @@ -1,276 +0,0 @@ -/* - * jmemname.c - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a generic implementation of the system-dependent - * portion of the JPEG memory manager. This implementation assumes that - * you must explicitly construct a name for each temp file. - * Also, the problem of determining the amount of memory available - * is shoved onto the user. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - -#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ -#define SEEK_SET 0 /* if not, assume 0 is correct */ -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define RW_BINARY "w+" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define RW_BINARY "w+b", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define RW_BINARY "w+b" -#endif -#endif - - -/* - * Selection of a file name for a temporary file. - * This is system-dependent! - * - * The code as given is suitable for most Unix systems, and it is easily - * modified for most non-Unix systems. Some notes: - * 1. The temp file is created in the directory named by TEMP_DIRECTORY. - * The default value is /usr/tmp, which is the conventional place for - * creating large temp files on Unix. On other systems you'll probably - * want to change the file location. You can do this by editing the - * #define, or (preferred) by defining TEMP_DIRECTORY in jconfig.h. - * - * 2. If you need to change the file name as well as its location, - * you can override the TEMP_FILE_NAME macro. (Note that this is - * actually a printf format string; it must contain %s and %d.) - * Few people should need to do this. - * - * 3. mktemp() is used to ensure that multiple processes running - * simultaneously won't select the same file names. If your system - * doesn't have mktemp(), define NO_MKTEMP to do it the hard way. - * (If you don't have , also define NO_ERRNO_H.) - * - * 4. You probably want to define NEED_SIGNAL_CATCHER so that cjpeg.c/djpeg.c - * will cause the temp files to be removed if you stop the program early. - */ - -#ifndef TEMP_DIRECTORY /* can override from jconfig.h or Makefile */ -#define TEMP_DIRECTORY "/usr/tmp/" /* recommended setting for Unix */ -#endif - -static int next_file_num; /* to distinguish among several temp files */ - -#ifdef NO_MKTEMP - -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "%sJPG%03d.TMP" -#endif - -#ifndef NO_ERRNO_H -#include /* to define ENOENT */ -#endif - -/* ANSI C specifies that errno is a macro, but on older systems it's more - * likely to be a plain int variable. And not all versions of errno.h - * bother to declare it, so we have to in order to be most portable. Thus: - */ -#ifndef errno -extern int errno; -#endif - - -LOCAL(void) -select_file_name (char * fname) -{ - FILE * tfile; - - /* Keep generating file names till we find one that's not in use */ - for (;;) { - next_file_num++; /* advance counter */ - sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); - if ((tfile = fopen(fname, READ_BINARY)) == NULL) { - /* fopen could have failed for a reason other than the file not - * being there; for example, file there but unreadable. - * If isn't available, then we cannot test the cause. - */ -#ifdef ENOENT - if (errno != ENOENT) - continue; -#endif - break; - } - fclose(tfile); /* oops, it's there; close tfile & try again */ - } -} - -#else /* ! NO_MKTEMP */ - -/* Note that mktemp() requires the initial filename to end in six X's */ -#ifndef TEMP_FILE_NAME /* can override from jconfig.h or Makefile */ -#define TEMP_FILE_NAME "%sJPG%dXXXXXX" -#endif - -LOCAL(void) -select_file_name (char * fname) -{ - next_file_num++; /* advance counter */ - sprintf(fname, TEMP_FILE_NAME, TEMP_DIRECTORY, next_file_num); - mktemp(fname); /* make sure file name is unique */ - /* mktemp replaces the trailing XXXXXX with a unique string of characters */ -} - -#endif /* NO_MKTEMP */ - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 1000000L /* default: one megabyte */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFREAD(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFWRITE(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - fclose(info->temp_file); /* close the file */ - unlink(info->temp_name); /* delete the file */ -/* If your system doesn't have unlink(), use remove() instead. - * remove() is the ANSI-standard name for this function, but if - * your system was ANSI you'd be using jmemansi.c, right? - */ - TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name); -} - - -/* - * Initial opening of a backing-store object. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - select_file_name(info->temp_name); - if ((info->temp_file = fopen(info->temp_name, RW_BINARY)) == NULL) - ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name); - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; - TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - next_file_num = 0; /* initialize temp file name generator */ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpeg/jmemnobs.c b/jpeg/jmemnobs.c deleted file mode 100755 index eb8c337..0000000 --- a/jpeg/jmemnobs.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * jmemnobs.c - * - * Copyright (C) 1992-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides a really simple implementation of the system- - * dependent portion of the JPEG memory manager. This implementation - * assumes that no backing-store files are needed: all required space - * can be obtained from malloc(). - * This is very portable in the sense that it'll compile on almost anything, - * but you'd better have lots of main memory (or virtual memory) if you want - * to process big images. - * Note that the max_memory_to_use option is ignored by this implementation. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - - -/* - * Memory allocation and freeing are controlled by the regular library - * routines malloc() and free(). - */ - -GLOBAL(void *) -jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "Large" objects are treated the same as "small" ones. - * NB: although we include FAR keywords in the routine declarations, - * this file won't actually work in 80x86 small/medium model; at least, - * you probably won't be able to process useful-size images in only 64KB. - */ - -GLOBAL(void FAR *) -jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) -{ - return (void FAR *) malloc(sizeofobject); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * Here we always say, "we got all you want bud!" - */ - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return max_bytes_needed; -} - - -/* - * Backing store (temporary file) management. - * Since jpeg_mem_available always promised the moon, - * this should never be called and we can just error out. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - ERREXIT(cinfo, JERR_NO_BACKING_STORE); -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. Here, there isn't any. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - return 0; /* just set max_memory_to_use to 0 */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} diff --git a/jpeg/jmemsys.h b/jpeg/jmemsys.h deleted file mode 100755 index 6c3c6d3..0000000 --- a/jpeg/jmemsys.h +++ /dev/null @@ -1,198 +0,0 @@ -/* - * jmemsys.h - * - * Copyright (C) 1992-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This include file defines the interface between the system-independent - * and system-dependent portions of the JPEG memory manager. No other - * modules need include it. (The system-independent portion is jmemmgr.c; - * there are several different versions of the system-dependent portion.) - * - * This file works as-is for the system-dependent memory managers supplied - * in the IJG distribution. You may need to modify it if you write a - * custom memory manager. If system-dependent changes are needed in - * this file, the best method is to #ifdef them based on a configuration - * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR - * and USE_MAC_MEMMGR. - */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_get_small jGetSmall -#define jpeg_free_small jFreeSmall -#define jpeg_get_large jGetLarge -#define jpeg_free_large jFreeLarge -#define jpeg_mem_available jMemAvail -#define jpeg_open_backing_store jOpenBackStore -#define jpeg_mem_init jMemInit -#define jpeg_mem_term jMemTerm -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* - * These two functions are used to allocate and release small chunks of - * memory. (Typically the total amount requested through jpeg_get_small is - * no more than 20K or so; this will be requested in chunks of a few K each.) - * Behavior should be the same as for the standard library functions malloc - * and free; in particular, jpeg_get_small must return NULL on failure. - * On most systems, these ARE malloc and free. jpeg_free_small is passed the - * size of the object being freed, just in case it's needed. - * On an 80x86 machine using small-data memory model, these manage near heap. - */ - -EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject)); -EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object, - size_t sizeofobject)); - -/* - * These two functions are used to allocate and release large chunks of - * memory (up to the total free space designated by jpeg_mem_available). - * The interface is the same as above, except that on an 80x86 machine, - * far pointers are used. On most other machines these are identical to - * the jpeg_get/free_small routines; but we keep them separate anyway, - * in case a different allocation strategy is desirable for large chunks. - */ - -EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo, - size_t sizeofobject)); -EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object, - size_t sizeofobject)); - -/* - * The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may - * be requested in a single call to jpeg_get_large (and jpeg_get_small for that - * matter, but that case should never come into play). This macro is needed - * to model the 64Kb-segment-size limit of far addressing on 80x86 machines. - * On those machines, we expect that jconfig.h will provide a proper value. - * On machines with 32-bit flat address spaces, any large constant may be used. - * - * NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type - * size_t and will be a multiple of sizeof(align_type). - */ - -#ifndef MAX_ALLOC_CHUNK /* may be overridden in jconfig.h */ -#define MAX_ALLOC_CHUNK 1000000000L -#endif - -/* - * This routine computes the total space still available for allocation by - * jpeg_get_large. If more space than this is needed, backing store will be - * used. NOTE: any memory already allocated must not be counted. - * - * There is a minimum space requirement, corresponding to the minimum - * feasible buffer sizes; jmemmgr.c will request that much space even if - * jpeg_mem_available returns zero. The maximum space needed, enough to hold - * all working storage in memory, is also passed in case it is useful. - * Finally, the total space already allocated is passed. If no better - * method is available, cinfo->mem->max_memory_to_use - already_allocated - * is often a suitable calculation. - * - * It is OK for jpeg_mem_available to underestimate the space available - * (that'll just lead to more backing-store access than is really necessary). - * However, an overestimate will lead to failure. Hence it's wise to subtract - * a slop factor from the true available space. 5% should be enough. - * - * On machines with lots of virtual memory, any large constant may be returned. - * Conversely, zero may be returned to always use the minimum amount of memory. - */ - -EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo, - long min_bytes_needed, - long max_bytes_needed, - long already_allocated)); - - -/* - * This structure holds whatever state is needed to access a single - * backing-store object. The read/write/close method pointers are called - * by jmemmgr.c to manipulate the backing-store object; all other fields - * are private to the system-dependent backing store routines. - */ - -#define TEMP_NAME_LENGTH 64 /* max length of a temporary file's name */ - - -#ifdef USE_MSDOS_MEMMGR /* DOS-specific junk */ - -typedef unsigned short XMSH; /* type of extended-memory handles */ -typedef unsigned short EMSH; /* type of expanded-memory handles */ - -typedef union { - short file_handle; /* DOS file handle if it's a temp file */ - XMSH xms_handle; /* handle if it's a chunk of XMS */ - EMSH ems_handle; /* handle if it's a chunk of EMS */ -} handle_union; - -#endif /* USE_MSDOS_MEMMGR */ - -#ifdef USE_MAC_MEMMGR /* Mac-specific junk */ -#include -#endif /* USE_MAC_MEMMGR */ - - -typedef struct backing_store_struct * backing_store_ptr; - -typedef struct backing_store_struct { - /* Methods for reading/writing/closing this backing-store object */ - JMETHOD(void, read_backing_store, (j_common_ptr cinfo, - backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count)); - JMETHOD(void, write_backing_store, (j_common_ptr cinfo, - backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count)); - JMETHOD(void, close_backing_store, (j_common_ptr cinfo, - backing_store_ptr info)); - - /* Private fields for system-dependent backing-store management */ -#ifdef USE_MSDOS_MEMMGR - /* For the MS-DOS manager (jmemdos.c), we need: */ - handle_union handle; /* reference to backing-store storage object */ - char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ -#else -#ifdef USE_MAC_MEMMGR - /* For the Mac manager (jmemmac.c), we need: */ - short temp_file; /* file reference number to temp file */ - FSSpec tempSpec; /* the FSSpec for the temp file */ - char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */ -#else - /* For a typical implementation with temp files, we need: */ - FILE * temp_file; /* stdio reference to temp file */ - char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */ -#endif -#endif -} backing_store_info; - - -/* - * Initial opening of a backing-store object. This must fill in the - * read/write/close pointers in the object. The read/write routines - * may take an error exit if the specified maximum file size is exceeded. - * (If jpeg_mem_available always returns a large value, this routine can - * just take an error exit.) - */ - -EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo, - backing_store_ptr info, - long total_bytes_needed)); - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. jpeg_mem_init will be called before anything is - * allocated (and, therefore, nothing in cinfo is of use except the error - * manager pointer). It should return a suitable default value for - * max_memory_to_use; this may subsequently be overridden by the surrounding - * application. (Note that max_memory_to_use is only important if - * jpeg_mem_available chooses to consult it ... no one else will.) - * jpeg_mem_term may assume that all requested memory has been freed and that - * all opened backing-store objects have been closed. - */ - -EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo)); -EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo)); diff --git a/jpeg/jmorecfg.h b/jpeg/jmorecfg.h deleted file mode 100755 index 6c085c3..0000000 --- a/jpeg/jmorecfg.h +++ /dev/null @@ -1,369 +0,0 @@ -/* - * jmorecfg.h - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains additional configuration options that customize the - * JPEG software for special applications or support machine-dependent - * optimizations. Most users will not need to touch this file. - */ - - -/* - * Define BITS_IN_JSAMPLE as either - * 8 for 8-bit sample values (the usual setting) - * 12 for 12-bit sample values - * Only 8 and 12 are legal data precisions for lossy JPEG according to the - * JPEG standard, and the IJG code does not support anything else! - * We do not support run-time selection of data precision, sorry. - */ - -#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ - - -/* - * Maximum number of components (color channels) allowed in JPEG image. - * To meet the letter of the JPEG spec, set this to 255. However, darn - * few applications need more than 4 channels (maybe 5 for CMYK + alpha - * mask). We recommend 10 as a reasonable compromise; use 4 if you are - * really short on memory. (Each allowed component costs a hundred or so - * bytes of storage, whether actually used in an image or not.) - */ - -#define MAX_COMPONENTS 10 /* maximum number of image components */ - - -/* - * Basic data types. - * You may need to change these if you have a machine with unusual data - * type sizes; for example, "char" not 8 bits, "short" not 16 bits, - * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, - * but it had better be at least 16. - */ - -/* Representation of a single sample (pixel element value). - * We frequently allocate large arrays of these, so it's important to keep - * them small. But if you have memory to burn and access to char or short - * arrays is very slow on your hardware, you might want to change these. - */ - -#if BITS_IN_JSAMPLE == 8 -/* JSAMPLE should be the smallest type that will hold the values 0..255. - * You can use a signed char by having GETJSAMPLE mask it with 0xFF. - */ - -#ifdef HAVE_UNSIGNED_CHAR - -typedef unsigned char JSAMPLE; -#define GETJSAMPLE(value) ((int) (value)) - -#else /* not HAVE_UNSIGNED_CHAR */ - -typedef char JSAMPLE; -#ifdef CHAR_IS_UNSIGNED -#define GETJSAMPLE(value) ((int) (value)) -#else -#define GETJSAMPLE(value) ((int) (value) & 0xFF) -#endif /* CHAR_IS_UNSIGNED */ - -#endif /* HAVE_UNSIGNED_CHAR */ - -#define MAXJSAMPLE 255 -#define CENTERJSAMPLE 128 - -#endif /* BITS_IN_JSAMPLE == 8 */ - - -#if BITS_IN_JSAMPLE == 12 -/* JSAMPLE should be the smallest type that will hold the values 0..4095. - * On nearly all machines "short" will do nicely. - */ - -typedef short JSAMPLE; -#define GETJSAMPLE(value) ((int) (value)) - -#define MAXJSAMPLE 4095 -#define CENTERJSAMPLE 2048 - -#endif /* BITS_IN_JSAMPLE == 12 */ - - -/* Representation of a DCT frequency coefficient. - * This should be a signed value of at least 16 bits; "short" is usually OK. - * Again, we allocate large arrays of these, but you can change to int - * if you have memory to burn and "short" is really slow. - */ - -typedef short JCOEF; - - -/* Compressed datastreams are represented as arrays of JOCTET. - * These must be EXACTLY 8 bits wide, at least once they are written to - * external storage. Note that when using the stdio data source/destination - * managers, this is also the data type passed to fread/fwrite. - */ - -#ifdef HAVE_UNSIGNED_CHAR - -typedef unsigned char JOCTET; -#define GETJOCTET(value) (value) - -#else /* not HAVE_UNSIGNED_CHAR */ - -typedef char JOCTET; -#ifdef CHAR_IS_UNSIGNED -#define GETJOCTET(value) (value) -#else -#define GETJOCTET(value) ((value) & 0xFF) -#endif /* CHAR_IS_UNSIGNED */ - -#endif /* HAVE_UNSIGNED_CHAR */ - - -/* These typedefs are used for various table entries and so forth. - * They must be at least as wide as specified; but making them too big - * won't cost a huge amount of memory, so we don't provide special - * extraction code like we did for JSAMPLE. (In other words, these - * typedefs live at a different point on the speed/space tradeoff curve.) - */ - -/* UINT8 must hold at least the values 0..255. */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char UINT8; -#else /* not HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char UINT8; -#else /* not CHAR_IS_UNSIGNED */ -typedef short UINT8; -#endif /* CHAR_IS_UNSIGNED */ -#endif /* HAVE_UNSIGNED_CHAR */ - -/* UINT16 must hold at least the values 0..65535. */ - -#ifdef HAVE_UNSIGNED_SHORT -typedef unsigned short UINT16; -#else /* not HAVE_UNSIGNED_SHORT */ -typedef unsigned int UINT16; -#endif /* HAVE_UNSIGNED_SHORT */ - -/* INT16 must hold at least the values -32768..32767. */ - -#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ -typedef short INT16; -#endif - -/* INT32 must hold at least signed 32-bit values. */ - -#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ -#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ -#ifndef _BASETSD_H /* MinGW is slightly different */ -#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ -typedef long INT32; -#endif -#endif -#endif -#endif - -/* Datatype used for image dimensions. The JPEG standard only supports - * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore - * "unsigned int" is sufficient on all machines. However, if you need to - * handle larger images and you don't mind deviating from the spec, you - * can change this datatype. - */ - -typedef unsigned int JDIMENSION; - -#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ - - -/* These macros are used in all function definitions and extern declarations. - * You could modify them if you need to change function linkage conventions; - * in particular, you'll need to do that to make the library a Windows DLL. - * Another application is to make all functions global for use with debuggers - * or code profilers that require it. - */ - -/* a function called through method pointers: */ -#define METHODDEF(type) static type -/* a function used only in its module: */ -#define LOCAL(type) static type -/* a function referenced thru EXTERNs: */ -#define GLOBAL(type) type -/* a reference to a GLOBAL function: */ -#define EXTERN(type) extern type - - -/* This macro is used to declare a "method", that is, a function pointer. - * We want to supply prototype parameters if the compiler can cope. - * Note that the arglist parameter must be parenthesized! - * Again, you can customize this if you need special linkage keywords. - */ - -#ifdef HAVE_PROTOTYPES -#define JMETHOD(type,methodname,arglist) type (*methodname) arglist -#else -#define JMETHOD(type,methodname,arglist) type (*methodname) () -#endif - - -/* Here is the pseudo-keyword for declaring pointers that must be "far" - * on 80x86 machines. Most of the specialized coding for 80x86 is handled - * by just saying "FAR *" where such a pointer is needed. In a few places - * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol. - */ - -#ifndef FAR -#ifdef NEED_FAR_POINTERS -#define FAR far -#else -#define FAR -#endif -#endif - - -/* - * On a few systems, type boolean and/or its values FALSE, TRUE may appear - * in standard header files. Or you may have conflicts with application- - * specific header files that you want to include together with these files. - * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. - */ - -#ifndef HAVE_BOOLEAN -typedef int boolean; -#endif -#ifndef FALSE /* in case these macros already exist */ -#define FALSE 0 /* values of boolean */ -#endif -#ifndef TRUE -#define TRUE 1 -#endif - - -/* - * The remaining options affect code selection within the JPEG library, - * but they don't need to be visible to most applications using the library. - * To minimize application namespace pollution, the symbols won't be - * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. - */ - -#ifdef JPEG_INTERNALS -#define JPEG_INTERNAL_OPTIONS -#endif - -#ifdef JPEG_INTERNAL_OPTIONS - - -/* - * These defines indicate whether to include various optional functions. - * Undefining some of these symbols will produce a smaller but less capable - * library. Note that you can leave certain source files out of the - * compilation/linking process if you've #undef'd the corresponding symbols. - * (You may HAVE to do that if your compiler doesn't like null source files.) - */ - -/* Capability options common to encoder and decoder: */ - -#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ -#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ -#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ - -/* Encoder capability options: */ - -#define C_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ -#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ -#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ -#define DCT_SCALING_SUPPORTED /* Input rescaling via DCT? (Requires DCT_ISLOW)*/ -#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ -/* Note: if you selected 12-bit data precision, it is dangerous to turn off - * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit - * precision, so jchuff.c normally uses entropy optimization to compute - * usable tables for higher precision. If you don't want to do optimization, - * you'll have to supply different default Huffman tables. - * The exact same statements apply for progressive JPEG: the default tables - * don't work for progressive mode. (This may get fixed, however.) - */ -#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ - -/* Decoder capability options: */ - -#define D_ARITH_CODING_SUPPORTED /* Arithmetic coding back end? */ -#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ -#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ -#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ -#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ -#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ -#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ -#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ -#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ -#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ - -/* more capability options later, no doubt */ - - -/* - * Ordering of RGB data in scanlines passed to or from the application. - * If your application wants to deal with data in the order B,G,R, just - * change these macros. You can also deal with formats such as R,G,B,X - * (one extra byte per pixel) by changing RGB_PIXELSIZE. Note that changing - * the offsets will also change the order in which colormap data is organized. - * RESTRICTIONS: - * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats. - * 2. The color quantizer modules will not behave desirably if RGB_PIXELSIZE - * is not 3 (they don't understand about dummy color components!). So you - * can't use color quantization if you change that value. - */ - -#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ -#define RGB_GREEN 1 /* Offset of Green */ -#define RGB_BLUE 2 /* Offset of Blue */ -#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ - - -/* Definitions for speed-related optimizations. */ - - -/* If your compiler supports inline functions, define INLINE - * as the inline keyword; otherwise define it as empty. - */ - -#ifndef INLINE -#ifdef __GNUC__ /* for instance, GNU C knows about inline */ -#define INLINE __inline__ -#endif -#ifndef INLINE -#define INLINE /* default is to define it as empty */ -#endif -#endif - - -/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying - * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER - * as short on such a machine. MULTIPLIER must be at least 16 bits wide. - */ - -#ifndef MULTIPLIER -#define MULTIPLIER int /* type for fastest integer multiply */ -#endif - - -/* FAST_FLOAT should be either float or double, whichever is done faster - * by your compiler. (Note that this type is only used in the floating point - * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) - * Typically, float is faster in ANSI C compilers, while double is faster in - * pre-ANSI compilers (because they insist on converting to double anyway). - * The code below therefore chooses float if we have ANSI-style prototypes. - */ - -#ifndef FAST_FLOAT -#ifdef HAVE_PROTOTYPES -#define FAST_FLOAT float -#else -#define FAST_FLOAT double -#endif -#endif - -#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/jpeg/jpegint.h b/jpeg/jpegint.h deleted file mode 100755 index c0d5c14..0000000 --- a/jpeg/jpegint.h +++ /dev/null @@ -1,426 +0,0 @@ -/* - * jpegint.h - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 1997-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file provides common declarations for the various JPEG modules. - * These declarations are considered internal to the JPEG library; most - * applications using the library shouldn't need to include this file. - */ - - -/* Declarations for both compression & decompression */ - -typedef enum { /* Operating modes for buffer controllers */ - JBUF_PASS_THRU, /* Plain stripwise operation */ - /* Remaining modes require a full-image buffer to have been created */ - JBUF_SAVE_SOURCE, /* Run source subobject only, save output */ - JBUF_CRANK_DEST, /* Run dest subobject only, using saved data */ - JBUF_SAVE_AND_PASS /* Run both subobjects, save output */ -} J_BUF_MODE; - -/* Values of global_state field (jdapi.c has some dependencies on ordering!) */ -#define CSTATE_START 100 /* after create_compress */ -#define CSTATE_SCANNING 101 /* start_compress done, write_scanlines OK */ -#define CSTATE_RAW_OK 102 /* start_compress done, write_raw_data OK */ -#define CSTATE_WRCOEFS 103 /* jpeg_write_coefficients done */ -#define DSTATE_START 200 /* after create_decompress */ -#define DSTATE_INHEADER 201 /* reading header markers, no SOS yet */ -#define DSTATE_READY 202 /* found SOS, ready for start_decompress */ -#define DSTATE_PRELOAD 203 /* reading multiscan file in start_decompress*/ -#define DSTATE_PRESCAN 204 /* performing dummy pass for 2-pass quant */ -#define DSTATE_SCANNING 205 /* start_decompress done, read_scanlines OK */ -#define DSTATE_RAW_OK 206 /* start_decompress done, read_raw_data OK */ -#define DSTATE_BUFIMAGE 207 /* expecting jpeg_start_output */ -#define DSTATE_BUFPOST 208 /* looking for SOS/EOI in jpeg_finish_output */ -#define DSTATE_RDCOEFS 209 /* reading file in jpeg_read_coefficients */ -#define DSTATE_STOPPING 210 /* looking for EOI in jpeg_finish_decompress */ - - -/* Declarations for compression modules */ - -/* Master control module */ -struct jpeg_comp_master { - JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo)); - JMETHOD(void, pass_startup, (j_compress_ptr cinfo)); - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean call_pass_startup; /* True if pass_startup must be called */ - boolean is_last_pass; /* True during last pass */ -}; - -/* Main buffer control (downsampled-data buffer) */ -struct jpeg_c_main_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, process_data, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail)); -}; - -/* Compression preprocessing (downsampling input buffer control) */ -struct jpeg_c_prep_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, pre_process_data, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, - JDIMENSION *in_row_ctr, - JDIMENSION in_rows_avail, - JSAMPIMAGE output_buf, - JDIMENSION *out_row_group_ctr, - JDIMENSION out_row_groups_avail)); -}; - -/* Coefficient buffer control */ -struct jpeg_c_coef_controller { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(boolean, compress_data, (j_compress_ptr cinfo, - JSAMPIMAGE input_buf)); -}; - -/* Colorspace conversion */ -struct jpeg_color_converter { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - JMETHOD(void, color_convert, (j_compress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPIMAGE output_buf, - JDIMENSION output_row, int num_rows)); -}; - -/* Downsampling */ -struct jpeg_downsampler { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - JMETHOD(void, downsample, (j_compress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION in_row_index, - JSAMPIMAGE output_buf, - JDIMENSION out_row_group_index)); - - boolean need_context_rows; /* TRUE if need rows above & below */ -}; - -/* Forward DCT (also controls coefficient quantization) */ -typedef JMETHOD(void, forward_DCT_ptr, - (j_compress_ptr cinfo, jpeg_component_info * compptr, - JSAMPARRAY sample_data, JBLOCKROW coef_blocks, - JDIMENSION start_row, JDIMENSION start_col, - JDIMENSION num_blocks)); - -struct jpeg_forward_dct { - JMETHOD(void, start_pass, (j_compress_ptr cinfo)); - /* It is useful to allow each component to have a separate FDCT method. */ - forward_DCT_ptr forward_DCT[MAX_COMPONENTS]; -}; - -/* Entropy encoding */ -struct jpeg_entropy_encoder { - JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics)); - JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data)); - JMETHOD(void, finish_pass, (j_compress_ptr cinfo)); -}; - -/* Marker writing */ -struct jpeg_marker_writer { - JMETHOD(void, write_file_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_frame_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_scan_header, (j_compress_ptr cinfo)); - JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo)); - JMETHOD(void, write_tables_only, (j_compress_ptr cinfo)); - /* These routines are exported to allow insertion of extra markers */ - /* Probably only COM and APPn markers should be written this way */ - JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker, - unsigned int datalen)); - JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val)); -}; - - -/* Declarations for decompression modules */ - -/* Master control module */ -struct jpeg_decomp_master { - JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean is_dummy_pass; /* True during 1st pass for 2-pass quant */ -}; - -/* Input control module */ -struct jpeg_input_controller { - JMETHOD(int, consume_input, (j_decompress_ptr cinfo)); - JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo)); - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo)); - - /* State variables made visible to other modules */ - boolean has_multiple_scans; /* True if file has multiple scans */ - boolean eoi_reached; /* True when EOI has been consumed */ -}; - -/* Main buffer control (downsampled-data buffer) */ -struct jpeg_d_main_controller { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, process_data, (j_decompress_ptr cinfo, - JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -}; - -/* Coefficient buffer control */ -struct jpeg_d_coef_controller { - JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo)); - JMETHOD(int, consume_data, (j_decompress_ptr cinfo)); - JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo)); - JMETHOD(int, decompress_data, (j_decompress_ptr cinfo, - JSAMPIMAGE output_buf)); - /* Pointer to array of coefficient virtual arrays, or NULL if none */ - jvirt_barray_ptr *coef_arrays; -}; - -/* Decompression postprocessing (color quantization buffer control) */ -struct jpeg_d_post_controller { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)); - JMETHOD(void, post_process_data, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); -}; - -/* Marker reading & parsing */ -struct jpeg_marker_reader { - JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo)); - /* Read markers until SOS or EOI. - * Returns same codes as are defined for jpeg_consume_input: - * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI. - */ - JMETHOD(int, read_markers, (j_decompress_ptr cinfo)); - /* Read a restart marker --- exported for use by entropy decoder only */ - jpeg_marker_parser_method read_restart_marker; - - /* State of marker reader --- nominally internal, but applications - * supplying COM or APPn handlers might like to know the state. - */ - boolean saw_SOI; /* found SOI? */ - boolean saw_SOF; /* found SOF? */ - int next_restart_num; /* next restart number expected (0-7) */ - unsigned int discarded_bytes; /* # of bytes skipped looking for a marker */ -}; - -/* Entropy decoding */ -struct jpeg_entropy_decoder { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo, - JBLOCKROW *MCU_data)); -}; - -/* Inverse DCT (also performs dequantization) */ -typedef JMETHOD(void, inverse_DCT_method_ptr, - (j_decompress_ptr cinfo, jpeg_component_info * compptr, - JCOEFPTR coef_block, - JSAMPARRAY output_buf, JDIMENSION output_col)); - -struct jpeg_inverse_dct { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - /* It is useful to allow each component to have a separate IDCT method. */ - inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS]; -}; - -/* Upsampling (note that upsampler must also call color converter) */ -struct jpeg_upsampler { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, upsample, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION *in_row_group_ctr, - JDIMENSION in_row_groups_avail, - JSAMPARRAY output_buf, - JDIMENSION *out_row_ctr, - JDIMENSION out_rows_avail)); - - boolean need_context_rows; /* TRUE if need rows above & below */ -}; - -/* Colorspace conversion */ -struct jpeg_color_deconverter { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, color_convert, (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, JDIMENSION input_row, - JSAMPARRAY output_buf, int num_rows)); -}; - -/* Color quantization or color precision reduction */ -struct jpeg_color_quantizer { - JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan)); - JMETHOD(void, color_quantize, (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, - int num_rows)); - JMETHOD(void, finish_pass, (j_decompress_ptr cinfo)); - JMETHOD(void, new_color_map, (j_decompress_ptr cinfo)); -}; - - -/* Miscellaneous useful macros */ - -#undef MAX -#define MAX(a,b) ((a) > (b) ? (a) : (b)) -#undef MIN -#define MIN(a,b) ((a) < (b) ? (a) : (b)) - - -/* We assume that right shift corresponds to signed division by 2 with - * rounding towards minus infinity. This is correct for typical "arithmetic - * shift" instructions that shift in copies of the sign bit. But some - * C compilers implement >> with an unsigned shift. For these machines you - * must define RIGHT_SHIFT_IS_UNSIGNED. - * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity. - * It is only applied with constant shift counts. SHIFT_TEMPS must be - * included in the variables of any routine using RIGHT_SHIFT. - */ - -#ifdef RIGHT_SHIFT_IS_UNSIGNED -#define SHIFT_TEMPS INT32 shift_temp; -#define RIGHT_SHIFT(x,shft) \ - ((shift_temp = (x)) < 0 ? \ - (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \ - (shift_temp >> (shft))) -#else -#define SHIFT_TEMPS -#define RIGHT_SHIFT(x,shft) ((x) >> (shft)) -#endif - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jinit_compress_master jICompress -#define jinit_c_master_control jICMaster -#define jinit_c_main_controller jICMainC -#define jinit_c_prep_controller jICPrepC -#define jinit_c_coef_controller jICCoefC -#define jinit_color_converter jICColor -#define jinit_downsampler jIDownsampler -#define jinit_forward_dct jIFDCT -#define jinit_huff_encoder jIHEncoder -#define jinit_arith_encoder jIAEncoder -#define jinit_marker_writer jIMWriter -#define jinit_master_decompress jIDMaster -#define jinit_d_main_controller jIDMainC -#define jinit_d_coef_controller jIDCoefC -#define jinit_d_post_controller jIDPostC -#define jinit_input_controller jIInCtlr -#define jinit_marker_reader jIMReader -#define jinit_huff_decoder jIHDecoder -#define jinit_arith_decoder jIADecoder -#define jinit_inverse_dct jIIDCT -#define jinit_upsampler jIUpsampler -#define jinit_color_deconverter jIDColor -#define jinit_1pass_quantizer jI1Quant -#define jinit_2pass_quantizer jI2Quant -#define jinit_merged_upsampler jIMUpsampler -#define jinit_memory_mgr jIMemMgr -#define jdiv_round_up jDivRound -#define jround_up jRound -#define jzero_far jZeroFar -#define jcopy_sample_rows jCopySamples -#define jcopy_block_row jCopyBlocks -#define jpeg_zigzag_order jZIGTable -#define jpeg_natural_order jZAGTable -#define jpeg_natural_order7 jZAG7Table -#define jpeg_natural_order6 jZAG6Table -#define jpeg_natural_order5 jZAG5Table -#define jpeg_natural_order4 jZAG4Table -#define jpeg_natural_order3 jZAG3Table -#define jpeg_natural_order2 jZAG2Table -#define jpeg_aritab jAriTab -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays - * and coefficient-block arrays. This won't work on 80x86 because the arrays - * are FAR and we're assuming a small-pointer memory model. However, some - * DOS compilers provide far-pointer versions of memcpy() and memset() even - * in the small-model libraries. These will be used if USE_FMEM is defined. - * Otherwise, the routines in jutils.c do it the hard way. - */ - -#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ -#define FMEMZERO(target,size) MEMZERO(target,size) -#else /* 80x86 case */ -#ifdef USE_FMEM -#define FMEMZERO(target,size) _fmemset((void FAR *)(target), 0, (size_t)(size)) -#else -EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero)); -#define FMEMZERO(target,size) jzero_far(target, size) -#endif -#endif - - -/* Compression module initialization routines */ -EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo, - boolean transcode_only)); -EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_arith_encoder JPP((j_compress_ptr cinfo)); -EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo)); -/* Decompression module initialization routines */ -EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo, - boolean need_full_buffer)); -EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_arith_decoder JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo)); -EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo)); -/* Memory manager initialization */ -EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo)); - -/* Utility routines in jutils.c */ -EXTERN(long) jdiv_round_up JPP((long a, long b)); -EXTERN(long) jround_up JPP((long a, long b)); -EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row, - JSAMPARRAY output_array, int dest_row, - int num_rows, JDIMENSION num_cols)); -EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row, - JDIMENSION num_blocks)); -/* Constant tables in jutils.c */ -#if 0 /* This table is not actually needed in v6a */ -extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */ -#endif -extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */ -extern const int jpeg_natural_order7[]; /* zz to natural order for 7x7 block */ -extern const int jpeg_natural_order6[]; /* zz to natural order for 6x6 block */ -extern const int jpeg_natural_order5[]; /* zz to natural order for 5x5 block */ -extern const int jpeg_natural_order4[]; /* zz to natural order for 4x4 block */ -extern const int jpeg_natural_order3[]; /* zz to natural order for 3x3 block */ -extern const int jpeg_natural_order2[]; /* zz to natural order for 2x2 block */ - -/* Arithmetic coding probability estimation tables in jaricom.c */ -extern const INT32 jpeg_aritab[]; - -/* Suppress undefined-structure complaints if necessary. */ - -#ifdef INCOMPLETE_TYPES_BROKEN -#ifndef AM_MEMORY_MANAGER /* only jmemmgr.c defines these */ -struct jvirt_sarray_control { long dummy; }; -struct jvirt_barray_control { long dummy; }; -#endif -#endif /* INCOMPLETE_TYPES_BROKEN */ diff --git a/jpeg/jpeglib.h b/jpeg/jpeglib.h deleted file mode 100755 index 1327cff..0000000 --- a/jpeg/jpeglib.h +++ /dev/null @@ -1,1160 +0,0 @@ -/* - * jpeglib.h - * - * Copyright (C) 1991-1998, Thomas G. Lane. - * Modified 2002-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file defines the application interface for the JPEG library. - * Most applications using the library need only include this file, - * and perhaps jerror.h if they want to know the exact error codes. - */ - -#ifndef JPEGLIB_H -#define JPEGLIB_H - -/* - * First we include the configuration files that record how this - * installation of the JPEG library is set up. jconfig.h can be - * generated automatically for many systems. jmorecfg.h contains - * manual configuration options that most people need not worry about. - */ - -#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ -#include "jconfig.h" /* widely used configuration options */ -#endif -#include "jmorecfg.h" /* seldom changed options */ - - -#ifdef __cplusplus -#ifndef DONT_USE_EXTERN_C -extern "C" { -#endif -#endif - -/* Version IDs for the JPEG library. - * Might be useful for tests like "#if JPEG_LIB_VERSION >= 80". - */ - -#define JPEG_LIB_VERSION 80 /* Compatibility version 8.0 */ -#define JPEG_LIB_VERSION_MAJOR 8 -#define JPEG_LIB_VERSION_MINOR 4 - - -/* Various constants determining the sizes of things. - * All of these are specified by the JPEG standard, so don't change them - * if you want to be compatible. - */ - -#define DCTSIZE 8 /* The basic DCT block is 8x8 coefficients */ -#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ -#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ -#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ -#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ -#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ -#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ -/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; - * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. - * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU - * to handle it. We even let you do this from the jconfig.h file. However, - * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe - * sometimes emits noncompliant files doesn't mean you should too. - */ -#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ -#ifndef D_MAX_BLOCKS_IN_MCU -#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ -#endif - - -/* Data structures for images (arrays of samples and of DCT coefficients). - * On 80x86 machines, the image arrays are too big for near pointers, - * but the pointer arrays can fit in near memory. - */ - -typedef JSAMPLE FAR *JSAMPROW; /* ptr to one image row of pixel samples. */ -typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ -typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ - -typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ -typedef JBLOCK FAR *JBLOCKROW; /* pointer to one row of coefficient blocks */ -typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ -typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ - -typedef JCOEF FAR *JCOEFPTR; /* useful in a couple of places */ - - -/* Types for JPEG compression parameters and working tables. */ - - -/* DCT coefficient quantization tables. */ - -typedef struct { - /* This array gives the coefficient quantizers in natural array order - * (not the zigzag order in which they are stored in a JPEG DQT marker). - * CAUTION: IJG versions prior to v6a kept this array in zigzag order. - */ - UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JQUANT_TBL; - - -/* Huffman coding tables. */ - -typedef struct { - /* These two fields directly represent the contents of a JPEG DHT marker */ - UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ - /* length k bits; bits[0] is unused */ - UINT8 huffval[256]; /* The symbols, in order of incr code length */ - /* This field is used only during compression. It's initialized FALSE when - * the table is created, and set TRUE when it's been output to the file. - * You could suppress output of a table by setting this to TRUE. - * (See jpeg_suppress_tables for an example.) - */ - boolean sent_table; /* TRUE when table has been output */ -} JHUFF_TBL; - - -/* Basic info about one component (color channel). */ - -typedef struct { - /* These values are fixed over the whole image. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOF marker. */ - int component_id; /* identifier for this component (0..255) */ - int component_index; /* its index in SOF or cinfo->comp_info[] */ - int h_samp_factor; /* horizontal sampling factor (1..4) */ - int v_samp_factor; /* vertical sampling factor (1..4) */ - int quant_tbl_no; /* quantization table selector (0..3) */ - /* These values may vary between scans. */ - /* For compression, they must be supplied by parameter setup; */ - /* for decompression, they are read from the SOS marker. */ - /* The decompressor output side may not use these variables. */ - int dc_tbl_no; /* DC entropy table selector (0..3) */ - int ac_tbl_no; /* AC entropy table selector (0..3) */ - - /* Remaining fields should be treated as private by applications. */ - - /* These values are computed during compression or decompression startup: */ - /* Component's size in DCT blocks. - * Any dummy blocks added to complete an MCU are not counted; therefore - * these values do not depend on whether a scan is interleaved or not. - */ - JDIMENSION width_in_blocks; - JDIMENSION height_in_blocks; - /* Size of a DCT block in samples, - * reflecting any scaling we choose to apply during the DCT step. - * Values from 1 to 16 are supported. - * Note that different components may receive different DCT scalings. - */ - int DCT_h_scaled_size; - int DCT_v_scaled_size; - /* The downsampled dimensions are the component's actual, unpadded number - * of samples at the main buffer (preprocessing/compression interface); - * DCT scaling is included, so - * downsampled_width = ceil(image_width * Hi/Hmax * DCT_h_scaled_size/DCTSIZE) - * and similarly for height. - */ - JDIMENSION downsampled_width; /* actual width in samples */ - JDIMENSION downsampled_height; /* actual height in samples */ - /* This flag is used only for decompression. In cases where some of the - * components will be ignored (eg grayscale output from YCbCr image), - * we can skip most computations for the unused components. - */ - boolean component_needed; /* do we need the value of this component? */ - - /* These values are computed before starting a scan of the component. */ - /* The decompressor output side may not use these variables. */ - int MCU_width; /* number of blocks per MCU, horizontally */ - int MCU_height; /* number of blocks per MCU, vertically */ - int MCU_blocks; /* MCU_width * MCU_height */ - int MCU_sample_width; /* MCU width in samples: MCU_width * DCT_h_scaled_size */ - int last_col_width; /* # of non-dummy blocks across in last MCU */ - int last_row_height; /* # of non-dummy blocks down in last MCU */ - - /* Saved quantization table for component; NULL if none yet saved. - * See jdinput.c comments about the need for this information. - * This field is currently used only for decompression. - */ - JQUANT_TBL * quant_table; - - /* Private per-component storage for DCT or IDCT subsystem. */ - void * dct_table; -} jpeg_component_info; - - -/* The script for encoding a multiple-scan file is an array of these: */ - -typedef struct { - int comps_in_scan; /* number of components encoded in this scan */ - int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ - int Ss, Se; /* progressive JPEG spectral selection parms */ - int Ah, Al; /* progressive JPEG successive approx. parms */ -} jpeg_scan_info; - -/* The decompressor can save APPn and COM markers in a list of these: */ - -typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr; - -struct jpeg_marker_struct { - jpeg_saved_marker_ptr next; /* next in list, or NULL */ - UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */ - unsigned int original_length; /* # bytes of data in the file */ - unsigned int data_length; /* # bytes of data saved at data[] */ - JOCTET FAR * data; /* the data contained in the marker */ - /* the marker length word is not counted in data_length or original_length */ -}; - -/* Known color spaces. */ - -typedef enum { - JCS_UNKNOWN, /* error/unspecified */ - JCS_GRAYSCALE, /* monochrome */ - JCS_RGB, /* red/green/blue */ - JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ - JCS_CMYK, /* C/M/Y/K */ - JCS_YCCK /* Y/Cb/Cr/K */ -} J_COLOR_SPACE; - -/* DCT/IDCT algorithm options. */ - -typedef enum { - JDCT_ISLOW, /* slow but accurate integer algorithm */ - JDCT_IFAST, /* faster, less accurate integer method */ - JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ -} J_DCT_METHOD; - -#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ -#define JDCT_DEFAULT JDCT_ISLOW -#endif -#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ -#define JDCT_FASTEST JDCT_IFAST -#endif - -/* Dithering options for decompression. */ - -typedef enum { - JDITHER_NONE, /* no dithering */ - JDITHER_ORDERED, /* simple ordered dither */ - JDITHER_FS /* Floyd-Steinberg error diffusion dither */ -} J_DITHER_MODE; - - -/* Common fields between JPEG compression and decompression master structs. */ - -#define jpeg_common_fields \ - struct jpeg_error_mgr * err; /* Error handler module */\ - struct jpeg_memory_mgr * mem; /* Memory manager module */\ - struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\ - void * client_data; /* Available for use by application */\ - boolean is_decompressor; /* So common code can tell which is which */\ - int global_state /* For checking call sequence validity */ - -/* Routines that are to be used by both halves of the library are declared - * to receive a pointer to this structure. There are no actual instances of - * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. - */ -struct jpeg_common_struct { - jpeg_common_fields; /* Fields common to both master struct types */ - /* Additional fields follow in an actual jpeg_compress_struct or - * jpeg_decompress_struct. All three structs must agree on these - * initial fields! (This would be a lot cleaner in C++.) - */ -}; - -typedef struct jpeg_common_struct * j_common_ptr; -typedef struct jpeg_compress_struct * j_compress_ptr; -typedef struct jpeg_decompress_struct * j_decompress_ptr; - - -/* Master record for a compression instance */ - -struct jpeg_compress_struct { - jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ - - /* Destination for compressed data */ - struct jpeg_destination_mgr * dest; - - /* Description of source image --- these fields must be filled in by - * outer application before starting compression. in_color_space must - * be correct before you can even call jpeg_set_defaults(). - */ - - JDIMENSION image_width; /* input image width */ - JDIMENSION image_height; /* input image height */ - int input_components; /* # of color components in input image */ - J_COLOR_SPACE in_color_space; /* colorspace of input image */ - - double input_gamma; /* image gamma of input image */ - - /* Compression parameters --- these fields must be set before calling - * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to - * initialize everything to reasonable defaults, then changing anything - * the application specifically wants to change. That way you won't get - * burnt when new parameters are added. Also note that there are several - * helper routines to simplify changing parameters. - */ - - unsigned int scale_num, scale_denom; /* fraction by which to scale image */ - - JDIMENSION jpeg_width; /* scaled JPEG image width */ - JDIMENSION jpeg_height; /* scaled JPEG image height */ - /* Dimensions of actual JPEG image that will be written to file, - * derived from input dimensions by scaling factors above. - * These fields are computed by jpeg_start_compress(). - * You can also use jpeg_calc_jpeg_dimensions() to determine these values - * in advance of calling jpeg_start_compress(). - */ - - int data_precision; /* bits of precision in image data */ - - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - int q_scale_factor[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined, - * and corresponding scale factors (percentage, initialized 100). - */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - int num_scans; /* # of entries in scan_info array */ - const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */ - /* The default value of scan_info is NULL, which causes a single-scan - * sequential JPEG file to be emitted. To create a multi-scan file, - * set num_scans and scan_info to point to an array of scan definitions. - */ - - boolean raw_data_in; /* TRUE=caller supplies downsampled data */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */ - int smoothing_factor; /* 1..100, or 0 for no input smoothing */ - J_DCT_METHOD dct_method; /* DCT algorithm selector */ - - /* The restart interval can be specified in absolute MCUs by setting - * restart_interval, or in MCU rows by setting restart_in_rows - * (in which case the correct restart_interval will be figured - * for each scan). - */ - unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ - int restart_in_rows; /* if > 0, MCU rows per restart interval */ - - /* Parameters controlling emission of special markers. */ - - boolean write_JFIF_header; /* should a JFIF marker be written? */ - UINT8 JFIF_major_version; /* What to write for the JFIF version number */ - UINT8 JFIF_minor_version; - /* These three values are not used by the JPEG code, merely copied */ - /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ - /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ - /* ratio is defined by X_density/Y_density even when density_unit=0. */ - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean write_Adobe_marker; /* should an Adobe marker be written? */ - - /* State variable: index of next scanline to be written to - * jpeg_write_scanlines(). Application may use this to control its - * processing loop, e.g., "while (next_scanline < image_height)". - */ - - JDIMENSION next_scanline; /* 0 .. image_height-1 */ - - /* Remaining fields are known throughout compressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during compression startup - */ - boolean progressive_mode; /* TRUE if scan script uses progressive mode */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ - int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ - /* The coefficient controller receives data in units of MCU rows as defined - * for fully interleaved scans (whether the JPEG file is interleaved or not). - * There are v_samp_factor * DCTSIZE sample rows of each component in an - * "iMCU" (interleaved MCU) row. - */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[C_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - int block_size; /* the basic DCT block size: 1..16 */ - const int * natural_order; /* natural-order position array */ - int lim_Se; /* min( Se, DCTSIZE2-1 ) */ - - /* - * Links to compression subobjects (methods and private variables of modules) - */ - struct jpeg_comp_master * master; - struct jpeg_c_main_controller * main; - struct jpeg_c_prep_controller * prep; - struct jpeg_c_coef_controller * coef; - struct jpeg_marker_writer * marker; - struct jpeg_color_converter * cconvert; - struct jpeg_downsampler * downsample; - struct jpeg_forward_dct * fdct; - struct jpeg_entropy_encoder * entropy; - jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */ - int script_space_size; -}; - - -/* Master record for a decompression instance */ - -struct jpeg_decompress_struct { - jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ - - /* Source of compressed data */ - struct jpeg_source_mgr * src; - - /* Basic description of image --- filled in by jpeg_read_header(). */ - /* Application may inspect these values to decide how to process image. */ - - JDIMENSION image_width; /* nominal image width (from SOF marker) */ - JDIMENSION image_height; /* nominal image height */ - int num_components; /* # of color components in JPEG image */ - J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ - - /* Decompression processing parameters --- these fields must be set before - * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes - * them to default values. - */ - - J_COLOR_SPACE out_color_space; /* colorspace for output */ - - unsigned int scale_num, scale_denom; /* fraction by which to scale image */ - - double output_gamma; /* image gamma wanted in output */ - - boolean buffered_image; /* TRUE=multiple output passes */ - boolean raw_data_out; /* TRUE=downsampled data wanted */ - - J_DCT_METHOD dct_method; /* IDCT algorithm selector */ - boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ - boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ - - boolean quantize_colors; /* TRUE=colormapped output wanted */ - /* the following are ignored if not quantize_colors: */ - J_DITHER_MODE dither_mode; /* type of color dithering to use */ - boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ - int desired_number_of_colors; /* max # colors to use in created colormap */ - /* these are significant only in buffered-image mode: */ - boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ - boolean enable_external_quant;/* enable future use of external colormap */ - boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ - - /* Description of actual output image that will be returned to application. - * These fields are computed by jpeg_start_decompress(). - * You can also use jpeg_calc_output_dimensions() to determine these values - * in advance of calling jpeg_start_decompress(). - */ - - JDIMENSION output_width; /* scaled image width */ - JDIMENSION output_height; /* scaled image height */ - int out_color_components; /* # of color components in out_color_space */ - int output_components; /* # of color components returned */ - /* output_components is 1 (a colormap index) when quantizing colors; - * otherwise it equals out_color_components. - */ - int rec_outbuf_height; /* min recommended height of scanline buffer */ - /* If the buffer passed to jpeg_read_scanlines() is less than this many rows - * high, space and time will be wasted due to unnecessary data copying. - * Usually rec_outbuf_height will be 1 or 2, at most 4. - */ - - /* When quantizing colors, the output colormap is described by these fields. - * The application can supply a colormap by setting colormap non-NULL before - * calling jpeg_start_decompress; otherwise a colormap is created during - * jpeg_start_decompress or jpeg_start_output. - * The map has out_color_components rows and actual_number_of_colors columns. - */ - int actual_number_of_colors; /* number of entries in use */ - JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ - - /* State variables: these variables indicate the progress of decompression. - * The application may examine these but must not modify them. - */ - - /* Row index of next scanline to be read from jpeg_read_scanlines(). - * Application may use this to control its processing loop, e.g., - * "while (output_scanline < output_height)". - */ - JDIMENSION output_scanline; /* 0 .. output_height-1 */ - - /* Current input scan number and number of iMCU rows completed in scan. - * These indicate the progress of the decompressor input side. - */ - int input_scan_number; /* Number of SOS markers seen so far */ - JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ - - /* The "output scan number" is the notional scan being displayed by the - * output side. The decompressor will not allow output scan/row number - * to get ahead of input scan/row, but it can fall arbitrarily far behind. - */ - int output_scan_number; /* Nominal scan number being displayed */ - JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ - - /* Current progression status. coef_bits[c][i] indicates the precision - * with which component c's DCT coefficient i (in zigzag order) is known. - * It is -1 when no data has yet been received, otherwise it is the point - * transform (shift) value for the most recent scan of the coefficient - * (thus, 0 at completion of the progression). - * This pointer is NULL when reading a non-progressive file. - */ - int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ - - /* Internal JPEG parameters --- the application usually need not look at - * these fields. Note that the decompressor output side may not use - * any parameters that can change between scans. - */ - - /* Quantization and Huffman tables are carried forward across input - * datastreams when processing abbreviated JPEG datastreams. - */ - - JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]; - /* ptrs to coefficient quantization tables, or NULL if not defined */ - - JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; - JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; - /* ptrs to Huffman coding tables, or NULL if not defined */ - - /* These parameters are never carried across datastreams, since they - * are given in SOF/SOS markers or defined to be reset by SOI. - */ - - int data_precision; /* bits of precision in image data */ - - jpeg_component_info * comp_info; - /* comp_info[i] describes component that appears i'th in SOF */ - - boolean is_baseline; /* TRUE if Baseline SOF0 encountered */ - boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ - boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ - - UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ - UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ - UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ - - unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ - - /* These fields record data obtained from optional markers recognized by - * the JPEG library. - */ - boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ - /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */ - UINT8 JFIF_major_version; /* JFIF version number */ - UINT8 JFIF_minor_version; - UINT8 density_unit; /* JFIF code for pixel size units */ - UINT16 X_density; /* Horizontal pixel density */ - UINT16 Y_density; /* Vertical pixel density */ - boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ - UINT8 Adobe_transform; /* Color transform code from Adobe marker */ - - boolean CCIR601_sampling; /* TRUE=first samples are cosited */ - - /* Aside from the specific data retained from APPn markers known to the - * library, the uninterpreted contents of any or all APPn and COM markers - * can be saved in a list for examination by the application. - */ - jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */ - - /* Remaining fields are known throughout decompressor, but generally - * should not be touched by a surrounding application. - */ - - /* - * These fields are computed during decompression startup - */ - int max_h_samp_factor; /* largest h_samp_factor */ - int max_v_samp_factor; /* largest v_samp_factor */ - - int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ - int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ - - JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ - /* The coefficient controller's input and output progress is measured in - * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows - * in fully interleaved JPEG scans, but are used whether the scan is - * interleaved or not. We define an iMCU row as v_samp_factor DCT block - * rows of each component. Therefore, the IDCT output contains - * v_samp_factor*DCT_v_scaled_size sample rows of a component per iMCU row. - */ - - JSAMPLE * sample_range_limit; /* table for fast range-limiting */ - - /* - * These fields are valid during any one scan. - * They describe the components and MCUs actually appearing in the scan. - * Note that the decompressor output side must not use these fields. - */ - int comps_in_scan; /* # of JPEG components in this scan */ - jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN]; - /* *cur_comp_info[i] describes component that appears i'th in SOS */ - - JDIMENSION MCUs_per_row; /* # of MCUs across the image */ - JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ - - int blocks_in_MCU; /* # of DCT blocks per MCU */ - int MCU_membership[D_MAX_BLOCKS_IN_MCU]; - /* MCU_membership[i] is index in cur_comp_info of component owning */ - /* i'th block in an MCU */ - - int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ - - /* These fields are derived from Se of first SOS marker. - */ - int block_size; /* the basic DCT block size: 1..16 */ - const int * natural_order; /* natural-order position array for entropy decode */ - int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */ - - /* This field is shared between entropy decoder and marker parser. - * It is either zero or the code of a JPEG marker that has been - * read from the data source, but has not yet been processed. - */ - int unread_marker; - - /* - * Links to decompression subobjects (methods, private variables of modules) - */ - struct jpeg_decomp_master * master; - struct jpeg_d_main_controller * main; - struct jpeg_d_coef_controller * coef; - struct jpeg_d_post_controller * post; - struct jpeg_input_controller * inputctl; - struct jpeg_marker_reader * marker; - struct jpeg_entropy_decoder * entropy; - struct jpeg_inverse_dct * idct; - struct jpeg_upsampler * upsample; - struct jpeg_color_deconverter * cconvert; - struct jpeg_color_quantizer * cquantize; -}; - - -/* "Object" declarations for JPEG modules that may be supplied or called - * directly by the surrounding application. - * As with all objects in the JPEG library, these structs only define the - * publicly visible methods and state variables of a module. Additional - * private fields may exist after the public ones. - */ - - -/* Error handler object */ - -struct jpeg_error_mgr { - /* Error exit handler: does not return to caller */ - JMETHOD(void, error_exit, (j_common_ptr cinfo)); - /* Conditionally emit a trace or warning message */ - JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level)); - /* Routine that actually outputs a trace or error message */ - JMETHOD(void, output_message, (j_common_ptr cinfo)); - /* Format a message string for the most recent JPEG error or message */ - JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer)); -#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ - /* Reset error state variables at start of a new image */ - JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo)); - - /* The message ID code and any parameters are saved here. - * A message can have one string parameter or up to 8 int parameters. - */ - int msg_code; -#define JMSG_STR_PARM_MAX 80 - union { - int i[8]; - char s[JMSG_STR_PARM_MAX]; - } msg_parm; - - /* Standard state variables for error facility */ - - int trace_level; /* max msg_level that will be displayed */ - - /* For recoverable corrupt-data errors, we emit a warning message, - * but keep going unless emit_message chooses to abort. emit_message - * should count warnings in num_warnings. The surrounding application - * can check for bad data by seeing if num_warnings is nonzero at the - * end of processing. - */ - long num_warnings; /* number of corrupt-data warnings */ - - /* These fields point to the table(s) of error message strings. - * An application can change the table pointer to switch to a different - * message list (typically, to change the language in which errors are - * reported). Some applications may wish to add additional error codes - * that will be handled by the JPEG library error mechanism; the second - * table pointer is used for this purpose. - * - * First table includes all errors generated by JPEG library itself. - * Error code 0 is reserved for a "no such error string" message. - */ - const char * const * jpeg_message_table; /* Library errors */ - int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ - /* Second table can be added by application (see cjpeg/djpeg for example). - * It contains strings numbered first_addon_message..last_addon_message. - */ - const char * const * addon_message_table; /* Non-library errors */ - int first_addon_message; /* code for first string in addon table */ - int last_addon_message; /* code for last string in addon table */ -}; - - -/* Progress monitor object */ - -struct jpeg_progress_mgr { - JMETHOD(void, progress_monitor, (j_common_ptr cinfo)); - - long pass_counter; /* work units completed in this pass */ - long pass_limit; /* total number of work units in this pass */ - int completed_passes; /* passes completed so far */ - int total_passes; /* total number of passes expected */ -}; - - -/* Data destination object for compression */ - -struct jpeg_destination_mgr { - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - - JMETHOD(void, init_destination, (j_compress_ptr cinfo)); - JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo)); - JMETHOD(void, term_destination, (j_compress_ptr cinfo)); -}; - - -/* Data source object for decompression */ - -struct jpeg_source_mgr { - const JOCTET * next_input_byte; /* => next byte to read from buffer */ - size_t bytes_in_buffer; /* # of bytes remaining in buffer */ - - JMETHOD(void, init_source, (j_decompress_ptr cinfo)); - JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo)); - JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes)); - JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired)); - JMETHOD(void, term_source, (j_decompress_ptr cinfo)); -}; - - -/* Memory manager object. - * Allocates "small" objects (a few K total), "large" objects (tens of K), - * and "really big" objects (virtual arrays with backing store if needed). - * The memory manager does not allow individual objects to be freed; rather, - * each created object is assigned to a pool, and whole pools can be freed - * at once. This is faster and more convenient than remembering exactly what - * to free, especially where malloc()/free() are not too speedy. - * NB: alloc routines never return NULL. They exit to error_exit if not - * successful. - */ - -#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ -#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ -#define JPOOL_NUMPOOLS 2 - -typedef struct jvirt_sarray_control * jvirt_sarray_ptr; -typedef struct jvirt_barray_control * jvirt_barray_ptr; - - -struct jpeg_memory_mgr { - /* Method pointers */ - JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id, - size_t sizeofobject)); - JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id, - JDIMENSION samplesperrow, - JDIMENSION numrows)); - JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id, - JDIMENSION blocksperrow, - JDIMENSION numrows)); - JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION samplesperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo, - int pool_id, - boolean pre_zero, - JDIMENSION blocksperrow, - JDIMENSION numrows, - JDIMENSION maxaccess)); - JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo)); - JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo, - jvirt_sarray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo, - jvirt_barray_ptr ptr, - JDIMENSION start_row, - JDIMENSION num_rows, - boolean writable)); - JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id)); - JMETHOD(void, self_destruct, (j_common_ptr cinfo)); - - /* Limit on memory allocation for this JPEG object. (Note that this is - * merely advisory, not a guaranteed maximum; it only affects the space - * used for virtual-array buffers.) May be changed by outer application - * after creating the JPEG object. - */ - long max_memory_to_use; - - /* Maximum allocation request accepted by alloc_large. */ - long max_alloc_chunk; -}; - - -/* Routine signature for application-supplied marker processing methods. - * Need not pass marker code since it is stored in cinfo->unread_marker. - */ -typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo)); - - -/* Declarations for routines called by application. - * The JPP macro hides prototype parameters from compilers that can't cope. - * Note JPP requires double parentheses. - */ - -#ifdef HAVE_PROTOTYPES -#define JPP(arglist) arglist -#else -#define JPP(arglist) () -#endif - - -/* Short forms of external names for systems with brain-damaged linkers. - * We shorten external names to be unique in the first six letters, which - * is good enough for all known systems. - * (If your compiler itself needs names to be unique in less than 15 - * characters, you are out of luck. Get a better compiler.) - */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jpeg_std_error jStdError -#define jpeg_CreateCompress jCreaCompress -#define jpeg_CreateDecompress jCreaDecompress -#define jpeg_destroy_compress jDestCompress -#define jpeg_destroy_decompress jDestDecompress -#define jpeg_stdio_dest jStdDest -#define jpeg_stdio_src jStdSrc -#define jpeg_mem_dest jMemDest -#define jpeg_mem_src jMemSrc -#define jpeg_set_defaults jSetDefaults -#define jpeg_set_colorspace jSetColorspace -#define jpeg_default_colorspace jDefColorspace -#define jpeg_set_quality jSetQuality -#define jpeg_set_linear_quality jSetLQuality -#define jpeg_default_qtables jDefQTables -#define jpeg_add_quant_table jAddQuantTable -#define jpeg_quality_scaling jQualityScaling -#define jpeg_simple_progression jSimProgress -#define jpeg_suppress_tables jSuppressTables -#define jpeg_alloc_quant_table jAlcQTable -#define jpeg_alloc_huff_table jAlcHTable -#define jpeg_start_compress jStrtCompress -#define jpeg_write_scanlines jWrtScanlines -#define jpeg_finish_compress jFinCompress -#define jpeg_calc_jpeg_dimensions jCjpegDimensions -#define jpeg_write_raw_data jWrtRawData -#define jpeg_write_marker jWrtMarker -#define jpeg_write_m_header jWrtMHeader -#define jpeg_write_m_byte jWrtMByte -#define jpeg_write_tables jWrtTables -#define jpeg_read_header jReadHeader -#define jpeg_start_decompress jStrtDecompress -#define jpeg_read_scanlines jReadScanlines -#define jpeg_finish_decompress jFinDecompress -#define jpeg_read_raw_data jReadRawData -#define jpeg_has_multiple_scans jHasMultScn -#define jpeg_start_output jStrtOutput -#define jpeg_finish_output jFinOutput -#define jpeg_input_complete jInComplete -#define jpeg_new_colormap jNewCMap -#define jpeg_consume_input jConsumeInput -#define jpeg_core_output_dimensions jCoreDimensions -#define jpeg_calc_output_dimensions jCalcDimensions -#define jpeg_save_markers jSaveMarkers -#define jpeg_set_marker_processor jSetMarker -#define jpeg_read_coefficients jReadCoefs -#define jpeg_write_coefficients jWrtCoefs -#define jpeg_copy_critical_parameters jCopyCrit -#define jpeg_abort_compress jAbrtCompress -#define jpeg_abort_decompress jAbrtDecompress -#define jpeg_abort jAbort -#define jpeg_destroy jDestroy -#define jpeg_resync_to_restart jResyncRestart -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* Default error-management setup */ -EXTERN(struct jpeg_error_mgr *) jpeg_std_error - JPP((struct jpeg_error_mgr * err)); - -/* Initialization of JPEG compression objects. - * jpeg_create_compress() and jpeg_create_decompress() are the exported - * names that applications should call. These expand to calls on - * jpeg_CreateCompress and jpeg_CreateDecompress with additional information - * passed for version mismatch checking. - * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx. - */ -#define jpeg_create_compress(cinfo) \ - jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \ - (size_t) sizeof(struct jpeg_compress_struct)) -#define jpeg_create_decompress(cinfo) \ - jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \ - (size_t) sizeof(struct jpeg_decompress_struct)) -EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo, - int version, size_t structsize)); -EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo, - int version, size_t structsize)); -/* Destruction of JPEG compression objects */ -EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo)); - -/* Standard data source and destination managers: stdio streams. */ -/* Caller is responsible for opening the file before and closing after. */ -EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile)); -EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile)); - -/* Data source and destination managers: memory buffers. */ -EXTERN(void) jpeg_mem_dest JPP((j_compress_ptr cinfo, - unsigned char ** outbuffer, - unsigned long * outsize)); -EXTERN(void) jpeg_mem_src JPP((j_decompress_ptr cinfo, - unsigned char * inbuffer, - unsigned long insize)); - -/* Default parameter setup for compression */ -EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo)); -/* Compression parameter setup aids */ -EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo, - J_COLOR_SPACE colorspace)); -EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality, - boolean force_baseline)); -EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo, - int scale_factor, - boolean force_baseline)); -EXTERN(void) jpeg_default_qtables JPP((j_compress_ptr cinfo, - boolean force_baseline)); -EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, - boolean force_baseline)); -EXTERN(int) jpeg_quality_scaling JPP((int quality)); -EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo, - boolean suppress)); -EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo)); -EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo)); - -/* Main entry points for compression */ -EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo, - boolean write_all_tables)); -EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION num_lines)); -EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo)); - -/* Precalculate JPEG dimensions for current compression parameters. */ -EXTERN(void) jpeg_calc_jpeg_dimensions JPP((j_compress_ptr cinfo)); - -/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ -EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION num_lines)); - -/* Write a special marker. See libjpeg.txt concerning safe usage. */ -EXTERN(void) jpeg_write_marker - JPP((j_compress_ptr cinfo, int marker, - const JOCTET * dataptr, unsigned int datalen)); -/* Same, but piecemeal. */ -EXTERN(void) jpeg_write_m_header - JPP((j_compress_ptr cinfo, int marker, unsigned int datalen)); -EXTERN(void) jpeg_write_m_byte - JPP((j_compress_ptr cinfo, int val)); - -/* Alternate compression function: just write an abbreviated table file */ -EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo)); - -/* Decompression startup: read start of JPEG datastream to see what's there */ -EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo, - boolean require_image)); -/* Return value is one of: */ -#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ -#define JPEG_HEADER_OK 1 /* Found valid image datastream */ -#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ -/* If you pass require_image = TRUE (normal case), you need not check for - * a TABLES_ONLY return code; an abbreviated file will cause an error exit. - * JPEG_SUSPENDED is only possible if you use a data source module that can - * give a suspension return (the stdio source module doesn't). - */ - -/* Main entry points for decompression */ -EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo)); -EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo, - JSAMPARRAY scanlines, - JDIMENSION max_lines)); -EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo)); - -/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ -EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo, - JSAMPIMAGE data, - JDIMENSION max_lines)); - -/* Additional entry points for buffered-image mode. */ -EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo)); -EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo, - int scan_number)); -EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo)); -EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo)); -EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo)); -/* Return value is one of: */ -/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ -#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ -#define JPEG_REACHED_EOI 2 /* Reached end of image */ -#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ -#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ - -/* Precalculate output dimensions for current decompression parameters. */ -EXTERN(void) jpeg_core_output_dimensions JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo)); - -/* Control saving of COM and APPn markers into marker_list. */ -EXTERN(void) jpeg_save_markers - JPP((j_decompress_ptr cinfo, int marker_code, - unsigned int length_limit)); - -/* Install a special processing method for COM or APPn markers. */ -EXTERN(void) jpeg_set_marker_processor - JPP((j_decompress_ptr cinfo, int marker_code, - jpeg_marker_parser_method routine)); - -/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ -EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo)); -EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo, - jvirt_barray_ptr * coef_arrays)); -EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo, - j_compress_ptr dstinfo)); - -/* If you choose to abort compression or decompression before completing - * jpeg_finish_(de)compress, then you need to clean up to release memory, - * temporary files, etc. You can just call jpeg_destroy_(de)compress - * if you're done with the JPEG object, but if you want to clean it up and - * reuse it, call this: - */ -EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo)); -EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo)); - -/* Generic versions of jpeg_abort and jpeg_destroy that work on either - * flavor of JPEG object. These may be more convenient in some places. - */ -EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo)); -EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo)); - -/* Default restart-marker-resync procedure for use by data source modules */ -EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo, - int desired)); - - -/* These marker codes are exported since applications and data source modules - * are likely to want to use them. - */ - -#define JPEG_RST0 0xD0 /* RST0 marker code */ -#define JPEG_EOI 0xD9 /* EOI marker code */ -#define JPEG_APP0 0xE0 /* APP0 marker code */ -#define JPEG_COM 0xFE /* COM marker code */ - - -/* If we have a brain-damaged compiler that emits warnings (or worse, errors) - * for structure definitions that are never filled in, keep it quiet by - * supplying dummy definitions for the various substructures. - */ - -#ifdef INCOMPLETE_TYPES_BROKEN -#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ -struct jvirt_sarray_control { long dummy; }; -struct jvirt_barray_control { long dummy; }; -struct jpeg_comp_master { long dummy; }; -struct jpeg_c_main_controller { long dummy; }; -struct jpeg_c_prep_controller { long dummy; }; -struct jpeg_c_coef_controller { long dummy; }; -struct jpeg_marker_writer { long dummy; }; -struct jpeg_color_converter { long dummy; }; -struct jpeg_downsampler { long dummy; }; -struct jpeg_forward_dct { long dummy; }; -struct jpeg_entropy_encoder { long dummy; }; -struct jpeg_decomp_master { long dummy; }; -struct jpeg_d_main_controller { long dummy; }; -struct jpeg_d_coef_controller { long dummy; }; -struct jpeg_d_post_controller { long dummy; }; -struct jpeg_input_controller { long dummy; }; -struct jpeg_marker_reader { long dummy; }; -struct jpeg_entropy_decoder { long dummy; }; -struct jpeg_inverse_dct { long dummy; }; -struct jpeg_upsampler { long dummy; }; -struct jpeg_color_deconverter { long dummy; }; -struct jpeg_color_quantizer { long dummy; }; -#endif /* JPEG_INTERNALS */ -#endif /* INCOMPLETE_TYPES_BROKEN */ - - -/* - * The JPEG library modules define JPEG_INTERNALS before including this file. - * The internal structure declarations are read only when that is true. - * Applications using the library should not include jpegint.h, but may wish - * to include jerror.h. - */ - -#ifdef JPEG_INTERNALS -#include "jpegint.h" /* fetch private declarations */ -#include "jerror.h" /* fetch error codes too */ -#endif - -#ifdef __cplusplus -#ifndef DONT_USE_EXTERN_C -} -#endif -#endif - -#endif /* JPEGLIB_H */ diff --git a/jpeg/jpegsr8d.zip b/jpeg/jpegsr8d.zip deleted file mode 100755 index 9a12a90..0000000 Binary files a/jpeg/jpegsr8d.zip and /dev/null differ diff --git a/jpeg/jpegtran.1 b/jpeg/jpegtran.1 deleted file mode 100755 index 0ad1bbc..0000000 --- a/jpeg/jpegtran.1 +++ /dev/null @@ -1,285 +0,0 @@ -.TH JPEGTRAN 1 "28 December 2009" -.SH NAME -jpegtran \- lossless transformation of JPEG files -.SH SYNOPSIS -.B jpegtran -[ -.I options -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B jpegtran -performs various useful transformations of JPEG files. -It can translate the coded representation from one variant of JPEG to another, -for example from baseline JPEG to progressive JPEG or vice versa. It can also -perform some rearrangements of the image data, for example turning an image -from landscape to portrait format by rotation. -.PP -.B jpegtran -works by rearranging the compressed data (DCT coefficients), without -ever fully decoding the image. Therefore, its transformations are lossless: -there is no image degradation at all, which would not be true if you used -.B djpeg -followed by -.B cjpeg -to accomplish the same conversion. But by the same token, -.B jpegtran -cannot perform lossy operations such as changing the image quality. -.PP -.B jpegtran -reads the named JPEG/JFIF file, or the standard input if no file is -named, and produces a JPEG/JFIF file on the standard output. -.SH OPTIONS -All switch names may be abbreviated; for example, -.B \-optimize -may be written -.B \-opt -or -.BR \-o . -Upper and lower case are equivalent. -British spellings are also accepted (e.g., -.BR \-optimise ), -though for brevity these are not mentioned below. -.PP -To specify the coded JPEG representation used in the output file, -.B jpegtran -accepts a subset of the switches recognized by -.BR cjpeg : -.TP -.B \-optimize -Perform optimization of entropy encoding parameters. -.TP -.B \-progressive -Create progressive JPEG file. -.TP -.BI \-restart " N" -Emit a JPEG restart marker every N MCU rows, or every N MCU blocks if "B" is -attached to the number. -.TP -.B \-arithmetic -Use arithmetic coding. -.TP -.BI \-scans " file" -Use the scan script given in the specified text file. -.PP -See -.BR cjpeg (1) -for more details about these switches. -If you specify none of these switches, you get a plain baseline-JPEG output -file. The quality setting and so forth are determined by the input file. -.PP -The image can be losslessly transformed by giving one of these switches: -.TP -.B \-flip horizontal -Mirror image horizontally (left-right). -.TP -.B \-flip vertical -Mirror image vertically (top-bottom). -.TP -.B \-rotate 90 -Rotate image 90 degrees clockwise. -.TP -.B \-rotate 180 -Rotate image 180 degrees. -.TP -.B \-rotate 270 -Rotate image 270 degrees clockwise (or 90 ccw). -.TP -.B \-transpose -Transpose image (across UL-to-LR axis). -.TP -.B \-transverse -Transverse transpose (across UR-to-LL axis). -.IP -The transpose transformation has no restrictions regarding image dimensions. -The other transformations operate rather oddly if the image dimensions are not -a multiple of the iMCU size (usually 8 or 16 pixels), because they can only -transform complete blocks of DCT coefficient data in the desired way. -.IP -.BR jpegtran 's -default behavior when transforming an odd-size image is designed -to preserve exact reversibility and mathematical consistency of the -transformation set. As stated, transpose is able to flip the entire image -area. Horizontal mirroring leaves any partial iMCU column at the right edge -untouched, but is able to flip all rows of the image. Similarly, vertical -mirroring leaves any partial iMCU row at the bottom edge untouched, but is -able to flip all columns. The other transforms can be built up as sequences -of transpose and flip operations; for consistency, their actions on edge -pixels are defined to be the same as the end result of the corresponding -transpose-and-flip sequence. -.IP -For practical use, you may prefer to discard any untransformable edge pixels -rather than having a strange-looking strip along the right and/or bottom edges -of a transformed image. To do this, add the -.B \-trim -switch: -.TP -.B \-trim -Drop non-transformable edge blocks. -.IP -Obviously, a transformation with -.B \-trim -is not reversible, so strictly speaking -.B jpegtran -with this switch is not lossless. Also, the expected mathematical -equivalences between the transformations no longer hold. For example, -.B \-rot 270 -trim -trims only the bottom edge, but -.B \-rot 90 -trim -followed by -.B \-rot 180 -trim -trims both edges. -.IP -If you are only interested in perfect transformation, add the -.B \-perfect -switch: -.TP -.B \-perfect -Fails with an error if the transformation is not perfect. -.IP -For example you may want to do -.IP -.B (jpegtran \-rot 90 -perfect -.I foo.jpg -.B || djpeg -.I foo.jpg -.B | pnmflip \-r90 | cjpeg) -.IP -to do a perfect rotation if available or an approximated one if not. -.PP -We also offer a lossless-crop option, which discards data outside a given -image region but losslessly preserves what is inside. Like the rotate and -flip transforms, lossless crop is restricted by the current JPEG format: the -upper left corner of the selected region must fall on an iMCU boundary. If -this does not hold for the given crop parameters, we silently move the upper -left corner up and/or left to make it so, simultaneously increasing the region -dimensions to keep the lower right crop corner unchanged. (Thus, the output -image covers at least the requested region, but may cover more.) - -The image can be losslessly cropped by giving the switch: -.TP -.B \-crop WxH+X+Y -Crop to a rectangular subarea of width W, height H starting at point X,Y. -.PP -Other not-strictly-lossless transformation switches are: -.TP -.B \-grayscale -Force grayscale output. -.IP -This option discards the chrominance channels if the input image is YCbCr -(ie, a standard color JPEG), resulting in a grayscale JPEG file. The -luminance channel is preserved exactly, so this is a better method of reducing -to grayscale than decompression, conversion, and recompression. This switch -is particularly handy for fixing a monochrome picture that was mistakenly -encoded as a color JPEG. (In such a case, the space savings from getting rid -of the near-empty chroma channels won't be large; but the decoding time for -a grayscale JPEG is substantially less than that for a color JPEG.) -.TP -.BI \-scale " M/N" -Scale the output image by a factor M/N. -.IP -Currently supported scale factors are M/N with all M from 1 to 16, where N is -the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, -then M specifies the DCT scaled size to be applied on the given input. For -baseline JPEG this is equivalent to M/8 scaling, since the source DCT size -for baseline JPEG is 8. -.B Caution: -An implementation of the JPEG SmartScale extension is required for this -feature. SmartScale enabled JPEG is not yet widely implemented, so many -decoders will be unable to view a SmartScale extended JPEG file at all. -.PP -.B jpegtran -also recognizes these switches that control what to do with "extra" markers, -such as comment blocks: -.TP -.B \-copy none -Copy no extra markers from source file. This setting suppresses all -comments and other excess baggage present in the source file. -.TP -.B \-copy comments -Copy only comment markers. This setting copies comments from the source file, -but discards any other inessential (for image display) data. -.TP -.B \-copy all -Copy all extra markers. This setting preserves miscellaneous markers -found in the source file, such as JFIF thumbnails, Exif data, and Photoshop -settings. In some files these extra markers can be sizable. -.IP -The default behavior is -.BR "\-copy comments" . -(Note: in IJG releases v6 and v6a, -.B jpegtran -always did the equivalent of -.BR "\-copy none" .) -.PP -Additional switches recognized by jpegtran are: -.TP -.BI \-maxmemory " N" -Set limit for amount of memory to use in processing large images. Value is -in thousands of bytes, or millions of bytes if "M" is attached to the -number. For example, -.B \-max 4m -selects 4000000 bytes. If more space is needed, temporary files will be used. -.TP -.BI \-outfile " name" -Send output image to the named file, not to standard output. -.TP -.B \-verbose -Enable debug printout. More -.BR \-v 's -give more output. Also, version information is printed at startup. -.TP -.B \-debug -Same as -.BR \-verbose . -.SH EXAMPLES -.LP -This example converts a baseline JPEG file to progressive form: -.IP -.B jpegtran \-progressive -.I foo.jpg -.B > -.I fooprog.jpg -.PP -This example rotates an image 90 degrees clockwise, discarding any -unrotatable edge pixels: -.IP -.B jpegtran \-rot 90 -trim -.I foo.jpg -.B > -.I foo90.jpg -.SH ENVIRONMENT -.TP -.B JPEGMEM -If this environment variable is set, its value is the default memory limit. -The value is specified as described for the -.B \-maxmemory -switch. -.B JPEGMEM -overrides the default value specified when the program was compiled, and -itself is overridden by an explicit -.BR \-maxmemory . -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR rdjpgcom (1), -.BR wrjpgcom (1) -.br -Wallace, Gregory K. "The JPEG Still Picture Compression Standard", -Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44. -.SH AUTHOR -Independent JPEG Group -.SH BUGS -The transform options can't transform odd-size images perfectly. Use -.B \-trim -or -.B \-perfect -if you don't like the results. -.PP -The entire image is read into memory and then written out again, even in -cases where this isn't really necessary. Expect swapping on large images, -especially when using the more complex transform options. diff --git a/jpeg/jpegtran.c b/jpeg/jpegtran.c deleted file mode 100755 index e539e91..0000000 --- a/jpeg/jpegtran.c +++ /dev/null @@ -1,560 +0,0 @@ -/* - * jpegtran.c - * - * Copyright (C) 1995-2011, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a command-line user interface for JPEG transcoding. - * It is very similar to cjpeg.c, and partly to djpeg.c, but provides - * lossless transcoding between different JPEG file formats. It also - * provides some lossless and sort-of-lossless transformations of JPEG data. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include "transupp.h" /* Support routines for jpegtran */ -#include "jversion.h" /* for version message */ - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - - -/* - * Argument-parsing code. - * The switch parser is designed to be useful with DOS-style command line - * syntax, ie, intermixed switches and file names, where only the switches - * to the left of a given file name affect processing of that file. - * The main program in this file doesn't actually use this capability... - */ - - -static const char * progname; /* program name for error messages */ -static char * outfilename; /* for -outfile switch */ -static char * scaleoption; /* -scale switch */ -static JCOPY_OPTION copyoption; /* -copy switch */ -static jpeg_transform_info transformoption; /* image transformation options */ - - -LOCAL(void) -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -copy none Copy no extra markers from source file\n"); - fprintf(stderr, " -copy comments Copy only comment markers (default)\n"); - fprintf(stderr, " -copy all Copy all extra markers\n"); -#ifdef ENTROPY_OPT_SUPPORTED - fprintf(stderr, " -optimize Optimize Huffman table (smaller file, but slow compression)\n"); -#endif -#ifdef C_PROGRESSIVE_SUPPORTED - fprintf(stderr, " -progressive Create progressive JPEG file\n"); -#endif - fprintf(stderr, "Switches for modifying the image:\n"); -#if TRANSFORMS_SUPPORTED - fprintf(stderr, " -crop WxH+X+Y Crop to a rectangular subarea\n"); - fprintf(stderr, " -grayscale Reduce to grayscale (omit color data)\n"); - fprintf(stderr, " -flip [horizontal|vertical] Mirror image (left-right or top-bottom)\n"); - fprintf(stderr, " -perfect Fail if there is non-transformable edge blocks\n"); - fprintf(stderr, " -rotate [90|180|270] Rotate image (degrees clockwise)\n"); -#endif - fprintf(stderr, " -scale M/N Scale output image by fraction M/N, eg, 1/8\n"); -#if TRANSFORMS_SUPPORTED - fprintf(stderr, " -transpose Transpose image\n"); - fprintf(stderr, " -transverse Transverse transpose image\n"); - fprintf(stderr, " -trim Drop non-transformable edge blocks\n"); -#endif - fprintf(stderr, "Switches for advanced users:\n"); -#ifdef C_ARITH_CODING_SUPPORTED - fprintf(stderr, " -arithmetic Use arithmetic coding\n"); -#endif - fprintf(stderr, " -restart N Set restart interval in rows, or in blocks with B\n"); - fprintf(stderr, " -maxmemory N Maximum memory to use (in kbytes)\n"); - fprintf(stderr, " -outfile name Specify name for output file\n"); - fprintf(stderr, " -verbose or -debug Emit debug output\n"); - fprintf(stderr, "Switches for wizards:\n"); -#ifdef C_MULTISCAN_FILES_SUPPORTED - fprintf(stderr, " -scans file Create multi-scan JPEG per script file\n"); -#endif - exit(EXIT_FAILURE); -} - - -LOCAL(void) -select_transform (JXFORM_CODE transform) -/* Silly little routine to detect multiple transform options, - * which we can't handle. - */ -{ -#if TRANSFORMS_SUPPORTED - if (transformoption.transform == JXFORM_NONE || - transformoption.transform == transform) { - transformoption.transform = transform; - } else { - fprintf(stderr, "%s: can only do one image transformation at a time\n", - progname); - usage(); - } -#else - fprintf(stderr, "%s: sorry, image transformation was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif -} - - -LOCAL(int) -parse_switches (j_compress_ptr cinfo, int argc, char **argv, - int last_file_arg_seen, boolean for_real) -/* Parse optional switches. - * Returns argv[] index of first file-name argument (== argc if none). - * Any file names with indexes <= last_file_arg_seen are ignored; - * they have presumably been processed in a previous iteration. - * (Pass 0 for last_file_arg_seen on the first or only iteration.) - * for_real is FALSE on the first (dummy) pass; we may skip any expensive - * processing. - */ -{ - int argn; - char * arg; - boolean simple_progressive; - char * scansarg = NULL; /* saves -scans parm if any */ - - /* Set up default JPEG parameters. */ - simple_progressive = FALSE; - outfilename = NULL; - scaleoption = NULL; - copyoption = JCOPYOPT_DEFAULT; - transformoption.transform = JXFORM_NONE; - transformoption.perfect = FALSE; - transformoption.trim = FALSE; - transformoption.force_grayscale = FALSE; - transformoption.crop = FALSE; - cinfo->err->trace_level = 0; - - /* Scan command line options, adjust parameters */ - - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (*arg != '-') { - /* Not a switch, must be a file name argument */ - if (argn <= last_file_arg_seen) { - outfilename = NULL; /* -outfile applies to just one input file */ - continue; /* ignore this name if previously processed */ - } - break; /* else done parsing switches */ - } - arg++; /* advance past switch marker character */ - - if (keymatch(arg, "arithmetic", 1)) { - /* Use arithmetic coding. */ -#ifdef C_ARITH_CODING_SUPPORTED - cinfo->arith_code = TRUE; -#else - fprintf(stderr, "%s: sorry, arithmetic coding not supported\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "copy", 2)) { - /* Select which extra markers to copy. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "none", 1)) { - copyoption = JCOPYOPT_NONE; - } else if (keymatch(argv[argn], "comments", 1)) { - copyoption = JCOPYOPT_COMMENTS; - } else if (keymatch(argv[argn], "all", 1)) { - copyoption = JCOPYOPT_ALL; - } else - usage(); - - } else if (keymatch(arg, "crop", 2)) { - /* Perform lossless cropping. */ -#if TRANSFORMS_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - if (! jtransform_parse_crop_spec(&transformoption, argv[argn])) { - fprintf(stderr, "%s: bogus -crop argument '%s'\n", - progname, argv[argn]); - exit(EXIT_FAILURE); - } -#else - select_transform(JXFORM_NONE); /* force an error */ -#endif - - } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) { - /* Enable debug printouts. */ - /* On first -d, print version identification */ - static boolean printed_version = FALSE; - - if (! printed_version) { - fprintf(stderr, "Independent JPEG Group's JPEGTRAN, version %s\n%s\n", - JVERSION, JCOPYRIGHT); - printed_version = TRUE; - } - cinfo->err->trace_level++; - - } else if (keymatch(arg, "flip", 1)) { - /* Mirror left-right or top-bottom. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "horizontal", 1)) - select_transform(JXFORM_FLIP_H); - else if (keymatch(argv[argn], "vertical", 1)) - select_transform(JXFORM_FLIP_V); - else - usage(); - - } else if (keymatch(arg, "grayscale", 1) || keymatch(arg, "greyscale",1)) { - /* Force to grayscale. */ -#if TRANSFORMS_SUPPORTED - transformoption.force_grayscale = TRUE; -#else - select_transform(JXFORM_NONE); /* force an error */ -#endif - - } else if (keymatch(arg, "maxmemory", 3)) { - /* Maximum memory in Kb (or Mb with 'm'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (ch == 'm' || ch == 'M') - lval *= 1000L; - cinfo->mem->max_memory_to_use = lval * 1000L; - - } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) { - /* Enable entropy parm optimization. */ -#ifdef ENTROPY_OPT_SUPPORTED - cinfo->optimize_coding = TRUE; -#else - fprintf(stderr, "%s: sorry, entropy optimization was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "outfile", 4)) { - /* Set output file name. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - outfilename = argv[argn]; /* save it away for later use */ - - } else if (keymatch(arg, "perfect", 2)) { - /* Fail if there is any partial edge MCUs that the transform can't - * handle. */ - transformoption.perfect = TRUE; - - } else if (keymatch(arg, "progressive", 2)) { - /* Select simple progressive mode. */ -#ifdef C_PROGRESSIVE_SUPPORTED - simple_progressive = TRUE; - /* We must postpone execution until num_components is known. */ -#else - fprintf(stderr, "%s: sorry, progressive output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "restart", 1)) { - /* Restart interval in MCU rows (or in MCUs with 'b'). */ - long lval; - char ch = 'x'; - - if (++argn >= argc) /* advance to next argument */ - usage(); - if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1) - usage(); - if (lval < 0 || lval > 65535L) - usage(); - if (ch == 'b' || ch == 'B') { - cinfo->restart_interval = (unsigned int) lval; - cinfo->restart_in_rows = 0; /* else prior '-restart n' overrides me */ - } else { - cinfo->restart_in_rows = (int) lval; - /* restart_interval will be computed during startup */ - } - - } else if (keymatch(arg, "rotate", 2)) { - /* Rotate 90, 180, or 270 degrees (measured clockwise). */ - if (++argn >= argc) /* advance to next argument */ - usage(); - if (keymatch(argv[argn], "90", 2)) - select_transform(JXFORM_ROT_90); - else if (keymatch(argv[argn], "180", 3)) - select_transform(JXFORM_ROT_180); - else if (keymatch(argv[argn], "270", 3)) - select_transform(JXFORM_ROT_270); - else - usage(); - - } else if (keymatch(arg, "scale", 4)) { - /* Scale the output image by a fraction M/N. */ - if (++argn >= argc) /* advance to next argument */ - usage(); - scaleoption = argv[argn]; - /* We must postpone processing until decompression startup. */ - - } else if (keymatch(arg, "scans", 1)) { - /* Set scan script. */ -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (++argn >= argc) /* advance to next argument */ - usage(); - scansarg = argv[argn]; - /* We must postpone reading the file in case -progressive appears. */ -#else - fprintf(stderr, "%s: sorry, multi-scan output was not compiled\n", - progname); - exit(EXIT_FAILURE); -#endif - - } else if (keymatch(arg, "transpose", 1)) { - /* Transpose (across UL-to-LR axis). */ - select_transform(JXFORM_TRANSPOSE); - - } else if (keymatch(arg, "transverse", 6)) { - /* Transverse transpose (across UR-to-LL axis). */ - select_transform(JXFORM_TRANSVERSE); - - } else if (keymatch(arg, "trim", 3)) { - /* Trim off any partial edge MCUs that the transform can't handle. */ - transformoption.trim = TRUE; - - } else { - usage(); /* bogus switch */ - } - } - - /* Post-switch-scanning cleanup */ - - if (for_real) { - -#ifdef C_PROGRESSIVE_SUPPORTED - if (simple_progressive) /* process -progressive; -scans can override */ - jpeg_simple_progression(cinfo); -#endif - -#ifdef C_MULTISCAN_FILES_SUPPORTED - if (scansarg != NULL) /* process -scans if it was present */ - if (! read_scan_script(cinfo, scansarg)) - usage(); -#endif - } - - return argn; /* return index of next arg (file name) */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - struct jpeg_decompress_struct srcinfo; - struct jpeg_compress_struct dstinfo; - struct jpeg_error_mgr jsrcerr, jdsterr; -#ifdef PROGRESS_REPORT - struct cdjpeg_progress_mgr progress; -#endif - jvirt_barray_ptr * src_coef_arrays; - jvirt_barray_ptr * dst_coef_arrays; - int file_index; - /* We assume all-in-memory processing and can therefore use only a - * single file pointer for sequential input and output operation. - */ - FILE * fp; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "jpegtran"; /* in case C library doesn't provide it */ - - /* Initialize the JPEG decompression object with default error handling. */ - srcinfo.err = jpeg_std_error(&jsrcerr); - jpeg_create_decompress(&srcinfo); - /* Initialize the JPEG compression object with default error handling. */ - dstinfo.err = jpeg_std_error(&jdsterr); - jpeg_create_compress(&dstinfo); - - /* Now safe to enable signal catcher. - * Note: we assume only the decompression object will have virtual arrays. - */ -#ifdef NEED_SIGNAL_CATCHER - enable_signal_catcher((j_common_ptr) &srcinfo); -#endif - - /* Scan command line to find file names. - * It is convenient to use just one switch-parsing routine, but the switch - * values read here are mostly ignored; we will rescan the switches after - * opening the input file. Also note that most of the switches affect the - * destination JPEG object, so we parse into that and then copy over what - * needs to affects the source too. - */ - - file_index = parse_switches(&dstinfo, argc, argv, 0, FALSE); - jsrcerr.trace_level = jdsterr.trace_level; - srcinfo.mem->max_memory_to_use = dstinfo.mem->max_memory_to_use; - -#ifdef TWO_FILE_COMMANDLINE - /* Must have either -outfile switch or explicit output file name */ - if (outfilename == NULL) { - if (file_index != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - outfilename = argv[file_index+1]; - } else { - if (file_index != argc-1) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - } -#else - /* Unix style: expect zero or one file name */ - if (file_index < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } -#endif /* TWO_FILE_COMMANDLINE */ - - /* Open the input file. */ - if (file_index < argc) { - if ((fp = fopen(argv[file_index], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s for reading\n", progname, argv[file_index]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ - fp = read_stdin(); - } - -#ifdef PROGRESS_REPORT - start_progress_monitor((j_common_ptr) &dstinfo, &progress); -#endif - - /* Specify data source for decompression */ - jpeg_stdio_src(&srcinfo, fp); - - /* Enable saving of extra markers that we want to copy */ - jcopy_markers_setup(&srcinfo, copyoption); - - /* Read file header */ - (void) jpeg_read_header(&srcinfo, TRUE); - - /* Adjust default decompression parameters */ - if (scaleoption != NULL) - if (sscanf(scaleoption, "%d/%d", - &srcinfo.scale_num, &srcinfo.scale_denom) < 1) - usage(); - - /* Any space needed by a transform option must be requested before - * jpeg_read_coefficients so that memory allocation will be done right. - */ -#if TRANSFORMS_SUPPORTED - /* Fail right away if -perfect is given and transformation is not perfect. - */ - if (!jtransform_request_workspace(&srcinfo, &transformoption)) { - fprintf(stderr, "%s: transformation is not perfect\n", progname); - exit(EXIT_FAILURE); - } -#endif - - /* Read source file as DCT coefficients */ - src_coef_arrays = jpeg_read_coefficients(&srcinfo); - - /* Initialize destination compression parameters from source values */ - jpeg_copy_critical_parameters(&srcinfo, &dstinfo); - - /* Adjust destination parameters if required by transform options; - * also find out which set of coefficient arrays will hold the output. - */ -#if TRANSFORMS_SUPPORTED - dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo, - src_coef_arrays, - &transformoption); -#else - dst_coef_arrays = src_coef_arrays; -#endif - - /* Close input file, if we opened it. - * Note: we assume that jpeg_read_coefficients consumed all input - * until JPEG_REACHED_EOI, and that jpeg_finish_decompress will - * only consume more while (! cinfo->inputctl->eoi_reached). - * We cannot call jpeg_finish_decompress here since we still need the - * virtual arrays allocated from the source object for processing. - */ - if (fp != stdin) - fclose(fp); - - /* Open the output file. */ - if (outfilename != NULL) { - if ((fp = fopen(outfilename, WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s for writing\n", progname, outfilename); - exit(EXIT_FAILURE); - } - } else { - /* default output file is stdout */ - fp = write_stdout(); - } - - /* Adjust default compression parameters by re-parsing the options */ - file_index = parse_switches(&dstinfo, argc, argv, 0, TRUE); - - /* Specify data destination for compression */ - jpeg_stdio_dest(&dstinfo, fp); - - /* Start compressor (note no image data is actually written here) */ - jpeg_write_coefficients(&dstinfo, dst_coef_arrays); - - /* Copy to the output file any extra markers that we want to preserve */ - jcopy_markers_execute(&srcinfo, &dstinfo, copyoption); - - /* Execute image transformation, if any */ -#if TRANSFORMS_SUPPORTED - jtransform_execute_transformation(&srcinfo, &dstinfo, - src_coef_arrays, - &transformoption); -#endif - - /* Finish compression and release memory */ - jpeg_finish_compress(&dstinfo); - jpeg_destroy_compress(&dstinfo); - (void) jpeg_finish_decompress(&srcinfo); - jpeg_destroy_decompress(&srcinfo); - - /* Close output file, if we opened it */ - if (fp != stdout) - fclose(fp); - -#ifdef PROGRESS_REPORT - end_progress_monitor((j_common_ptr) &dstinfo); -#endif - - /* All done. */ - exit(jsrcerr.num_warnings + jdsterr.num_warnings ?EXIT_WARNING:EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpeg/jquant1.c b/jpeg/jquant1.c deleted file mode 100755 index 9d11f70..0000000 --- a/jpeg/jquant1.c +++ /dev/null @@ -1,857 +0,0 @@ -/* - * jquant1.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains 1-pass color quantization (color mapping) routines. - * These routines provide mapping to a fixed color map using equally spaced - * color values. Optional Floyd-Steinberg or ordered dithering is available. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef QUANT_1PASS_SUPPORTED - - -/* - * The main purpose of 1-pass quantization is to provide a fast, if not very - * high quality, colormapped output capability. A 2-pass quantizer usually - * gives better visual quality; however, for quantized grayscale output this - * quantizer is perfectly adequate. Dithering is highly recommended with this - * quantizer, though you can turn it off if you really want to. - * - * In 1-pass quantization the colormap must be chosen in advance of seeing the - * image. We use a map consisting of all combinations of Ncolors[i] color - * values for the i'th component. The Ncolors[] values are chosen so that - * their product, the total number of colors, is no more than that requested. - * (In most cases, the product will be somewhat less.) - * - * Since the colormap is orthogonal, the representative value for each color - * component can be determined without considering the other components; - * then these indexes can be combined into a colormap index by a standard - * N-dimensional-array-subscript calculation. Most of the arithmetic involved - * can be precalculated and stored in the lookup table colorindex[]. - * colorindex[i][j] maps pixel value j in component i to the nearest - * representative value (grid plane) for that component; this index is - * multiplied by the array stride for component i, so that the - * index of the colormap entry closest to a given pixel value is just - * sum( colorindex[component-number][pixel-component-value] ) - * Aside from being fast, this scheme allows for variable spacing between - * representative values with no additional lookup cost. - * - * If gamma correction has been applied in color conversion, it might be wise - * to adjust the color grid spacing so that the representative colors are - * equidistant in linear space. At this writing, gamma correction is not - * implemented by jdcolor, so nothing is done here. - */ - - -/* Declarations for ordered dithering. - * - * We use a standard 16x16 ordered dither array. The basic concept of ordered - * dithering is described in many references, for instance Dale Schumacher's - * chapter II.2 of Graphics Gems II (James Arvo, ed. Academic Press, 1991). - * In place of Schumacher's comparisons against a "threshold" value, we add a - * "dither" value to the input pixel and then round the result to the nearest - * output value. The dither value is equivalent to (0.5 - threshold) times - * the distance between output values. For ordered dithering, we assume that - * the output colors are equally spaced; if not, results will probably be - * worse, since the dither may be too much or too little at a given point. - * - * The normal calculation would be to form pixel value + dither, range-limit - * this to 0..MAXJSAMPLE, and then index into the colorindex table as usual. - * We can skip the separate range-limiting step by extending the colorindex - * table in both directions. - */ - -#define ODITHER_SIZE 16 /* dimension of dither matrix */ -/* NB: if ODITHER_SIZE is not a power of 2, ODITHER_MASK uses will break */ -#define ODITHER_CELLS (ODITHER_SIZE*ODITHER_SIZE) /* # cells in matrix */ -#define ODITHER_MASK (ODITHER_SIZE-1) /* mask for wrapping around counters */ - -typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]; -typedef int (*ODITHER_MATRIX_PTR)[ODITHER_SIZE]; - -static const UINT8 base_dither_matrix[ODITHER_SIZE][ODITHER_SIZE] = { - /* Bayer's order-4 dither array. Generated by the code given in - * Stephen Hawley's article "Ordered Dithering" in Graphics Gems I. - * The values in this array must range from 0 to ODITHER_CELLS-1. - */ - { 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 }, - { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 }, - { 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 }, - { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 }, - { 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 }, - { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 }, - { 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 }, - { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 }, - { 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 }, - { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 }, - { 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 }, - { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 }, - { 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 }, - { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 }, - { 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 }, - { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 } -}; - - -/* Declarations for Floyd-Steinberg dithering. - * - * Errors are accumulated into the array fserrors[], at a resolution of - * 1/16th of a pixel count. The error at a given pixel is propagated - * to its not-yet-processed neighbors using the standard F-S fractions, - * ... (here) 7/16 - * 3/16 5/16 1/16 - * We work left-to-right on even rows, right-to-left on odd rows. - * - * We can get away with a single array (holding one row's worth of errors) - * by using it to store the current row's errors at pixel columns not yet - * processed, but the next row's errors at columns already processed. We - * need only a few extra variables to hold the errors immediately around the - * current column. (If we are lucky, those variables are in registers, but - * even if not, they're probably cheaper to access than array elements are.) - * - * The fserrors[] array is indexed [component#][position]. - * We provide (#columns + 2) entries per component; the extra entry at each - * end saves us from special-casing the first and last pixels. - * - * Note: on a wide image, we might not have enough room in a PC's near data - * segment to hold the error array; so it is allocated with alloc_large. - */ - -#if BITS_IN_JSAMPLE == 8 -typedef INT16 FSERROR; /* 16 bits should be enough */ -typedef int LOCFSERROR; /* use 'int' for calculation temps */ -#else -typedef INT32 FSERROR; /* may need more than 16 bits */ -typedef INT32 LOCFSERROR; /* be sure calculation temps are big enough */ -#endif - -typedef FSERROR FAR *FSERRPTR; /* pointer to error array (in FAR storage!) */ - - -/* Private subobject */ - -#define MAX_Q_COMPS 4 /* max components I can handle */ - -typedef struct { - struct jpeg_color_quantizer pub; /* public fields */ - - /* Initially allocated colormap is saved here */ - JSAMPARRAY sv_colormap; /* The color map as a 2-D pixel array */ - int sv_actual; /* number of entries in use */ - - JSAMPARRAY colorindex; /* Precomputed mapping for speed */ - /* colorindex[i][j] = index of color closest to pixel value j in component i, - * premultiplied as described above. Since colormap indexes must fit into - * JSAMPLEs, the entries of this array will too. - */ - boolean is_padded; /* is the colorindex padded for odither? */ - - int Ncolors[MAX_Q_COMPS]; /* # of values alloced to each component */ - - /* Variables for ordered dithering */ - int row_index; /* cur row's vertical index in dither matrix */ - ODITHER_MATRIX_PTR odither[MAX_Q_COMPS]; /* one dither array per component */ - - /* Variables for Floyd-Steinberg dithering */ - FSERRPTR fserrors[MAX_Q_COMPS]; /* accumulated errors */ - boolean on_odd_row; /* flag to remember which row we are on */ -} my_cquantizer; - -typedef my_cquantizer * my_cquantize_ptr; - - -/* - * Policy-making subroutines for create_colormap and create_colorindex. - * These routines determine the colormap to be used. The rest of the module - * only assumes that the colormap is orthogonal. - * - * * select_ncolors decides how to divvy up the available colors - * among the components. - * * output_value defines the set of representative values for a component. - * * largest_input_value defines the mapping from input values to - * representative values for a component. - * Note that the latter two routines may impose different policies for - * different components, though this is not currently done. - */ - - -LOCAL(int) -select_ncolors (j_decompress_ptr cinfo, int Ncolors[]) -/* Determine allocation of desired colors to components, */ -/* and fill in Ncolors[] array to indicate choice. */ -/* Return value is total number of colors (product of Ncolors[] values). */ -{ - int nc = cinfo->out_color_components; /* number of color components */ - int max_colors = cinfo->desired_number_of_colors; - int total_colors, iroot, i, j; - boolean changed; - long temp; - static const int RGB_order[3] = { RGB_GREEN, RGB_RED, RGB_BLUE }; - - /* We can allocate at least the nc'th root of max_colors per component. */ - /* Compute floor(nc'th root of max_colors). */ - iroot = 1; - do { - iroot++; - temp = iroot; /* set temp = iroot ** nc */ - for (i = 1; i < nc; i++) - temp *= iroot; - } while (temp <= (long) max_colors); /* repeat till iroot exceeds root */ - iroot--; /* now iroot = floor(root) */ - - /* Must have at least 2 color values per component */ - if (iroot < 2) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, (int) temp); - - /* Initialize to iroot color values for each component */ - total_colors = 1; - for (i = 0; i < nc; i++) { - Ncolors[i] = iroot; - total_colors *= iroot; - } - /* We may be able to increment the count for one or more components without - * exceeding max_colors, though we know not all can be incremented. - * Sometimes, the first component can be incremented more than once! - * (Example: for 16 colors, we start at 2*2*2, go to 3*2*2, then 4*2*2.) - * In RGB colorspace, try to increment G first, then R, then B. - */ - do { - changed = FALSE; - for (i = 0; i < nc; i++) { - j = (cinfo->out_color_space == JCS_RGB ? RGB_order[i] : i); - /* calculate new total_colors if Ncolors[j] is incremented */ - temp = total_colors / Ncolors[j]; - temp *= Ncolors[j]+1; /* done in long arith to avoid oflo */ - if (temp > (long) max_colors) - break; /* won't fit, done with this pass */ - Ncolors[j]++; /* OK, apply the increment */ - total_colors = (int) temp; - changed = TRUE; - } - } while (changed); - - return total_colors; -} - - -LOCAL(int) -output_value (j_decompress_ptr cinfo, int ci, int j, int maxj) -/* Return j'th output value, where j will range from 0 to maxj */ -/* The output values must fall in 0..MAXJSAMPLE in increasing order */ -{ - /* We always provide values 0 and MAXJSAMPLE for each component; - * any additional values are equally spaced between these limits. - * (Forcing the upper and lower values to the limits ensures that - * dithering can't produce a color outside the selected gamut.) - */ - return (int) (((INT32) j * MAXJSAMPLE + maxj/2) / maxj); -} - - -LOCAL(int) -largest_input_value (j_decompress_ptr cinfo, int ci, int j, int maxj) -/* Return largest input value that should map to j'th output value */ -/* Must have largest(j=0) >= 0, and largest(j=maxj) >= MAXJSAMPLE */ -{ - /* Breakpoints are halfway between values returned by output_value */ - return (int) (((INT32) (2*j + 1) * MAXJSAMPLE + maxj) / (2*maxj)); -} - - -/* - * Create the colormap. - */ - -LOCAL(void) -create_colormap (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPARRAY colormap; /* Created colormap */ - int total_colors; /* Number of distinct output colors */ - int i,j,k, nci, blksize, blkdist, ptr, val; - - /* Select number of colors for each component */ - total_colors = select_ncolors(cinfo, cquantize->Ncolors); - - /* Report selected color counts */ - if (cinfo->out_color_components == 3) - TRACEMS4(cinfo, 1, JTRC_QUANT_3_NCOLORS, - total_colors, cquantize->Ncolors[0], - cquantize->Ncolors[1], cquantize->Ncolors[2]); - else - TRACEMS1(cinfo, 1, JTRC_QUANT_NCOLORS, total_colors); - - /* Allocate and fill in the colormap. */ - /* The colors are ordered in the map in standard row-major order, */ - /* i.e. rightmost (highest-indexed) color changes most rapidly. */ - - colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) total_colors, (JDIMENSION) cinfo->out_color_components); - - /* blksize is number of adjacent repeated entries for a component */ - /* blkdist is distance between groups of identical entries for a component */ - blkdist = total_colors; - - for (i = 0; i < cinfo->out_color_components; i++) { - /* fill in colormap entries for i'th color component */ - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - blksize = blkdist / nci; - for (j = 0; j < nci; j++) { - /* Compute j'th output value (out of nci) for component */ - val = output_value(cinfo, i, j, nci-1); - /* Fill in all colormap entries that have this value of this component */ - for (ptr = j * blksize; ptr < total_colors; ptr += blkdist) { - /* fill in blksize entries beginning at ptr */ - for (k = 0; k < blksize; k++) - colormap[i][ptr+k] = (JSAMPLE) val; - } - } - blkdist = blksize; /* blksize of this color is blkdist of next */ - } - - /* Save the colormap in private storage, - * where it will survive color quantization mode changes. - */ - cquantize->sv_colormap = colormap; - cquantize->sv_actual = total_colors; -} - - -/* - * Create the color index table. - */ - -LOCAL(void) -create_colorindex (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPROW indexptr; - int i,j,k, nci, blksize, val, pad; - - /* For ordered dither, we pad the color index tables by MAXJSAMPLE in - * each direction (input index values can be -MAXJSAMPLE .. 2*MAXJSAMPLE). - * This is not necessary in the other dithering modes. However, we - * flag whether it was done in case user changes dithering mode. - */ - if (cinfo->dither_mode == JDITHER_ORDERED) { - pad = MAXJSAMPLE*2; - cquantize->is_padded = TRUE; - } else { - pad = 0; - cquantize->is_padded = FALSE; - } - - cquantize->colorindex = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (MAXJSAMPLE+1 + pad), - (JDIMENSION) cinfo->out_color_components); - - /* blksize is number of adjacent repeated entries for a component */ - blksize = cquantize->sv_actual; - - for (i = 0; i < cinfo->out_color_components; i++) { - /* fill in colorindex entries for i'th color component */ - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - blksize = blksize / nci; - - /* adjust colorindex pointers to provide padding at negative indexes. */ - if (pad) - cquantize->colorindex[i] += MAXJSAMPLE; - - /* in loop, val = index of current output value, */ - /* and k = largest j that maps to current val */ - indexptr = cquantize->colorindex[i]; - val = 0; - k = largest_input_value(cinfo, i, 0, nci-1); - for (j = 0; j <= MAXJSAMPLE; j++) { - while (j > k) /* advance val if past boundary */ - k = largest_input_value(cinfo, i, ++val, nci-1); - /* premultiply so that no multiplication needed in main processing */ - indexptr[j] = (JSAMPLE) (val * blksize); - } - /* Pad at both ends if necessary */ - if (pad) - for (j = 1; j <= MAXJSAMPLE; j++) { - indexptr[-j] = indexptr[0]; - indexptr[MAXJSAMPLE+j] = indexptr[MAXJSAMPLE]; - } - } -} - - -/* - * Create an ordered-dither array for a component having ncolors - * distinct output values. - */ - -LOCAL(ODITHER_MATRIX_PTR) -make_odither_array (j_decompress_ptr cinfo, int ncolors) -{ - ODITHER_MATRIX_PTR odither; - int j,k; - INT32 num,den; - - odither = (ODITHER_MATRIX_PTR) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ODITHER_MATRIX)); - /* The inter-value distance for this color is MAXJSAMPLE/(ncolors-1). - * Hence the dither value for the matrix cell with fill order f - * (f=0..N-1) should be (N-1-2*f)/(2*N) * MAXJSAMPLE/(ncolors-1). - * On 16-bit-int machine, be careful to avoid overflow. - */ - den = 2 * ODITHER_CELLS * ((INT32) (ncolors - 1)); - for (j = 0; j < ODITHER_SIZE; j++) { - for (k = 0; k < ODITHER_SIZE; k++) { - num = ((INT32) (ODITHER_CELLS-1 - 2*((int)base_dither_matrix[j][k]))) - * MAXJSAMPLE; - /* Ensure round towards zero despite C's lack of consistency - * about rounding negative values in integer division... - */ - odither[j][k] = (int) (num<0 ? -((-num)/den) : num/den); - } - } - return odither; -} - - -/* - * Create the ordered-dither tables. - * Components having the same number of representative colors may - * share a dither table. - */ - -LOCAL(void) -create_odither_tables (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - ODITHER_MATRIX_PTR odither; - int i, j, nci; - - for (i = 0; i < cinfo->out_color_components; i++) { - nci = cquantize->Ncolors[i]; /* # of distinct values for this color */ - odither = NULL; /* search for matching prior component */ - for (j = 0; j < i; j++) { - if (nci == cquantize->Ncolors[j]) { - odither = cquantize->odither[j]; - break; - } - } - if (odither == NULL) /* need a new table? */ - odither = make_odither_array(cinfo, nci); - cquantize->odither[i] = odither; - } -} - - -/* - * Map some rows of pixels to the output colormapped representation. - */ - -METHODDEF(void) -color_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - JSAMPARRAY colorindex = cquantize->colorindex; - register int pixcode, ci; - register JSAMPROW ptrin, ptrout; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - register int nc = cinfo->out_color_components; - - for (row = 0; row < num_rows; row++) { - ptrin = input_buf[row]; - ptrout = output_buf[row]; - for (col = width; col > 0; col--) { - pixcode = 0; - for (ci = 0; ci < nc; ci++) { - pixcode += GETJSAMPLE(colorindex[ci][GETJSAMPLE(*ptrin++)]); - } - *ptrout++ = (JSAMPLE) pixcode; - } - } -} - - -METHODDEF(void) -color_quantize3 (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* Fast path for out_color_components==3, no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register int pixcode; - register JSAMPROW ptrin, ptrout; - JSAMPROW colorindex0 = cquantize->colorindex[0]; - JSAMPROW colorindex1 = cquantize->colorindex[1]; - JSAMPROW colorindex2 = cquantize->colorindex[2]; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - ptrin = input_buf[row]; - ptrout = output_buf[row]; - for (col = width; col > 0; col--) { - pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*ptrin++)]); - pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*ptrin++)]); - pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*ptrin++)]); - *ptrout++ = (JSAMPLE) pixcode; - } - } -} - - -METHODDEF(void) -quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, with ordered dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex_ci; - int * dither; /* points to active row of dither matrix */ - int row_index, col_index; /* current indexes into dither matrix */ - int nc = cinfo->out_color_components; - int ci; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - /* Initialize output values to 0 so can process components separately */ - FMEMZERO((void FAR *) output_buf[row], - (size_t) (width * SIZEOF(JSAMPLE))); - row_index = cquantize->row_index; - for (ci = 0; ci < nc; ci++) { - input_ptr = input_buf[row] + ci; - output_ptr = output_buf[row]; - colorindex_ci = cquantize->colorindex[ci]; - dither = cquantize->odither[ci][row_index]; - col_index = 0; - - for (col = width; col > 0; col--) { - /* Form pixel value + dither, range-limit to 0..MAXJSAMPLE, - * select output value, accumulate into output code for this pixel. - * Range-limiting need not be done explicitly, as we have extended - * the colorindex table to produce the right answers for out-of-range - * inputs. The maximum dither is +- MAXJSAMPLE; this sets the - * required amount of padding. - */ - *output_ptr += colorindex_ci[GETJSAMPLE(*input_ptr)+dither[col_index]]; - input_ptr += nc; - output_ptr++; - col_index = (col_index + 1) & ODITHER_MASK; - } - } - /* Advance row index for next row */ - row_index = (row_index + 1) & ODITHER_MASK; - cquantize->row_index = row_index; - } -} - - -METHODDEF(void) -quantize3_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* Fast path for out_color_components==3, with ordered dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register int pixcode; - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex0 = cquantize->colorindex[0]; - JSAMPROW colorindex1 = cquantize->colorindex[1]; - JSAMPROW colorindex2 = cquantize->colorindex[2]; - int * dither0; /* points to active row of dither matrix */ - int * dither1; - int * dither2; - int row_index, col_index; /* current indexes into dither matrix */ - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - row_index = cquantize->row_index; - input_ptr = input_buf[row]; - output_ptr = output_buf[row]; - dither0 = cquantize->odither[0][row_index]; - dither1 = cquantize->odither[1][row_index]; - dither2 = cquantize->odither[2][row_index]; - col_index = 0; - - for (col = width; col > 0; col--) { - pixcode = GETJSAMPLE(colorindex0[GETJSAMPLE(*input_ptr++) + - dither0[col_index]]); - pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*input_ptr++) + - dither1[col_index]]); - pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*input_ptr++) + - dither2[col_index]]); - *output_ptr++ = (JSAMPLE) pixcode; - col_index = (col_index + 1) & ODITHER_MASK; - } - row_index = (row_index + 1) & ODITHER_MASK; - cquantize->row_index = row_index; - } -} - - -METHODDEF(void) -quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, - JSAMPARRAY output_buf, int num_rows) -/* General case, with Floyd-Steinberg dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - register LOCFSERROR cur; /* current error or pixel value */ - LOCFSERROR belowerr; /* error for pixel below cur */ - LOCFSERROR bpreverr; /* error for below/prev col */ - LOCFSERROR bnexterr; /* error for below/next col */ - LOCFSERROR delta; - register FSERRPTR errorptr; /* => fserrors[] at column before current */ - register JSAMPROW input_ptr; - register JSAMPROW output_ptr; - JSAMPROW colorindex_ci; - JSAMPROW colormap_ci; - int pixcode; - int nc = cinfo->out_color_components; - int dir; /* 1 for left-to-right, -1 for right-to-left */ - int dirnc; /* dir * nc */ - int ci; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - JSAMPLE *range_limit = cinfo->sample_range_limit; - SHIFT_TEMPS - - for (row = 0; row < num_rows; row++) { - /* Initialize output values to 0 so can process components separately */ - FMEMZERO((void FAR *) output_buf[row], - (size_t) (width * SIZEOF(JSAMPLE))); - for (ci = 0; ci < nc; ci++) { - input_ptr = input_buf[row] + ci; - output_ptr = output_buf[row]; - if (cquantize->on_odd_row) { - /* work right to left in this row */ - input_ptr += (width-1) * nc; /* so point to rightmost pixel */ - output_ptr += width-1; - dir = -1; - dirnc = -nc; - errorptr = cquantize->fserrors[ci] + (width+1); /* => entry after last column */ - } else { - /* work left to right in this row */ - dir = 1; - dirnc = nc; - errorptr = cquantize->fserrors[ci]; /* => entry before first column */ - } - colorindex_ci = cquantize->colorindex[ci]; - colormap_ci = cquantize->sv_colormap[ci]; - /* Preset error values: no error propagated to first pixel from left */ - cur = 0; - /* and no error propagated to row below yet */ - belowerr = bpreverr = 0; - - for (col = width; col > 0; col--) { - /* cur holds the error propagated from the previous pixel on the - * current line. Add the error propagated from the previous line - * to form the complete error correction term for this pixel, and - * round the error term (which is expressed * 16) to an integer. - * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct - * for either sign of the error value. - * Note: errorptr points to *previous* column's array entry. - */ - cur = RIGHT_SHIFT(cur + errorptr[dir] + 8, 4); - /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. - * The maximum error is +- MAXJSAMPLE; this sets the required size - * of the range_limit array. - */ - cur += GETJSAMPLE(*input_ptr); - cur = GETJSAMPLE(range_limit[cur]); - /* Select output value, accumulate into output code for this pixel */ - pixcode = GETJSAMPLE(colorindex_ci[cur]); - *output_ptr += (JSAMPLE) pixcode; - /* Compute actual representation error at this pixel */ - /* Note: we can do this even though we don't have the final */ - /* pixel code, because the colormap is orthogonal. */ - cur -= GETJSAMPLE(colormap_ci[pixcode]); - /* Compute error fractions to be propagated to adjacent pixels. - * Add these into the running sums, and simultaneously shift the - * next-line error sums left by 1 column. - */ - bnexterr = cur; - delta = cur * 2; - cur += delta; /* form error * 3 */ - errorptr[0] = (FSERROR) (bpreverr + cur); - cur += delta; /* form error * 5 */ - bpreverr = belowerr + cur; - belowerr = bnexterr; - cur += delta; /* form error * 7 */ - /* At this point cur contains the 7/16 error value to be propagated - * to the next pixel on the current line, and all the errors for the - * next line have been shifted over. We are therefore ready to move on. - */ - input_ptr += dirnc; /* advance input ptr to next column */ - output_ptr += dir; /* advance output ptr to next column */ - errorptr += dir; /* advance errorptr to current column */ - } - /* Post-loop cleanup: we must unload the final error value into the - * final fserrors[] entry. Note we need not unload belowerr because - * it is for the dummy column before or after the actual array. - */ - errorptr[0] = (FSERROR) bpreverr; /* unload prev err into array */ - } - cquantize->on_odd_row = (cquantize->on_odd_row ? FALSE : TRUE); - } -} - - -/* - * Allocate workspace for Floyd-Steinberg errors. - */ - -LOCAL(void) -alloc_fs_workspace (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - size_t arraysize; - int i; - - arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); - for (i = 0; i < cinfo->out_color_components; i++) { - cquantize->fserrors[i] = (FSERRPTR) - (*cinfo->mem->alloc_large)((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); - } -} - - -/* - * Initialize for one-pass color quantization. - */ - -METHODDEF(void) -start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - size_t arraysize; - int i; - - /* Install my colormap. */ - cinfo->colormap = cquantize->sv_colormap; - cinfo->actual_number_of_colors = cquantize->sv_actual; - - /* Initialize for desired dithering mode. */ - switch (cinfo->dither_mode) { - case JDITHER_NONE: - if (cinfo->out_color_components == 3) - cquantize->pub.color_quantize = color_quantize3; - else - cquantize->pub.color_quantize = color_quantize; - break; - case JDITHER_ORDERED: - if (cinfo->out_color_components == 3) - cquantize->pub.color_quantize = quantize3_ord_dither; - else - cquantize->pub.color_quantize = quantize_ord_dither; - cquantize->row_index = 0; /* initialize state for ordered dither */ - /* If user changed to ordered dither from another mode, - * we must recreate the color index table with padding. - * This will cost extra space, but probably isn't very likely. - */ - if (! cquantize->is_padded) - create_colorindex(cinfo); - /* Create ordered-dither tables if we didn't already. */ - if (cquantize->odither[0] == NULL) - create_odither_tables(cinfo); - break; - case JDITHER_FS: - cquantize->pub.color_quantize = quantize_fs_dither; - cquantize->on_odd_row = FALSE; /* initialize state for F-S dither */ - /* Allocate Floyd-Steinberg workspace if didn't already. */ - if (cquantize->fserrors[0] == NULL) - alloc_fs_workspace(cinfo); - /* Initialize the propagated errors to zero. */ - arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR)); - for (i = 0; i < cinfo->out_color_components; i++) - FMEMZERO((void FAR *) cquantize->fserrors[i], arraysize); - break; - default: - ERREXIT(cinfo, JERR_NOT_COMPILED); - break; - } -} - - -/* - * Finish up at the end of the pass. - */ - -METHODDEF(void) -finish_pass_1_quant (j_decompress_ptr cinfo) -{ - /* no work in 1-pass case */ -} - - -/* - * Switch to a new external colormap between output passes. - * Shouldn't get to this module! - */ - -METHODDEF(void) -new_color_map_1_quant (j_decompress_ptr cinfo) -{ - ERREXIT(cinfo, JERR_MODE_CHANGE); -} - - -/* - * Module initialization routine for 1-pass color quantization. - */ - -GLOBAL(void) -jinit_1pass_quantizer (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize; - - cquantize = (my_cquantize_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_cquantizer)); - cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; - cquantize->pub.start_pass = start_pass_1_quant; - cquantize->pub.finish_pass = finish_pass_1_quant; - cquantize->pub.new_color_map = new_color_map_1_quant; - cquantize->fserrors[0] = NULL; /* Flag FS workspace not allocated */ - cquantize->odither[0] = NULL; /* Also flag odither arrays not allocated */ - - /* Make sure my internal arrays won't overflow */ - if (cinfo->out_color_components > MAX_Q_COMPS) - ERREXIT1(cinfo, JERR_QUANT_COMPONENTS, MAX_Q_COMPS); - /* Make sure colormap indexes can be represented by JSAMPLEs */ - if (cinfo->desired_number_of_colors > (MAXJSAMPLE+1)) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXJSAMPLE+1); - - /* Create the colormap and color index table. */ - create_colormap(cinfo); - create_colorindex(cinfo); - - /* Allocate Floyd-Steinberg workspace now if requested. - * We do this now since it is FAR storage and may affect the memory - * manager's space calculations. If the user changes to FS dither - * mode in a later pass, we will allocate the space then, and will - * possibly overrun the max_memory_to_use setting. - */ - if (cinfo->dither_mode == JDITHER_FS) - alloc_fs_workspace(cinfo); -} - -#endif /* QUANT_1PASS_SUPPORTED */ diff --git a/jpeg/jquant2.c b/jpeg/jquant2.c deleted file mode 100755 index 38fc2af..0000000 --- a/jpeg/jquant2.c +++ /dev/null @@ -1,1311 +0,0 @@ -/* - * jquant2.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains 2-pass color quantization (color mapping) routines. - * These routines provide selection of a custom color map for an image, - * followed by mapping of the image to that color map, with optional - * Floyd-Steinberg dithering. - * It is also possible to use just the second pass to map to an arbitrary - * externally-given color map. - * - * Note: ordered dithering is not supported, since there isn't any fast - * way to compute intercolor distances; it's unclear that ordered dither's - * fundamental assumptions even hold with an irregularly spaced color map. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - -#ifdef QUANT_2PASS_SUPPORTED - - -/* - * This module implements the well-known Heckbert paradigm for color - * quantization. Most of the ideas used here can be traced back to - * Heckbert's seminal paper - * Heckbert, Paul. "Color Image Quantization for Frame Buffer Display", - * Proc. SIGGRAPH '82, Computer Graphics v.16 #3 (July 1982), pp 297-304. - * - * In the first pass over the image, we accumulate a histogram showing the - * usage count of each possible color. To keep the histogram to a reasonable - * size, we reduce the precision of the input; typical practice is to retain - * 5 or 6 bits per color, so that 8 or 4 different input values are counted - * in the same histogram cell. - * - * Next, the color-selection step begins with a box representing the whole - * color space, and repeatedly splits the "largest" remaining box until we - * have as many boxes as desired colors. Then the mean color in each - * remaining box becomes one of the possible output colors. - * - * The second pass over the image maps each input pixel to the closest output - * color (optionally after applying a Floyd-Steinberg dithering correction). - * This mapping is logically trivial, but making it go fast enough requires - * considerable care. - * - * Heckbert-style quantizers vary a good deal in their policies for choosing - * the "largest" box and deciding where to cut it. The particular policies - * used here have proved out well in experimental comparisons, but better ones - * may yet be found. - * - * In earlier versions of the IJG code, this module quantized in YCbCr color - * space, processing the raw upsampled data without a color conversion step. - * This allowed the color conversion math to be done only once per colormap - * entry, not once per pixel. However, that optimization precluded other - * useful optimizations (such as merging color conversion with upsampling) - * and it also interfered with desired capabilities such as quantizing to an - * externally-supplied colormap. We have therefore abandoned that approach. - * The present code works in the post-conversion color space, typically RGB. - * - * To improve the visual quality of the results, we actually work in scaled - * RGB space, giving G distances more weight than R, and R in turn more than - * B. To do everything in integer math, we must use integer scale factors. - * The 2/3/1 scale factors used here correspond loosely to the relative - * weights of the colors in the NTSC grayscale equation. - * If you want to use this code to quantize a non-RGB color space, you'll - * probably need to change these scale factors. - */ - -#define R_SCALE 2 /* scale R distances by this much */ -#define G_SCALE 3 /* scale G distances by this much */ -#define B_SCALE 1 /* and B by this much */ - -/* Relabel R/G/B as components 0/1/2, respecting the RGB ordering defined - * in jmorecfg.h. As the code stands, it will do the right thing for R,G,B - * and B,G,R orders. If you define some other weird order in jmorecfg.h, - * you'll get compile errors until you extend this logic. In that case - * you'll probably want to tweak the histogram sizes too. - */ - -#if RGB_RED == 0 -#define C0_SCALE R_SCALE -#endif -#if RGB_BLUE == 0 -#define C0_SCALE B_SCALE -#endif -#if RGB_GREEN == 1 -#define C1_SCALE G_SCALE -#endif -#if RGB_RED == 2 -#define C2_SCALE R_SCALE -#endif -#if RGB_BLUE == 2 -#define C2_SCALE B_SCALE -#endif - - -/* - * First we have the histogram data structure and routines for creating it. - * - * The number of bits of precision can be adjusted by changing these symbols. - * We recommend keeping 6 bits for G and 5 each for R and B. - * If you have plenty of memory and cycles, 6 bits all around gives marginally - * better results; if you are short of memory, 5 bits all around will save - * some space but degrade the results. - * To maintain a fully accurate histogram, we'd need to allocate a "long" - * (preferably unsigned long) for each cell. In practice this is overkill; - * we can get by with 16 bits per cell. Few of the cell counts will overflow, - * and clamping those that do overflow to the maximum value will give close- - * enough results. This reduces the recommended histogram size from 256Kb - * to 128Kb, which is a useful savings on PC-class machines. - * (In the second pass the histogram space is re-used for pixel mapping data; - * in that capacity, each cell must be able to store zero to the number of - * desired colors. 16 bits/cell is plenty for that too.) - * Since the JPEG code is intended to run in small memory model on 80x86 - * machines, we can't just allocate the histogram in one chunk. Instead - * of a true 3-D array, we use a row of pointers to 2-D arrays. Each - * pointer corresponds to a C0 value (typically 2^5 = 32 pointers) and - * each 2-D array has 2^6*2^5 = 2048 or 2^6*2^6 = 4096 entries. Note that - * on 80x86 machines, the pointer row is in near memory but the actual - * arrays are in far memory (same arrangement as we use for image arrays). - */ - -#define MAXNUMCOLORS (MAXJSAMPLE+1) /* maximum size of colormap */ - -/* These will do the right thing for either R,G,B or B,G,R color order, - * but you may not like the results for other color orders. - */ -#define HIST_C0_BITS 5 /* bits of precision in R/B histogram */ -#define HIST_C1_BITS 6 /* bits of precision in G histogram */ -#define HIST_C2_BITS 5 /* bits of precision in B/R histogram */ - -/* Number of elements along histogram axes. */ -#define HIST_C0_ELEMS (1<cquantize; - register JSAMPROW ptr; - register histptr histp; - register hist3d histogram = cquantize->histogram; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - ptr = input_buf[row]; - for (col = width; col > 0; col--) { - /* get pixel value and index into the histogram */ - histp = & histogram[GETJSAMPLE(ptr[0]) >> C0_SHIFT] - [GETJSAMPLE(ptr[1]) >> C1_SHIFT] - [GETJSAMPLE(ptr[2]) >> C2_SHIFT]; - /* increment, check for overflow and undo increment if so. */ - if (++(*histp) <= 0) - (*histp)--; - ptr += 3; - } - } -} - - -/* - * Next we have the really interesting routines: selection of a colormap - * given the completed histogram. - * These routines work with a list of "boxes", each representing a rectangular - * subset of the input color space (to histogram precision). - */ - -typedef struct { - /* The bounds of the box (inclusive); expressed as histogram indexes */ - int c0min, c0max; - int c1min, c1max; - int c2min, c2max; - /* The volume (actually 2-norm) of the box */ - INT32 volume; - /* The number of nonzero histogram cells within this box */ - long colorcount; -} box; - -typedef box * boxptr; - - -LOCAL(boxptr) -find_biggest_color_pop (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest color population */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register long maxc = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { - if (boxp->colorcount > maxc && boxp->volume > 0) { - which = boxp; - maxc = boxp->colorcount; - } - } - return which; -} - - -LOCAL(boxptr) -find_biggest_volume (boxptr boxlist, int numboxes) -/* Find the splittable box with the largest (scaled) volume */ -/* Returns NULL if no splittable boxes remain */ -{ - register boxptr boxp; - register int i; - register INT32 maxv = 0; - boxptr which = NULL; - - for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) { - if (boxp->volume > maxv) { - which = boxp; - maxv = boxp->volume; - } - } - return which; -} - - -LOCAL(void) -update_box (j_decompress_ptr cinfo, boxptr boxp) -/* Shrink the min/max bounds of a box to enclose only nonzero elements, */ -/* and recompute its volume and population */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - histptr histp; - int c0,c1,c2; - int c0min,c0max,c1min,c1max,c2min,c2max; - INT32 dist0,dist1,dist2; - long ccount; - - c0min = boxp->c0min; c0max = boxp->c0max; - c1min = boxp->c1min; c1max = boxp->c1max; - c2min = boxp->c2min; c2max = boxp->c2max; - - if (c0max > c0min) - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c0min = c0min = c0; - goto have_c0min; - } - } - have_c0min: - if (c0max > c0min) - for (c0 = c0max; c0 >= c0min; c0--) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c0max = c0max = c0; - goto have_c0max; - } - } - have_c0max: - if (c1max > c1min) - for (c1 = c1min; c1 <= c1max; c1++) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c1min = c1min = c1; - goto have_c1min; - } - } - have_c1min: - if (c1max > c1min) - for (c1 = c1max; c1 >= c1min; c1--) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) - if (*histp++ != 0) { - boxp->c1max = c1max = c1; - goto have_c1max; - } - } - have_c1max: - if (c2max > c2min) - for (c2 = c2min; c2 <= c2max; c2++) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) { - boxp->c2min = c2min = c2; - goto have_c2min; - } - } - have_c2min: - if (c2max > c2min) - for (c2 = c2max; c2 >= c2min; c2--) - for (c0 = c0min; c0 <= c0max; c0++) { - histp = & histogram[c0][c1min][c2]; - for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS) - if (*histp != 0) { - boxp->c2max = c2max = c2; - goto have_c2max; - } - } - have_c2max: - - /* Update box volume. - * We use 2-norm rather than real volume here; this biases the method - * against making long narrow boxes, and it has the side benefit that - * a box is splittable iff norm > 0. - * Since the differences are expressed in histogram-cell units, - * we have to shift back to JSAMPLE units to get consistent distances; - * after which, we scale according to the selected distance scale factors. - */ - dist0 = ((c0max - c0min) << C0_SHIFT) * C0_SCALE; - dist1 = ((c1max - c1min) << C1_SHIFT) * C1_SCALE; - dist2 = ((c2max - c2min) << C2_SHIFT) * C2_SCALE; - boxp->volume = dist0*dist0 + dist1*dist1 + dist2*dist2; - - /* Now scan remaining volume of box and compute population */ - ccount = 0; - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++, histp++) - if (*histp != 0) { - ccount++; - } - } - boxp->colorcount = ccount; -} - - -LOCAL(int) -median_cut (j_decompress_ptr cinfo, boxptr boxlist, int numboxes, - int desired_colors) -/* Repeatedly select and split the largest box until we have enough boxes */ -{ - int n,lb; - int c0,c1,c2,cmax; - register boxptr b1,b2; - - while (numboxes < desired_colors) { - /* Select box to split. - * Current algorithm: by population for first half, then by volume. - */ - if (numboxes*2 <= desired_colors) { - b1 = find_biggest_color_pop(boxlist, numboxes); - } else { - b1 = find_biggest_volume(boxlist, numboxes); - } - if (b1 == NULL) /* no splittable boxes left! */ - break; - b2 = &boxlist[numboxes]; /* where new box will go */ - /* Copy the color bounds to the new box. */ - b2->c0max = b1->c0max; b2->c1max = b1->c1max; b2->c2max = b1->c2max; - b2->c0min = b1->c0min; b2->c1min = b1->c1min; b2->c2min = b1->c2min; - /* Choose which axis to split the box on. - * Current algorithm: longest scaled axis. - * See notes in update_box about scaling distances. - */ - c0 = ((b1->c0max - b1->c0min) << C0_SHIFT) * C0_SCALE; - c1 = ((b1->c1max - b1->c1min) << C1_SHIFT) * C1_SCALE; - c2 = ((b1->c2max - b1->c2min) << C2_SHIFT) * C2_SCALE; - /* We want to break any ties in favor of green, then red, blue last. - * This code does the right thing for R,G,B or B,G,R color orders only. - */ -#if RGB_RED == 0 - cmax = c1; n = 1; - if (c0 > cmax) { cmax = c0; n = 0; } - if (c2 > cmax) { n = 2; } -#else - cmax = c1; n = 1; - if (c2 > cmax) { cmax = c2; n = 2; } - if (c0 > cmax) { n = 0; } -#endif - /* Choose split point along selected axis, and update box bounds. - * Current algorithm: split at halfway point. - * (Since the box has been shrunk to minimum volume, - * any split will produce two nonempty subboxes.) - * Note that lb value is max for lower box, so must be < old max. - */ - switch (n) { - case 0: - lb = (b1->c0max + b1->c0min) / 2; - b1->c0max = lb; - b2->c0min = lb+1; - break; - case 1: - lb = (b1->c1max + b1->c1min) / 2; - b1->c1max = lb; - b2->c1min = lb+1; - break; - case 2: - lb = (b1->c2max + b1->c2min) / 2; - b1->c2max = lb; - b2->c2min = lb+1; - break; - } - /* Update stats for boxes */ - update_box(cinfo, b1); - update_box(cinfo, b2); - numboxes++; - } - return numboxes; -} - - -LOCAL(void) -compute_color (j_decompress_ptr cinfo, boxptr boxp, int icolor) -/* Compute representative color for a box, put it in colormap[icolor] */ -{ - /* Current algorithm: mean weighted by pixels (not colors) */ - /* Note it is important to get the rounding correct! */ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - histptr histp; - int c0,c1,c2; - int c0min,c0max,c1min,c1max,c2min,c2max; - long count; - long total = 0; - long c0total = 0; - long c1total = 0; - long c2total = 0; - - c0min = boxp->c0min; c0max = boxp->c0max; - c1min = boxp->c1min; c1max = boxp->c1max; - c2min = boxp->c2min; c2max = boxp->c2max; - - for (c0 = c0min; c0 <= c0max; c0++) - for (c1 = c1min; c1 <= c1max; c1++) { - histp = & histogram[c0][c1][c2min]; - for (c2 = c2min; c2 <= c2max; c2++) { - if ((count = *histp++) != 0) { - total += count; - c0total += ((c0 << C0_SHIFT) + ((1<>1)) * count; - c1total += ((c1 << C1_SHIFT) + ((1<>1)) * count; - c2total += ((c2 << C2_SHIFT) + ((1<>1)) * count; - } - } - } - - cinfo->colormap[0][icolor] = (JSAMPLE) ((c0total + (total>>1)) / total); - cinfo->colormap[1][icolor] = (JSAMPLE) ((c1total + (total>>1)) / total); - cinfo->colormap[2][icolor] = (JSAMPLE) ((c2total + (total>>1)) / total); -} - - -LOCAL(void) -select_colors (j_decompress_ptr cinfo, int desired_colors) -/* Master routine for color selection */ -{ - boxptr boxlist; - int numboxes; - int i; - - /* Allocate workspace for box list */ - boxlist = (boxptr) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, desired_colors * SIZEOF(box)); - /* Initialize one box containing whole space */ - numboxes = 1; - boxlist[0].c0min = 0; - boxlist[0].c0max = MAXJSAMPLE >> C0_SHIFT; - boxlist[0].c1min = 0; - boxlist[0].c1max = MAXJSAMPLE >> C1_SHIFT; - boxlist[0].c2min = 0; - boxlist[0].c2max = MAXJSAMPLE >> C2_SHIFT; - /* Shrink it to actually-used volume and set its statistics */ - update_box(cinfo, & boxlist[0]); - /* Perform median-cut to produce final box list */ - numboxes = median_cut(cinfo, boxlist, numboxes, desired_colors); - /* Compute the representative color for each box, fill colormap */ - for (i = 0; i < numboxes; i++) - compute_color(cinfo, & boxlist[i], i); - cinfo->actual_number_of_colors = numboxes; - TRACEMS1(cinfo, 1, JTRC_QUANT_SELECTED, numboxes); -} - - -/* - * These routines are concerned with the time-critical task of mapping input - * colors to the nearest color in the selected colormap. - * - * We re-use the histogram space as an "inverse color map", essentially a - * cache for the results of nearest-color searches. All colors within a - * histogram cell will be mapped to the same colormap entry, namely the one - * closest to the cell's center. This may not be quite the closest entry to - * the actual input color, but it's almost as good. A zero in the cache - * indicates we haven't found the nearest color for that cell yet; the array - * is cleared to zeroes before starting the mapping pass. When we find the - * nearest color for a cell, its colormap index plus one is recorded in the - * cache for future use. The pass2 scanning routines call fill_inverse_cmap - * when they need to use an unfilled entry in the cache. - * - * Our method of efficiently finding nearest colors is based on the "locally - * sorted search" idea described by Heckbert and on the incremental distance - * calculation described by Spencer W. Thomas in chapter III.1 of Graphics - * Gems II (James Arvo, ed. Academic Press, 1991). Thomas points out that - * the distances from a given colormap entry to each cell of the histogram can - * be computed quickly using an incremental method: the differences between - * distances to adjacent cells themselves differ by a constant. This allows a - * fairly fast implementation of the "brute force" approach of computing the - * distance from every colormap entry to every histogram cell. Unfortunately, - * it needs a work array to hold the best-distance-so-far for each histogram - * cell (because the inner loop has to be over cells, not colormap entries). - * The work array elements have to be INT32s, so the work array would need - * 256Kb at our recommended precision. This is not feasible in DOS machines. - * - * To get around these problems, we apply Thomas' method to compute the - * nearest colors for only the cells within a small subbox of the histogram. - * The work array need be only as big as the subbox, so the memory usage - * problem is solved. Furthermore, we need not fill subboxes that are never - * referenced in pass2; many images use only part of the color gamut, so a - * fair amount of work is saved. An additional advantage of this - * approach is that we can apply Heckbert's locality criterion to quickly - * eliminate colormap entries that are far away from the subbox; typically - * three-fourths of the colormap entries are rejected by Heckbert's criterion, - * and we need not compute their distances to individual cells in the subbox. - * The speed of this approach is heavily influenced by the subbox size: too - * small means too much overhead, too big loses because Heckbert's criterion - * can't eliminate as many colormap entries. Empirically the best subbox - * size seems to be about 1/512th of the histogram (1/8th in each direction). - * - * Thomas' article also describes a refined method which is asymptotically - * faster than the brute-force method, but it is also far more complex and - * cannot efficiently be applied to small subboxes. It is therefore not - * useful for programs intended to be portable to DOS machines. On machines - * with plenty of memory, filling the whole histogram in one shot with Thomas' - * refined method might be faster than the present code --- but then again, - * it might not be any faster, and it's certainly more complicated. - */ - - -/* log2(histogram cells in update box) for each axis; this can be adjusted */ -#define BOX_C0_LOG (HIST_C0_BITS-3) -#define BOX_C1_LOG (HIST_C1_BITS-3) -#define BOX_C2_LOG (HIST_C2_BITS-3) - -#define BOX_C0_ELEMS (1<actual_number_of_colors; - int maxc0, maxc1, maxc2; - int centerc0, centerc1, centerc2; - int i, x, ncolors; - INT32 minmaxdist, min_dist, max_dist, tdist; - INT32 mindist[MAXNUMCOLORS]; /* min distance to colormap entry i */ - - /* Compute true coordinates of update box's upper corner and center. - * Actually we compute the coordinates of the center of the upper-corner - * histogram cell, which are the upper bounds of the volume we care about. - * Note that since ">>" rounds down, the "center" values may be closer to - * min than to max; hence comparisons to them must be "<=", not "<". - */ - maxc0 = minc0 + ((1 << BOX_C0_SHIFT) - (1 << C0_SHIFT)); - centerc0 = (minc0 + maxc0) >> 1; - maxc1 = minc1 + ((1 << BOX_C1_SHIFT) - (1 << C1_SHIFT)); - centerc1 = (minc1 + maxc1) >> 1; - maxc2 = minc2 + ((1 << BOX_C2_SHIFT) - (1 << C2_SHIFT)); - centerc2 = (minc2 + maxc2) >> 1; - - /* For each color in colormap, find: - * 1. its minimum squared-distance to any point in the update box - * (zero if color is within update box); - * 2. its maximum squared-distance to any point in the update box. - * Both of these can be found by considering only the corners of the box. - * We save the minimum distance for each color in mindist[]; - * only the smallest maximum distance is of interest. - */ - minmaxdist = 0x7FFFFFFFL; - - for (i = 0; i < numcolors; i++) { - /* We compute the squared-c0-distance term, then add in the other two. */ - x = GETJSAMPLE(cinfo->colormap[0][i]); - if (x < minc0) { - tdist = (x - minc0) * C0_SCALE; - min_dist = tdist*tdist; - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist*tdist; - } else if (x > maxc0) { - tdist = (x - maxc0) * C0_SCALE; - min_dist = tdist*tdist; - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - min_dist = 0; - if (x <= centerc0) { - tdist = (x - maxc0) * C0_SCALE; - max_dist = tdist*tdist; - } else { - tdist = (x - minc0) * C0_SCALE; - max_dist = tdist*tdist; - } - } - - x = GETJSAMPLE(cinfo->colormap[1][i]); - if (x < minc1) { - tdist = (x - minc1) * C1_SCALE; - min_dist += tdist*tdist; - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist*tdist; - } else if (x > maxc1) { - tdist = (x - maxc1) * C1_SCALE; - min_dist += tdist*tdist; - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - if (x <= centerc1) { - tdist = (x - maxc1) * C1_SCALE; - max_dist += tdist*tdist; - } else { - tdist = (x - minc1) * C1_SCALE; - max_dist += tdist*tdist; - } - } - - x = GETJSAMPLE(cinfo->colormap[2][i]); - if (x < minc2) { - tdist = (x - minc2) * C2_SCALE; - min_dist += tdist*tdist; - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist*tdist; - } else if (x > maxc2) { - tdist = (x - maxc2) * C2_SCALE; - min_dist += tdist*tdist; - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist*tdist; - } else { - /* within cell range so no contribution to min_dist */ - if (x <= centerc2) { - tdist = (x - maxc2) * C2_SCALE; - max_dist += tdist*tdist; - } else { - tdist = (x - minc2) * C2_SCALE; - max_dist += tdist*tdist; - } - } - - mindist[i] = min_dist; /* save away the results */ - if (max_dist < minmaxdist) - minmaxdist = max_dist; - } - - /* Now we know that no cell in the update box is more than minmaxdist - * away from some colormap entry. Therefore, only colors that are - * within minmaxdist of some part of the box need be considered. - */ - ncolors = 0; - for (i = 0; i < numcolors; i++) { - if (mindist[i] <= minmaxdist) - colorlist[ncolors++] = (JSAMPLE) i; - } - return ncolors; -} - - -LOCAL(void) -find_best_colors (j_decompress_ptr cinfo, int minc0, int minc1, int minc2, - int numcolors, JSAMPLE colorlist[], JSAMPLE bestcolor[]) -/* Find the closest colormap entry for each cell in the update box, - * given the list of candidate colors prepared by find_nearby_colors. - * Return the indexes of the closest entries in the bestcolor[] array. - * This routine uses Thomas' incremental distance calculation method to - * find the distance from a colormap entry to successive cells in the box. - */ -{ - int ic0, ic1, ic2; - int i, icolor; - register INT32 * bptr; /* pointer into bestdist[] array */ - JSAMPLE * cptr; /* pointer into bestcolor[] array */ - INT32 dist0, dist1; /* initial distance values */ - register INT32 dist2; /* current distance in inner loop */ - INT32 xx0, xx1; /* distance increments */ - register INT32 xx2; - INT32 inc0, inc1, inc2; /* initial values for increments */ - /* This array holds the distance to the nearest-so-far color for each cell */ - INT32 bestdist[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Initialize best-distance for each cell of the update box */ - bptr = bestdist; - for (i = BOX_C0_ELEMS*BOX_C1_ELEMS*BOX_C2_ELEMS-1; i >= 0; i--) - *bptr++ = 0x7FFFFFFFL; - - /* For each color selected by find_nearby_colors, - * compute its distance to the center of each cell in the box. - * If that's less than best-so-far, update best distance and color number. - */ - - /* Nominal steps between cell centers ("x" in Thomas article) */ -#define STEP_C0 ((1 << C0_SHIFT) * C0_SCALE) -#define STEP_C1 ((1 << C1_SHIFT) * C1_SCALE) -#define STEP_C2 ((1 << C2_SHIFT) * C2_SCALE) - - for (i = 0; i < numcolors; i++) { - icolor = GETJSAMPLE(colorlist[i]); - /* Compute (square of) distance from minc0/c1/c2 to this color */ - inc0 = (minc0 - GETJSAMPLE(cinfo->colormap[0][icolor])) * C0_SCALE; - dist0 = inc0*inc0; - inc1 = (minc1 - GETJSAMPLE(cinfo->colormap[1][icolor])) * C1_SCALE; - dist0 += inc1*inc1; - inc2 = (minc2 - GETJSAMPLE(cinfo->colormap[2][icolor])) * C2_SCALE; - dist0 += inc2*inc2; - /* Form the initial difference increments */ - inc0 = inc0 * (2 * STEP_C0) + STEP_C0 * STEP_C0; - inc1 = inc1 * (2 * STEP_C1) + STEP_C1 * STEP_C1; - inc2 = inc2 * (2 * STEP_C2) + STEP_C2 * STEP_C2; - /* Now loop over all cells in box, updating distance per Thomas method */ - bptr = bestdist; - cptr = bestcolor; - xx0 = inc0; - for (ic0 = BOX_C0_ELEMS-1; ic0 >= 0; ic0--) { - dist1 = dist0; - xx1 = inc1; - for (ic1 = BOX_C1_ELEMS-1; ic1 >= 0; ic1--) { - dist2 = dist1; - xx2 = inc2; - for (ic2 = BOX_C2_ELEMS-1; ic2 >= 0; ic2--) { - if (dist2 < *bptr) { - *bptr = dist2; - *cptr = (JSAMPLE) icolor; - } - dist2 += xx2; - xx2 += 2 * STEP_C2 * STEP_C2; - bptr++; - cptr++; - } - dist1 += xx1; - xx1 += 2 * STEP_C1 * STEP_C1; - } - dist0 += xx0; - xx0 += 2 * STEP_C0 * STEP_C0; - } - } -} - - -LOCAL(void) -fill_inverse_cmap (j_decompress_ptr cinfo, int c0, int c1, int c2) -/* Fill the inverse-colormap entries in the update box that contains */ -/* histogram cell c0/c1/c2. (Only that one cell MUST be filled, but */ -/* we can fill as many others as we wish.) */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - int minc0, minc1, minc2; /* lower left corner of update box */ - int ic0, ic1, ic2; - register JSAMPLE * cptr; /* pointer into bestcolor[] array */ - register histptr cachep; /* pointer into main cache array */ - /* This array lists the candidate colormap indexes. */ - JSAMPLE colorlist[MAXNUMCOLORS]; - int numcolors; /* number of candidate colors */ - /* This array holds the actually closest colormap index for each cell. */ - JSAMPLE bestcolor[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS]; - - /* Convert cell coordinates to update box ID */ - c0 >>= BOX_C0_LOG; - c1 >>= BOX_C1_LOG; - c2 >>= BOX_C2_LOG; - - /* Compute true coordinates of update box's origin corner. - * Actually we compute the coordinates of the center of the corner - * histogram cell, which are the lower bounds of the volume we care about. - */ - minc0 = (c0 << BOX_C0_SHIFT) + ((1 << C0_SHIFT) >> 1); - minc1 = (c1 << BOX_C1_SHIFT) + ((1 << C1_SHIFT) >> 1); - minc2 = (c2 << BOX_C2_SHIFT) + ((1 << C2_SHIFT) >> 1); - - /* Determine which colormap entries are close enough to be candidates - * for the nearest entry to some cell in the update box. - */ - numcolors = find_nearby_colors(cinfo, minc0, minc1, minc2, colorlist); - - /* Determine the actually nearest colors. */ - find_best_colors(cinfo, minc0, minc1, minc2, numcolors, colorlist, - bestcolor); - - /* Save the best color numbers (plus 1) in the main cache array */ - c0 <<= BOX_C0_LOG; /* convert ID back to base cell indexes */ - c1 <<= BOX_C1_LOG; - c2 <<= BOX_C2_LOG; - cptr = bestcolor; - for (ic0 = 0; ic0 < BOX_C0_ELEMS; ic0++) { - for (ic1 = 0; ic1 < BOX_C1_ELEMS; ic1++) { - cachep = & histogram[c0+ic0][c1+ic1][c2]; - for (ic2 = 0; ic2 < BOX_C2_ELEMS; ic2++) { - *cachep++ = (histcell) (GETJSAMPLE(*cptr++) + 1); - } - } - } -} - - -/* - * Map some rows of pixels to the output colormapped representation. - */ - -METHODDEF(void) -pass2_no_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs no dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - register JSAMPROW inptr, outptr; - register histptr cachep; - register int c0, c1, c2; - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - - for (row = 0; row < num_rows; row++) { - inptr = input_buf[row]; - outptr = output_buf[row]; - for (col = width; col > 0; col--) { - /* get pixel value and index into the cache */ - c0 = GETJSAMPLE(*inptr++) >> C0_SHIFT; - c1 = GETJSAMPLE(*inptr++) >> C1_SHIFT; - c2 = GETJSAMPLE(*inptr++) >> C2_SHIFT; - cachep = & histogram[c0][c1][c2]; - /* If we have not seen this color before, find nearest colormap entry */ - /* and update the cache */ - if (*cachep == 0) - fill_inverse_cmap(cinfo, c0,c1,c2); - /* Now emit the colormap index for this cell */ - *outptr++ = (JSAMPLE) (*cachep - 1); - } - } -} - - -METHODDEF(void) -pass2_fs_dither (j_decompress_ptr cinfo, - JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows) -/* This version performs Floyd-Steinberg dithering */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - register LOCFSERROR cur0, cur1, cur2; /* current error or pixel value */ - LOCFSERROR belowerr0, belowerr1, belowerr2; /* error for pixel below cur */ - LOCFSERROR bpreverr0, bpreverr1, bpreverr2; /* error for below/prev col */ - register FSERRPTR errorptr; /* => fserrors[] at column before current */ - JSAMPROW inptr; /* => current input pixel */ - JSAMPROW outptr; /* => current output pixel */ - histptr cachep; - int dir; /* +1 or -1 depending on direction */ - int dir3; /* 3*dir, for advancing inptr & errorptr */ - int row; - JDIMENSION col; - JDIMENSION width = cinfo->output_width; - JSAMPLE *range_limit = cinfo->sample_range_limit; - int *error_limit = cquantize->error_limiter; - JSAMPROW colormap0 = cinfo->colormap[0]; - JSAMPROW colormap1 = cinfo->colormap[1]; - JSAMPROW colormap2 = cinfo->colormap[2]; - SHIFT_TEMPS - - for (row = 0; row < num_rows; row++) { - inptr = input_buf[row]; - outptr = output_buf[row]; - if (cquantize->on_odd_row) { - /* work right to left in this row */ - inptr += (width-1) * 3; /* so point to rightmost pixel */ - outptr += width-1; - dir = -1; - dir3 = -3; - errorptr = cquantize->fserrors + (width+1)*3; /* => entry after last column */ - cquantize->on_odd_row = FALSE; /* flip for next time */ - } else { - /* work left to right in this row */ - dir = 1; - dir3 = 3; - errorptr = cquantize->fserrors; /* => entry before first real column */ - cquantize->on_odd_row = TRUE; /* flip for next time */ - } - /* Preset error values: no error propagated to first pixel from left */ - cur0 = cur1 = cur2 = 0; - /* and no error propagated to row below yet */ - belowerr0 = belowerr1 = belowerr2 = 0; - bpreverr0 = bpreverr1 = bpreverr2 = 0; - - for (col = width; col > 0; col--) { - /* curN holds the error propagated from the previous pixel on the - * current line. Add the error propagated from the previous line - * to form the complete error correction term for this pixel, and - * round the error term (which is expressed * 16) to an integer. - * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct - * for either sign of the error value. - * Note: errorptr points to *previous* column's array entry. - */ - cur0 = RIGHT_SHIFT(cur0 + errorptr[dir3+0] + 8, 4); - cur1 = RIGHT_SHIFT(cur1 + errorptr[dir3+1] + 8, 4); - cur2 = RIGHT_SHIFT(cur2 + errorptr[dir3+2] + 8, 4); - /* Limit the error using transfer function set by init_error_limit. - * See comments with init_error_limit for rationale. - */ - cur0 = error_limit[cur0]; - cur1 = error_limit[cur1]; - cur2 = error_limit[cur2]; - /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE. - * The maximum error is +- MAXJSAMPLE (or less with error limiting); - * this sets the required size of the range_limit array. - */ - cur0 += GETJSAMPLE(inptr[0]); - cur1 += GETJSAMPLE(inptr[1]); - cur2 += GETJSAMPLE(inptr[2]); - cur0 = GETJSAMPLE(range_limit[cur0]); - cur1 = GETJSAMPLE(range_limit[cur1]); - cur2 = GETJSAMPLE(range_limit[cur2]); - /* Index into the cache with adjusted pixel value */ - cachep = & histogram[cur0>>C0_SHIFT][cur1>>C1_SHIFT][cur2>>C2_SHIFT]; - /* If we have not seen this color before, find nearest colormap */ - /* entry and update the cache */ - if (*cachep == 0) - fill_inverse_cmap(cinfo, cur0>>C0_SHIFT,cur1>>C1_SHIFT,cur2>>C2_SHIFT); - /* Now emit the colormap index for this cell */ - { register int pixcode = *cachep - 1; - *outptr = (JSAMPLE) pixcode; - /* Compute representation error for this pixel */ - cur0 -= GETJSAMPLE(colormap0[pixcode]); - cur1 -= GETJSAMPLE(colormap1[pixcode]); - cur2 -= GETJSAMPLE(colormap2[pixcode]); - } - /* Compute error fractions to be propagated to adjacent pixels. - * Add these into the running sums, and simultaneously shift the - * next-line error sums left by 1 column. - */ - { register LOCFSERROR bnexterr, delta; - - bnexterr = cur0; /* Process component 0 */ - delta = cur0 * 2; - cur0 += delta; /* form error * 3 */ - errorptr[0] = (FSERROR) (bpreverr0 + cur0); - cur0 += delta; /* form error * 5 */ - bpreverr0 = belowerr0 + cur0; - belowerr0 = bnexterr; - cur0 += delta; /* form error * 7 */ - bnexterr = cur1; /* Process component 1 */ - delta = cur1 * 2; - cur1 += delta; /* form error * 3 */ - errorptr[1] = (FSERROR) (bpreverr1 + cur1); - cur1 += delta; /* form error * 5 */ - bpreverr1 = belowerr1 + cur1; - belowerr1 = bnexterr; - cur1 += delta; /* form error * 7 */ - bnexterr = cur2; /* Process component 2 */ - delta = cur2 * 2; - cur2 += delta; /* form error * 3 */ - errorptr[2] = (FSERROR) (bpreverr2 + cur2); - cur2 += delta; /* form error * 5 */ - bpreverr2 = belowerr2 + cur2; - belowerr2 = bnexterr; - cur2 += delta; /* form error * 7 */ - } - /* At this point curN contains the 7/16 error value to be propagated - * to the next pixel on the current line, and all the errors for the - * next line have been shifted over. We are therefore ready to move on. - */ - inptr += dir3; /* Advance pixel pointers to next column */ - outptr += dir; - errorptr += dir3; /* advance errorptr to current column */ - } - /* Post-loop cleanup: we must unload the final error values into the - * final fserrors[] entry. Note we need not unload belowerrN because - * it is for the dummy column before or after the actual array. - */ - errorptr[0] = (FSERROR) bpreverr0; /* unload prev errs into array */ - errorptr[1] = (FSERROR) bpreverr1; - errorptr[2] = (FSERROR) bpreverr2; - } -} - - -/* - * Initialize the error-limiting transfer function (lookup table). - * The raw F-S error computation can potentially compute error values of up to - * +- MAXJSAMPLE. But we want the maximum correction applied to a pixel to be - * much less, otherwise obviously wrong pixels will be created. (Typical - * effects include weird fringes at color-area boundaries, isolated bright - * pixels in a dark area, etc.) The standard advice for avoiding this problem - * is to ensure that the "corners" of the color cube are allocated as output - * colors; then repeated errors in the same direction cannot cause cascading - * error buildup. However, that only prevents the error from getting - * completely out of hand; Aaron Giles reports that error limiting improves - * the results even with corner colors allocated. - * A simple clamping of the error values to about +- MAXJSAMPLE/8 works pretty - * well, but the smoother transfer function used below is even better. Thanks - * to Aaron Giles for this idea. - */ - -LOCAL(void) -init_error_limit (j_decompress_ptr cinfo) -/* Allocate and fill in the error_limiter table */ -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - int * table; - int in, out; - - table = (int *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE*2+1) * SIZEOF(int)); - table += MAXJSAMPLE; /* so can index -MAXJSAMPLE .. +MAXJSAMPLE */ - cquantize->error_limiter = table; - -#define STEPSIZE ((MAXJSAMPLE+1)/16) - /* Map errors 1:1 up to +- MAXJSAMPLE/16 */ - out = 0; - for (in = 0; in < STEPSIZE; in++, out++) { - table[in] = out; table[-in] = -out; - } - /* Map errors 1:2 up to +- 3*MAXJSAMPLE/16 */ - for (; in < STEPSIZE*3; in++, out += (in&1) ? 0 : 1) { - table[in] = out; table[-in] = -out; - } - /* Clamp the rest to final out value (which is (MAXJSAMPLE+1)/8) */ - for (; in <= MAXJSAMPLE; in++) { - table[in] = out; table[-in] = -out; - } -#undef STEPSIZE -} - - -/* - * Finish up at the end of each pass. - */ - -METHODDEF(void) -finish_pass1 (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Select the representative colors and fill in cinfo->colormap */ - cinfo->colormap = cquantize->sv_colormap; - select_colors(cinfo, cquantize->desired); - /* Force next pass to zero the color index table */ - cquantize->needs_zeroed = TRUE; -} - - -METHODDEF(void) -finish_pass2 (j_decompress_ptr cinfo) -{ - /* no work */ -} - - -/* - * Initialize for each processing pass. - */ - -METHODDEF(void) -start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - hist3d histogram = cquantize->histogram; - int i; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - if (is_pre_scan) { - /* Set up method pointers */ - cquantize->pub.color_quantize = prescan_quantize; - cquantize->pub.finish_pass = finish_pass1; - cquantize->needs_zeroed = TRUE; /* Always zero histogram */ - } else { - /* Set up method pointers */ - if (cinfo->dither_mode == JDITHER_FS) - cquantize->pub.color_quantize = pass2_fs_dither; - else - cquantize->pub.color_quantize = pass2_no_dither; - cquantize->pub.finish_pass = finish_pass2; - - /* Make sure color count is acceptable */ - i = cinfo->actual_number_of_colors; - if (i < 1) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 1); - if (i > MAXNUMCOLORS) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - - if (cinfo->dither_mode == JDITHER_FS) { - size_t arraysize = (size_t) ((cinfo->output_width + 2) * - (3 * SIZEOF(FSERROR))); - /* Allocate Floyd-Steinberg workspace if we didn't already. */ - if (cquantize->fserrors == NULL) - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize); - /* Initialize the propagated errors to zero. */ - FMEMZERO((void FAR *) cquantize->fserrors, arraysize); - /* Make the error-limit table if we didn't already. */ - if (cquantize->error_limiter == NULL) - init_error_limit(cinfo); - cquantize->on_odd_row = FALSE; - } - - } - /* Zero the histogram or inverse color map, if necessary */ - if (cquantize->needs_zeroed) { - for (i = 0; i < HIST_C0_ELEMS; i++) { - FMEMZERO((void FAR *) histogram[i], - HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); - } - cquantize->needs_zeroed = FALSE; - } -} - - -/* - * Switch to a new external colormap between output passes. - */ - -METHODDEF(void) -new_color_map_2_quant (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize; - - /* Reset the inverse color map */ - cquantize->needs_zeroed = TRUE; -} - - -/* - * Module initialization routine for 2-pass color quantization. - */ - -GLOBAL(void) -jinit_2pass_quantizer (j_decompress_ptr cinfo) -{ - my_cquantize_ptr cquantize; - int i; - - cquantize = (my_cquantize_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(my_cquantizer)); - cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize; - cquantize->pub.start_pass = start_pass_2_quant; - cquantize->pub.new_color_map = new_color_map_2_quant; - cquantize->fserrors = NULL; /* flag optional arrays not allocated */ - cquantize->error_limiter = NULL; - - /* Make sure jdmaster didn't give me a case I can't handle */ - if (cinfo->out_color_components != 3) - ERREXIT(cinfo, JERR_NOTIMPL); - - /* Allocate the histogram/inverse colormap storage */ - cquantize->histogram = (hist3d) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, HIST_C0_ELEMS * SIZEOF(hist2d)); - for (i = 0; i < HIST_C0_ELEMS; i++) { - cquantize->histogram[i] = (hist2d) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell)); - } - cquantize->needs_zeroed = TRUE; /* histogram is garbage now */ - - /* Allocate storage for the completed colormap, if required. - * We do this now since it is FAR storage and may affect - * the memory manager's space calculations. - */ - if (cinfo->enable_2pass_quant) { - /* Make sure color count is acceptable */ - int desired = cinfo->desired_number_of_colors; - /* Lower bound on # of colors ... somewhat arbitrary as long as > 0 */ - if (desired < 8) - ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 8); - /* Make sure colormap indexes can be represented by JSAMPLEs */ - if (desired > MAXNUMCOLORS) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS); - cquantize->sv_colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo,JPOOL_IMAGE, (JDIMENSION) desired, (JDIMENSION) 3); - cquantize->desired = desired; - } else - cquantize->sv_colormap = NULL; - - /* Only F-S dithering or no dithering is supported. */ - /* If user asks for ordered dither, give him F-S. */ - if (cinfo->dither_mode != JDITHER_NONE) - cinfo->dither_mode = JDITHER_FS; - - /* Allocate Floyd-Steinberg workspace if necessary. - * This isn't really needed until pass 2, but again it is FAR storage. - * Although we will cope with a later change in dither_mode, - * we do not promise to honor max_memory_to_use if dither_mode changes. - */ - if (cinfo->dither_mode == JDITHER_FS) { - cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) ((cinfo->output_width + 2) * (3 * SIZEOF(FSERROR)))); - /* Might as well create the error-limiting table too. */ - init_error_limit(cinfo); - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpeg/jutils.c b/jpeg/jutils.c deleted file mode 100755 index 5b16b6d..0000000 --- a/jpeg/jutils.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * jutils.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2009-2011 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains tables and miscellaneous utility routines needed - * for both compression and decompression. - * Note we prefix all global names with "j" to minimize conflicts with - * a surrounding application. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" - - -/* - * jpeg_zigzag_order[i] is the zigzag-order position of the i'th element - * of a DCT block read in natural order (left to right, top to bottom). - */ - -#if 0 /* This table is not actually needed in v6a */ - -const int jpeg_zigzag_order[DCTSIZE2] = { - 0, 1, 5, 6, 14, 15, 27, 28, - 2, 4, 7, 13, 16, 26, 29, 42, - 3, 8, 12, 17, 25, 30, 41, 43, - 9, 11, 18, 24, 31, 40, 44, 53, - 10, 19, 23, 32, 39, 45, 52, 54, - 20, 22, 33, 38, 46, 51, 55, 60, - 21, 34, 37, 47, 50, 56, 59, 61, - 35, 36, 48, 49, 57, 58, 62, 63 -}; - -#endif - -/* - * jpeg_natural_order[i] is the natural-order position of the i'th element - * of zigzag order. - * - * When reading corrupted data, the Huffman decoders could attempt - * to reference an entry beyond the end of this array (if the decoded - * zero run length reaches past the end of the block). To prevent - * wild stores without adding an inner-loop test, we put some extra - * "63"s after the real entries. This will cause the extra coefficient - * to be stored in location 63 of the block, not somewhere random. - * The worst case would be a run-length of 15, which means we need 16 - * fake entries. - */ - -const int jpeg_natural_order[DCTSIZE2+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order7[7*7+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 14, 21, 28, 35, - 42, 49, 50, 43, 36, 29, 22, 30, - 37, 44, 51, 52, 45, 38, 46, 53, - 54, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order6[6*6+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 41, 34, 27, - 20, 13, 21, 28, 35, 42, 43, 36, - 29, 37, 44, 45, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order5[5*5+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 12, - 19, 26, 33, 34, 27, 20, 28, 35, - 36, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order4[4*4+16] = { - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 25, 18, 11, 19, 26, 27, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order3[3*3+16] = { - 0, 1, 8, 16, 9, 2, 10, 17, - 18, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - -const int jpeg_natural_order2[2*2+16] = { - 0, 1, 8, 9, - 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */ - 63, 63, 63, 63, 63, 63, 63, 63 -}; - - -/* - * Arithmetic utilities - */ - -GLOBAL(long) -jdiv_round_up (long a, long b) -/* Compute a/b rounded up to next integer, ie, ceil(a/b) */ -/* Assumes a >= 0, b > 0 */ -{ - return (a + b - 1L) / b; -} - - -GLOBAL(long) -jround_up (long a, long b) -/* Compute a rounded up to next multiple of b, ie, ceil(a/b)*b */ -/* Assumes a >= 0, b > 0 */ -{ - a += b - 1L; - return a - (a % b); -} - - -/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays - * and coefficient-block arrays. This won't work on 80x86 because the arrays - * are FAR and we're assuming a small-pointer memory model. However, some - * DOS compilers provide far-pointer versions of memcpy() and memset() even - * in the small-model libraries. These will be used if USE_FMEM is defined. - * Otherwise, the routines below do it the hard way. (The performance cost - * is not all that great, because these routines aren't very heavily used.) - */ - -#ifndef NEED_FAR_POINTERS /* normal case, same as regular macro */ -#define FMEMCOPY(dest,src,size) MEMCOPY(dest,src,size) -#else /* 80x86 case, define if we can */ -#ifdef USE_FMEM -#define FMEMCOPY(dest,src,size) _fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size)) -#else -/* This function is for use by the FMEMZERO macro defined in jpegint.h. - * Do not call this function directly, use the FMEMZERO macro instead. - */ -GLOBAL(void) -jzero_far (void FAR * target, size_t bytestozero) -/* Zero out a chunk of FAR memory. */ -/* This might be sample-array data, block-array data, or alloc_large data. */ -{ - register char FAR * ptr = (char FAR *) target; - register size_t count; - - for (count = bytestozero; count > 0; count--) { - *ptr++ = 0; - } -} -#endif -#endif - - -GLOBAL(void) -jcopy_sample_rows (JSAMPARRAY input_array, int source_row, - JSAMPARRAY output_array, int dest_row, - int num_rows, JDIMENSION num_cols) -/* Copy some rows of samples from one place to another. - * num_rows rows are copied from input_array[source_row++] - * to output_array[dest_row++]; these areas may overlap for duplication. - * The source and destination arrays must be at least as wide as num_cols. - */ -{ - register JSAMPROW inptr, outptr; -#ifdef FMEMCOPY - register size_t count = (size_t) (num_cols * SIZEOF(JSAMPLE)); -#else - register JDIMENSION count; -#endif - register int row; - - input_array += source_row; - output_array += dest_row; - - for (row = num_rows; row > 0; row--) { - inptr = *input_array++; - outptr = *output_array++; -#ifdef FMEMCOPY - FMEMCOPY(outptr, inptr, count); -#else - for (count = num_cols; count > 0; count--) - *outptr++ = *inptr++; /* needn't bother with GETJSAMPLE() here */ -#endif - } -} - - -GLOBAL(void) -jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row, - JDIMENSION num_blocks) -/* Copy a row of coefficient blocks from one place to another. */ -{ -#ifdef FMEMCOPY - FMEMCOPY(output_row, input_row, num_blocks * (DCTSIZE2 * SIZEOF(JCOEF))); -#else - register JCOEFPTR inptr, outptr; - register long count; - - inptr = (JCOEFPTR) input_row; - outptr = (JCOEFPTR) output_row; - for (count = (long) num_blocks * DCTSIZE2; count > 0; count--) { - *outptr++ = *inptr++; - } -#endif -} diff --git a/jpeg/jversion.h b/jpeg/jversion.h deleted file mode 100755 index 5d49151..0000000 --- a/jpeg/jversion.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * jversion.h - * - * Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains software version identification. - */ - - -#define JVERSION "8d 15-Jan-2012" - -#define JCOPYRIGHT "Copyright (C) 2012, Thomas G. Lane, Guido Vollbeding" diff --git a/jpeg/libjpeg.map b/jpeg/libjpeg.map deleted file mode 100755 index ac77dca..0000000 --- a/jpeg/libjpeg.map +++ /dev/null @@ -1,4 +0,0 @@ -LIBJPEG_8.0 { - global: - *; -}; diff --git a/jpeg/libjpeg.txt b/jpeg/libjpeg.txt deleted file mode 100755 index 9702669..0000000 --- a/jpeg/libjpeg.txt +++ /dev/null @@ -1,3085 +0,0 @@ -USING THE IJG JPEG LIBRARY - -Copyright (C) 1994-2011, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file describes how to use the IJG JPEG library within an application -program. Read it if you want to write a program that uses the library. - -The file example.c provides heavily commented skeleton code for calling the -JPEG library. Also see jpeglib.h (the include file to be used by application -programs) for full details about data structures and function parameter lists. -The library source code, of course, is the ultimate reference. - -Note that there have been *major* changes from the application interface -presented by IJG version 4 and earlier versions. The old design had several -inherent limitations, and it had accumulated a lot of cruft as we added -features while trying to minimize application-interface changes. We have -sacrificed backward compatibility in the version 5 rewrite, but we think the -improvements justify this. - - -TABLE OF CONTENTS ------------------ - -Overview: - Functions provided by the library - Outline of typical usage -Basic library usage: - Data formats - Compression details - Decompression details - Mechanics of usage: include files, linking, etc -Advanced features: - Compression parameter selection - Decompression parameter selection - Special color spaces - Error handling - Compressed data handling (source and destination managers) - I/O suspension - Progressive JPEG support - Buffered-image mode - Abbreviated datastreams and multiple images - Special markers - Raw (downsampled) image data - Really raw data: DCT coefficients - Progress monitoring - Memory management - Memory usage - Library compile-time options - Portability considerations - Notes for MS-DOS implementors - -You should read at least the overview and basic usage sections before trying -to program with the library. The sections on advanced features can be read -if and when you need them. - - -OVERVIEW -======== - -Functions provided by the library ---------------------------------- - -The IJG JPEG library provides C code to read and write JPEG-compressed image -files. The surrounding application program receives or supplies image data a -scanline at a time, using a straightforward uncompressed image format. All -details of color conversion and other preprocessing/postprocessing can be -handled by the library. - -The library includes a substantial amount of code that is not covered by the -JPEG standard but is necessary for typical applications of JPEG. These -functions preprocess the image before JPEG compression or postprocess it after -decompression. They include colorspace conversion, downsampling/upsampling, -and color quantization. The application indirectly selects use of this code -by specifying the format in which it wishes to supply or receive image data. -For example, if colormapped output is requested, then the decompression -library automatically invokes color quantization. - -A wide range of quality vs. speed tradeoffs are possible in JPEG processing, -and even more so in decompression postprocessing. The decompression library -provides multiple implementations that cover most of the useful tradeoffs, -ranging from very-high-quality down to fast-preview operation. On the -compression side we have generally not provided low-quality choices, since -compression is normally less time-critical. It should be understood that the -low-quality modes may not meet the JPEG standard's accuracy requirements; -nonetheless, they are useful for viewers. - -A word about functions *not* provided by the library. We handle a subset of -the ISO JPEG standard; most baseline, extended-sequential, and progressive -JPEG processes are supported. (Our subset includes all features now in common -use.) Unsupported ISO options include: - * Hierarchical storage - * Lossless JPEG - * DNL marker - * Nonintegral subsampling ratios -We support both 8- and 12-bit data precision, but this is a compile-time -choice rather than a run-time choice; hence it is difficult to use both -precisions in a single application. - -By itself, the library handles only interchange JPEG datastreams --- in -particular the widely used JFIF file format. The library can be used by -surrounding code to process interchange or abbreviated JPEG datastreams that -are embedded in more complex file formats. (For example, this library is -used by the free LIBTIFF library to support JPEG compression in TIFF.) - - -Outline of typical usage ------------------------- - -The rough outline of a JPEG compression operation is: - - Allocate and initialize a JPEG compression object - Specify the destination for the compressed data (eg, a file) - Set parameters for compression, including image size & colorspace - jpeg_start_compress(...); - while (scan lines remain to be written) - jpeg_write_scanlines(...); - jpeg_finish_compress(...); - Release the JPEG compression object - -A JPEG compression object holds parameters and working state for the JPEG -library. We make creation/destruction of the object separate from starting -or finishing compression of an image; the same object can be re-used for a -series of image compression operations. This makes it easy to re-use the -same parameter settings for a sequence of images. Re-use of a JPEG object -also has important implications for processing abbreviated JPEG datastreams, -as discussed later. - -The image data to be compressed is supplied to jpeg_write_scanlines() from -in-memory buffers. If the application is doing file-to-file compression, -reading image data from the source file is the application's responsibility. -The library emits compressed data by calling a "data destination manager", -which typically will write the data into a file; but the application can -provide its own destination manager to do something else. - -Similarly, the rough outline of a JPEG decompression operation is: - - Allocate and initialize a JPEG decompression object - Specify the source of the compressed data (eg, a file) - Call jpeg_read_header() to obtain image info - Set parameters for decompression - jpeg_start_decompress(...); - while (scan lines remain to be read) - jpeg_read_scanlines(...); - jpeg_finish_decompress(...); - Release the JPEG decompression object - -This is comparable to the compression outline except that reading the -datastream header is a separate step. This is helpful because information -about the image's size, colorspace, etc is available when the application -selects decompression parameters. For example, the application can choose an -output scaling ratio that will fit the image into the available screen size. - -The decompression library obtains compressed data by calling a data source -manager, which typically will read the data from a file; but other behaviors -can be obtained with a custom source manager. Decompressed data is delivered -into in-memory buffers passed to jpeg_read_scanlines(). - -It is possible to abort an incomplete compression or decompression operation -by calling jpeg_abort(); or, if you do not need to retain the JPEG object, -simply release it by calling jpeg_destroy(). - -JPEG compression and decompression objects are two separate struct types. -However, they share some common fields, and certain routines such as -jpeg_destroy() can work on either type of object. - -The JPEG library has no static variables: all state is in the compression -or decompression object. Therefore it is possible to process multiple -compression and decompression operations concurrently, using multiple JPEG -objects. - -Both compression and decompression can be done in an incremental memory-to- -memory fashion, if suitable source/destination managers are used. See the -section on "I/O suspension" for more details. - - -BASIC LIBRARY USAGE -=================== - -Data formats ------------- - -Before diving into procedural details, it is helpful to understand the -image data format that the JPEG library expects or returns. - -The standard input image format is a rectangular array of pixels, with each -pixel having the same number of "component" or "sample" values (color -channels). You must specify how many components there are and the colorspace -interpretation of the components. Most applications will use RGB data -(three components per pixel) or grayscale data (one component per pixel). -PLEASE NOTE THAT RGB DATA IS THREE SAMPLES PER PIXEL, GRAYSCALE ONLY ONE. -A remarkable number of people manage to miss this, only to find that their -programs don't work with grayscale JPEG files. - -There is no provision for colormapped input. JPEG files are always full-color -or full grayscale (or sometimes another colorspace such as CMYK). You can -feed in a colormapped image by expanding it to full-color format. However -JPEG often doesn't work very well with source data that has been colormapped, -because of dithering noise. This is discussed in more detail in the JPEG FAQ -and the other references mentioned in the README file. - -Pixels are stored by scanlines, with each scanline running from left to -right. The component values for each pixel are adjacent in the row; for -example, R,G,B,R,G,B,R,G,B,... for 24-bit RGB color. Each scanline is an -array of data type JSAMPLE --- which is typically "unsigned char", unless -you've changed jmorecfg.h. (You can also change the RGB pixel layout, say -to B,G,R order, by modifying jmorecfg.h. But see the restrictions listed in -that file before doing so.) - -A 2-D array of pixels is formed by making a list of pointers to the starts of -scanlines; so the scanlines need not be physically adjacent in memory. Even -if you process just one scanline at a time, you must make a one-element -pointer array to conform to this structure. Pointers to JSAMPLE rows are of -type JSAMPROW, and the pointer to the pointer array is of type JSAMPARRAY. - -The library accepts or supplies one or more complete scanlines per call. -It is not possible to process part of a row at a time. Scanlines are always -processed top-to-bottom. You can process an entire image in one call if you -have it all in memory, but usually it's simplest to process one scanline at -a time. - -For best results, source data values should have the precision specified by -BITS_IN_JSAMPLE (normally 8 bits). For instance, if you choose to compress -data that's only 6 bits/channel, you should left-justify each value in a -byte before passing it to the compressor. If you need to compress data -that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 12. -(See "Library compile-time options", later.) - - -The data format returned by the decompressor is the same in all details, -except that colormapped output is supported. (Again, a JPEG file is never -colormapped. But you can ask the decompressor to perform on-the-fly color -quantization to deliver colormapped output.) If you request colormapped -output then the returned data array contains a single JSAMPLE per pixel; -its value is an index into a color map. The color map is represented as -a 2-D JSAMPARRAY in which each row holds the values of one color component, -that is, colormap[i][j] is the value of the i'th color component for pixel -value (map index) j. Note that since the colormap indexes are stored in -JSAMPLEs, the maximum number of colors is limited by the size of JSAMPLE -(ie, at most 256 colors for an 8-bit JPEG library). - - -Compression details -------------------- - -Here we revisit the JPEG compression outline given in the overview. - -1. Allocate and initialize a JPEG compression object. - -A JPEG compression object is a "struct jpeg_compress_struct". (It also has -a bunch of subsidiary structures which are allocated via malloc(), but the -application doesn't control those directly.) This struct can be just a local -variable in the calling routine, if a single routine is going to execute the -whole JPEG compression sequence. Otherwise it can be static or allocated -from malloc(). - -You will also need a structure representing a JPEG error handler. The part -of this that the library cares about is a "struct jpeg_error_mgr". If you -are providing your own error handler, you'll typically want to embed the -jpeg_error_mgr struct in a larger structure; this is discussed later under -"Error handling". For now we'll assume you are just using the default error -handler. The default error handler will print JPEG error/warning messages -on stderr, and it will call exit() if a fatal error occurs. - -You must initialize the error handler structure, store a pointer to it into -the JPEG object's "err" field, and then call jpeg_create_compress() to -initialize the rest of the JPEG object. - -Typical code for this step, if you are using the default error handler, is - - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; - ... - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_compress(&cinfo); - -jpeg_create_compress allocates a small amount of memory, so it could fail -if you are out of memory. In that case it will exit via the error handler; -that's why the error handler must be initialized first. - - -2. Specify the destination for the compressed data (eg, a file). - -As previously mentioned, the JPEG library delivers compressed data to a -"data destination" module. The library includes one data destination -module which knows how to write to a stdio stream. You can use your own -destination module if you want to do something else, as discussed later. - -If you use the standard destination module, you must open the target stdio -stream beforehand. Typical code for this step looks like: - - FILE * outfile; - ... - if ((outfile = fopen(filename, "wb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_dest(&cinfo, outfile); - -where the last line invokes the standard destination module. - -WARNING: it is critical that the binary compressed data be delivered to the -output file unchanged. On non-Unix systems the stdio library may perform -newline translation or otherwise corrupt binary data. To suppress this -behavior, you may need to use a "b" option to fopen (as shown above), or use -setmode() or another routine to put the stdio stream in binary mode. See -cjpeg.c and djpeg.c for code that has been found to work on many systems. - -You can select the data destination after setting other parameters (step 3), -if that's more convenient. You may not change the destination between -calling jpeg_start_compress() and jpeg_finish_compress(). - - -3. Set parameters for compression, including image size & colorspace. - -You must supply information about the source image by setting the following -fields in the JPEG object (cinfo structure): - - image_width Width of image, in pixels - image_height Height of image, in pixels - input_components Number of color channels (samples per pixel) - in_color_space Color space of source image - -The image dimensions are, hopefully, obvious. JPEG supports image dimensions -of 1 to 64K pixels in either direction. The input color space is typically -RGB or grayscale, and input_components is 3 or 1 accordingly. (See "Special -color spaces", later, for more info.) The in_color_space field must be -assigned one of the J_COLOR_SPACE enum constants, typically JCS_RGB or -JCS_GRAYSCALE. - -JPEG has a large number of compression parameters that determine how the -image is encoded. Most applications don't need or want to know about all -these parameters. You can set all the parameters to reasonable defaults by -calling jpeg_set_defaults(); then, if there are particular values you want -to change, you can do so after that. The "Compression parameter selection" -section tells about all the parameters. - -You must set in_color_space correctly before calling jpeg_set_defaults(), -because the defaults depend on the source image colorspace. However the -other three source image parameters need not be valid until you call -jpeg_start_compress(). There's no harm in calling jpeg_set_defaults() more -than once, if that happens to be convenient. - -Typical code for a 24-bit RGB source image is - - cinfo.image_width = Width; /* image width and height, in pixels */ - cinfo.image_height = Height; - cinfo.input_components = 3; /* # of color components per pixel */ - cinfo.in_color_space = JCS_RGB; /* colorspace of input image */ - - jpeg_set_defaults(&cinfo); - /* Make optional parameter settings here */ - - -4. jpeg_start_compress(...); - -After you have established the data destination and set all the necessary -source image info and other parameters, call jpeg_start_compress() to begin -a compression cycle. This will initialize internal state, allocate working -storage, and emit the first few bytes of the JPEG datastream header. - -Typical code: - - jpeg_start_compress(&cinfo, TRUE); - -The "TRUE" parameter ensures that a complete JPEG interchange datastream -will be written. This is appropriate in most cases. If you think you might -want to use an abbreviated datastream, read the section on abbreviated -datastreams, below. - -Once you have called jpeg_start_compress(), you may not alter any JPEG -parameters or other fields of the JPEG object until you have completed -the compression cycle. - - -5. while (scan lines remain to be written) - jpeg_write_scanlines(...); - -Now write all the required image data by calling jpeg_write_scanlines() -one or more times. You can pass one or more scanlines in each call, up -to the total image height. In most applications it is convenient to pass -just one or a few scanlines at a time. The expected format for the passed -data is discussed under "Data formats", above. - -Image data should be written in top-to-bottom scanline order. The JPEG spec -contains some weasel wording about how top and bottom are application-defined -terms (a curious interpretation of the English language...) but if you want -your files to be compatible with everyone else's, you WILL use top-to-bottom -order. If the source data must be read in bottom-to-top order, you can use -the JPEG library's virtual array mechanism to invert the data efficiently. -Examples of this can be found in the sample application cjpeg. - -The library maintains a count of the number of scanlines written so far -in the next_scanline field of the JPEG object. Usually you can just use -this variable as the loop counter, so that the loop test looks like -"while (cinfo.next_scanline < cinfo.image_height)". - -Code for this step depends heavily on the way that you store the source data. -example.c shows the following code for the case of a full-size 2-D source -array containing 3-byte RGB pixels: - - JSAMPROW row_pointer[1]; /* pointer to a single row */ - int row_stride; /* physical row width in buffer */ - - row_stride = image_width * 3; /* JSAMPLEs per row in image_buffer */ - - while (cinfo.next_scanline < cinfo.image_height) { - row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride]; - jpeg_write_scanlines(&cinfo, row_pointer, 1); - } - -jpeg_write_scanlines() returns the number of scanlines actually written. -This will normally be equal to the number passed in, so you can usually -ignore the return value. It is different in just two cases: - * If you try to write more scanlines than the declared image height, - the additional scanlines are ignored. - * If you use a suspending data destination manager, output buffer overrun - will cause the compressor to return before accepting all the passed lines. - This feature is discussed under "I/O suspension", below. The normal - stdio destination manager will NOT cause this to happen. -In any case, the return value is the same as the change in the value of -next_scanline. - - -6. jpeg_finish_compress(...); - -After all the image data has been written, call jpeg_finish_compress() to -complete the compression cycle. This step is ESSENTIAL to ensure that the -last bufferload of data is written to the data destination. -jpeg_finish_compress() also releases working memory associated with the JPEG -object. - -Typical code: - - jpeg_finish_compress(&cinfo); - -If using the stdio destination manager, don't forget to close the output -stdio stream (if necessary) afterwards. - -If you have requested a multi-pass operating mode, such as Huffman code -optimization, jpeg_finish_compress() will perform the additional passes using -data buffered by the first pass. In this case jpeg_finish_compress() may take -quite a while to complete. With the default compression parameters, this will -not happen. - -It is an error to call jpeg_finish_compress() before writing the necessary -total number of scanlines. If you wish to abort compression, call -jpeg_abort() as discussed below. - -After completing a compression cycle, you may dispose of the JPEG object -as discussed next, or you may use it to compress another image. In that case -return to step 2, 3, or 4 as appropriate. If you do not change the -destination manager, the new datastream will be written to the same target. -If you do not change any JPEG parameters, the new datastream will be written -with the same parameters as before. Note that you can change the input image -dimensions freely between cycles, but if you change the input colorspace, you -should call jpeg_set_defaults() to adjust for the new colorspace; and then -you'll need to repeat all of step 3. - - -7. Release the JPEG compression object. - -When you are done with a JPEG compression object, destroy it by calling -jpeg_destroy_compress(). This will free all subsidiary memory (regardless of -the previous state of the object). Or you can call jpeg_destroy(), which -works for either compression or decompression objects --- this may be more -convenient if you are sharing code between compression and decompression -cases. (Actually, these routines are equivalent except for the declared type -of the passed pointer. To avoid gripes from ANSI C compilers, jpeg_destroy() -should be passed a j_common_ptr.) - -If you allocated the jpeg_compress_struct structure from malloc(), freeing -it is your responsibility --- jpeg_destroy() won't. Ditto for the error -handler structure. - -Typical code: - - jpeg_destroy_compress(&cinfo); - - -8. Aborting. - -If you decide to abort a compression cycle before finishing, you can clean up -in either of two ways: - -* If you don't need the JPEG object any more, just call - jpeg_destroy_compress() or jpeg_destroy() to release memory. This is - legitimate at any point after calling jpeg_create_compress() --- in fact, - it's safe even if jpeg_create_compress() fails. - -* If you want to re-use the JPEG object, call jpeg_abort_compress(), or call - jpeg_abort() which works on both compression and decompression objects. - This will return the object to an idle state, releasing any working memory. - jpeg_abort() is allowed at any time after successful object creation. - -Note that cleaning up the data destination, if required, is your -responsibility; neither of these routines will call term_destination(). -(See "Compressed data handling", below, for more about that.) - -jpeg_destroy() and jpeg_abort() are the only safe calls to make on a JPEG -object that has reported an error by calling error_exit (see "Error handling" -for more info). The internal state of such an object is likely to be out of -whack. Either of these two routines will return the object to a known state. - - -Decompression details ---------------------- - -Here we revisit the JPEG decompression outline given in the overview. - -1. Allocate and initialize a JPEG decompression object. - -This is just like initialization for compression, as discussed above, -except that the object is a "struct jpeg_decompress_struct" and you -call jpeg_create_decompress(). Error handling is exactly the same. - -Typical code: - - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; - ... - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - -(Both here and in the IJG code, we usually use variable name "cinfo" for -both compression and decompression objects.) - - -2. Specify the source of the compressed data (eg, a file). - -As previously mentioned, the JPEG library reads compressed data from a "data -source" module. The library includes one data source module which knows how -to read from a stdio stream. You can use your own source module if you want -to do something else, as discussed later. - -If you use the standard source module, you must open the source stdio stream -beforehand. Typical code for this step looks like: - - FILE * infile; - ... - if ((infile = fopen(filename, "rb")) == NULL) { - fprintf(stderr, "can't open %s\n", filename); - exit(1); - } - jpeg_stdio_src(&cinfo, infile); - -where the last line invokes the standard source module. - -WARNING: it is critical that the binary compressed data be read unchanged. -On non-Unix systems the stdio library may perform newline translation or -otherwise corrupt binary data. To suppress this behavior, you may need to use -a "b" option to fopen (as shown above), or use setmode() or another routine to -put the stdio stream in binary mode. See cjpeg.c and djpeg.c for code that -has been found to work on many systems. - -You may not change the data source between calling jpeg_read_header() and -jpeg_finish_decompress(). If you wish to read a series of JPEG images from -a single source file, you should repeat the jpeg_read_header() to -jpeg_finish_decompress() sequence without reinitializing either the JPEG -object or the data source module; this prevents buffered input data from -being discarded. - - -3. Call jpeg_read_header() to obtain image info. - -Typical code for this step is just - - jpeg_read_header(&cinfo, TRUE); - -This will read the source datastream header markers, up to the beginning -of the compressed data proper. On return, the image dimensions and other -info have been stored in the JPEG object. The application may wish to -consult this information before selecting decompression parameters. - -More complex code is necessary if - * A suspending data source is used --- in that case jpeg_read_header() - may return before it has read all the header data. See "I/O suspension", - below. The normal stdio source manager will NOT cause this to happen. - * Abbreviated JPEG files are to be processed --- see the section on - abbreviated datastreams. Standard applications that deal only in - interchange JPEG files need not be concerned with this case either. - -It is permissible to stop at this point if you just wanted to find out the -image dimensions and other header info for a JPEG file. In that case, -call jpeg_destroy() when you are done with the JPEG object, or call -jpeg_abort() to return it to an idle state before selecting a new data -source and reading another header. - - -4. Set parameters for decompression. - -jpeg_read_header() sets appropriate default decompression parameters based on -the properties of the image (in particular, its colorspace). However, you -may well want to alter these defaults before beginning the decompression. -For example, the default is to produce full color output from a color file. -If you want colormapped output you must ask for it. Other options allow the -returned image to be scaled and allow various speed/quality tradeoffs to be -selected. "Decompression parameter selection", below, gives details. - -If the defaults are appropriate, nothing need be done at this step. - -Note that all default values are set by each call to jpeg_read_header(). -If you reuse a decompression object, you cannot expect your parameter -settings to be preserved across cycles, as you can for compression. -You must set desired parameter values each time. - - -5. jpeg_start_decompress(...); - -Once the parameter values are satisfactory, call jpeg_start_decompress() to -begin decompression. This will initialize internal state, allocate working -memory, and prepare for returning data. - -Typical code is just - - jpeg_start_decompress(&cinfo); - -If you have requested a multi-pass operating mode, such as 2-pass color -quantization, jpeg_start_decompress() will do everything needed before data -output can begin. In this case jpeg_start_decompress() may take quite a while -to complete. With a single-scan (non progressive) JPEG file and default -decompression parameters, this will not happen; jpeg_start_decompress() will -return quickly. - -After this call, the final output image dimensions, including any requested -scaling, are available in the JPEG object; so is the selected colormap, if -colormapped output has been requested. Useful fields include - - output_width image width and height, as scaled - output_height - out_color_components # of color components in out_color_space - output_components # of color components returned per pixel - colormap the selected colormap, if any - actual_number_of_colors number of entries in colormap - -output_components is 1 (a colormap index) when quantizing colors; otherwise it -equals out_color_components. It is the number of JSAMPLE values that will be -emitted per pixel in the output arrays. - -Typically you will need to allocate data buffers to hold the incoming image. -You will need output_width * output_components JSAMPLEs per scanline in your -output buffer, and a total of output_height scanlines will be returned. - -Note: if you are using the JPEG library's internal memory manager to allocate -data buffers (as djpeg does), then the manager's protocol requires that you -request large buffers *before* calling jpeg_start_decompress(). This is a -little tricky since the output_XXX fields are not normally valid then. You -can make them valid by calling jpeg_calc_output_dimensions() after setting the -relevant parameters (scaling, output color space, and quantization flag). - - -6. while (scan lines remain to be read) - jpeg_read_scanlines(...); - -Now you can read the decompressed image data by calling jpeg_read_scanlines() -one or more times. At each call, you pass in the maximum number of scanlines -to be read (ie, the height of your working buffer); jpeg_read_scanlines() -will return up to that many lines. The return value is the number of lines -actually read. The format of the returned data is discussed under "Data -formats", above. Don't forget that grayscale and color JPEGs will return -different data formats! - -Image data is returned in top-to-bottom scanline order. If you must write -out the image in bottom-to-top order, you can use the JPEG library's virtual -array mechanism to invert the data efficiently. Examples of this can be -found in the sample application djpeg. - -The library maintains a count of the number of scanlines returned so far -in the output_scanline field of the JPEG object. Usually you can just use -this variable as the loop counter, so that the loop test looks like -"while (cinfo.output_scanline < cinfo.output_height)". (Note that the test -should NOT be against image_height, unless you never use scaling. The -image_height field is the height of the original unscaled image.) -The return value always equals the change in the value of output_scanline. - -If you don't use a suspending data source, it is safe to assume that -jpeg_read_scanlines() reads at least one scanline per call, until the -bottom of the image has been reached. - -If you use a buffer larger than one scanline, it is NOT safe to assume that -jpeg_read_scanlines() fills it. (The current implementation returns only a -few scanlines per call, no matter how large a buffer you pass.) So you must -always provide a loop that calls jpeg_read_scanlines() repeatedly until the -whole image has been read. - - -7. jpeg_finish_decompress(...); - -After all the image data has been read, call jpeg_finish_decompress() to -complete the decompression cycle. This causes working memory associated -with the JPEG object to be released. - -Typical code: - - jpeg_finish_decompress(&cinfo); - -If using the stdio source manager, don't forget to close the source stdio -stream if necessary. - -It is an error to call jpeg_finish_decompress() before reading the correct -total number of scanlines. If you wish to abort decompression, call -jpeg_abort() as discussed below. - -After completing a decompression cycle, you may dispose of the JPEG object as -discussed next, or you may use it to decompress another image. In that case -return to step 2 or 3 as appropriate. If you do not change the source -manager, the next image will be read from the same source. - - -8. Release the JPEG decompression object. - -When you are done with a JPEG decompression object, destroy it by calling -jpeg_destroy_decompress() or jpeg_destroy(). The previous discussion of -destroying compression objects applies here too. - -Typical code: - - jpeg_destroy_decompress(&cinfo); - - -9. Aborting. - -You can abort a decompression cycle by calling jpeg_destroy_decompress() or -jpeg_destroy() if you don't need the JPEG object any more, or -jpeg_abort_decompress() or jpeg_abort() if you want to reuse the object. -The previous discussion of aborting compression cycles applies here too. - - -Mechanics of usage: include files, linking, etc ------------------------------------------------ - -Applications using the JPEG library should include the header file jpeglib.h -to obtain declarations of data types and routines. Before including -jpeglib.h, include system headers that define at least the typedefs FILE and -size_t. On ANSI-conforming systems, including is sufficient; on -older Unix systems, you may need to define size_t. - -If the application needs to refer to individual JPEG library error codes, also -include jerror.h to define those symbols. - -jpeglib.h indirectly includes the files jconfig.h and jmorecfg.h. If you are -installing the JPEG header files in a system directory, you will want to -install all four files: jpeglib.h, jerror.h, jconfig.h, jmorecfg.h. - -The most convenient way to include the JPEG code into your executable program -is to prepare a library file ("libjpeg.a", or a corresponding name on non-Unix -machines) and reference it at your link step. If you use only half of the -library (only compression or only decompression), only that much code will be -included from the library, unless your linker is hopelessly brain-damaged. -The supplied makefiles build libjpeg.a automatically (see install.txt). - -While you can build the JPEG library as a shared library if the whim strikes -you, we don't really recommend it. The trouble with shared libraries is that -at some point you'll probably try to substitute a new version of the library -without recompiling the calling applications. That generally doesn't work -because the parameter struct declarations usually change with each new -version. In other words, the library's API is *not* guaranteed binary -compatible across versions; we only try to ensure source-code compatibility. -(In hindsight, it might have been smarter to hide the parameter structs from -applications and introduce a ton of access functions instead. Too late now, -however.) - -On some systems your application may need to set up a signal handler to ensure -that temporary files are deleted if the program is interrupted. This is most -critical if you are on MS-DOS and use the jmemdos.c memory manager back end; -it will try to grab extended memory for temp files, and that space will NOT be -freed automatically. See cjpeg.c or djpeg.c for an example signal handler. - -It may be worth pointing out that the core JPEG library does not actually -require the stdio library: only the default source/destination managers and -error handler need it. You can use the library in a stdio-less environment -if you replace those modules and use jmemnobs.c (or another memory manager of -your own devising). More info about the minimum system library requirements -may be found in jinclude.h. - - -ADVANCED FEATURES -================= - -Compression parameter selection -------------------------------- - -This section describes all the optional parameters you can set for JPEG -compression, as well as the "helper" routines provided to assist in this -task. Proper setting of some parameters requires detailed understanding -of the JPEG standard; if you don't know what a parameter is for, it's best -not to mess with it! See REFERENCES in the README file for pointers to -more info about JPEG. - -It's a good idea to call jpeg_set_defaults() first, even if you plan to set -all the parameters; that way your code is more likely to work with future JPEG -libraries that have additional parameters. For the same reason, we recommend -you use a helper routine where one is provided, in preference to twiddling -cinfo fields directly. - -The helper routines are: - -jpeg_set_defaults (j_compress_ptr cinfo) - This routine sets all JPEG parameters to reasonable defaults, using - only the input image's color space (field in_color_space, which must - already be set in cinfo). Many applications will only need to use - this routine and perhaps jpeg_set_quality(). - -jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace) - Sets the JPEG file's colorspace (field jpeg_color_space) as specified, - and sets other color-space-dependent parameters appropriately. See - "Special color spaces", below, before using this. A large number of - parameters, including all per-component parameters, are set by this - routine; if you want to twiddle individual parameters you should call - jpeg_set_colorspace() before rather than after. - -jpeg_default_colorspace (j_compress_ptr cinfo) - Selects an appropriate JPEG colorspace based on cinfo->in_color_space, - and calls jpeg_set_colorspace(). This is actually a subroutine of - jpeg_set_defaults(). It's broken out in case you want to change - just the colorspace-dependent JPEG parameters. - -jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline) - Constructs JPEG quantization tables appropriate for the indicated - quality setting. The quality value is expressed on the 0..100 scale - recommended by IJG (cjpeg's "-quality" switch uses this routine). - Note that the exact mapping from quality values to tables may change - in future IJG releases as more is learned about DCT quantization. - If the force_baseline parameter is TRUE, then the quantization table - entries are constrained to the range 1..255 for full JPEG baseline - compatibility. In the current implementation, this only makes a - difference for quality settings below 25, and it effectively prevents - very small/low quality files from being generated. The IJG decoder - is capable of reading the non-baseline files generated at low quality - settings when force_baseline is FALSE, but other decoders may not be. - -jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, - boolean force_baseline) - Same as jpeg_set_quality() except that the generated tables are the - sample tables given in the JPEC spec section K.1, multiplied by the - specified scale factor (which is expressed as a percentage; thus - scale_factor = 100 reproduces the spec's tables). Note that larger - scale factors give lower quality. This entry point is useful for - conforming to the Adobe PostScript DCT conventions, but we do not - recommend linear scaling as a user-visible quality scale otherwise. - force_baseline again constrains the computed table entries to 1..255. - -int jpeg_quality_scaling (int quality) - Converts a value on the IJG-recommended quality scale to a linear - scaling percentage. Note that this routine may change or go away - in future releases --- IJG may choose to adopt a scaling method that - can't be expressed as a simple scalar multiplier, in which case the - premise of this routine collapses. Caveat user. - -jpeg_default_qtables (j_compress_ptr cinfo, boolean force_baseline) - Set default quantization tables with linear q_scale_factor[] values - (see below). - -jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, - const unsigned int *basic_table, - int scale_factor, boolean force_baseline) - Allows an arbitrary quantization table to be created. which_tbl - indicates which table slot to fill. basic_table points to an array - of 64 unsigned ints given in normal array order. These values are - multiplied by scale_factor/100 and then clamped to the range 1..65535 - (or to 1..255 if force_baseline is TRUE). - CAUTION: prior to library version 6a, jpeg_add_quant_table expected - the basic table to be given in JPEG zigzag order. If you need to - write code that works with either older or newer versions of this - routine, you must check the library version number. Something like - "#if JPEG_LIB_VERSION >= 61" is the right test. - -jpeg_simple_progression (j_compress_ptr cinfo) - Generates a default scan script for writing a progressive-JPEG file. - This is the recommended method of creating a progressive file, - unless you want to make a custom scan sequence. You must ensure that - the JPEG color space is set correctly before calling this routine. - - -Compression parameters (cinfo fields) include: - -int block_size - Set DCT block size. All N from 1 to 16 are possible. - Default is 8 (baseline format). - Larger values produce higher compression, - smaller values produce higher quality. - An exact DCT stage is possible with 1 or 2. - With the default quality of 75 and default Luminance qtable - the DCT+Quantization stage is lossless for value 1. - Note that values other than 8 require a SmartScale capable decoder, - introduced with IJG JPEG 8. Setting the block_size parameter for - compression works with version 8c and later. - -J_DCT_METHOD dct_method - Selects the algorithm used for the DCT step. Choices are: - JDCT_ISLOW: slow but accurate integer algorithm - JDCT_IFAST: faster, less accurate integer method - JDCT_FLOAT: floating-point method - JDCT_DEFAULT: default method (normally JDCT_ISLOW) - JDCT_FASTEST: fastest method (normally JDCT_IFAST) - The FLOAT method is very slightly more accurate than the ISLOW method, - but may give different results on different machines due to varying - roundoff behavior. The integer methods should give the same results - on all machines. On machines with sufficiently fast FP hardware, the - floating-point method may also be the fastest. The IFAST method is - considerably less accurate than the other two; its use is not - recommended if high quality is a concern. JDCT_DEFAULT and - JDCT_FASTEST are macros configurable by each installation. - -unsigned int scale_num, scale_denom - Scale the image by the fraction scale_num/scale_denom. Default is - 1/1, or no scaling. Currently, the supported scaling ratios are - M/N with all N from 1 to 16, where M is the destination DCT size, - which is 8 by default (see block_size parameter above). - (The library design allows for arbitrary scaling ratios but this - is not likely to be implemented any time soon.) - -J_COLOR_SPACE jpeg_color_space -int num_components - The JPEG color space and corresponding number of components; see - "Special color spaces", below, for more info. We recommend using - jpeg_set_color_space() if you want to change these. - -boolean optimize_coding - TRUE causes the compressor to compute optimal Huffman coding tables - for the image. This requires an extra pass over the data and - therefore costs a good deal of space and time. The default is - FALSE, which tells the compressor to use the supplied or default - Huffman tables. In most cases optimal tables save only a few percent - of file size compared to the default tables. Note that when this is - TRUE, you need not supply Huffman tables at all, and any you do - supply will be overwritten. - -unsigned int restart_interval -int restart_in_rows - To emit restart markers in the JPEG file, set one of these nonzero. - Set restart_interval to specify the exact interval in MCU blocks. - Set restart_in_rows to specify the interval in MCU rows. (If - restart_in_rows is not 0, then restart_interval is set after the - image width in MCUs is computed.) Defaults are zero (no restarts). - One restart marker per MCU row is often a good choice. - NOTE: the overhead of restart markers is higher in grayscale JPEG - files than in color files, and MUCH higher in progressive JPEGs. - If you use restarts, you may want to use larger intervals in those - cases. - -const jpeg_scan_info * scan_info -int num_scans - By default, scan_info is NULL; this causes the compressor to write a - single-scan sequential JPEG file. If not NULL, scan_info points to - an array of scan definition records of length num_scans. The - compressor will then write a JPEG file having one scan for each scan - definition record. This is used to generate noninterleaved or - progressive JPEG files. The library checks that the scan array - defines a valid JPEG scan sequence. (jpeg_simple_progression creates - a suitable scan definition array for progressive JPEG.) This is - discussed further under "Progressive JPEG support". - -boolean do_fancy_downsampling - If TRUE, use direct DCT scaling with DCT size > 8 for downsampling - of chroma components. - If FALSE, use only DCT size <= 8 and simple separate downsampling. - Default is TRUE. - For better image stability in multiple generation compression cycles - it is preferable that this value matches the corresponding - do_fancy_upsampling value in decompression. - -int smoothing_factor - If non-zero, the input image is smoothed; the value should be 1 for - minimal smoothing to 100 for maximum smoothing. Consult jcsample.c - for details of the smoothing algorithm. The default is zero. - -boolean write_JFIF_header - If TRUE, a JFIF APP0 marker is emitted. jpeg_set_defaults() and - jpeg_set_colorspace() set this TRUE if a JFIF-legal JPEG color space - (ie, YCbCr or grayscale) is selected, otherwise FALSE. - -UINT8 JFIF_major_version -UINT8 JFIF_minor_version - The version number to be written into the JFIF marker. - jpeg_set_defaults() initializes the version to 1.01 (major=minor=1). - You should set it to 1.02 (major=1, minor=2) if you plan to write - any JFIF 1.02 extension markers. - -UINT8 density_unit -UINT16 X_density -UINT16 Y_density - The resolution information to be written into the JFIF marker; - not used otherwise. density_unit may be 0 for unknown, - 1 for dots/inch, or 2 for dots/cm. The default values are 0,1,1 - indicating square pixels of unknown size. - -boolean write_Adobe_marker - If TRUE, an Adobe APP14 marker is emitted. jpeg_set_defaults() and - jpeg_set_colorspace() set this TRUE if JPEG color space RGB, CMYK, - or YCCK is selected, otherwise FALSE. It is generally a bad idea - to set both write_JFIF_header and write_Adobe_marker. In fact, - you probably shouldn't change the default settings at all --- the - default behavior ensures that the JPEG file's color space can be - recognized by the decoder. - -JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS] - Pointers to coefficient quantization tables, one per table slot, - or NULL if no table is defined for a slot. Usually these should - be set via one of the above helper routines; jpeg_add_quant_table() - is general enough to define any quantization table. The other - routines will set up table slot 0 for luminance quality and table - slot 1 for chrominance. - -int q_scale_factor[NUM_QUANT_TBLS] - Linear quantization scaling factors (percentage, initialized 100) - for use with jpeg_default_qtables(). - See rdswitch.c and cjpeg.c for an example of usage. - Note that the q_scale_factor[] fields are the "linear" scales, so you - have to convert from user-defined ratings via jpeg_quality_scaling(). - Here is an example code which corresponds to cjpeg -quality 90,70: - - jpeg_set_defaults(cinfo); - - /* Set luminance quality 90. */ - cinfo->q_scale_factor[0] = jpeg_quality_scaling(90); - /* Set chrominance quality 70. */ - cinfo->q_scale_factor[1] = jpeg_quality_scaling(70); - - jpeg_default_qtables(cinfo, force_baseline); - - CAUTION: You must also set 1x1 subsampling for efficient separate - color quality selection, since the default value used by library - is 2x2: - - cinfo->comp_info[0].v_samp_factor = 1; - cinfo->comp_info[0].h_samp_factor = 1; - -JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS] -JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS] - Pointers to Huffman coding tables, one per table slot, or NULL if - no table is defined for a slot. Slots 0 and 1 are filled with the - JPEG sample tables by jpeg_set_defaults(). If you need to allocate - more table structures, jpeg_alloc_huff_table() may be used. - Note that optimal Huffman tables can be computed for an image - by setting optimize_coding, as discussed above; there's seldom - any need to mess with providing your own Huffman tables. - - -The actual dimensions of the JPEG image that will be written to the file are -given by the following fields. These are computed from the input image -dimensions and the compression parameters by jpeg_start_compress(). You can -also call jpeg_calc_jpeg_dimensions() to obtain the values that will result -from the current parameter settings. This can be useful if you are trying -to pick a scaling ratio that will get close to a desired target size. - -JDIMENSION jpeg_width Actual dimensions of output image. -JDIMENSION jpeg_height - - -Per-component parameters are stored in the struct cinfo.comp_info[i] for -component number i. Note that components here refer to components of the -JPEG color space, *not* the source image color space. A suitably large -comp_info[] array is allocated by jpeg_set_defaults(); if you choose not -to use that routine, it's up to you to allocate the array. - -int component_id - The one-byte identifier code to be recorded in the JPEG file for - this component. For the standard color spaces, we recommend you - leave the default values alone. - -int h_samp_factor -int v_samp_factor - Horizontal and vertical sampling factors for the component; must - be 1..4 according to the JPEG standard. Note that larger sampling - factors indicate a higher-resolution component; many people find - this behavior quite unintuitive. The default values are 2,2 for - luminance components and 1,1 for chrominance components, except - for grayscale where 1,1 is used. - -int quant_tbl_no - Quantization table number for component. The default value is - 0 for luminance components and 1 for chrominance components. - -int dc_tbl_no -int ac_tbl_no - DC and AC entropy coding table numbers. The default values are - 0 for luminance components and 1 for chrominance components. - -int component_index - Must equal the component's index in comp_info[]. (Beginning in - release v6, the compressor library will fill this in automatically; - you don't have to.) - - -Decompression parameter selection ---------------------------------- - -Decompression parameter selection is somewhat simpler than compression -parameter selection, since all of the JPEG internal parameters are -recorded in the source file and need not be supplied by the application. -(Unless you are working with abbreviated files, in which case see -"Abbreviated datastreams", below.) Decompression parameters control -the postprocessing done on the image to deliver it in a format suitable -for the application's use. Many of the parameters control speed/quality -tradeoffs, in which faster decompression may be obtained at the price of -a poorer-quality image. The defaults select the highest quality (slowest) -processing. - -The following fields in the JPEG object are set by jpeg_read_header() and -may be useful to the application in choosing decompression parameters: - -JDIMENSION image_width Width and height of image -JDIMENSION image_height -int num_components Number of color components -J_COLOR_SPACE jpeg_color_space Colorspace of image -boolean saw_JFIF_marker TRUE if a JFIF APP0 marker was seen - UINT8 JFIF_major_version Version information from JFIF marker - UINT8 JFIF_minor_version - UINT8 density_unit Resolution data from JFIF marker - UINT16 X_density - UINT16 Y_density -boolean saw_Adobe_marker TRUE if an Adobe APP14 marker was seen - UINT8 Adobe_transform Color transform code from Adobe marker - -The JPEG color space, unfortunately, is something of a guess since the JPEG -standard proper does not provide a way to record it. In practice most files -adhere to the JFIF or Adobe conventions, and the decoder will recognize these -correctly. See "Special color spaces", below, for more info. - - -The decompression parameters that determine the basic properties of the -returned image are: - -J_COLOR_SPACE out_color_space - Output color space. jpeg_read_header() sets an appropriate default - based on jpeg_color_space; typically it will be RGB or grayscale. - The application can change this field to request output in a different - colorspace. For example, set it to JCS_GRAYSCALE to get grayscale - output from a color file. (This is useful for previewing: grayscale - output is faster than full color since the color components need not - be processed.) Note that not all possible color space transforms are - currently implemented; you may need to extend jdcolor.c if you want an - unusual conversion. - -unsigned int scale_num, scale_denom - Scale the image by the fraction scale_num/scale_denom. Currently, - the supported scaling ratios are M/N with all M from 1 to 16, where - N is the source DCT size, which is 8 for baseline JPEG. (The library - design allows for arbitrary scaling ratios but this is not likely - to be implemented any time soon.) The values are initialized by - jpeg_read_header() with the source DCT size. For baseline JPEG - this is 8/8. If you change only the scale_num value while leaving - the other unchanged, then this specifies the DCT scaled size to be - applied on the given input. For baseline JPEG this is equivalent - to M/8 scaling, since the source DCT size for baseline JPEG is 8. - Smaller scaling ratios permit significantly faster decoding since - fewer pixels need be processed and a simpler IDCT method can be used. - -boolean quantize_colors - If set TRUE, colormapped output will be delivered. Default is FALSE, - meaning that full-color output will be delivered. - -The next three parameters are relevant only if quantize_colors is TRUE. - -int desired_number_of_colors - Maximum number of colors to use in generating a library-supplied color - map (the actual number of colors is returned in a different field). - Default 256. Ignored when the application supplies its own color map. - -boolean two_pass_quantize - If TRUE, an extra pass over the image is made to select a custom color - map for the image. This usually looks a lot better than the one-size- - fits-all colormap that is used otherwise. Default is TRUE. Ignored - when the application supplies its own color map. - -J_DITHER_MODE dither_mode - Selects color dithering method. Supported values are: - JDITHER_NONE no dithering: fast, very low quality - JDITHER_ORDERED ordered dither: moderate speed and quality - JDITHER_FS Floyd-Steinberg dither: slow, high quality - Default is JDITHER_FS. (At present, ordered dither is implemented - only in the single-pass, standard-colormap case. If you ask for - ordered dither when two_pass_quantize is TRUE or when you supply - an external color map, you'll get F-S dithering.) - -When quantize_colors is TRUE, the target color map is described by the next -two fields. colormap is set to NULL by jpeg_read_header(). The application -can supply a color map by setting colormap non-NULL and setting -actual_number_of_colors to the map size. Otherwise, jpeg_start_decompress() -selects a suitable color map and sets these two fields itself. -[Implementation restriction: at present, an externally supplied colormap is -only accepted for 3-component output color spaces.] - -JSAMPARRAY colormap - The color map, represented as a 2-D pixel array of out_color_components - rows and actual_number_of_colors columns. Ignored if not quantizing. - CAUTION: if the JPEG library creates its own colormap, the storage - pointed to by this field is released by jpeg_finish_decompress(). - Copy the colormap somewhere else first, if you want to save it. - -int actual_number_of_colors - The number of colors in the color map. - -Additional decompression parameters that the application may set include: - -J_DCT_METHOD dct_method - Selects the algorithm used for the DCT step. Choices are the same - as described above for compression. - -boolean do_fancy_upsampling - If TRUE, use direct DCT scaling with DCT size > 8 for upsampling - of chroma components. - If FALSE, use only DCT size <= 8 and simple separate upsampling. - Default is TRUE. - For better image stability in multiple generation compression cycles - it is preferable that this value matches the corresponding - do_fancy_downsampling value in compression. - -boolean do_block_smoothing - If TRUE, interblock smoothing is applied in early stages of decoding - progressive JPEG files; if FALSE, not. Default is TRUE. Early - progression stages look "fuzzy" with smoothing, "blocky" without. - In any case, block smoothing ceases to be applied after the first few - AC coefficients are known to full accuracy, so it is relevant only - when using buffered-image mode for progressive images. - -boolean enable_1pass_quant -boolean enable_external_quant -boolean enable_2pass_quant - These are significant only in buffered-image mode, which is - described in its own section below. - - -The output image dimensions are given by the following fields. These are -computed from the source image dimensions and the decompression parameters -by jpeg_start_decompress(). You can also call jpeg_calc_output_dimensions() -to obtain the values that will result from the current parameter settings. -This can be useful if you are trying to pick a scaling ratio that will get -close to a desired target size. It's also important if you are using the -JPEG library's memory manager to allocate output buffer space, because you -are supposed to request such buffers *before* jpeg_start_decompress(). - -JDIMENSION output_width Actual dimensions of output image. -JDIMENSION output_height -int out_color_components Number of color components in out_color_space. -int output_components Number of color components returned. -int rec_outbuf_height Recommended height of scanline buffer. - -When quantizing colors, output_components is 1, indicating a single color map -index per pixel. Otherwise it equals out_color_components. The output arrays -are required to be output_width * output_components JSAMPLEs wide. - -rec_outbuf_height is the recommended minimum height (in scanlines) of the -buffer passed to jpeg_read_scanlines(). If the buffer is smaller, the -library will still work, but time will be wasted due to unnecessary data -copying. In high-quality modes, rec_outbuf_height is always 1, but some -faster, lower-quality modes set it to larger values (typically 2 to 4). -If you are going to ask for a high-speed processing mode, you may as well -go to the trouble of honoring rec_outbuf_height so as to avoid data copying. -(An output buffer larger than rec_outbuf_height lines is OK, but won't -provide any material speed improvement over that height.) - - -Special color spaces --------------------- - -The JPEG standard itself is "color blind" and doesn't specify any particular -color space. It is customary to convert color data to a luminance/chrominance -color space before compressing, since this permits greater compression. The -existing de-facto JPEG file format standards specify YCbCr or grayscale data -(JFIF), or grayscale, RGB, YCbCr, CMYK, or YCCK (Adobe). For special -applications such as multispectral images, other color spaces can be used, -but it must be understood that such files will be unportable. - -The JPEG library can handle the most common colorspace conversions (namely -RGB <=> YCbCr and CMYK <=> YCCK). It can also deal with data of an unknown -color space, passing it through without conversion. If you deal extensively -with an unusual color space, you can easily extend the library to understand -additional color spaces and perform appropriate conversions. - -For compression, the source data's color space is specified by field -in_color_space. This is transformed to the JPEG file's color space given -by jpeg_color_space. jpeg_set_defaults() chooses a reasonable JPEG color -space depending on in_color_space, but you can override this by calling -jpeg_set_colorspace(). Of course you must select a supported transformation. -jccolor.c currently supports the following transformations: - RGB => YCbCr - RGB => GRAYSCALE - YCbCr => GRAYSCALE - CMYK => YCCK -plus the null transforms: GRAYSCALE => GRAYSCALE, RGB => RGB, -YCbCr => YCbCr, CMYK => CMYK, YCCK => YCCK, and UNKNOWN => UNKNOWN. - -The de-facto file format standards (JFIF and Adobe) specify APPn markers that -indicate the color space of the JPEG file. It is important to ensure that -these are written correctly, or omitted if the JPEG file's color space is not -one of the ones supported by the de-facto standards. jpeg_set_colorspace() -will set the compression parameters to include or omit the APPn markers -properly, so long as it is told the truth about the JPEG color space. -For example, if you are writing some random 3-component color space without -conversion, don't try to fake out the library by setting in_color_space and -jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN. You may want to write an -APPn marker of your own devising to identify the colorspace --- see "Special -markers", below. - -When told that the color space is UNKNOWN, the library will default to using -luminance-quality compression parameters for all color components. You may -well want to change these parameters. See the source code for -jpeg_set_colorspace(), in jcparam.c, for details. - -For decompression, the JPEG file's color space is given in jpeg_color_space, -and this is transformed to the output color space out_color_space. -jpeg_read_header's setting of jpeg_color_space can be relied on if the file -conforms to JFIF or Adobe conventions, but otherwise it is no better than a -guess. If you know the JPEG file's color space for certain, you can override -jpeg_read_header's guess by setting jpeg_color_space. jpeg_read_header also -selects a default output color space based on (its guess of) jpeg_color_space; -set out_color_space to override this. Again, you must select a supported -transformation. jdcolor.c currently supports - YCbCr => RGB - YCbCr => GRAYSCALE - RGB => GRAYSCALE - GRAYSCALE => RGB - YCCK => CMYK -as well as the null transforms. (Since GRAYSCALE=>RGB is provided, an -application can force grayscale JPEGs to look like color JPEGs if it only -wants to handle one case.) - -The two-pass color quantizer, jquant2.c, is specialized to handle RGB data -(it weights distances appropriately for RGB colors). You'll need to modify -the code if you want to use it for non-RGB output color spaces. Note that -jquant2.c is used to map to an application-supplied colormap as well as for -the normal two-pass colormap selection process. - -CAUTION: it appears that Adobe Photoshop writes inverted data in CMYK JPEG -files: 0 represents 100% ink coverage, rather than 0% ink as you'd expect. -This is arguably a bug in Photoshop, but if you need to work with Photoshop -CMYK files, you will have to deal with it in your application. We cannot -"fix" this in the library by inverting the data during the CMYK<=>YCCK -transform, because that would break other applications, notably Ghostscript. -Photoshop versions prior to 3.0 write EPS files containing JPEG-encoded CMYK -data in the same inverted-YCCK representation used in bare JPEG files, but -the surrounding PostScript code performs an inversion using the PS image -operator. I am told that Photoshop 3.0 will write uninverted YCCK in -EPS/JPEG files, and will omit the PS-level inversion. (But the data -polarity used in bare JPEG files will not change in 3.0.) In either case, -the JPEG library must not invert the data itself, or else Ghostscript would -read these EPS files incorrectly. - - -Error handling --------------- - -When the default error handler is used, any error detected inside the JPEG -routines will cause a message to be printed on stderr, followed by exit(). -You can supply your own error handling routines to override this behavior -and to control the treatment of nonfatal warnings and trace/debug messages. -The file example.c illustrates the most common case, which is to have the -application regain control after an error rather than exiting. - -The JPEG library never writes any message directly; it always goes through -the error handling routines. Three classes of messages are recognized: - * Fatal errors: the library cannot continue. - * Warnings: the library can continue, but the data is corrupt, and a - damaged output image is likely to result. - * Trace/informational messages. These come with a trace level indicating - the importance of the message; you can control the verbosity of the - program by adjusting the maximum trace level that will be displayed. - -You may, if you wish, simply replace the entire JPEG error handling module -(jerror.c) with your own code. However, you can avoid code duplication by -only replacing some of the routines depending on the behavior you need. -This is accomplished by calling jpeg_std_error() as usual, but then overriding -some of the method pointers in the jpeg_error_mgr struct, as illustrated by -example.c. - -All of the error handling routines will receive a pointer to the JPEG object -(a j_common_ptr which points to either a jpeg_compress_struct or a -jpeg_decompress_struct; if you need to tell which, test the is_decompressor -field). This struct includes a pointer to the error manager struct in its -"err" field. Frequently, custom error handler routines will need to access -additional data which is not known to the JPEG library or the standard error -handler. The most convenient way to do this is to embed either the JPEG -object or the jpeg_error_mgr struct in a larger structure that contains -additional fields; then casting the passed pointer provides access to the -additional fields. Again, see example.c for one way to do it. (Beginning -with IJG version 6b, there is also a void pointer "client_data" in each -JPEG object, which the application can also use to find related data. -The library does not touch client_data at all.) - -The individual methods that you might wish to override are: - -error_exit (j_common_ptr cinfo) - Receives control for a fatal error. Information sufficient to - generate the error message has been stored in cinfo->err; call - output_message to display it. Control must NOT return to the caller; - generally this routine will exit() or longjmp() somewhere. - Typically you would override this routine to get rid of the exit() - default behavior. Note that if you continue processing, you should - clean up the JPEG object with jpeg_abort() or jpeg_destroy(). - -output_message (j_common_ptr cinfo) - Actual output of any JPEG message. Override this to send messages - somewhere other than stderr. Note that this method does not know - how to generate a message, only where to send it. - -format_message (j_common_ptr cinfo, char * buffer) - Constructs a readable error message string based on the error info - stored in cinfo->err. This method is called by output_message. Few - applications should need to override this method. One possible - reason for doing so is to implement dynamic switching of error message - language. - -emit_message (j_common_ptr cinfo, int msg_level) - Decide whether or not to emit a warning or trace message; if so, - calls output_message. The main reason for overriding this method - would be to abort on warnings. msg_level is -1 for warnings, - 0 and up for trace messages. - -Only error_exit() and emit_message() are called from the rest of the JPEG -library; the other two are internal to the error handler. - -The actual message texts are stored in an array of strings which is pointed to -by the field err->jpeg_message_table. The messages are numbered from 0 to -err->last_jpeg_message, and it is these code numbers that are used in the -JPEG library code. You could replace the message texts (for instance, with -messages in French or German) by changing the message table pointer. See -jerror.h for the default texts. CAUTION: this table will almost certainly -change or grow from one library version to the next. - -It may be useful for an application to add its own message texts that are -handled by the same mechanism. The error handler supports a second "add-on" -message table for this purpose. To define an addon table, set the pointer -err->addon_message_table and the message numbers err->first_addon_message and -err->last_addon_message. If you number the addon messages beginning at 1000 -or so, you won't have to worry about conflicts with the library's built-in -messages. See the sample applications cjpeg/djpeg for an example of using -addon messages (the addon messages are defined in cderror.h). - -Actual invocation of the error handler is done via macros defined in jerror.h: - ERREXITn(...) for fatal errors - WARNMSn(...) for corrupt-data warnings - TRACEMSn(...) for trace and informational messages. -These macros store the message code and any additional parameters into the -error handler struct, then invoke the error_exit() or emit_message() method. -The variants of each macro are for varying numbers of additional parameters. -The additional parameters are inserted into the generated message using -standard printf() format codes. - -See jerror.h and jerror.c for further details. - - -Compressed data handling (source and destination managers) ----------------------------------------------------------- - -The JPEG compression library sends its compressed data to a "destination -manager" module. The default destination manager just writes the data to a -memory buffer or to a stdio stream, but you can provide your own manager to -do something else. Similarly, the decompression library calls a "source -manager" to obtain the compressed data; you can provide your own source -manager if you want the data to come from somewhere other than a memory -buffer or a stdio stream. - -In both cases, compressed data is processed a bufferload at a time: the -destination or source manager provides a work buffer, and the library invokes -the manager only when the buffer is filled or emptied. (You could define a -one-character buffer to force the manager to be invoked for each byte, but -that would be rather inefficient.) The buffer's size and location are -controlled by the manager, not by the library. For example, the memory -source manager just makes the buffer pointer and length point to the original -data in memory. In this case the buffer-reload procedure will be invoked -only if the decompressor ran off the end of the datastream, which would -indicate an erroneous datastream. - -The work buffer is defined as an array of datatype JOCTET, which is generally -"char" or "unsigned char". On a machine where char is not exactly 8 bits -wide, you must define JOCTET as a wider data type and then modify the data -source and destination modules to transcribe the work arrays into 8-bit units -on external storage. - -A data destination manager struct contains a pointer and count defining the -next byte to write in the work buffer and the remaining free space: - - JOCTET * next_output_byte; /* => next byte to write in buffer */ - size_t free_in_buffer; /* # of byte spaces remaining in buffer */ - -The library increments the pointer and decrements the count until the buffer -is filled. The manager's empty_output_buffer method must reset the pointer -and count. The manager is expected to remember the buffer's starting address -and total size in private fields not visible to the library. - -A data destination manager provides three methods: - -init_destination (j_compress_ptr cinfo) - Initialize destination. This is called by jpeg_start_compress() - before any data is actually written. It must initialize - next_output_byte and free_in_buffer. free_in_buffer must be - initialized to a positive value. - -empty_output_buffer (j_compress_ptr cinfo) - This is called whenever the buffer has filled (free_in_buffer - reaches zero). In typical applications, it should write out the - *entire* buffer (use the saved start address and buffer length; - ignore the current state of next_output_byte and free_in_buffer). - Then reset the pointer & count to the start of the buffer, and - return TRUE indicating that the buffer has been dumped. - free_in_buffer must be set to a positive value when TRUE is - returned. A FALSE return should only be used when I/O suspension is - desired (this operating mode is discussed in the next section). - -term_destination (j_compress_ptr cinfo) - Terminate destination --- called by jpeg_finish_compress() after all - data has been written. In most applications, this must flush any - data remaining in the buffer. Use either next_output_byte or - free_in_buffer to determine how much data is in the buffer. - -term_destination() is NOT called by jpeg_abort() or jpeg_destroy(). If you -want the destination manager to be cleaned up during an abort, you must do it -yourself. - -You will also need code to create a jpeg_destination_mgr struct, fill in its -method pointers, and insert a pointer to the struct into the "dest" field of -the JPEG compression object. This can be done in-line in your setup code if -you like, but it's probably cleaner to provide a separate routine similar to -the jpeg_stdio_dest() or jpeg_mem_dest() routines of the supplied destination -managers. - -Decompression source managers follow a parallel design, but with some -additional frammishes. The source manager struct contains a pointer and count -defining the next byte to read from the work buffer and the number of bytes -remaining: - - const JOCTET * next_input_byte; /* => next byte to read from buffer */ - size_t bytes_in_buffer; /* # of bytes remaining in buffer */ - -The library increments the pointer and decrements the count until the buffer -is emptied. The manager's fill_input_buffer method must reset the pointer and -count. In most applications, the manager must remember the buffer's starting -address and total size in private fields not visible to the library. - -A data source manager provides five methods: - -init_source (j_decompress_ptr cinfo) - Initialize source. This is called by jpeg_read_header() before any - data is actually read. Unlike init_destination(), it may leave - bytes_in_buffer set to 0 (in which case a fill_input_buffer() call - will occur immediately). - -fill_input_buffer (j_decompress_ptr cinfo) - This is called whenever bytes_in_buffer has reached zero and more - data is wanted. In typical applications, it should read fresh data - into the buffer (ignoring the current state of next_input_byte and - bytes_in_buffer), reset the pointer & count to the start of the - buffer, and return TRUE indicating that the buffer has been reloaded. - It is not necessary to fill the buffer entirely, only to obtain at - least one more byte. bytes_in_buffer MUST be set to a positive value - if TRUE is returned. A FALSE return should only be used when I/O - suspension is desired (this mode is discussed in the next section). - -skip_input_data (j_decompress_ptr cinfo, long num_bytes) - Skip num_bytes worth of data. The buffer pointer and count should - be advanced over num_bytes input bytes, refilling the buffer as - needed. This is used to skip over a potentially large amount of - uninteresting data (such as an APPn marker). In some applications - it may be possible to optimize away the reading of the skipped data, - but it's not clear that being smart is worth much trouble; large - skips are uncommon. bytes_in_buffer may be zero on return. - A zero or negative skip count should be treated as a no-op. - -resync_to_restart (j_decompress_ptr cinfo, int desired) - This routine is called only when the decompressor has failed to find - a restart (RSTn) marker where one is expected. Its mission is to - find a suitable point for resuming decompression. For most - applications, we recommend that you just use the default resync - procedure, jpeg_resync_to_restart(). However, if you are able to back - up in the input data stream, or if you have a-priori knowledge about - the likely location of restart markers, you may be able to do better. - Read the read_restart_marker() and jpeg_resync_to_restart() routines - in jdmarker.c if you think you'd like to implement your own resync - procedure. - -term_source (j_decompress_ptr cinfo) - Terminate source --- called by jpeg_finish_decompress() after all - data has been read. Often a no-op. - -For both fill_input_buffer() and skip_input_data(), there is no such thing -as an EOF return. If the end of the file has been reached, the routine has -a choice of exiting via ERREXIT() or inserting fake data into the buffer. -In most cases, generating a warning message and inserting a fake EOI marker -is the best course of action --- this will allow the decompressor to output -however much of the image is there. In pathological cases, the decompressor -may swallow the EOI and again demand data ... just keep feeding it fake EOIs. -jdatasrc.c illustrates the recommended error recovery behavior. - -term_source() is NOT called by jpeg_abort() or jpeg_destroy(). If you want -the source manager to be cleaned up during an abort, you must do it yourself. - -You will also need code to create a jpeg_source_mgr struct, fill in its method -pointers, and insert a pointer to the struct into the "src" field of the JPEG -decompression object. This can be done in-line in your setup code if you -like, but it's probably cleaner to provide a separate routine similar to the -jpeg_stdio_src() or jpeg_mem_src() routines of the supplied source managers. - -For more information, consult the memory and stdio source and destination -managers in jdatasrc.c and jdatadst.c. - - -I/O suspension --------------- - -Some applications need to use the JPEG library as an incremental memory-to- -memory filter: when the compressed data buffer is filled or emptied, they want -control to return to the outer loop, rather than expecting that the buffer can -be emptied or reloaded within the data source/destination manager subroutine. -The library supports this need by providing an "I/O suspension" mode, which we -describe in this section. - -The I/O suspension mode is not a panacea: nothing is guaranteed about the -maximum amount of time spent in any one call to the library, so it will not -eliminate response-time problems in single-threaded applications. If you -need guaranteed response time, we suggest you "bite the bullet" and implement -a real multi-tasking capability. - -To use I/O suspension, cooperation is needed between the calling application -and the data source or destination manager; you will always need a custom -source/destination manager. (Please read the previous section if you haven't -already.) The basic idea is that the empty_output_buffer() or -fill_input_buffer() routine is a no-op, merely returning FALSE to indicate -that it has done nothing. Upon seeing this, the JPEG library suspends -operation and returns to its caller. The surrounding application is -responsible for emptying or refilling the work buffer before calling the -JPEG library again. - -Compression suspension: - -For compression suspension, use an empty_output_buffer() routine that returns -FALSE; typically it will not do anything else. This will cause the -compressor to return to the caller of jpeg_write_scanlines(), with the return -value indicating that not all the supplied scanlines have been accepted. -The application must make more room in the output buffer, adjust the output -buffer pointer/count appropriately, and then call jpeg_write_scanlines() -again, pointing to the first unconsumed scanline. - -When forced to suspend, the compressor will backtrack to a convenient stopping -point (usually the start of the current MCU); it will regenerate some output -data when restarted. Therefore, although empty_output_buffer() is only -called when the buffer is filled, you should NOT write out the entire buffer -after a suspension. Write only the data up to the current position of -next_output_byte/free_in_buffer. The data beyond that point will be -regenerated after resumption. - -Because of the backtracking behavior, a good-size output buffer is essential -for efficiency; you don't want the compressor to suspend often. (In fact, an -overly small buffer could lead to infinite looping, if a single MCU required -more data than would fit in the buffer.) We recommend a buffer of at least -several Kbytes. You may want to insert explicit code to ensure that you don't -call jpeg_write_scanlines() unless there is a reasonable amount of space in -the output buffer; in other words, flush the buffer before trying to compress -more data. - -The compressor does not allow suspension while it is trying to write JPEG -markers at the beginning and end of the file. This means that: - * At the beginning of a compression operation, there must be enough free - space in the output buffer to hold the header markers (typically 600 or - so bytes). The recommended buffer size is bigger than this anyway, so - this is not a problem as long as you start with an empty buffer. However, - this restriction might catch you if you insert large special markers, such - as a JFIF thumbnail image, without flushing the buffer afterwards. - * When you call jpeg_finish_compress(), there must be enough space in the - output buffer to emit any buffered data and the final EOI marker. In the - current implementation, half a dozen bytes should suffice for this, but - for safety's sake we recommend ensuring that at least 100 bytes are free - before calling jpeg_finish_compress(). - -A more significant restriction is that jpeg_finish_compress() cannot suspend. -This means you cannot use suspension with multi-pass operating modes, namely -Huffman code optimization and multiple-scan output. Those modes write the -whole file during jpeg_finish_compress(), which will certainly result in -buffer overrun. (Note that this restriction applies only to compression, -not decompression. The decompressor supports input suspension in all of its -operating modes.) - -Decompression suspension: - -For decompression suspension, use a fill_input_buffer() routine that simply -returns FALSE (except perhaps during error recovery, as discussed below). -This will cause the decompressor to return to its caller with an indication -that suspension has occurred. This can happen at four places: - * jpeg_read_header(): will return JPEG_SUSPENDED. - * jpeg_start_decompress(): will return FALSE, rather than its usual TRUE. - * jpeg_read_scanlines(): will return the number of scanlines already - completed (possibly 0). - * jpeg_finish_decompress(): will return FALSE, rather than its usual TRUE. -The surrounding application must recognize these cases, load more data into -the input buffer, and repeat the call. In the case of jpeg_read_scanlines(), -increment the passed pointers past any scanlines successfully read. - -Just as with compression, the decompressor will typically backtrack to a -convenient restart point before suspending. When fill_input_buffer() is -called, next_input_byte/bytes_in_buffer point to the current restart point, -which is where the decompressor will backtrack to if FALSE is returned. -The data beyond that position must NOT be discarded if you suspend; it needs -to be re-read upon resumption. In most implementations, you'll need to shift -this data down to the start of your work buffer and then load more data after -it. Again, this behavior means that a several-Kbyte work buffer is essential -for decent performance; furthermore, you should load a reasonable amount of -new data before resuming decompression. (If you loaded, say, only one new -byte each time around, you could waste a LOT of cycles.) - -The skip_input_data() source manager routine requires special care in a -suspension scenario. This routine is NOT granted the ability to suspend the -decompressor; it can decrement bytes_in_buffer to zero, but no more. If the -requested skip distance exceeds the amount of data currently in the input -buffer, then skip_input_data() must set bytes_in_buffer to zero and record the -additional skip distance somewhere else. The decompressor will immediately -call fill_input_buffer(), which should return FALSE, which will cause a -suspension return. The surrounding application must then arrange to discard -the recorded number of bytes before it resumes loading the input buffer. -(Yes, this design is rather baroque, but it avoids complexity in the far more -common case where a non-suspending source manager is used.) - -If the input data has been exhausted, we recommend that you emit a warning -and insert dummy EOI markers just as a non-suspending data source manager -would do. This can be handled either in the surrounding application logic or -within fill_input_buffer(); the latter is probably more efficient. If -fill_input_buffer() knows that no more data is available, it can set the -pointer/count to point to a dummy EOI marker and then return TRUE just as -though it had read more data in a non-suspending situation. - -The decompressor does not attempt to suspend within standard JPEG markers; -instead it will backtrack to the start of the marker and reprocess the whole -marker next time. Hence the input buffer must be large enough to hold the -longest standard marker in the file. Standard JPEG markers should normally -not exceed a few hundred bytes each (DHT tables are typically the longest). -We recommend at least a 2K buffer for performance reasons, which is much -larger than any correct marker is likely to be. For robustness against -damaged marker length counts, you may wish to insert a test in your -application for the case that the input buffer is completely full and yet -the decoder has suspended without consuming any data --- otherwise, if this -situation did occur, it would lead to an endless loop. (The library can't -provide this test since it has no idea whether "the buffer is full", or -even whether there is a fixed-size input buffer.) - -The input buffer would need to be 64K to allow for arbitrary COM or APPn -markers, but these are handled specially: they are either saved into allocated -memory, or skipped over by calling skip_input_data(). In the former case, -suspension is handled correctly, and in the latter case, the problem of -buffer overrun is placed on skip_input_data's shoulders, as explained above. -Note that if you provide your own marker handling routine for large markers, -you should consider how to deal with buffer overflow. - -Multiple-buffer management: - -In some applications it is desirable to store the compressed data in a linked -list of buffer areas, so as to avoid data copying. This can be handled by -having empty_output_buffer() or fill_input_buffer() set the pointer and count -to reference the next available buffer; FALSE is returned only if no more -buffers are available. Although seemingly straightforward, there is a -pitfall in this approach: the backtrack that occurs when FALSE is returned -could back up into an earlier buffer. For example, when fill_input_buffer() -is called, the current pointer & count indicate the backtrack restart point. -Since fill_input_buffer() will set the pointer and count to refer to a new -buffer, the restart position must be saved somewhere else. Suppose a second -call to fill_input_buffer() occurs in the same library call, and no -additional input data is available, so fill_input_buffer must return FALSE. -If the JPEG library has not moved the pointer/count forward in the current -buffer, then *the correct restart point is the saved position in the prior -buffer*. Prior buffers may be discarded only after the library establishes -a restart point within a later buffer. Similar remarks apply for output into -a chain of buffers. - -The library will never attempt to backtrack over a skip_input_data() call, -so any skipped data can be permanently discarded. You still have to deal -with the case of skipping not-yet-received data, however. - -It's much simpler to use only a single buffer; when fill_input_buffer() is -called, move any unconsumed data (beyond the current pointer/count) down to -the beginning of this buffer and then load new data into the remaining buffer -space. This approach requires a little more data copying but is far easier -to get right. - - -Progressive JPEG support ------------------------- - -Progressive JPEG rearranges the stored data into a series of scans of -increasing quality. In situations where a JPEG file is transmitted across a -slow communications link, a decoder can generate a low-quality image very -quickly from the first scan, then gradually improve the displayed quality as -more scans are received. The final image after all scans are complete is -identical to that of a regular (sequential) JPEG file of the same quality -setting. Progressive JPEG files are often slightly smaller than equivalent -sequential JPEG files, but the possibility of incremental display is the main -reason for using progressive JPEG. - -The IJG encoder library generates progressive JPEG files when given a -suitable "scan script" defining how to divide the data into scans. -Creation of progressive JPEG files is otherwise transparent to the encoder. -Progressive JPEG files can also be read transparently by the decoder library. -If the decoding application simply uses the library as defined above, it -will receive a final decoded image without any indication that the file was -progressive. Of course, this approach does not allow incremental display. -To perform incremental display, an application needs to use the decoder -library's "buffered-image" mode, in which it receives a decoded image -multiple times. - -Each displayed scan requires about as much work to decode as a full JPEG -image of the same size, so the decoder must be fairly fast in relation to the -data transmission rate in order to make incremental display useful. However, -it is possible to skip displaying the image and simply add the incoming bits -to the decoder's coefficient buffer. This is fast because only Huffman -decoding need be done, not IDCT, upsampling, colorspace conversion, etc. -The IJG decoder library allows the application to switch dynamically between -displaying the image and simply absorbing the incoming bits. A properly -coded application can automatically adapt the number of display passes to -suit the time available as the image is received. Also, a final -higher-quality display cycle can be performed from the buffered data after -the end of the file is reached. - -Progressive compression: - -To create a progressive JPEG file (or a multiple-scan sequential JPEG file), -set the scan_info cinfo field to point to an array of scan descriptors, and -perform compression as usual. Instead of constructing your own scan list, -you can call the jpeg_simple_progression() helper routine to create a -recommended progression sequence; this method should be used by all -applications that don't want to get involved in the nitty-gritty of -progressive scan sequence design. (If you want to provide user control of -scan sequences, you may wish to borrow the scan script reading code found -in rdswitch.c, so that you can read scan script files just like cjpeg's.) -When scan_info is not NULL, the compression library will store DCT'd data -into a buffer array as jpeg_write_scanlines() is called, and will emit all -the requested scans during jpeg_finish_compress(). This implies that -multiple-scan output cannot be created with a suspending data destination -manager, since jpeg_finish_compress() does not support suspension. We -should also note that the compressor currently forces Huffman optimization -mode when creating a progressive JPEG file, because the default Huffman -tables are unsuitable for progressive files. - -Progressive decompression: - -When buffered-image mode is not used, the decoder library will read all of -a multi-scan file during jpeg_start_decompress(), so that it can provide a -final decoded image. (Here "multi-scan" means either progressive or -multi-scan sequential.) This makes multi-scan files transparent to the -decoding application. However, existing applications that used suspending -input with version 5 of the IJG library will need to be modified to check -for a suspension return from jpeg_start_decompress(). - -To perform incremental display, an application must use the library's -buffered-image mode. This is described in the next section. - - -Buffered-image mode -------------------- - -In buffered-image mode, the library stores the partially decoded image in a -coefficient buffer, from which it can be read out as many times as desired. -This mode is typically used for incremental display of progressive JPEG files, -but it can be used with any JPEG file. Each scan of a progressive JPEG file -adds more data (more detail) to the buffered image. The application can -display in lockstep with the source file (one display pass per input scan), -or it can allow input processing to outrun display processing. By making -input and display processing run independently, it is possible for the -application to adapt progressive display to a wide range of data transmission -rates. - -The basic control flow for buffered-image decoding is - - jpeg_create_decompress() - set data source - jpeg_read_header() - set overall decompression parameters - cinfo.buffered_image = TRUE; /* select buffered-image mode */ - jpeg_start_decompress() - for (each output pass) { - adjust output decompression parameters if required - jpeg_start_output() /* start a new output pass */ - for (all scanlines in image) { - jpeg_read_scanlines() - display scanlines - } - jpeg_finish_output() /* terminate output pass */ - } - jpeg_finish_decompress() - jpeg_destroy_decompress() - -This differs from ordinary unbuffered decoding in that there is an additional -level of looping. The application can choose how many output passes to make -and how to display each pass. - -The simplest approach to displaying progressive images is to do one display -pass for each scan appearing in the input file. In this case the outer loop -condition is typically - while (! jpeg_input_complete(&cinfo)) -and the start-output call should read - jpeg_start_output(&cinfo, cinfo.input_scan_number); -The second parameter to jpeg_start_output() indicates which scan of the input -file is to be displayed; the scans are numbered starting at 1 for this -purpose. (You can use a loop counter starting at 1 if you like, but using -the library's input scan counter is easier.) The library automatically reads -data as necessary to complete each requested scan, and jpeg_finish_output() -advances to the next scan or end-of-image marker (hence input_scan_number -will be incremented by the time control arrives back at jpeg_start_output()). -With this technique, data is read from the input file only as needed, and -input and output processing run in lockstep. - -After reading the final scan and reaching the end of the input file, the -buffered image remains available; it can be read additional times by -repeating the jpeg_start_output()/jpeg_read_scanlines()/jpeg_finish_output() -sequence. For example, a useful technique is to use fast one-pass color -quantization for display passes made while the image is arriving, followed by -a final display pass using two-pass quantization for highest quality. This -is done by changing the library parameters before the final output pass. -Changing parameters between passes is discussed in detail below. - -In general the last scan of a progressive file cannot be recognized as such -until after it is read, so a post-input display pass is the best approach if -you want special processing in the final pass. - -When done with the image, be sure to call jpeg_finish_decompress() to release -the buffered image (or just use jpeg_destroy_decompress()). - -If input data arrives faster than it can be displayed, the application can -cause the library to decode input data in advance of what's needed to produce -output. This is done by calling the routine jpeg_consume_input(). -The return value is one of the following: - JPEG_REACHED_SOS: reached an SOS marker (the start of a new scan) - JPEG_REACHED_EOI: reached the EOI marker (end of image) - JPEG_ROW_COMPLETED: completed reading one MCU row of compressed data - JPEG_SCAN_COMPLETED: completed reading last MCU row of current scan - JPEG_SUSPENDED: suspended before completing any of the above -(JPEG_SUSPENDED can occur only if a suspending data source is used.) This -routine can be called at any time after initializing the JPEG object. It -reads some additional data and returns when one of the indicated significant -events occurs. (If called after the EOI marker is reached, it will -immediately return JPEG_REACHED_EOI without attempting to read more data.) - -The library's output processing will automatically call jpeg_consume_input() -whenever the output processing overtakes the input; thus, simple lockstep -display requires no direct calls to jpeg_consume_input(). But by adding -calls to jpeg_consume_input(), you can absorb data in advance of what is -being displayed. This has two benefits: - * You can limit buildup of unprocessed data in your input buffer. - * You can eliminate extra display passes by paying attention to the - state of the library's input processing. - -The first of these benefits only requires interspersing calls to -jpeg_consume_input() with your display operations and any other processing -you may be doing. To avoid wasting cycles due to backtracking, it's best to -call jpeg_consume_input() only after a hundred or so new bytes have arrived. -This is discussed further under "I/O suspension", above. (Note: the JPEG -library currently is not thread-safe. You must not call jpeg_consume_input() -from one thread of control if a different library routine is working on the -same JPEG object in another thread.) - -When input arrives fast enough that more than one new scan is available -before you start a new output pass, you may as well skip the output pass -corresponding to the completed scan. This occurs for free if you pass -cinfo.input_scan_number as the target scan number to jpeg_start_output(). -The input_scan_number field is simply the index of the scan currently being -consumed by the input processor. You can ensure that this is up-to-date by -emptying the input buffer just before calling jpeg_start_output(): call -jpeg_consume_input() repeatedly until it returns JPEG_SUSPENDED or -JPEG_REACHED_EOI. - -The target scan number passed to jpeg_start_output() is saved in the -cinfo.output_scan_number field. The library's output processing calls -jpeg_consume_input() whenever the current input scan number and row within -that scan is less than or equal to the current output scan number and row. -Thus, input processing can "get ahead" of the output processing but is not -allowed to "fall behind". You can achieve several different effects by -manipulating this interlock rule. For example, if you pass a target scan -number greater than the current input scan number, the output processor will -wait until that scan starts to arrive before producing any output. (To avoid -an infinite loop, the target scan number is automatically reset to the last -scan number when the end of image is reached. Thus, if you specify a large -target scan number, the library will just absorb the entire input file and -then perform an output pass. This is effectively the same as what -jpeg_start_decompress() does when you don't select buffered-image mode.) -When you pass a target scan number equal to the current input scan number, -the image is displayed no faster than the current input scan arrives. The -final possibility is to pass a target scan number less than the current input -scan number; this disables the input/output interlock and causes the output -processor to simply display whatever it finds in the image buffer, without -waiting for input. (However, the library will not accept a target scan -number less than one, so you can't avoid waiting for the first scan.) - -When data is arriving faster than the output display processing can advance -through the image, jpeg_consume_input() will store data into the buffered -image beyond the point at which the output processing is reading data out -again. If the input arrives fast enough, it may "wrap around" the buffer to -the point where the input is more than one whole scan ahead of the output. -If the output processing simply proceeds through its display pass without -paying attention to the input, the effect seen on-screen is that the lower -part of the image is one or more scans better in quality than the upper part. -Then, when the next output scan is started, you have a choice of what target -scan number to use. The recommended choice is to use the current input scan -number at that time, which implies that you've skipped the output scans -corresponding to the input scans that were completed while you processed the -previous output scan. In this way, the decoder automatically adapts its -speed to the arriving data, by skipping output scans as necessary to keep up -with the arriving data. - -When using this strategy, you'll want to be sure that you perform a final -output pass after receiving all the data; otherwise your last display may not -be full quality across the whole screen. So the right outer loop logic is -something like this: - do { - absorb any waiting input by calling jpeg_consume_input() - final_pass = jpeg_input_complete(&cinfo); - adjust output decompression parameters if required - jpeg_start_output(&cinfo, cinfo.input_scan_number); - ... - jpeg_finish_output() - } while (! final_pass); -rather than quitting as soon as jpeg_input_complete() returns TRUE. This -arrangement makes it simple to use higher-quality decoding parameters -for the final pass. But if you don't want to use special parameters for -the final pass, the right loop logic is like this: - for (;;) { - absorb any waiting input by calling jpeg_consume_input() - jpeg_start_output(&cinfo, cinfo.input_scan_number); - ... - jpeg_finish_output() - if (jpeg_input_complete(&cinfo) && - cinfo.input_scan_number == cinfo.output_scan_number) - break; - } -In this case you don't need to know in advance whether an output pass is to -be the last one, so it's not necessary to have reached EOF before starting -the final output pass; rather, what you want to test is whether the output -pass was performed in sync with the final input scan. This form of the loop -will avoid an extra output pass whenever the decoder is able (or nearly able) -to keep up with the incoming data. - -When the data transmission speed is high, you might begin a display pass, -then find that much or all of the file has arrived before you can complete -the pass. (You can detect this by noting the JPEG_REACHED_EOI return code -from jpeg_consume_input(), or equivalently by testing jpeg_input_complete().) -In this situation you may wish to abort the current display pass and start a -new one using the newly arrived information. To do so, just call -jpeg_finish_output() and then start a new pass with jpeg_start_output(). - -A variant strategy is to abort and restart display if more than one complete -scan arrives during an output pass; this can be detected by noting -JPEG_REACHED_SOS returns and/or examining cinfo.input_scan_number. This -idea should be employed with caution, however, since the display process -might never get to the bottom of the image before being aborted, resulting -in the lower part of the screen being several passes worse than the upper. -In most cases it's probably best to abort an output pass only if the whole -file has arrived and you want to begin the final output pass immediately. - -When receiving data across a communication link, we recommend always using -the current input scan number for the output target scan number; if a -higher-quality final pass is to be done, it should be started (aborting any -incomplete output pass) as soon as the end of file is received. However, -many other strategies are possible. For example, the application can examine -the parameters of the current input scan and decide whether to display it or -not. If the scan contains only chroma data, one might choose not to use it -as the target scan, expecting that the scan will be small and will arrive -quickly. To skip to the next scan, call jpeg_consume_input() until it -returns JPEG_REACHED_SOS or JPEG_REACHED_EOI. Or just use the next higher -number as the target scan for jpeg_start_output(); but that method doesn't -let you inspect the next scan's parameters before deciding to display it. - - -In buffered-image mode, jpeg_start_decompress() never performs input and -thus never suspends. An application that uses input suspension with -buffered-image mode must be prepared for suspension returns from these -routines: -* jpeg_start_output() performs input only if you request 2-pass quantization - and the target scan isn't fully read yet. (This is discussed below.) -* jpeg_read_scanlines(), as always, returns the number of scanlines that it - was able to produce before suspending. -* jpeg_finish_output() will read any markers following the target scan, - up to the end of the file or the SOS marker that begins another scan. - (But it reads no input if jpeg_consume_input() has already reached the - end of the file or a SOS marker beyond the target output scan.) -* jpeg_finish_decompress() will read until the end of file, and thus can - suspend if the end hasn't already been reached (as can be tested by - calling jpeg_input_complete()). -jpeg_start_output(), jpeg_finish_output(), and jpeg_finish_decompress() -all return TRUE if they completed their tasks, FALSE if they had to suspend. -In the event of a FALSE return, the application must load more input data -and repeat the call. Applications that use non-suspending data sources need -not check the return values of these three routines. - - -It is possible to change decoding parameters between output passes in the -buffered-image mode. The decoder library currently supports only very -limited changes of parameters. ONLY THE FOLLOWING parameter changes are -allowed after jpeg_start_decompress() is called: -* dct_method can be changed before each call to jpeg_start_output(). - For example, one could use a fast DCT method for early scans, changing - to a higher quality method for the final scan. -* dither_mode can be changed before each call to jpeg_start_output(); - of course this has no impact if not using color quantization. Typically - one would use ordered dither for initial passes, then switch to - Floyd-Steinberg dither for the final pass. Caution: changing dither mode - can cause more memory to be allocated by the library. Although the amount - of memory involved is not large (a scanline or so), it may cause the - initial max_memory_to_use specification to be exceeded, which in the worst - case would result in an out-of-memory failure. -* do_block_smoothing can be changed before each call to jpeg_start_output(). - This setting is relevant only when decoding a progressive JPEG image. - During the first DC-only scan, block smoothing provides a very "fuzzy" look - instead of the very "blocky" look seen without it; which is better seems a - matter of personal taste. But block smoothing is nearly always a win - during later stages, especially when decoding a successive-approximation - image: smoothing helps to hide the slight blockiness that otherwise shows - up on smooth gradients until the lowest coefficient bits are sent. -* Color quantization mode can be changed under the rules described below. - You *cannot* change between full-color and quantized output (because that - would alter the required I/O buffer sizes), but you can change which - quantization method is used. - -When generating color-quantized output, changing quantization method is a -very useful way of switching between high-speed and high-quality display. -The library allows you to change among its three quantization methods: -1. Single-pass quantization to a fixed color cube. - Selected by cinfo.two_pass_quantize = FALSE and cinfo.colormap = NULL. -2. Single-pass quantization to an application-supplied colormap. - Selected by setting cinfo.colormap to point to the colormap (the value of - two_pass_quantize is ignored); also set cinfo.actual_number_of_colors. -3. Two-pass quantization to a colormap chosen specifically for the image. - Selected by cinfo.two_pass_quantize = TRUE and cinfo.colormap = NULL. - (This is the default setting selected by jpeg_read_header, but it is - probably NOT what you want for the first pass of progressive display!) -These methods offer successively better quality and lesser speed. However, -only the first method is available for quantizing in non-RGB color spaces. - -IMPORTANT: because the different quantizer methods have very different -working-storage requirements, the library requires you to indicate which -one(s) you intend to use before you call jpeg_start_decompress(). (If we did -not require this, the max_memory_to_use setting would be a complete fiction.) -You do this by setting one or more of these three cinfo fields to TRUE: - enable_1pass_quant Fixed color cube colormap - enable_external_quant Externally-supplied colormap - enable_2pass_quant Two-pass custom colormap -All three are initialized FALSE by jpeg_read_header(). But -jpeg_start_decompress() automatically sets TRUE the one selected by the -current two_pass_quantize and colormap settings, so you only need to set the -enable flags for any other quantization methods you plan to change to later. - -After setting the enable flags correctly at jpeg_start_decompress() time, you -can change to any enabled quantization method by setting two_pass_quantize -and colormap properly just before calling jpeg_start_output(). The following -special rules apply: -1. You must explicitly set cinfo.colormap to NULL when switching to 1-pass - or 2-pass mode from a different mode, or when you want the 2-pass - quantizer to be re-run to generate a new colormap. -2. To switch to an external colormap, or to change to a different external - colormap than was used on the prior pass, you must call - jpeg_new_colormap() after setting cinfo.colormap. -NOTE: if you want to use the same colormap as was used in the prior pass, -you should not do either of these things. This will save some nontrivial -switchover costs. -(These requirements exist because cinfo.colormap will always be non-NULL -after completing a prior output pass, since both the 1-pass and 2-pass -quantizers set it to point to their output colormaps. Thus you have to -do one of these two things to notify the library that something has changed. -Yup, it's a bit klugy, but it's necessary to do it this way for backwards -compatibility.) - -Note that in buffered-image mode, the library generates any requested colormap -during jpeg_start_output(), not during jpeg_start_decompress(). - -When using two-pass quantization, jpeg_start_output() makes a pass over the -buffered image to determine the optimum color map; it therefore may take a -significant amount of time, whereas ordinarily it does little work. The -progress monitor hook is called during this pass, if defined. It is also -important to realize that if the specified target scan number is greater than -or equal to the current input scan number, jpeg_start_output() will attempt -to consume input as it makes this pass. If you use a suspending data source, -you need to check for a FALSE return from jpeg_start_output() under these -conditions. The combination of 2-pass quantization and a not-yet-fully-read -target scan is the only case in which jpeg_start_output() will consume input. - - -Application authors who support buffered-image mode may be tempted to use it -for all JPEG images, even single-scan ones. This will work, but it is -inefficient: there is no need to create an image-sized coefficient buffer for -single-scan images. Requesting buffered-image mode for such an image wastes -memory. Worse, it can cost time on large images, since the buffered data has -to be swapped out or written to a temporary file. If you are concerned about -maximum performance on baseline JPEG files, you should use buffered-image -mode only when the incoming file actually has multiple scans. This can be -tested by calling jpeg_has_multiple_scans(), which will return a correct -result at any time after jpeg_read_header() completes. - -It is also worth noting that when you use jpeg_consume_input() to let input -processing get ahead of output processing, the resulting pattern of access to -the coefficient buffer is quite nonsequential. It's best to use the memory -manager jmemnobs.c if you can (ie, if you have enough real or virtual main -memory). If not, at least make sure that max_memory_to_use is set as high as -possible. If the JPEG memory manager has to use a temporary file, you will -probably see a lot of disk traffic and poor performance. (This could be -improved with additional work on the memory manager, but we haven't gotten -around to it yet.) - -In some applications it may be convenient to use jpeg_consume_input() for all -input processing, including reading the initial markers; that is, you may -wish to call jpeg_consume_input() instead of jpeg_read_header() during -startup. This works, but note that you must check for JPEG_REACHED_SOS and -JPEG_REACHED_EOI return codes as the equivalent of jpeg_read_header's codes. -Once the first SOS marker has been reached, you must call -jpeg_start_decompress() before jpeg_consume_input() will consume more input; -it'll just keep returning JPEG_REACHED_SOS until you do. If you read a -tables-only file this way, jpeg_consume_input() will return JPEG_REACHED_EOI -without ever returning JPEG_REACHED_SOS; be sure to check for this case. -If this happens, the decompressor will not read any more input until you call -jpeg_abort() to reset it. It is OK to call jpeg_consume_input() even when not -using buffered-image mode, but in that case it's basically a no-op after the -initial markers have been read: it will just return JPEG_SUSPENDED. - - -Abbreviated datastreams and multiple images -------------------------------------------- - -A JPEG compression or decompression object can be reused to process multiple -images. This saves a small amount of time per image by eliminating the -"create" and "destroy" operations, but that isn't the real purpose of the -feature. Rather, reuse of an object provides support for abbreviated JPEG -datastreams. Object reuse can also simplify processing a series of images in -a single input or output file. This section explains these features. - -A JPEG file normally contains several hundred bytes worth of quantization -and Huffman tables. In a situation where many images will be stored or -transmitted with identical tables, this may represent an annoying overhead. -The JPEG standard therefore permits tables to be omitted. The standard -defines three classes of JPEG datastreams: - * "Interchange" datastreams contain an image and all tables needed to decode - the image. These are the usual kind of JPEG file. - * "Abbreviated image" datastreams contain an image, but are missing some or - all of the tables needed to decode that image. - * "Abbreviated table specification" (henceforth "tables-only") datastreams - contain only table specifications. -To decode an abbreviated image, it is necessary to load the missing table(s) -into the decoder beforehand. This can be accomplished by reading a separate -tables-only file. A variant scheme uses a series of images in which the first -image is an interchange (complete) datastream, while subsequent ones are -abbreviated and rely on the tables loaded by the first image. It is assumed -that once the decoder has read a table, it will remember that table until a -new definition for the same table number is encountered. - -It is the application designer's responsibility to figure out how to associate -the correct tables with an abbreviated image. While abbreviated datastreams -can be useful in a closed environment, their use is strongly discouraged in -any situation where data exchange with other applications might be needed. -Caveat designer. - -The JPEG library provides support for reading and writing any combination of -tables-only datastreams and abbreviated images. In both compression and -decompression objects, a quantization or Huffman table will be retained for -the lifetime of the object, unless it is overwritten by a new table definition. - - -To create abbreviated image datastreams, it is only necessary to tell the -compressor not to emit some or all of the tables it is using. Each -quantization and Huffman table struct contains a boolean field "sent_table", -which normally is initialized to FALSE. For each table used by the image, the -header-writing process emits the table and sets sent_table = TRUE unless it is -already TRUE. (In normal usage, this prevents outputting the same table -definition multiple times, as would otherwise occur because the chroma -components typically share tables.) Thus, setting this field to TRUE before -calling jpeg_start_compress() will prevent the table from being written at -all. - -If you want to create a "pure" abbreviated image file containing no tables, -just call "jpeg_suppress_tables(&cinfo, TRUE)" after constructing all the -tables. If you want to emit some but not all tables, you'll need to set the -individual sent_table fields directly. - -To create an abbreviated image, you must also call jpeg_start_compress() -with a second parameter of FALSE, not TRUE. Otherwise jpeg_start_compress() -will force all the sent_table fields to FALSE. (This is a safety feature to -prevent abbreviated images from being created accidentally.) - -To create a tables-only file, perform the same parameter setup that you -normally would, but instead of calling jpeg_start_compress() and so on, call -jpeg_write_tables(&cinfo). This will write an abbreviated datastream -containing only SOI, DQT and/or DHT markers, and EOI. All the quantization -and Huffman tables that are currently defined in the compression object will -be emitted unless their sent_tables flag is already TRUE, and then all the -sent_tables flags will be set TRUE. - -A sure-fire way to create matching tables-only and abbreviated image files -is to proceed as follows: - - create JPEG compression object - set JPEG parameters - set destination to tables-only file - jpeg_write_tables(&cinfo); - set destination to image file - jpeg_start_compress(&cinfo, FALSE); - write data... - jpeg_finish_compress(&cinfo); - -Since the JPEG parameters are not altered between writing the table file and -the abbreviated image file, the same tables are sure to be used. Of course, -you can repeat the jpeg_start_compress() ... jpeg_finish_compress() sequence -many times to produce many abbreviated image files matching the table file. - -You cannot suppress output of the computed Huffman tables when Huffman -optimization is selected. (If you could, there'd be no way to decode the -image...) Generally, you don't want to set optimize_coding = TRUE when -you are trying to produce abbreviated files. - -In some cases you might want to compress an image using tables which are -not stored in the application, but are defined in an interchange or -tables-only file readable by the application. This can be done by setting up -a JPEG decompression object to read the specification file, then copying the -tables into your compression object. See jpeg_copy_critical_parameters() -for an example of copying quantization tables. - - -To read abbreviated image files, you simply need to load the proper tables -into the decompression object before trying to read the abbreviated image. -If the proper tables are stored in the application program, you can just -allocate the table structs and fill in their contents directly. For example, -to load a fixed quantization table into table slot "n": - - if (cinfo.quant_tbl_ptrs[n] == NULL) - cinfo.quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) &cinfo); - quant_ptr = cinfo.quant_tbl_ptrs[n]; /* quant_ptr is JQUANT_TBL* */ - for (i = 0; i < 64; i++) { - /* Qtable[] is desired quantization table, in natural array order */ - quant_ptr->quantval[i] = Qtable[i]; - } - -Code to load a fixed Huffman table is typically (for AC table "n"): - - if (cinfo.ac_huff_tbl_ptrs[n] == NULL) - cinfo.ac_huff_tbl_ptrs[n] = jpeg_alloc_huff_table((j_common_ptr) &cinfo); - huff_ptr = cinfo.ac_huff_tbl_ptrs[n]; /* huff_ptr is JHUFF_TBL* */ - for (i = 1; i <= 16; i++) { - /* counts[i] is number of Huffman codes of length i bits, i=1..16 */ - huff_ptr->bits[i] = counts[i]; - } - for (i = 0; i < 256; i++) { - /* symbols[] is the list of Huffman symbols, in code-length order */ - huff_ptr->huffval[i] = symbols[i]; - } - -(Note that trying to set cinfo.quant_tbl_ptrs[n] to point directly at a -constant JQUANT_TBL object is not safe. If the incoming file happened to -contain a quantization table definition, your master table would get -overwritten! Instead allocate a working table copy and copy the master table -into it, as illustrated above. Ditto for Huffman tables, of course.) - -You might want to read the tables from a tables-only file, rather than -hard-wiring them into your application. The jpeg_read_header() call is -sufficient to read a tables-only file. You must pass a second parameter of -FALSE to indicate that you do not require an image to be present. Thus, the -typical scenario is - - create JPEG decompression object - set source to tables-only file - jpeg_read_header(&cinfo, FALSE); - set source to abbreviated image file - jpeg_read_header(&cinfo, TRUE); - set decompression parameters - jpeg_start_decompress(&cinfo); - read data... - jpeg_finish_decompress(&cinfo); - -In some cases, you may want to read a file without knowing whether it contains -an image or just tables. In that case, pass FALSE and check the return value -from jpeg_read_header(): it will be JPEG_HEADER_OK if an image was found, -JPEG_HEADER_TABLES_ONLY if only tables were found. (A third return value, -JPEG_SUSPENDED, is possible when using a suspending data source manager.) -Note that jpeg_read_header() will not complain if you read an abbreviated -image for which you haven't loaded the missing tables; the missing-table check -occurs later, in jpeg_start_decompress(). - - -It is possible to read a series of images from a single source file by -repeating the jpeg_read_header() ... jpeg_finish_decompress() sequence, -without releasing/recreating the JPEG object or the data source module. -(If you did reinitialize, any partial bufferload left in the data source -buffer at the end of one image would be discarded, causing you to lose the -start of the next image.) When you use this method, stored tables are -automatically carried forward, so some of the images can be abbreviated images -that depend on tables from earlier images. - -If you intend to write a series of images into a single destination file, -you might want to make a specialized data destination module that doesn't -flush the output buffer at term_destination() time. This would speed things -up by some trifling amount. Of course, you'd need to remember to flush the -buffer after the last image. You can make the later images be abbreviated -ones by passing FALSE to jpeg_start_compress(). - - -Special markers ---------------- - -Some applications may need to insert or extract special data in the JPEG -datastream. The JPEG standard provides marker types "COM" (comment) and -"APP0" through "APP15" (application) to hold application-specific data. -Unfortunately, the use of these markers is not specified by the standard. -COM markers are fairly widely used to hold user-supplied text. The JFIF file -format spec uses APP0 markers with specified initial strings to hold certain -data. Adobe applications use APP14 markers beginning with the string "Adobe" -for miscellaneous data. Other APPn markers are rarely seen, but might -contain almost anything. - -If you wish to store user-supplied text, we recommend you use COM markers -and place readable 7-bit ASCII text in them. Newline conventions are not -standardized --- expect to find LF (Unix style), CR/LF (DOS style), or CR -(Mac style). A robust COM reader should be able to cope with random binary -garbage, including nulls, since some applications generate COM markers -containing non-ASCII junk. (But yours should not be one of them.) - -For program-supplied data, use an APPn marker, and be sure to begin it with an -identifying string so that you can tell whether the marker is actually yours. -It's probably best to avoid using APP0 or APP14 for any private markers. -(NOTE: the upcoming SPIFF standard will use APP8 markers; we recommend you -not use APP8 markers for any private purposes, either.) - -Keep in mind that at most 65533 bytes can be put into one marker, but you -can have as many markers as you like. - -By default, the IJG compression library will write a JFIF APP0 marker if the -selected JPEG colorspace is grayscale or YCbCr, or an Adobe APP14 marker if -the selected colorspace is RGB, CMYK, or YCCK. You can disable this, but -we don't recommend it. The decompression library will recognize JFIF and -Adobe markers and will set the JPEG colorspace properly when one is found. - - -You can write special markers immediately following the datastream header by -calling jpeg_write_marker() after jpeg_start_compress() and before the first -call to jpeg_write_scanlines(). When you do this, the markers appear after -the SOI and the JFIF APP0 and Adobe APP14 markers (if written), but before -all else. Specify the marker type parameter as "JPEG_COM" for COM or -"JPEG_APP0 + n" for APPn. (Actually, jpeg_write_marker will let you write -any marker type, but we don't recommend writing any other kinds of marker.) -For example, to write a user comment string pointed to by comment_text: - jpeg_write_marker(cinfo, JPEG_COM, comment_text, strlen(comment_text)); - -If it's not convenient to store all the marker data in memory at once, -you can instead call jpeg_write_m_header() followed by multiple calls to -jpeg_write_m_byte(). If you do it this way, it's your responsibility to -call jpeg_write_m_byte() exactly the number of times given in the length -parameter to jpeg_write_m_header(). (This method lets you empty the -output buffer partway through a marker, which might be important when -using a suspending data destination module. In any case, if you are using -a suspending destination, you should flush its buffer after inserting -any special markers. See "I/O suspension".) - -Or, if you prefer to synthesize the marker byte sequence yourself, -you can just cram it straight into the data destination module. - -If you are writing JFIF 1.02 extension markers (thumbnail images), don't -forget to set cinfo.JFIF_minor_version = 2 so that the encoder will write the -correct JFIF version number in the JFIF header marker. The library's default -is to write version 1.01, but that's wrong if you insert any 1.02 extension -markers. (We could probably get away with just defaulting to 1.02, but there -used to be broken decoders that would complain about unknown minor version -numbers. To reduce compatibility risks it's safest not to write 1.02 unless -you are actually using 1.02 extensions.) - - -When reading, two methods of handling special markers are available: -1. You can ask the library to save the contents of COM and/or APPn markers -into memory, and then examine them at your leisure afterwards. -2. You can supply your own routine to process COM and/or APPn markers -on-the-fly as they are read. -The first method is simpler to use, especially if you are using a suspending -data source; writing a marker processor that copes with input suspension is -not easy (consider what happens if the marker is longer than your available -input buffer). However, the second method conserves memory since the marker -data need not be kept around after it's been processed. - -For either method, you'd normally set up marker handling after creating a -decompression object and before calling jpeg_read_header(), because the -markers of interest will typically be near the head of the file and so will -be scanned by jpeg_read_header. Once you've established a marker handling -method, it will be used for the life of that decompression object -(potentially many datastreams), unless you change it. Marker handling is -determined separately for COM markers and for each APPn marker code. - - -To save the contents of special markers in memory, call - jpeg_save_markers(cinfo, marker_code, length_limit) -where marker_code is the marker type to save, JPEG_COM or JPEG_APP0+n. -(To arrange to save all the special marker types, you need to call this -routine 17 times, for COM and APP0-APP15.) If the incoming marker is longer -than length_limit data bytes, only length_limit bytes will be saved; this -parameter allows you to avoid chewing up memory when you only need to see the -first few bytes of a potentially large marker. If you want to save all the -data, set length_limit to 0xFFFF; that is enough since marker lengths are only -16 bits. As a special case, setting length_limit to 0 prevents that marker -type from being saved at all. (That is the default behavior, in fact.) - -After jpeg_read_header() completes, you can examine the special markers by -following the cinfo->marker_list pointer chain. All the special markers in -the file appear in this list, in order of their occurrence in the file (but -omitting any markers of types you didn't ask for). Both the original data -length and the saved data length are recorded for each list entry; the latter -will not exceed length_limit for the particular marker type. Note that these -lengths exclude the marker length word, whereas the stored representation -within the JPEG file includes it. (Hence the maximum data length is really -only 65533.) - -It is possible that additional special markers appear in the file beyond the -SOS marker at which jpeg_read_header stops; if so, the marker list will be -extended during reading of the rest of the file. This is not expected to be -common, however. If you are short on memory you may want to reset the length -limit to zero for all marker types after finishing jpeg_read_header, to -ensure that the max_memory_to_use setting cannot be exceeded due to addition -of later markers. - -The marker list remains stored until you call jpeg_finish_decompress or -jpeg_abort, at which point the memory is freed and the list is set to empty. -(jpeg_destroy also releases the storage, of course.) - -Note that the library is internally interested in APP0 and APP14 markers; -if you try to set a small nonzero length limit on these types, the library -will silently force the length up to the minimum it wants. (But you can set -a zero length limit to prevent them from being saved at all.) Also, in a -16-bit environment, the maximum length limit may be constrained to less than -65533 by malloc() limitations. It is therefore best not to assume that the -effective length limit is exactly what you set it to be. - - -If you want to supply your own marker-reading routine, you do it by calling -jpeg_set_marker_processor(). A marker processor routine must have the -signature - boolean jpeg_marker_parser_method (j_decompress_ptr cinfo) -Although the marker code is not explicitly passed, the routine can find it -in cinfo->unread_marker. At the time of call, the marker proper has been -read from the data source module. The processor routine is responsible for -reading the marker length word and the remaining parameter bytes, if any. -Return TRUE to indicate success. (FALSE should be returned only if you are -using a suspending data source and it tells you to suspend. See the standard -marker processors in jdmarker.c for appropriate coding methods if you need to -use a suspending data source.) - -If you override the default APP0 or APP14 processors, it is up to you to -recognize JFIF and Adobe markers if you want colorspace recognition to occur -properly. We recommend copying and extending the default processors if you -want to do that. (A better idea is to save these marker types for later -examination by calling jpeg_save_markers(); that method doesn't interfere -with the library's own processing of these markers.) - -jpeg_set_marker_processor() and jpeg_save_markers() are mutually exclusive ---- if you call one it overrides any previous call to the other, for the -particular marker type specified. - -A simple example of an external COM processor can be found in djpeg.c. -Also, see jpegtran.c for an example of using jpeg_save_markers. - - -Raw (downsampled) image data ----------------------------- - -Some applications need to supply already-downsampled image data to the JPEG -compressor, or to receive raw downsampled data from the decompressor. The -library supports this requirement by allowing the application to write or -read raw data, bypassing the normal preprocessing or postprocessing steps. -The interface is different from the standard one and is somewhat harder to -use. If your interest is merely in bypassing color conversion, we recommend -that you use the standard interface and simply set jpeg_color_space = -in_color_space (or jpeg_color_space = out_color_space for decompression). -The mechanism described in this section is necessary only to supply or -receive downsampled image data, in which not all components have the same -dimensions. - - -To compress raw data, you must supply the data in the colorspace to be used -in the JPEG file (please read the earlier section on Special color spaces) -and downsampled to the sampling factors specified in the JPEG parameters. -You must supply the data in the format used internally by the JPEG library, -namely a JSAMPIMAGE array. This is an array of pointers to two-dimensional -arrays, each of type JSAMPARRAY. Each 2-D array holds the values for one -color component. This structure is necessary since the components are of -different sizes. If the image dimensions are not a multiple of the MCU size, -you must also pad the data correctly (usually, this is done by replicating -the last column and/or row). The data must be padded to a multiple of a DCT -block in each component: that is, each downsampled row must contain a -multiple of 8 valid samples, and there must be a multiple of 8 sample rows -for each component. (For applications such as conversion of digital TV -images, the standard image size is usually a multiple of the DCT block size, -so that no padding need actually be done.) - -The procedure for compression of raw data is basically the same as normal -compression, except that you call jpeg_write_raw_data() in place of -jpeg_write_scanlines(). Before calling jpeg_start_compress(), you must do -the following: - * Set cinfo->raw_data_in to TRUE. (It is set FALSE by jpeg_set_defaults().) - This notifies the library that you will be supplying raw data. - Furthermore, set cinfo->do_fancy_downsampling to FALSE if you want to use - real downsampled data. (It is set TRUE by jpeg_set_defaults().) - * Ensure jpeg_color_space is correct --- an explicit jpeg_set_colorspace() - call is a good idea. Note that since color conversion is bypassed, - in_color_space is ignored, except that jpeg_set_defaults() uses it to - choose the default jpeg_color_space setting. - * Ensure the sampling factors, cinfo->comp_info[i].h_samp_factor and - cinfo->comp_info[i].v_samp_factor, are correct. Since these indicate the - dimensions of the data you are supplying, it's wise to set them - explicitly, rather than assuming the library's defaults are what you want. - -To pass raw data to the library, call jpeg_write_raw_data() in place of -jpeg_write_scanlines(). The two routines work similarly except that -jpeg_write_raw_data takes a JSAMPIMAGE data array rather than JSAMPARRAY. -The scanlines count passed to and returned from jpeg_write_raw_data is -measured in terms of the component with the largest v_samp_factor. - -jpeg_write_raw_data() processes one MCU row per call, which is to say -v_samp_factor*DCTSIZE sample rows of each component. The passed num_lines -value must be at least max_v_samp_factor*DCTSIZE, and the return value will -be exactly that amount (or possibly some multiple of that amount, in future -library versions). This is true even on the last call at the bottom of the -image; don't forget to pad your data as necessary. - -The required dimensions of the supplied data can be computed for each -component as - cinfo->comp_info[i].width_in_blocks*DCTSIZE samples per row - cinfo->comp_info[i].height_in_blocks*DCTSIZE rows in image -after jpeg_start_compress() has initialized those fields. If the valid data -is smaller than this, it must be padded appropriately. For some sampling -factors and image sizes, additional dummy DCT blocks are inserted to make -the image a multiple of the MCU dimensions. The library creates such dummy -blocks itself; it does not read them from your supplied data. Therefore you -need never pad by more than DCTSIZE samples. An example may help here. -Assume 2h2v downsampling of YCbCr data, that is - cinfo->comp_info[0].h_samp_factor = 2 for Y - cinfo->comp_info[0].v_samp_factor = 2 - cinfo->comp_info[1].h_samp_factor = 1 for Cb - cinfo->comp_info[1].v_samp_factor = 1 - cinfo->comp_info[2].h_samp_factor = 1 for Cr - cinfo->comp_info[2].v_samp_factor = 1 -and suppose that the nominal image dimensions (cinfo->image_width and -cinfo->image_height) are 101x101 pixels. Then jpeg_start_compress() will -compute downsampled_width = 101 and width_in_blocks = 13 for Y, -downsampled_width = 51 and width_in_blocks = 7 for Cb and Cr (and the same -for the height fields). You must pad the Y data to at least 13*8 = 104 -columns and rows, the Cb/Cr data to at least 7*8 = 56 columns and rows. The -MCU height is max_v_samp_factor = 2 DCT rows so you must pass at least 16 -scanlines on each call to jpeg_write_raw_data(), which is to say 16 actual -sample rows of Y and 8 each of Cb and Cr. A total of 7 MCU rows are needed, -so you must pass a total of 7*16 = 112 "scanlines". The last DCT block row -of Y data is dummy, so it doesn't matter what you pass for it in the data -arrays, but the scanlines count must total up to 112 so that all of the Cb -and Cr data gets passed. - -Output suspension is supported with raw-data compression: if the data -destination module suspends, jpeg_write_raw_data() will return 0. -In this case the same data rows must be passed again on the next call. - - -Decompression with raw data output implies bypassing all postprocessing. -You must deal with the color space and sampling factors present in the -incoming file. If your application only handles, say, 2h1v YCbCr data, -you must check for and fail on other color spaces or other sampling factors. -The library will not convert to a different color space for you. - -To obtain raw data output, set cinfo->raw_data_out = TRUE before -jpeg_start_decompress() (it is set FALSE by jpeg_read_header()). Be sure to -verify that the color space and sampling factors are ones you can handle. -Furthermore, set cinfo->do_fancy_upsampling = FALSE if you want to get real -downsampled data (it is set TRUE by jpeg_read_header()). -Then call jpeg_read_raw_data() in place of jpeg_read_scanlines(). The -decompression process is otherwise the same as usual. - -jpeg_read_raw_data() returns one MCU row per call, and thus you must pass a -buffer of at least max_v_samp_factor*DCTSIZE scanlines (scanline counting is -the same as for raw-data compression). The buffer you pass must be large -enough to hold the actual data plus padding to DCT-block boundaries. As with -compression, any entirely dummy DCT blocks are not processed so you need not -allocate space for them, but the total scanline count includes them. The -above example of computing buffer dimensions for raw-data compression is -equally valid for decompression. - -Input suspension is supported with raw-data decompression: if the data source -module suspends, jpeg_read_raw_data() will return 0. You can also use -buffered-image mode to read raw data in multiple passes. - - -Really raw data: DCT coefficients ---------------------------------- - -It is possible to read or write the contents of a JPEG file as raw DCT -coefficients. This facility is mainly intended for use in lossless -transcoding between different JPEG file formats. Other possible applications -include lossless cropping of a JPEG image, lossless reassembly of a -multi-strip or multi-tile TIFF/JPEG file into a single JPEG datastream, etc. - -To read the contents of a JPEG file as DCT coefficients, open the file and do -jpeg_read_header() as usual. But instead of calling jpeg_start_decompress() -and jpeg_read_scanlines(), call jpeg_read_coefficients(). This will read the -entire image into a set of virtual coefficient-block arrays, one array per -component. The return value is a pointer to an array of virtual-array -descriptors. Each virtual array can be accessed directly using the JPEG -memory manager's access_virt_barray method (see Memory management, below, -and also read structure.txt's discussion of virtual array handling). Or, -for simple transcoding to a different JPEG file format, the array list can -just be handed directly to jpeg_write_coefficients(). - -Each block in the block arrays contains quantized coefficient values in -normal array order (not JPEG zigzag order). The block arrays contain only -DCT blocks containing real data; any entirely-dummy blocks added to fill out -interleaved MCUs at the right or bottom edges of the image are discarded -during reading and are not stored in the block arrays. (The size of each -block array can be determined from the width_in_blocks and height_in_blocks -fields of the component's comp_info entry.) This is also the data format -expected by jpeg_write_coefficients(). - -When you are done using the virtual arrays, call jpeg_finish_decompress() -to release the array storage and return the decompression object to an idle -state; or just call jpeg_destroy() if you don't need to reuse the object. - -If you use a suspending data source, jpeg_read_coefficients() will return -NULL if it is forced to suspend; a non-NULL return value indicates successful -completion. You need not test for a NULL return value when using a -non-suspending data source. - -It is also possible to call jpeg_read_coefficients() to obtain access to the -decoder's coefficient arrays during a normal decode cycle in buffered-image -mode. This frammish might be useful for progressively displaying an incoming -image and then re-encoding it without loss. To do this, decode in buffered- -image mode as discussed previously, then call jpeg_read_coefficients() after -the last jpeg_finish_output() call. The arrays will be available for your use -until you call jpeg_finish_decompress(). - - -To write the contents of a JPEG file as DCT coefficients, you must provide -the DCT coefficients stored in virtual block arrays. You can either pass -block arrays read from an input JPEG file by jpeg_read_coefficients(), or -allocate virtual arrays from the JPEG compression object and fill them -yourself. In either case, jpeg_write_coefficients() is substituted for -jpeg_start_compress() and jpeg_write_scanlines(). Thus the sequence is - * Create compression object - * Set all compression parameters as necessary - * Request virtual arrays if needed - * jpeg_write_coefficients() - * jpeg_finish_compress() - * Destroy or re-use compression object -jpeg_write_coefficients() is passed a pointer to an array of virtual block -array descriptors; the number of arrays is equal to cinfo.num_components. - -The virtual arrays need only have been requested, not realized, before -jpeg_write_coefficients() is called. A side-effect of -jpeg_write_coefficients() is to realize any virtual arrays that have been -requested from the compression object's memory manager. Thus, when obtaining -the virtual arrays from the compression object, you should fill the arrays -after calling jpeg_write_coefficients(). The data is actually written out -when you call jpeg_finish_compress(); jpeg_write_coefficients() only writes -the file header. - -When writing raw DCT coefficients, it is crucial that the JPEG quantization -tables and sampling factors match the way the data was encoded, or the -resulting file will be invalid. For transcoding from an existing JPEG file, -we recommend using jpeg_copy_critical_parameters(). This routine initializes -all the compression parameters to default values (like jpeg_set_defaults()), -then copies the critical information from a source decompression object. -The decompression object should have just been used to read the entire -JPEG input file --- that is, it should be awaiting jpeg_finish_decompress(). - -jpeg_write_coefficients() marks all tables stored in the compression object -as needing to be written to the output file (thus, it acts like -jpeg_start_compress(cinfo, TRUE)). This is for safety's sake, to avoid -emitting abbreviated JPEG files by accident. If you really want to emit an -abbreviated JPEG file, call jpeg_suppress_tables(), or set the tables' -individual sent_table flags, between calling jpeg_write_coefficients() and -jpeg_finish_compress(). - - -Progress monitoring -------------------- - -Some applications may need to regain control from the JPEG library every so -often. The typical use of this feature is to produce a percent-done bar or -other progress display. (For a simple example, see cjpeg.c or djpeg.c.) -Although you do get control back frequently during the data-transferring pass -(the jpeg_read_scanlines or jpeg_write_scanlines loop), any additional passes -will occur inside jpeg_finish_compress or jpeg_start_decompress; those -routines may take a long time to execute, and you don't get control back -until they are done. - -You can define a progress-monitor routine which will be called periodically -by the library. No guarantees are made about how often this call will occur, -so we don't recommend you use it for mouse tracking or anything like that. -At present, a call will occur once per MCU row, scanline, or sample row -group, whichever unit is convenient for the current processing mode; so the -wider the image, the longer the time between calls. During the data -transferring pass, only one call occurs per call of jpeg_read_scanlines or -jpeg_write_scanlines, so don't pass a large number of scanlines at once if -you want fine resolution in the progress count. (If you really need to use -the callback mechanism for time-critical tasks like mouse tracking, you could -insert additional calls inside some of the library's inner loops.) - -To establish a progress-monitor callback, create a struct jpeg_progress_mgr, -fill in its progress_monitor field with a pointer to your callback routine, -and set cinfo->progress to point to the struct. The callback will be called -whenever cinfo->progress is non-NULL. (This pointer is set to NULL by -jpeg_create_compress or jpeg_create_decompress; the library will not change -it thereafter. So if you allocate dynamic storage for the progress struct, -make sure it will live as long as the JPEG object does. Allocating from the -JPEG memory manager with lifetime JPOOL_PERMANENT will work nicely.) You -can use the same callback routine for both compression and decompression. - -The jpeg_progress_mgr struct contains four fields which are set by the library: - long pass_counter; /* work units completed in this pass */ - long pass_limit; /* total number of work units in this pass */ - int completed_passes; /* passes completed so far */ - int total_passes; /* total number of passes expected */ -During any one pass, pass_counter increases from 0 up to (not including) -pass_limit; the step size is usually but not necessarily 1. The pass_limit -value may change from one pass to another. The expected total number of -passes is in total_passes, and the number of passes already completed is in -completed_passes. Thus the fraction of work completed may be estimated as - completed_passes + (pass_counter/pass_limit) - -------------------------------------------- - total_passes -ignoring the fact that the passes may not be equal amounts of work. - -When decompressing, pass_limit can even change within a pass, because it -depends on the number of scans in the JPEG file, which isn't always known in -advance. The computed fraction-of-work-done may jump suddenly (if the library -discovers it has overestimated the number of scans) or even decrease (in the -opposite case). It is not wise to put great faith in the work estimate. - -When using the decompressor's buffered-image mode, the progress monitor work -estimate is likely to be completely unhelpful, because the library has no way -to know how many output passes will be demanded of it. Currently, the library -sets total_passes based on the assumption that there will be one more output -pass if the input file end hasn't yet been read (jpeg_input_complete() isn't -TRUE), but no more output passes if the file end has been reached when the -output pass is started. This means that total_passes will rise as additional -output passes are requested. If you have a way of determining the input file -size, estimating progress based on the fraction of the file that's been read -will probably be more useful than using the library's value. - - -Memory management ------------------ - -This section covers some key facts about the JPEG library's built-in memory -manager. For more info, please read structure.txt's section about the memory -manager, and consult the source code if necessary. - -All memory and temporary file allocation within the library is done via the -memory manager. If necessary, you can replace the "back end" of the memory -manager to control allocation yourself (for example, if you don't want the -library to use malloc() and free() for some reason). - -Some data is allocated "permanently" and will not be freed until the JPEG -object is destroyed. Most data is allocated "per image" and is freed by -jpeg_finish_compress, jpeg_finish_decompress, or jpeg_abort. You can call the -memory manager yourself to allocate structures that will automatically be -freed at these times. Typical code for this is - ptr = (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, size); -Use JPOOL_PERMANENT to get storage that lasts as long as the JPEG object. -Use alloc_large instead of alloc_small for anything bigger than a few Kbytes. -There are also alloc_sarray and alloc_barray routines that automatically -build 2-D sample or block arrays. - -The library's minimum space requirements to process an image depend on the -image's width, but not on its height, because the library ordinarily works -with "strip" buffers that are as wide as the image but just a few rows high. -Some operating modes (eg, two-pass color quantization) require full-image -buffers. Such buffers are treated as "virtual arrays": only the current strip -need be in memory, and the rest can be swapped out to a temporary file. - -If you use the simplest memory manager back end (jmemnobs.c), then no -temporary files are used; virtual arrays are simply malloc()'d. Images bigger -than memory can be processed only if your system supports virtual memory. -The other memory manager back ends support temporary files of various flavors -and thus work in machines without virtual memory. They may also be useful on -Unix machines if you need to process images that exceed available swap space. - -When using temporary files, the library will make the in-memory buffers for -its virtual arrays just big enough to stay within a "maximum memory" setting. -Your application can set this limit by setting cinfo->mem->max_memory_to_use -after creating the JPEG object. (Of course, there is still a minimum size for -the buffers, so the max-memory setting is effective only if it is bigger than -the minimum space needed.) If you allocate any large structures yourself, you -must allocate them before jpeg_start_compress() or jpeg_start_decompress() in -order to have them counted against the max memory limit. Also keep in mind -that space allocated with alloc_small() is ignored, on the assumption that -it's too small to be worth worrying about; so a reasonable safety margin -should be left when setting max_memory_to_use. - -If you use the jmemname.c or jmemdos.c memory manager back end, it is -important to clean up the JPEG object properly to ensure that the temporary -files get deleted. (This is especially crucial with jmemdos.c, where the -"temporary files" may be extended-memory segments; if they are not freed, -DOS will require a reboot to recover the memory.) Thus, with these memory -managers, it's a good idea to provide a signal handler that will trap any -early exit from your program. The handler should call either jpeg_abort() -or jpeg_destroy() for any active JPEG objects. A handler is not needed with -jmemnobs.c, and shouldn't be necessary with jmemansi.c or jmemmac.c either, -since the C library is supposed to take care of deleting files made with -tmpfile(). - - -Memory usage ------------- - -Working memory requirements while performing compression or decompression -depend on image dimensions, image characteristics (such as colorspace and -JPEG process), and operating mode (application-selected options). - -As of v6b, the decompressor requires: - 1. About 24K in more-or-less-fixed-size data. This varies a bit depending - on operating mode and image characteristics (particularly color vs. - grayscale), but it doesn't depend on image dimensions. - 2. Strip buffers (of size proportional to the image width) for IDCT and - upsampling results. The worst case for commonly used sampling factors - is about 34 bytes * width in pixels for a color image. A grayscale image - only needs about 8 bytes per pixel column. - 3. A full-image DCT coefficient buffer is needed to decode a multi-scan JPEG - file (including progressive JPEGs), or whenever you select buffered-image - mode. This takes 2 bytes/coefficient. At typical 2x2 sampling, that's - 3 bytes per pixel for a color image. Worst case (1x1 sampling) requires - 6 bytes/pixel. For grayscale, figure 2 bytes/pixel. - 4. To perform 2-pass color quantization, the decompressor also needs a - 128K color lookup table and a full-image pixel buffer (3 bytes/pixel). -This does not count any memory allocated by the application, such as a -buffer to hold the final output image. - -The above figures are valid for 8-bit JPEG data precision and a machine with -32-bit ints. For 12-bit JPEG data, double the size of the strip buffers and -quantization pixel buffer. The "fixed-size" data will be somewhat smaller -with 16-bit ints, larger with 64-bit ints. Also, CMYK or other unusual -color spaces will require different amounts of space. - -The full-image coefficient and pixel buffers, if needed at all, do not -have to be fully RAM resident; you can have the library use temporary -files instead when the total memory usage would exceed a limit you set. -(But if your OS supports virtual memory, it's probably better to just use -jmemnobs and let the OS do the swapping.) - -The compressor's memory requirements are similar, except that it has no need -for color quantization. Also, it needs a full-image DCT coefficient buffer -if Huffman-table optimization is asked for, even if progressive mode is not -requested. - -If you need more detailed information about memory usage in a particular -situation, you can enable the MEM_STATS code in jmemmgr.c. - - -Library compile-time options ----------------------------- - -A number of compile-time options are available by modifying jmorecfg.h. - -The JPEG standard provides for both the baseline 8-bit DCT process and -a 12-bit DCT process. The IJG code supports 12-bit JPEG if you define -BITS_IN_JSAMPLE as 12 rather than 8. Note that this causes JSAMPLE to be -larger than a char, so it affects the surrounding application's image data. -The sample applications cjpeg and djpeg can support 12-bit mode only for PPM -and GIF file formats; you must disable the other file formats to compile a -12-bit cjpeg or djpeg. (install.txt has more information about that.) -At present, a 12-bit library can handle *only* 12-bit images, not both -precisions. (If you need to include both 8- and 12-bit libraries in a single -application, you could probably do it by defining NEED_SHORT_EXTERNAL_NAMES -for just one of the copies. You'd have to access the 8-bit and 12-bit copies -from separate application source files. This is untested ... if you try it, -we'd like to hear whether it works!) - -Note that a 12-bit library always compresses in Huffman optimization mode, -in order to generate valid Huffman tables. This is necessary because our -default Huffman tables only cover 8-bit data. If you need to output 12-bit -files in one pass, you'll have to supply suitable default Huffman tables. -You may also want to supply your own DCT quantization tables; the existing -quality-scaling code has been developed for 8-bit use, and probably doesn't -generate especially good tables for 12-bit. - -The maximum number of components (color channels) in the image is determined -by MAX_COMPONENTS. The JPEG standard allows up to 255 components, but we -expect that few applications will need more than four or so. - -On machines with unusual data type sizes, you may be able to improve -performance or reduce memory space by tweaking the various typedefs in -jmorecfg.h. In particular, on some RISC CPUs, access to arrays of "short"s -is quite slow; consider trading memory for speed by making JCOEF, INT16, and -UINT16 be "int" or "unsigned int". UINT8 is also a candidate to become int. -You probably don't want to make JSAMPLE be int unless you have lots of memory -to burn. - -You can reduce the size of the library by compiling out various optional -functions. To do this, undefine xxx_SUPPORTED symbols as necessary. - -You can also save a few K by not having text error messages in the library; -the standard error message table occupies about 5Kb. This is particularly -reasonable for embedded applications where there's no good way to display -a message anyway. To do this, remove the creation of the message table -(jpeg_std_message_table[]) from jerror.c, and alter format_message to do -something reasonable without it. You could output the numeric value of the -message code number, for example. If you do this, you can also save a couple -more K by modifying the TRACEMSn() macros in jerror.h to expand to nothing; -you don't need trace capability anyway, right? - - -Portability considerations --------------------------- - -The JPEG library has been written to be extremely portable; the sample -applications cjpeg and djpeg are slightly less so. This section summarizes -the design goals in this area. (If you encounter any bugs that cause the -library to be less portable than is claimed here, we'd appreciate hearing -about them.) - -The code works fine on ANSI C, C++, and pre-ANSI C compilers, using any of -the popular system include file setups, and some not-so-popular ones too. -See install.txt for configuration procedures. - -The code is not dependent on the exact sizes of the C data types. As -distributed, we make the assumptions that - char is at least 8 bits wide - short is at least 16 bits wide - int is at least 16 bits wide - long is at least 32 bits wide -(These are the minimum requirements of the ANSI C standard.) Wider types will -work fine, although memory may be used inefficiently if char is much larger -than 8 bits or short is much bigger than 16 bits. The code should work -equally well with 16- or 32-bit ints. - -In a system where these assumptions are not met, you may be able to make the -code work by modifying the typedefs in jmorecfg.h. However, you will probably -have difficulty if int is less than 16 bits wide, since references to plain -int abound in the code. - -char can be either signed or unsigned, although the code runs faster if an -unsigned char type is available. If char is wider than 8 bits, you will need -to redefine JOCTET and/or provide custom data source/destination managers so -that JOCTET represents exactly 8 bits of data on external storage. - -The JPEG library proper does not assume ASCII representation of characters. -But some of the image file I/O modules in cjpeg/djpeg do have ASCII -dependencies in file-header manipulation; so does cjpeg's select_file_type() -routine. - -The JPEG library does not rely heavily on the C library. In particular, C -stdio is used only by the data source/destination modules and the error -handler, all of which are application-replaceable. (cjpeg/djpeg are more -heavily dependent on stdio.) malloc and free are called only from the memory -manager "back end" module, so you can use a different memory allocator by -replacing that one file. - -The code generally assumes that C names must be unique in the first 15 -characters. However, global function names can be made unique in the -first 6 characters by defining NEED_SHORT_EXTERNAL_NAMES. - -More info about porting the code may be gleaned by reading jconfig.txt, -jmorecfg.h, and jinclude.h. - - -Notes for MS-DOS implementors ------------------------------ - -The IJG code is designed to work efficiently in 80x86 "small" or "medium" -memory models (i.e., data pointers are 16 bits unless explicitly declared -"far"; code pointers can be either size). You may be able to use small -model to compile cjpeg or djpeg by itself, but you will probably have to use -medium model for any larger application. This won't make much difference in -performance. You *will* take a noticeable performance hit if you use a -large-data memory model (perhaps 10%-25%), and you should avoid "huge" model -if at all possible. - -The JPEG library typically needs 2Kb-3Kb of stack space. It will also -malloc about 20K-30K of near heap space while executing (and lots of far -heap, but that doesn't count in this calculation). This figure will vary -depending on selected operating mode, and to a lesser extent on image size. -There is also about 5Kb-6Kb of constant data which will be allocated in the -near data segment (about 4Kb of this is the error message table). -Thus you have perhaps 20K available for other modules' static data and near -heap space before you need to go to a larger memory model. The C library's -static data will account for several K of this, but that still leaves a good -deal for your needs. (If you are tight on space, you could reduce the sizes -of the I/O buffers allocated by jdatasrc.c and jdatadst.c, say from 4K to -1K. Another possibility is to move the error message table to far memory; -this should be doable with only localized hacking on jerror.c.) - -About 2K of the near heap space is "permanent" memory that will not be -released until you destroy the JPEG object. This is only an issue if you -save a JPEG object between compression or decompression operations. - -Far data space may also be a tight resource when you are dealing with large -images. The most memory-intensive case is decompression with two-pass color -quantization, or single-pass quantization to an externally supplied color -map. This requires a 128Kb color lookup table plus strip buffers amounting -to about 40 bytes per column for typical sampling ratios (eg, about 25600 -bytes for a 640-pixel-wide image). You may not be able to process wide -images if you have large data structures of your own. - -Of course, all of these concerns vanish if you use a 32-bit flat-memory-model -compiler, such as DJGPP or Watcom C. We highly recommend flat model if you -can use it; the JPEG library is significantly faster in flat model. diff --git a/jpeg/ltmain.sh b/jpeg/ltmain.sh deleted file mode 100755 index 63ae69d..0000000 --- a/jpeg/ltmain.sh +++ /dev/null @@ -1,9655 +0,0 @@ - -# libtool (GNU libtool) 2.4.2 -# Written by Gordon Matzigkeit , 1996 - -# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, -# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. 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Be careful to quote the path - # and the sed script, to avoid splitting on whitespace, but - # also don't use non-portable quotes within backquotes within - # quotes we have to do it in 2 steps: - extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` - eval "$extractedcf" - else - func_error "ignoring unknown tag $tagname" - fi - ;; - esac -} - -# func_check_version_match -# Ensure that we are using m4 macros, and libtool script from the same -# release of libtool. -func_check_version_match () -{ - if test "$package_revision" != "$macro_revision"; then - if test "$VERSION" != "$macro_version"; then - if test -z "$macro_version"; then - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from an older release. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - fi - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, -$progname: but the definition of this LT_INIT comes from revision $macro_revision. -$progname: You should recreate aclocal.m4 with macros from revision $package_revision -$progname: of $PACKAGE $VERSION and run autoconf again. -_LT_EOF - fi - - exit $EXIT_MISMATCH - fi -} - - -# Shorthand for --mode=foo, only valid as the first argument -case $1 in -clean|clea|cle|cl) - shift; set dummy --mode clean ${1+"$@"}; shift - ;; -compile|compil|compi|comp|com|co|c) - shift; set dummy --mode compile ${1+"$@"}; shift - ;; -execute|execut|execu|exec|exe|ex|e) - shift; set dummy --mode execute ${1+"$@"}; shift - ;; -finish|finis|fini|fin|fi|f) - shift; set dummy --mode finish ${1+"$@"}; shift - ;; -install|instal|insta|inst|ins|in|i) - shift; set dummy --mode install ${1+"$@"}; shift - ;; -link|lin|li|l) - shift; set dummy --mode link ${1+"$@"}; shift - ;; -uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) - shift; set dummy --mode uninstall ${1+"$@"}; shift - ;; -esac - - - -# Option defaults: -opt_debug=: -opt_dry_run=false -opt_config=false -opt_preserve_dup_deps=false -opt_features=false -opt_finish=false -opt_help=false -opt_help_all=false -opt_silent=: -opt_warning=: -opt_verbose=: -opt_silent=false -opt_verbose=false - - -# Parse options once, thoroughly. This comes as soon as possible in the -# script to make things like `--version' happen as quickly as we can. -{ - # this just eases exit handling - while test $# -gt 0; do - opt="$1" - shift - case $opt in - --debug|-x) opt_debug='set -x' - func_echo "enabling shell trace mode" - $opt_debug - ;; - --dry-run|--dryrun|-n) - opt_dry_run=: - ;; - --config) - opt_config=: -func_config - ;; - --dlopen|-dlopen) - optarg="$1" - opt_dlopen="${opt_dlopen+$opt_dlopen -}$optarg" - shift - ;; - --preserve-dup-deps) - opt_preserve_dup_deps=: - ;; - --features) - opt_features=: -func_features - ;; - --finish) - opt_finish=: -set dummy --mode finish ${1+"$@"}; shift - ;; - --help) - opt_help=: - ;; - --help-all) - opt_help_all=: -opt_help=': help-all' - ;; - --mode) - test $# = 0 && func_missing_arg $opt && break - optarg="$1" - opt_mode="$optarg" -case $optarg in - # Valid mode arguments: - clean|compile|execute|finish|install|link|relink|uninstall) ;; - - # Catch anything else as an error - *) func_error "invalid argument for $opt" - exit_cmd=exit - break - ;; -esac - shift - ;; - --no-silent|--no-quiet) - opt_silent=false -func_append preserve_args " $opt" - ;; - --no-warning|--no-warn) - opt_warning=false -func_append preserve_args " $opt" - ;; - --no-verbose) - opt_verbose=false -func_append preserve_args " $opt" - ;; - --silent|--quiet) - opt_silent=: -func_append preserve_args " $opt" - opt_verbose=false - ;; - --verbose|-v) - opt_verbose=: -func_append preserve_args " $opt" -opt_silent=false - ;; - --tag) - test $# = 0 && func_missing_arg $opt && break - optarg="$1" - opt_tag="$optarg" -func_append preserve_args " $opt $optarg" -func_enable_tag "$optarg" - shift - ;; - - -\?|-h) func_usage ;; - --help) func_help ;; - --version) func_version ;; - - # Separate optargs to long options: - --*=*) - func_split_long_opt "$opt" - set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"} - shift - ;; - - # Separate non-argument short options: - -\?*|-h*|-n*|-v*) - func_split_short_opt "$opt" - set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - --) break ;; - -*) func_fatal_help "unrecognized option \`$opt'" ;; - *) set dummy "$opt" ${1+"$@"}; shift; break ;; - esac - done - - # Validate options: - - # save first non-option argument - if test "$#" -gt 0; then - nonopt="$opt" - shift - fi - - # preserve --debug - test "$opt_debug" = : || func_append preserve_args " --debug" - - case $host in - *cygwin* | *mingw* | *pw32* | *cegcc*) - # don't eliminate duplications in $postdeps and $predeps - opt_duplicate_compiler_generated_deps=: - ;; - *) - opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps - ;; - esac - - $opt_help || { - # Sanity checks first: - func_check_version_match - - if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then - func_fatal_configuration "not configured to build any kind of library" - fi - - # Darwin sucks - eval std_shrext=\"$shrext_cmds\" - - # Only execute mode is allowed to have -dlopen flags. - if test -n "$opt_dlopen" && test "$opt_mode" != execute; then - func_error "unrecognized option \`-dlopen'" - $ECHO "$help" 1>&2 - exit $EXIT_FAILURE - fi - - # Change the help message to a mode-specific one. - generic_help="$help" - help="Try \`$progname --help --mode=$opt_mode' for more information." - } - - - # Bail if the options were screwed - $exit_cmd $EXIT_FAILURE -} - - - - -## ----------- ## -## Main. ## -## ----------- ## - -# func_lalib_p file -# True iff FILE is a libtool `.la' library or `.lo' object file. -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_lalib_p () -{ - test -f "$1" && - $SED -e 4q "$1" 2>/dev/null \ - | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 -} - -# func_lalib_unsafe_p file -# True iff FILE is a libtool `.la' library or `.lo' object file. -# This function implements the same check as func_lalib_p without -# resorting to external programs. To this end, it redirects stdin and -# closes it afterwards, without saving the original file descriptor. -# As a safety measure, use it only where a negative result would be -# fatal anyway. Works if `file' does not exist. -func_lalib_unsafe_p () -{ - lalib_p=no - if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then - for lalib_p_l in 1 2 3 4 - do - read lalib_p_line - case "$lalib_p_line" in - \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; - esac - done - exec 0<&5 5<&- - fi - test "$lalib_p" = yes -} - -# func_ltwrapper_script_p file -# True iff FILE is a libtool wrapper script -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_script_p () -{ - func_lalib_p "$1" -} - -# func_ltwrapper_executable_p file -# True iff FILE is a libtool wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_executable_p () -{ - func_ltwrapper_exec_suffix= - case $1 in - *.exe) ;; - *) func_ltwrapper_exec_suffix=.exe ;; - esac - $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 -} - -# func_ltwrapper_scriptname file -# Assumes file is an ltwrapper_executable -# uses $file to determine the appropriate filename for a -# temporary ltwrapper_script. -func_ltwrapper_scriptname () -{ - func_dirname_and_basename "$1" "" "." - func_stripname '' '.exe' "$func_basename_result" - func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper" -} - -# func_ltwrapper_p file -# True iff FILE is a libtool wrapper script or wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_p () -{ - func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" -} - - -# func_execute_cmds commands fail_cmd -# Execute tilde-delimited COMMANDS. -# If FAIL_CMD is given, eval that upon failure. -# FAIL_CMD may read-access the current command in variable CMD! -func_execute_cmds () -{ - $opt_debug - save_ifs=$IFS; IFS='~' - for cmd in $1; do - IFS=$save_ifs - eval cmd=\"$cmd\" - func_show_eval "$cmd" "${2-:}" - done - IFS=$save_ifs -} - - -# func_source file -# Source FILE, adding directory component if necessary. -# Note that it is not necessary on cygwin/mingw to append a dot to -# FILE even if both FILE and FILE.exe exist: automatic-append-.exe -# behavior happens only for exec(3), not for open(2)! Also, sourcing -# `FILE.' does not work on cygwin managed mounts. -func_source () -{ - $opt_debug - case $1 in - */* | *\\*) . "$1" ;; - *) . "./$1" ;; - esac -} - - -# func_resolve_sysroot PATH -# Replace a leading = in PATH with a sysroot. Store the result into -# func_resolve_sysroot_result -func_resolve_sysroot () -{ - func_resolve_sysroot_result=$1 - case $func_resolve_sysroot_result in - =*) - func_stripname '=' '' "$func_resolve_sysroot_result" - func_resolve_sysroot_result=$lt_sysroot$func_stripname_result - ;; - esac -} - -# func_replace_sysroot PATH -# If PATH begins with the sysroot, replace it with = and -# store the result into func_replace_sysroot_result. -func_replace_sysroot () -{ - case "$lt_sysroot:$1" in - ?*:"$lt_sysroot"*) - func_stripname "$lt_sysroot" '' "$1" - func_replace_sysroot_result="=$func_stripname_result" - ;; - *) - # Including no sysroot. - func_replace_sysroot_result=$1 - ;; - esac -} - -# func_infer_tag arg -# Infer tagged configuration to use if any are available and -# if one wasn't chosen via the "--tag" command line option. -# Only attempt this if the compiler in the base compile -# command doesn't match the default compiler. -# arg is usually of the form 'gcc ...' -func_infer_tag () -{ - $opt_debug - if test -n "$available_tags" && test -z "$tagname"; then - CC_quoted= - for arg in $CC; do - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case $@ in - # Blanks in the command may have been stripped by the calling shell, - # but not from the CC environment variable when configure was run. - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; - # Blanks at the start of $base_compile will cause this to fail - # if we don't check for them as well. - *) - for z in $available_tags; do - if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then - # Evaluate the configuration. - eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" - CC_quoted= - for arg in $CC; do - # Double-quote args containing other shell metacharacters. - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case "$@ " in - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) - # The compiler in the base compile command matches - # the one in the tagged configuration. - # Assume this is the tagged configuration we want. - tagname=$z - break - ;; - esac - fi - done - # If $tagname still isn't set, then no tagged configuration - # was found and let the user know that the "--tag" command - # line option must be used. - if test -z "$tagname"; then - func_echo "unable to infer tagged configuration" - func_fatal_error "specify a tag with \`--tag'" -# else -# func_verbose "using $tagname tagged configuration" - fi - ;; - esac - fi -} - - - -# func_write_libtool_object output_name pic_name nonpic_name -# Create a libtool object file (analogous to a ".la" file), -# but don't create it if we're doing a dry run. -func_write_libtool_object () -{ - write_libobj=${1} - if test "$build_libtool_libs" = yes; then - write_lobj=\'${2}\' - else - write_lobj=none - fi - - if test "$build_old_libs" = yes; then - write_oldobj=\'${3}\' - else - write_oldobj=none - fi - - $opt_dry_run || { - cat >${write_libobj}T </dev/null` - if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then - func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | - $SED -e "$lt_sed_naive_backslashify"` - else - func_convert_core_file_wine_to_w32_result= - fi - fi -} -# end: func_convert_core_file_wine_to_w32 - - -# func_convert_core_path_wine_to_w32 ARG -# Helper function used by path conversion functions when $build is *nix, and -# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly -# configured wine environment available, with the winepath program in $build's -# $PATH. Assumes ARG has no leading or trailing path separator characters. -# -# ARG is path to be converted from $build format to win32. -# Result is available in $func_convert_core_path_wine_to_w32_result. -# Unconvertible file (directory) names in ARG are skipped; if no directory names -# are convertible, then the result may be empty. -func_convert_core_path_wine_to_w32 () -{ - $opt_debug - # unfortunately, winepath doesn't convert paths, only file names - func_convert_core_path_wine_to_w32_result="" - if test -n "$1"; then - oldIFS=$IFS - IFS=: - for func_convert_core_path_wine_to_w32_f in $1; do - IFS=$oldIFS - func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" - if test -n "$func_convert_core_file_wine_to_w32_result" ; then - if test -z "$func_convert_core_path_wine_to_w32_result"; then - func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result" - else - func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" - fi - fi - done - IFS=$oldIFS - fi -} -# end: func_convert_core_path_wine_to_w32 - - -# func_cygpath ARGS... -# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when -# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) -# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or -# (2), returns the Cygwin file name or path in func_cygpath_result (input -# file name or path is assumed to be in w32 format, as previously converted -# from $build's *nix or MSYS format). In case (3), returns the w32 file name -# or path in func_cygpath_result (input file name or path is assumed to be in -# Cygwin format). Returns an empty string on error. -# -# ARGS are passed to cygpath, with the last one being the file name or path to -# be converted. -# -# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH -# environment variable; do not put it in $PATH. -func_cygpath () -{ - $opt_debug - if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then - func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` - if test "$?" -ne 0; then - # on failure, ensure result is empty - func_cygpath_result= - fi - else - func_cygpath_result= - func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'" - fi -} -#end: func_cygpath - - -# func_convert_core_msys_to_w32 ARG -# Convert file name or path ARG from MSYS format to w32 format. Return -# result in func_convert_core_msys_to_w32_result. -func_convert_core_msys_to_w32 () -{ - $opt_debug - # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | - $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"` -} -#end: func_convert_core_msys_to_w32 - - -# func_convert_file_check ARG1 ARG2 -# Verify that ARG1 (a file name in $build format) was converted to $host -# format in ARG2. Otherwise, emit an error message, but continue (resetting -# func_to_host_file_result to ARG1). -func_convert_file_check () -{ - $opt_debug - if test -z "$2" && test -n "$1" ; then - func_error "Could not determine host file name corresponding to" - func_error " \`$1'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback: - func_to_host_file_result="$1" - fi -} -# end func_convert_file_check - - -# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH -# Verify that FROM_PATH (a path in $build format) was converted to $host -# format in TO_PATH. Otherwise, emit an error message, but continue, resetting -# func_to_host_file_result to a simplistic fallback value (see below). -func_convert_path_check () -{ - $opt_debug - if test -z "$4" && test -n "$3"; then - func_error "Could not determine the host path corresponding to" - func_error " \`$3'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback. This is a deliberately simplistic "conversion" and - # should not be "improved". See libtool.info. - if test "x$1" != "x$2"; then - lt_replace_pathsep_chars="s|$1|$2|g" - func_to_host_path_result=`echo "$3" | - $SED -e "$lt_replace_pathsep_chars"` - else - func_to_host_path_result="$3" - fi - fi -} -# end func_convert_path_check - - -# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG -# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT -# and appending REPL if ORIG matches BACKPAT. -func_convert_path_front_back_pathsep () -{ - $opt_debug - case $4 in - $1 ) func_to_host_path_result="$3$func_to_host_path_result" - ;; - esac - case $4 in - $2 ) func_append func_to_host_path_result "$3" - ;; - esac -} -# end func_convert_path_front_back_pathsep - - -################################################## -# $build to $host FILE NAME CONVERSION FUNCTIONS # -################################################## -# invoked via `$to_host_file_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# Result will be available in $func_to_host_file_result. - - -# func_to_host_file ARG -# Converts the file name ARG from $build format to $host format. Return result -# in func_to_host_file_result. -func_to_host_file () -{ - $opt_debug - $to_host_file_cmd "$1" -} -# end func_to_host_file - - -# func_to_tool_file ARG LAZY -# converts the file name ARG from $build format to toolchain format. Return -# result in func_to_tool_file_result. If the conversion in use is listed -# in (the comma separated) LAZY, no conversion takes place. -func_to_tool_file () -{ - $opt_debug - case ,$2, in - *,"$to_tool_file_cmd",*) - func_to_tool_file_result=$1 - ;; - *) - $to_tool_file_cmd "$1" - func_to_tool_file_result=$func_to_host_file_result - ;; - esac -} -# end func_to_tool_file - - -# func_convert_file_noop ARG -# Copy ARG to func_to_host_file_result. -func_convert_file_noop () -{ - func_to_host_file_result="$1" -} -# end func_convert_file_noop - - -# func_convert_file_msys_to_w32 ARG -# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_file_result. -func_convert_file_msys_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_to_host_file_result="$func_convert_core_msys_to_w32_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_w32 - - -# func_convert_file_cygwin_to_w32 ARG -# Convert file name ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_file_cygwin_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - # because $build is cygwin, we call "the" cygpath in $PATH; no need to use - # LT_CYGPATH in this case. - func_to_host_file_result=`cygpath -m "$1"` - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_cygwin_to_w32 - - -# func_convert_file_nix_to_w32 ARG -# Convert file name ARG from *nix to w32 format. Requires a wine environment -# and a working winepath. Returns result in func_to_host_file_result. -func_convert_file_nix_to_w32 () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_file_wine_to_w32 "$1" - func_to_host_file_result="$func_convert_core_file_wine_to_w32_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_w32 - - -# func_convert_file_msys_to_cygwin ARG -# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_file_msys_to_cygwin () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_cygpath -u "$func_convert_core_msys_to_w32_result" - func_to_host_file_result="$func_cygpath_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_cygwin - - -# func_convert_file_nix_to_cygwin ARG -# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed -# in a wine environment, working winepath, and LT_CYGPATH set. Returns result -# in func_to_host_file_result. -func_convert_file_nix_to_cygwin () -{ - $opt_debug - func_to_host_file_result="$1" - if test -n "$1"; then - # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. - func_convert_core_file_wine_to_w32 "$1" - func_cygpath -u "$func_convert_core_file_wine_to_w32_result" - func_to_host_file_result="$func_cygpath_result" - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_cygwin - - -############################################# -# $build to $host PATH CONVERSION FUNCTIONS # -############################################# -# invoked via `$to_host_path_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# The result will be available in $func_to_host_path_result. -# -# Path separators are also converted from $build format to $host format. If -# ARG begins or ends with a path separator character, it is preserved (but -# converted to $host format) on output. -# -# All path conversion functions are named using the following convention: -# file name conversion function : func_convert_file_X_to_Y () -# path conversion function : func_convert_path_X_to_Y () -# where, for any given $build/$host combination the 'X_to_Y' value is the -# same. If conversion functions are added for new $build/$host combinations, -# the two new functions must follow this pattern, or func_init_to_host_path_cmd -# will break. - - -# func_init_to_host_path_cmd -# Ensures that function "pointer" variable $to_host_path_cmd is set to the -# appropriate value, based on the value of $to_host_file_cmd. -to_host_path_cmd= -func_init_to_host_path_cmd () -{ - $opt_debug - if test -z "$to_host_path_cmd"; then - func_stripname 'func_convert_file_' '' "$to_host_file_cmd" - to_host_path_cmd="func_convert_path_${func_stripname_result}" - fi -} - - -# func_to_host_path ARG -# Converts the path ARG from $build format to $host format. Return result -# in func_to_host_path_result. -func_to_host_path () -{ - $opt_debug - func_init_to_host_path_cmd - $to_host_path_cmd "$1" -} -# end func_to_host_path - - -# func_convert_path_noop ARG -# Copy ARG to func_to_host_path_result. -func_convert_path_noop () -{ - func_to_host_path_result="$1" -} -# end func_convert_path_noop - - -# func_convert_path_msys_to_w32 ARG -# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_path_result. -func_convert_path_msys_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # Remove leading and trailing path separator characters from ARG. MSYS - # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; - # and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result="$func_convert_core_msys_to_w32_result" - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_msys_to_w32 - - -# func_convert_path_cygwin_to_w32 ARG -# Convert path ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_path_cygwin_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_cygwin_to_w32 - - -# func_convert_path_nix_to_w32 ARG -# Convert path ARG from *nix to w32 format. Requires a wine environment and -# a working winepath. Returns result in func_to_host_file_result. -func_convert_path_nix_to_w32 () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result="$func_convert_core_path_wine_to_w32_result" - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_nix_to_w32 - - -# func_convert_path_msys_to_cygwin ARG -# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_path_msys_to_cygwin () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_msys_to_w32_result" - func_to_host_path_result="$func_cygpath_result" - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_msys_to_cygwin - - -# func_convert_path_nix_to_cygwin ARG -# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a -# a wine environment, working winepath, and LT_CYGPATH set. Returns result in -# func_to_host_file_result. -func_convert_path_nix_to_cygwin () -{ - $opt_debug - func_to_host_path_result="$1" - if test -n "$1"; then - # Remove leading and trailing path separator characters from - # ARG. msys behavior is inconsistent here, cygpath turns them - # into '.;' and ';.', and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" - func_to_host_path_result="$func_cygpath_result" - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_nix_to_cygwin - - -# func_mode_compile arg... -func_mode_compile () -{ - $opt_debug - # Get the compilation command and the source file. - base_compile= - srcfile="$nonopt" # always keep a non-empty value in "srcfile" - suppress_opt=yes - suppress_output= - arg_mode=normal - libobj= - later= - pie_flag= - - for arg - do - case $arg_mode in - arg ) - # do not "continue". Instead, add this to base_compile - lastarg="$arg" - arg_mode=normal - ;; - - target ) - libobj="$arg" - arg_mode=normal - continue - ;; - - normal ) - # Accept any command-line options. - case $arg in - -o) - test -n "$libobj" && \ - func_fatal_error "you cannot specify \`-o' more than once" - arg_mode=target - continue - ;; - - -pie | -fpie | -fPIE) - func_append pie_flag " $arg" - continue - ;; - - -shared | -static | -prefer-pic | -prefer-non-pic) - func_append later " $arg" - continue - ;; - - -no-suppress) - suppress_opt=no - continue - ;; - - -Xcompiler) - arg_mode=arg # the next one goes into the "base_compile" arg list - continue # The current "srcfile" will either be retained or - ;; # replaced later. I would guess that would be a bug. - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - lastarg= - save_ifs="$IFS"; IFS=',' - for arg in $args; do - IFS="$save_ifs" - func_append_quoted lastarg "$arg" - done - IFS="$save_ifs" - func_stripname ' ' '' "$lastarg" - lastarg=$func_stripname_result - - # Add the arguments to base_compile. - func_append base_compile " $lastarg" - continue - ;; - - *) - # Accept the current argument as the source file. - # The previous "srcfile" becomes the current argument. - # - lastarg="$srcfile" - srcfile="$arg" - ;; - esac # case $arg - ;; - esac # case $arg_mode - - # Aesthetically quote the previous argument. - func_append_quoted base_compile "$lastarg" - done # for arg - - case $arg_mode in - arg) - func_fatal_error "you must specify an argument for -Xcompile" - ;; - target) - func_fatal_error "you must specify a target with \`-o'" - ;; - *) - # Get the name of the library object. - test -z "$libobj" && { - func_basename "$srcfile" - libobj="$func_basename_result" - } - ;; - esac - - # Recognize several different file suffixes. - # If the user specifies -o file.o, it is replaced with file.lo - case $libobj in - *.[cCFSifmso] | \ - *.ada | *.adb | *.ads | *.asm | \ - *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ - *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) - func_xform "$libobj" - libobj=$func_xform_result - ;; - esac - - case $libobj in - *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; - *) - func_fatal_error "cannot determine name of library object from \`$libobj'" - ;; - esac - - func_infer_tag $base_compile - - for arg in $later; do - case $arg in - -shared) - test "$build_libtool_libs" != yes && \ - func_fatal_configuration "can not build a shared library" - build_old_libs=no - continue - ;; - - -static) - build_libtool_libs=no - build_old_libs=yes - continue - ;; - - -prefer-pic) - pic_mode=yes - continue - ;; - - -prefer-non-pic) - pic_mode=no - continue - ;; - esac - done - - func_quote_for_eval "$libobj" - test "X$libobj" != "X$func_quote_for_eval_result" \ - && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ - && func_warning "libobj name \`$libobj' may not contain shell special characters." - func_dirname_and_basename "$obj" "/" "" - objname="$func_basename_result" - xdir="$func_dirname_result" - lobj=${xdir}$objdir/$objname - - test -z "$base_compile" && \ - func_fatal_help "you must specify a compilation command" - - # Delete any leftover library objects. - if test "$build_old_libs" = yes; then - removelist="$obj $lobj $libobj ${libobj}T" - else - removelist="$lobj $libobj ${libobj}T" - fi - - # On Cygwin there's no "real" PIC flag so we must build both object types - case $host_os in - cygwin* | mingw* | pw32* | os2* | cegcc*) - pic_mode=default - ;; - esac - if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then - # non-PIC code in shared libraries is not supported - pic_mode=default - fi - - # Calculate the filename of the output object if compiler does - # not support -o with -c - if test "$compiler_c_o" = no; then - output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext} - lockfile="$output_obj.lock" - else - output_obj= - need_locks=no - lockfile= - fi - - # Lock this critical section if it is needed - # We use this script file to make the link, it avoids creating a new file - if test "$need_locks" = yes; then - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - elif test "$need_locks" = warn; then - if test -f "$lockfile"; then - $ECHO "\ -*** ERROR, $lockfile exists and contains: -`cat $lockfile 2>/dev/null` - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support \`-c' and \`-o' together. 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If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - - # Just move the object if needed, then go on to compile the next one - if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then - func_show_eval '$MV "$output_obj" "$lobj"' \ - 'error=$?; $opt_dry_run || $RM $removelist; exit $error' - fi - - # Allow error messages only from the first compilation. - if test "$suppress_opt" = yes; then - suppress_output=' >/dev/null 2>&1' - fi - fi - - # Only build a position-dependent object if we build old libraries. - if test "$build_old_libs" = yes; then - if test "$pic_mode" != yes; then - # Don't build PIC code - command="$base_compile $qsrcfile$pie_flag" - else - command="$base_compile $qsrcfile $pic_flag" - fi - if test "$compiler_c_o" = yes; then - func_append command " -o $obj" - fi - - # Suppress compiler output if we already did a PIC compilation. - func_append command "$suppress_output" - func_show_eval_locale "$command" \ - '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' - - if test "$need_locks" = warn && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support \`-c' and \`-o' together. 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then - func_append libdirs " $opt" - - elif test -f "$opt"; then - if func_lalib_unsafe_p "$opt"; then - func_append libs " $opt" - else - func_warning "\`$opt' is not a valid libtool archive" - fi - - else - func_fatal_error "invalid argument \`$opt'" - fi - done - - if test -n "$libs"; then - if test -n "$lt_sysroot"; then - sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` - sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" - else - sysroot_cmd= - fi - - # Remove sysroot references - if $opt_dry_run; then - for lib in $libs; do - echo "removing references to $lt_sysroot and \`=' prefixes from $lib" - done - else - tmpdir=`func_mktempdir` - for lib in $libs; do - sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ - > $tmpdir/tmp-la - mv -f $tmpdir/tmp-la $lib - done - ${RM}r "$tmpdir" - fi - fi - - if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then - for libdir in $libdirs; do - if test -n "$finish_cmds"; then - # Do each command in the finish commands. - func_execute_cmds "$finish_cmds" 'admincmds="$admincmds -'"$cmd"'"' - fi - if test -n "$finish_eval"; then - # Do the single finish_eval. - eval cmds=\"$finish_eval\" - $opt_dry_run || eval "$cmds" || func_append admincmds " - $cmds" - fi - done - fi - - # Exit here if they wanted silent mode. - $opt_silent && exit $EXIT_SUCCESS - - if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then - echo "----------------------------------------------------------------------" - echo "Libraries have been installed in:" - for libdir in $libdirs; do - $ECHO " $libdir" - done - echo - echo "If you ever happen to want to link against installed libraries" - echo "in a given directory, LIBDIR, you must either use libtool, and" - echo "specify the full pathname of the library, or use the \`-LLIBDIR'" - echo "flag during linking and do at least one of the following:" - if test -n "$shlibpath_var"; then - echo " - add LIBDIR to the \`$shlibpath_var' environment variable" - echo " during execution" - fi - if test -n "$runpath_var"; then - echo " - add LIBDIR to the \`$runpath_var' environment variable" - echo " during linking" - fi - if test -n "$hardcode_libdir_flag_spec"; then - libdir=LIBDIR - eval flag=\"$hardcode_libdir_flag_spec\" - - $ECHO " - use the \`$flag' linker flag" - fi - if test -n "$admincmds"; then - $ECHO " - have your system administrator run these commands:$admincmds" - fi - if test -f /etc/ld.so.conf; then - echo " - have your system administrator add LIBDIR to \`/etc/ld.so.conf'" - fi - echo - - echo "See any operating system documentation about shared libraries for" - case $host in - solaris2.[6789]|solaris2.1[0-9]) - echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" - echo "pages." - ;; - *) - echo "more information, such as the ld(1) and ld.so(8) manual pages." - ;; - esac - echo "----------------------------------------------------------------------" - fi - exit $EXIT_SUCCESS -} - -test "$opt_mode" = finish && func_mode_finish ${1+"$@"} - - -# func_mode_install arg... -func_mode_install () -{ - $opt_debug - # There may be an optional sh(1) argument at the beginning of - # install_prog (especially on Windows NT). - if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh || - # Allow the use of GNU shtool's install command. - case $nonopt in *shtool*) :;; *) false;; esac; then - # Aesthetically quote it. - func_quote_for_eval "$nonopt" - install_prog="$func_quote_for_eval_result " - arg=$1 - shift - else - install_prog= - arg=$nonopt - fi - - # The real first argument should be the name of the installation program. - # Aesthetically quote it. - func_quote_for_eval "$arg" - func_append install_prog "$func_quote_for_eval_result" - install_shared_prog=$install_prog - case " $install_prog " in - *[\\\ /]cp\ *) install_cp=: ;; - *) install_cp=false ;; - esac - - # We need to accept at least all the BSD install flags. - dest= - files= - opts= - prev= - install_type= - isdir=no - stripme= - no_mode=: - for arg - do - arg2= - if test -n "$dest"; then - func_append files " $dest" - dest=$arg - continue - fi - - case $arg in - -d) isdir=yes ;; - -f) - if $install_cp; then :; else - prev=$arg - fi - ;; - -g | -m | -o) - prev=$arg - ;; - -s) - stripme=" -s" - continue - ;; - -*) - ;; - *) - # If the previous option needed an argument, then skip it. - if test -n "$prev"; then - if test "x$prev" = x-m && test -n "$install_override_mode"; then - arg2=$install_override_mode - no_mode=false - fi - prev= - else - dest=$arg - continue - fi - ;; - esac - - # Aesthetically quote the argument. - func_quote_for_eval "$arg" - func_append install_prog " $func_quote_for_eval_result" - if test -n "$arg2"; then - func_quote_for_eval "$arg2" - fi - func_append install_shared_prog " $func_quote_for_eval_result" - done - - test -z "$install_prog" && \ - func_fatal_help "you must specify an install program" - - test -n "$prev" && \ - func_fatal_help "the \`$prev' option requires an argument" - - if test -n "$install_override_mode" && $no_mode; then - if $install_cp; then :; else - func_quote_for_eval "$install_override_mode" - func_append install_shared_prog " -m $func_quote_for_eval_result" - fi - fi - - if test -z "$files"; then - if test -z "$dest"; then - func_fatal_help "no file or destination specified" - else - func_fatal_help "you must specify a destination" - fi - fi - - # Strip any trailing slash from the destination. - func_stripname '' '/' "$dest" - dest=$func_stripname_result - - # Check to see that the destination is a directory. - test -d "$dest" && isdir=yes - if test "$isdir" = yes; then - destdir="$dest" - destname= - else - func_dirname_and_basename "$dest" "" "." - destdir="$func_dirname_result" - destname="$func_basename_result" - - # Not a directory, so check to see that there is only one file specified. - set dummy $files; shift - test "$#" -gt 1 && \ - func_fatal_help "\`$dest' is not a directory" - fi - case $destdir in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - for file in $files; do - case $file in - *.lo) ;; - *) - func_fatal_help "\`$destdir' must be an absolute directory name" - ;; - esac - done - ;; - esac - - # This variable tells wrapper scripts just to set variables rather - # than running their programs. - libtool_install_magic="$magic" - - staticlibs= - future_libdirs= - current_libdirs= - for file in $files; do - - # Do each installation. - case $file in - *.$libext) - # Do the static libraries later. - func_append staticlibs " $file" - ;; - - *.la) - func_resolve_sysroot "$file" - file=$func_resolve_sysroot_result - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$file" \ - || func_fatal_help "\`$file' is not a valid libtool archive" - - library_names= - old_library= - relink_command= - func_source "$file" - - # Add the libdir to current_libdirs if it is the destination. - if test "X$destdir" = "X$libdir"; then - case "$current_libdirs " in - *" $libdir "*) ;; - *) func_append current_libdirs " $libdir" ;; - esac - else - # Note the libdir as a future libdir. - case "$future_libdirs " in - *" $libdir "*) ;; - *) func_append future_libdirs " $libdir" ;; - esac - fi - - func_dirname "$file" "/" "" - dir="$func_dirname_result" - func_append dir "$objdir" - - if test -n "$relink_command"; then - # Determine the prefix the user has applied to our future dir. - inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` - - # Don't allow the user to place us outside of our expected - # location b/c this prevents finding dependent libraries that - # are installed to the same prefix. - # At present, this check doesn't affect windows .dll's that - # are installed into $libdir/../bin (currently, that works fine) - # but it's something to keep an eye on. - test "$inst_prefix_dir" = "$destdir" && \ - func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir" - - if test -n "$inst_prefix_dir"; then - # Stick the inst_prefix_dir data into the link command. - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` - else - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` - fi - - func_warning "relinking \`$file'" - func_show_eval "$relink_command" \ - 'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"' - fi - - # See the names of the shared library. - set dummy $library_names; shift - if test -n "$1"; then - realname="$1" - shift - - srcname="$realname" - test -n "$relink_command" && srcname="$realname"T - - # Install the shared library and build the symlinks. - func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ - 'exit $?' - tstripme="$stripme" - case $host_os in - cygwin* | mingw* | pw32* | cegcc*) - case $realname in - *.dll.a) - tstripme="" - ;; - esac - ;; - esac - if test -n "$tstripme" && test -n "$striplib"; then - func_show_eval "$striplib $destdir/$realname" 'exit $?' - fi - - if test "$#" -gt 0; then - # Delete the old symlinks, and create new ones. - # Try `ln -sf' first, because the `ln' binary might depend on - # the symlink we replace! Solaris /bin/ln does not understand -f, - # so we also need to try rm && ln -s. - for linkname - do - test "$linkname" != "$realname" \ - && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" - done - fi - - # Do each command in the postinstall commands. - lib="$destdir/$realname" - func_execute_cmds "$postinstall_cmds" 'exit $?' - fi - - # Install the pseudo-library for information purposes. - func_basename "$file" - name="$func_basename_result" - instname="$dir/$name"i - func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' - - # Maybe install the static library, too. - test -n "$old_library" && func_append staticlibs " $dir/$old_library" - ;; - - *.lo) - # Install (i.e. copy) a libtool object. - - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile="$destdir/$destname" - else - func_basename "$file" - destfile="$func_basename_result" - destfile="$destdir/$destfile" - fi - - # Deduce the name of the destination old-style object file. - case $destfile in - *.lo) - func_lo2o "$destfile" - staticdest=$func_lo2o_result - ;; - *.$objext) - staticdest="$destfile" - destfile= - ;; - *) - func_fatal_help "cannot copy a libtool object to \`$destfile'" - ;; - esac - - # Install the libtool object if requested. - test -n "$destfile" && \ - func_show_eval "$install_prog $file $destfile" 'exit $?' - - # Install the old object if enabled. - if test "$build_old_libs" = yes; then - # Deduce the name of the old-style object file. - func_lo2o "$file" - staticobj=$func_lo2o_result - func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' - fi - exit $EXIT_SUCCESS - ;; - - *) - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile="$destdir/$destname" - else - func_basename "$file" - destfile="$func_basename_result" - destfile="$destdir/$destfile" - fi - - # If the file is missing, and there is a .exe on the end, strip it - # because it is most likely a libtool script we actually want to - # install - stripped_ext="" - case $file in - *.exe) - if test ! -f "$file"; then - func_stripname '' '.exe' "$file" - file=$func_stripname_result - stripped_ext=".exe" - fi - ;; - esac - - # Do a test to see if this is really a libtool program. - case $host in - *cygwin* | *mingw*) - if func_ltwrapper_executable_p "$file"; then - func_ltwrapper_scriptname "$file" - wrapper=$func_ltwrapper_scriptname_result - else - func_stripname '' '.exe' "$file" - wrapper=$func_stripname_result - fi - ;; - *) - wrapper=$file - ;; - esac - if func_ltwrapper_script_p "$wrapper"; then - notinst_deplibs= - relink_command= - - func_source "$wrapper" - - # Check the variables that should have been set. - test -z "$generated_by_libtool_version" && \ - func_fatal_error "invalid libtool wrapper script \`$wrapper'" - - finalize=yes - for lib in $notinst_deplibs; do - # Check to see that each library is installed. - libdir= - if test -f "$lib"; then - func_source "$lib" - fi - libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test - if test -n "$libdir" && test ! -f "$libfile"; then - func_warning "\`$lib' has not been installed in \`$libdir'" - finalize=no - fi - done - - relink_command= - func_source "$wrapper" - - outputname= - if test "$fast_install" = no && test -n "$relink_command"; then - $opt_dry_run || { - if test "$finalize" = yes; then - tmpdir=`func_mktempdir` - func_basename "$file$stripped_ext" - file="$func_basename_result" - outputname="$tmpdir/$file" - # Replace the output file specification. - relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` - - $opt_silent || { - func_quote_for_expand "$relink_command" - eval "func_echo $func_quote_for_expand_result" - } - if eval "$relink_command"; then : - else - func_error "error: relink \`$file' with the above command before installing it" - $opt_dry_run || ${RM}r "$tmpdir" - continue - fi - file="$outputname" - else - func_warning "cannot relink \`$file'" - fi - } - else - # Install the binary that we compiled earlier. - file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` - fi - fi - - # remove .exe since cygwin /usr/bin/install will append another - # one anyway - case $install_prog,$host in - */usr/bin/install*,*cygwin*) - case $file:$destfile in - *.exe:*.exe) - # this is ok - ;; - *.exe:*) - destfile=$destfile.exe - ;; - *:*.exe) - func_stripname '' '.exe' "$destfile" - destfile=$func_stripname_result - ;; - esac - ;; - esac - func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' - $opt_dry_run || if test -n "$outputname"; then - ${RM}r "$tmpdir" - fi - ;; - esac - done - - for file in $staticlibs; do - func_basename "$file" - name="$func_basename_result" - - # Set up the ranlib parameters. - oldlib="$destdir/$name" - func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 - tool_oldlib=$func_to_tool_file_result - - func_show_eval "$install_prog \$file \$oldlib" 'exit $?' - - if test -n "$stripme" && test -n "$old_striplib"; then - func_show_eval "$old_striplib $tool_oldlib" 'exit $?' - fi - - # Do each command in the postinstall commands. - func_execute_cmds "$old_postinstall_cmds" 'exit $?' - done - - test -n "$future_libdirs" && \ - func_warning "remember to run \`$progname --finish$future_libdirs'" - - if test -n "$current_libdirs"; then - # Maybe just do a dry run. - $opt_dry_run && current_libdirs=" -n$current_libdirs" - exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs' - else - exit $EXIT_SUCCESS - fi -} - -test "$opt_mode" = install && func_mode_install ${1+"$@"} - - -# func_generate_dlsyms outputname originator pic_p -# Extract symbols from dlprefiles and create ${outputname}S.o with -# a dlpreopen symbol table. -func_generate_dlsyms () -{ - $opt_debug - my_outputname="$1" - my_originator="$2" - my_pic_p="${3-no}" - my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'` - my_dlsyms= - - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - if test -n "$NM" && test -n "$global_symbol_pipe"; then - my_dlsyms="${my_outputname}S.c" - else - func_error "not configured to extract global symbols from dlpreopened files" - fi - fi - - if test -n "$my_dlsyms"; then - case $my_dlsyms in - "") ;; - *.c) - # Discover the nlist of each of the dlfiles. - nlist="$output_objdir/${my_outputname}.nm" - - func_show_eval "$RM $nlist ${nlist}S ${nlist}T" - - # Parse the name list into a source file. - func_verbose "creating $output_objdir/$my_dlsyms" - - $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ -/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */ -/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */ - -#ifdef __cplusplus -extern \"C\" { -#endif - -#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) -#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" -#endif - -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) -/* DATA imports from DLLs on WIN32 con't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT_DLSYM_CONST -#elif defined(__osf__) -/* This system does not cope well with relocations in const data. */ -# define LT_DLSYM_CONST -#else -# define LT_DLSYM_CONST const -#endif - -/* External symbol declarations for the compiler. */\ -" - - if test "$dlself" = yes; then - func_verbose "generating symbol list for \`$output'" - - $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" - - # Add our own program objects to the symbol list. - progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` - for progfile in $progfiles; do - func_to_tool_file "$progfile" func_convert_file_msys_to_w32 - func_verbose "extracting global C symbols from \`$func_to_tool_file_result'" - $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" - done - - if test -n "$exclude_expsyms"; then - $opt_dry_run || { - eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - if test -n "$export_symbols_regex"; then - $opt_dry_run || { - eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - export_symbols="$output_objdir/$outputname.exp" - $opt_dry_run || { - $RM $export_symbols - eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' - ;; - esac - } - else - $opt_dry_run || { - eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' - eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' - ;; - esac - } - fi - fi - - for dlprefile in $dlprefiles; do - func_verbose "extracting global C symbols from \`$dlprefile'" - func_basename "$dlprefile" - name="$func_basename_result" - case $host in - *cygwin* | *mingw* | *cegcc* ) - # if an import library, we need to obtain dlname - if func_win32_import_lib_p "$dlprefile"; then - func_tr_sh "$dlprefile" - eval "curr_lafile=\$libfile_$func_tr_sh_result" - dlprefile_dlbasename="" - if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then - # Use subshell, to avoid clobbering current variable values - dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` - if test -n "$dlprefile_dlname" ; then - func_basename "$dlprefile_dlname" - dlprefile_dlbasename="$func_basename_result" - else - # no lafile. user explicitly requested -dlpreopen . - $sharedlib_from_linklib_cmd "$dlprefile" - dlprefile_dlbasename=$sharedlib_from_linklib_result - fi - fi - $opt_dry_run || { - if test -n "$dlprefile_dlbasename" ; then - eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' - else - func_warning "Could not compute DLL name from $name" - eval '$ECHO ": $name " >> "$nlist"' - fi - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | - $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" - } - else # not an import lib - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - fi - ;; - *) - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - ;; - esac - done - - $opt_dry_run || { - # Make sure we have at least an empty file. - test -f "$nlist" || : > "$nlist" - - if test -n "$exclude_expsyms"; then - $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T - $MV "$nlist"T "$nlist" - fi - - # Try sorting and uniquifying the output. - if $GREP -v "^: " < "$nlist" | - if sort -k 3 /dev/null 2>&1; then - sort -k 3 - else - sort +2 - fi | - uniq > "$nlist"S; then - : - else - $GREP -v "^: " < "$nlist" > "$nlist"S - fi - - if test -f "$nlist"S; then - eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' - else - echo '/* NONE */' >> "$output_objdir/$my_dlsyms" - fi - - echo >> "$output_objdir/$my_dlsyms" "\ - -/* The mapping between symbol names and symbols. */ -typedef struct { - const char *name; - void *address; -} lt_dlsymlist; -extern LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[]; -LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[] = -{\ - { \"$my_originator\", (void *) 0 }," - - case $need_lib_prefix in - no) - eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - *) - eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - esac - echo >> "$output_objdir/$my_dlsyms" "\ - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt_${my_prefix}_LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif\ -" - } # !$opt_dry_run - - pic_flag_for_symtable= - case "$compile_command " in - *" -static "*) ;; - *) - case $host in - # compiling the symbol table file with pic_flag works around - # a FreeBSD bug that causes programs to crash when -lm is - # linked before any other PIC object. But we must not use - # pic_flag when linking with -static. The problem exists in - # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. - *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) - pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; - *-*-hpux*) - pic_flag_for_symtable=" $pic_flag" ;; - *) - if test "X$my_pic_p" != Xno; then - pic_flag_for_symtable=" $pic_flag" - fi - ;; - esac - ;; - esac - symtab_cflags= - for arg in $LTCFLAGS; do - case $arg in - -pie | -fpie | -fPIE) ;; - *) func_append symtab_cflags " $arg" ;; - esac - done - - # Now compile the dynamic symbol file. - func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' - - # Clean up the generated files. - func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"' - - # Transform the symbol file into the correct name. - symfileobj="$output_objdir/${my_outputname}S.$objext" - case $host in - *cygwin* | *mingw* | *cegcc* ) - if test -f "$output_objdir/$my_outputname.def"; then - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - else - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - fi - ;; - *) - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - ;; - esac - ;; - *) - func_fatal_error "unknown suffix for \`$my_dlsyms'" - ;; - esac - else - # We keep going just in case the user didn't refer to - # lt_preloaded_symbols. The linker will fail if global_symbol_pipe - # really was required. - - # Nullify the symbol file. - compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` - fi -} - -# func_win32_libid arg -# return the library type of file 'arg' -# -# Need a lot of goo to handle *both* DLLs and import libs -# Has to be a shell function in order to 'eat' the argument -# that is supplied when $file_magic_command is called. -# Despite the name, also deal with 64 bit binaries. -func_win32_libid () -{ - $opt_debug - win32_libid_type="unknown" - win32_fileres=`file -L $1 2>/dev/null` - case $win32_fileres in - *ar\ archive\ import\ library*) # definitely import - win32_libid_type="x86 archive import" - ;; - *ar\ archive*) # could be an import, or static - # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. - if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | - $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then - func_to_tool_file "$1" func_convert_file_msys_to_w32 - win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | - $SED -n -e ' - 1,100{ - / I /{ - s,.*,import, - p - q - } - }'` - case $win32_nmres in - import*) win32_libid_type="x86 archive import";; - *) win32_libid_type="x86 archive static";; - esac - fi - ;; - *DLL*) - win32_libid_type="x86 DLL" - ;; - *executable*) # but shell scripts are "executable" too... - case $win32_fileres in - *MS\ Windows\ PE\ Intel*) - win32_libid_type="x86 DLL" - ;; - esac - ;; - esac - $ECHO "$win32_libid_type" -} - -# func_cygming_dll_for_implib ARG -# -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib () -{ - $opt_debug - sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` -} - -# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs -# -# The is the core of a fallback implementation of a -# platform-specific function to extract the name of the -# DLL associated with the specified import library LIBNAME. -# -# SECTION_NAME is either .idata$6 or .idata$7, depending -# on the platform and compiler that created the implib. -# -# Echos the name of the DLL associated with the -# specified import library. -func_cygming_dll_for_implib_fallback_core () -{ - $opt_debug - match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` - $OBJDUMP -s --section "$1" "$2" 2>/dev/null | - $SED '/^Contents of section '"$match_literal"':/{ - # Place marker at beginning of archive member dllname section - s/.*/====MARK====/ - p - d - } - # These lines can sometimes be longer than 43 characters, but - # are always uninteresting - /:[ ]*file format pe[i]\{,1\}-/d - /^In archive [^:]*:/d - # Ensure marker is printed - /^====MARK====/p - # Remove all lines with less than 43 characters - /^.\{43\}/!d - # From remaining lines, remove first 43 characters - s/^.\{43\}//' | - $SED -n ' - # Join marker and all lines until next marker into a single line - /^====MARK====/ b para - H - $ b para - b - :para - x - s/\n//g - # Remove the marker - s/^====MARK====// - # Remove trailing dots and whitespace - s/[\. \t]*$// - # Print - /./p' | - # we now have a list, one entry per line, of the stringified - # contents of the appropriate section of all members of the - # archive which possess that section. Heuristic: eliminate - # all those which have a first or second character that is - # a '.' (that is, objdump's representation of an unprintable - # character.) This should work for all archives with less than - # 0x302f exports -- but will fail for DLLs whose name actually - # begins with a literal '.' or a single character followed by - # a '.'. - # - # Of those that remain, print the first one. - $SED -e '/^\./d;/^.\./d;q' -} - -# func_cygming_gnu_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is a GNU/binutils-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_gnu_implib_p () -{ - $opt_debug - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` - test -n "$func_cygming_gnu_implib_tmp" -} - -# func_cygming_ms_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is an MS-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_ms_implib_p () -{ - $opt_debug - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` - test -n "$func_cygming_ms_implib_tmp" -} - -# func_cygming_dll_for_implib_fallback ARG -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# -# This fallback implementation is for use when $DLLTOOL -# does not support the --identify-strict option. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib_fallback () -{ - $opt_debug - if func_cygming_gnu_implib_p "$1" ; then - # binutils import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` - elif func_cygming_ms_implib_p "$1" ; then - # ms-generated import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` - else - # unknown - sharedlib_from_linklib_result="" - fi -} - - -# func_extract_an_archive dir oldlib -func_extract_an_archive () -{ - $opt_debug - f_ex_an_ar_dir="$1"; shift - f_ex_an_ar_oldlib="$1" - if test "$lock_old_archive_extraction" = yes; then - lockfile=$f_ex_an_ar_oldlib.lock - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - fi - func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ - 'stat=$?; rm -f "$lockfile"; exit $stat' - if test "$lock_old_archive_extraction" = yes; then - $opt_dry_run || rm -f "$lockfile" - fi - if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then - : - else - func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" - fi -} - - -# func_extract_archives gentop oldlib ... -func_extract_archives () -{ - $opt_debug - my_gentop="$1"; shift - my_oldlibs=${1+"$@"} - my_oldobjs="" - my_xlib="" - my_xabs="" - my_xdir="" - - for my_xlib in $my_oldlibs; do - # Extract the objects. - case $my_xlib in - [\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;; - *) my_xabs=`pwd`"/$my_xlib" ;; - esac - func_basename "$my_xlib" - my_xlib="$func_basename_result" - my_xlib_u=$my_xlib - while :; do - case " $extracted_archives " in - *" $my_xlib_u "*) - func_arith $extracted_serial + 1 - extracted_serial=$func_arith_result - my_xlib_u=lt$extracted_serial-$my_xlib ;; - *) break ;; - esac - done - extracted_archives="$extracted_archives $my_xlib_u" - my_xdir="$my_gentop/$my_xlib_u" - - func_mkdir_p "$my_xdir" - - case $host in - *-darwin*) - func_verbose "Extracting $my_xabs" - # Do not bother doing anything if just a dry run - $opt_dry_run || { - darwin_orig_dir=`pwd` - cd $my_xdir || exit $? - darwin_archive=$my_xabs - darwin_curdir=`pwd` - darwin_base_archive=`basename "$darwin_archive"` - darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` - if test -n "$darwin_arches"; then - darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` - darwin_arch= - func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" - for darwin_arch in $darwin_arches ; do - func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}" - $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}" - cd "unfat-$$/${darwin_base_archive}-${darwin_arch}" - func_extract_an_archive "`pwd`" "${darwin_base_archive}" - cd "$darwin_curdir" - $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" - done # $darwin_arches - ## Okay now we've a bunch of thin objects, gotta fatten them up :) - darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u` - darwin_file= - darwin_files= - for darwin_file in $darwin_filelist; do - darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` - $LIPO -create -output "$darwin_file" $darwin_files - done # $darwin_filelist - $RM -rf unfat-$$ - cd "$darwin_orig_dir" - else - cd $darwin_orig_dir - func_extract_an_archive "$my_xdir" "$my_xabs" - fi # $darwin_arches - } # !$opt_dry_run - ;; - *) - func_extract_an_archive "$my_xdir" "$my_xabs" - ;; - esac - my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` - done - - func_extract_archives_result="$my_oldobjs" -} - - -# func_emit_wrapper [arg=no] -# -# Emit a libtool wrapper script on stdout. -# Don't directly open a file because we may want to -# incorporate the script contents within a cygwin/mingw -# wrapper executable. Must ONLY be called from within -# func_mode_link because it depends on a number of variables -# set therein. -# -# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR -# variable will take. If 'yes', then the emitted script -# will assume that the directory in which it is stored is -# the $objdir directory. This is a cygwin/mingw-specific -# behavior. -func_emit_wrapper () -{ - func_emit_wrapper_arg1=${1-no} - - $ECHO "\ -#! $SHELL - -# $output - temporary wrapper script for $objdir/$outputname -# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION -# -# The $output program cannot be directly executed until all the libtool -# libraries that it depends on are installed. -# -# This wrapper script should never be moved out of the build directory. -# If it is, it will not operate correctly. - -# Sed substitution that helps us do robust quoting. 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There is, deliberately, no --lt-help. -# -# The first argument to this parsing function should be the -# script's $0 value, followed by "$@". -lt_option_debug= -func_parse_lt_options () -{ - lt_script_arg0=\$0 - shift - for lt_opt - do - case \"\$lt_opt\" in - --lt-debug) lt_option_debug=1 ;; - --lt-dump-script) - lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` - test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. - lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` - cat \"\$lt_dump_D/\$lt_dump_F\" - exit 0 - ;; - --lt-*) - \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 - exit 1 - ;; - esac - done - - # Print the debug banner immediately: - if test -n \"\$lt_option_debug\"; then - echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2 - fi -} - -# Used when --lt-debug. Prints its arguments to stdout -# (redirection is the responsibility of the caller) -func_lt_dump_args () -{ - lt_dump_args_N=1; - for lt_arg - do - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\" - lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` - done -} - -# Core function for launching the target application -func_exec_program_core () -{ -" - case $host in - # Backslashes separate directories on plain windows - *-*-mingw | *-*-os2* | *-cegcc*) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} -" - ;; - - *) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir/\$program\" \${1+\"\$@\"} -" - ;; - esac - $ECHO "\ - \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 - exit 1 -} - -# A function to encapsulate launching the target application -# Strips options in the --lt-* namespace from \$@ and -# launches target application with the remaining arguments. -func_exec_program () -{ - case \" \$* \" in - *\\ --lt-*) - for lt_wr_arg - do - case \$lt_wr_arg in - --lt-*) ;; - *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; - esac - shift - done ;; - esac - func_exec_program_core \${1+\"\$@\"} -} - - # Parse options - func_parse_lt_options \"\$0\" \${1+\"\$@\"} - - # Find the directory that this script lives in. - thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` - test \"x\$thisdir\" = \"x\$file\" && thisdir=. - - # Follow symbolic links until we get to the real thisdir. - file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` - while test -n \"\$file\"; do - destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` - - # If there was a directory component, then change thisdir. - if test \"x\$destdir\" != \"x\$file\"; then - case \"\$destdir\" in - [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; - *) thisdir=\"\$thisdir/\$destdir\" ;; - esac - fi - - file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` - file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` - done - - # Usually 'no', except on cygwin/mingw when embedded into - # the cwrapper. - WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 - if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then - # special case for '.' - if test \"\$thisdir\" = \".\"; then - thisdir=\`pwd\` - fi - # remove .libs from thisdir - case \"\$thisdir\" in - *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; - $objdir ) thisdir=. ;; - esac - fi - - # Try to get the absolute directory name. - absdir=\`cd \"\$thisdir\" && pwd\` - test -n \"\$absdir\" && thisdir=\"\$absdir\" -" - - if test "$fast_install" = yes; then - $ECHO "\ - program=lt-'$outputname'$exeext - progdir=\"\$thisdir/$objdir\" - - if test ! -f \"\$progdir/\$program\" || - { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\ - test \"X\$file\" != \"X\$progdir/\$program\"; }; then - - file=\"\$\$-\$program\" - - if test ! -d \"\$progdir\"; then - $MKDIR \"\$progdir\" - else - $RM \"\$progdir/\$file\" - fi" - - $ECHO "\ - - # relink executable if necessary - if test -n \"\$relink_command\"; then - if relink_command_output=\`eval \$relink_command 2>&1\`; then : - else - $ECHO \"\$relink_command_output\" >&2 - $RM \"\$progdir/\$file\" - exit 1 - fi - fi - - $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || - { $RM \"\$progdir/\$program\"; - $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } - $RM \"\$progdir/\$file\" - fi" - else - $ECHO "\ - program='$outputname' - progdir=\"\$thisdir/$objdir\" -" - fi - - $ECHO "\ - - if test -f \"\$progdir/\$program\"; then" - - # fixup the dll searchpath if we need to. - # - # Fix the DLL searchpath if we need to. Do this before prepending - # to shlibpath, because on Windows, both are PATH and uninstalled - # libraries must come first. - if test -n "$dllsearchpath"; then - $ECHO "\ - # Add the dll search path components to the executable PATH - PATH=$dllsearchpath:\$PATH -" - fi - - # Export our shlibpath_var if we have one. - if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then - $ECHO "\ - # Add our own library path to $shlibpath_var - $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" - - # Some systems cannot cope with colon-terminated $shlibpath_var - # The second colon is a workaround for a bug in BeOS R4 sed - $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` - - export $shlibpath_var -" - fi - - $ECHO "\ - if test \"\$libtool_execute_magic\" != \"$magic\"; then - # Run the actual program with our arguments. - func_exec_program \${1+\"\$@\"} - fi - else - # The program doesn't exist. - \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2 - \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 - \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 - exit 1 - fi -fi\ -" -} - - -# func_emit_cwrapperexe_src -# emit the source code for a wrapper executable on stdout -# Must ONLY be called from within func_mode_link because -# it depends on a number of variable set therein. -func_emit_cwrapperexe_src () -{ - cat < -#include -#ifdef _MSC_VER -# include -# include -# include -#else -# include -# include -# ifdef __CYGWIN__ -# include -# endif -#endif -#include -#include -#include -#include -#include -#include -#include -#include - -/* declarations of non-ANSI functions */ -#if defined(__MINGW32__) -# ifdef __STRICT_ANSI__ -int _putenv (const char *); -# endif -#elif defined(__CYGWIN__) -# ifdef __STRICT_ANSI__ -char *realpath (const char *, char *); -int putenv (char *); -int setenv (const char *, const char *, int); -# endif -/* #elif defined (other platforms) ... */ -#endif - -/* portability defines, excluding path handling macros */ -#if defined(_MSC_VER) -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -# define S_IXUSR _S_IEXEC -# ifndef _INTPTR_T_DEFINED -# define _INTPTR_T_DEFINED -# define intptr_t int -# endif -#elif defined(__MINGW32__) -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -#elif defined(__CYGWIN__) -# define HAVE_SETENV -# define FOPEN_WB "wb" -/* #elif defined (other platforms) ... */ -#endif - -#if defined(PATH_MAX) -# define LT_PATHMAX PATH_MAX -#elif defined(MAXPATHLEN) -# define LT_PATHMAX MAXPATHLEN -#else -# define LT_PATHMAX 1024 -#endif - -#ifndef S_IXOTH -# define S_IXOTH 0 -#endif -#ifndef S_IXGRP -# define S_IXGRP 0 -#endif - -/* path handling portability macros */ -#ifndef DIR_SEPARATOR -# define DIR_SEPARATOR '/' -# define PATH_SEPARATOR ':' -#endif - -#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \ - defined (__OS2__) -# define HAVE_DOS_BASED_FILE_SYSTEM -# define FOPEN_WB "wb" -# ifndef DIR_SEPARATOR_2 -# define DIR_SEPARATOR_2 '\\' -# endif -# ifndef PATH_SEPARATOR_2 -# define PATH_SEPARATOR_2 ';' -# endif -#endif - -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(ch) \ - (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -#ifndef PATH_SEPARATOR_2 -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) -#else /* PATH_SEPARATOR_2 */ -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) -#endif /* PATH_SEPARATOR_2 */ - -#ifndef FOPEN_WB -# define FOPEN_WB "w" -#endif -#ifndef _O_BINARY -# define _O_BINARY 0 -#endif - -#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) -#define XFREE(stale) do { \ - if (stale) { free ((void *) stale); stale = 0; } \ -} while (0) - -#if defined(LT_DEBUGWRAPPER) -static int lt_debug = 1; -#else -static int lt_debug = 0; -#endif - -const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ - -void *xmalloc (size_t num); -char *xstrdup (const char *string); -const char *base_name (const char *name); -char *find_executable (const char *wrapper); -char *chase_symlinks (const char *pathspec); -int make_executable (const char *path); -int check_executable (const char *path); -char *strendzap (char *str, const char *pat); -void lt_debugprintf (const char *file, int line, const char *fmt, ...); -void lt_fatal (const char *file, int line, const char *message, ...); -static const char *nonnull (const char *s); -static const char *nonempty (const char *s); -void lt_setenv (const char *name, const char *value); -char *lt_extend_str (const char *orig_value, const char *add, int to_end); -void lt_update_exe_path (const char *name, const char *value); -void lt_update_lib_path (const char *name, const char *value); -char **prepare_spawn (char **argv); -void lt_dump_script (FILE *f); -EOF - - cat <= 0) - && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) - return 1; - else - return 0; -} - -int -make_executable (const char *path) -{ - int rval = 0; - struct stat st; - - lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", - nonempty (path)); - if ((!path) || (!*path)) - return 0; - - if (stat (path, &st) >= 0) - { - rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); - } - return rval; -} - -/* Searches for the full path of the wrapper. Returns - newly allocated full path name if found, NULL otherwise - Does not chase symlinks, even on platforms that support them. -*/ -char * -find_executable (const char *wrapper) -{ - int has_slash = 0; - const char *p; - const char *p_next; - /* static buffer for getcwd */ - char tmp[LT_PATHMAX + 1]; - int tmp_len; - char *concat_name; - - lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", - nonempty (wrapper)); - - if ((wrapper == NULL) || (*wrapper == '\0')) - return NULL; - - /* Absolute path? */ -#if defined (HAVE_DOS_BASED_FILE_SYSTEM) - if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - else - { -#endif - if (IS_DIR_SEPARATOR (wrapper[0])) - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } -#if defined (HAVE_DOS_BASED_FILE_SYSTEM) - } -#endif - - for (p = wrapper; *p; p++) - if (*p == '/') - { - has_slash = 1; - break; - } - if (!has_slash) - { - /* no slashes; search PATH */ - const char *path = getenv ("PATH"); - if (path != NULL) - { - for (p = path; *p; p = p_next) - { - const char *q; - size_t p_len; - for (q = p; *q; q++) - if (IS_PATH_SEPARATOR (*q)) - break; - p_len = q - p; - p_next = (*q == '\0' ? q : q + 1); - if (p_len == 0) - { - /* empty path: current directory */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = - XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - } - else - { - concat_name = - XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, p, p_len); - concat_name[p_len] = '/'; - strcpy (concat_name + p_len + 1, wrapper); - } - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - } - /* not found in PATH; assume curdir */ - } - /* Relative path | not found in path: prepend cwd */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - return NULL; -} - -char * -chase_symlinks (const char *pathspec) -{ -#ifndef S_ISLNK - return xstrdup (pathspec); -#else - char buf[LT_PATHMAX]; - struct stat s; - char *tmp_pathspec = xstrdup (pathspec); - char *p; - int has_symlinks = 0; - while (strlen (tmp_pathspec) && !has_symlinks) - { - lt_debugprintf (__FILE__, __LINE__, - "checking path component for symlinks: %s\n", - tmp_pathspec); - if (lstat (tmp_pathspec, &s) == 0) - { - if (S_ISLNK (s.st_mode) != 0) - { - has_symlinks = 1; - break; - } - - /* search backwards for last DIR_SEPARATOR */ - p = tmp_pathspec + strlen (tmp_pathspec) - 1; - while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - p--; - if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - { - /* no more DIR_SEPARATORS left */ - break; - } - *p = '\0'; - } - else - { - lt_fatal (__FILE__, __LINE__, - "error accessing file \"%s\": %s", - tmp_pathspec, nonnull (strerror (errno))); - } - } - XFREE (tmp_pathspec); - - if (!has_symlinks) - { - return xstrdup (pathspec); - } - - tmp_pathspec = realpath (pathspec, buf); - if (tmp_pathspec == 0) - { - lt_fatal (__FILE__, __LINE__, - "could not follow symlinks for %s", pathspec); - } - return xstrdup (tmp_pathspec); -#endif -} - -char * -strendzap (char *str, const char *pat) -{ - size_t len, patlen; - - assert (str != NULL); - assert (pat != NULL); - - len = strlen (str); - patlen = strlen (pat); - - if (patlen <= len) - { - str += len - patlen; - if (strcmp (str, pat) == 0) - *str = '\0'; - } - return str; -} - -void -lt_debugprintf (const char *file, int line, const char *fmt, ...) -{ - va_list args; - if (lt_debug) - { - (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); - va_start (args, fmt); - (void) vfprintf (stderr, fmt, args); - va_end (args); - } -} - -static void -lt_error_core (int exit_status, const char *file, - int line, const char *mode, - const char *message, va_list ap) -{ - fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); - vfprintf (stderr, message, ap); - fprintf (stderr, ".\n"); - - if (exit_status >= 0) - exit (exit_status); -} - -void -lt_fatal (const char *file, int line, const char *message, ...) -{ - va_list ap; - va_start (ap, message); - lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); - va_end (ap); -} - -static const char * -nonnull (const char *s) -{ - return s ? s : "(null)"; -} - -static const char * -nonempty (const char *s) -{ - return (s && !*s) ? "(empty)" : nonnull (s); -} - -void -lt_setenv (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_setenv) setting '%s' to '%s'\n", - nonnull (name), nonnull (value)); - { -#ifdef HAVE_SETENV - /* always make a copy, for consistency with !HAVE_SETENV */ - char *str = xstrdup (value); - setenv (name, str, 1); -#else - int len = strlen (name) + 1 + strlen (value) + 1; - char *str = XMALLOC (char, len); - sprintf (str, "%s=%s", name, value); - if (putenv (str) != EXIT_SUCCESS) - { - XFREE (str); - } -#endif - } -} - -char * -lt_extend_str (const char *orig_value, const char *add, int to_end) -{ - char *new_value; - if (orig_value && *orig_value) - { - int orig_value_len = strlen (orig_value); - int add_len = strlen (add); - new_value = XMALLOC (char, add_len + orig_value_len + 1); - if (to_end) - { - strcpy (new_value, orig_value); - strcpy (new_value + orig_value_len, add); - } - else - { - strcpy (new_value, add); - strcpy (new_value + add_len, orig_value); - } - } - else - { - new_value = xstrdup (add); - } - return new_value; -} - -void -lt_update_exe_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - /* some systems can't cope with a ':'-terminated path #' */ - int len = strlen (new_value); - while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1])) - { - new_value[len-1] = '\0'; - } - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -void -lt_update_lib_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -EOF - case $host_os in - mingw*) - cat <<"EOF" - -/* Prepares an argument vector before calling spawn(). - Note that spawn() does not by itself call the command interpreter - (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : - ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&v); - v.dwPlatformId == VER_PLATFORM_WIN32_NT; - }) ? "cmd.exe" : "command.com"). - Instead it simply concatenates the arguments, separated by ' ', and calls - CreateProcess(). We must quote the arguments since Win32 CreateProcess() - interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a - special way: - - Space and tab are interpreted as delimiters. They are not treated as - delimiters if they are surrounded by double quotes: "...". - - Unescaped double quotes are removed from the input. Their only effect is - that within double quotes, space and tab are treated like normal - characters. - - Backslashes not followed by double quotes are not special. - - But 2*n+1 backslashes followed by a double quote become - n backslashes followed by a double quote (n >= 0): - \" -> " - \\\" -> \" - \\\\\" -> \\" - */ -#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -char ** -prepare_spawn (char **argv) -{ - size_t argc; - char **new_argv; - size_t i; - - /* Count number of arguments. */ - for (argc = 0; argv[argc] != NULL; argc++) - ; - - /* Allocate new argument vector. */ - new_argv = XMALLOC (char *, argc + 1); - - /* Put quoted arguments into the new argument vector. */ - for (i = 0; i < argc; i++) - { - const char *string = argv[i]; - - if (string[0] == '\0') - new_argv[i] = xstrdup ("\"\""); - else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) - { - int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); - size_t length; - unsigned int backslashes; - const char *s; - char *quoted_string; - char *p; - - length = 0; - backslashes = 0; - if (quote_around) - length++; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - length += backslashes + 1; - length++; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - length += backslashes + 1; - - quoted_string = XMALLOC (char, length + 1); - - p = quoted_string; - backslashes = 0; - if (quote_around) - *p++ = '"'; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - { - unsigned int j; - for (j = backslashes + 1; j > 0; j--) - *p++ = '\\'; - } - *p++ = c; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - { - unsigned int j; - for (j = backslashes; j > 0; j--) - *p++ = '\\'; - *p++ = '"'; - } - *p = '\0'; - - new_argv[i] = quoted_string; - } - else - new_argv[i] = (char *) string; - } - new_argv[argc] = NULL; - - return new_argv; -} -EOF - ;; - esac - - cat <<"EOF" -void lt_dump_script (FILE* f) -{ -EOF - func_emit_wrapper yes | - $SED -n -e ' -s/^\(.\{79\}\)\(..*\)/\1\ -\2/ -h -s/\([\\"]\)/\\\1/g -s/$/\\n/ -s/\([^\n]*\).*/ fputs ("\1", f);/p -g -D' - cat <<"EOF" -} -EOF -} -# end: func_emit_cwrapperexe_src - -# func_win32_import_lib_p ARG -# True if ARG is an import lib, as indicated by $file_magic_cmd -func_win32_import_lib_p () -{ - $opt_debug - case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in - *import*) : ;; - *) false ;; - esac -} - -# func_mode_link arg... -func_mode_link () -{ - $opt_debug - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - # It is impossible to link a dll without this setting, and - # we shouldn't force the makefile maintainer to figure out - # which system we are compiling for in order to pass an extra - # flag for every libtool invocation. - # allow_undefined=no - - # FIXME: Unfortunately, there are problems with the above when trying - # to make a dll which has undefined symbols, in which case not - # even a static library is built. For now, we need to specify - # -no-undefined on the libtool link line when we can be certain - # that all symbols are satisfied, otherwise we get a static library. - allow_undefined=yes - ;; - *) - allow_undefined=yes - ;; - esac - libtool_args=$nonopt - base_compile="$nonopt $@" - compile_command=$nonopt - finalize_command=$nonopt - - compile_rpath= - finalize_rpath= - compile_shlibpath= - finalize_shlibpath= - convenience= - old_convenience= - deplibs= - old_deplibs= - compiler_flags= - linker_flags= - dllsearchpath= - lib_search_path=`pwd` - inst_prefix_dir= - new_inherited_linker_flags= - - avoid_version=no - bindir= - dlfiles= - dlprefiles= - dlself=no - export_dynamic=no - export_symbols= - export_symbols_regex= - generated= - libobjs= - ltlibs= - module=no - no_install=no - objs= - non_pic_objects= - precious_files_regex= - prefer_static_libs=no - preload=no - prev= - prevarg= - release= - rpath= - xrpath= - perm_rpath= - temp_rpath= - thread_safe=no - vinfo= - vinfo_number=no - weak_libs= - single_module="${wl}-single_module" - func_infer_tag $base_compile - - # We need to know -static, to get the right output filenames. - for arg - do - case $arg in - -shared) - test "$build_libtool_libs" != yes && \ - func_fatal_configuration "can not build a shared library" - build_old_libs=no - break - ;; 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then - case $prev in - output) - func_append compile_command " @OUTPUT@" - func_append finalize_command " @OUTPUT@" - ;; - esac - - case $prev in - bindir) - bindir="$arg" - prev= - continue - ;; - dlfiles|dlprefiles) - if test "$preload" = no; then - # Add the symbol object into the linking commands. - func_append compile_command " @SYMFILE@" - func_append finalize_command " @SYMFILE@" - preload=yes - fi - case $arg in - *.la | *.lo) ;; # We handle these cases below. - force) - if test "$dlself" = no; then - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - self) - if test "$prev" = dlprefiles; then - dlself=yes - elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then - dlself=yes - else - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - *) - if test "$prev" = dlfiles; then - func_append dlfiles " $arg" - else - func_append dlprefiles " $arg" - fi - prev= - continue - ;; - esac - ;; - expsyms) - export_symbols="$arg" - test -f "$arg" \ - || func_fatal_error "symbol file \`$arg' does not exist" - prev= - continue - ;; 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then - # Prepend the subdirectory the object is found in. - pic_object="$xdir$pic_object" - - if test "$prev" = dlfiles; then - if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then - func_append dlfiles " $pic_object" - prev= - continue - else - # If libtool objects are unsupported, then we need to preload. - prev=dlprefiles - fi - fi - - # CHECK ME: I think I busted this. -Ossama - if test "$prev" = dlprefiles; then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg="$pic_object" - fi - - # Non-PIC object. - if test "$non_pic_object" != none; then - # Prepend the subdirectory the object is found in. - non_pic_object="$xdir$non_pic_object" - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test "$pic_object" = none ; then - arg="$non_pic_object" - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object="$pic_object" - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; then - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir="$func_dirname_result" - - func_lo2o "$arg" - pic_object=$xdir$objdir/$func_lo2o_result - non_pic_object=$xdir$func_lo2o_result - func_append libobjs " $pic_object" - func_append non_pic_objects " $non_pic_object" - else - func_fatal_error "\`$arg' is not a valid libtool object" - fi - fi - done - else - func_fatal_error "link input file \`$arg' does not exist" - fi - arg=$save_arg - prev= - continue - ;; - precious_regex) - precious_files_regex="$arg" - prev= - continue - ;; - release) - release="-$arg" - prev= - continue - ;; - rpath | xrpath) - # We need an absolute path. - case $arg in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - func_fatal_error "only absolute run-paths are allowed" - ;; - esac - if test "$prev" = rpath; then - case "$rpath " in - *" $arg "*) ;; - *) func_append rpath " $arg" ;; - esac - else - case "$xrpath " in - *" $arg "*) ;; - *) func_append xrpath " $arg" ;; - esac - fi - prev= - continue - ;; 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It would break on at least - # Digital Unix and AIX. - continue - ;; - - -thread-safe) - thread_safe=yes - continue - ;; - - -version-info) - prev=vinfo - continue - ;; - - -version-number) - prev=vinfo - vinfo_number=yes - continue - ;; - - -weak) - prev=weak - continue - ;; - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - arg= - save_ifs="$IFS"; IFS=',' - for flag in $args; do - IFS="$save_ifs" - func_quote_for_eval "$flag" - func_append arg " $func_quote_for_eval_result" - func_append compiler_flags " $func_quote_for_eval_result" - done - IFS="$save_ifs" - func_stripname ' ' '' "$arg" - arg=$func_stripname_result - ;; - - -Wl,*) - func_stripname '-Wl,' '' "$arg" - args=$func_stripname_result - arg= - save_ifs="$IFS"; IFS=',' - for flag in $args; do - IFS="$save_ifs" - func_quote_for_eval "$flag" - func_append arg " $wl$func_quote_for_eval_result" - func_append compiler_flags " $wl$func_quote_for_eval_result" - func_append linker_flags " $func_quote_for_eval_result" - done - IFS="$save_ifs" - func_stripname ' ' '' "$arg" - arg=$func_stripname_result - ;; 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then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg="$pic_object" - fi - - # Non-PIC object. - if test "$non_pic_object" != none; then - # Prepend the subdirectory the object is found in. - non_pic_object="$xdir$non_pic_object" - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test "$pic_object" = none ; then - arg="$non_pic_object" - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object="$pic_object" - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; then - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir="$func_dirname_result" - - func_lo2o "$arg" - pic_object=$xdir$objdir/$func_lo2o_result - non_pic_object=$xdir$func_lo2o_result - func_append libobjs " $pic_object" - func_append non_pic_objects " $non_pic_object" - else - func_fatal_error "\`$arg' is not a valid libtool object" - fi - fi - ;; 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then - eval arg=\"$export_dynamic_flag_spec\" - func_append compile_command " $arg" - func_append finalize_command " $arg" - fi - - oldlibs= - # calculate the name of the file, without its directory - func_basename "$output" - outputname="$func_basename_result" - libobjs_save="$libobjs" - - if test -n "$shlibpath_var"; then - # get the directories listed in $shlibpath_var - eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\` - else - shlib_search_path= - fi - eval sys_lib_search_path=\"$sys_lib_search_path_spec\" - eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" - - func_dirname "$output" "/" "" - output_objdir="$func_dirname_result$objdir" - func_to_tool_file "$output_objdir/" - tool_output_objdir=$func_to_tool_file_result - # Create the object directory. - func_mkdir_p "$output_objdir" - - # Determine the type of output - case $output in - "") - func_fatal_help "you must specify an output file" - ;; - *.$libext) linkmode=oldlib ;; - *.lo | *.$objext) linkmode=obj ;; - *.la) linkmode=lib ;; - *) linkmode=prog ;; # Anything else should be a program. - esac - - specialdeplibs= - - libs= - # Find all interdependent deplibs by searching for libraries - # that are linked more than once (e.g. -la -lb -la) - for deplib in $deplibs; do - if $opt_preserve_dup_deps ; then - case "$libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append libs " $deplib" - done - - if test "$linkmode" = lib; then - libs="$predeps $libs $compiler_lib_search_path $postdeps" - - # Compute libraries that are listed more than once in $predeps - # $postdeps and mark them as special (i.e., whose duplicates are - # not to be eliminated). - pre_post_deps= - if $opt_duplicate_compiler_generated_deps; then - for pre_post_dep in $predeps $postdeps; do - case "$pre_post_deps " in - *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; - esac - func_append pre_post_deps " $pre_post_dep" - done - fi - pre_post_deps= - fi - - deplibs= - newdependency_libs= - newlib_search_path= - need_relink=no # whether we're linking any uninstalled libtool libraries - notinst_deplibs= # not-installed libtool libraries - notinst_path= # paths that contain not-installed libtool libraries - - case $linkmode in - lib) - passes="conv dlpreopen link" - for file in $dlfiles $dlprefiles; do - case $file in - *.la) ;; - *) - func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file" - ;; - esac - done - ;; - prog) - compile_deplibs= - finalize_deplibs= - alldeplibs=no - newdlfiles= - newdlprefiles= - passes="conv scan dlopen dlpreopen link" - ;; - *) passes="conv" - ;; - esac - - for pass in $passes; do - # The preopen pass in lib mode reverses $deplibs; put it back here - # so that -L comes before libs that need it for instance... - if test "$linkmode,$pass" = "lib,link"; then - ## FIXME: Find the place where the list is rebuilt in the wrong - ## order, and fix it there properly - tmp_deplibs= - for deplib in $deplibs; do - tmp_deplibs="$deplib $tmp_deplibs" - done - deplibs="$tmp_deplibs" - fi - - if test "$linkmode,$pass" = "lib,link" || - test "$linkmode,$pass" = "prog,scan"; then - libs="$deplibs" - deplibs= - fi - if test "$linkmode" = prog; then - case $pass in - dlopen) libs="$dlfiles" ;; - dlpreopen) libs="$dlprefiles" ;; - link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; - esac - fi - if test "$linkmode,$pass" = "lib,dlpreopen"; then - # Collect and forward deplibs of preopened libtool libs - for lib in $dlprefiles; do - # Ignore non-libtool-libs - dependency_libs= - func_resolve_sysroot "$lib" - case $lib in - *.la) func_source "$func_resolve_sysroot_result" ;; - esac - - # Collect preopened libtool deplibs, except any this library - # has declared as weak libs - for deplib in $dependency_libs; do - func_basename "$deplib" - deplib_base=$func_basename_result - case " $weak_libs " in - *" $deplib_base "*) ;; - *) func_append deplibs " $deplib" ;; - esac - done - done - libs="$dlprefiles" - fi - if test "$pass" = dlopen; then - # Collect dlpreopened libraries - save_deplibs="$deplibs" - deplibs= - fi - - for deplib in $libs; do - lib= - found=no - case $deplib in - -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ - |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append compiler_flags " $deplib" - if test "$linkmode" = lib ; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -l*) - if test "$linkmode" != lib && test "$linkmode" != prog; then - func_warning "\`-l' is ignored for archives/objects" - continue - fi - func_stripname '-l' '' "$deplib" - name=$func_stripname_result - if test "$linkmode" = lib; then - searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" - else - searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" - fi - for searchdir in $searchdirs; do - for search_ext in .la $std_shrext .so .a; do - # Search the libtool library - lib="$searchdir/lib${name}${search_ext}" - if test -f "$lib"; then - if test "$search_ext" = ".la"; then - found=yes - else - found=no - fi - break 2 - fi - done - done - if test "$found" != yes; then - # deplib doesn't seem to be a libtool library - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" - fi - continue - else # deplib is a libtool library - # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, - # We need to do some special things here, and not later. - if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then - case " $predeps $postdeps " in - *" $deplib "*) - if func_lalib_p "$lib"; then - library_names= - old_library= - func_source "$lib" - for l in $old_library $library_names; do - ll="$l" - done - if test "X$ll" = "X$old_library" ; then # only static version available - found=no - func_dirname "$lib" "" "." - ladir="$func_dirname_result" - lib=$ladir/$old_library - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - fi - ;; - *) ;; - esac - fi - fi - ;; # -l - *.ltframework) - if test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - if test "$linkmode" = lib ; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -L*) - case $linkmode in - lib) - deplibs="$deplib $deplibs" - test "$pass" = conv && continue - newdependency_libs="$deplib $newdependency_libs" - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - prog) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - continue - fi - if test "$pass" = scan; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - *) - func_warning "\`-L' is ignored for archives/objects" - ;; - esac # linkmode - continue - ;; # -L - -R*) - if test "$pass" = link; then - func_stripname '-R' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - dir=$func_resolve_sysroot_result - # Make sure the xrpath contains only unique directories. - case "$xrpath " in - *" $dir "*) ;; - *) func_append xrpath " $dir" ;; - esac - fi - deplibs="$deplib $deplibs" - continue - ;; - *.la) - func_resolve_sysroot "$deplib" - lib=$func_resolve_sysroot_result - ;; - *.$libext) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - continue - fi - case $linkmode in - lib) - # Linking convenience modules into shared libraries is allowed, - # but linking other static libraries is non-portable. - case " $dlpreconveniencelibs " in - *" $deplib "*) ;; - *) - valid_a_lib=no - case $deplibs_check_method in - match_pattern*) - set dummy $deplibs_check_method; shift - match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` - if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ - | $EGREP "$match_pattern_regex" > /dev/null; then - valid_a_lib=yes - fi - ;; - pass_all) - valid_a_lib=yes - ;; - esac - if test "$valid_a_lib" != yes; then - echo - $ECHO "*** Warning: Trying to link with static lib archive $deplib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have" - echo "*** because the file extensions .$libext of this argument makes me believe" - echo "*** that it is just a static archive that I should not use here." - else - echo - $ECHO "*** Warning: Linking the shared library $output against the" - $ECHO "*** static library $deplib is not portable!" - deplibs="$deplib $deplibs" - fi - ;; - esac - continue - ;; - prog) - if test "$pass" != link; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - continue - ;; - esac # linkmode - ;; # *.$libext - *.lo | *.$objext) - if test "$pass" = conv; then - deplibs="$deplib $deplibs" - elif test "$linkmode" = prog; then - if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then - # If there is no dlopen support or we're linking statically, - # we need to preload. - func_append newdlprefiles " $deplib" - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append newdlfiles " $deplib" - fi - fi - continue - ;; - %DEPLIBS%) - alldeplibs=yes - continue - ;; - esac # case $deplib - - if test "$found" = yes || test -f "$lib"; then : - else - func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'" - fi - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$lib" \ - || func_fatal_error "\`$lib' is not a valid libtool archive" - - func_dirname "$lib" "" "." - ladir="$func_dirname_result" - - dlname= - dlopen= - dlpreopen= - libdir= - library_names= - old_library= - inherited_linker_flags= - # If the library was installed with an old release of libtool, - # it will not redefine variables installed, or shouldnotlink - installed=yes - shouldnotlink=no - avoidtemprpath= - - - # Read the .la file - func_source "$lib" - - # Convert "-framework foo" to "foo.ltframework" - if test -n "$inherited_linker_flags"; then - tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` - for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do - case " $new_inherited_linker_flags " in - *" $tmp_inherited_linker_flag "*) ;; - *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; - esac - done - fi - dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - if test "$linkmode,$pass" = "lib,link" || - test "$linkmode,$pass" = "prog,scan" || - { test "$linkmode" != prog && test "$linkmode" != lib; }; then - test -n "$dlopen" && func_append dlfiles " $dlopen" - test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" - fi - - if test "$pass" = conv; then - # Only check for convenience libraries - deplibs="$lib $deplibs" - if test -z "$libdir"; then - if test -z "$old_library"; then - func_fatal_error "cannot find name of link library for \`$lib'" - fi - # It is a libtool convenience library, so add in its objects. - func_append convenience " $ladir/$objdir/$old_library" - func_append old_convenience " $ladir/$objdir/$old_library" - elif test "$linkmode" != prog && test "$linkmode" != lib; then - func_fatal_error "\`$lib' is not a convenience library" - fi - tmp_libs= - for deplib in $dependency_libs; do - deplibs="$deplib $deplibs" - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done - continue - fi # $pass = conv - - - # Get the name of the library we link against. - linklib= - if test -n "$old_library" && - { test "$prefer_static_libs" = yes || - test "$prefer_static_libs,$installed" = "built,no"; }; then - linklib=$old_library - else - for l in $old_library $library_names; do - linklib="$l" - done - fi - if test -z "$linklib"; then - func_fatal_error "cannot find name of link library for \`$lib'" - fi - - # This library was specified with -dlopen. - if test "$pass" = dlopen; then - if test -z "$libdir"; then - func_fatal_error "cannot -dlopen a convenience library: \`$lib'" - fi - if test -z "$dlname" || - test "$dlopen_support" != yes || - test "$build_libtool_libs" = no; then - # If there is no dlname, no dlopen support or we're linking - # statically, we need to preload. We also need to preload any - # dependent libraries so libltdl's deplib preloader doesn't - # bomb out in the load deplibs phase. - func_append dlprefiles " $lib $dependency_libs" - else - func_append newdlfiles " $lib" - fi - continue - fi # $pass = dlopen - - # We need an absolute path. - case $ladir in - [\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;; - *) - abs_ladir=`cd "$ladir" && pwd` - if test -z "$abs_ladir"; then - func_warning "cannot determine absolute directory name of \`$ladir'" - func_warning "passing it literally to the linker, although it might fail" - abs_ladir="$ladir" - fi - ;; - esac - func_basename "$lib" - laname="$func_basename_result" - - # Find the relevant object directory and library name. - if test "X$installed" = Xyes; then - if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then - func_warning "library \`$lib' was moved." - dir="$ladir" - absdir="$abs_ladir" - libdir="$abs_ladir" - else - dir="$lt_sysroot$libdir" - absdir="$lt_sysroot$libdir" - fi - test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes - else - if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then - dir="$ladir" - absdir="$abs_ladir" - # Remove this search path later - func_append notinst_path " $abs_ladir" - else - dir="$ladir/$objdir" - absdir="$abs_ladir/$objdir" - # Remove this search path later - func_append notinst_path " $abs_ladir" - fi - fi # $installed = yes - func_stripname 'lib' '.la' "$laname" - name=$func_stripname_result - - # This library was specified with -dlpreopen. - if test "$pass" = dlpreopen; then - if test -z "$libdir" && test "$linkmode" = prog; then - func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'" - fi - case "$host" in - # special handling for platforms with PE-DLLs. - *cygwin* | *mingw* | *cegcc* ) - # Linker will automatically link against shared library if both - # static and shared are present. Therefore, ensure we extract - # symbols from the import library if a shared library is present - # (otherwise, the dlopen module name will be incorrect). We do - # this by putting the import library name into $newdlprefiles. - # We recover the dlopen module name by 'saving' the la file - # name in a special purpose variable, and (later) extracting the - # dlname from the la file. - if test -n "$dlname"; then - func_tr_sh "$dir/$linklib" - eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" - func_append newdlprefiles " $dir/$linklib" - else - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - fi - ;; - * ) - # Prefer using a static library (so that no silly _DYNAMIC symbols - # are required to link). - if test -n "$old_library"; then - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - # Otherwise, use the dlname, so that lt_dlopen finds it. - elif test -n "$dlname"; then - func_append newdlprefiles " $dir/$dlname" - else - func_append newdlprefiles " $dir/$linklib" - fi - ;; - esac - fi # $pass = dlpreopen - - if test -z "$libdir"; then - # Link the convenience library - if test "$linkmode" = lib; then - deplibs="$dir/$old_library $deplibs" - elif test "$linkmode,$pass" = "prog,link"; then - compile_deplibs="$dir/$old_library $compile_deplibs" - finalize_deplibs="$dir/$old_library $finalize_deplibs" - else - deplibs="$lib $deplibs" # used for prog,scan pass - fi - continue - fi - - - if test "$linkmode" = prog && test "$pass" != link; then - func_append newlib_search_path " $ladir" - deplibs="$lib $deplibs" - - linkalldeplibs=no - if test "$link_all_deplibs" != no || test -z "$library_names" || - test "$build_libtool_libs" = no; then - linkalldeplibs=yes - fi - - tmp_libs= - for deplib in $dependency_libs; do - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - esac - # Need to link against all dependency_libs? - if test "$linkalldeplibs" = yes; then - deplibs="$deplib $deplibs" - else - # Need to hardcode shared library paths - # or/and link against static libraries - newdependency_libs="$deplib $newdependency_libs" - fi - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done # for deplib - continue - fi # $linkmode = prog... - - if test "$linkmode,$pass" = "prog,link"; then - if test -n "$library_names" && - { { test "$prefer_static_libs" = no || - test "$prefer_static_libs,$installed" = "built,yes"; } || - test -z "$old_library"; }; then - # We need to hardcode the library path - if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then - # Make sure the rpath contains only unique directories. - case "$temp_rpath:" in - *"$absdir:"*) ;; - *) func_append temp_rpath "$absdir:" ;; - esac - fi - - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi # $linkmode,$pass = prog,link... - - if test "$alldeplibs" = yes && - { test "$deplibs_check_method" = pass_all || - { test "$build_libtool_libs" = yes && - test -n "$library_names"; }; }; then - # We only need to search for static libraries - continue - fi - fi - - link_static=no # Whether the deplib will be linked statically - use_static_libs=$prefer_static_libs - if test "$use_static_libs" = built && test "$installed" = yes; then - use_static_libs=no - fi - if test -n "$library_names" && - { test "$use_static_libs" = no || test -z "$old_library"; }; then - case $host in - *cygwin* | *mingw* | *cegcc*) - # No point in relinking DLLs because paths are not encoded - func_append notinst_deplibs " $lib" - need_relink=no - ;; - *) - if test "$installed" = no; then - func_append notinst_deplibs " $lib" - need_relink=yes - fi - ;; - esac - # This is a shared library - - # Warn about portability, can't link against -module's on some - # systems (darwin). Don't bleat about dlopened modules though! - dlopenmodule="" - for dlpremoduletest in $dlprefiles; do - if test "X$dlpremoduletest" = "X$lib"; then - dlopenmodule="$dlpremoduletest" - break - fi - done - if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then - echo - if test "$linkmode" = prog; then - $ECHO "*** Warning: Linking the executable $output against the loadable module" - else - $ECHO "*** Warning: Linking the shared library $output against the loadable module" - fi - $ECHO "*** $linklib is not portable!" - fi - if test "$linkmode" = lib && - test "$hardcode_into_libs" = yes; then - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi - - if test -n "$old_archive_from_expsyms_cmds"; then - # figure out the soname - set dummy $library_names - shift - realname="$1" - shift - libname=`eval "\\$ECHO \"$libname_spec\""` - # use dlname if we got it. it's perfectly good, no? - if test -n "$dlname"; then - soname="$dlname" - elif test -n "$soname_spec"; then - # bleh windows - case $host in - *cygwin* | mingw* | *cegcc*) - func_arith $current - $age - major=$func_arith_result - versuffix="-$major" - ;; - esac - eval soname=\"$soname_spec\" - else - soname="$realname" - fi - - # Make a new name for the extract_expsyms_cmds to use - soroot="$soname" - func_basename "$soroot" - soname="$func_basename_result" - func_stripname 'lib' '.dll' "$soname" - newlib=libimp-$func_stripname_result.a - - # If the library has no export list, then create one now - if test -f "$output_objdir/$soname-def"; then : - else - func_verbose "extracting exported symbol list from \`$soname'" - func_execute_cmds "$extract_expsyms_cmds" 'exit $?' - fi - - # Create $newlib - if test -f "$output_objdir/$newlib"; then :; else - func_verbose "generating import library for \`$soname'" - func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' - fi - # make sure the library variables are pointing to the new library - dir=$output_objdir - linklib=$newlib - fi # test -n "$old_archive_from_expsyms_cmds" - - if test "$linkmode" = prog || test "$opt_mode" != relink; then - add_shlibpath= - add_dir= - add= - lib_linked=yes - case $hardcode_action in - immediate | unsupported) - if test "$hardcode_direct" = no; then - add="$dir/$linklib" - case $host in - *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;; - *-*-sysv4*uw2*) add_dir="-L$dir" ;; - *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ - *-*-unixware7*) add_dir="-L$dir" ;; - *-*-darwin* ) - # if the lib is a (non-dlopened) module then we can not - # link against it, someone is ignoring the earlier warnings - if /usr/bin/file -L $add 2> /dev/null | - $GREP ": [^:]* bundle" >/dev/null ; then - if test "X$dlopenmodule" != "X$lib"; then - $ECHO "*** Warning: lib $linklib is a module, not a shared library" - if test -z "$old_library" ; then - echo - echo "*** And there doesn't seem to be a static archive available" - echo "*** The link will probably fail, sorry" - else - add="$dir/$old_library" - fi - elif test -n "$old_library"; then - add="$dir/$old_library" - fi - fi - esac - elif test "$hardcode_minus_L" = no; then - case $host in - *-*-sunos*) add_shlibpath="$dir" ;; - esac - add_dir="-L$dir" - add="-l$name" - elif test "$hardcode_shlibpath_var" = no; then - add_shlibpath="$dir" - add="-l$name" - else - lib_linked=no - fi - ;; - relink) - if test "$hardcode_direct" = yes && - test "$hardcode_direct_absolute" = no; then - add="$dir/$linklib" - elif test "$hardcode_minus_L" = yes; then - add_dir="-L$absdir" - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add="-l$name" - elif test "$hardcode_shlibpath_var" = yes; then - add_shlibpath="$dir" - add="-l$name" - else - lib_linked=no - fi - ;; - *) lib_linked=no ;; - esac - - if test "$lib_linked" != yes; then - func_fatal_configuration "unsupported hardcode properties" - fi - - if test -n "$add_shlibpath"; then - case :$compile_shlibpath: in - *":$add_shlibpath:"*) ;; - *) func_append compile_shlibpath "$add_shlibpath:" ;; - esac - fi - if test "$linkmode" = prog; then - test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" - test -n "$add" && compile_deplibs="$add $compile_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - if test "$hardcode_direct" != yes && - test "$hardcode_minus_L" != yes && - test "$hardcode_shlibpath_var" = yes; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - fi - fi - fi - - if test "$linkmode" = prog || test "$opt_mode" = relink; then - add_shlibpath= - add_dir= - add= - # Finalize command for both is simple: just hardcode it. - if test "$hardcode_direct" = yes && - test "$hardcode_direct_absolute" = no; then - add="$libdir/$linklib" - elif test "$hardcode_minus_L" = yes; then - add_dir="-L$libdir" - add="-l$name" - elif test "$hardcode_shlibpath_var" = yes; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - add="-l$name" - elif test "$hardcode_automatic" = yes; then - if test -n "$inst_prefix_dir" && - test -f "$inst_prefix_dir$libdir/$linklib" ; then - add="$inst_prefix_dir$libdir/$linklib" - else - add="$libdir/$linklib" - fi - else - # We cannot seem to hardcode it, guess we'll fake it. - add_dir="-L$libdir" - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add="-l$name" - fi - - if test "$linkmode" = prog; then - test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" - test -n "$add" && finalize_deplibs="$add $finalize_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - fi - fi - elif test "$linkmode" = prog; then - # Here we assume that one of hardcode_direct or hardcode_minus_L - # is not unsupported. This is valid on all known static and - # shared platforms. - if test "$hardcode_direct" != unsupported; then - test -n "$old_library" && linklib="$old_library" - compile_deplibs="$dir/$linklib $compile_deplibs" - finalize_deplibs="$dir/$linklib $finalize_deplibs" - else - compile_deplibs="-l$name -L$dir $compile_deplibs" - finalize_deplibs="-l$name -L$dir $finalize_deplibs" - fi - elif test "$build_libtool_libs" = yes; then - # Not a shared library - if test "$deplibs_check_method" != pass_all; then - # We're trying link a shared library against a static one - # but the system doesn't support it. - - # Just print a warning and add the library to dependency_libs so - # that the program can be linked against the static library. - echo - $ECHO "*** Warning: This system can not link to static lib archive $lib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have." - if test "$module" = yes; then - echo "*** But as you try to build a module library, libtool will still create " - echo "*** a static module, that should work as long as the dlopening application" - echo "*** is linked with the -dlopen flag to resolve symbols at runtime." - if test -z "$global_symbol_pipe"; then - echo - echo "*** However, this would only work if libtool was able to extract symbol" - echo "*** lists from a program, using \`nm' or equivalent, but libtool could" - echo "*** not find such a program. So, this module is probably useless." - echo "*** \`nm' from GNU binutils and a full rebuild may help." - fi - if test "$build_old_libs" = no; then - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - else - deplibs="$dir/$old_library $deplibs" - link_static=yes - fi - fi # link shared/static library? - - if test "$linkmode" = lib; then - if test -n "$dependency_libs" && - { test "$hardcode_into_libs" != yes || - test "$build_old_libs" = yes || - test "$link_static" = yes; }; then - # Extract -R from dependency_libs - temp_deplibs= - for libdir in $dependency_libs; do - case $libdir in - -R*) func_stripname '-R' '' "$libdir" - temp_xrpath=$func_stripname_result - case " $xrpath " in - *" $temp_xrpath "*) ;; - *) func_append xrpath " $temp_xrpath";; - esac;; - *) func_append temp_deplibs " $libdir";; - esac - done - dependency_libs="$temp_deplibs" - fi - - func_append newlib_search_path " $absdir" - # Link against this library - test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs" - # ... and its dependency_libs - tmp_libs= - for deplib in $dependency_libs; do - newdependency_libs="$deplib $newdependency_libs" - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result";; - *) func_resolve_sysroot "$deplib" ;; - esac - if $opt_preserve_dup_deps ; then - case "$tmp_libs " in - *" $func_resolve_sysroot_result "*) - func_append specialdeplibs " $func_resolve_sysroot_result" ;; - esac - fi - func_append tmp_libs " $func_resolve_sysroot_result" - done - - if test "$link_all_deplibs" != no; then - # Add the search paths of all dependency libraries - for deplib in $dependency_libs; do - path= - case $deplib in - -L*) path="$deplib" ;; - *.la) - func_resolve_sysroot "$deplib" - deplib=$func_resolve_sysroot_result - func_dirname "$deplib" "" "." - dir=$func_dirname_result - # We need an absolute path. - case $dir in - [\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;; - *) - absdir=`cd "$dir" && pwd` - if test -z "$absdir"; then - func_warning "cannot determine absolute directory name of \`$dir'" - absdir="$dir" - fi - ;; - esac - if $GREP "^installed=no" $deplib > /dev/null; then - case $host in - *-*-darwin*) - depdepl= - eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` - if test -n "$deplibrary_names" ; then - for tmp in $deplibrary_names ; do - depdepl=$tmp - done - if test -f "$absdir/$objdir/$depdepl" ; then - depdepl="$absdir/$objdir/$depdepl" - darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - if test -z "$darwin_install_name"; then - darwin_install_name=`${OTOOL64} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - fi - func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}" - func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}" - path= - fi - fi - ;; - *) - path="-L$absdir/$objdir" - ;; - esac - else - eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` - test -z "$libdir" && \ - func_fatal_error "\`$deplib' is not a valid libtool archive" - test "$absdir" != "$libdir" && \ - func_warning "\`$deplib' seems to be moved" - - path="-L$absdir" - fi - ;; - esac - case " $deplibs " in - *" $path "*) ;; - *) deplibs="$path $deplibs" ;; - esac - done - fi # link_all_deplibs != no - fi # linkmode = lib - done # for deplib in $libs - if test "$pass" = link; then - if test "$linkmode" = "prog"; then - compile_deplibs="$new_inherited_linker_flags $compile_deplibs" - finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" - else - compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - fi - fi - dependency_libs="$newdependency_libs" - if test "$pass" = dlpreopen; then - # Link the dlpreopened libraries before other libraries - for deplib in $save_deplibs; do - deplibs="$deplib $deplibs" - done - fi - if test "$pass" != dlopen; then - if test "$pass" != conv; then - # Make sure lib_search_path contains only unique directories. - lib_search_path= - for dir in $newlib_search_path; do - case "$lib_search_path " in - *" $dir "*) ;; - *) func_append lib_search_path " $dir" ;; - esac - done - newlib_search_path= - fi - - if test "$linkmode,$pass" != "prog,link"; then - vars="deplibs" - else - vars="compile_deplibs finalize_deplibs" - fi - for var in $vars dependency_libs; do - # Add libraries to $var in reverse order - eval tmp_libs=\"\$$var\" - new_libs= - for deplib in $tmp_libs; do - # FIXME: Pedantically, this is the right thing to do, so - # that some nasty dependency loop isn't accidentally - # broken: - #new_libs="$deplib $new_libs" - # Pragmatically, this seems to cause very few problems in - # practice: - case $deplib in - -L*) new_libs="$deplib $new_libs" ;; - -R*) ;; - *) - # And here is the reason: when a library appears more - # than once as an explicit dependence of a library, or - # is implicitly linked in more than once by the - # compiler, it is considered special, and multiple - # occurrences thereof are not removed. Compare this - # with having the same library being listed as a - # dependency of multiple other libraries: in this case, - # we know (pedantically, we assume) the library does not - # need to be listed more than once, so we keep only the - # last copy. This is not always right, but it is rare - # enough that we require users that really mean to play - # such unportable linking tricks to link the library - # using -Wl,-lname, so that libtool does not consider it - # for duplicate removal. - case " $specialdeplibs " in - *" $deplib "*) new_libs="$deplib $new_libs" ;; - *) - case " $new_libs " in - *" $deplib "*) ;; - *) new_libs="$deplib $new_libs" ;; - esac - ;; - esac - ;; - esac - done - tmp_libs= - for deplib in $new_libs; do - case $deplib in - -L*) - case " $tmp_libs " in - *" $deplib "*) ;; - *) func_append tmp_libs " $deplib" ;; - esac - ;; - *) func_append tmp_libs " $deplib" ;; - esac - done - eval $var=\"$tmp_libs\" - done # for var - fi - # Last step: remove runtime libs from dependency_libs - # (they stay in deplibs) - tmp_libs= - for i in $dependency_libs ; do - case " $predeps $postdeps $compiler_lib_search_path " in - *" $i "*) - i="" - ;; - esac - if test -n "$i" ; then - func_append tmp_libs " $i" - fi - done - dependency_libs=$tmp_libs - done # for pass - if test "$linkmode" = prog; then - dlfiles="$newdlfiles" - fi - if test "$linkmode" = prog || test "$linkmode" = lib; then - dlprefiles="$newdlprefiles" - fi - - case $linkmode in - oldlib) - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - func_warning "\`-dlopen' is ignored for archives" - fi - - case " $deplibs" in - *\ -l* | *\ -L*) - func_warning "\`-l' and \`-L' are ignored for archives" ;; - esac - - test -n "$rpath" && \ - func_warning "\`-rpath' is ignored for archives" - - test -n "$xrpath" && \ - func_warning "\`-R' is ignored for archives" - - test -n "$vinfo" && \ - func_warning "\`-version-info/-version-number' is ignored for archives" - - test -n "$release" && \ - func_warning "\`-release' is ignored for archives" - - test -n "$export_symbols$export_symbols_regex" && \ - func_warning "\`-export-symbols' is ignored for archives" - - # Now set the variables for building old libraries. - build_libtool_libs=no - oldlibs="$output" - func_append objs "$old_deplibs" - ;; - - lib) - # Make sure we only generate libraries of the form `libNAME.la'. - case $outputname in - lib*) - func_stripname 'lib' '.la' "$outputname" - name=$func_stripname_result - eval shared_ext=\"$shrext_cmds\" - eval libname=\"$libname_spec\" - ;; - *) - test "$module" = no && \ - func_fatal_help "libtool library \`$output' must begin with \`lib'" - - if test "$need_lib_prefix" != no; then - # Add the "lib" prefix for modules if required - func_stripname '' '.la' "$outputname" - name=$func_stripname_result - eval shared_ext=\"$shrext_cmds\" - eval libname=\"$libname_spec\" - else - func_stripname '' '.la' "$outputname" - libname=$func_stripname_result - fi - ;; - esac - - if test -n "$objs"; then - if test "$deplibs_check_method" != pass_all; then - func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs" - else - echo - $ECHO "*** Warning: Linking the shared library $output against the non-libtool" - $ECHO "*** objects $objs is not portable!" - func_append libobjs " $objs" - fi - fi - - test "$dlself" != no && \ - func_warning "\`-dlopen self' is ignored for libtool libraries" - - set dummy $rpath - shift - test "$#" -gt 1 && \ - func_warning "ignoring multiple \`-rpath's for a libtool library" - - install_libdir="$1" - - oldlibs= - if test -z "$rpath"; then - if test "$build_libtool_libs" = yes; then - # Building a libtool convenience library. - # Some compilers have problems with a `.al' extension so - # convenience libraries should have the same extension an - # archive normally would. - oldlibs="$output_objdir/$libname.$libext $oldlibs" - build_libtool_libs=convenience - build_old_libs=yes - fi - - test -n "$vinfo" && \ - func_warning "\`-version-info/-version-number' is ignored for convenience libraries" - - test -n "$release" && \ - func_warning "\`-release' is ignored for convenience libraries" - else - - # Parse the version information argument. - save_ifs="$IFS"; IFS=':' - set dummy $vinfo 0 0 0 - shift - IFS="$save_ifs" - - test -n "$7" && \ - func_fatal_help "too many parameters to \`-version-info'" - - # convert absolute version numbers to libtool ages - # this retains compatibility with .la files and attempts - # to make the code below a bit more comprehensible - - case $vinfo_number in - yes) - number_major="$1" - number_minor="$2" - number_revision="$3" - # - # There are really only two kinds -- those that - # use the current revision as the major version - # and those that subtract age and use age as - # a minor version. But, then there is irix - # which has an extra 1 added just for fun - # - case $version_type in - # correct linux to gnu/linux during the next big refactor - darwin|linux|osf|windows|none) - func_arith $number_major + $number_minor - current=$func_arith_result - age="$number_minor" - revision="$number_revision" - ;; - freebsd-aout|freebsd-elf|qnx|sunos) - current="$number_major" - revision="$number_minor" - age="0" - ;; - irix|nonstopux) - func_arith $number_major + $number_minor - current=$func_arith_result - age="$number_minor" - revision="$number_minor" - lt_irix_increment=no - ;; - esac - ;; - no) - current="$1" - revision="$2" - age="$3" - ;; - esac - - # Check that each of the things are valid numbers. - case $current in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "CURRENT \`$current' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - case $revision in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "REVISION \`$revision' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - case $age in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "AGE \`$age' must be a nonnegative integer" - func_fatal_error "\`$vinfo' is not valid version information" - ;; - esac - - if test "$age" -gt "$current"; then - func_error "AGE \`$age' is greater than the current interface number \`$current'" - func_fatal_error "\`$vinfo' is not valid version information" - fi - - # Calculate the version variables. - major= - versuffix= - verstring= - case $version_type in - none) ;; - - darwin) - # Like Linux, but with the current version available in - # verstring for coding it into the library header - func_arith $current - $age - major=.$func_arith_result - versuffix="$major.$age.$revision" - # Darwin ld doesn't like 0 for these options... - func_arith $current + 1 - minor_current=$func_arith_result - xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision" - verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" - ;; 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then - major= - case $version_type in - darwin) - # we can't check for "0.0" in archive_cmds due to quoting - # problems, so we reset it completely - verstring= - ;; - *) - verstring="0.0" - ;; - esac - if test "$need_version" = no; then - versuffix= - else - versuffix=".0.0" - fi - fi - - # Remove version info from name if versioning should be avoided - if test "$avoid_version" = yes && test "$need_version" = no; then - major= - versuffix= - verstring="" - fi - - # Check to see if the archive will have undefined symbols. - if test "$allow_undefined" = yes; then - if test "$allow_undefined_flag" = unsupported; then - func_warning "undefined symbols not allowed in $host shared libraries" - build_libtool_libs=no - build_old_libs=yes - fi - else - # Don't allow undefined symbols. - allow_undefined_flag="$no_undefined_flag" - fi - - fi - - func_generate_dlsyms "$libname" "$libname" "yes" - func_append libobjs " $symfileobj" - test "X$libobjs" = "X " && libobjs= - - if test "$opt_mode" != relink; then - # Remove our outputs, but don't remove object files since they - # may have been created when compiling PIC objects. - removelist= - tempremovelist=`$ECHO "$output_objdir/*"` - for p in $tempremovelist; do - case $p in - *.$objext | *.gcno) - ;; - $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*) - if test "X$precious_files_regex" != "X"; then - if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 - then - continue - fi - fi - func_append removelist " $p" - ;; - *) ;; - esac - done - test -n "$removelist" && \ - func_show_eval "${RM}r \$removelist" - fi - - # Now set the variables for building old libraries. - if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then - func_append oldlibs " $output_objdir/$libname.$libext" - - # Transform .lo files to .o files. - oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP` - fi - - # Eliminate all temporary directories. - #for path in $notinst_path; do - # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` - # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` - # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` - #done - - if test -n "$xrpath"; then - # If the user specified any rpath flags, then add them. - temp_xrpath= - for libdir in $xrpath; do - func_replace_sysroot "$libdir" - func_append temp_xrpath " -R$func_replace_sysroot_result" - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then - dependency_libs="$temp_xrpath $dependency_libs" - fi - fi - - # Make sure dlfiles contains only unique files that won't be dlpreopened - old_dlfiles="$dlfiles" - dlfiles= - for lib in $old_dlfiles; do - case " $dlprefiles $dlfiles " in - *" $lib "*) ;; - *) func_append dlfiles " $lib" ;; - esac - done - - # Make sure dlprefiles contains only unique files - old_dlprefiles="$dlprefiles" - dlprefiles= - for lib in $old_dlprefiles; 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So, this module is probably useless." - echo "*** \`nm' from GNU binutils and a full rebuild may help." - fi - if test "$build_old_libs" = no; then - oldlibs="$output_objdir/$libname.$libext" - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - else - echo "*** The inter-library dependencies that have been dropped here will be" - echo "*** automatically added whenever a program is linked with this library" - echo "*** or is declared to -dlopen it." - - if test "$allow_undefined" = no; then - echo - echo "*** Since this library must not contain undefined symbols," - echo "*** because either the platform does not support them or" - echo "*** it was explicitly requested with -no-undefined," - echo "*** libtool will only create a static version of it." - if test "$build_old_libs" = no; then - oldlibs="$output_objdir/$libname.$libext" - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - fi - fi - # Done checking deplibs! - deplibs=$newdeplibs - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - case $host in - *-*-darwin*) - newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; - esac - - # move library search paths that coincide with paths to not yet - # installed libraries to the beginning of the library search list - new_libs= - for path in $notinst_path; do - case " $new_libs " in - *" -L$path/$objdir "*) ;; - *) - case " $deplibs " in - *" -L$path/$objdir "*) - func_append new_libs " -L$path/$objdir" ;; - esac - ;; - esac - done - for deplib in $deplibs; do - case $deplib in - -L*) - case " $new_libs " in - *" $deplib "*) ;; - *) func_append new_libs " $deplib" ;; - esac - ;; - *) func_append new_libs " $deplib" ;; - esac - done - deplibs="$new_libs" - - # All the library-specific variables (install_libdir is set above). - library_names= - old_library= - dlname= - - # Test again, we may have decided not to build it any more - if test "$build_libtool_libs" = yes; then - # Remove ${wl} instances when linking with ld. - # FIXME: should test the right _cmds variable. - case $archive_cmds in - *\$LD\ *) wl= ;; - esac - if test "$hardcode_into_libs" = yes; then - # Hardcode the library paths - hardcode_libdirs= - dep_rpath= - rpath="$finalize_rpath" - test "$opt_mode" != relink && rpath="$compile_rpath$rpath" - for libdir in $rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - func_replace_sysroot "$libdir" - libdir=$func_replace_sysroot_result - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append dep_rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" - fi - if test -n "$runpath_var" && test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" - fi - test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" - fi - - shlibpath="$finalize_shlibpath" - test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath" - if test -n "$shlibpath"; then - eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" - fi - - # Get the real and link names of the library. - eval shared_ext=\"$shrext_cmds\" - eval library_names=\"$library_names_spec\" - set dummy $library_names - shift - realname="$1" - shift - - if test -n "$soname_spec"; then - eval soname=\"$soname_spec\" - else - soname="$realname" - fi - if test -z "$dlname"; then - dlname=$soname - fi - - lib="$output_objdir/$realname" - linknames= - for link - do - func_append linknames " $link" - done - - # Use standard objects if they are pic - test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` - test "X$libobjs" = "X " && libobjs= - - delfiles= - if test -n "$export_symbols" && test -n "$include_expsyms"; then - $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" - export_symbols="$output_objdir/$libname.uexp" - func_append delfiles " $export_symbols" - fi - - orig_export_symbols= - case $host_os in - cygwin* | mingw* | cegcc*) - if test -n "$export_symbols" && test -z "$export_symbols_regex"; then - # exporting using user supplied symfile - if test "x`$SED 1q $export_symbols`" != xEXPORTS; then - # and it's NOT already a .def file. Must figure out - # which of the given symbols are data symbols and tag - # them as such. So, trigger use of export_symbols_cmds. - # export_symbols gets reassigned inside the "prepare - # the list of exported symbols" if statement, so the - # include_expsyms logic still works. - orig_export_symbols="$export_symbols" - export_symbols= - always_export_symbols=yes - fi - fi - ;; - esac - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then - func_verbose "generating symbol list for \`$libname.la'" - export_symbols="$output_objdir/$libname.exp" - $opt_dry_run || $RM $export_symbols - cmds=$export_symbols_cmds - save_ifs="$IFS"; IFS='~' - for cmd1 in $cmds; do - IFS="$save_ifs" - # Take the normal branch if the nm_file_list_spec branch - # doesn't work or if tool conversion is not needed. - case $nm_file_list_spec~$to_tool_file_cmd in - *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) - try_normal_branch=yes - eval cmd=\"$cmd1\" - func_len " $cmd" - len=$func_len_result - ;; - *) - try_normal_branch=no - ;; - esac - if test "$try_normal_branch" = yes \ - && { test "$len" -lt "$max_cmd_len" \ - || test "$max_cmd_len" -le -1; } - then - func_show_eval "$cmd" 'exit $?' - skipped_export=false - elif test -n "$nm_file_list_spec"; then - func_basename "$output" - output_la=$func_basename_result - save_libobjs=$libobjs - save_output=$output - output=${output_objdir}/${output_la}.nm - func_to_tool_file "$output" - libobjs=$nm_file_list_spec$func_to_tool_file_result - func_append delfiles " $output" - func_verbose "creating $NM input file list: $output" - for obj in $save_libobjs; do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" - done > "$output" - eval cmd=\"$cmd1\" - func_show_eval "$cmd" 'exit $?' - output=$save_output - libobjs=$save_libobjs - skipped_export=false - else - # The command line is too long to execute in one step. - func_verbose "using reloadable object file for export list..." - skipped_export=: - # Break out early, otherwise skipped_export may be - # set to false by a later but shorter cmd. - break - fi - done - IFS="$save_ifs" - if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - fi - - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols="$export_symbols" - test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - - tmp_deplibs= - for test_deplib in $deplibs; do - case " $convenience " in - *" $test_deplib "*) ;; - *) - func_append tmp_deplibs " $test_deplib" - ;; - esac - done - deplibs="$tmp_deplibs" - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec" && - test "$compiler_needs_object" = yes && - test -z "$libobjs"; then - # extract the archives, so we have objects to list. - # TODO: could optimize this to just extract one archive. - whole_archive_flag_spec= - fi - if test -n "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - else - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - fi - - if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then - eval flag=\"$thread_safe_flag_spec\" - func_append linker_flags " $flag" - fi - - # Make a backup of the uninstalled library when relinking - if test "$opt_mode" = relink; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? - fi - - # Do each of the archive commands. - if test "$module" = yes && test -n "$module_cmds" ; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - eval test_cmds=\"$module_expsym_cmds\" - cmds=$module_expsym_cmds - else - eval test_cmds=\"$module_cmds\" - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - eval test_cmds=\"$archive_expsym_cmds\" - cmds=$archive_expsym_cmds - else - eval test_cmds=\"$archive_cmds\" - cmds=$archive_cmds - fi - fi - - if test "X$skipped_export" != "X:" && - func_len " $test_cmds" && - len=$func_len_result && - test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then - : - else - # The command line is too long to link in one step, link piecewise - # or, if using GNU ld and skipped_export is not :, use a linker - # script. - - # Save the value of $output and $libobjs because we want to - # use them later. If we have whole_archive_flag_spec, we - # want to use save_libobjs as it was before - # whole_archive_flag_spec was expanded, because we can't - # assume the linker understands whole_archive_flag_spec. - # This may have to be revisited, in case too many - # convenience libraries get linked in and end up exceeding - # the spec. - if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - fi - save_output=$output - func_basename "$output" - output_la=$func_basename_result - - # Clear the reloadable object creation command queue and - # initialize k to one. - test_cmds= - concat_cmds= - objlist= - last_robj= - k=1 - - if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then - output=${output_objdir}/${output_la}.lnkscript - func_verbose "creating GNU ld script: $output" - echo 'INPUT (' > $output - for obj in $save_libobjs - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - echo ')' >> $output - func_append delfiles " $output" - func_to_tool_file "$output" - output=$func_to_tool_file_result - elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then - output=${output_objdir}/${output_la}.lnk - func_verbose "creating linker input file list: $output" - : > $output - set x $save_libobjs - shift - firstobj= - if test "$compiler_needs_object" = yes; then - firstobj="$1 " - shift - fi - for obj - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - func_append delfiles " $output" - func_to_tool_file "$output" - output=$firstobj\"$file_list_spec$func_to_tool_file_result\" - else - if test -n "$save_libobjs"; then - func_verbose "creating reloadable object files..." - output=$output_objdir/$output_la-${k}.$objext - eval test_cmds=\"$reload_cmds\" - func_len " $test_cmds" - len0=$func_len_result - len=$len0 - - # Loop over the list of objects to be linked. - for obj in $save_libobjs - do - func_len " $obj" - func_arith $len + $func_len_result - len=$func_arith_result - if test "X$objlist" = X || - test "$len" -lt "$max_cmd_len"; then - func_append objlist " $obj" - else - # The command $test_cmds is almost too long, add a - # command to the queue. - if test "$k" -eq 1 ; then - # The first file doesn't have a previous command to add. - reload_objs=$objlist - eval concat_cmds=\"$reload_cmds\" - else - # All subsequent reloadable object files will link in - # the last one created. - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" - fi - last_robj=$output_objdir/$output_la-${k}.$objext - func_arith $k + 1 - k=$func_arith_result - output=$output_objdir/$output_la-${k}.$objext - objlist=" $obj" - func_len " $last_robj" - func_arith $len0 + $func_len_result - len=$func_arith_result - fi - done - # Handle the remaining objects by creating one last - # reloadable object file. All subsequent reloadable object - # files will link in the last one created. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\${concat_cmds}$reload_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\" - fi - func_append delfiles " $output" - - else - output= - fi - - if ${skipped_export-false}; then - func_verbose "generating symbol list for \`$libname.la'" - export_symbols="$output_objdir/$libname.exp" - $opt_dry_run || $RM $export_symbols - libobjs=$output - # Append the command to create the export file. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - fi - - test -n "$save_libobjs" && - func_verbose "creating a temporary reloadable object file: $output" - - # Loop through the commands generated above and execute them. - save_ifs="$IFS"; IFS='~' - for cmd in $concat_cmds; do - IFS="$save_ifs" - $opt_silent || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS="$save_ifs" - - if test -n "$export_symbols_regex" && ${skipped_export-false}; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - - if ${skipped_export-false}; then - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols="$export_symbols" - test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols" - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for \`$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - fi - - libobjs=$output - # Restore the value of output. - output=$save_output - - if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - fi - # Expand the library linking commands again to reset the - # value of $libobjs for piecewise linking. - - # Do each of the archive commands. - if test "$module" = yes && test -n "$module_cmds" ; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - cmds=$module_expsym_cmds - else - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - cmds=$archive_expsym_cmds - else - cmds=$archive_cmds - fi - fi - fi - - if test -n "$delfiles"; then - # Append the command to remove temporary files to $cmds. - eval cmds=\"\$cmds~\$RM $delfiles\" - fi - - # Add any objects from preloaded convenience libraries - if test -n "$dlprefiles"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $dlprefiles - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - - save_ifs="$IFS"; IFS='~' - for cmd in $cmds; do - IFS="$save_ifs" - eval cmd=\"$cmd\" - $opt_silent || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS="$save_ifs" - - # Restore the uninstalled library and exit - if test "$opt_mode" = relink; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? - - if test -n "$convenience"; then - if test -z "$whole_archive_flag_spec"; then - func_show_eval '${RM}r "$gentop"' - fi - fi - - exit $EXIT_SUCCESS - fi - - # Create links to the real library. - for linkname in $linknames; do - if test "$realname" != "$linkname"; then - func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' - fi - done - - # If -module or -export-dynamic was specified, set the dlname. - if test "$module" = yes || test "$export_dynamic" = yes; then - # On all known operating systems, these are identical. - dlname="$soname" - fi - fi - ;; - - obj) - if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then - func_warning "\`-dlopen' is ignored for objects" - fi - - case " $deplibs" in - *\ -l* | *\ -L*) - func_warning "\`-l' and \`-L' are ignored for objects" ;; - esac - - test -n "$rpath" && \ - func_warning "\`-rpath' is ignored for objects" - - test -n "$xrpath" && \ - func_warning "\`-R' is ignored for objects" - - test -n "$vinfo" && \ - func_warning "\`-version-info' is ignored for objects" - - test -n "$release" && \ - func_warning "\`-release' is ignored for objects" - - case $output in - *.lo) - test -n "$objs$old_deplibs" && \ - func_fatal_error "cannot build library object \`$output' from non-libtool objects" - - libobj=$output - func_lo2o "$libobj" - obj=$func_lo2o_result - ;; - *) - libobj= - obj="$output" - ;; - esac - - # Delete the old objects. - $opt_dry_run || $RM $obj $libobj - - # Objects from convenience libraries. This assumes - # single-version convenience libraries. Whenever we create - # different ones for PIC/non-PIC, this we'll have to duplicate - # the extraction. - reload_conv_objs= - gentop= - # reload_cmds runs $LD directly, so let us get rid of - # -Wl from whole_archive_flag_spec and hope we can get by with - # turning comma into space.. - wl= - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec"; then - eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" - reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` - else - gentop="$output_objdir/${obj}x" - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - reload_conv_objs="$reload_objs $func_extract_archives_result" - fi - fi - - # If we're not building shared, we need to use non_pic_objs - test "$build_libtool_libs" != yes && libobjs="$non_pic_objects" - - # Create the old-style object. - reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test - - output="$obj" - func_execute_cmds "$reload_cmds" 'exit $?' - - # Exit if we aren't doing a library object file. - if test -z "$libobj"; then - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - fi - - if test "$build_libtool_libs" != yes; then - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - # Create an invalid libtool object if no PIC, so that we don't - # accidentally link it into a program. - # $show "echo timestamp > $libobj" - # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? - exit $EXIT_SUCCESS - fi - - if test -n "$pic_flag" || test "$pic_mode" != default; then - # Only do commands if we really have different PIC objects. - reload_objs="$libobjs $reload_conv_objs" - output="$libobj" - func_execute_cmds "$reload_cmds" 'exit $?' - fi - - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - ;; - - prog) - case $host in - *cygwin*) func_stripname '' '.exe' "$output" - output=$func_stripname_result.exe;; - esac - test -n "$vinfo" && \ - func_warning "\`-version-info' is ignored for programs" - - test -n "$release" && \ - func_warning "\`-release' is ignored for programs" - - test "$preload" = yes \ - && test "$dlopen_support" = unknown \ - && test "$dlopen_self" = unknown \ - && test "$dlopen_self_static" = unknown && \ - func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support." - - case $host in - *-*-rhapsody* | *-*-darwin1.[012]) - # On Rhapsody replace the C library is the System framework - compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` - finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` - ;; - esac - - case $host in - *-*-darwin*) - # Don't allow lazy linking, it breaks C++ global constructors - # But is supposedly fixed on 10.4 or later (yay!). - if test "$tagname" = CXX ; then - case ${MACOSX_DEPLOYMENT_TARGET-10.0} in - 10.[0123]) - func_append compile_command " ${wl}-bind_at_load" - func_append finalize_command " ${wl}-bind_at_load" - ;; - esac - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; - esac - - - # move library search paths that coincide with paths to not yet - # installed libraries to the beginning of the library search list - new_libs= - for path in $notinst_path; do - case " $new_libs " in - *" -L$path/$objdir "*) ;; - *) - case " $compile_deplibs " in - *" -L$path/$objdir "*) - func_append new_libs " -L$path/$objdir" ;; - esac - ;; - esac - done - for deplib in $compile_deplibs; do - case $deplib in - -L*) - case " $new_libs " in - *" $deplib "*) ;; - *) func_append new_libs " $deplib" ;; - esac - ;; - *) func_append new_libs " $deplib" ;; - esac - done - compile_deplibs="$new_libs" - - - func_append compile_command " $compile_deplibs" - func_append finalize_command " $finalize_deplibs" - - if test -n "$rpath$xrpath"; then - # If the user specified any rpath flags, then add them. - for libdir in $rpath $xrpath; do - # This is the magic to use -rpath. - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - fi - - # Now hardcode the library paths - rpath= - hardcode_libdirs= - for libdir in $compile_rpath $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'` - case :$dllsearchpath: in - *":$libdir:"*) ;; - ::) dllsearchpath=$libdir;; - *) func_append dllsearchpath ":$libdir";; - esac - case :$dllsearchpath: in - *":$testbindir:"*) ;; - ::) dllsearchpath=$testbindir;; - *) func_append dllsearchpath ":$testbindir";; - esac - ;; - esac - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - compile_rpath="$rpath" - - rpath= - hardcode_libdirs= - for libdir in $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs="$libdir" - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$finalize_perm_rpath " in - *" $libdir "*) ;; - *) func_append finalize_perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir="$hardcode_libdirs" - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - finalize_rpath="$rpath" - - if test -n "$libobjs" && test "$build_old_libs" = yes; then - # Transform all the library objects into standard objects. - compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` - finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` - fi - - func_generate_dlsyms "$outputname" "@PROGRAM@" "no" - - # template prelinking step - if test -n "$prelink_cmds"; then - func_execute_cmds "$prelink_cmds" 'exit $?' - fi - - wrappers_required=yes - case $host in - *cegcc* | *mingw32ce*) - # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. - wrappers_required=no - ;; - *cygwin* | *mingw* ) - if test "$build_libtool_libs" != yes; then - wrappers_required=no - fi - ;; - *) - if test "$need_relink" = no || test "$build_libtool_libs" != yes; then - wrappers_required=no - fi - ;; - esac - if test "$wrappers_required" = no; then - # Replace the output file specification. - compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` - link_command="$compile_command$compile_rpath" - - # We have no uninstalled library dependencies, so finalize right now. - exit_status=0 - func_show_eval "$link_command" 'exit_status=$?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - # Delete the generated files. - if test -f "$output_objdir/${outputname}S.${objext}"; then - func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"' - fi - - exit $exit_status - fi - - if test -n "$compile_shlibpath$finalize_shlibpath"; then - compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" - fi - if test -n "$finalize_shlibpath"; then - finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" - fi - - compile_var= - finalize_var= - if test -n "$runpath_var"; then - if test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - compile_var="$runpath_var=\"$rpath\$$runpath_var\" " - fi - if test -n "$finalize_perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $finalize_perm_rpath; do - func_append rpath "$dir:" - done - finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " - fi - fi - - if test "$no_install" = yes; then - # We don't need to create a wrapper script. - link_command="$compile_var$compile_command$compile_rpath" - # Replace the output file specification. - link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` - # Delete the old output file. - $opt_dry_run || $RM $output - # Link the executable and exit - func_show_eval "$link_command" 'exit $?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - exit $EXIT_SUCCESS - fi - - if test "$hardcode_action" = relink; then - # Fast installation is not supported - link_command="$compile_var$compile_command$compile_rpath" - relink_command="$finalize_var$finalize_command$finalize_rpath" - - func_warning "this platform does not like uninstalled shared libraries" - func_warning "\`$output' will be relinked during installation" - else - if test "$fast_install" != no; then - link_command="$finalize_var$compile_command$finalize_rpath" - if test "$fast_install" = yes; then - relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` - else - # fast_install is set to needless - relink_command= - fi - else - link_command="$compile_var$compile_command$compile_rpath" - relink_command="$finalize_var$finalize_command$finalize_rpath" - fi - fi - - # Replace the output file specification. - link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` - - # Delete the old output files. - $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname - - func_show_eval "$link_command" 'exit $?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output_objdir/$outputname" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - # Now create the wrapper script. - func_verbose "creating $output" - - # Quote the relink command for shipping. - if test -n "$relink_command"; then - # Preserve any variables that may affect compiler behavior - for var in $variables_saved_for_relink; do - if eval test -z \"\${$var+set}\"; then - relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" - elif eval var_value=\$$var; test -z "$var_value"; then - relink_command="$var=; export $var; $relink_command" - else - func_quote_for_eval "$var_value" - relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" - fi - done - relink_command="(cd `pwd`; $relink_command)" - relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` - fi - - # Only actually do things if not in dry run mode. - $opt_dry_run || { - # win32 will think the script is a binary if it has - # a .exe suffix, so we strip it off here. - case $output in - *.exe) func_stripname '' '.exe' "$output" - output=$func_stripname_result ;; - esac - # test for cygwin because mv fails w/o .exe extensions - case $host in - *cygwin*) - exeext=.exe - func_stripname '' '.exe' "$outputname" - outputname=$func_stripname_result ;; - *) exeext= ;; - esac - case $host in - *cygwin* | *mingw* ) - func_dirname_and_basename "$output" "" "." - output_name=$func_basename_result - output_path=$func_dirname_result - cwrappersource="$output_path/$objdir/lt-$output_name.c" - cwrapper="$output_path/$output_name.exe" - $RM $cwrappersource $cwrapper - trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 - - func_emit_cwrapperexe_src > $cwrappersource - - # The wrapper executable is built using the $host compiler, - # because it contains $host paths and files. If cross- - # compiling, it, like the target executable, must be - # executed on the $host or under an emulation environment. - $opt_dry_run || { - $LTCC $LTCFLAGS -o $cwrapper $cwrappersource - $STRIP $cwrapper - } - - # Now, create the wrapper script for func_source use: - func_ltwrapper_scriptname $cwrapper - $RM $func_ltwrapper_scriptname_result - trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 - $opt_dry_run || { - # note: this script will not be executed, so do not chmod. - if test "x$build" = "x$host" ; then - $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result - else - func_emit_wrapper no > $func_ltwrapper_scriptname_result - fi - } - ;; - * ) - $RM $output - trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 - - func_emit_wrapper no > $output - chmod +x $output - ;; - esac - } - exit $EXIT_SUCCESS - ;; - esac - - # See if we need to build an old-fashioned archive. - for oldlib in $oldlibs; do - - if test "$build_libtool_libs" = convenience; then - oldobjs="$libobjs_save $symfileobj" - addlibs="$convenience" - build_libtool_libs=no - else - if test "$build_libtool_libs" = module; then - oldobjs="$libobjs_save" - build_libtool_libs=no - else - oldobjs="$old_deplibs $non_pic_objects" - if test "$preload" = yes && test -f "$symfileobj"; then - func_append oldobjs " $symfileobj" - fi - fi - addlibs="$old_convenience" - fi - - if test -n "$addlibs"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $addlibs - func_append oldobjs " $func_extract_archives_result" - fi - - # Do each command in the archive commands. - if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then - cmds=$old_archive_from_new_cmds - else - - # Add any objects from preloaded convenience libraries - if test -n "$dlprefiles"; then - gentop="$output_objdir/${outputname}x" - func_append generated " $gentop" - - func_extract_archives $gentop $dlprefiles - func_append oldobjs " $func_extract_archives_result" - fi - - # POSIX demands no paths to be encoded in archives. 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Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to cjpeg.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -cjpeg.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -cjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -libjpeg.lib ; built by libjpeg.prj -pcfltlib.lib ; floating point library -; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpeg/makdjpeg.st b/jpeg/makdjpeg.st deleted file mode 100755 index 4b61404..0000000 --- a/jpeg/makdjpeg.st +++ /dev/null @@ -1,36 +0,0 @@ -; Project file for Independent JPEG Group's software -; -; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. -; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to djpeg.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -djpeg.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -djpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdcolmap.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrppm.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrgif.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrtarga.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrbmp.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -wrrle.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -libjpeg.lib ; built by libjpeg.prj -pcfltlib.lib ; floating point library -; the float library can be omitted if you've turned off DCT_FLOAT_SUPPORTED -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpeg/makeadsw.vc6 b/jpeg/makeadsw.vc6 deleted file mode 100755 index b44838f..0000000 --- a/jpeg/makeadsw.vc6 +++ /dev/null @@ -1,77 +0,0 @@ -Microsoft Developer Studio Workspace File, Format Version 6.00 -# WARNUNG: DIESE ARBEITSBEREICHSDATEI DARF NICHT BEARBEITET ODER GELÖSCHT WERDEN! - 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Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "djpeg.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. 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Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "djpeg.mak" CFG="djpeg - Win32" -!MESSAGE -!MESSAGE Fr die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "djpeg - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE -!ERROR Eine ungltige Konfiguration wurde angegeben. -!ENDIF - -!IF "$(OS)" == "Windows_NT" -NULL= -!ELSE -NULL=nul -!ENDIF - -CPP=cl.exe -RSC=rc.exe -OUTDIR=.\djpeg\Release -INTDIR=.\djpeg\Release -# Begin Custom Macros -OutDir=.\djpeg\Release -# End Custom Macros - -ALL : "$(OUTDIR)\djpeg.exe" - - -CLEAN : - -@erase "$(INTDIR)\cdjpeg.obj" - -@erase "$(INTDIR)\djpeg.obj" - -@erase "$(INTDIR)\rdcolmap.obj" - -@erase "$(INTDIR)\vc60.idb" - -@erase "$(INTDIR)\wrbmp.obj" - -@erase "$(INTDIR)\wrgif.obj" - -@erase "$(INTDIR)\wrppm.obj" - -@erase "$(INTDIR)\wrrle.obj" - -@erase "$(INTDIR)\wrtarga.obj" - -@erase "$(OUTDIR)\djpeg.exe" - -"$(OUTDIR)" : - if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" - -BSC32=bscmake.exe -BSC32_FLAGS=/nologo /o"$(OUTDIR)\djpeg.bsc" -BSC32_SBRS= \ - -LINK32=link.exe -LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\djpeg.pdb" /machine:I386 /out:"$(OUTDIR)\djpeg.exe" -LINK32_OBJS= \ - "$(INTDIR)\cdjpeg.obj" \ - "$(INTDIR)\djpeg.obj" \ - "$(INTDIR)\rdcolmap.obj" \ - "$(INTDIR)\wrbmp.obj" \ - "$(INTDIR)\wrgif.obj" \ - "$(INTDIR)\wrppm.obj" \ - "$(INTDIR)\wrrle.obj" \ - "$(INTDIR)\wrtarga.obj" - -"$(OUTDIR)\djpeg.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) - $(LINK32) @<< - $(LINK32_FLAGS) $(LINK32_OBJS) -<< - -CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\djpeg.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c - -.c{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.c{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - - -!IF "$(NO_EXTERNAL_DEPS)" != "1" -!IF EXISTS("djpeg.dep") -!INCLUDE "djpeg.dep" -!ELSE -!MESSAGE Warning: cannot find "djpeg.dep" -!ENDIF -!ENDIF - - -!IF "$(CFG)" == "djpeg - Win32" -SOURCE=.\cdjpeg.c - -"$(INTDIR)\cdjpeg.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\djpeg.c - -"$(INTDIR)\djpeg.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\rdcolmap.c - -"$(INTDIR)\rdcolmap.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrbmp.c - -"$(INTDIR)\wrbmp.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrgif.c - -"$(INTDIR)\wrgif.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrppm.c - -"$(INTDIR)\wrppm.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrrle.c - -"$(INTDIR)\wrrle.obj" : $(SOURCE) "$(INTDIR)" - - -SOURCE=.\wrtarga.c - -"$(INTDIR)\wrtarga.obj" : $(SOURCE) "$(INTDIR)" - - - -!ENDIF - diff --git a/jpeg/makedvcx.v10 b/jpeg/makedvcx.v10 deleted file mode 100755 index d3e4cbf..0000000 --- a/jpeg/makedvcx.v10 +++ /dev/null @@ -1,76 +0,0 @@ - - - - - Release - Win32 - - - - {11043137-B453-4DFA-9010-4D2B9DC1545C} - Win32Proj - djpeg - - - - Application - false - true - Unicode - - - - - - - - - - false - $(ProjectName)\$(Configuration)\ - $(ProjectName)\$(Configuration)\ - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS - true - true - 4996 - - - Console - true - true - true - Release\jpeg.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) - - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/jpeg/makefile.ansi b/jpeg/makefile.ansi deleted file mode 100755 index 7d0499f..0000000 --- a/jpeg/makefile.ansi +++ /dev/null @@ -1,221 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Unix-like systems with ANSI-capable compilers. -# If you have a non-ANSI compiler, makefile.unix is a better starting point. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= cc - -# You may need to adjust these cc options: -CFLAGS= -O -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -LDFLAGS= - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= - -# Put here the object file name for the correct system-dependent memory -# manager file. For Unix this is usually jmemnobs.o, but you may want -# to use jmemansi.o or jmemname.o if you have limited swap space. -SYSDEPMEM= jmemnobs.o - -# miscellaneous OS-dependent stuff -# linker -LN= $(CC) -# file deletion command -RM= rm -f -# library (.a) file creation command -AR= ar rc -# second step in .a creation (use "touch" if not needed) -AR2= ranlib - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.a -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.a cjpeg djpeg jpegtran rdjpgcom wrjpgcom - -libjpeg.a: $(LIBOBJECTS) - $(RM) libjpeg.a - $(AR) libjpeg.a $(LIBOBJECTS) - $(AR2) libjpeg.a - -cjpeg: $(COBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.a $(LDLIBS) - -djpeg: $(DOBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.a $(LDLIBS) - -jpegtran: $(TROBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.a $(LDLIBS) - -rdjpgcom: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) - -wrjpgcom: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - $(RM) *.o cjpeg djpeg jpegtran libjpeg.a rdjpgcom wrjpgcom - $(RM) core testout* - -test: cjpeg djpeg jpegtran - $(RM) testout* - ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - ./cjpeg -dct int -outfile testout.jpg testimg.ppm - ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - ./jpegtran -outfile testoutt.jpg testprog.jpg - cmp testimg.ppm testout.ppm - cmp testimg.bmp testout.bmp - cmp testimg.jpg testout.jpg - cmp testimg.ppm testoutp.ppm - cmp testimgp.jpg testoutp.jpg - cmp testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.bcc b/jpeg/makefile.bcc deleted file mode 100755 index d89e09b..0000000 --- a/jpeg/makefile.bcc +++ /dev/null @@ -1,292 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Borland C on MS-DOS or OS/2. -# It works with Borland C++ for DOS, revision 3.0 or later, -# and has been tested with Borland C++ for OS/2. -# Watch out for optimization bugs in the OS/2 compilers --- see notes below! -# Thanks to Tom Wright and Ge' Weijers (original DOS) and -# Ken Porter (OS/2) for this file. - -# Read installation instructions before saying "make" !! - -# Are we under DOS or OS/2? -!if !$d(DOS) && !$d(OS2) -!if $d(__OS2__) -OS2=1 -!else -DOS=1 -!endif -!endif - -# The name of your C compiler: -CC= bcc - -# You may need to adjust these cc options: -!if $d(DOS) -CFLAGS= -O2 -mm -w-par -w-stu -w-ccc -w-rch -!else -CFLAGS= -O1 -w-par -w-stu -w-ccc -w-rch -!endif -# -O2 enables full code optimization (for pre-3.0 Borland C++, use -O -G -Z). -# -O2 is buggy in Borland OS/2 C++ revision 2.0, so use -O1 there for now. -# If you have Borland OS/2 C++ revision 1.0, use -O or no optimization at all. -# -mm selects medium memory model (near data, far code pointers; DOS only!) -# -w-par suppresses warnings about unused function parameters -# -w-stu suppresses warnings about incomplete structures -# -w-ccc suppresses warnings about compile-time-constant conditions -# -w-rch suppresses warnings about unreachable code -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -!if $d(DOS) -LDFLAGS= -mm -# memory model option here must match CFLAGS! -!else -LDFLAGS= -# -lai full-screen app -# -lc case-significant link -!endif - -# Put here the object file name for the correct system-dependent memory -# manager file. -# For DOS, we recommend jmemdos.c and jmemdosa.asm. -# For OS/2, we recommend jmemnobs.c (flat memory!) -# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. -!if $d(DOS) -SYSDEPMEM= jmemdos.obj jmemdosa.obj -SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj -!else -SYSDEPMEM= jmemnobs.obj -SYSDEPMEMLIB= +jmemnobs.obj -!endif - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - - del libjpeg.lib - tlib libjpeg.lib /E /C @&&| -+jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj +jcparam.obj & -+jdatadst.obj +jcinit.obj +jcmaster.obj +jcmarker.obj +jcmainct.obj & -+jcprepct.obj +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & -+jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj +jfdctint.obj +jdapimin.obj & -+jdapistd.obj +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & -+jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj +jdcoefct.obj & -+jdpostct.obj +jddctmgr.obj +jidctfst.obj +jidctflt.obj +jidctint.obj & -+jdsample.obj +jdcolor.obj +jquant1.obj +jquant2.obj +jdmerge.obj & -+jaricom.obj +jcomapi.obj +jutils.obj +jerror.obj +jmemmgr.obj & -$(SYSDEPMEMLIB) -| - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -ecjpeg.exe $(COBJECTS) libjpeg.lib - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -edjpeg.exe $(DOBJECTS) libjpeg.lib - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) -ejpegtran.exe $(TROBJECTS) libjpeg.lib - -rdjpgcom.exe: rdjpgcom.c -!if $d(DOS) - $(CC) -ms -O rdjpgcom.c -!else - $(CC) $(CFLAGS) rdjpgcom.c -!endif - -# On DOS, wrjpgcom needs large model so it can malloc a 64K chunk -wrjpgcom.exe: wrjpgcom.c -!if $d(DOS) - $(CC) -ml -O wrjpgcom.c -!else - $(CC) $(CFLAGS) wrjpgcom.c -!endif - -# This "{}" syntax allows Borland Make to "batch" source files. -# In this way, each run of the compiler can build many modules. -.c.obj: - $(CC) $(CFLAGS) -c{ $<} - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - - del *.obj - - del libjpeg.lib - - del cjpeg.exe - - del djpeg.exe - - del jpegtran.exe - - del rdjpgcom.exe - - del wrjpgcom.exe - - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg -!if $d(DOS) - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg -!else - echo n > n.tmp - comp testimg.ppm testout.ppm < n.tmp - comp testimg.bmp testout.bmp < n.tmp - comp testimg.jpg testout.jpg < n.tmp - comp testimg.ppm testoutp.ppm < n.tmp - comp testimgp.jpg testoutp.jpg < n.tmp - comp testorig.jpg testoutt.jpg < n.tmp - del n.tmp -!endif - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -jmemdosa.obj: jmemdosa.asm - tasm /mx jmemdosa.asm diff --git a/jpeg/makefile.dj b/jpeg/makefile.dj deleted file mode 100755 index 37b6ee7..0000000 --- a/jpeg/makefile.dj +++ /dev/null @@ -1,227 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for DJGPP (Delorie's GNU C port on MS-DOS), v2.0 or later. -# Thanks to Frank J. Donahoe for this version. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= gcc - -# You may need to adjust these cc options: -CFLAGS= -O2 -Wall -I. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -LDFLAGS= -s - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= - -# Put here the object file name for the correct system-dependent memory -# manager file. For DJGPP this is usually jmemnobs.o, but you could -# use jmemname.o if you want to use named temp files instead of swap space. -SYSDEPMEM= jmemnobs.o - -# miscellaneous OS-dependent stuff -# linker -LN= $(CC) -# file deletion command -RM= del -# library (.a) file creation command -AR= ar rc -# second step in .a creation (use "touch" if not needed) -AR2= ranlib - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.a -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.a cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.a: $(LIBOBJECTS) - $(RM) libjpeg.a - $(AR) libjpeg.a $(LIBOBJECTS) - $(AR2) libjpeg.a - -cjpeg.exe: $(COBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o cjpeg.exe $(COBJECTS) libjpeg.a $(LDLIBS) - -djpeg.exe: $(DOBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o djpeg.exe $(DOBJECTS) libjpeg.a $(LDLIBS) - -jpegtran.exe: $(TROBJECTS) libjpeg.a - $(LN) $(LDFLAGS) -o jpegtran.exe $(TROBJECTS) libjpeg.a $(LDLIBS) - -rdjpgcom.exe: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom.exe rdjpgcom.o $(LDLIBS) - -wrjpgcom.exe: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom.exe wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - $(RM) *.o - $(RM) cjpeg.exe - $(RM) djpeg.exe - $(RM) jpegtran.exe - $(RM) rdjpgcom.exe - $(RM) wrjpgcom.exe - $(RM) libjpeg.a - $(RM) testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - $(RM) testout*.* - ./djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - ./djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - ./cjpeg -dct int -outfile testout.jpg testimg.ppm - ./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - ./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - ./jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.manx b/jpeg/makefile.manx deleted file mode 100755 index 471f408..0000000 --- a/jpeg/makefile.manx +++ /dev/null @@ -1,221 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Amiga systems using Manx Aztec C ver 5.x. -# Thanks to D.J. James (djjames@cup.portal.com) for this version. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= cc - -# You may need to adjust these cc options: -# Uncomment for generic 68000 code (will work on any Amiga) -ARCHFLAGS= -sn - -# Uncomment for 68020/68030 code (faster, but won't run on 68000 CPU) -#ARCHFLAGS= -c2 - -CFLAGS= -MC -MD $(ARCHFLAGS) -spfam -r4 - -# Link-time cc options: -LDFLAGS= -g - -# To link any special libraries, add the necessary -l commands here. -LDLIBS= -lml -lcl - -# Put here the object file name for the correct system-dependent memory -# manager file. For Amiga we recommend jmemname.o. -SYSDEPMEM= jmemname.o - -# miscellaneous OS-dependent stuff -# linker -LN= ln -# file deletion command -RM= delete quiet -# library (.lib) file creation command -AR= lb - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.lib cjpeg djpeg jpegtran rdjpgcom wrjpgcom - -libjpeg.lib: $(LIBOBJECTS) - -$(RM) libjpeg.lib - $(AR) libjpeg.lib $(LIBOBJECTS) - -cjpeg: $(COBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.lib $(LDLIBS) - -djpeg: $(DOBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.lib $(LDLIBS) - -jpegtran: $(TROBJECTS) libjpeg.lib - $(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.lib $(LDLIBS) - -rdjpgcom: rdjpgcom.o - $(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS) - -wrjpgcom: wrjpgcom.o - $(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS) - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - -$(RM) *.o cjpeg djpeg jpegtran libjpeg.lib rdjpgcom wrjpgcom - -$(RM) core testout*.* - -test: cjpeg djpeg jpegtran - -$(RM) testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg - cmp testimg.ppm testout.ppm - cmp testimg.bmp testout.bmp - cmp testimg.jpg testout.jpg - cmp testimg.ppm testoutp.ppm - cmp testimgp.jpg testoutp.jpg - cmp testorig.jpg testoutt.jpg - - -jaricom.o: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.o: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.o: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.mc6 b/jpeg/makefile.mc6 deleted file mode 100755 index 1ee83be..0000000 --- a/jpeg/makefile.mc6 +++ /dev/null @@ -1,256 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Microsoft C for MS-DOS, version 6.00A and up. -# Use NMAKE, not Microsoft's brain-damaged MAKE. -# Thanks to Alan Wright and Chris Turner of Olivetti Research Ltd. - -# Read installation instructions before saying "nmake" !! - -# You may need to adjust these compiler options: -CFLAGS = -AM -Oecigt -Gs -W3 -# -AM medium memory model (or use -AS for small model, if you remove features) -# -Oecigt -Gs maximum safe optimisation (-Ol has bugs in MSC 6.00A) -# -W3 warning level 3 -# You might also want to add -G2 if you have an 80286, etc. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Jan-Herman Buining suggests the following switches for MS C 8.0 and a 486: -# CFLAGS = /AM /f- /FPi87 /G3 /Gs /Gy /Ob1 /Oc /Oe /Og /Oi /Ol /On /Oo /Ot \ -# /OV4 /W3 -# except for jquant1.c, which must be compiled with /Oo- to avoid a compiler -# crash. - -# Ingar Steinsland suggests the following switches when building -# a 16-bit Windows DLL: -# CFLAGS = -ALw -Gsw -Zpe -W3 -O2 -Zi -Zd - -# Put here the object file name for the correct system-dependent memory -# manager file. For DOS, we recommend jmemdos.c and jmemdosa.asm. -# (But not for Windows; see install.txt if you use this makefile for Windows.) -SYSDEPMEM= jmemdos.obj jmemdosa.obj -# SYSDEPMEMLIB must list the same files with "+" signs for the librarian. -SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - -# need linker response file because file list > 128 chars -RFILE = libjpeg.ans - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) $(RFILE) - del libjpeg.lib - lib @$(RFILE) - -# linker response file for building libjpeg.lib -$(RFILE) : makefile - del $(RFILE) - echo libjpeg.lib >$(RFILE) -# silly want-to-create-it prompt: - echo y >>$(RFILE) - echo +jcapimin.obj +jcapistd.obj +jcarith.obj +jctrans.obj & >>$(RFILE) - echo +jcparam.obj +jdatadst.obj +jcinit.obj +jcmaster.obj & >>$(RFILE) - echo +jcmarker.obj +jcmainct.obj +jcprepct.obj & >>$(RFILE) - echo +jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj & >>$(RFILE) - echo +jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj & >>$(RFILE) - echo +jfdctint.obj +jdapimin.obj +jdapistd.obj & >>$(RFILE) - echo +jdarith.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj & >>$(RFILE) - echo +jdinput.obj +jdmarker.obj +jdhuff.obj +jdmainct.obj & >>$(RFILE) - echo +jdcoefct.obj +jdpostct.obj +jddctmgr.obj & >>$(RFILE) - echo +jidctfst.obj +jidctflt.obj +jidctint.obj & >>$(RFILE) - echo +jdsample.obj +jdcolor.obj +jquant1.obj & >>$(RFILE) - echo +jquant2.obj +jdmerge.obj +jaricom.obj +jcomapi.obj & >>$(RFILE) - echo +jutils.obj +jerror.obj +jmemmgr.obj & >>$(RFILE) - echo $(SYSDEPMEMLIB) ; >>$(RFILE) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - echo $(COBJECTS) >cjpeg.lst - link /STACK:4096 /EXEPACK @cjpeg.lst, cjpeg.exe, , libjpeg.lib, ; - del cjpeg.lst - -djpeg.exe: $(DOBJECTS) libjpeg.lib - echo $(DOBJECTS) >djpeg.lst - link /STACK:4096 /EXEPACK @djpeg.lst, djpeg.exe, , libjpeg.lib, ; - del djpeg.lst - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - link /STACK:4096 /EXEPACK $(TROBJECTS), jpegtran.exe, , libjpeg.lib, ; - -rdjpgcom.exe: rdjpgcom.c - $(CC) -AS -O -W3 rdjpgcom.c - -# wrjpgcom needs large model so it can malloc a 64K chunk -wrjpgcom.exe: wrjpgcom.c - $(CC) -AL -O -W3 wrjpgcom.c - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: - del *.obj - del libjpeg.lib - del cjpeg.exe - del djpeg.exe - del jpegtran.exe - del rdjpgcom.exe - del wrjpgcom.exe - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -jmemdosa.obj : jmemdosa.asm - masm /mx $*; diff --git a/jpeg/makefile.mms b/jpeg/makefile.mms deleted file mode 100755 index 6019dfa..0000000 --- a/jpeg/makefile.mms +++ /dev/null @@ -1,225 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for use with MMS on Digital VMS systems. -# Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) -# and Tim Bell (tbell@netcom.com) for their help. - -# Read installation instructions before saying "MMS" !! - -# You may need to adjust these cc options: -CFLAGS= $(CFLAGS) /NoDebug /Optimize -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via /Define switches here. -.ifdef ALPHA -OPT= -.else -OPT= ,Sys$Disk:[]MAKVMS.OPT/Option -.endif - -# Put here the object file name for the correct system-dependent memory -# manager file. For Unix this is usually jmemnobs.o, but you may want -# to use jmemansi.o or jmemname.o if you have limited swap space. -SYSDEPMEM= jmemnobs.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.olb -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj -# objectfile lists with commas --- what a crock -COBJLIST= cjpeg.obj,rdppm.obj,rdgif.obj,rdtarga.obj,rdrle.obj,rdbmp.obj,\ - rdswitch.obj,cdjpeg.obj -DOBJLIST= djpeg.obj,wrppm.obj,wrgif.obj,wrtarga.obj,wrrle.obj,wrbmp.obj,\ - rdcolmap.obj,cdjpeg.obj -TROBJLIST= jpegtran.obj,rdswitch.obj,cdjpeg.obj,transupp.obj -LIBOBJLIST= jaricom.obj,jcapimin.obj,jcapistd.obj,jcarith.obj,jctrans.obj,\ - jcparam.obj,jdatadst.obj,jcinit.obj,jcmaster.obj,jcmarker.obj,\ - jcmainct.obj,jcprepct.obj,jccoefct.obj,jccolor.obj,jcsample.obj,\ - jchuff.obj,jcdctmgr.obj,jfdctfst.obj,jfdctflt.obj,jfdctint.obj,\ - jdapimin.obj,jdapistd.obj,jdarith.obj,jdtrans.obj,jdatasrc.obj,\ - jdmaster.obj,jdinput.obj,jdmarker.obj,jdhuff.obj,jdmainct.obj,\ - jdcoefct.obj,jdpostct.obj,jddctmgr.obj,jidctfst.obj,jidctflt.obj,\ - jidctint.obj,jdsample.obj,jdcolor.obj,jquant1.obj,jquant2.obj,\ - jdmerge.obj,jcomapi.obj,jutils.obj,jerror.obj,jmemmgr.obj,$(SYSDEPMEM) - - -.first - @- Define /NoLog Sys Sys$Library - -ALL : libjpeg.olb cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - @ Continue - -libjpeg.olb : $(LIBOBJECTS) - Library /Create libjpeg.olb $(LIBOBJLIST) - -cjpeg.exe : $(COBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = cjpeg.exe $(COBJLIST),libjpeg.olb/Library$(OPT) - -djpeg.exe : $(DOBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = djpeg.exe $(DOBJLIST),libjpeg.olb/Library$(OPT) - -jpegtran.exe : $(TROBJECTS) libjpeg.olb - $(LINK) $(LFLAGS) /Executable = jpegtran.exe $(TROBJLIST),libjpeg.olb/Library$(OPT) - -rdjpgcom.exe : rdjpgcom.obj - $(LINK) $(LFLAGS) /Executable = rdjpgcom.exe rdjpgcom.obj$(OPT) - -wrjpgcom.exe : wrjpgcom.obj - $(LINK) $(LFLAGS) /Executable = wrjpgcom.exe wrjpgcom.obj$(OPT) - -jconfig.h : jconfig.vms - @- Copy jconfig.vms jconfig.h - -clean : - @- Set Protection = Owner:RWED *.*;-1 - @- Set Protection = Owner:RWED *.OBJ - - Purge /NoLog /NoConfirm *.* - - Delete /NoLog /NoConfirm *.OBJ; - -test : cjpeg.exe djpeg.exe jpegtran.exe - mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm - mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg - - Backup /Compare/Log testimg.ppm testout.ppm - - Backup /Compare/Log testimg.bmp testout.bmp - - Backup /Compare/Log testimg.jpg testout.jpg - - Backup /Compare/Log testimg.ppm testoutp.ppm - - Backup /Compare/Log testimgp.jpg testoutp.jpg - - Backup /Compare/Log testorig.jpg testoutt.jpg - - -jaricom.obj : jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj : jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj : jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj : jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj : jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj : jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj : jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj : jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj : jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj : jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj : jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj : jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj : jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj : jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj : jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj : jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj : jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj : jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj : jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj : jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj : jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj : jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj : jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj : jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj : jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj : jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj : jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj : jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj : jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj : jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj : jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj : jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj : jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj : jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj : jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj : jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj : jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj : jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj : jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj : jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj : jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj : jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj : jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj : jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj : jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj : jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj : jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj : jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj : jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj : jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj : cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj : djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj : jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj : rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj : wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj : cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj : rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj : rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj : transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj : rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj : wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj : rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj : wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj : rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj : wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj : rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj : wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj : rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj : wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.sas b/jpeg/makefile.sas deleted file mode 100755 index 252f8fb..0000000 --- a/jpeg/makefile.sas +++ /dev/null @@ -1,259 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is for Amiga systems using SAS C 6.0 and up. -# Thanks to Ed Hanway, Mark Rinfret, and Jim Zepeda. - -# Read installation instructions before saying "make" !! - -# The name of your C compiler: -CC= sc - -# You may need to adjust these cc options: -# Uncomment the following lines for generic 680x0 version -ARCHFLAGS= cpu=any -SUFFIX= - -# Uncomment the following lines for 68030-only version -#ARCHFLAGS= cpu=68030 -#SUFFIX=.030 - -CFLAGS= nostackcheck data=near parms=register optimize $(ARCHFLAGS) \ - ignore=104 ignore=304 ignore=306 -# ignore=104 disables warnings for mismatched const qualifiers -# ignore=304 disables warnings for variables being optimized out -# ignore=306 disables warnings for the inlining of functions -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via define switches here. - -# Link-time cc options: -LDFLAGS= SC SD ND BATCH - -# To link any special libraries, add the necessary commands here. -LDLIBS= LIB:scm.lib LIB:sc.lib - -# Put here the object file name for the correct system-dependent memory -# manager file. For Amiga we recommend jmemname.o. -SYSDEPMEM= jmemname.o - -# miscellaneous OS-dependent stuff -# linker -LN= slink -# file deletion command -RM= delete quiet -# library (.lib) file creation command -AR= oml - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.o jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.o jcapistd.o jcarith.o jctrans.o jcparam.o \ - jdatadst.o jcinit.o jcmaster.o jcmarker.o jcmainct.o jcprepct.o \ - jccoefct.o jccolor.o jcsample.o jchuff.o jcdctmgr.o jfdctfst.o \ - jfdctflt.o jfdctint.o -# decompression library object files -DLIBOBJECTS= jdapimin.o jdapistd.o jdarith.o jdtrans.o jdatasrc.o \ - jdmaster.o jdinput.o jdmarker.o jdhuff.o jdmainct.o \ - jdcoefct.o jdpostct.o jddctmgr.o jidctfst.o jidctflt.o \ - jidctint.o jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \ - cdjpeg.o -DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \ - cdjpeg.o -TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o - - -all: libjpeg.lib cjpeg$(SUFFIX) djpeg$(SUFFIX) jpegtran$(SUFFIX) rdjpgcom$(SUFFIX) wrjpgcom$(SUFFIX) - -# note: do several AR steps to avoid command line length limitations - -libjpeg.lib: $(LIBOBJECTS) - -$(RM) libjpeg.lib - $(AR) libjpeg.lib r $(CLIBOBJECTS) - $(AR) libjpeg.lib r $(DLIBOBJECTS) - $(AR) libjpeg.lib r $(COMOBJECTS) - -cjpeg$(SUFFIX): $(COBJECTS) libjpeg.lib - $(LN) - -# You may want to adjust these compiler options: -CFLAGS= $(cflags) $(cdebug) $(cvars) -I. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time options: -LDFLAGS= $(ldebug) $(conlflags) - -# To link any special libraries, add the necessary commands here. -LDLIBS= $(conlibs) - -# Put here the object file name for the correct system-dependent memory -# manager file. For NT we suggest jmemnobs.obj, which expects the OS to -# provide adequate virtual memory. -SYSDEPMEM= jmemnobs.obj - -# miscellaneous OS-dependent stuff -# file deletion command -RM= del - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c \ - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c \ - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c \ - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c \ - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c \ - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c \ - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c \ - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \ - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \ - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h \ - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \ - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt \ - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc \ - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 \ - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 \ - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 \ - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 \ - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 \ - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 \ - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 \ - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st \ - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas \ - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \ - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \ - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \ - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \ - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \ - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj \ - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj \ - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj \ - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj \ - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj \ - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj \ - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj \ - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \ - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \ - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - -# Template command for compiling .c to .obj -.c.obj: - $(cc) $(CFLAGS) $*.c - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - $(RM) libjpeg.lib - lib -out:libjpeg.lib $(LIBOBJECTS) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:cjpeg.exe $(COBJECTS) libjpeg.lib $(LDLIBS) - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:djpeg.exe $(DOBJECTS) libjpeg.lib $(LDLIBS) - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(link) $(LDFLAGS) -out:jpegtran.exe $(TROBJECTS) libjpeg.lib $(LDLIBS) - -rdjpgcom.exe: rdjpgcom.obj - $(link) $(LDFLAGS) -out:rdjpgcom.exe rdjpgcom.obj $(LDLIBS) - -wrjpgcom.exe: wrjpgcom.obj - $(link) $(LDFLAGS) -out:wrjpgcom.exe wrjpgcom.obj $(LDLIBS) - - -clean: - $(RM) *.obj *.exe libjpeg.lib - $(RM) testout* - -setup-vc6: - ren jconfig.vc jconfig.h - ren makejdsw.vc6 jpeg.dsw - ren makeadsw.vc6 apps.dsw - ren makejmak.vc6 jpeg.mak - ren makejdep.vc6 jpeg.dep - ren makejdsp.vc6 jpeg.dsp - ren makecmak.vc6 cjpeg.mak - ren makecdep.vc6 cjpeg.dep - ren makecdsp.vc6 cjpeg.dsp - ren makedmak.vc6 djpeg.mak - ren makeddep.vc6 djpeg.dep - ren makeddsp.vc6 djpeg.dsp - ren maketmak.vc6 jpegtran.mak - ren maketdep.vc6 jpegtran.dep - ren maketdsp.vc6 jpegtran.dsp - ren makermak.vc6 rdjpgcom.mak - ren makerdep.vc6 rdjpgcom.dep - ren makerdsp.vc6 rdjpgcom.dsp - ren makewmak.vc6 wrjpgcom.mak - ren makewdep.vc6 wrjpgcom.dep - ren makewdsp.vc6 wrjpgcom.dsp - -setup-v10: - ren jconfig.vc jconfig.h - ren makejsln.v10 jpeg.sln - ren makeasln.v10 apps.sln - ren makejvcx.v10 jpeg.vcxproj - ren makejfil.v10 jpeg.vcxproj.filters - ren makecvcx.v10 cjpeg.vcxproj - ren makecfil.v10 cjpeg.vcxproj.filters - ren makedvcx.v10 djpeg.vcxproj - ren makedfil.v10 djpeg.vcxproj.filters - ren maketvcx.v10 jpegtran.vcxproj - ren maketfil.v10 jpegtran.vcxproj.filters - ren makervcx.v10 rdjpgcom.vcxproj - ren makerfil.v10 rdjpgcom.vcxproj.filters - ren makewvcx.v10 wrjpgcom.vcxproj - ren makewfil.v10 wrjpgcom.vcxproj.filters - -test: - IF EXIST testout* $(RM) testout* - .\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - .\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - .\cjpeg -dct int -outfile testout.jpg testimg.ppm - .\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - .\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - .\jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - -test-build: - IF EXIST testout* $(RM) testout* - .\djpeg\Release\djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - .\djpeg\Release\djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - .\cjpeg\Release\cjpeg -dct int -outfile testout.jpg testimg.ppm - .\djpeg\Release\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - .\cjpeg\Release\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - .\jpegtran\Release\jpegtran -outfile testoutt.jpg testprog.jpg - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makefile.vms b/jpeg/makefile.vms deleted file mode 100755 index a07d070..0000000 --- a/jpeg/makefile.vms +++ /dev/null @@ -1,142 +0,0 @@ -$! Makefile for Independent JPEG Group's software -$! -$! This is a command procedure for Digital VMS systems that do not have MMS. -$! It builds the JPEG software by brute force, recompiling everything whether -$! or not it is necessary. It then runs the basic self-test. -$! Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu) -$! and Tim Bell (tbell@netcom.com) for their help. -$! -$! Read installation instructions before running this!! -$! -$ If F$Mode () .eqs. "INTERACTIVE" -$ Then -$ VERIFY = F$Verify (0) -$ Else -$ VERIFY = F$Verify (1) -$ EndIf -$ On Control_Y Then GoTo End -$ On Error Then GoTo End -$ -$ If F$GetSyi ("HW_MODEL") .gt. 1023 -$ Then -$ OPT = "" -$ Else -$ OPT = ",Sys$Disk:[]makvms.opt/Option" -$ EndIf -$ -$ DoCompile := CC /NoDebug /Optimize /NoList -$! -$ DoCompile jaricom.c -$ DoCompile jcapimin.c -$ DoCompile jcapistd.c -$ DoCompile jcarith.c -$ DoCompile jctrans.c -$ DoCompile jcparam.c -$ DoCompile jdatadst.c -$ DoCompile jcinit.c -$ DoCompile jcmaster.c -$ DoCompile jcmarker.c -$ DoCompile jcmainct.c -$ DoCompile jcprepct.c -$ DoCompile jccoefct.c -$ DoCompile jccolor.c -$ DoCompile jcsample.c -$ DoCompile jchuff.c -$ DoCompile jcdctmgr.c -$ DoCompile jfdctfst.c -$ DoCompile jfdctflt.c -$ DoCompile jfdctint.c -$ DoCompile jdapimin.c -$ DoCompile jdapistd.c -$ DoCompile jdarith.c -$ DoCompile jdtrans.c -$ DoCompile jdatasrc.c -$ DoCompile jdmaster.c -$ DoCompile jdinput.c -$ DoCompile jdmarker.c -$ DoCompile jdhuff.c -$ DoCompile jdmainct.c -$ DoCompile jdcoefct.c -$ DoCompile jdpostct.c -$ DoCompile jddctmgr.c -$ DoCompile jidctfst.c -$ DoCompile jidctflt.c -$ DoCompile jidctint.c -$ DoCompile jdsample.c -$ DoCompile jdcolor.c -$ DoCompile jquant1.c -$ DoCompile jquant2.c -$ DoCompile jdmerge.c -$ DoCompile jcomapi.c -$ DoCompile jutils.c -$ DoCompile jerror.c -$ DoCompile jmemmgr.c -$ DoCompile jmemnobs.c -$! -$ Library /Create libjpeg.olb jaricom.obj,jcapimin.obj,jcapistd.obj, - - jcarith.obj,jctrans.obj,jcparam.obj,jdatadst.obj,jcinit.obj, - - jcmaster.obj,jcmarker.obj,jcmainct.obj,jcprepct.obj,jccoefct.obj, - - jccolor.obj,jcsample.obj,jchuff.obj,jcdctmgr.obj,jfdctfst.obj, - - jfdctflt.obj,jfdctint.obj,jdapimin.obj,jdapistd.obj,jdarith.obj, - - jdtrans.obj,jdatasrc.obj,jdmaster.obj,jdinput.obj,jdmarker.obj, - - jdhuff.obj,jdmainct.obj,jdcoefct.obj,jdpostct.obj,jddctmgr.obj, - - jidctfst.obj,jidctflt.obj,jidctint.obj,jdsample.obj,jdcolor.obj, - - jquant1.obj,jquant2.obj,jdmerge.obj,jcomapi.obj,jutils.obj, - - jerror.obj,jmemmgr.obj,jmemnobs.obj -$! -$ DoCompile cjpeg.c -$ DoCompile rdppm.c -$ DoCompile rdgif.c -$ DoCompile rdtarga.c -$ DoCompile rdrle.c -$ DoCompile rdbmp.c -$ DoCompile rdswitch.c -$ DoCompile cdjpeg.c -$! -$ Link /NoMap /Executable = cjpeg.exe cjpeg.obj,rdppm.obj,rdgif.obj, - - rdtarga.obj,rdrle.obj,rdbmp.obj,rdswitch.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile djpeg.c -$ DoCompile wrppm.c -$ DoCompile wrgif.c -$ DoCompile wrtarga.c -$ DoCompile wrrle.c -$ DoCompile wrbmp.c -$ DoCompile rdcolmap.c -$ DoCompile cdjpeg.c -$! -$ Link /NoMap /Executable = djpeg.exe djpeg.obj,wrppm.obj,wrgif.obj, - - wrtarga.obj,wrrle.obj,wrbmp.obj,rdcolmap.obj,cdjpeg.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile jpegtran.c -$ DoCompile rdswitch.c -$ DoCompile cdjpeg.c -$ DoCompile transupp.c -$! -$ Link /NoMap /Executable = jpegtran.exe jpegtran.obj,rdswitch.obj, - - cdjpeg.obj,transupp.obj,libjpeg.olb/Library'OPT' -$! -$ DoCompile rdjpgcom.c -$ Link /NoMap /Executable = rdjpgcom.exe rdjpgcom.obj'OPT' -$! -$ DoCompile wrjpgcom.c -$ Link /NoMap /Executable = wrjpgcom.exe wrjpgcom.obj'OPT' -$! -$! Run the self-test -$! -$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg -$ mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg -$ mcr sys$disk:[]cjpeg -dct int -outfile testout.jpg testimg.ppm -$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg -$ mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm -$ mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg -$ Backup /Compare/Log testimg.ppm testout.ppm -$ Backup /Compare/Log testimg.bmp testout.bmp -$ Backup /Compare/Log testimg.jpg testout.jpg -$ Backup /Compare/Log testimg.ppm testoutp.ppm -$ Backup /Compare/Log testimgp.jpg testoutp.jpg -$ Backup /Compare/Log testorig.jpg testoutt.jpg -$! -$End: -$ If Verify Then Set Verify -$ Exit diff --git a/jpeg/makefile.wat b/jpeg/makefile.wat deleted file mode 100755 index a3e652b..0000000 --- a/jpeg/makefile.wat +++ /dev/null @@ -1,240 +0,0 @@ -# Makefile for Independent JPEG Group's software - -# This makefile is suitable for Watcom C/C++ 10.0 on MS-DOS (using -# dos4g extender), OS/2, and Windows NT console mode. -# Thanks to Janos Haide, jhaide@btrvtech.com. - -# Read installation instructions before saying "wmake" !! - -# Uncomment line for desired system -SYSTEM=DOS -#SYSTEM=OS2 -#SYSTEM=NT - -# The name of your C compiler: -CC= wcl386 - -# You may need to adjust these cc options: -CFLAGS= -4r -ort -wx -zq -bt=$(SYSTEM) -# Caution: avoid -ol or -ox; these generate bad code with 10.0 or 10.0a. -# Generally, we recommend defining any configuration symbols in jconfig.h, -# NOT via -D switches here. - -# Link-time cc options: -!ifeq SYSTEM DOS -LDFLAGS= -zq -l=dos4g -!else ifeq SYSTEM OS2 -LDFLAGS= -zq -l=os2v2 -!else ifeq SYSTEM NT -LDFLAGS= -zq -l=nt -!endif - -# Put here the object file name for the correct system-dependent memory -# manager file. jmemnobs should work fine for dos4g or OS/2 environment. -SYSDEPMEM= jmemnobs.obj - -# End of configurable options. - - -# source files: JPEG library proper -LIBSOURCES= jaricom.c jcapimin.c jcapistd.c jcarith.c jccoefct.c jccolor.c & - jcdctmgr.c jchuff.c jcinit.c jcmainct.c jcmarker.c jcmaster.c & - jcomapi.c jcparam.c jcprepct.c jcsample.c jctrans.c jdapimin.c & - jdapistd.c jdarith.c jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c & - jddctmgr.c jdhuff.c jdinput.c jdmainct.c jdmarker.c jdmaster.c & - jdmerge.c jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c & - jfdctfst.c jfdctint.c jidctflt.c jidctfst.c jidctint.c jquant1.c & - jquant2.c jutils.c jmemmgr.c -# memmgr back ends: compile only one of these into a working library -SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c -# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom -APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c & - rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c & - rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c -SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES) -# files included by source files -INCLUDES= jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h jpegint.h & - jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h -# documentation, test, and support files -DOCS= README install.txt usage.txt cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 & - wrjpgcom.1 wizard.txt example.c libjpeg.txt structure.txt & - coderules.txt filelist.txt change.log -MKFILES= configure Makefile.in makefile.ansi makefile.unix makefile.bcc & - makefile.mc6 makefile.dj makefile.wat makefile.vc makejdsw.vc6 & - makeadsw.vc6 makejdep.vc6 makejdsp.vc6 makejmak.vc6 makecdep.vc6 & - makecdsp.vc6 makecmak.vc6 makeddep.vc6 makeddsp.vc6 makedmak.vc6 & - maketdep.vc6 maketdsp.vc6 maketmak.vc6 makerdep.vc6 makerdsp.vc6 & - makermak.vc6 makewdep.vc6 makewdsp.vc6 makewmak.vc6 makejsln.v10 & - makeasln.v10 makejvcx.v10 makejfil.v10 makecvcx.v10 makecfil.v10 & - makedvcx.v10 makedfil.v10 maketvcx.v10 maketfil.v10 makervcx.v10 & - makerfil.v10 makewvcx.v10 makewfil.v10 makeproj.mac makcjpeg.st & - makdjpeg.st makljpeg.st maktjpeg.st makefile.manx makefile.sas & - makefile.mms makefile.vms makvms.opt -CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat & - jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas & - jconfig.vms -CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing -OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm & - libjpeg.map -TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg & - testimgp.jpg -DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) & - $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES) -# library object files common to compression and decompression -COMOBJECTS= jaricom.obj jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM) -# compression library object files -CLIBOBJECTS= jcapimin.obj jcapistd.obj jcarith.obj jctrans.obj jcparam.obj & - jdatadst.obj jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj & - jcprepct.obj jccoefct.obj jccolor.obj jcsample.obj jchuff.obj & - jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj -# decompression library object files -DLIBOBJECTS= jdapimin.obj jdapistd.obj jdarith.obj jdtrans.obj jdatasrc.obj & - jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdmainct.obj & - jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj jidctflt.obj & - jidctint.obj jdsample.obj jdcolor.obj jquant1.obj jquant2.obj & - jdmerge.obj -# These objectfiles are included in libjpeg.lib -LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS) -# object files for sample applications (excluding library files) -COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj & - rdswitch.obj cdjpeg.obj -DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj & - rdcolmap.obj cdjpeg.obj -TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj - - -all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe - -libjpeg.lib: $(LIBOBJECTS) - - del libjpeg.lib - * wlib -n libjpeg.lib $(LIBOBJECTS) - -cjpeg.exe: $(COBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(COBJECTS) libjpeg.lib - -djpeg.exe: $(DOBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(DOBJECTS) libjpeg.lib - -jpegtran.exe: $(TROBJECTS) libjpeg.lib - $(CC) $(LDFLAGS) $(TROBJECTS) libjpeg.lib - -rdjpgcom.exe: rdjpgcom.c - $(CC) $(CFLAGS) $(LDFLAGS) rdjpgcom.c - -wrjpgcom.exe: wrjpgcom.c - $(CC) $(CFLAGS) $(LDFLAGS) wrjpgcom.c - -.c.obj: - $(CC) $(CFLAGS) -c $< - -jconfig.h: jconfig.txt - echo You must prepare a system-dependent jconfig.h file. - echo Please read the installation directions in install.txt. - exit 1 - -clean: .SYMBOLIC - - del *.obj - - del libjpeg.lib - - del cjpeg.exe - - del djpeg.exe - - del jpegtran.exe - - del rdjpgcom.exe - - del wrjpgcom.exe - - del testout*.* - -test: cjpeg.exe djpeg.exe jpegtran.exe .SYMBOLIC - - del testout*.* - djpeg -dct int -ppm -outfile testout.ppm testorig.jpg - djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg - cjpeg -dct int -outfile testout.jpg testimg.ppm - djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg - cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm - jpegtran -outfile testoutt.jpg testprog.jpg -!ifeq SYSTEM DOS - fc /b testimg.ppm testout.ppm - fc /b testimg.bmp testout.bmp - fc /b testimg.jpg testout.jpg - fc /b testimg.ppm testoutp.ppm - fc /b testimgp.jpg testoutp.jpg - fc /b testorig.jpg testoutt.jpg -!else - echo n > n.tmp - comp testimg.ppm testout.ppm < n.tmp - comp testimg.bmp testout.bmp < n.tmp - comp testimg.jpg testout.jpg < n.tmp - comp testimg.ppm testoutp.ppm < n.tmp - comp testimgp.jpg testoutp.jpg < n.tmp - comp testorig.jpg testoutt.jpg < n.tmp - del n.tmp -!endif - - -jaricom.obj: jaricom.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcarith.obj: jcarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdarith.obj: jdarith.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h -jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h -jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h -jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h -jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h -cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h -jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h -rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h -wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h -cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h -rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h -wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h diff --git a/jpeg/makejdep.vc6 b/jpeg/makejdep.vc6 deleted file mode 100755 index d373edf..0000000 --- a/jpeg/makejdep.vc6 +++ /dev/null @@ -1,423 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpeg.mak - -.\jaricom.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcapimin.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcapistd.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcarith.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jccoefct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jccolor.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcdctmgr.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jchuff.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcinit.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmainct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmarker.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcmaster.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcomapi.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcparam.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcprepct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jcsample.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jctrans.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdapimin.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdapistd.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdarith.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdatadst.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jdatasrc.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jdcoefct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdcolor.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jddctmgr.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdhuff.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdinput.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmainct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmarker.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmaster.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdmerge.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdpostct.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdsample.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jdtrans.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jerror.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - ".\jversion.h"\ - - -.\jfdctflt.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jfdctfst.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jfdctint.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctflt.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctfst.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jidctint.c : \ - ".\jconfig.h"\ - ".\jdct.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jmemmgr.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmemsys.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jmemnobs.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmemsys.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jquant1.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jquant2.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - - -.\jutils.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - diff --git a/jpeg/makejdsp.vc6 b/jpeg/makejdsp.vc6 deleted file mode 100755 index 2576fc2..0000000 --- a/jpeg/makejdsp.vc6 +++ /dev/null @@ -1,285 +0,0 @@ -# Microsoft Developer Studio Project File - Name="jpeg" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Static Library" 0x0104 - -CFG=jpeg - Win32 -!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "jpeg.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. 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-Microsoft Visual Studio Solution File, Format Version 11.00 -# Visual C++ Express 2010 -Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jpeg", "jpeg.vcxproj", "{019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Release|Win32 = Release|Win32 - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.ActiveCfg = Release|Win32 - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1}.Release|Win32.Build.0 = Release|Win32 - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/jpeg/makejvcx.v10 b/jpeg/makejvcx.v10 deleted file mode 100755 index c7a898e..0000000 --- a/jpeg/makejvcx.v10 +++ /dev/null @@ -1,112 +0,0 @@ - - - - - Release - Win32 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Disabled - false - - - - - {019DBD2A-273D-4BA4-BF86-B5EFE2ED76B1} - Win32Proj - jpeg - - - - StaticLibrary - false - true - Unicode - - - - - - - - - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_LIB;_CRT_SECURE_NO_WARNINGS - true - true - - - Windows - true - true - true - - - - - - \ No newline at end of file diff --git a/jpeg/makeproj.mac b/jpeg/makeproj.mac deleted file mode 100755 index e5b5102..0000000 --- a/jpeg/makeproj.mac +++ /dev/null @@ -1,213 +0,0 @@ --- --- makeproj.mac --- --- This AppleScript builds Code Warrior PRO Release 2 project files for the --- libjpeg library as well as the test programs 'cjpeg', 'djpeg', 'jpegtran'. --- (We'd distribute real project files, except they're not text --- and would create maintenance headaches.) --- --- The script then compiles and links the library and the test programs. --- NOTE: if you haven't already created a 'jconfig.h' file, the script --- automatically copies 'jconfig.mac' to 'jconfig.h'. --- --- To use this script, you must have AppleScript 1.1 or later installed --- and a suitable AppleScript editor like Script Editor or Script Debugger --- (http://www.latenightsw.com). Open this file with your AppleScript --- editor and execute the "run" command to build the projects. --- --- Thanks to Dan Sears and Don Agro for this script. --- Questions about this script can be addressed to dogpark@interlog.com --- - -on run - - choose folder with prompt ">>> Select IJG source folder <<<" - set ijg_folder to result - - choose folder with prompt ">>> Select MetroWerks folder <<<" - set cw_folder to result - - -- if jconfig.h doesn't already exist, copy jconfig.mac - - tell application "Finder" - if not (exists file "jconfig.h" of ijg_folder) then - duplicate {file "jconfig.mac" of folder ijg_folder} - select file "jconfig.mac copy" of folder ijg_folder - set name of selection to "jconfig.h" - end if - end tell - - tell application "CodeWarrior IDE 2.1" - with timeout of 10000 seconds - - -- create libjpeg project - - activate - Create Project (ijg_folder as string) & "libjpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"libjpeg"} - Set Preferences of panel "PPC Project" to {File Name:"libjpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "PPC Project" to {Project Type:library} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "jaricom.c" To Segment 1 - Add Files (ijg_folder as string) & "jcapimin.c" To Segment 1 - Add Files (ijg_folder as string) & "jcapistd.c" To Segment 1 - Add Files (ijg_folder as string) & "jcarith.c" To Segment 1 - Add Files (ijg_folder as string) & "jctrans.c" To Segment 1 - Add Files (ijg_folder as string) & "jcparam.c" To Segment 1 - Add Files (ijg_folder as string) & "jdatadst.c" To Segment 1 - Add Files (ijg_folder as string) & "jcinit.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmaster.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmarker.c" To Segment 1 - Add Files (ijg_folder as string) & "jcmainct.c" To Segment 1 - Add Files (ijg_folder as string) & "jcprepct.c" To Segment 1 - Add Files (ijg_folder as string) & "jccoefct.c" To Segment 1 - Add Files (ijg_folder as string) & "jccolor.c" To Segment 1 - Add Files (ijg_folder as string) & "jcsample.c" To Segment 1 - Add Files (ijg_folder as string) & "jchuff.c" To Segment 1 - Add Files (ijg_folder as string) & "jcdctmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctfst.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctflt.c" To Segment 1 - Add Files (ijg_folder as string) & "jfdctint.c" To Segment 1 - Add Files (ijg_folder as string) & "jdapimin.c" To Segment 1 - Add Files (ijg_folder as string) & "jdapistd.c" To Segment 1 - Add Files (ijg_folder as string) & "jdarith.c" To Segment 1 - Add Files (ijg_folder as string) & "jdtrans.c" To Segment 1 - Add Files (ijg_folder as string) & "jdatasrc.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmaster.c" To Segment 1 - Add Files (ijg_folder as string) & "jdinput.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmarker.c" To Segment 1 - Add Files (ijg_folder as string) & "jdhuff.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmainct.c" To Segment 1 - Add Files (ijg_folder as string) & "jdcoefct.c" To Segment 1 - Add Files (ijg_folder as string) & "jdpostct.c" To Segment 1 - Add Files (ijg_folder as string) & "jddctmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctfst.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctflt.c" To Segment 1 - Add Files (ijg_folder as string) & "jidctint.c" To Segment 1 - Add Files (ijg_folder as string) & "jdsample.c" To Segment 1 - Add Files (ijg_folder as string) & "jdcolor.c" To Segment 1 - Add Files (ijg_folder as string) & "jquant1.c" To Segment 1 - Add Files (ijg_folder as string) & "jquant2.c" To Segment 1 - Add Files (ijg_folder as string) & "jdmerge.c" To Segment 1 - Add Files (ijg_folder as string) & "jcomapi.c" To Segment 1 - Add Files (ijg_folder as string) & "jutils.c" To Segment 1 - Add Files (ijg_folder as string) & "jerror.c" To Segment 1 - Add Files (ijg_folder as string) & "jmemmgr.c" To Segment 1 - Add Files (ijg_folder as string) & "jmemmac.c" To Segment 1 - - -- compile and link the library - - Make Project - Close Project - - -- create cjpeg project - - activate - Create Project (ijg_folder as string) & "cjpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"cjpeg"} - Set Preferences of panel "PPC Project" to {File Name:"cjpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "cjpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "rdppm.c" To Segment 1 - Add Files (ijg_folder as string) & "rdgif.c" To Segment 1 - Add Files (ijg_folder as string) & "rdtarga.c" To Segment 1 - Add Files (ijg_folder as string) & "rdrle.c" To Segment 1 - Add Files (ijg_folder as string) & "rdbmp.c" To Segment 1 - Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link cjpeg - - Make Project - Close Project - - -- create djpeg project - - activate - Create Project (ijg_folder as string) & "djpeg.proj" - Set Preferences of panel "Target Settings" to {Target Name:"djpeg"} - Set Preferences of panel "PPC Project" to {File Name:"djpeg"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "djpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "wrppm.c" To Segment 1 - Add Files (ijg_folder as string) & "wrgif.c" To Segment 1 - Add Files (ijg_folder as string) & "wrtarga.c" To Segment 1 - Add Files (ijg_folder as string) & "wrrle.c" To Segment 1 - Add Files (ijg_folder as string) & "wrbmp.c" To Segment 1 - Add Files (ijg_folder as string) & "rdcolmap.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link djpeg - - Make Project - Close Project - - -- create jpegtran project - - activate - Create Project (ijg_folder as string) & "jpegtran.proj" - Set Preferences of panel "Target Settings" to {Target Name:"jpegtran"} - Set Preferences of panel "PPC Project" to {File Name:"jpegtran"} - Set Preferences of panel "Target Settings" to {Linker:"MacOS PPC Linker"} - Set Preferences of panel "C/C++ Compiler" to {ANSI Strict:true} - Set Preferences of panel "C/C++ Compiler" to {Enums Always Ints:true} - Set Preferences of panel "PPC Codegen" to {Struct Alignment:PowerPC} - Set Preferences of panel "PPC Linker" to {Generate SYM File:false} - - Add Files (ijg_folder as string) & "jpegtran.c" To Segment 1 - Add Files (ijg_folder as string) & "rdswitch.c" To Segment 1 - Add Files (ijg_folder as string) & "cdjpeg.c" To Segment 1 - Add Files (ijg_folder as string) & "transupp.c" To Segment 1 - - Add Files (ijg_folder as string) & "libjpeg" To Segment 2 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL C.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:Metrowerks Standard Library:MSL C:Bin:MSL SIOUX.PPC.Lib" To Segment 3 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:Runtime:Runtime PPC:MSL RuntimePPC.Lib" To Segment 3 - - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:InterfaceLib" To Segment 4 - Add Files (cw_folder as string) & "Metrowerks CodeWarrior:MacOS Support:Libraries:MacOS Common:MathLib" To Segment 4 - - -- compile and link jpegtran - - Make Project - Close Project - - quit - - end timeout - end tell -end run diff --git a/jpeg/makerdep.vc6 b/jpeg/makerdep.vc6 deleted file mode 100755 index d2dac9d..0000000 --- a/jpeg/makerdep.vc6 +++ /dev/null @@ -1,6 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von rdjpgcom.mak - -.\rdjpgcom.c : \ - ".\jconfig.h"\ - ".\jinclude.h"\ - diff --git a/jpeg/makerdsp.vc6 b/jpeg/makerdsp.vc6 deleted file mode 100755 index 6efb442..0000000 --- a/jpeg/makerdsp.vc6 +++ /dev/null @@ -1,78 +0,0 @@ -# Microsoft Developer Studio Project File - Name="rdjpgcom" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Console Application" 0x0103 - -CFG=rdjpgcom - Win32 -!MESSAGE Dies ist kein gültiges Makefile. Zum Erstellen dieses Projekts mit NMAKE -!MESSAGE verwenden Sie den Befehl "Makefile exportieren" und führen Sie den Befehl -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak". -!MESSAGE -!MESSAGE Sie können beim Ausführen von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" -!MESSAGE -!MESSAGE Für die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE - -# Begin Project -# PROP AllowPerConfigDependencies 0 -# PROP Scc_ProjName "" -# PROP Scc_LocalPath "" -CPP=cl.exe -RSC=rc.exe -# PROP BASE Use_MFC 0 -# PROP BASE Use_Debug_Libraries 0 -# PROP BASE Output_Dir ".\rdjpgcom\Release" -# PROP BASE Intermediate_Dir ".\rdjpgcom\Release" -# PROP BASE Target_Dir ".\rdjpgcom" -# PROP Use_MFC 0 -# PROP Use_Debug_Libraries 0 -# PROP Output_Dir ".\rdjpgcom\Release" -# PROP Intermediate_Dir ".\rdjpgcom\Release" -# PROP Ignore_Export_Lib 0 -# PROP Target_Dir ".\rdjpgcom" -# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /c -# ADD CPP /nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /YX /FD /c -# ADD BASE RSC /l 0x409 /d "NDEBUG" -# ADD RSC /l 0x409 /d "NDEBUG" -BSC32=bscmake.exe -# ADD BASE BSC32 /nologo -# ADD BSC32 /nologo -LINK32=link.exe -# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 -# ADD LINK32 Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 -# Begin Target - -# Name "rdjpgcom - Win32" -# Begin Group "Quellcodedateien" - -# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;for;f90" -# Begin Source File - -SOURCE=.\rdjpgcom.c -# End Source File -# End Group -# Begin Group "Header-Dateien" - -# PROP Default_Filter "h;hpp;hxx;hm;inl;fi;fd" -# Begin Source File - -SOURCE=.\jconfig.h -# End Source File -# Begin Source File - -SOURCE=.\jinclude.h -# End Source File -# End Group -# Begin Group "Ressourcendateien" - -# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe" -# End Group -# End Target -# End Project diff --git a/jpeg/makerfil.v10 b/jpeg/makerfil.v10 deleted file mode 100755 index 4660d49..0000000 --- a/jpeg/makerfil.v10 +++ /dev/null @@ -1,30 +0,0 @@ - - - - - {4FC737F1-C7A5-4376-A066-2A32D752A2FF} - cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx - - - {93995380-89BD-4b04-88EB-625FBE52EBFB} - h;hpp;hxx;hm;inl;inc;xsd - - - {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} - rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms - - - - - Header Files - - - Header Files - - - - - Source Files - - - \ No newline at end of file diff --git a/jpeg/makermak.vc6 b/jpeg/makermak.vc6 deleted file mode 100755 index b54ea7d..0000000 --- a/jpeg/makermak.vc6 +++ /dev/null @@ -1,110 +0,0 @@ -# Microsoft Developer Studio Generated NMAKE File, Based on rdjpgcom.dsp -!IF "$(CFG)" == "" -CFG=rdjpgcom - Win32 -!MESSAGE Keine Konfiguration angegeben. rdjpgcom - Win32 wird als Standard verwendet. -!ENDIF - -!IF "$(CFG)" != "rdjpgcom - Win32" -!MESSAGE Ungltige Konfiguration "$(CFG)" angegeben. -!MESSAGE Sie k”nnen beim Ausfhren von NMAKE eine Konfiguration angeben -!MESSAGE durch Definieren des Makros CFG in der Befehlszeile. Zum Beispiel: -!MESSAGE -!MESSAGE NMAKE /f "rdjpgcom.mak" CFG="rdjpgcom - Win32" -!MESSAGE -!MESSAGE Fr die Konfiguration stehen zur Auswahl: -!MESSAGE -!MESSAGE "rdjpgcom - Win32" (basierend auf "Win32 (x86) Console Application") -!MESSAGE -!ERROR Eine ungltige Konfiguration wurde angegeben. -!ENDIF - -!IF "$(OS)" == "Windows_NT" -NULL= -!ELSE -NULL=nul -!ENDIF - -CPP=cl.exe -RSC=rc.exe -OUTDIR=.\rdjpgcom\Release -INTDIR=.\rdjpgcom\Release -# Begin Custom Macros -OutDir=.\rdjpgcom\Release -# End Custom Macros - -ALL : "$(OUTDIR)\rdjpgcom.exe" - - -CLEAN : - -@erase "$(INTDIR)\rdjpgcom.obj" - -@erase "$(INTDIR)\vc60.idb" - -@erase "$(OUTDIR)\rdjpgcom.exe" - -"$(OUTDIR)" : - if not exist "$(OUTDIR)/$(NULL)" mkdir "$(OUTDIR)" - -BSC32=bscmake.exe -BSC32_FLAGS=/nologo /o"$(OUTDIR)\rdjpgcom.bsc" -BSC32_SBRS= \ - -LINK32=link.exe -LINK32_FLAGS=Release\jpeg.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:no /pdb:"$(OUTDIR)\rdjpgcom.pdb" /machine:I386 /out:"$(OUTDIR)\rdjpgcom.exe" -LINK32_OBJS= \ - "$(INTDIR)\rdjpgcom.obj" - -"$(OUTDIR)\rdjpgcom.exe" : "$(OUTDIR)" $(DEF_FILE) $(LINK32_OBJS) - $(LINK32) @<< - $(LINK32_FLAGS) $(LINK32_OBJS) -<< - -CPP_PROJ=/nologo /G6 /MT /W3 /GX /Ox /Oa /Ob2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /Fp"$(INTDIR)\rdjpgcom.pch" /YX /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\\" /FD /c - -.c{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.obj:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.c{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cpp{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - -.cxx{$(INTDIR)}.sbr:: - $(CPP) @<< - $(CPP_PROJ) $< -<< - - -!IF "$(NO_EXTERNAL_DEPS)" != "1" -!IF EXISTS("rdjpgcom.dep") -!INCLUDE "rdjpgcom.dep" -!ELSE -!MESSAGE Warning: cannot find "rdjpgcom.dep" -!ENDIF -!ENDIF - - -!IF "$(CFG)" == "rdjpgcom - Win32" -SOURCE=.\rdjpgcom.c - -"$(INTDIR)\rdjpgcom.obj" : $(SOURCE) "$(INTDIR)" - - - -!ENDIF - diff --git a/jpeg/makervcx.v10 b/jpeg/makervcx.v10 deleted file mode 100755 index f34017f..0000000 --- a/jpeg/makervcx.v10 +++ /dev/null @@ -1,62 +0,0 @@ - - - - - Release - Win32 - - - - {C81513DB-78DC-46BC-BC98-82E745203976} - Win32Proj - rdjpgcom - - - - Application - false - true - Unicode - - - - - - - - - - false - $(ProjectName)\$(Configuration)\ - $(ProjectName)\$(Configuration)\ - - - - Level3 - NotUsing - Full - true - false - WIN32;NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS - true - true - 4996 - - - Console - true - true - true - - - - - - - - - - - - - \ No newline at end of file diff --git a/jpeg/maketdep.vc6 b/jpeg/maketdep.vc6 deleted file mode 100755 index acebae9..0000000 --- a/jpeg/maketdep.vc6 +++ /dev/null @@ -1,43 +0,0 @@ -# Microsoft Developer Studio erstellte Abhängigkeitsdatei, einbezogen von jpegtran.mak - -.\cdjpeg.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\jpegtran.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - ".\jversion.h"\ - ".\transupp.h"\ - - -.\rdswitch.c : \ - ".\cderror.h"\ - ".\cdjpeg.h"\ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpeglib.h"\ - - -.\transupp.c : \ - ".\jconfig.h"\ - ".\jerror.h"\ - ".\jinclude.h"\ - ".\jmorecfg.h"\ - ".\jpegint.h"\ - ".\jpeglib.h"\ - ".\transupp.h"\ - diff --git a/jpeg/maketdsp.vc6 b/jpeg/maketdsp.vc6 deleted file mode 100755 index 42e7312..0000000 --- a/jpeg/maketdsp.vc6 +++ /dev/null @@ -1,122 +0,0 @@ -# Microsoft Developer Studio Project File - Name="jpegtran" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** NICHT BEARBEITEN ** - -# TARGTYPE "Win32 (x86) Console Application" 0x0103 - -CFG=jpegtran - Win32 -!MESSAGE Dies ist kein gültiges Makefile. 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Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to libjpeg.prj. -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -libjpeg.lib -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -.L[-J] ; link new Obj-format (so we get a library) -= -; * * * * List of modules * * * * -jaricom.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jccoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jccolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcdctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jchuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcinit.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcomapi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcparam.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcprepct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jcsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jctrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdapimin.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdapistd.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdarith.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdatadst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) -jdatasrc.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h) -jdcoefct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdcolor.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jddctmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jdhuff.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdinput.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmainct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmarker.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmaster.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdmerge.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdpostct.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdsample.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jdtrans.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jerror.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jversion.h,jerror.h) -jfdctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jfdctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jfdctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctflt.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctfst.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jidctint.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jdct.h) -jquant1.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jquant2.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jutils.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h) -jmemmgr.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) -jmemansi.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,jmemsys.h) diff --git a/jpeg/maktjpeg.st b/jpeg/maktjpeg.st deleted file mode 100755 index 43f078a..0000000 --- a/jpeg/maktjpeg.st +++ /dev/null @@ -1,30 +0,0 @@ -; Project file for Independent JPEG Group's software -; -; This project file is for Atari ST/STE/TT systems using Pure C or Turbo C. -; Thanks to Frank Moehle, B. Setzepfandt, and Guido Vollbeding. -; -; To use this file, rename it to jpegtran.prj. -; If you are using Turbo C, change filenames beginning with "pc..." to "tc..." -; Read installation instructions before trying to make the program! -; -; -; * * * Output file * * * -jpegtran.ttp -; -; * * * COMPILER OPTIONS * * * -.C[-P] ; absolute calls -.C[-M] ; and no string merging, folks -.C[-w-cln] ; no "constant is long" warnings -.C[-w-par] ; no "parameter xxxx unused" -.C[-w-rch] ; no "unreachable code" -.C[-wsig] ; warn if significant digits may be lost -= -; * * * * List of modules * * * * -pcstart.o -jpegtran.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h,transupp.h,jversion.h) -cdjpeg.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -rdswitch.c (cdjpeg.h,jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jerror.h,cderror.h) -transupp.c (jinclude.h,jconfig.h,jpeglib.h,jmorecfg.h,jpegint.h,jerror.h,transupp.h) -libjpeg.lib ; built by libjpeg.prj -pcstdlib.lib ; standard library -pcextlib.lib ; extended library diff --git a/jpeg/makvms.opt b/jpeg/makvms.opt deleted file mode 100755 index 675e8fe..0000000 --- a/jpeg/makvms.opt +++ /dev/null @@ -1,4 +0,0 @@ -! A pointer to the VAX/VMS C Run-Time Shareable Library. -! This file is needed by makefile.mms and makefile.vms, -! but only for the older VAX C compiler. DEC C does not need it. -Sys$Library:VAXCRTL.EXE /Share diff --git a/jpeg/missing b/jpeg/missing deleted file mode 100755 index 28055d2..0000000 --- a/jpeg/missing +++ /dev/null @@ -1,376 +0,0 @@ -#! /bin/sh -# Common stub for a few missing GNU programs while installing. - -scriptversion=2009-04-28.21; # UTC - -# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006, -# 2008, 2009 Free Software Foundation, Inc. -# Originally by Fran,cois Pinard , 1996. - -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Check the \`README' file, - it often tells you about the needed prerequisites for installing - this package. You may also peek at any GNU archive site, in case - some other package would contain this missing \`$1' program." - exit 1 - ;; -esac - -exit 0 - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC" -# time-stamp-end: "; # UTC" -# End: diff --git a/jpeg/rdbmp.c b/jpeg/rdbmp.c deleted file mode 100755 index fd773d4..0000000 --- a/jpeg/rdbmp.c +++ /dev/null @@ -1,480 +0,0 @@ -/* - * rdbmp.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * Modified 2009-2010 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Microsoft "BMP" - * format (MS Windows 3.x, OS/2 1.x, and OS/2 2.x flavors). - * Currently, only 8-bit and 24-bit images are supported, not 1-bit or - * 4-bit (feeding such low-depth images into JPEG would be silly anyway). - * Also, we don't support RLE-compressed files. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed BMP format). - * - * This code contributed by James Arthur Boucher. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef BMP_SUPPORTED - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* Private version of data source object */ - -typedef struct _bmp_source_struct * bmp_source_ptr; - -typedef struct _bmp_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - j_compress_ptr cinfo; /* back link saves passing separate parm */ - - JSAMPARRAY colormap; /* BMP colormap (converted to my format) */ - - jvirt_sarray_ptr whole_image; /* Needed to reverse row order */ - JDIMENSION source_row; /* Current source row number */ - JDIMENSION row_width; /* Physical width of scanlines in file */ - - int bits_per_pixel; /* remembers 8- or 24-bit format */ -} bmp_source_struct; - - -LOCAL(int) -read_byte (bmp_source_ptr sinfo) -/* Read next byte from BMP file */ -{ - register FILE *infile = sinfo->pub.input_file; - register int c; - - if ((c = getc(infile)) == EOF) - ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); - return c; -} - - -LOCAL(void) -read_colormap (bmp_source_ptr sinfo, int cmaplen, int mapentrysize) -/* Read the colormap from a BMP file */ -{ - int i; - - switch (mapentrysize) { - case 3: - /* BGR format (occurs in OS/2 files) */ - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - } - break; - case 4: - /* BGR0 format (occurs in MS Windows files) */ - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - (void) read_byte(sinfo); - } - break; - default: - ERREXIT(sinfo->cinfo, JERR_BMP_BADCMAP); - break; - } -} - - -/* - * Read one row of pixels. - * The image has been read into the whole_image array, but is otherwise - * unprocessed. We must read it out in top-to-bottom row order, and if - * it is an 8-bit image, we must expand colormapped pixels to 24bit format. - */ - -METHODDEF(JDIMENSION) -get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit colormap indexes */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - register JSAMPARRAY colormap = source->colormap; - JSAMPARRAY image_ptr; - register int t; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - - /* Expand the colormap indexes to real data */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - t = GETJSAMPLE(*inptr++); - *outptr++ = colormap[0][t]; /* can omit GETJSAMPLE() safely */ - *outptr++ = colormap[1][t]; - *outptr++ = colormap[2][t]; - } - - return 1; -} - - -METHODDEF(JDIMENSION) -get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 24-bit pixels */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - - /* Transfer data. Note source values are in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - outptr += 3; - } - - return 1; -} - - -METHODDEF(JDIMENSION) -get_32bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 32-bit pixels */ -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - - /* Fetch next row from virtual array */ - source->source_row--; - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source->source_row, (JDIMENSION) 1, FALSE); - /* Transfer data. Note source values are in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = image_ptr[0]; - outptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - inptr++; /* skip the 4th byte (Alpha channel) */ - outptr += 3; - } - - return 1; -} - - -/* - * This method loads the image into whole_image during the first call on - * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call - * get_8bit_row, get_24bit_row, or get_32bit_row on subsequent calls. - */ - -METHODDEF(JDIMENSION) -preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - register FILE *infile = source->pub.input_file; - register int c; - register JSAMPROW out_ptr; - JSAMPARRAY image_ptr; - JDIMENSION row, col; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Read the data into a virtual array in input-file row order. */ - for (row = 0; row < cinfo->image_height; row++) { - if (progress != NULL) { - progress->pub.pass_counter = (long) row; - progress->pub.pass_limit = (long) cinfo->image_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - row, (JDIMENSION) 1, TRUE); - out_ptr = image_ptr[0]; - for (col = source->row_width; col > 0; col--) { - /* inline copy of read_byte() for speed */ - if ((c = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_INPUT_EOF); - *out_ptr++ = (JSAMPLE) c; - } - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Set up to read from the virtual array in top-to-bottom order */ - switch (source->bits_per_pixel) { - case 8: - source->pub.get_pixel_rows = get_8bit_row; - break; - case 24: - source->pub.get_pixel_rows = get_24bit_row; - break; - case 32: - source->pub.get_pixel_rows = get_32bit_row; - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - } - source->source_row = cinfo->image_height; - - /* And read the first row */ - return (*source->pub.get_pixel_rows) (cinfo, sinfo); -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - bmp_source_ptr source = (bmp_source_ptr) sinfo; - U_CHAR bmpfileheader[14]; - U_CHAR bmpinfoheader[64]; -#define GET_2B(array,offset) ((unsigned int) UCH(array[offset]) + \ - (((unsigned int) UCH(array[offset+1])) << 8)) -#define GET_4B(array,offset) ((INT32) UCH(array[offset]) + \ - (((INT32) UCH(array[offset+1])) << 8) + \ - (((INT32) UCH(array[offset+2])) << 16) + \ - (((INT32) UCH(array[offset+3])) << 24)) - INT32 bfOffBits; - INT32 headerSize; - INT32 biWidth; - INT32 biHeight; - unsigned int biPlanes; - INT32 biCompression; - INT32 biXPelsPerMeter,biYPelsPerMeter; - INT32 biClrUsed = 0; - int mapentrysize = 0; /* 0 indicates no colormap */ - INT32 bPad; - JDIMENSION row_width; - - /* Read and verify the bitmap file header */ - if (! ReadOK(source->pub.input_file, bmpfileheader, 14)) - ERREXIT(cinfo, JERR_INPUT_EOF); - if (GET_2B(bmpfileheader,0) != 0x4D42) /* 'BM' */ - ERREXIT(cinfo, JERR_BMP_NOT); - bfOffBits = (INT32) GET_4B(bmpfileheader,10); - /* We ignore the remaining fileheader fields */ - - /* The infoheader might be 12 bytes (OS/2 1.x), 40 bytes (Windows), - * or 64 bytes (OS/2 2.x). Check the first 4 bytes to find out which. - */ - if (! ReadOK(source->pub.input_file, bmpinfoheader, 4)) - ERREXIT(cinfo, JERR_INPUT_EOF); - headerSize = (INT32) GET_4B(bmpinfoheader,0); - if (headerSize < 12 || headerSize > 64) - ERREXIT(cinfo, JERR_BMP_BADHEADER); - if (! ReadOK(source->pub.input_file, bmpinfoheader+4, headerSize-4)) - ERREXIT(cinfo, JERR_INPUT_EOF); - - switch ((int) headerSize) { - case 12: - /* Decode OS/2 1.x header (Microsoft calls this a BITMAPCOREHEADER) */ - biWidth = (INT32) GET_2B(bmpinfoheader,4); - biHeight = (INT32) GET_2B(bmpinfoheader,6); - biPlanes = GET_2B(bmpinfoheader,8); - source->bits_per_pixel = (int) GET_2B(bmpinfoheader,10); - - switch (source->bits_per_pixel) { - case 8: /* colormapped image */ - mapentrysize = 3; /* OS/2 uses RGBTRIPLE colormap */ - TRACEMS2(cinfo, 1, JTRC_BMP_OS2_MAPPED, (int) biWidth, (int) biHeight); - break; - case 24: /* RGB image */ - TRACEMS2(cinfo, 1, JTRC_BMP_OS2, (int) biWidth, (int) biHeight); - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - break; - } - break; - case 40: - case 64: - /* Decode Windows 3.x header (Microsoft calls this a BITMAPINFOHEADER) */ - /* or OS/2 2.x header, which has additional fields that we ignore */ - biWidth = GET_4B(bmpinfoheader,4); - biHeight = GET_4B(bmpinfoheader,8); - biPlanes = GET_2B(bmpinfoheader,12); - source->bits_per_pixel = (int) GET_2B(bmpinfoheader,14); - biCompression = GET_4B(bmpinfoheader,16); - biXPelsPerMeter = GET_4B(bmpinfoheader,24); - biYPelsPerMeter = GET_4B(bmpinfoheader,28); - biClrUsed = GET_4B(bmpinfoheader,32); - /* biSizeImage, biClrImportant fields are ignored */ - - switch (source->bits_per_pixel) { - case 8: /* colormapped image */ - mapentrysize = 4; /* Windows uses RGBQUAD colormap */ - TRACEMS2(cinfo, 1, JTRC_BMP_MAPPED, (int) biWidth, (int) biHeight); - break; - case 24: /* RGB image */ - TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); - break; - case 32: /* RGB image + Alpha channel */ - TRACEMS2(cinfo, 1, JTRC_BMP, (int) biWidth, (int) biHeight); - break; - default: - ERREXIT(cinfo, JERR_BMP_BADDEPTH); - break; - } - if (biCompression != 0) - ERREXIT(cinfo, JERR_BMP_COMPRESSED); - - if (biXPelsPerMeter > 0 && biYPelsPerMeter > 0) { - /* Set JFIF density parameters from the BMP data */ - cinfo->X_density = (UINT16) (biXPelsPerMeter/100); /* 100 cm per meter */ - cinfo->Y_density = (UINT16) (biYPelsPerMeter/100); - cinfo->density_unit = 2; /* dots/cm */ - } - break; - default: - ERREXIT(cinfo, JERR_BMP_BADHEADER); - return; - } - - if (biWidth <= 0 || biHeight <= 0) - ERREXIT(cinfo, JERR_BMP_EMPTY); - if (biPlanes != 1) - ERREXIT(cinfo, JERR_BMP_BADPLANES); - - /* Compute distance to bitmap data --- will adjust for colormap below */ - bPad = bfOffBits - (headerSize + 14); - - /* Read the colormap, if any */ - if (mapentrysize > 0) { - if (biClrUsed <= 0) - biClrUsed = 256; /* assume it's 256 */ - else if (biClrUsed > 256) - ERREXIT(cinfo, JERR_BMP_BADCMAP); - /* Allocate space to store the colormap */ - source->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) biClrUsed, (JDIMENSION) 3); - /* and read it from the file */ - read_colormap(source, (int) biClrUsed, mapentrysize); - /* account for size of colormap */ - bPad -= biClrUsed * mapentrysize; - } - - /* Skip any remaining pad bytes */ - if (bPad < 0) /* incorrect bfOffBits value? */ - ERREXIT(cinfo, JERR_BMP_BADHEADER); - while (--bPad >= 0) { - (void) read_byte(source); - } - - /* Compute row width in file, including padding to 4-byte boundary */ - if (source->bits_per_pixel == 24) - row_width = (JDIMENSION) (biWidth * 3); - else if (source->bits_per_pixel == 32) - row_width = (JDIMENSION) (biWidth * 4); - else - row_width = (JDIMENSION) biWidth; - while ((row_width & 3) != 0) row_width++; - source->row_width = row_width; - - /* Allocate space for inversion array, prepare for preload pass */ - source->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - row_width, (JDIMENSION) biHeight, (JDIMENSION) 1); - source->pub.get_pixel_rows = preload_image; - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - - /* Allocate one-row buffer for returned data */ - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (biWidth * 3), (JDIMENSION) 1); - source->pub.buffer_height = 1; - - cinfo->in_color_space = JCS_RGB; - cinfo->input_components = 3; - cinfo->data_precision = 8; - cinfo->image_width = (JDIMENSION) biWidth; - cinfo->image_height = (JDIMENSION) biHeight; -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_bmp (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for BMP format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_bmp (j_compress_ptr cinfo) -{ - bmp_source_ptr source; - - /* Create module interface object */ - source = (bmp_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(bmp_source_struct)); - source->cinfo = cinfo; /* make back link for subroutines */ - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_bmp; - source->pub.finish_input = finish_input_bmp; - - return (cjpeg_source_ptr) source; -} - -#endif /* BMP_SUPPORTED */ diff --git a/jpeg/rdcolmap.c b/jpeg/rdcolmap.c deleted file mode 100755 index 42b3437..0000000 --- a/jpeg/rdcolmap.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * rdcolmap.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file implements djpeg's "-map file" switch. It reads a source image - * and constructs a colormap to be supplied to the JPEG decompressor. - * - * Currently, these file formats are supported for the map file: - * GIF: the contents of the GIF's global colormap are used. - * PPM (either text or raw flavor): the entire file is read and - * each unique pixel value is entered in the map. - * Note that reading a large PPM file will be horrendously slow. - * Typically, a PPM-format map file should contain just one pixel - * of each desired color. Such a file can be extracted from an - * ordinary image PPM file with ppmtomap(1). - * - * Rescaling a PPM that has a maxval unequal to MAXJSAMPLE is not - * currently implemented. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef QUANT_2PASS_SUPPORTED /* otherwise can't quantize to supplied map */ - -/* Portions of this code are based on the PBMPLUS library, which is: -** -** Copyright (C) 1988 by Jef Poskanzer. -** -** Permission to use, copy, modify, and distribute this software and its -** documentation for any purpose and without fee is hereby granted, provided -** that the above copyright notice appear in all copies and that both that -** copyright notice and this permission notice appear in supporting -** documentation. This software is provided "as is" without express or -** implied warranty. -*/ - - -/* - * Add a (potentially) new color to the color map. - */ - -LOCAL(void) -add_map_entry (j_decompress_ptr cinfo, int R, int G, int B) -{ - JSAMPROW colormap0 = cinfo->colormap[0]; - JSAMPROW colormap1 = cinfo->colormap[1]; - JSAMPROW colormap2 = cinfo->colormap[2]; - int ncolors = cinfo->actual_number_of_colors; - int index; - - /* Check for duplicate color. */ - for (index = 0; index < ncolors; index++) { - if (GETJSAMPLE(colormap0[index]) == R && - GETJSAMPLE(colormap1[index]) == G && - GETJSAMPLE(colormap2[index]) == B) - return; /* color is already in map */ - } - - /* Check for map overflow. */ - if (ncolors >= (MAXJSAMPLE+1)) - ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, (MAXJSAMPLE+1)); - - /* OK, add color to map. */ - colormap0[ncolors] = (JSAMPLE) R; - colormap1[ncolors] = (JSAMPLE) G; - colormap2[ncolors] = (JSAMPLE) B; - cinfo->actual_number_of_colors++; -} - - -/* - * Extract color map from a GIF file. - */ - -LOCAL(void) -read_gif_map (j_decompress_ptr cinfo, FILE * infile) -{ - int header[13]; - int i, colormaplen; - int R, G, B; - - /* Initial 'G' has already been read by read_color_map */ - /* Read the rest of the GIF header and logical screen descriptor */ - for (i = 1; i < 13; i++) { - if ((header[i] = getc(infile)) == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - } - - /* Verify GIF Header */ - if (header[1] != 'I' || header[2] != 'F') - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* There must be a global color map. */ - if ((header[10] & 0x80) == 0) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* OK, fetch it. */ - colormaplen = 2 << (header[10] & 0x07); - - for (i = 0; i < colormaplen; i++) { - R = getc(infile); - G = getc(infile); - B = getc(infile); - if (R == EOF || G == EOF || B == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - add_map_entry(cinfo, - R << (BITS_IN_JSAMPLE-8), - G << (BITS_IN_JSAMPLE-8), - B << (BITS_IN_JSAMPLE-8)); - } -} - - -/* Support routines for reading PPM */ - - -LOCAL(int) -pbm_getc (FILE * infile) -/* Read next char, skipping over any comments */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(infile); - if (ch == '#') { - do { - ch = getc(infile); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(unsigned int) -read_pbm_integer (j_decompress_ptr cinfo, FILE * infile) -/* Read an unsigned decimal integer from the PPM file */ -/* Swallows one trailing character after the integer */ -/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ -/* This should not be a problem in practice. */ -{ - register int ch; - register unsigned int val; - - /* Skip any leading whitespace */ - do { - ch = pbm_getc(infile); - if (ch == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); - - if (ch < '0' || ch > '9') - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - val = ch - '0'; - while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { - val *= 10; - val += ch - '0'; - } - return val; -} - - -/* - * Extract color map from a PPM file. - */ - -LOCAL(void) -read_ppm_map (j_decompress_ptr cinfo, FILE * infile) -{ - int c; - unsigned int w, h, maxval, row, col; - int R, G, B; - - /* Initial 'P' has already been read by read_color_map */ - c = getc(infile); /* save format discriminator for a sec */ - - /* while we fetch the remaining header info */ - w = read_pbm_integer(cinfo, infile); - h = read_pbm_integer(cinfo, infile); - maxval = read_pbm_integer(cinfo, infile); - - if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - /* For now, we don't support rescaling from an unusual maxval. */ - if (maxval != (unsigned int) MAXJSAMPLE) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - - switch (c) { - case '3': /* it's a text-format PPM file */ - for (row = 0; row < h; row++) { - for (col = 0; col < w; col++) { - R = read_pbm_integer(cinfo, infile); - G = read_pbm_integer(cinfo, infile); - B = read_pbm_integer(cinfo, infile); - add_map_entry(cinfo, R, G, B); - } - } - break; - - case '6': /* it's a raw-format PPM file */ - for (row = 0; row < h; row++) { - for (col = 0; col < w; col++) { - R = getc(infile); - G = getc(infile); - B = getc(infile); - if (R == EOF || G == EOF || B == EOF) - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - add_map_entry(cinfo, R, G, B); - } - } - break; - - default: - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - break; - } -} - - -/* - * Main entry point from djpeg.c. - * Input: opened input file (from file name argument on command line). - * Output: colormap and actual_number_of_colors fields are set in cinfo. - */ - -GLOBAL(void) -read_color_map (j_decompress_ptr cinfo, FILE * infile) -{ - /* Allocate space for a color map of maximum supported size. */ - cinfo->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) (MAXJSAMPLE+1), (JDIMENSION) 3); - cinfo->actual_number_of_colors = 0; /* initialize map to empty */ - - /* Read first byte to determine file format */ - switch (getc(infile)) { - case 'G': - read_gif_map(cinfo, infile); - break; - case 'P': - read_ppm_map(cinfo, infile); - break; - default: - ERREXIT(cinfo, JERR_BAD_CMAP_FILE); - break; - } -} - -#endif /* QUANT_2PASS_SUPPORTED */ diff --git a/jpeg/rdgif.c b/jpeg/rdgif.c deleted file mode 100755 index b27c167..0000000 --- a/jpeg/rdgif.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * rdgif.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in GIF format. - * - ***************************************************************************** - * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * - * the ability to read GIF files has been removed from the IJG distribution. * - * Sorry about that. * - ***************************************************************************** - * - * We are required to state that - * "The Graphics Interchange Format(c) is the Copyright property of - * CompuServe Incorporated. GIF(sm) is a Service Mark property of - * CompuServe Incorporated." - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef GIF_SUPPORTED - -/* - * The module selection routine for GIF format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_gif (j_compress_ptr cinfo) -{ - fprintf(stderr, "GIF input is unsupported for legal reasons. Sorry.\n"); - exit(EXIT_FAILURE); - return NULL; /* keep compiler happy */ -} - -#endif /* GIF_SUPPORTED */ diff --git a/jpeg/rdjpgcom.1 b/jpeg/rdjpgcom.1 deleted file mode 100755 index 97611df..0000000 --- a/jpeg/rdjpgcom.1 +++ /dev/null @@ -1,63 +0,0 @@ -.TH RDJPGCOM 1 "02 April 2009" -.SH NAME -rdjpgcom \- display text comments from a JPEG file -.SH SYNOPSIS -.B rdjpgcom -[ -.B \-raw -] -[ -.B \-verbose -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B rdjpgcom -reads the named JPEG/JFIF file, or the standard input if no file is named, -and prints any text comments found in the file on the standard output. -.PP -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. -.SH OPTIONS -.TP -.B \-raw -Normally -.B rdjpgcom -escapes non-printable characters in comments, for security reasons. -This option avoids that. -.PP -.B \-verbose -Causes -.B rdjpgcom -to also display the JPEG image dimensions. -.PP -Switch names may be abbreviated, and are not case sensitive. -.SH HINTS -.B rdjpgcom -does not depend on the IJG JPEG library. Its source code is intended as an -illustration of the minimum amount of code required to parse a JPEG file -header correctly. -.PP -In -.B \-verbose -mode, -.B rdjpgcom -will also attempt to print the contents of any "APP12" markers as text. -Some digital cameras produce APP12 markers containing useful textual -information. If you like, you can modify the source code to print -other APPn marker types as well. -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR jpegtran (1), -.BR wrjpgcom (1) -.SH AUTHOR -Independent JPEG Group diff --git a/jpeg/rdjpgcom.c b/jpeg/rdjpgcom.c deleted file mode 100755 index 3719154..0000000 --- a/jpeg/rdjpgcom.c +++ /dev/null @@ -1,515 +0,0 @@ -/* - * rdjpgcom.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * Modified 2009 by Bill Allombert, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a very simple stand-alone application that displays - * the text in COM (comment) markers in a JFIF file. - * This may be useful as an example of the minimum logic needed to parse - * JPEG markers. - */ - -#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ -#include "jinclude.h" /* get auto-config symbols, */ - -#ifdef HAVE_LOCALE_H -#include /* Bill Allombert: use locale for isprint */ -#endif -#include /* to declare isupper(), tolower() */ -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif - - -/* - * These macros are used to read the input file. - * To reuse this code in another application, you might need to change these. - */ - -static FILE * infile; /* input JPEG file */ - -/* Return next input byte, or EOF if no more */ -#define NEXTBYTE() getc(infile) - - -/* Error exit handler */ -#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) - - -/* Read one byte, testing for EOF */ -static int -read_1_byte (void) -{ - int c; - - c = NEXTBYTE(); - if (c == EOF) - ERREXIT("Premature EOF in JPEG file"); - return c; -} - -/* Read 2 bytes, convert to unsigned int */ -/* All 2-byte quantities in JPEG markers are MSB first */ -static unsigned int -read_2_bytes (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - if (c1 == EOF) - ERREXIT("Premature EOF in JPEG file"); - c2 = NEXTBYTE(); - if (c2 == EOF) - ERREXIT("Premature EOF in JPEG file"); - return (((unsigned int) c1) << 8) + ((unsigned int) c2); -} - - -/* - * JPEG markers consist of one or more 0xFF bytes, followed by a marker - * code byte (which is not an FF). Here are the marker codes of interest - * in this program. (See jdmarker.c for a more complete list.) - */ - -#define M_SOF0 0xC0 /* Start Of Frame N */ -#define M_SOF1 0xC1 /* N indicates which compression process */ -#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ -#define M_SOF3 0xC3 -#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ -#define M_EOI 0xD9 /* End Of Image (end of datastream) */ -#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ -#define M_APP0 0xE0 /* Application-specific marker, type N */ -#define M_APP12 0xEC /* (we don't bother to list all 16 APPn's) */ -#define M_COM 0xFE /* COMment */ - - -/* - * Find the next JPEG marker and return its marker code. - * We expect at least one FF byte, possibly more if the compressor used FFs - * to pad the file. - * There could also be non-FF garbage between markers. The treatment of such - * garbage is unspecified; we choose to skip over it but emit a warning msg. - * NB: this routine must not be used after seeing SOS marker, since it will - * not deal correctly with FF/00 sequences in the compressed image data... - */ - -static int -next_marker (void) -{ - int c; - int discarded_bytes = 0; - - /* Find 0xFF byte; count and skip any non-FFs. */ - c = read_1_byte(); - while (c != 0xFF) { - discarded_bytes++; - c = read_1_byte(); - } - /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs - * are legal as pad bytes, so don't count them in discarded_bytes. - */ - do { - c = read_1_byte(); - } while (c == 0xFF); - - if (discarded_bytes != 0) { - fprintf(stderr, "Warning: garbage data found in JPEG file\n"); - } - - return c; -} - - -/* - * Read the initial marker, which should be SOI. - * For a JFIF file, the first two bytes of the file should be literally - * 0xFF M_SOI. To be more general, we could use next_marker, but if the - * input file weren't actually JPEG at all, next_marker might read the whole - * file and then return a misleading error message... - */ - -static int -first_marker (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - c2 = NEXTBYTE(); - if (c1 != 0xFF || c2 != M_SOI) - ERREXIT("Not a JPEG file"); - return c2; -} - - -/* - * Most types of marker are followed by a variable-length parameter segment. - * This routine skips over the parameters for any marker we don't otherwise - * want to process. - * Note that we MUST skip the parameter segment explicitly in order not to - * be fooled by 0xFF bytes that might appear within the parameter segment; - * such bytes do NOT introduce new markers. - */ - -static void -skip_variable (void) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - (void) read_1_byte(); - length--; - } -} - - -/* - * Process a COM marker. - * We want to print out the marker contents as legible text; - * we must guard against non-text junk and varying newline representations. - */ - -static void -process_COM (int raw) -{ - unsigned int length; - int ch; - int lastch = 0; - - /* Bill Allombert: set locale properly for isprint */ -#ifdef HAVE_LOCALE_H - setlocale(LC_CTYPE, ""); -#endif - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - - while (length > 0) { - ch = read_1_byte(); - if (raw) { - putc(ch, stdout); - /* Emit the character in a readable form. - * Nonprintables are converted to \nnn form, - * while \ is converted to \\. - * Newlines in CR, CR/LF, or LF form will be printed as one newline. - */ - } else if (ch == '\r') { - printf("\n"); - } else if (ch == '\n') { - if (lastch != '\r') - printf("\n"); - } else if (ch == '\\') { - printf("\\\\"); - } else if (isprint(ch)) { - putc(ch, stdout); - } else { - printf("\\%03o", ch); - } - lastch = ch; - length--; - } - printf("\n"); - - /* Bill Allombert: revert to C locale */ -#ifdef HAVE_LOCALE_H - setlocale(LC_CTYPE, "C"); -#endif -} - - -/* - * Process a SOFn marker. - * This code is only needed if you want to know the image dimensions... - */ - -static void -process_SOFn (int marker) -{ - unsigned int length; - unsigned int image_height, image_width; - int data_precision, num_components; - const char * process; - int ci; - - length = read_2_bytes(); /* usual parameter length count */ - - data_precision = read_1_byte(); - image_height = read_2_bytes(); - image_width = read_2_bytes(); - num_components = read_1_byte(); - - switch (marker) { - case M_SOF0: process = "Baseline"; break; - case M_SOF1: process = "Extended sequential"; break; - case M_SOF2: process = "Progressive"; break; - case M_SOF3: process = "Lossless"; break; - case M_SOF5: process = "Differential sequential"; break; - case M_SOF6: process = "Differential progressive"; break; - case M_SOF7: process = "Differential lossless"; break; - case M_SOF9: process = "Extended sequential, arithmetic coding"; break; - case M_SOF10: process = "Progressive, arithmetic coding"; break; - case M_SOF11: process = "Lossless, arithmetic coding"; break; - case M_SOF13: process = "Differential sequential, arithmetic coding"; break; - case M_SOF14: process = "Differential progressive, arithmetic coding"; break; - case M_SOF15: process = "Differential lossless, arithmetic coding"; break; - default: process = "Unknown"; break; - } - - printf("JPEG image is %uw * %uh, %d color components, %d bits per sample\n", - image_width, image_height, num_components, data_precision); - printf("JPEG process: %s\n", process); - - if (length != (unsigned int) (8 + num_components * 3)) - ERREXIT("Bogus SOF marker length"); - - for (ci = 0; ci < num_components; ci++) { - (void) read_1_byte(); /* Component ID code */ - (void) read_1_byte(); /* H, V sampling factors */ - (void) read_1_byte(); /* Quantization table number */ - } -} - - -/* - * Parse the marker stream until SOS or EOI is seen; - * display any COM markers. - * While the companion program wrjpgcom will always insert COM markers before - * SOFn, other implementations might not, so we scan to SOS before stopping. - * If we were only interested in the image dimensions, we would stop at SOFn. - * (Conversely, if we only cared about COM markers, there would be no need - * for special code to handle SOFn; we could treat it like other markers.) - */ - -static int -scan_JPEG_header (int verbose, int raw) -{ - int marker; - - /* Expect SOI at start of file */ - if (first_marker() != M_SOI) - ERREXIT("Expected SOI marker first"); - - /* Scan miscellaneous markers until we reach SOS. */ - for (;;) { - marker = next_marker(); - switch (marker) { - /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, - * treated as SOFn. C4 in particular is actually DHT. - */ - case M_SOF0: /* Baseline */ - case M_SOF1: /* Extended sequential, Huffman */ - case M_SOF2: /* Progressive, Huffman */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_SOF9: /* Extended sequential, arithmetic */ - case M_SOF10: /* Progressive, arithmetic */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - if (verbose) - process_SOFn(marker); - else - skip_variable(); - break; - - case M_SOS: /* stop before hitting compressed data */ - return marker; - - case M_EOI: /* in case it's a tables-only JPEG stream */ - return marker; - - case M_COM: - process_COM(raw); - break; - - case M_APP12: - /* Some digital camera makers put useful textual information into - * APP12 markers, so we print those out too when in -verbose mode. - */ - if (verbose) { - printf("APP12 contains:\n"); - process_COM(raw); - } else - skip_variable(); - break; - - default: /* Anything else just gets skipped */ - skip_variable(); /* we assume it has a parameter count... */ - break; - } - } /* end loop */ -} - - -/* Command line parsing code */ - -static const char * progname; /* program name for error messages */ - - -static void -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "rdjpgcom displays any textual comments in a JPEG file.\n"); - - fprintf(stderr, "Usage: %s [switches] [inputfile]\n", progname); - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -raw Display non-printable characters in comments (unsafe)\n"); - fprintf(stderr, " -verbose Also display dimensions of JPEG image\n"); - - exit(EXIT_FAILURE); -} - - -static int -keymatch (char * arg, const char * keyword, int minchars) -/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ -/* keyword is the constant keyword (must be lower case already), */ -/* minchars is length of minimum legal abbreviation. */ -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return 0; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return 0; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return 0; - return 1; /* A-OK */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - int argn; - char * arg; - int verbose = 0, raw = 0; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "rdjpgcom"; /* in case C library doesn't provide it */ - - /* Parse switches, if any */ - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (arg[0] != '-') - break; /* not switch, must be file name */ - arg++; /* advance over '-' */ - if (keymatch(arg, "verbose", 1)) { - verbose++; - } else if (keymatch(arg, "raw", 1)) { - raw = 1; - } else - usage(); - } - - /* Open the input file. */ - /* Unix style: expect zero or one file name */ - if (argn < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } - if (argn < argc) { - if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdin\n", progname); - exit(EXIT_FAILURE); - } -#else - infile = stdin; -#endif - } - - /* Scan the JPEG headers. */ - (void) scan_JPEG_header(verbose, raw); - - /* All done. */ - exit(EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpeg/rdppm.c b/jpeg/rdppm.c deleted file mode 100755 index a757022..0000000 --- a/jpeg/rdppm.c +++ /dev/null @@ -1,459 +0,0 @@ -/* - * rdppm.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * Modified 2009 by Bill Allombert, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in PPM/PGM format. - * The extended 2-byte-per-sample raw PPM/PGM formats are supported. - * The PBMPLUS library is NOT required to compile this software - * (but it is highly useful as a set of PPM image manipulation programs). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed PPM format). - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef PPM_SUPPORTED - - -/* Portions of this code are based on the PBMPLUS library, which is: -** -** Copyright (C) 1988 by Jef Poskanzer. -** -** Permission to use, copy, modify, and distribute this software and its -** documentation for any purpose and without fee is hereby granted, provided -** that the above copyright notice appear in all copies and that both that -** copyright notice and this permission notice appear in supporting -** documentation. This software is provided "as is" without express or -** implied warranty. -*/ - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* - * On most systems, reading individual bytes with getc() is drastically less - * efficient than buffering a row at a time with fread(). On PCs, we must - * allocate the buffer in near data space, because we are assuming small-data - * memory model, wherein fread() can't reach far memory. If you need to - * process very wide images on a PC, you might have to compile in large-memory - * model, or else replace fread() with a getc() loop --- which will be much - * slower. - */ - - -/* Private version of data source object */ - -typedef struct { - struct cjpeg_source_struct pub; /* public fields */ - - U_CHAR *iobuffer; /* non-FAR pointer to I/O buffer */ - JSAMPROW pixrow; /* FAR pointer to same */ - size_t buffer_width; /* width of I/O buffer */ - JSAMPLE *rescale; /* => maxval-remapping array, or NULL */ -} ppm_source_struct; - -typedef ppm_source_struct * ppm_source_ptr; - - -LOCAL(int) -pbm_getc (FILE * infile) -/* Read next char, skipping over any comments */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(infile); - if (ch == '#') { - do { - ch = getc(infile); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(unsigned int) -read_pbm_integer (j_compress_ptr cinfo, FILE * infile) -/* Read an unsigned decimal integer from the PPM file */ -/* Swallows one trailing character after the integer */ -/* Note that on a 16-bit-int machine, only values up to 64k can be read. */ -/* This should not be a problem in practice. */ -{ - register int ch; - register unsigned int val; - - /* Skip any leading whitespace */ - do { - ch = pbm_getc(infile); - if (ch == EOF) - ERREXIT(cinfo, JERR_INPUT_EOF); - } while (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r'); - - if (ch < '0' || ch > '9') - ERREXIT(cinfo, JERR_PPM_NONNUMERIC); - - val = ch - '0'; - while ((ch = pbm_getc(infile)) >= '0' && ch <= '9') { - val *= 10; - val += ch - '0'; - } - return val; -} - - -/* - * Read one row of pixels. - * - * We provide several different versions depending on input file format. - * In all cases, input is scaled to the size of JSAMPLE. - * - * A really fast path is provided for reading byte/sample raw files with - * maxval = MAXJSAMPLE, which is the normal case for 8-bit data. - */ - - -METHODDEF(JDIMENSION) -get_text_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading text-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - FILE * infile = source->pub.input_file; - register JSAMPROW ptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_text_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading text-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - FILE * infile = source->pub.input_file; - register JSAMPROW ptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - *ptr++ = rescale[read_pbm_integer(cinfo, infile)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_scaled_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[UCH(*bufferptr++)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_scaled_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - *ptr++ = rescale[UCH(*bufferptr++)]; - *ptr++ = rescale[UCH(*bufferptr++)]; - *ptr++ = rescale[UCH(*bufferptr++)]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_raw_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-byte-format files with maxval = MAXJSAMPLE. - * In this case we just read right into the JSAMPLE buffer! - * Note that same code works for PPM and PGM files. - */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - return 1; -} - - -METHODDEF(JDIMENSION) -get_word_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-word-format PGM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - register int temp; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - } - return 1; -} - - -METHODDEF(JDIMENSION) -get_word_rgb_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading raw-word-format PPM files with any maxval */ -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - register JSAMPROW ptr; - register U_CHAR * bufferptr; - register JSAMPLE *rescale = source->rescale; - JDIMENSION col; - - if (! ReadOK(source->pub.input_file, source->iobuffer, source->buffer_width)) - ERREXIT(cinfo, JERR_INPUT_EOF); - ptr = source->pub.buffer[0]; - bufferptr = source->iobuffer; - for (col = cinfo->image_width; col > 0; col--) { - register int temp; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - temp = UCH(*bufferptr++) << 8; - temp |= UCH(*bufferptr++); - *ptr++ = rescale[temp]; - } - return 1; -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - ppm_source_ptr source = (ppm_source_ptr) sinfo; - int c; - unsigned int w, h, maxval; - boolean need_iobuffer, use_raw_buffer, need_rescale; - - if (getc(source->pub.input_file) != 'P') - ERREXIT(cinfo, JERR_PPM_NOT); - - c = getc(source->pub.input_file); /* subformat discriminator character */ - - /* detect unsupported variants (ie, PBM) before trying to read header */ - switch (c) { - case '2': /* it's a text-format PGM file */ - case '3': /* it's a text-format PPM file */ - case '5': /* it's a raw-format PGM file */ - case '6': /* it's a raw-format PPM file */ - break; - default: - ERREXIT(cinfo, JERR_PPM_NOT); - break; - } - - /* fetch the remaining header info */ - w = read_pbm_integer(cinfo, source->pub.input_file); - h = read_pbm_integer(cinfo, source->pub.input_file); - maxval = read_pbm_integer(cinfo, source->pub.input_file); - - if (w <= 0 || h <= 0 || maxval <= 0) /* error check */ - ERREXIT(cinfo, JERR_PPM_NOT); - - cinfo->data_precision = BITS_IN_JSAMPLE; /* we always rescale data to this */ - cinfo->image_width = (JDIMENSION) w; - cinfo->image_height = (JDIMENSION) h; - - /* initialize flags to most common settings */ - need_iobuffer = TRUE; /* do we need an I/O buffer? */ - use_raw_buffer = FALSE; /* do we map input buffer onto I/O buffer? */ - need_rescale = TRUE; /* do we need a rescale array? */ - - switch (c) { - case '2': /* it's a text-format PGM file */ - cinfo->input_components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_PGM_TEXT, w, h); - source->pub.get_pixel_rows = get_text_gray_row; - need_iobuffer = FALSE; - break; - - case '3': /* it's a text-format PPM file */ - cinfo->input_components = 3; - cinfo->in_color_space = JCS_RGB; - TRACEMS2(cinfo, 1, JTRC_PPM_TEXT, w, h); - source->pub.get_pixel_rows = get_text_rgb_row; - need_iobuffer = FALSE; - break; - - case '5': /* it's a raw-format PGM file */ - cinfo->input_components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_PGM, w, h); - if (maxval > 255) { - source->pub.get_pixel_rows = get_word_gray_row; - } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { - source->pub.get_pixel_rows = get_raw_row; - use_raw_buffer = TRUE; - need_rescale = FALSE; - } else { - source->pub.get_pixel_rows = get_scaled_gray_row; - } - break; - - case '6': /* it's a raw-format PPM file */ - cinfo->input_components = 3; - cinfo->in_color_space = JCS_RGB; - TRACEMS2(cinfo, 1, JTRC_PPM, w, h); - if (maxval > 255) { - source->pub.get_pixel_rows = get_word_rgb_row; - } else if (maxval == MAXJSAMPLE && SIZEOF(JSAMPLE) == SIZEOF(U_CHAR)) { - source->pub.get_pixel_rows = get_raw_row; - use_raw_buffer = TRUE; - need_rescale = FALSE; - } else { - source->pub.get_pixel_rows = get_scaled_rgb_row; - } - break; - } - - /* Allocate space for I/O buffer: 1 or 3 bytes or words/pixel. */ - if (need_iobuffer) { - source->buffer_width = (size_t) w * cinfo->input_components * - ((maxval<=255) ? SIZEOF(U_CHAR) : (2*SIZEOF(U_CHAR))); - source->iobuffer = (U_CHAR *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - source->buffer_width); - } - - /* Create compressor input buffer. */ - if (use_raw_buffer) { - /* For unscaled raw-input case, we can just map it onto the I/O buffer. */ - /* Synthesize a JSAMPARRAY pointer structure */ - /* Cast here implies near->far pointer conversion on PCs */ - source->pixrow = (JSAMPROW) source->iobuffer; - source->pub.buffer = & source->pixrow; - source->pub.buffer_height = 1; - } else { - /* Need to translate anyway, so make a separate sample buffer. */ - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) w * cinfo->input_components, (JDIMENSION) 1); - source->pub.buffer_height = 1; - } - - /* Compute the rescaling array if required. */ - if (need_rescale) { - INT32 val, half_maxval; - - /* On 16-bit-int machines we have to be careful of maxval = 65535 */ - source->rescale = (JSAMPLE *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (((long) maxval + 1L) * SIZEOF(JSAMPLE))); - half_maxval = maxval / 2; - for (val = 0; val <= (INT32) maxval; val++) { - /* The multiplication here must be done in 32 bits to avoid overflow */ - source->rescale[val] = (JSAMPLE) ((val*MAXJSAMPLE + half_maxval)/maxval); - } - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_ppm (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for PPM format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_ppm (j_compress_ptr cinfo) -{ - ppm_source_ptr source; - - /* Create module interface object */ - source = (ppm_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ppm_source_struct)); - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_ppm; - source->pub.finish_input = finish_input_ppm; - - return (cjpeg_source_ptr) source; -} - -#endif /* PPM_SUPPORTED */ diff --git a/jpeg/rdrle.c b/jpeg/rdrle.c deleted file mode 100755 index 542bc37..0000000 --- a/jpeg/rdrle.c +++ /dev/null @@ -1,387 +0,0 @@ -/* - * rdrle.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Utah RLE format. - * The Utah Raster Toolkit library is required (version 3.1 or later). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed RLE format). - * - * Based on code contributed by Mike Lijewski, - * with updates from Robert Hutchinson. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef RLE_SUPPORTED - -/* rle.h is provided by the Utah Raster Toolkit. */ - -#include - -/* - * We assume that JSAMPLE has the same representation as rle_pixel, - * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * We support the following types of RLE files: - * - * GRAYSCALE - 8 bits, no colormap - * MAPPEDGRAY - 8 bits, 1 channel colomap - * PSEUDOCOLOR - 8 bits, 3 channel colormap - * TRUECOLOR - 24 bits, 3 channel colormap - * DIRECTCOLOR - 24 bits, no colormap - * - * For now, we ignore any alpha channel in the image. - */ - -typedef enum - { GRAYSCALE, MAPPEDGRAY, PSEUDOCOLOR, TRUECOLOR, DIRECTCOLOR } rle_kind; - - -/* - * Since RLE stores scanlines bottom-to-top, we have to invert the image - * to conform to JPEG's top-to-bottom order. To do this, we read the - * incoming image into a virtual array on the first get_pixel_rows call, - * then fetch the required row from the virtual array on subsequent calls. - */ - -typedef struct _rle_source_struct * rle_source_ptr; - -typedef struct _rle_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - rle_kind visual; /* actual type of input file */ - jvirt_sarray_ptr image; /* virtual array to hold the image */ - JDIMENSION row; /* current row # in the virtual array */ - rle_hdr header; /* Input file information */ - rle_pixel** rle_row; /* holds a row returned by rle_getrow() */ - -} rle_source_struct; - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JDIMENSION width, height; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* Use RLE library routine to get the header info */ - source->header = *rle_hdr_init(NULL); - source->header.rle_file = source->pub.input_file; - switch (rle_get_setup(&(source->header))) { - case RLE_SUCCESS: - /* A-OK */ - break; - case RLE_NOT_RLE: - ERREXIT(cinfo, JERR_RLE_NOT); - break; - case RLE_NO_SPACE: - ERREXIT(cinfo, JERR_RLE_MEM); - break; - case RLE_EMPTY: - ERREXIT(cinfo, JERR_RLE_EMPTY); - break; - case RLE_EOF: - ERREXIT(cinfo, JERR_RLE_EOF); - break; - default: - ERREXIT(cinfo, JERR_RLE_BADERROR); - break; - } - - /* Figure out what we have, set private vars and return values accordingly */ - - width = source->header.xmax - source->header.xmin + 1; - height = source->header.ymax - source->header.ymin + 1; - source->header.xmin = 0; /* realign horizontally */ - source->header.xmax = width-1; - - cinfo->image_width = width; - cinfo->image_height = height; - cinfo->data_precision = 8; /* we can only handle 8 bit data */ - - if (source->header.ncolors == 1 && source->header.ncmap == 0) { - source->visual = GRAYSCALE; - TRACEMS2(cinfo, 1, JTRC_RLE_GRAY, width, height); - } else if (source->header.ncolors == 1 && source->header.ncmap == 1) { - source->visual = MAPPEDGRAY; - TRACEMS3(cinfo, 1, JTRC_RLE_MAPGRAY, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 1 && source->header.ncmap == 3) { - source->visual = PSEUDOCOLOR; - TRACEMS3(cinfo, 1, JTRC_RLE_MAPPED, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 3 && source->header.ncmap == 3) { - source->visual = TRUECOLOR; - TRACEMS3(cinfo, 1, JTRC_RLE_FULLMAP, width, height, - 1 << source->header.cmaplen); - } else if (source->header.ncolors == 3 && source->header.ncmap == 0) { - source->visual = DIRECTCOLOR; - TRACEMS2(cinfo, 1, JTRC_RLE, width, height); - } else - ERREXIT(cinfo, JERR_RLE_UNSUPPORTED); - - if (source->visual == GRAYSCALE || source->visual == MAPPEDGRAY) { - cinfo->in_color_space = JCS_GRAYSCALE; - cinfo->input_components = 1; - } else { - cinfo->in_color_space = JCS_RGB; - cinfo->input_components = 3; - } - - /* - * A place to hold each scanline while it's converted. - * (GRAYSCALE scanlines don't need converting) - */ - if (source->visual != GRAYSCALE) { - source->rle_row = (rle_pixel**) (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) width, (JDIMENSION) cinfo->input_components); - } - - /* request a virtual array to hold the image */ - source->image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) (width * source->header.ncolors), - (JDIMENSION) height, (JDIMENSION) 1); - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - /* count file input as separate pass */ - progress->total_extra_passes++; - } -#endif - - source->pub.buffer_height = 1; -} - - -/* - * Read one row of pixels. - * Called only after load_image has read the image into the virtual array. - * Used for GRAYSCALE, MAPPEDGRAY, TRUECOLOR, and DIRECTCOLOR images. - */ - -METHODDEF(JDIMENSION) -get_rle_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - - source->row--; - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); - - return 1; -} - -/* - * Read one row of pixels. - * Called only after load_image has read the image into the virtual array. - * Used for PSEUDOCOLOR images. - */ - -METHODDEF(JDIMENSION) -get_pseudocolor_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JSAMPROW src_row, dest_row; - JDIMENSION col; - rle_map *colormap; - int val; - - colormap = source->header.cmap; - dest_row = source->pub.buffer[0]; - source->row--; - src_row = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, source->row, (JDIMENSION) 1, FALSE); - - for (col = cinfo->image_width; col > 0; col--) { - val = GETJSAMPLE(*src_row++); - *dest_row++ = (JSAMPLE) (colormap[val ] >> 8); - *dest_row++ = (JSAMPLE) (colormap[val + 256] >> 8); - *dest_row++ = (JSAMPLE) (colormap[val + 512] >> 8); - } - - return 1; -} - - -/* - * Load the image into a virtual array. We have to do this because RLE - * files start at the lower left while the JPEG standard has them starting - * in the upper left. This is called the first time we want to get a row - * of input. What we do is load the RLE data into the array and then call - * the appropriate routine to read one row from the array. Before returning, - * we set source->pub.get_pixel_rows so that subsequent calls go straight to - * the appropriate row-reading routine. - */ - -METHODDEF(JDIMENSION) -load_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - rle_source_ptr source = (rle_source_ptr) sinfo; - JDIMENSION row, col; - JSAMPROW scanline, red_ptr, green_ptr, blue_ptr; - rle_pixel **rle_row; - rle_map *colormap; - char channel; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - colormap = source->header.cmap; - rle_row = source->rle_row; - - /* Read the RLE data into our virtual array. - * We assume here that (a) rle_pixel is represented the same as JSAMPLE, - * and (b) we are not on a machine where FAR pointers differ from regular. - */ - RLE_CLR_BIT(source->header, RLE_ALPHA); /* don't read the alpha channel */ - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_limit = cinfo->image_height; - progress->pub.pass_counter = 0; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - - switch (source->visual) { - - case GRAYSCALE: - case PSEUDOCOLOR: - for (row = 0; row < cinfo->image_height; row++) { - rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_getrow(&source->header, rle_row); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - break; - - case MAPPEDGRAY: - case TRUECOLOR: - for (row = 0; row < cinfo->image_height; row++) { - scanline = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_row = source->rle_row; - rle_getrow(&source->header, rle_row); - - for (col = 0; col < cinfo->image_width; col++) { - for (channel = 0; channel < source->header.ncolors; channel++) { - *scanline++ = (JSAMPLE) - (colormap[GETJSAMPLE(rle_row[channel][col]) + 256 * channel] >> 8); - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - break; - - case DIRECTCOLOR: - for (row = 0; row < cinfo->image_height; row++) { - scanline = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->image, row, (JDIMENSION) 1, TRUE); - rle_getrow(&source->header, rle_row); - - red_ptr = rle_row[0]; - green_ptr = rle_row[1]; - blue_ptr = rle_row[2]; - - for (col = cinfo->image_width; col > 0; col--) { - *scanline++ = *red_ptr++; - *scanline++ = *green_ptr++; - *scanline++ = *blue_ptr++; - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) - progress->completed_extra_passes++; -#endif - - /* Set up to call proper row-extraction routine in future */ - if (source->visual == PSEUDOCOLOR) { - source->pub.buffer = source->rle_row; - source->pub.get_pixel_rows = get_pseudocolor_row; - } else { - source->pub.get_pixel_rows = get_rle_row; - } - source->row = cinfo->image_height; - - /* And fetch the topmost (bottommost) row */ - return (*source->pub.get_pixel_rows) (cinfo, sinfo); -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_rle (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for RLE format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_rle (j_compress_ptr cinfo) -{ - rle_source_ptr source; - - /* Create module interface object */ - source = (rle_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(rle_source_struct)); - /* Fill in method ptrs */ - source->pub.start_input = start_input_rle; - source->pub.finish_input = finish_input_rle; - source->pub.get_pixel_rows = load_image; - - return (cjpeg_source_ptr) source; -} - -#endif /* RLE_SUPPORTED */ diff --git a/jpeg/rdswitch.c b/jpeg/rdswitch.c deleted file mode 100755 index 7a839af..0000000 --- a/jpeg/rdswitch.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * rdswitch.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to process some of cjpeg's more complicated - * command-line switches. Switches processed here are: - * -qtables file Read quantization tables from text file - * -scans file Read scan script from text file - * -quality N[,N,...] Set quality ratings - * -qslots N[,N,...] Set component quantization table selectors - * -sample HxV[,HxV,...] Set component sampling factors - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ -#include /* to declare isdigit(), isspace() */ - - -LOCAL(int) -text_getc (FILE * file) -/* Read next char, skipping over any comments (# to end of line) */ -/* A comment/newline sequence is returned as a newline */ -{ - register int ch; - - ch = getc(file); - if (ch == '#') { - do { - ch = getc(file); - } while (ch != '\n' && ch != EOF); - } - return ch; -} - - -LOCAL(boolean) -read_text_integer (FILE * file, long * result, int * termchar) -/* Read an unsigned decimal integer from a file, store it in result */ -/* Reads one trailing character after the integer; returns it in termchar */ -{ - register int ch; - register long val; - - /* Skip any leading whitespace, detect EOF */ - do { - ch = text_getc(file); - if (ch == EOF) { - *termchar = ch; - return FALSE; - } - } while (isspace(ch)); - - if (! isdigit(ch)) { - *termchar = ch; - return FALSE; - } - - val = ch - '0'; - while ((ch = text_getc(file)) != EOF) { - if (! isdigit(ch)) - break; - val *= 10; - val += ch - '0'; - } - *result = val; - *termchar = ch; - return TRUE; -} - - -GLOBAL(boolean) -read_quant_tables (j_compress_ptr cinfo, char * filename, boolean force_baseline) -/* Read a set of quantization tables from the specified file. - * The file is plain ASCII text: decimal numbers with whitespace between. - * Comments preceded by '#' may be included in the file. - * There may be one to NUM_QUANT_TBLS tables in the file, each of 64 values. - * The tables are implicitly numbered 0,1,etc. - * NOTE: does not affect the qslots mapping, which will default to selecting - * table 0 for luminance (or primary) components, 1 for chrominance components. - * You must use -qslots if you want a different component->table mapping. - */ -{ - FILE * fp; - int tblno, i, termchar; - long val; - unsigned int table[DCTSIZE2]; - - if ((fp = fopen(filename, "r")) == NULL) { - fprintf(stderr, "Can't open table file %s\n", filename); - return FALSE; - } - tblno = 0; - - while (read_text_integer(fp, &val, &termchar)) { /* read 1st element of table */ - if (tblno >= NUM_QUANT_TBLS) { - fprintf(stderr, "Too many tables in file %s\n", filename); - fclose(fp); - return FALSE; - } - table[0] = (unsigned int) val; - for (i = 1; i < DCTSIZE2; i++) { - if (! read_text_integer(fp, &val, &termchar)) { - fprintf(stderr, "Invalid table data in file %s\n", filename); - fclose(fp); - return FALSE; - } - table[i] = (unsigned int) val; - } - jpeg_add_quant_table(cinfo, tblno, table, cinfo->q_scale_factor[tblno], - force_baseline); - tblno++; - } - - if (termchar != EOF) { - fprintf(stderr, "Non-numeric data in file %s\n", filename); - fclose(fp); - return FALSE; - } - - fclose(fp); - return TRUE; -} - - -#ifdef C_MULTISCAN_FILES_SUPPORTED - -LOCAL(boolean) -read_scan_integer (FILE * file, long * result, int * termchar) -/* Variant of read_text_integer that always looks for a non-space termchar; - * this simplifies parsing of punctuation in scan scripts. - */ -{ - register int ch; - - if (! read_text_integer(file, result, termchar)) - return FALSE; - ch = *termchar; - while (ch != EOF && isspace(ch)) - ch = text_getc(file); - if (isdigit(ch)) { /* oops, put it back */ - if (ungetc(ch, file) == EOF) - return FALSE; - ch = ' '; - } else { - /* Any separators other than ';' and ':' are ignored; - * this allows user to insert commas, etc, if desired. - */ - if (ch != EOF && ch != ';' && ch != ':') - ch = ' '; - } - *termchar = ch; - return TRUE; -} - - -GLOBAL(boolean) -read_scan_script (j_compress_ptr cinfo, char * filename) -/* Read a scan script from the specified text file. - * Each entry in the file defines one scan to be emitted. - * Entries are separated by semicolons ';'. - * An entry contains one to four component indexes, - * optionally followed by a colon ':' and four progressive-JPEG parameters. - * The component indexes denote which component(s) are to be transmitted - * in the current scan. The first component has index 0. - * Sequential JPEG is used if the progressive-JPEG parameters are omitted. - * The file is free format text: any whitespace may appear between numbers - * and the ':' and ';' punctuation marks. Also, other punctuation (such - * as commas or dashes) can be placed between numbers if desired. - * Comments preceded by '#' may be included in the file. - * Note: we do very little validity checking here; - * jcmaster.c will validate the script parameters. - */ -{ - FILE * fp; - int scanno, ncomps, termchar; - long val; - jpeg_scan_info * scanptr; -#define MAX_SCANS 100 /* quite arbitrary limit */ - jpeg_scan_info scans[MAX_SCANS]; - - if ((fp = fopen(filename, "r")) == NULL) { - fprintf(stderr, "Can't open scan definition file %s\n", filename); - return FALSE; - } - scanptr = scans; - scanno = 0; - - while (read_scan_integer(fp, &val, &termchar)) { - if (scanno >= MAX_SCANS) { - fprintf(stderr, "Too many scans defined in file %s\n", filename); - fclose(fp); - return FALSE; - } - scanptr->component_index[0] = (int) val; - ncomps = 1; - while (termchar == ' ') { - if (ncomps >= MAX_COMPS_IN_SCAN) { - fprintf(stderr, "Too many components in one scan in file %s\n", - filename); - fclose(fp); - return FALSE; - } - if (! read_scan_integer(fp, &val, &termchar)) - goto bogus; - scanptr->component_index[ncomps] = (int) val; - ncomps++; - } - scanptr->comps_in_scan = ncomps; - if (termchar == ':') { - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Ss = (int) val; - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Se = (int) val; - if (! read_scan_integer(fp, &val, &termchar) || termchar != ' ') - goto bogus; - scanptr->Ah = (int) val; - if (! read_scan_integer(fp, &val, &termchar)) - goto bogus; - scanptr->Al = (int) val; - } else { - /* set non-progressive parameters */ - scanptr->Ss = 0; - scanptr->Se = DCTSIZE2-1; - scanptr->Ah = 0; - scanptr->Al = 0; - } - if (termchar != ';' && termchar != EOF) { -bogus: - fprintf(stderr, "Invalid scan entry format in file %s\n", filename); - fclose(fp); - return FALSE; - } - scanptr++, scanno++; - } - - if (termchar != EOF) { - fprintf(stderr, "Non-numeric data in file %s\n", filename); - fclose(fp); - return FALSE; - } - - if (scanno > 0) { - /* Stash completed scan list in cinfo structure. - * NOTE: for cjpeg's use, JPOOL_IMAGE is the right lifetime for this data, - * but if you want to compress multiple images you'd want JPOOL_PERMANENT. - */ - scanptr = (jpeg_scan_info *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - scanno * SIZEOF(jpeg_scan_info)); - MEMCOPY(scanptr, scans, scanno * SIZEOF(jpeg_scan_info)); - cinfo->scan_info = scanptr; - cinfo->num_scans = scanno; - } - - fclose(fp); - return TRUE; -} - -#endif /* C_MULTISCAN_FILES_SUPPORTED */ - - -GLOBAL(boolean) -set_quality_ratings (j_compress_ptr cinfo, char *arg, boolean force_baseline) -/* Process a quality-ratings parameter string, of the form - * N[,N,...] - * If there are more q-table slots than parameters, the last value is replicated. - */ -{ - int val = 75; /* default value */ - int tblno; - char ch; - - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - if (*arg) { - ch = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c", &val, &ch) < 1) - return FALSE; - if (ch != ',') /* syntax check */ - return FALSE; - /* Convert user 0-100 rating to percentage scaling */ - cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining factors to last value */ - cinfo->q_scale_factor[tblno] = jpeg_quality_scaling(val); - } - } - jpeg_default_qtables(cinfo, force_baseline); - return TRUE; -} - - -GLOBAL(boolean) -set_quant_slots (j_compress_ptr cinfo, char *arg) -/* Process a quantization-table-selectors parameter string, of the form - * N[,N,...] - * If there are more components than parameters, the last value is replicated. - */ -{ - int val = 0; /* default table # */ - int ci; - char ch; - - for (ci = 0; ci < MAX_COMPONENTS; ci++) { - if (*arg) { - ch = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c", &val, &ch) < 1) - return FALSE; - if (ch != ',') /* syntax check */ - return FALSE; - if (val < 0 || val >= NUM_QUANT_TBLS) { - fprintf(stderr, "JPEG quantization tables are numbered 0..%d\n", - NUM_QUANT_TBLS-1); - return FALSE; - } - cinfo->comp_info[ci].quant_tbl_no = val; - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining components to last table */ - cinfo->comp_info[ci].quant_tbl_no = val; - } - } - return TRUE; -} - - -GLOBAL(boolean) -set_sample_factors (j_compress_ptr cinfo, char *arg) -/* Process a sample-factors parameter string, of the form - * HxV[,HxV,...] - * If there are more components than parameters, "1x1" is assumed for the rest. - */ -{ - int ci, val1, val2; - char ch1, ch2; - - for (ci = 0; ci < MAX_COMPONENTS; ci++) { - if (*arg) { - ch2 = ','; /* if not set by sscanf, will be ',' */ - if (sscanf(arg, "%d%c%d%c", &val1, &ch1, &val2, &ch2) < 3) - return FALSE; - if ((ch1 != 'x' && ch1 != 'X') || ch2 != ',') /* syntax check */ - return FALSE; - if (val1 <= 0 || val1 > 4 || val2 <= 0 || val2 > 4) { - fprintf(stderr, "JPEG sampling factors must be 1..4\n"); - return FALSE; - } - cinfo->comp_info[ci].h_samp_factor = val1; - cinfo->comp_info[ci].v_samp_factor = val2; - while (*arg && *arg++ != ',') /* advance to next segment of arg string */ - ; - } else { - /* reached end of parameter, set remaining components to 1x1 sampling */ - cinfo->comp_info[ci].h_samp_factor = 1; - cinfo->comp_info[ci].v_samp_factor = 1; - } - } - return TRUE; -} diff --git a/jpeg/rdtarga.c b/jpeg/rdtarga.c deleted file mode 100755 index 4c2cd26..0000000 --- a/jpeg/rdtarga.c +++ /dev/null @@ -1,500 +0,0 @@ -/* - * rdtarga.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to read input images in Targa format. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume input from - * an ordinary stdio stream. They further assume that reading begins - * at the start of the file; start_input may need work if the - * user interface has already read some data (e.g., to determine that - * the file is indeed Targa format). - * - * Based on code contributed by Lee Daniel Crocker. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef TARGA_SUPPORTED - - -/* Macros to deal with unsigned chars as efficiently as compiler allows */ - -#ifdef HAVE_UNSIGNED_CHAR -typedef unsigned char U_CHAR; -#define UCH(x) ((int) (x)) -#else /* !HAVE_UNSIGNED_CHAR */ -#ifdef CHAR_IS_UNSIGNED -typedef char U_CHAR; -#define UCH(x) ((int) (x)) -#else -typedef char U_CHAR; -#define UCH(x) ((int) (x) & 0xFF) -#endif -#endif /* HAVE_UNSIGNED_CHAR */ - - -#define ReadOK(file,buffer,len) (JFREAD(file,buffer,len) == ((size_t) (len))) - - -/* Private version of data source object */ - -typedef struct _tga_source_struct * tga_source_ptr; - -typedef struct _tga_source_struct { - struct cjpeg_source_struct pub; /* public fields */ - - j_compress_ptr cinfo; /* back link saves passing separate parm */ - - JSAMPARRAY colormap; /* Targa colormap (converted to my format) */ - - jvirt_sarray_ptr whole_image; /* Needed if funny input row order */ - JDIMENSION current_row; /* Current logical row number to read */ - - /* Pointer to routine to extract next Targa pixel from input file */ - JMETHOD(void, read_pixel, (tga_source_ptr sinfo)); - - /* Result of read_pixel is delivered here: */ - U_CHAR tga_pixel[4]; - - int pixel_size; /* Bytes per Targa pixel (1 to 4) */ - - /* State info for reading RLE-coded pixels; both counts must be init to 0 */ - int block_count; /* # of pixels remaining in RLE block */ - int dup_pixel_count; /* # of times to duplicate previous pixel */ - - /* This saves the correct pixel-row-expansion method for preload_image */ - JMETHOD(JDIMENSION, get_pixel_rows, (j_compress_ptr cinfo, - cjpeg_source_ptr sinfo)); -} tga_source_struct; - - -/* For expanding 5-bit pixel values to 8-bit with best rounding */ - -static const UINT8 c5to8bits[32] = { - 0, 8, 16, 25, 33, 41, 49, 58, - 66, 74, 82, 90, 99, 107, 115, 123, - 132, 140, 148, 156, 165, 173, 181, 189, - 197, 206, 214, 222, 230, 239, 247, 255 -}; - - - -LOCAL(int) -read_byte (tga_source_ptr sinfo) -/* Read next byte from Targa file */ -{ - register FILE *infile = sinfo->pub.input_file; - register int c; - - if ((c = getc(infile)) == EOF) - ERREXIT(sinfo->cinfo, JERR_INPUT_EOF); - return c; -} - - -LOCAL(void) -read_colormap (tga_source_ptr sinfo, int cmaplen, int mapentrysize) -/* Read the colormap from a Targa file */ -{ - int i; - - /* Presently only handles 24-bit BGR format */ - if (mapentrysize != 24) - ERREXIT(sinfo->cinfo, JERR_TGA_BADCMAP); - - for (i = 0; i < cmaplen; i++) { - sinfo->colormap[2][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[1][i] = (JSAMPLE) read_byte(sinfo); - sinfo->colormap[0][i] = (JSAMPLE) read_byte(sinfo); - } -} - - -/* - * read_pixel methods: get a single pixel from Targa file into tga_pixel[] - */ - -METHODDEF(void) -read_non_rle_pixel (tga_source_ptr sinfo) -/* Read one Targa pixel from the input file; no RLE expansion */ -{ - register FILE *infile = sinfo->pub.input_file; - register int i; - - for (i = 0; i < sinfo->pixel_size; i++) { - sinfo->tga_pixel[i] = (U_CHAR) getc(infile); - } -} - - -METHODDEF(void) -read_rle_pixel (tga_source_ptr sinfo) -/* Read one Targa pixel from the input file, expanding RLE data as needed */ -{ - register FILE *infile = sinfo->pub.input_file; - register int i; - - /* Duplicate previously read pixel? */ - if (sinfo->dup_pixel_count > 0) { - sinfo->dup_pixel_count--; - return; - } - - /* Time to read RLE block header? */ - if (--sinfo->block_count < 0) { /* decrement pixels remaining in block */ - i = read_byte(sinfo); - if (i & 0x80) { /* Start of duplicate-pixel block? */ - sinfo->dup_pixel_count = i & 0x7F; /* number of dups after this one */ - sinfo->block_count = 0; /* then read new block header */ - } else { - sinfo->block_count = i & 0x7F; /* number of pixels after this one */ - } - } - - /* Read next pixel */ - for (i = 0; i < sinfo->pixel_size; i++) { - sinfo->tga_pixel[i] = (U_CHAR) getc(infile); - } -} - - -/* - * Read one row of pixels. - * - * We provide several different versions depending on input file format. - */ - - -METHODDEF(JDIMENSION) -get_8bit_gray_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit grayscale pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); - } - return 1; -} - -METHODDEF(JDIMENSION) -get_8bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 8-bit colormap indexes */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register int t; - register JSAMPROW ptr; - register JDIMENSION col; - register JSAMPARRAY colormap = source->colormap; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - t = UCH(source->tga_pixel[0]); - *ptr++ = colormap[0][t]; - *ptr++ = colormap[1][t]; - *ptr++ = colormap[2][t]; - } - return 1; -} - -METHODDEF(JDIMENSION) -get_16bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 16-bit pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register int t; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - t = UCH(source->tga_pixel[0]); - t += UCH(source->tga_pixel[1]) << 8; - /* We expand 5 bit data to 8 bit sample width. - * The format of the 16-bit (LSB first) input word is - * xRRRRRGGGGGBBBBB - */ - ptr[2] = (JSAMPLE) c5to8bits[t & 0x1F]; - t >>= 5; - ptr[1] = (JSAMPLE) c5to8bits[t & 0x1F]; - t >>= 5; - ptr[0] = (JSAMPLE) c5to8bits[t & 0x1F]; - ptr += 3; - } - return 1; -} - -METHODDEF(JDIMENSION) -get_24bit_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -/* This version is for reading 24-bit pixels */ -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = source->pub.buffer[0]; - for (col = cinfo->image_width; col > 0; col--) { - (*source->read_pixel) (source); /* Load next pixel into tga_pixel */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[2]); /* change BGR to RGB order */ - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[1]); - *ptr++ = (JSAMPLE) UCH(source->tga_pixel[0]); - } - return 1; -} - -/* - * Targa also defines a 32-bit pixel format with order B,G,R,A. - * We presently ignore the attribute byte, so the code for reading - * these pixels is identical to the 24-bit routine above. - * This works because the actual pixel length is only known to read_pixel. - */ - -#define get_32bit_row get_24bit_row - - -/* - * This method is for re-reading the input data in standard top-down - * row order. The entire image has already been read into whole_image - * with proper conversion of pixel format, but it's in a funny row order. - */ - -METHODDEF(JDIMENSION) -get_memory_row (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - JDIMENSION source_row; - - /* Compute row of source that maps to current_row of normal order */ - /* For now, assume image is bottom-up and not interlaced. */ - /* NEEDS WORK to support interlaced images! */ - source_row = cinfo->image_height - source->current_row - 1; - - /* Fetch that row from virtual array */ - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, - source_row, (JDIMENSION) 1, FALSE); - - source->current_row++; - return 1; -} - - -/* - * This method loads the image into whole_image during the first call on - * get_pixel_rows. The get_pixel_rows pointer is then adjusted to call - * get_memory_row on subsequent calls. - */ - -METHODDEF(JDIMENSION) -preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - JDIMENSION row; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Read the data into a virtual array in input-file row order. */ - for (row = 0; row < cinfo->image_height; row++) { - if (progress != NULL) { - progress->pub.pass_counter = (long) row; - progress->pub.pass_limit = (long) cinfo->image_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - source->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, source->whole_image, row, (JDIMENSION) 1, TRUE); - (*source->get_pixel_rows) (cinfo, sinfo); - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Set up to read from the virtual array in unscrambled order */ - source->pub.get_pixel_rows = get_memory_row; - source->current_row = 0; - /* And read the first row */ - return get_memory_row(cinfo, sinfo); -} - - -/* - * Read the file header; return image size and component count. - */ - -METHODDEF(void) -start_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - tga_source_ptr source = (tga_source_ptr) sinfo; - U_CHAR targaheader[18]; - int idlen, cmaptype, subtype, flags, interlace_type, components; - unsigned int width, height, maplen; - boolean is_bottom_up; - -#define GET_2B(offset) ((unsigned int) UCH(targaheader[offset]) + \ - (((unsigned int) UCH(targaheader[offset+1])) << 8)) - - if (! ReadOK(source->pub.input_file, targaheader, 18)) - ERREXIT(cinfo, JERR_INPUT_EOF); - - /* Pretend "15-bit" pixels are 16-bit --- we ignore attribute bit anyway */ - if (targaheader[16] == 15) - targaheader[16] = 16; - - idlen = UCH(targaheader[0]); - cmaptype = UCH(targaheader[1]); - subtype = UCH(targaheader[2]); - maplen = GET_2B(5); - width = GET_2B(12); - height = GET_2B(14); - source->pixel_size = UCH(targaheader[16]) >> 3; - flags = UCH(targaheader[17]); /* Image Descriptor byte */ - - is_bottom_up = ((flags & 0x20) == 0); /* bit 5 set => top-down */ - interlace_type = flags >> 6; /* bits 6/7 are interlace code */ - - if (cmaptype > 1 || /* cmaptype must be 0 or 1 */ - source->pixel_size < 1 || source->pixel_size > 4 || - (UCH(targaheader[16]) & 7) != 0 || /* bits/pixel must be multiple of 8 */ - interlace_type != 0) /* currently don't allow interlaced image */ - ERREXIT(cinfo, JERR_TGA_BADPARMS); - - if (subtype > 8) { - /* It's an RLE-coded file */ - source->read_pixel = read_rle_pixel; - source->block_count = source->dup_pixel_count = 0; - subtype -= 8; - } else { - /* Non-RLE file */ - source->read_pixel = read_non_rle_pixel; - } - - /* Now should have subtype 1, 2, or 3 */ - components = 3; /* until proven different */ - cinfo->in_color_space = JCS_RGB; - - switch (subtype) { - case 1: /* Colormapped image */ - if (source->pixel_size == 1 && cmaptype == 1) - source->get_pixel_rows = get_8bit_row; - else - ERREXIT(cinfo, JERR_TGA_BADPARMS); - TRACEMS2(cinfo, 1, JTRC_TGA_MAPPED, width, height); - break; - case 2: /* RGB image */ - switch (source->pixel_size) { - case 2: - source->get_pixel_rows = get_16bit_row; - break; - case 3: - source->get_pixel_rows = get_24bit_row; - break; - case 4: - source->get_pixel_rows = get_32bit_row; - break; - default: - ERREXIT(cinfo, JERR_TGA_BADPARMS); - break; - } - TRACEMS2(cinfo, 1, JTRC_TGA, width, height); - break; - case 3: /* Grayscale image */ - components = 1; - cinfo->in_color_space = JCS_GRAYSCALE; - if (source->pixel_size == 1) - source->get_pixel_rows = get_8bit_gray_row; - else - ERREXIT(cinfo, JERR_TGA_BADPARMS); - TRACEMS2(cinfo, 1, JTRC_TGA_GRAY, width, height); - break; - default: - ERREXIT(cinfo, JERR_TGA_BADPARMS); - break; - } - - if (is_bottom_up) { - /* Create a virtual array to buffer the upside-down image. */ - source->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) width * components, (JDIMENSION) height, (JDIMENSION) 1); - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - /* source->pub.buffer will point to the virtual array. */ - source->pub.buffer_height = 1; /* in case anyone looks at it */ - source->pub.get_pixel_rows = preload_image; - } else { - /* Don't need a virtual array, but do need a one-row input buffer. */ - source->whole_image = NULL; - source->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - (JDIMENSION) width * components, (JDIMENSION) 1); - source->pub.buffer_height = 1; - source->pub.get_pixel_rows = source->get_pixel_rows; - } - - while (idlen--) /* Throw away ID field */ - (void) read_byte(source); - - if (maplen > 0) { - if (maplen > 256 || GET_2B(3) != 0) - ERREXIT(cinfo, JERR_TGA_BADCMAP); - /* Allocate space to store the colormap */ - source->colormap = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, (JDIMENSION) maplen, (JDIMENSION) 3); - /* and read it from the file */ - read_colormap(source, (int) maplen, UCH(targaheader[7])); - } else { - if (cmaptype) /* but you promised a cmap! */ - ERREXIT(cinfo, JERR_TGA_BADPARMS); - source->colormap = NULL; - } - - cinfo->input_components = components; - cinfo->data_precision = 8; - cinfo->image_width = width; - cinfo->image_height = height; -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_input_tga (j_compress_ptr cinfo, cjpeg_source_ptr sinfo) -{ - /* no work */ -} - - -/* - * The module selection routine for Targa format input. - */ - -GLOBAL(cjpeg_source_ptr) -jinit_read_targa (j_compress_ptr cinfo) -{ - tga_source_ptr source; - - /* Create module interface object */ - source = (tga_source_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(tga_source_struct)); - source->cinfo = cinfo; /* make back link for subroutines */ - /* Fill in method ptrs, except get_pixel_rows which start_input sets */ - source->pub.start_input = start_input_tga; - source->pub.finish_input = finish_input_tga; - - return (cjpeg_source_ptr) source; -} - -#endif /* TARGA_SUPPORTED */ diff --git a/jpeg/readme.dos b/jpeg/readme.dos deleted file mode 100755 index 3267876..0000000 --- a/jpeg/readme.dos +++ /dev/null @@ -1,15 +0,0 @@ -This archive contains a DOS-friendly version of the Independent JPEG Group's -source code. It differs from the normal distribution in that: - -1. The archive format is zip rather than tar+gzip. You should be able to -unpack it with PKUNZIP (2.04g or later) or Info-Zip's unzip or 7-Zip. - -2. Newlines have been converted from Unix (LF) to DOS (CR/LF) style in all -text files, but not in the binary files (test*.*). - -3. Object files have been included for jmemdosa.asm. See jdosaobj.txt. - -Please see the main README file for the primary documentation. - -If you'd rather have a non-DOSified archive, see the ARCHIVE LOCATIONS section -of README. diff --git a/jpeg/structure.txt b/jpeg/structure.txt deleted file mode 100755 index 44e48ca..0000000 --- a/jpeg/structure.txt +++ /dev/null @@ -1,941 +0,0 @@ -IJG JPEG LIBRARY: SYSTEM ARCHITECTURE - -Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding. -This file is part of the Independent JPEG Group's software. -For conditions of distribution and use, see the accompanying README file. - - -This file provides an overview of the architecture of the IJG JPEG software; -that is, the functions of the various modules in the system and the interfaces -between modules. For more precise details about any data structure or calling -convention, see the include files and comments in the source code. - -We assume that the reader is already somewhat familiar with the JPEG standard. -The README file includes references for learning about JPEG. The file -libjpeg.txt describes the library from the viewpoint of an application -programmer using the library; it's best to read that file before this one. -Also, the file coderules.txt describes the coding style conventions we use. - -In this document, JPEG-specific terminology follows the JPEG standard: - A "component" means a color channel, e.g., Red or Luminance. - A "sample" is a single component value (i.e., one number in the image data). - A "coefficient" is a frequency coefficient (a DCT transform output number). - A "block" is an array of samples or coefficients. - An "MCU" (minimum coded unit) is an interleaved set of blocks of size - determined by the sampling factors, or a single block in a - noninterleaved scan. -We do not use the terms "pixel" and "sample" interchangeably. When we say -pixel, we mean an element of the full-size image, while a sample is an element -of the downsampled image. Thus the number of samples may vary across -components while the number of pixels does not. (This terminology is not used -rigorously throughout the code, but it is used in places where confusion would -otherwise result.) - - -*** System features *** - -The IJG distribution contains two parts: - * A subroutine library for JPEG compression and decompression. - * cjpeg/djpeg, two sample applications that use the library to transform - JFIF JPEG files to and from several other image formats. -cjpeg/djpeg are of no great intellectual complexity: they merely add a simple -command-line user interface and I/O routines for several uncompressed image -formats. This document concentrates on the library itself. - -We desire the library to be capable of supporting all JPEG baseline, extended -sequential, and progressive DCT processes. The library does not support the -hierarchical or lossless processes defined in the standard. - -Within these limits, any set of compression parameters allowed by the JPEG -spec should be readable for decompression. (We can be more restrictive about -what formats we can generate.) Although the system design allows for all -parameter values, some uncommon settings are not yet implemented and may -never be; nonintegral sampling ratios are the prime example. Furthermore, -we treat 8-bit vs. 12-bit data precision as a compile-time switch, not a -run-time option, because most machines can store 8-bit pixels much more -compactly than 12-bit. - -By itself, the library handles only interchange JPEG datastreams --- in -particular the widely used JFIF file format. The library can be used by -surrounding code to process interchange or abbreviated JPEG datastreams that -are embedded in more complex file formats. (For example, libtiff uses this -library to implement JPEG compression within the TIFF file format.) - -The library includes a substantial amount of code that is not covered by the -JPEG standard but is necessary for typical applications of JPEG. These -functions preprocess the image before JPEG compression or postprocess it after -decompression. They include colorspace conversion, downsampling/upsampling, -and color quantization. This code can be omitted if not needed. - -A wide range of quality vs. speed tradeoffs are possible in JPEG processing, -and even more so in decompression postprocessing. The decompression library -provides multiple implementations that cover most of the useful tradeoffs, -ranging from very-high-quality down to fast-preview operation. On the -compression side we have generally not provided low-quality choices, since -compression is normally less time-critical. It should be understood that the -low-quality modes may not meet the JPEG standard's accuracy requirements; -nonetheless, they are useful for viewers. - - -*** Portability issues *** - -Portability is an essential requirement for the library. The key portability -issues that show up at the level of system architecture are: - -1. Memory usage. We want the code to be able to run on PC-class machines -with limited memory. Images should therefore be processed sequentially (in -strips), to avoid holding the whole image in memory at once. Where a -full-image buffer is necessary, we should be able to use either virtual memory -or temporary files. - -2. Near/far pointer distinction. To run efficiently on 80x86 machines, the -code should distinguish "small" objects (kept in near data space) from -"large" ones (kept in far data space). This is an annoying restriction, but -fortunately it does not impact code quality for less brain-damaged machines, -and the source code clutter turns out to be minimal with sufficient use of -pointer typedefs. - -3. Data precision. We assume that "char" is at least 8 bits, "short" and -"int" at least 16, "long" at least 32. The code will work fine with larger -data sizes, although memory may be used inefficiently in some cases. However, -the JPEG compressed datastream must ultimately appear on external storage as a -sequence of 8-bit bytes if it is to conform to the standard. This may pose a -problem on machines where char is wider than 8 bits. The library represents -compressed data as an array of values of typedef JOCTET. If no data type -exactly 8 bits wide is available, custom data source and data destination -modules must be written to unpack and pack the chosen JOCTET datatype into -8-bit external representation. - - -*** System overview *** - -The compressor and decompressor are each divided into two main sections: -the JPEG compressor or decompressor proper, and the preprocessing or -postprocessing functions. The interface between these two sections is the -image data that the official JPEG spec regards as its input or output: this -data is in the colorspace to be used for compression, and it is downsampled -to the sampling factors to be used. The preprocessing and postprocessing -steps are responsible for converting a normal image representation to or from -this form. (Those few applications that want to deal with YCbCr downsampled -data can skip the preprocessing or postprocessing step.) - -Looking more closely, the compressor library contains the following main -elements: - - Preprocessing: - * Color space conversion (e.g., RGB to YCbCr). - * Edge expansion and downsampling. Optionally, this step can do simple - smoothing --- this is often helpful for low-quality source data. - JPEG proper: - * MCU assembly, DCT, quantization. - * Entropy coding (sequential or progressive, Huffman or arithmetic). - -In addition to these modules we need overall control, marker generation, -and support code (memory management & error handling). There is also a -module responsible for physically writing the output data --- typically -this is just an interface to fwrite(), but some applications may need to -do something else with the data. - -The decompressor library contains the following main elements: - - JPEG proper: - * Entropy decoding (sequential or progressive, Huffman or arithmetic). - * Dequantization, inverse DCT, MCU disassembly. - Postprocessing: - * Upsampling. Optionally, this step may be able to do more general - rescaling of the image. - * Color space conversion (e.g., YCbCr to RGB). This step may also - provide gamma adjustment [ currently it does not ]. - * Optional color quantization (e.g., reduction to 256 colors). - * Optional color precision reduction (e.g., 24-bit to 15-bit color). - [This feature is not currently implemented.] - -We also need overall control, marker parsing, and a data source module. -The support code (memory management & error handling) can be shared with -the compression half of the library. - -There may be several implementations of each of these elements, particularly -in the decompressor, where a wide range of speed/quality tradeoffs is very -useful. It must be understood that some of the best speedups involve -merging adjacent steps in the pipeline. For example, upsampling, color space -conversion, and color quantization might all be done at once when using a -low-quality ordered-dither technique. The system architecture is designed to -allow such merging where appropriate. - - -Note: it is convenient to regard edge expansion (padding to block boundaries) -as a preprocessing/postprocessing function, even though the JPEG spec includes -it in compression/decompression. We do this because downsampling/upsampling -can be simplified a little if they work on padded data: it's not necessary to -have special cases at the right and bottom edges. Therefore the interface -buffer is always an integral number of blocks wide and high, and we expect -compression preprocessing to pad the source data properly. Padding will occur -only to the next block (N-sample) boundary. In an interleaved-scan situation, -additional dummy blocks may be used to fill out MCUs, but the MCU assembly and -disassembly logic will create or discard these blocks internally. (This is -advantageous for speed reasons, since we avoid DCTing the dummy blocks. -It also permits a small reduction in file size, because the compressor can -choose dummy block contents so as to minimize their size in compressed form. -Finally, it makes the interface buffer specification independent of whether -the file is actually interleaved or not.) Applications that wish to deal -directly with the downsampled data must provide similar buffering and padding -for odd-sized images. - - -*** Poor man's object-oriented programming *** - -It should be clear by now that we have a lot of quasi-independent processing -steps, many of which have several possible behaviors. To avoid cluttering the -code with lots of switch statements, we use a simple form of object-style -programming to separate out the different possibilities. - -For example, two different color quantization algorithms could be implemented -as two separate modules that present the same external interface; at runtime, -the calling code will access the proper module indirectly through an "object". - -We can get the limited features we need while staying within portable C. -The basic tool is a function pointer. An "object" is just a struct -containing one or more function pointer fields, each of which corresponds to -a method name in real object-oriented languages. During initialization we -fill in the function pointers with references to whichever module we have -determined we need to use in this run. Then invocation of the module is done -by indirecting through a function pointer; on most machines this is no more -expensive than a switch statement, which would be the only other way of -making the required run-time choice. The really significant benefit, of -course, is keeping the source code clean and well structured. - -We can also arrange to have private storage that varies between different -implementations of the same kind of object. We do this by making all the -module-specific object structs be separately allocated entities, which will -be accessed via pointers in the master compression or decompression struct. -The "public" fields or methods for a given kind of object are specified by -a commonly known struct. But a module's initialization code can allocate -a larger struct that contains the common struct as its first member, plus -additional private fields. With appropriate pointer casting, the module's -internal functions can access these private fields. (For a simple example, -see jdatadst.c, which implements the external interface specified by struct -jpeg_destination_mgr, but adds extra fields.) - -(Of course this would all be a lot easier if we were using C++, but we are -not yet prepared to assume that everyone has a C++ compiler.) - -An important benefit of this scheme is that it is easy to provide multiple -versions of any method, each tuned to a particular case. While a lot of -precalculation might be done to select an optimal implementation of a method, -the cost per invocation is constant. For example, the upsampling step might -have a "generic" method, plus one or more "hardwired" methods for the most -popular sampling factors; the hardwired methods would be faster because they'd -use straight-line code instead of for-loops. The cost to determine which -method to use is paid only once, at startup, and the selection criteria are -hidden from the callers of the method. - -This plan differs a little bit from usual object-oriented structures, in that -only one instance of each object class will exist during execution. The -reason for having the class structure is that on different runs we may create -different instances (choose to execute different modules). You can think of -the term "method" as denoting the common interface presented by a particular -set of interchangeable functions, and "object" as denoting a group of related -methods, or the total shared interface behavior of a group of modules. - - -*** Overall control structure *** - -We previously mentioned the need for overall control logic in the compression -and decompression libraries. In IJG implementations prior to v5, overall -control was mostly provided by "pipeline control" modules, which proved to be -large, unwieldy, and hard to understand. To improve the situation, the -control logic has been subdivided into multiple modules. The control modules -consist of: - -1. Master control for module selection and initialization. This has two -responsibilities: - - 1A. Startup initialization at the beginning of image processing. - The individual processing modules to be used in this run are selected - and given initialization calls. - - 1B. Per-pass control. This determines how many passes will be performed - and calls each active processing module to configure itself - appropriately at the beginning of each pass. End-of-pass processing, - where necessary, is also invoked from the master control module. - - Method selection is partially distributed, in that a particular processing - module may contain several possible implementations of a particular method, - which it will select among when given its initialization call. The master - control code need only be concerned with decisions that affect more than - one module. - -2. Data buffering control. A separate control module exists for each - inter-processing-step data buffer. This module is responsible for - invoking the processing steps that write or read that data buffer. - -Each buffer controller sees the world as follows: - -input data => processing step A => buffer => processing step B => output data - | | | - ------------------ controller ------------------ - -The controller knows the dataflow requirements of steps A and B: how much data -they want to accept in one chunk and how much they output in one chunk. Its -function is to manage its buffer and call A and B at the proper times. - -A data buffer control module may itself be viewed as a processing step by a -higher-level control module; thus the control modules form a binary tree with -elementary processing steps at the leaves of the tree. - -The control modules are objects. A considerable amount of flexibility can -be had by replacing implementations of a control module. For example: -* Merging of adjacent steps in the pipeline is done by replacing a control - module and its pair of processing-step modules with a single processing- - step module. (Hence the possible merges are determined by the tree of - control modules.) -* In some processing modes, a given interstep buffer need only be a "strip" - buffer large enough to accommodate the desired data chunk sizes. In other - modes, a full-image buffer is needed and several passes are required. - The control module determines which kind of buffer is used and manipulates - virtual array buffers as needed. One or both processing steps may be - unaware of the multi-pass behavior. - -In theory, we might be able to make all of the data buffer controllers -interchangeable and provide just one set of implementations for all. In -practice, each one contains considerable special-case processing for its -particular job. The buffer controller concept should be regarded as an -overall system structuring principle, not as a complete description of the -task performed by any one controller. - - -*** Compression object structure *** - -Here is a sketch of the logical structure of the JPEG compression library: - - |-- Colorspace conversion - |-- Preprocessing controller --| - | |-- Downsampling -Main controller --| - | |-- Forward DCT, quantize - |-- Coefficient controller --| - |-- Entropy encoding - -This sketch also describes the flow of control (subroutine calls) during -typical image data processing. Each of the components shown in the diagram is -an "object" which may have several different implementations available. One -or more source code files contain the actual implementation(s) of each object. - -The objects shown above are: - -* Main controller: buffer controller for the subsampled-data buffer, which - holds the preprocessed input data. This controller invokes preprocessing to - fill the subsampled-data buffer, and JPEG compression to empty it. There is - usually no need for a full-image buffer here; a strip buffer is adequate. - -* Preprocessing controller: buffer controller for the downsampling input data - buffer, which lies between colorspace conversion and downsampling. Note - that a unified conversion/downsampling module would probably replace this - controller entirely. - -* Colorspace conversion: converts application image data into the desired - JPEG color space; also changes the data from pixel-interleaved layout to - separate component planes. Processes one pixel row at a time. - -* Downsampling: performs reduction of chroma components as required. - Optionally may perform pixel-level smoothing as well. Processes a "row - group" at a time, where a row group is defined as Vmax pixel rows of each - component before downsampling, and Vk sample rows afterwards (remember Vk - differs across components). Some downsampling or smoothing algorithms may - require context rows above and below the current row group; the - preprocessing controller is responsible for supplying these rows via proper - buffering. The downsampler is responsible for edge expansion at the right - edge (i.e., extending each sample row to a multiple of N samples); but the - preprocessing controller is responsible for vertical edge expansion (i.e., - duplicating the bottom sample row as needed to make a multiple of N rows). - -* Coefficient controller: buffer controller for the DCT-coefficient data. - This controller handles MCU assembly, including insertion of dummy DCT - blocks when needed at the right or bottom edge. When performing - Huffman-code optimization or emitting a multiscan JPEG file, this - controller is responsible for buffering the full image. The equivalent of - one fully interleaved MCU row of subsampled data is processed per call, - even when the JPEG file is noninterleaved. - -* Forward DCT and quantization: Perform DCT, quantize, and emit coefficients. - Works on one or more DCT blocks at a time. (Note: the coefficients are now - emitted in normal array order, which the entropy encoder is expected to - convert to zigzag order as necessary. Prior versions of the IJG code did - the conversion to zigzag order within the quantization step.) - -* Entropy encoding: Perform Huffman or arithmetic entropy coding and emit the - coded data to the data destination module. Works on one MCU per call. - For progressive JPEG, the same DCT blocks are fed to the entropy coder - during each pass, and the coder must emit the appropriate subset of - coefficients. - -In addition to the above objects, the compression library includes these -objects: - -* Master control: determines the number of passes required, controls overall - and per-pass initialization of the other modules. - -* Marker writing: generates JPEG markers (except for RSTn, which is emitted - by the entropy encoder when needed). - -* Data destination manager: writes the output JPEG datastream to its final - destination (e.g., a file). The destination manager supplied with the - library knows how to write to a stdio stream or to a memory buffer; - for other behaviors, the surrounding application may provide its own - destination manager. - -* Memory manager: allocates and releases memory, controls virtual arrays - (with backing store management, where required). - -* Error handler: performs formatting and output of error and trace messages; - determines handling of nonfatal errors. The surrounding application may - override some or all of this object's methods to change error handling. - -* Progress monitor: supports output of "percent-done" progress reports. - This object represents an optional callback to the surrounding application: - if wanted, it must be supplied by the application. - -The error handler, destination manager, and progress monitor objects are -defined as separate objects in order to simplify application-specific -customization of the JPEG library. A surrounding application may override -individual methods or supply its own all-new implementation of one of these -objects. The object interfaces for these objects are therefore treated as -part of the application interface of the library, whereas the other objects -are internal to the library. - -The error handler and memory manager are shared by JPEG compression and -decompression; the progress monitor, if used, may be shared as well. - - -*** Decompression object structure *** - -Here is a sketch of the logical structure of the JPEG decompression library: - - |-- Entropy decoding - |-- Coefficient controller --| - | |-- Dequantize, Inverse DCT -Main controller --| - | |-- Upsampling - |-- Postprocessing controller --| |-- Colorspace conversion - |-- Color quantization - |-- Color precision reduction - -As before, this diagram also represents typical control flow. The objects -shown are: - -* Main controller: buffer controller for the subsampled-data buffer, which - holds the output of JPEG decompression proper. This controller's primary - task is to feed the postprocessing procedure. Some upsampling algorithms - may require context rows above and below the current row group; when this - is true, the main controller is responsible for managing its buffer so as - to make context rows available. In the current design, the main buffer is - always a strip buffer; a full-image buffer is never required. - -* Coefficient controller: buffer controller for the DCT-coefficient data. - This controller handles MCU disassembly, including deletion of any dummy - DCT blocks at the right or bottom edge. When reading a multiscan JPEG - file, this controller is responsible for buffering the full image. - (Buffering DCT coefficients, rather than samples, is necessary to support - progressive JPEG.) The equivalent of one fully interleaved MCU row of - subsampled data is processed per call, even when the source JPEG file is - noninterleaved. - -* Entropy decoding: Read coded data from the data source module and perform - Huffman or arithmetic entropy decoding. Works on one MCU per call. - For progressive JPEG decoding, the coefficient controller supplies the prior - coefficients of each MCU (initially all zeroes), which the entropy decoder - modifies in each scan. - -* Dequantization and inverse DCT: like it says. Note that the coefficients - buffered by the coefficient controller have NOT been dequantized; we - merge dequantization and inverse DCT into a single step for speed reasons. - When scaled-down output is asked for, simplified DCT algorithms may be used - that need fewer coefficients and emit fewer samples per DCT block, not the - full 8x8. Works on one DCT block at a time. - -* Postprocessing controller: buffer controller for the color quantization - input buffer, when quantization is in use. (Without quantization, this - controller just calls the upsampler.) For two-pass quantization, this - controller is responsible for buffering the full-image data. - -* Upsampling: restores chroma components to full size. (May support more - general output rescaling, too. Note that if undersized DCT outputs have - been emitted by the DCT module, this module must adjust so that properly - sized outputs are created.) Works on one row group at a time. This module - also calls the color conversion module, so its top level is effectively a - buffer controller for the upsampling->color conversion buffer. However, in - all but the highest-quality operating modes, upsampling and color - conversion are likely to be merged into a single step. - -* Colorspace conversion: convert from JPEG color space to output color space, - and change data layout from separate component planes to pixel-interleaved. - Works on one pixel row at a time. - -* Color quantization: reduce the data to colormapped form, using either an - externally specified colormap or an internally generated one. This module - is not used for full-color output. Works on one pixel row at a time; may - require two passes to generate a color map. Note that the output will - always be a single component representing colormap indexes. In the current - design, the output values are JSAMPLEs, so an 8-bit compilation cannot - quantize to more than 256 colors. This is unlikely to be a problem in - practice. - -* Color reduction: this module handles color precision reduction, e.g., - generating 15-bit color (5 bits/primary) from JPEG's 24-bit output. - Not quite clear yet how this should be handled... should we merge it with - colorspace conversion??? - -Note that some high-speed operating modes might condense the entire -postprocessing sequence to a single module (upsample, color convert, and -quantize in one step). - -In addition to the above objects, the decompression library includes these -objects: - -* Master control: determines the number of passes required, controls overall - and per-pass initialization of the other modules. This is subdivided into - input and output control: jdinput.c controls only input-side processing, - while jdmaster.c handles overall initialization and output-side control. - -* Marker reading: decodes JPEG markers (except for RSTn). - -* Data source manager: supplies the input JPEG datastream. The source - manager supplied with the library knows how to read from a stdio stream - or from a memory buffer; for other behaviors, the surrounding application - may provide its own source manager. - -* Memory manager: same as for compression library. - -* Error handler: same as for compression library. - -* Progress monitor: same as for compression library. - -As with compression, the data source manager, error handler, and progress -monitor are candidates for replacement by a surrounding application. - - -*** Decompression input and output separation *** - -To support efficient incremental display of progressive JPEG files, the -decompressor is divided into two sections that can run independently: - -1. Data input includes marker parsing, entropy decoding, and input into the - coefficient controller's DCT coefficient buffer. Note that this - processing is relatively cheap and fast. - -2. Data output reads from the DCT coefficient buffer and performs the IDCT - and all postprocessing steps. - -For a progressive JPEG file, the data input processing is allowed to get -arbitrarily far ahead of the data output processing. (This occurs only -if the application calls jpeg_consume_input(); otherwise input and output -run in lockstep, since the input section is called only when the output -section needs more data.) In this way the application can avoid making -extra display passes when data is arriving faster than the display pass -can run. Furthermore, it is possible to abort an output pass without -losing anything, since the coefficient buffer is read-only as far as the -output section is concerned. See libjpeg.txt for more detail. - -A full-image coefficient array is only created if the JPEG file has multiple -scans (or if the application specifies buffered-image mode anyway). When -reading a single-scan file, the coefficient controller normally creates only -a one-MCU buffer, so input and output processing must run in lockstep in this -case. jpeg_consume_input() is effectively a no-op in this situation. - -The main impact of dividing the decompressor in this fashion is that we must -be very careful with shared variables in the cinfo data structure. Each -variable that can change during the course of decompression must be -classified as belonging to data input or data output, and each section must -look only at its own variables. For example, the data output section may not -depend on any of the variables that describe the current scan in the JPEG -file, because these may change as the data input section advances into a new -scan. - -The progress monitor is (somewhat arbitrarily) defined to treat input of the -file as one pass when buffered-image mode is not used, and to ignore data -input work completely when buffered-image mode is used. Note that the -library has no reliable way to predict the number of passes when dealing -with a progressive JPEG file, nor can it predict the number of output passes -in buffered-image mode. So the work estimate is inherently bogus anyway. - -No comparable division is currently made in the compression library, because -there isn't any real need for it. - - -*** Data formats *** - -Arrays of pixel sample values use the following data structure: - - typedef something JSAMPLE; a pixel component value, 0..MAXJSAMPLE - typedef JSAMPLE *JSAMPROW; ptr to a row of samples - typedef JSAMPROW *JSAMPARRAY; ptr to a list of rows - typedef JSAMPARRAY *JSAMPIMAGE; ptr to a list of color-component arrays - -The basic element type JSAMPLE will typically be one of unsigned char, -(signed) char, or short. Short will be used if samples wider than 8 bits are -to be supported (this is a compile-time option). Otherwise, unsigned char is -used if possible. If the compiler only supports signed chars, then it is -necessary to mask off the value when reading. Thus, all reads of JSAMPLE -values must be coded as "GETJSAMPLE(value)", where the macro will be defined -as "((value) & 0xFF)" on signed-char machines and "((int) (value))" elsewhere. - -With these conventions, JSAMPLE values can be assumed to be >= 0. This helps -simplify correct rounding during downsampling, etc. The JPEG standard's -specification that sample values run from -128..127 is accommodated by -subtracting 128 from the sample value in the DCT step. Similarly, during -decompression the output of the IDCT step will be immediately shifted back to -0..255. (NB: different values are required when 12-bit samples are in use. -The code is written in terms of MAXJSAMPLE and CENTERJSAMPLE, which will be -defined as 255 and 128 respectively in an 8-bit implementation, and as 4095 -and 2048 in a 12-bit implementation.) - -We use a pointer per row, rather than a two-dimensional JSAMPLE array. This -choice costs only a small amount of memory and has several benefits: -* Code using the data structure doesn't need to know the allocated width of - the rows. This simplifies edge expansion/compression, since we can work - in an array that's wider than the logical picture width. -* Indexing doesn't require multiplication; this is a performance win on many - machines. -* Arrays with more than 64K total elements can be supported even on machines - where malloc() cannot allocate chunks larger than 64K. -* The rows forming a component array may be allocated at different times - without extra copying. This trick allows some speedups in smoothing steps - that need access to the previous and next rows. - -Note that each color component is stored in a separate array; we don't use the -traditional layout in which the components of a pixel are stored together. -This simplifies coding of modules that work on each component independently, -because they don't need to know how many components there are. Furthermore, -we can read or write each component to a temporary file independently, which -is helpful when dealing with noninterleaved JPEG files. - -In general, a specific sample value is accessed by code such as - GETJSAMPLE(image[colorcomponent][row][col]) -where col is measured from the image left edge, but row is measured from the -first sample row currently in memory. Either of the first two indexings can -be precomputed by copying the relevant pointer. - - -Since most image-processing applications prefer to work on images in which -the components of a pixel are stored together, the data passed to or from the -surrounding application uses the traditional convention: a single pixel is -represented by N consecutive JSAMPLE values, and an image row is an array of -(# of color components)*(image width) JSAMPLEs. One or more rows of data can -be represented by a pointer of type JSAMPARRAY in this scheme. This scheme is -converted to component-wise storage inside the JPEG library. (Applications -that want to skip JPEG preprocessing or postprocessing will have to contend -with component-wise storage.) - - -Arrays of DCT-coefficient values use the following data structure: - - typedef short JCOEF; a 16-bit signed integer - typedef JCOEF JBLOCK[DCTSIZE2]; an 8x8 block of coefficients - typedef JBLOCK *JBLOCKROW; ptr to one horizontal row of 8x8 blocks - typedef JBLOCKROW *JBLOCKARRAY; ptr to a list of such rows - typedef JBLOCKARRAY *JBLOCKIMAGE; ptr to a list of color component arrays - -The underlying type is at least a 16-bit signed integer; while "short" is big -enough on all machines of interest, on some machines it is preferable to use -"int" for speed reasons, despite the storage cost. Coefficients are grouped -into 8x8 blocks (but we always use #defines DCTSIZE and DCTSIZE2 rather than -"8" and "64"). - -The contents of a coefficient block may be in either "natural" or zigzagged -order, and may be true values or divided by the quantization coefficients, -depending on where the block is in the processing pipeline. In the current -library, coefficient blocks are kept in natural order everywhere; the entropy -codecs zigzag or dezigzag the data as it is written or read. The blocks -contain quantized coefficients everywhere outside the DCT/IDCT subsystems. -(This latter decision may need to be revisited to support variable -quantization a la JPEG Part 3.) - -Notice that the allocation unit is now a row of 8x8 coefficient blocks, -corresponding to N rows of samples. Otherwise the structure is much the same -as for samples, and for the same reasons. - -On machines where malloc() can't handle a request bigger than 64Kb, this data -structure limits us to rows of less than 512 JBLOCKs, or a picture width of -4000+ pixels. This seems an acceptable restriction. - - -On 80x86 machines, the bottom-level pointer types (JSAMPROW and JBLOCKROW) -must be declared as "far" pointers, but the upper levels can be "near" -(implying that the pointer lists are allocated in the DS segment). -We use a #define symbol FAR, which expands to the "far" keyword when -compiling on 80x86 machines and to nothing elsewhere. - - -*** Suspendable processing *** - -In some applications it is desirable to use the JPEG library as an -incremental, memory-to-memory filter. In this situation the data source or -destination may be a limited-size buffer, and we can't rely on being able to -empty or refill the buffer at arbitrary times. Instead the application would -like to have control return from the library at buffer overflow/underrun, and -then resume compression or decompression at a later time. - -This scenario is supported for simple cases. (For anything more complex, we -recommend that the application "bite the bullet" and develop real multitasking -capability.) The libjpeg.txt file goes into more detail about the usage and -limitations of this capability; here we address the implications for library -structure. - -The essence of the problem is that the entropy codec (coder or decoder) must -be prepared to stop at arbitrary times. In turn, the controllers that call -the entropy codec must be able to stop before having produced or consumed all -the data that they normally would handle in one call. That part is reasonably -straightforward: we make the controller call interfaces include "progress -counters" which indicate the number of data chunks successfully processed, and -we require callers to test the counter rather than just assume all of the data -was processed. - -Rather than trying to restart at an arbitrary point, the current Huffman -codecs are designed to restart at the beginning of the current MCU after a -suspension due to buffer overflow/underrun. At the start of each call, the -codec's internal state is loaded from permanent storage (in the JPEG object -structures) into local variables. On successful completion of the MCU, the -permanent state is updated. (This copying is not very expensive, and may even -lead to *improved* performance if the local variables can be registerized.) -If a suspension occurs, the codec simply returns without updating the state, -thus effectively reverting to the start of the MCU. Note that this implies -leaving some data unprocessed in the source/destination buffer (ie, the -compressed partial MCU). The data source/destination module interfaces are -specified so as to make this possible. This also implies that the data buffer -must be large enough to hold a worst-case compressed MCU; a couple thousand -bytes should be enough. - -In a successive-approximation AC refinement scan, the progressive Huffman -decoder has to be able to undo assignments of newly nonzero coefficients if it -suspends before the MCU is complete, since decoding requires distinguishing -previously-zero and previously-nonzero coefficients. This is a bit tedious -but probably won't have much effect on performance. Other variants of Huffman -decoding need not worry about this, since they will just store the same values -again if forced to repeat the MCU. - -This approach would probably not work for an arithmetic codec, since its -modifiable state is quite large and couldn't be copied cheaply. Instead it -would have to suspend and resume exactly at the point of the buffer end. - -The JPEG marker reader is designed to cope with suspension at an arbitrary -point. It does so by backing up to the start of the marker parameter segment, -so the data buffer must be big enough to hold the largest marker of interest. -Again, a couple KB should be adequate. (A special "skip" convention is used -to bypass COM and APPn markers, so these can be larger than the buffer size -without causing problems; otherwise a 64K buffer would be needed in the worst -case.) - -The JPEG marker writer currently does *not* cope with suspension. -We feel that this is not necessary; it is much easier simply to require -the application to ensure there is enough buffer space before starting. (An -empty 2K buffer is more than sufficient for the header markers; and ensuring -there are a dozen or two bytes available before calling jpeg_finish_compress() -will suffice for the trailer.) This would not work for writing multi-scan -JPEG files, but we simply do not intend to support that capability with -suspension. - - -*** Memory manager services *** - -The JPEG library's memory manager controls allocation and deallocation of -memory, and it manages large "virtual" data arrays on machines where the -operating system does not provide virtual memory. Note that the same -memory manager serves both compression and decompression operations. - -In all cases, allocated objects are tied to a particular compression or -decompression master record, and they will be released when that master -record is destroyed. - -The memory manager does not provide explicit deallocation of objects. -Instead, objects are created in "pools" of free storage, and a whole pool -can be freed at once. This approach helps prevent storage-leak bugs, and -it speeds up operations whenever malloc/free are slow (as they often are). -The pools can be regarded as lifetime identifiers for objects. Two -pools/lifetimes are defined: - * JPOOL_PERMANENT lasts until master record is destroyed - * JPOOL_IMAGE lasts until done with image (JPEG datastream) -Permanent lifetime is used for parameters and tables that should be carried -across from one datastream to another; this includes all application-visible -parameters. Image lifetime is used for everything else. (A third lifetime, -JPOOL_PASS = one processing pass, was originally planned. However it was -dropped as not being worthwhile. The actual usage patterns are such that the -peak memory usage would be about the same anyway; and having per-pass storage -substantially complicates the virtual memory allocation rules --- see below.) - -The memory manager deals with three kinds of object: -1. "Small" objects. Typically these require no more than 10K-20K total. -2. "Large" objects. These may require tens to hundreds of K depending on - image size. Semantically they behave the same as small objects, but we - distinguish them for two reasons: - * On MS-DOS machines, large objects are referenced by FAR pointers, - small objects by NEAR pointers. - * Pool allocation heuristics may differ for large and small objects. - Note that individual "large" objects cannot exceed the size allowed by - type size_t, which may be 64K or less on some machines. -3. "Virtual" objects. These are large 2-D arrays of JSAMPLEs or JBLOCKs - (typically large enough for the entire image being processed). The - memory manager provides stripwise access to these arrays. On machines - without virtual memory, the rest of the array may be swapped out to a - temporary file. - -(Note: JSAMPARRAY and JBLOCKARRAY data structures are a combination of large -objects for the data proper and small objects for the row pointers. For -convenience and speed, the memory manager provides single routines to create -these structures. Similarly, virtual arrays include a small control block -and a JSAMPARRAY or JBLOCKARRAY working buffer, all created with one call.) - -In the present implementation, virtual arrays are only permitted to have image -lifespan. (Permanent lifespan would not be reasonable, and pass lifespan is -not very useful since a virtual array's raison d'etre is to store data for -multiple passes through the image.) We also expect that only "small" objects -will be given permanent lifespan, though this restriction is not required by -the memory manager. - -In a non-virtual-memory machine, some performance benefit can be gained by -making the in-memory buffers for virtual arrays be as large as possible. -(For small images, the buffers might fit entirely in memory, so blind -swapping would be very wasteful.) The memory manager will adjust the height -of the buffers to fit within a prespecified maximum memory usage. In order -to do this in a reasonably optimal fashion, the manager needs to allocate all -of the virtual arrays at once. Therefore, there isn't a one-step allocation -routine for virtual arrays; instead, there is a "request" routine that simply -allocates the control block, and a "realize" routine (called just once) that -determines space allocation and creates all of the actual buffers. The -realize routine must allow for space occupied by non-virtual large objects. -(We don't bother to factor in the space needed for small objects, on the -grounds that it isn't worth the trouble.) - -To support all this, we establish the following protocol for doing business -with the memory manager: - 1. Modules must request virtual arrays (which may have only image lifespan) - during the initial setup phase, i.e., in their jinit_xxx routines. - 2. All "large" objects (including JSAMPARRAYs and JBLOCKARRAYs) must also be - allocated during initial setup. - 3. realize_virt_arrays will be called at the completion of initial setup. - The above conventions ensure that sufficient information is available - for it to choose a good size for virtual array buffers. -Small objects of any lifespan may be allocated at any time. We expect that -the total space used for small objects will be small enough to be negligible -in the realize_virt_arrays computation. - -In a virtual-memory machine, we simply pretend that the available space is -infinite, thus causing realize_virt_arrays to decide that it can allocate all -the virtual arrays as full-size in-memory buffers. The overhead of the -virtual-array access protocol is very small when no swapping occurs. - -A virtual array can be specified to be "pre-zeroed"; when this flag is set, -never-yet-written sections of the array are set to zero before being made -available to the caller. If this flag is not set, never-written sections -of the array contain garbage. (This feature exists primarily because the -equivalent logic would otherwise be needed in jdcoefct.c for progressive -JPEG mode; we may as well make it available for possible other uses.) - -The first write pass on a virtual array is required to occur in top-to-bottom -order; read passes, as well as any write passes after the first one, may -access the array in any order. This restriction exists partly to simplify -the virtual array control logic, and partly because some file systems may not -support seeking beyond the current end-of-file in a temporary file. The main -implication of this restriction is that rearrangement of rows (such as -converting top-to-bottom data order to bottom-to-top) must be handled while -reading data out of the virtual array, not while putting it in. - - -*** Memory manager internal structure *** - -To isolate system dependencies as much as possible, we have broken the -memory manager into two parts. There is a reasonably system-independent -"front end" (jmemmgr.c) and a "back end" that contains only the code -likely to change across systems. All of the memory management methods -outlined above are implemented by the front end. The back end provides -the following routines for use by the front end (none of these routines -are known to the rest of the JPEG code): - -jpeg_mem_init, jpeg_mem_term system-dependent initialization/shutdown - -jpeg_get_small, jpeg_free_small interface to malloc and free library routines - (or their equivalents) - -jpeg_get_large, jpeg_free_large interface to FAR malloc/free in MSDOS machines; - else usually the same as - jpeg_get_small/jpeg_free_small - -jpeg_mem_available estimate available memory - -jpeg_open_backing_store create a backing-store object - -read_backing_store, manipulate a backing-store object -write_backing_store, -close_backing_store - -On some systems there will be more than one type of backing-store object -(specifically, in MS-DOS a backing store file might be an area of extended -memory as well as a disk file). jpeg_open_backing_store is responsible for -choosing how to implement a given object. The read/write/close routines -are method pointers in the structure that describes a given object; this -lets them be different for different object types. - -It may be necessary to ensure that backing store objects are explicitly -released upon abnormal program termination. For example, MS-DOS won't free -extended memory by itself. To support this, we will expect the main program -or surrounding application to arrange to call self_destruct (typically via -jpeg_destroy) upon abnormal termination. This may require a SIGINT signal -handler or equivalent. We don't want to have the back end module install its -own signal handler, because that would pre-empt the surrounding application's -ability to control signal handling. - -The IJG distribution includes several memory manager back end implementations. -Usually the same back end should be suitable for all applications on a given -system, but it is possible for an application to supply its own back end at -need. - - -*** Implications of DNL marker *** - -Some JPEG files may use a DNL marker to postpone definition of the image -height (this would be useful for a fax-like scanner's output, for instance). -In these files the SOF marker claims the image height is 0, and you only -find out the true image height at the end of the first scan. - -We could read these files as follows: -1. Upon seeing zero image height, replace it by 65535 (the maximum allowed). -2. When the DNL is found, update the image height in the global image - descriptor. -This implies that control modules must avoid making copies of the image -height, and must re-test for termination after each MCU row. This would -be easy enough to do. - -In cases where image-size data structures are allocated, this approach will -result in very inefficient use of virtual memory or much-larger-than-necessary -temporary files. This seems acceptable for something that probably won't be a -mainstream usage. People might have to forgo use of memory-hogging options -(such as two-pass color quantization or noninterleaved JPEG files) if they -want efficient conversion of such files. (One could improve efficiency by -demanding a user-supplied upper bound for the height, less than 65536; in most -cases it could be much less.) - -The standard also permits the SOF marker to overestimate the image height, -with a DNL to give the true, smaller height at the end of the first scan. -This would solve the space problems if the overestimate wasn't too great. -However, it implies that you don't even know whether DNL will be used. - -This leads to a couple of very serious objections: -1. Testing for a DNL marker must occur in the inner loop of the decompressor's - Huffman decoder; this implies a speed penalty whether the feature is used - or not. -2. There is no way to hide the last-minute change in image height from an - application using the decoder. Thus *every* application using the IJG - library would suffer a complexity penalty whether it cared about DNL or - not. -We currently do not support DNL because of these problems. - -A different approach is to insist that DNL-using files be preprocessed by a -separate program that reads ahead to the DNL, then goes back and fixes the SOF -marker. This is a much simpler solution and is probably far more efficient. -Even if one wants piped input, buffering the first scan of the JPEG file needs -a lot smaller temp file than is implied by the maximum-height method. For -this approach we'd simply treat DNL as a no-op in the decompressor (at most, -check that it matches the SOF image height). - -We will not worry about making the compressor capable of outputting DNL. -Something similar to the first scheme above could be applied if anyone ever -wants to make that work. diff --git a/jpeg/testimg.bmp b/jpeg/testimg.bmp deleted file mode 100755 index 012223e..0000000 Binary files a/jpeg/testimg.bmp and /dev/null differ diff --git a/jpeg/testimg.jpg b/jpeg/testimg.jpg deleted file mode 100755 index a026e48..0000000 Binary files a/jpeg/testimg.jpg and /dev/null differ diff --git a/jpeg/testimg.ppm b/jpeg/testimg.ppm deleted file mode 100755 index bd78ef8..0000000 --- a/jpeg/testimg.ppm +++ /dev/null @@ -1,4 +0,0 @@ -P6 -227 149 -255 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/* to declare isdigit() */ - - -#if TRANSFORMS_SUPPORTED - -/* - * Lossless image transformation routines. These routines work on DCT - * coefficient arrays and thus do not require any lossy decompression - * or recompression of the image. - * Thanks to Guido Vollbeding for the initial design and code of this feature, - * and to Ben Jackson for introducing the cropping feature. - * - * Horizontal flipping is done in-place, using a single top-to-bottom - * pass through the virtual source array. It will thus be much the - * fastest option for images larger than main memory. - * - * The other routines require a set of destination virtual arrays, so they - * need twice as much memory as jpegtran normally does. The destination - * arrays are always written in normal scan order (top to bottom) because - * the virtual array manager expects this. The source arrays will be scanned - * in the corresponding order, which means multiple passes through the source - * arrays for most of the transforms. That could result in much thrashing - * if the image is larger than main memory. - * - * If cropping or trimming is involved, the destination arrays may be smaller - * than the source arrays. Note it is not possible to do horizontal flip - * in-place when a nonzero Y crop offset is specified, since we'd have to move - * data from one block row to another but the virtual array manager doesn't - * guarantee we can touch more than one row at a time. So in that case, - * we have to use a separate destination array. - * - * Some notes about the operating environment of the individual transform - * routines: - * 1. Both the source and destination virtual arrays are allocated from the - * source JPEG object, and therefore should be manipulated by calling the - * source's memory manager. - * 2. The destination's component count should be used. It may be smaller - * than the source's when forcing to grayscale. - * 3. Likewise the destination's sampling factors should be used. When - * forcing to grayscale the destination's sampling factors will be all 1, - * and we may as well take that as the effective iMCU size. - * 4. When "trim" is in effect, the destination's dimensions will be the - * trimmed values but the source's will be untrimmed. - * 5. When "crop" is in effect, the destination's dimensions will be the - * cropped values but the source's will be uncropped. Each transform - * routine is responsible for picking up source data starting at the - * correct X and Y offset for the crop region. (The X and Y offsets - * passed to the transform routines are measured in iMCU blocks of the - * destination.) - * 6. All the routines assume that the source and destination buffers are - * padded out to a full iMCU boundary. This is true, although for the - * source buffer it is an undocumented property of jdcoefct.c. - */ - - -LOCAL(void) -do_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Crop. This is only used when no rotate/flip is requested with the crop. */ -{ - JDIMENSION dst_blk_y, x_crop_blocks, y_crop_blocks; - int ci, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - jpeg_component_info *compptr; - - /* We simply have to copy the right amount of data (the destination's - * image size) starting at the given X and Y offsets in the source. - */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, - dst_buffer[offset_y], - compptr->width_in_blocks); - } - } - } -} - - -LOCAL(void) -do_flip_h_no_crop (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, - jvirt_barray_ptr *src_coef_arrays) -/* Horizontal flip; done in-place, so no separate dest array is required. - * NB: this only works when y_crop_offset is zero. - */ -{ - JDIMENSION MCU_cols, comp_width, blk_x, blk_y, x_crop_blocks; - int ci, k, offset_y; - JBLOCKARRAY buffer; - JCOEFPTR ptr1, ptr2; - JCOEF temp1, temp2; - jpeg_component_info *compptr; - - /* Horizontal mirroring of DCT blocks is accomplished by swapping - * pairs of blocks in-place. Within a DCT block, we perform horizontal - * mirroring by changing the signs of odd-numbered columns. - * Partial iMCUs at the right edge are left untouched. - */ - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - for (blk_y = 0; blk_y < compptr->height_in_blocks; - blk_y += compptr->v_samp_factor) { - buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - /* Do the mirroring */ - for (blk_x = 0; blk_x * 2 < comp_width; blk_x++) { - ptr1 = buffer[offset_y][blk_x]; - ptr2 = buffer[offset_y][comp_width - blk_x - 1]; - /* this unrolled loop doesn't need to know which row it's on... */ - for (k = 0; k < DCTSIZE2; k += 2) { - temp1 = *ptr1; /* swap even column */ - temp2 = *ptr2; - *ptr1++ = temp2; - *ptr2++ = temp1; - temp1 = *ptr1; /* swap odd column with sign change */ - temp2 = *ptr2; - *ptr1++ = -temp2; - *ptr2++ = -temp1; - } - } - if (x_crop_blocks > 0) { - /* Now left-justify the portion of the data to be kept. - * We can't use a single jcopy_block_row() call because that routine - * depends on memcpy(), whose behavior is unspecified for overlapping - * source and destination areas. Sigh. - */ - for (blk_x = 0; blk_x < compptr->width_in_blocks; blk_x++) { - jcopy_block_row(buffer[offset_y] + blk_x + x_crop_blocks, - buffer[offset_y] + blk_x, - (JDIMENSION) 1); - } - } - } - } - } -} - - -LOCAL(void) -do_flip_h (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Horizontal flip in general cropping case */ -{ - JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, k, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Here we must output into a separate array because we can't touch - * different rows of a single virtual array simultaneously. Otherwise, - * this is essentially the same as the routine above. - */ - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - dst_row_ptr = dst_buffer[offset_y]; - src_row_ptr = src_buffer[offset_y]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Do the mirrorable blocks */ - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - /* this unrolled loop doesn't need to know which row it's on... */ - for (k = 0; k < DCTSIZE2; k += 2) { - *dst_ptr++ = *src_ptr++; /* copy even column */ - *dst_ptr++ = - *src_ptr++; /* copy odd column with sign change */ - } - } else { - /* Copy last partial block(s) verbatim */ - jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, - dst_row_ptr + dst_blk_x, - (JDIMENSION) 1); - } - } - } - } - } -} - - -LOCAL(void) -do_flip_v (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Vertical flip */ -{ - JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* We output into a separate array because we can't touch different - * rows of the source virtual array simultaneously. Otherwise, this - * is a pretty straightforward analog of horizontal flip. - * Within a DCT block, vertical mirroring is done by changing the signs - * of odd-numbered rows. - * Partial iMCUs at the bottom edge are copied verbatim. - */ - MCU_rows = srcinfo->output_height / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_height - y_crop_blocks - dst_blk_y - - (JDIMENSION) compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } else { - /* Bottom-edge blocks will be copied verbatim. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - dst_row_ptr = dst_buffer[offset_y]; - src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; - src_row_ptr += x_crop_blocks; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x++) { - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[dst_blk_x]; - for (i = 0; i < DCTSIZE; i += 2) { - /* copy even row */ - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = *src_ptr++; - /* copy odd row with sign change */ - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = - *src_ptr++; - } - } - } else { - /* Just copy row verbatim. */ - jcopy_block_row(src_buffer[offset_y] + x_crop_blocks, - dst_buffer[offset_y], - compptr->width_in_blocks); - } - } - } - } -} - - -LOCAL(void) -do_transpose (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Transpose source into destination */ -{ - JDIMENSION dst_blk_x, dst_blk_y, x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Transposing pixels within a block just requires transposing the - * DCT coefficients. - * Partial iMCUs at the edges require no special treatment; we simply - * process all the available DCT blocks for every component. - */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - src_ptr = src_buffer[offset_x][dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } -} - - -LOCAL(void) -do_rot_90 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 90 degree rotation is equivalent to - * 1. Transposing the image; - * 2. Horizontal mirroring. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, comp_width, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Because of the horizontal mirror step, we can't process partial iMCUs - * at the (output) right edge properly. They just get transposed and - * not mirrored. - */ - MCU_cols = srcinfo->output_height / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_width - x_crop_blocks - dst_blk_x - - (JDIMENSION) compptr->h_samp_factor, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } else { - /* Edge blocks are transposed but not mirrored. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - i++; - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } else { - /* Edge blocks are transposed but not mirrored. */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } -} - - -LOCAL(void) -do_rot_270 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 270 degree rotation is equivalent to - * 1. Horizontal mirroring; - * 2. Transposing the image. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_rows, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - /* Because of the horizontal mirror step, we can't process partial iMCUs - * at the (output) bottom edge properly. They just get transposed and - * not mirrored. - */ - MCU_rows = srcinfo->output_width / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[offset_x] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } - } else { - /* Edge blocks are transposed but not mirrored. */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } -} - - -LOCAL(void) -do_rot_180 (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* 180 degree rotation is equivalent to - * 1. Vertical mirroring; - * 2. Horizontal mirroring. - * These two steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JBLOCKROW src_row_ptr, dst_row_ptr; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - MCU_cols = srcinfo->output_width / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - MCU_rows = srcinfo->output_height / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the vertically mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_height - y_crop_blocks - dst_blk_y - - (JDIMENSION) compptr->v_samp_factor, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } else { - /* Bottom-edge rows are only mirrored horizontally. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_y + y_crop_blocks, - (JDIMENSION) compptr->v_samp_factor, FALSE); - } - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - dst_row_ptr = dst_buffer[offset_y]; - if (y_crop_blocks + dst_blk_y < comp_height) { - /* Row is within the mirrorable area. */ - src_row_ptr = src_buffer[compptr->v_samp_factor - offset_y - 1]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - dst_ptr = dst_row_ptr[dst_blk_x]; - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Process the blocks that can be mirrored both ways. */ - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - for (i = 0; i < DCTSIZE; i += 2) { - /* For even row, negate every odd column. */ - for (j = 0; j < DCTSIZE; j += 2) { - *dst_ptr++ = *src_ptr++; - *dst_ptr++ = - *src_ptr++; - } - /* For odd row, negate every even column. */ - for (j = 0; j < DCTSIZE; j += 2) { - *dst_ptr++ = - *src_ptr++; - *dst_ptr++ = *src_ptr++; - } - } - } else { - /* Any remaining right-edge blocks are only mirrored vertically. */ - src_ptr = src_row_ptr[x_crop_blocks + dst_blk_x]; - for (i = 0; i < DCTSIZE; i += 2) { - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = *src_ptr++; - for (j = 0; j < DCTSIZE; j++) - *dst_ptr++ = - *src_ptr++; - } - } - } - } else { - /* Remaining rows are just mirrored horizontally. */ - src_row_ptr = src_buffer[offset_y]; - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; dst_blk_x++) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Process the blocks that can be mirrored. */ - dst_ptr = dst_row_ptr[dst_blk_x]; - src_ptr = src_row_ptr[comp_width - x_crop_blocks - dst_blk_x - 1]; - for (i = 0; i < DCTSIZE2; i += 2) { - *dst_ptr++ = *src_ptr++; - *dst_ptr++ = - *src_ptr++; - } - } else { - /* Any remaining right-edge blocks are only copied. */ - jcopy_block_row(src_row_ptr + dst_blk_x + x_crop_blocks, - dst_row_ptr + dst_blk_x, - (JDIMENSION) 1); - } - } - } - } - } - } -} - - -LOCAL(void) -do_transverse (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JDIMENSION x_crop_offset, JDIMENSION y_crop_offset, - jvirt_barray_ptr *src_coef_arrays, - jvirt_barray_ptr *dst_coef_arrays) -/* Transverse transpose is equivalent to - * 1. 180 degree rotation; - * 2. Transposition; - * or - * 1. Horizontal mirroring; - * 2. Transposition; - * 3. Horizontal mirroring. - * These steps are merged into a single processing routine. - */ -{ - JDIMENSION MCU_cols, MCU_rows, comp_width, comp_height, dst_blk_x, dst_blk_y; - JDIMENSION x_crop_blocks, y_crop_blocks; - int ci, i, j, offset_x, offset_y; - JBLOCKARRAY src_buffer, dst_buffer; - JCOEFPTR src_ptr, dst_ptr; - jpeg_component_info *compptr; - - MCU_cols = srcinfo->output_height / - (dstinfo->max_h_samp_factor * dstinfo->min_DCT_h_scaled_size); - MCU_rows = srcinfo->output_width / - (dstinfo->max_v_samp_factor * dstinfo->min_DCT_v_scaled_size); - - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - comp_width = MCU_cols * compptr->h_samp_factor; - comp_height = MCU_rows * compptr->v_samp_factor; - x_crop_blocks = x_crop_offset * compptr->h_samp_factor; - y_crop_blocks = y_crop_offset * compptr->v_samp_factor; - for (dst_blk_y = 0; dst_blk_y < compptr->height_in_blocks; - dst_blk_y += compptr->v_samp_factor) { - dst_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, dst_coef_arrays[ci], dst_blk_y, - (JDIMENSION) compptr->v_samp_factor, TRUE); - for (offset_y = 0; offset_y < compptr->v_samp_factor; offset_y++) { - for (dst_blk_x = 0; dst_blk_x < compptr->width_in_blocks; - dst_blk_x += compptr->h_samp_factor) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - comp_width - x_crop_blocks - dst_blk_x - - (JDIMENSION) compptr->h_samp_factor, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } else { - src_buffer = (*srcinfo->mem->access_virt_barray) - ((j_common_ptr) srcinfo, src_coef_arrays[ci], - dst_blk_x + x_crop_blocks, - (JDIMENSION) compptr->h_samp_factor, FALSE); - } - for (offset_x = 0; offset_x < compptr->h_samp_factor; offset_x++) { - dst_ptr = dst_buffer[offset_y][dst_blk_x + offset_x]; - if (y_crop_blocks + dst_blk_y < comp_height) { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Block is within the mirrorable area. */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - i++; - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } else { - /* Right-edge blocks are mirrored in y only */ - src_ptr = src_buffer[offset_x] - [comp_height - y_crop_blocks - dst_blk_y - offset_y - 1]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) { - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - j++; - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } - } - } else { - if (x_crop_blocks + dst_blk_x < comp_width) { - /* Bottom-edge blocks are mirrored in x only */ - src_ptr = src_buffer[compptr->h_samp_factor - offset_x - 1] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - i++; - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = -src_ptr[i*DCTSIZE+j]; - } - } else { - /* At lower right corner, just transpose, no mirroring */ - src_ptr = src_buffer[offset_x] - [dst_blk_y + offset_y + y_crop_blocks]; - for (i = 0; i < DCTSIZE; i++) - for (j = 0; j < DCTSIZE; j++) - dst_ptr[j*DCTSIZE+i] = src_ptr[i*DCTSIZE+j]; - } - } - } - } - } - } - } -} - - -/* Parse an unsigned integer: subroutine for jtransform_parse_crop_spec. - * Returns TRUE if valid integer found, FALSE if not. - * *strptr is advanced over the digit string, and *result is set to its value. - */ - -LOCAL(boolean) -jt_read_integer (const char ** strptr, JDIMENSION * result) -{ - const char * ptr = *strptr; - JDIMENSION val = 0; - - for (; isdigit(*ptr); ptr++) { - val = val * 10 + (JDIMENSION) (*ptr - '0'); - } - *result = val; - if (ptr == *strptr) - return FALSE; /* oops, no digits */ - *strptr = ptr; - return TRUE; -} - - -/* Parse a crop specification (written in X11 geometry style). - * The routine returns TRUE if the spec string is valid, FALSE if not. - * - * The crop spec string should have the format - * [f]x[f]{+-}{+-} - * where width, height, xoffset, and yoffset are unsigned integers. - * Each of the elements can be omitted to indicate a default value. - * (A weakness of this style is that it is not possible to omit xoffset - * while specifying yoffset, since they look alike.) - * - * This code is loosely based on XParseGeometry from the X11 distribution. - */ - -GLOBAL(boolean) -jtransform_parse_crop_spec (jpeg_transform_info *info, const char *spec) -{ - info->crop = FALSE; - info->crop_width_set = JCROP_UNSET; - info->crop_height_set = JCROP_UNSET; - info->crop_xoffset_set = JCROP_UNSET; - info->crop_yoffset_set = JCROP_UNSET; - - if (isdigit(*spec)) { - /* fetch width */ - if (! jt_read_integer(&spec, &info->crop_width)) - return FALSE; - if (*spec == 'f' || *spec == 'F') { - spec++; - info->crop_width_set = JCROP_FORCE; - } else - info->crop_width_set = JCROP_POS; - } - if (*spec == 'x' || *spec == 'X') { - /* fetch height */ - spec++; - if (! jt_read_integer(&spec, &info->crop_height)) - return FALSE; - if (*spec == 'f' || *spec == 'F') { - spec++; - info->crop_height_set = JCROP_FORCE; - } else - info->crop_height_set = JCROP_POS; - } - if (*spec == '+' || *spec == '-') { - /* fetch xoffset */ - info->crop_xoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; - spec++; - if (! jt_read_integer(&spec, &info->crop_xoffset)) - return FALSE; - } - if (*spec == '+' || *spec == '-') { - /* fetch yoffset */ - info->crop_yoffset_set = (*spec == '-') ? JCROP_NEG : JCROP_POS; - spec++; - if (! jt_read_integer(&spec, &info->crop_yoffset)) - return FALSE; - } - /* We had better have gotten to the end of the string. */ - if (*spec != '\0') - return FALSE; - info->crop = TRUE; - return TRUE; -} - - -/* Trim off any partial iMCUs on the indicated destination edge */ - -LOCAL(void) -trim_right_edge (jpeg_transform_info *info, JDIMENSION full_width) -{ - JDIMENSION MCU_cols; - - MCU_cols = info->output_width / info->iMCU_sample_width; - if (MCU_cols > 0 && info->x_crop_offset + MCU_cols == - full_width / info->iMCU_sample_width) - info->output_width = MCU_cols * info->iMCU_sample_width; -} - -LOCAL(void) -trim_bottom_edge (jpeg_transform_info *info, JDIMENSION full_height) -{ - JDIMENSION MCU_rows; - - MCU_rows = info->output_height / info->iMCU_sample_height; - if (MCU_rows > 0 && info->y_crop_offset + MCU_rows == - full_height / info->iMCU_sample_height) - info->output_height = MCU_rows * info->iMCU_sample_height; -} - - -/* Request any required workspace. - * - * This routine figures out the size that the output image will be - * (which implies that all the transform parameters must be set before - * it is called). - * - * We allocate the workspace virtual arrays from the source decompression - * object, so that all the arrays (both the original data and the workspace) - * will be taken into account while making memory management decisions. - * Hence, this routine must be called after jpeg_read_header (which reads - * the image dimensions) and before jpeg_read_coefficients (which realizes - * the source's virtual arrays). - * - * This function returns FALSE right away if -perfect is given - * and transformation is not perfect. Otherwise returns TRUE. - */ - -GLOBAL(boolean) -jtransform_request_workspace (j_decompress_ptr srcinfo, - jpeg_transform_info *info) -{ - jvirt_barray_ptr *coef_arrays; - boolean need_workspace, transpose_it; - jpeg_component_info *compptr; - JDIMENSION xoffset, yoffset; - JDIMENSION width_in_iMCUs, height_in_iMCUs; - JDIMENSION width_in_blocks, height_in_blocks; - int ci, h_samp_factor, v_samp_factor; - - /* Determine number of components in output image */ - if (info->force_grayscale && - srcinfo->jpeg_color_space == JCS_YCbCr && - srcinfo->num_components == 3) - /* We'll only process the first component */ - info->num_components = 1; - else - /* Process all the components */ - info->num_components = srcinfo->num_components; - - /* Compute output image dimensions and related values. */ - jpeg_core_output_dimensions(srcinfo); - - /* Return right away if -perfect is given and transformation is not perfect. - */ - if (info->perfect) { - if (info->num_components == 1) { - if (!jtransform_perfect_transform(srcinfo->output_width, - srcinfo->output_height, - srcinfo->min_DCT_h_scaled_size, - srcinfo->min_DCT_v_scaled_size, - info->transform)) - return FALSE; - } else { - if (!jtransform_perfect_transform(srcinfo->output_width, - srcinfo->output_height, - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size, - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size, - info->transform)) - return FALSE; - } - } - - /* If there is only one output component, force the iMCU size to be 1; - * else use the source iMCU size. (This allows us to do the right thing - * when reducing color to grayscale, and also provides a handy way of - * cleaning up "funny" grayscale images whose sampling factors are not 1x1.) - */ - switch (info->transform) { - case JXFORM_TRANSPOSE: - case JXFORM_TRANSVERSE: - case JXFORM_ROT_90: - case JXFORM_ROT_270: - info->output_width = srcinfo->output_height; - info->output_height = srcinfo->output_width; - if (info->num_components == 1) { - info->iMCU_sample_width = srcinfo->min_DCT_v_scaled_size; - info->iMCU_sample_height = srcinfo->min_DCT_h_scaled_size; - } else { - info->iMCU_sample_width = - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; - info->iMCU_sample_height = - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; - } - break; - default: - info->output_width = srcinfo->output_width; - info->output_height = srcinfo->output_height; - if (info->num_components == 1) { - info->iMCU_sample_width = srcinfo->min_DCT_h_scaled_size; - info->iMCU_sample_height = srcinfo->min_DCT_v_scaled_size; - } else { - info->iMCU_sample_width = - srcinfo->max_h_samp_factor * srcinfo->min_DCT_h_scaled_size; - info->iMCU_sample_height = - srcinfo->max_v_samp_factor * srcinfo->min_DCT_v_scaled_size; - } - break; - } - - /* If cropping has been requested, compute the crop area's position and - * dimensions, ensuring that its upper left corner falls at an iMCU boundary. - */ - if (info->crop) { - /* Insert default values for unset crop parameters */ - if (info->crop_xoffset_set == JCROP_UNSET) - info->crop_xoffset = 0; /* default to +0 */ - if (info->crop_yoffset_set == JCROP_UNSET) - info->crop_yoffset = 0; /* default to +0 */ - if (info->crop_xoffset >= info->output_width || - info->crop_yoffset >= info->output_height) - ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); - if (info->crop_width_set == JCROP_UNSET) - info->crop_width = info->output_width - info->crop_xoffset; - if (info->crop_height_set == JCROP_UNSET) - info->crop_height = info->output_height - info->crop_yoffset; - /* Ensure parameters are valid */ - if (info->crop_width <= 0 || info->crop_width > info->output_width || - info->crop_height <= 0 || info->crop_height > info->output_height || - info->crop_xoffset > info->output_width - info->crop_width || - info->crop_yoffset > info->output_height - info->crop_height) - ERREXIT(srcinfo, JERR_BAD_CROP_SPEC); - /* Convert negative crop offsets into regular offsets */ - if (info->crop_xoffset_set == JCROP_NEG) - xoffset = info->output_width - info->crop_width - info->crop_xoffset; - else - xoffset = info->crop_xoffset; - if (info->crop_yoffset_set == JCROP_NEG) - yoffset = info->output_height - info->crop_height - info->crop_yoffset; - else - yoffset = info->crop_yoffset; - /* Now adjust so that upper left corner falls at an iMCU boundary */ - if (info->crop_width_set == JCROP_FORCE) - info->output_width = info->crop_width; - else - info->output_width = - info->crop_width + (xoffset % info->iMCU_sample_width); - if (info->crop_height_set == JCROP_FORCE) - info->output_height = info->crop_height; - else - info->output_height = - info->crop_height + (yoffset % info->iMCU_sample_height); - /* Save x/y offsets measured in iMCUs */ - info->x_crop_offset = xoffset / info->iMCU_sample_width; - info->y_crop_offset = yoffset / info->iMCU_sample_height; - } else { - info->x_crop_offset = 0; - info->y_crop_offset = 0; - } - - /* Figure out whether we need workspace arrays, - * and if so whether they are transposed relative to the source. - */ - need_workspace = FALSE; - transpose_it = FALSE; - switch (info->transform) { - case JXFORM_NONE: - if (info->x_crop_offset != 0 || info->y_crop_offset != 0) - need_workspace = TRUE; - /* No workspace needed if neither cropping nor transforming */ - break; - case JXFORM_FLIP_H: - if (info->trim) - trim_right_edge(info, srcinfo->output_width); - if (info->y_crop_offset != 0) - need_workspace = TRUE; - /* do_flip_h_no_crop doesn't need a workspace array */ - break; - case JXFORM_FLIP_V: - if (info->trim) - trim_bottom_edge(info, srcinfo->output_height); - /* Need workspace arrays having same dimensions as source image. */ - need_workspace = TRUE; - break; - case JXFORM_TRANSPOSE: - /* transpose does NOT have to trim anything */ - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_TRANSVERSE: - if (info->trim) { - trim_right_edge(info, srcinfo->output_height); - trim_bottom_edge(info, srcinfo->output_width); - } - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_ROT_90: - if (info->trim) - trim_right_edge(info, srcinfo->output_height); - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - case JXFORM_ROT_180: - if (info->trim) { - trim_right_edge(info, srcinfo->output_width); - trim_bottom_edge(info, srcinfo->output_height); - } - /* Need workspace arrays having same dimensions as source image. */ - need_workspace = TRUE; - break; - case JXFORM_ROT_270: - if (info->trim) - trim_bottom_edge(info, srcinfo->output_width); - /* Need workspace arrays having transposed dimensions. */ - need_workspace = TRUE; - transpose_it = TRUE; - break; - } - - /* Allocate workspace if needed. - * Note that we allocate arrays padded out to the next iMCU boundary, - * so that transform routines need not worry about missing edge blocks. - */ - if (need_workspace) { - coef_arrays = (jvirt_barray_ptr *) - (*srcinfo->mem->alloc_small) ((j_common_ptr) srcinfo, JPOOL_IMAGE, - SIZEOF(jvirt_barray_ptr) * info->num_components); - width_in_iMCUs = (JDIMENSION) - jdiv_round_up((long) info->output_width, - (long) info->iMCU_sample_width); - height_in_iMCUs = (JDIMENSION) - jdiv_round_up((long) info->output_height, - (long) info->iMCU_sample_height); - for (ci = 0; ci < info->num_components; ci++) { - compptr = srcinfo->comp_info + ci; - if (info->num_components == 1) { - /* we're going to force samp factors to 1x1 in this case */ - h_samp_factor = v_samp_factor = 1; - } else if (transpose_it) { - h_samp_factor = compptr->v_samp_factor; - v_samp_factor = compptr->h_samp_factor; - } else { - h_samp_factor = compptr->h_samp_factor; - v_samp_factor = compptr->v_samp_factor; - } - width_in_blocks = width_in_iMCUs * h_samp_factor; - height_in_blocks = height_in_iMCUs * v_samp_factor; - coef_arrays[ci] = (*srcinfo->mem->request_virt_barray) - ((j_common_ptr) srcinfo, JPOOL_IMAGE, FALSE, - width_in_blocks, height_in_blocks, (JDIMENSION) v_samp_factor); - } - info->workspace_coef_arrays = coef_arrays; - } else - info->workspace_coef_arrays = NULL; - - return TRUE; -} - - -/* Transpose destination image parameters */ - -LOCAL(void) -transpose_critical_parameters (j_compress_ptr dstinfo) -{ - int tblno, i, j, ci, itemp; - jpeg_component_info *compptr; - JQUANT_TBL *qtblptr; - JDIMENSION jtemp; - UINT16 qtemp; - - /* Transpose image dimensions */ - jtemp = dstinfo->image_width; - dstinfo->image_width = dstinfo->image_height; - dstinfo->image_height = jtemp; - itemp = dstinfo->min_DCT_h_scaled_size; - dstinfo->min_DCT_h_scaled_size = dstinfo->min_DCT_v_scaled_size; - dstinfo->min_DCT_v_scaled_size = itemp; - - /* Transpose sampling factors */ - for (ci = 0; ci < dstinfo->num_components; ci++) { - compptr = dstinfo->comp_info + ci; - itemp = compptr->h_samp_factor; - compptr->h_samp_factor = compptr->v_samp_factor; - compptr->v_samp_factor = itemp; - } - - /* Transpose quantization tables */ - for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) { - qtblptr = dstinfo->quant_tbl_ptrs[tblno]; - if (qtblptr != NULL) { - for (i = 0; i < DCTSIZE; i++) { - for (j = 0; j < i; j++) { - qtemp = qtblptr->quantval[i*DCTSIZE+j]; - qtblptr->quantval[i*DCTSIZE+j] = qtblptr->quantval[j*DCTSIZE+i]; - qtblptr->quantval[j*DCTSIZE+i] = qtemp; - } - } - } - } -} - - -/* Adjust Exif image parameters. - * - * We try to adjust the Tags ExifImageWidth and ExifImageHeight if possible. - */ - -LOCAL(void) -adjust_exif_parameters (JOCTET FAR * data, unsigned int length, - JDIMENSION new_width, JDIMENSION new_height) -{ - boolean is_motorola; /* Flag for byte order */ - unsigned int number_of_tags, tagnum; - unsigned int firstoffset, offset; - JDIMENSION new_value; - - if (length < 12) return; /* Length of an IFD entry */ - - /* Discover byte order */ - if (GETJOCTET(data[0]) == 0x49 && GETJOCTET(data[1]) == 0x49) - is_motorola = FALSE; - else if (GETJOCTET(data[0]) == 0x4D && GETJOCTET(data[1]) == 0x4D) - is_motorola = TRUE; - else - return; - - /* Check Tag Mark */ - if (is_motorola) { - if (GETJOCTET(data[2]) != 0) return; - if (GETJOCTET(data[3]) != 0x2A) return; - } else { - if (GETJOCTET(data[3]) != 0) return; - if (GETJOCTET(data[2]) != 0x2A) return; - } - - /* Get first IFD offset (offset to IFD0) */ - if (is_motorola) { - if (GETJOCTET(data[4]) != 0) return; - if (GETJOCTET(data[5]) != 0) return; - firstoffset = GETJOCTET(data[6]); - firstoffset <<= 8; - firstoffset += GETJOCTET(data[7]); - } else { - if (GETJOCTET(data[7]) != 0) return; - if (GETJOCTET(data[6]) != 0) return; - firstoffset = GETJOCTET(data[5]); - firstoffset <<= 8; - firstoffset += GETJOCTET(data[4]); - } - if (firstoffset > length - 2) return; /* check end of data segment */ - - /* Get the number of directory entries contained in this IFD */ - if (is_motorola) { - number_of_tags = GETJOCTET(data[firstoffset]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[firstoffset+1]); - } else { - number_of_tags = GETJOCTET(data[firstoffset+1]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[firstoffset]); - } - if (number_of_tags == 0) return; - firstoffset += 2; - - /* Search for ExifSubIFD offset Tag in IFD0 */ - for (;;) { - if (firstoffset > length - 12) return; /* check end of data segment */ - /* Get Tag number */ - if (is_motorola) { - tagnum = GETJOCTET(data[firstoffset]); - tagnum <<= 8; - tagnum += GETJOCTET(data[firstoffset+1]); - } else { - tagnum = GETJOCTET(data[firstoffset+1]); - tagnum <<= 8; - tagnum += GETJOCTET(data[firstoffset]); - } - if (tagnum == 0x8769) break; /* found ExifSubIFD offset Tag */ - if (--number_of_tags == 0) return; - firstoffset += 12; - } - - /* Get the ExifSubIFD offset */ - if (is_motorola) { - if (GETJOCTET(data[firstoffset+8]) != 0) return; - if (GETJOCTET(data[firstoffset+9]) != 0) return; - offset = GETJOCTET(data[firstoffset+10]); - offset <<= 8; - offset += GETJOCTET(data[firstoffset+11]); - } else { - if (GETJOCTET(data[firstoffset+11]) != 0) return; - if (GETJOCTET(data[firstoffset+10]) != 0) return; - offset = GETJOCTET(data[firstoffset+9]); - offset <<= 8; - offset += GETJOCTET(data[firstoffset+8]); - } - if (offset > length - 2) return; /* check end of data segment */ - - /* Get the number of directory entries contained in this SubIFD */ - if (is_motorola) { - number_of_tags = GETJOCTET(data[offset]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[offset+1]); - } else { - number_of_tags = GETJOCTET(data[offset+1]); - number_of_tags <<= 8; - number_of_tags += GETJOCTET(data[offset]); - } - if (number_of_tags < 2) return; - offset += 2; - - /* Search for ExifImageWidth and ExifImageHeight Tags in this SubIFD */ - do { - if (offset > length - 12) return; /* check end of data segment */ - /* Get Tag number */ - if (is_motorola) { - tagnum = GETJOCTET(data[offset]); - tagnum <<= 8; - tagnum += GETJOCTET(data[offset+1]); - } else { - tagnum = GETJOCTET(data[offset+1]); - tagnum <<= 8; - tagnum += GETJOCTET(data[offset]); - } - if (tagnum == 0xA002 || tagnum == 0xA003) { - if (tagnum == 0xA002) - new_value = new_width; /* ExifImageWidth Tag */ - else - new_value = new_height; /* ExifImageHeight Tag */ - if (is_motorola) { - data[offset+2] = 0; /* Format = unsigned long (4 octets) */ - data[offset+3] = 4; - data[offset+4] = 0; /* Number Of Components = 1 */ - data[offset+5] = 0; - data[offset+6] = 0; - data[offset+7] = 1; - data[offset+8] = 0; - data[offset+9] = 0; - data[offset+10] = (JOCTET)((new_value >> 8) & 0xFF); - data[offset+11] = (JOCTET)(new_value & 0xFF); - } else { - data[offset+2] = 4; /* Format = unsigned long (4 octets) */ - data[offset+3] = 0; - data[offset+4] = 1; /* Number Of Components = 1 */ - data[offset+5] = 0; - data[offset+6] = 0; - data[offset+7] = 0; - data[offset+8] = (JOCTET)(new_value & 0xFF); - data[offset+9] = (JOCTET)((new_value >> 8) & 0xFF); - data[offset+10] = 0; - data[offset+11] = 0; - } - } - offset += 12; - } while (--number_of_tags); -} - - -/* Adjust output image parameters as needed. - * - * This must be called after jpeg_copy_critical_parameters() - * and before jpeg_write_coefficients(). - * - * The return value is the set of virtual coefficient arrays to be written - * (either the ones allocated by jtransform_request_workspace, or the - * original source data arrays). The caller will need to pass this value - * to jpeg_write_coefficients(). - */ - -GLOBAL(jvirt_barray_ptr *) -jtransform_adjust_parameters (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info) -{ - /* If force-to-grayscale is requested, adjust destination parameters */ - if (info->force_grayscale) { - /* First, ensure we have YCbCr or grayscale data, and that the source's - * Y channel is full resolution. (No reasonable person would make Y - * be less than full resolution, so actually coping with that case - * isn't worth extra code space. But we check it to avoid crashing.) - */ - if (((dstinfo->jpeg_color_space == JCS_YCbCr && - dstinfo->num_components == 3) || - (dstinfo->jpeg_color_space == JCS_GRAYSCALE && - dstinfo->num_components == 1)) && - srcinfo->comp_info[0].h_samp_factor == srcinfo->max_h_samp_factor && - srcinfo->comp_info[0].v_samp_factor == srcinfo->max_v_samp_factor) { - /* We use jpeg_set_colorspace to make sure subsidiary settings get fixed - * properly. Among other things, it sets the target h_samp_factor & - * v_samp_factor to 1, which typically won't match the source. - * We have to preserve the source's quantization table number, however. - */ - int sv_quant_tbl_no = dstinfo->comp_info[0].quant_tbl_no; - jpeg_set_colorspace(dstinfo, JCS_GRAYSCALE); - dstinfo->comp_info[0].quant_tbl_no = sv_quant_tbl_no; - } else { - /* Sorry, can't do it */ - ERREXIT(dstinfo, JERR_CONVERSION_NOTIMPL); - } - } else if (info->num_components == 1) { - /* For a single-component source, we force the destination sampling factors - * to 1x1, with or without force_grayscale. This is useful because some - * decoders choke on grayscale images with other sampling factors. - */ - dstinfo->comp_info[0].h_samp_factor = 1; - dstinfo->comp_info[0].v_samp_factor = 1; - } - - /* Correct the destination's image dimensions as necessary - * for rotate/flip, resize, and crop operations. - */ - dstinfo->jpeg_width = info->output_width; - dstinfo->jpeg_height = info->output_height; - - /* Transpose destination image parameters */ - switch (info->transform) { - case JXFORM_TRANSPOSE: - case JXFORM_TRANSVERSE: - case JXFORM_ROT_90: - case JXFORM_ROT_270: - transpose_critical_parameters(dstinfo); - break; - default: - break; - } - - /* Adjust Exif properties */ - if (srcinfo->marker_list != NULL && - srcinfo->marker_list->marker == JPEG_APP0+1 && - srcinfo->marker_list->data_length >= 6 && - GETJOCTET(srcinfo->marker_list->data[0]) == 0x45 && - GETJOCTET(srcinfo->marker_list->data[1]) == 0x78 && - GETJOCTET(srcinfo->marker_list->data[2]) == 0x69 && - GETJOCTET(srcinfo->marker_list->data[3]) == 0x66 && - GETJOCTET(srcinfo->marker_list->data[4]) == 0 && - GETJOCTET(srcinfo->marker_list->data[5]) == 0) { - /* Suppress output of JFIF marker */ - dstinfo->write_JFIF_header = FALSE; - /* Adjust Exif image parameters */ - if (dstinfo->jpeg_width != srcinfo->image_width || - dstinfo->jpeg_height != srcinfo->image_height) - /* Align data segment to start of TIFF structure for parsing */ - adjust_exif_parameters(srcinfo->marker_list->data + 6, - srcinfo->marker_list->data_length - 6, - dstinfo->jpeg_width, dstinfo->jpeg_height); - } - - /* Return the appropriate output data set */ - if (info->workspace_coef_arrays != NULL) - return info->workspace_coef_arrays; - return src_coef_arrays; -} - - -/* Execute the actual transformation, if any. - * - * This must be called *after* jpeg_write_coefficients, because it depends - * on jpeg_write_coefficients to have computed subsidiary values such as - * the per-component width and height fields in the destination object. - * - * Note that some transformations will modify the source data arrays! - */ - -GLOBAL(void) -jtransform_execute_transform (j_decompress_ptr srcinfo, - j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info) -{ - jvirt_barray_ptr *dst_coef_arrays = info->workspace_coef_arrays; - - /* Note: conditions tested here should match those in switch statement - * in jtransform_request_workspace() - */ - switch (info->transform) { - case JXFORM_NONE: - if (info->x_crop_offset != 0 || info->y_crop_offset != 0) - do_crop(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_FLIP_H: - if (info->y_crop_offset != 0) - do_flip_h(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - else - do_flip_h_no_crop(srcinfo, dstinfo, info->x_crop_offset, - src_coef_arrays); - break; - case JXFORM_FLIP_V: - do_flip_v(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_TRANSPOSE: - do_transpose(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_TRANSVERSE: - do_transverse(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_90: - do_rot_90(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_180: - do_rot_180(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - case JXFORM_ROT_270: - do_rot_270(srcinfo, dstinfo, info->x_crop_offset, info->y_crop_offset, - src_coef_arrays, dst_coef_arrays); - break; - } -} - -/* jtransform_perfect_transform - * - * Determine whether lossless transformation is perfectly - * possible for a specified image and transformation. - * - * Inputs: - * image_width, image_height: source image dimensions. - * MCU_width, MCU_height: pixel dimensions of MCU. - * transform: transformation identifier. - * Parameter sources from initialized jpeg_struct - * (after reading source header): - * image_width = cinfo.image_width - * image_height = cinfo.image_height - * MCU_width = cinfo.max_h_samp_factor * cinfo.block_size - * MCU_height = cinfo.max_v_samp_factor * cinfo.block_size - * Result: - * TRUE = perfect transformation possible - * FALSE = perfect transformation not possible - * (may use custom action then) - */ - -GLOBAL(boolean) -jtransform_perfect_transform(JDIMENSION image_width, JDIMENSION image_height, - int MCU_width, int MCU_height, - JXFORM_CODE transform) -{ - boolean result = TRUE; /* initialize TRUE */ - - switch (transform) { - case JXFORM_FLIP_H: - case JXFORM_ROT_270: - if (image_width % (JDIMENSION) MCU_width) - result = FALSE; - break; - case JXFORM_FLIP_V: - case JXFORM_ROT_90: - if (image_height % (JDIMENSION) MCU_height) - result = FALSE; - break; - case JXFORM_TRANSVERSE: - case JXFORM_ROT_180: - if (image_width % (JDIMENSION) MCU_width) - result = FALSE; - if (image_height % (JDIMENSION) MCU_height) - result = FALSE; - break; - default: - break; - } - - return result; -} - -#endif /* TRANSFORMS_SUPPORTED */ - - -/* Setup decompression object to save desired markers in memory. - * This must be called before jpeg_read_header() to have the desired effect. - */ - -GLOBAL(void) -jcopy_markers_setup (j_decompress_ptr srcinfo, JCOPY_OPTION option) -{ -#ifdef SAVE_MARKERS_SUPPORTED - int m; - - /* Save comments except under NONE option */ - if (option != JCOPYOPT_NONE) { - jpeg_save_markers(srcinfo, JPEG_COM, 0xFFFF); - } - /* Save all types of APPn markers iff ALL option */ - if (option == JCOPYOPT_ALL) { - for (m = 0; m < 16; m++) - jpeg_save_markers(srcinfo, JPEG_APP0 + m, 0xFFFF); - } -#endif /* SAVE_MARKERS_SUPPORTED */ -} - -/* Copy markers saved in the given source object to the destination object. - * This should be called just after jpeg_start_compress() or - * jpeg_write_coefficients(). - * Note that those routines will have written the SOI, and also the - * JFIF APP0 or Adobe APP14 markers if selected. - */ - -GLOBAL(void) -jcopy_markers_execute (j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JCOPY_OPTION option) -{ - jpeg_saved_marker_ptr marker; - - /* In the current implementation, we don't actually need to examine the - * option flag here; we just copy everything that got saved. - * But to avoid confusion, we do not output JFIF and Adobe APP14 markers - * if the encoder library already wrote one. - */ - for (marker = srcinfo->marker_list; marker != NULL; marker = marker->next) { - if (dstinfo->write_JFIF_header && - marker->marker == JPEG_APP0 && - marker->data_length >= 5 && - GETJOCTET(marker->data[0]) == 0x4A && - GETJOCTET(marker->data[1]) == 0x46 && - GETJOCTET(marker->data[2]) == 0x49 && - GETJOCTET(marker->data[3]) == 0x46 && - GETJOCTET(marker->data[4]) == 0) - continue; /* reject duplicate JFIF */ - if (dstinfo->write_Adobe_marker && - marker->marker == JPEG_APP0+14 && - marker->data_length >= 5 && - GETJOCTET(marker->data[0]) == 0x41 && - GETJOCTET(marker->data[1]) == 0x64 && - GETJOCTET(marker->data[2]) == 0x6F && - GETJOCTET(marker->data[3]) == 0x62 && - GETJOCTET(marker->data[4]) == 0x65) - continue; /* reject duplicate Adobe */ -#ifdef NEED_FAR_POINTERS - /* We could use jpeg_write_marker if the data weren't FAR... */ - { - unsigned int i; - jpeg_write_m_header(dstinfo, marker->marker, marker->data_length); - for (i = 0; i < marker->data_length; i++) - jpeg_write_m_byte(dstinfo, marker->data[i]); - } -#else - jpeg_write_marker(dstinfo, marker->marker, - marker->data, marker->data_length); -#endif - } -} diff --git a/jpeg/transupp.h b/jpeg/transupp.h deleted file mode 100755 index 9aa0af3..0000000 --- a/jpeg/transupp.h +++ /dev/null @@ -1,213 +0,0 @@ -/* - * transupp.h - * - * Copyright (C) 1997-2011, Thomas G. Lane, Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains declarations for image transformation routines and - * other utility code used by the jpegtran sample application. These are - * NOT part of the core JPEG library. But we keep these routines separate - * from jpegtran.c to ease the task of maintaining jpegtran-like programs - * that have other user interfaces. - * - * NOTE: all the routines declared here have very specific requirements - * about when they are to be executed during the reading and writing of the - * source and destination files. See the comments in transupp.c, or see - * jpegtran.c for an example of correct usage. - */ - -/* If you happen not to want the image transform support, disable it here */ -#ifndef TRANSFORMS_SUPPORTED -#define TRANSFORMS_SUPPORTED 1 /* 0 disables transform code */ -#endif - -/* - * Although rotating and flipping data expressed as DCT coefficients is not - * hard, there is an asymmetry in the JPEG format specification for images - * whose dimensions aren't multiples of the iMCU size. The right and bottom - * image edges are padded out to the next iMCU boundary with junk data; but - * no padding is possible at the top and left edges. If we were to flip - * the whole image including the pad data, then pad garbage would become - * visible at the top and/or left, and real pixels would disappear into the - * pad margins --- perhaps permanently, since encoders & decoders may not - * bother to preserve DCT blocks that appear to be completely outside the - * nominal image area. So, we have to exclude any partial iMCUs from the - * basic transformation. - * - * Transpose is the only transformation that can handle partial iMCUs at the - * right and bottom edges completely cleanly. flip_h can flip partial iMCUs - * at the bottom, but leaves any partial iMCUs at the right edge untouched. - * Similarly flip_v leaves any partial iMCUs at the bottom edge untouched. - * The other transforms are defined as combinations of these basic transforms - * and process edge blocks in a way that preserves the equivalence. - * - * The "trim" option causes untransformable partial iMCUs to be dropped; - * this is not strictly lossless, but it usually gives the best-looking - * result for odd-size images. Note that when this option is active, - * the expected mathematical equivalences between the transforms may not hold. - * (For example, -rot 270 -trim trims only the bottom edge, but -rot 90 -trim - * followed by -rot 180 -trim trims both edges.) - * - * We also offer a lossless-crop option, which discards data outside a given - * image region but losslessly preserves what is inside. Like the rotate and - * flip transforms, lossless crop is restricted by the JPEG format: the upper - * left corner of the selected region must fall on an iMCU boundary. If this - * does not hold for the given crop parameters, we silently move the upper left - * corner up and/or left to make it so, simultaneously increasing the region - * dimensions to keep the lower right crop corner unchanged. (Thus, the - * output image covers at least the requested region, but may cover more.) - * The adjustment of the region dimensions may be optionally disabled. - * - * We also provide a lossless-resize option, which is kind of a lossless-crop - * operation in the DCT coefficient block domain - it discards higher-order - * coefficients and losslessly preserves lower-order coefficients of a - * sub-block. - * - * Rotate/flip transform, resize, and crop can be requested together in a - * single invocation. The crop is applied last --- that is, the crop region - * is specified in terms of the destination image after transform/resize. - * - * We also offer a "force to grayscale" option, which simply discards the - * chrominance channels of a YCbCr image. This is lossless in the sense that - * the luminance channel is preserved exactly. It's not the same kind of - * thing as the rotate/flip transformations, but it's convenient to handle it - * as part of this package, mainly because the transformation routines have to - * be aware of the option to know how many components to work on. - */ - - -/* Short forms of external names for systems with brain-damaged linkers. */ - -#ifdef NEED_SHORT_EXTERNAL_NAMES -#define jtransform_parse_crop_spec jTrParCrop -#define jtransform_request_workspace jTrRequest -#define jtransform_adjust_parameters jTrAdjust -#define jtransform_execute_transform jTrExec -#define jtransform_perfect_transform jTrPerfect -#define jcopy_markers_setup jCMrkSetup -#define jcopy_markers_execute jCMrkExec -#endif /* NEED_SHORT_EXTERNAL_NAMES */ - - -/* - * Codes for supported types of image transformations. - */ - -typedef enum { - JXFORM_NONE, /* no transformation */ - JXFORM_FLIP_H, /* horizontal flip */ - JXFORM_FLIP_V, /* vertical flip */ - JXFORM_TRANSPOSE, /* transpose across UL-to-LR axis */ - JXFORM_TRANSVERSE, /* transpose across UR-to-LL axis */ - JXFORM_ROT_90, /* 90-degree clockwise rotation */ - JXFORM_ROT_180, /* 180-degree rotation */ - JXFORM_ROT_270 /* 270-degree clockwise (or 90 ccw) */ -} JXFORM_CODE; - -/* - * Codes for crop parameters, which can individually be unspecified, - * positive or negative for xoffset or yoffset, - * positive or forced for width or height. - */ - -typedef enum { - JCROP_UNSET, - JCROP_POS, - JCROP_NEG, - JCROP_FORCE -} JCROP_CODE; - -/* - * Transform parameters struct. - * NB: application must not change any elements of this struct after - * calling jtransform_request_workspace. - */ - -typedef struct { - /* Options: set by caller */ - JXFORM_CODE transform; /* image transform operator */ - boolean perfect; /* if TRUE, fail if partial MCUs are requested */ - boolean trim; /* if TRUE, trim partial MCUs as needed */ - boolean force_grayscale; /* if TRUE, convert color image to grayscale */ - boolean crop; /* if TRUE, crop source image */ - - /* Crop parameters: application need not set these unless crop is TRUE. - * These can be filled in by jtransform_parse_crop_spec(). - */ - JDIMENSION crop_width; /* Width of selected region */ - JCROP_CODE crop_width_set; /* (forced disables adjustment) */ - JDIMENSION crop_height; /* Height of selected region */ - JCROP_CODE crop_height_set; /* (forced disables adjustment) */ - JDIMENSION crop_xoffset; /* X offset of selected region */ - JCROP_CODE crop_xoffset_set; /* (negative measures from right edge) */ - JDIMENSION crop_yoffset; /* Y offset of selected region */ - JCROP_CODE crop_yoffset_set; /* (negative measures from bottom edge) */ - - /* Internal workspace: caller should not touch these */ - int num_components; /* # of components in workspace */ - jvirt_barray_ptr * workspace_coef_arrays; /* workspace for transformations */ - JDIMENSION output_width; /* cropped destination dimensions */ - JDIMENSION output_height; - JDIMENSION x_crop_offset; /* destination crop offsets measured in iMCUs */ - JDIMENSION y_crop_offset; - int iMCU_sample_width; /* destination iMCU size */ - int iMCU_sample_height; -} jpeg_transform_info; - - -#if TRANSFORMS_SUPPORTED - -/* Parse a crop specification (written in X11 geometry style) */ -EXTERN(boolean) jtransform_parse_crop_spec - JPP((jpeg_transform_info *info, const char *spec)); -/* Request any required workspace */ -EXTERN(boolean) jtransform_request_workspace - JPP((j_decompress_ptr srcinfo, jpeg_transform_info *info)); -/* Adjust output image parameters */ -EXTERN(jvirt_barray_ptr *) jtransform_adjust_parameters - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); -/* Execute the actual transformation, if any */ -EXTERN(void) jtransform_execute_transform - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - jvirt_barray_ptr *src_coef_arrays, - jpeg_transform_info *info)); -/* Determine whether lossless transformation is perfectly - * possible for a specified image and transformation. - */ -EXTERN(boolean) jtransform_perfect_transform - JPP((JDIMENSION image_width, JDIMENSION image_height, - int MCU_width, int MCU_height, - JXFORM_CODE transform)); - -/* jtransform_execute_transform used to be called - * jtransform_execute_transformation, but some compilers complain about - * routine names that long. This macro is here to avoid breaking any - * old source code that uses the original name... - */ -#define jtransform_execute_transformation jtransform_execute_transform - -#endif /* TRANSFORMS_SUPPORTED */ - - -/* - * Support for copying optional markers from source to destination file. - */ - -typedef enum { - JCOPYOPT_NONE, /* copy no optional markers */ - JCOPYOPT_COMMENTS, /* copy only comment (COM) markers */ - JCOPYOPT_ALL /* copy all optional markers */ -} JCOPY_OPTION; - -#define JCOPYOPT_DEFAULT JCOPYOPT_COMMENTS /* recommended default */ - -/* Setup decompression object to save desired markers in memory */ -EXTERN(void) jcopy_markers_setup - JPP((j_decompress_ptr srcinfo, JCOPY_OPTION option)); -/* Copy markers saved in the given source object to the destination object */ -EXTERN(void) jcopy_markers_execute - JPP((j_decompress_ptr srcinfo, j_compress_ptr dstinfo, - JCOPY_OPTION option)); diff --git a/jpeg/usage.txt b/jpeg/usage.txt deleted file mode 100755 index de9def7..0000000 --- a/jpeg/usage.txt +++ /dev/null @@ -1,637 +0,0 @@ -USAGE instructions for the Independent JPEG Group's JPEG software -================================================================= - -This file describes usage of the JPEG conversion programs cjpeg and djpeg, -as well as the utility programs jpegtran, rdjpgcom and wrjpgcom. (See -the other documentation files if you wish to use the JPEG library within -your own programs.) - -If you are on a Unix machine you may prefer to read the Unix-style manual -pages in files cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1. - - -INTRODUCTION - -These programs implement JPEG image encoding, decoding, and transcoding. -JPEG (pronounced "jay-peg") is a standardized compression method for -full-color and gray-scale images. - - -GENERAL USAGE - -We provide two programs, cjpeg to compress an image file into JPEG format, -and djpeg to decompress a JPEG file back into a conventional image format. - -On Unix-like systems, you say: - cjpeg [switches] [imagefile] >jpegfile -or - djpeg [switches] [jpegfile] >imagefile -The programs read the specified input file, or standard input if none is -named. They always write to standard output (with trace/error messages to -standard error). These conventions are handy for piping images between -programs. - -On most non-Unix systems, you say: - cjpeg [switches] imagefile jpegfile -or - djpeg [switches] jpegfile imagefile -i.e., both the input and output files are named on the command line. This -style is a little more foolproof, and it loses no functionality if you don't -have pipes. (You can get this style on Unix too, if you prefer, by defining -TWO_FILE_COMMANDLINE when you compile the programs; see install.txt.) - -You can also say: - cjpeg [switches] -outfile jpegfile imagefile -or - djpeg [switches] -outfile imagefile jpegfile -This syntax works on all systems, so it is useful for scripts. - -The currently supported image file formats are: PPM (PBMPLUS color format), -PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster Toolkit -format). (RLE is supported only if the URT library is available.) -cjpeg recognizes the input image format automatically, with the exception -of some Targa-format files. You have to tell djpeg which format to generate. - -JPEG files are in the defacto standard JFIF file format. There are other, -less widely used JPEG-based file formats, but we don't support them. - -All switch names may be abbreviated; for example, -grayscale may be written --gray or -gr. Most of the "basic" switches can be abbreviated to as little as -one letter. Upper and lower case are equivalent (-BMP is the same as -bmp). -British spellings are also accepted (e.g., -greyscale), though for brevity -these are not mentioned below. - - -CJPEG DETAILS - -The basic command line switches for cjpeg are: - - -quality N[,...] Scale quantization tables to adjust image quality. - Quality is 0 (worst) to 100 (best); default is 75. - (See below for more info.) - - -grayscale Create monochrome JPEG file from color input. - Be sure to use this switch when compressing a grayscale - BMP file, because cjpeg isn't bright enough to notice - whether a BMP file uses only shades of gray. By - saying -grayscale, you'll get a smaller JPEG file that - takes less time to process. - - -rgb Create RGB JPEG file. - Using this switch suppresses the conversion from RGB - colorspace input to the default YCbCr JPEG colorspace. - Use this switch in combination with the -block N - switch (see below) for lossless JPEG coding. - - -optimize Perform optimization of entropy encoding parameters. - Without this, default encoding parameters are used. - -optimize usually makes the JPEG file a little smaller, - but cjpeg runs somewhat slower and needs much more - memory. Image quality and speed of decompression are - unaffected by -optimize. - - -progressive Create progressive JPEG file (see below). - - -scale M/N Scale the output image by a factor M/N. Currently - supported scale factors are M/N with all N from 1 to - 16, where M is the destination DCT size, which is 8 by - default (see -block N switch below). - - -targa Input file is Targa format. Targa files that contain - an "identification" field will not be automatically - recognized by cjpeg; for such files you must specify - -targa to make cjpeg treat the input as Targa format. - For most Targa files, you won't need this switch. - -The -quality switch lets you trade off compressed file size against quality of -the reconstructed image: the higher the quality setting, the larger the JPEG -file, and the closer the output image will be to the original input. Normally -you want to use the lowest quality setting (smallest file) that decompresses -into something visually indistinguishable from the original image. For this -purpose the quality setting should be between 50 and 95; the default of 75 is -often about right. If you see defects at -quality 75, then go up 5 or 10 -counts at a time until you are happy with the output image. (The optimal -setting will vary from one image to another.) - --quality 100 will generate a quantization table of all 1's, minimizing loss -in the quantization step (but there is still information loss in subsampling, -as well as roundoff error). This setting is mainly of interest for -experimental purposes. Quality values above about 95 are NOT recommended for -normal use; the compressed file size goes up dramatically for hardly any gain -in output image quality. - -In the other direction, quality values below 50 will produce very small files -of low image quality. Settings around 5 to 10 might be useful in preparing an -index of a large image library, for example. Try -quality 2 (or so) for some -amusing Cubist effects. (Note: quality values below about 25 generate 2-byte -quantization tables, which are considered optional in the JPEG standard. -cjpeg emits a warning message when you give such a quality value, because some -other JPEG programs may be unable to decode the resulting file. Use -baseline -if you need to ensure compatibility at low quality values.) - -The -quality option has been extended in IJG version 7 for support of separate -quality settings for luminance and chrominance (or in general, for every -provided quantization table slot). This feature is useful for high-quality -applications which cannot accept the damage of color data by coarse -subsampling settings. You can now easily reduce the color data amount more -smoothly with finer control without separate subsampling. The resulting file -is fully compliant with standard JPEG decoders. -Note that the -quality ratings refer to the quantization table slots, and that -the last value is replicated if there are more q-table slots than parameters. -The default q-table slots are 0 for luminance and 1 for chrominance with -default tables as given in the JPEG standard. This is compatible with the old -behaviour in case that only one parameter is given, which is then used for -both luminance and chrominance (slots 0 and 1). More or custom quantization -tables can be set with -qtables and assigned to components with -qslots -parameter (see the "wizard" switches below). -CAUTION: You must explicitly add -sample 1x1 for efficient separate color -quality selection, since the default value used by library is 2x2! - -The -progressive switch creates a "progressive JPEG" file. In this type of -JPEG file, the data is stored in multiple scans of increasing quality. If the -file is being transmitted over a slow communications link, the decoder can use -the first scan to display a low-quality image very quickly, and can then -improve the display with each subsequent scan. The final image is exactly -equivalent to a standard JPEG file of the same quality setting, and the total -file size is about the same --- often a little smaller. - -Switches for advanced users: - - -arithmetic Use arithmetic coding. CAUTION: arithmetic coded JPEG - is not yet widely implemented, so many decoders will - be unable to view an arithmetic coded JPEG file at - all. - - -block N Set DCT block size. All N from 1 to 16 are possible. - Default is 8 (baseline format). - Larger values produce higher compression, - smaller values produce higher quality - (exact DCT stage possible with 1 or 2; with the - default quality of 75 and default Luminance qtable - the DCT+Quantization stage is lossless for N=1). - CAUTION: An implementation of the JPEG SmartScale - extension is required for this feature. SmartScale - enabled JPEG is not yet widely implemented, so many - decoders will be unable to view a SmartScale extended - JPEG file at all. - - -dct int Use integer DCT method (default). - -dct fast Use fast integer DCT (less accurate). - -dct float Use floating-point DCT method. - The float method is very slightly more accurate than - the int method, but is much slower unless your machine - has very fast floating-point hardware. Also note that - results of the floating-point method may vary slightly - across machines, while the integer methods should give - the same results everywhere. The fast integer method - is much less accurate than the other two. - - -nosmooth Don't use high-quality downsampling. - - -restart N Emit a JPEG restart marker every N MCU rows, or every - N MCU blocks if "B" is attached to the number. - -restart 0 (the default) means no restart markers. - - -smooth N Smooth the input image to eliminate dithering noise. - N, ranging from 1 to 100, indicates the strength of - smoothing. 0 (the default) means no smoothing. - - -maxmemory N Set limit for amount of memory to use in processing - large images. Value is in thousands of bytes, or - millions of bytes if "M" is attached to the number. - For example, -max 4m selects 4000000 bytes. If more - space is needed, temporary files will be used. - - -verbose Enable debug printout. More -v's give more printout. - or -debug Also, version information is printed at startup. - -The -restart option inserts extra markers that allow a JPEG decoder to -resynchronize after a transmission error. Without restart markers, any damage -to a compressed file will usually ruin the image from the point of the error -to the end of the image; with restart markers, the damage is usually confined -to the portion of the image up to the next restart marker. Of course, the -restart markers occupy extra space. We recommend -restart 1 for images that -will be transmitted across unreliable networks such as Usenet. - -The -smooth option filters the input to eliminate fine-scale noise. This is -often useful when converting dithered images to JPEG: a moderate smoothing -factor of 10 to 50 gets rid of dithering patterns in the input file, resulting -in a smaller JPEG file and a better-looking image. Too large a smoothing -factor will visibly blur the image, however. - -Switches for wizards: - - -baseline Force baseline-compatible quantization tables to be - generated. This clamps quantization values to 8 bits - even at low quality settings. (This switch is poorly - named, since it does not ensure that the output is - actually baseline JPEG. For example, you can use - -baseline and -progressive together.) - - -qtables file Use the quantization tables given in the specified - text file. - - -qslots N[,...] Select which quantization table to use for each color - component. - - -sample HxV[,...] Set JPEG sampling factors for each color component. - - -scans file Use the scan script given in the specified text file. - -The "wizard" switches are intended for experimentation with JPEG. If you -don't know what you are doing, DON'T USE THEM. These switches are documented -further in the file wizard.txt. - - -DJPEG DETAILS - -The basic command line switches for djpeg are: - - -colors N Reduce image to at most N colors. This reduces the - or -quantize N number of colors used in the output image, so that it - can be displayed on a colormapped display or stored in - a colormapped file format. For example, if you have - an 8-bit display, you'd need to reduce to 256 or fewer - colors. (-colors is the recommended name, -quantize - is provided only for backwards compatibility.) - - -fast Select recommended processing options for fast, low - quality output. (The default options are chosen for - highest quality output.) Currently, this is equivalent - to "-dct fast -nosmooth -onepass -dither ordered". - - -grayscale Force gray-scale output even if JPEG file is color. - Useful for viewing on monochrome displays; also, - djpeg runs noticeably faster in this mode. - - -scale M/N Scale the output image by a factor M/N. Currently - supported scale factors are M/N with all M from 1 to - 16, where N is the source DCT size, which is 8 for - baseline JPEG. If the /N part is omitted, then M - specifies the DCT scaled size to be applied on the - given input. For baseline JPEG this is equivalent to - M/8 scaling, since the source DCT size for baseline - JPEG is 8. Scaling is handy if the image is larger - than your screen; also, djpeg runs much faster when - scaling down the output. - - -bmp Select BMP output format (Windows flavor). 8-bit - colormapped format is emitted if -colors or -grayscale - is specified, or if the JPEG file is gray-scale; - otherwise, 24-bit full-color format is emitted. - - -gif Select GIF output format. Since GIF does not support - more than 256 colors, -colors 256 is assumed (unless - you specify a smaller number of colors). If you - specify -fast, the default number of colors is 216. - - -os2 Select BMP output format (OS/2 1.x flavor). 8-bit - colormapped format is emitted if -colors or -grayscale - is specified, or if the JPEG file is gray-scale; - otherwise, 24-bit full-color format is emitted. - - -pnm Select PBMPLUS (PPM/PGM) output format (this is the - default format). PGM is emitted if the JPEG file is - gray-scale or if -grayscale is specified; otherwise - PPM is emitted. - - -rle Select RLE output format. (Requires URT library.) - - -targa Select Targa output format. Gray-scale format is - emitted if the JPEG file is gray-scale or if - -grayscale is specified; otherwise, colormapped format - is emitted if -colors is specified; otherwise, 24-bit - full-color format is emitted. - -Switches for advanced users: - - -dct int Use integer DCT method (default). - -dct fast Use fast integer DCT (less accurate). - -dct float Use floating-point DCT method. - The float method is very slightly more accurate than - the int method, but is much slower unless your machine - has very fast floating-point hardware. Also note that - results of the floating-point method may vary slightly - across machines, while the integer methods should give - the same results everywhere. The fast integer method - is much less accurate than the other two. - - -dither fs Use Floyd-Steinberg dithering in color quantization. - -dither ordered Use ordered dithering in color quantization. - -dither none Do not use dithering in color quantization. - By default, Floyd-Steinberg dithering is applied when - quantizing colors; this is slow but usually produces - the best results. Ordered dither is a compromise - between speed and quality; no dithering is fast but - usually looks awful. Note that these switches have - no effect unless color quantization is being done. - Ordered dither is only available in -onepass mode. - - -map FILE Quantize to the colors used in the specified image - file. This is useful for producing multiple files - with identical color maps, or for forcing a predefined - set of colors to be used. The FILE must be a GIF - or PPM file. This option overrides -colors and - -onepass. - - -nosmooth Don't use high-quality upsampling. - - -onepass Use one-pass instead of two-pass color quantization. - The one-pass method is faster and needs less memory, - but it produces a lower-quality image. -onepass is - ignored unless you also say -colors N. Also, - the one-pass method is always used for gray-scale - output (the two-pass method is no improvement then). - - -maxmemory N Set limit for amount of memory to use in processing - large images. Value is in thousands of bytes, or - millions of bytes if "M" is attached to the number. - For example, -max 4m selects 4000000 bytes. If more - space is needed, temporary files will be used. - - -verbose Enable debug printout. More -v's give more printout. - or -debug Also, version information is printed at startup. - - -HINTS FOR CJPEG - -Color GIF files are not the ideal input for JPEG; JPEG is really intended for -compressing full-color (24-bit) images. In particular, don't try to convert -cartoons, line drawings, and other images that have only a few distinct -colors. GIF works great on these, JPEG does not. If you want to convert a -GIF to JPEG, you should experiment with cjpeg's -quality and -smooth options -to get a satisfactory conversion. -smooth 10 or so is often helpful. - -Avoid running an image through a series of JPEG compression/decompression -cycles. Image quality loss will accumulate; after ten or so cycles the image -may be noticeably worse than it was after one cycle. It's best to use a -lossless format while manipulating an image, then convert to JPEG format when -you are ready to file the image away. - -The -optimize option to cjpeg is worth using when you are making a "final" -version for posting or archiving. It's also a win when you are using low -quality settings to make very small JPEG files; the percentage improvement -is often a lot more than it is on larger files. (At present, -optimize -mode is always selected when generating progressive JPEG files.) - -GIF input files are no longer supported, to avoid the Unisys LZW patent. -(Conversion of GIF files to JPEG is usually a bad idea anyway.) - - -HINTS FOR DJPEG - -To get a quick preview of an image, use the -grayscale and/or -scale switches. -"-grayscale -scale 1/8" is the fastest case. - -Several options are available that trade off image quality to gain speed. -"-fast" turns on the recommended settings. - -"-dct fast" and/or "-nosmooth" gain speed at a small sacrifice in quality. -When producing a color-quantized image, "-onepass -dither ordered" is fast but -much lower quality than the default behavior. "-dither none" may give -acceptable results in two-pass mode, but is seldom tolerable in one-pass mode. - -If you are fortunate enough to have very fast floating point hardware, -"-dct float" may be even faster than "-dct fast". But on most machines -"-dct float" is slower than "-dct int"; in this case it is not worth using, -because its theoretical accuracy advantage is too small to be significant -in practice. - -Two-pass color quantization requires a good deal of memory; on MS-DOS machines -it may run out of memory even with -maxmemory 0. In that case you can still -decompress, with some loss of image quality, by specifying -onepass for -one-pass quantization. - -To avoid the Unisys LZW patent, djpeg produces uncompressed GIF files. These -are larger than they should be, but are readable by standard GIF decoders. - - -HINTS FOR BOTH PROGRAMS - -If more space is needed than will fit in the available main memory (as -determined by -maxmemory), temporary files will be used. (MS-DOS versions -will try to get extended or expanded memory first.) The temporary files are -often rather large: in typical cases they occupy three bytes per pixel, for -example 3*800*600 = 1.44Mb for an 800x600 image. If you don't have enough -free disk space, leave out -progressive and -optimize (for cjpeg) or specify --onepass (for djpeg). - -On MS-DOS, the temporary files are created in the directory named by the TMP -or TEMP environment variable, or in the current directory if neither of those -exist. Amiga implementations put the temp files in the directory named by -JPEGTMP:, so be sure to assign JPEGTMP: to a disk partition with adequate free -space. - -The default memory usage limit (-maxmemory) is set when the software is -compiled. If you get an "insufficient memory" error, try specifying a smaller --maxmemory value, even -maxmemory 0 to use the absolute minimum space. You -may want to recompile with a smaller default value if this happens often. - -On machines that have "environment" variables, you can define the environment -variable JPEGMEM to set the default memory limit. The value is specified as -described for the -maxmemory switch. JPEGMEM overrides the default value -specified when the program was compiled, and itself is overridden by an -explicit -maxmemory switch. - -On MS-DOS machines, -maxmemory is the amount of main (conventional) memory to -use. (Extended or expanded memory is also used if available.) Most -DOS-specific versions of this software do their own memory space estimation -and do not need you to specify -maxmemory. - - -JPEGTRAN - -jpegtran performs various useful transformations of JPEG files. -It can translate the coded representation from one variant of JPEG to another, -for example from baseline JPEG to progressive JPEG or vice versa. It can also -perform some rearrangements of the image data, for example turning an image -from landscape to portrait format by rotation. - -jpegtran works by rearranging the compressed data (DCT coefficients), without -ever fully decoding the image. Therefore, its transformations are lossless: -there is no image degradation at all, which would not be true if you used -djpeg followed by cjpeg to accomplish the same conversion. But by the same -token, jpegtran cannot perform lossy operations such as changing the image -quality. - -jpegtran uses a command line syntax similar to cjpeg or djpeg. -On Unix-like systems, you say: - jpegtran [switches] [inputfile] >outputfile -On most non-Unix systems, you say: - jpegtran [switches] inputfile outputfile -where both the input and output files are JPEG files. - -To specify the coded JPEG representation used in the output file, -jpegtran accepts a subset of the switches recognized by cjpeg: - -optimize Perform optimization of entropy encoding parameters. - -progressive Create progressive JPEG file. - -arithmetic Use arithmetic coding. - -restart N Emit a JPEG restart marker every N MCU rows, or every - N MCU blocks if "B" is attached to the number. - -scans file Use the scan script given in the specified text file. -See the previous discussion of cjpeg for more details about these switches. -If you specify none of these switches, you get a plain baseline-JPEG output -file. The quality setting and so forth are determined by the input file. - -The image can be losslessly transformed by giving one of these switches: - -flip horizontal Mirror image horizontally (left-right). - -flip vertical Mirror image vertically (top-bottom). - -rotate 90 Rotate image 90 degrees clockwise. - -rotate 180 Rotate image 180 degrees. - -rotate 270 Rotate image 270 degrees clockwise (or 90 ccw). - -transpose Transpose image (across UL-to-LR axis). - -transverse Transverse transpose (across UR-to-LL axis). - -The transpose transformation has no restrictions regarding image dimensions. -The other transformations operate rather oddly if the image dimensions are not -a multiple of the iMCU size (usually 8 or 16 pixels), because they can only -transform complete blocks of DCT coefficient data in the desired way. - -jpegtran's default behavior when transforming an odd-size image is designed -to preserve exact reversibility and mathematical consistency of the -transformation set. As stated, transpose is able to flip the entire image -area. Horizontal mirroring leaves any partial iMCU column at the right edge -untouched, but is able to flip all rows of the image. Similarly, vertical -mirroring leaves any partial iMCU row at the bottom edge untouched, but is -able to flip all columns. The other transforms can be built up as sequences -of transpose and flip operations; for consistency, their actions on edge -pixels are defined to be the same as the end result of the corresponding -transpose-and-flip sequence. - -For practical use, you may prefer to discard any untransformable edge pixels -rather than having a strange-looking strip along the right and/or bottom edges -of a transformed image. To do this, add the -trim switch: - -trim Drop non-transformable edge blocks. -Obviously, a transformation with -trim is not reversible, so strictly speaking -jpegtran with this switch is not lossless. Also, the expected mathematical -equivalences between the transformations no longer hold. For example, -"-rot 270 -trim" trims only the bottom edge, but "-rot 90 -trim" followed by -"-rot 180 -trim" trims both edges. - -If you are only interested in perfect transformation, add the -perfect switch: - -perfect Fails with an error if the transformation is not - perfect. -For example you may want to do - jpegtran -rot 90 -perfect foo.jpg || djpeg foo.jpg | pnmflip -r90 | cjpeg -to do a perfect rotation if available or an approximated one if not. - -We also offer a lossless-crop option, which discards data outside a given -image region but losslessly preserves what is inside. Like the rotate and -flip transforms, lossless crop is restricted by the current JPEG format: the -upper left corner of the selected region must fall on an iMCU boundary. If -this does not hold for the given crop parameters, we silently move the upper -left corner up and/or left to make it so, simultaneously increasing the region -dimensions to keep the lower right crop corner unchanged. (Thus, the output -image covers at least the requested region, but may cover more.) - -The image can be losslessly cropped by giving the switch: - -crop WxH+X+Y Crop to a rectangular subarea of width W, height H - starting at point X,Y. - -Other not-strictly-lossless transformation switches are: - - -grayscale Force grayscale output. -This option discards the chrominance channels if the input image is YCbCr -(ie, a standard color JPEG), resulting in a grayscale JPEG file. The -luminance channel is preserved exactly, so this is a better method of reducing -to grayscale than decompression, conversion, and recompression. This switch -is particularly handy for fixing a monochrome picture that was mistakenly -encoded as a color JPEG. (In such a case, the space savings from getting rid -of the near-empty chroma channels won't be large; but the decoding time for -a grayscale JPEG is substantially less than that for a color JPEG.) - - -scale M/N Scale the output image by a factor M/N. -Currently supported scale factors are M/N with all M from 1 to 16, where N is -the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, -then M specifies the DCT scaled size to be applied on the given input. For -baseline JPEG this is equivalent to M/8 scaling, since the source DCT size -for baseline JPEG is 8. CAUTION: An implementation of the JPEG SmartScale -extension is required for this feature. SmartScale enabled JPEG is not yet -widely implemented, so many decoders will be unable to view a SmartScale -extended JPEG file at all. - -jpegtran also recognizes these switches that control what to do with "extra" -markers, such as comment blocks: - -copy none Copy no extra markers from source file. This setting - suppresses all comments and other excess baggage - present in the source file. - -copy comments Copy only comment markers. This setting copies - comments from the source file, but discards - any other inessential (for image display) data. - -copy all Copy all extra markers. This setting preserves - miscellaneous markers found in the source file, such - as JFIF thumbnails, Exif data, and Photoshop settings. - In some files these extra markers can be sizable. -The default behavior is -copy comments. (Note: in IJG releases v6 and v6a, -jpegtran always did the equivalent of -copy none.) - -Additional switches recognized by jpegtran are: - -outfile filename - -maxmemory N - -verbose - -debug -These work the same as in cjpeg or djpeg. - - -THE COMMENT UTILITIES - -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. - -We provide two utility programs to display COM block contents and add COM -blocks to a JPEG file. - -rdjpgcom searches a JPEG file and prints the contents of any COM blocks on -standard output. The command line syntax is - rdjpgcom [-raw] [-verbose] [inputfilename] -The switch "-raw" (or just "-r") causes rdjpgcom to also output non-printable -characters in comments, which are normally escaped for security reasons. -The switch "-verbose" (or just "-v") causes rdjpgcom to also display the JPEG -image dimensions. If you omit the input file name from the command line, -the JPEG file is read from standard input. (This may not work on some -operating systems, if binary data can't be read from stdin.) - -wrjpgcom adds a COM block, containing text you provide, to a JPEG file. -Ordinarily, the COM block is added after any existing COM blocks, but you -can delete the old COM blocks if you wish. wrjpgcom produces a new JPEG -file; it does not modify the input file. DO NOT try to overwrite the input -file by directing wrjpgcom's output back into it; on most systems this will -just destroy your file. - -The command line syntax for wrjpgcom is similar to cjpeg's. On Unix-like -systems, it is - wrjpgcom [switches] [inputfilename] -The output file is written to standard output. The input file comes from -the named file, or from standard input if no input file is named. - -On most non-Unix systems, the syntax is - wrjpgcom [switches] inputfilename outputfilename -where both input and output file names must be given explicitly. - -wrjpgcom understands three switches: - -replace Delete any existing COM blocks from the file. - -comment "Comment text" Supply new COM text on command line. - -cfile name Read text for new COM block from named file. -(Switch names can be abbreviated.) If you have only one line of comment text -to add, you can provide it on the command line with -comment. The comment -text must be surrounded with quotes so that it is treated as a single -argument. Longer comments can be read from a text file. - -If you give neither -comment nor -cfile, then wrjpgcom will read the comment -text from standard input. (In this case an input image file name MUST be -supplied, so that the source JPEG file comes from somewhere else.) You can -enter multiple lines, up to 64KB worth. Type an end-of-file indicator -(usually control-D or control-Z) to terminate the comment text entry. - -wrjpgcom will not add a COM block if the provided comment string is empty. -Therefore -replace -comment "" can be used to delete all COM blocks from a -file. - -These utility programs do not depend on the IJG JPEG library. In -particular, the source code for rdjpgcom is intended as an illustration of -the minimum amount of code required to parse a JPEG file header correctly. diff --git a/jpeg/wizard.txt b/jpeg/wizard.txt deleted file mode 100755 index 54170b2..0000000 --- a/jpeg/wizard.txt +++ /dev/null @@ -1,211 +0,0 @@ -Advanced usage instructions for the Independent JPEG Group's JPEG software -========================================================================== - -This file describes cjpeg's "switches for wizards". - -The "wizard" switches are intended for experimentation with JPEG by persons -who are reasonably knowledgeable about the JPEG standard. If you don't know -what you are doing, DON'T USE THESE SWITCHES. You'll likely produce files -with worse image quality and/or poorer compression than you'd get from the -default settings. Furthermore, these switches must be used with caution -when making files intended for general use, because not all JPEG decoders -will support unusual JPEG parameter settings. - - -Quantization Table Adjustment ------------------------------ - -Ordinarily, cjpeg starts with a default set of tables (the same ones given -as examples in the JPEG standard) and scales them up or down according to -the -quality setting. The details of the scaling algorithm can be found in -jcparam.c. At very low quality settings, some quantization table entries -can get scaled up to values exceeding 255. Although 2-byte quantization -values are supported by the IJG software, this feature is not in baseline -JPEG and is not supported by all implementations. If you need to ensure -wide compatibility of low-quality files, you can constrain the scaled -quantization values to no more than 255 by giving the -baseline switch. -Note that use of -baseline will result in poorer quality for the same file -size, since more bits than necessary are expended on higher AC coefficients. - -You can substitute a different set of quantization values by using the --qtables switch: - - -qtables file Use the quantization tables given in the named file. - -The specified file should be a text file containing decimal quantization -values. The file should contain one to four tables, each of 64 elements. -The tables are implicitly numbered 0,1,etc. in order of appearance. Table -entries appear in normal array order (NOT in the zigzag order in which they -will be stored in the JPEG file). - -Quantization table files are free format, in that arbitrary whitespace can -appear between numbers. Also, comments can be included: a comment starts -with '#' and extends to the end of the line. Here is an example file that -duplicates the default quantization tables: - - # Quantization tables given in JPEG spec, section K.1 - - # This is table 0 (the luminance table): - 16 11 10 16 24 40 51 61 - 12 12 14 19 26 58 60 55 - 14 13 16 24 40 57 69 56 - 14 17 22 29 51 87 80 62 - 18 22 37 56 68 109 103 77 - 24 35 55 64 81 104 113 92 - 49 64 78 87 103 121 120 101 - 72 92 95 98 112 100 103 99 - - # This is table 1 (the chrominance table): - 17 18 24 47 99 99 99 99 - 18 21 26 66 99 99 99 99 - 24 26 56 99 99 99 99 99 - 47 66 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - 99 99 99 99 99 99 99 99 - -If the -qtables switch is used without -quality, then the specified tables -are used exactly as-is. If both -qtables and -quality are used, then the -tables taken from the file are scaled in the same fashion that the default -tables would be scaled for that quality setting. If -baseline appears, then -the quantization values are constrained to the range 1-255. - -By default, cjpeg will use quantization table 0 for luminance components and -table 1 for chrominance components. To override this choice, use the -qslots -switch: - - -qslots N[,...] Select which quantization table to use for - each color component. - -The -qslots switch specifies a quantization table number for each color -component, in the order in which the components appear in the JPEG SOF marker. -For example, to create a separate table for each of Y,Cb,Cr, you could -provide a -qtables file that defines three quantization tables and say -"-qslots 0,1,2". If -qslots gives fewer table numbers than there are color -components, then the last table number is repeated as necessary. - - -Sampling Factor Adjustment --------------------------- - -By default, cjpeg uses 2:1 horizontal and vertical downsampling when -compressing YCbCr data, and no downsampling for all other color spaces. -You can override this default with the -sample switch: - - -sample HxV[,...] Set JPEG sampling factors for each color - component. - -The -sample switch specifies the JPEG sampling factors for each color -component, in the order in which they appear in the JPEG SOF marker. -If you specify fewer HxV pairs than there are components, the remaining -components are set to 1x1 sampling. For example, the default YCbCr setting -is equivalent to "-sample 2x2,1x1,1x1", which can be abbreviated to -"-sample 2x2". - -There are still some JPEG decoders in existence that support only 2x1 -sampling (also called 4:2:2 sampling). Compatibility with such decoders can -be achieved by specifying "-sample 2x1". This is not recommended unless -really necessary, since it increases file size and encoding/decoding time -with very little quality gain. - - -Multiple Scan / Progression Control ------------------------------------ - -By default, cjpeg emits a single-scan sequential JPEG file. The --progressive switch generates a progressive JPEG file using a default series -of progression parameters. You can create multiple-scan sequential JPEG -files or progressive JPEG files with custom progression parameters by using -the -scans switch: - - -scans file Use the scan sequence given in the named file. - -The specified file should be a text file containing a "scan script". -The script specifies the contents and ordering of the scans to be emitted. -Each entry in the script defines one scan. A scan definition specifies -the components to be included in the scan, and for progressive JPEG it also -specifies the progression parameters Ss,Se,Ah,Al for the scan. Scan -definitions are separated by semicolons (';'). A semicolon after the last -scan definition is optional. - -Each scan definition contains one to four component indexes, optionally -followed by a colon (':') and the four progressive-JPEG parameters. The -component indexes denote which color component(s) are to be transmitted in -the scan. Components are numbered in the order in which they appear in the -JPEG SOF marker, with the first component being numbered 0. (Note that these -indexes are not the "component ID" codes assigned to the components, just -positional indexes.) - -The progression parameters for each scan are: - Ss Zigzag index of first coefficient included in scan - Se Zigzag index of last coefficient included in scan - Ah Zero for first scan of a coefficient, else Al of prior scan - Al Successive approximation low bit position for scan -If the progression parameters are omitted, the values 0,63,0,0 are used, -producing a sequential JPEG file. cjpeg automatically determines whether -the script represents a progressive or sequential file, by observing whether -Ss and Se values other than 0 and 63 appear. (The -progressive switch is -not needed to specify this; in fact, it is ignored when -scans appears.) -The scan script must meet the JPEG restrictions on progression sequences. -(cjpeg checks that the spec's requirements are obeyed.) - -Scan script files are free format, in that arbitrary whitespace can appear -between numbers and around punctuation. Also, comments can be included: a -comment starts with '#' and extends to the end of the line. For additional -legibility, commas or dashes can be placed between values. (Actually, any -single punctuation character other than ':' or ';' can be inserted.) For -example, the following two scan definitions are equivalent: - 0 1 2: 0 63 0 0; - 0,1,2 : 0-63, 0,0 ; - -Here is an example of a scan script that generates a partially interleaved -sequential JPEG file: - - 0; # Y only in first scan - 1 2; # Cb and Cr in second scan - -Here is an example of a progressive scan script using only spectral selection -(no successive approximation): - - # Interleaved DC scan for Y,Cb,Cr: - 0,1,2: 0-0, 0, 0 ; - # AC scans: - 0: 1-2, 0, 0 ; # First two Y AC coefficients - 0: 3-5, 0, 0 ; # Three more - 1: 1-63, 0, 0 ; # All AC coefficients for Cb - 2: 1-63, 0, 0 ; # All AC coefficients for Cr - 0: 6-9, 0, 0 ; # More Y coefficients - 0: 10-63, 0, 0 ; # Remaining Y coefficients - -Here is an example of a successive-approximation script. This is equivalent -to the default script used by "cjpeg -progressive" for YCbCr images: - - # Initial DC scan for Y,Cb,Cr (lowest bit not sent) - 0,1,2: 0-0, 0, 1 ; - # First AC scan: send first 5 Y AC coefficients, minus 2 lowest bits: - 0: 1-5, 0, 2 ; - # Send all Cr,Cb AC coefficients, minus lowest bit: - # (chroma data is usually too small to be worth subdividing further; - # but note we send Cr first since eye is least sensitive to Cb) - 2: 1-63, 0, 1 ; - 1: 1-63, 0, 1 ; - # Send remaining Y AC coefficients, minus 2 lowest bits: - 0: 6-63, 0, 2 ; - # Send next-to-lowest bit of all Y AC coefficients: - 0: 1-63, 2, 1 ; - # At this point we've sent all but the lowest bit of all coefficients. - # Send lowest bit of DC coefficients - 0,1,2: 0-0, 1, 0 ; - # Send lowest bit of AC coefficients - 2: 1-63, 1, 0 ; - 1: 1-63, 1, 0 ; - # Y AC lowest bit scan is last; it's usually the largest scan - 0: 1-63, 1, 0 ; - -It may be worth pointing out that this script is tuned for quality settings -of around 50 to 75. For lower quality settings, you'd probably want to use -a script with fewer stages of successive approximation (otherwise the -initial scans will be really bad). For higher quality settings, you might -want to use more stages of successive approximation (so that the initial -scans are not too large). diff --git a/jpeg/wrbmp.c b/jpeg/wrbmp.c deleted file mode 100755 index 3283b0f..0000000 --- a/jpeg/wrbmp.c +++ /dev/null @@ -1,442 +0,0 @@ -/* - * wrbmp.c - * - * Copyright (C) 1994-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in Microsoft "BMP" - * format (MS Windows 3.x and OS/2 1.x flavors). - * Either 8-bit colormapped or 24-bit full-color format can be written. - * No compression is supported. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * This code contributed by James Arthur Boucher. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef BMP_SUPPORTED - - -/* - * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. - * This is not yet implemented. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * Since BMP stores scanlines bottom-to-top, we have to invert the image - * from JPEG's top-to-bottom order. To do this, we save the outgoing data - * in a virtual array during put_pixel_row calls, then actually emit the - * BMP file during finish_output. The virtual array contains one JSAMPLE per - * pixel if the output is grayscale or colormapped, three if it is full color. - */ - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - boolean is_os2; /* saves the OS2 format request flag */ - - jvirt_sarray_ptr whole_image; /* needed to reverse row order */ - JDIMENSION data_width; /* JSAMPLEs per row */ - JDIMENSION row_width; /* physical width of one row in the BMP file */ - int pad_bytes; /* number of padding bytes needed per row */ - JDIMENSION cur_output_row; /* next row# to write to virtual array */ -} bmp_dest_struct; - -typedef bmp_dest_struct * bmp_dest_ptr; - - -/* Forward declarations */ -LOCAL(void) write_colormap - JPP((j_decompress_ptr cinfo, bmp_dest_ptr dest, - int map_colors, int map_entry_size)); - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* This version is for writing 24-bit pixels */ -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - int pad; - - /* Access next row in virtual array */ - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, - dest->cur_output_row, (JDIMENSION) 1, TRUE); - dest->cur_output_row++; - - /* Transfer data. Note destination values must be in BGR order - * (even though Microsoft's own documents say the opposite). - */ - inptr = dest->pub.buffer[0]; - outptr = image_ptr[0]; - for (col = cinfo->output_width; col > 0; col--) { - outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ - outptr[1] = *inptr++; - outptr[0] = *inptr++; - outptr += 3; - } - - /* Zero out the pad bytes. */ - pad = dest->pad_bytes; - while (--pad >= 0) - *outptr++ = 0; -} - -METHODDEF(void) -put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* This version is for grayscale OR quantized color output */ -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - JSAMPARRAY image_ptr; - register JSAMPROW inptr, outptr; - register JDIMENSION col; - int pad; - - /* Access next row in virtual array */ - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, - dest->cur_output_row, (JDIMENSION) 1, TRUE); - dest->cur_output_row++; - - /* Transfer data. */ - inptr = dest->pub.buffer[0]; - outptr = image_ptr[0]; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = *inptr++; /* can omit GETJSAMPLE() safely */ - } - - /* Zero out the pad bytes. */ - pad = dest->pad_bytes; - while (--pad >= 0) - *outptr++ = 0; -} - - -/* - * Startup: normally writes the file header. - * In this module we may as well postpone everything until finish_output. - */ - -METHODDEF(void) -start_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* no work here */ -} - - -/* - * Finish up at the end of the file. - * - * Here is where we really output the BMP file. - * - * First, routines to write the Windows and OS/2 variants of the file header. - */ - -LOCAL(void) -write_bmp_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) -/* Write a Windows-style BMP file header, including colormap if needed */ -{ - char bmpfileheader[14]; - char bmpinfoheader[40]; -#define PUT_2B(array,offset,value) \ - (array[offset] = (char) ((value) & 0xFF), \ - array[offset+1] = (char) (((value) >> 8) & 0xFF)) -#define PUT_4B(array,offset,value) \ - (array[offset] = (char) ((value) & 0xFF), \ - array[offset+1] = (char) (((value) >> 8) & 0xFF), \ - array[offset+2] = (char) (((value) >> 16) & 0xFF), \ - array[offset+3] = (char) (((value) >> 24) & 0xFF)) - INT32 headersize, bfSize; - int bits_per_pixel, cmap_entries; - - /* Compute colormap size and total file size */ - if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* Colormapped RGB */ - bits_per_pixel = 8; - cmap_entries = 256; - } else { - /* Unquantized, full color RGB */ - bits_per_pixel = 24; - cmap_entries = 0; - } - } else { - /* Grayscale output. We need to fake a 256-entry colormap. */ - bits_per_pixel = 8; - cmap_entries = 256; - } - /* File size */ - headersize = 14 + 40 + cmap_entries * 4; /* Header and colormap */ - bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; - - /* Set unused fields of header to 0 */ - MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); - MEMZERO(bmpinfoheader, SIZEOF(bmpinfoheader)); - - /* Fill the file header */ - bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ - bmpfileheader[1] = 0x4D; - PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ - /* we leave bfReserved1 & bfReserved2 = 0 */ - PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ - - /* Fill the info header (Microsoft calls this a BITMAPINFOHEADER) */ - PUT_2B(bmpinfoheader, 0, 40); /* biSize */ - PUT_4B(bmpinfoheader, 4, cinfo->output_width); /* biWidth */ - PUT_4B(bmpinfoheader, 8, cinfo->output_height); /* biHeight */ - PUT_2B(bmpinfoheader, 12, 1); /* biPlanes - must be 1 */ - PUT_2B(bmpinfoheader, 14, bits_per_pixel); /* biBitCount */ - /* we leave biCompression = 0, for none */ - /* we leave biSizeImage = 0; this is correct for uncompressed data */ - if (cinfo->density_unit == 2) { /* if have density in dots/cm, then */ - PUT_4B(bmpinfoheader, 24, (INT32) (cinfo->X_density*100)); /* XPels/M */ - PUT_4B(bmpinfoheader, 28, (INT32) (cinfo->Y_density*100)); /* XPels/M */ - } - PUT_2B(bmpinfoheader, 32, cmap_entries); /* biClrUsed */ - /* we leave biClrImportant = 0 */ - - if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) - ERREXIT(cinfo, JERR_FILE_WRITE); - if (JFWRITE(dest->pub.output_file, bmpinfoheader, 40) != (size_t) 40) - ERREXIT(cinfo, JERR_FILE_WRITE); - - if (cmap_entries > 0) - write_colormap(cinfo, dest, cmap_entries, 4); -} - - -LOCAL(void) -write_os2_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) -/* Write an OS2-style BMP file header, including colormap if needed */ -{ - char bmpfileheader[14]; - char bmpcoreheader[12]; - INT32 headersize, bfSize; - int bits_per_pixel, cmap_entries; - - /* Compute colormap size and total file size */ - if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* Colormapped RGB */ - bits_per_pixel = 8; - cmap_entries = 256; - } else { - /* Unquantized, full color RGB */ - bits_per_pixel = 24; - cmap_entries = 0; - } - } else { - /* Grayscale output. We need to fake a 256-entry colormap. */ - bits_per_pixel = 8; - cmap_entries = 256; - } - /* File size */ - headersize = 14 + 12 + cmap_entries * 3; /* Header and colormap */ - bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; - - /* Set unused fields of header to 0 */ - MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); - MEMZERO(bmpcoreheader, SIZEOF(bmpcoreheader)); - - /* Fill the file header */ - bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ - bmpfileheader[1] = 0x4D; - PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ - /* we leave bfReserved1 & bfReserved2 = 0 */ - PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ - - /* Fill the info header (Microsoft calls this a BITMAPCOREHEADER) */ - PUT_2B(bmpcoreheader, 0, 12); /* bcSize */ - PUT_2B(bmpcoreheader, 4, cinfo->output_width); /* bcWidth */ - PUT_2B(bmpcoreheader, 6, cinfo->output_height); /* bcHeight */ - PUT_2B(bmpcoreheader, 8, 1); /* bcPlanes - must be 1 */ - PUT_2B(bmpcoreheader, 10, bits_per_pixel); /* bcBitCount */ - - if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) - ERREXIT(cinfo, JERR_FILE_WRITE); - if (JFWRITE(dest->pub.output_file, bmpcoreheader, 12) != (size_t) 12) - ERREXIT(cinfo, JERR_FILE_WRITE); - - if (cmap_entries > 0) - write_colormap(cinfo, dest, cmap_entries, 3); -} - - -/* - * Write the colormap. - * Windows uses BGR0 map entries; OS/2 uses BGR entries. - */ - -LOCAL(void) -write_colormap (j_decompress_ptr cinfo, bmp_dest_ptr dest, - int map_colors, int map_entry_size) -{ - JSAMPARRAY colormap = cinfo->colormap; - int num_colors = cinfo->actual_number_of_colors; - FILE * outfile = dest->pub.output_file; - int i; - - if (colormap != NULL) { - if (cinfo->out_color_components == 3) { - /* Normal case with RGB colormap */ - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(colormap[2][i]), outfile); - putc(GETJSAMPLE(colormap[1][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } else { - /* Grayscale colormap (only happens with grayscale quantization) */ - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(colormap[0][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - putc(GETJSAMPLE(colormap[0][i]), outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } - } else { - /* If no colormap, must be grayscale data. Generate a linear "map". */ - for (i = 0; i < 256; i++) { - putc(i, outfile); - putc(i, outfile); - putc(i, outfile); - if (map_entry_size == 4) - putc(0, outfile); - } - } - /* Pad colormap with zeros to ensure specified number of colormap entries */ - if (i > map_colors) - ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, i); - for (; i < map_colors; i++) { - putc(0, outfile); - putc(0, outfile); - putc(0, outfile); - if (map_entry_size == 4) - putc(0, outfile); - } -} - - -METHODDEF(void) -finish_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; - register FILE * outfile = dest->pub.output_file; - JSAMPARRAY image_ptr; - register JSAMPROW data_ptr; - JDIMENSION row; - register JDIMENSION col; - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - - /* Write the header and colormap */ - if (dest->is_os2) - write_os2_header(cinfo, dest); - else - write_bmp_header(cinfo, dest); - - /* Write the file body from our virtual array */ - for (row = cinfo->output_height; row > 0; row--) { - if (progress != NULL) { - progress->pub.pass_counter = (long) (cinfo->output_height - row); - progress->pub.pass_limit = (long) cinfo->output_height; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } - image_ptr = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->whole_image, row-1, (JDIMENSION) 1, FALSE); - data_ptr = image_ptr[0]; - for (col = dest->row_width; col > 0; col--) { - putc(GETJSAMPLE(*data_ptr), outfile); - data_ptr++; - } - } - if (progress != NULL) - progress->completed_extra_passes++; - - /* Make sure we wrote the output file OK */ - fflush(outfile); - if (ferror(outfile)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for BMP format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_bmp (j_decompress_ptr cinfo, boolean is_os2) -{ - bmp_dest_ptr dest; - JDIMENSION row_width; - - /* Create module interface object, fill in method pointers */ - dest = (bmp_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(bmp_dest_struct)); - dest->pub.start_output = start_output_bmp; - dest->pub.finish_output = finish_output_bmp; - dest->is_os2 = is_os2; - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - dest->pub.put_pixel_rows = put_gray_rows; - } else if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) - dest->pub.put_pixel_rows = put_gray_rows; - else - dest->pub.put_pixel_rows = put_pixel_rows; - } else { - ERREXIT(cinfo, JERR_BMP_COLORSPACE); - } - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Determine width of rows in the BMP file (padded to 4-byte boundary). */ - row_width = cinfo->output_width * cinfo->output_components; - dest->data_width = row_width; - while ((row_width & 3) != 0) row_width++; - dest->row_width = row_width; - dest->pad_bytes = (int) (row_width - dest->data_width); - - /* Allocate space for inversion array, prepare for write pass */ - dest->whole_image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - row_width, cinfo->output_height, (JDIMENSION) 1); - dest->cur_output_row = 0; - if (cinfo->progress != NULL) { - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; - progress->total_extra_passes++; /* count file input as separate pass */ - } - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, row_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* BMP_SUPPORTED */ diff --git a/jpeg/wrgif.c b/jpeg/wrgif.c deleted file mode 100755 index 5fe8328..0000000 --- a/jpeg/wrgif.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * wrgif.c - * - * Copyright (C) 1991-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in GIF format. - * - ************************************************************************** - * NOTE: to avoid entanglements with Unisys' patent on LZW compression, * - * this code has been modified to output "uncompressed GIF" files. * - * There is no trace of the LZW algorithm in this file. * - ************************************************************************** - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - */ - -/* - * This code is loosely based on ppmtogif from the PBMPLUS distribution - * of Feb. 1991. That file contains the following copyright notice: - * Based on GIFENCODE by David Rowley . - * Lempel-Ziv compression based on "compress" by Spencer W. Thomas et al. - * Copyright (C) 1989 by Jef Poskanzer. - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, provided - * that the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. This software is provided "as is" without express or - * implied warranty. - * - * We are also required to state that - * "The Graphics Interchange Format(c) is the Copyright property of - * CompuServe Incorporated. GIF(sm) is a Service Mark property of - * CompuServe Incorporated." - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef GIF_SUPPORTED - - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - j_decompress_ptr cinfo; /* back link saves passing separate parm */ - - /* State for packing variable-width codes into a bitstream */ - int n_bits; /* current number of bits/code */ - int maxcode; /* maximum code, given n_bits */ - INT32 cur_accum; /* holds bits not yet output */ - int cur_bits; /* # of bits in cur_accum */ - - /* State for GIF code assignment */ - int ClearCode; /* clear code (doesn't change) */ - int EOFCode; /* EOF code (ditto) */ - int code_counter; /* counts output symbols */ - - /* GIF data packet construction buffer */ - int bytesinpkt; /* # of bytes in current packet */ - char packetbuf[256]; /* workspace for accumulating packet */ - -} gif_dest_struct; - -typedef gif_dest_struct * gif_dest_ptr; - -/* Largest value that will fit in N bits */ -#define MAXCODE(n_bits) ((1 << (n_bits)) - 1) - - -/* - * Routines to package finished data bytes into GIF data blocks. - * A data block consists of a count byte (1..255) and that many data bytes. - */ - -LOCAL(void) -flush_packet (gif_dest_ptr dinfo) -/* flush any accumulated data */ -{ - if (dinfo->bytesinpkt > 0) { /* never write zero-length packet */ - dinfo->packetbuf[0] = (char) dinfo->bytesinpkt++; - if (JFWRITE(dinfo->pub.output_file, dinfo->packetbuf, dinfo->bytesinpkt) - != (size_t) dinfo->bytesinpkt) - ERREXIT(dinfo->cinfo, JERR_FILE_WRITE); - dinfo->bytesinpkt = 0; - } -} - - -/* Add a character to current packet; flush to disk if necessary */ -#define CHAR_OUT(dinfo,c) \ - { (dinfo)->packetbuf[++(dinfo)->bytesinpkt] = (char) (c); \ - if ((dinfo)->bytesinpkt >= 255) \ - flush_packet(dinfo); \ - } - - -/* Routine to convert variable-width codes into a byte stream */ - -LOCAL(void) -output (gif_dest_ptr dinfo, int code) -/* Emit a code of n_bits bits */ -/* Uses cur_accum and cur_bits to reblock into 8-bit bytes */ -{ - dinfo->cur_accum |= ((INT32) code) << dinfo->cur_bits; - dinfo->cur_bits += dinfo->n_bits; - - while (dinfo->cur_bits >= 8) { - CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); - dinfo->cur_accum >>= 8; - dinfo->cur_bits -= 8; - } -} - - -/* The pseudo-compression algorithm. - * - * In this module we simply output each pixel value as a separate symbol; - * thus, no compression occurs. In fact, there is expansion of one bit per - * pixel, because we use a symbol width one bit wider than the pixel width. - * - * GIF ordinarily uses variable-width symbols, and the decoder will expect - * to ratchet up the symbol width after a fixed number of symbols. - * To simplify the logic and keep the expansion penalty down, we emit a - * GIF Clear code to reset the decoder just before the width would ratchet up. - * Thus, all the symbols in the output file will have the same bit width. - * Note that emitting the Clear codes at the right times is a mere matter of - * counting output symbols and is in no way dependent on the LZW patent. - * - * With a small basic pixel width (low color count), Clear codes will be - * needed very frequently, causing the file to expand even more. So this - * simplistic approach wouldn't work too well on bilevel images, for example. - * But for output of JPEG conversions the pixel width will usually be 8 bits - * (129 to 256 colors), so the overhead added by Clear symbols is only about - * one symbol in every 256. - */ - -LOCAL(void) -compress_init (gif_dest_ptr dinfo, int i_bits) -/* Initialize pseudo-compressor */ -{ - /* init all the state variables */ - dinfo->n_bits = i_bits; - dinfo->maxcode = MAXCODE(dinfo->n_bits); - dinfo->ClearCode = (1 << (i_bits - 1)); - dinfo->EOFCode = dinfo->ClearCode + 1; - dinfo->code_counter = dinfo->ClearCode + 2; - /* init output buffering vars */ - dinfo->bytesinpkt = 0; - dinfo->cur_accum = 0; - dinfo->cur_bits = 0; - /* GIF specifies an initial Clear code */ - output(dinfo, dinfo->ClearCode); -} - - -LOCAL(void) -compress_pixel (gif_dest_ptr dinfo, int c) -/* Accept and "compress" one pixel value. - * The given value must be less than n_bits wide. - */ -{ - /* Output the given pixel value as a symbol. */ - output(dinfo, c); - /* Issue Clear codes often enough to keep the reader from ratcheting up - * its symbol size. - */ - if (dinfo->code_counter < dinfo->maxcode) { - dinfo->code_counter++; - } else { - output(dinfo, dinfo->ClearCode); - dinfo->code_counter = dinfo->ClearCode + 2; /* reset the counter */ - } -} - - -LOCAL(void) -compress_term (gif_dest_ptr dinfo) -/* Clean up at end */ -{ - /* Send an EOF code */ - output(dinfo, dinfo->EOFCode); - /* Flush the bit-packing buffer */ - if (dinfo->cur_bits > 0) { - CHAR_OUT(dinfo, dinfo->cur_accum & 0xFF); - } - /* Flush the packet buffer */ - flush_packet(dinfo); -} - - -/* GIF header construction */ - - -LOCAL(void) -put_word (gif_dest_ptr dinfo, unsigned int w) -/* Emit a 16-bit word, LSB first */ -{ - putc(w & 0xFF, dinfo->pub.output_file); - putc((w >> 8) & 0xFF, dinfo->pub.output_file); -} - - -LOCAL(void) -put_3bytes (gif_dest_ptr dinfo, int val) -/* Emit 3 copies of same byte value --- handy subr for colormap construction */ -{ - putc(val, dinfo->pub.output_file); - putc(val, dinfo->pub.output_file); - putc(val, dinfo->pub.output_file); -} - - -LOCAL(void) -emit_header (gif_dest_ptr dinfo, int num_colors, JSAMPARRAY colormap) -/* Output the GIF file header, including color map */ -/* If colormap==NULL, synthesize a gray-scale colormap */ -{ - int BitsPerPixel, ColorMapSize, InitCodeSize, FlagByte; - int cshift = dinfo->cinfo->data_precision - 8; - int i; - - if (num_colors > 256) - ERREXIT1(dinfo->cinfo, JERR_TOO_MANY_COLORS, num_colors); - /* Compute bits/pixel and related values */ - BitsPerPixel = 1; - while (num_colors > (1 << BitsPerPixel)) - BitsPerPixel++; - ColorMapSize = 1 << BitsPerPixel; - if (BitsPerPixel <= 1) - InitCodeSize = 2; - else - InitCodeSize = BitsPerPixel; - /* - * Write the GIF header. - * Note that we generate a plain GIF87 header for maximum compatibility. - */ - putc('G', dinfo->pub.output_file); - putc('I', dinfo->pub.output_file); - putc('F', dinfo->pub.output_file); - putc('8', dinfo->pub.output_file); - putc('7', dinfo->pub.output_file); - putc('a', dinfo->pub.output_file); - /* Write the Logical Screen Descriptor */ - put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); - put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); - FlagByte = 0x80; /* Yes, there is a global color table */ - FlagByte |= (BitsPerPixel-1) << 4; /* color resolution */ - FlagByte |= (BitsPerPixel-1); /* size of global color table */ - putc(FlagByte, dinfo->pub.output_file); - putc(0, dinfo->pub.output_file); /* Background color index */ - putc(0, dinfo->pub.output_file); /* Reserved (aspect ratio in GIF89) */ - /* Write the Global Color Map */ - /* If the color map is more than 8 bits precision, */ - /* we reduce it to 8 bits by shifting */ - for (i=0; i < ColorMapSize; i++) { - if (i < num_colors) { - if (colormap != NULL) { - if (dinfo->cinfo->out_color_space == JCS_RGB) { - /* Normal case: RGB color map */ - putc(GETJSAMPLE(colormap[0][i]) >> cshift, dinfo->pub.output_file); - putc(GETJSAMPLE(colormap[1][i]) >> cshift, dinfo->pub.output_file); - putc(GETJSAMPLE(colormap[2][i]) >> cshift, dinfo->pub.output_file); - } else { - /* Grayscale "color map": possible if quantizing grayscale image */ - put_3bytes(dinfo, GETJSAMPLE(colormap[0][i]) >> cshift); - } - } else { - /* Create a gray-scale map of num_colors values, range 0..255 */ - put_3bytes(dinfo, (i * 255 + (num_colors-1)/2) / (num_colors-1)); - } - } else { - /* fill out the map to a power of 2 */ - put_3bytes(dinfo, 0); - } - } - /* Write image separator and Image Descriptor */ - putc(',', dinfo->pub.output_file); /* separator */ - put_word(dinfo, 0); /* left/top offset */ - put_word(dinfo, 0); - put_word(dinfo, (unsigned int) dinfo->cinfo->output_width); /* image size */ - put_word(dinfo, (unsigned int) dinfo->cinfo->output_height); - /* flag byte: not interlaced, no local color map */ - putc(0x00, dinfo->pub.output_file); - /* Write Initial Code Size byte */ - putc(InitCodeSize, dinfo->pub.output_file); - - /* Initialize for "compression" of image data */ - compress_init(dinfo, InitCodeSize+1); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - - if (cinfo->quantize_colors) - emit_header(dest, cinfo->actual_number_of_colors, cinfo->colormap); - else - emit_header(dest, 256, (JSAMPARRAY) NULL); -} - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - for (col = cinfo->output_width; col > 0; col--) { - compress_pixel(dest, GETJSAMPLE(*ptr++)); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_gif (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - gif_dest_ptr dest = (gif_dest_ptr) dinfo; - - /* Flush "compression" mechanism */ - compress_term(dest); - /* Write a zero-length data block to end the series */ - putc(0, dest->pub.output_file); - /* Write the GIF terminator mark */ - putc(';', dest->pub.output_file); - /* Make sure we wrote the output file OK */ - fflush(dest->pub.output_file); - if (ferror(dest->pub.output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for GIF format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_gif (j_decompress_ptr cinfo) -{ - gif_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (gif_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(gif_dest_struct)); - dest->cinfo = cinfo; /* make back link for subroutines */ - dest->pub.start_output = start_output_gif; - dest->pub.put_pixel_rows = put_pixel_rows; - dest->pub.finish_output = finish_output_gif; - - if (cinfo->out_color_space != JCS_GRAYSCALE && - cinfo->out_color_space != JCS_RGB) - ERREXIT(cinfo, JERR_GIF_COLORSPACE); - - /* Force quantization if color or if > 8 bits input */ - if (cinfo->out_color_space != JCS_GRAYSCALE || cinfo->data_precision > 8) { - /* Force quantization to at most 256 colors */ - cinfo->quantize_colors = TRUE; - if (cinfo->desired_number_of_colors > 256) - cinfo->desired_number_of_colors = 256; - } - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - if (cinfo->output_components != 1) /* safety check: just one component? */ - ERREXIT(cinfo, JERR_GIF_BUG); - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, cinfo->output_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* GIF_SUPPORTED */ diff --git a/jpeg/wrjpgcom.1 b/jpeg/wrjpgcom.1 deleted file mode 100755 index d419a99..0000000 --- a/jpeg/wrjpgcom.1 +++ /dev/null @@ -1,103 +0,0 @@ -.TH WRJPGCOM 1 "15 June 1995" -.SH NAME -wrjpgcom \- insert text comments into a JPEG file -.SH SYNOPSIS -.B wrjpgcom -[ -.B \-replace -] -[ -.BI \-comment " text" -] -[ -.BI \-cfile " name" -] -[ -.I filename -] -.LP -.SH DESCRIPTION -.LP -.B wrjpgcom -reads the named JPEG/JFIF file, or the standard input if no file is named, -and generates a new JPEG/JFIF file on standard output. A comment block is -added to the file. -.PP -The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. -Although the standard doesn't actually define what COM blocks are for, they -are widely used to hold user-supplied text strings. This lets you add -annotations, titles, index terms, etc to your JPEG files, and later retrieve -them as text. COM blocks do not interfere with the image stored in the JPEG -file. The maximum size of a COM block is 64K, but you can have as many of -them as you like in one JPEG file. -.PP -.B wrjpgcom -adds a COM block, containing text you provide, to a JPEG file. -Ordinarily, the COM block is added after any existing COM blocks; but you -can delete the old COM blocks if you wish. -.SH OPTIONS -Switch names may be abbreviated, and are not case sensitive. -.TP -.B \-replace -Delete any existing COM blocks from the file. -.TP -.BI \-comment " text" -Supply text for new COM block on command line. -.TP -.BI \-cfile " name" -Read text for new COM block from named file. -.PP -If you have only one line of comment text to add, you can provide it on the -command line with -.BR \-comment . -The comment text must be surrounded with quotes so that it is treated as a -single argument. Longer comments can be read from a text file. -.PP -If you give neither -.B \-comment -nor -.BR \-cfile , -then -.B wrjpgcom -will read the comment text from standard input. (In this case an input image -file name MUST be supplied, so that the source JPEG file comes from somewhere -else.) You can enter multiple lines, up to 64KB worth. Type an end-of-file -indicator (usually control-D) to terminate the comment text entry. -.PP -.B wrjpgcom -will not add a COM block if the provided comment string is empty. Therefore -\fB\-replace \-comment ""\fR can be used to delete all COM blocks from a file. -.SH EXAMPLES -.LP -Add a short comment to in.jpg, producing out.jpg: -.IP -.B wrjpgcom \-c -\fI"View of my back yard" in.jpg -.B > -.I out.jpg -.PP -Attach a long comment previously stored in comment.txt: -.IP -.B wrjpgcom -.I in.jpg -.B < -.I comment.txt -.B > -.I out.jpg -.PP -or equivalently -.IP -.B wrjpgcom -.B -cfile -.I comment.txt -.B < -.I in.jpg -.B > -.I out.jpg -.SH SEE ALSO -.BR cjpeg (1), -.BR djpeg (1), -.BR jpegtran (1), -.BR rdjpgcom (1) -.SH AUTHOR -Independent JPEG Group diff --git a/jpeg/wrjpgcom.c b/jpeg/wrjpgcom.c deleted file mode 100755 index 8c04b05..0000000 --- a/jpeg/wrjpgcom.c +++ /dev/null @@ -1,583 +0,0 @@ -/* - * wrjpgcom.c - * - * Copyright (C) 1994-1997, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains a very simple stand-alone application that inserts - * user-supplied text as a COM (comment) marker in a JFIF file. - * This may be useful as an example of the minimum logic needed to parse - * JPEG markers. - */ - -#define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ -#include "jinclude.h" /* get auto-config symbols, */ - -#ifndef HAVE_STDLIB_H /* should declare malloc() */ -extern void * malloc (); -#endif -#include /* to declare isupper(), tolower() */ -#ifdef USE_SETMODE -#include /* to declare setmode()'s parameter macros */ -/* If you have setmode() but not , just delete this line: */ -#include /* to declare setmode() */ -#endif - -#ifdef USE_CCOMMAND /* command-line reader for Macintosh */ -#ifdef __MWERKS__ -#include /* Metrowerks needs this */ -#include /* ... and this */ -#endif -#ifdef THINK_C -#include /* Think declares it here */ -#endif -#endif - -#ifdef DONT_USE_B_MODE /* define mode parameters for fopen() */ -#define READ_BINARY "r" -#define WRITE_BINARY "w" -#else -#ifdef VMS /* VMS is very nonstandard */ -#define READ_BINARY "rb", "ctx=stm" -#define WRITE_BINARY "wb", "ctx=stm" -#else /* standard ANSI-compliant case */ -#define READ_BINARY "rb" -#define WRITE_BINARY "wb" -#endif -#endif - -#ifndef EXIT_FAILURE /* define exit() codes if not provided */ -#define EXIT_FAILURE 1 -#endif -#ifndef EXIT_SUCCESS -#ifdef VMS -#define EXIT_SUCCESS 1 /* VMS is very nonstandard */ -#else -#define EXIT_SUCCESS 0 -#endif -#endif - -/* Reduce this value if your malloc() can't allocate blocks up to 64K. - * On DOS, compiling in large model is usually a better solution. - */ - -#ifndef MAX_COM_LENGTH -#define MAX_COM_LENGTH 65000L /* must be <= 65533 in any case */ -#endif - - -/* - * These macros are used to read the input file and write the output file. - * To reuse this code in another application, you might need to change these. - */ - -static FILE * infile; /* input JPEG file */ - -/* Return next input byte, or EOF if no more */ -#define NEXTBYTE() getc(infile) - -static FILE * outfile; /* output JPEG file */ - -/* Emit an output byte */ -#define PUTBYTE(x) putc((x), outfile) - - -/* Error exit handler */ -#define ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) - - -/* Read one byte, testing for EOF */ -static int -read_1_byte (void) -{ - int c; - - c = NEXTBYTE(); - if (c == EOF) - ERREXIT("Premature EOF in JPEG file"); - return c; -} - -/* Read 2 bytes, convert to unsigned int */ -/* All 2-byte quantities in JPEG markers are MSB first */ -static unsigned int -read_2_bytes (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - if (c1 == EOF) - ERREXIT("Premature EOF in JPEG file"); - c2 = NEXTBYTE(); - if (c2 == EOF) - ERREXIT("Premature EOF in JPEG file"); - return (((unsigned int) c1) << 8) + ((unsigned int) c2); -} - - -/* Routines to write data to output file */ - -static void -write_1_byte (int c) -{ - PUTBYTE(c); -} - -static void -write_2_bytes (unsigned int val) -{ - PUTBYTE((val >> 8) & 0xFF); - PUTBYTE(val & 0xFF); -} - -static void -write_marker (int marker) -{ - PUTBYTE(0xFF); - PUTBYTE(marker); -} - -static void -copy_rest_of_file (void) -{ - int c; - - while ((c = NEXTBYTE()) != EOF) - PUTBYTE(c); -} - - -/* - * JPEG markers consist of one or more 0xFF bytes, followed by a marker - * code byte (which is not an FF). Here are the marker codes of interest - * in this program. (See jdmarker.c for a more complete list.) - */ - -#define M_SOF0 0xC0 /* Start Of Frame N */ -#define M_SOF1 0xC1 /* N indicates which compression process */ -#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ -#define M_SOF3 0xC3 -#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ -#define M_SOF6 0xC6 -#define M_SOF7 0xC7 -#define M_SOF9 0xC9 -#define M_SOF10 0xCA -#define M_SOF11 0xCB -#define M_SOF13 0xCD -#define M_SOF14 0xCE -#define M_SOF15 0xCF -#define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ -#define M_EOI 0xD9 /* End Of Image (end of datastream) */ -#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ -#define M_COM 0xFE /* COMment */ - - -/* - * Find the next JPEG marker and return its marker code. - * We expect at least one FF byte, possibly more if the compressor used FFs - * to pad the file. (Padding FFs will NOT be replicated in the output file.) - * There could also be non-FF garbage between markers. The treatment of such - * garbage is unspecified; we choose to skip over it but emit a warning msg. - * NB: this routine must not be used after seeing SOS marker, since it will - * not deal correctly with FF/00 sequences in the compressed image data... - */ - -static int -next_marker (void) -{ - int c; - int discarded_bytes = 0; - - /* Find 0xFF byte; count and skip any non-FFs. */ - c = read_1_byte(); - while (c != 0xFF) { - discarded_bytes++; - c = read_1_byte(); - } - /* Get marker code byte, swallowing any duplicate FF bytes. Extra FFs - * are legal as pad bytes, so don't count them in discarded_bytes. - */ - do { - c = read_1_byte(); - } while (c == 0xFF); - - if (discarded_bytes != 0) { - fprintf(stderr, "Warning: garbage data found in JPEG file\n"); - } - - return c; -} - - -/* - * Read the initial marker, which should be SOI. - * For a JFIF file, the first two bytes of the file should be literally - * 0xFF M_SOI. To be more general, we could use next_marker, but if the - * input file weren't actually JPEG at all, next_marker might read the whole - * file and then return a misleading error message... - */ - -static int -first_marker (void) -{ - int c1, c2; - - c1 = NEXTBYTE(); - c2 = NEXTBYTE(); - if (c1 != 0xFF || c2 != M_SOI) - ERREXIT("Not a JPEG file"); - return c2; -} - - -/* - * Most types of marker are followed by a variable-length parameter segment. - * This routine skips over the parameters for any marker we don't otherwise - * want to process. - * Note that we MUST skip the parameter segment explicitly in order not to - * be fooled by 0xFF bytes that might appear within the parameter segment; - * such bytes do NOT introduce new markers. - */ - -static void -copy_variable (void) -/* Copy an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - write_2_bytes(length); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - write_1_byte(read_1_byte()); - length--; - } -} - -static void -skip_variable (void) -/* Skip over an unknown or uninteresting variable-length marker */ -{ - unsigned int length; - - /* Get the marker parameter length count */ - length = read_2_bytes(); - /* Length includes itself, so must be at least 2 */ - if (length < 2) - ERREXIT("Erroneous JPEG marker length"); - length -= 2; - /* Skip over the remaining bytes */ - while (length > 0) { - (void) read_1_byte(); - length--; - } -} - - -/* - * Parse the marker stream until SOFn or EOI is seen; - * copy data to output, but discard COM markers unless keep_COM is true. - */ - -static int -scan_JPEG_header (int keep_COM) -{ - int marker; - - /* Expect SOI at start of file */ - if (first_marker() != M_SOI) - ERREXIT("Expected SOI marker first"); - write_marker(M_SOI); - - /* Scan miscellaneous markers until we reach SOFn. */ - for (;;) { - marker = next_marker(); - switch (marker) { - /* Note that marker codes 0xC4, 0xC8, 0xCC are not, and must not be, - * treated as SOFn. C4 in particular is actually DHT. - */ - case M_SOF0: /* Baseline */ - case M_SOF1: /* Extended sequential, Huffman */ - case M_SOF2: /* Progressive, Huffman */ - case M_SOF3: /* Lossless, Huffman */ - case M_SOF5: /* Differential sequential, Huffman */ - case M_SOF6: /* Differential progressive, Huffman */ - case M_SOF7: /* Differential lossless, Huffman */ - case M_SOF9: /* Extended sequential, arithmetic */ - case M_SOF10: /* Progressive, arithmetic */ - case M_SOF11: /* Lossless, arithmetic */ - case M_SOF13: /* Differential sequential, arithmetic */ - case M_SOF14: /* Differential progressive, arithmetic */ - case M_SOF15: /* Differential lossless, arithmetic */ - return marker; - - case M_SOS: /* should not see compressed data before SOF */ - ERREXIT("SOS without prior SOFn"); - break; - - case M_EOI: /* in case it's a tables-only JPEG stream */ - return marker; - - case M_COM: /* Existing COM: conditionally discard */ - if (keep_COM) { - write_marker(marker); - copy_variable(); - } else { - skip_variable(); - } - break; - - default: /* Anything else just gets copied */ - write_marker(marker); - copy_variable(); /* we assume it has a parameter count... */ - break; - } - } /* end loop */ -} - - -/* Command line parsing code */ - -static const char * progname; /* program name for error messages */ - - -static void -usage (void) -/* complain about bad command line */ -{ - fprintf(stderr, "wrjpgcom inserts a textual comment in a JPEG file.\n"); - fprintf(stderr, "You can add to or replace any existing comment(s).\n"); - - fprintf(stderr, "Usage: %s [switches] ", progname); -#ifdef TWO_FILE_COMMANDLINE - fprintf(stderr, "inputfile outputfile\n"); -#else - fprintf(stderr, "[inputfile]\n"); -#endif - - fprintf(stderr, "Switches (names may be abbreviated):\n"); - fprintf(stderr, " -replace Delete any existing comments\n"); - fprintf(stderr, " -comment \"text\" Insert comment with given text\n"); - fprintf(stderr, " -cfile name Read comment from named file\n"); - fprintf(stderr, "Notice that you must put quotes around the comment text\n"); - fprintf(stderr, "when you use -comment.\n"); - fprintf(stderr, "If you do not give either -comment or -cfile on the command line,\n"); - fprintf(stderr, "then the comment text is read from standard input.\n"); - fprintf(stderr, "It can be multiple lines, up to %u characters total.\n", - (unsigned int) MAX_COM_LENGTH); -#ifndef TWO_FILE_COMMANDLINE - fprintf(stderr, "You must specify an input JPEG file name when supplying\n"); - fprintf(stderr, "comment text from standard input.\n"); -#endif - - exit(EXIT_FAILURE); -} - - -static int -keymatch (char * arg, const char * keyword, int minchars) -/* Case-insensitive matching of (possibly abbreviated) keyword switches. */ -/* keyword is the constant keyword (must be lower case already), */ -/* minchars is length of minimum legal abbreviation. */ -{ - register int ca, ck; - register int nmatched = 0; - - while ((ca = *arg++) != '\0') { - if ((ck = *keyword++) == '\0') - return 0; /* arg longer than keyword, no good */ - if (isupper(ca)) /* force arg to lcase (assume ck is already) */ - ca = tolower(ca); - if (ca != ck) - return 0; /* no good */ - nmatched++; /* count matched characters */ - } - /* reached end of argument; fail if it's too short for unique abbrev */ - if (nmatched < minchars) - return 0; - return 1; /* A-OK */ -} - - -/* - * The main program. - */ - -int -main (int argc, char **argv) -{ - int argn; - char * arg; - int keep_COM = 1; - char * comment_arg = NULL; - FILE * comment_file = NULL; - unsigned int comment_length = 0; - int marker; - - /* On Mac, fetch a command line. */ -#ifdef USE_CCOMMAND - argc = ccommand(&argv); -#endif - - progname = argv[0]; - if (progname == NULL || progname[0] == 0) - progname = "wrjpgcom"; /* in case C library doesn't provide it */ - - /* Parse switches, if any */ - for (argn = 1; argn < argc; argn++) { - arg = argv[argn]; - if (arg[0] != '-') - break; /* not switch, must be file name */ - arg++; /* advance over '-' */ - if (keymatch(arg, "replace", 1)) { - keep_COM = 0; - } else if (keymatch(arg, "cfile", 2)) { - if (++argn >= argc) usage(); - if ((comment_file = fopen(argv[argn], "r")) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else if (keymatch(arg, "comment", 1)) { - if (++argn >= argc) usage(); - comment_arg = argv[argn]; - /* If the comment text starts with '"', then we are probably running - * under MS-DOG and must parse out the quoted string ourselves. Sigh. - */ - if (comment_arg[0] == '"') { - comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); - if (comment_arg == NULL) - ERREXIT("Insufficient memory"); - strcpy(comment_arg, argv[argn]+1); - for (;;) { - comment_length = (unsigned int) strlen(comment_arg); - if (comment_length > 0 && comment_arg[comment_length-1] == '"') { - comment_arg[comment_length-1] = '\0'; /* zap terminating quote */ - break; - } - if (++argn >= argc) - ERREXIT("Missing ending quote mark"); - strcat(comment_arg, " "); - strcat(comment_arg, argv[argn]); - } - } - comment_length = (unsigned int) strlen(comment_arg); - } else - usage(); - } - - /* Cannot use both -comment and -cfile. */ - if (comment_arg != NULL && comment_file != NULL) - usage(); - /* If there is neither -comment nor -cfile, we will read the comment text - * from stdin; in this case there MUST be an input JPEG file name. - */ - if (comment_arg == NULL && comment_file == NULL && argn >= argc) - usage(); - - /* Open the input file. */ - if (argn < argc) { - if ((infile = fopen(argv[argn], READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn]); - exit(EXIT_FAILURE); - } - } else { - /* default input file is stdin */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdin), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((infile = fdopen(fileno(stdin), READ_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdin\n", progname); - exit(EXIT_FAILURE); - } -#else - infile = stdin; -#endif - } - - /* Open the output file. */ -#ifdef TWO_FILE_COMMANDLINE - /* Must have explicit output file name */ - if (argn != argc-2) { - fprintf(stderr, "%s: must name one input and one output file\n", - progname); - usage(); - } - if ((outfile = fopen(argv[argn+1], WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open %s\n", progname, argv[argn+1]); - exit(EXIT_FAILURE); - } -#else - /* Unix style: expect zero or one file name */ - if (argn < argc-1) { - fprintf(stderr, "%s: only one input file\n", progname); - usage(); - } - /* default output file is stdout */ -#ifdef USE_SETMODE /* need to hack file mode? */ - setmode(fileno(stdout), O_BINARY); -#endif -#ifdef USE_FDOPEN /* need to re-open in binary mode? */ - if ((outfile = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { - fprintf(stderr, "%s: can't open stdout\n", progname); - exit(EXIT_FAILURE); - } -#else - outfile = stdout; -#endif -#endif /* TWO_FILE_COMMANDLINE */ - - /* Collect comment text from comment_file or stdin, if necessary */ - if (comment_arg == NULL) { - FILE * src_file; - int c; - - comment_arg = (char *) malloc((size_t) MAX_COM_LENGTH); - if (comment_arg == NULL) - ERREXIT("Insufficient memory"); - comment_length = 0; - src_file = (comment_file != NULL ? comment_file : stdin); - while ((c = getc(src_file)) != EOF) { - if (comment_length >= (unsigned int) MAX_COM_LENGTH) { - fprintf(stderr, "Comment text may not exceed %u bytes\n", - (unsigned int) MAX_COM_LENGTH); - exit(EXIT_FAILURE); - } - comment_arg[comment_length++] = (char) c; - } - if (comment_file != NULL) - fclose(comment_file); - } - - /* Copy JPEG headers until SOFn marker; - * we will insert the new comment marker just before SOFn. - * This (a) causes the new comment to appear after, rather than before, - * existing comments; and (b) ensures that comments come after any JFIF - * or JFXX markers, as required by the JFIF specification. - */ - marker = scan_JPEG_header(keep_COM); - /* Insert the new COM marker, but only if nonempty text has been supplied */ - if (comment_length > 0) { - write_marker(M_COM); - write_2_bytes(comment_length + 2); - while (comment_length > 0) { - write_1_byte(*comment_arg++); - comment_length--; - } - } - /* Duplicate the remainder of the source file. - * Note that any COM markers occuring after SOF will not be touched. - */ - write_marker(marker); - copy_rest_of_file(); - - /* All done. */ - exit(EXIT_SUCCESS); - return 0; /* suppress no-return-value warnings */ -} diff --git a/jpeg/wrppm.c b/jpeg/wrppm.c deleted file mode 100755 index 68e0c85..0000000 --- a/jpeg/wrppm.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * wrppm.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * Modified 2009 by Guido Vollbeding. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in PPM/PGM format. - * The extended 2-byte-per-sample raw PPM/PGM formats are supported. - * The PBMPLUS library is NOT required to compile this software - * (but it is highly useful as a set of PPM image manipulation programs). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef PPM_SUPPORTED - - -/* - * For 12-bit JPEG data, we either downscale the values to 8 bits - * (to write standard byte-per-sample PPM/PGM files), or output - * nonstandard word-per-sample PPM/PGM files. Downscaling is done - * if PPM_NORAWWORD is defined (this can be done in the Makefile - * or in jconfig.h). - * (When the core library supports data precision reduction, a cleaner - * implementation will be to ask for that instead.) - */ - -#if BITS_IN_JSAMPLE == 8 -#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) (v) -#define BYTESPERSAMPLE 1 -#define PPM_MAXVAL 255 -#else -#ifdef PPM_NORAWWORD -#define PUTPPMSAMPLE(ptr,v) *ptr++ = (char) ((v) >> (BITS_IN_JSAMPLE-8)) -#define BYTESPERSAMPLE 1 -#define PPM_MAXVAL 255 -#else -/* The word-per-sample format always puts the MSB first. */ -#define PUTPPMSAMPLE(ptr,v) \ - { register int val_ = v; \ - *ptr++ = (char) ((val_ >> 8) & 0xFF); \ - *ptr++ = (char) (val_ & 0xFF); \ - } -#define BYTESPERSAMPLE 2 -#define PPM_MAXVAL ((1<pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * This code is used when we have to copy the data and apply a pixel - * format translation. Typically this only happens in 12-bit mode. - */ - -METHODDEF(void) -copy_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register JSAMPROW ptr; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = dest->samples_per_row; col > 0; col--) { - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(*ptr++)); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Write some pixel data when color quantization is in effect. - * We have to demap the color index values to straight data. - */ - -METHODDEF(void) -put_demapped_rgb (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register int pixval; - register JSAMPROW ptr; - register JSAMPROW color_map0 = cinfo->colormap[0]; - register JSAMPROW color_map1 = cinfo->colormap[1]; - register JSAMPROW color_map2 = cinfo->colormap[2]; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - pixval = GETJSAMPLE(*ptr++); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map0[pixval])); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map1[pixval])); - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map2[pixval])); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -METHODDEF(void) -put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - register char * bufferptr; - register JSAMPROW ptr; - register JSAMPROW color_map = cinfo->colormap[0]; - register JDIMENSION col; - - ptr = dest->pub.buffer[0]; - bufferptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - PUTPPMSAMPLE(bufferptr, GETJSAMPLE(color_map[GETJSAMPLE(*ptr++)])); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - ppm_dest_ptr dest = (ppm_dest_ptr) dinfo; - - /* Emit file header */ - switch (cinfo->out_color_space) { - case JCS_GRAYSCALE: - /* emit header for raw PGM format */ - fprintf(dest->pub.output_file, "P5\n%ld %ld\n%d\n", - (long) cinfo->output_width, (long) cinfo->output_height, - PPM_MAXVAL); - break; - case JCS_RGB: - /* emit header for raw PPM format */ - fprintf(dest->pub.output_file, "P6\n%ld %ld\n%d\n", - (long) cinfo->output_width, (long) cinfo->output_height, - PPM_MAXVAL); - break; - default: - ERREXIT(cinfo, JERR_PPM_COLORSPACE); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_ppm (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* Make sure we wrote the output file OK */ - fflush(dinfo->output_file); - if (ferror(dinfo->output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for PPM format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_ppm (j_decompress_ptr cinfo) -{ - ppm_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (ppm_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(ppm_dest_struct)); - dest->pub.start_output = start_output_ppm; - dest->pub.finish_output = finish_output_ppm; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Create physical I/O buffer. Note we make this near on a PC. */ - dest->samples_per_row = cinfo->output_width * cinfo->out_color_components; - dest->buffer_width = dest->samples_per_row * (BYTESPERSAMPLE * SIZEOF(char)); - dest->iobuffer = (char *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width); - - if (cinfo->quantize_colors || BITS_IN_JSAMPLE != 8 || - SIZEOF(JSAMPLE) != SIZEOF(char)) { - /* When quantizing, we need an output buffer for colormap indexes - * that's separate from the physical I/O buffer. We also need a - * separate buffer if pixel format translation must take place. - */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width * cinfo->output_components, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - if (! cinfo->quantize_colors) - dest->pub.put_pixel_rows = copy_pixel_rows; - else if (cinfo->out_color_space == JCS_GRAYSCALE) - dest->pub.put_pixel_rows = put_demapped_gray; - else - dest->pub.put_pixel_rows = put_demapped_rgb; - } else { - /* We will fwrite() directly from decompressor output buffer. */ - /* Synthesize a JSAMPARRAY pointer structure */ - /* Cast here implies near->far pointer conversion on PCs */ - dest->pixrow = (JSAMPROW) dest->iobuffer; - dest->pub.buffer = & dest->pixrow; - dest->pub.buffer_height = 1; - dest->pub.put_pixel_rows = put_pixel_rows; - } - - return (djpeg_dest_ptr) dest; -} - -#endif /* PPM_SUPPORTED */ diff --git a/jpeg/wrrle.c b/jpeg/wrrle.c deleted file mode 100755 index a4e7337..0000000 --- a/jpeg/wrrle.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * wrrle.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in RLE format. - * The Utah Raster Toolkit library is required (version 3.1 or later). - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * Based on code contributed by Mike Lijewski, - * with updates from Robert Hutchinson. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef RLE_SUPPORTED - -/* rle.h is provided by the Utah Raster Toolkit. */ - -#include - -/* - * We assume that JSAMPLE has the same representation as rle_pixel, - * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - - -/* - * Since RLE stores scanlines bottom-to-top, we have to invert the image - * from JPEG's top-to-bottom order. To do this, we save the outgoing data - * in a virtual array during put_pixel_row calls, then actually emit the - * RLE file during finish_output. - */ - - -/* - * For now, if we emit an RLE color map then it is always 256 entries long, - * though not all of the entries need be used. - */ - -#define CMAPBITS 8 -#define CMAPLENGTH (1<<(CMAPBITS)) - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - jvirt_sarray_ptr image; /* virtual array to store the output image */ - rle_map *colormap; /* RLE-style color map, or NULL if none */ - rle_pixel **rle_row; /* To pass rows to rle_putrow() */ - -} rle_dest_struct; - -typedef rle_dest_struct * rle_dest_ptr; - -/* Forward declarations */ -METHODDEF(void) rle_put_pixel_rows - JPP((j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied)); - - -/* - * Write the file header. - * - * In this module it's easier to wait till finish_output to write anything. - */ - -METHODDEF(void) -start_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - size_t cmapsize; - int i, ci; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* - * Make sure the image can be stored in RLE format. - * - * - RLE stores image dimensions as *signed* 16 bit integers. JPEG - * uses unsigned, so we have to check the width. - * - * - Colorspace is expected to be grayscale or RGB. - * - * - The number of channels (components) is expected to be 1 (grayscale/ - * pseudocolor) or 3 (truecolor/directcolor). - * (could be 2 or 4 if using an alpha channel, but we aren't) - */ - - if (cinfo->output_width > 32767 || cinfo->output_height > 32767) - ERREXIT2(cinfo, JERR_RLE_DIMENSIONS, cinfo->output_width, - cinfo->output_height); - - if (cinfo->out_color_space != JCS_GRAYSCALE && - cinfo->out_color_space != JCS_RGB) - ERREXIT(cinfo, JERR_RLE_COLORSPACE); - - if (cinfo->output_components != 1 && cinfo->output_components != 3) - ERREXIT1(cinfo, JERR_RLE_TOOMANYCHANNELS, cinfo->num_components); - - /* Convert colormap, if any, to RLE format. */ - - dest->colormap = NULL; - - if (cinfo->quantize_colors) { - /* Allocate storage for RLE-style cmap, zero any extra entries */ - cmapsize = cinfo->out_color_components * CMAPLENGTH * SIZEOF(rle_map); - dest->colormap = (rle_map *) (*cinfo->mem->alloc_small) - ((j_common_ptr) cinfo, JPOOL_IMAGE, cmapsize); - MEMZERO(dest->colormap, cmapsize); - - /* Save away data in RLE format --- note 8-bit left shift! */ - /* Shifting would need adjustment for JSAMPLEs wider than 8 bits. */ - for (ci = 0; ci < cinfo->out_color_components; ci++) { - for (i = 0; i < cinfo->actual_number_of_colors; i++) { - dest->colormap[ci * CMAPLENGTH + i] = - GETJSAMPLE(cinfo->colormap[ci][i]) << 8; - } - } - } - - /* Set the output buffer to the first row */ - dest->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, (JDIMENSION) 0, (JDIMENSION) 1, TRUE); - dest->pub.buffer_height = 1; - - dest->pub.put_pixel_rows = rle_put_pixel_rows; - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->total_extra_passes++; /* count file writing as separate pass */ - } -#endif -} - - -/* - * Write some pixel data. - * - * This routine just saves the data away in a virtual array. - */ - -METHODDEF(void) -rle_put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - - if (cinfo->output_scanline < cinfo->output_height) { - dest->pub.buffer = (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - cinfo->output_scanline, (JDIMENSION) 1, TRUE); - } -} - -/* - * Finish up at the end of the file. - * - * Here is where we really output the RLE file. - */ - -METHODDEF(void) -finish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - rle_dest_ptr dest = (rle_dest_ptr) dinfo; - rle_hdr header; /* Output file information */ - rle_pixel **rle_row, *red, *green, *blue; - JSAMPROW output_row; - char cmapcomment[80]; - int row, col; - int ci; -#ifdef PROGRESS_REPORT - cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; -#endif - - /* Initialize the header info */ - header = *rle_hdr_init(NULL); - header.rle_file = dest->pub.output_file; - header.xmin = 0; - header.xmax = cinfo->output_width - 1; - header.ymin = 0; - header.ymax = cinfo->output_height - 1; - header.alpha = 0; - header.ncolors = cinfo->output_components; - for (ci = 0; ci < cinfo->output_components; ci++) { - RLE_SET_BIT(header, ci); - } - if (cinfo->quantize_colors) { - header.ncmap = cinfo->out_color_components; - header.cmaplen = CMAPBITS; - header.cmap = dest->colormap; - /* Add a comment to the output image with the true colormap length. */ - sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors); - rle_putcom(cmapcomment, &header); - } - - /* Emit the RLE header and color map (if any) */ - rle_put_setup(&header); - - /* Now output the RLE data from our virtual array. - * We assume here that (a) rle_pixel is represented the same as JSAMPLE, - * and (b) we are not on a machine where FAR pointers differ from regular. - */ - -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_limit = cinfo->output_height; - progress->pub.pass_counter = 0; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - - if (cinfo->output_components == 1) { - for (row = cinfo->output_height-1; row >= 0; row--) { - rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - (JDIMENSION) row, (JDIMENSION) 1, FALSE); - rle_putrow(rle_row, (int) cinfo->output_width, &header); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } else { - for (row = cinfo->output_height-1; row >= 0; row--) { - rle_row = (rle_pixel **) dest->rle_row; - output_row = * (*cinfo->mem->access_virt_sarray) - ((j_common_ptr) cinfo, dest->image, - (JDIMENSION) row, (JDIMENSION) 1, FALSE); - red = rle_row[0]; - green = rle_row[1]; - blue = rle_row[2]; - for (col = cinfo->output_width; col > 0; col--) { - *red++ = GETJSAMPLE(*output_row++); - *green++ = GETJSAMPLE(*output_row++); - *blue++ = GETJSAMPLE(*output_row++); - } - rle_putrow(rle_row, (int) cinfo->output_width, &header); -#ifdef PROGRESS_REPORT - if (progress != NULL) { - progress->pub.pass_counter++; - (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); - } -#endif - } - } - -#ifdef PROGRESS_REPORT - if (progress != NULL) - progress->completed_extra_passes++; -#endif - - /* Emit file trailer */ - rle_puteof(&header); - fflush(dest->pub.output_file); - if (ferror(dest->pub.output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for RLE format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_rle (j_decompress_ptr cinfo) -{ - rle_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (rle_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(rle_dest_struct)); - dest->pub.start_output = start_output_rle; - dest->pub.finish_output = finish_output_rle; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Allocate a work array for output to the RLE library. */ - dest->rle_row = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, - cinfo->output_width, (JDIMENSION) cinfo->output_components); - - /* Allocate a virtual array to hold the image. */ - dest->image = (*cinfo->mem->request_virt_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, - (JDIMENSION) (cinfo->output_width * cinfo->output_components), - cinfo->output_height, (JDIMENSION) 1); - - return (djpeg_dest_ptr) dest; -} - -#endif /* RLE_SUPPORTED */ diff --git a/jpeg/wrtarga.c b/jpeg/wrtarga.c deleted file mode 100755 index cf104d2..0000000 --- a/jpeg/wrtarga.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * wrtarga.c - * - * Copyright (C) 1991-1996, Thomas G. Lane. - * This file is part of the Independent JPEG Group's software. - * For conditions of distribution and use, see the accompanying README file. - * - * This file contains routines to write output images in Targa format. - * - * These routines may need modification for non-Unix environments or - * specialized applications. As they stand, they assume output to - * an ordinary stdio stream. - * - * Based on code contributed by Lee Daniel Crocker. - */ - -#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ - -#ifdef TARGA_SUPPORTED - - -/* - * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. - * This is not yet implemented. - */ - -#if BITS_IN_JSAMPLE != 8 - Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ -#endif - -/* - * The output buffer needs to be writable by fwrite(). On PCs, we must - * allocate the buffer in near data space, because we are assuming small-data - * memory model, wherein fwrite() can't reach far memory. If you need to - * process very wide images on a PC, you might have to compile in large-memory - * model, or else replace fwrite() with a putc() loop --- which will be much - * slower. - */ - - -/* Private version of data destination object */ - -typedef struct { - struct djpeg_dest_struct pub; /* public fields */ - - char *iobuffer; /* physical I/O buffer */ - JDIMENSION buffer_width; /* width of one row */ -} tga_dest_struct; - -typedef tga_dest_struct * tga_dest_ptr; - - -LOCAL(void) -write_header (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, int num_colors) -/* Create and write a Targa header */ -{ - char targaheader[18]; - - /* Set unused fields of header to 0 */ - MEMZERO(targaheader, SIZEOF(targaheader)); - - if (num_colors > 0) { - targaheader[1] = 1; /* color map type 1 */ - targaheader[5] = (char) (num_colors & 0xFF); - targaheader[6] = (char) (num_colors >> 8); - targaheader[7] = 24; /* 24 bits per cmap entry */ - } - - targaheader[12] = (char) (cinfo->output_width & 0xFF); - targaheader[13] = (char) (cinfo->output_width >> 8); - targaheader[14] = (char) (cinfo->output_height & 0xFF); - targaheader[15] = (char) (cinfo->output_height >> 8); - targaheader[17] = 0x20; /* Top-down, non-interlaced */ - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - targaheader[2] = 3; /* image type = uncompressed gray-scale */ - targaheader[16] = 8; /* bits per pixel */ - } else { /* must be RGB */ - if (num_colors > 0) { - targaheader[2] = 1; /* image type = colormapped RGB */ - targaheader[16] = 8; - } else { - targaheader[2] = 2; /* image type = uncompressed RGB */ - targaheader[16] = 24; - } - } - - if (JFWRITE(dinfo->output_file, targaheader, 18) != (size_t) 18) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * Write some pixel data. - * In this module rows_supplied will always be 1. - */ - -METHODDEF(void) -put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* used for unquantized full-color output */ -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - outptr[0] = (char) GETJSAMPLE(inptr[2]); /* RGB to BGR order */ - outptr[1] = (char) GETJSAMPLE(inptr[1]); - outptr[2] = (char) GETJSAMPLE(inptr[0]); - inptr += 3, outptr += 3; - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - -METHODDEF(void) -put_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -/* used for grayscale OR quantized color output */ -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = (char) GETJSAMPLE(*inptr++); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Write some demapped pixel data when color quantization is in effect. - * For Targa, this is only applied to grayscale data. - */ - -METHODDEF(void) -put_demapped_gray (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, - JDIMENSION rows_supplied) -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - register JSAMPROW inptr; - register char * outptr; - register JSAMPROW color_map0 = cinfo->colormap[0]; - register JDIMENSION col; - - inptr = dest->pub.buffer[0]; - outptr = dest->iobuffer; - for (col = cinfo->output_width; col > 0; col--) { - *outptr++ = (char) GETJSAMPLE(color_map0[GETJSAMPLE(*inptr++)]); - } - (void) JFWRITE(dest->pub.output_file, dest->iobuffer, dest->buffer_width); -} - - -/* - * Startup: write the file header. - */ - -METHODDEF(void) -start_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - tga_dest_ptr dest = (tga_dest_ptr) dinfo; - int num_colors, i; - FILE *outfile; - - if (cinfo->out_color_space == JCS_GRAYSCALE) { - /* Targa doesn't have a mapped grayscale format, so we will */ - /* demap quantized gray output. Never emit a colormap. */ - write_header(cinfo, dinfo, 0); - if (cinfo->quantize_colors) - dest->pub.put_pixel_rows = put_demapped_gray; - else - dest->pub.put_pixel_rows = put_gray_rows; - } else if (cinfo->out_color_space == JCS_RGB) { - if (cinfo->quantize_colors) { - /* We only support 8-bit colormap indexes, so only 256 colors */ - num_colors = cinfo->actual_number_of_colors; - if (num_colors > 256) - ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, num_colors); - write_header(cinfo, dinfo, num_colors); - /* Write the colormap. Note Targa uses BGR byte order */ - outfile = dest->pub.output_file; - for (i = 0; i < num_colors; i++) { - putc(GETJSAMPLE(cinfo->colormap[2][i]), outfile); - putc(GETJSAMPLE(cinfo->colormap[1][i]), outfile); - putc(GETJSAMPLE(cinfo->colormap[0][i]), outfile); - } - dest->pub.put_pixel_rows = put_gray_rows; - } else { - write_header(cinfo, dinfo, 0); - dest->pub.put_pixel_rows = put_pixel_rows; - } - } else { - ERREXIT(cinfo, JERR_TGA_COLORSPACE); - } -} - - -/* - * Finish up at the end of the file. - */ - -METHODDEF(void) -finish_output_tga (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) -{ - /* Make sure we wrote the output file OK */ - fflush(dinfo->output_file); - if (ferror(dinfo->output_file)) - ERREXIT(cinfo, JERR_FILE_WRITE); -} - - -/* - * The module selection routine for Targa format output. - */ - -GLOBAL(djpeg_dest_ptr) -jinit_write_targa (j_decompress_ptr cinfo) -{ - tga_dest_ptr dest; - - /* Create module interface object, fill in method pointers */ - dest = (tga_dest_ptr) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - SIZEOF(tga_dest_struct)); - dest->pub.start_output = start_output_tga; - dest->pub.finish_output = finish_output_tga; - - /* Calculate output image dimensions so we can allocate space */ - jpeg_calc_output_dimensions(cinfo); - - /* Create I/O buffer. Note we make this near on a PC. */ - dest->buffer_width = cinfo->output_width * cinfo->output_components; - dest->iobuffer = (char *) - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, - (size_t) (dest->buffer_width * SIZEOF(char))); - - /* Create decompressor output buffer. */ - dest->pub.buffer = (*cinfo->mem->alloc_sarray) - ((j_common_ptr) cinfo, JPOOL_IMAGE, dest->buffer_width, (JDIMENSION) 1); - dest->pub.buffer_height = 1; - - return (djpeg_dest_ptr) dest; -} - -#endif /* TARGA_SUPPORTED */ diff --git a/lib/Readme.txt b/lib/Readme.txt old mode 100755 new mode 100644 diff --git a/lib/afiles b/lib/afiles old mode 100755 new mode 100644 diff --git a/link/Jamfile b/link/Jamfile old mode 100755 new mode 100644 diff --git a/link/License.txt b/link/License.txt old mode 100755 new mode 100644 diff --git a/link/Readme.txt b/link/Readme.txt old mode 100755 new mode 100644 diff --git a/link/afiles b/link/afiles old mode 100755 new mode 100644 diff --git a/link/collink.c 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mode 100755 index 47181be..0000000 --- a/png/ANNOUNCE +++ /dev/null @@ -1,41 +0,0 @@ - -Libpng 1.6.12 - June 12, 2014 - -This is a public release of libpng, intended for use in production codes. - -Files available for download: - -Source files with LF line endings (for Unix/Linux) and with a -"configure" script - - libpng-1.6.12.tar.xz (LZMA-compressed, recommended) - libpng-1.6.12.tar.gz - -Source files with CRLF line endings (for Windows), without the -"configure" script - - lpng1612.7z (LZMA-compressed, recommended) - lpng1612.zip - -Other information: - - libpng-1.6.12-README.txt - libpng-1.6.12-LICENSE.txt - libpng-1.6.12-*.asc (armored detached GPG signatures) - -Changes since the last public release (1.6.11): - Relocated new code from 1.6.11 in png.c to a point after the - declarations (Max Stepin). - Changed file permissions of contrib/tools/intgamma.sh, - test-driver, and compile from 0644 to 0755 (Cosmin). - Ensure "__has_attribute()" macro exists before trying to use it with - old clang compilers (MacPorts Ticket #43939). - -Send comments/corrections/commendations to png-mng-implement at lists.sf.net -(subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) -or to glennrp at users.sourceforge.net - -Glenn R-P -#endif diff --git a/png/CHANGES b/png/CHANGES deleted file mode 100755 index c1951a7..0000000 --- a/png/CHANGES +++ /dev/null @@ -1,4950 +0,0 @@ -#if 0 -CHANGES - changes for libpng - -Version 0.2 - added reader into png.h - fixed small problems in stub file - -Version 0.3 - added pull reader - split up pngwrite.c to several files - added pnglib.txt - added example.c - cleaned up writer, adding a few new transformations - fixed some bugs in writer - interfaced with zlib 0.5 - added K&R support - added check for 64 KB blocks for 16-bit machines - -Version 0.4 - cleaned up code and commented code - simplified time handling into png_time - created png_color_16 and png_color_8 to handle color needs - cleaned up color type defines - fixed various bugs - made various names more consistent - interfaced with zlib 0.71 - cleaned up zTXt reader and writer (using zlib's Reset functions) - split transformations into pngrtran.c and pngwtran.c - -Version 0.5 - interfaced with zlib 0.8 - fixed many reading and writing bugs - saved using 3 spaces instead of tabs - -Version 0.6 - added png_large_malloc() and png_large_free() - added png_size_t - cleaned up some compiler warnings - added png_start_read_image() - -Version 0.7 - cleaned up lots of bugs - finished dithering and other stuff - added test program - changed name from pnglib to libpng - -Version 0.71 [June, 1995] - changed pngtest.png for zlib 0.93 - fixed error in libpng.txt and example.c - -Version 0.8 - cleaned up some bugs - added png_set_filler() - split up pngstub.c into pngmem.c, pngio.c, and pngerror.c - added #define's to remove unwanted code - moved png_info_init() to png.c - added old_size into png_realloc() - added functions to manually set filtering and compression info - changed compression parameters based on image type - optimized filter selection code - added version info - changed external functions passing floats to doubles (k&r problems?) - put all the configurable stuff in pngconf.h - enabled png_set_shift to work with paletted images on read - added png_read_update_info() - updates info structure with transformations - -Version 0.81 [August, 1995] - incorporated Tim Wegner's medium model code (thanks, Tim) - -Version 0.82 [September, 1995] - [unspecified changes] - -Version 0.85 [December, 1995] - added more medium model code (almost everything's a far) - added i/o, error, and memory callback functions - fixed some bugs (16-bit, 4-bit interlaced, etc.) - added first run progressive reader (barely tested) - -Version 0.86 [January, 1996] - fixed bugs - improved documentation - -Version 0.87 [January, 1996] - fixed medium model bugs - fixed other bugs introduced in 0.85 and 0.86 - added some minor documentation - -Version 0.88 [January, 1996] - fixed progressive bugs - replaced tabs with spaces - cleaned up documentation - added callbacks for read/write and warning/error functions - -Version 0.89 [July, 1996] - Added new initialization API to make libpng work better with shared libs - we now have png_create_read_struct(), png_create_write_struct(), - png_create_info_struct(), png_destroy_read_struct(), and - png_destroy_write_struct() instead of the separate calls to - malloc and png_read_init(), png_info_init(), and png_write_init() - Changed warning/error callback functions to fix bug - this means you - should use the new initialization API if you were using the old - png_set_message_fn() calls, and that the old API no longer exists - so that people are aware that they need to change their code - Changed filter selection API to allow selection of multiple filters - since it didn't work in previous versions of libpng anyways - Optimized filter selection code - Fixed png_set_background() to allow using an arbitrary RGB color for - paletted images - Fixed gamma and background correction for paletted images, so - png_correct_palette is not needed unless you are correcting an - external palette (you will need to #define PNG_CORRECT_PALETTE_SUPPORTED - in pngconf.h) - if nobody uses this, it may disappear in the future. - Fixed bug with Borland 64K memory allocation (Alexander Lehmann) - Fixed bug in interlace handling (Smarasderagd, I think) - Added more error checking for writing and image to reduce invalid files - Separated read and write functions so that they won't both be linked - into a binary when only reading or writing functionality is used - New pngtest image also has interlacing and zTXt - Updated documentation to reflect new API - -Version 0.90 [January, 1997] - Made CRC errors/warnings on critical and ancillary chunks configurable - libpng will use the zlib CRC routines by (compile-time) default - Changed DOS small/medium model memory support - needs zlib 1.04 (Tim Wegner) - Added external C++ wrapper statements to png.h (Gilles Dauphin) - Allow PNG file to be read when some or all of file signature has already - been read from the beginning of the stream. ****This affects the size - of info_struct and invalidates all programs that use a shared libpng**** - Fixed png_filler() declarations - Fixed? background color conversions - Fixed order of error function pointers to match documentation - Current chunk name is now available in png_struct to reduce the number - of nearly identical error messages (will simplify multi-lingual - support when available) - Try to get ready for unknown-chunk callback functions: - - previously read critical chunks are flagged, so the chunk handling - routines can determine if the chunk is in the right place - - all chunk handling routines have the same prototypes, so we will - be able to handle all chunks via a callback mechanism - Try to fix Linux "setjmp" buffer size problems - Removed png_large_malloc, png_large_free, and png_realloc functions. - -Version 0.95 [March, 1997] - Fixed bug in pngwutil.c allocating "up_row" twice and "avg_row" never - Fixed bug in PNG file signature compares when start != 0 - Changed parameter type of png_set_filler(...filler...) from png_byte - to png_uint_32 - Added test for MACOS to ensure that both math.h and fp.h are not #included - Added macros for libpng to be compiled as a Windows DLL (Andreas Kupries) - Added "packswap" transformation, which changes the endianness of - packed-pixel bytes (Kevin Bracey) - Added "strip_alpha" transformation, which removes the alpha channel of - input images without using it (not necessarily a good idea) - Added "swap_alpha" transformation, which puts the alpha channel in front - of the color bytes instead of after - Removed all implicit variable tests which assume NULL == 0 (I think) - Changed several variables to "png_size_t" to show 16/32-bit limitations - Added new pCAL chunk read/write support - Added experimental filter selection weighting (Greg Roelofs) - Removed old png_set_rgbx() and png_set_xrgb() functions that have been - obsolete for about 2 years now (use png_set_filler() instead) - Added macros to read 16- and 32-bit ints directly from buffer, to be - used only on those systems that support it (namely PowerPC and 680x0) - With some testing, this may become the default for MACOS/PPC systems. - Only calculate CRC on data if we are going to use it - Added macros for zTXt compression type PNG_zTXt_COMPRESSION_??? - Added macros for simple libpng debugging output selectable at compile time - Removed PNG_READ_END_MODE in progressive reader (Smarasderagd) - More description of info_struct in libpng.txt and png.h - More instructions in example.c - More chunk types tested in pngtest.c - Renamed pngrcb.c to pngset.c, and all png_read_ functions to be - png_set_. We now have corresponding png_get_ - functions in pngget.c to get information in info_ptr. This isolates - the application from the internal organization of png_info_struct - (good for shared library implementations). - -Version 0.96 [May, 1997] - Fixed serious bug with < 8bpp images introduced in 0.95 - Fixed 256-color transparency bug (Greg Roelofs) - Fixed up documentation (Greg Roelofs, Laszlo Nyul) - Fixed "error" in pngconf.h for Linux setjmp() behavior - Fixed DOS medium model support (Tim Wegner) - Fixed png_check_keyword() for case with error in static string text - Added read of CRC after IEND chunk for embedded PNGs (Laszlo Nyul) - Added typecasts to quiet compiler errors - Added more debugging info - -Version 0.97 [January, 1998] - Removed PNG_USE_OWN_CRC capability - Relocated png_set_crc_action from pngrutil.c to pngrtran.c - Fixed typecasts of "new_key", etc. (Andreas Dilger) - Added RFC 1152 [sic] date support - Fixed bug in gamma handling of 4-bit grayscale - Added 2-bit grayscale gamma handling (Glenn R-P) - Added more typecasts. 65536L becomes (png_uint_32)65536L, etc. (Glenn R-P) - Minor corrections in libpng.txt - Added simple sRGB support (Glenn R-P) - Easier conditional compiling, e.g., - define PNG_READ/WRITE_NOT_FULLY_SUPPORTED; - all configurable options can be selected from command-line instead - of having to edit pngconf.h (Glenn R-P) - Fixed memory leak in pngwrite.c (free info_ptr->text) (Glenn R-P) - Added more conditions for png_do_background, to avoid changing - black pixels to background when a background is supplied and - no pixels are transparent - Repaired PNG_NO_STDIO behavior - Tested NODIV support and made it default behavior (Greg Roelofs) - Added "-m" option and PNGTEST_DEBUG_MEMORY to pngtest (John Bowler) - Regularized version numbering scheme and bumped shared-library major - version number to 2 to avoid problems with libpng 0.89 apps - (Greg Roelofs) - -Version 0.98 [January, 1998] - Cleaned up some typos in libpng.txt and in code documentation - Fixed memory leaks in pCAL chunk processing (Glenn R-P and John Bowler) - Cosmetic change "display_gamma" to "screen_gamma" in pngrtran.c - Changed recommendation about file_gamma for PC images to .51 from .45, - in example.c and libpng.txt, added comments to distinguish between - screen_gamma, viewing_gamma, and display_gamma. - Changed all references to RFC1152 to read RFC1123 and changed the - PNG_TIME_RFC1152_SUPPORTED macro to PNG_TIME_RFC1123_SUPPORTED - Added png_invert_alpha capability (Glenn R-P -- suggestion by Jon Vincent) - Changed srgb_intent from png_byte to int to avoid compiler bugs - -Version 0.99 [January 30, 1998] - Free info_ptr->text instead of end_info_ptr->text in pngread.c (John Bowler) - Fixed a longstanding "packswap" bug in pngtrans.c - Fixed some inconsistencies in pngconf.h that prevented compiling with - PNG_READ_GAMMA_SUPPORTED and PNG_READ_hIST_SUPPORTED undefined - Fixed some typos and made other minor rearrangement of libpng.txt (Andreas) - Changed recommendation about file_gamma for PC images to .50 from .51 in - example.c and libpng.txt, and changed file_gamma for sRGB images to .45 - Added a number of functions to access information from the png structure - png_get_image_height(), etc. (Glenn R-P, suggestion by Brad Pettit) - Added TARGET_MACOS similar to zlib-1.0.8 - Define PNG_ALWAYS_EXTERN when __MWERKS__ && WIN32 are defined - Added type casting to all png_malloc() function calls - -Version 0.99a [January 31, 1998] - Added type casts and parentheses to all returns that return a value.(Tim W.) - -Version 0.99b [February 4, 1998] - Added type cast png_uint_32 on malloc function calls where needed. - Changed type of num_hist from png_uint_32 to int (same as num_palette). - Added checks for rowbytes overflow, in case png_size_t is less than 32 bits. - Renamed makefile.elf to makefile.lnx. - -Version 0.99c [February 7, 1998] - More type casting. Removed erroneous overflow test in pngmem.c. - Added png_buffered_memcpy() and png_buffered_memset(), apply them to rowbytes. - Added UNIX manual pages libpng.3 (incorporating libpng.txt) and png.5. - -Version 0.99d [February 11, 1998] - Renamed "far_to_near()" "png_far_to_near()" - Revised libpng.3 - Version 99c "buffered" operations didn't work as intended. Replaced them - with png_memcpy_check() and png_memset_check(). - Added many "if (png_ptr == NULL) return" to quell compiler warnings about - unused png_ptr, mostly in pngget.c and pngset.c. - Check for overlength tRNS chunk present when indexed-color PLTE is read. - Cleaned up spelling errors in libpng.3/libpng.txt - Corrected a problem with png_get_tRNS() which returned undefined trans array - -Version 0.99e [February 28, 1998] - Corrected png_get_tRNS() again. - Add parentheses for easier reading of pngget.c, fixed "||" should be "&&". - Touched up example.c to make more of it compileable, although the entire - file still can't be compiled (Willem van Schaik) - Fixed a bug in png_do_shift() (Bryan Tsai) - Added a space in png.h prototype for png_write_chunk_start() - Replaced pngtest.png with one created with zlib 1.1.1 - Changed pngtest to report PASS even when file size is different (Jean-loup G.) - Corrected some logic errors in png_do_invert_alpha() (Chris Patterson) - -Version 0.99f [March 5, 1998] - Corrected a bug in pngpread() introduced in version 99c (Kevin Bracey) - Moved makefiles into a "scripts" directory, and added INSTALL instruction file - Added makefile.os2 and pngos2.def (A. Zabolotny) and makefile.s2x (W. Sebok) - Added pointers to "note on libpng versions" in makefile.lnx and README - Added row callback feature when reading and writing nonprogressive rows - and added a test of this feature in pngtest.c - Added user transform callbacks, with test of the feature in pngtest.c - -Version 0.99g [March 6, 1998, morning] - Minor changes to pngtest.c to suppress compiler warnings. - Removed "beta" language from documentation. - -Version 0.99h [March 6, 1998, evening] - Minor changes to previous minor changes to pngtest.c - Changed PNG_READ_NOT_FULLY_SUPPORTED to PNG_READ_TRANSFORMS_NOT_SUPPORTED - and added PNG_PROGRESSIVE_READ_NOT_SUPPORTED macro - Added user transform capability - -Version 1.00 [March 7, 1998] - Changed several typedefs in pngrutil.c - Added makefile.wat (Pawel Mrochen), updated makefile.tc3 (Willem van Schaik) - Replaced "while(1)" with "for(;;)" - Added PNGARG() to prototypes in pngtest.c and removed some prototypes - Updated some of the makefiles (Tom Lane) - Changed some typedefs (s_start, etc.) in pngrutil.c - Fixed dimensions of "short_months" array in pngwrite.c - Replaced ansi2knr.c with the one from jpeg-v6 - -Version 1.0.0 [March 8, 1998] - Changed name from 1.00 to 1.0.0 (Adam Costello) - Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert) - -Version 1.0.0a [March 9, 1998] - Fixed three bugs in pngrtran.c to make gamma+background handling consistent - (Greg Roelofs) - Changed format of the PNG_LIBPNG_VER integer to xyyzz instead of xyz - for major, minor, and bugfix releases. This is 10001. (Adam Costello, - Tom Lane) - Make months range from 1-12 in png_convert_to_rfc1123 - -Version 1.0.0b [March 13, 1998] - Quieted compiler complaints about two empty "for" loops in pngrutil.c - Minor changes to makefile.s2x - Removed #ifdef/#endif around a png_free() in pngread.c - -Version 1.0.1 [March 14, 1998] - Changed makefile.s2x to reduce security risk of using a relative pathname - Fixed some typos in the documentation (Greg). - Fixed a problem with value of "channels" returned by png_read_update_info() - -Version 1.0.1a [April 21, 1998] - Optimized Paeth calculations by replacing abs() function calls with intrinsics - plus other loop optimizations. Improves avg decoding speed by about 20%. - Commented out i386istic "align" compiler flags in makefile.lnx. - Reduced the default warning level in some makefiles, to make them consistent. - Removed references to IJG and JPEG in the ansi2knr.c copyright statement. - Fixed a bug in png_do_strip_filler with XXRRGGBB => RRGGBB transformation. - Added grayscale and 16-bit capability to png_do_read_filler(). - Fixed a bug in pngset.c, introduced in version 0.99c, that sets rowbytes - too large when writing an image with bit_depth < 8 (Bob Dellaca). - Corrected some bugs in the experimental weighted filtering heuristics. - Moved a misplaced pngrutil code block that truncates tRNS if it has more - than num_palette entries -- test was done before num_palette was defined. - Fixed a png_convert_to_rfc1123() bug that converts day 31 to 0 (Steve Eddins). - Changed compiler flags in makefile.wat for better optimization - (Pawel Mrochen). - -Version 1.0.1b [May 2, 1998] - Relocated png_do_gray_to_rgb() within png_do_read_transformations() (Greg). - Relocated the png_composite macros from pngrtran.c to png.h (Greg). - Added makefile.sco (contributed by Mike Hopkirk). - Fixed two bugs (missing definitions of "istop") introduced in libpng-1.0.1a. - Fixed a bug in pngrtran.c that would set channels=5 under some circumstances. - More work on the Paeth-filtering, achieving imperceptible speedup - (A Kleinert). - More work on loop optimization which may help when compiled with C++ - compilers. - Added warnings when people try to use transforms they've defined out. - Collapsed 4 "i" and "c" loops into single "i" loops in pngrtran and pngwtran. - Revised paragraph about png_set_expand() in libpng.txt and libpng.3 (Greg) - -Version 1.0.1c [May 11, 1998] - Fixed a bug in pngrtran.c (introduced in libpng-1.0.1a) where the masks for - filler bytes should have been 0xff instead of 0xf. - Added max_pixel_depth=32 in pngrutil.c when using FILLER with palette images. - Moved PNG_WRITE_WEIGHTED_FILTER_SUPPORTED and PNG_WRITE_FLUSH_SUPPORTED - out of the PNG_WRITE_TRANSFORMS_NOT_SUPPORTED block of pngconf.h - Added "PNG_NO_WRITE_TRANSFORMS" etc., as alternatives for *_NOT_SUPPORTED, - for consistency, in pngconf.h - Added individual "ifndef PNG_NO_[CAPABILITY]" in pngconf.h to make it easier - to remove unwanted capabilities via the compile line - Made some corrections to grammar (which, it's) in documentation (Greg). - Corrected example.c, use of row_pointers in png_write_image(). - -Version 1.0.1d [May 24, 1998] - Corrected several statements that used side effects illegally in pngrutil.c - and pngtrans.c, that were introduced in version 1.0.1b - Revised png_read_rows() to avoid repeated if-testing for NULL (A Kleinert) - More corrections to example.c, use of row_pointers in png_write_image() - and png_read_rows(). - Added pngdll.mak and pngdef.pas to scripts directory, contributed by - Bob Dellaca, to make a png32bd.dll with Borland C++ 4.5 - Fixed error in example.c with png_set_text: num_text is 3, not 2 (Guido V.) - Changed several loops from count-down to count-up, for consistency. - -Version 1.0.1e [June 6, 1998] - Revised libpng.txt and libpng.3 description of png_set_read|write_fn(), and - added warnings when people try to set png_read_fn and png_write_fn in - the same structure. - Added a test such that png_do_gamma will be done when num_trans==0 - for truecolor images that have defined a background. This corrects an - error that was introduced in libpng-0.90 that can cause gamma processing - to be skipped. - Added tests in png.h to include "trans" and "trans_values" in structures - when PNG_READ_BACKGROUND_SUPPORTED or PNG_READ_EXPAND_SUPPORTED is defined. - Add png_free(png_ptr->time_buffer) in png_destroy_read_struct() - Moved png_convert_to_rfc_1123() from pngwrite.c to png.c - Added capability for user-provided malloc_fn() and free_fn() functions, - and revised pngtest.c to demonstrate their use, replacing the - PNGTEST_DEBUG_MEM feature. - Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). - -Version 1.0.2 [June 14, 1998] - Fixed two bugs in makefile.bor . - -Version 1.0.2a [December 30, 1998] - Replaced and extended code that was removed from png_set_filler() in 1.0.1a. - Fixed a bug in png_do_filler() that made it fail to write filler bytes in - the left-most pixel of each row (Kevin Bracey). - Changed "static pngcharp tIME_string" to "static char tIME_string[30]" - in pngtest.c (Duncan Simpson). - Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk - even when no tIME chunk was present in the source file. - Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. - Fixed a problem in png_read_push_finish_row(), which would not skip some - passes that it should skip, for images that are less than 3 pixels high. - Interchanged the order of calls to png_do_swap() and png_do_shift() - in pngwtran.c (John Cromer). - Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . - Changed "bad adaptive filter type" from error to warning in pngrutil.c . - Fixed a documentation error about default filtering with 8-bit indexed-color. - Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO - (L. Peter Deutsch). - Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. - Added png_get_copyright() and png_get_header_version() functions. - Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c - Added information about debugging in libpng.txt and libpng.3 . - Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and - makefile.sco. - Removed lines after Dynamic Dependencies" in makefile.aco . - Revised makefile.dec to make a shared library (Jeremie Petit). - Removed trailing blanks from all files. - -Version 1.0.2a [January 6, 1999] - Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h - Added "if" tests to silence complaints about unused png_ptr in png.h and png.c - Changed "check_if_png" function in example.c to return true (nonzero) if PNG. - Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() - which is obsolete. - -Version 1.0.3 [January 14, 1999] - Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) - Added a statement of Y2K compliance in png.h, libpng.3, and Y2KINFO. - -Version 1.0.3a [August 12, 1999] - Added check for PNG_READ_INTERLACE_SUPPORTED in pngread.c; issue a warning - if an attempt is made to read an interlaced image when it's not supported. - Added check if png_ptr->trans is defined before freeing it in pngread.c - Modified the Y2K statement to include versions back to version 0.71 - Fixed a bug in the check for valid IHDR bit_depth/color_types in pngrutil.c - Modified makefile.wat (added -zp8 flag, ".symbolic", changed some comments) - Replaced leading blanks with tab characters in makefile.hux - Changed "dworkin.wustl.edu" to "ccrc.wustl.edu" in various documents. - Changed (float)red and (float)green to (double)red, (double)green - in png_set_rgb_to_gray() to avoid "promotion" problems in AIX. - Fixed a bug in pngconf.h that omitted when PNG_DEBUG==0 (K Bracey). - Reformatted libpng.3 and libpngpf.3 with proper fonts (script by J. vanZandt). - Updated documentation to refer to the PNG-1.2 specification. - Removed ansi2knr.c and left pointers to the latest source for ansi2knr.c - in makefile.knr, INSTALL, and README (L. Peter Deutsch) - Fixed bugs in calculation of the length of rowbytes when adding alpha - channels to 16-bit images, in pngrtran.c (Chris Nokleberg) - Added function png_set_user_transform_info() to store user_transform_ptr, - user_depth, and user_channels into the png_struct, and a function - png_get_user_transform_ptr() to retrieve the pointer (Chris Nokleberg) - Added function png_set_empty_plte_permitted() to make libpng useable - in MNG applications. - Corrected the typedef for png_free_ptr in png.h (Jesse Jones). - Correct gamma with srgb is 45455 instead of 45000 in pngrutil.c, to be - consistent with PNG-1.2, and allow variance of 500 before complaining. - Added assembler code contributed by Intel in file pngvcrd.c and modified - makefile.w32 to use it (Nirav Chhatrapati, INTEL Corporation, - Gilles Vollant) - Changed "ln -s -f" to "ln -f -s" in the makefiles to make Solaris happy. - Added some aliases for png_set_expand() in pngrtran.c, namely - png_set_expand_PLTE(), png_set_expand_depth(), and png_set_expand_tRNS() - (Greg Roelofs, in "PNG: The Definitive Guide"). - Added makefile.beo for BEOS on X86, contributed by Sander Stok. - -Version 1.0.3b [August 26, 1999] - Replaced 2147483647L several places with PNG_MAX_UINT macro, defined in png.h - Changed leading blanks to tabs in all makefiles. - Define PNG_USE_PNGVCRD in makefile.w32, to get MMX assembler code. - Made alternate versions of png_set_expand() in pngrtran.c, namely - png_set_gray_1_2_4_to_8, png_set_palette_to_rgb, and png_set_tRNS_to_alpha - (Greg Roelofs, in "PNG: The Definitive Guide"). Deleted the 1.0.3a aliases. - Relocated start of 'extern "C"' block in png.h so it doesn't include pngconf.h - Revised calculation of num_blocks in pngmem.c to avoid a potentially - negative shift distance, whose results are undefined in the C language. - Added a check in pngset.c to prevent writing multiple tIME chunks. - Added a check in pngwrite.c to detect invalid small window_bits sizes. - -Version 1.0.3d [September 4, 1999] - Fixed type casting of igamma in pngrutil.c - Added new png_expand functions to scripts/pngdef.pas and pngos2.def - Added a demo read_user_transform_fn that examines the row filters in pngtest.c - -Version 1.0.4 [September 24, 1999] - Define PNG_ALWAYS_EXTERN in pngconf.h if __STDC__ is defined - Delete #define PNG_INTERNAL and include "png.h" from pngasmrd.h - Made several minor corrections to pngtest.c - Renamed the makefiles with longer but more user friendly extensions. - Copied the PNG copyright and license to a separate LICENSE file. - Revised documentation, png.h, and example.c to remove reference to - "viewing_gamma" which no longer appears in the PNG specification. - Revised pngvcrd.c to use MMX code for interlacing only on the final pass. - Updated pngvcrd.c to use the faster C filter algorithms from libpng-1.0.1a - Split makefile.win32vc into two versions, makefile.vcawin32 (uses MMX - assembler code) and makefile.vcwin32 (doesn't). - Added a CPU timing report to pngtest.c (enabled by defining PNGTEST_TIMING) - Added a copy of pngnow.png to the distribution. - -Version 1.0.4a [September 25, 1999] - Increase max_pixel_depth in pngrutil.c if a user transform needs it. - Changed several division operations to right-shifts in pngvcrd.c - -Version 1.0.4b [September 30, 1999] - Added parentheses in line 3732 of pngvcrd.c - Added a comment in makefile.linux warning about buggy -O3 in pgcc 2.95.1 - -Version 1.0.4c [October 1, 1999] - Added a "png_check_version" function in png.c and pngtest.c that will generate - a helpful compiler error if an old png.h is found in the search path. - Changed type of png_user_transform_depth|channels from int to png_byte. - -Version 1.0.4d [October 6, 1999] - Changed 0.45 to 0.45455 in png_set_sRGB() - Removed unused PLTE entries from pngnow.png - Re-enabled some parts of pngvcrd.c (png_combine_row) that work properly. - -Version 1.0.4e [October 10, 1999] - Fixed sign error in pngvcrd.c (Greg Roelofs) - Replaced some instances of memcpy with simple assignments in pngvcrd (GR-P) - -Version 1.0.4f [October 15, 1999] - Surrounded example.c code with #if 0 .. #endif to prevent people from - inadvertently trying to compile it. - Changed png_get_header_version() from a function to a macro in png.h - Added type casting mostly in pngrtran.c and pngwtran.c - Removed some pointless "ptr = NULL" in pngmem.c - Added a "contrib" directory containing the source code from Greg's book. - -Version 1.0.5 [October 15, 1999] - Minor editing of the INSTALL and README files. - -Version 1.0.5a [October 23, 1999] - Added contrib/pngsuite and contrib/pngminus (Willem van Schaik) - Fixed a typo in the png_set_sRGB() function call in example.c (Jan Nijtmans) - Further optimization and bugfix of pngvcrd.c - Revised pngset.c so that it does not allocate or free memory in the user's - text_ptr structure. Instead, it makes its own copy. - Created separate write_end_info_struct in pngtest.c for a more severe test. - Added code in pngwrite.c to free info_ptr->text[i].key to stop a memory leak. - -Version 1.0.5b [November 23, 1999] - Moved PNG_FLAG_HAVE_CHUNK_HEADER, PNG_FLAG_BACKGROUND_IS_GRAY and - PNG_FLAG_WROTE_tIME from flags to mode. - Added png_write_info_before_PLTE() function. - Fixed some typecasting in contrib/gregbook/*.c - Updated scripts/makevms.com and added makevms.com to contrib/gregbook - and contrib/pngminus (Martin Zinser) - -Version 1.0.5c [November 26, 1999] - Moved png_get_header_version from png.h to png.c, to accommodate ansi2knr. - Removed all global arrays (according to PNG_NO_GLOBAL_ARRAYS macro), to - accommodate making DLL's: Moved usr_png_ver from global variable to function - png_get_header_ver() in png.c. Moved png_sig to png_sig_bytes in png.c and - eliminated use of png_sig in pngwutil.c. Moved the various png_CHNK arrays - into pngtypes.h. Eliminated use of global png_pass arrays. Declared the - png_CHNK and png_pass arrays to be "const". Made the global arrays - available to applications (although none are used in libpng itself) when - PNG_NO_GLOBAL_ARRAYS is not defined or when PNG_GLOBAL_ARRAYS is defined. - Removed some extraneous "-I" from contrib/pngminus/makefile.std - Changed the PNG_sRGB_INTENT macros in png.h to be consistent with PNG-1.2. - Change PNG_SRGB_INTENT to PNG_sRGB_INTENT in libpng.txt and libpng.3 - -Version 1.0.5d [November 29, 1999] - Add type cast (png_const_charp) two places in png.c - Eliminated pngtypes.h; use macros instead to declare PNG_CHNK arrays. - Renamed "PNG_GLOBAL_ARRAYS" to "PNG_USE_GLOBAL_ARRAYS" and made available - to applications a macro "PNG_USE_LOCAL_ARRAYS". - comment out (with #ifdef) all the new declarations when - PNG_USE_GLOBAL_ARRAYS is defined. - Added PNG_EXPORT_VAR macro to accommodate making DLL's. - -Version 1.0.5e [November 30, 1999] - Added iCCP, iTXt, and sPLT support; added "lang" member to the png_text - structure; refactored the inflate/deflate support to make adding new chunks - with trailing compressed parts easier in the future, and added new functions - png_free_iCCP, png_free_pCAL, png_free_sPLT, png_free_text, png_get_iCCP, - png_get_spalettes, png_set_iCCP, png_set_spalettes (Eric S. Raymond). - NOTE: Applications that write text chunks MUST define png_text->lang - before calling png_set_text(). It must be set to NULL if you want to - write tEXt or zTXt chunks. If you want your application to be able to - run with older versions of libpng, use - - #ifdef PNG_iTXt_SUPPORTED - png_text[i].lang = NULL; - #endif - - Changed png_get_oFFs() and png_set_oFFs() to use signed rather than unsigned - offsets (Eric S. Raymond). - Combined PNG_READ_cHNK_SUPPORTED and PNG_WRITE_cHNK_SUPPORTED macros into - PNG_cHNK_SUPPORTED and combined the three types of PNG_text_SUPPORTED - macros, leaving the separate macros also available. - Removed comments on #endifs at the end of many short, non-nested #if-blocks. - -Version 1.0.5f [December 6, 1999] - Changed makefile.solaris to issue a warning about potential problems when - the ucb "ld" is in the path ahead of the ccs "ld". - Removed "- [date]" from the "synopsis" line in libpng.3 and libpngpf.3. - Added sCAL chunk support (Eric S. Raymond). - -Version 1.0.5g [December 7, 1999] - Fixed "png_free_spallettes" typo in png.h - Added code to handle new chunks in pngpread.c - Moved PNG_CHNK string macro definitions outside of PNG_NO_EXTERN block - Added "translated_key" to png_text structure and png_write_iTXt(). - Added code in pngwrite.c to work around a newly discovered zlib bug. - -Version 1.0.5h [December 10, 1999] - NOTE: regarding the note for version 1.0.5e, the following must also - be included in your code: - png_text[i].translated_key = NULL; - Unknown chunk handling is now supported. - Option to eliminate all floating point support was added. Some new - fixed-point functions such as png_set_gAMA_fixed() were added. - Expanded tabs and removed trailing blanks in source files. - -Version 1.0.5i [December 13, 1999] - Added some type casts to silence compiler warnings. - Renamed "png_free_spalette" to "png_free_spalettes" for consistency. - Removed leading blanks from a #define in pngvcrd.c - Added some parameters to the new png_set_keep_unknown_chunks() function. - Added a test for up->location != 0 in the first instance of writing - unknown chunks in pngwrite.c - Changed "num" to "i" in png_free_spalettes() and png_free_unknowns() to - prevent recursion. - Added png_free_hIST() function. - Various patches to fix bugs in the sCAL and integer cHRM processing, - and to add some convenience macros for use with sCAL. - -Version 1.0.5j [December 21, 1999] - Changed "unit" parameter of png_write_sCAL from png_byte to int, to work - around buggy compilers. - Added new type "png_fixed_point" for integers that hold float*100000 values - Restored backward compatibility of tEXt/zTXt chunk processing: - Restored the first four members of png_text to the same order as v.1.0.5d. - Added members "lang_key" and "itxt_length" to png_text struct. Set - text_length=0 when "text" contains iTXt data. Use the "compression" - member to distinguish among tEXt/zTXt/iTXt types. Added - PNG_ITXT_COMPRESSION_NONE (1) and PNG_ITXT_COMPRESSION_zTXt(2) macros. - The "Note" above, about backward incompatibility of libpng-1.0.5e, no - longer applies. - Fixed png_read|write_iTXt() to read|write parameters in the right order, - and to write the iTXt chunk after IDAT if it appears in the end_ptr. - Added pnggccrd.c, version of pngvcrd.c Intel assembler for gcc (Greg Roelofs) - Reversed the order of trying to write floating-point and fixed-point gAMA. - -Version 1.0.5k [December 27, 1999] - Added many parentheses, e.g., "if (a && b & c)" becomes "if (a && (b & c))" - Added png_handle_as_unknown() function (Glenn) - Added png_free_chunk_list() function and chunk_list and num_chunk_list members - of png_ptr. - Eliminated erroneous warnings about multiple sPLT chunks and sPLT-after-PLTE. - Fixed a libpng-1.0.5h bug in pngrutil.c that was issuing erroneous warnings - about ignoring incorrect gAMA with sRGB (gAMA was in fact not ignored) - Added png_free_tRNS(); png_set_tRNS() now malloc's its own trans array (ESR). - Define png_get_int_32 when oFFs chunk is supported as well as when pCAL is. - Changed type of proflen from png_int_32 to png_uint_32 in png_get_iCCP(). - -Version 1.0.5l [January 1, 2000] - Added functions png_set_read_user_chunk_fn() and png_get_user_chunk_ptr() - for setting a callback function to handle unknown chunks and for - retrieving the associated user pointer (Glenn). - -Version 1.0.5m [January 7, 2000] - Added high-level functions png_read_png(), png_write_png(), png_free_pixels(). - -Version 1.0.5n [January 9, 2000] - Added png_free_PLTE() function, and modified png_set_PLTE() to malloc its - own memory for info_ptr->palette. This makes it safe for the calling - application to free its copy of the palette any time after it calls - png_set_PLTE(). - -Version 1.0.5o [January 20, 2000] - Cosmetic changes only (removed some trailing blanks and TABs) - -Version 1.0.5p [January 31, 2000] - Renamed pngdll.mak to makefile.bd32 - Cosmetic changes in pngtest.c - -Version 1.0.5q [February 5, 2000] - Relocated the makefile.solaris warning about PATH problems. - Fixed pngvcrd.c bug by pushing/popping registers in mmxsupport (Bruce Oberg) - Revised makefile.gcmmx - Added PNG_SETJMP_SUPPORTED, PNG_SETJMP_NOT_SUPPORTED, and PNG_ABORT() macros - -Version 1.0.5r [February 7, 2000] - Removed superfluous prototype for png_get_itxt from png.h - Fixed a bug in pngrtran.c that improperly expanded the background color. - Return *num_text=0 from png_get_text() when appropriate, and fix documentation - of png_get_text() in libpng.txt/libpng.3. - -Version 1.0.5s [February 18, 2000] - Added "png_jmp_env()" macro to pngconf.h, to help people migrate to the - new error handler that's planned for the next libpng release, and changed - example.c, pngtest.c, and contrib programs to use this macro. - Revised some of the DLL-export macros in pngconf.h (Greg Roelofs) - Fixed a bug in png_read_png() that caused it to fail to expand some images - that it should have expanded. - Fixed some mistakes in the unused and undocumented INCH_CONVERSIONS functions - in pngget.c - Changed the allocation of palette, history, and trans arrays back to - the version 1.0.5 method (linking instead of copying) which restores - backward compatibility with version 1.0.5. Added some remarks about - that in example.c. Added "free_me" member to info_ptr and png_ptr - and added png_free_data() function. - Updated makefile.linux and makefile.gccmmx to make directories conditionally. - Made cosmetic changes to pngasmrd.h - Added png_set_rows() and png_get_rows(), for use with png_read|write_png(). - Modified png_read_png() to allocate info_ptr->row_pointers only if it - hasn't already been allocated. - -Version 1.0.5t [March 4, 2000] - Changed png_jmp_env() migration aiding macro to png_jmpbuf(). - Fixed "interlace" typo (should be "interlaced") in contrib/gregbook/read2-x.c - Fixed bug with use of PNG_BEFORE_IHDR bit in png_ptr->mode, introduced when - PNG_FLAG_HAVE_CHUNK_HEADER was moved into png_ptr->mode in version 1.0.5b - Files in contrib/gregbook were revised to use png_jmpbuf() and to select - a 24-bit visual if one is available, and to allow abbreviated options. - Files in contrib/pngminus were revised to use the png_jmpbuf() macro. - Removed spaces in makefile.linux and makefile.gcmmx, introduced in 1.0.5s - -Version 1.0.5u [March 5, 2000] - Simplified the code that detects old png.h in png.c and pngtest.c - Renamed png_spalette (_p, _pp) to png_sPLT_t (_tp, _tpp) - Increased precision of rgb_to_gray calculations from 8 to 15 bits and - added png_set_rgb_to_gray_fixed() function. - Added makefile.bc32 (32-bit Borland C++, C mode) - -Version 1.0.5v [March 11, 2000] - Added some parentheses to the png_jmpbuf macro definition. - Updated references to the zlib home page, which has moved to freesoftware.com. - Corrected bugs in documentation regarding png_read_row() and png_write_row(). - Updated documentation of png_rgb_to_gray calculations in libpng.3/libpng.txt. - Renamed makefile.borland,turboc3 back to makefile.bor,tc3 as in version 1.0.3, - revised borland makefiles; added makefile.ibmvac3 and makefile.gcc (Cosmin) - -Version 1.0.6 [March 20, 2000] - Minor revisions of makefile.bor, libpng.txt, and gregbook/rpng2-win.c - Added makefile.sggcc (SGI IRIX with gcc) - -Version 1.0.6d [April 7, 2000] - Changed sprintf() to strcpy() in png_write_sCAL_s() to work without STDIO - Added data_length parameter to png_decompress_chunk() function - Revised documentation to remove reference to abandoned png_free_chnk functions - Fixed an error in png_rgb_to_gray_fixed() - Revised example.c, usage of png_destroy_write_struct(). - Renamed makefile.ibmvac3 to makefile.ibmc, added libpng.icc IBM project file - Added a check for info_ptr->free_me&PNG_FREE_TEXT when freeing text in png.c - Simplify png_sig_bytes() function to remove use of non-ISO-C strdup(). - -Version 1.0.6e [April 9, 2000] - Added png_data_freer() function. - In the code that checks for over-length tRNS chunks, added check of - info_ptr->num_trans as well as png_ptr->num_trans (Matthias Benckmann) - Minor revisions of libpng.txt/libpng.3. - Check for existing data and free it if the free_me flag is set, in png_set_*() - and png_handle_*(). - Only define PNG_WEIGHTED_FILTERS_SUPPORTED when PNG_FLOATING_POINT_SUPPORTED - is defined. - Changed several instances of PNG_NO_CONSOLE_ID to PNG_NO_STDIO in pngrutil.c - and mentioned the purposes of the two macros in libpng.txt/libpng.3. - -Version 1.0.6f [April 14, 2000] - Revised png_set_iCCP() and png_set_rows() to avoid prematurely freeing data. - Add checks in png_set_text() for NULL members of the input text structure. - Revised libpng.txt/libpng.3. - Removed superfluous prototype for png_set_iTXt from png.h - Removed "else" from pngread.c, after png_error(), and changed "0" to "length". - Changed several png_errors about malformed ancillary chunks to png_warnings. - -Version 1.0.6g [April 24, 2000] - Added png_pass-* arrays to pnggccrd.c when PNG_USE_LOCAL_ARRAYS is defined. - Relocated paragraph about png_set_background() in libpng.3/libpng.txt - and other revisions (Matthias Benckmann) - Relocated info_ptr->free_me, png_ptr->free_me, and other info_ptr and - png_ptr members to restore binary compatibility with libpng-1.0.5 - (breaks compatibility with libpng-1.0.6). - -Version 1.0.6h [April 24, 2000] - Changed shared library so-number pattern from 2.x.y.z to xy.z (this builds - libpng.so.10 & libpng.so.10.6h instead of libpng.so.2 & libpng.so.2.1.0.6h) - This is a temporary change for test purposes. - -Version 1.0.6i [May 2, 2000] - Rearranged some members at the end of png_info and png_struct, to put - unknown_chunks_num and free_me within the original size of the png_structs - and free_me, png_read_user_fn, and png_free_fn within the original png_info, - because some old applications allocate the structs directly instead of - using png_create_*(). - Added documentation of user memory functions in libpng.txt/libpng.3 - Modified png_read_png so that it will use user_allocated row_pointers - if present, unless free_me directs that it be freed, and added description - of the use of png_set_rows() and png_get_rows() in libpng.txt/libpng.3. - Added PNG_LEGACY_SUPPORTED macro, and #ifdef out all new (since version - 1.00) members of png_struct and png_info, to regain binary compatibility - when you define this macro. Capabilities lost in this event - are user transforms (new in version 1.0.0),the user transform pointer - (new in version 1.0.2), rgb_to_gray (new in 1.0.5), iCCP, sCAL, sPLT, - the high-level interface, and unknown chunks support (all new in 1.0.6). - This was necessary because of old applications that allocate the structs - directly as authors were instructed to do in libpng-0.88 and earlier, - instead of using png_create_*(). - Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which - can be used to detect codes that directly allocate the structs, and - code to check these modes in png_read_init() and png_write_init() and - generate a libpng error if the modes aren't set and PNG_LEGACY_SUPPORTED - was not defined. - Added makefile.intel and updated makefile.watcom (Pawel Mrochen) - -Version 1.0.6j [May 3, 2000] - Overloaded png_read_init() and png_write_init() with macros that convert - calls to png_read_init_2() or png_write_init_2() that check the version - and structure sizes. - -Version 1.0.7beta11 [May 7, 2000] - Removed the new PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT modes - which are no longer used. - Eliminated the three new members of png_text when PNG_LEGACY_SUPPORTED is - defined or when neither PNG_READ_iTXt_SUPPORTED nor PNG_WRITE_iTXT_SUPPORTED - is defined. - Made PNG_NO_READ|WRITE_iTXt the default setting, to avoid memory - overrun when old applications fill the info_ptr->text structure directly. - Added PNGAPI macro, and added it to the definitions of all exported functions. - Relocated version macro definitions ahead of the includes of zlib.h and - pngconf.h in png.h. - -Version 1.0.7beta12 [May 12, 2000] - Revised pngset.c to avoid a problem with expanding the png_debug macro. - Deleted some extraneous defines from pngconf.h - Made PNG_NO_CONSOLE_IO the default condition when PNG_BUILD_DLL is defined. - Use MSC _RPTn debugging instead of fprintf if _MSC_VER is defined. - Added png_access_version_number() function. - Check for mask&PNG_FREE_CHNK (for TEXT, SCAL, PCAL) in png_free_data(). - Expanded libpng.3/libpng.txt information about png_data_freer(). - -Version 1.0.7beta14 [May 17, 2000] (beta13 was not published) - Changed pnggccrd.c and pngvcrd.c to handle bad adaptive filter types as - warnings instead of errors, as pngrutil.c does. - Set the PNG_INFO_IDAT valid flag in png_set_rows() so png_write_png() - will actually write IDATs. - Made the default PNG_USE_LOCAL_ARRAYS depend on PNG_DLL instead of WIN32. - Make png_free_data() ignore its final parameter except when freeing data - that can have multiple instances (text, sPLT, unknowns). - Fixed a new bug in png_set_rows(). - Removed info_ptr->valid tests from png_free_data(), as in version 1.0.5. - Added png_set_invalid() function. - Fixed incorrect illustrations of png_destroy_write_struct() in example.c. - -Version 1.0.7beta15 [May 30, 2000] - Revised the deliberately erroneous Linux setjmp code in pngconf.h to produce - fewer error messages. - Rearranged checks for Z_OK to check the most likely path first in pngpread.c - and pngwutil.c. - Added checks in pngtest.c for png_create_*() returning NULL, and mentioned - in libpng.txt/libpng.3 the need for applications to check this. - Changed names of png_default_*() functions in pngtest to pngtest_*(). - Changed return type of png_get_x|y_offset_*() from png_uint_32 to png_int_32. - Fixed some bugs in the unused PNG_INCH_CONVERSIONS functions in pngget.c - Set each pointer to NULL after freeing it in png_free_data(). - Worked around a problem in pngconf.h; AIX's strings.h defines an "index" - macro that conflicts with libpng's png_color_16.index. (Dimitri - Papadapoulos) - Added "msvc" directory with MSVC++ project files (Simon-Pierre Cadieux). - -Version 1.0.7beta16 [June 4, 2000] - Revised the workaround of AIX string.h "index" bug. - Added a check for overlength PLTE chunk in pngrutil.c. - Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer - indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler. - Added a warning in png_decompress_chunk() when it runs out of data, e.g. - when it tries to read an erroneous PhotoShop iCCP chunk. - Added PNG_USE_DLL macro. - Revised the copyright/disclaimer/license notice. - Added contrib/msvctest directory - -Version 1.0.7rc1 [June 9, 2000] - Corrected the definition of PNG_TRANSFORM_INVERT_ALPHA (0x0400 not 0x0200) - Added contrib/visupng directory (Willem van Schaik) - -Version 1.0.7beta18 [June 23, 2000] - Revised PNGAPI definition, and pngvcrd.c to work with __GCC__ - and do not redefine PNGAPI if it is passed in via a compiler directive. - Revised visupng/PngFile.c to remove returns from within the Try block. - Removed leading underscores from "_PNG_H" and "_PNG_SAVE_BSD_SOURCE" macros. - Updated contrib/visupng/cexcept.h to version 1.0.0. - Fixed bugs in pngwrite.c and pngwutil.c that prevented writing iCCP chunks. - -Version 1.0.7rc2 [June 28, 2000] - Updated license to include disclaimers required by UCITA. - Fixed "DJBPP" typo in pnggccrd.c introduced in beta18. - -Version 1.0.7 [July 1, 2000] - Revised the definition of "trans_values" in libpng.3/libpng.txt - -Version 1.0.8beta1 [July 8, 2000] - Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks. - Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and - pngwutil.c. - Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h. - Removed unused "#include " from png.c - Added WindowsCE support. - Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment. - -Version 1.0.8beta2 [July 10, 2000] - Added project files to the wince directory and made further revisions - of pngtest.c, pngrio.c, and pngwio.c in support of WindowsCE. - -Version 1.0.8beta3 [July 11, 2000] - Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS() - for indexed-color input files to avoid potential double-freeing trans array - under some unusual conditions; problem was introduced in version 1.0.6f. - Further revisions to pngtest.c and files in the wince subdirectory. - -Version 1.0.8beta4 [July 14, 2000] - Added the files pngbar.png and pngbar.jpg to the distribution. - Added makefile.cygwin, and cygwin support in pngconf.h - Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory) - -Version 1.0.8rc1 [July 16, 2000] - Revised png_debug() macros and statements to eliminate compiler warnings. - -Version 1.0.8 [July 24, 2000] - Added png_flush() in pngwrite.c, after png_write_IEND(). - Updated makefile.hpux to build a shared library. - -Version 1.0.9beta1 [November 10, 2000] - Fixed typo in scripts/makefile.hpux - Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser) - Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser) - Changed "cdrom.com" in documentation to "libpng.org" - Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg). - Changed type of "params" from voidp to png_voidp in png_read|write_png(). - Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h. - Revised the 3 instances of WRITEFILE in pngtest.c. - Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory. - Updated png.rc in dll/msvc project - Revised makefile.dec to define and use LIBPATH and INCPATH - Increased size of global png_libpng_ver[] array from 12 to 18 chars. - Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const. - Removed duplicate png_crc_finish() from png_handle_bKGD() function. - Added a warning when application calls png_read_update_info() multiple times. - Revised makefile.cygwin - Fixed bugs in iCCP support in pngrutil.c and pngwutil.c. - Replaced png_set_empty_plte_permitted() with png_permit_mng_features(). - -Version 1.0.9beta2 [November 19, 2000] - Renamed the "dll" subdirectory "projects". - Added borland project files to "projects" subdirectory. - Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate. - Add error message in png_set_compression_buffer_size() when malloc fails. - -Version 1.0.9beta3 [November 23, 2000] - Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project. - Removed the png_flush() in pngwrite.c that crashes some applications - that don't set png_output_flush_fn. - Added makefile.macosx and makefile.aix to scripts directory. - -Version 1.0.9beta4 [December 1, 2000] - Change png_chunk_warning to png_warning in png_check_keyword(). - Increased the first part of msg buffer from 16 to 18 in png_chunk_error(). - -Version 1.0.9beta5 [December 15, 2000] - Added support for filter method 64 (for PNG datastreams embedded in MNG). - -Version 1.0.9beta6 [December 18, 2000] - Revised png_set_filter() to accept filter method 64 when appropriate. - Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to - help prevent applications from using MNG features in PNG datastreams. - Added png_permit_mng_features() function. - Revised libpng.3/libpng.txt. Changed "filter type" to "filter method". - -Version 1.0.9rc1 [December 23, 2000] - Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c - Fixed error handling of unknown compression type in png_decompress_chunk(). - In pngconf.h, define __cdecl when _MSC_VER is defined. - -Version 1.0.9beta7 [December 28, 2000] - Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places. - Revised memory management in png_set_hIST and png_handle_hIST in a backward - compatible manner. PLTE and tRNS were revised similarly. - Revised the iCCP chunk reader to ignore trailing garbage. - -Version 1.0.9beta8 [January 12, 2001] - Moved pngasmrd.h into pngconf.h. - Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop. - -Version 1.0.9beta9 [January 15, 2001] - Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to - wince and msvc project module definition files. - Minor revision of makefile.cygwin. - Fixed bug with progressive reading of narrow interlaced images in pngpread.c - -Version 1.0.9beta10 [January 16, 2001] - Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined. - Fixed "png_mmx_supported" typo in project definition files. - -Version 1.0.9beta11 [January 19, 2001] - Updated makefile.sgi to make shared library. - Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED - by default, for the benefit of DLL forward compatibility. These will - be re-enabled in version 1.2.0. - -Version 1.0.9rc2 [January 22, 2001] - Revised cygwin support. - -Version 1.0.9 [January 31, 2001] - Added check of cygwin's ALL_STATIC in pngconf.h - Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos. - -Version 1.0.10beta1 [March 14, 2001] - Revised makefile.dec, makefile.sgi, and makefile.sggcc; added makefile.hpgcc. - Reformatted libpng.3 to eliminate bad line breaks. - Added checks for _mmx_supported in the read_filter_row function of pnggccrd.c - Added prototype for png_mmx_support() near the top of pnggccrd.c - Moved some error checking from png_handle_IHDR to png_set_IHDR. - Added PNG_NO_READ_SUPPORTED and PNG_NO_WRITE_SUPPORTED macros. - Revised png_mmx_support() function in pnggccrd.c - Restored version 1.0.8 PNG_WRITE_EMPTY_PLTE_SUPPORTED behavior in pngwutil.c - Fixed memory leak in contrib/visupng/PngFile.c - Fixed bugs in png_combine_row() in pnggccrd.c and pngvcrd.c (C version) - Added warnings when retrieving or setting gamma=0. - Increased the first part of msg buffer from 16 to 18 in png_chunk_warning(). - -Version 1.0.10rc1 [March 23, 2001] - Changed all instances of memcpy, strcpy, and strlen to png_memcpy, png_strcpy, - and png_strlen. - Revised png_mmx_supported() function in pnggccrd.c to return proper value. - Fixed bug in progressive reading (pngpread.c) with small images (height < 8). - -Version 1.0.10 [March 30, 2001] - Deleted extraneous space (introduced in 1.0.9) from line 42 of makefile.cygwin - Added beos project files (Chris Herborth) - -Version 1.0.11beta1 [April 3, 2001] - Added type casts on several png_malloc() calls (Dimitri Papadapoulos). - Removed a no-longer needed AIX work-around from pngconf.h - Changed several "//" single-line comments to C-style in pnggccrd.c - -Version 1.0.11beta2 [April 11, 2001] - Removed PNGAPI from several functions whose prototypes did not have PNGAPI. - Updated scripts/pngos2.def - -Version 1.0.11beta3 [April 14, 2001] - Added checking the results of many instances of png_malloc() for NULL - -Version 1.0.11beta4 [April 20, 2001] - Undid the changes from version 1.0.11beta3. Added a check for NULL return - from user's malloc_fn(). - Removed some useless type casts of the NULL pointer. - Added makefile.netbsd - -Version 1.0.11 [April 27, 2001] - Revised makefile.netbsd - -Version 1.0.12beta1 [May 14, 2001] - Test for Windows platform in pngconf.h when including malloc.h (Emmanuel Blot) - Updated makefile.cygwin and handling of Cygwin's ALL_STATIC in pngconf.h - Added some never-to-be-executed code in pnggccrd.c to quiet compiler warnings. - Eliminated the png_error about apps using png_read|write_init(). Instead, - libpng will reallocate the png_struct and info_struct if they are too small. - This retains future binary compatibility for old applications written for - libpng-0.88 and earlier. - -Version 1.2.0beta1 [May 6, 2001] - Bumped DLLNUM to 2. - Re-enabled PNG_MNG_FEATURES_SUPPORTED and enabled PNG_ASSEMBLER_CODE_SUPPORTED - by default. - Added runtime selection of MMX features. - Added png_set_strip_error_numbers function and related macros. - -Version 1.2.0beta2 [May 7, 2001] - Finished merging 1.2.0beta1 with version 1.0.11 - Added a check for attempts to read or write PLTE in grayscale PNG datastreams. - -Version 1.2.0beta3 [May 17, 2001] - Enabled user memory function by default. - Modified png_create_struct so it passes user mem_ptr to user memory allocator. - Increased png_mng_features flag from png_byte to png_uint_32. - Bumped shared-library (so-number) and dll-number to 3. - -Version 1.2.0beta4 [June 23, 2001] - Check for missing profile length field in iCCP chunk and free chunk_data - in case of truncated iCCP chunk. - Bumped shared-library number to 3 in makefile.sgi and makefile.sggcc - Bumped dll-number from 2 to 3 in makefile.cygwin - Revised contrib/gregbook/rpng*-x.c to avoid a memory leak and to exit cleanly - if user attempts to run it on an 8-bit display. - Updated contrib/gregbook - Use png_malloc instead of png_zalloc to allocate palette in pngset.c - Updated makefile.ibmc - Added some typecasts to eliminate gcc 3.0 warnings. Changed prototypes - of png_write_oFFS width and height from png_uint_32 to png_int_32. - Updated example.c - Revised prototypes for png_debug_malloc and png_debug_free in pngtest.c - -Version 1.2.0beta5 [August 8, 2001] - Revised contrib/gregbook - Revised makefile.gcmmx - Revised pnggccrd.c to conditionally compile some thread-unsafe code only - when PNG_THREAD_UNSAFE_OK is defined. - Added tests to prevent pngwutil.c from writing a bKGD or tRNS chunk with - value exceeding 2^bit_depth-1 - Revised makefile.sgi and makefile.sggcc - Replaced calls to fprintf(stderr,...) with png_warning() in pnggccrd.c - Removed restriction that do_invert_mono only operate on 1-bit opaque files - -Version 1.2.0 [September 1, 2001] - Changed a png_warning() to png_debug() in pnggccrd.c - Fixed contrib/gregbook/rpng-x.c, rpng2-x.c to avoid crash with XFreeGC(). - -Version 1.2.1beta1 [October 19, 2001] - Revised makefile.std in contrib/pngminus - Include background_1 in png_struct regardless of gamma support. - Revised makefile.netbsd and makefile.macosx, added makefile.darwin. - Revised example.c to provide more details about using row_callback(). - -Version 1.2.1beta2 [October 25, 2001] - Added type cast to each NULL appearing in a function call, except for - WINCE functions. - Added makefile.so9. - -Version 1.2.1beta3 [October 27, 2001] - Removed type casts from all NULLs. - Simplified png_create_struct_2(). - -Version 1.2.1beta4 [November 7, 2001] - Revised png_create_info_struct() and png_creat_struct_2(). - Added error message if png_write_info() was omitted. - Type cast NULLs appearing in function calls when _NO_PROTO or - PNG_TYPECAST_NULL is defined. - -Version 1.2.1rc1 [November 24, 2001] - Type cast NULLs appearing in function calls except when PNG_NO_TYPECAST_NULL - is defined. - Changed typecast of "size" argument to png_size_t in pngmem.c calls to - the user malloc_fn, to agree with the prototype in png.h - Added a pop/push operation to pnggccrd.c, to preserve Eflag (Maxim Sobolev) - Updated makefile.sgi to recognize LIBPATH and INCPATH. - Updated various makefiles so "make clean" does not remove previous major - version of the shared library. - -Version 1.2.1rc2 [December 4, 2001] - Always allocate 256-entry internal palette, hist, and trans arrays, to - avoid out-of-bounds memory reference caused by invalid PNG datastreams. - Added a check for prefix_length > data_length in iCCP chunk handler. - -Version 1.2.1 [December 7, 2001] - None. - -Version 1.2.2beta1 [February 22, 2002] - Fixed a bug with reading the length of iCCP profiles (Larry Reeves). - Revised makefile.linux, makefile.gcmmx, and makefile.sgi to generate - libpng.a, libpng12.so (not libpng.so.3), and libpng12/png.h - Revised makefile.darwin to remove "-undefined suppress" option. - Added checks for gamma and chromaticity values over 21474.83, which exceed - the limit for PNG unsigned 32-bit integers when encoded. - Revised calls to png_create_read_struct() and png_create_write_struct() - for simpler debugging. - Revised png_zalloc() so zlib handles errors (uses PNG_FLAG_MALLOC_NULL_MEM_OK) - -Version 1.2.2beta2 [February 23, 2002] - Check chunk_length and idat_size for invalid (over PNG_MAX_UINT) lengths. - Check for invalid image dimensions in png_get_IHDR. - Added missing "fi;" in the install target of the SGI makefiles. - Added install-static to all makefiles that make shared libraries. - Always do gamma compensation when image is partially transparent. - -Version 1.2.2beta3 [March 7, 2002] - Compute background.gray and background_1.gray even when color_type is RGB - in case image gets reduced to gray later. - Modified shared-library makefiles to install pkgconfig/libpngNN.pc. - Export (with PNGAPI) png_zalloc, png_zfree, and png_handle_as_unknown - Removed unused png_write_destroy_info prototype from png.h - Eliminated incorrect use of width_mmx from pnggccrd.c in pixel_bytes == 8 case - Added install-shared target to all makefiles that make shared libraries. - Stopped a double free of palette, hist, and trans when not using free_me. - Added makefile.32sunu for Sun Ultra 32 and makefile.64sunu for Sun Ultra 64. - -Version 1.2.2beta4 [March 8, 2002] - Compute background.gray and background_1.gray even when color_type is RGB - in case image gets reduced to gray later (Jason Summers). - Relocated a misplaced /bin/rm in the "install-shared" makefile targets - Added PNG_1_0_X macro which can be used to build a 1.0.x-compatible library. - -Version 1.2.2beta5 [March 26, 2002] - Added missing PNGAPI to several function definitions. - Check for invalid bit_depth or color_type in png_get_IHDR(), and - check for missing PLTE or IHDR in png_push_read_chunk() (Matthias Clasen). - Revised iTXt support to accept NULL for lang and lang_key. - Compute gamma for color components of background even when color_type is gray. - Changed "()" to "{}" in scripts/libpng.pc.in. - Revised makefiles to put png.h and pngconf.h only in $prefix/include/libpngNN - Revised makefiles to make symlink to libpng.so.NN in addition to libpngNN.so - -Version 1.2.2beta6 [March 31, 2002] - -Version 1.0.13beta1 [March 31, 2002] - Prevent png_zalloc() from trying to memset memory that it failed to acquire. - Add typecasts of PNG_MAX_UINT in pngset_cHRM_fixed() (Matt Holgate). - Ensure that the right function (user or default) is used to free the - png_struct after an error in png_create_read_struct_2(). - -Version 1.2.2rc1 [April 7, 2002] - -Version 1.0.13rc1 [April 7, 2002] - Save the ebx register in pnggccrd.c (Sami Farin) - Add "mem_ptr = png_ptr->mem_ptr" in png_destroy_write_struct() (Paul Gardner). - Updated makefiles to put headers in include/libpng and remove old include/*.h. - -Version 1.2.2 [April 15, 2002] - -Version 1.0.13 [April 15, 2002] - Revised description of png_set_filter() in libpng.3/libpng.txt. - Revised makefile.netbsd and added makefile.neNNbsd and makefile.freebsd - -Version 1.0.13patch01 [April 17, 2002] - -Version 1.2.2patch01 [April 17, 2002] - Changed ${PNGMAJ}.${PNGVER} bug to ${PNGVER} in makefile.sgi and - makefile.sggcc - Fixed VER -> PNGVER typo in makefile.macosx and added install-static to - install - Added install: target to makefile.32sunu and makefile.64sunu - -Version 1.0.13patch03 [April 18, 2002] - -Version 1.2.2patch03 [April 18, 2002] - Revised 15 makefiles to link libpng.a to libpngNN.a and the include libpng - subdirectory to libpngNN subdirectory without the full pathname. - Moved generation of libpng.pc from "install" to "all" in 15 makefiles. - -Version 1.2.3rc1 [April 28, 2002] - Added install-man target to 15 makefiles (Dimitri Papadopolous-Orfanos). - Added $(DESTDIR) feature to 24 makefiles (Tim Mooney) - Fixed bug with $prefix, should be $(prefix) in makefile.hpux. - Updated cygwin-specific portion of pngconf.h and revised makefile.cygwin - Added a link from libpngNN.pc to libpng.pc in 15 makefiles. - Added links from include/libpngNN/*.h to include/*.h in 24 makefiles. - Revised makefile.darwin to make relative links without full pathname. - Added setjmp() at the end of png_create_*_struct_2() in case user forgets - to put one in their application. - Restored png_zalloc() and png_zfree() prototypes to version 1.2.1 and - removed them from module definition files. - -Version 1.2.3rc2 [May 1, 2002] - Fixed bug in reporting number of channels in pngget.c and pngset.c, - that was introduced in version 1.2.2beta5. - Exported png_zalloc(), png_zfree(), png_default_read(), png_default_write(), - png_default_flush(), and png_push_fill_buffer() and included them in - module definition files. - Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles. - -Version 1.2.3rc3 [May 1, 2002] - Revised prototype for png_default_flush() - Remove old libpng.pc and libpngNN.pc before installing new ones. - -Version 1.2.3rc4 [May 2, 2002] - Typos in *.def files (png_default_read|write -> png_default_read|write_data) - In makefiles, changed rm libpng.NN.pc to rm libpngNN.pc - Added libpng-config and libpngNN-config and modified makefiles to install - them. - Changed $(MANPATH) to $(DESTDIR)$(MANPATH) in makefiles - Added "Win32 DLL VB" configuration to projects/msvc/libpng.dsp - -Version 1.2.3rc5 [May 11, 2002] - Changed "error" and "message" in prototypes to "error_message" and - "warning_message" to avoid namespace conflict. - Revised 15 makefiles to build libpng-config from libpng-config-*.in - Once more restored png_zalloc and png_zfree to regular nonexported form. - Restored png_default_read|write_data, png_default_flush, png_read_fill_buffer - to nonexported form, but with PNGAPI, and removed them from module def - files. - -Version 1.2.3rc6 [May 14, 2002] - Removed "PNGAPI" from png_zalloc() and png_zfree() in png.c - Changed "Gz" to "Gd" in projects/msvc/libpng.dsp and zlib.dsp. - Removed leftover libpng-config "sed" script from four makefiles. - Revised libpng-config creating script in 16 makefiles. - -Version 1.2.3 [May 22, 2002] - Revised libpng-config target in makefile.cygwin. - Removed description of png_set_mem_fn() from documentation. - Revised makefile.freebsd. - Minor cosmetic changes to 15 makefiles, e.g., $(DI) = $(DESTDIR)/$(INCDIR). - Revised projects/msvc/README.txt - Changed -lpng to -lpngNN in LDFLAGS in several makefiles. - -Version 1.2.4beta1 [May 24, 2002] - Added libpng.pc and libpng-config to "all:" target in 16 makefiles. - Fixed bug in 16 makefiles: $(DESTDIR)/$(LIBPATH) to $(DESTDIR)$(LIBPATH) - Added missing "\" before closing double quote in makefile.gcmmx. - Plugged various memory leaks; added png_malloc_warn() and png_set_text_2() - functions. - -Version 1.2.4beta2 [June 25, 2002] - Plugged memory leak of png_ptr->current_text (Matt Holgate). - Check for buffer overflow before reading CRC in pngpread.c (Warwick Allison) - Added -soname to the loader flags in makefile.dec, makefile.sgi, and - makefile.sggcc. - Added "test-installed" target to makefile.linux, makefile.gcmmx, - makefile.sgi, and makefile.sggcc. - -Version 1.2.4beta3 [June 28, 2002] - Plugged memory leak of row_buf in pngtest.c when there is a png_error(). - Detect buffer overflow in pngpread.c when IDAT is corrupted with extra data. - Added "test-installed" target to makefile.32sunu, makefile.64sunu, - makefile.beos, makefile.darwin, makefile.dec, makefile.macosx, - makefile.solaris, makefile.hpux, makefile.hpgcc, and makefile.so9. - -Version 1.2.4rc1 and 1.0.14rc1 [July 2, 2002] - Added "test-installed" target to makefile.cygwin and makefile.sco. - Revised pnggccrd.c to be able to back out version 1.0.x via PNG_1_0_X macro. - -Version 1.2.4 and 1.0.14 [July 8, 2002] - Changed png_warning() to png_error() when width is too large to process. - -Version 1.2.4patch01 [July 20, 2002] - Revised makefile.cygwin to use DLL number 12 instead of 13. - -Version 1.2.5beta1 [August 6, 2002] - Added code to contrib/gregbook/readpng2.c to ignore unused chunks. - Replaced toucan.png in contrib/gregbook (it has been corrupt since 1.0.11) - Removed some stray *.o files from contrib/gregbook. - Changed png_error() to png_warning() about "Too much data" in pngpread.c - and about "Extra compressed data" in pngrutil.c. - Prevent png_ptr->pass from exceeding 7 in png_push_finish_row(). - Updated makefile.hpgcc - Updated png.c and pnggccrd.c handling of return from png_mmx_support() - -Version 1.2.5beta2 [August 15, 2002] - Only issue png_warning() about "Too much data" in pngpread.c when avail_in - is nonzero. - Updated makefiles to install a separate libpng.so.3 with its own rpath. - -Version 1.2.5rc1 and 1.0.15rc1 [August 24, 2002] - Revised makefiles to not remove previous minor versions of shared libraries. - -Version 1.2.5rc2 and 1.0.15rc2 [September 16, 2002] - Revised 13 makefiles to remove "-lz" and "-L$(ZLIBLIB)", etc., from shared - library loader directive. - Added missing "$OBJSDLL" line to makefile.gcmmx. - Added missing "; fi" to makefile.32sunu. - -Version 1.2.5rc3 and 1.0.15rc3 [September 18, 2002] - Revised libpng-config script. - -Version 1.2.5 and 1.0.15 [October 3, 2002] - Revised makefile.macosx, makefile.darwin, makefile.hpgcc, and makefile.hpux, - and makefile.aix. - Relocated two misplaced PNGAPI lines in pngtest.c - -Version 1.2.6beta1 [October 22, 2002] - Commented out warning about uninitialized mmx_support in pnggccrd.c. - Changed "IBMCPP__" flag to "__IBMCPP__" in pngconf.h. - Relocated two more misplaced PNGAPI lines in pngtest.c - Fixed memory overrun bug in png_do_read_filler() with 16-bit datastreams, - introduced in version 1.0.2. - Revised makefile.macosx, makefile.dec, makefile.aix, and makefile.32sunu. - -Version 1.2.6beta2 [November 1, 2002] - Added libpng-config "--ldopts" output. - Added "AR=ar" and "ARFLAGS=rc" and changed "ar rc" to "$(AR) $(ARFLAGS)" - in makefiles. - -Version 1.2.6beta3 [July 18, 2004] - Reverted makefile changes from version 1.2.6beta2 and some of the changes - from version 1.2.6beta1; these will be postponed until version 1.2.7. - Version 1.2.6 is going to be a simple bugfix release. - Changed the one instance of "ln -sf" to "ln -f -s" in each Sun makefile. - Fixed potential overrun in pngerror.c by using strncpy instead of memcpy. - Added "#!/bin/sh" at the top of configure, for recognition of the - 'x' flag under Cygwin (Cosmin). - Optimized vacuous tests that silence compiler warnings, in png.c (Cosmin). - Added support for PNG_USER_CONFIG, in pngconf.h (Cosmin). - Fixed the special memory handler for Borland C under DOS, in pngmem.c - (Cosmin). - Removed some spurious assignments in pngrutil.c (Cosmin). - Replaced 65536 with 65536L, and 0xffff with 0xffffL, to silence warnings - on 16-bit platforms (Cosmin). - Enclosed shift op expressions in parentheses, to silence warnings (Cosmin). - Used proper type png_fixed_point, to avoid problems on 16-bit platforms, - in png_handle_sRGB() (Cosmin). - Added compression_type to png_struct, and optimized the window size - inside the deflate stream (Cosmin). - Fixed definition of isnonalpha(), in pngerror.c and pngrutil.c (Cosmin). - Fixed handling of unknown chunks that come after IDAT (Cosmin). - Allowed png_error() and png_warning() to work even if png_ptr == NULL - (Cosmin). - Replaced row_info->rowbytes with row_bytes in png_write_find_filter() - (Cosmin). - Fixed definition of PNG_LIBPNG_VER_DLLNUM (Simon-Pierre). - Used PNG_LIBPNG_VER and PNG_LIBPNG_VER_STRING instead of the hardcoded - values in png.c (Simon-Pierre, Cosmin). - Initialized png_libpng_ver[] with PNG_LIBPNG_VER_STRING (Simon-Pierre). - Replaced PNG_LIBPNG_VER_MAJOR with PNG_LIBPNG_VER_DLLNUM in png.rc - (Simon-Pierre). - Moved the definition of PNG_HEADER_VERSION_STRING near the definitions - of the other PNG_LIBPNG_VER_... symbols in png.h (Cosmin). - Relocated #ifndef PNGAPI guards in pngconf.h (Simon-Pierre, Cosmin). - Updated scripts/makefile.vc(a)win32 (Cosmin). - Updated the MSVC project (Simon-Pierre, Cosmin). - Updated the Borland C++ Builder project (Cosmin). - Avoided access to asm_flags in pngvcrd.c, if PNG_1_0_X is defined (Cosmin). - Commented out warning about uninitialized mmx_support in pngvcrd.c (Cosmin). - Removed scripts/makefile.bd32 and scripts/pngdef.pas (Cosmin). - Added extra guard around inclusion of Turbo C memory headers, in pngconf.h - (Cosmin). - Renamed projects/msvc/ to projects/visualc6/, and projects/borland/ to - projects/cbuilder5/ (Cosmin). - Moved projects/visualc6/png32ms.def to scripts/pngw32.def, - and projects/visualc6/png.rc to scripts/pngw32.rc (Cosmin). - Added projects/visualc6/pngtest.dsp; removed contrib/msvctest/ (Cosmin). - Changed line endings to DOS style in cbuilder5 and visualc6 files, even - in the tar.* distributions (Cosmin). - Updated contrib/visupng/VisualPng.dsp (Cosmin). - Updated contrib/visupng/cexcept.h to version 2.0.0 (Cosmin). - Added a separate distribution with "configure" and supporting files (Junichi). - -Version 1.2.6beta4 [July 28, 2004] - Added user ability to change png_size_t via a PNG_SIZE_T macro. - Added png_sizeof() and png_convert_size() functions. - Added PNG_SIZE_MAX (maximum value of a png_size_t variable. - Added check in png_malloc_default() for (size_t)size != (png_uint_32)size - which would indicate an overflow. - Changed sPLT failure action from png_error to png_warning and abandon chunk. - Changed sCAL and iCCP failures from png_error to png_warning and abandon. - Added png_get_uint_31(png_ptr, buf) function. - Added PNG_UINT_32_MAX macro. - Renamed PNG_MAX_UINT to PNG_UINT_31_MAX. - Made png_zalloc() issue a png_warning and return NULL on potential - overflow. - Turn on PNG_NO_ZALLOC_ZERO by default in version 1.2.x - Revised "clobber list" in pnggccrd.c so it will compile under gcc-3.4. - Revised Borland portion of png_malloc() to return NULL or issue - png_error() according to setting of PNG_FLAG_MALLOC_NULL_MEM_OK. - Added PNG_NO_SEQUENTIAL_READ_SUPPORTED macro to conditionally remove - sequential read support. - Added some "#if PNG_WRITE_SUPPORTED" blocks. - Added #ifdef to remove some redundancy in png_malloc_default(). - Use png_malloc instead of png_zalloc to allocate the pallete. - -Version 1.0.16rc1 and 1.2.6rc1 [August 4, 2004] - Fixed buffer overflow vulnerability in png_handle_tRNS() - Fixed integer arithmetic overflow vulnerability in png_read_png(). - Fixed some harmless bugs in png_handle_sBIT, etc, that would cause - duplicate chunk types to go undetected. - Fixed some timestamps in the -config version - Rearranged order of processing of color types in png_handle_tRNS(). - Added ROWBYTES macro to calculate rowbytes without integer overflow. - Updated makefile.darwin and removed makefile.macosx from scripts directory. - Imposed default one million column, one-million row limits on the image - dimensions, and added png_set_user_limits() function to override them. - Revised use of PNG_SET_USER_LIMITS_SUPPORTED macro. - Fixed wrong cast of returns from png_get_user_width|height_max(). - Changed some "keep the compiler happy" from empty statements to returns, - Revised libpng.txt to remove 1.2.x stuff from the 1.0.x distribution - -Version 1.0.16rc2 and 1.2.6rc2 [August 7, 2004] - Revised makefile.darwin and makefile.solaris. Removed makefile.macosx. - Revised pngtest's png_debug_malloc() to use png_malloc() instead of - png_malloc_default() which is not supposed to be exported. - Fixed off-by-one error in one of the conversions to PNG_ROWBYTES() in - pngpread.c. Bug was introduced in 1.2.6rc1. - Fixed bug in RGB to RGBX transformation introduced in 1.2.6rc1. - Fixed old bug in RGB to Gray transformation. - Fixed problem with 64-bit compilers by casting arguments to abs() - to png_int_32. - Changed "ln -sf" to "ln -f -s" in three makefiles (solaris, sco, so9). - Changed "HANDLE_CHUNK_*" to "PNG_HANDLE_CHUNK_*" (Cosmin) - Added "-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)" to 15 *NIX makefiles. - Added code to update the row_info->colortype in png_do_read_filler() (MSB). - -Version 1.0.16rc3 and 1.2.6rc3 [August 9, 2004] - Eliminated use of "abs()" in testing cHRM and gAMA values, to avoid - trouble with some 64-bit compilers. Created PNG_OUT_OF_RANGE() macro. - Revised documentation of png_set_keep_unknown_chunks(). - Check handle_as_unknown status in pngpread.c, as in pngread.c previously. - Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_INTERNAL section of png.h - Added "rim" definitions for CONST4 and CONST6 in pnggccrd.c - -Version 1.0.16rc4 and 1.2.6rc4 [August 10, 2004] - Fixed mistake in pngtest.c introduced in 1.2.6rc2 (declaration of - "pinfo" was out of place). - -Version 1.0.16rc5 and 1.2.6rc5 [August 10, 2004] - Moved "PNG_HANDLE_CHUNK_*" macros out of PNG_ASSEMBLER_CODE_SUPPORTED - section of png.h where they were inadvertently placed in version rc3. - -Version 1.2.6 and 1.0.16 [August 15, 2004] - Revised pngtest so memory allocation testing is only done when PNG_DEBUG==1. - -Version 1.2.7beta1 [August 26, 2004] - Removed unused pngasmrd.h file. - Removed references to uu.net for archived files. Added references to - PNG Spec (second edition) and the PNG ISO/IEC Standard. - Added "test-dd" target in 15 makefiles, to run pngtest in DESTDIR. - Fixed bug with "optimized window size" in the IDAT datastream, that - causes libpng to write PNG files with incorrect zlib header bytes. - -Version 1.2.7beta2 [August 28, 2004] - Fixed bug with sCAL chunk and big-endian machines (David Munro). - Undid new code added in 1.2.6rc2 to update the color_type in - png_set_filler(). - Added png_set_add_alpha() that updates color type. - -Version 1.0.17rc1 and 1.2.7rc1 [September 4, 2004] - Revised png_set_strip_filler() to not remove alpha if color_type has alpha. - -Version 1.2.7 and 1.0.17 [September 12, 2004] - Added makefile.hp64 - Changed projects/msvc/png32ms.def to scripts/png32ms.def in makefile.cygwin - -Version 1.2.8beta1 [November 1, 2004] - Fixed bug in png_text_compress() that would fail to complete a large block. - Fixed bug, introduced in libpng-1.2.7, that overruns a buffer during - strip alpha operation in png_do_strip_filler(). - Added PNG_1_2_X definition in pngconf.h - Use #ifdef to comment out png_info_init in png.c and png_read_init in - pngread.c (as of 1.3.0) - -Version 1.2.8beta2 [November 2, 2004] - Reduce color_type to a nonalpha type after strip alpha operation in - png_do_strip_filler(). - -Version 1.2.8beta3 [November 3, 2004] - Revised definitions of PNG_MAX_UINT_32, PNG_MAX_SIZE, and PNG_MAXSUM - -Version 1.2.8beta4 [November 12, 2004] - Fixed (again) definition of PNG_LIBPNG_VER_DLLNUM in png.h (Cosmin). - Added PNG_LIBPNG_BUILD_PRIVATE in png.h (Cosmin). - Set png_ptr->zstream.data_type to Z_BINARY, to avoid unnecessary detection - of data type in deflate (Cosmin). - Deprecated but continue to support SPECIALBUILD and PRIVATEBUILD in favor of - PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. - -Version 1.2.8beta5 [November 20, 2004] - Use png_ptr->flags instead of png_ptr->transformations to pass - PNG_STRIP_ALPHA info to png_do_strip_filler(), to preserve ABI - compatibility. - Revised handling of SPECIALBUILD, PRIVATEBUILD, - PNG_LIBPNG_BUILD_SPECIAL_STRING and PNG_LIBPNG_BUILD_PRIVATE_STRING. - -Version 1.2.8rc1 [November 24, 2004] - Moved handling of BUILD macros from pngconf.h to png.h - Added definition of PNG_LIBPNG_BASE_TYPE in png.h, inadvertently - omitted from beta5. - Revised scripts/pngw32.rc - Despammed mailing addresses by masking "@" with "at". - Inadvertently installed a supposedly faster test version of pngrutil.c - -Version 1.2.8rc2 [November 26, 2004] - Added two missing "\" in png.h - Change tests in pngread.c and pngpread.c to - if (png_ptr->transformations || (png_ptr->flags&PNG_FLAG_STRIP_ALPHA)) - png_do_read_transformations(png_ptr); - -Version 1.2.8rc3 [November 28, 2004] - Reverted pngrutil.c to version libpng-1.2.8beta5. - Added scripts/makefile.elf with supporting code in pngconf.h for symbol - versioning (John Bowler). - -Version 1.2.8rc4 [November 29, 2004] - Added projects/visualc7 (Simon-pierre). - -Version 1.2.8rc5 [November 29, 2004] - Fixed new typo in scripts/pngw32.rc - -Version 1.2.8 [December 3, 2004] - Removed projects/visualc7, added projects/visualc71. - -Version 1.2.9beta1 [February 21, 2006] - Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints - Revised man page and libpng.txt to make it clear that one should not call - png_read_end or png_write_end after png_read_png or png_write_png. - Updated references to png-mng-implement mailing list. - Fixed an incorrect typecast in pngrutil.c - Added PNG_NO_READ_SUPPORTED conditional for making a write-only library. - Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional. - Optimized alpha-inversion loops in pngwtran.c - Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c - Make sure num_trans is <= 256 before copying data in png_set_tRNS(). - Make sure num_palette is <= 256 before copying data in png_set_PLTE(). - Interchanged order of write_swap_alpha and write_invert_alpha transforms. - Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin). - Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin). - Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin). - Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16, - png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin). - Added type cast (png_byte) in png_write_sCAL() (Cosmin). - Fixed scripts/makefile.cygwin (Christian Biesinger, Cosmin). - Default iTXt support was inadvertently enabled. - -Version 1.2.9beta2 [February 21, 2006] - Check for png_rgb_to_gray and png_gray_to_rgb read transformations before - checking for png_read_dither in pngrtran.c - Revised checking of chromaticity limits to accommodate extended RGB - colorspace (John Denker). - Changed line endings in some of the project files to CRLF, even in the - "Unix" tar distributions (Cosmin). - Made png_get_int_32 and png_save_int_32 always available (Cosmin). - Updated scripts/pngos2.def, scripts/pngw32.def and projects/wince/png32ce.def - with the newly exported functions. - Eliminated distributions without the "configure" script. - Updated INSTALL instructions. - -Version 1.2.9beta3 [February 24, 2006] - Fixed CRCRLF line endings in contrib/visupng/VisualPng.dsp - Made libpng.pc respect EXEC_PREFIX (D. P. Kreil, J. Bowler) - Removed reference to pngasmrd.h from Makefile.am - Renamed CHANGES to ChangeLog. - Renamed LICENSE to COPYING. - Renamed ANNOUNCE to NEWS. - Created AUTHORS file. - -Version 1.2.9beta4 [March 3, 2006] - Changed definition of PKGCONFIG from $prefix/lib to $libdir in configure.ac - Reverted to filenames LICENSE and ANNOUNCE; removed AUTHORS and COPYING. - Removed newline from the end of some error and warning messages. - Removed test for sqrt() from configure.ac and configure. - Made swap tables in pngtrans.c PNG_CONST (Carlo Bramix). - Disabled default iTXt support that was inadvertently enabled in - libpng-1.2.9beta1. - Added "OS2" to list of systems that don't need underscores, in pnggccrd.c - Removed libpng version and date from *.c files. - -Version 1.2.9beta5 [March 4, 2006] - Removed trailing blanks from source files. - Put version and date of latest change in each source file, and changed - copyright year accordingly. - More cleanup of configure.ac, Makefile.am, and associated scripts. - Restored scripts/makefile.elf which was inadvertently deleted. - -Version 1.2.9beta6 [March 6, 2006] - Fixed typo (RELEASE) in configuration files. - -Version 1.2.9beta7 [March 7, 2006] - Removed libpng.vers and libpng.sym from libpng12_la_SOURCES in Makefile.am - Fixed inconsistent #ifdef's around png_sig_bytes() and png_set_sCAL_s() - in png.h. - Updated makefile.elf as suggested by debian. - Made cosmetic changes to some makefiles, adding LN_SF and other macros. - Made some makefiles accept "exec_prefix". - -Version 1.2.9beta8 [March 9, 2006] - Fixed some "#if defined (..." which should be "#if defined(..." - Bug introduced in libpng-1.2.8. - Fixed inconsistency in definition of png_default_read_data() - Restored blank that was lost from makefile.sggcc "clean" target in beta7. - Revised calculation of "current" and "major" for irix in ltmain.sh - Changed "mkdir" to "MKDIR_P" in some makefiles. - Separated PNG_EXPAND and PNG_EXPAND_tRNS. - Added png_set_expand_gray_1_2_4_to_8() and deprecated - png_set_gray_1_2_4_to_8() which also expands tRNS to alpha. - -Version 1.2.9beta9 [March 10, 2006] - Include "config.h" in pngconf.h when available. - Added some checks for NULL png_ptr or NULL info_ptr (timeless) - -Version 1.2.9beta10 [March 20, 2006] - Removed extra CR from contrib/visualpng/VisualPng.dsw (Cosmin) - Made pnggccrd.c PIC-compliant (Christian Aichinger). - Added makefile.mingw (Wolfgang Glas). - Revised pngconf.h MMX checking. - -Version 1.2.9beta11 [March 22, 2006] - Fixed out-of-order declaration in pngwrite.c that was introduced in beta9 - Simplified some makefiles by using LIBSO, LIBSOMAJ, and LIBSOVER macros. - -Version 1.2.9rc1 [March 31, 2006] - Defined PNG_USER_PRIVATEBUILD when including "pngusr.h" (Cosmin). - Removed nonsensical assertion check from pngtest.c (Cosmin). - -Version 1.2.9 [April 14, 2006] - Revised makefile.beos and added "none" selector in ltmain.sh - -Version 1.2.10beta1 [April 15, 2006] - Renamed "config.h" to "png_conf.h" and revised Makefile.am to add - -DPNG_BUILDING_LIBPNG to compile directive, and modified pngconf.h - to include png_conf.h only when PNG_BUILDING_LIBPNG is defined. - -Version 1.2.10beta2 [April 15, 2006] - Manually updated Makefile.in and configure. Changed png_conf.h.in - back to config.h. - -Version 1.2.10beta3 [April 15, 2006] - Change png_conf.h back to config.h in pngconf.h. - -Version 1.2.10beta4 [April 16, 2006] - Change PNG_BUILDING_LIBPNG to PNG_CONFIGURE_LIBPNG in config/Makefile*. - -Version 1.2.10beta5 [April 16, 2006] - Added a configure check for compiling assembler code in pnggccrd.c - -Version 1.2.10beta6 [April 17, 2006] - Revised the configure check for pnggccrd.c - Moved -DPNG_CONFIGURE_LIBPNG into @LIBPNG_DEFINES@ - Added @LIBPNG_DEFINES@ to arguments when building libpng.sym - -Version 1.2.10beta7 [April 18, 2006] - Change "exec_prefix=$prefix" to "exec_prefix=$(prefix)" in makefiles. - -Version 1.2.10rc1 [April 19, 2006] - Ensure pngconf.h doesn't define both PNG_USE_PNGGCCRD and PNG_USE_PNGVCRD - Fixed "LN_FS" typo in makefile.sco and makefile.solaris. - -Version 1.2.10rc2 [April 20, 2006] - Added a backslash between -DPNG_CONFIGURE_LIBPNG and -DPNG_NO_ASSEMBLER_CODE - in configure.ac and configure - Made the configure warning about versioned symbols less arrogant. - -Version 1.2.10rc3 [April 21, 2006] - Added a note in libpng.txt that png_set_sig_bytes(8) can be used when - writing an embedded PNG without the 8-byte signature. - Revised makefiles and configure to avoid making links to libpng.so.* - -Version 1.2.10 [April 23, 2006] - Reverted configure to "rc2" state. - -Version 1.2.11beta1 [May 31, 2006] - scripts/libpng.pc.in contained "configure" style version info and would - not work with makefiles. - The shared-library makefiles were linking to libpng.so.0 instead of - libpng.so.3 compatibility as the library. - -Version 1.2.11beta2 [June 2, 2006] - Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid - buffer overflow. - Fixed bug in example.c (png_set_palette_rgb -> png_set_palette_to_rgb) - -Version 1.2.11beta3 [June 5, 2006] - Prepended "#! /bin/sh" to ltmail.sh and contrib/pngminus/*.sh (Cosmin). - Removed the accidental leftover Makefile.in~ (Cosmin). - Avoided potential buffer overflow and optimized buffer in - png_write_sCAL(), png_write_sCAL_s() (Cosmin). - Removed the include directories and libraries from CFLAGS and LDFLAGS - in scripts/makefile.gcc (Nelson A. de Oliveira, Cosmin). - -Version 1.2.11beta4 [June 6, 2006] - Allow zero-length IDAT chunks after the entire zlib datastream, but not - after another intervening chunk type. - -Version 1.0.19rc1, 1.2.11rc1 [June 13, 2006] - Deleted extraneous square brackets from [config.h] in configure.ac - -Version 1.0.19rc2, 1.2.11rc2 [June 14, 2006] - Added prototypes for PNG_INCH_CONVERSIONS functions to png.h - Revised INSTALL and autogen.sh - Fixed typo in several makefiles (-W1 should be -Wl) - Added typedef for png_int_32 and png_uint_32 on 64-bit systems. - -Version 1.0.19rc3, 1.2.11rc3 [June 15, 2006] - Removed the new typedefs for 64-bit systems (delay until version 1.4.0) - Added one zero element to png_gamma_shift[] array in pngrtran.c to avoid - reading out of bounds. - -Version 1.0.19rc4, 1.2.11rc4 [June 15, 2006] - Really removed the new typedefs for 64-bit systems. - -Version 1.0.19rc5, 1.2.11rc5 [June 22, 2006] - Removed png_sig_bytes entry from scripts/pngw32.def - -Version 1.0.19, 1.2.11 [June 26, 2006] - None. - -Version 1.0.20, 1.2.12 [June 27, 2006] - Really increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid - buffer overflow. - -Version 1.2.13beta1 [October 2, 2006] - Removed AC_FUNC_MALLOC from configure.ac - Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h - Change "logical" to "bitwise" throughout documentation. - Detect and fix attempt to write wrong iCCP profile length (CVE-2006-7244) - -Version 1.0.21, 1.2.13 [November 14, 2006] - Fix potential buffer overflow in sPLT chunk handler. - Fix Makefile.am to not try to link to noexistent files. - Check all exported functions for NULL png_ptr. - -Version 1.2.14beta1 [November 17, 2006] - Relocated three misplaced tests for NULL png_ptr. - Built Makefile.in with automake-1.9.6 instead of 1.9.2. - Build configure with autoconf-2.60 instead of 2.59 - -Version 1.2.14beta2 [November 17, 2006] - Added some typecasts in png_zalloc(). - -Version 1.2.14rc1 [November 20, 2006] - Changed "strtod" to "png_strtod" in pngrutil.c - -Version 1.0.22, 1.2.14 [November 27, 2006] - Added missing "$(srcdir)" in Makefile.am and Makefile.in - -Version 1.2.15beta1 [December 3, 2006] - Generated configure with autoconf-2.61 instead of 2.60 - Revised configure.ac to update libpng.pc and libpng-config. - -Version 1.2.15beta2 [December 3, 2006] - Always export MMX asm functions, just stubs if not building pnggccrd.c - -Version 1.2.15beta3 [December 4, 2006] - Add "png_bytep" typecast to profile while calculating length in pngwutil.c - -Version 1.2.15beta4 [December 7, 2006] - Added scripts/CMakeLists.txt - Changed PNG_NO_ASSEMBLER_CODE to PNG_NO_MMX_CODE in scripts, like 1.4.0beta - -Version 1.2.15beta5 [December 7, 2006] - Changed some instances of PNG_ASSEMBLER_* to PNG_MMX_* in pnggccrd.c - Revised scripts/CMakeLists.txt - -Version 1.2.15beta6 [December 13, 2006] - Revised scripts/CMakeLists.txt and configure.ac - -Version 1.2.15rc1 [December 18, 2006] - Revised scripts/CMakeLists.txt - -Version 1.2.15rc2 [December 21, 2006] - Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. - Added scripts/makefile.nommx - -Version 1.2.15rc3 [December 25, 2006] - Fixed shared library numbering error that was introduced in 1.2.15beta6. - -Version 1.2.15rc4 [December 27, 2006] - Fixed handling of rgb_to_gray when png_ptr->color.gray isn't set. - -Version 1.2.15rc5 [December 31, 2006] - Revised handling of rgb_to_gray. - -Version 1.2.15 [January 5, 2007] - Added some (unsigned long) typecasts in pngtest.c to avoid printing errors. - -Version 1.2.16beta1 [January 6, 2007] - Fix bugs in makefile.nommx - -Version 1.2.16beta2 [January 16, 2007] - Revised scripts/CMakeLists.txt - -Version 1.2.16 [January 31, 2007] - No changes. - -Version 1.2.17beta1 [March 6, 2007] - Revised scripts/CMakeLists.txt to install both shared and static libraries. - Deleted a redundant line from pngset.c. - -Version 1.2.17beta2 [April 26, 2007] - Relocated misplaced test for png_ptr == NULL in pngpread.c - Change "==" to "&" for testing PNG_RGB_TO_GRAY_ERR & PNG_RGB_TO_GRAY_WARN - flags. - Changed remaining instances of PNG_ASSEMBLER_* to PNG_MMX_* - Added pngerror() when write_IHDR fails in deflateInit2(). - Added "const" to some array declarations. - Mention examples of libpng usage in the libpng*.txt and libpng.3 documents. - -Version 1.2.17rc1 [May 4, 2007] - No changes. - -Version 1.2.17rc2 [May 8, 2007] - Moved several PNG_HAVE_* macros out of PNG_INTERNAL because applications - calling set_unknown_chunk_location() need them. - Changed transformation flag from PNG_EXPAND_tRNS to PNG_EXPAND in - png_set_expand_gray_1_2_4_to_8(). - Added png_ptr->unknown_chunk to hold working unknown chunk data, so it - can be free'ed in case of error. Revised unknown chunk handling in - pngrutil.c and pngpread.c to use this structure. - -Version 1.2.17rc3 [May 8, 2007] - Revised symbol-handling in configure script. - -Version 1.2.17rc4 [May 10, 2007] - Revised unknown chunk handling to avoid storing unknown critical chunks. - -Version 1.0.25 [May 15, 2007] -Version 1.2.17 [May 15, 2007] - Added "png_ptr->num_trans=0" before error return in png_handle_tRNS, - to eliminate a vulnerability (CVE-2007-2445, CERT VU#684664) - -Version 1.0.26 [May 15, 2007] -Version 1.2.18 [May 15, 2007] - Reverted the libpng-1.2.17rc3 change to symbol-handling in configure script - -Version 1.2.19beta1 [May 18, 2007] - Changed "const static" to "static PNG_CONST" everywhere, mostly undoing - change of libpng-1.2.17beta2. Changed other "const" to "PNG_CONST" - Changed some handling of unused parameters, to avoid compiler warnings. - "if (unused == NULL) return;" becomes "unused = unused". - -Version 1.2.19beta2 [May 18, 2007] - Only use the valid bits of tRNS value in png_do_expand() (Brian Cartier) - -Version 1.2.19beta3 [May 19, 2007] - Add some "png_byte" typecasts in png_check_keyword() and write new_key - instead of key in zTXt chunk (Kevin Ryde). - -Version 1.2.19beta4 [May 21, 2007] - Add png_snprintf() function and use it in place of sprint() for improved - defense against buffer overflows. - -Version 1.2.19beta5 [May 21, 2007] - Fixed png_handle_tRNS() to only use the valid bits of tRNS value. - Changed handling of more unused parameters, to avoid compiler warnings. - Removed some PNG_CONST in pngwutil.c to avoid compiler warnings. - -Version 1.2.19beta6 [May 22, 2007] - Added some #ifdef PNG_MMX_CODE_SUPPORTED where needed in pngvcrd.c - Added a special "_MSC_VER" case that defines png_snprintf to _snprintf - -Version 1.2.19beta7 [May 22, 2007] - Squelched png_squelch_warnings() in pnggccrd.c and added - an #ifdef PNG_MMX_CODE_SUPPORTED block around the declarations that caused - the warnings that png_squelch_warnings was squelching. - -Version 1.2.19beta8 [May 22, 2007] - Removed __MMX__ from test in pngconf.h. - -Version 1.2.19beta9 [May 23, 2007] - Made png_squelch_warnings() available via PNG_SQUELCH_WARNINGS macro. - Revised png_squelch_warnings() so it might work. - Updated makefile.sgcc and makefile.solaris; added makefile.solaris-x86. - -Version 1.2.19beta10 [May 24, 2007] - Resquelched png_squelch_warnings(), use "__attribute__((used))" instead. - -Version 1.4.0beta1 [April 20, 2006] - Enabled iTXt support (changes png_struct, thus requires so-number change). - Cleaned up PNG_ASSEMBLER_CODE_SUPPORTED vs PNG_MMX_CODE_SUPPORTED - Eliminated PNG_1_0_X and PNG_1_2_X macros. - Removed deprecated functions png_read_init, png_write_init, png_info_init, - png_permit_empty_plte, png_set_gray_1_2_4_to_8, png_check_sig, and - removed the deprecated macro PNG_MAX_UINT. - Moved "PNG_INTERNAL" parts of png.h and pngconf.h into pngintrn.h - Removed many WIN32_WCE #ifdefs (Cosmin). - Reduced dependency on C-runtime library when on Windows (Simon-Pierre) - Replaced sprintf() with png_sprintf() (Simon-Pierre) - -Version 1.4.0beta2 [April 20, 2006] - Revised makefiles and configure to avoid making links to libpng.so.* - Moved some leftover MMX-related defines from pngconf.h to pngintrn.h - Updated scripts/pngos2.def, pngw32.def, and projects/wince/png32ce.def - -Version 1.4.0beta3 [May 10, 2006] - Updated scripts/pngw32.def to comment out MMX functions. - Added PNG_NO_GET_INT_32 and PNG_NO_SAVE_INT_32 macros. - Scripts/libpng.pc.in contained "configure" style version info and would - not work with makefiles. - Revised pngconf.h and added pngconf.h.in, so makefiles and configure can - pass defines to libpng and applications. - -Version 1.4.0beta4 [May 11, 2006] - Revised configure.ac, Makefile.am, and many of the makefiles to write - their defines in pngconf.h. - -Version 1.4.0beta5 [May 15, 2006] - Added a missing semicolon in Makefile.am and Makefile.in - Deleted extraneous square brackets from configure.ac - -Version 1.4.0beta6 [June 2, 2006] - Increased sprintf buffer from 50 to 52 chars in pngrutil.c to avoid - buffer overflow. - Changed sonum from 0 to 1. - Removed unused prototype for png_check_sig() from png.h - -Version 1.4.0beta7 [June 16, 2006] - Exported png_write_sig (Cosmin). - Optimized buffer in png_handle_cHRM() (Cosmin). - Set pHYs = 2835 x 2835 pixels per meter, and added - sCAL = 0.352778e-3 x 0.352778e-3 meters, in pngtest.png (Cosmin). - Added png_set_benign_errors(), png_benign_error(), png_chunk_benign_error(). - Added typedef for png_int_32 and png_uint_32 on 64-bit systems. - Added "(unsigned long)" typecast on png_uint_32 variables in printf lists. - -Version 1.4.0beta8 [June 22, 2006] - Added demonstration of user chunk support in pngtest.c, to support the - public sTER chunk and a private vpAg chunk. - -Version 1.4.0beta9 [July 3, 2006] - Removed ordinals from scripts/pngw32.def and removed png_info_int and - png_set_gray_1_2_4_to_8 entries. - Inline call of png_get_uint_32() in png_get_uint_31(). - Use png_get_uint_31() to get vpAg width and height in pngtest.c - Removed WINCE and Netware projects. - Removed standalone Y2KINFO file. - -Version 1.4.0beta10 [July 12, 2006] - Eliminated automatic copy of pngconf.h to pngconf.h.in from configure and - some makefiles, because it was not working reliably. Instead, distribute - pngconf.h.in along with pngconf.h and cause configure and some of the - makefiles to update pngconf.h from pngconf.h.in. - Added pngconf.h to DEPENDENCIES in Makefile.am - -Version 1.4.0beta11 [August 19, 2006] - Removed AC_FUNC_MALLOC from configure.ac. - Added a warning when writing iCCP profile with mismatched profile length. - Patched pnggccrd.c to assemble on x86_64 platforms. - Moved chunk header reading into a separate function png_read_chunk_header() - in pngrutil.c. The chunk header (len+sig) is now serialized in a single - operation (Cosmin). - Implemented support for I/O states. Added png_ptr member io_state, and - functions png_get_io_chunk_name() and png_get_io_state() in pngget.c - (Cosmin). - Added png_get_io_chunk_name and png_get_io_state to scripts/*.def (Cosmin). - Renamed scripts/pngw32.* to scripts/pngwin.* (Cosmin). - Removed the include directories and libraries from CFLAGS and LDFLAGS - in scripts/makefile.gcc (Cosmin). - Used png_save_uint_32() to set vpAg width and height in pngtest.c (Cosmin). - Cast to proper type when getting/setting vpAg units in pngtest.c (Cosmin). - Added pngintrn.h to the Visual C++ projects (Cosmin). - Removed scripts/list (Cosmin). - Updated copyright year in scripts/pngwin.def (Cosmin). - Removed PNG_TYPECAST_NULL and used standard NULL consistently (Cosmin). - Disallowed the user to redefine png_size_t, and enforced a consistent use - of png_size_t across libpng (Cosmin). - Changed the type of png_ptr->rowbytes, PNG_ROWBYTES() and friends - to png_size_t (Cosmin). - Removed png_convert_size() and replaced png_sizeof with sizeof (Cosmin). - Removed some unnecessary type casts (Cosmin). - Changed prototype of png_get_compression_buffer_size() and - png_set_compression_buffer_size() to work with png_size_t instead of - png_uint_32 (Cosmin). - Removed png_memcpy_check() and png_memset_check() (Cosmin). - Fixed a typo (png_byte --> png_bytep) in libpng.3 and libpng.txt (Cosmin). - Clarified that png_zalloc() does not clear the allocated memory, - and png_zalloc() and png_zfree() cannot be PNGAPI (Cosmin). - Renamed png_mem_size_t to png_alloc_size_t, fixed its definition in - pngconf.h, and used it in all memory allocation functions (Cosmin). - Renamed pngintrn.h to pngpriv.h, added a comment at the top of the file - mentioning that the symbols declared in that file are private, and - updated the scripts and the Visual C++ projects accordingly (Cosmin). - Removed circular references between pngconf.h and pngconf.h.in in - scripts/makefile.vc*win32 (Cosmin). - Removing trailing '.' from the warning and error messages (Cosmin). - Added pngdefs.h that is built by makefile or configure, instead of - pngconf.h.in (Glenn). - Detect and fix attempt to write wrong iCCP profile length. - -Version 1.4.0beta12 [October 19, 2006] - Changed "logical" to "bitwise" in the documentation. - Work around Intel-Mac compiler bug by setting PNG_NO_MMX_CODE in pngconf.h - Add a typecast to stifle compiler warning in pngrutil.c - -Version 1.4.0beta13 [November 10, 2006] - Fix potential buffer overflow in sPLT chunk handler. - Fix Makefile.am to not try to link to noexistent files. - -Version 1.4.0beta14 [November 15, 2006] - Check all exported functions for NULL png_ptr. - -Version 1.4.0beta15 [November 17, 2006] - Relocated two misplaced tests for NULL png_ptr. - Built Makefile.in with automake-1.9.6 instead of 1.9.2. - Build configure with autoconf-2.60 instead of 2.59 - Add "install: all" in Makefile.am so "configure; make install" will work. - -Version 1.4.0beta16 [November 17, 2006] - Added a typecast in png_zalloc(). - -Version 1.4.0beta17 [December 4, 2006] - Changed "new_key[79] = '\0';" to "(*new_key)[79] = '\0';" in pngwutil.c - Add "png_bytep" typecast to profile while calculating length in pngwutil.c - -Version 1.4.0beta18 [December 7, 2006] - Added scripts/CMakeLists.txt - -Version 1.4.0beta19 [May 16, 2007] - Revised scripts/CMakeLists.txt - Rebuilt configure and Makefile.in with newer tools. - Added conditional #undef jmpbuf in pngtest.c to undo #define in AIX headers. - Added scripts/makefile.nommx - -Version 1.4.0beta20 [July 9, 2008] - Moved several PNG_HAVE_* macros from pngpriv.h to png.h because applications - calling set_unknown_chunk_location() need them. - Moved several macro definitions from pngpriv.h to pngconf.h - Merge with changes to the 1.2.X branch, as of 1.2.30beta04. - Deleted all use of the MMX assembler code and Intel-licensed optimizations. - Revised makefile.mingw - -Version 1.4.0beta21 [July 21, 2008] - Moved local array "chunkdata" from pngrutil.c to the png_struct, so - it will be freed by png_read_destroy() in case of a read error (Kurt - Christensen). - -Version 1.4.0beta22 [July 21, 2008] - Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking. - -Version 1.4.0beta23 [July 22, 2008] - Change "chunkdata = NULL" to "png_ptr->chunkdata = NULL" several places in - png_decompress_chunk(). - -Version 1.4.0beta24 [July 25, 2008] - Change all remaining "chunkdata" to "png_ptr->chunkdata" in - png_decompress_chunk(), and remove "chunkdata" from parameter list. - Put a call to png_check_chunk_name() in png_read_chunk_header(). - Revised png_check_chunk_name() to reject a name with a lowercase 3rd byte. - Removed two calls to png_check_chunk_name() occuring later in the process. - Define PNG_NO_ERROR_NUMBERS by default in pngconf.h - -Version 1.4.0beta25 [July 30, 2008] - Added a call to png_check_chunk_name() in pngpread.c - Reverted png_check_chunk_name() to accept a name with a lowercase 3rd byte. - Added png_push_have_buffer() function to pngpread.c - Eliminated PNG_BIG_ENDIAN_SUPPORTED and associated png_get_* macros. - Made inline expansion of png_get_*() optional with PNG_USE_READ_MACROS. - Eliminated all PNG_USELESS_TESTS and PNG_CORRECT_PALETTE_SUPPORTED code. - Synced contrib directory and configure files with libpng-1.2.30beta06. - Eliminated no-longer-used pngdefs.h (but it's still built in the makefiles) - Relocated a misplaced "#endif /* PNG_NO_WRITE_FILTER */" in pngwutil.c - -Version 1.4.0beta26 [August 4, 2008] - Removed png_push_have_buffer() function in pngpread.c. It increased the - compiled library size slightly. - Changed "-Wall" to "-W -Wall" in the CFLAGS in all makefiles (Cosmin Truta) - Declared png_ptr "volatile" in pngread.c and pngwrite.c to avoid warnings. - Updated contrib/visupng/cexcept.h to version 2.0.1 - Added PNG_LITERAL_CHARACTER macros for #, [, and ]. - -Version 1.4.0beta27 [August 5, 2008] - Revised usage of PNG_LITERAL_SHARP in pngerror.c. - Moved newline character from individual png_debug messages into the - png_debug macros. - Allow user to #define their own png_debug, png_debug1, and png_debug2. - -Version 1.4.0beta28 [August 5, 2008] - Revised usage of PNG_LITERAL_SHARP in pngerror.c. - Added PNG_STRING_NEWLINE macro - -Version 1.4.0beta29 [August 9, 2008] - Revised usage of PNG_STRING_NEWLINE to work on non-ISO compilers. - Added PNG_STRING_COPYRIGHT macro. - Added non-ISO versions of png_debug macros. - -Version 1.4.0beta30 [August 14, 2008] - Added premultiplied alpha feature (Volker Wiendl). - -Version 1.4.0beta31 [August 18, 2008] - Moved png_set_premultiply_alpha from pngtrans.c to pngrtran.c - Removed extra crc check at the end of png_handle_cHRM(). Bug introduced - in libpng-1.4.0beta20. - -Version 1.4.0beta32 [August 19, 2008] - Added PNG_WRITE_FLUSH_SUPPORTED block around new png_flush() call. - Revised PNG_NO_STDIO version of png_write_flush() - -Version 1.4.0beta33 [August 20, 2008] - Added png_get|set_chunk_cache_max() to limit the total number of sPLT, - text, and unknown chunks that can be stored. - -Version 1.4.0beta34 [September 6, 2008] - Shortened tIME_string to 29 bytes in pngtest.c - Fixed off-by-one error introduced in png_push_read_zTXt() function in - libpng-1.2.30beta04/pngpread.c (Harald van Dijk) - -Version 1.4.0beta35 [October 6, 2008] - Changed "trans_values" to "trans_color". - Changed so-number from 0 to 14. Some OS do not like 0. - Revised makefile.darwin to fix shared library numbering. - Change png_set_gray_1_2_4_to_8() to png_set_expand_gray_1_2_4_to_8() - in example.c (debian bug report) - -Version 1.4.0beta36 [October 25, 2008] - Sync with tEXt vulnerability fix in libpng-1.2.33rc02. - -Version 1.4.0beta37 [November 13, 2008] - Added png_check_cHRM in png.c and moved checking from pngget.c, pngrutil.c, - and pngwrite.c - -Version 1.4.0beta38 [November 22, 2008] - Added check for zero-area RGB cHRM triangle in png_check_cHRM() and - png_check_cHRM_fixed(). - -Version 1.4.0beta39 [November 23, 2008] - Revised png_warning() to write its message on standard output by default - when warning_fn is NULL. - -Version 1.4.0beta40 [November 24, 2008] - Eliminated png_check_cHRM(). Instead, always use png_check_cHRM_fixed(). - In png_check_cHRM_fixed(), ensure white_y is > 0, and removed redundant - check for all-zero coordinates that is detected by the triangle check. - -Version 1.4.0beta41 [November 26, 2008] - Fixed string vs pointer-to-string error in png_check_keyword(). - Rearranged test expressions in png_check_cHRM_fixed() to avoid internal - overflows. - Added PNG_NO_CHECK_cHRM conditional. - -Version 1.4.0beta42, 43 [December 1, 2008] - Merge png_debug with version 1.2.34beta04. - -Version 1.4.0beta44 [December 6, 2008] - Removed redundant check for key==NULL before calling png_check_keyword() - to ensure that new_key gets initialized and removed extra warning - (Merge with version 1.2.34beta05 -- Arvan Pritchard). - -Version 1.4.0beta45 [December 9, 2008] - In png_write_png(), respect the placement of the filler bytes in an earlier - call to png_set_filler() (Jim Barry). - -Version 1.4.0beta46 [December 10, 2008] - Undid previous change and added PNG_TRANSFORM_STRIP_FILLER_BEFORE and - PNG_TRANSFORM_STRIP_FILLER_AFTER conditionals and deprecated - PNG_TRANSFORM_STRIP_FILLER (Jim Barry). - -Version 1.4.0beta47 [December 15, 2008] - Support for dithering was disabled by default, because it has never - been well tested and doesn't work very well. The code has not - been removed, however, and can be enabled by building libpng with - PNG_READ_DITHER_SUPPORTED defined. - -Version 1.4.0beta48 [February 14, 2009] - Added new exported function png_calloc(). - Combined several instances of png_malloc(); png_memset() into png_calloc(). - Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 - but was never defined. - -Version 1.4.0beta49 [February 28, 2009] - Added png_fileno() macro to pngconf.h, used in pngwio.c - Corrected order of #ifdef's in png_debug definition in png.h - Fixed bug introduced in libpng-1.4.0beta48 with the memset arguments - for pcal_params. - Fixed order of #ifdef directives in the png_debug defines in png.h - (bug introduced in libpng-1.2.34/1.4.0beta29). - Revised comments in png_set_read_fn() and png_set_write_fn(). - -Version 1.4.0beta50 [March 18, 2009] - Use png_calloc() instead of png_malloc() to allocate big_row_buf when - reading an interlaced file, to avoid a possible UMR. - Undid revision of PNG_NO_STDIO version of png_write_flush(). Users - having trouble with fflush() can build with PNG_NO_WRITE_FLUSH defined - or supply their own flush_fn() replacement. - Revised libpng*.txt and png.h documentation about use of png_write_flush() - and png_set_write_fn(). - Removed fflush() from pngtest.c. - Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h - -Version 1.4.0beta51 [March 21, 2009] - Removed new png_fileno() macro from pngconf.h . - -Version 1.4.0beta52 [March 27, 2009] - Relocated png_do_chop() ahead of building gamma tables in pngrtran.c - This avoids building 16-bit gamma tables unnecessarily. - Removed fflush() from pngtest.c. - Added "#define PNG_NO_WRITE_FLUSH" to contrib/pngminim/encoder/pngusr.h - Added a section on differences between 1.0.x and 1.2.x to libpng.3/libpng.txt - -Version 1.4.0beta53 [April 1, 2009] - Removed some remaining MMX macros from pngpriv.h - Fixed potential memory leak of "new_name" in png_write_iCCP() (Ralph Giles) - -Version 1.4.0beta54 [April 13, 2009] - Added "ifndef PNG_SKIP_SETJMP_CHECK" block in pngconf.h to allow - application code writers to bypass the check for multiple inclusion - of setjmp.h when they know that it is safe to ignore the situation. - Eliminated internal use of setjmp() in pngread.c and pngwrite.c - Reordered ancillary chunks in pngtest.png to be the same as what - pngtest now produces, and made some cosmetic changes to pngtest output. - Eliminated deprecated png_read_init_3() and png_write_init_3() functions. - -Version 1.4.0beta55 [April 15, 2009] - Simplified error handling in pngread.c and pngwrite.c by putting - the new png_read_cleanup() and png_write_cleanup() functions inline. - -Version 1.4.0beta56 [April 25, 2009] - Renamed "user_chunk_data" to "my_user_chunk_data" in pngtest.c to suppress - "shadowed declaration" warning from gcc-4.3.3. - Renamed "gamma" to "png_gamma" in pngset.c to avoid "shadowed declaration" - warning about a global "gamma" variable in math.h on some platforms. - -Version 1.4.0beta57 [May 2, 2009] - Removed prototype for png_freeptr() that was added in libpng-1.4.0beta24 - but was never defined (again). - Rebuilt configure scripts with autoconf-2.63 instead of 2.62 - Removed pngprefs.h and MMX from makefiles - -Version 1.4.0beta58 [May 14, 2009] - Changed pngw32.def to pngwin.def in makefile.mingw (typo was introduced - in beta57). - Clarified usage of sig_bit versus sig_bit_p in example.c (Vincent Torri) - -Version 1.4.0beta59 [May 15, 2009] - Reformated sources in libpng style (3-space intentation, comment format) - Fixed typo in libpng docs (PNG_FILTER_AVE should be PNG_FILTER_AVG) - Added sections about the git repository and our coding style to the - documentation - Relocated misplaced #endif in pngwrite.c, sCAL chunk handler. - -Version 1.4.0beta60 [May 19, 2009] - Conditionally compile png_read_finish_row() which is not used by - progressive readers. - Added contrib/pngminim/preader to demonstrate building minimal progressive - decoder, based on contrib/gregbook with embedded libpng and zlib. - -Version 1.4.0beta61 [May 20, 2009] - In contrib/pngminim/*, renamed "makefile.std" to "makefile", since there - is only one makefile in those directories, and revised the README files - accordingly. - More reformatting of comments, mostly to capitalize sentences. - -Version 1.4.0beta62 [June 2, 2009] - Added "#define PNG_NO_WRITE_SWAP" to contrib/pngminim/encoder/pngusr.h - and "define PNG_NO_READ_SWAP" to decoder/pngusr.h and preader/pngusr.h - Reformatted several remaining "else statement" into two lines. - Added a section to the libpng documentation about using png_get_io_ptr() - in configure scripts to detect the presence of libpng. - -Version 1.4.0beta63 [June 15, 2009] - Revised libpng*.txt and libpng.3 to mention calling png_set_IHDR() - multiple times and to specify the sample order in the tRNS chunk, - because the ISO PNG specification has a typo in the tRNS table. - Changed several PNG_UNKNOWN_CHUNK_SUPPORTED to - PNG_HANDLE_AS_UNKNOWN_SUPPORTED, to make the png_set_keep mechanism - available for ignoring known chunks even when not saving unknown chunks. - Adopted preference for consistent use of "#ifdef" and "#ifndef" versus - "#if defined()" and "if !defined()" where possible. - -Version 1.4.0beta64 [June 24, 2009] - Eliminated PNG_LEGACY_SUPPORTED code. - Moved the various unknown chunk macro definitions outside of the - PNG_READ|WRITE_ANCILLARY_CHUNK_SUPPORTED blocks. - -Version 1.4.0beta65 [June 26, 2009] - Added a reference to the libpng license in each file. - -Version 1.4.0beta66 [June 27, 2009] - Refer to the libpng license instead of the libpng license in each file. - -Version 1.4.0beta67 [July 6, 2009] - Relocated INVERT_ALPHA within png_read_png() and png_write_png(). - Added high-level API transform PNG_TRANSFORM_GRAY_TO_RGB. - Added an "xcode" project to the projects directory (Alam Arias). - -Version 1.4.0beta68 [July 19, 2009] - Avoid some tests in filter selection in pngwutil.c - -Version 1.4.0beta69 [July 25, 2009] - Simplified the new filter-selection test. This runs faster in the - common "PNG_ALL_FILTERS" and PNG_FILTER_NONE cases. - Removed extraneous declaration from the new call to png_read_gray_to_rgb() - (bug introduced in libpng-1.4.0beta67). - Fixed up xcode project (Alam Arias) - Added a prototype for png_64bit_product() in png.c - -Version 1.4.0beta70 [July 27, 2009] - Avoid a possible NULL dereference in debug build, in png_set_text_2(). - (bug introduced in libpng-0.95, discovered by Evan Rouault) - -Version 1.4.0beta71 [July 29, 2009] - Rebuilt configure scripts with autoconf-2.64. - -Version 1.4.0beta72 [August 1, 2009] - Replaced *.tar.lzma with *.tar.xz in distribution. Get the xz codec - from . - -Version 1.4.0beta73 [August 1, 2009] - Reject attempt to write iCCP chunk with negative embedded profile length - (JD Chen) (CVE-2009-5063). - -Version 1.4.0beta74 [August 8, 2009] - Changed png_ptr and info_ptr member "trans" to "trans_alpha". - -Version 1.4.0beta75 [August 21, 2009] - Removed an extra png_debug() recently added to png_write_find_filter(). - Fixed incorrect #ifdef in pngset.c regarding unknown chunk support. - -Version 1.4.0beta76 [August 22, 2009] - Moved an incorrectly located test in png_read_row() in pngread.c - -Version 1.4.0beta77 [August 27, 2009] - Removed lpXYZ.tar.bz2 (with CRLF), KNOWNBUG, libpng-x.y.z-KNOWNBUG.txt, - and the "noconfig" files from the distribution. - Moved CMakeLists.txt from scripts into the main libpng directory. - Various bugfixes and improvements to CMakeLists.txt (Philip Lowman) - -Version 1.4.0beta78 [August 31, 2009] - Converted all PNG_NO_* tests to PNG_*_SUPPORTED everywhere except pngconf.h - Eliminated PNG_NO_FREE_ME and PNG_FREE_ME_SUPPORTED macros. - Use png_malloc plus a loop instead of png_calloc() to initialize - row_pointers in png_read_png(). - -Version 1.4.0beta79 [September 1, 2009] - Eliminated PNG_GLOBAL_ARRAYS and PNG_LOCAL_ARRAYS; always use local arrays. - Eliminated PNG_CALLOC_SUPPORTED macro and always provide png_calloc(). - -Version 1.4.0beta80 [September 17, 2009] - Removed scripts/libpng.icc - Changed typecast of filler from png_byte to png_uint_16 in png_set_filler(). - (Dennis Gustafsson) - Fixed typo introduced in beta78 in pngtest.c ("#if def " should be "#ifdef ") - -Version 1.4.0beta81 [September 23, 2009] - Eliminated unused PNG_FLAG_FREE_* defines from pngpriv.h - Expanded TAB characters in pngrtran.c - Removed PNG_CONST from all "PNG_CONST PNG_CHNK" declarations to avoid - compiler complaints about doubly declaring things "const". - Changed all "#if [!]defined(X)" to "if[n]def X" where possible. - Eliminated unused png_ptr->row_buf_size - -Version 1.4.0beta82 [September 25, 2009] - Moved redundant IHDR checking into new png_check_IHDR() in png.c - and report all errors found in the IHDR data. - Eliminated useless call to png_check_cHRM() from pngset.c - -Version 1.4.0beta83 [September 25, 2009] - Revised png_check_IHDR() to eliminate bogus complaint about filter_type. - -Version 1.4.0beta84 [September 30, 2009] - Fixed some inconsistent indentation in pngconf.h - Revised png_check_IHDR() to add a test for width variable less than 32-bit. - -Version 1.4.0beta85 [October 1, 2009] - Revised png_check_IHDR() again, to check info_ptr members instead of - the contents of the returned parameters. - -Version 1.4.0beta86 [October 9, 2009] - Updated the "xcode" project (Alam Arias). - Eliminated a shadowed declaration of "pp" in png_handle_sPLT(). - -Version 1.4.0rc01 [October 19, 2009] - Trivial cosmetic changes. - -Version 1.4.0beta87 [October 30, 2009] - Moved version 1.4.0 back into beta. - -Version 1.4.0beta88 [October 30, 2009] - Revised libpng*.txt section about differences between 1.2.x and 1.4.0 - because most of the new features have now been ported back to 1.2.41 - -Version 1.4.0beta89 [November 1, 2009] - More bugfixes and improvements to CMakeLists.txt (Philip Lowman) - Removed a harmless extra png_set_invert_alpha() from pngwrite.c - Apply png_user_chunk_cache_max within png_decompress_chunk(). - Merged libpng-1.2.41.txt with libpng-1.4.0.txt where appropriate. - -Version 1.4.0beta90 [November 2, 2009] - Removed all remaining WIN32_WCE #ifdefs except those involving the - time.h "tm" structure - -Version 1.4.0beta91 [November 3, 2009] - Updated scripts/pngw32.def and projects/wince/png32ce.def - Copied projects/wince/png32ce.def to the scripts directory. - Added scripts/makefile.wce - Patched ltmain.sh for wince support. - Added PNG_CONVERT_tIME_SUPPORTED macro. - -Version 1.4.0beta92 [November 4, 2009] - Make inclusion of time.h in pngconf.h depend on PNG_CONVERT_tIME_SUPPORTED - Make #define PNG_CONVERT_tIME_SUPPORTED depend on PNG_WRITE_tIME_SUPPORTED - Revised libpng*.txt to describe differences from 1.2.40 to 1.4.0 (instead - of differences from 1.2.41 to 1.4.0) - -Version 1.4.0beta93 [November 7, 2009] - Added PNG_DEPSTRUCT, PNG_DEPRECATED, PNG_USE_RESULT, PNG_NORETURN, and - PNG_ALLOCATED macros to detect deprecated direct access to the - png_struct or info_struct members and other deprecated usage in - applications (John Bowler). - Updated scripts/makefile* to add "-DPNG_CONFIGURE_LIBPNG" to CFLAGS, - to prevent warnings about direct access to png structs by libpng - functions while building libpng. They need to be tested, especially - those using compilers other than gcc. - Updated projects/visualc6 and visualc71 with "/d PNG_CONFIGURE_LIBPNG". - They should work but still need to be updated to remove - references to pnggccrd.c or pngvcrd.c and ASM building. - Added README.txt to the beos, cbuilder5, netware, and xcode projects warning - that they need to be updated, to remove references to pnggccrd.c and - pngvcrd.c and to depend on pngpriv.h - Removed three direct references to read_info_ptr members in pngtest.c - that were detected by the new PNG_DEPSTRUCT macro. - Moved the png_debug macro definitions and the png_read_destroy(), - png_write_destroy() and png_far_to_near() prototypes from png.h - to pngpriv.h (John Bowler) - Moved the synopsis lines for png_read_destroy(), png_write_destroy() - png_debug(), png_debug1(), and png_debug2() from libpng.3 to libpngpf.3. - -Version 1.4.0beta94 [November 9, 2009] - Removed the obsolete, unused pnggccrd.c and pngvcrd.c files. - Updated CMakeLists.txt to add "-DPNG_CONFIGURE_LIBPNG" to the definitions. - Removed dependency of pngtest.o on pngpriv.h in the makefiles. - Only #define PNG_DEPSTRUCT, etc. in pngconf.h if not already defined. - -Version 1.4.0beta95 [November 10, 2009] - Changed png_check_sig() to !png_sig_cmp() in contrib programs. - Added -DPNG_CONFIGURE_LIBPNG to contrib/pngminm/*/makefile - Changed png_check_sig() to !png_sig_cmp() in contrib programs. - Corrected the png_get_IHDR() call in contrib/gregbook/readpng2.c - Changed pngminim/*/gather.sh to stop trying to remove pnggccrd.c and pngvcrd.c - Added dependency on pngpriv.h in contrib/pngminim/*/makefile - -Version 1.4.0beta96 [November 12, 2009] - Renamed scripts/makefile.wce to scripts/makefile.cegcc - Revised Makefile.am to use libpng.sys while building libpng.so - so that only PNG_EXPORT functions are exported. - Removed the deprecated png_check_sig() function/macro. - Removed recently removed function names from scripts/*.def - Revised pngtest.png to put chunks in the same order written by pngtest - (evidently the same change made in libpng-1.0beta54 was lost). - Added PNG_PRIVATE macro definition in pngconf.h for possible future use. - -Version 1.4.0beta97 [November 13, 2009] - Restored pngtest.png to the libpng-1.4.0beta7 version. - Removed projects/beos and netware.txt; no one seems to be supporting them. - Revised Makefile.in - -Version 1.4.0beta98 [November 13, 2009] - Added the "xcode" project to zip distributions, - Fixed a typo in scripts/pngwin.def introduced in beta97. - -Version 1.4.0beta99 [November 14, 2009] - Moved libpng-config.in and libpng.pc-configure.in out of the scripts - directory, to libpng-config.in and libpng-pc.in, respectively, and - modified Makefile.am and configure.ac accordingly. Now "configure" - needs nothing from the "scripts" directory. - Avoid redefining PNG_CONST in pngconf.h - -Version 1.4.0beta100 [November 14, 2009] - Removed ASM builds from projects/visualc6 and projects/visualc71 - Removed scripts/makefile.nommx and makefile.vcawin32 - Revised CMakeLists.txt to account for new location of libpng-config.in - and libpng-pc.in - Updated INSTALL to reflect removal and relocation of files. - -Version 1.4.0beta101 [November 14, 2009] - Restored the binary files (*.jpg, *.png, some project files) that were - accidentally deleted from the zip and 7z distributions when the xcode - project was added. - -Version 1.4.0beta102 [November 18, 2009] - Added libpng-config.in and libpng-pc.in to the zip and 7z distributions. - Fixed a typo in projects/visualc6/pngtest.dsp, introduced in beta100. - Moved descriptions of makefiles and other scripts out of INSTALL into - scripts/README.txt - Updated the copyright year in scripts/pngwin.rc from 2006 to 2009. - -Version 1.4.0beta103 [November 21, 2009] - Removed obsolete comments about ASM from projects/visualc71/README_zlib.txt - Align row_buf on 16-byte boundary in memory. - Restored the PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED guard around the call - to png_flush() after png_write_IEND(). See 1.4.0beta32, 1.4.0beta50 - changes above and 1.2.30, 1.2.30rc01 and rc03 in 1.2.41 CHANGES. Someone - needs this feature. - Make the 'png_jmpbuf' macro expand to a call that records the correct - longjmp function as well as returning a pointer to the setjmp - jmp_buf buffer, and marked direct access to jmpbuf 'deprecated'. - (John Bowler) - -Version 1.4.0beta104 [November 22, 2009] - Removed png_longjmp_ptr from scripts/*.def and libpng.3 - Rebuilt configure scripts with autoconf-2.65 - -Version 1.4.0beta105 [November 25, 2009] - Use fast integer PNG_DIVIDE_BY_255() or PNG_DIVIDE_BY_65535() - to accomplish alpha premultiplication when - PNG_READ_COMPOSITE_NODIV_SUPPORTED is defined. - Changed "/255" to "/255.0" in background calculations to make it clear - that the 255 is used as a double. - -Version 1.4.0beta106 [November 27, 2009] - Removed premultiplied alpha feature. - -Version 1.4.0beta107 [December 4, 2009] - Updated README - Added "#define PNG_NO_PEDANTIC_WARNINGS" in the libpng source files. - Removed "-DPNG_CONFIGURE_LIBPNG" from the makefiles and projects. - Revised scripts/makefile.netbsd, makefile.openbsd, and makefile.sco - to put png.h and pngconf.h in $prefix/include, like the other scripts, - instead of in $prefix/include/libpng. Also revised makefile.sco - to put them in $prefix/include/libpng15 instead of in - $prefix/include/libpng/libpng15. - -Version 1.4.0beta108 [December 11, 2009] - Removed leftover "-DPNG_CONFIGURE_LIBPNG" from contrib/pngminim/*/makefile - Relocated png_do_chop() to its original position in pngrtran.c; the - change in version 1.2.41beta08 caused transparency to be handled wrong - in some 16-bit datastreams (Yusaku Sugai). - -Version 1.4.0beta109 [December 13, 2009] - Added "bit_depth" parameter to the private png_build_gamma_table() function. - Pass bit_depth=8 to png_build_gamma_table() when bit_depth is 16 but the - PNG_16_TO_8 transform has been set, to avoid unnecessary build of 16-bit - tables. - -Version 1.4.0rc02 [December 20, 2009] - Declared png_cleanup_needed "volatile" in pngread.c and pngwrite.c - -Version 1.4.0rc03 [December 22, 2009] - Renamed libpng-pc.in back to libpng.pc.in and revised CMakeLists.txt - (revising the change in 1.4.0beta99) - -Version 1.4.0rc04 [December 25, 2009] - Swapped PNG_UNKNOWN_CHUNKS_SUPPORTED and PNG_HANDLE_AS_UNKNOWN_SUPPORTED - in pngset.c to be consistent with other changes in version 1.2.38. - -Version 1.4.0rc05 [December 25, 2009] - Changed "libpng-pc.in" to "libpng.pc.in" in configure.ac, configure, and - Makefile.in to be consistent with changes in libpng-1.4.0rc03 - -Version 1.4.0rc06 [December 29, 2009] - Reverted the gamma_table changes from libpng-1.4.0beta109. - Fixed some indentation errors. - -Version 1.4.0rc07 [January 1, 2010] - Revised libpng*.txt and libpng.3 about 1.2.x->1.4.x differences. - Use png_calloc() instead of png_malloc(); png_memset() in pngrutil.c - Update copyright year to 2010. - -Version 1.4.0rc08 [January 2, 2010] - Avoid deprecated references to png_ptr-io_ptr and png_ptr->error_ptr - in pngtest.c - -Version 1.4.0 [January 3, 2010] - No changes. - -Version 1.4.1beta01 [January 8, 2010] - Updated CMakeLists.txt for consistent indentation and to avoid an - unclosed if-statement warning (Philip Lowman). - Revised Makefile.am and Makefile.in to remove references to Y2KINFO, - KNOWNBUG, and libpng.la (Robert Schwebel). - Revised the makefiles to install the same files and symbolic - links as configure, except for libpng.la and libpng14.la. - Make png_set|get_compression_buffer_size() available even when - PNG_WRITE_SUPPORTED is not enabled. - Revised Makefile.am and Makefile.in to simplify their maintenance. - Revised scripts/makefile.linux to install a link to libpng14.so.14.1 - -Version 1.4.1beta02 [January 9, 2010] - Revised the rest of the makefiles to install a link to libpng14.so.14.1 - -Version 1.4.1beta03 [January 10, 2010] - Removed png_set_premultiply_alpha() from scripts/*.def - -Version 1.4.1rc01 [January 16, 2010] - No changes. - -Version 1.4.1beta04 [January 23, 2010] - Revised png_decompress_chunk() to improve speed and memory usage when - decoding large chunks. - Added png_set|get_chunk_malloc_max() functions. - -Version 1.4.1beta05 [January 26, 2010] - Relocated "int k" declaration in pngtest.c to minimize its scope. - -Version 1.4.1beta06 [January 28, 2010] - Revised png_decompress_chunk() to use a two-pass method suggested by - John Bowler. - -Version 1.4.1beta07 [February 6, 2010] - Folded some long lines in the source files. - Added defineable PNG_USER_CHUNK_CACHE_MAX, PNG_USER_CHUNK_MALLOC_MAX, - and a PNG_USER_LIMITS_SUPPORTED flag. - Eliminated use of png_ptr->irowbytes and reused the slot in png_ptr as - png_ptr->png_user_chunk_malloc_max. - Revised png_push_save_buffer() to do fewer but larger png_malloc() calls. - -Version 1.4.1beta08 [February 6, 2010] - Minor cleanup and updating of dates and copyright year. - -Version 1.5.0beta01 [February 7, 2010] - Moved declaration of png_struct into private pngstruct.h and png_info - into pnginfo.h - -Version 1.4.1beta09 and 1.5.0beta02 [February 7, 2010] - Reverted to original png_push_save_buffer() code. - -Version 1.4.1beta10 and 1.5.0beta03 [February 8, 2010] - Return allocated "old_buffer" in png_push_save_buffer() before - calling png_error(), to avoid a potential memory leak. - Updated configure script to use SO number 15. - -Version 1.5.0beta04 [February 9, 2010] - Removed malformed "incomplete struct declaration" of png_info from png.h - -Version 1.5.0beta05 [February 12, 2010] - Removed PNG_DEPSTRUCT markup in pngstruct.h and pnginfo.h, and undid the - linewrapping that it entailed. - Revised comments in pngstruct.h and pnginfo.h and added pointers to - the libpng license. - Changed PNG_INTERNAL to PNG_EXPOSE_INTERNAL_STRUCTURES - Removed the cbuilder5 project, which has not been updated to 1.4.0. - -Version 1.4.1beta12 and 1.5.0beta06 [February 14, 2010] - Fixed type declaration of png_get_chunk_malloc_max() in pngget.c (Daisuke - Nishikawa) - -Version 1.5.0beta07 [omitted] - -Version 1.5.0beta08 [February 19, 2010] - Changed #ifdef PNG_NO_STDIO_SUPPORTED to #ifdef PNG_NO_CONSOLE_IO_SUPPORTED - wherever png_snprintf() is used to construct error and warning messages. - Noted in scripts/makefile.mingw that it expects to be run under MSYS. - Removed obsolete unused MMX-querying support from contrib/gregbook - Added exported png_longjmp() function. - Removed the AIX redefinition of jmpbuf in png.h - Added -D_ALLSOURCE in configure.ac, makefile.aix, and CMakeLists.txt - when building on AIX. - -Version 1.5.0beta09 [February 19, 2010] - Removed -D_ALLSOURCE from configure.ac, makefile.aix, and CMakeLists.txt. - Changed the name of png_ptr->jmpbuf to png_ptr->png_jmpbuf in pngstruct.h - -Version 1.5.0beta10 [February 25, 2010] - Removed unused gzio.c from contrib/pngminim gather and makefile scripts - Removed replacement error handlers from contrib/gregbook. Because of - the new png_longjmp() function they are no longer needed. - -Version 1.5.0beta11 [March 6, 2010] - Removed checking for already-included setjmp.h from pngconf.h - Fixed inconsistent indentations and made numerous cosmetic changes. - Revised the "SEE ALSO" style of libpng.3, libpngpf.3, and png.5 - -Version 1.5.0beta12 [March 9, 2010] - Moved "#include png.h" inside pngpriv.h and removed "#include png.h" from - the source files, along with "#define PNG_EXPOSE_INTERNAL_STRUCTURES" - and "#define PNG_NO_PEDANTIC_WARNINGS" (John Bowler). - Created new pngdebug.h and moved debug definitions there. - -Version 1.5.0beta13 [March 10, 2010] - Protect pngstruct.h, pnginfo.h, and pngdebug.h from being included twice. - Revise the "#ifdef" blocks in png_inflate() so it will compile when neither - PNG_USER_CHUNK_MALLOC_MAX nor PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED - is defined. - Removed unused png_measure_compressed_chunk() from pngpriv.h and libpngpf.3 - Moved the 'config.h' support from pngconf.h to pngpriv.h - Removed PNGAPI from the png_longjmp_ptr typedef. - Eliminated dependence of pngtest.c on the private pngdebug.h file. - Make all png_debug macros into *unterminated* statements or - expressions (i.e. a trailing ';' must always be added) and correct - the format statements in various png_debug messages. - -Version 1.5.0beta14 [March 14, 2010] - Removed direct access to png_ptr->io_ptr from the Windows code in pngtest.c - Revised Makefile.am to account for recent additions and replacements. - Corrected CE and OS/2 DEF files (scripts/png*def) for symbols removed and - added ordinal numbers to the Windows DEF file and corrected the duplicated - ordinal numbers on CE symbols that are commented out. - Added back in export symbols that can be present in the Windows build but - are disabled by default. - PNG_EXPORT changed to include an 'ordinal' field for DEF file generation. - PNG_CALLBACK added to make callback definitions uniform. PNGAPI split - into PNGCAPI (base C form), PNGAPI (exports) and PNGCBAPI (callbacks), - and appropriate changes made to all files. Cygwin builds re-hinged to - allow procedure call standard changes and to remove the need for the DEF - file (fixes build on Cygwin). - Enabled 'attribute' warnings that are relevant to library APIs and callbacks. - Changed rules for generation of the various symbol files and added a new - rule for a DEF file (which is also added to the distribution). - Updated the symbol file generation to stop it adding spurious spaces - to EOL (coming from preprocessor macro expansion). Added a facility - to join tokens in the output and rewrite *.dfn to use this. - Eliminated scripts/*.def in favor of libpng.def; updated projects/visualc71 - and removed scripts/makefile.cygwin. - Made PNG_BUILD_DLL safe: it can be set whenever a DLL is being built. - Removed the include of sys/types.h - apparently unnecessary now on the - platforms on which it happened (all but Mac OS and RISC OS). - Moved the Mac OS test into pngpriv.h (the only place it is used.) - -Version 1.5.0beta15 [March 17, 2010] - Added symbols.chk target to Makefile.am to validate the symbols in png.h - against the new DEF file scripts/symbols.def. - Changed the default DEF file back to pngwin.def. - Removed makefile.mingw. - Eliminated PNG_NO_EXTERN and PNG_ALL_EXTERN - -Version 1.5.0beta16 [April 1, 2010] - Make png_text_struct independent of PNG_iTXt_SUPPORTED, so that - fields are initialized in all configurations. The READ/WRITE - macros (PNG_(READ|WRITE)_iTXt_SUPPORTED) still function as - before to disable code to actually read or write iTXt chunks - and iTXt_SUPPORTED can be used to detect presence of either - read or write support (but it is probably better to check for - the one actually required - read or write.) - Combined multiple png_warning() calls for a single error. - Restored the macro definition of png_check_sig(). - -Version 1.5.0beta17 [April 17, 2010] - Added some "(long)" typecasts to printf calls in png_handle_cHRM(). - Documented the fact that png_set_dither() was disabled since libpng-1.4.0. - Reenabled png_set_dither() but renamed it to png_set_quantize() to reflect - more accurately what it actually does. At the same time, renamed - the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros to - PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS. - Added some "(long)" typecasts to printf calls in png_handle_cHRM(). - Freeze build-time only configuration in the build. - In all prior versions of libpng most configuration options - controlled by compiler #defines had to be repeated by the - application code that used libpng. This patch changes this - so that compilation options that can only be changed at build - time are frozen in the build. Options that are compiler - dependent (and those that are system dependent) are evaluated - each time - pngconf.h holds these. Options that can be changed - per-file in the application are in png.h. Frozen options are - in the new installed header file pnglibconf.h (John Bowler) - Removed the xcode project because it has not been updated to work - with libpng-1.5.0. - Removed the ability to include optional pngusr.h - -Version 1.5.0beta18 [April 17, 2010] - Restored the ability to include optional pngusr.h - Moved replacements for png_error() and png_warning() from the - contrib/pngminim project to pngerror.c, for use when warnings or - errors are disabled via PNG_NO_WARN or PNG_NO_ERROR_TEXT, to avoid - storing unneeded error/warning text. - Updated contrib/pngminim project to work with the new pnglibconf.h - Added some PNG_NO_* defines to contrib/pngminim/*/pngusr.h to save space. - -Version 1.5.0beta19 [April 24, 2010] - Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the functions - to read and write ints to be disabled independently of PNG_USE_READ_MACROS, - which allows libpng to be built with the functions even though the default - is to use the macros - this allows applications to choose at app build - time whether or not to use macros (previously impossible because the - functions weren't in the default build.) - Changed Windows calling convention back to __cdecl for API functions. - For Windows/x86 platforms only: - __stdcall is no longer needed for Visual Basic, so libpng-1.5.0 uses - __cdecl throughout (both API functions and callbacks) on Windows/x86 - platforms. - Replaced visualc6 and visualc71 projects with new vstudio project - Relaxed the overly-restrictive permissions of some files. - -Version 1.5.0beta20 [April 24, 2010] - Relaxed more overly-restrictive permissions of some files. - -Version 1.5.0beta21 [April 27, 2010] - Removed some unwanted binary bytes and changed CRLF to NEWLINE in the new - vstudio project files, and some trivial editing of some files in the - scripts directory. - Set PNG_NO_READ_BGR, PNG_NO_IO_STATE, and PNG_NO_TIME_RFC1123 in - contrib/pngminim/decoder/pngusr.h to make a smaller decoder application. - -Version 1.5.0beta22 [April 28, 2010] - Fixed dependencies of GET_INT_32 - it does not require READ_INT_FUNCTIONS - because it has a macro equivalent. - Improved the options.awk script; added an "everything off" option. - Revised contrib/pngminim to use the "everything off" option in pngusr.dfa. - -Version 1.5.0beta23 [April 29, 2010] - Corrected PNG_REMOVED macro to take five arguments. - The macro was documented with two arguments (name,ordinal), however - the symbol checking .dfn files assumed five arguments. The five - argument form seems more useful so it is changed to that. - Corrected PNG_UNKNOWN_CHUNKS_SUPPORTED to PNG_HANDLE_AS_UNKNOWN_SUPPORTED - in gregbook/readpng2.c - Corrected protection of png_get_user_transform_ptr. The API declaration in - png.h is removed if both READ and WRITE USER_TRANSFORM are turned off - but was left defined in pngtrans.c - Added logunsupported=1 to cause pnglibconf.h to document disabled options. - This makes the installed pnglibconf.h more readable but causes no - other change. The intention is that users of libpng will find it - easier to understand if an API they need is missing. - Include png_reset_zstream() in png.c only when PNG_READ_SUPPORTED is defined. - Removed dummy_inflate.c from contrib/pngminim/encoder - Removed contrib/pngminim/*/gather.sh; gathering is now done in the makefile. - -Version 1.5.0beta24 [May 7, 2010] - Use bitwise "&" instead of arithmetic mod in pngrutil.c calculation of the - offset of the png_ptr->rowbuf pointer into png_ptr->big_row_buf. - Added more blank lines for readability. - -Version 1.5.0beta25 [June 18, 2010] - In pngpread.c: png_push_have_row() add check for new_row > height - Removed the now-redundant check for out-of-bounds new_row from example.c - -Version 1.5.0beta26 [June 18, 2010] - In pngpread.c: png_push_process_row() add check for too many rows. - -Version 1.5.0beta27 [June 18, 2010] - Removed the check added in beta25 as it is now redundant. - -Version 1.5.0beta28 [June 20, 2010] - Rewrote png_process_IDAT_data to consistently treat extra data as warnings - and handle end conditions more cleanly. - Removed the new (beta26) check in png_push_process_row(). - -Version 1.5.0beta29 [June 21, 2010] - Revised scripts/options.awk to work on Sunos (but still doesn't work) - Added comment to options.awk and contrib/pngminim/*/makefile to try nawk. - -Version 1.5.0beta30 [June 22, 2010] - Stop memory leak when reading a malformed sCAL chunk. - -Version 1.5.0beta31 [June 26, 2010] - Revised pngpread.c patch of beta28 to avoid an endless loop. - Removed some trailing blanks. - -Version 1.5.0beta32 [June 26, 2010] - Removed leftover scripts/options.patch and scripts/options.rej - -Version 1.5.0beta33 [July 6, 3010] - Made FIXED and FLOATING options consistent in the APIs they enable and - disable. Corrected scripts/options.awk to handle both command line - options and options specified in the .dfa files. - Changed char *msg to PNG_CONST char *msg in pngrutil.c - Make png_set_sRGB_gAMA_and_cHRM set values using either the fixed or - floating point APIs, but not both. - Reversed patch to remove error handler when the jmp_buf is stored in the - main program structure, not the png_struct. - The error handler is needed because the default handler in libpng will - always use the jmp_buf in the library control structure; this is never - set. The gregbook code is a useful example because, even though it - uses setjmp/longjmp, it shows how error handling can be implemented - using control mechanisms not directly supported by libpng. The - technique will work correctly with mechanisms such as Microsoft - Structure Exceptions or C++ exceptions (compiler willing - note that gcc - does not by default support interworking of C and C++ error handling.) - Reverted changes to call png_longjmp in contrib/gregbook where it is not - appropriate. If mainprog->jmpbuf is used by setjmp, then png_longjmp - cannot be used. - Changed "extern PNG_EXPORT" to "PNG_EXPORT" in png.h (Jan Nijtmans) - Changed "extern" to "PNG_EXTERN" in pngpriv.h (except for the 'extern "C" {') - -Version 1.5.0beta34 [July 12, 2010] - Put #ifndef PNG_EXTERN, #endif around the define PNG_EXTERN in pngpriv.h - -Version 1.5.0beta35 [July 24, 2010] - Removed some newly-added TAB characters. - Added -DNO_PNG_SNPRINTF to CFLAGS in scripts/makefile.dj2 - Moved the definition of png_snprintf() outside of the enclosing - #ifdef blocks in pngconf.h - -Version 1.5.0beta36 [July 29, 2010] - Patches by John Bowler: - Fixed point APIs are now supported throughout (no missing APIs). - Internal fixed point arithmetic support exists for all internal floating - point operations. - sCAL validates the floating point strings it is passed. - Safe, albeit rudimentary, Watcom support is provided by PNG_API_RULE==2 - Two new APIs exist to get the number of passes without turning on the - PNG_INTERLACE transform and to get the number of rows in the current - pass. - A new test program, pngvalid.c, validates the gamma code. - Errors in the 16-bit gamma correction (overflows) have been corrected. - cHRM chunk testing is done consistently (previously the floating point - API bypassed it, because the test really didn't work on FP, now the test - is performed on the actual values to be stored in the PNG file so it - works in the FP case too.) - Most floating point APIs now simply call the fixed point APIs after - converting the values to the fixed point form used in the PNG file. - The standard headers no longer include zlib.h, which is currently only - required for pngstruct.h and can therefore be internal. - Revised png_get_int_32 to undo the PNG two's complement representation of - negative numbers. - -Version 1.5.0beta37 [July 30, 2010] - Added a typecast in png_get_int_32() in png.h and pngrutil.h to avoid - a compiler warning. - Replaced oFFs 0,0 with oFFs -10,20 in pngtest.png - -Version 1.5.0beta38 [July 31, 2010] - Implemented remaining "_fixed" functions. - Corrected a number of recently introduced warnings mostly resulting from - safe but uncast assignments to shorter integers. Also added a zlib - VStudio release library project because the latest zlib Official Windows - build does not include such a thing. - Revised png_get_int_16() to be similar to png_get_int_32(). - Restored projects/visualc71. - -Version 1.5.0beta39 [August 2, 2010] - VisualC/GCC warning fixes, VisualC build fixes - The changes include support for function attributes in VC in addition to - those already present in GCC - necessary because without these some - warnings are unavoidable. Fixes include signed/unsigned fixes in - pngvalid and checks with gcc -Wall -Wextra -Wunused. - VC requires function attributes on function definitions as well as - declarations, PNG_FUNCTION has been added to enable this and the - relevant function definitions changed. - -Version 1.5.0beta40 [August 6, 2010] - Correct use of _WINDOWS_ in pngconf.h - Removed png_mem_ #defines; they are no longer used. - Added the sRGB chunk to pngtest.png - -Version 1.5.0beta41 [August 11, 2010] - Added the cHRM chunk to pngtest.png - Don't try to use version-script with cygwin/mingw. - Revised contrib/gregbook to work under cygwin/mingw. - -Version 1.5.0beta42 [August 18, 2010] - Add .dll.a to the list of extensions to be symlinked by Makefile.am (Yaakov) - Made all API functions that have const arguments and constant string - literal pointers declare them (John Bowler). - -Version 1.5.0beta43 [August 20, 2010] - Removed spurious tabs, shorten long lines (no source change) - Also added scripts/chkfmt to validate the format of all the files that can - reasonably be validated (it is suggested to run "make distclean" before - checking, because some machine generated files have long lines.) - Reformatted the CHANGES file to be more consistent throughout. - Made changes to address various issues identified by GCC, mostly - signed/unsigned and shortening problems on assignment but also a few - difficult to optimize (for GCC) loops. - Fixed non-GCC fixed point builds. In png.c a declaration was misplaced - in an earlier update. Fixed to declare the auto variables at the head. - Use cexcept.h in pngvalid.c. - -Version 1.5.0beta44 [August 24, 2010] - Updated CMakeLists.txt to use CMAKE_INSTALL_LIBDIR variable; useful for - installing libpng in /usr/lib64 (Funda Wang). - Revised CMakeLists.txt to put the man pages in share/man/man* not man/man* - Revised CMakeLists.txt to make symlinks instead of copies when installing. - Changed PNG_LIB_NAME from pngNN to libpngNN in CMakeLists.txt (Philip Lowman) - Implemented memory checks within pngvalid - Reformatted/rearranged pngvalid.c to assist use of progressive reader. - Check interlaced images in pngvalid - Clarified pngusr.h comments in pnglibconf.dfa - Simplified the pngvalid error-handling code now that cexcept.h is in place. - Implemented progressive reader in pngvalid.c for standard tests - Implemented progressive read in pngvalid.c gamma tests - Turn on progressive reader in pngvalid.c by default and tidy code. - -Version 1.5.0beta45 [August 26, 2010] - Added an explicit make step to projects/vstudio for pnglibconf.h - Also corrected zlib.vcxproj into which Visual Studio had introduced - what it calls an "authoring error". The change to make pnglibconf.h - simply copies the file; in the future it may actually generate the - file from scripts/pnglibconf.dfa as the other build systems do. - Changed pngvalid to work when floating point APIs are disabled - Renamed the prebuilt scripts/pnglibconf.h to scripts/pnglibconf.h.prebuilt - Supply default values for PNG_USER_PRIVATEBUILD and PNG_USER_DLLFNAME_POSTFIX - in pngpriv.h in case the user neglected to define them in their pngusr.h - -Version 1.5.0beta46 [August 28, 2010] - Added new private header files to libpng_sources in CMakeLists.txt - Added PNG_READ_16BIT, PNG_WRITE_16BIT, and PNG_16BIT options. - Added reference to scripts/pnglibconf.h.prebuilt in the visualc71 project. - -Version 1.5.0beta47 [September 11, 2010] - Fixed a number of problems with 64-bit compilation reported by Visual - Studio 2010 (John Bowler). - -Version 1.5.0beta48 [October 4, 2010] - Updated CMakeLists.txt (Philip Lowman). - Revised autogen.sh to recognize and use $AUTOCONF, $AUTOMAKE, $AUTOHEADER, - $AUTOPOINT, $ACLOCAL and $LIBTOOLIZE - Fixed problem with symbols creation in Makefile.am which was assuming that - all versions of ccp write to standard output by default (Martin Banky). The - bug was introduced in libpng-1.2.9beta5. - Removed unused mkinstalldirs. - -Version 1.5.0beta49 [October 8, 2010] - Undid Makefile.am revision of 1.5.0beta48. - -Version 1.5.0beta50 [October 14, 2010] - Revised Makefile.in to account for mkinstalldirs being removed. - Added some "(unsigned long)" typecasts in printf statements in pngvalid.c. - Suppressed a compiler warning in png_handle_sPLT(). - Check for out-of-range text compression mode in png_set_text(). - -Version 1.5.0beta51 [October 15, 2010] - Changed embedded dates to "(PENDING RELEASE) in beta releases (and future - rc releases) to minimize the difference between releases. - -Version 1.5.0beta52 [October 16, 2010] - Restored some of the embedded dates (in png.h, png.c, documentation, etc.) - -Version 1.5.0beta53 [October 18, 2010] - Updated INSTALL to mention using "make maintainer-clean" and to remove - obsolete statement about a custom ltmain.sh - Disabled "color-tests" by default in Makefile.am so it will work with - automake versions earlier than 1.11.1 - Use document name "libpng-manual.txt" instead of "libpng-.txt" - to simplify version differences. - Removed obsolete remarks about setjmp handling from INSTALL. - Revised and renamed the typedef in png.h and png.c that was designed - to catch library and header mismatch. - -Version 1.5.0beta54 [November 10, 2010] - Require 48 bytes, not 64 bytes, for big_row_buf in overflow checks. - Used a consistent structure for the pngget.c functions. - -Version 1.5.0beta55 [November 21, 2010] - Revised png_get_uint_32, png_get_int_32, png_get_uint_16 (Cosmin) - Moved reading of file signature into png_read_sig (Cosmin) - Fixed atomicity of chunk header serialization (Cosmin) - Added test for io_state in pngtest.c (Cosmin) - Added "#!/bin/sh" at the top of contrib/pngminim/*/gather.sh scripts. - Changes to remove gcc warnings (John Bowler) - Certain optional gcc warning flags resulted in warnings in libpng code. - With these changes only -Wconversion and -Wcast-qual cannot be turned on. - Changes are trivial rearrangements of code. -Wconversion is not possible - for pngrutil.c (because of the widespread use of += et al on variables - smaller than (int) or (unsigned int)) and -Wcast-qual is not possible - with pngwio.c and pngwutil.c because the 'write' callback and zlib - compression both fail to declare their input buffers with 'const'. - -Version 1.5.0beta56 [December 7, 2010] - Added the private PNG_UNUSED() macro definition in pngpriv.h. - Added some commentary about PNG_EXPORT in png.h and pngconf.h - Revised PNG_EXPORT() macro and added PNG_EXPORTA() macro, with the - objective of simplifying and improving the cosmetic appearance of png.h. - Fixed some incorrect "=" macro names in pnglibconf.dfa - Included documentation of changes in 1.5.0 from 1.4.x in libpng-manual.txt - -Version 1.5.0beta57 [December 9, 2010] - Documented the pngvalid gamma error summary with additional comments and - print statements. - Improved missing symbol handling in checksym.awk; symbols missing in both - the old and new files can now be optionally ignored, treated as errors - or warnings. - Removed references to pngvcrd.c and pnggccrd.c from the vstudio project. - Updated "libpng14" to "libpng15" in the visualc71 project. - Enabled the strip16 tests in pngvalid.` - Don't display test results (except PASS/FAIL) when running "make test". - Instead put them in pngtest-log.txt - Added "--with-zprefix=" to configure.ac - Updated the prebuilt configuration files to autoconf version 2.68 - -Version 1.5.0beta58 [December 19, 2010] - Fixed interlace image handling and add test cases (John Bowler) - Fixed the clean rule in Makefile.am to remove pngtest-log.txt - Made minor changes to work around warnings in gcc 3.4 - -Version 1.5.0rc01 [December 27, 2010] - No changes. - -Version 1.5.0rc02 [December 27, 2010] - Eliminated references to the scripts/*.def files in project/visualc71. - -Version 1.5.0rc03 [December 28, 2010] - Eliminated scripts/*.def and revised Makefile.am accordingly - -Version 1.5.0rc04 [December 29, 2010] - Fixed bug in background transformation handling in pngrtran.c (it was - looking for the flag in png_ptr->transformations instead of in - png_ptr->flags) (David Raymond). - -Version 1.5.0rc05 [December 31, 2010] - Fixed typo in a comment in CMakeLists.txt (libpng14 => libpng15) (Cosmin) - -Version 1.5.0rc06 [January 4, 2011] - Changed the new configure option "zprefix=string" to "zlib-prefix=string" - -Version 1.5.0rc07 [January 4, 2011] - Updated copyright year. - -Version 1.5.0 [January 6, 2011] - No changes. - -version 1.5.1beta01 [January 8, 2011] - Added description of png_set_crc_action() to the manual. - Added a note in the manual that the type of the iCCP profile was changed - from png_charpp to png_bytepp in png_get_iCCP(). This change happened - in version 1.5.0beta36 but is not noted in the CHANGES. Similarly, - it was changed from png_charpp to png_const_bytepp in png_set_iCCP(). - Ensure that png_rgb_to_gray ignores palette mapped images, if libpng - internally happens to call it with one, and fixed a failure to handle - palette mapped images correctly. This fixes CVE-2690. - -Version 1.5.1beta02 [January 14, 2011] - Fixed a bug in handling of interlaced images (bero at arklinux.org). - Updated CMakeLists.txt (Clifford Yapp) - -Version 1.5.1beta03 [January 14, 2011] - Fixed typecasting of some png_debug() statements (Cosmin) - -Version 1.5.1beta04 [January 16, 2011] - Updated documentation of png_set|get_tRNS() (Thomas Klausner). - Mentioned in the documentation that applications must #include "zlib.h" - if they need access to anything in zlib.h, and that a number of - macros such as png_memset() are no longer accessible by applications. - Corrected pngvalid gamma test "sample" function to access all of the color - samples of each pixel, instead of sampling the red channel three times. - Prefixed variable names index, div, exp, gamma with "png_" to avoid "shadow" - warnings, and (mistakenly) changed png_exp() to exp(). - -Version 1.5.1beta05 [January 16, 2011] - Changed variable names png_index, png_div, png_exp, and png_gamma to - char_index, divisor, exp_b10, and gamma_val, respectively, and - changed exp() back to png_exp(). - -Version 1.5.1beta06 [January 20, 2011] - Prevent png_push_crc_skip() from hanging while reading an unknown chunk - or an over-large compressed zTXt chunk with the progressive reader. - Eliminated more GCC "shadow" warnings. - Revised png_fixed() in png.c to avoid compiler warning about reaching the - end without returning anything. - -Version 1.5.1beta07 [January 22, 2011] - In the manual, describe the png_get_IHDR() arguments in the correct order. - Added const_png_structp and const_png_infop types, and used them in - prototypes for most png_get_*() functions. - -Version 1.5.1beta08 [January 23, 2011] - Added png_get_io_chunk_type() and deprecated png_get_io_chunk_name() - Added synopses for the IO_STATE functions and other missing synopses - to the manual. Removed the synopses from libpngpf.3 because they - were out of date and no longer useful. Better information can be - obtained by reading the prototypes and comments in pngpriv.h - Attempted to fix cpp on Solaris with S. Studio 12 cc, fix build - Added a make macro DFNCPP that is a CPP that will accept the tokens in - a .dfn file and adds configure stuff to test for such a CPP. ./configure - should fail if one is not available. - Corrected const_png_ in png.h to png_const_ to avoid polluting the namespace. - Added png_get_current_row_number and png_get_current_pass_number for the - benefit of the user transform callback. - Added png_process_data_pause and png_process_data_skip for the benefit of - progressive readers that need to stop data processing or want to optimize - skipping of unread data (e.g., if the reader marks a chunk to be skipped.) - -Version 1.5.1beta09 [January 24, 2011] - Enhanced pngvalid, corrected an error in gray_to_rgb, corrected doc error. - pngvalid contains tests of transforms, which tests are currently disabled - because they are incompletely tested. gray_to_rgb was failing to expand - the bit depth for smaller bit depth images; this seems to be a long - standing error and resulted, apparently, in invalid output - (CVE-2011-0408, CERT VU#643140). The documentation did not accurately - describe what libpng really does when converting RGB to gray. - -Version 1.5.1beta10 [January 27, 2010] - Fixed incorrect examples of callback prototypes in the manual, that were - introduced in libpng-1.0.0. - In addition the order of the png_get_uint macros with respect to the - relevant function definitions has been reversed. This helps the - preprocessing of the symbol files be more robust. Furthermore, the - symbol file preprocessing now uses -DPNG_NO_USE_READ_MACROS even when - the library may actually be built with PNG_USE_READ_MACROS; this stops - the read macros interfering with the symbol file format. - Made the manual, synopses, and function prototypes use the function - argument names file_gamma, int_file_gamma, and srgb_intent consistently. - -Version 1.5.1beta11 [January 28, 2011] - Changed PNG_UNUSED from "param=param;" to "{if(param){}}". - Corrected local variable type in new API png_process_data_skip() - The type was self-evidently incorrect but only causes problems on 64-bit - architectures. - Added transform tests to pngvalid and simplified the arguments. - -Version 1.5.1rc01 [January 29, 2011] - No changes. - -Version 1.5.1rc02 [January 31, 2011] - Added a request in the manual that applications do not use "png_" or - "PNG_" to begin any of their own symbols. - Changed PNG_UNUSED to "(void)param;" and updated the commentary in pngpriv.h - -Version 1.5.1 [February 3, 2011] - No changes. - -Version 1.5.2beta01 [February 13, 2011] - More -Wshadow fixes for older gcc compilers. Older gcc versions apparently - check formal parameters names in function declarations (as well as - definitions) to see if they match a name in the global namespace. - Revised PNG_EXPORTA macro to not use an empty parameter, to accommodate the - old VisualC++ preprocessor. - Turned on interlace handling in png_read_png(). - Fixed gcc pendantic warnings. - Handle longjmp in Cygwin. - Fixed png_get_current_row_number() in the interlaced case. - Cleaned up ALPHA flags and transformations. - Implemented expansion to 16 bits. - -Version 1.5.2beta02 [February 19, 2011] - Fixed mistake in the descriptions of user read_transform and write_transform - function prototypes in the manual. The row_info struct is png_row_infop. - Reverted png_get_current_row_number() to previous (1.5.2beta01) behavior. - Corrected png_get_current_row_number documentation - Fixed the read/write row callback documentation. - This documents the current behavior, where the callback is called after - every row with information pertaining to the next row. - -Version 1.5.2beta03 [March 3, 2011] - Fixed scripts/makefile.vcwin32 - Updated contrib/pngsuite/README to add the word "modify". - Define PNG_ALLOCATED to blank when _MSC_VER<1300. - -Version 1.5.2rc01 [March 19, 2011] - Define remaining attributes to blank when MSC_VER<1300. - ifdef out mask arrays in pngread.c when interlacing is not supported. - -Version 1.5.2rc02 [March 22, 2011] - Added a hint to try CPP=/bin/cpp if "cpp -E" fails in scripts/pnglibconf.mak - and in contrib/pngminim/*/makefile, eg., on SunOS 5.10, and removed "strip" - from the makefiles. - Fixed a bug (present since libpng-1.0.7) that makes png_handle_sPLT() fail - to compile when PNG_NO_POINTER_INDEXING is defined (Chubanov Kirill) - -Version 1.5.2rc03 [March 24, 2011] - Don't include standard header files in png.h while building the symbol table, - to avoid cpp failure on SunOS (introduced PNG_BUILDING_SYMBOL_TABLE macro). - -Version 1.5.2 [March 31, 2011] - No changes. - -Version 1.5.3beta01 [April 1, 2011] - Re-initialize the zlib compressor before compressing non-IDAT chunks. - Added API functions (png_set_text_compression_level() and four others) to - set parameters for zlib compression of non-IDAT chunks. - -Version 1.5.3beta02 [April 3, 2011] - Updated scripts/symbols.def with new API functions. - Only compile the new zlib re-initializing code when text or iCCP is - supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro. - Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03). - Optimize the zlib CMF byte in non-IDAT compressed chunks - -Version 1.5.3beta03 [April 16, 2011] - Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have - snprintf, and the "__STRICT_ANSI__" detects that condition more reliably - than __STDC__ (John Bowler). - Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells - the compiler that a user supplied callback (the error handler) does not - return, yet there is no guarantee in practice that the application code - will correctly implement the error handler because the compiler only - issues a warning if there is a mistake (John Bowler). - Removed the no-longer-used PNG_DEPSTRUCT macro. - Updated the zlib version to 1.2.5 in the VStudio project. - Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in - pngwutil.c (John Bowler). - Fixed bug with stripping the filler or alpha channel when writing, that - was introduced in libpng-1.5.2beta01 (bug report by Andrew Church). - -Version 1.5.3beta04 [April 27, 2011] - Updated pngtest.png with the new zlib CMF optimization. - Cleaned up conditional compilation code and of background/gamma handling - Internal changes only except a new option to avoid compiling the - png_build_grayscale_palette API (which is not used at all internally.) - The main change is to move the transform tests (READ_TRANSFORMS, - WRITE_TRANSFORMS) up one level to the caller of the APIs. This avoids - calls to spurious functions if all transforms are disabled and slightly - simplifies those functions. Pngvalid modified to handle this. - A minor change is to stop the strip_16 and expand_16 interfaces from - disabling each other; this allows the future alpha premultiplication - code to use 16-bit intermediate values while still producing 8-bit output. - png_do_background and png_do_gamma have been simplified to take a single - pointer to the png_struct rather than pointers to every item required - from the png_struct. This makes no practical difference to the internal - code. - A serious bug in the pngvalid internal routine 'standard_display_init' has - been fixed - this failed to initialize the red channel and accidentally - initialized the alpha channel twice. - Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to - avoid a possible clash with the png_jmpbuf macro on some platforms. - -Version 1.5.3beta05 [May 6, 2011] - Added the "_POSIX_SOURCE" feature test macro to ensure libpng sees the - correct API. _POSIX_SOURCE is defined in pngpriv.h, pngtest.c and - pngvalid.c to ensure that POSIX conformant systems disable non-POSIX APIs. - Removed png_snprintf and added formatted warning messages. This change adds - internal APIs to allow png_warning messages to have parameters without - requiring the host OS to implement snprintf. As a side effect the - dependency of the tIME-supporting RFC1132 code on stdio is removed and - PNG_NO_WARNINGS does actually work now. - Pass "" instead of '\0' to png_default_error() in png_err(). This mistake - was introduced in libpng-1.2.20beta01. This fixes CVE-2011-2691. - Added PNG_WRITE_OPTIMIZE_CMF_SUPPORTED macro to make the zlib "CMF" byte - optimization configureable. - IDAT compression failed if preceded by a compressed text chunk (bug - introduced in libpng-1.5.3beta01-02). This was because the attempt to - reset the zlib stream in png_write_IDAT happened after the first IDAT - chunk had been deflated - much too late. In this change internal - functions were added to claim/release the z_stream and, hopefully, make - the code more robust. Also deflateEnd checking is added - previously - libpng would ignore an error at the end of the stream. - -Version 1.5.3beta06 [May 8, 2011] - Removed the -D_ALL_SOURCE from definitions for AIX in CMakeLists.txt - Implemented premultiplied alpha support: png_set_alpha_mode API - -Version 1.5.3beta07 [May 11, 2011] - Added expand_16 support to the high level interface. - Added named value and 'flag' gamma support to png_set_gamma. Made a minor - change from the previous (unreleased) ABI/API to hide the exact value used - for Macs - it's not a good idea to embed this in the ABI! - Moved macro definitions for PNG_HAVE_IHDR, PNG_HAVE_PLTE, and PNG_AFTER_IDAT - from pngpriv.h to png.h because they must be visible to applications - that call png_set_unknown_chunks(). - Check for up->location !PNG_AFTER_IDAT when writing unknown chunks - before IDAT. - -Version 1.5.3beta08 [May 16, 2011] - Improved "pngvalid --speed" to exclude more of pngvalid from the time. - Documented png_set_alpha_mode(), other changes in libpng.3/libpng-manual.txt - The cHRM chunk now sets the defaults for png_set_rgb_to_gray() (when negative - parameters are supplied by the caller), while in the absence of cHRM - sRGB/Rec 709 values are still used. This introduced a divide-by-zero - bug in png_handle_cHRM(). - The bKGD chunk no longer overwrites the background value set by - png_set_background(), allowing the latter to be used before the file - header is read. It never performed any useful function to override - the default anyway. - Added memory overwrite and palette image checks to pngvalid.c - Previously palette image code was poorly checked. Since the transformation - code has a special palette path in most cases this was a severe weakness. - Minor cleanup and some extra checking in pngrutil.c and pngrtran.c. When - expanding an indexed image, always expand to RGBA if transparency is - present. - -Version 1.5.3beta09 [May 17, 2011] - Reversed earlier 1.5.3 change of transformation order; move png_expand_16 - back where it was. The change doesn't work because it requires 16-bit - gamma tables when the code only generates 8-bit ones. This fails - silently; the libpng code just doesn't do any gamma correction. Moving - the tests back leaves the old, inaccurate, 8-bit gamma calculations, but - these are clearly better than none! - -Version 1.5.3beta10 [May 20, 2011] - - png_set_background() and png_expand_16() did not work together correctly. - This problem is present in 1.5.2; if png_set_background is called with - need_expand false and the matching 16 bit color libpng erroneously just - treats it as an 8-bit color because of where png_do_expand_16 is in the - transform list. This simple fix reduces the supplied colour to 8-bits, - so it gets smashed, but this is better than the current behavior. - Added tests for expand16, more fixes for palette image tests to pngvalid. - Corrects the code for palette image tests and disables attempts to - validate palette colors. - -Version 1.5.3rc01 [June 3, 2011] - No changes. - -Version 1.5.3rc02 [June 8, 2011] - Fixed uninitialized memory read in png_format_buffer() (Bug report by - Frank Busse, CVE-2011-2501, related to CVE-2004-0421). - -Version 1.5.3beta11 [June 11, 2011] - Fixed png_handle_sCAL which is broken in 1.5. This fixes CVE 2011-2692. - Added sCAL to pngtest.png - Revised documentation about png_set_user_limits() to say that it also affects - png writing. - Revised handling of png_set_user_limits() so that it can increase the - limit beyond the PNG_USER_WIDTH|HEIGHT_MAX; previously it could only - reduce it. - Make the 16-to-8 scaling accurate. Dividing by 256 with no rounding is - wrong (high by one) 25% of the time. Dividing by 257 with rounding is - wrong in 128 out of 65536 cases. Getting the right answer all the time - without division is easy. - Added "_SUPPORTED" to the PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION macro. - Added projects/owatcom, an IDE project for OpenWatcom to replace - scripts/makefile.watcom. This project works with OpenWatcom 1.9. The - IDE autogenerates appropriate makefiles (libpng.mk) for batch processing. - The project is configurable, unlike the Visual Studio project, so long - as the developer has an awk. - Changed png_set_gAMA to limit the gamma value range so that the inverse - of the stored value cannot overflow the fixed point representation, - and changed other things OpenWatcom warns about. - Revised pngvalid.c to test PNG_ALPHA_MODE_SUPPORTED correctly. This allows - pngvalid to build when ALPHA_MODE is not supported, which is required if - it is to build on libpng 1.4. - Removed string/memory macros that are no longer used and are not - necessarily fully supportable, particularly png_strncpy and png_snprintf. - Added log option to pngvalid.c and attempted to improve gamma messages. - -Version 1.5.3 [omitted] - People found the presence of a beta release following an rc release - to be confusing; therefore we bump the version to libpng-1.5.4beta01 - and there will be no libpng-1.5.3 release. - -Version 1.5.4beta01 [June 14, 2011] - Made it possible to undefine PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED - to get the same (inaccurate) output as libpng-1.5.2 and earlier. - Moved definitions of PNG_HAVE_IHDR, PNG_AFTER_IDAT, and PNG_HAVE_PLTE - outside of an unknown-chunk block in png.h because they are also - needed for other uses. - -Version 1.5.4beta02 [June 14, 2011] - Fixed and clarified LEGACY 16-to-8 scaling code. - Added png_set_chop_16() API, to match inaccurate results from previous - libpng versions. - Removed the ACCURATE and LEGACY options (they are no longer useable) - Use the old scaling method for background if png_set_chop_16() was - called. - Made png_set_chop_16() API removeable by disabling PNG_CHOP_16_TO_8_SUPPORTED - -Version 1.5.4beta03 [June 15, 2011] - Fixed a problem in png_do_expand_palette() exposed by optimization in - 1.5.3beta06 - Also removed a spurious and confusing "trans" member ("trans") from png_info. - The palette expand optimization prevented expansion to an intermediate RGBA - form if tRNS was present but alpha was marked to be stripped; this exposed - a check for tRNS in png_do_expand_palette() which is inconsistent with the - code elsewhere in libpng. - Correction to the expand_16 code; removed extra instance of - png_set_scale_16_to_8 from pngpriv.h - -Version 1.5.4beta04 [June 16, 2011] - Added a missing "#ifdef PNG_READ_BACKGROUND_SUPPORTED/#endif" in pngrtran.c - Added PNG_TRANSFORM_CHOP_16 to the high-level read transforms. - Made PNG_READ_16_TO_8_ACCURATE_SCALE configurable again. If this is - not enabled, png_set_strip_16() and png_do_scale_16_to_8() aren't built. - Revised contrib/visupng, gregbook, and pngminim to demonstrate chop_16_to_8 - -Version 1.5.4beta05 [June 16, 2011] - Renamed png_set_strip_16() to png_set_scale_16() and renamed - png_set_chop_16() to png_set_strip(16) in an attempt to minimize the - behavior changes between libpng14 and libpng15. - -Version 1.5.4beta06 [June 18, 2011] - Fixed new bug that was causing both strip_16 and scale_16 to be applied. - -Version 1.5.4beta07 [June 19, 2011] - Fixed pngvalid, simplified macros, added checking for 0 in sCAL. - The ACCURATE scale macro is no longer defined in 1.5 - call the - png_scale_16_to_8 API. Made sure that PNG_READ_16_TO_8 is still defined - if the png_strip_16_to_8 API is present. png_check_fp_number now - maintains some state so that positive, negative and zero values are - identified. sCAL uses these to be strictly spec conformant. - -Version 1.5.4beta08 [June 23, 2011] - Fixed pngvalid if ACCURATE_SCALE is defined. - Updated scripts/pnglibconf.h.prebuilt. - -Version 1.5.4rc01 [June 30, 2011] - Define PNG_ALLOCATED to "restrict" only if MSC_VER >= 1400. - -Version 1.5.4 [July 7, 2011] - No changes. - -Version 1.5.5beta01 [July 13, 2011] - Fixed some typos and made other minor changes in the manual. - Updated contrib/pngminus/makefile.std (Samuli Souminen) - -Version 1.5.5beta02 [July 14, 2011] - Revised Makefile.am and Makefile.in to look in the right directory for - pnglibconf.h.prebuilt - -Version 1.5.5beta03 [July 27, 2011] - Enabled compilation with g++ compiler. This compiler does not recognize - the file extension, so it always compiles with C++ rules. Made minor - changes to pngrutil.c to cast results where C++ expects it but C does not. - Minor editing of libpng.3 and libpng-manual.txt. - -Version 1.5.5beta04 [July 29, 2011] - Revised CMakeLists.txt (Clifford Yapp) - Updated commentary about the png_rgb_to_gray() default coefficients - in the manual and in pngrtran.c - -Version 1.5.5beta05 [August 17, 2011] - Prevent unexpected API exports from non-libpng DLLs on Windows. The "_DLL" - is removed from the test of whether a DLL is being built (this erroneously - caused the libpng APIs to be marked as DLL exports in static builds under - Microsoft Visual Studio). Almost all of the libpng building configuration - is moved from pngconf.h to pngpriv.h, but PNG_DLL_EXPORT remains in - pngconf.h, though, so that it is colocated with the import definition (it - is no longer used anywhere in the installed headers). The VStudio project - definitions have been cleaned up: "_USRDLL" has been removed from the - static library builds (this was incorrect), and PNG_USE_DLL has been added - to pngvalid to test the functionality (pngtest does not supply it, - deliberately). The spurious "_EXPORTS" has been removed from the - libpng build (all these errors were a result of copy/paste between project - configurations.) - Added new types and internal functions for CIE RGB end point handling to - pngpriv.h (functions yet to be implemented). - -Version 1.5.5beta06 [August 26, 2011] - Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set in CMakeLists.txt - (Clifford Yap) - Fixes to rgb_to_gray and cHRM XYZ APIs (John Bowler): - The rgb_to_gray code had errors when combined with gamma correction. - Some pixels were treated as true grey when they weren't and such pixels - and true grey ones were not gamma corrected (the original value of the - red component was used instead). APIs to get and set cHRM using color - space end points have been added and the rgb_to_gray code that defaults - based on cHRM, and the divide-by-zero bug in png_handle_cHRM (CERT - VU#477046, CVE-2011-3328, introduced in 1.5.4) have been corrected. - A considerable number of tests has been added to pngvalid for the - rgb_to_gray transform. - Arithmetic errors in rgb_to_gray whereby the calculated gray value was - truncated to the bit depth rather than rounded have been fixed except in - the 8-bit non-gamma-corrected case (where consistency seems more important - than correctness.) The code still has considerable inaccuracies in the - 8-bit case because 8-bit linear arithmetic is used. - -Version 1.5.5beta07 [September 7, 2011] - Added "$(ARCH)" option to makefile.darwin - Added SunOS support to configure.ac and Makefile.am - Changed png_chunk_benign_error() to png_warning() in png.c, in - png_XYZ_from_xy_checked(). - -Version 1.5.5beta08 [September 10, 2011] - Fixed 64-bit compilation errors (gcc). The errors fixed relate - to conditions where types that are 32 bits in the GCC 32-bit - world (uLong and png_size_t) become 64 bits in the 64-bit - world. This produces potential truncation errors which the - compiler correctly flags. - Relocated new HAVE_SOLARIS_LD definition in configure.ac - Constant changes for 64-bit compatibility (removal of L suffixes). The - 16-bit cases still use "L" as we don't have a 16-bit test system. - -Version 1.5.5rc01 [September 15, 2011] - Removed "L" suffixes in pngpriv.h - -Version 1.5.5 [September 22, 2011] - No changes. - -Version 1.5.6beta01 [September 22, 2011] - Fixed some 64-bit type conversion warnings in pngrtran.c - Moved row_info from png_struct to a local variable. - The various interlace mask arrays have been made into arrays of - bytes and made PNG_CONST and static (previously some arrays were - marked PNG_CONST and some weren't). - Additional checks have been added to the transform code to validate the - pixel depths after the transforms on both read and write. - Removed some redundant code from pngwrite.c, in png_destroy_write_struct(). - Changed chunk reading/writing code to use png_uint_32 instead of png_byte[4]. - This removes the need to allocate temporary strings for chunk names on - the stack in the read/write code. Unknown chunk handling still uses the - string form because this is exposed in the API. - -Version 1.5.6beta02 [September 26, 2011] - Added a note in the manual the png_read_update_info() must be called only - once with a particular info_ptr. - Fixed a typo in the definition of the new PNG_STRING_FROM_CHUNK(s,c) macro. - -Version 1.5.6beta03 [September 28, 2011] - Revised test-pngtest.sh to report FAIL when pngtest fails. - Added "--strict" option to pngtest, to report FAIL when the failure is - only because the resulting valid files are different. - Revised CMakeLists.txt to work with mingw and removed some material from - CMakeLists.txt that is no longer useful in libpng-1.5. - -Version 1.5.6beta04 [October 5, 2011] - Fixed typo in Makefile.in and Makefile.am ("-M Wl" should be "-M -Wl")." - -Version 1.5.6beta05 [October 12, 2011] - Speed up png_combine_row() for interlaced images. This reduces the generality - of the code, allowing it to be optimized for Adam7 interlace. The masks - passed to png_combine_row() are now generated internally, avoiding - some code duplication and localizing the interlace handling somewhat. - Align png_struct::row_buf - previously it was always unaligned, caused by - a bug in the code that attempted to align it; the code needs to subtract - one from the pointer to take account of the filter byte prepended to - each row. - Optimized png_combine_row() when rows are aligned. This gains a small - percentage for 16-bit and 32-bit pixels in the typical case where the - output row buffers are appropriately aligned. The optimization was not - previously possible because the png_struct buffer was always misaligned. - Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01. - -Version 1.5.6beta06 [October 17, 2011] - Removed two redundant tests for unitialized row. - Fixed a relatively harmless memory overwrite in compressed text writing - with a 1 byte zlib buffer. - Add ability to call png_read_update_info multiple times to pngvalid.c. - Fixes for multiple calls to png_read_update_info. These fixes attend to - most of the errors revealed in pngvalid, however doing the gamma work - twice results in inaccuracies that can't be easily fixed. There is now - a warning in the code if this is going to happen. - Turned on multiple png_read_update_info in pngvalid transform tests. - Prevent libpng from overwriting unused bits at the end of the image when - it is not byte aligned, while reading. Prior to libpng-1.5.6 libpng would - overwrite the partial byte at the end of each row if the row width was not - an exact multiple of 8 bits and the image is not interlaced. - -Version 1.5.6beta07 [October 21, 2011] - Made png_ptr->prev_row an aligned pointer into png_ptr->big_prev_row - (Mans Rullgard). - -Version 1.5.6rc01 [October 26, 2011] - Changed misleading "Missing PLTE before cHRM" warning to "Out of place cHRM" - -Version 1.5.6rc02 [October 27, 2011] - Added LSR() macro to defend against buggy compilers that evaluate non-taken - code branches and complain about out-of-range shifts. - -Version 1.5.6rc03 [October 28, 2011] - Renamed the LSR() macro to PNG_LSR() and added PNG_LSL() macro. - Fixed compiler warnings with Intel and MSYS compilers. The logical shift - fix for Microsoft Visual C is required by other compilers, so this - enables that fix for all compilers when using compile-time constants. - Under MSYS 'byte' is a name declared in a system header file, so we - changed the name of a local variable to avoid the warnings that result. - Added #define PNG_ALIGN_TYPE PNG_ALIGN_NONE to contrib/pngminim/*/pngusr.h - -Version 1.5.6 [November 3, 2011] - No changes. - -Version 1.5.7beta01 [November 4, 2011] - Added support for ARM processor, when decoding all PNG up-filtered rows - and any other-filtered rows with 3 or 4 bytes per pixel (Mans Rullgard). - Fixed bug in pngvalid on early allocation failure; fixed type cast in - pngmem.c; pngvalid would attempt to call png_error() if the allocation - of a png_struct or png_info failed. This would probably have led to a - crash. The pngmem.c implementation of png_malloc() included a cast - to png_size_t which would fail on large allocations on 16-bit systems. - Fix for the preprocessor of the Intel C compiler. The preprocessor - splits adjacent @ signs with a space; this changes the concatentation - token from @-@-@ to PNG_JOIN; that should work with all compiler - preprocessors. - Paeth filter speed improvements from work by Siarhei Siamashka. This - changes the 'Paeth' reconstruction function to improve the GCC code - generation on x86. The changes are only part of the suggested ones; - just the changes that definitely improve speed and remain simple. - The changes also slightly increase the clarity of the code. - -Version 1.5.7beta02 [November 11, 2011] - Check compression_type parameter in png_get_iCCP and remove spurious - casts. The compression_type parameter is always assigned to, so must - be non-NULL. The cast of the profile length potentially truncated the - value unnecessarily on a 16-bit int system, so the cast of the (byte) - compression type to (int) is specified by ANSI-C anyway. - Fixed FP division by zero in pngvalid.c; the 'test_pixel' code left - the sBIT fields in the test pixel as 0, which resulted in a floating - point division by zero which was irrelevant but causes systems where - FP exceptions cause a crash. Added code to pngvalid to turn on FP - exceptions if the appropriate glibc support is there to ensure this is - tested in the future. - Updated scripts/pnglibconf.mak and scripts/makefile.std to handle the - new PNG_JOIN macro. - Added versioning to pnglibconf.h comments. - Simplified read/write API initial version; basic read/write tested on - a variety of images, limited documentation (in the header file.) - Installed more accurate linear to sRGB conversion tables. The slightly - modified tables reduce the number of 16-bit values that - convert to an off-by-one 8-bit value. The "makesRGB.c" code that was used - to generate the tables is now in a contrib/sRGBtables sub-directory. - -Version 1.5.7beta03 [November 17, 2011] - Removed PNG_CONST from the sRGB table declarations in pngpriv.h and png.c - Added run-time detection of NEON support. - Added contrib/libtests; includes simplified API test and timing test and - a color conversion utility for rapid checking of failed 'pngstest' results. - Multiple transform bug fixes plus a work-round for double gamma correction. - libpng does not support more than one transform that requires linear data - at once - if this is tried typically the results is double gamma - correction. Since the simplified APIs can need rgb to gray combined with - a compose operation it is necessary to do one of these outside the main - libpng transform code. This check-in also contains fixes to various bugs - in the simplified APIs themselves and to some bugs in compose and rgb to - gray (on palette) itself. - Fixes for C++ compilation using g++ When libpng source is compiled - using g++. The compiler imposes C++ rules on the C source; thus it - is desireable to make the source work with either C or C++ rules - without throwing away useful error information. This change adds - png_voidcast to allow C semantic (void*) cases or the corresponding - C++ static_cast operation, as appropriate. - Added --noexecstack to assembler file compilation. GCC does not set - this on assembler compilation, even though it does on C compilation. - This creates security issues if assembler code is enabled; the - work-around is to set it by default in the flags for $(CCAS) - Work around compilers that don't support declaration of const data. Some - compilers fault 'extern const' data declarations (because the data is - not initialized); this turns on const-ness only for compilers where - this is known to work. - -Version 1.5.7beta04 [November 17, 2011] - Since the gcc driver does not recognize the --noexecstack flag, we must - use the -Wa prefix to have it passed through to the assembler. - Also removed a duplicate setting of this flag. - Added files that were omitted from the libpng-1.5.7beta03 zip distribution. - -Version 1.5.7beta05 [November 25, 2011] - Removed "zTXt" from warning in generic chunk decompression function. - Validate time settings passed to pngset() and png_convert_to_rfc1123() - (Frank Busse). - Added MINGW support to CMakeLists.txt - Reject invalid compression flag or method when reading the iTXt chunk. - Backed out 'simplified' API changes. The API seems too complex and there - is a lack of consensus or enthusiasm for the proposals. The API also - reveals significant bugs inside libpng (double gamma correction and the - known bug of being unable to retrieve a corrected palette). It seems - better to wait until the bugs, at least, are corrected. - Moved pngvalid.c into contrib/libtests - Rebuilt Makefile.in, configure, etc., with autoconf-2.68 - -Version 1.5.7rc01 [December 1, 2011] - Replaced an "#if" with "#ifdef" in pngrtran.c - Revised #if PNG_DO_BC block in png.c (use #ifdef and add #else) - -Version 1.5.7rc02 [December 5, 2011] - Revised project files and contrib/pngvalid/pngvalid.c to account for - the relocation of pngvalid into contrib/libtests. - Revised pngconf.h to use " __declspec(restrict)" only when MSC_VER >= 1400, - as in libpng-1.5.4. - Put CRLF line endings in the owatcom project files. - -Version 1.5.7rc03 [December 7, 2011] - Updated CMakeLists.txt to account for the relocation of pngvalid.c - -Version 1.5.7 [December 15, 2011] - Minor fixes to pngvalid.c for gcc 4.6.2 compatibility to remove warnings - reported by earlier versions. - Fixed minor memset/sizeof errors in pngvalid.c. - -Version 1.6.0beta01 [December 15, 2011] - Removed machine-generated configure files from the GIT repository (they will - continue to appear in the tarball distributions and in the libpng15 and - earlier GIT branches). - Restored the new 'simplified' API, which was started in libpng-1.5.7beta02 - but later deleted from libpng-1.5.7beta05. - Added example programs for the new 'simplified' API. - Added ANSI-C (C90) headers and require them, and take advantage of the - change. Also fixed some of the projects/* and contrib/* files that needed - updates for libpng16 and the move of pngvalid.c. - With this change the required ANSI-C header files are assumed to exist: the - implementation must provide float.h, limits.h, stdarg.h and stddef.h and - libpng relies on limits.h and stddef.h existing and behaving as defined - (the other two required headers aren't used). Non-ANSI systems that don't - have stddef.h or limits.h will have to provide an appropriate fake - containing the relevant types and #defines. - The use of FAR/far has been eliminated and the definition of png_alloc_size_t - is now controlled by a flag so that 'small size_t' systems can select it - if necessary. Libpng 1.6 may not currently work on such systems -- it - seems likely that it will ask 'malloc' for more than 65535 bytes with any - image that has a sufficiently large row size (rather than simply failing - to read such images). - New tools directory containing tools used to generate libpng code. - Fixed race conditions in parallel make builds. With higher degrees of - parallelism during 'make' the use of the same temporary file names such - as 'dfn*' can result in a race where a temporary file from one arm of the - build is deleted or overwritten in another arm. This changes the - temporary files for suffix rules to always use $* and ensures that the - non-suffix rules use unique file names. - -Version 1.6.0beta02 [December 21, 2011] - Correct configure builds where build and source directories are separate. - The include path of 'config.h' was erroneously made relative in pngvalid.c - in libpng 1.5.7. - -Version 1.6.0beta03 [December 22, 2011] - Start-up code size improvements, error handler flexibility. These changes - alter how the tricky allocation of the initial png_struct and png_info - structures are handled. png_info is now handled in pretty much the same - way as everything else, except that the allocations handle NULL return - silently. png_struct is changed in a similar way on allocation and on - deallocation a 'safety' error handler is put in place (which should never - be required). The error handler itself is changed to permit mismatches - in the application and libpng error buffer size; however, this means a - silent change to the API to return the jmp_buf if the size doesn't match - the size from the libpng compilation; libpng now allocates the memory and - this may fail. Overall these changes result in slight code size - reductions; however, this is a reduction in code that is always executed - so is particularly valuable. Overall on a 64-bit system the libpng DLL - decreases in code size by 1733 bytes. pngerror.o increases in size by - about 465 bytes because of the new functionality. - Added png_convert_to_rfc1123_buffer() and deprecated png_convert_to_rfc1123() - to avoid including a spurious buffer in the png_struct. - -Version 1.6.0beta04 [December 30, 2011] - Regenerated configure scripts with automake-1.11.2 - Eliminated png_info_destroy(). It is now used only in png.c and only calls - one other internal function and memset(). - Enabled png_get_sCAL_fixed() if floating point APIs are enabled. Previously - it was disabled whenever internal fixed point arithmetic was selected, - which meant it didn't exist even on systems where FP was available but not - preferred. - Added pngvalid.c compile time checks for const APIs. - Implemented 'restrict' for png_info and png_struct. Because of the way - libpng works both png_info and png_struct are always accessed via a - single pointer. This means adding C99 'restrict' to the pointer gives - the compiler some opportunity to optimize the code. This change allows - that. - Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper - location in configure.ac (Gilles Espinasse). - Changed png_memcpy to C assignment where appropriate. Changed all those - uses of png_memcpy that were doing a simple assignment to assignments - (all those cases where the thing being copied is a non-array C L-value). - Added some error checking to png_set_*() routines. - Removed the reference to the non-exported function png_memcpy() from - example.c. - Fixed the Visual C 64-bit build - it requires jmp_buf to be aligned, but - it had become misaligned. - Revised contrib/pngminus/pnm2png.c to avoid warnings when png_uint_32 - and unsigned long are of different sizes. - -Version 1.6.0beta05 [January 15, 2012] - Updated manual with description of the simplified API (copied from png.h) - Fix bug in pngerror.c: some long warnings were being improperly truncated - (CVE-2011-3464, bug introduced in libpng-1.5.3beta05). - -Version 1.6.0beta06 [January 24, 2012] - Added palette support to the simplified APIs. This commit - changes some of the macro definitions in png.h, app code - may need corresponding changes. - Increased the formatted warning buffer to 192 bytes. - Added color-map support to simplified API. This is an initial version for - review; the documentation has not yet been updated. - Fixed Min/GW uninstall to remove libpng.dll.a - -Version 1.6.0beta07 [January 28, 2012] - Eliminated Intel icc/icl compiler warnings. The Intel (GCC derived) - compiler issues slightly different warnings from those issued by the - current vesions of GCC. This eliminates those warnings by - adding/removing casts and small code rewrites. - Updated configure.ac from autoupdate: added --enable-werror option. - Also some layout regularization and removal of introduced tab characters - (replaced with 3-character indentation). Obsolete macros identified by - autoupdate have been removed; the replacements are all in 2.59 so - the pre-req hasn't been changed. --enable-werror checks for support - for -Werror (or the given argument) in the compiler. This mimics the - gcc configure option by allowing -Werror to be turned on safely; without - the option the tests written in configure itself fail compilation because - they cause compiler warnings. - Rewrote autogen.sh to run autoreconf instead of running tools one-by-one. - Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt and - set CMAKE_LIBRARY_OUTPUT_DIRECTORY to "lib" on all platforms (C. Yapp). - Freeze libtool files in the 'scripts' directory. This version of autogen.sh - attempts to dissuade people from running it when it is not, or should not, - be necessary. In fact, autogen.sh does not work when run in a libpng - directory extracted from a tar distribution anymore. You must run it in - a GIT clone instead. - Added two images to contrib/pngsuite (1-bit and 2-bit transparent grayscale), - and renamed three whose names were inconsistent with those in - pngsuite/README.txt. - -Version 1.6.0beta08 [February 1, 2012] - Fixed Image::colormap misalignment in pngstest.c - Check libtool/libtoolize version number (2.4.2) in configure.ac - Divide test-pngstest.sh into separate pngstest runs for basic and - transparent images. - Moved automake options to AM_INIT_AUTOMAKE in configure.ac - Added color-tests, silent-rules (Not yet implemented in Makefile.am) and - version checking to configure.ac - Improved pngstest speed by not doing redundant tests and add const to - the background parameter of png_image_finish_read. The --background - option is now done automagically only when required, so that commandline - option no longer exists. - Cleaned up pngpriv.h to consistently declare all functions and data. - Also eliminated PNG_CONST_DATA, which is apparently not needed but we - can't be sure until it is gone. - Added symbol prefixing that allows all the libpng external symbols - to be prefixed (suggested by Reuben Hawkins). - Updated "ftbb*.png" list in the owatcom and vstudio projects. - Fixed 'prefix' builds on clean systems. The generation of pngprefix.h - should not require itself. - Updated INSTALL to explain that autogen.sh must be run in a GIT clone, - not in a libpng directory extracted from a tar distribution. - -Version 1.6.0beta09 [February 1, 2012] - Reverted the prebuilt configure files to libpng-1.6.0beta05 condition. - -Version 1.6.0beta10 [February 3, 2012] - Added Z_SOLO for zlib-1.2.6+ and correct pngstest tests - Updated list of test images in CMakeLists.txt - Updated the prebuilt configure files to current condition. - Revised INSTALL information about autogen.sh; it works in tar distributions. - -Version 1.6.0beta11 [February 16, 2012] - Fix character count in pngstest command in projects/owatcom/pngstest.tgt - Revised test-pngstest.sh to report PASS/FAIL for each image. - Updated documentation about the simplified API. - Corrected estimate of error in libpng png_set_rgb_to_gray API. The API is - extremely inaccurate for sRGB conversions because it uses an 8-bit - intermediate linear value and it does not use the sRGB transform, so it - suffers from the known instability in gamma transforms for values close - to 0 (see Poynton). The net result is that the calculation has a maximum - error of 14.99/255; 0.5/255^(1/2.2). pngstest now uses 15 for the - permitted 8-bit error. This may still not be enough because of arithmetic - error. - Removed some unused arrays (with #ifdef) from png_read_push_finish_row(). - Fixed a memory overwrite bug in simplified read of RGB PNG with - non-linear gamma Also bugs in the error checking in pngread.c and changed - quite a lot of the checks in pngstest.c to be correct; either correctly - written or not over-optimistic. The pngstest changes are insufficient to - allow all possible RGB transforms to be passed; pngstest cmppixel needs - to be rewritten to make it clearer which errors it allows and then changed - to permit known inaccuracies. - Removed tests for no-longer-used *_EMPTY_PLTE_SUPPORTED from pngstruct.h - Fixed fixed/float API export conditionals. 1) If FIXED_POINT or - FLOATING_POINT options were switched off, png.h ended up with lone ';' - characters. This is not valid ANSI-C outside a function. The ';' - characters have been moved inside the definition of PNG_FP_EXPORT and - PNG_FIXED_EXPORT. 2) If either option was switched off, the declaration - of the corresponding functions were completely omitted, even though some - of them are still used internally. The result is still valid, but - produces warnings from gcc with some warning options (including -Wall). The - fix is to cause png.h to declare the functions with PNG_INTERNAL_FUNCTION - when png.h is included from pngpriv.h. - Check for invalid palette index while reading paletted PNG. When one is - found, issue a warning and increase png_ptr->num_palette accordingly. - Apps are responsible for checking to see if that happened. - -Version 1.6.0beta12 [February 18, 2012] - Do not increase num_palette on invalid_index. - Relocated check for invalid palette index to pngrtran.c, after unpacking - the sub-8-bit pixels. - Fixed CVE-2011-3026 buffer overrun bug. This bug was introduced when - iCCP chunk support was added at libpng-1.0.6. Deal more correctly with the - test on iCCP chunk length. Also removed spurious casts that may hide - problems on 16-bit systems. - -Version 1.6.0beta13 [February 24, 2012] - Eliminated redundant png_push_read_tEXt|zTXt|iTXt|unknown code from - pngpread.c and use the sequential png_handle_tEXt, etc., in pngrutil.c; - now that png_ptr->buffer is inaccessible to applications, the special - handling is no longer useful. - Added PNG_SAFE_LIMITS feature to pnglibconf.dfa, pngpriv.h, and new - pngusr.dfa to reset the user limits to safe ones if PNG_SAFE_LIMITS is - defined. To enable, use "CPPFLAGS=-DPNG_SAFE_LIMITS_SUPPORTED=1" on the - configure command or put #define PNG_SAFE_LIMITS_SUPPORTED in - pnglibconf.h.prebuilt and pnglibconf.h. - -Version 1.6.0beta14 [February 27, 2012] - Added information about the new limits in the manual. - Updated Makefile.in - -Version 1.6.0beta15 [March 2, 2012] - Removed unused "current_text" members of png_struct and the png_free() - of png_ptr->current_text from pngread.c - Rewrote pngstest.c for substantial speed improvement. - Fixed transparent pixel and 16-bit rgb tests in pngstest and removed a - spurious check in pngwrite.c - Added PNG_IMAGE_FLAG_FAST for the benefit of applications that store - intermediate files, or intermediate in-memory data, while processing - image data with the simplified API. The option makes the files larger - but faster to write and read. pngstest now uses this by default; this - can be disabled with the --slow option. - Improved pngstest fine tuning of error numbers, new test file generator. - The generator generates images that test the full range of sample values, - allow the error numbers in pngstest to be tuned and checked. makepng - also allows generation of images with extra chunks, although this is - still work-in-progress. - Added check for invalid palette index while reading. - Fixed some bugs in ICC profile writing. The code should now accept - all potentially valid ICC profiles and reject obviously invalid ones. - It now uses png_error() to do so rather than casually writing a PNG - without the necessary color data. - Removed whitespace from the end of lines in all source files and scripts. - -Version 1.6.0beta16 [March 6, 2012] - Relocated palette-index checking function from pngrutil.c to pngtrans.c - Added palette-index checking while writing. - Changed png_inflate() and calling routines to avoid overflow problems. - This is an intermediate check-in that solves the immediate problems and - introduces one performance improvement (avoiding a copy via png_ptr->zbuf.) - Further changes will be made to make ICC profile handling more secure. - Fixed build warnings (MSVC, GCC, GCC v3). Cygwin GCC with default options - declares 'index' as a global, causing a warning if it is used as a local - variable. GCC 64-bit warns about assigning a (size_t) (unsigned 64-bit) - to an (int) (signed 32-bit). MSVC, however, warns about using the - unary '-' operator on an unsigned value (even though it is well defined - by ANSI-C to be ~x+1). The padding calculation was changed to use a - different method. Removed the tests on png_ptr->pass. - Added contrib/libtests/tarith.c to test internal arithmetic functions from - png.c. This is a libpng maintainer program used to validate changes to the - internal arithmetic functions. - Made read 'inflate' handling like write 'deflate' handling. The read - code now claims and releases png_ptr->zstream, like the write code. - The bug whereby the progressive reader failed to release the zstream - is now fixed, all initialization is delayed, and the code checks for - changed parameters on deflate rather than always calling - deflatedEnd/deflateInit. - Validate the zTXt strings in pngvalid. - Added code to validate the windowBits value passed to deflateInit2(). - If the call to deflateInit2() is wrong a png_warning will be issued - (in fact this is harmless, but the PNG data produced may be sub-optimal). - -Version 1.6.0beta17 [March 10, 2012] - Fixed PNG_LIBPNG_BUILD_BASE_TYPE definition. - Reject all iCCP chunks after the first, even if the first one is invalid. - Deflate/inflate was reworked to move common zlib calls into single - functions [rw]util.c. A new shared keyword check routine was also added - and the 'zbuf' is no longer allocated on progressive read. It is now - possible to call png_inflate() incrementally. A warning is no longer - issued if the language tag or translated keyword in the iTXt chunk - has zero length. - If benign errors are disabled use maximum window on ancilliary inflate. - This works round a bug introduced in 1.5.4 where compressed ancillary - chunks could end up with a too-small windowBits value in the deflate - header. - -Version 1.6.0beta18 [March 16, 2012] - Issue a png_benign_error() instead of png_warning() about bad palette index. - In pngtest, treat benign errors as errors if "-strict" is present. - Fixed an off-by-one error in the palette index checking function. - Fixed a compiler warning under Cygwin (Windows-7, 32-bit system) - Revised example.c to put text strings in a temporary character array - instead of directly assigning string constants to png_textp members. - This avoids compiler warnings when -Wwrite-strings is enabled. - Added output flushing to aid debugging under Visual Studio. Unfortunately - this is necessary because the VS2010 output window otherwise simply loses - the error messages on error (they weren't flushed to the window before - the process exited, apparently!) - Added configuration support for benign errors and changed the read - default. Also changed some warnings in the iCCP and sRGB handling - from to benign errors. Configuration now makes read benign - errors warnings and write benign errors to errors by default (thus - changing the behavior on read). The simplified API always forces - read benign errors to warnings (regardless of the system default, unless - this is disabled in which case the simplified API can't be built.) - -Version 1.6.0beta19 [March 18, 2012] - Work around for duplicate row start calls; added warning messages. - This turns on PNG_FLAG_DETECT_UNINITIALIZED to detect app code that - fails to call one of the 'start' routines (not enabled in libpng-1.5 - because it is technically an API change, since it did normally work - before.) It also makes duplicate calls to png_read_start_row (an - internal function called at the start of the image read) benign, as - they were before changes to use png_inflate_claim. Somehow webkit is - causing this to happen; this is probably a mis-feature in the zlib - changes so this commit is only a work-round. - Removed erroneous setting of DETECT_UNINITIALIZED and added more - checks. The code now does a png_error if an attempt is made to do the - row initialization twice; this is an application error and it has - serious consequences because the transform data in png_struct is - changed by each call. - Added application error reporting and added chunk names to read - benign errors; also added --strict to pngstest - not enabled - yet because a warning is produced. - Avoid the double gamma correction warning in the simplified API. - This allows the --strict option to pass in the pngstest checks - -Version 1.6.0beta20 [March 29, 2012] - Changed chunk handler warnings into benign errors, incrementally load iCCP - Added checksum-icc.c to contrib/tools - Prevent PNG_EXPAND+PNG_SHIFT doing the shift twice. - Recognize known sRGB ICC profiles while reading; prefer writing the - iCCP profile over writing the sRGB chunk, controlled by the - PNG_sRGB_PROFILE_CHECKS option. - Revised png_set_text_2() to avoid potential memory corruption (fixes - CVE-2011-3048, also known as CVE-2012-3425). - -Version 1.6.0beta21 [April 27, 2012] - Revised scripts/makefile.darwin: use system zlib; remove quotes around - architecture list; add missing ppc architecture; add architecture options - to shared library link; don't try to create a shared lib based on missing - RELEASE variable. - Enable png_set_check_for_invalid_index() for both read and write. - Removed #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED in pngpriv.h around - declaration of png_handle_unknown(). - Added -lssp_nonshared in a comment in scripts/makefile.freebsd - and changed deprecated NOOBJ and NOPROFILE to NO_OBJ and NO_PROFILE. - -Version 1.6.0beta22 [May 23, 2012] - Removed need for -Wno-cast-align with clang. clang correctly warns on - alignment increasing pointer casts when -Wcast-align is passed. This - fixes the cases that clang warns about either by eliminating the - casts from png_bytep to png_uint_16p (pngread.c), or, for pngrutil.c - where the cast is previously verified or pngstest.c where it is OK, by - introducing new png_aligncast macros to do the cast in a way that clang - accepts. - -Version 1.6.0beta23 [June 6, 2012] - Revised CMakeLists.txt to not attempt to make a symlink under mingw. - Made fixes for new optimization warnings from gcc 4.7.0. The compiler - performs an optimization which is safe; however it then warns about it. - Changing the type of 'palette_number' in pngvalid.c removes the warning. - Do not depend upon a GCC feature macro being available for use in generating - the linker mapfile symbol prefix. - Improved performance of new do_check_palette_indexes() function (only - update the value when it actually increases, move test for whether - the check is wanted out of the function. - -Version 1.6.0beta24 [June 7, 2012] - Don't check palette indexes if num_palette is 0 (as it can be in MNG files). - -Version 1.6.0beta25 [June 16, 2012] - Revised png_set_keep_unknown_chunks() so num_chunks < 0 means ignore all - unknown chunks and all known chunks except for IHDR, PLTE, tRNS, IDAT, - and IEND. Previously it only meant ignore all unknown chunks, the - same as num_chunks == 0. Revised png_image_skip_unused_chunks() to - provide a list of chunks to be processed instead of a list of chunks to - ignore. Revised contrib/gregbook/readpng2.c accordingly. - -Version 1.6.0beta26 [July 10, 2012] - Removed scripts/makefile.cegcc from the *.zip and *.7z distributions; it - depends on configure, which is not included in those archives. - Moved scripts/chkfmt to contrib/tools. - Changed "a+w" to "u+w" in Makefile.in to fix CVE-2012-3386. - -Version 1.6.0beta27 [August 11, 2012] - Do not compile PNG_DEPRECATED, PNG_ALLOC and PNG_PRIVATE when __GNUC__ < 3. - Do not use __restrict when GNUC is <= 3.1 - Removed references to png_zalloc() and png_zfree() from the manual. - Fixed configurations where floating point is completely disabled. Because - of the changes to support symbol prefixing PNG_INTERNAL_FUNCTION declares - floating point APIs during libpng builds even if they are completely - disabled. This requires the png floating point types (png_double*) to be - declared even though the functions are never actually defined. This - change provides a dummy definition so that the declarations work, yet any - implementation will fail to compile because of an incomplete type. - Re-eliminated the use of strcpy() in pngtest.c. An unncessary use of - strcpy() was accidentally re-introduced in libpng16; this change replaces - it with strncpy(). - Eliminated use of png_sizeof(); use sizeof() instead. - Use a consistent style for (sizeof type) and (sizeof (array)) - Cleanup of png_set_filler(). This function does very different things on - read and write. In libpng 1.6 the two cases can be distinguished and - considerable code cleanup, and extra error checking, is possible. This - makes calls on the write side that have no effect be ignored with a - png_app_error(), which can be disabled in the app using - png_set_benign_errors(), and removes the spurious use of usr_channels - on the read side. - Insist on autotools 1.12.1 for git builds because there are security issues - with 1.12 and insisting on anything less would allow 1.12 to be used. - Removed info_ptr->signature[8] from WRITE-only builds. - Add some conditions for compiling png_fixed(). This is a small function - but it requires "-lm" on some platforms. - Cause pngtest --strict to fail on any warning from libpng (not just errors) - and cause it not to fail at the comparison step if libpng lacks support - for writing chunks that it reads from the input (currently only implemented - for compressed text chunks). - Make all three "make check" test programs work without READ or WRITE support. - Now "make check" will succeed even if libpng is compiled with -DPNG_NO_READ - or -DPNG_NO_WRITE. The tests performed are reduced, but the basic reading - and writing of a PNG file is always tested by one or more of the tests. - Consistently use strlen(), memset(), memcpy(), and memcmp() instead of the - png_strlen(), png_memset(), png_memcpy(), and png_memcmp() macros. - Removed the png_sizeof(), png_strlen(), png_memset(), png_memcpy(), and - png_memcmp() macros. - Work around gcc 3.x and Microsoft Visual Studio 2010 complaints. Both object - to the split initialization of num_chunks. - -Version 1.6.0beta28 [August 29, 2012] - Unknown handling fixes and clean up. This adds more correct option - control of the unknown handling, corrects the pre-existing bug where - the per-chunk 'keep' setting is ignored and makes it possible to skip - IDAT chunks in the sequential reader (broken in earlier 1.6 versions). - There is a new test program, test-unknown.c, which is a work in progress - (not currently part of the test suite). Comments in the header files now - explain how the unknown handling works. - Allow fine grain control of unknown chunk APIs. This change allows - png_set_keep_unknown_chunks() to be turned off if not required and causes - both read and write to behave appropriately (on read this is only possible - if the user callback is used to handle unknown chunks). The change - also removes the support for storing unknown chunks in the info_struct - if the only unknown handling enabled is via the callback, allowing libpng - to be configured with callback reading and none of the unnecessary code. - Corrected fix for unknown handling in pngtest. This reinstates the - libpng handling of unknown chunks other than vpAg and sTER (including - unsafe-to-copy chunks which were dropped before) and eliminates the - repositioning of vpAg and sTER in pngtest.png by changing pngtest.png - (so the chunks are where libpng would put them). - Added "tunknown" test and corrected a logic error in png_handle_unknown() - when SAVE support is absent. Moved the shell test scripts for - contrib/libtests from the libpng top directory to contrib/libtests. - png_handle_unknown() must always read or skip the chunk, if - SAVE_UNKNOWN_CHUNKS is turned off *and* the application does not set - a user callback an unknown chunk will not be read, leading to a read - error, which was revealed by the "tunknown" test. - Cleaned up and corrected ICC profile handling. - contrib/libtests/makepng: corrected 'rgb' and 'gray' cases. profile_error - messages could be truncated; made a correct buffer size calculation and - adjusted pngerror.c appropriately. png_icc_check_* checking improved; - changed the functions to receive the correct color type of the PNG on read - or write and check that it matches the color space of the profile (despite - what the comments said before, there is danger in assuming the app will - cope correctly with an RGB profile on a grayscale image and, since it - violates the PNG spec, allowing it is certain to produce inconsistent - app behavior and might even cause app crashes.) Check that profiles - contain the tags needed to process the PNG (tags all required by the ICC - spec). Removed unused PNG_STATIC from pngpriv.h. - -Version 1.6.0beta29 [September 4, 2012] - Fixed the simplified API example programs to add the *colormap parameter - to several of he API and improved the error message if the version field - is not set. - Added contrib/examples/* to the *.zip and *.7z distributions. - Updated simplified API synopses and description of the png_image structure - in the manual. - Made makepng and pngtest produce identical PNGs, add "--relaxed" option - to pngtest. The "--relaxed" option turns off the benign errors that are - enabled by default in pre-RC builds. makepng can now write ICC profiles - where the length has not been extended to a multiple of 4, and pngtest - now intercepts all libpng errors, allowing the previously-introduced - "--strict test" on no warnings to actually work. - Improved ICC profile handling including cHRM chunk generation and fixed - Cygwin+MSVC build errors. The ICC profile handling now includes more - checking. Several errors that caused rejection of the profile are now - handled with a warning in such a way that the invalid profiles will be - read by default in release (but not pre-RC) builds but will not be - written by default. The easy part of handling the cHRM chunk is written, - where the ICC profile contains the required data. The more difficult - part plus guessing a gAMA value requires code to pass selected RGB values - through the profile. - -Version 1.6.0beta30 [October 24, 2012] - Changed ICC profile matrix/vector types to not depend on array type rules. - By the ANSI-C standard the new types should be identical to the previous - versions, and all known versions of gcc tested with the previous versions - except for GCC-4.2.1 work with this version. The change makes the ANSI-C - rule that const applied to an array of elements applies instead to the - elements in the array moot by explicitly applying const to the base - elements of the png_icc_matrix and png_icc_vector types. The accidental - (harmless) 'const' previously applied to the parameters of two of the - functions have also been removed. - Added a work around for GCC 4.2 optimization bug. - Marked the broken (bad white point) original HP sRGB profiles correctly and - correct comments. - Added -DZ_SOLO to contrib/pngminim/*/makefile to work with zlib-1.2.7 - Use /MDd for vstudio debug builds. Also added pngunkown to the vstudio - builds, fixed build errors and corrected a minor exit code error in - pngvalid if the 'touch' file name is invalid. - Add updated WARNING file to projects/vstudio from libpng 1.5/vstudio - Fixed build when using #define PNG_NO_READ_GAMMA in png_do_compose() in - pngrtran.c (Domani Hannes). - -Version 1.6.0beta31 [November 1, 2012] - Undid the erroneous change to vstudio/pngvalid build in libpng-1.6.0beta30. - Made pngvalid so that it will build outside the libpng source tree. - Made builds -DPNG_NO_READ_GAMMA compile (the unit tests still fail). - Made PNG_NO_READ_GAMMA switch off interfaces that depend on READ_GAMMA. - Prior to 1.6.0 switching off READ_GAMMA did unpredictable things to the - interfaces that use it (specifically, png_do_background in 1.4 would - simply display composite for grayscale images but do composition - with the incorrect arithmetic for color ones). In 1.6 the semantic - of -DPNG_NO_READ_GAMMA is changed to simply disable any interface that - depends on it; this obliges people who set it to consider whether they - really want it off if they happen to use any of the interfaces in - question (typically most users who disable it won't). - Fixed GUIDs in projects/vstudio. Some were duplicated or missing, - resulting in VS2010 having to update the files. - Removed non-working ICC profile support code that was mostly added to - libpng-1.6.0beta29 and beta30. There was too much code for too little - gain; implementing full ICC color correction may be desireable but is left - up to applications. - -Version 1.6.0beta32 [November 25, 2012] - Fixed an intermittent SEGV in pngstest due to an uninitialized array element. - Added the ability for contrib/libtests/makepng.c to make a PNG with just one - color. This is useful for debugging pngstest color inaccuracy reports. - Fixed error checking in the simplified write API (Olaf van der Spek) - Made png_user_version_check() ok to use with libpng version 1.10.x and later. - -Version 1.6.0beta33 [December 15, 2012] - Fixed typo in png.c (PNG_SET_CHUNK_MALLOC_MAX should be PNG_CHUNK_MALLOC_MAX) - that causes the MALLOC_MAX limit not to work (John Bowler) - Change png_warning() to png_app_error() in pngwrite.c and comment the - fall-through condition. - Change png_warning() to png_app_warning() in png_write_tRNS(). - Rearranged the ARM-NEON optimizations: Isolated the machine specific code - to the hardware subdirectory and added comments to pngrutil.c so that - implementors of other optimizations know what to do. - Fixed cases of unquoted DESTDIR in Makefile.am - Rebuilt Makefile.in, etc., with autoconf-2.69 and automake-1.12.5. - -Version 1.6.0beta34 [December 19, 2012] - Cleaned up whitespace in the synopsis portion of the manpage "libpng.3" - Disassembled the version number in scripts/options.awk (necessary for - building on SunOs). - -Version 1.6.0beta35 [December 23, 2012] - Made default Zlib compression settings be configurable. This adds #defines to - pnglibconf.h to control the defaults. - Fixed Windows build issues, enabled ARM compilation. Various warnings issued - by earlier versions of GCC fixed for Cygwin and Min/GW (which both use old - GCCs.) ARM support is enabled by default in zlib.props (unsupported by - Microsoft) and ARM compilation is made possible by deleting the check for - x86. The test programs cannot be run because they are not signed. - -Version 1.6.0beta36 [January 2, 2013] - Discontinued distributing libpng-1.x.x.tar.bz2. - Discontinued distributing libpng-1.7.0-1.6.0-diff.txt and similar. - Rebuilt configure with autoconf-2.69 (inadvertently not done in beta33) - Fixed 'make distcheck' on SUN OS - libpng.so was not being removed - -Version 1.6.0beta37 [January 10, 2013] - Fixed conceivable but difficult to repro overflow. Also added two test - programs to generate and test a PNG which should have the problem. - -Version 1.6.0beta39 [January 19, 2013] - Again corrected attempt at overflow detection in png_set_unknown_chunks() - (CVE-2013-7353). Added overflow detection in png_set_sPLT() and - png_set_text_2() (CVE-2013-7354). - -Version 1.6.0beta40 [January 20, 2013] - Use consistent handling of overflows in text, sPLT and unknown png_set_* APIs - -Version 1.6.0rc01 [January 26, 2013] - No changes. - -Version 1.6.0rc02 [February 4, 2013] - Added png_get_palette_max() function. - -Version 1.6.0rc03 [February 5, 2013] - Fixed the png_get_palette_max API. - -Version 1.6.0rc04 [February 7, 2013] - Turn serial tests back on (recently turned off by autotools upgrade). - -Version 1.6.0rc05 [February 8, 2013] - Update manual about png_get_palette_max(). - -Version 1.6.0rc06 [February 9, 2013] - Fixed missing dependency in --prefix builds The intermediate - internal 'prefix.h' file can only be generated correctly after - pnglibconf.h, however the dependency was not in Makefile.am. The - symptoms are unpredictable depending on the order make chooses to - build pngprefix.h and pnglibconf.h, often the error goes unnoticed - because there is a system pnglibconf.h to use instead. - -Version 1.6.0rc07 [February 10, 2013] - Enclosed the new png_get_palette_max in #ifdef PNG_GET_PALETTE_MAX_SUPPORTED - block, and revised pnglibconf.h and pnglibconf.h.prebuilt accordingly. - -Version 1.6.0rc08 [February 10, 2013] - Fix typo in png.h #ifdef - -Version 1.6.0 [February 14, 2013] - No changes. - -Version 1.6.1beta01 [February 16, 2013] - Made symbol prefixing work with the ARM neon optimizations. Also allow - pngpriv.h to be included for preprocessor definitions only, so it can - be used in non-C/C++ files. Back ported from libpng 1.7. - Made sRGB check numbers consistent. - Ported libpng 1.5 options.awk/dfn file handling to 1.6, fixed one bug. - Removed cc -E workround, corrected png_get_palette_max API Tested on - SUN OS cc 5.9, which demonstrates the tokenization problem previously - avoided by using /lib/cpp. Since all .dfn output is now protected in - double quotes unless it is to be macro substituted the fix should - work everywhere. - Enabled parallel tests - back ported from libpng-1.7. - scripts/pnglibconf.dfa formatting improvements back ported from libpng17. - Fixed a race condition in the creation of the build 'scripts' directory - while building with a parallel make. - Use approved/supported Android method to check for NEON, use Linux/POSIX - 1003.1 API to check /proc/self/auxv avoiding buffer allocation and other - library calls (ported from libpng15). - -Version 1.6.1beta02 [February 19, 2013] - Use parentheses more consistently in "#if defined(MACRO)" tests. - Folded long lines. - Reenabled code to allow zero length PLTE chunks for MNG. - -Version 1.6.1beta03 [February 22, 2013] - Fixed ALIGNED_MEMORY support. - Allow run-time ARM NEON checking to be disabled. A new configure option: - --enable-arm-neon=always will stop the run-time checks. New checks - within arm/arm_init.c will cause the code not to be compiled unless - __ARM_NEON__ is set. This should make it fail safe (if someone asks - for it on then the build will fail if it can't be done.) - Updated the INSTALL document. - -Version 1.6.1beta04 [February 27, 2013] - Revised INSTALL to recommend using CPPFLAGS instead of INCLUDES. - Revised scripts/makefile.freebsd to respect ZLIBLIB and ZLIBINC. - Revised scripts/dfn.awk to work with the buggy MSYS awk that has trouble - with CRLF line endings. - -Version 1.6.1beta05 [March 1, 2013] - Avoid a possible memory leak in contrib/gregbook/readpng.c - -Version 1.6.1beta06 [March 4, 2013] - Better documentation of unknown handling API interactions. - Corrected Android builds and corrected libpng.vers with symbol - prefixing This adds an API to set optimization options externally, - providing an alternative and general solution for the non-portable - run-time tests used by the ARM Neon code. It also makes those tests - compile and link on Android. - The order of settings vs options in pnglibconf.h is reversed to allow - settings to depend on options and options can now set (or override) the - defaults for settings. - -Version 1.6.1beta07 [March 7, 2013] - Corrected simplified API default gamma for color-mapped output, added - a flag to change default. In 1.6.0 when the simplified API was used - to produce color-mapped output from an input image with no gamma - information the gamma assumed for the input could be different from - that assumed for non-color-mapped output. In particular 16-bit depth - input files were assumed to be sRGB encoded, whereas in the 'direct' - case they were assumed to have linear data. This was an error. The - fix makes the simplified API treat all input files the same way and - adds a new flag to the png_image::flags member to allow the - application/user to specify that 16-bit files contain sRGB data - rather than the default linear. - Fixed bugs in the pngpixel and makepng test programs. - -Version 1.6.1beta08 [March 7, 2013] - Fixed CMakelists.txt to allow building a single variant of the library - (Claudio Bley): - Introduced a PNG_LIB_TARGETS variable that lists all activated library - targets. It is an error if this variable ends up empty, ie. you have - to build at least one library variant. - Made the *_COPY targets only depend on library targets actually being build. - Use PNG_LIB_TARGETS to unify a code path. - Changed the CREATE_SYMLINK macro to expect the full path to a file as the - first argument. When symlinking the filename component of that path is - determined and used as the link target. - Use copy_if_different in the CREATE_SYMLINK macro. - -Version 1.6.1beta09 [March 13, 2013] - Eliminated two warnings from the Intel C compiler. The warnings are - technically valid, although a reasonable treatment of division would - show it to be incorrect. - -Version 1.6.1rc01 [March 21, 2013] - No changes. - -Version 1.6.1 [March 28, 2013] - No changes. - -Version 1.6.2beta01 [April 14, 2013] - Updated documentation of 1.5.x to 1.6.x changes in iCCP chunk handling. - Fixed incorrect warning of excess deflate data. End condition - the - warning would be produced if the end of the deflate stream wasn't read - in the last row. The warning is harmless. - Corrected the test on user transform changes on read. It was in the - png_set of the transform function, but that doesn't matter unless the - transform function changes the rowbuf size, and that is only valid if - transform_info is called. - Corrected a misplaced closing bracket in contrib/libtests/pngvalid.c - (Flavio Medeiros). - Corrected length written to uncompressed iTXt chunks (Samuli Suominen). - Bug was introduced in libpng-1.6.0. - -Version 1.6.2rc01 [April 18, 2013] - Added contrib/tools/fixitxt.c, to repair the erroneous iTXt chunk length - written by libpng-1.6.0 and 1.6.1. - Disallow storing sRGB information when the sRGB is not supported. - -Version 1.6.2rc02 [April 18, 2013] - Merge pngtest.c with libpng-1.7.0 - -Version 1.6.2rc03 [April 22, 2013] - Trivial spelling cleanup. - -Version 1.6.2rc04 and 1.6.2rc05 [omitted] - -Version 1.6.2rc06 [April 24, 2013] - Reverted to version 1.6.2rc03. Recent changes to arm/neon support - have been ported to libpng-1.7.0beta09 and will reappear in version - 1.6.3beta01. - -Version 1.6.2 [April 25, 2013] - No changes. - -Version 1.6.3beta01 [April 25, 2013] - Revised stack marking in arm/filter_neon.S and configure.ac. - Ensure that NEON filter stuff is completely disabled when switched 'off'. - Previously the ARM NEON specific files were still built if the option - was switched 'off' as opposed to being explicitly disabled. - -Version 1.6.3beta02 [April 26, 2013] - Test for 'arm*' not just 'arm' in the host_cpu configure variable. - Rebuilt the configure scripts. - -Version 1.6.3beta03 [April 30, 2013] - Expanded manual paragraph about writing private chunks, particularly - the need to call png_set_keep_unknown_chunks() when writing them. - Avoid dereferencing NULL pointer possibly returned from - png_create_write_struct() (Andrew Church). - -Version 1.6.3beta05 [May 9, 2013] - Calculate our own zlib windowBits when decoding rather than trusting the - CMF bytes in the PNG datastream. - Added an option to force maximum window size for inflating, which was - the behavior of libpng15 and earlier. - Added png-fix-itxt and png-fix-too-far-back to the built programs and - removed warnings from the source code and timepng that are revealed as - a result. - Detect wrong libpng versions linked to png-fix-too-far-back, which currently - only works with libpng versions that can be made to reliably fail when - the deflate data contains an out-of-window reference. This means only - 1.6 and later. - Fixed gnu issues: g++ needs a static_cast, gcc 4.4.7 has a broken warning - message which it is easier to work round than ignore. - Updated contrib/pngminus/pnm2png.c (Paul Stewart): - Check for EOF - Ignore "#" delimited comments in input file to pnm2png.c. - Fixed whitespace handling - Added a call to png_set_packing() - Initialize dimension values so if sscanf fails at least we have known - invalid values. - Attempt to detect configuration issues with png-fix-too-far-back, which - requires both the correct libpng and the correct zlib to function - correctly. - Check ZLIB_VERNUM for mismatches, enclose #error in quotes - Added information in the documentation about problems with and fixes for - the bad CRC and bad iTXt chunk situations. - -Version 1.6.3beta06 [May 12, 2013] - Allow contrib/pngminus/pnm2png.c to compile without WRITE_INVERT and - WRITE_PACK supported (writes error message that it can't read P1 or - P4 PBM files). - Improved png-fix-too-far-back usage message, added --suffix option. - Revised contrib/pngminim/*/makefile to generate pnglibconf.h with the - right zlib header files. - Separated CPPFLAGS and CFLAGS in contrib/pngminim/*/makefile - -Version 1.6.3beta07 [June 8, 2013] - Removed a redundant test in png_set_IHDR(). - Added set(CMAKE_CONFIGURATION_TYPES ...) to CMakeLists.txt (Andrew Hundt) - Deleted set(CMAKE_BUILD_TYPE) block from CMakeLists.txt - Enclose the prototypes for the simplified write API in - #ifdef PNG_STDIO_SUPPORTED/#endif - Make ARM NEON support work at compile time (not just configure time). - This moves the test on __ARM_NEON__ into pngconf.h to avoid issues when - using a compiler that compiles for multiple architectures at one time. - Removed PNG_FILTER_OPTIMIZATIONS and PNG_ARM_NEON_SUPPORTED from - pnglibconf.h, allowing more of the decisions to be made internally - (pngpriv.h) during the compile. Without this, symbol prefixing is broken - under certain circumstances on ARM platforms. Now only the API parts of - the optimizations ('check' vs 'api') are exposed in the public header files - except that the new setting PNG_ARM_NEON_OPT documents how libpng makes the - decision about whether or not to use the optimizations. - Protect symbol prefixing against CC/CPPFLAGS/CFLAGS useage. - Previous iOS/Xcode fixes for the ARM NEON optimizations moved the test - on __ARM_NEON__ from configure time to compile time. This breaks symbol - prefixing because the definition of the special png_init_filter_functions - call was hidden at configure time if the relevant compiler arguments are - passed in CFLAGS as opposed to CC. This change attempts to avoid all - the confusion that would result by declaring the init function even when - it is not used, so that it will always get prefixed. - -Version 1.6.3beta08 [June 18, 2013] - Revised libpng.3 so that "doclifter" can process it. - -Version 1.6.3beta09 [June 27, 2013] - Revised example.c to illustrate use of PNG_DEFAULT_sRGB and PNG_GAMMA_MAC_18 - as parameters for png_set_gamma(). These have been available since - libpng-1.5.4. - Renamed contrib/tools/png-fix-too-far-back.c to pngfix.c and revised it - to check all compressed chunks known to libpng. - -Version 1.6.3beta10 [July 5, 2013] - Updated documentation to show default behavior of benign errors correctly. - Only compile ARM code when PNG_READ_SUPPORTED is defined. - Fixed undefined behavior in contrib/tools/pngfix.c and added new strip - option. pngfix relied on undefined behavior and even a simple change from - gcc to g++ caused it to fail. The new strip option 'unsafe' has been - implemented and is the default if --max is given. Option names have - been clarified, with --strip=transform now stripping the bKGD chunk, - which was stripped previously with --strip=unused. - Added all documented chunk types to pngpriv.h - Unified pngfix.c source with libpng17. - -Version 1.6.3rc01 [July 11, 2013] - No changes. - -Version 1.6.3 [July 18, 2013] - Revised manual about changes in iTXt chunk handling made in libpng-1.6.0. - Added "/* SAFE */" comments in pngrutil.c and pngrtran.c where warnings - may be erroneously issued by code-checking applications. - -Version 1.6.4beta01 [August 21, 2013] - Added information about png_set_options() to the manual. - Delay calling png_init_filter_functions() until a row with nonzero filter - is found. - -Version 1.6.4beta02 [August 30, 2013] - Fixed inconsistent conditional compilation of png_chunk_unknown_handling() - prototype, definition, and usage. Made it depend on - PNG_HANDLE_AS_UNKNOWN_SUPPORTED everywhere. - -Version 1.6.4rc01 [September 5, 2013] - No changes. - -Version 1.6.4 [September 12, 2013] - No changes. - -Version 1.6.5 [September 14, 2013] - Removed two stray lines of code from arm/arm_init.c. - -Version 1.6.6 [September 16, 2013] - Removed two stray lines of code from arm/arm_init.c, again. - -Version 1.6.7beta01 [September 30, 2013] - Revised unknown chunk code to correct several bugs in the NO_SAVE_/NO_WRITE - combination - Allow HANDLE_AS_UNKNOWN to work when other options are configured off. Also - fixed the pngminim makefiles to work when $(MAKEFLAGS) contains stuff - which terminates the make options (as by default in recent versions of - Gentoo). - Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of - png_modifier are greater than that of png_store and as a consequence - compilation of pngvalid.c results in a warning about increased alignment - requirements because of the bare cast to (png_modifier*). The code is safe, - because the pointer is known to point to a stack allocated png_modifier, - but this change avoids the warning. - Fixed default behavior of ARM_NEON_API. If the ARM NEON API option was - compiled without the CHECK option it defaulted to on, not off. - Check user callback behavior in pngunknown.c. Previous versions compiled - if SAVE_UNKNOWN was not available but did nothing since the callback - was never implemented. - Merged pngunknown.c with 1.7 version and back ported 1.7 improvements/fixes - -Version 1.6.7beta02 [October 12, 2013] - Made changes for compatibility with automake 1.14: - 1) Added the 'compile' program to the list of programs that must be cleaned - in autogen.sh - 2) Added 'subdir-objects' which causes .c files in sub-directories to be - compiled such that the corresponding .o files are also in the - sub-directory. This is because automake 1.14 warns that the - current behavior of compiling to the top level directory may be removed - in the future. - 3) Updated dependencies on pnglibconf.h to match the new .o locations and - added all the files in contrib/libtests and contrib/tools that depend - on pnglibconf.h - 4) Added 'BUILD_SOURCES = pnglibconf.h'; this is the automake recommended - way of handling the dependencies of sources that are machine generated; - unfortunately it only works if the user does 'make all' or 'make check', - so the dependencies (3) are still required. - Cleaned up (char*) casts of zlib messages. The latest version of the Intel C - compiler complains about casting a string literal as (char*), so copied the - treatment of z_const from the library code into pngfix.c - Simplified error message code in pngunknown. The simplification has the - useful side effect of avoiding a bogus warning generated by the latest - version of the Intel C compiler (it objects to - condition ? string-literal : string-literal). - Make autogen.sh work with automake 1.13 as well as 1.14. Do this by always - removing the 1.14 'compile' script but never checking for it. - -Version 1.6.7beta03 [October 19, 2013] - Added ARMv8 support (James Yu ). Added file - arm/filter_neon_intrinsics.c; enable with -mfpu=neon. - Revised pngvalid to generate size images with as many filters as it can - manage, limited by the number of rows. - Cleaned up ARM NEON compilation handling. The tests are now in pngpriv.h - and detect the broken GCC compilers. - -Version 1.6.7beta04 [October 26, 2013] - Allow clang derived from older GCC versions to use ARM intrinsics. This - causes all clang builds that use -mfpu=neon to use the intrinsics code, - not the assembler code. This has only been tested on iOS 7. It may be - necessary to exclude some earlier clang versions but this seems unlikely. - Changed NEON implementation selection mechanism. This allows assembler - or intrinsics to be turned on at compile time during the build by defining - PNG_ARM_NEON_IMPLEMENTATION to the correct value (2 or 1). This macro - is undefined by default and the build type is selected in pngpriv.h. - -Version 1.6.7rc01 [November 2, 2013] - No changes. - -Version 1.6.7rc02 [November 7, 2013] - Fixed #include in filter_neon_intrinsics.c and ctype macros. The ctype char - checking macros take an unsigned char argument, not a signed char. - -Version 1.6.7 [November 14, 2013] - No changes. - -Version 1.6.8beta01 [November 24, 2013] - Moved prototype for png_handle_unknown() in pngpriv.h outside of - the #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED/#endif block. - Added "-Wall" to CFLAGS in contrib/pngminim/*/makefile - Conditionally compile some unused functions reported by -Wall in - pngminim. - Fixed 'minimal' builds. Various obviously useful minimal configurations - don't build because of missing contrib/libtests test programs and - overly complex dependencies in scripts/pnglibconf.dfa. This change - adds contrib/conftest/*.dfa files that can be used in automatic build - scripts to ensure that these configurations continue to build. - Enabled WRITE_INVERT and WRITE_PACK in contrib/pngminim/encoder. - Fixed pngvalid 'fail' function declaration on the Intel C Compiler. - This reverts to the previous 'static' implementation and works round - the 'unused static function' warning by using PNG_UNUSED(). - -Version 1.6.8beta02 [November 30, 2013] - Removed or marked PNG_UNUSED some harmless "dead assignments" reported - by clang scan-build. - Changed tabs to 3 spaces in png_debug macros and changed '"%s"m' - to '"%s" m' to improve portability among compilers. - Changed png_free_default() to free() in pngtest.c - -Version 1.6.8rc01 [December 12, 2013] - Tidied up pngfix inits and fixed pngtest no-write builds. - -Version 1.6.8rc02 [December 14, 2013] - Handle zero-length PLTE chunk or NULL palette with png_error() - instead of png_chunk_report(), which by default issues a warning - rather than an error, leading to later reading from a NULL pointer - (png_ptr->palette) in png_do_expand_palette(). This is CVE-2013-6954 - and VU#650142. Libpng-1.6.1 through 1.6.7 are vulnerable. - Libpng-1.6.0 and earlier do not have this bug. - -Version 1.6.8 [December 19, 2013] - No changes. - -Version 1.6.9beta01 [December 26, 2013] - Bookkeeping: Moved functions around (no changes). Moved transform - function definitions before the place where they are called so that - they can be made static. Move the intrapixel functions and the - grayscale palette builder out of the png?tran.c files. The latter - isn't a transform function and is no longer used internally, and the - former MNG specific functions are better placed in pngread/pngwrite.c - Made transform implementation functions static. This makes the internal - functions called by png_do_{read|write}_transformations static. On an - x86-64 DLL build (Gentoo Linux) this reduces the size of the text - segment of the DLL by 1208 bytes, about 0.6%. It also simplifies - maintenance by removing the declarations from pngpriv.h and allowing - easier changes to the internal interfaces. - Rebuilt configure scripts with automake-1.14.1 and autoconf-2.69 - in the tar distributions. - -Version 1.6.9beta02 [January 1, 2014] - Added checks for libpng 1.5 to pngvalid.c. This supports the use of - this version of pngvalid in libpng 1.5 - Merged with pngvalid.c from libpng-1.7 changes to create a single - pngvalid.c - Removed #error macro from contrib/tools/pngfix.c (Thomas Klausner). - Merged pngrio.c, pngtrans.c, pngwio.c, and pngerror.c with libpng-1.7.0 - Merged libpng-1.7.0 changes to make no-interlace configurations work - with test programs. - Revised pngvalid.c to support libpng 1.5, which does not support the - PNG_MAXIMUM_INFLATE_WINDOW option, so #define it out when appropriate in - pngvalid.c - Allow unversioned links created on install to be disabled in configure. - In configure builds 'make install' changes/adds links like png.h - and libpng.a to point to the newly installed, versioned, files (e.g. - libpng17/png.h and libpng17.a). Three new configure options and some - rearrangement of Makefile.am allow creation of these links to be disabled. - -Version 1.6.9beta03 [January 10, 2014] - Removed potentially misleading warning from png_check_IHDR(). - -Version 1.6.9beta04 [January 20, 2014] - Updated scripts/makefile.* to use CPPFLAGS (Cosmin). - Added clang attribute support (Cosmin). - -Version 1.6.9rc01 [January 28, 2014] - No changes. - -Version 1.6.9rc02 [January 30, 2014] - Quiet an uninitialized memory warning from VC2013 in png_get_png(). - -Version 1.6.9 [February 6, 2014] - -Version 1.6.10beta01 [February 9, 2014] - Backported changes from libpng-1.7.0beta30 and beta31: - Fixed a large number of instances where PNGCBAPI was omitted from - function definitions. - Added pngimage test program for png_read_png() and png_write_png() - with two new test scripts. - Removed dependence on !PNG_READ_EXPAND_SUPPORTED for calling - png_set_packing() in png_read_png(). - Fixed combination of ~alpha with shift. On read invert alpha, processing - occurred after shift processing, which causes the final values to be - outside the range that should be produced by the shift. Reversing the - order on read makes the two transforms work together correctly and mirrors - the order used on write. - Do not read invalid sBIT chunks. Previously libpng only checked sBIT - values on write, so a malicious PNG writer could therefore cause - the read code to return an invalid sBIT chunk, which might lead to - application errors or crashes. Such chunks are now skipped (with - chunk_benign_error). - Make png_read_png() and png_write_png() prototypes in png.h depend - upon PNG_READ_SUPPORTED and PNG_WRITE_SUPPORTED. - Support builds with unsupported PNG_TRANSFORM_* values. All of the - PNG_TRANSFORM_* values are always defined in png.h and, because they - are used for both read and write in some cases, it is not reliable - to #if out ones that are totally unsupported. This change adds error - detection in png_read_image() and png_write_image() to do a - png_app_error() if the app requests something that cannot be done - and it adds corresponding code to pngimage.c to handle such options - by not attempting to test them. - -Version 1.6.10beta02 [February 23, 2014] - Moved redefines of png_error(), png_warning(), png_chunk_error(), - and png_chunk_warning() from pngpriv.h to png.h to make them visible - to libpng-calling applications. - Moved OS dependent code from arm/arm_init.c, to allow the included - implementation of the ARM NEON discovery function to be set at - build-time and provide sample implementations from the current code in the - contrib/arm-neon subdirectory. The __linux__ code has also been changed to - compile and link on Android by using /proc/cpuinfo, and the old linux code - is in contrib/arm-neon/linux-auxv.c. The new code avoids POSIX and Linux - dependencies apart from opening /proc/cpuinfo and is C90 compliant. - Check for info_ptr == NULL early in png_read_end() so we don't need to - run all the png_handle_*() and depend on them to return if info_ptr == NULL. - This improves the performance of png_read_end(png_ptr, NULL) and makes - it more robust against future programming errors. - Check for __has_extension before using it in pngconf.h, to - support older Clang versions (Jeremy Sequoia). - Treat CRC error handling with png_set_crc_action(), instead of with - png_set_benign_errors(), which has been the case since libpng-1.6.0beta18. - Use a user warning handler in contrib/gregbook/readpng2.c instead of default, - so warnings will be put on stderr even if libpng has CONSOLE_IO disabled. - Added png_ptr->process_mode = PNG_READ_IDAT_MODE in png_push_read_chunk - after recognizing the IDAT chunk, which avoids an infinite loop while - reading a datastream whose first IDAT chunk is of zero-length. - This fixes CERT VU#684412 and CVE-2014-0333. - Don't recognize known sRGB profiles as sRGB if they have been hacked, - but don't reject them and don't issue a copyright violation warning. - -Version 1.6.10beta03 [February 25, 2014] - Moved some documentation from png.h to libpng.3 and libpng-manual.txt - Minor editing of contrib/arm-neon/README and contrib/examples/*.c - -Version 1.6.10rc01 [February 27, 2014] - Fixed typos in the manual and in scripts/pnglibconf.dfa (CFLAGS -> CPPFLAGS - and PNG_USR_CONFIG -> PNG_USER_CONFIG). - -Version 1.6.10rc02 [February 28, 2014] - Removed unreachable return statement after png_chunk_error() - in pngrutil.c - -Version 1.6.10rc03 [March 4, 2014] - Un-deprecated png_data_freer(). - -Version 1.6.10 [March 6, 2014] - No changes. - -Version 1.6.11beta01 [March 17, 2014] - Use "if (value != 0)" instead of "if (value)" consistently. - Changed ZlibSrcDir from 1.2.5 to 1.2.8 in projects/vstudio. - Moved configuration information from the manual to the INSTALL file. - -Version 1.6.11beta02 [April 6, 2014] - Removed #if/#else/#endif from inside two pow() calls in pngvalid.c because - they were handled improperly by Portland Group's PGI-14.1 - PGI-14.3 - when using its "__builtin_pow()" function. - Silence 'unused parameter' build warnings (Cosmin Truta). - $(CP) is now used alongside $(RM_F). Also, use 'copy' instead of 'cp' - where applicable, and applied other minor makefile changes (Cosmin). - Don't warn about invalid dimensions exceeding user limits (Cosmin). - Allow an easy replacement of the default pre-built configuration - header with a custom header, via the make PNGLIBCONF_H_PREBUILT - macro (Cosmin). - -Version 1.6.11beta03 [April 6, 2014] - Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that interferes - with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss). - Optionally use __builtin_bswap16() in png_do_swap(). - -Version 1.6.11beta04 [April 19, 2014] - Made progressive reading of interlaced images consistent with the - behavior of the sequential reader and consistent with the manual, by - moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks. The - row_callback now receives the proper pass number and unexpanded rows, when - png_combine_row() isn't built or used, and png_set_interlace_handling() - is not called. - Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking. - -Version 1.6.11beta05 [April 26, 2014] - Do not reject ICC V2 profiles that lack padding (Kai-Uwe Behrmann). - Relocated closing bracket of the sRGB profile test loop to avoid getting - "Not recognizing known sRGB profile that has been edited" warning for - ICC V2 profiles that lack the MD5 signature in the profile header. - -Version 1.6.11beta06 [May 19, 2014] - Added PNG_SKIP_sRGB_CHECK_PROFILE choice for png_set_option(). - -Version 1.6.11rc01 [May 27, 2014] - No changes. - -Version 1.6.11rc02 [June 3, 2014] - Test ZLIB_VERNUM instead of PNG_ZLIB_VERNUM in contrib/tools/pngfix.c - -Version 1.6.11 [June 5, 2014] - No changes. - -Version 1.6.12rc01 [June 6, 2014] - Relocated new code from 1.6.11beta06 in png.c to a point after the - declarations (Max Stepin). - -Version 1.6.12rc02 [June 7, 2014] - Changed file permissions of contrib/tools/intgamma.sh, - test-driver, and compile from 0644 to 0755 (Cosmin). - -Version 1.6.12rc03 [June 8, 2014] - Ensure "__has_attribute()" macro exists before trying to use it with - old clang compilers (MacPorts Ticket #43939). - -Version 1.6.12 [June 12, 2014] - No changes. - -Send comments/corrections/commendations to png-mng-implement at lists.sf.net -(subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) -or to glennrp at users.sourceforge.net - -Glenn R-P -#endif diff --git a/png/CMakeLists.txt b/png/CMakeLists.txt deleted file mode 100755 index f74147b..0000000 --- a/png/CMakeLists.txt +++ /dev/null @@ -1,364 +0,0 @@ -# CMakeLists.txt - -# Copyright (C) 2007-2013 Glenn Randers-Pehrson - -# This code is released under the libpng license. -# For conditions of distribution and use, see the disclaimer -# and license in png.h - -cmake_minimum_required(VERSION 2.4.4) -set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true) - -set(CMAKE_CONFIGURATION_TYPES "Release;Debug;MinSizeRel;RelWithDebInfo") - -project(libpng C) -enable_testing() - -set(PNGLIB_MAJOR 1) -set(PNGLIB_MINOR 6) -set(PNGLIB_RELEASE 12) -set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) -set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE}) - -# needed packages -find_package(ZLIB REQUIRED) -include_directories(${ZLIB_INCLUDE_DIR}) - -if(NOT WIN32) - find_library(M_LIBRARY - NAMES m - PATHS /usr/lib /usr/local/lib - ) - if(NOT M_LIBRARY) - message(STATUS - "math library 'libm' not found - floating point support disabled") - endif() -else() - # not needed on windows - set(M_LIBRARY "") -endif() - -# COMMAND LINE OPTIONS -if(DEFINED PNG_SHARED) - option(PNG_SHARED "Build shared lib" ${PNG_SHARED}) -else() - option(PNG_SHARED "Build shared lib" ON) -endif() -if(DEFINED PNG_STATIC) - option(PNG_STATIC "Build static lib" ${PNG_STATIC}) -else() - option(PNG_STATIC "Build static lib" ON) -endif() - -option(PNG_TESTS "Build libpng tests" YES) - -# Many more configuration options could be added here -option(PNG_DEBUG "Build with debug output" NO) -option(PNGARG "Disable ANSI-C prototypes" NO) - -# SET LIBNAME -set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR}) - -# to distinguish between debug and release lib -set(CMAKE_DEBUG_POSTFIX "d") - -# Use the prebuilt pnglibconf.h file from the scripts folder -# TODO: fix this by building with awk; without this no cmake build can be -# configured directly (to do so indirectly use your local awk to build a -# pnglibconf.h in the build directory.) -configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/pnglibconf.h.prebuilt - ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h) -include_directories(${CMAKE_CURRENT_BINARY_DIR}) - -# OUR SOURCES -set(libpng_public_hdrs - png.h - pngconf.h - ${CMAKE_CURRENT_BINARY_DIR}/pnglibconf.h -) -set(libpng_sources - ${libpng_public_hdrs} - pngdebug.h - pnginfo.h - pngpriv.h - pngstruct.h - png.c - pngerror.c - pngget.c - pngmem.c - pngpread.c - pngread.c - pngrio.c - pngrtran.c - pngrutil.c - pngset.c - pngtrans.c - pngwio.c - pngwrite.c - pngwtran.c - pngwutil.c -) -set(pngtest_sources - pngtest.c -) -set(pngvalid_sources - contrib/libtests/pngvalid.c -) -set(pngstest_sources - contrib/libtests/pngstest.c -) -# SOME NEEDED DEFINITIONS - -if(MSVC) - add_definitions(-D_CRT_SECURE_NO_DEPRECATE) -endif(MSVC) - -if(PNG_DEBUG) - add_definitions(-DPNG_DEBUG) -endif() - -# NOW BUILD OUR TARGET -include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR}) - -unset(PNG_LIB_TARGETS) - -if(PNG_SHARED) - add_library(${PNG_LIB_NAME} SHARED ${libpng_sources}) - set(PNG_LIB_TARGETS ${PNG_LIB_NAME}) - if(MSVC) - # msvc does not append 'lib' - do it here to have consistent name - set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib") - set_target_properties(${PNG_LIB_NAME} PROPERTIES IMPORT_PREFIX "lib") - endif() - target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY}) -endif() - -if(PNG_STATIC) -# does not work without changing name - set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static) - add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources}) - list(APPEND PNG_LIB_TARGETS ${PNG_LIB_NAME_STATIC}) - if(MSVC) - # msvc does not append 'lib' - do it here to have consistent name - set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib") - endif() - target_link_libraries(${PNG_LIB_NAME_STATIC} ${ZLIB_LIBRARY} ${M_LIBRARY}) -endif() - -if(NOT PNG_LIB_TARGETS) - message(SEND_ERROR - "No library variant selected to build. " - "Please enable at least one of the following options: PNG_STATIC, PNG_SHARED") -endif() - -if(PNG_SHARED AND WIN32) - set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) -endif() - -if(PNG_TESTS AND PNG_SHARED) - # does not work with msvc due to png_lib_ver issue - add_executable(pngtest ${pngtest_sources}) - target_link_libraries(pngtest ${PNG_LIB_NAME}) - add_test(pngtest ./pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png) - # - add_executable(pngvalid ${pngvalid_sources}) - target_link_libraries(pngvalid ${PNG_LIB_NAME}) - add_test(pngvalid ./pngvalid) - add_executable(pngstest ${pngstest_sources}) - target_link_libraries(pngstest ${PNG_LIB_NAME}) - add_test(pngstest ./pngstest - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g01.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g02.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g04.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn0g16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn2c16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p01.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p02.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p04.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn4a16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/basn6a16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g01.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g02.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn0g04.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn2c16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbbn3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn2c16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbgn3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbrn2c08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn0g16.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbwn3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftbyn3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n0g08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n2c08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp0n3p08.png - ${CMAKE_CURRENT_SOURCE_DIR}/contrib/pngsuite/ftp1n3p08.png - ) -endif() - -# Ensure the CMAKE_LIBRARY_OUTPUT_DIRECTORY is set -IF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) - SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "lib") -ENDIF(NOT CMAKE_LIBRARY_OUTPUT_DIRECTORY) - -# Set a variable with CMake code which: -# Creates a symlink from src to dest (if possible) or alternatively -# copies if different. -macro(CREATE_SYMLINK SRC_FILE DEST_FILE) - FILE(REMOVE ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) - if(WIN32 AND NOT CYGWIN AND NOT MSYS) - ADD_CUSTOM_COMMAND( - OUTPUT ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} - COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} - COMMAND ${CMAKE_COMMAND} -E copy_if_different "${SRC_FILE}" ${CMAKE_CURRENT_BINARY_DIR}/${DEST_FILE} - DEPENDS ${PNG_LIB_TARGETS} - ) - ADD_CUSTOM_TARGET(${DEST_FILE}_COPY ALL DEPENDS ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE}) - else(WIN32 AND NOT CYGWIN AND NOT MSYS) - get_filename_component(LINK_TARGET "${SRC_FILE}" NAME) - execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) - execute_process(COMMAND ${CMAKE_COMMAND} -E create_symlink "${LINK_TARGET}" ${DEST_FILE} WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}) - endif(WIN32 AND NOT CYGWIN AND NOT MSYS) -endmacro() - -# libpng is a library so default to 'lib' -if(NOT DEFINED CMAKE_INSTALL_LIBDIR) - set(CMAKE_INSTALL_LIBDIR lib) -endif(NOT DEFINED CMAKE_INSTALL_LIBDIR) - -# CREATE PKGCONFIG FILES -# we use the same files like ./configure, so we have to set its vars -# Only do this on Windows for Cygwin - the files don't make much sense outside -# a UNIX look alike -if(NOT WIN32 OR CYGWIN OR MINGW) - set(prefix ${CMAKE_INSTALL_PREFIX}) - set(exec_prefix ${CMAKE_INSTALL_PREFIX}) - set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}) - set(includedir ${CMAKE_INSTALL_PREFIX}/include) - set(LIBS "-lz -lm") - configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng.pc.in - ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc @ONLY) - CREATE_SYMLINK(${PNGLIB_NAME}.pc libpng.pc) - - configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpng-config.in - ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config @ONLY) - CREATE_SYMLINK(${PNGLIB_NAME}-config libpng-config) -endif(NOT WIN32 OR CYGWIN OR MINGW) - -# SET UP LINKS -if(PNG_SHARED) - set_target_properties(${PNG_LIB_NAME} PROPERTIES -# VERSION 16.${PNGLIB_RELEASE}.1.6.12 - VERSION 16.${PNGLIB_RELEASE}.0 - SOVERSION 16 - CLEAN_DIRECT_OUTPUT 1) -endif() -if(PNG_STATIC) - # MSVC doesn't use a different file extension for shared vs. static - # libs. We are able to change OUTPUT_NAME to remove the _static - # for all other platforms. - if(NOT MSVC) - set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES - OUTPUT_NAME ${PNG_LIB_NAME} - CLEAN_DIRECT_OUTPUT 1) - endif() -endif() - -# If CMake > 2.4.x, we set a variable used below to export -# targets to an export file. -# TODO: Use VERSION_GREATER after our cmake_minimum_required >= 2.6.2 -if(CMAKE_MAJOR_VERSION GREATER 1 AND CMAKE_MINOR_VERSION GREATER 4) - set(PNG_EXPORT_RULE EXPORT libpng) -elseif(CMAKE_MAJOR_VERSION GREATER 2) # future proof - set(PNG_EXPORT_RULE EXPORT libpng) -endif() - -# INSTALL -if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) - install(TARGETS ${PNG_LIB_TARGETS} - ${PNG_EXPORT_RULE} - RUNTIME DESTINATION bin - LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} - ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}) - - if(PNG_SHARED) - # Create a symlink for libpng.dll.a => libpng16.dll.a on Cygwin - if(CYGWIN OR MINGW) - get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE}) - CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_IMPORT_LIBRARY_SUFFIX}) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_IMPORT_LIBRARY_SUFFIX} - DESTINATION ${CMAKE_INSTALL_LIBDIR}) - endif(CYGWIN OR MINGW) - - if(NOT WIN32) - get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME} LOCATION_${CMAKE_BUILD_TYPE}) - CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_SHARED_LIBRARY_SUFFIX}) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_SHARED_LIBRARY_SUFFIX} - DESTINATION ${CMAKE_INSTALL_LIBDIR}) - endif(NOT WIN32) - endif(PNG_SHARED) - - if(PNG_STATIC) - if(NOT WIN32 OR CYGWIN OR MINGW) - get_target_property(BUILD_TARGET_LOCATION ${PNG_LIB_NAME_STATIC} LOCATION_${CMAKE_BUILD_TYPE}) - CREATE_SYMLINK(${BUILD_TARGET_LOCATION} libpng${CMAKE_STATIC_LIBRARY_SUFFIX}) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${CMAKE_STATIC_LIBRARY_SUFFIX} - DESTINATION ${CMAKE_INSTALL_LIBDIR}) - endif(NOT WIN32 OR CYGWIN OR MINGW) - endif() -endif() - -if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) - install(FILES ${libpng_public_hdrs} DESTINATION include) - install(FILES ${libpng_public_hdrs} DESTINATION include/${PNGLIB_NAME}) -endif() -if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL ) - if(NOT WIN32 OR CYGWIN OR MINGW) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config - DESTINATION bin) - endif(NOT WIN32 OR CYGWIN OR MINGW) -endif() - -if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) - # Install man pages - if(NOT PNG_MAN_DIR) - set(PNG_MAN_DIR "share/man") - endif() - install(FILES libpng.3 libpngpf.3 DESTINATION ${PNG_MAN_DIR}/man3) - install(FILES png.5 DESTINATION ${PNG_MAN_DIR}/man5) - # Install pkg-config files - if(NOT WIN32 OR CYGWIN OR MINGW) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc - DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config - DESTINATION bin) - install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc - DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) - install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config - DESTINATION bin) - endif(NOT WIN32 OR CYGWIN OR MINGW) -endif() - -# On versions of CMake that support it, create an export file CMake -# users can include() to import our targets -if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL ) - install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake) -endif() - -# what's with libpng-$VER%.txt and all the extra files? - -# UNINSTALL -# do we need this? - -# DIST -# do we need this? - -# to create msvc import lib for mingw compiled shared lib -# pexports libpng.dll > libpng.def -# lib /def:libpng.def /machine:x86 - diff --git a/png/INSTALL b/png/INSTALL deleted file mode 100755 index b645491..0000000 --- a/png/INSTALL +++ /dev/null @@ -1,369 +0,0 @@ - -Installing libpng - -Contents - - I. Simple installation - II. Rebuilding the configure scripts - III. Using scripts/makefile* - IV. Using cmake - V. Directory structure - VI. Building with project files - VII. Building with makefiles -VIII. Configuring libpng for 16-bit platforms - IX. Configuring for DOS - X. Configuring for Medium Model - XI. Prepending a prefix to exported symbols - XII. Configuring for compiler xxx: -XIII. Removing unwanted object code - XIV. Changes to the build and configuration of libpng in libpng-1.5.x - XV. Configuring libpng for multiprocessing - XVI. Other sources of information about libpng: - -I. Simple installation - -On Unix/Linux and similar systems, you can simply type - - ./configure [--prefix=/path] - make check - make install - -and ignore the rest of this document. - -II. Rebuilding the configure scripts - -If configure does not work on your system, or if you have a need to -change configure.ac or Makefile.am, and you have a reasonably -up-to-date set of tools, running ./autogen.sh in a git clone before -running ./configure may fix the problem. To be really sure that you -aren't using any of the included pre-built scripts, you can do this: - - ./configure --enable-maintainer-mode - make maintainer-clean - ./autogen.sh --maintainer --clean - ./autogen.sh --maintainer - ./configure [--prefix=/path] [other options] - make - make install - make check - -III. Using scripts/makefile* - -Instead, you can use one of the custom-built makefiles in the -"scripts" directory - - cp scripts/pnglibconf.h.prebuilt pnglibconf.h - cp scripts/makefile.system makefile - make test - make install - -The files that are presently available in the scripts directory -are listed and described in scripts/README.txt. - -Or you can use one of the "projects" in the "projects" directory. - -Before installing libpng, you must first install zlib, if it -is not already on your system. zlib can usually be found -wherever you got libpng. zlib can be placed in another directory, -at the same level as libpng. - -If your system already has a preinstalled zlib you will still need -to have access to the zlib.h and zconf.h include files that -correspond to the version of zlib that's installed. - -If you wish to test with a particular zlib that is not first in the -standard library search path, put ZLIBLIB, ZLIBINC, CPPFLAGS, LDFLAGS, -and LD_LIBRARY_PATH in your environment before running "make test" -or "make distcheck": - -ZLIBLIB=/path/to/lib export ZLIBLIB -ZLIBINC=/path/to/include export ZLIBINC -CPPFLAGS="-I$ZLIBINC" export CPPFLAGS -LDFLAGS="-L$ZLIBLIB" export LDFLAGS -LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH - -If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC -in your environment and type "make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test". - -IV. Using cmake - -If you want to use "cmake" (see www.cmake.org), type - - cmake . -DCMAKE_INSTALL_PREFIX=/path - make - make install - -V. Directory structure - -You can rename the directories that you downloaded (they -might be called "libpng-x.y.z" or "libpngNN" and "zlib-1.2.8" -or "zlib128") so that you have directories called "zlib" and "libpng". - -Your directory structure should look like this: - - .. (the parent directory) - libpng (this directory) - INSTALL (this file) - README - *.h - *.c - CMakeLists.txt => "cmake" script - configuration files: - configure.ac, configure, Makefile.am, Makefile.in, - autogen.sh, config.guess, ltmain.sh, missing, libpng.pc.in, - libpng-config.in, aclocal.m4, config.h.in, config.sub, - depcomp, install-sh, mkinstalldirs, test-pngtest.sh - contrib - gregbook - libtests - pngminim - pngminus - pngsuite - visupng - projects - visualc71 - vstudio - scripts - makefile.* - *.def (module definition files) - etc. - pngtest.png - etc. - zlib - README - *.h - *.c - contrib - etc. - -If the line endings in the files look funny, you may wish to get the other -distribution of libpng. It is available in both tar.gz (UNIX style line -endings) and zip (DOS style line endings) formats. - -VI. Building with project files - -If you are building libpng with MSVC, you can enter the -libpng projects\visualc6 or visualc71 directory and follow the instructions -in README.txt. - -Otherwise enter the zlib directory and follow the instructions in zlib/README, -then come back here and run "configure" or choose the appropriate -makefile.sys in the scripts directory. - -VII. Building with makefiles - -Copy the file (or files) that you need from the -scripts directory into this directory, for example - - MSDOS example: copy scripts\makefile.msc makefile - copy scripts\pnglibconf.h.prebuilt pnglibconf.h - UNIX example: cp scripts/makefile.std makefile - cp scripts/pnglibconf.h.prebuilt pnglibconf.h - -Read the makefile to see if you need to change any source or -target directories to match your preferences. - -Then read pnglibconf.dfa to see if you want to make any configuration -changes. - -Then just run "make" which will create the libpng library in -this directory and "make test" which will run a quick test that reads -the "pngtest.png" file and writes a "pngout.png" file that should be -identical to it. Look for "9782 zero samples" in the output of the -test. For more confidence, you can run another test by typing -"pngtest pngnow.png" and looking for "289 zero samples" in the output. -Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare -your output with the result shown in contrib/pngsuite/README. - -Most of the makefiles will allow you to run "make install" to -put the library in its final resting place (if you want to -do that, run "make install" in the zlib directory first if necessary). -Some also allow you to run "make test-installed" after you have -run "make install". - -VIII. Configuring libpng for 16-bit platforms - -You will want to look into zconf.h to tell zlib (and thus libpng) that -it cannot allocate more then 64K at a time. Even if you can, the memory -won't be accessible. So limit zlib and libpng to 64K by defining MAXSEG_64K. - -IX. Configuring for DOS - -For DOS users who only have access to the lower 640K, you will -have to limit zlib's memory usage via a png_set_compression_mem_level() -call. See zlib.h or zconf.h in the zlib library for more information. - -X. Configuring for Medium Model - -Libpng's support for medium model has been tested on most of the popular -compilers. Make sure MAXSEG_64K gets defined, USE_FAR_KEYWORD gets -defined, and FAR gets defined to far in pngconf.h, and you should be -all set. Everything in the library (except for zlib's structure) is -expecting far data. You must use the typedefs with the p or pp on -the end for pointers (or at least look at them and be careful). Make -note that the rows of data are defined as png_bytepp, which is -an "unsigned char far * far *". - -XI. Prepending a prefix to exported symbols - -Starting with libpng-1.6.0, you can configure libpng (when using the -"configure" script) to prefix all exported symbols by means of the -configuration option "--with-libpng-prefix=FOO_", where FOO_ can be any -string beginning with a letter and containing only uppercase -and lowercase letters, digits, and the underscore (i.e., a C language -identifier). This creates a set of macros in pnglibconf.h, so this is -transparent to applications; their function calls get transformed by -the macros to use the modified names. - -XII. Configuring for compiler xxx: - -All includes for libpng are in pngconf.h. If you need to add, change -or delete an include, this is the place to do it. -The includes that are not needed outside libpng are placed in pngpriv.h, -which is only used by the routines inside libpng itself. -The files in libpng proper only include pngpriv.h and png.h, which -in turn includes pngconf.h and, as of libpng-1.5.0, pnglibconf.h. -As of libpng-1.5.0, pngpriv.h also includes three other private header -files, pngstruct.h, pnginfo.h, and pngdebug.h, which contain material -that previously appeared in the public headers. - -XIII. Removing unwanted object code - -There are a bunch of #define's in pngconf.h that control what parts of -libpng are compiled. All the defines end in _SUPPORTED. If you are -never going to use a capability, you can change the #define to #undef -before recompiling libpng and save yourself code and data space, or -you can turn off individual capabilities with defines that begin with -PNG_NO_. - -In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead. - -You can also turn all of the transforms and ancillary chunk capabilities -off en masse with compiler directives that define -PNG_NO_READ[or WRITE]_TRANSFORMS, or PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS, -or all four, along with directives to turn on any of the capabilities that -you do want. The PNG_NO_READ[or WRITE]_TRANSFORMS directives disable the -extra transformations but still leave the library fully capable of reading -and writing PNG files with all known public chunks. Use of the -PNG_NO_READ[or WRITE]_ANCILLARY_CHUNKS directive produces a library -that is incapable of reading or writing ancillary chunks. If you are -not using the progressive reading capability, you can turn that off -with PNG_NO_PROGRESSIVE_READ (don't confuse this with the INTERLACING -capability, which you'll still have). - -All the reading and writing specific code are in separate files, so the -linker should only grab the files it needs. However, if you want to -make sure, or if you are building a stand alone library, all the -reading files start with "pngr" and all the writing files start with "pngw". -The files that don't match either (like png.c, pngtrans.c, etc.) -are used for both reading and writing, and always need to be included. -The progressive reader is in pngpread.c - -If you are creating or distributing a dynamically linked library (a .so -or DLL file), you should not remove or disable any parts of the library, -as this will cause applications linked with different versions of the -library to fail if they call functions not available in your library. -The size of the library itself should not be an issue, because only -those sections that are actually used will be loaded into memory. - -XIV. Changes to the build and configuration of libpng in libpng-1.5.x - -Details of internal changes to the library code can be found in the CHANGES -file and in the GIT repository logs. These will be of no concern to the vast -majority of library users or builders; however, the few who configure libpng -to a non-default feature set may need to change how this is done. - -There should be no need for library builders to alter build scripts if -these use the distributed build support - configure or the makefiles - -however, users of the makefiles may care to update their build scripts -to build pnglibconf.h where the corresponding makefile does not do so. - -Building libpng with a non-default configuration has changed completely. -The old method using pngusr.h should still work correctly even though the -way pngusr.h is used in the build has been changed; however, library -builders will probably want to examine the changes to take advantage of -new capabilities and to simplify their build system. - -A. Specific changes to library configuration capabilities - -The exact mechanism used to control attributes of API functions has -changed. A single set of operating system independent macro definitions -is used and operating system specific directives are defined in -pnglibconf.h - -As part of this the mechanism used to choose procedure call standards on -those systems that allow a choice has been changed. At present this only -affects certain Microsoft (DOS, Windows) and IBM (OS/2) operating systems -running on Intel processors. As before, PNGAPI is defined where required -to control the exported API functions; however, two new macros, PNGCBAPI -and PNGCAPI, are used instead for callback functions (PNGCBAPI) and -(PNGCAPI) for functions that must match a C library prototype (currently -only png_longjmp_ptr, which must match the C longjmp function.) The new -approach is documented in pngconf.h - -Despite these changes, libpng 1.5.0 only supports the native C function -calling standard on those platforms tested so far (__cdecl on Microsoft -Windows). This is because the support requirements for alternative -calling conventions seem to no longer exist. Developers who find it -necessary to set PNG_API_RULE to 1 should advise the mailing list -(png-mng-implement) of this and library builders who use Openwatcom and -therefore set PNG_API_RULE to 2 should also contact the mailing list. - -B. Changes to the configuration mechanism - -Prior to libpng-1.5.0 library builders who needed to configure libpng -had either to modify the exported pngconf.h header file to add system -specific configuration or had to write feature selection macros into -pngusr.h and cause this to be included into pngconf.h by defining -PNG_USER_CONFIG. The latter mechanism had the disadvantage that an -application built without PNG_USER_CONFIG defined would see the -unmodified, default, libpng API and thus would probably fail to link. - -These mechanisms still work in the configure build and in any makefile -build that builds pnglibconf.h, although the feature selection macros -have changed somewhat as described above. In 1.5.0, however, pngusr.h is -processed only once, when the exported header file pnglibconf.h is built. -pngconf.h no longer includes pngusr.h, therefore pngusr.h is ignored after the -build of pnglibconf.h and it is never included in an application build. - -The rarely used alternative of adding a list of feature macros to the -CPPFLAGS setting in the build also still works; however, the macros will be -copied to pnglibconf.h and this may produce macro redefinition warnings -when the individual C files are compiled. - -All configuration now only works if pnglibconf.h is built from -scripts/pnglibconf.dfa. This requires the program awk. Brian Kernighan -(the original author of awk) maintains C source code of that awk and this -and all known later implementations (often called by subtly different -names - nawk and gawk for example) are adequate to build pnglibconf.h. -The Sun Microsystems (now Oracle) program 'awk' is an earlier version -and does not work; this may also apply to other systems that have a -functioning awk called 'nawk'. - -Configuration options are now documented in scripts/pnglibconf.dfa. This -file also includes dependency information that ensures a configuration is -consistent; that is, if a feature is switched off dependent features are -also removed. As a recommended alternative to using feature macros in -pngusr.h a system builder may also define equivalent options in pngusr.dfa -(or, indeed, any file) and add that to the configuration by setting -DFA_XTRA to the file name. The makefiles in contrib/pngminim illustrate -how to do this, and a case where pngusr.h is still required. - -XV. Configuring libpng for multiprocessing - -Libpng uses setjmp()/longjmp() for error handling. Unfortunately setjmp() -is known to be not thread-safe on some platforms and we don't know of -any platform where it is guaranteed to be thread-safe. Therefore, if -your application is going to be using multiple threads, you should -configure libpng with PNG_NO_SETJMP in your pngusr.dfa file, with --DPNG_NO_SETJMP on your compile line, or with - - #undef PNG_SETJMP_SUPPORTED - -in your pnglibconf.h or pngusr.h. - -XVI. Other sources of information about libpng: - -Further information can be found in the README and libpng-manual.txt -files, in the individual makefiles, in png.h, and the manual pages -libpng.3 and png.5. diff --git a/png/Jamfile b/png/Jamfile deleted file mode 100755 index def7495..0000000 --- a/png/Jamfile +++ /dev/null @@ -1,32 +0,0 @@ - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -Libraries = libpng ; -Executables = ; -Headers = png.h ; - -HDRS = $(ZINC) ; - -# png library -LIBSRCS = - png.c - pngerror.c - pngget.c - pngmem.c - pngpread.c - pngread.c - pngrio.c - pngrtran.c - pngrutil.c - pngset.c - pngtrans.c - pngwio.c - pngwrite.c - pngwtran.c - pngwutil.c - ; - -Library libpng : $(LIBSRCS) ; - diff --git a/png/LICENSE b/png/LICENSE deleted file mode 100755 index b77abdd..0000000 --- a/png/LICENSE +++ /dev/null @@ -1,111 +0,0 @@ - -This copy of the libpng notices is provided for your convenience. In case of -any discrepancy between this copy and the notices in the file png.h that is -included in the libpng distribution, the latter shall prevail. - -COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - -If you modify libpng you may insert additional notices immediately following -this sentence. - -This code is released under the libpng license. - -libpng versions 1.2.6, August 15, 2004, through 1.6.12, June 12, 2014, are -Copyright (c) 2004, 2006-2014 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.2.5 -with the following individual added to the list of Contributing Authors - - Cosmin Truta - -libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are -Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.0.6 -with the following individuals added to the list of Contributing Authors - - Simon-Pierre Cadieux - Eric S. Raymond - Gilles Vollant - -and with the following additions to the disclaimer: - - There is no warranty against interference with your enjoyment of the - library or against infringement. There is no warranty that our - efforts or the library will fulfill any of your particular purposes - or needs. This library is provided with all faults, and the entire - risk of satisfactory quality, performance, accuracy, and effort is with - the user. - -libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are -Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-0.96, -with the following individuals added to the list of Contributing Authors: - - Tom Lane - Glenn Randers-Pehrson - Willem van Schaik - -libpng versions 0.89, June 1996, through 0.96, May 1997, are -Copyright (c) 1996, 1997 Andreas Dilger -Distributed according to the same disclaimer and license as libpng-0.88, -with the following individuals added to the list of Contributing Authors: - - John Bowler - Kevin Bracey - Sam Bushell - Magnus Holmgren - Greg Roelofs - Tom Tanner - -libpng versions 0.5, May 1995, through 0.88, January 1996, are -Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. - -For the purposes of this copyright and license, "Contributing Authors" -is defined as the following set of individuals: - - Andreas Dilger - Dave Martindale - Guy Eric Schalnat - Paul Schmidt - Tim Wegner - -The PNG Reference Library is supplied "AS IS". The Contributing Authors -and Group 42, Inc. disclaim all warranties, expressed or implied, -including, without limitation, the warranties of merchantability and of -fitness for any purpose. The Contributing Authors and Group 42, Inc. -assume no liability for direct, indirect, incidental, special, exemplary, -or consequential damages, which may result from the use of the PNG -Reference Library, even if advised of the possibility of such damage. - -Permission is hereby granted to use, copy, modify, and distribute this -source code, or portions hereof, for any purpose, without fee, subject -to the following restrictions: - -1. The origin of this source code must not be misrepresented. - -2. Altered versions must be plainly marked as such and must not - be misrepresented as being the original source. - -3. This Copyright notice may not be removed or altered from any - source or altered source distribution. - -The Contributing Authors and Group 42, Inc. specifically permit, without -fee, and encourage the use of this source code as a component to -supporting the PNG file format in commercial products. If you use this -source code in a product, acknowledgment is not required but would be -appreciated. - - -A "png_get_copyright" function is available, for convenient use in "about" -boxes and the like: - - printf("%s",png_get_copyright(NULL)); - -Also, the PNG logo (in PNG format, of course) is supplied in the -files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). - -Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a -certification mark of the Open Source Initiative. - -Glenn Randers-Pehrson -glennrp at users.sourceforge.net -June 12, 2014 diff --git a/png/README b/png/README deleted file mode 100755 index dc6c00b..0000000 --- a/png/README +++ /dev/null @@ -1,202 +0,0 @@ -README for libpng version 1.6.12 - June 12, 2014 (shared library 16.0) -See the note about version numbers near the top of png.h - -See INSTALL for instructions on how to install libpng. - -Libpng comes in several distribution formats. Get libpng-*.tar.gz or -libpng-*.tar.xz or if you want UNIX-style line endings in the text files, -or lpng*.7z or lpng*.zip if you want DOS-style line endings. - -Version 0.89 was the first official release of libpng. Don't let the -fact that it's the first release fool you. The libpng library has been in -extensive use and testing since mid-1995. By late 1997 it had -finally gotten to the stage where there hadn't been significant -changes to the API in some time, and people have a bad feeling about -libraries with versions < 1.0. Version 1.0.0 was released in -March 1998. - -**** -Note that some of the changes to the png_info structure render this -version of the library binary incompatible with libpng-0.89 or -earlier versions if you are using a shared library. The type of the -"filler" parameter for png_set_filler() has changed from png_byte to -png_uint_32, which will affect shared-library applications that use -this function. - -To avoid problems with changes to the internals of png_info_struct, -new APIs have been made available in 0.95 to avoid direct application -access to info_ptr. These functions are the png_set_ and -png_get_ functions. These functions should be used when -accessing/storing the info_struct data, rather than manipulating it -directly, to avoid such problems in the future. - -It is important to note that the APIs do not make current programs -that access the info struct directly incompatible with the new -library. However, it is strongly suggested that new programs use -the new APIs (as shown in example.c and pngtest.c), and older programs -be converted to the new format, to facilitate upgrades in the future. -**** - -Additions since 0.90 include the ability to compile libpng as a -Windows DLL, and new APIs for accessing data in the info struct. -Experimental functions include the ability to set weighting and cost -factors for row filter selection, direct reads of integers from buffers -on big-endian processors that support misaligned data access, faster -methods of doing alpha composition, and more accurate 16->8 bit color -conversion. - -The additions since 0.89 include the ability to read from a PNG stream -which has had some (or all) of the signature bytes read by the calling -application. This also allows the reading of embedded PNG streams that -do not have the PNG file signature. As well, it is now possible to set -the library action on the detection of chunk CRC errors. It is possible -to set different actions based on whether the CRC error occurred in a -critical or an ancillary chunk. - -The changes made to the library, and bugs fixed are based on discussions -on the PNG-implement mailing list and not on material submitted -privately to Guy, Andreas, or Glenn. They will forward any good -suggestions to the list. - -For a detailed description on using libpng, read libpng-manual.txt. For -examples of libpng in a program, see example.c and pngtest.c. For usage -information and restrictions (what little they are) on libpng, see -png.h. For a description on using zlib (the compression library used by -libpng) and zlib's restrictions, see zlib.h - -I have included a general makefile, as well as several machine and -compiler specific ones, but you may have to modify one for your own needs. - -You should use zlib 1.0.4 or later to run this, but it MAY work with -versions as old as zlib 0.95. Even so, there are bugs in older zlib -versions which can cause the output of invalid compression streams for -some images. You will definitely need zlib 1.0.4 or later if you are -taking advantage of the MS-DOS "far" structure allocation for the small -and medium memory models. You should also note that zlib is a -compression library that is useful for more things than just PNG files. -You can use zlib as a drop-in replacement for fread() and fwrite() if -you are so inclined. - -zlib should be available at the same place that libpng is, or at zlib.net. - -You may also want a copy of the PNG specification. It is available -as an RFC, a W3C Recommendation, and an ISO/IEC Standard. You can find -these at http://www.libpng.org/pub/png/documents/ - -This code is currently being archived at libpng.sf.net in the -[DOWNLOAD] area, and at ftp://ftp.simplesystems.org. If you can't find it -in any of those places, e-mail me, and I'll help you find it. - -If you have any code changes, requests, problems, etc., please e-mail -them to me. Also, I'd appreciate any make files or project files, -and any modifications you needed to make to get libpng to compile, -along with a #define variable to tell what compiler/system you are on. -If you needed to add transformations to libpng, or wish libpng would -provide the image in a different way, drop me a note (and code, if -possible), so I can consider supporting the transformation. -Finally, if you get any warning messages when compiling libpng -(note: not zlib), and they are easy to fix, I'd appreciate the -fix. Please mention "libpng" somewhere in the subject line. Thanks. - -This release was created and will be supported by myself (of course -based in a large way on Guy's and Andreas' earlier work), and the PNG -development group. - -Send comments/corrections/commendations to png-mng-implement at -lists.sourceforge.net (subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe) or to glennrp at users.sourceforge.net - -You can't reach Guy, the original libpng author, at the addresses -given in previous versions of this document. He and Andreas will -read mail addressed to the png-implement list, however. - -Please do not send general questions about PNG. Send them to -png-mng-misc at lists.sf.net (subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-misc to -subscribe). If you have a question about something -in the PNG specification that is related to using libpng, send it -to me. Send me any questions that start with "I was using libpng, -and ...". If in doubt, send questions to me. I'll bounce them -to others, if necessary. - -Please do not send suggestions on how to change PNG. We have -been discussing PNG for nineteen years now, and it is official and -finished. If you have suggestions for libpng, however, I'll -gladly listen. Even if your suggestion is not used immediately, -it may be used later. - -Files in this distribution: - - ANNOUNCE => Announcement of this version, with recent changes - CHANGES => Description of changes between libpng versions - KNOWNBUG => List of known bugs and deficiencies - LICENSE => License to use and redistribute libpng - README => This file - TODO => Things not implemented in the current library - Y2KINFO => Statement of Y2K compliance - example.c => Example code for using libpng functions - libpng.3 => manual page for libpng (includes libpng-manual.txt) - libpng-manual.txt => Description of libpng and its functions - libpngpf.3 => manual page for libpng's private functions - png.5 => manual page for the PNG format - png.c => Basic interface functions common to library - png.h => Library function and interface declarations (public) - pngpriv.h => Library function and interface declarations (private) - pngconf.h => System specific library configuration (public) - pngstruct.h => png_struct declaration (private) - pnginfo.h => png_info struct declaration (private) - pngdebug.h => debugging macros (private) - pngerror.c => Error/warning message I/O functions - pngget.c => Functions for retrieving info from struct - pngmem.c => Memory handling functions - pngbar.png => PNG logo, 88x31 - pngnow.png => PNG logo, 98x31 - pngpread.c => Progressive reading functions - pngread.c => Read data/helper high-level functions - pngrio.c => Lowest-level data read I/O functions - pngrtran.c => Read data transformation functions - pngrutil.c => Read data utility functions - pngset.c => Functions for storing data into the info_struct - pngtest.c => Library test program - pngtest.png => Library test sample image - pngtrans.c => Common data transformation functions - pngwio.c => Lowest-level write I/O functions - pngwrite.c => High-level write functions - pngwtran.c => Write data transformations - pngwutil.c => Write utility functions - arm => Contains optimized code for the ARM platform - contrib => Contributions - examples => Example programs - gregbook => source code for PNG reading and writing, from - Greg Roelofs' "PNG: The Definitive Guide", - O'Reilly, 1999 - libtests => Test programs - pngminim => Minimal decoder, encoder, and progressive decoder - programs demonstrating use of pngusr.dfa - pngminus => Simple pnm2png and png2pnm programs - pngsuite => Test images - tools => Various tools - visupng => Contains a MSVC workspace for VisualPng - projects => Contains project files and workspaces for - building a DLL - owatcom => Contains a WATCOM project for building libpng - visualc71 => Contains a Microsoft Visual C++ (MSVC) - workspace for building libpng and zlib - vstudio => Contains a Microsoft Visual C++ (MSVC) - workspace for building libpng and zlib - scripts => Directory containing scripts for building libpng: - (see scripts/README.txt for the list of scripts) - -Good luck, and happy coding. - --Glenn Randers-Pehrson (current maintainer, since 1998) - Internet: glennrp at users.sourceforge.net - --Andreas Eric Dilger (former maintainer, 1996-1997) - Internet: adilger at enel.ucalgary.ca - Web: http://www-mddsp.enel.ucalgary.ca/People/adilger/ - --Guy Eric Schalnat (original author and former maintainer, 1995-1996) - (formerly of Group 42, Inc) - Internet: gschal at infinet.com diff --git a/png/TODO b/png/TODO deleted file mode 100755 index 7263377..0000000 --- a/png/TODO +++ /dev/null @@ -1,29 +0,0 @@ -/* -TODO - list of things to do for libpng: - -Final bug fixes. -Better C++ wrapper/full C++ implementation? -Fix problem with C++ and EXTERN "C". -cHRM transformation. -Remove setjmp/longjmp usage in favor of returning error codes. -Palette creation. -Add "grayscale->palette" transformation and "palette->grayscale" detection. -Improved dithering. -Multi-lingual error and warning message support. -Complete sRGB transformation (presently it simply uses gamma=0.45455). -Make profile checking optional via a png_set_something() call. -Man pages for function calls. -Better documentation. -Better filter selection - (counting huffman bits/precompression? filter inertia? filter costs?). -Histogram creation. -Text conversion between different code pages (Latin-1 -> Mac and DOS). -Avoid building gamma tables whenever possible. -Use greater precision when changing to linear gamma for compositing against - background and doing rgb-to-gray transformation. -Investigate pre-incremented loop counters and other loop constructions. -Add interpolated method of handling interlacing. -Switch to the simpler zlib (zlib/libpng) license if legally possible. -Extend pngvalid.c to validate more of the libpng transformations. - -*/ diff --git a/png/afiles b/png/afiles deleted file mode 100644 index 9e4e485..0000000 --- a/png/afiles +++ /dev/null @@ -1,44 +0,0 @@ -afiles -Jamfile -ANNOUNCE -CHANGES -CMakeLists.txt -INSTALL -LICENSE -README -TODO -configure -example.c -libpng-config.in -libpng-manual.txt -libpng.3 -libpng.pc.in -libpngpf.3 -png.5 -png.c -png.h -pngbar.jpg -pngbar.png -pngconf.h -pngdebug.h -pngerror.c -pngget.c -pnginfo.h -pnglibconf.h -pngmem.c -pngnow.png -pngpread.c -pngpriv.h -pngread.c -pngrio.c -pngrtran.c -pngrutil.c -pngset.c -pngstruct.h -pngtest.c -pngtest.png -pngtrans.c -pngwio.c -pngwrite.c -pngwtran.c -pngwutil.c diff --git a/png/configure b/png/configure deleted file mode 100755 index 9406e1f..0000000 --- a/png/configure +++ /dev/null @@ -1,19 +0,0 @@ - -echo " - There is no \"configure\" script in this distribution (*.zip or *.7z) of - libpng-1.6.12. - - Instead, please copy the appropriate makefile for your system from the - \"scripts\" directory. Read the INSTALL file for more details. - - Update, July 2004: you can get a \"configure\" based distribution - from the libpng distribution sites. Download the file - libpng-1.6.12.tar.gz, libpng-1.6.12.tar.xz, or libpng-1.6.12.tar.bz2 - - If the line endings in the files look funny, which is likely to be the - case if you were trying to run \"configure\" on a Linux machine, you may - wish to get the other distribution of libpng. It is available in both - tar.gz/tar.xz (UNIX style line endings, with \"configure\") and .7z/.zip - (DOS style line endings, without \"configure\") formats. -" - diff --git a/png/example.c b/png/example.c deleted file mode 100755 index e9747a8..0000000 --- a/png/example.c +++ /dev/null @@ -1,1061 +0,0 @@ - -#if 0 /* in case someone actually tries to compile this */ - -/* example.c - an example of using libpng - * Last changed in libpng 1.6.11 [June 12, 2014] - * Maintained 1998-2014 Glenn Randers-Pehrson - * Maintained 1996, 1997 Andreas Dilger) - * Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * To the extent possible under law, the authors have waived - * all copyright and related or neighboring rights to this file. - * This work is published from: United States. - */ - -/* This is an example of how to use libpng to read and write PNG files. - * The file libpng-manual.txt is much more verbose then this. If you have not - * read it, do so first. This was designed to be a starting point of an - * implementation. This is not officially part of libpng, is hereby placed - * in the public domain, and therefore does not require a copyright notice. - * - * This file does not currently compile, because it is missing certain - * parts, like allocating memory to hold an image. You will have to - * supply these parts to get it to compile. For an example of a minimal - * working PNG reader/writer, see pngtest.c, included in this distribution; - * see also the programs in the contrib directory. - */ - -/* The simple, but restricted, approach to reading a PNG file or data stream - * just requires two function calls, as in the following complete program. - * Writing a file just needs one function call, so long as the data has an - * appropriate layout. - * - * The following code reads PNG image data from a file and writes it, in a - * potentially new format, to a new file. While this code will compile there is - * minimal (insufficient) error checking; for a more realistic version look at - * contrib/examples/pngtopng.c - */ -#include -#include -#include -#include -#include -#include - -int main(int argc, const char **argv) -{ - if (argc == 3) - { - png_image image; /* The control structure used by libpng */ - - /* Initialize the 'png_image' structure. */ - memset(&image, 0, (sizeof image)); - image.version = PNG_IMAGE_VERSION; - - /* The first argument is the file to read: */ - if (png_image_begin_read_from_file(&image, argv[1])) - { - png_bytep buffer; - - /* Set the format in which to read the PNG file; this code chooses a - * simple sRGB format with a non-associated alpha channel, adequate to - * store most images. - */ - image.format = PNG_FORMAT_RGBA; - - /* Now allocate enough memory to hold the image in this format; the - * PNG_IMAGE_SIZE macro uses the information about the image (width, - * height and format) stored in 'image'. - */ - buffer = malloc(PNG_IMAGE_SIZE(image)); - - /* If enough memory was available read the image in the desired format - * then write the result out to the new file. 'background' is not - * necessary when reading the image because the alpha channel is - * preserved; if it were to be removed, for example if we requested - * PNG_FORMAT_RGB, then either a solid background color would have to - * be supplied or the output buffer would have to be initialized to the - * actual background of the image. - * - * The fourth argument to png_image_finish_read is the 'row_stride' - - * this is the number of components allocated for the image in each - * row. It has to be at least as big as the value returned by - * PNG_IMAGE_ROW_STRIDE, but if you just allocate space for the - * default, minimum, size using PNG_IMAGE_SIZE as above you can pass - * zero. - * - * The final argument is a pointer to a buffer for the colormap; - * colormaps have exactly the same format as a row of image pixels (so - * you choose what format to make the colormap by setting - * image.format). A colormap is only returned if - * PNG_FORMAT_FLAG_COLORMAP is also set in image.format, so in this - * case NULL is passed as the final argument. If you do want to force - * all images into an index/color-mapped format then you can use: - * - * PNG_IMAGE_COLORMAP_SIZE(image) - * - * to find the maximum size of the colormap in bytes. - */ - if (buffer != NULL && - png_image_finish_read(&image, NULL/*background*/, buffer, - 0/*row_stride*/, NULL/*colormap*/)) - { - /* Now write the image out to the second argument. In the write - * call 'convert_to_8bit' allows 16-bit data to be squashed down to - * 8 bits; this isn't necessary here because the original read was - * to the 8-bit format. - */ - if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/, - buffer, 0/*row_stride*/, NULL/*colormap*/)) - { - /* The image has been written successfully. */ - exit(0); - } - } - - else - { - /* Calling png_free_image is optional unless the simplified API was - * not run to completion. In this case if there wasn't enough - * memory for 'buffer' we didn't complete the read, so we must free - * the image: - */ - if (buffer == NULL) - png_free_image(&image); - - else - free(buffer); - } - - /* Something went wrong reading or writing the image. libpng stores a - * textual message in the 'png_image' structure: - */ - fprintf(stderr, "pngtopng: error: %s\n", image.message); - exit (1); - } - - fprintf(stderr, "pngtopng: usage: pngtopng input-file output-file\n"); - exit(1); -} - -/* That's it ;-) Of course you probably want to do more with PNG files than - * just converting them all to 32-bit RGBA PNG files; you can do that between - * the call to png_image_finish_read and png_image_write_to_file. You can also - * ask for the image data to be presented in a number of different formats. You - * do this by simply changing the 'format' parameter set before allocating the - * buffer. - * - * The format parameter consists of five flags that define various aspects of - * the image, you can simply add these together to get the format or you can use - * one of the predefined macros from png.h (as above): - * - * PNG_FORMAT_FLAG_COLOR: if set the image will have three color components per - * pixel (red, green and blue), if not set the image will just have one - * luminance (grayscale) component. - * - * PNG_FORMAT_FLAG_ALPHA: if set each pixel in the image will have an additional - * alpha value; a linear value that describes the degree the image pixel - * covers (overwrites) the contents of the existing pixel on the display. - * - * PNG_FORMAT_FLAG_LINEAR: if set the components of each pixel will be returned - * as a series of 16-bit linear values, if not set the components will be - * returned as a series of 8-bit values encoded according to the 'sRGB' - * standard. The 8-bit format is the normal format for images intended for - * direct display, because almost all display devices do the inverse of the - * sRGB transformation to the data they receive. The 16-bit format is more - * common for scientific data and image data that must be further processed; - * because it is linear simple math can be done on the component values. - * Regardless of the setting of this flag the alpha channel is always linear, - * although it will be 8 bits or 16 bits wide as specified by the flag. - * - * PNG_FORMAT_FLAG_BGR: if set the components of a color pixel will be returned - * in the order blue, then green, then red. If not set the pixel components - * are in the order red, then green, then blue. - * - * PNG_FORMAT_FLAG_AFIRST: if set the alpha channel (if present) precedes the - * color or grayscale components. If not set the alpha channel follows the - * components. - * - * You do not have to read directly from a file. You can read from memory or, - * on systems that support it, from a FILE*. This is controlled by - * the particular png_image_read_from_ function you call at the start. Likewise - * on write you can write to a FILE* if your system supports it. Check the - * macro PNG_STDIO_SUPPORTED to see if stdio support has been included in your - * libpng build. - * - * If you read 16-bit (PNG_FORMAT_FLAG_LINEAR) data you may need to write it in - * the 8-bit format for display. You do this by setting the convert_to_8bit - * flag to 'true'. - * - * Don't repeatedly convert between the 8-bit and 16-bit forms. There is - * significant data loss when 16-bit data is converted to the 8-bit encoding and - * the current libpng implementation of convertion to 16-bit is also - * significantly lossy. The latter will be fixed in the future, but the former - * is unavoidable - the 8-bit format just doesn't have enough resolution. - */ - -/* If your program needs more information from the PNG data it reads, or if you - * need to do more complex transformations, or minimise transformations, on the - * data you read, then you must use one of the several lower level libpng - * interfaces. - * - * All these interfaces require that you do your own error handling - your - * program must be able to arrange for control to return to your own code any - * time libpng encounters a problem. There are several ways to do this, but the - * standard way is to use the ANSI-C (C90) interface to establish a - * return point within your own code. You must do this if you do not use the - * simplified interface (above). - * - * The first step is to include the header files you need, including the libpng - * header file. Include any standard headers and feature test macros your - * program requires before including png.h: - */ -#include - - /* The png_jmpbuf() macro, used in error handling, became available in - * libpng version 1.0.6. If you want to be able to run your code with older - * versions of libpng, you must define the macro yourself (but only if it - * is not already defined by libpng!). - */ - -#ifndef png_jmpbuf -# define png_jmpbuf(png_ptr) ((png_ptr)->png_jmpbuf) -#endif - -/* Check to see if a file is a PNG file using png_sig_cmp(). png_sig_cmp() - * returns zero if the image is a PNG and nonzero if it isn't a PNG. - * - * The function check_if_png() shown here, but not used, returns nonzero (true) - * if the file can be opened and is a PNG, 0 (false) otherwise. - * - * If this call is successful, and you are going to keep the file open, - * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once - * you have created the png_ptr, so that libpng knows your application - * has read that many bytes from the start of the file. Make sure you - * don't call png_set_sig_bytes() with more than 8 bytes read or give it - * an incorrect number of bytes read, or you will either have read too - * many bytes (your fault), or you are telling libpng to read the wrong - * number of magic bytes (also your fault). - * - * Many applications already read the first 2 or 4 bytes from the start - * of the image to determine the file type, so it would be easiest just - * to pass the bytes to png_sig_cmp() or even skip that if you know - * you have a PNG file, and call png_set_sig_bytes(). - */ -#define PNG_BYTES_TO_CHECK 4 -int check_if_png(char *file_name, FILE **fp) -{ - char buf[PNG_BYTES_TO_CHECK]; - - /* Open the prospective PNG file. */ - if ((*fp = fopen(file_name, "rb")) == NULL) - return 0; - - /* Read in some of the signature bytes */ - if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK) - return 0; - - /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature. - Return nonzero (true) if they match */ - - return(!png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK)); -} - -/* Read a PNG file. You may want to return an error code if the read - * fails (depending upon the failure). There are two "prototypes" given - * here - one where we are given the filename, and we need to open the - * file, and the other where we are given an open file (possibly with - * some or all of the magic bytes read - see comments above). - */ -#ifdef open_file /* prototype 1 */ -void read_png(char *file_name) /* We need to open the file */ -{ - png_structp png_ptr; - png_infop info_ptr; - unsigned int sig_read = 0; - png_uint_32 width, height; - int bit_depth, color_type, interlace_type; - FILE *fp; - - if ((fp = fopen(file_name, "rb")) == NULL) - return (ERROR); - -#else no_open_file /* prototype 2 */ -void read_png(FILE *fp, unsigned int sig_read) /* File is already open */ -{ - png_structp png_ptr; - png_infop info_ptr; - png_uint_32 width, height; - int bit_depth, color_type, interlace_type; -#endif no_open_file /* Only use one prototype! */ - - /* Create and initialize the png_struct with the desired error handler - * functions. If you want to use the default stderr and longjump method, - * you can supply NULL for the last three parameters. We also supply the - * the compiler header file version, so that we know if the application - * was compiled with a compatible version of the library. REQUIRED - */ - png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, - png_voidp user_error_ptr, user_error_fn, user_warning_fn); - - if (png_ptr == NULL) - { - fclose(fp); - return (ERROR); - } - - /* Allocate/initialize the memory for image information. REQUIRED. */ - info_ptr = png_create_info_struct(png_ptr); - if (info_ptr == NULL) - { - fclose(fp); - png_destroy_read_struct(&png_ptr, NULL, NULL); - return (ERROR); - } - - /* Set error handling if you are using the setjmp/longjmp method (this is - * the normal method of doing things with libpng). REQUIRED unless you - * set up your own error handlers in the png_create_read_struct() earlier. - */ - - if (setjmp(png_jmpbuf(png_ptr))) - { - /* Free all of the memory associated with the png_ptr and info_ptr */ - png_destroy_read_struct(&png_ptr, &info_ptr, NULL); - fclose(fp); - /* If we get here, we had a problem reading the file */ - return (ERROR); - } - - /* One of the following I/O initialization methods is REQUIRED */ -#ifdef streams /* PNG file I/O method 1 */ - /* Set up the input control if you are using standard C streams */ - png_init_io(png_ptr, fp); - -#else no_streams /* PNG file I/O method 2 */ - /* If you are using replacement read functions, instead of calling - * png_init_io() here you would call: - */ - png_set_read_fn(png_ptr, (void *)user_io_ptr, user_read_fn); - /* where user_io_ptr is a structure you want available to the callbacks */ -#endif no_streams /* Use only one I/O method! */ - - /* If we have already read some of the signature */ - png_set_sig_bytes(png_ptr, sig_read); - -#ifdef hilevel - /* - * If you have enough memory to read in the entire image at once, - * and you need to specify only transforms that can be controlled - * with one of the PNG_TRANSFORM_* bits (this presently excludes - * quantizing, filling, setting background, and doing gamma - * adjustment), then you can read the entire image (including - * pixels) into the info structure with this call: - */ - png_read_png(png_ptr, info_ptr, png_transforms, NULL); - -#else - /* OK, you're doing it the hard way, with the lower-level functions */ - - /* The call to png_read_info() gives us all of the information from the - * PNG file before the first IDAT (image data chunk). REQUIRED - */ - png_read_info(png_ptr, info_ptr); - - png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, - &interlace_type, NULL, NULL); - - /* Set up the data transformations you want. Note that these are all - * optional. Only call them if you want/need them. Many of the - * transformations only work on specific types of images, and many - * are mutually exclusive. - */ - - /* Tell libpng to strip 16 bit/color files down to 8 bits/color. - * Use accurate scaling if it's available, otherwise just chop off the - * low byte. - */ -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED - png_set_scale_16(png_ptr); -#else - png_set_strip_16(png_ptr); -#endif - - /* Strip alpha bytes from the input data without combining with the - * background (not recommended). - */ - png_set_strip_alpha(png_ptr); - - /* Extract multiple pixels with bit depths of 1, 2, and 4 from a single - * byte into separate bytes (useful for paletted and grayscale images). - */ - png_set_packing(png_ptr); - - /* Change the order of packed pixels to least significant bit first - * (not useful if you are using png_set_packing). */ - png_set_packswap(png_ptr); - - /* Expand paletted colors into true RGB triplets */ - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(png_ptr); - - /* Expand grayscale images to the full 8 bits from 1, 2, or 4 bits/pixel */ - if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) - png_set_expand_gray_1_2_4_to_8(png_ptr); - - /* Expand paletted or RGB images with transparency to full alpha channels - * so the data will be available as RGBA quartets. - */ - if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) - png_set_tRNS_to_alpha(png_ptr); - - /* Set the background color to draw transparent and alpha images over. - * It is possible to set the red, green, and blue components directly - * for paletted images instead of supplying a palette index. Note that - * even if the PNG file supplies a background, you are not required to - * use it - you should use the (solid) application background if it has one. - */ - - png_color_16 my_background, *image_background; - - if (png_get_bKGD(png_ptr, info_ptr, &image_background)) - png_set_background(png_ptr, image_background, - PNG_BACKGROUND_GAMMA_FILE, 1, 1.0); - else - png_set_background(png_ptr, &my_background, - PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0); - - /* Some suggestions as to how to get a screen gamma value - * - * Note that screen gamma is the display_exponent, which includes - * the CRT_exponent and any correction for viewing conditions - */ - if (/* We have a user-defined screen gamma value */) - { - screen_gamma = user-defined screen_gamma; - } - /* This is one way that applications share the same screen gamma value */ - else if ((gamma_str = getenv("SCREEN_GAMMA")) != NULL) - { - screen_gamma = atof(gamma_str); - } - /* If we don't have another value */ - else - { - screen_gamma = PNG_DEFAULT_sRGB; /* A good guess for a PC monitor - in a dimly lit room */ - screen_gamma = PNG_GAMMA_MAC_18 or 1.0; /* Good guesses for Mac systems */ - } - - /* Tell libpng to handle the gamma conversion for you. The final call - * is a good guess for PC generated images, but it should be configurable - * by the user at run time by the user. It is strongly suggested that - * your application support gamma correction. - */ - - int intent; - - if (png_get_sRGB(png_ptr, info_ptr, &intent)) - png_set_gamma(png_ptr, screen_gamma, PNG_DEFAULT_sRGB); - else - { - double image_gamma; - if (png_get_gAMA(png_ptr, info_ptr, &image_gamma)) - png_set_gamma(png_ptr, screen_gamma, image_gamma); - else - png_set_gamma(png_ptr, screen_gamma, 0.45455); - } - -#ifdef PNG_READ_QUANTIZE_SUPPORTED - /* Quantize RGB files down to 8 bit palette or reduce palettes - * to the number of colors available on your screen. - */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - int num_palette; - png_colorp palette; - - /* This reduces the image to the application supplied palette */ - if (/* We have our own palette */) - { - /* An array of colors to which the image should be quantized */ - png_color std_color_cube[MAX_SCREEN_COLORS]; - - png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS, - MAX_SCREEN_COLORS, NULL, 0); - } - /* This reduces the image to the palette supplied in the file */ - else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette)) - { - png_uint_16p histogram = NULL; - - png_get_hIST(png_ptr, info_ptr, &histogram); - - png_set_quantize(png_ptr, palette, num_palette, - max_screen_colors, histogram, 0); - } - } -#endif /* PNG_READ_QUANTIZE_SUPPORTED */ - - /* Invert monochrome files to have 0 as white and 1 as black */ - png_set_invert_mono(png_ptr); - - /* If you want to shift the pixel values from the range [0,255] or - * [0,65535] to the original [0,7] or [0,31], or whatever range the - * colors were originally in: - */ - if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT)) - { - png_color_8p sig_bit_p; - - png_get_sBIT(png_ptr, info_ptr, &sig_bit_p); - png_set_shift(png_ptr, sig_bit_p); - } - - /* Flip the RGB pixels to BGR (or RGBA to BGRA) */ - if (color_type & PNG_COLOR_MASK_COLOR) - png_set_bgr(png_ptr); - - /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */ - png_set_swap_alpha(png_ptr); - - /* Swap bytes of 16 bit files to least significant byte first */ - png_set_swap(png_ptr); - - /* Add filler (or alpha) byte (before/after each RGB triplet) */ - png_set_filler(png_ptr, 0xff, PNG_FILLER_AFTER); - -#ifdef PNG_READ_INTERLACING_SUPPORTED - /* Turn on interlace handling. REQUIRED if you are not using - * png_read_image(). To see how to handle interlacing passes, - * see the png_read_row() method below: - */ - number_passes = png_set_interlace_handling(png_ptr); -#else - number_passes = 1; -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - - - /* Optional call to gamma correct and add the background to the palette - * and update info structure. REQUIRED if you are expecting libpng to - * update the palette for you (ie you selected such a transform above). - */ - png_read_update_info(png_ptr, info_ptr); - - /* Allocate the memory to hold the image using the fields of info_ptr. */ - - /* The easiest way to read the image: */ - png_bytep row_pointers[height]; - - /* Clear the pointer array */ - for (row = 0; row < height; row++) - row_pointers[row] = NULL; - - for (row = 0; row < height; row++) - row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr, - info_ptr)); - - /* Now it's time to read the image. One of these methods is REQUIRED */ -#ifdef entire /* Read the entire image in one go */ - png_read_image(png_ptr, row_pointers); - -#else no_entire /* Read the image one or more scanlines at a time */ - /* The other way to read images - deal with interlacing: */ - - for (pass = 0; pass < number_passes; pass++) - { -#ifdef single /* Read the image a single row at a time */ - for (y = 0; y < height; y++) - { - png_read_rows(png_ptr, &row_pointers[y], NULL, 1); - } - -#else no_single /* Read the image several rows at a time */ - for (y = 0; y < height; y += number_of_rows) - { -#ifdef sparkle /* Read the image using the "sparkle" effect. */ - png_read_rows(png_ptr, &row_pointers[y], NULL, - number_of_rows); -#else no_sparkle /* Read the image using the "rectangle" effect */ - png_read_rows(png_ptr, NULL, &row_pointers[y], - number_of_rows); -#endif no_sparkle /* Use only one of these two methods */ - } - - /* If you want to display the image after every pass, do so here */ -#endif no_single /* Use only one of these two methods */ - } -#endif no_entire /* Use only one of these two methods */ - - /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */ - png_read_end(png_ptr, info_ptr); -#endif hilevel - - /* At this point you have read the entire image */ - - /* Clean up after the read, and free any memory allocated - REQUIRED */ - png_destroy_read_struct(&png_ptr, &info_ptr, NULL); - - /* Close the file */ - fclose(fp); - - /* That's it */ - return (OK); -} - -/* Progressively read a file */ - -int -initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr) -{ - /* Create and initialize the png_struct with the desired error handler - * functions. If you want to use the default stderr and longjump method, - * you can supply NULL for the last three parameters. We also check that - * the library version is compatible in case we are using dynamically - * linked libraries. - */ - *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, - png_voidp user_error_ptr, user_error_fn, user_warning_fn); - - if (*png_ptr == NULL) - { - *info_ptr = NULL; - return (ERROR); - } - - *info_ptr = png_create_info_struct(png_ptr); - - if (*info_ptr == NULL) - { - png_destroy_read_struct(png_ptr, info_ptr, NULL); - return (ERROR); - } - - if (setjmp(png_jmpbuf((*png_ptr)))) - { - png_destroy_read_struct(png_ptr, info_ptr, NULL); - return (ERROR); - } - - /* This one's new. You will need to provide all three - * function callbacks, even if you aren't using them all. - * If you aren't using all functions, you can specify NULL - * parameters. Even when all three functions are NULL, - * you need to call png_set_progressive_read_fn(). - * These functions shouldn't be dependent on global or - * static variables if you are decoding several images - * simultaneously. You should store stream specific data - * in a separate struct, given as the second parameter, - * and retrieve the pointer from inside the callbacks using - * the function png_get_progressive_ptr(png_ptr). - */ - png_set_progressive_read_fn(*png_ptr, (void *)stream_data, - info_callback, row_callback, end_callback); - - return (OK); -} - -int -process_data(png_structp *png_ptr, png_infop *info_ptr, - png_bytep buffer, png_uint_32 length) -{ - if (setjmp(png_jmpbuf((*png_ptr)))) - { - /* Free the png_ptr and info_ptr memory on error */ - png_destroy_read_struct(png_ptr, info_ptr, NULL); - return (ERROR); - } - - /* This one's new also. Simply give it chunks of data as - * they arrive from the data stream (in order, of course). - * On segmented machines, don't give it any more than 64K. - * The library seems to run fine with sizes of 4K, although - * you can give it much less if necessary (I assume you can - * give it chunks of 1 byte, but I haven't tried with less - * than 256 bytes yet). When this function returns, you may - * want to display any rows that were generated in the row - * callback, if you aren't already displaying them there. - */ - png_process_data(*png_ptr, *info_ptr, buffer, length); - return (OK); -} - -info_callback(png_structp png_ptr, png_infop info) -{ - /* Do any setup here, including setting any of the transformations - * mentioned in the Reading PNG files section. For now, you _must_ - * call either png_start_read_image() or png_read_update_info() - * after all the transformations are set (even if you don't set - * any). You may start getting rows before png_process_data() - * returns, so this is your last chance to prepare for that. - */ -} - -row_callback(png_structp png_ptr, png_bytep new_row, - png_uint_32 row_num, int pass) -{ - /* - * This function is called for every row in the image. If the - * image is interlaced, and you turned on the interlace handler, - * this function will be called for every row in every pass. - * - * In this function you will receive a pointer to new row data from - * libpng called new_row that is to replace a corresponding row (of - * the same data format) in a buffer allocated by your application. - * - * The new row data pointer "new_row" may be NULL, indicating there is - * no new data to be replaced (in cases of interlace loading). - * - * If new_row is not NULL then you need to call - * png_progressive_combine_row() to replace the corresponding row as - * shown below: - */ - - /* Get pointer to corresponding row in our - * PNG read buffer. - */ - png_bytep old_row = ((png_bytep *)our_data)[row_num]; - -#ifdef PNG_READ_INTERLACING_SUPPORTED - /* If both rows are allocated then copy the new row - * data to the corresponding row data. - */ - if ((old_row != NULL) && (new_row != NULL)) - png_progressive_combine_row(png_ptr, old_row, new_row); - - /* - * The rows and passes are called in order, so you don't really - * need the row_num and pass, but I'm supplying them because it - * may make your life easier. - * - * For the non-NULL rows of interlaced images, you must call - * png_progressive_combine_row() passing in the new row and the - * old row, as demonstrated above. You can call this function for - * NULL rows (it will just return) and for non-interlaced images - * (it just does the memcpy for you) if it will make the code - * easier. Thus, you can just do this for all cases: - */ - - png_progressive_combine_row(png_ptr, old_row, new_row); - - /* where old_row is what was displayed for previous rows. Note - * that the first pass (pass == 0 really) will completely cover - * the old row, so the rows do not have to be initialized. After - * the first pass (and only for interlaced images), you will have - * to pass the current row as new_row, and the function will combine - * the old row and the new row. - */ -#endif /* PNG_READ_INTERLACING_SUPPORTED */ -} - -end_callback(png_structp png_ptr, png_infop info) -{ - /* This function is called when the whole image has been read, - * including any chunks after the image (up to and including - * the IEND). You will usually have the same info chunk as you - * had in the header, although some data may have been added - * to the comments and time fields. - * - * Most people won't do much here, perhaps setting a flag that - * marks the image as finished. - */ -} - -/* Write a png file */ -void write_png(char *file_name /* , ... other image information ... */) -{ - FILE *fp; - png_structp png_ptr; - png_infop info_ptr; - png_colorp palette; - - /* Open the file */ - fp = fopen(file_name, "wb"); - if (fp == NULL) - return (ERROR); - - /* Create and initialize the png_struct with the desired error handler - * functions. If you want to use the default stderr and longjump method, - * you can supply NULL for the last three parameters. We also check that - * the library version is compatible with the one used at compile time, - * in case we are using dynamically linked libraries. REQUIRED. - */ - png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, - png_voidp user_error_ptr, user_error_fn, user_warning_fn); - - if (png_ptr == NULL) - { - fclose(fp); - return (ERROR); - } - - /* Allocate/initialize the image information data. REQUIRED */ - info_ptr = png_create_info_struct(png_ptr); - if (info_ptr == NULL) - { - fclose(fp); - png_destroy_write_struct(&png_ptr, NULL); - return (ERROR); - } - - /* Set error handling. REQUIRED if you aren't supplying your own - * error handling functions in the png_create_write_struct() call. - */ - if (setjmp(png_jmpbuf(png_ptr))) - { - /* If we get here, we had a problem writing the file */ - fclose(fp); - png_destroy_write_struct(&png_ptr, &info_ptr); - return (ERROR); - } - - /* One of the following I/O initialization functions is REQUIRED */ - -#ifdef streams /* I/O initialization method 1 */ - /* Set up the output control if you are using standard C streams */ - png_init_io(png_ptr, fp); - -#else no_streams /* I/O initialization method 2 */ - /* If you are using replacement write functions, instead of calling - * png_init_io() here you would call - */ - png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn, - user_IO_flush_function); - /* where user_io_ptr is a structure you want available to the callbacks */ -#endif no_streams /* Only use one initialization method */ - -#ifdef hilevel - /* This is the easy way. Use it if you already have all the - * image info living in the structure. You could "|" many - * PNG_TRANSFORM flags into the png_transforms integer here. - */ - png_write_png(png_ptr, info_ptr, png_transforms, NULL); - -#else - /* This is the hard way */ - - /* Set the image information here. Width and height are up to 2^31, - * bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on - * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY, - * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB, - * or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or - * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST - * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE. REQUIRED - */ - png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???, - PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - /* Set the palette if there is one. REQUIRED for indexed-color images */ - palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH - * (sizeof (png_color))); - /* ... Set palette colors ... */ - png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH); - /* You must not free palette here, because png_set_PLTE only makes a link to - * the palette that you malloced. Wait until you are about to destroy - * the png structure. - */ - - /* Optional significant bit (sBIT) chunk */ - png_color_8 sig_bit; - - /* If we are dealing with a grayscale image then */ - sig_bit.gray = true_bit_depth; - - /* Otherwise, if we are dealing with a color image then */ - sig_bit.red = true_red_bit_depth; - sig_bit.green = true_green_bit_depth; - sig_bit.blue = true_blue_bit_depth; - - /* If the image has an alpha channel then */ - sig_bit.alpha = true_alpha_bit_depth; - - png_set_sBIT(png_ptr, info_ptr, &sig_bit); - - - /* Optional gamma chunk is strongly suggested if you have any guess - * as to the correct gamma of the image. - */ - png_set_gAMA(png_ptr, info_ptr, gamma); - - /* Optionally write comments into the image */ - { - png_text text_ptr[3]; - - char key0[]="Title"; - char text0[]="Mona Lisa"; - text_ptr[0].key = key0; - text_ptr[0].text = text0; - text_ptr[0].compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr[0].itxt_length = 0; - text_ptr[0].lang = NULL; - text_ptr[0].lang_key = NULL; - - char key1[]="Author"; - char text1[]="Leonardo DaVinci"; - text_ptr[1].key = key1; - text_ptr[1].text = text1; - text_ptr[1].compression = PNG_TEXT_COMPRESSION_NONE; - text_ptr[1].itxt_length = 0; - text_ptr[1].lang = NULL; - text_ptr[1].lang_key = NULL; - - char key2[]="Description"; - char text2[]=""; - text_ptr[2].key = key2; - text_ptr[2].text = text2; - text_ptr[2].compression = PNG_TEXT_COMPRESSION_zTXt; - text_ptr[2].itxt_length = 0; - text_ptr[2].lang = NULL; - text_ptr[2].lang_key = NULL; - - png_set_text(write_ptr, write_info_ptr, text_ptr, 3); - } - - /* Other optional chunks like cHRM, bKGD, tRNS, tIME, oFFs, pHYs */ - - /* Note that if sRGB is present the gAMA and cHRM chunks must be ignored - * on read and, if your application chooses to write them, they must - * be written in accordance with the sRGB profile - */ - - /* Write the file header information. REQUIRED */ - png_write_info(png_ptr, info_ptr); - - /* If you want, you can write the info in two steps, in case you need to - * write your private chunk ahead of PLTE: - * - * png_write_info_before_PLTE(write_ptr, write_info_ptr); - * write_my_chunk(); - * png_write_info(png_ptr, info_ptr); - * - * However, given the level of known- and unknown-chunk support in 1.2.0 - * and up, this should no longer be necessary. - */ - - /* Once we write out the header, the compression type on the text - * chunks gets changed to PNG_TEXT_COMPRESSION_NONE_WR or - * PNG_TEXT_COMPRESSION_zTXt_WR, so it doesn't get written out again - * at the end. - */ - - /* Set up the transformations you want. Note that these are - * all optional. Only call them if you want them. - */ - - /* Invert monochrome pixels */ - png_set_invert_mono(png_ptr); - - /* Shift the pixels up to a legal bit depth and fill in - * as appropriate to correctly scale the image. - */ - png_set_shift(png_ptr, &sig_bit); - - /* Pack pixels into bytes */ - png_set_packing(png_ptr); - - /* Swap location of alpha bytes from ARGB to RGBA */ - png_set_swap_alpha(png_ptr); - - /* Get rid of filler (OR ALPHA) bytes, pack XRGB/RGBX/ARGB/RGBA into - * RGB (4 channels -> 3 channels). The second parameter is not used. - */ - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); - - /* Flip BGR pixels to RGB */ - png_set_bgr(png_ptr); - - /* Swap bytes of 16-bit files to most significant byte first */ - png_set_swap(png_ptr); - - /* Swap bits of 1, 2, 4 bit packed pixel formats */ - png_set_packswap(png_ptr); - - /* Turn on interlace handling if you are not using png_write_image() */ - if (interlacing != 0) - number_passes = png_set_interlace_handling(png_ptr); - - else - number_passes = 1; - - /* The easiest way to write the image (you may have a different memory - * layout, however, so choose what fits your needs best). You need to - * use the first method if you aren't handling interlacing yourself. - */ - png_uint_32 k, height, width; - - /* In this example, "image" is a one-dimensional array of bytes */ - png_byte image[height*width*bytes_per_pixel]; - - png_bytep row_pointers[height]; - - if (height > PNG_UINT_32_MAX/(sizeof (png_bytep))) - png_error (png_ptr, "Image is too tall to process in memory"); - - /* Set up pointers into your "image" byte array */ - for (k = 0; k < height; k++) - row_pointers[k] = image + k*width*bytes_per_pixel; - - /* One of the following output methods is REQUIRED */ - -#ifdef entire /* Write out the entire image data in one call */ - png_write_image(png_ptr, row_pointers); - - /* The other way to write the image - deal with interlacing */ - -#else no_entire /* Write out the image data by one or more scanlines */ - - /* The number of passes is either 1 for non-interlaced images, - * or 7 for interlaced images. - */ - for (pass = 0; pass < number_passes; pass++) - { - /* Write a few rows at a time. */ - png_write_rows(png_ptr, &row_pointers[first_row], number_of_rows); - - /* If you are only writing one row at a time, this works */ - for (y = 0; y < height; y++) - png_write_rows(png_ptr, &row_pointers[y], 1); - } -#endif no_entire /* Use only one output method */ - - /* You can write optional chunks like tEXt, zTXt, and tIME at the end - * as well. Shouldn't be necessary in 1.2.0 and up as all the public - * chunks are supported and you can use png_set_unknown_chunks() to - * register unknown chunks into the info structure to be written out. - */ - - /* It is REQUIRED to call this to finish writing the rest of the file */ - png_write_end(png_ptr, info_ptr); -#endif hilevel - - /* If you png_malloced a palette, free it here (don't free info_ptr->palette, - * as recommended in versions 1.0.5m and earlier of this example; if - * libpng mallocs info_ptr->palette, libpng will free it). If you - * allocated it with malloc() instead of png_malloc(), use free() instead - * of png_free(). - */ - png_free(png_ptr, palette); - palette = NULL; - - /* Similarly, if you png_malloced any data that you passed in with - * png_set_something(), such as a hist or trans array, free it here, - * when you can be sure that libpng is through with it. - */ - png_free(png_ptr, trans); - trans = NULL; - /* Whenever you use png_free() it is a good idea to set the pointer to - * NULL in case your application inadvertently tries to png_free() it - * again. When png_free() sees a NULL it returns without action, thus - * avoiding the double-free security problem. - */ - - /* Clean up after the write, and free any memory allocated */ - png_destroy_write_struct(&png_ptr, &info_ptr); - - /* Close the file */ - fclose(fp); - - /* That's it */ - return (OK); -} - -#endif /* if 0 */ diff --git a/png/libpng-config.in b/png/libpng-config.in deleted file mode 100755 index 69bf8e3..0000000 --- a/png/libpng-config.in +++ /dev/null @@ -1,127 +0,0 @@ -#! /bin/sh - -# libpng-config -# provides configuration info for libpng. - -# Copyright (C) 2002, 2004, 2006, 2007 Glenn Randers-Pehrson - -# This code is released under the libpng license. -# For conditions of distribution and use, see the disclaimer -# and license in png.h - -# Modeled after libxml-config. - -version="@PNGLIB_VERSION@" -prefix="@prefix@" -exec_prefix="@exec_prefix@" -libdir="@libdir@" -includedir="@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@" -libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@" -all_libs="-lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ @LIBS@" -I_opts="-I${includedir}" -L_opts="-L${libdir}" -R_opts="" -cppflags="" -ccopts="" -ldopts="" - -usage() -{ - cat < - Copyright (c) 1998-2014 Glenn Randers-Pehrson - - This document is released under the libpng license. - For conditions of distribution and use, see the disclaimer - and license in png.h - - Based on: - - libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014 - Updated and distributed by Glenn Randers-Pehrson - Copyright (c) 1998-2014 Glenn Randers-Pehrson - - libpng 1.0 beta 6 - version 0.96 - May 28, 1997 - Updated and distributed by Andreas Dilger - Copyright (c) 1996, 1997 Andreas Dilger - - libpng 1.0 beta 2 - version 0.88 - January 26, 1996 - For conditions of distribution and use, see copyright - notice in png.h. Copyright (c) 1995, 1996 Guy Eric - Schalnat, Group 42, Inc. - - Updated/rewritten per request in the libpng FAQ - Copyright (c) 1995, 1996 Frank J. T. Wojcik - December 18, 1995 & January 20, 1996 - - TABLE OF CONTENTS - - I. Introduction - II. Structures - III. Reading - IV. Writing - V. Simplified API - VI. Modifying/Customizing libpng - VII. MNG support - VIII. Changes to Libpng from version 0.88 - IX. Changes to Libpng from version 1.0.x to 1.2.x - X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x - XI. Changes to Libpng from version 1.4.x to 1.5.x - XII. Changes to Libpng from version 1.5.x to 1.6.x - XIII. Detecting libpng - XIV. Source code repository - XV. Coding style - XVI. Y2K Compliance in libpng - -I. Introduction - -This file describes how to use and modify the PNG reference library -(known as libpng) for your own use. In addition to this -file, example.c is a good starting point for using the library, as -it is heavily commented and should include everything most people -will need. We assume that libpng is already installed; see the -INSTALL file for instructions on how to configure and install libpng. - -For examples of libpng usage, see the files "example.c", "pngtest.c", -and the files in the "contrib" directory, all of which are included in -the libpng distribution. - -Libpng was written as a companion to the PNG specification, as a way -of reducing the amount of time and effort it takes to support the PNG -file format in application programs. - -The PNG specification (second edition), November 2003, is available as -a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at -. It is technically equivalent -to the PNG specification (second edition) but has some additional material. - -The PNG-1.0 specification is available -as RFC 2083 and as a -W3C Recommendation . - -Some additional chunks are described in the special-purpose public chunks -documents at . - -Other information -about PNG, and the latest version of libpng, can be found at the PNG home -page, . - -Most users will not have to modify the library significantly; advanced -users may want to modify it more. All attempts were made to make it as -complete as possible, while keeping the code easy to understand. -Currently, this library only supports C. Support for other languages -is being considered. - -Libpng has been designed to handle multiple sessions at one time, -to be easily modifiable, to be portable to the vast majority of -machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy -to use. The ultimate goal of libpng is to promote the acceptance of -the PNG file format in whatever way possible. While there is still -work to be done (see the TODO file), libpng should cover the -majority of the needs of its users. - -Libpng uses zlib for its compression and decompression of PNG files. -Further information about zlib, and the latest version of zlib, can -be found at the zlib home page, . -The zlib compression utility is a general purpose utility that is -useful for more than PNG files, and can be used without libpng. -See the documentation delivered with zlib for more details. -You can usually find the source files for the zlib utility wherever you -find the libpng source files. - -Libpng is thread safe, provided the threads are using different -instances of the structures. Each thread should have its own -png_struct and png_info instances, and thus its own image. -Libpng does not protect itself against two threads using the -same instance of a structure. - -II. Structures - -There are two main structures that are important to libpng, png_struct -and png_info. Both are internal structures that are no longer exposed -in the libpng interface (as of libpng 1.5.0). - -The png_info structure is designed to provide information about the -PNG file. At one time, the fields of png_info were intended to be -directly accessible to the user. However, this tended to cause problems -with applications using dynamically loaded libraries, and as a result -a set of interface functions for png_info (the png_get_*() and png_set_*() -functions) was developed, and direct access to the png_info fields was -deprecated.. - -The png_struct structure is the object used by the library to decode a -single image. As of 1.5.0 this structure is also not exposed. - -Almost all libpng APIs require a pointer to a png_struct as the first argument. -Many (in particular the png_set and png_get APIs) also require a pointer -to png_info as the second argument. Some application visible macros -defined in png.h designed for basic data access (reading and writing -integers in the PNG format) don't take a png_info pointer, but it's almost -always safe to assume that a (png_struct*) has to be passed to call an API -function. - -You can have more than one png_info structure associated with an image, -as illustrated in pngtest.c, one for information valid prior to the -IDAT chunks and another (called "end_info" below) for things after them. - -The png.h header file is an invaluable reference for programming with libpng. -And while I'm on the topic, make sure you include the libpng header file: - -#include - -and also (as of libpng-1.5.0) the zlib header file, if you need it: - -#include - -Types - -The png.h header file defines a number of integral types used by the -APIs. Most of these are fairly obvious; for example types corresponding -to integers of particular sizes and types for passing color values. - -One exception is how non-integral numbers are handled. For application -convenience most APIs that take such numbers have C (double) arguments; -however, internally PNG, and libpng, use 32 bit signed integers and encode -the value by multiplying by 100,000. As of libpng 1.5.0 a convenience -macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point) -which is simply (png_int_32). - -All APIs that take (double) arguments also have a matching API that -takes the corresponding fixed point integer arguments. The fixed point -API has the same name as the floating point one with "_fixed" appended. -The actual range of values permitted in the APIs is frequently less than -the full range of (png_fixed_point) (-21474 to +21474). When APIs require -a non-negative argument the type is recorded as png_uint_32 above. Consult -the header file and the text below for more information. - -Special care must be take with sCAL chunk handling because the chunk itself -uses non-integral values encoded as strings containing decimal floating point -numbers. See the comments in the header file. - -Configuration - -The main header file function declarations are frequently protected by C -preprocessing directives of the form: - - #ifdef PNG_feature_SUPPORTED - declare-function - #endif - ... - #ifdef PNG_feature_SUPPORTED - use-function - #endif - -The library can be built without support for these APIs, although a -standard build will have all implemented APIs. Application programs -should check the feature macros before using an API for maximum -portability. From libpng 1.5.0 the feature macros set during the build -of libpng are recorded in the header file "pnglibconf.h" and this file -is always included by png.h. - -If you don't need to change the library configuration from the default, skip to -the next section ("Reading"). - -Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all -of the build project files in the 'projects' directory simply copy -scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build -systems do not permit easy auto-configuration of the library - they only -support the default configuration. - -The easiest way to make minor changes to the libpng configuration when -auto-configuration is supported is to add definitions to the command line -using (typically) CPPFLAGS. For example: - -CPPFLAGS=-DPNG_NO_FLOATING_ARITHMETIC - -will change the internal libpng math implementation for gamma correction and -other arithmetic calculations to fixed point, avoiding the need for fast -floating point support. The result can be seen in the generated pnglibconf.h - -make sure it contains the changed feature macro setting. - -If you need to make more extensive configuration changes - more than one or two -feature macro settings - you can either add -DPNG_USER_CONFIG to the build -command line and put a list of feature macro settings in pngusr.h or you can set -DFA_XTRA (a makefile variable) to a file containing the same information in the -form of 'option' settings. - -A. Changing pnglibconf.h - -A variety of methods exist to build libpng. Not all of these support -reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be -rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand. - -Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to -pnglibconf.h and changing the lines defining the supported features, paying -very close attention to the 'option' information in scripts/pnglibconf.dfa -that describes those features and their requirements. This is easy to get -wrong. - -B. Configuration using DFA_XTRA - -Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later -variant such as 'nawk' or 'gawk', is available. The configure build will -automatically find an appropriate awk and build pnglibconf.h. -The scripts/pnglibconf.mak file contains a set of make rules for doing the -same thing if configure is not used, and many of the makefiles in the scripts -directory use this approach. - -When rebuilding simply write a new file containing changed options and set -DFA_XTRA to the name of this file. This causes the build to append the new file -to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines -of the following forms: - -everything = off - -This turns all optional features off. Include it at the start of pngusr.dfa to -make it easier to build a minimal configuration. You will need to turn at least -some features on afterward to enable either reading or writing code, or both. - -option feature on -option feature off - -Enable or disable a single feature. This will automatically enable other -features required by a feature that is turned on or disable other features that -require a feature which is turned off. Conflicting settings will cause an error -message to be emitted by awk. - -setting feature default value - -Changes the default value of setting 'feature' to 'value'. There are a small -number of settings listed at the top of pnglibconf.h, they are documented in the -source code. Most of these values have performance implications for the library -but most of them have no visible effect on the API. Some can also be overridden -from the API. - -This method of building a customized pnglibconf.h is illustrated in -contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and -pngusr.dfa in these directories. - -C. Configuration using PNG_USER_CONFIG - -If -DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built, -the file pngusr.h will automatically be included before the options in -scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only -macro definitions turning features on or off or setting settings. - -Apart from the global setting "everything = off" all the options listed above -can be set using macros in pngusr.h: - -#define PNG_feature_SUPPORTED - -is equivalent to: - -option feature on - -#define PNG_NO_feature - -is equivalent to: - -option feature off - -#define PNG_feature value - -is equivalent to: - -setting feature default value - -Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the -pngusr file you supply override the contents of scripts/pnglibconf.dfa - -If confusing or incomprehensible behavior results it is possible to -examine the intermediate file pnglibconf.dfn to find the full set of -dependency information for each setting and option. Simply locate the -feature in the file and read the C comments that precede it. - -This method is also illustrated in the contrib/pngminim/* makefiles and -pngusr.h. - -III. Reading - -We'll now walk you through the possible functions to call when reading -in a PNG file sequentially, briefly explaining the syntax and purpose -of each one. See example.c and png.h for more detail. While -progressive reading is covered in the next section, you will still -need some of the functions discussed in this section to read a PNG -file. - -Setup - -You will want to do the I/O initialization(*) before you get into libpng, -so if it doesn't work, you don't have much to undo. Of course, you -will also want to insure that you are, in fact, dealing with a PNG -file. Libpng provides a simple check to see if a file is a PNG file. -To use it, pass in the first 1 to 8 bytes of the file to the function -png_sig_cmp(), and it will return 0 (false) if the bytes match the -corresponding bytes of the PNG signature, or nonzero (true) otherwise. -Of course, the more bytes you pass in, the greater the accuracy of the -prediction. - -If you are intending to keep the file pointer open for use in libpng, -you must ensure you don't read more than 8 bytes from the beginning -of the file, and you also have to make a call to png_set_sig_bytes_read() -with the number of bytes you read from the beginning. Libpng will -then only check the bytes (if any) that your program didn't read. - -(*): If you are not using the standard I/O functions, you will need -to replace them with custom functions. See the discussion under -Customizing libpng. - - - FILE *fp = fopen(file_name, "rb"); - if (!fp) - { - return (ERROR); - } - - fread(header, 1, number, fp); - is_png = !png_sig_cmp(header, 0, number); - - if (!is_png) - { - return (NOT_PNG); - } - - -Next, png_struct and png_info need to be allocated and initialized. In -order to ensure that the size of these structures is correct even with a -dynamically linked libpng, there are functions to initialize and -allocate the structures. We also pass the library version, optional -pointers to error handling functions, and a pointer to a data struct for -use by the error functions, if necessary (the pointer and functions can -be NULL if the default error handlers are to be used). See the section -on Changes to Libpng below regarding the old initialization functions. -The structure allocation functions quietly return NULL if they fail to -create the structure, so your application should check for that. - - png_structp png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, - (png_infopp)NULL, (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use -png_create_read_struct_2() instead of png_create_read_struct(): - - png_structp png_ptr = png_create_read_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -The error handling routines passed to png_create_read_struct() -and the memory alloc/free routines passed to png_create_struct_2() -are only necessary if you are not using the libpng supplied error -handling and memory alloc/free functions. - -When libpng encounters an error, it expects to longjmp back -to your routine. Therefore, you will need to call setjmp and pass -your png_jmpbuf(png_ptr). If you read the file from different -routines, you will need to update the longjmp buffer every time you enter -a new routine that will call a png_*() function. - -See your documentation of setjmp/longjmp for your compiler for more -information on setjmp/longjmp. See the discussion on libpng error -handling in the Customizing Libpng section below for more information -on the libpng error handling. If an error occurs, and libpng longjmp's -back to your setjmp, you will want to call png_destroy_read_struct() to -free any memory. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - fclose(fp); - return (ERROR); - } - -Pass (png_infopp)NULL instead of &end_info if you didn't create -an end_info structure. - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_NO_SETJMP, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -You can #define PNG_ABORT() to a function that does something -more useful than abort(), as long as your function does not -return. - -Now you need to set up the input code. The default for libpng is to -use the C function fread(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. If you wish to handle reading data in another -way, you need not call the png_init_io() function, but you must then -implement the libpng I/O methods discussed in the Customizing Libpng -section below. - - png_init_io(png_ptr, fp); - -If you had previously opened the file and read any of the signature from -the beginning in order to see if this was a PNG file, you need to let -libpng know that there are some bytes missing from the start of the file. - - png_set_sig_bytes(png_ptr, number); - -You can change the zlib compression buffer size to be used while -reading compressed data with - - png_set_compression_buffer_size(png_ptr, buffer_size); - -where the default size is 8192 bytes. Note that the buffer size -is changed immediately and the buffer is reallocated immediately, -instead of setting a flag to be acted upon later. - -If you want CRC errors to be handled in a different manner than -the default, use - - png_set_crc_action(png_ptr, crit_action, ancil_action); - -The values for png_set_crc_action() say how libpng is to handle CRC errors in -ancillary and critical chunks, and whether to use the data contained -therein. Note that it is impossible to "discard" data in a critical -chunk. - -Choices for (int) crit_action are - PNG_CRC_DEFAULT 0 error/quit - PNG_CRC_ERROR_QUIT 1 error/quit - PNG_CRC_WARN_USE 3 warn/use data - PNG_CRC_QUIET_USE 4 quiet/use data - PNG_CRC_NO_CHANGE 5 use the current value - -Choices for (int) ancil_action are - PNG_CRC_DEFAULT 0 error/quit - PNG_CRC_ERROR_QUIT 1 error/quit - PNG_CRC_WARN_DISCARD 2 warn/discard data - PNG_CRC_WARN_USE 3 warn/use data - PNG_CRC_QUIET_USE 4 quiet/use data - PNG_CRC_NO_CHANGE 5 use the current value - -Setting up callback code - -You can set up a callback function to handle any unknown chunks in the -input stream. You must supply the function - - read_chunk_callback(png_structp png_ptr, - png_unknown_chunkp chunk); - { - /* The unknown chunk structure contains your - chunk data, along with similar data for any other - unknown chunks: */ - - png_byte name[5]; - png_byte *data; - png_size_t size; - - /* Note that libpng has already taken care of - the CRC handling */ - - /* put your code here. Search for your chunk in the - unknown chunk structure, process it, and return one - of the following: */ - - return (-n); /* chunk had an error */ - return (0); /* did not recognize */ - return (n); /* success */ - } - -(You can give your function another name that you like instead of -"read_chunk_callback") - -To inform libpng about your function, use - - png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr, - read_chunk_callback); - -This names not only the callback function, but also a user pointer that -you can retrieve with - - png_get_user_chunk_ptr(png_ptr); - -If you call the png_set_read_user_chunk_fn() function, then all unknown -chunks which the callback does not handle will be saved when read. You can -cause them to be discarded by returning '1' ("handled") instead of '0'. This -behavior will change in libpng 1.7 and the default handling set by the -png_set_keep_unknown_chunks() function, described below, will be used when the -callback returns 0. If you want the existing behavior you should set the global -default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current -versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the -default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0. - -At this point, you can set up a callback function that will be -called after each row has been read, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void read_row_callback(png_structp png_ptr, - png_uint_32 row, int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "read_row_callback") - -To inform libpng about your function, use - - png_set_read_status_fn(png_ptr, read_row_callback); - -When this function is called the row has already been completely processed and -the 'row' and 'pass' refer to the next row to be handled. For the -non-interlaced case the row that was just handled is simply one less than the -passed in row number, and pass will always be 0. For the interlaced case the -same applies unless the row value is 0, in which case the row just handled was -the last one from one of the preceding passes. Because interlacing may skip a -pass you cannot be sure that the preceding pass is just 'pass-1', if you really -need to know what the last pass is record (row,pass) from the callback and use -the last recorded value each time. - -As with the user transform you can find the output row using the -PNG_ROW_FROM_PASS_ROW macro. - -Unknown-chunk handling - -Now you get to set the way the library processes unknown chunks in the -input PNG stream. Both known and unknown chunks will be read. Normal -behavior is that known chunks will be parsed into information in -various info_ptr members while unknown chunks will be discarded. This -behavior can be wasteful if your application will never use some known -chunk types. To change this, you can call: - - png_set_keep_unknown_chunks(png_ptr, keep, - chunk_list, num_chunks); - - keep - 0: default unknown chunk handling - 1: ignore; do not keep - 2: keep only if safe-to-copy - 3: keep even if unsafe-to-copy - - You can use these definitions: - PNG_HANDLE_CHUNK_AS_DEFAULT 0 - PNG_HANDLE_CHUNK_NEVER 1 - PNG_HANDLE_CHUNK_IF_SAFE 2 - PNG_HANDLE_CHUNK_ALWAYS 3 - - chunk_list - list of chunks affected (a byte string, - five bytes per chunk, NULL or '\0' if - num_chunks is positive; ignored if - numchunks <= 0). - - num_chunks - number of chunks affected; if 0, all - unknown chunks are affected. If positive, - only the chunks in the list are affected, - and if negative all unknown chunks and - all known chunks except for the IHDR, - PLTE, tRNS, IDAT, and IEND chunks are - affected. - -Unknown chunks declared in this way will be saved as raw data onto a -list of png_unknown_chunk structures. If a chunk that is normally -known to libpng is named in the list, it will be handled as unknown, -according to the "keep" directive. If a chunk is named in successive -instances of png_set_keep_unknown_chunks(), the final instance will -take precedence. The IHDR and IEND chunks should not be named in -chunk_list; if they are, libpng will process them normally anyway. -If you know that your application will never make use of some particular -chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below. - -Here is an example of the usage of png_set_keep_unknown_chunks(), -where the private "vpAg" chunk will later be processed by a user chunk -callback function: - - png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; - - #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - png_byte unused_chunks[]= - { - 104, 73, 83, 84, (png_byte) '\0', /* hIST */ - 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ - 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ - 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ - 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ - 116, 73, 77, 69, (png_byte) '\0', /* tIME */ - }; - #endif - - ... - - #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* ignore all unknown chunks - * (use global setting "2" for libpng16 and earlier): - */ - png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0); - - /* except for vpAg: */ - png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1); - - /* also ignore unused known chunks: */ - png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks, - (int)(sizeof unused_chunks)/5); - #endif - -User limits - -The PNG specification allows the width and height of an image to be as -large as 2^31-1 (0x7fffffff), or about 2.147 billion rows and columns. -Since very few applications really need to process such large images, -we have imposed an arbitrary 1-million limit on rows and columns. -Larger images will be rejected immediately with a png_error() call. If -you wish to change this limit, you can use - - png_set_user_limits(png_ptr, width_max, height_max); - -to set your own limits, or use width_max = height_max = 0x7fffffffL -to allow all valid dimensions (libpng may reject some very large images -anyway because of potential buffer overflow conditions). - -You should put this statement after you create the PNG structure and -before calling png_read_info(), png_read_png(), or png_process_data(). - -When writing a PNG datastream, put this statement before calling -png_write_info() or png_write_png(). - -If you need to retrieve the limits that are being applied, use - - width_max = png_get_user_width_max(png_ptr); - height_max = png_get_user_height_max(png_ptr); - -The PNG specification sets no limit on the number of ancillary chunks -allowed in a PNG datastream. You can impose a limit on the total number -of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with - - png_set_chunk_cache_max(png_ptr, user_chunk_cache_max); - -where 0x7fffffffL means unlimited. You can retrieve this limit with - - chunk_cache_max = png_get_chunk_cache_max(png_ptr); - -You can also set a limit on the amount of memory that a compressed chunk -other than IDAT can occupy, with - - png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max); - -and you can retrieve the limit with - - chunk_malloc_max = png_get_chunk_malloc_max(png_ptr); - -Any chunks that would cause either of these limits to be exceeded will -be ignored. - -Information about your system - -If you intend to display the PNG or to incorporate it in other image data you -need to tell libpng information about your display or drawing surface so that -libpng can convert the values in the image to match the display. - -From libpng-1.5.4 this information can be set before reading the PNG file -header. In earlier versions png_set_gamma() existed but behaved incorrectly if -called before the PNG file header had been read and png_set_alpha_mode() did not -exist. - -If you need to support versions prior to libpng-1.5.4 test the version number -as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures -described in the appropriate manual page. - -You give libpng the encoding expected by your system expressed as a 'gamma' -value. You can also specify a default encoding for the PNG file in -case the required information is missing from the file. By default libpng -assumes that the PNG data matches your system, to keep this default call: - - png_set_gamma(png_ptr, screen_gamma, output_gamma); - -or you can use the fixed point equivalent: - - png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, - PNG_FP_1*output_gamma); - -If you don't know the gamma for your system it is probably 2.2 - a good -approximation to the IEC standard for display systems (sRGB). If images are -too contrasty or washed out you got the value wrong - check your system -documentation! - -Many systems permit the system gamma to be changed via a lookup table in the -display driver, a few systems, including older Macs, change the response by -default. As of 1.5.4 three special values are available to handle common -situations: - - PNG_DEFAULT_sRGB: Indicates that the system conforms to the - IEC 61966-2-1 standard. This matches almost - all systems. - PNG_GAMMA_MAC_18: Indicates that the system is an older - (pre Mac OS 10.6) Apple Macintosh system with - the default settings. - PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates - that the system expects data with no gamma - encoding. - -You would use the linear (unencoded) value if you need to process the pixel -values further because this avoids the need to decode and re-encode each -component value whenever arithmetic is performed. A lot of graphics software -uses linear values for this reason, often with higher precision component values -to preserve overall accuracy. - - -The output_gamma value expresses how to decode the output values, not how -they are encoded. The values used correspond to the normal numbers used to -describe the overall gamma of a computer display system; for example 2.2 for -an sRGB conformant system. The values are scaled by 100000 in the _fixed -version of the API (so 220000 for sRGB.) - -The inverse of the value is always used to provide a default for the PNG file -encoding if it has no gAMA chunk and if png_set_gamma() has not been called -to override the PNG gamma information. - -When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode -opaque pixels however pixels with lower alpha values are not encoded, -regardless of the output gamma setting. - -When the standard Porter Duff handling is requested with mode 1 the output -encoding is set to be linear and the output_gamma value is only relevant -as a default for input data that has no gamma information. The linear output -encoding will be overridden if png_set_gamma() is called - the results may be -highly unexpected! - -The following numbers are derived from the sRGB standard and the research -behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of -0.45455 (1/2.2) for PNG. The value implicitly includes any viewing -correction required to take account of any differences in the color -environment of the original scene and the intended display environment; the -value expresses how to *decode* the image for display, not how the original -data was *encoded*. - -sRGB provides a peg for the PNG standard by defining a viewing environment. -sRGB itself, and earlier TV standards, actually use a more complex transform -(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is -limited to simple power laws.) By saying that an image for direct display on -an sRGB conformant system should be stored with a gAMA chunk value of 45455 -(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification -makes it possible to derive values for other display systems and -environments. - -The Mac value is deduced from the sRGB based on an assumption that the actual -extra viewing correction used in early Mac display systems was implemented as -a power 1.45 lookup table. - -Any system where a programmable lookup table is used or where the behavior of -the final display device characteristics can be changed requires system -specific code to obtain the current characteristic. However this can be -difficult and most PNG gamma correction only requires an approximate value. - -By default, if png_set_alpha_mode() is not called, libpng assumes that all -values are unencoded, linear, values and that the output device also has a -linear characteristic. This is only very rarely correct - it is invariably -better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the -default if you don't know what the right answer is! - -The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS -10.6) which used a correction table to implement a somewhat lower gamma on an -otherwise sRGB system. - -Both these values are reserved (not simple gamma values) in order to allow -more precise correction internally in the future. - -NOTE: the values can be passed to either the fixed or floating -point APIs, but the floating point API will also accept floating point -values. - -The second thing you may need to tell libpng about is how your system handles -alpha channel information. Some, but not all, PNG files contain an alpha -channel. To display these files correctly you need to compose the data onto a -suitable background, as described in the PNG specification. - -Libpng only supports composing onto a single color (using png_set_background; -see below). Otherwise you must do the composition yourself and, in this case, -you may need to call png_set_alpha_mode: - - #if PNG_LIBPNG_VER >= 10504 - png_set_alpha_mode(png_ptr, mode, screen_gamma); - #else - png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma); - #endif - -The screen_gamma value is the same as the argument to png_set_gamma; however, -how it affects the output depends on the mode. png_set_alpha_mode() sets the -file gamma default to 1/screen_gamma, so normally you don't need to call -png_set_gamma. If you need different defaults call png_set_gamma() before -png_set_alpha_mode() - if you call it after it will override the settings made -by png_set_alpha_mode(). - -The mode is as follows: - - PNG_ALPHA_PNG: The data is encoded according to the PNG -specification. Red, green and blue, or gray, components are -gamma encoded color values and are not premultiplied by the -alpha value. The alpha value is a linear measure of the -contribution of the pixel to the corresponding final output pixel. - -You should normally use this format if you intend to perform -color correction on the color values; most, maybe all, color -correction software has no handling for the alpha channel and, -anyway, the math to handle pre-multiplied component values is -unnecessarily complex. - -Before you do any arithmetic on the component values you need -to remove the gamma encoding and multiply out the alpha -channel. See the PNG specification for more detail. It is -important to note that when an image with an alpha channel is -scaled, linear encoded, pre-multiplied component values must -be used! - -The remaining modes assume you don't need to do any further color correction or -that if you do, your color correction software knows all about alpha (it -probably doesn't!). They 'associate' the alpha with the color information by -storing color channel values that have been scaled by the alpha. The -advantage is that the color channels can be resampled (the image can be -scaled) in this form. The disadvantage is that normal practice is to store -linear, not (gamma) encoded, values and this requires 16-bit channels for -still images rather than the 8-bit channels that are just about sufficient if -gamma encoding is used. In addition all non-transparent pixel values, -including completely opaque ones, must be gamma encoded to produce the final -image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes -described below (the latter being the two common names for associated alpha -color channels). Note that PNG files always contain non-associated color -channels; png_set_alpha_mode() with one of the modes causes the decoder to -convert the pixels to an associated form before returning them to your -application. - -Since it is not necessary to perform arithmetic on opaque color values so -long as they are not to be resampled and are in the final color space it is -possible to optimize the handling of alpha by storing the opaque pixels in -the PNG format (adjusted for the output color space) while storing partially -opaque pixels in the standard, linear, format. The accuracy required for -standard alpha composition is relatively low, because the pixels are -isolated, therefore typically the accuracy loss in storing 8-bit linear -values is acceptable. (This is not true if the alpha channel is used to -simulate transparency over large areas - use 16 bits or the PNG mode in -this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is -treated as opaque only if the alpha value is equal to the maximum value. - - PNG_ALPHA_STANDARD: The data libpng produces is encoded in the -standard way assumed by most correctly written graphics software. -The gamma encoding will be removed by libpng and the -linear component values will be pre-multiplied by the -alpha channel. - -With this format the final image must be re-encoded to -match the display gamma before the image is displayed. -If your system doesn't do that, yet still seems to -perform arithmetic on the pixels without decoding them, -it is broken - check out the modes below. - -With PNG_ALPHA_STANDARD libpng always produces linear -component values, whatever screen_gamma you supply. The -screen_gamma value is, however, used as a default for -the file gamma if the PNG file has no gamma information. - -If you call png_set_gamma() after png_set_alpha_mode() you -will override the linear encoding. Instead the -pre-multiplied pixel values will be gamma encoded but -the alpha channel will still be linear. This may -actually match the requirements of some broken software, -but it is unlikely. - -While linear 8-bit data is often used it has -insufficient precision for any image with a reasonable -dynamic range. To avoid problems, and if your software -supports it, use png_set_expand_16() to force all -components to 16 bits. - - PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD -except that completely opaque pixels are gamma encoded according to -the screen_gamma value. Pixels with alpha less than 1.0 -will still have linear components. - -Use this format if you have control over your -compositing software and so don't do other arithmetic -(such as scaling) on the data you get from libpng. Your -compositing software can simply copy opaque pixels to -the output but still has linear values for the -non-opaque pixels. - -In normal compositing, where the alpha channel encodes -partial pixel coverage (as opposed to broad area -translucency), the inaccuracies of the 8-bit -representation of non-opaque pixels are irrelevant. - -You can also try this format if your software is broken; -it might look better. - - PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component -values, including the alpha channel are gamma encoded. This is -broken because, in practice, no implementation that uses this choice -correctly undoes the encoding before handling alpha composition. Use this -choice only if other serious errors in the software or hardware you use -mandate it. In most cases of broken software or hardware the bug in the -final display manifests as a subtle halo around composited parts of the -image. You may not even perceive this as a halo; the composited part of -the image may simply appear separate from the background, as though it had -been cut out of paper and pasted on afterward. - -If you don't have to deal with bugs in software or hardware, or if you can fix -them, there are three recommended ways of using png_set_alpha_mode(): - - png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG, - screen_gamma); - -You can do color correction on the result (libpng does not currently -support color correction internally). When you handle the alpha channel -you need to undo the gamma encoding and multiply out the alpha. - - png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, - screen_gamma); - png_set_expand_16(png_ptr); - -If you are using the high level interface, don't call png_set_expand_16(); -instead pass PNG_TRANSFORM_EXPAND_16 to the interface. - -With this mode you can't do color correction, but you can do arithmetic, -including composition and scaling, on the data without further processing. - - png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED, - screen_gamma); - -You can avoid the expansion to 16-bit components with this mode, but you -lose the ability to scale the image or perform other linear arithmetic. -All you can do is compose the result onto a matching output. Since this -mode is libpng-specific you also need to write your own composition -software. - -The following are examples of calls to png_set_alpha_mode to achieve the -required overall gamma correction and, where necessary, alpha -premultiplication. - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - -This is the default libpng handling of the alpha channel - it is not -pre-multiplied into the color components. In addition the call states -that the output is for a sRGB system and causes all PNG files without gAMA -chunks to be assumed to be encoded using sRGB. - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - -In this case the output is assumed to be something like an sRGB conformant -display preceeded by a power-law lookup table of power 1.45. This is how -early Mac systems behaved. - - png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); - -This is the classic Jim Blinn approach and will work in academic -environments where everything is done by the book. It has the shortcoming -of assuming that input PNG data with no gamma information is linear - this -is unlikely to be correct unless the PNG files where generated locally. -Most of the time the output precision will be so low as to show -significant banding in dark areas of the image. - - png_set_expand_16(pp); - png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); - -This is a somewhat more realistic Jim Blinn inspired approach. PNG files -are assumed to have the sRGB encoding if not marked with a gamma value and -the output is always 16 bits per component. This permits accurate scaling -and processing of the data. If you know that your input PNG files were -generated locally you might need to replace PNG_DEFAULT_sRGB with the -correct value for your system. - - png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); - -If you just need to composite the PNG image onto an existing background -and if you control the code that does this you can use the optimization -setting. In this case you just copy completely opaque pixels to the -output. For pixels that are not completely transparent (you just skip -those) you do the composition math using png_composite or png_composite_16 -below then encode the resultant 8-bit or 16-bit values to match the output -encoding. - - Other cases - -If neither the PNG nor the standard linear encoding work for you because -of the software or hardware you use then you have a big problem. The PNG -case will probably result in halos around the image. The linear encoding -will probably result in a washed out, too bright, image (it's actually too -contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably -substantially reduce the halos. Alternatively try: - - png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); - -This option will also reduce the halos, but there will be slight dark -halos round the opaque parts of the image where the background is light. -In the OPTIMIZED mode the halos will be light halos where the background -is dark. Take your pick - the halos are unavoidable unless you can get -your hardware/software fixed! (The OPTIMIZED approach is slightly -faster.) - -When the default gamma of PNG files doesn't match the output gamma. -If you have PNG files with no gamma information png_set_alpha_mode allows -you to provide a default gamma, but it also sets the ouput gamma to the -matching value. If you know your PNG files have a gamma that doesn't -match the output you can take advantage of the fact that -png_set_alpha_mode always sets the output gamma but only sets the PNG -default if it is not already set: - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - -The first call sets both the default and the output gamma values, the -second call overrides the output gamma without changing the default. This -is easier than achieving the same effect with png_set_gamma. You must use -PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will -fire if more than one call to png_set_alpha_mode and png_set_background is -made in the same read operation, however multiple calls with PNG_ALPHA_PNG -are ignored. - -If you don't need, or can't handle, the alpha channel you can call -png_set_background() to remove it by compositing against a fixed color. Don't -call png_set_strip_alpha() to do this - it will leave spurious pixel values in -transparent parts of this image. - - png_set_background(png_ptr, &background_color, - PNG_BACKGROUND_GAMMA_SCREEN, 0, 1); - -The background_color is an RGB or grayscale value according to the data format -libpng will produce for you. Because you don't yet know the format of the PNG -file, if you call png_set_background at this point you must arrange for the -format produced by libpng to always have 8-bit or 16-bit components and then -store the color as an 8-bit or 16-bit color as appropriate. The color contains -separate gray and RGB component values, so you can let libpng produce gray or -RGB output according to the input format, but low bit depth grayscale images -must always be converted to at least 8-bit format. (Even though low bit depth -grayscale images can't have an alpha channel they can have a transparent -color!) - -You set the transforms you need later, either as flags to the high level -interface or libpng API calls for the low level interface. For reference the -settings and API calls required are: - -8-bit values: - PNG_TRANSFORM_SCALE_16 | PNG_EXPAND - png_set_expand(png_ptr); png_set_scale_16(png_ptr); - - If you must get exactly the same inaccurate results - produced by default in versions prior to libpng-1.5.4, - use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr) - instead. - -16-bit values: - PNG_TRANSFORM_EXPAND_16 - png_set_expand_16(png_ptr); - -In either case palette image data will be expanded to RGB. If you just want -color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr) -to the list. - -Calling png_set_background before the PNG file header is read will not work -prior to libpng-1.5.4. Because the failure may result in unexpected warnings or -errors it is therefore much safer to call png_set_background after the head has -been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be -used with the high level interface. - -The high-level read interface - -At this point there are two ways to proceed; through the high-level -read interface, or through a sequence of low-level read operations. -You can use the high-level interface if (a) you are willing to read -the entire image into memory, and (b) the input transformations -you want to do are limited to the following set: - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to - 8-bit accurately - PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to - 8-bit less accurately - PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel - PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit - samples to bytes - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_EXPAND Perform set_expand() - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples - to RGB (or GA to RGBA) - PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits - -(This excludes setting a background color, doing gamma transformation, -quantizing, and setting filler.) If this is the case, simply do this: - - png_read_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of some -set of transformation flags. This call is equivalent to png_read_info(), -followed the set of transformations indicated by the transform mask, -then png_read_image(), and finally png_read_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future input transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_read_png(). - -After you have called png_read_png(), you can retrieve the image data -with - - row_pointers = png_get_rows(png_ptr, info_ptr); - -where row_pointers is an array of pointers to the pixel data for each row: - - png_bytep row_pointers[height]; - -If you know your image size and pixel size ahead of time, you can allocate -row_pointers prior to calling png_read_png() with - - if (height > PNG_UINT_32_MAX/(sizeof (png_byte))) - png_error (png_ptr, - "Image is too tall to process in memory"); - - if (width > PNG_UINT_32_MAX/pixel_size) - png_error (png_ptr, - "Image is too wide to process in memory"); - - row_pointers = png_malloc(png_ptr, - height*(sizeof (png_bytep))); - - for (int i=0; i) and -png_get_(png_ptr, info_ptr, ...) functions return non-zero if the -data has been read, or zero if it is missing. The parameters to the -png_get_ are set directly if they are simple data types, or a -pointer into the info_ptr is returned for any complex types. - -The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks -is simply returned to give the application information about how the -image was encoded. Libpng itself only does transformations using the file -gamma when combining semitransparent pixels with the background color, and, -since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels -within the simplified API. Libpng also uses the file gamma when converting -RGB to gray, beginning with libpng-1.0.5, if the application calls -png_set_rgb_to_gray()). - - png_get_PLTE(png_ptr, info_ptr, &palette, - &num_palette); - - palette - the palette for the file - (array of png_color) - - num_palette - number of entries in the palette - - png_get_gAMA(png_ptr, info_ptr, &file_gamma); - png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma); - - file_gamma - the gamma at which the file is - written (PNG_INFO_gAMA) - - int_file_gamma - 100,000 times the gamma at which the - file is written - - png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x, - &red_y, &green_x, &green_y, &blue_x, &blue_y) - png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z, - &green_X, &green_Y, &green_Z, &blue_X, &blue_Y, - &blue_Z) - png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x, - &int_white_y, &int_red_x, &int_red_y, - &int_green_x, &int_green_y, &int_blue_x, - &int_blue_y) - png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y, - &int_red_Z, &int_green_X, &int_green_Y, - &int_green_Z, &int_blue_X, &int_blue_Y, - &int_blue_Z) - - {white,red,green,blue}_{x,y} - A color space encoding specified using the - chromaticities of the end points and the - white point. (PNG_INFO_cHRM) - - {red,green,blue}_{X,Y,Z} - A color space encoding specified using the - encoding end points - the CIE tristimulus - specification of the intended color of the red, - green and blue channels in the PNG RGB data. - The white point is simply the sum of the three - end points. (PNG_INFO_cHRM) - - png_get_sRGB(png_ptr, info_ptr, &srgb_intent); - - srgb_intent - the rendering intent (PNG_INFO_sRGB) - The presence of the sRGB chunk - means that the pixel data is in the - sRGB color space. This chunk also - implies specific values of gAMA and - cHRM. - - png_get_iCCP(png_ptr, info_ptr, &name, - &compression_type, &profile, &proflen); - - name - The profile name. - - compression_type - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - - profile - International Color Consortium color - profile data. May contain NULs. - - proflen - length of profile data in bytes. - - png_get_sBIT(png_ptr, info_ptr, &sig_bit); - - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, - red, green, and blue channels, - whichever are appropriate for the - given color type (png_color_16) - - png_get_tRNS(png_ptr, info_ptr, &trans_alpha, - &num_trans, &trans_color); - - trans_alpha - array of alpha (transparency) - entries for palette (PNG_INFO_tRNS) - - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - trans_color - graylevel or color sample values of - the single transparent color for - non-paletted images (PNG_INFO_tRNS) - - png_get_hIST(png_ptr, info_ptr, &hist); - (PNG_INFO_hIST) - - hist - histogram of palette (array of - png_uint_16) - - png_get_tIME(png_ptr, info_ptr, &mod_time); - - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_get_bKGD(png_ptr, info_ptr, &background); - - background - background color (of type - png_color_16p) (PNG_VALID_bKGD) - valid 16-bit red, green and blue - values, regardless of color_type - - num_comments = png_get_text(png_ptr, info_ptr, - &text_ptr, &num_text); - - num_comments - number of comments - - text_ptr - array of png_text holding image - comments - - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - - text_ptr[i].text - text comments for current - keyword. Can be empty. - - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - - text_ptr[i].lang - language of comment (empty - string for unknown). - - text_ptr[i].lang_key - keyword in UTF-8 - (empty string for unknown). - - Note that the itxt_length, lang, and lang_key - members of the text_ptr structure only exist when the - library is built with iTXt chunk support. Prior to - libpng-1.4.0 the library was built by default without - iTXt support. Also note that when iTXt is supported, - they contain NULL pointers when the "compression" - field contains PNG_TEXT_COMPRESSION_NONE or - PNG_TEXT_COMPRESSION_zTXt. - - num_text - number of comments (same as - num_comments; you can put NULL here - to avoid the duplication) - - Note while png_set_text() will accept text, language, - and translated keywords that can be NULL pointers, the - structure returned by png_get_text will always contain - regular zero-terminated C strings. They might be - empty strings but they will never be NULL pointers. - - num_spalettes = png_get_sPLT(png_ptr, info_ptr, - &palette_ptr); - - num_spalettes - number of sPLT chunks read. - - palette_ptr - array of palette structures holding - contents of one or more sPLT chunks - read. - - png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y, - &unit_type); - - offset_x - positive offset from the left edge - of the screen (can be negative) - - offset_y - positive offset from the top edge - of the screen (can be negative) - - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, - &unit_type); - - res_x - pixels/unit physical resolution in - x direction - - res_y - pixels/unit physical resolution in - x direction - - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_get_sCAL(png_ptr, info_ptr, &unit, &width, - &height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - - height - height of a pixel in physical scale units - (width and height are doubles) - - png_get_sCAL_s(png_ptr, info_ptr, &unit, &width, - &height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - (expressed as a string) - - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - num_unknown_chunks = png_get_unknown_chunks(png_ptr, - info_ptr, &unknowns) - - unknowns - array of png_unknown_chunk - structures holding unknown chunks - - unknowns[i].name - name of unknown chunk - - unknowns[i].data - data of unknown chunk - - unknowns[i].size - size of unknown chunk's data - - unknowns[i].location - position of chunk in file - - The value of "i" corresponds to the order in which the - chunks were read from the PNG file or inserted with the - png_set_unknown_chunks() function. - - The value of "location" is a bitwise "or" of - - PNG_HAVE_IHDR (0x01) - PNG_HAVE_PLTE (0x02) - PNG_AFTER_IDAT (0x08) - -The data from the pHYs chunk can be retrieved in several convenient -forms: - - res_x = png_get_x_pixels_per_meter(png_ptr, - info_ptr) - - res_y = png_get_y_pixels_per_meter(png_ptr, - info_ptr) - - res_x_and_y = png_get_pixels_per_meter(png_ptr, - info_ptr) - - res_x = png_get_x_pixels_per_inch(png_ptr, - info_ptr) - - res_y = png_get_y_pixels_per_inch(png_ptr, - info_ptr) - - res_x_and_y = png_get_pixels_per_inch(png_ptr, - info_ptr) - - aspect_ratio = png_get_pixel_aspect_ratio(png_ptr, - info_ptr) - - Each of these returns 0 [signifying "unknown"] if - the data is not present or if res_x is 0; - res_x_and_y is 0 if res_x != res_y - - Note that because of the way the resolutions are - stored internally, the inch conversions won't - come out to exactly even number. For example, - 72 dpi is stored as 0.28346 pixels/meter, and - when this is retrieved it is 71.9988 dpi, so - be sure to round the returned value appropriately - if you want to display a reasonable-looking result. - -The data from the oFFs chunk can be retrieved in several convenient -forms: - - x_offset = png_get_x_offset_microns(png_ptr, info_ptr); - - y_offset = png_get_y_offset_microns(png_ptr, info_ptr); - - x_offset = png_get_x_offset_inches(png_ptr, info_ptr); - - y_offset = png_get_y_offset_inches(png_ptr, info_ptr); - - Each of these returns 0 [signifying "unknown" if both - x and y are 0] if the data is not present or if the - chunk is present but the unit is the pixel. The - remark about inexact inch conversions applies here - as well, because a value in inches can't always be - converted to microns and back without some loss - of precision. - -For more information, see the -PNG specification for chunk contents. Be careful with trusting -rowbytes, as some of the transformations could increase the space -needed to hold a row (expand, filler, gray_to_rgb, etc.). -See png_read_update_info(), below. - -A quick word about text_ptr and num_text. PNG stores comments in -keyword/text pairs, one pair per chunk, with no limit on the number -of text chunks, and a 2^31 byte limit on their size. While there are -suggested keywords, there is no requirement to restrict the use to these -strings. It is strongly suggested that keywords and text be sensible -to humans (that's the point), so don't use abbreviations. Non-printing -symbols are not allowed. See the PNG specification for more details. -There is also no requirement to have text after the keyword. - -Keywords should be limited to 79 Latin-1 characters without leading or -trailing spaces, but non-consecutive spaces are allowed within the -keyword. It is possible to have the same keyword any number of times. -The text_ptr is an array of png_text structures, each holding a -pointer to a language string, a pointer to a keyword and a pointer to -a text string. The text string, language code, and translated -keyword may be empty or NULL pointers. The keyword/text -pairs are put into the array in the order that they are received. -However, some or all of the text chunks may be after the image, so, to -make sure you have read all the text chunks, don't mess with these -until after you read the stuff after the image. This will be -mentioned again below in the discussion that goes with png_read_end(). - -Input transformations - -After you've read the header information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. - -Transformations you request are ignored if they don't have any meaning for a -particular input data format. However some transformations can have an effect -as a result of a previous transformation. If you specify a contradictory set of -transformations, for example both adding and removing the alpha channel, you -cannot predict the final result. - -The color used for the transparency values should be supplied in the same -format/depth as the current image data. It is stored in the same format/depth -as the image data in a tRNS chunk, so this is what libpng expects for this data. - -The color used for the background value depends on the need_expand argument as -described below. - -Data will be decoded into the supplied row buffers packed into bytes -unless the library has been told to transform it into another format. -For example, 4 bit/pixel paletted or grayscale data will be returned -2 pixels/byte with the leftmost pixel in the high-order bits of the -byte, unless png_set_packing() is called. 8-bit RGB data will be stored -in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha() -is called to insert filler bytes, either before or after each RGB triplet. -16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant -byte of the color value first, unless png_set_scale_16() is called to -transform it to regular RGB RGB triplets, or png_set_filler() or -png_set_add alpha() is called to insert filler bytes, either before or -after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can -be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(), -or png_set_scale_16(). - -The following code transforms grayscale images of less than 8 to 8 bits, -changes paletted images to RGB, and adds a full alpha channel if there is -transparency information in a tRNS chunk. This is most useful on -grayscale images with bit depths of 2 or 4 or if there is a multiple-image -viewing application that wishes to treat all images in the same way. - - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(png_ptr); - - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr); - - if (color_type == PNG_COLOR_TYPE_GRAY && - bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr); - -The first two functions are actually aliases for png_set_expand(), added -in libpng version 1.0.4, with the function names expanded to improve code -readability. In some future version they may actually do different -things. - -As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was -added. It expands the sample depth without changing tRNS to alpha. - -As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as -png_set_expand(); however, the resultant channels have 16 bits rather than 8. -Use this when the output color or gray channels are made linear to avoid fairly -severe accuracy loss. - - if (bit_depth < 16) - png_set_expand_16(png_ptr); - -PNG can have files with 16 bits per channel. If you only can handle -8 bits per channel, this will strip the pixels down to 8-bit. - - if (bit_depth == 16) -#if PNG_LIBPNG_VER >= 10504 - png_set_scale_16(png_ptr); -#else - png_set_strip_16(png_ptr); -#endif - -(The more accurate "png_set_scale_16()" API became available in libpng version -1.5.4). - -If you need to process the alpha channel on the image separately from the image -data (for example if you convert it to a bitmap mask) it is possible to have -libpng strip the channel leaving just RGB or gray data: - - if (color_type & PNG_COLOR_MASK_ALPHA) - png_set_strip_alpha(png_ptr); - -If you strip the alpha channel you need to find some other way of dealing with -the information. If, instead, you want to convert the image to an opaque -version with no alpha channel use png_set_background; see below. - -As of libpng version 1.5.2, almost all useful expansions are supported, the -major ommissions are conversion of grayscale to indexed images (which can be -done trivially in the application) and conversion of indexed to grayscale (which -can be done by a trivial manipulation of the palette.) - -In the following table, the 01 means grayscale with depth<8, 31 means -indexed with depth<8, other numerals represent the color type, "T" means -the tRNS chunk is present, A means an alpha channel is present, and O -means tRNS or alpha is present but all pixels in the image are opaque. - - FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O - TO - 01 - [G] - - - - - - - - - - - - - - 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q - 0 1 G + . . G G G G G G B B GB GB - 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt - 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt - 2 C P C C C + . . C - - CB CB B B - 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt - 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt - 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q - 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt - 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt - 4A lA G A T T GA GT GT GA GT GT + BA G GBA - 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G - 6A CA PA CA C C A T tT PA P P C CBA + BA - 6O CA PBA CA C C A tT T PA P P CBA C BA + - -Within the matrix, - "+" identifies entries where 'from' and 'to' are the same. - "-" means the transformation is not supported. - "." means nothing is necessary (a tRNS chunk can just be ignored). - "t" means the transformation is obtained by png_set_tRNS. - "A" means the transformation is obtained by png_set_add_alpha(). - "X" means the transformation is obtained by png_set_expand(). - "1" means the transformation is obtained by - png_set_expand_gray_1_2_4_to_8() (and by png_set_expand() - if there is no transparency in the original or the final - format). - "C" means the transformation is obtained by png_set_gray_to_rgb(). - "G" means the transformation is obtained by png_set_rgb_to_gray(). - "P" means the transformation is obtained by - png_set_expand_palette_to_rgb(). - "p" means the transformation is obtained by png_set_packing(). - "Q" means the transformation is obtained by png_set_quantize(). - "T" means the transformation is obtained by - png_set_tRNS_to_alpha(). - "B" means the transformation is obtained by - png_set_background(), or png_strip_alpha(). - -When an entry has multiple transforms listed all are required to cause the -right overall transformation. When two transforms are separated by a comma -either will do the job. When transforms are enclosed in [] the transform should -do the job but this is currently unimplemented - a different format will result -if the suggested transformations are used. - -In PNG files, the alpha channel in an image -is the level of opacity. If you need the alpha channel in an image to -be the level of transparency instead of opacity, you can invert the -alpha channel (or the tRNS chunk data) after it's read, so that 0 is -fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit -images) is fully transparent, with - - png_set_invert_alpha(png_ptr); - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit -files. This code expands to 1 pixel per byte without changing the -values of the pixels: - - if (bit_depth < 8) - png_set_packing(png_ptr); - -PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels -stored in a PNG image have been "scaled" or "shifted" up to the next -higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] -to 8 bits/sample in the range [0, 255]). However, it is also possible -to convert the PNG pixel data back to the original bit depth of the -image. This call reduces the pixels back down to the original bit depth: - - png_color_8p sig_bit; - - if (png_get_sBIT(png_ptr, info_ptr, &sig_bit)) - png_set_shift(png_ptr, sig_bit); - -PNG files store 3-color pixels in red, green, blue order. This code -changes the storage of the pixels to blue, green, red: - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_bgr(png_ptr); - -PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them -into 4 or 8 bytes for windowing systems that need them in this format: - - if (color_type == PNG_COLOR_TYPE_RGB) - png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE); - -where "filler" is the 8 or 16-bit number to fill with, and the location is -either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether -you want the filler before the RGB or after. This transformation -does not affect images that already have full alpha channels. To add an -opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which -will generate RGBA pixels. - -Note that png_set_filler() does not change the color type. If you want -to do that, you can add a true alpha channel with - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY) - png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER); - -where "filler" contains the alpha value to assign to each pixel. -This function was added in libpng-1.2.7. - -If you are reading an image with an alpha channel, and you need the -data as ARGB instead of the normal PNG format RGBA: - - if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_swap_alpha(png_ptr); - -For some uses, you may want a grayscale image to be represented as -RGB. This code will do that conversion: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_gray_to_rgb(png_ptr); - -Conversely, you can convert an RGB or RGBA image to grayscale or grayscale -with alpha. - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_rgb_to_gray(png_ptr, error_action, - double red_weight, double green_weight); - - error_action = 1: silently do the conversion - - error_action = 2: issue a warning if the original - image has any pixel where - red != green or red != blue - - error_action = 3: issue an error and abort the - conversion if the original - image has any pixel where - red != green or red != blue - - red_weight: weight of red component - - green_weight: weight of green component - If either weight is negative, default - weights are used. - -In the corresponding fixed point API the red_weight and green_weight values are -simply scaled by 100,000: - - png_set_rgb_to_gray(png_ptr, error_action, - png_fixed_point red_weight, - png_fixed_point green_weight); - -If you have set error_action = 1 or 2, you can -later check whether the image really was gray, after processing -the image rows, with the png_get_rgb_to_gray_status(png_ptr) function. -It will return a png_byte that is zero if the image was gray or -1 if there were any non-gray pixels. Background and sBIT data -will be silently converted to grayscale, using the green channel -data for sBIT, regardless of the error_action setting. - -The default values come from the PNG file cHRM chunk if present; otherwise, the -defaults correspond to the ITU-R recommendation 709, and also the sRGB color -space, as recommended in the Charles Poynton's Colour FAQ, -, in section 9: - - - - Y = 0.2126 * R + 0.7152 * G + 0.0722 * B - -Previous versions of this document, 1998 through 2002, recommended a slightly -different formula: - - Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - -Libpng uses an integer approximation: - - Y = (6968 * R + 23434 * G + 2366 * B)/32768 - -The calculation is done in a linear colorspace, if the image gamma -can be determined. - -The png_set_background() function has been described already; it tells libpng to -composite images with alpha or simple transparency against the supplied -background color. For compatibility with versions of libpng earlier than -libpng-1.5.4 it is recommended that you call the function after reading the file -header, even if you don't want to use the color in a bKGD chunk, if one exists. - -If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid), -you may use this color, or supply another color more suitable for -the current display (e.g., the background color from a web page). You -need to tell libpng how the color is represented, both the format of the -component values in the color (the number of bits) and the gamma encoding of the -color. The function takes two arguments, background_gamma_mode and need_expand -to convey this information; however, only two combinations are likely to be -useful: - - png_color_16 my_background; - png_color_16p image_background; - - if (png_get_bKGD(png_ptr, info_ptr, &image_background)) - png_set_background(png_ptr, image_background, - PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1); - else - png_set_background(png_ptr, &my_background, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1); - -The second call was described above - my_background is in the format of the -final, display, output produced by libpng. Because you now know the format of -the PNG it is possible to avoid the need to choose either 8-bit or 16-bit -output and to retain palette images (the palette colors will be modified -appropriately and the tRNS chunk removed.) However, if you are doing this, -take great care not to ask for transformations without checking first that -they apply! - -In the first call the background color has the original bit depth and color type -of the PNG file. So, for palette images the color is supplied as a palette -index and for low bit greyscale images the color is a reduced bit value in -image_background->gray. - -If you didn't call png_set_gamma() before reading the file header, for example -if you need your code to remain compatible with older versions of libpng prior -to libpng-1.5.4, this is the place to call it. - -Do not call it if you called png_set_alpha_mode(); doing so will damage the -settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is -supported then you can certainly do png_set_gamma() before reading the PNG -header.) - -This API unconditionally sets the screen and file gamma values, so it will -override the value in the PNG file unless it is called before the PNG file -reading starts. For this reason you must always call it with the PNG file -value when you call it in this position: - - if (png_get_gAMA(png_ptr, info_ptr, &file_gamma)) - png_set_gamma(png_ptr, screen_gamma, file_gamma); - - else - png_set_gamma(png_ptr, screen_gamma, 0.45455); - -If you need to reduce an RGB file to a paletted file, or if a paletted -file has more entries then will fit on your screen, png_set_quantize() -will do that. Note that this is a simple match quantization that merely -finds the closest color available. This should work fairly well with -optimized palettes, but fairly badly with linear color cubes. If you -pass a palette that is larger than maximum_colors, the file will -reduce the number of colors in the palette so it will fit into -maximum_colors. If there is a histogram, libpng will use it to make -more intelligent choices when reducing the palette. If there is no -histogram, it may not do as good a job. - - if (color_type & PNG_COLOR_MASK_COLOR) - { - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_PLTE)) - { - png_uint_16p histogram = NULL; - - png_get_hIST(png_ptr, info_ptr, - &histogram); - png_set_quantize(png_ptr, palette, num_palette, - max_screen_colors, histogram, 1); - } - - else - { - png_color std_color_cube[MAX_SCREEN_COLORS] = - { ... colors ... }; - - png_set_quantize(png_ptr, std_color_cube, - MAX_SCREEN_COLORS, MAX_SCREEN_COLORS, - NULL,0); - } - } - -PNG files describe monochrome as black being zero and white being one. -The following code will reverse this (make black be one and white be -zero): - - if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) - png_set_invert_mono(png_ptr); - -This function can also be used to invert grayscale and gray-alpha images: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_invert_mono(png_ptr); - -PNG files store 16-bit pixels in network byte order (big-endian, -ie. most significant bits first). This code changes the storage to the -other way (little-endian, i.e. least significant bits first, the -way PCs store them): - - if (bit_depth == 16) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_read_user_transform_fn(png_ptr, - read_transform_fn); - -You must supply the function - - void read_transform_fn(png_structp png_ptr, png_row_infop - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -after all of the other transformations have been processed. Take care with -interlaced images if you do the interlace yourself - the width of the row is the -width in 'row_info', not the overall image width. - -If supported, libpng provides two information routines that you can use to find -where you are in processing the image: - - png_get_current_pass_number(png_structp png_ptr); - png_get_current_row_number(png_structp png_ptr); - -Don't try using these outside a transform callback - firstly they are only -supported if user transforms are supported, secondly they may well return -unexpected results unless the row is actually being processed at the moment they -are called. - -With interlaced -images the value returned is the row in the input sub-image image. Use -PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to -find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). - -The discussion of interlace handling above contains more information on how to -use these values. - -You can also set up a pointer to a user structure for use by your -callback function, and you can inform libpng that your transform -function will change the number of channels or bit depth with the -function - - png_set_user_transform_info(png_ptr, user_ptr, - user_depth, user_channels); - -The user's application, not libpng, is responsible for allocating and -freeing any memory required for the user structure. - -You can retrieve the pointer via the function -png_get_user_transform_ptr(). For example: - - voidp read_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -The last thing to handle is interlacing; this is covered in detail below, -but you must call the function here if you want libpng to handle expansion -of the interlaced image. - - number_of_passes = png_set_interlace_handling(png_ptr); - -After setting the transformations, libpng can update your png_info -structure to reflect any transformations you've requested with this -call. - - png_read_update_info(png_ptr, info_ptr); - -This is most useful to update the info structure's rowbytes -field so you can use it to allocate your image memory. This function -will also update your palette with the correct screen_gamma and -background if these have been given with the calls above. You may -only call png_read_update_info() once with a particular info_ptr. - -After you call png_read_update_info(), you can allocate any -memory you need to hold the image. The row data is simply -raw byte data for all forms of images. As the actual allocation -varies among applications, no example will be given. If you -are allocating one large chunk, you will need to build an -array of pointers to each row, as it will be needed for some -of the functions below. - -Remember: Before you call png_read_update_info(), the png_get_*() -functions return the values corresponding to the original PNG image. -After you call png_read_update_info the values refer to the image -that libpng will output. Consequently you must call all the png_set_ -functions before you call png_read_update_info(). This is particularly -important for png_set_interlace_handling() - if you are going to call -png_read_update_info() you must call png_set_interlace_handling() before -it unless you want to receive interlaced output. - -Reading image data - -After you've allocated memory, you can read the image data. -The simplest way to do this is in one function call. If you are -allocating enough memory to hold the whole image, you can just -call png_read_image() and libpng will read in all the image data -and put it in the memory area supplied. You will need to pass in -an array of pointers to each row. - -This function automatically handles interlacing, so you don't -need to call png_set_interlace_handling() (unless you call -png_read_update_info()) or call this function multiple times, or any -of that other stuff necessary with png_read_rows(). - - png_read_image(png_ptr, row_pointers); - -where row_pointers is: - - png_bytep row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to read in the whole image at once, you can -use png_read_rows() instead. If there is no interlacing (check -interlace_type == PNG_INTERLACE_NONE), this is simple: - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -where row_pointers is the same as in the png_read_image() call. - -If you are doing this just one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - png_read_row(png_ptr, row_pointer, NULL); - -If the file is interlaced (interlace_type != 0 in the IHDR chunk), things -get somewhat harder. The only current (PNG Specification version 1.2) -interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7); -a somewhat complicated 2D interlace scheme, known as Adam7, that -breaks down an image into seven smaller images of varying size, based -on an 8x8 grid. This number is defined (from libpng 1.5) as -PNG_INTERLACE_ADAM7_PASSES in png.h - -libpng can fill out those images or it can give them to you "as is". -It is almost always better to have libpng handle the interlacing for you. -If you want the images filled out, there are two ways to do that. The one -mentioned in the PNG specification is to expand each pixel to cover -those pixels that have not been read yet (the "rectangle" method). -This results in a blocky image for the first pass, which gradually -smooths out as more pixels are read. The other method is the "sparkle" -method, where pixels are drawn only in their final locations, with the -rest of the image remaining whatever colors they were initialized to -before the start of the read. The first method usually looks better, -but tends to be slower, as there are more pixels to put in the rows. - -If, as is likely, you want libpng to expand the images, call this before -calling png_start_read_image() or png_read_update_info(): - - if (interlace_type == PNG_INTERLACE_ADAM7) - number_of_passes - = png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this is seven, -but may change if another interlace type is added. This function can be -called even if the file is not interlaced, where it will return one pass. -You then need to read the whole image 'number_of_passes' times. Each time -will distribute the pixels from the current pass to the correct place in -the output image, so you need to supply the same rows to png_read_rows in -each pass. - -If you are not going to display the image after each pass, but are -going to wait until the entire image is read in, use the sparkle -effect. This effect is faster and the end result of either method -is exactly the same. If you are planning on displaying the image -after each pass, the "rectangle" effect is generally considered the -better looking one. - -If you only want the "sparkle" effect, just call png_read_rows() as -normal, with the third parameter NULL. Make sure you make pass over -the image number_of_passes times, and you don't change the data in the -rows between calls. You can change the locations of the data, just -not the data. Each pass only writes the pixels appropriate for that -pass, and assumes the data from previous passes is still valid. - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -If you only want the first effect (the rectangles), do the same as -before except pass the row buffer in the third parameter, and leave -the second parameter NULL. - - png_read_rows(png_ptr, NULL, row_pointers, - number_of_rows); - -If you don't want libpng to handle the interlacing details, just call -png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images. -Each of the images is a valid image by itself; however, you will almost -certainly need to distribute the pixels from each sub-image to the -correct place. This is where everything gets very tricky. - -If you want to retrieve the separate images you must pass the correct -number of rows to each successive call of png_read_rows(). The calculation -gets pretty complicated for small images, where some sub-images may -not even exist because either their width or height ends up zero. -libpng provides two macros to help you in 1.5 and later versions: - - png_uint_32 width = PNG_PASS_COLS(image_width, pass_number); - png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number); - -Respectively these tell you the width and height of the sub-image -corresponding to the numbered pass. 'pass' is in in the range 0 to 6 - -this can be confusing because the specification refers to the same passes -as 1 to 7! Be careful, you must check both the width and height before -calling png_read_rows() and not call it for that pass if either is zero. - -You can, of course, read each sub-image row by row. If you want to -produce optimal code to make a pixel-by-pixel transformation of an -interlaced image this is the best approach; read each row of each pass, -transform it, and write it out to a new interlaced image. - -If you want to de-interlace the image yourself libpng provides further -macros to help that tell you where to place the pixels in the output image. -Because the interlacing scheme is rectangular - sub-image pixels are always -arranged on a rectangular grid - all you need to know for each pass is the -starting column and row in the output image of the first pixel plus the -spacing between each pixel. As of libpng 1.5 there are four macros to -retrieve this information: - - png_uint_32 x = PNG_PASS_START_COL(pass); - png_uint_32 y = PNG_PASS_START_ROW(pass); - png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass); - png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass); - -These allow you to write the obvious loop: - - png_uint_32 input_y = 0; - png_uint_32 output_y = PNG_PASS_START_ROW(pass); - - while (output_y < output_image_height) - { - png_uint_32 input_x = 0; - png_uint_32 output_x = PNG_PASS_START_COL(pass); - - while (output_x < output_image_width) - { - image[output_y][output_x] = - subimage[pass][input_y][input_x++]; - - output_x += xStep; - } - - ++input_y; - output_y += yStep; - } - -Notice that the steps between successive output rows and columns are -returned as shifts. This is possible because the pixels in the subimages -are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original -image. In practice you may need to directly calculate the output coordinate -given an input coordinate. libpng provides two further macros for this -purpose: - - png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass); - png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass); - -Finally a pair of macros are provided to tell you if a particular image -row or column appears in a given pass: - - int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass); - int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass); - -Bear in mind that you will probably also need to check the width and height -of the pass in addition to the above to be sure the pass even exists! - -With any luck you are convinced by now that you don't want to do your own -interlace handling. In reality normally the only good reason for doing this -is if you are processing PNG files on a pixel-by-pixel basis and don't want -to load the whole file into memory when it is interlaced. - -libpng includes a test program, pngvalid, that illustrates reading and -writing of interlaced images. If you can't get interlacing to work in your -code and don't want to leave it to libpng (the recommended approach), see -how pngvalid.c does it. - -Finishing a sequential read - -After you are finished reading the image through the -low-level interface, you can finish reading the file. - -If you want to use a different crc action for handling CRC errors in -chunks after the image data, you can call png_set_crc_action() -again at this point. - -If you are interested in comments or time, which may be stored either -before or after the image data, you should pass the separate png_info -struct if you want to keep the comments from before and after the image -separate. - - png_infop end_info = png_create_info_struct(png_ptr); - - if (!end_info) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - png_read_end(png_ptr, end_info); - -If you are not interested, you should still call png_read_end() -but you can pass NULL, avoiding the need to create an end_info structure. -If you do this, libpng will not process any chunks after IDAT other than -skipping over them and perhaps (depending on whether you have called -png_set_crc_action) checking their CRCs while looking for the IEND chunk. - - png_read_end(png_ptr, (png_infop)NULL); - -If you don't call png_read_end(), then your file pointer will be -left pointing to the first chunk after the last IDAT, which is probably -not what you want if you expect to read something beyond the end of -the PNG datastream. - -When you are done, you can free all memory allocated by libpng like this: - - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - -or, if you didn't create an end_info structure, - - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - - seq - sequence number of item to be freed - (-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those cases do nothing. -The "seq" parameter is ignored if only one item of the selected data -type, such as PLTE, is allowed. If "seq" is not -1, and multiple items -are allowed for the data type identified in the mask, such as text or -sPLT, only the n'th item in the structure is freed, where n is "seq". - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_calloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - - mask - which data elements are affected - same choices as in png_free_data() - -This function only affects data that has already been allocated. -You can call this function after reading the PNG data but before calling -any png_set_*() functions, to control whether the user or the png_set_*() -function is responsible for freeing any existing data that might be present, -and again after the png_set_*() functions to control whether the user -or png_destroy_*() is supposed to free the data. When the user assumes -responsibility for libpng-allocated data, the application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_calloc() to allocate it. - -If you allocated your row_pointers in a single block, as suggested above in -the description of the high level read interface, you must not transfer -responsibility for freeing it to the png_set_rows or png_read_destroy function, -because they would also try to free the individual row_pointers[i]. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. - -The png_free_data() function will turn off the "valid" flag for anything -it frees. If you need to turn the flag off for a chunk that was freed by -your application instead of by libpng, you can use - - png_set_invalid(png_ptr, info_ptr, mask); - - mask - identifies the chunks to be made invalid, - containing the bitwise OR of one or - more of - PNG_INFO_gAMA, PNG_INFO_sBIT, - PNG_INFO_cHRM, PNG_INFO_PLTE, - PNG_INFO_tRNS, PNG_INFO_bKGD, - PNG_INFO_hIST, PNG_INFO_pHYs, - PNG_INFO_oFFs, PNG_INFO_tIME, - PNG_INFO_pCAL, PNG_INFO_sRGB, - PNG_INFO_iCCP, PNG_INFO_sPLT, - PNG_INFO_sCAL, PNG_INFO_IDAT - -For a more compact example of reading a PNG image, see the file example.c. - -Reading PNG files progressively - -The progressive reader is slightly different from the non-progressive -reader. Instead of calling png_read_info(), png_read_rows(), and -png_read_end(), you make one call to png_process_data(), which calls -callbacks when it has the info, a row, or the end of the image. You -set up these callbacks with png_set_progressive_read_fn(). You don't -have to worry about the input/output functions of libpng, as you are -giving the library the data directly in png_process_data(). I will -assume that you have read the section on reading PNG files above, -so I will only highlight the differences (although I will show -all of the code). - -png_structp png_ptr; -png_infop info_ptr; - - /* An example code fragment of how you would - initialize the progressive reader in your - application. */ - int - initialize_png_reader() - { - png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - info_ptr = png_create_info_struct(png_ptr); - - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, - (png_infopp)NULL, (png_infopp)NULL); - return (ERROR); - } - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new. You can provide functions - to be called when the header info is valid, - when each row is completed, and when the image - is finished. If you aren't using all functions, - you can specify NULL parameters. Even when all - three functions are NULL, you need to call - png_set_progressive_read_fn(). You can use - any struct as the user_ptr (cast to a void pointer - for the function call), and retrieve the pointer - from inside the callbacks using the function - - png_get_progressive_ptr(png_ptr); - - which will return a void pointer, which you have - to cast appropriately. - */ - png_set_progressive_read_fn(png_ptr, (void *)user_ptr, - info_callback, row_callback, end_callback); - - return 0; - } - - /* A code fragment that you call as you receive blocks - of data */ - int - process_data(png_bytep buffer, png_uint_32 length) - { - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new also. Simply give it a chunk - of data from the file stream (in order, of - course). On machines with segmented memory - models machines, don't give it any more than - 64K. The library seems to run fine with sizes - of 4K. Although you can give it much less if - necessary (I assume you can give it chunks of - 1 byte, I haven't tried less then 256 bytes - yet). When this function returns, you may - want to display any rows that were generated - in the row callback if you don't already do - so there. - */ - png_process_data(png_ptr, info_ptr, buffer, length); - - /* At this point you can call png_process_data_skip if - you want to handle data the library will skip yourself; - it simply returns the number of bytes to skip (and stops - libpng skipping that number of bytes on the next - png_process_data call). - return 0; - } - - /* This function is called (as set by - png_set_progressive_read_fn() above) when enough data - has been supplied so all of the header has been - read. - */ - void - info_callback(png_structp png_ptr, png_infop info) - { - /* Do any setup here, including setting any of - the transformations mentioned in the Reading - PNG files section. For now, you _must_ call - either png_start_read_image() or - png_read_update_info() after all the - transformations are set (even if you don't set - any). You may start getting rows before - png_process_data() returns, so this is your - last chance to prepare for that. - - This is where you turn on interlace handling, - assuming you don't want to do it yourself. - - If you need to you can stop the processing of - your original input data at this point by calling - png_process_data_pause. This returns the number - of unprocessed bytes from the last png_process_data - call - it is up to you to ensure that the next call - sees these bytes again. If you don't want to bother - with this you can get libpng to cache the unread - bytes by setting the 'save' parameter (see png.h) but - then libpng will have to copy the data internally. - */ - } - - /* This function is called when each row of image - data is complete */ - void - row_callback(png_structp png_ptr, png_bytep new_row, - png_uint_32 row_num, int pass) - { - /* If the image is interlaced, and you turned - on the interlace handler, this function will - be called for every row in every pass. Some - of these rows will not be changed from the - previous pass. When the row is not changed, - the new_row variable will be NULL. The rows - and passes are called in order, so you don't - really need the row_num and pass, but I'm - supplying them because it may make your life - easier. - - If you did not turn on interlace handling then - the callback is called for each row of each - sub-image when the image is interlaced. In this - case 'row_num' is the row in the sub-image, not - the row in the output image as it is in all other - cases. - - For the non-NULL rows of interlaced images when - you have switched on libpng interlace handling, - you must call png_progressive_combine_row() - passing in the row and the old row. You can - call this function for NULL rows (it will just - return) and for non-interlaced images (it just - does the memcpy for you) if it will make the - code easier. Thus, you can just do this for - all cases if you switch on interlace handling; - */ - - png_progressive_combine_row(png_ptr, old_row, - new_row); - - /* where old_row is what was displayed - previously for the row. Note that the first - pass (pass == 0, really) will completely cover - the old row, so the rows do not have to be - initialized. After the first pass (and only - for interlaced images), you will have to pass - the current row, and the function will combine - the old row and the new row. - - You can also call png_process_data_pause in this - callback - see above. - */ - } - - void - end_callback(png_structp png_ptr, png_infop info) - { - /* This function is called after the whole image - has been read, including any chunks after the - image (up to and including the IEND). You - will usually have the same info chunk as you - had in the header, although some data may have - been added to the comments and time fields. - - Most people won't do much here, perhaps setting - a flag that marks the image as finished. - */ - } - - - -IV. Writing - -Much of this is very similar to reading. However, everything of -importance is repeated here, so you won't have to constantly look -back up in the reading section to understand writing. - -Setup - -You will want to do the I/O initialization before you get into libpng, -so if it doesn't work, you don't have anything to undo. If you are not -using the standard I/O functions, you will need to replace them with -custom writing functions. See the discussion under Customizing libpng. - - FILE *fp = fopen(file_name, "wb"); - - if (!fp) - return (ERROR); - -Next, png_struct and png_info need to be allocated and initialized. -As these can be both relatively large, you may not want to store these -on the stack, unless you have stack space to spare. Of course, you -will want to check if they return NULL. If you are also reading, -you won't want to name your read structure and your write structure -both "png_ptr"; you can call them anything you like, such as -"read_ptr" and "write_ptr". Look at pngtest.c, for example. - - png_structp png_ptr = png_create_write_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - if (!info_ptr) - { - png_destroy_write_struct(&png_ptr, - (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -define PNG_USER_MEM_SUPPORTED and use -png_create_write_struct_2() instead of png_create_write_struct(): - - png_structp png_ptr = png_create_write_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -After you have these structures, you will need to set up the -error handling. When libpng encounters an error, it expects to -longjmp() back to your routine. Therefore, you will need to call -setjmp() and pass the png_jmpbuf(png_ptr). If you -write the file from different routines, you will need to update -the png_jmpbuf(png_ptr) every time you enter a new routine that will -call a png_*() function. See your documentation of setjmp/longjmp -for your compiler for more information on setjmp/longjmp. See -the discussion on libpng error handling in the Customizing Libpng -section below for more information on the libpng error handling. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_write_struct(&png_ptr, &info_ptr); - fclose(fp); - return (ERROR); - } - ... - return; - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_NO_SETJMP, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -You can #define PNG_ABORT() to a function that does something -more useful than abort(), as long as your function does not -return. - -Checking for invalid palette index on write was added at libpng -1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues -a benign error. This is enabled by default because this condition is an -error according to the PNG specification, Clause 11.3.2, but the error can -be ignored in each png_ptr with - - png_set_check_for_invalid_index(png_ptr, 0); - -If the error is ignored, or if png_benign_error() treats it as a warning, -any invalid pixels are written as-is by the encoder, resulting in an -invalid PNG datastream as output. In this case the application is -responsible for ensuring that the pixel indexes are in range when it writes -a PLTE chunk with fewer entries than the bit depth would allow. - -Now you need to set up the output code. The default for libpng is to -use the C function fwrite(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. Again, if you wish to handle writing data in -another way, see the discussion on libpng I/O handling in the Customizing -Libpng section below. - - png_init_io(png_ptr, fp); - -If you are embedding your PNG into a datastream such as MNG, and don't -want libpng to write the 8-byte signature, or if you have already -written the signature in your application, use - - png_set_sig_bytes(png_ptr, 8); - -to inform libpng that it should not write a signature. - -Write callbacks - -At this point, you can set up a callback function that will be -called after each row has been written, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void write_row_callback(png_structp png_ptr, png_uint_32 row, - int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "write_row_callback") - -To inform libpng about your function, use - - png_set_write_status_fn(png_ptr, write_row_callback); - -When this function is called the row has already been completely processed and -it has also been written out. The 'row' and 'pass' refer to the next row to be -handled. For the -non-interlaced case the row that was just handled is simply one less than the -passed in row number, and pass will always be 0. For the interlaced case the -same applies unless the row value is 0, in which case the row just handled was -the last one from one of the preceding passes. Because interlacing may skip a -pass you cannot be sure that the preceding pass is just 'pass-1', if you really -need to know what the last pass is record (row,pass) from the callback and use -the last recorded value each time. - -As with the user transform you can find the output row using the -PNG_ROW_FROM_PASS_ROW macro. - -You now have the option of modifying how the compression library will -run. The following functions are mainly for testing, but may be useful -in some cases, like if you need to write PNG files extremely fast and -are willing to give up some compression, or if you want to get the -maximum possible compression at the expense of slower writing. If you -have no special needs in this area, let the library do what it wants by -not calling this function at all, as it has been tuned to deliver a good -speed/compression ratio. The second parameter to png_set_filter() is -the filter method, for which the only valid values are 0 (as of the -July 1999 PNG specification, version 1.2) or 64 (if you are writing -a PNG datastream that is to be embedded in a MNG datastream). The third -parameter is a flag that indicates which filter type(s) are to be tested -for each scanline. See the PNG specification for details on the specific -filter types. - - - /* turn on or off filtering, and/or choose - specific filters. You can use either a single - PNG_FILTER_VALUE_NAME or the bitwise OR of one - or more PNG_FILTER_NAME masks. - */ - png_set_filter(png_ptr, 0, - PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | - PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | - PNG_FILTER_UP | PNG_FILTER_VALUE_UP | - PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG | - PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| - PNG_ALL_FILTERS); - -If an application wants to start and stop using particular filters during -compression, it should start out with all of the filters (to ensure that -the previous row of pixels will be stored in case it's needed later), -and then add and remove them after the start of compression. - -If you are writing a PNG datastream that is to be embedded in a MNG -datastream, the second parameter can be either 0 or 64. - -The png_set_compression_*() functions interface to the zlib compression -library, and should mostly be ignored unless you really know what you are -doing. The only generally useful call is png_set_compression_level() -which changes how much time zlib spends on trying to compress the image -data. See the Compression Library (zlib.h and algorithm.txt, distributed -with zlib) for details on the compression levels. - - #include zlib.h - - /* Set the zlib compression level */ - png_set_compression_level(png_ptr, - Z_BEST_COMPRESSION); - - /* Set other zlib parameters for compressing IDAT */ - png_set_compression_mem_level(png_ptr, 8); - png_set_compression_strategy(png_ptr, - Z_DEFAULT_STRATEGY); - png_set_compression_window_bits(png_ptr, 15); - png_set_compression_method(png_ptr, 8); - png_set_compression_buffer_size(png_ptr, 8192) - - /* Set zlib parameters for text compression - * If you don't call these, the parameters - * fall back on those defined for IDAT chunks - */ - png_set_text_compression_mem_level(png_ptr, 8); - png_set_text_compression_strategy(png_ptr, - Z_DEFAULT_STRATEGY); - png_set_text_compression_window_bits(png_ptr, 15); - png_set_text_compression_method(png_ptr, 8); - -Setting the contents of info for output - -You now need to fill in the png_info structure with all the data you -wish to write before the actual image. Note that the only thing you -are allowed to write after the image is the text chunks and the time -chunk (as of PNG Specification 1.2, anyway). See png_write_end() and -the latest PNG specification for more information on that. If you -wish to write them before the image, fill them in now, and flag that -data as being valid. If you want to wait until after the data, don't -fill them until png_write_end(). For all the fields in png_info and -their data types, see png.h. For explanations of what the fields -contain, see the PNG specification. - -Some of the more important parts of the png_info are: - - png_set_IHDR(png_ptr, info_ptr, width, height, - bit_depth, color_type, interlace_type, - compression_type, filter_method) - - width - holds the width of the image - in pixels (up to 2^31). - - height - holds the height of the image - in pixels (up to 2^31). - - bit_depth - holds the bit depth of one of the - image channels. - (valid values are 1, 2, 4, 8, 16 - and depend also on the - color_type. See also significant - bits (sBIT) below). - - color_type - describes which color/alpha - channels are present. - PNG_COLOR_TYPE_GRAY - (bit depths 1, 2, 4, 8, 16) - PNG_COLOR_TYPE_GRAY_ALPHA - (bit depths 8, 16) - PNG_COLOR_TYPE_PALETTE - (bit depths 1, 2, 4, 8) - PNG_COLOR_TYPE_RGB - (bit_depths 8, 16) - PNG_COLOR_TYPE_RGB_ALPHA - (bit_depths 8, 16) - - PNG_COLOR_MASK_PALETTE - PNG_COLOR_MASK_COLOR - PNG_COLOR_MASK_ALPHA - - interlace_type - PNG_INTERLACE_NONE or - PNG_INTERLACE_ADAM7 - - compression_type - (must be - PNG_COMPRESSION_TYPE_DEFAULT) - - filter_method - (must be PNG_FILTER_TYPE_DEFAULT - or, if you are writing a PNG to - be embedded in a MNG datastream, - can also be - PNG_INTRAPIXEL_DIFFERENCING) - -If you call png_set_IHDR(), the call must appear before any of the -other png_set_*() functions, because they might require access to some of -the IHDR settings. The remaining png_set_*() functions can be called -in any order. - -If you wish, you can reset the compression_type, interlace_type, or -filter_method later by calling png_set_IHDR() again; if you do this, the -width, height, bit_depth, and color_type must be the same in each call. - - png_set_PLTE(png_ptr, info_ptr, palette, - num_palette); - - palette - the palette for the file - (array of png_color) - num_palette - number of entries in the palette - - png_set_gAMA(png_ptr, info_ptr, file_gamma); - png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); - - file_gamma - the gamma at which the image was - created (PNG_INFO_gAMA) - - int_file_gamma - 100,000 times the gamma at which - the image was created - - png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y, - green_x, green_y, blue_x, blue_y) - png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X, - green_Y, green_Z, blue_X, blue_Y, blue_Z) - png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y, - int_red_x, int_red_y, int_green_x, int_green_y, - int_blue_x, int_blue_y) - png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y, - int_red_Z, int_green_X, int_green_Y, int_green_Z, - int_blue_X, int_blue_Y, int_blue_Z) - - {white,red,green,blue}_{x,y} - A color space encoding specified using the chromaticities - of the end points and the white point. - - {red,green,blue}_{X,Y,Z} - A color space encoding specified using the encoding end - points - the CIE tristimulus specification of the intended - color of the red, green and blue channels in the PNG RGB - data. The white point is simply the sum of the three end - points. - - png_set_sRGB(png_ptr, info_ptr, srgb_intent); - - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of - the sRGB chunk means that the pixel - data is in the sRGB color space. - This chunk also implies specific - values of gAMA and cHRM. Rendering - intent is the CSS-1 property that - has been defined by the International - Color Consortium - (http://www.color.org). - It can be one of - PNG_sRGB_INTENT_SATURATION, - PNG_sRGB_INTENT_PERCEPTUAL, - PNG_sRGB_INTENT_ABSOLUTE, or - PNG_sRGB_INTENT_RELATIVE. - - - png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, - srgb_intent); - - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of the - sRGB chunk means that the pixel - data is in the sRGB color space. - This function also causes gAMA and - cHRM chunks with the specific values - that are consistent with sRGB to be - written. - - png_set_iCCP(png_ptr, info_ptr, name, compression_type, - profile, proflen); - - name - The profile name. - - compression_type - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - - profile - International Color Consortium color - profile data. May contain NULs. - - proflen - length of profile data in bytes. - - png_set_sBIT(png_ptr, info_ptr, sig_bit); - - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, red, - green, and blue channels, whichever are - appropriate for the given color type - (png_color_16) - - png_set_tRNS(png_ptr, info_ptr, trans_alpha, - num_trans, trans_color); - - trans_alpha - array of alpha (transparency) - entries for palette (PNG_INFO_tRNS) - - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - trans_color - graylevel or color sample values - (in order red, green, blue) of the - single transparent color for - non-paletted images (PNG_INFO_tRNS) - - png_set_hIST(png_ptr, info_ptr, hist); - - hist - histogram of palette (array of - png_uint_16) (PNG_INFO_hIST) - - png_set_tIME(png_ptr, info_ptr, mod_time); - - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_set_bKGD(png_ptr, info_ptr, background); - - background - background color (of type - png_color_16p) (PNG_VALID_bKGD) - - png_set_text(png_ptr, info_ptr, text_ptr, num_text); - - text_ptr - array of png_text holding image - comments - - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - text_ptr[i].text - text comments for current - keyword. Can be NULL or empty. - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - text_ptr[i].lang - language of comment (NULL or - empty for unknown). - text_ptr[i].translated_keyword - keyword in UTF-8 (NULL - or empty for unknown). - - Note that the itxt_length, lang, and lang_key - members of the text_ptr structure only exist when the - library is built with iTXt chunk support. Prior to - libpng-1.4.0 the library was built by default without - iTXt support. Also note that when iTXt is supported, - they contain NULL pointers when the "compression" - field contains PNG_TEXT_COMPRESSION_NONE or - PNG_TEXT_COMPRESSION_zTXt. - - num_text - number of comments - - png_set_sPLT(png_ptr, info_ptr, &palette_ptr, - num_spalettes); - - palette_ptr - array of png_sPLT_struct structures - to be added to the list of palettes - in the info structure. - num_spalettes - number of palette structures to be - added. - - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, - unit_type); - - offset_x - positive offset from the left - edge of the screen - - offset_y - positive offset from the top - edge of the screen - - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, - unit_type); - - res_x - pixels/unit physical resolution - in x direction - - res_y - pixels/unit physical resolution - in y direction - - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_set_sCAL(png_ptr, info_ptr, unit, width, height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - - height - height of a pixel in physical scale units - (width and height are doubles) - - png_set_sCAL_s(png_ptr, info_ptr, unit, width, height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - expressed as a string - - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - png_set_unknown_chunks(png_ptr, info_ptr, &unknowns, - num_unknowns) - - unknowns - array of png_unknown_chunk - structures holding unknown chunks - unknowns[i].name - name of unknown chunk - unknowns[i].data - data of unknown chunk - unknowns[i].size - size of unknown chunk's data - unknowns[i].location - position to write chunk in file - 0: do not write chunk - PNG_HAVE_IHDR: before PLTE - PNG_HAVE_PLTE: before IDAT - PNG_AFTER_IDAT: after IDAT - -The "location" member is set automatically according to -what part of the output file has already been written. -You can change its value after calling png_set_unknown_chunks() -as demonstrated in pngtest.c. Within each of the "locations", -the chunks are sequenced according to their position in the -structure (that is, the value of "i", which is the order in which -the chunk was either read from the input file or defined with -png_set_unknown_chunks). - -A quick word about text and num_text. text is an array of png_text -structures. num_text is the number of valid structures in the array. -Each png_text structure holds a language code, a keyword, a text value, -and a compression type. - -The compression types have the same valid numbers as the compression -types of the image data. Currently, the only valid number is zero. -However, you can store text either compressed or uncompressed, unlike -images, which always have to be compressed. So if you don't want the -text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE. -Because tEXt and zTXt chunks don't have a language field, if you -specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt -any language code or translated keyword will not be written out. - -Until text gets around a few hundred bytes, it is not worth compressing it. -After the text has been written out to the file, the compression type -is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR, -so that it isn't written out again at the end (in case you are calling -png_write_end() with the same struct). - -The keywords that are given in the PNG Specification are: - - Title Short (one line) title or - caption for image - - Author Name of image's creator - - Description Description of image (possibly long) - - Copyright Copyright notice - - Creation Time Time of original image creation - (usually RFC 1123 format, see below) - - Software Software used to create the image - - Disclaimer Legal disclaimer - - Warning Warning of nature of content - - Source Device used to create the image - - Comment Miscellaneous comment; conversion - from other image format - -The keyword-text pairs work like this. Keywords should be short -simple descriptions of what the comment is about. Some typical -keywords are found in the PNG specification, as is some recommendations -on keywords. You can repeat keywords in a file. You can even write -some text before the image and some after. For example, you may want -to put a description of the image before the image, but leave the -disclaimer until after, so viewers working over modem connections -don't have to wait for the disclaimer to go over the modem before -they start seeing the image. Finally, keywords should be full -words, not abbreviations. Keywords and text are in the ISO 8859-1 -(Latin-1) character set (a superset of regular ASCII) and can not -contain NUL characters, and should not contain control or other -unprintable characters. To make the comments widely readable, stick -with basic ASCII, and avoid machine specific character set extensions -like the IBM-PC character set. The keyword must be present, but -you can leave off the text string on non-compressed pairs. -Compressed pairs must have a text string, as only the text string -is compressed anyway, so the compression would be meaningless. - -PNG supports modification time via the png_time structure. Two -conversion routines are provided, png_convert_from_time_t() for -time_t and png_convert_from_struct_tm() for struct tm. The -time_t routine uses gmtime(). You don't have to use either of -these, but if you wish to fill in the png_time structure directly, -you should provide the time in universal time (GMT) if possible -instead of your local time. Note that the year number is the full -year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and -that months start with 1. - -If you want to store the time of the original image creation, you should -use a plain tEXt chunk with the "Creation Time" keyword. This is -necessary because the "creation time" of a PNG image is somewhat vague, -depending on whether you mean the PNG file, the time the image was -created in a non-PNG format, a still photo from which the image was -scanned, or possibly the subject matter itself. In order to facilitate -machine-readable dates, it is recommended that the "Creation Time" -tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), -although this isn't a requirement. Unlike the tIME chunk, the -"Creation Time" tEXt chunk is not expected to be automatically changed -by the software. To facilitate the use of RFC 1123 dates, a function -png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to -convert from PNG time to an RFC 1123 format string. The caller must provide -a writeable buffer of at least 29 bytes. - -Writing unknown chunks - -You can use the png_set_unknown_chunks function to queue up private chunks -for writing. You give it a chunk name, location, raw data, and a size. You -also must use png_set_keep_unknown_chunks() to ensure that libpng will -handle them. That's all there is to it. The chunks will be written by the -next following png_write_info_before_PLTE, png_write_info, or png_write_end -function, depending upon the specified location. Any chunks previously -read into the info structure's unknown-chunk list will also be written out -in a sequence that satisfies the PNG specification's ordering rules. - -Here is an example of writing two private chunks, prVt and miNE: - - #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - /* Set unknown chunk data */ - png_unknown_chunk unk_chunk[2]; - strcpy((char *) unk_chunk[0].name, "prVt"; - unk_chunk[0].data = (unsigned char *) "PRIVATE DATA"; - unk_chunk[0].size = strlen(unk_chunk[0].data)+1; - unk_chunk[0].location = PNG_HAVE_IHDR; - strcpy((char *) unk_chunk[1].name, "miNE"; - unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA"; - unk_chunk[1].size = strlen(unk_chunk[0].data)+1; - unk_chunk[1].location = PNG_AFTER_IDAT; - png_set_unknown_chunks(write_ptr, write_info_ptr, - unk_chunk, 2); - /* Needed because miNE is not safe-to-copy */ - png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, - (png_bytep) "miNE", 1); - # if PNG_LIBPNG_VER < 10600 - /* Deal with unknown chunk location bug in 1.5.x and earlier */ - png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR); - png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT); - # endif - # if PNG_LIBPNG_VER < 10500 - /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0, - * one before IDAT and another after IDAT, so don't use it; only use - * PNG_HAVE_IHDR location. This call resets the location previously - * set by assignment and png_set_unknown_chunk_location() for chunk 1. - */ - png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR); - # endif - #endif - -The high-level write interface - -At this point there are two ways to proceed; through the high-level -write interface, or through a sequence of low-level write operations. -You can use the high-level interface if your image data is present -in the info structure. All defined output -transformations are permitted, enabled by the following masks. - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - PNG_TRANSFORM_STRIP_FILLER Strip out filler - bytes (deprecated). - PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading - filler bytes - PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing - filler bytes - -If you have valid image data in the info structure (you can use -png_set_rows() to put image data in the info structure), simply do this: - - png_write_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of some set of -transformation flags. This call is equivalent to png_write_info(), -followed the set of transformations indicated by the transform mask, -then png_write_image(), and finally png_write_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future output transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_write_png(). - -The low-level write interface - -If you are going the low-level route instead, you are now ready to -write all the file information up to the actual image data. You do -this with a call to png_write_info(). - - png_write_info(png_ptr, info_ptr); - -Note that there is one transformation you may need to do before -png_write_info(). In PNG files, the alpha channel in an image is the -level of opacity. If your data is supplied as a level of transparency, -you can invert the alpha channel before you write it, so that 0 is -fully transparent and 255 (in 8-bit or paletted images) or 65535 -(in 16-bit images) is fully opaque, with - - png_set_invert_alpha(png_ptr); - -This must appear before png_write_info() instead of later with the -other transformations because in the case of paletted images the tRNS -chunk data has to be inverted before the tRNS chunk is written. If -your image is not a paletted image, the tRNS data (which in such cases -represents a single color to be rendered as transparent) won't need to -be changed, and you can safely do this transformation after your -png_write_info() call. - -If you need to write a private chunk that you want to appear before -the PLTE chunk when PLTE is present, you can write the PNG info in -two steps, and insert code to write your own chunk between them: - - png_write_info_before_PLTE(png_ptr, info_ptr); - png_set_unknown_chunks(png_ptr, info_ptr, ...); - png_write_info(png_ptr, info_ptr); - -After you've written the file information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. Even though each transformation -checks to see if it has data that it can do something with, you should -make sure to only enable a transformation if it will be valid for the -data. For example, don't swap red and blue on grayscale data. - -PNG files store RGB pixels packed into 3 or 6 bytes. This code tells -the library to strip input data that has 4 or 8 bytes per pixel down -to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2 -bytes per pixel). - - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); - -where the 0 is unused, and the location is either PNG_FILLER_BEFORE or -PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel -is stored XRGB or RGBX. - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit files. -If the data is supplied at 1 pixel per byte, use this code, which will -correctly pack the pixels into a single byte: - - png_set_packing(png_ptr); - -PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your -data is of another bit depth, you can write an sBIT chunk into the -file so that decoders can recover the original data if desired. - - /* Set the true bit depth of the image data */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit.red = true_bit_depth; - sig_bit.green = true_bit_depth; - sig_bit.blue = true_bit_depth; - } - - else - { - sig_bit.gray = true_bit_depth; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - sig_bit.alpha = true_bit_depth; - } - - png_set_sBIT(png_ptr, info_ptr, &sig_bit); - -If the data is stored in the row buffer in a bit depth other than -one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG), -this will scale the values to appear to be the correct bit depth as -is required by PNG. - - png_set_shift(png_ptr, &sig_bit); - -PNG files store 16-bit pixels in network byte order (big-endian, -ie. most significant bits first). This code would be used if they are -supplied the other way (little-endian, i.e. least significant bits -first, the way PCs store them): - - if (bit_depth > 8) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -PNG files store 3 color pixels in red, green, blue order. This code -would be used if they are supplied as blue, green, red: - - png_set_bgr(png_ptr); - -PNG files describe monochrome as black being zero and white being -one. This code would be used if the pixels are supplied with this reversed -(black being one and white being zero): - - png_set_invert_mono(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_write_user_transform_fn(png_ptr, - write_transform_fn); - -You must supply the function - - void write_transform_fn(png_structp png_ptr, png_row_infop - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -before any of the other transformations are processed. If supported -libpng also supplies an information routine that may be called from -your callback: - - png_get_current_row_number(png_ptr); - png_get_current_pass_number(png_ptr); - -This returns the current row passed to the transform. With interlaced -images the value returned is the row in the input sub-image image. Use -PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to -find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). - -The discussion of interlace handling above contains more information on how to -use these values. - -You can also set up a pointer to a user structure for use by your -callback function. - - png_set_user_transform_info(png_ptr, user_ptr, 0, 0); - -The user_channels and user_depth parameters of this function are ignored -when writing; you can set them to zero as shown. - -You can retrieve the pointer via the function png_get_user_transform_ptr(). -For example: - - voidp write_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -It is possible to have libpng flush any pending output, either manually, -or automatically after a certain number of lines have been written. To -flush the output stream a single time call: - - png_write_flush(png_ptr); - -and to have libpng flush the output stream periodically after a certain -number of scanlines have been written, call: - - png_set_flush(png_ptr, nrows); - -Note that the distance between rows is from the last time png_write_flush() -was called, or the first row of the image if it has never been called. -So if you write 50 lines, and then png_set_flush 25, it will flush the -output on the next scanline, and every 25 lines thereafter, unless -png_write_flush() is called before 25 more lines have been written. -If nrows is too small (less than about 10 lines for a 640 pixel wide -RGB image) the image compression may decrease noticeably (although this -may be acceptable for real-time applications). Infrequent flushing will -only degrade the compression performance by a few percent over images -that do not use flushing. - -Writing the image data - -That's it for the transformations. Now you can write the image data. -The simplest way to do this is in one function call. If you have the -whole image in memory, you can just call png_write_image() and libpng -will write the image. You will need to pass in an array of pointers to -each row. This function automatically handles interlacing, so you don't -need to call png_set_interlace_handling() or call this function multiple -times, or any of that other stuff necessary with png_write_rows(). - - png_write_image(png_ptr, row_pointers); - -where row_pointers is: - - png_byte *row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to write the whole image at once, you can -use png_write_rows() instead. If the file is not interlaced, -this is simple: - - png_write_rows(png_ptr, row_pointers, - number_of_rows); - -row_pointers is the same as in the png_write_image() call. - -If you are just writing one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - - png_write_row(png_ptr, row_pointer); - -When the file is interlaced, things can get a good deal more complicated. -The only currently (as of the PNG Specification version 1.2, dated July -1999) defined interlacing scheme for PNG files is the "Adam7" interlace -scheme, that breaks down an image into seven smaller images of varying -size. libpng will build these images for you, or you can do them -yourself. If you want to build them yourself, see the PNG specification -for details of which pixels to write when. - -If you don't want libpng to handle the interlacing details, just -use png_set_interlace_handling() and call png_write_rows() the -correct number of times to write all the sub-images -(png_set_interlace_handling() returns the number of sub-images.) - -If you want libpng to build the sub-images, call this before you start -writing any rows: - - number_of_passes = png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this is seven, -but may change if another interlace type is added. - -Then write the complete image number_of_passes times. - - png_write_rows(png_ptr, row_pointers, number_of_rows); - -Think carefully before you write an interlaced image. Typically code that -reads such images reads all the image data into memory, uncompressed, before -doing any processing. Only code that can display an image on the fly can -take advantage of the interlacing and even then the image has to be exactly -the correct size for the output device, because scaling an image requires -adjacent pixels and these are not available until all the passes have been -read. - -If you do write an interlaced image you will hardly ever need to handle -the interlacing yourself. Call png_set_interlace_handling() and use the -approach described above. - -The only time it is conceivable that you will really need to write an -interlaced image pass-by-pass is when you have read one pass by pass and -made some pixel-by-pixel transformation to it, as described in the read -code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros -to determine the size of each sub-image in turn and simply write the rows -you obtained from the read code. - -Finishing a sequential write - -After you are finished writing the image, you should finish writing -the file. If you are interested in writing comments or time, you should -pass an appropriately filled png_info pointer. If you are not interested, -you can pass NULL. - - png_write_end(png_ptr, info_ptr); - -When you are done, you can free all memory used by libpng like this: - - png_destroy_write_struct(&png_ptr, &info_ptr); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - - seq - sequence number of item to be freed - (-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those cases do nothing. -The "seq" parameter is ignored if only one item of the selected data -type, such as PLTE, is allowed. If "seq" is not -1, and multiple items -are allowed for the data type identified in the mask, such as text or -sPLT, only the n'th item in the structure is freed, where n is "seq". - -If you allocated data such as a palette that you passed in to libpng -with png_set_*, you must not free it until just before the call to -png_destroy_write_struct(). - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_calloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - - mask - which data elements are affected - same choices as in png_free_data() - -For example, to transfer responsibility for some data from a read structure -to a write structure, you could use - - png_data_freer(read_ptr, read_info_ptr, - PNG_USER_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - - png_data_freer(write_ptr, write_info_ptr, - PNG_DESTROY_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - -thereby briefly reassigning responsibility for freeing to the user but -immediately afterwards reassigning it once more to the write_destroy -function. Having done this, it would then be safe to destroy the read -structure and continue to use the PLTE, tRNS, and hIST data in the write -structure. - -This function only affects data that has already been allocated. -You can call this function before calling after the png_set_*() functions -to control whether the user or png_destroy_*() is supposed to free the data. -When the user assumes responsibility for libpng-allocated data, the -application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_calloc() to allocate it. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. -For a more compact example of writing a PNG image, see the file example.c. - -V. Simplified API - -The simplified API, which became available in libpng-1.6.0, hides the details -of both libpng and the PNG file format itself. -It allows PNG files to be read into a very limited number of -in-memory bitmap formats or to be written from the same formats. If these -formats do not accommodate your needs then you can, and should, use the more -sophisticated APIs above - these support a wide variety of in-memory formats -and a wide variety of sophisticated transformations to those formats as well -as a wide variety of APIs to manipulate ancilliary information. - -To read a PNG file using the simplified API: - - 1) Declare a 'png_image' structure (see below) on the - stack and memset() it to all zero. - - 2) Call the appropriate png_image_begin_read... function. - - 3) Set the png_image 'format' member to the required - format and allocate a buffer for the image. - - 4) Call png_image_finish_read to read the image into - your buffer. - -There are no restrictions on the format of the PNG input itself; all valid -color types, bit depths, and interlace methods are acceptable, and the -input image is transformed as necessary to the requested in-memory format -during the png_image_finish_read() step. - -To write a PNG file using the simplified API: - - 1) Declare a 'png_image' structure on the stack and memset() - it to all zero. - - 2) Initialize the members of the structure that describe the - image, setting the 'format' member to the format of the - image in memory. - - 3) Call the appropriate png_image_write... function with a - pointer to the image to write the PNG data. - -png_image is a structure that describes the in-memory format of an image -when it is being read or define the in-memory format of an image that you -need to write. The "png_image" structure contains the following members: - - png_uint_32 version Set to PNG_IMAGE_VERSION - png_uint_32 width Image width in pixels (columns) - png_uint_32 height Image height in pixels (rows) - png_uint_32 format Image format as defined below - png_uint_32 flags A bit mask containing informational flags - png_controlp opaque Initialize to NULL, free with png_image_free - png_uint_32 colormap_entries; Number of entries in the color-map - png_uint_32 warning_or_error; - char message[64]; - -In the event of an error or warning the following field warning_or_error -field will be set to a non-zero value and the 'message' field will contain -a '\0' terminated string with the libpng error or warning message. If both -warnings and an error were encountered, only the error is recorded. If there -are multiple warnings, only the first one is recorded. - -The upper 30 bits of this value are reserved; the low two bits contain -a two bit code such that a value more than 1 indicates a failure in the API -just called: - - 0 - no warning or error - 1 - warning - 2 - error - 3 - error preceded by warning - -The pixels (samples) of the image have one to four channels whose components -have original values in the range 0 to 1.0: - - 1: A single gray or luminance channel (G). - 2: A gray/luminance channel and an alpha channel (GA). - 3: Three red, green, blue color channels (RGB). - 4: Three color channels and an alpha channel (RGBA). - -The channels are encoded in one of two ways: - - a) As a small integer, value 0..255, contained in a single byte. For the -alpha channel the original value is simply value/255. For the color or -luminance channels the value is encoded according to the sRGB specification -and matches the 8-bit format expected by typical display devices. - -The color/gray channels are not scaled (pre-multiplied) by the alpha -channel and are suitable for passing to color management software. - - b) As a value in the range 0..65535, contained in a 2-byte integer, in -the native byte order of the platform on which the application is running. -All channels can be converted to the original value by dividing by 65535; all -channels are linear. Color channels use the RGB encoding (RGB end-points) of -the sRGB specification. This encoding is identified by the -PNG_FORMAT_FLAG_LINEAR flag below. - -When an alpha channel is present it is expected to denote pixel coverage -of the color or luminance channels and is returned as an associated alpha -channel: the color/gray channels are scaled (pre-multiplied) by the alpha -value. - -When a color-mapped image is used as a result of calling -png_image_read_colormap or png_image_write_colormap the channels are encoded -in the color-map and the descriptions above apply to the color-map entries. -The image data is encoded as small integers, value 0..255, that index the -entries in the color-map. One integer (one byte) is stored for each pixel. - -PNG_FORMAT_* - -The #defines to be used in png_image::format. Each #define identifies a -particular layout of channel data and, if present, alpha values. There are -separate defines for each of the two channel encodings. - -A format is built up using single bit flag values. Not all combinations are -valid: use the bit flag values below for testing a format returned by the -read APIs, but set formats from the derived values. - -When reading or writing color-mapped images the format should be set to the -format of the entries in the color-map then png_image_{read,write}_colormap -called to read or write the color-map and set the format correctly for the -image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! - -NOTE: libpng can be built with particular features disabled, if you see -compiler errors because the definition of one of the following flags has been -compiled out it is because libpng does not have the required support. It is -possible, however, for the libpng configuration to enable the format on just -read or just write; in that case you may see an error at run time. You can -guard against this by checking for the definition of: - - PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED - - PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel - PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale - PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte - PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only - PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB - PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first - -Supported formats are as follows. Future versions of libpng may support more -formats; for compatibility with older versions simply check if the format -macro is defined using #ifdef. These defines describe the in-memory layout -of the components of the pixels of the image. - -First the single byte formats: - - PNG_FORMAT_GRAY 0 - PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA - PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) - PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR - PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) - PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) - PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) - -Then the linear 2-byte formats. When naming these "Y" is used to -indicate a luminance (gray) channel. The component order within the pixel -is always the same - there is no provision for swapping the order of the -components in the linear format. The components are 16-bit integers in -the native byte order for your platform, and there is no provision for -swapping the bytes to a different endian condition. - - PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR - PNG_FORMAT_LINEAR_Y_ALPHA - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_LINEAR_RGB - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) - PNG_FORMAT_LINEAR_RGB_ALPHA - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR| - PNG_FORMAT_FLAG_ALPHA) - -Color-mapped formats are obtained by calling png_image_{read,write}_colormap, -as appropriate after setting png_image::format to the format of the color-map -to be read or written. Applications may check the value of -PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The -format of the color-map may be extracted using the following macro. - - PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP) - -PNG_IMAGE macros - -These are convenience macros to derive information from a png_image -structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the -actual image sample values - either the entries in the color-map or the -pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values -for the pixels and will always return 1 after a call to -png_image_{read,write}_colormap. The remaining macros return information -about the rows in the image and the complete image. - -NOTE: All the macros that take a png_image::format parameter are compile time -constants if the format parameter is, itself, a constant. Therefore these -macros can be used in array declarations and case labels where required. -Similarly the macros are also pre-processor constants (sizeof is not used) so -they can be used in #if tests. - -First the information about the samples. - - PNG_IMAGE_SAMPLE_CHANNELS(fmt) - Returns the total number of channels in a given format: 1..4 - - PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt) - Returns the size in bytes of a single component of a pixel or color-map - entry (as appropriate) in the image. - - PNG_IMAGE_SAMPLE_SIZE(fmt) - This is the size of the sample data for one sample. If the image is - color-mapped it is the size of one color-map entry (and image pixels are - one byte in size), otherwise it is the size of one image pixel. - - PNG_IMAGE_COLORMAP_SIZE(fmt) - The size of the color-map required by the format; this is the size of the - color-map buffer passed to the png_image_{read,write}_colormap APIs, it is - a fixed number determined by the format so can easily be allocated on the - stack if necessary. - -#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ - (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) - /* The maximum size of the color-map required by the format expressed in a - * count of components. This can be used to compile-time allocate a - * color-map: - * - * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; - * - * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; - * - * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the - * information from one of the png_image_begin_read_ APIs and dynamically - * allocate the required memory. - */ - - -Corresponding information about the pixels - - PNG_IMAGE_PIXEL_(test,fmt) - - PNG_IMAGE_PIXEL_CHANNELS(fmt) - The number of separate channels (components) in a pixel; 1 for a - color-mapped image. - - PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ - The size, in bytes, of each component in a pixel; 1 for a color-mapped - image. - - PNG_IMAGE_PIXEL_SIZE(fmt) - The size, in bytes, of a complete pixel; 1 for a color-mapped image. - -Information about the whole row, or whole image - - PNG_IMAGE_ROW_STRIDE(image) - Returns the total number of components in a single row of the image; this - is the minimum 'row stride', the minimum count of components between each - row. For a color-mapped image this is the minimum number of bytes in a - row. - - If you need the stride measured in bytes, row_stride_bytes is - PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt) - plus any padding bytes that your application might need, for example - to start the next row on a 4-byte boundary. - - PNG_IMAGE_BUFFER_SIZE(image, row_stride) - Returns the size, in bytes, of an image buffer given a png_image and a row - stride - the number of components to leave space for in each row. This - macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE - when the image has 2-byte components. - - PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01 - This indicates the the RGB values of the in-memory bitmap do not - correspond to the red, green and blue end-points defined by sRGB. - - PNG_IMAGE_FLAG_COLORMAP == 0x02 - The PNG is color-mapped. If this flag is set png_image_read_colormap - can be used without further loss of image information. If it is not set - png_image_read_colormap will cause significant loss if the image has any - -READ APIs - - The png_image passed to the read APIs must have been initialized by setting - the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.) - - int png_image_begin_read_from_file( png_imagep image, - const char *file_name) - - The named file is opened for read and the image header - is filled in from the PNG header in the file. - - int png_image_begin_read_from_stdio (png_imagep image, - FILE* file) - - The PNG header is read from the stdio FILE object. - - int png_image_begin_read_from_memory(png_imagep image, - png_const_voidp memory, png_size_t size) - - The PNG header is read from the given memory buffer. - - int png_image_finish_read(png_imagep image, - png_colorp background, void *buffer, - png_int_32 row_stride, void *colormap)); - - Finish reading the image into the supplied buffer and - clean up the png_image structure. - - row_stride is the step, in png_byte or png_uint_16 units - as appropriate, between adjacent rows. A positive stride - indicates that the top-most row is first in the buffer - - the normal top-down arrangement. A negative stride - indicates that the bottom-most row is first in the buffer. - - background need only be supplied if an alpha channel must - be removed from a png_byte format and the removal is to be - done by compositing on a solid color; otherwise it may be - NULL and any composition will be done directly onto the - buffer. The value is an sRGB color to use for the - background, for grayscale output the green channel is used. - - For linear output removing the alpha channel is always done - by compositing on black. - - void png_image_free(png_imagep image) - - Free any data allocated by libpng in image->opaque, - setting the pointer to NULL. May be called at any time - after the structure is initialized. - -When the simplified API needs to convert between sRGB and linear colorspaces, -the actual sRGB transfer curve defined in the sRGB specification (see the -article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 -approximation used elsewhere in libpng. - -WRITE APIS - -For write you must initialize a png_image structure to describe the image to -be written: - - version: must be set to PNG_IMAGE_VERSION - opaque: must be initialized to NULL - width: image width in pixels - height: image height in rows - format: the format of the data you wish to write - flags: set to 0 unless one of the defined flags applies; set - PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images - where the RGB values do not correspond to the colors in sRGB. - colormap_entries: set to the number of entries in the color-map (0 to 256) - - int png_image_write_to_file, (png_imagep image, - const char *file, int convert_to_8bit, const void *buffer, - png_int_32 row_stride, const void *colormap)); - - Write the image to the named file. - - int png_image_write_to_stdio(png_imagep image, FILE *file, - int convert_to_8_bit, const void *buffer, - png_int_32 row_stride, const void *colormap) - - Write the image to the given (FILE*). - -With all write APIs if image is in one of the linear formats with -(png_uint_16) data then setting convert_to_8_bit will cause the output to be -a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise -a 16-bit linear encoded PNG file is written. - -With all APIs row_stride is handled as in the read APIs - it is the spacing -from one row to the next in component sized units (float) and if negative -indicates a bottom-up row layout in the buffer. - -Note that the write API does not support interlacing, sub-8-bit pixels, -and indexed (paletted) images. - -VI. Modifying/Customizing libpng - -There are two issues here. The first is changing how libpng does -standard things like memory allocation, input/output, and error handling. -The second deals with more complicated things like adding new chunks, -adding new transformations, and generally changing how libpng works. -Both of those are compile-time issues; that is, they are generally -determined at the time the code is written, and there is rarely a need -to provide the user with a means of changing them. - -Memory allocation, input/output, and error handling - -All of the memory allocation, input/output, and error handling in libpng -goes through callbacks that are user-settable. The default routines are -in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change -these functions, call the appropriate png_set_*_fn() function. - -Memory allocation is done through the functions png_malloc(), png_calloc(), -and png_free(). The png_malloc() and png_free() functions currently just -call the standard C functions and png_calloc() calls png_malloc() and then -clears the newly allocated memory to zero; note that png_calloc(png_ptr, size) -is not the same as the calloc(number, size) function provided by stdlib.h. -There is limited support for certain systems with segmented memory -architectures and the types of pointers declared by png.h match this; you -will have to use appropriate pointers in your application. If you prefer -to use a different method of allocating and freeing data, you can use -png_create_read_struct_2() or png_create_write_struct_2() to register your -own functions as described above. These functions also provide a void -pointer that can be retrieved via - - mem_ptr=png_get_mem_ptr(png_ptr); - -Your replacement memory functions must have prototypes as follows: - - png_voidp malloc_fn(png_structp png_ptr, - png_alloc_size_t size); - - void free_fn(png_structp png_ptr, png_voidp ptr); - -Your malloc_fn() must return NULL in case of failure. The png_malloc() -function will normally call png_error() if it receives a NULL from the -system memory allocator or from your replacement malloc_fn(). - -Your free_fn() will never be called with a NULL ptr, since libpng's -png_free() checks for NULL before calling free_fn(). - -Input/Output in libpng is done through png_read() and png_write(), -which currently just call fread() and fwrite(). The FILE * is stored in -png_struct and is initialized via png_init_io(). If you wish to change -the method of I/O, the library supplies callbacks that you can set -through the function png_set_read_fn() and png_set_write_fn() at run -time, instead of calling the png_init_io() function. These functions -also provide a void pointer that can be retrieved via the function -png_get_io_ptr(). For example: - - png_set_read_fn(png_structp read_ptr, - voidp read_io_ptr, png_rw_ptr read_data_fn) - - png_set_write_fn(png_structp write_ptr, - voidp write_io_ptr, png_rw_ptr write_data_fn, - png_flush_ptr output_flush_fn); - - voidp read_io_ptr = png_get_io_ptr(read_ptr); - voidp write_io_ptr = png_get_io_ptr(write_ptr); - -The replacement I/O functions must have prototypes as follows: - - void user_read_data(png_structp png_ptr, - png_bytep data, png_size_t length); - - void user_write_data(png_structp png_ptr, - png_bytep data, png_size_t length); - - void user_flush_data(png_structp png_ptr); - -The user_read_data() function is responsible for detecting and -handling end-of-data errors. - -Supplying NULL for the read, write, or flush functions sets them back -to using the default C stream functions, which expect the io_ptr to -point to a standard *FILE structure. It is probably a mistake -to use NULL for one of write_data_fn and output_flush_fn but not both -of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined. -It is an error to read from a write stream, and vice versa. - -Error handling in libpng is done through png_error() and png_warning(). -Errors handled through png_error() are fatal, meaning that png_error() -should never return to its caller. Currently, this is handled via -setjmp() and longjmp() (unless you have compiled libpng with -PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()), -but you could change this to do things like exit() if you should wish, -as long as your function does not return. - -On non-fatal errors, png_warning() is called -to print a warning message, and then control returns to the calling code. -By default png_error() and png_warning() print a message on stderr via -fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined -(because you don't want the messages) or PNG_NO_STDIO defined (because -fprintf() isn't available). If you wish to change the behavior of the error -functions, you will need to set up your own message callbacks. These -functions are normally supplied at the time that the png_struct is created. -It is also possible to redirect errors and warnings to your own replacement -functions after png_create_*_struct() has been called by calling: - - png_set_error_fn(png_structp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warning_fn); - - png_voidp error_ptr = png_get_error_ptr(png_ptr); - -If NULL is supplied for either error_fn or warning_fn, then the libpng -default function will be used, calling fprintf() and/or longjmp() if a -problem is encountered. The replacement error functions should have -parameters as follows: - - void user_error_fn(png_structp png_ptr, - png_const_charp error_msg); - - void user_warning_fn(png_structp png_ptr, - png_const_charp warning_msg); - -The motivation behind using setjmp() and longjmp() is the C++ throw and -catch exception handling methods. This makes the code much easier to write, -as there is no need to check every return code of every function call. -However, there are some uncertainties about the status of local variables -after a longjmp, so the user may want to be careful about doing anything -after setjmp returns non-zero besides returning itself. Consult your -compiler documentation for more details. For an alternative approach, you -may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), -which is illustrated in pngvalid.c and in contrib/visupng. - -Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. -You can use this to handle certain errors (normally handled as errors) -as warnings. - - png_set_benign_errors (png_ptr, int allowed); - - allowed: 0: treat png_benign_error() as an error. - 1: treat png_benign_error() as a warning. - -As of libpng-1.6.0, the default condition is to treat benign errors as -warnings while reading and as errors while writing. - -Custom chunks - -If you need to read or write custom chunks, you may need to get deeper -into the libpng code. The library now has mechanisms for storing -and writing chunks of unknown type; you can even declare callbacks -for custom chunks. However, this may not be good enough if the -library code itself needs to know about interactions between your -chunk and existing `intrinsic' chunks. - -If you need to write a new intrinsic chunk, first read the PNG -specification. Acquire a first level of understanding of how it works. -Pay particular attention to the sections that describe chunk names, -and look at how other chunks were designed, so you can do things -similarly. Second, check out the sections of libpng that read and -write chunks. Try to find a chunk that is similar to yours and use -it as a template. More details can be found in the comments inside -the code. It is best to handle private or unknown chunks in a generic method, -via callback functions, instead of by modifying libpng functions. This -is illustrated in pngtest.c, which uses a callback function to handle a -private "vpAg" chunk and the new "sTER" chunk, which are both unknown to -libpng. - -If you wish to write your own transformation for the data, look through -the part of the code that does the transformations, and check out some of -the simpler ones to get an idea of how they work. Try to find a similar -transformation to the one you want to add and copy off of it. More details -can be found in the comments inside the code itself. - -Configuring for gui/windowing platforms: - -You will need to write new error and warning functions that use the GUI -interface, as described previously, and set them to be the error and -warning functions at the time that png_create_*_struct() is called, -in order to have them available during the structure initialization. -They can be changed later via png_set_error_fn(). On some compilers, -you may also have to change the memory allocators (png_malloc, etc.). - -Configuring zlib: - -There are special functions to configure the compression. Perhaps the -most useful one changes the compression level, which currently uses -input compression values in the range 0 - 9. The library normally -uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests -have shown that for a large majority of images, compression values in -the range 3-6 compress nearly as well as higher levels, and do so much -faster. For online applications it may be desirable to have maximum speed -(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also -specify no compression (Z_NO_COMPRESSION = 0), but this would create -files larger than just storing the raw bitmap. You can specify the -compression level by calling: - - #include zlib.h - png_set_compression_level(png_ptr, level); - -Another useful one is to reduce the memory level used by the library. -The memory level defaults to 8, but it can be lowered if you are -short on memory (running DOS, for example, where you only have 640K). -Note that the memory level does have an effect on compression; among -other things, lower levels will result in sections of incompressible -data being emitted in smaller stored blocks, with a correspondingly -larger relative overhead of up to 15% in the worst case. - - #include zlib.h - png_set_compression_mem_level(png_ptr, level); - -The other functions are for configuring zlib. They are not recommended -for normal use and may result in writing an invalid PNG file. See -zlib.h for more information on what these mean. - - #include zlib.h - png_set_compression_strategy(png_ptr, - strategy); - - png_set_compression_window_bits(png_ptr, - window_bits); - - png_set_compression_method(png_ptr, method); - -This controls the size of the IDAT chunks (default 8192): - - png_set_compression_buffer_size(png_ptr, size); - -As of libpng version 1.5.4, additional APIs became -available to set these separately for non-IDAT -compressed chunks such as zTXt, iTXt, and iCCP: - - #include zlib.h - #if PNG_LIBPNG_VER >= 10504 - png_set_text_compression_level(png_ptr, level); - - png_set_text_compression_mem_level(png_ptr, level); - - png_set_text_compression_strategy(png_ptr, - strategy); - - png_set_text_compression_window_bits(png_ptr, - window_bits); - - png_set_text_compression_method(png_ptr, method); - #endif - -Controlling row filtering - -If you want to control whether libpng uses filtering or not, which -filters are used, and how it goes about picking row filters, you -can call one of these functions. The selection and configuration -of row filters can have a significant impact on the size and -encoding speed and a somewhat lesser impact on the decoding speed -of an image. Filtering is enabled by default for RGB and grayscale -images (with and without alpha), but not for paletted images nor -for any images with bit depths less than 8 bits/pixel. - -The 'method' parameter sets the main filtering method, which is -currently only '0' in the PNG 1.2 specification. The 'filters' -parameter sets which filter(s), if any, should be used for each -scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS -to turn filtering on and off, respectively. - -Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB, -PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise -ORed together with '|' to specify one or more filters to use. -These filters are described in more detail in the PNG specification. -If you intend to change the filter type during the course of writing -the image, you should start with flags set for all of the filters -you intend to use so that libpng can initialize its internal -structures appropriately for all of the filter types. (Note that this -means the first row must always be adaptively filtered, because libpng -currently does not allocate the filter buffers until png_write_row() -is called for the first time.) - - filters = PNG_FILTER_NONE | PNG_FILTER_SUB - PNG_FILTER_UP | PNG_FILTER_AVG | - PNG_FILTER_PAETH | PNG_ALL_FILTERS; - - png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, - filters); - The second parameter can also be - PNG_INTRAPIXEL_DIFFERENCING if you are - writing a PNG to be embedded in a MNG - datastream. This parameter must be the - same as the value of filter_method used - in png_set_IHDR(). - -It is also possible to influence how libpng chooses from among the -available filters. This is done in one or both of two ways - by -telling it how important it is to keep the same filter for successive -rows, and by telling it the relative computational costs of the filters. - - double weights[3] = {1.5, 1.3, 1.1}, - costs[PNG_FILTER_VALUE_LAST] = - {1.0, 1.3, 1.3, 1.5, 1.7}; - - png_set_filter_heuristics(png_ptr, - PNG_FILTER_HEURISTIC_WEIGHTED, 3, - weights, costs); - -The weights are multiplying factors that indicate to libpng that the -row filter should be the same for successive rows unless another row filter -is that many times better than the previous filter. In the above example, -if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a -"sum of absolute differences" 1.5 x 1.3 times higher than other filters -and still be chosen, while the NONE filter could have a sum 1.1 times -higher than other filters and still be chosen. Unspecified weights are -taken to be 1.0, and the specified weights should probably be declining -like those above in order to emphasize recent filters over older filters. - -The filter costs specify for each filter type a relative decoding cost -to be considered when selecting row filters. This means that filters -with higher costs are less likely to be chosen over filters with lower -costs, unless their "sum of absolute differences" is that much smaller. -The costs do not necessarily reflect the exact computational speeds of -the various filters, since this would unduly influence the final image -size. - -Note that the numbers above were invented purely for this example and -are given only to help explain the function usage. Little testing has -been done to find optimum values for either the costs or the weights. - -Requesting debug printout - -The macro definition PNG_DEBUG can be used to request debugging -printout. Set it to an integer value in the range 0 to 3. Higher -numbers result in increasing amounts of debugging information. The -information is printed to the "stderr" file, unless another file -name is specified in the PNG_DEBUG_FILE macro definition. - -When PNG_DEBUG > 0, the following functions (macros) become available: - - png_debug(level, message) - png_debug1(level, message, p1) - png_debug2(level, message, p1, p2) - -in which "level" is compared to PNG_DEBUG to decide whether to print -the message, "message" is the formatted string to be printed, -and p1 and p2 are parameters that are to be embedded in the string -according to printf-style formatting directives. For example, - - png_debug1(2, "foo=%d", foo); - -is expanded to - - if (PNG_DEBUG > 2) - fprintf(PNG_DEBUG_FILE, "foo=%d\n", foo); - -When PNG_DEBUG is defined but is zero, the macros aren't defined, but you -can still use PNG_DEBUG to control your own debugging: - - #ifdef PNG_DEBUG - fprintf(stderr, ... - #endif - -When PNG_DEBUG = 1, the macros are defined, but only png_debug statements -having level = 0 will be printed. There aren't any such statements in -this version of libpng, but if you insert some they will be printed. - -VII. MNG support - -The MNG specification (available at http://www.libpng.org/pub/mng) allows -certain extensions to PNG for PNG images that are embedded in MNG datastreams. -Libpng can support some of these extensions. To enable them, use the -png_permit_mng_features() function: - - feature_set = png_permit_mng_features(png_ptr, mask) - - mask is a png_uint_32 containing the bitwise OR of the - features you want to enable. These include - PNG_FLAG_MNG_EMPTY_PLTE - PNG_FLAG_MNG_FILTER_64 - PNG_ALL_MNG_FEATURES - - feature_set is a png_uint_32 that is the bitwise AND of - your mask with the set of MNG features that is - supported by the version of libpng that you are using. - -It is an error to use this function when reading or writing a standalone -PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped -in a MNG datastream. As a minimum, it must have the MNG 8-byte signature -and the MHDR and MEND chunks. Libpng does not provide support for these -or any other MNG chunks; your application must provide its own support for -them. You may wish to consider using libmng (available at -http://www.libmng.com) instead. - -VIII. Changes to Libpng from version 0.88 - -It should be noted that versions of libpng later than 0.96 are not -distributed by the original libpng author, Guy Schalnat, nor by -Andreas Dilger, who had taken over from Guy during 1996 and 1997, and -distributed versions 0.89 through 0.96, but rather by another member -of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are -still alive and well, but they have moved on to other things. - -The old libpng functions png_read_init(), png_write_init(), -png_info_init(), png_read_destroy(), and png_write_destroy() have been -moved to PNG_INTERNAL in version 0.95 to discourage their use. These -functions will be removed from libpng version 1.4.0. - -The preferred method of creating and initializing the libpng structures is -via the png_create_read_struct(), png_create_write_struct(), and -png_create_info_struct() because they isolate the size of the structures -from the application, allow version error checking, and also allow the -use of custom error handling routines during the initialization, which -the old functions do not. The functions png_read_destroy() and -png_write_destroy() do not actually free the memory that libpng -allocated for these structs, but just reset the data structures, so they -can be used instead of png_destroy_read_struct() and -png_destroy_write_struct() if you feel there is too much system overhead -allocating and freeing the png_struct for each image read. - -Setting the error callbacks via png_set_message_fn() before -png_read_init() as was suggested in libpng-0.88 is no longer supported -because this caused applications that do not use custom error functions -to fail if the png_ptr was not initialized to zero. It is still possible -to set the error callbacks AFTER png_read_init(), or to change them with -png_set_error_fn(), which is essentially the same function, but with a new -name to force compilation errors with applications that try to use the old -method. - -Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6; -however, iTXt support was not enabled by default. - -Starting with version 1.0.7, you can find out which version of the library -you are using at run-time: - - png_uint_32 libpng_vn = png_access_version_number(); - -The number libpng_vn is constructed from the major version, minor -version with leading zero, and release number with leading zero, -(e.g., libpng_vn for version 1.0.7 is 10007). - -Note that this function does not take a png_ptr, so you can call it -before you've created one. - -You can also check which version of png.h you used when compiling your -application: - - png_uint_32 application_vn = PNG_LIBPNG_VER; - -IX. Changes to Libpng from version 1.0.x to 1.2.x - -Support for user memory management was enabled by default. To -accomplish this, the functions png_create_read_struct_2(), -png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(), -png_malloc_default(), and png_free_default() were added. - -Support for the iTXt chunk has been enabled by default as of -version 1.2.41. - -Support for certain MNG features was enabled. - -Support for numbered error messages was added. However, we never got -around to actually numbering the error messages. The function -png_set_strip_error_numbers() was added (Note: the prototype for this -function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE -builds of libpng-1.2.15. It was restored in libpng-1.2.36). - -The png_malloc_warn() function was added at libpng-1.2.3. This issues -a png_warning and returns NULL instead of aborting when it fails to -acquire the requested memory allocation. - -Support for setting user limits on image width and height was enabled -by default. The functions png_set_user_limits(), png_get_user_width_max(), -and png_get_user_height_max() were added at libpng-1.2.6. - -The png_set_add_alpha() function was added at libpng-1.2.7. - -The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9. -Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the -tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is -deprecated. - -A number of macro definitions in support of runtime selection of -assembler code features (especially Intel MMX code support) were -added at libpng-1.2.0: - - PNG_ASM_FLAG_MMX_SUPPORT_COMPILED - PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU - PNG_ASM_FLAG_MMX_READ_COMBINE_ROW - PNG_ASM_FLAG_MMX_READ_INTERLACE - PNG_ASM_FLAG_MMX_READ_FILTER_SUB - PNG_ASM_FLAG_MMX_READ_FILTER_UP - PNG_ASM_FLAG_MMX_READ_FILTER_AVG - PNG_ASM_FLAG_MMX_READ_FILTER_PAETH - PNG_ASM_FLAGS_INITIALIZED - PNG_MMX_READ_FLAGS - PNG_MMX_FLAGS - PNG_MMX_WRITE_FLAGS - PNG_MMX_FLAGS - -We added the following functions in support of runtime -selection of assembler code features: - - png_get_mmx_flagmask() - png_set_mmx_thresholds() - png_get_asm_flags() - png_get_mmx_bitdepth_threshold() - png_get_mmx_rowbytes_threshold() - png_set_asm_flags() - -We replaced all of these functions with simple stubs in libpng-1.2.20, -when the Intel assembler code was removed due to a licensing issue. - -These macros are deprecated: - - PNG_READ_TRANSFORMS_NOT_SUPPORTED - PNG_PROGRESSIVE_READ_NOT_SUPPORTED - PNG_NO_SEQUENTIAL_READ_SUPPORTED - PNG_WRITE_TRANSFORMS_NOT_SUPPORTED - PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED - PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED - -They have been replaced, respectively, by: - - PNG_NO_READ_TRANSFORMS - PNG_NO_PROGRESSIVE_READ - PNG_NO_SEQUENTIAL_READ - PNG_NO_WRITE_TRANSFORMS - PNG_NO_READ_ANCILLARY_CHUNKS - PNG_NO_WRITE_ANCILLARY_CHUNKS - -PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been -deprecated since libpng-1.0.16 and libpng-1.2.6. - -The function - png_check_sig(sig, num) -was replaced with - !png_sig_cmp(sig, 0, num) -It has been deprecated since libpng-0.90. - -The function - png_set_gray_1_2_4_to_8() -which also expands tRNS to alpha was replaced with - png_set_expand_gray_1_2_4_to_8() -which does not. It has been deprecated since libpng-1.0.18 and 1.2.9. - -X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x - -Private libpng prototypes and macro definitions were moved from -png.h and pngconf.h into a new pngpriv.h header file. - -Functions png_set_benign_errors(), png_benign_error(), and -png_chunk_benign_error() were added. - -Support for setting the maximum amount of memory that the application -will allocate for reading chunks was added, as a security measure. -The functions png_set_chunk_cache_max() and png_get_chunk_cache_max() -were added to the library. - -We implemented support for I/O states by adding png_ptr member io_state -and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c - -We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level -input transforms. - -Checking for and reporting of errors in the IHDR chunk is more thorough. - -Support for global arrays was removed, to improve thread safety. - -Some obsolete/deprecated macros and functions have been removed. - -Typecasted NULL definitions such as - #define png_voidp_NULL (png_voidp)NULL -were eliminated. If you used these in your application, just use -NULL instead. - -The png_struct and info_struct members "trans" and "trans_values" were -changed to "trans_alpha" and "trans_color", respectively. - -The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles -were removed. - -The PNG_1_0_X and PNG_1_2_X macros were eliminated. - -The PNG_LEGACY_SUPPORTED macro was eliminated. - -Many WIN32_WCE #ifdefs were removed. - -The functions png_read_init(info_ptr), png_write_init(info_ptr), -png_info_init(info_ptr), png_read_destroy(), and png_write_destroy() -have been removed. They have been deprecated since libpng-0.95. - -The png_permit_empty_plte() was removed. It has been deprecated -since libpng-1.0.9. Use png_permit_mng_features() instead. - -We removed the obsolete stub functions png_get_mmx_flagmask(), -png_set_mmx_thresholds(), png_get_asm_flags(), -png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(), -png_set_asm_flags(), and png_mmx_supported() - -We removed the obsolete png_check_sig(), png_memcpy_check(), and -png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(), -and memset(), respectively. - -The function png_set_gray_1_2_4_to_8() was removed. It has been -deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with -png_set_expand_gray_1_2_4_to_8() because the former function also -expanded any tRNS chunk to an alpha channel. - -Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32 -were added and are used by default instead of the corresponding -functions. Unfortunately, -from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the -function) incorrectly returned a value of type png_uint_32. - -We changed the prototype for png_malloc() from - png_malloc(png_structp png_ptr, png_uint_32 size) -to - png_malloc(png_structp png_ptr, png_alloc_size_t size) - -This also applies to the prototype for the user replacement malloc_fn(). - -The png_calloc() function was added and is used in place of -of "png_malloc(); memset();" except in the case in png_read_png() -where the array consists of pointers; in this case a "for" loop is used -after the png_malloc() to set the pointers to NULL, to give robust. -behavior in case the application runs out of memory part-way through -the process. - -We changed the prototypes of png_get_compression_buffer_size() and -png_set_compression_buffer_size() to work with png_size_t instead of -png_uint_32. - -Support for numbered error messages was removed by default, since we -never got around to actually numbering the error messages. The function -png_set_strip_error_numbers() was removed from the library by default. - -The png_zalloc() and png_zfree() functions are no longer exported. -The png_zalloc() function no longer zeroes out the memory that it -allocates. Applications that called png_zalloc(png_ptr, number, size) -can call png_calloc(png_ptr, number*size) instead, and can call -png_free() instead of png_zfree(). - -Support for dithering was disabled by default in libpng-1.4.0, because -it has not been well tested and doesn't actually "dither". -The code was not -removed, however, and could be enabled by building libpng with -PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support -was re-enabled, but the function was renamed png_set_quantize() to -reflect more accurately what it actually does. At the same time, -the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to -PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED -was renamed to PNG_READ_QUANTIZE_SUPPORTED. - -We removed the trailing '.' from the warning and error messages. - -XI. Changes to Libpng from version 1.4.x to 1.5.x - -From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the -function) incorrectly returned a value of type png_uint_32. -The incorrect macro was removed from libpng-1.4.5. - -Checking for invalid palette index on write was added at libpng -1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues -a benign error. This is enabled by default because this condition is an -error according to the PNG specification, Clause 11.3.2, but the error can -be ignored in each png_ptr with - - png_set_check_for_invalid_index(png_ptr, allowed); - - allowed - one of - 0: disable benign error (accept the - invalid data without warning). - 1: enable benign error (treat the - invalid data as an error or a - warning). - -If the error is ignored, or if png_benign_error() treats it as a warning, -any invalid pixels are decoded as opaque black by the decoder and written -as-is by the encoder. - -Retrieving the maximum palette index found was added at libpng-1.5.15. -This statement must appear after png_read_png() or png_read_image() while -reading, and after png_write_png() or png_write_image() while writing. - - int max_palette = png_get_palette_max(png_ptr, info_ptr); - -This will return the maximum palette index found in the image, or "-1" if -the palette was not checked, or "0" if no palette was found. Note that this -does not account for any palette index used by ancillary chunks such as the -bKGD chunk; you must check those separately to determine the maximum -palette index actually used. - -There are no substantial API changes between the non-deprecated parts of -the 1.4.5 API and the 1.5.0 API; however, the ability to directly access -members of the main libpng control structures, png_struct and png_info, -deprecated in earlier versions of libpng, has been completely removed from -libpng 1.5. - -We no longer include zlib.h in png.h. The include statement has been moved -to pngstruct.h, where it is not accessible by applications. Applications that -need access to information in zlib.h will need to add the '#include "zlib.h"' -directive. It does not matter whether this is placed prior to or after -the '"#include png.h"' directive. - -The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used -and were removed. - -We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp() -macros into a private header file (pngpriv.h) that is not accessible to -applications. - -In png_get_iCCP, the type of "profile" was changed from png_charpp -to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. - -There are changes of form in png.h, including new and changed macros to -declare parts of the API. Some API functions with arguments that are -pointers to data not modified within the function have been corrected to -declare these arguments with PNG_CONST. - -Much of the internal use of C macros to control the library build has also -changed and some of this is visible in the exported header files, in -particular the use of macros to control data and API elements visible -during application compilation may require significant revision to -application code. (It is extremely rare for an application to do this.) - -Any program that compiled against libpng 1.4 and did not use deprecated -features or access internal library structures should compile and work -against libpng 1.5, except for the change in the prototype for -png_get_iCCP() and png_set_iCCP() API functions mentioned above. - -libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of -interlaced images. The macros return the number of rows and columns in -each pass and information that can be used to de-interlace and (if -absolutely necessary) interlace an image. - -libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls -the application-provided png_longjmp_ptr on the internal, but application -initialized, longjmp buffer. It is provided as a convenience to avoid -the need to use the png_jmpbuf macro, which had the unnecessary side -effect of resetting the internal png_longjmp_ptr value. - -libpng 1.5.0 includes a complete fixed point API. By default this is -present along with the corresponding floating point API. In general the -fixed point API is faster and smaller than the floating point one because -the PNG file format used fixed point, not floating point. This applies -even if the library uses floating point in internal calculations. A new -macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library -uses floating point arithmetic (the default) or fixed point arithmetic -internally for performance critical calculations such as gamma correction. -In some cases, the gamma calculations may produce slightly different -results. This has changed the results in png_rgb_to_gray and in alpha -composition (png_set_background for example). This applies even if the -original image was already linear (gamma == 1.0) and, therefore, it is -not necessary to linearize the image. This is because libpng has *not* -been changed to optimize that case correctly, yet. - -Fixed point support for the sCAL chunk comes with an important caveat; -the sCAL specification uses a decimal encoding of floating point values -and the accuracy of PNG fixed point values is insufficient for -representation of these values. Consequently a "string" API -(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading -arbitrary sCAL chunks in the absence of either the floating point API or -internal floating point calculations. Starting with libpng-1.5.0, both -of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior -to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED -being defined and PNG_FLOATING_POINT_SUPPORTED not being defined. - -Applications no longer need to include the optional distribution header -file pngusr.h or define the corresponding macros during application -build in order to see the correct variant of the libpng API. From 1.5.0 -application code can check for the corresponding _SUPPORTED macro: - -#ifdef PNG_INCH_CONVERSIONS_SUPPORTED - /* code that uses the inch conversion APIs. */ -#endif - -This macro will only be defined if the inch conversion functions have been -compiled into libpng. The full set of macros, and whether or not support -has been compiled in, are available in the header file pnglibconf.h. -This header file is specific to the libpng build. Notice that prior to -1.5.0 the _SUPPORTED macros would always have the default definition unless -reset by pngusr.h or by explicit settings on the compiler command line. -These settings may produce compiler warnings or errors in 1.5.0 because -of macro redefinition. - -Applications can now choose whether to use these macros or to call the -corresponding function by defining PNG_USE_READ_MACROS or -PNG_NO_USE_READ_MACROS before including png.h. Notice that this is -only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0 -will lead to a link failure. - -Prior to libpng-1.5.4, the zlib compressor used the same set of parameters -when compressing the IDAT data and textual data such as zTXt and iCCP. -In libpng-1.5.4 we reinitialized the zlib stream for each type of data. -We added five png_set_text_*() functions for setting the parameters to -use with textual data. - -Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -option was off by default, and slightly inaccurate scaling occurred. -This option can no longer be turned off, and the choice of accurate -or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8() -API for accurate scaling or the old png_set_strip_16_to_8() API for simple -chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8 -macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two -png_set_*_16_to_8() functions separately. - -Prior to libpng-1.5.4, the png_set_user_limits() function could only be -used to reduce the width and height limits from the value of -PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said -that it could be used to override them. Now this function will reduce or -increase the limits. - -Starting in libpng-1.5.10, the user limits can be set en masse with the -configuration option PNG_SAFE_LIMITS_SUPPORTED. If this option is enabled, -a set of "safe" limits is applied in pngpriv.h. These can be overridden by -application calls to png_set_user_limits(), png_set_user_chunk_cache_max(), -and/or png_set_user_malloc_max() that increase or decrease the limits. Also, -in libpng-1.5.10 the default width and height limits were increased -from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the -limits are now - default safe - png_user_width_max 0x7fffffff 1,000,000 - png_user_height_max 0x7fffffff 1,000,000 - png_user_chunk_cache_max 0 (unlimited) 128 - png_user_chunk_malloc_max 0 (unlimited) 8,000,000 - -The png_set_option() function (and the "options" member of the png struct) was -added to libpng-1.5.15. - -The library now supports a complete fixed point implementation and can -thus be used on systems that have no floating point support or very -limited or slow support. Previously gamma correction, an essential part -of complete PNG support, required reasonably fast floating point. - -As part of this the choice of internal implementation has been made -independent of the choice of fixed versus floating point APIs and all the -missing fixed point APIs have been implemented. - -The exact mechanism used to control attributes of API functions has -changed, as described in the INSTALL file. - -A new test program, pngvalid, is provided in addition to pngtest. -pngvalid validates the arithmetic accuracy of the gamma correction -calculations and includes a number of validations of the file format. -A subset of the full range of tests is run when "make check" is done -(in the 'configure' build.) pngvalid also allows total allocated memory -usage to be evaluated and performs additional memory overwrite validation. - -Many changes to individual feature macros have been made. The following -are the changes most likely to be noticed by library builders who -configure libpng: - -1) All feature macros now have consistent naming: - -#define PNG_NO_feature turns the feature off -#define PNG_feature_SUPPORTED turns the feature on - -pnglibconf.h contains one line for each feature macro which is either: - -#define PNG_feature_SUPPORTED - -if the feature is supported or: - -/*#undef PNG_feature_SUPPORTED*/ - -if it is not. Library code consistently checks for the 'SUPPORTED' macro. -It does not, and libpng applications should not, check for the 'NO' macro -which will not normally be defined even if the feature is not supported. -The 'NO' macros are only used internally for setting or not setting the -corresponding 'SUPPORTED' macros. - -Compatibility with the old names is provided as follows: - -PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED - -And the following definitions disable the corresponding feature: - -PNG_SETJMP_NOT_SUPPORTED disables SETJMP -PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS -PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV -PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS -PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS -PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS - -Library builders should remove use of the above, inconsistent, names. - -2) Warning and error message formatting was previously conditional on -the STDIO feature. The library has been changed to use the -CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled -the library no longer uses the printf(3) functions, even though the -default read/write implementations use (FILE) style stdio.h functions. - -3) Three feature macros now control the fixed/floating point decisions: - -PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs - -PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in -practice these are normally required internally anyway (because the PNG -file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT -merely stops the function from being exported. - -PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating -point implementation or the fixed point one. Typically the fixed point -implementation is larger and slower than the floating point implementation -on a system that supports floating point; however, it may be faster on a -system which lacks floating point hardware and therefore uses a software -emulation. - -4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the -functions to read and write ints to be disabled independently of -PNG_USE_READ_MACROS, which allows libpng to be built with the functions -even though the default is to use the macros - this allows applications -to choose at app buildtime whether or not to use macros (previously -impossible because the functions weren't in the default build.) - -XII. Changes to Libpng from version 1.5.x to 1.6.x - -A "simplified API" has been added (see documentation in png.h and a simple -example in contrib/examples/pngtopng.c). The new publicly visible API -includes the following: - - macros: - PNG_FORMAT_* - PNG_IMAGE_* - structures: - png_control - png_image - read functions - png_image_begin_read_from_file() - png_image_begin_read_from_stdio() - png_image_begin_read_from_memory() - png_image_finish_read() - png_image_free() - write functions - png_image_write_to_file() - png_image_write_to_stdio() - -Starting with libpng-1.6.0, you can configure libpng to prefix all exported -symbols, using the PNG_PREFIX macro. - -We no longer include string.h in png.h. The include statement has been moved -to pngpriv.h, where it is not accessible by applications. Applications that -need access to information in string.h must add an '#include ' -directive. It does not matter whether this is placed prior to or after -the '#include "png.h"' directive. - -The following API are now DEPRECATED: - png_info_init_3() - png_convert_to_rfc1123() which has been replaced - with png_convert_to_rfc1123_buffer() - png_malloc_default() - png_free_default() - png_reset_zstream() - -The following have been removed: - png_get_io_chunk_name(), which has been replaced - with png_get_io_chunk_type(). The new - function returns a 32-bit integer instead of - a string. - The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and - png_memset() macros are no longer used in the libpng sources and - have been removed. These had already been made invisible to applications - (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0. - -The signatures of many exported functions were changed, such that - png_structp became png_structrp or png_const_structrp - png_infop became png_inforp or png_const_inforp -where "rp" indicates a "restricted pointer". - -Error detection in some chunks has improved; in particular the iCCP chunk -reader now does pretty complete validation of the basic format. Some bad -profiles that were previously accepted are now accepted with a warning or -rejected, depending upon the png_set_benign_errors() setting, in particular the -very old broken Microsoft/HP 3144-byte sRGB profile. Starting with -libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by -means of - - #ifdef PNG_SKIP_sRGB_CHECK_PROFILE - png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE, - PNG_OPTION_ON); - #endif - -It's not a good idea to do this if you are using the "simplified API", -which needs to be able to recognize an sRGB profile conveyed via the iCCP -chunk. - -The PNG spec requirement that only grayscale profiles may appear in images -with color type 0 or 4 and that even if the image only contains gray pixels, -only RGB profiles may appear in images with color type 2, 3, or 6, is now -enforced. The sRGB chunk is allowed to appear in images with any color type -and is interpreted by libpng to convey a one-tracer-curve profile or a -three-tracer-curve profile as appropriate. - -Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained -an empty language field or an empty translated keyword. Both of these -are allowed by the PNG specification, so these warnings are no longer issued. - -The library now issues an error if the application attempts to set a -transform after it calls png_read_update_info() or if it attempts to call -both png_read_update_info() and png_start_read_image() or to call either -of them more than once. - -The default condition for benign_errors is now to treat benign errors as -warnings while reading and as errors while writing. - -The library now issues a warning if both background processing and RGB to -gray are used when gamma correction happens. As with previous versions of -the library the results are numerically very incorrect in this case. - -There are some minor arithmetic changes in some transforms such as -png_set_background(), that might be detected by certain regression tests. - -Unknown chunk handling has been improved internally, without any API change. -This adds more correct option control of the unknown handling, corrects -a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes -it possible to skip IDAT chunks in the sequential reader. - -The machine-generated configure files are no longer included in branches -libpng16 and later of the GIT repository. They continue to be included -in the tarball releases, however. - -Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT -stream to set the size of the sliding window for reading instead of using the -default 32-kbyte sliding window size. It was discovered that there are -hundreds of PNG files in the wild that have incorrect CMF bytes that caused -zlib to issue the "invalid distance too far back" error and reject the file. -Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions, -provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes -and using a 32-kbyte sliding window), by using - - png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW, - PNG_OPTION_ON); - -and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while -optimizing the CMF bytes in its IDAT chunk correctly. - -Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong -length, which resulted in PNG files that cannot be read beyond the bad iTXt -chunk. This error was fixed in libpng-1.6.3, and a tool (called -contrib/tools/png-fix-itxt) has been added to the libpng distribution. - -XIII. Detecting libpng - -The png_get_io_ptr() function has been present since libpng-0.88, has never -changed, and is unaffected by conditional compilation macros. It is the -best choice for use in configure scripts for detecting the presence of any -libpng version since 0.88. In an autoconf "configure.in" you could use - - AC_CHECK_LIB(png, png_get_io_ptr, ... - -XV. Source code repository - -Since about February 2009, version 1.2.34, libpng has been under "git" source -control. The git repository was built from old libpng-x.y.z.tar.gz files -going back to version 0.70. You can access the git repository (read only) -at - - git://git.code.sf.net/p/libpng/code - -or you can browse it with a web browser by selecting the "code" button at - - https://sourceforge.net/projects/libpng - -Patches can be sent to glennrp at users.sourceforge.net or to -png-mng-implement at lists.sourceforge.net or you can upload them to -the libpng bug tracker at - - http://libpng.sourceforge.net - -We also accept patches built from the tar or zip distributions, and -simple verbal discriptions of bug fixes, reported either to the -SourceForge bug tracker, to the png-mng-implement at lists.sf.net -mailing list, or directly to glennrp. - -XV. Coding style - -Our coding style is similar to the "Allman" style -(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly -braces on separate lines: - - if (condition) - { - action; - } - - else if (another condition) - { - another action; - } - -The braces can be omitted from simple one-line actions: - - if (condition) - return (0); - -We use 3-space indentation, except for continued statements which -are usually indented the same as the first line of the statement -plus four more spaces. - -For macro definitions we use 2-space indentation, always leaving the "#" -in the first column. - - #ifndef PNG_NO_FEATURE - # ifndef PNG_FEATURE_SUPPORTED - # define PNG_FEATURE_SUPPORTED - # endif - #endif - -Comments appear with the leading "/*" at the same indentation as -the statement that follows the comment: - - /* Single-line comment */ - statement; - - /* This is a multiple-line - * comment. - */ - statement; - -Very short comments can be placed after the end of the statement -to which they pertain: - - statement; /* comment */ - -We don't use C++ style ("//") comments. We have, however, -used them in the past in some now-abandoned MMX assembler -code. - -Functions and their curly braces are not indented, and -exported functions are marked with PNGAPI: - - /* This is a public function that is visible to - * application programmers. It does thus-and-so. - */ - void PNGAPI - png_exported_function(png_ptr, png_info, foo) - { - body; - } - -The return type and decorations are placed on a separate line -ahead of the function name, as illustrated above. - -The prototypes for all exported functions appear in png.h, -above the comment that says - - /* Maintainer: Put new public prototypes here ... */ - -We mark all non-exported functions with "/* PRIVATE */"": - - void /* PRIVATE */ - png_non_exported_function(png_ptr, png_info, foo) - { - body; - } - -The prototypes for non-exported functions (except for those in -pngtest) appear in -pngpriv.h -above the comment that says - - /* Maintainer: Put new private prototypes here ^ */ - -We put a space after the "sizeof" operator and we omit the -optional parentheses around its argument when the argument -is an expression, not a type name, and we always enclose the -sizeof operator, with its argument, in parentheses: - - (sizeof (png_uint_32)) - (sizeof array) - -Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as -though it were a function. - -To avoid polluting the global namespace, the names of all exported -functions and variables begin with "png_", and all publicly visible C -preprocessor macros begin with "PNG". We request that applications that -use libpng *not* begin any of their own symbols with either of these strings. - -We put a space after each comma and after each semicolon -in "for" statements, and we put spaces before and after each -C binary operator and after "for" or "while", and before -"?". We don't put a space between a typecast and the expression -being cast, nor do we put one between a function name and the -left parenthesis that follows it: - - for (i = 2; i > 0; --i) - y[i] = a(x) + (int)b; - -We prefer #ifdef and #ifndef to #if defined() and #if !defined() -when there is only one macro being tested. We always use parentheses -with "defined". - -We prefer to express integers that are used as bit masks in hex format, -with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100). - -We prefer to use underscores in variable names rather than camelCase, except -for a few type names that we inherit from zlib.h. - -We prefer "if (something != 0)" and "if (something == 0)" -over "if (something)" and if "(!something)", respectively. - -We do not use the TAB character for indentation in the C sources. - -Lines do not exceed 80 characters. - -Other rules can be inferred by inspecting the libpng source. - -XVI. Y2K Compliance in libpng - -June 12, 2014 - -Since the PNG Development group is an ad-hoc body, we can't make -an official declaration. - -This is your unofficial assurance that libpng from version 0.71 and -upward through 1.6.12 are Y2K compliant. It is my belief that earlier -versions were also Y2K compliant. - -Libpng only has two year fields. One is a 2-byte unsigned integer -that will hold years up to 65535. The other, which is deprecated, -holds the date in text format, and will hold years up to 9999. - -The integer is - "png_uint_16 year" in png_time_struct. - -The string is - "char time_buffer[29]" in png_struct. This is no longer used -in libpng-1.6.x and will be removed from libpng-1.7.0. - -There are seven time-related functions: - - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) - png_convert_from_struct_tm() in pngwrite.c, called - in pngwrite.c - png_convert_from_time_t() in pngwrite.c - png_get_tIME() in pngget.c - png_handle_tIME() in pngrutil.c, called in pngread.c - png_set_tIME() in pngset.c - png_write_tIME() in pngwutil.c, called in pngwrite.c - -All appear to handle dates properly in a Y2K environment. The -png_convert_from_time_t() function calls gmtime() to convert from system -clock time, which returns (year - 1900), which we properly convert to -the full 4-digit year. There is a possibility that applications using -libpng are not passing 4-digit years into the png_convert_to_rfc_1123() -function, or that they are incorrectly passing only a 2-digit year -instead of "year - 1900" into the png_convert_from_struct_tm() function, -but this is not under our control. The libpng documentation has always -stated that it works with 4-digit years, and the APIs have been -documented as such. - -The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned -integer to hold the year, and can hold years as large as 65535. - -zlib, upon which libpng depends, is also Y2K compliant. It contains -no date-related code. - - - Glenn Randers-Pehrson - libpng maintainer - PNG Development Group diff --git a/png/libpng.3 b/png/libpng.3 deleted file mode 100755 index 6ac1b6a..0000000 --- a/png/libpng.3 +++ /dev/null @@ -1,6208 +0,0 @@ -.TH LIBPNG 3 "June 12, 2014" -.SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.6.12 -.SH SYNOPSIS -\fB -#include \fP - -\fBpng_uint_32 png_access_version_number \fI(void\fP\fB);\fP - -\fBvoid png_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP - -\fBvoid png_build_grayscale_palette (int \fP\fIbit_depth\fP\fB, png_colorp \fIpalette\fP\fB);\fP - -\fBpng_voidp png_calloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP - -\fBvoid png_chunk_benign_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP - -\fBvoid png_chunk_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP - -\fBvoid png_chunk_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP - -\fBvoid png_convert_from_struct_tm (png_timep \fP\fIptime\fP\fB, struct tm FAR * \fIttime\fP\fB);\fP - -\fBvoid png_convert_from_time_t (png_timep \fP\fIptime\fP\fB, time_t \fIttime\fP\fB);\fP - -\fBpng_charp png_convert_to_rfc1123 (png_structp \fP\fIpng_ptr\fP\fB, png_timep \fIptime\fP\fB);\fP - -\fBpng_infop png_create_info_struct (png_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP - -\fBpng_structp png_create_read_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP - -\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP - -\fBpng_structp png_create_write_struct_2 (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fP\fIwarn_fn\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP - -\fBvoid png_data_freer (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIfreer\fP\fB, png_uint_32 \fImask)\fP\fB);\fP - -\fBvoid png_destroy_info_struct (png_structp \fP\fIpng_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP - -\fBvoid png_destroy_read_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fP\fIinfo_ptr_ptr\fP\fB, png_infopp \fIend_info_ptr_ptr\fP\fB);\fP - -\fBvoid png_destroy_write_struct (png_structpp \fP\fIpng_ptr_ptr\fP\fB, png_infopp \fIinfo_ptr_ptr\fP\fB);\fP - -\fBvoid png_err (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_error (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fIerror\fP\fB);\fP - -\fBvoid png_free (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP - -\fBvoid png_free_chunk_list (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_free_default (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fIptr\fP\fB);\fP - -\fBvoid png_free_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fInum\fP\fB);\fP - -\fBpng_byte png_get_bit_depth (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_bKGD (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fI*background\fP\fB);\fP - -\fBpng_byte png_get_channels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_cHRM (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*white_x\fP\fB, double \fP\fI*white_y\fP\fB, double \fP\fI*red_x\fP\fB, double \fP\fI*red_y\fP\fB, double \fP\fI*green_x\fP\fB, double \fP\fI*green_y\fP\fB, double \fP\fI*blue_x\fP\fB, double \fI*blue_y\fP\fB);\fP - -\fBpng_uint_32 png_get_cHRM_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*white_x\fP\fB, png_uint_32 \fP\fI*white_y\fP\fB, png_uint_32 \fP\fI*red_x\fP\fB, png_uint_32 \fP\fI*red_y\fP\fB, png_uint_32 \fP\fI*green_x\fP\fB, png_uint_32 \fP\fI*green_y\fP\fB, png_uint_32 \fP\fI*blue_x\fP\fB, png_uint_32 \fI*blue_y\fP\fB);\fP - -\fBpng_uint_32 png_get_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fP\fI*red_X\fP\fB, double \fP\fI*red_Y\fP\fB, double \fP\fI*red_Z\fP\fB, double \fP\fI*green_X\fP\fB, double \fP\fI*green_Y\fP\fB, double \fP\fI*green_Z\fP\fB, double \fP\fI*blue_X\fP\fB, double \fP\fI*blue_Y\fP\fB, double \fI*blue_Z\fP\fB);\fP - -\fBpng_uint_32 png_get_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fI*int_red_X\fP\fB, png_fixed_point \fP\fI*int_red_Y\fP\fB, png_fixed_point \fP\fI*int_red_Z\fP\fB, png_fixed_point \fP\fI*int_green_X\fP\fB, png_fixed_point \fP\fI*int_green_Y\fP\fB, png_fixed_point \fP\fI*int_green_Z\fP\fB, png_fixed_point \fP\fI*int_blue_X\fP\fB, png_fixed_point \fP\fI*int_blue_Y\fP\fB, png_fixed_point \fI*int_blue_Z\fP\fB);\fP - -\fBpng_uint_32 png_get_chunk_cache_max (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_alloc_size_t png_get_chunk_malloc_max (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_byte png_get_color_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_byte png_get_compression_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_byte png_get_copyright (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_current_row_number \fI(png_const_structp\fP\fB);\fP - -\fBpng_byte png_get_current_pass_number \fI(png_const_structp\fP\fB);\fP - -\fBpng_voidp png_get_error_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_byte png_get_filter_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_gAMA (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, double \fI*file_gamma\fP\fB);\fP - -\fBpng_uint_32 png_get_gAMA_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fI*int_file_gamma\fP\fB);\fP - -\fBpng_byte png_get_header_ver (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_byte png_get_header_version (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_hIST (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fI*hist\fP\fB);\fP - -\fBpng_uint_32 png_get_iCCP (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charpp \fP\fIname\fP\fB, int \fP\fI*compression_type\fP\fB, png_bytepp \fP\fIprofile\fP\fB, png_uint_32 \fI*proflen\fP\fB);\fP - -\fBpng_uint_32 png_get_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*width\fP\fB, png_uint_32 \fP\fI*height\fP\fB, int \fP\fI*bit_depth\fP\fB, int \fP\fI*color_type\fP\fB, int \fP\fI*interlace_type\fP\fB, int \fP\fI*compression_type\fP\fB, int \fI*filter_type\fP\fB);\fP - -\fBpng_uint_32 png_get_image_height (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_image_width (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_int_32 png_get_int_32 (png_bytep \fIbuf\fP\fB);\fP - -\fBpng_byte png_get_interlace_type (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_io_chunk_type (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_voidp png_get_io_ptr (png_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_io_state (png_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_byte png_get_libpng_ver (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_voidp png_get_mem_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_oFFs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*offset_x\fP\fB, png_uint_32 \fP\fI*offset_y\fP\fB, int \fI*unit_type\fP\fB);\fP - -\fBpng_uint_32 png_get_pCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fI*purpose\fP\fB, png_int_32 \fP\fI*X0\fP\fB, png_int_32 \fP\fI*X1\fP\fB, int \fP\fI*type\fP\fB, int \fP\fI*nparams\fP\fB, png_charp \fP\fI*units\fP\fB, png_charpp \fI*params\fP\fB);\fP - -\fBpng_uint_32 png_get_pHYs (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP - -\fBfloat png_get_pixel_aspect_ratio (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_pHYs_dpi (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fI*res_x\fP\fB, png_uint_32 \fP\fI*res_y\fP\fB, int \fI*unit_type\fP\fB);\fP - -\fBpng_fixed_point png_get_pixel_aspect_ratio_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_voidp png_get_progressive_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_PLTE (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fI*palette\fP\fB, int \fI*num_palette\fP\fB);\fP - -\fBpng_byte png_get_rgb_to_gray_status (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_rowbytes (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_bytepp png_get_rows (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_sBIT (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fI*sig_bit\fP\fB);\fP - -\fBvoid png_get_sCAL (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, double* \fP\fIwidth\fP\fB, double* \fIheight\fP\fB);\fP - -\fBvoid png_get_sCAL_fixed (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_fixed_pointp \fP\fIwidth\fP\fB, png_fixed_pointp \fIheight\fP\fB);\fP - -\fBvoid png_get_sCAL_s (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int* \fP\fIunit\fP\fB, png_charpp \fP\fIwidth\fP\fB, png_charpp \fIheight\fP\fB);\fP - -\fBpng_bytep png_get_signature (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_sPLT (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fI*splt_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_sRGB (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, int \fI*file_srgb_intent\fP\fB);\fP - -\fBpng_uint_32 png_get_text (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fI*text_ptr\fP\fB, int \fI*num_text\fP\fB);\fP - -\fBpng_uint_32 png_get_tIME (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fI*mod_time\fP\fB);\fP - -\fBpng_uint_32 png_get_tRNS (png_const_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fI*trans_alpha\fP\fB, int \fP\fI*num_trans\fP\fB, png_color_16p \fI*trans_color\fP\fB);\fP - -\fB/* This function is really an inline macro. \fI*/ - -\fBpng_uint_16 png_get_uint_16 (png_bytep \fIbuf\fP\fB);\fP - -\fBpng_uint_32 png_get_uint_31 (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIbuf\fP\fB);\fP - -\fB/* This function is really an inline macro. \fI*/ - -\fBpng_uint_32 png_get_uint_32 (png_bytep \fIbuf\fP\fB);\fP - -\fBpng_uint_32 png_get_unknown_chunks (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkpp \fIunknowns\fP\fB);\fP - -\fBpng_voidp png_get_user_chunk_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_user_height_max (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_voidp png_get_user_transform_ptr (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_user_width_max (png_const_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_valid (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIflag\fP\fB);\fP - -\fBfloat png_get_x_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_fixed_point png_get_x_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_int_32 png_get_x_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_int_32 png_get_x_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_x_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_x_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBfloat png_get_y_offset_inches (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_fixed_point png_get_y_offset_inches_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_int_32 png_get_y_offset_microns (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_int_32 png_get_y_offset_pixels (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_y_pixels_per_inch (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBpng_uint_32 png_get_y_pixels_per_meter (png_const_structp \fP\fIpng_ptr\fP\fB, png_const_infop \fIinfo_ptr\fP\fB);\fP - -\fBint png_handle_as_unknown (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIchunk_name\fP\fB);\fP - -\fBint png_image_begin_read_from_file (png_imagep \fP\fIimage\fP\fB, const char \fI*file_name\fP\fB);\fP - -\fBint png_image_begin_read_from_stdio (png_imagep \fP\fIimage\fP\fB, FILE* \fIfile\fP\fB);\fP - -\fBint, png_image_begin_read_from_memory (png_imagep \fP\fIimage\fP\fB, png_const_voidp \fP\fImemory\fP\fB, png_size_t \fIsize\fP\fB);\fP - -\fBint png_image_finish_read (png_imagep \fP\fIimage\fP\fB, png_colorp \fP\fIbackground\fP\fB, void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP - -\fBvoid png_image_free (png_imagep \fIimage\fP\fB);\fP - -\fBint png_image_write_to_file (png_imagep \fP\fIimage\fP\fB, const char \fP\fI*file\fP\fB, int \fP\fIconvert_to_8bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap\fP\fB);\fP - -\fBint png_image_write_to_stdio (png_imagep \fP\fIimage\fP\fB, FILE \fP\fI*file\fP\fB, int \fP\fIconvert_to_8_bit\fP\fB, const void \fP\fI*buffer\fP\fB, png_int_32 \fP\fIrow_stride\fP\fB, void \fI*colormap)\fP\fB);\fP - -\fBvoid png_info_init_3 (png_infopp \fP\fIinfo_ptr\fP\fB, png_size_t \fIpng_info_struct_size\fP\fB);\fP - -\fBvoid png_init_io (png_structp \fP\fIpng_ptr\fP\fB, FILE \fI*fp\fP\fB);\fP - -\fBvoid png_longjmp (png_structp \fP\fIpng_ptr\fP\fB, int \fIval\fP\fB);\fP - -\fBpng_voidp png_malloc (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP - -\fBpng_voidp png_malloc_default (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP - -\fBpng_voidp png_malloc_warn (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIsize\fP\fB);\fP - -\fBpng_uint_32 png_permit_mng_features (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fImng_features_permitted\fP\fB);\fP - -\fBvoid png_process_data (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fIbuffer\fP\fB, png_size_t \fIbuffer_size\fP\fB);\fP - -\fBpng_size_t png_process_data_pause \fP\fI(png_structp\fP\fB, int \fIsave\fP\fB);\fP - -\fBpng_uint_32 png_process_data_skip \fI(png_structp\fP\fB);\fP - -\fBvoid png_progressive_combine_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIold_row\fP\fB, png_bytep \fInew_row\fP\fB);\fP - -\fBvoid png_read_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBvoid png_read_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP - -\fBvoid png_read_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP - -\fBvoid png_read_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIrow\fP\fB, png_bytep \fIdisplay_row\fP\fB);\fP - -\fBvoid png_read_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_bytepp \fP\fIdisplay_row\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP - -\fBvoid png_read_update_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBint png_reset_zstream (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_save_int_32 (png_bytep \fP\fIbuf\fP\fB, png_int_32 \fIi\fP\fB);\fP - -\fBvoid png_save_uint_16 (png_bytep \fP\fIbuf\fP\fB, unsigned int \fIi\fP\fB);\fP - -\fBvoid png_save_uint_32 (png_bytep \fP\fIbuf\fP\fB, png_uint_32 \fIi\fP\fB);\fP - -\fBvoid png_set_add_alpha (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP - -\fBvoid png_set_alpha_mode (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, double \fIoutput_gamma\fP\fB);\fP - -\fBvoid png_set_alpha_mode_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImode\fP\fB, png_fixed_point \fIoutput_gamma\fP\fB);\fP - -\fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP - -\fBvoid png_set_background_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, png_uint_32 \fIbackground_gamma\fP\fB);\fP - -\fBvoid png_set_benign_errors (png_structp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP - -\fBvoid png_set_bgr (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_bKGD (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_16p \fIbackground\fP\fB);\fP - -\fBvoid png_set_check_for_invalid_index(png_structrp \fP\fIpng_ptr\fP\fB, int \fIallowed\fP\fB);\fP - -\fBvoid png_set_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIwhite_x\fP\fB, double \fP\fIwhite_y\fP\fB, double \fP\fIred_x\fP\fB, double \fP\fIred_y\fP\fB, double \fP\fIgreen_x\fP\fB, double \fP\fIgreen_y\fP\fB, double \fP\fIblue_x\fP\fB, double \fIblue_y\fP\fB);\fP - -\fBvoid png_set_cHRM_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwhite_x\fP\fB, png_uint_32 \fP\fIwhite_y\fP\fB, png_uint_32 \fP\fIred_x\fP\fB, png_uint_32 \fP\fIred_y\fP\fB, png_uint_32 \fP\fIgreen_x\fP\fB, png_uint_32 \fP\fIgreen_y\fP\fB, png_uint_32 \fP\fIblue_x\fP\fB, png_uint_32 \fIblue_y\fP\fB);\fP - -\fBvoid png_set_cHRM_XYZ (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fP\fIred_X\fP\fB, double \fP\fIred_Y\fP\fB, double \fP\fIred_Z\fP\fB, double \fP\fIgreen_X\fP\fB, double \fP\fIgreen_Y\fP\fB, double \fP\fIgreen_Z\fP\fB, double \fP\fIblue_X\fP\fB, double \fP\fIblue_Y\fP\fB, double \fIblue_Z\fP\fB);\fP - -\fBvoid png_set_cHRM_XYZ_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_fixed_point \fP\fIint_red_X\fP\fB, png_fixed_point \fP\fIint_red_Y\fP\fB, png_fixed_point \fP\fIint_red_Z\fP\fB, png_fixed_point \fP\fIint_green_X\fP\fB, png_fixed_point \fP\fIint_green_Y\fP\fB, png_fixed_point \fP\fIint_green_Z\fP\fB, png_fixed_point \fP\fIint_blue_X\fP\fB, png_fixed_point \fP\fIint_blue_Y\fP\fB, png_fixed_point \fIint_blue_Z\fP\fB);\fP - -\fBvoid png_set_chunk_cache_max (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIuser_chunk_cache_max\fP\fB);\fP - -\fBvoid png_set_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP - -\fBvoid png_set_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP - -\fBvoid png_set_compression_method (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod\fP\fB);\fP - -\fBvoid png_set_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP - -\fBvoid png_set_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP - -\fBvoid png_set_crc_action (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIcrit_action\fP\fB, int \fIancil_action\fP\fB);\fP - -\fBvoid png_set_error_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarning_fn\fP\fB);\fP - -\fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_expand_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_filler (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIfiller\fP\fB, int \fIflags\fP\fB);\fP - -\fBvoid png_set_filter (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fImethod\fP\fB, int \fIfilters\fP\fB);\fP - -\fBvoid png_set_filter_heuristics (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_doublep \fP\fIfilter_weights\fP\fB, png_doublep \fIfilter_costs\fP\fB);\fP - -\fBvoid png_set_filter_heuristics_fixed (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIheuristic_method\fP\fB, int \fP\fInum_weights\fP\fB, png_fixed_point_p \fP\fIfilter_weights\fP\fB, png_fixed_point_p \fIfilter_costs\fP\fB);\fP - -\fBvoid png_set_flush (png_structp \fP\fIpng_ptr\fP\fB, int \fInrows\fP\fB);\fP - -\fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP - -\fBvoid png_set_gamma_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIscreen_gamma\fP\fB, png_uint_32 \fIdefault_file_gamma\fP\fB);\fP - -\fBvoid png_set_gAMA (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, double \fIfile_gamma\fP\fB);\fP - -\fBvoid png_set_gAMA_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fIfile_gamma\fP\fB);\fP - -\fBvoid png_set_gray_1_2_4_to_8 (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_gray_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_hIST (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_16p \fIhist\fP\fB);\fP - -\fBvoid png_set_iCCP (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_const_charp \fP\fIname\fP\fB, int \fP\fIcompression_type\fP\fB, png_const_bytep \fP\fIprofile\fP\fB, png_uint_32 \fIproflen\fP\fB);\fP - -\fBint png_set_interlace_handling (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_invalid (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fImask\fP\fB);\fP - -\fBvoid png_set_invert_alpha (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_invert_mono (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_IHDR (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIwidth\fP\fB, png_uint_32 \fP\fIheight\fP\fB, int \fP\fIbit_depth\fP\fB, int \fP\fIcolor_type\fP\fB, int \fP\fIinterlace_type\fP\fB, int \fP\fIcompression_type\fP\fB, int \fIfilter_type\fP\fB);\fP - -\fBvoid png_set_keep_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIkeep\fP\fB, png_bytep \fP\fIchunk_list\fP\fB, int \fInum_chunks\fP\fB);\fP - -\fBjmp_buf* png_set_longjmp_fn (png_structp \fP\fIpng_ptr\fP\fB, png_longjmp_ptr \fP\fIlongjmp_fn\fP\fB, size_t \fIjmp_buf_size\fP\fB);\fP - -\fBvoid png_set_chunk_malloc_max (png_structp \fP\fIpng_ptr\fP\fB, png_alloc_size_t \fIuser_chunk_cache_max\fP\fB);\fP - -\fBvoid png_set_compression_buffer_size (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIsize\fP\fB);\fP - -\fBvoid png_set_mem_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fImem_ptr\fP\fB, png_malloc_ptr \fP\fImalloc_fn\fP\fB, png_free_ptr \fIfree_fn\fP\fB);\fP - -\fBvoid png_set_oFFs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIoffset_x\fP\fB, png_uint_32 \fP\fIoffset_y\fP\fB, int \fIunit_type\fP\fB);\fP - -\fBvoid png_set_packing (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_packswap (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_palette_to_rgb (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_pCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_charp \fP\fIpurpose\fP\fB, png_int_32 \fP\fIX0\fP\fB, png_int_32 \fP\fIX1\fP\fB, int \fP\fItype\fP\fB, int \fP\fInparams\fP\fB, png_charp \fP\fIunits\fP\fB, png_charpp \fIparams\fP\fB);\fP - -\fBvoid png_set_pHYs (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_uint_32 \fP\fIres_x\fP\fB, png_uint_32 \fP\fIres_y\fP\fB, int \fIunit_type\fP\fB);\fP - -\fBvoid png_set_progressive_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIprogressive_ptr\fP\fB, png_progressive_info_ptr \fP\fIinfo_fn\fP\fB, png_progressive_row_ptr \fP\fIrow_fn\fP\fB, png_progressive_end_ptr \fIend_fn\fP\fB);\fP - -\fBvoid png_set_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fInum_palette\fP\fB);\fP - -\fBvoid png_set_quantize (png_structp \fP\fIpng_ptr\fP\fB, png_colorp \fP\fIpalette\fP\fB, int \fP\fInum_palette\fP\fB, int \fP\fImaximum_colors\fP\fB, png_uint_16p \fP\fIhistogram\fP\fB, int \fIfull_quantize\fP\fB);\fP - -\fBvoid png_set_read_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fIread_data_fn\fP\fB);\fP - -\fBvoid png_set_read_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_read_status_ptr \fIread_row_fn\fP\fB);\fP - -\fBvoid png_set_read_user_chunk_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_chunk_ptr\fP\fB, png_user_chunk_ptr \fIread_user_chunk_fn\fP\fB);\fP - -\fBvoid png_set_read_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIread_user_transform_fn\fP\fB);\fP - -\fBvoid png_set_rgb_to_gray (png_structp \fP\fIpng_ptr\fP\fB, int \fP\fIerror_action\fP\fB, double \fP\fIred\fP\fB, double \fIgreen\fP\fB);\fP - -\fBvoid png_set_rgb_to_gray_fixed (png_structp \fP\fIpng_ptr\fP\fB, int error_action png_uint_32 \fP\fIred\fP\fB, png_uint_32 \fIgreen\fP\fB);\fP - -\fBvoid png_set_rows (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytepp \fIrow_pointers\fP\fB);\fP - -\fBvoid png_set_sBIT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_color_8p \fIsig_bit\fP\fB);\fP - -\fBvoid png_set_sCAL (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, double \fP\fIwidth\fP\fB, double \fIheight\fP\fB);\fP - -\fBvoid png_set_sCAL_fixed (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_fixed_point \fP\fIwidth\fP\fB, png_fixed_point \fIheight\fP\fB);\fP - -\fBvoid png_set_sCAL_s (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIunit\fP\fB, png_charp \fP\fIwidth\fP\fB, png_charp \fIheight\fP\fB);\fP - -\fBvoid png_set_scale_16 (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_shift (png_structp \fP\fIpng_ptr\fP\fB, png_color_8p \fItrue_bits\fP\fB);\fP - -\fBvoid png_set_sig_bytes (png_structp \fP\fIpng_ptr\fP\fB, int \fInum_bytes\fP\fB);\fP - -\fBvoid png_set_sPLT (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_spalette_p \fP\fIsplt_ptr\fP\fB, int \fInum_spalettes\fP\fB);\fP - -\fBvoid png_set_sRGB (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP - -\fBvoid png_set_sRGB_gAMA_and_cHRM (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fIsrgb_intent\fP\fB);\fP - -\fBvoid png_set_strip_16 (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_strip_alpha (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_strip_error_numbers (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIstrip_mode\fP\fB);\fP - -\fBvoid png_set_swap (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_swap_alpha (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_set_text (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_textp \fP\fItext_ptr\fP\fB, int \fInum_text\fP\fB);\fP - -\fBvoid png_set_text_compression_level (png_structp \fP\fIpng_ptr\fP\fB, int \fIlevel\fP\fB);\fP - -\fBvoid png_set_text_compression_mem_level (png_structp \fP\fIpng_ptr\fP\fB, int \fImem_level\fP\fB);\fP - -\fBvoid png_set_text_compression_strategy (png_structp \fP\fIpng_ptr\fP\fB, int \fIstrategy\fP\fB);\fP - -\fBvoid png_set_text_compression_window_bits (png_structp \fP\fIpng_ptr\fP\fB, int \fIwindow_bits\fP\fB);\fP - -\fBvoid \fP\fIpng_set_text_compression_method\fP\fB, (png_structp \fP\fIpng_ptr\fP\fB, int \fImethod)\fP\fB);\fP - -\fBvoid png_set_tIME (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_timep \fImod_time\fP\fB);\fP - -\fBvoid png_set_tRNS (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_bytep \fP\fItrans_alpha\fP\fB, int \fP\fInum_trans\fP\fB, png_color_16p \fItrans_color\fP\fB);\fP - -\fBvoid png_set_tRNS_to_alpha (png_structp \fIpng_ptr\fP\fB);\fP - -\fBpng_uint_32 png_set_unknown_chunks (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, png_unknown_chunkp \fP\fIunknowns\fP\fB, int \fP\fInum\fP\fB, int \fIlocation\fP\fB);\fP - -\fBvoid png_set_unknown_chunk_location (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fIchunk\fP\fB, int \fIlocation\fP\fB);\fP - -\fBvoid png_set_user_limits (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fP\fIuser_width_max\fP\fB, png_uint_32 \fIuser_height_max\fP\fB);\fP - -\fBvoid png_set_user_transform_info (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIuser_transform_ptr\fP\fB, int \fP\fIuser_transform_depth\fP\fB, int \fIuser_transform_channels\fP\fB);\fP - -\fBvoid png_set_write_fn (png_structp \fP\fIpng_ptr\fP\fB, png_voidp \fP\fIio_ptr\fP\fB, png_rw_ptr \fP\fIwrite_data_fn\fP\fB, png_flush_ptr \fIoutput_flush_fn\fP\fB);\fP - -\fBvoid png_set_write_status_fn (png_structp \fP\fIpng_ptr\fP\fB, png_write_status_ptr \fIwrite_row_fn\fP\fB);\fP - -\fBvoid png_set_write_user_transform_fn (png_structp \fP\fIpng_ptr\fP\fB, png_user_transform_ptr \fIwrite_user_transform_fn\fP\fB);\fP - -\fBint png_sig_cmp (png_bytep \fP\fIsig\fP\fB, png_size_t \fP\fIstart\fP\fB, png_size_t \fInum_to_check\fP\fB);\fP - -\fBvoid png_start_read_image (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_warning (png_structp \fP\fIpng_ptr\fP\fB, png_const_charp \fImessage\fP\fB);\fP - -\fBvoid png_write_chunk (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP - -\fBvoid png_write_chunk_data (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIdata\fP\fB, png_size_t \fIlength\fP\fB);\fP - -\fBvoid png_write_chunk_end (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_write_chunk_start (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fP\fIchunk_name\fP\fB, png_uint_32 \fIlength\fP\fB);\fP - -\fBvoid png_write_end (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBvoid png_write_flush (png_structp \fIpng_ptr\fP\fB);\fP - -\fBvoid png_write_image (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fIimage\fP\fB);\fP - -\fBvoid png_write_info (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP - -\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP - -\fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP - -\fBvoid png_write_rows (png_structp \fP\fIpng_ptr\fP\fB, png_bytepp \fP\fIrow\fP\fB, png_uint_32 \fInum_rows\fP\fB);\fP - -\fBvoid png_write_sig (png_structp \fIpng_ptr\fP\fB);\fP - -.SH DESCRIPTION -The -.I libpng -library supports encoding, decoding, and various manipulations of -the Portable Network Graphics (PNG) format image files. It uses the -.IR zlib(3) -compression library. -Following is a copy of the libpng-manual.txt file that accompanies libpng. -.SH LIBPNG.TXT -libpng-manual.txt - A description on how to use and modify libpng - - libpng version 1.6.12 - June 12, 2014 - Updated and distributed by Glenn Randers-Pehrson - - Copyright (c) 1998-2014 Glenn Randers-Pehrson - - This document is released under the libpng license. - For conditions of distribution and use, see the disclaimer - and license in png.h - - Based on: - - libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014 - Updated and distributed by Glenn Randers-Pehrson - Copyright (c) 1998-2014 Glenn Randers-Pehrson - - libpng 1.0 beta 6 - version 0.96 - May 28, 1997 - Updated and distributed by Andreas Dilger - Copyright (c) 1996, 1997 Andreas Dilger - - libpng 1.0 beta 2 - version 0.88 - January 26, 1996 - For conditions of distribution and use, see copyright - notice in png.h. Copyright (c) 1995, 1996 Guy Eric - Schalnat, Group 42, Inc. - - Updated/rewritten per request in the libpng FAQ - Copyright (c) 1995, 1996 Frank J. T. Wojcik - December 18, 1995 & January 20, 1996 - - TABLE OF CONTENTS - - I. Introduction - II. Structures - III. Reading - IV. Writing - V. Simplified API - VI. Modifying/Customizing libpng - VII. MNG support - VIII. Changes to Libpng from version 0.88 - IX. Changes to Libpng from version 1.0.x to 1.2.x - X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x - XI. Changes to Libpng from version 1.4.x to 1.5.x - XII. Changes to Libpng from version 1.5.x to 1.6.x - XIII. Detecting libpng - XIV. Source code repository - XV. Coding style - XVI. Y2K Compliance in libpng - -.SH I. Introduction - -This file describes how to use and modify the PNG reference library -(known as libpng) for your own use. In addition to this -file, example.c is a good starting point for using the library, as -it is heavily commented and should include everything most people -will need. We assume that libpng is already installed; see the -INSTALL file for instructions on how to configure and install libpng. - -For examples of libpng usage, see the files "example.c", "pngtest.c", -and the files in the "contrib" directory, all of which are included in -the libpng distribution. - -Libpng was written as a companion to the PNG specification, as a way -of reducing the amount of time and effort it takes to support the PNG -file format in application programs. - -The PNG specification (second edition), November 2003, is available as -a W3C Recommendation and as an ISO Standard (ISO/IEC 15948:2004 (E)) at -. It is technically equivalent -to the PNG specification (second edition) but has some additional material. - -The PNG-1.0 specification is available -as RFC 2083 and as a -W3C Recommendation . - -Some additional chunks are described in the special-purpose public chunks -documents at . - -Other information -about PNG, and the latest version of libpng, can be found at the PNG home -page, . - -Most users will not have to modify the library significantly; advanced -users may want to modify it more. All attempts were made to make it as -complete as possible, while keeping the code easy to understand. -Currently, this library only supports C. Support for other languages -is being considered. - -Libpng has been designed to handle multiple sessions at one time, -to be easily modifiable, to be portable to the vast majority of -machines (ANSI, K&R, 16-, 32-, and 64-bit) available, and to be easy -to use. The ultimate goal of libpng is to promote the acceptance of -the PNG file format in whatever way possible. While there is still -work to be done (see the TODO file), libpng should cover the -majority of the needs of its users. - -Libpng uses zlib for its compression and decompression of PNG files. -Further information about zlib, and the latest version of zlib, can -be found at the zlib home page, . -The zlib compression utility is a general purpose utility that is -useful for more than PNG files, and can be used without libpng. -See the documentation delivered with zlib for more details. -You can usually find the source files for the zlib utility wherever you -find the libpng source files. - -Libpng is thread safe, provided the threads are using different -instances of the structures. Each thread should have its own -png_struct and png_info instances, and thus its own image. -Libpng does not protect itself against two threads using the -same instance of a structure. - -.SH II. Structures - -There are two main structures that are important to libpng, png_struct -and png_info. Both are internal structures that are no longer exposed -in the libpng interface (as of libpng 1.5.0). - -The png_info structure is designed to provide information about the -PNG file. At one time, the fields of png_info were intended to be -directly accessible to the user. However, this tended to cause problems -with applications using dynamically loaded libraries, and as a result -a set of interface functions for png_info (the png_get_*() and png_set_*() -functions) was developed, and direct access to the png_info fields was -deprecated.. - -The png_struct structure is the object used by the library to decode a -single image. As of 1.5.0 this structure is also not exposed. - -Almost all libpng APIs require a pointer to a png_struct as the first argument. -Many (in particular the png_set and png_get APIs) also require a pointer -to png_info as the second argument. Some application visible macros -defined in png.h designed for basic data access (reading and writing -integers in the PNG format) don't take a png_info pointer, but it's almost -always safe to assume that a (png_struct*) has to be passed to call an API -function. - -You can have more than one png_info structure associated with an image, -as illustrated in pngtest.c, one for information valid prior to the -IDAT chunks and another (called "end_info" below) for things after them. - -The png.h header file is an invaluable reference for programming with libpng. -And while I'm on the topic, make sure you include the libpng header file: - -#include - -and also (as of libpng-1.5.0) the zlib header file, if you need it: - -#include - -.SS Types - -The png.h header file defines a number of integral types used by the -APIs. Most of these are fairly obvious; for example types corresponding -to integers of particular sizes and types for passing color values. - -One exception is how non-integral numbers are handled. For application -convenience most APIs that take such numbers have C (double) arguments; -however, internally PNG, and libpng, use 32 bit signed integers and encode -the value by multiplying by 100,000. As of libpng 1.5.0 a convenience -macro PNG_FP_1 is defined in png.h along with a type (png_fixed_point) -which is simply (png_int_32). - -All APIs that take (double) arguments also have a matching API that -takes the corresponding fixed point integer arguments. The fixed point -API has the same name as the floating point one with "_fixed" appended. -The actual range of values permitted in the APIs is frequently less than -the full range of (png_fixed_point) (\-21474 to +21474). When APIs require -a non-negative argument the type is recorded as png_uint_32 above. Consult -the header file and the text below for more information. - -Special care must be take with sCAL chunk handling because the chunk itself -uses non-integral values encoded as strings containing decimal floating point -numbers. See the comments in the header file. - -.SS Configuration - -The main header file function declarations are frequently protected by C -preprocessing directives of the form: - - #ifdef PNG_feature_SUPPORTED - declare-function - #endif - ... - #ifdef PNG_feature_SUPPORTED - use-function - #endif - -The library can be built without support for these APIs, although a -standard build will have all implemented APIs. Application programs -should check the feature macros before using an API for maximum -portability. From libpng 1.5.0 the feature macros set during the build -of libpng are recorded in the header file "pnglibconf.h" and this file -is always included by png.h. - -If you don't need to change the library configuration from the default, skip to -the next section ("Reading"). - -Notice that some of the makefiles in the 'scripts' directory and (in 1.5.0) all -of the build project files in the 'projects' directory simply copy -scripts/pnglibconf.h.prebuilt to pnglibconf.h. This means that these build -systems do not permit easy auto-configuration of the library - they only -support the default configuration. - -The easiest way to make minor changes to the libpng configuration when -auto-configuration is supported is to add definitions to the command line -using (typically) CPPFLAGS. For example: - -CPPFLAGS=\-DPNG_NO_FLOATING_ARITHMETIC - -will change the internal libpng math implementation for gamma correction and -other arithmetic calculations to fixed point, avoiding the need for fast -floating point support. The result can be seen in the generated pnglibconf.h - -make sure it contains the changed feature macro setting. - -If you need to make more extensive configuration changes - more than one or two -feature macro settings - you can either add \-DPNG_USER_CONFIG to the build -command line and put a list of feature macro settings in pngusr.h or you can set -DFA_XTRA (a makefile variable) to a file containing the same information in the -form of 'option' settings. - -A. Changing pnglibconf.h - -A variety of methods exist to build libpng. Not all of these support -reconfiguration of pnglibconf.h. To reconfigure pnglibconf.h it must either be -rebuilt from scripts/pnglibconf.dfa using awk or it must be edited by hand. - -Hand editing is achieved by copying scripts/pnglibconf.h.prebuilt to -pnglibconf.h and changing the lines defining the supported features, paying -very close attention to the 'option' information in scripts/pnglibconf.dfa -that describes those features and their requirements. This is easy to get -wrong. - -B. Configuration using DFA_XTRA - -Rebuilding from pnglibconf.dfa is easy if a functioning 'awk', or a later -variant such as 'nawk' or 'gawk', is available. The configure build will -automatically find an appropriate awk and build pnglibconf.h. -The scripts/pnglibconf.mak file contains a set of make rules for doing the -same thing if configure is not used, and many of the makefiles in the scripts -directory use this approach. - -When rebuilding simply write a new file containing changed options and set -DFA_XTRA to the name of this file. This causes the build to append the new file -to the end of scripts/pnglibconf.dfa. The pngusr.dfa file should contain lines -of the following forms: - -everything = off - -This turns all optional features off. Include it at the start of pngusr.dfa to -make it easier to build a minimal configuration. You will need to turn at least -some features on afterward to enable either reading or writing code, or both. - -option feature on -option feature off - -Enable or disable a single feature. This will automatically enable other -features required by a feature that is turned on or disable other features that -require a feature which is turned off. Conflicting settings will cause an error -message to be emitted by awk. - -setting feature default value - -Changes the default value of setting 'feature' to 'value'. There are a small -number of settings listed at the top of pnglibconf.h, they are documented in the -source code. Most of these values have performance implications for the library -but most of them have no visible effect on the API. Some can also be overridden -from the API. - -This method of building a customized pnglibconf.h is illustrated in -contrib/pngminim/*. See the "$(PNGCONF):" target in the makefile and -pngusr.dfa in these directories. - -C. Configuration using PNG_USER_CONFIG - -If \-DPNG_USER_CONFIG is added to the CPPFLAGS when pnglibconf.h is built, -the file pngusr.h will automatically be included before the options in -scripts/pnglibconf.dfa are processed. Your pngusr.h file should contain only -macro definitions turning features on or off or setting settings. - -Apart from the global setting "everything = off" all the options listed above -can be set using macros in pngusr.h: - -#define PNG_feature_SUPPORTED - -is equivalent to: - -option feature on - -#define PNG_NO_feature - -is equivalent to: - -option feature off - -#define PNG_feature value - -is equivalent to: - -setting feature default value - -Notice that in both cases, pngusr.dfa and pngusr.h, the contents of the -pngusr file you supply override the contents of scripts/pnglibconf.dfa - -If confusing or incomprehensible behavior results it is possible to -examine the intermediate file pnglibconf.dfn to find the full set of -dependency information for each setting and option. Simply locate the -feature in the file and read the C comments that precede it. - -This method is also illustrated in the contrib/pngminim/* makefiles and -pngusr.h. - -.SH III. Reading - -We'll now walk you through the possible functions to call when reading -in a PNG file sequentially, briefly explaining the syntax and purpose -of each one. See example.c and png.h for more detail. While -progressive reading is covered in the next section, you will still -need some of the functions discussed in this section to read a PNG -file. - -.SS Setup - -You will want to do the I/O initialization(*) before you get into libpng, -so if it doesn't work, you don't have much to undo. Of course, you -will also want to insure that you are, in fact, dealing with a PNG -file. Libpng provides a simple check to see if a file is a PNG file. -To use it, pass in the first 1 to 8 bytes of the file to the function -png_sig_cmp(), and it will return 0 (false) if the bytes match the -corresponding bytes of the PNG signature, or nonzero (true) otherwise. -Of course, the more bytes you pass in, the greater the accuracy of the -prediction. - -If you are intending to keep the file pointer open for use in libpng, -you must ensure you don't read more than 8 bytes from the beginning -of the file, and you also have to make a call to png_set_sig_bytes_read() -with the number of bytes you read from the beginning. Libpng will -then only check the bytes (if any) that your program didn't read. - -(*): If you are not using the standard I/O functions, you will need -to replace them with custom functions. See the discussion under -Customizing libpng. - - - FILE *fp = fopen(file_name, "rb"); - if (!fp) - { - return (ERROR); - } - - fread(header, 1, number, fp); - is_png = !png_sig_cmp(header, 0, number); - - if (!is_png) - { - return (NOT_PNG); - } - - -Next, png_struct and png_info need to be allocated and initialized. In -order to ensure that the size of these structures is correct even with a -dynamically linked libpng, there are functions to initialize and -allocate the structures. We also pass the library version, optional -pointers to error handling functions, and a pointer to a data struct for -use by the error functions, if necessary (the pointer and functions can -be NULL if the default error handlers are to be used). See the section -on Changes to Libpng below regarding the old initialization functions. -The structure allocation functions quietly return NULL if they fail to -create the structure, so your application should check for that. - - png_structp png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, - (png_infopp)NULL, (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -use a libpng that was built with PNG_USER_MEM_SUPPORTED defined, and use -png_create_read_struct_2() instead of png_create_read_struct(): - - png_structp png_ptr = png_create_read_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -The error handling routines passed to png_create_read_struct() -and the memory alloc/free routines passed to png_create_struct_2() -are only necessary if you are not using the libpng supplied error -handling and memory alloc/free functions. - -When libpng encounters an error, it expects to longjmp back -to your routine. Therefore, you will need to call setjmp and pass -your png_jmpbuf(png_ptr). If you read the file from different -routines, you will need to update the longjmp buffer every time you enter -a new routine that will call a png_*() function. - -See your documentation of setjmp/longjmp for your compiler for more -information on setjmp/longjmp. See the discussion on libpng error -handling in the Customizing Libpng section below for more information -on the libpng error handling. If an error occurs, and libpng longjmp's -back to your setjmp, you will want to call png_destroy_read_struct() to -free any memory. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - fclose(fp); - return (ERROR); - } - -Pass (png_infopp)NULL instead of &end_info if you didn't create -an end_info structure. - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_NO_SETJMP, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -You can #define PNG_ABORT() to a function that does something -more useful than abort(), as long as your function does not -return. - -Now you need to set up the input code. The default for libpng is to -use the C function fread(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. If you wish to handle reading data in another -way, you need not call the png_init_io() function, but you must then -implement the libpng I/O methods discussed in the Customizing Libpng -section below. - - png_init_io(png_ptr, fp); - -If you had previously opened the file and read any of the signature from -the beginning in order to see if this was a PNG file, you need to let -libpng know that there are some bytes missing from the start of the file. - - png_set_sig_bytes(png_ptr, number); - -You can change the zlib compression buffer size to be used while -reading compressed data with - - png_set_compression_buffer_size(png_ptr, buffer_size); - -where the default size is 8192 bytes. Note that the buffer size -is changed immediately and the buffer is reallocated immediately, -instead of setting a flag to be acted upon later. - -If you want CRC errors to be handled in a different manner than -the default, use - - png_set_crc_action(png_ptr, crit_action, ancil_action); - -The values for png_set_crc_action() say how libpng is to handle CRC errors in -ancillary and critical chunks, and whether to use the data contained -therein. Note that it is impossible to "discard" data in a critical -chunk. - -Choices for (int) crit_action are - PNG_CRC_DEFAULT 0 error/quit - PNG_CRC_ERROR_QUIT 1 error/quit - PNG_CRC_WARN_USE 3 warn/use data - PNG_CRC_QUIET_USE 4 quiet/use data - PNG_CRC_NO_CHANGE 5 use the current value - -Choices for (int) ancil_action are - PNG_CRC_DEFAULT 0 error/quit - PNG_CRC_ERROR_QUIT 1 error/quit - PNG_CRC_WARN_DISCARD 2 warn/discard data - PNG_CRC_WARN_USE 3 warn/use data - PNG_CRC_QUIET_USE 4 quiet/use data - PNG_CRC_NO_CHANGE 5 use the current value - -.SS Setting up callback code - -You can set up a callback function to handle any unknown chunks in the -input stream. You must supply the function - - read_chunk_callback(png_structp png_ptr, - png_unknown_chunkp chunk); - { - /* The unknown chunk structure contains your - chunk data, along with similar data for any other - unknown chunks: */ - - png_byte name[5]; - png_byte *data; - png_size_t size; - - /* Note that libpng has already taken care of - the CRC handling */ - - /* put your code here. Search for your chunk in the - unknown chunk structure, process it, and return one - of the following: */ - - return (\-n); /* chunk had an error */ - return (0); /* did not recognize */ - return (n); /* success */ - } - -(You can give your function another name that you like instead of -"read_chunk_callback") - -To inform libpng about your function, use - - png_set_read_user_chunk_fn(png_ptr, user_chunk_ptr, - read_chunk_callback); - -This names not only the callback function, but also a user pointer that -you can retrieve with - - png_get_user_chunk_ptr(png_ptr); - -If you call the png_set_read_user_chunk_fn() function, then all unknown -chunks which the callback does not handle will be saved when read. You can -cause them to be discarded by returning '1' ("handled") instead of '0'. This -behavior will change in libpng 1.7 and the default handling set by the -png_set_keep_unknown_chunks() function, described below, will be used when the -callback returns 0. If you want the existing behavior you should set the global -default to PNG_HANDLE_CHUNK_IF_SAFE now; this is compatible with all current -versions of libpng and with 1.7. Libpng 1.6 issues a warning if you keep the -default, or PNG_HANDLE_CHUNK_NEVER, and the callback returns 0. - -At this point, you can set up a callback function that will be -called after each row has been read, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void read_row_callback(png_structp png_ptr, - png_uint_32 row, int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "read_row_callback") - -To inform libpng about your function, use - - png_set_read_status_fn(png_ptr, read_row_callback); - -When this function is called the row has already been completely processed and -the 'row' and 'pass' refer to the next row to be handled. For the -non-interlaced case the row that was just handled is simply one less than the -passed in row number, and pass will always be 0. For the interlaced case the -same applies unless the row value is 0, in which case the row just handled was -the last one from one of the preceding passes. Because interlacing may skip a -pass you cannot be sure that the preceding pass is just 'pass\-1', if you really -need to know what the last pass is record (row,pass) from the callback and use -the last recorded value each time. - -As with the user transform you can find the output row using the -PNG_ROW_FROM_PASS_ROW macro. - -.SS Unknown-chunk handling - -Now you get to set the way the library processes unknown chunks in the -input PNG stream. Both known and unknown chunks will be read. Normal -behavior is that known chunks will be parsed into information in -various info_ptr members while unknown chunks will be discarded. This -behavior can be wasteful if your application will never use some known -chunk types. To change this, you can call: - - png_set_keep_unknown_chunks(png_ptr, keep, - chunk_list, num_chunks); - - keep - 0: default unknown chunk handling - 1: ignore; do not keep - 2: keep only if safe-to-copy - 3: keep even if unsafe-to-copy - - You can use these definitions: - PNG_HANDLE_CHUNK_AS_DEFAULT 0 - PNG_HANDLE_CHUNK_NEVER 1 - PNG_HANDLE_CHUNK_IF_SAFE 2 - PNG_HANDLE_CHUNK_ALWAYS 3 - - chunk_list - list of chunks affected (a byte string, - five bytes per chunk, NULL or '\0' if - num_chunks is positive; ignored if - numchunks <= 0). - - num_chunks - number of chunks affected; if 0, all - unknown chunks are affected. If positive, - only the chunks in the list are affected, - and if negative all unknown chunks and - all known chunks except for the IHDR, - PLTE, tRNS, IDAT, and IEND chunks are - affected. - -Unknown chunks declared in this way will be saved as raw data onto a -list of png_unknown_chunk structures. If a chunk that is normally -known to libpng is named in the list, it will be handled as unknown, -according to the "keep" directive. If a chunk is named in successive -instances of png_set_keep_unknown_chunks(), the final instance will -take precedence. The IHDR and IEND chunks should not be named in -chunk_list; if they are, libpng will process them normally anyway. -If you know that your application will never make use of some particular -chunks, use PNG_HANDLE_CHUNK_NEVER (or 1) as demonstrated below. - -Here is an example of the usage of png_set_keep_unknown_chunks(), -where the private "vpAg" chunk will later be processed by a user chunk -callback function: - - png_byte vpAg[5]={118, 112, 65, 103, (png_byte) '\0'}; - - #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - png_byte unused_chunks[]= - { - 104, 73, 83, 84, (png_byte) '\0', /* hIST */ - 105, 84, 88, 116, (png_byte) '\0', /* iTXt */ - 112, 67, 65, 76, (png_byte) '\0', /* pCAL */ - 115, 67, 65, 76, (png_byte) '\0', /* sCAL */ - 115, 80, 76, 84, (png_byte) '\0', /* sPLT */ - 116, 73, 77, 69, (png_byte) '\0', /* tIME */ - }; - #endif - - ... - - #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED) - /* ignore all unknown chunks - * (use global setting "2" for libpng16 and earlier): - */ - png_set_keep_unknown_chunks(read_ptr, 2, NULL, 0); - - /* except for vpAg: */ - png_set_keep_unknown_chunks(read_ptr, 2, vpAg, 1); - - /* also ignore unused known chunks: */ - png_set_keep_unknown_chunks(read_ptr, 1, unused_chunks, - (int)(sizeof unused_chunks)/5); - #endif - -.SS User limits - -The PNG specification allows the width and height of an image to be as -large as 2^(31\-1 (0x7fffffff), or about 2.147 billion rows and columns. -Since very few applications really need to process such large images, -we have imposed an arbitrary 1-million limit on rows and columns. -Larger images will be rejected immediately with a png_error() call. If -you wish to change this limit, you can use - - png_set_user_limits(png_ptr, width_max, height_max); - -to set your own limits, or use width_max = height_max = 0x7fffffffL -to allow all valid dimensions (libpng may reject some very large images -anyway because of potential buffer overflow conditions). - -You should put this statement after you create the PNG structure and -before calling png_read_info(), png_read_png(), or png_process_data(). - -When writing a PNG datastream, put this statement before calling -png_write_info() or png_write_png(). - -If you need to retrieve the limits that are being applied, use - - width_max = png_get_user_width_max(png_ptr); - height_max = png_get_user_height_max(png_ptr); - -The PNG specification sets no limit on the number of ancillary chunks -allowed in a PNG datastream. You can impose a limit on the total number -of sPLT, tEXt, iTXt, zTXt, and unknown chunks that will be stored, with - - png_set_chunk_cache_max(png_ptr, user_chunk_cache_max); - -where 0x7fffffffL means unlimited. You can retrieve this limit with - - chunk_cache_max = png_get_chunk_cache_max(png_ptr); - -You can also set a limit on the amount of memory that a compressed chunk -other than IDAT can occupy, with - - png_set_chunk_malloc_max(png_ptr, user_chunk_malloc_max); - -and you can retrieve the limit with - - chunk_malloc_max = png_get_chunk_malloc_max(png_ptr); - -Any chunks that would cause either of these limits to be exceeded will -be ignored. - -.SS Information about your system - -If you intend to display the PNG or to incorporate it in other image data you -need to tell libpng information about your display or drawing surface so that -libpng can convert the values in the image to match the display. - -From libpng-1.5.4 this information can be set before reading the PNG file -header. In earlier versions png_set_gamma() existed but behaved incorrectly if -called before the PNG file header had been read and png_set_alpha_mode() did not -exist. - -If you need to support versions prior to libpng-1.5.4 test the version number -as illustrated below using "PNG_LIBPNG_VER >= 10504" and follow the procedures -described in the appropriate manual page. - -You give libpng the encoding expected by your system expressed as a 'gamma' -value. You can also specify a default encoding for the PNG file in -case the required information is missing from the file. By default libpng -assumes that the PNG data matches your system, to keep this default call: - - png_set_gamma(png_ptr, screen_gamma, output_gamma); - -or you can use the fixed point equivalent: - - png_set_gamma_fixed(png_ptr, PNG_FP_1*screen_gamma, - PNG_FP_1*output_gamma); - -If you don't know the gamma for your system it is probably 2.2 - a good -approximation to the IEC standard for display systems (sRGB). If images are -too contrasty or washed out you got the value wrong - check your system -documentation! - -Many systems permit the system gamma to be changed via a lookup table in the -display driver, a few systems, including older Macs, change the response by -default. As of 1.5.4 three special values are available to handle common -situations: - - PNG_DEFAULT_sRGB: Indicates that the system conforms to the - IEC 61966-2-1 standard. This matches almost - all systems. - PNG_GAMMA_MAC_18: Indicates that the system is an older - (pre Mac OS 10.6) Apple Macintosh system with - the default settings. - PNG_GAMMA_LINEAR: Just the fixed point value for 1.0 - indicates - that the system expects data with no gamma - encoding. - -You would use the linear (unencoded) value if you need to process the pixel -values further because this avoids the need to decode and re-encode each -component value whenever arithmetic is performed. A lot of graphics software -uses linear values for this reason, often with higher precision component values -to preserve overall accuracy. - - -The output_gamma value expresses how to decode the output values, not how -they are encoded. The values used correspond to the normal numbers used to -describe the overall gamma of a computer display system; for example 2.2 for -an sRGB conformant system. The values are scaled by 100000 in the _fixed -version of the API (so 220000 for sRGB.) - -The inverse of the value is always used to provide a default for the PNG file -encoding if it has no gAMA chunk and if png_set_gamma() has not been called -to override the PNG gamma information. - -When the ALPHA_OPTIMIZED mode is selected the output gamma is used to encode -opaque pixels however pixels with lower alpha values are not encoded, -regardless of the output gamma setting. - -When the standard Porter Duff handling is requested with mode 1 the output -encoding is set to be linear and the output_gamma value is only relevant -as a default for input data that has no gamma information. The linear output -encoding will be overridden if png_set_gamma() is called - the results may be -highly unexpected! - -The following numbers are derived from the sRGB standard and the research -behind it. sRGB is defined to be approximated by a PNG gAMA chunk value of -0.45455 (1/2.2) for PNG. The value implicitly includes any viewing -correction required to take account of any differences in the color -environment of the original scene and the intended display environment; the -value expresses how to *decode* the image for display, not how the original -data was *encoded*. - -sRGB provides a peg for the PNG standard by defining a viewing environment. -sRGB itself, and earlier TV standards, actually use a more complex transform -(a linear portion then a gamma 2.4 power law) than PNG can express. (PNG is -limited to simple power laws.) By saying that an image for direct display on -an sRGB conformant system should be stored with a gAMA chunk value of 45455 -(11.3.3.2 and 11.3.3.5 of the ISO PNG specification) the PNG specification -makes it possible to derive values for other display systems and -environments. - -The Mac value is deduced from the sRGB based on an assumption that the actual -extra viewing correction used in early Mac display systems was implemented as -a power 1.45 lookup table. - -Any system where a programmable lookup table is used or where the behavior of -the final display device characteristics can be changed requires system -specific code to obtain the current characteristic. However this can be -difficult and most PNG gamma correction only requires an approximate value. - -By default, if png_set_alpha_mode() is not called, libpng assumes that all -values are unencoded, linear, values and that the output device also has a -linear characteristic. This is only very rarely correct - it is invariably -better to call png_set_alpha_mode() with PNG_DEFAULT_sRGB than rely on the -default if you don't know what the right answer is! - -The special value PNG_GAMMA_MAC_18 indicates an older Mac system (pre Mac OS -10.6) which used a correction table to implement a somewhat lower gamma on an -otherwise sRGB system. - -Both these values are reserved (not simple gamma values) in order to allow -more precise correction internally in the future. - -NOTE: the values can be passed to either the fixed or floating -point APIs, but the floating point API will also accept floating point -values. - -The second thing you may need to tell libpng about is how your system handles -alpha channel information. Some, but not all, PNG files contain an alpha -channel. To display these files correctly you need to compose the data onto a -suitable background, as described in the PNG specification. - -Libpng only supports composing onto a single color (using png_set_background; -see below). Otherwise you must do the composition yourself and, in this case, -you may need to call png_set_alpha_mode: - - #if PNG_LIBPNG_VER >= 10504 - png_set_alpha_mode(png_ptr, mode, screen_gamma); - #else - png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma); - #endif - -The screen_gamma value is the same as the argument to png_set_gamma; however, -how it affects the output depends on the mode. png_set_alpha_mode() sets the -file gamma default to 1/screen_gamma, so normally you don't need to call -png_set_gamma. If you need different defaults call png_set_gamma() before -png_set_alpha_mode() - if you call it after it will override the settings made -by png_set_alpha_mode(). - -The mode is as follows: - - PNG_ALPHA_PNG: The data is encoded according to the PNG -specification. Red, green and blue, or gray, components are -gamma encoded color values and are not premultiplied by the -alpha value. The alpha value is a linear measure of the -contribution of the pixel to the corresponding final output pixel. - -You should normally use this format if you intend to perform -color correction on the color values; most, maybe all, color -correction software has no handling for the alpha channel and, -anyway, the math to handle pre-multiplied component values is -unnecessarily complex. - -Before you do any arithmetic on the component values you need -to remove the gamma encoding and multiply out the alpha -channel. See the PNG specification for more detail. It is -important to note that when an image with an alpha channel is -scaled, linear encoded, pre-multiplied component values must -be used! - -The remaining modes assume you don't need to do any further color correction or -that if you do, your color correction software knows all about alpha (it -probably doesn't!). They 'associate' the alpha with the color information by -storing color channel values that have been scaled by the alpha. The -advantage is that the color channels can be resampled (the image can be -scaled) in this form. The disadvantage is that normal practice is to store -linear, not (gamma) encoded, values and this requires 16-bit channels for -still images rather than the 8-bit channels that are just about sufficient if -gamma encoding is used. In addition all non-transparent pixel values, -including completely opaque ones, must be gamma encoded to produce the final -image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes -described below (the latter being the two common names for associated alpha -color channels). Note that PNG files always contain non-associated color -channels; png_set_alpha_mode() with one of the modes causes the decoder to -convert the pixels to an associated form before returning them to your -application. - -Since it is not necessary to perform arithmetic on opaque color values so -long as they are not to be resampled and are in the final color space it is -possible to optimize the handling of alpha by storing the opaque pixels in -the PNG format (adjusted for the output color space) while storing partially -opaque pixels in the standard, linear, format. The accuracy required for -standard alpha composition is relatively low, because the pixels are -isolated, therefore typically the accuracy loss in storing 8-bit linear -values is acceptable. (This is not true if the alpha channel is used to -simulate transparency over large areas - use 16 bits or the PNG mode in -this case!) This is the 'OPTIMIZED' mode. For this mode a pixel is -treated as opaque only if the alpha value is equal to the maximum value. - - PNG_ALPHA_STANDARD: The data libpng produces is encoded in the -standard way assumed by most correctly written graphics software. -The gamma encoding will be removed by libpng and the -linear component values will be pre-multiplied by the -alpha channel. - -With this format the final image must be re-encoded to -match the display gamma before the image is displayed. -If your system doesn't do that, yet still seems to -perform arithmetic on the pixels without decoding them, -it is broken - check out the modes below. - -With PNG_ALPHA_STANDARD libpng always produces linear -component values, whatever screen_gamma you supply. The -screen_gamma value is, however, used as a default for -the file gamma if the PNG file has no gamma information. - -If you call png_set_gamma() after png_set_alpha_mode() you -will override the linear encoding. Instead the -pre-multiplied pixel values will be gamma encoded but -the alpha channel will still be linear. This may -actually match the requirements of some broken software, -but it is unlikely. - -While linear 8-bit data is often used it has -insufficient precision for any image with a reasonable -dynamic range. To avoid problems, and if your software -supports it, use png_set_expand_16() to force all -components to 16 bits. - - PNG_ALPHA_OPTIMIZED: This mode is the same as PNG_ALPHA_STANDARD -except that completely opaque pixels are gamma encoded according to -the screen_gamma value. Pixels with alpha less than 1.0 -will still have linear components. - -Use this format if you have control over your -compositing software and so don't do other arithmetic -(such as scaling) on the data you get from libpng. Your -compositing software can simply copy opaque pixels to -the output but still has linear values for the -non-opaque pixels. - -In normal compositing, where the alpha channel encodes -partial pixel coverage (as opposed to broad area -translucency), the inaccuracies of the 8-bit -representation of non-opaque pixels are irrelevant. - -You can also try this format if your software is broken; -it might look better. - - PNG_ALPHA_BROKEN: This is PNG_ALPHA_STANDARD; however, all component -values, including the alpha channel are gamma encoded. This is -broken because, in practice, no implementation that uses this choice -correctly undoes the encoding before handling alpha composition. Use this -choice only if other serious errors in the software or hardware you use -mandate it. In most cases of broken software or hardware the bug in the -final display manifests as a subtle halo around composited parts of the -image. You may not even perceive this as a halo; the composited part of -the image may simply appear separate from the background, as though it had -been cut out of paper and pasted on afterward. - -If you don't have to deal with bugs in software or hardware, or if you can fix -them, there are three recommended ways of using png_set_alpha_mode(): - - png_set_alpha_mode(png_ptr, PNG_ALPHA_PNG, - screen_gamma); - -You can do color correction on the result (libpng does not currently -support color correction internally). When you handle the alpha channel -you need to undo the gamma encoding and multiply out the alpha. - - png_set_alpha_mode(png_ptr, PNG_ALPHA_STANDARD, - screen_gamma); - png_set_expand_16(png_ptr); - -If you are using the high level interface, don't call png_set_expand_16(); -instead pass PNG_TRANSFORM_EXPAND_16 to the interface. - -With this mode you can't do color correction, but you can do arithmetic, -including composition and scaling, on the data without further processing. - - png_set_alpha_mode(png_ptr, PNG_ALPHA_OPTIMIZED, - screen_gamma); - -You can avoid the expansion to 16-bit components with this mode, but you -lose the ability to scale the image or perform other linear arithmetic. -All you can do is compose the result onto a matching output. Since this -mode is libpng-specific you also need to write your own composition -software. - -The following are examples of calls to png_set_alpha_mode to achieve the -required overall gamma correction and, where necessary, alpha -premultiplication. - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - -This is the default libpng handling of the alpha channel - it is not -pre-multiplied into the color components. In addition the call states -that the output is for a sRGB system and causes all PNG files without gAMA -chunks to be assumed to be encoded using sRGB. - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - -In this case the output is assumed to be something like an sRGB conformant -display preceeded by a power-law lookup table of power 1.45. This is how -early Mac systems behaved. - - png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); - -This is the classic Jim Blinn approach and will work in academic -environments where everything is done by the book. It has the shortcoming -of assuming that input PNG data with no gamma information is linear - this -is unlikely to be correct unless the PNG files where generated locally. -Most of the time the output precision will be so low as to show -significant banding in dark areas of the image. - - png_set_expand_16(pp); - png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); - -This is a somewhat more realistic Jim Blinn inspired approach. PNG files -are assumed to have the sRGB encoding if not marked with a gamma value and -the output is always 16 bits per component. This permits accurate scaling -and processing of the data. If you know that your input PNG files were -generated locally you might need to replace PNG_DEFAULT_sRGB with the -correct value for your system. - - png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); - -If you just need to composite the PNG image onto an existing background -and if you control the code that does this you can use the optimization -setting. In this case you just copy completely opaque pixels to the -output. For pixels that are not completely transparent (you just skip -those) you do the composition math using png_composite or png_composite_16 -below then encode the resultant 8-bit or 16-bit values to match the output -encoding. - - Other cases - -If neither the PNG nor the standard linear encoding work for you because -of the software or hardware you use then you have a big problem. The PNG -case will probably result in halos around the image. The linear encoding -will probably result in a washed out, too bright, image (it's actually too -contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably -substantially reduce the halos. Alternatively try: - - png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); - -This option will also reduce the halos, but there will be slight dark -halos round the opaque parts of the image where the background is light. -In the OPTIMIZED mode the halos will be light halos where the background -is dark. Take your pick - the halos are unavoidable unless you can get -your hardware/software fixed! (The OPTIMIZED approach is slightly -faster.) - -When the default gamma of PNG files doesn't match the output gamma. -If you have PNG files with no gamma information png_set_alpha_mode allows -you to provide a default gamma, but it also sets the ouput gamma to the -matching value. If you know your PNG files have a gamma that doesn't -match the output you can take advantage of the fact that -png_set_alpha_mode always sets the output gamma but only sets the PNG -default if it is not already set: - - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - -The first call sets both the default and the output gamma values, the -second call overrides the output gamma without changing the default. This -is easier than achieving the same effect with png_set_gamma. You must use -PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will -fire if more than one call to png_set_alpha_mode and png_set_background is -made in the same read operation, however multiple calls with PNG_ALPHA_PNG -are ignored. - -If you don't need, or can't handle, the alpha channel you can call -png_set_background() to remove it by compositing against a fixed color. Don't -call png_set_strip_alpha() to do this - it will leave spurious pixel values in -transparent parts of this image. - - png_set_background(png_ptr, &background_color, - PNG_BACKGROUND_GAMMA_SCREEN, 0, 1); - -The background_color is an RGB or grayscale value according to the data format -libpng will produce for you. Because you don't yet know the format of the PNG -file, if you call png_set_background at this point you must arrange for the -format produced by libpng to always have 8-bit or 16-bit components and then -store the color as an 8-bit or 16-bit color as appropriate. The color contains -separate gray and RGB component values, so you can let libpng produce gray or -RGB output according to the input format, but low bit depth grayscale images -must always be converted to at least 8-bit format. (Even though low bit depth -grayscale images can't have an alpha channel they can have a transparent -color!) - -You set the transforms you need later, either as flags to the high level -interface or libpng API calls for the low level interface. For reference the -settings and API calls required are: - -8-bit values: - PNG_TRANSFORM_SCALE_16 | PNG_EXPAND - png_set_expand(png_ptr); png_set_scale_16(png_ptr); - - If you must get exactly the same inaccurate results - produced by default in versions prior to libpng-1.5.4, - use PNG_TRANSFORM_STRIP_16 and png_set_strip_16(png_ptr) - instead. - -16-bit values: - PNG_TRANSFORM_EXPAND_16 - png_set_expand_16(png_ptr); - -In either case palette image data will be expanded to RGB. If you just want -color data you can add PNG_TRANSFORM_GRAY_TO_RGB or png_set_gray_to_rgb(png_ptr) -to the list. - -Calling png_set_background before the PNG file header is read will not work -prior to libpng-1.5.4. Because the failure may result in unexpected warnings or -errors it is therefore much safer to call png_set_background after the head has -been read. Unfortunately this means that prior to libpng-1.5.4 it cannot be -used with the high level interface. - -.SS The high-level read interface - -At this point there are two ways to proceed; through the high-level -read interface, or through a sequence of low-level read operations. -You can use the high-level interface if (a) you are willing to read -the entire image into memory, and (b) the input transformations -you want to do are limited to the following set: - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_SCALE_16 Strip 16-bit samples to - 8-bit accurately - PNG_TRANSFORM_STRIP_16 Chop 16-bit samples to - 8-bit less accurately - PNG_TRANSFORM_STRIP_ALPHA Discard the alpha channel - PNG_TRANSFORM_PACKING Expand 1, 2 and 4-bit - samples to bytes - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_EXPAND Perform set_expand() - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - PNG_TRANSFORM_GRAY_TO_RGB Expand grayscale samples - to RGB (or GA to RGBA) - PNG_TRANSFORM_EXPAND_16 Expand samples to 16 bits - -(This excludes setting a background color, doing gamma transformation, -quantizing, and setting filler.) If this is the case, simply do this: - - png_read_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of some -set of transformation flags. This call is equivalent to png_read_info(), -followed the set of transformations indicated by the transform mask, -then png_read_image(), and finally png_read_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future input transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_read_png(). - -After you have called png_read_png(), you can retrieve the image data -with - - row_pointers = png_get_rows(png_ptr, info_ptr); - -where row_pointers is an array of pointers to the pixel data for each row: - - png_bytep row_pointers[height]; - -If you know your image size and pixel size ahead of time, you can allocate -row_pointers prior to calling png_read_png() with - - if (height > PNG_UINT_32_MAX/(sizeof (png_byte))) - png_error (png_ptr, - "Image is too tall to process in memory"); - - if (width > PNG_UINT_32_MAX/pixel_size) - png_error (png_ptr, - "Image is too wide to process in memory"); - - row_pointers = png_malloc(png_ptr, - height*(sizeof (png_bytep))); - - for (int i=0; i) and -png_get_(png_ptr, info_ptr, ...) functions return non-zero if the -data has been read, or zero if it is missing. The parameters to the -png_get_ are set directly if they are simple data types, or a -pointer into the info_ptr is returned for any complex types. - -The colorspace data from gAMA, cHRM, sRGB, iCCP, and sBIT chunks -is simply returned to give the application information about how the -image was encoded. Libpng itself only does transformations using the file -gamma when combining semitransparent pixels with the background color, and, -since libpng-1.6.0, when converting between 8-bit sRGB and 16-bit linear pixels -within the simplified API. Libpng also uses the file gamma when converting -RGB to gray, beginning with libpng-1.0.5, if the application calls -png_set_rgb_to_gray()). - - png_get_PLTE(png_ptr, info_ptr, &palette, - &num_palette); - - palette - the palette for the file - (array of png_color) - - num_palette - number of entries in the palette - - png_get_gAMA(png_ptr, info_ptr, &file_gamma); - png_get_gAMA_fixed(png_ptr, info_ptr, &int_file_gamma); - - file_gamma - the gamma at which the file is - written (PNG_INFO_gAMA) - - int_file_gamma - 100,000 times the gamma at which the - file is written - - png_get_cHRM(png_ptr, info_ptr, &white_x, &white_y, &red_x, - &red_y, &green_x, &green_y, &blue_x, &blue_y) - png_get_cHRM_XYZ(png_ptr, info_ptr, &red_X, &red_Y, &red_Z, - &green_X, &green_Y, &green_Z, &blue_X, &blue_Y, - &blue_Z) - png_get_cHRM_fixed(png_ptr, info_ptr, &int_white_x, - &int_white_y, &int_red_x, &int_red_y, - &int_green_x, &int_green_y, &int_blue_x, - &int_blue_y) - png_get_cHRM_XYZ_fixed(png_ptr, info_ptr, &int_red_X, &int_red_Y, - &int_red_Z, &int_green_X, &int_green_Y, - &int_green_Z, &int_blue_X, &int_blue_Y, - &int_blue_Z) - - {white,red,green,blue}_{x,y} - A color space encoding specified using the - chromaticities of the end points and the - white point. (PNG_INFO_cHRM) - - {red,green,blue}_{X,Y,Z} - A color space encoding specified using the - encoding end points - the CIE tristimulus - specification of the intended color of the red, - green and blue channels in the PNG RGB data. - The white point is simply the sum of the three - end points. (PNG_INFO_cHRM) - - png_get_sRGB(png_ptr, info_ptr, &srgb_intent); - - srgb_intent - the rendering intent (PNG_INFO_sRGB) - The presence of the sRGB chunk - means that the pixel data is in the - sRGB color space. This chunk also - implies specific values of gAMA and - cHRM. - - png_get_iCCP(png_ptr, info_ptr, &name, - &compression_type, &profile, &proflen); - - name - The profile name. - - compression_type - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - - profile - International Color Consortium color - profile data. May contain NULs. - - proflen - length of profile data in bytes. - - png_get_sBIT(png_ptr, info_ptr, &sig_bit); - - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, - red, green, and blue channels, - whichever are appropriate for the - given color type (png_color_16) - - png_get_tRNS(png_ptr, info_ptr, &trans_alpha, - &num_trans, &trans_color); - - trans_alpha - array of alpha (transparency) - entries for palette (PNG_INFO_tRNS) - - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - trans_color - graylevel or color sample values of - the single transparent color for - non-paletted images (PNG_INFO_tRNS) - - png_get_hIST(png_ptr, info_ptr, &hist); - (PNG_INFO_hIST) - - hist - histogram of palette (array of - png_uint_16) - - png_get_tIME(png_ptr, info_ptr, &mod_time); - - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_get_bKGD(png_ptr, info_ptr, &background); - - background - background color (of type - png_color_16p) (PNG_VALID_bKGD) - valid 16-bit red, green and blue - values, regardless of color_type - - num_comments = png_get_text(png_ptr, info_ptr, - &text_ptr, &num_text); - - num_comments - number of comments - - text_ptr - array of png_text holding image - comments - - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - - text_ptr[i].text - text comments for current - keyword. Can be empty. - - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - - text_ptr[i].lang - language of comment (empty - string for unknown). - - text_ptr[i].lang_key - keyword in UTF-8 - (empty string for unknown). - - Note that the itxt_length, lang, and lang_key - members of the text_ptr structure only exist when the - library is built with iTXt chunk support. Prior to - libpng-1.4.0 the library was built by default without - iTXt support. Also note that when iTXt is supported, - they contain NULL pointers when the "compression" - field contains PNG_TEXT_COMPRESSION_NONE or - PNG_TEXT_COMPRESSION_zTXt. - - num_text - number of comments (same as - num_comments; you can put NULL here - to avoid the duplication) - - Note while png_set_text() will accept text, language, - and translated keywords that can be NULL pointers, the - structure returned by png_get_text will always contain - regular zero-terminated C strings. They might be - empty strings but they will never be NULL pointers. - - num_spalettes = png_get_sPLT(png_ptr, info_ptr, - &palette_ptr); - - num_spalettes - number of sPLT chunks read. - - palette_ptr - array of palette structures holding - contents of one or more sPLT chunks - read. - - png_get_oFFs(png_ptr, info_ptr, &offset_x, &offset_y, - &unit_type); - - offset_x - positive offset from the left edge - of the screen (can be negative) - - offset_y - positive offset from the top edge - of the screen (can be negative) - - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_get_pHYs(png_ptr, info_ptr, &res_x, &res_y, - &unit_type); - - res_x - pixels/unit physical resolution in - x direction - - res_y - pixels/unit physical resolution in - x direction - - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_get_sCAL(png_ptr, info_ptr, &unit, &width, - &height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - - height - height of a pixel in physical scale units - (width and height are doubles) - - png_get_sCAL_s(png_ptr, info_ptr, &unit, &width, - &height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - (expressed as a string) - - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - num_unknown_chunks = png_get_unknown_chunks(png_ptr, - info_ptr, &unknowns) - - unknowns - array of png_unknown_chunk - structures holding unknown chunks - - unknowns[i].name - name of unknown chunk - - unknowns[i].data - data of unknown chunk - - unknowns[i].size - size of unknown chunk's data - - unknowns[i].location - position of chunk in file - - The value of "i" corresponds to the order in which the - chunks were read from the PNG file or inserted with the - png_set_unknown_chunks() function. - - The value of "location" is a bitwise "or" of - - PNG_HAVE_IHDR (0x01) - PNG_HAVE_PLTE (0x02) - PNG_AFTER_IDAT (0x08) - -The data from the pHYs chunk can be retrieved in several convenient -forms: - - res_x = png_get_x_pixels_per_meter(png_ptr, - info_ptr) - - res_y = png_get_y_pixels_per_meter(png_ptr, - info_ptr) - - res_x_and_y = png_get_pixels_per_meter(png_ptr, - info_ptr) - - res_x = png_get_x_pixels_per_inch(png_ptr, - info_ptr) - - res_y = png_get_y_pixels_per_inch(png_ptr, - info_ptr) - - res_x_and_y = png_get_pixels_per_inch(png_ptr, - info_ptr) - - aspect_ratio = png_get_pixel_aspect_ratio(png_ptr, - info_ptr) - - Each of these returns 0 [signifying "unknown"] if - the data is not present or if res_x is 0; - res_x_and_y is 0 if res_x != res_y - - Note that because of the way the resolutions are - stored internally, the inch conversions won't - come out to exactly even number. For example, - 72 dpi is stored as 0.28346 pixels/meter, and - when this is retrieved it is 71.9988 dpi, so - be sure to round the returned value appropriately - if you want to display a reasonable-looking result. - -The data from the oFFs chunk can be retrieved in several convenient -forms: - - x_offset = png_get_x_offset_microns(png_ptr, info_ptr); - - y_offset = png_get_y_offset_microns(png_ptr, info_ptr); - - x_offset = png_get_x_offset_inches(png_ptr, info_ptr); - - y_offset = png_get_y_offset_inches(png_ptr, info_ptr); - - Each of these returns 0 [signifying "unknown" if both - x and y are 0] if the data is not present or if the - chunk is present but the unit is the pixel. The - remark about inexact inch conversions applies here - as well, because a value in inches can't always be - converted to microns and back without some loss - of precision. - -For more information, see the -PNG specification for chunk contents. Be careful with trusting -rowbytes, as some of the transformations could increase the space -needed to hold a row (expand, filler, gray_to_rgb, etc.). -See png_read_update_info(), below. - -A quick word about text_ptr and num_text. PNG stores comments in -keyword/text pairs, one pair per chunk, with no limit on the number -of text chunks, and a 2^31 byte limit on their size. While there are -suggested keywords, there is no requirement to restrict the use to these -strings. It is strongly suggested that keywords and text be sensible -to humans (that's the point), so don't use abbreviations. Non-printing -symbols are not allowed. See the PNG specification for more details. -There is also no requirement to have text after the keyword. - -Keywords should be limited to 79 Latin-1 characters without leading or -trailing spaces, but non-consecutive spaces are allowed within the -keyword. It is possible to have the same keyword any number of times. -The text_ptr is an array of png_text structures, each holding a -pointer to a language string, a pointer to a keyword and a pointer to -a text string. The text string, language code, and translated -keyword may be empty or NULL pointers. The keyword/text -pairs are put into the array in the order that they are received. -However, some or all of the text chunks may be after the image, so, to -make sure you have read all the text chunks, don't mess with these -until after you read the stuff after the image. This will be -mentioned again below in the discussion that goes with png_read_end(). - -.SS Input transformations - -After you've read the header information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. - -Transformations you request are ignored if they don't have any meaning for a -particular input data format. However some transformations can have an effect -as a result of a previous transformation. If you specify a contradictory set of -transformations, for example both adding and removing the alpha channel, you -cannot predict the final result. - -The color used for the transparency values should be supplied in the same -format/depth as the current image data. It is stored in the same format/depth -as the image data in a tRNS chunk, so this is what libpng expects for this data. - -The color used for the background value depends on the need_expand argument as -described below. - -Data will be decoded into the supplied row buffers packed into bytes -unless the library has been told to transform it into another format. -For example, 4 bit/pixel paletted or grayscale data will be returned -2 pixels/byte with the leftmost pixel in the high-order bits of the -byte, unless png_set_packing() is called. 8-bit RGB data will be stored -in RGB RGB RGB format unless png_set_filler() or png_set_add_alpha() -is called to insert filler bytes, either before or after each RGB triplet. -16-bit RGB data will be returned RRGGBB RRGGBB, with the most significant -byte of the color value first, unless png_set_scale_16() is called to -transform it to regular RGB RGB triplets, or png_set_filler() or -png_set_add alpha() is called to insert filler bytes, either before or -after each RRGGBB triplet. Similarly, 8-bit or 16-bit grayscale data can -be modified with png_set_filler(), png_set_add_alpha(), png_set_strip_16(), -or png_set_scale_16(). - -The following code transforms grayscale images of less than 8 to 8 bits, -changes paletted images to RGB, and adds a full alpha channel if there is -transparency information in a tRNS chunk. This is most useful on -grayscale images with bit depths of 2 or 4 or if there is a multiple-image -viewing application that wishes to treat all images in the same way. - - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(png_ptr); - - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png_ptr); - - if (color_type == PNG_COLOR_TYPE_GRAY && - bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png_ptr); - -The first two functions are actually aliases for png_set_expand(), added -in libpng version 1.0.4, with the function names expanded to improve code -readability. In some future version they may actually do different -things. - -As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was -added. It expands the sample depth without changing tRNS to alpha. - -As of libpng version 1.5.2, png_set_expand_16() was added. It behaves as -png_set_expand(); however, the resultant channels have 16 bits rather than 8. -Use this when the output color or gray channels are made linear to avoid fairly -severe accuracy loss. - - if (bit_depth < 16) - png_set_expand_16(png_ptr); - -PNG can have files with 16 bits per channel. If you only can handle -8 bits per channel, this will strip the pixels down to 8-bit. - - if (bit_depth == 16) -#if PNG_LIBPNG_VER >= 10504 - png_set_scale_16(png_ptr); -#else - png_set_strip_16(png_ptr); -#endif - -(The more accurate "png_set_scale_16()" API became available in libpng version -1.5.4). - -If you need to process the alpha channel on the image separately from the image -data (for example if you convert it to a bitmap mask) it is possible to have -libpng strip the channel leaving just RGB or gray data: - - if (color_type & PNG_COLOR_MASK_ALPHA) - png_set_strip_alpha(png_ptr); - -If you strip the alpha channel you need to find some other way of dealing with -the information. If, instead, you want to convert the image to an opaque -version with no alpha channel use png_set_background; see below. - -As of libpng version 1.5.2, almost all useful expansions are supported, the -major ommissions are conversion of grayscale to indexed images (which can be -done trivially in the application) and conversion of indexed to grayscale (which -can be done by a trivial manipulation of the palette.) - -In the following table, the 01 means grayscale with depth<8, 31 means -indexed with depth<8, other numerals represent the color type, "T" means -the tRNS chunk is present, A means an alpha channel is present, and O -means tRNS or alpha is present but all pixels in the image are opaque. - - FROM 01 31 0 0T 0O 2 2T 2O 3 3T 3O 4A 4O 6A 6O - TO - 01 - [G] - - - - - - - - - - - - - - 31 [Q] Q [Q] [Q] [Q] Q Q Q Q Q Q [Q] [Q] Q Q - 0 1 G + . . G G G G G G B B GB GB - 0T lt Gt t + . Gt G G Gt G G Bt Bt GBt GBt - 0O lt Gt t . + Gt Gt G Gt Gt G Bt Bt GBt GBt - 2 C P C C C + . . C - - CB CB B B - 2T Ct - Ct C C t + t - - - CBt CBt Bt Bt - 2O Ct - Ct C C t t + - - - CBt CBt Bt Bt - 3 [Q] p [Q] [Q] [Q] Q Q Q + . . [Q] [Q] Q Q - 3T [Qt] p [Qt][Q] [Q] Qt Qt Qt t + t [Qt][Qt] Qt Qt - 3O [Qt] p [Qt][Q] [Q] Qt Qt Qt t t + [Qt][Qt] Qt Qt - 4A lA G A T T GA GT GT GA GT GT + BA G GBA - 4O lA GBA A T T GA GT GT GA GT GT BA + GBA G - 6A CA PA CA C C A T tT PA P P C CBA + BA - 6O CA PBA CA C C A tT T PA P P CBA C BA + - -Within the matrix, - "+" identifies entries where 'from' and 'to' are the same. - "-" means the transformation is not supported. - "." means nothing is necessary (a tRNS chunk can just be ignored). - "t" means the transformation is obtained by png_set_tRNS. - "A" means the transformation is obtained by png_set_add_alpha(). - "X" means the transformation is obtained by png_set_expand(). - "1" means the transformation is obtained by - png_set_expand_gray_1_2_4_to_8() (and by png_set_expand() - if there is no transparency in the original or the final - format). - "C" means the transformation is obtained by png_set_gray_to_rgb(). - "G" means the transformation is obtained by png_set_rgb_to_gray(). - "P" means the transformation is obtained by - png_set_expand_palette_to_rgb(). - "p" means the transformation is obtained by png_set_packing(). - "Q" means the transformation is obtained by png_set_quantize(). - "T" means the transformation is obtained by - png_set_tRNS_to_alpha(). - "B" means the transformation is obtained by - png_set_background(), or png_strip_alpha(). - -When an entry has multiple transforms listed all are required to cause the -right overall transformation. When two transforms are separated by a comma -either will do the job. When transforms are enclosed in [] the transform should -do the job but this is currently unimplemented - a different format will result -if the suggested transformations are used. - -In PNG files, the alpha channel in an image -is the level of opacity. If you need the alpha channel in an image to -be the level of transparency instead of opacity, you can invert the -alpha channel (or the tRNS chunk data) after it's read, so that 0 is -fully opaque and 255 (in 8-bit or paletted images) or 65535 (in 16-bit -images) is fully transparent, with - - png_set_invert_alpha(png_ptr); - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit -files. This code expands to 1 pixel per byte without changing the -values of the pixels: - - if (bit_depth < 8) - png_set_packing(png_ptr); - -PNG files have possible bit depths of 1, 2, 4, 8, and 16. All pixels -stored in a PNG image have been "scaled" or "shifted" up to the next -higher possible bit depth (e.g. from 5 bits/sample in the range [0,31] -to 8 bits/sample in the range [0, 255]). However, it is also possible -to convert the PNG pixel data back to the original bit depth of the -image. This call reduces the pixels back down to the original bit depth: - - png_color_8p sig_bit; - - if (png_get_sBIT(png_ptr, info_ptr, &sig_bit)) - png_set_shift(png_ptr, sig_bit); - -PNG files store 3-color pixels in red, green, blue order. This code -changes the storage of the pixels to blue, green, red: - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_bgr(png_ptr); - -PNG files store RGB pixels packed into 3 or 6 bytes. This code expands them -into 4 or 8 bytes for windowing systems that need them in this format: - - if (color_type == PNG_COLOR_TYPE_RGB) - png_set_filler(png_ptr, filler, PNG_FILLER_BEFORE); - -where "filler" is the 8 or 16-bit number to fill with, and the location is -either PNG_FILLER_BEFORE or PNG_FILLER_AFTER, depending upon whether -you want the filler before the RGB or after. This transformation -does not affect images that already have full alpha channels. To add an -opaque alpha channel, use filler=0xff or 0xffff and PNG_FILLER_AFTER which -will generate RGBA pixels. - -Note that png_set_filler() does not change the color type. If you want -to do that, you can add a true alpha channel with - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY) - png_set_add_alpha(png_ptr, filler, PNG_FILLER_AFTER); - -where "filler" contains the alpha value to assign to each pixel. -This function was added in libpng-1.2.7. - -If you are reading an image with an alpha channel, and you need the -data as ARGB instead of the normal PNG format RGBA: - - if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_swap_alpha(png_ptr); - -For some uses, you may want a grayscale image to be represented as -RGB. This code will do that conversion: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_gray_to_rgb(png_ptr); - -Conversely, you can convert an RGB or RGBA image to grayscale or grayscale -with alpha. - - if (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) - png_set_rgb_to_gray(png_ptr, error_action, - double red_weight, double green_weight); - - error_action = 1: silently do the conversion - - error_action = 2: issue a warning if the original - image has any pixel where - red != green or red != blue - - error_action = 3: issue an error and abort the - conversion if the original - image has any pixel where - red != green or red != blue - - red_weight: weight of red component - - green_weight: weight of green component - If either weight is negative, default - weights are used. - -In the corresponding fixed point API the red_weight and green_weight values are -simply scaled by 100,000: - - png_set_rgb_to_gray(png_ptr, error_action, - png_fixed_point red_weight, - png_fixed_point green_weight); - -If you have set error_action = 1 or 2, you can -later check whether the image really was gray, after processing -the image rows, with the png_get_rgb_to_gray_status(png_ptr) function. -It will return a png_byte that is zero if the image was gray or -1 if there were any non-gray pixels. Background and sBIT data -will be silently converted to grayscale, using the green channel -data for sBIT, regardless of the error_action setting. - -The default values come from the PNG file cHRM chunk if present; otherwise, the -defaults correspond to the ITU-R recommendation 709, and also the sRGB color -space, as recommended in the Charles Poynton's Colour FAQ, -, in section 9: - - - - Y = 0.2126 * R + 0.7152 * G + 0.0722 * B - -Previous versions of this document, 1998 through 2002, recommended a slightly -different formula: - - Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - -Libpng uses an integer approximation: - - Y = (6968 * R + 23434 * G + 2366 * B)/32768 - -The calculation is done in a linear colorspace, if the image gamma -can be determined. - -The png_set_background() function has been described already; it tells libpng to -composite images with alpha or simple transparency against the supplied -background color. For compatibility with versions of libpng earlier than -libpng-1.5.4 it is recommended that you call the function after reading the file -header, even if you don't want to use the color in a bKGD chunk, if one exists. - -If the PNG file contains a bKGD chunk (PNG_INFO_bKGD valid), -you may use this color, or supply another color more suitable for -the current display (e.g., the background color from a web page). You -need to tell libpng how the color is represented, both the format of the -component values in the color (the number of bits) and the gamma encoding of the -color. The function takes two arguments, background_gamma_mode and need_expand -to convey this information; however, only two combinations are likely to be -useful: - - png_color_16 my_background; - png_color_16p image_background; - - if (png_get_bKGD(png_ptr, info_ptr, &image_background)) - png_set_background(png_ptr, image_background, - PNG_BACKGROUND_GAMMA_FILE, 1/*needs to be expanded*/, 1); - else - png_set_background(png_ptr, &my_background, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*do not expand*/, 1); - -The second call was described above - my_background is in the format of the -final, display, output produced by libpng. Because you now know the format of -the PNG it is possible to avoid the need to choose either 8-bit or 16-bit -output and to retain palette images (the palette colors will be modified -appropriately and the tRNS chunk removed.) However, if you are doing this, -take great care not to ask for transformations without checking first that -they apply! - -In the first call the background color has the original bit depth and color type -of the PNG file. So, for palette images the color is supplied as a palette -index and for low bit greyscale images the color is a reduced bit value in -image_background->gray. - -If you didn't call png_set_gamma() before reading the file header, for example -if you need your code to remain compatible with older versions of libpng prior -to libpng-1.5.4, this is the place to call it. - -Do not call it if you called png_set_alpha_mode(); doing so will damage the -settings put in place by png_set_alpha_mode(). (If png_set_alpha_mode() is -supported then you can certainly do png_set_gamma() before reading the PNG -header.) - -This API unconditionally sets the screen and file gamma values, so it will -override the value in the PNG file unless it is called before the PNG file -reading starts. For this reason you must always call it with the PNG file -value when you call it in this position: - - if (png_get_gAMA(png_ptr, info_ptr, &file_gamma)) - png_set_gamma(png_ptr, screen_gamma, file_gamma); - - else - png_set_gamma(png_ptr, screen_gamma, 0.45455); - -If you need to reduce an RGB file to a paletted file, or if a paletted -file has more entries then will fit on your screen, png_set_quantize() -will do that. Note that this is a simple match quantization that merely -finds the closest color available. This should work fairly well with -optimized palettes, but fairly badly with linear color cubes. If you -pass a palette that is larger than maximum_colors, the file will -reduce the number of colors in the palette so it will fit into -maximum_colors. If there is a histogram, libpng will use it to make -more intelligent choices when reducing the palette. If there is no -histogram, it may not do as good a job. - - if (color_type & PNG_COLOR_MASK_COLOR) - { - if (png_get_valid(png_ptr, info_ptr, - PNG_INFO_PLTE)) - { - png_uint_16p histogram = NULL; - - png_get_hIST(png_ptr, info_ptr, - &histogram); - png_set_quantize(png_ptr, palette, num_palette, - max_screen_colors, histogram, 1); - } - - else - { - png_color std_color_cube[MAX_SCREEN_COLORS] = - { ... colors ... }; - - png_set_quantize(png_ptr, std_color_cube, - MAX_SCREEN_COLORS, MAX_SCREEN_COLORS, - NULL,0); - } - } - -PNG files describe monochrome as black being zero and white being one. -The following code will reverse this (make black be one and white be -zero): - - if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) - png_set_invert_mono(png_ptr); - -This function can also be used to invert grayscale and gray-alpha images: - - if (color_type == PNG_COLOR_TYPE_GRAY || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_invert_mono(png_ptr); - -PNG files store 16-bit pixels in network byte order (big-endian, -ie. most significant bits first). This code changes the storage to the -other way (little-endian, i.e. least significant bits first, the -way PCs store them): - - if (bit_depth == 16) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_read_user_transform_fn(png_ptr, - read_transform_fn); - -You must supply the function - - void read_transform_fn(png_structp png_ptr, png_row_infop - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -after all of the other transformations have been processed. Take care with -interlaced images if you do the interlace yourself - the width of the row is the -width in 'row_info', not the overall image width. - -If supported, libpng provides two information routines that you can use to find -where you are in processing the image: - - png_get_current_pass_number(png_structp png_ptr); - png_get_current_row_number(png_structp png_ptr); - -Don't try using these outside a transform callback - firstly they are only -supported if user transforms are supported, secondly they may well return -unexpected results unless the row is actually being processed at the moment they -are called. - -With interlaced -images the value returned is the row in the input sub-image image. Use -PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to -find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). - -The discussion of interlace handling above contains more information on how to -use these values. - -You can also set up a pointer to a user structure for use by your -callback function, and you can inform libpng that your transform -function will change the number of channels or bit depth with the -function - - png_set_user_transform_info(png_ptr, user_ptr, - user_depth, user_channels); - -The user's application, not libpng, is responsible for allocating and -freeing any memory required for the user structure. - -You can retrieve the pointer via the function -png_get_user_transform_ptr(). For example: - - voidp read_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -The last thing to handle is interlacing; this is covered in detail below, -but you must call the function here if you want libpng to handle expansion -of the interlaced image. - - number_of_passes = png_set_interlace_handling(png_ptr); - -After setting the transformations, libpng can update your png_info -structure to reflect any transformations you've requested with this -call. - - png_read_update_info(png_ptr, info_ptr); - -This is most useful to update the info structure's rowbytes -field so you can use it to allocate your image memory. This function -will also update your palette with the correct screen_gamma and -background if these have been given with the calls above. You may -only call png_read_update_info() once with a particular info_ptr. - -After you call png_read_update_info(), you can allocate any -memory you need to hold the image. The row data is simply -raw byte data for all forms of images. As the actual allocation -varies among applications, no example will be given. If you -are allocating one large chunk, you will need to build an -array of pointers to each row, as it will be needed for some -of the functions below. - -Remember: Before you call png_read_update_info(), the png_get_*() -functions return the values corresponding to the original PNG image. -After you call png_read_update_info the values refer to the image -that libpng will output. Consequently you must call all the png_set_ -functions before you call png_read_update_info(). This is particularly -important for png_set_interlace_handling() - if you are going to call -png_read_update_info() you must call png_set_interlace_handling() before -it unless you want to receive interlaced output. - -.SS Reading image data - -After you've allocated memory, you can read the image data. -The simplest way to do this is in one function call. If you are -allocating enough memory to hold the whole image, you can just -call png_read_image() and libpng will read in all the image data -and put it in the memory area supplied. You will need to pass in -an array of pointers to each row. - -This function automatically handles interlacing, so you don't -need to call png_set_interlace_handling() (unless you call -png_read_update_info()) or call this function multiple times, or any -of that other stuff necessary with png_read_rows(). - - png_read_image(png_ptr, row_pointers); - -where row_pointers is: - - png_bytep row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to read in the whole image at once, you can -use png_read_rows() instead. If there is no interlacing (check -interlace_type == PNG_INTERLACE_NONE), this is simple: - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -where row_pointers is the same as in the png_read_image() call. - -If you are doing this just one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - png_read_row(png_ptr, row_pointer, NULL); - -If the file is interlaced (interlace_type != 0 in the IHDR chunk), things -get somewhat harder. The only current (PNG Specification version 1.2) -interlacing type for PNG is (interlace_type == PNG_INTERLACE_ADAM7); -a somewhat complicated 2D interlace scheme, known as Adam7, that -breaks down an image into seven smaller images of varying size, based -on an 8x8 grid. This number is defined (from libpng 1.5) as -PNG_INTERLACE_ADAM7_PASSES in png.h - -libpng can fill out those images or it can give them to you "as is". -It is almost always better to have libpng handle the interlacing for you. -If you want the images filled out, there are two ways to do that. The one -mentioned in the PNG specification is to expand each pixel to cover -those pixels that have not been read yet (the "rectangle" method). -This results in a blocky image for the first pass, which gradually -smooths out as more pixels are read. The other method is the "sparkle" -method, where pixels are drawn only in their final locations, with the -rest of the image remaining whatever colors they were initialized to -before the start of the read. The first method usually looks better, -but tends to be slower, as there are more pixels to put in the rows. - -If, as is likely, you want libpng to expand the images, call this before -calling png_start_read_image() or png_read_update_info(): - - if (interlace_type == PNG_INTERLACE_ADAM7) - number_of_passes - = png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this is seven, -but may change if another interlace type is added. This function can be -called even if the file is not interlaced, where it will return one pass. -You then need to read the whole image 'number_of_passes' times. Each time -will distribute the pixels from the current pass to the correct place in -the output image, so you need to supply the same rows to png_read_rows in -each pass. - -If you are not going to display the image after each pass, but are -going to wait until the entire image is read in, use the sparkle -effect. This effect is faster and the end result of either method -is exactly the same. If you are planning on displaying the image -after each pass, the "rectangle" effect is generally considered the -better looking one. - -If you only want the "sparkle" effect, just call png_read_rows() as -normal, with the third parameter NULL. Make sure you make pass over -the image number_of_passes times, and you don't change the data in the -rows between calls. You can change the locations of the data, just -not the data. Each pass only writes the pixels appropriate for that -pass, and assumes the data from previous passes is still valid. - - png_read_rows(png_ptr, row_pointers, NULL, - number_of_rows); - -If you only want the first effect (the rectangles), do the same as -before except pass the row buffer in the third parameter, and leave -the second parameter NULL. - - png_read_rows(png_ptr, NULL, row_pointers, - number_of_rows); - -If you don't want libpng to handle the interlacing details, just call -png_read_rows() PNG_INTERLACE_ADAM7_PASSES times to read in all the images. -Each of the images is a valid image by itself; however, you will almost -certainly need to distribute the pixels from each sub-image to the -correct place. This is where everything gets very tricky. - -If you want to retrieve the separate images you must pass the correct -number of rows to each successive call of png_read_rows(). The calculation -gets pretty complicated for small images, where some sub-images may -not even exist because either their width or height ends up zero. -libpng provides two macros to help you in 1.5 and later versions: - - png_uint_32 width = PNG_PASS_COLS(image_width, pass_number); - png_uint_32 height = PNG_PASS_ROWS(image_height, pass_number); - -Respectively these tell you the width and height of the sub-image -corresponding to the numbered pass. 'pass' is in in the range 0 to 6 - -this can be confusing because the specification refers to the same passes -as 1 to 7! Be careful, you must check both the width and height before -calling png_read_rows() and not call it for that pass if either is zero. - -You can, of course, read each sub-image row by row. If you want to -produce optimal code to make a pixel-by-pixel transformation of an -interlaced image this is the best approach; read each row of each pass, -transform it, and write it out to a new interlaced image. - -If you want to de-interlace the image yourself libpng provides further -macros to help that tell you where to place the pixels in the output image. -Because the interlacing scheme is rectangular - sub-image pixels are always -arranged on a rectangular grid - all you need to know for each pass is the -starting column and row in the output image of the first pixel plus the -spacing between each pixel. As of libpng 1.5 there are four macros to -retrieve this information: - - png_uint_32 x = PNG_PASS_START_COL(pass); - png_uint_32 y = PNG_PASS_START_ROW(pass); - png_uint_32 xStep = 1U << PNG_PASS_COL_SHIFT(pass); - png_uint_32 yStep = 1U << PNG_PASS_ROW_SHIFT(pass); - -These allow you to write the obvious loop: - - png_uint_32 input_y = 0; - png_uint_32 output_y = PNG_PASS_START_ROW(pass); - - while (output_y < output_image_height) - { - png_uint_32 input_x = 0; - png_uint_32 output_x = PNG_PASS_START_COL(pass); - - while (output_x < output_image_width) - { - image[output_y][output_x] = - subimage[pass][input_y][input_x++]; - - output_x += xStep; - } - - ++input_y; - output_y += yStep; - } - -Notice that the steps between successive output rows and columns are -returned as shifts. This is possible because the pixels in the subimages -are always a power of 2 apart - 1, 2, 4 or 8 pixels - in the original -image. In practice you may need to directly calculate the output coordinate -given an input coordinate. libpng provides two further macros for this -purpose: - - png_uint_32 output_x = PNG_COL_FROM_PASS_COL(input_x, pass); - png_uint_32 output_y = PNG_ROW_FROM_PASS_ROW(input_y, pass); - -Finally a pair of macros are provided to tell you if a particular image -row or column appears in a given pass: - - int col_in_pass = PNG_COL_IN_INTERLACE_PASS(output_x, pass); - int row_in_pass = PNG_ROW_IN_INTERLACE_PASS(output_y, pass); - -Bear in mind that you will probably also need to check the width and height -of the pass in addition to the above to be sure the pass even exists! - -With any luck you are convinced by now that you don't want to do your own -interlace handling. In reality normally the only good reason for doing this -is if you are processing PNG files on a pixel-by-pixel basis and don't want -to load the whole file into memory when it is interlaced. - -libpng includes a test program, pngvalid, that illustrates reading and -writing of interlaced images. If you can't get interlacing to work in your -code and don't want to leave it to libpng (the recommended approach), see -how pngvalid.c does it. - -.SS Finishing a sequential read - -After you are finished reading the image through the -low-level interface, you can finish reading the file. - -If you want to use a different crc action for handling CRC errors in -chunks after the image data, you can call png_set_crc_action() -again at this point. - -If you are interested in comments or time, which may be stored either -before or after the image data, you should pass the separate png_info -struct if you want to keep the comments from before and after the image -separate. - - png_infop end_info = png_create_info_struct(png_ptr); - - if (!end_info) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - png_read_end(png_ptr, end_info); - -If you are not interested, you should still call png_read_end() -but you can pass NULL, avoiding the need to create an end_info structure. -If you do this, libpng will not process any chunks after IDAT other than -skipping over them and perhaps (depending on whether you have called -png_set_crc_action) checking their CRCs while looking for the IEND chunk. - - png_read_end(png_ptr, (png_infop)NULL); - -If you don't call png_read_end(), then your file pointer will be -left pointing to the first chunk after the last IDAT, which is probably -not what you want if you expect to read something beyond the end of -the PNG datastream. - -When you are done, you can free all memory allocated by libpng like this: - - png_destroy_read_struct(&png_ptr, &info_ptr, - &end_info); - -or, if you didn't create an end_info structure, - - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - - seq - sequence number of item to be freed - (\-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those cases do nothing. -The "seq" parameter is ignored if only one item of the selected data -type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items -are allowed for the data type identified in the mask, such as text or -sPLT, only the n'th item in the structure is freed, where n is "seq". - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_calloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - - mask - which data elements are affected - same choices as in png_free_data() - -This function only affects data that has already been allocated. -You can call this function after reading the PNG data but before calling -any png_set_*() functions, to control whether the user or the png_set_*() -function is responsible for freeing any existing data that might be present, -and again after the png_set_*() functions to control whether the user -or png_destroy_*() is supposed to free the data. When the user assumes -responsibility for libpng-allocated data, the application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_calloc() to allocate it. - -If you allocated your row_pointers in a single block, as suggested above in -the description of the high level read interface, you must not transfer -responsibility for freeing it to the png_set_rows or png_read_destroy function, -because they would also try to free the individual row_pointers[i]. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. - -The png_free_data() function will turn off the "valid" flag for anything -it frees. If you need to turn the flag off for a chunk that was freed by -your application instead of by libpng, you can use - - png_set_invalid(png_ptr, info_ptr, mask); - - mask - identifies the chunks to be made invalid, - containing the bitwise OR of one or - more of - PNG_INFO_gAMA, PNG_INFO_sBIT, - PNG_INFO_cHRM, PNG_INFO_PLTE, - PNG_INFO_tRNS, PNG_INFO_bKGD, - PNG_INFO_hIST, PNG_INFO_pHYs, - PNG_INFO_oFFs, PNG_INFO_tIME, - PNG_INFO_pCAL, PNG_INFO_sRGB, - PNG_INFO_iCCP, PNG_INFO_sPLT, - PNG_INFO_sCAL, PNG_INFO_IDAT - -For a more compact example of reading a PNG image, see the file example.c. - -.SS Reading PNG files progressively - -The progressive reader is slightly different from the non-progressive -reader. Instead of calling png_read_info(), png_read_rows(), and -png_read_end(), you make one call to png_process_data(), which calls -callbacks when it has the info, a row, or the end of the image. You -set up these callbacks with png_set_progressive_read_fn(). You don't -have to worry about the input/output functions of libpng, as you are -giving the library the data directly in png_process_data(). I will -assume that you have read the section on reading PNG files above, -so I will only highlight the differences (although I will show -all of the code). - -png_structp png_ptr; -png_infop info_ptr; - - /* An example code fragment of how you would - initialize the progressive reader in your - application. */ - int - initialize_png_reader() - { - png_ptr = png_create_read_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - info_ptr = png_create_info_struct(png_ptr); - - if (!info_ptr) - { - png_destroy_read_struct(&png_ptr, - (png_infopp)NULL, (png_infopp)NULL); - return (ERROR); - } - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new. You can provide functions - to be called when the header info is valid, - when each row is completed, and when the image - is finished. If you aren't using all functions, - you can specify NULL parameters. Even when all - three functions are NULL, you need to call - png_set_progressive_read_fn(). You can use - any struct as the user_ptr (cast to a void pointer - for the function call), and retrieve the pointer - from inside the callbacks using the function - - png_get_progressive_ptr(png_ptr); - - which will return a void pointer, which you have - to cast appropriately. - */ - png_set_progressive_read_fn(png_ptr, (void *)user_ptr, - info_callback, row_callback, end_callback); - - return 0; - } - - /* A code fragment that you call as you receive blocks - of data */ - int - process_data(png_bytep buffer, png_uint_32 length) - { - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_read_struct(&png_ptr, &info_ptr, - (png_infopp)NULL); - return (ERROR); - } - - /* This one's new also. Simply give it a chunk - of data from the file stream (in order, of - course). On machines with segmented memory - models machines, don't give it any more than - 64K. The library seems to run fine with sizes - of 4K. Although you can give it much less if - necessary (I assume you can give it chunks of - 1 byte, I haven't tried less then 256 bytes - yet). When this function returns, you may - want to display any rows that were generated - in the row callback if you don't already do - so there. - */ - png_process_data(png_ptr, info_ptr, buffer, length); - - /* At this point you can call png_process_data_skip if - you want to handle data the library will skip yourself; - it simply returns the number of bytes to skip (and stops - libpng skipping that number of bytes on the next - png_process_data call). - return 0; - } - - /* This function is called (as set by - png_set_progressive_read_fn() above) when enough data - has been supplied so all of the header has been - read. - */ - void - info_callback(png_structp png_ptr, png_infop info) - { - /* Do any setup here, including setting any of - the transformations mentioned in the Reading - PNG files section. For now, you _must_ call - either png_start_read_image() or - png_read_update_info() after all the - transformations are set (even if you don't set - any). You may start getting rows before - png_process_data() returns, so this is your - last chance to prepare for that. - - This is where you turn on interlace handling, - assuming you don't want to do it yourself. - - If you need to you can stop the processing of - your original input data at this point by calling - png_process_data_pause. This returns the number - of unprocessed bytes from the last png_process_data - call - it is up to you to ensure that the next call - sees these bytes again. If you don't want to bother - with this you can get libpng to cache the unread - bytes by setting the 'save' parameter (see png.h) but - then libpng will have to copy the data internally. - */ - } - - /* This function is called when each row of image - data is complete */ - void - row_callback(png_structp png_ptr, png_bytep new_row, - png_uint_32 row_num, int pass) - { - /* If the image is interlaced, and you turned - on the interlace handler, this function will - be called for every row in every pass. Some - of these rows will not be changed from the - previous pass. When the row is not changed, - the new_row variable will be NULL. The rows - and passes are called in order, so you don't - really need the row_num and pass, but I'm - supplying them because it may make your life - easier. - - If you did not turn on interlace handling then - the callback is called for each row of each - sub-image when the image is interlaced. In this - case 'row_num' is the row in the sub-image, not - the row in the output image as it is in all other - cases. - - For the non-NULL rows of interlaced images when - you have switched on libpng interlace handling, - you must call png_progressive_combine_row() - passing in the row and the old row. You can - call this function for NULL rows (it will just - return) and for non-interlaced images (it just - does the memcpy for you) if it will make the - code easier. Thus, you can just do this for - all cases if you switch on interlace handling; - */ - - png_progressive_combine_row(png_ptr, old_row, - new_row); - - /* where old_row is what was displayed - previously for the row. Note that the first - pass (pass == 0, really) will completely cover - the old row, so the rows do not have to be - initialized. After the first pass (and only - for interlaced images), you will have to pass - the current row, and the function will combine - the old row and the new row. - - You can also call png_process_data_pause in this - callback - see above. - */ - } - - void - end_callback(png_structp png_ptr, png_infop info) - { - /* This function is called after the whole image - has been read, including any chunks after the - image (up to and including the IEND). You - will usually have the same info chunk as you - had in the header, although some data may have - been added to the comments and time fields. - - Most people won't do much here, perhaps setting - a flag that marks the image as finished. - */ - } - - - -.SH IV. Writing - -Much of this is very similar to reading. However, everything of -importance is repeated here, so you won't have to constantly look -back up in the reading section to understand writing. - -.SS Setup - -You will want to do the I/O initialization before you get into libpng, -so if it doesn't work, you don't have anything to undo. If you are not -using the standard I/O functions, you will need to replace them with -custom writing functions. See the discussion under Customizing libpng. - - FILE *fp = fopen(file_name, "wb"); - - if (!fp) - return (ERROR); - -Next, png_struct and png_info need to be allocated and initialized. -As these can be both relatively large, you may not want to store these -on the stack, unless you have stack space to spare. Of course, you -will want to check if they return NULL. If you are also reading, -you won't want to name your read structure and your write structure -both "png_ptr"; you can call them anything you like, such as -"read_ptr" and "write_ptr". Look at pngtest.c, for example. - - png_structp png_ptr = png_create_write_struct - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn); - - if (!png_ptr) - return (ERROR); - - png_infop info_ptr = png_create_info_struct(png_ptr); - if (!info_ptr) - { - png_destroy_write_struct(&png_ptr, - (png_infopp)NULL); - return (ERROR); - } - -If you want to use your own memory allocation routines, -define PNG_USER_MEM_SUPPORTED and use -png_create_write_struct_2() instead of png_create_write_struct(): - - png_structp png_ptr = png_create_write_struct_2 - (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr, - user_error_fn, user_warning_fn, (png_voidp) - user_mem_ptr, user_malloc_fn, user_free_fn); - -After you have these structures, you will need to set up the -error handling. When libpng encounters an error, it expects to -longjmp() back to your routine. Therefore, you will need to call -setjmp() and pass the png_jmpbuf(png_ptr). If you -write the file from different routines, you will need to update -the png_jmpbuf(png_ptr) every time you enter a new routine that will -call a png_*() function. See your documentation of setjmp/longjmp -for your compiler for more information on setjmp/longjmp. See -the discussion on libpng error handling in the Customizing Libpng -section below for more information on the libpng error handling. - - if (setjmp(png_jmpbuf(png_ptr))) - { - png_destroy_write_struct(&png_ptr, &info_ptr); - fclose(fp); - return (ERROR); - } - ... - return; - -If you would rather avoid the complexity of setjmp/longjmp issues, -you can compile libpng with PNG_NO_SETJMP, in which case -errors will result in a call to PNG_ABORT() which defaults to abort(). - -You can #define PNG_ABORT() to a function that does something -more useful than abort(), as long as your function does not -return. - -Checking for invalid palette index on write was added at libpng -1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues -a benign error. This is enabled by default because this condition is an -error according to the PNG specification, Clause 11.3.2, but the error can -be ignored in each png_ptr with - - png_set_check_for_invalid_index(png_ptr, 0); - -If the error is ignored, or if png_benign_error() treats it as a warning, -any invalid pixels are written as-is by the encoder, resulting in an -invalid PNG datastream as output. In this case the application is -responsible for ensuring that the pixel indexes are in range when it writes -a PLTE chunk with fewer entries than the bit depth would allow. - -Now you need to set up the output code. The default for libpng is to -use the C function fwrite(). If you use this, you will need to pass a -valid FILE * in the function png_init_io(). Be sure that the file is -opened in binary mode. Again, if you wish to handle writing data in -another way, see the discussion on libpng I/O handling in the Customizing -Libpng section below. - - png_init_io(png_ptr, fp); - -If you are embedding your PNG into a datastream such as MNG, and don't -want libpng to write the 8-byte signature, or if you have already -written the signature in your application, use - - png_set_sig_bytes(png_ptr, 8); - -to inform libpng that it should not write a signature. - -.SS Write callbacks - -At this point, you can set up a callback function that will be -called after each row has been written, which you can use to control -a progress meter or the like. It's demonstrated in pngtest.c. -You must supply a function - - void write_row_callback(png_structp png_ptr, png_uint_32 row, - int pass); - { - /* put your code here */ - } - -(You can give it another name that you like instead of "write_row_callback") - -To inform libpng about your function, use - - png_set_write_status_fn(png_ptr, write_row_callback); - -When this function is called the row has already been completely processed and -it has also been written out. The 'row' and 'pass' refer to the next row to be -handled. For the -non-interlaced case the row that was just handled is simply one less than the -passed in row number, and pass will always be 0. For the interlaced case the -same applies unless the row value is 0, in which case the row just handled was -the last one from one of the preceding passes. Because interlacing may skip a -pass you cannot be sure that the preceding pass is just 'pass\-1', if you really -need to know what the last pass is record (row,pass) from the callback and use -the last recorded value each time. - -As with the user transform you can find the output row using the -PNG_ROW_FROM_PASS_ROW macro. - -You now have the option of modifying how the compression library will -run. The following functions are mainly for testing, but may be useful -in some cases, like if you need to write PNG files extremely fast and -are willing to give up some compression, or if you want to get the -maximum possible compression at the expense of slower writing. If you -have no special needs in this area, let the library do what it wants by -not calling this function at all, as it has been tuned to deliver a good -speed/compression ratio. The second parameter to png_set_filter() is -the filter method, for which the only valid values are 0 (as of the -July 1999 PNG specification, version 1.2) or 64 (if you are writing -a PNG datastream that is to be embedded in a MNG datastream). The third -parameter is a flag that indicates which filter type(s) are to be tested -for each scanline. See the PNG specification for details on the specific -filter types. - - - /* turn on or off filtering, and/or choose - specific filters. You can use either a single - PNG_FILTER_VALUE_NAME or the bitwise OR of one - or more PNG_FILTER_NAME masks. - */ - png_set_filter(png_ptr, 0, - PNG_FILTER_NONE | PNG_FILTER_VALUE_NONE | - PNG_FILTER_SUB | PNG_FILTER_VALUE_SUB | - PNG_FILTER_UP | PNG_FILTER_VALUE_UP | - PNG_FILTER_AVG | PNG_FILTER_VALUE_AVG | - PNG_FILTER_PAETH | PNG_FILTER_VALUE_PAETH| - PNG_ALL_FILTERS); - -If an application wants to start and stop using particular filters during -compression, it should start out with all of the filters (to ensure that -the previous row of pixels will be stored in case it's needed later), -and then add and remove them after the start of compression. - -If you are writing a PNG datastream that is to be embedded in a MNG -datastream, the second parameter can be either 0 or 64. - -The png_set_compression_*() functions interface to the zlib compression -library, and should mostly be ignored unless you really know what you are -doing. The only generally useful call is png_set_compression_level() -which changes how much time zlib spends on trying to compress the image -data. See the Compression Library (zlib.h and algorithm.txt, distributed -with zlib) for details on the compression levels. - - #include zlib.h - - /* Set the zlib compression level */ - png_set_compression_level(png_ptr, - Z_BEST_COMPRESSION); - - /* Set other zlib parameters for compressing IDAT */ - png_set_compression_mem_level(png_ptr, 8); - png_set_compression_strategy(png_ptr, - Z_DEFAULT_STRATEGY); - png_set_compression_window_bits(png_ptr, 15); - png_set_compression_method(png_ptr, 8); - png_set_compression_buffer_size(png_ptr, 8192) - - /* Set zlib parameters for text compression - * If you don't call these, the parameters - * fall back on those defined for IDAT chunks - */ - png_set_text_compression_mem_level(png_ptr, 8); - png_set_text_compression_strategy(png_ptr, - Z_DEFAULT_STRATEGY); - png_set_text_compression_window_bits(png_ptr, 15); - png_set_text_compression_method(png_ptr, 8); - -.SS Setting the contents of info for output - -You now need to fill in the png_info structure with all the data you -wish to write before the actual image. Note that the only thing you -are allowed to write after the image is the text chunks and the time -chunk (as of PNG Specification 1.2, anyway). See png_write_end() and -the latest PNG specification for more information on that. If you -wish to write them before the image, fill them in now, and flag that -data as being valid. If you want to wait until after the data, don't -fill them until png_write_end(). For all the fields in png_info and -their data types, see png.h. For explanations of what the fields -contain, see the PNG specification. - -Some of the more important parts of the png_info are: - - png_set_IHDR(png_ptr, info_ptr, width, height, - bit_depth, color_type, interlace_type, - compression_type, filter_method) - - width - holds the width of the image - in pixels (up to 2^31). - - height - holds the height of the image - in pixels (up to 2^31). - - bit_depth - holds the bit depth of one of the - image channels. - (valid values are 1, 2, 4, 8, 16 - and depend also on the - color_type. See also significant - bits (sBIT) below). - - color_type - describes which color/alpha - channels are present. - PNG_COLOR_TYPE_GRAY - (bit depths 1, 2, 4, 8, 16) - PNG_COLOR_TYPE_GRAY_ALPHA - (bit depths 8, 16) - PNG_COLOR_TYPE_PALETTE - (bit depths 1, 2, 4, 8) - PNG_COLOR_TYPE_RGB - (bit_depths 8, 16) - PNG_COLOR_TYPE_RGB_ALPHA - (bit_depths 8, 16) - - PNG_COLOR_MASK_PALETTE - PNG_COLOR_MASK_COLOR - PNG_COLOR_MASK_ALPHA - - interlace_type - PNG_INTERLACE_NONE or - PNG_INTERLACE_ADAM7 - - compression_type - (must be - PNG_COMPRESSION_TYPE_DEFAULT) - - filter_method - (must be PNG_FILTER_TYPE_DEFAULT - or, if you are writing a PNG to - be embedded in a MNG datastream, - can also be - PNG_INTRAPIXEL_DIFFERENCING) - -If you call png_set_IHDR(), the call must appear before any of the -other png_set_*() functions, because they might require access to some of -the IHDR settings. The remaining png_set_*() functions can be called -in any order. - -If you wish, you can reset the compression_type, interlace_type, or -filter_method later by calling png_set_IHDR() again; if you do this, the -width, height, bit_depth, and color_type must be the same in each call. - - png_set_PLTE(png_ptr, info_ptr, palette, - num_palette); - - palette - the palette for the file - (array of png_color) - num_palette - number of entries in the palette - - png_set_gAMA(png_ptr, info_ptr, file_gamma); - png_set_gAMA_fixed(png_ptr, info_ptr, int_file_gamma); - - file_gamma - the gamma at which the image was - created (PNG_INFO_gAMA) - - int_file_gamma - 100,000 times the gamma at which - the image was created - - png_set_cHRM(png_ptr, info_ptr, white_x, white_y, red_x, red_y, - green_x, green_y, blue_x, blue_y) - png_set_cHRM_XYZ(png_ptr, info_ptr, red_X, red_Y, red_Z, green_X, - green_Y, green_Z, blue_X, blue_Y, blue_Z) - png_set_cHRM_fixed(png_ptr, info_ptr, int_white_x, int_white_y, - int_red_x, int_red_y, int_green_x, int_green_y, - int_blue_x, int_blue_y) - png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, int_red_X, int_red_Y, - int_red_Z, int_green_X, int_green_Y, int_green_Z, - int_blue_X, int_blue_Y, int_blue_Z) - - {white,red,green,blue}_{x,y} - A color space encoding specified using the chromaticities - of the end points and the white point. - - {red,green,blue}_{X,Y,Z} - A color space encoding specified using the encoding end - points - the CIE tristimulus specification of the intended - color of the red, green and blue channels in the PNG RGB - data. The white point is simply the sum of the three end - points. - - png_set_sRGB(png_ptr, info_ptr, srgb_intent); - - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of - the sRGB chunk means that the pixel - data is in the sRGB color space. - This chunk also implies specific - values of gAMA and cHRM. Rendering - intent is the CSS-1 property that - has been defined by the International - Color Consortium - (http://www.color.org). - It can be one of - PNG_sRGB_INTENT_SATURATION, - PNG_sRGB_INTENT_PERCEPTUAL, - PNG_sRGB_INTENT_ABSOLUTE, or - PNG_sRGB_INTENT_RELATIVE. - - - png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr, - srgb_intent); - - srgb_intent - the rendering intent - (PNG_INFO_sRGB) The presence of the - sRGB chunk means that the pixel - data is in the sRGB color space. - This function also causes gAMA and - cHRM chunks with the specific values - that are consistent with sRGB to be - written. - - png_set_iCCP(png_ptr, info_ptr, name, compression_type, - profile, proflen); - - name - The profile name. - - compression_type - The compression type; always - PNG_COMPRESSION_TYPE_BASE for PNG 1.0. - You may give NULL to this argument to - ignore it. - - profile - International Color Consortium color - profile data. May contain NULs. - - proflen - length of profile data in bytes. - - png_set_sBIT(png_ptr, info_ptr, sig_bit); - - sig_bit - the number of significant bits for - (PNG_INFO_sBIT) each of the gray, red, - green, and blue channels, whichever are - appropriate for the given color type - (png_color_16) - - png_set_tRNS(png_ptr, info_ptr, trans_alpha, - num_trans, trans_color); - - trans_alpha - array of alpha (transparency) - entries for palette (PNG_INFO_tRNS) - - num_trans - number of transparent entries - (PNG_INFO_tRNS) - - trans_color - graylevel or color sample values - (in order red, green, blue) of the - single transparent color for - non-paletted images (PNG_INFO_tRNS) - - png_set_hIST(png_ptr, info_ptr, hist); - - hist - histogram of palette (array of - png_uint_16) (PNG_INFO_hIST) - - png_set_tIME(png_ptr, info_ptr, mod_time); - - mod_time - time image was last modified - (PNG_VALID_tIME) - - png_set_bKGD(png_ptr, info_ptr, background); - - background - background color (of type - png_color_16p) (PNG_VALID_bKGD) - - png_set_text(png_ptr, info_ptr, text_ptr, num_text); - - text_ptr - array of png_text holding image - comments - - text_ptr[i].compression - type of compression used - on "text" PNG_TEXT_COMPRESSION_NONE - PNG_TEXT_COMPRESSION_zTXt - PNG_ITXT_COMPRESSION_NONE - PNG_ITXT_COMPRESSION_zTXt - text_ptr[i].key - keyword for comment. Must contain - 1-79 characters. - text_ptr[i].text - text comments for current - keyword. Can be NULL or empty. - text_ptr[i].text_length - length of text string, - after decompression, 0 for iTXt - text_ptr[i].itxt_length - length of itxt string, - after decompression, 0 for tEXt/zTXt - text_ptr[i].lang - language of comment (NULL or - empty for unknown). - text_ptr[i].translated_keyword - keyword in UTF-8 (NULL - or empty for unknown). - - Note that the itxt_length, lang, and lang_key - members of the text_ptr structure only exist when the - library is built with iTXt chunk support. Prior to - libpng-1.4.0 the library was built by default without - iTXt support. Also note that when iTXt is supported, - they contain NULL pointers when the "compression" - field contains PNG_TEXT_COMPRESSION_NONE or - PNG_TEXT_COMPRESSION_zTXt. - - num_text - number of comments - - png_set_sPLT(png_ptr, info_ptr, &palette_ptr, - num_spalettes); - - palette_ptr - array of png_sPLT_struct structures - to be added to the list of palettes - in the info structure. - num_spalettes - number of palette structures to be - added. - - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, - unit_type); - - offset_x - positive offset from the left - edge of the screen - - offset_y - positive offset from the top - edge of the screen - - unit_type - PNG_OFFSET_PIXEL, PNG_OFFSET_MICROMETER - - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, - unit_type); - - res_x - pixels/unit physical resolution - in x direction - - res_y - pixels/unit physical resolution - in y direction - - unit_type - PNG_RESOLUTION_UNKNOWN, - PNG_RESOLUTION_METER - - png_set_sCAL(png_ptr, info_ptr, unit, width, height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - - height - height of a pixel in physical scale units - (width and height are doubles) - - png_set_sCAL_s(png_ptr, info_ptr, unit, width, height) - - unit - physical scale units (an integer) - - width - width of a pixel in physical scale units - expressed as a string - - height - height of a pixel in physical scale units - (width and height are strings like "2.54") - - png_set_unknown_chunks(png_ptr, info_ptr, &unknowns, - num_unknowns) - - unknowns - array of png_unknown_chunk - structures holding unknown chunks - unknowns[i].name - name of unknown chunk - unknowns[i].data - data of unknown chunk - unknowns[i].size - size of unknown chunk's data - unknowns[i].location - position to write chunk in file - 0: do not write chunk - PNG_HAVE_IHDR: before PLTE - PNG_HAVE_PLTE: before IDAT - PNG_AFTER_IDAT: after IDAT - -The "location" member is set automatically according to -what part of the output file has already been written. -You can change its value after calling png_set_unknown_chunks() -as demonstrated in pngtest.c. Within each of the "locations", -the chunks are sequenced according to their position in the -structure (that is, the value of "i", which is the order in which -the chunk was either read from the input file or defined with -png_set_unknown_chunks). - -A quick word about text and num_text. text is an array of png_text -structures. num_text is the number of valid structures in the array. -Each png_text structure holds a language code, a keyword, a text value, -and a compression type. - -The compression types have the same valid numbers as the compression -types of the image data. Currently, the only valid number is zero. -However, you can store text either compressed or uncompressed, unlike -images, which always have to be compressed. So if you don't want the -text compressed, set the compression type to PNG_TEXT_COMPRESSION_NONE. -Because tEXt and zTXt chunks don't have a language field, if you -specify PNG_TEXT_COMPRESSION_NONE or PNG_TEXT_COMPRESSION_zTXt -any language code or translated keyword will not be written out. - -Until text gets around a few hundred bytes, it is not worth compressing it. -After the text has been written out to the file, the compression type -is set to PNG_TEXT_COMPRESSION_NONE_WR or PNG_TEXT_COMPRESSION_zTXt_WR, -so that it isn't written out again at the end (in case you are calling -png_write_end() with the same struct). - -The keywords that are given in the PNG Specification are: - - Title Short (one line) title or - caption for image - - Author Name of image's creator - - Description Description of image (possibly long) - - Copyright Copyright notice - - Creation Time Time of original image creation - (usually RFC 1123 format, see below) - - Software Software used to create the image - - Disclaimer Legal disclaimer - - Warning Warning of nature of content - - Source Device used to create the image - - Comment Miscellaneous comment; conversion - from other image format - -The keyword-text pairs work like this. Keywords should be short -simple descriptions of what the comment is about. Some typical -keywords are found in the PNG specification, as is some recommendations -on keywords. You can repeat keywords in a file. You can even write -some text before the image and some after. For example, you may want -to put a description of the image before the image, but leave the -disclaimer until after, so viewers working over modem connections -don't have to wait for the disclaimer to go over the modem before -they start seeing the image. Finally, keywords should be full -words, not abbreviations. Keywords and text are in the ISO 8859-1 -(Latin-1) character set (a superset of regular ASCII) and can not -contain NUL characters, and should not contain control or other -unprintable characters. To make the comments widely readable, stick -with basic ASCII, and avoid machine specific character set extensions -like the IBM-PC character set. The keyword must be present, but -you can leave off the text string on non-compressed pairs. -Compressed pairs must have a text string, as only the text string -is compressed anyway, so the compression would be meaningless. - -PNG supports modification time via the png_time structure. Two -conversion routines are provided, png_convert_from_time_t() for -time_t and png_convert_from_struct_tm() for struct tm. The -time_t routine uses gmtime(). You don't have to use either of -these, but if you wish to fill in the png_time structure directly, -you should provide the time in universal time (GMT) if possible -instead of your local time. Note that the year number is the full -year (e.g. 1998, rather than 98 - PNG is year 2000 compliant!), and -that months start with 1. - -If you want to store the time of the original image creation, you should -use a plain tEXt chunk with the "Creation Time" keyword. This is -necessary because the "creation time" of a PNG image is somewhat vague, -depending on whether you mean the PNG file, the time the image was -created in a non-PNG format, a still photo from which the image was -scanned, or possibly the subject matter itself. In order to facilitate -machine-readable dates, it is recommended that the "Creation Time" -tEXt chunk use RFC 1123 format dates (e.g. "22 May 1997 18:07:10 GMT"), -although this isn't a requirement. Unlike the tIME chunk, the -"Creation Time" tEXt chunk is not expected to be automatically changed -by the software. To facilitate the use of RFC 1123 dates, a function -png_convert_to_rfc1123_buffer(png_ptr, buffer, png_timep) is provided to -convert from PNG time to an RFC 1123 format string. The caller must provide -a writeable buffer of at least 29 bytes. - -.SS Writing unknown chunks - -You can use the png_set_unknown_chunks function to queue up private chunks -for writing. You give it a chunk name, location, raw data, and a size. You -also must use png_set_keep_unknown_chunks() to ensure that libpng will -handle them. That's all there is to it. The chunks will be written by the -next following png_write_info_before_PLTE, png_write_info, or png_write_end -function, depending upon the specified location. Any chunks previously -read into the info structure's unknown-chunk list will also be written out -in a sequence that satisfies the PNG specification's ordering rules. - -Here is an example of writing two private chunks, prVt and miNE: - - #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - /* Set unknown chunk data */ - png_unknown_chunk unk_chunk[2]; - strcpy((char *) unk_chunk[0].name, "prVt"; - unk_chunk[0].data = (unsigned char *) "PRIVATE DATA"; - unk_chunk[0].size = strlen(unk_chunk[0].data)+1; - unk_chunk[0].location = PNG_HAVE_IHDR; - strcpy((char *) unk_chunk[1].name, "miNE"; - unk_chunk[1].data = (unsigned char *) "MY CHUNK DATA"; - unk_chunk[1].size = strlen(unk_chunk[0].data)+1; - unk_chunk[1].location = PNG_AFTER_IDAT; - png_set_unknown_chunks(write_ptr, write_info_ptr, - unk_chunk, 2); - /* Needed because miNE is not safe-to-copy */ - png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, - (png_bytep) "miNE", 1); - # if PNG_LIBPNG_VER < 10600 - /* Deal with unknown chunk location bug in 1.5.x and earlier */ - png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR); - png_set_unknown_chunk_location(png, info, 1, PNG_AFTER_IDAT); - # endif - # if PNG_LIBPNG_VER < 10500 - /* PNG_AFTER_IDAT writes two copies of the chunk prior to libpng-1.5.0, - * one before IDAT and another after IDAT, so don't use it; only use - * PNG_HAVE_IHDR location. This call resets the location previously - * set by assignment and png_set_unknown_chunk_location() for chunk 1. - */ - png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR); - # endif - #endif - -.SS The high-level write interface - -At this point there are two ways to proceed; through the high-level -write interface, or through a sequence of low-level write operations. -You can use the high-level interface if your image data is present -in the info structure. All defined output -transformations are permitted, enabled by the following masks. - - PNG_TRANSFORM_IDENTITY No transformation - PNG_TRANSFORM_PACKING Pack 1, 2 and 4-bit samples - PNG_TRANSFORM_PACKSWAP Change order of packed - pixels to LSB first - PNG_TRANSFORM_INVERT_MONO Invert monochrome images - PNG_TRANSFORM_SHIFT Normalize pixels to the - sBIT depth - PNG_TRANSFORM_BGR Flip RGB to BGR, RGBA - to BGRA - PNG_TRANSFORM_SWAP_ALPHA Flip RGBA to ARGB or GA - to AG - PNG_TRANSFORM_INVERT_ALPHA Change alpha from opacity - to transparency - PNG_TRANSFORM_SWAP_ENDIAN Byte-swap 16-bit samples - PNG_TRANSFORM_STRIP_FILLER Strip out filler - bytes (deprecated). - PNG_TRANSFORM_STRIP_FILLER_BEFORE Strip out leading - filler bytes - PNG_TRANSFORM_STRIP_FILLER_AFTER Strip out trailing - filler bytes - -If you have valid image data in the info structure (you can use -png_set_rows() to put image data in the info structure), simply do this: - - png_write_png(png_ptr, info_ptr, png_transforms, NULL) - -where png_transforms is an integer containing the bitwise OR of some set of -transformation flags. This call is equivalent to png_write_info(), -followed the set of transformations indicated by the transform mask, -then png_write_image(), and finally png_write_end(). - -(The final parameter of this call is not yet used. Someday it might point -to transformation parameters required by some future output transform.) - -You must use png_transforms and not call any png_set_transform() functions -when you use png_write_png(). - -.SS The low-level write interface - -If you are going the low-level route instead, you are now ready to -write all the file information up to the actual image data. You do -this with a call to png_write_info(). - - png_write_info(png_ptr, info_ptr); - -Note that there is one transformation you may need to do before -png_write_info(). In PNG files, the alpha channel in an image is the -level of opacity. If your data is supplied as a level of transparency, -you can invert the alpha channel before you write it, so that 0 is -fully transparent and 255 (in 8-bit or paletted images) or 65535 -(in 16-bit images) is fully opaque, with - - png_set_invert_alpha(png_ptr); - -This must appear before png_write_info() instead of later with the -other transformations because in the case of paletted images the tRNS -chunk data has to be inverted before the tRNS chunk is written. If -your image is not a paletted image, the tRNS data (which in such cases -represents a single color to be rendered as transparent) won't need to -be changed, and you can safely do this transformation after your -png_write_info() call. - -If you need to write a private chunk that you want to appear before -the PLTE chunk when PLTE is present, you can write the PNG info in -two steps, and insert code to write your own chunk between them: - - png_write_info_before_PLTE(png_ptr, info_ptr); - png_set_unknown_chunks(png_ptr, info_ptr, ...); - png_write_info(png_ptr, info_ptr); - -After you've written the file information, you can set up the library -to handle any special transformations of the image data. The various -ways to transform the data will be described in the order that they -should occur. This is important, as some of these change the color -type and/or bit depth of the data, and some others only work on -certain color types and bit depths. Even though each transformation -checks to see if it has data that it can do something with, you should -make sure to only enable a transformation if it will be valid for the -data. For example, don't swap red and blue on grayscale data. - -PNG files store RGB pixels packed into 3 or 6 bytes. This code tells -the library to strip input data that has 4 or 8 bytes per pixel down -to 3 or 6 bytes (or strip 2 or 4-byte grayscale+filler data to 1 or 2 -bytes per pixel). - - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); - -where the 0 is unused, and the location is either PNG_FILLER_BEFORE or -PNG_FILLER_AFTER, depending upon whether the filler byte in the pixel -is stored XRGB or RGBX. - -PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as -they can, resulting in, for example, 8 pixels per byte for 1 bit files. -If the data is supplied at 1 pixel per byte, use this code, which will -correctly pack the pixels into a single byte: - - png_set_packing(png_ptr); - -PNG files reduce possible bit depths to 1, 2, 4, 8, and 16. If your -data is of another bit depth, you can write an sBIT chunk into the -file so that decoders can recover the original data if desired. - - /* Set the true bit depth of the image data */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit.red = true_bit_depth; - sig_bit.green = true_bit_depth; - sig_bit.blue = true_bit_depth; - } - - else - { - sig_bit.gray = true_bit_depth; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - sig_bit.alpha = true_bit_depth; - } - - png_set_sBIT(png_ptr, info_ptr, &sig_bit); - -If the data is stored in the row buffer in a bit depth other than -one supported by PNG (e.g. 3 bit data in the range 0-7 for a 4-bit PNG), -this will scale the values to appear to be the correct bit depth as -is required by PNG. - - png_set_shift(png_ptr, &sig_bit); - -PNG files store 16-bit pixels in network byte order (big-endian, -ie. most significant bits first). This code would be used if they are -supplied the other way (little-endian, i.e. least significant bits -first, the way PCs store them): - - if (bit_depth > 8) - png_set_swap(png_ptr); - -If you are using packed-pixel images (1, 2, or 4 bits/pixel), and you -need to change the order the pixels are packed into bytes, you can use: - - if (bit_depth < 8) - png_set_packswap(png_ptr); - -PNG files store 3 color pixels in red, green, blue order. This code -would be used if they are supplied as blue, green, red: - - png_set_bgr(png_ptr); - -PNG files describe monochrome as black being zero and white being -one. This code would be used if the pixels are supplied with this reversed -(black being one and white being zero): - - png_set_invert_mono(png_ptr); - -Finally, you can write your own transformation function if none of -the existing ones meets your needs. This is done by setting a callback -with - - png_set_write_user_transform_fn(png_ptr, - write_transform_fn); - -You must supply the function - - void write_transform_fn(png_structp png_ptr, png_row_infop - row_info, png_bytep data) - -See pngtest.c for a working example. Your function will be called -before any of the other transformations are processed. If supported -libpng also supplies an information routine that may be called from -your callback: - - png_get_current_row_number(png_ptr); - png_get_current_pass_number(png_ptr); - -This returns the current row passed to the transform. With interlaced -images the value returned is the row in the input sub-image image. Use -PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to -find the output pixel (x,y) given an interlaced sub-image pixel (row,col,pass). - -The discussion of interlace handling above contains more information on how to -use these values. - -You can also set up a pointer to a user structure for use by your -callback function. - - png_set_user_transform_info(png_ptr, user_ptr, 0, 0); - -The user_channels and user_depth parameters of this function are ignored -when writing; you can set them to zero as shown. - -You can retrieve the pointer via the function png_get_user_transform_ptr(). -For example: - - voidp write_user_transform_ptr = - png_get_user_transform_ptr(png_ptr); - -It is possible to have libpng flush any pending output, either manually, -or automatically after a certain number of lines have been written. To -flush the output stream a single time call: - - png_write_flush(png_ptr); - -and to have libpng flush the output stream periodically after a certain -number of scanlines have been written, call: - - png_set_flush(png_ptr, nrows); - -Note that the distance between rows is from the last time png_write_flush() -was called, or the first row of the image if it has never been called. -So if you write 50 lines, and then png_set_flush 25, it will flush the -output on the next scanline, and every 25 lines thereafter, unless -png_write_flush() is called before 25 more lines have been written. -If nrows is too small (less than about 10 lines for a 640 pixel wide -RGB image) the image compression may decrease noticeably (although this -may be acceptable for real-time applications). Infrequent flushing will -only degrade the compression performance by a few percent over images -that do not use flushing. - -.SS Writing the image data - -That's it for the transformations. Now you can write the image data. -The simplest way to do this is in one function call. If you have the -whole image in memory, you can just call png_write_image() and libpng -will write the image. You will need to pass in an array of pointers to -each row. This function automatically handles interlacing, so you don't -need to call png_set_interlace_handling() or call this function multiple -times, or any of that other stuff necessary with png_write_rows(). - - png_write_image(png_ptr, row_pointers); - -where row_pointers is: - - png_byte *row_pointers[height]; - -You can point to void or char or whatever you use for pixels. - -If you don't want to write the whole image at once, you can -use png_write_rows() instead. If the file is not interlaced, -this is simple: - - png_write_rows(png_ptr, row_pointers, - number_of_rows); - -row_pointers is the same as in the png_write_image() call. - -If you are just writing one row at a time, you can do this with -a single row_pointer instead of an array of row_pointers: - - png_bytep row_pointer = row; - - png_write_row(png_ptr, row_pointer); - -When the file is interlaced, things can get a good deal more complicated. -The only currently (as of the PNG Specification version 1.2, dated July -1999) defined interlacing scheme for PNG files is the "Adam7" interlace -scheme, that breaks down an image into seven smaller images of varying -size. libpng will build these images for you, or you can do them -yourself. If you want to build them yourself, see the PNG specification -for details of which pixels to write when. - -If you don't want libpng to handle the interlacing details, just -use png_set_interlace_handling() and call png_write_rows() the -correct number of times to write all the sub-images -(png_set_interlace_handling() returns the number of sub-images.) - -If you want libpng to build the sub-images, call this before you start -writing any rows: - - number_of_passes = png_set_interlace_handling(png_ptr); - -This will return the number of passes needed. Currently, this is seven, -but may change if another interlace type is added. - -Then write the complete image number_of_passes times. - - png_write_rows(png_ptr, row_pointers, number_of_rows); - -Think carefully before you write an interlaced image. Typically code that -reads such images reads all the image data into memory, uncompressed, before -doing any processing. Only code that can display an image on the fly can -take advantage of the interlacing and even then the image has to be exactly -the correct size for the output device, because scaling an image requires -adjacent pixels and these are not available until all the passes have been -read. - -If you do write an interlaced image you will hardly ever need to handle -the interlacing yourself. Call png_set_interlace_handling() and use the -approach described above. - -The only time it is conceivable that you will really need to write an -interlaced image pass-by-pass is when you have read one pass by pass and -made some pixel-by-pixel transformation to it, as described in the read -code above. In this case use the PNG_PASS_ROWS and PNG_PASS_COLS macros -to determine the size of each sub-image in turn and simply write the rows -you obtained from the read code. - -.SS Finishing a sequential write - -After you are finished writing the image, you should finish writing -the file. If you are interested in writing comments or time, you should -pass an appropriately filled png_info pointer. If you are not interested, -you can pass NULL. - - png_write_end(png_ptr, info_ptr); - -When you are done, you can free all memory used by libpng like this: - - png_destroy_write_struct(&png_ptr, &info_ptr); - -It is also possible to individually free the info_ptr members that -point to libpng-allocated storage with the following function: - - png_free_data(png_ptr, info_ptr, mask, seq) - - mask - identifies data to be freed, a mask - containing the bitwise OR of one or - more of - PNG_FREE_PLTE, PNG_FREE_TRNS, - PNG_FREE_HIST, PNG_FREE_ICCP, - PNG_FREE_PCAL, PNG_FREE_ROWS, - PNG_FREE_SCAL, PNG_FREE_SPLT, - PNG_FREE_TEXT, PNG_FREE_UNKN, - or simply PNG_FREE_ALL - - seq - sequence number of item to be freed - (\-1 for all items) - -This function may be safely called when the relevant storage has -already been freed, or has not yet been allocated, or was allocated -by the user and not by libpng, and will in those cases do nothing. -The "seq" parameter is ignored if only one item of the selected data -type, such as PLTE, is allowed. If "seq" is not \-1, and multiple items -are allowed for the data type identified in the mask, such as text or -sPLT, only the n'th item in the structure is freed, where n is "seq". - -If you allocated data such as a palette that you passed in to libpng -with png_set_*, you must not free it until just before the call to -png_destroy_write_struct(). - -The default behavior is only to free data that was allocated internally -by libpng. This can be changed, so that libpng will not free the data, -or so that it will free data that was allocated by the user with png_malloc() -or png_calloc() and passed in via a png_set_*() function, with - - png_data_freer(png_ptr, info_ptr, freer, mask) - - freer - one of - PNG_DESTROY_WILL_FREE_DATA - PNG_SET_WILL_FREE_DATA - PNG_USER_WILL_FREE_DATA - - mask - which data elements are affected - same choices as in png_free_data() - -For example, to transfer responsibility for some data from a read structure -to a write structure, you could use - - png_data_freer(read_ptr, read_info_ptr, - PNG_USER_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - - png_data_freer(write_ptr, write_info_ptr, - PNG_DESTROY_WILL_FREE_DATA, - PNG_FREE_PLTE|PNG_FREE_tRNS|PNG_FREE_hIST) - -thereby briefly reassigning responsibility for freeing to the user but -immediately afterwards reassigning it once more to the write_destroy -function. Having done this, it would then be safe to destroy the read -structure and continue to use the PLTE, tRNS, and hIST data in the write -structure. - -This function only affects data that has already been allocated. -You can call this function before calling after the png_set_*() functions -to control whether the user or png_destroy_*() is supposed to free the data. -When the user assumes responsibility for libpng-allocated data, the -application must use -png_free() to free it, and when the user transfers responsibility to libpng -for data that the user has allocated, the user must have used png_malloc() -or png_calloc() to allocate it. - -If you allocated text_ptr.text, text_ptr.lang, and text_ptr.translated_keyword -separately, do not transfer responsibility for freeing text_ptr to libpng, -because when libpng fills a png_text structure it combines these members with -the key member, and png_free_data() will free only text_ptr.key. Similarly, -if you transfer responsibility for free'ing text_ptr from libpng to your -application, your application must not separately free those members. -For a more compact example of writing a PNG image, see the file example.c. - -.SH V. Simplified API - -The simplified API, which became available in libpng-1.6.0, hides the details -of both libpng and the PNG file format itself. -It allows PNG files to be read into a very limited number of -in-memory bitmap formats or to be written from the same formats. If these -formats do not accommodate your needs then you can, and should, use the more -sophisticated APIs above - these support a wide variety of in-memory formats -and a wide variety of sophisticated transformations to those formats as well -as a wide variety of APIs to manipulate ancilliary information. - -To read a PNG file using the simplified API: - - 1) Declare a 'png_image' structure (see below) on the - stack and memset() it to all zero. - - 2) Call the appropriate png_image_begin_read... function. - - 3) Set the png_image 'format' member to the required - format and allocate a buffer for the image. - - 4) Call png_image_finish_read to read the image into - your buffer. - -There are no restrictions on the format of the PNG input itself; all valid -color types, bit depths, and interlace methods are acceptable, and the -input image is transformed as necessary to the requested in-memory format -during the png_image_finish_read() step. - -To write a PNG file using the simplified API: - - 1) Declare a 'png_image' structure on the stack and memset() - it to all zero. - - 2) Initialize the members of the structure that describe the - image, setting the 'format' member to the format of the - image in memory. - - 3) Call the appropriate png_image_write... function with a - pointer to the image to write the PNG data. - -png_image is a structure that describes the in-memory format of an image -when it is being read or define the in-memory format of an image that you -need to write. The "png_image" structure contains the following members: - - png_uint_32 version Set to PNG_IMAGE_VERSION - png_uint_32 width Image width in pixels (columns) - png_uint_32 height Image height in pixels (rows) - png_uint_32 format Image format as defined below - png_uint_32 flags A bit mask containing informational flags - png_controlp opaque Initialize to NULL, free with png_image_free - png_uint_32 colormap_entries; Number of entries in the color-map - png_uint_32 warning_or_error; - char message[64]; - -In the event of an error or warning the following field warning_or_error -field will be set to a non-zero value and the 'message' field will contain -a '\0' terminated string with the libpng error or warning message. If both -warnings and an error were encountered, only the error is recorded. If there -are multiple warnings, only the first one is recorded. - -The upper 30 bits of this value are reserved; the low two bits contain -a two bit code such that a value more than 1 indicates a failure in the API -just called: - - 0 - no warning or error - 1 - warning - 2 - error - 3 - error preceded by warning - -The pixels (samples) of the image have one to four channels whose components -have original values in the range 0 to 1.0: - - 1: A single gray or luminance channel (G). - 2: A gray/luminance channel and an alpha channel (GA). - 3: Three red, green, blue color channels (RGB). - 4: Three color channels and an alpha channel (RGBA). - -The channels are encoded in one of two ways: - - a) As a small integer, value 0..255, contained in a single byte. For the -alpha channel the original value is simply value/255. For the color or -luminance channels the value is encoded according to the sRGB specification -and matches the 8-bit format expected by typical display devices. - -The color/gray channels are not scaled (pre-multiplied) by the alpha -channel and are suitable for passing to color management software. - - b) As a value in the range 0..65535, contained in a 2-byte integer, in -the native byte order of the platform on which the application is running. -All channels can be converted to the original value by dividing by 65535; all -channels are linear. Color channels use the RGB encoding (RGB end-points) of -the sRGB specification. This encoding is identified by the -PNG_FORMAT_FLAG_LINEAR flag below. - -When an alpha channel is present it is expected to denote pixel coverage -of the color or luminance channels and is returned as an associated alpha -channel: the color/gray channels are scaled (pre-multiplied) by the alpha -value. - -When a color-mapped image is used as a result of calling -png_image_read_colormap or png_image_write_colormap the channels are encoded -in the color-map and the descriptions above apply to the color-map entries. -The image data is encoded as small integers, value 0..255, that index the -entries in the color-map. One integer (one byte) is stored for each pixel. - -PNG_FORMAT_* - -The #defines to be used in png_image::format. Each #define identifies a -particular layout of channel data and, if present, alpha values. There are -separate defines for each of the two channel encodings. - -A format is built up using single bit flag values. Not all combinations are -valid: use the bit flag values below for testing a format returned by the -read APIs, but set formats from the derived values. - -When reading or writing color-mapped images the format should be set to the -format of the entries in the color-map then png_image_{read,write}_colormap -called to read or write the color-map and set the format correctly for the -image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! - -NOTE: libpng can be built with particular features disabled, if you see -compiler errors because the definition of one of the following flags has been -compiled out it is because libpng does not have the required support. It is -possible, however, for the libpng configuration to enable the format on just -read or just write; in that case you may see an error at run time. You can -guard against this by checking for the definition of: - - PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED - - PNG_FORMAT_FLAG_ALPHA 0x01 format with an alpha channel - PNG_FORMAT_FLAG_COLOR 0x02 color format: otherwise grayscale - PNG_FORMAT_FLAG_LINEAR 0x04 png_uint_16 channels else png_byte - PNG_FORMAT_FLAG_COLORMAP 0x08 libpng use only - PNG_FORMAT_FLAG_BGR 0x10 BGR colors, else order is RGB - PNG_FORMAT_FLAG_AFIRST 0x20 alpha channel comes first - -Supported formats are as follows. Future versions of libpng may support more -formats; for compatibility with older versions simply check if the format -macro is defined using #ifdef. These defines describe the in-memory layout -of the components of the pixels of the image. - -First the single byte formats: - - PNG_FORMAT_GRAY 0 - PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA - PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) - PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR - PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) - PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) - PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) - -Then the linear 2-byte formats. When naming these "Y" is used to -indicate a luminance (gray) channel. The component order within the pixel -is always the same - there is no provision for swapping the order of the -components in the linear format. The components are 16-bit integers in -the native byte order for your platform, and there is no provision for -swapping the bytes to a different endian condition. - - PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR - PNG_FORMAT_LINEAR_Y_ALPHA - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) - PNG_FORMAT_LINEAR_RGB - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) - PNG_FORMAT_LINEAR_RGB_ALPHA - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR| - PNG_FORMAT_FLAG_ALPHA) - -Color-mapped formats are obtained by calling png_image_{read,write}_colormap, -as appropriate after setting png_image::format to the format of the color-map -to be read or written. Applications may check the value of -PNG_FORMAT_FLAG_COLORMAP to see if they have called the colormap API. The -format of the color-map may be extracted using the following macro. - - PNG_FORMAT_OF_COLORMAP(fmt) ((fmt) & ~PNG_FORMAT_FLAG_COLORMAP) - -PNG_IMAGE macros - -These are convenience macros to derive information from a png_image -structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the -actual image sample values - either the entries in the color-map or the -pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values -for the pixels and will always return 1 after a call to -png_image_{read,write}_colormap. The remaining macros return information -about the rows in the image and the complete image. - -NOTE: All the macros that take a png_image::format parameter are compile time -constants if the format parameter is, itself, a constant. Therefore these -macros can be used in array declarations and case labels where required. -Similarly the macros are also pre-processor constants (sizeof is not used) so -they can be used in #if tests. - -First the information about the samples. - - PNG_IMAGE_SAMPLE_CHANNELS(fmt) - Returns the total number of channels in a given format: 1..4 - - PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt) - Returns the size in bytes of a single component of a pixel or color-map - entry (as appropriate) in the image. - - PNG_IMAGE_SAMPLE_SIZE(fmt) - This is the size of the sample data for one sample. If the image is - color-mapped it is the size of one color-map entry (and image pixels are - one byte in size), otherwise it is the size of one image pixel. - - PNG_IMAGE_COLORMAP_SIZE(fmt) - The size of the color-map required by the format; this is the size of the - color-map buffer passed to the png_image_{read,write}_colormap APIs, it is - a fixed number determined by the format so can easily be allocated on the - stack if necessary. - -#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ - (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) - /* The maximum size of the color-map required by the format expressed in a - * count of components. This can be used to compile-time allocate a - * color-map: - * - * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; - * - * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; - * - * Alternatively, use the PNG_IMAGE_COLORMAP_SIZE macro below to use the - * information from one of the png_image_begin_read_ APIs and dynamically - * allocate the required memory. - */ - - -Corresponding information about the pixels - - PNG_IMAGE_PIXEL_(test,fmt) - - PNG_IMAGE_PIXEL_CHANNELS(fmt) - The number of separate channels (components) in a pixel; 1 for a - color-mapped image. - - PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ - The size, in bytes, of each component in a pixel; 1 for a color-mapped - image. - - PNG_IMAGE_PIXEL_SIZE(fmt) - The size, in bytes, of a complete pixel; 1 for a color-mapped image. - -Information about the whole row, or whole image - - PNG_IMAGE_ROW_STRIDE(image) - Returns the total number of components in a single row of the image; this - is the minimum 'row stride', the minimum count of components between each - row. For a color-mapped image this is the minimum number of bytes in a - row. - - If you need the stride measured in bytes, row_stride_bytes is - PNG_IMAGE_ROW_STRIDE(image) * PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt) - plus any padding bytes that your application might need, for example - to start the next row on a 4-byte boundary. - - PNG_IMAGE_BUFFER_SIZE(image, row_stride) - Returns the size, in bytes, of an image buffer given a png_image and a row - stride - the number of components to leave space for in each row. This - macro takes care of multiplying row_stride by PNG_IMAGE_PIXEL_COMONENT_SIZE - when the image has 2-byte components. - - PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB == 0x01 - This indicates the the RGB values of the in-memory bitmap do not - correspond to the red, green and blue end-points defined by sRGB. - - PNG_IMAGE_FLAG_COLORMAP == 0x02 - The PNG is color-mapped. If this flag is set png_image_read_colormap - can be used without further loss of image information. If it is not set - png_image_read_colormap will cause significant loss if the image has any - -READ APIs - - The png_image passed to the read APIs must have been initialized by setting - the png_controlp field 'opaque' to NULL (or, better, memset the whole thing.) - - int png_image_begin_read_from_file( png_imagep image, - const char *file_name) - - The named file is opened for read and the image header - is filled in from the PNG header in the file. - - int png_image_begin_read_from_stdio (png_imagep image, - FILE* file) - - The PNG header is read from the stdio FILE object. - - int png_image_begin_read_from_memory(png_imagep image, - png_const_voidp memory, png_size_t size) - - The PNG header is read from the given memory buffer. - - int png_image_finish_read(png_imagep image, - png_colorp background, void *buffer, - png_int_32 row_stride, void *colormap)); - - Finish reading the image into the supplied buffer and - clean up the png_image structure. - - row_stride is the step, in png_byte or png_uint_16 units - as appropriate, between adjacent rows. A positive stride - indicates that the top-most row is first in the buffer - - the normal top-down arrangement. A negative stride - indicates that the bottom-most row is first in the buffer. - - background need only be supplied if an alpha channel must - be removed from a png_byte format and the removal is to be - done by compositing on a solid color; otherwise it may be - NULL and any composition will be done directly onto the - buffer. The value is an sRGB color to use for the - background, for grayscale output the green channel is used. - - For linear output removing the alpha channel is always done - by compositing on black. - - void png_image_free(png_imagep image) - - Free any data allocated by libpng in image->opaque, - setting the pointer to NULL. May be called at any time - after the structure is initialized. - -When the simplified API needs to convert between sRGB and linear colorspaces, -the actual sRGB transfer curve defined in the sRGB specification (see the -article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 -approximation used elsewhere in libpng. - -WRITE APIS - -For write you must initialize a png_image structure to describe the image to -be written: - - version: must be set to PNG_IMAGE_VERSION - opaque: must be initialized to NULL - width: image width in pixels - height: image height in rows - format: the format of the data you wish to write - flags: set to 0 unless one of the defined flags applies; set - PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images - where the RGB values do not correspond to the colors in sRGB. - colormap_entries: set to the number of entries in the color-map (0 to 256) - - int png_image_write_to_file, (png_imagep image, - const char *file, int convert_to_8bit, const void *buffer, - png_int_32 row_stride, const void *colormap)); - - Write the image to the named file. - - int png_image_write_to_stdio(png_imagep image, FILE *file, - int convert_to_8_bit, const void *buffer, - png_int_32 row_stride, const void *colormap) - - Write the image to the given (FILE*). - -With all write APIs if image is in one of the linear formats with -(png_uint_16) data then setting convert_to_8_bit will cause the output to be -a (png_byte) PNG gamma encoded according to the sRGB specification, otherwise -a 16-bit linear encoded PNG file is written. - -With all APIs row_stride is handled as in the read APIs - it is the spacing -from one row to the next in component sized units (float) and if negative -indicates a bottom-up row layout in the buffer. - -Note that the write API does not support interlacing, sub-8-bit pixels, -and indexed (paletted) images. - -.SH VI. Modifying/Customizing libpng - -There are two issues here. The first is changing how libpng does -standard things like memory allocation, input/output, and error handling. -The second deals with more complicated things like adding new chunks, -adding new transformations, and generally changing how libpng works. -Both of those are compile-time issues; that is, they are generally -determined at the time the code is written, and there is rarely a need -to provide the user with a means of changing them. - -Memory allocation, input/output, and error handling - -All of the memory allocation, input/output, and error handling in libpng -goes through callbacks that are user-settable. The default routines are -in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change -these functions, call the appropriate png_set_*_fn() function. - -Memory allocation is done through the functions png_malloc(), png_calloc(), -and png_free(). The png_malloc() and png_free() functions currently just -call the standard C functions and png_calloc() calls png_malloc() and then -clears the newly allocated memory to zero; note that png_calloc(png_ptr, size) -is not the same as the calloc(number, size) function provided by stdlib.h. -There is limited support for certain systems with segmented memory -architectures and the types of pointers declared by png.h match this; you -will have to use appropriate pointers in your application. If you prefer -to use a different method of allocating and freeing data, you can use -png_create_read_struct_2() or png_create_write_struct_2() to register your -own functions as described above. These functions also provide a void -pointer that can be retrieved via - - mem_ptr=png_get_mem_ptr(png_ptr); - -Your replacement memory functions must have prototypes as follows: - - png_voidp malloc_fn(png_structp png_ptr, - png_alloc_size_t size); - - void free_fn(png_structp png_ptr, png_voidp ptr); - -Your malloc_fn() must return NULL in case of failure. The png_malloc() -function will normally call png_error() if it receives a NULL from the -system memory allocator or from your replacement malloc_fn(). - -Your free_fn() will never be called with a NULL ptr, since libpng's -png_free() checks for NULL before calling free_fn(). - -Input/Output in libpng is done through png_read() and png_write(), -which currently just call fread() and fwrite(). The FILE * is stored in -png_struct and is initialized via png_init_io(). If you wish to change -the method of I/O, the library supplies callbacks that you can set -through the function png_set_read_fn() and png_set_write_fn() at run -time, instead of calling the png_init_io() function. These functions -also provide a void pointer that can be retrieved via the function -png_get_io_ptr(). For example: - - png_set_read_fn(png_structp read_ptr, - voidp read_io_ptr, png_rw_ptr read_data_fn) - - png_set_write_fn(png_structp write_ptr, - voidp write_io_ptr, png_rw_ptr write_data_fn, - png_flush_ptr output_flush_fn); - - voidp read_io_ptr = png_get_io_ptr(read_ptr); - voidp write_io_ptr = png_get_io_ptr(write_ptr); - -The replacement I/O functions must have prototypes as follows: - - void user_read_data(png_structp png_ptr, - png_bytep data, png_size_t length); - - void user_write_data(png_structp png_ptr, - png_bytep data, png_size_t length); - - void user_flush_data(png_structp png_ptr); - -The user_read_data() function is responsible for detecting and -handling end-of-data errors. - -Supplying NULL for the read, write, or flush functions sets them back -to using the default C stream functions, which expect the io_ptr to -point to a standard *FILE structure. It is probably a mistake -to use NULL for one of write_data_fn and output_flush_fn but not both -of them, unless you have built libpng with PNG_NO_WRITE_FLUSH defined. -It is an error to read from a write stream, and vice versa. - -Error handling in libpng is done through png_error() and png_warning(). -Errors handled through png_error() are fatal, meaning that png_error() -should never return to its caller. Currently, this is handled via -setjmp() and longjmp() (unless you have compiled libpng with -PNG_NO_SETJMP, in which case it is handled via PNG_ABORT()), -but you could change this to do things like exit() if you should wish, -as long as your function does not return. - -On non-fatal errors, png_warning() is called -to print a warning message, and then control returns to the calling code. -By default png_error() and png_warning() print a message on stderr via -fprintf() unless the library is compiled with PNG_NO_CONSOLE_IO defined -(because you don't want the messages) or PNG_NO_STDIO defined (because -fprintf() isn't available). If you wish to change the behavior of the error -functions, you will need to set up your own message callbacks. These -functions are normally supplied at the time that the png_struct is created. -It is also possible to redirect errors and warnings to your own replacement -functions after png_create_*_struct() has been called by calling: - - png_set_error_fn(png_structp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warning_fn); - - png_voidp error_ptr = png_get_error_ptr(png_ptr); - -If NULL is supplied for either error_fn or warning_fn, then the libpng -default function will be used, calling fprintf() and/or longjmp() if a -problem is encountered. The replacement error functions should have -parameters as follows: - - void user_error_fn(png_structp png_ptr, - png_const_charp error_msg); - - void user_warning_fn(png_structp png_ptr, - png_const_charp warning_msg); - -The motivation behind using setjmp() and longjmp() is the C++ throw and -catch exception handling methods. This makes the code much easier to write, -as there is no need to check every return code of every function call. -However, there are some uncertainties about the status of local variables -after a longjmp, so the user may want to be careful about doing anything -after setjmp returns non-zero besides returning itself. Consult your -compiler documentation for more details. For an alternative approach, you -may wish to use the "cexcept" facility (see http://cexcept.sourceforge.net), -which is illustrated in pngvalid.c and in contrib/visupng. - -Beginning in libpng-1.4.0, the png_set_benign_errors() API became available. -You can use this to handle certain errors (normally handled as errors) -as warnings. - - png_set_benign_errors (png_ptr, int allowed); - - allowed: 0: treat png_benign_error() as an error. - 1: treat png_benign_error() as a warning. - -As of libpng-1.6.0, the default condition is to treat benign errors as -warnings while reading and as errors while writing. - -.SS Custom chunks - -If you need to read or write custom chunks, you may need to get deeper -into the libpng code. The library now has mechanisms for storing -and writing chunks of unknown type; you can even declare callbacks -for custom chunks. However, this may not be good enough if the -library code itself needs to know about interactions between your -chunk and existing `intrinsic' chunks. - -If you need to write a new intrinsic chunk, first read the PNG -specification. Acquire a first level of understanding of how it works. -Pay particular attention to the sections that describe chunk names, -and look at how other chunks were designed, so you can do things -similarly. Second, check out the sections of libpng that read and -write chunks. Try to find a chunk that is similar to yours and use -it as a template. More details can be found in the comments inside -the code. It is best to handle private or unknown chunks in a generic method, -via callback functions, instead of by modifying libpng functions. This -is illustrated in pngtest.c, which uses a callback function to handle a -private "vpAg" chunk and the new "sTER" chunk, which are both unknown to -libpng. - -If you wish to write your own transformation for the data, look through -the part of the code that does the transformations, and check out some of -the simpler ones to get an idea of how they work. Try to find a similar -transformation to the one you want to add and copy off of it. More details -can be found in the comments inside the code itself. - -.SS Configuring for gui/windowing platforms: - -You will need to write new error and warning functions that use the GUI -interface, as described previously, and set them to be the error and -warning functions at the time that png_create_*_struct() is called, -in order to have them available during the structure initialization. -They can be changed later via png_set_error_fn(). On some compilers, -you may also have to change the memory allocators (png_malloc, etc.). - -.SS Configuring zlib: - -There are special functions to configure the compression. Perhaps the -most useful one changes the compression level, which currently uses -input compression values in the range 0 - 9. The library normally -uses the default compression level (Z_DEFAULT_COMPRESSION = 6). Tests -have shown that for a large majority of images, compression values in -the range 3-6 compress nearly as well as higher levels, and do so much -faster. For online applications it may be desirable to have maximum speed -(Z_BEST_SPEED = 1). With versions of zlib after v0.99, you can also -specify no compression (Z_NO_COMPRESSION = 0), but this would create -files larger than just storing the raw bitmap. You can specify the -compression level by calling: - - #include zlib.h - png_set_compression_level(png_ptr, level); - -Another useful one is to reduce the memory level used by the library. -The memory level defaults to 8, but it can be lowered if you are -short on memory (running DOS, for example, where you only have 640K). -Note that the memory level does have an effect on compression; among -other things, lower levels will result in sections of incompressible -data being emitted in smaller stored blocks, with a correspondingly -larger relative overhead of up to 15% in the worst case. - - #include zlib.h - png_set_compression_mem_level(png_ptr, level); - -The other functions are for configuring zlib. They are not recommended -for normal use and may result in writing an invalid PNG file. See -zlib.h for more information on what these mean. - - #include zlib.h - png_set_compression_strategy(png_ptr, - strategy); - - png_set_compression_window_bits(png_ptr, - window_bits); - - png_set_compression_method(png_ptr, method); - -This controls the size of the IDAT chunks (default 8192): - - png_set_compression_buffer_size(png_ptr, size); - -As of libpng version 1.5.4, additional APIs became -available to set these separately for non-IDAT -compressed chunks such as zTXt, iTXt, and iCCP: - - #include zlib.h - #if PNG_LIBPNG_VER >= 10504 - png_set_text_compression_level(png_ptr, level); - - png_set_text_compression_mem_level(png_ptr, level); - - png_set_text_compression_strategy(png_ptr, - strategy); - - png_set_text_compression_window_bits(png_ptr, - window_bits); - - png_set_text_compression_method(png_ptr, method); - #endif - -.SS Controlling row filtering - -If you want to control whether libpng uses filtering or not, which -filters are used, and how it goes about picking row filters, you -can call one of these functions. The selection and configuration -of row filters can have a significant impact on the size and -encoding speed and a somewhat lesser impact on the decoding speed -of an image. Filtering is enabled by default for RGB and grayscale -images (with and without alpha), but not for paletted images nor -for any images with bit depths less than 8 bits/pixel. - -The 'method' parameter sets the main filtering method, which is -currently only '0' in the PNG 1.2 specification. The 'filters' -parameter sets which filter(s), if any, should be used for each -scanline. Possible values are PNG_ALL_FILTERS and PNG_NO_FILTERS -to turn filtering on and off, respectively. - -Individual filter types are PNG_FILTER_NONE, PNG_FILTER_SUB, -PNG_FILTER_UP, PNG_FILTER_AVG, PNG_FILTER_PAETH, which can be bitwise -ORed together with '|' to specify one or more filters to use. -These filters are described in more detail in the PNG specification. -If you intend to change the filter type during the course of writing -the image, you should start with flags set for all of the filters -you intend to use so that libpng can initialize its internal -structures appropriately for all of the filter types. (Note that this -means the first row must always be adaptively filtered, because libpng -currently does not allocate the filter buffers until png_write_row() -is called for the first time.) - - filters = PNG_FILTER_NONE | PNG_FILTER_SUB - PNG_FILTER_UP | PNG_FILTER_AVG | - PNG_FILTER_PAETH | PNG_ALL_FILTERS; - - png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, - filters); - The second parameter can also be - PNG_INTRAPIXEL_DIFFERENCING if you are - writing a PNG to be embedded in a MNG - datastream. This parameter must be the - same as the value of filter_method used - in png_set_IHDR(). - -It is also possible to influence how libpng chooses from among the -available filters. This is done in one or both of two ways - by -telling it how important it is to keep the same filter for successive -rows, and by telling it the relative computational costs of the filters. - - double weights[3] = {1.5, 1.3, 1.1}, - costs[PNG_FILTER_VALUE_LAST] = - {1.0, 1.3, 1.3, 1.5, 1.7}; - - png_set_filter_heuristics(png_ptr, - PNG_FILTER_HEURISTIC_WEIGHTED, 3, - weights, costs); - -The weights are multiplying factors that indicate to libpng that the -row filter should be the same for successive rows unless another row filter -is that many times better than the previous filter. In the above example, -if the previous 3 filters were SUB, SUB, NONE, the SUB filter could have a -"sum of absolute differences" 1.5 x 1.3 times higher than other filters -and still be chosen, while the NONE filter could have a sum 1.1 times -higher than other filters and still be chosen. Unspecified weights are -taken to be 1.0, and the specified weights should probably be declining -like those above in order to emphasize recent filters over older filters. - -The filter costs specify for each filter type a relative decoding cost -to be considered when selecting row filters. This means that filters -with higher costs are less likely to be chosen over filters with lower -costs, unless their "sum of absolute differences" is that much smaller. -The costs do not necessarily reflect the exact computational speeds of -the various filters, since this would unduly influence the final image -size. - -Note that the numbers above were invented purely for this example and -are given only to help explain the function usage. Little testing has -been done to find optimum values for either the costs or the weights. - -.SS Requesting debug printout - -The macro definition PNG_DEBUG can be used to request debugging -printout. Set it to an integer value in the range 0 to 3. Higher -numbers result in increasing amounts of debugging information. The -information is printed to the "stderr" file, unless another file -name is specified in the PNG_DEBUG_FILE macro definition. - -When PNG_DEBUG > 0, the following functions (macros) become available: - - png_debug(level, message) - png_debug1(level, message, p1) - png_debug2(level, message, p1, p2) - -in which "level" is compared to PNG_DEBUG to decide whether to print -the message, "message" is the formatted string to be printed, -and p1 and p2 are parameters that are to be embedded in the string -according to printf-style formatting directives. For example, - - png_debug1(2, "foo=%d", foo); - -is expanded to - - if (PNG_DEBUG > 2) - fprintf(PNG_DEBUG_FILE, "foo=%d\en", foo); - -When PNG_DEBUG is defined but is zero, the macros aren't defined, but you -can still use PNG_DEBUG to control your own debugging: - - #ifdef PNG_DEBUG - fprintf(stderr, ... - #endif - -When PNG_DEBUG = 1, the macros are defined, but only png_debug statements -having level = 0 will be printed. There aren't any such statements in -this version of libpng, but if you insert some they will be printed. - -.SH VII. MNG support - -The MNG specification (available at http://www.libpng.org/pub/mng) allows -certain extensions to PNG for PNG images that are embedded in MNG datastreams. -Libpng can support some of these extensions. To enable them, use the -png_permit_mng_features() function: - - feature_set = png_permit_mng_features(png_ptr, mask) - - mask is a png_uint_32 containing the bitwise OR of the - features you want to enable. These include - PNG_FLAG_MNG_EMPTY_PLTE - PNG_FLAG_MNG_FILTER_64 - PNG_ALL_MNG_FEATURES - - feature_set is a png_uint_32 that is the bitwise AND of - your mask with the set of MNG features that is - supported by the version of libpng that you are using. - -It is an error to use this function when reading or writing a standalone -PNG file with the PNG 8-byte signature. The PNG datastream must be wrapped -in a MNG datastream. As a minimum, it must have the MNG 8-byte signature -and the MHDR and MEND chunks. Libpng does not provide support for these -or any other MNG chunks; your application must provide its own support for -them. You may wish to consider using libmng (available at -http://www.libmng.com) instead. - -.SH VIII. Changes to Libpng from version 0.88 - -It should be noted that versions of libpng later than 0.96 are not -distributed by the original libpng author, Guy Schalnat, nor by -Andreas Dilger, who had taken over from Guy during 1996 and 1997, and -distributed versions 0.89 through 0.96, but rather by another member -of the original PNG Group, Glenn Randers-Pehrson. Guy and Andreas are -still alive and well, but they have moved on to other things. - -The old libpng functions png_read_init(), png_write_init(), -png_info_init(), png_read_destroy(), and png_write_destroy() have been -moved to PNG_INTERNAL in version 0.95 to discourage their use. These -functions will be removed from libpng version 1.4.0. - -The preferred method of creating and initializing the libpng structures is -via the png_create_read_struct(), png_create_write_struct(), and -png_create_info_struct() because they isolate the size of the structures -from the application, allow version error checking, and also allow the -use of custom error handling routines during the initialization, which -the old functions do not. The functions png_read_destroy() and -png_write_destroy() do not actually free the memory that libpng -allocated for these structs, but just reset the data structures, so they -can be used instead of png_destroy_read_struct() and -png_destroy_write_struct() if you feel there is too much system overhead -allocating and freeing the png_struct for each image read. - -Setting the error callbacks via png_set_message_fn() before -png_read_init() as was suggested in libpng-0.88 is no longer supported -because this caused applications that do not use custom error functions -to fail if the png_ptr was not initialized to zero. It is still possible -to set the error callbacks AFTER png_read_init(), or to change them with -png_set_error_fn(), which is essentially the same function, but with a new -name to force compilation errors with applications that try to use the old -method. - -Support for the sCAL, iCCP, iTXt, and sPLT chunks was added at libpng-1.0.6; -however, iTXt support was not enabled by default. - -Starting with version 1.0.7, you can find out which version of the library -you are using at run-time: - - png_uint_32 libpng_vn = png_access_version_number(); - -The number libpng_vn is constructed from the major version, minor -version with leading zero, and release number with leading zero, -(e.g., libpng_vn for version 1.0.7 is 10007). - -Note that this function does not take a png_ptr, so you can call it -before you've created one. - -You can also check which version of png.h you used when compiling your -application: - - png_uint_32 application_vn = PNG_LIBPNG_VER; - -.SH IX. Changes to Libpng from version 1.0.x to 1.2.x - -Support for user memory management was enabled by default. To -accomplish this, the functions png_create_read_struct_2(), -png_create_write_struct_2(), png_set_mem_fn(), png_get_mem_ptr(), -png_malloc_default(), and png_free_default() were added. - -Support for the iTXt chunk has been enabled by default as of -version 1.2.41. - -Support for certain MNG features was enabled. - -Support for numbered error messages was added. However, we never got -around to actually numbering the error messages. The function -png_set_strip_error_numbers() was added (Note: the prototype for this -function was inadvertently removed from png.h in PNG_NO_ASSEMBLER_CODE -builds of libpng-1.2.15. It was restored in libpng-1.2.36). - -The png_malloc_warn() function was added at libpng-1.2.3. This issues -a png_warning and returns NULL instead of aborting when it fails to -acquire the requested memory allocation. - -Support for setting user limits on image width and height was enabled -by default. The functions png_set_user_limits(), png_get_user_width_max(), -and png_get_user_height_max() were added at libpng-1.2.6. - -The png_set_add_alpha() function was added at libpng-1.2.7. - -The function png_set_expand_gray_1_2_4_to_8() was added at libpng-1.2.9. -Unlike png_set_gray_1_2_4_to_8(), the new function does not expand the -tRNS chunk to alpha. The png_set_gray_1_2_4_to_8() function is -deprecated. - -A number of macro definitions in support of runtime selection of -assembler code features (especially Intel MMX code support) were -added at libpng-1.2.0: - - PNG_ASM_FLAG_MMX_SUPPORT_COMPILED - PNG_ASM_FLAG_MMX_SUPPORT_IN_CPU - PNG_ASM_FLAG_MMX_READ_COMBINE_ROW - PNG_ASM_FLAG_MMX_READ_INTERLACE - PNG_ASM_FLAG_MMX_READ_FILTER_SUB - PNG_ASM_FLAG_MMX_READ_FILTER_UP - PNG_ASM_FLAG_MMX_READ_FILTER_AVG - PNG_ASM_FLAG_MMX_READ_FILTER_PAETH - PNG_ASM_FLAGS_INITIALIZED - PNG_MMX_READ_FLAGS - PNG_MMX_FLAGS - PNG_MMX_WRITE_FLAGS - PNG_MMX_FLAGS - -We added the following functions in support of runtime -selection of assembler code features: - - png_get_mmx_flagmask() - png_set_mmx_thresholds() - png_get_asm_flags() - png_get_mmx_bitdepth_threshold() - png_get_mmx_rowbytes_threshold() - png_set_asm_flags() - -We replaced all of these functions with simple stubs in libpng-1.2.20, -when the Intel assembler code was removed due to a licensing issue. - -These macros are deprecated: - - PNG_READ_TRANSFORMS_NOT_SUPPORTED - PNG_PROGRESSIVE_READ_NOT_SUPPORTED - PNG_NO_SEQUENTIAL_READ_SUPPORTED - PNG_WRITE_TRANSFORMS_NOT_SUPPORTED - PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED - PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED - -They have been replaced, respectively, by: - - PNG_NO_READ_TRANSFORMS - PNG_NO_PROGRESSIVE_READ - PNG_NO_SEQUENTIAL_READ - PNG_NO_WRITE_TRANSFORMS - PNG_NO_READ_ANCILLARY_CHUNKS - PNG_NO_WRITE_ANCILLARY_CHUNKS - -PNG_MAX_UINT was replaced with PNG_UINT_31_MAX. It has been -deprecated since libpng-1.0.16 and libpng-1.2.6. - -The function - png_check_sig(sig, num) -was replaced with - !png_sig_cmp(sig, 0, num) -It has been deprecated since libpng-0.90. - -The function - png_set_gray_1_2_4_to_8() -which also expands tRNS to alpha was replaced with - png_set_expand_gray_1_2_4_to_8() -which does not. It has been deprecated since libpng-1.0.18 and 1.2.9. - -.SH X. Changes to Libpng from version 1.0.x/1.2.x to 1.4.x - -Private libpng prototypes and macro definitions were moved from -png.h and pngconf.h into a new pngpriv.h header file. - -Functions png_set_benign_errors(), png_benign_error(), and -png_chunk_benign_error() were added. - -Support for setting the maximum amount of memory that the application -will allocate for reading chunks was added, as a security measure. -The functions png_set_chunk_cache_max() and png_get_chunk_cache_max() -were added to the library. - -We implemented support for I/O states by adding png_ptr member io_state -and functions png_get_io_chunk_name() and png_get_io_state() in pngget.c - -We added PNG_TRANSFORM_GRAY_TO_RGB to the available high-level -input transforms. - -Checking for and reporting of errors in the IHDR chunk is more thorough. - -Support for global arrays was removed, to improve thread safety. - -Some obsolete/deprecated macros and functions have been removed. - -Typecasted NULL definitions such as - #define png_voidp_NULL (png_voidp)NULL -were eliminated. If you used these in your application, just use -NULL instead. - -The png_struct and info_struct members "trans" and "trans_values" were -changed to "trans_alpha" and "trans_color", respectively. - -The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles -were removed. - -The PNG_1_0_X and PNG_1_2_X macros were eliminated. - -The PNG_LEGACY_SUPPORTED macro was eliminated. - -Many WIN32_WCE #ifdefs were removed. - -The functions png_read_init(info_ptr), png_write_init(info_ptr), -png_info_init(info_ptr), png_read_destroy(), and png_write_destroy() -have been removed. They have been deprecated since libpng-0.95. - -The png_permit_empty_plte() was removed. It has been deprecated -since libpng-1.0.9. Use png_permit_mng_features() instead. - -We removed the obsolete stub functions png_get_mmx_flagmask(), -png_set_mmx_thresholds(), png_get_asm_flags(), -png_get_mmx_bitdepth_threshold(), png_get_mmx_rowbytes_threshold(), -png_set_asm_flags(), and png_mmx_supported() - -We removed the obsolete png_check_sig(), png_memcpy_check(), and -png_memset_check() functions. Instead use !png_sig_cmp(), memcpy(), -and memset(), respectively. - -The function png_set_gray_1_2_4_to_8() was removed. It has been -deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with -png_set_expand_gray_1_2_4_to_8() because the former function also -expanded any tRNS chunk to an alpha channel. - -Macros for png_get_uint_16, png_get_uint_32, and png_get_int_32 -were added and are used by default instead of the corresponding -functions. Unfortunately, -from libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the -function) incorrectly returned a value of type png_uint_32. - -We changed the prototype for png_malloc() from - png_malloc(png_structp png_ptr, png_uint_32 size) -to - png_malloc(png_structp png_ptr, png_alloc_size_t size) - -This also applies to the prototype for the user replacement malloc_fn(). - -The png_calloc() function was added and is used in place of -of "png_malloc(); memset();" except in the case in png_read_png() -where the array consists of pointers; in this case a "for" loop is used -after the png_malloc() to set the pointers to NULL, to give robust. -behavior in case the application runs out of memory part-way through -the process. - -We changed the prototypes of png_get_compression_buffer_size() and -png_set_compression_buffer_size() to work with png_size_t instead of -png_uint_32. - -Support for numbered error messages was removed by default, since we -never got around to actually numbering the error messages. The function -png_set_strip_error_numbers() was removed from the library by default. - -The png_zalloc() and png_zfree() functions are no longer exported. -The png_zalloc() function no longer zeroes out the memory that it -allocates. Applications that called png_zalloc(png_ptr, number, size) -can call png_calloc(png_ptr, number*size) instead, and can call -png_free() instead of png_zfree(). - -Support for dithering was disabled by default in libpng-1.4.0, because -it has not been well tested and doesn't actually "dither". -The code was not -removed, however, and could be enabled by building libpng with -PNG_READ_DITHER_SUPPORTED defined. In libpng-1.4.2, this support -was re-enabled, but the function was renamed png_set_quantize() to -reflect more accurately what it actually does. At the same time, -the PNG_DITHER_[RED,GREEN_BLUE]_BITS macros were also renamed to -PNG_QUANTIZE_[RED,GREEN,BLUE]_BITS, and PNG_READ_DITHER_SUPPORTED -was renamed to PNG_READ_QUANTIZE_SUPPORTED. - -We removed the trailing '.' from the warning and error messages. - -.SH XI. Changes to Libpng from version 1.4.x to 1.5.x - -From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the -function) incorrectly returned a value of type png_uint_32. -The incorrect macro was removed from libpng-1.4.5. - -Checking for invalid palette index on write was added at libpng -1.5.10. If a pixel contains an invalid (out-of-range) index libpng issues -a benign error. This is enabled by default because this condition is an -error according to the PNG specification, Clause 11.3.2, but the error can -be ignored in each png_ptr with - - png_set_check_for_invalid_index(png_ptr, allowed); - - allowed - one of - 0: disable benign error (accept the - invalid data without warning). - 1: enable benign error (treat the - invalid data as an error or a - warning). - -If the error is ignored, or if png_benign_error() treats it as a warning, -any invalid pixels are decoded as opaque black by the decoder and written -as-is by the encoder. - -Retrieving the maximum palette index found was added at libpng-1.5.15. -This statement must appear after png_read_png() or png_read_image() while -reading, and after png_write_png() or png_write_image() while writing. - - int max_palette = png_get_palette_max(png_ptr, info_ptr); - -This will return the maximum palette index found in the image, or "\-1" if -the palette was not checked, or "0" if no palette was found. Note that this -does not account for any palette index used by ancillary chunks such as the -bKGD chunk; you must check those separately to determine the maximum -palette index actually used. - -There are no substantial API changes between the non-deprecated parts of -the 1.4.5 API and the 1.5.0 API; however, the ability to directly access -members of the main libpng control structures, png_struct and png_info, -deprecated in earlier versions of libpng, has been completely removed from -libpng 1.5. - -We no longer include zlib.h in png.h. The include statement has been moved -to pngstruct.h, where it is not accessible by applications. Applications that -need access to information in zlib.h will need to add the '#include "zlib.h"' -directive. It does not matter whether this is placed prior to or after -the '"#include png.h"' directive. - -The png_sprintf(), png_strcpy(), and png_strncpy() macros are no longer used -and were removed. - -We moved the png_strlen(), png_memcpy(), png_memset(), and png_memcmp() -macros into a private header file (pngpriv.h) that is not accessible to -applications. - -In png_get_iCCP, the type of "profile" was changed from png_charpp -to png_bytepp, and in png_set_iCCP, from png_charp to png_const_bytep. - -There are changes of form in png.h, including new and changed macros to -declare parts of the API. Some API functions with arguments that are -pointers to data not modified within the function have been corrected to -declare these arguments with PNG_CONST. - -Much of the internal use of C macros to control the library build has also -changed and some of this is visible in the exported header files, in -particular the use of macros to control data and API elements visible -during application compilation may require significant revision to -application code. (It is extremely rare for an application to do this.) - -Any program that compiled against libpng 1.4 and did not use deprecated -features or access internal library structures should compile and work -against libpng 1.5, except for the change in the prototype for -png_get_iCCP() and png_set_iCCP() API functions mentioned above. - -libpng 1.5.0 adds PNG_ PASS macros to help in the reading and writing of -interlaced images. The macros return the number of rows and columns in -each pass and information that can be used to de-interlace and (if -absolutely necessary) interlace an image. - -libpng 1.5.0 adds an API png_longjmp(png_ptr, value). This API calls -the application-provided png_longjmp_ptr on the internal, but application -initialized, longjmp buffer. It is provided as a convenience to avoid -the need to use the png_jmpbuf macro, which had the unnecessary side -effect of resetting the internal png_longjmp_ptr value. - -libpng 1.5.0 includes a complete fixed point API. By default this is -present along with the corresponding floating point API. In general the -fixed point API is faster and smaller than the floating point one because -the PNG file format used fixed point, not floating point. This applies -even if the library uses floating point in internal calculations. A new -macro, PNG_FLOATING_ARITHMETIC_SUPPORTED, reveals whether the library -uses floating point arithmetic (the default) or fixed point arithmetic -internally for performance critical calculations such as gamma correction. -In some cases, the gamma calculations may produce slightly different -results. This has changed the results in png_rgb_to_gray and in alpha -composition (png_set_background for example). This applies even if the -original image was already linear (gamma == 1.0) and, therefore, it is -not necessary to linearize the image. This is because libpng has *not* -been changed to optimize that case correctly, yet. - -Fixed point support for the sCAL chunk comes with an important caveat; -the sCAL specification uses a decimal encoding of floating point values -and the accuracy of PNG fixed point values is insufficient for -representation of these values. Consequently a "string" API -(png_get_sCAL_s and png_set_sCAL_s) is the only reliable way of reading -arbitrary sCAL chunks in the absence of either the floating point API or -internal floating point calculations. Starting with libpng-1.5.0, both -of these functions are present when PNG_sCAL_SUPPORTED is defined. Prior -to libpng-1.5.0, their presence also depended upon PNG_FIXED_POINT_SUPPORTED -being defined and PNG_FLOATING_POINT_SUPPORTED not being defined. - -Applications no longer need to include the optional distribution header -file pngusr.h or define the corresponding macros during application -build in order to see the correct variant of the libpng API. From 1.5.0 -application code can check for the corresponding _SUPPORTED macro: - -#ifdef PNG_INCH_CONVERSIONS_SUPPORTED - /* code that uses the inch conversion APIs. */ -#endif - -This macro will only be defined if the inch conversion functions have been -compiled into libpng. The full set of macros, and whether or not support -has been compiled in, are available in the header file pnglibconf.h. -This header file is specific to the libpng build. Notice that prior to -1.5.0 the _SUPPORTED macros would always have the default definition unless -reset by pngusr.h or by explicit settings on the compiler command line. -These settings may produce compiler warnings or errors in 1.5.0 because -of macro redefinition. - -Applications can now choose whether to use these macros or to call the -corresponding function by defining PNG_USE_READ_MACROS or -PNG_NO_USE_READ_MACROS before including png.h. Notice that this is -only supported from 1.5.0; defining PNG_NO_USE_READ_MACROS prior to 1.5.0 -will lead to a link failure. - -Prior to libpng-1.5.4, the zlib compressor used the same set of parameters -when compressing the IDAT data and textual data such as zTXt and iCCP. -In libpng-1.5.4 we reinitialized the zlib stream for each type of data. -We added five png_set_text_*() functions for setting the parameters to -use with textual data. - -Prior to libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -option was off by default, and slightly inaccurate scaling occurred. -This option can no longer be turned off, and the choice of accurate -or inaccurate 16-to-8 scaling is by using the new png_set_scale_16_to_8() -API for accurate scaling or the old png_set_strip_16_to_8() API for simple -chopping. In libpng-1.5.4, the PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED -macro became PNG_READ_SCALE_16_TO_8_SUPPORTED, and the PNG_READ_16_TO_8 -macro became PNG_READ_STRIP_16_TO_8_SUPPORTED, to enable the two -png_set_*_16_to_8() functions separately. - -Prior to libpng-1.5.4, the png_set_user_limits() function could only be -used to reduce the width and height limits from the value of -PNG_USER_WIDTH_MAX and PNG_USER_HEIGHT_MAX, although this document said -that it could be used to override them. Now this function will reduce or -increase the limits. - -Starting in libpng-1.5.10, the user limits can be set en masse with the -configuration option PNG_SAFE_LIMITS_SUPPORTED. If this option is enabled, -a set of "safe" limits is applied in pngpriv.h. These can be overridden by -application calls to png_set_user_limits(), png_set_user_chunk_cache_max(), -and/or png_set_user_malloc_max() that increase or decrease the limits. Also, -in libpng-1.5.10 the default width and height limits were increased -from 1,000,000 to 0x7ffffff (i.e., made unlimited). Therefore, the -limits are now - default safe - png_user_width_max 0x7fffffff 1,000,000 - png_user_height_max 0x7fffffff 1,000,000 - png_user_chunk_cache_max 0 (unlimited) 128 - png_user_chunk_malloc_max 0 (unlimited) 8,000,000 - -The png_set_option() function (and the "options" member of the png struct) was -added to libpng-1.5.15. - -The library now supports a complete fixed point implementation and can -thus be used on systems that have no floating point support or very -limited or slow support. Previously gamma correction, an essential part -of complete PNG support, required reasonably fast floating point. - -As part of this the choice of internal implementation has been made -independent of the choice of fixed versus floating point APIs and all the -missing fixed point APIs have been implemented. - -The exact mechanism used to control attributes of API functions has -changed, as described in the INSTALL file. - -A new test program, pngvalid, is provided in addition to pngtest. -pngvalid validates the arithmetic accuracy of the gamma correction -calculations and includes a number of validations of the file format. -A subset of the full range of tests is run when "make check" is done -(in the 'configure' build.) pngvalid also allows total allocated memory -usage to be evaluated and performs additional memory overwrite validation. - -Many changes to individual feature macros have been made. The following -are the changes most likely to be noticed by library builders who -configure libpng: - -1) All feature macros now have consistent naming: - -#define PNG_NO_feature turns the feature off -#define PNG_feature_SUPPORTED turns the feature on - -pnglibconf.h contains one line for each feature macro which is either: - -#define PNG_feature_SUPPORTED - -if the feature is supported or: - -/*#undef PNG_feature_SUPPORTED*/ - -if it is not. Library code consistently checks for the 'SUPPORTED' macro. -It does not, and libpng applications should not, check for the 'NO' macro -which will not normally be defined even if the feature is not supported. -The 'NO' macros are only used internally for setting or not setting the -corresponding 'SUPPORTED' macros. - -Compatibility with the old names is provided as follows: - -PNG_INCH_CONVERSIONS turns on PNG_INCH_CONVERSIONS_SUPPORTED - -And the following definitions disable the corresponding feature: - -PNG_SETJMP_NOT_SUPPORTED disables SETJMP -PNG_READ_TRANSFORMS_NOT_SUPPORTED disables READ_TRANSFORMS -PNG_NO_READ_COMPOSITED_NODIV disables READ_COMPOSITE_NODIV -PNG_WRITE_TRANSFORMS_NOT_SUPPORTED disables WRITE_TRANSFORMS -PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED disables READ_ANCILLARY_CHUNKS -PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED disables WRITE_ANCILLARY_CHUNKS - -Library builders should remove use of the above, inconsistent, names. - -2) Warning and error message formatting was previously conditional on -the STDIO feature. The library has been changed to use the -CONSOLE_IO feature instead. This means that if CONSOLE_IO is disabled -the library no longer uses the printf(3) functions, even though the -default read/write implementations use (FILE) style stdio.h functions. - -3) Three feature macros now control the fixed/floating point decisions: - -PNG_FLOATING_POINT_SUPPORTED enables the floating point APIs - -PNG_FIXED_POINT_SUPPORTED enables the fixed point APIs; however, in -practice these are normally required internally anyway (because the PNG -file format is fixed point), therefore in most cases PNG_NO_FIXED_POINT -merely stops the function from being exported. - -PNG_FLOATING_ARITHMETIC_SUPPORTED chooses between the internal floating -point implementation or the fixed point one. Typically the fixed point -implementation is larger and slower than the floating point implementation -on a system that supports floating point; however, it may be faster on a -system which lacks floating point hardware and therefore uses a software -emulation. - -4) Added PNG_{READ,WRITE}_INT_FUNCTIONS_SUPPORTED. This allows the -functions to read and write ints to be disabled independently of -PNG_USE_READ_MACROS, which allows libpng to be built with the functions -even though the default is to use the macros - this allows applications -to choose at app buildtime whether or not to use macros (previously -impossible because the functions weren't in the default build.) - -.SH XII. Changes to Libpng from version 1.5.x to 1.6.x - -A "simplified API" has been added (see documentation in png.h and a simple -example in contrib/examples/pngtopng.c). The new publicly visible API -includes the following: - - macros: - PNG_FORMAT_* - PNG_IMAGE_* - structures: - png_control - png_image - read functions - png_image_begin_read_from_file() - png_image_begin_read_from_stdio() - png_image_begin_read_from_memory() - png_image_finish_read() - png_image_free() - write functions - png_image_write_to_file() - png_image_write_to_stdio() - -Starting with libpng-1.6.0, you can configure libpng to prefix all exported -symbols, using the PNG_PREFIX macro. - -We no longer include string.h in png.h. The include statement has been moved -to pngpriv.h, where it is not accessible by applications. Applications that -need access to information in string.h must add an '#include ' -directive. It does not matter whether this is placed prior to or after -the '#include "png.h"' directive. - -The following API are now DEPRECATED: - png_info_init_3() - png_convert_to_rfc1123() which has been replaced - with png_convert_to_rfc1123_buffer() - png_malloc_default() - png_free_default() - png_reset_zstream() - -The following have been removed: - png_get_io_chunk_name(), which has been replaced - with png_get_io_chunk_type(). The new - function returns a 32-bit integer instead of - a string. - The png_sizeof(), png_strlen(), png_memcpy(), png_memcmp(), and - png_memset() macros are no longer used in the libpng sources and - have been removed. These had already been made invisible to applications - (i.e., defined in the private pngpriv.h header file) since libpng-1.5.0. - -The signatures of many exported functions were changed, such that - png_structp became png_structrp or png_const_structrp - png_infop became png_inforp or png_const_inforp -where "rp" indicates a "restricted pointer". - -Error detection in some chunks has improved; in particular the iCCP chunk -reader now does pretty complete validation of the basic format. Some bad -profiles that were previously accepted are now accepted with a warning or -rejected, depending upon the png_set_benign_errors() setting, in particular the -very old broken Microsoft/HP 3144-byte sRGB profile. Starting with -libpng-1.6.11, recognizing and checking sRGB profiles can be avoided by -means of - - #ifdef PNG_SKIP_sRGB_CHECK_PROFILE - png_set_option(png_ptr, PNG_SKIP_sRGB_CHECK_PROFILE, - PNG_OPTION_ON); - #endif - -It's not a good idea to do this if you are using the "simplified API", -which needs to be able to recognize an sRGB profile conveyed via the iCCP -chunk. - -The PNG spec requirement that only grayscale profiles may appear in images -with color type 0 or 4 and that even if the image only contains gray pixels, -only RGB profiles may appear in images with color type 2, 3, or 6, is now -enforced. The sRGB chunk is allowed to appear in images with any color type -and is interpreted by libpng to convey a one-tracer-curve profile or a -three-tracer-curve profile as appropriate. - -Prior to libpng-1.6.0 a warning would be issued if the iTXt chunk contained -an empty language field or an empty translated keyword. Both of these -are allowed by the PNG specification, so these warnings are no longer issued. - -The library now issues an error if the application attempts to set a -transform after it calls png_read_update_info() or if it attempts to call -both png_read_update_info() and png_start_read_image() or to call either -of them more than once. - -The default condition for benign_errors is now to treat benign errors as -warnings while reading and as errors while writing. - -The library now issues a warning if both background processing and RGB to -gray are used when gamma correction happens. As with previous versions of -the library the results are numerically very incorrect in this case. - -There are some minor arithmetic changes in some transforms such as -png_set_background(), that might be detected by certain regression tests. - -Unknown chunk handling has been improved internally, without any API change. -This adds more correct option control of the unknown handling, corrects -a pre-existing bug where the per-chunk 'keep' setting is ignored, and makes -it possible to skip IDAT chunks in the sequential reader. - -The machine-generated configure files are no longer included in branches -libpng16 and later of the GIT repository. They continue to be included -in the tarball releases, however. - -Libpng-1.6.0 through 1.6.2 used the CMF bytes at the beginning of the IDAT -stream to set the size of the sliding window for reading instead of using the -default 32-kbyte sliding window size. It was discovered that there are -hundreds of PNG files in the wild that have incorrect CMF bytes that caused -zlib to issue the "invalid distance too far back" error and reject the file. -Libpng-1.6.3 and later calculate their own safe CMF from the image dimensions, -provide a way to revert to the libpng-1.5.x behavior (ignoring the CMF bytes -and using a 32-kbyte sliding window), by using - - png_set_option(png_ptr, PNG_MAXIMUM_INFLATE_WINDOW, - PNG_OPTION_ON); - -and provide a tool (contrib/tools/pngfix) for rewriting a PNG file while -optimizing the CMF bytes in its IDAT chunk correctly. - -Libpng-1.6.0 and libpng-1.6.1 wrote uncompressed iTXt chunks with the wrong -length, which resulted in PNG files that cannot be read beyond the bad iTXt -chunk. This error was fixed in libpng-1.6.3, and a tool (called -contrib/tools/png-fix-itxt) has been added to the libpng distribution. - -.SH XIII. Detecting libpng - -The png_get_io_ptr() function has been present since libpng-0.88, has never -changed, and is unaffected by conditional compilation macros. It is the -best choice for use in configure scripts for detecting the presence of any -libpng version since 0.88. In an autoconf "configure.in" you could use - - AC_CHECK_LIB(png, png_get_io_ptr, ... - -.SH XV. Source code repository - -Since about February 2009, version 1.2.34, libpng has been under "git" source -control. The git repository was built from old libpng-x.y.z.tar.gz files -going back to version 0.70. You can access the git repository (read only) -at - - git://git.code.sf.net/p/libpng/code - -or you can browse it with a web browser by selecting the "code" button at - - https://sourceforge.net/projects/libpng - -Patches can be sent to glennrp at users.sourceforge.net or to -png-mng-implement at lists.sourceforge.net or you can upload them to -the libpng bug tracker at - - http://libpng.sourceforge.net - -We also accept patches built from the tar or zip distributions, and -simple verbal discriptions of bug fixes, reported either to the -SourceForge bug tracker, to the png-mng-implement at lists.sf.net -mailing list, or directly to glennrp. - -.SH XV. Coding style - -Our coding style is similar to the "Allman" style -(See http://en.wikipedia.org/wiki/Indent_style#Allman_style), with curly -braces on separate lines: - - if (condition) - { - action; - } - - else if (another condition) - { - another action; - } - -The braces can be omitted from simple one-line actions: - - if (condition) - return (0); - -We use 3-space indentation, except for continued statements which -are usually indented the same as the first line of the statement -plus four more spaces. - -For macro definitions we use 2-space indentation, always leaving the "#" -in the first column. - - #ifndef PNG_NO_FEATURE - # ifndef PNG_FEATURE_SUPPORTED - # define PNG_FEATURE_SUPPORTED - # endif - #endif - -Comments appear with the leading "/*" at the same indentation as -the statement that follows the comment: - - /* Single-line comment */ - statement; - - /* This is a multiple-line - * comment. - */ - statement; - -Very short comments can be placed after the end of the statement -to which they pertain: - - statement; /* comment */ - -We don't use C++ style ("//") comments. We have, however, -used them in the past in some now-abandoned MMX assembler -code. - -Functions and their curly braces are not indented, and -exported functions are marked with PNGAPI: - - /* This is a public function that is visible to - * application programmers. It does thus-and-so. - */ - void PNGAPI - png_exported_function(png_ptr, png_info, foo) - { - body; - } - -The return type and decorations are placed on a separate line -ahead of the function name, as illustrated above. - -The prototypes for all exported functions appear in png.h, -above the comment that says - - /* Maintainer: Put new public prototypes here ... */ - -We mark all non-exported functions with "/* PRIVATE */"": - - void /* PRIVATE */ - png_non_exported_function(png_ptr, png_info, foo) - { - body; - } - -The prototypes for non-exported functions (except for those in -pngtest) appear in -pngpriv.h -above the comment that says - - /* Maintainer: Put new private prototypes here ^ */ - -We put a space after the "sizeof" operator and we omit the -optional parentheses around its argument when the argument -is an expression, not a type name, and we always enclose the -sizeof operator, with its argument, in parentheses: - - (sizeof (png_uint_32)) - (sizeof array) - -Prior to libpng-1.6.0 we used a "png_sizeof()" macro, formatted as -though it were a function. - -To avoid polluting the global namespace, the names of all exported -functions and variables begin with "png_", and all publicly visible C -preprocessor macros begin with "PNG". We request that applications that -use libpng *not* begin any of their own symbols with either of these strings. - -We put a space after each comma and after each semicolon -in "for" statements, and we put spaces before and after each -C binary operator and after "for" or "while", and before -"?". We don't put a space between a typecast and the expression -being cast, nor do we put one between a function name and the -left parenthesis that follows it: - - for (i = 2; i > 0; \-\-i) - y[i] = a(x) + (int)b; - -We prefer #ifdef and #ifndef to #if defined() and #if !defined() -when there is only one macro being tested. We always use parentheses -with "defined". - -We prefer to express integers that are used as bit masks in hex format, -with an even number of lower-case hex digits (e.g., 0x00, 0xff, 0x0100). - -We prefer to use underscores in variable names rather than camelCase, except -for a few type names that we inherit from zlib.h. - -We prefer "if (something != 0)" and "if (something == 0)" -over "if (something)" and if "(!something)", respectively. - -We do not use the TAB character for indentation in the C sources. - -Lines do not exceed 80 characters. - -Other rules can be inferred by inspecting the libpng source. - -.SH XVI. Y2K Compliance in libpng - -June 12, 2014 - -Since the PNG Development group is an ad-hoc body, we can't make -an official declaration. - -This is your unofficial assurance that libpng from version 0.71 and -upward through 1.6.12 are Y2K compliant. It is my belief that earlier -versions were also Y2K compliant. - -Libpng only has two year fields. One is a 2-byte unsigned integer -that will hold years up to 65535. The other, which is deprecated, -holds the date in text format, and will hold years up to 9999. - -The integer is - "png_uint_16 year" in png_time_struct. - -The string is - "char time_buffer[29]" in png_struct. This is no longer used -in libpng-1.6.x and will be removed from libpng-1.7.0. - -There are seven time-related functions: - - png_convert_to_rfc_1123() in png.c - (formerly png_convert_to_rfc_1152() in error) - png_convert_from_struct_tm() in pngwrite.c, called - in pngwrite.c - png_convert_from_time_t() in pngwrite.c - png_get_tIME() in pngget.c - png_handle_tIME() in pngrutil.c, called in pngread.c - png_set_tIME() in pngset.c - png_write_tIME() in pngwutil.c, called in pngwrite.c - -All appear to handle dates properly in a Y2K environment. The -png_convert_from_time_t() function calls gmtime() to convert from system -clock time, which returns (year - 1900), which we properly convert to -the full 4-digit year. There is a possibility that applications using -libpng are not passing 4-digit years into the png_convert_to_rfc_1123() -function, or that they are incorrectly passing only a 2-digit year -instead of "year - 1900" into the png_convert_from_struct_tm() function, -but this is not under our control. The libpng documentation has always -stated that it works with 4-digit years, and the APIs have been -documented as such. - -The tIME chunk itself is also Y2K compliant. It uses a 2-byte unsigned -integer to hold the year, and can hold years as large as 65535. - -zlib, upon which libpng depends, is also Y2K compliant. It contains -no date-related code. - - - Glenn Randers-Pehrson - libpng maintainer - PNG Development Group - -.SH NOTE - -Note about libpng version numbers: - -Due to various miscommunications, unforeseen code incompatibilities -and occasional factors outside the authors' control, version numbering -on the library has not always been consistent and straightforward. -The following table summarizes matters since version 0.89c, which was -the first widely used release: - - source png.h png.h shared-lib - version string int version - ------- ------ ----- ---------- - 0.89c ("beta 3") 0.89 89 1.0.89 - 0.90 ("beta 4") 0.90 90 0.90 - 0.95 ("beta 5") 0.95 95 0.95 - 0.96 ("beta 6") 0.96 96 0.96 - 0.97b ("beta 7") 1.00.97 97 1.0.1 - 0.97c 0.97 97 2.0.97 - 0.98 0.98 98 2.0.98 - 0.99 0.99 98 2.0.99 - 0.99a-m 0.99 99 2.0.99 - 1.00 1.00 100 2.1.0 - 1.0.0 1.0.0 100 2.1.0 - 1.0.0 (from here on, the 100 2.1.0 - 1.0.1 png.h string is 10001 2.1.0 - 1.0.1a-e identical to the 10002 from here on, the - 1.0.2 source version) 10002 shared library is 2.V - 1.0.2a-b 10003 where V is the source - 1.0.1 10001 code version except as - 1.0.1a-e 10002 2.1.0.1a-e noted. - 1.0.2 10002 2.1.0.2 - 1.0.2a-b 10003 2.1.0.2a-b - 1.0.3 10003 2.1.0.3 - 1.0.3a-d 10004 2.1.0.3a-d - 1.0.4 10004 2.1.0.4 - 1.0.4a-f 10005 2.1.0.4a-f - 1.0.5 (+ 2 patches) 10005 2.1.0.5 - 1.0.5a-d 10006 2.1.0.5a-d - 1.0.5e-r 10100 2.1.0.5e-r - 1.0.5s-v 10006 2.1.0.5s-v - 1.0.6 (+ 3 patches) 10006 2.1.0.6 - 1.0.6d-g 10007 2.1.0.6d-g - 1.0.6h 10007 10.6h - 1.0.6i 10007 10.6i - 1.0.6j 10007 2.1.0.6j - 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 - 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 - 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 - 1.0.7 1 10007 2.1.0.7 - 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 - 1.0.8rc1 1 10008 2.1.0.8rc1 - 1.0.8 1 10008 2.1.0.8 - 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 - 1.0.9rc1 1 10009 2.1.0.9rc1 - 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 - 1.0.9rc2 1 10009 2.1.0.9rc2 - 1.0.9 1 10009 2.1.0.9 - 1.0.10beta1 1 10010 2.1.0.10beta1 - 1.0.10rc1 1 10010 2.1.0.10rc1 - 1.0.10 1 10010 2.1.0.10 - 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 - 1.0.11rc1 1 10011 2.1.0.11rc1 - 1.0.11 1 10011 2.1.0.11 - 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 - 1.0.12rc1 2 10012 2.1.0.12rc1 - 1.0.12 2 10012 2.1.0.12 - 1.1.0a-f - 10100 2.1.1.0a-f abandoned - 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 - 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 - 1.2.0rc1 3 10200 3.1.2.0rc1 - 1.2.0 3 10200 3.1.2.0 - 1.2.1beta-4 3 10201 3.1.2.1beta1-4 - 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 - 1.2.1 3 10201 3.1.2.1 - 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 - 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 - 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 - 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 - 1.0.13 10 10013 10.so.0.1.0.13 - 1.2.2 12 10202 12.so.0.1.2.2 - 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 - 1.2.3 12 10203 12.so.0.1.2.3 - 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 - 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 - 1.0.14 10 10014 10.so.0.1.0.14 - 1.2.4 13 10204 12.so.0.1.2.4 - 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 - 1.0.15rc1 10 10015 10.so.0.1.0.15rc1 - 1.0.15 10 10015 10.so.0.1.0.15 - 1.2.5 13 10205 12.so.0.1.2.5 - 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 - 1.2.6rc1-5 13 10206 12.so.0.1.2.6rc1-5 - 1.0.16 10 10016 10.so.0.1.0.16 - 1.2.6 13 10206 12.so.0.1.2.6 - 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 - 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - 1.0.17 10 10017 12.so.0.1.0.17 - 1.2.7 13 10207 12.so.0.1.2.7 - 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 - 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 - 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 - 1.0.18 10 10018 12.so.0.1.0.18 - 1.2.8 13 10208 12.so.0.1.2.8 - 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 - 1.2.9beta4-11 13 10209 12.so.0.9[.0] - 1.2.9rc1 13 10209 12.so.0.9[.0] - 1.2.9 13 10209 12.so.0.9[.0] - 1.2.10beta1-7 13 10210 12.so.0.10[.0] - 1.2.10rc1-2 13 10210 12.so.0.10[.0] - 1.2.10 13 10210 12.so.0.10[.0] - 1.4.0beta1-6 14 10400 14.so.0.0[.0] - 1.2.11beta1-4 13 10210 12.so.0.11[.0] - 1.4.0beta7-8 14 10400 14.so.0.0[.0] - 1.2.11 13 10211 12.so.0.11[.0] - 1.2.12 13 10212 12.so.0.12[.0] - 1.4.0beta9-14 14 10400 14.so.0.0[.0] - 1.2.13 13 10213 12.so.0.13[.0] - 1.4.0beta15-36 14 10400 14.so.0.0[.0] - 1.4.0beta37-87 14 10400 14.so.14.0[.0] - 1.4.0rc01 14 10400 14.so.14.0[.0] - 1.4.0beta88-109 14 10400 14.so.14.0[.0] - 1.4.0rc02-08 14 10400 14.so.14.0[.0] - 1.4.0 14 10400 14.so.14.0[.0] - 1.4.1beta01-03 14 10401 14.so.14.1[.0] - 1.4.1rc01 14 10401 14.so.14.1[.0] - 1.4.1beta04-12 14 10401 14.so.14.1[.0] - 1.4.1 14 10401 14.so.14.1[.0] - 1.4.2 14 10402 14.so.14.2[.0] - 1.4.3 14 10403 14.so.14.3[.0] - 1.4.4 14 10404 14.so.14.4[.0] - 1.5.0beta01-58 15 10500 15.so.15.0[.0] - 1.5.0rc01-07 15 10500 15.so.15.0[.0] - 1.5.0 15 10500 15.so.15.0[.0] - 1.5.1beta01-11 15 10501 15.so.15.1[.0] - 1.5.1rc01-02 15 10501 15.so.15.1[.0] - 1.5.1 15 10501 15.so.15.1[.0] - 1.5.2beta01-03 15 10502 15.so.15.2[.0] - 1.5.2rc01-03 15 10502 15.so.15.2[.0] - 1.5.2 15 10502 15.so.15.2[.0] - 1.5.3beta01-10 15 10503 15.so.15.3[.0] - 1.5.3rc01-02 15 10503 15.so.15.3[.0] - 1.5.3beta11 15 10503 15.so.15.3[.0] - 1.5.3 [omitted] - 1.5.4beta01-08 15 10504 15.so.15.4[.0] - 1.5.4rc01 15 10504 15.so.15.4[.0] - 1.5.4 15 10504 15.so.15.4[.0] - 1.5.5beta01-08 15 10505 15.so.15.5[.0] - 1.5.5rc01 15 10505 15.so.15.5[.0] - 1.5.5 15 10505 15.so.15.5[.0] - 1.5.6beta01-07 15 10506 15.so.15.6[.0] - 1.5.6rc01-03 15 10506 15.so.15.6[.0] - 1.5.6 15 10506 15.so.15.6[.0] - 1.5.7beta01-05 15 10507 15.so.15.7[.0] - 1.5.7rc01-03 15 10507 15.so.15.7[.0] - 1.5.7 15 10507 15.so.15.7[.0] - 1.6.0beta01-40 16 10600 16.so.16.0[.0] - 1.6.0rc01-08 16 10600 16.so.16.0[.0] - 1.6.0 16 10600 16.so.16.0[.0] - 1.6.1beta01-09 16 10601 16.so.16.1[.0] - 1.6.1rc01 16 10601 16.so.16.1[.0] - 1.6.1 16 10601 16.so.16.1[.0] - 1.6.2beta01 16 10602 16.so.16.2[.0] - 1.6.2rc01-06 16 10602 16.so.16.2[.0] - 1.6.2 16 10602 16.so.16.2[.0] - 1.6.3beta01-11 16 10603 16.so.16.3[.0] - 1.6.3rc01 16 10603 16.so.16.3[.0] - 1.6.3 16 10603 16.so.16.3[.0] - 1.6.4beta01-02 16 10604 16.so.16.4[.0] - 1.6.4rc01 16 10604 16.so.16.4[.0] - 1.6.4 16 10604 16.so.16.4[.0] - 1.6.5 16 10605 16.so.16.5[.0] - 1.6.6 16 10606 16.so.16.6[.0] - 1.6.7beta01-04 16 10607 16.so.16.7[.0] - 1.6.7rc01-02 16 10607 16.so.16.7[.0] - 1.6.7 16 10607 16.so.16.7[.0] - 1.6.8beta01-02 16 10608 16.so.16.8[.0] - 1.6.8rc01-02 16 10608 16.so.16.8[.0] - 1.6.8 16 10608 16.so.16.8[.0] - 1.6.9beta01-04 16 10609 16.so.16.9[.0] - 1.6.9rc01-02 16 10609 16.so.16.9[.0] - 1.6.9 16 10609 16.so.16.9[.0] - 1.6.10beta01-03 16 10610 16.so.16.10[.0] - 1.6.10rc01-03 16 10610 16.so.16.10[.0] - 1.6.10 16 10610 16.so.16.10[.0] - 1.6.11beta01-06 16 10611 16.so.16.11[.0] - 1.6.11rc01-02 16 10611 16.so.16.11[.0] - 1.6.11 16 10611 16.so.16.11[.0] - 1.6.12rc01 16 10612 16.so.16.12[.0] - 1.6.12 16 10612 16.so.16.12[.0] - -Henceforth the source version will match the shared-library minor -and patch numbers; the shared-library major version number will be -used for changes in backward compatibility, as it is intended. The -PNG_PNGLIB_VER macro, which is not used within libpng but is available -for applications, is an unsigned integer of the form xyyzz corresponding -to the source version x.y.z (leading zeros in y and z). Beta versions -were given the previous public release number plus a letter, until -version 1.0.6j; from then on they were given the upcoming public -release number plus "betaNN" or "rcN". - -.SH "SEE ALSO" -.BR "png"(5), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) - -.LP -.IR libpng : -.IP -http://libpng.sourceforge.net (follow the [DOWNLOAD] link) -http://www.libpng.org/pub/png - -.LP -.IR zlib : -.IP -(generally) at the same location as -.I libpng -or at -.br -ftp://ftp.info-zip.org/pub/infozip/zlib - -.LP -.IR PNG specification: RFC 2083 -.IP -(generally) at the same location as -.I libpng -or at -.br -ftp://ds.internic.net/rfc/rfc2083.txt -.br -or (as a W3C Recommendation) at -.br -http://www.w3.org/TR/REC-png.html - -.LP -In the case of any inconsistency between the PNG specification -and this library, the specification takes precedence. - -.SH AUTHORS -This man page: Glenn Randers-Pehrson - - -The contributing authors would like to thank all those who helped -with testing, bug fixes, and patience. This wouldn't have been -possible without all of you. - -Thanks to Frank J. T. Wojcik for helping with the documentation. - -Libpng version 1.6.12 - June 12, 2014: -Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. -Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). - -Supported by the PNG development group -.br -png-mng-implement at lists.sf.net -(subscription required; visit -png-mng-implement at lists.sourceforge.net (subscription required; visit -https://lists.sourceforge.net/lists/listinfo/png-mng-implement -to subscribe). - -.SH COPYRIGHT NOTICE, DISCLAIMER, and LICENSE: - -(This copy of the libpng notices is provided for your convenience. In case of -any discrepancy between this copy and the notices in the file png.h that is -included in the libpng distribution, the latter shall prevail.) - -If you modify libpng you may insert additional notices immediately following -this sentence. - -This code is released under the libpng license. - -libpng versions 1.2.6, August 15, 2004, through 1.6.12, June 12, 2014, are -Copyright (c) 2004,2006-2014 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.2.5 -with the following individual added to the list of Contributing Authors - - Cosmin Truta - -libpng versions 1.0.7, July 1, 2000, through 1.2.5 - October 3, 2002, are -Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are -distributed according to the same disclaimer and license as libpng-1.0.6 -with the following individuals added to the list of Contributing Authors - - Simon-Pierre Cadieux - Eric S. Raymond - Gilles Vollant - -and with the following additions to the disclaimer: - - There is no warranty against interference with your - enjoyment of the library or against infringement. - There is no warranty that our efforts or the library - will fulfill any of your particular purposes or needs. - This library is provided with all faults, and the entire - risk of satisfactory quality, performance, accuracy, and - effort is with the user. - -libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are -Copyright (c) 1998, 1999 Glenn Randers-Pehrson -Distributed according to the same disclaimer and license as libpng-0.96, -with the following individuals added to the list of Contributing Authors: - - Tom Lane - Glenn Randers-Pehrson - Willem van Schaik - -libpng versions 0.89, June 1996, through 0.96, May 1997, are -Copyright (c) 1996, 1997 Andreas Dilger -Distributed according to the same disclaimer and license as libpng-0.88, -with the following individuals added to the list of Contributing Authors: - - John Bowler - Kevin Bracey - Sam Bushell - Magnus Holmgren - Greg Roelofs - Tom Tanner - -libpng versions 0.5, May 1995, through 0.88, January 1996, are -Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. - -For the purposes of this copyright and license, "Contributing Authors" -is defined as the following set of individuals: - - Andreas Dilger - Dave Martindale - Guy Eric Schalnat - Paul Schmidt - Tim Wegner - -The PNG Reference Library is supplied "AS IS". The Contributing Authors -and Group 42, Inc. disclaim all warranties, expressed or implied, -including, without limitation, the warranties of merchantability and of -fitness for any purpose. The Contributing Authors and Group 42, Inc. -assume no liability for direct, indirect, incidental, special, exemplary, -or consequential damages, which may result from the use of the PNG -Reference Library, even if advised of the possibility of such damage. - -Permission is hereby granted to use, copy, modify, and distribute this -source code, or portions hereof, for any purpose, without fee, subject -to the following restrictions: - -1. The origin of this source code must not be misrepresented. - -2. Altered versions must be plainly marked as such and - must not be misrepresented as being the original source. - -3. This Copyright notice may not be removed or altered from - any source or altered source distribution. - -The Contributing Authors and Group 42, Inc. specifically permit, without -fee, and encourage the use of this source code as a component to -supporting the PNG file format in commercial products. If you use this -source code in a product, acknowledgment is not required but would be -appreciated. - - -A "png_get_copyright" function is available, for convenient use in "about" -boxes and the like: - - printf("%s",png_get_copyright(NULL)); - -Also, the PNG logo (in PNG format, of course) is supplied in the -files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31). - -Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a -certification mark of the Open Source Initiative. - -Glenn Randers-Pehrson -glennrp at users.sourceforge.net -June 12, 2014 - -.\" end of man page - diff --git a/png/libpng.pc.in b/png/libpng.pc.in deleted file mode 100755 index 3e7e2c5..0000000 --- a/png/libpng.pc.in +++ /dev/null @@ -1,11 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -includedir=@includedir@/libpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ - -Name: libpng -Description: Loads and saves PNG files -Version: @PNGLIB_VERSION@ -Libs: -L${libdir} -lpng@PNGLIB_MAJOR@@PNGLIB_MINOR@ -Libs.private: @LIBS@ -Cflags: -I${includedir} diff --git a/png/libpngpf.3 b/png/libpngpf.3 deleted file mode 100755 index 6ac6285..0000000 --- a/png/libpngpf.3 +++ /dev/null @@ -1,18 +0,0 @@ -.TH LIBPNGPF 3 "June 12, 2014" -.SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.6.12 -(private functions) -.SH SYNOPSIS -\fB#include \fI"pngpriv.h" - -\fBAs of libpng version \fP\fI1.5.1\fP\fB, this section is no longer \fP\fImaintained\fP\fB, now that the private function prototypes are hidden in pngpriv.h and not accessible to applications. Look in pngpriv.h for the prototypes and a short description of each \fIfunction. - -.SH DESCRIPTION -The functions previously listed here are used privately by libpng and are not -available for use by applications. They are not "exported" to applications -using shared libraries. - -.SH SEE ALSO -.BR "png"(5), " libpng"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) -.SH AUTHOR -Glenn Randers-Pehrson diff --git a/png/png.5 b/png/png.5 deleted file mode 100755 index 8f329fd..0000000 --- a/png/png.5 +++ /dev/null @@ -1,74 +0,0 @@ -.TH PNG 5 "June 12, 2014" -.SH NAME -png \- Portable Network Graphics (PNG) format -.SH DESCRIPTION -PNG (Portable Network Graphics) is an extensible file format for the -lossless, portable, well-compressed storage of raster images. PNG provides -a patent-free replacement for GIF and can also replace many -common uses of TIFF. Indexed-color, grayscale, and truecolor images are -supported, plus an optional alpha channel. Sample depths range from -1 to 16 bits. -.br - -PNG is designed to work well in online viewing applications, such as the -World Wide Web, so it is fully streamable with a progressive display -option. PNG is robust, providing both full file integrity checking and -fast, simple detection of common transmission errors. Also, PNG can store -gamma and chromaticity data for improved color matching on heterogeneous -platforms. - -.SH "SEE ALSO" -.BR "libpng"(3), " libpngpf"(3), " zlib"(3), " deflate"(5), " " and " zlib"(5) -.LP -PNG specification (second edition), November 2003: -.IP -.br - 8) - png_error(png_ptr, "Too many bytes for PNG signature"); - - png_ptr->sig_bytes = (png_byte)(num_bytes < 0 ? 0 : num_bytes); -} - -/* Checks whether the supplied bytes match the PNG signature. We allow - * checking less than the full 8-byte signature so that those apps that - * already read the first few bytes of a file to determine the file type - * can simply check the remaining bytes for extra assurance. Returns - * an integer less than, equal to, or greater than zero if sig is found, - * respectively, to be less than, to match, or be greater than the correct - * PNG signature (this is the same behavior as strcmp, memcmp, etc). - */ -int PNGAPI -png_sig_cmp(png_const_bytep sig, png_size_t start, png_size_t num_to_check) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - - if (num_to_check > 8) - num_to_check = 8; - - else if (num_to_check < 1) - return (-1); - - if (start > 7) - return (-1); - - if (start + num_to_check > 8) - num_to_check = 8 - start; - - return ((int)(memcmp(&sig[start], &png_signature[start], num_to_check))); -} - -#endif /* PNG_READ_SUPPORTED */ - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -/* Function to allocate memory for zlib */ -PNG_FUNCTION(voidpf /* PRIVATE */, -png_zalloc,(voidpf png_ptr, uInt items, uInt size),PNG_ALLOCATED) -{ - png_alloc_size_t num_bytes = size; - - if (png_ptr == NULL) - return NULL; - - if (items >= (~(png_alloc_size_t)0)/size) - { - png_warning (png_voidcast(png_structrp, png_ptr), - "Potential overflow in png_zalloc()"); - return NULL; - } - - num_bytes *= items; - return png_malloc_warn(png_voidcast(png_structrp, png_ptr), num_bytes); -} - -/* Function to free memory for zlib */ -void /* PRIVATE */ -png_zfree(voidpf png_ptr, voidpf ptr) -{ - png_free(png_voidcast(png_const_structrp,png_ptr), ptr); -} - -/* Reset the CRC variable to 32 bits of 1's. Care must be taken - * in case CRC is > 32 bits to leave the top bits 0. - */ -void /* PRIVATE */ -png_reset_crc(png_structrp png_ptr) -{ - /* The cast is safe because the crc is a 32 bit value. */ - png_ptr->crc = (png_uint_32)crc32(0, Z_NULL, 0); -} - -/* Calculate the CRC over a section of data. We can only pass as - * much data to this routine as the largest single buffer size. We - * also check that this data will actually be used before going to the - * trouble of calculating it. - */ -void /* PRIVATE */ -png_calculate_crc(png_structrp png_ptr, png_const_bytep ptr, png_size_t length) -{ - int need_crc = 1; - - if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)) - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - - /* 'uLong' is defined in zlib.h as unsigned long; this means that on some - * systems it is a 64 bit value. crc32, however, returns 32 bits so the - * following cast is safe. 'uInt' may be no more than 16 bits, so it is - * necessary to perform a loop here. - */ - if (need_crc && length > 0) - { - uLong crc = png_ptr->crc; /* Should never issue a warning */ - - do - { - uInt safe_length = (uInt)length; - if (safe_length == 0) - safe_length = (uInt)-1; /* evil, but safe */ - - crc = crc32(crc, ptr, safe_length); - - /* The following should never issue compiler warnings; if they do the - * target system has characteristics that will probably violate other - * assumptions within the libpng code. - */ - ptr += safe_length; - length -= safe_length; - } - while (length > 0); - - /* And the following is always safe because the crc is only 32 bits. */ - png_ptr->crc = (png_uint_32)crc; - } -} - -/* Check a user supplied version number, called from both read and write - * functions that create a png_struct. - */ -int -png_user_version_check(png_structrp png_ptr, png_const_charp user_png_ver) -{ - if (user_png_ver != NULL) - { - int i = 0; - - do - { - if (user_png_ver[i] != png_libpng_ver[i]) - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - } while (png_libpng_ver[i++]); - } - - else - png_ptr->flags |= PNG_FLAG_LIBRARY_MISMATCH; - - if (png_ptr->flags & PNG_FLAG_LIBRARY_MISMATCH) - { - /* Libpng 0.90 and later are binary incompatible with libpng 0.89, so - * we must recompile any applications that use any older library version. - * For versions after libpng 1.0, we will be compatible, so we need - * only check the first and third digits (note that when we reach version - * 1.10 we will need to check the fourth symbol, namely user_png_ver[3]). - */ - if (user_png_ver == NULL || user_png_ver[0] != png_libpng_ver[0] || - (user_png_ver[0] == '1' && (user_png_ver[2] != png_libpng_ver[2] || - user_png_ver[3] != png_libpng_ver[3])) || - (user_png_ver[0] == '0' && user_png_ver[2] < '9')) - { -#ifdef PNG_WARNINGS_SUPPORTED - size_t pos = 0; - char m[128]; - - pos = png_safecat(m, (sizeof m), pos, - "Application built with libpng-"); - pos = png_safecat(m, (sizeof m), pos, user_png_ver); - pos = png_safecat(m, (sizeof m), pos, " but running with "); - pos = png_safecat(m, (sizeof m), pos, png_libpng_ver); - PNG_UNUSED(pos) - - png_warning(png_ptr, m); -#endif - -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - png_ptr->flags = 0; -#endif - - return 0; - } - } - - /* Success return. */ - return 1; -} - -/* Generic function to create a png_struct for either read or write - this - * contains the common initialization. - */ -PNG_FUNCTION(png_structp /* PRIVATE */, -png_create_png_struct,(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) -{ - png_struct create_struct; -# ifdef PNG_SETJMP_SUPPORTED - jmp_buf create_jmp_buf; -# endif - - /* This temporary stack-allocated structure is used to provide a place to - * build enough context to allow the user provided memory allocator (if any) - * to be called. - */ - memset(&create_struct, 0, (sizeof create_struct)); - - /* Added at libpng-1.2.6 */ -# ifdef PNG_USER_LIMITS_SUPPORTED - create_struct.user_width_max = PNG_USER_WIDTH_MAX; - create_struct.user_height_max = PNG_USER_HEIGHT_MAX; - -# ifdef PNG_USER_CHUNK_CACHE_MAX - /* Added at libpng-1.2.43 and 1.4.0 */ - create_struct.user_chunk_cache_max = PNG_USER_CHUNK_CACHE_MAX; -# endif - -# ifdef PNG_USER_CHUNK_MALLOC_MAX - /* Added at libpng-1.2.43 and 1.4.1, required only for read but exists - * in png_struct regardless. - */ - create_struct.user_chunk_malloc_max = PNG_USER_CHUNK_MALLOC_MAX; -# endif -# endif - - /* The following two API calls simply set fields in png_struct, so it is safe - * to do them now even though error handling is not yet set up. - */ -# ifdef PNG_USER_MEM_SUPPORTED - png_set_mem_fn(&create_struct, mem_ptr, malloc_fn, free_fn); -# else - PNG_UNUSED(mem_ptr) - PNG_UNUSED(malloc_fn) - PNG_UNUSED(free_fn) -# endif - - /* (*error_fn) can return control to the caller after the error_ptr is set, - * this will result in a memory leak unless the error_fn does something - * extremely sophisticated. The design lacks merit but is implicit in the - * API. - */ - png_set_error_fn(&create_struct, error_ptr, error_fn, warn_fn); - -# ifdef PNG_SETJMP_SUPPORTED - if (!setjmp(create_jmp_buf)) - { - /* Temporarily fake out the longjmp information until we have - * successfully completed this function. This only works if we have - * setjmp() support compiled in, but it is safe - this stuff should - * never happen. - */ - create_struct.jmp_buf_ptr = &create_jmp_buf; - create_struct.jmp_buf_size = 0; /*stack allocation*/ - create_struct.longjmp_fn = longjmp; -# else - { -# endif - /* Call the general version checker (shared with read and write code): - */ - if (png_user_version_check(&create_struct, user_png_ver)) - { - png_structrp png_ptr = png_voidcast(png_structrp, - png_malloc_warn(&create_struct, (sizeof *png_ptr))); - - if (png_ptr != NULL) - { - /* png_ptr->zstream holds a back-pointer to the png_struct, so - * this can only be done now: - */ - create_struct.zstream.zalloc = png_zalloc; - create_struct.zstream.zfree = png_zfree; - create_struct.zstream.opaque = png_ptr; - -# ifdef PNG_SETJMP_SUPPORTED - /* Eliminate the local error handling: */ - create_struct.jmp_buf_ptr = NULL; - create_struct.jmp_buf_size = 0; - create_struct.longjmp_fn = 0; -# endif - - *png_ptr = create_struct; - - /* This is the successful return point */ - return png_ptr; - } - } - } - - /* A longjmp because of a bug in the application storage allocator or a - * simple failure to allocate the png_struct. - */ - return NULL; -} - -/* Allocate the memory for an info_struct for the application. */ -PNG_FUNCTION(png_infop,PNGAPI -png_create_info_struct,(png_const_structrp png_ptr),PNG_ALLOCATED) -{ - png_inforp info_ptr; - - png_debug(1, "in png_create_info_struct"); - - if (png_ptr == NULL) - return NULL; - - /* Use the internal API that does not (or at least should not) error out, so - * that this call always returns ok. The application typically sets up the - * error handling *after* creating the info_struct because this is the way it - * has always been done in 'example.c'. - */ - info_ptr = png_voidcast(png_inforp, png_malloc_base(png_ptr, - (sizeof *info_ptr))); - - if (info_ptr != NULL) - memset(info_ptr, 0, (sizeof *info_ptr)); - - return info_ptr; -} - -/* This function frees the memory associated with a single info struct. - * Normally, one would use either png_destroy_read_struct() or - * png_destroy_write_struct() to free an info struct, but this may be - * useful for some applications. From libpng 1.6.0 this function is also used - * internally to implement the png_info release part of the 'struct' destroy - * APIs. This ensures that all possible approaches free the same data (all of - * it). - */ -void PNGAPI -png_destroy_info_struct(png_const_structrp png_ptr, png_infopp info_ptr_ptr) -{ - png_inforp info_ptr = NULL; - - png_debug(1, "in png_destroy_info_struct"); - - if (png_ptr == NULL) - return; - - if (info_ptr_ptr != NULL) - info_ptr = *info_ptr_ptr; - - if (info_ptr != NULL) - { - /* Do this first in case of an error below; if the app implements its own - * memory management this can lead to png_free calling png_error, which - * will abort this routine and return control to the app error handler. - * An infinite loop may result if it then tries to free the same info - * ptr. - */ - *info_ptr_ptr = NULL; - - png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1); - memset(info_ptr, 0, (sizeof *info_ptr)); - png_free(png_ptr, info_ptr); - } -} - -/* Initialize the info structure. This is now an internal function (0.89) - * and applications using it are urged to use png_create_info_struct() - * instead. Use deprecated in 1.6.0, internal use removed (used internally it - * is just a memset). - * - * NOTE: it is almost inconceivable that this API is used because it bypasses - * the user-memory mechanism and the user error handling/warning mechanisms in - * those cases where it does anything other than a memset. - */ -PNG_FUNCTION(void,PNGAPI -png_info_init_3,(png_infopp ptr_ptr, png_size_t png_info_struct_size), - PNG_DEPRECATED) -{ - png_inforp info_ptr = *ptr_ptr; - - png_debug(1, "in png_info_init_3"); - - if (info_ptr == NULL) - return; - - if ((sizeof (png_info)) > png_info_struct_size) - { - *ptr_ptr = NULL; - /* The following line is why this API should not be used: */ - free(info_ptr); - info_ptr = png_voidcast(png_inforp, png_malloc_base(NULL, - (sizeof *info_ptr))); - *ptr_ptr = info_ptr; - } - - /* Set everything to 0 */ - memset(info_ptr, 0, (sizeof *info_ptr)); -} - -/* The following API is not called internally */ -void PNGAPI -png_data_freer(png_const_structrp png_ptr, png_inforp info_ptr, - int freer, png_uint_32 mask) -{ - png_debug(1, "in png_data_freer"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (freer == PNG_DESTROY_WILL_FREE_DATA) - info_ptr->free_me |= mask; - - else if (freer == PNG_USER_WILL_FREE_DATA) - info_ptr->free_me &= ~mask; - - else - png_error(png_ptr, "Unknown freer parameter in png_data_freer"); -} - -void PNGAPI -png_free_data(png_const_structrp png_ptr, png_inforp info_ptr, png_uint_32 mask, - int num) -{ - png_debug(1, "in png_free_data"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - -#ifdef PNG_TEXT_SUPPORTED - /* Free text item num or (if num == -1) all text items */ - if ((mask & PNG_FREE_TEXT) & info_ptr->free_me) - { - if (num != -1) - { - if (info_ptr->text && info_ptr->text[num].key) - { - png_free(png_ptr, info_ptr->text[num].key); - info_ptr->text[num].key = NULL; - } - } - - else - { - int i; - for (i = 0; i < info_ptr->num_text; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_TEXT, i); - png_free(png_ptr, info_ptr->text); - info_ptr->text = NULL; - info_ptr->num_text=0; - } - } -#endif - -#ifdef PNG_tRNS_SUPPORTED - /* Free any tRNS entry */ - if ((mask & PNG_FREE_TRNS) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->trans_alpha); - info_ptr->trans_alpha = NULL; - info_ptr->valid &= ~PNG_INFO_tRNS; - } -#endif - -#ifdef PNG_sCAL_SUPPORTED - /* Free any sCAL entry */ - if ((mask & PNG_FREE_SCAL) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->scal_s_width); - png_free(png_ptr, info_ptr->scal_s_height); - info_ptr->scal_s_width = NULL; - info_ptr->scal_s_height = NULL; - info_ptr->valid &= ~PNG_INFO_sCAL; - } -#endif - -#ifdef PNG_pCAL_SUPPORTED - /* Free any pCAL entry */ - if ((mask & PNG_FREE_PCAL) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->pcal_purpose); - png_free(png_ptr, info_ptr->pcal_units); - info_ptr->pcal_purpose = NULL; - info_ptr->pcal_units = NULL; - if (info_ptr->pcal_params != NULL) - { - unsigned int i; - for (i = 0; i < info_ptr->pcal_nparams; i++) - { - png_free(png_ptr, info_ptr->pcal_params[i]); - info_ptr->pcal_params[i] = NULL; - } - png_free(png_ptr, info_ptr->pcal_params); - info_ptr->pcal_params = NULL; - } - info_ptr->valid &= ~PNG_INFO_pCAL; - } -#endif - -#ifdef PNG_iCCP_SUPPORTED - /* Free any profile entry */ - if ((mask & PNG_FREE_ICCP) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->iccp_name); - png_free(png_ptr, info_ptr->iccp_profile); - info_ptr->iccp_name = NULL; - info_ptr->iccp_profile = NULL; - info_ptr->valid &= ~PNG_INFO_iCCP; - } -#endif - -#ifdef PNG_sPLT_SUPPORTED - /* Free a given sPLT entry, or (if num == -1) all sPLT entries */ - if ((mask & PNG_FREE_SPLT) & info_ptr->free_me) - { - if (num != -1) - { - if (info_ptr->splt_palettes) - { - png_free(png_ptr, info_ptr->splt_palettes[num].name); - png_free(png_ptr, info_ptr->splt_palettes[num].entries); - info_ptr->splt_palettes[num].name = NULL; - info_ptr->splt_palettes[num].entries = NULL; - } - } - - else - { - if (info_ptr->splt_palettes_num) - { - int i; - for (i = 0; i < info_ptr->splt_palettes_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_SPLT, (int)i); - - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes = NULL; - info_ptr->splt_palettes_num = 0; - } - info_ptr->valid &= ~PNG_INFO_sPLT; - } - } -#endif - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED - if ((mask & PNG_FREE_UNKN) & info_ptr->free_me) - { - if (num != -1) - { - if (info_ptr->unknown_chunks) - { - png_free(png_ptr, info_ptr->unknown_chunks[num].data); - info_ptr->unknown_chunks[num].data = NULL; - } - } - - else - { - int i; - - if (info_ptr->unknown_chunks_num) - { - for (i = 0; i < info_ptr->unknown_chunks_num; i++) - png_free_data(png_ptr, info_ptr, PNG_FREE_UNKN, (int)i); - - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks = NULL; - info_ptr->unknown_chunks_num = 0; - } - } - } -#endif - -#ifdef PNG_hIST_SUPPORTED - /* Free any hIST entry */ - if ((mask & PNG_FREE_HIST) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->hist); - info_ptr->hist = NULL; - info_ptr->valid &= ~PNG_INFO_hIST; - } -#endif - - /* Free any PLTE entry that was internally allocated */ - if ((mask & PNG_FREE_PLTE) & info_ptr->free_me) - { - png_free(png_ptr, info_ptr->palette); - info_ptr->palette = NULL; - info_ptr->valid &= ~PNG_INFO_PLTE; - info_ptr->num_palette = 0; - } - -#ifdef PNG_INFO_IMAGE_SUPPORTED - /* Free any image bits attached to the info structure */ - if ((mask & PNG_FREE_ROWS) & info_ptr->free_me) - { - if (info_ptr->row_pointers) - { - png_uint_32 row; - for (row = 0; row < info_ptr->height; row++) - { - png_free(png_ptr, info_ptr->row_pointers[row]); - info_ptr->row_pointers[row] = NULL; - } - png_free(png_ptr, info_ptr->row_pointers); - info_ptr->row_pointers = NULL; - } - info_ptr->valid &= ~PNG_INFO_IDAT; - } -#endif - - if (num != -1) - mask &= ~PNG_FREE_MUL; - - info_ptr->free_me &= ~mask; -} -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ - -/* This function returns a pointer to the io_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy() or png_read_destroy() are called. - */ -png_voidp PNGAPI -png_get_io_ptr(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return (NULL); - - return (png_ptr->io_ptr); -} - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -# ifdef PNG_STDIO_SUPPORTED -/* Initialize the default input/output functions for the PNG file. If you - * use your own read or write routines, you can call either png_set_read_fn() - * or png_set_write_fn() instead of png_init_io(). If you have defined - * PNG_NO_STDIO or otherwise disabled PNG_STDIO_SUPPORTED, you must use a - * function of your own because "FILE *" isn't necessarily available. - */ -void PNGAPI -png_init_io(png_structrp png_ptr, png_FILE_p fp) -{ - png_debug(1, "in png_init_io"); - - if (png_ptr == NULL) - return; - - png_ptr->io_ptr = (png_voidp)fp; -} -# endif - -#ifdef PNG_SAVE_INT_32_SUPPORTED -/* The png_save_int_32 function assumes integers are stored in two's - * complement format. If this isn't the case, then this routine needs to - * be modified to write data in two's complement format. Note that, - * the following works correctly even if png_int_32 has more than 32 bits - * (compare the more complex code required on read for sign extension.) - */ -void PNGAPI -png_save_int_32(png_bytep buf, png_int_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} -#endif - -# ifdef PNG_TIME_RFC1123_SUPPORTED -/* Convert the supplied time into an RFC 1123 string suitable for use in - * a "Creation Time" or other text-based time string. - */ -int PNGAPI -png_convert_to_rfc1123_buffer(char out[29], png_const_timep ptime) -{ - static PNG_CONST char short_months[12][4] = - {"Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; - - if (out == NULL) - return 0; - - if (ptime->year > 9999 /* RFC1123 limitation */ || - ptime->month == 0 || ptime->month > 12 || - ptime->day == 0 || ptime->day > 31 || - ptime->hour > 23 || ptime->minute > 59 || - ptime->second > 60) - return 0; - - { - size_t pos = 0; - char number_buf[5]; /* enough for a four-digit year */ - -# define APPEND_STRING(string) pos = png_safecat(out, 29, pos, (string)) -# define APPEND_NUMBER(format, value)\ - APPEND_STRING(PNG_FORMAT_NUMBER(number_buf, format, (value))) -# define APPEND(ch) if (pos < 28) out[pos++] = (ch) - - APPEND_NUMBER(PNG_NUMBER_FORMAT_u, (unsigned)ptime->day); - APPEND(' '); - APPEND_STRING(short_months[(ptime->month - 1)]); - APPEND(' '); - APPEND_NUMBER(PNG_NUMBER_FORMAT_u, ptime->year); - APPEND(' '); - APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->hour); - APPEND(':'); - APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->minute); - APPEND(':'); - APPEND_NUMBER(PNG_NUMBER_FORMAT_02u, (unsigned)ptime->second); - APPEND_STRING(" +0000"); /* This reliably terminates the buffer */ - -# undef APPEND -# undef APPEND_NUMBER -# undef APPEND_STRING - } - - return 1; -} - -# if PNG_LIBPNG_VER < 10700 -/* To do: remove the following from libpng-1.7 */ -/* Original API that uses a private buffer in png_struct. - * Deprecated because it causes png_struct to carry a spurious temporary - * buffer (png_struct::time_buffer), better to have the caller pass this in. - */ -png_const_charp PNGAPI -png_convert_to_rfc1123(png_structrp png_ptr, png_const_timep ptime) -{ - if (png_ptr != NULL) - { - /* The only failure above if png_ptr != NULL is from an invalid ptime */ - if (!png_convert_to_rfc1123_buffer(png_ptr->time_buffer, ptime)) - png_warning(png_ptr, "Ignoring invalid time value"); - - else - return png_ptr->time_buffer; - } - - return NULL; -} -# endif -# endif /* PNG_TIME_RFC1123_SUPPORTED */ - -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ - -png_const_charp PNGAPI -png_get_copyright(png_const_structrp png_ptr) -{ - PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ -#ifdef PNG_STRING_COPYRIGHT - return PNG_STRING_COPYRIGHT -#else -# ifdef __STDC__ - return PNG_STRING_NEWLINE \ - "libpng version 1.6.12 - June 12, 2014" PNG_STRING_NEWLINE \ - "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \ - "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \ - "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \ - PNG_STRING_NEWLINE; -# else - return "libpng version 1.6.12 - June 12, 2014\ - Copyright (c) 1998-2014 Glenn Randers-Pehrson\ - Copyright (c) 1996-1997 Andreas Dilger\ - Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc."; -# endif -#endif -} - -/* The following return the library version as a short string in the - * format 1.0.0 through 99.99.99zz. To get the version of *.h files - * used with your application, print out PNG_LIBPNG_VER_STRING, which - * is defined in png.h. - * Note: now there is no difference between png_get_libpng_ver() and - * png_get_header_ver(). Due to the version_nn_nn_nn typedef guard, - * it is guaranteed that png.c uses the correct version of png.h. - */ -png_const_charp PNGAPI -png_get_libpng_ver(png_const_structrp png_ptr) -{ - /* Version of *.c files used when building libpng */ - return png_get_header_ver(png_ptr); -} - -png_const_charp PNGAPI -png_get_header_ver(png_const_structrp png_ptr) -{ - /* Version of *.h files used when building libpng */ - PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ - return PNG_LIBPNG_VER_STRING; -} - -png_const_charp PNGAPI -png_get_header_version(png_const_structrp png_ptr) -{ - /* Returns longer string containing both version and date */ - PNG_UNUSED(png_ptr) /* Silence compiler warning about unused png_ptr */ -#ifdef __STDC__ - return PNG_HEADER_VERSION_STRING -# ifndef PNG_READ_SUPPORTED - " (NO READ SUPPORT)" -# endif - PNG_STRING_NEWLINE; -#else - return PNG_HEADER_VERSION_STRING; -#endif -} - -#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED -/* NOTE: this routine is not used internally! */ -/* Build a grayscale palette. Palette is assumed to be 1 << bit_depth - * large of png_color. This lets grayscale images be treated as - * paletted. Most useful for gamma correction and simplification - * of code. This API is not used internally. - */ -void PNGAPI -png_build_grayscale_palette(int bit_depth, png_colorp palette) -{ - int num_palette; - int color_inc; - int i; - int v; - - png_debug(1, "in png_do_build_grayscale_palette"); - - if (palette == NULL) - return; - - switch (bit_depth) - { - case 1: - num_palette = 2; - color_inc = 0xff; - break; - - case 2: - num_palette = 4; - color_inc = 0x55; - break; - - case 4: - num_palette = 16; - color_inc = 0x11; - break; - - case 8: - num_palette = 256; - color_inc = 1; - break; - - default: - num_palette = 0; - color_inc = 0; - break; - } - - for (i = 0, v = 0; i < num_palette; i++, v += color_inc) - { - palette[i].red = (png_byte)v; - palette[i].green = (png_byte)v; - palette[i].blue = (png_byte)v; - } -} -#endif - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED -int PNGAPI -png_handle_as_unknown(png_const_structrp png_ptr, png_const_bytep chunk_name) -{ - /* Check chunk_name and return "keep" value if it's on the list, else 0 */ - png_const_bytep p, p_end; - - if (png_ptr == NULL || chunk_name == NULL || png_ptr->num_chunk_list == 0) - return PNG_HANDLE_CHUNK_AS_DEFAULT; - - p_end = png_ptr->chunk_list; - p = p_end + png_ptr->num_chunk_list*5; /* beyond end */ - - /* The code is the fifth byte after each four byte string. Historically this - * code was always searched from the end of the list, this is no longer - * necessary because the 'set' routine handles duplicate entries correcty. - */ - do /* num_chunk_list > 0, so at least one */ - { - p -= 5; - - if (!memcmp(chunk_name, p, 4)) - return p[4]; - } - while (p > p_end); - - /* This means that known chunks should be processed and unknown chunks should - * be handled according to the value of png_ptr->unknown_default; this can be - * confusing because, as a result, there are two levels of defaulting for - * unknown chunks. - */ - return PNG_HANDLE_CHUNK_AS_DEFAULT; -} - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\ - defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) -int /* PRIVATE */ -png_chunk_unknown_handling(png_const_structrp png_ptr, png_uint_32 chunk_name) -{ - png_byte chunk_string[5]; - - PNG_CSTRING_FROM_CHUNK(chunk_string, chunk_name); - return png_handle_as_unknown(png_ptr, chunk_string); -} -#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */ -#endif /* SET_UNKNOWN_CHUNKS */ - -#ifdef PNG_READ_SUPPORTED -/* This function, added to libpng-1.0.6g, is untested. */ -int PNGAPI -png_reset_zstream(png_structrp png_ptr) -{ - if (png_ptr == NULL) - return Z_STREAM_ERROR; - - /* WARNING: this resets the window bits to the maximum! */ - return (inflateReset(&png_ptr->zstream)); -} -#endif /* PNG_READ_SUPPORTED */ - -/* This function was added to libpng-1.0.7 */ -png_uint_32 PNGAPI -png_access_version_number(void) -{ - /* Version of *.c files used when building libpng */ - return((png_uint_32)PNG_LIBPNG_VER); -} - - - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -/* Ensure that png_ptr->zstream.msg holds some appropriate error message string. - * If it doesn't 'ret' is used to set it to something appropriate, even in cases - * like Z_OK or Z_STREAM_END where the error code is apparently a success code. - */ -void /* PRIVATE */ -png_zstream_error(png_structrp png_ptr, int ret) -{ - /* Translate 'ret' into an appropriate error string, priority is given to the - * one in zstream if set. This always returns a string, even in cases like - * Z_OK or Z_STREAM_END where the error code is a success code. - */ - if (png_ptr->zstream.msg == NULL) switch (ret) - { - default: - case Z_OK: - png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return code"); - break; - - case Z_STREAM_END: - /* Normal exit */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected end of LZ stream"); - break; - - case Z_NEED_DICT: - /* This means the deflate stream did not have a dictionary; this - * indicates a bogus PNG. - */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("missing LZ dictionary"); - break; - - case Z_ERRNO: - /* gz APIs only: should not happen */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("zlib IO error"); - break; - - case Z_STREAM_ERROR: - /* internal libpng error */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("bad parameters to zlib"); - break; - - case Z_DATA_ERROR: - png_ptr->zstream.msg = PNGZ_MSG_CAST("damaged LZ stream"); - break; - - case Z_MEM_ERROR: - png_ptr->zstream.msg = PNGZ_MSG_CAST("insufficient memory"); - break; - - case Z_BUF_ERROR: - /* End of input or output; not a problem if the caller is doing - * incremental read or write. - */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("truncated"); - break; - - case Z_VERSION_ERROR: - png_ptr->zstream.msg = PNGZ_MSG_CAST("unsupported zlib version"); - break; - - case PNG_UNEXPECTED_ZLIB_RETURN: - /* Compile errors here mean that zlib now uses the value co-opted in - * pngpriv.h for PNG_UNEXPECTED_ZLIB_RETURN; update the switch above - * and change pngpriv.h. Note that this message is "... return", - * whereas the default/Z_OK one is "... return code". - */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("unexpected zlib return"); - break; - } -} - -/* png_convert_size: a PNGAPI but no longer in png.h, so deleted - * at libpng 1.5.5! - */ - -/* Added at libpng version 1.2.34 and 1.4.0 (moved from pngset.c) */ -#ifdef PNG_GAMMA_SUPPORTED /* always set if COLORSPACE */ -static int -png_colorspace_check_gamma(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_fixed_point gAMA, int from) - /* This is called to check a new gamma value against an existing one. The - * routine returns false if the new gamma value should not be written. - * - * 'from' says where the new gamma value comes from: - * - * 0: the new gamma value is the libpng estimate for an ICC profile - * 1: the new gamma value comes from a gAMA chunk - * 2: the new gamma value comes from an sRGB chunk - */ -{ - png_fixed_point gtest; - - if ((colorspace->flags & PNG_COLORSPACE_HAVE_GAMMA) != 0 && - (!png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) || - png_gamma_significant(gtest))) - { - /* Either this is an sRGB image, in which case the calculated gamma - * approximation should match, or this is an image with a profile and the - * value libpng calculates for the gamma of the profile does not match the - * value recorded in the file. The former, sRGB, case is an error, the - * latter is just a warning. - */ - if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0 || from == 2) - { - png_chunk_report(png_ptr, "gamma value does not match sRGB", - PNG_CHUNK_ERROR); - /* Do not overwrite an sRGB value */ - return from == 2; - } - - else /* sRGB tag not involved */ - { - png_chunk_report(png_ptr, "gamma value does not match libpng estimate", - PNG_CHUNK_WARNING); - return from == 1; - } - } - - return 1; -} - -void /* PRIVATE */ -png_colorspace_set_gamma(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_fixed_point gAMA) -{ - /* Changed in libpng-1.5.4 to limit the values to ensure overflow can't - * occur. Since the fixed point representation is assymetrical it is - * possible for 1/gamma to overflow the limit of 21474 and this means the - * gamma value must be at least 5/100000 and hence at most 20000.0. For - * safety the limits here are a little narrower. The values are 0.00016 to - * 6250.0, which are truly ridiculous gamma values (and will produce - * displays that are all black or all white.) - * - * In 1.6.0 this test replaces the ones in pngrutil.c, in the gAMA chunk - * handling code, which only required the value to be >0. - */ - png_const_charp errmsg; - - if (gAMA < 16 || gAMA > 625000000) - errmsg = "gamma value out of range"; - -# ifdef PNG_READ_gAMA_SUPPORTED - /* Allow the application to set the gamma value more than once */ - else if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && - (colorspace->flags & PNG_COLORSPACE_FROM_gAMA) != 0) - errmsg = "duplicate"; -# endif - - /* Do nothing if the colorspace is already invalid */ - else if (colorspace->flags & PNG_COLORSPACE_INVALID) - return; - - else - { - if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA, 1/*from gAMA*/)) - { - /* Store this gamma value. */ - colorspace->gamma = gAMA; - colorspace->flags |= - (PNG_COLORSPACE_HAVE_GAMMA | PNG_COLORSPACE_FROM_gAMA); - } - - /* At present if the check_gamma test fails the gamma of the colorspace is - * not updated however the colorspace is not invalidated. This - * corresponds to the case where the existing gamma comes from an sRGB - * chunk or profile. An error message has already been output. - */ - return; - } - - /* Error exit - errmsg has been set. */ - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_chunk_report(png_ptr, errmsg, PNG_CHUNK_WRITE_ERROR); -} - -void /* PRIVATE */ -png_colorspace_sync_info(png_const_structrp png_ptr, png_inforp info_ptr) -{ - if (info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) - { - /* Everything is invalid */ - info_ptr->valid &= ~(PNG_INFO_gAMA|PNG_INFO_cHRM|PNG_INFO_sRGB| - PNG_INFO_iCCP); - -# ifdef PNG_COLORSPACE_SUPPORTED - /* Clean up the iCCP profile now if it won't be used. */ - png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, -1/*not used*/); -# else - PNG_UNUSED(png_ptr) -# endif - } - - else - { -# ifdef PNG_COLORSPACE_SUPPORTED - /* Leave the INFO_iCCP flag set if the pngset.c code has already set - * it; this allows a PNG to contain a profile which matches sRGB and - * yet still have that profile retrievable by the application. - */ - if (info_ptr->colorspace.flags & PNG_COLORSPACE_MATCHES_sRGB) - info_ptr->valid |= PNG_INFO_sRGB; - - else - info_ptr->valid &= ~PNG_INFO_sRGB; - - if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) - info_ptr->valid |= PNG_INFO_cHRM; - - else - info_ptr->valid &= ~PNG_INFO_cHRM; -# endif - - if (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) - info_ptr->valid |= PNG_INFO_gAMA; - - else - info_ptr->valid &= ~PNG_INFO_gAMA; - } -} - -#ifdef PNG_READ_SUPPORTED -void /* PRIVATE */ -png_colorspace_sync(png_const_structrp png_ptr, png_inforp info_ptr) -{ - if (info_ptr == NULL) /* reduce code size; check here not in the caller */ - return; - - info_ptr->colorspace = png_ptr->colorspace; - png_colorspace_sync_info(png_ptr, info_ptr); -} -#endif -#endif - -#ifdef PNG_COLORSPACE_SUPPORTED -/* Added at libpng-1.5.5 to support read and write of true CIEXYZ values for - * cHRM, as opposed to using chromaticities. These internal APIs return - * non-zero on a parameter error. The X, Y and Z values are required to be - * positive and less than 1.0. - */ -static int -png_xy_from_XYZ(png_xy *xy, const png_XYZ *XYZ) -{ - png_int_32 d, dwhite, whiteX, whiteY; - - d = XYZ->red_X + XYZ->red_Y + XYZ->red_Z; - if (!png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d)) return 1; - if (!png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d)) return 1; - dwhite = d; - whiteX = XYZ->red_X; - whiteY = XYZ->red_Y; - - d = XYZ->green_X + XYZ->green_Y + XYZ->green_Z; - if (!png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d)) return 1; - if (!png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d)) return 1; - dwhite += d; - whiteX += XYZ->green_X; - whiteY += XYZ->green_Y; - - d = XYZ->blue_X + XYZ->blue_Y + XYZ->blue_Z; - if (!png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d)) return 1; - if (!png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d)) return 1; - dwhite += d; - whiteX += XYZ->blue_X; - whiteY += XYZ->blue_Y; - - /* The reference white is simply the sum of the end-point (X,Y,Z) vectors, - * thus: - */ - if (!png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite)) return 1; - if (!png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite)) return 1; - - return 0; -} - -static int -png_XYZ_from_xy(png_XYZ *XYZ, const png_xy *xy) -{ - png_fixed_point red_inverse, green_inverse, blue_scale; - png_fixed_point left, right, denominator; - - /* Check xy and, implicitly, z. Note that wide gamut color spaces typically - * have end points with 0 tristimulus values (these are impossible end - * points, but they are used to cover the possible colors.) - */ - if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1; - if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1; - if (xy->greenx < 0 || xy->greenx > PNG_FP_1) return 1; - if (xy->greeny < 0 || xy->greeny > PNG_FP_1-xy->greenx) return 1; - if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1; - if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1; - if (xy->whitex < 0 || xy->whitex > PNG_FP_1) return 1; - if (xy->whitey < 0 || xy->whitey > PNG_FP_1-xy->whitex) return 1; - - /* The reverse calculation is more difficult because the original tristimulus - * value had 9 independent values (red,green,blue)x(X,Y,Z) however only 8 - * derived values were recorded in the cHRM chunk; - * (red,green,blue,white)x(x,y). This loses one degree of freedom and - * therefore an arbitrary ninth value has to be introduced to undo the - * original transformations. - * - * Think of the original end-points as points in (X,Y,Z) space. The - * chromaticity values (c) have the property: - * - * C - * c = --------- - * X + Y + Z - * - * For each c (x,y,z) from the corresponding original C (X,Y,Z). Thus the - * three chromaticity values (x,y,z) for each end-point obey the - * relationship: - * - * x + y + z = 1 - * - * This describes the plane in (X,Y,Z) space that intersects each axis at the - * value 1.0; call this the chromaticity plane. Thus the chromaticity - * calculation has scaled each end-point so that it is on the x+y+z=1 plane - * and chromaticity is the intersection of the vector from the origin to the - * (X,Y,Z) value with the chromaticity plane. - * - * To fully invert the chromaticity calculation we would need the three - * end-point scale factors, (red-scale, green-scale, blue-scale), but these - * were not recorded. Instead we calculated the reference white (X,Y,Z) and - * recorded the chromaticity of this. The reference white (X,Y,Z) would have - * given all three of the scale factors since: - * - * color-C = color-c * color-scale - * white-C = red-C + green-C + blue-C - * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale - * - * But cHRM records only white-x and white-y, so we have lost the white scale - * factor: - * - * white-C = white-c*white-scale - * - * To handle this the inverse transformation makes an arbitrary assumption - * about white-scale: - * - * Assume: white-Y = 1.0 - * Hence: white-scale = 1/white-y - * Or: red-Y + green-Y + blue-Y = 1.0 - * - * Notice the last statement of the assumption gives an equation in three of - * the nine values we want to calculate. 8 more equations come from the - * above routine as summarised at the top above (the chromaticity - * calculation): - * - * Given: color-x = color-X / (color-X + color-Y + color-Z) - * Hence: (color-x - 1)*color-X + color.x*color-Y + color.x*color-Z = 0 - * - * This is 9 simultaneous equations in the 9 variables "color-C" and can be - * solved by Cramer's rule. Cramer's rule requires calculating 10 9x9 matrix - * determinants, however this is not as bad as it seems because only 28 of - * the total of 90 terms in the various matrices are non-zero. Nevertheless - * Cramer's rule is notoriously numerically unstable because the determinant - * calculation involves the difference of large, but similar, numbers. It is - * difficult to be sure that the calculation is stable for real world values - * and it is certain that it becomes unstable where the end points are close - * together. - * - * So this code uses the perhaps slightly less optimal but more - * understandable and totally obvious approach of calculating color-scale. - * - * This algorithm depends on the precision in white-scale and that is - * (1/white-y), so we can immediately see that as white-y approaches 0 the - * accuracy inherent in the cHRM chunk drops off substantially. - * - * libpng arithmetic: a simple invertion of the above equations - * ------------------------------------------------------------ - * - * white_scale = 1/white-y - * white-X = white-x * white-scale - * white-Y = 1.0 - * white-Z = (1 - white-x - white-y) * white_scale - * - * white-C = red-C + green-C + blue-C - * = red-c*red-scale + green-c*green-scale + blue-c*blue-scale - * - * This gives us three equations in (red-scale,green-scale,blue-scale) where - * all the coefficients are now known: - * - * red-x*red-scale + green-x*green-scale + blue-x*blue-scale - * = white-x/white-y - * red-y*red-scale + green-y*green-scale + blue-y*blue-scale = 1 - * red-z*red-scale + green-z*green-scale + blue-z*blue-scale - * = (1 - white-x - white-y)/white-y - * - * In the last equation color-z is (1 - color-x - color-y) so we can add all - * three equations together to get an alternative third: - * - * red-scale + green-scale + blue-scale = 1/white-y = white-scale - * - * So now we have a Cramer's rule solution where the determinants are just - * 3x3 - far more tractible. Unfortunately 3x3 determinants still involve - * multiplication of three coefficients so we can't guarantee to avoid - * overflow in the libpng fixed point representation. Using Cramer's rule in - * floating point is probably a good choice here, but it's not an option for - * fixed point. Instead proceed to simplify the first two equations by - * eliminating what is likely to be the largest value, blue-scale: - * - * blue-scale = white-scale - red-scale - green-scale - * - * Hence: - * - * (red-x - blue-x)*red-scale + (green-x - blue-x)*green-scale = - * (white-x - blue-x)*white-scale - * - * (red-y - blue-y)*red-scale + (green-y - blue-y)*green-scale = - * 1 - blue-y*white-scale - * - * And now we can trivially solve for (red-scale,green-scale): - * - * green-scale = - * (white-x - blue-x)*white-scale - (red-x - blue-x)*red-scale - * ----------------------------------------------------------- - * green-x - blue-x - * - * red-scale = - * 1 - blue-y*white-scale - (green-y - blue-y) * green-scale - * --------------------------------------------------------- - * red-y - blue-y - * - * Hence: - * - * red-scale = - * ( (green-x - blue-x) * (white-y - blue-y) - - * (green-y - blue-y) * (white-x - blue-x) ) / white-y - * ------------------------------------------------------------------------- - * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x) - * - * green-scale = - * ( (red-y - blue-y) * (white-x - blue-x) - - * (red-x - blue-x) * (white-y - blue-y) ) / white-y - * ------------------------------------------------------------------------- - * (green-x - blue-x)*(red-y - blue-y)-(green-y - blue-y)*(red-x - blue-x) - * - * Accuracy: - * The input values have 5 decimal digits of accuracy. The values are all in - * the range 0 < value < 1, so simple products are in the same range but may - * need up to 10 decimal digits to preserve the original precision and avoid - * underflow. Because we are using a 32-bit signed representation we cannot - * match this; the best is a little over 9 decimal digits, less than 10. - * - * The approach used here is to preserve the maximum precision within the - * signed representation. Because the red-scale calculation above uses the - * difference between two products of values that must be in the range -1..+1 - * it is sufficient to divide the product by 7; ceil(100,000/32767*2). The - * factor is irrelevant in the calculation because it is applied to both - * numerator and denominator. - * - * Note that the values of the differences of the products of the - * chromaticities in the above equations tend to be small, for example for - * the sRGB chromaticities they are: - * - * red numerator: -0.04751 - * green numerator: -0.08788 - * denominator: -0.2241 (without white-y multiplication) - * - * The resultant Y coefficients from the chromaticities of some widely used - * color space definitions are (to 15 decimal places): - * - * sRGB - * 0.212639005871510 0.715168678767756 0.072192315360734 - * Kodak ProPhoto - * 0.288071128229293 0.711843217810102 0.000085653960605 - * Adobe RGB - * 0.297344975250536 0.627363566255466 0.075291458493998 - * Adobe Wide Gamut RGB - * 0.258728243040113 0.724682314948566 0.016589442011321 - */ - /* By the argument, above overflow should be impossible here. The return - * value of 2 indicates an internal error to the caller. - */ - if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7)) - return 2; - if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7)) - return 2; - denominator = left - right; - - /* Now find the red numerator. */ - if (!png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7)) - return 2; - if (!png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7)) - return 2; - - /* Overflow is possible here and it indicates an extreme set of PNG cHRM - * chunk values. This calculation actually returns the reciprocal of the - * scale value because this allows us to delay the multiplication of white-y - * into the denominator, which tends to produce a small number. - */ - if (!png_muldiv(&red_inverse, xy->whitey, denominator, left-right) || - red_inverse <= xy->whitey /* r+g+b scales = white scale */) - return 1; - - /* Similarly for green_inverse: */ - if (!png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7)) - return 2; - if (!png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7)) - return 2; - if (!png_muldiv(&green_inverse, xy->whitey, denominator, left-right) || - green_inverse <= xy->whitey) - return 1; - - /* And the blue scale, the checks above guarantee this can't overflow but it - * can still produce 0 for extreme cHRM values. - */ - blue_scale = png_reciprocal(xy->whitey) - png_reciprocal(red_inverse) - - png_reciprocal(green_inverse); - if (blue_scale <= 0) return 1; - - - /* And fill in the png_XYZ: */ - if (!png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse)) return 1; - if (!png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse)) return 1; - if (!png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1, - red_inverse)) - return 1; - - if (!png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse)) - return 1; - if (!png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse)) - return 1; - if (!png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1, - green_inverse)) - return 1; - - if (!png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1)) return 1; - if (!png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1)) return 1; - if (!png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale, - PNG_FP_1)) - return 1; - - return 0; /*success*/ -} - -static int -png_XYZ_normalize(png_XYZ *XYZ) -{ - png_int_32 Y; - - if (XYZ->red_Y < 0 || XYZ->green_Y < 0 || XYZ->blue_Y < 0 || - XYZ->red_X < 0 || XYZ->green_X < 0 || XYZ->blue_X < 0 || - XYZ->red_Z < 0 || XYZ->green_Z < 0 || XYZ->blue_Z < 0) - return 1; - - /* Normalize by scaling so the sum of the end-point Y values is PNG_FP_1. - * IMPLEMENTATION NOTE: ANSI requires signed overflow not to occur, therefore - * relying on addition of two positive values producing a negative one is not - * safe. - */ - Y = XYZ->red_Y; - if (0x7fffffff - Y < XYZ->green_X) return 1; - Y += XYZ->green_Y; - if (0x7fffffff - Y < XYZ->blue_X) return 1; - Y += XYZ->blue_Y; - - if (Y != PNG_FP_1) - { - if (!png_muldiv(&XYZ->red_X, XYZ->red_X, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->red_Y, XYZ->red_Y, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->red_Z, XYZ->red_Z, PNG_FP_1, Y)) return 1; - - if (!png_muldiv(&XYZ->green_X, XYZ->green_X, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->green_Y, XYZ->green_Y, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->green_Z, XYZ->green_Z, PNG_FP_1, Y)) return 1; - - if (!png_muldiv(&XYZ->blue_X, XYZ->blue_X, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->blue_Y, XYZ->blue_Y, PNG_FP_1, Y)) return 1; - if (!png_muldiv(&XYZ->blue_Z, XYZ->blue_Z, PNG_FP_1, Y)) return 1; - } - - return 0; -} - -static int -png_colorspace_endpoints_match(const png_xy *xy1, const png_xy *xy2, int delta) -{ - /* Allow an error of +/-0.01 (absolute value) on each chromaticity */ - return !(PNG_OUT_OF_RANGE(xy1->whitex, xy2->whitex,delta) || - PNG_OUT_OF_RANGE(xy1->whitey, xy2->whitey,delta) || - PNG_OUT_OF_RANGE(xy1->redx, xy2->redx, delta) || - PNG_OUT_OF_RANGE(xy1->redy, xy2->redy, delta) || - PNG_OUT_OF_RANGE(xy1->greenx, xy2->greenx,delta) || - PNG_OUT_OF_RANGE(xy1->greeny, xy2->greeny,delta) || - PNG_OUT_OF_RANGE(xy1->bluex, xy2->bluex, delta) || - PNG_OUT_OF_RANGE(xy1->bluey, xy2->bluey, delta)); -} - -/* Added in libpng-1.6.0, a different check for the validity of a set of cHRM - * chunk chromaticities. Earlier checks used to simply look for the overflow - * condition (where the determinant of the matrix to solve for XYZ ends up zero - * because the chromaticity values are not all distinct.) Despite this it is - * theoretically possible to produce chromaticities that are apparently valid - * but that rapidly degrade to invalid, potentially crashing, sets because of - * arithmetic inaccuracies when calculations are performed on them. The new - * check is to round-trip xy -> XYZ -> xy and then check that the result is - * within a small percentage of the original. - */ -static int -png_colorspace_check_xy(png_XYZ *XYZ, const png_xy *xy) -{ - int result; - png_xy xy_test; - - /* As a side-effect this routine also returns the XYZ endpoints. */ - result = png_XYZ_from_xy(XYZ, xy); - if (result != 0) return result; - - result = png_xy_from_XYZ(&xy_test, XYZ); - if (result != 0) return result; - - if (png_colorspace_endpoints_match(xy, &xy_test, - 5/*actually, the math is pretty accurate*/)) - return 0; - - /* Too much slip */ - return 1; -} - -/* This is the check going the other way. The XYZ is modified to normalize it - * (another side-effect) and the xy chromaticities are returned. - */ -static int -png_colorspace_check_XYZ(png_xy *xy, png_XYZ *XYZ) -{ - int result; - png_XYZ XYZtemp; - - result = png_XYZ_normalize(XYZ); - if (result != 0) return result; - - result = png_xy_from_XYZ(xy, XYZ); - if (result != 0) return result; - - XYZtemp = *XYZ; - return png_colorspace_check_xy(&XYZtemp, xy); -} - -/* Used to check for an endpoint match against sRGB */ -static const png_xy sRGB_xy = /* From ITU-R BT.709-3 */ -{ - /* color x y */ - /* red */ 64000, 33000, - /* green */ 30000, 60000, - /* blue */ 15000, 6000, - /* white */ 31270, 32900 -}; - -static int -png_colorspace_set_xy_and_XYZ(png_const_structrp png_ptr, - png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ, - int preferred) -{ - if (colorspace->flags & PNG_COLORSPACE_INVALID) - return 0; - - /* The consistency check is performed on the chromaticities; this factors out - * variations because of the normalization (or not) of the end point Y - * values. - */ - if (preferred < 2 && (colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) - { - /* The end points must be reasonably close to any we already have. The - * following allows an error of up to +/-.001 - */ - if (!png_colorspace_endpoints_match(xy, &colorspace->end_points_xy, 100)) - { - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_benign_error(png_ptr, "inconsistent chromaticities"); - return 0; /* failed */ - } - - /* Only overwrite with preferred values */ - if (preferred == 0) - return 1; /* ok, but no change */ - } - - colorspace->end_points_xy = *xy; - colorspace->end_points_XYZ = *XYZ; - colorspace->flags |= PNG_COLORSPACE_HAVE_ENDPOINTS; - - /* The end points are normally quoted to two decimal digits, so allow +/-0.01 - * on this test. - */ - if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000)) - colorspace->flags |= PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB; - - else - colorspace->flags &= PNG_COLORSPACE_CANCEL( - PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB); - - return 2; /* ok and changed */ -} - -int /* PRIVATE */ -png_colorspace_set_chromaticities(png_const_structrp png_ptr, - png_colorspacerp colorspace, const png_xy *xy, int preferred) -{ - /* We must check the end points to ensure they are reasonable - in the past - * color management systems have crashed as a result of getting bogus - * colorant values, while this isn't the fault of libpng it is the - * responsibility of libpng because PNG carries the bomb and libpng is in a - * position to protect against it. - */ - png_XYZ XYZ; - - switch (png_colorspace_check_xy(&XYZ, xy)) - { - case 0: /* success */ - return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, xy, &XYZ, - preferred); - - case 1: - /* We can't invert the chromaticities so we can't produce value XYZ - * values. Likely as not a color management system will fail too. - */ - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_benign_error(png_ptr, "invalid chromaticities"); - break; - - default: - /* libpng is broken; this should be a warning but if it happens we - * want error reports so for the moment it is an error. - */ - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_error(png_ptr, "internal error checking chromaticities"); - break; - } - - return 0; /* failed */ -} - -int /* PRIVATE */ -png_colorspace_set_endpoints(png_const_structrp png_ptr, - png_colorspacerp colorspace, const png_XYZ *XYZ_in, int preferred) -{ - png_XYZ XYZ = *XYZ_in; - png_xy xy; - - switch (png_colorspace_check_XYZ(&xy, &XYZ)) - { - case 0: - return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, &xy, &XYZ, - preferred); - - case 1: - /* End points are invalid. */ - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_benign_error(png_ptr, "invalid end points"); - break; - - default: - colorspace->flags |= PNG_COLORSPACE_INVALID; - png_error(png_ptr, "internal error checking chromaticities"); - break; - } - - return 0; /* failed */ -} - -#if defined(PNG_sRGB_SUPPORTED) || defined(PNG_iCCP_SUPPORTED) -/* Error message generation */ -static char -png_icc_tag_char(png_uint_32 byte) -{ - byte &= 0xff; - if (byte >= 32 && byte <= 126) - return (char)byte; - else - return '?'; -} - -static void -png_icc_tag_name(char *name, png_uint_32 tag) -{ - name[0] = '\''; - name[1] = png_icc_tag_char(tag >> 24); - name[2] = png_icc_tag_char(tag >> 16); - name[3] = png_icc_tag_char(tag >> 8); - name[4] = png_icc_tag_char(tag ); - name[5] = '\''; -} - -static int -is_ICC_signature_char(png_alloc_size_t it) -{ - return it == 32 || (it >= 48 && it <= 57) || (it >= 65 && it <= 90) || - (it >= 97 && it <= 122); -} - -static int -is_ICC_signature(png_alloc_size_t it) -{ - return is_ICC_signature_char(it >> 24) /* checks all the top bits */ && - is_ICC_signature_char((it >> 16) & 0xff) && - is_ICC_signature_char((it >> 8) & 0xff) && - is_ICC_signature_char(it & 0xff); -} - -static int -png_icc_profile_error(png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_charp name, png_alloc_size_t value, png_const_charp reason) -{ - size_t pos; - char message[196]; /* see below for calculation */ - - if (colorspace != NULL) - colorspace->flags |= PNG_COLORSPACE_INVALID; - - pos = png_safecat(message, (sizeof message), 0, "profile '"); /* 9 chars */ - pos = png_safecat(message, pos+79, pos, name); /* Truncate to 79 chars */ - pos = png_safecat(message, (sizeof message), pos, "': "); /* +2 = 90 */ - if (is_ICC_signature(value)) - { - /* So 'value' is at most 4 bytes and the following cast is safe */ - png_icc_tag_name(message+pos, (png_uint_32)value); - pos += 6; /* total +8; less than the else clause */ - message[pos++] = ':'; - message[pos++] = ' '; - } -# ifdef PNG_WARNINGS_SUPPORTED - else - { - char number[PNG_NUMBER_BUFFER_SIZE]; /* +24 = 114*/ - - pos = png_safecat(message, (sizeof message), pos, - png_format_number(number, number+(sizeof number), - PNG_NUMBER_FORMAT_x, value)); - pos = png_safecat(message, (sizeof message), pos, "h: "); /*+2 = 116*/ - } -# endif - /* The 'reason' is an arbitrary message, allow +79 maximum 195 */ - pos = png_safecat(message, (sizeof message), pos, reason); - PNG_UNUSED(pos) - - /* This is recoverable, but make it unconditionally an app_error on write to - * avoid writing invalid ICC profiles into PNG files. (I.e. we handle them - * on read, with a warning, but on write unless the app turns off - * application errors the PNG won't be written.) - */ - png_chunk_report(png_ptr, message, - (colorspace != NULL) ? PNG_CHUNK_ERROR : PNG_CHUNK_WRITE_ERROR); - - return 0; -} -#endif /* sRGB || iCCP */ - -#ifdef PNG_sRGB_SUPPORTED -int /* PRIVATE */ -png_colorspace_set_sRGB(png_const_structrp png_ptr, png_colorspacerp colorspace, - int intent) -{ - /* sRGB sets known gamma, end points and (from the chunk) intent. */ - /* IMPORTANT: these are not necessarily the values found in an ICC profile - * because ICC profiles store values adapted to a D50 environment; it is - * expected that the ICC profile mediaWhitePointTag will be D50, see the - * checks and code elsewhere to understand this better. - * - * These XYZ values, which are accurate to 5dp, produce rgb to gray - * coefficients of (6968,23435,2366), which are reduced (because they add up - * to 32769 not 32768) to (6968,23434,2366). These are the values that - * libpng has traditionally used (and are the best values given the 15bit - * algorithm used by the rgb to gray code.) - */ - static const png_XYZ sRGB_XYZ = /* D65 XYZ (*not* the D50 adapted values!) */ - { - /* color X Y Z */ - /* red */ 41239, 21264, 1933, - /* green */ 35758, 71517, 11919, - /* blue */ 18048, 7219, 95053 - }; - - /* Do nothing if the colorspace is already invalidated. */ - if (colorspace->flags & PNG_COLORSPACE_INVALID) - return 0; - - /* Check the intent, then check for existing settings. It is valid for the - * PNG file to have cHRM or gAMA chunks along with sRGB, but the values must - * be consistent with the correct values. If, however, this function is - * called below because an iCCP chunk matches sRGB then it is quite - * conceivable that an older app recorded incorrect gAMA and cHRM because of - * an incorrect calculation based on the values in the profile - this does - * *not* invalidate the profile (though it still produces an error, which can - * be ignored.) - */ - if (intent < 0 || intent >= PNG_sRGB_INTENT_LAST) - return png_icc_profile_error(png_ptr, colorspace, "sRGB", - (unsigned)intent, "invalid sRGB rendering intent"); - - if ((colorspace->flags & PNG_COLORSPACE_HAVE_INTENT) != 0 && - colorspace->rendering_intent != intent) - return png_icc_profile_error(png_ptr, colorspace, "sRGB", - (unsigned)intent, "inconsistent rendering intents"); - - if ((colorspace->flags & PNG_COLORSPACE_FROM_sRGB) != 0) - { - png_benign_error(png_ptr, "duplicate sRGB information ignored"); - return 0; - } - - /* If the standard sRGB cHRM chunk does not match the one from the PNG file - * warn but overwrite the value with the correct one. - */ - if ((colorspace->flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0 && - !png_colorspace_endpoints_match(&sRGB_xy, &colorspace->end_points_xy, - 100)) - png_chunk_report(png_ptr, "cHRM chunk does not match sRGB", - PNG_CHUNK_ERROR); - - /* This check is just done for the error reporting - the routine always - * returns true when the 'from' argument corresponds to sRGB (2). - */ - (void)png_colorspace_check_gamma(png_ptr, colorspace, PNG_GAMMA_sRGB_INVERSE, - 2/*from sRGB*/); - - /* intent: bugs in GCC force 'int' to be used as the parameter type. */ - colorspace->rendering_intent = (png_uint_16)intent; - colorspace->flags |= PNG_COLORSPACE_HAVE_INTENT; - - /* endpoints */ - colorspace->end_points_xy = sRGB_xy; - colorspace->end_points_XYZ = sRGB_XYZ; - colorspace->flags |= - (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB); - - /* gamma */ - colorspace->gamma = PNG_GAMMA_sRGB_INVERSE; - colorspace->flags |= PNG_COLORSPACE_HAVE_GAMMA; - - /* Finally record that we have an sRGB profile */ - colorspace->flags |= - (PNG_COLORSPACE_MATCHES_sRGB|PNG_COLORSPACE_FROM_sRGB); - - return 1; /* set */ -} -#endif /* sRGB */ - -#ifdef PNG_iCCP_SUPPORTED -/* Encoded value of D50 as an ICC XYZNumber. From the ICC 2010 spec the value - * is XYZ(0.9642,1.0,0.8249), which scales to: - * - * (63189.8112, 65536, 54060.6464) - */ -static const png_byte D50_nCIEXYZ[12] = - { 0x00, 0x00, 0xf6, 0xd6, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0xd3, 0x2d }; - -int /* PRIVATE */ -png_icc_check_length(png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_charp name, png_uint_32 profile_length) -{ - if (profile_length < 132) - return png_icc_profile_error(png_ptr, colorspace, name, profile_length, - "too short"); - - return 1; -} - -int /* PRIVATE */ -png_icc_check_header(png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_charp name, png_uint_32 profile_length, - png_const_bytep profile/* first 132 bytes only */, int color_type) -{ - png_uint_32 temp; - - /* Length check; this cannot be ignored in this code because profile_length - * is used later to check the tag table, so even if the profile seems over - * long profile_length from the caller must be correct. The caller can fix - * this up on read or write by just passing in the profile header length. - */ - temp = png_get_uint_32(profile); - if (temp != profile_length) - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "length does not match profile"); - - temp = (png_uint_32) (*(profile+8)); - if (temp > 3 && (profile_length & 3)) - return png_icc_profile_error(png_ptr, colorspace, name, profile_length, - "invalid length"); - - temp = png_get_uint_32(profile+128); /* tag count: 12 bytes/tag */ - if (temp > 357913930 || /* (2^32-4-132)/12: maximum possible tag count */ - profile_length < 132+12*temp) /* truncated tag table */ - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "tag count too large"); - - /* The 'intent' must be valid or we can't store it, ICC limits the intent to - * 16 bits. - */ - temp = png_get_uint_32(profile+64); - if (temp >= 0xffff) /* The ICC limit */ - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "invalid rendering intent"); - - /* This is just a warning because the profile may be valid in future - * versions. - */ - if (temp >= PNG_sRGB_INTENT_LAST) - (void)png_icc_profile_error(png_ptr, NULL, name, temp, - "intent outside defined range"); - - /* At this point the tag table can't be checked because it hasn't necessarily - * been loaded; however, various header fields can be checked. These checks - * are for values permitted by the PNG spec in an ICC profile; the PNG spec - * restricts the profiles that can be passed in an iCCP chunk (they must be - * appropriate to processing PNG data!) - */ - - /* Data checks (could be skipped). These checks must be independent of the - * version number; however, the version number doesn't accomodate changes in - * the header fields (just the known tags and the interpretation of the - * data.) - */ - temp = png_get_uint_32(profile+36); /* signature 'ascp' */ - if (temp != 0x61637370) - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "invalid signature"); - - /* Currently the PCS illuminant/adopted white point (the computational - * white point) are required to be D50, - * however the profile contains a record of the illuminant so perhaps ICC - * expects to be able to change this in the future (despite the rationale in - * the introduction for using a fixed PCS adopted white.) Consequently the - * following is just a warning. - */ - if (memcmp(profile+68, D50_nCIEXYZ, 12) != 0) - (void)png_icc_profile_error(png_ptr, NULL, name, 0/*no tag value*/, - "PCS illuminant is not D50"); - - /* The PNG spec requires this: - * "If the iCCP chunk is present, the image samples conform to the colour - * space represented by the embedded ICC profile as defined by the - * International Color Consortium [ICC]. The colour space of the ICC profile - * shall be an RGB colour space for colour images (PNG colour types 2, 3, and - * 6), or a greyscale colour space for greyscale images (PNG colour types 0 - * and 4)." - * - * This checking code ensures the embedded profile (on either read or write) - * conforms to the specification requirements. Notice that an ICC 'gray' - * color-space profile contains the information to transform the monochrome - * data to XYZ or L*a*b (according to which PCS the profile uses) and this - * should be used in preference to the standard libpng K channel replication - * into R, G and B channels. - * - * Previously it was suggested that an RGB profile on grayscale data could be - * handled. However it it is clear that using an RGB profile in this context - * must be an error - there is no specification of what it means. Thus it is - * almost certainly more correct to ignore the profile. - */ - temp = png_get_uint_32(profile+16); /* data colour space field */ - switch (temp) - { - case 0x52474220: /* 'RGB ' */ - if (!(color_type & PNG_COLOR_MASK_COLOR)) - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "RGB color space not permitted on grayscale PNG"); - break; - - case 0x47524159: /* 'GRAY' */ - if (color_type & PNG_COLOR_MASK_COLOR) - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "Gray color space not permitted on RGB PNG"); - break; - - default: - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "invalid ICC profile color space"); - } - - /* It is up to the application to check that the profile class matches the - * application requirements; the spec provides no guidance, but it's pretty - * weird if the profile is not scanner ('scnr'), monitor ('mntr'), printer - * ('prtr') or 'spac' (for generic color spaces). Issue a warning in these - * cases. Issue an error for device link or abstract profiles - these don't - * contain the records necessary to transform the color-space to anything - * other than the target device (and not even that for an abstract profile). - * Profiles of these classes may not be embedded in images. - */ - temp = png_get_uint_32(profile+12); /* profile/device class */ - switch (temp) - { - case 0x73636E72: /* 'scnr' */ - case 0x6D6E7472: /* 'mntr' */ - case 0x70727472: /* 'prtr' */ - case 0x73706163: /* 'spac' */ - /* All supported */ - break; - - case 0x61627374: /* 'abst' */ - /* May not be embedded in an image */ - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "invalid embedded Abstract ICC profile"); - - case 0x6C696E6B: /* 'link' */ - /* DeviceLink profiles cannot be interpreted in a non-device specific - * fashion, if an app uses the AToB0Tag in the profile the results are - * undefined unless the result is sent to the intended device, - * therefore a DeviceLink profile should not be found embedded in a - * PNG. - */ - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "unexpected DeviceLink ICC profile class"); - - case 0x6E6D636C: /* 'nmcl' */ - /* A NamedColor profile is also device specific, however it doesn't - * contain an AToB0 tag that is open to misinterpretation. Almost - * certainly it will fail the tests below. - */ - (void)png_icc_profile_error(png_ptr, NULL, name, temp, - "unexpected NamedColor ICC profile class"); - break; - - default: - /* To allow for future enhancements to the profile accept unrecognized - * profile classes with a warning, these then hit the test below on the - * tag content to ensure they are backward compatible with one of the - * understood profiles. - */ - (void)png_icc_profile_error(png_ptr, NULL, name, temp, - "unrecognized ICC profile class"); - break; - } - - /* For any profile other than a device link one the PCS must be encoded - * either in XYZ or Lab. - */ - temp = png_get_uint_32(profile+20); - switch (temp) - { - case 0x58595A20: /* 'XYZ ' */ - case 0x4C616220: /* 'Lab ' */ - break; - - default: - return png_icc_profile_error(png_ptr, colorspace, name, temp, - "unexpected ICC PCS encoding"); - } - - return 1; -} - -int /* PRIVATE */ -png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_charp name, png_uint_32 profile_length, - png_const_bytep profile /* header plus whole tag table */) -{ - png_uint_32 tag_count = png_get_uint_32(profile+128); - png_uint_32 itag; - png_const_bytep tag = profile+132; /* The first tag */ - - /* First scan all the tags in the table and add bits to the icc_info value - * (temporarily in 'tags'). - */ - for (itag=0; itag < tag_count; ++itag, tag += 12) - { - png_uint_32 tag_id = png_get_uint_32(tag+0); - png_uint_32 tag_start = png_get_uint_32(tag+4); /* must be aligned */ - png_uint_32 tag_length = png_get_uint_32(tag+8);/* not padded */ - - /* The ICC specification does not exclude zero length tags, therefore the - * start might actually be anywhere if there is no data, but this would be - * a clear abuse of the intent of the standard so the start is checked for - * being in range. All defined tag types have an 8 byte header - a 4 byte - * type signature then 0. - */ - if ((tag_start & 3) != 0) - { - /* CNHP730S.icc shipped with Microsoft Windows 64 violates this, it is - * only a warning here because libpng does not care about the - * alignment. - */ - (void)png_icc_profile_error(png_ptr, NULL, name, tag_id, - "ICC profile tag start not a multiple of 4"); - } - - /* This is a hard error; potentially it can cause read outside the - * profile. - */ - if (tag_start > profile_length || tag_length > profile_length - tag_start) - return png_icc_profile_error(png_ptr, colorspace, name, tag_id, - "ICC profile tag outside profile"); - } - - return 1; /* success, maybe with warnings */ -} - -#if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0 -/* Information about the known ICC sRGB profiles */ -static const struct -{ - png_uint_32 adler, crc, length; - png_uint_32 md5[4]; - png_byte have_md5; - png_byte is_broken; - png_uint_16 intent; - -# define PNG_MD5(a,b,c,d) { a, b, c, d }, (a!=0)||(b!=0)||(c!=0)||(d!=0) -# define PNG_ICC_CHECKSUM(adler, crc, md5, intent, broke, date, length, fname)\ - { adler, crc, length, md5, broke, intent }, - -} png_sRGB_checks[] = -{ - /* This data comes from contrib/tools/checksum-icc run on downloads of - * all four ICC sRGB profiles from www.color.org. - */ - /* adler32, crc32, MD5[4], intent, date, length, file-name */ - PNG_ICC_CHECKSUM(0x0a3fd9f6, 0x3b8772b9, - PNG_MD5(0x29f83dde, 0xaff255ae, 0x7842fae4, 0xca83390d), 0, 0, - "2009/03/27 21:36:31", 3048, "sRGB_IEC61966-2-1_black_scaled.icc") - - /* ICC sRGB v2 perceptual no black-compensation: */ - PNG_ICC_CHECKSUM(0x4909e5e1, 0x427ebb21, - PNG_MD5(0xc95bd637, 0xe95d8a3b, 0x0df38f99, 0xc1320389), 1, 0, - "2009/03/27 21:37:45", 3052, "sRGB_IEC61966-2-1_no_black_scaling.icc") - - PNG_ICC_CHECKSUM(0xfd2144a1, 0x306fd8ae, - PNG_MD5(0xfc663378, 0x37e2886b, 0xfd72e983, 0x8228f1b8), 0, 0, - "2009/08/10 17:28:01", 60988, "sRGB_v4_ICC_preference_displayclass.icc") - - /* ICC sRGB v4 perceptual */ - PNG_ICC_CHECKSUM(0x209c35d2, 0xbbef7812, - PNG_MD5(0x34562abf, 0x994ccd06, 0x6d2c5721, 0xd0d68c5d), 0, 0, - "2007/07/25 00:05:37", 60960, "sRGB_v4_ICC_preference.icc") - - /* The following profiles have no known MD5 checksum. If there is a match - * on the (empty) MD5 the other fields are used to attempt a match and - * a warning is produced. The first two of these profiles have a 'cprt' tag - * which suggests that they were also made by Hewlett Packard. - */ - PNG_ICC_CHECKSUM(0xa054d762, 0x5d5129ce, - PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 0, - "2004/07/21 18:57:42", 3024, "sRGB_IEC61966-2-1_noBPC.icc") - - /* This is a 'mntr' (display) profile with a mediaWhitePointTag that does not - * match the D50 PCS illuminant in the header (it is in fact the D65 values, - * so the white point is recorded as the un-adapted value.) The profiles - * below only differ in one byte - the intent - and are basically the same as - * the previous profile except for the mediaWhitePointTag error and a missing - * chromaticAdaptationTag. - */ - PNG_ICC_CHECKSUM(0xf784f3fb, 0x182ea552, - PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 0, 1/*broken*/, - "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 perceptual") - - PNG_ICC_CHECKSUM(0x0398f3fc, 0xf29e526d, - PNG_MD5(0x00000000, 0x00000000, 0x00000000, 0x00000000), 1, 1/*broken*/, - "1998/02/09 06:49:00", 3144, "HP-Microsoft sRGB v2 media-relative") -}; - -static int -png_compare_ICC_profile_with_sRGB(png_const_structrp png_ptr, - png_const_bytep profile, uLong adler) -{ - /* The quick check is to verify just the MD5 signature and trust the - * rest of the data. Because the profile has already been verified for - * correctness this is safe. png_colorspace_set_sRGB will check the 'intent' - * field too, so if the profile has been edited with an intent not defined - * by sRGB (but maybe defined by a later ICC specification) the read of - * the profile will fail at that point. - */ - - png_uint_32 length = 0; - png_uint_32 intent = 0x10000; /* invalid */ -#if PNG_sRGB_PROFILE_CHECKS > 1 - uLong crc = 0; /* the value for 0 length data */ -#endif - unsigned int i; - - /* First see if PNG_SKIP_sRGB_CHECK_PROFILE has been set to "on" */ - if (((png_ptr->options >> PNG_SKIP_sRGB_CHECK_PROFILE) & 3) == - PNG_OPTION_ON) - return 0; - - for (i=0; i < (sizeof png_sRGB_checks) / (sizeof png_sRGB_checks[0]); ++i) - { - if (png_get_uint_32(profile+84) == png_sRGB_checks[i].md5[0] && - png_get_uint_32(profile+88) == png_sRGB_checks[i].md5[1] && - png_get_uint_32(profile+92) == png_sRGB_checks[i].md5[2] && - png_get_uint_32(profile+96) == png_sRGB_checks[i].md5[3]) - { - /* This may be one of the old HP profiles without an MD5, in that - * case we can only use the length and Adler32 (note that these - * are not used by default if there is an MD5!) - */ -# if PNG_sRGB_PROFILE_CHECKS == 0 - if (png_sRGB_checks[i].have_md5) - return 1+png_sRGB_checks[i].is_broken; -# endif - - /* Profile is unsigned or more checks have been configured in. */ - if (length == 0) - { - length = png_get_uint_32(profile); - intent = png_get_uint_32(profile+64); - } - - /* Length *and* intent must match */ - if (length == png_sRGB_checks[i].length && - intent == png_sRGB_checks[i].intent) - { - /* Now calculate the adler32 if not done already. */ - if (adler == 0) - { - adler = adler32(0, NULL, 0); - adler = adler32(adler, profile, length); - } - - if (adler == png_sRGB_checks[i].adler) - { - /* These basic checks suggest that the data has not been - * modified, but if the check level is more than 1 perform - * our own crc32 checksum on the data. - */ -# if PNG_sRGB_PROFILE_CHECKS > 1 - if (crc == 0) - { - crc = crc32(0, NULL, 0); - crc = crc32(crc, profile, length); - } - - /* So this check must pass for the 'return' below to happen. - */ - if (crc == png_sRGB_checks[i].crc) -# endif - { - if (png_sRGB_checks[i].is_broken) - { - /* These profiles are known to have bad data that may cause - * problems if they are used, therefore attempt to - * discourage their use, skip the 'have_md5' warning below, - * which is made irrelevant by this error. - */ - png_chunk_report(png_ptr, "known incorrect sRGB profile", - PNG_CHUNK_ERROR); - } - - /* Warn that this being done; this isn't even an error since - * the profile is perfectly valid, but it would be nice if - * people used the up-to-date ones. - */ - else if (!png_sRGB_checks[i].have_md5) - { - png_chunk_report(png_ptr, - "out-of-date sRGB profile with no signature", - PNG_CHUNK_WARNING); - } - - return 1+png_sRGB_checks[i].is_broken; - } - } - -# if PNG_sRGB_PROFILE_CHECKS > 0 - /* The signature matched, but the profile had been changed in some - * way. This probably indicates a data error or uninformed hacking. - * Fall through to "no match". - */ - png_chunk_report(png_ptr, - "Not recognizing known sRGB profile that has been edited", - PNG_CHUNK_WARNING); - break; -# endif - } - } - } - - return 0; /* no match */ -} -#endif - -#ifdef PNG_sRGB_SUPPORTED -void /* PRIVATE */ -png_icc_set_sRGB(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_const_bytep profile, uLong adler) -{ - /* Is this profile one of the known ICC sRGB profiles? If it is, just set - * the sRGB information. - */ -#if PNG_sRGB_PROFILE_CHECKS >= 0 - if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler)) -#endif - (void)png_colorspace_set_sRGB(png_ptr, colorspace, - (int)/*already checked*/png_get_uint_32(profile+64)); -} -#endif /* PNG_READ_sRGB_SUPPORTED */ - -int /* PRIVATE */ -png_colorspace_set_ICC(png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_charp name, png_uint_32 profile_length, png_const_bytep profile, - int color_type) -{ - if (colorspace->flags & PNG_COLORSPACE_INVALID) - return 0; - - if (png_icc_check_length(png_ptr, colorspace, name, profile_length) && - png_icc_check_header(png_ptr, colorspace, name, profile_length, profile, - color_type) && - png_icc_check_tag_table(png_ptr, colorspace, name, profile_length, - profile)) - { -# ifdef PNG_sRGB_SUPPORTED - /* If no sRGB support, don't try storing sRGB information */ - png_icc_set_sRGB(png_ptr, colorspace, profile, 0); -# endif - return 1; - } - - /* Failure case */ - return 0; -} -#endif /* iCCP */ - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -void /* PRIVATE */ -png_colorspace_set_rgb_coefficients(png_structrp png_ptr) -{ - /* Set the rgb_to_gray coefficients from the colorspace. */ - if (!png_ptr->rgb_to_gray_coefficients_set && - (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS) != 0) - { - /* png_set_background has not been called, get the coefficients from the Y - * values of the colorspace colorants. - */ - png_fixed_point r = png_ptr->colorspace.end_points_XYZ.red_Y; - png_fixed_point g = png_ptr->colorspace.end_points_XYZ.green_Y; - png_fixed_point b = png_ptr->colorspace.end_points_XYZ.blue_Y; - png_fixed_point total = r+g+b; - - if (total > 0 && - r >= 0 && png_muldiv(&r, r, 32768, total) && r >= 0 && r <= 32768 && - g >= 0 && png_muldiv(&g, g, 32768, total) && g >= 0 && g <= 32768 && - b >= 0 && png_muldiv(&b, b, 32768, total) && b >= 0 && b <= 32768 && - r+g+b <= 32769) - { - /* We allow 0 coefficients here. r+g+b may be 32769 if two or - * all of the coefficients were rounded up. Handle this by - * reducing the *largest* coefficient by 1; this matches the - * approach used for the default coefficients in pngrtran.c - */ - int add = 0; - - if (r+g+b > 32768) - add = -1; - else if (r+g+b < 32768) - add = 1; - - if (add != 0) - { - if (g >= r && g >= b) - g += add; - else if (r >= g && r >= b) - r += add; - else - b += add; - } - - /* Check for an internal error. */ - if (r+g+b != 32768) - png_error(png_ptr, - "internal error handling cHRM coefficients"); - - else - { - png_ptr->rgb_to_gray_red_coeff = (png_uint_16)r; - png_ptr->rgb_to_gray_green_coeff = (png_uint_16)g; - } - } - - /* This is a png_error at present even though it could be ignored - - * it should never happen, but it is important that if it does, the - * bug is fixed. - */ - else - png_error(png_ptr, "internal error handling cHRM->XYZ"); - } -} -#endif - -#endif /* COLORSPACE */ - -void /* PRIVATE */ -png_check_IHDR(png_const_structrp png_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_type, int compression_type, - int filter_type) -{ - int error = 0; - - /* Check for width and height valid values */ - if (width == 0) - { - png_warning(png_ptr, "Image width is zero in IHDR"); - error = 1; - } - else if (width > PNG_UINT_31_MAX) - { - png_warning(png_ptr, "Invalid image width in IHDR"); - error = 1; - } - else - { -# ifdef PNG_SET_USER_LIMITS_SUPPORTED - if (width > png_ptr->user_width_max) -# else - if (width > PNG_USER_WIDTH_MAX) -# endif - { - png_warning(png_ptr, "Image width exceeds user limit in IHDR"); - error = 1; - } - } - - if (height == 0) - { - png_warning(png_ptr, "Image height is zero in IHDR"); - error = 1; - } - else if (height > PNG_UINT_31_MAX) - { - png_warning(png_ptr, "Invalid image height in IHDR"); - error = 1; - } - else - { -# ifdef PNG_SET_USER_LIMITS_SUPPORTED - if (height > png_ptr->user_height_max) -# else - if (height > PNG_USER_HEIGHT_MAX) -# endif - { - png_warning(png_ptr, "Image height exceeds user limit in IHDR"); - error = 1; - } - } - - /* Check other values */ - if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 && - bit_depth != 8 && bit_depth != 16) - { - png_warning(png_ptr, "Invalid bit depth in IHDR"); - error = 1; - } - - if (color_type < 0 || color_type == 1 || - color_type == 5 || color_type > 6) - { - png_warning(png_ptr, "Invalid color type in IHDR"); - error = 1; - } - - if (((color_type == PNG_COLOR_TYPE_PALETTE) && bit_depth > 8) || - ((color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_GRAY_ALPHA || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8)) - { - png_warning(png_ptr, "Invalid color type/bit depth combination in IHDR"); - error = 1; - } - - if (interlace_type >= PNG_INTERLACE_LAST) - { - png_warning(png_ptr, "Unknown interlace method in IHDR"); - error = 1; - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - { - png_warning(png_ptr, "Unknown compression method in IHDR"); - error = 1; - } - -# ifdef PNG_MNG_FEATURES_SUPPORTED - /* Accept filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not read a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) && - png_ptr->mng_features_permitted) - png_warning(png_ptr, "MNG features are not allowed in a PNG datastream"); - - if (filter_type != PNG_FILTER_TYPE_BASE) - { - if (!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING) && - ((png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA))) - { - png_warning(png_ptr, "Unknown filter method in IHDR"); - error = 1; - } - - if (png_ptr->mode & PNG_HAVE_PNG_SIGNATURE) - { - png_warning(png_ptr, "Invalid filter method in IHDR"); - error = 1; - } - } - -# else - if (filter_type != PNG_FILTER_TYPE_BASE) - { - png_warning(png_ptr, "Unknown filter method in IHDR"); - error = 1; - } -# endif - - if (error == 1) - png_error(png_ptr, "Invalid IHDR data"); -} - -#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) -/* ASCII to fp functions */ -/* Check an ASCII formated floating point value, see the more detailed - * comments in pngpriv.h - */ -/* The following is used internally to preserve the sticky flags */ -#define png_fp_add(state, flags) ((state) |= (flags)) -#define png_fp_set(state, value) ((state) = (value) | ((state) & PNG_FP_STICKY)) - -int /* PRIVATE */ -png_check_fp_number(png_const_charp string, png_size_t size, int *statep, - png_size_tp whereami) -{ - int state = *statep; - png_size_t i = *whereami; - - while (i < size) - { - int type; - /* First find the type of the next character */ - switch (string[i]) - { - case 43: type = PNG_FP_SAW_SIGN; break; - case 45: type = PNG_FP_SAW_SIGN + PNG_FP_NEGATIVE; break; - case 46: type = PNG_FP_SAW_DOT; break; - case 48: type = PNG_FP_SAW_DIGIT; break; - case 49: case 50: case 51: case 52: - case 53: case 54: case 55: case 56: - case 57: type = PNG_FP_SAW_DIGIT + PNG_FP_NONZERO; break; - case 69: - case 101: type = PNG_FP_SAW_E; break; - default: goto PNG_FP_End; - } - - /* Now deal with this type according to the current - * state, the type is arranged to not overlap the - * bits of the PNG_FP_STATE. - */ - switch ((state & PNG_FP_STATE) + (type & PNG_FP_SAW_ANY)) - { - case PNG_FP_INTEGER + PNG_FP_SAW_SIGN: - if (state & PNG_FP_SAW_ANY) - goto PNG_FP_End; /* not a part of the number */ - - png_fp_add(state, type); - break; - - case PNG_FP_INTEGER + PNG_FP_SAW_DOT: - /* Ok as trailer, ok as lead of fraction. */ - if (state & PNG_FP_SAW_DOT) /* two dots */ - goto PNG_FP_End; - - else if (state & PNG_FP_SAW_DIGIT) /* trailing dot? */ - png_fp_add(state, type); - - else - png_fp_set(state, PNG_FP_FRACTION | type); - - break; - - case PNG_FP_INTEGER + PNG_FP_SAW_DIGIT: - if (state & PNG_FP_SAW_DOT) /* delayed fraction */ - png_fp_set(state, PNG_FP_FRACTION | PNG_FP_SAW_DOT); - - png_fp_add(state, type | PNG_FP_WAS_VALID); - - break; - - case PNG_FP_INTEGER + PNG_FP_SAW_E: - if ((state & PNG_FP_SAW_DIGIT) == 0) - goto PNG_FP_End; - - png_fp_set(state, PNG_FP_EXPONENT); - - break; - - /* case PNG_FP_FRACTION + PNG_FP_SAW_SIGN: - goto PNG_FP_End; ** no sign in fraction */ - - /* case PNG_FP_FRACTION + PNG_FP_SAW_DOT: - goto PNG_FP_End; ** Because SAW_DOT is always set */ - - case PNG_FP_FRACTION + PNG_FP_SAW_DIGIT: - png_fp_add(state, type | PNG_FP_WAS_VALID); - break; - - case PNG_FP_FRACTION + PNG_FP_SAW_E: - /* This is correct because the trailing '.' on an - * integer is handled above - so we can only get here - * with the sequence ".E" (with no preceding digits). - */ - if ((state & PNG_FP_SAW_DIGIT) == 0) - goto PNG_FP_End; - - png_fp_set(state, PNG_FP_EXPONENT); - - break; - - case PNG_FP_EXPONENT + PNG_FP_SAW_SIGN: - if (state & PNG_FP_SAW_ANY) - goto PNG_FP_End; /* not a part of the number */ - - png_fp_add(state, PNG_FP_SAW_SIGN); - - break; - - /* case PNG_FP_EXPONENT + PNG_FP_SAW_DOT: - goto PNG_FP_End; */ - - case PNG_FP_EXPONENT + PNG_FP_SAW_DIGIT: - png_fp_add(state, PNG_FP_SAW_DIGIT | PNG_FP_WAS_VALID); - - break; - - /* case PNG_FP_EXPONEXT + PNG_FP_SAW_E: - goto PNG_FP_End; */ - - default: goto PNG_FP_End; /* I.e. break 2 */ - } - - /* The character seems ok, continue. */ - ++i; - } - -PNG_FP_End: - /* Here at the end, update the state and return the correct - * return code. - */ - *statep = state; - *whereami = i; - - return (state & PNG_FP_SAW_DIGIT) != 0; -} - - -/* The same but for a complete string. */ -int -png_check_fp_string(png_const_charp string, png_size_t size) -{ - int state=0; - png_size_t char_index=0; - - if (png_check_fp_number(string, size, &state, &char_index) && - (char_index == size || string[char_index] == 0)) - return state /* must be non-zero - see above */; - - return 0; /* i.e. fail */ -} -#endif /* pCAL or sCAL */ - -#ifdef PNG_sCAL_SUPPORTED -# ifdef PNG_FLOATING_POINT_SUPPORTED -/* Utility used below - a simple accurate power of ten from an integral - * exponent. - */ -static double -png_pow10(int power) -{ - int recip = 0; - double d = 1; - - /* Handle negative exponent with a reciprocal at the end because - * 10 is exact whereas .1 is inexact in base 2 - */ - if (power < 0) - { - if (power < DBL_MIN_10_EXP) return 0; - recip = 1, power = -power; - } - - if (power > 0) - { - /* Decompose power bitwise. */ - double mult = 10; - do - { - if (power & 1) d *= mult; - mult *= mult; - power >>= 1; - } - while (power > 0); - - if (recip != 0) d = 1/d; - } - /* else power is 0 and d is 1 */ - - return d; -} - -/* Function to format a floating point value in ASCII with a given - * precision. - */ -void /* PRIVATE */ -png_ascii_from_fp(png_const_structrp png_ptr, png_charp ascii, png_size_t size, - double fp, unsigned int precision) -{ - /* We use standard functions from math.h, but not printf because - * that would require stdio. The caller must supply a buffer of - * sufficient size or we will png_error. The tests on size and - * the space in ascii[] consumed are indicated below. - */ - if (precision < 1) - precision = DBL_DIG; - - /* Enforce the limit of the implementation precision too. */ - if (precision > DBL_DIG+1) - precision = DBL_DIG+1; - - /* Basic sanity checks */ - if (size >= precision+5) /* See the requirements below. */ - { - if (fp < 0) - { - fp = -fp; - *ascii++ = 45; /* '-' PLUS 1 TOTAL 1 */ - --size; - } - - if (fp >= DBL_MIN && fp <= DBL_MAX) - { - int exp_b10; /* A base 10 exponent */ - double base; /* 10^exp_b10 */ - - /* First extract a base 10 exponent of the number, - * the calculation below rounds down when converting - * from base 2 to base 10 (multiply by log10(2) - - * 0.3010, but 77/256 is 0.3008, so exp_b10 needs to - * be increased. Note that the arithmetic shift - * performs a floor() unlike C arithmetic - using a - * C multiply would break the following for negative - * exponents. - */ - (void)frexp(fp, &exp_b10); /* exponent to base 2 */ - - exp_b10 = (exp_b10 * 77) >> 8; /* <= exponent to base 10 */ - - /* Avoid underflow here. */ - base = png_pow10(exp_b10); /* May underflow */ - - while (base < DBL_MIN || base < fp) - { - /* And this may overflow. */ - double test = png_pow10(exp_b10+1); - - if (test <= DBL_MAX) - ++exp_b10, base = test; - - else - break; - } - - /* Normalize fp and correct exp_b10, after this fp is in the - * range [.1,1) and exp_b10 is both the exponent and the digit - * *before* which the decimal point should be inserted - * (starting with 0 for the first digit). Note that this - * works even if 10^exp_b10 is out of range because of the - * test on DBL_MAX above. - */ - fp /= base; - while (fp >= 1) fp /= 10, ++exp_b10; - - /* Because of the code above fp may, at this point, be - * less than .1, this is ok because the code below can - * handle the leading zeros this generates, so no attempt - * is made to correct that here. - */ - - { - int czero, clead, cdigits; - char exponent[10]; - - /* Allow up to two leading zeros - this will not lengthen - * the number compared to using E-n. - */ - if (exp_b10 < 0 && exp_b10 > -3) /* PLUS 3 TOTAL 4 */ - { - czero = -exp_b10; /* PLUS 2 digits: TOTAL 3 */ - exp_b10 = 0; /* Dot added below before first output. */ - } - else - czero = 0; /* No zeros to add */ - - /* Generate the digit list, stripping trailing zeros and - * inserting a '.' before a digit if the exponent is 0. - */ - clead = czero; /* Count of leading zeros */ - cdigits = 0; /* Count of digits in list. */ - - do - { - double d; - - fp *= 10; - /* Use modf here, not floor and subtract, so that - * the separation is done in one step. At the end - * of the loop don't break the number into parts so - * that the final digit is rounded. - */ - if (cdigits+czero-clead+1 < (int)precision) - fp = modf(fp, &d); - - else - { - d = floor(fp + .5); - - if (d > 9) - { - /* Rounding up to 10, handle that here. */ - if (czero > 0) - { - --czero, d = 1; - if (cdigits == 0) --clead; - } - else - { - while (cdigits > 0 && d > 9) - { - int ch = *--ascii; - - if (exp_b10 != (-1)) - ++exp_b10; - - else if (ch == 46) - { - ch = *--ascii, ++size; - /* Advance exp_b10 to '1', so that the - * decimal point happens after the - * previous digit. - */ - exp_b10 = 1; - } - - --cdigits; - d = ch - 47; /* I.e. 1+(ch-48) */ - } - - /* Did we reach the beginning? If so adjust the - * exponent but take into account the leading - * decimal point. - */ - if (d > 9) /* cdigits == 0 */ - { - if (exp_b10 == (-1)) - { - /* Leading decimal point (plus zeros?), if - * we lose the decimal point here it must - * be reentered below. - */ - int ch = *--ascii; - - if (ch == 46) - ++size, exp_b10 = 1; - - /* Else lost a leading zero, so 'exp_b10' is - * still ok at (-1) - */ - } - else - ++exp_b10; - - /* In all cases we output a '1' */ - d = 1; - } - } - } - fp = 0; /* Guarantees termination below. */ - } - - if (d == 0) - { - ++czero; - if (cdigits == 0) ++clead; - } - else - { - /* Included embedded zeros in the digit count. */ - cdigits += czero - clead; - clead = 0; - - while (czero > 0) - { - /* exp_b10 == (-1) means we just output the decimal - * place - after the DP don't adjust 'exp_b10' any - * more! - */ - if (exp_b10 != (-1)) - { - if (exp_b10 == 0) *ascii++ = 46, --size; - /* PLUS 1: TOTAL 4 */ - --exp_b10; - } - *ascii++ = 48, --czero; - } - - if (exp_b10 != (-1)) - { - if (exp_b10 == 0) *ascii++ = 46, --size; /* counted - above */ - --exp_b10; - } - *ascii++ = (char)(48 + (int)d), ++cdigits; - } - } - while (cdigits+czero-clead < (int)precision && fp > DBL_MIN); - - /* The total output count (max) is now 4+precision */ - - /* Check for an exponent, if we don't need one we are - * done and just need to terminate the string. At - * this point exp_b10==(-1) is effectively if flag - it got - * to '-1' because of the decrement after outputing - * the decimal point above (the exponent required is - * *not* -1!) - */ - if (exp_b10 >= (-1) && exp_b10 <= 2) - { - /* The following only happens if we didn't output the - * leading zeros above for negative exponent, so this - * doest add to the digit requirement. Note that the - * two zeros here can only be output if the two leading - * zeros were *not* output, so this doesn't increase - * the output count. - */ - while (--exp_b10 >= 0) *ascii++ = 48; - - *ascii = 0; - - /* Total buffer requirement (including the '\0') is - * 5+precision - see check at the start. - */ - return; - } - - /* Here if an exponent is required, adjust size for - * the digits we output but did not count. The total - * digit output here so far is at most 1+precision - no - * decimal point and no leading or trailing zeros have - * been output. - */ - size -= cdigits; - - *ascii++ = 69, --size; /* 'E': PLUS 1 TOTAL 2+precision */ - - /* The following use of an unsigned temporary avoids ambiguities in - * the signed arithmetic on exp_b10 and permits GCC at least to do - * better optimization. - */ - { - unsigned int uexp_b10; - - if (exp_b10 < 0) - { - *ascii++ = 45, --size; /* '-': PLUS 1 TOTAL 3+precision */ - uexp_b10 = -exp_b10; - } - - else - uexp_b10 = exp_b10; - - cdigits = 0; - - while (uexp_b10 > 0) - { - exponent[cdigits++] = (char)(48 + uexp_b10 % 10); - uexp_b10 /= 10; - } - } - - /* Need another size check here for the exponent digits, so - * this need not be considered above. - */ - if ((int)size > cdigits) - { - while (cdigits > 0) *ascii++ = exponent[--cdigits]; - - *ascii = 0; - - return; - } - } - } - else if (!(fp >= DBL_MIN)) - { - *ascii++ = 48; /* '0' */ - *ascii = 0; - return; - } - else - { - *ascii++ = 105; /* 'i' */ - *ascii++ = 110; /* 'n' */ - *ascii++ = 102; /* 'f' */ - *ascii = 0; - return; - } - } - - /* Here on buffer too small. */ - png_error(png_ptr, "ASCII conversion buffer too small"); -} - -# endif /* FLOATING_POINT */ - -# ifdef PNG_FIXED_POINT_SUPPORTED -/* Function to format a fixed point value in ASCII. - */ -void /* PRIVATE */ -png_ascii_from_fixed(png_const_structrp png_ptr, png_charp ascii, - png_size_t size, png_fixed_point fp) -{ - /* Require space for 10 decimal digits, a decimal point, a minus sign and a - * trailing \0, 13 characters: - */ - if (size > 12) - { - png_uint_32 num; - - /* Avoid overflow here on the minimum integer. */ - if (fp < 0) - *ascii++ = 45, --size, num = -fp; - else - num = fp; - - if (num <= 0x80000000) /* else overflowed */ - { - unsigned int ndigits = 0, first = 16 /* flag value */; - char digits[10]; - - while (num) - { - /* Split the low digit off num: */ - unsigned int tmp = num/10; - num -= tmp*10; - digits[ndigits++] = (char)(48 + num); - /* Record the first non-zero digit, note that this is a number - * starting at 1, it's not actually the array index. - */ - if (first == 16 && num > 0) - first = ndigits; - num = tmp; - } - - if (ndigits > 0) - { - while (ndigits > 5) *ascii++ = digits[--ndigits]; - /* The remaining digits are fractional digits, ndigits is '5' or - * smaller at this point. It is certainly not zero. Check for a - * non-zero fractional digit: - */ - if (first <= 5) - { - unsigned int i; - *ascii++ = 46; /* decimal point */ - /* ndigits may be <5 for small numbers, output leading zeros - * then ndigits digits to first: - */ - i = 5; - while (ndigits < i) *ascii++ = 48, --i; - while (ndigits >= first) *ascii++ = digits[--ndigits]; - /* Don't output the trailing zeros! */ - } - } - else - *ascii++ = 48; - - /* And null terminate the string: */ - *ascii = 0; - return; - } - } - - /* Here on buffer too small. */ - png_error(png_ptr, "ASCII conversion buffer too small"); -} -# endif /* FIXED_POINT */ -#endif /* READ_SCAL */ - -#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ - !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \ - (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \ - defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \ - (defined(PNG_sCAL_SUPPORTED) && \ - defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)) -png_fixed_point -png_fixed(png_const_structrp png_ptr, double fp, png_const_charp text) -{ - double r = floor(100000 * fp + .5); - - if (r > 2147483647. || r < -2147483648.) - png_fixed_error(png_ptr, text); - -# ifndef PNG_ERROR_TEXT_SUPPORTED - PNG_UNUSED(text) -# endif - - return (png_fixed_point)r; -} -#endif - -#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_COLORSPACE_SUPPORTED) ||\ - defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED) -/* muldiv functions */ -/* This API takes signed arguments and rounds the result to the nearest - * integer (or, for a fixed point number - the standard argument - to - * the nearest .00001). Overflow and divide by zero are signalled in - * the result, a boolean - true on success, false on overflow. - */ -int -png_muldiv(png_fixed_point_p res, png_fixed_point a, png_int_32 times, - png_int_32 divisor) -{ - /* Return a * times / divisor, rounded. */ - if (divisor != 0) - { - if (a == 0 || times == 0) - { - *res = 0; - return 1; - } - else - { -#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = a; - r *= times; - r /= divisor; - r = floor(r+.5); - - /* A png_fixed_point is a 32-bit integer. */ - if (r <= 2147483647. && r >= -2147483648.) - { - *res = (png_fixed_point)r; - return 1; - } -#else - int negative = 0; - png_uint_32 A, T, D; - png_uint_32 s16, s32, s00; - - if (a < 0) - negative = 1, A = -a; - else - A = a; - - if (times < 0) - negative = !negative, T = -times; - else - T = times; - - if (divisor < 0) - negative = !negative, D = -divisor; - else - D = divisor; - - /* Following can't overflow because the arguments only - * have 31 bits each, however the result may be 32 bits. - */ - s16 = (A >> 16) * (T & 0xffff) + - (A & 0xffff) * (T >> 16); - /* Can't overflow because the a*times bit is only 30 - * bits at most. - */ - s32 = (A >> 16) * (T >> 16) + (s16 >> 16); - s00 = (A & 0xffff) * (T & 0xffff); - - s16 = (s16 & 0xffff) << 16; - s00 += s16; - - if (s00 < s16) - ++s32; /* carry */ - - if (s32 < D) /* else overflow */ - { - /* s32.s00 is now the 64-bit product, do a standard - * division, we know that s32 < D, so the maximum - * required shift is 31. - */ - int bitshift = 32; - png_fixed_point result = 0; /* NOTE: signed */ - - while (--bitshift >= 0) - { - png_uint_32 d32, d00; - - if (bitshift > 0) - d32 = D >> (32-bitshift), d00 = D << bitshift; - - else - d32 = 0, d00 = D; - - if (s32 > d32) - { - if (s00 < d00) --s32; /* carry */ - s32 -= d32, s00 -= d00, result += 1<= d00) - s32 = 0, s00 -= d00, result += 1<= (D >> 1)) - ++result; - - if (negative != 0) - result = -result; - - /* Check for overflow. */ - if ((negative && result <= 0) || (!negative && result >= 0)) - { - *res = result; - return 1; - } - } -#endif - } - } - - return 0; -} -#endif /* READ_GAMMA || INCH_CONVERSIONS */ - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) -/* The following is for when the caller doesn't much care about the - * result. - */ -png_fixed_point -png_muldiv_warn(png_const_structrp png_ptr, png_fixed_point a, png_int_32 times, - png_int_32 divisor) -{ - png_fixed_point result; - - if (png_muldiv(&result, a, times, divisor)) - return result; - - png_warning(png_ptr, "fixed point overflow ignored"); - return 0; -} -#endif - -#ifdef PNG_GAMMA_SUPPORTED /* more fixed point functions for gamma */ -/* Calculate a reciprocal, return 0 on div-by-zero or overflow. */ -png_fixed_point -png_reciprocal(png_fixed_point a) -{ -#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = floor(1E10/a+.5); - - if (r <= 2147483647. && r >= -2147483648.) - return (png_fixed_point)r; -#else - png_fixed_point res; - - if (png_muldiv(&res, 100000, 100000, a)) - return res; -#endif - - return 0; /* error/overflow */ -} - -/* This is the shared test on whether a gamma value is 'significant' - whether - * it is worth doing gamma correction. - */ -int /* PRIVATE */ -png_gamma_significant(png_fixed_point gamma_val) -{ - return gamma_val < PNG_FP_1 - PNG_GAMMA_THRESHOLD_FIXED || - gamma_val > PNG_FP_1 + PNG_GAMMA_THRESHOLD_FIXED; -} -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED -# ifdef PNG_16BIT_SUPPORTED -/* A local convenience routine. */ -static png_fixed_point -png_product2(png_fixed_point a, png_fixed_point b) -{ - /* The required result is 1/a * 1/b; the following preserves accuracy. */ -# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = a * 1E-5; - r *= b; - r = floor(r+.5); - - if (r <= 2147483647. && r >= -2147483648.) - return (png_fixed_point)r; -# else - png_fixed_point res; - - if (png_muldiv(&res, a, b, 100000)) - return res; -# endif - - return 0; /* overflow */ -} -# endif /* 16BIT */ - -/* The inverse of the above. */ -png_fixed_point -png_reciprocal2(png_fixed_point a, png_fixed_point b) -{ - /* The required result is 1/a * 1/b; the following preserves accuracy. */ -#ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = 1E15/a; - r /= b; - r = floor(r+.5); - - if (r <= 2147483647. && r >= -2147483648.) - return (png_fixed_point)r; -#else - /* This may overflow because the range of png_fixed_point isn't symmetric, - * but this API is only used for the product of file and screen gamma so it - * doesn't matter that the smallest number it can produce is 1/21474, not - * 1/100000 - */ - png_fixed_point res = png_product2(a, b); - - if (res != 0) - return png_reciprocal(res); -#endif - - return 0; /* overflow */ -} -#endif /* READ_GAMMA */ - -#ifdef PNG_READ_GAMMA_SUPPORTED /* gamma table code */ -#ifndef PNG_FLOATING_ARITHMETIC_SUPPORTED -/* Fixed point gamma. - * - * The code to calculate the tables used below can be found in the shell script - * contrib/tools/intgamma.sh - * - * To calculate gamma this code implements fast log() and exp() calls using only - * fixed point arithmetic. This code has sufficient precision for either 8-bit - * or 16-bit sample values. - * - * The tables used here were calculated using simple 'bc' programs, but C double - * precision floating point arithmetic would work fine. - * - * 8-bit log table - * This is a table of -log(value/255)/log(2) for 'value' in the range 128 to - * 255, so it's the base 2 logarithm of a normalized 8-bit floating point - * mantissa. The numbers are 32-bit fractions. - */ -static const png_uint_32 -png_8bit_l2[128] = -{ - 4270715492U, 4222494797U, 4174646467U, 4127164793U, 4080044201U, 4033279239U, - 3986864580U, 3940795015U, 3895065449U, 3849670902U, 3804606499U, 3759867474U, - 3715449162U, 3671346997U, 3627556511U, 3584073329U, 3540893168U, 3498011834U, - 3455425220U, 3413129301U, 3371120137U, 3329393864U, 3287946700U, 3246774933U, - 3205874930U, 3165243125U, 3124876025U, 3084770202U, 3044922296U, 3005329011U, - 2965987113U, 2926893432U, 2888044853U, 2849438323U, 2811070844U, 2772939474U, - 2735041326U, 2697373562U, 2659933400U, 2622718104U, 2585724991U, 2548951424U, - 2512394810U, 2476052606U, 2439922311U, 2404001468U, 2368287663U, 2332778523U, - 2297471715U, 2262364947U, 2227455964U, 2192742551U, 2158222529U, 2123893754U, - 2089754119U, 2055801552U, 2022034013U, 1988449497U, 1955046031U, 1921821672U, - 1888774511U, 1855902668U, 1823204291U, 1790677560U, 1758320682U, 1726131893U, - 1694109454U, 1662251657U, 1630556815U, 1599023271U, 1567649391U, 1536433567U, - 1505374214U, 1474469770U, 1443718700U, 1413119487U, 1382670639U, 1352370686U, - 1322218179U, 1292211689U, 1262349810U, 1232631153U, 1203054352U, 1173618059U, - 1144320946U, 1115161701U, 1086139034U, 1057251672U, 1028498358U, 999877854U, - 971388940U, 943030410U, 914801076U, 886699767U, 858725327U, 830876614U, - 803152505U, 775551890U, 748073672U, 720716771U, 693480120U, 666362667U, - 639363374U, 612481215U, 585715177U, 559064263U, 532527486U, 506103872U, - 479792461U, 453592303U, 427502463U, 401522014U, 375650043U, 349885648U, - 324227938U, 298676034U, 273229066U, 247886176U, 222646516U, 197509248U, - 172473545U, 147538590U, 122703574U, 97967701U, 73330182U, 48790236U, - 24347096U, 0U - -#if 0 - /* The following are the values for 16-bit tables - these work fine for the - * 8-bit conversions but produce very slightly larger errors in the 16-bit - * log (about 1.2 as opposed to 0.7 absolute error in the final value). To - * use these all the shifts below must be adjusted appropriately. - */ - 65166, 64430, 63700, 62976, 62257, 61543, 60835, 60132, 59434, 58741, 58054, - 57371, 56693, 56020, 55352, 54689, 54030, 53375, 52726, 52080, 51439, 50803, - 50170, 49542, 48918, 48298, 47682, 47070, 46462, 45858, 45257, 44661, 44068, - 43479, 42894, 42312, 41733, 41159, 40587, 40020, 39455, 38894, 38336, 37782, - 37230, 36682, 36137, 35595, 35057, 34521, 33988, 33459, 32932, 32408, 31887, - 31369, 30854, 30341, 29832, 29325, 28820, 28319, 27820, 27324, 26830, 26339, - 25850, 25364, 24880, 24399, 23920, 23444, 22970, 22499, 22029, 21562, 21098, - 20636, 20175, 19718, 19262, 18808, 18357, 17908, 17461, 17016, 16573, 16132, - 15694, 15257, 14822, 14390, 13959, 13530, 13103, 12678, 12255, 11834, 11415, - 10997, 10582, 10168, 9756, 9346, 8937, 8531, 8126, 7723, 7321, 6921, 6523, - 6127, 5732, 5339, 4947, 4557, 4169, 3782, 3397, 3014, 2632, 2251, 1872, 1495, - 1119, 744, 372 -#endif -}; - -static png_int_32 -png_log8bit(unsigned int x) -{ - unsigned int lg2 = 0; - /* Each time 'x' is multiplied by 2, 1 must be subtracted off the final log, - * because the log is actually negate that means adding 1. The final - * returned value thus has the range 0 (for 255 input) to 7.994 (for 1 - * input), return -1 for the overflow (log 0) case, - so the result is - * always at most 19 bits. - */ - if ((x &= 0xff) == 0) - return -1; - - if ((x & 0xf0) == 0) - lg2 = 4, x <<= 4; - - if ((x & 0xc0) == 0) - lg2 += 2, x <<= 2; - - if ((x & 0x80) == 0) - lg2 += 1, x <<= 1; - - /* result is at most 19 bits, so this cast is safe: */ - return (png_int_32)((lg2 << 16) + ((png_8bit_l2[x-128]+32768)>>16)); -} - -/* The above gives exact (to 16 binary places) log2 values for 8-bit images, - * for 16-bit images we use the most significant 8 bits of the 16-bit value to - * get an approximation then multiply the approximation by a correction factor - * determined by the remaining up to 8 bits. This requires an additional step - * in the 16-bit case. - * - * We want log2(value/65535), we have log2(v'/255), where: - * - * value = v' * 256 + v'' - * = v' * f - * - * So f is value/v', which is equal to (256+v''/v') since v' is in the range 128 - * to 255 and v'' is in the range 0 to 255 f will be in the range 256 to less - * than 258. The final factor also needs to correct for the fact that our 8-bit - * value is scaled by 255, whereas the 16-bit values must be scaled by 65535. - * - * This gives a final formula using a calculated value 'x' which is value/v' and - * scaling by 65536 to match the above table: - * - * log2(x/257) * 65536 - * - * Since these numbers are so close to '1' we can use simple linear - * interpolation between the two end values 256/257 (result -368.61) and 258/257 - * (result 367.179). The values used below are scaled by a further 64 to give - * 16-bit precision in the interpolation: - * - * Start (256): -23591 - * Zero (257): 0 - * End (258): 23499 - */ -static png_int_32 -png_log16bit(png_uint_32 x) -{ - unsigned int lg2 = 0; - - /* As above, but now the input has 16 bits. */ - if ((x &= 0xffff) == 0) - return -1; - - if ((x & 0xff00) == 0) - lg2 = 8, x <<= 8; - - if ((x & 0xf000) == 0) - lg2 += 4, x <<= 4; - - if ((x & 0xc000) == 0) - lg2 += 2, x <<= 2; - - if ((x & 0x8000) == 0) - lg2 += 1, x <<= 1; - - /* Calculate the base logarithm from the top 8 bits as a 28-bit fractional - * value. - */ - lg2 <<= 28; - lg2 += (png_8bit_l2[(x>>8)-128]+8) >> 4; - - /* Now we need to interpolate the factor, this requires a division by the top - * 8 bits. Do this with maximum precision. - */ - x = ((x << 16) + (x >> 9)) / (x >> 8); - - /* Since we divided by the top 8 bits of 'x' there will be a '1' at 1<<24, - * the value at 1<<16 (ignoring this) will be 0 or 1; this gives us exactly - * 16 bits to interpolate to get the low bits of the result. Round the - * answer. Note that the end point values are scaled by 64 to retain overall - * precision and that 'lg2' is current scaled by an extra 12 bits, so adjust - * the overall scaling by 6-12. Round at every step. - */ - x -= 1U << 24; - - if (x <= 65536U) /* <= '257' */ - lg2 += ((23591U * (65536U-x)) + (1U << (16+6-12-1))) >> (16+6-12); - - else - lg2 -= ((23499U * (x-65536U)) + (1U << (16+6-12-1))) >> (16+6-12); - - /* Safe, because the result can't have more than 20 bits: */ - return (png_int_32)((lg2 + 2048) >> 12); -} - -/* The 'exp()' case must invert the above, taking a 20-bit fixed point - * logarithmic value and returning a 16 or 8-bit number as appropriate. In - * each case only the low 16 bits are relevant - the fraction - since the - * integer bits (the top 4) simply determine a shift. - * - * The worst case is the 16-bit distinction between 65535 and 65534, this - * requires perhaps spurious accuracty in the decoding of the logarithm to - * distinguish log2(65535/65534.5) - 10^-5 or 17 bits. There is little chance - * of getting this accuracy in practice. - * - * To deal with this the following exp() function works out the exponent of the - * frational part of the logarithm by using an accurate 32-bit value from the - * top four fractional bits then multiplying in the remaining bits. - */ -static const png_uint_32 -png_32bit_exp[16] = -{ - /* NOTE: the first entry is deliberately set to the maximum 32-bit value. */ - 4294967295U, 4112874773U, 3938502376U, 3771522796U, 3611622603U, 3458501653U, - 3311872529U, 3171459999U, 3037000500U, 2908241642U, 2784941738U, 2666869345U, - 2553802834U, 2445529972U, 2341847524U, 2242560872U -}; - -/* Adjustment table; provided to explain the numbers in the code below. */ -#if 0 -for (i=11;i>=0;--i){ print i, " ", (1 - e(-(2^i)/65536*l(2))) * 2^(32-i), "\n"} - 11 44937.64284865548751208448 - 10 45180.98734845585101160448 - 9 45303.31936980687359311872 - 8 45364.65110595323018870784 - 7 45395.35850361789624614912 - 6 45410.72259715102037508096 - 5 45418.40724413220722311168 - 4 45422.25021786898173001728 - 3 45424.17186732298419044352 - 2 45425.13273269940811464704 - 1 45425.61317555035558641664 - 0 45425.85339951654943850496 -#endif - -static png_uint_32 -png_exp(png_fixed_point x) -{ - if (x > 0 && x <= 0xfffff) /* Else overflow or zero (underflow) */ - { - /* Obtain a 4-bit approximation */ - png_uint_32 e = png_32bit_exp[(x >> 12) & 0xf]; - - /* Incorporate the low 12 bits - these decrease the returned value by - * multiplying by a number less than 1 if the bit is set. The multiplier - * is determined by the above table and the shift. Notice that the values - * converge on 45426 and this is used to allow linear interpolation of the - * low bits. - */ - if (x & 0x800) - e -= (((e >> 16) * 44938U) + 16U) >> 5; - - if (x & 0x400) - e -= (((e >> 16) * 45181U) + 32U) >> 6; - - if (x & 0x200) - e -= (((e >> 16) * 45303U) + 64U) >> 7; - - if (x & 0x100) - e -= (((e >> 16) * 45365U) + 128U) >> 8; - - if (x & 0x080) - e -= (((e >> 16) * 45395U) + 256U) >> 9; - - if (x & 0x040) - e -= (((e >> 16) * 45410U) + 512U) >> 10; - - /* And handle the low 6 bits in a single block. */ - e -= (((e >> 16) * 355U * (x & 0x3fU)) + 256U) >> 9; - - /* Handle the upper bits of x. */ - e >>= x >> 16; - return e; - } - - /* Check for overflow */ - if (x <= 0) - return png_32bit_exp[0]; - - /* Else underflow */ - return 0; -} - -static png_byte -png_exp8bit(png_fixed_point lg2) -{ - /* Get a 32-bit value: */ - png_uint_32 x = png_exp(lg2); - - /* Convert the 32-bit value to 0..255 by multiplying by 256-1, note that the - * second, rounding, step can't overflow because of the first, subtraction, - * step. - */ - x -= x >> 8; - return (png_byte)((x + 0x7fffffU) >> 24); -} - -#ifdef PNG_16BIT_SUPPORTED -static png_uint_16 -png_exp16bit(png_fixed_point lg2) -{ - /* Get a 32-bit value: */ - png_uint_32 x = png_exp(lg2); - - /* Convert the 32-bit value to 0..65535 by multiplying by 65536-1: */ - x -= x >> 16; - return (png_uint_16)((x + 32767U) >> 16); -} -#endif /* 16BIT */ -#endif /* FLOATING_ARITHMETIC */ - -png_byte -png_gamma_8bit_correct(unsigned int value, png_fixed_point gamma_val) -{ - if (value > 0 && value < 255) - { -# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = floor(255*pow(value/255.,gamma_val*.00001)+.5); - return (png_byte)r; -# else - png_int_32 lg2 = png_log8bit(value); - png_fixed_point res; - - if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1)) - return png_exp8bit(res); - - /* Overflow. */ - value = 0; -# endif - } - - return (png_byte)value; -} - -#ifdef PNG_16BIT_SUPPORTED -png_uint_16 -png_gamma_16bit_correct(unsigned int value, png_fixed_point gamma_val) -{ - if (value > 0 && value < 65535) - { -# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - double r = floor(65535*pow(value/65535.,gamma_val*.00001)+.5); - return (png_uint_16)r; -# else - png_int_32 lg2 = png_log16bit(value); - png_fixed_point res; - - if (png_muldiv(&res, gamma_val, lg2, PNG_FP_1)) - return png_exp16bit(res); - - /* Overflow. */ - value = 0; -# endif - } - - return (png_uint_16)value; -} -#endif /* 16BIT */ - -/* This does the right thing based on the bit_depth field of the - * png_struct, interpreting values as 8-bit or 16-bit. While the result - * is nominally a 16-bit value if bit depth is 8 then the result is - * 8-bit (as are the arguments.) - */ -png_uint_16 /* PRIVATE */ -png_gamma_correct(png_structrp png_ptr, unsigned int value, - png_fixed_point gamma_val) -{ - if (png_ptr->bit_depth == 8) - return png_gamma_8bit_correct(value, gamma_val); - -#ifdef PNG_16BIT_SUPPORTED - else - return png_gamma_16bit_correct(value, gamma_val); -#else - /* should not reach this */ - return 0; -#endif /* 16BIT */ -} - -#ifdef PNG_16BIT_SUPPORTED -/* Internal function to build a single 16-bit table - the table consists of - * 'num' 256 entry subtables, where 'num' is determined by 'shift' - the amount - * to shift the input values right (or 16-number_of_signifiant_bits). - * - * The caller is responsible for ensuring that the table gets cleaned up on - * png_error (i.e. if one of the mallocs below fails) - i.e. the *table argument - * should be somewhere that will be cleaned. - */ -static void -png_build_16bit_table(png_structrp png_ptr, png_uint_16pp *ptable, - PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val) -{ - /* Various values derived from 'shift': */ - PNG_CONST unsigned int num = 1U << (8U - shift); - PNG_CONST unsigned int max = (1U << (16U - shift))-1U; - PNG_CONST unsigned int max_by_2 = 1U << (15U-shift); - unsigned int i; - - png_uint_16pp table = *ptable = - (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p))); - - for (i = 0; i < num; i++) - { - png_uint_16p sub_table = table[i] = - (png_uint_16p)png_malloc(png_ptr, 256 * (sizeof (png_uint_16))); - - /* The 'threshold' test is repeated here because it can arise for one of - * the 16-bit tables even if the others don't hit it. - */ - if (png_gamma_significant(gamma_val)) - { - /* The old code would overflow at the end and this would cause the - * 'pow' function to return a result >1, resulting in an - * arithmetic error. This code follows the spec exactly; ig is - * the recovered input sample, it always has 8-16 bits. - * - * We want input * 65535/max, rounded, the arithmetic fits in 32 - * bits (unsigned) so long as max <= 32767. - */ - unsigned int j; - for (j = 0; j < 256; j++) - { - png_uint_32 ig = (j << (8-shift)) + i; -# ifdef PNG_FLOATING_ARITHMETIC_SUPPORTED - /* Inline the 'max' scaling operation: */ - double d = floor(65535*pow(ig/(double)max, gamma_val*.00001)+.5); - sub_table[j] = (png_uint_16)d; -# else - if (shift != 0) - ig = (ig * 65535U + max_by_2)/max; - - sub_table[j] = png_gamma_16bit_correct(ig, gamma_val); -# endif - } - } - else - { - /* We must still build a table, but do it the fast way. */ - unsigned int j; - - for (j = 0; j < 256; j++) - { - png_uint_32 ig = (j << (8-shift)) + i; - - if (shift != 0) - ig = (ig * 65535U + max_by_2)/max; - - sub_table[j] = (png_uint_16)ig; - } - } - } -} - -/* NOTE: this function expects the *inverse* of the overall gamma transformation - * required. - */ -static void -png_build_16to8_table(png_structrp png_ptr, png_uint_16pp *ptable, - PNG_CONST unsigned int shift, PNG_CONST png_fixed_point gamma_val) -{ - PNG_CONST unsigned int num = 1U << (8U - shift); - PNG_CONST unsigned int max = (1U << (16U - shift))-1U; - unsigned int i; - png_uint_32 last; - - png_uint_16pp table = *ptable = - (png_uint_16pp)png_calloc(png_ptr, num * (sizeof (png_uint_16p))); - - /* 'num' is the number of tables and also the number of low bits of low - * bits of the input 16-bit value used to select a table. Each table is - * itself index by the high 8 bits of the value. - */ - for (i = 0; i < num; i++) - table[i] = (png_uint_16p)png_malloc(png_ptr, - 256 * (sizeof (png_uint_16))); - - /* 'gamma_val' is set to the reciprocal of the value calculated above, so - * pow(out,g) is an *input* value. 'last' is the last input value set. - * - * In the loop 'i' is used to find output values. Since the output is - * 8-bit there are only 256 possible values. The tables are set up to - * select the closest possible output value for each input by finding - * the input value at the boundary between each pair of output values - * and filling the table up to that boundary with the lower output - * value. - * - * The boundary values are 0.5,1.5..253.5,254.5. Since these are 9-bit - * values the code below uses a 16-bit value in i; the values start at - * 128.5 (for 0.5) and step by 257, for a total of 254 values (the last - * entries are filled with 255). Start i at 128 and fill all 'last' - * table entries <= 'max' - */ - last = 0; - for (i = 0; i < 255; ++i) /* 8-bit output value */ - { - /* Find the corresponding maximum input value */ - png_uint_16 out = (png_uint_16)(i * 257U); /* 16-bit output value */ - - /* Find the boundary value in 16 bits: */ - png_uint_32 bound = png_gamma_16bit_correct(out+128U, gamma_val); - - /* Adjust (round) to (16-shift) bits: */ - bound = (bound * max + 32768U)/65535U + 1U; - - while (last < bound) - { - table[last & (0xffU >> shift)][last >> (8U - shift)] = out; - last++; - } - } - - /* And fill in the final entries. */ - while (last < (num << 8)) - { - table[last & (0xff >> shift)][last >> (8U - shift)] = 65535U; - last++; - } -} -#endif /* 16BIT */ - -/* Build a single 8-bit table: same as the 16-bit case but much simpler (and - * typically much faster). Note that libpng currently does no sBIT processing - * (apparently contrary to the spec) so a 256 entry table is always generated. - */ -static void -png_build_8bit_table(png_structrp png_ptr, png_bytepp ptable, - PNG_CONST png_fixed_point gamma_val) -{ - unsigned int i; - png_bytep table = *ptable = (png_bytep)png_malloc(png_ptr, 256); - - if (png_gamma_significant(gamma_val)) for (i=0; i<256; i++) - table[i] = png_gamma_8bit_correct(i, gamma_val); - - else for (i=0; i<256; ++i) - table[i] = (png_byte)i; -} - -/* Used from png_read_destroy and below to release the memory used by the gamma - * tables. - */ -void /* PRIVATE */ -png_destroy_gamma_table(png_structrp png_ptr) -{ - png_free(png_ptr, png_ptr->gamma_table); - png_ptr->gamma_table = NULL; - -#ifdef PNG_16BIT_SUPPORTED - if (png_ptr->gamma_16_table != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_table[i]); - } - png_free(png_ptr, png_ptr->gamma_16_table); - png_ptr->gamma_16_table = NULL; - } -#endif /* 16BIT */ - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - png_free(png_ptr, png_ptr->gamma_from_1); - png_ptr->gamma_from_1 = NULL; - png_free(png_ptr, png_ptr->gamma_to_1); - png_ptr->gamma_to_1 = NULL; - -#ifdef PNG_16BIT_SUPPORTED - if (png_ptr->gamma_16_from_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_from_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_from_1); - png_ptr->gamma_16_from_1 = NULL; - } - if (png_ptr->gamma_16_to_1 != NULL) - { - int i; - int istop = (1 << (8 - png_ptr->gamma_shift)); - for (i = 0; i < istop; i++) - { - png_free(png_ptr, png_ptr->gamma_16_to_1[i]); - } - png_free(png_ptr, png_ptr->gamma_16_to_1); - png_ptr->gamma_16_to_1 = NULL; - } -#endif /* 16BIT */ -#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ -} - -/* We build the 8- or 16-bit gamma tables here. Note that for 16-bit - * tables, we don't make a full table if we are reducing to 8-bit in - * the future. Note also how the gamma_16 tables are segmented so that - * we don't need to allocate > 64K chunks for a full 16-bit table. - */ -void /* PRIVATE */ -png_build_gamma_table(png_structrp png_ptr, int bit_depth) -{ - png_debug(1, "in png_build_gamma_table"); - - /* Remove any existing table; this copes with multiple calls to - * png_read_update_info. The warning is because building the gamma tables - * multiple times is a performance hit - it's harmless but the ability to call - * png_read_update_info() multiple times is new in 1.5.6 so it seems sensible - * to warn if the app introduces such a hit. - */ - if (png_ptr->gamma_table != NULL || png_ptr->gamma_16_table != NULL) - { - png_warning(png_ptr, "gamma table being rebuilt"); - png_destroy_gamma_table(png_ptr); - } - - if (bit_depth <= 8) - { - png_build_8bit_table(png_ptr, &png_ptr->gamma_table, - png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma, - png_ptr->screen_gamma) : PNG_FP_1); - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) - { - png_build_8bit_table(png_ptr, &png_ptr->gamma_to_1, - png_reciprocal(png_ptr->colorspace.gamma)); - - png_build_8bit_table(png_ptr, &png_ptr->gamma_from_1, - png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) : - png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */); - } -#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ - } -#ifdef PNG_16BIT_SUPPORTED - else - { - png_byte shift, sig_bit; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - sig_bit = png_ptr->sig_bit.red; - - if (png_ptr->sig_bit.green > sig_bit) - sig_bit = png_ptr->sig_bit.green; - - if (png_ptr->sig_bit.blue > sig_bit) - sig_bit = png_ptr->sig_bit.blue; - } - else - sig_bit = png_ptr->sig_bit.gray; - - /* 16-bit gamma code uses this equation: - * - * ov = table[(iv & 0xff) >> gamma_shift][iv >> 8] - * - * Where 'iv' is the input color value and 'ov' is the output value - - * pow(iv, gamma). - * - * Thus the gamma table consists of up to 256 256 entry tables. The table - * is selected by the (8-gamma_shift) most significant of the low 8 bits of - * the color value then indexed by the upper 8 bits: - * - * table[low bits][high 8 bits] - * - * So the table 'n' corresponds to all those 'iv' of: - * - * ..<(n+1 << gamma_shift)-1> - * - */ - if (sig_bit > 0 && sig_bit < 16U) - shift = (png_byte)(16U - sig_bit); /* shift == insignificant bits */ - - else - shift = 0; /* keep all 16 bits */ - - if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) - { - /* PNG_MAX_GAMMA_8 is the number of bits to keep - effectively - * the significant bits in the *input* when the output will - * eventually be 8 bits. By default it is 11. - */ - if (shift < (16U - PNG_MAX_GAMMA_8)) - shift = (16U - PNG_MAX_GAMMA_8); - } - - if (shift > 8U) - shift = 8U; /* Guarantees at least one table! */ - - png_ptr->gamma_shift = shift; - - /* NOTE: prior to 1.5.4 this test used to include PNG_BACKGROUND (now - * PNG_COMPOSE). This effectively smashed the background calculation for - * 16-bit output because the 8-bit table assumes the result will be reduced - * to 8 bits. - */ - if (png_ptr->transformations & (PNG_16_TO_8 | PNG_SCALE_16_TO_8)) - png_build_16to8_table(png_ptr, &png_ptr->gamma_16_table, shift, - png_ptr->screen_gamma > 0 ? png_product2(png_ptr->colorspace.gamma, - png_ptr->screen_gamma) : PNG_FP_1); - - else - png_build_16bit_table(png_ptr, &png_ptr->gamma_16_table, shift, - png_ptr->screen_gamma > 0 ? png_reciprocal2(png_ptr->colorspace.gamma, - png_ptr->screen_gamma) : PNG_FP_1); - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - if (png_ptr->transformations & (PNG_COMPOSE | PNG_RGB_TO_GRAY)) - { - png_build_16bit_table(png_ptr, &png_ptr->gamma_16_to_1, shift, - png_reciprocal(png_ptr->colorspace.gamma)); - - /* Notice that the '16 from 1' table should be full precision, however - * the lookup on this table still uses gamma_shift, so it can't be. - * TODO: fix this. - */ - png_build_16bit_table(png_ptr, &png_ptr->gamma_16_from_1, shift, - png_ptr->screen_gamma > 0 ? png_reciprocal(png_ptr->screen_gamma) : - png_ptr->colorspace.gamma/* Probably doing rgb_to_gray */); - } -#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ - } -#endif /* 16BIT */ -} -#endif /* READ_GAMMA */ - -/* HARDWARE OR SOFTWARE OPTION SUPPORT */ -#ifdef PNG_SET_OPTION_SUPPORTED -int PNGAPI -png_set_option(png_structrp png_ptr, int option, int onoff) -{ - if (png_ptr != NULL && option >= 0 && option < PNG_OPTION_NEXT && - (option & 1) == 0) - { - int mask = 3 << option; - int setting = (2 + (onoff != 0)) << option; - int current = png_ptr->options; - - png_ptr->options = (png_byte)((current & ~mask) | setting); - - return (current & mask) >> option; - } - - return PNG_OPTION_INVALID; -} -#endif - -/* sRGB support */ -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) -/* sRGB conversion tables; these are machine generated with the code in - * contrib/tools/makesRGB.c. The actual sRGB transfer curve defined in the - * specification (see the article at http://en.wikipedia.org/wiki/SRGB) - * is used, not the gamma=1/2.2 approximation use elsewhere in libpng. - * The sRGB to linear table is exact (to the nearest 16 bit linear fraction). - * The inverse (linear to sRGB) table has accuracies as follows: - * - * For all possible (255*65535+1) input values: - * - * error: -0.515566 - 0.625971, 79441 (0.475369%) of readings inexact - * - * For the input values corresponding to the 65536 16-bit values: - * - * error: -0.513727 - 0.607759, 308 (0.469978%) of readings inexact - * - * In all cases the inexact readings are off by one. - */ - -#ifdef PNG_SIMPLIFIED_READ_SUPPORTED -/* The convert-to-sRGB table is only currently required for read. */ -const png_uint_16 png_sRGB_table[256] = -{ - 0,20,40,60,80,99,119,139, - 159,179,199,219,241,264,288,313, - 340,367,396,427,458,491,526,562, - 599,637,677,718,761,805,851,898, - 947,997,1048,1101,1156,1212,1270,1330, - 1391,1453,1517,1583,1651,1720,1790,1863, - 1937,2013,2090,2170,2250,2333,2418,2504, - 2592,2681,2773,2866,2961,3058,3157,3258, - 3360,3464,3570,3678,3788,3900,4014,4129, - 4247,4366,4488,4611,4736,4864,4993,5124, - 5257,5392,5530,5669,5810,5953,6099,6246, - 6395,6547,6700,6856,7014,7174,7335,7500, - 7666,7834,8004,8177,8352,8528,8708,8889, - 9072,9258,9445,9635,9828,10022,10219,10417, - 10619,10822,11028,11235,11446,11658,11873,12090, - 12309,12530,12754,12980,13209,13440,13673,13909, - 14146,14387,14629,14874,15122,15371,15623,15878, - 16135,16394,16656,16920,17187,17456,17727,18001, - 18277,18556,18837,19121,19407,19696,19987,20281, - 20577,20876,21177,21481,21787,22096,22407,22721, - 23038,23357,23678,24002,24329,24658,24990,25325, - 25662,26001,26344,26688,27036,27386,27739,28094, - 28452,28813,29176,29542,29911,30282,30656,31033, - 31412,31794,32179,32567,32957,33350,33745,34143, - 34544,34948,35355,35764,36176,36591,37008,37429, - 37852,38278,38706,39138,39572,40009,40449,40891, - 41337,41785,42236,42690,43147,43606,44069,44534, - 45002,45473,45947,46423,46903,47385,47871,48359, - 48850,49344,49841,50341,50844,51349,51858,52369, - 52884,53401,53921,54445,54971,55500,56032,56567, - 57105,57646,58190,58737,59287,59840,60396,60955, - 61517,62082,62650,63221,63795,64372,64952,65535 -}; - -#endif /* simplified read only */ - -/* The base/delta tables are required for both read and write (but currently - * only the simplified versions.) - */ -const png_uint_16 png_sRGB_base[512] = -{ - 128,1782,3383,4644,5675,6564,7357,8074, - 8732,9346,9921,10463,10977,11466,11935,12384, - 12816,13233,13634,14024,14402,14769,15125,15473, - 15812,16142,16466,16781,17090,17393,17690,17981, - 18266,18546,18822,19093,19359,19621,19879,20133, - 20383,20630,20873,21113,21349,21583,21813,22041, - 22265,22487,22707,22923,23138,23350,23559,23767, - 23972,24175,24376,24575,24772,24967,25160,25352, - 25542,25730,25916,26101,26284,26465,26645,26823, - 27000,27176,27350,27523,27695,27865,28034,28201, - 28368,28533,28697,28860,29021,29182,29341,29500, - 29657,29813,29969,30123,30276,30429,30580,30730, - 30880,31028,31176,31323,31469,31614,31758,31902, - 32045,32186,32327,32468,32607,32746,32884,33021, - 33158,33294,33429,33564,33697,33831,33963,34095, - 34226,34357,34486,34616,34744,34873,35000,35127, - 35253,35379,35504,35629,35753,35876,35999,36122, - 36244,36365,36486,36606,36726,36845,36964,37083, - 37201,37318,37435,37551,37668,37783,37898,38013, - 38127,38241,38354,38467,38580,38692,38803,38915, - 39026,39136,39246,39356,39465,39574,39682,39790, - 39898,40005,40112,40219,40325,40431,40537,40642, - 40747,40851,40955,41059,41163,41266,41369,41471, - 41573,41675,41777,41878,41979,42079,42179,42279, - 42379,42478,42577,42676,42775,42873,42971,43068, - 43165,43262,43359,43456,43552,43648,43743,43839, - 43934,44028,44123,44217,44311,44405,44499,44592, - 44685,44778,44870,44962,45054,45146,45238,45329, - 45420,45511,45601,45692,45782,45872,45961,46051, - 46140,46229,46318,46406,46494,46583,46670,46758, - 46846,46933,47020,47107,47193,47280,47366,47452, - 47538,47623,47709,47794,47879,47964,48048,48133, - 48217,48301,48385,48468,48552,48635,48718,48801, - 48884,48966,49048,49131,49213,49294,49376,49458, - 49539,49620,49701,49782,49862,49943,50023,50103, - 50183,50263,50342,50422,50501,50580,50659,50738, - 50816,50895,50973,51051,51129,51207,51285,51362, - 51439,51517,51594,51671,51747,51824,51900,51977, - 52053,52129,52205,52280,52356,52432,52507,52582, - 52657,52732,52807,52881,52956,53030,53104,53178, - 53252,53326,53400,53473,53546,53620,53693,53766, - 53839,53911,53984,54056,54129,54201,54273,54345, - 54417,54489,54560,54632,54703,54774,54845,54916, - 54987,55058,55129,55199,55269,55340,55410,55480, - 55550,55620,55689,55759,55828,55898,55967,56036, - 56105,56174,56243,56311,56380,56448,56517,56585, - 56653,56721,56789,56857,56924,56992,57059,57127, - 57194,57261,57328,57395,57462,57529,57595,57662, - 57728,57795,57861,57927,57993,58059,58125,58191, - 58256,58322,58387,58453,58518,58583,58648,58713, - 58778,58843,58908,58972,59037,59101,59165,59230, - 59294,59358,59422,59486,59549,59613,59677,59740, - 59804,59867,59930,59993,60056,60119,60182,60245, - 60308,60370,60433,60495,60558,60620,60682,60744, - 60806,60868,60930,60992,61054,61115,61177,61238, - 61300,61361,61422,61483,61544,61605,61666,61727, - 61788,61848,61909,61969,62030,62090,62150,62211, - 62271,62331,62391,62450,62510,62570,62630,62689, - 62749,62808,62867,62927,62986,63045,63104,63163, - 63222,63281,63340,63398,63457,63515,63574,63632, - 63691,63749,63807,63865,63923,63981,64039,64097, - 64155,64212,64270,64328,64385,64443,64500,64557, - 64614,64672,64729,64786,64843,64900,64956,65013, - 65070,65126,65183,65239,65296,65352,65409,65465 -}; - -const png_byte png_sRGB_delta[512] = -{ - 207,201,158,129,113,100,90,82,77,72,68,64,61,59,56,54, - 52,50,49,47,46,45,43,42,41,40,39,39,38,37,36,36, - 35,34,34,33,33,32,32,31,31,30,30,30,29,29,28,28, - 28,27,27,27,27,26,26,26,25,25,25,25,24,24,24,24, - 23,23,23,23,23,22,22,22,22,22,22,21,21,21,21,21, - 21,20,20,20,20,20,20,20,20,19,19,19,19,19,19,19, - 19,18,18,18,18,18,18,18,18,18,18,17,17,17,17,17, - 17,17,17,17,17,17,16,16,16,16,16,16,16,16,16,16, - 16,16,16,16,15,15,15,15,15,15,15,15,15,15,15,15, - 15,15,15,15,14,14,14,14,14,14,14,14,14,14,14,14, - 14,14,14,14,14,14,14,13,13,13,13,13,13,13,13,13, - 13,13,13,13,13,13,13,13,13,13,13,13,13,13,12,12, - 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, - 12,12,12,12,12,12,12,12,12,12,12,12,11,11,11,11, - 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, - 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, - 11,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, - 10,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 -}; -#endif /* SIMPLIFIED READ/WRITE sRGB support */ - -/* SIMPLIFIED READ/WRITE SUPPORT */ -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) -static int -png_image_free_function(png_voidp argument) -{ - png_imagep image = png_voidcast(png_imagep, argument); - png_controlp cp = image->opaque; - png_control c; - - /* Double check that we have a png_ptr - it should be impossible to get here - * without one. - */ - if (cp->png_ptr == NULL) - return 0; - - /* First free any data held in the control structure. */ -# ifdef PNG_STDIO_SUPPORTED - if (cp->owned_file) - { - FILE *fp = png_voidcast(FILE*, cp->png_ptr->io_ptr); - cp->owned_file = 0; - - /* Ignore errors here. */ - if (fp != NULL) - { - cp->png_ptr->io_ptr = NULL; - (void)fclose(fp); - } - } -# endif - - /* Copy the control structure so that the original, allocated, version can be - * safely freed. Notice that a png_error here stops the remainder of the - * cleanup, but this is probably fine because that would indicate bad memory - * problems anyway. - */ - c = *cp; - image->opaque = &c; - png_free(c.png_ptr, cp); - - /* Then the structures, calling the correct API. */ - if (c.for_write) - { -# ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED - png_destroy_write_struct(&c.png_ptr, &c.info_ptr); -# else - png_error(c.png_ptr, "simplified write not supported"); -# endif - } - else - { -# ifdef PNG_SIMPLIFIED_READ_SUPPORTED - png_destroy_read_struct(&c.png_ptr, &c.info_ptr, NULL); -# else - png_error(c.png_ptr, "simplified read not supported"); -# endif - } - - /* Success. */ - return 1; -} - -void PNGAPI -png_image_free(png_imagep image) -{ - /* Safely call the real function, but only if doing so is safe at this point - * (if not inside an error handling context). Otherwise assume - * png_safe_execute will call this API after the return. - */ - if (image != NULL && image->opaque != NULL && - image->opaque->error_buf == NULL) - { - /* Ignore errors here: */ - (void)png_safe_execute(image, png_image_free_function, image); - image->opaque = NULL; - } -} - -int /* PRIVATE */ -png_image_error(png_imagep image, png_const_charp error_message) -{ - /* Utility to log an error. */ - png_safecat(image->message, (sizeof image->message), 0, error_message); - image->warning_or_error |= PNG_IMAGE_ERROR; - png_image_free(image); - return 0; -} - -#endif /* SIMPLIFIED READ/WRITE */ -#endif /* defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) */ diff --git a/png/png.h b/png/png.h deleted file mode 100755 index 75e8736..0000000 --- a/png/png.h +++ /dev/null @@ -1,3268 +0,0 @@ - -/* png.h - header file for PNG reference library - * - * libpng version 1.6.12 - June 12, 2014 - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license (See LICENSE, below) - * - * Authors and maintainers: - * libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat - * libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger - * libpng versions 0.97, January 1998, through 1.6.12 - June 12, 2014: Glenn - * See also "Contributing Authors", below. - * - * Note about libpng version numbers: - * - * Due to various miscommunications, unforeseen code incompatibilities - * and occasional factors outside the authors' control, version numbering - * on the library has not always been consistent and straightforward. - * The following table summarizes matters since version 0.89c, which was - * the first widely used release: - * - * source png.h png.h shared-lib - * version string int version - * ------- ------ ----- ---------- - * 0.89c "1.0 beta 3" 0.89 89 1.0.89 - * 0.90 "1.0 beta 4" 0.90 90 0.90 [should have been 2.0.90] - * 0.95 "1.0 beta 5" 0.95 95 0.95 [should have been 2.0.95] - * 0.96 "1.0 beta 6" 0.96 96 0.96 [should have been 2.0.96] - * 0.97b "1.00.97 beta 7" 1.00.97 97 1.0.1 [should have been 2.0.97] - * 0.97c 0.97 97 2.0.97 - * 0.98 0.98 98 2.0.98 - * 0.99 0.99 98 2.0.99 - * 0.99a-m 0.99 99 2.0.99 - * 1.00 1.00 100 2.1.0 [100 should be 10000] - * 1.0.0 (from here on, the 100 2.1.0 [100 should be 10000] - * 1.0.1 png.h string is 10001 2.1.0 - * 1.0.1a-e identical to the 10002 from here on, the shared library - * 1.0.2 source version) 10002 is 2.V where V is the source code - * 1.0.2a-b 10003 version, except as noted. - * 1.0.3 10003 - * 1.0.3a-d 10004 - * 1.0.4 10004 - * 1.0.4a-f 10005 - * 1.0.5 (+ 2 patches) 10005 - * 1.0.5a-d 10006 - * 1.0.5e-r 10100 (not source compatible) - * 1.0.5s-v 10006 (not binary compatible) - * 1.0.6 (+ 3 patches) 10006 (still binary incompatible) - * 1.0.6d-f 10007 (still binary incompatible) - * 1.0.6g 10007 - * 1.0.6h 10007 10.6h (testing xy.z so-numbering) - * 1.0.6i 10007 10.6i - * 1.0.6j 10007 2.1.0.6j (incompatible with 1.0.0) - * 1.0.7beta11-14 DLLNUM 10007 2.1.0.7beta11-14 (binary compatible) - * 1.0.7beta15-18 1 10007 2.1.0.7beta15-18 (binary compatible) - * 1.0.7rc1-2 1 10007 2.1.0.7rc1-2 (binary compatible) - * 1.0.7 1 10007 (still compatible) - * 1.0.8beta1-4 1 10008 2.1.0.8beta1-4 - * 1.0.8rc1 1 10008 2.1.0.8rc1 - * 1.0.8 1 10008 2.1.0.8 - * 1.0.9beta1-6 1 10009 2.1.0.9beta1-6 - * 1.0.9rc1 1 10009 2.1.0.9rc1 - * 1.0.9beta7-10 1 10009 2.1.0.9beta7-10 - * 1.0.9rc2 1 10009 2.1.0.9rc2 - * 1.0.9 1 10009 2.1.0.9 - * 1.0.10beta1 1 10010 2.1.0.10beta1 - * 1.0.10rc1 1 10010 2.1.0.10rc1 - * 1.0.10 1 10010 2.1.0.10 - * 1.0.11beta1-3 1 10011 2.1.0.11beta1-3 - * 1.0.11rc1 1 10011 2.1.0.11rc1 - * 1.0.11 1 10011 2.1.0.11 - * 1.0.12beta1-2 2 10012 2.1.0.12beta1-2 - * 1.0.12rc1 2 10012 2.1.0.12rc1 - * 1.0.12 2 10012 2.1.0.12 - * 1.1.0a-f - 10100 2.1.1.0a-f (branch abandoned) - * 1.2.0beta1-2 2 10200 2.1.2.0beta1-2 - * 1.2.0beta3-5 3 10200 3.1.2.0beta3-5 - * 1.2.0rc1 3 10200 3.1.2.0rc1 - * 1.2.0 3 10200 3.1.2.0 - * 1.2.1beta1-4 3 10201 3.1.2.1beta1-4 - * 1.2.1rc1-2 3 10201 3.1.2.1rc1-2 - * 1.2.1 3 10201 3.1.2.1 - * 1.2.2beta1-6 12 10202 12.so.0.1.2.2beta1-6 - * 1.0.13beta1 10 10013 10.so.0.1.0.13beta1 - * 1.0.13rc1 10 10013 10.so.0.1.0.13rc1 - * 1.2.2rc1 12 10202 12.so.0.1.2.2rc1 - * 1.0.13 10 10013 10.so.0.1.0.13 - * 1.2.2 12 10202 12.so.0.1.2.2 - * 1.2.3rc1-6 12 10203 12.so.0.1.2.3rc1-6 - * 1.2.3 12 10203 12.so.0.1.2.3 - * 1.2.4beta1-3 13 10204 12.so.0.1.2.4beta1-3 - * 1.0.14rc1 13 10014 10.so.0.1.0.14rc1 - * 1.2.4rc1 13 10204 12.so.0.1.2.4rc1 - * 1.0.14 10 10014 10.so.0.1.0.14 - * 1.2.4 13 10204 12.so.0.1.2.4 - * 1.2.5beta1-2 13 10205 12.so.0.1.2.5beta1-2 - * 1.0.15rc1-3 10 10015 10.so.0.1.0.15rc1-3 - * 1.2.5rc1-3 13 10205 12.so.0.1.2.5rc1-3 - * 1.0.15 10 10015 10.so.0.1.0.15 - * 1.2.5 13 10205 12.so.0.1.2.5 - * 1.2.6beta1-4 13 10206 12.so.0.1.2.6beta1-4 - * 1.0.16 10 10016 10.so.0.1.0.16 - * 1.2.6 13 10206 12.so.0.1.2.6 - * 1.2.7beta1-2 13 10207 12.so.0.1.2.7beta1-2 - * 1.0.17rc1 10 10017 12.so.0.1.0.17rc1 - * 1.2.7rc1 13 10207 12.so.0.1.2.7rc1 - * 1.0.17 10 10017 12.so.0.1.0.17 - * 1.2.7 13 10207 12.so.0.1.2.7 - * 1.2.8beta1-5 13 10208 12.so.0.1.2.8beta1-5 - * 1.0.18rc1-5 10 10018 12.so.0.1.0.18rc1-5 - * 1.2.8rc1-5 13 10208 12.so.0.1.2.8rc1-5 - * 1.0.18 10 10018 12.so.0.1.0.18 - * 1.2.8 13 10208 12.so.0.1.2.8 - * 1.2.9beta1-3 13 10209 12.so.0.1.2.9beta1-3 - * 1.2.9beta4-11 13 10209 12.so.0.9[.0] - * 1.2.9rc1 13 10209 12.so.0.9[.0] - * 1.2.9 13 10209 12.so.0.9[.0] - * 1.2.10beta1-7 13 10210 12.so.0.10[.0] - * 1.2.10rc1-2 13 10210 12.so.0.10[.0] - * 1.2.10 13 10210 12.so.0.10[.0] - * 1.4.0beta1-5 14 10400 14.so.0.0[.0] - * 1.2.11beta1-4 13 10211 12.so.0.11[.0] - * 1.4.0beta7-8 14 10400 14.so.0.0[.0] - * 1.2.11 13 10211 12.so.0.11[.0] - * 1.2.12 13 10212 12.so.0.12[.0] - * 1.4.0beta9-14 14 10400 14.so.0.0[.0] - * 1.2.13 13 10213 12.so.0.13[.0] - * 1.4.0beta15-36 14 10400 14.so.0.0[.0] - * 1.4.0beta37-87 14 10400 14.so.14.0[.0] - * 1.4.0rc01 14 10400 14.so.14.0[.0] - * 1.4.0beta88-109 14 10400 14.so.14.0[.0] - * 1.4.0rc02-08 14 10400 14.so.14.0[.0] - * 1.4.0 14 10400 14.so.14.0[.0] - * 1.4.1beta01-03 14 10401 14.so.14.1[.0] - * 1.4.1rc01 14 10401 14.so.14.1[.0] - * 1.4.1beta04-12 14 10401 14.so.14.1[.0] - * 1.4.1 14 10401 14.so.14.1[.0] - * 1.4.2 14 10402 14.so.14.2[.0] - * 1.4.3 14 10403 14.so.14.3[.0] - * 1.4.4 14 10404 14.so.14.4[.0] - * 1.5.0beta01-58 15 10500 15.so.15.0[.0] - * 1.5.0rc01-07 15 10500 15.so.15.0[.0] - * 1.5.0 15 10500 15.so.15.0[.0] - * 1.5.1beta01-11 15 10501 15.so.15.1[.0] - * 1.5.1rc01-02 15 10501 15.so.15.1[.0] - * 1.5.1 15 10501 15.so.15.1[.0] - * 1.5.2beta01-03 15 10502 15.so.15.2[.0] - * 1.5.2rc01-03 15 10502 15.so.15.2[.0] - * 1.5.2 15 10502 15.so.15.2[.0] - * 1.5.3beta01-10 15 10503 15.so.15.3[.0] - * 1.5.3rc01-02 15 10503 15.so.15.3[.0] - * 1.5.3beta11 15 10503 15.so.15.3[.0] - * 1.5.3 [omitted] - * 1.5.4beta01-08 15 10504 15.so.15.4[.0] - * 1.5.4rc01 15 10504 15.so.15.4[.0] - * 1.5.4 15 10504 15.so.15.4[.0] - * 1.5.5beta01-08 15 10505 15.so.15.5[.0] - * 1.5.5rc01 15 10505 15.so.15.5[.0] - * 1.5.5 15 10505 15.so.15.5[.0] - * 1.5.6beta01-07 15 10506 15.so.15.6[.0] - * 1.5.6rc01-03 15 10506 15.so.15.6[.0] - * 1.5.6 15 10506 15.so.15.6[.0] - * 1.5.7beta01-05 15 10507 15.so.15.7[.0] - * 1.5.7rc01-03 15 10507 15.so.15.7[.0] - * 1.5.7 15 10507 15.so.15.7[.0] - * 1.6.0beta01-40 16 10600 16.so.16.0[.0] - * 1.6.0rc01-08 16 10600 16.so.16.0[.0] - * 1.6.0 16 10600 16.so.16.0[.0] - * 1.6.1beta01-09 16 10601 16.so.16.1[.0] - * 1.6.1rc01 16 10601 16.so.16.1[.0] - * 1.6.1 16 10601 16.so.16.1[.0] - * 1.6.2beta01 16 10602 16.so.16.2[.0] - * 1.6.2rc01-06 16 10602 16.so.16.2[.0] - * 1.6.2 16 10602 16.so.16.2[.0] - * 1.6.3beta01-11 16 10603 16.so.16.3[.0] - * 1.6.3rc01 16 10603 16.so.16.3[.0] - * 1.6.3 16 10603 16.so.16.3[.0] - * 1.6.4beta01-02 16 10604 16.so.16.4[.0] - * 1.6.4rc01 16 10604 16.so.16.4[.0] - * 1.6.4 16 10604 16.so.16.4[.0] - * 1.6.5 16 10605 16.so.16.5[.0] - * 1.6.6 16 10606 16.so.16.6[.0] - * 1.6.7beta01-04 16 10607 16.so.16.7[.0] - * 1.6.7rc01-03 16 10607 16.so.16.7[.0] - * 1.6.7 16 10607 16.so.16.7[.0] - * 1.6.8beta01-02 16 10608 16.so.16.8[.0] - * 1.6.8rc01-02 16 10608 16.so.16.8[.0] - * 1.6.8 16 10608 16.so.16.8[.0] - * 1.6.9beta01-04 16 10609 16.so.16.9[.0] - * 1.6.9rc01-02 16 10609 16.so.16.9[.0] - * 1.6.9 16 10609 16.so.16.9[.0] - * 1.6.10beta01-03 16 10610 16.so.16.10[.0] - * 1.6.10rc01-03 16 10610 16.so.16.10[.0] - * 1.6.10 16 10610 16.so.16.10[.0] - * 1.6.11beta01-06 16 10611 16.so.16.11[.0] - * 1.6.11rc01-02 16 10611 16.so.16.11[.0] - * 1.6.11 16 10611 16.so.16.11[.0] - * 1.6.12rc01-03 16 10612 16.so.16.12[.0] - * 1.6.12 16 10612 16.so.16.12[.0] - * - * Henceforth the source version will match the shared-library major - * and minor numbers; the shared-library major version number will be - * used for changes in backward compatibility, as it is intended. The - * PNG_LIBPNG_VER macro, which is not used within libpng but is available - * for applications, is an unsigned integer of the form xyyzz corresponding - * to the source version x.y.z (leading zeros in y and z). Beta versions - * were given the previous public release number plus a letter, until - * version 1.0.6j; from then on they were given the upcoming public - * release number plus "betaNN" or "rcNN". - * - * Binary incompatibility exists only when applications make direct access - * to the info_ptr or png_ptr members through png.h, and the compiled - * application is loaded with a different version of the library. - * - * DLLNUM will change each time there are forward or backward changes - * in binary compatibility (e.g., when a new feature is added). - * - * See libpng-manual.txt or libpng.3 for more information. The PNG - * specification is available as a W3C Recommendation and as an ISO - * Specification, - * - * If you just need to read a PNG file and don't want to read the documentation - * skip to the end of this file and read the section entitled 'simplified API'. - */ - -/* Version information for png.h - this should match the version in png.c */ -#define PNG_LIBPNG_VER_STRING "1.6.12" -#define PNG_HEADER_VERSION_STRING \ - " libpng version 1.6.12 - June 12, 2014\n" - -#define PNG_LIBPNG_VER_SONUM 16 -#define PNG_LIBPNG_VER_DLLNUM 16 - -/* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */ -#define PNG_LIBPNG_VER_MAJOR 1 -#define PNG_LIBPNG_VER_MINOR 6 -#define PNG_LIBPNG_VER_RELEASE 12 - -/* This should match the numeric part of the final component of - * PNG_LIBPNG_VER_STRING, omitting any leading zero: - */ - -#define PNG_LIBPNG_VER_BUILD 0 - -/* Release Status */ -#define PNG_LIBPNG_BUILD_ALPHA 1 -#define PNG_LIBPNG_BUILD_BETA 2 -#define PNG_LIBPNG_BUILD_RC 3 -#define PNG_LIBPNG_BUILD_STABLE 4 -#define PNG_LIBPNG_BUILD_RELEASE_STATUS_MASK 7 - -/* Release-Specific Flags */ -#define PNG_LIBPNG_BUILD_PATCH 8 /* Can be OR'ed with - PNG_LIBPNG_BUILD_STABLE only */ -#define PNG_LIBPNG_BUILD_PRIVATE 16 /* Cannot be OR'ed with - PNG_LIBPNG_BUILD_SPECIAL */ -#define PNG_LIBPNG_BUILD_SPECIAL 32 /* Cannot be OR'ed with - PNG_LIBPNG_BUILD_PRIVATE */ - -#define PNG_LIBPNG_BUILD_BASE_TYPE PNG_LIBPNG_BUILD_STABLE - -/* Careful here. At one time, Guy wanted to use 082, but that would be octal. - * We must not include leading zeros. - * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only - * version 1.0.0 was mis-numbered 100 instead of 10000). From - * version 1.0.1 it's xxyyzz, where x=major, y=minor, z=release - */ -#define PNG_LIBPNG_VER 10612 /* 1.6.12 */ - -/* Library configuration: these options cannot be changed after - * the library has been built. - */ -#ifndef PNGLCONF_H - /* If pnglibconf.h is missing, you can - * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h - */ -# include "pnglibconf.h" -#endif - -#ifndef PNG_VERSION_INFO_ONLY - /* Machine specific configuration. */ -# include "pngconf.h" -#endif - -/* - * Added at libpng-1.2.8 - * - * Ref MSDN: Private as priority over Special - * VS_FF_PRIVATEBUILD File *was not* built using standard release - * procedures. If this value is given, the StringFileInfo block must - * contain a PrivateBuild string. - * - * VS_FF_SPECIALBUILD File *was* built by the original company using - * standard release procedures but is a variation of the standard - * file of the same version number. If this value is given, the - * StringFileInfo block must contain a SpecialBuild string. - */ - -#ifdef PNG_USER_PRIVATEBUILD /* From pnglibconf.h */ -# define PNG_LIBPNG_BUILD_TYPE \ - (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_PRIVATE) -#else -# ifdef PNG_LIBPNG_SPECIALBUILD -# define PNG_LIBPNG_BUILD_TYPE \ - (PNG_LIBPNG_BUILD_BASE_TYPE | PNG_LIBPNG_BUILD_SPECIAL) -# else -# define PNG_LIBPNG_BUILD_TYPE (PNG_LIBPNG_BUILD_BASE_TYPE) -# endif -#endif - -#ifndef PNG_VERSION_INFO_ONLY - -/* Inhibit C++ name-mangling for libpng functions but not for system calls. */ -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -/* Version information for C files, stored in png.c. This had better match - * the version above. - */ -#define png_libpng_ver png_get_header_ver(NULL) - -/* This file is arranged in several sections: - * - * 1. Any configuration options that can be specified by for the application - * code when it is built. (Build time configuration is in pnglibconf.h) - * 2. Type definitions (base types are defined in pngconf.h), structure - * definitions. - * 3. Exported library functions. - * 4. Simplified API. - * - * The library source code has additional files (principally pngpriv.h) that - * allow configuration of the library. - */ -/* Section 1: run time configuration - * See pnglibconf.h for build time configuration - * - * Run time configuration allows the application to choose between - * implementations of certain arithmetic APIs. The default is set - * at build time and recorded in pnglibconf.h, but it is safe to - * override these (and only these) settings. Note that this won't - * change what the library does, only application code, and the - * settings can (and probably should) be made on a per-file basis - * by setting the #defines before including png.h - * - * Use macros to read integers from PNG data or use the exported - * functions? - * PNG_USE_READ_MACROS: use the macros (see below) Note that - * the macros evaluate their argument multiple times. - * PNG_NO_USE_READ_MACROS: call the relevant library function. - * - * Use the alternative algorithm for compositing alpha samples that - * does not use division? - * PNG_READ_COMPOSITE_NODIV_SUPPORTED: use the 'no division' - * algorithm. - * PNG_NO_READ_COMPOSITE_NODIV: use the 'division' algorithm. - * - * How to handle benign errors if PNG_ALLOW_BENIGN_ERRORS is - * false? - * PNG_ALLOW_BENIGN_ERRORS: map calls to the benign error - * APIs to png_warning. - * Otherwise the calls are mapped to png_error. - */ - -/* Section 2: type definitions, including structures and compile time - * constants. - * See pngconf.h for base types that vary by machine/system - */ - -/* This triggers a compiler error in png.c, if png.c and png.h - * do not agree upon the version number. - */ -typedef char* png_libpng_version_1_6_12; - -/* Basic control structions. Read libpng-manual.txt or libpng.3 for more info. - * - * png_struct is the cache of information used while reading or writing a single - * PNG file. One of these is always required, although the simplified API - * (below) hides the creation and destruction of it. - */ -typedef struct png_struct_def png_struct; -typedef const png_struct * png_const_structp; -typedef png_struct * png_structp; -typedef png_struct * * png_structpp; - -/* png_info contains information read from or to be written to a PNG file. One - * or more of these must exist while reading or creating a PNG file. The - * information is not used by libpng during read but is used to control what - * gets written when a PNG file is created. "png_get_" function calls read - * information during read and "png_set_" functions calls write information - * when creating a PNG. - * been moved into a separate header file that is not accessible to - * applications. Read libpng-manual.txt or libpng.3 for more info. - */ -typedef struct png_info_def png_info; -typedef png_info * png_infop; -typedef const png_info * png_const_infop; -typedef png_info * * png_infopp; - -/* Types with names ending 'p' are pointer types. The corresponding types with - * names ending 'rp' are identical pointer types except that the pointer is - * marked 'restrict', which means that it is the only pointer to the object - * passed to the function. Applications should not use the 'restrict' types; - * it is always valid to pass 'p' to a pointer with a function argument of the - * corresponding 'rp' type. Different compilers have different rules with - * regard to type matching in the presence of 'restrict'. For backward - * compatibility libpng callbacks never have 'restrict' in their parameters and, - * consequentially, writing portable application code is extremely difficult if - * an attempt is made to use 'restrict'. - */ -typedef png_struct * PNG_RESTRICT png_structrp; -typedef const png_struct * PNG_RESTRICT png_const_structrp; -typedef png_info * PNG_RESTRICT png_inforp; -typedef const png_info * PNG_RESTRICT png_const_inforp; - -/* Three color definitions. The order of the red, green, and blue, (and the - * exact size) is not important, although the size of the fields need to - * be png_byte or png_uint_16 (as defined below). - */ -typedef struct png_color_struct -{ - png_byte red; - png_byte green; - png_byte blue; -} png_color; -typedef png_color * png_colorp; -typedef const png_color * png_const_colorp; -typedef png_color * * png_colorpp; - -typedef struct png_color_16_struct -{ - png_byte index; /* used for palette files */ - png_uint_16 red; /* for use in red green blue files */ - png_uint_16 green; - png_uint_16 blue; - png_uint_16 gray; /* for use in grayscale files */ -} png_color_16; -typedef png_color_16 * png_color_16p; -typedef const png_color_16 * png_const_color_16p; -typedef png_color_16 * * png_color_16pp; - -typedef struct png_color_8_struct -{ - png_byte red; /* for use in red green blue files */ - png_byte green; - png_byte blue; - png_byte gray; /* for use in grayscale files */ - png_byte alpha; /* for alpha channel files */ -} png_color_8; -typedef png_color_8 * png_color_8p; -typedef const png_color_8 * png_const_color_8p; -typedef png_color_8 * * png_color_8pp; - -/* - * The following two structures are used for the in-core representation - * of sPLT chunks. - */ -typedef struct png_sPLT_entry_struct -{ - png_uint_16 red; - png_uint_16 green; - png_uint_16 blue; - png_uint_16 alpha; - png_uint_16 frequency; -} png_sPLT_entry; -typedef png_sPLT_entry * png_sPLT_entryp; -typedef const png_sPLT_entry * png_const_sPLT_entryp; -typedef png_sPLT_entry * * png_sPLT_entrypp; - -/* When the depth of the sPLT palette is 8 bits, the color and alpha samples - * occupy the LSB of their respective members, and the MSB of each member - * is zero-filled. The frequency member always occupies the full 16 bits. - */ - -typedef struct png_sPLT_struct -{ - png_charp name; /* palette name */ - png_byte depth; /* depth of palette samples */ - png_sPLT_entryp entries; /* palette entries */ - png_int_32 nentries; /* number of palette entries */ -} png_sPLT_t; -typedef png_sPLT_t * png_sPLT_tp; -typedef const png_sPLT_t * png_const_sPLT_tp; -typedef png_sPLT_t * * png_sPLT_tpp; - -#ifdef PNG_TEXT_SUPPORTED -/* png_text holds the contents of a text/ztxt/itxt chunk in a PNG file, - * and whether that contents is compressed or not. The "key" field - * points to a regular zero-terminated C string. The "text" fields can be a - * regular C string, an empty string, or a NULL pointer. - * However, the structure returned by png_get_text() will always contain - * the "text" field as a regular zero-terminated C string (possibly - * empty), never a NULL pointer, so it can be safely used in printf() and - * other string-handling functions. Note that the "itxt_length", "lang", and - * "lang_key" members of the structure only exist when the library is built - * with iTXt chunk support. Prior to libpng-1.4.0 the library was built by - * default without iTXt support. Also note that when iTXt *is* supported, - * the "lang" and "lang_key" fields contain NULL pointers when the - * "compression" field contains * PNG_TEXT_COMPRESSION_NONE or - * PNG_TEXT_COMPRESSION_zTXt. Note that the "compression value" is not the - * same as what appears in the PNG tEXt/zTXt/iTXt chunk's "compression flag" - * which is always 0 or 1, or its "compression method" which is always 0. - */ -typedef struct png_text_struct -{ - int compression; /* compression value: - -1: tEXt, none - 0: zTXt, deflate - 1: iTXt, none - 2: iTXt, deflate */ - png_charp key; /* keyword, 1-79 character description of "text" */ - png_charp text; /* comment, may be an empty string (ie "") - or a NULL pointer */ - png_size_t text_length; /* length of the text string */ - png_size_t itxt_length; /* length of the itxt string */ - png_charp lang; /* language code, 0-79 characters - or a NULL pointer */ - png_charp lang_key; /* keyword translated UTF-8 string, 0 or more - chars or a NULL pointer */ -} png_text; -typedef png_text * png_textp; -typedef const png_text * png_const_textp; -typedef png_text * * png_textpp; -#endif - -/* Supported compression types for text in PNG files (tEXt, and zTXt). - * The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed. */ -#define PNG_TEXT_COMPRESSION_NONE_WR -3 -#define PNG_TEXT_COMPRESSION_zTXt_WR -2 -#define PNG_TEXT_COMPRESSION_NONE -1 -#define PNG_TEXT_COMPRESSION_zTXt 0 -#define PNG_ITXT_COMPRESSION_NONE 1 -#define PNG_ITXT_COMPRESSION_zTXt 2 -#define PNG_TEXT_COMPRESSION_LAST 3 /* Not a valid value */ - -/* png_time is a way to hold the time in an machine independent way. - * Two conversions are provided, both from time_t and struct tm. There - * is no portable way to convert to either of these structures, as far - * as I know. If you know of a portable way, send it to me. As a side - * note - PNG has always been Year 2000 compliant! - */ -typedef struct png_time_struct -{ - png_uint_16 year; /* full year, as in, 1995 */ - png_byte month; /* month of year, 1 - 12 */ - png_byte day; /* day of month, 1 - 31 */ - png_byte hour; /* hour of day, 0 - 23 */ - png_byte minute; /* minute of hour, 0 - 59 */ - png_byte second; /* second of minute, 0 - 60 (for leap seconds) */ -} png_time; -typedef png_time * png_timep; -typedef const png_time * png_const_timep; -typedef png_time * * png_timepp; - -#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) ||\ - defined(PNG_USER_CHUNKS_SUPPORTED) -/* png_unknown_chunk is a structure to hold queued chunks for which there is - * no specific support. The idea is that we can use this to queue - * up private chunks for output even though the library doesn't actually - * know about their semantics. - * - * The data in the structure is set by libpng on read and used on write. - */ -typedef struct png_unknown_chunk_t -{ - png_byte name[5]; /* Textual chunk name with '\0' terminator */ - png_byte *data; /* Data, should not be modified on read! */ - png_size_t size; - - /* On write 'location' must be set using the flag values listed below. - * Notice that on read it is set by libpng however the values stored have - * more bits set than are listed below. Always treat the value as a - * bitmask. On write set only one bit - setting multiple bits may cause the - * chunk to be written in multiple places. - */ - png_byte location; /* mode of operation at read time */ -} -png_unknown_chunk; - -typedef png_unknown_chunk * png_unknown_chunkp; -typedef const png_unknown_chunk * png_const_unknown_chunkp; -typedef png_unknown_chunk * * png_unknown_chunkpp; -#endif - -/* Flag values for the unknown chunk location byte. */ -#define PNG_HAVE_IHDR 0x01 -#define PNG_HAVE_PLTE 0x02 -#define PNG_AFTER_IDAT 0x08 - -/* Maximum positive integer used in PNG is (2^31)-1 */ -#define PNG_UINT_31_MAX ((png_uint_32)0x7fffffffL) -#define PNG_UINT_32_MAX ((png_uint_32)(-1)) -#define PNG_SIZE_MAX ((png_size_t)(-1)) - -/* These are constants for fixed point values encoded in the - * PNG specification manner (x100000) - */ -#define PNG_FP_1 100000 -#define PNG_FP_HALF 50000 -#define PNG_FP_MAX ((png_fixed_point)0x7fffffffL) -#define PNG_FP_MIN (-PNG_FP_MAX) - -/* These describe the color_type field in png_info. */ -/* color type masks */ -#define PNG_COLOR_MASK_PALETTE 1 -#define PNG_COLOR_MASK_COLOR 2 -#define PNG_COLOR_MASK_ALPHA 4 - -/* color types. Note that not all combinations are legal */ -#define PNG_COLOR_TYPE_GRAY 0 -#define PNG_COLOR_TYPE_PALETTE (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_PALETTE) -#define PNG_COLOR_TYPE_RGB (PNG_COLOR_MASK_COLOR) -#define PNG_COLOR_TYPE_RGB_ALPHA (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA) -#define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA) -/* aliases */ -#define PNG_COLOR_TYPE_RGBA PNG_COLOR_TYPE_RGB_ALPHA -#define PNG_COLOR_TYPE_GA PNG_COLOR_TYPE_GRAY_ALPHA - -/* This is for compression type. PNG 1.0-1.2 only define the single type. */ -#define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */ -#define PNG_COMPRESSION_TYPE_DEFAULT PNG_COMPRESSION_TYPE_BASE - -/* This is for filter type. PNG 1.0-1.2 only define the single type. */ -#define PNG_FILTER_TYPE_BASE 0 /* Single row per-byte filtering */ -#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */ -#define PNG_FILTER_TYPE_DEFAULT PNG_FILTER_TYPE_BASE - -/* These are for the interlacing type. These values should NOT be changed. */ -#define PNG_INTERLACE_NONE 0 /* Non-interlaced image */ -#define PNG_INTERLACE_ADAM7 1 /* Adam7 interlacing */ -#define PNG_INTERLACE_LAST 2 /* Not a valid value */ - -/* These are for the oFFs chunk. These values should NOT be changed. */ -#define PNG_OFFSET_PIXEL 0 /* Offset in pixels */ -#define PNG_OFFSET_MICROMETER 1 /* Offset in micrometers (1/10^6 meter) */ -#define PNG_OFFSET_LAST 2 /* Not a valid value */ - -/* These are for the pCAL chunk. These values should NOT be changed. */ -#define PNG_EQUATION_LINEAR 0 /* Linear transformation */ -#define PNG_EQUATION_BASE_E 1 /* Exponential base e transform */ -#define PNG_EQUATION_ARBITRARY 2 /* Arbitrary base exponential transform */ -#define PNG_EQUATION_HYPERBOLIC 3 /* Hyperbolic sine transformation */ -#define PNG_EQUATION_LAST 4 /* Not a valid value */ - -/* These are for the sCAL chunk. These values should NOT be changed. */ -#define PNG_SCALE_UNKNOWN 0 /* unknown unit (image scale) */ -#define PNG_SCALE_METER 1 /* meters per pixel */ -#define PNG_SCALE_RADIAN 2 /* radians per pixel */ -#define PNG_SCALE_LAST 3 /* Not a valid value */ - -/* These are for the pHYs chunk. These values should NOT be changed. */ -#define PNG_RESOLUTION_UNKNOWN 0 /* pixels/unknown unit (aspect ratio) */ -#define PNG_RESOLUTION_METER 1 /* pixels/meter */ -#define PNG_RESOLUTION_LAST 2 /* Not a valid value */ - -/* These are for the sRGB chunk. These values should NOT be changed. */ -#define PNG_sRGB_INTENT_PERCEPTUAL 0 -#define PNG_sRGB_INTENT_RELATIVE 1 -#define PNG_sRGB_INTENT_SATURATION 2 -#define PNG_sRGB_INTENT_ABSOLUTE 3 -#define PNG_sRGB_INTENT_LAST 4 /* Not a valid value */ - -/* This is for text chunks */ -#define PNG_KEYWORD_MAX_LENGTH 79 - -/* Maximum number of entries in PLTE/sPLT/tRNS arrays */ -#define PNG_MAX_PALETTE_LENGTH 256 - -/* These determine if an ancillary chunk's data has been successfully read - * from the PNG header, or if the application has filled in the corresponding - * data in the info_struct to be written into the output file. The values - * of the PNG_INFO_ defines should NOT be changed. - */ -#define PNG_INFO_gAMA 0x0001 -#define PNG_INFO_sBIT 0x0002 -#define PNG_INFO_cHRM 0x0004 -#define PNG_INFO_PLTE 0x0008 -#define PNG_INFO_tRNS 0x0010 -#define PNG_INFO_bKGD 0x0020 -#define PNG_INFO_hIST 0x0040 -#define PNG_INFO_pHYs 0x0080 -#define PNG_INFO_oFFs 0x0100 -#define PNG_INFO_tIME 0x0200 -#define PNG_INFO_pCAL 0x0400 -#define PNG_INFO_sRGB 0x0800 /* GR-P, 0.96a */ -#define PNG_INFO_iCCP 0x1000 /* ESR, 1.0.6 */ -#define PNG_INFO_sPLT 0x2000 /* ESR, 1.0.6 */ -#define PNG_INFO_sCAL 0x4000 /* ESR, 1.0.6 */ -#define PNG_INFO_IDAT 0x8000 /* ESR, 1.0.6 */ - -/* This is used for the transformation routines, as some of them - * change these values for the row. It also should enable using - * the routines for other purposes. - */ -typedef struct png_row_info_struct -{ - png_uint_32 width; /* width of row */ - png_size_t rowbytes; /* number of bytes in row */ - png_byte color_type; /* color type of row */ - png_byte bit_depth; /* bit depth of row */ - png_byte channels; /* number of channels (1, 2, 3, or 4) */ - png_byte pixel_depth; /* bits per pixel (depth * channels) */ -} png_row_info; - -typedef png_row_info * png_row_infop; -typedef png_row_info * * png_row_infopp; - -/* These are the function types for the I/O functions and for the functions - * that allow the user to override the default I/O functions with his or her - * own. The png_error_ptr type should match that of user-supplied warning - * and error functions, while the png_rw_ptr type should match that of the - * user read/write data functions. Note that the 'write' function must not - * modify the buffer it is passed. The 'read' function, on the other hand, is - * expected to return the read data in the buffer. - */ -typedef PNG_CALLBACK(void, *png_error_ptr, (png_structp, png_const_charp)); -typedef PNG_CALLBACK(void, *png_rw_ptr, (png_structp, png_bytep, png_size_t)); -typedef PNG_CALLBACK(void, *png_flush_ptr, (png_structp)); -typedef PNG_CALLBACK(void, *png_read_status_ptr, (png_structp, png_uint_32, - int)); -typedef PNG_CALLBACK(void, *png_write_status_ptr, (png_structp, png_uint_32, - int)); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -typedef PNG_CALLBACK(void, *png_progressive_info_ptr, (png_structp, png_infop)); -typedef PNG_CALLBACK(void, *png_progressive_end_ptr, (png_structp, png_infop)); - -/* The following callback receives png_uint_32 row_number, int pass for the - * png_bytep data of the row. When transforming an interlaced image the - * row number is the row number within the sub-image of the interlace pass, so - * the value will increase to the height of the sub-image (not the full image) - * then reset to 0 for the next pass. - * - * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to - * find the output pixel (x,y) given an interlaced sub-image pixel - * (row,col,pass). (See below for these macros.) - */ -typedef PNG_CALLBACK(void, *png_progressive_row_ptr, (png_structp, png_bytep, - png_uint_32, int)); -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -typedef PNG_CALLBACK(void, *png_user_transform_ptr, (png_structp, png_row_infop, - png_bytep)); -#endif - -#ifdef PNG_USER_CHUNKS_SUPPORTED -typedef PNG_CALLBACK(int, *png_user_chunk_ptr, (png_structp, - png_unknown_chunkp)); -#endif -#ifdef PNG_UNKNOWN_CHUNKS_SUPPORTED -/* not used anywhere */ -/* typedef PNG_CALLBACK(void, *png_unknown_chunk_ptr, (png_structp)); */ -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* This must match the function definition in , and the application - * must include this before png.h to obtain the definition of jmp_buf. The - * function is required to be PNG_NORETURN, but this is not checked. If the - * function does return the application will crash via an abort() or similar - * system level call. - * - * If you get a warning here while building the library you may need to make - * changes to ensure that pnglibconf.h records the calling convention used by - * your compiler. This may be very difficult - try using a different compiler - * to build the library! - */ -PNG_FUNCTION(void, (PNGCAPI *png_longjmp_ptr), PNGARG((jmp_buf, int)), typedef); -#endif - -/* Transform masks for the high-level interface */ -#define PNG_TRANSFORM_IDENTITY 0x0000 /* read and write */ -#define PNG_TRANSFORM_STRIP_16 0x0001 /* read only */ -#define PNG_TRANSFORM_STRIP_ALPHA 0x0002 /* read only */ -#define PNG_TRANSFORM_PACKING 0x0004 /* read and write */ -#define PNG_TRANSFORM_PACKSWAP 0x0008 /* read and write */ -#define PNG_TRANSFORM_EXPAND 0x0010 /* read only */ -#define PNG_TRANSFORM_INVERT_MONO 0x0020 /* read and write */ -#define PNG_TRANSFORM_SHIFT 0x0040 /* read and write */ -#define PNG_TRANSFORM_BGR 0x0080 /* read and write */ -#define PNG_TRANSFORM_SWAP_ALPHA 0x0100 /* read and write */ -#define PNG_TRANSFORM_SWAP_ENDIAN 0x0200 /* read and write */ -#define PNG_TRANSFORM_INVERT_ALPHA 0x0400 /* read and write */ -#define PNG_TRANSFORM_STRIP_FILLER 0x0800 /* write only */ -/* Added to libpng-1.2.34 */ -#define PNG_TRANSFORM_STRIP_FILLER_BEFORE PNG_TRANSFORM_STRIP_FILLER -#define PNG_TRANSFORM_STRIP_FILLER_AFTER 0x1000 /* write only */ -/* Added to libpng-1.4.0 */ -#define PNG_TRANSFORM_GRAY_TO_RGB 0x2000 /* read only */ -/* Added to libpng-1.5.4 */ -#define PNG_TRANSFORM_EXPAND_16 0x4000 /* read only */ -#define PNG_TRANSFORM_SCALE_16 0x8000 /* read only */ - -/* Flags for MNG supported features */ -#define PNG_FLAG_MNG_EMPTY_PLTE 0x01 -#define PNG_FLAG_MNG_FILTER_64 0x04 -#define PNG_ALL_MNG_FEATURES 0x05 - -/* NOTE: prior to 1.5 these functions had no 'API' style declaration, - * this allowed the zlib default functions to be used on Windows - * platforms. In 1.5 the zlib default malloc (which just calls malloc and - * ignores the first argument) should be completely compatible with the - * following. - */ -typedef PNG_CALLBACK(png_voidp, *png_malloc_ptr, (png_structp, - png_alloc_size_t)); -typedef PNG_CALLBACK(void, *png_free_ptr, (png_structp, png_voidp)); - -/* Section 3: exported functions - * Here are the function definitions most commonly used. This is not - * the place to find out how to use libpng. See libpng-manual.txt for the - * full explanation, see example.c for the summary. This just provides - * a simple one line description of the use of each function. - * - * The PNG_EXPORT() and PNG_EXPORTA() macros used below are defined in - * pngconf.h and in the *.dfn files in the scripts directory. - * - * PNG_EXPORT(ordinal, type, name, (args)); - * - * ordinal: ordinal that is used while building - * *.def files. The ordinal value is only - * relevant when preprocessing png.h with - * the *.dfn files for building symbol table - * entries, and are removed by pngconf.h. - * type: return type of the function - * name: function name - * args: function arguments, with types - * - * When we wish to append attributes to a function prototype we use - * the PNG_EXPORTA() macro instead. - * - * PNG_EXPORTA(ordinal, type, name, (args), attributes); - * - * ordinal, type, name, and args: same as in PNG_EXPORT(). - * attributes: function attributes - */ - -/* Returns the version number of the library */ -PNG_EXPORT(1, png_uint_32, png_access_version_number, (void)); - -/* Tell lib we have already handled the first magic bytes. - * Handling more than 8 bytes from the beginning of the file is an error. - */ -PNG_EXPORT(2, void, png_set_sig_bytes, (png_structrp png_ptr, int num_bytes)); - -/* Check sig[start] through sig[start + num_to_check - 1] to see if it's a - * PNG file. Returns zero if the supplied bytes match the 8-byte PNG - * signature, and non-zero otherwise. Having num_to_check == 0 or - * start > 7 will always fail (ie return non-zero). - */ -PNG_EXPORT(3, int, png_sig_cmp, (png_const_bytep sig, png_size_t start, - png_size_t num_to_check)); - -/* Simple signature checking function. This is the same as calling - * png_check_sig(sig, n) := !png_sig_cmp(sig, 0, n). - */ -#define png_check_sig(sig, n) !png_sig_cmp((sig), 0, (n)) - -/* Allocate and initialize png_ptr struct for reading, and any other memory. */ -PNG_EXPORTA(4, png_structp, png_create_read_struct, - (png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn), - PNG_ALLOCATED); - -/* Allocate and initialize png_ptr struct for writing, and any other memory */ -PNG_EXPORTA(5, png_structp, png_create_write_struct, - (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warn_fn), - PNG_ALLOCATED); - -PNG_EXPORT(6, png_size_t, png_get_compression_buffer_size, - (png_const_structrp png_ptr)); - -PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structrp png_ptr, - png_size_t size)); - -/* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp - * match up. - */ -#ifdef PNG_SETJMP_SUPPORTED -/* This function returns the jmp_buf built in to *png_ptr. It must be - * supplied with an appropriate 'longjmp' function to use on that jmp_buf - * unless the default error function is overridden in which case NULL is - * acceptable. The size of the jmp_buf is checked against the actual size - * allocated by the library - the call will return NULL on a mismatch - * indicating an ABI mismatch. - */ -PNG_EXPORT(8, jmp_buf*, png_set_longjmp_fn, (png_structrp png_ptr, - png_longjmp_ptr longjmp_fn, size_t jmp_buf_size)); -# define png_jmpbuf(png_ptr) \ - (*png_set_longjmp_fn((png_ptr), longjmp, (sizeof (jmp_buf)))) -#else -# define png_jmpbuf(png_ptr) \ - (LIBPNG_WAS_COMPILED_WITH__PNG_NO_SETJMP) -#endif -/* This function should be used by libpng applications in place of - * longjmp(png_ptr->jmpbuf, val). If longjmp_fn() has been set, it - * will use it; otherwise it will call PNG_ABORT(). This function was - * added in libpng-1.5.0. - */ -PNG_EXPORTA(9, void, png_longjmp, (png_const_structrp png_ptr, int val), - PNG_NORETURN); - -#ifdef PNG_READ_SUPPORTED -/* Reset the compression stream */ -PNG_EXPORTA(10, int, png_reset_zstream, (png_structrp png_ptr), PNG_DEPRECATED); -#endif - -/* New functions added in libpng-1.0.2 (not enabled by default until 1.2.0) */ -#ifdef PNG_USER_MEM_SUPPORTED -PNG_EXPORTA(11, png_structp, png_create_read_struct_2, - (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warn_fn, - png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), - PNG_ALLOCATED); -PNG_EXPORTA(12, png_structp, png_create_write_struct_2, - (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warn_fn, - png_voidp mem_ptr, png_malloc_ptr malloc_fn, png_free_ptr free_fn), - PNG_ALLOCATED); -#endif - -/* Write the PNG file signature. */ -PNG_EXPORT(13, void, png_write_sig, (png_structrp png_ptr)); - -/* Write a PNG chunk - size, type, (optional) data, CRC. */ -PNG_EXPORT(14, void, png_write_chunk, (png_structrp png_ptr, png_const_bytep - chunk_name, png_const_bytep data, png_size_t length)); - -/* Write the start of a PNG chunk - length and chunk name. */ -PNG_EXPORT(15, void, png_write_chunk_start, (png_structrp png_ptr, - png_const_bytep chunk_name, png_uint_32 length)); - -/* Write the data of a PNG chunk started with png_write_chunk_start(). */ -PNG_EXPORT(16, void, png_write_chunk_data, (png_structrp png_ptr, - png_const_bytep data, png_size_t length)); - -/* Finish a chunk started with png_write_chunk_start() (includes CRC). */ -PNG_EXPORT(17, void, png_write_chunk_end, (png_structrp png_ptr)); - -/* Allocate and initialize the info structure */ -PNG_EXPORTA(18, png_infop, png_create_info_struct, (png_const_structrp png_ptr), - PNG_ALLOCATED); - -/* DEPRECATED: this function allowed init structures to be created using the - * default allocation method (typically malloc). Use is deprecated in 1.6.0 and - * the API will be removed in the future. - */ -PNG_EXPORTA(19, void, png_info_init_3, (png_infopp info_ptr, - png_size_t png_info_struct_size), PNG_DEPRECATED); - -/* Writes all the PNG information before the image. */ -PNG_EXPORT(20, void, png_write_info_before_PLTE, - (png_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(21, void, png_write_info, - (png_structrp png_ptr, png_const_inforp info_ptr)); - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the information before the actual image data. */ -PNG_EXPORT(22, void, png_read_info, - (png_structrp png_ptr, png_inforp info_ptr)); -#endif - -#ifdef PNG_TIME_RFC1123_SUPPORTED - /* Convert to a US string format: there is no localization support in this - * routine. The original implementation used a 29 character buffer in - * png_struct, this will be removed in future versions. - */ -#if PNG_LIBPNG_VER < 10700 -/* To do: remove this from libpng17 (and from libpng17/png.c and pngstruct.h) */ -PNG_EXPORTA(23, png_const_charp, png_convert_to_rfc1123, (png_structrp png_ptr, - png_const_timep ptime),PNG_DEPRECATED); -#endif -PNG_EXPORT(241, int, png_convert_to_rfc1123_buffer, (char out[29], - png_const_timep ptime)); -#endif - -#ifdef PNG_CONVERT_tIME_SUPPORTED -/* Convert from a struct tm to png_time */ -PNG_EXPORT(24, void, png_convert_from_struct_tm, (png_timep ptime, - const struct tm * ttime)); - -/* Convert from time_t to png_time. Uses gmtime() */ -PNG_EXPORT(25, void, png_convert_from_time_t, (png_timep ptime, time_t ttime)); -#endif /* PNG_CONVERT_tIME_SUPPORTED */ - -#ifdef PNG_READ_EXPAND_SUPPORTED -/* Expand data to 24-bit RGB, or 8-bit grayscale, with alpha if available. */ -PNG_EXPORT(26, void, png_set_expand, (png_structrp png_ptr)); -PNG_EXPORT(27, void, png_set_expand_gray_1_2_4_to_8, (png_structrp png_ptr)); -PNG_EXPORT(28, void, png_set_palette_to_rgb, (png_structrp png_ptr)); -PNG_EXPORT(29, void, png_set_tRNS_to_alpha, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_EXPAND_16_SUPPORTED -/* Expand to 16-bit channels, forces conversion of palette to RGB and expansion - * of a tRNS chunk if present. - */ -PNG_EXPORT(221, void, png_set_expand_16, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* Use blue, green, red order for pixels. */ -PNG_EXPORT(30, void, png_set_bgr, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED -/* Expand the grayscale to 24-bit RGB if necessary. */ -PNG_EXPORT(31, void, png_set_gray_to_rgb, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -/* Reduce RGB to grayscale. */ -#define PNG_ERROR_ACTION_NONE 1 -#define PNG_ERROR_ACTION_WARN 2 -#define PNG_ERROR_ACTION_ERROR 3 -#define PNG_RGB_TO_GRAY_DEFAULT (-1)/*for red/green coefficients*/ - -PNG_FP_EXPORT(32, void, png_set_rgb_to_gray, (png_structrp png_ptr, - int error_action, double red, double green)) -PNG_FIXED_EXPORT(33, void, png_set_rgb_to_gray_fixed, (png_structrp png_ptr, - int error_action, png_fixed_point red, png_fixed_point green)) - -PNG_EXPORT(34, png_byte, png_get_rgb_to_gray_status, (png_const_structrp - png_ptr)); -#endif - -#ifdef PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED -PNG_EXPORT(35, void, png_build_grayscale_palette, (int bit_depth, - png_colorp palette)); -#endif - -#ifdef PNG_READ_ALPHA_MODE_SUPPORTED -/* How the alpha channel is interpreted - this affects how the color channels - * of a PNG file are returned to the calling application when an alpha channel, - * or a tRNS chunk in a palette file, is present. - * - * This has no effect on the way pixels are written into a PNG output - * datastream. The color samples in a PNG datastream are never premultiplied - * with the alpha samples. - * - * The default is to return data according to the PNG specification: the alpha - * channel is a linear measure of the contribution of the pixel to the - * corresponding composited pixel, and the color channels are unassociated - * (not premultiplied). The gamma encoded color channels must be scaled - * according to the contribution and to do this it is necessary to undo - * the encoding, scale the color values, perform the composition and reencode - * the values. This is the 'PNG' mode. - * - * The alternative is to 'associate' the alpha with the color information by - * storing color channel values that have been scaled by the alpha. - * image. These are the 'STANDARD', 'ASSOCIATED' or 'PREMULTIPLIED' modes - * (the latter being the two common names for associated alpha color channels). - * - * For the 'OPTIMIZED' mode, a pixel is treated as opaque only if the alpha - * value is equal to the maximum value. - * - * The final choice is to gamma encode the alpha channel as well. This is - * broken because, in practice, no implementation that uses this choice - * correctly undoes the encoding before handling alpha composition. Use this - * choice only if other serious errors in the software or hardware you use - * mandate it; the typical serious error is for dark halos to appear around - * opaque areas of the composited PNG image because of arithmetic overflow. - * - * The API function png_set_alpha_mode specifies which of these choices to use - * with an enumerated 'mode' value and the gamma of the required output: - */ -#define PNG_ALPHA_PNG 0 /* according to the PNG standard */ -#define PNG_ALPHA_STANDARD 1 /* according to Porter/Duff */ -#define PNG_ALPHA_ASSOCIATED 1 /* as above; this is the normal practice */ -#define PNG_ALPHA_PREMULTIPLIED 1 /* as above */ -#define PNG_ALPHA_OPTIMIZED 2 /* 'PNG' for opaque pixels, else 'STANDARD' */ -#define PNG_ALPHA_BROKEN 3 /* the alpha channel is gamma encoded */ - -PNG_FP_EXPORT(227, void, png_set_alpha_mode, (png_structrp png_ptr, int mode, - double output_gamma)) -PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structrp png_ptr, - int mode, png_fixed_point output_gamma)) -#endif - -#if defined(PNG_GAMMA_SUPPORTED) || defined(PNG_READ_ALPHA_MODE_SUPPORTED) -/* The output_gamma value is a screen gamma in libpng terminology: it expresses - * how to decode the output values, not how they are encoded. - */ -#define PNG_DEFAULT_sRGB -1 /* sRGB gamma and color space */ -#define PNG_GAMMA_MAC_18 -2 /* Old Mac '1.8' gamma and color space */ -#define PNG_GAMMA_sRGB 220000 /* Television standards--matches sRGB gamma */ -#define PNG_GAMMA_LINEAR PNG_FP_1 /* Linear */ -#endif - -/* The following are examples of calls to png_set_alpha_mode to achieve the - * required overall gamma correction and, where necessary, alpha - * premultiplication. - * - * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - * This is the default libpng handling of the alpha channel - it is not - * pre-multiplied into the color components. In addition the call states - * that the output is for a sRGB system and causes all PNG files without gAMA - * chunks to be assumed to be encoded using sRGB. - * - * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - * In this case the output is assumed to be something like an sRGB conformant - * display preceeded by a power-law lookup table of power 1.45. This is how - * early Mac systems behaved. - * - * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_GAMMA_LINEAR); - * This is the classic Jim Blinn approach and will work in academic - * environments where everything is done by the book. It has the shortcoming - * of assuming that input PNG data with no gamma information is linear - this - * is unlikely to be correct unless the PNG files where generated locally. - * Most of the time the output precision will be so low as to show - * significant banding in dark areas of the image. - * - * png_set_expand_16(pp); - * png_set_alpha_mode(pp, PNG_ALPHA_STANDARD, PNG_DEFAULT_sRGB); - * This is a somewhat more realistic Jim Blinn inspired approach. PNG files - * are assumed to have the sRGB encoding if not marked with a gamma value and - * the output is always 16 bits per component. This permits accurate scaling - * and processing of the data. If you know that your input PNG files were - * generated locally you might need to replace PNG_DEFAULT_sRGB with the - * correct value for your system. - * - * png_set_alpha_mode(pp, PNG_ALPHA_OPTIMIZED, PNG_DEFAULT_sRGB); - * If you just need to composite the PNG image onto an existing background - * and if you control the code that does this you can use the optimization - * setting. In this case you just copy completely opaque pixels to the - * output. For pixels that are not completely transparent (you just skip - * those) you do the composition math using png_composite or png_composite_16 - * below then encode the resultant 8-bit or 16-bit values to match the output - * encoding. - * - * Other cases - * If neither the PNG nor the standard linear encoding work for you because - * of the software or hardware you use then you have a big problem. The PNG - * case will probably result in halos around the image. The linear encoding - * will probably result in a washed out, too bright, image (it's actually too - * contrasty.) Try the ALPHA_OPTIMIZED mode above - this will probably - * substantially reduce the halos. Alternatively try: - * - * png_set_alpha_mode(pp, PNG_ALPHA_BROKEN, PNG_DEFAULT_sRGB); - * This option will also reduce the halos, but there will be slight dark - * halos round the opaque parts of the image where the background is light. - * In the OPTIMIZED mode the halos will be light halos where the background - * is dark. Take your pick - the halos are unavoidable unless you can get - * your hardware/software fixed! (The OPTIMIZED approach is slightly - * faster.) - * - * When the default gamma of PNG files doesn't match the output gamma. - * If you have PNG files with no gamma information png_set_alpha_mode allows - * you to provide a default gamma, but it also sets the ouput gamma to the - * matching value. If you know your PNG files have a gamma that doesn't - * match the output you can take advantage of the fact that - * png_set_alpha_mode always sets the output gamma but only sets the PNG - * default if it is not already set: - * - * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_DEFAULT_sRGB); - * png_set_alpha_mode(pp, PNG_ALPHA_PNG, PNG_GAMMA_MAC); - * The first call sets both the default and the output gamma values, the - * second call overrides the output gamma without changing the default. This - * is easier than achieving the same effect with png_set_gamma. You must use - * PNG_ALPHA_PNG for the first call - internal checking in png_set_alpha will - * fire if more than one call to png_set_alpha_mode and png_set_background is - * made in the same read operation, however multiple calls with PNG_ALPHA_PNG - * are ignored. - */ - -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED -PNG_EXPORT(36, void, png_set_strip_alpha, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -PNG_EXPORT(37, void, png_set_swap_alpha, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -PNG_EXPORT(38, void, png_set_invert_alpha, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte to 8-bit Gray or 24-bit RGB images. */ -PNG_EXPORT(39, void, png_set_filler, (png_structrp png_ptr, png_uint_32 filler, - int flags)); -/* The values of the PNG_FILLER_ defines should NOT be changed */ -# define PNG_FILLER_BEFORE 0 -# define PNG_FILLER_AFTER 1 -/* Add an alpha byte to 8-bit Gray or 24-bit RGB images. */ -PNG_EXPORT(40, void, png_set_add_alpha, (png_structrp png_ptr, - png_uint_32 filler, int flags)); -#endif /* PNG_READ_FILLER_SUPPORTED || PNG_WRITE_FILLER_SUPPORTED */ - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* Swap bytes in 16-bit depth files. */ -PNG_EXPORT(41, void, png_set_swap, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* Use 1 byte per pixel in 1, 2, or 4-bit depth files. */ -PNG_EXPORT(42, void, png_set_packing, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \ - defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* Swap packing order of pixels in bytes. */ -PNG_EXPORT(43, void, png_set_packswap, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -/* Converts files to legal bit depths. */ -PNG_EXPORT(44, void, png_set_shift, (png_structrp png_ptr, png_const_color_8p - true_bits)); -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -/* Have the code handle the interlacing. Returns the number of passes. - * MUST be called before png_read_update_info or png_start_read_image, - * otherwise it will not have the desired effect. Note that it is still - * necessary to call png_read_row or png_read_rows png_get_image_height - * times for each pass. -*/ -PNG_EXPORT(45, int, png_set_interlace_handling, (png_structrp png_ptr)); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -/* Invert monochrome files */ -PNG_EXPORT(46, void, png_set_invert_mono, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_BACKGROUND_SUPPORTED -/* Handle alpha and tRNS by replacing with a background color. Prior to - * libpng-1.5.4 this API must not be called before the PNG file header has been - * read. Doing so will result in unexpected behavior and possible warnings or - * errors if the PNG file contains a bKGD chunk. - */ -PNG_FP_EXPORT(47, void, png_set_background, (png_structrp png_ptr, - png_const_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma)) -PNG_FIXED_EXPORT(215, void, png_set_background_fixed, (png_structrp png_ptr, - png_const_color_16p background_color, int background_gamma_code, - int need_expand, png_fixed_point background_gamma)) -#endif -#ifdef PNG_READ_BACKGROUND_SUPPORTED -# define PNG_BACKGROUND_GAMMA_UNKNOWN 0 -# define PNG_BACKGROUND_GAMMA_SCREEN 1 -# define PNG_BACKGROUND_GAMMA_FILE 2 -# define PNG_BACKGROUND_GAMMA_UNIQUE 3 -#endif - -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED -/* Scale a 16-bit depth file down to 8-bit, accurately. */ -PNG_EXPORT(229, void, png_set_scale_16, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED -#define PNG_READ_16_TO_8 SUPPORTED /* Name prior to 1.5.4 */ -/* Strip the second byte of information from a 16-bit depth file. */ -PNG_EXPORT(48, void, png_set_strip_16, (png_structrp png_ptr)); -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED -/* Turn on quantizing, and reduce the palette to the number of colors - * available. - */ -PNG_EXPORT(49, void, png_set_quantize, (png_structrp png_ptr, - png_colorp palette, int num_palette, int maximum_colors, - png_const_uint_16p histogram, int full_quantize)); -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED -/* The threshold on gamma processing is configurable but hard-wired into the - * library. The following is the floating point variant. - */ -#define PNG_GAMMA_THRESHOLD (PNG_GAMMA_THRESHOLD_FIXED*.00001) - -/* Handle gamma correction. Screen_gamma=(display_exponent). - * NOTE: this API simply sets the screen and file gamma values. It will - * therefore override the value for gamma in a PNG file if it is called after - * the file header has been read - use with care - call before reading the PNG - * file for best results! - * - * These routines accept the same gamma values as png_set_alpha_mode (described - * above). The PNG_GAMMA_ defines and PNG_DEFAULT_sRGB can be passed to either - * API (floating point or fixed.) Notice, however, that the 'file_gamma' value - * is the inverse of a 'screen gamma' value. - */ -PNG_FP_EXPORT(50, void, png_set_gamma, (png_structrp png_ptr, - double screen_gamma, double override_file_gamma)) -PNG_FIXED_EXPORT(208, void, png_set_gamma_fixed, (png_structrp png_ptr, - png_fixed_point screen_gamma, png_fixed_point override_file_gamma)) -#endif - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -/* Set how many lines between output flushes - 0 for no flushing */ -PNG_EXPORT(51, void, png_set_flush, (png_structrp png_ptr, int nrows)); -/* Flush the current PNG output buffer */ -PNG_EXPORT(52, void, png_write_flush, (png_structrp png_ptr)); -#endif - -/* Optional update palette with requested transformations */ -PNG_EXPORT(53, void, png_start_read_image, (png_structrp png_ptr)); - -/* Optional call to update the users info structure */ -PNG_EXPORT(54, void, png_read_update_info, (png_structrp png_ptr, - png_inforp info_ptr)); - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read one or more rows of image data. */ -PNG_EXPORT(55, void, png_read_rows, (png_structrp png_ptr, png_bytepp row, - png_bytepp display_row, png_uint_32 num_rows)); -#endif - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read a row of data. */ -PNG_EXPORT(56, void, png_read_row, (png_structrp png_ptr, png_bytep row, - png_bytep display_row)); -#endif - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the whole image into memory at once. */ -PNG_EXPORT(57, void, png_read_image, (png_structrp png_ptr, png_bytepp image)); -#endif - -/* Write a row of image data */ -PNG_EXPORT(58, void, png_write_row, (png_structrp png_ptr, - png_const_bytep row)); - -/* Write a few rows of image data: (*row) is not written; however, the type - * is declared as writeable to maintain compatibility with previous versions - * of libpng and to allow the 'display_row' array from read_rows to be passed - * unchanged to write_rows. - */ -PNG_EXPORT(59, void, png_write_rows, (png_structrp png_ptr, png_bytepp row, - png_uint_32 num_rows)); - -/* Write the image data */ -PNG_EXPORT(60, void, png_write_image, (png_structrp png_ptr, png_bytepp image)); - -/* Write the end of the PNG file. */ -PNG_EXPORT(61, void, png_write_end, (png_structrp png_ptr, - png_inforp info_ptr)); - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the end of the PNG file. */ -PNG_EXPORT(62, void, png_read_end, (png_structrp png_ptr, png_inforp info_ptr)); -#endif - -/* Free any memory associated with the png_info_struct */ -PNG_EXPORT(63, void, png_destroy_info_struct, (png_const_structrp png_ptr, - png_infopp info_ptr_ptr)); - -/* Free any memory associated with the png_struct and the png_info_structs */ -PNG_EXPORT(64, void, png_destroy_read_struct, (png_structpp png_ptr_ptr, - png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr)); - -/* Free any memory associated with the png_struct and the png_info_structs */ -PNG_EXPORT(65, void, png_destroy_write_struct, (png_structpp png_ptr_ptr, - png_infopp info_ptr_ptr)); - -/* Set the libpng method of handling chunk CRC errors */ -PNG_EXPORT(66, void, png_set_crc_action, (png_structrp png_ptr, int crit_action, - int ancil_action)); - -/* Values for png_set_crc_action() say how to handle CRC errors in - * ancillary and critical chunks, and whether to use the data contained - * therein. Note that it is impossible to "discard" data in a critical - * chunk. For versions prior to 0.90, the action was always error/quit, - * whereas in version 0.90 and later, the action for CRC errors in ancillary - * chunks is warn/discard. These values should NOT be changed. - * - * value action:critical action:ancillary - */ -#define PNG_CRC_DEFAULT 0 /* error/quit warn/discard data */ -#define PNG_CRC_ERROR_QUIT 1 /* error/quit error/quit */ -#define PNG_CRC_WARN_DISCARD 2 /* (INVALID) warn/discard data */ -#define PNG_CRC_WARN_USE 3 /* warn/use data warn/use data */ -#define PNG_CRC_QUIET_USE 4 /* quiet/use data quiet/use data */ -#define PNG_CRC_NO_CHANGE 5 /* use current value use current value */ - -/* These functions give the user control over the scan-line filtering in - * libpng and the compression methods used by zlib. These functions are - * mainly useful for testing, as the defaults should work with most users. - * Those users who are tight on memory or want faster performance at the - * expense of compression can modify them. See the compression library - * header file (zlib.h) for an explination of the compression functions. - */ - -/* Set the filtering method(s) used by libpng. Currently, the only valid - * value for "method" is 0. - */ -PNG_EXPORT(67, void, png_set_filter, (png_structrp png_ptr, int method, - int filters)); - -/* Flags for png_set_filter() to say which filters to use. The flags - * are chosen so that they don't conflict with real filter types - * below, in case they are supplied instead of the #defined constants. - * These values should NOT be changed. - */ -#define PNG_NO_FILTERS 0x00 -#define PNG_FILTER_NONE 0x08 -#define PNG_FILTER_SUB 0x10 -#define PNG_FILTER_UP 0x20 -#define PNG_FILTER_AVG 0x40 -#define PNG_FILTER_PAETH 0x80 -#define PNG_ALL_FILTERS (PNG_FILTER_NONE | PNG_FILTER_SUB | PNG_FILTER_UP | \ - PNG_FILTER_AVG | PNG_FILTER_PAETH) - -/* Filter values (not flags) - used in pngwrite.c, pngwutil.c for now. - * These defines should NOT be changed. - */ -#define PNG_FILTER_VALUE_NONE 0 -#define PNG_FILTER_VALUE_SUB 1 -#define PNG_FILTER_VALUE_UP 2 -#define PNG_FILTER_VALUE_AVG 3 -#define PNG_FILTER_VALUE_PAETH 4 -#define PNG_FILTER_VALUE_LAST 5 - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* EXPERIMENTAL */ -/* The "heuristic_method" is given by one of the PNG_FILTER_HEURISTIC_ - * defines, either the default (minimum-sum-of-absolute-differences), or - * the experimental method (weighted-minimum-sum-of-absolute-differences). - * - * Weights are factors >= 1.0, indicating how important it is to keep the - * filter type consistent between rows. Larger numbers mean the current - * filter is that many times as likely to be the same as the "num_weights" - * previous filters. This is cumulative for each previous row with a weight. - * There needs to be "num_weights" values in "filter_weights", or it can be - * NULL if the weights aren't being specified. Weights have no influence on - * the selection of the first row filter. Well chosen weights can (in theory) - * improve the compression for a given image. - * - * Costs are factors >= 1.0 indicating the relative decoding costs of a - * filter type. Higher costs indicate more decoding expense, and are - * therefore less likely to be selected over a filter with lower computational - * costs. There needs to be a value in "filter_costs" for each valid filter - * type (given by PNG_FILTER_VALUE_LAST), or it can be NULL if you aren't - * setting the costs. Costs try to improve the speed of decompression without - * unduly increasing the compressed image size. - * - * A negative weight or cost indicates the default value is to be used, and - * values in the range [0.0, 1.0) indicate the value is to remain unchanged. - * The default values for both weights and costs are currently 1.0, but may - * change if good general weighting/cost heuristics can be found. If both - * the weights and costs are set to 1.0, this degenerates the WEIGHTED method - * to the UNWEIGHTED method, but with added encoding time/computation. - */ -PNG_FP_EXPORT(68, void, png_set_filter_heuristics, (png_structrp png_ptr, - int heuristic_method, int num_weights, png_const_doublep filter_weights, - png_const_doublep filter_costs)) -PNG_FIXED_EXPORT(209, void, png_set_filter_heuristics_fixed, - (png_structrp png_ptr, int heuristic_method, int num_weights, - png_const_fixed_point_p filter_weights, - png_const_fixed_point_p filter_costs)) -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -/* Heuristic used for row filter selection. These defines should NOT be - * changed. - */ -#define PNG_FILTER_HEURISTIC_DEFAULT 0 /* Currently "UNWEIGHTED" */ -#define PNG_FILTER_HEURISTIC_UNWEIGHTED 1 /* Used by libpng < 0.95 */ -#define PNG_FILTER_HEURISTIC_WEIGHTED 2 /* Experimental feature */ -#define PNG_FILTER_HEURISTIC_LAST 3 /* Not a valid value */ - -#ifdef PNG_WRITE_SUPPORTED -/* Set the library compression level. Currently, valid values range from - * 0 - 9, corresponding directly to the zlib compression levels 0 - 9 - * (0 - no compression, 9 - "maximal" compression). Note that tests have - * shown that zlib compression levels 3-6 usually perform as well as level 9 - * for PNG images, and do considerably fewer caclulations. In the future, - * these values may not correspond directly to the zlib compression levels. - */ -PNG_EXPORT(69, void, png_set_compression_level, (png_structrp png_ptr, - int level)); - -PNG_EXPORT(70, void, png_set_compression_mem_level, (png_structrp png_ptr, - int mem_level)); - -PNG_EXPORT(71, void, png_set_compression_strategy, (png_structrp png_ptr, - int strategy)); - -/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a - * smaller value of window_bits if it can do so safely. - */ -PNG_EXPORT(72, void, png_set_compression_window_bits, (png_structrp png_ptr, - int window_bits)); - -PNG_EXPORT(73, void, png_set_compression_method, (png_structrp png_ptr, - int method)); -#endif - -#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED -/* Also set zlib parameters for compressing non-IDAT chunks */ -PNG_EXPORT(222, void, png_set_text_compression_level, (png_structrp png_ptr, - int level)); - -PNG_EXPORT(223, void, png_set_text_compression_mem_level, (png_structrp png_ptr, - int mem_level)); - -PNG_EXPORT(224, void, png_set_text_compression_strategy, (png_structrp png_ptr, - int strategy)); - -/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a - * smaller value of window_bits if it can do so safely. - */ -PNG_EXPORT(225, void, png_set_text_compression_window_bits, - (png_structrp png_ptr, int window_bits)); - -PNG_EXPORT(226, void, png_set_text_compression_method, (png_structrp png_ptr, - int method)); -#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */ - -/* These next functions are called for input/output, memory, and error - * handling. They are in the file pngrio.c, pngwio.c, and pngerror.c, - * and call standard C I/O routines such as fread(), fwrite(), and - * fprintf(). These functions can be made to use other I/O routines - * at run time for those applications that need to handle I/O in a - * different manner by calling png_set_???_fn(). See libpng-manual.txt for - * more information. - */ - -#ifdef PNG_STDIO_SUPPORTED -/* Initialize the input/output for the PNG file to the default functions. */ -PNG_EXPORT(74, void, png_init_io, (png_structrp png_ptr, png_FILE_p fp)); -#endif - -/* Replace the (error and abort), and warning functions with user - * supplied functions. If no messages are to be printed you must still - * write and use replacement functions. The replacement error_fn should - * still do a longjmp to the last setjmp location if you are using this - * method of error handling. If error_fn or warning_fn is NULL, the - * default function will be used. - */ - -PNG_EXPORT(75, void, png_set_error_fn, (png_structrp png_ptr, - png_voidp error_ptr, png_error_ptr error_fn, png_error_ptr warning_fn)); - -/* Return the user pointer associated with the error functions */ -PNG_EXPORT(76, png_voidp, png_get_error_ptr, (png_const_structrp png_ptr)); - -/* Replace the default data output functions with a user supplied one(s). - * If buffered output is not used, then output_flush_fn can be set to NULL. - * If PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile time - * output_flush_fn will be ignored (and thus can be NULL). - * It is probably a mistake to use NULL for output_flush_fn if - * write_data_fn is not also NULL unless you have built libpng with - * PNG_WRITE_FLUSH_SUPPORTED undefined, because in this case libpng's - * default flush function, which uses the standard *FILE structure, will - * be used. - */ -PNG_EXPORT(77, void, png_set_write_fn, (png_structrp png_ptr, png_voidp io_ptr, - png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)); - -/* Replace the default data input function with a user supplied one. */ -PNG_EXPORT(78, void, png_set_read_fn, (png_structrp png_ptr, png_voidp io_ptr, - png_rw_ptr read_data_fn)); - -/* Return the user pointer associated with the I/O functions */ -PNG_EXPORT(79, png_voidp, png_get_io_ptr, (png_const_structrp png_ptr)); - -PNG_EXPORT(80, void, png_set_read_status_fn, (png_structrp png_ptr, - png_read_status_ptr read_row_fn)); - -PNG_EXPORT(81, void, png_set_write_status_fn, (png_structrp png_ptr, - png_write_status_ptr write_row_fn)); - -#ifdef PNG_USER_MEM_SUPPORTED -/* Replace the default memory allocation functions with user supplied one(s). */ -PNG_EXPORT(82, void, png_set_mem_fn, (png_structrp png_ptr, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn)); -/* Return the user pointer associated with the memory functions */ -PNG_EXPORT(83, png_voidp, png_get_mem_ptr, (png_const_structrp png_ptr)); -#endif - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED -PNG_EXPORT(84, void, png_set_read_user_transform_fn, (png_structrp png_ptr, - png_user_transform_ptr read_user_transform_fn)); -#endif - -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED -PNG_EXPORT(85, void, png_set_write_user_transform_fn, (png_structrp png_ptr, - png_user_transform_ptr write_user_transform_fn)); -#endif - -#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED -PNG_EXPORT(86, void, png_set_user_transform_info, (png_structrp png_ptr, - png_voidp user_transform_ptr, int user_transform_depth, - int user_transform_channels)); -/* Return the user pointer associated with the user transform functions */ -PNG_EXPORT(87, png_voidp, png_get_user_transform_ptr, - (png_const_structrp png_ptr)); -#endif - -#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED -/* Return information about the row currently being processed. Note that these - * APIs do not fail but will return unexpected results if called outside a user - * transform callback. Also note that when transforming an interlaced image the - * row number is the row number within the sub-image of the interlace pass, so - * the value will increase to the height of the sub-image (not the full image) - * then reset to 0 for the next pass. - * - * Use PNG_ROW_FROM_PASS_ROW(row, pass) and PNG_COL_FROM_PASS_COL(col, pass) to - * find the output pixel (x,y) given an interlaced sub-image pixel - * (row,col,pass). (See below for these macros.) - */ -PNG_EXPORT(217, png_uint_32, png_get_current_row_number, (png_const_structrp)); -PNG_EXPORT(218, png_byte, png_get_current_pass_number, (png_const_structrp)); -#endif - -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED -/* This callback is called only for *unknown* chunks. If - * PNG_HANDLE_AS_UNKNOWN_SUPPORTED is set then it is possible to set known - * chunks to be treated as unknown, however in this case the callback must do - * any processing required by the chunk (e.g. by calling the appropriate - * png_set_ APIs.) - * - * There is no write support - on write, by default, all the chunks in the - * 'unknown' list are written in the specified position. - * - * The integer return from the callback function is interpreted thus: - * - * negative: An error occured, png_chunk_error will be called. - * zero: The chunk was not handled, the chunk will be saved. A critical - * chunk will cause an error at this point unless it is to be saved. - * positive: The chunk was handled, libpng will ignore/discard it. - * - * See "INTERACTION WTIH USER CHUNK CALLBACKS" below for important notes about - * how this behavior will change in libpng 1.7 - */ -PNG_EXPORT(88, void, png_set_read_user_chunk_fn, (png_structrp png_ptr, - png_voidp user_chunk_ptr, png_user_chunk_ptr read_user_chunk_fn)); -#endif - -#ifdef PNG_USER_CHUNKS_SUPPORTED -PNG_EXPORT(89, png_voidp, png_get_user_chunk_ptr, (png_const_structrp png_ptr)); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -/* Sets the function callbacks for the push reader, and a pointer to a - * user-defined structure available to the callback functions. - */ -PNG_EXPORT(90, void, png_set_progressive_read_fn, (png_structrp png_ptr, - png_voidp progressive_ptr, png_progressive_info_ptr info_fn, - png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)); - -/* Returns the user pointer associated with the push read functions */ -PNG_EXPORT(91, png_voidp, png_get_progressive_ptr, - (png_const_structrp png_ptr)); - -/* Function to be called when data becomes available */ -PNG_EXPORT(92, void, png_process_data, (png_structrp png_ptr, - png_inforp info_ptr, png_bytep buffer, png_size_t buffer_size)); - -/* A function which may be called *only* within png_process_data to stop the - * processing of any more data. The function returns the number of bytes - * remaining, excluding any that libpng has cached internally. A subsequent - * call to png_process_data must supply these bytes again. If the argument - * 'save' is set to true the routine will first save all the pending data and - * will always return 0. - */ -PNG_EXPORT(219, png_size_t, png_process_data_pause, (png_structrp, int save)); - -/* A function which may be called *only* outside (after) a call to - * png_process_data. It returns the number of bytes of data to skip in the - * input. Normally it will return 0, but if it returns a non-zero value the - * application must skip than number of bytes of input data and pass the - * following data to the next call to png_process_data. - */ -PNG_EXPORT(220, png_uint_32, png_process_data_skip, (png_structrp)); - -/* Function that combines rows. 'new_row' is a flag that should come from - * the callback and be non-NULL if anything needs to be done; the library - * stores its own version of the new data internally and ignores the passed - * in value. - */ -PNG_EXPORT(93, void, png_progressive_combine_row, (png_const_structrp png_ptr, - png_bytep old_row, png_const_bytep new_row)); -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -PNG_EXPORTA(94, png_voidp, png_malloc, (png_const_structrp png_ptr, - png_alloc_size_t size), PNG_ALLOCATED); -/* Added at libpng version 1.4.0 */ -PNG_EXPORTA(95, png_voidp, png_calloc, (png_const_structrp png_ptr, - png_alloc_size_t size), PNG_ALLOCATED); - -/* Added at libpng version 1.2.4 */ -PNG_EXPORTA(96, png_voidp, png_malloc_warn, (png_const_structrp png_ptr, - png_alloc_size_t size), PNG_ALLOCATED); - -/* Frees a pointer allocated by png_malloc() */ -PNG_EXPORT(97, void, png_free, (png_const_structrp png_ptr, png_voidp ptr)); - -/* Free data that was allocated internally */ -PNG_EXPORT(98, void, png_free_data, (png_const_structrp png_ptr, - png_inforp info_ptr, png_uint_32 free_me, int num)); - -/* Reassign responsibility for freeing existing data, whether allocated - * by libpng or by the application; this works on the png_info structure passed - * in, it does not change the state for other png_info structures. - * - * It is unlikely that this function works correctly as of 1.6.0 and using it - * may result either in memory leaks or double free of allocated data. - */ -PNG_EXPORT(99, void, png_data_freer, (png_const_structrp png_ptr, - png_inforp info_ptr, int freer, png_uint_32 mask)); - -/* Assignments for png_data_freer */ -#define PNG_DESTROY_WILL_FREE_DATA 1 -#define PNG_SET_WILL_FREE_DATA 1 -#define PNG_USER_WILL_FREE_DATA 2 -/* Flags for png_ptr->free_me and info_ptr->free_me */ -#define PNG_FREE_HIST 0x0008 -#define PNG_FREE_ICCP 0x0010 -#define PNG_FREE_SPLT 0x0020 -#define PNG_FREE_ROWS 0x0040 -#define PNG_FREE_PCAL 0x0080 -#define PNG_FREE_SCAL 0x0100 -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -# define PNG_FREE_UNKN 0x0200 -#endif -/* PNG_FREE_LIST 0x0400 removed in 1.6.0 because it is ignored */ -#define PNG_FREE_PLTE 0x1000 -#define PNG_FREE_TRNS 0x2000 -#define PNG_FREE_TEXT 0x4000 -#define PNG_FREE_ALL 0x7fff -#define PNG_FREE_MUL 0x4220 /* PNG_FREE_SPLT|PNG_FREE_TEXT|PNG_FREE_UNKN */ - -#ifdef PNG_USER_MEM_SUPPORTED -PNG_EXPORTA(100, png_voidp, png_malloc_default, (png_const_structrp png_ptr, - png_alloc_size_t size), PNG_ALLOCATED PNG_DEPRECATED); -PNG_EXPORTA(101, void, png_free_default, (png_const_structrp png_ptr, - png_voidp ptr), PNG_DEPRECATED); -#endif - -#ifdef PNG_ERROR_TEXT_SUPPORTED -/* Fatal error in PNG image of libpng - can't continue */ -PNG_EXPORTA(102, void, png_error, (png_const_structrp png_ptr, - png_const_charp error_message), PNG_NORETURN); - -/* The same, but the chunk name is prepended to the error string. */ -PNG_EXPORTA(103, void, png_chunk_error, (png_const_structrp png_ptr, - png_const_charp error_message), PNG_NORETURN); - -#else -/* Fatal error in PNG image of libpng - can't continue */ -PNG_EXPORTA(104, void, png_err, (png_const_structrp png_ptr), PNG_NORETURN); -# define png_error(s1,s2) png_err(s1) -# define png_chunk_error(s1,s2) png_err(s1) -#endif - -#ifdef PNG_WARNINGS_SUPPORTED -/* Non-fatal error in libpng. Can continue, but may have a problem. */ -PNG_EXPORT(105, void, png_warning, (png_const_structrp png_ptr, - png_const_charp warning_message)); - -/* Non-fatal error in libpng, chunk name is prepended to message. */ -PNG_EXPORT(106, void, png_chunk_warning, (png_const_structrp png_ptr, - png_const_charp warning_message)); -#else -# define png_warning(s1,s2) ((void)(s1)) -# define png_chunk_warning(s1,s2) ((void)(s1)) -#endif - -#ifdef PNG_BENIGN_ERRORS_SUPPORTED -/* Benign error in libpng. Can continue, but may have a problem. - * User can choose whether to handle as a fatal error or as a warning. */ -PNG_EXPORT(107, void, png_benign_error, (png_const_structrp png_ptr, - png_const_charp warning_message)); - -#ifdef PNG_READ_SUPPORTED -/* Same, chunk name is prepended to message (only during read) */ -PNG_EXPORT(108, void, png_chunk_benign_error, (png_const_structrp png_ptr, - png_const_charp warning_message)); -#endif - -PNG_EXPORT(109, void, png_set_benign_errors, - (png_structrp png_ptr, int allowed)); -#else -# ifdef PNG_ALLOW_BENIGN_ERRORS -# define png_benign_error png_warning -# define png_chunk_benign_error png_chunk_warning -# else -# define png_benign_error png_error -# define png_chunk_benign_error png_chunk_error -# endif -#endif - -/* The png_set_ functions are for storing values in the png_info_struct. - * Similarly, the png_get_ calls are used to read values from the - * png_info_struct, either storing the parameters in the passed variables, or - * setting pointers into the png_info_struct where the data is stored. The - * png_get_ functions return a non-zero value if the data was available - * in info_ptr, or return zero and do not change any of the parameters if the - * data was not available. - * - * These functions should be used instead of directly accessing png_info - * to avoid problems with future changes in the size and internal layout of - * png_info_struct. - */ -/* Returns "flag" if chunk data is valid in info_ptr. */ -PNG_EXPORT(110, png_uint_32, png_get_valid, (png_const_structrp png_ptr, - png_const_inforp info_ptr, png_uint_32 flag)); - -/* Returns number of bytes needed to hold a transformed row. */ -PNG_EXPORT(111, png_size_t, png_get_rowbytes, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -#ifdef PNG_INFO_IMAGE_SUPPORTED -/* Returns row_pointers, which is an array of pointers to scanlines that was - * returned from png_read_png(). - */ -PNG_EXPORT(112, png_bytepp, png_get_rows, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Set row_pointers, which is an array of pointers to scanlines for use - * by png_write_png(). - */ -PNG_EXPORT(113, void, png_set_rows, (png_const_structrp png_ptr, - png_inforp info_ptr, png_bytepp row_pointers)); -#endif - -/* Returns number of color channels in image. */ -PNG_EXPORT(114, png_byte, png_get_channels, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* Returns image width in pixels. */ -PNG_EXPORT(115, png_uint_32, png_get_image_width, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image height in pixels. */ -PNG_EXPORT(116, png_uint_32, png_get_image_height, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image bit_depth. */ -PNG_EXPORT(117, png_byte, png_get_bit_depth, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image color_type. */ -PNG_EXPORT(118, png_byte, png_get_color_type, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image filter_type. */ -PNG_EXPORT(119, png_byte, png_get_filter_type, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image interlace_type. */ -PNG_EXPORT(120, png_byte, png_get_interlace_type, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image compression_type. */ -PNG_EXPORT(121, png_byte, png_get_compression_type, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); - -/* Returns image resolution in pixels per meter, from pHYs chunk data. */ -PNG_EXPORT(122, png_uint_32, png_get_pixels_per_meter, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(123, png_uint_32, png_get_x_pixels_per_meter, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(124, png_uint_32, png_get_y_pixels_per_meter, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); - -/* Returns pixel aspect ratio, computed from pHYs chunk data. */ -PNG_FP_EXPORT(125, float, png_get_pixel_aspect_ratio, - (png_const_structrp png_ptr, png_const_inforp info_ptr)) -PNG_FIXED_EXPORT(210, png_fixed_point, png_get_pixel_aspect_ratio_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr)) - -/* Returns image x, y offset in pixels or microns, from oFFs chunk data. */ -PNG_EXPORT(126, png_int_32, png_get_x_offset_pixels, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(127, png_int_32, png_get_y_offset_pixels, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(128, png_int_32, png_get_x_offset_microns, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); -PNG_EXPORT(129, png_int_32, png_get_y_offset_microns, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - -#ifdef PNG_READ_SUPPORTED -/* Returns pointer to signature string read from PNG header */ -PNG_EXPORT(130, png_const_bytep, png_get_signature, (png_const_structrp png_ptr, - png_const_inforp info_ptr)); -#endif - -#ifdef PNG_bKGD_SUPPORTED -PNG_EXPORT(131, png_uint_32, png_get_bKGD, (png_const_structrp png_ptr, - png_inforp info_ptr, png_color_16p *background)); -#endif - -#ifdef PNG_bKGD_SUPPORTED -PNG_EXPORT(132, void, png_set_bKGD, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_color_16p background)); -#endif - -#ifdef PNG_cHRM_SUPPORTED -PNG_FP_EXPORT(133, png_uint_32, png_get_cHRM, (png_const_structrp png_ptr, - png_const_inforp info_ptr, double *white_x, double *white_y, double *red_x, - double *red_y, double *green_x, double *green_y, double *blue_x, - double *blue_y)) -PNG_FP_EXPORT(230, png_uint_32, png_get_cHRM_XYZ, (png_const_structrp png_ptr, - png_const_inforp info_ptr, double *red_X, double *red_Y, double *red_Z, - double *green_X, double *green_Y, double *green_Z, double *blue_X, - double *blue_Y, double *blue_Z)) -PNG_FIXED_EXPORT(134, png_uint_32, png_get_cHRM_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *int_white_x, png_fixed_point *int_white_y, - png_fixed_point *int_red_x, png_fixed_point *int_red_y, - png_fixed_point *int_green_x, png_fixed_point *int_green_y, - png_fixed_point *int_blue_x, png_fixed_point *int_blue_y)) -PNG_FIXED_EXPORT(231, png_uint_32, png_get_cHRM_XYZ_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *int_red_X, png_fixed_point *int_red_Y, - png_fixed_point *int_red_Z, png_fixed_point *int_green_X, - png_fixed_point *int_green_Y, png_fixed_point *int_green_Z, - png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y, - png_fixed_point *int_blue_Z)) -#endif - -#ifdef PNG_cHRM_SUPPORTED -PNG_FP_EXPORT(135, void, png_set_cHRM, (png_const_structrp png_ptr, - png_inforp info_ptr, - double white_x, double white_y, double red_x, double red_y, double green_x, - double green_y, double blue_x, double blue_y)) -PNG_FP_EXPORT(232, void, png_set_cHRM_XYZ, (png_const_structrp png_ptr, - png_inforp info_ptr, double red_X, double red_Y, double red_Z, - double green_X, double green_Y, double green_Z, double blue_X, - double blue_Y, double blue_Z)) -PNG_FIXED_EXPORT(136, void, png_set_cHRM_fixed, (png_const_structrp png_ptr, - png_inforp info_ptr, png_fixed_point int_white_x, - png_fixed_point int_white_y, png_fixed_point int_red_x, - png_fixed_point int_red_y, png_fixed_point int_green_x, - png_fixed_point int_green_y, png_fixed_point int_blue_x, - png_fixed_point int_blue_y)) -PNG_FIXED_EXPORT(233, void, png_set_cHRM_XYZ_fixed, (png_const_structrp png_ptr, - png_inforp info_ptr, png_fixed_point int_red_X, png_fixed_point int_red_Y, - png_fixed_point int_red_Z, png_fixed_point int_green_X, - png_fixed_point int_green_Y, png_fixed_point int_green_Z, - png_fixed_point int_blue_X, png_fixed_point int_blue_Y, - png_fixed_point int_blue_Z)) -#endif - -#ifdef PNG_gAMA_SUPPORTED -PNG_FP_EXPORT(137, png_uint_32, png_get_gAMA, (png_const_structrp png_ptr, - png_const_inforp info_ptr, double *file_gamma)) -PNG_FIXED_EXPORT(138, png_uint_32, png_get_gAMA_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *int_file_gamma)) -#endif - -#ifdef PNG_gAMA_SUPPORTED -PNG_FP_EXPORT(139, void, png_set_gAMA, (png_const_structrp png_ptr, - png_inforp info_ptr, double file_gamma)) -PNG_FIXED_EXPORT(140, void, png_set_gAMA_fixed, (png_const_structrp png_ptr, - png_inforp info_ptr, png_fixed_point int_file_gamma)) -#endif - -#ifdef PNG_hIST_SUPPORTED -PNG_EXPORT(141, png_uint_32, png_get_hIST, (png_const_structrp png_ptr, - png_inforp info_ptr, png_uint_16p *hist)); -#endif - -#ifdef PNG_hIST_SUPPORTED -PNG_EXPORT(142, void, png_set_hIST, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_uint_16p hist)); -#endif - -PNG_EXPORT(143, png_uint_32, png_get_IHDR, (png_const_structrp png_ptr, - png_const_inforp info_ptr, png_uint_32 *width, png_uint_32 *height, - int *bit_depth, int *color_type, int *interlace_method, - int *compression_method, int *filter_method)); - -PNG_EXPORT(144, void, png_set_IHDR, (png_const_structrp png_ptr, - png_inforp info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_method, int compression_method, - int filter_method)); - -#ifdef PNG_oFFs_SUPPORTED -PNG_EXPORT(145, png_uint_32, png_get_oFFs, (png_const_structrp png_ptr, - png_const_inforp info_ptr, png_int_32 *offset_x, png_int_32 *offset_y, - int *unit_type)); -#endif - -#ifdef PNG_oFFs_SUPPORTED -PNG_EXPORT(146, void, png_set_oFFs, (png_const_structrp png_ptr, - png_inforp info_ptr, png_int_32 offset_x, png_int_32 offset_y, - int unit_type)); -#endif - -#ifdef PNG_pCAL_SUPPORTED -PNG_EXPORT(147, png_uint_32, png_get_pCAL, (png_const_structrp png_ptr, - png_inforp info_ptr, png_charp *purpose, png_int_32 *X0, - png_int_32 *X1, int *type, int *nparams, png_charp *units, - png_charpp *params)); -#endif - -#ifdef PNG_pCAL_SUPPORTED -PNG_EXPORT(148, void, png_set_pCAL, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_charp purpose, png_int_32 X0, png_int_32 X1, - int type, int nparams, png_const_charp units, png_charpp params)); -#endif - -#ifdef PNG_pHYs_SUPPORTED -PNG_EXPORT(149, png_uint_32, png_get_pHYs, (png_const_structrp png_ptr, - png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, - int *unit_type)); -#endif - -#ifdef PNG_pHYs_SUPPORTED -PNG_EXPORT(150, void, png_set_pHYs, (png_const_structrp png_ptr, - png_inforp info_ptr, png_uint_32 res_x, png_uint_32 res_y, int unit_type)); -#endif - -PNG_EXPORT(151, png_uint_32, png_get_PLTE, (png_const_structrp png_ptr, - png_inforp info_ptr, png_colorp *palette, int *num_palette)); - -PNG_EXPORT(152, void, png_set_PLTE, (png_structrp png_ptr, - png_inforp info_ptr, png_const_colorp palette, int num_palette)); - -#ifdef PNG_sBIT_SUPPORTED -PNG_EXPORT(153, png_uint_32, png_get_sBIT, (png_const_structrp png_ptr, - png_inforp info_ptr, png_color_8p *sig_bit)); -#endif - -#ifdef PNG_sBIT_SUPPORTED -PNG_EXPORT(154, void, png_set_sBIT, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_color_8p sig_bit)); -#endif - -#ifdef PNG_sRGB_SUPPORTED -PNG_EXPORT(155, png_uint_32, png_get_sRGB, (png_const_structrp png_ptr, - png_const_inforp info_ptr, int *file_srgb_intent)); -#endif - -#ifdef PNG_sRGB_SUPPORTED -PNG_EXPORT(156, void, png_set_sRGB, (png_const_structrp png_ptr, - png_inforp info_ptr, int srgb_intent)); -PNG_EXPORT(157, void, png_set_sRGB_gAMA_and_cHRM, (png_const_structrp png_ptr, - png_inforp info_ptr, int srgb_intent)); -#endif - -#ifdef PNG_iCCP_SUPPORTED -PNG_EXPORT(158, png_uint_32, png_get_iCCP, (png_const_structrp png_ptr, - png_inforp info_ptr, png_charpp name, int *compression_type, - png_bytepp profile, png_uint_32 *proflen)); -#endif - -#ifdef PNG_iCCP_SUPPORTED -PNG_EXPORT(159, void, png_set_iCCP, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_charp name, int compression_type, - png_const_bytep profile, png_uint_32 proflen)); -#endif - -#ifdef PNG_sPLT_SUPPORTED -PNG_EXPORT(160, int, png_get_sPLT, (png_const_structrp png_ptr, - png_inforp info_ptr, png_sPLT_tpp entries)); -#endif - -#ifdef PNG_sPLT_SUPPORTED -PNG_EXPORT(161, void, png_set_sPLT, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_sPLT_tp entries, int nentries)); -#endif - -#ifdef PNG_TEXT_SUPPORTED -/* png_get_text also returns the number of text chunks in *num_text */ -PNG_EXPORT(162, int, png_get_text, (png_const_structrp png_ptr, - png_inforp info_ptr, png_textp *text_ptr, int *num_text)); -#endif - -/* Note while png_set_text() will accept a structure whose text, - * language, and translated keywords are NULL pointers, the structure - * returned by png_get_text will always contain regular - * zero-terminated C strings. They might be empty strings but - * they will never be NULL pointers. - */ - -#ifdef PNG_TEXT_SUPPORTED -PNG_EXPORT(163, void, png_set_text, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_textp text_ptr, int num_text)); -#endif - -#ifdef PNG_tIME_SUPPORTED -PNG_EXPORT(164, png_uint_32, png_get_tIME, (png_const_structrp png_ptr, - png_inforp info_ptr, png_timep *mod_time)); -#endif - -#ifdef PNG_tIME_SUPPORTED -PNG_EXPORT(165, void, png_set_tIME, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_timep mod_time)); -#endif - -#ifdef PNG_tRNS_SUPPORTED -PNG_EXPORT(166, png_uint_32, png_get_tRNS, (png_const_structrp png_ptr, - png_inforp info_ptr, png_bytep *trans_alpha, int *num_trans, - png_color_16p *trans_color)); -#endif - -#ifdef PNG_tRNS_SUPPORTED -PNG_EXPORT(167, void, png_set_tRNS, (png_structrp png_ptr, - png_inforp info_ptr, png_const_bytep trans_alpha, int num_trans, - png_const_color_16p trans_color)); -#endif - -#ifdef PNG_sCAL_SUPPORTED -PNG_FP_EXPORT(168, png_uint_32, png_get_sCAL, (png_const_structrp png_ptr, - png_const_inforp info_ptr, int *unit, double *width, double *height)) -#if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \ - defined(PNG_FLOATING_POINT_SUPPORTED) -/* NOTE: this API is currently implemented using floating point arithmetic, - * consequently it can only be used on systems with floating point support. - * In any case the range of values supported by png_fixed_point is small and it - * is highly recommended that png_get_sCAL_s be used instead. - */ -PNG_FIXED_EXPORT(214, png_uint_32, png_get_sCAL_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, - png_fixed_point *width, png_fixed_point *height)) -#endif -PNG_EXPORT(169, png_uint_32, png_get_sCAL_s, - (png_const_structrp png_ptr, png_const_inforp info_ptr, int *unit, - png_charpp swidth, png_charpp sheight)); - -PNG_FP_EXPORT(170, void, png_set_sCAL, (png_const_structrp png_ptr, - png_inforp info_ptr, int unit, double width, double height)) -PNG_FIXED_EXPORT(213, void, png_set_sCAL_fixed, (png_const_structrp png_ptr, - png_inforp info_ptr, int unit, png_fixed_point width, - png_fixed_point height)) -PNG_EXPORT(171, void, png_set_sCAL_s, (png_const_structrp png_ptr, - png_inforp info_ptr, int unit, - png_const_charp swidth, png_const_charp sheight)); -#endif /* PNG_sCAL_SUPPORTED */ - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED -/* Provide the default handling for all unknown chunks or, optionally, for - * specific unknown chunks. - * - * NOTE: prior to 1.6.0 the handling specified for particular chunks on read was - * ignored and the default was used, the per-chunk setting only had an effect on - * write. If you wish to have chunk-specific handling on read in code that must - * work on earlier versions you must use a user chunk callback to specify the - * desired handling (keep or discard.) - * - * The 'keep' parameter is a PNG_HANDLE_CHUNK_ value as listed below. The - * parameter is interpreted as follows: - * - * READ: - * PNG_HANDLE_CHUNK_AS_DEFAULT: - * Known chunks: do normal libpng processing, do not keep the chunk (but - * see the comments below about PNG_HANDLE_AS_UNKNOWN_SUPPORTED) - * Unknown chunks: for a specific chunk use the global default, when used - * as the default discard the chunk data. - * PNG_HANDLE_CHUNK_NEVER: - * Discard the chunk data. - * PNG_HANDLE_CHUNK_IF_SAFE: - * Keep the chunk data if the chunk is not critical else raise a chunk - * error. - * PNG_HANDLE_CHUNK_ALWAYS: - * Keep the chunk data. - * - * If the chunk data is saved it can be retrieved using png_get_unknown_chunks, - * below. Notice that specifying "AS_DEFAULT" as a global default is equivalent - * to specifying "NEVER", however when "AS_DEFAULT" is used for specific chunks - * it simply resets the behavior to the libpng default. - * - * INTERACTION WTIH USER CHUNK CALLBACKS: - * The per-chunk handling is always used when there is a png_user_chunk_ptr - * callback and the callback returns 0; the chunk is then always stored *unless* - * it is critical and the per-chunk setting is other than ALWAYS. Notice that - * the global default is *not* used in this case. (In effect the per-chunk - * value is incremented to at least IF_SAFE.) - * - * IMPORTANT NOTE: this behavior will change in libpng 1.7 - the global and - * per-chunk defaults will be honored. If you want to preserve the current - * behavior when your callback returns 0 you must set PNG_HANDLE_CHUNK_IF_SAFE - * as the default - if you don't do this libpng 1.6 will issue a warning. - * - * If you want unhandled unknown chunks to be discarded in libpng 1.6 and - * earlier simply return '1' (handled). - * - * PNG_HANDLE_AS_UNKNOWN_SUPPORTED: - * If this is *not* set known chunks will always be handled by libpng and - * will never be stored in the unknown chunk list. Known chunks listed to - * png_set_keep_unknown_chunks will have no effect. If it is set then known - * chunks listed with a keep other than AS_DEFAULT will *never* be processed - * by libpng, in addition critical chunks must either be processed by the - * callback or saved. - * - * The IHDR and IEND chunks must not be listed. Because this turns off the - * default handling for chunks that would otherwise be recognized the - * behavior of libpng transformations may well become incorrect! - * - * WRITE: - * When writing chunks the options only apply to the chunks specified by - * png_set_unknown_chunks (below), libpng will *always* write known chunks - * required by png_set_ calls and will always write the core critical chunks - * (as required for PLTE). - * - * Each chunk in the png_set_unknown_chunks list is looked up in the - * png_set_keep_unknown_chunks list to find the keep setting, this is then - * interpreted as follows: - * - * PNG_HANDLE_CHUNK_AS_DEFAULT: - * Write safe-to-copy chunks and write other chunks if the global - * default is set to _ALWAYS, otherwise don't write this chunk. - * PNG_HANDLE_CHUNK_NEVER: - * Do not write the chunk. - * PNG_HANDLE_CHUNK_IF_SAFE: - * Write the chunk if it is safe-to-copy, otherwise do not write it. - * PNG_HANDLE_CHUNK_ALWAYS: - * Write the chunk. - * - * Note that the default behavior is effectively the opposite of the read case - - * in read unknown chunks are not stored by default, in write they are written - * by default. Also the behavior of PNG_HANDLE_CHUNK_IF_SAFE is very different - * - on write the safe-to-copy bit is checked, on read the critical bit is - * checked and on read if the chunk is critical an error will be raised. - * - * num_chunks: - * =========== - * If num_chunks is positive, then the "keep" parameter specifies the manner - * for handling only those chunks appearing in the chunk_list array, - * otherwise the chunk list array is ignored. - * - * If num_chunks is 0 the "keep" parameter specifies the default behavior for - * unknown chunks, as described above. - * - * If num_chunks is negative, then the "keep" parameter specifies the manner - * for handling all unknown chunks plus all chunks recognized by libpng - * except for the IHDR, PLTE, tRNS, IDAT, and IEND chunks (which continue to - * be processed by libpng. - */ -PNG_EXPORT(172, void, png_set_keep_unknown_chunks, (png_structrp png_ptr, - int keep, png_const_bytep chunk_list, int num_chunks)); - -/* The "keep" PNG_HANDLE_CHUNK_ parameter for the specified chunk is returned; - * the result is therefore true (non-zero) if special handling is required, - * false for the default handling. - */ -PNG_EXPORT(173, int, png_handle_as_unknown, (png_const_structrp png_ptr, - png_const_bytep chunk_name)); -#endif - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -PNG_EXPORT(174, void, png_set_unknown_chunks, (png_const_structrp png_ptr, - png_inforp info_ptr, png_const_unknown_chunkp unknowns, - int num_unknowns)); - /* NOTE: prior to 1.6.0 this routine set the 'location' field of the added - * unknowns to the location currently stored in the png_struct. This is - * invariably the wrong value on write. To fix this call the following API - * for each chunk in the list with the correct location. If you know your - * code won't be compiled on earlier versions you can rely on - * png_set_unknown_chunks(write-ptr, png_get_unknown_chunks(read-ptr)) doing - * the correct thing. - */ - -PNG_EXPORT(175, void, png_set_unknown_chunk_location, - (png_const_structrp png_ptr, png_inforp info_ptr, int chunk, int location)); - -PNG_EXPORT(176, int, png_get_unknown_chunks, (png_const_structrp png_ptr, - png_inforp info_ptr, png_unknown_chunkpp entries)); -#endif - -/* Png_free_data() will turn off the "valid" flag for anything it frees. - * If you need to turn it off for a chunk that your application has freed, - * you can use png_set_invalid(png_ptr, info_ptr, PNG_INFO_CHNK); - */ -PNG_EXPORT(177, void, png_set_invalid, (png_const_structrp png_ptr, - png_inforp info_ptr, int mask)); - -#ifdef PNG_INFO_IMAGE_SUPPORTED -/* The "params" pointer is currently not used and is for future expansion. */ -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -PNG_EXPORT(178, void, png_read_png, (png_structrp png_ptr, png_inforp info_ptr, - int transforms, png_voidp params)); -#endif -#ifdef PNG_WRITE_SUPPORTED -PNG_EXPORT(179, void, png_write_png, (png_structrp png_ptr, png_inforp info_ptr, - int transforms, png_voidp params)); -#endif -#endif - -PNG_EXPORT(180, png_const_charp, png_get_copyright, - (png_const_structrp png_ptr)); -PNG_EXPORT(181, png_const_charp, png_get_header_ver, - (png_const_structrp png_ptr)); -PNG_EXPORT(182, png_const_charp, png_get_header_version, - (png_const_structrp png_ptr)); -PNG_EXPORT(183, png_const_charp, png_get_libpng_ver, - (png_const_structrp png_ptr)); - -#ifdef PNG_MNG_FEATURES_SUPPORTED -PNG_EXPORT(184, png_uint_32, png_permit_mng_features, (png_structrp png_ptr, - png_uint_32 mng_features_permitted)); -#endif - -/* For use in png_set_keep_unknown, added to version 1.2.6 */ -#define PNG_HANDLE_CHUNK_AS_DEFAULT 0 -#define PNG_HANDLE_CHUNK_NEVER 1 -#define PNG_HANDLE_CHUNK_IF_SAFE 2 -#define PNG_HANDLE_CHUNK_ALWAYS 3 -#define PNG_HANDLE_CHUNK_LAST 4 - -/* Strip the prepended error numbers ("#nnn ") from error and warning - * messages before passing them to the error or warning handler. - */ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -PNG_EXPORT(185, void, png_set_strip_error_numbers, (png_structrp png_ptr, - png_uint_32 strip_mode)); -#endif - -/* Added in libpng-1.2.6 */ -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -PNG_EXPORT(186, void, png_set_user_limits, (png_structrp png_ptr, - png_uint_32 user_width_max, png_uint_32 user_height_max)); -PNG_EXPORT(187, png_uint_32, png_get_user_width_max, - (png_const_structrp png_ptr)); -PNG_EXPORT(188, png_uint_32, png_get_user_height_max, - (png_const_structrp png_ptr)); -/* Added in libpng-1.4.0 */ -PNG_EXPORT(189, void, png_set_chunk_cache_max, (png_structrp png_ptr, - png_uint_32 user_chunk_cache_max)); -PNG_EXPORT(190, png_uint_32, png_get_chunk_cache_max, - (png_const_structrp png_ptr)); -/* Added in libpng-1.4.1 */ -PNG_EXPORT(191, void, png_set_chunk_malloc_max, (png_structrp png_ptr, - png_alloc_size_t user_chunk_cache_max)); -PNG_EXPORT(192, png_alloc_size_t, png_get_chunk_malloc_max, - (png_const_structrp png_ptr)); -#endif - -#if defined(PNG_INCH_CONVERSIONS_SUPPORTED) -PNG_EXPORT(193, png_uint_32, png_get_pixels_per_inch, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); - -PNG_EXPORT(194, png_uint_32, png_get_x_pixels_per_inch, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); - -PNG_EXPORT(195, png_uint_32, png_get_y_pixels_per_inch, - (png_const_structrp png_ptr, png_const_inforp info_ptr)); - -PNG_FP_EXPORT(196, float, png_get_x_offset_inches, - (png_const_structrp png_ptr, png_const_inforp info_ptr)) -#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */ -PNG_FIXED_EXPORT(211, png_fixed_point, png_get_x_offset_inches_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr)) -#endif - -PNG_FP_EXPORT(197, float, png_get_y_offset_inches, (png_const_structrp png_ptr, - png_const_inforp info_ptr)) -#ifdef PNG_FIXED_POINT_SUPPORTED /* otherwise not implemented. */ -PNG_FIXED_EXPORT(212, png_fixed_point, png_get_y_offset_inches_fixed, - (png_const_structrp png_ptr, png_const_inforp info_ptr)) -#endif - -# ifdef PNG_pHYs_SUPPORTED -PNG_EXPORT(198, png_uint_32, png_get_pHYs_dpi, (png_const_structrp png_ptr, - png_const_inforp info_ptr, png_uint_32 *res_x, png_uint_32 *res_y, - int *unit_type)); -# endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */ - -/* Added in libpng-1.4.0 */ -#ifdef PNG_IO_STATE_SUPPORTED -PNG_EXPORT(199, png_uint_32, png_get_io_state, (png_const_structrp png_ptr)); - -/* Removed from libpng 1.6; use png_get_io_chunk_type. */ -PNG_REMOVED(200, png_const_bytep, png_get_io_chunk_name, (png_structrp png_ptr), - PNG_DEPRECATED) - -PNG_EXPORT(216, png_uint_32, png_get_io_chunk_type, - (png_const_structrp png_ptr)); - -/* The flags returned by png_get_io_state() are the following: */ -# define PNG_IO_NONE 0x0000 /* no I/O at this moment */ -# define PNG_IO_READING 0x0001 /* currently reading */ -# define PNG_IO_WRITING 0x0002 /* currently writing */ -# define PNG_IO_SIGNATURE 0x0010 /* currently at the file signature */ -# define PNG_IO_CHUNK_HDR 0x0020 /* currently at the chunk header */ -# define PNG_IO_CHUNK_DATA 0x0040 /* currently at the chunk data */ -# define PNG_IO_CHUNK_CRC 0x0080 /* currently at the chunk crc */ -# define PNG_IO_MASK_OP 0x000f /* current operation: reading/writing */ -# define PNG_IO_MASK_LOC 0x00f0 /* current location: sig/hdr/data/crc */ -#endif /* ?PNG_IO_STATE_SUPPORTED */ - -/* Interlace support. The following macros are always defined so that if - * libpng interlace handling is turned off the macros may be used to handle - * interlaced images within the application. - */ -#define PNG_INTERLACE_ADAM7_PASSES 7 - -/* Two macros to return the first row and first column of the original, - * full, image which appears in a given pass. 'pass' is in the range 0 - * to 6 and the result is in the range 0 to 7. - */ -#define PNG_PASS_START_ROW(pass) (((1&~(pass))<<(3-((pass)>>1)))&7) -#define PNG_PASS_START_COL(pass) (((1& (pass))<<(3-(((pass)+1)>>1)))&7) - -/* A macro to return the offset between pixels in the output row for a pair of - * pixels in the input - effectively the inverse of the 'COL_SHIFT' macro that - * follows. Note that ROW_OFFSET is the offset from one row to the next whereas - * COL_OFFSET is from one column to the next, within a row. - */ -#define PNG_PASS_ROW_OFFSET(pass) ((pass)>2?(8>>(((pass)-1)>>1)):8) -#define PNG_PASS_COL_OFFSET(pass) (1<<((7-(pass))>>1)) - -/* Two macros to help evaluate the number of rows or columns in each - * pass. This is expressed as a shift - effectively log2 of the number or - * rows or columns in each 8x8 tile of the original image. - */ -#define PNG_PASS_ROW_SHIFT(pass) ((pass)>2?(8-(pass))>>1:3) -#define PNG_PASS_COL_SHIFT(pass) ((pass)>1?(7-(pass))>>1:3) - -/* Hence two macros to determine the number of rows or columns in a given - * pass of an image given its height or width. In fact these macros may - * return non-zero even though the sub-image is empty, because the other - * dimension may be empty for a small image. - */ -#define PNG_PASS_ROWS(height, pass) (((height)+(((1<>PNG_PASS_ROW_SHIFT(pass)) -#define PNG_PASS_COLS(width, pass) (((width)+(((1<>PNG_PASS_COL_SHIFT(pass)) - -/* For the reader row callbacks (both progressive and sequential) it is - * necessary to find the row in the output image given a row in an interlaced - * image, so two more macros: - */ -#define PNG_ROW_FROM_PASS_ROW(y_in, pass) \ - (((y_in)<>(((7-(off))-(pass))<<2)) & 0xF) | \ - ((0x01145AF0>>(((7-(off))-(pass))<<2)) & 0xF0)) - -#define PNG_ROW_IN_INTERLACE_PASS(y, pass) \ - ((PNG_PASS_MASK(pass,0) >> ((y)&7)) & 1) -#define PNG_COL_IN_INTERLACE_PASS(x, pass) \ - ((PNG_PASS_MASK(pass,1) >> ((x)&7)) & 1) - -#ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED -/* With these routines we avoid an integer divide, which will be slower on - * most machines. However, it does take more operations than the corresponding - * divide method, so it may be slower on a few RISC systems. There are two - * shifts (by 8 or 16 bits) and an addition, versus a single integer divide. - * - * Note that the rounding factors are NOT supposed to be the same! 128 and - * 32768 are correct for the NODIV code; 127 and 32767 are correct for the - * standard method. - * - * [Optimized code by Greg Roelofs and Mark Adler...blame us for bugs. :-) ] - */ - - /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */ - -# define png_composite(composite, fg, alpha, bg) \ - { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) \ - * (png_uint_16)(alpha) \ - + (png_uint_16)(bg)*(png_uint_16)(255 \ - - (png_uint_16)(alpha)) + 128); \ - (composite) = (png_byte)((temp + (temp >> 8)) >> 8); } - -# define png_composite_16(composite, fg, alpha, bg) \ - { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) \ - * (png_uint_32)(alpha) \ - + (png_uint_32)(bg)*(65535 \ - - (png_uint_32)(alpha)) + 32768); \ - (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); } - -#else /* Standard method using integer division */ - -# define png_composite(composite, fg, alpha, bg) \ - (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \ - (png_uint_16)(bg) * (png_uint_16)(255 - (png_uint_16)(alpha)) + \ - 127) / 255) - -# define png_composite_16(composite, fg, alpha, bg) \ - (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \ - (png_uint_32)(bg)*(png_uint_32)(65535 - (png_uint_32)(alpha)) + \ - 32767) / 65535) -#endif /* PNG_READ_COMPOSITE_NODIV_SUPPORTED */ - -#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED -PNG_EXPORT(201, png_uint_32, png_get_uint_32, (png_const_bytep buf)); -PNG_EXPORT(202, png_uint_16, png_get_uint_16, (png_const_bytep buf)); -PNG_EXPORT(203, png_int_32, png_get_int_32, (png_const_bytep buf)); -#endif - -PNG_EXPORT(204, png_uint_32, png_get_uint_31, (png_const_structrp png_ptr, - png_const_bytep buf)); -/* No png_get_int_16 -- may be added if there's a real need for it. */ - -/* Place a 32-bit number into a buffer in PNG byte order (big-endian). */ -#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED -PNG_EXPORT(205, void, png_save_uint_32, (png_bytep buf, png_uint_32 i)); -#endif -#ifdef PNG_SAVE_INT_32_SUPPORTED -PNG_EXPORT(206, void, png_save_int_32, (png_bytep buf, png_int_32 i)); -#endif - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED -PNG_EXPORT(207, void, png_save_uint_16, (png_bytep buf, unsigned int i)); -/* No png_save_int_16 -- may be added if there's a real need for it. */ -#endif - -#ifdef PNG_USE_READ_MACROS -/* Inline macros to do direct reads of bytes from the input buffer. - * The png_get_int_32() routine assumes we are using two's complement - * format for negative values, which is almost certainly true. - */ -# define PNG_get_uint_32(buf) \ - (((png_uint_32)(*(buf)) << 24) + \ - ((png_uint_32)(*((buf) + 1)) << 16) + \ - ((png_uint_32)(*((buf) + 2)) << 8) + \ - ((png_uint_32)(*((buf) + 3)))) - - /* From libpng-1.4.0 until 1.4.4, the png_get_uint_16 macro (but not the - * function) incorrectly returned a value of type png_uint_32. - */ -# define PNG_get_uint_16(buf) \ - ((png_uint_16) \ - (((unsigned int)(*(buf)) << 8) + \ - ((unsigned int)(*((buf) + 1))))) - -# define PNG_get_int_32(buf) \ - ((png_int_32)((*(buf) & 0x80) \ - ? -((png_int_32)((png_get_uint_32(buf) ^ 0xffffffffL) + 1)) \ - : (png_int_32)png_get_uint_32(buf))) - - /* If PNG_PREFIX is defined the same thing as below happens in pnglibconf.h, - * but defining a macro name prefixed with PNG_PREFIX. - */ -# ifndef PNG_PREFIX -# define png_get_uint_32(buf) PNG_get_uint_32(buf) -# define png_get_uint_16(buf) PNG_get_uint_16(buf) -# define png_get_int_32(buf) PNG_get_int_32(buf) -# endif -#else -# ifdef PNG_PREFIX - /* No macros; revert to the (redefined) function */ -# define PNG_get_uint_32 (png_get_uint_32) -# define PNG_get_uint_16 (png_get_uint_16) -# define PNG_get_int_32 (png_get_int_32) -# endif -#endif - -/******************************************************************************* - * SIMPLIFIED API - ******************************************************************************* - * - * Please read the documentation in libpng-manual.txt (TODO: write said - * documentation) if you don't understand what follows. - * - * The simplified API hides the details of both libpng and the PNG file format - * itself. It allows PNG files to be read into a very limited number of - * in-memory bitmap formats or to be written from the same formats. If these - * formats do not accomodate your needs then you can, and should, use the more - * sophisticated APIs above - these support a wide variety of in-memory formats - * and a wide variety of sophisticated transformations to those formats as well - * as a wide variety of APIs to manipulate ancillary information. - * - * To read a PNG file using the simplified API: - * - * 1) Declare a 'png_image' structure (see below) on the stack and set the - * version field to PNG_IMAGE_VERSION. - * 2) Call the appropriate png_image_begin_read... function. - * 3) Set the png_image 'format' member to the required sample format. - * 4) Allocate a buffer for the image and, if required, the color-map. - * 5) Call png_image_finish_read to read the image and, if required, the - * color-map into your buffers. - * - * There are no restrictions on the format of the PNG input itself; all valid - * color types, bit depths, and interlace methods are acceptable, and the - * input image is transformed as necessary to the requested in-memory format - * during the png_image_finish_read() step. The only caveat is that if you - * request a color-mapped image from a PNG that is full-color or makes - * complex use of an alpha channel the transformation is extremely lossy and the - * result may look terrible. - * - * To write a PNG file using the simplified API: - * - * 1) Declare a 'png_image' structure on the stack and memset() it to all zero. - * 2) Initialize the members of the structure that describe the image, setting - * the 'format' member to the format of the image samples. - * 3) Call the appropriate png_image_write... function with a pointer to the - * image and, if necessary, the color-map to write the PNG data. - * - * png_image is a structure that describes the in-memory format of an image - * when it is being read or defines the in-memory format of an image that you - * need to write: - */ -#define PNG_IMAGE_VERSION 1 - -typedef struct png_control *png_controlp; -typedef struct -{ - png_controlp opaque; /* Initialize to NULL, free with png_image_free */ - png_uint_32 version; /* Set to PNG_IMAGE_VERSION */ - png_uint_32 width; /* Image width in pixels (columns) */ - png_uint_32 height; /* Image height in pixels (rows) */ - png_uint_32 format; /* Image format as defined below */ - png_uint_32 flags; /* A bit mask containing informational flags */ - png_uint_32 colormap_entries; - /* Number of entries in the color-map */ - - /* In the event of an error or warning the following field will be set to a - * non-zero value and the 'message' field will contain a '\0' terminated - * string with the libpng error or warning message. If both warnings and - * an error were encountered, only the error is recorded. If there - * are multiple warnings, only the first one is recorded. - * - * The upper 30 bits of this value are reserved, the low two bits contain - * a value as follows: - */ -# define PNG_IMAGE_WARNING 1 -# define PNG_IMAGE_ERROR 2 - /* - * The result is a two bit code such that a value more than 1 indicates - * a failure in the API just called: - * - * 0 - no warning or error - * 1 - warning - * 2 - error - * 3 - error preceded by warning - */ -# define PNG_IMAGE_FAILED(png_cntrl) ((((png_cntrl).warning_or_error)&0x03)>1) - - png_uint_32 warning_or_error; - - char message[64]; -} png_image, *png_imagep; - -/* The samples of the image have one to four channels whose components have - * original values in the range 0 to 1.0: - * - * 1: A single gray or luminance channel (G). - * 2: A gray/luminance channel and an alpha channel (GA). - * 3: Three red, green, blue color channels (RGB). - * 4: Three color channels and an alpha channel (RGBA). - * - * The components are encoded in one of two ways: - * - * a) As a small integer, value 0..255, contained in a single byte. For the - * alpha channel the original value is simply value/255. For the color or - * luminance channels the value is encoded according to the sRGB specification - * and matches the 8-bit format expected by typical display devices. - * - * The color/gray channels are not scaled (pre-multiplied) by the alpha - * channel and are suitable for passing to color management software. - * - * b) As a value in the range 0..65535, contained in a 2-byte integer. All - * channels can be converted to the original value by dividing by 65535; all - * channels are linear. Color channels use the RGB encoding (RGB end-points) of - * the sRGB specification. This encoding is identified by the - * PNG_FORMAT_FLAG_LINEAR flag below. - * - * When the simplified API needs to convert between sRGB and linear colorspaces, - * the actual sRGB transfer curve defined in the sRGB specification (see the - * article at http://en.wikipedia.org/wiki/SRGB) is used, not the gamma=1/2.2 - * approximation used elsewhere in libpng. - * - * When an alpha channel is present it is expected to denote pixel coverage - * of the color or luminance channels and is returned as an associated alpha - * channel: the color/gray channels are scaled (pre-multiplied) by the alpha - * value. - * - * The samples are either contained directly in the image data, between 1 and 8 - * bytes per pixel according to the encoding, or are held in a color-map indexed - * by bytes in the image data. In the case of a color-map the color-map entries - * are individual samples, encoded as above, and the image data has one byte per - * pixel to select the relevant sample from the color-map. - */ - -/* PNG_FORMAT_* - * - * #defines to be used in png_image::format. Each #define identifies a - * particular layout of sample data and, if present, alpha values. There are - * separate defines for each of the two component encodings. - * - * A format is built up using single bit flag values. All combinations are - * valid. Formats can be built up from the flag values or you can use one of - * the predefined values below. When testing formats always use the FORMAT_FLAG - * macros to test for individual features - future versions of the library may - * add new flags. - * - * When reading or writing color-mapped images the format should be set to the - * format of the entries in the color-map then png_image_{read,write}_colormap - * called to read or write the color-map and set the format correctly for the - * image data. Do not set the PNG_FORMAT_FLAG_COLORMAP bit directly! - * - * NOTE: libpng can be built with particular features disabled, if you see - * compiler errors because the definition of one of the following flags has been - * compiled out it is because libpng does not have the required support. It is - * possible, however, for the libpng configuration to enable the format on just - * read or just write; in that case you may see an error at run time. You can - * guard against this by checking for the definition of the appropriate - * "_SUPPORTED" macro, one of: - * - * PNG_SIMPLIFIED_{READ,WRITE}_{BGR,AFIRST}_SUPPORTED - */ -#define PNG_FORMAT_FLAG_ALPHA 0x01U /* format with an alpha channel */ -#define PNG_FORMAT_FLAG_COLOR 0x02U /* color format: otherwise grayscale */ -#define PNG_FORMAT_FLAG_LINEAR 0x04U /* 2 byte channels else 1 byte */ -#define PNG_FORMAT_FLAG_COLORMAP 0x08U /* image data is color-mapped */ - -#ifdef PNG_FORMAT_BGR_SUPPORTED -# define PNG_FORMAT_FLAG_BGR 0x10U /* BGR colors, else order is RGB */ -#endif - -#ifdef PNG_FORMAT_AFIRST_SUPPORTED -# define PNG_FORMAT_FLAG_AFIRST 0x20U /* alpha channel comes first */ -#endif - -/* Commonly used formats have predefined macros. - * - * First the single byte (sRGB) formats: - */ -#define PNG_FORMAT_GRAY 0 -#define PNG_FORMAT_GA PNG_FORMAT_FLAG_ALPHA -#define PNG_FORMAT_AG (PNG_FORMAT_GA|PNG_FORMAT_FLAG_AFIRST) -#define PNG_FORMAT_RGB PNG_FORMAT_FLAG_COLOR -#define PNG_FORMAT_BGR (PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_BGR) -#define PNG_FORMAT_RGBA (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_ALPHA) -#define PNG_FORMAT_ARGB (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_AFIRST) -#define PNG_FORMAT_BGRA (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_ALPHA) -#define PNG_FORMAT_ABGR (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_AFIRST) - -/* Then the linear 2-byte formats. When naming these "Y" is used to - * indicate a luminance (gray) channel. - */ -#define PNG_FORMAT_LINEAR_Y PNG_FORMAT_FLAG_LINEAR -#define PNG_FORMAT_LINEAR_Y_ALPHA (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_ALPHA) -#define PNG_FORMAT_LINEAR_RGB (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR) -#define PNG_FORMAT_LINEAR_RGB_ALPHA \ - (PNG_FORMAT_FLAG_LINEAR|PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA) - -/* With color-mapped formats the image data is one byte for each pixel, the byte - * is an index into the color-map which is formatted as above. To obtain a - * color-mapped format it is sufficient just to add the PNG_FOMAT_FLAG_COLORMAP - * to one of the above definitions, or you can use one of the definitions below. - */ -#define PNG_FORMAT_RGB_COLORMAP (PNG_FORMAT_RGB|PNG_FORMAT_FLAG_COLORMAP) -#define PNG_FORMAT_BGR_COLORMAP (PNG_FORMAT_BGR|PNG_FORMAT_FLAG_COLORMAP) -#define PNG_FORMAT_RGBA_COLORMAP (PNG_FORMAT_RGBA|PNG_FORMAT_FLAG_COLORMAP) -#define PNG_FORMAT_ARGB_COLORMAP (PNG_FORMAT_ARGB|PNG_FORMAT_FLAG_COLORMAP) -#define PNG_FORMAT_BGRA_COLORMAP (PNG_FORMAT_BGRA|PNG_FORMAT_FLAG_COLORMAP) -#define PNG_FORMAT_ABGR_COLORMAP (PNG_FORMAT_ABGR|PNG_FORMAT_FLAG_COLORMAP) - -/* PNG_IMAGE macros - * - * These are convenience macros to derive information from a png_image - * structure. The PNG_IMAGE_SAMPLE_ macros return values appropriate to the - * actual image sample values - either the entries in the color-map or the - * pixels in the image. The PNG_IMAGE_PIXEL_ macros return corresponding values - * for the pixels and will always return 1 for color-mapped formats. The - * remaining macros return information about the rows in the image and the - * complete image. - * - * NOTE: All the macros that take a png_image::format parameter are compile time - * constants if the format parameter is, itself, a constant. Therefore these - * macros can be used in array declarations and case labels where required. - * Similarly the macros are also pre-processor constants (sizeof is not used) so - * they can be used in #if tests. - * - * First the information about the samples. - */ -#define PNG_IMAGE_SAMPLE_CHANNELS(fmt)\ - (((fmt)&(PNG_FORMAT_FLAG_COLOR|PNG_FORMAT_FLAG_ALPHA))+1) - /* Return the total number of channels in a given format: 1..4 */ - -#define PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)\ - ((((fmt) & PNG_FORMAT_FLAG_LINEAR) >> 2)+1) - /* Return the size in bytes of a single component of a pixel or color-map - * entry (as appropriate) in the image: 1 or 2. - */ - -#define PNG_IMAGE_SAMPLE_SIZE(fmt)\ - (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * PNG_IMAGE_SAMPLE_COMPONENT_SIZE(fmt)) - /* This is the size of the sample data for one sample. If the image is - * color-mapped it is the size of one color-map entry (and image pixels are - * one byte in size), otherwise it is the size of one image pixel. - */ - -#define PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(fmt)\ - (PNG_IMAGE_SAMPLE_CHANNELS(fmt) * 256) - /* The maximum size of the color-map required by the format expressed in a - * count of components. This can be used to compile-time allocate a - * color-map: - * - * png_uint_16 colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(linear_fmt)]; - * - * png_byte colormap[PNG_IMAGE_MAXIMUM_COLORMAP_COMPONENTS(sRGB_fmt)]; - * - * Alternatively use the PNG_IMAGE_COLORMAP_SIZE macro below to use the - * information from one of the png_image_begin_read_ APIs and dynamically - * allocate the required memory. - */ - -/* Corresponding information about the pixels */ -#define PNG_IMAGE_PIXEL_(test,fmt)\ - (((fmt)&PNG_FORMAT_FLAG_COLORMAP)?1:test(fmt)) - -#define PNG_IMAGE_PIXEL_CHANNELS(fmt)\ - PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_CHANNELS,fmt) - /* The number of separate channels (components) in a pixel; 1 for a - * color-mapped image. - */ - -#define PNG_IMAGE_PIXEL_COMPONENT_SIZE(fmt)\ - PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_COMPONENT_SIZE,fmt) - /* The size, in bytes, of each component in a pixel; 1 for a color-mapped - * image. - */ - -#define PNG_IMAGE_PIXEL_SIZE(fmt) PNG_IMAGE_PIXEL_(PNG_IMAGE_SAMPLE_SIZE,fmt) - /* The size, in bytes, of a complete pixel; 1 for a color-mapped image. */ - -/* Information about the whole row, or whole image */ -#define PNG_IMAGE_ROW_STRIDE(image)\ - (PNG_IMAGE_PIXEL_CHANNELS((image).format) * (image).width) - /* Return the total number of components in a single row of the image; this - * is the minimum 'row stride', the minimum count of components between each - * row. For a color-mapped image this is the minimum number of bytes in a - * row. - */ - -#define PNG_IMAGE_BUFFER_SIZE(image, row_stride)\ - (PNG_IMAGE_PIXEL_COMPONENT_SIZE((image).format)*(image).height*(row_stride)) - /* Return the size, in bytes, of an image buffer given a png_image and a row - * stride - the number of components to leave space for in each row. - */ - -#define PNG_IMAGE_SIZE(image)\ - PNG_IMAGE_BUFFER_SIZE(image, PNG_IMAGE_ROW_STRIDE(image)) - /* Return the size, in bytes, of the image in memory given just a png_image; - * the row stride is the minimum stride required for the image. - */ - -#define PNG_IMAGE_COLORMAP_SIZE(image)\ - (PNG_IMAGE_SAMPLE_SIZE((image).format) * (image).colormap_entries) - /* Return the size, in bytes, of the color-map of this image. If the image - * format is not a color-map format this will return a size sufficient for - * 256 entries in the given format; check PNG_FORMAT_FLAG_COLORMAP if - * you don't want to allocate a color-map in this case. - */ - -/* PNG_IMAGE_FLAG_* - * - * Flags containing additional information about the image are held in the - * 'flags' field of png_image. - */ -#define PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB 0x01 - /* This indicates the the RGB values of the in-memory bitmap do not - * correspond to the red, green and blue end-points defined by sRGB. - */ - -#define PNG_IMAGE_FLAG_FAST 0x02 - /* On write emphasise speed over compression; the resultant PNG file will be - * larger but will be produced significantly faster, particular for large - * images. Do not use this option for images which will be distributed, only - * used it when producing intermediate files that will be read back in - * repeatedly. For a typical 24-bit image the option will double the read - * speed at the cost of increasing the image size by 25%, however for many - * more compressible images the PNG file can be 10 times larger with only a - * slight speed gain. - */ - -#define PNG_IMAGE_FLAG_16BIT_sRGB 0x04 - /* On read if the image is a 16-bit per component image and there is no gAMA - * or sRGB chunk assume that the components are sRGB encoded. Notice that - * images output by the simplified API always have gamma information; setting - * this flag only affects the interpretation of 16-bit images from an - * external source. It is recommended that the application expose this flag - * to the user; the user can normally easily recognize the difference between - * linear and sRGB encoding. This flag has no effect on write - the data - * passed to the write APIs must have the correct encoding (as defined - * above.) - * - * If the flag is not set (the default) input 16-bit per component data is - * assumed to be linear. - * - * NOTE: the flag can only be set after the png_image_begin_read_ call, - * because that call initializes the 'flags' field. - */ - -#ifdef PNG_SIMPLIFIED_READ_SUPPORTED -/* READ APIs - * --------- - * - * The png_image passed to the read APIs must have been initialized by setting - * the png_controlp field 'opaque' to NULL (or, safer, memset the whole thing.) - */ -#ifdef PNG_STDIO_SUPPORTED -PNG_EXPORT(234, int, png_image_begin_read_from_file, (png_imagep image, - const char *file_name)); - /* The named file is opened for read and the image header is filled in - * from the PNG header in the file. - */ - -PNG_EXPORT(235, int, png_image_begin_read_from_stdio, (png_imagep image, - FILE* file)); - /* The PNG header is read from the stdio FILE object. */ -#endif /* PNG_STDIO_SUPPORTED */ - -PNG_EXPORT(236, int, png_image_begin_read_from_memory, (png_imagep image, - png_const_voidp memory, png_size_t size)); - /* The PNG header is read from the given memory buffer. */ - -PNG_EXPORT(237, int, png_image_finish_read, (png_imagep image, - png_const_colorp background, void *buffer, png_int_32 row_stride, - void *colormap)); - /* Finish reading the image into the supplied buffer and clean up the - * png_image structure. - * - * row_stride is the step, in byte or 2-byte units as appropriate, - * between adjacent rows. A positive stride indicates that the top-most row - * is first in the buffer - the normal top-down arrangement. A negative - * stride indicates that the bottom-most row is first in the buffer. - * - * background need only be supplied if an alpha channel must be removed from - * a png_byte format and the removal is to be done by compositing on a solid - * color; otherwise it may be NULL and any composition will be done directly - * onto the buffer. The value is an sRGB color to use for the background, - * for grayscale output the green channel is used. - * - * background must be supplied when an alpha channel must be removed from a - * single byte color-mapped output format, in other words if: - * - * 1) The original format from png_image_begin_read_from_* had - * PNG_FORMAT_FLAG_ALPHA set. - * 2) The format set by the application does not. - * 3) The format set by the application has PNG_FORMAT_FLAG_COLORMAP set and - * PNG_FORMAT_FLAG_LINEAR *not* set. - * - * For linear output removing the alpha channel is always done by compositing - * on black and background is ignored. - * - * colormap must be supplied when PNG_FORMAT_FLAG_COLORMAP is set. It must - * be at least the size (in bytes) returned by PNG_IMAGE_COLORMAP_SIZE. - * image->colormap_entries will be updated to the actual number of entries - * written to the colormap; this may be less than the original value. - */ - -PNG_EXPORT(238, void, png_image_free, (png_imagep image)); - /* Free any data allocated by libpng in image->opaque, setting the pointer to - * NULL. May be called at any time after the structure is initialized. - */ -#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */ - -#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED -#ifdef PNG_STDIO_SUPPORTED -/* WRITE APIS - * ---------- - * For write you must initialize a png_image structure to describe the image to - * be written. To do this use memset to set the whole structure to 0 then - * initialize fields describing your image. - * - * version: must be set to PNG_IMAGE_VERSION - * opaque: must be initialized to NULL - * width: image width in pixels - * height: image height in rows - * format: the format of the data (image and color-map) you wish to write - * flags: set to 0 unless one of the defined flags applies; set - * PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB for color format images where the RGB - * values do not correspond to the colors in sRGB. - * colormap_entries: set to the number of entries in the color-map (0 to 256) - */ -PNG_EXPORT(239, int, png_image_write_to_file, (png_imagep image, - const char *file, int convert_to_8bit, const void *buffer, - png_int_32 row_stride, const void *colormap)); - /* Write the image to the named file. */ - -PNG_EXPORT(240, int, png_image_write_to_stdio, (png_imagep image, FILE *file, - int convert_to_8_bit, const void *buffer, png_int_32 row_stride, - const void *colormap)); - /* Write the image to the given (FILE*). */ - -/* With both write APIs if image is in one of the linear formats with 16-bit - * data then setting convert_to_8_bit will cause the output to be an 8-bit PNG - * gamma encoded according to the sRGB specification, otherwise a 16-bit linear - * encoded PNG file is written. - * - * With color-mapped data formats the colormap parameter point to a color-map - * with at least image->colormap_entries encoded in the specified format. If - * the format is linear the written PNG color-map will be converted to sRGB - * regardless of the convert_to_8_bit flag. - * - * With all APIs row_stride is handled as in the read APIs - it is the spacing - * from one row to the next in component sized units (1 or 2 bytes) and if - * negative indicates a bottom-up row layout in the buffer. - * - * Note that the write API does not support interlacing or sub-8-bit pixels. - */ -#endif /* PNG_STDIO_SUPPORTED */ -#endif /* PNG_SIMPLIFIED_WRITE_SUPPORTED */ -/******************************************************************************* - * END OF SIMPLIFIED API - ******************************************************************************/ - -#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED -PNG_EXPORT(242, void, png_set_check_for_invalid_index, - (png_structrp png_ptr, int allowed)); -# ifdef PNG_GET_PALETTE_MAX_SUPPORTED -PNG_EXPORT(243, int, png_get_palette_max, (png_const_structp png_ptr, - png_const_infop info_ptr)); -# endif -#endif /* CHECK_FOR_INVALID_INDEX */ - -/******************************************************************************* - * IMPLEMENTATION OPTIONS - ******************************************************************************* - * - * Support for arbitrary implementation-specific optimizations. The API allows - * particular options to be turned on or off. 'Option' is the number of the - * option and 'onoff' is 0 (off) or non-0 (on). The value returned is given - * by the PNG_OPTION_ defines below. - * - * HARDWARE: normally hardware capabilites, such as the Intel SSE instructions, - * are detected at run time, however sometimes it may be impossible - * to do this in user mode, in which case it is necessary to discover - * the capabilities in an OS specific way. Such capabilities are - * listed here when libpng has support for them and must be turned - * ON by the application if present. - * - * SOFTWARE: sometimes software optimizations actually result in performance - * decrease on some architectures or systems, or with some sets of - * PNG images. 'Software' options allow such optimizations to be - * selected at run time. - */ -#ifdef PNG_SET_OPTION_SUPPORTED -#ifdef PNG_ARM_NEON_API_SUPPORTED -# define PNG_ARM_NEON 0 /* HARDWARE: ARM Neon SIMD instructions supported */ -#endif -#define PNG_MAXIMUM_INFLATE_WINDOW 2 /* SOFTWARE: force maximum window */ -#define PNG_SKIP_sRGB_CHECK_PROFILE 4 /* SOFTWARE: Check ICC profile for sRGB */ -#define PNG_OPTION_NEXT 6 /* Next option - numbers must be even */ - -/* Return values: NOTE: there are four values and 'off' is *not* zero */ -#define PNG_OPTION_UNSET 0 /* Unset - defaults to off */ -#define PNG_OPTION_INVALID 1 /* Option number out of range */ -#define PNG_OPTION_OFF 2 -#define PNG_OPTION_ON 3 - -PNG_EXPORT(244, int, png_set_option, (png_structrp png_ptr, int option, - int onoff)); -#endif - -/******************************************************************************* - * END OF HARDWARE AND SOFTWARE OPTIONS - ******************************************************************************/ - -/* Maintainer: Put new public prototypes here ^, in libpng.3, and project - * defs, scripts/pnglibconf.h, and scripts/pnglibconf.h.prebuilt - */ - -/* The last ordinal number (this is the *last* one already used; the next - * one to use is one more than this.) Maintainer, remember to add an entry to - * scripts/symbols.def as well. - */ -#ifdef PNG_EXPORT_LAST_ORDINAL - PNG_EXPORT_LAST_ORDINAL(244); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* PNG_VERSION_INFO_ONLY */ -/* Do not put anything past this line */ -#endif /* PNG_H */ diff --git a/png/pngbar.jpg b/png/pngbar.jpg deleted file mode 100755 index 70ba8d8..0000000 Binary files a/png/pngbar.jpg and /dev/null differ diff --git a/png/pngbar.png b/png/pngbar.png deleted file mode 100755 index 49798c8..0000000 Binary files a/png/pngbar.png and /dev/null differ diff --git a/png/pngconf.h b/png/pngconf.h deleted file mode 100755 index 72ec81f..0000000 --- a/png/pngconf.h +++ /dev/null @@ -1,644 +0,0 @@ - -/* pngconf.h - machine configurable file for libpng - * - * libpng version 1.6.12 - June 12, 2014 - * - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - */ - -/* Any machine specific code is near the front of this file, so if you - * are configuring libpng for a machine, you may want to read the section - * starting here down to where it starts to typedef png_color, png_text, - * and png_info. - */ - -#ifndef PNGCONF_H -#define PNGCONF_H - -/* To do: Do all of this in scripts/pnglibconf.dfa */ -#ifdef PNG_SAFE_LIMITS_SUPPORTED -# ifdef PNG_USER_WIDTH_MAX -# undef PNG_USER_WIDTH_MAX -# define PNG_USER_WIDTH_MAX 1000000L -# endif -# ifdef PNG_USER_HEIGHT_MAX -# undef PNG_USER_HEIGHT_MAX -# define PNG_USER_HEIGHT_MAX 1000000L -# endif -# ifdef PNG_USER_CHUNK_MALLOC_MAX -# undef PNG_USER_CHUNK_MALLOC_MAX -# define PNG_USER_CHUNK_MALLOC_MAX 4000000L -# endif -# ifdef PNG_USER_CHUNK_CACHE_MAX -# undef PNG_USER_CHUNK_CACHE_MAX -# define PNG_USER_CHUNK_CACHE_MAX 128 -# endif -#endif - -#ifndef PNG_BUILDING_SYMBOL_TABLE /* else includes may cause problems */ - -/* From libpng 1.6.0 libpng requires an ANSI X3.159-1989 ("ISOC90") compliant C - * compiler for correct compilation. The following header files are required by - * the standard. If your compiler doesn't provide these header files, or they - * do not match the standard, you will need to provide/improve them. - */ -#include -#include - -/* Library header files. These header files are all defined by ISOC90; libpng - * expects conformant implementations, however, an ISOC90 conformant system need - * not provide these header files if the functionality cannot be implemented. - * In this case it will be necessary to disable the relevant parts of libpng in - * the build of pnglibconf.h. - * - * Prior to 1.6.0 string.h was included here; the API changes in 1.6.0 to not - * include this unnecessary header file. - */ - -#ifdef PNG_STDIO_SUPPORTED - /* Required for the definition of FILE: */ -# include -#endif - -#ifdef PNG_SETJMP_SUPPORTED - /* Required for the definition of jmp_buf and the declaration of longjmp: */ -# include -#endif - -#ifdef PNG_CONVERT_tIME_SUPPORTED - /* Required for struct tm: */ -# include -#endif - -#endif /* PNG_BUILDING_SYMBOL_TABLE */ - -/* Prior to 1.6.0 it was possible to turn off 'const' in declarations using - * PNG_NO_CONST; this is no longer supported except for data declarations which - * apparently still cause problems in 2011 on some compilers. - */ -#define PNG_CONST const /* backward compatibility only */ - -/* This controls optimization of the reading of 16 and 32 bit values - * from PNG files. It can be set on a per-app-file basis - it - * just changes whether a macro is used when the function is called. - * The library builder sets the default; if read functions are not - * built into the library the macro implementation is forced on. - */ -#ifndef PNG_READ_INT_FUNCTIONS_SUPPORTED -# define PNG_USE_READ_MACROS -#endif -#if !defined(PNG_NO_USE_READ_MACROS) && !defined(PNG_USE_READ_MACROS) -# if PNG_DEFAULT_READ_MACROS -# define PNG_USE_READ_MACROS -# endif -#endif - -/* COMPILER SPECIFIC OPTIONS. - * - * These options are provided so that a variety of difficult compilers - * can be used. Some are fixed at build time (e.g. PNG_API_RULE - * below) but still have compiler specific implementations, others - * may be changed on a per-file basis when compiling against libpng. - */ - -/* The PNGARG macro was used in versions of libpng prior to 1.6.0 to protect - * against legacy (pre ISOC90) compilers that did not understand function - * prototypes. It is not required for modern C compilers. - */ -#ifndef PNGARG -# define PNGARG(arglist) arglist -#endif - -/* Function calling conventions. - * ============================= - * Normally it is not necessary to specify to the compiler how to call - * a function - it just does it - however on x86 systems derived from - * Microsoft and Borland C compilers ('IBM PC', 'DOS', 'Windows' systems - * and some others) there are multiple ways to call a function and the - * default can be changed on the compiler command line. For this reason - * libpng specifies the calling convention of every exported function and - * every function called via a user supplied function pointer. This is - * done in this file by defining the following macros: - * - * PNGAPI Calling convention for exported functions. - * PNGCBAPI Calling convention for user provided (callback) functions. - * PNGCAPI Calling convention used by the ANSI-C library (required - * for longjmp callbacks and sometimes used internally to - * specify the calling convention for zlib). - * - * These macros should never be overridden. If it is necessary to - * change calling convention in a private build this can be done - * by setting PNG_API_RULE (which defaults to 0) to one of the values - * below to select the correct 'API' variants. - * - * PNG_API_RULE=0 Use PNGCAPI - the 'C' calling convention - throughout. - * This is correct in every known environment. - * PNG_API_RULE=1 Use the operating system convention for PNGAPI and - * the 'C' calling convention (from PNGCAPI) for - * callbacks (PNGCBAPI). This is no longer required - * in any known environment - if it has to be used - * please post an explanation of the problem to the - * libpng mailing list. - * - * These cases only differ if the operating system does not use the C - * calling convention, at present this just means the above cases - * (x86 DOS/Windows sytems) and, even then, this does not apply to - * Cygwin running on those systems. - * - * Note that the value must be defined in pnglibconf.h so that what - * the application uses to call the library matches the conventions - * set when building the library. - */ - -/* Symbol export - * ============= - * When building a shared library it is almost always necessary to tell - * the compiler which symbols to export. The png.h macro 'PNG_EXPORT' - * is used to mark the symbols. On some systems these symbols can be - * extracted at link time and need no special processing by the compiler, - * on other systems the symbols are flagged by the compiler and just - * the declaration requires a special tag applied (unfortunately) in a - * compiler dependent way. Some systems can do either. - * - * A small number of older systems also require a symbol from a DLL to - * be flagged to the program that calls it. This is a problem because - * we do not know in the header file included by application code that - * the symbol will come from a shared library, as opposed to a statically - * linked one. For this reason the application must tell us by setting - * the magic flag PNG_USE_DLL to turn on the special processing before - * it includes png.h. - * - * Four additional macros are used to make this happen: - * - * PNG_IMPEXP The magic (if any) to cause a symbol to be exported from - * the build or imported if PNG_USE_DLL is set - compiler - * and system specific. - * - * PNG_EXPORT_TYPE(type) A macro that pre or appends PNG_IMPEXP to - * 'type', compiler specific. - * - * PNG_DLL_EXPORT Set to the magic to use during a libpng build to - * make a symbol exported from the DLL. Not used in the - * public header files; see pngpriv.h for how it is used - * in the libpng build. - * - * PNG_DLL_IMPORT Set to the magic to force the libpng symbols to come - * from a DLL - used to define PNG_IMPEXP when - * PNG_USE_DLL is set. - */ - -/* System specific discovery. - * ========================== - * This code is used at build time to find PNG_IMPEXP, the API settings - * and PNG_EXPORT_TYPE(), it may also set a macro to indicate the DLL - * import processing is possible. On Windows systems it also sets - * compiler-specific macros to the values required to change the calling - * conventions of the various functions. - */ -#if defined(_Windows) || defined(_WINDOWS) || defined(WIN32) ||\ - defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) - /* Windows system (DOS doesn't support DLLs). Includes builds under Cygwin or - * MinGW on any architecture currently supported by Windows. Also includes - * Watcom builds but these need special treatment because they are not - * compatible with GCC or Visual C because of different calling conventions. - */ -# if PNG_API_RULE == 2 - /* If this line results in an error, either because __watcall is not - * understood or because of a redefine just below you cannot use *this* - * build of the library with the compiler you are using. *This* build was - * build using Watcom and applications must also be built using Watcom! - */ -# define PNGCAPI __watcall -# endif - -# if defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 800)) -# define PNGCAPI __cdecl -# if PNG_API_RULE == 1 - /* If this line results in an error __stdcall is not understood and - * PNG_API_RULE should not have been set to '1'. - */ -# define PNGAPI __stdcall -# endif -# else - /* An older compiler, or one not detected (erroneously) above, - * if necessary override on the command line to get the correct - * variants for the compiler. - */ -# ifndef PNGCAPI -# define PNGCAPI _cdecl -# endif -# if PNG_API_RULE == 1 && !defined(PNGAPI) -# define PNGAPI _stdcall -# endif -# endif /* compiler/api */ - - /* NOTE: PNGCBAPI always defaults to PNGCAPI. */ - -# if defined(PNGAPI) && !defined(PNG_USER_PRIVATEBUILD) -# error "PNG_USER_PRIVATEBUILD must be defined if PNGAPI is changed" -# endif - -# if (defined(_MSC_VER) && _MSC_VER < 800) ||\ - (defined(__BORLANDC__) && __BORLANDC__ < 0x500) - /* older Borland and MSC - * compilers used '__export' and required this to be after - * the type. - */ -# ifndef PNG_EXPORT_TYPE -# define PNG_EXPORT_TYPE(type) type PNG_IMPEXP -# endif -# define PNG_DLL_EXPORT __export -# else /* newer compiler */ -# define PNG_DLL_EXPORT __declspec(dllexport) -# ifndef PNG_DLL_IMPORT -# define PNG_DLL_IMPORT __declspec(dllimport) -# endif -# endif /* compiler */ - -#else /* !Windows */ -# if (defined(__IBMC__) || defined(__IBMCPP__)) && defined(__OS2__) -# define PNGAPI _System -# else /* !Windows/x86 && !OS/2 */ - /* Use the defaults, or define PNG*API on the command line (but - * this will have to be done for every compile!) - */ -# endif /* other system, !OS/2 */ -#endif /* !Windows/x86 */ - -/* Now do all the defaulting . */ -#ifndef PNGCAPI -# define PNGCAPI -#endif -#ifndef PNGCBAPI -# define PNGCBAPI PNGCAPI -#endif -#ifndef PNGAPI -# define PNGAPI PNGCAPI -#endif - -/* PNG_IMPEXP may be set on the compilation system command line or (if not set) - * then in an internal header file when building the library, otherwise (when - * using the library) it is set here. - */ -#ifndef PNG_IMPEXP -# if defined(PNG_USE_DLL) && defined(PNG_DLL_IMPORT) - /* This forces use of a DLL, disallowing static linking */ -# define PNG_IMPEXP PNG_DLL_IMPORT -# endif - -# ifndef PNG_IMPEXP -# define PNG_IMPEXP -# endif -#endif - -/* In 1.5.2 the definition of PNG_FUNCTION has been changed to always treat - * 'attributes' as a storage class - the attributes go at the start of the - * function definition, and attributes are always appended regardless of the - * compiler. This considerably simplifies these macros but may cause problems - * if any compilers both need function attributes and fail to handle them as - * a storage class (this is unlikely.) - */ -#ifndef PNG_FUNCTION -# define PNG_FUNCTION(type, name, args, attributes) attributes type name args -#endif - -#ifndef PNG_EXPORT_TYPE -# define PNG_EXPORT_TYPE(type) PNG_IMPEXP type -#endif - - /* The ordinal value is only relevant when preprocessing png.h for symbol - * table entries, so we discard it here. See the .dfn files in the - * scripts directory. - */ -#ifndef PNG_EXPORTA - -# define PNG_EXPORTA(ordinal, type, name, args, attributes)\ - PNG_FUNCTION(PNG_EXPORT_TYPE(type),(PNGAPI name),PNGARG(args), \ - extern attributes) -#endif - -/* ANSI-C (C90) does not permit a macro to be invoked with an empty argument, - * so make something non-empty to satisfy the requirement: - */ -#define PNG_EMPTY /*empty list*/ - -#define PNG_EXPORT(ordinal, type, name, args)\ - PNG_EXPORTA(ordinal, type, name, args, PNG_EMPTY) - -/* Use PNG_REMOVED to comment out a removed interface. */ -#ifndef PNG_REMOVED -# define PNG_REMOVED(ordinal, type, name, args, attributes) -#endif - -#ifndef PNG_CALLBACK -# define PNG_CALLBACK(type, name, args) type (PNGCBAPI name) PNGARG(args) -#endif - -/* Support for compiler specific function attributes. These are used - * so that where compiler support is available incorrect use of API - * functions in png.h will generate compiler warnings. - * - * Added at libpng-1.2.41. - */ - -#ifndef PNG_NO_PEDANTIC_WARNINGS -# ifndef PNG_PEDANTIC_WARNINGS_SUPPORTED -# define PNG_PEDANTIC_WARNINGS_SUPPORTED -# endif -#endif - -#ifdef PNG_PEDANTIC_WARNINGS_SUPPORTED - /* Support for compiler specific function attributes. These are used - * so that where compiler support is available, incorrect use of API - * functions in png.h will generate compiler warnings. Added at libpng - * version 1.2.41. Disabling these removes the warnings but may also produce - * less efficient code. - */ -# if defined(__clang__) && defined(__has_attribute) - /* Clang defines both __clang__ and __GNUC__. Check __clang__ first. */ -# if !defined(PNG_USE_RESULT) && __has_attribute(__warn_unused_result__) -# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) -# endif -# if !defined(PNG_NORETURN) && __has_attribute(__noreturn__) -# define PNG_NORETURN __attribute__((__noreturn__)) -# endif -# if !defined(PNG_ALLOCATED) && __has_attribute(__malloc__) -# define PNG_ALLOCATED __attribute__((__malloc__)) -# endif -# if !defined(PNG_DEPRECATED) && __has_attribute(__deprecated__) -# define PNG_DEPRECATED __attribute__((__deprecated__)) -# endif -# if !defined(PNG_PRIVATE) -# ifdef __has_extension -# if __has_extension(attribute_unavailable_with_message) -# define PNG_PRIVATE __attribute__((__unavailable__(\ - "This function is not exported by libpng."))) -# endif -# endif -# endif -# ifndef PNG_RESTRICT -# define PNG_RESTRICT __restrict -# endif - -# elif defined(__GNUC__) -# ifndef PNG_USE_RESULT -# define PNG_USE_RESULT __attribute__((__warn_unused_result__)) -# endif -# ifndef PNG_NORETURN -# define PNG_NORETURN __attribute__((__noreturn__)) -# endif -# if __GNUC__ >= 3 -# ifndef PNG_ALLOCATED -# define PNG_ALLOCATED __attribute__((__malloc__)) -# endif -# ifndef PNG_DEPRECATED -# define PNG_DEPRECATED __attribute__((__deprecated__)) -# endif -# ifndef PNG_PRIVATE -# if 0 /* Doesn't work so we use deprecated instead*/ -# define PNG_PRIVATE \ - __attribute__((warning("This function is not exported by libpng."))) -# else -# define PNG_PRIVATE \ - __attribute__((__deprecated__)) -# endif -# endif -# if ((__GNUC__ > 3) || !defined(__GNUC_MINOR__) || (__GNUC_MINOR__ >= 1)) -# ifndef PNG_RESTRICT -# define PNG_RESTRICT __restrict -# endif -# endif /* __GNUC__.__GNUC_MINOR__ > 3.0 */ -# endif /* __GNUC__ >= 3 */ - -# elif defined(_MSC_VER) && (_MSC_VER >= 1300) -# ifndef PNG_USE_RESULT -# define PNG_USE_RESULT /* not supported */ -# endif -# ifndef PNG_NORETURN -# define PNG_NORETURN __declspec(noreturn) -# endif -# ifndef PNG_ALLOCATED -# if (_MSC_VER >= 1400) -# define PNG_ALLOCATED __declspec(restrict) -# endif -# endif -# ifndef PNG_DEPRECATED -# define PNG_DEPRECATED __declspec(deprecated) -# endif -# ifndef PNG_PRIVATE -# define PNG_PRIVATE __declspec(deprecated) -# endif -# ifndef PNG_RESTRICT -# if (_MSC_VER >= 1400) -# define PNG_RESTRICT __restrict -# endif -# endif - -# elif defined(__WATCOMC__) -# ifndef PNG_RESTRICT -# define PNG_RESTRICT __restrict -# endif -# endif -#endif /* PNG_PEDANTIC_WARNINGS */ - -#ifndef PNG_DEPRECATED -# define PNG_DEPRECATED /* Use of this function is deprecated */ -#endif -#ifndef PNG_USE_RESULT -# define PNG_USE_RESULT /* The result of this function must be checked */ -#endif -#ifndef PNG_NORETURN -# define PNG_NORETURN /* This function does not return */ -#endif -#ifndef PNG_ALLOCATED -# define PNG_ALLOCATED /* The result of the function is new memory */ -#endif -#ifndef PNG_PRIVATE -# define PNG_PRIVATE /* This is a private libpng function */ -#endif -#ifndef PNG_RESTRICT -# define PNG_RESTRICT /* The C99 "restrict" feature */ -#endif - -#ifndef PNG_FP_EXPORT /* A floating point API. */ -# ifdef PNG_FLOATING_POINT_SUPPORTED -# define PNG_FP_EXPORT(ordinal, type, name, args)\ - PNG_EXPORT(ordinal, type, name, args); -# else /* No floating point APIs */ -# define PNG_FP_EXPORT(ordinal, type, name, args) -# endif -#endif -#ifndef PNG_FIXED_EXPORT /* A fixed point API. */ -# ifdef PNG_FIXED_POINT_SUPPORTED -# define PNG_FIXED_EXPORT(ordinal, type, name, args)\ - PNG_EXPORT(ordinal, type, name, args); -# else /* No fixed point APIs */ -# define PNG_FIXED_EXPORT(ordinal, type, name, args) -# endif -#endif - -#ifndef PNG_BUILDING_SYMBOL_TABLE -/* Some typedefs to get us started. These should be safe on most of the common - * platforms. - * - * png_uint_32 and png_int_32 may, currently, be larger than required to hold a - * 32-bit value however this is not normally advisable. - * - * png_uint_16 and png_int_16 should always be two bytes in size - this is - * verified at library build time. - * - * png_byte must always be one byte in size. - * - * The checks below use constants from limits.h, as defined by the ISOC90 - * standard. - */ -#if CHAR_BIT == 8 && UCHAR_MAX == 255 - typedef unsigned char png_byte; -#else -# error "libpng requires 8 bit bytes" -#endif - -#if INT_MIN == -32768 && INT_MAX == 32767 - typedef int png_int_16; -#elif SHRT_MIN == -32768 && SHRT_MAX == 32767 - typedef short png_int_16; -#else -# error "libpng requires a signed 16 bit type" -#endif - -#if UINT_MAX == 65535 - typedef unsigned int png_uint_16; -#elif USHRT_MAX == 65535 - typedef unsigned short png_uint_16; -#else -# error "libpng requires an unsigned 16 bit type" -#endif - -#if INT_MIN < -2147483646 && INT_MAX > 2147483646 - typedef int png_int_32; -#elif LONG_MIN < -2147483646 && LONG_MAX > 2147483646 - typedef long int png_int_32; -#else -# error "libpng requires a signed 32 bit (or more) type" -#endif - -#if UINT_MAX > 4294967294 - typedef unsigned int png_uint_32; -#elif ULONG_MAX > 4294967294 - typedef unsigned long int png_uint_32; -#else -# error "libpng requires an unsigned 32 bit (or more) type" -#endif - -/* Prior to 1.6.0 it was possible to disable the use of size_t, 1.6.0, however, - * requires an ISOC90 compiler and relies on consistent behavior of sizeof. - */ -typedef size_t png_size_t; -typedef ptrdiff_t png_ptrdiff_t; - -/* libpng needs to know the maximum value of 'size_t' and this controls the - * definition of png_alloc_size_t, below. This maximum value of size_t limits - * but does not control the maximum allocations the library makes - there is - * direct application control of this through png_set_user_limits(). - */ -#ifndef PNG_SMALL_SIZE_T - /* Compiler specific tests for systems where size_t is known to be less than - * 32 bits (some of these systems may no longer work because of the lack of - * 'far' support; see above.) - */ -# if (defined(__TURBOC__) && !defined(__FLAT__)) ||\ - (defined(_MSC_VER) && defined(MAXSEG_64K)) -# define PNG_SMALL_SIZE_T -# endif -#endif - -/* png_alloc_size_t is guaranteed to be no smaller than png_size_t, and no - * smaller than png_uint_32. Casts from png_size_t or png_uint_32 to - * png_alloc_size_t are not necessary; in fact, it is recommended not to use - * them at all so that the compiler can complain when something turns out to be - * problematic. - * - * Casts in the other direction (from png_alloc_size_t to png_size_t or - * png_uint_32) should be explicitly applied; however, we do not expect to - * encounter practical situations that require such conversions. - * - * PNG_SMALL_SIZE_T must be defined if the maximum value of size_t is less than - * 4294967295 - i.e. less than the maximum value of png_uint_32. - */ -#ifdef PNG_SMALL_SIZE_T - typedef png_uint_32 png_alloc_size_t; -#else - typedef png_size_t png_alloc_size_t; -#endif - -/* Prior to 1.6.0 libpng offered limited support for Microsoft C compiler - * implementations of Intel CPU specific support of user-mode segmented address - * spaces, where 16-bit pointers address more than 65536 bytes of memory using - * separate 'segment' registers. The implementation requires two different - * types of pointer (only one of which includes the segment value.) - * - * If required this support is available in version 1.2 of libpng and may be - * available in versions through 1.5, although the correctness of the code has - * not been verified recently. - */ - -/* Typedef for floating-point numbers that are converted to fixed-point with a - * multiple of 100,000, e.g., gamma - */ -typedef png_int_32 png_fixed_point; - -/* Add typedefs for pointers */ -typedef void * png_voidp; -typedef const void * png_const_voidp; -typedef png_byte * png_bytep; -typedef const png_byte * png_const_bytep; -typedef png_uint_32 * png_uint_32p; -typedef const png_uint_32 * png_const_uint_32p; -typedef png_int_32 * png_int_32p; -typedef const png_int_32 * png_const_int_32p; -typedef png_uint_16 * png_uint_16p; -typedef const png_uint_16 * png_const_uint_16p; -typedef png_int_16 * png_int_16p; -typedef const png_int_16 * png_const_int_16p; -typedef char * png_charp; -typedef const char * png_const_charp; -typedef png_fixed_point * png_fixed_point_p; -typedef const png_fixed_point * png_const_fixed_point_p; -typedef png_size_t * png_size_tp; -typedef const png_size_t * png_const_size_tp; - -#ifdef PNG_STDIO_SUPPORTED -typedef FILE * png_FILE_p; -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double * png_doublep; -typedef const double * png_const_doublep; -#endif - -/* Pointers to pointers; i.e. arrays */ -typedef png_byte * * png_bytepp; -typedef png_uint_32 * * png_uint_32pp; -typedef png_int_32 * * png_int_32pp; -typedef png_uint_16 * * png_uint_16pp; -typedef png_int_16 * * png_int_16pp; -typedef const char * * png_const_charpp; -typedef char * * png_charpp; -typedef png_fixed_point * * png_fixed_point_pp; -#ifdef PNG_FLOATING_POINT_SUPPORTED -typedef double * * png_doublepp; -#endif - -/* Pointers to pointers to pointers; i.e., pointer to array */ -typedef char * * * png_charppp; - -#endif /* PNG_BUILDING_SYMBOL_TABLE */ - -#endif /* PNGCONF_H */ diff --git a/png/pngdebug.h b/png/pngdebug.h deleted file mode 100755 index b43c59c..0000000 --- a/png/pngdebug.h +++ /dev/null @@ -1,154 +0,0 @@ - -/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c - * - * Copyright (c) 1998-2013 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Last changed in libpng 1.6.8 [December 19, 2013] - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -/* Define PNG_DEBUG at compile time for debugging information. Higher - * numbers for PNG_DEBUG mean more debugging information. This has - * only been added since version 0.95 so it is not implemented throughout - * libpng yet, but more support will be added as needed. - * - * png_debug[1-2]?(level, message ,arg{0-2}) - * Expands to a statement (either a simple expression or a compound - * do..while(0) statement) that outputs a message with parameter - * substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG - * is undefined, 0 or 1 every png_debug expands to a simple expression - * (actually ((void)0)). - * - * level: level of detail of message, starting at 0. A level 'n' - * message is preceded by 'n' 3-space indentations (not implemented - * on Microsoft compilers unless PNG_DEBUG_FILE is also - * defined, to allow debug DLL compilation with no standard IO). - * message: a printf(3) style text string. A trailing '\n' is added - * to the message. - * arg: 0 to 2 arguments for printf(3) style substitution in message. - */ -#ifndef PNGDEBUG_H -#define PNGDEBUG_H -/* These settings control the formatting of messages in png.c and pngerror.c */ -/* Moved to pngdebug.h at 1.5.0 */ -# ifndef PNG_LITERAL_SHARP -# define PNG_LITERAL_SHARP 0x23 -# endif -# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET -# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b -# endif -# ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET -# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d -# endif -# ifndef PNG_STRING_NEWLINE -# define PNG_STRING_NEWLINE "\n" -# endif - -#ifdef PNG_DEBUG -# if (PNG_DEBUG > 0) -# if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) -# include -# if (PNG_DEBUG > 1) -# ifndef _DEBUG -# define _DEBUG -# endif -# ifndef png_debug -# define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) -# endif -# ifndef png_debug1 -# define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) -# endif -# ifndef png_debug2 -# define png_debug2(l,m,p1,p2) \ - _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) -# endif -# endif -# else /* PNG_DEBUG_FILE || !_MSC_VER */ -# ifndef PNG_STDIO_SUPPORTED -# include /* not included yet */ -# endif -# ifndef PNG_DEBUG_FILE -# define PNG_DEBUG_FILE stderr -# endif /* PNG_DEBUG_FILE */ - -# if (PNG_DEBUG > 1) -# ifdef __STDC__ -# ifndef png_debug -# define png_debug(l,m) \ - do { \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ - (num_tabs==2 ? " " : (num_tabs>2 ? " " : "")))); \ - } while (0) -# endif -# ifndef png_debug1 -# define png_debug1(l,m,p1) \ - do { \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ - (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1); \ - } while (0) -# endif -# ifndef png_debug2 -# define png_debug2(l,m,p1,p2) \ - do { \ - int num_tabs=l; \ - fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ - (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1,p2);\ - } while (0) -# endif -# else /* __STDC __ */ -# ifndef png_debug -# define png_debug(l,m) \ - do { \ - int num_tabs=l; \ - char format[256]; \ - snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ - m,PNG_STRING_NEWLINE); \ - fprintf(PNG_DEBUG_FILE,format); \ - } while (0) -# endif -# ifndef png_debug1 -# define png_debug1(l,m,p1) \ - do { \ - int num_tabs=l; \ - char format[256]; \ - snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ - m,PNG_STRING_NEWLINE); \ - fprintf(PNG_DEBUG_FILE,format,p1); \ - } while (0) -# endif -# ifndef png_debug2 -# define png_debug2(l,m,p1,p2) \ - do { \ - int num_tabs=l; \ - char format[256]; \ - snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ - (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ - m,PNG_STRING_NEWLINE); \ - fprintf(PNG_DEBUG_FILE,format,p1,p2); \ - } while (0) -# endif -# endif /* __STDC __ */ -# endif /* (PNG_DEBUG > 1) */ - -# endif /* _MSC_VER */ -# endif /* (PNG_DEBUG > 0) */ -#endif /* PNG_DEBUG */ -#ifndef png_debug -# define png_debug(l, m) ((void)0) -#endif -#ifndef png_debug1 -# define png_debug1(l, m, p1) ((void)0) -#endif -#ifndef png_debug2 -# define png_debug2(l, m, p1, p2) ((void)0) -#endif -#endif /* PNGDEBUG_H */ diff --git a/png/pngerror.c b/png/pngerror.c deleted file mode 100755 index f21f4dd..0000000 --- a/png/pngerror.c +++ /dev/null @@ -1,961 +0,0 @@ - -/* pngerror.c - stub functions for i/o and memory allocation - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file provides a location for all error handling. Users who - * need special error handling are expected to write replacement functions - * and use png_set_error_fn() to use those functions. See the instructions - * at each function. - */ - -#include "pngpriv.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -static PNG_FUNCTION(void, png_default_error,PNGARG((png_const_structrp png_ptr, - png_const_charp error_message)),PNG_NORETURN); - -#ifdef PNG_WARNINGS_SUPPORTED -static void /* PRIVATE */ -png_default_warning PNGARG((png_const_structrp png_ptr, - png_const_charp warning_message)); -#endif /* PNG_WARNINGS_SUPPORTED */ - -/* This function is called whenever there is a fatal error. This function - * should not be changed. If there is a need to handle errors differently, - * you should supply a replacement error function and use png_set_error_fn() - * to replace the error function at run-time. - */ -#ifdef PNG_ERROR_TEXT_SUPPORTED -PNG_FUNCTION(void,PNGAPI -png_error,(png_const_structrp png_ptr, png_const_charp error_message), - PNG_NORETURN) -{ -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - char msg[16]; - if (png_ptr != NULL) - { - if (png_ptr->flags& - (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) - { - if (*error_message == PNG_LITERAL_SHARP) - { - /* Strip "#nnnn " from beginning of error message. */ - int offset; - for (offset = 1; offset<15; offset++) - if (error_message[offset] == ' ') - break; - - if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) - { - int i; - for (i = 0; i < offset - 1; i++) - msg[i] = error_message[i + 1]; - msg[i - 1] = '\0'; - error_message = msg; - } - - else - error_message += offset; - } - - else - { - if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) - { - msg[0] = '0'; - msg[1] = '\0'; - error_message = msg; - } - } - } - } -#endif - if (png_ptr != NULL && png_ptr->error_fn != NULL) - (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr), - error_message); - - /* If the custom handler doesn't exist, or if it returns, - use the default handler, which will not return. */ - png_default_error(png_ptr, error_message); -} -#else -PNG_FUNCTION(void,PNGAPI -png_err,(png_const_structrp png_ptr),PNG_NORETURN) -{ - /* Prior to 1.5.2 the error_fn received a NULL pointer, expressed - * erroneously as '\0', instead of the empty string "". This was - * apparently an error, introduced in libpng-1.2.20, and png_default_error - * will crash in this case. - */ - if (png_ptr != NULL && png_ptr->error_fn != NULL) - (*(png_ptr->error_fn))(png_constcast(png_structrp,png_ptr), ""); - - /* If the custom handler doesn't exist, or if it returns, - use the default handler, which will not return. */ - png_default_error(png_ptr, ""); -} -#endif /* PNG_ERROR_TEXT_SUPPORTED */ - -/* Utility to safely appends strings to a buffer. This never errors out so - * error checking is not required in the caller. - */ -size_t -png_safecat(png_charp buffer, size_t bufsize, size_t pos, - png_const_charp string) -{ - if (buffer != NULL && pos < bufsize) - { - if (string != NULL) - while (*string != '\0' && pos < bufsize-1) - buffer[pos++] = *string++; - - buffer[pos] = '\0'; - } - - return pos; -} - -#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED) -/* Utility to dump an unsigned value into a buffer, given a start pointer and - * and end pointer (which should point just *beyond* the end of the buffer!) - * Returns the pointer to the start of the formatted string. - */ -png_charp -png_format_number(png_const_charp start, png_charp end, int format, - png_alloc_size_t number) -{ - int count = 0; /* number of digits output */ - int mincount = 1; /* minimum number required */ - int output = 0; /* digit output (for the fixed point format) */ - - *--end = '\0'; - - /* This is written so that the loop always runs at least once, even with - * number zero. - */ - while (end > start && (number != 0 || count < mincount)) - { - - static const char digits[] = "0123456789ABCDEF"; - - switch (format) - { - case PNG_NUMBER_FORMAT_fixed: - /* Needs five digits (the fraction) */ - mincount = 5; - if (output || number % 10 != 0) - { - *--end = digits[number % 10]; - output = 1; - } - number /= 10; - break; - - case PNG_NUMBER_FORMAT_02u: - /* Expects at least 2 digits. */ - mincount = 2; - /* FALL THROUGH */ - - case PNG_NUMBER_FORMAT_u: - *--end = digits[number % 10]; - number /= 10; - break; - - case PNG_NUMBER_FORMAT_02x: - /* This format expects at least two digits */ - mincount = 2; - /* FALL THROUGH */ - - case PNG_NUMBER_FORMAT_x: - *--end = digits[number & 0xf]; - number >>= 4; - break; - - default: /* an error */ - number = 0; - break; - } - - /* Keep track of the number of digits added */ - ++count; - - /* Float a fixed number here: */ - if (format == PNG_NUMBER_FORMAT_fixed) if (count == 5) if (end > start) - { - /* End of the fraction, but maybe nothing was output? In that case - * drop the decimal point. If the number is a true zero handle that - * here. - */ - if (output != 0) - *--end = '.'; - else if (number == 0) /* and !output */ - *--end = '0'; - } - } - - return end; -} -#endif - -#ifdef PNG_WARNINGS_SUPPORTED -/* This function is called whenever there is a non-fatal error. This function - * should not be changed. If there is a need to handle warnings differently, - * you should supply a replacement warning function and use - * png_set_error_fn() to replace the warning function at run-time. - */ -void PNGAPI -png_warning(png_const_structrp png_ptr, png_const_charp warning_message) -{ - int offset = 0; - if (png_ptr != NULL) - { -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (png_ptr->flags& - (PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) -#endif - { - if (*warning_message == PNG_LITERAL_SHARP) - { - for (offset = 1; offset < 15; offset++) - if (warning_message[offset] == ' ') - break; - } - } - } - if (png_ptr != NULL && png_ptr->warning_fn != NULL) - (*(png_ptr->warning_fn))(png_constcast(png_structrp,png_ptr), - warning_message + offset); - else - png_default_warning(png_ptr, warning_message + offset); -} - -/* These functions support 'formatted' warning messages with up to - * PNG_WARNING_PARAMETER_COUNT parameters. In the format string the parameter - * is introduced by @, where 'number' starts at 1. This follows the - * standard established by X/Open for internationalizable error messages. - */ -void -png_warning_parameter(png_warning_parameters p, int number, - png_const_charp string) -{ - if (number > 0 && number <= PNG_WARNING_PARAMETER_COUNT) - (void)png_safecat(p[number-1], (sizeof p[number-1]), 0, string); -} - -void -png_warning_parameter_unsigned(png_warning_parameters p, int number, int format, - png_alloc_size_t value) -{ - char buffer[PNG_NUMBER_BUFFER_SIZE]; - png_warning_parameter(p, number, PNG_FORMAT_NUMBER(buffer, format, value)); -} - -void -png_warning_parameter_signed(png_warning_parameters p, int number, int format, - png_int_32 value) -{ - png_alloc_size_t u; - png_charp str; - char buffer[PNG_NUMBER_BUFFER_SIZE]; - - /* Avoid overflow by doing the negate in a png_alloc_size_t: */ - u = (png_alloc_size_t)value; - if (value < 0) - u = ~u + 1; - - str = PNG_FORMAT_NUMBER(buffer, format, u); - - if (value < 0 && str > buffer) - *--str = '-'; - - png_warning_parameter(p, number, str); -} - -void -png_formatted_warning(png_const_structrp png_ptr, png_warning_parameters p, - png_const_charp message) -{ - /* The internal buffer is just 192 bytes - enough for all our messages, - * overflow doesn't happen because this code checks! If someone figures - * out how to send us a message longer than 192 bytes, all that will - * happen is that the message will be truncated appropriately. - */ - size_t i = 0; /* Index in the msg[] buffer: */ - char msg[192]; - - /* Each iteration through the following loop writes at most one character - * to msg[i++] then returns here to validate that there is still space for - * the trailing '\0'. It may (in the case of a parameter) read more than - * one character from message[]; it must check for '\0' and continue to the - * test if it finds the end of string. - */ - while (i<(sizeof msg)-1 && *message != '\0') - { - /* '@' at end of string is now just printed (previously it was skipped); - * it is an error in the calling code to terminate the string with @. - */ - if (p != NULL && *message == '@' && message[1] != '\0') - { - int parameter_char = *++message; /* Consume the '@' */ - static const char valid_parameters[] = "123456789"; - int parameter = 0; - - /* Search for the parameter digit, the index in the string is the - * parameter to use. - */ - while (valid_parameters[parameter] != parameter_char && - valid_parameters[parameter] != '\0') - ++parameter; - - /* If the parameter digit is out of range it will just get printed. */ - if (parameter < PNG_WARNING_PARAMETER_COUNT) - { - /* Append this parameter */ - png_const_charp parm = p[parameter]; - png_const_charp pend = p[parameter] + (sizeof p[parameter]); - - /* No need to copy the trailing '\0' here, but there is no guarantee - * that parm[] has been initialized, so there is no guarantee of a - * trailing '\0': - */ - while (i<(sizeof msg)-1 && *parm != '\0' && parm < pend) - msg[i++] = *parm++; - - /* Consume the parameter digit too: */ - ++message; - continue; - } - - /* else not a parameter and there is a character after the @ sign; just - * copy that. This is known not to be '\0' because of the test above. - */ - } - - /* At this point *message can't be '\0', even in the bad parameter case - * above where there is a lone '@' at the end of the message string. - */ - msg[i++] = *message++; - } - - /* i is always less than (sizeof msg), so: */ - msg[i] = '\0'; - - /* And this is the formatted message. It may be larger than - * PNG_MAX_ERROR_TEXT, but that is only used for 'chunk' errors and these - * are not (currently) formatted. - */ - png_warning(png_ptr, msg); -} -#endif /* PNG_WARNINGS_SUPPORTED */ - -#ifdef PNG_BENIGN_ERRORS_SUPPORTED -void PNGAPI -png_benign_error(png_const_structrp png_ptr, png_const_charp error_message) -{ - if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) - { -# ifdef PNG_READ_SUPPORTED - if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && - png_ptr->chunk_name != 0) - png_chunk_warning(png_ptr, error_message); - else -# endif - png_warning(png_ptr, error_message); - } - - else - { -# ifdef PNG_READ_SUPPORTED - if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && - png_ptr->chunk_name != 0) - png_chunk_error(png_ptr, error_message); - else -# endif - png_error(png_ptr, error_message); - } - -# ifndef PNG_ERROR_TEXT_SUPPORTED - PNG_UNUSED(error_message) -# endif -} - -void /* PRIVATE */ -png_app_warning(png_const_structrp png_ptr, png_const_charp error_message) -{ - if (png_ptr->flags & PNG_FLAG_APP_WARNINGS_WARN) - png_warning(png_ptr, error_message); - else - png_error(png_ptr, error_message); - -# ifndef PNG_ERROR_TEXT_SUPPORTED - PNG_UNUSED(error_message) -# endif -} - -void /* PRIVATE */ -png_app_error(png_const_structrp png_ptr, png_const_charp error_message) -{ - if (png_ptr->flags & PNG_FLAG_APP_ERRORS_WARN) - png_warning(png_ptr, error_message); - else - png_error(png_ptr, error_message); - -# ifndef PNG_ERROR_TEXT_SUPPORTED - PNG_UNUSED(error_message) -# endif -} -#endif /* BENIGN_ERRORS */ - -/* These utilities are used internally to build an error message that relates - * to the current chunk. The chunk name comes from png_ptr->chunk_name, - * this is used to prefix the message. The message is limited in length - * to 63 bytes, the name characters are output as hex digits wrapped in [] - * if the character is invalid. - */ -#define isnonalpha(c) ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) -static PNG_CONST char png_digit[16] = { - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', - 'A', 'B', 'C', 'D', 'E', 'F' -}; - -#define PNG_MAX_ERROR_TEXT 196 /* Currently limited be profile_error in png.c */ -#if defined(PNG_WARNINGS_SUPPORTED) || \ - (defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED)) -static void /* PRIVATE */ -png_format_buffer(png_const_structrp png_ptr, png_charp buffer, png_const_charp - error_message) -{ - png_uint_32 chunk_name = png_ptr->chunk_name; - int iout = 0, ishift = 24; - - while (ishift >= 0) - { - int c = (int)(chunk_name >> ishift) & 0xff; - - ishift -= 8; - if (isnonalpha(c)) - { - buffer[iout++] = PNG_LITERAL_LEFT_SQUARE_BRACKET; - buffer[iout++] = png_digit[(c & 0xf0) >> 4]; - buffer[iout++] = png_digit[c & 0x0f]; - buffer[iout++] = PNG_LITERAL_RIGHT_SQUARE_BRACKET; - } - - else - { - buffer[iout++] = (char)c; - } - } - - if (error_message == NULL) - buffer[iout] = '\0'; - - else - { - int iin = 0; - - buffer[iout++] = ':'; - buffer[iout++] = ' '; - - while (iin < PNG_MAX_ERROR_TEXT-1 && error_message[iin] != '\0') - buffer[iout++] = error_message[iin++]; - - /* iin < PNG_MAX_ERROR_TEXT, so the following is safe: */ - buffer[iout] = '\0'; - } -} -#endif /* PNG_WARNINGS_SUPPORTED || PNG_ERROR_TEXT_SUPPORTED */ - -#if defined(PNG_READ_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED) -PNG_FUNCTION(void,PNGAPI -png_chunk_error,(png_const_structrp png_ptr, png_const_charp error_message), - PNG_NORETURN) -{ - char msg[18+PNG_MAX_ERROR_TEXT]; - if (png_ptr == NULL) - png_error(png_ptr, error_message); - - else - { - png_format_buffer(png_ptr, msg, error_message); - png_error(png_ptr, msg); - } -} -#endif /* PNG_READ_SUPPORTED && PNG_ERROR_TEXT_SUPPORTED */ - -#ifdef PNG_WARNINGS_SUPPORTED -void PNGAPI -png_chunk_warning(png_const_structrp png_ptr, png_const_charp warning_message) -{ - char msg[18+PNG_MAX_ERROR_TEXT]; - if (png_ptr == NULL) - png_warning(png_ptr, warning_message); - - else - { - png_format_buffer(png_ptr, msg, warning_message); - png_warning(png_ptr, msg); - } -} -#endif /* PNG_WARNINGS_SUPPORTED */ - -#ifdef PNG_READ_SUPPORTED -#ifdef PNG_BENIGN_ERRORS_SUPPORTED -void PNGAPI -png_chunk_benign_error(png_const_structrp png_ptr, png_const_charp - error_message) -{ - if (png_ptr->flags & PNG_FLAG_BENIGN_ERRORS_WARN) - png_chunk_warning(png_ptr, error_message); - - else - png_chunk_error(png_ptr, error_message); - -# ifndef PNG_ERROR_TEXT_SUPPORTED - PNG_UNUSED(error_message) -# endif -} -#endif -#endif /* PNG_READ_SUPPORTED */ - -void /* PRIVATE */ -png_chunk_report(png_const_structrp png_ptr, png_const_charp message, int error) -{ -# ifndef PNG_WARNINGS_SUPPORTED - PNG_UNUSED(message) -# endif - - /* This is always supported, but for just read or just write it - * unconditionally does the right thing. - */ -# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED) - if (png_ptr->mode & PNG_IS_READ_STRUCT) -# endif - -# ifdef PNG_READ_SUPPORTED - { - if (error < PNG_CHUNK_ERROR) - png_chunk_warning(png_ptr, message); - - else - png_chunk_benign_error(png_ptr, message); - } -# endif - -# if defined(PNG_READ_SUPPORTED) && defined(PNG_WRITE_SUPPORTED) - else if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) -# endif - -# ifdef PNG_WRITE_SUPPORTED - { - if (error < PNG_CHUNK_WRITE_ERROR) - png_app_warning(png_ptr, message); - - else - png_app_error(png_ptr, message); - } -# endif -} - -#ifdef PNG_ERROR_TEXT_SUPPORTED -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_FUNCTION(void, -png_fixed_error,(png_const_structrp png_ptr, png_const_charp name),PNG_NORETURN) -{ -# define fixed_message "fixed point overflow in " -# define fixed_message_ln ((sizeof fixed_message)-1) - int iin; - char msg[fixed_message_ln+PNG_MAX_ERROR_TEXT]; - memcpy(msg, fixed_message, fixed_message_ln); - iin = 0; - if (name != NULL) while (iin < (PNG_MAX_ERROR_TEXT-1) && name[iin] != 0) - { - msg[fixed_message_ln + iin] = name[iin]; - ++iin; - } - msg[fixed_message_ln + iin] = 0; - png_error(png_ptr, msg); -} -#endif -#endif - -#ifdef PNG_SETJMP_SUPPORTED -/* This API only exists if ANSI-C style error handling is used, - * otherwise it is necessary for png_default_error to be overridden. - */ -jmp_buf* PNGAPI -png_set_longjmp_fn(png_structrp png_ptr, png_longjmp_ptr longjmp_fn, - size_t jmp_buf_size) -{ - /* From libpng 1.6.0 the app gets one chance to set a 'jmpbuf_size' value - * and it must not change after that. Libpng doesn't care how big the - * buffer is, just that it doesn't change. - * - * If the buffer size is no *larger* than the size of jmp_buf when libpng is - * compiled a built in jmp_buf is returned; this preserves the pre-1.6.0 - * semantics that this call will not fail. If the size is larger, however, - * the buffer is allocated and this may fail, causing the function to return - * NULL. - */ - if (png_ptr == NULL) - return NULL; - - if (png_ptr->jmp_buf_ptr == NULL) - { - png_ptr->jmp_buf_size = 0; /* not allocated */ - - if (jmp_buf_size <= (sizeof png_ptr->jmp_buf_local)) - png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local; - - else - { - png_ptr->jmp_buf_ptr = png_voidcast(jmp_buf *, - png_malloc_warn(png_ptr, jmp_buf_size)); - - if (png_ptr->jmp_buf_ptr == NULL) - return NULL; /* new NULL return on OOM */ - - png_ptr->jmp_buf_size = jmp_buf_size; - } - } - - else /* Already allocated: check the size */ - { - size_t size = png_ptr->jmp_buf_size; - - if (size == 0) - { - size = (sizeof png_ptr->jmp_buf_local); - if (png_ptr->jmp_buf_ptr != &png_ptr->jmp_buf_local) - { - /* This is an internal error in libpng: somehow we have been left - * with a stack allocated jmp_buf when the application regained - * control. It's always possible to fix this up, but for the moment - * this is a png_error because that makes it easy to detect. - */ - png_error(png_ptr, "Libpng jmp_buf still allocated"); - /* png_ptr->jmp_buf_ptr = &png_ptr->jmp_buf_local; */ - } - } - - if (size != jmp_buf_size) - { - png_warning(png_ptr, "Application jmp_buf size changed"); - return NULL; /* caller will probably crash: no choice here */ - } - } - - /* Finally fill in the function, now we have a satisfactory buffer. It is - * valid to change the function on every call. - */ - png_ptr->longjmp_fn = longjmp_fn; - return png_ptr->jmp_buf_ptr; -} - -void /* PRIVATE */ -png_free_jmpbuf(png_structrp png_ptr) -{ - if (png_ptr != NULL) - { - jmp_buf *jb = png_ptr->jmp_buf_ptr; - - /* A size of 0 is used to indicate a local, stack, allocation of the - * pointer; used here and in png.c - */ - if (jb != NULL && png_ptr->jmp_buf_size > 0) - { - - /* This stuff is so that a failure to free the error control structure - * does not leave libpng in a state with no valid error handling: the - * free always succeeds, if there is an error it gets ignored. - */ - if (jb != &png_ptr->jmp_buf_local) - { - /* Make an internal, libpng, jmp_buf to return here */ - jmp_buf free_jmp_buf; - - if (!setjmp(free_jmp_buf)) - { - png_ptr->jmp_buf_ptr = &free_jmp_buf; /* come back here */ - png_ptr->jmp_buf_size = 0; /* stack allocation */ - png_ptr->longjmp_fn = longjmp; - png_free(png_ptr, jb); /* Return to setjmp on error */ - } - } - } - - /* *Always* cancel everything out: */ - png_ptr->jmp_buf_size = 0; - png_ptr->jmp_buf_ptr = NULL; - png_ptr->longjmp_fn = 0; - } -} -#endif - -/* This is the default error handling function. Note that replacements for - * this function MUST NOT RETURN, or the program will likely crash. This - * function is used by default, or if the program supplies NULL for the - * error function pointer in png_set_error_fn(). - */ -static PNG_FUNCTION(void /* PRIVATE */, -png_default_error,(png_const_structrp png_ptr, png_const_charp error_message), - PNG_NORETURN) -{ -#ifdef PNG_CONSOLE_IO_SUPPORTED -#ifdef PNG_ERROR_NUMBERS_SUPPORTED - /* Check on NULL only added in 1.5.4 */ - if (error_message != NULL && *error_message == PNG_LITERAL_SHARP) - { - /* Strip "#nnnn " from beginning of error message. */ - int offset; - char error_number[16]; - for (offset = 0; offset<15; offset++) - { - error_number[offset] = error_message[offset + 1]; - if (error_message[offset] == ' ') - break; - } - - if ((offset > 1) && (offset < 15)) - { - error_number[offset - 1] = '\0'; - fprintf(stderr, "libpng error no. %s: %s", - error_number, error_message + offset + 1); - fprintf(stderr, PNG_STRING_NEWLINE); - } - - else - { - fprintf(stderr, "libpng error: %s, offset=%d", - error_message, offset); - fprintf(stderr, PNG_STRING_NEWLINE); - } - } - else -#endif - { - fprintf(stderr, "libpng error: %s", error_message ? error_message : - "undefined"); - fprintf(stderr, PNG_STRING_NEWLINE); - } -#else - PNG_UNUSED(error_message) /* Make compiler happy */ -#endif - png_longjmp(png_ptr, 1); -} - -PNG_FUNCTION(void,PNGAPI -png_longjmp,(png_const_structrp png_ptr, int val),PNG_NORETURN) -{ -#ifdef PNG_SETJMP_SUPPORTED - if (png_ptr && png_ptr->longjmp_fn && png_ptr->jmp_buf_ptr) - png_ptr->longjmp_fn(*png_ptr->jmp_buf_ptr, val); -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(val) -#endif - - /* If control reaches this point, png_longjmp() must not return. The only - * choice is to terminate the whole process (or maybe the thread); to do - * this the ANSI-C abort() function is used unless a different method is - * implemented by overriding the default configuration setting for - * PNG_ABORT(). - */ - PNG_ABORT(); -} - -#ifdef PNG_WARNINGS_SUPPORTED -/* This function is called when there is a warning, but the library thinks - * it can continue anyway. Replacement functions don't have to do anything - * here if you don't want them to. In the default configuration, png_ptr is - * not used, but it is passed in case it may be useful. - */ -static void /* PRIVATE */ -png_default_warning(png_const_structrp png_ptr, png_const_charp warning_message) -{ -#ifdef PNG_CONSOLE_IO_SUPPORTED -# ifdef PNG_ERROR_NUMBERS_SUPPORTED - if (*warning_message == PNG_LITERAL_SHARP) - { - int offset; - char warning_number[16]; - for (offset = 0; offset < 15; offset++) - { - warning_number[offset] = warning_message[offset + 1]; - if (warning_message[offset] == ' ') - break; - } - - if ((offset > 1) && (offset < 15)) - { - warning_number[offset + 1] = '\0'; - fprintf(stderr, "libpng warning no. %s: %s", - warning_number, warning_message + offset); - fprintf(stderr, PNG_STRING_NEWLINE); - } - - else - { - fprintf(stderr, "libpng warning: %s", - warning_message); - fprintf(stderr, PNG_STRING_NEWLINE); - } - } - else -# endif - - { - fprintf(stderr, "libpng warning: %s", warning_message); - fprintf(stderr, PNG_STRING_NEWLINE); - } -#else - PNG_UNUSED(warning_message) /* Make compiler happy */ -#endif - PNG_UNUSED(png_ptr) /* Make compiler happy */ -} -#endif /* PNG_WARNINGS_SUPPORTED */ - -/* This function is called when the application wants to use another method - * of handling errors and warnings. Note that the error function MUST NOT - * return to the calling routine or serious problems will occur. The return - * method used in the default routine calls longjmp(png_ptr->jmp_buf_ptr, 1) - */ -void PNGAPI -png_set_error_fn(png_structrp png_ptr, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warning_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->error_ptr = error_ptr; - png_ptr->error_fn = error_fn; -#ifdef PNG_WARNINGS_SUPPORTED - png_ptr->warning_fn = warning_fn; -#else - PNG_UNUSED(warning_fn) -#endif -} - - -/* This function returns a pointer to the error_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_error_ptr(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return NULL; - - return ((png_voidp)png_ptr->error_ptr); -} - - -#ifdef PNG_ERROR_NUMBERS_SUPPORTED -void PNGAPI -png_set_strip_error_numbers(png_structrp png_ptr, png_uint_32 strip_mode) -{ - if (png_ptr != NULL) - { - png_ptr->flags &= - ((~(PNG_FLAG_STRIP_ERROR_NUMBERS | - PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); - } -} -#endif - -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) - /* Currently the above both depend on SETJMP_SUPPORTED, however it would be - * possible to implement without setjmp support just so long as there is some - * way to handle the error return here: - */ -PNG_FUNCTION(void /* PRIVATE */, (PNGCBAPI -png_safe_error),(png_structp png_nonconst_ptr, png_const_charp error_message), - PNG_NORETURN) -{ - const png_const_structrp png_ptr = png_nonconst_ptr; - png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); - - /* An error is always logged here, overwriting anything (typically a warning) - * that is already there: - */ - if (image != NULL) - { - png_safecat(image->message, (sizeof image->message), 0, error_message); - image->warning_or_error |= PNG_IMAGE_ERROR; - - /* Retrieve the jmp_buf from within the png_control, making this work for - * C++ compilation too is pretty tricky: C++ wants a pointer to the first - * element of a jmp_buf, but C doesn't tell us the type of that. - */ - if (image->opaque != NULL && image->opaque->error_buf != NULL) - longjmp(png_control_jmp_buf(image->opaque), 1); - - /* Missing longjmp buffer, the following is to help debugging: */ - { - size_t pos = png_safecat(image->message, (sizeof image->message), 0, - "bad longjmp: "); - png_safecat(image->message, (sizeof image->message), pos, - error_message); - } - } - - /* Here on an internal programming error. */ - abort(); -} - -#ifdef PNG_WARNINGS_SUPPORTED -void /* PRIVATE */ PNGCBAPI -png_safe_warning(png_structp png_nonconst_ptr, png_const_charp warning_message) -{ - const png_const_structrp png_ptr = png_nonconst_ptr; - png_imagep image = png_voidcast(png_imagep, png_ptr->error_ptr); - - /* A warning is only logged if there is no prior warning or error. */ - if (image->warning_or_error == 0) - { - png_safecat(image->message, (sizeof image->message), 0, warning_message); - image->warning_or_error |= PNG_IMAGE_WARNING; - } -} -#endif - -int /* PRIVATE */ -png_safe_execute(png_imagep image_in, int (*function)(png_voidp), png_voidp arg) -{ - volatile png_imagep image = image_in; - volatile int result; - volatile png_voidp saved_error_buf; - jmp_buf safe_jmpbuf; - - /* Safely execute function(arg) with png_error returning to this function. */ - saved_error_buf = image->opaque->error_buf; - result = setjmp(safe_jmpbuf) == 0; - - if (result != 0) - { - - image->opaque->error_buf = safe_jmpbuf; - result = function(arg); - } - - image->opaque->error_buf = saved_error_buf; - - /* And do the cleanup prior to any failure return. */ - if (result == 0) - png_image_free(image); - - return result; -} -#endif /* SIMPLIFIED READ/WRITE */ -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngget.c b/png/pngget.c deleted file mode 100755 index 9e205ad..0000000 --- a/png/pngget.c +++ /dev/null @@ -1,1198 +0,0 @@ - -/* pngget.c - retrieval of values from info struct - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - */ - -#include "pngpriv.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -png_uint_32 PNGAPI -png_get_valid(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_uint_32 flag) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->valid & flag); - - return(0); -} - -png_size_t PNGAPI -png_get_rowbytes(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->rowbytes); - - return(0); -} - -#ifdef PNG_INFO_IMAGE_SUPPORTED -png_bytepp PNGAPI -png_get_rows(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->row_pointers); - - return(0); -} -#endif - -#ifdef PNG_EASY_ACCESS_SUPPORTED -/* Easy access to info, added in libpng-0.99 */ -png_uint_32 PNGAPI -png_get_image_width(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->width; - - return (0); -} - -png_uint_32 PNGAPI -png_get_image_height(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->height; - - return (0); -} - -png_byte PNGAPI -png_get_bit_depth(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->bit_depth; - - return (0); -} - -png_byte PNGAPI -png_get_color_type(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->color_type; - - return (0); -} - -png_byte PNGAPI -png_get_filter_type(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->filter_type; - - return (0); -} - -png_byte PNGAPI -png_get_interlace_type(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->interlace_type; - - return (0); -} - -png_byte PNGAPI -png_get_compression_type(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return info_ptr->compression_type; - - return (0); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp - info_ptr) -{ -#ifdef PNG_pHYs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function", - "png_get_x_pixels_per_meter"); - - if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) - return (info_ptr->x_pixels_per_unit); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp - info_ptr) -{ -#ifdef PNG_pHYs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function", - "png_get_y_pixels_per_meter"); - - if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER) - return (info_ptr->y_pixels_per_unit); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -png_uint_32 PNGAPI -png_get_pixels_per_meter(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ -#ifdef PNG_pHYs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function", "png_get_pixels_per_meter"); - - if (info_ptr->phys_unit_type == PNG_RESOLUTION_METER && - info_ptr->x_pixels_per_unit == info_ptr->y_pixels_per_unit) - return (info_ptr->x_pixels_per_unit); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -#ifdef PNG_FLOATING_POINT_SUPPORTED -float PNGAPI -png_get_pixel_aspect_ratio(png_const_structrp png_ptr, png_const_inforp - info_ptr) -{ -#ifdef PNG_READ_pHYs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio"); - - if (info_ptr->x_pixels_per_unit != 0) - return ((float)((float)info_ptr->y_pixels_per_unit - /(float)info_ptr->x_pixels_per_unit)); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return ((float)0.0); -} -#endif - -#ifdef PNG_FIXED_POINT_SUPPORTED -png_fixed_point PNGAPI -png_get_pixel_aspect_ratio_fixed(png_const_structrp png_ptr, - png_const_inforp info_ptr) -{ -#ifdef PNG_READ_pHYs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs) - && info_ptr->x_pixels_per_unit > 0 && info_ptr->y_pixels_per_unit > 0 - && info_ptr->x_pixels_per_unit <= PNG_UINT_31_MAX - && info_ptr->y_pixels_per_unit <= PNG_UINT_31_MAX) - { - png_fixed_point res; - - png_debug1(1, "in %s retrieval function", "png_get_aspect_ratio_fixed"); - - /* The following casts work because a PNG 4 byte integer only has a valid - * range of 0..2^31-1; otherwise the cast might overflow. - */ - if (png_muldiv(&res, (png_int_32)info_ptr->y_pixels_per_unit, PNG_FP_1, - (png_int_32)info_ptr->x_pixels_per_unit)) - return res; - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return 0; -} -#endif - -png_int_32 PNGAPI -png_get_x_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ -#ifdef PNG_oFFs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_debug1(1, "in %s retrieval function", "png_get_x_offset_microns"); - - if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) - return (info_ptr->x_offset); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_microns(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ -#ifdef PNG_oFFs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_debug1(1, "in %s retrieval function", "png_get_y_offset_microns"); - - if (info_ptr->offset_unit_type == PNG_OFFSET_MICROMETER) - return (info_ptr->y_offset); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -png_int_32 PNGAPI -png_get_x_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ -#ifdef PNG_oFFs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_debug1(1, "in %s retrieval function", "png_get_x_offset_pixels"); - - if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) - return (info_ptr->x_offset); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -png_int_32 PNGAPI -png_get_y_offset_pixels(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ -#ifdef PNG_oFFs_SUPPORTED - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_debug1(1, "in %s retrieval function", "png_get_y_offset_pixels"); - - if (info_ptr->offset_unit_type == PNG_OFFSET_PIXEL) - return (info_ptr->y_offset); - } -#else - PNG_UNUSED(png_ptr) - PNG_UNUSED(info_ptr) -#endif - - return (0); -} - -#ifdef PNG_INCH_CONVERSIONS_SUPPORTED -static png_uint_32 -ppi_from_ppm(png_uint_32 ppm) -{ -#if 0 - /* The conversion is *(2.54/100), in binary (32 digits): - * .00000110100000001001110101001001 - */ - png_uint_32 t1001, t1101; - ppm >>= 1; /* .1 */ - t1001 = ppm + (ppm >> 3); /* .1001 */ - t1101 = t1001 + (ppm >> 1); /* .1101 */ - ppm >>= 20; /* .000000000000000000001 */ - t1101 += t1101 >> 15; /* .1101000000000001101 */ - t1001 >>= 11; /* .000000000001001 */ - t1001 += t1001 >> 12; /* .000000000001001000000001001 */ - ppm += t1001; /* .000000000001001000001001001 */ - ppm += t1101; /* .110100000001001110101001001 */ - return (ppm + 16) >> 5;/* .00000110100000001001110101001001 */ -#else - /* The argument is a PNG unsigned integer, so it is not permitted - * to be bigger than 2^31. - */ - png_fixed_point result; - if (ppm <= PNG_UINT_31_MAX && png_muldiv(&result, (png_int_32)ppm, 127, - 5000)) - return result; - - /* Overflow. */ - return 0; -#endif -} - -png_uint_32 PNGAPI -png_get_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - return ppi_from_ppm(png_get_pixels_per_meter(png_ptr, info_ptr)); -} - -png_uint_32 PNGAPI -png_get_x_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - return ppi_from_ppm(png_get_x_pixels_per_meter(png_ptr, info_ptr)); -} - -png_uint_32 PNGAPI -png_get_y_pixels_per_inch(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - return ppi_from_ppm(png_get_y_pixels_per_meter(png_ptr, info_ptr)); -} - -#ifdef PNG_FIXED_POINT_SUPPORTED -static png_fixed_point -png_fixed_inches_from_microns(png_const_structrp png_ptr, png_int_32 microns) -{ - /* Convert from metres * 1,000,000 to inches * 100,000, meters to - * inches is simply *(100/2.54), so we want *(10/2.54) == 500/127. - * Notice that this can overflow - a warning is output and 0 is - * returned. - */ - return png_muldiv_warn(png_ptr, microns, 500, 127); -} - -png_fixed_point PNGAPI -png_get_x_offset_inches_fixed(png_const_structrp png_ptr, - png_const_inforp info_ptr) -{ - return png_fixed_inches_from_microns(png_ptr, - png_get_x_offset_microns(png_ptr, info_ptr)); -} -#endif - -#ifdef PNG_FIXED_POINT_SUPPORTED -png_fixed_point PNGAPI -png_get_y_offset_inches_fixed(png_const_structrp png_ptr, - png_const_inforp info_ptr) -{ - return png_fixed_inches_from_microns(png_ptr, - png_get_y_offset_microns(png_ptr, info_ptr)); -} -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -float PNGAPI -png_get_x_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - /* To avoid the overflow do the conversion directly in floating - * point. - */ - return (float)(png_get_x_offset_microns(png_ptr, info_ptr) * .00003937); -} -#endif - -#ifdef PNG_FLOATING_POINT_SUPPORTED -float PNGAPI -png_get_y_offset_inches(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - /* To avoid the overflow do the conversion directly in floating - * point. - */ - return (float)(png_get_y_offset_microns(png_ptr, info_ptr) * .00003937); -} -#endif - -#ifdef PNG_pHYs_SUPPORTED -png_uint_32 PNGAPI -png_get_pHYs_dpi(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_debug1(1, "in %s retrieval function", "pHYs"); - - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - - if (*unit_type == 1) - { - if (res_x != NULL) *res_x = (png_uint_32)(*res_x * .0254 + .50); - if (res_y != NULL) *res_y = (png_uint_32)(*res_y * .0254 + .50); - } - } - } - - return (retval); -} -#endif /* PNG_pHYs_SUPPORTED */ -#endif /* PNG_INCH_CONVERSIONS_SUPPORTED */ - -/* png_get_channels really belongs in here, too, but it's been around longer */ - -#endif /* PNG_EASY_ACCESS_SUPPORTED */ - - -png_byte PNGAPI -png_get_channels(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->channels); - - return (0); -} - -#ifdef PNG_READ_SUPPORTED -png_const_bytep PNGAPI -png_get_signature(png_const_structrp png_ptr, png_const_inforp info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return(info_ptr->signature); - - return (NULL); -} -#endif - -#ifdef PNG_bKGD_SUPPORTED -png_uint_32 PNGAPI -png_get_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, - png_color_16p *background) -{ - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) - && background != NULL) - { - png_debug1(1, "in %s retrieval function", "bKGD"); - - *background = &(info_ptr->background); - return (PNG_INFO_bKGD); - } - - return (0); -} -#endif - -#ifdef PNG_cHRM_SUPPORTED -/* The XYZ APIs were added in 1.5.5 to take advantage of the code added at the - * same time to correct the rgb grayscale coefficient defaults obtained from the - * cHRM chunk in 1.5.4 - */ -# ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM(png_const_structrp png_ptr, png_const_inforp info_ptr, - double *white_x, double *white_y, double *red_x, double *red_y, - double *green_x, double *green_y, double *blue_x, double *blue_y) -{ - /* Quiet API change: this code used to only return the end points if a cHRM - * chunk was present, but the end points can also come from iCCP or sRGB - * chunks, so in 1.6.0 the png_get_ APIs return the end points regardless and - * the png_set_ APIs merely check that set end points are mutually - * consistent. - */ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) - { - png_debug1(1, "in %s retrieval function", "cHRM"); - - if (white_x != NULL) - *white_x = png_float(png_ptr, - info_ptr->colorspace.end_points_xy.whitex, "cHRM white X"); - if (white_y != NULL) - *white_y = png_float(png_ptr, - info_ptr->colorspace.end_points_xy.whitey, "cHRM white Y"); - if (red_x != NULL) - *red_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redx, - "cHRM red X"); - if (red_y != NULL) - *red_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.redy, - "cHRM red Y"); - if (green_x != NULL) - *green_x = png_float(png_ptr, - info_ptr->colorspace.end_points_xy.greenx, "cHRM green X"); - if (green_y != NULL) - *green_y = png_float(png_ptr, - info_ptr->colorspace.end_points_xy.greeny, "cHRM green Y"); - if (blue_x != NULL) - *blue_x = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluex, - "cHRM blue X"); - if (blue_y != NULL) - *blue_y = png_float(png_ptr, info_ptr->colorspace.end_points_xy.bluey, - "cHRM blue Y"); - return (PNG_INFO_cHRM); - } - - return (0); -} - -png_uint_32 PNGAPI -png_get_cHRM_XYZ(png_const_structrp png_ptr, png_const_inforp info_ptr, - double *red_X, double *red_Y, double *red_Z, double *green_X, - double *green_Y, double *green_Z, double *blue_X, double *blue_Y, - double *blue_Z) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) - { - png_debug1(1, "in %s retrieval function", "cHRM_XYZ(float)"); - - if (red_X != NULL) - *red_X = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_X, - "cHRM red X"); - if (red_Y != NULL) - *red_Y = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Y, - "cHRM red Y"); - if (red_Z != NULL) - *red_Z = png_float(png_ptr, info_ptr->colorspace.end_points_XYZ.red_Z, - "cHRM red Z"); - if (green_X != NULL) - *green_X = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.green_X, "cHRM green X"); - if (green_Y != NULL) - *green_Y = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.green_Y, "cHRM green Y"); - if (green_Z != NULL) - *green_Z = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.green_Z, "cHRM green Z"); - if (blue_X != NULL) - *blue_X = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.blue_X, "cHRM blue X"); - if (blue_Y != NULL) - *blue_Y = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.blue_Y, "cHRM blue Y"); - if (blue_Z != NULL) - *blue_Z = png_float(png_ptr, - info_ptr->colorspace.end_points_XYZ.blue_Z, "cHRM blue Z"); - return (PNG_INFO_cHRM); - } - - return (0); -} -# endif - -# ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *int_red_X, png_fixed_point *int_red_Y, - png_fixed_point *int_red_Z, png_fixed_point *int_green_X, - png_fixed_point *int_green_Y, png_fixed_point *int_green_Z, - png_fixed_point *int_blue_X, png_fixed_point *int_blue_Y, - png_fixed_point *int_blue_Z) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) - { - png_debug1(1, "in %s retrieval function", "cHRM_XYZ"); - - if (int_red_X != NULL) - *int_red_X = info_ptr->colorspace.end_points_XYZ.red_X; - if (int_red_Y != NULL) - *int_red_Y = info_ptr->colorspace.end_points_XYZ.red_Y; - if (int_red_Z != NULL) - *int_red_Z = info_ptr->colorspace.end_points_XYZ.red_Z; - if (int_green_X != NULL) - *int_green_X = info_ptr->colorspace.end_points_XYZ.green_X; - if (int_green_Y != NULL) - *int_green_Y = info_ptr->colorspace.end_points_XYZ.green_Y; - if (int_green_Z != NULL) - *int_green_Z = info_ptr->colorspace.end_points_XYZ.green_Z; - if (int_blue_X != NULL) - *int_blue_X = info_ptr->colorspace.end_points_XYZ.blue_X; - if (int_blue_Y != NULL) - *int_blue_Y = info_ptr->colorspace.end_points_XYZ.blue_Y; - if (int_blue_Z != NULL) - *int_blue_Z = info_ptr->colorspace.end_points_XYZ.blue_Z; - return (PNG_INFO_cHRM); - } - - return (0); -} - -png_uint_32 PNGAPI -png_get_cHRM_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *white_x, png_fixed_point *white_y, png_fixed_point *red_x, - png_fixed_point *red_y, png_fixed_point *green_x, png_fixed_point *green_y, - png_fixed_point *blue_x, png_fixed_point *blue_y) -{ - png_debug1(1, "in %s retrieval function", "cHRM"); - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_ENDPOINTS)) - { - if (white_x != NULL) - *white_x = info_ptr->colorspace.end_points_xy.whitex; - if (white_y != NULL) - *white_y = info_ptr->colorspace.end_points_xy.whitey; - if (red_x != NULL) - *red_x = info_ptr->colorspace.end_points_xy.redx; - if (red_y != NULL) - *red_y = info_ptr->colorspace.end_points_xy.redy; - if (green_x != NULL) - *green_x = info_ptr->colorspace.end_points_xy.greenx; - if (green_y != NULL) - *green_y = info_ptr->colorspace.end_points_xy.greeny; - if (blue_x != NULL) - *blue_x = info_ptr->colorspace.end_points_xy.bluex; - if (blue_y != NULL) - *blue_y = info_ptr->colorspace.end_points_xy.bluey; - return (PNG_INFO_cHRM); - } - - return (0); -} -# endif -#endif - -#ifdef PNG_gAMA_SUPPORTED -# ifdef PNG_FIXED_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_fixed_point *file_gamma) -{ - png_debug1(1, "in %s retrieval function", "gAMA"); - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) && - file_gamma != NULL) - { - *file_gamma = info_ptr->colorspace.gamma; - return (PNG_INFO_gAMA); - } - - return (0); -} -# endif - -# ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_gAMA(png_const_structrp png_ptr, png_const_inforp info_ptr, - double *file_gamma) -{ - png_debug1(1, "in %s retrieval function", "gAMA(float)"); - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) && - file_gamma != NULL) - { - *file_gamma = png_float(png_ptr, info_ptr->colorspace.gamma, - "png_get_gAMA"); - return (PNG_INFO_gAMA); - } - - return (0); -} -# endif -#endif - -#ifdef PNG_sRGB_SUPPORTED -png_uint_32 PNGAPI -png_get_sRGB(png_const_structrp png_ptr, png_const_inforp info_ptr, - int *file_srgb_intent) -{ - png_debug1(1, "in %s retrieval function", "sRGB"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sRGB) - && file_srgb_intent != NULL) - { - *file_srgb_intent = info_ptr->colorspace.rendering_intent; - return (PNG_INFO_sRGB); - } - - return (0); -} -#endif - -#ifdef PNG_iCCP_SUPPORTED -png_uint_32 PNGAPI -png_get_iCCP(png_const_structrp png_ptr, png_inforp info_ptr, - png_charpp name, int *compression_type, - png_bytepp profile, png_uint_32 *proflen) -{ - png_debug1(1, "in %s retrieval function", "iCCP"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_iCCP) - && name != NULL && compression_type != NULL && profile != NULL && - proflen != NULL) - { - *name = info_ptr->iccp_name; - *profile = info_ptr->iccp_profile; - *proflen = png_get_uint_32(info_ptr->iccp_profile); - /* This is somewhat irrelevant since the profile data returned has - * actually been uncompressed. - */ - *compression_type = PNG_COMPRESSION_TYPE_BASE; - return (PNG_INFO_iCCP); - } - - return (0); -} -#endif - -#ifdef PNG_sPLT_SUPPORTED -int PNGAPI -png_get_sPLT(png_const_structrp png_ptr, png_inforp info_ptr, - png_sPLT_tpp spalettes) -{ - if (png_ptr != NULL && info_ptr != NULL && spalettes != NULL) - { - *spalettes = info_ptr->splt_palettes; - return info_ptr->splt_palettes_num; - } - - return (0); -} -#endif - -#ifdef PNG_hIST_SUPPORTED -png_uint_32 PNGAPI -png_get_hIST(png_const_structrp png_ptr, png_inforp info_ptr, - png_uint_16p *hist) -{ - png_debug1(1, "in %s retrieval function", "hIST"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) - && hist != NULL) - { - *hist = info_ptr->hist; - return (PNG_INFO_hIST); - } - - return (0); -} -#endif - -png_uint_32 PNGAPI -png_get_IHDR(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_uint_32 *width, png_uint_32 *height, int *bit_depth, - int *color_type, int *interlace_type, int *compression_type, - int *filter_type) -{ - png_debug1(1, "in %s retrieval function", "IHDR"); - - if (png_ptr == NULL || info_ptr == NULL || width == NULL || - height == NULL || bit_depth == NULL || color_type == NULL) - return (0); - - *width = info_ptr->width; - *height = info_ptr->height; - *bit_depth = info_ptr->bit_depth; - *color_type = info_ptr->color_type; - - if (compression_type != NULL) - *compression_type = info_ptr->compression_type; - - if (filter_type != NULL) - *filter_type = info_ptr->filter_type; - - if (interlace_type != NULL) - *interlace_type = info_ptr->interlace_type; - - /* This is redundant if we can be sure that the info_ptr values were all - * assigned in png_set_IHDR(). We do the check anyhow in case an - * application has ignored our advice not to mess with the members - * of info_ptr directly. - */ - png_check_IHDR(png_ptr, info_ptr->width, info_ptr->height, - info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, - info_ptr->compression_type, info_ptr->filter_type); - - return (1); -} - -#ifdef PNG_oFFs_SUPPORTED -png_uint_32 PNGAPI -png_get_oFFs(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_int_32 *offset_x, png_int_32 *offset_y, int *unit_type) -{ - png_debug1(1, "in %s retrieval function", "oFFs"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs) - && offset_x != NULL && offset_y != NULL && unit_type != NULL) - { - *offset_x = info_ptr->x_offset; - *offset_y = info_ptr->y_offset; - *unit_type = (int)info_ptr->offset_unit_type; - return (PNG_INFO_oFFs); - } - - return (0); -} -#endif - -#ifdef PNG_pCAL_SUPPORTED -png_uint_32 PNGAPI -png_get_pCAL(png_const_structrp png_ptr, png_inforp info_ptr, - png_charp *purpose, png_int_32 *X0, png_int_32 *X1, int *type, int *nparams, - png_charp *units, png_charpp *params) -{ - png_debug1(1, "in %s retrieval function", "pCAL"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL) - && purpose != NULL && X0 != NULL && X1 != NULL && type != NULL && - nparams != NULL && units != NULL && params != NULL) - { - *purpose = info_ptr->pcal_purpose; - *X0 = info_ptr->pcal_X0; - *X1 = info_ptr->pcal_X1; - *type = (int)info_ptr->pcal_type; - *nparams = (int)info_ptr->pcal_nparams; - *units = info_ptr->pcal_units; - *params = info_ptr->pcal_params; - return (PNG_INFO_pCAL); - } - - return (0); -} -#endif - -#ifdef PNG_sCAL_SUPPORTED -# ifdef PNG_FIXED_POINT_SUPPORTED -# if defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) || \ - defined(PNG_FLOATING_POINT_SUPPORTED) -png_uint_32 PNGAPI -png_get_sCAL_fixed(png_const_structrp png_ptr, png_const_inforp info_ptr, - int *unit, png_fixed_point *width, png_fixed_point *height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - /*TODO: make this work without FP support; the API is currently eliminated - * if neither floating point APIs nor internal floating point arithmetic - * are enabled. - */ - *width = png_fixed(png_ptr, atof(info_ptr->scal_s_width), "sCAL width"); - *height = png_fixed(png_ptr, atof(info_ptr->scal_s_height), - "sCAL height"); - return (PNG_INFO_sCAL); - } - - return(0); -} -# endif /* FLOATING_ARITHMETIC */ -# endif /* FIXED_POINT */ -# ifdef PNG_FLOATING_POINT_SUPPORTED -png_uint_32 PNGAPI -png_get_sCAL(png_const_structrp png_ptr, png_const_inforp info_ptr, - int *unit, double *width, double *height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = atof(info_ptr->scal_s_width); - *height = atof(info_ptr->scal_s_height); - return (PNG_INFO_sCAL); - } - - return(0); -} -# endif /* FLOATING POINT */ -png_uint_32 PNGAPI -png_get_sCAL_s(png_const_structrp png_ptr, png_const_inforp info_ptr, - int *unit, png_charpp width, png_charpp height) -{ - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_sCAL)) - { - *unit = info_ptr->scal_unit; - *width = info_ptr->scal_s_width; - *height = info_ptr->scal_s_height; - return (PNG_INFO_sCAL); - } - - return(0); -} -#endif /* sCAL */ - -#ifdef PNG_pHYs_SUPPORTED -png_uint_32 PNGAPI -png_get_pHYs(png_const_structrp png_ptr, png_const_inforp info_ptr, - png_uint_32 *res_x, png_uint_32 *res_y, int *unit_type) -{ - png_uint_32 retval = 0; - - png_debug1(1, "in %s retrieval function", "pHYs"); - - if (png_ptr != NULL && info_ptr != NULL && - (info_ptr->valid & PNG_INFO_pHYs)) - { - if (res_x != NULL) - { - *res_x = info_ptr->x_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - - if (res_y != NULL) - { - *res_y = info_ptr->y_pixels_per_unit; - retval |= PNG_INFO_pHYs; - } - - if (unit_type != NULL) - { - *unit_type = (int)info_ptr->phys_unit_type; - retval |= PNG_INFO_pHYs; - } - } - - return (retval); -} -#endif /* pHYs */ - -png_uint_32 PNGAPI -png_get_PLTE(png_const_structrp png_ptr, png_inforp info_ptr, - png_colorp *palette, int *num_palette) -{ - png_debug1(1, "in %s retrieval function", "PLTE"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_PLTE) - && palette != NULL) - { - *palette = info_ptr->palette; - *num_palette = info_ptr->num_palette; - png_debug1(3, "num_palette = %d", *num_palette); - return (PNG_INFO_PLTE); - } - - return (0); -} - -#ifdef PNG_sBIT_SUPPORTED -png_uint_32 PNGAPI -png_get_sBIT(png_const_structrp png_ptr, png_inforp info_ptr, - png_color_8p *sig_bit) -{ - png_debug1(1, "in %s retrieval function", "sBIT"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT) - && sig_bit != NULL) - { - *sig_bit = &(info_ptr->sig_bit); - return (PNG_INFO_sBIT); - } - - return (0); -} -#endif - -#ifdef PNG_TEXT_SUPPORTED -int PNGAPI -png_get_text(png_const_structrp png_ptr, png_inforp info_ptr, - png_textp *text_ptr, int *num_text) -{ - if (png_ptr != NULL && info_ptr != NULL && info_ptr->num_text > 0) - { - png_debug1(1, "in 0x%lx retrieval function", - (unsigned long)png_ptr->chunk_name); - - if (text_ptr != NULL) - *text_ptr = info_ptr->text; - - if (num_text != NULL) - *num_text = info_ptr->num_text; - - return info_ptr->num_text; - } - - if (num_text != NULL) - *num_text = 0; - - return(0); -} -#endif - -#ifdef PNG_tIME_SUPPORTED -png_uint_32 PNGAPI -png_get_tIME(png_const_structrp png_ptr, png_inforp info_ptr, - png_timep *mod_time) -{ - png_debug1(1, "in %s retrieval function", "tIME"); - - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME) - && mod_time != NULL) - { - *mod_time = &(info_ptr->mod_time); - return (PNG_INFO_tIME); - } - - return (0); -} -#endif - -#ifdef PNG_tRNS_SUPPORTED -png_uint_32 PNGAPI -png_get_tRNS(png_const_structrp png_ptr, png_inforp info_ptr, - png_bytep *trans_alpha, int *num_trans, png_color_16p *trans_color) -{ - png_uint_32 retval = 0; - if (png_ptr != NULL && info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_debug1(1, "in %s retrieval function", "tRNS"); - - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (trans_alpha != NULL) - { - *trans_alpha = info_ptr->trans_alpha; - retval |= PNG_INFO_tRNS; - } - - if (trans_color != NULL) - *trans_color = &(info_ptr->trans_color); - } - - else /* if (info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) */ - { - if (trans_color != NULL) - { - *trans_color = &(info_ptr->trans_color); - retval |= PNG_INFO_tRNS; - } - - if (trans_alpha != NULL) - *trans_alpha = NULL; - } - - if (num_trans != NULL) - { - *num_trans = info_ptr->num_trans; - retval |= PNG_INFO_tRNS; - } - } - - return (retval); -} -#endif - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -int PNGAPI -png_get_unknown_chunks(png_const_structrp png_ptr, png_inforp info_ptr, - png_unknown_chunkpp unknowns) -{ - if (png_ptr != NULL && info_ptr != NULL && unknowns != NULL) - { - *unknowns = info_ptr->unknown_chunks; - return info_ptr->unknown_chunks_num; - } - - return (0); -} -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -png_byte PNGAPI -png_get_rgb_to_gray_status (png_const_structrp png_ptr) -{ - return (png_byte)(png_ptr ? png_ptr->rgb_to_gray_status : 0); -} -#endif - -#ifdef PNG_USER_CHUNKS_SUPPORTED -png_voidp PNGAPI -png_get_user_chunk_ptr(png_const_structrp png_ptr) -{ - return (png_ptr ? png_ptr->user_chunk_ptr : NULL); -} -#endif - -png_size_t PNGAPI -png_get_compression_buffer_size(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return 0; - -# ifdef PNG_WRITE_SUPPORTED - if (png_ptr->mode & PNG_IS_READ_STRUCT) -# endif - { -# ifdef PNG_SEQUENTIAL_READ_SUPPORTED - return png_ptr->IDAT_read_size; -# else - return PNG_IDAT_READ_SIZE; -# endif - } - -# ifdef PNG_WRITE_SUPPORTED - else - return png_ptr->zbuffer_size; -# endif -} - -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -/* These functions were added to libpng 1.2.6 and were enabled - * by default in libpng-1.4.0 */ -png_uint_32 PNGAPI -png_get_user_width_max (png_const_structrp png_ptr) -{ - return (png_ptr ? png_ptr->user_width_max : 0); -} - -png_uint_32 PNGAPI -png_get_user_height_max (png_const_structrp png_ptr) -{ - return (png_ptr ? png_ptr->user_height_max : 0); -} - -/* This function was added to libpng 1.4.0 */ -png_uint_32 PNGAPI -png_get_chunk_cache_max (png_const_structrp png_ptr) -{ - return (png_ptr ? png_ptr->user_chunk_cache_max : 0); -} - -/* This function was added to libpng 1.4.1 */ -png_alloc_size_t PNGAPI -png_get_chunk_malloc_max (png_const_structrp png_ptr) -{ - return (png_ptr ? png_ptr->user_chunk_malloc_max : 0); -} -#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ - -/* These functions were added to libpng 1.4.0 */ -#ifdef PNG_IO_STATE_SUPPORTED -png_uint_32 PNGAPI -png_get_io_state (png_const_structrp png_ptr) -{ - return png_ptr->io_state; -} - -png_uint_32 PNGAPI -png_get_io_chunk_type (png_const_structrp png_ptr) -{ - return png_ptr->chunk_name; -} -#endif /* ?PNG_IO_STATE_SUPPORTED */ - -#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED -# ifdef PNG_GET_PALETTE_MAX_SUPPORTED -int PNGAPI -png_get_palette_max(png_const_structp png_ptr, png_const_infop info_ptr) -{ - if (png_ptr != NULL && info_ptr != NULL) - return png_ptr->num_palette_max; - - return (-1); -} -# endif -#endif - -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pnginfo.h b/png/pnginfo.h deleted file mode 100755 index 26bf265..0000000 --- a/png/pnginfo.h +++ /dev/null @@ -1,260 +0,0 @@ - -/* pnginfo.h - header file for PNG reference library - * - * Copyright (c) 1998-2013 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Last changed in libpng 1.6.1 [March 28, 2013] - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - - /* png_info is a structure that holds the information in a PNG file so - * that the application can find out the characteristics of the image. - * If you are reading the file, this structure will tell you what is - * in the PNG file. If you are writing the file, fill in the information - * you want to put into the PNG file, using png_set_*() functions, then - * call png_write_info(). - * - * The names chosen should be very close to the PNG specification, so - * consult that document for information about the meaning of each field. - * - * With libpng < 0.95, it was only possible to directly set and read the - * the values in the png_info_struct, which meant that the contents and - * order of the values had to remain fixed. With libpng 0.95 and later, - * however, there are now functions that abstract the contents of - * png_info_struct from the application, so this makes it easier to use - * libpng with dynamic libraries, and even makes it possible to use - * libraries that don't have all of the libpng ancillary chunk-handing - * functionality. In libpng-1.5.0 this was moved into a separate private - * file that is not visible to applications. - * - * The following members may have allocated storage attached that should be - * cleaned up before the structure is discarded: palette, trans, text, - * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile, - * splt_palettes, scal_unit, row_pointers, and unknowns. By default, these - * are automatically freed when the info structure is deallocated, if they were - * allocated internally by libpng. This behavior can be changed by means - * of the png_data_freer() function. - * - * More allocation details: all the chunk-reading functions that - * change these members go through the corresponding png_set_* - * functions. A function to clear these members is available: see - * png_free_data(). The png_set_* functions do not depend on being - * able to point info structure members to any of the storage they are - * passed (they make their own copies), EXCEPT that the png_set_text - * functions use the same storage passed to them in the text_ptr or - * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns - * functions do not make their own copies. - */ -#ifndef PNGINFO_H -#define PNGINFO_H - -struct png_info_def -{ - /* The following are necessary for every PNG file */ - png_uint_32 width; /* width of image in pixels (from IHDR) */ - png_uint_32 height; /* height of image in pixels (from IHDR) */ - png_uint_32 valid; /* valid chunk data (see PNG_INFO_ below) */ - png_size_t rowbytes; /* bytes needed to hold an untransformed row */ - png_colorp palette; /* array of color values (valid & PNG_INFO_PLTE) */ - png_uint_16 num_palette; /* number of color entries in "palette" (PLTE) */ - png_uint_16 num_trans; /* number of transparent palette color (tRNS) */ - png_byte bit_depth; /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */ - png_byte color_type; /* see PNG_COLOR_TYPE_ below (from IHDR) */ - /* The following three should have been named *_method not *_type */ - png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */ - png_byte filter_type; /* must be PNG_FILTER_TYPE_BASE (from IHDR) */ - png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - - /* The following are set by png_set_IHDR, called from the application on - * write, but the are never actually used by the write code. - */ - png_byte channels; /* number of data channels per pixel (1, 2, 3, 4) */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte spare_byte; /* to align the data, and for future use */ - -#ifdef PNG_READ_SUPPORTED - /* This is never set during write */ - png_byte signature[8]; /* magic bytes read by libpng from start of file */ -#endif - - /* The rest of the data is optional. If you are reading, check the - * valid field to see if the information in these are valid. If you - * are writing, set the valid field to those chunks you want written, - * and initialize the appropriate fields below. - */ - -#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) - /* png_colorspace only contains 'flags' if neither GAMMA or COLORSPACE are - * defined. When COLORSPACE is switched on all the colorspace-defining - * chunks should be enabled, when GAMMA is switched on all the gamma-defining - * chunks should be enabled. If this is not done it becomes possible to read - * inconsistent PNG files and assign a probably incorrect interpretation to - * the information. (In other words, by carefully choosing which chunks to - * recognize the system configuration can select an interpretation for PNG - * files containing ambiguous data and this will result in inconsistent - * behavior between different libpng builds!) - */ - png_colorspace colorspace; -#endif - -#ifdef PNG_iCCP_SUPPORTED - /* iCCP chunk data. */ - png_charp iccp_name; /* profile name */ - png_bytep iccp_profile; /* International Color Consortium profile data */ - png_uint_32 iccp_proflen; /* ICC profile data length */ -#endif - -#ifdef PNG_TEXT_SUPPORTED - /* The tEXt, and zTXt chunks contain human-readable textual data in - * uncompressed, compressed, and optionally compressed forms, respectively. - * The data in "text" is an array of pointers to uncompressed, - * null-terminated C strings. Each chunk has a keyword that describes the - * textual data contained in that chunk. Keywords are not required to be - * unique, and the text string may be empty. Any number of text chunks may - * be in an image. - */ - int num_text; /* number of comments read or comments to write */ - int max_text; /* current size of text array */ - png_textp text; /* array of comments read or comments to write */ -#endif /* PNG_TEXT_SUPPORTED */ - -#ifdef PNG_tIME_SUPPORTED - /* The tIME chunk holds the last time the displayed image data was - * modified. See the png_time struct for the contents of this struct. - */ - png_time mod_time; -#endif - -#ifdef PNG_sBIT_SUPPORTED - /* The sBIT chunk specifies the number of significant high-order bits - * in the pixel data. Values are in the range [1, bit_depth], and are - * only specified for the channels in the pixel data. The contents of - * the low-order bits is not specified. Data is valid if - * (valid & PNG_INFO_sBIT) is non-zero. - */ - png_color_8 sig_bit; /* significant bits in color channels */ -#endif - -#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_EXPAND_SUPPORTED) || \ -defined(PNG_READ_BACKGROUND_SUPPORTED) - /* The tRNS chunk supplies transparency data for paletted images and - * other image types that don't need a full alpha channel. There are - * "num_trans" transparency values for a paletted image, stored in the - * same order as the palette colors, starting from index 0. Values - * for the data are in the range [0, 255], ranging from fully transparent - * to fully opaque, respectively. For non-paletted images, there is a - * single color specified that should be treated as fully transparent. - * Data is valid if (valid & PNG_INFO_tRNS) is non-zero. - */ - png_bytep trans_alpha; /* alpha values for paletted image */ - png_color_16 trans_color; /* transparent color for non-palette image */ -#endif - -#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - /* The bKGD chunk gives the suggested image background color if the - * display program does not have its own background color and the image - * is needs to composited onto a background before display. The colors - * in "background" are normally in the same color space/depth as the - * pixel data. Data is valid if (valid & PNG_INFO_bKGD) is non-zero. - */ - png_color_16 background; -#endif - -#ifdef PNG_oFFs_SUPPORTED - /* The oFFs chunk gives the offset in "offset_unit_type" units rightwards - * and downwards from the top-left corner of the display, page, or other - * application-specific co-ordinate space. See the PNG_OFFSET_ defines - * below for the unit types. Valid if (valid & PNG_INFO_oFFs) non-zero. - */ - png_int_32 x_offset; /* x offset on page */ - png_int_32 y_offset; /* y offset on page */ - png_byte offset_unit_type; /* offset units type */ -#endif - -#ifdef PNG_pHYs_SUPPORTED - /* The pHYs chunk gives the physical pixel density of the image for - * display or printing in "phys_unit_type" units (see PNG_RESOLUTION_ - * defines below). Data is valid if (valid & PNG_INFO_pHYs) is non-zero. - */ - png_uint_32 x_pixels_per_unit; /* horizontal pixel density */ - png_uint_32 y_pixels_per_unit; /* vertical pixel density */ - png_byte phys_unit_type; /* resolution type (see PNG_RESOLUTION_ below) */ -#endif - -#ifdef PNG_hIST_SUPPORTED - /* The hIST chunk contains the relative frequency or importance of the - * various palette entries, so that a viewer can intelligently select a - * reduced-color palette, if required. Data is an array of "num_palette" - * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST) - * is non-zero. - */ - png_uint_16p hist; -#endif - -#ifdef PNG_pCAL_SUPPORTED - /* The pCAL chunk describes a transformation between the stored pixel - * values and original physical data values used to create the image. - * The integer range [0, 2^bit_depth - 1] maps to the floating-point - * range given by [pcal_X0, pcal_X1], and are further transformed by a - * (possibly non-linear) transformation function given by "pcal_type" - * and "pcal_params" into "pcal_units". Please see the PNG_EQUATION_ - * defines below, and the PNG-Group's PNG extensions document for a - * complete description of the transformations and how they should be - * implemented, and for a description of the ASCII parameter strings. - * Data values are valid if (valid & PNG_INFO_pCAL) non-zero. - */ - png_charp pcal_purpose; /* pCAL chunk description string */ - png_int_32 pcal_X0; /* minimum value */ - png_int_32 pcal_X1; /* maximum value */ - png_charp pcal_units; /* Latin-1 string giving physical units */ - png_charpp pcal_params; /* ASCII strings containing parameter values */ - png_byte pcal_type; /* equation type (see PNG_EQUATION_ below) */ - png_byte pcal_nparams; /* number of parameters given in pcal_params */ -#endif - -/* New members added in libpng-1.0.6 */ - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED - /* Storage for unknown chunks that the library doesn't recognize. */ - png_unknown_chunkp unknown_chunks; - - /* The type of this field is limited by the type of - * png_struct::user_chunk_cache_max, else overflow can occur. - */ - int unknown_chunks_num; -#endif - -#ifdef PNG_sPLT_SUPPORTED - /* Data on sPLT chunks (there may be more than one). */ - png_sPLT_tp splt_palettes; - int splt_palettes_num; /* Match type returned by png_get API */ -#endif - -#ifdef PNG_sCAL_SUPPORTED - /* The sCAL chunk describes the actual physical dimensions of the - * subject matter of the graphic. The chunk contains a unit specification - * a byte value, and two ASCII strings representing floating-point - * values. The values are width and height corresponsing to one pixel - * in the image. Data values are valid if (valid & PNG_INFO_sCAL) is - * non-zero. - */ - png_byte scal_unit; /* unit of physical scale */ - png_charp scal_s_width; /* string containing height */ - png_charp scal_s_height; /* string containing width */ -#endif - -#ifdef PNG_INFO_IMAGE_SUPPORTED - /* Memory has been allocated if (valid & PNG_ALLOCATED_INFO_ROWS) - non-zero */ - /* Data valid if (valid & PNG_INFO_IDAT) non-zero */ - png_bytepp row_pointers; /* the image bits */ -#endif - -}; -#endif /* PNGINFO_H */ diff --git a/png/pnglibconf.h b/png/pnglibconf.h deleted file mode 100755 index 08ee25c..0000000 --- a/png/pnglibconf.h +++ /dev/null @@ -1,210 +0,0 @@ -/* libpng 1.6.12 STANDARD API DEFINITION */ - -/* pnglibconf.h - library build configuration */ - -/* Libpng version 1.6.12 - June 12, 2014 */ - -/* Copyright (c) 1998-2014 Glenn Randers-Pehrson */ - -/* This code is released under the libpng license. */ -/* For conditions of distribution and use, see the disclaimer */ -/* and license in png.h */ - -/* pnglibconf.h */ -/* Machine generated file: DO NOT EDIT */ -/* Derived from: scripts/pnglibconf.dfa */ -#ifndef PNGLCONF_H -#define PNGLCONF_H -/* options */ -#define PNG_16BIT_SUPPORTED -#define PNG_ALIGNED_MEMORY_SUPPORTED -/*#undef PNG_ARM_NEON_API_SUPPORTED*/ -/*#undef PNG_ARM_NEON_CHECK_SUPPORTED*/ -#define PNG_BENIGN_ERRORS_SUPPORTED -#define PNG_BENIGN_READ_ERRORS_SUPPORTED -/*#undef PNG_BENIGN_WRITE_ERRORS_SUPPORTED*/ -#define PNG_BUILD_GRAYSCALE_PALETTE_SUPPORTED -#define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED -#define PNG_COLORSPACE_SUPPORTED -#define PNG_CONSOLE_IO_SUPPORTED -#define PNG_CONVERT_tIME_SUPPORTED -#define PNG_EASY_ACCESS_SUPPORTED -/*#undef PNG_ERROR_NUMBERS_SUPPORTED*/ -#define PNG_ERROR_TEXT_SUPPORTED -#define PNG_FIXED_POINT_SUPPORTED -#define PNG_FLOATING_ARITHMETIC_SUPPORTED -#define PNG_FLOATING_POINT_SUPPORTED -#define PNG_FORMAT_AFIRST_SUPPORTED -#define PNG_FORMAT_BGR_SUPPORTED -#define PNG_GAMMA_SUPPORTED -#define PNG_GET_PALETTE_MAX_SUPPORTED -#define PNG_HANDLE_AS_UNKNOWN_SUPPORTED -#define PNG_INCH_CONVERSIONS_SUPPORTED -#define PNG_INFO_IMAGE_SUPPORTED -#define PNG_IO_STATE_SUPPORTED -#define PNG_MNG_FEATURES_SUPPORTED -#define PNG_POINTER_INDEXING_SUPPORTED -#define PNG_PROGRESSIVE_READ_SUPPORTED -#define PNG_READ_16BIT_SUPPORTED -#define PNG_READ_ALPHA_MODE_SUPPORTED -#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED -#define PNG_READ_BACKGROUND_SUPPORTED -#define PNG_READ_BGR_SUPPORTED -#define PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED -#define PNG_READ_COMPOSITE_NODIV_SUPPORTED -#define PNG_READ_COMPRESSED_TEXT_SUPPORTED -#define PNG_READ_EXPAND_16_SUPPORTED -#define PNG_READ_EXPAND_SUPPORTED -#define PNG_READ_FILLER_SUPPORTED -#define PNG_READ_GAMMA_SUPPORTED -#define PNG_READ_GET_PALETTE_MAX_SUPPORTED -#define PNG_READ_GRAY_TO_RGB_SUPPORTED -#define PNG_READ_INTERLACING_SUPPORTED -#define PNG_READ_INT_FUNCTIONS_SUPPORTED -#define PNG_READ_INVERT_ALPHA_SUPPORTED -#define PNG_READ_INVERT_SUPPORTED -#define PNG_READ_OPT_PLTE_SUPPORTED -#define PNG_READ_PACKSWAP_SUPPORTED -#define PNG_READ_PACK_SUPPORTED -#define PNG_READ_QUANTIZE_SUPPORTED -#define PNG_READ_RGB_TO_GRAY_SUPPORTED -#define PNG_READ_SCALE_16_TO_8_SUPPORTED -#define PNG_READ_SHIFT_SUPPORTED -#define PNG_READ_STRIP_16_TO_8_SUPPORTED -#define PNG_READ_STRIP_ALPHA_SUPPORTED -#define PNG_READ_SUPPORTED -#define PNG_READ_SWAP_ALPHA_SUPPORTED -#define PNG_READ_SWAP_SUPPORTED -#define PNG_READ_TEXT_SUPPORTED -#define PNG_READ_TRANSFORMS_SUPPORTED -#define PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_READ_USER_CHUNKS_SUPPORTED -#define PNG_READ_USER_TRANSFORM_SUPPORTED -#define PNG_READ_bKGD_SUPPORTED -#define PNG_READ_cHRM_SUPPORTED -#define PNG_READ_gAMA_SUPPORTED -#define PNG_READ_hIST_SUPPORTED -#define PNG_READ_iCCP_SUPPORTED -#define PNG_READ_iTXt_SUPPORTED -#define PNG_READ_oFFs_SUPPORTED -#define PNG_READ_pCAL_SUPPORTED -#define PNG_READ_pHYs_SUPPORTED -#define PNG_READ_sBIT_SUPPORTED -#define PNG_READ_sCAL_SUPPORTED -#define PNG_READ_sPLT_SUPPORTED -#define PNG_READ_sRGB_SUPPORTED -#define PNG_READ_tEXt_SUPPORTED -#define PNG_READ_tIME_SUPPORTED -#define PNG_READ_tRNS_SUPPORTED -#define PNG_READ_zTXt_SUPPORTED -/*#undef PNG_SAFE_LIMITS_SUPPORTED*/ -#define PNG_SAVE_INT_32_SUPPORTED -#define PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_SEQUENTIAL_READ_SUPPORTED -#define PNG_SETJMP_SUPPORTED -#define PNG_SET_CHUNK_CACHE_LIMIT_SUPPORTED -#define PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED -#define PNG_SET_OPTION_SUPPORTED -#define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_SET_USER_LIMITS_SUPPORTED -#define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED -#define PNG_SIMPLIFIED_READ_BGR_SUPPORTED -#define PNG_SIMPLIFIED_READ_SUPPORTED -#define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED -#define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED -#define PNG_SIMPLIFIED_WRITE_SUPPORTED -#define PNG_STDIO_SUPPORTED -#define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_TEXT_SUPPORTED -#define PNG_TIME_RFC1123_SUPPORTED -#define PNG_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_USER_CHUNKS_SUPPORTED -#define PNG_USER_LIMITS_SUPPORTED -#define PNG_USER_MEM_SUPPORTED -#define PNG_USER_TRANSFORM_INFO_SUPPORTED -#define PNG_USER_TRANSFORM_PTR_SUPPORTED -#define PNG_WARNINGS_SUPPORTED -#define PNG_WRITE_16BIT_SUPPORTED -#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED -#define PNG_WRITE_BGR_SUPPORTED -#define PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED -#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED -#define PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED -#define PNG_WRITE_FILLER_SUPPORTED -#define PNG_WRITE_FILTER_SUPPORTED -#define PNG_WRITE_FLUSH_SUPPORTED -#define PNG_WRITE_GET_PALETTE_MAX_SUPPORTED -#define PNG_WRITE_INTERLACING_SUPPORTED -#define PNG_WRITE_INT_FUNCTIONS_SUPPORTED -#define PNG_WRITE_INVERT_ALPHA_SUPPORTED -#define PNG_WRITE_INVERT_SUPPORTED -#define PNG_WRITE_OPTIMIZE_CMF_SUPPORTED -#define PNG_WRITE_PACKSWAP_SUPPORTED -#define PNG_WRITE_PACK_SUPPORTED -#define PNG_WRITE_SHIFT_SUPPORTED -#define PNG_WRITE_SUPPORTED -#define PNG_WRITE_SWAP_ALPHA_SUPPORTED -#define PNG_WRITE_SWAP_SUPPORTED -#define PNG_WRITE_TEXT_SUPPORTED -#define PNG_WRITE_TRANSFORMS_SUPPORTED -#define PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -#define PNG_WRITE_USER_TRANSFORM_SUPPORTED -#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED -#define PNG_WRITE_bKGD_SUPPORTED -#define PNG_WRITE_cHRM_SUPPORTED -#define PNG_WRITE_gAMA_SUPPORTED -#define PNG_WRITE_hIST_SUPPORTED -#define PNG_WRITE_iCCP_SUPPORTED -#define PNG_WRITE_iTXt_SUPPORTED -#define PNG_WRITE_oFFs_SUPPORTED -#define PNG_WRITE_pCAL_SUPPORTED -#define PNG_WRITE_pHYs_SUPPORTED -#define PNG_WRITE_sBIT_SUPPORTED -#define PNG_WRITE_sCAL_SUPPORTED -#define PNG_WRITE_sPLT_SUPPORTED -#define PNG_WRITE_sRGB_SUPPORTED -#define PNG_WRITE_tEXt_SUPPORTED -#define PNG_WRITE_tIME_SUPPORTED -#define PNG_WRITE_tRNS_SUPPORTED -#define PNG_WRITE_zTXt_SUPPORTED -#define PNG_bKGD_SUPPORTED -#define PNG_cHRM_SUPPORTED -#define PNG_gAMA_SUPPORTED -#define PNG_hIST_SUPPORTED -#define PNG_iCCP_SUPPORTED -#define PNG_iTXt_SUPPORTED -#define PNG_oFFs_SUPPORTED -#define PNG_pCAL_SUPPORTED -#define PNG_pHYs_SUPPORTED -#define PNG_sBIT_SUPPORTED -#define PNG_sCAL_SUPPORTED -#define PNG_sPLT_SUPPORTED -#define PNG_sRGB_SUPPORTED -#define PNG_tEXt_SUPPORTED -#define PNG_tIME_SUPPORTED -#define PNG_tRNS_SUPPORTED -#define PNG_zTXt_SUPPORTED -/* end of options */ -/* settings */ -#define PNG_API_RULE 0 -#define PNG_COST_SHIFT 3 -#define PNG_DEFAULT_READ_MACROS 1 -#define PNG_GAMMA_THRESHOLD_FIXED 5000 -#define PNG_IDAT_READ_SIZE PNG_ZBUF_SIZE -#define PNG_INFLATE_BUF_SIZE 1024 -#define PNG_MAX_GAMMA_8 11 -#define PNG_QUANTIZE_BLUE_BITS 5 -#define PNG_QUANTIZE_GREEN_BITS 5 -#define PNG_QUANTIZE_RED_BITS 5 -#define PNG_TEXT_Z_DEFAULT_COMPRESSION (-1) -#define PNG_TEXT_Z_DEFAULT_STRATEGY 0 -#define PNG_WEIGHT_SHIFT 8 -#define PNG_ZBUF_SIZE 8192 -#define PNG_ZLIB_VERNUM 0 /* unknown */ -#define PNG_Z_DEFAULT_COMPRESSION (-1) -#define PNG_Z_DEFAULT_NOFILTER_STRATEGY 0 -#define PNG_Z_DEFAULT_STRATEGY 1 -#define PNG_sCAL_PRECISION 5 -#define PNG_sRGB_PROFILE_CHECKS 2 -/* end of settings */ -#endif /* PNGLCONF_H */ diff --git a/png/pngmem.c b/png/pngmem.c deleted file mode 100755 index 8ee0866..0000000 --- a/png/pngmem.c +++ /dev/null @@ -1,281 +0,0 @@ - -/* pngmem.c - stub functions for memory allocation - * - * Last changed in libpng 1.6.8 [December 19, 2013] - * Copyright (c) 1998-2013 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file provides a location for all memory allocation. Users who - * need special memory handling are expected to supply replacement - * functions for png_malloc() and png_free(), and to use - * png_create_read_struct_2() and png_create_write_struct_2() to - * identify the replacement functions. - */ - -#include "pngpriv.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) -/* Free a png_struct */ -void /* PRIVATE */ -png_destroy_png_struct(png_structrp png_ptr) -{ - if (png_ptr != NULL) - { - /* png_free might call png_error and may certainly call - * png_get_mem_ptr, so fake a temporary png_struct to support this. - */ - png_struct dummy_struct = *png_ptr; - memset(png_ptr, 0, (sizeof *png_ptr)); - png_free(&dummy_struct, png_ptr); - -# ifdef PNG_SETJMP_SUPPORTED - /* We may have a jmp_buf left to deallocate. */ - png_free_jmpbuf(&dummy_struct); -# endif - } -} - -/* Allocate memory. For reasonable files, size should never exceed - * 64K. However, zlib may allocate more then 64K if you don't tell - * it not to. See zconf.h and png.h for more information. zlib does - * need to allocate exactly 64K, so whatever you call here must - * have the ability to do that. - */ -PNG_FUNCTION(png_voidp,PNGAPI -png_calloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED) -{ - png_voidp ret; - - ret = png_malloc(png_ptr, size); - - if (ret != NULL) - memset(ret, 0, size); - - return ret; -} - -/* png_malloc_base, an internal function added at libpng 1.6.0, does the work of - * allocating memory, taking into account limits and PNG_USER_MEM_SUPPORTED. - * Checking and error handling must happen outside this routine; it returns NULL - * if the allocation cannot be done (for any reason.) - */ -PNG_FUNCTION(png_voidp /* PRIVATE */, -png_malloc_base,(png_const_structrp png_ptr, png_alloc_size_t size), - PNG_ALLOCATED) -{ - /* Moved to png_malloc_base from png_malloc_default in 1.6.0; the DOS - * allocators have also been removed in 1.6.0, so any 16-bit system now has - * to implement a user memory handler. This checks to be sure it isn't - * called with big numbers. - */ -#ifndef PNG_USER_MEM_SUPPORTED - PNG_UNUSED(png_ptr) -#endif - - if (size > 0 && size <= PNG_SIZE_MAX -# ifdef PNG_MAX_MALLOC_64K - && size <= 65536U -# endif - ) - { -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr != NULL && png_ptr->malloc_fn != NULL) - return png_ptr->malloc_fn(png_constcast(png_structrp,png_ptr), size); - - else -#endif - return malloc((size_t)size); /* checked for truncation above */ - } - - else - return NULL; -} - -#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\ - defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) -/* This is really here only to work round a spurious warning in GCC 4.6 and 4.7 - * that arises because of the checks in png_realloc_array that are repeated in - * png_malloc_array. - */ -static png_voidp -png_malloc_array_checked(png_const_structrp png_ptr, int nelements, - size_t element_size) -{ - png_alloc_size_t req = nelements; /* known to be > 0 */ - - if (req <= PNG_SIZE_MAX/element_size) - return png_malloc_base(png_ptr, req * element_size); - - /* The failure case when the request is too large */ - return NULL; -} - -PNG_FUNCTION(png_voidp /* PRIVATE */, -png_malloc_array,(png_const_structrp png_ptr, int nelements, - size_t element_size),PNG_ALLOCATED) -{ - if (nelements <= 0 || element_size == 0) - png_error(png_ptr, "internal error: array alloc"); - - return png_malloc_array_checked(png_ptr, nelements, element_size); -} - -PNG_FUNCTION(png_voidp /* PRIVATE */, -png_realloc_array,(png_const_structrp png_ptr, png_const_voidp old_array, - int old_elements, int add_elements, size_t element_size),PNG_ALLOCATED) -{ - /* These are internal errors: */ - if (add_elements <= 0 || element_size == 0 || old_elements < 0 || - (old_array == NULL && old_elements > 0)) - png_error(png_ptr, "internal error: array realloc"); - - /* Check for overflow on the elements count (so the caller does not have to - * check.) - */ - if (add_elements <= INT_MAX - old_elements) - { - png_voidp new_array = png_malloc_array_checked(png_ptr, - old_elements+add_elements, element_size); - - if (new_array != NULL) - { - /* Because png_malloc_array worked the size calculations below cannot - * overflow. - */ - if (old_elements > 0) - memcpy(new_array, old_array, element_size*(unsigned)old_elements); - - memset((char*)new_array + element_size*(unsigned)old_elements, 0, - element_size*(unsigned)add_elements); - - return new_array; - } - } - - return NULL; /* error */ -} -#endif /* TEXT || sPLT || STORE_UNKNOWN_CHUNKS */ - -/* Various functions that have different error handling are derived from this. - * png_malloc always exists, but if PNG_USER_MEM_SUPPORTED is defined a separate - * function png_malloc_default is also provided. - */ -PNG_FUNCTION(png_voidp,PNGAPI -png_malloc,(png_const_structrp png_ptr, png_alloc_size_t size),PNG_ALLOCATED) -{ - png_voidp ret; - - if (png_ptr == NULL) - return NULL; - - ret = png_malloc_base(png_ptr, size); - - if (ret == NULL) - png_error(png_ptr, "Out of memory"); /* 'm' means png_malloc */ - - return ret; -} - -#ifdef PNG_USER_MEM_SUPPORTED -PNG_FUNCTION(png_voidp,PNGAPI -png_malloc_default,(png_const_structrp png_ptr, png_alloc_size_t size), - PNG_ALLOCATED PNG_DEPRECATED) -{ - png_voidp ret; - - if (png_ptr == NULL) - return NULL; - - /* Passing 'NULL' here bypasses the application provided memory handler. */ - ret = png_malloc_base(NULL/*use malloc*/, size); - - if (ret == NULL) - png_error(png_ptr, "Out of Memory"); /* 'M' means png_malloc_default */ - - return ret; -} -#endif /* PNG_USER_MEM_SUPPORTED */ - -/* This function was added at libpng version 1.2.3. The png_malloc_warn() - * function will issue a png_warning and return NULL instead of issuing a - * png_error, if it fails to allocate the requested memory. - */ -PNG_FUNCTION(png_voidp,PNGAPI -png_malloc_warn,(png_const_structrp png_ptr, png_alloc_size_t size), - PNG_ALLOCATED) -{ - if (png_ptr != NULL) - { - png_voidp ret = png_malloc_base(png_ptr, size); - - if (ret != NULL) - return ret; - - png_warning(png_ptr, "Out of memory"); - } - - return NULL; -} - -/* Free a pointer allocated by png_malloc(). If ptr is NULL, return - * without taking any action. - */ -void PNGAPI -png_free(png_const_structrp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL || ptr == NULL) - return; - -#ifdef PNG_USER_MEM_SUPPORTED - if (png_ptr->free_fn != NULL) - png_ptr->free_fn(png_constcast(png_structrp,png_ptr), ptr); - - else - png_free_default(png_ptr, ptr); -} - -PNG_FUNCTION(void,PNGAPI -png_free_default,(png_const_structrp png_ptr, png_voidp ptr),PNG_DEPRECATED) -{ - if (png_ptr == NULL || ptr == NULL) - return; -#endif /* PNG_USER_MEM_SUPPORTED */ - - free(ptr); -} - -#ifdef PNG_USER_MEM_SUPPORTED -/* This function is called when the application wants to use another method - * of allocating and freeing memory. - */ -void PNGAPI -png_set_mem_fn(png_structrp png_ptr, png_voidp mem_ptr, png_malloc_ptr - malloc_fn, png_free_ptr free_fn) -{ - if (png_ptr != NULL) - { - png_ptr->mem_ptr = mem_ptr; - png_ptr->malloc_fn = malloc_fn; - png_ptr->free_fn = free_fn; - } -} - -/* This function returns a pointer to the mem_ptr associated with the user - * functions. The application should free any memory associated with this - * pointer before png_write_destroy and png_read_destroy are called. - */ -png_voidp PNGAPI -png_get_mem_ptr(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return NULL; - - return png_ptr->mem_ptr; -} -#endif /* PNG_USER_MEM_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngnow.png b/png/pngnow.png deleted file mode 100755 index 82793eb..0000000 Binary files a/png/pngnow.png and /dev/null differ diff --git a/png/pngpread.c b/png/pngpread.c deleted file mode 100755 index 819db03..0000000 --- a/png/pngpread.c +++ /dev/null @@ -1,1286 +0,0 @@ - -/* pngpread.c - read a png file in push mode - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -#include "pngpriv.h" - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - -/* Push model modes */ -#define PNG_READ_SIG_MODE 0 -#define PNG_READ_CHUNK_MODE 1 -#define PNG_READ_IDAT_MODE 2 -#define PNG_SKIP_MODE 3 -#define PNG_READ_tEXt_MODE 4 -#define PNG_READ_zTXt_MODE 5 -#define PNG_READ_DONE_MODE 6 -#define PNG_READ_iTXt_MODE 7 -#define PNG_ERROR_MODE 8 - -void PNGAPI -png_process_data(png_structrp png_ptr, png_inforp info_ptr, - png_bytep buffer, png_size_t buffer_size) -{ - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_push_restore_buffer(png_ptr, buffer, buffer_size); - - while (png_ptr->buffer_size) - { - png_process_some_data(png_ptr, info_ptr); - } -} - -png_size_t PNGAPI -png_process_data_pause(png_structrp png_ptr, int save) -{ - if (png_ptr != NULL) - { - /* It's easiest for the caller if we do the save, then the caller doesn't - * have to supply the same data again: - */ - if (save != 0) - png_push_save_buffer(png_ptr); - else - { - /* This includes any pending saved bytes: */ - png_size_t remaining = png_ptr->buffer_size; - png_ptr->buffer_size = 0; - - /* So subtract the saved buffer size, unless all the data - * is actually 'saved', in which case we just return 0 - */ - if (png_ptr->save_buffer_size < remaining) - return remaining - png_ptr->save_buffer_size; - } - } - - return 0; -} - -png_uint_32 PNGAPI -png_process_data_skip(png_structrp png_ptr) -{ - png_uint_32 remaining = 0; - - if (png_ptr != NULL && png_ptr->process_mode == PNG_SKIP_MODE && - png_ptr->skip_length > 0) - { - /* At the end of png_process_data the buffer size must be 0 (see the loop - * above) so we can detect a broken call here: - */ - if (png_ptr->buffer_size != 0) - png_error(png_ptr, - "png_process_data_skip called inside png_process_data"); - - /* If is impossible for there to be a saved buffer at this point - - * otherwise we could not be in SKIP mode. This will also happen if - * png_process_skip is called inside png_process_data (but only very - * rarely.) - */ - if (png_ptr->save_buffer_size != 0) - png_error(png_ptr, "png_process_data_skip called with saved data"); - - remaining = png_ptr->skip_length; - png_ptr->skip_length = 0; - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } - - return remaining; -} - -/* What we do with the incoming data depends on what we were previously - * doing before we ran out of data... - */ -void /* PRIVATE */ -png_process_some_data(png_structrp png_ptr, png_inforp info_ptr) -{ - if (png_ptr == NULL) - return; - - switch (png_ptr->process_mode) - { - case PNG_READ_SIG_MODE: - { - png_push_read_sig(png_ptr, info_ptr); - break; - } - - case PNG_READ_CHUNK_MODE: - { - png_push_read_chunk(png_ptr, info_ptr); - break; - } - - case PNG_READ_IDAT_MODE: - { - png_push_read_IDAT(png_ptr); - break; - } - - case PNG_SKIP_MODE: - { - png_push_crc_finish(png_ptr); - break; - } - - default: - { - png_ptr->buffer_size = 0; - break; - } - } -} - -/* Read any remaining signature bytes from the stream and compare them with - * the correct PNG signature. It is possible that this routine is called - * with bytes already read from the signature, either because they have been - * checked by the calling application, or because of multiple calls to this - * routine. - */ -void /* PRIVATE */ -png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr) -{ - png_size_t num_checked = png_ptr->sig_bytes, /* SAFE, does not exceed 8 */ - num_to_check = 8 - num_checked; - - if (png_ptr->buffer_size < num_to_check) - { - num_to_check = png_ptr->buffer_size; - } - - png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]), - num_to_check); - png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check); - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - else - { - if (png_ptr->sig_bytes >= 8) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } - } -} - -void /* PRIVATE */ -png_push_read_chunk(png_structrp png_ptr, png_inforp info_ptr) -{ - png_uint_32 chunk_name; -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - int keep; /* unknown handling method */ -#endif - - /* First we make sure we have enough data for the 4 byte chunk name - * and the 4 byte chunk length before proceeding with decoding the - * chunk data. To fully decode each of these chunks, we also make - * sure we have enough data in the buffer for the 4 byte CRC at the - * end of every chunk (except IDAT, which is handled separately). - */ - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - png_byte chunk_tag[4]; - - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, chunk_tag, 4); - png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - } - - chunk_name = png_ptr->chunk_name; - - if (chunk_name == png_IDAT) - { - if (png_ptr->mode & PNG_AFTER_IDAT) - png_ptr->mode |= PNG_HAVE_CHUNK_AFTER_IDAT; - - /* If we reach an IDAT chunk, this means we have read all of the - * header chunks, and we can start reading the image (or if this - * is called after the image has been read - we have an error). - */ - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_error(png_ptr, "Missing IHDR before IDAT"); - - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_error(png_ptr, "Missing PLTE before IDAT"); - - png_ptr->mode |= PNG_HAVE_IDAT; - png_ptr->process_mode = PNG_READ_IDAT_MODE; - - if (!(png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - if (png_ptr->push_length == 0) - return; - - if (png_ptr->mode & PNG_AFTER_IDAT) - png_benign_error(png_ptr, "Too many IDATs found"); - } - - if (chunk_name == png_IHDR) - { - if (png_ptr->push_length != 13) - png_error(png_ptr, "Invalid IHDR length"); - - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_IHDR(png_ptr, info_ptr, png_ptr->push_length); - } - - else if (chunk_name == png_IEND) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_IEND(png_ptr, info_ptr, png_ptr->push_length); - - png_ptr->process_mode = PNG_READ_DONE_MODE; - png_push_have_end(png_ptr, info_ptr); - } - -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, keep); - - if (chunk_name == png_PLTE) - png_ptr->mode |= PNG_HAVE_PLTE; - } -#endif - - else if (chunk_name == png_PLTE) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_PLTE(png_ptr, info_ptr, png_ptr->push_length); - } - - else if (chunk_name == png_IDAT) - { - png_ptr->idat_size = png_ptr->push_length; - png_ptr->process_mode = PNG_READ_IDAT_MODE; - png_push_have_info(png_ptr, info_ptr); - png_ptr->zstream.avail_out = - (uInt) PNG_ROWBYTES(png_ptr->pixel_depth, - png_ptr->iwidth) + 1; - png_ptr->zstream.next_out = png_ptr->row_buf; - return; - } - -#ifdef PNG_READ_gAMA_SUPPORTED - else if (png_ptr->chunk_name == png_gAMA) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_gAMA(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_sBIT_SUPPORTED - else if (png_ptr->chunk_name == png_sBIT) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_sBIT(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_cHRM_SUPPORTED - else if (png_ptr->chunk_name == png_cHRM) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_cHRM(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_sRGB_SUPPORTED - else if (chunk_name == png_sRGB) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_sRGB(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_iCCP_SUPPORTED - else if (png_ptr->chunk_name == png_iCCP) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_iCCP(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_sPLT_SUPPORTED - else if (chunk_name == png_sPLT) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_sPLT(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_tRNS_SUPPORTED - else if (chunk_name == png_tRNS) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_tRNS(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_bKGD_SUPPORTED - else if (chunk_name == png_bKGD) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_bKGD(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_hIST_SUPPORTED - else if (chunk_name == png_hIST) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_hIST(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_pHYs_SUPPORTED - else if (chunk_name == png_pHYs) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_pHYs(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_oFFs_SUPPORTED - else if (chunk_name == png_oFFs) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_oFFs(png_ptr, info_ptr, png_ptr->push_length); - } -#endif - -#ifdef PNG_READ_pCAL_SUPPORTED - else if (chunk_name == png_pCAL) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_pCAL(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_sCAL_SUPPORTED - else if (chunk_name == png_sCAL) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_sCAL(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_tIME_SUPPORTED - else if (chunk_name == png_tIME) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_tIME(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_tEXt_SUPPORTED - else if (chunk_name == png_tEXt) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_tEXt(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_zTXt_SUPPORTED - else if (chunk_name == png_zTXt) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_zTXt(png_ptr, info_ptr, png_ptr->push_length); - } - -#endif -#ifdef PNG_READ_iTXt_SUPPORTED - else if (chunk_name == png_iTXt) - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - - png_handle_iTXt(png_ptr, info_ptr, png_ptr->push_length); - } -#endif - - else - { - if (png_ptr->push_length + 4 > png_ptr->buffer_size) - { - png_push_save_buffer(png_ptr); - return; - } - png_handle_unknown(png_ptr, info_ptr, png_ptr->push_length, - PNG_HANDLE_CHUNK_AS_DEFAULT); - } - - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; -} - -void /* PRIVATE */ -png_push_crc_skip(png_structrp png_ptr, png_uint_32 skip) -{ - png_ptr->process_mode = PNG_SKIP_MODE; - png_ptr->skip_length = skip; -} - -void /* PRIVATE */ -png_push_crc_finish(png_structrp png_ptr) -{ - if (png_ptr->skip_length && png_ptr->save_buffer_size) - { - png_size_t save_size = png_ptr->save_buffer_size; - png_uint_32 skip_length = png_ptr->skip_length; - - /* We want the smaller of 'skip_length' and 'save_buffer_size', but - * they are of different types and we don't know which variable has the - * fewest bits. Carefully select the smaller and cast it to the type of - * the larger - this cannot overflow. Do not cast in the following test - * - it will break on either 16 or 64 bit platforms. - */ - if (skip_length < save_size) - save_size = (png_size_t)skip_length; - - else - skip_length = (png_uint_32)save_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - - png_ptr->skip_length -= skip_length; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (png_ptr->skip_length && png_ptr->current_buffer_size) - { - png_size_t save_size = png_ptr->current_buffer_size; - png_uint_32 skip_length = png_ptr->skip_length; - - /* We want the smaller of 'skip_length' and 'current_buffer_size', here, - * the same problem exists as above and the same solution. - */ - if (skip_length < save_size) - save_size = (png_size_t)skip_length; - - else - skip_length = (png_uint_32)save_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->skip_length -= skip_length; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->skip_length) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - } -} - -void PNGCBAPI -png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length) -{ - png_bytep ptr; - - if (png_ptr == NULL) - return; - - ptr = buffer; - if (png_ptr->save_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->save_buffer_size) - save_size = length; - - else - save_size = png_ptr->save_buffer_size; - - memcpy(ptr, png_ptr->save_buffer_ptr, save_size); - length -= save_size; - ptr += save_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - if (length && png_ptr->current_buffer_size) - { - png_size_t save_size; - - if (length < png_ptr->current_buffer_size) - save_size = length; - - else - save_size = png_ptr->current_buffer_size; - - memcpy(ptr, png_ptr->current_buffer_ptr, save_size); - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } -} - -void /* PRIVATE */ -png_push_save_buffer(png_structrp png_ptr) -{ - if (png_ptr->save_buffer_size) - { - if (png_ptr->save_buffer_ptr != png_ptr->save_buffer) - { - png_size_t i, istop; - png_bytep sp; - png_bytep dp; - - istop = png_ptr->save_buffer_size; - for (i = 0, sp = png_ptr->save_buffer_ptr, dp = png_ptr->save_buffer; - i < istop; i++, sp++, dp++) - { - *dp = *sp; - } - } - } - if (png_ptr->save_buffer_size + png_ptr->current_buffer_size > - png_ptr->save_buffer_max) - { - png_size_t new_max; - png_bytep old_buffer; - - if (png_ptr->save_buffer_size > PNG_SIZE_MAX - - (png_ptr->current_buffer_size + 256)) - { - png_error(png_ptr, "Potential overflow of save_buffer"); - } - - new_max = png_ptr->save_buffer_size + png_ptr->current_buffer_size + 256; - old_buffer = png_ptr->save_buffer; - png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr, - (png_size_t)new_max); - - if (png_ptr->save_buffer == NULL) - { - png_free(png_ptr, old_buffer); - png_error(png_ptr, "Insufficient memory for save_buffer"); - } - - memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size); - png_free(png_ptr, old_buffer); - png_ptr->save_buffer_max = new_max; - } - if (png_ptr->current_buffer_size) - { - memcpy(png_ptr->save_buffer + png_ptr->save_buffer_size, - png_ptr->current_buffer_ptr, png_ptr->current_buffer_size); - png_ptr->save_buffer_size += png_ptr->current_buffer_size; - png_ptr->current_buffer_size = 0; - } - png_ptr->save_buffer_ptr = png_ptr->save_buffer; - png_ptr->buffer_size = 0; -} - -void /* PRIVATE */ -png_push_restore_buffer(png_structrp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - png_ptr->current_buffer = buffer; - png_ptr->current_buffer_size = buffer_length; - png_ptr->buffer_size = buffer_length + png_ptr->save_buffer_size; - png_ptr->current_buffer_ptr = png_ptr->current_buffer; -} - -void /* PRIVATE */ -png_push_read_IDAT(png_structrp png_ptr) -{ - if (!(png_ptr->mode & PNG_HAVE_CHUNK_HEADER)) - { - png_byte chunk_length[4]; - png_byte chunk_tag[4]; - - /* TODO: this code can be commoned up with the same code in push_read */ - if (png_ptr->buffer_size < 8) - { - png_push_save_buffer(png_ptr); - return; - } - - png_push_fill_buffer(png_ptr, chunk_length, 4); - png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length); - png_reset_crc(png_ptr); - png_crc_read(png_ptr, chunk_tag, 4); - png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(chunk_tag); - png_ptr->mode |= PNG_HAVE_CHUNK_HEADER; - - if (png_ptr->chunk_name != png_IDAT) - { - png_ptr->process_mode = PNG_READ_CHUNK_MODE; - - if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) - png_error(png_ptr, "Not enough compressed data"); - - return; - } - - png_ptr->idat_size = png_ptr->push_length; - } - - if (png_ptr->idat_size && png_ptr->save_buffer_size) - { - png_size_t save_size = png_ptr->save_buffer_size; - png_uint_32 idat_size = png_ptr->idat_size; - - /* We want the smaller of 'idat_size' and 'current_buffer_size', but they - * are of different types and we don't know which variable has the fewest - * bits. Carefully select the smaller and cast it to the type of the - * larger - this cannot overflow. Do not cast in the following test - it - * will break on either 16 or 64 bit platforms. - */ - if (idat_size < save_size) - save_size = (png_size_t)idat_size; - - else - idat_size = (png_uint_32)save_size; - - png_calculate_crc(png_ptr, png_ptr->save_buffer_ptr, save_size); - - png_process_IDAT_data(png_ptr, png_ptr->save_buffer_ptr, save_size); - - png_ptr->idat_size -= idat_size; - png_ptr->buffer_size -= save_size; - png_ptr->save_buffer_size -= save_size; - png_ptr->save_buffer_ptr += save_size; - } - - if (png_ptr->idat_size && png_ptr->current_buffer_size) - { - png_size_t save_size = png_ptr->current_buffer_size; - png_uint_32 idat_size = png_ptr->idat_size; - - /* We want the smaller of 'idat_size' and 'current_buffer_size', but they - * are of different types and we don't know which variable has the fewest - * bits. Carefully select the smaller and cast it to the type of the - * larger - this cannot overflow. - */ - if (idat_size < save_size) - save_size = (png_size_t)idat_size; - - else - idat_size = (png_uint_32)save_size; - - png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size); - - png_ptr->idat_size -= idat_size; - png_ptr->buffer_size -= save_size; - png_ptr->current_buffer_size -= save_size; - png_ptr->current_buffer_ptr += save_size; - } - if (!png_ptr->idat_size) - { - if (png_ptr->buffer_size < 4) - { - png_push_save_buffer(png_ptr); - return; - } - - png_crc_finish(png_ptr, 0); - png_ptr->mode &= ~PNG_HAVE_CHUNK_HEADER; - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->zowner = 0; - } -} - -void /* PRIVATE */ -png_process_IDAT_data(png_structrp png_ptr, png_bytep buffer, - png_size_t buffer_length) -{ - /* The caller checks for a non-zero buffer length. */ - if (!(buffer_length > 0) || buffer == NULL) - png_error(png_ptr, "No IDAT data (internal error)"); - - /* This routine must process all the data it has been given - * before returning, calling the row callback as required to - * handle the uncompressed results. - */ - png_ptr->zstream.next_in = buffer; - /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */ - png_ptr->zstream.avail_in = (uInt)buffer_length; - - /* Keep going until the decompressed data is all processed - * or the stream marked as finished. - */ - while (png_ptr->zstream.avail_in > 0 && - !(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) - { - int ret; - - /* We have data for zlib, but we must check that zlib - * has someplace to put the results. It doesn't matter - * if we don't expect any results -- it may be the input - * data is just the LZ end code. - */ - if (!(png_ptr->zstream.avail_out > 0)) - { - /* TODO: WARNING: TRUNCATION ERROR: DANGER WILL ROBINSON: */ - png_ptr->zstream.avail_out = (uInt)(PNG_ROWBYTES(png_ptr->pixel_depth, - png_ptr->iwidth) + 1); - - png_ptr->zstream.next_out = png_ptr->row_buf; - } - - /* Using Z_SYNC_FLUSH here means that an unterminated - * LZ stream (a stream with a missing end code) can still - * be handled, otherwise (Z_NO_FLUSH) a future zlib - * implementation might defer output and therefore - * change the current behavior (see comments in inflate.c - * for why this doesn't happen at present with zlib 1.2.5). - */ - ret = inflate(&png_ptr->zstream, Z_SYNC_FLUSH); - - /* Check for any failure before proceeding. */ - if (ret != Z_OK && ret != Z_STREAM_END) - { - /* Terminate the decompression. */ - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; - png_ptr->zowner = 0; - - /* This may be a truncated stream (missing or - * damaged end code). Treat that as a warning. - */ - if (png_ptr->row_number >= png_ptr->num_rows || - png_ptr->pass > 6) - png_warning(png_ptr, "Truncated compressed data in IDAT"); - - else - png_error(png_ptr, "Decompression error in IDAT"); - - /* Skip the check on unprocessed input */ - return; - } - - /* Did inflate output any data? */ - if (png_ptr->zstream.next_out != png_ptr->row_buf) - { - /* Is this unexpected data after the last row? - * If it is, artificially terminate the LZ output - * here. - */ - if (png_ptr->row_number >= png_ptr->num_rows || - png_ptr->pass > 6) - { - /* Extra data. */ - png_warning(png_ptr, "Extra compressed data in IDAT"); - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; - png_ptr->zowner = 0; - - /* Do no more processing; skip the unprocessed - * input check below. - */ - return; - } - - /* Do we have a complete row? */ - if (png_ptr->zstream.avail_out == 0) - png_push_process_row(png_ptr); - } - - /* And check for the end of the stream. */ - if (ret == Z_STREAM_END) - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; - } - - /* All the data should have been processed, if anything - * is left at this point we have bytes of IDAT data - * after the zlib end code. - */ - if (png_ptr->zstream.avail_in > 0) - png_warning(png_ptr, "Extra compression data in IDAT"); -} - -void /* PRIVATE */ -png_push_process_row(png_structrp png_ptr) -{ - /* 1.5.6: row_info moved out of png_struct to a local here. */ - png_row_info row_info; - - row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */ - row_info.color_type = png_ptr->color_type; - row_info.bit_depth = png_ptr->bit_depth; - row_info.channels = png_ptr->channels; - row_info.pixel_depth = png_ptr->pixel_depth; - row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); - - if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE) - { - if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST) - png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1, - png_ptr->prev_row + 1, png_ptr->row_buf[0]); - else - png_error(png_ptr, "bad adaptive filter value"); - } - - /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before - * 1.5.6, while the buffer really is this big in current versions of libpng - * it may not be in the future, so this was changed just to copy the - * interlaced row count: - */ - memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1); - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED - if (png_ptr->transformations) - png_do_read_transformations(png_ptr, &row_info); -#endif - - /* The transformed pixel depth should match the depth now in row_info. */ - if (png_ptr->transformed_pixel_depth == 0) - { - png_ptr->transformed_pixel_depth = row_info.pixel_depth; - if (row_info.pixel_depth > png_ptr->maximum_pixel_depth) - png_error(png_ptr, "progressive row overflow"); - } - - else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth) - png_error(png_ptr, "internal progressive row size calculation error"); - - -#ifdef PNG_READ_INTERLACING_SUPPORTED - /* Expand interlaced rows to full size */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) - png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, - png_ptr->transformations); - - switch (png_ptr->pass) - { - case 0: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 0; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); /* Updates png_ptr->pass */ - } - - if (png_ptr->pass == 2) /* Pass 1 might be empty */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - - if (png_ptr->pass == 4 && png_ptr->height <= 4) - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - - if (png_ptr->pass == 6 && png_ptr->height <= 4) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - - break; - } - - case 1: - { - int i; - for (i = 0; i < 8 && png_ptr->pass == 1; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - - if (png_ptr->pass == 2) /* Skip top 4 generated rows */ - { - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - - break; - } - - case 2: - { - int i; - - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - - for (i = 0; i < 4 && png_ptr->pass == 2; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - - if (png_ptr->pass == 4) /* Pass 3 might be empty */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - - break; - } - - case 3: - { - int i; - - for (i = 0; i < 4 && png_ptr->pass == 3; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - - if (png_ptr->pass == 4) /* Skip top two generated rows */ - { - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - - break; - } - - case 4: - { - int i; - - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - - for (i = 0; i < 2 && png_ptr->pass == 4; i++) - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - - if (png_ptr->pass == 6) /* Pass 5 might be empty */ - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - - break; - } - - case 5: - { - int i; - - for (i = 0; i < 2 && png_ptr->pass == 5; i++) - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } - - if (png_ptr->pass == 6) /* Skip top generated row */ - { - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - - break; - } - - default: - case 6: - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - - if (png_ptr->pass != 6) - break; - - png_push_have_row(png_ptr, NULL); - png_read_push_finish_row(png_ptr); - } - } - } - else - { - png_push_have_row(png_ptr, png_ptr->row_buf + 1); - png_read_push_finish_row(png_ptr); - } -} - -void /* PRIVATE */ -png_read_push_finish_row(png_structrp png_ptr) -{ - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; - - /* Start of interlace block in the y direction */ - static PNG_CONST png_byte png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1}; - - /* Offset to next interlace block in the y direction */ - static PNG_CONST png_byte png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2}; - - /* Height of interlace block. This is not currently used - if you need - * it, uncomment it here and in png.h - static PNG_CONST png_byte png_pass_height[] = {8, 8, 4, 4, 2, 2, 1}; - */ -#endif - - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - - do - { - png_ptr->pass++; - if ((png_ptr->pass == 1 && png_ptr->width < 5) || - (png_ptr->pass == 3 && png_ptr->width < 3) || - (png_ptr->pass == 5 && png_ptr->width < 2)) - png_ptr->pass++; - - if (png_ptr->pass > 7) - png_ptr->pass--; - - if (png_ptr->pass >= 7) - break; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - if (png_ptr->transformations & PNG_INTERLACE) - break; - - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - - } while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0); - } -} - -void /* PRIVATE */ -png_push_have_info(png_structrp png_ptr, png_inforp info_ptr) -{ - if (png_ptr->info_fn != NULL) - (*(png_ptr->info_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_end(png_structrp png_ptr, png_inforp info_ptr) -{ - if (png_ptr->end_fn != NULL) - (*(png_ptr->end_fn))(png_ptr, info_ptr); -} - -void /* PRIVATE */ -png_push_have_row(png_structrp png_ptr, png_bytep row) -{ - if (png_ptr->row_fn != NULL) - (*(png_ptr->row_fn))(png_ptr, row, png_ptr->row_number, - (int)png_ptr->pass); -} - -void PNGAPI -png_progressive_combine_row(png_const_structrp png_ptr, png_bytep old_row, - png_const_bytep new_row) -{ - if (png_ptr == NULL) - return; - - /* new_row is a flag here - if it is NULL then the app callback was called - * from an empty row (see the calls to png_struct::row_fn below), otherwise - * it must be png_ptr->row_buf+1 - */ - if (new_row != NULL) - png_combine_row(png_ptr, old_row, 1/*blocky display*/); -} - -void PNGAPI -png_set_progressive_read_fn(png_structrp png_ptr, png_voidp progressive_ptr, - png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, - png_progressive_end_ptr end_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->info_fn = info_fn; - png_ptr->row_fn = row_fn; - png_ptr->end_fn = end_fn; - - png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer); -} - -png_voidp PNGAPI -png_get_progressive_ptr(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return (NULL); - - return png_ptr->io_ptr; -} -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ diff --git a/png/pngpriv.h b/png/pngpriv.h deleted file mode 100755 index c498313..0000000 --- a/png/pngpriv.h +++ /dev/null @@ -1,1940 +0,0 @@ - -/* pngpriv.h - private declarations for use inside libpng - * - * For conditions of distribution and use, see copyright notice in png.h - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Last changed in libpng 1.6.10 [March 6, 1014]] - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -/* The symbols declared in this file (including the functions declared - * as extern) are PRIVATE. They are not part of the libpng public - * interface, and are not recommended for use by regular applications. - * Some of them may become public in the future; others may stay private, - * change in an incompatible way, or even disappear. - * Although the libpng users are not forbidden to include this header, - * they should be well aware of the issues that may arise from doing so. - */ - -#ifndef PNGPRIV_H -#define PNGPRIV_H - -/* Feature Test Macros. The following are defined here to ensure that correctly - * implemented libraries reveal the APIs libpng needs to build and hide those - * that are not needed and potentially damaging to the compilation. - * - * Feature Test Macros must be defined before any system header is included (see - * POSIX 1003.1 2.8.2 "POSIX Symbols." - * - * These macros only have an effect if the operating system supports either - * POSIX 1003.1 or C99, or both. On other operating systems (particularly - * Windows/Visual Studio) there is no effect; the OS specific tests below are - * still required (as of 2011-05-02.) - */ -#define _POSIX_SOURCE 1 /* Just the POSIX 1003.1 and C89 APIs */ - -#ifndef PNG_VERSION_INFO_ONLY -/* Standard library headers not required by png.h: */ -# include -# include -#endif - -#define PNGLIB_BUILD /*libpng is being built, not used*/ - -/* If HAVE_CONFIG_H is defined during the build then the build system must - * provide an appropriate "config.h" file on the include path. The header file - * must provide definitions as required below (search for "HAVE_CONFIG_H"); - * see configure.ac for more details of the requirements. The macro - * "PNG_NO_CONFIG_H" is provided for maintainers to test for dependencies on - * 'configure'; define this macro to prevent the configure build including the - * configure generated config.h. Libpng is expected to compile without *any* - * special build system support on a reasonably ANSI-C compliant system. - */ -#if defined(HAVE_CONFIG_H) && !defined(PNG_NO_CONFIG_H) -# include - - /* Pick up the definition of 'restrict' from config.h if it was read: */ -# define PNG_RESTRICT restrict -#endif - -/* To support symbol prefixing it is necessary to know *before* including png.h - * whether the fixed point (and maybe other) APIs are exported, because if they - * are not internal definitions may be required. This is handled below just - * before png.h is included, but load the configuration now if it is available. - */ -#ifndef PNGLCONF_H -# include "pnglibconf.h" -#endif - -/* Local renames may change non-exported API functions from png.h */ -#if defined(PNG_PREFIX) && !defined(PNGPREFIX_H) -# include "pngprefix.h" -#endif - -#ifdef PNG_USER_CONFIG -# include "pngusr.h" - /* These should have been defined in pngusr.h */ -# ifndef PNG_USER_PRIVATEBUILD -# define PNG_USER_PRIVATEBUILD "Custom libpng build" -# endif -# ifndef PNG_USER_DLLFNAME_POSTFIX -# define PNG_USER_DLLFNAME_POSTFIX "Cb" -# endif -#endif - -/* Compile time options. - * ===================== - * In a multi-arch build the compiler may compile the code several times for the - * same object module, producing different binaries for different architectures. - * When this happens configure-time setting of the target host options cannot be - * done and this interferes with the handling of the ARM NEON optimizations, and - * possibly other similar optimizations. Put additional tests here; in general - * this is needed when the same option can be changed at both compile time and - * run time depending on the target OS (i.e. iOS vs Android.) - * - * NOTE: symbol prefixing does not pass $(CFLAGS) to the preprocessor, because - * this is not possible with certain compilers (Oracle SUN OS CC), as a result - * it is necessary to ensure that all extern functions that *might* be used - * regardless of $(CFLAGS) get declared in this file. The test on __ARM_NEON__ - * below is one example of this behavior because it is controlled by the - * presence or not of -mfpu=neon on the GCC command line, it is possible to do - * this in $(CC), e.g. "CC=gcc -mfpu=neon", but people who build libpng rarely - * do this. - */ -#ifndef PNG_ARM_NEON_OPT - /* ARM NEON optimizations are being controlled by the compiler settings, - * typically the target FPU. If the FPU has been set to NEON (-mfpu=neon - * with GCC) then the compiler will define __ARM_NEON__ and we can rely - * unconditionally on NEON instructions not crashing, otherwise we must - * disable use of NEON instructions. - * - * NOTE: at present these optimizations depend on 'ALIGNED_MEMORY', so they - * can only be turned on automatically if that is supported too. If - * PNG_ARM_NEON_OPT is set in CPPFLAGS (to >0) then arm/arm_init.c will fail - * to compile with an appropriate #error if ALIGNED_MEMORY has been turned - * off. - */ -# if defined(__ARM_NEON__) && defined(PNG_ALIGNED_MEMORY_SUPPORTED) -# define PNG_ARM_NEON_OPT 2 -# else -# define PNG_ARM_NEON_OPT 0 -# endif -#endif - -#if PNG_ARM_NEON_OPT > 0 - /* NEON optimizations are to be at least considered by libpng, so enable the - * callbacks to do this. - */ -# define PNG_FILTER_OPTIMIZATIONS png_init_filter_functions_neon - - /* By default the 'intrinsics' code in arm/filter_neon_intrinsics.c is used - * if possible - if __ARM_NEON__ is set and the compiler version is not known - * to be broken. This is controlled by PNG_ARM_NEON_IMPLEMENTATION which can - * be: - * - * 1 The intrinsics code (the default with __ARM_NEON__) - * 2 The hand coded assembler (the default without __ARM_NEON__) - * - * It is possible to set PNG_ARM_NEON_IMPLEMENTATION in CPPFLAGS, however - * this is *NOT* supported and may cease to work even after a minor revision - * to libpng. It *is* valid to do this for testing purposes, e.g. speed - * testing or a new compiler, but the results should be communicated to the - * libpng implementation list for incorporation in the next minor release. - */ -# ifndef PNG_ARM_NEON_IMPLEMENTATION -# ifdef __ARM_NEON__ -# if defined(__clang__) - /* At present it is unknown by the libpng developers which versions - * of clang support the intrinsics, however some or perhaps all - * versions do not work with the assembler so this may be - * irrelevant, so just use the default (do nothing here.) - */ -# elif defined(__GNUC__) - /* GCC 4.5.4 NEON support is known to be broken. 4.6.3 is known to - * work, so if this *is* GCC, or G++, look for a version >4.5 - */ -# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6) -# define PNG_ARM_NEON_IMPLEMENTATION 2 -# endif /* no GNUC support */ -# endif /* __GNUC__ */ -# else /* !defined __ARM_NEON__ */ - /* The 'intrinsics' code simply won't compile without this -mfpu=neon: - */ -# define PNG_ARM_NEON_IMPLEMENTATION 2 -# endif /* __ARM_NEON__ */ -# endif /* !defined PNG_ARM_NEON_IMPLEMENTATION */ - -# ifndef PNG_ARM_NEON_IMPLEMENTATION - /* Use the intrinsics code by default. */ -# define PNG_ARM_NEON_IMPLEMENTATION 1 -# endif -#endif /* PNG_ARM_NEON_OPT > 0 */ - -/* Is this a build of a DLL where compilation of the object modules requires - * different preprocessor settings to those required for a simple library? If - * so PNG_BUILD_DLL must be set. - * - * If libpng is used inside a DLL but that DLL does not export the libpng APIs - * PNG_BUILD_DLL must not be set. To avoid the code below kicking in build a - * static library of libpng then link the DLL against that. - */ -#ifndef PNG_BUILD_DLL -# ifdef DLL_EXPORT - /* This is set by libtool when files are compiled for a DLL; libtool - * always compiles twice, even on systems where it isn't necessary. Set - * PNG_BUILD_DLL in case it is necessary: - */ -# define PNG_BUILD_DLL -# else -# ifdef _WINDLL - /* This is set by the Microsoft Visual Studio IDE in projects that - * build a DLL. It can't easily be removed from those projects (it - * isn't visible in the Visual Studio UI) so it is a fairly reliable - * indication that PNG_IMPEXP needs to be set to the DLL export - * attributes. - */ -# define PNG_BUILD_DLL -# else -# ifdef __DLL__ - /* This is set by the Borland C system when compiling for a DLL - * (as above.) - */ -# define PNG_BUILD_DLL -# else - /* Add additional compiler cases here. */ -# endif -# endif -# endif -#endif /* Setting PNG_BUILD_DLL if required */ - -/* See pngconf.h for more details: the builder of the library may set this on - * the command line to the right thing for the specific compilation system or it - * may be automagically set above (at present we know of no system where it does - * need to be set on the command line.) - * - * PNG_IMPEXP must be set here when building the library to prevent pngconf.h - * setting it to the "import" setting for a DLL build. - */ -#ifndef PNG_IMPEXP -# ifdef PNG_BUILD_DLL -# define PNG_IMPEXP PNG_DLL_EXPORT -# else - /* Not building a DLL, or the DLL doesn't require specific export - * definitions. - */ -# define PNG_IMPEXP -# endif -#endif - -/* No warnings for private or deprecated functions in the build: */ -#ifndef PNG_DEPRECATED -# define PNG_DEPRECATED -#endif -#ifndef PNG_PRIVATE -# define PNG_PRIVATE -#endif - -/* Symbol preprocessing support. - * - * To enable listing global, but internal, symbols the following macros should - * always be used to declare an extern data or function object in this file. - */ -#ifndef PNG_INTERNAL_DATA -# define PNG_INTERNAL_DATA(type, name, array) extern type name array -#endif - -#ifndef PNG_INTERNAL_FUNCTION -# define PNG_INTERNAL_FUNCTION(type, name, args, attributes)\ - extern PNG_FUNCTION(type, name, args, PNG_EMPTY attributes) -#endif - -#ifndef PNG_INTERNAL_CALLBACK -# define PNG_INTERNAL_CALLBACK(type, name, args, attributes)\ - extern PNG_FUNCTION(type, (PNGCBAPI name), args, PNG_EMPTY attributes) -#endif - -/* If floating or fixed point APIs are disabled they may still be compiled - * internally. To handle this make sure they are declared as the appropriate - * internal extern function (otherwise the symbol prefixing stuff won't work and - * the functions will be used without definitions.) - * - * NOTE: although all the API functions are declared here they are not all - * actually built! Because the declarations are still made it is necessary to - * fake out types that they depend on. - */ -#ifndef PNG_FP_EXPORT -# ifndef PNG_FLOATING_POINT_SUPPORTED -# define PNG_FP_EXPORT(ordinal, type, name, args)\ - PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY); -# ifndef PNG_VERSION_INFO_ONLY - typedef struct png_incomplete png_double; - typedef png_double* png_doublep; - typedef const png_double* png_const_doublep; - typedef png_double** png_doublepp; -# endif -# endif -#endif -#ifndef PNG_FIXED_EXPORT -# ifndef PNG_FIXED_POINT_SUPPORTED -# define PNG_FIXED_EXPORT(ordinal, type, name, args)\ - PNG_INTERNAL_FUNCTION(type, name, args, PNG_EMPTY); -# endif -#endif - -#include "png.h" - -/* pngconf.h does not set PNG_DLL_EXPORT unless it is required, so: */ -#ifndef PNG_DLL_EXPORT -# define PNG_DLL_EXPORT -#endif - -/* SECURITY and SAFETY: - * - * By default libpng is built without any internal limits on image size, - * individual heap (png_malloc) allocations or the total amount of memory used. - * If PNG_SAFE_LIMITS_SUPPORTED is defined, however, the limits below are used - * (unless individually overridden). These limits are believed to be fairly - * safe, but builders of secure systems should verify the values against the - * real system capabilities. - */ -#ifdef PNG_SAFE_LIMITS_SUPPORTED - /* 'safe' limits */ -# ifndef PNG_USER_WIDTH_MAX -# define PNG_USER_WIDTH_MAX 1000000 -# endif -# ifndef PNG_USER_HEIGHT_MAX -# define PNG_USER_HEIGHT_MAX 1000000 -# endif -# ifndef PNG_USER_CHUNK_CACHE_MAX -# define PNG_USER_CHUNK_CACHE_MAX 128 -# endif -# ifndef PNG_USER_CHUNK_MALLOC_MAX -# define PNG_USER_CHUNK_MALLOC_MAX 8000000 -# endif -#else - /* values for no limits */ -# ifndef PNG_USER_WIDTH_MAX -# define PNG_USER_WIDTH_MAX 0x7fffffff -# endif -# ifndef PNG_USER_HEIGHT_MAX -# define PNG_USER_HEIGHT_MAX 0x7fffffff -# endif -# ifndef PNG_USER_CHUNK_CACHE_MAX -# define PNG_USER_CHUNK_CACHE_MAX 0 -# endif -# ifndef PNG_USER_CHUNK_MALLOC_MAX -# define PNG_USER_CHUNK_MALLOC_MAX 0 -# endif -#endif - -/* Moved to pngpriv.h at libpng-1.5.0 */ -/* NOTE: some of these may have been used in external applications as - * these definitions were exposed in pngconf.h prior to 1.5. - */ - -/* If you are running on a machine where you cannot allocate more - * than 64K of memory at once, uncomment this. While libpng will not - * normally need that much memory in a chunk (unless you load up a very - * large file), zlib needs to know how big of a chunk it can use, and - * libpng thus makes sure to check any memory allocation to verify it - * will fit into memory. - * - * zlib provides 'MAXSEG_64K' which, if defined, indicates the - * same limit and pngconf.h (already included) sets the limit - * if certain operating systems are detected. - */ -#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) -# define PNG_MAX_MALLOC_64K -#endif - -#ifndef PNG_UNUSED -/* Unused formal parameter warnings are silenced using the following macro - * which is expected to have no bad effects on performance (optimizing - * compilers will probably remove it entirely). Note that if you replace - * it with something other than whitespace, you must include the terminating - * semicolon. - */ -# define PNG_UNUSED(param) (void)param; -#endif - -/* Just a little check that someone hasn't tried to define something - * contradictory. - */ -#if (PNG_ZBUF_SIZE > 65536L) && defined(PNG_MAX_MALLOC_64K) -# undef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 65536L -#endif - -/* If warnings or errors are turned off the code is disabled or redirected here. - * From 1.5.4 functions have been added to allow very limited formatting of - * error and warning messages - this code will also be disabled here. - */ -#ifdef PNG_WARNINGS_SUPPORTED -# define PNG_WARNING_PARAMETERS(p) png_warning_parameters p; -#else -# define png_warning_parameter(p,number,string) ((void)0) -# define png_warning_parameter_unsigned(p,number,format,value) ((void)0) -# define png_warning_parameter_signed(p,number,format,value) ((void)0) -# define png_formatted_warning(pp,p,message) ((void)(pp)) -# define PNG_WARNING_PARAMETERS(p) -#endif -#ifndef PNG_ERROR_TEXT_SUPPORTED -# define png_fixed_error(s1,s2) png_err(s1) -#endif - -/* C allows up-casts from (void*) to any pointer and (const void*) to any - * pointer to a const object. C++ regards this as a type error and requires an - * explicit, static, cast and provides the static_cast<> rune to ensure that - * const is not cast away. - */ -#ifdef __cplusplus -# define png_voidcast(type, value) static_cast(value) -# define png_constcast(type, value) const_cast(value) -# define png_aligncast(type, value) \ - static_cast(static_cast(value)) -# define png_aligncastconst(type, value) \ - static_cast(static_cast(value)) -#else -# define png_voidcast(type, value) (value) -# define png_constcast(type, value) ((type)(value)) -# define png_aligncast(type, value) ((void*)(value)) -# define png_aligncastconst(type, value) ((const void*)(value)) -#endif /* __cplusplus */ - -/* Some fixed point APIs are still required even if not exported because - * they get used by the corresponding floating point APIs. This magic - * deals with this: - */ -#ifdef PNG_FIXED_POINT_SUPPORTED -# define PNGFAPI PNGAPI -#else -# define PNGFAPI /* PRIVATE */ -#endif - -#ifndef PNG_VERSION_INFO_ONLY -/* Other defines specific to compilers can go here. Try to keep - * them inside an appropriate ifdef/endif pair for portability. - */ -#if defined(PNG_FLOATING_POINT_SUPPORTED) ||\ - defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) - /* png.c requires the following ANSI-C constants if the conversion of - * floating point to ASCII is implemented therein: - * - * DBL_DIG Maximum number of decimal digits (can be set to any constant) - * DBL_MIN Smallest normalized fp number (can be set to an arbitrary value) - * DBL_MAX Maximum floating point number (can be set to an arbitrary value) - */ -# include - -# if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \ - defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC) - /* We need to check that hasn't already been included earlier - * as it seems it doesn't agree with , yet we should really use - * if possible. - */ -# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__) -# include -# endif -# else -# include -# endif -# if defined(_AMIGA) && defined(__SASC) && defined(_M68881) - /* Amiga SAS/C: We must include builtin FPU functions when compiling using - * MATH=68881 - */ -# include -# endif -#endif - -/* This provides the non-ANSI (far) memory allocation routines. */ -#if defined(__TURBOC__) && defined(__MSDOS__) -# include -# include -#endif - -#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \ - defined(_WIN32) || defined(__WIN32__) -# include /* defines _WINDOWS_ macro */ -#endif -#endif /* PNG_VERSION_INFO_ONLY */ - -/* Moved here around 1.5.0beta36 from pngconf.h */ -/* Users may want to use these so they are not private. Any library - * functions that are passed far data must be model-independent. - */ - -/* Memory model/platform independent fns */ -#ifndef PNG_ABORT -# ifdef _WINDOWS_ -# define PNG_ABORT() ExitProcess(0) -# else -# define PNG_ABORT() abort() -# endif -#endif - -/* These macros may need to be architecture dependent. */ -#define PNG_ALIGN_NONE 0 /* do not use data alignment */ -#define PNG_ALIGN_ALWAYS 1 /* assume unaligned accesses are OK */ -#ifdef offsetof -# define PNG_ALIGN_OFFSET 2 /* use offsetof to determine alignment */ -#else -# define PNG_ALIGN_OFFSET -1 /* prevent the use of this */ -#endif -#define PNG_ALIGN_SIZE 3 /* use sizeof to determine alignment */ - -#ifndef PNG_ALIGN_TYPE - /* Default to using aligned access optimizations and requiring alignment to a - * multiple of the data type size. Override in a compiler specific fashion - * if necessary by inserting tests here: - */ -# define PNG_ALIGN_TYPE PNG_ALIGN_SIZE -#endif - -#if PNG_ALIGN_TYPE == PNG_ALIGN_SIZE - /* This is used because in some compiler implementations non-aligned - * structure members are supported, so the offsetof approach below fails. - * Set PNG_ALIGN_SIZE=0 for compiler combinations where unaligned access - * is good for performance. Do not do this unless you have tested the result - * and understand it. - */ -# define png_alignof(type) (sizeof (type)) -#else -# if PNG_ALIGN_TYPE == PNG_ALIGN_OFFSET -# define png_alignof(type) offsetof(struct{char c; type t;}, t) -# else -# if PNG_ALIGN_TYPE == PNG_ALIGN_ALWAYS -# define png_alignof(type) (1) -# endif - /* Else leave png_alignof undefined to prevent use thereof */ -# endif -#endif - -/* This implicitly assumes alignment is always to a power of 2. */ -#ifdef png_alignof -# define png_isaligned(ptr, type)\ - ((((const char*)ptr-(const char*)0) & (png_alignof(type)-1)) == 0) -#else -# define png_isaligned(ptr, type) 0 -#endif - -/* End of memory model/platform independent support */ -/* End of 1.5.0beta36 move from pngconf.h */ - -/* CONSTANTS and UTILITY MACROS - * These are used internally by libpng and not exposed in the API - */ - -/* Various modes of operation. Note that after an init, mode is set to - * zero automatically when the structure is created. Three of these - * are defined in png.h because they need to be visible to applications - * that call png_set_unknown_chunk(). - */ -/* #define PNG_HAVE_IHDR 0x01 (defined in png.h) */ -/* #define PNG_HAVE_PLTE 0x02 (defined in png.h) */ -#define PNG_HAVE_IDAT 0x04 -/* #define PNG_AFTER_IDAT 0x08 (defined in png.h) */ -#define PNG_HAVE_IEND 0x10 - /* 0x20 (unused) */ - /* 0x40 (unused) */ - /* 0x80 (unused) */ -#define PNG_HAVE_CHUNK_HEADER 0x100 -#define PNG_WROTE_tIME 0x200 -#define PNG_WROTE_INFO_BEFORE_PLTE 0x400 -#define PNG_BACKGROUND_IS_GRAY 0x800 -#define PNG_HAVE_PNG_SIGNATURE 0x1000 -#define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000 /* Have another chunk after IDAT */ - /* 0x4000 (unused) */ -#define PNG_IS_READ_STRUCT 0x8000 /* Else is a write struct */ - -/* Flags for the transformations the PNG library does on the image data */ -#define PNG_BGR 0x0001 -#define PNG_INTERLACE 0x0002 -#define PNG_PACK 0x0004 -#define PNG_SHIFT 0x0008 -#define PNG_SWAP_BYTES 0x0010 -#define PNG_INVERT_MONO 0x0020 -#define PNG_QUANTIZE 0x0040 -#define PNG_COMPOSE 0x0080 /* Was PNG_BACKGROUND */ -#define PNG_BACKGROUND_EXPAND 0x0100 -#define PNG_EXPAND_16 0x0200 /* Added to libpng 1.5.2 */ -#define PNG_16_TO_8 0x0400 /* Becomes 'chop' in 1.5.4 */ -#define PNG_RGBA 0x0800 -#define PNG_EXPAND 0x1000 -#define PNG_GAMMA 0x2000 -#define PNG_GRAY_TO_RGB 0x4000 -#define PNG_FILLER 0x8000 -#define PNG_PACKSWAP 0x10000 -#define PNG_SWAP_ALPHA 0x20000 -#define PNG_STRIP_ALPHA 0x40000 -#define PNG_INVERT_ALPHA 0x80000 -#define PNG_USER_TRANSFORM 0x100000 -#define PNG_RGB_TO_GRAY_ERR 0x200000 -#define PNG_RGB_TO_GRAY_WARN 0x400000 -#define PNG_RGB_TO_GRAY 0x600000 /* two bits, RGB_TO_GRAY_ERR|WARN */ -#define PNG_ENCODE_ALPHA 0x800000 /* Added to libpng-1.5.4 */ -#define PNG_ADD_ALPHA 0x1000000 /* Added to libpng-1.2.7 */ -#define PNG_EXPAND_tRNS 0x2000000 /* Added to libpng-1.2.9 */ -#define PNG_SCALE_16_TO_8 0x4000000 /* Added to libpng-1.5.4 */ - /* 0x8000000 unused */ - /* 0x10000000 unused */ - /* 0x20000000 unused */ - /* 0x40000000 unused */ -/* Flags for png_create_struct */ -#define PNG_STRUCT_PNG 0x0001 -#define PNG_STRUCT_INFO 0x0002 - -/* Scaling factor for filter heuristic weighting calculations */ -#define PNG_WEIGHT_FACTOR (1<<(PNG_WEIGHT_SHIFT)) -#define PNG_COST_FACTOR (1<<(PNG_COST_SHIFT)) - -/* Flags for the png_ptr->flags rather than declaring a byte for each one */ -#define PNG_FLAG_ZLIB_CUSTOM_STRATEGY 0x0001 -#define PNG_FLAG_ZSTREAM_INITIALIZED 0x0002 /* Added to libpng-1.6.0 */ - /* 0x0004 unused */ -#define PNG_FLAG_ZSTREAM_ENDED 0x0008 /* Added to libpng-1.6.0 */ - /* 0x0010 unused */ - /* 0x0020 unused */ -#define PNG_FLAG_ROW_INIT 0x0040 -#define PNG_FLAG_FILLER_AFTER 0x0080 -#define PNG_FLAG_CRC_ANCILLARY_USE 0x0100 -#define PNG_FLAG_CRC_ANCILLARY_NOWARN 0x0200 -#define PNG_FLAG_CRC_CRITICAL_USE 0x0400 -#define PNG_FLAG_CRC_CRITICAL_IGNORE 0x0800 -#define PNG_FLAG_ASSUME_sRGB 0x1000 /* Added to libpng-1.5.4 */ -#define PNG_FLAG_OPTIMIZE_ALPHA 0x2000 /* Added to libpng-1.5.4 */ -#define PNG_FLAG_DETECT_UNINITIALIZED 0x4000 /* Added to libpng-1.5.4 */ -/* #define PNG_FLAG_KEEP_UNKNOWN_CHUNKS 0x8000 */ -/* #define PNG_FLAG_KEEP_UNSAFE_CHUNKS 0x10000 */ -#define PNG_FLAG_LIBRARY_MISMATCH 0x20000 -#define PNG_FLAG_STRIP_ERROR_NUMBERS 0x40000 -#define PNG_FLAG_STRIP_ERROR_TEXT 0x80000 -#define PNG_FLAG_BENIGN_ERRORS_WARN 0x100000 /* Added to libpng-1.4.0 */ -#define PNG_FLAG_APP_WARNINGS_WARN 0x200000 /* Added to libpng-1.6.0 */ -#define PNG_FLAG_APP_ERRORS_WARN 0x400000 /* Added to libpng-1.6.0 */ - /* 0x800000 unused */ - /* 0x1000000 unused */ - /* 0x2000000 unused */ - /* 0x4000000 unused */ - /* 0x8000000 unused */ - /* 0x10000000 unused */ - /* 0x20000000 unused */ - /* 0x40000000 unused */ - -#define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \ - PNG_FLAG_CRC_ANCILLARY_NOWARN) - -#define PNG_FLAG_CRC_CRITICAL_MASK (PNG_FLAG_CRC_CRITICAL_USE | \ - PNG_FLAG_CRC_CRITICAL_IGNORE) - -#define PNG_FLAG_CRC_MASK (PNG_FLAG_CRC_ANCILLARY_MASK | \ - PNG_FLAG_CRC_CRITICAL_MASK) - -/* Save typing and make code easier to understand */ - -#define PNG_COLOR_DIST(c1, c2) (abs((int)((c1).red) - (int)((c2).red)) + \ - abs((int)((c1).green) - (int)((c2).green)) + \ - abs((int)((c1).blue) - (int)((c2).blue))) - -/* Added to libpng-1.6.0: scale a 16-bit value in the range 0..65535 to 0..255 - * by dividing by 257 *with rounding*. This macro is exact for the given range. - * See the discourse in pngrtran.c png_do_scale_16_to_8. The values in the - * macro were established by experiment (modifying the added value). The macro - * has a second variant that takes a value already scaled by 255 and divides by - * 65535 - this has a maximum error of .502. Over the range 0..65535*65535 it - * only gives off-by-one errors and only for 0.5% (1 in 200) of the values. - */ -#define PNG_DIV65535(v24) (((v24) + 32895) >> 16) -#define PNG_DIV257(v16) PNG_DIV65535((png_uint_32)(v16) * 255) - -/* Added to libpng-1.2.6 JB */ -#define PNG_ROWBYTES(pixel_bits, width) \ - ((pixel_bits) >= 8 ? \ - ((png_size_t)(width) * (((png_size_t)(pixel_bits)) >> 3)) : \ - (( ((png_size_t)(width) * ((png_size_t)(pixel_bits))) + 7) >> 3) ) - -/* PNG_OUT_OF_RANGE returns true if value is outside the range - * ideal-delta..ideal+delta. Each argument is evaluated twice. - * "ideal" and "delta" should be constants, normally simple - * integers, "value" a variable. Added to libpng-1.2.6 JB - */ -#define PNG_OUT_OF_RANGE(value, ideal, delta) \ - ( (value) < (ideal)-(delta) || (value) > (ideal)+(delta) ) - -/* Conversions between fixed and floating point, only defined if - * required (to make sure the code doesn't accidentally use float - * when it is supposedly disabled.) - */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -/* The floating point conversion can't overflow, though it can and - * does lose accuracy relative to the original fixed point value. - * In practice this doesn't matter because png_fixed_point only - * stores numbers with very low precision. The png_ptr and s - * arguments are unused by default but are there in case error - * checking becomes a requirement. - */ -#define png_float(png_ptr, fixed, s) (.00001 * (fixed)) - -/* The fixed point conversion performs range checking and evaluates - * its argument multiple times, so must be used with care. The - * range checking uses the PNG specification values for a signed - * 32 bit fixed point value except that the values are deliberately - * rounded-to-zero to an integral value - 21474 (21474.83 is roughly - * (2^31-1) * 100000). 's' is a string that describes the value being - * converted. - * - * NOTE: this macro will raise a png_error if the range check fails, - * therefore it is normally only appropriate to use this on values - * that come from API calls or other sources where an out of range - * error indicates a programming error, not a data error! - * - * NOTE: by default this is off - the macro is not used - because the - * function call saves a lot of code. - */ -#ifdef PNG_FIXED_POINT_MACRO_SUPPORTED -#define png_fixed(png_ptr, fp, s) ((fp) <= 21474 && (fp) >= -21474 ?\ - ((png_fixed_point)(100000 * (fp))) : (png_fixed_error(png_ptr, s),0)) -#endif -/* else the corresponding function is defined below, inside the scope of the - * cplusplus test. - */ -#endif - -/* Constants for known chunk types. If you need to add a chunk, define the name - * here. For historical reasons these constants have the form png_; i.e. - * the prefix is lower case. Please use decimal values as the parameters to - * match the ISO PNG specification and to avoid relying on the C locale - * interpretation of character values. - * - * Prior to 1.5.6 these constants were strings, as of 1.5.6 png_uint_32 values - * are computed and a new macro (PNG_STRING_FROM_CHUNK) added to allow a string - * to be generated if required. - * - * PNG_32b correctly produces a value shifted by up to 24 bits, even on - * architectures where (int) is only 16 bits. - */ -#define PNG_32b(b,s) ((png_uint_32)(b) << (s)) -#define PNG_U32(b1,b2,b3,b4) \ - (PNG_32b(b1,24) | PNG_32b(b2,16) | PNG_32b(b3,8) | PNG_32b(b4,0)) - -/* Constants for known chunk types. - * - * MAINTAINERS: If you need to add a chunk, define the name here. - * For historical reasons these constants have the form png_; i.e. - * the prefix is lower case. Please use decimal values as the parameters to - * match the ISO PNG specification and to avoid relying on the C locale - * interpretation of character values. Please keep the list sorted. - * - * Notice that PNG_U32 is used to define a 32-bit value for the 4 byte chunk - * type. In fact the specification does not express chunk types this way, - * however using a 32-bit value means that the chunk type can be read from the - * stream using exactly the same code as used for a 32-bit unsigned value and - * can be examined far more efficiently (using one arithmetic compare). - * - * Prior to 1.5.6 the chunk type constants were expressed as C strings. The - * libpng API still uses strings for 'unknown' chunks and a macro, - * PNG_STRING_FROM_CHUNK, allows a string to be generated if required. Notice - * that for portable code numeric values must still be used; the string "IHDR" - * is not portable and neither is PNG_U32('I', 'H', 'D', 'R'). - * - * In 1.7.0 the definitions will be made public in png.h to avoid having to - * duplicate the same definitions in application code. - */ -#define png_IDAT PNG_U32( 73, 68, 65, 84) -#define png_IEND PNG_U32( 73, 69, 78, 68) -#define png_IHDR PNG_U32( 73, 72, 68, 82) -#define png_PLTE PNG_U32( 80, 76, 84, 69) -#define png_bKGD PNG_U32( 98, 75, 71, 68) -#define png_cHRM PNG_U32( 99, 72, 82, 77) -#define png_fRAc PNG_U32(102, 82, 65, 99) /* registered, not defined */ -#define png_gAMA PNG_U32(103, 65, 77, 65) -#define png_gIFg PNG_U32(103, 73, 70, 103) -#define png_gIFt PNG_U32(103, 73, 70, 116) /* deprecated */ -#define png_gIFx PNG_U32(103, 73, 70, 120) -#define png_hIST PNG_U32(104, 73, 83, 84) -#define png_iCCP PNG_U32(105, 67, 67, 80) -#define png_iTXt PNG_U32(105, 84, 88, 116) -#define png_oFFs PNG_U32(111, 70, 70, 115) -#define png_pCAL PNG_U32(112, 67, 65, 76) -#define png_pHYs PNG_U32(112, 72, 89, 115) -#define png_sBIT PNG_U32(115, 66, 73, 84) -#define png_sCAL PNG_U32(115, 67, 65, 76) -#define png_sPLT PNG_U32(115, 80, 76, 84) -#define png_sRGB PNG_U32(115, 82, 71, 66) -#define png_sTER PNG_U32(115, 84, 69, 82) -#define png_tEXt PNG_U32(116, 69, 88, 116) -#define png_tIME PNG_U32(116, 73, 77, 69) -#define png_tRNS PNG_U32(116, 82, 78, 83) -#define png_zTXt PNG_U32(122, 84, 88, 116) - -/* The following will work on (signed char*) strings, whereas the get_uint_32 - * macro will fail on top-bit-set values because of the sign extension. - */ -#define PNG_CHUNK_FROM_STRING(s)\ - PNG_U32(0xff&(s)[0], 0xff&(s)[1], 0xff&(s)[2], 0xff&(s)[3]) - -/* This uses (char), not (png_byte) to avoid warnings on systems where (char) is - * signed and the argument is a (char[]) This macro will fail miserably on - * systems where (char) is more than 8 bits. - */ -#define PNG_STRING_FROM_CHUNK(s,c)\ - (void)(((char*)(s))[0]=(char)((c)>>24), ((char*)(s))[1]=(char)((c)>>16),\ - ((char*)(s))[2]=(char)((c)>>8), ((char*)(s))[3]=(char)((c))) - -/* Do the same but terminate with a null character. */ -#define PNG_CSTRING_FROM_CHUNK(s,c)\ - (void)(PNG_STRING_FROM_CHUNK(s,c), ((char*)(s))[4] = 0) - -/* Test on flag values as defined in the spec (section 5.4): */ -#define PNG_CHUNK_ANCILLARY(c) (1 & ((c) >> 29)) -#define PNG_CHUNK_CRITICAL(c) (!PNG_CHUNK_ANCILLARY(c)) -#define PNG_CHUNK_PRIVATE(c) (1 & ((c) >> 21)) -#define PNG_CHUNK_RESERVED(c) (1 & ((c) >> 13)) -#define PNG_CHUNK_SAFE_TO_COPY(c) (1 & ((c) >> 5)) - -/* Gamma values (new at libpng-1.5.4): */ -#define PNG_GAMMA_MAC_OLD 151724 /* Assume '1.8' is really 2.2/1.45! */ -#define PNG_GAMMA_MAC_INVERSE 65909 -#define PNG_GAMMA_sRGB_INVERSE 45455 - -/* Almost everything below is C specific; the #defines above can be used in - * non-C code (so long as it is C-preprocessed) the rest of this stuff cannot. - */ -#ifndef PNG_VERSION_INFO_ONLY - -#include "pngstruct.h" -#include "pnginfo.h" - -/* Validate the include paths - the include path used to generate pnglibconf.h - * must match that used in the build, or we must be using pnglibconf.h.prebuilt: - */ -#if PNG_ZLIB_VERNUM != 0 && PNG_ZLIB_VERNUM != ZLIB_VERNUM -# error ZLIB_VERNUM != PNG_ZLIB_VERNUM \ - "-I (include path) error: see the notes in pngpriv.h" - /* This means that when pnglibconf.h was built the copy of zlib.h that it - * used is not the same as the one being used here. Because the build of - * libpng makes decisions to use inflateInit2 and inflateReset2 based on the - * zlib version number and because this affects handling of certain broken - * PNG files the -I directives must match. - * - * The most likely explanation is that you passed a -I in CFLAGS. This will - * not work; all the preprocessor directories and in particular all the -I - * directives must be in CPPFLAGS. - */ -#endif - -/* This is used for 16 bit gamma tables -- only the top level pointers are - * const; this could be changed: - */ -typedef const png_uint_16p * png_const_uint_16pp; - -/* Added to libpng-1.5.7: sRGB conversion tables */ -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) -#ifdef PNG_SIMPLIFIED_READ_SUPPORTED -PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_table, [256]); - /* Convert from an sRGB encoded value 0..255 to a 16-bit linear value, - * 0..65535. This table gives the closest 16-bit answers (no errors). - */ -#endif - -PNG_INTERNAL_DATA(const png_uint_16, png_sRGB_base, [512]); -PNG_INTERNAL_DATA(const png_byte, png_sRGB_delta, [512]); - -#define PNG_sRGB_FROM_LINEAR(linear) ((png_byte)((png_sRGB_base[(linear)>>15] +\ - ((((linear)&0x7fff)*png_sRGB_delta[(linear)>>15])>>12)) >> 8)) - /* Given a value 'linear' in the range 0..255*65535 calculate the 8-bit sRGB - * encoded value with maximum error 0.646365. Note that the input is not a - * 16-bit value; it has been multiplied by 255! */ -#endif /* PNG_SIMPLIFIED_READ/WRITE */ - - -/* Inhibit C++ name-mangling for libpng functions but not for system calls. */ -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -/* Internal functions; these are not exported from a DLL however because they - * are used within several of the C source files they have to be C extern. - * - * All of these functions must be declared with PNG_INTERNAL_FUNCTION. - */ - -/* Zlib support */ -#define PNG_UNEXPECTED_ZLIB_RETURN (-7) -PNG_INTERNAL_FUNCTION(void, png_zstream_error,(png_structrp png_ptr, int ret), - PNG_EMPTY); - /* Used by the zlib handling functions to ensure that z_stream::msg is always - * set before they return. - */ - -#ifdef PNG_WRITE_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_free_buffer_list,(png_structrp png_ptr, - png_compression_bufferp *list),PNG_EMPTY); - /* Free the buffer list used by the compressed write code. */ -#endif - -#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ - !defined(PNG_FIXED_POINT_MACRO_SUPPORTED) && \ - (defined(PNG_gAMA_SUPPORTED) || defined(PNG_cHRM_SUPPORTED) || \ - defined(PNG_sCAL_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED)) || \ - (defined(PNG_sCAL_SUPPORTED) && \ - defined(PNG_FLOATING_ARITHMETIC_SUPPORTED)) -PNG_INTERNAL_FUNCTION(png_fixed_point,png_fixed,(png_const_structrp png_ptr, - double fp, png_const_charp text),PNG_EMPTY); -#endif - -/* Check the user version string for compatibility, returns false if the version - * numbers aren't compatible. - */ -PNG_INTERNAL_FUNCTION(int,png_user_version_check,(png_structrp png_ptr, - png_const_charp user_png_ver),PNG_EMPTY); - -/* Internal base allocator - no messages, NULL on failure to allocate. This - * does, however, call the application provided allocator and that could call - * png_error (although that would be a bug in the application implementation.) - */ -PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_base,(png_const_structrp png_ptr, - png_alloc_size_t size),PNG_ALLOCATED); - -#if defined(PNG_TEXT_SUPPORTED) || defined(PNG_sPLT_SUPPORTED) ||\ - defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) -/* Internal array allocator, outputs no error or warning messages on failure, - * just returns NULL. - */ -PNG_INTERNAL_FUNCTION(png_voidp,png_malloc_array,(png_const_structrp png_ptr, - int nelements, size_t element_size),PNG_ALLOCATED); - -/* The same but an existing array is extended by add_elements. This function - * also memsets the new elements to 0 and copies the old elements. The old - * array is not freed or altered. - */ -PNG_INTERNAL_FUNCTION(png_voidp,png_realloc_array,(png_const_structrp png_ptr, - png_const_voidp array, int old_elements, int add_elements, - size_t element_size),PNG_ALLOCATED); -#endif /* text, sPLT or unknown chunks */ - -/* Magic to create a struct when there is no struct to call the user supplied - * memory allocators. Because error handling has not been set up the memory - * handlers can't safely call png_error, but this is an obscure and undocumented - * restriction so libpng has to assume that the 'free' handler, at least, might - * call png_error. - */ -PNG_INTERNAL_FUNCTION(png_structp,png_create_png_struct, - (png_const_charp user_png_ver, png_voidp error_ptr, png_error_ptr error_fn, - png_error_ptr warn_fn, png_voidp mem_ptr, png_malloc_ptr malloc_fn, - png_free_ptr free_fn),PNG_ALLOCATED); - -/* Free memory from internal libpng struct */ -PNG_INTERNAL_FUNCTION(void,png_destroy_png_struct,(png_structrp png_ptr), - PNG_EMPTY); - -/* Free an allocated jmp_buf (always succeeds) */ -PNG_INTERNAL_FUNCTION(void,png_free_jmpbuf,(png_structrp png_ptr),PNG_EMPTY); - -/* Function to allocate memory for zlib. PNGAPI is disallowed. */ -PNG_INTERNAL_FUNCTION(voidpf,png_zalloc,(voidpf png_ptr, uInt items, uInt size), - PNG_ALLOCATED); - -/* Function to free memory for zlib. PNGAPI is disallowed. */ -PNG_INTERNAL_FUNCTION(void,png_zfree,(voidpf png_ptr, voidpf ptr),PNG_EMPTY); - -/* Next four functions are used internally as callbacks. PNGCBAPI is required - * but not PNG_EXPORT. PNGAPI added at libpng version 1.2.3, changed to - * PNGCBAPI at 1.5.0 - */ - -PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_read_data,(png_structp png_ptr, - png_bytep data, png_size_t length),PNG_EMPTY); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_push_fill_buffer,(png_structp png_ptr, - png_bytep buffer, png_size_t length),PNG_EMPTY); -#endif - -PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_write_data,(png_structp png_ptr, - png_bytep data, png_size_t length),PNG_EMPTY); - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -# ifdef PNG_STDIO_SUPPORTED -PNG_INTERNAL_FUNCTION(void PNGCBAPI,png_default_flush,(png_structp png_ptr), - PNG_EMPTY); -# endif -#endif - -/* Reset the CRC variable */ -PNG_INTERNAL_FUNCTION(void,png_reset_crc,(png_structrp png_ptr),PNG_EMPTY); - -/* Write the "data" buffer to whatever output you are using */ -PNG_INTERNAL_FUNCTION(void,png_write_data,(png_structrp png_ptr, - png_const_bytep data, png_size_t length),PNG_EMPTY); - -/* Read and check the PNG file signature */ -PNG_INTERNAL_FUNCTION(void,png_read_sig,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); - -/* Read the chunk header (length + type name) */ -PNG_INTERNAL_FUNCTION(png_uint_32,png_read_chunk_header,(png_structrp png_ptr), - PNG_EMPTY); - -/* Read data from whatever input you are using into the "data" buffer */ -PNG_INTERNAL_FUNCTION(void,png_read_data,(png_structrp png_ptr, png_bytep data, - png_size_t length),PNG_EMPTY); - -/* Read bytes into buf, and update png_ptr->crc */ -PNG_INTERNAL_FUNCTION(void,png_crc_read,(png_structrp png_ptr, png_bytep buf, - png_uint_32 length),PNG_EMPTY); - -/* Read "skip" bytes, read the file crc, and (optionally) verify png_ptr->crc */ -PNG_INTERNAL_FUNCTION(int,png_crc_finish,(png_structrp png_ptr, - png_uint_32 skip),PNG_EMPTY); - -/* Read the CRC from the file and compare it to the libpng calculated CRC */ -PNG_INTERNAL_FUNCTION(int,png_crc_error,(png_structrp png_ptr),PNG_EMPTY); - -/* Calculate the CRC over a section of data. Note that we are only - * passing a maximum of 64K on systems that have this as a memory limit, - * since this is the maximum buffer size we can specify. - */ -PNG_INTERNAL_FUNCTION(void,png_calculate_crc,(png_structrp png_ptr, - png_const_bytep ptr, png_size_t length),PNG_EMPTY); - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_flush,(png_structrp png_ptr),PNG_EMPTY); -#endif - -/* Write various chunks */ - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. - */ -PNG_INTERNAL_FUNCTION(void,png_write_IHDR,(png_structrp png_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, int color_type, - int compression_method, int filter_method, int interlace_method),PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_write_PLTE,(png_structrp png_ptr, - png_const_colorp palette, png_uint_32 num_pal),PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_compress_IDAT,(png_structrp png_ptr, - png_const_bytep row_data, png_alloc_size_t row_data_length, int flush), - PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_write_IEND,(png_structrp png_ptr),PNG_EMPTY); - -#ifdef PNG_WRITE_gAMA_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_gAMA_fixed,(png_structrp png_ptr, - png_fixed_point file_gamma),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_sBIT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_sBIT,(png_structrp png_ptr, - png_const_color_8p sbit, int color_type),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_cHRM_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_cHRM_fixed,(png_structrp png_ptr, - const png_xy *xy), PNG_EMPTY); - /* The xy value must have been previously validated */ -#endif - -#ifdef PNG_WRITE_sRGB_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_sRGB,(png_structrp png_ptr, - int intent),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_iCCP_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_iCCP,(png_structrp png_ptr, - png_const_charp name, png_const_bytep profile), PNG_EMPTY); - /* The profile must have been previously validated for correctness, the - * length comes from the first four bytes. Only the base, deflate, - * compression is supported. - */ -#endif - -#ifdef PNG_WRITE_sPLT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_sPLT,(png_structrp png_ptr, - png_const_sPLT_tp palette),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_tRNS_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_tRNS,(png_structrp png_ptr, - png_const_bytep trans, png_const_color_16p values, int number, - int color_type),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_bKGD_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_bKGD,(png_structrp png_ptr, - png_const_color_16p values, int color_type),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_hIST_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_hIST,(png_structrp png_ptr, - png_const_uint_16p hist, int num_hist),PNG_EMPTY); -#endif - -/* Chunks that have keywords */ -#ifdef PNG_WRITE_tEXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_tEXt,(png_structrp png_ptr, - png_const_charp key, png_const_charp text, png_size_t text_len),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_zTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_zTXt,(png_structrp png_ptr, png_const_charp - key, png_const_charp text, png_size_t text_len, int compression),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_iTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_iTXt,(png_structrp png_ptr, - int compression, png_const_charp key, png_const_charp lang, - png_const_charp lang_key, png_const_charp text),PNG_EMPTY); -#endif - -#ifdef PNG_TEXT_SUPPORTED /* Added at version 1.0.14 and 1.2.4 */ -PNG_INTERNAL_FUNCTION(int,png_set_text_2,(png_const_structrp png_ptr, - png_inforp info_ptr, png_const_textp text_ptr, int num_text),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_oFFs_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_oFFs,(png_structrp png_ptr, - png_int_32 x_offset, png_int_32 y_offset, int unit_type),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_pCAL_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_pCAL,(png_structrp png_ptr, - png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams, - png_const_charp units, png_charpp params),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_pHYs_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_pHYs,(png_structrp png_ptr, - png_uint_32 x_pixels_per_unit, png_uint_32 y_pixels_per_unit, - int unit_type),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_tIME_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_tIME,(png_structrp png_ptr, - png_const_timep mod_time),PNG_EMPTY); -#endif - -#ifdef PNG_WRITE_sCAL_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_write_sCAL_s,(png_structrp png_ptr, - int unit, png_const_charp width, png_const_charp height),PNG_EMPTY); -#endif - -/* Called when finished processing a row of data */ -PNG_INTERNAL_FUNCTION(void,png_write_finish_row,(png_structrp png_ptr), - PNG_EMPTY); - -/* Internal use only. Called before first row of data */ -PNG_INTERNAL_FUNCTION(void,png_write_start_row,(png_structrp png_ptr), - PNG_EMPTY); - -/* Combine a row of data, dealing with alpha, etc. if requested. 'row' is an - * array of png_ptr->width pixels. If the image is not interlaced or this - * is the final pass this just does a memcpy, otherwise the "display" flag - * is used to determine whether to copy pixels that are not in the current pass. - * - * Because 'png_do_read_interlace' (below) replicates pixels this allows this - * function to achieve the documented 'blocky' appearance during interlaced read - * if display is 1 and the 'sparkle' appearance, where existing pixels in 'row' - * are not changed if they are not in the current pass, when display is 0. - * - * 'display' must be 0 or 1, otherwise the memcpy will be done regardless. - * - * The API always reads from the png_struct row buffer and always assumes that - * it is full width (png_do_read_interlace has already been called.) - * - * This function is only ever used to write to row buffers provided by the - * caller of the relevant libpng API and the row must have already been - * transformed by the read transformations. - * - * The PNG_USE_COMPILE_TIME_MASKS option causes generation of pre-computed - * bitmasks for use within the code, otherwise runtime generated masks are used. - * The default is compile time masks. - */ -#ifndef PNG_USE_COMPILE_TIME_MASKS -# define PNG_USE_COMPILE_TIME_MASKS 1 -#endif -PNG_INTERNAL_FUNCTION(void,png_combine_row,(png_const_structrp png_ptr, - png_bytep row, int display),PNG_EMPTY); - -#ifdef PNG_READ_INTERLACING_SUPPORTED -/* Expand an interlaced row: the 'row_info' describes the pass data that has - * been read in and must correspond to the pixels in 'row', the pixels are - * expanded (moved apart) in 'row' to match the final layout, when doing this - * the pixels are *replicated* to the intervening space. This is essential for - * the correct operation of png_combine_row, above. - */ -PNG_INTERNAL_FUNCTION(void,png_do_read_interlace,(png_row_infop row_info, - png_bytep row, int pass, png_uint_32 transformations),PNG_EMPTY); -#endif - -/* GRR TO DO (2.0 or whenever): simplify other internal calling interfaces */ - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED -/* Grab pixels out of a row for an interlaced pass */ -PNG_INTERNAL_FUNCTION(void,png_do_write_interlace,(png_row_infop row_info, - png_bytep row, int pass),PNG_EMPTY); -#endif - -/* Unfilter a row: check the filter value before calling this, there is no point - * calling it for PNG_FILTER_VALUE_NONE. - */ -PNG_INTERNAL_FUNCTION(void,png_read_filter_row,(png_structrp pp, png_row_infop - row_info, png_bytep row, png_const_bytep prev_row, int filter),PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_up_neon,(png_row_infop row_info, - png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg3_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_avg4_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth3_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_neon,(png_row_infop - row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY); - -/* Choose the best filter to use and filter the row data */ -PNG_INTERNAL_FUNCTION(void,png_write_find_filter,(png_structrp png_ptr, - png_row_infop row_info),PNG_EMPTY); - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_read_IDAT_data,(png_structrp png_ptr, - png_bytep output, png_alloc_size_t avail_out),PNG_EMPTY); - /* Read 'avail_out' bytes of data from the IDAT stream. If the output buffer - * is NULL the function checks, instead, for the end of the stream. In this - * case a benign error will be issued if the stream end is not found or if - * extra data has to be consumed. - */ -PNG_INTERNAL_FUNCTION(void,png_read_finish_IDAT,(png_structrp png_ptr), - PNG_EMPTY); - /* This cleans up when the IDAT LZ stream does not end when the last image - * byte is read; there is still some pending input. - */ - -PNG_INTERNAL_FUNCTION(void,png_read_finish_row,(png_structrp png_ptr), - PNG_EMPTY); - /* Finish a row while reading, dealing with interlacing passes, etc. */ -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -/* Initialize the row buffers, etc. */ -PNG_INTERNAL_FUNCTION(void,png_read_start_row,(png_structrp png_ptr),PNG_EMPTY); - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -/* Optional call to update the users info structure */ -PNG_INTERNAL_FUNCTION(void,png_read_transform_info,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -#endif - -/* Shared transform functions, defined in pngtran.c */ -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_strip_channel,(png_row_infop row_info, - png_bytep row, int at_start),PNG_EMPTY); -#endif - -#ifdef PNG_16BIT_SUPPORTED -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_swap,(png_row_infop row_info, - png_bytep row),PNG_EMPTY); -#endif -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED) || \ - defined(PNG_WRITE_PACKSWAP_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_packswap,(png_row_infop row_info, - png_bytep row),PNG_EMPTY); -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_invert,(png_row_infop row_info, - png_bytep row),PNG_EMPTY); -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_bgr,(png_row_infop row_info, - png_bytep row),PNG_EMPTY); -#endif - -/* The following decodes the appropriate chunks, and does error correction, - * then calls the appropriate callback for the chunk if it is valid. - */ - -/* Decode the IHDR chunk */ -PNG_INTERNAL_FUNCTION(void,png_handle_IHDR,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_handle_PLTE,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_handle_IEND,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); - -#ifdef PNG_READ_bKGD_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_bKGD,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_cHRM_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_cHRM,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_gAMA_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_gAMA,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_hIST_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_hIST,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_iCCP_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_iCCP,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#ifdef PNG_READ_iTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_iTXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_oFFs_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_oFFs,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_pCAL_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_pCAL,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_pHYs_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_pHYs,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_sBIT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_sBIT,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_sCAL_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_sCAL,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_sPLT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_sPLT,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#ifdef PNG_READ_sRGB_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_sRGB,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_tEXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_tEXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_tIME_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_tIME,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_tRNS_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_tRNS,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -#ifdef PNG_READ_zTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_handle_zTXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -#endif - -PNG_INTERNAL_FUNCTION(void,png_check_chunk_name,(png_structrp png_ptr, - png_uint_32 chunk_name),PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_handle_unknown,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length, int keep),PNG_EMPTY); - /* This is the function that gets called for unknown chunks. The 'keep' - * argument is either non-zero for a known chunk that has been set to be - * handled as unknown or zero for an unknown chunk. By default the function - * just skips the chunk or errors out if it is critical. - */ - -#if defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) ||\ - defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED) -PNG_INTERNAL_FUNCTION(int,png_chunk_unknown_handling, - (png_const_structrp png_ptr, png_uint_32 chunk_name),PNG_EMPTY); - /* Exactly as the API png_handle_as_unknown() except that the argument is a - * 32-bit chunk name, not a string. - */ -#endif /* READ_UNKNOWN_CHUNKS || HANDLE_AS_UNKNOWN */ - -/* Handle the transformations for reading and writing */ -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_do_read_transformations,(png_structrp png_ptr, - png_row_infop row_info),PNG_EMPTY); -#endif -#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_do_write_transformations,(png_structrp png_ptr, - png_row_infop row_info),PNG_EMPTY); -#endif - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_init_read_transformations,(png_structrp png_ptr), - PNG_EMPTY); -#endif - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_push_read_chunk,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_sig,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_check_crc,(png_structrp png_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_crc_skip,(png_structrp png_ptr, - png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_crc_finish,(png_structrp png_ptr), - PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_save_buffer,(png_structrp png_ptr), - PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_restore_buffer,(png_structrp png_ptr, - png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_IDAT,(png_structrp png_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_process_IDAT_data,(png_structrp png_ptr, - png_bytep buffer, png_size_t buffer_length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_process_row,(png_structrp png_ptr), - PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_handle_unknown,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_have_info,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr, - png_bytep row),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_read_push_finish_row,(png_structrp png_ptr), - PNG_EMPTY); -# ifdef PNG_READ_tEXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_push_handle_tEXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_tEXt,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -# endif -# ifdef PNG_READ_zTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_push_handle_zTXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_zTXt,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -# endif -# ifdef PNG_READ_iTXt_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_push_handle_iTXt,(png_structrp png_ptr, - png_inforp info_ptr, png_uint_32 length),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_push_read_iTXt,(png_structrp png_ptr, - png_inforp info_ptr),PNG_EMPTY); -# endif - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -/* Added at libpng version 1.6.0 */ -#ifdef PNG_GAMMA_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_fixed_point gAMA), PNG_EMPTY); - /* Set the colorspace gamma with a value provided by the application or by - * the gAMA chunk on read. The value will override anything set by an ICC - * profile. - */ - -PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr, - png_inforp info_ptr), PNG_EMPTY); - /* Synchronize the info 'valid' flags with the colorspace */ - -PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr, - png_inforp info_ptr), PNG_EMPTY); - /* Copy the png_struct colorspace to the info_struct and call the above to - * synchronize the flags. Checks for NULL info_ptr and does nothing. - */ -#endif - -/* Added at libpng version 1.4.0 */ -#ifdef PNG_COLORSPACE_SUPPORTED -/* These internal functions are for maintaining the colorspace structure within - * a png_info or png_struct (or, indeed, both). - */ -PNG_INTERNAL_FUNCTION(int,png_colorspace_set_chromaticities, - (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_xy *xy, - int preferred), PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(int,png_colorspace_set_endpoints, - (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_XYZ *XYZ, - int preferred), PNG_EMPTY); - -#ifdef PNG_sRGB_SUPPORTED -PNG_INTERNAL_FUNCTION(int,png_colorspace_set_sRGB,(png_const_structrp png_ptr, - png_colorspacerp colorspace, int intent), PNG_EMPTY); - /* This does set the colorspace gAMA and cHRM values too, but doesn't set the - * flags to write them, if it returns false there was a problem and an error - * message has already been output (but the colorspace may still need to be - * synced to record the invalid flag). - */ -#endif /* sRGB */ - -#ifdef PNG_iCCP_SUPPORTED -PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_const_charp name, - png_uint_32 profile_length, png_const_bytep profile, int color_type), - PNG_EMPTY); - /* The 'name' is used for information only */ - -/* Routines for checking parts of an ICC profile. */ -PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_const_charp name, - png_uint_32 profile_length), PNG_EMPTY); -PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_const_charp name, - png_uint_32 profile_length, - png_const_bytep profile /* first 132 bytes only */, int color_type), - PNG_EMPTY); -PNG_INTERNAL_FUNCTION(int,png_icc_check_tag_table,(png_const_structrp png_ptr, - png_colorspacerp colorspace, png_const_charp name, - png_uint_32 profile_length, - png_const_bytep profile /* header plus whole tag table */), PNG_EMPTY); -#ifdef PNG_sRGB_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_icc_set_sRGB,( - png_const_structrp png_ptr, png_colorspacerp colorspace, - png_const_bytep profile, uLong adler), PNG_EMPTY); - /* 'adler' is the Adler32 checksum of the uncompressed profile data. It may - * be zero to indicate that it is not available. It is used, if provided, - * as a fast check on the profile when checking to see if it is sRGB. - */ -#endif -#endif /* iCCP */ - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_colorspace_set_rgb_coefficients, - (png_structrp png_ptr), PNG_EMPTY); - /* Set the rgb_to_gray coefficients from the colorspace Y values */ -#endif /* READ_RGB_TO_GRAY */ -#endif /* COLORSPACE */ - -/* Added at libpng version 1.4.0 */ -PNG_INTERNAL_FUNCTION(void,png_check_IHDR,(png_const_structrp png_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_type, int compression_type, - int filter_type),PNG_EMPTY); - -/* Added at libpng version 1.5.10 */ -#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \ - defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_do_check_palette_indexes, - (png_structrp png_ptr, png_row_infop row_info),PNG_EMPTY); -#endif - -#if defined(PNG_FLOATING_POINT_SUPPORTED) && defined(PNG_ERROR_TEXT_SUPPORTED) -PNG_INTERNAL_FUNCTION(void,png_fixed_error,(png_const_structrp png_ptr, - png_const_charp name),PNG_NORETURN); -#endif - -/* Puts 'string' into 'buffer' at buffer[pos], taking care never to overwrite - * the end. Always leaves the buffer nul terminated. Never errors out (and - * there is no error code.) - */ -PNG_INTERNAL_FUNCTION(size_t,png_safecat,(png_charp buffer, size_t bufsize, - size_t pos, png_const_charp string),PNG_EMPTY); - -/* Various internal functions to handle formatted warning messages, currently - * only implemented for warnings. - */ -#if defined(PNG_WARNINGS_SUPPORTED) || defined(PNG_TIME_RFC1123_SUPPORTED) -/* Utility to dump an unsigned value into a buffer, given a start pointer and - * and end pointer (which should point just *beyond* the end of the buffer!) - * Returns the pointer to the start of the formatted string. This utility only - * does unsigned values. - */ -PNG_INTERNAL_FUNCTION(png_charp,png_format_number,(png_const_charp start, - png_charp end, int format, png_alloc_size_t number),PNG_EMPTY); - -/* Convenience macro that takes an array: */ -#define PNG_FORMAT_NUMBER(buffer,format,number) \ - png_format_number(buffer, buffer + (sizeof buffer), format, number) - -/* Suggested size for a number buffer (enough for 64 bits and a sign!) */ -#define PNG_NUMBER_BUFFER_SIZE 24 - -/* These are the integer formats currently supported, the name is formed from - * the standard printf(3) format string. - */ -#define PNG_NUMBER_FORMAT_u 1 /* chose unsigned API! */ -#define PNG_NUMBER_FORMAT_02u 2 -#define PNG_NUMBER_FORMAT_d 1 /* chose signed API! */ -#define PNG_NUMBER_FORMAT_02d 2 -#define PNG_NUMBER_FORMAT_x 3 -#define PNG_NUMBER_FORMAT_02x 4 -#define PNG_NUMBER_FORMAT_fixed 5 /* choose the signed API */ -#endif - -#ifdef PNG_WARNINGS_SUPPORTED -/* New defines and members adding in libpng-1.5.4 */ -# define PNG_WARNING_PARAMETER_SIZE 32 -# define PNG_WARNING_PARAMETER_COUNT 8 /* Maximum 9; see pngerror.c */ - -/* An l-value of this type has to be passed to the APIs below to cache the - * values of the parameters to a formatted warning message. - */ -typedef char png_warning_parameters[PNG_WARNING_PARAMETER_COUNT][ - PNG_WARNING_PARAMETER_SIZE]; - -PNG_INTERNAL_FUNCTION(void,png_warning_parameter,(png_warning_parameters p, - int number, png_const_charp string),PNG_EMPTY); - /* Parameters are limited in size to PNG_WARNING_PARAMETER_SIZE characters, - * including the trailing '\0'. - */ -PNG_INTERNAL_FUNCTION(void,png_warning_parameter_unsigned, - (png_warning_parameters p, int number, int format, png_alloc_size_t value), - PNG_EMPTY); - /* Use png_alloc_size_t because it is an unsigned type as big as any we - * need to output. Use the following for a signed value. - */ -PNG_INTERNAL_FUNCTION(void,png_warning_parameter_signed, - (png_warning_parameters p, int number, int format, png_int_32 value), - PNG_EMPTY); - -PNG_INTERNAL_FUNCTION(void,png_formatted_warning,(png_const_structrp png_ptr, - png_warning_parameters p, png_const_charp message),PNG_EMPTY); - /* 'message' follows the X/Open approach of using @1, @2 to insert - * parameters previously supplied using the above functions. Errors in - * specifying the parameters will simply result in garbage substitutions. - */ -#endif - -#ifdef PNG_BENIGN_ERRORS_SUPPORTED -/* Application errors (new in 1.6); use these functions (declared below) for - * errors in the parameters or order of API function calls on read. The - * 'warning' should be used for an error that can be handled completely; the - * 'error' for one which can be handled safely but which may lose application - * information or settings. - * - * By default these both result in a png_error call prior to release, while in a - * released version the 'warning' is just a warning. However if the application - * explicitly disables benign errors (explicitly permitting the code to lose - * information) they both turn into warnings. - * - * If benign errors aren't supported they end up as the corresponding base call - * (png_warning or png_error.) - */ -PNG_INTERNAL_FUNCTION(void,png_app_warning,(png_const_structrp png_ptr, - png_const_charp message),PNG_EMPTY); - /* The application provided invalid parameters to an API function or called - * an API function at the wrong time, libpng can completely recover. - */ - -PNG_INTERNAL_FUNCTION(void,png_app_error,(png_const_structrp png_ptr, - png_const_charp message),PNG_EMPTY); - /* As above but libpng will ignore the call, or attempt some other partial - * recovery from the error. - */ -#else -# define png_app_warning(pp,s) png_warning(pp,s) -# define png_app_error(pp,s) png_error(pp,s) -#endif - -PNG_INTERNAL_FUNCTION(void,png_chunk_report,(png_const_structrp png_ptr, - png_const_charp message, int error),PNG_EMPTY); - /* Report a recoverable issue in chunk data. On read this is used to report - * a problem found while reading a particular chunk and the - * png_chunk_benign_error or png_chunk_warning function is used as - * appropriate. On write this is used to report an error that comes from - * data set via an application call to a png_set_ API and png_app_error or - * png_app_warning is used as appropriate. - * - * The 'error' parameter must have one of the following values: - */ -#define PNG_CHUNK_WARNING 0 /* never an error */ -#define PNG_CHUNK_WRITE_ERROR 1 /* an error only on write */ -#define PNG_CHUNK_ERROR 2 /* always an error */ - -/* ASCII to FP interfaces, currently only implemented if sCAL - * support is required. - */ -#if defined(PNG_sCAL_SUPPORTED) -/* MAX_DIGITS is actually the maximum number of characters in an sCAL - * width or height, derived from the precision (number of significant - * digits - a build time settable option) and assumptions about the - * maximum ridiculous exponent. - */ -#define PNG_sCAL_MAX_DIGITS (PNG_sCAL_PRECISION+1/*.*/+1/*E*/+10/*exponent*/) - -#ifdef PNG_FLOATING_POINT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_ascii_from_fp,(png_const_structrp png_ptr, - png_charp ascii, png_size_t size, double fp, unsigned int precision), - PNG_EMPTY); -#endif /* FLOATING_POINT */ - -#ifdef PNG_FIXED_POINT_SUPPORTED -PNG_INTERNAL_FUNCTION(void,png_ascii_from_fixed,(png_const_structrp png_ptr, - png_charp ascii, png_size_t size, png_fixed_point fp),PNG_EMPTY); -#endif /* FIXED_POINT */ -#endif /* sCAL */ - -#if defined(PNG_sCAL_SUPPORTED) || defined(PNG_pCAL_SUPPORTED) -/* An internal API to validate the format of a floating point number. - * The result is the index of the next character. If the number is - * not valid it will be the index of a character in the supposed number. - * - * The format of a number is defined in the PNG extensions specification - * and this API is strictly conformant to that spec, not anyone elses! - * - * The format as a regular expression is: - * - * [+-]?[0-9]+.?([Ee][+-]?[0-9]+)? - * - * or: - * - * [+-]?.[0-9]+(.[0-9]+)?([Ee][+-]?[0-9]+)? - * - * The complexity is that either integer or fraction must be present and the - * fraction is permitted to have no digits only if the integer is present. - * - * NOTE: The dangling E problem. - * There is a PNG valid floating point number in the following: - * - * PNG floating point numbers are not greedy. - * - * Working this out requires *TWO* character lookahead (because of the - * sign), the parser does not do this - it will fail at the 'r' - this - * doesn't matter for PNG sCAL chunk values, but it requires more care - * if the value were ever to be embedded in something more complex. Use - * ANSI-C strtod if you need the lookahead. - */ -/* State table for the parser. */ -#define PNG_FP_INTEGER 0 /* before or in integer */ -#define PNG_FP_FRACTION 1 /* before or in fraction */ -#define PNG_FP_EXPONENT 2 /* before or in exponent */ -#define PNG_FP_STATE 3 /* mask for the above */ -#define PNG_FP_SAW_SIGN 4 /* Saw +/- in current state */ -#define PNG_FP_SAW_DIGIT 8 /* Saw a digit in current state */ -#define PNG_FP_SAW_DOT 16 /* Saw a dot in current state */ -#define PNG_FP_SAW_E 32 /* Saw an E (or e) in current state */ -#define PNG_FP_SAW_ANY 60 /* Saw any of the above 4 */ - -/* These three values don't affect the parser. They are set but not used. - */ -#define PNG_FP_WAS_VALID 64 /* Preceding substring is a valid fp number */ -#define PNG_FP_NEGATIVE 128 /* A negative number, including "-0" */ -#define PNG_FP_NONZERO 256 /* A non-zero value */ -#define PNG_FP_STICKY 448 /* The above three flags */ - -/* This is available for the caller to store in 'state' if required. Do not - * call the parser after setting it (the parser sometimes clears it.) - */ -#define PNG_FP_INVALID 512 /* Available for callers as a distinct value */ - -/* Result codes for the parser (boolean - true meants ok, false means - * not ok yet.) - */ -#define PNG_FP_MAYBE 0 /* The number may be valid in the future */ -#define PNG_FP_OK 1 /* The number is valid */ - -/* Tests on the sticky non-zero and negative flags. To pass these checks - * the state must also indicate that the whole number is valid - this is - * achieved by testing PNG_FP_SAW_DIGIT (see the implementation for why this - * is equivalent to PNG_FP_OK above.) - */ -#define PNG_FP_NZ_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NEGATIVE | PNG_FP_NONZERO) - /* NZ_MASK: the string is valid and a non-zero negative value */ -#define PNG_FP_Z_MASK (PNG_FP_SAW_DIGIT | PNG_FP_NONZERO) - /* Z MASK: the string is valid and a non-zero value. */ - /* PNG_FP_SAW_DIGIT: the string is valid. */ -#define PNG_FP_IS_ZERO(state) (((state) & PNG_FP_Z_MASK) == PNG_FP_SAW_DIGIT) -#define PNG_FP_IS_POSITIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_Z_MASK) -#define PNG_FP_IS_NEGATIVE(state) (((state) & PNG_FP_NZ_MASK) == PNG_FP_NZ_MASK) - -/* The actual parser. This can be called repeatedly. It updates - * the index into the string and the state variable (which must - * be initialized to 0). It returns a result code, as above. There - * is no point calling the parser any more if it fails to advance to - * the end of the string - it is stuck on an invalid character (or - * terminated by '\0'). - * - * Note that the pointer will consume an E or even an E+ and then leave - * a 'maybe' state even though a preceding integer.fraction is valid. - * The PNG_FP_WAS_VALID flag indicates that a preceding substring was - * a valid number. It's possible to recover from this by calling - * the parser again (from the start, with state 0) but with a string - * that omits the last character (i.e. set the size to the index of - * the problem character.) This has not been tested within libpng. - */ -PNG_INTERNAL_FUNCTION(int,png_check_fp_number,(png_const_charp string, - png_size_t size, int *statep, png_size_tp whereami),PNG_EMPTY); - -/* This is the same but it checks a complete string and returns true - * only if it just contains a floating point number. As of 1.5.4 this - * function also returns the state at the end of parsing the number if - * it was valid (otherwise it returns 0.) This can be used for testing - * for negative or zero values using the sticky flag. - */ -PNG_INTERNAL_FUNCTION(int,png_check_fp_string,(png_const_charp string, - png_size_t size),PNG_EMPTY); -#endif /* pCAL || sCAL */ - -#if defined(PNG_GAMMA_SUPPORTED) ||\ - defined(PNG_INCH_CONVERSIONS_SUPPORTED) || defined(PNG_READ_pHYs_SUPPORTED) -/* Added at libpng version 1.5.0 */ -/* This is a utility to provide a*times/div (rounded) and indicate - * if there is an overflow. The result is a boolean - false (0) - * for overflow, true (1) if no overflow, in which case *res - * holds the result. - */ -PNG_INTERNAL_FUNCTION(int,png_muldiv,(png_fixed_point_p res, png_fixed_point a, - png_int_32 multiplied_by, png_int_32 divided_by),PNG_EMPTY); -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_INCH_CONVERSIONS_SUPPORTED) -/* Same deal, but issue a warning on overflow and return 0. */ -PNG_INTERNAL_FUNCTION(png_fixed_point,png_muldiv_warn, - (png_const_structrp png_ptr, png_fixed_point a, png_int_32 multiplied_by, - png_int_32 divided_by),PNG_EMPTY); -#endif - -#ifdef PNG_GAMMA_SUPPORTED -/* Calculate a reciprocal - used for gamma values. This returns - * 0 if the argument is 0 in order to maintain an undefined value; - * there are no warnings. - */ -PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal,(png_fixed_point a), - PNG_EMPTY); - -#ifdef PNG_READ_GAMMA_SUPPORTED -/* The same but gives a reciprocal of the product of two fixed point - * values. Accuracy is suitable for gamma calculations but this is - * not exact - use png_muldiv for that. Only required at present on read. - */ -PNG_INTERNAL_FUNCTION(png_fixed_point,png_reciprocal2,(png_fixed_point a, - png_fixed_point b),PNG_EMPTY); -#endif - -/* Return true if the gamma value is significantly different from 1.0 */ -PNG_INTERNAL_FUNCTION(int,png_gamma_significant,(png_fixed_point gamma_value), - PNG_EMPTY); -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED -/* Internal fixed point gamma correction. These APIs are called as - * required to convert single values - they don't need to be fast, - * they are not used when processing image pixel values. - * - * While the input is an 'unsigned' value it must actually be the - * correct bit value - 0..255 or 0..65535 as required. - */ -PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_correct,(png_structrp png_ptr, - unsigned int value, png_fixed_point gamma_value),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(png_uint_16,png_gamma_16bit_correct,(unsigned int value, - png_fixed_point gamma_value),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(png_byte,png_gamma_8bit_correct,(unsigned int value, - png_fixed_point gamma_value),PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_destroy_gamma_table,(png_structrp png_ptr), - PNG_EMPTY); -PNG_INTERNAL_FUNCTION(void,png_build_gamma_table,(png_structrp png_ptr, - int bit_depth),PNG_EMPTY); -#endif - -/* SIMPLIFIED READ/WRITE SUPPORT */ -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) ||\ - defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) -/* The internal structure that png_image::opaque points to. */ -typedef struct png_control -{ - png_structp png_ptr; - png_infop info_ptr; - png_voidp error_buf; /* Always a jmp_buf at present. */ - - png_const_bytep memory; /* Memory buffer. */ - png_size_t size; /* Size of the memory buffer. */ - - unsigned int for_write :1; /* Otherwise it is a read structure */ - unsigned int owned_file :1; /* We own the file in io_ptr */ -} png_control; - -/* Return the pointer to the jmp_buf from a png_control: necessary because C - * does not reveal the type of the elements of jmp_buf. - */ -#ifdef __cplusplus -# define png_control_jmp_buf(pc) (((jmp_buf*)((pc)->error_buf))[0]) -#else -# define png_control_jmp_buf(pc) ((pc)->error_buf) -#endif - -/* Utility to safely execute a piece of libpng code catching and logging any - * errors that might occur. Returns true on success, false on failure (either - * of the function or as a result of a png_error.) - */ -PNG_INTERNAL_CALLBACK(void,png_safe_error,(png_structp png_ptr, - png_const_charp error_message),PNG_NORETURN); - -#ifdef PNG_WARNINGS_SUPPORTED -PNG_INTERNAL_CALLBACK(void,png_safe_warning,(png_structp png_ptr, - png_const_charp warning_message),PNG_EMPTY); -#else -# define png_safe_warning 0/*dummy argument*/ -#endif - -PNG_INTERNAL_FUNCTION(int,png_safe_execute,(png_imagep image, - int (*function)(png_voidp), png_voidp arg),PNG_EMPTY); - -/* Utility to log an error; this also cleans up the png_image; the function - * always returns 0 (false). - */ -PNG_INTERNAL_FUNCTION(int,png_image_error,(png_imagep image, - png_const_charp error_message),PNG_EMPTY); - -#ifndef PNG_SIMPLIFIED_READ_SUPPORTED -/* png_image_free is used by the write code but not exported */ -PNG_INTERNAL_FUNCTION(void, png_image_free, (png_imagep image), PNG_EMPTY); -#endif /* !SIMPLIFIED_READ */ - -#endif /* SIMPLIFIED READ/WRITE */ - -/* These are initialization functions for hardware specific PNG filter - * optimizations; list these here then select the appropriate one at compile - * time using the macro PNG_FILTER_OPTIMIZATIONS. If the macro is not defined - * the generic code is used. - */ -#ifdef PNG_FILTER_OPTIMIZATIONS -PNG_INTERNAL_FUNCTION(void, PNG_FILTER_OPTIMIZATIONS, (png_structp png_ptr, - unsigned int bpp), PNG_EMPTY); - /* Just declare the optimization that will be used */ -#else - /* List *all* the possible optimizations here - this branch is required if - * the builder of libpng passes the definition of PNG_FILTER_OPTIMIZATIONS in - * CFLAGS in place of CPPFLAGS *and* uses symbol prefixing. - */ -PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_neon, - (png_structp png_ptr, unsigned int bpp), PNG_EMPTY); -#endif - -/* Maintainer: Put new private prototypes here ^ */ - -#include "pngdebug.h" - -#ifdef __cplusplus -} -#endif - -#endif /* PNG_VERSION_INFO_ONLY */ -#endif /* PNGPRIV_H */ diff --git a/png/pngread.c b/png/pngread.c deleted file mode 100755 index 4bf2021..0000000 --- a/png/pngread.c +++ /dev/null @@ -1,4098 +0,0 @@ - -/* pngread.c - read a PNG file - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file contains routines that an application calls directly to - * read a PNG file or stream. - */ - -#include "pngpriv.h" -#if defined(PNG_SIMPLIFIED_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) -# include -#endif - -#ifdef PNG_READ_SUPPORTED - -/* Create a PNG structure for reading, and allocate any memory needed. */ -PNG_FUNCTION(png_structp,PNGAPI -png_create_read_struct,(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED) -{ -#ifndef PNG_USER_MEM_SUPPORTED - png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr, - error_fn, warn_fn, NULL, NULL, NULL); -#else - return png_create_read_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, NULL, NULL, NULL); -} - -/* Alternate create PNG structure for reading, and allocate any memory - * needed. - */ -PNG_FUNCTION(png_structp,PNGAPI -png_create_read_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) -{ - png_structp png_ptr = png_create_png_struct(user_png_ver, error_ptr, - error_fn, warn_fn, mem_ptr, malloc_fn, free_fn); -#endif /* PNG_USER_MEM_SUPPORTED */ - - if (png_ptr != NULL) - { - png_ptr->mode = PNG_IS_READ_STRUCT; - - /* Added in libpng-1.6.0; this can be used to detect a read structure if - * required (it will be zero in a write structure.) - */ -# ifdef PNG_SEQUENTIAL_READ_SUPPORTED - png_ptr->IDAT_read_size = PNG_IDAT_READ_SIZE; -# endif - -# ifdef PNG_BENIGN_READ_ERRORS_SUPPORTED - png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; - - /* In stable builds only warn if an application error can be completely - * handled. - */ -# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC - png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN; -# endif -# endif - - /* TODO: delay this, it can be done in png_init_io (if the app doesn't - * do it itself) avoiding setting the default function if it is not - * required. - */ - png_set_read_fn(png_ptr, NULL, NULL); - } - - return png_ptr; -} - - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the information before the actual image data. This has been - * changed in v0.90 to allow reading a file that already has the magic - * bytes read from the stream. You can tell libpng how many bytes have - * been read from the beginning of the stream (up to the maximum of 8) - * via png_set_sig_bytes(), and we will only check the remaining bytes - * here. The application can then have access to the signature bytes we - * read if it is determined that this isn't a valid PNG file. - */ -void PNGAPI -png_read_info(png_structrp png_ptr, png_inforp info_ptr) -{ -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - int keep; -#endif - - png_debug(1, "in png_read_info"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* Read and check the PNG file signature. */ - png_read_sig(png_ptr, info_ptr); - - for (;;) - { - png_uint_32 length = png_read_chunk_header(png_ptr); - png_uint_32 chunk_name = png_ptr->chunk_name; - - /* IDAT logic needs to happen here to simplify getting the two flags - * right. - */ - if (chunk_name == png_IDAT) - { - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "Missing IHDR before IDAT"); - - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE)) - png_chunk_error(png_ptr, "Missing PLTE before IDAT"); - - else if (png_ptr->mode & PNG_AFTER_IDAT) - png_chunk_benign_error(png_ptr, "Too many IDATs found"); - - png_ptr->mode |= PNG_HAVE_IDAT; - } - - else if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - /* This should be a binary subdivision search or a hash for - * matching the chunk name rather than a linear search. - */ - if (chunk_name == png_IHDR) - png_handle_IHDR(png_ptr, info_ptr, length); - - else if (chunk_name == png_IEND) - png_handle_IEND(png_ptr, info_ptr, length); - -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) - { - png_handle_unknown(png_ptr, info_ptr, length, keep); - - if (chunk_name == png_PLTE) - png_ptr->mode |= PNG_HAVE_PLTE; - - else if (chunk_name == png_IDAT) - { - png_ptr->idat_size = 0; /* It has been consumed */ - break; - } - } -#endif - else if (chunk_name == png_PLTE) - png_handle_PLTE(png_ptr, info_ptr, length); - - else if (chunk_name == png_IDAT) - { - png_ptr->idat_size = length; - break; - } - -#ifdef PNG_READ_bKGD_SUPPORTED - else if (chunk_name == png_bKGD) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_cHRM_SUPPORTED - else if (chunk_name == png_cHRM) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_gAMA_SUPPORTED - else if (chunk_name == png_gAMA) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_hIST_SUPPORTED - else if (chunk_name == png_hIST) - png_handle_hIST(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_oFFs_SUPPORTED - else if (chunk_name == png_oFFs) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_pCAL_SUPPORTED - else if (chunk_name == png_pCAL) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sCAL_SUPPORTED - else if (chunk_name == png_sCAL) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_pHYs_SUPPORTED - else if (chunk_name == png_pHYs) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sBIT_SUPPORTED - else if (chunk_name == png_sBIT) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sRGB_SUPPORTED - else if (chunk_name == png_sRGB) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_iCCP_SUPPORTED - else if (chunk_name == png_iCCP) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sPLT_SUPPORTED - else if (chunk_name == png_sPLT) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tEXt_SUPPORTED - else if (chunk_name == png_tEXt) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tIME_SUPPORTED - else if (chunk_name == png_tIME) - png_handle_tIME(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tRNS_SUPPORTED - else if (chunk_name == png_tRNS) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_zTXt_SUPPORTED - else if (chunk_name == png_zTXt) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_iTXt_SUPPORTED - else if (chunk_name == png_iTXt) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - - else - png_handle_unknown(png_ptr, info_ptr, length, - PNG_HANDLE_CHUNK_AS_DEFAULT); - } -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -/* Optional call to update the users info_ptr structure */ -void PNGAPI -png_read_update_info(png_structrp png_ptr, png_inforp info_ptr) -{ - png_debug(1, "in png_read_update_info"); - - if (png_ptr != NULL) - { - if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0) - { - png_read_start_row(png_ptr); - -# ifdef PNG_READ_TRANSFORMS_SUPPORTED - png_read_transform_info(png_ptr, info_ptr); -# else - PNG_UNUSED(info_ptr) -# endif - } - - /* New in 1.6.0 this avoids the bug of doing the initializations twice */ - else - png_app_error(png_ptr, - "png_read_update_info/png_start_read_image: duplicate call"); - } -} - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Initialize palette, background, etc, after transformations - * are set, but before any reading takes place. This allows - * the user to obtain a gamma-corrected palette, for example. - * If the user doesn't call this, we will do it ourselves. - */ -void PNGAPI -png_start_read_image(png_structrp png_ptr) -{ - png_debug(1, "in png_start_read_image"); - - if (png_ptr != NULL) - { - if ((png_ptr->flags & PNG_FLAG_ROW_INIT) == 0) - png_read_start_row(png_ptr); - - /* New in 1.6.0 this avoids the bug of doing the initializations twice */ - else - png_app_error(png_ptr, - "png_start_read_image/png_read_update_info: duplicate call"); - } -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -#ifdef PNG_MNG_FEATURES_SUPPORTED -/* Undoes intrapixel differencing, - * NOTE: this is apparently only supported in the 'sequential' reader. - */ -static void -png_do_read_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_intrapixel"); - - if ( - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((256 + *rp + *(rp + 1)) & 0xff); - *(rp+2) = (png_byte)((256 + *(rp + 2) + *(rp + 1)) & 0xff); - } - } - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1); - png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3); - png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5); - png_uint_32 red = (s0 + s1 + 65536) & 0xffff; - png_uint_32 blue = (s2 + s1 + 65536) & 0xffff; - *(rp ) = (png_byte)((red >> 8) & 0xff); - *(rp + 1) = (png_byte)(red & 0xff); - *(rp + 4) = (png_byte)((blue >> 8) & 0xff); - *(rp + 5) = (png_byte)(blue & 0xff); - } - } - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ - -void PNGAPI -png_read_row(png_structrp png_ptr, png_bytep row, png_bytep dsp_row) -{ - png_row_info row_info; - - if (png_ptr == NULL) - return; - - png_debug2(1, "in png_read_row (row %lu, pass %d)", - (unsigned long)png_ptr->row_number, png_ptr->pass); - - /* png_read_start_row sets the information (in particular iwidth) for this - * interlace pass. - */ - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - png_read_start_row(png_ptr); - - /* 1.5.6: row_info moved out of png_struct to a local here. */ - row_info.width = png_ptr->iwidth; /* NOTE: width of current interlaced row */ - row_info.color_type = png_ptr->color_type; - row_info.bit_depth = png_ptr->bit_depth; - row_info.channels = png_ptr->channels; - row_info.pixel_depth = png_ptr->pixel_depth; - row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); - - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* Check for transforms that have been set but were defined out */ -#if defined(PNG_WRITE_INVERT_SUPPORTED) && !defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_READ_INVERT_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_FILLER_SUPPORTED) && !defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_READ_FILLER_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \ - !defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, "PNG_READ_PACKSWAP_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_PACK_SUPPORTED) && !defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_READ_PACK_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_SHIFT_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_READ_SHIFT_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_BGR_SUPPORTED) && !defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_READ_BGR_SUPPORTED is not defined"); -#endif - -#if defined(PNG_WRITE_SWAP_SUPPORTED) && !defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_READ_SWAP_SUPPORTED is not defined"); -#endif - } - -#ifdef PNG_READ_INTERLACING_SUPPORTED - /* If interlaced and we do not need a new row, combine row and return. - * Notice that the pixels we have from previous rows have been transformed - * already; we can only combine like with like (transformed or - * untransformed) and, because of the libpng API for interlaced images, this - * means we must transform before de-interlacing. - */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - png_read_finish_row(png_ptr); - return; - } - break; - - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - png_read_finish_row(png_ptr); - return; - } - break; - - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - if (dsp_row != NULL && (png_ptr->row_number & 4)) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - png_read_finish_row(png_ptr); - return; - } - break; - - case 3: - if ((png_ptr->row_number & 3) || png_ptr->width < 3) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - png_read_finish_row(png_ptr); - return; - } - break; - - case 4: - if ((png_ptr->row_number & 3) != 2) - { - if (dsp_row != NULL && (png_ptr->row_number & 2)) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - png_read_finish_row(png_ptr); - return; - } - break; - - case 5: - if ((png_ptr->row_number & 1) || png_ptr->width < 2) - { - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - png_read_finish_row(png_ptr); - return; - } - break; - - default: - case 6: - if (!(png_ptr->row_number & 1)) - { - png_read_finish_row(png_ptr); - return; - } - break; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "Invalid attempt to read row data"); - - /* Fill the row with IDAT data: */ - png_read_IDAT_data(png_ptr, png_ptr->row_buf, row_info.rowbytes + 1); - - if (png_ptr->row_buf[0] > PNG_FILTER_VALUE_NONE) - { - if (png_ptr->row_buf[0] < PNG_FILTER_VALUE_LAST) - png_read_filter_row(png_ptr, &row_info, png_ptr->row_buf + 1, - png_ptr->prev_row + 1, png_ptr->row_buf[0]); - else - png_error(png_ptr, "bad adaptive filter value"); - } - - /* libpng 1.5.6: the following line was copying png_ptr->rowbytes before - * 1.5.6, while the buffer really is this big in current versions of libpng - * it may not be in the future, so this was changed just to copy the - * interlaced count: - */ - memcpy(png_ptr->prev_row, png_ptr->row_buf, row_info.rowbytes + 1); - -#ifdef PNG_MNG_FEATURES_SUPPORTED - if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_read_intrapixel(&row_info, png_ptr->row_buf + 1); - } -#endif - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED - if (png_ptr->transformations) - png_do_read_transformations(png_ptr, &row_info); -#endif - - /* The transformed pixel depth should match the depth now in row_info. */ - if (png_ptr->transformed_pixel_depth == 0) - { - png_ptr->transformed_pixel_depth = row_info.pixel_depth; - if (row_info.pixel_depth > png_ptr->maximum_pixel_depth) - png_error(png_ptr, "sequential row overflow"); - } - - else if (png_ptr->transformed_pixel_depth != row_info.pixel_depth) - png_error(png_ptr, "internal sequential row size calculation error"); - -#ifdef PNG_READ_INTERLACING_SUPPORTED - /* Expand interlaced rows to full size */ - if (png_ptr->interlaced && - (png_ptr->transformations & PNG_INTERLACE)) - { - if (png_ptr->pass < 6) - png_do_read_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass, - png_ptr->transformations); - - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, 1/*display*/); - - if (row != NULL) - png_combine_row(png_ptr, row, 0/*row*/); - } - - else -#endif - { - if (row != NULL) - png_combine_row(png_ptr, row, -1/*ignored*/); - - if (dsp_row != NULL) - png_combine_row(png_ptr, dsp_row, -1/*ignored*/); - } - png_read_finish_row(png_ptr); - - if (png_ptr->read_row_fn != NULL) - (*(png_ptr->read_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); - -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read one or more rows of image data. If the image is interlaced, - * and png_set_interlace_handling() has been called, the rows need to - * contain the contents of the rows from the previous pass. If the - * image has alpha or transparency, and png_handle_alpha()[*] has been - * called, the rows contents must be initialized to the contents of the - * screen. - * - * "row" holds the actual image, and pixels are placed in it - * as they arrive. If the image is displayed after each pass, it will - * appear to "sparkle" in. "display_row" can be used to display a - * "chunky" progressive image, with finer detail added as it becomes - * available. If you do not want this "chunky" display, you may pass - * NULL for display_row. If you do not want the sparkle display, and - * you have not called png_handle_alpha(), you may pass NULL for rows. - * If you have called png_handle_alpha(), and the image has either an - * alpha channel or a transparency chunk, you must provide a buffer for - * rows. In this case, you do not have to provide a display_row buffer - * also, but you may. If the image is not interlaced, or if you have - * not called png_set_interlace_handling(), the display_row buffer will - * be ignored, so pass NULL to it. - * - * [*] png_handle_alpha() does not exist yet, as of this version of libpng - */ - -void PNGAPI -png_read_rows(png_structrp png_ptr, png_bytepp row, - png_bytepp display_row, png_uint_32 num_rows) -{ - png_uint_32 i; - png_bytepp rp; - png_bytepp dp; - - png_debug(1, "in png_read_rows"); - - if (png_ptr == NULL) - return; - - rp = row; - dp = display_row; - if (rp != NULL && dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp++; - png_bytep dptr = *dp++; - - png_read_row(png_ptr, rptr, dptr); - } - - else if (rp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep rptr = *rp; - png_read_row(png_ptr, rptr, NULL); - rp++; - } - - else if (dp != NULL) - for (i = 0; i < num_rows; i++) - { - png_bytep dptr = *dp; - png_read_row(png_ptr, NULL, dptr); - dp++; - } -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the entire image. If the image has an alpha channel or a tRNS - * chunk, and you have called png_handle_alpha()[*], you will need to - * initialize the image to the current image that PNG will be overlaying. - * We set the num_rows again here, in case it was incorrectly set in - * png_read_start_row() by a call to png_read_update_info() or - * png_start_read_image() if png_set_interlace_handling() wasn't called - * prior to either of these functions like it should have been. You can - * only call this function once. If you desire to have an image for - * each pass of a interlaced image, use png_read_rows() instead. - * - * [*] png_handle_alpha() does not exist yet, as of this version of libpng - */ -void PNGAPI -png_read_image(png_structrp png_ptr, png_bytepp image) -{ - png_uint_32 i, image_height; - int pass, j; - png_bytepp rp; - - png_debug(1, "in png_read_image"); - - if (png_ptr == NULL) - return; - -#ifdef PNG_READ_INTERLACING_SUPPORTED - if (!(png_ptr->flags & PNG_FLAG_ROW_INIT)) - { - pass = png_set_interlace_handling(png_ptr); - /* And make sure transforms are initialized. */ - png_start_read_image(png_ptr); - } - else - { - if (png_ptr->interlaced && !(png_ptr->transformations & PNG_INTERLACE)) - { - /* Caller called png_start_read_image or png_read_update_info without - * first turning on the PNG_INTERLACE transform. We can fix this here, - * but the caller should do it! - */ - png_warning(png_ptr, "Interlace handling should be turned on when " - "using png_read_image"); - /* Make sure this is set correctly */ - png_ptr->num_rows = png_ptr->height; - } - - /* Obtain the pass number, which also turns on the PNG_INTERLACE flag in - * the above error case. - */ - pass = png_set_interlace_handling(png_ptr); - } -#else - if (png_ptr->interlaced) - png_error(png_ptr, - "Cannot read interlaced image -- interlace handler disabled"); - - pass = 1; -#endif - - image_height=png_ptr->height; - - for (j = 0; j < pass; j++) - { - rp = image; - for (i = 0; i < image_height; i++) - { - png_read_row(png_ptr, *rp, NULL); - rp++; - } - } -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -/* Read the end of the PNG file. Will not read past the end of the - * file, will verify the end is accurate, and will read any comments - * or time information at the end of the file, if info is not NULL. - */ -void PNGAPI -png_read_end(png_structrp png_ptr, png_inforp info_ptr) -{ -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - int keep; -#endif - - png_debug(1, "in png_read_end"); - - if (png_ptr == NULL) - return; - - /* If png_read_end is called in the middle of reading the rows there may - * still be pending IDAT data and an owned zstream. Deal with this here. - */ -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - if (!png_chunk_unknown_handling(png_ptr, png_IDAT)) -#endif - png_read_finish_IDAT(png_ptr); - -#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED - /* Report invalid palette index; added at libng-1.5.10 */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - png_ptr->num_palette_max > png_ptr->num_palette) - png_benign_error(png_ptr, "Read palette index exceeding num_palette"); -#endif - - do - { - png_uint_32 length = png_read_chunk_header(png_ptr); - png_uint_32 chunk_name = png_ptr->chunk_name; - - if (chunk_name == png_IEND) - png_handle_IEND(png_ptr, info_ptr, length); - - else if (chunk_name == png_IHDR) - png_handle_IHDR(png_ptr, info_ptr, length); - - else if (info_ptr == NULL) - png_crc_finish(png_ptr, length); - -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED - else if ((keep = png_chunk_unknown_handling(png_ptr, chunk_name)) != 0) - { - if (chunk_name == png_IDAT) - { - if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - png_benign_error(png_ptr, "Too many IDATs found"); - } - png_handle_unknown(png_ptr, info_ptr, length, keep); - if (chunk_name == png_PLTE) - png_ptr->mode |= PNG_HAVE_PLTE; - } -#endif - - else if (chunk_name == png_IDAT) - { - /* Zero length IDATs are legal after the last IDAT has been - * read, but not after other chunks have been read. - */ - if ((length > 0) || (png_ptr->mode & PNG_HAVE_CHUNK_AFTER_IDAT)) - png_benign_error(png_ptr, "Too many IDATs found"); - - png_crc_finish(png_ptr, length); - } - else if (chunk_name == png_PLTE) - png_handle_PLTE(png_ptr, info_ptr, length); - -#ifdef PNG_READ_bKGD_SUPPORTED - else if (chunk_name == png_bKGD) - png_handle_bKGD(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_cHRM_SUPPORTED - else if (chunk_name == png_cHRM) - png_handle_cHRM(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_gAMA_SUPPORTED - else if (chunk_name == png_gAMA) - png_handle_gAMA(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_hIST_SUPPORTED - else if (chunk_name == png_hIST) - png_handle_hIST(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_oFFs_SUPPORTED - else if (chunk_name == png_oFFs) - png_handle_oFFs(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_pCAL_SUPPORTED - else if (chunk_name == png_pCAL) - png_handle_pCAL(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sCAL_SUPPORTED - else if (chunk_name == png_sCAL) - png_handle_sCAL(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_pHYs_SUPPORTED - else if (chunk_name == png_pHYs) - png_handle_pHYs(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sBIT_SUPPORTED - else if (chunk_name == png_sBIT) - png_handle_sBIT(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sRGB_SUPPORTED - else if (chunk_name == png_sRGB) - png_handle_sRGB(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_iCCP_SUPPORTED - else if (chunk_name == png_iCCP) - png_handle_iCCP(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_sPLT_SUPPORTED - else if (chunk_name == png_sPLT) - png_handle_sPLT(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tEXt_SUPPORTED - else if (chunk_name == png_tEXt) - png_handle_tEXt(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tIME_SUPPORTED - else if (chunk_name == png_tIME) - png_handle_tIME(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_tRNS_SUPPORTED - else if (chunk_name == png_tRNS) - png_handle_tRNS(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_zTXt_SUPPORTED - else if (chunk_name == png_zTXt) - png_handle_zTXt(png_ptr, info_ptr, length); -#endif - -#ifdef PNG_READ_iTXt_SUPPORTED - else if (chunk_name == png_iTXt) - png_handle_iTXt(png_ptr, info_ptr, length); -#endif - - else - png_handle_unknown(png_ptr, info_ptr, length, - PNG_HANDLE_CHUNK_AS_DEFAULT); - } while (!(png_ptr->mode & PNG_HAVE_IEND)); -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -/* Free all memory used in the read struct */ -static void -png_read_destroy(png_structrp png_ptr) -{ - png_debug(1, "in png_read_destroy"); - -#ifdef PNG_READ_GAMMA_SUPPORTED - png_destroy_gamma_table(png_ptr); -#endif - - png_free(png_ptr, png_ptr->big_row_buf); - png_free(png_ptr, png_ptr->big_prev_row); - png_free(png_ptr, png_ptr->read_buffer); - -#ifdef PNG_READ_QUANTIZE_SUPPORTED - png_free(png_ptr, png_ptr->palette_lookup); - png_free(png_ptr, png_ptr->quantize_index); -#endif - - if (png_ptr->free_me & PNG_FREE_PLTE) - png_zfree(png_ptr, png_ptr->palette); - png_ptr->free_me &= ~PNG_FREE_PLTE; - -#if defined(PNG_tRNS_SUPPORTED) || \ - defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - if (png_ptr->free_me & PNG_FREE_TRNS) - png_free(png_ptr, png_ptr->trans_alpha); - png_ptr->free_me &= ~PNG_FREE_TRNS; -#endif - - inflateEnd(&png_ptr->zstream); - -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_free(png_ptr, png_ptr->save_buffer); -#endif - -#if defined(PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED) &&\ - defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - png_free(png_ptr, png_ptr->unknown_chunk.data); -#endif - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - png_free(png_ptr, png_ptr->chunk_list); -#endif - - /* NOTE: the 'setjmp' buffer may still be allocated and the memory and error - * callbacks are still set at this point. They are required to complete the - * destruction of the png_struct itself. - */ -} - -/* Free all memory used by the read */ -void PNGAPI -png_destroy_read_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr, - png_infopp end_info_ptr_ptr) -{ - png_structrp png_ptr = NULL; - - png_debug(1, "in png_destroy_read_struct"); - - if (png_ptr_ptr != NULL) - png_ptr = *png_ptr_ptr; - - if (png_ptr == NULL) - return; - - /* libpng 1.6.0: use the API to destroy info structs to ensure consistent - * behavior. Prior to 1.6.0 libpng did extra 'info' destruction in this API. - * The extra was, apparently, unnecessary yet this hides memory leak bugs. - */ - png_destroy_info_struct(png_ptr, end_info_ptr_ptr); - png_destroy_info_struct(png_ptr, info_ptr_ptr); - - *png_ptr_ptr = NULL; - png_read_destroy(png_ptr); - png_destroy_png_struct(png_ptr); -} - -void PNGAPI -png_set_read_status_fn(png_structrp png_ptr, png_read_status_ptr read_row_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->read_row_fn = read_row_fn; -} - - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -#ifdef PNG_INFO_IMAGE_SUPPORTED -void PNGAPI -png_read_png(png_structrp png_ptr, png_inforp info_ptr, - int transforms, - voidp params) -{ - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* png_read_info() gives us all of the information from the - * PNG file before the first IDAT (image data chunk). - */ - png_read_info(png_ptr, info_ptr); - if (info_ptr->height > PNG_UINT_32_MAX/(sizeof (png_bytep))) - png_error(png_ptr, "Image is too high to process with png_read_png()"); - - /* -------------- image transformations start here ------------------- */ - /* libpng 1.6.10: add code to cause a png_app_error if a selected TRANSFORM - * is not implemented. This will only happen in de-configured (non-default) - * libpng builds. The results can be unexpected - png_read_png may return - * short or mal-formed rows because the transform is skipped. - */ - - /* Tell libpng to strip 16-bit/color files down to 8 bits per color. - */ - if (transforms & PNG_TRANSFORM_SCALE_16) - /* Added at libpng-1.5.4. "strip_16" produces the same result that it - * did in earlier versions, while "scale_16" is now more accurate. - */ -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED - png_set_scale_16(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SCALE_16 not supported"); -#endif - - /* If both SCALE and STRIP are required pngrtran will effectively cancel the - * latter by doing SCALE first. This is ok and allows apps not to check for - * which is supported to get the right answer. - */ - if (transforms & PNG_TRANSFORM_STRIP_16) -#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED - png_set_strip_16(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_16 not supported"); -#endif - - /* Strip alpha bytes from the input data without combining with - * the background (not recommended). - */ - if (transforms & PNG_TRANSFORM_STRIP_ALPHA) -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED - png_set_strip_alpha(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_ALPHA not supported"); -#endif - - /* Extract multiple pixels with bit depths of 1, 2, or 4 from a single - * byte into separate bytes (useful for paletted and grayscale images). - */ - if (transforms & PNG_TRANSFORM_PACKING) -#ifdef PNG_READ_PACK_SUPPORTED - png_set_packing(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported"); -#endif - - /* Change the order of packed pixels to least significant bit first - * (not useful if you are using png_set_packing). - */ - if (transforms & PNG_TRANSFORM_PACKSWAP) -#ifdef PNG_READ_PACKSWAP_SUPPORTED - png_set_packswap(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported"); -#endif - - /* Expand paletted colors into true RGB triplets - * Expand grayscale images to full 8 bits from 1, 2, or 4 bits/pixel - * Expand paletted or RGB images with transparency to full alpha - * channels so the data will be available as RGBA quartets. - */ - if (transforms & PNG_TRANSFORM_EXPAND) -#ifdef PNG_READ_EXPAND_SUPPORTED - png_set_expand(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND not supported"); -#endif - - /* We don't handle background color or gamma transformation or quantizing. - */ - - /* Invert monochrome files to have 0 as white and 1 as black - */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) -#ifdef PNG_READ_INVERT_SUPPORTED - png_set_invert_mono(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported"); -#endif - - /* If you want to shift the pixel values from the range [0,255] or - * [0,65535] to the original [0,7] or [0,31], or whatever range the - * colors were originally in: - */ - if (transforms & PNG_TRANSFORM_SHIFT) -#ifdef PNG_READ_SHIFT_SUPPORTED - if (info_ptr->valid & PNG_INFO_sBIT) - png_set_shift(png_ptr, &info_ptr->sig_bit); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported"); -#endif - - /* Flip the RGB pixels to BGR (or RGBA to BGRA) */ - if (transforms & PNG_TRANSFORM_BGR) -#ifdef PNG_READ_BGR_SUPPORTED - png_set_bgr(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported"); -#endif - - /* Swap the RGBA or GA data to ARGB or AG (or BGRA to ABGR) */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) -#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED - png_set_swap_alpha(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported"); -#endif - - /* Swap bytes of 16-bit files to least significant byte first */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) -#ifdef PNG_READ_SWAP_SUPPORTED - png_set_swap(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported"); -#endif - -/* Added at libpng-1.2.41 */ - /* Invert the alpha channel from opacity to transparency */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) -#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED - png_set_invert_alpha(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported"); -#endif - -/* Added at libpng-1.2.41 */ - /* Expand grayscale image to RGB */ - if (transforms & PNG_TRANSFORM_GRAY_TO_RGB) -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED - png_set_gray_to_rgb(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_GRAY_TO_RGB not supported"); -#endif - -/* Added at libpng-1.5.4 */ - if (transforms & PNG_TRANSFORM_EXPAND_16) -#ifdef PNG_READ_EXPAND_16_SUPPORTED - png_set_expand_16(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_EXPAND_16 not supported"); -#endif - - /* We don't handle adding filler bytes */ - - /* We use png_read_image and rely on that for interlace handling, but we also - * call png_read_update_info therefore must turn on interlace handling now: - */ - (void)png_set_interlace_handling(png_ptr); - - /* Optional call to gamma correct and add the background to the palette - * and update info structure. REQUIRED if you are expecting libpng to - * update the palette for you (i.e., you selected such a transform above). - */ - png_read_update_info(png_ptr, info_ptr); - - /* -------------- image transformations end here ------------------- */ - - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); - if (info_ptr->row_pointers == NULL) - { - png_uint_32 iptr; - - info_ptr->row_pointers = png_voidcast(png_bytepp, png_malloc(png_ptr, - info_ptr->height * (sizeof (png_bytep)))); - - for (iptr=0; iptrheight; iptr++) - info_ptr->row_pointers[iptr] = NULL; - - info_ptr->free_me |= PNG_FREE_ROWS; - - for (iptr = 0; iptr < info_ptr->height; iptr++) - info_ptr->row_pointers[iptr] = png_voidcast(png_bytep, - png_malloc(png_ptr, info_ptr->rowbytes)); - } - - png_read_image(png_ptr, info_ptr->row_pointers); - info_ptr->valid |= PNG_INFO_IDAT; - - /* Read rest of file, and get additional chunks in info_ptr - REQUIRED */ - png_read_end(png_ptr, info_ptr); - - PNG_UNUSED(params) -} -#endif /* PNG_INFO_IMAGE_SUPPORTED */ -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -#ifdef PNG_SIMPLIFIED_READ_SUPPORTED -/* SIMPLIFIED READ - * - * This code currently relies on the sequential reader, though it could easily - * be made to work with the progressive one. - */ -/* Arguments to png_image_finish_read: */ - -/* Encoding of PNG data (used by the color-map code) */ -# define P_NOTSET 0 /* File encoding not yet known */ -# define P_sRGB 1 /* 8-bit encoded to sRGB gamma */ -# define P_LINEAR 2 /* 16-bit linear: not encoded, NOT pre-multiplied! */ -# define P_FILE 3 /* 8-bit encoded to file gamma, not sRGB or linear */ -# define P_LINEAR8 4 /* 8-bit linear: only from a file value */ - -/* Color-map processing: after libpng has run on the PNG image further - * processing may be needed to conver the data to color-map indicies. - */ -#define PNG_CMAP_NONE 0 -#define PNG_CMAP_GA 1 /* Process GA data to a color-map with alpha */ -#define PNG_CMAP_TRANS 2 /* Process GA data to a background index */ -#define PNG_CMAP_RGB 3 /* Process RGB data */ -#define PNG_CMAP_RGB_ALPHA 4 /* Process RGBA data */ - -/* The following document where the background is for each processing case. */ -#define PNG_CMAP_NONE_BACKGROUND 256 -#define PNG_CMAP_GA_BACKGROUND 231 -#define PNG_CMAP_TRANS_BACKGROUND 254 -#define PNG_CMAP_RGB_BACKGROUND 256 -#define PNG_CMAP_RGB_ALPHA_BACKGROUND 216 - -typedef struct -{ - /* Arguments: */ - png_imagep image; - png_voidp buffer; - png_int_32 row_stride; - png_voidp colormap; - png_const_colorp background; - /* Local variables: */ - png_voidp local_row; - png_voidp first_row; - ptrdiff_t row_bytes; /* step between rows */ - int file_encoding; /* E_ values above */ - png_fixed_point gamma_to_linear; /* For P_FILE, reciprocal of gamma */ - int colormap_processing; /* PNG_CMAP_ values above */ -} png_image_read_control; - -/* Do all the *safe* initialization - 'safe' means that png_error won't be - * called, so setting up the jmp_buf is not required. This means that anything - * called from here must *not* call png_malloc - it has to call png_malloc_warn - * instead so that control is returned safely back to this routine. - */ -static int -png_image_read_init(png_imagep image) -{ - if (image->opaque == NULL) - { - png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, image, - png_safe_error, png_safe_warning); - - /* And set the rest of the structure to NULL to ensure that the various - * fields are consistent. - */ - memset(image, 0, (sizeof *image)); - image->version = PNG_IMAGE_VERSION; - - if (png_ptr != NULL) - { - png_infop info_ptr = png_create_info_struct(png_ptr); - - if (info_ptr != NULL) - { - png_controlp control = png_voidcast(png_controlp, - png_malloc_warn(png_ptr, (sizeof *control))); - - if (control != NULL) - { - memset(control, 0, (sizeof *control)); - - control->png_ptr = png_ptr; - control->info_ptr = info_ptr; - control->for_write = 0; - - image->opaque = control; - return 1; - } - - /* Error clean up */ - png_destroy_info_struct(png_ptr, &info_ptr); - } - - png_destroy_read_struct(&png_ptr, NULL, NULL); - } - - return png_image_error(image, "png_image_read: out of memory"); - } - - return png_image_error(image, "png_image_read: opaque pointer not NULL"); -} - -/* Utility to find the base format of a PNG file from a png_struct. */ -static png_uint_32 -png_image_format(png_structrp png_ptr) -{ - png_uint_32 format = 0; - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - format |= PNG_FORMAT_FLAG_COLOR; - - if (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) - format |= PNG_FORMAT_FLAG_ALPHA; - - /* Use png_ptr here, not info_ptr, because by examination png_handle_tRNS - * sets the png_struct fields; that's all we are interested in here. The - * precise interaction with an app call to png_set_tRNS and PNG file reading - * is unclear. - */ - else if (png_ptr->num_trans > 0) - format |= PNG_FORMAT_FLAG_ALPHA; - - if (png_ptr->bit_depth == 16) - format |= PNG_FORMAT_FLAG_LINEAR; - - if (png_ptr->color_type & PNG_COLOR_MASK_PALETTE) - format |= PNG_FORMAT_FLAG_COLORMAP; - - return format; -} - -/* Is the given gamma significantly different from sRGB? The test is the same - * one used in pngrtran.c when deciding whether to do gamma correction. The - * arithmetic optimizes the division by using the fact that the inverse of the - * file sRGB gamma is 2.2 - */ -static int -png_gamma_not_sRGB(png_fixed_point g) -{ - if (g < PNG_FP_1) - { - /* An uninitialized gamma is assumed to be sRGB for the simplified API. */ - if (g == 0) - return 0; - - return png_gamma_significant((g * 11 + 2)/5 /* i.e. *2.2, rounded */); - } - - return 1; -} - -/* Do the main body of a 'png_image_begin_read' function; read the PNG file - * header and fill in all the information. This is executed in a safe context, - * unlike the init routine above. - */ -static int -png_image_read_header(png_voidp argument) -{ - png_imagep image = png_voidcast(png_imagep, argument); - png_structrp png_ptr = image->opaque->png_ptr; - png_inforp info_ptr = image->opaque->info_ptr; - - png_set_benign_errors(png_ptr, 1/*warn*/); - png_read_info(png_ptr, info_ptr); - - /* Do this the fast way; just read directly out of png_struct. */ - image->width = png_ptr->width; - image->height = png_ptr->height; - - { - png_uint_32 format = png_image_format(png_ptr); - - image->format = format; - -#ifdef PNG_COLORSPACE_SUPPORTED - /* Does the colorspace match sRGB? If there is no color endpoint - * (colorant) information assume yes, otherwise require the - * 'ENDPOINTS_MATCHP_sRGB' colorspace flag to have been set. If the - * colorspace has been determined to be invalid ignore it. - */ - if ((format & PNG_FORMAT_FLAG_COLOR) != 0 && ((png_ptr->colorspace.flags - & (PNG_COLORSPACE_HAVE_ENDPOINTS|PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB| - PNG_COLORSPACE_INVALID)) == PNG_COLORSPACE_HAVE_ENDPOINTS)) - image->flags |= PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB; -#endif - } - - /* We need the maximum number of entries regardless of the format the - * application sets here. - */ - { - png_uint_32 cmap_entries; - - switch (png_ptr->color_type) - { - case PNG_COLOR_TYPE_GRAY: - cmap_entries = 1U << png_ptr->bit_depth; - break; - - case PNG_COLOR_TYPE_PALETTE: - cmap_entries = png_ptr->num_palette; - break; - - default: - cmap_entries = 256; - break; - } - - if (cmap_entries > 256) - cmap_entries = 256; - - image->colormap_entries = cmap_entries; - } - - return 1; -} - -#ifdef PNG_STDIO_SUPPORTED -int PNGAPI -png_image_begin_read_from_stdio(png_imagep image, FILE* file) -{ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - if (file != NULL) - { - if (png_image_read_init(image)) - { - /* This is slightly evil, but png_init_io doesn't do anything other - * than this and we haven't changed the standard IO functions so - * this saves a 'safe' function. - */ - image->opaque->png_ptr->io_ptr = file; - return png_safe_execute(image, png_image_read_header, image); - } - } - - else - return png_image_error(image, - "png_image_begin_read_from_stdio: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_begin_read_from_stdio: incorrect PNG_IMAGE_VERSION"); - - return 0; -} - -int PNGAPI -png_image_begin_read_from_file(png_imagep image, const char *file_name) -{ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - if (file_name != NULL) - { - FILE *fp = fopen(file_name, "rb"); - - if (fp != NULL) - { - if (png_image_read_init(image)) - { - image->opaque->png_ptr->io_ptr = fp; - image->opaque->owned_file = 1; - return png_safe_execute(image, png_image_read_header, image); - } - - /* Clean up: just the opened file. */ - (void)fclose(fp); - } - - else - return png_image_error(image, strerror(errno)); - } - - else - return png_image_error(image, - "png_image_begin_read_from_file: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_begin_read_from_file: incorrect PNG_IMAGE_VERSION"); - - return 0; -} -#endif /* PNG_STDIO_SUPPORTED */ - -static void PNGCBAPI -png_image_memory_read(png_structp png_ptr, png_bytep out, png_size_t need) -{ - if (png_ptr != NULL) - { - png_imagep image = png_voidcast(png_imagep, png_ptr->io_ptr); - if (image != NULL) - { - png_controlp cp = image->opaque; - if (cp != NULL) - { - png_const_bytep memory = cp->memory; - png_size_t size = cp->size; - - if (memory != NULL && size >= need) - { - memcpy(out, memory, need); - cp->memory = memory + need; - cp->size = size - need; - return; - } - - png_error(png_ptr, "read beyond end of data"); - } - } - - png_error(png_ptr, "invalid memory read"); - } -} - -int PNGAPI png_image_begin_read_from_memory(png_imagep image, - png_const_voidp memory, png_size_t size) -{ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - if (memory != NULL && size > 0) - { - if (png_image_read_init(image)) - { - /* Now set the IO functions to read from the memory buffer and - * store it into io_ptr. Again do this in-place to avoid calling a - * libpng function that requires error handling. - */ - image->opaque->memory = png_voidcast(png_const_bytep, memory); - image->opaque->size = size; - image->opaque->png_ptr->io_ptr = image; - image->opaque->png_ptr->read_data_fn = png_image_memory_read; - - return png_safe_execute(image, png_image_read_header, image); - } - } - - else - return png_image_error(image, - "png_image_begin_read_from_memory: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_begin_read_from_memory: incorrect PNG_IMAGE_VERSION"); - - return 0; -} - -/* Utility function to skip chunks that are not used by the simplified image - * read functions and an appropriate macro to call it. - */ -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -static void -png_image_skip_unused_chunks(png_structrp png_ptr) -{ - /* Prepare the reader to ignore all recognized chunks whose data will not - * be used, i.e., all chunks recognized by libpng except for those - * involved in basic image reading: - * - * IHDR, PLTE, IDAT, IEND - * - * Or image data handling: - * - * tRNS, bKGD, gAMA, cHRM, sRGB, [iCCP] and sBIT. - * - * This provides a small performance improvement and eliminates any - * potential vulnerability to security problems in the unused chunks. - * - * At present the iCCP chunk data isn't used, so iCCP chunk can be ignored - * too. This allows the simplified API to be compiled without iCCP support, - * however if the support is there the chunk is still checked to detect - * errors (which are unfortunately quite common.) - */ - { - static PNG_CONST png_byte chunks_to_process[] = { - 98, 75, 71, 68, '\0', /* bKGD */ - 99, 72, 82, 77, '\0', /* cHRM */ - 103, 65, 77, 65, '\0', /* gAMA */ -# ifdef PNG_READ_iCCP_SUPPORTED - 105, 67, 67, 80, '\0', /* iCCP */ -# endif - 115, 66, 73, 84, '\0', /* sBIT */ - 115, 82, 71, 66, '\0', /* sRGB */ - }; - - /* Ignore unknown chunks and all other chunks except for the - * IHDR, PLTE, tRNS, IDAT, and IEND chunks. - */ - png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_NEVER, - NULL, -1); - - /* But do not ignore image data handling chunks */ - png_set_keep_unknown_chunks(png_ptr, PNG_HANDLE_CHUNK_AS_DEFAULT, - chunks_to_process, (sizeof chunks_to_process)/5); - } -} - -# define PNG_SKIP_CHUNKS(p) png_image_skip_unused_chunks(p) -#else -# define PNG_SKIP_CHUNKS(p) ((void)0) -#endif /* PNG_HANDLE_AS_UNKNOWN_SUPPORTED */ - -/* The following macro gives the exact rounded answer for all values in the - * range 0..255 (it actually divides by 51.2, but the rounding still generates - * the correct numbers 0..5 - */ -#define PNG_DIV51(v8) (((v8) * 5 + 130) >> 8) - -/* Utility functions to make particular color-maps */ -static void -set_file_encoding(png_image_read_control *display) -{ - png_fixed_point g = display->image->opaque->png_ptr->colorspace.gamma; - if (png_gamma_significant(g)) - { - if (png_gamma_not_sRGB(g)) - { - display->file_encoding = P_FILE; - display->gamma_to_linear = png_reciprocal(g); - } - - else - display->file_encoding = P_sRGB; - } - - else - display->file_encoding = P_LINEAR8; -} - -static unsigned int -decode_gamma(png_image_read_control *display, png_uint_32 value, int encoding) -{ - if (encoding == P_FILE) /* double check */ - encoding = display->file_encoding; - - if (encoding == P_NOTSET) /* must be the file encoding */ - { - set_file_encoding(display); - encoding = display->file_encoding; - } - - switch (encoding) - { - case P_FILE: - value = png_gamma_16bit_correct(value*257, display->gamma_to_linear); - break; - - case P_sRGB: - value = png_sRGB_table[value]; - break; - - case P_LINEAR: - break; - - case P_LINEAR8: - value *= 257; - break; - - default: - png_error(display->image->opaque->png_ptr, - "unexpected encoding (internal error)"); - break; - } - - return value; -} - -static png_uint_32 -png_colormap_compose(png_image_read_control *display, - png_uint_32 foreground, int foreground_encoding, png_uint_32 alpha, - png_uint_32 background, int encoding) -{ - /* The file value is composed on the background, the background has the given - * encoding and so does the result, the file is encoded with P_FILE and the - * file and alpha are 8-bit values. The (output) encoding will always be - * P_LINEAR or P_sRGB. - */ - png_uint_32 f = decode_gamma(display, foreground, foreground_encoding); - png_uint_32 b = decode_gamma(display, background, encoding); - - /* The alpha is always an 8-bit value (it comes from the palette), the value - * scaled by 255 is what PNG_sRGB_FROM_LINEAR requires. - */ - f = f * alpha + b * (255-alpha); - - if (encoding == P_LINEAR) - { - /* Scale to 65535; divide by 255, approximately (in fact this is extremely - * accurate, it divides by 255.00000005937181414556, with no overflow.) - */ - f *= 257; /* Now scaled by 65535 */ - f += f >> 16; - f = (f+32768) >> 16; - } - - else /* P_sRGB */ - f = PNG_sRGB_FROM_LINEAR(f); - - return f; -} - -/* NOTE: P_LINEAR values to this routine must be 16-bit, but P_FILE values must - * be 8-bit. - */ -static void -png_create_colormap_entry(png_image_read_control *display, - png_uint_32 ip, png_uint_32 red, png_uint_32 green, png_uint_32 blue, - png_uint_32 alpha, int encoding) -{ - png_imagep image = display->image; - const int output_encoding = (image->format & PNG_FORMAT_FLAG_LINEAR) ? - P_LINEAR : P_sRGB; - const int convert_to_Y = (image->format & PNG_FORMAT_FLAG_COLOR) == 0 && - (red != green || green != blue); - - if (ip > 255) - png_error(image->opaque->png_ptr, "color-map index out of range"); - - /* Update the cache with whether the file gamma is significantly different - * from sRGB. - */ - if (encoding == P_FILE) - { - if (display->file_encoding == P_NOTSET) - set_file_encoding(display); - - /* Note that the cached value may be P_FILE too, but if it is then the - * gamma_to_linear member has been set. - */ - encoding = display->file_encoding; - } - - if (encoding == P_FILE) - { - png_fixed_point g = display->gamma_to_linear; - - red = png_gamma_16bit_correct(red*257, g); - green = png_gamma_16bit_correct(green*257, g); - blue = png_gamma_16bit_correct(blue*257, g); - - if (convert_to_Y || output_encoding == P_LINEAR) - { - alpha *= 257; - encoding = P_LINEAR; - } - - else - { - red = PNG_sRGB_FROM_LINEAR(red * 255); - green = PNG_sRGB_FROM_LINEAR(green * 255); - blue = PNG_sRGB_FROM_LINEAR(blue * 255); - encoding = P_sRGB; - } - } - - else if (encoding == P_LINEAR8) - { - /* This encoding occurs quite frequently in test cases because PngSuite - * includes a gAMA 1.0 chunk with most images. - */ - red *= 257; - green *= 257; - blue *= 257; - alpha *= 257; - encoding = P_LINEAR; - } - - else if (encoding == P_sRGB && (convert_to_Y || output_encoding == P_LINEAR)) - { - /* The values are 8-bit sRGB values, but must be converted to 16-bit - * linear. - */ - red = png_sRGB_table[red]; - green = png_sRGB_table[green]; - blue = png_sRGB_table[blue]; - alpha *= 257; - encoding = P_LINEAR; - } - - /* This is set if the color isn't gray but the output is. */ - if (encoding == P_LINEAR) - { - if (convert_to_Y != 0) - { - /* NOTE: these values are copied from png_do_rgb_to_gray */ - png_uint_32 y = (png_uint_32)6968 * red + (png_uint_32)23434 * green + - (png_uint_32)2366 * blue; - - if (output_encoding == P_LINEAR) - y = (y + 16384) >> 15; - - else - { - /* y is scaled by 32768, we need it scaled by 255: */ - y = (y + 128) >> 8; - y *= 255; - y = PNG_sRGB_FROM_LINEAR((y + 64) >> 7); - encoding = P_sRGB; - } - - blue = red = green = y; - } - - else if (output_encoding == P_sRGB) - { - red = PNG_sRGB_FROM_LINEAR(red * 255); - green = PNG_sRGB_FROM_LINEAR(green * 255); - blue = PNG_sRGB_FROM_LINEAR(blue * 255); - alpha = PNG_DIV257(alpha); - encoding = P_sRGB; - } - } - - if (encoding != output_encoding) - png_error(image->opaque->png_ptr, "bad encoding (internal error)"); - - /* Store the value. */ - { -# ifdef PNG_FORMAT_AFIRST_SUPPORTED - const int afirst = (image->format & PNG_FORMAT_FLAG_AFIRST) != 0 && - (image->format & PNG_FORMAT_FLAG_ALPHA) != 0; -# else -# define afirst 0 -# endif -# ifdef PNG_FORMAT_BGR_SUPPORTED - const int bgr = (image->format & PNG_FORMAT_FLAG_BGR) ? 2 : 0; -# else -# define bgr 0 -# endif - - if (output_encoding == P_LINEAR) - { - png_uint_16p entry = png_voidcast(png_uint_16p, display->colormap); - - entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format); - - /* The linear 16-bit values must be pre-multiplied by the alpha channel - * value, if less than 65535 (this is, effectively, composite on black - * if the alpha channel is removed.) - */ - switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format)) - { - case 4: - entry[afirst ? 0 : 3] = (png_uint_16)alpha; - /* FALL THROUGH */ - - case 3: - if (alpha < 65535) - { - if (alpha > 0) - { - blue = (blue * alpha + 32767U)/65535U; - green = (green * alpha + 32767U)/65535U; - red = (red * alpha + 32767U)/65535U; - } - - else - red = green = blue = 0; - } - entry[afirst + (2 ^ bgr)] = (png_uint_16)blue; - entry[afirst + 1] = (png_uint_16)green; - entry[afirst + bgr] = (png_uint_16)red; - break; - - case 2: - entry[1 ^ afirst] = (png_uint_16)alpha; - /* FALL THROUGH */ - - case 1: - if (alpha < 65535) - { - if (alpha > 0) - green = (green * alpha + 32767U)/65535U; - - else - green = 0; - } - entry[afirst] = (png_uint_16)green; - break; - - default: - break; - } - } - - else /* output encoding is P_sRGB */ - { - png_bytep entry = png_voidcast(png_bytep, display->colormap); - - entry += ip * PNG_IMAGE_SAMPLE_CHANNELS(image->format); - - switch (PNG_IMAGE_SAMPLE_CHANNELS(image->format)) - { - case 4: - entry[afirst ? 0 : 3] = (png_byte)alpha; - case 3: - entry[afirst + (2 ^ bgr)] = (png_byte)blue; - entry[afirst + 1] = (png_byte)green; - entry[afirst + bgr] = (png_byte)red; - break; - - case 2: - entry[1 ^ afirst] = (png_byte)alpha; - case 1: - entry[afirst] = (png_byte)green; - break; - - default: - break; - } - } - -# ifdef afirst -# undef afirst -# endif -# ifdef bgr -# undef bgr -# endif - } -} - -static int -make_gray_file_colormap(png_image_read_control *display) -{ - unsigned int i; - - for (i=0; i<256; ++i) - png_create_colormap_entry(display, i, i, i, i, 255, P_FILE); - - return i; -} - -static int -make_gray_colormap(png_image_read_control *display) -{ - unsigned int i; - - for (i=0; i<256; ++i) - png_create_colormap_entry(display, i, i, i, i, 255, P_sRGB); - - return i; -} -#define PNG_GRAY_COLORMAP_ENTRIES 256 - -static int -make_ga_colormap(png_image_read_control *display) -{ - unsigned int i, a; - - /* Alpha is retained, the output will be a color-map with entries - * selected by six levels of alpha. One transparent entry, 6 gray - * levels for all the intermediate alpha values, leaving 230 entries - * for the opaque grays. The color-map entries are the six values - * [0..5]*51, the GA processing uses PNG_DIV51(value) to find the - * relevant entry. - * - * if (alpha > 229) // opaque - * { - * // The 231 entries are selected to make the math below work: - * base = 0; - * entry = (231 * gray + 128) >> 8; - * } - * else if (alpha < 26) // transparent - * { - * base = 231; - * entry = 0; - * } - * else // partially opaque - * { - * base = 226 + 6 * PNG_DIV51(alpha); - * entry = PNG_DIV51(gray); - * } - */ - i = 0; - while (i < 231) - { - unsigned int gray = (i * 256 + 115) / 231; - png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB); - } - - /* 255 is used here for the component values for consistency with the code - * that undoes premultiplication in pngwrite.c. - */ - png_create_colormap_entry(display, i++, 255, 255, 255, 0, P_sRGB); - - for (a=1; a<5; ++a) - { - unsigned int g; - - for (g=0; g<6; ++g) - png_create_colormap_entry(display, i++, g*51, g*51, g*51, a*51, - P_sRGB); - } - - return i; -} - -#define PNG_GA_COLORMAP_ENTRIES 256 - -static int -make_rgb_colormap(png_image_read_control *display) -{ - unsigned int i, r; - - /* Build a 6x6x6 opaque RGB cube */ - for (i=r=0; r<6; ++r) - { - unsigned int g; - - for (g=0; g<6; ++g) - { - unsigned int b; - - for (b=0; b<6; ++b) - png_create_colormap_entry(display, i++, r*51, g*51, b*51, 255, - P_sRGB); - } - } - - return i; -} - -#define PNG_RGB_COLORMAP_ENTRIES 216 - -/* Return a palette index to the above palette given three 8-bit sRGB values. */ -#define PNG_RGB_INDEX(r,g,b) \ - ((png_byte)(6 * (6 * PNG_DIV51(r) + PNG_DIV51(g)) + PNG_DIV51(b))) - -static int -png_image_read_colormap(png_voidp argument) -{ - png_image_read_control *display = - png_voidcast(png_image_read_control*, argument); - const png_imagep image = display->image; - - const png_structrp png_ptr = image->opaque->png_ptr; - const png_uint_32 output_format = image->format; - const int output_encoding = (output_format & PNG_FORMAT_FLAG_LINEAR) ? - P_LINEAR : P_sRGB; - - unsigned int cmap_entries; - unsigned int output_processing; /* Output processing option */ - unsigned int data_encoding = P_NOTSET; /* Encoding libpng must produce */ - - /* Background information; the background color and the index of this color - * in the color-map if it exists (else 256). - */ - unsigned int background_index = 256; - png_uint_32 back_r, back_g, back_b; - - /* Flags to accumulate things that need to be done to the input. */ - int expand_tRNS = 0; - - /* Exclude the NYI feature of compositing onto a color-mapped buffer; it is - * very difficult to do, the results look awful, and it is difficult to see - * what possible use it is because the application can't control the - * color-map. - */ - if (((png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0 || - png_ptr->num_trans > 0) /* alpha in input */ && - ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) /* no alpha in output */) - { - if (output_encoding == P_LINEAR) /* compose on black */ - back_b = back_g = back_r = 0; - - else if (display->background == NULL /* no way to remove it */) - png_error(png_ptr, - "a background color must be supplied to remove alpha/transparency"); - - /* Get a copy of the background color (this avoids repeating the checks - * below.) The encoding is 8-bit sRGB or 16-bit linear, depending on the - * output format. - */ - else - { - back_g = display->background->green; - if (output_format & PNG_FORMAT_FLAG_COLOR) - { - back_r = display->background->red; - back_b = display->background->blue; - } - else - back_b = back_r = back_g; - } - } - - else if (output_encoding == P_LINEAR) - back_b = back_r = back_g = 65535; - - else - back_b = back_r = back_g = 255; - - /* Default the input file gamma if required - this is necessary because - * libpng assumes that if no gamma information is present the data is in the - * output format, but the simplified API deduces the gamma from the input - * format. - */ - if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_GAMMA) == 0) - { - /* Do this directly, not using the png_colorspace functions, to ensure - * that it happens even if the colorspace is invalid (though probably if - * it is the setting will be ignored) Note that the same thing can be - * achieved at the application interface with png_set_gAMA. - */ - if (png_ptr->bit_depth == 16 && - (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0) - png_ptr->colorspace.gamma = PNG_GAMMA_LINEAR; - - else - png_ptr->colorspace.gamma = PNG_GAMMA_sRGB_INVERSE; - - png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; - } - - /* Decide what to do based on the PNG color type of the input data. The - * utility function png_create_colormap_entry deals with most aspects of the - * output transformations; this code works out how to produce bytes of - * color-map entries from the original format. - */ - switch (png_ptr->color_type) - { - case PNG_COLOR_TYPE_GRAY: - if (png_ptr->bit_depth <= 8) - { - /* There at most 256 colors in the output, regardless of - * transparency. - */ - unsigned int step, i, val, trans = 256/*ignore*/, back_alpha = 0; - - cmap_entries = 1U << png_ptr->bit_depth; - if (cmap_entries > image->colormap_entries) - png_error(png_ptr, "gray[8] color-map: too few entries"); - - step = 255 / (cmap_entries - 1); - output_processing = PNG_CMAP_NONE; - - /* If there is a tRNS chunk then this either selects a transparent - * value or, if the output has no alpha, the background color. - */ - if (png_ptr->num_trans > 0) - { - trans = png_ptr->trans_color.gray; - - if ((output_format & PNG_FORMAT_FLAG_ALPHA) == 0) - back_alpha = output_encoding == P_LINEAR ? 65535 : 255; - } - - /* png_create_colormap_entry just takes an RGBA and writes the - * corresponding color-map entry using the format from 'image', - * including the required conversion to sRGB or linear as - * appropriate. The input values are always either sRGB (if the - * gamma correction flag is 0) or 0..255 scaled file encoded values - * (if the function must gamma correct them). - */ - for (i=val=0; ibit_depth < 8) - png_set_packing(png_ptr); - } - - else /* bit depth is 16 */ - { - /* The 16-bit input values can be converted directly to 8-bit gamma - * encoded values; however, if a tRNS chunk is present 257 color-map - * entries are required. This means that the extra entry requires - * special processing; add an alpha channel, sacrifice gray level - * 254 and convert transparent (alpha==0) entries to that. - * - * Use libpng to chop the data to 8 bits. Convert it to sRGB at the - * same time to minimize quality loss. If a tRNS chunk is present - * this means libpng must handle it too; otherwise it is impossible - * to do the exact match on the 16-bit value. - * - * If the output has no alpha channel *and* the background color is - * gray then it is possible to let libpng handle the substitution by - * ensuring that the corresponding gray level matches the background - * color exactly. - */ - data_encoding = P_sRGB; - - if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "gray[16] color-map: too few entries"); - - cmap_entries = make_gray_colormap(display); - - if (png_ptr->num_trans > 0) - { - unsigned int back_alpha; - - if (output_format & PNG_FORMAT_FLAG_ALPHA) - back_alpha = 0; - - else - { - if (back_r == back_g && back_g == back_b) - { - /* Background is gray; no special processing will be - * required. - */ - png_color_16 c; - png_uint_32 gray = back_g; - - if (output_encoding == P_LINEAR) - { - gray = PNG_sRGB_FROM_LINEAR(gray * 255); - - /* And make sure the corresponding palette entry - * matches. - */ - png_create_colormap_entry(display, gray, back_g, back_g, - back_g, 65535, P_LINEAR); - } - - /* The background passed to libpng, however, must be the - * sRGB value. - */ - c.index = 0; /*unused*/ - c.gray = c.red = c.green = c.blue = (png_uint_16)gray; - - /* NOTE: does this work without expanding tRNS to alpha? - * It should be the color->gray case below apparently - * doesn't. - */ - png_set_background_fixed(png_ptr, &c, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, - 0/*gamma: not used*/); - - output_processing = PNG_CMAP_NONE; - break; - } - - back_alpha = output_encoding == P_LINEAR ? 65535 : 255; - } - - /* output_processing means that the libpng-processed row will be - * 8-bit GA and it has to be processing to single byte color-map - * values. Entry 254 is replaced by either a completely - * transparent entry or by the background color at full - * precision (and the background color is not a simple gray leve - * in this case.) - */ - expand_tRNS = 1; - output_processing = PNG_CMAP_TRANS; - background_index = 254; - - /* And set (overwrite) color-map entry 254 to the actual - * background color at full precision. - */ - png_create_colormap_entry(display, 254, back_r, back_g, back_b, - back_alpha, output_encoding); - } - - else - output_processing = PNG_CMAP_NONE; - } - break; - - case PNG_COLOR_TYPE_GRAY_ALPHA: - /* 8-bit or 16-bit PNG with two channels - gray and alpha. A minimum - * of 65536 combinations. If, however, the alpha channel is to be - * removed there are only 256 possibilities if the background is gray. - * (Otherwise there is a subset of the 65536 possibilities defined by - * the triangle between black, white and the background color.) - * - * Reduce 16-bit files to 8-bit and sRGB encode the result. No need to - * worry about tRNS matching - tRNS is ignored if there is an alpha - * channel. - */ - data_encoding = P_sRGB; - - if (output_format & PNG_FORMAT_FLAG_ALPHA) - { - if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "gray+alpha color-map: too few entries"); - - cmap_entries = make_ga_colormap(display); - - background_index = PNG_CMAP_GA_BACKGROUND; - output_processing = PNG_CMAP_GA; - } - - else /* alpha is removed */ - { - /* Alpha must be removed as the PNG data is processed when the - * background is a color because the G and A channels are - * independent and the vector addition (non-parallel vectors) is a - * 2-D problem. - * - * This can be reduced to the same algorithm as above by making a - * colormap containing gray levels (for the opaque grays), a - * background entry (for a transparent pixel) and a set of four six - * level color values, one set for each intermediate alpha value. - * See the comments in make_ga_colormap for how this works in the - * per-pixel processing. - * - * If the background is gray, however, we only need a 256 entry gray - * level color map. It is sufficient to make the entry generated - * for the background color be exactly the color specified. - */ - if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0 || - (back_r == back_g && back_g == back_b)) - { - /* Background is gray; no special processing will be required. */ - png_color_16 c; - png_uint_32 gray = back_g; - - if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "gray-alpha color-map: too few entries"); - - cmap_entries = make_gray_colormap(display); - - if (output_encoding == P_LINEAR) - { - gray = PNG_sRGB_FROM_LINEAR(gray * 255); - - /* And make sure the corresponding palette entry matches. */ - png_create_colormap_entry(display, gray, back_g, back_g, - back_g, 65535, P_LINEAR); - } - - /* The background passed to libpng, however, must be the sRGB - * value. - */ - c.index = 0; /*unused*/ - c.gray = c.red = c.green = c.blue = (png_uint_16)gray; - - png_set_background_fixed(png_ptr, &c, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, - 0/*gamma: not used*/); - - output_processing = PNG_CMAP_NONE; - } - - else - { - png_uint_32 i, a; - - /* This is the same as png_make_ga_colormap, above, except that - * the entries are all opaque. - */ - if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "ga-alpha color-map: too few entries"); - - i = 0; - while (i < 231) - { - png_uint_32 gray = (i * 256 + 115) / 231; - png_create_colormap_entry(display, i++, gray, gray, gray, - 255, P_sRGB); - } - - /* NOTE: this preserves the full precision of the application - * background color. - */ - background_index = i; - png_create_colormap_entry(display, i++, back_r, back_g, back_b, - output_encoding == P_LINEAR ? 65535U : 255U, output_encoding); - - /* For non-opaque input composite on the sRGB background - this - * requires inverting the encoding for each component. The input - * is still converted to the sRGB encoding because this is a - * reasonable approximate to the logarithmic curve of human - * visual sensitivity, at least over the narrow range which PNG - * represents. Consequently 'G' is always sRGB encoded, while - * 'A' is linear. We need the linear background colors. - */ - if (output_encoding == P_sRGB) /* else already linear */ - { - /* This may produce a value not exactly matching the - * background, but that's ok because these numbers are only - * used when alpha != 0 - */ - back_r = png_sRGB_table[back_r]; - back_g = png_sRGB_table[back_g]; - back_b = png_sRGB_table[back_b]; - } - - for (a=1; a<5; ++a) - { - unsigned int g; - - /* PNG_sRGB_FROM_LINEAR expects a 16-bit linear value scaled - * by an 8-bit alpha value (0..255). - */ - png_uint_32 alpha = 51 * a; - png_uint_32 back_rx = (255-alpha) * back_r; - png_uint_32 back_gx = (255-alpha) * back_g; - png_uint_32 back_bx = (255-alpha) * back_b; - - for (g=0; g<6; ++g) - { - png_uint_32 gray = png_sRGB_table[g*51] * alpha; - - png_create_colormap_entry(display, i++, - PNG_sRGB_FROM_LINEAR(gray + back_rx), - PNG_sRGB_FROM_LINEAR(gray + back_gx), - PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB); - } - } - - cmap_entries = i; - output_processing = PNG_CMAP_GA; - } - } - break; - - case PNG_COLOR_TYPE_RGB: - case PNG_COLOR_TYPE_RGB_ALPHA: - /* Exclude the case where the output is gray; we can always handle this - * with the cases above. - */ - if ((output_format & PNG_FORMAT_FLAG_COLOR) == 0) - { - /* The color-map will be grayscale, so we may as well convert the - * input RGB values to a simple grayscale and use the grayscale - * code above. - * - * NOTE: calling this apparently damages the recognition of the - * transparent color in background color handling; call - * png_set_tRNS_to_alpha before png_set_background_fixed. - */ - png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, -1, - -1); - data_encoding = P_sRGB; - - /* The output will now be one or two 8-bit gray or gray+alpha - * channels. The more complex case arises when the input has alpha. - */ - if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - png_ptr->num_trans > 0) && - (output_format & PNG_FORMAT_FLAG_ALPHA) != 0) - { - /* Both input and output have an alpha channel, so no background - * processing is required; just map the GA bytes to the right - * color-map entry. - */ - expand_tRNS = 1; - - if (PNG_GA_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "rgb[ga] color-map: too few entries"); - - cmap_entries = make_ga_colormap(display); - background_index = PNG_CMAP_GA_BACKGROUND; - output_processing = PNG_CMAP_GA; - } - - else - { - /* Either the input or the output has no alpha channel, so there - * will be no non-opaque pixels in the color-map; it will just be - * grayscale. - */ - if (PNG_GRAY_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "rgb[gray] color-map: too few entries"); - - /* Ideally this code would use libpng to do the gamma correction, - * but if an input alpha channel is to be removed we will hit the - * libpng bug in gamma+compose+rgb-to-gray (the double gamma - * correction bug). Fix this by dropping the gamma correction in - * this case and doing it in the palette; this will result in - * duplicate palette entries, but that's better than the - * alternative of double gamma correction. - */ - if ((png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - png_ptr->num_trans > 0) && - png_gamma_not_sRGB(png_ptr->colorspace.gamma)) - { - cmap_entries = make_gray_file_colormap(display); - data_encoding = P_FILE; - } - - else - cmap_entries = make_gray_colormap(display); - - /* But if the input has alpha or transparency it must be removed - */ - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - png_ptr->num_trans > 0) - { - png_color_16 c; - png_uint_32 gray = back_g; - - /* We need to ensure that the application background exists in - * the colormap and that completely transparent pixels map to - * it. Achieve this simply by ensuring that the entry - * selected for the background really is the background color. - */ - if (data_encoding == P_FILE) /* from the fixup above */ - { - /* The app supplied a gray which is in output_encoding, we - * need to convert it to a value of the input (P_FILE) - * encoding then set this palette entry to the required - * output encoding. - */ - if (output_encoding == P_sRGB) - gray = png_sRGB_table[gray]; /* now P_LINEAR */ - - gray = PNG_DIV257(png_gamma_16bit_correct(gray, - png_ptr->colorspace.gamma)); /* now P_FILE */ - - /* And make sure the corresponding palette entry contains - * exactly the required sRGB value. - */ - png_create_colormap_entry(display, gray, back_g, back_g, - back_g, 0/*unused*/, output_encoding); - } - - else if (output_encoding == P_LINEAR) - { - gray = PNG_sRGB_FROM_LINEAR(gray * 255); - - /* And make sure the corresponding palette entry matches. - */ - png_create_colormap_entry(display, gray, back_g, back_g, - back_g, 0/*unused*/, P_LINEAR); - } - - /* The background passed to libpng, however, must be the - * output (normally sRGB) value. - */ - c.index = 0; /*unused*/ - c.gray = c.red = c.green = c.blue = (png_uint_16)gray; - - /* NOTE: the following is apparently a bug in libpng. Without - * it the transparent color recognition in - * png_set_background_fixed seems to go wrong. - */ - expand_tRNS = 1; - png_set_background_fixed(png_ptr, &c, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, - 0/*gamma: not used*/); - } - - output_processing = PNG_CMAP_NONE; - } - } - - else /* output is color */ - { - /* We could use png_quantize here so long as there is no transparent - * color or alpha; png_quantize ignores alpha. Easier overall just - * to do it once and using PNG_DIV51 on the 6x6x6 reduced RGB cube. - * Consequently we always want libpng to produce sRGB data. - */ - data_encoding = P_sRGB; - - /* Is there any transparency or alpha? */ - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - png_ptr->num_trans > 0) - { - /* Is there alpha in the output too? If so all four channels are - * processed into a special RGB cube with alpha support. - */ - if (output_format & PNG_FORMAT_FLAG_ALPHA) - { - png_uint_32 r; - - if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries) - png_error(png_ptr, "rgb+alpha color-map: too few entries"); - - cmap_entries = make_rgb_colormap(display); - - /* Add a transparent entry. */ - png_create_colormap_entry(display, cmap_entries, 255, 255, - 255, 0, P_sRGB); - - /* This is stored as the background index for the processing - * algorithm. - */ - background_index = cmap_entries++; - - /* Add 27 r,g,b entries each with alpha 0.5. */ - for (r=0; r<256; r = (r << 1) | 0x7f) - { - png_uint_32 g; - - for (g=0; g<256; g = (g << 1) | 0x7f) - { - png_uint_32 b; - - /* This generates components with the values 0, 127 and - * 255 - */ - for (b=0; b<256; b = (b << 1) | 0x7f) - png_create_colormap_entry(display, cmap_entries++, - r, g, b, 128, P_sRGB); - } - } - - expand_tRNS = 1; - output_processing = PNG_CMAP_RGB_ALPHA; - } - - else - { - /* Alpha/transparency must be removed. The background must - * exist in the color map (achieved by setting adding it after - * the 666 color-map). If the standard processing code will - * pick up this entry automatically that's all that is - * required; libpng can be called to do the background - * processing. - */ - unsigned int sample_size = - PNG_IMAGE_SAMPLE_SIZE(output_format); - png_uint_32 r, g, b; /* sRGB background */ - - if (PNG_RGB_COLORMAP_ENTRIES+1+27 > image->colormap_entries) - png_error(png_ptr, "rgb-alpha color-map: too few entries"); - - cmap_entries = make_rgb_colormap(display); - - png_create_colormap_entry(display, cmap_entries, back_r, - back_g, back_b, 0/*unused*/, output_encoding); - - if (output_encoding == P_LINEAR) - { - r = PNG_sRGB_FROM_LINEAR(back_r * 255); - g = PNG_sRGB_FROM_LINEAR(back_g * 255); - b = PNG_sRGB_FROM_LINEAR(back_b * 255); - } - - else - { - r = back_r; - g = back_g; - b = back_g; - } - - /* Compare the newly-created color-map entry with the one the - * PNG_CMAP_RGB algorithm will use. If the two entries don't - * match, add the new one and set this as the background - * index. - */ - if (memcmp((png_const_bytep)display->colormap + - sample_size * cmap_entries, - (png_const_bytep)display->colormap + - sample_size * PNG_RGB_INDEX(r,g,b), - sample_size) != 0) - { - /* The background color must be added. */ - background_index = cmap_entries++; - - /* Add 27 r,g,b entries each with created by composing with - * the background at alpha 0.5. - */ - for (r=0; r<256; r = (r << 1) | 0x7f) - { - for (g=0; g<256; g = (g << 1) | 0x7f) - { - /* This generates components with the values 0, 127 - * and 255 - */ - for (b=0; b<256; b = (b << 1) | 0x7f) - png_create_colormap_entry(display, cmap_entries++, - png_colormap_compose(display, r, P_sRGB, 128, - back_r, output_encoding), - png_colormap_compose(display, g, P_sRGB, 128, - back_g, output_encoding), - png_colormap_compose(display, b, P_sRGB, 128, - back_b, output_encoding), - 0/*unused*/, output_encoding); - } - } - - expand_tRNS = 1; - output_processing = PNG_CMAP_RGB_ALPHA; - } - - else /* background color is in the standard color-map */ - { - png_color_16 c; - - c.index = 0; /*unused*/ - c.red = (png_uint_16)back_r; - c.gray = c.green = (png_uint_16)back_g; - c.blue = (png_uint_16)back_b; - - png_set_background_fixed(png_ptr, &c, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, - 0/*gamma: not used*/); - - output_processing = PNG_CMAP_RGB; - } - } - } - - else /* no alpha or transparency in the input */ - { - /* Alpha in the output is irrelevant, simply map the opaque input - * pixels to the 6x6x6 color-map. - */ - if (PNG_RGB_COLORMAP_ENTRIES > image->colormap_entries) - png_error(png_ptr, "rgb color-map: too few entries"); - - cmap_entries = make_rgb_colormap(display); - output_processing = PNG_CMAP_RGB; - } - } - break; - - case PNG_COLOR_TYPE_PALETTE: - /* It's already got a color-map. It may be necessary to eliminate the - * tRNS entries though. - */ - { - unsigned int num_trans = png_ptr->num_trans; - png_const_bytep trans = num_trans > 0 ? png_ptr->trans_alpha : NULL; - png_const_colorp colormap = png_ptr->palette; - const int do_background = trans != NULL && - (output_format & PNG_FORMAT_FLAG_ALPHA) == 0; - unsigned int i; - - /* Just in case: */ - if (trans == NULL) - num_trans = 0; - - output_processing = PNG_CMAP_NONE; - data_encoding = P_FILE; /* Don't change from color-map indicies */ - cmap_entries = png_ptr->num_palette; - if (cmap_entries > 256) - cmap_entries = 256; - - if (cmap_entries > image->colormap_entries) - png_error(png_ptr, "palette color-map: too few entries"); - - for (i=0; i < cmap_entries; ++i) - { - if (do_background && i < num_trans && trans[i] < 255) - { - if (trans[i] == 0) - png_create_colormap_entry(display, i, back_r, back_g, - back_b, 0, output_encoding); - - else - { - /* Must compose the PNG file color in the color-map entry - * on the sRGB color in 'back'. - */ - png_create_colormap_entry(display, i, - png_colormap_compose(display, colormap[i].red, P_FILE, - trans[i], back_r, output_encoding), - png_colormap_compose(display, colormap[i].green, P_FILE, - trans[i], back_g, output_encoding), - png_colormap_compose(display, colormap[i].blue, P_FILE, - trans[i], back_b, output_encoding), - output_encoding == P_LINEAR ? trans[i] * 257U : - trans[i], - output_encoding); - } - } - - else - png_create_colormap_entry(display, i, colormap[i].red, - colormap[i].green, colormap[i].blue, - i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/); - } - - /* The PNG data may have indicies packed in fewer than 8 bits, it - * must be expanded if so. - */ - if (png_ptr->bit_depth < 8) - png_set_packing(png_ptr); - } - break; - - default: - png_error(png_ptr, "invalid PNG color type"); - /*NOT REACHED*/ - break; - } - - /* Now deal with the output processing */ - if (expand_tRNS && png_ptr->num_trans > 0 && - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) == 0) - png_set_tRNS_to_alpha(png_ptr); - - switch (data_encoding) - { - default: - png_error(png_ptr, "bad data option (internal error)"); - break; - - case P_sRGB: - /* Change to 8-bit sRGB */ - png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, PNG_GAMMA_sRGB); - /* FALL THROUGH */ - - case P_FILE: - if (png_ptr->bit_depth > 8) - png_set_scale_16(png_ptr); - break; - } - - if (cmap_entries > 256 || cmap_entries > image->colormap_entries) - png_error(png_ptr, "color map overflow (BAD internal error)"); - - image->colormap_entries = cmap_entries; - - /* Double check using the recorded background index */ - switch (output_processing) - { - case PNG_CMAP_NONE: - if (background_index != PNG_CMAP_NONE_BACKGROUND) - goto bad_background; - break; - - case PNG_CMAP_GA: - if (background_index != PNG_CMAP_GA_BACKGROUND) - goto bad_background; - break; - - case PNG_CMAP_TRANS: - if (background_index >= cmap_entries || - background_index != PNG_CMAP_TRANS_BACKGROUND) - goto bad_background; - break; - - case PNG_CMAP_RGB: - if (background_index != PNG_CMAP_RGB_BACKGROUND) - goto bad_background; - break; - - case PNG_CMAP_RGB_ALPHA: - if (background_index != PNG_CMAP_RGB_ALPHA_BACKGROUND) - goto bad_background; - break; - - default: - png_error(png_ptr, "bad processing option (internal error)"); - - bad_background: - png_error(png_ptr, "bad background index (internal error)"); - } - - display->colormap_processing = output_processing; - - return 1/*ok*/; -} - -/* The final part of the color-map read called from png_image_finish_read. */ -static int -png_image_read_and_map(png_voidp argument) -{ - png_image_read_control *display = png_voidcast(png_image_read_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - int passes; - - /* Called when the libpng data must be transformed into the color-mapped - * form. There is a local row buffer in display->local and this routine must - * do the interlace handling. - */ - switch (png_ptr->interlaced) - { - case PNG_INTERLACE_NONE: - passes = 1; - break; - - case PNG_INTERLACE_ADAM7: - passes = PNG_INTERLACE_ADAM7_PASSES; - break; - - default: - png_error(png_ptr, "unknown interlace type"); - } - - { - png_uint_32 height = image->height; - png_uint_32 width = image->width; - int proc = display->colormap_processing; - png_bytep first_row = png_voidcast(png_bytep, display->first_row); - ptrdiff_t step_row = display->row_bytes; - int pass; - - for (pass = 0; pass < passes; ++pass) - { - unsigned int startx, stepx, stepy; - png_uint_32 y; - - if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) - { - /* The row may be empty for a short image: */ - if (PNG_PASS_COLS(width, pass) == 0) - continue; - - startx = PNG_PASS_START_COL(pass); - stepx = PNG_PASS_COL_OFFSET(pass); - y = PNG_PASS_START_ROW(pass); - stepy = PNG_PASS_ROW_OFFSET(pass); - } - - else - { - y = 0; - startx = 0; - stepx = stepy = 1; - } - - for (; ylocal_row); - png_bytep outrow = first_row + y * step_row; - png_const_bytep end_row = outrow + width; - - /* Read read the libpng data into the temporary buffer. */ - png_read_row(png_ptr, inrow, NULL); - - /* Now process the row according to the processing option, note - * that the caller verifies that the format of the libpng output - * data is as required. - */ - outrow += startx; - switch (proc) - { - case PNG_CMAP_GA: - for (; outrow < end_row; outrow += stepx) - { - /* The data is always in the PNG order */ - unsigned int gray = *inrow++; - unsigned int alpha = *inrow++; - unsigned int entry; - - /* NOTE: this code is copied as a comment in - * make_ga_colormap above. Please update the - * comment if you change this code! - */ - if (alpha > 229) /* opaque */ - { - entry = (231 * gray + 128) >> 8; - } - else if (alpha < 26) /* transparent */ - { - entry = 231; - } - else /* partially opaque */ - { - entry = 226 + 6 * PNG_DIV51(alpha) + PNG_DIV51(gray); - } - - *outrow = (png_byte)entry; - } - break; - - case PNG_CMAP_TRANS: - for (; outrow < end_row; outrow += stepx) - { - png_byte gray = *inrow++; - png_byte alpha = *inrow++; - - if (alpha == 0) - *outrow = PNG_CMAP_TRANS_BACKGROUND; - - else if (gray != PNG_CMAP_TRANS_BACKGROUND) - *outrow = gray; - - else - *outrow = (png_byte)(PNG_CMAP_TRANS_BACKGROUND+1); - } - break; - - case PNG_CMAP_RGB: - for (; outrow < end_row; outrow += stepx) - { - *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], inrow[2]); - inrow += 3; - } - break; - - case PNG_CMAP_RGB_ALPHA: - for (; outrow < end_row; outrow += stepx) - { - unsigned int alpha = inrow[3]; - - /* Because the alpha entries only hold alpha==0.5 values - * split the processing at alpha==0.25 (64) and 0.75 - * (196). - */ - - if (alpha >= 196) - *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], - inrow[2]); - - else if (alpha < 64) - *outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND; - - else - { - /* Likewise there are three entries for each of r, g - * and b. We could select the entry by popcount on - * the top two bits on those architectures that - * support it, this is what the code below does, - * crudely. - */ - unsigned int back_i = PNG_CMAP_RGB_ALPHA_BACKGROUND+1; - - /* Here are how the values map: - * - * 0x00 .. 0x3f -> 0 - * 0x40 .. 0xbf -> 1 - * 0xc0 .. 0xff -> 2 - * - * So, as above with the explicit alpha checks, the - * breakpoints are at 64 and 196. - */ - if (inrow[0] & 0x80) back_i += 9; /* red */ - if (inrow[0] & 0x40) back_i += 9; - if (inrow[0] & 0x80) back_i += 3; /* green */ - if (inrow[0] & 0x40) back_i += 3; - if (inrow[0] & 0x80) back_i += 1; /* blue */ - if (inrow[0] & 0x40) back_i += 1; - - *outrow = (png_byte)back_i; - } - - inrow += 4; - } - break; - - default: - break; - } - } - } - } - - return 1; -} - -static int -png_image_read_colormapped(png_voidp argument) -{ - png_image_read_control *display = png_voidcast(png_image_read_control*, - argument); - png_imagep image = display->image; - png_controlp control = image->opaque; - png_structrp png_ptr = control->png_ptr; - png_inforp info_ptr = control->info_ptr; - - int passes = 0; /* As a flag */ - - PNG_SKIP_CHUNKS(png_ptr); - - /* Update the 'info' structure and make sure the result is as required; first - * make sure to turn on the interlace handling if it will be required - * (because it can't be turned on *after* the call to png_read_update_info!) - */ - if (display->colormap_processing == PNG_CMAP_NONE) - passes = png_set_interlace_handling(png_ptr); - - png_read_update_info(png_ptr, info_ptr); - - /* The expected output can be deduced from the colormap_processing option. */ - switch (display->colormap_processing) - { - case PNG_CMAP_NONE: - /* Output must be one channel and one byte per pixel, the output - * encoding can be anything. - */ - if ((info_ptr->color_type == PNG_COLOR_TYPE_PALETTE || - info_ptr->color_type == PNG_COLOR_TYPE_GRAY) && - info_ptr->bit_depth == 8) - break; - - goto bad_output; - - case PNG_CMAP_TRANS: - case PNG_CMAP_GA: - /* Output must be two channels and the 'G' one must be sRGB, the latter - * can be checked with an exact number because it should have been set - * to this number above! - */ - if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - info_ptr->bit_depth == 8 && - png_ptr->screen_gamma == PNG_GAMMA_sRGB && - image->colormap_entries == 256) - break; - - goto bad_output; - - case PNG_CMAP_RGB: - /* Output must be 8-bit sRGB encoded RGB */ - if (info_ptr->color_type == PNG_COLOR_TYPE_RGB && - info_ptr->bit_depth == 8 && - png_ptr->screen_gamma == PNG_GAMMA_sRGB && - image->colormap_entries == 216) - break; - - goto bad_output; - - case PNG_CMAP_RGB_ALPHA: - /* Output must be 8-bit sRGB encoded RGBA */ - if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA && - info_ptr->bit_depth == 8 && - png_ptr->screen_gamma == PNG_GAMMA_sRGB && - image->colormap_entries == 244 /* 216 + 1 + 27 */) - break; - - /* goto bad_output; */ - /* FALL THROUGH */ - - default: - bad_output: - png_error(png_ptr, "bad color-map processing (internal error)"); - } - - /* Now read the rows. Do this here if it is possible to read directly into - * the output buffer, otherwise allocate a local row buffer of the maximum - * size libpng requires and call the relevant processing routine safely. - */ - { - png_voidp first_row = display->buffer; - ptrdiff_t row_bytes = display->row_stride; - - /* The following expression is designed to work correctly whether it gives - * a signed or an unsigned result. - */ - if (row_bytes < 0) - { - char *ptr = png_voidcast(char*, first_row); - ptr += (image->height-1) * (-row_bytes); - first_row = png_voidcast(png_voidp, ptr); - } - - display->first_row = first_row; - display->row_bytes = row_bytes; - } - - if (passes == 0) - { - int result; - png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); - - display->local_row = row; - result = png_safe_execute(image, png_image_read_and_map, display); - display->local_row = NULL; - png_free(png_ptr, row); - - return result; - } - - else - { - png_alloc_size_t row_bytes = display->row_bytes; - - while (--passes >= 0) - { - png_uint_32 y = image->height; - png_bytep row = png_voidcast(png_bytep, display->first_row); - - while (y-- > 0) - { - png_read_row(png_ptr, row, NULL); - row += row_bytes; - } - } - - return 1; - } -} - -/* Just the row reading part of png_image_read. */ -static int -png_image_read_composite(png_voidp argument) -{ - png_image_read_control *display = png_voidcast(png_image_read_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - int passes; - - switch (png_ptr->interlaced) - { - case PNG_INTERLACE_NONE: - passes = 1; - break; - - case PNG_INTERLACE_ADAM7: - passes = PNG_INTERLACE_ADAM7_PASSES; - break; - - default: - png_error(png_ptr, "unknown interlace type"); - } - - { - png_uint_32 height = image->height; - png_uint_32 width = image->width; - ptrdiff_t step_row = display->row_bytes; - unsigned int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; - int pass; - - for (pass = 0; pass < passes; ++pass) - { - unsigned int startx, stepx, stepy; - png_uint_32 y; - - if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) - { - /* The row may be empty for a short image: */ - if (PNG_PASS_COLS(width, pass) == 0) - continue; - - startx = PNG_PASS_START_COL(pass) * channels; - stepx = PNG_PASS_COL_OFFSET(pass) * channels; - y = PNG_PASS_START_ROW(pass); - stepy = PNG_PASS_ROW_OFFSET(pass); - } - - else - { - y = 0; - startx = 0; - stepx = channels; - stepy = 1; - } - - for (; ylocal_row); - png_bytep outrow; - png_const_bytep end_row; - - /* Read the row, which is packed: */ - png_read_row(png_ptr, inrow, NULL); - - outrow = png_voidcast(png_bytep, display->first_row); - outrow += y * step_row; - end_row = outrow + width * channels; - - /* Now do the composition on each pixel in this row. */ - outrow += startx; - for (; outrow < end_row; outrow += stepx) - { - png_byte alpha = inrow[channels]; - - if (alpha > 0) /* else no change to the output */ - { - unsigned int c; - - for (c=0; cimage; - png_structrp png_ptr = image->opaque->png_ptr; - png_inforp info_ptr = image->opaque->info_ptr; - png_uint_32 height = image->height; - png_uint_32 width = image->width; - int pass, passes; - - /* Double check the convoluted logic below. We expect to get here with - * libpng doing rgb to gray and gamma correction but background processing - * left to the png_image_read_background function. The rows libpng produce - * might be 8 or 16-bit but should always have two channels; gray plus alpha. - */ - if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == 0) - png_error(png_ptr, "lost rgb to gray"); - - if ((png_ptr->transformations & PNG_COMPOSE) != 0) - png_error(png_ptr, "unexpected compose"); - - if (png_get_channels(png_ptr, info_ptr) != 2) - png_error(png_ptr, "lost/gained channels"); - - /* Expect the 8-bit case to always remove the alpha channel */ - if ((image->format & PNG_FORMAT_FLAG_LINEAR) == 0 && - (image->format & PNG_FORMAT_FLAG_ALPHA) != 0) - png_error(png_ptr, "unexpected 8-bit transformation"); - - switch (png_ptr->interlaced) - { - case PNG_INTERLACE_NONE: - passes = 1; - break; - - case PNG_INTERLACE_ADAM7: - passes = PNG_INTERLACE_ADAM7_PASSES; - break; - - default: - png_error(png_ptr, "unknown interlace type"); - } - - /* Use direct access to info_ptr here because otherwise the simplified API - * would require PNG_EASY_ACCESS_SUPPORTED (just for this.) Note this is - * checking the value after libpng expansions, not the original value in the - * PNG. - */ - switch (info_ptr->bit_depth) - { - default: - png_error(png_ptr, "unexpected bit depth"); - break; - - case 8: - /* 8-bit sRGB gray values with an alpha channel; the alpha channel is - * to be removed by composing on a background: either the row if - * display->background is NULL or display->background->green if not. - * Unlike the code above ALPHA_OPTIMIZED has *not* been done. - */ - { - png_bytep first_row = png_voidcast(png_bytep, display->first_row); - ptrdiff_t step_row = display->row_bytes; - - for (pass = 0; pass < passes; ++pass) - { - png_bytep row = png_voidcast(png_bytep, - display->first_row); - unsigned int startx, stepx, stepy; - png_uint_32 y; - - if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) - { - /* The row may be empty for a short image: */ - if (PNG_PASS_COLS(width, pass) == 0) - continue; - - startx = PNG_PASS_START_COL(pass); - stepx = PNG_PASS_COL_OFFSET(pass); - y = PNG_PASS_START_ROW(pass); - stepy = PNG_PASS_ROW_OFFSET(pass); - } - - else - { - y = 0; - startx = 0; - stepx = stepy = 1; - } - - if (display->background == NULL) - { - for (; ylocal_row); - png_bytep outrow = first_row + y * step_row; - png_const_bytep end_row = outrow + width; - - /* Read the row, which is packed: */ - png_read_row(png_ptr, inrow, NULL); - - /* Now do the composition on each pixel in this row. */ - outrow += startx; - for (; outrow < end_row; outrow += stepx) - { - png_byte alpha = inrow[1]; - - if (alpha > 0) /* else no change to the output */ - { - png_uint_32 component = inrow[0]; - - if (alpha < 255) /* else just use component */ - { - /* Since PNG_OPTIMIZED_ALPHA was not set it is - * necessary to invert the sRGB transfer - * function and multiply the alpha out. - */ - component = png_sRGB_table[component] * alpha; - component += png_sRGB_table[outrow[0]] * - (255-alpha); - component = PNG_sRGB_FROM_LINEAR(component); - } - - outrow[0] = (png_byte)component; - } - - inrow += 2; /* gray and alpha channel */ - } - } - } - - else /* constant background value */ - { - png_byte background8 = display->background->green; - png_uint_16 background = png_sRGB_table[background8]; - - for (; ylocal_row); - png_bytep outrow = first_row + y * step_row; - png_const_bytep end_row = outrow + width; - - /* Read the row, which is packed: */ - png_read_row(png_ptr, inrow, NULL); - - /* Now do the composition on each pixel in this row. */ - outrow += startx; - for (; outrow < end_row; outrow += stepx) - { - png_byte alpha = inrow[1]; - - if (alpha > 0) /* else use background */ - { - png_uint_32 component = inrow[0]; - - if (alpha < 255) /* else just use component */ - { - component = png_sRGB_table[component] * alpha; - component += background * (255-alpha); - component = PNG_sRGB_FROM_LINEAR(component); - } - - outrow[0] = (png_byte)component; - } - - else - outrow[0] = background8; - - inrow += 2; /* gray and alpha channel */ - } - - row += display->row_bytes; - } - } - } - } - break; - - case 16: - /* 16-bit linear with pre-multiplied alpha; the pre-multiplication must - * still be done and, maybe, the alpha channel removed. This code also - * handles the alpha-first option. - */ - { - png_uint_16p first_row = png_voidcast(png_uint_16p, - display->first_row); - /* The division by two is safe because the caller passed in a - * stride which was multiplied by 2 (below) to get row_bytes. - */ - ptrdiff_t step_row = display->row_bytes / 2; - int preserve_alpha = (image->format & PNG_FORMAT_FLAG_ALPHA) != 0; - unsigned int outchannels = 1+preserve_alpha; - int swap_alpha = 0; - -# ifdef PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED - if (preserve_alpha && (image->format & PNG_FORMAT_FLAG_AFIRST)) - swap_alpha = 1; -# endif - - for (pass = 0; pass < passes; ++pass) - { - unsigned int startx, stepx, stepy; - png_uint_32 y; - - /* The 'x' start and step are adjusted to output components here. - */ - if (png_ptr->interlaced == PNG_INTERLACE_ADAM7) - { - /* The row may be empty for a short image: */ - if (PNG_PASS_COLS(width, pass) == 0) - continue; - - startx = PNG_PASS_START_COL(pass) * outchannels; - stepx = PNG_PASS_COL_OFFSET(pass) * outchannels; - y = PNG_PASS_START_ROW(pass); - stepy = PNG_PASS_ROW_OFFSET(pass); - } - - else - { - y = 0; - startx = 0; - stepx = outchannels; - stepy = 1; - } - - for (; ylocal_row), NULL); - inrow = png_voidcast(png_const_uint_16p, display->local_row); - - /* Now do the pre-multiplication on each pixel in this row. - */ - outrow += startx; - for (; outrow < end_row; outrow += stepx) - { - png_uint_32 component = inrow[0]; - png_uint_16 alpha = inrow[1]; - - if (alpha > 0) /* else 0 */ - { - if (alpha < 65535) /* else just use component */ - { - component *= alpha; - component += 32767; - component /= 65535; - } - } - - else - component = 0; - - outrow[swap_alpha] = (png_uint_16)component; - if (preserve_alpha != 0) - outrow[1 ^ swap_alpha] = alpha; - - inrow += 2; /* components and alpha channel */ - } - } - } - } - break; - } - - return 1; -} - -/* The guts of png_image_finish_read as a png_safe_execute callback. */ -static int -png_image_read_direct(png_voidp argument) -{ - png_image_read_control *display = png_voidcast(png_image_read_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - png_inforp info_ptr = image->opaque->info_ptr; - - png_uint_32 format = image->format; - int linear = (format & PNG_FORMAT_FLAG_LINEAR) != 0; - int do_local_compose = 0; - int do_local_background = 0; /* to avoid double gamma correction bug */ - int passes = 0; - - /* Add transforms to ensure the correct output format is produced then check - * that the required implementation support is there. Always expand; always - * need 8 bits minimum, no palette and expanded tRNS. - */ - png_set_expand(png_ptr); - - /* Now check the format to see if it was modified. */ - { - png_uint_32 base_format = png_image_format(png_ptr) & - ~PNG_FORMAT_FLAG_COLORMAP /* removed by png_set_expand */; - png_uint_32 change = format ^ base_format; - png_fixed_point output_gamma; - int mode; /* alpha mode */ - - /* Do this first so that we have a record if rgb to gray is happening. */ - if (change & PNG_FORMAT_FLAG_COLOR) - { - /* gray<->color transformation required. */ - if (format & PNG_FORMAT_FLAG_COLOR) - png_set_gray_to_rgb(png_ptr); - - else - { - /* libpng can't do both rgb to gray and - * background/pre-multiplication if there is also significant gamma - * correction, because both operations require linear colors and - * the code only supports one transform doing the gamma correction. - * Handle this by doing the pre-multiplication or background - * operation in this code, if necessary. - * - * TODO: fix this by rewriting pngrtran.c (!) - * - * For the moment (given that fixing this in pngrtran.c is an - * enormous change) 'do_local_background' is used to indicate that - * the problem exists. - */ - if (base_format & PNG_FORMAT_FLAG_ALPHA) - do_local_background = 1/*maybe*/; - - png_set_rgb_to_gray_fixed(png_ptr, PNG_ERROR_ACTION_NONE, - PNG_RGB_TO_GRAY_DEFAULT, PNG_RGB_TO_GRAY_DEFAULT); - } - - change &= ~PNG_FORMAT_FLAG_COLOR; - } - - /* Set the gamma appropriately, linear for 16-bit input, sRGB otherwise. - */ - { - png_fixed_point input_gamma_default; - - if ((base_format & PNG_FORMAT_FLAG_LINEAR) && - (image->flags & PNG_IMAGE_FLAG_16BIT_sRGB) == 0) - input_gamma_default = PNG_GAMMA_LINEAR; - else - input_gamma_default = PNG_DEFAULT_sRGB; - - /* Call png_set_alpha_mode to set the default for the input gamma; the - * output gamma is set by a second call below. - */ - png_set_alpha_mode_fixed(png_ptr, PNG_ALPHA_PNG, input_gamma_default); - } - - if (linear != 0) - { - /* If there *is* an alpha channel in the input it must be multiplied - * out; use PNG_ALPHA_STANDARD, otherwise just use PNG_ALPHA_PNG. - */ - if (base_format & PNG_FORMAT_FLAG_ALPHA) - mode = PNG_ALPHA_STANDARD; /* associated alpha */ - - else - mode = PNG_ALPHA_PNG; - - output_gamma = PNG_GAMMA_LINEAR; - } - - else - { - mode = PNG_ALPHA_PNG; - output_gamma = PNG_DEFAULT_sRGB; - } - - /* If 'do_local_background' is set check for the presence of gamma - * correction; this is part of the work-round for the libpng bug - * described above. - * - * TODO: fix libpng and remove this. - */ - if (do_local_background != 0) - { - png_fixed_point gtest; - - /* This is 'png_gamma_threshold' from pngrtran.c; the test used for - * gamma correction, the screen gamma hasn't been set on png_struct - * yet; it's set below. png_struct::gamma, however, is set to the - * final value. - */ - if (png_muldiv(>est, output_gamma, png_ptr->colorspace.gamma, - PNG_FP_1) && !png_gamma_significant(gtest)) - do_local_background = 0; - - else if (mode == PNG_ALPHA_STANDARD) - { - do_local_background = 2/*required*/; - mode = PNG_ALPHA_PNG; /* prevent libpng doing it */ - } - - /* else leave as 1 for the checks below */ - } - - /* If the bit-depth changes then handle that here. */ - if (change & PNG_FORMAT_FLAG_LINEAR) - { - if (linear /*16-bit output*/) - png_set_expand_16(png_ptr); - - else /* 8-bit output */ - png_set_scale_16(png_ptr); - - change &= ~PNG_FORMAT_FLAG_LINEAR; - } - - /* Now the background/alpha channel changes. */ - if (change & PNG_FORMAT_FLAG_ALPHA) - { - /* Removing an alpha channel requires composition for the 8-bit - * formats; for the 16-bit it is already done, above, by the - * pre-multiplication and the channel just needs to be stripped. - */ - if (base_format & PNG_FORMAT_FLAG_ALPHA) - { - /* If RGB->gray is happening the alpha channel must be left and the - * operation completed locally. - * - * TODO: fix libpng and remove this. - */ - if (do_local_background != 0) - do_local_background = 2/*required*/; - - /* 16-bit output: just remove the channel */ - else if (linear != 0) /* compose on black (well, pre-multiply) */ - png_set_strip_alpha(png_ptr); - - /* 8-bit output: do an appropriate compose */ - else if (display->background != NULL) - { - png_color_16 c; - - c.index = 0; /*unused*/ - c.red = display->background->red; - c.green = display->background->green; - c.blue = display->background->blue; - c.gray = display->background->green; - - /* This is always an 8-bit sRGB value, using the 'green' channel - * for gray is much better than calculating the luminance here; - * we can get off-by-one errors in that calculation relative to - * the app expectations and that will show up in transparent - * pixels. - */ - png_set_background_fixed(png_ptr, &c, - PNG_BACKGROUND_GAMMA_SCREEN, 0/*need_expand*/, - 0/*gamma: not used*/); - } - - else /* compose on row: implemented below. */ - { - do_local_compose = 1; - /* This leaves the alpha channel in the output, so it has to be - * removed by the code below. Set the encoding to the 'OPTIMIZE' - * one so the code only has to hack on the pixels that require - * composition. - */ - mode = PNG_ALPHA_OPTIMIZED; - } - } - - else /* output needs an alpha channel */ - { - /* This is tricky because it happens before the swap operation has - * been accomplished; however, the swap does *not* swap the added - * alpha channel (weird API), so it must be added in the correct - * place. - */ - png_uint_32 filler; /* opaque filler */ - int where; - - if (linear != 0) - filler = 65535; - - else - filler = 255; - -# ifdef PNG_FORMAT_AFIRST_SUPPORTED - if (format & PNG_FORMAT_FLAG_AFIRST) - { - where = PNG_FILLER_BEFORE; - change &= ~PNG_FORMAT_FLAG_AFIRST; - } - - else -# endif - where = PNG_FILLER_AFTER; - - png_set_add_alpha(png_ptr, filler, where); - } - - /* This stops the (irrelevant) call to swap_alpha below. */ - change &= ~PNG_FORMAT_FLAG_ALPHA; - } - - /* Now set the alpha mode correctly; this is always done, even if there is - * no alpha channel in either the input or the output because it correctly - * sets the output gamma. - */ - png_set_alpha_mode_fixed(png_ptr, mode, output_gamma); - -# ifdef PNG_FORMAT_BGR_SUPPORTED - if (change & PNG_FORMAT_FLAG_BGR) - { - /* Check only the output format; PNG is never BGR; don't do this if - * the output is gray, but fix up the 'format' value in that case. - */ - if (format & PNG_FORMAT_FLAG_COLOR) - png_set_bgr(png_ptr); - - else - format &= ~PNG_FORMAT_FLAG_BGR; - - change &= ~PNG_FORMAT_FLAG_BGR; - } -# endif - -# ifdef PNG_FORMAT_AFIRST_SUPPORTED - if (change & PNG_FORMAT_FLAG_AFIRST) - { - /* Only relevant if there is an alpha channel - it's particularly - * important to handle this correctly because do_local_compose may - * be set above and then libpng will keep the alpha channel for this - * code to remove. - */ - if (format & PNG_FORMAT_FLAG_ALPHA) - { - /* Disable this if doing a local background, - * TODO: remove this when local background is no longer required. - */ - if (do_local_background != 2) - png_set_swap_alpha(png_ptr); - } - - else - format &= ~PNG_FORMAT_FLAG_AFIRST; - - change &= ~PNG_FORMAT_FLAG_AFIRST; - } -# endif - - /* If the *output* is 16-bit then we need to check for a byte-swap on this - * architecture. - */ - if (linear != 0) - { - PNG_CONST png_uint_16 le = 0x0001; - - if (*(png_const_bytep)&le) - png_set_swap(png_ptr); - } - - /* If change is not now 0 some transformation is missing - error out. */ - if (change != 0) - png_error(png_ptr, "png_read_image: unsupported transformation"); - } - - PNG_SKIP_CHUNKS(png_ptr); - - /* Update the 'info' structure and make sure the result is as required; first - * make sure to turn on the interlace handling if it will be required - * (because it can't be turned on *after* the call to png_read_update_info!) - * - * TODO: remove the do_local_background fixup below. - */ - if (do_local_compose == 0 && do_local_background != 2) - passes = png_set_interlace_handling(png_ptr); - - png_read_update_info(png_ptr, info_ptr); - - { - png_uint_32 info_format = 0; - - if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_format |= PNG_FORMAT_FLAG_COLOR; - - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - { - /* do_local_compose removes this channel below. */ - if (do_local_compose == 0) - { - /* do_local_background does the same if required. */ - if (do_local_background != 2 || - (format & PNG_FORMAT_FLAG_ALPHA) != 0) - info_format |= PNG_FORMAT_FLAG_ALPHA; - } - } - - else if (do_local_compose != 0) /* internal error */ - png_error(png_ptr, "png_image_read: alpha channel lost"); - - if (info_ptr->bit_depth == 16) - info_format |= PNG_FORMAT_FLAG_LINEAR; - -# ifdef PNG_FORMAT_BGR_SUPPORTED - if (png_ptr->transformations & PNG_BGR) - info_format |= PNG_FORMAT_FLAG_BGR; -# endif - -# ifdef PNG_FORMAT_AFIRST_SUPPORTED - if (do_local_background == 2) - { - if (format & PNG_FORMAT_FLAG_AFIRST) - info_format |= PNG_FORMAT_FLAG_AFIRST; - } - - if ((png_ptr->transformations & PNG_SWAP_ALPHA) != 0 || - ((png_ptr->transformations & PNG_ADD_ALPHA) != 0 && - (png_ptr->flags & PNG_FLAG_FILLER_AFTER) == 0)) - { - if (do_local_background == 2) - png_error(png_ptr, "unexpected alpha swap transformation"); - - info_format |= PNG_FORMAT_FLAG_AFIRST; - } -# endif - - /* This is actually an internal error. */ - if (info_format != format) - png_error(png_ptr, "png_read_image: invalid transformations"); - } - - /* Now read the rows. If do_local_compose is set then it is necessary to use - * a local row buffer. The output will be GA, RGBA or BGRA and must be - * converted to G, RGB or BGR as appropriate. The 'local_row' member of the - * display acts as a flag. - */ - { - png_voidp first_row = display->buffer; - ptrdiff_t row_bytes = display->row_stride; - - if (linear != 0) - row_bytes *= 2; - - /* The following expression is designed to work correctly whether it gives - * a signed or an unsigned result. - */ - if (row_bytes < 0) - { - char *ptr = png_voidcast(char*, first_row); - ptr += (image->height-1) * (-row_bytes); - first_row = png_voidcast(png_voidp, ptr); - } - - display->first_row = first_row; - display->row_bytes = row_bytes; - } - - if (do_local_compose != 0) - { - int result; - png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); - - display->local_row = row; - result = png_safe_execute(image, png_image_read_composite, display); - display->local_row = NULL; - png_free(png_ptr, row); - - return result; - } - - else if (do_local_background == 2) - { - int result; - png_voidp row = png_malloc(png_ptr, png_get_rowbytes(png_ptr, info_ptr)); - - display->local_row = row; - result = png_safe_execute(image, png_image_read_background, display); - display->local_row = NULL; - png_free(png_ptr, row); - - return result; - } - - else - { - png_alloc_size_t row_bytes = display->row_bytes; - - while (--passes >= 0) - { - png_uint_32 y = image->height; - png_bytep row = png_voidcast(png_bytep, display->first_row); - - while (y-- > 0) - { - png_read_row(png_ptr, row, NULL); - row += row_bytes; - } - } - - return 1; - } -} - -int PNGAPI -png_image_finish_read(png_imagep image, png_const_colorp background, - void *buffer, png_int_32 row_stride, void *colormap) -{ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - png_uint_32 check; - - if (row_stride == 0) - row_stride = PNG_IMAGE_ROW_STRIDE(*image); - - if (row_stride < 0) - check = -row_stride; - - else - check = row_stride; - - if (image->opaque != NULL && buffer != NULL && - check >= PNG_IMAGE_ROW_STRIDE(*image)) - { - if ((image->format & PNG_FORMAT_FLAG_COLORMAP) == 0 || - (image->colormap_entries > 0 && colormap != NULL)) - { - int result; - png_image_read_control display; - - memset(&display, 0, (sizeof display)); - display.image = image; - display.buffer = buffer; - display.row_stride = row_stride; - display.colormap = colormap; - display.background = background; - display.local_row = NULL; - - /* Choose the correct 'end' routine; for the color-map case all the - * setup has already been done. - */ - if (image->format & PNG_FORMAT_FLAG_COLORMAP) - result = - png_safe_execute(image, png_image_read_colormap, &display) && - png_safe_execute(image, png_image_read_colormapped, &display); - - else - result = - png_safe_execute(image, png_image_read_direct, &display); - - png_image_free(image); - return result; - } - - else - return png_image_error(image, - "png_image_finish_read[color-map]: no color-map"); - } - - else - return png_image_error(image, - "png_image_finish_read: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_finish_read: damaged PNG_IMAGE_VERSION"); - - return 0; -} - -#endif /* PNG_SIMPLIFIED_READ_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrio.c b/png/pngrio.c deleted file mode 100755 index d75ac5b..0000000 --- a/png/pngrio.c +++ /dev/null @@ -1,120 +0,0 @@ - -/* pngrio.c - functions for data input - * - * Last changed in libpng 1.6.9 [February 6, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file provides a location for all input. Users who need - * special handling are expected to write a function that has the same - * arguments as this and performs a similar function, but that possibly - * has a different input method. Note that you shouldn't change this - * function, but rather write a replacement function and then make - * libpng use it at run time with png_set_read_fn(...). - */ - -#include "pngpriv.h" - -#ifdef PNG_READ_SUPPORTED - -/* Read the data from whatever input you are using. The default routine - * reads from a file pointer. Note that this routine sometimes gets called - * with very small lengths, so you should implement some kind of simple - * buffering if you are using unbuffered reads. This should never be asked - * to read more then 64K on a 16 bit machine. - */ -void /* PRIVATE */ -png_read_data(png_structrp png_ptr, png_bytep data, png_size_t length) -{ - png_debug1(4, "reading %d bytes", (int)length); - - if (png_ptr->read_data_fn != NULL) - (*(png_ptr->read_data_fn))(png_ptr, data, length); - - else - png_error(png_ptr, "Call to NULL read function"); -} - -#ifdef PNG_STDIO_SUPPORTED -/* This is the function that does the actual reading of data. If you are - * not reading from a standard C stream, you should create a replacement - * read_data function and use it at run time with png_set_read_fn(), rather - * than changing the library. - */ -void PNGCBAPI -png_default_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - - if (png_ptr == NULL) - return; - - /* fread() returns 0 on error, so it is OK to store this in a png_size_t - * instead of an int, which is what fread() actually returns. - */ - check = fread(data, 1, length, png_voidcast(png_FILE_p, png_ptr->io_ptr)); - - if (check != length) - png_error(png_ptr, "Read Error"); -} -#endif - -/* This function allows the application to supply a new input function - * for libpng if standard C streams aren't being used. - * - * This function takes as its arguments: - * - * png_ptr - pointer to a png input data structure - * - * io_ptr - pointer to user supplied structure containing info about - * the input functions. May be NULL. - * - * read_data_fn - pointer to a new input function that takes as its - * arguments a pointer to a png_struct, a pointer to - * a location where input data can be stored, and a 32-bit - * unsigned int that is the number of bytes to be read. - * To exit and output any fatal error messages the new write - * function should call png_error(png_ptr, "Error msg"). - * May be NULL, in which case libpng's default function will - * be used. - */ -void PNGAPI -png_set_read_fn(png_structrp png_ptr, png_voidp io_ptr, - png_rw_ptr read_data_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->io_ptr = io_ptr; - -#ifdef PNG_STDIO_SUPPORTED - if (read_data_fn != NULL) - png_ptr->read_data_fn = read_data_fn; - - else - png_ptr->read_data_fn = png_default_read_data; -#else - png_ptr->read_data_fn = read_data_fn; -#endif - -#ifdef PNG_WRITE_SUPPORTED - /* It is an error to write to a read device */ - if (png_ptr->write_data_fn != NULL) - { - png_ptr->write_data_fn = NULL; - png_warning(png_ptr, - "Can't set both read_data_fn and write_data_fn in the" - " same structure"); - } -#endif - -#ifdef PNG_WRITE_FLUSH_SUPPORTED - png_ptr->output_flush_fn = NULL; -#endif -} -#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrtran.c b/png/pngrtran.c deleted file mode 100755 index 5b89423..0000000 --- a/png/pngrtran.c +++ /dev/null @@ -1,4991 +0,0 @@ - -/* pngrtran.c - transforms the data in a row for PNG readers - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file contains functions optionally called by an application - * in order to tell libpng how to handle data when reading a PNG. - * Transformations that are used in both reading and writing are - * in pngtrans.c. - */ - -#include "pngpriv.h" - -#ifdef PNG_READ_SUPPORTED - -/* Set the action on getting a CRC error for an ancillary or critical chunk. */ -void PNGAPI -png_set_crc_action(png_structrp png_ptr, int crit_action, int ancil_action) -{ - png_debug(1, "in png_set_crc_action"); - - if (png_ptr == NULL) - return; - - /* Tell libpng how we react to CRC errors in critical chunks */ - switch (crit_action) - { - case PNG_CRC_NO_CHANGE: /* Leave setting as is */ - break; - - case PNG_CRC_WARN_USE: /* Warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE; - break; - - case PNG_CRC_QUIET_USE: /* Quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - png_ptr->flags |= PNG_FLAG_CRC_CRITICAL_USE | - PNG_FLAG_CRC_CRITICAL_IGNORE; - break; - - case PNG_CRC_WARN_DISCARD: /* Not a valid action for critical data */ - png_warning(png_ptr, - "Can't discard critical data on CRC error"); - case PNG_CRC_ERROR_QUIT: /* Error/quit */ - - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_CRITICAL_MASK; - break; - } - - /* Tell libpng how we react to CRC errors in ancillary chunks */ - switch (ancil_action) - { - case PNG_CRC_NO_CHANGE: /* Leave setting as is */ - break; - - case PNG_CRC_WARN_USE: /* Warn/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE; - break; - - case PNG_CRC_QUIET_USE: /* Quiet/use data */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_USE | - PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - - case PNG_CRC_ERROR_QUIT: /* Error/quit */ - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - png_ptr->flags |= PNG_FLAG_CRC_ANCILLARY_NOWARN; - break; - - case PNG_CRC_WARN_DISCARD: /* Warn/discard data */ - - case PNG_CRC_DEFAULT: - default: - png_ptr->flags &= ~PNG_FLAG_CRC_ANCILLARY_MASK; - break; - } -} - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -/* Is it OK to set a transformation now? Only if png_start_read_image or - * png_read_update_info have not been called. It is not necessary for the IHDR - * to have been read in all cases, the parameter allows for this check too. - */ -static int -png_rtran_ok(png_structrp png_ptr, int need_IHDR) -{ - if (png_ptr != NULL) - { - if (png_ptr->flags & PNG_FLAG_ROW_INIT) - png_app_error(png_ptr, - "invalid after png_start_read_image or png_read_update_info"); - - else if (need_IHDR && (png_ptr->mode & PNG_HAVE_IHDR) == 0) - png_app_error(png_ptr, "invalid before the PNG header has been read"); - - else - { - /* Turn on failure to initialize correctly for all transforms. */ - png_ptr->flags |= PNG_FLAG_DETECT_UNINITIALIZED; - - return 1; /* Ok */ - } - } - - return 0; /* no png_error possible! */ -} -#endif - -#ifdef PNG_READ_BACKGROUND_SUPPORTED -/* Handle alpha and tRNS via a background color */ -void PNGFAPI -png_set_background_fixed(png_structrp png_ptr, - png_const_color_16p background_color, int background_gamma_code, - int need_expand, png_fixed_point background_gamma) -{ - png_debug(1, "in png_set_background_fixed"); - - if (!png_rtran_ok(png_ptr, 0) || background_color == NULL) - return; - - if (background_gamma_code == PNG_BACKGROUND_GAMMA_UNKNOWN) - { - png_warning(png_ptr, "Application must supply a known background gamma"); - return; - } - - png_ptr->transformations |= PNG_COMPOSE | PNG_STRIP_ALPHA; - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - - png_ptr->background = *background_color; - png_ptr->background_gamma = background_gamma; - png_ptr->background_gamma_type = (png_byte)(background_gamma_code); - if (need_expand != 0) - png_ptr->transformations |= PNG_BACKGROUND_EXPAND; - else - png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND; -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_background(png_structrp png_ptr, - png_const_color_16p background_color, int background_gamma_code, - int need_expand, double background_gamma) -{ - png_set_background_fixed(png_ptr, background_color, background_gamma_code, - need_expand, png_fixed(png_ptr, background_gamma, "png_set_background")); -} -# endif /* FLOATING_POINT */ -#endif /* READ_BACKGROUND */ - -/* Scale 16-bit depth files to 8-bit depth. If both of these are set then the - * one that pngrtran does first (scale) happens. This is necessary to allow the - * TRANSFORM and API behavior to be somewhat consistent, and it's simpler. - */ -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED -void PNGAPI -png_set_scale_16(png_structrp png_ptr) -{ - png_debug(1, "in png_set_scale_16"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= PNG_SCALE_16_TO_8; -} -#endif - -#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED -/* Chop 16-bit depth files to 8-bit depth */ -void PNGAPI -png_set_strip_16(png_structrp png_ptr) -{ - png_debug(1, "in png_set_strip_16"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= PNG_16_TO_8; -} -#endif - -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED -void PNGAPI -png_set_strip_alpha(png_structrp png_ptr) -{ - png_debug(1, "in png_set_strip_alpha"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= PNG_STRIP_ALPHA; -} -#endif - -#if defined(PNG_READ_ALPHA_MODE_SUPPORTED) || defined(PNG_READ_GAMMA_SUPPORTED) -static png_fixed_point -translate_gamma_flags(png_structrp png_ptr, png_fixed_point output_gamma, - int is_screen) -{ - /* Check for flag values. The main reason for having the old Mac value as a - * flag is that it is pretty near impossible to work out what the correct - * value is from Apple documentation - a working Mac system is needed to - * discover the value! - */ - if (output_gamma == PNG_DEFAULT_sRGB || - output_gamma == PNG_FP_1 / PNG_DEFAULT_sRGB) - { - /* If there is no sRGB support this just sets the gamma to the standard - * sRGB value. (This is a side effect of using this function!) - */ -# ifdef PNG_READ_sRGB_SUPPORTED - png_ptr->flags |= PNG_FLAG_ASSUME_sRGB; -# else - PNG_UNUSED(png_ptr) -# endif - if (is_screen != 0) - output_gamma = PNG_GAMMA_sRGB; - else - output_gamma = PNG_GAMMA_sRGB_INVERSE; - } - - else if (output_gamma == PNG_GAMMA_MAC_18 || - output_gamma == PNG_FP_1 / PNG_GAMMA_MAC_18) - { - if (is_screen != 0) - output_gamma = PNG_GAMMA_MAC_OLD; - else - output_gamma = PNG_GAMMA_MAC_INVERSE; - } - - return output_gamma; -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -static png_fixed_point -convert_gamma_value(png_structrp png_ptr, double output_gamma) -{ - /* The following silently ignores cases where fixed point (times 100,000) - * gamma values are passed to the floating point API. This is safe and it - * means the fixed point constants work just fine with the floating point - * API. The alternative would just lead to undetected errors and spurious - * bug reports. Negative values fail inside the _fixed API unless they - * correspond to the flag values. - */ - if (output_gamma > 0 && output_gamma < 128) - output_gamma *= PNG_FP_1; - - /* This preserves -1 and -2 exactly: */ - output_gamma = floor(output_gamma + .5); - - if (output_gamma > PNG_FP_MAX || output_gamma < PNG_FP_MIN) - png_fixed_error(png_ptr, "gamma value"); - - return (png_fixed_point)output_gamma; -} -# endif -#endif /* READ_ALPHA_MODE || READ_GAMMA */ - -#ifdef PNG_READ_ALPHA_MODE_SUPPORTED -void PNGFAPI -png_set_alpha_mode_fixed(png_structrp png_ptr, int mode, - png_fixed_point output_gamma) -{ - int compose = 0; - png_fixed_point file_gamma; - - png_debug(1, "in png_set_alpha_mode"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - output_gamma = translate_gamma_flags(png_ptr, output_gamma, 1/*screen*/); - - /* Validate the value to ensure it is in a reasonable range. The value - * is expected to be 1 or greater, but this range test allows for some - * viewing correction values. The intent is to weed out users of this API - * who use the inverse of the gamma value accidentally! Since some of these - * values are reasonable this may have to be changed. - */ - if (output_gamma < 70000 || output_gamma > 300000) - png_error(png_ptr, "output gamma out of expected range"); - - /* The default file gamma is the inverse of the output gamma; the output - * gamma may be changed below so get the file value first: - */ - file_gamma = png_reciprocal(output_gamma); - - /* There are really 8 possibilities here, composed of any combination - * of: - * - * premultiply the color channels - * do not encode non-opaque pixels - * encode the alpha as well as the color channels - * - * The differences disappear if the input/output ('screen') gamma is 1.0, - * because then the encoding is a no-op and there is only the choice of - * premultiplying the color channels or not. - * - * png_set_alpha_mode and png_set_background interact because both use - * png_compose to do the work. Calling both is only useful when - * png_set_alpha_mode is used to set the default mode - PNG_ALPHA_PNG - along - * with a default gamma value. Otherwise PNG_COMPOSE must not be set. - */ - switch (mode) - { - case PNG_ALPHA_PNG: /* default: png standard */ - /* No compose, but it may be set by png_set_background! */ - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - break; - - case PNG_ALPHA_ASSOCIATED: /* color channels premultiplied */ - compose = 1; - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - /* The output is linear: */ - output_gamma = PNG_FP_1; - break; - - case PNG_ALPHA_OPTIMIZED: /* associated, non-opaque pixels linear */ - compose = 1; - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags |= PNG_FLAG_OPTIMIZE_ALPHA; - /* output_gamma records the encoding of opaque pixels! */ - break; - - case PNG_ALPHA_BROKEN: /* associated, non-linear, alpha encoded */ - compose = 1; - png_ptr->transformations |= PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - break; - - default: - png_error(png_ptr, "invalid alpha mode"); - } - - /* Only set the default gamma if the file gamma has not been set (this has - * the side effect that the gamma in a second call to png_set_alpha_mode will - * be ignored.) - */ - if (png_ptr->colorspace.gamma == 0) - { - png_ptr->colorspace.gamma = file_gamma; - png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; - } - - /* But always set the output gamma: */ - png_ptr->screen_gamma = output_gamma; - - /* Finally, if pre-multiplying, set the background fields to achieve the - * desired result. - */ - if (compose != 0) - { - /* And obtain alpha pre-multiplication by composing on black: */ - memset(&png_ptr->background, 0, (sizeof png_ptr->background)); - png_ptr->background_gamma = png_ptr->colorspace.gamma; /* just in case */ - png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_FILE; - png_ptr->transformations &= ~PNG_BACKGROUND_EXPAND; - - if (png_ptr->transformations & PNG_COMPOSE) - png_error(png_ptr, - "conflicting calls to set alpha mode and background"); - - png_ptr->transformations |= PNG_COMPOSE; - } -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_alpha_mode(png_structrp png_ptr, int mode, double output_gamma) -{ - png_set_alpha_mode_fixed(png_ptr, mode, convert_gamma_value(png_ptr, - output_gamma)); -} -# endif -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED -/* Dither file to 8-bit. Supply a palette, the current number - * of elements in the palette, the maximum number of elements - * allowed, and a histogram if possible. If the current number - * of colors is greater then the maximum number, the palette will be - * modified to fit in the maximum number. "full_quantize" indicates - * whether we need a quantizing cube set up for RGB images, or if we - * simply are reducing the number of colors in a paletted image. - */ - -typedef struct png_dsort_struct -{ - struct png_dsort_struct * next; - png_byte left; - png_byte right; -} png_dsort; -typedef png_dsort * png_dsortp; -typedef png_dsort * * png_dsortpp; - -void PNGAPI -png_set_quantize(png_structrp png_ptr, png_colorp palette, - int num_palette, int maximum_colors, png_const_uint_16p histogram, - int full_quantize) -{ - png_debug(1, "in png_set_quantize"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= PNG_QUANTIZE; - - if (full_quantize == 0) - { - int i; - - png_ptr->quantize_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * (sizeof (png_byte)))); - for (i = 0; i < num_palette; i++) - png_ptr->quantize_index[i] = (png_byte)i; - } - - if (num_palette > maximum_colors) - { - if (histogram != NULL) - { - /* This is easy enough, just throw out the least used colors. - * Perhaps not the best solution, but good enough. - */ - - int i; - - /* Initialize an array to sort colors */ - png_ptr->quantize_sort = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * (sizeof (png_byte)))); - - /* Initialize the quantize_sort array */ - for (i = 0; i < num_palette; i++) - png_ptr->quantize_sort[i] = (png_byte)i; - - /* Find the least used palette entries by starting a - * bubble sort, and running it until we have sorted - * out enough colors. Note that we don't care about - * sorting all the colors, just finding which are - * least used. - */ - - for (i = num_palette - 1; i >= maximum_colors; i--) - { - int done; /* To stop early if the list is pre-sorted */ - int j; - - done = 1; - for (j = 0; j < i; j++) - { - if (histogram[png_ptr->quantize_sort[j]] - < histogram[png_ptr->quantize_sort[j + 1]]) - { - png_byte t; - - t = png_ptr->quantize_sort[j]; - png_ptr->quantize_sort[j] = png_ptr->quantize_sort[j + 1]; - png_ptr->quantize_sort[j + 1] = t; - done = 0; - } - } - - if (done != 0) - break; - } - - /* Swap the palette around, and set up a table, if necessary */ - if (full_quantize != 0) - { - int j = num_palette; - - /* Put all the useful colors within the max, but don't - * move the others. - */ - for (i = 0; i < maximum_colors; i++) - { - if ((int)png_ptr->quantize_sort[i] >= maximum_colors) - { - do - j--; - while ((int)png_ptr->quantize_sort[j] >= maximum_colors); - - palette[i] = palette[j]; - } - } - } - else - { - int j = num_palette; - - /* Move all the used colors inside the max limit, and - * develop a translation table. - */ - for (i = 0; i < maximum_colors; i++) - { - /* Only move the colors we need to */ - if ((int)png_ptr->quantize_sort[i] >= maximum_colors) - { - png_color tmp_color; - - do - j--; - while ((int)png_ptr->quantize_sort[j] >= maximum_colors); - - tmp_color = palette[j]; - palette[j] = palette[i]; - palette[i] = tmp_color; - /* Indicate where the color went */ - png_ptr->quantize_index[j] = (png_byte)i; - png_ptr->quantize_index[i] = (png_byte)j; - } - } - - /* Find closest color for those colors we are not using */ - for (i = 0; i < num_palette; i++) - { - if ((int)png_ptr->quantize_index[i] >= maximum_colors) - { - int min_d, k, min_k, d_index; - - /* Find the closest color to one we threw out */ - d_index = png_ptr->quantize_index[i]; - min_d = PNG_COLOR_DIST(palette[d_index], palette[0]); - for (k = 1, min_k = 0; k < maximum_colors; k++) - { - int d; - - d = PNG_COLOR_DIST(palette[d_index], palette[k]); - - if (d < min_d) - { - min_d = d; - min_k = k; - } - } - /* Point to closest color */ - png_ptr->quantize_index[i] = (png_byte)min_k; - } - } - } - png_free(png_ptr, png_ptr->quantize_sort); - png_ptr->quantize_sort = NULL; - } - else - { - /* This is much harder to do simply (and quickly). Perhaps - * we need to go through a median cut routine, but those - * don't always behave themselves with only a few colors - * as input. So we will just find the closest two colors, - * and throw out one of them (chosen somewhat randomly). - * [We don't understand this at all, so if someone wants to - * work on improving it, be our guest - AED, GRP] - */ - int i; - int max_d; - int num_new_palette; - png_dsortp t; - png_dsortpp hash; - - t = NULL; - - /* Initialize palette index arrays */ - png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * (sizeof (png_byte)))); - png_ptr->palette_to_index = (png_bytep)png_malloc(png_ptr, - (png_uint_32)(num_palette * (sizeof (png_byte)))); - - /* Initialize the sort array */ - for (i = 0; i < num_palette; i++) - { - png_ptr->index_to_palette[i] = (png_byte)i; - png_ptr->palette_to_index[i] = (png_byte)i; - } - - hash = (png_dsortpp)png_calloc(png_ptr, (png_uint_32)(769 * - (sizeof (png_dsortp)))); - - num_new_palette = num_palette; - - /* Initial wild guess at how far apart the farthest pixel - * pair we will be eliminating will be. Larger - * numbers mean more areas will be allocated, Smaller - * numbers run the risk of not saving enough data, and - * having to do this all over again. - * - * I have not done extensive checking on this number. - */ - max_d = 96; - - while (num_new_palette > maximum_colors) - { - for (i = 0; i < num_new_palette - 1; i++) - { - int j; - - for (j = i + 1; j < num_new_palette; j++) - { - int d; - - d = PNG_COLOR_DIST(palette[i], palette[j]); - - if (d <= max_d) - { - - t = (png_dsortp)png_malloc_warn(png_ptr, - (png_uint_32)(sizeof (png_dsort))); - - if (t == NULL) - break; - - t->next = hash[d]; - t->left = (png_byte)i; - t->right = (png_byte)j; - hash[d] = t; - } - } - if (t == NULL) - break; - } - - if (t != NULL) - for (i = 0; i <= max_d; i++) - { - if (hash[i] != NULL) - { - png_dsortp p; - - for (p = hash[i]; p; p = p->next) - { - if ((int)png_ptr->index_to_palette[p->left] - < num_new_palette && - (int)png_ptr->index_to_palette[p->right] - < num_new_palette) - { - int j, next_j; - - if (num_new_palette & 0x01) - { - j = p->left; - next_j = p->right; - } - else - { - j = p->right; - next_j = p->left; - } - - num_new_palette--; - palette[png_ptr->index_to_palette[j]] - = palette[num_new_palette]; - if (full_quantize == 0) - { - int k; - - for (k = 0; k < num_palette; k++) - { - if (png_ptr->quantize_index[k] == - png_ptr->index_to_palette[j]) - png_ptr->quantize_index[k] = - png_ptr->index_to_palette[next_j]; - - if ((int)png_ptr->quantize_index[k] == - num_new_palette) - png_ptr->quantize_index[k] = - png_ptr->index_to_palette[j]; - } - } - - png_ptr->index_to_palette[png_ptr->palette_to_index - [num_new_palette]] = png_ptr->index_to_palette[j]; - - png_ptr->palette_to_index[png_ptr->index_to_palette[j]] - = png_ptr->palette_to_index[num_new_palette]; - - png_ptr->index_to_palette[j] = - (png_byte)num_new_palette; - - png_ptr->palette_to_index[num_new_palette] = - (png_byte)j; - } - if (num_new_palette <= maximum_colors) - break; - } - if (num_new_palette <= maximum_colors) - break; - } - } - - for (i = 0; i < 769; i++) - { - if (hash[i] != NULL) - { - png_dsortp p = hash[i]; - while (p) - { - t = p->next; - png_free(png_ptr, p); - p = t; - } - } - hash[i] = 0; - } - max_d += 96; - } - png_free(png_ptr, hash); - png_free(png_ptr, png_ptr->palette_to_index); - png_free(png_ptr, png_ptr->index_to_palette); - png_ptr->palette_to_index = NULL; - png_ptr->index_to_palette = NULL; - } - num_palette = maximum_colors; - } - if (png_ptr->palette == NULL) - { - png_ptr->palette = palette; - } - png_ptr->num_palette = (png_uint_16)num_palette; - - if (full_quantize != 0) - { - int i; - png_bytep distance; - int total_bits = PNG_QUANTIZE_RED_BITS + PNG_QUANTIZE_GREEN_BITS + - PNG_QUANTIZE_BLUE_BITS; - int num_red = (1 << PNG_QUANTIZE_RED_BITS); - int num_green = (1 << PNG_QUANTIZE_GREEN_BITS); - int num_blue = (1 << PNG_QUANTIZE_BLUE_BITS); - png_size_t num_entries = ((png_size_t)1 << total_bits); - - png_ptr->palette_lookup = (png_bytep)png_calloc(png_ptr, - (png_uint_32)(num_entries * (sizeof (png_byte)))); - - distance = (png_bytep)png_malloc(png_ptr, (png_uint_32)(num_entries * - (sizeof (png_byte)))); - - memset(distance, 0xff, num_entries * (sizeof (png_byte))); - - for (i = 0; i < num_palette; i++) - { - int ir, ig, ib; - int r = (palette[i].red >> (8 - PNG_QUANTIZE_RED_BITS)); - int g = (palette[i].green >> (8 - PNG_QUANTIZE_GREEN_BITS)); - int b = (palette[i].blue >> (8 - PNG_QUANTIZE_BLUE_BITS)); - - for (ir = 0; ir < num_red; ir++) - { - /* int dr = abs(ir - r); */ - int dr = ((ir > r) ? ir - r : r - ir); - int index_r = (ir << (PNG_QUANTIZE_BLUE_BITS + - PNG_QUANTIZE_GREEN_BITS)); - - for (ig = 0; ig < num_green; ig++) - { - /* int dg = abs(ig - g); */ - int dg = ((ig > g) ? ig - g : g - ig); - int dt = dr + dg; - int dm = ((dr > dg) ? dr : dg); - int index_g = index_r | (ig << PNG_QUANTIZE_BLUE_BITS); - - for (ib = 0; ib < num_blue; ib++) - { - int d_index = index_g | ib; - /* int db = abs(ib - b); */ - int db = ((ib > b) ? ib - b : b - ib); - int dmax = ((dm > db) ? dm : db); - int d = dmax + dt + db; - - if (d < (int)distance[d_index]) - { - distance[d_index] = (png_byte)d; - png_ptr->palette_lookup[d_index] = (png_byte)i; - } - } - } - } - } - - png_free(png_ptr, distance); - } -} -#endif /* PNG_READ_QUANTIZE_SUPPORTED */ - -#ifdef PNG_READ_GAMMA_SUPPORTED -void PNGFAPI -png_set_gamma_fixed(png_structrp png_ptr, png_fixed_point scrn_gamma, - png_fixed_point file_gamma) -{ - png_debug(1, "in png_set_gamma_fixed"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - /* New in libpng-1.5.4 - reserve particular negative values as flags. */ - scrn_gamma = translate_gamma_flags(png_ptr, scrn_gamma, 1/*screen*/); - file_gamma = translate_gamma_flags(png_ptr, file_gamma, 0/*file*/); - - /* Checking the gamma values for being >0 was added in 1.5.4 along with the - * premultiplied alpha support; this actually hides an undocumented feature - * of the previous implementation which allowed gamma processing to be - * disabled in background handling. There is no evidence (so far) that this - * was being used; however, png_set_background itself accepted and must still - * accept '0' for the gamma value it takes, because it isn't always used. - * - * Since this is an API change (albeit a very minor one that removes an - * undocumented API feature) the following checks were only enabled in - * libpng-1.6.0. - */ - if (file_gamma <= 0) - png_error(png_ptr, "invalid file gamma in png_set_gamma"); - - if (scrn_gamma <= 0) - png_error(png_ptr, "invalid screen gamma in png_set_gamma"); - - /* Set the gamma values unconditionally - this overrides the value in the PNG - * file if a gAMA chunk was present. png_set_alpha_mode provides a - * different, easier, way to default the file gamma. - */ - png_ptr->colorspace.gamma = file_gamma; - png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; - png_ptr->screen_gamma = scrn_gamma; -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_gamma(png_structrp png_ptr, double scrn_gamma, double file_gamma) -{ - png_set_gamma_fixed(png_ptr, convert_gamma_value(png_ptr, scrn_gamma), - convert_gamma_value(png_ptr, file_gamma)); -} -# endif /* FLOATING_POINT_SUPPORTED */ -#endif /* READ_GAMMA */ - -#ifdef PNG_READ_EXPAND_SUPPORTED -/* Expand paletted images to RGB, expand grayscale images of - * less than 8-bit depth to 8-bit depth, and expand tRNS chunks - * to alpha channels. - */ -void PNGAPI -png_set_expand(png_structrp png_ptr) -{ - png_debug(1, "in png_set_expand"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -} - -/* GRR 19990627: the following three functions currently are identical - * to png_set_expand(). However, it is entirely reasonable that someone - * might wish to expand an indexed image to RGB but *not* expand a single, - * fully transparent palette entry to a full alpha channel--perhaps instead - * convert tRNS to the grayscale/RGB format (16-bit RGB value), or replace - * the transparent color with a particular RGB value, or drop tRNS entirely. - * IOW, a future version of the library may make the transformations flag - * a bit more fine-grained, with separate bits for each of these three - * functions. - * - * More to the point, these functions make it obvious what libpng will be - * doing, whereas "expand" can (and does) mean any number of things. - * - * GRP 20060307: In libpng-1.2.9, png_set_gray_1_2_4_to_8() was modified - * to expand only the sample depth but not to expand the tRNS to alpha - * and its name was changed to png_set_expand_gray_1_2_4_to_8(). - */ - -/* Expand paletted images to RGB. */ -void PNGAPI -png_set_palette_to_rgb(png_structrp png_ptr) -{ - png_debug(1, "in png_set_palette_to_rgb"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -} - -/* Expand grayscale images of less than 8-bit depth to 8 bits. */ -void PNGAPI -png_set_expand_gray_1_2_4_to_8(png_structrp png_ptr) -{ - png_debug(1, "in png_set_expand_gray_1_2_4_to_8"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= PNG_EXPAND; -} - -/* Expand tRNS chunks to alpha channels. */ -void PNGAPI -png_set_tRNS_to_alpha(png_structrp png_ptr) -{ - png_debug(1, "in png_set_tRNS_to_alpha"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= (PNG_EXPAND | PNG_EXPAND_tRNS); -} -#endif /* defined(PNG_READ_EXPAND_SUPPORTED) */ - -#ifdef PNG_READ_EXPAND_16_SUPPORTED -/* Expand to 16-bit channels, expand the tRNS chunk too (because otherwise - * it may not work correctly.) - */ -void PNGAPI -png_set_expand_16(png_structrp png_ptr) -{ - png_debug(1, "in png_set_expand_16"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - png_ptr->transformations |= (PNG_EXPAND_16 | PNG_EXPAND | PNG_EXPAND_tRNS); -} -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED -void PNGAPI -png_set_gray_to_rgb(png_structrp png_ptr) -{ - png_debug(1, "in png_set_gray_to_rgb"); - - if (!png_rtran_ok(png_ptr, 0)) - return; - - /* Because rgb must be 8 bits or more: */ - png_set_expand_gray_1_2_4_to_8(png_ptr); - png_ptr->transformations |= PNG_GRAY_TO_RGB; -} -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -void PNGFAPI -png_set_rgb_to_gray_fixed(png_structrp png_ptr, int error_action, - png_fixed_point red, png_fixed_point green) -{ - png_debug(1, "in png_set_rgb_to_gray"); - - /* Need the IHDR here because of the check on color_type below. */ - /* TODO: fix this */ - if (!png_rtran_ok(png_ptr, 1)) - return; - - switch(error_action) - { - case PNG_ERROR_ACTION_NONE: - png_ptr->transformations |= PNG_RGB_TO_GRAY; - break; - - case PNG_ERROR_ACTION_WARN: - png_ptr->transformations |= PNG_RGB_TO_GRAY_WARN; - break; - - case PNG_ERROR_ACTION_ERROR: - png_ptr->transformations |= PNG_RGB_TO_GRAY_ERR; - break; - - default: - png_error(png_ptr, "invalid error action to rgb_to_gray"); - break; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#ifdef PNG_READ_EXPAND_SUPPORTED - png_ptr->transformations |= PNG_EXPAND; -#else - { - /* Make this an error in 1.6 because otherwise the application may assume - * that it just worked and get a memory overwrite. - */ - png_error(png_ptr, - "Cannot do RGB_TO_GRAY without EXPAND_SUPPORTED"); - - /* png_ptr->transformations &= ~PNG_RGB_TO_GRAY; */ - } -#endif - { - if (red >= 0 && green >= 0 && red + green <= PNG_FP_1) - { - png_uint_16 red_int, green_int; - - /* NOTE: this calculation does not round, but this behavior is retained - * for consistency, the inaccuracy is very small. The code here always - * overwrites the coefficients, regardless of whether they have been - * defaulted or set already. - */ - red_int = (png_uint_16)(((png_uint_32)red*32768)/100000); - green_int = (png_uint_16)(((png_uint_32)green*32768)/100000); - - png_ptr->rgb_to_gray_red_coeff = red_int; - png_ptr->rgb_to_gray_green_coeff = green_int; - png_ptr->rgb_to_gray_coefficients_set = 1; - } - - else - { - if (red >= 0 && green >= 0) - png_app_warning(png_ptr, - "ignoring out of range rgb_to_gray coefficients"); - - /* Use the defaults, from the cHRM chunk if set, else the historical - * values which are close to the sRGB/HDTV/ITU-Rec 709 values. See - * png_do_rgb_to_gray for more discussion of the values. In this case - * the coefficients are not marked as 'set' and are not overwritten if - * something has already provided a default. - */ - if (png_ptr->rgb_to_gray_red_coeff == 0 && - png_ptr->rgb_to_gray_green_coeff == 0) - { - png_ptr->rgb_to_gray_red_coeff = 6968; - png_ptr->rgb_to_gray_green_coeff = 23434; - /* png_ptr->rgb_to_gray_blue_coeff = 2366; */ - } - } - } -} - -#ifdef PNG_FLOATING_POINT_SUPPORTED -/* Convert a RGB image to a grayscale of the same width. This allows us, - * for example, to convert a 24 bpp RGB image into an 8 bpp grayscale image. - */ - -void PNGAPI -png_set_rgb_to_gray(png_structrp png_ptr, int error_action, double red, - double green) -{ - png_set_rgb_to_gray_fixed(png_ptr, error_action, - png_fixed(png_ptr, red, "rgb to gray red coefficient"), - png_fixed(png_ptr, green, "rgb to gray green coefficient")); -} -#endif /* FLOATING POINT */ - -#endif /* RGB_TO_GRAY */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -void PNGAPI -png_set_read_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr - read_user_transform_fn) -{ - png_debug(1, "in png_set_read_user_transform_fn"); - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->read_user_transform_fn = read_user_transform_fn; -#endif -} -#endif - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED -#ifdef PNG_READ_GAMMA_SUPPORTED -/* In the case of gamma transformations only do transformations on images where - * the [file] gamma and screen_gamma are not close reciprocals, otherwise it - * slows things down slightly, and also needlessly introduces small errors. - */ -static int /* PRIVATE */ -png_gamma_threshold(png_fixed_point screen_gamma, png_fixed_point file_gamma) -{ - /* PNG_GAMMA_THRESHOLD is the threshold for performing gamma - * correction as a difference of the overall transform from 1.0 - * - * We want to compare the threshold with s*f - 1, if we get - * overflow here it is because of wacky gamma values so we - * turn on processing anyway. - */ - png_fixed_point gtest; - return !png_muldiv(>est, screen_gamma, file_gamma, PNG_FP_1) || - png_gamma_significant(gtest); -} -#endif - -/* Initialize everything needed for the read. This includes modifying - * the palette. - */ - -/*For the moment 'png_init_palette_transformations' and - * 'png_init_rgb_transformations' only do some flag canceling optimizations. - * The intent is that these two routines should have palette or rgb operations - * extracted from 'png_init_read_transformations'. - */ -static void /* PRIVATE */ -png_init_palette_transformations(png_structrp png_ptr) -{ - /* Called to handle the (input) palette case. In png_do_read_transformations - * the first step is to expand the palette if requested, so this code must - * take care to only make changes that are invariant with respect to the - * palette expansion, or only do them if there is no expansion. - * - * STRIP_ALPHA has already been handled in the caller (by setting num_trans - * to 0.) - */ - int input_has_alpha = 0; - int input_has_transparency = 0; - - if (png_ptr->num_trans > 0) - { - int i; - - /* Ignore if all the entries are opaque (unlikely!) */ - for (i=0; inum_trans; ++i) - { - if (png_ptr->trans_alpha[i] == 255) - continue; - else if (png_ptr->trans_alpha[i] == 0) - input_has_transparency = 1; - else - { - input_has_transparency = 1; - input_has_alpha = 1; - break; - } - } - } - - /* If no alpha we can optimize. */ - if (input_has_alpha == 0) - { - /* Any alpha means background and associative alpha processing is - * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA - * and ENCODE_ALPHA are irrelevant. - */ - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - - if (input_has_transparency == 0) - png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND); - } - -#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) - /* png_set_background handling - deals with the complexity of whether the - * background color is in the file format or the screen format in the case - * where an 'expand' will happen. - */ - - /* The following code cannot be entered in the alpha pre-multiplication case - * because PNG_BACKGROUND_EXPAND is cancelled below. - */ - if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - (png_ptr->transformations & PNG_EXPAND)) - { - { - png_ptr->background.red = - png_ptr->palette[png_ptr->background.index].red; - png_ptr->background.green = - png_ptr->palette[png_ptr->background.index].green; - png_ptr->background.blue = - png_ptr->palette[png_ptr->background.index].blue; - -#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_INVERT_ALPHA) - { - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) - { - /* Invert the alpha channel (in tRNS) unless the pixels are - * going to be expanded, in which case leave it for later - */ - int i, istop = png_ptr->num_trans; - - for (i=0; itrans_alpha[i] = (png_byte)(255 - - png_ptr->trans_alpha[i]); - } - } -#endif /* PNG_READ_INVERT_ALPHA_SUPPORTED */ - } - } /* background expand and (therefore) no alpha association. */ -#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ -} - -static void /* PRIVATE */ -png_init_rgb_transformations(png_structrp png_ptr) -{ - /* Added to libpng-1.5.4: check the color type to determine whether there - * is any alpha or transparency in the image and simply cancel the - * background and alpha mode stuff if there isn't. - */ - int input_has_alpha = (png_ptr->color_type & PNG_COLOR_MASK_ALPHA) != 0; - int input_has_transparency = png_ptr->num_trans > 0; - - /* If no alpha we can optimize. */ - if (input_has_alpha == 0) - { - /* Any alpha means background and associative alpha processing is - * required, however if the alpha is 0 or 1 throughout OPTIMIZE_ALPHA - * and ENCODE_ALPHA are irrelevant. - */ -# ifdef PNG_READ_ALPHA_MODE_SUPPORTED - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; -# endif - - if (input_has_transparency == 0) - png_ptr->transformations &= ~(PNG_COMPOSE | PNG_BACKGROUND_EXPAND); - } - -#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) - /* png_set_background handling - deals with the complexity of whether the - * background color is in the file format or the screen format in the case - * where an 'expand' will happen. - */ - - /* The following code cannot be entered in the alpha pre-multiplication case - * because PNG_BACKGROUND_EXPAND is cancelled below. - */ - if ((png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - (png_ptr->transformations & PNG_EXPAND) && - !(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) - /* i.e., GRAY or GRAY_ALPHA */ - { - { - /* Expand background and tRNS chunks */ - int gray = png_ptr->background.gray; - int trans_gray = png_ptr->trans_color.gray; - - switch (png_ptr->bit_depth) - { - case 1: - gray *= 0xff; - trans_gray *= 0xff; - break; - - case 2: - gray *= 0x55; - trans_gray *= 0x55; - break; - - case 4: - gray *= 0x11; - trans_gray *= 0x11; - break; - - default: - - case 8: - /* FALL THROUGH (Already 8 bits) */ - - case 16: - /* Already a full 16 bits */ - break; - } - - png_ptr->background.red = png_ptr->background.green = - png_ptr->background.blue = (png_uint_16)gray; - - if (!(png_ptr->transformations & PNG_EXPAND_tRNS)) - { - png_ptr->trans_color.red = png_ptr->trans_color.green = - png_ptr->trans_color.blue = (png_uint_16)trans_gray; - } - } - } /* background expand and (therefore) no alpha association. */ -#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ -} - -void /* PRIVATE */ -png_init_read_transformations(png_structrp png_ptr) -{ - png_debug(1, "in png_init_read_transformations"); - - /* This internal function is called from png_read_start_row in pngrutil.c - * and it is called before the 'rowbytes' calculation is done, so the code - * in here can change or update the transformations flags. - * - * First do updates that do not depend on the details of the PNG image data - * being processed. - */ - -#ifdef PNG_READ_GAMMA_SUPPORTED - /* Prior to 1.5.4 these tests were performed from png_set_gamma, 1.5.4 adds - * png_set_alpha_mode and this is another source for a default file gamma so - * the test needs to be performed later - here. In addition prior to 1.5.4 - * the tests were repeated for the PALETTE color type here - this is no - * longer necessary (and doesn't seem to have been necessary before.) - */ - { - /* The following temporary indicates if overall gamma correction is - * required. - */ - int gamma_correction = 0; - - if (png_ptr->colorspace.gamma != 0) /* has been set */ - { - if (png_ptr->screen_gamma != 0) /* screen set too */ - gamma_correction = png_gamma_threshold(png_ptr->colorspace.gamma, - png_ptr->screen_gamma); - - else - /* Assume the output matches the input; a long time default behavior - * of libpng, although the standard has nothing to say about this. - */ - png_ptr->screen_gamma = png_reciprocal(png_ptr->colorspace.gamma); - } - - else if (png_ptr->screen_gamma != 0) - /* The converse - assume the file matches the screen, note that this - * perhaps undesireable default can (from 1.5.4) be changed by calling - * png_set_alpha_mode (even if the alpha handling mode isn't required - * or isn't changed from the default.) - */ - png_ptr->colorspace.gamma = png_reciprocal(png_ptr->screen_gamma); - - else /* neither are set */ - /* Just in case the following prevents any processing - file and screen - * are both assumed to be linear and there is no way to introduce a - * third gamma value other than png_set_background with 'UNIQUE', and, - * prior to 1.5.4 - */ - png_ptr->screen_gamma = png_ptr->colorspace.gamma = PNG_FP_1; - - /* We have a gamma value now. */ - png_ptr->colorspace.flags |= PNG_COLORSPACE_HAVE_GAMMA; - - /* Now turn the gamma transformation on or off as appropriate. Notice - * that PNG_GAMMA just refers to the file->screen correction. Alpha - * composition may independently cause gamma correction because it needs - * linear data (e.g. if the file has a gAMA chunk but the screen gamma - * hasn't been specified.) In any case this flag may get turned off in - * the code immediately below if the transform can be handled outside the - * row loop. - */ - if (gamma_correction != 0) - png_ptr->transformations |= PNG_GAMMA; - - else - png_ptr->transformations &= ~PNG_GAMMA; - } -#endif - - /* Certain transformations have the effect of preventing other - * transformations that happen afterward in png_do_read_transformations, - * resolve the interdependencies here. From the code of - * png_do_read_transformations the order is: - * - * 1) PNG_EXPAND (including PNG_EXPAND_tRNS) - * 2) PNG_STRIP_ALPHA (if no compose) - * 3) PNG_RGB_TO_GRAY - * 4) PNG_GRAY_TO_RGB iff !PNG_BACKGROUND_IS_GRAY - * 5) PNG_COMPOSE - * 6) PNG_GAMMA - * 7) PNG_STRIP_ALPHA (if compose) - * 8) PNG_ENCODE_ALPHA - * 9) PNG_SCALE_16_TO_8 - * 10) PNG_16_TO_8 - * 11) PNG_QUANTIZE (converts to palette) - * 12) PNG_EXPAND_16 - * 13) PNG_GRAY_TO_RGB iff PNG_BACKGROUND_IS_GRAY - * 14) PNG_INVERT_MONO - * 15) PNG_INVERT_ALPHA - * 16) PNG_SHIFT - * 17) PNG_PACK - * 18) PNG_BGR - * 19) PNG_PACKSWAP - * 20) PNG_FILLER (includes PNG_ADD_ALPHA) - * 21) PNG_SWAP_ALPHA - * 22) PNG_SWAP_BYTES - * 23) PNG_USER_TRANSFORM [must be last] - */ -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED - if ((png_ptr->transformations & PNG_STRIP_ALPHA) && - !(png_ptr->transformations & PNG_COMPOSE)) - { - /* Stripping the alpha channel happens immediately after the 'expand' - * transformations, before all other transformation, so it cancels out - * the alpha handling. It has the side effect negating the effect of - * PNG_EXPAND_tRNS too: - */ - png_ptr->transformations &= ~(PNG_BACKGROUND_EXPAND | PNG_ENCODE_ALPHA | - PNG_EXPAND_tRNS); - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - - /* Kill the tRNS chunk itself too. Prior to 1.5.4 this did not happen - * so transparency information would remain just so long as it wasn't - * expanded. This produces unexpected API changes if the set of things - * that do PNG_EXPAND_tRNS changes (perfectly possible given the - * documentation - which says ask for what you want, accept what you - * get.) This makes the behavior consistent from 1.5.4: - */ - png_ptr->num_trans = 0; - } -#endif /* STRIP_ALPHA supported, no COMPOSE */ - -#ifdef PNG_READ_ALPHA_MODE_SUPPORTED - /* If the screen gamma is about 1.0 then the OPTIMIZE_ALPHA and ENCODE_ALPHA - * settings will have no effect. - */ - if (!png_gamma_significant(png_ptr->screen_gamma)) - { - png_ptr->transformations &= ~PNG_ENCODE_ALPHA; - png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA; - } -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - /* Make sure the coefficients for the rgb to gray conversion are set - * appropriately. - */ - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - png_colorspace_set_rgb_coefficients(png_ptr); -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED -#if defined(PNG_READ_EXPAND_SUPPORTED) && defined(PNG_READ_BACKGROUND_SUPPORTED) - /* Detect gray background and attempt to enable optimization for - * gray --> RGB case. - * - * Note: if PNG_BACKGROUND_EXPAND is set and color_type is either RGB or - * RGB_ALPHA (in which case need_expand is superfluous anyway), the - * background color might actually be gray yet not be flagged as such. - * This is not a problem for the current code, which uses - * PNG_BACKGROUND_IS_GRAY only to decide when to do the - * png_do_gray_to_rgb() transformation. - * - * TODO: this code needs to be revised to avoid the complexity and - * interdependencies. The color type of the background should be recorded in - * png_set_background, along with the bit depth, then the code has a record - * of exactly what color space the background is currently in. - */ - if (png_ptr->transformations & PNG_BACKGROUND_EXPAND) - { - /* PNG_BACKGROUND_EXPAND: the background is in the file color space, so if - * the file was grayscale the background value is gray. - */ - if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) - png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; - } - - else if (png_ptr->transformations & PNG_COMPOSE) - { - /* PNG_COMPOSE: png_set_background was called with need_expand false, - * so the color is in the color space of the output or png_set_alpha_mode - * was called and the color is black. Ignore RGB_TO_GRAY because that - * happens before GRAY_TO_RGB. - */ - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - { - if (png_ptr->background.red == png_ptr->background.green && - png_ptr->background.red == png_ptr->background.blue) - { - png_ptr->mode |= PNG_BACKGROUND_IS_GRAY; - png_ptr->background.gray = png_ptr->background.red; - } - } - } -#endif /* PNG_READ_EXPAND_SUPPORTED && PNG_READ_BACKGROUND_SUPPORTED */ -#endif /* PNG_READ_GRAY_TO_RGB_SUPPORTED */ - - /* For indexed PNG data (PNG_COLOR_TYPE_PALETTE) many of the transformations - * can be performed directly on the palette, and some (such as rgb to gray) - * can be optimized inside the palette. This is particularly true of the - * composite (background and alpha) stuff, which can be pretty much all done - * in the palette even if the result is expanded to RGB or gray afterward. - * - * NOTE: this is Not Yet Implemented, the code behaves as in 1.5.1 and - * earlier and the palette stuff is actually handled on the first row. This - * leads to the reported bug that the palette returned by png_get_PLTE is not - * updated. - */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_init_palette_transformations(png_ptr); - - else - png_init_rgb_transformations(png_ptr); - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - defined(PNG_READ_EXPAND_16_SUPPORTED) - if ((png_ptr->transformations & PNG_EXPAND_16) && - (png_ptr->transformations & PNG_COMPOSE) && - !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - png_ptr->bit_depth != 16) - { - /* TODO: fix this. Because the expand_16 operation is after the compose - * handling the background color must be 8, not 16, bits deep, but the - * application will supply a 16-bit value so reduce it here. - * - * The PNG_BACKGROUND_EXPAND code above does not expand to 16 bits at - * present, so that case is ok (until do_expand_16 is moved.) - * - * NOTE: this discards the low 16 bits of the user supplied background - * color, but until expand_16 works properly there is no choice! - */ -# define CHOP(x) (x)=((png_uint_16)PNG_DIV257(x)) - CHOP(png_ptr->background.red); - CHOP(png_ptr->background.green); - CHOP(png_ptr->background.blue); - CHOP(png_ptr->background.gray); -# undef CHOP - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED && PNG_READ_EXPAND_16_SUPPORTED */ - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) && \ - (defined(PNG_READ_SCALE_16_TO_8_SUPPORTED) || \ - defined(PNG_READ_STRIP_16_TO_8_SUPPORTED)) - if ((png_ptr->transformations & (PNG_16_TO_8|PNG_SCALE_16_TO_8)) && - (png_ptr->transformations & PNG_COMPOSE) && - !(png_ptr->transformations & PNG_BACKGROUND_EXPAND) && - png_ptr->bit_depth == 16) - { - /* On the other hand, if a 16-bit file is to be reduced to 8-bits per - * component this will also happen after PNG_COMPOSE and so the background - * color must be pre-expanded here. - * - * TODO: fix this too. - */ - png_ptr->background.red = (png_uint_16)(png_ptr->background.red * 257); - png_ptr->background.green = - (png_uint_16)(png_ptr->background.green * 257); - png_ptr->background.blue = (png_uint_16)(png_ptr->background.blue * 257); - png_ptr->background.gray = (png_uint_16)(png_ptr->background.gray * 257); - } -#endif - - /* NOTE: below 'PNG_READ_ALPHA_MODE_SUPPORTED' is presumed to also enable the - * background support (see the comments in scripts/pnglibconf.dfa), this - * allows pre-multiplication of the alpha channel to be implemented as - * compositing on black. This is probably sub-optimal and has been done in - * 1.5.4 betas simply to enable external critique and testing (i.e. to - * implement the new API quickly, without lots of internal changes.) - */ - -#ifdef PNG_READ_GAMMA_SUPPORTED -# ifdef PNG_READ_BACKGROUND_SUPPORTED - /* Includes ALPHA_MODE */ - png_ptr->background_1 = png_ptr->background; -# endif - - /* This needs to change - in the palette image case a whole set of tables are - * built when it would be quicker to just calculate the correct value for - * each palette entry directly. Also, the test is too tricky - why check - * PNG_RGB_TO_GRAY if PNG_GAMMA is not set? The answer seems to be that - * PNG_GAMMA is cancelled even if the gamma is known? The test excludes the - * PNG_COMPOSE case, so apparently if there is no *overall* gamma correction - * the gamma tables will not be built even if composition is required on a - * gamma encoded value. - * - * In 1.5.4 this is addressed below by an additional check on the individual - * file gamma - if it is not 1.0 both RGB_TO_GRAY and COMPOSE need the - * tables. - */ - if ((png_ptr->transformations & PNG_GAMMA) - || ((png_ptr->transformations & PNG_RGB_TO_GRAY) - && (png_gamma_significant(png_ptr->colorspace.gamma) || - png_gamma_significant(png_ptr->screen_gamma))) - || ((png_ptr->transformations & PNG_COMPOSE) - && (png_gamma_significant(png_ptr->colorspace.gamma) - || png_gamma_significant(png_ptr->screen_gamma) -# ifdef PNG_READ_BACKGROUND_SUPPORTED - || (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_UNIQUE - && png_gamma_significant(png_ptr->background_gamma)) -# endif - )) || ((png_ptr->transformations & PNG_ENCODE_ALPHA) - && png_gamma_significant(png_ptr->screen_gamma)) - ) - { - png_build_gamma_table(png_ptr, png_ptr->bit_depth); - -#ifdef PNG_READ_BACKGROUND_SUPPORTED - if (png_ptr->transformations & PNG_COMPOSE) - { - /* Issue a warning about this combination: because RGB_TO_GRAY is - * optimized to do the gamma transform if present yet do_background has - * to do the same thing if both options are set a - * double-gamma-correction happens. This is true in all versions of - * libpng to date. - */ - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - png_warning(png_ptr, - "libpng does not support gamma+background+rgb_to_gray"); - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - /* We don't get to here unless there is a tRNS chunk with non-opaque - * entries - see the checking code at the start of this function. - */ - png_color back, back_1; - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - if (png_ptr->background_gamma_type == PNG_BACKGROUND_GAMMA_FILE) - { - - back.red = png_ptr->gamma_table[png_ptr->background.red]; - back.green = png_ptr->gamma_table[png_ptr->background.green]; - back.blue = png_ptr->gamma_table[png_ptr->background.blue]; - - back_1.red = png_ptr->gamma_to_1[png_ptr->background.red]; - back_1.green = png_ptr->gamma_to_1[png_ptr->background.green]; - back_1.blue = png_ptr->gamma_to_1[png_ptr->background.blue]; - } - else - { - png_fixed_point g, gs; - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = (png_ptr->screen_gamma); - gs = PNG_FP_1; - break; - - case PNG_BACKGROUND_GAMMA_FILE: - g = png_reciprocal(png_ptr->colorspace.gamma); - gs = png_reciprocal2(png_ptr->colorspace.gamma, - png_ptr->screen_gamma); - break; - - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = png_reciprocal(png_ptr->background_gamma); - gs = png_reciprocal2(png_ptr->background_gamma, - png_ptr->screen_gamma); - break; - default: - g = PNG_FP_1; /* back_1 */ - gs = PNG_FP_1; /* back */ - break; - } - - if (png_gamma_significant(gs)) - { - back.red = png_gamma_8bit_correct(png_ptr->background.red, - gs); - back.green = png_gamma_8bit_correct(png_ptr->background.green, - gs); - back.blue = png_gamma_8bit_correct(png_ptr->background.blue, - gs); - } - - else - { - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - } - - if (png_gamma_significant(g)) - { - back_1.red = png_gamma_8bit_correct(png_ptr->background.red, - g); - back_1.green = png_gamma_8bit_correct( - png_ptr->background.green, g); - back_1.blue = png_gamma_8bit_correct(png_ptr->background.blue, - g); - } - - else - { - back_1.red = (png_byte)png_ptr->background.red; - back_1.green = (png_byte)png_ptr->background.green; - back_1.blue = (png_byte)png_ptr->background.blue; - } - } - - for (i = 0; i < num_palette; i++) - { - if (i < (int)png_ptr->num_trans && - png_ptr->trans_alpha[i] != 0xff) - { - if (png_ptr->trans_alpha[i] == 0) - { - palette[i] = back; - } - else /* if (png_ptr->trans_alpha[i] != 0xff) */ - { - png_byte v, w; - - v = png_ptr->gamma_to_1[palette[i].red]; - png_composite(w, v, png_ptr->trans_alpha[i], back_1.red); - palette[i].red = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].green]; - png_composite(w, v, png_ptr->trans_alpha[i], back_1.green); - palette[i].green = png_ptr->gamma_from_1[w]; - - v = png_ptr->gamma_to_1[palette[i].blue]; - png_composite(w, v, png_ptr->trans_alpha[i], back_1.blue); - palette[i].blue = png_ptr->gamma_from_1[w]; - } - } - else - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - } - - /* Prevent the transformations being done again. - * - * NOTE: this is highly dubious; it removes the transformations in - * place. This seems inconsistent with the general treatment of the - * transformations elsewhere. - */ - png_ptr->transformations &= ~(PNG_COMPOSE | PNG_GAMMA); - } /* color_type == PNG_COLOR_TYPE_PALETTE */ - - /* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */ - else /* color_type != PNG_COLOR_TYPE_PALETTE */ - { - int gs_sig, g_sig; - png_fixed_point g = PNG_FP_1; /* Correction to linear */ - png_fixed_point gs = PNG_FP_1; /* Correction to screen */ - - switch (png_ptr->background_gamma_type) - { - case PNG_BACKGROUND_GAMMA_SCREEN: - g = png_ptr->screen_gamma; - /* gs = PNG_FP_1; */ - break; - - case PNG_BACKGROUND_GAMMA_FILE: - g = png_reciprocal(png_ptr->colorspace.gamma); - gs = png_reciprocal2(png_ptr->colorspace.gamma, - png_ptr->screen_gamma); - break; - - case PNG_BACKGROUND_GAMMA_UNIQUE: - g = png_reciprocal(png_ptr->background_gamma); - gs = png_reciprocal2(png_ptr->background_gamma, - png_ptr->screen_gamma); - break; - - default: - png_error(png_ptr, "invalid background gamma type"); - } - - g_sig = png_gamma_significant(g); - gs_sig = png_gamma_significant(gs); - - if (g_sig != 0) - png_ptr->background_1.gray = png_gamma_correct(png_ptr, - png_ptr->background.gray, g); - - if (gs_sig != 0) - png_ptr->background.gray = png_gamma_correct(png_ptr, - png_ptr->background.gray, gs); - - if ((png_ptr->background.red != png_ptr->background.green) || - (png_ptr->background.red != png_ptr->background.blue) || - (png_ptr->background.red != png_ptr->background.gray)) - { - /* RGB or RGBA with color background */ - if (g_sig != 0) - { - png_ptr->background_1.red = png_gamma_correct(png_ptr, - png_ptr->background.red, g); - - png_ptr->background_1.green = png_gamma_correct(png_ptr, - png_ptr->background.green, g); - - png_ptr->background_1.blue = png_gamma_correct(png_ptr, - png_ptr->background.blue, g); - } - - if (gs_sig != 0) - { - png_ptr->background.red = png_gamma_correct(png_ptr, - png_ptr->background.red, gs); - - png_ptr->background.green = png_gamma_correct(png_ptr, - png_ptr->background.green, gs); - - png_ptr->background.blue = png_gamma_correct(png_ptr, - png_ptr->background.blue, gs); - } - } - - else - { - /* GRAY, GRAY ALPHA, RGB, or RGBA with gray background */ - png_ptr->background_1.red = png_ptr->background_1.green - = png_ptr->background_1.blue = png_ptr->background_1.gray; - - png_ptr->background.red = png_ptr->background.green - = png_ptr->background.blue = png_ptr->background.gray; - } - - /* The background is now in screen gamma: */ - png_ptr->background_gamma_type = PNG_BACKGROUND_GAMMA_SCREEN; - } /* color_type != PNG_COLOR_TYPE_PALETTE */ - }/* png_ptr->transformations & PNG_BACKGROUND */ - - else - /* Transformation does not include PNG_BACKGROUND */ -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - /* RGB_TO_GRAY needs to have non-gamma-corrected values! */ - && ((png_ptr->transformations & PNG_EXPAND) == 0 || - (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0) -#endif - ) - { - png_colorp palette = png_ptr->palette; - int num_palette = png_ptr->num_palette; - int i; - - /* NOTE: there are other transformations that should probably be in - * here too. - */ - for (i = 0; i < num_palette; i++) - { - palette[i].red = png_ptr->gamma_table[palette[i].red]; - palette[i].green = png_ptr->gamma_table[palette[i].green]; - palette[i].blue = png_ptr->gamma_table[palette[i].blue]; - } - - /* Done the gamma correction. */ - png_ptr->transformations &= ~PNG_GAMMA; - } /* color_type == PALETTE && !PNG_BACKGROUND transformation */ - } -#ifdef PNG_READ_BACKGROUND_SUPPORTED - else -#endif -#endif /* PNG_READ_GAMMA_SUPPORTED */ - -#ifdef PNG_READ_BACKGROUND_SUPPORTED - /* No GAMMA transformation (see the hanging else 4 lines above) */ - if ((png_ptr->transformations & PNG_COMPOSE) && - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) - { - int i; - int istop = (int)png_ptr->num_trans; - png_color back; - png_colorp palette = png_ptr->palette; - - back.red = (png_byte)png_ptr->background.red; - back.green = (png_byte)png_ptr->background.green; - back.blue = (png_byte)png_ptr->background.blue; - - for (i = 0; i < istop; i++) - { - if (png_ptr->trans_alpha[i] == 0) - { - palette[i] = back; - } - - else if (png_ptr->trans_alpha[i] != 0xff) - { - /* The png_composite() macro is defined in png.h */ - png_composite(palette[i].red, palette[i].red, - png_ptr->trans_alpha[i], back.red); - - png_composite(palette[i].green, palette[i].green, - png_ptr->trans_alpha[i], back.green); - - png_composite(palette[i].blue, palette[i].blue, - png_ptr->trans_alpha[i], back.blue); - } - } - - png_ptr->transformations &= ~PNG_COMPOSE; - } -#endif /* PNG_READ_BACKGROUND_SUPPORTED */ - -#ifdef PNG_READ_SHIFT_SUPPORTED - if ((png_ptr->transformations & PNG_SHIFT) && - !(png_ptr->transformations & PNG_EXPAND) && - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)) - { - int i; - int istop = png_ptr->num_palette; - int shift = 8 - png_ptr->sig_bit.red; - - png_ptr->transformations &= ~PNG_SHIFT; - - /* significant bits can be in the range 1 to 7 for a meaninful result, if - * the number of significant bits is 0 then no shift is done (this is an - * error condition which is silently ignored.) - */ - if (shift > 0 && shift < 8) - for (i=0; ipalette[i].red; - - component >>= shift; - png_ptr->palette[i].red = (png_byte)component; - } - - shift = 8 - png_ptr->sig_bit.green; - if (shift > 0 && shift < 8) - for (i=0; ipalette[i].green; - - component >>= shift; - png_ptr->palette[i].green = (png_byte)component; - } - - shift = 8 - png_ptr->sig_bit.blue; - if (shift > 0 && shift < 8) - for (i=0; ipalette[i].blue; - - component >>= shift; - png_ptr->palette[i].blue = (png_byte)component; - } - } -#endif /* PNG_READ_SHIFT_SUPPORTED */ -} - -/* Modify the info structure to reflect the transformations. The - * info should be updated so a PNG file could be written with it, - * assuming the transformations result in valid PNG data. - */ -void /* PRIVATE */ -png_read_transform_info(png_structrp png_ptr, png_inforp info_ptr) -{ - png_debug(1, "in png_read_transform_info"); - -#ifdef PNG_READ_EXPAND_SUPPORTED - if (png_ptr->transformations & PNG_EXPAND) - { - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - /* This check must match what actually happens in - * png_do_expand_palette; if it ever checks the tRNS chunk to see if - * it is all opaque we must do the same (at present it does not.) - */ - if (png_ptr->num_trans > 0) - info_ptr->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - - else - info_ptr->color_type = PNG_COLOR_TYPE_RGB; - - info_ptr->bit_depth = 8; - info_ptr->num_trans = 0; - - if (png_ptr->palette == NULL) - png_error (png_ptr, "Palette is NULL in indexed image"); - } - else - { - if (png_ptr->num_trans) - { - if (png_ptr->transformations & PNG_EXPAND_tRNS) - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; - } - if (info_ptr->bit_depth < 8) - info_ptr->bit_depth = 8; - - info_ptr->num_trans = 0; - } - } -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) - /* The following is almost certainly wrong unless the background value is in - * the screen space! - */ - if (png_ptr->transformations & PNG_COMPOSE) - info_ptr->background = png_ptr->background; -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED - /* The following used to be conditional on PNG_GAMMA (prior to 1.5.4), - * however it seems that the code in png_init_read_transformations, which has - * been called before this from png_read_update_info->png_read_start_row - * sometimes does the gamma transform and cancels the flag. - * - * TODO: this looks wrong; the info_ptr should end up with a gamma equal to - * the screen_gamma value. The following probably results in weirdness if - * the info_ptr is used by the app after the rows have been read. - */ - info_ptr->colorspace.gamma = png_ptr->colorspace.gamma; -#endif - - if (info_ptr->bit_depth == 16) - { -# ifdef PNG_READ_16BIT_SUPPORTED -# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED - if (png_ptr->transformations & PNG_SCALE_16_TO_8) - info_ptr->bit_depth = 8; -# endif - -# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED - if (png_ptr->transformations & PNG_16_TO_8) - info_ptr->bit_depth = 8; -# endif - -# else - /* No 16 bit support: force chopping 16-bit input down to 8, in this case - * the app program can chose if both APIs are available by setting the - * correct scaling to use. - */ -# ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED - /* For compatibility with previous versions use the strip method by - * default. This code works because if PNG_SCALE_16_TO_8 is already - * set the code below will do that in preference to the chop. - */ - png_ptr->transformations |= PNG_16_TO_8; - info_ptr->bit_depth = 8; -# else - -# ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED - png_ptr->transformations |= PNG_SCALE_16_TO_8; - info_ptr->bit_depth = 8; -# else - - CONFIGURATION ERROR: you must enable at least one 16 to 8 method -# endif -# endif -#endif /* !READ_16BIT_SUPPORTED */ - } - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - info_ptr->color_type = (png_byte)(info_ptr->color_type | - PNG_COLOR_MASK_COLOR); -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - info_ptr->color_type = (png_byte)(info_ptr->color_type & - ~PNG_COLOR_MASK_COLOR); -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED - if (png_ptr->transformations & PNG_QUANTIZE) - { - if (((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)) && - png_ptr->palette_lookup && info_ptr->bit_depth == 8) - { - info_ptr->color_type = PNG_COLOR_TYPE_PALETTE; - } - } -#endif - -#ifdef PNG_READ_EXPAND_16_SUPPORTED - if (png_ptr->transformations & PNG_EXPAND_16 && info_ptr->bit_depth == 8 && - info_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - info_ptr->bit_depth = 16; - } -#endif - -#ifdef PNG_READ_PACK_SUPPORTED - if ((png_ptr->transformations & PNG_PACK) && (info_ptr->bit_depth < 8)) - info_ptr->bit_depth = 8; -#endif - - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - - else - info_ptr->channels = 1; - -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_STRIP_ALPHA) - { - info_ptr->color_type = (png_byte)(info_ptr->color_type & - ~PNG_COLOR_MASK_ALPHA); - info_ptr->num_trans = 0; - } -#endif - - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - -#ifdef PNG_READ_FILLER_SUPPORTED - /* STRIP_ALPHA and FILLER allowed: MASK_ALPHA bit stripped above */ - if ((png_ptr->transformations & PNG_FILLER) && - ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) || - (info_ptr->color_type == PNG_COLOR_TYPE_GRAY))) - { - info_ptr->channels++; - /* If adding a true alpha channel not just filler */ - if (png_ptr->transformations & PNG_ADD_ALPHA) - info_ptr->color_type |= PNG_COLOR_MASK_ALPHA; - } -#endif - -#if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \ -defined(PNG_READ_USER_TRANSFORM_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - { - if (info_ptr->bit_depth < png_ptr->user_transform_depth) - info_ptr->bit_depth = png_ptr->user_transform_depth; - - if (info_ptr->channels < png_ptr->user_transform_channels) - info_ptr->channels = png_ptr->user_transform_channels; - } -#endif - - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * - info_ptr->bit_depth); - - info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, info_ptr->width); - - /* Adding in 1.5.4: cache the above value in png_struct so that we can later - * check in png_rowbytes that the user buffer won't get overwritten. Note - * that the field is not always set - if png_read_update_info isn't called - * the application has to either not do any transforms or get the calculation - * right itself. - */ - png_ptr->info_rowbytes = info_ptr->rowbytes; - -#ifndef PNG_READ_EXPAND_SUPPORTED - if (png_ptr != NULL) - return; -#endif -} - -#ifdef PNG_READ_PACK_SUPPORTED -/* Unpack pixels of 1, 2, or 4 bits per pixel into 1 byte per pixel, - * without changing the actual values. Thus, if you had a row with - * a bit depth of 1, you would end up with bytes that only contained - * the numbers 0 or 1. If you would rather they contain 0 and 255, use - * png_do_shift() after this. - */ -static void -png_do_unpack(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_unpack"); - - if (row_info->bit_depth < 8) - { - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - switch (row_info->bit_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 3); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x01); - - if (shift == 7) - { - shift = 0; - sp--; - } - - else - shift++; - - dp--; - } - break; - } - - case 2: - { - - png_bytep sp = row + (png_size_t)((row_width - 1) >> 2); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x03); - - if (shift == 6) - { - shift = 0; - sp--; - } - - else - shift += 2; - - dp--; - } - break; - } - - case 4: - { - png_bytep sp = row + (png_size_t)((row_width - 1) >> 1); - png_bytep dp = row + (png_size_t)row_width - 1; - png_uint_32 shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - *dp = (png_byte)((*sp >> shift) & 0x0f); - - if (shift == 4) - { - shift = 0; - sp--; - } - - else - shift = 4; - - dp--; - } - break; - } - - default: - break; - } - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_width * row_info->channels; - } -} -#endif - -#ifdef PNG_READ_SHIFT_SUPPORTED -/* Reverse the effects of png_do_shift. This routine merely shifts the - * pixels back to their significant bits values. Thus, if you have - * a row of bit depth 8, but only 5 are significant, this will shift - * the values back to 0 through 31. - */ -static void -png_do_unshift(png_row_infop row_info, png_bytep row, - png_const_color_8p sig_bits) -{ - int color_type; - - png_debug(1, "in png_do_unshift"); - - /* The palette case has already been handled in the _init routine. */ - color_type = row_info->color_type; - - if (color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift[4]; - int channels = 0; - int bit_depth = row_info->bit_depth; - - if (color_type & PNG_COLOR_MASK_COLOR) - { - shift[channels++] = bit_depth - sig_bits->red; - shift[channels++] = bit_depth - sig_bits->green; - shift[channels++] = bit_depth - sig_bits->blue; - } - - else - { - shift[channels++] = bit_depth - sig_bits->gray; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - shift[channels++] = bit_depth - sig_bits->alpha; - } - - { - int c, have_shift; - - for (c = have_shift = 0; c < channels; ++c) - { - /* A shift of more than the bit depth is an error condition but it - * gets ignored here. - */ - if (shift[c] <= 0 || shift[c] >= bit_depth) - shift[c] = 0; - - else - have_shift = 1; - } - - if (have_shift == 0) - return; - } - - switch (bit_depth) - { - default: - /* Must be 1bpp gray: should not be here! */ - /* NOTREACHED */ - break; - - case 2: - /* Must be 2bpp gray */ - /* assert(channels == 1 && shift[0] == 1) */ - { - png_bytep bp = row; - png_bytep bp_end = bp + row_info->rowbytes; - - while (bp < bp_end) - { - int b = (*bp >> 1) & 0x55; - *bp++ = (png_byte)b; - } - break; - } - - case 4: - /* Must be 4bpp gray */ - /* assert(channels == 1) */ - { - png_bytep bp = row; - png_bytep bp_end = bp + row_info->rowbytes; - int gray_shift = shift[0]; - int mask = 0xf >> gray_shift; - - mask |= mask << 4; - - while (bp < bp_end) - { - int b = (*bp >> gray_shift) & mask; - *bp++ = (png_byte)b; - } - break; - } - - case 8: - /* Single byte components, G, GA, RGB, RGBA */ - { - png_bytep bp = row; - png_bytep bp_end = bp + row_info->rowbytes; - int channel = 0; - - while (bp < bp_end) - { - int b = *bp >> shift[channel]; - if (++channel >= channels) - channel = 0; - *bp++ = (png_byte)b; - } - break; - } - -#ifdef PNG_READ_16BIT_SUPPORTED - case 16: - /* Double byte components, G, GA, RGB, RGBA */ - { - png_bytep bp = row; - png_bytep bp_end = bp + row_info->rowbytes; - int channel = 0; - - while (bp < bp_end) - { - int value = (bp[0] << 8) + bp[1]; - - value >>= shift[channel]; - if (++channel >= channels) - channel = 0; - *bp++ = (png_byte)(value >> 8); - *bp++ = (png_byte)(value & 0xff); - } - break; - } -#endif - } - } -} -#endif - -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED -/* Scale rows of bit depth 16 down to 8 accurately */ -static void -png_do_scale_16_to_8(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_scale_16_to_8"); - - if (row_info->bit_depth == 16) - { - png_bytep sp = row; /* source */ - png_bytep dp = row; /* destination */ - png_bytep ep = sp + row_info->rowbytes; /* end+1 */ - - while (sp < ep) - { - /* The input is an array of 16 bit components, these must be scaled to - * 8 bits each. For a 16 bit value V the required value (from the PNG - * specification) is: - * - * (V * 255) / 65535 - * - * This reduces to round(V / 257), or floor((V + 128.5)/257) - * - * Represent V as the two byte value vhi.vlo. Make a guess that the - * result is the top byte of V, vhi, then the correction to this value - * is: - * - * error = floor(((V-vhi.vhi) + 128.5) / 257) - * = floor(((vlo-vhi) + 128.5) / 257) - * - * This can be approximated using integer arithmetic (and a signed - * shift): - * - * error = (vlo-vhi+128) >> 8; - * - * The approximate differs from the exact answer only when (vlo-vhi) is - * 128; it then gives a correction of +1 when the exact correction is - * 0. This gives 128 errors. The exact answer (correct for all 16 bit - * input values) is: - * - * error = (vlo-vhi+128)*65535 >> 24; - * - * An alternative arithmetic calculation which also gives no errors is: - * - * (V * 255 + 32895) >> 16 - */ - - png_int_32 tmp = *sp++; /* must be signed! */ - tmp += (((int)*sp++ - tmp + 128) * 65535) >> 24; - *dp++ = (png_byte)tmp; - } - - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_info->width * row_info->channels; - } -} -#endif - -#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED -static void -/* Simply discard the low byte. This was the default behavior prior - * to libpng-1.5.4. - */ -png_do_chop(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_chop"); - - if (row_info->bit_depth == 16) - { - png_bytep sp = row; /* source */ - png_bytep dp = row; /* destination */ - png_bytep ep = sp + row_info->rowbytes; /* end+1 */ - - while (sp < ep) - { - *dp++ = *sp; - sp += 2; /* skip low byte */ - } - - row_info->bit_depth = 8; - row_info->pixel_depth = (png_byte)(8 * row_info->channels); - row_info->rowbytes = row_info->width * row_info->channels; - } -} -#endif - -#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED -static void -png_do_read_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_read_swap_alpha"); - - { - png_uint_32 row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - /* This converts from RGBA to ARGB */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - /* This converts from RRGGBBAA to AARRGGBB */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } -#endif - } - - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - /* This converts from GA to AG */ - if (row_info->bit_depth == 8) - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save; - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - /* This converts from GGAA to AAGG */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_byte save[2]; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - save[0] = *(--sp); - save[1] = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = save[0]; - *(--dp) = save[1]; - } - } -#endif - } - } -} -#endif - -#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED -static void -png_do_read_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_uint_32 row_width; - png_debug(1, "in png_do_read_invert_alpha"); - - row_width = row_info->width; - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This inverts the alpha channel in RGBA */ - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=3; - dp=sp; - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - /* This inverts the alpha channel in RRGGBBAA */ - else - { - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); - -/* This does nothing: - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - We can replace it with: -*/ - sp-=6; - dp=sp; - } - } -#endif - } - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This inverts the alpha channel in GA */ - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = *(--sp); - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - else - { - /* This inverts the alpha channel in GGAA */ - png_bytep sp = row + row_info->rowbytes; - png_bytep dp = sp; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - *(--dp) = (png_byte)(255 - *(--sp)); - *(--dp) = (png_byte)(255 - *(--sp)); -/* - *(--dp) = *(--sp); - *(--dp) = *(--sp); -*/ - sp-=2; - dp=sp; - } - } -#endif - } -} -#endif - -#ifdef PNG_READ_FILLER_SUPPORTED -/* Add filler channel if we have RGB color */ -static void -png_do_read_filler(png_row_infop row_info, png_bytep row, - png_uint_32 filler, png_uint_32 flags) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - -#ifdef PNG_READ_16BIT_SUPPORTED - png_byte hi_filler = (png_byte)((filler>>8) & 0xff); -#endif - png_byte lo_filler = (png_byte)(filler & 0xff); - - png_debug(1, "in png_do_read_filler"); - - if ( - row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if (row_info->bit_depth == 8) - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This changes the data from G to GX */ - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - - else - { - /* This changes the data from G to XG */ - png_bytep sp = row + (png_size_t)row_width; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 16; - row_info->rowbytes = row_width * 2; - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - else if (row_info->bit_depth == 16) - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This changes the data from GG to GGXX */ - png_bytep sp = row + (png_size_t)row_width * 2; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - - else - { - /* This changes the data from GG to XXGG */ - png_bytep sp = row + (png_size_t)row_width * 2; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - row_info->channels = 2; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } -#endif - } /* COLOR_TYPE == GRAY */ - else if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - if (row_info->bit_depth == 8) - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This changes the data from RGB to RGBX */ - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 1; i < row_width; i++) - { - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - - else - { - /* This changes the data from RGB to XRGB */ - png_bytep sp = row + (png_size_t)row_width * 3; - png_bytep dp = sp + (png_size_t)row_width; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = lo_filler; - } - row_info->channels = 4; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - } - } - -#ifdef PNG_READ_16BIT_SUPPORTED - else if (row_info->bit_depth == 16) - { - if (flags & PNG_FLAG_FILLER_AFTER) - { - /* This changes the data from RRGGBB to RRGGBBXX */ - png_bytep sp = row + (png_size_t)row_width * 6; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 1; i < row_width; i++) - { - *(--dp) = hi_filler; - *(--dp) = lo_filler; - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - } - *(--dp) = hi_filler; - *(--dp) = lo_filler; - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - - else - { - /* This changes the data from RRGGBB to XXRRGGBB */ - png_bytep sp = row + (png_size_t)row_width * 6; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = *(--sp); - *(--dp) = hi_filler; - *(--dp) = lo_filler; - } - - row_info->channels = 4; - row_info->pixel_depth = 64; - row_info->rowbytes = row_width * 8; - } - } -#endif - } /* COLOR_TYPE == RGB */ -} -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED -/* Expand grayscale files to RGB, with or without alpha */ -static void -png_do_gray_to_rgb(png_row_infop row_info, png_bytep row) -{ - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - png_debug(1, "in png_do_gray_to_rgb"); - - if (row_info->bit_depth >= 8 && - !(row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - if (row_info->bit_depth == 8) - { - /* This changes G to RGB */ - png_bytep sp = row + (png_size_t)row_width - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - - else - { - /* This changes GG to RRGGBB */ - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This changes GA to RGBA */ - png_bytep sp = row + (png_size_t)row_width * 2 - 1; - png_bytep dp = sp + (png_size_t)row_width * 2; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *sp; - *(dp--) = *(sp--); - } - } - - else - { - /* This changes GGAA to RRGGBBAA */ - png_bytep sp = row + (png_size_t)row_width * 4 - 1; - png_bytep dp = sp + (png_size_t)row_width * 4; - for (i = 0; i < row_width; i++) - { - *(dp--) = *(sp--); - *(dp--) = *(sp--); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *sp; - *(dp--) = *(sp - 1); - *(dp--) = *(sp--); - *(dp--) = *(sp--); - } - } - } - row_info->channels = (png_byte)(row_info->channels + 2); - row_info->color_type |= PNG_COLOR_MASK_COLOR; - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); - } -} -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED -/* Reduce RGB files to grayscale, with or without alpha - * using the equation given in Poynton's ColorFAQ of 1998-01-04 at - * (THIS LINK IS DEAD June 2008 but - * versions dated 1998 through November 2002 have been archived at - * http://web.archive.org/web/20000816232553/http://www.inforamp.net/ - * ~poynton/notes/colour_and_gamma/ColorFAQ.txt ) - * Charles Poynton poynton at poynton.com - * - * Y = 0.212671 * R + 0.715160 * G + 0.072169 * B - * - * which can be expressed with integers as - * - * Y = (6969 * R + 23434 * G + 2365 * B)/32768 - * - * Poynton's current link (as of January 2003 through July 2011): - * - * has changed the numbers slightly: - * - * Y = 0.2126*R + 0.7152*G + 0.0722*B - * - * which can be expressed with integers as - * - * Y = (6966 * R + 23436 * G + 2366 * B)/32768 - * - * Historically, however, libpng uses numbers derived from the ITU-R Rec 709 - * end point chromaticities and the D65 white point. Depending on the - * precision used for the D65 white point this produces a variety of different - * numbers, however if the four decimal place value used in ITU-R Rec 709 is - * used (0.3127,0.3290) the Y calculation would be: - * - * Y = (6968 * R + 23435 * G + 2366 * B)/32768 - * - * While this is correct the rounding results in an overflow for white, because - * the sum of the rounded coefficients is 32769, not 32768. Consequently - * libpng uses, instead, the closest non-overflowing approximation: - * - * Y = (6968 * R + 23434 * G + 2366 * B)/32768 - * - * Starting with libpng-1.5.5, if the image being converted has a cHRM chunk - * (including an sRGB chunk) then the chromaticities are used to calculate the - * coefficients. See the chunk handling in pngrutil.c for more information. - * - * In all cases the calculation is to be done in a linear colorspace. If no - * gamma information is available to correct the encoding of the original RGB - * values this results in an implicit assumption that the original PNG RGB - * values were linear. - * - * Other integer coefficents can be used via png_set_rgb_to_gray(). Because - * the API takes just red and green coefficients the blue coefficient is - * calculated to make the sum 32768. This will result in different rounding - * to that used above. - */ -static int -png_do_rgb_to_gray(png_structrp png_ptr, png_row_infop row_info, png_bytep row) - -{ - int rgb_error = 0; - - png_debug(1, "in png_do_rgb_to_gray"); - - if (!(row_info->color_type & PNG_COLOR_MASK_PALETTE) && - (row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - PNG_CONST png_uint_32 rc = png_ptr->rgb_to_gray_red_coeff; - PNG_CONST png_uint_32 gc = png_ptr->rgb_to_gray_green_coeff; - PNG_CONST png_uint_32 bc = 32768 - rc - gc; - PNG_CONST png_uint_32 row_width = row_info->width; - PNG_CONST int have_alpha = - (row_info->color_type & PNG_COLOR_MASK_ALPHA) != 0; - - if (row_info->bit_depth == 8) - { -#ifdef PNG_READ_GAMMA_SUPPORTED - /* Notice that gamma to/from 1 are not necessarily inverses (if - * there is an overall gamma correction). Prior to 1.5.5 this code - * checked the linearized values for equality; this doesn't match - * the documentation, the original values must be checked. - */ - if (png_ptr->gamma_from_1 != NULL && png_ptr->gamma_to_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - - if (red != green || red != blue) - { - red = png_ptr->gamma_to_1[red]; - green = png_ptr->gamma_to_1[green]; - blue = png_ptr->gamma_to_1[blue]; - - rgb_error |= 1; - *(dp++) = png_ptr->gamma_from_1[ - (rc*red + gc*green + bc*blue + 16384)>>15]; - } - - else - { - /* If there is no overall correction the table will not be - * set. - */ - if (png_ptr->gamma_table != NULL) - red = png_ptr->gamma_table[red]; - - *(dp++) = red; - } - - if (have_alpha != 0) - *(dp++) = *(sp++); - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - png_byte red = *(sp++); - png_byte green = *(sp++); - png_byte blue = *(sp++); - - if (red != green || red != blue) - { - rgb_error |= 1; - /* NOTE: this is the historical approach which simply - * truncates the results. - */ - *(dp++) = (png_byte)((rc*red + gc*green + bc*blue)>>15); - } - - else - *(dp++) = red; - - if (have_alpha != 0) - *(dp++) = *(sp++); - } - } - } - - else /* RGB bit_depth == 16 */ - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (png_ptr->gamma_16_to_1 != NULL && png_ptr->gamma_16_from_1 != NULL) - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, w; - - red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - - if (red == green && red == blue) - { - if (png_ptr->gamma_16_table != NULL) - w = png_ptr->gamma_16_table[(red&0xff) - >> png_ptr->gamma_shift][red>>8]; - - else - w = red; - } - - else - { - png_uint_16 red_1 = png_ptr->gamma_16_to_1[(red&0xff) - >> png_ptr->gamma_shift][red>>8]; - png_uint_16 green_1 = - png_ptr->gamma_16_to_1[(green&0xff) >> - png_ptr->gamma_shift][green>>8]; - png_uint_16 blue_1 = png_ptr->gamma_16_to_1[(blue&0xff) - >> png_ptr->gamma_shift][blue>>8]; - png_uint_16 gray16 = (png_uint_16)((rc*red_1 + gc*green_1 - + bc*blue_1 + 16384)>>15); - w = png_ptr->gamma_16_from_1[(gray16&0xff) >> - png_ptr->gamma_shift][gray16 >> 8]; - rgb_error |= 1; - } - - *(dp++) = (png_byte)((w>>8) & 0xff); - *(dp++) = (png_byte)(w & 0xff); - - if (have_alpha != 0) - { - *(dp++) = *(sp++); - *(dp++) = *(sp++); - } - } - } - else -#endif - { - png_bytep sp = row; - png_bytep dp = row; - png_uint_32 i; - - for (i = 0; i < row_width; i++) - { - png_uint_16 red, green, blue, gray16; - - red = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - green = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - blue = (png_uint_16)(((*(sp))<<8) | *(sp + 1)); sp += 2; - - if (red != green || red != blue) - rgb_error |= 1; - - /* From 1.5.5 in the 16 bit case do the accurate conversion even - * in the 'fast' case - this is because this is where the code - * ends up when handling linear 16 bit data. - */ - gray16 = (png_uint_16)((rc*red + gc*green + bc*blue + 16384) >> - 15); - *(dp++) = (png_byte)((gray16>>8) & 0xff); - *(dp++) = (png_byte)(gray16 & 0xff); - - if (have_alpha != 0) - { - *(dp++) = *(sp++); - *(dp++) = *(sp++); - } - } - } - } - - row_info->channels = (png_byte)(row_info->channels - 2); - row_info->color_type = (png_byte)(row_info->color_type & - ~PNG_COLOR_MASK_COLOR); - row_info->pixel_depth = (png_byte)(row_info->channels * - row_info->bit_depth); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); - } - return rgb_error; -} -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) -/* Replace any alpha or transparency with the supplied background color. - * "background" is already in the screen gamma, while "background_1" is - * at a gamma of 1.0. Paletted files have already been taken care of. - */ -static void -png_do_compose(png_row_infop row_info, png_bytep row, png_structrp png_ptr) -{ -#ifdef PNG_READ_GAMMA_SUPPORTED - png_const_bytep gamma_table = png_ptr->gamma_table; - png_const_bytep gamma_from_1 = png_ptr->gamma_from_1; - png_const_bytep gamma_to_1 = png_ptr->gamma_to_1; - png_const_uint_16pp gamma_16 = png_ptr->gamma_16_table; - png_const_uint_16pp gamma_16_from_1 = png_ptr->gamma_16_from_1; - png_const_uint_16pp gamma_16_to_1 = png_ptr->gamma_16_to_1; - int gamma_shift = png_ptr->gamma_shift; - int optimize = (png_ptr->flags & PNG_FLAG_OPTIMIZE_ALPHA) != 0; -#endif - - png_bytep sp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - int shift; - - png_debug(1, "in png_do_compose"); - - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_GRAY: - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row; - shift = 7; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x01) - == png_ptr->trans_color.gray) - { - unsigned int tmp = *sp & (0x7f7f >> (7 - shift)); - tmp |= png_ptr->background.gray << shift; - *sp = (png_byte)(tmp & 0xff); - } - - if (shift == 0) - { - shift = 7; - sp++; - } - - else - shift--; - } - break; - } - - case 2: - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_table != NULL) - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == png_ptr->trans_color.gray) - { - unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); - tmp |= png_ptr->background.gray << shift; - *sp = (png_byte)(tmp & 0xff); - } - - else - { - unsigned int p = (*sp >> shift) & 0x03; - unsigned int g = (gamma_table [p | (p << 2) | - (p << 4) | (p << 6)] >> 6) & 0x03; - unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); - tmp |= g << shift; - *sp = (png_byte)(tmp & 0xff); - } - - if (shift == 0) - { - shift = 6; - sp++; - } - - else - shift -= 2; - } - } - - else -#endif - { - sp = row; - shift = 6; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x03) - == png_ptr->trans_color.gray) - { - unsigned int tmp = *sp & (0x3f3f >> (6 - shift)); - tmp |= png_ptr->background.gray << shift; - *sp = (png_byte)(tmp & 0xff); - } - - if (shift == 0) - { - shift = 6; - sp++; - } - - else - shift -= 2; - } - } - break; - } - - case 4: - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_table != NULL) - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == png_ptr->trans_color.gray) - { - unsigned int tmp = *sp & (0xf0f >> (4 - shift)); - tmp |= png_ptr->background.gray << shift; - *sp = (png_byte)(tmp & 0xff); - } - - else - { - unsigned int p = (*sp >> shift) & 0x0f; - unsigned int g = (gamma_table[p | (p << 4)] >> 4) & - 0x0f; - unsigned int tmp = *sp & (0xf0f >> (4 - shift)); - tmp |= g << shift; - *sp = (png_byte)(tmp & 0xff); - } - - if (shift == 0) - { - shift = 4; - sp++; - } - - else - shift -= 4; - } - } - - else -#endif - { - sp = row; - shift = 4; - for (i = 0; i < row_width; i++) - { - if ((png_uint_16)((*sp >> shift) & 0x0f) - == png_ptr->trans_color.gray) - { - unsigned int tmp = *sp & (0xf0f >> (4 - shift)); - tmp |= png_ptr->background.gray << shift; - *sp = (png_byte)(tmp & 0xff); - } - - if (shift == 0) - { - shift = 4; - sp++; - } - - else - shift -= 4; - } - } - break; - } - - case 8: - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == png_ptr->trans_color.gray) - *sp = (png_byte)png_ptr->background.gray; - - else - *sp = gamma_table[*sp]; - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp++) - { - if (*sp == png_ptr->trans_color.gray) - *sp = (png_byte)png_ptr->background.gray; - } - } - break; - } - - case 16: - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - - if (v == png_ptr->trans_color.gray) - { - /* Background is already in screen gamma */ - *sp = (png_byte)((png_ptr->background.gray >> 8) - & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.gray - & 0xff); - } - - else - { - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 v; - - v = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - - if (v == png_ptr->trans_color.gray) - { - *sp = (png_byte)((png_ptr->background.gray >> 8) - & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.gray - & 0xff); - } - } - } - break; - } - - default: - break; - } - break; - } - - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == png_ptr->trans_color.red && - *(sp + 1) == png_ptr->trans_color.green && - *(sp + 2) == png_ptr->trans_color.blue) - { - *sp = (png_byte)png_ptr->background.red; - *(sp + 1) = (png_byte)png_ptr->background.green; - *(sp + 2) = (png_byte)png_ptr->background.blue; - } - - else - { - *sp = gamma_table[*sp]; - *(sp + 1) = gamma_table[*(sp + 1)]; - *(sp + 2) = gamma_table[*(sp + 2)]; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 3) - { - if (*sp == png_ptr->trans_color.red && - *(sp + 1) == png_ptr->trans_color.green && - *(sp + 2) == png_ptr->trans_color.blue) - { - *sp = (png_byte)png_ptr->background.red; - *(sp + 1) = (png_byte)png_ptr->background.green; - *(sp + 2) = (png_byte)png_ptr->background.blue; - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_16 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - - png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - - png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) - + *(sp + 5)); - - if (r == png_ptr->trans_color.red && - g == png_ptr->trans_color.green && - b == png_ptr->trans_color.blue) - { - /* Background is already in screen gamma */ - *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); - *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) - & 0xff); - *(sp + 3) = (png_byte)(png_ptr->background.green - & 0xff); - *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) - & 0xff); - *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); - } - - else - { - png_uint_16 v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(sp + 2) = (png_byte)((v >> 8) & 0xff); - *(sp + 3) = (png_byte)(v & 0xff); - - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(sp + 4) = (png_byte)((v >> 8) & 0xff); - *(sp + 5) = (png_byte)(v & 0xff); - } - } - } - - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 6) - { - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - - png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - - png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) - + *(sp + 5)); - - if (r == png_ptr->trans_color.red && - g == png_ptr->trans_color.green && - b == png_ptr->trans_color.blue) - { - *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); - *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) - & 0xff); - *(sp + 3) = (png_byte)(png_ptr->background.green - & 0xff); - *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) - & 0xff); - *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); - } - } - } - } - break; - } - - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_uint_16 a = *(sp + 1); - - if (a == 0xff) - *sp = gamma_table[*sp]; - - else if (a == 0) - { - /* Background is already in screen gamma */ - *sp = (png_byte)png_ptr->background.gray; - } - - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, png_ptr->background_1.gray); - if (optimize == 0) - w = gamma_from_1[w]; - *sp = w; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 2) - { - png_byte a = *(sp + 1); - - if (a == 0) - *sp = (png_byte)png_ptr->background.gray; - - else if (a < 0xff) - png_composite(*sp, *sp, a, png_ptr->background.gray); - } - } - } - else /* if (png_ptr->bit_depth == 16) */ - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 4) - { - png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - } - - else if (a == 0) - { - /* Background is already in screen gamma */ - *sp = (png_byte)((png_ptr->background.gray >> 8) - & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff); - } - - else - { - png_uint_16 g, v, w; - - g = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(v, g, a, png_ptr->background_1.gray); - if (optimize != 0) - w = v; - else - w = gamma_16_from_1[(v&0xff) >> gamma_shift][v >> 8]; - *sp = (png_byte)((w >> 8) & 0xff); - *(sp + 1) = (png_byte)(w & 0xff); - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 4) - { - png_uint_16 a = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - - if (a == 0) - { - *sp = (png_byte)((png_ptr->background.gray >> 8) - & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.gray & 0xff); - } - - else if (a < 0xffff) - { - png_uint_16 g, v; - - g = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_composite_16(v, g, a, png_ptr->background.gray); - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - } - } - } - } - break; - } - - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_to_1 != NULL && gamma_from_1 != NULL && - gamma_table != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 4) - { - png_byte a = *(sp + 3); - - if (a == 0xff) - { - *sp = gamma_table[*sp]; - *(sp + 1) = gamma_table[*(sp + 1)]; - *(sp + 2) = gamma_table[*(sp + 2)]; - } - - else if (a == 0) - { - /* Background is already in screen gamma */ - *sp = (png_byte)png_ptr->background.red; - *(sp + 1) = (png_byte)png_ptr->background.green; - *(sp + 2) = (png_byte)png_ptr->background.blue; - } - - else - { - png_byte v, w; - - v = gamma_to_1[*sp]; - png_composite(w, v, a, png_ptr->background_1.red); - if (optimize == 0) w = gamma_from_1[w]; - *sp = w; - - v = gamma_to_1[*(sp + 1)]; - png_composite(w, v, a, png_ptr->background_1.green); - if (optimize == 0) w = gamma_from_1[w]; - *(sp + 1) = w; - - v = gamma_to_1[*(sp + 2)]; - png_composite(w, v, a, png_ptr->background_1.blue); - if (optimize == 0) w = gamma_from_1[w]; - *(sp + 2) = w; - } - } - } - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 4) - { - png_byte a = *(sp + 3); - - if (a == 0) - { - *sp = (png_byte)png_ptr->background.red; - *(sp + 1) = (png_byte)png_ptr->background.green; - *(sp + 2) = (png_byte)png_ptr->background.blue; - } - - else if (a < 0xff) - { - png_composite(*sp, *sp, a, png_ptr->background.red); - - png_composite(*(sp + 1), *(sp + 1), a, - png_ptr->background.green); - - png_composite(*(sp + 2), *(sp + 2), a, - png_ptr->background.blue); - } - } - } - } - else /* if (row_info->bit_depth == 16) */ - { -#ifdef PNG_READ_GAMMA_SUPPORTED - if (gamma_16 != NULL && gamma_16_from_1 != NULL && - gamma_16_to_1 != NULL) - { - sp = row; - for (i = 0; i < row_width; i++, sp += 8) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - - if (a == (png_uint_16)0xffff) - { - png_uint_16 v; - - v = gamma_16[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - - v = gamma_16[*(sp + 3) >> gamma_shift][*(sp + 2)]; - *(sp + 2) = (png_byte)((v >> 8) & 0xff); - *(sp + 3) = (png_byte)(v & 0xff); - - v = gamma_16[*(sp + 5) >> gamma_shift][*(sp + 4)]; - *(sp + 4) = (png_byte)((v >> 8) & 0xff); - *(sp + 5) = (png_byte)(v & 0xff); - } - - else if (a == 0) - { - /* Background is already in screen gamma */ - *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); - *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) - & 0xff); - *(sp + 3) = (png_byte)(png_ptr->background.green - & 0xff); - *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) - & 0xff); - *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); - } - - else - { - png_uint_16 v, w; - - v = gamma_16_to_1[*(sp + 1) >> gamma_shift][*sp]; - png_composite_16(w, v, a, png_ptr->background_1.red); - if (optimize == 0) - w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> - 8]; - *sp = (png_byte)((w >> 8) & 0xff); - *(sp + 1) = (png_byte)(w & 0xff); - - v = gamma_16_to_1[*(sp + 3) >> gamma_shift][*(sp + 2)]; - png_composite_16(w, v, a, png_ptr->background_1.green); - if (optimize == 0) - w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> - 8]; - - *(sp + 2) = (png_byte)((w >> 8) & 0xff); - *(sp + 3) = (png_byte)(w & 0xff); - - v = gamma_16_to_1[*(sp + 5) >> gamma_shift][*(sp + 4)]; - png_composite_16(w, v, a, png_ptr->background_1.blue); - if (optimize == 0) - w = gamma_16_from_1[((w&0xff) >> gamma_shift)][w >> - 8]; - - *(sp + 4) = (png_byte)((w >> 8) & 0xff); - *(sp + 5) = (png_byte)(w & 0xff); - } - } - } - - else -#endif - { - sp = row; - for (i = 0; i < row_width; i++, sp += 8) - { - png_uint_16 a = (png_uint_16)(((png_uint_16)(*(sp + 6)) - << 8) + (png_uint_16)(*(sp + 7))); - - if (a == 0) - { - *sp = (png_byte)((png_ptr->background.red >> 8) & 0xff); - *(sp + 1) = (png_byte)(png_ptr->background.red & 0xff); - *(sp + 2) = (png_byte)((png_ptr->background.green >> 8) - & 0xff); - *(sp + 3) = (png_byte)(png_ptr->background.green - & 0xff); - *(sp + 4) = (png_byte)((png_ptr->background.blue >> 8) - & 0xff); - *(sp + 5) = (png_byte)(png_ptr->background.blue & 0xff); - } - - else if (a < 0xffff) - { - png_uint_16 v; - - png_uint_16 r = (png_uint_16)(((*sp) << 8) + *(sp + 1)); - png_uint_16 g = (png_uint_16)(((*(sp + 2)) << 8) - + *(sp + 3)); - png_uint_16 b = (png_uint_16)(((*(sp + 4)) << 8) - + *(sp + 5)); - - png_composite_16(v, r, a, png_ptr->background.red); - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - - png_composite_16(v, g, a, png_ptr->background.green); - *(sp + 2) = (png_byte)((v >> 8) & 0xff); - *(sp + 3) = (png_byte)(v & 0xff); - - png_composite_16(v, b, a, png_ptr->background.blue); - *(sp + 4) = (png_byte)((v >> 8) & 0xff); - *(sp + 5) = (png_byte)(v & 0xff); - } - } - } - } - break; - } - - default: - break; - } - } -} -#endif /* PNG_READ_BACKGROUND_SUPPORTED || PNG_READ_ALPHA_MODE_SUPPORTED */ - -#ifdef PNG_READ_GAMMA_SUPPORTED -/* Gamma correct the image, avoiding the alpha channel. Make sure - * you do this after you deal with the transparency issue on grayscale - * or RGB images. If your bit depth is 8, use gamma_table, if it - * is 16, use gamma_16_table and gamma_shift. Build these with - * build_gamma_table(). - */ -static void -png_do_gamma(png_row_infop row_info, png_bytep row, png_structrp png_ptr) -{ - png_const_bytep gamma_table = png_ptr->gamma_table; - png_const_uint_16pp gamma_16_table = png_ptr->gamma_16_table; - int gamma_shift = png_ptr->gamma_shift; - - png_bytep sp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_gamma"); - - if (((row_info->bit_depth <= 8 && gamma_table != NULL) || - (row_info->bit_depth == 16 && gamma_16_table != NULL))) - { - switch (row_info->color_type) - { - case PNG_COLOR_TYPE_RGB: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - *sp = gamma_table[*sp]; - sp++; - } - } - - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - - case PNG_COLOR_TYPE_RGB_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - - *sp = gamma_table[*sp]; - sp++; - - *sp = gamma_table[*sp]; - sp++; - - sp++; - } - } - - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - - v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - - case PNG_COLOR_TYPE_GRAY_ALPHA: - { - if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp += 2; - } - } - - else /* if (row_info->bit_depth == 16) */ - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 4; - } - } - break; - } - - case PNG_COLOR_TYPE_GRAY: - { - if (row_info->bit_depth == 2) - { - sp = row; - for (i = 0; i < row_width; i += 4) - { - int a = *sp & 0xc0; - int b = *sp & 0x30; - int c = *sp & 0x0c; - int d = *sp & 0x03; - - *sp = (png_byte)( - ((((int)gamma_table[a|(a>>2)|(a>>4)|(a>>6)]) ) & 0xc0)| - ((((int)gamma_table[(b<<2)|b|(b>>2)|(b>>4)])>>2) & 0x30)| - ((((int)gamma_table[(c<<4)|(c<<2)|c|(c>>2)])>>4) & 0x0c)| - ((((int)gamma_table[(d<<6)|(d<<4)|(d<<2)|d])>>6) )); - sp++; - } - } - - if (row_info->bit_depth == 4) - { - sp = row; - for (i = 0; i < row_width; i += 2) - { - int msb = *sp & 0xf0; - int lsb = *sp & 0x0f; - - *sp = (png_byte)((((int)gamma_table[msb | (msb >> 4)]) & 0xf0) - | (((int)gamma_table[(lsb << 4) | lsb]) >> 4)); - sp++; - } - } - - else if (row_info->bit_depth == 8) - { - sp = row; - for (i = 0; i < row_width; i++) - { - *sp = gamma_table[*sp]; - sp++; - } - } - - else if (row_info->bit_depth == 16) - { - sp = row; - for (i = 0; i < row_width; i++) - { - png_uint_16 v = gamma_16_table[*(sp + 1) >> gamma_shift][*sp]; - *sp = (png_byte)((v >> 8) & 0xff); - *(sp + 1) = (png_byte)(v & 0xff); - sp += 2; - } - } - break; - } - - default: - break; - } - } -} -#endif - -#ifdef PNG_READ_ALPHA_MODE_SUPPORTED -/* Encode the alpha channel to the output gamma (the input channel is always - * linear.) Called only with color types that have an alpha channel. Needs the - * from_1 tables. - */ -static void -png_do_encode_alpha(png_row_infop row_info, png_bytep row, png_structrp png_ptr) -{ - png_uint_32 row_width = row_info->width; - - png_debug(1, "in png_do_encode_alpha"); - - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - if (row_info->bit_depth == 8) - { - PNG_CONST png_bytep table = png_ptr->gamma_from_1; - - if (table != NULL) - { - PNG_CONST int step = - (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 4 : 2; - - /* The alpha channel is the last component: */ - row += step - 1; - - for (; row_width > 0; --row_width, row += step) - *row = table[*row]; - - return; - } - } - - else if (row_info->bit_depth == 16) - { - PNG_CONST png_uint_16pp table = png_ptr->gamma_16_from_1; - PNG_CONST int gamma_shift = png_ptr->gamma_shift; - - if (table != NULL) - { - PNG_CONST int step = - (row_info->color_type & PNG_COLOR_MASK_COLOR) ? 8 : 4; - - /* The alpha channel is the last component: */ - row += step - 2; - - for (; row_width > 0; --row_width, row += step) - { - png_uint_16 v; - - v = table[*(row + 1) >> gamma_shift][*row]; - *row = (png_byte)((v >> 8) & 0xff); - *(row + 1) = (png_byte)(v & 0xff); - } - - return; - } - } - } - - /* Only get to here if called with a weird row_info; no harm has been done, - * so just issue a warning. - */ - png_warning(png_ptr, "png_do_encode_alpha: unexpected call"); -} -#endif - -#ifdef PNG_READ_EXPAND_SUPPORTED -/* Expands a palette row to an RGB or RGBA row depending - * upon whether you supply trans and num_trans. - */ -static void -png_do_expand_palette(png_row_infop row_info, png_bytep row, - png_const_colorp palette, png_const_bytep trans_alpha, int num_trans) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand_palette"); - - if (row_info->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 1; - - else - *dp = 0; - - if (shift == 7) - { - shift = 0; - sp--; - } - - else - shift++; - - dp--; - } - break; - } - - case 2: - { - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)value; - if (shift == 6) - { - shift = 0; - sp--; - } - - else - shift += 2; - - dp--; - } - break; - } - - case 4: - { - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((row_width & 0x01) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)value; - if (shift == 4) - { - shift = 0; - sp--; - } - - else - shift += 4; - - dp--; - } - break; - } - - default: - break; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - - if (row_info->bit_depth == 8) - { - { - if (num_trans > 0) - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - - for (i = 0; i < row_width; i++) - { - if ((int)(*sp) >= num_trans) - *dp-- = 0xff; - - else - *dp-- = trans_alpha[*sp]; - - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - row_info->bit_depth = 8; - row_info->pixel_depth = 32; - row_info->rowbytes = row_width * 4; - row_info->color_type = 6; - row_info->channels = 4; - } - - else - { - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width * 3) - 1; - - for (i = 0; i < row_width; i++) - { - *dp-- = palette[*sp].blue; - *dp-- = palette[*sp].green; - *dp-- = palette[*sp].red; - sp--; - } - - row_info->bit_depth = 8; - row_info->pixel_depth = 24; - row_info->rowbytes = row_width * 3; - row_info->color_type = 2; - row_info->channels = 3; - } - } - } - } -} - -/* If the bit depth < 8, it is expanded to 8. Also, if the already - * expanded transparency value is supplied, an alpha channel is built. - */ -static void -png_do_expand(png_row_infop row_info, png_bytep row, - png_const_color_16p trans_color) -{ - int shift, value; - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_expand"); - - { - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - unsigned int gray = trans_color ? trans_color->gray : 0; - - if (row_info->bit_depth < 8) - { - switch (row_info->bit_depth) - { - case 1: - { - gray = (gray & 0x01) * 0xff; - sp = row + (png_size_t)((row_width - 1) >> 3); - dp = row + (png_size_t)row_width - 1; - shift = 7 - (int)((row_width + 7) & 0x07); - for (i = 0; i < row_width; i++) - { - if ((*sp >> shift) & 0x01) - *dp = 0xff; - - else - *dp = 0; - - if (shift == 7) - { - shift = 0; - sp--; - } - - else - shift++; - - dp--; - } - break; - } - - case 2: - { - gray = (gray & 0x03) * 0x55; - sp = row + (png_size_t)((row_width - 1) >> 2); - dp = row + (png_size_t)row_width - 1; - shift = (int)((3 - ((row_width + 3) & 0x03)) << 1); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x03; - *dp = (png_byte)(value | (value << 2) | (value << 4) | - (value << 6)); - if (shift == 6) - { - shift = 0; - sp--; - } - - else - shift += 2; - - dp--; - } - break; - } - - case 4: - { - gray = (gray & 0x0f) * 0x11; - sp = row + (png_size_t)((row_width - 1) >> 1); - dp = row + (png_size_t)row_width - 1; - shift = (int)((1 - ((row_width + 1) & 0x01)) << 2); - for (i = 0; i < row_width; i++) - { - value = (*sp >> shift) & 0x0f; - *dp = (png_byte)(value | (value << 4)); - if (shift == 4) - { - shift = 0; - sp--; - } - - else - shift = 4; - - dp--; - } - break; - } - - default: - break; - } - - row_info->bit_depth = 8; - row_info->pixel_depth = 8; - row_info->rowbytes = row_width; - } - - if (trans_color != NULL) - { - if (row_info->bit_depth == 8) - { - gray = gray & 0xff; - sp = row + (png_size_t)row_width - 1; - dp = row + (png_size_t)(row_width << 1) - 1; - - for (i = 0; i < row_width; i++) - { - if (*sp == gray) - *dp-- = 0; - - else - *dp-- = 0xff; - - *dp-- = *sp--; - } - } - - else if (row_info->bit_depth == 16) - { - unsigned int gray_high = (gray >> 8) & 0xff; - unsigned int gray_low = gray & 0xff; - sp = row + row_info->rowbytes - 1; - dp = row + (row_info->rowbytes << 1) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 1) == gray_high && *(sp) == gray_low) - { - *dp-- = 0; - *dp-- = 0; - } - - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - - *dp-- = *sp--; - *dp-- = *sp--; - } - } - - row_info->color_type = PNG_COLOR_TYPE_GRAY_ALPHA; - row_info->channels = 2; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 1); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_width); - } - } - else if (row_info->color_type == PNG_COLOR_TYPE_RGB && trans_color) - { - if (row_info->bit_depth == 8) - { - png_byte red = (png_byte)(trans_color->red & 0xff); - png_byte green = (png_byte)(trans_color->green & 0xff); - png_byte blue = (png_byte)(trans_color->blue & 0xff); - sp = row + (png_size_t)row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 2) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 2) == red && *(sp - 1) == green && *(sp) == blue) - *dp-- = 0; - - else - *dp-- = 0xff; - - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - else if (row_info->bit_depth == 16) - { - png_byte red_high = (png_byte)((trans_color->red >> 8) & 0xff); - png_byte green_high = (png_byte)((trans_color->green >> 8) & 0xff); - png_byte blue_high = (png_byte)((trans_color->blue >> 8) & 0xff); - png_byte red_low = (png_byte)(trans_color->red & 0xff); - png_byte green_low = (png_byte)(trans_color->green & 0xff); - png_byte blue_low = (png_byte)(trans_color->blue & 0xff); - sp = row + row_info->rowbytes - 1; - dp = row + (png_size_t)(row_width << 3) - 1; - for (i = 0; i < row_width; i++) - { - if (*(sp - 5) == red_high && - *(sp - 4) == red_low && - *(sp - 3) == green_high && - *(sp - 2) == green_low && - *(sp - 1) == blue_high && - *(sp ) == blue_low) - { - *dp-- = 0; - *dp-- = 0; - } - - else - { - *dp-- = 0xff; - *dp-- = 0xff; - } - - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - *dp-- = *sp--; - } - } - row_info->color_type = PNG_COLOR_TYPE_RGB_ALPHA; - row_info->channels = 4; - row_info->pixel_depth = (png_byte)(row_info->bit_depth << 2); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); - } - } -} -#endif - -#ifdef PNG_READ_EXPAND_16_SUPPORTED -/* If the bit depth is 8 and the color type is not a palette type expand the - * whole row to 16 bits. Has no effect otherwise. - */ -static void -png_do_expand_16(png_row_infop row_info, png_bytep row) -{ - if (row_info->bit_depth == 8 && - row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - /* The row have a sequence of bytes containing [0..255] and we need - * to turn it into another row containing [0..65535], to do this we - * calculate: - * - * (input / 255) * 65535 - * - * Which happens to be exactly input * 257 and this can be achieved - * simply by byte replication in place (copying backwards). - */ - png_byte *sp = row + row_info->rowbytes; /* source, last byte + 1 */ - png_byte *dp = sp + row_info->rowbytes; /* destination, end + 1 */ - while (dp > sp) - dp[-2] = dp[-1] = *--sp, dp -= 2; - - row_info->rowbytes *= 2; - row_info->bit_depth = 16; - row_info->pixel_depth = (png_byte)(row_info->channels * 16); - } -} -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED -static void -png_do_quantize(png_row_infop row_info, png_bytep row, - png_const_bytep palette_lookup, png_const_bytep quantize_lookup) -{ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width=row_info->width; - - png_debug(1, "in png_do_quantize"); - - if (row_info->bit_depth == 8) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB && palette_lookup) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - - /* This looks real messy, but the compiler will reduce - * it down to a reasonable formula. For example, with - * 5 bits per color, we get: - * p = (((r >> 3) & 0x1f) << 10) | - * (((g >> 3) & 0x1f) << 5) | - * ((b >> 3) & 0x1f); - */ - p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) & - ((1 << PNG_QUANTIZE_RED_BITS) - 1)) << - (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) | - (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) & - ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) << - (PNG_QUANTIZE_BLUE_BITS)) | - ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) & - ((1 << PNG_QUANTIZE_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); - } - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA && - palette_lookup != NULL) - { - int r, g, b, p; - sp = row; - dp = row; - for (i = 0; i < row_width; i++) - { - r = *sp++; - g = *sp++; - b = *sp++; - sp++; - - p = (((r >> (8 - PNG_QUANTIZE_RED_BITS)) & - ((1 << PNG_QUANTIZE_RED_BITS) - 1)) << - (PNG_QUANTIZE_GREEN_BITS + PNG_QUANTIZE_BLUE_BITS)) | - (((g >> (8 - PNG_QUANTIZE_GREEN_BITS)) & - ((1 << PNG_QUANTIZE_GREEN_BITS) - 1)) << - (PNG_QUANTIZE_BLUE_BITS)) | - ((b >> (8 - PNG_QUANTIZE_BLUE_BITS)) & - ((1 << PNG_QUANTIZE_BLUE_BITS) - 1)); - - *dp++ = palette_lookup[p]; - } - - row_info->color_type = PNG_COLOR_TYPE_PALETTE; - row_info->channels = 1; - row_info->pixel_depth = row_info->bit_depth; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_width); - } - - else if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && - quantize_lookup) - { - sp = row; - - for (i = 0; i < row_width; i++, sp++) - { - *sp = quantize_lookup[*sp]; - } - } - } -} -#endif /* PNG_READ_QUANTIZE_SUPPORTED */ - -/* Transform the row. The order of transformations is significant, - * and is very touchy. If you add a transformation, take care to - * decide how it fits in with the other transformations here. - */ -void /* PRIVATE */ -png_do_read_transformations(png_structrp png_ptr, png_row_infop row_info) -{ - png_debug(1, "in png_do_read_transformations"); - - if (png_ptr->row_buf == NULL) - { - /* Prior to 1.5.4 this output row/pass where the NULL pointer is, but this - * error is incredibly rare and incredibly easy to debug without this - * information. - */ - png_error(png_ptr, "NULL row buffer"); - } - - /* The following is debugging; prior to 1.5.4 the code was never compiled in; - * in 1.5.4 PNG_FLAG_DETECT_UNINITIALIZED was added and the macro - * PNG_WARN_UNINITIALIZED_ROW removed. In 1.6 the new flag is set only for - * all transformations, however in practice the ROW_INIT always gets done on - * demand, if necessary. - */ - if ((png_ptr->flags & PNG_FLAG_DETECT_UNINITIALIZED) != 0 && - !(png_ptr->flags & PNG_FLAG_ROW_INIT)) - { - /* Application has failed to call either png_read_start_image() or - * png_read_update_info() after setting transforms that expand pixels. - * This check added to libpng-1.2.19 (but not enabled until 1.5.4). - */ - png_error(png_ptr, "Uninitialized row"); - } - -#ifdef PNG_READ_EXPAND_SUPPORTED - if (png_ptr->transformations & PNG_EXPAND) - { - if (row_info->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_do_expand_palette(row_info, png_ptr->row_buf + 1, - png_ptr->palette, png_ptr->trans_alpha, png_ptr->num_trans); - } - - else - { - if (png_ptr->num_trans && - (png_ptr->transformations & PNG_EXPAND_tRNS)) - png_do_expand(row_info, png_ptr->row_buf + 1, - &(png_ptr->trans_color)); - - else - png_do_expand(row_info, png_ptr->row_buf + 1, - NULL); - } - } -#endif - -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED - if ((png_ptr->transformations & PNG_STRIP_ALPHA) && - !(png_ptr->transformations & PNG_COMPOSE) && - (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) - png_do_strip_channel(row_info, png_ptr->row_buf + 1, - 0 /* at_start == false, because SWAP_ALPHA happens later */); -#endif - -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - if (png_ptr->transformations & PNG_RGB_TO_GRAY) - { - int rgb_error = - png_do_rgb_to_gray(png_ptr, row_info, - png_ptr->row_buf + 1); - - if (rgb_error != 0) - { - png_ptr->rgb_to_gray_status=1; - if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == - PNG_RGB_TO_GRAY_WARN) - png_warning(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - - if ((png_ptr->transformations & PNG_RGB_TO_GRAY) == - PNG_RGB_TO_GRAY_ERR) - png_error(png_ptr, "png_do_rgb_to_gray found nongray pixel"); - } - } -#endif - -/* From Andreas Dilger e-mail to png-implement, 26 March 1998: - * - * In most cases, the "simple transparency" should be done prior to doing - * gray-to-RGB, or you will have to test 3x as many bytes to check if a - * pixel is transparent. You would also need to make sure that the - * transparency information is upgraded to RGB. - * - * To summarize, the current flow is: - * - Gray + simple transparency -> compare 1 or 2 gray bytes and composite - * with background "in place" if transparent, - * convert to RGB if necessary - * - Gray + alpha -> composite with gray background and remove alpha bytes, - * convert to RGB if necessary - * - * To support RGB backgrounds for gray images we need: - * - Gray + simple transparency -> convert to RGB + simple transparency, - * compare 3 or 6 bytes and composite with - * background "in place" if transparent - * (3x compare/pixel compared to doing - * composite with gray bkgrnd) - * - Gray + alpha -> convert to RGB + alpha, composite with background and - * remove alpha bytes (3x float - * operations/pixel compared with composite - * on gray background) - * - * Greg's change will do this. The reason it wasn't done before is for - * performance, as this increases the per-pixel operations. If we would check - * in advance if the background was gray or RGB, and position the gray-to-RGB - * transform appropriately, then it would save a lot of work/time. - */ - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED - /* If gray -> RGB, do so now only if background is non-gray; else do later - * for performance reasons - */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - !(png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1); -#endif - -#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) - if (png_ptr->transformations & PNG_COMPOSE) - png_do_compose(row_info, png_ptr->row_buf + 1, png_ptr); -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED - if ((png_ptr->transformations & PNG_GAMMA) && -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - /* Because RGB_TO_GRAY does the gamma transform. */ - !(png_ptr->transformations & PNG_RGB_TO_GRAY) && -#endif -#if defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) - /* Because PNG_COMPOSE does the gamma transform if there is something to - * do (if there is an alpha channel or transparency.) - */ - !((png_ptr->transformations & PNG_COMPOSE) && - ((png_ptr->num_trans != 0) || - (png_ptr->color_type & PNG_COLOR_MASK_ALPHA))) && -#endif - /* Because png_init_read_transformations transforms the palette, unless - * RGB_TO_GRAY will do the transform. - */ - (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)) - png_do_gamma(row_info, png_ptr->row_buf + 1, png_ptr); -#endif - -#ifdef PNG_READ_STRIP_ALPHA_SUPPORTED - if ((png_ptr->transformations & PNG_STRIP_ALPHA) && - (png_ptr->transformations & PNG_COMPOSE) && - (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA || - row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) - png_do_strip_channel(row_info, png_ptr->row_buf + 1, - 0 /* at_start == false, because SWAP_ALPHA happens later */); -#endif - -#ifdef PNG_READ_ALPHA_MODE_SUPPORTED - if ((png_ptr->transformations & PNG_ENCODE_ALPHA) && - (row_info->color_type & PNG_COLOR_MASK_ALPHA)) - png_do_encode_alpha(row_info, png_ptr->row_buf + 1, png_ptr); -#endif - -#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED - if (png_ptr->transformations & PNG_SCALE_16_TO_8) - png_do_scale_16_to_8(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_STRIP_16_TO_8_SUPPORTED - /* There is no harm in doing both of these because only one has any effect, - * by putting the 'scale' option first if the app asks for scale (either by - * calling the API or in a TRANSFORM flag) this is what happens. - */ - if (png_ptr->transformations & PNG_16_TO_8) - png_do_chop(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED - if (png_ptr->transformations & PNG_QUANTIZE) - { - png_do_quantize(row_info, png_ptr->row_buf + 1, - png_ptr->palette_lookup, png_ptr->quantize_index); - - if (row_info->rowbytes == 0) - png_error(png_ptr, "png_do_quantize returned rowbytes=0"); - } -#endif /* PNG_READ_QUANTIZE_SUPPORTED */ - -#ifdef PNG_READ_EXPAND_16_SUPPORTED - /* Do the expansion now, after all the arithmetic has been done. Notice - * that previous transformations can handle the PNG_EXPAND_16 flag if this - * is efficient (particularly true in the case of gamma correction, where - * better accuracy results faster!) - */ - if (png_ptr->transformations & PNG_EXPAND_16) - png_do_expand_16(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED - /* NOTE: moved here in 1.5.4 (from much later in this list.) */ - if ((png_ptr->transformations & PNG_GRAY_TO_RGB) && - (png_ptr->mode & PNG_BACKGROUND_IS_GRAY)) - png_do_gray_to_rgb(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_INVERT_SUPPORTED - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_INVERT_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_read_invert_alpha(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_SHIFT_SUPPORTED - if (png_ptr->transformations & PNG_SHIFT) - png_do_unshift(row_info, png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif - -#ifdef PNG_READ_PACK_SUPPORTED - if (png_ptr->transformations & PNG_PACK) - png_do_unpack(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED - /* Added at libpng-1.5.10 */ - if (row_info->color_type == PNG_COLOR_TYPE_PALETTE && - png_ptr->num_palette_max >= 0) - png_do_check_palette_indexes(png_ptr, row_info); -#endif - -#ifdef PNG_READ_BGR_SUPPORTED - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_PACKSWAP_SUPPORTED - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_FILLER_SUPPORTED - if (png_ptr->transformations & PNG_FILLER) - png_do_read_filler(row_info, png_ptr->row_buf + 1, - (png_uint_32)png_ptr->filler, png_ptr->flags); -#endif - -#ifdef PNG_READ_SWAP_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_read_swap_alpha(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_READ_16BIT_SUPPORTED -#ifdef PNG_READ_SWAP_SUPPORTED - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(row_info, png_ptr->row_buf + 1); -#endif -#endif - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - if (png_ptr->transformations & PNG_USER_TRANSFORM) - { - if (png_ptr->read_user_transform_fn != NULL) - (*(png_ptr->read_user_transform_fn)) /* User read transform function */ - (png_ptr, /* png_ptr */ - row_info, /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_size_t rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED - if (png_ptr->user_transform_depth) - row_info->bit_depth = png_ptr->user_transform_depth; - - if (png_ptr->user_transform_channels) - row_info->channels = png_ptr->user_transform_channels; -#endif - row_info->pixel_depth = (png_byte)(row_info->bit_depth * - row_info->channels); - - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, row_info->width); - } -#endif -} - -#endif /* PNG_READ_TRANSFORMS_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngrutil.c b/png/pngrutil.c deleted file mode 100755 index cc52202..0000000 --- a/png/pngrutil.c +++ /dev/null @@ -1,4469 +0,0 @@ - -/* pngrutil.c - utilities to read a PNG file - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file contains routines that are only called from within - * libpng itself during the course of reading an image. - */ - -#include "pngpriv.h" - -#ifdef PNG_READ_SUPPORTED - -png_uint_32 PNGAPI -png_get_uint_31(png_const_structrp png_ptr, png_const_bytep buf) -{ - png_uint_32 uval = png_get_uint_32(buf); - - if (uval > PNG_UINT_31_MAX) - png_error(png_ptr, "PNG unsigned integer out of range"); - - return (uval); -} - -#if defined(PNG_READ_gAMA_SUPPORTED) || defined(PNG_READ_cHRM_SUPPORTED) -/* The following is a variation on the above for use with the fixed - * point values used for gAMA and cHRM. Instead of png_error it - * issues a warning and returns (-1) - an invalid value because both - * gAMA and cHRM use *unsigned* integers for fixed point values. - */ -#define PNG_FIXED_ERROR (-1) - -static png_fixed_point /* PRIVATE */ -png_get_fixed_point(png_structrp png_ptr, png_const_bytep buf) -{ - png_uint_32 uval = png_get_uint_32(buf); - - if (uval <= PNG_UINT_31_MAX) - return (png_fixed_point)uval; /* known to be in range */ - - /* The caller can turn off the warning by passing NULL. */ - if (png_ptr != NULL) - png_warning(png_ptr, "PNG fixed point integer out of range"); - - return PNG_FIXED_ERROR; -} -#endif - -#ifdef PNG_READ_INT_FUNCTIONS_SUPPORTED -/* NOTE: the read macros will obscure these definitions, so that if - * PNG_USE_READ_MACROS is set the library will not use them internally, - * but the APIs will still be available externally. - * - * The parentheses around "PNGAPI function_name" in the following three - * functions are necessary because they allow the macros to co-exist with - * these (unused but exported) functions. - */ - -/* Grab an unsigned 32-bit integer from a buffer in big-endian format. */ -png_uint_32 (PNGAPI -png_get_uint_32)(png_const_bytep buf) -{ - png_uint_32 uval = - ((png_uint_32)(*(buf )) << 24) + - ((png_uint_32)(*(buf + 1)) << 16) + - ((png_uint_32)(*(buf + 2)) << 8) + - ((png_uint_32)(*(buf + 3)) ) ; - - return uval; -} - -/* Grab a signed 32-bit integer from a buffer in big-endian format. The - * data is stored in the PNG file in two's complement format and there - * is no guarantee that a 'png_int_32' is exactly 32 bits, therefore - * the following code does a two's complement to native conversion. - */ -png_int_32 (PNGAPI -png_get_int_32)(png_const_bytep buf) -{ - png_uint_32 uval = png_get_uint_32(buf); - if ((uval & 0x80000000) == 0) /* non-negative */ - return uval; - - uval = (uval ^ 0xffffffff) + 1; /* 2's complement: -x = ~x+1 */ - return -(png_int_32)uval; -} - -/* Grab an unsigned 16-bit integer from a buffer in big-endian format. */ -png_uint_16 (PNGAPI -png_get_uint_16)(png_const_bytep buf) -{ - /* ANSI-C requires an int value to accomodate at least 16 bits so this - * works and allows the compiler not to worry about possible narrowing - * on 32 bit systems. (Pre-ANSI systems did not make integers smaller - * than 16 bits either.) - */ - unsigned int val = - ((unsigned int)(*buf) << 8) + - ((unsigned int)(*(buf + 1))); - - return (png_uint_16)val; -} - -#endif /* PNG_READ_INT_FUNCTIONS_SUPPORTED */ - -/* Read and check the PNG file signature */ -void /* PRIVATE */ -png_read_sig(png_structrp png_ptr, png_inforp info_ptr) -{ - png_size_t num_checked, num_to_check; - - /* Exit if the user application does not expect a signature. */ - if (png_ptr->sig_bytes >= 8) - return; - - num_checked = png_ptr->sig_bytes; - num_to_check = 8 - num_checked; - -#ifdef PNG_IO_STATE_SUPPORTED - png_ptr->io_state = PNG_IO_READING | PNG_IO_SIGNATURE; -#endif - - /* The signature must be serialized in a single I/O call. */ - png_read_data(png_ptr, &(info_ptr->signature[num_checked]), num_to_check); - png_ptr->sig_bytes = 8; - - if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check)) - { - if (num_checked < 4 && - png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4)) - png_error(png_ptr, "Not a PNG file"); - else - png_error(png_ptr, "PNG file corrupted by ASCII conversion"); - } - if (num_checked < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; -} - -/* Read the chunk header (length + type name). - * Put the type name into png_ptr->chunk_name, and return the length. - */ -png_uint_32 /* PRIVATE */ -png_read_chunk_header(png_structrp png_ptr) -{ - png_byte buf[8]; - png_uint_32 length; - -#ifdef PNG_IO_STATE_SUPPORTED - png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_HDR; -#endif - - /* Read the length and the chunk name. - * This must be performed in a single I/O call. - */ - png_read_data(png_ptr, buf, 8); - length = png_get_uint_31(png_ptr, buf); - - /* Put the chunk name into png_ptr->chunk_name. */ - png_ptr->chunk_name = PNG_CHUNK_FROM_STRING(buf+4); - - png_debug2(0, "Reading %lx chunk, length = %lu", - (unsigned long)png_ptr->chunk_name, (unsigned long)length); - - /* Reset the crc and run it over the chunk name. */ - png_reset_crc(png_ptr); - png_calculate_crc(png_ptr, buf + 4, 4); - - /* Check to see if chunk name is valid. */ - png_check_chunk_name(png_ptr, png_ptr->chunk_name); - -#ifdef PNG_IO_STATE_SUPPORTED - png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_DATA; -#endif - - return length; -} - -/* Read data, and (optionally) run it through the CRC. */ -void /* PRIVATE */ -png_crc_read(png_structrp png_ptr, png_bytep buf, png_uint_32 length) -{ - if (png_ptr == NULL) - return; - - png_read_data(png_ptr, buf, length); - png_calculate_crc(png_ptr, buf, length); -} - -/* Optionally skip data and then check the CRC. Depending on whether we - * are reading an ancillary or critical chunk, and how the program has set - * things up, we may calculate the CRC on the data and print a message. - * Returns '1' if there was a CRC error, '0' otherwise. - */ -int /* PRIVATE */ -png_crc_finish(png_structrp png_ptr, png_uint_32 skip) -{ - /* The size of the local buffer for inflate is a good guess as to a - * reasonable size to use for buffering reads from the application. - */ - while (skip > 0) - { - png_uint_32 len; - png_byte tmpbuf[PNG_INFLATE_BUF_SIZE]; - - len = (sizeof tmpbuf); - if (len > skip) - len = skip; - skip -= len; - - png_crc_read(png_ptr, tmpbuf, len); - } - - if (png_crc_error(png_ptr)) - { - if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name) ? - !(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) : - (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_USE)) - { - png_chunk_warning(png_ptr, "CRC error"); - } - - else - png_chunk_error(png_ptr, "CRC error"); - - return (1); - } - - return (0); -} - -/* Compare the CRC stored in the PNG file with that calculated by libpng from - * the data it has read thus far. - */ -int /* PRIVATE */ -png_crc_error(png_structrp png_ptr) -{ - png_byte crc_bytes[4]; - png_uint_32 crc; - int need_crc = 1; - - if (PNG_CHUNK_ANCILLARY(png_ptr->chunk_name)) - { - if ((png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_MASK) == - (PNG_FLAG_CRC_ANCILLARY_USE | PNG_FLAG_CRC_ANCILLARY_NOWARN)) - need_crc = 0; - } - - else /* critical */ - { - if (png_ptr->flags & PNG_FLAG_CRC_CRITICAL_IGNORE) - need_crc = 0; - } - -#ifdef PNG_IO_STATE_SUPPORTED - png_ptr->io_state = PNG_IO_READING | PNG_IO_CHUNK_CRC; -#endif - - /* The chunk CRC must be serialized in a single I/O call. */ - png_read_data(png_ptr, crc_bytes, 4); - - if (need_crc != 0) - { - crc = png_get_uint_32(crc_bytes); - return ((int)(crc != png_ptr->crc)); - } - - else - return (0); -} - -#if defined(PNG_READ_iCCP_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) ||\ - defined(PNG_READ_pCAL_SUPPORTED) || defined(PNG_READ_sCAL_SUPPORTED) ||\ - defined(PNG_READ_sPLT_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) ||\ - defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_SEQUENTIAL_READ_SUPPORTED) -/* Manage the read buffer; this simply reallocates the buffer if it is not small - * enough (or if it is not allocated). The routine returns a pointer to the - * buffer; if an error occurs and 'warn' is set the routine returns NULL, else - * it will call png_error (via png_malloc) on failure. (warn == 2 means - * 'silent'). - */ -static png_bytep -png_read_buffer(png_structrp png_ptr, png_alloc_size_t new_size, int warn) -{ - png_bytep buffer = png_ptr->read_buffer; - - if (buffer != NULL && new_size > png_ptr->read_buffer_size) - { - png_ptr->read_buffer = NULL; - png_ptr->read_buffer = NULL; - png_ptr->read_buffer_size = 0; - png_free(png_ptr, buffer); - buffer = NULL; - } - - if (buffer == NULL) - { - buffer = png_voidcast(png_bytep, png_malloc_base(png_ptr, new_size)); - - if (buffer != NULL) - { - png_ptr->read_buffer = buffer; - png_ptr->read_buffer_size = new_size; - } - - else if (warn < 2) /* else silent */ - { - if (warn != 0) - png_chunk_warning(png_ptr, "insufficient memory to read chunk"); - - else - png_chunk_error(png_ptr, "insufficient memory to read chunk"); - } - } - - return buffer; -} -#endif /* PNG_READ_iCCP|iTXt|pCAL|sCAL|sPLT|tEXt|zTXt|SEQUENTIAL_READ */ - -/* png_inflate_claim: claim the zstream for some nefarious purpose that involves - * decompression. Returns Z_OK on success, else a zlib error code. It checks - * the owner but, in final release builds, just issues a warning if some other - * chunk apparently owns the stream. Prior to release it does a png_error. - */ -static int -png_inflate_claim(png_structrp png_ptr, png_uint_32 owner) -{ - if (png_ptr->zowner != 0) - { - char msg[64]; - - PNG_STRING_FROM_CHUNK(msg, png_ptr->zowner); - /* So the message that results is " using zstream"; this is an - * internal error, but is very useful for debugging. i18n requirements - * are minimal. - */ - (void)png_safecat(msg, (sizeof msg), 4, " using zstream"); -# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC - png_chunk_warning(png_ptr, msg); - png_ptr->zowner = 0; -# else - png_chunk_error(png_ptr, msg); -# endif - } - - /* Implementation note: unlike 'png_deflate_claim' this internal function - * does not take the size of the data as an argument. Some efficiency could - * be gained by using this when it is known *if* the zlib stream itself does - * not record the number; however, this is an illusion: the original writer - * of the PNG may have selected a lower window size, and we really must - * follow that because, for systems with with limited capabilities, we - * would otherwise reject the application's attempts to use a smaller window - * size (zlib doesn't have an interface to say "this or lower"!). - * - * inflateReset2 was added to zlib 1.2.4; before this the window could not be - * reset, therefore it is necessary to always allocate the maximum window - * size with earlier zlibs just in case later compressed chunks need it. - */ - { - int ret; /* zlib return code */ -# if PNG_ZLIB_VERNUM >= 0x1240 - -# if defined(PNG_SET_OPTION_SUPPORTED) && \ - defined(PNG_MAXIMUM_INFLATE_WINDOW) - int window_bits; - - if (((png_ptr->options >> PNG_MAXIMUM_INFLATE_WINDOW) & 3) == - PNG_OPTION_ON) - window_bits = 15; - - else - window_bits = 0; -# else -# define window_bits 0 -# endif -# endif - - /* Set this for safety, just in case the previous owner left pointers to - * memory allocations. - */ - png_ptr->zstream.next_in = NULL; - png_ptr->zstream.avail_in = 0; - png_ptr->zstream.next_out = NULL; - png_ptr->zstream.avail_out = 0; - - if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) - { -# if PNG_ZLIB_VERNUM < 0x1240 - ret = inflateReset(&png_ptr->zstream); -# else - ret = inflateReset2(&png_ptr->zstream, window_bits); -# endif - } - - else - { -# if PNG_ZLIB_VERNUM < 0x1240 - ret = inflateInit(&png_ptr->zstream); -# else - ret = inflateInit2(&png_ptr->zstream, window_bits); -# endif - - if (ret == Z_OK) - png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; - } - - if (ret == Z_OK) - png_ptr->zowner = owner; - - else - png_zstream_error(png_ptr, ret); - - return ret; - } - -# ifdef window_bits -# undef window_bits -# endif -} - -#ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED -/* png_inflate now returns zlib error codes including Z_OK and Z_STREAM_END to - * allow the caller to do multiple calls if required. If the 'finish' flag is - * set Z_FINISH will be passed to the final inflate() call and Z_STREAM_END must - * be returned or there has been a problem, otherwise Z_SYNC_FLUSH is used and - * Z_OK or Z_STREAM_END will be returned on success. - * - * The input and output sizes are updated to the actual amounts of data consumed - * or written, not the amount available (as in a z_stream). The data pointers - * are not changed, so the next input is (data+input_size) and the next - * available output is (output+output_size). - */ -static int -png_inflate(png_structrp png_ptr, png_uint_32 owner, int finish, - /* INPUT: */ png_const_bytep input, png_uint_32p input_size_ptr, - /* OUTPUT: */ png_bytep output, png_alloc_size_t *output_size_ptr) -{ - if (png_ptr->zowner == owner) /* Else not claimed */ - { - int ret; - png_alloc_size_t avail_out = *output_size_ptr; - png_uint_32 avail_in = *input_size_ptr; - - /* zlib can't necessarily handle more than 65535 bytes at once (i.e. it - * can't even necessarily handle 65536 bytes) because the type uInt is - * "16 bits or more". Consequently it is necessary to chunk the input to - * zlib. This code uses ZLIB_IO_MAX, from pngpriv.h, as the maximum (the - * maximum value that can be stored in a uInt.) It is possible to set - * ZLIB_IO_MAX to a lower value in pngpriv.h and this may sometimes have - * a performance advantage, because it reduces the amount of data accessed - * at each step and that may give the OS more time to page it in. - */ - png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input); - /* avail_in and avail_out are set below from 'size' */ - png_ptr->zstream.avail_in = 0; - png_ptr->zstream.avail_out = 0; - - /* Read directly into the output if it is available (this is set to - * a local buffer below if output is NULL). - */ - if (output != NULL) - png_ptr->zstream.next_out = output; - - do - { - uInt avail; - Byte local_buffer[PNG_INFLATE_BUF_SIZE]; - - /* zlib INPUT BUFFER */ - /* The setting of 'avail_in' used to be outside the loop; by setting it - * inside it is possible to chunk the input to zlib and simply rely on - * zlib to advance the 'next_in' pointer. This allows arbitrary - * amounts of data to be passed through zlib at the unavoidable cost of - * requiring a window save (memcpy of up to 32768 output bytes) - * every ZLIB_IO_MAX input bytes. - */ - avail_in += png_ptr->zstream.avail_in; /* not consumed last time */ - - avail = ZLIB_IO_MAX; - - if (avail_in < avail) - avail = (uInt)avail_in; /* safe: < than ZLIB_IO_MAX */ - - avail_in -= avail; - png_ptr->zstream.avail_in = avail; - - /* zlib OUTPUT BUFFER */ - avail_out += png_ptr->zstream.avail_out; /* not written last time */ - - avail = ZLIB_IO_MAX; /* maximum zlib can process */ - - if (output == NULL) - { - /* Reset the output buffer each time round if output is NULL and - * make available the full buffer, up to 'remaining_space' - */ - png_ptr->zstream.next_out = local_buffer; - if ((sizeof local_buffer) < avail) - avail = (sizeof local_buffer); - } - - if (avail_out < avail) - avail = (uInt)avail_out; /* safe: < ZLIB_IO_MAX */ - - png_ptr->zstream.avail_out = avail; - avail_out -= avail; - - /* zlib inflate call */ - /* In fact 'avail_out' may be 0 at this point, that happens at the end - * of the read when the final LZ end code was not passed at the end of - * the previous chunk of input data. Tell zlib if we have reached the - * end of the output buffer. - */ - ret = inflate(&png_ptr->zstream, avail_out > 0 ? Z_NO_FLUSH : - (finish ? Z_FINISH : Z_SYNC_FLUSH)); - } while (ret == Z_OK); - - /* For safety kill the local buffer pointer now */ - if (output == NULL) - png_ptr->zstream.next_out = NULL; - - /* Claw back the 'size' and 'remaining_space' byte counts. */ - avail_in += png_ptr->zstream.avail_in; - avail_out += png_ptr->zstream.avail_out; - - /* Update the input and output sizes; the updated values are the amount - * consumed or written, effectively the inverse of what zlib uses. - */ - if (avail_out > 0) - *output_size_ptr -= avail_out; - - if (avail_in > 0) - *input_size_ptr -= avail_in; - - /* Ensure png_ptr->zstream.msg is set (even in the success case!) */ - png_zstream_error(png_ptr, ret); - return ret; - } - - else - { - /* This is a bad internal error. The recovery assigns to the zstream msg - * pointer, which is not owned by the caller, but this is safe; it's only - * used on errors! - */ - png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed"); - return Z_STREAM_ERROR; - } -} - -/* - * Decompress trailing data in a chunk. The assumption is that read_buffer - * points at an allocated area holding the contents of a chunk with a - * trailing compressed part. What we get back is an allocated area - * holding the original prefix part and an uncompressed version of the - * trailing part (the malloc area passed in is freed). - */ -static int -png_decompress_chunk(png_structrp png_ptr, - png_uint_32 chunklength, png_uint_32 prefix_size, - png_alloc_size_t *newlength /* must be initialized to the maximum! */, - int terminate /*add a '\0' to the end of the uncompressed data*/) -{ - /* TODO: implement different limits for different types of chunk. - * - * The caller supplies *newlength set to the maximum length of the - * uncompressed data, but this routine allocates space for the prefix and - * maybe a '\0' terminator too. We have to assume that 'prefix_size' is - * limited only by the maximum chunk size. - */ - png_alloc_size_t limit = PNG_SIZE_MAX; - -# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED - if (png_ptr->user_chunk_malloc_max > 0 && - png_ptr->user_chunk_malloc_max < limit) - limit = png_ptr->user_chunk_malloc_max; -# elif PNG_USER_CHUNK_MALLOC_MAX > 0 - if (PNG_USER_CHUNK_MALLOC_MAX < limit) - limit = PNG_USER_CHUNK_MALLOC_MAX; -# endif - - if (limit >= prefix_size + (terminate != 0)) - { - int ret; - - limit -= prefix_size + (terminate != 0); - - if (limit < *newlength) - *newlength = limit; - - /* Now try to claim the stream. */ - ret = png_inflate_claim(png_ptr, png_ptr->chunk_name); - - if (ret == Z_OK) - { - png_uint_32 lzsize = chunklength - prefix_size; - - ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/, - /* input: */ png_ptr->read_buffer + prefix_size, &lzsize, - /* output: */ NULL, newlength); - - if (ret == Z_STREAM_END) - { - /* Use 'inflateReset' here, not 'inflateReset2' because this - * preserves the previously decided window size (otherwise it would - * be necessary to store the previous window size.) In practice - * this doesn't matter anyway, because png_inflate will call inflate - * with Z_FINISH in almost all cases, so the window will not be - * maintained. - */ - if (inflateReset(&png_ptr->zstream) == Z_OK) - { - /* Because of the limit checks above we know that the new, - * expanded, size will fit in a size_t (let alone an - * png_alloc_size_t). Use png_malloc_base here to avoid an - * extra OOM message. - */ - png_alloc_size_t new_size = *newlength; - png_alloc_size_t buffer_size = prefix_size + new_size + - (terminate != 0); - png_bytep text = png_voidcast(png_bytep, png_malloc_base(png_ptr, - buffer_size)); - - if (text != NULL) - { - ret = png_inflate(png_ptr, png_ptr->chunk_name, 1/*finish*/, - png_ptr->read_buffer + prefix_size, &lzsize, - text + prefix_size, newlength); - - if (ret == Z_STREAM_END) - { - if (new_size == *newlength) - { - if (terminate != 0) - text[prefix_size + *newlength] = 0; - - if (prefix_size > 0) - memcpy(text, png_ptr->read_buffer, prefix_size); - - { - png_bytep old_ptr = png_ptr->read_buffer; - - png_ptr->read_buffer = text; - png_ptr->read_buffer_size = buffer_size; - text = old_ptr; /* freed below */ - } - } - - else - { - /* The size changed on the second read, there can be no - * guarantee that anything is correct at this point. - * The 'msg' pointer has been set to "unexpected end of - * LZ stream", which is fine, but return an error code - * that the caller won't accept. - */ - ret = PNG_UNEXPECTED_ZLIB_RETURN; - } - } - - else if (ret == Z_OK) - ret = PNG_UNEXPECTED_ZLIB_RETURN; /* for safety */ - - /* Free the text pointer (this is the old read_buffer on - * success) - */ - png_free(png_ptr, text); - - /* This really is very benign, but it's still an error because - * the extra space may otherwise be used as a Trojan Horse. - */ - if (ret == Z_STREAM_END && - chunklength - prefix_size != lzsize) - png_chunk_benign_error(png_ptr, "extra compressed data"); - } - - else - { - /* Out of memory allocating the buffer */ - ret = Z_MEM_ERROR; - png_zstream_error(png_ptr, Z_MEM_ERROR); - } - } - - else - { - /* inflateReset failed, store the error message */ - png_zstream_error(png_ptr, ret); - - if (ret == Z_STREAM_END) - ret = PNG_UNEXPECTED_ZLIB_RETURN; - } - } - - else if (ret == Z_OK) - ret = PNG_UNEXPECTED_ZLIB_RETURN; - - /* Release the claimed stream */ - png_ptr->zowner = 0; - } - - else /* the claim failed */ if (ret == Z_STREAM_END) /* impossible! */ - ret = PNG_UNEXPECTED_ZLIB_RETURN; - - return ret; - } - - else - { - /* Application/configuration limits exceeded */ - png_zstream_error(png_ptr, Z_MEM_ERROR); - return Z_MEM_ERROR; - } -} -#endif /* PNG_READ_COMPRESSED_TEXT_SUPPORTED */ - -#ifdef PNG_READ_iCCP_SUPPORTED -/* Perform a partial read and decompress, producing 'avail_out' bytes and - * reading from the current chunk as required. - */ -static int -png_inflate_read(png_structrp png_ptr, png_bytep read_buffer, uInt read_size, - png_uint_32p chunk_bytes, png_bytep next_out, png_alloc_size_t *out_size, - int finish) -{ - if (png_ptr->zowner == png_ptr->chunk_name) - { - int ret; - - /* next_in and avail_in must have been initialized by the caller. */ - png_ptr->zstream.next_out = next_out; - png_ptr->zstream.avail_out = 0; /* set in the loop */ - - do - { - if (png_ptr->zstream.avail_in == 0) - { - if (read_size > *chunk_bytes) - read_size = (uInt)*chunk_bytes; - *chunk_bytes -= read_size; - - if (read_size > 0) - png_crc_read(png_ptr, read_buffer, read_size); - - png_ptr->zstream.next_in = read_buffer; - png_ptr->zstream.avail_in = read_size; - } - - if (png_ptr->zstream.avail_out == 0) - { - uInt avail = ZLIB_IO_MAX; - if (avail > *out_size) - avail = (uInt)*out_size; - *out_size -= avail; - - png_ptr->zstream.avail_out = avail; - } - - /* Use Z_SYNC_FLUSH when there is no more chunk data to ensure that all - * the available output is produced; this allows reading of truncated - * streams. - */ - ret = inflate(&png_ptr->zstream, - *chunk_bytes > 0 ? Z_NO_FLUSH : (finish ? Z_FINISH : Z_SYNC_FLUSH)); - } - while (ret == Z_OK && (*out_size > 0 || png_ptr->zstream.avail_out > 0)); - - *out_size += png_ptr->zstream.avail_out; - png_ptr->zstream.avail_out = 0; /* Should not be required, but is safe */ - - /* Ensure the error message pointer is always set: */ - png_zstream_error(png_ptr, ret); - return ret; - } - - else - { - png_ptr->zstream.msg = PNGZ_MSG_CAST("zstream unclaimed"); - return Z_STREAM_ERROR; - } -} -#endif - -/* Read and check the IDHR chunk */ -void /* PRIVATE */ -png_handle_IHDR(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte buf[13]; - png_uint_32 width, height; - int bit_depth, color_type, compression_type, filter_type; - int interlace_type; - - png_debug(1, "in png_handle_IHDR"); - - if (png_ptr->mode & PNG_HAVE_IHDR) - png_chunk_error(png_ptr, "out of place"); - - /* Check the length */ - if (length != 13) - png_chunk_error(png_ptr, "invalid"); - - png_ptr->mode |= PNG_HAVE_IHDR; - - png_crc_read(png_ptr, buf, 13); - png_crc_finish(png_ptr, 0); - - width = png_get_uint_31(png_ptr, buf); - height = png_get_uint_31(png_ptr, buf + 4); - bit_depth = buf[8]; - color_type = buf[9]; - compression_type = buf[10]; - filter_type = buf[11]; - interlace_type = buf[12]; - - /* Set internal variables */ - png_ptr->width = width; - png_ptr->height = height; - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->interlaced = (png_byte)interlace_type; - png_ptr->color_type = (png_byte)color_type; -#ifdef PNG_MNG_FEATURES_SUPPORTED - png_ptr->filter_type = (png_byte)filter_type; -#endif - png_ptr->compression_type = (png_byte)compression_type; - - /* Find number of channels */ - switch (png_ptr->color_type) - { - default: /* invalid, png_set_IHDR calls png_error */ - case PNG_COLOR_TYPE_GRAY: - case PNG_COLOR_TYPE_PALETTE: - png_ptr->channels = 1; - break; - - case PNG_COLOR_TYPE_RGB: - png_ptr->channels = 3; - break; - - case PNG_COLOR_TYPE_GRAY_ALPHA: - png_ptr->channels = 2; - break; - - case PNG_COLOR_TYPE_RGB_ALPHA: - png_ptr->channels = 4; - break; - } - - /* Set up other useful info */ - png_ptr->pixel_depth = (png_byte)(png_ptr->bit_depth * - png_ptr->channels); - png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->width); - png_debug1(3, "bit_depth = %d", png_ptr->bit_depth); - png_debug1(3, "channels = %d", png_ptr->channels); - png_debug1(3, "rowbytes = %lu", (unsigned long)png_ptr->rowbytes); - png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, - color_type, interlace_type, compression_type, filter_type); -} - -/* Read and check the palette */ -void /* PRIVATE */ -png_handle_PLTE(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_color palette[PNG_MAX_PALETTE_LENGTH]; - int num, i; -#ifdef PNG_POINTER_INDEXING_SUPPORTED - png_colorp pal_ptr; -#endif - - png_debug(1, "in png_handle_PLTE"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - /* Moved to before the 'after IDAT' check below because otherwise duplicate - * PLTE chunks are potentially ignored (the spec says there shall not be more - * than one PLTE, the error is not treated as benign, so this check trumps - * the requirement that PLTE appears before IDAT.) - */ - else if (png_ptr->mode & PNG_HAVE_PLTE) - png_chunk_error(png_ptr, "duplicate"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - /* This is benign because the non-benign error happened before, when an - * IDAT was encountered in a color-mapped image with no PLTE. - */ - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - png_ptr->mode |= PNG_HAVE_PLTE; - - if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "ignored in grayscale PNG"); - return; - } - -#ifndef PNG_READ_OPT_PLTE_SUPPORTED - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - { - png_crc_finish(png_ptr, length); - return; - } -#endif - - if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3) - { - png_crc_finish(png_ptr, length); - - if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE) - png_chunk_benign_error(png_ptr, "invalid"); - - else - png_chunk_error(png_ptr, "invalid"); - - return; - } - - /* The cast is safe because 'length' is less than 3*PNG_MAX_PALETTE_LENGTH */ - num = (int)length / 3; - -#ifdef PNG_POINTER_INDEXING_SUPPORTED - for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - pal_ptr->red = buf[0]; - pal_ptr->green = buf[1]; - pal_ptr->blue = buf[2]; - } -#else - for (i = 0; i < num; i++) - { - png_byte buf[3]; - - png_crc_read(png_ptr, buf, 3); - /* Don't depend upon png_color being any order */ - palette[i].red = buf[0]; - palette[i].green = buf[1]; - palette[i].blue = buf[2]; - } -#endif - - /* If we actually need the PLTE chunk (ie for a paletted image), we do - * whatever the normal CRC configuration tells us. However, if we - * have an RGB image, the PLTE can be considered ancillary, so - * we will act as though it is. - */ -#ifndef PNG_READ_OPT_PLTE_SUPPORTED - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) -#endif - { - png_crc_finish(png_ptr, 0); - } - -#ifndef PNG_READ_OPT_PLTE_SUPPORTED - else if (png_crc_error(png_ptr)) /* Only if we have a CRC error */ - { - /* If we don't want to use the data from an ancillary chunk, - * we have two options: an error abort, or a warning and we - * ignore the data in this chunk (which should be OK, since - * it's considered ancillary for a RGB or RGBA image). - * - * IMPLEMENTATION NOTE: this is only here because png_crc_finish uses the - * chunk type to determine whether to check the ancillary or the critical - * flags. - */ - if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_USE)) - { - if (png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN) - return; - - else - png_chunk_error(png_ptr, "CRC error"); - } - - /* Otherwise, we (optionally) emit a warning and use the chunk. */ - else if (!(png_ptr->flags & PNG_FLAG_CRC_ANCILLARY_NOWARN)) - png_chunk_warning(png_ptr, "CRC error"); - } -#endif - - /* TODO: png_set_PLTE has the side effect of setting png_ptr->palette to its - * own copy of the palette. This has the side effect that when png_start_row - * is called (this happens after any call to png_read_update_info) the - * info_ptr palette gets changed. This is extremely unexpected and - * confusing. - * - * Fix this by not sharing the palette in this way. - */ - png_set_PLTE(png_ptr, info_ptr, palette, num); - - /* The three chunks, bKGD, hIST and tRNS *must* appear after PLTE and before - * IDAT. Prior to 1.6.0 this was not checked; instead the code merely - * checked the apparent validity of a tRNS chunk inserted before PLTE on a - * palette PNG. 1.6.0 attempts to rigorously follow the standard and - * therefore does a benign error if the erroneous condition is detected *and* - * cancels the tRNS if the benign error returns. The alternative is to - * amend the standard since it would be rather hypocritical of the standards - * maintainers to ignore it. - */ -#ifdef PNG_READ_tRNS_SUPPORTED - if (png_ptr->num_trans > 0 || - (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS) != 0)) - { - /* Cancel this because otherwise it would be used if the transforms - * require it. Don't cancel the 'valid' flag because this would prevent - * detection of duplicate chunks. - */ - png_ptr->num_trans = 0; - - if (info_ptr != NULL) - info_ptr->num_trans = 0; - - png_chunk_benign_error(png_ptr, "tRNS must be after"); - } -#endif - -#ifdef PNG_READ_hIST_SUPPORTED - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST) != 0) - png_chunk_benign_error(png_ptr, "hIST must be after"); -#endif - -#ifdef PNG_READ_bKGD_SUPPORTED - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD) != 0) - png_chunk_benign_error(png_ptr, "bKGD must be after"); -#endif -} - -void /* PRIVATE */ -png_handle_IEND(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_debug(1, "in png_handle_IEND"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR) || !(png_ptr->mode & PNG_HAVE_IDAT)) - png_chunk_error(png_ptr, "out of place"); - - png_ptr->mode |= (PNG_AFTER_IDAT | PNG_HAVE_IEND); - - png_crc_finish(png_ptr, length); - - if (length != 0) - png_chunk_benign_error(png_ptr, "invalid"); - - PNG_UNUSED(info_ptr) -} - -#ifdef PNG_READ_gAMA_SUPPORTED -void /* PRIVATE */ -png_handle_gAMA(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_fixed_point igamma; - png_byte buf[4]; - - png_debug(1, "in png_handle_gAMA"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - if (length != 4) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 4); - - if (png_crc_finish(png_ptr, 0)) - return; - - igamma = png_get_fixed_point(NULL, buf); - - png_colorspace_set_gamma(png_ptr, &png_ptr->colorspace, igamma); - png_colorspace_sync(png_ptr, info_ptr); -} -#endif - -#ifdef PNG_READ_sBIT_SUPPORTED -void /* PRIVATE */ -png_handle_sBIT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - unsigned int truelen, i; - png_byte sample_depth; - png_byte buf[4]; - - png_debug(1, "in png_handle_sBIT"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sBIT)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - truelen = 3; - sample_depth = 8; - } - - else - { - truelen = png_ptr->channels; - sample_depth = png_ptr->bit_depth; - } - - if (length != truelen || length > 4) - { - png_chunk_benign_error(png_ptr, "invalid"); - png_crc_finish(png_ptr, length); - return; - } - - buf[0] = buf[1] = buf[2] = buf[3] = sample_depth; - png_crc_read(png_ptr, buf, truelen); - - if (png_crc_finish(png_ptr, 0)) - return; - - for (i=0; i sample_depth) - { - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - { - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[1]; - png_ptr->sig_bit.blue = buf[2]; - png_ptr->sig_bit.alpha = buf[3]; - } - - else - { - png_ptr->sig_bit.gray = buf[0]; - png_ptr->sig_bit.red = buf[0]; - png_ptr->sig_bit.green = buf[0]; - png_ptr->sig_bit.blue = buf[0]; - png_ptr->sig_bit.alpha = buf[1]; - } - - png_set_sBIT(png_ptr, info_ptr, &(png_ptr->sig_bit)); -} -#endif - -#ifdef PNG_READ_cHRM_SUPPORTED -void /* PRIVATE */ -png_handle_cHRM(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte buf[32]; - png_xy xy; - - png_debug(1, "in png_handle_cHRM"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - if (length != 32) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 32); - - if (png_crc_finish(png_ptr, 0)) - return; - - xy.whitex = png_get_fixed_point(NULL, buf); - xy.whitey = png_get_fixed_point(NULL, buf + 4); - xy.redx = png_get_fixed_point(NULL, buf + 8); - xy.redy = png_get_fixed_point(NULL, buf + 12); - xy.greenx = png_get_fixed_point(NULL, buf + 16); - xy.greeny = png_get_fixed_point(NULL, buf + 20); - xy.bluex = png_get_fixed_point(NULL, buf + 24); - xy.bluey = png_get_fixed_point(NULL, buf + 28); - - if (xy.whitex == PNG_FIXED_ERROR || - xy.whitey == PNG_FIXED_ERROR || - xy.redx == PNG_FIXED_ERROR || - xy.redy == PNG_FIXED_ERROR || - xy.greenx == PNG_FIXED_ERROR || - xy.greeny == PNG_FIXED_ERROR || - xy.bluex == PNG_FIXED_ERROR || - xy.bluey == PNG_FIXED_ERROR) - { - png_chunk_benign_error(png_ptr, "invalid values"); - return; - } - - /* If a colorspace error has already been output skip this chunk */ - if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) - return; - - if (png_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) - { - png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; - png_colorspace_sync(png_ptr, info_ptr); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - png_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; - (void)png_colorspace_set_chromaticities(png_ptr, &png_ptr->colorspace, &xy, - 1/*prefer cHRM values*/); - png_colorspace_sync(png_ptr, info_ptr); -} -#endif - -#ifdef PNG_READ_sRGB_SUPPORTED -void /* PRIVATE */ -png_handle_sRGB(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte intent; - - png_debug(1, "in png_handle_sRGB"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - if (length != 1) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, &intent, 1); - - if (png_crc_finish(png_ptr, 0)) - return; - - /* If a colorspace error has already been output skip this chunk */ - if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) - return; - - /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect - * this. - */ - if (png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) - { - png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; - png_colorspace_sync(png_ptr, info_ptr); - png_chunk_benign_error(png_ptr, "too many profiles"); - return; - } - - (void)png_colorspace_set_sRGB(png_ptr, &png_ptr->colorspace, intent); - png_colorspace_sync(png_ptr, info_ptr); -} -#endif /* PNG_READ_sRGB_SUPPORTED */ - -#ifdef PNG_READ_iCCP_SUPPORTED -void /* PRIVATE */ -png_handle_iCCP(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -/* Note: this does not properly handle profiles that are > 64K under DOS */ -{ - png_const_charp errmsg = NULL; /* error message output, or no error */ - int finished = 0; /* crc checked */ - - png_debug(1, "in png_handle_iCCP"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & (PNG_HAVE_IDAT|PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - /* Consistent with all the above colorspace handling an obviously *invalid* - * chunk is just ignored, so does not invalidate the color space. An - * alternative is to set the 'invalid' flags at the start of this routine - * and only clear them in they were not set before and all the tests pass. - * The minimum 'deflate' stream is assumed to be just the 2 byte header and 4 - * byte checksum. The keyword must be one character and there is a - * terminator (0) byte and the compression method. - */ - if (length < 9) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "too short"); - return; - } - - /* If a colorspace error has already been output skip this chunk */ - if (png_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) - { - png_crc_finish(png_ptr, length); - return; - } - - /* Only one sRGB or iCCP chunk is allowed, use the HAVE_INTENT flag to detect - * this. - */ - if ((png_ptr->colorspace.flags & PNG_COLORSPACE_HAVE_INTENT) == 0) - { - uInt read_length, keyword_length; - char keyword[81]; - - /* Find the keyword; the keyword plus separator and compression method - * bytes can be at most 81 characters long. - */ - read_length = 81; /* maximum */ - if (read_length > length) - read_length = (uInt)length; - - png_crc_read(png_ptr, (png_bytep)keyword, read_length); - length -= read_length; - - keyword_length = 0; - while (keyword_length < 80 && keyword_length < read_length && - keyword[keyword_length] != 0) - ++keyword_length; - - /* TODO: make the keyword checking common */ - if (keyword_length >= 1 && keyword_length <= 79) - { - /* We only understand '0' compression - deflate - so if we get a - * different value we can't safely decode the chunk. - */ - if (keyword_length+1 < read_length && - keyword[keyword_length+1] == PNG_COMPRESSION_TYPE_BASE) - { - read_length -= keyword_length+2; - - if (png_inflate_claim(png_ptr, png_iCCP) == Z_OK) - { - Byte profile_header[132]; - Byte local_buffer[PNG_INFLATE_BUF_SIZE]; - png_alloc_size_t size = (sizeof profile_header); - - png_ptr->zstream.next_in = (Bytef*)keyword + (keyword_length+2); - png_ptr->zstream.avail_in = read_length; - (void)png_inflate_read(png_ptr, local_buffer, - (sizeof local_buffer), &length, profile_header, &size, - 0/*finish: don't, because the output is too small*/); - - if (size == 0) - { - /* We have the ICC profile header; do the basic header checks. - */ - const png_uint_32 profile_length = - png_get_uint_32(profile_header); - - if (png_icc_check_length(png_ptr, &png_ptr->colorspace, - keyword, profile_length)) - { - /* The length is apparently ok, so we can check the 132 - * byte header. - */ - if (png_icc_check_header(png_ptr, &png_ptr->colorspace, - keyword, profile_length, profile_header, - png_ptr->color_type)) - { - /* Now read the tag table; a variable size buffer is - * needed at this point, allocate one for the whole - * profile. The header check has already validated - * that none of these stuff will overflow. - */ - const png_uint_32 tag_count = png_get_uint_32( - profile_header+128); - png_bytep profile = png_read_buffer(png_ptr, - profile_length, 2/*silent*/); - - if (profile != NULL) - { - memcpy(profile, profile_header, - (sizeof profile_header)); - - size = 12 * tag_count; - - (void)png_inflate_read(png_ptr, local_buffer, - (sizeof local_buffer), &length, - profile + (sizeof profile_header), &size, 0); - - /* Still expect a buffer error because we expect - * there to be some tag data! - */ - if (size == 0) - { - if (png_icc_check_tag_table(png_ptr, - &png_ptr->colorspace, keyword, profile_length, - profile)) - { - /* The profile has been validated for basic - * security issues, so read the whole thing in. - */ - size = profile_length - (sizeof profile_header) - - 12 * tag_count; - - (void)png_inflate_read(png_ptr, local_buffer, - (sizeof local_buffer), &length, - profile + (sizeof profile_header) + - 12 * tag_count, &size, 1/*finish*/); - - if (length > 0 && !(png_ptr->flags & - PNG_FLAG_BENIGN_ERRORS_WARN)) - errmsg = "extra compressed data"; - - /* But otherwise allow extra data: */ - else if (size == 0) - { - if (length > 0) - { - /* This can be handled completely, so - * keep going. - */ - png_chunk_warning(png_ptr, - "extra compressed data"); - } - - png_crc_finish(png_ptr, length); - finished = 1; - -# ifdef PNG_sRGB_SUPPORTED - /* Check for a match against sRGB */ - png_icc_set_sRGB(png_ptr, - &png_ptr->colorspace, profile, - png_ptr->zstream.adler); -# endif - - /* Steal the profile for info_ptr. */ - if (info_ptr != NULL) - { - png_free_data(png_ptr, info_ptr, - PNG_FREE_ICCP, 0); - - info_ptr->iccp_name = png_voidcast(char*, - png_malloc_base(png_ptr, - keyword_length+1)); - if (info_ptr->iccp_name != NULL) - { - memcpy(info_ptr->iccp_name, keyword, - keyword_length+1); - info_ptr->iccp_proflen = - profile_length; - info_ptr->iccp_profile = profile; - png_ptr->read_buffer = NULL; /*steal*/ - info_ptr->free_me |= PNG_FREE_ICCP; - info_ptr->valid |= PNG_INFO_iCCP; - } - - else - { - png_ptr->colorspace.flags |= - PNG_COLORSPACE_INVALID; - errmsg = "out of memory"; - } - } - - /* else the profile remains in the read - * buffer which gets reused for subsequent - * chunks. - */ - - if (info_ptr != NULL) - png_colorspace_sync(png_ptr, info_ptr); - - if (errmsg == NULL) - { - png_ptr->zowner = 0; - return; - } - } - - else if (size > 0) - errmsg = "truncated"; - - else - errmsg = png_ptr->zstream.msg; - } - - /* else png_icc_check_tag_table output an error */ - } - - else /* profile truncated */ - errmsg = png_ptr->zstream.msg; - } - - else - errmsg = "out of memory"; - } - - /* else png_icc_check_header output an error */ - } - - /* else png_icc_check_length output an error */ - } - - else /* profile truncated */ - errmsg = png_ptr->zstream.msg; - - /* Release the stream */ - png_ptr->zowner = 0; - } - - else /* png_inflate_claim failed */ - errmsg = png_ptr->zstream.msg; - } - - else - errmsg = "bad compression method"; /* or missing */ - } - - else - errmsg = "bad keyword"; - } - - else - errmsg = "too many profiles"; - - /* Failure: the reason is in 'errmsg' */ - if (finished == 0) - png_crc_finish(png_ptr, length); - - png_ptr->colorspace.flags |= PNG_COLORSPACE_INVALID; - png_colorspace_sync(png_ptr, info_ptr); - if (errmsg != NULL) /* else already output */ - png_chunk_benign_error(png_ptr, errmsg); -} -#endif /* PNG_READ_iCCP_SUPPORTED */ - -#ifdef PNG_READ_sPLT_SUPPORTED -void /* PRIVATE */ -png_handle_sPLT(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -/* Note: this does not properly handle chunks that are > 64K under DOS */ -{ - png_bytep entry_start, buffer; - png_sPLT_t new_palette; - png_sPLT_entryp pp; - png_uint_32 data_length; - int entry_size, i; - png_uint_32 skip = 0; - png_uint_32 dl; - png_size_t max_dl; - - png_debug(1, "in png_handle_sPLT"); - -#ifdef PNG_USER_LIMITS_SUPPORTED - if (png_ptr->user_chunk_cache_max != 0) - { - if (png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - return; - } - - if (--png_ptr->user_chunk_cache_max == 1) - { - png_warning(png_ptr, "No space in chunk cache for sPLT"); - png_crc_finish(png_ptr, length); - return; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - -#ifdef PNG_MAX_MALLOC_64K - if (length > 65535U) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "too large to fit in memory"); - return; - } -#endif - - buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); - if (buffer == NULL) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - - /* WARNING: this may break if size_t is less than 32 bits; it is assumed - * that the PNG_MAX_MALLOC_64K test is enabled in this case, but this is a - * potential breakage point if the types in pngconf.h aren't exactly right. - */ - png_crc_read(png_ptr, buffer, length); - - if (png_crc_finish(png_ptr, skip)) - return; - - buffer[length] = 0; - - for (entry_start = buffer; *entry_start; entry_start++) - /* Empty loop to find end of name */ ; - - ++entry_start; - - /* A sample depth should follow the separator, and we should be on it */ - if (entry_start > buffer + length - 2) - { - png_warning(png_ptr, "malformed sPLT chunk"); - return; - } - - new_palette.depth = *entry_start++; - entry_size = (new_palette.depth == 8 ? 6 : 10); - /* This must fit in a png_uint_32 because it is derived from the original - * chunk data length. - */ - data_length = length - (png_uint_32)(entry_start - buffer); - - /* Integrity-check the data length */ - if (data_length % entry_size) - { - png_warning(png_ptr, "sPLT chunk has bad length"); - return; - } - - dl = (png_int_32)(data_length / entry_size); - max_dl = PNG_SIZE_MAX / (sizeof (png_sPLT_entry)); - - if (dl > max_dl) - { - png_warning(png_ptr, "sPLT chunk too long"); - return; - } - - new_palette.nentries = (png_int_32)(data_length / entry_size); - - new_palette.entries = (png_sPLT_entryp)png_malloc_warn( - png_ptr, new_palette.nentries * (sizeof (png_sPLT_entry))); - - if (new_palette.entries == NULL) - { - png_warning(png_ptr, "sPLT chunk requires too much memory"); - return; - } - -#ifdef PNG_POINTER_INDEXING_SUPPORTED - for (i = 0; i < new_palette.nentries; i++) - { - pp = new_palette.entries + i; - - if (new_palette.depth == 8) - { - pp->red = *entry_start++; - pp->green = *entry_start++; - pp->blue = *entry_start++; - pp->alpha = *entry_start++; - } - - else - { - pp->red = png_get_uint_16(entry_start); entry_start += 2; - pp->green = png_get_uint_16(entry_start); entry_start += 2; - pp->blue = png_get_uint_16(entry_start); entry_start += 2; - pp->alpha = png_get_uint_16(entry_start); entry_start += 2; - } - - pp->frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#else - pp = new_palette.entries; - - for (i = 0; i < new_palette.nentries; i++) - { - - if (new_palette.depth == 8) - { - pp[i].red = *entry_start++; - pp[i].green = *entry_start++; - pp[i].blue = *entry_start++; - pp[i].alpha = *entry_start++; - } - - else - { - pp[i].red = png_get_uint_16(entry_start); entry_start += 2; - pp[i].green = png_get_uint_16(entry_start); entry_start += 2; - pp[i].blue = png_get_uint_16(entry_start); entry_start += 2; - pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2; - } - - pp[i].frequency = png_get_uint_16(entry_start); entry_start += 2; - } -#endif - - /* Discard all chunk data except the name and stash that */ - new_palette.name = (png_charp)buffer; - - png_set_sPLT(png_ptr, info_ptr, &new_palette, 1); - - png_free(png_ptr, new_palette.entries); -} -#endif /* PNG_READ_sPLT_SUPPORTED */ - -#ifdef PNG_READ_tRNS_SUPPORTED -void /* PRIVATE */ -png_handle_tRNS(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte readbuf[PNG_MAX_PALETTE_LENGTH]; - - png_debug(1, "in png_handle_tRNS"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tRNS)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - png_byte buf[2]; - - if (length != 2) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 2); - png_ptr->num_trans = 1; - png_ptr->trans_color.gray = png_get_uint_16(buf); - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - png_byte buf[6]; - - if (length != 6) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, length); - png_ptr->num_trans = 1; - png_ptr->trans_color.red = png_get_uint_16(buf); - png_ptr->trans_color.green = png_get_uint_16(buf + 2); - png_ptr->trans_color.blue = png_get_uint_16(buf + 4); - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (!(png_ptr->mode & PNG_HAVE_PLTE)) - { - /* TODO: is this actually an error in the ISO spec? */ - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - if (length > png_ptr->num_palette || length > PNG_MAX_PALETTE_LENGTH || - length == 0) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, readbuf, length); - png_ptr->num_trans = (png_uint_16)length; - } - - else - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid with alpha channel"); - return; - } - - if (png_crc_finish(png_ptr, 0)) - { - png_ptr->num_trans = 0; - return; - } - - /* TODO: this is a horrible side effect in the palette case because the - * png_struct ends up with a pointer to the tRNS buffer owned by the - * png_info. Fix this. - */ - png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans, - &(png_ptr->trans_color)); -} -#endif - -#ifdef PNG_READ_bKGD_SUPPORTED -void /* PRIVATE */ -png_handle_bKGD(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - unsigned int truelen; - png_byte buf[6]; - png_color_16 background; - - png_debug(1, "in png_handle_bKGD"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if ((png_ptr->mode & PNG_HAVE_IDAT) || - (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE && - !(png_ptr->mode & PNG_HAVE_PLTE))) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_bKGD)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - truelen = 1; - - else if (png_ptr->color_type & PNG_COLOR_MASK_COLOR) - truelen = 6; - - else - truelen = 2; - - if (length != truelen) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, truelen); - - if (png_crc_finish(png_ptr, 0)) - return; - - /* We convert the index value into RGB components so that we can allow - * arbitrary RGB values for background when we have transparency, and - * so it is easy to determine the RGB values of the background color - * from the info_ptr struct. - */ - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - background.index = buf[0]; - - if (info_ptr && info_ptr->num_palette) - { - if (buf[0] >= info_ptr->num_palette) - { - png_chunk_benign_error(png_ptr, "invalid index"); - return; - } - - background.red = (png_uint_16)png_ptr->palette[buf[0]].red; - background.green = (png_uint_16)png_ptr->palette[buf[0]].green; - background.blue = (png_uint_16)png_ptr->palette[buf[0]].blue; - } - - else - background.red = background.green = background.blue = 0; - - background.gray = 0; - } - - else if (!(png_ptr->color_type & PNG_COLOR_MASK_COLOR)) /* GRAY */ - { - background.index = 0; - background.red = - background.green = - background.blue = - background.gray = png_get_uint_16(buf); - } - - else - { - background.index = 0; - background.red = png_get_uint_16(buf); - background.green = png_get_uint_16(buf + 2); - background.blue = png_get_uint_16(buf + 4); - background.gray = 0; - } - - png_set_bKGD(png_ptr, info_ptr, &background); -} -#endif - -#ifdef PNG_READ_hIST_SUPPORTED -void /* PRIVATE */ -png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - unsigned int num, i; - png_uint_16 readbuf[PNG_MAX_PALETTE_LENGTH]; - - png_debug(1, "in png_handle_hIST"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if ((png_ptr->mode & PNG_HAVE_IDAT) || !(png_ptr->mode & PNG_HAVE_PLTE)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_hIST)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - num = length / 2 ; - - if (num != png_ptr->num_palette || num > PNG_MAX_PALETTE_LENGTH) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - for (i = 0; i < num; i++) - { - png_byte buf[2]; - - png_crc_read(png_ptr, buf, 2); - readbuf[i] = png_get_uint_16(buf); - } - - if (png_crc_finish(png_ptr, 0)) - return; - - png_set_hIST(png_ptr, info_ptr, readbuf); -} -#endif - -#ifdef PNG_READ_pHYs_SUPPORTED -void /* PRIVATE */ -png_handle_pHYs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_uint_32 res_x, res_y; - int unit_type; - - png_debug(1, "in png_handle_pHYs"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pHYs)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (length != 9) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 9); - - if (png_crc_finish(png_ptr, 0)) - return; - - res_x = png_get_uint_32(buf); - res_y = png_get_uint_32(buf + 4); - unit_type = buf[8]; - png_set_pHYs(png_ptr, info_ptr, res_x, res_y, unit_type); -} -#endif - -#ifdef PNG_READ_oFFs_SUPPORTED -void /* PRIVATE */ -png_handle_oFFs(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte buf[9]; - png_int_32 offset_x, offset_y; - int unit_type; - - png_debug(1, "in png_handle_oFFs"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_oFFs)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (length != 9) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 9); - - if (png_crc_finish(png_ptr, 0)) - return; - - offset_x = png_get_int_32(buf); - offset_y = png_get_int_32(buf + 4); - unit_type = buf[8]; - png_set_oFFs(png_ptr, info_ptr, offset_x, offset_y, unit_type); -} -#endif - -#ifdef PNG_READ_pCAL_SUPPORTED -/* Read the pCAL chunk (described in the PNG Extensions document) */ -void /* PRIVATE */ -png_handle_pCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_int_32 X0, X1; - png_byte type, nparams; - png_bytep buffer, buf, units, endptr; - png_charpp params; - int i; - - png_debug(1, "in png_handle_pCAL"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_pCAL)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - png_debug1(2, "Allocating and reading pCAL chunk data (%u bytes)", - length + 1); - - buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); - - if (buffer == NULL) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - png_crc_read(png_ptr, buffer, length); - - if (png_crc_finish(png_ptr, 0)) - return; - - buffer[length] = 0; /* Null terminate the last string */ - - png_debug(3, "Finding end of pCAL purpose string"); - for (buf = buffer; *buf; buf++) - /* Empty loop */ ; - - endptr = buffer + length; - - /* We need to have at least 12 bytes after the purpose string - * in order to get the parameter information. - */ - if (endptr <= buf + 12) - { - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_debug(3, "Reading pCAL X0, X1, type, nparams, and units"); - X0 = png_get_int_32((png_bytep)buf+1); - X1 = png_get_int_32((png_bytep)buf+5); - type = buf[9]; - nparams = buf[10]; - units = buf + 11; - - png_debug(3, "Checking pCAL equation type and number of parameters"); - /* Check that we have the right number of parameters for known - * equation types. - */ - if ((type == PNG_EQUATION_LINEAR && nparams != 2) || - (type == PNG_EQUATION_BASE_E && nparams != 3) || - (type == PNG_EQUATION_ARBITRARY && nparams != 3) || - (type == PNG_EQUATION_HYPERBOLIC && nparams != 4)) - { - png_chunk_benign_error(png_ptr, "invalid parameter count"); - return; - } - - else if (type >= PNG_EQUATION_LAST) - { - png_chunk_benign_error(png_ptr, "unrecognized equation type"); - } - - for (buf = units; *buf; buf++) - /* Empty loop to move past the units string. */ ; - - png_debug(3, "Allocating pCAL parameters array"); - - params = png_voidcast(png_charpp, png_malloc_warn(png_ptr, - nparams * (sizeof (png_charp)))); - - if (params == NULL) - { - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - /* Get pointers to the start of each parameter string. */ - for (i = 0; i < nparams; i++) - { - buf++; /* Skip the null string terminator from previous parameter. */ - - png_debug1(3, "Reading pCAL parameter %d", i); - - for (params[i] = (png_charp)buf; buf <= endptr && *buf != 0; buf++) - /* Empty loop to move past each parameter string */ ; - - /* Make sure we haven't run out of data yet */ - if (buf > endptr) - { - png_free(png_ptr, params); - png_chunk_benign_error(png_ptr, "invalid data"); - return; - } - } - - png_set_pCAL(png_ptr, info_ptr, (png_charp)buffer, X0, X1, type, nparams, - (png_charp)units, params); - - png_free(png_ptr, params); -} -#endif - -#ifdef PNG_READ_sCAL_SUPPORTED -/* Read the sCAL chunk */ -void /* PRIVATE */ -png_handle_sCAL(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_bytep buffer; - png_size_t i; - int state; - - png_debug(1, "in png_handle_sCAL"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (png_ptr->mode & PNG_HAVE_IDAT) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of place"); - return; - } - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_sCAL)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - /* Need unit type, width, \0, height: minimum 4 bytes */ - else if (length < 4) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_debug1(2, "Allocating and reading sCAL chunk data (%u bytes)", - length + 1); - - buffer = png_read_buffer(png_ptr, length+1, 2/*silent*/); - - if (buffer == NULL) - { - png_chunk_benign_error(png_ptr, "out of memory"); - png_crc_finish(png_ptr, length); - return; - } - - png_crc_read(png_ptr, buffer, length); - buffer[length] = 0; /* Null terminate the last string */ - - if (png_crc_finish(png_ptr, 0)) - return; - - /* Validate the unit. */ - if (buffer[0] != 1 && buffer[0] != 2) - { - png_chunk_benign_error(png_ptr, "invalid unit"); - return; - } - - /* Validate the ASCII numbers, need two ASCII numbers separated by - * a '\0' and they need to fit exactly in the chunk data. - */ - i = 1; - state = 0; - - if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) || - i >= length || buffer[i++] != 0) - png_chunk_benign_error(png_ptr, "bad width format"); - - else if (!PNG_FP_IS_POSITIVE(state)) - png_chunk_benign_error(png_ptr, "non-positive width"); - - else - { - png_size_t heighti = i; - - state = 0; - if (!png_check_fp_number((png_const_charp)buffer, length, &state, &i) || - i != length) - png_chunk_benign_error(png_ptr, "bad height format"); - - else if (!PNG_FP_IS_POSITIVE(state)) - png_chunk_benign_error(png_ptr, "non-positive height"); - - else - /* This is the (only) success case. */ - png_set_sCAL_s(png_ptr, info_ptr, buffer[0], - (png_charp)buffer+1, (png_charp)buffer+heighti); - } -} -#endif - -#ifdef PNG_READ_tIME_SUPPORTED -void /* PRIVATE */ -png_handle_tIME(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_byte buf[7]; - png_time mod_time; - - png_debug(1, "in png_handle_tIME"); - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - else if (info_ptr != NULL && (info_ptr->valid & PNG_INFO_tIME)) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "duplicate"); - return; - } - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - if (length != 7) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "invalid"); - return; - } - - png_crc_read(png_ptr, buf, 7); - - if (png_crc_finish(png_ptr, 0)) - return; - - mod_time.second = buf[6]; - mod_time.minute = buf[5]; - mod_time.hour = buf[4]; - mod_time.day = buf[3]; - mod_time.month = buf[2]; - mod_time.year = png_get_uint_16(buf); - - png_set_tIME(png_ptr, info_ptr, &mod_time); -} -#endif - -#ifdef PNG_READ_tEXt_SUPPORTED -/* Note: this does not properly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_tEXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_text text_info; - png_bytep buffer; - png_charp key; - png_charp text; - png_uint_32 skip = 0; - - png_debug(1, "in png_handle_tEXt"); - -#ifdef PNG_USER_LIMITS_SUPPORTED - if (png_ptr->user_chunk_cache_max != 0) - { - if (png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - return; - } - - if (--png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "no space in chunk cache"); - return; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - -#ifdef PNG_MAX_MALLOC_64K - if (length > 65535U) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "too large to fit in memory"); - return; - } -#endif - - buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/); - - if (buffer == NULL) - { - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - png_crc_read(png_ptr, buffer, length); - - if (png_crc_finish(png_ptr, skip)) - return; - - key = (png_charp)buffer; - key[length] = 0; - - for (text = key; *text; text++) - /* Empty loop to find end of key */ ; - - if (text != key + length) - text++; - - text_info.compression = PNG_TEXT_COMPRESSION_NONE; - text_info.key = key; - text_info.lang = NULL; - text_info.lang_key = NULL; - text_info.itxt_length = 0; - text_info.text = text; - text_info.text_length = strlen(text); - - if (png_set_text_2(png_ptr, info_ptr, &text_info, 1)) - png_warning(png_ptr, "Insufficient memory to process text chunk"); -} -#endif - -#ifdef PNG_READ_zTXt_SUPPORTED -/* Note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_zTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_const_charp errmsg = NULL; - png_bytep buffer; - png_uint_32 keyword_length; - - png_debug(1, "in png_handle_zTXt"); - -#ifdef PNG_USER_LIMITS_SUPPORTED - if (png_ptr->user_chunk_cache_max != 0) - { - if (png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - return; - } - - if (--png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "no space in chunk cache"); - return; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - buffer = png_read_buffer(png_ptr, length, 2/*silent*/); - - if (buffer == NULL) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - png_crc_read(png_ptr, buffer, length); - - if (png_crc_finish(png_ptr, 0)) - return; - - /* TODO: also check that the keyword contents match the spec! */ - for (keyword_length = 0; - keyword_length < length && buffer[keyword_length] != 0; - ++keyword_length) - /* Empty loop to find end of name */ ; - - if (keyword_length > 79 || keyword_length < 1) - errmsg = "bad keyword"; - - /* zTXt must have some LZ data after the keyword, although it may expand to - * zero bytes; we need a '\0' at the end of the keyword, the compression type - * then the LZ data: - */ - else if (keyword_length + 3 > length) - errmsg = "truncated"; - - else if (buffer[keyword_length+1] != PNG_COMPRESSION_TYPE_BASE) - errmsg = "unknown compression type"; - - else - { - png_alloc_size_t uncompressed_length = PNG_SIZE_MAX; - - /* TODO: at present png_decompress_chunk imposes a single application - * level memory limit, this should be split to different values for iCCP - * and text chunks. - */ - if (png_decompress_chunk(png_ptr, length, keyword_length+2, - &uncompressed_length, 1/*terminate*/) == Z_STREAM_END) - { - png_text text; - - /* It worked; png_ptr->read_buffer now looks like a tEXt chunk except - * for the extra compression type byte and the fact that it isn't - * necessarily '\0' terminated. - */ - buffer = png_ptr->read_buffer; - buffer[uncompressed_length+(keyword_length+2)] = 0; - - text.compression = PNG_TEXT_COMPRESSION_zTXt; - text.key = (png_charp)buffer; - text.text = (png_charp)(buffer + keyword_length+2); - text.text_length = uncompressed_length; - text.itxt_length = 0; - text.lang = NULL; - text.lang_key = NULL; - - if (png_set_text_2(png_ptr, info_ptr, &text, 1)) - errmsg = "insufficient memory"; - } - - else - errmsg = png_ptr->zstream.msg; - } - - if (errmsg != NULL) - png_chunk_benign_error(png_ptr, errmsg); -} -#endif - -#ifdef PNG_READ_iTXt_SUPPORTED -/* Note: this does not correctly handle chunks that are > 64K under DOS */ -void /* PRIVATE */ -png_handle_iTXt(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length) -{ - png_const_charp errmsg = NULL; - png_bytep buffer; - png_uint_32 prefix_length; - - png_debug(1, "in png_handle_iTXt"); - -#ifdef PNG_USER_LIMITS_SUPPORTED - if (png_ptr->user_chunk_cache_max != 0) - { - if (png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - return; - } - - if (--png_ptr->user_chunk_cache_max == 1) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "no space in chunk cache"); - return; - } - } -#endif - - if (!(png_ptr->mode & PNG_HAVE_IHDR)) - png_chunk_error(png_ptr, "missing IHDR"); - - if (png_ptr->mode & PNG_HAVE_IDAT) - png_ptr->mode |= PNG_AFTER_IDAT; - - buffer = png_read_buffer(png_ptr, length+1, 1/*warn*/); - - if (buffer == NULL) - { - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "out of memory"); - return; - } - - png_crc_read(png_ptr, buffer, length); - - if (png_crc_finish(png_ptr, 0)) - return; - - /* First the keyword. */ - for (prefix_length=0; - prefix_length < length && buffer[prefix_length] != 0; - ++prefix_length) - /* Empty loop */ ; - - /* Perform a basic check on the keyword length here. */ - if (prefix_length > 79 || prefix_length < 1) - errmsg = "bad keyword"; - - /* Expect keyword, compression flag, compression type, language, translated - * keyword (both may be empty but are 0 terminated) then the text, which may - * be empty. - */ - else if (prefix_length + 5 > length) - errmsg = "truncated"; - - else if (buffer[prefix_length+1] == 0 || - (buffer[prefix_length+1] == 1 && - buffer[prefix_length+2] == PNG_COMPRESSION_TYPE_BASE)) - { - int compressed = buffer[prefix_length+1] != 0; - png_uint_32 language_offset, translated_keyword_offset; - png_alloc_size_t uncompressed_length = 0; - - /* Now the language tag */ - prefix_length += 3; - language_offset = prefix_length; - - for (; prefix_length < length && buffer[prefix_length] != 0; - ++prefix_length) - /* Empty loop */ ; - - /* WARNING: the length may be invalid here, this is checked below. */ - translated_keyword_offset = ++prefix_length; - - for (; prefix_length < length && buffer[prefix_length] != 0; - ++prefix_length) - /* Empty loop */ ; - - /* prefix_length should now be at the trailing '\0' of the translated - * keyword, but it may already be over the end. None of this arithmetic - * can overflow because chunks are at most 2^31 bytes long, but on 16-bit - * systems the available allocaton may overflow. - */ - ++prefix_length; - - if (!compressed && prefix_length <= length) - uncompressed_length = length - prefix_length; - - else if (compressed && prefix_length < length) - { - uncompressed_length = PNG_SIZE_MAX; - - /* TODO: at present png_decompress_chunk imposes a single application - * level memory limit, this should be split to different values for - * iCCP and text chunks. - */ - if (png_decompress_chunk(png_ptr, length, prefix_length, - &uncompressed_length, 1/*terminate*/) == Z_STREAM_END) - buffer = png_ptr->read_buffer; - - else - errmsg = png_ptr->zstream.msg; - } - - else - errmsg = "truncated"; - - if (errmsg == NULL) - { - png_text text; - - buffer[uncompressed_length+prefix_length] = 0; - - if (compressed != 0) - text.compression = PNG_ITXT_COMPRESSION_NONE; - - else - text.compression = PNG_ITXT_COMPRESSION_zTXt; - - text.key = (png_charp)buffer; - text.lang = (png_charp)buffer + language_offset; - text.lang_key = (png_charp)buffer + translated_keyword_offset; - text.text = (png_charp)buffer + prefix_length; - text.text_length = 0; - text.itxt_length = uncompressed_length; - - if (png_set_text_2(png_ptr, info_ptr, &text, 1)) - errmsg = "insufficient memory"; - } - } - - else - errmsg = "bad compression info"; - - if (errmsg != NULL) - png_chunk_benign_error(png_ptr, errmsg); -} -#endif - -#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED -/* Utility function for png_handle_unknown; set up png_ptr::unknown_chunk */ -static int -png_cache_unknown_chunk(png_structrp png_ptr, png_uint_32 length) -{ - png_alloc_size_t limit = PNG_SIZE_MAX; - - if (png_ptr->unknown_chunk.data != NULL) - { - png_free(png_ptr, png_ptr->unknown_chunk.data); - png_ptr->unknown_chunk.data = NULL; - } - -# ifdef PNG_SET_CHUNK_MALLOC_LIMIT_SUPPORTED - if (png_ptr->user_chunk_malloc_max > 0 && - png_ptr->user_chunk_malloc_max < limit) - limit = png_ptr->user_chunk_malloc_max; - -# elif PNG_USER_CHUNK_MALLOC_MAX > 0 - if (PNG_USER_CHUNK_MALLOC_MAX < limit) - limit = PNG_USER_CHUNK_MALLOC_MAX; -# endif - - if (length <= limit) - { - PNG_CSTRING_FROM_CHUNK(png_ptr->unknown_chunk.name, png_ptr->chunk_name); - /* The following is safe because of the PNG_SIZE_MAX init above */ - png_ptr->unknown_chunk.size = (png_size_t)length/*SAFE*/; - /* 'mode' is a flag array, only the bottom four bits matter here */ - png_ptr->unknown_chunk.location = (png_byte)png_ptr->mode/*SAFE*/; - - if (length == 0) - png_ptr->unknown_chunk.data = NULL; - - else - { - /* Do a 'warn' here - it is handled below. */ - png_ptr->unknown_chunk.data = png_voidcast(png_bytep, - png_malloc_warn(png_ptr, length)); - } - } - - if (png_ptr->unknown_chunk.data == NULL && length > 0) - { - /* This is benign because we clean up correctly */ - png_crc_finish(png_ptr, length); - png_chunk_benign_error(png_ptr, "unknown chunk exceeds memory limits"); - return 0; - } - - else - { - if (length > 0) - png_crc_read(png_ptr, png_ptr->unknown_chunk.data, length); - png_crc_finish(png_ptr, 0); - return 1; - } -} -#endif /* PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ - -/* Handle an unknown, or known but disabled, chunk */ -void /* PRIVATE */ -png_handle_unknown(png_structrp png_ptr, png_inforp info_ptr, - png_uint_32 length, int keep) -{ - int handled = 0; /* the chunk was handled */ - - png_debug(1, "in png_handle_unknown"); - -#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED - /* NOTE: this code is based on the code in libpng-1.4.12 except for fixing - * the bug which meant that setting a non-default behavior for a specific - * chunk would be ignored (the default was always used unless a user - * callback was installed). - * - * 'keep' is the value from the png_chunk_unknown_handling, the setting for - * this specific chunk_name, if PNG_HANDLE_AS_UNKNOWN_SUPPORTED, if not it - * will always be PNG_HANDLE_CHUNK_AS_DEFAULT and it needs to be set here. - * This is just an optimization to avoid multiple calls to the lookup - * function. - */ -# ifndef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - keep = png_chunk_unknown_handling(png_ptr, png_ptr->chunk_name); -# endif -# endif - - /* One of the following methods will read the chunk or skip it (at least one - * of these is always defined because this is the only way to switch on - * PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) - */ -# ifdef PNG_READ_USER_CHUNKS_SUPPORTED - /* The user callback takes precedence over the chunk keep value, but the - * keep value is still required to validate a save of a critical chunk. - */ - if (png_ptr->read_user_chunk_fn != NULL) - { - if (png_cache_unknown_chunk(png_ptr, length)) - { - /* Callback to user unknown chunk handler */ - int ret = (*(png_ptr->read_user_chunk_fn))(png_ptr, - &png_ptr->unknown_chunk); - - /* ret is: - * negative: An error occured, png_chunk_error will be called. - * zero: The chunk was not handled, the chunk will be discarded - * unless png_set_keep_unknown_chunks has been used to set - * a 'keep' behavior for this particular chunk, in which - * case that will be used. A critical chunk will cause an - * error at this point unless it is to be saved. - * positive: The chunk was handled, libpng will ignore/discard it. - */ - if (ret < 0) - png_chunk_error(png_ptr, "error in user chunk"); - - else if (ret == 0) - { - /* If the keep value is 'default' or 'never' override it, but - * still error out on critical chunks unless the keep value is - * 'always' While this is weird it is the behavior in 1.4.12. - * A possible improvement would be to obey the value set for the - * chunk, but this would be an API change that would probably - * damage some applications. - * - * The png_app_warning below catches the case that matters, where - * the application has not set specific save or ignore for this - * chunk or global save or ignore. - */ - if (keep < PNG_HANDLE_CHUNK_IF_SAFE) - { -# ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - if (png_ptr->unknown_default < PNG_HANDLE_CHUNK_IF_SAFE) - { - png_chunk_warning(png_ptr, "Saving unknown chunk:"); - png_app_warning(png_ptr, - "forcing save of an unhandled chunk;" - " please call png_set_keep_unknown_chunks"); - /* with keep = PNG_HANDLE_CHUNK_IF_SAFE */ - } -# endif - keep = PNG_HANDLE_CHUNK_IF_SAFE; - } - } - - else /* chunk was handled */ - { - handled = 1; - /* Critical chunks can be safely discarded at this point. */ - keep = PNG_HANDLE_CHUNK_NEVER; - } - } - - else - keep = PNG_HANDLE_CHUNK_NEVER; /* insufficient memory */ - } - - else - /* Use the SAVE_UNKNOWN_CHUNKS code or skip the chunk */ -# endif /* PNG_READ_USER_CHUNKS_SUPPORTED */ - -# ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED - { - /* keep is currently just the per-chunk setting, if there was no - * setting change it to the global default now (not that this may - * still be AS_DEFAULT) then obtain the cache of the chunk if required, - * if not simply skip the chunk. - */ - if (keep == PNG_HANDLE_CHUNK_AS_DEFAULT) - keep = png_ptr->unknown_default; - - if (keep == PNG_HANDLE_CHUNK_ALWAYS || - (keep == PNG_HANDLE_CHUNK_IF_SAFE && - PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))) - { - if (!png_cache_unknown_chunk(png_ptr, length)) - keep = PNG_HANDLE_CHUNK_NEVER; - } - - else - png_crc_finish(png_ptr, length); - } -# else -# ifndef PNG_READ_USER_CHUNKS_SUPPORTED -# error no method to support READ_UNKNOWN_CHUNKS -# endif - - { - /* If here there is no read callback pointer set and no support is - * compiled in to just save the unknown chunks, so simply skip this - * chunk. If 'keep' is something other than AS_DEFAULT or NEVER then - * the app has erroneously asked for unknown chunk saving when there - * is no support. - */ - if (keep > PNG_HANDLE_CHUNK_NEVER) - png_app_error(png_ptr, "no unknown chunk support available"); - - png_crc_finish(png_ptr, length); - } -# endif - -# ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED - /* Now store the chunk in the chunk list if appropriate, and if the limits - * permit it. - */ - if (keep == PNG_HANDLE_CHUNK_ALWAYS || - (keep == PNG_HANDLE_CHUNK_IF_SAFE && - PNG_CHUNK_ANCILLARY(png_ptr->chunk_name))) - { -# ifdef PNG_USER_LIMITS_SUPPORTED - switch (png_ptr->user_chunk_cache_max) - { - case 2: - png_ptr->user_chunk_cache_max = 1; - png_chunk_benign_error(png_ptr, "no space in chunk cache"); - /* FALL THROUGH */ - case 1: - /* NOTE: prior to 1.6.0 this case resulted in an unknown critical - * chunk being skipped, now there will be a hard error below. - */ - break; - - default: /* not at limit */ - --(png_ptr->user_chunk_cache_max); - /* FALL THROUGH */ - case 0: /* no limit */ -# endif /* PNG_USER_LIMITS_SUPPORTED */ - /* Here when the limit isn't reached or when limits are compiled - * out; store the chunk. - */ - png_set_unknown_chunks(png_ptr, info_ptr, - &png_ptr->unknown_chunk, 1); - handled = 1; -# ifdef PNG_USER_LIMITS_SUPPORTED - break; - } -# endif - } -# else /* no store support: the chunk must be handled by the user callback */ - PNG_UNUSED(info_ptr) -# endif - - /* Regardless of the error handling below the cached data (if any) can be - * freed now. Notice that the data is not freed if there is a png_error, but - * it will be freed by destroy_read_struct. - */ - if (png_ptr->unknown_chunk.data != NULL) - png_free(png_ptr, png_ptr->unknown_chunk.data); - png_ptr->unknown_chunk.data = NULL; - -#else /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ - /* There is no support to read an unknown chunk, so just skip it. */ - png_crc_finish(png_ptr, length); - PNG_UNUSED(info_ptr) - PNG_UNUSED(keep) -#endif /* !PNG_READ_UNKNOWN_CHUNKS_SUPPORTED */ - - /* Check for unhandled critical chunks */ - if (!handled && PNG_CHUNK_CRITICAL(png_ptr->chunk_name)) - png_chunk_error(png_ptr, "unhandled critical chunk"); -} - -/* This function is called to verify that a chunk name is valid. - * This function can't have the "critical chunk check" incorporated - * into it, since in the future we will need to be able to call user - * functions to handle unknown critical chunks after we check that - * the chunk name itself is valid. - */ - -/* Bit hacking: the test for an invalid byte in the 4 byte chunk name is: - * - * ((c) < 65 || (c) > 122 || ((c) > 90 && (c) < 97)) - */ - -void /* PRIVATE */ -png_check_chunk_name(png_structrp png_ptr, png_uint_32 chunk_name) -{ - int i; - - png_debug(1, "in png_check_chunk_name"); - - for (i=1; i<=4; ++i) - { - int c = chunk_name & 0xff; - - if (c < 65 || c > 122 || (c > 90 && c < 97)) - png_chunk_error(png_ptr, "invalid chunk type"); - - chunk_name >>= 8; - } -} - -/* Combines the row recently read in with the existing pixels in the row. This - * routine takes care of alpha and transparency if requested. This routine also - * handles the two methods of progressive display of interlaced images, - * depending on the 'display' value; if 'display' is true then the whole row - * (dp) is filled from the start by replicating the available pixels. If - * 'display' is false only those pixels present in the pass are filled in. - */ -void /* PRIVATE */ -png_combine_row(png_const_structrp png_ptr, png_bytep dp, int display) -{ - unsigned int pixel_depth = png_ptr->transformed_pixel_depth; - png_const_bytep sp = png_ptr->row_buf + 1; - png_uint_32 row_width = png_ptr->width; - unsigned int pass = png_ptr->pass; - png_bytep end_ptr = 0; - png_byte end_byte = 0; - unsigned int end_mask; - - png_debug(1, "in png_combine_row"); - - /* Added in 1.5.6: it should not be possible to enter this routine until at - * least one row has been read from the PNG data and transformed. - */ - if (pixel_depth == 0) - png_error(png_ptr, "internal row logic error"); - - /* Added in 1.5.4: the pixel depth should match the information returned by - * any call to png_read_update_info at this point. Do not continue if we got - * this wrong. - */ - if (png_ptr->info_rowbytes != 0 && png_ptr->info_rowbytes != - PNG_ROWBYTES(pixel_depth, row_width)) - png_error(png_ptr, "internal row size calculation error"); - - /* Don't expect this to ever happen: */ - if (row_width == 0) - png_error(png_ptr, "internal row width error"); - - /* Preserve the last byte in cases where only part of it will be overwritten, - * the multiply below may overflow, we don't care because ANSI-C guarantees - * we get the low bits. - */ - end_mask = (pixel_depth * row_width) & 7; - if (end_mask != 0) - { - /* end_ptr == NULL is a flag to say do nothing */ - end_ptr = dp + PNG_ROWBYTES(pixel_depth, row_width) - 1; - end_byte = *end_ptr; -# ifdef PNG_READ_PACKSWAP_SUPPORTED - if (png_ptr->transformations & PNG_PACKSWAP) /* little-endian byte */ - end_mask = 0xff << end_mask; - - else /* big-endian byte */ -# endif - end_mask = 0xff >> end_mask; - /* end_mask is now the bits to *keep* from the destination row */ - } - - /* For non-interlaced images this reduces to a memcpy(). A memcpy() - * will also happen if interlacing isn't supported or if the application - * does not call png_set_interlace_handling(). In the latter cases the - * caller just gets a sequence of the unexpanded rows from each interlace - * pass. - */ -#ifdef PNG_READ_INTERLACING_SUPPORTED - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE) && - pass < 6 && (display == 0 || - /* The following copies everything for 'display' on passes 0, 2 and 4. */ - (display == 1 && (pass & 1) != 0))) - { - /* Narrow images may have no bits in a pass; the caller should handle - * this, but this test is cheap: - */ - if (row_width <= PNG_PASS_START_COL(pass)) - return; - - if (pixel_depth < 8) - { - /* For pixel depths up to 4 bpp the 8-pixel mask can be expanded to fit - * into 32 bits, then a single loop over the bytes using the four byte - * values in the 32-bit mask can be used. For the 'display' option the - * expanded mask may also not require any masking within a byte. To - * make this work the PACKSWAP option must be taken into account - it - * simply requires the pixels to be reversed in each byte. - * - * The 'regular' case requires a mask for each of the first 6 passes, - * the 'display' case does a copy for the even passes in the range - * 0..6. This has already been handled in the test above. - * - * The masks are arranged as four bytes with the first byte to use in - * the lowest bits (little-endian) regardless of the order (PACKSWAP or - * not) of the pixels in each byte. - * - * NOTE: the whole of this logic depends on the caller of this function - * only calling it on rows appropriate to the pass. This function only - * understands the 'x' logic; the 'y' logic is handled by the caller. - * - * The following defines allow generation of compile time constant bit - * masks for each pixel depth and each possibility of swapped or not - * swapped bytes. Pass 'p' is in the range 0..6; 'x', a pixel index, - * is in the range 0..7; and the result is 1 if the pixel is to be - * copied in the pass, 0 if not. 'S' is for the sparkle method, 'B' - * for the block method. - * - * With some compilers a compile time expression of the general form: - * - * (shift >= 32) ? (a >> (shift-32)) : (b >> shift) - * - * Produces warnings with values of 'shift' in the range 33 to 63 - * because the right hand side of the ?: expression is evaluated by - * the compiler even though it isn't used. Microsoft Visual C (various - * versions) and the Intel C compiler are known to do this. To avoid - * this the following macros are used in 1.5.6. This is a temporary - * solution to avoid destabilizing the code during the release process. - */ -# if PNG_USE_COMPILE_TIME_MASKS -# define PNG_LSR(x,s) ((x)>>((s) & 0x1f)) -# define PNG_LSL(x,s) ((x)<<((s) & 0x1f)) -# else -# define PNG_LSR(x,s) ((x)>>(s)) -# define PNG_LSL(x,s) ((x)<<(s)) -# endif -# define S_COPY(p,x) (((p)<4 ? PNG_LSR(0x80088822,(3-(p))*8+(7-(x))) :\ - PNG_LSR(0xaa55ff00,(7-(p))*8+(7-(x)))) & 1) -# define B_COPY(p,x) (((p)<4 ? PNG_LSR(0xff0fff33,(3-(p))*8+(7-(x))) :\ - PNG_LSR(0xff55ff00,(7-(p))*8+(7-(x)))) & 1) - - /* Return a mask for pass 'p' pixel 'x' at depth 'd'. The mask is - * little endian - the first pixel is at bit 0 - however the extra - * parameter 's' can be set to cause the mask position to be swapped - * within each byte, to match the PNG format. This is done by XOR of - * the shift with 7, 6 or 4 for bit depths 1, 2 and 4. - */ -# define PIXEL_MASK(p,x,d,s) \ - (PNG_LSL(((PNG_LSL(1U,(d)))-1),(((x)*(d))^((s)?8-(d):0)))) - - /* Hence generate the appropriate 'block' or 'sparkle' pixel copy mask. - */ -# define S_MASKx(p,x,d,s) (S_COPY(p,x)?PIXEL_MASK(p,x,d,s):0) -# define B_MASKx(p,x,d,s) (B_COPY(p,x)?PIXEL_MASK(p,x,d,s):0) - - /* Combine 8 of these to get the full mask. For the 1-bpp and 2-bpp - * cases the result needs replicating, for the 4-bpp case the above - * generates a full 32 bits. - */ -# define MASK_EXPAND(m,d) ((m)*((d)==1?0x01010101:((d)==2?0x00010001:1))) - -# define S_MASK(p,d,s) MASK_EXPAND(S_MASKx(p,0,d,s) + S_MASKx(p,1,d,s) +\ - S_MASKx(p,2,d,s) + S_MASKx(p,3,d,s) + S_MASKx(p,4,d,s) +\ - S_MASKx(p,5,d,s) + S_MASKx(p,6,d,s) + S_MASKx(p,7,d,s), d) - -# define B_MASK(p,d,s) MASK_EXPAND(B_MASKx(p,0,d,s) + B_MASKx(p,1,d,s) +\ - B_MASKx(p,2,d,s) + B_MASKx(p,3,d,s) + B_MASKx(p,4,d,s) +\ - B_MASKx(p,5,d,s) + B_MASKx(p,6,d,s) + B_MASKx(p,7,d,s), d) - -#if PNG_USE_COMPILE_TIME_MASKS - /* Utility macros to construct all the masks for a depth/swap - * combination. The 's' parameter says whether the format is PNG - * (big endian bytes) or not. Only the three odd-numbered passes are - * required for the display/block algorithm. - */ -# define S_MASKS(d,s) { S_MASK(0,d,s), S_MASK(1,d,s), S_MASK(2,d,s),\ - S_MASK(3,d,s), S_MASK(4,d,s), S_MASK(5,d,s) } - -# define B_MASKS(d,s) { B_MASK(1,d,s), B_MASK(3,d,s), B_MASK(5,d,s) } - -# define DEPTH_INDEX(d) ((d)==1?0:((d)==2?1:2)) - - /* Hence the pre-compiled masks indexed by PACKSWAP (or not), depth and - * then pass: - */ - static PNG_CONST png_uint_32 row_mask[2/*PACKSWAP*/][3/*depth*/][6] = - { - /* Little-endian byte masks for PACKSWAP */ - { S_MASKS(1,0), S_MASKS(2,0), S_MASKS(4,0) }, - /* Normal (big-endian byte) masks - PNG format */ - { S_MASKS(1,1), S_MASKS(2,1), S_MASKS(4,1) } - }; - - /* display_mask has only three entries for the odd passes, so index by - * pass>>1. - */ - static PNG_CONST png_uint_32 display_mask[2][3][3] = - { - /* Little-endian byte masks for PACKSWAP */ - { B_MASKS(1,0), B_MASKS(2,0), B_MASKS(4,0) }, - /* Normal (big-endian byte) masks - PNG format */ - { B_MASKS(1,1), B_MASKS(2,1), B_MASKS(4,1) } - }; - -# define MASK(pass,depth,display,png)\ - ((display)?display_mask[png][DEPTH_INDEX(depth)][pass>>1]:\ - row_mask[png][DEPTH_INDEX(depth)][pass]) - -#else /* !PNG_USE_COMPILE_TIME_MASKS */ - /* This is the runtime alternative: it seems unlikely that this will - * ever be either smaller or faster than the compile time approach. - */ -# define MASK(pass,depth,display,png)\ - ((display)?B_MASK(pass,depth,png):S_MASK(pass,depth,png)) -#endif /* !PNG_USE_COMPILE_TIME_MASKS */ - - /* Use the appropriate mask to copy the required bits. In some cases - * the byte mask will be 0 or 0xff; optimize these cases. row_width is - * the number of pixels, but the code copies bytes, so it is necessary - * to special case the end. - */ - png_uint_32 pixels_per_byte = 8 / pixel_depth; - png_uint_32 mask; - -# ifdef PNG_READ_PACKSWAP_SUPPORTED - if (png_ptr->transformations & PNG_PACKSWAP) - mask = MASK(pass, pixel_depth, display, 0); - - else -# endif - mask = MASK(pass, pixel_depth, display, 1); - - for (;;) - { - png_uint_32 m; - - /* It doesn't matter in the following if png_uint_32 has more than - * 32 bits because the high bits always match those in m<<24; it is, - * however, essential to use OR here, not +, because of this. - */ - m = mask; - mask = (m >> 8) | (m << 24); /* rotate right to good compilers */ - m &= 0xff; - - if (m != 0) /* something to copy */ - { - if (m != 0xff) - *dp = (png_byte)((*dp & ~m) | (*sp & m)); - else - *dp = *sp; - } - - /* NOTE: this may overwrite the last byte with garbage if the image - * is not an exact number of bytes wide; libpng has always done - * this. - */ - if (row_width <= pixels_per_byte) - break; /* May need to restore part of the last byte */ - - row_width -= pixels_per_byte; - ++dp; - ++sp; - } - } - - else /* pixel_depth >= 8 */ - { - unsigned int bytes_to_copy, bytes_to_jump; - - /* Validate the depth - it must be a multiple of 8 */ - if (pixel_depth & 7) - png_error(png_ptr, "invalid user transform pixel depth"); - - pixel_depth >>= 3; /* now in bytes */ - row_width *= pixel_depth; - - /* Regardless of pass number the Adam 7 interlace always results in a - * fixed number of pixels to copy then to skip. There may be a - * different number of pixels to skip at the start though. - */ - { - unsigned int offset = PNG_PASS_START_COL(pass) * pixel_depth; - - row_width -= offset; - dp += offset; - sp += offset; - } - - /* Work out the bytes to copy. */ - if (display != 0) - { - /* When doing the 'block' algorithm the pixel in the pass gets - * replicated to adjacent pixels. This is why the even (0,2,4,6) - * passes are skipped above - the entire expanded row is copied. - */ - bytes_to_copy = (1<<((6-pass)>>1)) * pixel_depth; - - /* But don't allow this number to exceed the actual row width. */ - if (bytes_to_copy > row_width) - bytes_to_copy = row_width; - } - - else /* normal row; Adam7 only ever gives us one pixel to copy. */ - bytes_to_copy = pixel_depth; - - /* In Adam7 there is a constant offset between where the pixels go. */ - bytes_to_jump = PNG_PASS_COL_OFFSET(pass) * pixel_depth; - - /* And simply copy these bytes. Some optimization is possible here, - * depending on the value of 'bytes_to_copy'. Special case the low - * byte counts, which we know to be frequent. - * - * Notice that these cases all 'return' rather than 'break' - this - * avoids an unnecessary test on whether to restore the last byte - * below. - */ - switch (bytes_to_copy) - { - case 1: - for (;;) - { - *dp = *sp; - - if (row_width <= bytes_to_jump) - return; - - dp += bytes_to_jump; - sp += bytes_to_jump; - row_width -= bytes_to_jump; - } - - case 2: - /* There is a possibility of a partial copy at the end here; this - * slows the code down somewhat. - */ - do - { - dp[0] = sp[0], dp[1] = sp[1]; - - if (row_width <= bytes_to_jump) - return; - - sp += bytes_to_jump; - dp += bytes_to_jump; - row_width -= bytes_to_jump; - } - while (row_width > 1); - - /* And there can only be one byte left at this point: */ - *dp = *sp; - return; - - case 3: - /* This can only be the RGB case, so each copy is exactly one - * pixel and it is not necessary to check for a partial copy. - */ - for(;;) - { - dp[0] = sp[0], dp[1] = sp[1], dp[2] = sp[2]; - - if (row_width <= bytes_to_jump) - return; - - sp += bytes_to_jump; - dp += bytes_to_jump; - row_width -= bytes_to_jump; - } - - default: -#if PNG_ALIGN_TYPE != PNG_ALIGN_NONE - /* Check for double byte alignment and, if possible, use a - * 16-bit copy. Don't attempt this for narrow images - ones that - * are less than an interlace panel wide. Don't attempt it for - * wide bytes_to_copy either - use the memcpy there. - */ - if (bytes_to_copy < 16 /*else use memcpy*/ && - png_isaligned(dp, png_uint_16) && - png_isaligned(sp, png_uint_16) && - bytes_to_copy % (sizeof (png_uint_16)) == 0 && - bytes_to_jump % (sizeof (png_uint_16)) == 0) - { - /* Everything is aligned for png_uint_16 copies, but try for - * png_uint_32 first. - */ - if (png_isaligned(dp, png_uint_32) && - png_isaligned(sp, png_uint_32) && - bytes_to_copy % (sizeof (png_uint_32)) == 0 && - bytes_to_jump % (sizeof (png_uint_32)) == 0) - { - png_uint_32p dp32 = png_aligncast(png_uint_32p,dp); - png_const_uint_32p sp32 = png_aligncastconst( - png_const_uint_32p, sp); - size_t skip = (bytes_to_jump-bytes_to_copy) / - (sizeof (png_uint_32)); - - do - { - size_t c = bytes_to_copy; - do - { - *dp32++ = *sp32++; - c -= (sizeof (png_uint_32)); - } - while (c > 0); - - if (row_width <= bytes_to_jump) - return; - - dp32 += skip; - sp32 += skip; - row_width -= bytes_to_jump; - } - while (bytes_to_copy <= row_width); - - /* Get to here when the row_width truncates the final copy. - * There will be 1-3 bytes left to copy, so don't try the - * 16-bit loop below. - */ - dp = (png_bytep)dp32; - sp = (png_const_bytep)sp32; - do - *dp++ = *sp++; - while (--row_width > 0); - return; - } - - /* Else do it in 16-bit quantities, but only if the size is - * not too large. - */ - else - { - png_uint_16p dp16 = png_aligncast(png_uint_16p, dp); - png_const_uint_16p sp16 = png_aligncastconst( - png_const_uint_16p, sp); - size_t skip = (bytes_to_jump-bytes_to_copy) / - (sizeof (png_uint_16)); - - do - { - size_t c = bytes_to_copy; - do - { - *dp16++ = *sp16++; - c -= (sizeof (png_uint_16)); - } - while (c > 0); - - if (row_width <= bytes_to_jump) - return; - - dp16 += skip; - sp16 += skip; - row_width -= bytes_to_jump; - } - while (bytes_to_copy <= row_width); - - /* End of row - 1 byte left, bytes_to_copy > row_width: */ - dp = (png_bytep)dp16; - sp = (png_const_bytep)sp16; - do - *dp++ = *sp++; - while (--row_width > 0); - return; - } - } -#endif /* PNG_ALIGN_ code */ - - /* The true default - use a memcpy: */ - for (;;) - { - memcpy(dp, sp, bytes_to_copy); - - if (row_width <= bytes_to_jump) - return; - - sp += bytes_to_jump; - dp += bytes_to_jump; - row_width -= bytes_to_jump; - if (bytes_to_copy > row_width) - bytes_to_copy = row_width; - } - } - - /* NOT REACHED*/ - } /* pixel_depth >= 8 */ - - /* Here if pixel_depth < 8 to check 'end_ptr' below. */ - } - else -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - - /* If here then the switch above wasn't used so just memcpy the whole row - * from the temporary row buffer (notice that this overwrites the end of the - * destination row if it is a partial byte.) - */ - memcpy(dp, sp, PNG_ROWBYTES(pixel_depth, row_width)); - - /* Restore the overwritten bits from the last byte if necessary. */ - if (end_ptr != NULL) - *end_ptr = (png_byte)((end_byte & end_mask) | (*end_ptr & ~end_mask)); -} - -#ifdef PNG_READ_INTERLACING_SUPPORTED -void /* PRIVATE */ -png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass, - png_uint_32 transformations /* Because these may affect the byte layout */) -{ - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - /* Offset to next interlace block */ - static PNG_CONST int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - png_debug(1, "in png_do_read_interlace"); - if (row != NULL && row_info != NULL) - { - png_uint_32 final_width; - - final_width = row_info->width * png_pass_inc[pass]; - - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 3); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 3); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_byte v; - png_uint_32 i; - int j; - -#ifdef PNG_READ_PACKSWAP_SUPPORTED - if (transformations & PNG_PACKSWAP) - { - sshift = (int)((row_info->width + 7) & 0x07); - dshift = (int)((final_width + 7) & 0x07); - s_start = 7; - s_end = 0; - s_inc = -1; - } - - else -#endif - { - sshift = 7 - (int)((row_info->width + 7) & 0x07); - dshift = 7 - (int)((final_width + 7) & 0x07); - s_start = 0; - s_end = 7; - s_inc = 1; - } - - for (i = 0; i < row_info->width; i++) - { - v = (png_byte)((*sp >> sshift) & 0x01); - for (j = 0; j < jstop; j++) - { - unsigned int tmp = *dp & (0x7f7f >> (7 - dshift)); - tmp |= v << dshift; - *dp = (png_byte)(tmp & 0xff); - - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - - else - dshift += s_inc; - } - - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - - else - sshift += s_inc; - } - break; - } - - case 2: - { - png_bytep sp = row + (png_uint_32)((row_info->width - 1) >> 2); - png_bytep dp = row + (png_uint_32)((final_width - 1) >> 2); - int sshift, dshift; - int s_start, s_end, s_inc; - int jstop = png_pass_inc[pass]; - png_uint_32 i; - -#ifdef PNG_READ_PACKSWAP_SUPPORTED - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 3) & 0x03) << 1); - dshift = (int)(((final_width + 3) & 0x03) << 1); - s_start = 6; - s_end = 0; - s_inc = -2; - } - - else -#endif - { - sshift = (int)((3 - ((row_info->width + 3) & 0x03)) << 1); - dshift = (int)((3 - ((final_width + 3) & 0x03)) << 1); - s_start = 0; - s_end = 6; - s_inc = 2; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v; - int j; - - v = (png_byte)((*sp >> sshift) & 0x03); - for (j = 0; j < jstop; j++) - { - unsigned int tmp = *dp & (0x3f3f >> (6 - dshift)); - tmp |= v << dshift; - *dp = (png_byte)(tmp & 0xff); - - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - - else - dshift += s_inc; - } - - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - - else - sshift += s_inc; - } - break; - } - - case 4: - { - png_bytep sp = row + (png_size_t)((row_info->width - 1) >> 1); - png_bytep dp = row + (png_size_t)((final_width - 1) >> 1); - int sshift, dshift; - int s_start, s_end, s_inc; - png_uint_32 i; - int jstop = png_pass_inc[pass]; - -#ifdef PNG_READ_PACKSWAP_SUPPORTED - if (transformations & PNG_PACKSWAP) - { - sshift = (int)(((row_info->width + 1) & 0x01) << 2); - dshift = (int)(((final_width + 1) & 0x01) << 2); - s_start = 4; - s_end = 0; - s_inc = -4; - } - - else -#endif - { - sshift = (int)((1 - ((row_info->width + 1) & 0x01)) << 2); - dshift = (int)((1 - ((final_width + 1) & 0x01)) << 2); - s_start = 0; - s_end = 4; - s_inc = 4; - } - - for (i = 0; i < row_info->width; i++) - { - png_byte v = (png_byte)((*sp >> sshift) & 0x0f); - int j; - - for (j = 0; j < jstop; j++) - { - unsigned int tmp = *dp & (0xf0f >> (4 - dshift)); - tmp |= v << dshift; - *dp = (png_byte)(tmp & 0xff); - - if (dshift == s_end) - { - dshift = s_start; - dp--; - } - - else - dshift += s_inc; - } - - if (sshift == s_end) - { - sshift = s_start; - sp--; - } - - else - sshift += s_inc; - } - break; - } - - default: - { - png_size_t pixel_bytes = (row_info->pixel_depth >> 3); - - png_bytep sp = row + (png_size_t)(row_info->width - 1) - * pixel_bytes; - - png_bytep dp = row + (png_size_t)(final_width - 1) * pixel_bytes; - - int jstop = png_pass_inc[pass]; - png_uint_32 i; - - for (i = 0; i < row_info->width; i++) - { - png_byte v[8]; /* SAFE; pixel_depth does not exceed 64 */ - int j; - - memcpy(v, sp, pixel_bytes); - - for (j = 0; j < jstop; j++) - { - memcpy(dp, v, pixel_bytes); - dp -= pixel_bytes; - } - - sp -= pixel_bytes; - } - break; - } - } - - row_info->width = final_width; - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, final_width); - } -#ifndef PNG_READ_PACKSWAP_SUPPORTED - PNG_UNUSED(transformations) /* Silence compiler warning */ -#endif -} -#endif /* PNG_READ_INTERLACING_SUPPORTED */ - -static void -png_read_filter_row_sub(png_row_infop row_info, png_bytep row, - png_const_bytep prev_row) -{ - png_size_t i; - png_size_t istop = row_info->rowbytes; - unsigned int bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp = row + bpp; - - PNG_UNUSED(prev_row) - - for (i = bpp; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*(rp-bpp))) & 0xff); - rp++; - } -} - -static void -png_read_filter_row_up(png_row_infop row_info, png_bytep row, - png_const_bytep prev_row) -{ - png_size_t i; - png_size_t istop = row_info->rowbytes; - png_bytep rp = row; - png_const_bytep pp = prev_row; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff); - rp++; - } -} - -static void -png_read_filter_row_avg(png_row_infop row_info, png_bytep row, - png_const_bytep prev_row) -{ - png_size_t i; - png_bytep rp = row; - png_const_bytep pp = prev_row; - unsigned int bpp = (row_info->pixel_depth + 7) >> 3; - png_size_t istop = row_info->rowbytes - bpp; - - for (i = 0; i < bpp; i++) - { - *rp = (png_byte)(((int)(*rp) + - ((int)(*pp++) / 2 )) & 0xff); - - rp++; - } - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(((int)(*rp) + - (int)(*pp++ + *(rp-bpp)) / 2 ) & 0xff); - - rp++; - } -} - -static void -png_read_filter_row_paeth_1byte_pixel(png_row_infop row_info, png_bytep row, - png_const_bytep prev_row) -{ - png_bytep rp_end = row + row_info->rowbytes; - int a, c; - - /* First pixel/byte */ - c = *prev_row++; - a = *row + c; - *row++ = (png_byte)a; - - /* Remainder */ - while (row < rp_end) - { - int b, pa, pb, pc, p; - - a &= 0xff; /* From previous iteration or start */ - b = *prev_row++; - - p = b - c; - pc = a - c; - -# ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -# else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -# endif - - /* Find the best predictor, the least of pa, pb, pc favoring the earlier - * ones in the case of a tie. - */ - if (pb < pa) pa = pb, a = b; - if (pc < pa) a = c; - - /* Calculate the current pixel in a, and move the previous row pixel to c - * for the next time round the loop - */ - c = b; - a += *row; - *row++ = (png_byte)a; - } -} - -static void -png_read_filter_row_paeth_multibyte_pixel(png_row_infop row_info, png_bytep row, - png_const_bytep prev_row) -{ - int bpp = (row_info->pixel_depth + 7) >> 3; - png_bytep rp_end = row + bpp; - - /* Process the first pixel in the row completely (this is the same as 'up' - * because there is only one candidate predictor for the first row). - */ - while (row < rp_end) - { - int a = *row + *prev_row++; - *row++ = (png_byte)a; - } - - /* Remainder */ - rp_end += row_info->rowbytes - bpp; - - while (row < rp_end) - { - int a, b, c, pa, pb, pc, p; - - c = *(prev_row - bpp); - a = *(row - bpp); - b = *prev_row++; - - p = b - c; - pc = a - c; - -# ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -# else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -# endif - - if (pb < pa) pa = pb, a = b; - if (pc < pa) a = c; - - a += *row; - *row++ = (png_byte)a; - } -} - -static void -png_init_filter_functions(png_structrp pp) - /* This function is called once for every PNG image (except for PNG images - * that only use PNG_FILTER_VALUE_NONE for all rows) to set the - * implementations required to reverse the filtering of PNG rows. Reversing - * the filter is the first transformation performed on the row data. It is - * performed in place, therefore an implementation can be selected based on - * the image pixel format. If the implementation depends on image width then - * take care to ensure that it works correctly if the image is interlaced - - * interlacing causes the actual row width to vary. - */ -{ - unsigned int bpp = (pp->pixel_depth + 7) >> 3; - - pp->read_filter[PNG_FILTER_VALUE_SUB-1] = png_read_filter_row_sub; - pp->read_filter[PNG_FILTER_VALUE_UP-1] = png_read_filter_row_up; - pp->read_filter[PNG_FILTER_VALUE_AVG-1] = png_read_filter_row_avg; - if (bpp == 1) - pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = - png_read_filter_row_paeth_1byte_pixel; - else - pp->read_filter[PNG_FILTER_VALUE_PAETH-1] = - png_read_filter_row_paeth_multibyte_pixel; - -#ifdef PNG_FILTER_OPTIMIZATIONS - /* To use this define PNG_FILTER_OPTIMIZATIONS as the name of a function to - * call to install hardware optimizations for the above functions; simply - * replace whatever elements of the pp->read_filter[] array with a hardware - * specific (or, for that matter, generic) optimization. - * - * To see an example of this examine what configure.ac does when - * --enable-arm-neon is specified on the command line. - */ - PNG_FILTER_OPTIMIZATIONS(pp, bpp); -#endif -} - -void /* PRIVATE */ -png_read_filter_row(png_structrp pp, png_row_infop row_info, png_bytep row, - png_const_bytep prev_row, int filter) -{ - /* OPTIMIZATION: DO NOT MODIFY THIS FUNCTION, instead #define - * PNG_FILTER_OPTIMIZATIONS to a function that overrides the generic - * implementations. See png_init_filter_functions above. - */ - if (filter > PNG_FILTER_VALUE_NONE && filter < PNG_FILTER_VALUE_LAST) - { - if (pp->read_filter[0] == NULL) - png_init_filter_functions(pp); - - pp->read_filter[filter-1](row_info, row, prev_row); - } -} - -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED -void /* PRIVATE */ -png_read_IDAT_data(png_structrp png_ptr, png_bytep output, - png_alloc_size_t avail_out) -{ - /* Loop reading IDATs and decompressing the result into output[avail_out] */ - png_ptr->zstream.next_out = output; - png_ptr->zstream.avail_out = 0; /* safety: set below */ - - if (output == NULL) - avail_out = 0; - - do - { - int ret; - png_byte tmpbuf[PNG_INFLATE_BUF_SIZE]; - - if (png_ptr->zstream.avail_in == 0) - { - uInt avail_in; - png_bytep buffer; - - while (png_ptr->idat_size == 0) - { - png_crc_finish(png_ptr, 0); - - png_ptr->idat_size = png_read_chunk_header(png_ptr); - /* This is an error even in the 'check' case because the code just - * consumed a non-IDAT header. - */ - if (png_ptr->chunk_name != png_IDAT) - png_error(png_ptr, "Not enough image data"); - } - - avail_in = png_ptr->IDAT_read_size; - - if (avail_in > png_ptr->idat_size) - avail_in = (uInt)png_ptr->idat_size; - - /* A PNG with a gradually increasing IDAT size will defeat this attempt - * to minimize memory usage by causing lots of re-allocs, but - * realistically doing IDAT_read_size re-allocs is not likely to be a - * big problem. - */ - buffer = png_read_buffer(png_ptr, avail_in, 0/*error*/); - - png_crc_read(png_ptr, buffer, avail_in); - png_ptr->idat_size -= avail_in; - - png_ptr->zstream.next_in = buffer; - png_ptr->zstream.avail_in = avail_in; - } - - /* And set up the output side. */ - if (output != NULL) /* standard read */ - { - uInt out = ZLIB_IO_MAX; - - if (out > avail_out) - out = (uInt)avail_out; - - avail_out -= out; - png_ptr->zstream.avail_out = out; - } - - else /* after last row, checking for end */ - { - png_ptr->zstream.next_out = tmpbuf; - png_ptr->zstream.avail_out = (sizeof tmpbuf); - } - - /* Use NO_FLUSH; this gives zlib the maximum opportunity to optimize the - * process. If the LZ stream is truncated the sequential reader will - * terminally damage the stream, above, by reading the chunk header of the - * following chunk (it then exits with png_error). - * - * TODO: deal more elegantly with truncated IDAT lists. - */ - ret = inflate(&png_ptr->zstream, Z_NO_FLUSH); - - /* Take the unconsumed output back. */ - if (output != NULL) - avail_out += png_ptr->zstream.avail_out; - - else /* avail_out counts the extra bytes */ - avail_out += (sizeof tmpbuf) - png_ptr->zstream.avail_out; - - png_ptr->zstream.avail_out = 0; - - if (ret == Z_STREAM_END) - { - /* Do this for safety; we won't read any more into this row. */ - png_ptr->zstream.next_out = NULL; - - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; - - if (png_ptr->zstream.avail_in > 0 || png_ptr->idat_size > 0) - png_chunk_benign_error(png_ptr, "Extra compressed data"); - break; - } - - if (ret != Z_OK) - { - png_zstream_error(png_ptr, ret); - - if (output != NULL) - png_chunk_error(png_ptr, png_ptr->zstream.msg); - - else /* checking */ - { - png_chunk_benign_error(png_ptr, png_ptr->zstream.msg); - return; - } - } - } while (avail_out > 0); - - if (avail_out > 0) - { - /* The stream ended before the image; this is the same as too few IDATs so - * should be handled the same way. - */ - if (output != NULL) - png_error(png_ptr, "Not enough image data"); - - else /* the deflate stream contained extra data */ - png_chunk_benign_error(png_ptr, "Too much image data"); - } -} - -void /* PRIVATE */ -png_read_finish_IDAT(png_structrp png_ptr) -{ - /* We don't need any more data and the stream should have ended, however the - * LZ end code may actually not have been processed. In this case we must - * read it otherwise stray unread IDAT data or, more likely, an IDAT chunk - * may still remain to be consumed. - */ - if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) - { - /* The NULL causes png_read_IDAT_data to swallow any remaining bytes in - * the compressed stream, but the stream may be damaged too, so even after - * this call we may need to terminate the zstream ownership. - */ - png_read_IDAT_data(png_ptr, NULL, 0); - png_ptr->zstream.next_out = NULL; /* safety */ - - /* Now clear everything out for safety; the following may not have been - * done. - */ - if (!(png_ptr->flags & PNG_FLAG_ZSTREAM_ENDED)) - { - png_ptr->mode |= PNG_AFTER_IDAT; - png_ptr->flags |= PNG_FLAG_ZSTREAM_ENDED; - } - } - - /* If the zstream has not been released do it now *and* terminate the reading - * of the final IDAT chunk. - */ - if (png_ptr->zowner == png_IDAT) - { - /* Always do this; the pointers otherwise point into the read buffer. */ - png_ptr->zstream.next_in = NULL; - png_ptr->zstream.avail_in = 0; - - /* Now we no longer own the zstream. */ - png_ptr->zowner = 0; - - /* The slightly weird semantics of the sequential IDAT reading is that we - * are always in or at the end of an IDAT chunk, so we always need to do a - * crc_finish here. If idat_size is non-zero we also need to read the - * spurious bytes at the end of the chunk now. - */ - (void)png_crc_finish(png_ptr, png_ptr->idat_size); - } -} - -void /* PRIVATE */ -png_read_finish_row(png_structrp png_ptr) -{ - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* Start of interlace block in the y direction */ - static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* Offset to next interlace block in the y direction */ - static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; - - png_debug(1, "in png_read_finish_row"); - png_ptr->row_number++; - if (png_ptr->row_number < png_ptr->num_rows) - return; - - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - - /* TO DO: don't do this if prev_row isn't needed (requires - * read-ahead of the next row's filter byte. - */ - memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - - do - { - png_ptr->pass++; - - if (png_ptr->pass >= 7) - break; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - } - - else /* if (png_ptr->transformations & PNG_INTERLACE) */ - break; /* libpng deinterlacing sees every row */ - - } while (png_ptr->num_rows == 0 || png_ptr->iwidth == 0); - - if (png_ptr->pass < 7) - return; - } - - /* Here after at the end of the last row of the last pass. */ - png_read_finish_IDAT(png_ptr); -} -#endif /* PNG_SEQUENTIAL_READ_SUPPORTED */ - -void /* PRIVATE */ -png_read_start_row(png_structrp png_ptr) -{ - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* Start of interlace block in the y direction */ - static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* Offset to next interlace block in the y direction */ - static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; - - int max_pixel_depth; - png_size_t row_bytes; - - png_debug(1, "in png_read_start_row"); - -#ifdef PNG_READ_TRANSFORMS_SUPPORTED - png_init_read_transformations(png_ptr); -#endif - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - - else - png_ptr->num_rows = png_ptr->height; - - png_ptr->iwidth = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - } - - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->iwidth = png_ptr->width; - } - - max_pixel_depth = png_ptr->pixel_depth; - - /* WARNING: * png_read_transform_info (pngrtran.c) performs a simpliar set of - * calculations to calculate the final pixel depth, then - * png_do_read_transforms actually does the transforms. This means that the - * code which effectively calculates this value is actually repeated in three - * separate places. They must all match. Innocent changes to the order of - * transformations can and will break libpng in a way that causes memory - * overwrites. - * - * TODO: fix this. - */ -#ifdef PNG_READ_PACK_SUPPORTED - if ((png_ptr->transformations & PNG_PACK) && png_ptr->bit_depth < 8) - max_pixel_depth = 8; -#endif - -#ifdef PNG_READ_EXPAND_SUPPORTED - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (png_ptr->num_trans) - max_pixel_depth = 32; - - else - max_pixel_depth = 24; - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth < 8) - max_pixel_depth = 8; - - if (png_ptr->num_trans) - max_pixel_depth *= 2; - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB) - { - if (png_ptr->num_trans) - { - max_pixel_depth *= 4; - max_pixel_depth /= 3; - } - } - } -#endif - -#ifdef PNG_READ_EXPAND_16_SUPPORTED - if (png_ptr->transformations & PNG_EXPAND_16) - { -# ifdef PNG_READ_EXPAND_SUPPORTED - /* In fact it is an error if it isn't supported, but checking is - * the safe way. - */ - if (png_ptr->transformations & PNG_EXPAND) - { - if (png_ptr->bit_depth < 16) - max_pixel_depth *= 2; - } - else -# endif - png_ptr->transformations &= ~PNG_EXPAND_16; - } -#endif - -#ifdef PNG_READ_FILLER_SUPPORTED - if (png_ptr->transformations & (PNG_FILLER)) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_GRAY) - { - if (max_pixel_depth <= 8) - max_pixel_depth = 16; - - else - max_pixel_depth = 32; - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB || - png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - if (max_pixel_depth <= 32) - max_pixel_depth = 32; - - else - max_pixel_depth = 64; - } - } -#endif - -#ifdef PNG_READ_GRAY_TO_RGB_SUPPORTED - if (png_ptr->transformations & PNG_GRAY_TO_RGB) - { - if ( -#ifdef PNG_READ_EXPAND_SUPPORTED - (png_ptr->num_trans && (png_ptr->transformations & PNG_EXPAND)) || -#endif -#ifdef PNG_READ_FILLER_SUPPORTED - (png_ptr->transformations & (PNG_FILLER)) || -#endif - png_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (max_pixel_depth <= 16) - max_pixel_depth = 32; - - else - max_pixel_depth = 64; - } - - else - { - if (max_pixel_depth <= 8) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 32; - - else - max_pixel_depth = 24; - } - - else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - max_pixel_depth = 64; - - else - max_pixel_depth = 48; - } - } -#endif - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) && \ -defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) - if (png_ptr->transformations & PNG_USER_TRANSFORM) - { - int user_pixel_depth = png_ptr->user_transform_depth * - png_ptr->user_transform_channels; - - if (user_pixel_depth > max_pixel_depth) - max_pixel_depth = user_pixel_depth; - } -#endif - - /* This value is stored in png_struct and double checked in the row read - * code. - */ - png_ptr->maximum_pixel_depth = (png_byte)max_pixel_depth; - png_ptr->transformed_pixel_depth = 0; /* calculated on demand */ - - /* Align the width on the next larger 8 pixels. Mainly used - * for interlacing - */ - row_bytes = ((png_ptr->width + 7) & ~((png_uint_32)7)); - /* Calculate the maximum bytes needed, adding a byte and a pixel - * for safety's sake - */ - row_bytes = PNG_ROWBYTES(max_pixel_depth, row_bytes) + - 1 + ((max_pixel_depth + 7) >> 3); - -#ifdef PNG_MAX_MALLOC_64K - if (row_bytes > (png_uint_32)65536L) - png_error(png_ptr, "This image requires a row greater than 64KB"); -#endif - - if (row_bytes + 48 > png_ptr->old_big_row_buf_size) - { - png_free(png_ptr, png_ptr->big_row_buf); - png_free(png_ptr, png_ptr->big_prev_row); - - if (png_ptr->interlaced) - png_ptr->big_row_buf = (png_bytep)png_calloc(png_ptr, - row_bytes + 48); - - else - png_ptr->big_row_buf = (png_bytep)png_malloc(png_ptr, row_bytes + 48); - - png_ptr->big_prev_row = (png_bytep)png_malloc(png_ptr, row_bytes + 48); - -#ifdef PNG_ALIGNED_MEMORY_SUPPORTED - /* Use 16-byte aligned memory for row_buf with at least 16 bytes - * of padding before and after row_buf; treat prev_row similarly. - * NOTE: the alignment is to the start of the pixels, one beyond the start - * of the buffer, because of the filter byte. Prior to libpng 1.5.6 this - * was incorrect; the filter byte was aligned, which had the exact - * opposite effect of that intended. - */ - { - png_bytep temp = png_ptr->big_row_buf + 32; - int extra = (int)((temp - (png_bytep)0) & 0x0f); - png_ptr->row_buf = temp - extra - 1/*filter byte*/; - - temp = png_ptr->big_prev_row + 32; - extra = (int)((temp - (png_bytep)0) & 0x0f); - png_ptr->prev_row = temp - extra - 1/*filter byte*/; - } - -#else - /* Use 31 bytes of padding before and 17 bytes after row_buf. */ - png_ptr->row_buf = png_ptr->big_row_buf + 31; - png_ptr->prev_row = png_ptr->big_prev_row + 31; -#endif - png_ptr->old_big_row_buf_size = row_bytes + 48; - } - -#ifdef PNG_MAX_MALLOC_64K - if (png_ptr->rowbytes > 65535) - png_error(png_ptr, "This image requires a row greater than 64KB"); - -#endif - if (png_ptr->rowbytes > (PNG_SIZE_MAX - 1)) - png_error(png_ptr, "Row has too many bytes to allocate in memory"); - - memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1); - - png_debug1(3, "width = %u,", png_ptr->width); - png_debug1(3, "height = %u,", png_ptr->height); - png_debug1(3, "iwidth = %u,", png_ptr->iwidth); - png_debug1(3, "num_rows = %u,", png_ptr->num_rows); - png_debug1(3, "rowbytes = %lu,", (unsigned long)png_ptr->rowbytes); - png_debug1(3, "irowbytes = %lu", - (unsigned long)PNG_ROWBYTES(png_ptr->pixel_depth, png_ptr->iwidth) + 1); - - /* The sequential reader needs a buffer for IDAT, but the progressive reader - * does not, so free the read buffer now regardless; the sequential reader - * reallocates it on demand. - */ - if (png_ptr->read_buffer) - { - png_bytep buffer = png_ptr->read_buffer; - - png_ptr->read_buffer_size = 0; - png_ptr->read_buffer = NULL; - png_free(png_ptr, buffer); - } - - /* Finally claim the zstream for the inflate of the IDAT data, use the bits - * value from the stream (note that this will result in a fatal error if the - * IDAT stream has a bogus deflate header window_bits value, but this should - * not be happening any longer!) - */ - if (png_inflate_claim(png_ptr, png_IDAT) != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg); - - png_ptr->flags |= PNG_FLAG_ROW_INIT; -} -#endif /* PNG_READ_SUPPORTED */ diff --git a/png/pngset.c b/png/pngset.c deleted file mode 100755 index 0c827d3..0000000 --- a/png/pngset.c +++ /dev/null @@ -1,1597 +0,0 @@ - -/* pngset.c - storage of image information into info struct - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * The functions here are used during reads to store data from the file - * into the info struct, and during writes to store application data - * into the info struct for writing into the file. This abstracts the - * info struct and allows us to change the structure in the future. - */ - -#include "pngpriv.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -#ifdef PNG_bKGD_SUPPORTED -void PNGAPI -png_set_bKGD(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_color_16p background) -{ - png_debug1(1, "in %s storage function", "bKGD"); - - if (png_ptr == NULL || info_ptr == NULL || background == NULL) - return; - - info_ptr->background = *background; - info_ptr->valid |= PNG_INFO_bKGD; -} -#endif - -#ifdef PNG_cHRM_SUPPORTED -void PNGFAPI -png_set_cHRM_fixed(png_const_structrp png_ptr, png_inforp info_ptr, - png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x, - png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y, - png_fixed_point blue_x, png_fixed_point blue_y) -{ - png_xy xy; - - png_debug1(1, "in %s storage function", "cHRM fixed"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - xy.redx = red_x; - xy.redy = red_y; - xy.greenx = green_x; - xy.greeny = green_y; - xy.bluex = blue_x; - xy.bluey = blue_y; - xy.whitex = white_x; - xy.whitey = white_y; - - if (png_colorspace_set_chromaticities(png_ptr, &info_ptr->colorspace, &xy, - 2/* override with app values*/)) - info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; - - png_colorspace_sync_info(png_ptr, info_ptr); -} - -void PNGFAPI -png_set_cHRM_XYZ_fixed(png_const_structrp png_ptr, png_inforp info_ptr, - png_fixed_point int_red_X, png_fixed_point int_red_Y, - png_fixed_point int_red_Z, png_fixed_point int_green_X, - png_fixed_point int_green_Y, png_fixed_point int_green_Z, - png_fixed_point int_blue_X, png_fixed_point int_blue_Y, - png_fixed_point int_blue_Z) -{ - png_XYZ XYZ; - - png_debug1(1, "in %s storage function", "cHRM XYZ fixed"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - XYZ.red_X = int_red_X; - XYZ.red_Y = int_red_Y; - XYZ.red_Z = int_red_Z; - XYZ.green_X = int_green_X; - XYZ.green_Y = int_green_Y; - XYZ.green_Z = int_green_Z; - XYZ.blue_X = int_blue_X; - XYZ.blue_Y = int_blue_Y; - XYZ.blue_Z = int_blue_Z; - - if (png_colorspace_set_endpoints(png_ptr, &info_ptr->colorspace, &XYZ, 2)) - info_ptr->colorspace.flags |= PNG_COLORSPACE_FROM_cHRM; - - png_colorspace_sync_info(png_ptr, info_ptr); -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_cHRM(png_const_structrp png_ptr, png_inforp info_ptr, - double white_x, double white_y, double red_x, double red_y, - double green_x, double green_y, double blue_x, double blue_y) -{ - png_set_cHRM_fixed(png_ptr, info_ptr, - png_fixed(png_ptr, white_x, "cHRM White X"), - png_fixed(png_ptr, white_y, "cHRM White Y"), - png_fixed(png_ptr, red_x, "cHRM Red X"), - png_fixed(png_ptr, red_y, "cHRM Red Y"), - png_fixed(png_ptr, green_x, "cHRM Green X"), - png_fixed(png_ptr, green_y, "cHRM Green Y"), - png_fixed(png_ptr, blue_x, "cHRM Blue X"), - png_fixed(png_ptr, blue_y, "cHRM Blue Y")); -} - -void PNGAPI -png_set_cHRM_XYZ(png_const_structrp png_ptr, png_inforp info_ptr, double red_X, - double red_Y, double red_Z, double green_X, double green_Y, double green_Z, - double blue_X, double blue_Y, double blue_Z) -{ - png_set_cHRM_XYZ_fixed(png_ptr, info_ptr, - png_fixed(png_ptr, red_X, "cHRM Red X"), - png_fixed(png_ptr, red_Y, "cHRM Red Y"), - png_fixed(png_ptr, red_Z, "cHRM Red Z"), - png_fixed(png_ptr, green_X, "cHRM Red X"), - png_fixed(png_ptr, green_Y, "cHRM Red Y"), - png_fixed(png_ptr, green_Z, "cHRM Red Z"), - png_fixed(png_ptr, blue_X, "cHRM Red X"), - png_fixed(png_ptr, blue_Y, "cHRM Red Y"), - png_fixed(png_ptr, blue_Z, "cHRM Red Z")); -} -# endif /* PNG_FLOATING_POINT_SUPPORTED */ - -#endif /* PNG_cHRM_SUPPORTED */ - -#ifdef PNG_gAMA_SUPPORTED -void PNGFAPI -png_set_gAMA_fixed(png_const_structrp png_ptr, png_inforp info_ptr, - png_fixed_point file_gamma) -{ - png_debug1(1, "in %s storage function", "gAMA"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_colorspace_set_gamma(png_ptr, &info_ptr->colorspace, file_gamma); - png_colorspace_sync_info(png_ptr, info_ptr); -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_gAMA(png_const_structrp png_ptr, png_inforp info_ptr, double file_gamma) -{ - png_set_gAMA_fixed(png_ptr, info_ptr, png_fixed(png_ptr, file_gamma, - "png_set_gAMA")); -} -# endif -#endif - -#ifdef PNG_hIST_SUPPORTED -void PNGAPI -png_set_hIST(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_uint_16p hist) -{ - int i; - - png_debug1(1, "in %s storage function", "hIST"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (info_ptr->num_palette == 0 || info_ptr->num_palette - > PNG_MAX_PALETTE_LENGTH) - { - png_warning(png_ptr, - "Invalid palette size, hIST allocation skipped"); - - return; - } - - png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0); - - /* Changed from info->num_palette to PNG_MAX_PALETTE_LENGTH in - * version 1.2.1 - */ - info_ptr->hist = png_voidcast(png_uint_16p, png_malloc_warn(png_ptr, - PNG_MAX_PALETTE_LENGTH * (sizeof (png_uint_16)))); - - if (info_ptr->hist == NULL) - { - png_warning(png_ptr, "Insufficient memory for hIST chunk data"); - return; - } - - info_ptr->free_me |= PNG_FREE_HIST; - - for (i = 0; i < info_ptr->num_palette; i++) - info_ptr->hist[i] = hist[i]; - - info_ptr->valid |= PNG_INFO_hIST; -} -#endif - -void PNGAPI -png_set_IHDR(png_const_structrp png_ptr, png_inforp info_ptr, - png_uint_32 width, png_uint_32 height, int bit_depth, - int color_type, int interlace_type, int compression_type, - int filter_type) -{ - png_debug1(1, "in %s storage function", "IHDR"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->width = width; - info_ptr->height = height; - info_ptr->bit_depth = (png_byte)bit_depth; - info_ptr->color_type = (png_byte)color_type; - info_ptr->compression_type = (png_byte)compression_type; - info_ptr->filter_type = (png_byte)filter_type; - info_ptr->interlace_type = (png_byte)interlace_type; - - png_check_IHDR (png_ptr, info_ptr->width, info_ptr->height, - info_ptr->bit_depth, info_ptr->color_type, info_ptr->interlace_type, - info_ptr->compression_type, info_ptr->filter_type); - - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - info_ptr->channels = 1; - - else if (info_ptr->color_type & PNG_COLOR_MASK_COLOR) - info_ptr->channels = 3; - - else - info_ptr->channels = 1; - - if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA) - info_ptr->channels++; - - info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth); - - info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width); -} - -#ifdef PNG_oFFs_SUPPORTED -void PNGAPI -png_set_oFFs(png_const_structrp png_ptr, png_inforp info_ptr, - png_int_32 offset_x, png_int_32 offset_y, int unit_type) -{ - png_debug1(1, "in %s storage function", "oFFs"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_offset = offset_x; - info_ptr->y_offset = offset_y; - info_ptr->offset_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_oFFs; -} -#endif - -#ifdef PNG_pCAL_SUPPORTED -void PNGAPI -png_set_pCAL(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_charp purpose, png_int_32 X0, png_int_32 X1, int type, - int nparams, png_const_charp units, png_charpp params) -{ - png_size_t length; - int i; - - png_debug1(1, "in %s storage function", "pCAL"); - - if (png_ptr == NULL || info_ptr == NULL || purpose == NULL || units == NULL - || (nparams > 0 && params == NULL)) - return; - - length = strlen(purpose) + 1; - png_debug1(3, "allocating purpose for info (%lu bytes)", - (unsigned long)length); - - /* TODO: validate format of calibration name and unit name */ - - /* Check that the type matches the specification. */ - if (type < 0 || type > 3) - png_error(png_ptr, "Invalid pCAL equation type"); - - if (nparams < 0 || nparams > 255) - png_error(png_ptr, "Invalid pCAL parameter count"); - - /* Validate params[nparams] */ - for (i=0; ipcal_purpose = png_voidcast(png_charp, - png_malloc_warn(png_ptr, length)); - - if (info_ptr->pcal_purpose == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL purpose"); - return; - } - - memcpy(info_ptr->pcal_purpose, purpose, length); - - png_debug(3, "storing X0, X1, type, and nparams in info"); - info_ptr->pcal_X0 = X0; - info_ptr->pcal_X1 = X1; - info_ptr->pcal_type = (png_byte)type; - info_ptr->pcal_nparams = (png_byte)nparams; - - length = strlen(units) + 1; - png_debug1(3, "allocating units for info (%lu bytes)", - (unsigned long)length); - - info_ptr->pcal_units = png_voidcast(png_charp, - png_malloc_warn(png_ptr, length)); - - if (info_ptr->pcal_units == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL units"); - return; - } - - memcpy(info_ptr->pcal_units, units, length); - - info_ptr->pcal_params = png_voidcast(png_charpp, png_malloc_warn(png_ptr, - (png_size_t)((nparams + 1) * (sizeof (png_charp))))); - - if (info_ptr->pcal_params == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL params"); - return; - } - - memset(info_ptr->pcal_params, 0, (nparams + 1) * (sizeof (png_charp))); - - for (i = 0; i < nparams; i++) - { - length = strlen(params[i]) + 1; - png_debug2(3, "allocating parameter %d for info (%lu bytes)", i, - (unsigned long)length); - - info_ptr->pcal_params[i] = (png_charp)png_malloc_warn(png_ptr, length); - - if (info_ptr->pcal_params[i] == NULL) - { - png_warning(png_ptr, "Insufficient memory for pCAL parameter"); - return; - } - - memcpy(info_ptr->pcal_params[i], params[i], length); - } - - info_ptr->valid |= PNG_INFO_pCAL; - info_ptr->free_me |= PNG_FREE_PCAL; -} -#endif - -#ifdef PNG_sCAL_SUPPORTED -void PNGAPI -png_set_sCAL_s(png_const_structrp png_ptr, png_inforp info_ptr, - int unit, png_const_charp swidth, png_const_charp sheight) -{ - png_size_t lengthw = 0, lengthh = 0; - - png_debug1(1, "in %s storage function", "sCAL"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - /* Double check the unit (should never get here with an invalid - * unit unless this is an API call.) - */ - if (unit != 1 && unit != 2) - png_error(png_ptr, "Invalid sCAL unit"); - - if (swidth == NULL || (lengthw = strlen(swidth)) == 0 || - swidth[0] == 45 /* '-' */ || !png_check_fp_string(swidth, lengthw)) - png_error(png_ptr, "Invalid sCAL width"); - - if (sheight == NULL || (lengthh = strlen(sheight)) == 0 || - sheight[0] == 45 /* '-' */ || !png_check_fp_string(sheight, lengthh)) - png_error(png_ptr, "Invalid sCAL height"); - - info_ptr->scal_unit = (png_byte)unit; - - ++lengthw; - - png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthw); - - info_ptr->scal_s_width = png_voidcast(png_charp, - png_malloc_warn(png_ptr, lengthw)); - - if (info_ptr->scal_s_width == NULL) - { - png_warning(png_ptr, "Memory allocation failed while processing sCAL"); - return; - } - - memcpy(info_ptr->scal_s_width, swidth, lengthw); - - ++lengthh; - - png_debug1(3, "allocating unit for info (%u bytes)", (unsigned int)lengthh); - - info_ptr->scal_s_height = png_voidcast(png_charp, - png_malloc_warn(png_ptr, lengthh)); - - if (info_ptr->scal_s_height == NULL) - { - png_free (png_ptr, info_ptr->scal_s_width); - info_ptr->scal_s_width = NULL; - - png_warning(png_ptr, "Memory allocation failed while processing sCAL"); - return; - } - - memcpy(info_ptr->scal_s_height, sheight, lengthh); - - info_ptr->valid |= PNG_INFO_sCAL; - info_ptr->free_me |= PNG_FREE_SCAL; -} - -# ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_sCAL(png_const_structrp png_ptr, png_inforp info_ptr, int unit, - double width, double height) -{ - png_debug1(1, "in %s storage function", "sCAL"); - - /* Check the arguments. */ - if (width <= 0) - png_warning(png_ptr, "Invalid sCAL width ignored"); - - else if (height <= 0) - png_warning(png_ptr, "Invalid sCAL height ignored"); - - else - { - /* Convert 'width' and 'height' to ASCII. */ - char swidth[PNG_sCAL_MAX_DIGITS+1]; - char sheight[PNG_sCAL_MAX_DIGITS+1]; - - png_ascii_from_fp(png_ptr, swidth, (sizeof swidth), width, - PNG_sCAL_PRECISION); - png_ascii_from_fp(png_ptr, sheight, (sizeof sheight), height, - PNG_sCAL_PRECISION); - - png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight); - } -} -# endif - -# ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_sCAL_fixed(png_const_structrp png_ptr, png_inforp info_ptr, int unit, - png_fixed_point width, png_fixed_point height) -{ - png_debug1(1, "in %s storage function", "sCAL"); - - /* Check the arguments. */ - if (width <= 0) - png_warning(png_ptr, "Invalid sCAL width ignored"); - - else if (height <= 0) - png_warning(png_ptr, "Invalid sCAL height ignored"); - - else - { - /* Convert 'width' and 'height' to ASCII. */ - char swidth[PNG_sCAL_MAX_DIGITS+1]; - char sheight[PNG_sCAL_MAX_DIGITS+1]; - - png_ascii_from_fixed(png_ptr, swidth, (sizeof swidth), width); - png_ascii_from_fixed(png_ptr, sheight, (sizeof sheight), height); - - png_set_sCAL_s(png_ptr, info_ptr, unit, swidth, sheight); - } -} -# endif -#endif - -#ifdef PNG_pHYs_SUPPORTED -void PNGAPI -png_set_pHYs(png_const_structrp png_ptr, png_inforp info_ptr, - png_uint_32 res_x, png_uint_32 res_y, int unit_type) -{ - png_debug1(1, "in %s storage function", "pHYs"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - info_ptr->x_pixels_per_unit = res_x; - info_ptr->y_pixels_per_unit = res_y; - info_ptr->phys_unit_type = (png_byte)unit_type; - info_ptr->valid |= PNG_INFO_pHYs; -} -#endif - -void PNGAPI -png_set_PLTE(png_structrp png_ptr, png_inforp info_ptr, - png_const_colorp palette, int num_palette) -{ - - png_debug1(1, "in %s storage function", "PLTE"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (num_palette < 0 || num_palette > PNG_MAX_PALETTE_LENGTH) - { - if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_error(png_ptr, "Invalid palette length"); - - else - { - png_warning(png_ptr, "Invalid palette length"); - return; - } - } - - if ((num_palette > 0 && palette == NULL) || - (num_palette == 0 -# ifdef PNG_MNG_FEATURES_SUPPORTED - && (png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) == 0 -# endif - )) - { - png_error(png_ptr, "Invalid palette"); - return; - } - - /* It may not actually be necessary to set png_ptr->palette here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - * - * 1.6.0: the above statement appears to be incorrect; something has to set - * the palette inside png_struct on read. - */ - png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0); - - /* Changed in libpng-1.2.1 to allocate PNG_MAX_PALETTE_LENGTH instead - * of num_palette entries, in case of an invalid PNG file that has - * too-large sample values. - */ - png_ptr->palette = png_voidcast(png_colorp, png_calloc(png_ptr, - PNG_MAX_PALETTE_LENGTH * (sizeof (png_color)))); - - if (num_palette > 0) - memcpy(png_ptr->palette, palette, num_palette * (sizeof (png_color))); - info_ptr->palette = png_ptr->palette; - info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette; - - info_ptr->free_me |= PNG_FREE_PLTE; - - info_ptr->valid |= PNG_INFO_PLTE; -} - -#ifdef PNG_sBIT_SUPPORTED -void PNGAPI -png_set_sBIT(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_color_8p sig_bit) -{ - png_debug1(1, "in %s storage function", "sBIT"); - - if (png_ptr == NULL || info_ptr == NULL || sig_bit == NULL) - return; - - info_ptr->sig_bit = *sig_bit; - info_ptr->valid |= PNG_INFO_sBIT; -} -#endif - -#ifdef PNG_sRGB_SUPPORTED -void PNGAPI -png_set_sRGB(png_const_structrp png_ptr, png_inforp info_ptr, int srgb_intent) -{ - png_debug1(1, "in %s storage function", "sRGB"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - (void)png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent); - png_colorspace_sync_info(png_ptr, info_ptr); -} - -void PNGAPI -png_set_sRGB_gAMA_and_cHRM(png_const_structrp png_ptr, png_inforp info_ptr, - int srgb_intent) -{ - png_debug1(1, "in %s storage function", "sRGB_gAMA_and_cHRM"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (png_colorspace_set_sRGB(png_ptr, &info_ptr->colorspace, srgb_intent)) - { - /* This causes the gAMA and cHRM to be written too */ - info_ptr->colorspace.flags |= - PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM; - } - - png_colorspace_sync_info(png_ptr, info_ptr); -} -#endif /* sRGB */ - - -#ifdef PNG_iCCP_SUPPORTED -void PNGAPI -png_set_iCCP(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_charp name, int compression_type, - png_const_bytep profile, png_uint_32 proflen) -{ - png_charp new_iccp_name; - png_bytep new_iccp_profile; - png_size_t length; - - png_debug1(1, "in %s storage function", "iCCP"); - - if (png_ptr == NULL || info_ptr == NULL || name == NULL || profile == NULL) - return; - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - png_app_error(png_ptr, "Invalid iCCP compression method"); - - /* Set the colorspace first because this validates the profile; do not - * override previously set app cHRM or gAMA here (because likely as not the - * application knows better than libpng what the correct values are.) Pass - * the info_ptr color_type field to png_colorspace_set_ICC because in the - * write case it has not yet been stored in png_ptr. - */ - { - int result = png_colorspace_set_ICC(png_ptr, &info_ptr->colorspace, name, - proflen, profile, info_ptr->color_type); - - png_colorspace_sync_info(png_ptr, info_ptr); - - /* Don't do any of the copying if the profile was bad, or inconsistent. */ - if (result == 0) - return; - - /* But do write the gAMA and cHRM chunks from the profile. */ - info_ptr->colorspace.flags |= - PNG_COLORSPACE_FROM_gAMA|PNG_COLORSPACE_FROM_cHRM; - } - - length = strlen(name)+1; - new_iccp_name = png_voidcast(png_charp, png_malloc_warn(png_ptr, length)); - - if (new_iccp_name == NULL) - { - png_benign_error(png_ptr, "Insufficient memory to process iCCP chunk"); - return; - } - - memcpy(new_iccp_name, name, length); - new_iccp_profile = png_voidcast(png_bytep, - png_malloc_warn(png_ptr, proflen)); - - if (new_iccp_profile == NULL) - { - png_free(png_ptr, new_iccp_name); - png_benign_error(png_ptr, - "Insufficient memory to process iCCP profile"); - return; - } - - memcpy(new_iccp_profile, profile, proflen); - - png_free_data(png_ptr, info_ptr, PNG_FREE_ICCP, 0); - - info_ptr->iccp_proflen = proflen; - info_ptr->iccp_name = new_iccp_name; - info_ptr->iccp_profile = new_iccp_profile; - info_ptr->free_me |= PNG_FREE_ICCP; - info_ptr->valid |= PNG_INFO_iCCP; -} -#endif - -#ifdef PNG_TEXT_SUPPORTED -void PNGAPI -png_set_text(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_textp text_ptr, int num_text) -{ - int ret; - ret = png_set_text_2(png_ptr, info_ptr, text_ptr, num_text); - - if (ret != 0) - png_error(png_ptr, "Insufficient memory to store text"); -} - -int /* PRIVATE */ -png_set_text_2(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_textp text_ptr, int num_text) -{ - int i; - - png_debug1(1, "in %lx storage function", png_ptr == NULL ? "unexpected" : - (unsigned long)png_ptr->chunk_name); - - if (png_ptr == NULL || info_ptr == NULL || num_text <= 0 || text_ptr == NULL) - return(0); - - /* Make sure we have enough space in the "text" array in info_struct - * to hold all of the incoming text_ptr objects. This compare can't overflow - * because max_text >= num_text (anyway, subtract of two positive integers - * can't overflow in any case.) - */ - if (num_text > info_ptr->max_text - info_ptr->num_text) - { - int old_num_text = info_ptr->num_text; - int max_text; - png_textp new_text = NULL; - - /* Calculate an appropriate max_text, checking for overflow. */ - max_text = old_num_text; - if (num_text <= INT_MAX - max_text) - { - max_text += num_text; - - /* Round up to a multiple of 8 */ - if (max_text < INT_MAX-8) - max_text = (max_text + 8) & ~0x7; - - else - max_text = INT_MAX; - - /* Now allocate a new array and copy the old members in, this does all - * the overflow checks. - */ - new_text = png_voidcast(png_textp,png_realloc_array(png_ptr, - info_ptr->text, old_num_text, max_text-old_num_text, - sizeof *new_text)); - } - - if (new_text == NULL) - { - png_chunk_report(png_ptr, "too many text chunks", - PNG_CHUNK_WRITE_ERROR); - return 1; - } - - png_free(png_ptr, info_ptr->text); - - info_ptr->text = new_text; - info_ptr->free_me |= PNG_FREE_TEXT; - info_ptr->max_text = max_text; - /* num_text is adjusted below as the entries are copied in */ - - png_debug1(3, "allocated %d entries for info_ptr->text", max_text); - } - - for (i = 0; i < num_text; i++) - { - size_t text_length, key_len; - size_t lang_len, lang_key_len; - png_textp textp = &(info_ptr->text[info_ptr->num_text]); - - if (text_ptr[i].key == NULL) - continue; - - if (text_ptr[i].compression < PNG_TEXT_COMPRESSION_NONE || - text_ptr[i].compression >= PNG_TEXT_COMPRESSION_LAST) - { - png_chunk_report(png_ptr, "text compression mode is out of range", - PNG_CHUNK_WRITE_ERROR); - continue; - } - - key_len = strlen(text_ptr[i].key); - - if (text_ptr[i].compression <= 0) - { - lang_len = 0; - lang_key_len = 0; - } - - else -# ifdef PNG_iTXt_SUPPORTED - { - /* Set iTXt data */ - - if (text_ptr[i].lang != NULL) - lang_len = strlen(text_ptr[i].lang); - - else - lang_len = 0; - - if (text_ptr[i].lang_key != NULL) - lang_key_len = strlen(text_ptr[i].lang_key); - - else - lang_key_len = 0; - } -# else /* PNG_iTXt_SUPPORTED */ - { - png_chunk_report(png_ptr, "iTXt chunk not supported", - PNG_CHUNK_WRITE_ERROR); - continue; - } -# endif - - if (text_ptr[i].text == NULL || text_ptr[i].text[0] == '\0') - { - text_length = 0; -# ifdef PNG_iTXt_SUPPORTED - if (text_ptr[i].compression > 0) - textp->compression = PNG_ITXT_COMPRESSION_NONE; - - else -# endif - textp->compression = PNG_TEXT_COMPRESSION_NONE; - } - - else - { - text_length = strlen(text_ptr[i].text); - textp->compression = text_ptr[i].compression; - } - - textp->key = png_voidcast(png_charp,png_malloc_base(png_ptr, - key_len + text_length + lang_len + lang_key_len + 4)); - - if (textp->key == NULL) - { - png_chunk_report(png_ptr, "text chunk: out of memory", - PNG_CHUNK_WRITE_ERROR); - return 1; - } - - png_debug2(2, "Allocated %lu bytes at %p in png_set_text", - (unsigned long)(png_uint_32) - (key_len + lang_len + lang_key_len + text_length + 4), - textp->key); - - memcpy(textp->key, text_ptr[i].key, key_len); - *(textp->key + key_len) = '\0'; - - if (text_ptr[i].compression > 0) - { - textp->lang = textp->key + key_len + 1; - memcpy(textp->lang, text_ptr[i].lang, lang_len); - *(textp->lang + lang_len) = '\0'; - textp->lang_key = textp->lang + lang_len + 1; - memcpy(textp->lang_key, text_ptr[i].lang_key, lang_key_len); - *(textp->lang_key + lang_key_len) = '\0'; - textp->text = textp->lang_key + lang_key_len + 1; - } - - else - { - textp->lang=NULL; - textp->lang_key=NULL; - textp->text = textp->key + key_len + 1; - } - - if (text_length != 0) - memcpy(textp->text, text_ptr[i].text, text_length); - - *(textp->text + text_length) = '\0'; - -# ifdef PNG_iTXt_SUPPORTED - if (textp->compression > 0) - { - textp->text_length = 0; - textp->itxt_length = text_length; - } - - else -# endif - { - textp->text_length = text_length; - textp->itxt_length = 0; - } - - info_ptr->num_text++; - png_debug1(3, "transferred text chunk %d", info_ptr->num_text); - } - - return(0); -} -#endif - -#ifdef PNG_tIME_SUPPORTED -void PNGAPI -png_set_tIME(png_const_structrp png_ptr, png_inforp info_ptr, - png_const_timep mod_time) -{ - png_debug1(1, "in %s storage function", "tIME"); - - if (png_ptr == NULL || info_ptr == NULL || mod_time == NULL || - (png_ptr->mode & PNG_WROTE_tIME)) - return; - - if (mod_time->month == 0 || mod_time->month > 12 || - mod_time->day == 0 || mod_time->day > 31 || - mod_time->hour > 23 || mod_time->minute > 59 || - mod_time->second > 60) - { - png_warning(png_ptr, "Ignoring invalid time value"); - return; - } - - info_ptr->mod_time = *mod_time; - info_ptr->valid |= PNG_INFO_tIME; -} -#endif - -#ifdef PNG_tRNS_SUPPORTED -void PNGAPI -png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr, - png_const_bytep trans_alpha, int num_trans, png_const_color_16p trans_color) -{ - png_debug1(1, "in %s storage function", "tRNS"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (trans_alpha != NULL) - { - /* It may not actually be necessary to set png_ptr->trans_alpha here; - * we do it for backward compatibility with the way the png_handle_tRNS - * function used to do the allocation. - * - * 1.6.0: The above statement is incorrect; png_handle_tRNS effectively - * relies on png_set_tRNS storing the information in png_struct - * (otherwise it won't be there for the code in pngrtran.c). - */ - - png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0); - - /* Changed from num_trans to PNG_MAX_PALETTE_LENGTH in version 1.2.1 */ - png_ptr->trans_alpha = info_ptr->trans_alpha = png_voidcast(png_bytep, - png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH)); - - if (num_trans > 0 && num_trans <= PNG_MAX_PALETTE_LENGTH) - memcpy(info_ptr->trans_alpha, trans_alpha, (png_size_t)num_trans); - } - - if (trans_color != NULL) - { - int sample_max = (1 << info_ptr->bit_depth); - - if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY && - trans_color->gray > sample_max) || - (info_ptr->color_type == PNG_COLOR_TYPE_RGB && - (trans_color->red > sample_max || - trans_color->green > sample_max || - trans_color->blue > sample_max))) - png_warning(png_ptr, - "tRNS chunk has out-of-range samples for bit_depth"); - - info_ptr->trans_color = *trans_color; - - if (num_trans == 0) - num_trans = 1; - } - - info_ptr->num_trans = (png_uint_16)num_trans; - - if (num_trans != 0) - { - info_ptr->valid |= PNG_INFO_tRNS; - info_ptr->free_me |= PNG_FREE_TRNS; - } -} -#endif - -#ifdef PNG_sPLT_SUPPORTED -void PNGAPI -png_set_sPLT(png_const_structrp png_ptr, - png_inforp info_ptr, png_const_sPLT_tp entries, int nentries) -/* - * entries - array of png_sPLT_t structures - * to be added to the list of palettes - * in the info structure. - * - * nentries - number of palette structures to be - * added. - */ -{ - png_sPLT_tp np; - - if (png_ptr == NULL || info_ptr == NULL || nentries <= 0 || entries == NULL) - return; - - /* Use the internal realloc function, which checks for all the possible - * overflows. Notice that the parameters are (int) and (size_t) - */ - np = png_voidcast(png_sPLT_tp,png_realloc_array(png_ptr, - info_ptr->splt_palettes, info_ptr->splt_palettes_num, nentries, - sizeof *np)); - - if (np == NULL) - { - /* Out of memory or too many chunks */ - png_chunk_report(png_ptr, "too many sPLT chunks", PNG_CHUNK_WRITE_ERROR); - return; - } - - png_free(png_ptr, info_ptr->splt_palettes); - info_ptr->splt_palettes = np; - info_ptr->free_me |= PNG_FREE_SPLT; - - np += info_ptr->splt_palettes_num; - - do - { - png_size_t length; - - /* Skip invalid input entries */ - if (entries->name == NULL || entries->entries == NULL) - { - /* png_handle_sPLT doesn't do this, so this is an app error */ - png_app_error(png_ptr, "png_set_sPLT: invalid sPLT"); - /* Just skip the invalid entry */ - continue; - } - - np->depth = entries->depth; - - /* In the even of out-of-memory just return - there's no point keeping on - * trying to add sPLT chunks. - */ - length = strlen(entries->name) + 1; - np->name = png_voidcast(png_charp, png_malloc_base(png_ptr, length)); - - if (np->name == NULL) - break; - - memcpy(np->name, entries->name, length); - - /* IMPORTANT: we have memory now that won't get freed if something else - * goes wrong, this code must free it. png_malloc_array produces no - * warnings, use a png_chunk_report (below) if there is an error. - */ - np->entries = png_voidcast(png_sPLT_entryp, png_malloc_array(png_ptr, - entries->nentries, sizeof (png_sPLT_entry))); - - if (np->entries == NULL) - { - png_free(png_ptr, np->name); - break; - } - - np->nentries = entries->nentries; - /* This multiply can't overflow because png_malloc_array has already - * checked it when doing the allocation. - */ - memcpy(np->entries, entries->entries, - entries->nentries * sizeof (png_sPLT_entry)); - - /* Note that 'continue' skips the advance of the out pointer and out - * count, so an invalid entry is not added. - */ - info_ptr->valid |= PNG_INFO_sPLT; - ++(info_ptr->splt_palettes_num); - ++np; - } - while (++entries, --nentries); - - if (nentries > 0) - png_chunk_report(png_ptr, "sPLT out of memory", PNG_CHUNK_WRITE_ERROR); -} -#endif /* PNG_sPLT_SUPPORTED */ - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -static png_byte -check_location(png_const_structrp png_ptr, int location) -{ - location &= (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT); - - /* New in 1.6.0; copy the location and check it. This is an API - * change, previously the app had to use the - * png_set_unknown_chunk_location API below for each chunk. - */ - if (location == 0 && !(png_ptr->mode & PNG_IS_READ_STRUCT)) - { - /* Write struct, so unknown chunks come from the app */ - png_app_warning(png_ptr, - "png_set_unknown_chunks now expects a valid location"); - /* Use the old behavior */ - location = (png_byte)(png_ptr->mode & - (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)); - } - - /* This need not be an internal error - if the app calls - * png_set_unknown_chunks on a read pointer it must get the location right. - */ - if (location == 0) - png_error(png_ptr, "invalid location in png_set_unknown_chunks"); - - /* Now reduce the location to the top-most set bit by removing each least - * significant bit in turn. - */ - while (location != (location & -location)) - location &= ~(location & -location); - - /* The cast is safe because 'location' is a bit mask and only the low four - * bits are significant. - */ - return (png_byte)location; -} - -void PNGAPI -png_set_unknown_chunks(png_const_structrp png_ptr, - png_inforp info_ptr, png_const_unknown_chunkp unknowns, int num_unknowns) -{ - png_unknown_chunkp np; - - if (png_ptr == NULL || info_ptr == NULL || num_unknowns <= 0 || - unknowns == NULL) - return; - - /* Check for the failure cases where support has been disabled at compile - * time. This code is hardly ever compiled - it's here because - * STORE_UNKNOWN_CHUNKS is set by both read and write code (compiling in this - * code) but may be meaningless if the read or write handling of unknown - * chunks is not compiled in. - */ -# if !defined(PNG_READ_UNKNOWN_CHUNKS_SUPPORTED) && \ - defined(PNG_READ_SUPPORTED) - if (png_ptr->mode & PNG_IS_READ_STRUCT) - { - png_app_error(png_ptr, "no unknown chunk support on read"); - return; - } -# endif -# if !defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED) && \ - defined(PNG_WRITE_SUPPORTED) - if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) - { - png_app_error(png_ptr, "no unknown chunk support on write"); - return; - } -# endif - - /* Prior to 1.6.0 this code used png_malloc_warn; however, this meant that - * unknown critical chunks could be lost with just a warning resulting in - * undefined behavior. Now png_chunk_report is used to provide behavior - * appropriate to read or write. - */ - np = png_voidcast(png_unknown_chunkp, png_realloc_array(png_ptr, - info_ptr->unknown_chunks, info_ptr->unknown_chunks_num, num_unknowns, - sizeof *np)); - - if (np == NULL) - { - png_chunk_report(png_ptr, "too many unknown chunks", - PNG_CHUNK_WRITE_ERROR); - return; - } - - png_free(png_ptr, info_ptr->unknown_chunks); - info_ptr->unknown_chunks = np; /* safe because it is initialized */ - info_ptr->free_me |= PNG_FREE_UNKN; - - np += info_ptr->unknown_chunks_num; - - /* Increment unknown_chunks_num each time round the loop to protect the - * just-allocated chunk data. - */ - for (; num_unknowns > 0; --num_unknowns, ++unknowns) - { - memcpy(np->name, unknowns->name, (sizeof np->name)); - np->name[(sizeof np->name)-1] = '\0'; - np->location = check_location(png_ptr, unknowns->location); - - if (unknowns->size == 0) - { - np->data = NULL; - np->size = 0; - } - - else - { - np->data = png_voidcast(png_bytep, - png_malloc_base(png_ptr, unknowns->size)); - - if (np->data == NULL) - { - png_chunk_report(png_ptr, "unknown chunk: out of memory", - PNG_CHUNK_WRITE_ERROR); - /* But just skip storing the unknown chunk */ - continue; - } - - memcpy(np->data, unknowns->data, unknowns->size); - np->size = unknowns->size; - } - - /* These increments are skipped on out-of-memory for the data - the - * unknown chunk entry gets overwritten if the png_chunk_report returns. - * This is correct in the read case (the chunk is just dropped.) - */ - ++np; - ++(info_ptr->unknown_chunks_num); - } -} - -void PNGAPI -png_set_unknown_chunk_location(png_const_structrp png_ptr, png_inforp info_ptr, - int chunk, int location) -{ - /* This API is pretty pointless in 1.6.0 because the location can be set - * before the call to png_set_unknown_chunks. - * - * TODO: add a png_app_warning in 1.7 - */ - if (png_ptr != NULL && info_ptr != NULL && chunk >= 0 && - chunk < info_ptr->unknown_chunks_num) - { - if ((location & (PNG_HAVE_IHDR|PNG_HAVE_PLTE|PNG_AFTER_IDAT)) == 0) - { - png_app_error(png_ptr, "invalid unknown chunk location"); - /* Fake out the pre 1.6.0 behavior: */ - if ((location & PNG_HAVE_IDAT)) /* undocumented! */ - location = PNG_AFTER_IDAT; - - else - location = PNG_HAVE_IHDR; /* also undocumented */ - } - - info_ptr->unknown_chunks[chunk].location = - check_location(png_ptr, location); - } -} -#endif - - -#ifdef PNG_MNG_FEATURES_SUPPORTED -png_uint_32 PNGAPI -png_permit_mng_features (png_structrp png_ptr, png_uint_32 mng_features) -{ - png_debug(1, "in png_permit_mng_features"); - - if (png_ptr == NULL) - return 0; - - png_ptr->mng_features_permitted = mng_features & PNG_ALL_MNG_FEATURES; - - return png_ptr->mng_features_permitted; -} -#endif - -#ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED -static unsigned int -add_one_chunk(png_bytep list, unsigned int count, png_const_bytep add, int keep) -{ - unsigned int i; - - /* Utility function: update the 'keep' state of a chunk if it is already in - * the list, otherwise add it to the list. - */ - for (i=0; i= PNG_HANDLE_CHUNK_LAST) - { - png_app_error(png_ptr, "png_set_keep_unknown_chunks: invalid keep"); - return; - } - - if (num_chunks_in <= 0) - { - png_ptr->unknown_default = keep; - - /* '0' means just set the flags, so stop here */ - if (num_chunks_in == 0) - return; - } - - if (num_chunks_in < 0) - { - /* Ignore all unknown chunks and all chunks recognized by - * libpng except for IHDR, PLTE, tRNS, IDAT, and IEND - */ - static PNG_CONST png_byte chunks_to_ignore[] = { - 98, 75, 71, 68, '\0', /* bKGD */ - 99, 72, 82, 77, '\0', /* cHRM */ - 103, 65, 77, 65, '\0', /* gAMA */ - 104, 73, 83, 84, '\0', /* hIST */ - 105, 67, 67, 80, '\0', /* iCCP */ - 105, 84, 88, 116, '\0', /* iTXt */ - 111, 70, 70, 115, '\0', /* oFFs */ - 112, 67, 65, 76, '\0', /* pCAL */ - 112, 72, 89, 115, '\0', /* pHYs */ - 115, 66, 73, 84, '\0', /* sBIT */ - 115, 67, 65, 76, '\0', /* sCAL */ - 115, 80, 76, 84, '\0', /* sPLT */ - 115, 84, 69, 82, '\0', /* sTER */ - 115, 82, 71, 66, '\0', /* sRGB */ - 116, 69, 88, 116, '\0', /* tEXt */ - 116, 73, 77, 69, '\0', /* tIME */ - 122, 84, 88, 116, '\0' /* zTXt */ - }; - - chunk_list = chunks_to_ignore; - num_chunks = (sizeof chunks_to_ignore)/5; - } - - else /* num_chunks_in > 0 */ - { - if (chunk_list == NULL) - { - /* Prior to 1.6.0 this was silently ignored, now it is an app_error - * which can be switched off. - */ - png_app_error(png_ptr, "png_set_keep_unknown_chunks: no chunk list"); - return; - } - - num_chunks = num_chunks_in; - } - - old_num_chunks = png_ptr->num_chunk_list; - if (png_ptr->chunk_list == NULL) - old_num_chunks = 0; - - /* Since num_chunks is always restricted to UINT_MAX/5 this can't overflow. - */ - if (num_chunks + old_num_chunks > UINT_MAX/5) - { - png_app_error(png_ptr, "png_set_keep_unknown_chunks: too many chunks"); - return; - } - - /* If these chunks are being reset to the default then no more memory is - * required because add_one_chunk above doesn't extend the list if the 'keep' - * parameter is the default. - */ - if (keep != 0) - { - new_list = png_voidcast(png_bytep, png_malloc(png_ptr, - 5 * (num_chunks + old_num_chunks))); - - if (old_num_chunks > 0) - memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks); - } - - else if (old_num_chunks > 0) - new_list = png_ptr->chunk_list; - - else - new_list = NULL; - - /* Add the new chunks together with each one's handling code. If the chunk - * already exists the code is updated, otherwise the chunk is added to the - * end. (In libpng 1.6.0 order no longer matters because this code enforces - * the earlier convention that the last setting is the one that is used.) - */ - if (new_list != NULL) - { - png_const_bytep inlist; - png_bytep outlist; - unsigned int i; - - for (i=0; ichunk_list != new_list) - png_free(png_ptr, new_list); - - new_list = NULL; - } - } - - else - num_chunks = 0; - - png_ptr->num_chunk_list = num_chunks; - - if (png_ptr->chunk_list != new_list) - { - if (png_ptr->chunk_list != NULL) - png_free(png_ptr, png_ptr->chunk_list); - - png_ptr->chunk_list = new_list; - } -} -#endif - -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED -void PNGAPI -png_set_read_user_chunk_fn(png_structrp png_ptr, png_voidp user_chunk_ptr, - png_user_chunk_ptr read_user_chunk_fn) -{ - png_debug(1, "in png_set_read_user_chunk_fn"); - - if (png_ptr == NULL) - return; - - png_ptr->read_user_chunk_fn = read_user_chunk_fn; - png_ptr->user_chunk_ptr = user_chunk_ptr; -} -#endif - -#ifdef PNG_INFO_IMAGE_SUPPORTED -void PNGAPI -png_set_rows(png_const_structrp png_ptr, png_inforp info_ptr, - png_bytepp row_pointers) -{ - png_debug1(1, "in %s storage function", "rows"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (info_ptr->row_pointers && (info_ptr->row_pointers != row_pointers)) - png_free_data(png_ptr, info_ptr, PNG_FREE_ROWS, 0); - - info_ptr->row_pointers = row_pointers; - - if (row_pointers != NULL) - info_ptr->valid |= PNG_INFO_IDAT; -} -#endif - -void PNGAPI -png_set_compression_buffer_size(png_structrp png_ptr, png_size_t size) -{ - if (png_ptr == NULL) - return; - - if (size == 0 || size > PNG_UINT_31_MAX) - png_error(png_ptr, "invalid compression buffer size"); - -# ifdef PNG_SEQUENTIAL_READ_SUPPORTED - if (png_ptr->mode & PNG_IS_READ_STRUCT) - { - png_ptr->IDAT_read_size = (png_uint_32)size; /* checked above */ - return; - } -# endif - -# ifdef PNG_WRITE_SUPPORTED - if (!(png_ptr->mode & PNG_IS_READ_STRUCT)) - { - if (png_ptr->zowner != 0) - { - png_warning(png_ptr, - "Compression buffer size cannot be changed because it is in use"); - return; - } - - if (size > ZLIB_IO_MAX) - { - png_warning(png_ptr, - "Compression buffer size limited to system maximum"); - size = ZLIB_IO_MAX; /* must fit */ - } - - else if (size < 6) - { - /* Deflate will potentially go into an infinite loop on a SYNC_FLUSH - * if this is permitted. - */ - png_warning(png_ptr, - "Compression buffer size cannot be reduced below 6"); - return; - } - - if (png_ptr->zbuffer_size != size) - { - png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list); - png_ptr->zbuffer_size = (uInt)size; - } - } -# endif -} - -void PNGAPI -png_set_invalid(png_const_structrp png_ptr, png_inforp info_ptr, int mask) -{ - if (png_ptr && info_ptr) - info_ptr->valid &= ~mask; -} - - -#ifdef PNG_SET_USER_LIMITS_SUPPORTED -/* This function was added to libpng 1.2.6 */ -void PNGAPI -png_set_user_limits (png_structrp png_ptr, png_uint_32 user_width_max, - png_uint_32 user_height_max) -{ - /* Images with dimensions larger than these limits will be - * rejected by png_set_IHDR(). To accept any PNG datastream - * regardless of dimensions, set both limits to 0x7ffffffL. - */ - if (png_ptr == NULL) - return; - - png_ptr->user_width_max = user_width_max; - png_ptr->user_height_max = user_height_max; -} - -/* This function was added to libpng 1.4.0 */ -void PNGAPI -png_set_chunk_cache_max (png_structrp png_ptr, png_uint_32 user_chunk_cache_max) -{ - if (png_ptr != NULL) - png_ptr->user_chunk_cache_max = user_chunk_cache_max; -} - -/* This function was added to libpng 1.4.1 */ -void PNGAPI -png_set_chunk_malloc_max (png_structrp png_ptr, - png_alloc_size_t user_chunk_malloc_max) -{ - if (png_ptr != NULL) - png_ptr->user_chunk_malloc_max = user_chunk_malloc_max; -} -#endif /* ?PNG_SET_USER_LIMITS_SUPPORTED */ - - -#ifdef PNG_BENIGN_ERRORS_SUPPORTED -void PNGAPI -png_set_benign_errors(png_structrp png_ptr, int allowed) -{ - png_debug(1, "in png_set_benign_errors"); - - /* If allowed is 1, png_benign_error() is treated as a warning. - * - * If allowed is 0, png_benign_error() is treated as an error (which - * is the default behavior if png_set_benign_errors() is not called). - */ - - if (allowed != 0) - png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN | - PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN; - - else - png_ptr->flags &= ~(PNG_FLAG_BENIGN_ERRORS_WARN | - PNG_FLAG_APP_WARNINGS_WARN | PNG_FLAG_APP_ERRORS_WARN); -} -#endif /* PNG_BENIGN_ERRORS_SUPPORTED */ - -#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED - /* Whether to report invalid palette index; added at libng-1.5.10. - * It is possible for an indexed (color-type==3) PNG file to contain - * pixels with invalid (out-of-range) indexes if the PLTE chunk has - * fewer entries than the image's bit-depth would allow. We recover - * from this gracefully by filling any incomplete palette with zeroes - * (opaque black). By default, when this occurs libpng will issue - * a benign error. This API can be used to override that behavior. - */ -void PNGAPI -png_set_check_for_invalid_index(png_structrp png_ptr, int allowed) -{ - png_debug(1, "in png_set_check_for_invalid_index"); - - if (allowed > 0) - png_ptr->num_palette_max = 0; - - else - png_ptr->num_palette_max = -1; -} -#endif -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngstruct.h b/png/pngstruct.h deleted file mode 100755 index d58c028..0000000 --- a/png/pngstruct.h +++ /dev/null @@ -1,489 +0,0 @@ - -/* pngstruct.h - header file for PNG reference library - * - * Copyright (c) 1998-2013 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * Last changed in libpng 1.6.1 [March 28, 2013] - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -/* The structure that holds the information to read and write PNG files. - * The only people who need to care about what is inside of this are the - * people who will be modifying the library for their own special needs. - * It should NOT be accessed directly by an application. - */ - -#ifndef PNGSTRUCT_H -#define PNGSTRUCT_H -/* zlib.h defines the structure z_stream, an instance of which is included - * in this structure and is required for decompressing the LZ compressed - * data in PNG files. - */ -#ifndef ZLIB_CONST - /* We must ensure that zlib uses 'const' in declarations. */ -# define ZLIB_CONST -#endif -#include "zlib.h" -#ifdef const - /* zlib.h sometimes #defines const to nothing, undo this. */ -# undef const -#endif - -/* zlib.h has mediocre z_const use before 1.2.6, this stuff is for compatibility - * with older builds. - */ -#if ZLIB_VERNUM < 0x1260 -# define PNGZ_MSG_CAST(s) png_constcast(char*,s) -# define PNGZ_INPUT_CAST(b) png_constcast(png_bytep,b) -#else -# define PNGZ_MSG_CAST(s) (s) -# define PNGZ_INPUT_CAST(b) (b) -#endif - -/* zlib.h declares a magic type 'uInt' that limits the amount of data that zlib - * can handle at once. This type need be no larger than 16 bits (so maximum of - * 65535), this define allows us to discover how big it is, but limited by the - * maximuum for png_size_t. The value can be overriden in a library build - * (pngusr.h, or set it in CPPFLAGS) and it works to set it to a considerably - * lower value (e.g. 255 works). A lower value may help memory usage (slightly) - * and may even improve performance on some systems (and degrade it on others.) - */ -#ifndef ZLIB_IO_MAX -# define ZLIB_IO_MAX ((uInt)-1) -#endif - -#ifdef PNG_WRITE_SUPPORTED -/* The type of a compression buffer list used by the write code. */ -typedef struct png_compression_buffer -{ - struct png_compression_buffer *next; - png_byte output[1]; /* actually zbuf_size */ -} png_compression_buffer, *png_compression_bufferp; - -#define PNG_COMPRESSION_BUFFER_SIZE(pp)\ - (offsetof(png_compression_buffer, output) + (pp)->zbuffer_size) -#endif - -/* Colorspace support; structures used in png_struct, png_info and in internal - * functions to hold and communicate information about the color space. - * - * PNG_COLORSPACE_SUPPORTED is only required if the application will perform - * colorspace corrections, otherwise all the colorspace information can be - * skipped and the size of libpng can be reduced (significantly) by compiling - * out the colorspace support. - */ -#ifdef PNG_COLORSPACE_SUPPORTED -/* The chromaticities of the red, green and blue colorants and the chromaticity - * of the corresponding white point (i.e. of rgb(1.0,1.0,1.0)). - */ -typedef struct png_xy -{ - png_fixed_point redx, redy; - png_fixed_point greenx, greeny; - png_fixed_point bluex, bluey; - png_fixed_point whitex, whitey; -} png_xy; - -/* The same data as above but encoded as CIE XYZ values. When this data comes - * from chromaticities the sum of the Y values is assumed to be 1.0 - */ -typedef struct png_XYZ -{ - png_fixed_point red_X, red_Y, red_Z; - png_fixed_point green_X, green_Y, green_Z; - png_fixed_point blue_X, blue_Y, blue_Z; -} png_XYZ; -#endif /* COLORSPACE */ - -#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) -/* A colorspace is all the above plus, potentially, profile information, - * however at present libpng does not use the profile internally so it is only - * stored in the png_info struct (if iCCP is supported.) The rendering intent - * is retained here and is checked. - * - * The file gamma encoding information is also stored here and gamma correction - * is done by libpng, whereas color correction must currently be done by the - * application. - */ -typedef struct png_colorspace -{ -#ifdef PNG_GAMMA_SUPPORTED - png_fixed_point gamma; /* File gamma */ -#endif - -#ifdef PNG_COLORSPACE_SUPPORTED - png_xy end_points_xy; /* End points as chromaticities */ - png_XYZ end_points_XYZ; /* End points as CIE XYZ colorant values */ - png_uint_16 rendering_intent; /* Rendering intent of a profile */ -#endif - - /* Flags are always defined to simplify the code. */ - png_uint_16 flags; /* As defined below */ -} png_colorspace, * PNG_RESTRICT png_colorspacerp; - -typedef const png_colorspace * PNG_RESTRICT png_const_colorspacerp; - -/* General flags for the 'flags' field */ -#define PNG_COLORSPACE_HAVE_GAMMA 0x0001 -#define PNG_COLORSPACE_HAVE_ENDPOINTS 0x0002 -#define PNG_COLORSPACE_HAVE_INTENT 0x0004 -#define PNG_COLORSPACE_FROM_gAMA 0x0008 -#define PNG_COLORSPACE_FROM_cHRM 0x0010 -#define PNG_COLORSPACE_FROM_sRGB 0x0020 -#define PNG_COLORSPACE_ENDPOINTS_MATCH_sRGB 0x0040 -#define PNG_COLORSPACE_MATCHES_sRGB 0x0080 /* exact match on profile */ -#define PNG_COLORSPACE_INVALID 0x8000 -#define PNG_COLORSPACE_CANCEL(flags) (0xffff ^ (flags)) -#endif /* COLORSPACE || GAMMA */ - -struct png_struct_def -{ -#ifdef PNG_SETJMP_SUPPORTED - jmp_buf jmp_buf_local; /* New name in 1.6.0 for jmp_buf in png_struct */ - png_longjmp_ptr longjmp_fn;/* setjmp non-local goto function. */ - jmp_buf *jmp_buf_ptr; /* passed to longjmp_fn */ - size_t jmp_buf_size; /* size of the above, if allocated */ -#endif - png_error_ptr error_fn; /* function for printing errors and aborting */ -#ifdef PNG_WARNINGS_SUPPORTED - png_error_ptr warning_fn; /* function for printing warnings */ -#endif - png_voidp error_ptr; /* user supplied struct for error functions */ - png_rw_ptr write_data_fn; /* function for writing output data */ - png_rw_ptr read_data_fn; /* function for reading input data */ - png_voidp io_ptr; /* ptr to application struct for I/O functions */ - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - png_user_transform_ptr read_user_transform_fn; /* user read transform */ -#endif - -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED - png_user_transform_ptr write_user_transform_fn; /* user write transform */ -#endif - -/* These were added in libpng-1.0.2 */ -#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) - png_voidp user_transform_ptr; /* user supplied struct for user transform */ - png_byte user_transform_depth; /* bit depth of user transformed pixels */ - png_byte user_transform_channels; /* channels in user transformed pixels */ -#endif -#endif - - png_uint_32 mode; /* tells us where we are in the PNG file */ - png_uint_32 flags; /* flags indicating various things to libpng */ - png_uint_32 transformations; /* which transformations to perform */ - - png_uint_32 zowner; /* ID (chunk type) of zstream owner, 0 if none */ - z_stream zstream; /* decompression structure */ - -#ifdef PNG_WRITE_SUPPORTED - png_compression_bufferp zbuffer_list; /* Created on demand during write */ - uInt zbuffer_size; /* size of the actual buffer */ - - int zlib_level; /* holds zlib compression level */ - int zlib_method; /* holds zlib compression method */ - int zlib_window_bits; /* holds zlib compression window bits */ - int zlib_mem_level; /* holds zlib compression memory level */ - int zlib_strategy; /* holds zlib compression strategy */ -#endif -/* Added at libpng 1.5.4 */ -#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED - int zlib_text_level; /* holds zlib compression level */ - int zlib_text_method; /* holds zlib compression method */ - int zlib_text_window_bits; /* holds zlib compression window bits */ - int zlib_text_mem_level; /* holds zlib compression memory level */ - int zlib_text_strategy; /* holds zlib compression strategy */ -#endif -/* End of material added at libpng 1.5.4 */ -/* Added at libpng 1.6.0 */ -#ifdef PNG_WRITE_SUPPORTED - int zlib_set_level; /* Actual values set into the zstream on write */ - int zlib_set_method; - int zlib_set_window_bits; - int zlib_set_mem_level; - int zlib_set_strategy; -#endif - - png_uint_32 width; /* width of image in pixels */ - png_uint_32 height; /* height of image in pixels */ - png_uint_32 num_rows; /* number of rows in current pass */ - png_uint_32 usr_width; /* width of row at start of write */ - png_size_t rowbytes; /* size of row in bytes */ - png_uint_32 iwidth; /* width of current interlaced row in pixels */ - png_uint_32 row_number; /* current row in interlace pass */ - png_uint_32 chunk_name; /* PNG_CHUNK() id of current chunk */ - png_bytep prev_row; /* buffer to save previous (unfiltered) row. - * This is a pointer into big_prev_row - */ - png_bytep row_buf; /* buffer to save current (unfiltered) row. - * This is a pointer into big_row_buf - */ -#ifdef PNG_WRITE_SUPPORTED - png_bytep sub_row; /* buffer to save "sub" row when filtering */ - png_bytep up_row; /* buffer to save "up" row when filtering */ - png_bytep avg_row; /* buffer to save "avg" row when filtering */ - png_bytep paeth_row; /* buffer to save "Paeth" row when filtering */ -#endif - png_size_t info_rowbytes; /* Added in 1.5.4: cache of updated row bytes */ - - png_uint_32 idat_size; /* current IDAT size for read */ - png_uint_32 crc; /* current chunk CRC value */ - png_colorp palette; /* palette from the input file */ - png_uint_16 num_palette; /* number of color entries in palette */ - -/* Added at libpng-1.5.10 */ -#ifdef PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED - int num_palette_max; /* maximum palette index found in IDAT */ -#endif - - png_uint_16 num_trans; /* number of transparency values */ - png_byte compression; /* file compression type (always 0) */ - png_byte filter; /* file filter type (always 0) */ - png_byte interlaced; /* PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */ - png_byte pass; /* current interlace pass (0 - 6) */ - png_byte do_filter; /* row filter flags (see PNG_FILTER_ below ) */ - png_byte color_type; /* color type of file */ - png_byte bit_depth; /* bit depth of file */ - png_byte usr_bit_depth; /* bit depth of users row: write only */ - png_byte pixel_depth; /* number of bits per pixel */ - png_byte channels; /* number of channels in file */ -#ifdef PNG_WRITE_SUPPORTED - png_byte usr_channels; /* channels at start of write: write only */ -#endif - png_byte sig_bytes; /* magic bytes read/written from start of file */ - png_byte maximum_pixel_depth; - /* pixel depth used for the row buffers */ - png_byte transformed_pixel_depth; - /* pixel depth after read/write transforms */ -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) - png_uint_16 filler; /* filler bytes for pixel expansion */ -#endif - -#if defined(PNG_bKGD_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) ||\ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) - png_byte background_gamma_type; - png_fixed_point background_gamma; - png_color_16 background; /* background color in screen gamma space */ -#ifdef PNG_READ_GAMMA_SUPPORTED - png_color_16 background_1; /* background normalized to gamma 1.0 */ -#endif -#endif /* PNG_bKGD_SUPPORTED */ - -#ifdef PNG_WRITE_FLUSH_SUPPORTED - png_flush_ptr output_flush_fn; /* Function for flushing output */ - png_uint_32 flush_dist; /* how many rows apart to flush, 0 - no flush */ - png_uint_32 flush_rows; /* number of rows written since last flush */ -#endif - -#ifdef PNG_READ_GAMMA_SUPPORTED - int gamma_shift; /* number of "insignificant" bits in 16-bit gamma */ - png_fixed_point screen_gamma; /* screen gamma value (display_exponent) */ - - png_bytep gamma_table; /* gamma table for 8-bit depth files */ - png_uint_16pp gamma_16_table; /* gamma table for 16-bit depth files */ -#if defined(PNG_READ_BACKGROUND_SUPPORTED) || \ - defined(PNG_READ_ALPHA_MODE_SUPPORTED) || \ - defined(PNG_READ_RGB_TO_GRAY_SUPPORTED) - png_bytep gamma_from_1; /* converts from 1.0 to screen */ - png_bytep gamma_to_1; /* converts from file to 1.0 */ - png_uint_16pp gamma_16_from_1; /* converts from 1.0 to screen */ - png_uint_16pp gamma_16_to_1; /* converts from file to 1.0 */ -#endif /* READ_BACKGROUND || READ_ALPHA_MODE || RGB_TO_GRAY */ -#endif - -#if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_sBIT_SUPPORTED) - png_color_8 sig_bit; /* significant bits in each available channel */ -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) - png_color_8 shift; /* shift for significant bit tranformation */ -#endif - -#if defined(PNG_tRNS_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) \ - || defined(PNG_READ_EXPAND_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED) - png_bytep trans_alpha; /* alpha values for paletted files */ - png_color_16 trans_color; /* transparent color for non-paletted files */ -#endif - - png_read_status_ptr read_row_fn; /* called after each row is decoded */ - png_write_status_ptr write_row_fn; /* called after each row is encoded */ -#ifdef PNG_PROGRESSIVE_READ_SUPPORTED - png_progressive_info_ptr info_fn; /* called after header data fully read */ - png_progressive_row_ptr row_fn; /* called after a prog. row is decoded */ - png_progressive_end_ptr end_fn; /* called after image is complete */ - png_bytep save_buffer_ptr; /* current location in save_buffer */ - png_bytep save_buffer; /* buffer for previously read data */ - png_bytep current_buffer_ptr; /* current location in current_buffer */ - png_bytep current_buffer; /* buffer for recently used data */ - png_uint_32 push_length; /* size of current input chunk */ - png_uint_32 skip_length; /* bytes to skip in input data */ - png_size_t save_buffer_size; /* amount of data now in save_buffer */ - png_size_t save_buffer_max; /* total size of save_buffer */ - png_size_t buffer_size; /* total amount of available input data */ - png_size_t current_buffer_size; /* amount of data now in current_buffer */ - int process_mode; /* what push library is currently doing */ - int cur_palette; /* current push library palette index */ - -#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ - -#if defined(__TURBOC__) && !defined(_Windows) && !defined(__FLAT__) -/* For the Borland special 64K segment handler */ - png_bytepp offset_table_ptr; - png_bytep offset_table; - png_uint_16 offset_table_number; - png_uint_16 offset_table_count; - png_uint_16 offset_table_count_free; -#endif - -#ifdef PNG_READ_QUANTIZE_SUPPORTED - png_bytep palette_lookup; /* lookup table for quantizing */ - png_bytep quantize_index; /* index translation for palette files */ -#endif - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - png_byte heuristic_method; /* heuristic for row filter selection */ - png_byte num_prev_filters; /* number of weights for previous rows */ - png_bytep prev_filters; /* filter type(s) of previous row(s) */ - png_uint_16p filter_weights; /* weight(s) for previous line(s) */ - png_uint_16p inv_filter_weights; /* 1/weight(s) for previous line(s) */ - png_uint_16p filter_costs; /* relative filter calculation cost */ - png_uint_16p inv_filter_costs; /* 1/relative filter calculation cost */ -#endif - - /* Options */ -#ifdef PNG_SET_OPTION_SUPPORTED - png_byte options; /* On/off state (up to 4 options) */ -#endif - -#if PNG_LIBPNG_VER < 10700 -/* To do: remove this from libpng-1.7 */ -#ifdef PNG_TIME_RFC1123_SUPPORTED - char time_buffer[29]; /* String to hold RFC 1123 time text */ -#endif -#endif - -/* New members added in libpng-1.0.6 */ - - png_uint_32 free_me; /* flags items libpng is responsible for freeing */ - -#ifdef PNG_USER_CHUNKS_SUPPORTED - png_voidp user_chunk_ptr; -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED - png_user_chunk_ptr read_user_chunk_fn; /* user read chunk handler */ -#endif -#endif - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - int unknown_default; /* As PNG_HANDLE_* */ - unsigned int num_chunk_list; /* Number of entries in the list */ - png_bytep chunk_list; /* List of png_byte[5]; the textual chunk name - * followed by a PNG_HANDLE_* byte */ -#endif - -/* New members added in libpng-1.0.3 */ -#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED - png_byte rgb_to_gray_status; - /* Added in libpng 1.5.5 to record setting of coefficients: */ - png_byte rgb_to_gray_coefficients_set; - /* These were changed from png_byte in libpng-1.0.6 */ - png_uint_16 rgb_to_gray_red_coeff; - png_uint_16 rgb_to_gray_green_coeff; - /* deleted in 1.5.5: rgb_to_gray_blue_coeff; */ -#endif - -/* New member added in libpng-1.0.4 (renamed in 1.0.9) */ -#if defined(PNG_MNG_FEATURES_SUPPORTED) -/* Changed from png_byte to png_uint_32 at version 1.2.0 */ - png_uint_32 mng_features_permitted; -#endif - -/* New member added in libpng-1.0.9, ifdef'ed out in 1.0.12, enabled in 1.2.0 */ -#ifdef PNG_MNG_FEATURES_SUPPORTED - png_byte filter_type; -#endif - -/* New members added in libpng-1.2.0 */ - -/* New members added in libpng-1.0.2 but first enabled by default in 1.2.0 */ -#ifdef PNG_USER_MEM_SUPPORTED - png_voidp mem_ptr; /* user supplied struct for mem functions */ - png_malloc_ptr malloc_fn; /* function for allocating memory */ - png_free_ptr free_fn; /* function for freeing memory */ -#endif - -/* New member added in libpng-1.0.13 and 1.2.0 */ - png_bytep big_row_buf; /* buffer to save current (unfiltered) row */ - -#ifdef PNG_READ_QUANTIZE_SUPPORTED -/* The following three members were added at version 1.0.14 and 1.2.4 */ - png_bytep quantize_sort; /* working sort array */ - png_bytep index_to_palette; /* where the original index currently is - in the palette */ - png_bytep palette_to_index; /* which original index points to this - palette color */ -#endif - -/* New members added in libpng-1.0.16 and 1.2.6 */ - png_byte compression_type; - -#ifdef PNG_USER_LIMITS_SUPPORTED - png_uint_32 user_width_max; - png_uint_32 user_height_max; - - /* Added in libpng-1.4.0: Total number of sPLT, text, and unknown - * chunks that can be stored (0 means unlimited). - */ - png_uint_32 user_chunk_cache_max; - - /* Total memory that a zTXt, sPLT, iTXt, iCCP, or unknown chunk - * can occupy when decompressed. 0 means unlimited. - */ - png_alloc_size_t user_chunk_malloc_max; -#endif - -/* New member added in libpng-1.0.25 and 1.2.17 */ -#ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED - /* Temporary storage for unknown chunk that the library doesn't recognize, - * used while reading the chunk. - */ - png_unknown_chunk unknown_chunk; -#endif - -/* New member added in libpng-1.2.26 */ - png_size_t old_big_row_buf_size; - -#ifdef PNG_READ_SUPPORTED -/* New member added in libpng-1.2.30 */ - png_bytep read_buffer; /* buffer for reading chunk data */ - png_alloc_size_t read_buffer_size; /* current size of the buffer */ -#endif -#ifdef PNG_SEQUENTIAL_READ_SUPPORTED - uInt IDAT_read_size; /* limit on read buffer size for IDAT */ -#endif - -#ifdef PNG_IO_STATE_SUPPORTED -/* New member added in libpng-1.4.0 */ - png_uint_32 io_state; -#endif - -/* New member added in libpng-1.5.6 */ - png_bytep big_prev_row; - -/* New member added in libpng-1.5.7 */ - void (*read_filter[PNG_FILTER_VALUE_LAST-1])(png_row_infop row_info, - png_bytep row, png_const_bytep prev_row); - -#ifdef PNG_READ_SUPPORTED -#if defined(PNG_COLORSPACE_SUPPORTED) || defined(PNG_GAMMA_SUPPORTED) - png_colorspace colorspace; -#endif -#endif -}; -#endif /* PNGSTRUCT_H */ diff --git a/png/pngtest.c b/png/pngtest.c deleted file mode 100755 index ffac74e..0000000 --- a/png/pngtest.c +++ /dev/null @@ -1,1994 +0,0 @@ - -/* pngtest.c - a simple test program to test libpng - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This program reads in a PNG image, writes it out again, and then - * compares the two files. If the files are identical, this shows that - * the basic chunk handling, filtering, and (de)compression code is working - * properly. It does not currently test all of the transforms, although - * it probably should. - * - * The program will report "FAIL" in certain legitimate cases: - * 1) when the compression level or filter selection method is changed. - * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192. - * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks - * exist in the input file. - * 4) others not listed here... - * In these cases, it is best to check with another tool such as "pngcheck" - * to see what the differences between the two files are. - * - * If a filename is given on the command-line, then this file is used - * for the input, rather than the default "pngtest.png". This allows - * testing a wide variety of files easily. You can also test a number - * of files at once by typing "pngtest -m file1.png file2.png ..." - */ - -#define _POSIX_SOURCE 1 - -#include -#include -#include - -/* Defined so I can write to a file on gui/windowing platforms */ -/* #define STDERR stderr */ -#define STDERR stdout /* For DOS */ - -#include "png.h" - -/* Known chunks that exist in pngtest.png must be supported or pngtest will fail - * simply as a result of re-ordering them. This may be fixed in 1.7 - * - * pngtest allocates a single row buffer for each row and overwrites it, - * therefore if the write side doesn't support the writing of interlaced images - * nothing can be done for an interlaced image (and the code below will fail - * horribly trying to write extra data after writing garbage). - */ -#if defined PNG_READ_SUPPORTED && /* else nothing can be done */\ - defined PNG_READ_bKGD_SUPPORTED &&\ - defined PNG_READ_cHRM_SUPPORTED &&\ - defined PNG_READ_gAMA_SUPPORTED &&\ - defined PNG_READ_oFFs_SUPPORTED &&\ - defined PNG_READ_pCAL_SUPPORTED &&\ - defined PNG_READ_pHYs_SUPPORTED &&\ - defined PNG_READ_sBIT_SUPPORTED &&\ - defined PNG_READ_sCAL_SUPPORTED &&\ - defined PNG_READ_sRGB_SUPPORTED &&\ - defined PNG_READ_tEXt_SUPPORTED &&\ - defined PNG_READ_tIME_SUPPORTED &&\ - defined PNG_READ_zTXt_SUPPORTED &&\ - defined PNG_WRITE_INTERLACING_SUPPORTED - -#ifdef PNG_ZLIB_HEADER -# include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */ -#else -# include "zlib.h" -#endif - -/* Copied from pngpriv.h but only used in error messages below. */ -#ifndef PNG_ZBUF_SIZE -# define PNG_ZBUF_SIZE 8192 -#endif -#define FCLOSE(file) fclose(file) - -#ifndef PNG_STDIO_SUPPORTED -typedef FILE * png_FILE_p; -#endif - -/* Makes pngtest verbose so we can find problems. */ -#ifndef PNG_DEBUG -# define PNG_DEBUG 0 -#endif - -#if PNG_DEBUG > 1 -# define pngtest_debug(m) ((void)fprintf(stderr, m "\n")) -# define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1)) -# define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2)) -#else -# define pngtest_debug(m) ((void)0) -# define pngtest_debug1(m,p1) ((void)0) -# define pngtest_debug2(m,p1,p2) ((void)0) -#endif - -#if !PNG_DEBUG -# define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */ -#endif - -/* Turn on CPU timing -#define PNGTEST_TIMING -*/ - -#ifndef PNG_FLOATING_POINT_SUPPORTED -#undef PNGTEST_TIMING -#endif - -#ifdef PNGTEST_TIMING -static float t_start, t_stop, t_decode, t_encode, t_misc; -#include -#endif - -#ifdef PNG_TIME_RFC1123_SUPPORTED -#define PNG_tIME_STRING_LENGTH 29 -static int tIME_chunk_present = 0; -static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present"; -#endif - -static int verbose = 0; -static int strict = 0; -static int relaxed = 0; -static int unsupported_chunks = 0; /* chunk unsupported by libpng in input */ -static int error_count = 0; /* count calls to png_error */ -static int warning_count = 0; /* count calls to png_warning */ - -/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ -#ifndef png_jmpbuf -# define png_jmpbuf(png_ptr) png_ptr->jmpbuf -#endif - -/* Defines for unknown chunk handling if required. */ -#ifndef PNG_HANDLE_CHUNK_ALWAYS -# define PNG_HANDLE_CHUNK_ALWAYS 3 -#endif -#ifndef PNG_HANDLE_CHUNK_IF_SAFE -# define PNG_HANDLE_CHUNK_IF_SAFE 2 -#endif - -/* Utility to save typing/errors, the argument must be a name */ -#define MEMZERO(var) ((void)memset(&var, 0, sizeof var)) - -/* Example of using row callbacks to make a simple progress meter */ -static int status_pass = 1; -static int status_dots_requested = 0; -static int status_dots = 1; - -static void PNGCBAPI -read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) -{ - if (png_ptr == NULL || row_number > PNG_UINT_31_MAX) - return; - - if (status_pass != pass) - { - fprintf(stdout, "\n Pass %d: ", pass); - status_pass = pass; - status_dots = 31; - } - - status_dots--; - - if (status_dots == 0) - { - fprintf(stdout, "\n "); - status_dots=30; - } - - fprintf(stdout, "r"); -} - -#ifdef PNG_WRITE_SUPPORTED -static void PNGCBAPI -write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) -{ - if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) - return; - - fprintf(stdout, "w"); -} -#endif - - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED -/* Example of using user transform callback (we don't transform anything, - * but merely examine the row filters. We set this to 256 rather than - * 5 in case illegal filter values are present.) - */ -static png_uint_32 filters_used[256]; -static void PNGCBAPI -count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) -{ - if (png_ptr != NULL && row_info != NULL) - ++filters_used[*(data - 1)]; -} -#endif - -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED -/* Example of using user transform callback (we don't transform anything, - * but merely count the zero samples) - */ - -static png_uint_32 zero_samples; - -static void PNGCBAPI -count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) -{ - png_bytep dp = data; - if (png_ptr == NULL) - return; - - /* Contents of row_info: - * png_uint_32 width width of row - * png_uint_32 rowbytes number of bytes in row - * png_byte color_type color type of pixels - * png_byte bit_depth bit depth of samples - * png_byte channels number of channels (1-4) - * png_byte pixel_depth bits per pixel (depth*channels) - */ - - /* Counts the number of zero samples (or zero pixels if color_type is 3 */ - - if (row_info->color_type == 0 || row_info->color_type == 3) - { - int pos = 0; - png_uint_32 n, nstop; - - for (n = 0, nstop=row_info->width; nbit_depth == 1) - { - if (((*dp << pos++ ) & 0x80) == 0) - zero_samples++; - - if (pos == 8) - { - pos = 0; - dp++; - } - } - - if (row_info->bit_depth == 2) - { - if (((*dp << (pos+=2)) & 0xc0) == 0) - zero_samples++; - - if (pos == 8) - { - pos = 0; - dp++; - } - } - - if (row_info->bit_depth == 4) - { - if (((*dp << (pos+=4)) & 0xf0) == 0) - zero_samples++; - - if (pos == 8) - { - pos = 0; - dp++; - } - } - - if (row_info->bit_depth == 8) - if (*dp++ == 0) - zero_samples++; - - if (row_info->bit_depth == 16) - { - if ((*dp | *(dp+1)) == 0) - zero_samples++; - dp+=2; - } - } - } - else /* Other color types */ - { - png_uint_32 n, nstop; - int channel; - int color_channels = row_info->channels; - if (row_info->color_type > 3)color_channels--; - - for (n = 0, nstop=row_info->width; nbit_depth == 8) - if (*dp++ == 0) - zero_samples++; - - if (row_info->bit_depth == 16) - { - if ((*dp | *(dp+1)) == 0) - zero_samples++; - - dp+=2; - } - } - if (row_info->color_type > 3) - { - dp++; - if (row_info->bit_depth == 16) - dp++; - } - } - } -} -#endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ - -#ifndef PNG_STDIO_SUPPORTED -/* START of code to validate stdio-free compilation */ -/* These copies of the default read/write functions come from pngrio.c and - * pngwio.c. They allow "don't include stdio" testing of the library. - * This is the function that does the actual reading of data. If you are - * not reading from a standard C stream, you should create a replacement - * read_data function and use it at run time with png_set_read_fn(), rather - * than changing the library. - */ - -#ifdef PNG_IO_STATE_SUPPORTED -void -pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, - png_uint_32 io_op); -void -pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, - png_uint_32 io_op) -{ - png_uint_32 io_state = png_get_io_state(png_ptr); - int err = 0; - - /* Check if the current operation (reading / writing) is as expected. */ - if ((io_state & PNG_IO_MASK_OP) != io_op) - png_error(png_ptr, "Incorrect operation in I/O state"); - - /* Check if the buffer size specific to the current location - * (file signature / header / data / crc) is as expected. - */ - switch (io_state & PNG_IO_MASK_LOC) - { - case PNG_IO_SIGNATURE: - if (data_length > 8) - err = 1; - break; - case PNG_IO_CHUNK_HDR: - if (data_length != 8) - err = 1; - break; - case PNG_IO_CHUNK_DATA: - break; /* no restrictions here */ - case PNG_IO_CHUNK_CRC: - if (data_length != 4) - err = 1; - break; - default: - err = 1; /* uninitialized */ - } - if (err != 0) - png_error(png_ptr, "Bad I/O state or buffer size"); -} -#endif - -static void PNGCBAPI -pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check = 0; - png_voidp io_ptr; - - /* fread() returns 0 on error, so it is OK to store this in a png_size_t - * instead of an int, which is what fread() actually returns. - */ - io_ptr = png_get_io_ptr(png_ptr); - if (io_ptr != NULL) - { - check = fread(data, 1, length, (png_FILE_p)io_ptr); - } - - if (check != length) - { - png_error(png_ptr, "Read Error"); - } - -#ifdef PNG_IO_STATE_SUPPORTED - pngtest_check_io_state(png_ptr, length, PNG_IO_READING); -#endif -} - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -static void PNGCBAPI -pngtest_flush(png_structp png_ptr) -{ - /* Do nothing; fflush() is said to be just a waste of energy. */ - PNG_UNUSED(png_ptr) /* Stifle compiler warning */ -} -#endif - -/* This is the function that does the actual writing of data. If you are - * not writing to a standard C stream, you should create a replacement - * write_data function and use it at run time with png_set_write_fn(), rather - * than changing the library. - */ -static void PNGCBAPI -pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - - check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr)); - - if (check != length) - { - png_error(png_ptr, "Write Error"); - } - -#ifdef PNG_IO_STATE_SUPPORTED - pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING); -#endif -} -#endif /* !PNG_STDIO_SUPPORTED */ - -/* This function is called when there is a warning, but the library thinks - * it can continue anyway. Replacement functions don't have to do anything - * here if you don't want to. In the default configuration, png_ptr is - * not used, but it is passed in case it may be useful. - */ -typedef struct -{ - PNG_CONST char *file_name; -} pngtest_error_parameters; - -static void PNGCBAPI -pngtest_warning(png_structp png_ptr, png_const_charp message) -{ - PNG_CONST char *name = "UNKNOWN (ERROR!)"; - pngtest_error_parameters *test = - (pngtest_error_parameters*)png_get_error_ptr(png_ptr); - - ++warning_count; - - if (test != NULL && test->file_name != NULL) - name = test->file_name; - - fprintf(STDERR, "%s: libpng warning: %s\n", name, message); -} - -/* This is the default error handling function. Note that replacements for - * this function MUST NOT RETURN, or the program will likely crash. This - * function is used by default, or if the program supplies NULL for the - * error function pointer in png_set_error_fn(). - */ -static void PNGCBAPI -pngtest_error(png_structp png_ptr, png_const_charp message) -{ - ++error_count; - - pngtest_warning(png_ptr, message); - /* We can return because png_error calls the default handler, which is - * actually OK in this case. - */ -} - -/* END of code to validate stdio-free compilation */ - -/* START of code to validate memory allocation and deallocation */ -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - -/* Allocate memory. For reasonable files, size should never exceed - * 64K. However, zlib may allocate more then 64K if you don't tell - * it not to. See zconf.h and png.h for more information. zlib does - * need to allocate exactly 64K, so whatever you call here must - * have the ability to do that. - * - * This piece of code can be compiled to validate max 64K allocations - * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. - */ -typedef struct memory_information -{ - png_alloc_size_t size; - png_voidp pointer; - struct memory_information *next; -} memory_information; -typedef memory_information *memory_infop; - -static memory_infop pinformation = NULL; -static int current_allocation = 0; -static int maximum_allocation = 0; -static int total_allocation = 0; -static int num_allocations = 0; - -png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr, - png_alloc_size_t size)); -void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr)); - -png_voidp -PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size) -{ - - /* png_malloc has already tested for NULL; png_create_struct calls - * png_debug_malloc directly, with png_ptr == NULL which is OK - */ - - if (size == 0) - return (NULL); - - /* This calls the library allocator twice, once to get the requested - buffer and once to get a new free list entry. */ - { - /* Disable malloc_fn and free_fn */ - memory_infop pinfo; - png_set_mem_fn(png_ptr, NULL, NULL, NULL); - pinfo = (memory_infop)png_malloc(png_ptr, - (sizeof *pinfo)); - pinfo->size = size; - current_allocation += size; - total_allocation += size; - num_allocations ++; - - if (current_allocation > maximum_allocation) - maximum_allocation = current_allocation; - - pinfo->pointer = png_malloc(png_ptr, size); - /* Restore malloc_fn and free_fn */ - - png_set_mem_fn(png_ptr, - NULL, png_debug_malloc, png_debug_free); - - if (size != 0 && pinfo->pointer == NULL) - { - current_allocation -= size; - total_allocation -= size; - png_error(png_ptr, - "out of memory in pngtest->png_debug_malloc"); - } - - pinfo->next = pinformation; - pinformation = pinfo; - /* Make sure the caller isn't assuming zeroed memory. */ - memset(pinfo->pointer, 0xdd, pinfo->size); - - if (verbose != 0) - printf("png_malloc %lu bytes at %p\n", (unsigned long)size, - pinfo->pointer); - - return (png_voidp)(pinfo->pointer); - } -} - -/* Free a pointer. It is removed from the list at the same time. */ -void PNGCBAPI -png_debug_free(png_structp png_ptr, png_voidp ptr) -{ - if (png_ptr == NULL) - fprintf(STDERR, "NULL pointer to png_debug_free.\n"); - - if (ptr == 0) - { -#if 0 /* This happens all the time. */ - fprintf(STDERR, "WARNING: freeing NULL pointer\n"); -#endif - return; - } - - /* Unlink the element from the list. */ - { - memory_infop *ppinfo = &pinformation; - - for (;;) - { - memory_infop pinfo = *ppinfo; - - if (pinfo->pointer == ptr) - { - *ppinfo = pinfo->next; - current_allocation -= pinfo->size; - if (current_allocation < 0) - fprintf(STDERR, "Duplicate free of memory\n"); - /* We must free the list element too, but first kill - the memory that is to be freed. */ - memset(ptr, 0x55, pinfo->size); - if (pinfo != NULL) - free(pinfo); - pinfo = NULL; - break; - } - - if (pinfo->next == NULL) - { - fprintf(STDERR, "Pointer %x not found\n", (unsigned int)ptr); - break; - } - - ppinfo = &pinfo->next; - } - } - - /* Finally free the data. */ - if (verbose != 0) - printf("Freeing %p\n", ptr); - - if (ptr != NULL) - free(ptr); - ptr = NULL; -} -#endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */ -/* END of code to test memory allocation/deallocation */ - - -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED -/* Demonstration of user chunk support of the sTER and vpAg chunks */ - -/* (sTER is a public chunk not yet known by libpng. vpAg is a private -chunk used in ImageMagick to store "virtual page" size). */ - -static struct user_chunk_data -{ - png_const_infop info_ptr; - png_uint_32 vpAg_width, vpAg_height; - png_byte vpAg_units; - png_byte sTER_mode; - int location[2]; -} -user_chunk_data; - -/* Used for location and order; zero means nothing. */ -#define have_sTER 0x01 -#define have_vpAg 0x02 -#define before_PLTE 0x10 -#define before_IDAT 0x20 -#define after_IDAT 0x40 - -static void -init_callback_info(png_const_infop info_ptr) -{ - MEMZERO(user_chunk_data); - user_chunk_data.info_ptr = info_ptr; -} - -static int -set_location(png_structp png_ptr, struct user_chunk_data *data, int what) -{ - int location; - - if ((data->location[0] & what) || (data->location[1] & what)) - return 0; /* already have one of these */ - - /* Find where we are (the code below zeros info_ptr to indicate that the - * chunks before the first IDAT have been read.) - */ - if (data->info_ptr == NULL) /* after IDAT */ - location = what | after_IDAT; - - else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE)) - location = what | before_IDAT; - - else - location = what | before_PLTE; - - if (data->location[0] == 0) - data->location[0] = location; - - else - data->location[1] = location; - - return 1; /* handled */ -} - -static int PNGCBAPI -read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk) -{ - struct user_chunk_data *my_user_chunk_data = - (struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr); - - if (my_user_chunk_data == NULL) - png_error(png_ptr, "lost user chunk pointer"); - - /* Return one of the following: - * return (-n); chunk had an error - * return (0); did not recognize - * return (n); success - * - * The unknown chunk structure contains the chunk data: - * png_byte name[5]; - * png_byte *data; - * png_size_t size; - * - * Note that libpng has already taken care of the CRC handling. - */ - - if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */ - chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */ - { - /* Found sTER chunk */ - if (chunk->size != 1) - return (-1); /* Error return */ - - if (chunk->data[0] != 0 && chunk->data[0] != 1) - return (-1); /* Invalid mode */ - - if (set_location(png_ptr, my_user_chunk_data, have_sTER)) - { - my_user_chunk_data->sTER_mode=chunk->data[0]; - return (1); - } - - else - return (0); /* duplicate sTER - give it to libpng */ - } - - if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */ - chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */ - return (0); /* Did not recognize */ - - /* Found ImageMagick vpAg chunk */ - - if (chunk->size != 9) - return (-1); /* Error return */ - - if (!set_location(png_ptr, my_user_chunk_data, have_vpAg)) - return (0); /* duplicate vpAg */ - - my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data); - my_user_chunk_data->vpAg_height = png_get_uint_31(png_ptr, chunk->data + 4); - my_user_chunk_data->vpAg_units = chunk->data[8]; - - return (1); -} - -#ifdef PNG_WRITE_SUPPORTED -static void -write_sTER_chunk(png_structp write_ptr) -{ - png_byte sTER[5] = {115, 84, 69, 82, '\0'}; - - if (verbose != 0) - fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode); - - png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1); -} - -static void -write_vpAg_chunk(png_structp write_ptr) -{ - png_byte vpAg[5] = {118, 112, 65, 103, '\0'}; - - png_byte vpag_chunk_data[9]; - - if (verbose != 0) - fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n", - (unsigned long)user_chunk_data.vpAg_width, - (unsigned long)user_chunk_data.vpAg_height, - user_chunk_data.vpAg_units); - - png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width); - png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height); - vpag_chunk_data[8] = user_chunk_data.vpAg_units; - png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9); -} - -static void -write_chunks(png_structp write_ptr, int location) -{ - int i; - - /* Notice that this preserves the original chunk order, however chunks - * intercepted by the callback will be written *after* chunks passed to - * libpng. This will actually reverse a pair of sTER chunks or a pair of - * vpAg chunks, resulting in an error later. This is not worth worrying - * about - the chunks should not be duplicated! - */ - for (i=0; i<2; ++i) - { - if (user_chunk_data.location[i] == (location | have_sTER)) - write_sTER_chunk(write_ptr); - - else if (user_chunk_data.location[i] == (location | have_vpAg)) - write_vpAg_chunk(write_ptr); - } -} -#endif /* PNG_WRITE_SUPPORTED */ -#else /* !PNG_READ_USER_CHUNKS_SUPPORTED */ -# define write_chunks(pp,loc) ((void)0) -#endif -/* END of code to demonstrate user chunk support */ - -/* START of code to check that libpng has the required text support; this only - * checks for the write support because if read support is missing the chunk - * will simply not be reported back to pngtest. - */ -#ifdef PNG_TEXT_SUPPORTED -static void -pngtest_check_text_support(png_const_structp png_ptr, png_textp text_ptr, - int num_text) -{ - while (num_text > 0) - { - switch (text_ptr[--num_text].compression) - { - case PNG_TEXT_COMPRESSION_NONE: - break; - - case PNG_TEXT_COMPRESSION_zTXt: -# ifndef PNG_WRITE_zTXt_SUPPORTED - ++unsupported_chunks; -# endif - break; - - case PNG_ITXT_COMPRESSION_NONE: - case PNG_ITXT_COMPRESSION_zTXt: -# ifndef PNG_WRITE_iTXt_SUPPORTED - ++unsupported_chunks; -# endif - break; - - default: - /* This is an error */ - png_error(png_ptr, "invalid text chunk compression field"); - break; - } - } -} -#endif -/* END of code to check that libpng has the required text support */ - -/* Test one file */ -static int -test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) -{ - static png_FILE_p fpin; - static png_FILE_p fpout; /* "static" prevents setjmp corruption */ - pngtest_error_parameters error_parameters; - png_structp read_ptr; - png_infop read_info_ptr, end_info_ptr; -#ifdef PNG_WRITE_SUPPORTED - png_structp write_ptr; - png_infop write_info_ptr; - png_infop write_end_info_ptr; - int interlace_preserved = 1; -#else - png_structp write_ptr = NULL; - png_infop write_info_ptr = NULL; - png_infop write_end_info_ptr = NULL; -#endif - png_bytep row_buf; - png_uint_32 y; - png_uint_32 width, height; - int num_pass = 1, pass; - int bit_depth, color_type; - - row_buf = NULL; - error_parameters.file_name = inname; - - if ((fpin = fopen(inname, "rb")) == NULL) - { - fprintf(STDERR, "Could not find input file %s\n", inname); - return (1); - } - - if ((fpout = fopen(outname, "wb")) == NULL) - { - fprintf(STDERR, "Could not open output file %s\n", outname); - FCLOSE(fpin); - return (1); - } - - pngtest_debug("Allocating read and write structures"); -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - read_ptr = - png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, - NULL, NULL, NULL, png_debug_malloc, png_debug_free); -#else - read_ptr = - png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); -#endif - png_set_error_fn(read_ptr, &error_parameters, pngtest_error, - pngtest_warning); - -#ifdef PNG_WRITE_SUPPORTED -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - write_ptr = - png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL, - NULL, NULL, NULL, png_debug_malloc, png_debug_free); -#else - write_ptr = - png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); -#endif - png_set_error_fn(write_ptr, &error_parameters, pngtest_error, - pngtest_warning); -#endif - pngtest_debug("Allocating read_info, write_info and end_info structures"); - read_info_ptr = png_create_info_struct(read_ptr); - end_info_ptr = png_create_info_struct(read_ptr); -#ifdef PNG_WRITE_SUPPORTED - write_info_ptr = png_create_info_struct(write_ptr); - write_end_info_ptr = png_create_info_struct(write_ptr); -#endif - -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED - init_callback_info(read_info_ptr); - png_set_read_user_chunk_fn(read_ptr, &user_chunk_data, - read_user_chunk_callback); -#endif - -#ifdef PNG_SETJMP_SUPPORTED - pngtest_debug("Setting jmpbuf for read struct"); - if (setjmp(png_jmpbuf(read_ptr))) - { - fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); - png_free(read_ptr, row_buf); - row_buf = NULL; - png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); -#ifdef PNG_WRITE_SUPPORTED - png_destroy_info_struct(write_ptr, &write_end_info_ptr); - png_destroy_write_struct(&write_ptr, &write_info_ptr); -#endif - FCLOSE(fpin); - FCLOSE(fpout); - return (1); - } - -#ifdef PNG_WRITE_SUPPORTED - pngtest_debug("Setting jmpbuf for write struct"); - - if (setjmp(png_jmpbuf(write_ptr))) - { - fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); - png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); - png_destroy_info_struct(write_ptr, &write_end_info_ptr); -#ifdef PNG_WRITE_SUPPORTED - png_destroy_write_struct(&write_ptr, &write_info_ptr); -#endif - FCLOSE(fpin); - FCLOSE(fpout); - return (1); - } -#endif -#endif - - if (strict != 0) - { - /* Treat png_benign_error() as errors on read */ - png_set_benign_errors(read_ptr, 0); - -#ifdef PNG_WRITE_SUPPORTED - /* Treat them as errors on write */ - png_set_benign_errors(write_ptr, 0); -#endif - - /* if strict is not set, then app warnings and errors are treated as - * warnings in release builds, but not in unstable builds; this can be - * changed with '--relaxed'. - */ - } - - else if (relaxed != 0) - { - /* Allow application (pngtest) errors and warnings to pass */ - png_set_benign_errors(read_ptr, 1); - -#ifdef PNG_WRITE_SUPPORTED - png_set_benign_errors(write_ptr, 1); -#endif - } - - pngtest_debug("Initializing input and output streams"); -#ifdef PNG_STDIO_SUPPORTED - png_init_io(read_ptr, fpin); -# ifdef PNG_WRITE_SUPPORTED - png_init_io(write_ptr, fpout); -# endif -#else - png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data); -# ifdef PNG_WRITE_SUPPORTED - png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data, -# ifdef PNG_WRITE_FLUSH_SUPPORTED - pngtest_flush); -# else - NULL); -# endif -# endif -#endif - - if (status_dots_requested == 1) - { -#ifdef PNG_WRITE_SUPPORTED - png_set_write_status_fn(write_ptr, write_row_callback); -#endif - png_set_read_status_fn(read_ptr, read_row_callback); - } - - else - { -#ifdef PNG_WRITE_SUPPORTED - png_set_write_status_fn(write_ptr, NULL); -#endif - png_set_read_status_fn(read_ptr, NULL); - } - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - { - int i; - - for (i = 0; i<256; i++) - filters_used[i] = 0; - - png_set_read_user_transform_fn(read_ptr, count_filters); - } -#endif -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED - zero_samples = 0; - png_set_write_user_transform_fn(write_ptr, count_zero_samples); -#endif - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - /* Preserve all the unknown chunks, if possible. If this is disabled then, - * even if the png_{get,set}_unknown_chunks stuff is enabled, we can't use - * libpng to *save* the unknown chunks on read (because we can't switch the - * save option on!) - * - * Notice that if SET_UNKNOWN_CHUNKS is *not* supported read will discard all - * unknown chunks and write will write them all. - */ -#ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED - png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS, - NULL, 0); -#endif -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, - NULL, 0); -#endif -#endif - - pngtest_debug("Reading info struct"); - png_read_info(read_ptr, read_info_ptr); - -#ifdef PNG_READ_USER_CHUNKS_SUPPORTED - /* This is a bit of a hack; there is no obvious way in the callback function - * to determine that the chunks before the first IDAT have been read, so - * remove the info_ptr (which is only used to determine position relative to - * PLTE) here to indicate that we are after the IDAT. - */ - user_chunk_data.info_ptr = NULL; -#endif - - pngtest_debug("Transferring info struct"); - { - int interlace_type, compression_type, filter_type; - - if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, - &color_type, &interlace_type, &compression_type, &filter_type)) - { - png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, - color_type, interlace_type, compression_type, filter_type); -#ifndef PNG_READ_INTERLACING_SUPPORTED - /* num_pass will not be set below, set it here if the image is - * interlaced: what happens is that write interlacing is *not* turned - * on an the partial interlaced rows are written directly. - */ - switch (interlace_type) - { - case PNG_INTERLACE_NONE: - num_pass = 1; - break; - - case PNG_INTERLACE_ADAM7: - num_pass = 7; - break; - - default: - png_error(read_ptr, "invalid interlace type"); - /*NOT REACHED*/ - } -#endif - } - } -#ifdef PNG_FIXED_POINT_SUPPORTED -#ifdef PNG_cHRM_SUPPORTED - { - png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x, - blue_y; - - if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, - &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y)) - { - png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, - red_y, green_x, green_y, blue_x, blue_y); - } - } -#endif -#ifdef PNG_gAMA_SUPPORTED - { - png_fixed_point gamma; - - if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) - png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); - } -#endif -#else /* Use floating point versions */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -#ifdef PNG_cHRM_SUPPORTED - { - double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, - blue_y; - - if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, - &red_y, &green_x, &green_y, &blue_x, &blue_y)) - { - png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, - red_y, green_x, green_y, blue_x, blue_y); - } - } -#endif -#ifdef PNG_gAMA_SUPPORTED - { - double gamma; - - if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) - png_set_gAMA(write_ptr, write_info_ptr, gamma); - } -#endif -#endif /* Floating point */ -#endif /* Fixed point */ -#ifdef PNG_iCCP_SUPPORTED - { - png_charp name; - png_bytep profile; - png_uint_32 proflen; - int compression_type; - - if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, - &profile, &proflen)) - { - png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, - profile, proflen); - } - } -#endif -#ifdef PNG_sRGB_SUPPORTED - { - int intent; - - if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) - png_set_sRGB(write_ptr, write_info_ptr, intent); - } -#endif - { - png_colorp palette; - int num_palette; - - if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) - png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); - } -#ifdef PNG_bKGD_SUPPORTED - { - png_color_16p background; - - if (png_get_bKGD(read_ptr, read_info_ptr, &background)) - { - png_set_bKGD(write_ptr, write_info_ptr, background); - } - } -#endif -#ifdef PNG_hIST_SUPPORTED - { - png_uint_16p hist; - - if (png_get_hIST(read_ptr, read_info_ptr, &hist)) - png_set_hIST(write_ptr, write_info_ptr, hist); - } -#endif -#ifdef PNG_oFFs_SUPPORTED - { - png_int_32 offset_x, offset_y; - int unit_type; - - if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y, - &unit_type)) - { - png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); - } - } -#endif -#ifdef PNG_pCAL_SUPPORTED - { - png_charp purpose, units; - png_charpp params; - png_int_32 X0, X1; - int type, nparams; - - if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, - &nparams, &units, ¶ms)) - { - png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, - nparams, units, params); - } - } -#endif -#ifdef PNG_pHYs_SUPPORTED - { - png_uint_32 res_x, res_y; - int unit_type; - - if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) - png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); - } -#endif -#ifdef PNG_sBIT_SUPPORTED - { - png_color_8p sig_bit; - - if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) - png_set_sBIT(write_ptr, write_info_ptr, sig_bit); - } -#endif -#ifdef PNG_sCAL_SUPPORTED -#if defined(PNG_FLOATING_POINT_SUPPORTED) && \ - defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) - { - int unit; - double scal_width, scal_height; - - if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, - &scal_height)) - { - png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); - } - } -#else -#ifdef PNG_FIXED_POINT_SUPPORTED - { - int unit; - png_charp scal_width, scal_height; - - if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, - &scal_height)) - { - png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, - scal_height); - } - } -#endif -#endif -#endif -#ifdef PNG_TEXT_SUPPORTED - { - png_textp text_ptr; - int num_text; - - if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) - { - pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); - - pngtest_check_text_support(read_ptr, text_ptr, num_text); - - if (verbose != 0) - { - int i; - - printf("\n"); - for (i=0; igray > sample_max) || - (color_type == PNG_COLOR_TYPE_RGB && - ((int)trans_color->red > sample_max || - (int)trans_color->green > sample_max || - (int)trans_color->blue > sample_max)))) - png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans, - trans_color); - } - } -#endif -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - { - png_unknown_chunkp unknowns; - int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr, - &unknowns); - - if (num_unknowns != 0) - { - png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, - num_unknowns); -#if PNG_LIBPNG_VER < 10600 - /* Copy the locations from the read_info_ptr. The automatically - * generated locations in write_end_info_ptr are wrong prior to 1.6.0 - * because they are reset from the write pointer (removed in 1.6.0). - */ - { - int i; - for (i = 0; i < num_unknowns; i++) - png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, - unknowns[i].location); - } -#endif - } - } -#endif - -#ifdef PNG_WRITE_SUPPORTED - pngtest_debug("Writing info struct"); - - /* Write the info in two steps so that if we write the 'unknown' chunks here - * they go to the correct place. - */ - png_write_info_before_PLTE(write_ptr, write_info_ptr); - - write_chunks(write_ptr, before_PLTE); /* before PLTE */ - - png_write_info(write_ptr, write_info_ptr); - - write_chunks(write_ptr, before_IDAT); /* after PLTE */ -#endif - -#ifdef SINGLE_ROWBUF_ALLOC - pngtest_debug("Allocating row buffer..."); - row_buf = (png_bytep)png_malloc(read_ptr, - png_get_rowbytes(read_ptr, read_info_ptr)); - - pngtest_debug1("\t0x%08lx", (unsigned long)row_buf); -#endif /* SINGLE_ROWBUF_ALLOC */ - pngtest_debug("Writing row data"); - -#ifdef PNG_READ_INTERLACING_SUPPORTED - num_pass = png_set_interlace_handling(read_ptr); - if (png_set_interlace_handling(write_ptr) != num_pass) - png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass"); -#endif - -#ifdef PNGTEST_TIMING - t_stop = (float)clock(); - t_misc += (t_stop - t_start); - t_start = t_stop; -#endif - for (pass = 0; pass < num_pass; pass++) - { - pngtest_debug1("Writing row data for pass %d", pass); - for (y = 0; y < height; y++) - { -#ifndef SINGLE_ROWBUF_ALLOC - pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y); - row_buf = (png_bytep)png_malloc(read_ptr, - png_get_rowbytes(read_ptr, read_info_ptr)); - - pngtest_debug2("\t0x%08lx (%u bytes)", (unsigned long)row_buf, - png_get_rowbytes(read_ptr, read_info_ptr)); - -#endif /* !SINGLE_ROWBUF_ALLOC */ - png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1); - -#ifdef PNG_WRITE_SUPPORTED -#ifdef PNGTEST_TIMING - t_stop = (float)clock(); - t_decode += (t_stop - t_start); - t_start = t_stop; -#endif - png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); -#ifdef PNGTEST_TIMING - t_stop = (float)clock(); - t_encode += (t_stop - t_start); - t_start = t_stop; -#endif -#endif /* PNG_WRITE_SUPPORTED */ - -#ifndef SINGLE_ROWBUF_ALLOC - pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y); - png_free(read_ptr, row_buf); - row_buf = NULL; -#endif /* !SINGLE_ROWBUF_ALLOC */ - } - } - -#ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED -# ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED - png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); -# endif -# ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); -# endif -#endif - - pngtest_debug("Reading and writing end_info data"); - - png_read_end(read_ptr, end_info_ptr); -#ifdef PNG_TEXT_SUPPORTED - { - png_textp text_ptr; - int num_text; - - if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) - { - pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); - - pngtest_check_text_support(read_ptr, text_ptr, num_text); - - if (verbose != 0) - { - int i; - - printf("\n"); - for (i=0; i 0) - { - /* We don't really expect to get here because of the setjmp handling - * above, but this is safe. - */ - fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)", - inname, error_count, warning_count); - - if (strict != 0) - return (1); - } - -# ifdef PNG_WRITE_SUPPORTED - /* If there we no write support nothing was written! */ - else if (unsupported_chunks > 0) - { - fprintf(STDERR, "\n %s: unsupported chunks (%d)%s", - inname, unsupported_chunks, strict ? ": IGNORED --strict!" : ""); - } -# endif - - else if (warning_count > 0) - { - fprintf(STDERR, "\n %s: %d libpng warnings found", - inname, warning_count); - - if (strict != 0) - return (1); - } - - pngtest_debug("Opening files for comparison"); - if ((fpin = fopen(inname, "rb")) == NULL) - { - fprintf(STDERR, "Could not find file %s\n", inname); - return (1); - } - - if ((fpout = fopen(outname, "rb")) == NULL) - { - fprintf(STDERR, "Could not find file %s\n", outname); - FCLOSE(fpin); - return (1); - } - -#ifdef PNG_WRITE_SUPPORTED /* else nothing was written */ - if (interlace_preserved != 0) /* else the files will be changed */ - { - for (;;) - { - static int wrote_question = 0; - png_size_t num_in, num_out; - char inbuf[256], outbuf[256]; - - num_in = fread(inbuf, 1, sizeof inbuf, fpin); - num_out = fread(outbuf, 1, sizeof outbuf, fpout); - - if (num_in != num_out) - { - fprintf(STDERR, "\nFiles %s and %s are of a different size\n", - inname, outname); - - if (wrote_question == 0 && unsupported_chunks == 0) - { - fprintf(STDERR, - " Was %s written with the same maximum IDAT chunk size (%d bytes),", - inname, PNG_ZBUF_SIZE); - fprintf(STDERR, - "\n filtering heuristic (libpng default), compression"); - fprintf(STDERR, - " level (zlib default),\n and zlib version (%s)?\n\n", - ZLIB_VERSION); - wrote_question = 1; - } - - FCLOSE(fpin); - FCLOSE(fpout); - - if (strict != 0 && unsupported_chunks == 0) - return (1); - - else - return (0); - } - - if (num_in == 0) - break; - - if (memcmp(inbuf, outbuf, num_in)) - { - fprintf(STDERR, "\nFiles %s and %s are different\n", inname, - outname); - - if (wrote_question == 0 && unsupported_chunks == 0) - { - fprintf(STDERR, - " Was %s written with the same maximum IDAT chunk size (%d bytes),", - inname, PNG_ZBUF_SIZE); - fprintf(STDERR, - "\n filtering heuristic (libpng default), compression"); - fprintf(STDERR, - " level (zlib default),\n and zlib version (%s)?\n\n", - ZLIB_VERSION); - wrote_question = 1; - } - - FCLOSE(fpin); - FCLOSE(fpout); - - /* NOTE: the unsupported_chunks escape is permitted here because - * unsupported text chunk compression will result in the compression - * mode being changed (to NONE) yet, in the test case, the result - * can be exactly the same size! - */ - if (strict != 0 && unsupported_chunks == 0) - return (1); - - else - return (0); - } - } - } -#endif /* PNG_WRITE_SUPPORTED */ - - FCLOSE(fpin); - FCLOSE(fpout); - - return (0); -} - -/* Input and output filenames */ -#ifdef RISCOS -static PNG_CONST char *inname = "pngtest/png"; -static PNG_CONST char *outname = "pngout/png"; -#else -static PNG_CONST char *inname = "pngtest.png"; -static PNG_CONST char *outname = "pngout.png"; -#endif - -int -main(int argc, char *argv[]) -{ - int multiple = 0; - int ierror = 0; - - fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); - fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION); - fprintf(STDERR, "%s", png_get_copyright(NULL)); - /* Show the version of libpng used in building the library */ - fprintf(STDERR, " library (%lu):%s", - (unsigned long)png_access_version_number(), - png_get_header_version(NULL)); - - /* Show the version of libpng used in building the application */ - fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER, - PNG_HEADER_VERSION_STRING); - - /* Do some consistency checking on the memory allocation settings, I'm - * not sure this matters, but it is nice to know, the first of these - * tests should be impossible because of the way the macros are set - * in pngconf.h - */ -#if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) - fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n"); -#endif - /* I think the following can happen. */ -#if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) - fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n"); -#endif - - if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) - { - fprintf(STDERR, - "Warning: versions are different between png.h and png.c\n"); - fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING); - fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver); - ++ierror; - } - - if (argc > 1) - { - if (strcmp(argv[1], "-m") == 0) - { - multiple = 1; - status_dots_requested = 0; - } - - else if (strcmp(argv[1], "-mv") == 0 || - strcmp(argv[1], "-vm") == 0 ) - { - multiple = 1; - verbose = 1; - status_dots_requested = 1; - } - - else if (strcmp(argv[1], "-v") == 0) - { - verbose = 1; - status_dots_requested = 1; - inname = argv[2]; - } - - else if (strcmp(argv[1], "--strict") == 0) - { - status_dots_requested = 0; - verbose = 1; - inname = argv[2]; - strict++; - relaxed = 0; - } - - else if (strcmp(argv[1], "--relaxed") == 0) - { - status_dots_requested = 0; - verbose = 1; - inname = argv[2]; - strict = 0; - relaxed++; - } - - else - { - inname = argv[1]; - status_dots_requested = 0; - } - } - - if (!multiple && argc == 3 + verbose) - outname = argv[2 + verbose]; - - if ((!multiple && argc > 3 + verbose) || (multiple && argc < 2)) - { - fprintf(STDERR, - "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", - argv[0], argv[0]); - fprintf(STDERR, - " reads/writes one PNG file (without -m) or multiple files (-m)\n"); - fprintf(STDERR, - " with -m %s is used as a temporary file\n", outname); - exit(1); - } - - if (multiple != 0) - { - int i; -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - int allocation_now = current_allocation; -#endif - for (i=2; isize, - (unsigned int)pinfo->pointer); - pinfo = pinfo->next; - } - } -#endif - } -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - fprintf(STDERR, " Current memory allocation: %10d bytes\n", - current_allocation); - fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", - maximum_allocation); - fprintf(STDERR, " Total memory allocation: %10d bytes\n", - total_allocation); - fprintf(STDERR, " Number of allocations: %10d\n", - num_allocations); -#endif - } - - else - { - int i; - for (i = 0; i<3; ++i) - { - int kerror; -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - int allocation_now = current_allocation; -#endif - if (i == 1) - status_dots_requested = 1; - - else if (verbose == 0) - status_dots_requested = 0; - - if (i == 0 || verbose == 1 || ierror != 0) - fprintf(STDERR, "\n Testing %s:", inname); - - kerror = test_one_file(inname, outname); - - if (kerror == 0) - { - if (verbose == 1 || i == 2) - { -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - int k; -#endif -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED - fprintf(STDERR, "\n PASS (%lu zero samples)\n", - (unsigned long)zero_samples); -#else - fprintf(STDERR, " PASS\n"); -#endif -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - for (k = 0; k<256; k++) - if (filters_used[k]) - fprintf(STDERR, " Filter %d was used %lu times\n", - k, (unsigned long)filters_used[k]); -#endif -#ifdef PNG_TIME_RFC1123_SUPPORTED - if (tIME_chunk_present != 0) - fprintf(STDERR, " tIME = %s\n", tIME_string); -#endif /* PNG_TIME_RFC1123_SUPPORTED */ - } - } - - else - { - if (verbose == 0 && i != 2) - fprintf(STDERR, "\n Testing %s:", inname); - - fprintf(STDERR, " FAIL\n"); - ierror += kerror; - } -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - if (allocation_now != current_allocation) - fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", - current_allocation - allocation_now); - - if (current_allocation != 0) - { - memory_infop pinfo = pinformation; - - fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", - current_allocation); - - while (pinfo != NULL) - { - fprintf(STDERR, " %lu bytes at %x\n", - (unsigned long)pinfo->size, (unsigned int)pinfo->pointer); - pinfo = pinfo->next; - } - } -#endif - } -#if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG - fprintf(STDERR, " Current memory allocation: %10d bytes\n", - current_allocation); - fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", - maximum_allocation); - fprintf(STDERR, " Total memory allocation: %10d bytes\n", - total_allocation); - fprintf(STDERR, " Number of allocations: %10d\n", - num_allocations); -#endif - } - -#ifdef PNGTEST_TIMING - t_stop = (float)clock(); - t_misc += (t_stop - t_start); - t_start = t_stop; - fprintf(STDERR, " CPU time used = %.3f seconds", - (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC); - fprintf(STDERR, " (decoding %.3f,\n", - t_decode/(float)CLOCKS_PER_SEC); - fprintf(STDERR, " encoding %.3f ,", - t_encode/(float)CLOCKS_PER_SEC); - fprintf(STDERR, " other %.3f seconds)\n\n", - t_misc/(float)CLOCKS_PER_SEC); -#endif - - if (ierror == 0) - fprintf(STDERR, " libpng passes test\n"); - - else - fprintf(STDERR, " libpng FAILS test\n"); - - return (int)(ierror != 0); -} -#else -int -main(void) -{ - fprintf(STDERR, - " test ignored because libpng was not built with read support\n"); - /* And skip this test */ - return PNG_LIBPNG_VER < 10600 ? 0 : 77; -} -#endif - -/* Generate a compiler error if there is an old png.h in the search path. */ -typedef png_libpng_version_1_6_12 Your_png_h_is_not_version_1_6_12; diff --git a/png/pngtest.png b/png/pngtest.png deleted file mode 100755 index cb3fef4..0000000 Binary files a/png/pngtest.png and /dev/null differ diff --git a/png/pngtrans.c b/png/pngtrans.c deleted file mode 100755 index 792e13a..0000000 --- a/png/pngtrans.c +++ /dev/null @@ -1,850 +0,0 @@ - -/* pngtrans.c - transforms the data in a row (used by both readers and writers) - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -#include "pngpriv.h" - -#if defined(PNG_READ_SUPPORTED) || defined(PNG_WRITE_SUPPORTED) - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* Turn on BGR-to-RGB mapping */ -void PNGAPI -png_set_bgr(png_structrp png_ptr) -{ - png_debug(1, "in png_set_bgr"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_BGR; -} -#endif - -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* Turn on 16 bit byte swapping */ -void PNGAPI -png_set_swap(png_structrp png_ptr) -{ - png_debug(1, "in png_set_swap"); - - if (png_ptr == NULL) - return; - - if (png_ptr->bit_depth == 16) - png_ptr->transformations |= PNG_SWAP_BYTES; -} -#endif - -#if defined(PNG_READ_PACK_SUPPORTED) || defined(PNG_WRITE_PACK_SUPPORTED) -/* Turn on pixel packing */ -void PNGAPI -png_set_packing(png_structrp png_ptr) -{ - png_debug(1, "in png_set_packing"); - - if (png_ptr == NULL) - return; - - if (png_ptr->bit_depth < 8) - { - png_ptr->transformations |= PNG_PACK; -# ifdef PNG_WRITE_SUPPORTED - png_ptr->usr_bit_depth = 8; -# endif - } -} -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -/* Turn on packed pixel swapping */ -void PNGAPI -png_set_packswap(png_structrp png_ptr) -{ - png_debug(1, "in png_set_packswap"); - - if (png_ptr == NULL) - return; - - if (png_ptr->bit_depth < 8) - png_ptr->transformations |= PNG_PACKSWAP; -} -#endif - -#if defined(PNG_READ_SHIFT_SUPPORTED) || defined(PNG_WRITE_SHIFT_SUPPORTED) -void PNGAPI -png_set_shift(png_structrp png_ptr, png_const_color_8p true_bits) -{ - png_debug(1, "in png_set_shift"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_SHIFT; - png_ptr->shift = *true_bits; -} -#endif - -#if defined(PNG_READ_INTERLACING_SUPPORTED) || \ - defined(PNG_WRITE_INTERLACING_SUPPORTED) -int PNGAPI -png_set_interlace_handling(png_structrp png_ptr) -{ - png_debug(1, "in png_set_interlace handling"); - - if (png_ptr && png_ptr->interlaced) - { - png_ptr->transformations |= PNG_INTERLACE; - return (7); - } - - return (1); -} -#endif - -#if defined(PNG_READ_FILLER_SUPPORTED) || defined(PNG_WRITE_FILLER_SUPPORTED) -/* Add a filler byte on read, or remove a filler or alpha byte on write. - * The filler type has changed in v0.95 to allow future 2-byte fillers - * for 48-bit input data, as well as to avoid problems with some compilers - * that don't like bytes as parameters. - */ -void PNGAPI -png_set_filler(png_structrp png_ptr, png_uint_32 filler, int filler_loc) -{ - png_debug(1, "in png_set_filler"); - - if (png_ptr == NULL) - return; - - /* In libpng 1.6 it is possible to determine whether this is a read or write - * operation and therefore to do more checking here for a valid call. - */ - if (png_ptr->mode & PNG_IS_READ_STRUCT) - { -# ifdef PNG_READ_FILLER_SUPPORTED - /* On read png_set_filler is always valid, regardless of the base PNG - * format, because other transformations can give a format where the - * filler code can execute (basically an 8 or 16-bit component RGB or G - * format.) - * - * NOTE: usr_channels is not used by the read code! (This has led to - * confusion in the past.) The filler is only used in the read code. - */ - png_ptr->filler = (png_uint_16)filler; -# else - png_app_error(png_ptr, "png_set_filler not supported on read"); - PNG_UNUSED(filler) /* not used in the write case */ - return; -# endif - } - - else /* write */ - { -# ifdef PNG_WRITE_FILLER_SUPPORTED - /* On write the usr_channels parameter must be set correctly at the - * start to record the number of channels in the app-supplied data. - */ - switch (png_ptr->color_type) - { - case PNG_COLOR_TYPE_RGB: - png_ptr->usr_channels = 4; - break; - - case PNG_COLOR_TYPE_GRAY: - if (png_ptr->bit_depth >= 8) - { - png_ptr->usr_channels = 2; - break; - } - - else - { - /* There simply isn't any code in libpng to strip out bits - * from bytes when the components are less than a byte in - * size! - */ - png_app_error(png_ptr, - "png_set_filler is invalid for low bit depth gray output"); - return; - } - - default: - png_app_error(png_ptr, - "png_set_filler: inappropriate color type"); - return; - } -# else - png_app_error(png_ptr, "png_set_filler not supported on write"); - return; -# endif - } - - /* Here on success - libpng supports the operation, set the transformation - * and the flag to say where the filler channel is. - */ - png_ptr->transformations |= PNG_FILLER; - - if (filler_loc == PNG_FILLER_AFTER) - png_ptr->flags |= PNG_FLAG_FILLER_AFTER; - - else - png_ptr->flags &= ~PNG_FLAG_FILLER_AFTER; -} - -/* Added to libpng-1.2.7 */ -void PNGAPI -png_set_add_alpha(png_structrp png_ptr, png_uint_32 filler, int filler_loc) -{ - png_debug(1, "in png_set_add_alpha"); - - if (png_ptr == NULL) - return; - - png_set_filler(png_ptr, filler, filler_loc); - /* The above may fail to do anything. */ - if (png_ptr->transformations & PNG_FILLER) - png_ptr->transformations |= PNG_ADD_ALPHA; -} - -#endif - -#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_SWAP_ALPHA_SUPPORTED) -void PNGAPI -png_set_swap_alpha(png_structrp png_ptr) -{ - png_debug(1, "in png_set_swap_alpha"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_SWAP_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_ALPHA_SUPPORTED) || \ - defined(PNG_WRITE_INVERT_ALPHA_SUPPORTED) -void PNGAPI -png_set_invert_alpha(png_structrp png_ptr) -{ - png_debug(1, "in png_set_invert_alpha"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_INVERT_ALPHA; -} -#endif - -#if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) -void PNGAPI -png_set_invert_mono(png_structrp png_ptr) -{ - png_debug(1, "in png_set_invert_mono"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_INVERT_MONO; -} - -/* Invert monochrome grayscale data */ -void /* PRIVATE */ -png_do_invert(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_invert"); - - /* This test removed from libpng version 1.0.13 and 1.2.0: - * if (row_info->bit_depth == 1 && - */ - if (row_info->color_type == PNG_COLOR_TYPE_GRAY) - { - png_bytep rp = row; - png_size_t i; - png_size_t istop = row_info->rowbytes; - - for (i = 0; i < istop; i++) - { - *rp = (png_byte)(~(*rp)); - rp++; - } - } - - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 8) - { - png_bytep rp = row; - png_size_t i; - png_size_t istop = row_info->rowbytes; - - for (i = 0; i < istop; i += 2) - { - *rp = (png_byte)(~(*rp)); - rp += 2; - } - } - -#ifdef PNG_16BIT_SUPPORTED - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA && - row_info->bit_depth == 16) - { - png_bytep rp = row; - png_size_t i; - png_size_t istop = row_info->rowbytes; - - for (i = 0; i < istop; i += 4) - { - *rp = (png_byte)(~(*rp)); - *(rp + 1) = (png_byte)(~(*(rp + 1))); - rp += 4; - } - } -#endif -} -#endif - -#ifdef PNG_16BIT_SUPPORTED -#if defined(PNG_READ_SWAP_SUPPORTED) || defined(PNG_WRITE_SWAP_SUPPORTED) -/* Swaps byte order on 16 bit depth images */ -void /* PRIVATE */ -png_do_swap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_swap"); - - if (row_info->bit_depth == 16) - { - png_bytep rp = row; - png_uint_32 i; - png_uint_32 istop= row_info->width * row_info->channels; - - for (i = 0; i < istop; i++, rp += 2) - { -#ifdef PNG_BUILTIN_BSWAP16_SUPPORTED - /* Feature added to libpng-1.6.11 for testing purposes, not - * enabled by default. - */ - *(png_uint_16*)rp = __builtin_bswap16(*(png_uint_16*)rp); -#else - png_byte t = *rp; - *rp = *(rp + 1); - *(rp + 1) = t; -#endif - } - } -} -#endif -#endif - -#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED) -static PNG_CONST png_byte onebppswaptable[256] = { - 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, - 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, - 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, - 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, - 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, - 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, - 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, - 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, - 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, - 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, - 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, - 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, - 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, - 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, - 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, - 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, - 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, - 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, - 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, - 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, - 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, - 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, - 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, - 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, - 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, - 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, - 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, - 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, - 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, - 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, - 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, - 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF -}; - -static PNG_CONST png_byte twobppswaptable[256] = { - 0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0, - 0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0, - 0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4, - 0x24, 0x64, 0xA4, 0xE4, 0x34, 0x74, 0xB4, 0xF4, - 0x08, 0x48, 0x88, 0xC8, 0x18, 0x58, 0x98, 0xD8, - 0x28, 0x68, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8, - 0x0C, 0x4C, 0x8C, 0xCC, 0x1C, 0x5C, 0x9C, 0xDC, - 0x2C, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC, - 0x01, 0x41, 0x81, 0xC1, 0x11, 0x51, 0x91, 0xD1, - 0x21, 0x61, 0xA1, 0xE1, 0x31, 0x71, 0xB1, 0xF1, - 0x05, 0x45, 0x85, 0xC5, 0x15, 0x55, 0x95, 0xD5, - 0x25, 0x65, 0xA5, 0xE5, 0x35, 0x75, 0xB5, 0xF5, - 0x09, 0x49, 0x89, 0xC9, 0x19, 0x59, 0x99, 0xD9, - 0x29, 0x69, 0xA9, 0xE9, 0x39, 0x79, 0xB9, 0xF9, - 0x0D, 0x4D, 0x8D, 0xCD, 0x1D, 0x5D, 0x9D, 0xDD, - 0x2D, 0x6D, 0xAD, 0xED, 0x3D, 0x7D, 0xBD, 0xFD, - 0x02, 0x42, 0x82, 0xC2, 0x12, 0x52, 0x92, 0xD2, - 0x22, 0x62, 0xA2, 0xE2, 0x32, 0x72, 0xB2, 0xF2, - 0x06, 0x46, 0x86, 0xC6, 0x16, 0x56, 0x96, 0xD6, - 0x26, 0x66, 0xA6, 0xE6, 0x36, 0x76, 0xB6, 0xF6, - 0x0A, 0x4A, 0x8A, 0xCA, 0x1A, 0x5A, 0x9A, 0xDA, - 0x2A, 0x6A, 0xAA, 0xEA, 0x3A, 0x7A, 0xBA, 0xFA, - 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xDE, - 0x2E, 0x6E, 0xAE, 0xEE, 0x3E, 0x7E, 0xBE, 0xFE, - 0x03, 0x43, 0x83, 0xC3, 0x13, 0x53, 0x93, 0xD3, - 0x23, 0x63, 0xA3, 0xE3, 0x33, 0x73, 0xB3, 0xF3, - 0x07, 0x47, 0x87, 0xC7, 0x17, 0x57, 0x97, 0xD7, - 0x27, 0x67, 0xA7, 0xE7, 0x37, 0x77, 0xB7, 0xF7, - 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x5B, 0x9B, 0xDB, - 0x2B, 0x6B, 0xAB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB, - 0x0F, 0x4F, 0x8F, 0xCF, 0x1F, 0x5F, 0x9F, 0xDF, - 0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF -}; - -static PNG_CONST png_byte fourbppswaptable[256] = { - 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, - 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0, - 0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71, - 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1, - 0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72, - 0x82, 0x92, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0xF2, - 0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73, - 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0xD3, 0xE3, 0xF3, - 0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74, - 0x84, 0x94, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4, - 0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75, - 0x85, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xE5, 0xF5, - 0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76, - 0x86, 0x96, 0xA6, 0xB6, 0xC6, 0xD6, 0xE6, 0xF6, - 0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77, - 0x87, 0x97, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7, - 0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78, - 0x88, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8, - 0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79, - 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9, - 0x0A, 0x1A, 0x2A, 0x3A, 0x4A, 0x5A, 0x6A, 0x7A, - 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA, - 0x0B, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, - 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xDB, 0xEB, 0xFB, - 0x0C, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, - 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xDC, 0xEC, 0xFC, - 0x0D, 0x1D, 0x2D, 0x3D, 0x4D, 0x5D, 0x6D, 0x7D, - 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD, - 0x0E, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E, - 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE, - 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F, - 0x8F, 0x9F, 0xAF, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF -}; - -/* Swaps pixel packing order within bytes */ -void /* PRIVATE */ -png_do_packswap(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_packswap"); - - if (row_info->bit_depth < 8) - { - png_bytep rp; - png_const_bytep end, table; - - end = row + row_info->rowbytes; - - if (row_info->bit_depth == 1) - table = onebppswaptable; - - else if (row_info->bit_depth == 2) - table = twobppswaptable; - - else if (row_info->bit_depth == 4) - table = fourbppswaptable; - - else - return; - - for (rp = row; rp < end; rp++) - *rp = table[*rp]; - } -} -#endif /* PNG_READ_PACKSWAP_SUPPORTED or PNG_WRITE_PACKSWAP_SUPPORTED */ - -#if defined(PNG_WRITE_FILLER_SUPPORTED) || \ - defined(PNG_READ_STRIP_ALPHA_SUPPORTED) -/* Remove a channel - this used to be 'png_do_strip_filler' but it used a - * somewhat weird combination of flags to determine what to do. All the calls - * to png_do_strip_filler are changed in 1.5.2 to call this instead with the - * correct arguments. - * - * The routine isn't general - the channel must be the channel at the start or - * end (not in the middle) of each pixel. - */ -void /* PRIVATE */ -png_do_strip_channel(png_row_infop row_info, png_bytep row, int at_start) -{ - png_bytep sp = row; /* source pointer */ - png_bytep dp = row; /* destination pointer */ - png_bytep ep = row + row_info->rowbytes; /* One beyond end of row */ - - /* At the start sp will point to the first byte to copy and dp to where - * it is copied to. ep always points just beyond the end of the row, so - * the loop simply copies (channels-1) channels until sp reaches ep. - * - * at_start: 0 -- convert AG, XG, ARGB, XRGB, AAGG, XXGG, etc. - * nonzero -- convert GA, GX, RGBA, RGBX, GGAA, RRGGBBXX, etc. - */ - - /* GA, GX, XG cases */ - if (row_info->channels == 2) - { - if (row_info->bit_depth == 8) - { - if (at_start != 0) /* Skip initial filler */ - ++sp; - else /* Skip initial channel and, for sp, the filler */ - sp += 2, ++dp; - - /* For a 1 pixel wide image there is nothing to do */ - while (sp < ep) - *dp++ = *sp, sp += 2; - - row_info->pixel_depth = 8; - } - - else if (row_info->bit_depth == 16) - { - if (at_start != 0) /* Skip initial filler */ - sp += 2; - else /* Skip initial channel and, for sp, the filler */ - sp += 4, dp += 2; - - while (sp < ep) - *dp++ = *sp++, *dp++ = *sp, sp += 3; - - row_info->pixel_depth = 16; - } - - else - return; /* bad bit depth */ - - row_info->channels = 1; - - /* Finally fix the color type if it records an alpha channel */ - if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - row_info->color_type = PNG_COLOR_TYPE_GRAY; - } - - /* RGBA, RGBX, XRGB cases */ - else if (row_info->channels == 4) - { - if (row_info->bit_depth == 8) - { - if (at_start != 0) /* Skip initial filler */ - ++sp; - else /* Skip initial channels and, for sp, the filler */ - sp += 4, dp += 3; - - /* Note that the loop adds 3 to dp and 4 to sp each time. */ - while (sp < ep) - *dp++ = *sp++, *dp++ = *sp++, *dp++ = *sp, sp += 2; - - row_info->pixel_depth = 24; - } - - else if (row_info->bit_depth == 16) - { - if (at_start != 0) /* Skip initial filler */ - sp += 2; - else /* Skip initial channels and, for sp, the filler */ - sp += 8, dp += 6; - - while (sp < ep) - { - /* Copy 6 bytes, skip 2 */ - *dp++ = *sp++, *dp++ = *sp++; - *dp++ = *sp++, *dp++ = *sp++; - *dp++ = *sp++, *dp++ = *sp, sp += 3; - } - - row_info->pixel_depth = 48; - } - - else - return; /* bad bit depth */ - - row_info->channels = 3; - - /* Finally fix the color type if it records an alpha channel */ - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - row_info->color_type = PNG_COLOR_TYPE_RGB; - } - - else - return; /* The filler channel has gone already */ - - /* Fix the rowbytes value. */ - row_info->rowbytes = dp-row; -} -#endif - -#if defined(PNG_READ_BGR_SUPPORTED) || defined(PNG_WRITE_BGR_SUPPORTED) -/* Swaps red and blue bytes within a pixel */ -void /* PRIVATE */ -png_do_bgr(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_bgr"); - - if ((row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 3) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 4) - { - png_byte save = *rp; - *rp = *(rp + 2); - *(rp + 2) = save; - } - } - } - -#ifdef PNG_16BIT_SUPPORTED - else if (row_info->bit_depth == 16) - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 6) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_bytep rp; - png_uint_32 i; - - for (i = 0, rp = row; i < row_width; i++, rp += 8) - { - png_byte save = *rp; - *rp = *(rp + 4); - *(rp + 4) = save; - save = *(rp + 1); - *(rp + 1) = *(rp + 5); - *(rp + 5) = save; - } - } - } -#endif - } -} -#endif /* PNG_READ_BGR_SUPPORTED or PNG_WRITE_BGR_SUPPORTED */ - -#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \ - defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED) -/* Added at libpng-1.5.10 */ -void /* PRIVATE */ -png_do_check_palette_indexes(png_structrp png_ptr, png_row_infop row_info) -{ - if (png_ptr->num_palette < (1 << row_info->bit_depth) && - png_ptr->num_palette > 0) /* num_palette can be 0 in MNG files */ - { - /* Calculations moved outside switch in an attempt to stop different - * compiler warnings. 'padding' is in *bits* within the last byte, it is - * an 'int' because pixel_depth becomes an 'int' in the expression below, - * and this calculation is used because it avoids warnings that other - * forms produced on either GCC or MSVC. - */ - int padding = (-row_info->pixel_depth * row_info->width) & 7; - png_bytep rp = png_ptr->row_buf + row_info->rowbytes; - - switch (row_info->bit_depth) - { - case 1: - { - /* in this case, all bytes must be 0 so we don't need - * to unpack the pixels except for the rightmost one. - */ - for (; rp > png_ptr->row_buf; rp--) - { - if (*rp >> padding != 0) - png_ptr->num_palette_max = 1; - padding = 0; - } - - break; - } - - case 2: - { - for (; rp > png_ptr->row_buf; rp--) - { - int i = ((*rp >> padding) & 0x03); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - i = (((*rp >> padding) >> 2) & 0x03); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - i = (((*rp >> padding) >> 4) & 0x03); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - i = (((*rp >> padding) >> 6) & 0x03); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - padding = 0; - } - - break; - } - - case 4: - { - for (; rp > png_ptr->row_buf; rp--) - { - int i = ((*rp >> padding) & 0x0f); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - i = (((*rp >> padding) >> 4) & 0x0f); - - if (i > png_ptr->num_palette_max) - png_ptr->num_palette_max = i; - - padding = 0; - } - - break; - } - - case 8: - { - for (; rp > png_ptr->row_buf; rp--) - { - if (*rp > png_ptr->num_palette_max) - png_ptr->num_palette_max = (int) *rp; - } - - break; - } - - default: - break; - } - } -} -#endif /* PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED */ - -#if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \ - defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED) -#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED -void PNGAPI -png_set_user_transform_info(png_structrp png_ptr, png_voidp - user_transform_ptr, int user_transform_depth, int user_transform_channels) -{ - png_debug(1, "in png_set_user_transform_info"); - - if (png_ptr == NULL) - return; - -#ifdef PNG_READ_USER_TRANSFORM_SUPPORTED - if ((png_ptr->mode & PNG_IS_READ_STRUCT) != 0 && - (png_ptr->flags & PNG_FLAG_ROW_INIT) != 0) - { - png_app_error(png_ptr, - "info change after png_start_read_image or png_read_update_info"); - return; - } -#endif - - png_ptr->user_transform_ptr = user_transform_ptr; - png_ptr->user_transform_depth = (png_byte)user_transform_depth; - png_ptr->user_transform_channels = (png_byte)user_transform_channels; -} -#endif - -/* This function returns a pointer to the user_transform_ptr associated with - * the user transform functions. The application should free any memory - * associated with this pointer before png_write_destroy and png_read_destroy - * are called. - */ -#ifdef PNG_USER_TRANSFORM_PTR_SUPPORTED -png_voidp PNGAPI -png_get_user_transform_ptr(png_const_structrp png_ptr) -{ - if (png_ptr == NULL) - return (NULL); - - return png_ptr->user_transform_ptr; -} -#endif - -#ifdef PNG_USER_TRANSFORM_INFO_SUPPORTED -png_uint_32 PNGAPI -png_get_current_row_number(png_const_structrp png_ptr) -{ - /* See the comments in png.h - this is the sub-image row when reading and - * interlaced image. - */ - if (png_ptr != NULL) - return png_ptr->row_number; - - return PNG_UINT_32_MAX; /* help the app not to fail silently */ -} - -png_byte PNGAPI -png_get_current_pass_number(png_const_structrp png_ptr) -{ - if (png_ptr != NULL) - return png_ptr->pass; - return 8; /* invalid */ -} -#endif /* PNG_USER_TRANSFORM_INFO_SUPPORTED */ -#endif /* PNG_READ_USER_TRANSFORM_SUPPORTED || - PNG_WRITE_USER_TRANSFORM_SUPPORTED */ -#endif /* PNG_READ_SUPPORTED || PNG_WRITE_SUPPORTED */ diff --git a/png/pngwio.c b/png/pngwio.c deleted file mode 100755 index 1b525f9..0000000 --- a/png/pngwio.c +++ /dev/null @@ -1,168 +0,0 @@ - -/* pngwio.c - functions for data output - * - * Last changed in libpng 1.6.9 [February 6, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - * - * This file provides a location for all output. Users who need - * special handling are expected to write functions that have the same - * arguments as these and perform similar functions, but that possibly - * use different output methods. Note that you shouldn't change these - * functions, but rather write replacement functions and then change - * them at run time with png_set_write_fn(...). - */ - -#include "pngpriv.h" - -#ifdef PNG_WRITE_SUPPORTED - -/* Write the data to whatever output you are using. The default routine - * writes to a file pointer. Note that this routine sometimes gets called - * with very small lengths, so you should implement some kind of simple - * buffering if you are using unbuffered writes. This should never be asked - * to write more than 64K on a 16 bit machine. - */ - -void /* PRIVATE */ -png_write_data(png_structrp png_ptr, png_const_bytep data, png_size_t length) -{ - /* NOTE: write_data_fn must not change the buffer! */ - if (png_ptr->write_data_fn != NULL ) - (*(png_ptr->write_data_fn))(png_ptr, png_constcast(png_bytep,data), - length); - - else - png_error(png_ptr, "Call to NULL write function"); -} - -#ifdef PNG_STDIO_SUPPORTED -/* This is the function that does the actual writing of data. If you are - * not writing to a standard C stream, you should create a replacement - * write_data function and use it at run time with png_set_write_fn(), rather - * than changing the library. - */ -void PNGCBAPI -png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) -{ - png_size_t check; - - if (png_ptr == NULL) - return; - - check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr)); - - if (check != length) - png_error(png_ptr, "Write Error"); -} -#endif - -/* This function is called to output any data pending writing (normally - * to disk). After png_flush is called, there should be no data pending - * writing in any buffers. - */ -#ifdef PNG_WRITE_FLUSH_SUPPORTED -void /* PRIVATE */ -png_flush(png_structrp png_ptr) -{ - if (png_ptr->output_flush_fn != NULL) - (*(png_ptr->output_flush_fn))(png_ptr); -} - -# ifdef PNG_STDIO_SUPPORTED -void PNGCBAPI -png_default_flush(png_structp png_ptr) -{ - png_FILE_p io_ptr; - - if (png_ptr == NULL) - return; - - io_ptr = png_voidcast(png_FILE_p, (png_ptr->io_ptr)); - fflush(io_ptr); -} -# endif -#endif - -/* This function allows the application to supply new output functions for - * libpng if standard C streams aren't being used. - * - * This function takes as its arguments: - * png_ptr - pointer to a png output data structure - * io_ptr - pointer to user supplied structure containing info about - * the output functions. May be NULL. - * write_data_fn - pointer to a new output function that takes as its - * arguments a pointer to a png_struct, a pointer to - * data to be written, and a 32-bit unsigned int that is - * the number of bytes to be written. The new write - * function should call png_error(png_ptr, "Error msg") - * to exit and output any fatal error messages. May be - * NULL, in which case libpng's default function will - * be used. - * flush_data_fn - pointer to a new flush function that takes as its - * arguments a pointer to a png_struct. After a call to - * the flush function, there should be no data in any buffers - * or pending transmission. If the output method doesn't do - * any buffering of output, a function prototype must still be - * supplied although it doesn't have to do anything. If - * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile - * time, output_flush_fn will be ignored, although it must be - * supplied for compatibility. May be NULL, in which case - * libpng's default function will be used, if - * PNG_WRITE_FLUSH_SUPPORTED is defined. This is not - * a good idea if io_ptr does not point to a standard - * *FILE structure. - */ -void PNGAPI -png_set_write_fn(png_structrp png_ptr, png_voidp io_ptr, - png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->io_ptr = io_ptr; - -#ifdef PNG_STDIO_SUPPORTED - if (write_data_fn != NULL) - png_ptr->write_data_fn = write_data_fn; - - else - png_ptr->write_data_fn = png_default_write_data; -#else - png_ptr->write_data_fn = write_data_fn; -#endif - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -# ifdef PNG_STDIO_SUPPORTED - - if (output_flush_fn != NULL) - png_ptr->output_flush_fn = output_flush_fn; - - else - png_ptr->output_flush_fn = png_default_flush; - -# else - png_ptr->output_flush_fn = output_flush_fn; -# endif -#else - PNG_UNUSED(output_flush_fn) -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - -#ifdef PNG_READ_SUPPORTED - /* It is an error to read while writing a png file */ - if (png_ptr->read_data_fn != NULL) - { - png_ptr->read_data_fn = NULL; - - png_warning(png_ptr, - "Can't set both read_data_fn and write_data_fn in the" - " same structure"); - } -#endif -} -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwrite.c b/png/pngwrite.c deleted file mode 100755 index 7087d08..0000000 --- a/png/pngwrite.c +++ /dev/null @@ -1,2437 +0,0 @@ - -/* pngwrite.c - general routines to write a PNG file - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -#include "pngpriv.h" -#if defined(PNG_SIMPLIFIED_WRITE_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) -# include -#endif - -#ifdef PNG_WRITE_SUPPORTED - -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED -/* Write out all the unknown chunks for the current given location */ -static void -write_unknown_chunks(png_structrp png_ptr, png_const_inforp info_ptr, - unsigned int where) -{ - if (info_ptr->unknown_chunks_num) - { - png_const_unknown_chunkp up; - - png_debug(5, "writing extra chunks"); - - for (up = info_ptr->unknown_chunks; - up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num; - ++up) - if (up->location & where) - { - /* If per-chunk unknown chunk handling is enabled use it, otherwise - * just write the chunks the application has set. - */ -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - int keep = png_handle_as_unknown(png_ptr, up->name); - - /* NOTE: this code is radically different from the read side in the - * matter of handling an ancillary unknown chunk. In the read side - * the default behavior is to discard it, in the code below the default - * behavior is to write it. Critical chunks are, however, only - * written if explicitly listed or if the default is set to write all - * unknown chunks. - * - * The default handling is also slightly weird - it is not possible to - * stop the writing of all unsafe-to-copy chunks! - * - * TODO: REVIEW: this would seem to be a bug. - */ - if (keep != PNG_HANDLE_CHUNK_NEVER && - ((up->name[3] & 0x20) /* safe-to-copy overrides everything */ || - keep == PNG_HANDLE_CHUNK_ALWAYS || - (keep == PNG_HANDLE_CHUNK_AS_DEFAULT && - png_ptr->unknown_default == PNG_HANDLE_CHUNK_ALWAYS))) -#endif - { - /* TODO: review, what is wrong with a zero length unknown chunk? */ - if (up->size == 0) - png_warning(png_ptr, "Writing zero-length unknown chunk"); - - png_write_chunk(png_ptr, up->name, up->data, up->size); - } - } - } -} -#endif /* PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED */ - -/* Writes all the PNG information. This is the suggested way to use the - * library. If you have a new chunk to add, make a function to write it, - * and put it in the correct location here. If you want the chunk written - * after the image data, put it in png_write_end(). I strongly encourage - * you to supply a PNG_INFO_ flag, and check info_ptr->valid before writing - * the chunk, as that will keep the code from breaking if you want to just - * write a plain PNG file. If you have long comments, I suggest writing - * them in png_write_end(), and compressing them. - */ -void PNGAPI -png_write_info_before_PLTE(png_structrp png_ptr, png_const_inforp info_ptr) -{ - png_debug(1, "in png_write_info_before_PLTE"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - { - /* Write PNG signature */ - png_write_sig(png_ptr); - -#ifdef PNG_MNG_FEATURES_SUPPORTED - if ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) && \ - (png_ptr->mng_features_permitted)) - { - png_warning(png_ptr, "MNG features are not allowed in a PNG datastream"); - png_ptr->mng_features_permitted = 0; - } -#endif - - /* Write IHDR information. */ - png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height, - info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type, - info_ptr->filter_type, -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - info_ptr->interlace_type -#else - 0 -#endif - ); - - /* The rest of these check to see if the valid field has the appropriate - * flag set, and if it does, writes the chunk. - * - * 1.6.0: COLORSPACE support controls the writing of these chunks too, and - * the chunks will be written if the WRITE routine is there and information - * is available in the COLORSPACE. (See png_colorspace_sync_info in png.c - * for where the valid flags get set.) - * - * Under certain circumstances the colorspace can be invalidated without - * syncing the info_struct 'valid' flags; this happens if libpng detects and - * error and calls png_error while the color space is being set, yet the - * application continues writing the PNG. So check the 'invalid' flag here - * too. - */ -#ifdef PNG_GAMMA_SUPPORTED -# ifdef PNG_WRITE_gAMA_SUPPORTED - if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && - (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_gAMA) && - (info_ptr->valid & PNG_INFO_gAMA)) - png_write_gAMA_fixed(png_ptr, info_ptr->colorspace.gamma); -# endif -#endif - -#ifdef PNG_COLORSPACE_SUPPORTED - /* Write only one of sRGB or an ICC profile. If a profile was supplied - * and it matches one of the known sRGB ones issue a warning. - */ -# ifdef PNG_WRITE_iCCP_SUPPORTED - if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && - (info_ptr->valid & PNG_INFO_iCCP)) - { -# ifdef PNG_WRITE_sRGB_SUPPORTED - if (info_ptr->valid & PNG_INFO_sRGB) - png_app_warning(png_ptr, - "profile matches sRGB but writing iCCP instead"); -# endif - - png_write_iCCP(png_ptr, info_ptr->iccp_name, - info_ptr->iccp_profile); - } -# ifdef PNG_WRITE_sRGB_SUPPORTED - else -# endif -# endif - -# ifdef PNG_WRITE_sRGB_SUPPORTED - if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && - (info_ptr->valid & PNG_INFO_sRGB)) - png_write_sRGB(png_ptr, info_ptr->colorspace.rendering_intent); -# endif /* WRITE_sRGB */ -#endif /* COLORSPACE */ - -#ifdef PNG_WRITE_sBIT_SUPPORTED - if (info_ptr->valid & PNG_INFO_sBIT) - png_write_sBIT(png_ptr, &(info_ptr->sig_bit), info_ptr->color_type); -#endif - -#ifdef PNG_COLORSPACE_SUPPORTED -# ifdef PNG_WRITE_cHRM_SUPPORTED - if (!(info_ptr->colorspace.flags & PNG_COLORSPACE_INVALID) && - (info_ptr->colorspace.flags & PNG_COLORSPACE_FROM_cHRM) && - (info_ptr->valid & PNG_INFO_cHRM)) - png_write_cHRM_fixed(png_ptr, &info_ptr->colorspace.end_points_xy); -# endif -#endif - -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_IHDR); -#endif - - png_ptr->mode |= PNG_WROTE_INFO_BEFORE_PLTE; - } -} - -void PNGAPI -png_write_info(png_structrp png_ptr, png_const_inforp info_ptr) -{ -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) - int i; -#endif - - png_debug(1, "in png_write_info"); - - if (png_ptr == NULL || info_ptr == NULL) - return; - - png_write_info_before_PLTE(png_ptr, info_ptr); - - if (info_ptr->valid & PNG_INFO_PLTE) - png_write_PLTE(png_ptr, info_ptr->palette, - (png_uint_32)info_ptr->num_palette); - - else if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - png_error(png_ptr, "Valid palette required for paletted images"); - -#ifdef PNG_WRITE_tRNS_SUPPORTED - if (info_ptr->valid & PNG_INFO_tRNS) - { -#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED - /* Invert the alpha channel (in tRNS) */ - if ((png_ptr->transformations & PNG_INVERT_ALPHA) && - info_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - int j; - for (j = 0; j<(int)info_ptr->num_trans; j++) - info_ptr->trans_alpha[j] = - (png_byte)(255 - info_ptr->trans_alpha[j]); - } -#endif - png_write_tRNS(png_ptr, info_ptr->trans_alpha, &(info_ptr->trans_color), - info_ptr->num_trans, info_ptr->color_type); - } -#endif -#ifdef PNG_WRITE_bKGD_SUPPORTED - if (info_ptr->valid & PNG_INFO_bKGD) - png_write_bKGD(png_ptr, &(info_ptr->background), info_ptr->color_type); -#endif - -#ifdef PNG_WRITE_hIST_SUPPORTED - if (info_ptr->valid & PNG_INFO_hIST) - png_write_hIST(png_ptr, info_ptr->hist, info_ptr->num_palette); -#endif - -#ifdef PNG_WRITE_oFFs_SUPPORTED - if (info_ptr->valid & PNG_INFO_oFFs) - png_write_oFFs(png_ptr, info_ptr->x_offset, info_ptr->y_offset, - info_ptr->offset_unit_type); -#endif - -#ifdef PNG_WRITE_pCAL_SUPPORTED - if (info_ptr->valid & PNG_INFO_pCAL) - png_write_pCAL(png_ptr, info_ptr->pcal_purpose, info_ptr->pcal_X0, - info_ptr->pcal_X1, info_ptr->pcal_type, info_ptr->pcal_nparams, - info_ptr->pcal_units, info_ptr->pcal_params); -#endif - -#ifdef PNG_WRITE_sCAL_SUPPORTED - if (info_ptr->valid & PNG_INFO_sCAL) - png_write_sCAL_s(png_ptr, (int)info_ptr->scal_unit, - info_ptr->scal_s_width, info_ptr->scal_s_height); -#endif /* sCAL */ - -#ifdef PNG_WRITE_pHYs_SUPPORTED - if (info_ptr->valid & PNG_INFO_pHYs) - png_write_pHYs(png_ptr, info_ptr->x_pixels_per_unit, - info_ptr->y_pixels_per_unit, info_ptr->phys_unit_type); -#endif /* pHYs */ - -#ifdef PNG_WRITE_tIME_SUPPORTED - if (info_ptr->valid & PNG_INFO_tIME) - { - png_write_tIME(png_ptr, &(info_ptr->mod_time)); - png_ptr->mode |= PNG_WROTE_tIME; - } -#endif /* tIME */ - -#ifdef PNG_WRITE_sPLT_SUPPORTED - if (info_ptr->valid & PNG_INFO_sPLT) - for (i = 0; i < (int)info_ptr->splt_palettes_num; i++) - png_write_sPLT(png_ptr, info_ptr->splt_palettes + i); -#endif /* sPLT */ - -#ifdef PNG_WRITE_TEXT_SUPPORTED - /* Check to see if we need to write text chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing header text chunk %d, type %d", i, - info_ptr->text[i].compression); - /* An internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#ifdef PNG_WRITE_iTXt_SUPPORTED - /* Write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - - /* If we want a compressed text chunk */ - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_zTXt) - { -#ifdef PNG_WRITE_zTXt_SUPPORTED - /* Write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#ifdef PNG_WRITE_tEXt_SUPPORTED - /* Write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, - 0); - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; -#else - /* Can't get here */ - png_warning(png_ptr, "Unable to write uncompressed text"); -#endif - } - } -#endif /* tEXt */ - -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - write_unknown_chunks(png_ptr, info_ptr, PNG_HAVE_PLTE); -#endif -} - -/* Writes the end of the PNG file. If you don't want to write comments or - * time information, you can pass NULL for info. If you already wrote these - * in png_write_info(), do not write them again here. If you have long - * comments, I suggest writing them here, and compressing them. - */ -void PNGAPI -png_write_end(png_structrp png_ptr, png_inforp info_ptr) -{ - png_debug(1, "in png_write_end"); - - if (png_ptr == NULL) - return; - - if (!(png_ptr->mode & PNG_HAVE_IDAT)) - png_error(png_ptr, "No IDATs written into file"); - -#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED - if (png_ptr->num_palette_max > png_ptr->num_palette) - png_benign_error(png_ptr, "Wrote palette index exceeding num_palette"); -#endif - - /* See if user wants us to write information chunks */ - if (info_ptr != NULL) - { -#ifdef PNG_WRITE_TEXT_SUPPORTED - int i; /* local index variable */ -#endif -#ifdef PNG_WRITE_tIME_SUPPORTED - /* Check to see if user has supplied a time chunk */ - if ((info_ptr->valid & PNG_INFO_tIME) && - !(png_ptr->mode & PNG_WROTE_tIME)) - png_write_tIME(png_ptr, &(info_ptr->mod_time)); - -#endif -#ifdef PNG_WRITE_TEXT_SUPPORTED - /* Loop through comment chunks */ - for (i = 0; i < info_ptr->num_text; i++) - { - png_debug2(2, "Writing trailer text chunk %d, type %d", i, - info_ptr->text[i].compression); - /* An internationalized chunk? */ - if (info_ptr->text[i].compression > 0) - { -#ifdef PNG_WRITE_iTXt_SUPPORTED - /* Write international chunk */ - png_write_iTXt(png_ptr, - info_ptr->text[i].compression, - info_ptr->text[i].key, - info_ptr->text[i].lang, - info_ptr->text[i].lang_key, - info_ptr->text[i].text); -#else - png_warning(png_ptr, "Unable to write international text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - - else if (info_ptr->text[i].compression >= PNG_TEXT_COMPRESSION_zTXt) - { -#ifdef PNG_WRITE_zTXt_SUPPORTED - /* Write compressed chunk */ - png_write_zTXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0, - info_ptr->text[i].compression); -#else - png_warning(png_ptr, "Unable to write compressed text"); -#endif - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_zTXt_WR; - } - - else if (info_ptr->text[i].compression == PNG_TEXT_COMPRESSION_NONE) - { -#ifdef PNG_WRITE_tEXt_SUPPORTED - /* Write uncompressed chunk */ - png_write_tEXt(png_ptr, info_ptr->text[i].key, - info_ptr->text[i].text, 0); -#else - png_warning(png_ptr, "Unable to write uncompressed text"); -#endif - - /* Mark this chunk as written */ - info_ptr->text[i].compression = PNG_TEXT_COMPRESSION_NONE_WR; - } - } -#endif -#ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED - write_unknown_chunks(png_ptr, info_ptr, PNG_AFTER_IDAT); -#endif - } - - png_ptr->mode |= PNG_AFTER_IDAT; - - /* Write end of PNG file */ - png_write_IEND(png_ptr); - - /* This flush, added in libpng-1.0.8, removed from libpng-1.0.9beta03, - * and restored again in libpng-1.2.30, may cause some applications that - * do not set png_ptr->output_flush_fn to crash. If your application - * experiences a problem, please try building libpng with - * PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED defined, and report the event to - * png-mng-implement at lists.sf.net . - */ -#ifdef PNG_WRITE_FLUSH_SUPPORTED -# ifdef PNG_WRITE_FLUSH_AFTER_IEND_SUPPORTED - png_flush(png_ptr); -# endif -#endif -} - -#ifdef PNG_CONVERT_tIME_SUPPORTED -void PNGAPI -png_convert_from_struct_tm(png_timep ptime, PNG_CONST struct tm * ttime) -{ - png_debug(1, "in png_convert_from_struct_tm"); - - ptime->year = (png_uint_16)(1900 + ttime->tm_year); - ptime->month = (png_byte)(ttime->tm_mon + 1); - ptime->day = (png_byte)ttime->tm_mday; - ptime->hour = (png_byte)ttime->tm_hour; - ptime->minute = (png_byte)ttime->tm_min; - ptime->second = (png_byte)ttime->tm_sec; -} - -void PNGAPI -png_convert_from_time_t(png_timep ptime, time_t ttime) -{ - struct tm *tbuf; - - png_debug(1, "in png_convert_from_time_t"); - - tbuf = gmtime(&ttime); - png_convert_from_struct_tm(ptime, tbuf); -} -#endif - -/* Initialize png_ptr structure, and allocate any memory needed */ -PNG_FUNCTION(png_structp,PNGAPI -png_create_write_struct,(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn),PNG_ALLOCATED) -{ -#ifndef PNG_USER_MEM_SUPPORTED - png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr, - error_fn, warn_fn, NULL, NULL, NULL); -#else - return png_create_write_struct_2(user_png_ver, error_ptr, error_fn, - warn_fn, NULL, NULL, NULL); -} - -/* Alternate initialize png_ptr structure, and allocate any memory needed */ -PNG_FUNCTION(png_structp,PNGAPI -png_create_write_struct_2,(png_const_charp user_png_ver, png_voidp error_ptr, - png_error_ptr error_fn, png_error_ptr warn_fn, png_voidp mem_ptr, - png_malloc_ptr malloc_fn, png_free_ptr free_fn),PNG_ALLOCATED) -{ - png_structrp png_ptr = png_create_png_struct(user_png_ver, error_ptr, - error_fn, warn_fn, mem_ptr, malloc_fn, free_fn); -#endif /* PNG_USER_MEM_SUPPORTED */ - if (png_ptr != NULL) - { - /* Set the zlib control values to defaults; they can be overridden by the - * application after the struct has been created. - */ - png_ptr->zbuffer_size = PNG_ZBUF_SIZE; - - /* The 'zlib_strategy' setting is irrelevant because png_default_claim in - * pngwutil.c defaults it according to whether or not filters will be - * used, and ignores this setting. - */ - png_ptr->zlib_strategy = PNG_Z_DEFAULT_STRATEGY; - png_ptr->zlib_level = PNG_Z_DEFAULT_COMPRESSION; - png_ptr->zlib_mem_level = 8; - png_ptr->zlib_window_bits = 15; - png_ptr->zlib_method = 8; - -#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED - png_ptr->zlib_text_strategy = PNG_TEXT_Z_DEFAULT_STRATEGY; - png_ptr->zlib_text_level = PNG_TEXT_Z_DEFAULT_COMPRESSION; - png_ptr->zlib_text_mem_level = 8; - png_ptr->zlib_text_window_bits = 15; - png_ptr->zlib_text_method = 8; -#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */ - - /* This is a highly dubious configuration option; by default it is off, - * but it may be appropriate for private builds that are testing - * extensions not conformant to the current specification, or of - * applications that must not fail to write at all costs! - */ -#ifdef PNG_BENIGN_WRITE_ERRORS_SUPPORTED - /* In stable builds only warn if an application error can be completely - * handled. - */ - png_ptr->flags |= PNG_FLAG_BENIGN_ERRORS_WARN; -#endif - - /* App warnings are warnings in release (or release candidate) builds but - * are errors during development. - */ -#if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC - png_ptr->flags |= PNG_FLAG_APP_WARNINGS_WARN; -#endif - - /* TODO: delay this, it can be done in png_init_io() (if the app doesn't - * do it itself) avoiding setting the default function if it is not - * required. - */ - png_set_write_fn(png_ptr, NULL, NULL, NULL); - } - - return png_ptr; -} - - -/* Write a few rows of image data. If the image is interlaced, - * either you will have to write the 7 sub images, or, if you - * have called png_set_interlace_handling(), you will have to - * "write" the image seven times. - */ -void PNGAPI -png_write_rows(png_structrp png_ptr, png_bytepp row, - png_uint_32 num_rows) -{ - png_uint_32 i; /* row counter */ - png_bytepp rp; /* row pointer */ - - png_debug(1, "in png_write_rows"); - - if (png_ptr == NULL) - return; - - /* Loop through the rows */ - for (i = 0, rp = row; i < num_rows; i++, rp++) - { - png_write_row(png_ptr, *rp); - } -} - -/* Write the image. You only need to call this function once, even - * if you are writing an interlaced image. - */ -void PNGAPI -png_write_image(png_structrp png_ptr, png_bytepp image) -{ - png_uint_32 i; /* row index */ - int pass, num_pass; /* pass variables */ - png_bytepp rp; /* points to current row */ - - if (png_ptr == NULL) - return; - - png_debug(1, "in png_write_image"); - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* Initialize interlace handling. If image is not interlaced, - * this will set pass to 1 - */ - num_pass = png_set_interlace_handling(png_ptr); -#else - num_pass = 1; -#endif - /* Loop through passes */ - for (pass = 0; pass < num_pass; pass++) - { - /* Loop through image */ - for (i = 0, rp = image; i < png_ptr->height; i++, rp++) - { - png_write_row(png_ptr, *rp); - } - } -} - -#ifdef PNG_MNG_FEATURES_SUPPORTED -/* Performs intrapixel differencing */ -static void -png_do_write_intrapixel(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_intrapixel"); - - if ((row_info->color_type & PNG_COLOR_MASK_COLOR)) - { - int bytes_per_pixel; - png_uint_32 row_width = row_info->width; - if (row_info->bit_depth == 8) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 3; - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 4; - - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - *(rp) = (png_byte)((*rp - *(rp + 1)) & 0xff); - *(rp + 2) = (png_byte)((*(rp + 2) - *(rp + 1)) & 0xff); - } - } - -#ifdef PNG_WRITE_16BIT_SUPPORTED - else if (row_info->bit_depth == 16) - { - png_bytep rp; - png_uint_32 i; - - if (row_info->color_type == PNG_COLOR_TYPE_RGB) - bytes_per_pixel = 6; - - else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - bytes_per_pixel = 8; - - else - return; - - for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel) - { - png_uint_32 s0 = (*(rp ) << 8) | *(rp + 1); - png_uint_32 s1 = (*(rp + 2) << 8) | *(rp + 3); - png_uint_32 s2 = (*(rp + 4) << 8) | *(rp + 5); - png_uint_32 red = (png_uint_32)((s0 - s1) & 0xffffL); - png_uint_32 blue = (png_uint_32)((s2 - s1) & 0xffffL); - *(rp ) = (png_byte)((red >> 8) & 0xff); - *(rp + 1) = (png_byte)(red & 0xff); - *(rp + 4) = (png_byte)((blue >> 8) & 0xff); - *(rp + 5) = (png_byte)(blue & 0xff); - } - } -#endif /* PNG_WRITE_16BIT_SUPPORTED */ - } -} -#endif /* PNG_MNG_FEATURES_SUPPORTED */ - -/* Called by user to write a row of image data */ -void PNGAPI -png_write_row(png_structrp png_ptr, png_const_bytep row) -{ - /* 1.5.6: moved from png_struct to be a local structure: */ - png_row_info row_info; - - if (png_ptr == NULL) - return; - - png_debug2(1, "in png_write_row (row %u, pass %d)", - png_ptr->row_number, png_ptr->pass); - - /* Initialize transformations and other stuff if first time */ - if (png_ptr->row_number == 0 && png_ptr->pass == 0) - { - /* Make sure we wrote the header info */ - if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE)) - png_error(png_ptr, - "png_write_info was never called before png_write_row"); - - /* Check for transforms that have been set but were defined out */ -#if !defined(PNG_WRITE_INVERT_SUPPORTED) && defined(PNG_READ_INVERT_SUPPORTED) - if (png_ptr->transformations & PNG_INVERT_MONO) - png_warning(png_ptr, "PNG_WRITE_INVERT_SUPPORTED is not defined"); -#endif - -#if !defined(PNG_WRITE_FILLER_SUPPORTED) && defined(PNG_READ_FILLER_SUPPORTED) - if (png_ptr->transformations & PNG_FILLER) - png_warning(png_ptr, "PNG_WRITE_FILLER_SUPPORTED is not defined"); -#endif -#if !defined(PNG_WRITE_PACKSWAP_SUPPORTED) && \ - defined(PNG_READ_PACKSWAP_SUPPORTED) - if (png_ptr->transformations & PNG_PACKSWAP) - png_warning(png_ptr, - "PNG_WRITE_PACKSWAP_SUPPORTED is not defined"); -#endif - -#if !defined(PNG_WRITE_PACK_SUPPORTED) && defined(PNG_READ_PACK_SUPPORTED) - if (png_ptr->transformations & PNG_PACK) - png_warning(png_ptr, "PNG_WRITE_PACK_SUPPORTED is not defined"); -#endif - -#if !defined(PNG_WRITE_SHIFT_SUPPORTED) && defined(PNG_READ_SHIFT_SUPPORTED) - if (png_ptr->transformations & PNG_SHIFT) - png_warning(png_ptr, "PNG_WRITE_SHIFT_SUPPORTED is not defined"); -#endif - -#if !defined(PNG_WRITE_BGR_SUPPORTED) && defined(PNG_READ_BGR_SUPPORTED) - if (png_ptr->transformations & PNG_BGR) - png_warning(png_ptr, "PNG_WRITE_BGR_SUPPORTED is not defined"); -#endif - -#if !defined(PNG_WRITE_SWAP_SUPPORTED) && defined(PNG_READ_SWAP_SUPPORTED) - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_warning(png_ptr, "PNG_WRITE_SWAP_SUPPORTED is not defined"); -#endif - - png_write_start_row(png_ptr); - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* If interlaced and not interested in row, return */ - if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE)) - { - switch (png_ptr->pass) - { - case 0: - if (png_ptr->row_number & 0x07) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 1: - if ((png_ptr->row_number & 0x07) || png_ptr->width < 5) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 2: - if ((png_ptr->row_number & 0x07) != 4) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 3: - if ((png_ptr->row_number & 0x03) || png_ptr->width < 3) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 4: - if ((png_ptr->row_number & 0x03) != 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 5: - if ((png_ptr->row_number & 0x01) || png_ptr->width < 2) - { - png_write_finish_row(png_ptr); - return; - } - break; - - case 6: - if (!(png_ptr->row_number & 0x01)) - { - png_write_finish_row(png_ptr); - return; - } - break; - - default: /* error: ignore it */ - break; - } - } -#endif - - /* Set up row info for transformations */ - row_info.color_type = png_ptr->color_type; - row_info.width = png_ptr->usr_width; - row_info.channels = png_ptr->usr_channels; - row_info.bit_depth = png_ptr->usr_bit_depth; - row_info.pixel_depth = (png_byte)(row_info.bit_depth * row_info.channels); - row_info.rowbytes = PNG_ROWBYTES(row_info.pixel_depth, row_info.width); - - png_debug1(3, "row_info->color_type = %d", row_info.color_type); - png_debug1(3, "row_info->width = %u", row_info.width); - png_debug1(3, "row_info->channels = %d", row_info.channels); - png_debug1(3, "row_info->bit_depth = %d", row_info.bit_depth); - png_debug1(3, "row_info->pixel_depth = %d", row_info.pixel_depth); - png_debug1(3, "row_info->rowbytes = %lu", (unsigned long)row_info.rowbytes); - - /* Copy user's row into buffer, leaving room for filter byte. */ - memcpy(png_ptr->row_buf + 1, row, row_info.rowbytes); - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* Handle interlacing */ - if (png_ptr->interlaced && png_ptr->pass < 6 && - (png_ptr->transformations & PNG_INTERLACE)) - { - png_do_write_interlace(&row_info, png_ptr->row_buf + 1, png_ptr->pass); - /* This should always get caught above, but still ... */ - if (row_info.width == 0) - { - png_write_finish_row(png_ptr); - return; - } - } -#endif - -#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED - /* Handle other transformations */ - if (png_ptr->transformations) - png_do_write_transformations(png_ptr, &row_info); -#endif - - /* At this point the row_info pixel depth must match the 'transformed' depth, - * which is also the output depth. - */ - if (row_info.pixel_depth != png_ptr->pixel_depth || - row_info.pixel_depth != png_ptr->transformed_pixel_depth) - png_error(png_ptr, "internal write transform logic error"); - -#ifdef PNG_MNG_FEATURES_SUPPORTED - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING)) - { - /* Intrapixel differencing */ - png_do_write_intrapixel(&row_info, png_ptr->row_buf + 1); - } -#endif - -/* Added at libpng-1.5.10 */ -#ifdef PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED - /* Check for out-of-range palette index */ - if (row_info.color_type == PNG_COLOR_TYPE_PALETTE && - png_ptr->num_palette_max >= 0) - png_do_check_palette_indexes(png_ptr, &row_info); -#endif - - /* Find a filter if necessary, filter the row and write it out. */ - png_write_find_filter(png_ptr, &row_info); - - if (png_ptr->write_row_fn != NULL) - (*(png_ptr->write_row_fn))(png_ptr, png_ptr->row_number, png_ptr->pass); -} - -#ifdef PNG_WRITE_FLUSH_SUPPORTED -/* Set the automatic flush interval or 0 to turn flushing off */ -void PNGAPI -png_set_flush(png_structrp png_ptr, int nrows) -{ - png_debug(1, "in png_set_flush"); - - if (png_ptr == NULL) - return; - - png_ptr->flush_dist = (nrows < 0 ? 0 : nrows); -} - -/* Flush the current output buffers now */ -void PNGAPI -png_write_flush(png_structrp png_ptr) -{ - png_debug(1, "in png_write_flush"); - - if (png_ptr == NULL) - return; - - /* We have already written out all of the data */ - if (png_ptr->row_number >= png_ptr->num_rows) - return; - - png_compress_IDAT(png_ptr, NULL, 0, Z_SYNC_FLUSH); - png_ptr->flush_rows = 0; - png_flush(png_ptr); -} -#endif /* PNG_WRITE_FLUSH_SUPPORTED */ - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED -static void png_reset_filter_heuristics(png_structrp png_ptr);/* forward decl */ -#endif - -/* Free any memory used in png_ptr struct without freeing the struct itself. */ -static void -png_write_destroy(png_structrp png_ptr) -{ - png_debug(1, "in png_write_destroy"); - - /* Free any memory zlib uses */ - if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) - deflateEnd(&png_ptr->zstream); - - /* Free our memory. png_free checks NULL for us. */ - png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list); - png_free(png_ptr, png_ptr->row_buf); -#ifdef PNG_WRITE_FILTER_SUPPORTED - png_free(png_ptr, png_ptr->prev_row); - png_free(png_ptr, png_ptr->sub_row); - png_free(png_ptr, png_ptr->up_row); - png_free(png_ptr, png_ptr->avg_row); - png_free(png_ptr, png_ptr->paeth_row); -#endif - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - /* Use this to save a little code space, it doesn't free the filter_costs */ - png_reset_filter_heuristics(png_ptr); - png_free(png_ptr, png_ptr->filter_costs); - png_free(png_ptr, png_ptr->inv_filter_costs); -#endif - -#ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED - png_free(png_ptr, png_ptr->chunk_list); -#endif - - /* The error handling and memory handling information is left intact at this - * point: the jmp_buf may still have to be freed. See png_destroy_png_struct - * for how this happens. - */ -} - -/* Free all memory used by the write. - * In libpng 1.6.0 this API changed quietly to no longer accept a NULL value for - * *png_ptr_ptr. Prior to 1.6.0 it would accept such a value and it would free - * the passed in info_structs but it would quietly fail to free any of the data - * inside them. In 1.6.0 it quietly does nothing (it has to be quiet because it - * has no png_ptr.) - */ -void PNGAPI -png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr) -{ - png_debug(1, "in png_destroy_write_struct"); - - if (png_ptr_ptr != NULL) - { - png_structrp png_ptr = *png_ptr_ptr; - - if (png_ptr != NULL) /* added in libpng 1.6.0 */ - { - png_destroy_info_struct(png_ptr, info_ptr_ptr); - - *png_ptr_ptr = NULL; - png_write_destroy(png_ptr); - png_destroy_png_struct(png_ptr); - } - } -} - -/* Allow the application to select one or more row filters to use. */ -void PNGAPI -png_set_filter(png_structrp png_ptr, int method, int filters) -{ - png_debug(1, "in png_set_filter"); - - if (png_ptr == NULL) - return; - -#ifdef PNG_MNG_FEATURES_SUPPORTED - if ((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - (method == PNG_INTRAPIXEL_DIFFERENCING)) - method = PNG_FILTER_TYPE_BASE; - -#endif - if (method == PNG_FILTER_TYPE_BASE) - { - switch (filters & (PNG_ALL_FILTERS | 0x07)) - { -#ifdef PNG_WRITE_FILTER_SUPPORTED - case 5: - case 6: - case 7: png_app_error(png_ptr, "Unknown row filter for method 0"); - /* FALL THROUGH */ -#endif /* PNG_WRITE_FILTER_SUPPORTED */ - case PNG_FILTER_VALUE_NONE: - png_ptr->do_filter = PNG_FILTER_NONE; break; - -#ifdef PNG_WRITE_FILTER_SUPPORTED - case PNG_FILTER_VALUE_SUB: - png_ptr->do_filter = PNG_FILTER_SUB; break; - - case PNG_FILTER_VALUE_UP: - png_ptr->do_filter = PNG_FILTER_UP; break; - - case PNG_FILTER_VALUE_AVG: - png_ptr->do_filter = PNG_FILTER_AVG; break; - - case PNG_FILTER_VALUE_PAETH: - png_ptr->do_filter = PNG_FILTER_PAETH; break; - - default: - png_ptr->do_filter = (png_byte)filters; break; -#else - default: - png_app_error(png_ptr, "Unknown row filter for method 0"); -#endif /* PNG_WRITE_FILTER_SUPPORTED */ - } - - /* If we have allocated the row_buf, this means we have already started - * with the image and we should have allocated all of the filter buffers - * that have been selected. If prev_row isn't already allocated, then - * it is too late to start using the filters that need it, since we - * will be missing the data in the previous row. If an application - * wants to start and stop using particular filters during compression, - * it should start out with all of the filters, and then add and - * remove them after the start of compression. - */ - if (png_ptr->row_buf != NULL) - { -#ifdef PNG_WRITE_FILTER_SUPPORTED - if ((png_ptr->do_filter & PNG_FILTER_SUB) && png_ptr->sub_row == NULL) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - if ((png_ptr->do_filter & PNG_FILTER_UP) && png_ptr->up_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Up filter after starting"); - png_ptr->do_filter = (png_byte)(png_ptr->do_filter & - ~PNG_FILTER_UP); - } - - else - { - png_ptr->up_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_AVG) && png_ptr->avg_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Average filter after starting"); - png_ptr->do_filter = (png_byte)(png_ptr->do_filter & - ~PNG_FILTER_AVG); - } - - else - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - } - - if ((png_ptr->do_filter & PNG_FILTER_PAETH) && - png_ptr->paeth_row == NULL) - { - if (png_ptr->prev_row == NULL) - { - png_warning(png_ptr, "Can't add Paeth filter after starting"); - png_ptr->do_filter &= (png_byte)(~PNG_FILTER_PAETH); - } - - else - { - png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, - (png_ptr->rowbytes + 1)); - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } - } - - if (png_ptr->do_filter == PNG_NO_FILTERS) -#endif /* PNG_WRITE_FILTER_SUPPORTED */ - png_ptr->do_filter = PNG_FILTER_NONE; - } - } - else - png_error(png_ptr, "Unknown custom filter method"); -} - -/* This allows us to influence the way in which libpng chooses the "best" - * filter for the current scanline. While the "minimum-sum-of-absolute- - * differences metric is relatively fast and effective, there is some - * question as to whether it can be improved upon by trying to keep the - * filtered data going to zlib more consistent, hopefully resulting in - * better compression. - */ -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED /* GRR 970116 */ -/* Convenience reset API. */ -static void -png_reset_filter_heuristics(png_structrp png_ptr) -{ - /* Clear out any old values in the 'weights' - this must be done because if - * the app calls set_filter_heuristics multiple times with different - * 'num_weights' values we would otherwise potentially have wrong sized - * arrays. - */ - png_ptr->num_prev_filters = 0; - png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_UNWEIGHTED; - if (png_ptr->prev_filters != NULL) - { - png_bytep old = png_ptr->prev_filters; - png_ptr->prev_filters = NULL; - png_free(png_ptr, old); - } - if (png_ptr->filter_weights != NULL) - { - png_uint_16p old = png_ptr->filter_weights; - png_ptr->filter_weights = NULL; - png_free(png_ptr, old); - } - - if (png_ptr->inv_filter_weights != NULL) - { - png_uint_16p old = png_ptr->inv_filter_weights; - png_ptr->inv_filter_weights = NULL; - png_free(png_ptr, old); - } - - /* Leave the filter_costs - this array is fixed size. */ -} - -static int -png_init_filter_heuristics(png_structrp png_ptr, int heuristic_method, - int num_weights) -{ - if (png_ptr == NULL) - return 0; - - /* Clear out the arrays */ - png_reset_filter_heuristics(png_ptr); - - /* Check arguments; the 'reset' function makes the correct settings for the - * unweighted case, but we must handle the weight case by initializing the - * arrays for the caller. - */ - if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int i; - - if (num_weights > 0) - { - png_ptr->prev_filters = (png_bytep)png_malloc(png_ptr, - (png_uint_32)((sizeof (png_byte)) * num_weights)); - - /* To make sure that the weighting starts out fairly */ - for (i = 0; i < num_weights; i++) - { - png_ptr->prev_filters[i] = 255; - } - - png_ptr->filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)((sizeof (png_uint_16)) * num_weights)); - - png_ptr->inv_filter_weights = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)((sizeof (png_uint_16)) * num_weights)); - - for (i = 0; i < num_weights; i++) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - - /* Safe to set this now */ - png_ptr->num_prev_filters = (png_byte)num_weights; - } - - /* If, in the future, there are other filter methods, this would - * need to be based on png_ptr->filter. - */ - if (png_ptr->filter_costs == NULL) - { - png_ptr->filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST)); - - png_ptr->inv_filter_costs = (png_uint_16p)png_malloc(png_ptr, - (png_uint_32)((sizeof (png_uint_16)) * PNG_FILTER_VALUE_LAST)); - } - - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - { - png_ptr->inv_filter_costs[i] = - png_ptr->filter_costs[i] = PNG_COST_FACTOR; - } - - /* All the arrays are inited, safe to set this: */ - png_ptr->heuristic_method = PNG_FILTER_HEURISTIC_WEIGHTED; - - /* Return the 'ok' code. */ - return 1; - } - else if (heuristic_method == PNG_FILTER_HEURISTIC_DEFAULT || - heuristic_method == PNG_FILTER_HEURISTIC_UNWEIGHTED) - { - return 1; - } - else - { - png_warning(png_ptr, "Unknown filter heuristic method"); - return 0; - } -} - -/* Provide floating and fixed point APIs */ -#ifdef PNG_FLOATING_POINT_SUPPORTED -void PNGAPI -png_set_filter_heuristics(png_structrp png_ptr, int heuristic_method, - int num_weights, png_const_doublep filter_weights, - png_const_doublep filter_costs) -{ - png_debug(1, "in png_set_filter_heuristics"); - - /* The internal API allocates all the arrays and ensures that the elements of - * those arrays are set to the default value. - */ - if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights)) - return; - - /* If using the weighted method copy in the weights. */ - if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int i; - for (i = 0; i < num_weights; i++) - { - if (filter_weights[i] <= 0.0) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - - else - { - png_ptr->inv_filter_weights[i] = - (png_uint_16)(PNG_WEIGHT_FACTOR*filter_weights[i]+.5); - - png_ptr->filter_weights[i] = - (png_uint_16)(PNG_WEIGHT_FACTOR/filter_weights[i]+.5); - } - } - - /* Here is where we set the relative costs of the different filters. We - * should take the desired compression level into account when setting - * the costs, so that Paeth, for instance, has a high relative cost at low - * compression levels, while it has a lower relative cost at higher - * compression settings. The filter types are in order of increasing - * relative cost, so it would be possible to do this with an algorithm. - */ - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) if (filter_costs[i] >= 1.0) - { - png_ptr->inv_filter_costs[i] = - (png_uint_16)(PNG_COST_FACTOR / filter_costs[i] + .5); - - png_ptr->filter_costs[i] = - (png_uint_16)(PNG_COST_FACTOR * filter_costs[i] + .5); - } - } -} -#endif /* FLOATING_POINT */ - -#ifdef PNG_FIXED_POINT_SUPPORTED -void PNGAPI -png_set_filter_heuristics_fixed(png_structrp png_ptr, int heuristic_method, - int num_weights, png_const_fixed_point_p filter_weights, - png_const_fixed_point_p filter_costs) -{ - png_debug(1, "in png_set_filter_heuristics_fixed"); - - /* The internal API allocates all the arrays and ensures that the elements of - * those arrays are set to the default value. - */ - if (!png_init_filter_heuristics(png_ptr, heuristic_method, num_weights)) - return; - - /* If using the weighted method copy in the weights. */ - if (heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int i; - for (i = 0; i < num_weights; i++) - { - if (filter_weights[i] <= 0) - { - png_ptr->inv_filter_weights[i] = - png_ptr->filter_weights[i] = PNG_WEIGHT_FACTOR; - } - - else - { - png_ptr->inv_filter_weights[i] = (png_uint_16) - ((PNG_WEIGHT_FACTOR*filter_weights[i]+PNG_FP_HALF)/PNG_FP_1); - - png_ptr->filter_weights[i] = (png_uint_16)((PNG_WEIGHT_FACTOR* - PNG_FP_1+(filter_weights[i]/2))/filter_weights[i]); - } - } - - /* Here is where we set the relative costs of the different filters. We - * should take the desired compression level into account when setting - * the costs, so that Paeth, for instance, has a high relative cost at low - * compression levels, while it has a lower relative cost at higher - * compression settings. The filter types are in order of increasing - * relative cost, so it would be possible to do this with an algorithm. - */ - for (i = 0; i < PNG_FILTER_VALUE_LAST; i++) - if (filter_costs[i] >= PNG_FP_1) - { - png_uint_32 tmp; - - /* Use a 32 bit unsigned temporary here because otherwise the - * intermediate value will be a 32 bit *signed* integer (ANSI rules) - * and this will get the wrong answer on division. - */ - tmp = PNG_COST_FACTOR*PNG_FP_1 + (filter_costs[i]/2); - tmp /= filter_costs[i]; - - png_ptr->inv_filter_costs[i] = (png_uint_16)tmp; - - tmp = PNG_COST_FACTOR * filter_costs[i] + PNG_FP_HALF; - tmp /= PNG_FP_1; - - png_ptr->filter_costs[i] = (png_uint_16)tmp; - } - } -} -#endif /* FIXED_POINT */ -#endif /* PNG_WRITE_WEIGHTED_FILTER_SUPPORTED */ - -void PNGAPI -png_set_compression_level(png_structrp png_ptr, int level) -{ - png_debug(1, "in png_set_compression_level"); - - if (png_ptr == NULL) - return; - - png_ptr->zlib_level = level; -} - -void PNGAPI -png_set_compression_mem_level(png_structrp png_ptr, int mem_level) -{ - png_debug(1, "in png_set_compression_mem_level"); - - if (png_ptr == NULL) - return; - - png_ptr->zlib_mem_level = mem_level; -} - -void PNGAPI -png_set_compression_strategy(png_structrp png_ptr, int strategy) -{ - png_debug(1, "in png_set_compression_strategy"); - - if (png_ptr == NULL) - return; - - /* The flag setting here prevents the libpng dynamic selection of strategy. - */ - png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY; - png_ptr->zlib_strategy = strategy; -} - -/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a - * smaller value of window_bits if it can do so safely. - */ -void PNGAPI -png_set_compression_window_bits(png_structrp png_ptr, int window_bits) -{ - if (png_ptr == NULL) - return; - - /* Prior to 1.6.0 this would warn but then set the window_bits value, this - * meant that negative window bits values could be selected which would cause - * libpng to write a non-standard PNG file with raw deflate or gzip - * compressed IDAT or ancillary chunks. Such files can be read and there is - * no warning on read, so this seems like a very bad idea. - */ - if (window_bits > 15) - { - png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); - window_bits = 15; - } - - else if (window_bits < 8) - { - png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); - window_bits = 8; - } - - png_ptr->zlib_window_bits = window_bits; -} - -void PNGAPI -png_set_compression_method(png_structrp png_ptr, int method) -{ - png_debug(1, "in png_set_compression_method"); - - if (png_ptr == NULL) - return; - - /* This would produce an invalid PNG file if it worked, but it doesn't and - * deflate will fault it, so it is harmless to just warn here. - */ - if (method != 8) - png_warning(png_ptr, "Only compression method 8 is supported by PNG"); - - png_ptr->zlib_method = method; -} - -/* The following were added to libpng-1.5.4 */ -#ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED -void PNGAPI -png_set_text_compression_level(png_structrp png_ptr, int level) -{ - png_debug(1, "in png_set_text_compression_level"); - - if (png_ptr == NULL) - return; - - png_ptr->zlib_text_level = level; -} - -void PNGAPI -png_set_text_compression_mem_level(png_structrp png_ptr, int mem_level) -{ - png_debug(1, "in png_set_text_compression_mem_level"); - - if (png_ptr == NULL) - return; - - png_ptr->zlib_text_mem_level = mem_level; -} - -void PNGAPI -png_set_text_compression_strategy(png_structrp png_ptr, int strategy) -{ - png_debug(1, "in png_set_text_compression_strategy"); - - if (png_ptr == NULL) - return; - - png_ptr->zlib_text_strategy = strategy; -} - -/* If PNG_WRITE_OPTIMIZE_CMF_SUPPORTED is defined, libpng will use a - * smaller value of window_bits if it can do so safely. - */ -void PNGAPI -png_set_text_compression_window_bits(png_structrp png_ptr, int window_bits) -{ - if (png_ptr == NULL) - return; - - if (window_bits > 15) - { - png_warning(png_ptr, "Only compression windows <= 32k supported by PNG"); - window_bits = 15; - } - - else if (window_bits < 8) - { - png_warning(png_ptr, "Only compression windows >= 256 supported by PNG"); - window_bits = 8; - } - - png_ptr->zlib_text_window_bits = window_bits; -} - -void PNGAPI -png_set_text_compression_method(png_structrp png_ptr, int method) -{ - png_debug(1, "in png_set_text_compression_method"); - - if (png_ptr == NULL) - return; - - if (method != 8) - png_warning(png_ptr, "Only compression method 8 is supported by PNG"); - - png_ptr->zlib_text_method = method; -} -#endif /* PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED */ -/* end of API added to libpng-1.5.4 */ - -void PNGAPI -png_set_write_status_fn(png_structrp png_ptr, png_write_status_ptr write_row_fn) -{ - if (png_ptr == NULL) - return; - - png_ptr->write_row_fn = write_row_fn; -} - -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED -void PNGAPI -png_set_write_user_transform_fn(png_structrp png_ptr, png_user_transform_ptr - write_user_transform_fn) -{ - png_debug(1, "in png_set_write_user_transform_fn"); - - if (png_ptr == NULL) - return; - - png_ptr->transformations |= PNG_USER_TRANSFORM; - png_ptr->write_user_transform_fn = write_user_transform_fn; -} -#endif - - -#ifdef PNG_INFO_IMAGE_SUPPORTED -void PNGAPI -png_write_png(png_structrp png_ptr, png_inforp info_ptr, - int transforms, voidp params) -{ - if (png_ptr == NULL || info_ptr == NULL) - return; - - if ((info_ptr->valid & PNG_INFO_IDAT) == 0) - { - png_app_error(png_ptr, "no rows for png_write_image to write"); - return; - } - - /* Write the file header information. */ - png_write_info(png_ptr, info_ptr); - - /* ------ these transformations don't touch the info structure ------- */ - - /* Invert monochrome pixels */ - if (transforms & PNG_TRANSFORM_INVERT_MONO) -#ifdef PNG_WRITE_INVERT_SUPPORTED - png_set_invert_mono(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_MONO not supported"); -#endif - - /* Shift the pixels up to a legal bit depth and fill in - * as appropriate to correctly scale the image. - */ - if (transforms & PNG_TRANSFORM_SHIFT) -#ifdef PNG_WRITE_SHIFT_SUPPORTED - if (info_ptr->valid & PNG_INFO_sBIT) - png_set_shift(png_ptr, &info_ptr->sig_bit); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SHIFT not supported"); -#endif - - /* Pack pixels into bytes */ - if (transforms & PNG_TRANSFORM_PACKING) -#ifdef PNG_WRITE_PACK_SUPPORTED - png_set_packing(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_PACKING not supported"); -#endif - - /* Swap location of alpha bytes from ARGB to RGBA */ - if (transforms & PNG_TRANSFORM_SWAP_ALPHA) -#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED - png_set_swap_alpha(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ALPHA not supported"); -#endif - - /* Remove a filler (X) from XRGB/RGBX/AG/GA into to convert it into - * RGB, note that the code expects the input color type to be G or RGB; no - * alpha channel. - */ - if (transforms & - (PNG_TRANSFORM_STRIP_FILLER_AFTER|PNG_TRANSFORM_STRIP_FILLER_BEFORE)) - { -#ifdef PNG_WRITE_FILLER_SUPPORTED - if (transforms & PNG_TRANSFORM_STRIP_FILLER_AFTER) - { - if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) - png_app_error(png_ptr, - "PNG_TRANSFORM_STRIP_FILLER: BEFORE+AFTER not supported"); - - /* Continue if ignored - this is the pre-1.6.10 behavior */ - png_set_filler(png_ptr, 0, PNG_FILLER_AFTER); - } - - else if (transforms & PNG_TRANSFORM_STRIP_FILLER_BEFORE) - png_set_filler(png_ptr, 0, PNG_FILLER_BEFORE); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_STRIP_FILLER not supported"); -#endif - } - - /* Flip BGR pixels to RGB */ - if (transforms & PNG_TRANSFORM_BGR) -#ifdef PNG_WRITE_BGR_SUPPORTED - png_set_bgr(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_BGR not supported"); -#endif - - /* Swap bytes of 16-bit files to most significant byte first */ - if (transforms & PNG_TRANSFORM_SWAP_ENDIAN) -#ifdef PNG_WRITE_SWAP_SUPPORTED - png_set_swap(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_SWAP_ENDIAN not supported"); -#endif - - /* Swap bits of 1, 2, 4 bit packed pixel formats */ - if (transforms & PNG_TRANSFORM_PACKSWAP) -#ifdef PNG_WRITE_PACKSWAP_SUPPORTED - png_set_packswap(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_PACKSWAP not supported"); -#endif - - /* Invert the alpha channel from opacity to transparency */ - if (transforms & PNG_TRANSFORM_INVERT_ALPHA) -#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED - png_set_invert_alpha(png_ptr); -#else - png_app_error(png_ptr, "PNG_TRANSFORM_INVERT_ALPHA not supported"); -#endif - - /* ----------------------- end of transformations ------------------- */ - - /* Write the bits */ - png_write_image(png_ptr, info_ptr->row_pointers); - - /* It is REQUIRED to call this to finish writing the rest of the file */ - png_write_end(png_ptr, info_ptr); - - PNG_UNUSED(params) -} -#endif - - -#ifdef PNG_SIMPLIFIED_WRITE_SUPPORTED -#ifdef PNG_STDIO_SUPPORTED /* currently required for png_image_write_* */ -/* Initialize the write structure - general purpose utility. */ -static int -png_image_write_init(png_imagep image) -{ - png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, image, - png_safe_error, png_safe_warning); - - if (png_ptr != NULL) - { - png_infop info_ptr = png_create_info_struct(png_ptr); - - if (info_ptr != NULL) - { - png_controlp control = png_voidcast(png_controlp, - png_malloc_warn(png_ptr, (sizeof *control))); - - if (control != NULL) - { - memset(control, 0, (sizeof *control)); - - control->png_ptr = png_ptr; - control->info_ptr = info_ptr; - control->for_write = 1; - - image->opaque = control; - return 1; - } - - /* Error clean up */ - png_destroy_info_struct(png_ptr, &info_ptr); - } - - png_destroy_write_struct(&png_ptr, NULL); - } - - return png_image_error(image, "png_image_write_: out of memory"); -} - -/* Arguments to png_image_write_main: */ -typedef struct -{ - /* Arguments: */ - png_imagep image; - png_const_voidp buffer; - png_int_32 row_stride; - png_const_voidp colormap; - int convert_to_8bit; - /* Local variables: */ - png_const_voidp first_row; - ptrdiff_t row_bytes; - png_voidp local_row; -} png_image_write_control; - -/* Write png_uint_16 input to a 16-bit PNG; the png_ptr has already been set to - * do any necessary byte swapping. The component order is defined by the - * png_image format value. - */ -static int -png_write_image_16bit(png_voidp argument) -{ - png_image_write_control *display = png_voidcast(png_image_write_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - - png_const_uint_16p input_row = png_voidcast(png_const_uint_16p, - display->first_row); - png_uint_16p output_row = png_voidcast(png_uint_16p, display->local_row); - png_uint_16p row_end; - const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; - int aindex = 0; - png_uint_32 y = image->height; - - if (image->format & PNG_FORMAT_FLAG_ALPHA) - { -# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED - if (image->format & PNG_FORMAT_FLAG_AFIRST) - { - aindex = -1; - ++input_row; /* To point to the first component */ - ++output_row; - } - - else -# endif - aindex = channels; - } - - else - png_error(png_ptr, "png_write_image: internal call error"); - - /* Work out the output row end and count over this, note that the increment - * above to 'row' means that row_end can actually be beyond the end of the - * row; this is correct. - */ - row_end = output_row + image->width * (channels+1); - - while (y-- > 0) - { - png_const_uint_16p in_ptr = input_row; - png_uint_16p out_ptr = output_row; - - while (out_ptr < row_end) - { - const png_uint_16 alpha = in_ptr[aindex]; - png_uint_32 reciprocal = 0; - int c; - - out_ptr[aindex] = alpha; - - /* Calculate a reciprocal. The correct calculation is simply - * component/alpha*65535 << 15. (I.e. 15 bits of precision); this - * allows correct rounding by adding .5 before the shift. 'reciprocal' - * is only initialized when required. - */ - if (alpha > 0 && alpha < 65535) - reciprocal = ((0xffff<<15)+(alpha>>1))/alpha; - - c = channels; - do /* always at least one channel */ - { - png_uint_16 component = *in_ptr++; - - /* The following gives 65535 for an alpha of 0, which is fine, - * otherwise if 0/0 is represented as some other value there is more - * likely to be a discontinuity which will probably damage - * compression when moving from a fully transparent area to a - * nearly transparent one. (The assumption here is that opaque - * areas tend not to be 0 intensity.) - */ - if (component >= alpha) - component = 65535; - - /* component 0 && alpha < 65535) - { - png_uint_32 calc = component * reciprocal; - calc += 16384; /* round to nearest */ - component = (png_uint_16)(calc >> 15); - } - - *out_ptr++ = component; - } - while (--c > 0); - - /* Skip to next component (skip the intervening alpha channel) */ - ++in_ptr; - ++out_ptr; - } - - png_write_row(png_ptr, png_voidcast(png_const_bytep, display->local_row)); - input_row += display->row_bytes/(sizeof (png_uint_16)); - } - - return 1; -} - -/* Given 16-bit input (1 to 4 channels) write 8-bit output. If an alpha channel - * is present it must be removed from the components, the components are then - * written in sRGB encoding. No components are added or removed. - * - * Calculate an alpha reciprocal to reverse pre-multiplication. As above the - * calculation can be done to 15 bits of accuracy; however, the output needs to - * be scaled in the range 0..255*65535, so include that scaling here. - */ -#define UNP_RECIPROCAL(alpha) ((((0xffff*0xff)<<7)+(alpha>>1))/alpha) - -static png_byte -png_unpremultiply(png_uint_32 component, png_uint_32 alpha, - png_uint_32 reciprocal/*from the above macro*/) -{ - /* The following gives 1.0 for an alpha of 0, which is fine, otherwise if 0/0 - * is represented as some other value there is more likely to be a - * discontinuity which will probably damage compression when moving from a - * fully transparent area to a nearly transparent one. (The assumption here - * is that opaque areas tend not to be 0 intensity.) - * - * There is a rounding problem here; if alpha is less than 128 it will end up - * as 0 when scaled to 8 bits. To avoid introducing spurious colors into the - * output change for this too. - */ - if (component >= alpha || alpha < 128) - return 255; - - /* component 0) - { - /* The test is that alpha/257 (rounded) is less than 255, the first value - * that becomes 255 is 65407. - * NOTE: this must agree with the PNG_DIV257 macro (which must, therefore, - * be exact!) [Could also test reciprocal != 0] - */ - if (alpha < 65407) - { - component *= reciprocal; - component += 64; /* round to nearest */ - component >>= 7; - } - - else - component *= 255; - - /* Convert the component to sRGB. */ - return (png_byte)PNG_sRGB_FROM_LINEAR(component); - } - - else - return 0; -} - -static int -png_write_image_8bit(png_voidp argument) -{ - png_image_write_control *display = png_voidcast(png_image_write_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - - png_const_uint_16p input_row = png_voidcast(png_const_uint_16p, - display->first_row); - png_bytep output_row = png_voidcast(png_bytep, display->local_row); - png_uint_32 y = image->height; - const int channels = (image->format & PNG_FORMAT_FLAG_COLOR) ? 3 : 1; - - if (image->format & PNG_FORMAT_FLAG_ALPHA) - { - png_bytep row_end; - int aindex; - -# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED - if (image->format & PNG_FORMAT_FLAG_AFIRST) - { - aindex = -1; - ++input_row; /* To point to the first component */ - ++output_row; - } - - else -# endif - aindex = channels; - - /* Use row_end in place of a loop counter: */ - row_end = output_row + image->width * (channels+1); - - while (y-- > 0) - { - png_const_uint_16p in_ptr = input_row; - png_bytep out_ptr = output_row; - - while (out_ptr < row_end) - { - png_uint_16 alpha = in_ptr[aindex]; - png_byte alphabyte = (png_byte)PNG_DIV257(alpha); - png_uint_32 reciprocal = 0; - int c; - - /* Scale and write the alpha channel. */ - out_ptr[aindex] = alphabyte; - - if (alphabyte > 0 && alphabyte < 255) - reciprocal = UNP_RECIPROCAL(alpha); - - c = channels; - do /* always at least one channel */ - *out_ptr++ = png_unpremultiply(*in_ptr++, alpha, reciprocal); - while (--c > 0); - - /* Skip to next component (skip the intervening alpha channel) */ - ++in_ptr; - ++out_ptr; - } /* while out_ptr < row_end */ - - png_write_row(png_ptr, png_voidcast(png_const_bytep, - display->local_row)); - input_row += display->row_bytes/(sizeof (png_uint_16)); - } /* while y */ - } - - else - { - /* No alpha channel, so the row_end really is the end of the row and it - * is sufficient to loop over the components one by one. - */ - png_bytep row_end = output_row + image->width * channels; - - while (y-- > 0) - { - png_const_uint_16p in_ptr = input_row; - png_bytep out_ptr = output_row; - - while (out_ptr < row_end) - { - png_uint_32 component = *in_ptr++; - - component *= 255; - *out_ptr++ = (png_byte)PNG_sRGB_FROM_LINEAR(component); - } - - png_write_row(png_ptr, output_row); - input_row += display->row_bytes/(sizeof (png_uint_16)); - } - } - - return 1; -} - -static void -png_image_set_PLTE(png_image_write_control *display) -{ - const png_imagep image = display->image; - const void *cmap = display->colormap; - const int entries = image->colormap_entries > 256 ? 256 : - (int)image->colormap_entries; - - /* NOTE: the caller must check for cmap != NULL and entries != 0 */ - const png_uint_32 format = image->format; - const int channels = PNG_IMAGE_SAMPLE_CHANNELS(format); - -# if defined(PNG_FORMAT_BGR_SUPPORTED) &&\ - defined(PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED) - const int afirst = (format & PNG_FORMAT_FLAG_AFIRST) != 0 && - (format & PNG_FORMAT_FLAG_ALPHA) != 0; -# else -# define afirst 0 -# endif - -# ifdef PNG_FORMAT_BGR_SUPPORTED - const int bgr = (format & PNG_FORMAT_FLAG_BGR) ? 2 : 0; -# else -# define bgr 0 -# endif - - int i, num_trans; - png_color palette[256]; - png_byte tRNS[256]; - - memset(tRNS, 255, (sizeof tRNS)); - memset(palette, 0, (sizeof palette)); - - for (i=num_trans=0; i= 3) /* RGB */ - { - palette[i].blue = (png_byte)PNG_sRGB_FROM_LINEAR(255 * - entry[(2 ^ bgr)]); - palette[i].green = (png_byte)PNG_sRGB_FROM_LINEAR(255 * - entry[1]); - palette[i].red = (png_byte)PNG_sRGB_FROM_LINEAR(255 * - entry[bgr]); - } - - else /* Gray */ - palette[i].blue = palette[i].red = palette[i].green = - (png_byte)PNG_sRGB_FROM_LINEAR(255 * *entry); - } - - else /* alpha */ - { - png_uint_16 alpha = entry[afirst ? 0 : channels-1]; - png_byte alphabyte = (png_byte)PNG_DIV257(alpha); - png_uint_32 reciprocal = 0; - - /* Calculate a reciprocal, as in the png_write_image_8bit code above - * this is designed to produce a value scaled to 255*65535 when - * divided by 128 (i.e. asr 7). - */ - if (alphabyte > 0 && alphabyte < 255) - reciprocal = (((0xffff*0xff)<<7)+(alpha>>1))/alpha; - - tRNS[i] = alphabyte; - if (alphabyte < 255) - num_trans = i+1; - - if (channels >= 3) /* RGB */ - { - palette[i].blue = png_unpremultiply(entry[afirst + (2 ^ bgr)], - alpha, reciprocal); - palette[i].green = png_unpremultiply(entry[afirst + 1], alpha, - reciprocal); - palette[i].red = png_unpremultiply(entry[afirst + bgr], alpha, - reciprocal); - } - - else /* gray */ - palette[i].blue = palette[i].red = palette[i].green = - png_unpremultiply(entry[afirst], alpha, reciprocal); - } - } - - else /* Color-map has sRGB values */ - { - png_const_bytep entry = png_voidcast(png_const_bytep, cmap); - - entry += i * channels; - - switch (channels) - { - case 4: - tRNS[i] = entry[afirst ? 0 : 3]; - if (tRNS[i] < 255) - num_trans = i+1; - /* FALL THROUGH */ - case 3: - palette[i].blue = entry[afirst + (2 ^ bgr)]; - palette[i].green = entry[afirst + 1]; - palette[i].red = entry[afirst + bgr]; - break; - - case 2: - tRNS[i] = entry[1 ^ afirst]; - if (tRNS[i] < 255) - num_trans = i+1; - /* FALL THROUGH */ - case 1: - palette[i].blue = palette[i].red = palette[i].green = - entry[afirst]; - break; - - default: - break; - } - } - } - -# ifdef afirst -# undef afirst -# endif -# ifdef bgr -# undef bgr -# endif - - png_set_PLTE(image->opaque->png_ptr, image->opaque->info_ptr, palette, - entries); - - if (num_trans > 0) - png_set_tRNS(image->opaque->png_ptr, image->opaque->info_ptr, tRNS, - num_trans, NULL); - - image->colormap_entries = entries; -} - -static int -png_image_write_main(png_voidp argument) -{ - png_image_write_control *display = png_voidcast(png_image_write_control*, - argument); - png_imagep image = display->image; - png_structrp png_ptr = image->opaque->png_ptr; - png_inforp info_ptr = image->opaque->info_ptr; - png_uint_32 format = image->format; - - int colormap = (format & PNG_FORMAT_FLAG_COLORMAP) != 0; - int linear = !colormap && (format & PNG_FORMAT_FLAG_LINEAR) != 0; /* input */ - int alpha = !colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0; - int write_16bit = linear && !colormap && !display->convert_to_8bit; - -# ifdef PNG_BENIGN_ERRORS_SUPPORTED - /* Make sure we error out on any bad situation */ - png_set_benign_errors(png_ptr, 0/*error*/); -# endif - - /* Default the 'row_stride' parameter if required. */ - if (display->row_stride == 0) - display->row_stride = PNG_IMAGE_ROW_STRIDE(*image); - - /* Set the required transforms then write the rows in the correct order. */ - if (format & PNG_FORMAT_FLAG_COLORMAP) - { - if (display->colormap != NULL && image->colormap_entries > 0) - { - png_uint_32 entries = image->colormap_entries; - - png_set_IHDR(png_ptr, info_ptr, image->width, image->height, - entries > 16 ? 8 : (entries > 4 ? 4 : (entries > 2 ? 2 : 1)), - PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - png_image_set_PLTE(display); - } - - else - png_error(image->opaque->png_ptr, - "no color-map for color-mapped image"); - } - - else - png_set_IHDR(png_ptr, info_ptr, image->width, image->height, - write_16bit ? 16 : 8, - ((format & PNG_FORMAT_FLAG_COLOR) ? PNG_COLOR_MASK_COLOR : 0) + - ((format & PNG_FORMAT_FLAG_ALPHA) ? PNG_COLOR_MASK_ALPHA : 0), - PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - /* Counter-intuitively the data transformations must be called *after* - * png_write_info, not before as in the read code, but the 'set' functions - * must still be called before. Just set the color space information, never - * write an interlaced image. - */ - - if (write_16bit != 0) - { - /* The gamma here is 1.0 (linear) and the cHRM chunk matches sRGB. */ - png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_LINEAR); - - if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB)) - png_set_cHRM_fixed(png_ptr, info_ptr, - /* color x y */ - /* white */ 31270, 32900, - /* red */ 64000, 33000, - /* green */ 30000, 60000, - /* blue */ 15000, 6000 - ); - } - - else if (!(image->flags & PNG_IMAGE_FLAG_COLORSPACE_NOT_sRGB)) - png_set_sRGB(png_ptr, info_ptr, PNG_sRGB_INTENT_PERCEPTUAL); - - /* Else writing an 8-bit file and the *colors* aren't sRGB, but the 8-bit - * space must still be gamma encoded. - */ - else - png_set_gAMA_fixed(png_ptr, info_ptr, PNG_GAMMA_sRGB_INVERSE); - - /* Write the file header. */ - png_write_info(png_ptr, info_ptr); - - /* Now set up the data transformations (*after* the header is written), - * remove the handled transformations from the 'format' flags for checking. - * - * First check for a little endian system if writing 16 bit files. - */ - if (write_16bit != 0) - { - PNG_CONST png_uint_16 le = 0x0001; - - if (*(png_const_bytep)&le) - png_set_swap(png_ptr); - } - -# ifdef PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED - if (format & PNG_FORMAT_FLAG_BGR) - { - if (!colormap && (format & PNG_FORMAT_FLAG_COLOR) != 0) - png_set_bgr(png_ptr); - format &= ~PNG_FORMAT_FLAG_BGR; - } -# endif - -# ifdef PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED - if (format & PNG_FORMAT_FLAG_AFIRST) - { - if (!colormap && (format & PNG_FORMAT_FLAG_ALPHA) != 0) - png_set_swap_alpha(png_ptr); - format &= ~PNG_FORMAT_FLAG_AFIRST; - } -# endif - - /* If there are 16 or fewer color-map entries we wrote a lower bit depth - * above, but the application data is still byte packed. - */ - if (colormap && image->colormap_entries <= 16) - png_set_packing(png_ptr); - - /* That should have handled all (both) the transforms. */ - if ((format & ~(png_uint_32)(PNG_FORMAT_FLAG_COLOR | PNG_FORMAT_FLAG_LINEAR | - PNG_FORMAT_FLAG_ALPHA | PNG_FORMAT_FLAG_COLORMAP)) != 0) - png_error(png_ptr, "png_write_image: unsupported transformation"); - - { - png_const_bytep row = png_voidcast(png_const_bytep, display->buffer); - ptrdiff_t row_bytes = display->row_stride; - - if (linear != 0) - row_bytes *= (sizeof (png_uint_16)); - - if (row_bytes < 0) - row += (image->height-1) * (-row_bytes); - - display->first_row = row; - display->row_bytes = row_bytes; - } - - /* Apply 'fast' options if the flag is set. */ - if ((image->flags & PNG_IMAGE_FLAG_FAST) != 0) - { - png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE, PNG_NO_FILTERS); - /* NOTE: determined by experiment using pngstest, this reflects some - * balance between the time to write the image once and the time to read - * it about 50 times. The speed-up in pngstest was about 10-20% of the - * total (user) time on a heavily loaded system. - */ - png_set_compression_level(png_ptr, 3); - } - - /* Check for the cases that currently require a pre-transform on the row - * before it is written. This only applies when the input is 16-bit and - * either there is an alpha channel or it is converted to 8-bit. - */ - if ((linear && alpha) || (!colormap && display->convert_to_8bit)) - { - png_bytep row = png_voidcast(png_bytep, png_malloc(png_ptr, - png_get_rowbytes(png_ptr, info_ptr))); - int result; - - display->local_row = row; - if (write_16bit != 0) - result = png_safe_execute(image, png_write_image_16bit, display); - else - result = png_safe_execute(image, png_write_image_8bit, display); - display->local_row = NULL; - - png_free(png_ptr, row); - - /* Skip the 'write_end' on error: */ - if (result == 0) - return 0; - } - - /* Otherwise this is the case where the input is in a format currently - * supported by the rest of the libpng write code; call it directly. - */ - else - { - png_const_bytep row = png_voidcast(png_const_bytep, display->first_row); - ptrdiff_t row_bytes = display->row_bytes; - png_uint_32 y = image->height; - - while (y-- > 0) - { - png_write_row(png_ptr, row); - row += row_bytes; - } - } - - png_write_end(png_ptr, info_ptr); - return 1; -} - -int PNGAPI -png_image_write_to_stdio(png_imagep image, FILE *file, int convert_to_8bit, - const void *buffer, png_int_32 row_stride, const void *colormap) -{ - /* Write the image to the given (FILE*). */ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - if (file != NULL) - { - if (png_image_write_init(image)) - { - png_image_write_control display; - int result; - - /* This is slightly evil, but png_init_io doesn't do anything other - * than this and we haven't changed the standard IO functions so - * this saves a 'safe' function. - */ - image->opaque->png_ptr->io_ptr = file; - - memset(&display, 0, (sizeof display)); - display.image = image; - display.buffer = buffer; - display.row_stride = row_stride; - display.colormap = colormap; - display.convert_to_8bit = convert_to_8bit; - - result = png_safe_execute(image, png_image_write_main, &display); - png_image_free(image); - return result; - } - - else - return 0; - } - - else - return png_image_error(image, - "png_image_write_to_stdio: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_write_to_stdio: incorrect PNG_IMAGE_VERSION"); - - else - return 0; -} - -int PNGAPI -png_image_write_to_file(png_imagep image, const char *file_name, - int convert_to_8bit, const void *buffer, png_int_32 row_stride, - const void *colormap) -{ - /* Write the image to the named file. */ - if (image != NULL && image->version == PNG_IMAGE_VERSION) - { - if (file_name != NULL) - { - FILE *fp = fopen(file_name, "wb"); - - if (fp != NULL) - { - if (png_image_write_to_stdio(image, fp, convert_to_8bit, buffer, - row_stride, colormap)) - { - int error; /* from fflush/fclose */ - - /* Make sure the file is flushed correctly. */ - if (fflush(fp) == 0 && ferror(fp) == 0) - { - if (fclose(fp) == 0) - return 1; - - error = errno; /* from fclose */ - } - - else - { - error = errno; /* from fflush or ferror */ - (void)fclose(fp); - } - - (void)remove(file_name); - /* The image has already been cleaned up; this is just used to - * set the error (because the original write succeeded). - */ - return png_image_error(image, strerror(error)); - } - - else - { - /* Clean up: just the opened file. */ - (void)fclose(fp); - (void)remove(file_name); - return 0; - } - } - - else - return png_image_error(image, strerror(errno)); - } - - else - return png_image_error(image, - "png_image_write_to_file: invalid argument"); - } - - else if (image != NULL) - return png_image_error(image, - "png_image_write_to_file: incorrect PNG_IMAGE_VERSION"); - - else - return 0; -} -#endif /* PNG_STDIO_SUPPORTED */ -#endif /* SIMPLIFIED_WRITE */ -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwtran.c b/png/pngwtran.c deleted file mode 100755 index 215bd68..0000000 --- a/png/pngwtran.c +++ /dev/null @@ -1,572 +0,0 @@ - -/* pngwtran.c - transforms the data in a row for PNG writers - * - * Last changed in libpng 1.6.9 [February 6, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -#include "pngpriv.h" - -#ifdef PNG_WRITE_SUPPORTED -#ifdef PNG_WRITE_TRANSFORMS_SUPPORTED - -#ifdef PNG_WRITE_PACK_SUPPORTED -/* Pack pixels into bytes. Pass the true bit depth in bit_depth. The - * row_info bit depth should be 8 (one pixel per byte). The channels - * should be 1 (this only happens on grayscale and paletted images). - */ -static void -png_do_pack(png_row_infop row_info, png_bytep row, png_uint_32 bit_depth) -{ - png_debug(1, "in png_do_pack"); - - if (row_info->bit_depth == 8 && - row_info->channels == 1) - { - switch ((int)bit_depth) - { - case 1: - { - png_bytep sp, dp; - int mask, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - mask = 0x80; - v = 0; - - for (i = 0; i < row_width; i++) - { - if (*sp != 0) - v |= mask; - - sp++; - - if (mask > 1) - mask >>= 1; - - else - { - mask = 0x80; - *dp = (png_byte)v; - dp++; - v = 0; - } - } - - if (mask != 0x80) - *dp = (png_byte)v; - - break; - } - - case 2: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 6; - v = 0; - - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x03); - v |= (value << shift); - - if (shift == 0) - { - shift = 6; - *dp = (png_byte)v; - dp++; - v = 0; - } - - else - shift -= 2; - - sp++; - } - - if (shift != 6) - *dp = (png_byte)v; - - break; - } - - case 4: - { - png_bytep sp, dp; - int shift, v; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - sp = row; - dp = row; - shift = 4; - v = 0; - - for (i = 0; i < row_width; i++) - { - png_byte value; - - value = (png_byte)(*sp & 0x0f); - v |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp = (png_byte)v; - dp++; - v = 0; - } - - else - shift -= 4; - - sp++; - } - - if (shift != 4) - *dp = (png_byte)v; - - break; - } - - default: - break; - } - - row_info->bit_depth = (png_byte)bit_depth; - row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels); - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_info->width); - } -} -#endif - -#ifdef PNG_WRITE_SHIFT_SUPPORTED -/* Shift pixel values to take advantage of whole range. Pass the - * true number of bits in bit_depth. The row should be packed - * according to row_info->bit_depth. Thus, if you had a row of - * bit depth 4, but the pixels only had values from 0 to 7, you - * would pass 3 as bit_depth, and this routine would translate the - * data to 0 to 15. - */ -static void -png_do_shift(png_row_infop row_info, png_bytep row, - png_const_color_8p bit_depth) -{ - png_debug(1, "in png_do_shift"); - - if (row_info->color_type != PNG_COLOR_TYPE_PALETTE) - { - int shift_start[4], shift_dec[4]; - int channels = 0; - - if (row_info->color_type & PNG_COLOR_MASK_COLOR) - { - shift_start[channels] = row_info->bit_depth - bit_depth->red; - shift_dec[channels] = bit_depth->red; - channels++; - - shift_start[channels] = row_info->bit_depth - bit_depth->green; - shift_dec[channels] = bit_depth->green; - channels++; - - shift_start[channels] = row_info->bit_depth - bit_depth->blue; - shift_dec[channels] = bit_depth->blue; - channels++; - } - - else - { - shift_start[channels] = row_info->bit_depth - bit_depth->gray; - shift_dec[channels] = bit_depth->gray; - channels++; - } - - if (row_info->color_type & PNG_COLOR_MASK_ALPHA) - { - shift_start[channels] = row_info->bit_depth - bit_depth->alpha; - shift_dec[channels] = bit_depth->alpha; - channels++; - } - - /* With low row depths, could only be grayscale, so one channel */ - if (row_info->bit_depth < 8) - { - png_bytep bp = row; - png_size_t i; - unsigned int mask; - png_size_t row_bytes = row_info->rowbytes; - - if (bit_depth->gray == 1 && row_info->bit_depth == 2) - mask = 0x55; - - else if (row_info->bit_depth == 4 && bit_depth->gray == 3) - mask = 0x11; - - else - mask = 0xff; - - for (i = 0; i < row_bytes; i++, bp++) - { - int j; - unsigned int v, out; - - v = *bp; - out = 0; - - for (j = shift_start[0]; j > -shift_dec[0]; j -= shift_dec[0]) - { - if (j > 0) - out |= v << j; - - else - out |= (v >> (-j)) & mask; - } - - *bp = (png_byte)(out & 0xff); - } - } - - else if (row_info->bit_depth == 8) - { - png_bytep bp = row; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (i = 0; i < istop; i++, bp++) - { - - const unsigned int c = i%channels; - int j; - unsigned int v, out; - - v = *bp; - out = 0; - - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - out |= v << j; - - else - out |= v >> (-j); - } - - *bp = (png_byte)(out & 0xff); - } - } - - else - { - png_bytep bp; - png_uint_32 i; - png_uint_32 istop = channels * row_info->width; - - for (bp = row, i = 0; i < istop; i++) - { - const unsigned int c = i%channels; - int j; - unsigned int value, v; - - v = png_get_uint_16(bp); - value = 0; - - for (j = shift_start[c]; j > -shift_dec[c]; j -= shift_dec[c]) - { - if (j > 0) - value |= v << j; - - else - value |= v >> (-j); - } - *bp++ = (png_byte)((value >> 8) & 0xff); - *bp++ = (png_byte)(value & 0xff); - } - } - } -} -#endif - -#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED -static void -png_do_write_swap_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_swap_alpha"); - - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This converts from ARGB to RGBA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - -#ifdef PNG_WRITE_16BIT_SUPPORTED - else - { - /* This converts from AARRGGBB to RRGGBBAA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } -#endif /* PNG_WRITE_16BIT_SUPPORTED */ - } - - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This converts from AG to GA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save; - } - } - -#ifdef PNG_WRITE_16BIT_SUPPORTED - else - { - /* This converts from AAGG to GGAA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - png_byte save[2]; - save[0] = *(sp++); - save[1] = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = save[0]; - *(dp++) = save[1]; - } - } -#endif /* PNG_WRITE_16BIT_SUPPORTED */ - } - } -} -#endif - -#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED -static void -png_do_write_invert_alpha(png_row_infop row_info, png_bytep row) -{ - png_debug(1, "in png_do_write_invert_alpha"); - - { - if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This inverts the alpha channel in RGBA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* Does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=3; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - -#ifdef PNG_WRITE_16BIT_SUPPORTED - else - { - /* This inverts the alpha channel in RRGGBBAA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* Does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=6; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } -#endif /* PNG_WRITE_16BIT_SUPPORTED */ - } - - else if (row_info->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - { - if (row_info->bit_depth == 8) - { - /* This inverts the alpha channel in GA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - *(dp++) = *(sp++); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } - -#ifdef PNG_WRITE_16BIT_SUPPORTED - else - { - /* This inverts the alpha channel in GGAA */ - png_bytep sp, dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - for (i = 0, sp = dp = row; i < row_width; i++) - { - /* Does nothing - *(dp++) = *(sp++); - *(dp++) = *(sp++); - */ - sp+=2; dp = sp; - *(dp++) = (png_byte)(255 - *(sp++)); - *(dp++) = (png_byte)(255 - *(sp++)); - } - } -#endif /* PNG_WRITE_16BIT_SUPPORTED */ - } - } -} -#endif - -/* Transform the data according to the user's wishes. The order of - * transformations is significant. - */ -void /* PRIVATE */ -png_do_write_transformations(png_structrp png_ptr, png_row_infop row_info) -{ - png_debug(1, "in png_do_write_transformations"); - - if (png_ptr == NULL) - return; - -#ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED - if (png_ptr->transformations & PNG_USER_TRANSFORM) - if (png_ptr->write_user_transform_fn != NULL) - (*(png_ptr->write_user_transform_fn)) /* User write transform - function */ - (png_ptr, /* png_ptr */ - row_info, /* row_info: */ - /* png_uint_32 width; width of row */ - /* png_size_t rowbytes; number of bytes in row */ - /* png_byte color_type; color type of pixels */ - /* png_byte bit_depth; bit depth of samples */ - /* png_byte channels; number of channels (1-4) */ - /* png_byte pixel_depth; bits per pixel (depth*channels) */ - png_ptr->row_buf + 1); /* start of pixel data for row */ -#endif - -#ifdef PNG_WRITE_FILLER_SUPPORTED - if (png_ptr->transformations & PNG_FILLER) - png_do_strip_channel(row_info, png_ptr->row_buf + 1, - !(png_ptr->flags & PNG_FLAG_FILLER_AFTER)); -#endif - -#ifdef PNG_WRITE_PACKSWAP_SUPPORTED - if (png_ptr->transformations & PNG_PACKSWAP) - png_do_packswap(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_WRITE_PACK_SUPPORTED - if (png_ptr->transformations & PNG_PACK) - png_do_pack(row_info, png_ptr->row_buf + 1, - (png_uint_32)png_ptr->bit_depth); -#endif - -#ifdef PNG_WRITE_SWAP_SUPPORTED - if (png_ptr->transformations & PNG_SWAP_BYTES) - png_do_swap(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_WRITE_SHIFT_SUPPORTED - if (png_ptr->transformations & PNG_SHIFT) - png_do_shift(row_info, png_ptr->row_buf + 1, - &(png_ptr->shift)); -#endif - -#ifdef PNG_WRITE_SWAP_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_SWAP_ALPHA) - png_do_write_swap_alpha(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_WRITE_INVERT_ALPHA_SUPPORTED - if (png_ptr->transformations & PNG_INVERT_ALPHA) - png_do_write_invert_alpha(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_WRITE_BGR_SUPPORTED - if (png_ptr->transformations & PNG_BGR) - png_do_bgr(row_info, png_ptr->row_buf + 1); -#endif - -#ifdef PNG_WRITE_INVERT_SUPPORTED - if (png_ptr->transformations & PNG_INVERT_MONO) - png_do_invert(row_info, png_ptr->row_buf + 1); -#endif -} -#endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */ -#endif /* PNG_WRITE_SUPPORTED */ diff --git a/png/pngwutil.c b/png/pngwutil.c deleted file mode 100755 index cfc3312..0000000 --- a/png/pngwutil.c +++ /dev/null @@ -1,3026 +0,0 @@ - -/* pngwutil.c - utilities to write a PNG file - * - * Last changed in libpng 1.6.11 [June 12, 2014] - * Copyright (c) 1998-2014 Glenn Randers-Pehrson - * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) - * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) - * - * This code is released under the libpng license. - * For conditions of distribution and use, see the disclaimer - * and license in png.h - */ - -#include "pngpriv.h" - -#ifdef PNG_WRITE_SUPPORTED - -#ifdef PNG_WRITE_INT_FUNCTIONS_SUPPORTED -/* Place a 32-bit number into a buffer in PNG byte order. We work - * with unsigned numbers for convenience, although one supported - * ancillary chunk uses signed (two's complement) numbers. - */ -void PNGAPI -png_save_uint_32(png_bytep buf, png_uint_32 i) -{ - buf[0] = (png_byte)((i >> 24) & 0xff); - buf[1] = (png_byte)((i >> 16) & 0xff); - buf[2] = (png_byte)((i >> 8) & 0xff); - buf[3] = (png_byte)(i & 0xff); -} - -/* Place a 16-bit number into a buffer in PNG byte order. - * The parameter is declared unsigned int, not png_uint_16, - * just to avoid potential problems on pre-ANSI C compilers. - */ -void PNGAPI -png_save_uint_16(png_bytep buf, unsigned int i) -{ - buf[0] = (png_byte)((i >> 8) & 0xff); - buf[1] = (png_byte)(i & 0xff); -} -#endif - -/* Simple function to write the signature. If we have already written - * the magic bytes of the signature, or more likely, the PNG stream is - * being embedded into another stream and doesn't need its own signature, - * we should call png_set_sig_bytes() to tell libpng how many of the - * bytes have already been written. - */ -void PNGAPI -png_write_sig(png_structrp png_ptr) -{ - png_byte png_signature[8] = {137, 80, 78, 71, 13, 10, 26, 10}; - -#ifdef PNG_IO_STATE_SUPPORTED - /* Inform the I/O callback that the signature is being written */ - png_ptr->io_state = PNG_IO_WRITING | PNG_IO_SIGNATURE; -#endif - - /* Write the rest of the 8 byte signature */ - png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes], - (png_size_t)(8 - png_ptr->sig_bytes)); - - if (png_ptr->sig_bytes < 3) - png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE; -} - -/* Write the start of a PNG chunk. The type is the chunk type. - * The total_length is the sum of the lengths of all the data you will be - * passing in png_write_chunk_data(). - */ -static void -png_write_chunk_header(png_structrp png_ptr, png_uint_32 chunk_name, - png_uint_32 length) -{ - png_byte buf[8]; - -#if defined(PNG_DEBUG) && (PNG_DEBUG > 0) - PNG_CSTRING_FROM_CHUNK(buf, chunk_name); - png_debug2(0, "Writing %s chunk, length = %lu", buf, (unsigned long)length); -#endif - - if (png_ptr == NULL) - return; - -#ifdef PNG_IO_STATE_SUPPORTED - /* Inform the I/O callback that the chunk header is being written. - * PNG_IO_CHUNK_HDR requires a single I/O call. - */ - png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_HDR; -#endif - - /* Write the length and the chunk name */ - png_save_uint_32(buf, length); - png_save_uint_32(buf + 4, chunk_name); - png_write_data(png_ptr, buf, 8); - - /* Put the chunk name into png_ptr->chunk_name */ - png_ptr->chunk_name = chunk_name; - - /* Reset the crc and run it over the chunk name */ - png_reset_crc(png_ptr); - - png_calculate_crc(png_ptr, buf + 4, 4); - -#ifdef PNG_IO_STATE_SUPPORTED - /* Inform the I/O callback that chunk data will (possibly) be written. - * PNG_IO_CHUNK_DATA does NOT require a specific number of I/O calls. - */ - png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_DATA; -#endif -} - -void PNGAPI -png_write_chunk_start(png_structrp png_ptr, png_const_bytep chunk_string, - png_uint_32 length) -{ - png_write_chunk_header(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), length); -} - -/* Write the data of a PNG chunk started with png_write_chunk_header(). - * Note that multiple calls to this function are allowed, and that the - * sum of the lengths from these calls *must* add up to the total_length - * given to png_write_chunk_header(). - */ -void PNGAPI -png_write_chunk_data(png_structrp png_ptr, png_const_bytep data, - png_size_t length) -{ - /* Write the data, and run the CRC over it */ - if (png_ptr == NULL) - return; - - if (data != NULL && length > 0) - { - png_write_data(png_ptr, data, length); - - /* Update the CRC after writing the data, - * in case that the user I/O routine alters it. - */ - png_calculate_crc(png_ptr, data, length); - } -} - -/* Finish a chunk started with png_write_chunk_header(). */ -void PNGAPI -png_write_chunk_end(png_structrp png_ptr) -{ - png_byte buf[4]; - - if (png_ptr == NULL) return; - -#ifdef PNG_IO_STATE_SUPPORTED - /* Inform the I/O callback that the chunk CRC is being written. - * PNG_IO_CHUNK_CRC requires a single I/O function call. - */ - png_ptr->io_state = PNG_IO_WRITING | PNG_IO_CHUNK_CRC; -#endif - - /* Write the crc in a single operation */ - png_save_uint_32(buf, png_ptr->crc); - - png_write_data(png_ptr, buf, (png_size_t)4); -} - -/* Write a PNG chunk all at once. The type is an array of ASCII characters - * representing the chunk name. The array must be at least 4 bytes in - * length, and does not need to be null terminated. To be safe, pass the - * pre-defined chunk names here, and if you need a new one, define it - * where the others are defined. The length is the length of the data. - * All the data must be present. If that is not possible, use the - * png_write_chunk_start(), png_write_chunk_data(), and png_write_chunk_end() - * functions instead. - */ -static void -png_write_complete_chunk(png_structrp png_ptr, png_uint_32 chunk_name, - png_const_bytep data, png_size_t length) -{ - if (png_ptr == NULL) - return; - - /* On 64 bit architectures 'length' may not fit in a png_uint_32. */ - if (length > PNG_UINT_31_MAX) - png_error(png_ptr, "length exceeds PNG maxima"); - - png_write_chunk_header(png_ptr, chunk_name, (png_uint_32)length); - png_write_chunk_data(png_ptr, data, length); - png_write_chunk_end(png_ptr); -} - -/* This is the API that calls the internal function above. */ -void PNGAPI -png_write_chunk(png_structrp png_ptr, png_const_bytep chunk_string, - png_const_bytep data, png_size_t length) -{ - png_write_complete_chunk(png_ptr, PNG_CHUNK_FROM_STRING(chunk_string), data, - length); -} - -/* This is used below to find the size of an image to pass to png_deflate_claim, - * so it only needs to be accurate if the size is less than 16384 bytes (the - * point at which a lower LZ window size can be used.) - */ -static png_alloc_size_t -png_image_size(png_structrp png_ptr) -{ - /* Only return sizes up to the maximum of a png_uint_32, do this by limiting - * the width and height used to 15 bits. - */ - png_uint_32 h = png_ptr->height; - - if (png_ptr->rowbytes < 32768 && h < 32768) - { - if (png_ptr->interlaced) - { - /* Interlacing makes the image larger because of the replication of - * both the filter byte and the padding to a byte boundary. - */ - png_uint_32 w = png_ptr->width; - unsigned int pd = png_ptr->pixel_depth; - png_alloc_size_t cb_base; - int pass; - - for (cb_base=0, pass=0; pass<=6; ++pass) - { - png_uint_32 pw = PNG_PASS_COLS(w, pass); - - if (pw > 0) - cb_base += (PNG_ROWBYTES(pd, pw)+1) * PNG_PASS_ROWS(h, pass); - } - - return cb_base; - } - - else - return (png_ptr->rowbytes+1) * h; - } - - else - return 0xffffffffU; -} - -#ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED - /* This is the code to hack the first two bytes of the deflate stream (the - * deflate header) to correct the windowBits value to match the actual data - * size. Note that the second argument is the *uncompressed* size but the - * first argument is the *compressed* data (and it must be deflate - * compressed.) - */ -static void -optimize_cmf(png_bytep data, png_alloc_size_t data_size) -{ - /* Optimize the CMF field in the zlib stream. The resultant zlib stream is - * still compliant to the stream specification. - */ - if (data_size <= 16384) /* else windowBits must be 15 */ - { - unsigned int z_cmf = data[0]; /* zlib compression method and flags */ - - if ((z_cmf & 0x0f) == 8 && (z_cmf & 0xf0) <= 0x70) - { - unsigned int z_cinfo; - unsigned int half_z_window_size; - - z_cinfo = z_cmf >> 4; - half_z_window_size = 1U << (z_cinfo + 7); - - if (data_size <= half_z_window_size) /* else no change */ - { - unsigned int tmp; - - do - { - half_z_window_size >>= 1; - --z_cinfo; - } - while (z_cinfo > 0 && data_size <= half_z_window_size); - - z_cmf = (z_cmf & 0x0f) | (z_cinfo << 4); - - data[0] = (png_byte)z_cmf; - tmp = data[1] & 0xe0; - tmp += 0x1f - ((z_cmf << 8) + tmp) % 0x1f; - data[1] = (png_byte)tmp; - } - } - } -} -#else -# define optimize_cmf(dp,dl) ((void)0) -#endif /* PNG_WRITE_OPTIMIZE_CMF_SUPPORTED */ - -/* Initialize the compressor for the appropriate type of compression. */ -static int -png_deflate_claim(png_structrp png_ptr, png_uint_32 owner, - png_alloc_size_t data_size) -{ - if (png_ptr->zowner != 0) - { - char msg[64]; - - PNG_STRING_FROM_CHUNK(msg, owner); - msg[4] = ':'; - msg[5] = ' '; - PNG_STRING_FROM_CHUNK(msg+6, png_ptr->zowner); - /* So the message that results is " using zstream"; this is an - * internal error, but is very useful for debugging. i18n requirements - * are minimal. - */ - (void)png_safecat(msg, (sizeof msg), 10, " using zstream"); -# if PNG_LIBPNG_BUILD_BASE_TYPE >= PNG_LIBPNG_BUILD_RC - png_warning(png_ptr, msg); - - /* Attempt sane error recovery */ - if (png_ptr->zowner == png_IDAT) /* don't steal from IDAT */ - { - png_ptr->zstream.msg = PNGZ_MSG_CAST("in use by IDAT"); - return Z_STREAM_ERROR; - } - - png_ptr->zowner = 0; -# else - png_error(png_ptr, msg); -# endif - } - - { - int level = png_ptr->zlib_level; - int method = png_ptr->zlib_method; - int windowBits = png_ptr->zlib_window_bits; - int memLevel = png_ptr->zlib_mem_level; - int strategy; /* set below */ - int ret; /* zlib return code */ - - if (owner == png_IDAT) - { - if (png_ptr->flags & PNG_FLAG_ZLIB_CUSTOM_STRATEGY) - strategy = png_ptr->zlib_strategy; - - else if (png_ptr->do_filter != PNG_FILTER_NONE) - strategy = PNG_Z_DEFAULT_STRATEGY; - - else - strategy = PNG_Z_DEFAULT_NOFILTER_STRATEGY; - } - - else - { -# ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED - level = png_ptr->zlib_text_level; - method = png_ptr->zlib_text_method; - windowBits = png_ptr->zlib_text_window_bits; - memLevel = png_ptr->zlib_text_mem_level; - strategy = png_ptr->zlib_text_strategy; -# else - /* If customization is not supported the values all come from the - * IDAT values except for the strategy, which is fixed to the - * default. (This is the pre-1.6.0 behavior too, although it was - * implemented in a very different way.) - */ - strategy = Z_DEFAULT_STRATEGY; -# endif - } - - /* Adjust 'windowBits' down if larger than 'data_size'; to stop this - * happening just pass 32768 as the data_size parameter. Notice that zlib - * requires an extra 262 bytes in the window in addition to the data to be - * able to see the whole of the data, so if data_size+262 takes us to the - * next windowBits size we need to fix up the value later. (Because even - * though deflate needs the extra window, inflate does not!) - */ - if (data_size <= 16384) - { - /* IMPLEMENTATION NOTE: this 'half_window_size' stuff is only here to - * work round a Microsoft Visual C misbehavior which, contrary to C-90, - * widens the result of the following shift to 64-bits if (and, - * apparently, only if) it is used in a test. - */ - unsigned int half_window_size = 1U << (windowBits-1); - - while (data_size + 262 <= half_window_size) - { - half_window_size >>= 1; - --windowBits; - } - } - - /* Check against the previous initialized values, if any. */ - if ((png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) && - (png_ptr->zlib_set_level != level || - png_ptr->zlib_set_method != method || - png_ptr->zlib_set_window_bits != windowBits || - png_ptr->zlib_set_mem_level != memLevel || - png_ptr->zlib_set_strategy != strategy)) - { - if (deflateEnd(&png_ptr->zstream) != Z_OK) - png_warning(png_ptr, "deflateEnd failed (ignored)"); - - png_ptr->flags &= ~PNG_FLAG_ZSTREAM_INITIALIZED; - } - - /* For safety clear out the input and output pointers (currently zlib - * doesn't use them on Init, but it might in the future). - */ - png_ptr->zstream.next_in = NULL; - png_ptr->zstream.avail_in = 0; - png_ptr->zstream.next_out = NULL; - png_ptr->zstream.avail_out = 0; - - /* Now initialize if required, setting the new parameters, otherwise just - * to a simple reset to the previous parameters. - */ - if (png_ptr->flags & PNG_FLAG_ZSTREAM_INITIALIZED) - ret = deflateReset(&png_ptr->zstream); - - else - { - ret = deflateInit2(&png_ptr->zstream, level, method, windowBits, - memLevel, strategy); - - if (ret == Z_OK) - png_ptr->flags |= PNG_FLAG_ZSTREAM_INITIALIZED; - } - - /* The return code is from either deflateReset or deflateInit2; they have - * pretty much the same set of error codes. - */ - if (ret == Z_OK) - png_ptr->zowner = owner; - - else - png_zstream_error(png_ptr, ret); - - return ret; - } -} - -/* Clean up (or trim) a linked list of compression buffers. */ -void /* PRIVATE */ -png_free_buffer_list(png_structrp png_ptr, png_compression_bufferp *listp) -{ - png_compression_bufferp list = *listp; - - if (list != NULL) - { - *listp = NULL; - - do - { - png_compression_bufferp next = list->next; - - png_free(png_ptr, list); - list = next; - } - while (list != NULL); - } -} - -#ifdef PNG_WRITE_COMPRESSED_TEXT_SUPPORTED -/* This pair of functions encapsulates the operation of (a) compressing a - * text string, and (b) issuing it later as a series of chunk data writes. - * The compression_state structure is shared context for these functions - * set up by the caller to allow access to the relevant local variables. - * - * compression_buffer (new in 1.6.0) is just a linked list of zbuffer_size - * temporary buffers. From 1.6.0 it is retained in png_struct so that it will - * be correctly freed in the event of a write error (previous implementations - * just leaked memory.) - */ -typedef struct -{ - png_const_bytep input; /* The uncompressed input data */ - png_alloc_size_t input_len; /* Its length */ - png_uint_32 output_len; /* Final compressed length */ - png_byte output[1024]; /* First block of output */ -} compression_state; - -static void -png_text_compress_init(compression_state *comp, png_const_bytep input, - png_alloc_size_t input_len) -{ - comp->input = input; - comp->input_len = input_len; - comp->output_len = 0; -} - -/* Compress the data in the compression state input */ -static int -png_text_compress(png_structrp png_ptr, png_uint_32 chunk_name, - compression_state *comp, png_uint_32 prefix_len) -{ - int ret; - - /* To find the length of the output it is necessary to first compress the - * input, the result is buffered rather than using the two-pass algorithm - * that is used on the inflate side; deflate is assumed to be slower and a - * PNG writer is assumed to have more memory available than a PNG reader. - * - * IMPLEMENTATION NOTE: the zlib API deflateBound() can be used to find an - * upper limit on the output size, but it is always bigger than the input - * size so it is likely to be more efficient to use this linked-list - * approach. - */ - ret = png_deflate_claim(png_ptr, chunk_name, comp->input_len); - - if (ret != Z_OK) - return ret; - - /* Set up the compression buffers, we need a loop here to avoid overflowing a - * uInt. Use ZLIB_IO_MAX to limit the input. The output is always limited - * by the output buffer size, so there is no need to check that. Since this - * is ANSI-C we know that an 'int', hence a uInt, is always at least 16 bits - * in size. - */ - { - png_compression_bufferp *end = &png_ptr->zbuffer_list; - png_alloc_size_t input_len = comp->input_len; /* may be zero! */ - png_uint_32 output_len; - - /* zlib updates these for us: */ - png_ptr->zstream.next_in = PNGZ_INPUT_CAST(comp->input); - png_ptr->zstream.avail_in = 0; /* Set below */ - png_ptr->zstream.next_out = comp->output; - png_ptr->zstream.avail_out = (sizeof comp->output); - - output_len = png_ptr->zstream.avail_out; - - do - { - uInt avail_in = ZLIB_IO_MAX; - - if (avail_in > input_len) - avail_in = (uInt)input_len; - - input_len -= avail_in; - - png_ptr->zstream.avail_in = avail_in; - - if (png_ptr->zstream.avail_out == 0) - { - png_compression_buffer *next; - - /* Chunk data is limited to 2^31 bytes in length, so the prefix - * length must be counted here. - */ - if (output_len + prefix_len > PNG_UINT_31_MAX) - { - ret = Z_MEM_ERROR; - break; - } - - /* Need a new (malloc'ed) buffer, but there may be one present - * already. - */ - next = *end; - if (next == NULL) - { - next = png_voidcast(png_compression_bufferp, png_malloc_base - (png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); - - if (next == NULL) - { - ret = Z_MEM_ERROR; - break; - } - - /* Link in this buffer (so that it will be freed later) */ - next->next = NULL; - *end = next; - } - - png_ptr->zstream.next_out = next->output; - png_ptr->zstream.avail_out = png_ptr->zbuffer_size; - output_len += png_ptr->zstream.avail_out; - - /* Move 'end' to the next buffer pointer. */ - end = &next->next; - } - - /* Compress the data */ - ret = deflate(&png_ptr->zstream, - input_len > 0 ? Z_NO_FLUSH : Z_FINISH); - - /* Claw back input data that was not consumed (because avail_in is - * reset above every time round the loop). - */ - input_len += png_ptr->zstream.avail_in; - png_ptr->zstream.avail_in = 0; /* safety */ - } - while (ret == Z_OK); - - /* There may be some space left in the last output buffer, this needs to - * be subtracted from output_len. - */ - output_len -= png_ptr->zstream.avail_out; - png_ptr->zstream.avail_out = 0; /* safety */ - comp->output_len = output_len; - - /* Now double check the output length, put in a custom message if it is - * too long. Otherwise ensure the z_stream::msg pointer is set to - * something. - */ - if (output_len + prefix_len >= PNG_UINT_31_MAX) - { - png_ptr->zstream.msg = PNGZ_MSG_CAST("compressed data too long"); - ret = Z_MEM_ERROR; - } - - else - png_zstream_error(png_ptr, ret); - - /* Reset zlib for another zTXt/iTXt or image data */ - png_ptr->zowner = 0; - - /* The only success case is Z_STREAM_END, input_len must be 0, if not this - * is an internal error. - */ - if (ret == Z_STREAM_END && input_len == 0) - { - /* Fix up the deflate header, if required */ - optimize_cmf(comp->output, comp->input_len); - - /* But Z_OK is returned, not Z_STREAM_END; this allows the claim - * function above to return Z_STREAM_END on an error (though it never - * does in the current versions of zlib.) - */ - return Z_OK; - } - - else - return ret; - } -} - -/* Ship the compressed text out via chunk writes */ -static void -png_write_compressed_data_out(png_structrp png_ptr, compression_state *comp) -{ - png_uint_32 output_len = comp->output_len; - png_const_bytep output = comp->output; - png_uint_32 avail = (sizeof comp->output); - png_compression_buffer *next = png_ptr->zbuffer_list; - - for (;;) - { - if (avail > output_len) - avail = output_len; - - png_write_chunk_data(png_ptr, output, avail); - - output_len -= avail; - - if (output_len == 0 || next == NULL) - break; - - avail = png_ptr->zbuffer_size; - output = next->output; - next = next->next; - } - - /* This is an internal error; 'next' must have been NULL! */ - if (output_len > 0) - png_error(png_ptr, "error writing ancillary chunked compressed data"); -} -#endif /* PNG_WRITE_COMPRESSED_TEXT_SUPPORTED */ - -#if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_pCAL_SUPPORTED) || \ - defined(PNG_WRITE_iCCP_SUPPORTED) || defined(PNG_WRITE_sPLT_SUPPORTED) -/* Check that the tEXt or zTXt keyword is valid per PNG 1.0 specification, - * and if invalid, correct the keyword rather than discarding the entire - * chunk. The PNG 1.0 specification requires keywords 1-79 characters in - * length, forbids leading or trailing whitespace, multiple internal spaces, - * and the non-break space (0x80) from ISO 8859-1. Returns keyword length. - * - * The 'new_key' buffer must be 80 characters in size (for the keyword plus a - * trailing '\0'). If this routine returns 0 then there was no keyword, or a - * valid one could not be generated, and the caller must png_error. - */ -static png_uint_32 -png_check_keyword(png_structrp png_ptr, png_const_charp key, png_bytep new_key) -{ - png_const_charp orig_key = key; - png_uint_32 key_len = 0; - int bad_character = 0; - int space = 1; - - png_debug(1, "in png_check_keyword"); - - if (key == NULL) - { - *new_key = 0; - return 0; - } - - while (*key && key_len < 79) - { - png_byte ch = (png_byte)(0xff & *key++); - - if ((ch > 32 && ch <= 126) || (ch >= 161 /*&& ch <= 255*/)) - *new_key++ = ch, ++key_len, space = 0; - - else if (space == 0) - { - /* A space or an invalid character when one wasn't seen immediately - * before; output just a space. - */ - *new_key++ = 32, ++key_len, space = 1; - - /* If the character was not a space then it is invalid. */ - if (ch != 32) - bad_character = ch; - } - - else if (bad_character == 0) - bad_character = ch; /* just skip it, record the first error */ - } - - if (key_len > 0 && space) /* trailing space */ - { - --key_len, --new_key; - if (bad_character == 0) - bad_character = 32; - } - - /* Terminate the keyword */ - *new_key = 0; - - if (key_len == 0) - return 0; - - /* Try to only output one warning per keyword: */ - if (*key) /* keyword too long */ - png_warning(png_ptr, "keyword truncated"); - - else if (bad_character != 0) - { - PNG_WARNING_PARAMETERS(p) - - png_warning_parameter(p, 1, orig_key); - png_warning_parameter_signed(p, 2, PNG_NUMBER_FORMAT_02x, bad_character); - - png_formatted_warning(png_ptr, p, "keyword \"@1\": bad character '0x@2'"); - } - - return key_len; -} -#endif - -/* Write the IHDR chunk, and update the png_struct with the necessary - * information. Note that the rest of this code depends upon this - * information being correct. - */ -void /* PRIVATE */ -png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height, - int bit_depth, int color_type, int compression_type, int filter_type, - int interlace_type) -{ - png_byte buf[13]; /* Buffer to store the IHDR info */ - - png_debug(1, "in png_write_IHDR"); - - /* Check that we have valid input data from the application info */ - switch (color_type) - { - case PNG_COLOR_TYPE_GRAY: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: -#ifdef PNG_WRITE_16BIT_SUPPORTED - case 16: -#endif - png_ptr->channels = 1; break; - - default: - png_error(png_ptr, - "Invalid bit depth for grayscale image"); - } - break; - - case PNG_COLOR_TYPE_RGB: -#ifdef PNG_WRITE_16BIT_SUPPORTED - if (bit_depth != 8 && bit_depth != 16) -#else - if (bit_depth != 8) -#endif - png_error(png_ptr, "Invalid bit depth for RGB image"); - - png_ptr->channels = 3; - break; - - case PNG_COLOR_TYPE_PALETTE: - switch (bit_depth) - { - case 1: - case 2: - case 4: - case 8: - png_ptr->channels = 1; - break; - - default: - png_error(png_ptr, "Invalid bit depth for paletted image"); - } - break; - - case PNG_COLOR_TYPE_GRAY_ALPHA: - if (bit_depth != 8 && bit_depth != 16) - png_error(png_ptr, "Invalid bit depth for grayscale+alpha image"); - - png_ptr->channels = 2; - break; - - case PNG_COLOR_TYPE_RGB_ALPHA: -#ifdef PNG_WRITE_16BIT_SUPPORTED - if (bit_depth != 8 && bit_depth != 16) -#else - if (bit_depth != 8) -#endif - png_error(png_ptr, "Invalid bit depth for RGBA image"); - - png_ptr->channels = 4; - break; - - default: - png_error(png_ptr, "Invalid image color type specified"); - } - - if (compression_type != PNG_COMPRESSION_TYPE_BASE) - { - png_warning(png_ptr, "Invalid compression type specified"); - compression_type = PNG_COMPRESSION_TYPE_BASE; - } - - /* Write filter_method 64 (intrapixel differencing) only if - * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and - * 2. Libpng did not write a PNG signature (this filter_method is only - * used in PNG datastreams that are embedded in MNG datastreams) and - * 3. The application called png_permit_mng_features with a mask that - * included PNG_FLAG_MNG_FILTER_64 and - * 4. The filter_method is 64 and - * 5. The color_type is RGB or RGBA - */ - if ( -#ifdef PNG_MNG_FEATURES_SUPPORTED - !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) && - ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) && - (color_type == PNG_COLOR_TYPE_RGB || - color_type == PNG_COLOR_TYPE_RGB_ALPHA) && - (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) && -#endif - filter_type != PNG_FILTER_TYPE_BASE) - { - png_warning(png_ptr, "Invalid filter type specified"); - filter_type = PNG_FILTER_TYPE_BASE; - } - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - if (interlace_type != PNG_INTERLACE_NONE && - interlace_type != PNG_INTERLACE_ADAM7) - { - png_warning(png_ptr, "Invalid interlace type specified"); - interlace_type = PNG_INTERLACE_ADAM7; - } -#else - interlace_type=PNG_INTERLACE_NONE; -#endif - - /* Save the relevent information */ - png_ptr->bit_depth = (png_byte)bit_depth; - png_ptr->color_type = (png_byte)color_type; - png_ptr->interlaced = (png_byte)interlace_type; -#ifdef PNG_MNG_FEATURES_SUPPORTED - png_ptr->filter_type = (png_byte)filter_type; -#endif - png_ptr->compression_type = (png_byte)compression_type; - png_ptr->width = width; - png_ptr->height = height; - - png_ptr->pixel_depth = (png_byte)(bit_depth * png_ptr->channels); - png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width); - /* Set the usr info, so any transformations can modify it */ - png_ptr->usr_width = png_ptr->width; - png_ptr->usr_bit_depth = png_ptr->bit_depth; - png_ptr->usr_channels = png_ptr->channels; - - /* Pack the header information into the buffer */ - png_save_uint_32(buf, width); - png_save_uint_32(buf + 4, height); - buf[8] = (png_byte)bit_depth; - buf[9] = (png_byte)color_type; - buf[10] = (png_byte)compression_type; - buf[11] = (png_byte)filter_type; - buf[12] = (png_byte)interlace_type; - - /* Write the chunk */ - png_write_complete_chunk(png_ptr, png_IHDR, buf, (png_size_t)13); - - if ((png_ptr->do_filter) == PNG_NO_FILTERS) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE || - png_ptr->bit_depth < 8) - png_ptr->do_filter = PNG_FILTER_NONE; - - else - png_ptr->do_filter = PNG_ALL_FILTERS; - } - - png_ptr->mode = PNG_HAVE_IHDR; /* not READY_FOR_ZTXT */ -} - -/* Write the palette. We are careful not to trust png_color to be in the - * correct order for PNG, so people can redefine it to any convenient - * structure. - */ -void /* PRIVATE */ -png_write_PLTE(png_structrp png_ptr, png_const_colorp palette, - png_uint_32 num_pal) -{ - png_uint_32 i; - png_const_colorp pal_ptr; - png_byte buf[3]; - - png_debug(1, "in png_write_PLTE"); - - if (( -#ifdef PNG_MNG_FEATURES_SUPPORTED - !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) && -#endif - num_pal == 0) || num_pal > 256) - { - if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE) - { - png_error(png_ptr, "Invalid number of colors in palette"); - } - - else - { - png_warning(png_ptr, "Invalid number of colors in palette"); - return; - } - } - - if (!(png_ptr->color_type&PNG_COLOR_MASK_COLOR)) - { - png_warning(png_ptr, - "Ignoring request to write a PLTE chunk in grayscale PNG"); - - return; - } - - png_ptr->num_palette = (png_uint_16)num_pal; - png_debug1(3, "num_palette = %d", png_ptr->num_palette); - - png_write_chunk_header(png_ptr, png_PLTE, (png_uint_32)(num_pal * 3)); -#ifdef PNG_POINTER_INDEXING_SUPPORTED - - for (i = 0, pal_ptr = palette; i < num_pal; i++, pal_ptr++) - { - buf[0] = pal_ptr->red; - buf[1] = pal_ptr->green; - buf[2] = pal_ptr->blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } - -#else - /* This is a little slower but some buggy compilers need to do this - * instead - */ - pal_ptr=palette; - - for (i = 0; i < num_pal; i++) - { - buf[0] = pal_ptr[i].red; - buf[1] = pal_ptr[i].green; - buf[2] = pal_ptr[i].blue; - png_write_chunk_data(png_ptr, buf, (png_size_t)3); - } - -#endif - png_write_chunk_end(png_ptr); - png_ptr->mode |= PNG_HAVE_PLTE; -} - -/* This is similar to png_text_compress, above, except that it does not require - * all of the data at once and, instead of buffering the compressed result, - * writes it as IDAT chunks. Unlike png_text_compress it *can* png_error out - * because it calls the write interface. As a result it does its own error - * reporting and does not return an error code. In the event of error it will - * just call png_error. The input data length may exceed 32-bits. The 'flush' - * parameter is exactly the same as that to deflate, with the following - * meanings: - * - * Z_NO_FLUSH: normal incremental output of compressed data - * Z_SYNC_FLUSH: do a SYNC_FLUSH, used by png_write_flush - * Z_FINISH: this is the end of the input, do a Z_FINISH and clean up - * - * The routine manages the acquire and release of the png_ptr->zstream by - * checking and (at the end) clearing png_ptr->zowner, it does some sanity - * checks on the 'mode' flags while doing this. - */ -void /* PRIVATE */ -png_compress_IDAT(png_structrp png_ptr, png_const_bytep input, - png_alloc_size_t input_len, int flush) -{ - if (png_ptr->zowner != png_IDAT) - { - /* First time. Ensure we have a temporary buffer for compression and - * trim the buffer list if it has more than one entry to free memory. - * If 'WRITE_COMPRESSED_TEXT' is not set the list will never have been - * created at this point, but the check here is quick and safe. - */ - if (png_ptr->zbuffer_list == NULL) - { - png_ptr->zbuffer_list = png_voidcast(png_compression_bufferp, - png_malloc(png_ptr, PNG_COMPRESSION_BUFFER_SIZE(png_ptr))); - png_ptr->zbuffer_list->next = NULL; - } - - else - png_free_buffer_list(png_ptr, &png_ptr->zbuffer_list->next); - - /* It is a terminal error if we can't claim the zstream. */ - if (png_deflate_claim(png_ptr, png_IDAT, png_image_size(png_ptr)) != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg); - - /* The output state is maintained in png_ptr->zstream, so it must be - * initialized here after the claim. - */ - png_ptr->zstream.next_out = png_ptr->zbuffer_list->output; - png_ptr->zstream.avail_out = png_ptr->zbuffer_size; - } - - /* Now loop reading and writing until all the input is consumed or an error - * terminates the operation. The _out values are maintained across calls to - * this function, but the input must be reset each time. - */ - png_ptr->zstream.next_in = PNGZ_INPUT_CAST(input); - png_ptr->zstream.avail_in = 0; /* set below */ - for (;;) - { - int ret; - - /* INPUT: from the row data */ - uInt avail = ZLIB_IO_MAX; - - if (avail > input_len) - avail = (uInt)input_len; /* safe because of the check */ - - png_ptr->zstream.avail_in = avail; - input_len -= avail; - - ret = deflate(&png_ptr->zstream, input_len > 0 ? Z_NO_FLUSH : flush); - - /* Include as-yet unconsumed input */ - input_len += png_ptr->zstream.avail_in; - png_ptr->zstream.avail_in = 0; - - /* OUTPUT: write complete IDAT chunks when avail_out drops to zero, note - * that these two zstream fields are preserved across the calls, therefore - * there is no need to set these up on entry to the loop. - */ - if (png_ptr->zstream.avail_out == 0) - { - png_bytep data = png_ptr->zbuffer_list->output; - uInt size = png_ptr->zbuffer_size; - - /* Write an IDAT containing the data then reset the buffer. The - * first IDAT may need deflate header optimization. - */ -# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED - if (!(png_ptr->mode & PNG_HAVE_IDAT) && - png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) - optimize_cmf(data, png_image_size(png_ptr)); -# endif - - png_write_complete_chunk(png_ptr, png_IDAT, data, size); - png_ptr->mode |= PNG_HAVE_IDAT; - - png_ptr->zstream.next_out = data; - png_ptr->zstream.avail_out = size; - - /* For SYNC_FLUSH or FINISH it is essential to keep calling zlib with - * the same flush parameter until it has finished output, for NO_FLUSH - * it doesn't matter. - */ - if (ret == Z_OK && flush != Z_NO_FLUSH) - continue; - } - - /* The order of these checks doesn't matter much; it just effect which - * possible error might be detected if multiple things go wrong at once. - */ - if (ret == Z_OK) /* most likely return code! */ - { - /* If all the input has been consumed then just return. If Z_FINISH - * was used as the flush parameter something has gone wrong if we get - * here. - */ - if (input_len == 0) - { - if (flush == Z_FINISH) - png_error(png_ptr, "Z_OK on Z_FINISH with output space"); - - return; - } - } - - else if (ret == Z_STREAM_END && flush == Z_FINISH) - { - /* This is the end of the IDAT data; any pending output must be - * flushed. For small PNG files we may still be at the beginning. - */ - png_bytep data = png_ptr->zbuffer_list->output; - uInt size = png_ptr->zbuffer_size - png_ptr->zstream.avail_out; - -# ifdef PNG_WRITE_OPTIMIZE_CMF_SUPPORTED - if (!(png_ptr->mode & PNG_HAVE_IDAT) && - png_ptr->compression_type == PNG_COMPRESSION_TYPE_BASE) - optimize_cmf(data, png_image_size(png_ptr)); -# endif - - png_write_complete_chunk(png_ptr, png_IDAT, data, size); - png_ptr->zstream.avail_out = 0; - png_ptr->zstream.next_out = NULL; - png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT; - - png_ptr->zowner = 0; /* Release the stream */ - return; - } - - else - { - /* This is an error condition. */ - png_zstream_error(png_ptr, ret); - png_error(png_ptr, png_ptr->zstream.msg); - } - } -} - -/* Write an IEND chunk */ -void /* PRIVATE */ -png_write_IEND(png_structrp png_ptr) -{ - png_debug(1, "in png_write_IEND"); - - png_write_complete_chunk(png_ptr, png_IEND, NULL, (png_size_t)0); - png_ptr->mode |= PNG_HAVE_IEND; -} - -#ifdef PNG_WRITE_gAMA_SUPPORTED -/* Write a gAMA chunk */ -void /* PRIVATE */ -png_write_gAMA_fixed(png_structrp png_ptr, png_fixed_point file_gamma) -{ - png_byte buf[4]; - - png_debug(1, "in png_write_gAMA"); - - /* file_gamma is saved in 1/100,000ths */ - png_save_uint_32(buf, (png_uint_32)file_gamma); - png_write_complete_chunk(png_ptr, png_gAMA, buf, (png_size_t)4); -} -#endif - -#ifdef PNG_WRITE_sRGB_SUPPORTED -/* Write a sRGB chunk */ -void /* PRIVATE */ -png_write_sRGB(png_structrp png_ptr, int srgb_intent) -{ - png_byte buf[1]; - - png_debug(1, "in png_write_sRGB"); - - if (srgb_intent >= PNG_sRGB_INTENT_LAST) - png_warning(png_ptr, - "Invalid sRGB rendering intent specified"); - - buf[0]=(png_byte)srgb_intent; - png_write_complete_chunk(png_ptr, png_sRGB, buf, (png_size_t)1); -} -#endif - -#ifdef PNG_WRITE_iCCP_SUPPORTED -/* Write an iCCP chunk */ -void /* PRIVATE */ -png_write_iCCP(png_structrp png_ptr, png_const_charp name, - png_const_bytep profile) -{ - png_uint_32 name_len; - png_uint_32 profile_len; - png_byte new_name[81]; /* 1 byte for the compression byte */ - compression_state comp; - png_uint_32 temp; - - png_debug(1, "in png_write_iCCP"); - - /* These are all internal problems: the profile should have been checked - * before when it was stored. - */ - if (profile == NULL) - png_error(png_ptr, "No profile for iCCP chunk"); /* internal error */ - - profile_len = png_get_uint_32(profile); - - if (profile_len < 132) - png_error(png_ptr, "ICC profile too short"); - - temp = (png_uint_32) (*(profile+8)); - if (temp > 3 && (profile_len & 0x03)) - png_error(png_ptr, "ICC profile length invalid (not a multiple of 4)"); - - { - png_uint_32 embedded_profile_len = png_get_uint_32(profile); - - if (profile_len != embedded_profile_len) - png_error(png_ptr, "Profile length does not match profile"); - } - - name_len = png_check_keyword(png_ptr, name, new_name); - - if (name_len == 0) - png_error(png_ptr, "iCCP: invalid keyword"); - - new_name[++name_len] = PNG_COMPRESSION_TYPE_BASE; - - /* Make sure we include the NULL after the name and the compression type */ - ++name_len; - - png_text_compress_init(&comp, profile, profile_len); - - /* Allow for keyword terminator and compression byte */ - if (png_text_compress(png_ptr, png_iCCP, &comp, name_len) != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg); - - png_write_chunk_header(png_ptr, png_iCCP, name_len + comp.output_len); - - png_write_chunk_data(png_ptr, new_name, name_len); - - png_write_compressed_data_out(png_ptr, &comp); - - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_sPLT_SUPPORTED -/* Write a sPLT chunk */ -void /* PRIVATE */ -png_write_sPLT(png_structrp png_ptr, png_const_sPLT_tp spalette) -{ - png_uint_32 name_len; - png_byte new_name[80]; - png_byte entrybuf[10]; - png_size_t entry_size = (spalette->depth == 8 ? 6 : 10); - png_size_t palette_size = entry_size * spalette->nentries; - png_sPLT_entryp ep; -#ifndef PNG_POINTER_INDEXING_SUPPORTED - int i; -#endif - - png_debug(1, "in png_write_sPLT"); - - name_len = png_check_keyword(png_ptr, spalette->name, new_name); - - if (name_len == 0) - png_error(png_ptr, "sPLT: invalid keyword"); - - /* Make sure we include the NULL after the name */ - png_write_chunk_header(png_ptr, png_sPLT, - (png_uint_32)(name_len + 2 + palette_size)); - - png_write_chunk_data(png_ptr, (png_bytep)new_name, - (png_size_t)(name_len + 1)); - - png_write_chunk_data(png_ptr, &spalette->depth, (png_size_t)1); - - /* Loop through each palette entry, writing appropriately */ -#ifdef PNG_POINTER_INDEXING_SUPPORTED - for (ep = spalette->entries; epentries + spalette->nentries; ep++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep->red; - entrybuf[1] = (png_byte)ep->green; - entrybuf[2] = (png_byte)ep->blue; - entrybuf[3] = (png_byte)ep->alpha; - png_save_uint_16(entrybuf + 4, ep->frequency); - } - - else - { - png_save_uint_16(entrybuf + 0, ep->red); - png_save_uint_16(entrybuf + 2, ep->green); - png_save_uint_16(entrybuf + 4, ep->blue); - png_save_uint_16(entrybuf + 6, ep->alpha); - png_save_uint_16(entrybuf + 8, ep->frequency); - } - - png_write_chunk_data(png_ptr, entrybuf, entry_size); - } -#else - ep=spalette->entries; - for (i = 0; i>spalette->nentries; i++) - { - if (spalette->depth == 8) - { - entrybuf[0] = (png_byte)ep[i].red; - entrybuf[1] = (png_byte)ep[i].green; - entrybuf[2] = (png_byte)ep[i].blue; - entrybuf[3] = (png_byte)ep[i].alpha; - png_save_uint_16(entrybuf + 4, ep[i].frequency); - } - - else - { - png_save_uint_16(entrybuf + 0, ep[i].red); - png_save_uint_16(entrybuf + 2, ep[i].green); - png_save_uint_16(entrybuf + 4, ep[i].blue); - png_save_uint_16(entrybuf + 6, ep[i].alpha); - png_save_uint_16(entrybuf + 8, ep[i].frequency); - } - - png_write_chunk_data(png_ptr, entrybuf, entry_size); - } -#endif - - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_sBIT_SUPPORTED -/* Write the sBIT chunk */ -void /* PRIVATE */ -png_write_sBIT(png_structrp png_ptr, png_const_color_8p sbit, int color_type) -{ - png_byte buf[4]; - png_size_t size; - - png_debug(1, "in png_write_sBIT"); - - /* Make sure we don't depend upon the order of PNG_COLOR_8 */ - if (color_type & PNG_COLOR_MASK_COLOR) - { - png_byte maxbits; - - maxbits = (png_byte)(color_type==PNG_COLOR_TYPE_PALETTE ? 8 : - png_ptr->usr_bit_depth); - - if (sbit->red == 0 || sbit->red > maxbits || - sbit->green == 0 || sbit->green > maxbits || - sbit->blue == 0 || sbit->blue > maxbits) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - - buf[0] = sbit->red; - buf[1] = sbit->green; - buf[2] = sbit->blue; - size = 3; - } - - else - { - if (sbit->gray == 0 || sbit->gray > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - - buf[0] = sbit->gray; - size = 1; - } - - if (color_type & PNG_COLOR_MASK_ALPHA) - { - if (sbit->alpha == 0 || sbit->alpha > png_ptr->usr_bit_depth) - { - png_warning(png_ptr, "Invalid sBIT depth specified"); - return; - } - - buf[size++] = sbit->alpha; - } - - png_write_complete_chunk(png_ptr, png_sBIT, buf, size); -} -#endif - -#ifdef PNG_WRITE_cHRM_SUPPORTED -/* Write the cHRM chunk */ -void /* PRIVATE */ -png_write_cHRM_fixed(png_structrp png_ptr, const png_xy *xy) -{ - png_byte buf[32]; - - png_debug(1, "in png_write_cHRM"); - - /* Each value is saved in 1/100,000ths */ - png_save_int_32(buf, xy->whitex); - png_save_int_32(buf + 4, xy->whitey); - - png_save_int_32(buf + 8, xy->redx); - png_save_int_32(buf + 12, xy->redy); - - png_save_int_32(buf + 16, xy->greenx); - png_save_int_32(buf + 20, xy->greeny); - - png_save_int_32(buf + 24, xy->bluex); - png_save_int_32(buf + 28, xy->bluey); - - png_write_complete_chunk(png_ptr, png_cHRM, buf, 32); -} -#endif - -#ifdef PNG_WRITE_tRNS_SUPPORTED -/* Write the tRNS chunk */ -void /* PRIVATE */ -png_write_tRNS(png_structrp png_ptr, png_const_bytep trans_alpha, - png_const_color_16p tran, int num_trans, int color_type) -{ - png_byte buf[6]; - - png_debug(1, "in png_write_tRNS"); - - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if (num_trans <= 0 || num_trans > (int)png_ptr->num_palette) - { - png_app_warning(png_ptr, - "Invalid number of transparent colors specified"); - return; - } - - /* Write the chunk out as it is */ - png_write_complete_chunk(png_ptr, png_tRNS, trans_alpha, - (png_size_t)num_trans); - } - - else if (color_type == PNG_COLOR_TYPE_GRAY) - { - /* One 16 bit value */ - if (tran->gray >= (1 << png_ptr->bit_depth)) - { - png_app_warning(png_ptr, - "Ignoring attempt to write tRNS chunk out-of-range for bit_depth"); - - return; - } - - png_save_uint_16(buf, tran->gray); - png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)2); - } - - else if (color_type == PNG_COLOR_TYPE_RGB) - { - /* Three 16 bit values */ - png_save_uint_16(buf, tran->red); - png_save_uint_16(buf + 2, tran->green); - png_save_uint_16(buf + 4, tran->blue); -#ifdef PNG_WRITE_16BIT_SUPPORTED - if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) -#else - if (buf[0] | buf[2] | buf[4]) -#endif - { - png_app_warning(png_ptr, - "Ignoring attempt to write 16-bit tRNS chunk when bit_depth is 8"); - return; - } - - png_write_complete_chunk(png_ptr, png_tRNS, buf, (png_size_t)6); - } - - else - { - png_app_warning(png_ptr, "Can't write tRNS with an alpha channel"); - } -} -#endif - -#ifdef PNG_WRITE_bKGD_SUPPORTED -/* Write the background chunk */ -void /* PRIVATE */ -png_write_bKGD(png_structrp png_ptr, png_const_color_16p back, int color_type) -{ - png_byte buf[6]; - - png_debug(1, "in png_write_bKGD"); - - if (color_type == PNG_COLOR_TYPE_PALETTE) - { - if ( -#ifdef PNG_MNG_FEATURES_SUPPORTED - (png_ptr->num_palette || - (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) && -#endif - back->index >= png_ptr->num_palette) - { - png_warning(png_ptr, "Invalid background palette index"); - return; - } - - buf[0] = back->index; - png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)1); - } - - else if (color_type & PNG_COLOR_MASK_COLOR) - { - png_save_uint_16(buf, back->red); - png_save_uint_16(buf + 2, back->green); - png_save_uint_16(buf + 4, back->blue); -#ifdef PNG_WRITE_16BIT_SUPPORTED - if (png_ptr->bit_depth == 8 && (buf[0] | buf[2] | buf[4])) -#else - if (buf[0] | buf[2] | buf[4]) -#endif - { - png_warning(png_ptr, - "Ignoring attempt to write 16-bit bKGD chunk when bit_depth is 8"); - - return; - } - - png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)6); - } - - else - { - if (back->gray >= (1 << png_ptr->bit_depth)) - { - png_warning(png_ptr, - "Ignoring attempt to write bKGD chunk out-of-range for bit_depth"); - - return; - } - - png_save_uint_16(buf, back->gray); - png_write_complete_chunk(png_ptr, png_bKGD, buf, (png_size_t)2); - } -} -#endif - -#ifdef PNG_WRITE_hIST_SUPPORTED -/* Write the histogram */ -void /* PRIVATE */ -png_write_hIST(png_structrp png_ptr, png_const_uint_16p hist, int num_hist) -{ - int i; - png_byte buf[3]; - - png_debug(1, "in png_write_hIST"); - - if (num_hist > (int)png_ptr->num_palette) - { - png_debug2(3, "num_hist = %d, num_palette = %d", num_hist, - png_ptr->num_palette); - - png_warning(png_ptr, "Invalid number of histogram entries specified"); - return; - } - - png_write_chunk_header(png_ptr, png_hIST, (png_uint_32)(num_hist * 2)); - - for (i = 0; i < num_hist; i++) - { - png_save_uint_16(buf, hist[i]); - png_write_chunk_data(png_ptr, buf, (png_size_t)2); - } - - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_tEXt_SUPPORTED -/* Write a tEXt chunk */ -void /* PRIVATE */ -png_write_tEXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, - png_size_t text_len) -{ - png_uint_32 key_len; - png_byte new_key[80]; - - png_debug(1, "in png_write_tEXt"); - - key_len = png_check_keyword(png_ptr, key, new_key); - - if (key_len == 0) - png_error(png_ptr, "tEXt: invalid keyword"); - - if (text == NULL || *text == '\0') - text_len = 0; - - else - text_len = strlen(text); - - if (text_len > PNG_UINT_31_MAX - (key_len+1)) - png_error(png_ptr, "tEXt: text too long"); - - /* Make sure we include the 0 after the key */ - png_write_chunk_header(png_ptr, png_tEXt, - (png_uint_32)/*checked above*/(key_len + text_len + 1)); - /* - * We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG will forbid them. - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - */ - png_write_chunk_data(png_ptr, new_key, key_len + 1); - - if (text_len != 0) - png_write_chunk_data(png_ptr, (png_const_bytep)text, text_len); - - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_zTXt_SUPPORTED -/* Write a compressed text chunk */ -void /* PRIVATE */ -png_write_zTXt(png_structrp png_ptr, png_const_charp key, png_const_charp text, - png_size_t text_len, int compression) -{ - png_uint_32 key_len; - png_byte new_key[81]; - compression_state comp; - - png_debug(1, "in png_write_zTXt"); - PNG_UNUSED(text_len) /* Always use strlen */ - - if (compression == PNG_TEXT_COMPRESSION_NONE) - { - png_write_tEXt(png_ptr, key, text, 0); - return; - } - - if (compression != PNG_TEXT_COMPRESSION_zTXt) - png_error(png_ptr, "zTXt: invalid compression type"); - - key_len = png_check_keyword(png_ptr, key, new_key); - - if (key_len == 0) - png_error(png_ptr, "zTXt: invalid keyword"); - - /* Add the compression method and 1 for the keyword separator. */ - new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE; - ++key_len; - - /* Compute the compressed data; do it now for the length */ - png_text_compress_init(&comp, (png_const_bytep)text, - text == NULL ? 0 : strlen(text)); - - if (png_text_compress(png_ptr, png_zTXt, &comp, key_len) != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg); - - /* Write start of chunk */ - png_write_chunk_header(png_ptr, png_zTXt, key_len + comp.output_len); - - /* Write key */ - png_write_chunk_data(png_ptr, new_key, key_len); - - /* Write the compressed data */ - png_write_compressed_data_out(png_ptr, &comp); - - /* Close the chunk */ - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_iTXt_SUPPORTED -/* Write an iTXt chunk */ -void /* PRIVATE */ -png_write_iTXt(png_structrp png_ptr, int compression, png_const_charp key, - png_const_charp lang, png_const_charp lang_key, png_const_charp text) -{ - png_uint_32 key_len, prefix_len; - png_size_t lang_len, lang_key_len; - png_byte new_key[82]; - compression_state comp; - - png_debug(1, "in png_write_iTXt"); - - key_len = png_check_keyword(png_ptr, key, new_key); - - if (key_len == 0) - png_error(png_ptr, "iTXt: invalid keyword"); - - /* Set the compression flag */ - switch (compression) - { - case PNG_ITXT_COMPRESSION_NONE: - case PNG_TEXT_COMPRESSION_NONE: - compression = new_key[++key_len] = 0; /* no compression */ - break; - - case PNG_TEXT_COMPRESSION_zTXt: - case PNG_ITXT_COMPRESSION_zTXt: - compression = new_key[++key_len] = 1; /* compressed */ - break; - - default: - png_error(png_ptr, "iTXt: invalid compression"); - } - - new_key[++key_len] = PNG_COMPRESSION_TYPE_BASE; - ++key_len; /* for the keywod separator */ - - /* We leave it to the application to meet PNG-1.0 requirements on the - * contents of the text. PNG-1.0 through PNG-1.2 discourage the use of - * any non-Latin-1 characters except for NEWLINE. ISO PNG, however, - * specifies that the text is UTF-8 and this really doesn't require any - * checking. - * - * The NUL character is forbidden by PNG-1.0 through PNG-1.2 and ISO PNG. - * - * TODO: validate the language tag correctly (see the spec.) - */ - if (lang == NULL) lang = ""; /* empty language is valid */ - lang_len = strlen(lang)+1; - if (lang_key == NULL) lang_key = ""; /* may be empty */ - lang_key_len = strlen(lang_key)+1; - if (text == NULL) text = ""; /* may be empty */ - - prefix_len = key_len; - if (lang_len > PNG_UINT_31_MAX-prefix_len) - prefix_len = PNG_UINT_31_MAX; - else - prefix_len = (png_uint_32)(prefix_len + lang_len); - - if (lang_key_len > PNG_UINT_31_MAX-prefix_len) - prefix_len = PNG_UINT_31_MAX; - else - prefix_len = (png_uint_32)(prefix_len + lang_key_len); - - png_text_compress_init(&comp, (png_const_bytep)text, strlen(text)); - - if (compression != 0) - { - if (png_text_compress(png_ptr, png_iTXt, &comp, prefix_len) != Z_OK) - png_error(png_ptr, png_ptr->zstream.msg); - } - - else - { - if (comp.input_len > PNG_UINT_31_MAX-prefix_len) - png_error(png_ptr, "iTXt: uncompressed text too long"); - - /* So the string will fit in a chunk: */ - comp.output_len = (png_uint_32)/*SAFE*/comp.input_len; - } - - png_write_chunk_header(png_ptr, png_iTXt, comp.output_len + prefix_len); - - png_write_chunk_data(png_ptr, new_key, key_len); - - png_write_chunk_data(png_ptr, (png_const_bytep)lang, lang_len); - - png_write_chunk_data(png_ptr, (png_const_bytep)lang_key, lang_key_len); - - if (compression != 0) - png_write_compressed_data_out(png_ptr, &comp); - - else - png_write_chunk_data(png_ptr, (png_const_bytep)text, comp.input_len); - - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_oFFs_SUPPORTED -/* Write the oFFs chunk */ -void /* PRIVATE */ -png_write_oFFs(png_structrp png_ptr, png_int_32 x_offset, png_int_32 y_offset, - int unit_type) -{ - png_byte buf[9]; - - png_debug(1, "in png_write_oFFs"); - - if (unit_type >= PNG_OFFSET_LAST) - png_warning(png_ptr, "Unrecognized unit type for oFFs chunk"); - - png_save_int_32(buf, x_offset); - png_save_int_32(buf + 4, y_offset); - buf[8] = (png_byte)unit_type; - - png_write_complete_chunk(png_ptr, png_oFFs, buf, (png_size_t)9); -} -#endif -#ifdef PNG_WRITE_pCAL_SUPPORTED -/* Write the pCAL chunk (described in the PNG extensions document) */ -void /* PRIVATE */ -png_write_pCAL(png_structrp png_ptr, png_charp purpose, png_int_32 X0, - png_int_32 X1, int type, int nparams, png_const_charp units, - png_charpp params) -{ - png_uint_32 purpose_len; - png_size_t units_len, total_len; - png_size_tp params_len; - png_byte buf[10]; - png_byte new_purpose[80]; - int i; - - png_debug1(1, "in png_write_pCAL (%d parameters)", nparams); - - if (type >= PNG_EQUATION_LAST) - png_error(png_ptr, "Unrecognized equation type for pCAL chunk"); - - purpose_len = png_check_keyword(png_ptr, purpose, new_purpose); - - if (purpose_len == 0) - png_error(png_ptr, "pCAL: invalid keyword"); - - ++purpose_len; /* terminator */ - - png_debug1(3, "pCAL purpose length = %d", (int)purpose_len); - units_len = strlen(units) + (nparams == 0 ? 0 : 1); - png_debug1(3, "pCAL units length = %d", (int)units_len); - total_len = purpose_len + units_len + 10; - - params_len = (png_size_tp)png_malloc(png_ptr, - (png_alloc_size_t)(nparams * (sizeof (png_size_t)))); - - /* Find the length of each parameter, making sure we don't count the - * null terminator for the last parameter. - */ - for (i = 0; i < nparams; i++) - { - params_len[i] = strlen(params[i]) + (i == nparams - 1 ? 0 : 1); - png_debug2(3, "pCAL parameter %d length = %lu", i, - (unsigned long)params_len[i]); - total_len += params_len[i]; - } - - png_debug1(3, "pCAL total length = %d", (int)total_len); - png_write_chunk_header(png_ptr, png_pCAL, (png_uint_32)total_len); - png_write_chunk_data(png_ptr, new_purpose, purpose_len); - png_save_int_32(buf, X0); - png_save_int_32(buf + 4, X1); - buf[8] = (png_byte)type; - buf[9] = (png_byte)nparams; - png_write_chunk_data(png_ptr, buf, (png_size_t)10); - png_write_chunk_data(png_ptr, (png_const_bytep)units, (png_size_t)units_len); - - for (i = 0; i < nparams; i++) - { - png_write_chunk_data(png_ptr, (png_const_bytep)params[i], params_len[i]); - } - - png_free(png_ptr, params_len); - png_write_chunk_end(png_ptr); -} -#endif - -#ifdef PNG_WRITE_sCAL_SUPPORTED -/* Write the sCAL chunk */ -void /* PRIVATE */ -png_write_sCAL_s(png_structrp png_ptr, int unit, png_const_charp width, - png_const_charp height) -{ - png_byte buf[64]; - png_size_t wlen, hlen, total_len; - - png_debug(1, "in png_write_sCAL_s"); - - wlen = strlen(width); - hlen = strlen(height); - total_len = wlen + hlen + 2; - - if (total_len > 64) - { - png_warning(png_ptr, "Can't write sCAL (buffer too small)"); - return; - } - - buf[0] = (png_byte)unit; - memcpy(buf + 1, width, wlen + 1); /* Append the '\0' here */ - memcpy(buf + wlen + 2, height, hlen); /* Do NOT append the '\0' here */ - - png_debug1(3, "sCAL total length = %u", (unsigned int)total_len); - png_write_complete_chunk(png_ptr, png_sCAL, buf, total_len); -} -#endif - -#ifdef PNG_WRITE_pHYs_SUPPORTED -/* Write the pHYs chunk */ -void /* PRIVATE */ -png_write_pHYs(png_structrp png_ptr, png_uint_32 x_pixels_per_unit, - png_uint_32 y_pixels_per_unit, - int unit_type) -{ - png_byte buf[9]; - - png_debug(1, "in png_write_pHYs"); - - if (unit_type >= PNG_RESOLUTION_LAST) - png_warning(png_ptr, "Unrecognized unit type for pHYs chunk"); - - png_save_uint_32(buf, x_pixels_per_unit); - png_save_uint_32(buf + 4, y_pixels_per_unit); - buf[8] = (png_byte)unit_type; - - png_write_complete_chunk(png_ptr, png_pHYs, buf, (png_size_t)9); -} -#endif - -#ifdef PNG_WRITE_tIME_SUPPORTED -/* Write the tIME chunk. Use either png_convert_from_struct_tm() - * or png_convert_from_time_t(), or fill in the structure yourself. - */ -void /* PRIVATE */ -png_write_tIME(png_structrp png_ptr, png_const_timep mod_time) -{ - png_byte buf[7]; - - png_debug(1, "in png_write_tIME"); - - if (mod_time->month > 12 || mod_time->month < 1 || - mod_time->day > 31 || mod_time->day < 1 || - mod_time->hour > 23 || mod_time->second > 60) - { - png_warning(png_ptr, "Invalid time specified for tIME chunk"); - return; - } - - png_save_uint_16(buf, mod_time->year); - buf[2] = mod_time->month; - buf[3] = mod_time->day; - buf[4] = mod_time->hour; - buf[5] = mod_time->minute; - buf[6] = mod_time->second; - - png_write_complete_chunk(png_ptr, png_tIME, buf, (png_size_t)7); -} -#endif - -/* Initializes the row writing capability of libpng */ -void /* PRIVATE */ -png_write_start_row(png_structrp png_ptr) -{ -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* Start of interlace block in the y direction */ - static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* Offset to next interlace block in the y direction */ - static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - png_alloc_size_t buf_size; - int usr_pixel_depth; - - png_debug(1, "in png_write_start_row"); - - usr_pixel_depth = png_ptr->usr_channels * png_ptr->usr_bit_depth; - buf_size = PNG_ROWBYTES(usr_pixel_depth, png_ptr->width) + 1; - - /* 1.5.6: added to allow checking in the row write code. */ - png_ptr->transformed_pixel_depth = png_ptr->pixel_depth; - png_ptr->maximum_pixel_depth = (png_byte)usr_pixel_depth; - - /* Set up row buffer */ - png_ptr->row_buf = (png_bytep)png_malloc(png_ptr, buf_size); - - png_ptr->row_buf[0] = PNG_FILTER_VALUE_NONE; - -#ifdef PNG_WRITE_FILTER_SUPPORTED - /* Set up filtering buffer, if using this filter */ - if (png_ptr->do_filter & PNG_FILTER_SUB) - { - png_ptr->sub_row = (png_bytep)png_malloc(png_ptr, png_ptr->rowbytes + 1); - - png_ptr->sub_row[0] = PNG_FILTER_VALUE_SUB; - } - - /* We only need to keep the previous row if we are using one of these. */ - if (png_ptr->do_filter & (PNG_FILTER_AVG | PNG_FILTER_UP | PNG_FILTER_PAETH)) - { - /* Set up previous row buffer */ - png_ptr->prev_row = (png_bytep)png_calloc(png_ptr, buf_size); - - if (png_ptr->do_filter & PNG_FILTER_UP) - { - png_ptr->up_row = (png_bytep)png_malloc(png_ptr, - png_ptr->rowbytes + 1); - - png_ptr->up_row[0] = PNG_FILTER_VALUE_UP; - } - - if (png_ptr->do_filter & PNG_FILTER_AVG) - { - png_ptr->avg_row = (png_bytep)png_malloc(png_ptr, - png_ptr->rowbytes + 1); - - png_ptr->avg_row[0] = PNG_FILTER_VALUE_AVG; - } - - if (png_ptr->do_filter & PNG_FILTER_PAETH) - { - png_ptr->paeth_row = (png_bytep)png_malloc(png_ptr, - png_ptr->rowbytes + 1); - - png_ptr->paeth_row[0] = PNG_FILTER_VALUE_PAETH; - } - } -#endif /* PNG_WRITE_FILTER_SUPPORTED */ - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* If interlaced, we need to set up width and height of pass */ - if (png_ptr->interlaced) - { - if (!(png_ptr->transformations & PNG_INTERLACE)) - { - png_ptr->num_rows = (png_ptr->height + png_pass_yinc[0] - 1 - - png_pass_ystart[0]) / png_pass_yinc[0]; - - png_ptr->usr_width = (png_ptr->width + png_pass_inc[0] - 1 - - png_pass_start[0]) / png_pass_inc[0]; - } - - else - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } - } - - else -#endif - { - png_ptr->num_rows = png_ptr->height; - png_ptr->usr_width = png_ptr->width; - } -} - -/* Internal use only. Called when finished processing a row of data. */ -void /* PRIVATE */ -png_write_finish_row(png_structrp png_ptr) -{ -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - /* Start of interlace block in the y direction */ - static PNG_CONST png_byte png_pass_ystart[7] = {0, 0, 4, 0, 2, 0, 1}; - - /* Offset to next interlace block in the y direction */ - static PNG_CONST png_byte png_pass_yinc[7] = {8, 8, 8, 4, 4, 2, 2}; -#endif - - png_debug(1, "in png_write_finish_row"); - - /* Next row */ - png_ptr->row_number++; - - /* See if we are done */ - if (png_ptr->row_number < png_ptr->num_rows) - return; - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED - /* If interlaced, go to next pass */ - if (png_ptr->interlaced) - { - png_ptr->row_number = 0; - if (png_ptr->transformations & PNG_INTERLACE) - { - png_ptr->pass++; - } - - else - { - /* Loop until we find a non-zero width or height pass */ - do - { - png_ptr->pass++; - - if (png_ptr->pass >= 7) - break; - - png_ptr->usr_width = (png_ptr->width + - png_pass_inc[png_ptr->pass] - 1 - - png_pass_start[png_ptr->pass]) / - png_pass_inc[png_ptr->pass]; - - png_ptr->num_rows = (png_ptr->height + - png_pass_yinc[png_ptr->pass] - 1 - - png_pass_ystart[png_ptr->pass]) / - png_pass_yinc[png_ptr->pass]; - - if (png_ptr->transformations & PNG_INTERLACE) - break; - - } while (png_ptr->usr_width == 0 || png_ptr->num_rows == 0); - - } - - /* Reset the row above the image for the next pass */ - if (png_ptr->pass < 7) - { - if (png_ptr->prev_row != NULL) - memset(png_ptr->prev_row, 0, - (png_size_t)(PNG_ROWBYTES(png_ptr->usr_channels* - png_ptr->usr_bit_depth, png_ptr->width)) + 1); - - return; - } - } -#endif - - /* If we get here, we've just written the last row, so we need - to flush the compressor */ - png_compress_IDAT(png_ptr, NULL, 0, Z_FINISH); -} - -#ifdef PNG_WRITE_INTERLACING_SUPPORTED -/* Pick out the correct pixels for the interlace pass. - * The basic idea here is to go through the row with a source - * pointer and a destination pointer (sp and dp), and copy the - * correct pixels for the pass. As the row gets compacted, - * sp will always be >= dp, so we should never overwrite anything. - * See the default: case for the easiest code to understand. - */ -void /* PRIVATE */ -png_do_write_interlace(png_row_infop row_info, png_bytep row, int pass) -{ - /* Arrays to facilitate easy interlacing - use pass (0 - 6) as index */ - - /* Start of interlace block */ - static PNG_CONST png_byte png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0}; - - /* Offset to next interlace block */ - static PNG_CONST png_byte png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1}; - - png_debug(1, "in png_do_write_interlace"); - - /* We don't have to do anything on the last pass (6) */ - if (pass < 6) - { - /* Each pixel depth is handled separately */ - switch (row_info->pixel_depth) - { - case 1: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - d = 0; - shift = 7; - - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 3); - value = (int)(*sp >> (7 - (int)(i & 0x07))) & 0x01; - d |= (value << shift); - - if (shift == 0) - { - shift = 7; - *dp++ = (png_byte)d; - d = 0; - } - - else - shift--; - - } - if (shift != 7) - *dp = (png_byte)d; - - break; - } - - case 2: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 6; - d = 0; - - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 2); - value = (*sp >> ((3 - (int)(i & 0x03)) << 1)) & 0x03; - d |= (value << shift); - - if (shift == 0) - { - shift = 6; - *dp++ = (png_byte)d; - d = 0; - } - - else - shift -= 2; - } - if (shift != 6) - *dp = (png_byte)d; - - break; - } - - case 4: - { - png_bytep sp; - png_bytep dp; - int shift; - int d; - int value; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - - dp = row; - shift = 4; - d = 0; - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - sp = row + (png_size_t)(i >> 1); - value = (*sp >> ((1 - (int)(i & 0x01)) << 2)) & 0x0f; - d |= (value << shift); - - if (shift == 0) - { - shift = 4; - *dp++ = (png_byte)d; - d = 0; - } - - else - shift -= 4; - } - if (shift != 4) - *dp = (png_byte)d; - - break; - } - - default: - { - png_bytep sp; - png_bytep dp; - png_uint_32 i; - png_uint_32 row_width = row_info->width; - png_size_t pixel_bytes; - - /* Start at the beginning */ - dp = row; - - /* Find out how many bytes each pixel takes up */ - pixel_bytes = (row_info->pixel_depth >> 3); - - /* Loop through the row, only looking at the pixels that matter */ - for (i = png_pass_start[pass]; i < row_width; - i += png_pass_inc[pass]) - { - /* Find out where the original pixel is */ - sp = row + (png_size_t)i * pixel_bytes; - - /* Move the pixel */ - if (dp != sp) - memcpy(dp, sp, pixel_bytes); - - /* Next pixel */ - dp += pixel_bytes; - } - break; - } - } - /* Set new row width */ - row_info->width = (row_info->width + - png_pass_inc[pass] - 1 - - png_pass_start[pass]) / - png_pass_inc[pass]; - - row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth, - row_info->width); - } -} -#endif - -/* This filters the row, chooses which filter to use, if it has not already - * been specified by the application, and then writes the row out with the - * chosen filter. - */ -static void -png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row, - png_size_t row_bytes); - -#define PNG_MAXSUM (((png_uint_32)(-1)) >> 1) -#define PNG_HISHIFT 10 -#define PNG_LOMASK ((png_uint_32)0xffffL) -#define PNG_HIMASK ((png_uint_32)(~PNG_LOMASK >> PNG_HISHIFT)) -void /* PRIVATE */ -png_write_find_filter(png_structrp png_ptr, png_row_infop row_info) -{ - png_bytep best_row; -#ifdef PNG_WRITE_FILTER_SUPPORTED - png_bytep prev_row, row_buf; - png_uint_32 mins, bpp; - png_byte filter_to_do = png_ptr->do_filter; - png_size_t row_bytes = row_info->rowbytes; -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - int num_p_filters = png_ptr->num_prev_filters; -#endif - - png_debug(1, "in png_write_find_filter"); - -#ifndef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->row_number == 0 && filter_to_do == PNG_ALL_FILTERS) - { - /* These will never be selected so we need not test them. */ - filter_to_do &= ~(PNG_FILTER_UP | PNG_FILTER_PAETH); - } -#endif - - /* Find out how many bytes offset each pixel is */ - bpp = (row_info->pixel_depth + 7) >> 3; - - prev_row = png_ptr->prev_row; -#endif - best_row = png_ptr->row_buf; -#ifdef PNG_WRITE_FILTER_SUPPORTED - row_buf = best_row; - mins = PNG_MAXSUM; - - /* The prediction method we use is to find which method provides the - * smallest value when summing the absolute values of the distances - * from zero, using anything >= 128 as negative numbers. This is known - * as the "minimum sum of absolute differences" heuristic. Other - * heuristics are the "weighted minimum sum of absolute differences" - * (experimental and can in theory improve compression), and the "zlib - * predictive" method (not implemented yet), which does test compressions - * of lines using different filter methods, and then chooses the - * (series of) filter(s) that give minimum compressed data size (VERY - * computationally expensive). - * - * GRR 980525: consider also - * - * (1) minimum sum of absolute differences from running average (i.e., - * keep running sum of non-absolute differences & count of bytes) - * [track dispersion, too? restart average if dispersion too large?] - * - * (1b) minimum sum of absolute differences from sliding average, probably - * with window size <= deflate window (usually 32K) - * - * (2) minimum sum of squared differences from zero or running average - * (i.e., ~ root-mean-square approach) - */ - - - /* We don't need to test the 'no filter' case if this is the only filter - * that has been chosen, as it doesn't actually do anything to the data. - */ - if ((filter_to_do & PNG_FILTER_NONE) && filter_to_do != PNG_FILTER_NONE) - { - png_bytep rp; - png_uint_32 sum = 0; - png_size_t i; - int v; - - for (i = 0, rp = row_buf + 1; i < row_bytes; i++, rp++) - { - v = *rp; - sum += (v < 128) ? v : 256 - v; - } - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - png_uint_32 sumhi, sumlo; - int j; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */ - - /* Reduce the sum if we match any of the previous rows */ - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - /* Factor in the cost of this filter (this is here for completeness, - * but it makes no sense to have a "cost" for the NONE filter, as - * it has the minimum possible computational cost - none). - */ - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - mins = sum; - } - - /* Sub filter */ - if (filter_to_do == PNG_FILTER_SUB) - /* It's the only filter so no testing is needed */ - { - png_bytep rp, lp, dp; - png_size_t i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - *dp = *rp; - } - - for (lp = row_buf + 1; i < row_bytes; - i++, rp++, lp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - } - - best_row = png_ptr->sub_row; - } - - else if (filter_to_do & PNG_FILTER_SUB) - { - png_bytep rp, dp, lp; - png_uint_32 sum = 0, lmins = mins; - png_size_t i; - int v; - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - /* We temporarily increase the "minimum sum" by the factor we - * would reduce the sum of this filter, so that we can do the - * early exit comparison without scaling the sum each time. - */ - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->sub_row + 1; i < bpp; - i++, rp++, dp++) - { - v = *dp = *rp; - - sum += (v < 128) ? v : 256 - v; - } - - for (lp = row_buf + 1; i < row_bytes; - i++, rp++, lp++, dp++) - { - v = *dp = (png_byte)(((int)*rp - (int)*lp) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_SUB) - { - sumlo = (sumlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->sub_row; - } - } - - /* Up filter */ - if (filter_to_do == PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_size_t i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; - i++, rp++, pp++, dp++) - { - *dp = (png_byte)(((int)*rp - (int)*pp) & 0xff); - } - - best_row = png_ptr->up_row; - } - - else if (filter_to_do & PNG_FILTER_UP) - { - png_bytep rp, dp, pp; - png_uint_32 sum = 0, lmins = mins; - png_size_t i; - int v; - - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->up_row + 1, - pp = prev_row + 1; i < row_bytes; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_UP) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->up_row; - } - } - - /* Avg filter */ - if (filter_to_do == PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - } - - for (lp = row_buf + 1; i < row_bytes; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) - & 0xff); - } - best_row = png_ptr->avg_row; - } - - else if (filter_to_do & PNG_FILTER_AVG) - { - png_bytep rp, dp, pp, lp; - png_uint_32 sum = 0, lmins = mins; - png_size_t i; - int v; - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_AVG) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->avg_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - ((int)*pp++ / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - - for (lp = row_buf + 1; i < row_bytes; i++) - { - v = *dp++ = - (png_byte)(((int)*rp++ - (((int)*pp++ + (int)*lp++) / 2)) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_NONE) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - mins = sum; - best_row = png_ptr->avg_row; - } - } - - /* Paeth filter */ - if (filter_to_do == PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_size_t i; - - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - - p = b - c; - pc = a - c; - -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; - - *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - } - best_row = png_ptr->paeth_row; - } - - else if (filter_to_do & PNG_FILTER_PAETH) - { - png_bytep rp, dp, pp, cp, lp; - png_uint_32 sum = 0, lmins = mins; - png_size_t i; - int v; - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 lmhi, lmlo; - lmlo = lmins & PNG_LOMASK; - lmhi = (lmins >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - lmlo = (lmlo * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - lmlo = (lmlo * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - lmhi = (lmhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (lmhi > PNG_HIMASK) - lmins = PNG_MAXSUM; - - else - lmins = (lmhi << PNG_HISHIFT) + lmlo; - } -#endif - - for (i = 0, rp = row_buf + 1, dp = png_ptr->paeth_row + 1, - pp = prev_row + 1; i < bpp; i++) - { - v = *dp++ = (png_byte)(((int)*rp++ - (int)*pp++) & 0xff); - - sum += (v < 128) ? v : 256 - v; - } - - for (lp = row_buf + 1, cp = prev_row + 1; i < row_bytes; i++) - { - int a, b, c, pa, pb, pc, p; - - b = *pp++; - c = *cp++; - a = *lp++; - -#ifndef PNG_SLOW_PAETH - p = b - c; - pc = a - c; -#ifdef PNG_USE_ABS - pa = abs(p); - pb = abs(pc); - pc = abs(p + pc); -#else - pa = p < 0 ? -p : p; - pb = pc < 0 ? -pc : pc; - pc = (p + pc) < 0 ? -(p + pc) : p + pc; -#endif - p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c; -#else /* PNG_SLOW_PAETH */ - p = a + b - c; - pa = abs(p - a); - pb = abs(p - b); - pc = abs(p - c); - - if (pa <= pb && pa <= pc) - p = a; - - else if (pb <= pc) - p = b; - - else - p = c; -#endif /* PNG_SLOW_PAETH */ - - v = *dp++ = (png_byte)(((int)*rp++ - p) & 0xff); - - sum += (v < 128) ? v : 256 - v; - - if (sum > lmins) /* We are already worse, don't continue. */ - break; - } - -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - if (png_ptr->heuristic_method == PNG_FILTER_HEURISTIC_WEIGHTED) - { - int j; - png_uint_32 sumhi, sumlo; - sumlo = sum & PNG_LOMASK; - sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; - - for (j = 0; j < num_p_filters; j++) - { - if (png_ptr->prev_filters[j] == PNG_FILTER_VALUE_PAETH) - { - sumlo = (sumlo * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - - sumhi = (sumhi * png_ptr->filter_weights[j]) >> - PNG_WEIGHT_SHIFT; - } - } - - sumlo = (sumlo * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >> - PNG_COST_SHIFT; - - if (sumhi > PNG_HIMASK) - sum = PNG_MAXSUM; - - else - sum = (sumhi << PNG_HISHIFT) + sumlo; - } -#endif - - if (sum < mins) - { - best_row = png_ptr->paeth_row; - } - } -#endif /* PNG_WRITE_FILTER_SUPPORTED */ - - /* Do the actual writing of the filtered row data from the chosen filter. */ - png_write_filtered_row(png_ptr, best_row, row_info->rowbytes+1); - -#ifdef PNG_WRITE_FILTER_SUPPORTED -#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED - /* Save the type of filter we picked this time for future calculations */ - if (png_ptr->num_prev_filters > 0) - { - int j; - - for (j = 1; j < num_p_filters; j++) - { - png_ptr->prev_filters[j] = png_ptr->prev_filters[j - 1]; - } - - png_ptr->prev_filters[j] = best_row[0]; - } -#endif -#endif /* PNG_WRITE_FILTER_SUPPORTED */ -} - - -/* Do the actual writing of a previously filtered row. */ -static void -png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row, - png_size_t full_row_length/*includes filter byte*/) -{ - png_debug(1, "in png_write_filtered_row"); - - png_debug1(2, "filter = %d", filtered_row[0]); - - png_compress_IDAT(png_ptr, filtered_row, full_row_length, Z_NO_FLUSH); - - /* Swap the current and previous rows */ - if (png_ptr->prev_row != NULL) - { - png_bytep tptr; - - tptr = png_ptr->prev_row; - png_ptr->prev_row = png_ptr->row_buf; - png_ptr->row_buf = tptr; - } - - /* Finish row - updates counters and flushes zlib if last row */ - png_write_finish_row(png_ptr); - -#ifdef 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a/target/simdlat.c b/target/simdlat.c old mode 100755 new mode 100644 diff --git a/target/simdlat.h b/target/simdlat.h old mode 100755 new mode 100644 diff --git a/target/simplat.c b/target/simplat.c old mode 100755 new mode 100644 diff --git a/target/simplat.h b/target/simplat.h old mode 100755 new mode 100644 diff --git a/target/targen.c b/target/targen.c old mode 100755 new mode 100644 diff --git a/target/targen.h b/target/targen.h old mode 100755 new mode 100644 diff --git a/tiff/COPYRIGHT b/tiff/COPYRIGHT deleted file mode 100755 index 8282186..0000000 --- a/tiff/COPYRIGHT +++ /dev/null @@ -1,21 +0,0 @@ -Copyright (c) 1988-1997 Sam Leffler -Copyright (c) 1991-1997 Silicon Graphics, Inc. - -Permission to use, copy, modify, distribute, and sell this software and -its documentation for any purpose is hereby granted without fee, provided -that (i) the above copyright notices and this permission notice appear in -all copies of the software and related documentation, and (ii) the names of -Sam Leffler and Silicon Graphics may not be used in any advertising or -publicity relating to the software without the specific, prior written -permission of Sam Leffler and Silicon Graphics. - -THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - -IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -OF THIS SOFTWARE. diff --git a/tiff/ChangeLog b/tiff/ChangeLog deleted file mode 100755 index 2e0cd9d..0000000 --- a/tiff/ChangeLog +++ /dev/null @@ -1,6255 +0,0 @@ -2015-01-26 Even Rouault - - * libtiff 4.0.4beta released - -2015-01-26 Even Rouault - - * automake: updated to 1.15 - * libtool: updated to 2.4.5 - -2015-01-22 Even Rouault - - * tools/tiff2pdf.c: Fix two crashes (oCERT-2014-013) - -2015-01-05 Frank Warmerdam - - * html/bugs.html: remove note about needing to email the tiff mailing - list administrator about being approved for membership, this appears - not to be true. - -2015-01-05 Olivier Paquet - - * tools/tiff2pdf.c: Fixed unsigned integer addition overflow detection. - -2015-01-03 Even Rouault - - * libtiff/tif_dirread.c: in TIFFCheckDirOffset(), avoid uint16 overflow - when reading more than 65535 directories, and effectively error out when - reaching that limit. - -2014-12-29 Even Rouault - - * libtiff/tif_jpeg.c: in JPEGFixupTags(), recognize SOF2, SOF9 and SOF10 - markers to avoid emitting a warning (even if, according to the TechNote, - there are admitedly unusual/not recommended or even forbidden variants, but - they do work well with libjpeg for SOF2, and with libjpeg-turbo for SOF2, - SOF9 and SOF10). - Define in_color_space and input_components to the right values in - JPEGSetupEncode(), before calling jpeg_set_defaults(), as specified by - libjpeg API documentation, so as to be compatible with mozjpeg library. - Note: the default settings of mozjpeg will produce progressive scans, which - is forbidden by the TechNote. - -2014-12-29 Even Rouault - - * libtiff/tif_getimage.c: move test on vertical value of YCbCr subsampling. - to avoid buffer leak (fix previous fix, found by Coverity scan) - -2014-12-29 Even Rouault - - * libtiff/tif_next.c: add new tests to check that we don't read outside of - the compressed input stream buffer. - - * libtiff/tif_getimage.c: in OJPEG case, fix checks on strile width/height - in the putcontig8bitYCbCr42tile, putcontig8bitYCbCr41tile and - putcontig8bitYCbCr21tile cases. - -2014-12-27 Even Rouault - - * libtiff/tif_dir.c: in TIFFDefaultDirectory(), reset any already existing - extented tags installed by user code through the extender mechaninm before - calling the extender callback (GDAL #5054) - -2014-12-26 Bob Friesenhahn - - * tools/tiffcrop.c: Fix warnings about variables set but not used. - - * contrib/iptcutil/iptcutil.c: Fix warnings about variables set - but not used. - - * tools/tiffgt.c: Fix warnings about unused parameters. - - * libtiff/tif_stream.cxx: Fix warnings about unused parameters. - -2014-12-25 Even Rouault - - * libtiff/tif_getimage.c, libtiff/tif_ojpeg.c, libtiff/tif_zip.c: fix - various typos found by Debian lintian tool (GDAL #5756) - -2014-12-24 Even Rouault - - * libtiff/tif_getimage.c: avoid divide by zero on invalid YCbCr subsampling. - http://bugzilla.maptools.org/show_bug.cgi?id=2235 - -2014-12-24 Even Rouault - - * tools/tiff2pdf.c: fix buffer overflow on some YCbCr JPEG compressed images. - http://bugzilla.maptools.org/show_bug.cgi?id=2445 - -2014-12-24 Even Rouault - - * tools/tiff2pdf.c: fix buffer overflow on YCbCr JPEG compressed image. - Derived from patch by Petr Gajdos, - http://bugzilla.maptools.org/show_bug.cgi?id=2443 - -2014-12-23 Even Rouault - - * libtiff/tif_dirread.c: In EstimateStripByteCounts(), check return code - of _TIFFFillStriles(). This solves crashing bug on corrupted - images generated by afl. - -2014-12-23 Even Rouault - - * libtiff/tif_read.c: fix several invalid comparisons of a uint64 value with - <= 0 by casting it to int64 first. This solves crashing bug on corrupted - images generated by afl. - -2014-12-21 Bob Friesenhahn - - * tools/tiffdump.c: Guard against arithmetic overflow when - calculating allocation buffer sizes. - -2014-12-21 Even Rouault - - * tools/tiff2bw.c: when Photometric=RGB, the utility only works if - SamplesPerPixel = 3. Enforce that - http://bugzilla.maptools.org/show_bug.cgi?id=2485 (CVE-2014-8127) - -2014-12-21 Even Rouault - - * tools/pal2rgb.c, tools/thumbnail.c: fix crash by disabling TIFFTAG_INKNAMES - copying. The right fix would be to properly copy it, but not worth the burden - for those esoteric utilities. - http://bugzilla.maptools.org/show_bug.cgi?id=2484 (CVE-2014-8127) - -2014-12-21 Even Rouault - - * tools/thumbnail.c: fix out-of-buffer write - http://bugzilla.maptools.org/show_bug.cgi?id=2489 (CVE-2014-8128) - -2014-12-21 Even Rouault - - * tools/thumbnail.c, tools/tiffcmp.c: only read/write TIFFTAG_GROUP3OPTIONS - or TIFFTAG_GROUP4OPTIONS if compression is COMPRESSION_CCITTFAX3 or - COMPRESSION_CCITTFAX4 - http://bugzilla.maptools.org/show_bug.cgi?id=2493 (CVE-2014-8128) - -2014-12-21 Even Rouault - - * libtiff/tif_next.c: check that BitsPerSample = 2. Fixes - http://bugzilla.maptools.org/show_bug.cgi?id=2487 (CVE-2014-8129) - -2014-12-21 Even Rouault - - * tools/tiff2pdf.c: check return code of TIFFGetField() when reading - TIFFTAG_SAMPLESPERPIXEL - -2014-12-21 Even Rouault - - * tools/tiffcp.c: fix crash when converting YCbCr JPEG-compressed to none. - Based on patch by Tomasz Buchert (http://bugzilla.maptools.org/show_bug.cgi?id=2480) - Description: fix for Debian bug #741451 - tiffcp crashes when converting JPEG-encoded TIFF to a different - encoding (like none or lzw). For example this will probably fail: - tiffcp -c none jpeg_encoded_file.tif output.tif - The reason is that when the input file contains JPEG data, - the tiffcp code forces conversion to RGB space. However, - the output normally inherits YCbCr subsampling parameters - from the input, which leads to a smaller working buffer - than necessary. The buffer is subsequently overrun inside - cpStripToTile() (called from writeBufferToContigTiles). - Note that the resulting TIFF file would be scrambled even - if tiffcp wouldn't crash, since the output file would contain - RGB data intepreted as subsampled YCbCr values. - This patch fixes the problem by forcing RGB space on the output - TIF if the input is JPEG-encoded and output is *not* JPEG-encoded. - Author: Tomasz Buchert - -2014-12-21 Even Rouault - - Fix various crasher bugs on fuzzed images. - * libtiff/tif_dir.c: TIFFSetField(): refuse to set negative values for - TIFFTAG_XRESOLUTION and TIFFTAG_YRESOLUTION that cause asserts when writing - the directory - * libtiff/tif_dirread.c: TIFFReadDirectory(): refuse to read ColorMap or - TransferFunction if BitsPerSample has not yet been read, otherwise reading - it later will cause user code to crash if BitsPerSample > 1 - * libtiff/tif_getimage.c: TIFFRGBAImageOK(): return FALSE if LOGLUV with - SamplesPerPixel != 3, or if CIELAB with SamplesPerPixel != 3 or BitsPerSample != 8 - * libtiff/tif_next.c: in the "run mode", use tilewidth for tiled images - instead of imagewidth to avoid crash - * tools/bmp2tiff.c: fix crash due to int overflow related to input BMP dimensions - * tools/tiff2pdf.c: fix crash due to invalid tile count (should likely be checked by - libtiff too). Detect invalid settings of BitsPerSample/SamplesPerPixel for CIELAB / ITULAB - * tools/tiffcrop.c: fix crash due to invalid TileWidth/TileHeight - * tools/tiffdump.c: fix crash due to overflow of entry count. - -2014-12-15 Even Rouault - - * libtiff/tif_jpeg.c: Fix regression introduced on 2010-05-07 that caused - all tiles/strips to include quantization tables even when the jpegtablesmode - had the JPEGTABLESMODE_QUANT bit set. - Also add explicit removal of Huffman tables when jpegtablesmode has the - JPEGTABLESMODE_HUFF bit set, which avoids Huffman tables to be emitted in the - first tile/strip (only useful in update scenarios. create-only was - fine) - -2014-12-09 Bob Friesenhahn - - * tools/tiff2pdf.c: Assure that memory size calculations for - _TIFFmalloc() do not overflow the range of tmsize_t. - -2014-12-07 Even Rouault - - * tools/thumbnail.c, tools/tiffcrop.c: "fix" heap read over-run found with - Valgrind and Address Sanitizer on test suite - -2014-12-07 Bob Friesenhahn - - * tools/tiff2pdf.c (t2p_read_tiff_init): TIFFTAG_TRANSFERFUNCTION - tag can return one channel, with the other two channels set to - NULL. The tiff2pdf code was expecting that other two channels - were duplicate pointers in the case where there is only one - channel. Detect this condition in order to avoid a crash, and - presumably perform correctly with just one channel. - -2014-12-06 Bob Friesenhahn - - * tools/tiffdump.c: Fix double-free bug. - -2014-11-27 Even Rouault - - * libtiff/tif_config.vc.h: no longer use "#define snprintf _snprintf" with - Visual Studio 2015 aka VC 14 aka MSVC 1900 - -2014-11-20 Even Rouault - - * libtiff/tif_lzw.c: prevent potential null dereference of - sp->dec_codetab in LZWPreDecode (bug #2459) - - * libtiff/tif_read.c: in TIFFReadBufferSetup(), avoid passing -1 size - to TIFFmalloc() if passed user buffer size is 0 (bug #2459) - - * libtiff/tif_ojpeg.c: make Coverity happier (not a bug, #2459) - - * libtiff/tif_dir.c: in _TIFFVGetField() and _TIFFVSetField(), make - Coverity happier (not a bug, #2459) - - * libtiff/tif_dirread.c: in TIFFFetchNormalTag(), make Coverity happier - (not a bug, #2459) - - * tools/tiff2pdf.c: close PDF file (bug #2479) - - * tools/fax2ps.c: check malloc()/realloc() result (bug #2470) - - * tools/tiffdump.c: detect cycle in TIFF directory chaining (bug #2463) - and avoid passing a NULL pointer to read() if seek() failed before (bug #2459) - - * tools/tiffcrop.c: fix segfault if bad value passed to -Z option - (bug #2459) and add missing va_end in dump_info (#2459) - - * tools/gif2tif.c: apply patch for CVE-2013-4243 (#2451) - -2014-11-20 Even Rouault - * libtiff/tif_jpeg.c: fix segfault in JPEGFixupTagsSubsampling() on - corrupted image where tif->tif_dir.td_stripoffset == NULL (bug #2471) - -2014-11-20 Even Rouault - * automake: updated to 1.14.1 - * libtool: updated to 2.4.3 - * HOWTO-RELEASE: small update about autotools building order - -2014-10-20 Olivier Paquet - * tools/tiff2pdf.c: Preserve input file directory order when pages - are tagged with the same page number. - -2014-08-31 Bob Friesenhahn - - * libtiff/tif_dirread.c (TIFFReadDirEntryOutputErr): Incorrect - count for tag should be a warning rather than an error since - errors terminate processing. - -2014-06-07 Bob Friesenhahn - - * tools/tiff2rgba.c (]): Fixed tiff2rgba usage message in that zip - was wrongly described. Fix suggested by Miguel Medalha. - -2014-05-06 Bob Friesenhahn - - * libtiff/tif_dirinfo.c (TIFFField) : Fix data type for - TIFFTAG_GLOBALPARAMETERSIFD tag. Patch by Steve Underwood. - Reviewed and forwarded by Lee Howard. - -2013-11-30 Frank Warmerdam - - * libtiff/tif_dir.c: fix last fix for TIFFNumberOfDirectories() - -2013-10-21 Frank Warmerdam - - * libtiff/tif_dir.c: generate error in case of directory count - overflow. - -2013-10-01 Frank Warmerdam - - * libtiff/tiff.h, libtiff/tif_dirinfo.c: add definitions for - TIFF/EP CFARepeatPatternDim and CFAPattern tags (bug #2457) - -2013-09-12 Bob Friesenhahn - - * libtiff/tif_dir.c (TIFFAdvanceDirectory): If nextdir is found to - be defective, then set it to zero before returning error in order - to terminate processing of truncated TIFF. Issue found and fix - suggested by Richard Nolde. - -2013-08-14 Frank Warmerdam - - * tools/gif2tiff.c: fix possible OOB write (#2452, CVE-2013-4244) - -2013-08-13 Frank Warmerdam - - * tools/gif2tiff.c: Be more careful about corrupt or - hostile input files (#2450, CVE-2013-4231) - - * tools/tiff2pdf.c: terminate after failure of allocating - ycbcr buffer (bug #2449, CVE-2013-4232) - -2013-07-09 Frank Warmerdam - - * tools/tiffinfo.c: Default various values fetched with - TIFFGetField() to avoid being uninitialized. - -2013-05-02 Tom Lane - - * tools/tiff2pdf.c: Rewrite JPEG marker parsing in - t2p_process_jpeg_strip to be at least marginally competent. The - approach is still fundamentally flawed, but at least now it won't - stomp all over memory when given bogus input. Fixes CVE-2013-1960. - -2013-05-02 Tom Lane - - * contrib/dbs/xtiff/xtiff.c, libtiff/tif_codec.c, - libtiff/tif_dirinfo.c, tools/rgb2ycbcr.c, tools/tiff2bw.c, - tools/tiff2pdf.c, tools/tiff2ps.c, tools/tiffcrop.c, - tools/tiffdither.c: Enlarge some fixed-size buffers that weren't - large enough, and eliminate substantially all uses of sprintf(buf, - ...) in favor of using snprintf(buf, sizeof(buf), ...), so as to - protect against overflow of fixed-size buffers. This responds in - particular to CVE-2013-1961 concerning overflow in tiff2pdf.c's - t2p_write_pdf_page(), but in general it seems like a good idea to - deprecate use of sprintf(). - -2013-03-29 Bob Friesenhahn - - * configure.ac: Applied patch by Brad Smith to improve pkg-config - static linking by adding -lm to Libs.private when needed. - -2013-03-05 Tom Lane - - * html/man/tiff2ps.1.html, html/man/tiffcp.1.html, - html/man/tiffdither.1.html, man/tiff2ps.1, man/tiffcp.1, - man/tiffdither.1, tools/tiff2ps.c, tools/tiffcp.c, - tools/tiffdither.c: Sync tool usage printouts and man pages with - reality (quite a few options had escaped being documented in one - or both places). Per an old report from Miroslav Vadkerti. - -2013-01-25 Bob Friesenhahn - - * tools/tiff2ps.c:Fix bug in auto rotate option code. Once a - rotation angle was set by the auto rotate check, it was retained - for all pages that followed instead ofa being retested for each - page. Patch by Richard Nolde. - -2013-01-18 Frank Warmerdam - - * libtiff/tif_write.c: tmsize_t related casting warning fixed for - 64bit linux. - - * libtiff/tif_read.c: uint64/tmsize_t change for MSVC warnings. - http://bugzilla.maptools.org/show_bug.cgi?id=2427 - -2012-12-20 Tom Lane - - * test/raw_decode.c: Relax raw_decode's pixel-value checks so that - it will pass with more versions of libjpeg. (There are at least - three in active use now, and JPEG_LIB_VERSION doesn't tell us - enough to uniquely identify expected results.) - -2012-12-12 Tom Lane - - * libtiff/tif_print.c: Fix TIFFPrintDirectory's handling of - field_passcount fields: it had the TIFF_VARIABLE and - TIFF_VARIABLE2 cases backwards. - -2012-12-10 Tom Lane - - * tools/ppm2tiff.c: Improve previous patch for CVE-2012-4564: - check the linebytes calculation too, get the max() calculation - straight, avoid redundant error messages, check for malloc - failure. - -2012-12-10 Tom Lane - - * libtiff/tif_pixarlog.c: Improve previous patch for CVE-2012-4447 - (to enlarge tbuf for possible partial stride at end) so that - overflow in the integer addition is detected. Per gripe from - Huzaifa Sidhpurwala. - -2012-12-03 Bob Friesenhahn - - * tools/tiffset.c: tiffset now supports a -u option to unset a - tag. Patch by Zach Baker. See - http://bugzilla.maptools.org/show_bug.cgi?id=2419 - -2012-11-18 Bob Friesenhahn - - * automake: Update Automake to 1.12.5 release. - - * libtiff/tif_{unix,vms,win32}.c (_TIFFmalloc): ANSI C does not - require malloc() to return NULL pointer if requested allocation - size is zero. Assure that _TIFFmalloc does. - -2012-11-01 Frank Warmerdam - - * tools/ppm2tiff.c: avoid zero size buffer vulnerability. - CVE-2012-4564 - Thanks to Huzaifa Sidhpurwala of the - Red Hat Security Response team for the fix. - -2012-10-18 Frank Warmerdam - - * tif_zip.c: Avoid crash on NULL error messages. - -2012-09-22 Bob Friesenhahn - - * libtiff 4.0.3 released. - -2012-09-20 Bob Friesenhahn - - * Makefile.am: Update to Automake 1.12.4 - -2012-08-19 Bob Friesenhahn - - * Makefile.in: Update to Automake 1.12.3 - - * libtiff{tiff.h, tif_print.c, tif_dirinfo.c, tif_dirread.c}: Add - some TIFF/FX support in libtiff. Add the tag definitions to - tiff.h. Add the related TIFF field definitions to tif_dirinfo.c, - and also fixes an error in a comment. Adds the photometric values - to tif_print.c, and fixes a bug. These changes are by Steve - Underwood. - -2012-08-13 Frank Warmerdam - - * libtiff/tif_write.c: Fix bug rewriting image tiles in a - compressed file: http://trac.osgeo.org/gdal/ticket/4771 - -2012-08-02 Frank Warmerdam - - * libtiff/tif_dirread.c: report error in case of mismatch value - counts for tags (ie. DotRange). - -2012-07-26 Tom Lane - - * libtiff/{tiffio.h, tif_dirinfo.c, libtiff.def}: Add six new - functions TIFFFieldTag(), TIFFFieldName(), TIFFFieldDataType(), - TIFFFieldPassCount(), TIFFFieldReadCount(), TIFFFieldWriteCount() - as external accessors for the opaque type TIFFField. - - * tools/tiffset.c: Make tiffset use the above functions instead of - relying on library private headers. - -2012-07-19 Tom Lane - - * tools/tiff2pdf.c: Fix two places where t2p_error didn't get set - after a malloc failure. No crash risk AFAICS, but the program - might not report exit code 1 as desired. h/t mancha@mac.hush.com - -2012-07-18 Tom Lane - - * tools/tiff2pdf.c: Fail when TIFFSetDirectory() fails. This - prevents core dumps or perhaps even arbitrary code execution when - processing a corrupt input file (CVE-2012-3401). - -2012-07-06 Bob Friesenhahn - - * test/raw_decode.c (main): Test fixes to work with IJG JPEG 7+. - IJG JPEG 7+ uses a different upsampling algorithm which produces - different numeric results. - - * libtiff/tif_jpeg.c (JPEGPreDecode): Patch from Even Rouault to - work with IJG JPEG 7+. - -2012-07-04 Bob Friesenhahn - - * test/raw_decode.c: Add changes so that test can run with build - directory outside of source directory. - -2012-07-02 Frank Warmerdam - - * libtiff/tif_jpeg.c: Fix handling when writing RGBA jpeg compressed - imagery (http://trac.osgeo.org/gdal/ticket/4732) - -2012-06-20 Frank Warmerdam - - * libtiff/tif_fax3.c: fix memory initialization of runs, only - partly done. - - * libtiff/tif_pixarlog.c: Make sure tbuf is large enough for one - full "stride" past the end. - -2012-06-19 Frank Warmerdam - - * libtiff/tif_packbits.c: fix read past end of data buffer. - -2012-06-15 Frank Warmerdam - - * libtiff 4.0.2 released. - - * tools/tif2pdf.c, tools/tifdump.c: avoid unitialized variable - warnings with clang. - -2012-06-15 Tom Lane - - * tools/tiff2pdf.c: Defend against integer overflows while - calculating required buffer sizes (CVE-2012-2113). - -2012-06-12 Frank Warmerdam - - * libtiff/tif_print.c: Be careful about printing corrupt inknames. - - * libtiff/tif_fax3.c: Ensure runs array is initialized to zeros. - -2012-06-07 Frank Warmerdam - - * libtiff/tif_print.c: avoid pretty printing other fields when - we don't have the proper amount and type of data or if the field - is actually autodefined. - -2012-06-05 Frank Warmerdam - - * libtiff/tif_tile.c, libtiff/tif_strip.c: Ensure that illegal - ycbcrsubsampling values result in a runtime error, not just an - assertion. - - * tests/custom_dir.c: Add testing of EXIF and custom directory - reading and writing. - - * libtiff/tif_dir.c, libtiff/tiffio.h: Add TIFFCreateCustomDirectory() - and TIFFCreateEXIFDirectory() functions. - - * libtiff/tif_dir.c, tif_print.c : Remove FIELD_CUSTOM handling for - PAGENUMBER, HALFTONEHINTS, and YCBCRSUBSAMPLING. Implement DOTRANGE - differently. This is to avoid using special TIFFGetField/TIFFSetField - rules for these fields in non-image directories (like EXIF). - -2012-06-04 Frank Warmerdam - - * libtiff/tif_jpeg.c: Remove code for fixing up h_sampling and v_sampling - in JPEGPreDecode(). If a fixup will be done it needs to be done sooner - in JPEGFixupTagsSubsampling() or else buffer sized may be wrong. - -2012-06-01 Frank Warmerdam - - * tools/tiffinfo.c: Do not try to read image data in EXIF directories. - - * libtiff/tif_getimage.c: added support for _SEPARATED CMYK images. - http://bugzilla.maptools.org/show_bug.cgi?id=2379 - - * libtiff/tif_unix.c: use strerror() to return a more specific error message - on failed open. - http://bugzilla.maptools.org/show_bug.cgi?id=2341 - - * libtiff/tif_jpeg.c: Fix JPEGDecodeRaw() bugs. - http://bugzilla.maptools.org/show_bug.cgi?id=2386 - - * tests/decode_raw.c, tests/images/quad-tile.jpg.tiff: add limited support - for testing jpeg in tiff image decoding including the "raw" decode interface. - -2012-05-31 Frank Warmerdam - - * libtiff/tif_jpeg.c: avoid overrunning the end of the output buffer in - JPEGDecodeRaw() - mostly likely to occur when there is confusion about - sampling values. - - * libtiff/tif_read.c: Make sure tif_rawdatasize is cleared when tif_rawdata is freed. - - * libtiff/tif_getimage.c: Add support for greyscale+alpha c/o Jérémie Laval. - http://bugzilla.maptools.org/show_bug.cgi?id=2398 - -2012-05-29 Frank Warmerdam - - * libtiff/tif_dir.c: avoid using specific set/get logic to process fields in custom directories, - like EXIF directories. This fixes problems like a tag "320" existing in a custom directory getting - processed as if it were a colormap when it isn't really. Damn the wide variety of argument formulations - to get/set functions for different tags! - - * libtiff/tif_dir.c: Ensure that we keep track of when tif_rawdata - is a pointer into an mmap()ed file via TIFF_BUFFERMMAP flag. - -2012-05-24 Frank Warmerdam - - * libtiff/tif_pixarlog.c: Allocate working buffer one word larger since we "forward - accumulate" and overwrite the end by one word in at least some cases. - -2012-05-23 Frank Warmerdam - - * libtiff/tif_pixarlog.c: avoid accessing out of the lookup arrays for out of range inputs. - - * tools/tiffinfo.c: initialize h=0 to avoid undefined variable for degenerate files. - - * libtiff/tif_ojpeg.c: if OJPEGWriteHeader() fails once do not bother trying again on - the same image. - - * libtiff/tif_ojpeg.c: make things more resilient in the face of files without - stripbytecounts or stripoffsets or where loading these fails. - - * libtiff/tif_print.c: be careful about whether min/max values are singular - or one per sample. - - * libtiff/tif_print.c: Avoid confusion about count size when printing custom fields. - May affect things like ISOSpeedRatings. - - * libtiff/tif_dir.c: avoid one byte past end of ink names reading - in some cases. - -2012-05-19 Bob Friesenhahn - - * man/TIFFGetField.3tiff: Correct the 'count' field type in the - example for how to retreive the value of unsupported tags. - -2012-03-30 Frank Warmerdam - - * tif_getimage.c: Fix size overflow (zdi-can-1221,CVE-2012-1173) - care of Tom Lane @ Red Hat. - -2012-02-18 Bob Friesenhahn - - * libtiff 4.0.1 released. - - * Update automake used to 1.11.3. - - * libtiff/tiffio.h: Use double-underbar syntax in GCC printf - attribute specification to lessen the risk of accidental macro - substitution. Patch from Vincent Torri. - -2012-01-31 Frank Warmerdam - - * libtiff/tif_dir.c, libtiff/tif_dirread.c: Extra caution around - assumption tag fetching is always successful. - - * libtiff/tif_jpeg.c: Extra caution for case where sp is NULL. - -2012-01-22 Bob Friesenhahn - - * configure.ac: Add support for using library symbol versioning on - ELF systems with the GNU linker. Support is enabled via - --enable-ld-version-script. Disabled by default for now until - there is a decision for how to deploy a libtiff with versioned - symbols after libtiff 4.0.0 was already released. - -2011-12-22 Bob Friesenhahn - - * libtiff/tif_win32.c: Eliminate some minor 64-bit warnings in - - tif_win32.c. Patch by Edward Lam. - - * configure.ac: Add libtiff private dependency on -llzma for - pkg-config. Patch by Mark Brand. - Updated Automake to 1.11.2. - -2011-12-21 Bob Friesenhahn - - * libtiff 4.0.0 released. - -2011-12-08 Frank Warmerdam - - * libtiff/tif_dirread.c, libtiff/tif_read.c: more cautious checking - of _TIFFFillStriles() results (#gdal 4372) - -2011-12-07 Frank Warmerdam - - * libtiff/tif_dirread.c: fixes to deal with invalid files where - _TIFFFillStriles() fails, and we try to chop up strips (gdal #4372) - - * libtiff/tif_dirread.c: fix error reporting when there is no - tag information struct and name (gdal #4373) - -2011-10-22 Bob Friesenhahn - - * Update GNU libtool to 2.4.2. - - * tools/tiffsplit.c (tiffcp): TIFFGetField count field should be - uint32 type for TIFFTAG_JPEGTABLES. Patch by Christophe - Deroulers. - -2011-06-21 Frank Warmerdam - - * libtiff/libtiff.def: Restore TIFFMergeFieldInfo. - -2011-05-31 Jim Meyering - - * libtiff/tif_dirread.c (TIFFFetchStripThing): Free "data" also - upon failure to allocate "resizeddata". - * tools/tiff2ps.c (PSDataBW): Zero buffer *after* checking for - allocation failure, not before. - * libtiff/tif_ojpeg.c: plug leaks on OJPEG read failure path - * tools/rgb2ycbcr.c (cvtRaster): unchecked malloc - * libtiff/tif_jpeg.c, tools/tiff2pdf.c, tools/tiff2ps.c: mark - NULL-deref and possible overflow - * tools/tiff2pdf.c: remove decl+set of set-but-not-used local, "written" - * libtiff/tif_jpeg.c (JPEGInitializeLibJPEG): Remove declaration - and set of otherwise unused local, data_is_empty. - * libtiff/tif_jpeg.c (JPEGDecodeRaw) [JPEG_LIB_MK1_OR_12BIT]: - Diagnose out-of-memory failure and return 0 rather than - dereferencing NULL. - -2011-05-24 Frank Warmerdam - - * libtiff/tif_dirread.c: produce special error message for zero tag - directories instead of error out on the malloc(0) failure. - -2011-05-16 Frank Warmerdam - - * libtiff/tif_dirinfo.c: Restore TIFFMergeFieldInfo() and - related declarations as they are in active use by libraries - such as libgeotiff, and work just fine. (#2315) - -2011-04-20 Frank Warmerdam - - * libtiff/tif_dirinfo.c,tiffio.h: Remove the obsolete - TIFFMergeFieldInfo/TIFFFindFieldInfo/TIFFFindFieldInfoByName API. - http://bugzilla.maptools.org/show_bug.cgi?id=2315 - - * libtiff/libtiff.def: add some missing (64bit) APIs. - http://bugzilla.maptools.org/show_bug.cgi?id=2316 - -2011-04-09 Bob Friesenhahn - - * libtiff 4.0.0beta7 released. - -2011-04-09 Bob Friesenhahn - - * configure.ac: Should use AC_CANONICAL_HOST since host specifies - the run-time target whereas target is used to specify the final - output target if the package is a build tool (like a compiler), - which libtiff is not. Resolves libtiff bug 2307 "Use - AC_CANONICAL_HOST macro". - -2011-04-02 Bob Friesenhahn - - * configure.ac: Support configuring TIFF_INT64_FORMAT and - TIFF_UINT64_FORMAT appropriately for MinGW32. - - * tools/tiffdump.c (ReadDirectory): MinGW32 needs to use WIN32 - printf conventions for 64-bit types because it uses the WIN32 CRT. - - * libtiff/{tif_dumpmode.c,tif_luv.c,tif_lzw.c,tif_print.c, - tif_read.c,tif_strip.c,tif_thunder.c}: MinGW32 needs to use WIN32 - printf conventions for 64-bit types because it uses the WIN32 CRT. - - * tools/tiff2pdf.c (t2p_write_pdf_string): Fix printf syntax not - understood by WIN32 CRT. - - * libtiff/tif_ojpeg.c: Fixes to compile with MinGW32 GCC. - - * tools/fax2ps.c (main): Use tmpfile() rather than mkstemp() since - it is much more portable. Tmpfile is included in ISO/IEC - 9899:1990 and the WIN32 CRT. - -2011-03-26 Frank Warmerdam - - * tools/tiffset.c: add -d and -sd switches to allow operation on - a particular directory, not just the first (jef). - -2011-03-21 Frank Warmerdam - - * libtiff/tif_thunder.c: Correct potential buffer overflow with - thunder encoded files with wrong bitspersample set. The libtiff - development team would like to thank Marin Barbella and TippingPoint's - Zero Day Initiative for reporting this vulnerability (ZDI-CAN-1004, - CVE-2011-1167). - http://bugzilla.maptools.org/show_bug.cgi?id=2300 - -2011-03-10 Frank Warmerdam - - * libtiff/tif_fax3.h: Fix to last change allowing zero length - runs at the start of a scanline - needed for legal cases. - -2011-03-02 Frank Warmerdam - - * libtiff/tif_fax3.h: Protect against a fax VL(n) codeword commanding - a move left. Without this, a malicious input file can generate an - indefinitely large series of runs without a0 ever reaching the right - margin, thus overrunning our buffer of run lengths. Per CVE-2011-0192. - This is a modified version of a patch proposed by Drew Yao of Apple - Product Security. It adds an unexpected() report, and disallows the - equality case, since emitting a run without increasing a0 still allows - buffer overrun. - -2011-02-23 Frank Warmerdam - - * libtiff/tif_jpeg.c: avoid divide by zero in degenerate case (#2296) - - * tools/tiff2rgba.c: close source file on error to make leak - detection easier. - - * libtiff/tif_getimage.c: avoid leaks if TIFFRGBAImageBegin() fails. - - http://bugzilla.maptools.org/show_bug.cgi?id=2295 - -2011-02-22 Frank Warmerdam - - * libtiff/tif_lzma.c: Maintain tif_rawcc/tif_rawcp (CHUNKY_STRING_READ - _SUPPORT) - -2011-02-18 Frank Warmerdam - - * configure.ac, configure: Added support for --enable-chunky-strip-read - configure option to enable the experimental feature from a couple - months ago for reading big strips in chunks. - - * configure.ac, tif_read.c, tif_readdir.c, tif_dir.h, tiffiop.h, - tif_write.c, tif_print.c, tif_jpeg.c, tif_dirwrite.c, tif_write.c: - Implement optional support for deferring the load of strip/tile - offset and size tags for optimized scanning of directories. Enabled - with the --enable-defer-strile-load configure option (DEFER_STRILE_LOAD - #define in tif_config.h). - -2011-02-11 Frank Warmerdam - - * libtiff/tif_print.c: remove unused variable. - -2011-02-09 Frank Warmerdam - - * libtiff/tif_win32.c: avoid error/warning buffer overrun problem - with non-console (popup message) builds on win32. - - http://bugzilla.maptools.org/show_bug.cgi?id=2293 - -2011-01-24 Olivier Paquet - - * libtiff/{tif_dir.{h,c}, tif_dirinfo.c, tif_dirread.c, tif_dirwrite.c, - tif_print.c, tiff.h, tiffiop.h} : Added support for - TIFFTAG_SMINSAMPLEVALUE and TIFFTAG_SMAXSAMPLEVALUE to have different - values for each sample. Presents the min/max of all samples by default for - compatibility. TIFFSetField/TIFFGetField can be made to handle those tags - as arrays by changing the new TIFFTAG_PERSAMPLE pseudo tag. - http://www.asmail.be/msg0055458208.html - -2011-01-06 Frank Warmerdam - - * libtiff/tif_pixarlog.c: Note that tif_rawcc/tif_rawcp are not - maintained. - - * libtiff/tif_zip.c: Maintain tif_rawcc/tif_rawcp when decoding - for CHUNKY_STRIP_READ_SUPPORT. - - * libtiff/tif_jpeg.c: ensure that rawcc and rawcp are maintained - during JPEGPreDecode and JPEGDecode calls. - * libtiff/tif_read.c: larger read ahead for CHUNKY_STRIP_READ_SUPPORT, - as compression formats like JPEG keep 16 lines interleaved in a sense - and might need to touch quite a bit of data. - - http://trac.osgeo.org/gdal/ticket/3894 - -2011-01-03 Lee Howard - - * libtiff/tif_jpeg.c: Fix regressions with 2 and 3 band images - caused by commit on 2010-12-14. Submitted by e-mail from - Even Rouault - -2010-12-31 Olivier Paquet - - * libtiff/tif_dirwrite.c: Fixed writing of TIFFTAG_REFERENCEBLACKWHITE. - http://bugzilla.maptools.org/show_bug.cgi?id=2266 - -2010-12-23 Andrey Kiselev - - * tools/tiffcp.c, man/tiffcp.1: Added support for specifying the - compression level parameter (preset) for Deflate and LZMA encoders, - e.g "-c lzma:p1" or "-c zip:p9". - - * libtiff/tif_lzma.c: Properly set the LZMA2 compression level - (preset) in LZMAVSetField(). - -2010-12-18 Bob Friesenhahn - - * libtiff/Makefile.am (libtiff_la_SOURCES): Added tif_lzma.c to - Makefile. - -2010-12-14 Andrey Kiselev - - * configure.ac, libtiff/{tif_codec.c, tif_config.h.in, tiff.h, - tiffiop.h, tif_lzma.c}, tools/tiffcp.c, man/tiffcp.1: Implement a new - TIFF compression scheme LZMA reserving a new value 34925 for - Compression tag. As per - bug http://bugzilla.maptools.org/show_bug.cgi?id=2221 - -2010-12-14 Lee Howard - - * libtiff/tif_dirread.c: tolerate some cases where - FIELD_COLORMAP is missing - http://bugzilla.maptools.org/show_bug.cgi?id=2189 - -2010-12-14 Lee Howard - - * libtiff/tif_read.c: change read_ahead to tmsize_t - http://bugzilla.maptools.org/show_bug.cgi?id=2222 - -2010-12-14 Lee Howard - - * configure.ac, libtiff/Makefile.am: Build tif_win32.c on - Windows except on Cygwin - http://bugzilla.maptools.org/show_bug.cgi?id=2224 - -2010-12-14 Lee Howard - - * tools/gif2tiff.c: fix buffer overrun - http://bugzilla.maptools.org/show_bug.cgi?id=2270 - -2010-12-14 Lee Howard - - * libtiff/tif_jpeg.c: reduce usage of JCS_UNKNOWN in order - to improve compatibility with various viewers - submitted by e-mail from Dwight Kelly - -2010-12-13 Lee Howard - - * tools/fax2ps.c: be consistent with page-numbering - http://bugzilla.maptools.org/show_bug.cgi?id=2225 - -2010-12-13 Lee Howard - - * libtiff/tif_color.c: prevent crash in handling bad TIFFs - resolves CVE-2010-2595 - http://bugzilla.maptools.org/show_bug.cgi?id=2208 - -2010-12-13 Lee Howard - - * tools/tiffcrop.c: new release by Richard Nolde - http://bugzilla.maptools.org/show_bug.cgi?id=2004 - -2010-12-12 Lee Howard - - * tools/tiff2pdf.c: fix colors for images with RGBA - interleaved data - http://bugzilla.maptools.org/show_bug.cgi?id=2250 - -2010-12-12 Lee Howard - - * libtiff/tif_dirread.c: fix for Zeiss LSM and Canon CR2 files - http://bugzilla.maptools.org/show_bug.cgi?id=2164 - -2010-12-11 Lee Howard - - * tools/tiff2pdf.c: remove invalid duplication for Lab - http://bugzilla.maptools.org/show_bug.cgi?id=2162 - -2010-12-11 Lee Howard - - * libtiff/tif_jpeg.c: fix use of clumplines calculation - http://bugzilla.maptools.org/show_bug.cgi?id=2149 - -2010-12-11 Lee Howard - - * tools/fax2ps.c: replace unsafe tmpfile() with mkstemp() - http://bugzilla.maptools.org/show_bug.cgi?id=2118 - -2010-12-11 Lee Howard - - * libtiff/tif_ojpeg.c, libtiff/tif_pixarlog.c, - libtiff/tif_zip.c: fix build errors for VC6 - http://bugzilla.maptools.org/show_bug.cgi?id=2105 - -2010-12-11 Lee Howard - - * libtiff/tif_stream.cxx: warnings cleanup - http://bugzilla.maptools.org/show_bug.cgi?id=2091 - * libtiff/tif_dirread.c: warnings cleanup - http://bugzilla.maptools.org/show_bug.cgi?id=2092 - -2010-12-11 Lee Howard - - * tools/tiff2pdf.c: add fill-page option - http://bugzilla.maptools.org/show_bug.cgi?id=2051 - -2010-12-11 Lee Howard - - * libtiff/tif_dirread.c: modify warnings - http://bugzilla.maptools.org/show_bug.cgi?id=2016 - -2010-12-11 Lee Howard - - * libtiff/tif_ojpeg.c: fix buffer overflow on problem data - http://bugzilla.maptools.org/show_bug.cgi?id=1999 - -2010-12-11 Lee Howard - - * tools/tiffinfoce.c: strip byte counts are uint64* now - -2010-12-11 Lee Howard - - * libtiff/tif_ojpeg.c: fix crash when reading a TIFF with a zero - or missing byte-count tag - * tools/tiffsplit.c: abort when reading a TIFF without a byte-count - per http://bugzilla.maptools.org/show_bug.cgi?id=1996 - -2010-12-08 Lee Howard - - * libtiff/tif_dirread.c: fix crash when reading a badly-constructed - TIFF per http://bugzilla.maptools.org/show_bug.cgi?id=1994 - -2010-12-06 Lee Howard - - * libtiff/tif_open.c: Fix mode check before opening a file. - http://bugzilla.maptools.org/show_bug.cgi?id=1906 - -2010-11-27 Bob Friesenhahn - - * libtiff-4.pc.in: Added libtiff pkg-config .pc file support. - Patch by Vincent Torri. - -2010-10-21 Frank Warmerdam - - * tools/tiffinfo.c: avoid direct reference to _TIFFerrorHandler. - - * libtiff/tif_config.vc.h: define snprintf to _snprintf for tiff2pdf. - - * libtiff/libtiff.def: export _TIFFCheckMalloc for tools. - -2010-09-25 Lee Howard - - * tools/tiff2ps.c: improvements and enhancements from Richard Nolde - with additional command line options for Document Title, - Document Creator, and Page Orientation - -2010-07-13 Bob Friesenhahn - - * tools/tiffcrop.c: Patch from Richard Nolde to avoid a - potentially unterminated buffer due to using an exceptionally long - file name. - -2010-07-08 Andrey Kiselev - - * tools/tiff2pdf.c: Fixed ID buffer filling in - t2p_write_pdf_trailer(), thanks to Dmitry V. Levin. - -2010-07-07 Andrey Kiselev - - * libtiff/tif_dirread.c: Really reset the tag count in CheckDirCount() - to expected value as the warning message suggests. As per bug - http://bugzilla.maptools.org/show_bug.cgi?id=1963 - -2010-07-06 Andrey Kiselev - - * tools/tiffset.c: Properly handle TIFFTAG_PAGENUMBER, - TIFFTAG_HALFTONEHINTS, TIFFTAG_YCBCRSUBSAMPLING, TIFFTAG_DOTRANGE - which should be set by value. - - * libtiff/tif_dirinfo.c: Don't use assertions in _TIFFFieldWithTag() - and _TIFFFieldWithName() if the tag is not found in the tag table. - This should be normal situation and returned NULL value should be - properly handled by the caller. - -2010-07-02 Andrey Kiselev - - * libtiff/tif_getimage.c: Avoid wrong math du to the signed/unsigned - integer type conversions. As per bug - http://bugzilla.maptools.org/show_bug.cgi?id=2207 - - * tools/{tiff2bw.c, thumbnail.c, pal2rgb.c}: Fix the count for - WhitePoint tag as per bug - http://bugzilla.maptools.org/show_bug.cgi?id=2042 - - * libtiff/tif_getimage.c: Check the number of samples per pixel when - working with YCbCr image in PickContigCase(). As per bug - http://bugzilla.maptools.org/show_bug.cgi?id=2216 - - * libtiff/tif_dir.c: Set the bogus post-decoding hook when processing - TIFFTAG_BITSPERSAMPLE in _TIFFVSetField() for the case of 8 bit when - we don't need any post-processing. That helps to reset the hook if we - previously set this field to some other value and the hook was - initialized accordingly. As per bug - http://bugzilla.maptools.org/show_bug.cgi?id=2035 - -2010-07-01 Andrey Kiselev - - * tools/tiffgt.c: Properly check the raster buffer allocations for - integer overflows. As per bug - http://bugzilla.maptools.org/show_bug.cgi?id=2108 - - * m4/acinclude.m4: Update GL/GLU/GLUt/Pthread macros from the - upstream. - - * libtiff/{tif_aux.c, tif_strip.c, tif_tile.c, tiffiop.h}: Move - multiply_32() and multiply_64() functions into tif_aux.c file and - rename them into _TIFFMultiply32() and _TIFFMultiply64() respectively. - -2010-06-30 Andrey Kiselev - - * tools/tiff2pdf.c: Better generation of ID field in - t2p_write_pdf_trailer(). Get rid of GCC aliasing warnings. - - * tools/tiff2pdf.c: Fixed computation of the tile buffer size when - converting JPEG encoded tiles. - - * tools/tiff2pdf.c: Better handling of string fields, use static - string buffers instead of dynamically allocated, use strncpy() instead - of strcpy(), control the string lengths. - -2010-06-25 Andrey Kiselev - - * tools/tiffcp.c: Initialize buffer arrays with zero to avoid - referencing to uninitialized memory in some cases (e.g. when tile size - set bigger than the image size). - -2010-06-15 Bob Friesenhahn - - * tools/tiffcrop.c: Patch from Richard Nolde. Reject YCbCr - subsampled data since tiffcrop currently doesn't support it. Fix - JPEG support. - -2010-06-13 Frank Warmerdam - - * libtiff/tif_dirinfo.c: Fix invocation of tag compare function (#2201) - - * tools/tiff2pdf.c: Fix assorted bugs in tiff2pdf: missing "return" - in t2p_read_tiff_size() causes t2p->tiff_datasize to be set entirely - wrong for COMPRESSION_JPEG case, resulting in memory stomp if actual - size is larger. Also, there are a bunch of places that try to - memset() a malloc'd buffer before checking for malloc failure, which - would result in core dump if there actually were a failure. (#2211) - -2010-06-11 Bob Friesenhahn - - * libtiff/tiffiop.h (TIFFSafeMultiply): Need more castings to - avoid compiler warnings if parameter types are not sign - consistent. - - * libtiff 4.0.0alpha6 released. - - * tools/tiffcrop.c: Applied patch from Richard Nolde: Corrected - European page size dimensions. Added an option to allow the user - to specify a custom page size on the command line. Fix the case - where a page size specified with a fractional part was being - coerced to an integer by retyping the variables that define the - paper size. - - * html/index.html: Update for the 3.9.3 release. - - * tools/tiffcp.c (tiffcp): Applied Tom Lane's patch to reject - YCbCr subsampled data since tiffcp currently doesn't support it. - http://bugzilla.maptools.org/show_bug.cgi?id=2097 - - * Update libtool to version 2.2.10. - -2010-06-10 Bob Friesenhahn - - * libtiff/tiffiop.h (TIFFSafeMultiply): Work properly if - multiplier is zero. - -2010-06-09 Bob Friesenhahn - - * libtiff/tif_fax3.c (Fax3SetupState): Yesterday's fix for - CVE-2010-1411 was not complete. - - * libtiff/tiffiop.h (TIFFSafeMultiply): New macro to safely - multiply two integers. Returns zero if there is an integer - overflow. - - * tools/tiffcp.c (main): tiffcp should not leak memory if an error - is reported when reading the input file. - -2010-06-08 Bob Friesenhahn - - * Update libtool to version 2.2.8. - - * libtiff/tif_fax3.c (Fax3SetupState): Avoid under-allocation of - buffer due to integer overflow in TIFFroundup() and several other - potential overflows. In conjunction with the fix to TIFFhowmany(), - fixes CVE-2010-1411. - - * libtiff/tiffiop.h (TIFFhowmany): Return zero if parameters would - result in an integer overflow. This causes TIFFroundup() to also - return zero if there would be an integer overflow. - - * contrib: Add an emacs formatting mode footer to all source files - so that emacs can be effectively used. - -2010-06-03 Oliver Chen Feng - - * libtiff/tools/tiffcp.c: add a new option -x to force merged tiff - file PAGENUMBER value in sequence for users who care the page - sequence, this will also prevent tiff2pdf from creating pdf file from - the merged tiff file with wrong page sequence. - -2010-05-08 Olivier Paquet - - * libtiff/tif_dirread.c: Restored TIFFReadDirEntryFloat function in order - to add missing TIFF_SETGET_FLOAT case to TIFFFetchNormalTag. - * libtiff/tif_dirinfo.c: Use correct set_field_type for - TIFFTAG_PIXAR_FOVCOT so it is readable again (regression from 3.9.2). - http://bugzilla.maptools.org/show_bug.cgi?id=2192 - -2010-05-07 Frank Warmerdam - - * libtiff/tif_jpeg.c: Ensure that quality is always set in - JPEGPreEncode(), not just when we want to output local tables. - Otherwise the quality used during compression may not be right and - might not match the tables in the tables tag. This bug only occurs - when seeking between directories in the midst of writing blocks. - http://trac.osgeo.org/gdal/ticket/3539 - -2010-05-06 Andrey Kiselev - - * html/man/TIFFGetField.3tiff.html, html/man/TIFFSetField.3tiff.html: - Regenerated from the source. - -2010-05-05 Olivier Paquet - - * libtiff/tif_print.c: Fixed printing of TIFFTAG_REFERENCEBLACKWHITE which - had stopped working. Also made it always print 6 floats instead of - 2*SamplesPerPixel. - http://bugzilla.maptools.org/show_bug.cgi?id=2191 - http://bugzilla.maptools.org/show_bug.cgi?id=2186 - * man/TIFFGetField.3tiff, man/TIFFSetField.3tiff: Fixed doc to reflect the - fact that libtiff considers TIFFTAG_REFERENCEBLACKWHITE to be 6 floats. - -2010-05-05 Frank Warmerdam - - * libtiff/tif_jpeg.c: Fix to use memcmp(), not memcpy() when checking - if the jpeg table was written. This is a fix for the last fix on 04-21. - -2010-04-21 Frank Warmerdam - - * libtiff/tif_jpeg.c: avoid preparing jpeg tables everytime - JPEGSetupEncode() is called if the tables already seem to be - established. This prevents spurious updates and rewriting of - directories with jpegtables when doing updates to existing images. - http://trac.osgeo.org/gdal/ticket/3539 - -2010-04-20 Olivier Paquet - - * libtiff/tif_dirinfo.c: Use correct set_field_type for - TIFFTAG_PIXAR_IMAGEFULLWIDTH, TIFFTAG_PIXAR_IMAGEFULLLENGTH, - TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN and TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA. - They were unreadable with TIFF_SETGET_UNDEFINED, a regression from 3.9.2. - http://bugzilla.maptools.org/show_bug.cgi?id=2139 - -2010-04-10 Bob Friesenhahn - - * libtiff/tif_dir.c (_TIFFVSetField): Add a special error case for - when the tag count value is zero. Error handling is still a - regression since in 3.9.2, empty tags are skipped (with a warning) - rather than returning a hard error and refusing to read the file. - - * tools/ppm2tiff.c (main): While case for parsing comment line - requires extra parenthesis to work as expected. Reported by - Thomas Sinclair. - -2010-04-02 Frank Warmerdam - - * libtiff/tif_read.c (primarily): Add support for - CHUNKY_STRIP_READ_SUPPORT where large strips are - read in chunks for applications using TIFFReadScanline(). - This is intended to make it more practical work with very - large compressed one-strip files. Feature is off by default. - Enable by defining CHUNK_STRIP_READ_SUPPORT as a macro. - http://trac.osgeo.org/gdal/ticket/3514 - -2010-03-31 Frank Warmerdam - - * libtiff/tif_flush.c: Use TIFFRewriteDirectory() when flushing - directories so previously placed directories will be migrated to - the end of file if needed. - -2010-03-30 Frank Warmerdam - - * libtiff/tif_lzw.c: change type of dec_bitsleft field to uint64 - to support operating on strips/tiles of more than 256MB. - http://trac.osgeo.org/gdal/ticket/3512 - -2010-03-10 Bob Friesenhahn - - * libtiff/tif_aux.c (_TIFFCheckRealloc): Improve error message so - that it is clearly a memory allocation error message, and also - includes the size of the allocation request. - -2010-02-22 Lee Howard - - * libtiff/tif_jpeg.c: Do not generate a JPEGTables tag when creating - the JPEG TIFF as is is not required in order to prevent it from - being unused and filled with invalid data. (Leave it to be - generated by later activity.) - http://bugzilla.maptools.org/show_bug.cgi?id=2135 - * tools/tiff2pdf.c: Write the JPEG SOI headers into the TIFF strip - data rather than skipping them. This fixes the ability to view in - Acrobat Reader, Evince, and Ghostscript. - http://bugzilla.maptools.org/show_bug.cgi?id=2135 - * libtiff/tif_fax3.c: Don't return error on badly-terminated MMR - strips. - http://bugzilla.maptools.org/show_bug.cgi?id=2029 - -2009-12-03 Frank Warmerdam - - * libtiff/tif_jpeg.c: Made JPEGDecodeRaw() check for buffer overruns. - Made so that when working with downsampled images a stub function - reporting an error is used for tif_decoderow. We cannot meaningfully - support reading scanlines in this situation. (#1936) - - * libtiff/tif_jpeg.c: Ensure that tif_scanlinesize is computed after - resetting of the upsampling values (gdal:#3259). - http://bugzilla.maptools.org/show_bug.cgi?id=1936 - -2009-11-30 Frank Warmerdam - - * contrib/dbs/tiff-grayscale.c, contrib/tif-palette.c, - tools/ras2tiff.c: Fix resource leaks on error. - http://bugzilla.maptools.org/show_bug.cgi?id=2121 - - * libtiff/tif_{aux.c,dir.c,dir.h,dirinfo.c}: Return to handling - TIFFTAG_REFERENCEBLACKWHITE as a field in the TIFF directory instead - of as a custom(generic) field to avoid a potential reentrancy problem. - http://bugzilla.maptools.org/show_bug.cgi?id=2125 - - * libtiff/tif_color.c, libtiff/tif_getimage.c, libtiff/tiffio.h, - man/TIFFcolor.3tiff: Make TIFFDisplay argument in TIFFCIELabToRGBInit - const, and display_sRGB static and const. - http://bugzilla.maptools.org/show_bug.cgi?id=2124 - -2009-11-04 Bob Friesenhahn - - * libtiff 4.0.0alpha5 released. - -2009-11-03 Bob Friesenhahn - - * tools/tiffcrop.c: Updated tiffcrop from Richard Nolde. This - version has undergone substantial testing with arbitrary sample - bit depths. Also eliminates GCC compilation warnings. - -2009-11-02 Bob Friesenhahn - - * port/libport.h: Add extern declarations for getopt standard - globals. - -2009-10-31 Bob Friesenhahn - - * libtiff/tif_lzw.c (LZWDecode, LZWDecodeCompat): Fix warnings - noticed in 64-bit build of libtiff with Visual Studio 2005. - Resolves "Bug 2067 - Visual Studio 2005 64-bit warnings in - tif_lzw.c", http://bugzilla.maptools.org/show_bug.cgi?id=2067 - - * libtiff/tif_pixarlog.c (PixarLogEncode): Fix non-important - warning noticed in Visual Studio 2005 build. Resolves "Bug 2068 - - Visual Studio 2005 64-bit warning in tif_pixarlog.c", - http://bugzilla.maptools.org/show_bug.cgi?id=2068 - -2009-10-29 Bob Friesenhahn - - * libtiff/tif_dirread.c: Eliminate GCC "dereferencing type-punned - pointer" warnings. - -2009-10-28 Bob Friesenhahn - - * html/tools.html: Add manual page links, and a summary - description of tiffcrop. - -2009-10-07 Bob Friesenhahn - - * configure.ac: x86_64 should use the same fill order as i386. - -2009-09-24 Bob Friesenhahn - - * tools/tiffcrop.c, man/tiffcrop.1: New tiffcrop from Richard - Nolde. Major updates to add significant functionality for reading - and writing tile based images with bit depths not a multiple of 8 - which cannot be handled by tiffcp. - -2009-09-03 Bob Friesenhahn - - * libtiff/tif_ojpeg.c (OJPEGWriteHeaderInfo): IJG JPEG 7 needs - do_fancy_upsampling=FALSE in order to read raw data. Resolves - "Bug 2090 - OJPEG crash with libjpeg v7". - http://bugzilla.maptools.org/show_bug.cgi?id=2090 - -2009-09-03 Frank Warmerdam - - * libtiff/tif_getimage.c: Fixed error recognition handling in RGBA - interface when stoponerror is set. - http://bugzilla.maptools.org/show_bug.cgi?id=2071 - -2009-08-30 Bob Friesenhahn - - * tools/{tiffcrop.c,tiffgt.c}: Applied patch from Oden Eriksson to - fix build with gcc when using the "-Wformat - -Werror=format-security" flags. - -2009-08-29 Bob Friesenhahn - - * test/{bmp2tiff_palette.sh, bmp2tiff_rgb.sh, gif2tiff.sh, - ppm2tiff_pbm.sh, ppm2tiff_pgm.sh, ppm2tiff_ppm.sh}: Additional - utilities tests. - -2009-08-28 Bob Friesenhahn - - * tools/tiffinfo.c: tiffinfo should return error status to the - caller. Register a private error callback to accomplish that. - - * test/Makefile.am (TIFFIMAGES): Add test images in BMP, GIF, and - PNM formats so that we will be able to test more of the tools. - While adding these test images I notice that bmp2tiff and gif2tiff - only support ancient versions of their respective formats. - -2009-08-27 Bob Friesenhahn - - * libtiff 4.0.0alpha4 released. - - * HOWTO-RELEASE: Improved release instructions. - -2009-08-24 Bob Friesenhahn - - * man/{TIFFClose.3tiff,raw2tiff.1,tiffcmp.1,tiffsplit.1}: Applied - fixes for "Bug 2023 - nroff errors in manual pages". - http://bugzilla.maptools.org/show_bug.cgi?id=2023 - - * tools/{rgb2ycbcr.c, tiff2rgba.c}: Applied fixes for "Bug 2079 - - CVE-2009-2347 libtiff: integer overflows in various inter-color - space conversion tools". - http://bugzilla.maptools.org/show_bug.cgi?id=2079 - - * libtiff/tif_print.c (TIFFPrintDirectory): Apply fix from Jay - Berkenbilt for "Bug 2024 - possible null pointer dereference with - one-line fix". - http://bugzilla.maptools.org/show_bug.cgi?id=2024 - - * libtiff/tif_dirread.c (TIFFReadCustomDirectory): Apply patch - from Jay Berkenbilt for "Bug 1895 - logic error in tif_dirread.c: - segfault after setting tdir_tag = IGNORE". - http://bugzilla.maptools.org/show_bug.cgi?id=1895 - -2009-08-23 Bob Friesenhahn - - * test/Makefile.am, test/tiffcrop*.sh: Split previously existing - tiffcrop.sh into a collection of many specific tests. Re-wrote - all of the existing tests to be based on some simple shell - functions. Make distcheck works again. - - Export certain variables (MAKE, MAKEFLAGS, MEMCHECK) to tests and - added 'memcheck' and 'ptrcheck' targets to make it easy to run the - tests under valgrind. - -2009-08-21 Bob Friesenhahn - - * test/tiffcp-logluv.sh: Fix test so that it works with a VPATH - build. - - * test/Makefile.am (AUTOMAKE_OPTIONS): Colorized tests was not - actually activated since it needed to be enabled in this - Makefile.am. Also activated parallel-tests mode since it offers - useful features such as per-test .log files and a summary test - report .log file. - -2009-08-20 Bob Friesenhahn - - * configure.ac: Updated autotools. Autoconf 2.64, Automake 1.11, - libtool 2.2.6. Enabled support for silent build rules - (--enable-silent-rules or 'make V=0') and colorized tests. - - * html/{index.html, v3.9.0.html}: Update for 3.9.0 release. - -2009-06-30 Frank Warmerdam - - * tests/tiffcp-logluv.sh: minimal testing of sgilog compression. - - * tools/tiffcp.c: add -c sgilog support. - - * libtiff/tif_luv.c: correct return codes from encoderow to be - 1 on success instead of zero. - http://bugzilla.maptools.org/show_bug.cgi?id=2069 - - * libtiff/tif_lzw.c: back out patch from #2065 and apply patch from - #1085 for a better underflow fix that errors properly. - http://bugzilla.maptools.org/show_bug.cgi?id=2065 - http://bugzilla.maptools.org/show_bug.cgi?id=1985 - -2009-06-26 Frank Warmerdam - - * libtiff/tif_strip.c: Remove an inappropriate assertion that often - fails on oddly sized 12bit jpeg compressed ycbcr images. - -2009-06-22 Frank Warmerdam - - * libtiff/tif_lzw.c: Fix buffer underflow bug. - http://bugzilla.maptools.org/show_bug.cgi?id=2065 - -2009-06-21 Frank Warmerdam - - * configure.ac, libtiff/tif_jpeg.c, libtiff/tif_jpeg_12.c: add support - for dual mode 8/12 bit jpeg support. - -2009-06-03 Frank Warmerdam - - * libtiff/tif_write.c: do not override the planar configuration to be - contig for one sample files if planar configuration is already set. - http://bugzilla.maptools.org/show_bug.cgi?id=2057 - -2009-06-02 Frank Warmerdam - - * libtiff/libtiff.def: Add TIFFUnsetField. - -2009-05-03 Frank Warmerdam - - * libtiff/{tif_jpeg.c,tif_ojpeg.c,tif_getimage.c}: Fixed various - error reports to use "%s" as format string. - http://trac.osgeo.org/gdal/ticket/2976 - -2009-03-12 Frank Warmerdam - - * libtiff/{tif_fax3.c,tif_jpeg.c,tif_ojpeg.c}: Fix printdir chaining - for some codecs (#2020). - -2009-02-12 Frank Warmerdam - - * libtiff/tif_luv.c: Fix handling of tiled logluv images. - http://bugzilla.maptools.org/show_bug.cgi?id=2005 - -2009-02-09 Frank Warmerdam - - * libtiff/tif_dirread.c: Improve allocation safety when allocated - buffer for large tags. (#1998) Related to (#1993) - -2009-02-06 Frank Warmerdam - - * tools/tiffcrop.c: Don't default image->res_unit to INCH. Now the - test suite should pass. - -2009-02-05 Frank Warmerdam - - * libtiff/tif_dirread.c: Re-incorporated a sanity check on tag size, - but at the 2GB boundary to avoid overflow on 32bit systems. - http://bugzilla.maptools.org/show_bug.cgi?id=1993 - - * libtiff/tif_dirread.c: Remove some assertions that blow due to - corrupt files rather than in response to library internal - inconsistencies. - http://bugzilla.maptools.org/show_bug.cgi?id=1995 - http://bugzilla.maptools.org/show_bug.cgi?id=1991 - - * libtiff/tif_dirread.c: Fixed testing for failed result from - TIFFReadDirectoryFindFieldInfo(). - http://bugzilla.maptools.org/show_bug.cgi?id=1992 - -2009-01-23 Frank Warmerdam - - * libtiff/tif_predict.c: Add support for 32bit integer horz. predictors. - http://bugzilla.maptools.org/show_bug.cgi?id=1911 - - * libtiff/tif_dirwrite.c: Fix byte swapping of next directory offset. - - http://bugzilla.maptools.org/show_bug.cgi?id=1924 - - * tools/tiffcrop.c: initialize xres/yres values. - - * test/*.sh - default ${srcdir} to local directory. - - * test/common.sh - start verbose mode after common settings. - - * libtiff/tif_dirinfo.c: Replace lfind() with local equivelent to - avoid type mismatches on different platforms. - http://bugzilla.maptools.org/show_bug.cgi?id=1889 - -2009-01-22 Frank Warmerdam - - * tools/{fax2tiff.c,thumbnail.c,tiff2pdf.c,tiff2ps.c,tiffdump.c, - tiffsplit.c}: avoid warnings, mostly 32bit/64bit casting issues. - - * port,tools: Introduce libport.h, and include in tools if NEED_LIBPORT - defined, primarily to reduce prototype warnings on windows. - - * libtiff/tif_dirinfo.c,tif_dirread.c: Avoid warnings - about unused parameters, and uninitialized variables. - -2009-01-21 Bob Friesenhahn - - * test/common.sh: Execute tests like 'make VERBOSE=TRUE check' in - order to trace full execution detail while executing the test suite. - -2009-01-20 Frank Warmerdam - - * tools/tiffsplit.c: fix sampleformat to be shortv instead of longv. - -2009-01-20 Bob Friesenhahn - - * test/Makefile.am (CLEANFILES): Make sure that test output files - are removed by 'make clean' - - * Update autotools for 4.0.0 beta3 - - * 4.0.0 beta3 produced. - -2009-01-12 Bob Friesenhahn - - * test/tiffcrop.sh: New test script for tiffcrop from Richard - Nolde. - - * tools/tiff2ps.c: Remove spurious message to stderr. - -2009-01-11 Bob Friesenhahn - - * tools/tiff2ps.c: Incorporated significant functionality update - from Richard Nolde. In particular, support for rotating the image - by 90, 180, 270, and 'auto' has been added. - - * man/tiffcrop.1: Incorporated documentation updates from Richard - Nolde. - - * tools/tiffcrop.c: Incorporated significant functionality update - from Richard Nolde. - -2008-12-31 Bob Friesenhahn - - * libtiff/tiffio.h: GCC will now validate format specifications - for TIFFError(), TIFFErrorExt(), TIFFWarning(), and - TIFFWarningExt() in order to reveal bugs. - - * Many fixes throughout to work better as a 64-bit build. - -2008-12-30 Bob Friesenhahn - - * tools/{tiff2pdf.c, tiff2ps.c, tiffinfo.c}: Offset and length - tags now require 64-bit parameter rather than 32-bit. - - * libtiff/tif_dirread.c: Fixed issues with unaligned access to - 64-bit values. - - * tools/thumbnail.c: Eliminate crash noticed while running test - suite. - -2008-12-29 Bob Friesenhahn - - * libtiff/tif_ojpeg.c (OJPEGLibjpegJpegSourceMgrFillInputBuffer): - Initialize stack variables to avoid compiler warning. - - * tools/tiffinfoce.c (main): Use toff_t for offset type when - retrieving offset of EXIF IFD. - - * libtiff/tiffio.h: Undeprecate toff_t and restore its use in the - TIFFClientOpen() callback and other external function definitions. - - * tools/tiffinfo.c (main): Offset to EXIF IFD requires a 64-bit - type now. Fixes crash when dumping files containing an EXIF IFD. - - * m4/libtool.m4: Update to libtool 2.2.6. - -2008-12-21 Frank Warmerdam - - * libtiff/tif_dir.c, tiffio.h: Introduce TIFFUnsetField() function. - - * libtiff/tif_jpeg.c: Avoid errors if the application writes a full - strip for the last partial strip in a jpeg compressed file. - http://bugzilla.maptools.org/show_bug.cgi?id=1981 - -2008-10-29 Frank Warmerdam - - * libtiff/tif_flush.c: Make sure that BEENWRITING is cleared when - we take the shortcut to only update the strip/tile offsets in place. - http://trac.osgeo.org/gdal/ticket/2621 - -2008-10-21 Andrey Kiselev - - * libtiff/tif_jbig.c: Support the JBIG-KIT 2.0 (compatibility with - the older versions retained). - -2008-10-09 Frank Warmerdam - - * libtiff/tif_jpeg.c: Add #ifdefs for changes needed if using - IPP enabled version of libjpeg from Intel. - http://bugzilla.maptools.org/show_bug.cgi?id=1951 - -2008-09-05 Andrey Kiselev - - * tools/tiffsplit.c: Use byte counts of proper size (uint64). - Required for libtiff 4.0. - - * tools/tiffsplit.c: Use dynamically allocated array instead of static - when constructing output file names. - -2008-09-03 Andrey Kiselev - - * tools/tiffsplit.c: Get rid of unsafe strcpy()/strcat() calls when - doing the filename/path construction. - - * tools/tiff2pdf.c: More appropriate format string in - t2p_write_pdf_string(); avoid signed/unsigned mismatch. - - * libtiff/tif_lzw.c: Properly zero out the codetable. As per bug - - http://bugzilla.maptools.org/show_bug.cgi?id=1929 - - * libtiff/tif_lzw.c: Properly zero out the string table. Fixes - CVE-2008-2327 security issue. - -2008-09-01 Frank Warmerdam - - * libtiff/tif_dirread.c: Avoid unused TIFFReadDirEntryFloat() function. - - * libtiff/tif_dirwrite.c: modified to write IFDs as either IFD8 or IFD - depending on whether the file is bigtiff or classic tiff. - http://bugzilla.maptools.org/show_bug.cgi?id=1917 - -2008-08-12 Edward Lam - - * tools/tiffdump.c: When compiling for Microsoft Windows, apply - consistent (__int64) casting when testing if _lseeki64 has - successfully seeked as requested. This is necessary for large - file support to work since off_t is only 32-bit. - -2008-07-29 Frank Warmerdam - - * tif_strip.c: Replace assertions related to samplesperpixel != 3 or - the subsampling values not being 1, 2 or 4 (for jpeg compressed images) - with control logic to return runtime errors (c/o Even Rouault) (#1927). - -2008-06-17 Frank Warmerdam - - * tools/tiffcrop.c: Fix some portability problems. - - * libtiff/tif_ojpeg.c: Use same jpeg/win32 boolean/FAR hacks as are - used in tif_jpeg.c. - - * libtiff/tif_win32.c: Ensure TIFFOpenW() uses same FILE_SHARE flags - as TIFFOpen(). - -2008-06-01 Frank Warmerdam - - * libtiff/tif_dirwrite.c: Fix alignment problems affecting architectures - like Sparc/Solaris. - http://bugzilla.maptools.org/show_bug.cgi?id=1892 - -2008-05-27 Frank Warmerdam - - * libtiff.def: Add TIFFFindField - http://bugzilla.maptools.org/show_bug.cgi?id=1891 - -2008-05-26 Frank Warmerdam - - * tif_config.*.h, tiffconf.*.h: Remove SIZEOF_LONG definition, unused. - - * li2008-04-15 Andrey Kiselev - -btiff/tif_win32.c: Replace custom Win32 memory api with generic - POSIX one. No apparent value to use of GlobalAlloc() in the modern - age. http://bugzilla.maptools.org/show_bug.cgi?id=1885 - - * libtiff/tiffconf.vc.h: Added JBIG_SUPPORT and MDI_SUPPORT items - in windows version (care of Edward Lam). - -2008-05-24 Frank Warmerdam - - * tif_codec.c: Avoid NULL pointer dereferencing for exotic - compression codec codes. - - * tif_dirwrite.c: fix potential memory leak. - - * tif_dirread.c: Fix unchecked malloc result. - -2008-05-24 Bob Friesenhahn - - * test {tiff2pdf.sh tiff2ps-EPS1.sh tiff2ps-PS1.sh tiff2ps-PS2.sh - tiff2ps-PS3.sh tiffcp-g3-1d-fill.sh tiffcp-g3-1d.sh - tiffcp-g3-2d-fill.sh tiffcp-g3-2d.sh tiffcp-g3.sh tiffcp-g4.sh - tiffcp-split-join.sh tiffcp-split.sh tiffcp-thumbnail.sh - tiffdump.sh tiffinfo.sh}: Added more test scripts based on - suggestions from Lee Howard posted to the tiff list on 13 Sep - 2007. - -2008-05-23 Frank Warmerdam - - * libtiff/tif_fax3.c: Add an assert in an effort to detect a - possible runtime problem reported by coverity. - - * contrib/iptcutil/iptcutil.c: Fixed memory leak of str. - - * tools/tiffcrop.c, man/tiffcrop.1: Major update from Richard Nolde. - http://bugzilla.maptools.org/show_bug.cgi?id=1888 - - * tools/tiffdither.c: remove dead onestrip code. avoid memory leak. - - * tools/rgb2ycbcr.c: fix memory leak of raster buffer. - - * tools/tiffcp.c: Simplify inknames code to avoid pointless test. - Cleanup scanline allocation to avoid coverity warning. - - * tools/thumbnail.c: Check for TIFFOpen() failure. - -2008-05-18 Frank Warmerdam - - * libtiff/tif_dirinfo.c: Use TIFF_SETGET_ASCII for PIXAR_TEXTUREFORMAT - and PIXAR_WRAPMODES instead of TIFF_SETGET_UNDEFINED. Not exactly clear - why this is needed. - -2008-05-09 Bob Friesenhahn - - * Makefile.am (ACLOCAL_AMFLAGS): Libtool 2.2.4 does not like - "ACLOCAL_AMFLAGS=-I ./m4". It wants "ACLOCAL_AMFLAGS=-I m4". - -2008-04-15 Andrey Kiselev - - * test/: Test suite updated. Everything is passed now. - - * libtiff/tif_dirinfo.c: Fixed description of the - TIFFTAG_NUMBEROFINKS tag. - -2008-04-14 Andrey Kiselev - - * libtiff/{tif_dirread.c, tif_dirwrite.c, tiffiop.h}: - Get rid of some of "dereferencing type-punned" warnings by converting - tdir_offset field of TIFFDirEntry structure into union. - -2008-04-10 Andrey Kiselev - - * libtiff/{tif_flush.c, tif_dirwrite.c, tiffio.h, tiffiop.h}: - TIFFRewriteField() renamed into _TIFFRewriteField() and moved out - from the public interface. Type of its 'count' parameter changed - from uint32 to tmsize_t. - - * /libtiff/tiffiop.h: Make tif_nfields and tif_nfieldscompat fields - of the tiff structure have the size_t type instead of uint32. - -2008-04-09 Andrey Kiselev - - * tools/tiffdump.c: Added support for MSVS 6.0. - - * libtiff/tif_dirread.c: Use custom functions _TIFFUInt64ToFloat() - and _TIFFUInt64ToDouble() to convert 64-bit integers into floating - point values on MSVS 6.0 platform. - -2008-03-14 Frank Warmerdam - - * tif_dirread.c: Removed sanity checks on tags larger than 4MB in - TIFFReadDirEntryArray() since they are interfering with seemingly - legitimate files. http://trac.osgeo.org/gdal/ticket/2005 - -2008-02-09 Joris Van Damme - - * tif_dirread.c: Added handling for the case of number of values for - PageNumber tag different from 2 (previously resulted in an assert - indicating lack of handling and was forgotten about) - -2008-02-01 Frank Warmerdam - - * libtiff/tif_jpeg.c: Do not try to fixup subsampling tags based on - the actual jpeg data stream if the first strip/tile has zero size. - This is the case when GDAL creates a new file with zero sizes, closes - and reopens it. - -2008-01-07 Frank Warmerdam - - * tools/tiff2ps.c: fix up 64bit issues (from Edward Lam). - -2008-01-01 Frank Warmerdam - - * libtiff/tif_dirwrite.c: #ifdef out lots of unused functions. - - * Makefile.vc, libtiff/Makefile.vc, tools/Makefile.vc: Improve clean - targets. - - * tools/tiffinfo.c, tools/tiffcmp.c, tools/gif2tiff.c, tools/bmp2tiff.c - tools/tiff2pdf.c: Fix 64-bit warnings when compiling under MSVC 2005 - (x64). - - * tools/tiffset.c: Changes to reflect the fact that TIFFFieldWithTag() - and TIFFFieldWithName() now return TIFFField pointers instead of - TIFFFieldInfo pointers. - - * tools/tiffdump.c: Added ssize_t typedef on Windows since it doesn't - exist. This makes it compile again on Windows - - * tif_aux.c, tif_getimage.c, tif_next.c, tif_predict.c, tif_win32.c, - tiffconf.vc.h: Various 64bit fixes from Edward Lam identified on win64. - - * test/rewrite_tag.c: New test for TIFFRewriteField(). - -2007-12-31 Frank Warmerdam - - * tif_dirwrite.c: Added TIFFRewriteField(). This new function - rewrites one field "on disk" updating an existing directory - entry. Lots of limitations still... - - * tiffiop.h, tif_write.c, tif_dirread.c, tif_flush.c: Keep track of - TIFF_DIRTYSTRIP separately from TIFF_DIRTYDIRECT to indicate that - the strip offset/size values are dirty but nothing else about the - directory is dirty. In flush handle "just stripmaps dirty" as a - special case that just rewrites these values without otherwise - modifying the directory on disk using TIFFRewriteField(). - - We also modify logic so that in update mode the directory is not - marked dirty on read, but only when something is changed. This - means we need to keep track of updates to the stripmap stuff in - TIFFAppendToStrip(). - -2007-12-10 Frank Warmerdam - - * tif_jpeg.c: Improve ability to switch between encoding and decoding - in the jpeg code (gdal bug #2033). - -2007-11-23 Frank Warmerdam - - * tif_dir.c, tif_dirread.c, tif_dirwrite.c, tif_read.c, tif_write.c, - tiffiop.h: Added TIFF_BUF4WRITE flag to indicate if contents of the - rawcp/rawcc buffer are for writing and thus may require flushing. - Necessary to distinguish whether they need to be written to disk when - in mixed read/write mode and doing a mixture of writing followed by - reading. http://trac.osgeo.org/gdal/ticket/1758 - -2007-11-23 Andrey Kiselev - - * configure.com, libtiff/tif_vms.c: Better OpenVMS support. Patches - from Alexey Chupahin. - -2007-11-02 Frank Warmerdam - - * tif_write.c: Rip out the fancy logic in TIFFAppendToStrip() for - establishing if an existing tile can be rewritten to the same location - by comparing the current size to all the other blocks in the same - directory. This is dangerous in many situations and can easily - corrupt a file. (observed in esoteric GDAL situation that's hard to - document). This change involves leaving the stripbytecount[] values - unaltered till TIFFAppendToStrip(). Now we only write a block back - to the same location it used to be at if the new data is the same - size or smaller - otherwise we move it to the end of file. - - * tif_dirwrite.c: Try to avoid writing out a full readbuffer of tile - data when writing the directory just because we have BEENWRITING at - some point in the past. This was causing odd junk to be written out - in a tile of data when a single tile had an interleaving of reading - and writing with reading last. (highlighted by gdal - autotest/gcore/tif_write.py test 7. - - * tif_predict.c: use working buffer in PredictorEncodeTile to avoid - modifying callers buffer. - http://trac.osgeo.org/gdal/ticket/1965 - - * tif_predict.c/h: more fixes related to last item, keeping a - distinct pfunc for encode and decode cases as these were getting - mixed up sometimes. - http://trac.osgeo.org/gdal/ticket/1948 - -2007-11-01 Frank Warmerdam - - * tif_predict.c/h, tif_lzw.c, tif_zip.c: Improvements so that - predictor based encoding and decoding works in read-write update - mode properly. - http://trac.osgeo.org/gdal/ticket/1948 - -2007-10-24 Joris Van Damme - - * tif_dirread.c: Fixed problem with bogus file triggering - assert(td->td_planarconfig == PLANARCONFIG_CONTIG) in - ChopUpSingleUncompressedStrip - -2007-10-22 Joris Van Damme - - * tif_jpeg.c: Resolved buffer incrementation bug that lead to faulty images - at best, access violation at worst, when subsampled JPEG compressed imagery - is decoded without the JPEG_COLORMODE feature - -2007-10-11 Frank Warmerdam - - * html/index.html: Update "people responsible" section. - -2007-10-05 Frank Warmerdam - - * tools/tiff2pdf.c: Fix problem with alpha setting in some cases - as reported on the mailing list. - -2007-10-01 Joris Van Damme - - * changed some more incorrect %lud printf flags to %lu - -2007-09-29 Joris Van Damme - - * tif_dirread.c: Strip chopping interfered badly with uncompressed - subsampled images because it tried to divide subsampled rowblocks, - leading to all sorts of errors throughout the library for these - images. Fixed by making strip chopping divide in row counts that - are a multiple of vertical subsampling value. - -2007-09-28 Joris Van Damme - - * tif_dirread.c: Logical cast working around compiler warning - - * tif_read.c: Correction of some error flags and parameter lists - -2007-09-27 Joris Van Damme - - * tif_dirread.c: Made calculation of td_maxsamplevalue more robust - when dealing with large bitspersample values, shutting up purification - tools that warn about truncation, though it remains incorrect and - indicates a conceptual problem there. - - * tif_open.c: Moved early exit in case of 'h' flag (to disable reading - of first IFD) to proper place because it badly interfered with memory - mapping, resulting in mapping flag even with dummy mapping functions - that returned 0 whilst at the same time the mapping tif_size wasn't - set, thus resulting in continuous incorrect beyond-eof errors. - -2007-09-24 Joris Van Damme - - * tif_dirinfo.c: Fixed (MSVC) compiler reports about - inconsistent use of const in tiffFields and exifFields definition - -2007-09-20 Frank Warmerdam - - * tif_dirwrite.c: Always write tile/strip offsets and sizes - using LONG8 type when output format is BigTIFF. The - TIFFWriteDirectoryTagLongLong8Array() function was restructured - accordingly. - - * tif_dirread.c: Improvements to error reporting text in - TIFFFetchDirectory(). - -2007-09-19 Bob Friesenhahn - - * test/images: Added a small collection of test images for use by - test programs and scripts. - * test/tiffinfo.sh: A trivial example test script. - * test/common.sh: Added small script for setting the environment - used by script-based tests. - -2007-08-24 Frank Warmerdam - - * tif_dirwrite.c: Write the tif_nextdiroff value instead of a fixed - zero when writing directory contents to preserve the ability to - rewrite directories in place, even in the middle of a directory - chain. - - * tif_dirinfo.c: _TIFFMergeFields() now only merges in field - definitions that are missing. Existing definitions are silently - ignored. - - * tif_dirread.c: Add runtime error for fields for which no definition - is found (in addition to an assert for developers) in - TIFFFetchNormalTag(). Not sure if this is needed, but it seems - prudent. - -2007-08-10 Joris Van Damme - - * libtiff/tif_getimage.c: removed SubsamplingHor and SubsamplingVer - from _TIFFRGBAImage structure to revert unwanted ABI change. - -2007-08-10 Joris Van Damme - - * libtiff/tif_win32.c: use SetFilePointer instead of - SetFilePointerEx, as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1580 - -2007-07-19 Andrey Kiselev - - * libtiff/tif_stream.cxx: Put all callback functions declarations - inside extern "C" block. - - * libtiff/{tif_lzw.c, tif_luv.c, tif_dumpmode.c, tif_print.c, - tif_read.c, tif_strip.c, tif_thunder.c}: Use "%I64d" printf() - formatter instead of "%lld" with MSVC compiler. - - * libtiff/{tiffiop.h, tif_aux.c}: Added _TIFFUInt64ToFloat() and - _TIFFUInt64ToDouble() functions. - -2007-07-18 Andrey Kiselev - - * libtiff/tif_dirread.c: Handle the case of MSVC 6 when using 64-bit - integer constants. - - * libtiff/{Makefile.am, Makefile.v}: Do not distribute tiffconf.h, - remove tif_config.h/tiffconf.h during cleaning. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1573 - - * libtiff/tif_unix.c: Do not use O_LARGEFILE. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1577 - -2007-07-13 Andrey Kiselev - - * libtiff 4.0.0alpha released. - -2007-07-12 Andrey Kiselev - - * tools/tiff2pdf.c: Added missed extern optind as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1567 - - * libtiff/{tif_close.c, tif_dirinfo.c, tiffiop.c, tif_dirread.c, - tif_dir.h, tif_dir.c, tiffio.h}: Transition to the new-style tag - extending scheme completed. - -2007-07-11 Bob Friesenhahn - - * libtiff/tif_stream.cxx: Adapt to use toff_t again. Update to - use standard C++ library size types and attempt to detect overflow - cases. - -2007-07-08 Andrey Kiselev - - * libtiff/{tif_jpeg.c, tif_dir.h, tif_dir.c, tif_dirinfo.c, tiffio.h, - tif_ojpeg.c, tif_print.c, tif_fax3.c, tif_dirread.c}: More work on new - tag extending scheme. Use the new scheme everywhere. - - * libtiff/{tif_zip.c, tif_predict.c, tif_pixarlog.c, tif_luv.c, - tif_fax3.c, tif_dirread.c, tif_dirwrite.c, tif_close.c, tif_ojpeg.c, - tif_jpeg.c, tif_dirinfo.c, tif_dir.h, tiffio.h, tiffiop.h}: - TIFFFIeldInfo structure replaced with TIFFField structure. - TIFFFieldInfo retained for the backward compatibility. - -2007-07-05 Bob Friesenhahn - - * tools/tiff2pdf.c: Fix a compile problem when JPEG_SUPPORT is not - defined. - -2007-07-04 Andrey Kiselev - - * libtiff/{tif_dir.c, tiff.h, tiffio.h, libtiff.def}: Unused - TIFFReassignTagToIgnore() function and TIFFIgnoreSense enumeration - removed. - - * libtiff/{tif_dirinfo.c, tif_fax3.c, tif_jbig.c, tif_jpeg.c}: Move - tags TIFFTAG_FAXRECVPARAMS, TIFFTAG_FAXSUBADDRESS, - TIFFTAG_FAXRECVTIME and TIFFTAG_FAXDCS to the common tag directory. - These tags are not codec-specific and relate to image content, so - process them as other normal tags. - - * libtiff/{tiffio.h, tif_dir.h}: TIFFTagValue structure moved from the - public tiffio.h to private tif_dir.h. - - * contrib/{acorn, mac-cw, mac-mpw}: Removed as unmaintained and - outdated. - -2007-07-03 Andrey Kiselev - - * libtiff{tif_acorn.c, tif_apple.c, tif_atari.c, tif_msdos.c, - tif_win3.c}: Obsoleted portability stuff removed. - - * tools/tiff2ps.c: Added support 16-bit images as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1566 - - Patch from William Bader. - - * tools/tiff2pdf.c: Fix for TIFFTAG_JPEGTABLES tag fetching and - significant upgrade of the whole utility as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1560 - - Now we don't need tiffiop.h in tiff2pdf anymore and will open output - PDF file using TIFFClientOpen() machinery as it is implemented - by Leon Bottou. - -2007-06-26 Bob Friesenhahn - - * configure.ac: Fix typo when substituting value for unsigned 8 bit type. - Added support for a TIFF_PTRDIFF_T type to use when doing pointer arithmetic. - Added support for a TIFF_SSIZE_T in order to return memory sizes but still - allow returning -1 for errors. - * libtiff/tiffconf.vc.h: Add porting type defintions for WIN32. - -2007-06-25 Bob Friesenhahn - - * port/strtoull.c: New porting function in case strtoull() is not - available on the target system. - * configure.ac: Add configure support for determining sized types - in a portable way and performing necessary substitutions in - tif_config.h and tiffconf.h. Updated tiff.h to use the new - definitions. - -2007-04-27 Andrey Kiselev - - * tools/tiff2pdf.c: Check the tmpfile() return status as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=154 - -2007-04-07 Andrey Kiselev - - * libtiff/{tif_dir.h, tif_dirread.c, tif_dirinfo.c, tif_jpeg.c, - tif_fax3.c, tif_jbig.c, tif_luv.c, tif_ojpeg.c, tif_pixarlog.c, - tif_predict.c, tif_zip.c}: Finally fix bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1274 - - by introducing _TIFFMergeFieldInfo() returning integer error status - instead of void in case of problems with field merging (e.g., if the - field with such a tag already registered). TIFFMergeFieldInfo() in - public API remains void. Use _TIFFMergeFieldInfo() everywhere and - check returned value. - -2007-04-07 Frank Warmerdam - - * contrib/addtiffo/tif_overview.c: Fix problems with odd sized output - blocks in TIFF_DownSample_Subsampled() (bug 1542). - -2007-04-06 Frank Warmerdam - - * libtiff/tif_jpeg.c: Changed JPEGInitializeLibJPEG() so that it - will convert from decompressor to compressor or compress to decompress - if required by the force arguments. This works around a problem in - where the JPEGFixupTestSubsampling() may cause a decompressor to - be setup on a directory when later a compressor is required with the - force flag set. Occurs with the addtiffo program for instance. - -2007-04-06 Andrey Kiselev - - * tools/tiffcrop.c, man/tiffcrop.1: Significant update in - functionality from Richard Nolde. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1525 - -2007-03-28 Frank Warmerdam - - * libtiff/tif_fax3.c: "inline static" -> "static inline" for IRIC CC. - -2007-03-17 Joris Van Damme - - * start of BigTIFF upgrade - CVS HEAD unstable until further notice - -2007-03-07 Joris Van Damme - - * libtiff/tif_getimage.c: workaround for 'Fractional scanline' error reading - OJPEG images with rowsperstrip that is not a multiple of vertical subsampling - factor. This bug is mentioned in: - http://bugzilla.remotesensing.org/show_bug.cgi?id=1390 - http://www.asmail.be/msg0054766825.html - -2007-03-07 Joris Van Damme - - * libtiff/tif_win32.c: made inclusion of windows.h unconditional - - * libtiff/tif_win32.c: replaced preprocessor indication for consiously - unused arguments by standard C indication for the same - -2007-02-27 Andrey Kiselev - - * libtiff/tif_dirread.c: Use uint32 type instead of tsize_t in byte - counters in TIFFFetchData(). Should finally fix the issue - - http://bugzilla.remotesensing.org/show_bug.cgi?id=890 - -2007-02-24 Andrey Kiselev - - * tools/tiffset.c: Properly handle tags with TIFF_VARIABLE writecount. - As per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1350 - - * libtiff/tif_dirread.c: Added special function to handle - SubjectDistance EXIF tag as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1362 - - * tools/tiff2pdf.c: Do not assume inches when the resolution units - do not specified. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1366 - - * tools/{tiffcp.c, tiffcrop.c}: Do not change RowsPerStrip value if - it was set as infinite. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1368 - - * tools/tiffcrop.c, man/tiffcrop.1: New tiffcrop utility contributed - by Richard Nolde. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1383 - -2007-02-22 Andrey Kiselev - - * libtiff/tif_dir.c: Workaround for incorrect TIFFs with - ExtraSamples == 999 produced by Corel Draw. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1490 - - * libtiff/{tif_dirread.c, tif_read.c}: Type of the byte counters - changed from tsize_t to uint32 to be able to work with data arrays - larger than 2GB. Fixes bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=890 - - Idea submitted by Matt Hancher. - -2007-01-31 Andrey Kiselev - - * tools/tif2rgba.c: This utility does not work properly on big-endian - architectures. It was fixed including the bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1149 - -2007-01-15 Mateusz Loskot - - * Submitted libtiff port for Windows CE platform - * libtiff/tif_config.wince.h: Added configuration header for WinCE. - * libtiff/tiffconf.wince.h: Ported old configuration header for WinCE. - * libtiff/tif_wince.c: Added WinCE-specific implementation of some - functons from tif_win32.c. - * libtiff/tif_win32.c: Disabled some functions already reimplemented in tif_wince.c. - * libtiff/tiffiop.h, port/lfind.c: Added conditional include of some - standard header files for Windows CE build. - * tools/tiffinfoce.c: Ported tiffinfo utility for Windows CE. - -2006-11-19 Frank Warmerdam - - * libtiff/tif_write.c: TIFFAppendToStrip() - clear sorted flag if - we move a strip. - http://bugzilla.remotesensing.org/show_bug.cgi?id=1359 - -2006-10-13 Andrey Kiselev - - * libtiff/tif_dir.c: More fixes for vulnerabilities, reported - in Gentoo bug (): - - http://bugs.gentoo.org/show_bug.cgi?id=142383 - - * libtiff/contrib/dbs/xtiff/xtiff.c: Make xtiff utility compilable. - Though it is still far from the state of being working and useful. - -2006-10-12 Andrey Kiselev - - * libtiff/tif_fax3.c: Save the state of printdir codec dependent - method. - - * libtiff/tif_jpeg.c: Save the state of printdir codec dependent method - as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1273 - - * libtiff/tif_win32.c: Fixed problem with offset value manipulation - as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1322 - - * libtiff/{tif_read.c, tif_jpeg.c, tif_dir.c}: More fixes for - vulnerabilities, reported in Gentoo bug (): - - http://bugs.gentoo.org/show_bug.cgi?id=142383 - -2006-09-28 Andrey Kiselev - - * libtiff/{tif_fax3.c, tif_next.c, tif_pixarlog.c}: Fixed multiple - vulnerabilities, as per Gentoo bug (): - - http://bugs.gentoo.org/show_bug.cgi?id=142383 - -2006-09-27 Frank Warmerdam - - * libtiff/tif_lzw.c, libtiff/tif_zip.c: Fixed problems with mixing - encoding and decoding on the same read-write TIFF handle. The LZW - code can now maintain encode and decode state at the same time. The - ZIP code will switch back and forth as needed. - http://bugzilla.remotesensing.org/show_bug.cgi?id=757 - -2006-09-20 Frank Warmerdam - - * libtiff: Rename config.h.vc and tif_config.h.vc to config.vc.h and - tif_config.vc.h for easier identification by folks using an IDE. - -2006-07-25 Frank Warmerdam - - * tif_msdos.c: Avoid handle leak for failed opens. c/o Thierry Pierron - -2006-07-19 Frank Warmerdam - - * tif_dirwrite.c: take care not to flush out buffer of strip/tile - data in _TIFFWriteDirectory if TIFF_BEENWRITING not set. Relates - to bug report by Peng Gao with black strip at bottom of images. - -2006-07-12 Frank Warmerdam - - * tif_dirwrite.c: make sure to use uint32 for wordcount in - TIFFWriteNormanTag if writecount is VARIABLE2 for ASCII fields. - It already seems to have been done for other field types. Needed - for "tiffset" on files with geotiff ascii text. - -2006-07-04 Bob Friesenhahn - - * {configure.ac, libtiff/tif_config.h.vc, libtiff/tif_jbig.c} - (JBIGDecode): jbg_newlen is not available in older JBIG-KIT and - its use does not appear to be required, so use it only when it is - available. - -2006-06-24 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Added missed EXIF tag ColorSpace (40961). - - * libtiff/tif_dirread.c: Move IFD fetching code in the separate - function TIFFFetchDirectory() avoiding code duplication in - TIFFReadDirectory() and TIFFReadCustomDirectory(). - -2006-06-19 Frank Warmerdam - - * tools/tiff2pdf.c: Fix handling of -q values. - http://bugzilla.remotesensing.org/show_bug.cgi?id=587 - -2006-06-17 Frank Warmerdam - - * tif_readdir.c: Added case in EstimateStripByteCounts() for tiled - files. Modified TIFFReadDirectory() to not invoke - EstimateStripByteCounts() for case where entry 0 and 1 are unequal - but one of them is zero. - http://bugzilla.remotesensing.org/show_bug.cgi?id=1204 - -2006-06-08 Andrey Kiselev - - * libtiff/{tif_open.c, tif_dirread.c, tiffiop.h}: Move IFD looping - checking code in the separate function TIFFCheckDirOffset(). - - * libtiff/tif_aux.c: Added _TIFFCheckRealloc() function. - - * tools/tiffcmp.c: Fixed floating point comparison logic as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1191 - - * libtiff/tif_fax3.c: Fixed problems in fax decoder as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1194 - - * tools/tiff2pdf.c: Fixed buffer overflow condition in - t2p_write_pdf_string() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1196 - -2006-06-07 Andrey Kiselev - - * {configure, configure.ac, libtiff/tif_jbig.c, tools/tiffcp.c}: Added - support for JBIG compression scheme (34661 code) contributed by Lee - Howard. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=896 - - * configure, configure.ac: OJPEG support enabled by default. - - * contrib/ojpeg/: Removed. New OJPEG support does not need this patch. - -2006-06-03 Bob Friesenhahn - - * libtiff/{tif_dirinfo.c, tif_print.c} : Fix crash in - TIFFPrintDirectory(). Joris Van Damme authored the fix. - -2006-04-21 Andrey Kiselev - - * tools/tiff2pdf.c: Unified line ending characters (always use '\n') - as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1163 - - * README.vms, Makefile.am, configure.com, libtiff/{Makefile.am, - tif_config.h-vms, tif_stream.cxx, tif_vms.c, tiffconf.h-vms}: - Added support for OpenVMS by Alexey Chupahin, elvis_75@mail.ru. - -2006-04-20 Andrey Kiselev - - * tools/{fax2ps.c, fax2tiff.c, ppm2tiff.c, ras2tiff.c, tiff2pdf.c}: - Properly set the binary mode for stdin stream as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1141 - - * man/{bmp2tiff.1, fax2ps.1, fax2tiff.1, gif2tiff.1, ras2tiff.1, - raw2tiff.1, rgb2ycbcr.1, sgi2tiff.1, tiff2bw.1, tiff2pdf.1, tiff2ps.1, - tiff2rgba.1, tiffcmp.1, tiffcp.1, tiffdither.1, tiffdump.1, tiffgt.1, - tiffset.1}: Improvements in page formatting as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1140 - - * html/tools.html, html/man/Makefile.am, tools/tiff2pdf.c: Fixed - typos as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1139 - -2006-04-18 Frank Warmerdam - - * nmake.opt: use /EHsc for VS2005 compatibility. Also define - _CRT_SECURE_NO_DEPRECATE to avoid noise on VS2005. - -2006-04-12 Joris Van Damme - - * libtiff/tif_getimage.c: Added support for planarconfig separate - non-subsampled YCbCr (i.e. separate YCbCr with subsampling [1,1]) - -2006-04-11 Joris Van Damme - - * libtiff/tif_getimage.c: Revision of all RGB(A) put routines - - Conversion of unassociated alpha to associated alpha now done with - more performant LUT, and calculation more correct - - Conversion of 16bit data to 8bit data now done with - more performant LUT, and calculation more correct - - Bugfix of handling of 16bit RGB with unassociated alpha - -2006-04-11 Joris Van Damme - - * libtiff/tif_getimage.c: - - When there is no alpha, gtTileSeparate and gtStripSeparate allocated - buffer for alpha strile and filled it, only to never read it back. - Removed allocation and fill. - - Minor rename of vars in gtTileSeparate and gtStripSeparate - anticipating planned functionality extension - -2006-04-08 Joris Van Damme - - * libtiff/tif_getimage.c: renamed pickTileContigCase to PickContigCase - and pickTileSeparateCase to PickSeparateCase as both work on strips as - well - - * libtiff/tif_getimage.c: moved img->get selection from - TIFFRGBAImageBegin into PickContigCase and PickSeparateCase to create - logical hook for planned functionality extension - -2006-04-08 Joris Van Damme - - * libtiff/tif_ojpeg.c: resolved memory leak that was a consequence - of inappropriate use of jpeg_abort instead of jpeg_destroy - -2006-04-07 Joris Van Damme - - * libtiff/tif_getimage.c: replaced usage of TIFFScanlineSize in - gtStripContig with TIFFNewScanlineSize so as to fix buggy behaviour - on subsampled images - this ought to get sorted when we feel brave - enough to replace TIFFScanlineSize alltogether - - * libtiff/tif_ojpeg.c: fixed bug in OJPEGReadSkip - -2006-04-04 Joris Van Damme - - * libtiff/tiffio.h: added new type tstrile_t - - * libtiff/tif_dir.h: changed types of td_stripsperimage and td_nstrips - to new tstrile_t, types of td_stripoffset and td_stripbytecount to - toff_t* - - * libtiff/tif_ojpeg.c: totally new implementation - - * libtiff/tif_dirread.c: added several hacks to suit new support of - OJPEG - - * libtiff/tif_getimage.c: removed TIFFTAG_JPEGCOLORMODE handling - of OJPEG images in favor of tif_getimage.c native handling of - YCbCr and desubsampling - -2006-03-29 Frank Warmerdam - - * libtiff/tif_jpeg.c: JPEGVSetField() so that altering the photometric - interpretation causes the "upsampled" flag to be recomputed. Fixes - peculiar bug where photometric flag had to be set before jpegcolormode - flag. - -2006-03-25 Joris Van Damme - - * libtiff/tif_jpeg.c: strip size related bugfix in encode raw - - * libtiff/tif_strip.c: temporarilly added two new versions of - TIFFScanlineSize - - TIFFNewScanlineSize: proposed new version, after all related - issues and side-effects are sorted out - - TIFFOldScanlineSize: old version, from prior to 2006-03-21 change - This needs further sorting out. - -2006-03-25 Joris Van Damme - - * contrib/addtiffo/tif_ovrcache.c: bugfix to correctly pass size - of last truncated strip data to TIFFWriteEncodedStrip - -2006-03-25 Joris Van Damme - - * libtiff/{tif_jpeg.c, tif_strip.c}: bugfix of tif_jpeg decode raw - -2006-03-25 Joris Van Damme - - * libtiff/tif_getimage.c: bugfix/rewrite of putcontig8bitYCbCr22tile - - * libtiff/tif_getimage.c: added putcontig8bitYCbCr12tile - - * libtiff/tif_read.c: added support for new TIFF_NOREADRAW flag to - prepare the path for new tif_ojpeg.c - -2006-03-23 Andrey Kiselev - - * libtiff 3.8.2 released. - - * tools/Makefile.am: Use runtime paths linker flags when rpath - option enabled. - -2006-03-21 Andrey Kiselev - - * libtiff/libtiff.def: Added missed exports as per bug - http://bugzilla.remotesensing.org/attachment.cgi?id=337 - - * contrib/addtiffo/Makefile.vc, libtiff/Makefile.vc, port/Makefile.vc, - tools/Makefile.vc: Makefiles improvements as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1128 - - * nmake.opt libtiff/{tif_config.h.vc, tif_unix.c, tiffio.h}, - tools/{fax2ps.c, fax2tiff.c, tiff2pdf.c}: Fixed win32 I/O functions - usage as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1127 - - * libtiff/tif_strip.c: Take subsampling in account when calculating - TIFFScanlineSize(). - - * tools/tiffcp.c: Do not set RowsPerStrip bigger than image length. - -2006-03-17 Andrey Kiselev - - * tools/fax2tiff.c: Fixed wrong TIFFerror() invocations as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1125 - - * tools/fax2ps.c: Fixed reading the input stream from stdin as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1124 - -2006-03-16 Andrey Kiselev - - * libtiff/tiffiop.h: Added decalration for - _TIFFSetDefaultCompressionState(). - - * libtiff/{tif_jpeg.c, tif_fax3.c, tif_zip.c, tif_pixarlog.c, - tif_lzw.c, tif_luv.c}: Use _TIFFSetDefaultCompressionState() in all - codec cleanup methods. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1120 - -2006-03-15 Andrey Kiselev - - * libtiff/tif_jpeg.c: Do not cleanup codec state in TIFFInitJPEG(). As - per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1119 - - * tools/raw2tiff.c: Do not set RowsPerStrip larger than ImageLength. - As per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1110 - - * libtiff/tiffiop.h: dblparam_t typedef removed; GLOBALDATA macro - removed; move here the STRIP_SIZE_DEFAULT macro definition. - - * libtiff/{tif_dirread.c, tif_strip.c}: Removed STRIP_SIZE_DEFAULT - macro definition. - - * libtiff/tif_dir.c: Use double type instead of dblparam_t. - -2006-03-14 Andrey Kiselev - - * libtiff/tif_dirread.c: Do not check the PlanarConfig tag presence - in TIFFReadDirectory, because it is always set at the start of - function and we allow TIFFs without that tag set. - -2005-03-13 Andrey Kiselev - - * libtiff 3.8.1 released. - -2006-03-07 Andrey Kiselev - - * libtiff/tif_dirread.c: Fixed error reporting in TIFFFetchAnyArray() - function as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1102 - - * libtiff/tif_dirread.c: More wise check for integer overflow - condition as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1102 - - * libtiff/{tif_jpeg.c, tif_pixarlog.c, tif_fax3.c, tif_zip.c}: - Properly restore setfield/getfield methods in cleanup functions. As - per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1102 - -2006-03-03 Andrey Kiselev - - * libtiff/{tif_predict.c, tif_predict.h}: Added new function - TIFFPredictorCleanup() to restore parent decode/encode/field methods. - - * libtiff/{tif_lzw.c, tif_pixarlog.c, tif_zip.c}: Use - TIFFPredictorCleanup() in codec cleanup methods. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1102 - - * libtiff/tif_dirread.c: Fixed integer overflow condition in - TIFFFetchData() function. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1102 - -2006-03-01 Andrey Kiselev - - * libtiff/tif_ojpeg.c: Set the ReferenceBlackWhite with the - TIFFSetField() method, not directly. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1043 - - * tools/ppm2tiff.c: Added support for PBM files as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1044 - -2006-02-27 Andrey Kiselev - - * libtiff/tif_write.c: Small code rearrangement in TIFFWriteScanline() - to avoid crash as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1081. - -2006-02-26 Andrey Kiselev - - * tools/tiff2pdf.c: Functions t2p_sample_rgbaa_to_rgb() and - t2p_sample_rgba_to_rgb() was used in place of each other, that was - resulted in problems with RGBA images with associated alpha. - As per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1097 - -2006-02-23 Andrey Kiselev - - * libtiff/tif_dirwrite.c: Properly write TIFFTAG_DOTRANGE tag as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1088. - - * libtiff/tif_print.c: Properly read TIFFTAG_PAGENUMBER, - TIFFTAG_HALFTONEHINTS, TIFFTAG_YCBCRSUBSAMPLING and TIFFTAG_DOTRANGE - tags as per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1088. - - * tools/tiff2ps.c: Properly scale all the pages when converting - multipage TIFF with /width/height/center options set. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1080 - -2006-02-15 Andrey Kiselev - - * tools/tiff2pdf.c: Do not create output file until all option checks - will be done. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1072 - - * tools/bmp2tiff.c: Added ability to create multipage TIFFs from the - list of input files as per bug: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1077 - -2006-02-09 Andrey Kiselev - - * libtiff/tif_tile.c: Fix error reporting in TIFFCheckTile() as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1063. - - * tools/tiffgt.c: Avoid crashing in case of image unsupported by - TIFFRGBAImage interface. - - * libtiff/tif_color.c: Avoid overflow in case of wrong input as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=1065. - -2006-02-07 Frank Warmerdam - - * tools/tiff2pdf.c: Fixed support for non-YCbCr encoded JPEG - compressed TIFF files, per submission from Dan Cobra. - -2006-02-07 Andrey Kiselev - - * libtiff/{tif_dirread.c, tif_packbits.c, tif_win32.c}: Properly - cast values to avoid warnings. As per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1033. - - * libtiff/tif_dirinfo.c: Use TIFF_NOTYPE instead of 0 when - appropriate. As per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1033. - - * libtiff/tif_aux.c: Fixed type of temporary variable in - _TIFFCheckMalloc() as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=1033. - -2006-02-06 Andrey Kiselev - - * libtiff/tif_aux.c: Return static array when fetching default - YCbCrCoefficients (another problem, reported a the - http://bugzilla.remotesensing.org/show_bug.cgi?id=1029 entry). - -2006-02-03 Andrey Kiselev - - * libtiff/tif_dir.c: Special handling for PageNumber, HalftoneHints, - YCbCrSubsampling and DotRange tags as per bugs - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1029 - http://bugzilla.remotesensing.org/show_bug.cgi?id=1034 - - * libtiff/tif_dirread.c: Use _TIFFGetExifFieldInfo() instead of - _TIFFGetFieldInfo() in TIFFReadEXIFDirectory() call as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1026. - -2006-01-23 Andrey Kiselev - - * libtool related stuff updated from the 2.1a branch. - -2006-01-11 Frank Warmerdam - - * tools/bmp2tiff,pal2rgb,ppm2tiff,ras2tiff,raw2tiff,sgi2tiff, - tiff2bw,tiffcp: Fixed jpeg option processing so -c jpeg:r:50 works - properly as per bug: - http://bugzilla.remotesensing.org/show_bug.cgi?id=1025 - -2006-01-09 Bob Friesenhahn - - * configure.ac: Fix with_default_strip_size comparison as reported - by Norihiko Murase. - -2006-01-08 Bob Friesenhahn - - * test/Makefile.am (LIBTIFF): Due to linking against libtiff - incorrectly, tests were not actually testing the uninstalled - libtiff. Now they are. - -2006-01-04 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Change definitions for TIFFTAG_ICCPROFILE, - TIFFTAG_PHOTOSHOP, TIFFTAG_RICHTIFFIPTC, TIFFTAG_XMLPACKET: readcount - should be uint32 value. - -2006-01-02 Bob Friesenhahn - - * html/man/Makefile.am (htmldoc): Fix htmldoc rule so that it can - be used if build directory is not the same as source directory. - * man/{TIFFGetField.3tiff, TIFFSetField.3tiff}: Documented - TIFFTAG_PHOTOSHOP, TIFFTAG_RICHTIFFIPTC, and TIFFTAG_XMLPACKET, - and re-sorted tag names in alphabetical order. - -2005-12-29 Andrey Kiselev - - * libtiff 3.8.0 released. - -2005-12-28 Bob Friesenhahn - - * tools/bmp2tiff.c (main): Fixed warning regarding returning - inconsistent types from a condition. - * tools/tiffcmp.c (CheckLongTag): Eliminate warning due to printf - format. - * tools/bmp2tiff.c: Reduce compilation warnings on big-endian CPUs. - -2005-12-28 Joris Van Damme - - * html/{index.html, support.hml, libtiff.html}: Cleaned up HTML - -2005-12-27 Andrey Kiselev - - * libtiff/tiffio.h: Added VC_EXTRALEAN definition before including - windows.h, to reduce the compile time. - -2005-12-26 Bob Friesenhahn - - * libtiff/tif_jpeg.c: Improve compilation under MinGW. - -2005-12-26 Andrey Kiselev - - * libtiff/{tif_dir.c, tif_dir.h, tif_dirread.c, tif_dirinfo.c}: - tiffFieldInfo and exifFieldInfo arrays definitions moved back to - tif_dirinfo.c; added _TIFFGetFieldInfo() and _TIFFGetExifFieldInfo() - private functions to retrieve FieldInfo arrays. - -2005-12-24 Bob Friesenhahn - - * html/build.html: Added some additional instructions for when - building using MSVC under Windows. Also fixed two HTML syntax - errors and used HTML Tidy to tidy up the HTML syntax and - formatting. - -2005-12-24 Andrey Kiselev - - * libtiff/{tif_aux.c, tif_dir.c, tif_dir.h, tif_dirwrite.c, - tif_print.c, tif_getimage.c}: Make InkSet, NumberOfInks, DotRange and - StoNits tags custom. - -2005-12-23 Andrey Kiselev - - * libtiff/{tif_aux.c, tif_dir.c, tif_dir.h, tif_print.c}: Make - WhitePoint tag custom. - - * libtiff/{tif_dir.h, tiff.h}: More EXIF tags added. - -2005-12-23 Joris Van Damme - - * libtiff/tiffio.h: fixed typo that potentially resulted in - redefininition of USE_WIN32_FILEIO - - * libtiff/*: Added more 'dual-mode' error handling: Done TIFFWarning - calls in core LibTiff. - -2005-12-21 Andrey Kiselev - - * libtiff/{tif_dir.c, tif_dir.h, tif_print.c}: Make RichTIFFIPTC, - Photoshop and ICCProfile tags custom. - -2005-12-21 Joris Van Damme - - * libtiff/*, contrib/*: Added 'dual-mode' error handling, enabling - newer code to get context indicator in error handler and still - remain compatible with older code: Done TIFFError calls everywhere - except in tools - -2005-12-20 Andrey Kiselev - - * tools/tiffcp.c: Added many error reporting messages; fixed integer - overflow as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=789 - -2005-12-16 Frank Warmerdam - - * contrib/addtiffo/*: Major upgrade by Joris to support subsampled - YCbCr images in jpeg compressed TIFF files. - -2005-12-14 Andrey Kiselev - - * tools/tiffcp.c: Return non-zero status when reading fails (again). - -2005-12-13 Andrey Kiselev - - * tools/tiffcp.c: Return non-zero status when reading fails. - -2005-12-12 Andrey Kiselev - - * libtiff/{tif_dir.h, tiff.h}: Added more EXIF tags. - -2005-12-09 Andrey Kiselev - - * libtiff/{tif_dir.c, tif_dir.h, tif_print.c}: Make XMLPacket tag - custom. - - * tools/tiffinfo.c: Print EXIF directory contents if exist. - - * libtiff/tiff.h: Few EXIF tag numbers added. - - * libtiff/{tif_dirinfo.c, tif_dirread.c, tif_dir.h, tif_dir.c, - tiffio.h}: Preliminary support to read custom directories. New - functions: TIFFReadCustomDirectory() and TIFFReadEXIFDirectory(). - -2005-12-07 Andrey Kiselev - - * libtiff/{tif_dirinfo.c, tif_dirread.c, tif_dir.h, tif_dir.c}: - More work to implement custom directory read support. - - * libtiff/{tif_aux.c, tif_dirinfo.c, tif_dirread.c, tif_dir.h, - tif_dir.c, tif_print.c}: Make YCbCrCoefficients and ReferenceBlackWhite - tags custom. - -2005-12-05 Andrey Kiselev - - * libtiff/tif_dirread.c: One more workaround for broken - StripByteCounts tag. Handle the case when StripByteCounts array filled - with completely wrong values. - -2005-11-30 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Release file descriptor in case of failure - in the TIFFOpenW() function as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1003 - - * libtiff/tif_dirinfo.c: Correctly yse bsearch() and lfind() - functions as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1008 - -2005-11-20 Frank Warmerdam - - * tif_open.c, tiff.h, tiffdump.c: Incorporate preliminary support - for MS MDI format. - http://bugzilla.remotesensing.org/show_bug.cgi?id=1002 - - * .cvsignore: many files added, and a few update according - to suggestion of Brad HArds on tiff mailing list. - -2005-11-03 Frank Warmerdam - - * libtiff/libtiff.def, tiffiop.h, tiffio.h: Made TIFFFreeDirectory - public. - -2005-10-31 Andrey Kiselev - - * tools/fax2tiff.c: Properly calculate sizes of temporary arrays - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=943 - - * tools/fax2tiff.c: Added option '-r' to set RowsPerStrip parameter - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=944 - - * tools/tiffdump.c: Fixed typeshift and typemask arrays initialization - problem as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=946 - - * tools/bmp2tiff.c: Fixed possible integer overflow error as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=965 - - * libtiff/tif_dirinfo.c: Make XResolution, YResolution and - ResolutionUnit tags modifiable during write process. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=977 - - * tools/tiffsplit.c: Copy fax related fields over splitted parts - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=983 - -2005-10-21 Frank Warmerdam - - * tif_dirread.c: Don't try and split single strips into "0" strips - in ChopUpSingleUncompressedStrip. This happens in some degenerate - cases (like 1x1 files with stripbytecounts==0 (gtsmall.jp2 embed tiff) - -2005-10-20 Joris Van Damme - - * tif_fax3.c: changed 'at scanline ...' style warning/errors - with incorrect use of tif_row, to 'at line ... of - strip/tile ...' style - -2005-10-15 Frank Warmerdam - - * tif_write.c: fixed setting of planarconfig as per bug report - on the mailing list from Joris. - -2005-10-07 Andrey Kiselev - - * configure.ac, configure, nmake.opt, libtiff/{tif_config.h, - tif_dirread.c}: Make the default strip size configurable via the - --with-default-strip-size and STRIP_SIZE_DEFAULT options. - -2005-09-30 Bob Friesenhahn - - * html/support.html: Fixed link to documentation on Greg Ward's - LogLuv TIFF format. - -2005-09-28 Andrey Kiselev - - * tools/tiffdump.c: Fixed crash when reading malformed tags. - -2005-09-20 Andrey Kiselev - - * tools/tiff2pdf.c: Added missed 'break' statement as per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=932 - -2005-09-12 Andrey Kiselev - - * libtiff 3.7.4 released. - - * {configure, configure.ac, Makefile.am, autogen.sh}: Applied patch - from Patrick Welche (all scripts moved in the 'config' and 'm4' - directories). - -2005-09-12 Frank Warmerdam - - * libtiff/tif_open.c: reintroduce seek to avoid problem on solaris. - -2005-09-05 Frank Warmerdam - - * libtiff/tif_dir.c: When prefreeing tv->value in TIFFSetFieldV - also set it to NULL to avoid double free when re-setting custom - string fields as per: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=922 - -2005-08-12 Frank Warmerdam - - * libtiff/tif_print.c: avoid signed/unsigned warning. - - * libtiff/tif_dirread.c: removed unused variable. - -2005-07-30 Frank Warmerdam - - * libtiff/tif_dir.c: Fixed up support for swapping "double complex" - values (128 bits as 2 64 bits doubles). GDAL gcore tests now - pass on bigendian (macosx) system. - -2005-07-28 Andrey Kiselev - - * libtiff/{tif_aux.c, tif_dirread.c, tif_fax3.c, tiffiop.h}: Rename - CheckMalloc() function to _TIFFCheckMalloc() and make it available - globally as an internal helper routine. - -2005-07-27 Andrey Kiselev - - * libtiff/tif_dir.c: More improvements in the "pass by value" part of - the custom tags handling code. - -2005-07-26 Andrey Kiselev - - * libtiff/{tif_dirread.c, tif_dirinfo.c}: Do not upcast BYTEs to - SHORTs in the TIFFFetchByteArray(). Remove TIFFFetchExtraSamples() - function, use TIFFFetchNormalTag() instead as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=831 - - Remove TIFFFetchExtraSamples() function, use TIFFFetchNormalTag() - instead. - - * libtiff/tiffconf.h.in: One more attempt to fix the AIX bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - -2005-07-25 Andrey Kiselev - - * libtiff/tif_print.c: Fixed printing of the BYTE and SBYTE arrays. - - * tools/tiffdump.c: Added support for TIFF_IFD datatype. - -2005-07-21 Andrey Kiselev - - * libtiff/tif_write.c: Do not check the PlanarConfiguration field in - the TIFFWriteCheck() function in case of single band images (as per - TIFF spec). - -2005-07-12 Andrey Kiselev - - * SConstruct, libtiff/SConstruct: Added the first very preliminary - support for SCons software building tool (http://www.scons.org/). - This is experimental infrastructure and it will exist along with the - autotools mechanics. - -2005-07-07 Andrey Kiselev - - * port/{getopt.c, strcasecmp.c, strtoul.c}: Update modules from - the NetBSD source tree (the old 4-clause BSD license changed to - the new 3-clause one). - - * configure.ac, port/lfind.c, libtiff/tiffiop.h: Added lfind() - replacement module. - - * port/dummy.c: Make the dummy function static. - -2005-07-06 Andrey Kiselev - - * tools/tiffcp.c: Fixed WhitePoint tag copying. - - * libtiff/{tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_print.c}: - Make FieldOfViewCotangent, MatrixWorldToScreen, MatrixWorldToCamera, - ImageFullWidth, ImageFullLength and PrimaryChromaticities tags custom. - -2005-07-04 Andrey Kiselev - - * libtiff 3.7.3 released. - - * configure, configure.ac: Do not use empty -R option when linking - with --enable-rpath. - -2005-07-01 Andrey Kiselev - - * libtiff/{tiffiop.h, tif_open.c}: Added open option 'h' to avoid - reading the first IFD when needed. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=875 - - * libtiff/tif_color.c: Better use of TIFFmin() macro to avoid side - effects. - -2005-06-23 Andrey Kiselev - - * tools/tiff2pdf.c: Print two characters per loop in the - t2p_write_pdf_trailer(). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=594 - - * tools/tiffgt.c: Use MacOS X OpenGL framework when appropriate. As - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=844 - - * acinclude.m4: Updated to latest OpenGL test macros versions. - - * libtiff/tiff.h: Use correct int size on Sparc 64bit/Sun compiler - platform. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=855 - -2005-06-14 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Added support for ClipPath, XClipPathUnits - and YClipPathUnits tags. - -2005-06-07 Andrey Kiselev - - * contrib/addtiffo/tif_ovrcache.c: Properly extract tile/strip size; - use pixel sized shift in contigous case. - -2005-06-06 Andrey Kiselev - - * contrib/addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}: - Make overviews working for contiguos images. - -2005-06-03 Andrey Kiselev - - * libtiff/tif_open.c: Replace runtime endianess check with the compile - time one. - - * libtiff/tif_predict.c: Floating point predictor now works on - big-endian hosts. - -2005-06-01 Andrey Kiselev - - * libtiff/tif_dir.c: Use _TIFFsetString() function when read custom - ASCII values. - - * libtiff/{tif_dirinfo.c, tif_dir.h, tif_dir.c, tif_print.c}: Make - DocumentName, Artist, HostComputer, ImageDescription, Make, Model, - Copyright, DateTime, PageName, TextureFormat, TextureWrapModes and - TargetPrinter tags custom. - - * libtiff/tif_jpeg.c: Cleanup the codec state depending on - TIFF_CODERSETUP flag (to fix memry leaks). - - * libtiff/tif_jpeg.c: Initialize JPEGTables array with zero after - allocating. - -2005-05-26 Andrey Kiselev - - * configure.ac, libtiff/Makefile.am: Added workaround for - OpenBSD/MirOS soname problem as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=838 - - * libtiff/tif_dirwrite.c: Use tdir_count when calling - TIFFCvtNativeToIEEEDouble() in the TIFFWriteDoubleArray() function as - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=845 - -2005-05-25 Andrey Kiselev - - * tools/ppm2tiff.c: Fixed format string when read PPM file header with - the fscanf() function. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=861 - - * libtiff/{tif_dirinfo.c, tif_print.c}: TIFFFetchByteArray() returns - uint16 array when fetching the BYTE and SBYTE filds, so we should - consider result as pointer to uint16 array and not as array of chars. - As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=831 - - * libtiff/tif_dir.c: More efficient custom tags retrieval as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=830 - - * libtiff/tif_win32.c: Use FILE_SHARE_READ | FILE_SHARE_WRITE share - mode in CreateFile() call as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=829 - - * libtiff/Makefile.am: Fixed parallel compilation of the libtiff and - libtiffxx libraries as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=826 - - * contrib/addtiffo/{tif_overview.c, tif_ovrcache.h}: Sinchronized with - GDAL. - -2005-05-23 Frank Warmerdam - - * libtiff/tif_jpeg.c: Substantial fix for addtiffo problems with - JPEG encoded TIFF files. Pre-allocate lots of space for jpegtables - in directory. - -2005-05-22 Frank Warmerdam - - * libtiff/tif_dirread.c: Changed the code that computes - stripbytecount[0] if it appears bogus to ignore if stripoffset[0] is - zero. This is a common case with GDAL indicating a "null" tile/strip. - -2005-05-17 Andrey Kiselev - - * tools/tiffsplit.c: Check for JPEGTables tag presence before copying. - -2005-05-06 Frank Warmerdam - - * libtiff/tif_dirread.c: Applied similar change to - TIFFFetchPerSampleLongs and TIFFFetchPerSampleAnys. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=843 - - * libtiff/tif_jpeg.c: added LIB_JPEG_MK1 support in JPEGDecodeRaw(). - -2005-05-06 Andrey Kiselev - * tools/tiff2pdfr.c, man/tiff2pdf.1: Calculate the tile width properly; - added new option '-b' to use interpolation in output PDF files (Bruno - Ledoux). - -2005-05-05 Frank Warmerdam - - * libtiff/tif_dirread.c: Ensure that broken files with too many - values in PerSampleShorts work ok instead of crashing. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=843 - -2005-04-27 Andrey Kiselev - - * tools/tiffdither.c: Copy the PhotometricInterpretation tag from the - input file. - -2005-04-15 Andrey Kiselev - - * libtiff/tif_predict.c: Added ability to encode floating point - predictor, as per TIFF Technical Note 3. - -2005-04-14 Andrey Kiselev - - * libtiff/{tif_predict.h, tif_predict.c}: Added ability to decode - floating point predictor, as per TIFF Technical Note 3. - -2005-04-13 Andrey Kiselev - - * libtiff/{tiffio.h, tiffiop.h, tif_dir.c, tif_read.c, tif_swab.c}: - Added _TIFFSwab24BitData() and TIFFSwabArrayOfLong() functions used to - swap 24-bit floating point values. - - * libtiff/tiff.h: Added predictor constants. - -2005-04-08 Andrey Kiselev - - * libtiff/{tiffiop.h, tif_dir.c}: Use uint32 type for appropriate - values in _TIFFVSetField() function. Inspired by the bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=816 - - * man/TIFFSetField.3tiff: Fixed definition of the TIFFTAG_INKNAMES tag - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=816 - -2005-03-30 Andrey Kiselev - - * libtiff/tif_open.c: Do not read header in case the output file - should be truncated (Ron). - - * libtiff/{tif_dirinfo.c, tif_config.h.vc}: Use lfind() instead - of bsearch() in _TIFFFindFieldInfoByName() function (Ron). - - * libtiff/{tiff.h, tif_dirinfo.c}: Fixes in EXIF tag ordering (Ron). - -2005-03-22 Andrey Kiselev - - * configure.ac, libtiff/Makefile.am: Use libtool machinery to pass - rpath option. - -2005-03-21 Andrey Kiselev - - * libtiff/{tif_dir.c, tif_print.c}: Handle all data types in custom - tags. - -2005-03-18 Andrey Kiselev - - * libtiff/dirinfo.c: Added DNG tags. - - * libtiff/{tif_dir.c, tif_print.c}: More improvements in custom tag - handling code. - - * libtiff/tiff.h: More comments; added missed DNG tag (LensInfo); - added DNG 1.1.0.0 tags. - - * tools/tif2pdf.c: Fixed problem with alpha channel handling as per - bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=794 - - * man/TIFFGetField.3tiff: Add a note about autoregistered tags. - -2005-03-17 Andrey Kiselev - - * nmake.opt: Build with Win32 CRT library by default. - - * tools/tiff2ps.c: Fixed typo in page size handling code. - - * libtiff/{tif_dir.c, tif_print.c}: Support for custom tags, passed - by value. - - * libtiff/{tiff.h, tif_dirinfo.c, tiffiop.h}: Added EXIF related tags. - -2005-03-15 Andrey Kiselev - - * libtiff 3.7.2 released. - -2005-03-09 Andrey Kiselev - - * tools/tiffcmp.c: Added ability to compare the 32-bit integer and - floating point data; complain on unsupported bit depths. - -2005-03-05 Andrey Kiselev - - * tif_stream.cxx: Use ios namespace instead of ios_base to support - GCC 2.95. - - * libtiff/{tiff.h, tif_fax3.tif, tif_jpeg.c}: Applied correct patch from - Lee Howard for HylaFax DCS tag - (see http://bugzilla.remotesensing.org/show_bug.cgi?id=771) - -2005-03-04 Andrey Kiselev - - * configure, configure.ac: Use -rpath option instead of -R as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=732 - - * libtiff/{tiff.h, tif_fax3.tif, tif_jpeg.c}: Applied patch from Lee - Howard to support a new tag TIFFTAG_FAXDCS (34911) used in HylaFax - software. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=771 - - * nmake.opt, html/build.html: Add more comments, change the config - file organization a bit as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=764 - - * tools/tiffcmp.c: Use properly sized buffer in short arrays comparison - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=785 - -2005-03-03 Andrey Kiselev - - * libtiff/tif_dirread.c: More logic to guess missed strip size as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=705 - - * tools/fax2ps.c: Replace insecure mktemp() function with the - tmpfile() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=786 - -2005-02-04 Andrey Kiselev - - * libtiff/tiff.h: Changed the int8 definition to be always signed char - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=727 - - * libtiff/tiffio.h: Move TIFFOpenW() function into the extern "C"{} - block as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=763 - -2005-02-03 Bob Friesenhahn - - * tools/tiffgt.c: Fix problem on big-endian CPUs so that images - display more correctly. Images display brighter than they should - on a Sun workstation. - -2005-02-03 Andrey Kiselev - - * libtiff/tif_dirread.c: Estimate strip size in case of wrong or - suspicious values in the tags. As per bugs - - http://bugzilla.remotesensing.org/show_bug.cgi?id=705 - - and - - http://bugzilla.remotesensing.org/show_bug.cgi?id=320 - - * tools/tiff2ps.c: Fixed problem with page sizes as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=742 - -2005-01-31 Bob Friesenhahn - - * libtiff/tiff.h (TIFFTAG_TILEWIDTH): Corrected description. - (TIFFTAG_TILELENGTH): Corrected description. - -2005-01-30 Andrey Kiselev - - * configure.ac: Fixes for --with-docdir option as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=759 - - * libtiff/tif_open.c: Remove unnesessary TIFFSeekFile() call as per - bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=756 - - * libtiff/tif_stream.cxx: Fixes for C++ stream interface from - Michael Rinne and Edward Lam. - -2005-01-15 Andrey Kiselev - - * configure.ac: Make the documentation directory location configurable - via the --with-docdir option (as suggested by Jeremy C. Reed). - - * libtiff/tif_color.c: Use double as the second argument of pow() - function in TIFFCIELabToRGBInit(). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=741 - - * libtiff/tif_pixarlog.c: Avoid warnings when converting float to - integer as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=740 - - * libtiff/tif_getimage.c: Always fill the error message buffer in - TIFFRGBAImageBegin() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=739 - -2005-01-12 Andrey Kiselev - - * libtiff/tif_jpeg.c: Added ability to read/write the fax specific - TIFFTAG_FAXRECVPARAMS, TIFFTAG_FAXSUBADDRESS and TIFFTAG_FAXRECVTIME - tags as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=736 - - * libtiff/tif_win32.c: Fixed message formatting in functions - Win32WarningHandler() and Win32ErrorHandler() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=735 - - * tools/tiff2ps.c: Interpret the -w and -h options independently. As - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=689 - -2005-01-11 Andrey Kiselev - - * libtiff/tiffio.h: Move the color conversion routines in the 'extern - "C"' section as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=727 - - * libtiff/tiff.h: Restore back the workaround for AIX Visual Age C - compiler to avoid double definition of BSD types as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - - * libtiff/Makefile.am: Place the C++ stream API in the separate - library called libtiffxx to avoid unneeded dependencies. Probably - there will be more C++ API in the future. As per bugs - - http://bugzilla.remotesensing.org/show_bug.cgi?id=733 - - and - - http://bugzilla.remotesensing.org/show_bug.cgi?id=730 - -2005-01-05 Andrey Kiselev - - * tools/tiffdump.c: Fixed problem when read broken TIFFs with the - wrong tag counts (Dmitry V. Levin, Martin Pitt). - - * configure.ac: Replace --disable-c++ with the --disable-cxx option as - per bug http://bugzilla.remotesensing.org/show_bug.cgi?id=730 - -2004-12-25 Andrey Kiselev - - * libtiff/tif_getimage.c: More fixes for multiple-alpha-channelled - RGB-images as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=713 - - - * tools/tiffset.c: Convert character option to integer value as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=725 - -2004-12-20 Andrey Kiselev - - * libtiff 3.7.1 released. - - * html/tiffset.1.html: Add missed manual page as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=678 - - * libtiff/tiff.h: Revert back libtiff data type definitions as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=687 - -2004-12-19 Andrey Kiselev - - * libtiff/tif_dirread.c: Do not forget about TIFF_VARIABLE2 when - checking for tag count in TIFFReadDirectory() function. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=713 - - * libtiff/{tif_dirread.c, tif_fax3.c}: More argument checking in - CheckMallock() function. - - * libtiff/tif_getimage.c: Support for multiple-alpha-channelled - RGB-images as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=718 - -2004-12-15 Frank Warmerdam - - * libtiff/tif_getimage.c: #define A1 bracketing for clean build on - SunPro compiler. - -2004-12-11 Bob Friesenhahn - - * autogen.sh: aclocal and autoheader should be executed after - libtoolize. Also add '-I .' to aclocal invocation to check - current directory for macros. - -2004-12-10 Andrey Kiselev - - * libtiff/tif_dirwrite.c: Always write TIFFTAG_SUBIFD using LONG type - as per bugs - - http://bugzilla.remotesensing.org/show_bug.cgi?id=703 - - and - - http://bugzilla.remotesensing.org/show_bug.cgi?id=704 - -2004-12-04 Andrey Kiselev - - * nmake.opt: Link with the user32.lib in windowed mode. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=697 - - * libtiff/tif_win32.c: Use char* strings instead of TCHAR in windowed - mode as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=697 - - * libtiff/tif_config.in.vc: Removed unneded definitions for - read/open/close/lseek functions to fix the - - http://bugzilla.remotesensing.org/show_bug.cgi?id=680 - -2004-12-03 Andrey Kiselev - - * libtiff/{tif_dir.c, tif_dirread.c}: Remove TIFFReassignTagToIgnore() - call from the TIFFReadDirectory() function. TIFFReassignTagToIgnore - must be removed in the future, as it was never used properly. As per - bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=692 - -2004-11-30 Bob Friesenhahn - - * libtiff/tif_jpeg.c: Added a work-around in order to allow - compilation with the heavily modified version of libjpeg delivered - with Cygwin. - -2004-11-29 Andrey Kiselev - - * libtiff/tif_dir.c: Properly handle tags, which have the uint32 - counts. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=693 - - * tools/fax2ps.c: Be able to extract the first page (#0). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=690 - -2004-11-28 Andrey Kiselev - - * libtiff/tif_unix.c: Make UNIX module compilable (and usable) - on Windows. - - * nmake.opt: Add missed DLLNAME variable. - -2004-11-26 Frank Warmerdam - - * libtiff/makefile.vc: make it easier to rename the libtiff DLL. - -2004-11-24 Andrey Kiselev - - * man/libtiff.3tiff: Improvements in the "LIST OF ROUTINES" table as - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=545 - - * man/tiffset.1: Added manual page for tiffset tool written by Jay - Berkenbilt. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=678 - -2004-11-23 Frank Warmerdam - - * libtiff/tif_error.c: fixed TIFFerror call to be TIFFError. - -2004-11-21 Frank Warmerdam - - * html/document.html: Updated Adobe web links as per email from Joris. - -2004-11-21 Andrey Kiselev - - * libtiff/{tiffio.hxx, tiffio.h}: C++ stream interface moved to new - file tiffio.hxx. We don't have any C++ in tiffio.h, those who want to - use C++ streams should #include . - -2004-11-13 Andrey Kiselev - - * libtiff/tiff.h: Added Adobe DNG tags. - - * libtiff/tif_win32.c: Typo fixed. - - * libtiff/{tif_stream.cxx, tiffio.h}: C++ stream interface updated to - be compliant with the latest standard. Appropriate additions in - makefiles now completed. - -2004-11-11 Andrey Kiselev - - * tools/tiffset.c, libtiff/tif_dirinfo.c: Properly handle the - different tag types. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=600 - -2004-11-10 Andrey Kiselev - - * libtiff/tif_aux.c: Set the appropriate ReferenceBlackWhite array for - YCbCr image which lacks that tag (noted by Hans Petter Selasky). - -2004-11-09 Andrey Kiselev - - * libtiff/tif_color.c: Division by zero fixed (Hans Petter Selasky). - -2004-11-07 Andrey Kiselev - - * libtiff/{tif_stream.cxx, tiffio.h}: Added C++ stream interface - contributed by Edward Lam (see - http://bugzilla.remotesensing.org/show_bug.cgi?id=654 for details). - Though no changes in any makefiles yet. - -2004-11-05 Frank Warmerdam - - * libtiff/tif_open.c: Removed close() in TIFFClientOpen() if file - is bad. This is the callers responsibility. - http://bugzilla.remotesensing.org/show_bug.cgi?id=651 - -2004-11-05 Andrey Kiselev - - * libtiff/{tiffio.h, tif_win32.c, libtiff.def}: Added TIFFOpenW() - function to work with the double byte strings (used to represent - filenames in some locales). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=625 - - * libtiff/tif_dirread.c: Fixed problem when fetching BitsPerSample and - Compression tags of type LONG from broken TIFFS as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=662 - - * libtiff/tif_dirinfo.c: Fixed definition for TIFFTAG_RICHTIFFIPTC, - the writecount should have uint32 type. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=662 - - * libtiff/tif_write.c: Fixed wrong if() statement in - TIFFAppendToStrip() function as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=660 - -2004-11-04 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Change definition for TIFFTAG_EXTRASAMPLES - field. The caller should supply a count when setting this field. As - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=648 - - * libtiff/{tif_jpeg.c, tif_ojpeg.c}: TIFFTAG_JPEGTABLES should have - uint32 count. Use this type everywhere. - -2004-11-03 Frank Warmerdam - - * libtiff/tif_next.c: avoid use of u_long and u_char types. Bug 653. - -2004-11-02 Frank Warmerdam - - * tools/tiff2rgba.c: removed extra newlines in usage message. - -2004-10-30 Andrey Kiselev - - * libtiff/tif_dirwrite.c: Improvements in tag writing code. - - * tools/tiff2ps.c: Fixed wrong variable data type when read Position - tags (Tristan Hill). - -2004-10-30 Frank Warmerdam - - * libtiff/tiffiop.h: added fallback definition of assert() if we - don't have assert.h. - -2004-10-29 Andrey Kiselev - - * libtiff/tif_fax3.c: Fixed case with the wrong decode routines - choosing when the incorrect Group4Options tag set. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=323 - - * libtiff/tif_dirwrite.c: Fixed problem with passing count variable of - wrong type when writing the TIFF_BYTE/TIFF_SBYTE tags in - TIFFWriteNormalTag(). - -2004-10-28 Andrey Kiselev - - * tools/tiff2ps.c: Fixed wrong variable data type when read Resolution - tags (Peter Fales). - - * tools/{bmp2tiff.c, raw2tiff.c}: Get rid of stream I/O functions. - -2004-10-28 Frank Warmerdam - - * tools/tiff2pdf.c: added casts to avoid warnings. - - * libtiff/libtiff.def: Added several more entry points required - to link fax2tiff.c against the DLL on windows. - -2004-10-27 Andrey Kiselev - - * configure, configure.ac: Added --enable-rpath option to embed linker - paths into library binary. - -2004-10-26 Andrey Kiselev - - * tools/tiffset.c: Check the malloc return value (Dmitry V. Levin). - - * libtiff/{tif_strip.c, tif_tile.c}: Zero division problem fixed - (Vladimir Nadvornik, Dmitry V. Levin). - -2004-10-16 Andrey Kiselev - - * libtiff 3.7.0 released. - -2004-10-15 Bob Friesenhahn - - * libtiff/tif_jpeg.c: There seems to be no need to include stdio.h - in this file so its inclusion is removed. Including stdio.h - sometimes incurs an INT32 typedef conflict between MinGW's - basetsd.h and libjpeg's jmorecfg.h. - -2004-10-15 Andrey Kiselev - - * man/bmp2tiff.1: Added manual page for bmp2tiff utility. - -2004-10-13 Bob Friesenhahn - - * tools/tiffcmp.c (leof): Renamed from 'eof' in order to avoid - conflict noticed under MinGW. - * ltmain.sh: Fix for MinGW compilation. - -2004-10-13 Frank Warmerdam - - * man/tiffsplit.1: Fixed to indicate using aaa-zzz, not aa-zz. - http://bugzilla.remotesensing.org/show_bug.cgi?id=635 - -2004-10-12 Andrey Kiselev - - * libtiff/{tif_dirread.c, tif_jpeg.c, tif_luv.c, tif_ojpeg.c, - tif_pixarlog.c, tif_write.c}: Handle the zero strip/tile sizes - properly (Dmitry V. Levin, Marcus Meissner). - -2004-10-11 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Type of the TIFFTAG_SUBIFD field changed - to TIFF_IFD. - -2004-10-10 Andrey Kiselev - - * tools/bmp2tif.c: Check the space allocation results. - -2004-10-09 Andrey Kiselev - - * libtiff/tif_dir.c: Initialize td_tilewidth and td_tilelength fields - of the TIFFDirectory structure with the 0 instead of -1 to avoid - confusing integer overflows in TIFFTileRowSize() for striped images. - - * tools/tiff2pdf.c: Fixed TransferFunction tag handling reported - by Ross A. Finlayson. - - * libtiff/tif_dir.c: Fixed custom tags handling as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=629 - -2004-10-08 Frank Warmerdam - - * libtiff/tif_dirinfo.c: Fix bug with tif_foundfield and reallocation - of tif_fieldinfo. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=630 - -2004-10-04 Bob Friesenhahn - - * contrib/iptcutil/README: Added the missing README which goes - along with iptcutil. - -2004-10-03 Andrey Kiselev - - * libtiff/tif_compress.c: Improved error reporting in - TIFFGetConfiguredCODECs() (Dmitry V. Levin). - -2004-10-02 Andrey Kiselev - - * libtiff 3.7.0beta2 released. - - * libtiff/{tif_aux.c, tif_compress.c, tif_dirinfo.c, tif_dirwrite.c, - tif_extension.c, tif_fax3.c, tif_luv.c, tif_packbits.c, - tif_pixarlog.c, tif_write.c}: Added checks for failed memory - allocations and integer overflows (Dmitry V. Levin). - - * libtiff/tiff.h: Missed TIFF_BIGTIFF_VERSION constant added. - -2004-10-01 Frank Warmerdam - - * libtiff/tif_open.c: added a more informative message if a BigTIFF - file is opened. - -2004-09-30 Frank Warmerdam - - * libtiff/tif_dirinfo.c: changed type of XMLPacket (tag 700) to - TIFFTAG_BYTE instead of TIFFTAG_UNDEFINED to comply with the info - in the Adobe XMP Specification. - -2004-09-29 Andrey Kiselev - - * libtiff/{tif_jpeg.c, tif_pixarlog.c}: Use _TIFFmemset() instead of - memset(). - - * libtiff/{tif_dirread.c, tif_strip.c, tif_tile.c}: Applied patches - from Dmitry V. Levin to fix possible integer overflow problems. - -2004-09-28 Andrey Kiselev - - * libtiff/tif_getimage.c: Check for allocated buffers before clearing - (Dmitry V. Levin). - -2004-09-26 Andrey Kiselev - - * libtiff/{tif_dir.h, tif_dir.c, tif_dirread.c, tif_write.c}: - Optimize checking for the strip bounds. - - * libtiff/{tif_dirread.c, tif_strip.c}: TIFFScanlineSize() and - TIFFRasterScanlineSize() functions report zero in the case of integer - overflow now. Properly handle this case in TIFFReadDirectory() - (patches from Dmitry V. Levin). - -2004-09-25 Andrey Kiselev - - * libtiff/{tif_dirinfo.c, tif_strip.c, tif_tile.c}: Use TIFFhowmany8() - macro where appropriate. - - * tools/tiff2bw.c: Write ImageWidth/Height tags to output file, as - noted by Gennady Khokhorin. - - * libtiff/tif_dirread.c: Always check the return values, returned - by the _TIFFmalloc() (Dmitry V. Levin). - - * libtiff/tif_dir.c: Fixed possible integer overflow _TIFFset*Array() - functions (Dmitry V. Levin). - - * libtiff/{tif_dirread.c, tif_dir.c, tif_write.c}: - Potential memory leak fixed in TIFFReadDirectory(), _TIFFVSetField(), - TIFFGrowStrips() (found by Dmitry V. Levin). - -2004-09-24 Andrey Kiselev - - * libtiff/{tiffio.h, tif_compress.c}: Added TIFFGetConfiguredCODECs() - to get the list of configured codecs. - - * libtiff/{tiffiop.h, tif_dirread.c}: More overflow fixes from - Dmitry V. Levin. - -2004-09-23 Andrey Kiselev - - * libtiff/tif_dirread.c: Applied patch from Dmitry V. Levin to fix - possible integer overflow in CheckMalloc() function. - -2004-09-22 Andrey Kiselev - - * libtiff/{tiffiop.h, tif_strip.c}: Use TIFFhowmany8() macro instead - of plain TIFFhowmany() where appropriate. - -2004-09-21 Andrey Kiselev - - * libtiff/tif_getimage.c: Initialize arrays after space allocation. - -2004-09-19 Andrey Kiselev - - * libtiff 3.7.0beta released. - - * libtiff/{tif_luv.c, tif_next.c, tif_thunder.c}: Several buffer - overruns fixed, as noted by Chris Evans. - -2004-09-14 Bob Friesenhahn - - * commit: Added a script to make it more convenient to commit - updates. The CVS commit message is extracted from this ChangeLog - file. - -2004-09-14 Andrey Kiselev - - * configure.ac, configure, aclocal.m4, libtiff/{mkspans.c, tif_fax3.c, - tif_getimage.c, tif_luv.c, tif_lzw.c, tif_ojpeg.c, tif_packbits.c, - tif_predict.c, tif_read.c, tif_swab.c, tif_thunder.c, tif_write.c, - tif_dir.c, tif_dirread.c, tif_dirwrite.c, tif_jpeg.c, tif_dirinfo.c, - tif_vms.c, tif_print.c, tif_strip.c, tif_tile.c, tif_dir.h, - tif_config.h.in, tiffiop.h}: - Get rid of BSD data types (u_char, u_short, u_int, u_long). - -2004-09-13 Bob Friesenhahn - - * libtiff/tiff.h: Fix column tagging. Reference current Adobe XMP - specification. Reference libtiff bug tracking system to submit - private tag additions. - -2004-09-12 Bob Friesenhahn - - * tools/tiffgt.c: Include "tif_config.h". - - * configure.ac: Use AM_PROG_CC_C_O since it is now needed to build - tiffgt. This results in the 'compile' script being added to the - project. - - * tools/Makefile.am (tiffgt_CFLAGS): Add extra build options - required to find OpenGL headers necessary to build tiffgt. Also - ensure that the libtiff that we built is used rather than some other - libtiff installed on the system. - -2004-09-12 Andrey Kiselev - - * configure.ac, acinclude.m4, aclocal.m4: New macros to detect GLUT - libraries. - -2004-09-11 Bob Friesenhahn - - * configure.ac: Pass library configuration defines via - tif_config.h rather than extending CPPFLAGS. Configure a - libtiff/tiffconf.h in order to satisfy application requirements - (not used by library build). Do not define _POSIX_C_SOURCE=2 since - this causes failure to build on systems which properly respect - this request. - - * libtiff/tiffconf.h.in: New file to act as the template for the - configured tiffconf.h - - * libtiff/files.lst (HDRS): Install the configured tiffconf.h. - -2004-09-10 Frank Warmerdam - - * html/internals.html: Split off a discussion of adding new tags - into addingtags.html. - -2004-09-10 Andrey Kiselev - - * test/{ascii_tag.c, long_tag.c}: Preliminary test suite added. - - * tools/tiff2pdf.c: Fixed reading TransferFunction tag as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=590 - - * libtiff/tif_print.c: Fixes in InkNames and NumberOfInks reporting. - - * libtiff/tif_dirread.c: Don't reject to read tags of the - SamplesPerPixel size when the tag count is greater than number of - samples as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=576 - - * libtiff/tiff.h: Use _TIFF_DATA_TYPEDEFS_ guardian to switch off - defining int8/uint8/... etc. types. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=607 - -2004-09-09 Frank Warmerdam - - * tools/tiff2ps.c, tools/tiffmedian.c: fiddle with include files - to avoid compile warnings about getopt() and a few other things. - -2004-09-02 Andrey Kiselev - - * libtiff/tif_dirread.c: Use memcpy() function instead of pointer - assigning magic in TIFFFetchFloat(). - -2004-09-01 Andrey Kiselev - - * libtiff/{tiffio.h, tif_open.c}: Applied patches from Joris Van Damme - to avoid requirement for tiffiop.h inclusion in some applications. See - here - - http://www.asmail.be/msg0054799560.html - - for details. - - * tools/fax2tiff.c: Use the new functions in the code. - -2004-08-25 Andrey Kiselev - - * tools/tiff2pdf.c: Initialize arrays properly. - - * tools/tiff2ps.c: Avoid zero division in setupPageState() function; - properly initialize array in PSDataBW(). - -2004-08-24 Andrey Kiselev - - * tools/tiff2pdf.c: More fixes for bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=590 - - from Ross Finlayson. - -2004-08-23 Andrey Kiselev - - * tools/tiff2ps.c: Fixed problem with uninitialized values. - - * libtiff/tif_dir.c: Initialize tif_foundfield data member in the - TIFFDefaultDirectory() (in addition to 2004-08-19 fix). - - * tools/tiff2pdf.c: Fixed a bunch of problems as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=590 - -2004-08-20 Andrey Kiselev - - * tools/tiff2pdf.c: Applied patch from Ross Finlayson that checks - that the input file has compression, photometric interpretation, - etcetra, tags or if not than a more descriptive error is returned. - - * libtiff/tif_dirread.c: Fixed problem in TIFFReadDirectory() in the - code, responsible for tag data type checking. - -2004-08-19 Andrey Kiselev - - * libtiff/{tiffiop.h, tif_dirinfo.c}: Fixed problem with the static - variable as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=593 - -2004-08-16 Andrey Kiselev - - * tools/ras2tiff.c: Fixed issue with missed big-endian checks as per - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=586 - -2004-08-01 Andrey Kiselev - - * libtiff/{tif_config.h.in, tif_config.h.vc}: config.h.in and - config.h.vc files renamed in the tif_config.h.in and tif_config.h.vc. - -2004-07-24 Andrey Kiselev - - * libtiff/tif_lzw.c: LZW compression code is merged back from the - separate package. All libtiff tools are updated to not advertise an - abcence of LZW support. - -2004-07-12 Andrey Kiselev - - * libtiff/tiffio.h: Revert thandle_t back to void* type. - -2004-07-11 Andrey Kiselev - - * libtiff/{tif_read.c, tif_tile.c, tif_strip.c}: Fixes in error - messages, as suggested by Bernd Herd. - -2004-07-03 Andrey Kiselev - - * libtiff/tif_dir.c: Call TIFFError() instead of producing warnings - when setting custom tags by value. Reported by Eric Fieleke. - -2004-06-14 Andrey Kiselev - - * tools/bmp2tiff.c: Add missed RawsPerStrip setting. - -2004-06-08 Andrey Kiselev - - * tools/bmp2tiff.c: Added new utility to convert Windows BMP files - into TIFFs. - -2004-06-07 Andrey Kiselev - - * libtiff 3.7.0alpha released. - -2004-06-06 Andrey Kiselev - - * libtiff/{tiff.h, tif_dirwrite.c, tif_fax3.c, tif_packbits.c,}: Get rid - of ugly 64-bit hacks, replace them with the clever (autoconf based ) - ones :-). - - * libtiff/tiffio.h: Define thandle_t as int, not void* (may cause - problems in 64-bit environment). - -2004-06-05 Andrey Kiselev - - * tools/tiffset.c: tiffset now can set any libtiff supported tags. - Tags can be supplied by the mnemonic name or number. - - * libtiff/{tiffio.h, tif_dir.h, tif_dirinfo.c,}: Added two new - functions TIFFFindFieldInfoByName() and TIFFFieldWithName(). - -2004-05-27 Andrey Kiselev - - * libtiff/tif_ojpeg.c: Fixed problem with duplicated SOI and SOF - markers as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=581 - -2004-05-24 Andrey Kiselev - - * tools/tiffsplit.c: Don't forget to copy Photometric - Interpretation tag. - -2004-05-20 Andrey Kiselev - - * libtiff/{tif_open.c, tiffio.h}: New function added: - TIFFIsBigEndian(). Function returns nonzero if given was file written - in big-endian order. - - * tools/tiffsplit.c: Fixed problem with unproperly written multibyte - files. Now output files will be written using the same byte order - flag as in the input image. See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=574 - - for details. - -2004-05-19 Frank Warmerdam - - * libtiff/tif_print.c: added (untested) support for printing - SSHORT, SLONG and SRATIONAL fields. - - * tools/tiffcp.c: close output file on normal exit. - -2004-05-17 Andrey Kiselev - - * libtiff/tif_fax3.c: Avoid reading CCITT compression options - if compression type mismatches. See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=565 - -2004-04-30 Andrey Kiselev - - * libtiff/tif_strip.c: Never return 0 from the - TIFFNumberOfStrips(). - -2004-04-29 Andrey Kiselev - - * libtiff/tif_dirread.c: Workaround for broken TIFF writers which - store single SampleFormat value for multisampled images. See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=562 - -2004-04-25 Andrey Kiselev - - * configure.ac, libtiff/{tiff.h, config.h.in}: Added tests for int8, - int16 and int32 types to avoid complains on some compilers. Details at - - http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - -2004-04-20 Andrey Kiselev - - * tools/tiff2pdf.c: Fixed problem with unaligned access as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=555 - -2004-04-14 Andrey Kiselev - - * libtiff/tif_write.c: Allow in-place updating of the compressed - images (don't work properly with all codecs). For details see GDAL bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=534 - -2004-04-06 Andrey Kiselev - - * libtiff/tif_jpeg.c: Workaround for wrong sampling factors used - in the Intergarph JPEG compressed TIFF images as per bug: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=532 - -2004-04-04 Frank Warmerdam - - * libtiff/tif_open.c: close clientdata if TIFFClientOpen() fails - via bad2. - -2004-03-26 Andrey Kiselev - - * tools/tiffcp.c: Properly set Photometric Interpretation in case of - JPEG compression of grayscale images. - - * tools/tiffcp.c: Don't emit warnings when Orientation tag does not - present in the input image. - -2004-03-19 Andrey Kiselev - - * {many}: The first attempt to switch to autotools. - -2004-03-03 Andrey Kiselev - - * libtiff/tif_open.c: Use dummy mmap/munmap functions in - TIFFClientOpen() when the appropriate client functions was not - supplied by user. - -2004-03-02 Frank Warmerdam - - * tools/ycbcr.c: fixed main() declaration as per: - http://bugzilla.remotesensing.org/show_bug.cgi?id=513 - -2004-02-26 Andrey Kiselev - - * tools/tiffsplit.c: Copy JPEGTables tag contents for JPEG compressed - images. Reported by Artem Mirolubov. - - * libtiff/tif_dirread.c: Fixed problem with handling TIFF_UNDEFINED - tag type in TIFFFetchNormalTag() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=508 - -2004-02-17 Frank Warmerdam - - * libtiff/tif_codec.c: Fixed typo in TIFFInitPackBits name as per: - http://bugzilla.remotesensing.org/show_bug.cgi?id=494 - -2004-02-05 Andrey Kiselev - - * libtiff/tif_fax3.c: Fixed problem with CCITT encoding modes as per - bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=483 - - But we need more work on fax codec to support update mode. - -2004-01-30 Frank Warmerdam - - * libtiff/libtiff.def: Added TIFFCurrentDirOffset, TIFFWriteCheck, - TIFFRGBAImageOK, and TIFFNumberOfDirectories as suggested by - Scott Reynolds. - -2004-01-29 Andrey Kiselev - - * libtiff/tiff.h: Fixed tag definitions for TIFFTAG_YCLIPPATHUNITS - and TIFFTAG_INDEXED as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=475 - - * libtiff/{tif_win32.c, tif_unix.c}: Check whether the pointer is - NULL before proceeding further as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=474 - - Check results, returned by the TIFFFdOpen() before returning and close - file if TIFFFdOpen() failed as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=468 - - * libtiff/tif_open.c: More fixes for - - http://bugzilla.remotesensing.org/show_bug.cgi?id=468 - -2004-01-28 Andrey Kiselev - - * libtiff/{libtiff.def, tif_close.c, tiffio.h, tif_open.c}: Separate - TIFFCleanup() from the TIFFClose() in order to fix the bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=468 - - * tools/tiffcp.c: Fixed problem with wrong interpretation of the - InkNames tag as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=466 - - Memory leak fixed. - -2004-01-21 Frank Warmerdam - - * libtiff/tif_dirwrite.c: Fixed handling of writable ASCII tags that - are field_passcount=TRUE properly. Arguably anonymous custom tags - should be declared as passcount=FALSE, but I don't want to change - that without a careful review. - -2004-01-20 Andrey Kiselev - - * libtiff/tif_write.c: Fixed reporting size of the buffer in case of - stripped image in TIFFWriteBufferSetup(). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=460 - -2004-01-11 Andrey Kiselev - - * libtiff/tif_dir.c: Incomplete cleanup in TIFFFreeDirectory(), - patch from Gerben Koopmans. - - * libtiff/tif_dirread.c: Check field_passcount value before setting - the value of undefined type, patch from Gerben Koopmans. - -2004-01-02 Andrey Kiselev - - * tools/tiffcp.c: Fixed problem with wrong Photometric setting for - non-RGB images. - -2003-12-31 Andrey Kiselev - - * libtiff/tif_win32.c: Fixed problem with _TIFFrealloc() when the NULL - pointer passed. Patch supplied by Larry Grill. - - * libtiff/{tiff.h, tif_fax3.c}:Fixes for AMD 64 platform as - suggested by Jeremy C. Reed. - -2003-12-26 Andrey Kiselev - - * libtiff 3.6.1 released. - -2003-12-24 Andrey Kiselev - - * config.guess, config.sub: Updated from the recent upstream. - -2003-12-22 Andrey Kiselev - - * libtiff/{tif_color, tif_getimage.c, tiffio.h}, man/TIFFcolor.3t: - More cleanups in color conversion interface, added appropriate manual - page. - -2003-12-19 Andrey Kiselev - - * libtiff/{tif_extension.c, tif_dirinfo.c, tiff.h}: Warnings fixed as - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=357 - - * tools/tiff2ps.c: Added support for alpha channel. Fixes - - http://bugzilla.remotesensing.org/show_bug.cgi?id=428 - - * libtiff/{libtiff.def, tif_color.c, tif_getimage.c, tiffio.h}: - Interface for Lab->RGB color conversion is finally cleaned up. - Added support for ReferenceBlackWhite tag handling when converted from - YCbCr color space. The latter closes - - http://bugzilla.remotesensing.org/show_bug.cgi?id=120 - -2003-12-07 Andrey Kiselev - - * libtiff/{tif_getimage.c, tiffio.h}: Avoid warnings. - - * libtiff/makefile.vc, tools/makefile.vc: Support for IJG JPEG - library. - -2003-12-06 Andrey Kiselev - - * libtiff/{tif_getimage.c, tif_aux.c}: Read WhitePoint tag from the - file and properly use it for CIE Lab->RGB transform. - -2003-12-04 Andrey Kiselev - - * libtiff/{tif_getimage.c, tif_color.c, tiffio.h}: YCbCr->RGB - conversion routines now in the tif_color.c module. New function - TIFFYCbCrtoRGB() available in TIFF API. - - * libtiff/tif_dirwrite.c: Handle TIFF_IFD tag type correctly. - -2003-12-03 Andrey Kiselev - - * libtiff/{tif_getimage.c, tif_color.c, tiffio.h}: Improvements in - CIE Lab conversion code. Start moving YCbCr stuff to the tif_color.c - module. - - * libtiff/{tif_getimage.c, tiffio.h}, man{TIFFReadRGBAImage.3t, - TIFFReadRGBAStrip.3t, TIFFReadRGBATile.3t, TIFFRGBAImage.3t}: - Finally resolved problems with orientation handling. TIFFRGBAImage - interface now properly supports all possible orientations, i.e. images - will be flipped both in horizontal and vertical directions if - required. 'Known bugs' section now removed from the appropriate manual - pages. Closed bug entry: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=322 - -2003-12-02 Andrey Kiselev - - * libtiff/tif_dir.c: Fixed order of the parameters in TIFFError() - function calls as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=440 - -2003-11-28 Ross Finlayson - - * tools/tiff2pdf.c: Some bugs fixed. - -2003-11-27 Andrey Kiselev - - * libtiff/tif_luv.c: Fixed bug in 48-bit to 24-bit conversion routine, - reported by Antonio Scuri. - - * man/tiff2pdf.1: Few improvements in page layout. - - * Makefile.in, /man/Makefile.in, /html/man/tiff2pdf.1.html: - Added support fpr tiff2pdf manual page. - -2003-11-26 Ross Finlayson - - * /man/tiff2pdf.1: File added to repository. - -2003-11-26 Andrey Kiselev - - * Makefile.in, /tools/{Makefile.in, makefile.vc}: - Added support fpr tiff2pdf utility. - -2003-11-25 Ross Finlayson - - * /tools/tiff2pdf.c: File added to repository. - -2003-11-22 Andrey Kiselev - - * /tools/raw2tiff.c: sqrtf() replaced with sqrt(). - -2003-11-21 Andrey Kiselev - - * /tools/raw2tiff.c: #include removed. - - * tools/{Makefile.in, tiffgt.c}: Unmaintained and platform dependent - sgigt utility removed and replaced with the completely rewritten - portable tiffgt tool (depend on OpenGL and GLUT). Initial revision, - there is a lot of things to improve. - - * libtiff/tif_ojpeg.c: TIFFVGetField() function now can properly - extract the fields from the OJPEG files. Patch supplied by Ross - Finlayson. - - * libtiff/{tiffio.h, tif_codec.c}, man/{libtiff.3t, TIFFcodec.3t}: - Added new function TIFFIsCODECConfigured(), suggested by Ross - Finlayson. - -2003-11-18 Andrey Kiselev - - * libtiff/tif_dirinfo.c: Implemented binary search in - _TIFFMergeFieldInfo(). Patch supplied by Ross Finlayson. - - * libtiff/tif_dir.h: _TIFFFindOrRegisterdInfo declaration replaced - with _TIFFFindOrRegisterFieldInfo as reported by Ross Finlayson. - -2003-11-17 Frank Warmerdam - - * tif_dirread.c: do not mark all anonymously defined tags to be - IGNOREd. - -2003-11-17 Andrey Kiselev - - * contrib/pds/{tif_pdsdirread.c, tif_pdsdirwrite.c}: Use - TIFFDataWidth() function insted of tiffDataWidth array. - -2003-11-16 Andrey Kiselev - - * libtiff/{tiff.h, tif_dirinfo.c}: Added support for IFD (13) - datatype, intruduced in "Adobe PageMaker TIFF Tech. Notes". - -2003-11-15 Frank Warmerdam - - * Makefile.in: fixed missing backslash for tif_color.c in list. - -2003-11-13 Andrey Kiselev - - * libtiff/{tif_color.c, tif_getimage.c, tiffio.h, Makefile.in}: - New color space conversion code: CIE L*a*b* 1976 images now supported - by the TIFFRGBAImage interface. All introduced routines go to new - module tif_color.c. Eventually all color conversion functions should - be moved there. - -2003-11-12 Andrey Kiselev - - * tools/{ras2tiff.c, rasterfile.h}: Properly determine SUN Rasterfiles - with the reverse byte order (it is reported by the magic header - field). Problem reported by Andreas Wiesmann. - - * tools/raw2tiff.c, man/raw2tiff.1: Few improvements in correlation - calculation function. Guessing mechanics now documented in manual page. - -2003-11-11 Andrey Kiselev - - * tools/raw2tiff.c: Implemented image size guessing using - correlation coefficient calculation between two neighbour lines. - -2003-11-09 Frank Warmerdam - - * libtiff/tif_tile.c: remove spurious use of "s" (sample) in the - planarconfig_contig case in TIFFComputeTile(). - - http://bugzilla.remotesensing.org/show_bug.cgi?id=387 - -2003-11-09 Andrey Kiselev - - * libtiff/tiffiop.h: New macros: TIFFmax, TIFFmin and TIFFrint. - -2003-11-07 Andrey Kiselev - - * libtiff/{tiffio.h, tif_strip.c}, man/{TIFFstrip.3t, libtiff.3t}: - Added TIFFRawStripSize() function as suggested by Chris Hanson. - -2003-11-03 Andrey Kiselev - - * libtiff/{tif_lzw.c, tif_fax3.c}: Proper support for update mode as - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=424 - -2003-10-29 Andrey Kiselev - - * libtiff/libtiff.def: Added TIFFReadRGBAImageOriented. - - * html/build.html: Added note about GNU make requirement. - -2003-10-25 Andrey Kiselev - - * Makefile.in: Fixes in using MAKEFLAGS as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=418 - - * port/install.sh.in: Option -p added to the mkdir command to create - all directory tree structure before installing. - -2003-10-18 Andrey Kiselev - - * /tools/tiff2ps.c: #include replaced with the - #include . - -2003-10-16 Andrey Kiselev - - * Makefile.in: Add an absolute path to the test_pics.sh call. - -2003-10-12 Andrey Kiselev - - * libtiff/tiffcomp.h: #define _BSDTYPES_DEFINED when defining BSD - typedefs. - -2003-10-09 Andrey Kiselev - - * configure, libtiff/{Makefile.in, mkversion.c}: - Relative buildings fixed. - - * tools/Makefile.in: Added "-I../libtiff" to the tiffset building - rule. - -2003-10-07 Andrey Kiselev - - * Makefile.in: Added missed v3.6.0.html. - - * libtiff/tiffio.h: Typo fixed: ORIENTATION_BOTTOMLEFT replaced with - ORIENTATION_BOTLEFT. - -2003-10-04 Andrey Kiselev - - * 3.6.0 final release. - -2003-10-03 Andrey Kiselev - - * libtiff/{tif_getimage.c, tiffio.h}, man/TIFFReadRGBAImage.3t: New - function TIFFReadRGBAImageOriented() implemented to retrieve raster - array with user-specified origin position as suggested by Jason Frank. - See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=322 - - for details. - - * tools/tiff2rgba.c: Switched to use TIFFReadRGBAImageOriented() - instead of TIFFReadRGBAImage(). - - * tools/tiff2ps.c: Fixed possible endless loop as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=404 - -2003-09-30 Andrey Kiselev - - * libtiff/tif_dirread.c: Check field counter against number of fields - in order to fix - - http://bugzilla.remotesensing.org/show_bug.cgi?id=366 - - * libtiff/tif_fax3.c: Fix wrong line numbering as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=342 - -2003-09-25 Andrey Kiselev - - * libtiff/{tiffiop.h, tif_dirread.c, tif_dir.c, tif_open.c, - tif_close.c}: Store a list of opened IFD to prevent looping as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=383 - -2003-09-23 Andrey Kiselev - - * libtiff/tif_dirread.c: More fixes for EstimateStripByteCounts(). See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=358 - -2003-08-21 Andrey Kiselev - - * tools/tiffmedian.c: int declaration replaced with the uint32 to - support large images as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=382 - -2003-08-12 Andrey Kiselev - - * libtiff/Makefile.in: Fixed problem with building in different - directory. - - * tools/tiff2ps.c: Added missing #include . - - * libtiff/tif_dirwrite.c: More fixes for custom tags code - from Ashley Dreier. - -2003-08-07 Andrey Kiselev - - * tools/tiff2ps.c: Added page size setting when creating PS Level 2. - Patch submitted by Balatoni Denes (with corrections from Tom - Kacvinsky). - - * tools/tiff2ps.c: Fixed PS comment emitted when FlateDecode is - being used. Reported by Tom Kacvinsky. - - * libtiff/tif_dirwrite.c: Fixed problem with custom tags writing, - reported by Ashley Dreier. - - * libtiff/tif_print.c: Fixed problem with float tags reading, support - for printing RATIONAL and BYTE tags added. - -2003-08-05 Andrey Kiselev - - * libtiff/tif_lzw.c: Move LZW codec state block allocation back to - TIFFInitLZW(), because its initialization in LZWSetupDecode() cause - problems with predictor initialization. Remove O_RDONLY check during - state block allocation to be able open LZW compressed files in update - mode. - - Problem exist for libtiff version of the tif_lzw.c module. One from - lzw-compression-kit hasn't such troubles. - -2003-08-04 Frank Warmerdam - - * libtiff/tif_write.c: modified tif_write.c so that the various - encoded write functions use tif_postdecode() to apply byte order - swapping (swab) to the application passed data buffer if the same - would be done when reading. This allows us to write pixel data with - more than 8 bits per sample to existing files of a non-native byte - order. One side effect of this change is the applications buffer - itself is altered in this case by the act of writing. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=171 - -2003-07-25 Frank Warmerdam - - * libtiff/tif_open.c: avoid signed/unsigned casting warning - initializing typemask as per patch from J.A. Strother. - - * tools/tiffcp.c: fixed signed/unsigned casting warning. - - * libtiff/tif_print.c: dos2unix conversion. - - * tools/tiffsplit.c: increased the maximum number of pages that - can be split. Patch provided by Andrew J. Montalenti. - -2003-07-11 Andrey Kiselev - - * tools/raw2tiff.c: Added option `-p' to explicitly select color - space of input image data. Closes - - http://bugzilla.remotesensing.org/show_bug.cgi?id=364 - -2003-07-08 Frank Warmerdam - - * tif_aux.c, tif_codec.c, tif_dir.c, tif_dirread.c, tif_extension.c, - tif_fax3.c, tif_getimage.c, tif_luv.c, tif_lzw.c, tif_next.c, - tif_packbits.c, tif_predict.c, tif_print.c, tif_swab.c, tif_thunder.c: - avoid casting warning at /W4. - -2003-07-03 Andrey Kiselev - - * tools/thumbnail.c: Memory leak fixed as reported by Robert S. Kissel. - -2003-06-30 Andrey Kiselev - - * libtiff/tif_pixarlog.c: Unused variables removed. - - * libtiff/{tif_dirread.c, tif_dir.c}: Fixed problem with - EstimateStripByteCounts() as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=358 - - * libtiff/{tif_dirwrite.c, tif_packbits.c}: Fixed compilation on - 64-bit architectures as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=357 - - * libtiff/tif_dirinfo.c: TIFFDataWidth() returns 0 in case of - unknown data type. - -2003-06-19 Frank Warmerdam - - * libtiff/tif_print.c: fixed some serious bugs when printing - custom tags ... almost certain to crash. - - * libtiff/tif_dirread.c: Don't ignore custom fields that are - autodefined. Not sure how this got to be like this. - -2003-06-18 Andrey Kiselev - - * 3.6.0 Beta2 released. - - * tools/tiffcmp.c, man/tiffcmp.1: Fixed problem with unused data - comparing as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=349 - - `-z' option now can be used to set the number of reported different - bytes. - -2003-06-09 Andrey Kiselev - - * tools/tiffcp.c, man/tiffcp.1: Added possibility to specify value -1 - to -r option to get the entire image as one strip. See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=343 - - for details. - -2003-06-04 Andrey Kiselev - - * tools/tiffcp.c: Set the correct RowsPerStrip and PageNumber - values as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=343 - -2003-05-27 Frank Warmerdam - - * libtiff/tif_jpeg.c: modified segment_height calculation to always - be a full height tile for tiled images. Also changed error to just - be a warning. - -2003-05-25 Andrey Kiselev - - * tools/fax2tiff.c: Page numbering fixed, as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=341 - -2003-05-20 Andrey Kiselev - - * contrib/ojpeg/{Makefile.in, jdhuff.h, jinclude.h, ojpeg.c, README}, - configure, Makefile.in: Switched back to the old behaviour. Likely - better solution should be found for OJPEG support. - -2003-05-11 Andrey Kiselev - - * libtiff/mkversion.c: Fixed problem with wrong string size when - reading RELEASE-DATE file. - -2003-05-07 Andrey Kiselev - - * tools/tiff2ps.c: Fixed bug in Ascii85EncodeBlock() function: array - index was out of range. - -2003-05-06 Andrey Kiselev - - * contrib/ojpeg/{Makefile.in, jdhuff.h, jinclude.h, ojpeg.c, README}, - configure, Makefile.in: Improved libtiff compilation with OJPEG - support. Now no need for patching IJG JPEG library, hack requred by - libtiff will be compiled and used in-place. Implemented with - suggestion and help from Bill Allombert, Debian's libjpeg maintainer. - - * libtiff/tif_aux.c: Properly handle TIFFTAG_PREDICTOR in - TIFFVGetFieldDefaulted() function. - -2003-05-05 Andrey Kiselev - - * tools/ppm2tiff.c: PPM header parser improved: now able to skip - comments. - - * tools/tiffdither.c: Fixed problem with bit fill order tag setting: - was not copied from source image. - - * libtiff/getimage.c: Workaround for some images without correct - info about alpha channel as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=331 - -2003-04-29 Andrey Kiselev - - * tools/tiff2ps.c, man/tiff2ps.1: Add ability to generate PS Level 3. - It basically allows one to use the /flateDecode filter for ZIP - compressed TIFF images. Patch supplied by Tom Kacvinsky. Fixes - - http://bugzilla.remotesensing.org/show_bug.cgi?id=328 - - * tools/tiff2ps.c: Force deadzone printing when EPS output specified - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=325 - -2003-04-17 Andrey Kiselev - - * libtiff/tif_dirread.c: Removed additional check for StripByteCounts - due to problems with multidirectory images. Quality of error messages - improved. - -2003-04-16 Andrey Kiselev - - * tools/tiffcp.c: Fixed problem with colorspace conversion for JPEG - encoded images. See bug entries - - http://bugzilla.remotesensing.org/show_bug.cgi?id=275 - - and - - http://bugzilla.remotesensing.org/show_bug.cgi?id=23 - - * libtiff/tif_dirread.c: Additional check for StripByteCounts - correctness. Fixes - - http://bugzilla.remotesensing.org/show_bug.cgi?id=320 - -2003-03-12 Andrey Kiselev - - * tools/{fax2ps.c, fax2tiff.c, gif2tiff.c, pal2rgb.c, ppm2tiff.c, - ras2tiff.c, raw2tiff.c, rgb2ycbcr.c, thumbnail.c, tiff2bw.c, - tiff2ps.c, tiff2rgba.c, tiffcp.c, tiffdither.c, tiffinfo.c, - tiffmedian.c}: Added library version reporting facility to all tools. - -2003-03-06 Frank Warmerdam - - * port/install.sh.in: Fixed problems with install producing paths - like ///usr/local/lib on cygwin. - -2003-02-27 Andrey Kiselev - - * tools/fax2tiff.c, man/fax2tiff.1: New switch (-X) to set width of - raw input page. Patch supplied by Julien Gaulmin. See - - http://bugzilla.remotesensing.org/show_bug.cgi?id=293 - - for details. - -2003-02-26 Frank Warmerdam - - * libtiff/tif_dir.c: fixed up the tif_postdecode settings - responsible for byte swapping complex image data. - - * libtiff/tif_lzw.c: fixed so that decoder state isn't allocated till - LZWSetupDecode(). Needed to read LZW files in "r+" mode. - -2003-02-07 Andrey Kiselev - - * tools/ppm2tiff.c: Fixed problem with too many arguments. - -2003-02-04 Andrey Kiselev - - * tools/raw2tiff.c: Memory leak fixed. - -2003-02-03 Andrey Kiselev - - * tools/fax2tiff.c, man/fax2tiff.1: Applied patch from Julien Gaulmin - (thanks, Julien!). More switches for fax2tiff tool for better control - of input and output. Details at - - http://bugzilla.remotesensing.org/show_bug.cgi?id=272 - -2003-02-03 Frank Warmerdam - - * libtiff/tif_jpeg.c: Modified to defer initialization of jpeg - library so that we can check if there is already any tile/strip data - before deciding between creating a compressor or a decompressor. - -2003-01-31 Frank Warmerdam - - * libtiff/tif_write.c: TIFFWriteCheck() now fails if the image is - a pre-existing compressed image. That is, image writing to - pre-existing compressed images is not allowed. - - * libtiff/tif_open.c: Removed error if opening a compressed file - in update mode. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=198 - -2003-01-31 Andrey Kiselev - - * config.guess, config.sub: Updated to recent upstream versions. - -2003-01-15 Frank Warmerdam - - * cut 3.6.0 Beta release. - -2002-12-20 Andrey Kiselev - - * tools/fax2ps.c, man/fax2ps.1: Page size was determined - in wrong way as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=239 - -2002-12-17 Frank Warmerdam - - * libtiff/tif_dirread.c: Allow wrong sized arrays in - TIFFFetchStripThing(). - - http://bugzilla.remotesensing.org/show_bug.cgi?id=49 - -2002-12-02 Frank Warmerdam - - * libtiff/tif_dir.c: fix problem with test on td_customValueCount. - Was using realloc even first time. Fix by Igor Venevtsev. - -2002-11-30 Frank Warmerdam - - * libtiff/tif_dir.c: fixed bug with resetting an existing custom - field value. - - * libtiff/tif_dir.c: Fixed potential problem with ascii "custom" - tags in TIFFVGetField() ... added missing break. - -2002-10-14 Frank Warmerdam - - * tools/tiff2ps.c: fixes a problem where "tiff2ps -1e" did not make - the scanline buffer long enough when writing rgb triplets. - The scanline needs to be 3 X the number of dots or else it will - contain an incomplete triplet and programs that try to separate - the eps by redefining the colorimage operator will get messed up. - Patch supplied by William Bader. - - * Makefile.in: added tif_extension.c to file list as per - http://bugzilla.remotesensing.org/show_bug.cgi?id=218. - -2002-10-11 Andrey Kiselev - - * configure, config.site, libtiff/{tif_unix.c, Makefile.in}: Fix for - large files (>2GiB) supporting. New option in the config.site: - LARGEFILE="yes". Should be enough for I/O of the large files. - -2002-10-10 Frank Warmerdam - - * libtiff/html/v3.6.0.html: new release notes. - - * libtiff/index.html: removed faq, cvs snapshot cruft. Added email - link for Andrey. Pointer to v3.6.0.html. - - * libtiff/Makefile.in: added direct rule for tiffvers.h for release. - -2002-10-07 Andrey Kiselev - * tools/tiff2ps.c, man/tiff2ps.1: Applied patch form Sebastian Eken - (thanks, Sebastian!). New switches: - -b # for a bottom margin of # inches - -c center image - -l # for a left margin of # inches - -r rotate the image by 180 degrees - New features merged with code for shrinking/overlapping. - Previously added -c and -n switches (for overriding PS units) renamed - in -x and -y respectively. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=200 - - * html/man/*.html: Updated from actual manual pages. - -2002-10-06 Frank Warmerdam - - * libtiff/tif_jpeg.c: fixed problem with boolean defined with wrong - size on windows. Use #define boolean hack. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=188 - - * libtiff/tiff.h: Don't do special type handling in tiff.h unless - USING_VISUALAGE is defined. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - -2002-10-03 Frank Warmerdam - - * libtiff/tiff.h: added COMPRESSION_JP2000. - -2002-10-02 Andrey Kiselev - - * libtiff/tif_dirread.c: Another fix for the fetching SBYTE arrays - by the TIFFFetchByteArray() function. Should finally resolve - - http://bugzilla.remotesensing.org/show_bug.cgi?id=52 - - * configure: Set -DPIXARLOG_SUPPORT option along with -DZIP_SUPPORT - - * html/Makefile.in: New targets added: html and groffhtml for - producing HTML representations of the manual pages automatically. - html target uses man2html tool, groffhtml uses groff tool. - -2002-09-29 Frank Warmerdam - - * configure, libtiff/Makefile.in: Added SCO OpenServer 5.0.6 support - from John H. DuBois III. - -2002-09-15 Andrey Kiselev - - * Makefile.in, /man/{raw2tiff.1, Makefile.in, libtiff.3}: Added - manual page for raw2tiff(1) tool. - -2002-09-12 Andrey Kiselev - - * /libtiff/{tiffio.h, tif_dir.h}: TIFFDataWidth() declaration moved to - the tiffio.h header file. - - * Makefile.in, /man/{TIFFDataWidth.3t, Makefile.in, libtiff.3}: Added - manual page for TIFFDataWidth() function - -2002-09-08 Frank Warmerdam - - * libtiff/tif_dirread.c: Expand v[2] to v[4] in TIFFFetchShortPair() - as per http://bugzilla.remotesensing.org/show_bug.cgi?id=196. - - * tools/tiff2ps.c: Don't emit BeginData/EndData DSC comments - since we are unable to properly include the amount to skip. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=80 - -2002-09-02 Andrey Kiselev - - * /libtiff/tif_dirread.c: Fixed problem with SBYTE type data fetching - in TIFFFetchByteArray(). Problem described at - http://bugzilla.remotesensing.org/show_bug.cgi?id=52 - -2002-08-22 Andrey Kiselev - - * /libtiff/tif_dirinfo.c: Further additions to free custom fields - in _TIFFSetupFieldInfo() function. - See http://bugzilla.remotesensing.org/show_bug.cgi?id=169 for details. - - * /libtiff/tif_lzw.c: Additional consistency checking added in - LZWDecode() and LZWDecodeCompat(). - Fixes http://bugzilla.remotesensing.org/show_bug.cgi?id=190 - and http://bugzilla.remotesensing.org/show_bug.cgi?id=100 - - * /libtiff/tif_lzw.c: - Added check for valid code lengths in LZWDecode() and - LZWDecodeCompat(). Fixes - http://bugzilla.remotesensing.org/show_bug.cgi?id=115 - -2002-08-16 Andrey Kiselev - - * /libtiff/{Makefile.vc, libtiff.def}: - Missed declarations added. - -2002-08-15 Frank Warmerdam - - * tif_getimage.c: Ensure that TIFFRGBAImageBegin() returns the - return code from the underlying pick function. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=177 - - * tif_dir.h: changed FIELD_CODEC to 66 from 64 to avoid overlap - with FIELD_CUSTOM as mentioned in bug 169. - - * tif_close.c: added logic to free dynamically created anonymous - field definitions to correct a small memory leak. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=169 - -2002-08-10 Andrey Kiselev - - * /tools/{raw2tiff.c, Makefile.in, Makefile.lcc, Makefile.vc}: - New tool: raw2tiff --- raw images to TIFF converter. No manual page yet. - -2002-07-31 Frank Warmerdam - - * libtiff/tif_jpeg.c: Fixed problem with setting of nrows in - JPEGDecode() as per bugzilla bug (issue 1): - - http://bugzilla.remotesensing.org/show_bug.cgi?id=129 - - * libtiff/{tif_jpeg.c,tif_strip.c,tif_print.c}: Hacked tif_jpeg.c to - fetch TIFFTAG_YCBCRSUBSAMPLING from the jpeg data stream if it isn't - present in the tiff tags. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=168 - - * libtiff/tif_read.c, libtiff/tif_write.c: TIFFReadScanline() and - TIFFWriteScanline() now set tif_row explicitly in case the codec has - fooled with the value. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=129 - -2002-06-22 Andrey Kiselev - - * /tools/tiff2ps.c: Added workaround for some software that may crash - when last strip of image contains fewer number of scanlines than - specified by the `/Height' variable. See - http://bugzilla.remotesensing.org/show_bug.cgi?id=164 - for explanation. - -2002-06-21 Andrey Kiselev - - * tools/tiff2ps, man/tiff2ps.1: New functionality for tiff2ps utility: - splitting long images in several pages. See - http://bugzilla.remotesensing.org/show_bug.cgi?id=142 for explanation. - Patch granted by John Williams . - -2002-06-11 Frank Warmerdam - - * libtiff/contrib/win95: renamed to contrib/win_dib. Added new - Tiffile.cpp example of converting TIFF files into a DIB on Win32. - This one is described in: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=143 - - * libtiff/tif_ojpeg.c: Major upgrade from Scott. See details at: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=156 - -2002-05-10 Andrey Kiselev - - * tools/tiff2ps: New commandline switches to override resolution - units obtained from the input file. Closes - http://bugzilla.remotesensing.org/show_bug.cgi?id=131 - -2002-04-26 Andrey Kiselev - - * libtiff/libtiff.def: Added missed declaration. - -2002-04-22 Andrey Kiselev - - * tools/fax2tiff.c: Updated to reflect latest changes in libtiff. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=125 - -2002-04-20 Andrey Kiselev - - * libtiff/tif_open.c: Pointers to custom procedures - in TIFFClientOpen() are checked to be not NULL-pointers. - -2002-04-18 Andrey Kiselev - - * libtiff/libtiff.def: Added missed declarations. - - * libtiff/tif_pixarlog.c: Updated for using tif_tagmethods structure. - -2002-04-16 Andrey Kiselev - - * libtiff/tif_lzw.c: Additional checks for data integrity introduced. - Should finally close - http://bugzilla.remotesensing.org/show_bug.cgi?id=100 - -2002-04-10 Andrey Kiselev - - * tools/tiff2ps: Division by zero fixed. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=88 - -2002-04-09 Andrey Kiselev - - * libtiff/: tif_dirwrite.c, tif_write.c, tiffio.h: - TIFFCheckpointDirectory() routine added. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=124 - - * man/: TIFFWriteDirectory.3t, Makefile.in: Added description - for the new function. - -2002-04-08 Andrey Kiselev - - * libtiff/: tif_codec.c, tif_compress.c, tiffiop.h: Introduced - additional members tif->tif_decodestatus and tif->tif_encodestatus - for correct handling of unconfigured codecs (we should not try to read - data or to define data size without correct codecs). - - * libtiff/tif_getimage.c: The way of codecs checking in TIFFRGBAImageOK - changed. Now it has used tif->tif_decodestatus and - tif->tif_encodestatus. - Should fix http://bugzilla.remotesensing.org/show_bug.cgi?id=119 (in - case of __cvs_8.tif test image). - - * libtiff/: tif_dirinfo.c, tif_dirread.c: Somebody makes a bug in - tif_dirread.c when TIFFCreateAnonFieldInfo was introduced. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=119 in case - of _cvs_00000-00.tif, _cvs_00000-01.tif and _cvs_00000-02.tif. - -2002-04-04 Andrey Kiselev - - * libtiff/: tif_lzw.c: Assertions in LZWDecode and LZWDecodeCompat - replaced by warnings. Now libtiff should read corrupted LZW-compressed - files by skipping bad strips. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=100 - -2002-04-03 Frank Warmerdam - - * libtiff/tif_dirwrite.c: Removed some dead code. - - * libtiff/*: Cleanup some warnings. - - * libtiff/tif_dir.c: Fixed bug with count returned by TIFFGetField() - for variable length FIELD_CUSTOM values. Was int * but should be - u_short *. - -2002-04-01 Andrey Kiselev - - * tools/: tifcp.c: Added support for 'Orientation' tag in tiffcp - utility (at cpStripToTile routine). - -2002-03-27 Frank Warmerdam - - * tif_dirread.c: avoid div-by-zero if rowbytes is zero in chop func. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=111 - - * tif_print.c: Fixed so that ASCII FIELD_CUSTOM values with - passcount set FALSE can be printed (such as TIFFTAG_SOFTWARE). - - * libtiff/tif_dir.c,tif_dirinfo.c,tif_dir.h,tif_ojpeg.c: modified so - that TIFFTAG_SOFTWARE uses FIELD_CUSTOM as an example. - -2002-03-26 Dwight Kelly - - * libtiff/: tiff.h, tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, - tif_dirwrite.c: Added get/put code for new tag XMLPACKET as defined - in Adobe XMP Technote. Added missing INKSET tag value from TIFF 6.0 spec - INKSET_MULTIINK (=2). Added missing tags from Adobe TIFF technotes: - CLIPPATH, XCLIPPATHUNITS, YCLIPPATHUNITS, OPIIMAGEID, OPIPROXY and - INDEXED. Added PHOTOMETRIC tag value from TIFF technote 4 ICCLAB (=9). - -2002-03-26 Andrey Kiselev - - * libtiff/: tif_getimage.c: TIFFReadRGBAStrip and TIFFReadRGBATile - now also uses TIFFRGBAImageOK before reading. This is additional fix - for http://bugzilla.remotesensing.org/show_bug.cgi?id=110 - -2002-03-25 Andrey Kiselev - - * libtiff/: tif_getimage.c: Additional check for supported - codecs added in TIFFRGBAImageOK and TIFFReadRGBAImage now uses - TIFFRGBAImageOK before reading. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=110 - -2002-03-15 Andrey Kiselev - - * libtiff/: tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, - tif_dirwrite.c: Added routine TIFFDataWidth for detrmining - TIFFDataType sizes instead of working with tiffDataWidth array - directly. Should prevent out-of-borders bugs in case of unknown or - broken data types. EstimateStripByteCounts routine modified, so it - won't work when tags with uknown sizes founded. - Closes http://bugzilla.remotesensing.org/show_bug.cgi?id=109 - -2002-03-13 Andrey Kiselev - - * libtiff/tif_getimage.c: Added support for correct handling - `Orientation' tag in gtTileContig. Should be added in other gt* - functions as well, but I have not images for testing yet. Partially - resolves http://bugzilla.remotesensing.org/show_bug.cgi?id=23 - -2002-03-10 Andrey Kiselev - - * libtiff/: tif_dirinfo.c, tif_dirwrite.c: Added possibility to - read broken TIFFs with LONG type used for TIFFTAG_COMPRESSION, - TIFFTAG_BITSPERSAMPLE, TIFFTAG_PHOTOMETRIC. Closes - http://bugzilla.remotesensing.org/show_bug.cgi?id=99 - -2002-03-08 Andrey Kiselev - - * libtiff/Makefile.in, tools/Makefile.in: Shared library will not - be stripped when installing, utility binaries will do. Closes - http://bugzilla.remotesensing.org/show_bug.cgi?id=93 - -2002-02-28 Frank Warmerdam - - * man/TIFFGetField: fixed type of TIFFTAG_COPYRIGHT. - - * man/libtiff.3t: added copyright tag info. - -2002-02-11 Frank Warmerdam - - * libtiff/{tiff.h,tif_fax3.c}: Add support for __arch64__. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=94 - - * man/Makefile.in: Patch DESTDIR handling - - http://bugzilla.remotesensing.org/show_bug.cgi?id=95 - - * configure: OpenBSD changes for Sparc64 and DSO version. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=96 - -2002-02-05 Frank Warmerdam - - * config.site/configure: added support for OJPEG=yes option to enable - OJPEG support from config.site. - -2002-01-27 Frank Warmerdam - - * html/document.html: fixed links for TIFf 6 docs. - -2002-01-18 Frank Warmerdam - - * config.guess, config.sub: Updated from ftp.gnu.org/pub/config. - - * libtiff/tif_read.c: Fixed TIFFReadEncodedStrip() to fail if the - decodestrip function returns anything not greater than zero as per - http://bugzilla.remotesensing.org/show_bug.cgi?id=97 - - * configure: Modify CheckForBigEndian so it can work in a cross - compiled situation. - -2002-01-16 Frank Warmerdam - - * tools/tiffdump.c: include TIFFTAG_JPEGTABLES in tag list. - - * tools/tiffset.c: fix bug in error reporting. - - * tools/tiffcp.c: fix several warnings that show up with -Wall. - -2002-01-04 Frank Warmerdam - - * libtiff/tif_jpeg.c: fixed computation of segment_width for - tiles files to avoid error about it not matching the - cinfo.d.image_width values ("JPEGPreDecode: Improper JPEG strip/tile - size.") for ITIFF files. Apparently the problem was incorporated since - 3.5.5, presumably during the OJPEG/JPEG work recently. - -2001-12-15 Frank Warmerdam - - * configure, libtiff/Makefile.in: Changes for building on MacOS 10.1. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=94 - - * libtiff/tif_getimage.c: If DEFAULT_EXTRASAMPLE_AS_ALPHA is 1 - (defined in tiffconf.h - 1 by default) then the RGBA interface - will assume that a fourth extra sample is ASSOCALPHA if the - EXTRASAMPLE value isn't set for it. This changes the behaviour of - the library, but makes it work better with RGBA files produced by - lots of applications that don't mark the alpha values properly. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=93 - http://bugzilla.remotesensing.org/show_bug.cgi?id=65 - -2001-12-12 Frank Warmerdam - - * libtiff/tif_jpeg.c: allow jpeg data stream sampling values to - override those from tiff directory. This makes this work with - ImageGear generated files. - -2001-12-07 Frank Warmerdam - - * html/Makefile.in: added missing images per bug 92. - - * port/Makefile.in: fixed clean target per bug 92. - -2001-11-28 Frank Warmerdam - - * Reissue 3.5.7 release. - - * libtiff/mkversion.c: Fix output of TIFF_VERSION to be - YYYYMMDD so that it is increasing over time. - - * Makefile.in: Ensure that tiffvers.h is regenerated in the - make release target. - - * Makefile.in: added libtiff/tiffvers.h to the release file list. - -2001-11-23 Frank Warmerdam - - * added html/v3.5.7.html, updated html/index.html. - - * Makefile.in: added contrib/addtiffo/tif_ovrcache.{c,h}. - -2001-11-15 Frank Warmerdam - - * configure: fixed test for -lm. - -2001-11-02 Frank Warmerdam - - * Added PHOTOMETRIC_ITULAB as per bug 90. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=90 - -2001-10-10 Frank Warmerdam - - * libtiff/tiff.h: I have created COMPRESSION_CCITT_T4, - COMPRESSION_CCITT_T6, TIFFTAG_T4OPTIONS and TIFFTAG_T6OPTIONS aliases - in keeping with TIFF 6.0 standard in tiff.h - - http://bugzilla.remotesensing.org/show_bug.cgi?id=83 - -2001-09-26 Frank Warmerdam - - * libtiff/tif_dirwrite.c: added TIFFRewriteDirectory() function. - Updated TIFFWriteDirectory man page to include TIFFRewriteDirectory. - -2001-09-24 Frank Warmerdam - - * libtiff/tif_lzw.c: Avoid MS VC++ 5.0 optimization bug. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=78 - - * libtiff/tif_lzw.c: added dummy LZWSetupEncode() to report an - error about LZW not being available. - - * libtiff/tif_dir.c: propagate failure to initialize compression - back from TIFFSetField() as an error status, so applications can - detect failure. - - * libtiff/tif_dir.c: removed the auto replacement of - COMPRESSION_LZW with COMPRESSION_NONE in _TIFFVSetField(). - - * Removed Makefile, tools/Makefile, port/install.sh, man/Makefile - from CVS as they are all supposed to be auto-generated by configure. - -2001-09-22 Frank Warmerdam - - * libtiff/tif_ojpeg.c: new update from Scott. - -2001-09-09 Frank Warmerdam - - * libtif/tif_fax3.c: Removed #ifdef PURIFY logic, and modified to - always use the "safe" version, even if there is a very slight - cost in performance. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=54 - - * libtiff/Makefile.in: Fixed @DSOSUB_VERSION to be @DSOSUF_VERSION@ - in two places. - - * libtiff/tif_getimage.c: Fixed problem with reading strips or - tiles that don't start on a tile boundary. Fix contributed by - Josep Vallverdu (from HP), and further described in bug 47. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=47 - - * tools/tiff2ps.c: added OJPEG YCbCr to RGB support. - - * libtiff/tif_ojpeg.c: Applied substantial patch from Scott. - -2001-09-06 Frank Warmerdam - - * libtiff/tif_packbits.c: fixed memory overrun error. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=77 - -2001-08-31 Frank Warmerdam - - * libtiff/tif_getimage.c: relax handling of contig case where - there are extra samples that are supposed to be ignored. This - should now work for 8bit greyscale or palletted images. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=75 - -2001-08-28 Frank Warmerdam - - * libtiff/tif_getimage.c: Don't complain for CMYK (separated) - images with more than four samples per pixel. See: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=73 - -2001-08-10 Frank Warmerdam - - * libtiff/tif_getimage.c: Use memmove() instead of TIFFmemcpy() - in TIFFReadRGBATile() to avoid issues in cases of overlapping - buffers. See Bug 69 in Bugzilla. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=69 - - * tools/tiff2rgba.c: fixed getopt() call so that -b works again. - -2001-08-09 Frank Warmerdam - - * libtiff/tiff.h, libtiff/tif_fax3.c: added check for __LP64__ - when checking for 64 bit architectures as per bugzilla bug 67. - -2001-07-27 Frank Warmerdam - - * man/Makefile.in: add TIFFClientOpen link as per debian submitted - bug 66. - -2001-07-20 Frank Warmerdam - - * libtiff/tif_jpeg.c: Define HAVE_BOOLEAN on windows if RPCNDR.H - has been included. - -2001-07-19 Frank Warmerdam - - * libtiff/tif_open.c: Seek back to zero after failed read, - before writing header. - -2001-07-18 Frank Warmerdam - - * libtiff/tif_ojpeg.c: updates from Scott. Handles colors - much better. Now depends on having patched libjpeg as per - patch in contrib/ojpeg/*. - -2001-07-17 Frank Warmerdam - - * */Makefile.in: added DESTDIR support. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=60 - -2001-07-16 Frank Warmerdam - - * configure, libtiff/Makefile.in: applied OpenBSD patches - as per: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=61 - -2001-06-28 Frank Warmerdam - - * libtiff/tif_getimage.c: Fixed so that failure is properly - reported by gtTileContig, gtStripContig, gtTileSeparate and - gtStripSeparate. - - See http://bugzilla.remotesensing.org/show_bug.cgi?id=51 - - * tiffcmp.c: Fixed multi samples per pixel support for ContigCompare. - Updated bug section of tiffcmp.1 to note tiled file issues. - - See http://bugzilla.remotesensing.org/show_bug.cgi?id=53 - -2001-06-22 Frank Warmerdam - - * configure: Changes for DSO generation on AIX provided by - John Marquart . - - * configure, libtiff/Makeifle.in: Modified to build DSOs properly - on Darwin thanks to Robert Krajewski (rpk@alum.mit.edu) and - Keisuke Fujii (fujiik@jlcuxf.kek.jp). - -2001-06-13 Frank Warmerdam - - * tools/tiff2rgba.c: added -n flag to avoid emitting alpha component. - - * man/tiff2rgba.1: new - -2001-05-22 Frank Warmerdam - - * Added tiffset and tif_ojpeg to the dist lists in Makefile.in. - -2001-05-13 Frank Warmerdam - - * libtiff/tools/thumbnail.c: changed default output compression - to packbits from LZW since LZW isn't generally available. - -2001-05-12 Frank Warmerdam - - * libtiff/tif_ojpeg.c: New. - libtiff/tif_jpeg.c, tiffconf.h, tif_getimage.c: changes related - to OJPEG support. - - Scott Marovich supplied OJPEG support. - -2001-05-11 Frank Warmerdam - - * tiff.h: removed, it duplicates libtiff/tiff.h. - -2001-05-08 Frank Warmerdam - - * libtiff/tif_dirinfo.c: moved pixar and copyright flags to - ensure everything is in order. - - * libtiff/libtiff.def: added TIFFCreateDirectory and - TIFFDefaultStripSize as per: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=46 - -2001-05-02 Frank Warmerdam - - * libtiff/tif_dirinfo.c: Modified the TIFF_BYTE definition for - TIFFTAG_PHOTOSHOP to use a writecount of TIFF_VARIABLE2 (-3) to - force use of uint32 counts instead of short counts. - - * libtiff/tif_dirwrite.c: Added support for TIFF_VARIABLE2 in the - case of writing TIFF_BYTE/TIFF_SBYTE fields. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=43 - -2001-05-01 Frank Warmerdam - - * libtiff/tif_dirinfo.c: removed duplicate TIFFTAG_PHOTOSHOP as per - bug report http://bugzilla.remotesensing.org/show_bug.cgi?id=44 - -2001-04-05 Frank Warmerdam - - * tiffio.h: removed C++ style comment. - - * configure: fixed up SCRIPT_SH/SHELL handling. - - * Makefile.in: Fixed SCRIPT_SH/SHELL handling. - - * config.guess: documented more variables as per bug 40. - -2001-04-03 Frank Warmerdam - - * configure, *Makefile.in: Various changes to improve configuration - for HP/UX specifically, and also in general. They include: - - Try to handle /usr/bin/sh instead of /bin/sh where necessary. - - Upgrade to HP/UX 10.x+ compiler, linker and dso options. - - Fixed mmap() test to avoid MMAP_FIXED ... it isn't available on HP - - Use -${MAKEFLAGS} in sub makes from makefiles. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=40 - -2001-04-02 Frank Warmerdam - - * libtiff/tiff.h: Applied hac to try and resolve the problem - with the inttypes.h include file on AIX. - - See http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - - * VERSION: update to 3.5.7 beta in preparation for release. - - * configure/config.site: modified to check if -lm is needed for - MACHDEPLIBS if not supplied by config.site. Needed for Darwin. - - * config.guess: updated wholesale to an FSF version apparently - from 1998 (as opposed to 1994). This is mainly inspired by - providing for MacOS X support. - -2001-03-29 Frank Warmerdam - - * configure, Makefile.in, etc: added support for OPTIMIZER being - set from config.site. - -2001-03-28 Frank Warmerdam - - * fax2ps.c: Helge (libtiff at oldach.net) submitted fix: - - Here's a fix for fax2ps that corrects behaviour for non-Letter paper - sizes. It fixes two problems: - - Without scaling (-S) the fax is now centered on the page size specified - with -H and/or -W. Before, fax2ps was using an obscure and practially - useless algorithm to allocate the image relative to Letter sized paper - which sometime sled to useless whitespace on the paper, while at the - same time cutting of the faxes printable area at the opposite border. - - Second, scaling now preserves aspect ratio, which makes unusual faxes - (in particular short ones) print properly. - - See http://bugzilla.remotesensing.org/show_bug.cgi?id=35 - - * tiff2ps.c/tiff2ps.1: Substantial changes to tiff2ps by - Bruce A. Mallett. See check message for detailed information - on all the changes, including a faster encoder, fixes for level - 2 PostScript, and support for the imagemask operator. - -2001-03-27 Frank Warmerdam - - * libtiff/tiffio.h: Changed "#if LOGLUV_PUBLIC" to - "#ifdef LOGLUV_PUBLIC" so it will work with VisualAge on AIX. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=39 - -2001-03-16 Frank Warmerdam - - * tif_dirinfo.c: moved definition of copyright tag in field list. - Apparently they have to be in sorted order by tag id. - -2001-03-13 Frank Warmerdam - - * tif_getimage.c: Added support for 16bit minisblack/miniswhite - images in RGBA interface. - -2001-03-02 Frank Warmerdam - - * Added TIFFTAG_COPYRIGHT support. - -2001-02-19 Frank Warmerdam - - * Brent Roman contributed updated tiffcp utility (and tiffcp.1) - with support for extracting subimages with the ,n syntax, and also - adding the -b bias removal flag. - -2001-02-16 Frank Warmerdam - - * libtiff/libtiff.def: Brent Roman submitted new version adding - serveral missing entry points. - - * libtiff/tif_dirinfo.c: don't declare tiffFieldInfo static on VMS. - Some sort of weird VMS thing. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=31 - - * tif_luv.c/tiff.h/tiffio.h: - New version of TIFF LogLuv (SGILOG) modules contributed by Greg Ward - (greg@shutterfly.com). He writes: - - 1) I improved the gamut-mapping function in tif_luv.c for imaginary - colors, because some images were being super-saturated on the input - side and this resulted in some strange color shifts in the output. - - 2) I added a psuedotag in tiff.h to control random dithering during - LogLuv encoding. This is turned off by default for 32-bit LogLuv and - on for 24-bit LogLuv output. Dithering improves the average color - accuracy over the image. - - 3) I added a #define for LOG_LUV_PUBLIC, which is enabled by default in - tiffio.h, to expose internal routines for converting between LogLuv and - XYZ coordinates. This is helpful for writing more efficient, - specialized conversion routines, especially for reading LogLuv files. - - Changes applied with minor edits. - -2001-01-23 Frank Warmerdam - - * tif_fax3.c: keep rw_mode flag internal to fax3 state to remember - whether we are encoding or decoding. This is to ensure graceful - recovery if TIFFClientOpen() discovers an attempt to open a compressed - file for "r+" access, and subsequently close it, as it resets the - tif_mode flag to O_RDONLY in this case to avoid writes, confusing the - compressor's concept of whether it is in encode or decode mode. - -2001-01-08 Mike Welles - - * Makefile.in: Now cleaning up after itself after creating the .tar.gz and .zip - -2001-01-07 Frank Warmerdam - - * html/libtiff.html: Fixed arguments in example for TIFFRGBAImageGet() - as per bug report by Patrick Connor. - -2000-12-28 Frank Warmerdam - - * Added RELEASE-DATE file to release file list. - - * Fixed libtiff/makefile.vc to make tiffvers.h not version.h. - -2000-12-22 Mike Welles - * added link to CVS mirror from index.html - - * updated html/internals.html to note that LZW compression is - not supported by default. - -2000-12-22 Frank Warmerdam - - * updated html/libtiff.html to not point at Niles' old JPL web site - for the man pages, point at www.libtiff.org. - -2000-12-21 Frank Warmerdam - - * libtiff/tif_apple.c: Applied "Carbon" support patches supplied by - Leonard Rosenthol . May interfere - with correct building on older systems. If so, please let me know. - -2000-12-19 Mike Welles - - * Took out LZW Encoding from tif_lzw.c - - * Created HOWTO-RELEASE - - * Created html/v3.5.6.html - - * updated index.html - -2000-12-01 Frank Warmerdam - - * Added patches for EOFB support in tif_fax3.c and tif_fax3.h. - Patches supplied by Frank Cringle - Example file at: ftp://ftp.remotesensing.org/pub/libtiff/eofb_396.tif - -2000-11-24 Frank Warmerdam - - * libtiff/Makefile.in: Added an installPrivateHdrs and install-private - target so that the private headers required by libgeotiff can be - installed with the others. They are not installed by default. - - * libtiff/Makefile.in: Added @MACHLIBDEPS@ to LINUXdso and GNULDdso - targets so libtiff.so will be built with an explicit dependency - on libm.so. - - * libtiff/Makefile.in: Use softlinks to link libtiff.so.3 to - libtiff.so.3.5.5. - - * libtiff/Makefile.in & configure: Remove all references to the ALPHA - file, or ALPHA version logic. Added stuff about DIST_POINT in - place of DIST_TYPE and the alpha release number stuff. - -2000-11-22 Frank Warmerdam - - * I have applied a patch from Steffen Moeller to - the configure script so that it now accepts the --prefix, and - --exec-prefix directives. - -2000-11-13 Frank Warmerdam - - * I have made a variety of modifications in an effort to ensure the - TIFFLIB_VERSION macro is automatically generated from the RELEASE-DATE - file which seems to be updated regularly. - - o mkversion.c now reads RELEASE-DATE and emits TIFFLIB_VERSION in - version include file. - o renamed version.h to tiffvers.h because we now have to install it - with the public libtiff include files. - o include tiffvers.h in tiffio.h. - o updated tif_version.c to use tiffvers.h. - o Updated Makefile.in accordingly. - - * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=25 - I have updated the win32 detection rules in tiffcomp.h. - -2000-10-20 Frank Warmerdam - - * tif_getimage.c: Fixed RGBA translation for YCbCr images for which - the strip/tile width and height aren't multiples of the sampling size. - See http://bugzilla.remotesensing.org/show_bug.cgi?id=20 - Some patches from Rick LaMont of Dot C Software. - - * Modified tif_packbits.c encoder to avoid compressing more - data than provided if rowsize doesn't factor into provided data - (such as occurs for YCbCr). - -2000-10-19 Frank Warmerdam - - * tools/rgb2ycbcr.c: fixed output strip size to account for vertical - roundup if rows_per_strip not a multiple of vertical sample size. - -2000-10-16 Frank Warmerdam - - * tif_dir.c: Clear TIFF_ISTILED flag in TIFFDefaultDirectory - as per http://bugzilla.remotesensing.org/show_bug.cgi?id=18 - from vandrove@vc.cvut.cz. - - * Modified tif_packbits.c decoding to avoid overrunning the - output buffer, and to issue a warning if data needs to be - discarded. See http://bugzilla.remotesensing.org/show_bug.cgi?id=18 - -2000-10-12 Frank Warmerdam - - * Modified tiff2bw to ensure portions add to 100%, and that - white is properly recovered. - - See bug http://bugzilla.remotesensing.org/show_bug.cgi?id=15 - Patch c/o Stanislav Brabec - -2000-09-30 Frank Warmerdam - - * Modified TIFFClientOpen() to emit an error on an attempt to - open a comperessed file for update (O_RDWR/r+) access. This is - because the compressor/decompressor code gets very confused when - the mode is O_RDWR, assuming this means writing only. See - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=13 - -2000-09-27 Frank Warmerdam - - * Added GNULDdso target an`d switched linux and freebsd to use it. - -2000-09-26 Frank Warmerdam - - * Applied patch for 0x0000 sequences in tif_fax3.h's definition - of EXPAND1D() as per bug 11 (from Roman). - -2000-09-25 Frank Warmerdam - * Fixed tiffcomp.h to avoid win32 stuff if unix #defined, to improve - cygwin compatibility. - - * Applied patch from Roman Shpount to tif_fax3.c. This seems to - be a proper fix to the buffer sizing problem. See - http://bugzilla.remotesensing.org/show_bug.cgi?id=11 - - * Fixed tif_getimage.c to fix overrun bug with YCbCr images without - downsampling. http://bugzilla.remotesensing.org/show_bug.cgi?id=10 - Thanks to Nick Lamb for reporting the - bug and proving the patch. - -2000-09-18 Frank Warmerdam - - * Fixed tif_jpeg.c so avoid destroying the decompressor before - we are done access data thanks to bug report from: - Michael Eckstein . - - * Reverted tif_flush change. - -2000-09-14 Frank Warmerdam - - * tif_flush.c: Changed so that TIFFFlushData() doesn't return an - error when TIFF_BEENWRITING is not set. This ensures that the - directory contents can still be flushed by TIFFFlush(). - -2000-08-14 Frank Warmerdam - - * tif_open.c: Don't set MMAP for O_RDWR files. - - * tif_open.c: Set STRIPCHOP_DEFAULT for O_RDWR as well as O_RDONLY - so that files opened for update can be strip chopped too. - - * tif_read.c: fixed up bug with files missing rowsperstrip and - the strips per separation fix done a few weeks ago. - -2000-07-17 Frank Warmerdam - - * Tentatively added support for SAMPLEFORMAT_COMPLEXIEEEFP, and - SAMPLEFORMAT_COMPLEXINT. - -2000-07-13 Mike Welles - - * index.html, bugs.html: added bugzilla info. - -2000-07-12 Frank Warmerdam - - * tif_read.c: fix subtle bug with determining the number of - rows for strips that are the last strip in a separation but - not the last strip of all in TIFFReadEncodedStrip(). - - * Applied 16/32 bit fix to tif_fax3.c. Fix supplied by - Peter Skarpetis - -2000-06-15 Frank Warmerdam - - * Modified tiffio.h logic with regard to including windows.h. It - won't include it when building with __CYGWIN__. - -2000-05-11 Frank Warmerdam - - * README: update to mention www.libtiff.org, don't list Sam's old - email address. - - * configure: Fixed DSO test for Linux as per patch from - Jan Van Buggenhout . - -2000-04-21 Frank Warmerdam - - * libtiff/tif_dirread.c: Don't use estimate strip byte count for - one tile/strip images with an offset, and byte count of zero. These - could be "unpopulated" images. - -2000-04-18 Frank Warmerdam - - * contrib/addtiffo: Added "averaging" resampling option. - - * tools/tiffsplit.c: Copy TIFFTAG_SAMPLEFORMAT. - -Tue Apr 18 16:18:08 2000 Frank Warmerdam - - * tools/Makefile.in: Modified to install properly on SGI. - -2000-04-12 Mike Welles - * configure: Fixed stupid mistake in libc6 test on Linux - -2000-04-04 Mike Welles - * tif_win32.c: Applied patch to fix overreads and ovverwrites - caught by BoundsChecker. From Arvan Pritchard - (untested). - - * tif_getimage.c: Applied patch to silence VC6 warnings. From - Arvan Pritchard - - * tif_lzw.c: Applied patch to silence VC6 warnings. From - Arvan Pritchard - -2000-03-28 Frank Warmerdam - - * Added contrib/stream (stream io) code submitted by Avi Bleiweiss. - -2000-03-28 Frank Warmerdam *** 3.5.5 release *** - - * fax2ps: Fixed mixup of width and height in bounding box statement - as per submission by Nalin Dahyabhai . - -2000-03-27 Mike Welles - - * fax2ps: Modified printruns to take uint32 instead of uint16. - Patch courtesy of Bernt Herd - -2000-03-20 Mike Welles - - * configure: added test for libc6 for linux targets. Bug reported by - Stanislav Brabec - - * Added 3.5 docs to html/Makefile.in. - Thanks to Stanislav Brabec - - * configure: fixed bugs in sed scripts - (applied sed script s:/@:s;@:;s:/s;;:;: to configure). - fix submitted to Stanislav Brabec - - * tools/iptcutil was not in files list, and wasn't being - added to tar archive. Updated Makefile.in. - -2000-03-17 Frank Warmerdam - - * tif_fax3.c: Fixed serious bug introduced during the uint16->uint32 - conversion for the run arrays. - -2000-03-03 Frank Warmerdam - - * Set td_sampleformat default to SAMPLEFORMAT_UINT instead of - SAMPLEFORMAT_VOID in TIFFDefaultDirectory() in tif_dir.c. - -2000-03-02 Frank Warmerdam - - * Added "GetDefaulted" support for TIFFTAG_SAMPLEFORMAT in tif_aux.c. - - * Patched tif_fax3.c so that dsp->runs is allocated a bit bigger - to avoid overruns encountered with frle_bug.tif. - -Tue Feb 15 22:01:05 2000 Frank Warmerdam - - * Fixed tools/tiffcmp so that stopondiff testing works. - Patch care of Joseph Orost . - -2000-01-28 - - * Modified tif_unix.c to support 2-4GB seeks if USE_64BIT_API is - set to 1, and added default (off) setting in tiffconf.h. This - should eventually be set by the configure script somehow. - - The original work on all these 2-4GB changes was done by - Peter Smith (psmith@creo.com). - - * Modified tif_win32.c to support 2-4GB seeks. - - * tentatively changed toff_t to be unsigned instead of signed to - facilitate support for 2-4GB files. - - * Updated a variety of files to use toff_t. Fixed some mixups - between toff_t and tsize_t. - -Fri Jan 28 10:13:49 2000 Frank Warmerdam - - * Largely reimplemented contrib/addtiffo to avoid temp files, - updating the TIFF file in place. Fixed a few other bugs to. - - * Set tif_rawdatasize to zero when freeing raw data buffer in - TIFFWriteDirectory(). - - * Enabled "REWRITE_HACK" in tif_write.c by default. - - * Fix bug in tif_write.c when switching between reading one directory - and writing to another. - - * Made TIFFWriteCheck() public, and added TIFFCreateDirectory() - -Wed Jan 5 12:37:48 2000 Frank Warmerdam - - * Added TIFFmemory(3t) functions to libtiff.def. - -Tue Jan 4 13:39:00 2000 Frank Warmerdam - - * Added libtiff/libtiff.def to TIFFILES distribution list. - -Mon Dec 27 12:13:39 EST 1999 Mike Welles - - * Created lzw compression kit, as a new module (libtiff-lzw-compression-kit). - - * Altered descriptions in tools to reflect "by default" lzw not supported - - * Updated index.html to note lzw compression kit. - -Tue Dec 21 14:01:51 1999 Frank Warmerdam - - * Added fax3sm_winnt.c to distribution list in Makefile.in. - -Tue Dec 21 11:04:45 EST 1999 Mike Welles *** 3.5.4 release *** - - * Aadded Pixar tag support. Contributed by Phil Beffery - - * Made one more change to tif_dir.c for removal of LZW compression. Also added notice - when LZW compression invoked. - - * Changed default compression in tools to TIFF_PACKBITS, and changed usage descriptions - in tools to reflect removal of LZW compression - -Mon Dec 20 18:39:02 EST 1999 Mike Welles - - * Fixed bug that caused LZW (non) compression to segfault. Added - warning about LZW compression removed being removed, and why. - - * Added nostrip to install in tools/Makefile.in so that debugging - symbols are kept. - -Tue Dec 7 12:04:47 EST 1999 Mike Welles - - * Added patch from Ivo Penzar , - supporting Adobe ZIP deflate. Untested. - -Sat Dec 4 15:47:11 1999 Frank Warmerdam - - * Made Packbits the default compression in tools/tiff2rgba.c instead - of LZW. - -Tue Nov 30 14:41:43 1999 Frank Warmerdam *** 3.5.3. release *** - - * Added tif_luv to contrib/djgpp/Makefile.lib. - -Tue Nov 30 14:15:32 EST 1999 Mike Welles - - * Added zip creation to relase makefile target - - * Added html for TIFFWriteTile.3t man page. - -Tue Nov 30 09:20:16 1999 Frank Warmerdam - - * Added some changes to tif_write.c to support rewriting existing - fixed sized tiles and strips. Code mods disabled by default, only - enabled if REWRITE_HACK is defined for now. - -Mon Nov 29 11:43:42 1999 Frank Warmerdam - - * Added TIFFWriteTile.3t man page. - -Sun Nov 28 20:36:18 1999 Frank Warmerdam - - * Added notes on use of makefile.vc in build.html, and fixed - email subscription address. - -199-11-28 Mike Welles - - * Fixed apocalypse-inducing y2k bug in contrib/ras/ras2tiff.c - - * Did some casts cleaning up to reduce compiler warnings in tif_fax3.c, - from Bruce Carmeron -- modifications of - changes made by Frank (sun cc still complained on cast). - - * Added tiffconf.h to install target per request from Bill - Radcliffe : "We need a way for ImageMagick to - know features have been compiled into the TIFF library in order to - handle things properly". - -Sat Nov 27 16:49:21 1999 Frank Warmerdam - - * fixed various VC++ warnings as suggested by Gilles Vollant - . - -Wed Nov 24 12:08:16 1999 Frank Warmerdam - - * Modified TIFFquery.3t man pages info on TIFFIsByteSwapped() to - not imply applications are responsible for image data swapping. - -1999-11-22 Mike Welles - * HTML-ized the man pages, added to html/man - - * Removed LZW Compression to comply with Unisys patent extortion. - -1999-09-29 Mike Welles - * Corrected one remaining 16 -> 32 bit value in tif_fax3.c, - From Ivo Penzar - -1999-09-26 Mike Welles *** 3.5.2 release *** - * Corrected alpha versioning. - - * Removed distinction between alpha and release targets in Makefile.in. - - * added release.stamp target, which tags cvs tree, and updates - "RELEASE-DATE" - - * added releasediff target, which diffs tree with source as of - date in "RELEASE-DATE" - - * Ticked up version to 3.5.2 (alpha 01 -- but I think we'll moving - away from alpha/non-alpha distinctions). - - * updated html to reflect release - -1999-09-23 - - * Set O_BINARY for tif_unix.c open() ... used on cygwin for instance. - - * Added CYGWIN case in configure. - -Fri Sep 17 00:13:51 CEST 1999 Mike Welles - - * Applied Francois Dagand's patch to handle fax decompression bug. - (sizes >= 65536 were failing) - -Tue Sep 14 21:31:43 1999 Frank Warmerdam - - * Applied "a" mode fix to tif_win32.c/TIFFOpen() as suggested - by Christopher Lawton - -Wed Sep 8 08:19:18 1999 Frank Warmerdam - - * Added IRIX/gcc, and OSF/1 4.x support on behalf of - Albert Chin-A-Young - - * Added TIFFReassignTagToIgnore() API on behalf of - Bruce Cameron . Man page still pending. - -Wed Aug 25 11:39:07 1999 Frank Warmerdam - - * Added test target in Makefile, test_pics.sh script and pics/*.rpt - files to provide for a rudimentary testsuite. - - * Added contrib/tags back from old distribution ... fixed up a bit. - -1999-08-16 - - * Added simple makefile.vc makefiles for building with MS VC++ - on Windows NT/98/95 in console mode. Stuff in contrib/win* make give - better solutions for some users. - -Mon Aug 16 21:52:11 1999 Frank Warmerdam - - * Added addtiffo (add overviews to a TIFF file) in contrib. Didn't - put it in tools since part of it is in C++. - -1999-08-16 Michael L. Welles - - * Updated html/index.html with anon CVS instructions. - -Mon Aug 16 13:18:41 1999 Frank Warmerdam - - * pre-remove so link before softlink in LINUXdso action in - libtiff/Makefile.in to avoid failure on LINUXdso builds other than - the first. - - * Fixed problem with cvtcmap() in tif_getimage.c modifying the - colormaps owned by the TIFF handle itself when trying to fixup wrong - (eight bit) colormaps. Corrected by maintaining a private copy of - the colormap. - - * Added TIFFReadRGBATile()/TIFFReadRGBAStrip() support in - tif_getimage.c. - - * CVS Repository placed at remotesensing.org. ChangeLog added. diff --git a/tiff/HOWTO-RELEASE b/tiff/HOWTO-RELEASE deleted file mode 100755 index e7973a6..0000000 --- a/tiff/HOWTO-RELEASE +++ /dev/null @@ -1,117 +0,0 @@ -HOWTO-RELEASE: - -Notes on releasing. - -0. Make sure that you have current FSF releases of autoconf, automake, - and libtool packages installed under a common installation prefix - and that these tools are in your executable search path prior to - any other installed versions. Versions delivered with Linux may be - altered so it is best to install official FSF releases. GNU 'm4' - 1.4.16 is needed in order to avoid bugs in m4. These packages may - be downloaded from the following ftp locations: - - m4 - ftp://ftp.gnu.org/pub/gnu/m4 - autoconf - ftp://ftp.gnu.org/pub/gnu/autoconf - automake - ftp://ftp.gnu.org/pub/gnu/automake - libtool - ftp://ftp.gnu.org/pub/gnu/libtool - - It is recommanded building m4 before autoconf, since the latest requires - the former. - - Release builds should only be done on a system with a functioning - and correctly set system clock and on a filesystem which accurately - records file update times. Use of GNU make is recommended. - -1. Commit any unsaved changes. - -2. Create html/vX.X.html. Take ChangeLog entries and html-ify in there. - Easist thing to do is take html/vX.(X-1).html and use it as a template. - Add that file to the list of EXTRA_DIST files in the html/Makefile.am. - -3. Update html/index.html to refer to this new page as the current release. - -4. Increment the release version in configure.ac. Put 'alpha' or - 'beta' after the version, if applicable. For example: - - 4.0.0 - or - 4.0.0beta7 - - Version should be updated in two places: in the second argument of the - AC_INIT macro and in LIBTIFF_xxx_VERSION variables. - -5. Update library ELF versioning in configure.ac (LIBTIFF_CURRENT, - LIBTIFF_REVISION, and LIBTIFF_AGE). These numbers have nothing to - do with the libtiff release version numbers. - - Note that as of libtiff 4.X, proper ELF versioning is used so - please follow the rules listed in configure.ac. At a bare minimum, - you should increment LIBTIFF_REVISION for each release so that - installed library files don't overwrite existing files. If APIs - have been added, removed, or interface structures have changed, - then more care is required. - -6. Add an entry to Changelog similar to: - - * libtiff 4.0.0 released. - -7. In the source tree do - - ./autogen.sh - - This step may be skipped if you have already been using a - maintainer build with current autoconf, automake, and libtool - packages. It is only needed when updating tool versions. - -8. It is recommended (but not required) to build outside of the source - tree so that the source tree is kept in a pristine state. This - also allows sharing the source directory on several networked - systems. For example: - - mkdir libtiff-build - cd libtiff-build - /path/to/libtiff/configure --enable-maintainer-mode - - otherwise do - - ./configure --enable-maintainer-mode - -9. In the build tree do - - make release - - This will update "RELEASE-DATE", "VERSION", and libtiff/tiffvers.h - in the source tree. - -10. In the source tree, verify that the version info in RELEASE-DATE, - VERSION and libtiff/tiffvers.h is right. - -11. In the build tree do - - make - make distcheck - - If 'make distcheck' fails, then correct any issues until it - succeeds. - - Two files with names tiff-version.tar.gz and tiff-version.zip will - be created in the top level build directory. - -12. In the source tree do - - 'cvs commit'. - -13. In the source tree do - - cvs tag Release-v4-0-0 - - (or the appropriate name for the release) - -14. Copy release packages from the build tree to the - ftp.remotesensing.org ftp site. - - scp tiff-*.tar.gz tiff-*.zip \ - warmerdam@upload.osgeo.org:/osgeo/download/libtiff - -15. Announce to list, tiff@lists.maptools.org - diff --git a/tiff/Jamfile b/tiff/Jamfile deleted file mode 100755 index 6bcb990..0000000 --- a/tiff/Jamfile +++ /dev/null @@ -1,68 +0,0 @@ - -PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -#PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -# Run configure if it seems to be needed -if $(UNIX) { - DEFINES += "unix" ; # libtiff assumes this - # Genfile actually creates libtiff/tif_config.h and libtiff/tiffconf.h: - GenFileNND libtiff/tif_config.h : - "(cd $(SUBDIR); chmod +x configure ; ./configure --disable-old-jpeg --disable-pixarlog --disable-zlib --disable-jbig)" : configure ; -# "(cd $(SUBDIR); chmod +x configure ; ./configure --disable-jpeg --disable-old-jpeg --disable-pixarlog --disable-zlib --disable-jbig)" : configure ; - # Workaround Jam problem of two products from one action: - FakeFile libtiff/tiffconf.h : libtiff/tif_config.h ; -} - -# else copy them -if $(NT) { - File libtiff/tiffconf.h : libtiff/tiffconf.vc.h ; - File libtiff/tif_config.h : libtiff/tif_config.vc.h ; -} - -ObjectKeep port/getopt.c ; - -# generation utilities -if $(UNIX) { - Main mkg3states : libtiff/mkg3states.c [ CatPaths port : strcasecmp.c ] ; -} else { - Main mkg3states : libtiff/mkg3states.c [ CatPaths port : getopt.c strcasecmp.c ] ; -} -GenFileND libtiff/tif_fax3sm.c : mkg3states -c const [ NormPaths libtiff/tif_fax3sm.c ] ; - -# tiff library -LIBSRCS = tif_fax3.c tif_aux.c tif_close.c tif_codec.c tif_fax3sm.c tif_predict.c - tif_compress.c tif_dir.c tif_dirinfo.c tif_dirread.c tif_dirwrite.c - tif_dumpmode.c tif_error.c tif_getimage.c tif_flush.c tif_luv.c - tif_lzw.c tif_next.c tif_open.c tif_packbits.c tif_print.c - tif_read.c tif_swab.c tif_strip.c tif_thunder.c tif_tile.c - tif_version.c tif_warning.c tif_write.c tif_extension.c - tif_jpeg.c tif_ojpeg.c ; - -if $(UNIX) { - LIBSRCS += tif_unix.c ; -} else { - LIBSRCS += tif_win32.c ; -} - -# Optional codecs not included -# tif_zip.c -# tif_pixarlog.c -Library libtiff.lib : [ CatPaths libtiff : $(LIBSRCS) ] : : : $(JPEGINC) libtiff : ; - -#Library library : sources : flags : defines : hdrpaths : objects - -# copy header file to lib directory -File tiffconf.h : libtiff/tiffconf.h ; -#File tif_config.h : libtiff/tif_config.h ; -File tiffvers.h : libtiff/tiffvers.h ; -File tiffio.h : libtiff/tiffio.h ; -File tiff.h : libtiff/tiff.h ; -# Because we're copying them, Jam doesn't scan them, so -# we have to set the co-dependencies explicitly :-( -NIncludes tiff.h : tiffconf.h ; -NIncludes tiffio.h : tiff.h tiffvers.h ; - -# Compile some of the tools -SubInclude tools ; - diff --git a/tiff/Makefile.am b/tiff/Makefile.am deleted file mode 100755 index 996297e..0000000 --- a/tiff/Makefile.am +++ /dev/null @@ -1,59 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -docdir = $(LIBTIFF_DOCDIR) - -AUTOMAKE_OPTIONS = 1.12 dist-zip foreign -ACLOCAL_AMFLAGS = -I m4 - -docfiles = \ - COPYRIGHT \ - ChangeLog \ - README \ - README.vms \ - RELEASE-DATE \ - TODO \ - VERSION - -EXTRA_DIST = \ - HOWTO-RELEASE \ - Makefile.vc \ - SConstruct \ - autogen.sh \ - configure.com \ - nmake.opt \ - libtiff-4.pc.in - -dist_doc_DATA = $(docfiles) - -SUBDIRS = port libtiff tools build contrib test man html - -release: - (rm -f $(top_srcdir)/RELEASE-DATE && echo $(LIBTIFF_RELEASE_DATE) > $(top_srcdir)/RELEASE-DATE) - (rm -f $(top_srcdir)/VERSION && echo $(LIBTIFF_VERSION) > $(top_srcdir)/VERSION) - (rm -f $(top_srcdir)/libtiff/tiffvers.h && sed 's,LIBTIFF_VERSION,$(LIBTIFF_VERSION),;s,LIBTIFF_RELEASE_DATE,$(LIBTIFF_RELEASE_DATE),' $(top_srcdir)/libtiff/tiffvers.h.in > $(top_srcdir)/libtiff/tiffvers.h) - -pkgconfigdir = $(libdir)/pkgconfig -pkgconfig_DATA = libtiff-4.pc diff --git a/tiff/Makefile.in b/tiff/Makefile.in deleted file mode 100755 index 422fb31..0000000 --- a/tiff/Makefile.in +++ /dev/null @@ -1,961 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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-!INCLUDE nmake.opt - -all: port lib tools - -port:: - cd port - $(MAKE) /f Makefile.vc - cd.. - -lib: port - cd libtiff - $(MAKE) /f Makefile.vc - cd.. - -tools: lib - cd tools - $(MAKE) /f Makefile.vc - cd .. - -clean: - cd port - $(MAKE) /f Makefile.vc clean - cd.. - cd libtiff - $(MAKE) /f Makefile.vc clean - cd.. - cd tools - $(MAKE) /f Makefile.vc clean - cd .. diff --git a/tiff/README b/tiff/README deleted file mode 100755 index 5f30f4e..0000000 --- a/tiff/README +++ /dev/null @@ -1,61 +0,0 @@ -$Header: /cvs/maptools/cvsroot/libtiff/README,v 1.7 2012-02-18 21:53:27 bfriesen Exp $ - - -TIFF Software Distribution --------------------------- -This file is just a placeholder; all the documentation is now in -HTML in the html directory. To view the documentation point your -favorite WWW viewer at html/index.html; - -e.g. - - firefox html/index.html - -If you don't have an HTML viewer then you can read the HTML source -or fetch a PostScript version of this documentation from the directory - - ftp://ftp.remotesensing.org/pub/libtiff/ - -If you can't hack either of these options then basically what you -want to do is: - - % ./configure - % make - % su - # make install - -More information, email contacts, and mailing list information can be -found online at http://www.remotesensing.org/libtiff/. - - -Use and Copyright ------------------ -Silicon Graphics has seen fit to allow us to give this work away. It -is free. There is no support or guarantee of any sort as to its -operations, correctness, or whatever. If you do anything useful with -all or parts of it you need to honor the copyright notices. I would -also be interested in knowing about it and, hopefully, be acknowledged. - -The legal way of saying that is: - -Copyright (c) 1988-1997 Sam Leffler -Copyright (c) 1991-1997 Silicon Graphics, Inc. - -Permission to use, copy, modify, distribute, and sell this software and -its documentation for any purpose is hereby granted without fee, provided -that (i) the above copyright notices and this permission notice appear in -all copies of the software and related documentation, and (ii) the names of -Sam Leffler and Silicon Graphics may not be used in any advertising or -publicity relating to the software without the specific, prior written -permission of Sam Leffler and Silicon Graphics. - -THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - -IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -OF THIS SOFTWARE. diff --git a/tiff/README.vms b/tiff/README.vms deleted file mode 100755 index 44d9663..0000000 --- a/tiff/README.vms +++ /dev/null @@ -1,12 +0,0 @@ -Dear OpenVMS user -to make this library, execute -$@CONFIGURE -$@BUILD - -Build process should be error and warning free. When process will be finished, -LIBTIFF$STRATUP.COM file containing all required definitions, will be created. -Please call it from system startup procedure or individual user procedure LOGIN.COM -To link software with libtiff, use TIFF:LIBTIFF.OPT - -best regards, -Alexey Chupahin, elvis_75@mail.ru diff --git a/tiff/RELEASE-DATE b/tiff/RELEASE-DATE deleted file mode 100755 index 703726c..0000000 --- a/tiff/RELEASE-DATE +++ /dev/null @@ -1 +0,0 @@ -20150126 diff --git a/tiff/SConstruct b/tiff/SConstruct deleted file mode 100755 index 984b09d..0000000 --- a/tiff/SConstruct +++ /dev/null @@ -1,171 +0,0 @@ -# $Id: SConstruct,v 1.4 2007-02-24 15:03:47 dron Exp $ - -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2005, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# This file contains rules to build software with the SCons tool -# (see the http://www.scons.org/ for details on SCons). - -import os - -env = Environment() - -# Read the user supplied options -opts = Options('libtiff.conf') -opts.Add(PathOption('PREFIX', \ - 'install architecture-independent files in this directory', \ - '/usr/local', PathOption.PathIsDirCreate)) -opts.Add(BoolOption('ccitt', \ - 'enable support for CCITT Group 3 & 4 algorithms', \ - 'yes')) -opts.Add(BoolOption('packbits', \ - 'enable support for Macintosh PackBits algorithm', \ - 'yes')) -opts.Add(BoolOption('lzw', \ - 'enable support for LZW algorithm', \ - 'yes')) -opts.Add(BoolOption('thunder', \ - 'enable support for ThunderScan 4-bit RLE algorithm', \ - 'yes')) -opts.Add(BoolOption('next', \ - 'enable support for NeXT 2-bit RLE algorithm', \ - 'yes')) -opts.Add(BoolOption('logluv', \ - 'enable support for LogLuv high dynamic range encoding', \ - 'yes')) -opts.Add(BoolOption('strip_chopping', \ - 'support for strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of ~8Kb to reduce memory usage)', \ - 'yes')) -opts.Add(BoolOption('extrasample_as_alpha', \ - 'the RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don\'t mark the alpha properly', \ - 'yes')) -opts.Add(BoolOption('check_ycbcr_subsampling', \ - 'disable picking up YCbCr subsampling info from the JPEG data stream to support files lacking the tag', \ - 'yes')) -opts.Update(env) -opts.Save('libtiff.conf', env) -Help(opts.GenerateHelpText(env)) - -# Here are our installation paths: -idir_prefix = '$PREFIX' -idir_lib = '$PREFIX/lib' -idir_bin = '$PREFIX/bin' -idir_inc = '$PREFIX/include' -idir_doc = '$PREFIX/doc' -Export([ 'env', 'idir_prefix', 'idir_lib', 'idir_bin', 'idir_inc', 'idir_doc' ]) - -# Now proceed to system feature checks -target_cpu, target_vendor, target_kernel, target_os = \ - os.popen("./config/config.guess").readlines()[0].split("-") - -def Define(context, key, have): - import SCons.Conftest - SCons.Conftest._Have(context, key, have) - -def CheckCustomOption(context, name): - context.Message('Checking is the ' + name + ' option set... ') - ret = env[name] - Define(context, name + '_SUPPORT', ret) - context.Result(ret) - return ret - -def CheckFillorderOption(context): - context.Message('Checking for the native cpu bit order... ') - if target_cpu[0] == 'i' and target_cpu[2:] == '86': - Define(context, 'HOST_FILLORDER', 'FILLORDER_LSB2MSB') - context.Result('lsb2msb') - else: - Define(context, 'HOST_FILLORDER', 'FILLORDER_MSB2LSB') - context.Result('msb2lsb') - return 1 - -def CheckIEEEFPOption(context): - context.Message('Checking for the IEEE floating point format... ') - Define(context, 'HAVE_IEEEFP', 1) - context.Result(1) - return 1 - -def CheckOtherOption(context, name): - context.Message('Checking is the ' + name + ' option set... ') - ret = env[name] - Define(context, 'HAVE_' + name, ret) - context.Result(ret) - return ret - -custom_tests = { \ - 'CheckCustomOption' : CheckCustomOption, \ - 'CheckFillorderOption' : CheckFillorderOption, \ - 'CheckIEEEFPOption' : CheckIEEEFPOption, \ - 'CheckOtherOption' : CheckOtherOption \ - } -conf = Configure(env, custom_tests = custom_tests, \ - config_h = 'libtiff/tif_config.h') - -# Check for standard library -conf.CheckLib('c') -if target_os != 'cygwin' \ - and target_os != 'mingw32' \ - and target_os != 'beos' \ - and target_os != 'darwin': - conf.CheckLib('m') - -# Check for system headers -conf.CheckCHeader('assert.h') -conf.CheckCHeader('fcntl.h') -conf.CheckCHeader('io.h') -conf.CheckCHeader('limits.h') -conf.CheckCHeader('malloc.h') -conf.CheckCHeader('search.h') -conf.CheckCHeader('sys/time.h') -conf.CheckCHeader('unistd.h') - -# Check for standard library functions -conf.CheckFunc('floor') -conf.CheckFunc('isascii') -conf.CheckFunc('memmove') -conf.CheckFunc('memset') -conf.CheckFunc('mmap') -conf.CheckFunc('pow') -conf.CheckFunc('setmode') -conf.CheckFunc('sqrt') -conf.CheckFunc('strchr') -conf.CheckFunc('strrchr') -conf.CheckFunc('strstr') -conf.CheckFunc('strtol') - -conf.CheckFillorderOption() -conf.CheckIEEEFPOption() -conf.CheckCustomOption('ccitt') -conf.CheckCustomOption('packbits') -conf.CheckCustomOption('lzw') -conf.CheckCustomOption('thunder') -conf.CheckCustomOption('next') -conf.CheckCustomOption('logluv') -conf.CheckOtherOption('strip_chopping') -conf.CheckOtherOption('extrasample_as_alpha') -conf.CheckOtherOption('check_ycbcr_subsampling') - -env = conf.Finish() - -# Ok, now go to build files in the subdirectories -SConscript(dirs = [ 'libtiff' ], name = 'SConstruct') diff --git a/tiff/TODO b/tiff/TODO deleted file mode 100755 index 121d93d..0000000 --- a/tiff/TODO +++ /dev/null @@ -1,12 +0,0 @@ -# $Header: /cvs/maptools/cvsroot/libtiff/TODO,v 1.6 2002-10-10 05:28:43 warmerda Exp $ - -o gif2tiff segaulting on selected images -o tiffcmp read data by strip/tile instead of scanline -o YCbCr sampling support -o extracate colorspace conversion support -o look at isolating all codecs from TIFF library -o JPEG colormode order dependency problem -o Write documentation on how do extend tags, and how the custom field - stuff all works. - - diff --git a/tiff/VERSION b/tiff/VERSION deleted file mode 100755 index 3b5886d..0000000 --- a/tiff/VERSION +++ /dev/null @@ -1 +0,0 @@ -4.0.4beta diff --git a/tiff/aclocal.m4 b/tiff/aclocal.m4 deleted file mode 100755 index ca19cba..0000000 --- a/tiff/aclocal.m4 +++ /dev/null @@ -1,1194 +0,0 @@ -# generated automatically by aclocal 1.15 -*- Autoconf -*- - -# Copyright (C) 1996-2014 Free Software Foundation, Inc. - -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) -m4_ifndef([AC_AUTOCONF_VERSION], - [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl -m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, -[m4_warning([this file was generated for autoconf 2.69. -You have another version of autoconf. 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for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS 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Ake) contributed MIS and NILE. - if test "`(/bin/universe) 2>/dev/null`" = att ; then - echo pyramid-pyramid-sysv3 - else - echo pyramid-pyramid-bsd - fi - exit ;; - NILE*:*:*:dcosx) - echo pyramid-pyramid-svr4 - exit ;; - DRS?6000:unix:4.0:6*) - echo sparc-icl-nx6 - exit ;; - DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) - case `/usr/bin/uname -p` in - sparc) echo sparc-icl-nx7; exit ;; - esac ;; - sun4H:SunOS:5.*:*) - echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) - echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*) - echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - sun4*:SunOS:6*:*) - # According to config.sub, this is the proper way to canonicalize - # SunOS6. Hard to guess exactly what SunOS6 will be like, but - # it's likely to be more like Solaris than SunOS4. - echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - sun4*:SunOS:*:*) - case "`/usr/bin/arch -k`" in - Series*|S4*) - UNAME_RELEASE=`uname -v` - ;; - esac - # Japanese Language versions have a version number like `4.1.3-JL'. - echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` - exit ;; - sun3*:SunOS:*:*) - echo m68k-sun-sunos${UNAME_RELEASE} - exit ;; - sun*:*:4.2BSD:*) - UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` - test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 - case "`/bin/arch`" in - sun3) - echo m68k-sun-sunos${UNAME_RELEASE} - ;; - sun4) - echo sparc-sun-sunos${UNAME_RELEASE} - ;; - esac - exit ;; - aushp:SunOS:*:*) - echo sparc-auspex-sunos${UNAME_RELEASE} - exit ;; - # The situation for MiNT is a little confusing. The machine name - # can be virtually everything (everything which is not - # "atarist" or "atariste" at least should have a processor - # > m68000). The system name ranges from "MiNT" over "FreeMiNT" - # to the lowercase version "mint" (or "freemint"). Finally - # the system name "TOS" denotes a system which is actually not - # MiNT. But MiNT is downward compatible to TOS, so this should - # be no problem. - atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) - echo m68k-atari-mint${UNAME_RELEASE} - exit ;; - atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) - echo m68k-atari-mint${UNAME_RELEASE} - exit ;; - *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) - echo m68k-atari-mint${UNAME_RELEASE} - exit ;; - milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) - echo m68k-milan-mint${UNAME_RELEASE} - exit ;; - hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) - echo m68k-hades-mint${UNAME_RELEASE} - exit ;; - *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) - echo m68k-unknown-mint${UNAME_RELEASE} - exit ;; - m68k:machten:*:*) - echo m68k-apple-machten${UNAME_RELEASE} - exit ;; - powerpc:machten:*:*) - echo powerpc-apple-machten${UNAME_RELEASE} - exit ;; - RISC*:Mach:*:*) - echo mips-dec-mach_bsd4.3 - exit ;; - RISC*:ULTRIX:*:*) - echo mips-dec-ultrix${UNAME_RELEASE} - exit ;; - VAX*:ULTRIX*:*:*) - echo vax-dec-ultrix${UNAME_RELEASE} - exit ;; - 2020:CLIX:*:* | 2430:CLIX:*:*) - echo clipper-intergraph-clix${UNAME_RELEASE} - exit ;; - mips:*:*:UMIPS | mips:*:*:RISCos) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c -#ifdef __cplusplus -#include /* for printf() prototype */ - int main (int argc, char *argv[]) { -#else - int main (argc, argv) int argc; char *argv[]; { -#endif - #if defined (host_mips) && defined (MIPSEB) - #if defined (SYSTYPE_SYSV) - printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_SVR4) - printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) - printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); - #endif - #endif - exit (-1); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && - dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && - SYSTEM_NAME=`$dummy $dummyarg` && - { echo "$SYSTEM_NAME"; exit; } - echo mips-mips-riscos${UNAME_RELEASE} - exit ;; - Motorola:PowerMAX_OS:*:*) - echo powerpc-motorola-powermax - exit ;; - Motorola:*:4.3:PL8-*) - echo powerpc-harris-powermax - exit ;; - Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) - echo powerpc-harris-powermax - exit ;; - Night_Hawk:Power_UNIX:*:*) - echo powerpc-harris-powerunix - exit ;; - m88k:CX/UX:7*:*) - echo m88k-harris-cxux7 - exit ;; - m88k:*:4*:R4*) - echo m88k-motorola-sysv4 - exit ;; - m88k:*:3*:R3*) - echo m88k-motorola-sysv3 - exit ;; - AViiON:dgux:*:*) - # DG/UX returns AViiON for all architectures - UNAME_PROCESSOR=`/usr/bin/uname -p` - if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] - then - if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ - [ ${TARGET_BINARY_INTERFACE}x = x ] - then - echo m88k-dg-dgux${UNAME_RELEASE} - else - echo m88k-dg-dguxbcs${UNAME_RELEASE} - fi - else - echo i586-dg-dgux${UNAME_RELEASE} - fi - exit ;; - M88*:DolphinOS:*:*) # DolphinOS (SVR3) - echo m88k-dolphin-sysv3 - exit ;; - M88*:*:R3*:*) - # Delta 88k system running SVR3 - echo m88k-motorola-sysv3 - exit ;; - XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) - echo m88k-tektronix-sysv3 - exit ;; - Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) - echo m68k-tektronix-bsd - exit ;; - *:IRIX*:*:*) - echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` - exit ;; - ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. - echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id - exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' - i*86:AIX:*:*) - echo i386-ibm-aix - exit ;; - ia64:AIX:*:*) - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} - exit ;; - *:AIX:2:3) - if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include - - main() - { - if (!__power_pc()) - exit(1); - puts("powerpc-ibm-aix3.2.5"); - exit(0); - } -EOF - if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` - then - echo "$SYSTEM_NAME" - else - echo rs6000-ibm-aix3.2.5 - fi - elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit ;; - *:AIX:*:[456]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` - if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit ;; - ibmrt:4.4BSD:*|romp-ibm:BSD:*) - echo romp-ibm-bsd4.4 - exit ;; - ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and - echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to - exit ;; # report: romp-ibm BSD 4.3 - *:BOSX:*:*) - echo rs6000-bull-bosx - exit ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit ;; - 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/[678][0-9][0-9]) - if [ -x /usr/bin/getconf ]; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; - '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac - fi - if [ "${HP_ARCH}" = "" ]; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - - #define _HPUX_SOURCE - #include - #include - - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); - - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - eval $set_cc_for_build - - # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating - # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler - # generating 64-bit code. GNU and HP use different nomenclature: - # - # $ CC_FOR_BUILD=cc ./config.guess - # => hppa2.0w-hp-hpux11.23 - # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess - # => hppa64-hp-hpux11.23 - - if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | - grep __LP64__ >/dev/null - then - HP_ARCH="hppa2.0w" - else - HP_ARCH="hppa64" - fi - fi - echo ${HP_ARCH}-hp-hpux${HPUX_REV} - exit ;; - ia64:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - echo ia64-hp-hpux${HPUX_REV} - exit ;; - 3050*:HI-UX:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include - int - main () - { - long cpu = sysconf (_SC_CPU_VERSION); - /* The order matters, because CPU_IS_HP_MC68K erroneously returns - true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - echo unknown-hitachi-hiuxwe2 - exit ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - *:UNICOS/mp:*:*) - echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:FreeBSD:*:*) - case ${UNAME_MACHINE} in - pc98) - echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - amd64) - echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - *) - echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - esac - exit ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit ;; - *:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit ;; - i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 - exit ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit ;; - *:Interix*:[3456]*) - case ${UNAME_MACHINE} in - x86) - echo i586-pc-interix${UNAME_RELEASE} - exit ;; - EM64T | authenticamd) - echo x86_64-unknown-interix${UNAME_RELEASE} - exit ;; - IA64) - echo ia64-unknown-interix${UNAME_RELEASE} - exit ;; - esac ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. 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Perhaps BFD should be changed, - I don't know.... */ - printf ("mips-sony-bsd\n"); exit (0); -#else -#include - printf ("m68k-sony-newsos%s\n", -#ifdef NEWSOS4 - "4" -#else - "" -#endif - ); exit (0); -#endif -#endif - -#if defined (__arm) && defined (__acorn) && defined (__unix) - printf ("arm-acorn-riscix\n"); exit (0); -#endif - -#if defined (hp300) && !defined (hpux) - printf ("m68k-hp-bsd\n"); exit (0); -#endif - -#if defined (NeXT) -#if !defined (__ARCHITECTURE__) -#define __ARCHITECTURE__ "m68k" -#endif - int version; - version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; - if (version < 4) - printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); - else - printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); - exit (0); -#endif - -#if defined (MULTIMAX) || defined (n16) -#if defined (UMAXV) - printf ("ns32k-encore-sysv\n"); exit (0); -#else -#if defined (CMU) - printf ("ns32k-encore-mach\n"); exit (0); -#else - printf ("ns32k-encore-bsd\n"); exit (0); -#endif -#endif -#endif - -#if defined (__386BSD__) - printf ("i386-pc-bsd\n"); exit (0); -#endif - -#if defined (sequent) -#if defined (i386) - printf ("i386-sequent-dynix\n"); exit (0); -#endif -#if defined (ns32000) - printf ("ns32k-sequent-dynix\n"); exit (0); -#endif -#endif - -#if defined (_SEQUENT_) - struct utsname un; - - uname(&un); - - if (strncmp(un.version, "V2", 2) == 0) { - printf ("i386-sequent-ptx2\n"); exit (0); - } - if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ - printf ("i386-sequent-ptx1\n"); exit (0); - } - printf ("i386-sequent-ptx\n"); exit (0); - -#endif - -#if defined (vax) -# if !defined (ultrix) -# include -# if defined (BSD) -# if BSD == 43 - printf ("vax-dec-bsd4.3\n"); exit (0); -# else -# if BSD == 199006 - printf ("vax-dec-bsd4.3reno\n"); exit (0); -# else - printf ("vax-dec-bsd\n"); exit (0); -# endif -# endif -# else - printf ("vax-dec-bsd\n"); exit (0); -# endif -# else - printf ("vax-dec-ultrix\n"); exit (0); -# endif -#endif - -#if defined (alliant) && defined (i860) - printf ("i860-alliant-bsd\n"); exit (0); -#endif - - exit (1); -} -EOF - -$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - -# Apollos put the system type in the environment. - -test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } - -# Convex versions that predate uname can use getsysinfo(1) - -if [ -x /usr/convex/getsysinfo ] -then - case `getsysinfo -f cpu_type` in - c1*) - echo c1-convex-bsd - exit ;; - c2*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - c34*) - echo c34-convex-bsd - exit ;; - c38*) - echo c38-convex-bsd - exit ;; - c4*) - echo c4-convex-bsd - exit ;; - esac -fi - -cat >&2 < in order to provide the needed -information to handle your system. - -config.guess timestamp = $timestamp - -uname -m = `(uname -m) 2>/dev/null || echo unknown` -uname -r = `(uname -r) 2>/dev/null || echo unknown` -uname -s = `(uname -s) 2>/dev/null || echo unknown` -uname -v = `(uname -v) 2>/dev/null || echo unknown` - -/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` -/bin/uname -X = `(/bin/uname -X) 2>/dev/null` - -hostinfo = `(hostinfo) 2>/dev/null` -/bin/universe = `(/bin/universe) 2>/dev/null` -/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` -/bin/arch = `(/bin/arch) 2>/dev/null` -/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` -/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` - -UNAME_MACHINE = ${UNAME_MACHINE} -UNAME_RELEASE = ${UNAME_RELEASE} -UNAME_SYSTEM = ${UNAME_SYSTEM} -UNAME_VERSION = ${UNAME_VERSION} -EOF - -exit 1 - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "timestamp='" -# time-stamp-format: "%:y-%02m-%02d" -# time-stamp-end: "'" -# End: diff --git a/tiff/config/config.sub b/tiff/config/config.sub deleted file mode 100755 index 6759825..0000000 --- a/tiff/config/config.sub +++ /dev/null @@ -1,1658 +0,0 @@ -#! /bin/sh -# Configuration validation subroutine script. -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -# 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 -# Free Software Foundation, Inc. - -timestamp='2008-01-16' - -# This file is (in principle) common to ALL GNU software. -# The presence of a machine in this file suggests that SOME GNU software -# can handle that machine. It does not imply ALL GNU software can. -# -# This file is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA -# 02110-1301, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - - -# Please send patches to . Submit a context -# diff and a properly formatted ChangeLog entry. -# -# Configuration subroutine to validate and canonicalize a configuration type. -# Supply the specified configuration type as an argument. -# If it is invalid, we print an error message on stderr and exit with code 1. -# Otherwise, we print the canonical config type on stdout and succeed. - -# This file is supposed to be the same for all GNU packages -# and recognize all the CPU types, system types and aliases -# that are meaningful with *any* GNU software. -# Each package is responsible for reporting which valid configurations -# it does not support. 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There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# GNU Libtool is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# As a special exception to the GNU General Public License, -# if you distribute this file as part of a program or library that -# is built using GNU Libtool, you may include this file under the -# same distribution terms that you use for the rest of that program. -# -# GNU Libtool is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - - -PROGRAM=libtool -PACKAGE=libtool -VERSION=2.4.5 -package_revision=2.4.5 - - -## ------ ## -## Usage. ## -## ------ ## - -# Run './libtool --help' for help with using this script from the -# command line. - - -## ------------------------------- ## -## User overridable command paths. ## -## ------------------------------- ## - -# After configure completes, it has a better idea of some of the -# shell tools we need than the defaults used by the functions shared -# with bootstrap, so set those here where they can still be over- -# ridden by the user, but otherwise take precedence. - -: ${AUTOCONF="autoconf"} -: ${AUTOMAKE="automake"} - - -## -------------------------- ## -## Source external libraries. ## -## -------------------------- ## - -# Much of our low-level functionality needs to be sourced from external -# libraries, which are installed to $pkgauxdir. - -# Set a version string for this script. -scriptversion=2014-01-03.01; # UTC - -# General shell script boiler plate, and helper functions. -# Written by Gary V. 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See the GNU -# General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. 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Append any others -# you will pass as the first argument to func_warning from your own -# code. -warning_categories= - -# By default, display warnings according to 'opt_warning_types'. Set -# 'warning_func' to ':' to elide all warnings, or func_fatal_error to -# treat the next displayed warning as a fatal error. -warning_func=func_warn_and_continue - -# Set to 'all' to display all warnings, 'none' to suppress all -# warnings, or a space delimited list of some subset of -# 'warning_categories' to display only the listed warnings. -opt_warning_types=all - - -## -------------------- ## -## Resource management. ## -## -------------------- ## - -# This section contains definitions for functions that each ensure a -# particular resource (a file, or a non-empty configuration variable for -# example) is available, and if appropriate to extract default values -# from pertinent package files. Call them using their associated -# 'require_*' variable to ensure that they are executed, at most, once. -# -# It's entirely deliberate that calling these functions can set -# variables that don't obey the namespace limitations obeyed by the rest -# of this file, in order that that they be as useful as possible to -# callers. - - -# require_term_colors -# ------------------- -# Allow display of bold text on terminals that support it. -require_term_colors=func_require_term_colors -func_require_term_colors () -{ - $debug_cmd - - test -t 1 && { - # COLORTERM and USE_ANSI_COLORS environment variables take - # precedence, because most terminfo databases neglect to describe - # whether color sequences are supported. - test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} - - if test 1 = "$USE_ANSI_COLORS"; then - # Standard ANSI escape sequences - tc_reset='' - tc_bold=''; tc_standout='' - tc_red=''; tc_green='' - tc_blue=''; tc_cyan='' - else - # Otherwise trust the terminfo database after all. - test -n "`tput sgr0 2>/dev/null`" && { - tc_reset=`tput sgr0` - test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` - tc_standout=$tc_bold - test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` - test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` - test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` - test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` - test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` - } - fi - } - - require_term_colors=: -} - - -## ----------------- ## -## Function library. ## -## ----------------- ## - -# This section contains a variety of useful functions to call in your -# scripts. Take note of the portable wrappers for features provided by -# some modern shells, which will fall back to slower equivalents on -# less featureful shells. - - -# func_append VAR VALUE -# --------------------- -# Append VALUE onto the existing contents of VAR. - - # We should try to minimise forks, especially on Windows where they are - # unreasonably slow, so skip the feature probes when bash or zsh are - # being used: - if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then - : ${_G_HAVE_ARITH_OP="yes"} - : ${_G_HAVE_XSI_OPS="yes"} - # The += operator was introduced in bash 3.1 - case $BASH_VERSION in - [12].* | 3.0 | 3.0*) ;; - *) - : ${_G_HAVE_PLUSEQ_OP="yes"} - ;; - esac - fi - - # _G_HAVE_PLUSEQ_OP - # Can be empty, in which case the shell is probed, "yes" if += is - # useable or anything else if it does not work. - test -z "$_G_HAVE_PLUSEQ_OP" \ - && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ - && _G_HAVE_PLUSEQ_OP=yes - -if test yes = "$_G_HAVE_PLUSEQ_OP" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_append () - { - $debug_cmd - - eval "$1+=\$2" - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_append () - { - $debug_cmd - - eval "$1=\$$1\$2" - } -fi - - -# func_append_quoted VAR VALUE -# ---------------------------- -# Quote VALUE and append to the end of shell variable VAR, separated -# by a space. -if test yes = "$_G_HAVE_PLUSEQ_OP"; then - eval 'func_append_quoted () - { - $debug_cmd - - func_quote_for_eval "$2" - eval "$1+=\\ \$func_quote_for_eval_result" - }' -else - func_append_quoted () - { - $debug_cmd - - func_quote_for_eval "$2" - eval "$1=\$$1\\ \$func_quote_for_eval_result" - } -fi - - -# func_append_uniq VAR VALUE -# -------------------------- -# Append unique VALUE onto the existing contents of VAR, assuming -# entries are delimited by the first character of VALUE. For example: -# -# func_append_uniq options " --another-option option-argument" -# -# will only append to $options if " --another-option option-argument " -# is not already present somewhere in $options already (note spaces at -# each end implied by leading space in second argument). -func_append_uniq () -{ - $debug_cmd - - eval _G_current_value='`$ECHO $'$1'`' - _G_delim=`expr "$2" : '\(.\)'` - - case $_G_delim$_G_current_value$_G_delim in - *"$2$_G_delim"*) ;; - *) func_append "$@" ;; - esac -} - - -# func_arith TERM... -# ------------------ -# Set func_arith_result to the result of evaluating TERMs. - test -z "$_G_HAVE_ARITH_OP" \ - && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ - && _G_HAVE_ARITH_OP=yes - -if test yes = "$_G_HAVE_ARITH_OP"; then - eval 'func_arith () - { - $debug_cmd - - func_arith_result=$(( $* )) - }' -else - func_arith () - { - $debug_cmd - - func_arith_result=`expr "$@"` - } -fi - - -# func_basename FILE -# ------------------ -# Set func_basename_result to FILE with everything up to and including -# the last / stripped. -if test yes = "$_G_HAVE_XSI_OPS"; then - # If this shell supports suffix pattern removal, then use it to avoid - # forking. Hide the definitions single quotes in case the shell chokes - # on unsupported syntax... - _b='func_basename_result=${1##*/}' - _d='case $1 in - */*) func_dirname_result=${1%/*}$2 ;; - * ) func_dirname_result=$3 ;; - esac' - -else - # ...otherwise fall back to using sed. - _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' - _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` - if test "X$func_dirname_result" = "X$1"; then - func_dirname_result=$3 - else - func_append func_dirname_result "$2" - fi' -fi - -eval 'func_basename () -{ - $debug_cmd - - '"$_b"' -}' - - -# func_dirname FILE APPEND NONDIR_REPLACEMENT -# ------------------------------------------- -# Compute the dirname of FILE. If nonempty, add APPEND to the result, -# otherwise set result to NONDIR_REPLACEMENT. -eval 'func_dirname () -{ - $debug_cmd - - '"$_d"' -}' - - -# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT -# -------------------------------------------------------- -# Perform func_basename and func_dirname in a single function -# call: -# dirname: Compute the dirname of FILE. If nonempty, -# add APPEND to the result, otherwise set result -# to NONDIR_REPLACEMENT. -# value returned in "$func_dirname_result" -# basename: Compute filename of FILE. -# value retuned in "$func_basename_result" -# For efficiency, we do not delegate to the functions above but instead -# duplicate the functionality here. -eval 'func_dirname_and_basename () -{ - $debug_cmd - - '"$_b"' - '"$_d"' -}' - - -# func_echo ARG... -# ---------------- -# Echo program name prefixed message. -func_echo () -{ - $debug_cmd - - _G_message=$* - - func_echo_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_IFS - $ECHO "$progname: $_G_line" - done - IFS=$func_echo_IFS -} - - -# func_echo_all ARG... -# -------------------- -# Invoke $ECHO with all args, space-separated. -func_echo_all () -{ - $ECHO "$*" -} - - -# func_echo_infix_1 INFIX ARG... -# ------------------------------ -# Echo program name, followed by INFIX on the first line, with any -# additional lines not showing INFIX. -func_echo_infix_1 () -{ - $debug_cmd - - $require_term_colors - - _G_infix=$1; shift - _G_indent=$_G_infix - _G_prefix="$progname: $_G_infix: " - _G_message=$* - - # Strip color escape sequences before counting printable length - for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" - do - test -n "$_G_tc" && { - _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` - _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` - } - done - _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes - - func_echo_infix_1_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_infix_1_IFS - $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 - _G_prefix=$_G_indent - done - IFS=$func_echo_infix_1_IFS -} - - -# func_error ARG... -# ----------------- -# Echo program name prefixed message to standard error. -func_error () -{ - $debug_cmd - - $require_term_colors - - func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 -} - - -# func_fatal_error ARG... -# ----------------------- -# Echo program name prefixed message to standard error, and exit. -func_fatal_error () -{ - $debug_cmd - - func_error "$*" - exit $EXIT_FAILURE -} - - -# func_grep EXPRESSION FILENAME -# ----------------------------- -# Check whether EXPRESSION matches any line of FILENAME, without output. -func_grep () -{ - $debug_cmd - - $GREP "$1" "$2" >/dev/null 2>&1 -} - - -# func_len STRING -# --------------- -# Set func_len_result to the length of STRING. 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Use a colon delimited - # list incase some portion of path contains whitespace. - _G_dir_list=$_G_directory_path:$_G_dir_list - - # If the last portion added has no slash in it, the list is done - case $_G_directory_path in */*) ;; *) break ;; esac - - # ...otherwise throw away the child directory and loop - _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` - done - _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` - - func_mkdir_p_IFS=$IFS; IFS=: - for _G_dir in $_G_dir_list; do - IFS=$func_mkdir_p_IFS - # mkdir can fail with a 'File exist' error if two processes - # try to create one of the directories concurrently. Don't - # stop in that case! - $MKDIR "$_G_dir" 2>/dev/null || : - done - IFS=$func_mkdir_p_IFS - - # Bail out if we (or some other process) failed to create a directory. - test -d "$_G_directory_path" || \ - func_fatal_error "Failed to create '$1'" - fi -} - - -# func_mktempdir [BASENAME] -# ------------------------- -# Make a temporary directory that won't clash with other running -# libtool processes, and avoids race conditions if possible. If -# given, BASENAME is the basename for that directory. -func_mktempdir () -{ - $debug_cmd - - _G_template=${TMPDIR-/tmp}/${1-$progname} - - if test : = "$opt_dry_run"; then - # Return a directory name, but don't create it in dry-run mode - _G_tmpdir=$_G_template-$$ - else - - # If mktemp works, use that first and foremost - _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` - - if test ! -d "$_G_tmpdir"; then - # Failing that, at least try and use $RANDOM to avoid a race - _G_tmpdir=$_G_template-${RANDOM-0}$$ - - func_mktempdir_umask=`umask` - umask 0077 - $MKDIR "$_G_tmpdir" - umask $func_mktempdir_umask - fi - - # If we're not in dry-run mode, bomb out on failure - test -d "$_G_tmpdir" || \ - func_fatal_error "cannot create temporary directory '$_G_tmpdir'" - fi - - $ECHO "$_G_tmpdir" -} - - -# func_normal_abspath PATH -# ------------------------ -# Remove doubled-up and trailing slashes, "." path components, -# and cancel out any ".." path components in PATH after making -# it an absolute path. -func_normal_abspath () -{ - $debug_cmd - - # These SED scripts presuppose an absolute path with a trailing slash. - _G_pathcar='s|^/\([^/]*\).*$|\1|' - _G_pathcdr='s|^/[^/]*||' - _G_removedotparts=':dotsl - s|/\./|/|g - t dotsl - s|/\.$|/|' - _G_collapseslashes='s|/\{1,\}|/|g' - _G_finalslash='s|/*$|/|' - - # Start from root dir and reassemble the path. - func_normal_abspath_result= - func_normal_abspath_tpath=$1 - func_normal_abspath_altnamespace= - case $func_normal_abspath_tpath in - "") - # Empty path, that just means $cwd. - func_stripname '' '/' "`pwd`" - func_normal_abspath_result=$func_stripname_result - return - ;; - # The next three entries are used to spot a run of precisely - # two leading slashes without using negated character classes; - # we take advantage of case's first-match behaviour. - ///*) - # Unusual form of absolute path, do nothing. - ;; - //*) - # Not necessarily an ordinary path; POSIX reserves leading '//' - # and for example Cygwin uses it to access remote file shares - # over CIFS/SMB, so we conserve a leading double slash if found. - func_normal_abspath_altnamespace=/ - ;; - /*) - # Absolute path, do nothing. - ;; - *) - # Relative path, prepend $cwd. - func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath - ;; - esac - - # Cancel out all the simple stuff to save iterations. We also want - # the path to end with a slash for ease of parsing, so make sure - # there is one (and only one) here. - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` - while :; do - # Processed it all yet? - if test / = "$func_normal_abspath_tpath"; then - # If we ascended to the root using ".." the result may be empty now. - if test -z "$func_normal_abspath_result"; then - func_normal_abspath_result=/ - fi - break - fi - func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcar"` - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcdr"` - # Figure out what to do with it - case $func_normal_abspath_tcomponent in - "") - # Trailing empty path component, ignore it. - ;; - ..) - # Parent dir; strip last assembled component from result. - func_dirname "$func_normal_abspath_result" - func_normal_abspath_result=$func_dirname_result - ;; - *) - # Actual path component, append it. - func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" - ;; - esac - done - # Restore leading double-slash if one was found on entry. - func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result -} - - -# func_notquiet ARG... -# -------------------- -# Echo program name prefixed message only when not in quiet mode. -func_notquiet () -{ - $debug_cmd - - $opt_quiet || func_echo ${1+"$@"} - - # A bug in bash halts the script if the last line of a function - # fails when set -e is in force, so we need another command to - # work around that: - : -} - - -# func_relative_path SRCDIR DSTDIR -# -------------------------------- -# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. -func_relative_path () -{ - $debug_cmd - - func_relative_path_result= - func_normal_abspath "$1" - func_relative_path_tlibdir=$func_normal_abspath_result - func_normal_abspath "$2" - func_relative_path_tbindir=$func_normal_abspath_result - - # Ascend the tree starting from libdir - while :; do - # check if we have found a prefix of bindir - case $func_relative_path_tbindir in - $func_relative_path_tlibdir) - # found an exact match - func_relative_path_tcancelled= - break - ;; - $func_relative_path_tlibdir*) - # found a matching prefix - func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" - func_relative_path_tcancelled=$func_stripname_result - if test -z "$func_relative_path_result"; then - func_relative_path_result=. - fi - break - ;; - *) - func_dirname $func_relative_path_tlibdir - func_relative_path_tlibdir=$func_dirname_result - if test -z "$func_relative_path_tlibdir"; then - # Have to descend all the way to the root! - func_relative_path_result=../$func_relative_path_result - func_relative_path_tcancelled=$func_relative_path_tbindir - break - fi - func_relative_path_result=../$func_relative_path_result - ;; - esac - done - - # Now calculate path; take care to avoid doubling-up slashes. - func_stripname '' '/' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - func_stripname '/' '/' "$func_relative_path_tcancelled" - if test -n "$func_stripname_result"; then - func_append func_relative_path_result "/$func_stripname_result" - fi - - # Normalisation. If bindir is libdir, return '.' else relative path. - if test -n "$func_relative_path_result"; then - func_stripname './' '' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - fi - - test -n "$func_relative_path_result" || func_relative_path_result=. - - : -} - - -# func_quote_for_eval ARG... -# -------------------------- -# Aesthetically quote ARGs to be evaled later. -# This function returns two values: -# i) func_quote_for_eval_result -# double-quoted, suitable for a subsequent eval -# ii) func_quote_for_eval_unquoted_result -# has all characters that are still active within double -# quotes backslashified. -func_quote_for_eval () -{ - $debug_cmd - - func_quote_for_eval_unquoted_result= - func_quote_for_eval_result= - while test 0 -lt $#; do - case $1 in - *[\\\`\"\$]*) - _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; - *) - _G_unquoted_arg=$1 ;; - esac - if test -n "$func_quote_for_eval_unquoted_result"; then - func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" - else - func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" - fi - - case $_G_unquoted_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting, command substitution and variable expansion - # for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_quoted_arg=\"$_G_unquoted_arg\" - ;; - *) - _G_quoted_arg=$_G_unquoted_arg - ;; - esac - - if test -n "$func_quote_for_eval_result"; then - func_append func_quote_for_eval_result " $_G_quoted_arg" - else - func_append func_quote_for_eval_result "$_G_quoted_arg" - fi - shift - done -} - - -# func_quote_for_expand ARG -# ------------------------- -# Aesthetically quote ARG to be evaled later; same as above, -# but do not quote variable references. -func_quote_for_expand () -{ - $debug_cmd - - case $1 in - *[\\\`\"]*) - _G_arg=`$ECHO "$1" | $SED \ - -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; - *) - _G_arg=$1 ;; - esac - - case $_G_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting and command substitution for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_arg=\"$_G_arg\" - ;; - esac - - func_quote_for_expand_result=$_G_arg -} - - -# func_stripname PREFIX SUFFIX NAME -# --------------------------------- -# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. -# PREFIX and SUFFIX must not contain globbing or regex special -# characters, hashes, percent signs, but SUFFIX may contain a leading -# dot (in which case that matches only a dot). -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_stripname () - { - $debug_cmd - - # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are - # positional parameters, so assign one to ordinary variable first. - func_stripname_result=$3 - func_stripname_result=${func_stripname_result#"$1"} - func_stripname_result=${func_stripname_result%"$2"} - }' -else - func_stripname () - { - $debug_cmd - - case $2 in - .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; - *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; - esac - } -fi - - -# func_show_eval CMD [FAIL_EXP] -# ----------------------------- -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. -func_show_eval () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - func_quote_for_expand "$_G_cmd" - eval "func_notquiet $func_quote_for_expand_result" - - $opt_dry_run || { - eval "$_G_cmd" - _G_status=$? - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_show_eval_locale CMD [FAIL_EXP] -# ------------------------------------ -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. Use the saved locale for evaluation. -func_show_eval_locale () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - $opt_quiet || { - func_quote_for_expand "$_G_cmd" - eval "func_echo $func_quote_for_expand_result" - } - - $opt_dry_run || { - eval "$_G_user_locale - $_G_cmd" - _G_status=$? - eval "$_G_safe_locale" - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_tr_sh -# ---------- -# Turn $1 into a string suitable for a shell variable name. -# Result is stored in $func_tr_sh_result. All characters -# not in the set a-zA-Z0-9_ are replaced with '_'. Further, -# if $1 begins with a digit, a '_' is prepended as well. -func_tr_sh () -{ - $debug_cmd - - case $1 in - [0-9]* | *[!a-zA-Z0-9_]*) - func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` - ;; - * ) - func_tr_sh_result=$1 - ;; - esac -} - - -# func_verbose ARG... -# ------------------- -# Echo program name prefixed message in verbose mode only. -func_verbose () -{ - $debug_cmd - - $opt_verbose && func_echo "$*" - - : -} - - -# func_warn_and_continue ARG... -# ----------------------------- -# Echo program name prefixed warning message to standard error. -func_warn_and_continue () -{ - $debug_cmd - - $require_term_colors - - func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 -} - - -# func_warning CATEGORY ARG... -# ---------------------------- -# Echo program name prefixed warning message to standard error. Warning -# messages can be filtered according to CATEGORY, where this function -# elides messages where CATEGORY is not listed in the global variable -# 'opt_warning_types'. -func_warning () -{ - $debug_cmd - - # CATEGORY must be in the warning_categories list! - case " $warning_categories " in - *" $1 "*) ;; - *) func_internal_error "invalid warning category '$1'" ;; - esac - - _G_category=$1 - shift - - case " $opt_warning_types " in - *" $_G_category "*) $warning_func ${1+"$@"} ;; - esac -} - - -# func_sort_ver VER1 VER2 -# ----------------------- -# 'sort -V' is not generally available. -# Note this deviates from the version comparison in automake -# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a -# but this should suffice as we won't be specifying old -# version formats or redundant trailing .0 in bootstrap.conf. -# If we did want full compatibility then we should probably -# use m4_version_compare from autoconf. -func_sort_ver () -{ - $debug_cmd - - printf '%s\n%s\n' "$1" "$2" \ - | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n -} - -# func_lt_ver PREV CURR -# --------------------- -# Return true if PREV and CURR are in the correct order according to -# func_sort_ver, otherwise false. Use it like this: -# -# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." -func_lt_ver () -{ - $debug_cmd - - test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: -#! /bin/sh - -# Set a version string for this script. -scriptversion=2014-01-07.03; # UTC - -# A portable, pluggable option parser for Bourne shell. -# Written by Gary V. Vaughan, 2010 - -# Copyright (C) 2010-2015 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# Please report bugs or propose patches to gary@gnu.org. - - -## ------ ## -## Usage. ## -## ------ ## - -# This file is a library for parsing options in your shell scripts along -# with assorted other useful supporting features that you can make use -# of too. -# -# For the simplest scripts you might need only: -# -# #!/bin/sh -# . relative/path/to/funclib.sh -# . relative/path/to/options-parser -# scriptversion=1.0 -# func_options ${1+"$@"} -# eval set dummy "$func_options_result"; shift -# ...rest of your script... -# -# In order for the '--version' option to work, you will need to have a -# suitably formatted comment like the one at the top of this file -# starting with '# Written by ' and ending with '# warranty; '. -# -# For '-h' and '--help' to work, you will also need a one line -# description of your script's purpose in a comment directly above the -# '# Written by ' line, like the one at the top of this file. -# -# The default options also support '--debug', which will turn on shell -# execution tracing (see the comment above debug_cmd below for another -# use), and '--verbose' and the func_verbose function to allow your script -# to display verbose messages only when your user has specified -# '--verbose'. -# -# After sourcing this file, you can plug processing for additional -# options by amending the variables from the 'Configuration' section -# below, and following the instructions in the 'Option parsing' -# section further down. - -## -------------- ## -## Configuration. ## -## -------------- ## - -# You should override these variables in your script after sourcing this -# file so that they reflect the customisations you have added to the -# option parser. - -# The usage line for option parsing errors and the start of '-h' and -# '--help' output messages. You can embed shell variables for delayed -# expansion at the time the message is displayed, but you will need to -# quote other shell meta-characters carefully to prevent them being -# expanded when the contents are evaled. -usage='$progpath [OPTION]...' - -# Short help message in response to '-h' and '--help'. Add to this or -# override it after sourcing this library to reflect the full set of -# options your script accepts. -usage_message="\ - --debug enable verbose shell tracing - -W, --warnings=CATEGORY - report the warnings falling in CATEGORY [all] - -v, --verbose verbosely report processing - --version print version information and exit - -h, --help print short or long help message and exit -" - -# Additional text appended to 'usage_message' in response to '--help'. -long_help_message=" -Warning categories include: - 'all' show all warnings - 'none' turn off all the warnings - 'error' warnings are treated as fatal errors" - -# Help message printed before fatal option parsing errors. -fatal_help="Try '\$progname --help' for more information." - - - -## ------------------------- ## -## Hook function management. ## -## ------------------------- ## - -# This section contains functions for adding, removing, and running hooks -# to the main code. A hook is just a named list of of function, that can -# be run in order later on. - -# func_hookable FUNC_NAME -# ----------------------- -# Declare that FUNC_NAME will run hooks added with -# 'func_add_hook FUNC_NAME ...'. -func_hookable () -{ - $debug_cmd - - func_append hookable_fns " $1" -} - - -# func_add_hook FUNC_NAME HOOK_FUNC -# --------------------------------- -# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must -# first have been declared "hookable" by a call to 'func_hookable'. -func_add_hook () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not accept hook functions." ;; - esac - - eval func_append ${1}_hooks '" $2"' -} - - -# func_remove_hook FUNC_NAME HOOK_FUNC -# ------------------------------------ -# Remove HOOK_FUNC from the list of functions called by FUNC_NAME. -func_remove_hook () -{ - $debug_cmd - - eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' -} - - -# func_run_hooks FUNC_NAME [ARG]... -# --------------------------------- -# Run all hook functions registered to FUNC_NAME. -# It is assumed that the list of hook functions contains nothing more -# than a whitespace-delimited list of legal shell function names, and -# no effort is wasted trying to catch shell meta-characters or preserve -# whitespace. -func_run_hooks () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not support hook funcions.n" ;; - esac - - eval _G_hook_fns=\$$1_hooks; shift - - for _G_hook in $_G_hook_fns; do - eval $_G_hook '"$@"' - - # store returned options list back into positional - # parameters for next 'cmd' execution. - eval _G_hook_result=\$${_G_hook}_result - eval set dummy "$_G_hook_result"; shift - done - - func_quote_for_eval ${1+"$@"} - func_run_hooks_result=$func_quote_for_eval_result -} - - - -## --------------- ## -## Option parsing. ## -## --------------- ## - -# In order to add your own option parsing hooks, you must accept the -# full positional parameter list in your hook function, remove any -# options that you action, and then pass back the remaining unprocessed -# options in '_result', escaped suitably for -# 'eval'. Like this: -# -# my_options_prep () -# { -# $debug_cmd -# -# # Extend the existing usage message. -# usage_message=$usage_message' -# -s, --silent don'\''t print informational messages -# ' -# -# func_quote_for_eval ${1+"$@"} -# my_options_prep_result=$func_quote_for_eval_result -# } -# func_add_hook func_options_prep my_options_prep -# -# -# my_silent_option () -# { -# $debug_cmd -# -# # Note that for efficiency, we parse as many options as we can -# # recognise in a loop before passing the remainder back to the -# # caller on the first unrecognised argument we encounter. -# while test $# -gt 0; do -# opt=$1; shift -# case $opt in -# --silent|-s) opt_silent=: ;; -# # Separate non-argument short options: -# -s*) func_split_short_opt "$_G_opt" -# set dummy "$func_split_short_opt_name" \ -# "-$func_split_short_opt_arg" ${1+"$@"} -# shift -# ;; -# *) set dummy "$_G_opt" "$*"; shift; break ;; -# esac -# done -# -# func_quote_for_eval ${1+"$@"} -# my_silent_option_result=$func_quote_for_eval_result -# } -# func_add_hook func_parse_options my_silent_option -# -# -# my_option_validation () -# { -# $debug_cmd -# -# $opt_silent && $opt_verbose && func_fatal_help "\ -# '--silent' and '--verbose' options are mutually exclusive." -# -# func_quote_for_eval ${1+"$@"} -# my_option_validation_result=$func_quote_for_eval_result -# } -# func_add_hook func_validate_options my_option_validation -# -# You'll alse need to manually amend $usage_message to reflect the extra -# options you parse. It's preferable to append if you can, so that -# multiple option parsing hooks can be added safely. - - -# func_options [ARG]... -# --------------------- -# All the functions called inside func_options are hookable. See the -# individual implementations for details. -func_hookable func_options -func_options () -{ - $debug_cmd - - func_options_prep ${1+"$@"} - eval func_parse_options \ - ${func_options_prep_result+"$func_options_prep_result"} - eval func_validate_options \ - ${func_parse_options_result+"$func_parse_options_result"} - - eval func_run_hooks func_options \ - ${func_validate_options_result+"$func_validate_options_result"} - - # save modified positional parameters for caller - func_options_result=$func_run_hooks_result -} - - -# func_options_prep [ARG]... -# -------------------------- -# All initialisations required before starting the option parse loop. -# Note that when calling hook functions, we pass through the list of -# positional parameters. If a hook function modifies that list, and -# needs to propogate that back to rest of this script, then the complete -# modified list must be put in 'func_run_hooks_result' before -# returning. -func_hookable func_options_prep -func_options_prep () -{ - $debug_cmd - - # Option defaults: - opt_verbose=false - opt_warning_types= - - func_run_hooks func_options_prep ${1+"$@"} - - # save modified positional parameters for caller - func_options_prep_result=$func_run_hooks_result -} - - -# func_parse_options [ARG]... -# --------------------------- -# The main option parsing loop. -func_hookable func_parse_options -func_parse_options () -{ - $debug_cmd - - func_parse_options_result= - - # this just eases exit handling - while test $# -gt 0; do - # Defer to hook functions for initial option parsing, so they - # get priority in the event of reusing an option name. - func_run_hooks func_parse_options ${1+"$@"} - - # Adjust func_parse_options positional parameters to match - eval set dummy "$func_run_hooks_result"; shift - - # Break out of the loop if we already parsed every option. - test $# -gt 0 || break - - _G_opt=$1 - shift - case $_G_opt in - --debug|-x) debug_cmd='set -x' - func_echo "enabling shell trace mode" - $debug_cmd - ;; - - --no-warnings|--no-warning|--no-warn) - set dummy --warnings none ${1+"$@"} - shift - ;; - - --warnings|--warning|-W) - test $# = 0 && func_missing_arg $_G_opt && break - case " $warning_categories $1" in - *" $1 "*) - # trailing space prevents matching last $1 above - func_append_uniq opt_warning_types " $1" - ;; - *all) - opt_warning_types=$warning_categories - ;; - *none) - opt_warning_types=none - warning_func=: - ;; - *error) - opt_warning_types=$warning_categories - warning_func=func_fatal_error - ;; - *) - func_fatal_error \ - "unsupported warning category: '$1'" - ;; - esac - shift - ;; - - --verbose|-v) opt_verbose=: ;; - --version) func_version ;; - -\?|-h) func_usage ;; - --help) func_help ;; - - # Separate optargs to long options (plugins may need this): - --*=*) func_split_equals "$_G_opt" - set dummy "$func_split_equals_lhs" \ - "$func_split_equals_rhs" ${1+"$@"} - shift - ;; - - # Separate optargs to short options: - -W*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - # Separate non-argument short options: - -\?*|-h*|-v*|-x*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "-$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - --) break ;; - -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - func_parse_options_result=$func_quote_for_eval_result -} - - -# func_validate_options [ARG]... -# ------------------------------ -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -func_hookable func_validate_options -func_validate_options () -{ - $debug_cmd - - # Display all warnings if -W was not given. - test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" - - func_run_hooks func_validate_options ${1+"$@"} - - # Bail if the options were screwed! - $exit_cmd $EXIT_FAILURE - - # save modified positional parameters for caller - func_validate_options_result=$func_run_hooks_result -} - - - -## ----------------- ## -## Helper functions. ## -## ----------------- ## - -# This section contains the helper functions used by the rest of the -# hookable option parser framework in ascii-betical order. - - -# func_fatal_help ARG... -# ---------------------- -# Echo program name prefixed message to standard error, followed by -# a help hint, and exit. -func_fatal_help () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - eval \$ECHO \""$fatal_help"\" - func_error ${1+"$@"} - exit $EXIT_FAILURE -} - - -# func_help -# --------- -# Echo long help message to standard output and exit. -func_help () -{ - $debug_cmd - - func_usage_message - $ECHO "$long_help_message" - exit 0 -} - - -# func_missing_arg ARGNAME -# ------------------------ -# Echo program name prefixed message to standard error and set global -# exit_cmd. -func_missing_arg () -{ - $debug_cmd - - func_error "Missing argument for '$1'." - exit_cmd=exit -} - - -# func_split_equals STRING -# ------------------------ -# Set func_split_equals_lhs and func_split_equals_rhs shell variables after -# splitting STRING at the '=' sign. -test -z "$_G_HAVE_XSI_OPS" \ - && (eval 'x=a/b/c; - test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ - && _G_HAVE_XSI_OPS=yes - -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=${1%%=*} - func_split_equals_rhs=${1#*=} - test "x$func_split_equals_lhs" = "x$1" \ - && func_split_equals_rhs= - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` - func_split_equals_rhs= - test "x$func_split_equals_lhs" = "x$1" \ - || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` - } -fi #func_split_equals - - -# func_split_short_opt SHORTOPT -# ----------------------------- -# Set func_split_short_opt_name and func_split_short_opt_arg shell -# variables after splitting SHORTOPT after the 2nd character. -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_arg=${1#??} - func_split_short_opt_name=${1%"$func_split_short_opt_arg"} - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` - func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` - } -fi #func_split_short_opt - - -# func_usage -# ---------- -# Echo short help message to standard output and exit. -func_usage () -{ - $debug_cmd - - func_usage_message - $ECHO "Run '$progname --help |${PAGER-more}' for full usage" - exit 0 -} - - -# func_usage_message -# ------------------ -# Echo short help message to standard output. -func_usage_message () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - echo - $SED -n 's|^# || - /^Written by/{ - x;p;x - } - h - /^Written by/q' < "$progpath" - echo - eval \$ECHO \""$usage_message"\" -} - - -# func_version -# ------------ -# Echo version message to standard output and exit. -func_version () -{ - $debug_cmd - - printf '%s\n' "$progname $scriptversion" - $SED -n ' - /(C)/!b go - :more - /\./!{ - N - s|\n# | | - b more - } - :go - /^# Written by /,/# warranty; / { - s|^# || - s|^# *$|| - s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| - p - } - /^# Written by / { - s|^# || - p - } - /^warranty; /q' < "$progpath" - - exit $? -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: - -# Set a version string. -scriptversion='(GNU libtool) 2.4.5' - - -# func_echo ARG... -# ---------------- -# Libtool also displays the current mode in messages, so override -# funclib.sh func_echo with this custom definition. -func_echo () -{ - $debug_cmd - - _G_message=$* - - func_echo_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_IFS - $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" - done - IFS=$func_echo_IFS -} - - -# func_warning ARG... -# ------------------- -# Libtool warnings are not categorized, so override funclib.sh -# func_warning with this simpler definition. -func_warning () -{ - $debug_cmd - - $warning_func ${1+"$@"} -} - - -## ---------------- ## -## Options parsing. ## -## ---------------- ## - -# Hook in the functions to make sure our own options are parsed during -# the option parsing loop. - -usage='$progpath [OPTION]... [MODE-ARG]...' - -# Short help message in response to '-h'. -usage_message="Options: - --config show all configuration variables - --debug enable verbose shell tracing - -n, --dry-run display commands without modifying any files - --features display basic configuration information and exit - --mode=MODE use operation mode MODE - --no-warnings equivalent to '-Wnone' - --preserve-dup-deps don't remove duplicate dependency libraries - --quiet, --silent don't print informational messages - --tag=TAG use configuration variables from tag TAG - -v, --verbose print more informational messages than default - --version print version information - -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] - -h, --help, --help-all print short, long, or detailed help message -" - -# Additional text appended to 'usage_message' in response to '--help'. -long_help_message=$long_help_message" - -MODE must be one of the following: - - clean remove files from the build directory - compile compile a source file into a libtool object - execute automatically set library path, then run a program - finish complete the installation of libtool libraries - install install libraries or executables - link create a library or an executable - uninstall remove libraries from an installed directory - -MODE-ARGS vary depending on the MODE. When passed as first option, -'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. -Try '$progname --help --mode=MODE' for a more detailed description of MODE. - -When reporting a bug, please describe a test case to reproduce it and -include the following information: - - host-triplet: $host - shell: $SHELL - compiler: $LTCC - compiler flags: $LTCFLAGS - linker: $LD (gnu? $with_gnu_ld) - version: $progname (GNU libtool) 2.4.5 - automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` - autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` - -Report bugs to . -GNU libtool home page: . -General help using GNU software: ." - - -# func_lo2o OBJECT-NAME -# --------------------- -# Transform OBJECT-NAME from a '.lo' suffix to the platform specific -# object suffix. - -lo2o=s/\\.lo\$/.$objext/ -o2lo=s/\\.$objext\$/.lo/ - -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_lo2o () - { - case $1 in - *.lo) func_lo2o_result=${1%.lo}.$objext ;; - * ) func_lo2o_result=$1 ;; - esac - }' - - # func_xform LIBOBJ-OR-SOURCE - # --------------------------- - # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) - # suffix to a '.lo' libtool-object suffix. - eval 'func_xform () - { - func_xform_result=${1%.*}.lo - }' -else - # ...otherwise fall back to using sed. - func_lo2o () - { - func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` - } - - func_xform () - { - func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` - } -fi - - -# func_fatal_configuration ARG... -# ------------------------------- -# Echo program name prefixed message to standard error, followed by -# a configuration failure hint, and exit. -func_fatal_configuration () -{ - func__fatal_error ${1+"$@"} \ - "See the $PACKAGE documentation for more information." \ - "Fatal configuration error." -} - - -# func_config -# ----------- -# Display the configuration for all the tags in this script. -func_config () -{ - re_begincf='^# ### BEGIN LIBTOOL' - re_endcf='^# ### END LIBTOOL' - - # Default configuration. - $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" - - # Now print the configurations for the tags. - for tagname in $taglist; do - $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" - done - - exit $? -} - - -# func_features -# ------------- -# Display the features supported by this script. -func_features () -{ - echo "host: $host" - if test yes = "$build_libtool_libs"; then - echo "enable shared libraries" - else - echo "disable shared libraries" - fi - if test yes = "$build_old_libs"; then - echo "enable static libraries" - else - echo "disable static libraries" - fi - - exit $? -} - - -# func_enable_tag TAGNAME -# ----------------------- -# Verify that TAGNAME is valid, and either flag an error and exit, or -# enable the TAGNAME tag. We also add TAGNAME to the global $taglist -# variable here. -func_enable_tag () -{ - # Global variable: - tagname=$1 - - re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" - re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" - sed_extractcf=/$re_begincf/,/$re_endcf/p - - # Validate tagname. - case $tagname in - *[!-_A-Za-z0-9,/]*) - func_fatal_error "invalid tag name: $tagname" - ;; - esac - - # Don't test for the "default" C tag, as we know it's - # there but not specially marked. - case $tagname in - CC) ;; - *) - if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then - taglist="$taglist $tagname" - - # Evaluate the configuration. Be careful to quote the path - # and the sed script, to avoid splitting on whitespace, but - # also don't use non-portable quotes within backquotes within - # quotes we have to do it in 2 steps: - extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` - eval "$extractedcf" - else - func_error "ignoring unknown tag $tagname" - fi - ;; - esac -} - - -# func_check_version_match -# ------------------------ -# Ensure that we are using m4 macros, and libtool script from the same -# release of libtool. -func_check_version_match () -{ - if test "$package_revision" != "$macro_revision"; then - if test "$VERSION" != "$macro_version"; then - if test -z "$macro_version"; then - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from an older release. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - fi - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, -$progname: but the definition of this LT_INIT comes from revision $macro_revision. -$progname: You should recreate aclocal.m4 with macros from revision $package_revision -$progname: of $PACKAGE $VERSION and run autoconf again. -_LT_EOF - fi - - exit $EXIT_MISMATCH - fi -} - - -# libtool_options_prep [ARG]... -# ----------------------------- -# Preparation for options parsed by libtool. -libtool_options_prep () -{ - $debug_mode - - # Option defaults: - opt_config=false - opt_dlopen= - opt_dry_run=false - opt_help=false - opt_mode= - opt_preserve_dup_deps=false - opt_quiet=false - - nonopt= - preserve_args= - - # Shorthand for --mode=foo, only valid as the first argument - case $1 in - clean|clea|cle|cl) - shift; set dummy --mode clean ${1+"$@"}; shift - ;; - compile|compil|compi|comp|com|co|c) - shift; set dummy --mode compile ${1+"$@"}; shift - ;; - execute|execut|execu|exec|exe|ex|e) - shift; set dummy --mode execute ${1+"$@"}; shift - ;; - finish|finis|fini|fin|fi|f) - shift; set dummy --mode finish ${1+"$@"}; shift - ;; - install|instal|insta|inst|ins|in|i) - shift; set dummy --mode install ${1+"$@"}; shift - ;; - link|lin|li|l) - shift; set dummy --mode link ${1+"$@"}; shift - ;; - uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) - shift; set dummy --mode uninstall ${1+"$@"}; shift - ;; - esac - - # Pass back the list of options. - func_quote_for_eval ${1+"$@"} - libtool_options_prep_result=$func_quote_for_eval_result -} -func_add_hook func_options_prep libtool_options_prep - - -# libtool_parse_options [ARG]... -# --------------------------------- -# Provide handling for libtool specific options. -libtool_parse_options () -{ - $debug_cmd - - # Perform our own loop to consume as many options as possible in - # each iteration. - while test $# -gt 0; do - _G_opt=$1 - shift - case $_G_opt in - --dry-run|--dryrun|-n) - opt_dry_run=: - ;; - - --config) func_config ;; - - --dlopen|-dlopen) - opt_dlopen="${opt_dlopen+$opt_dlopen -}$1" - shift - ;; - - --preserve-dup-deps) - opt_preserve_dup_deps=: ;; - - --features) func_features ;; - - --finish) set dummy --mode finish ${1+"$@"}; shift ;; - - --help) opt_help=: ;; - - --help-all) opt_help=': help-all' ;; - - --mode) test $# = 0 && func_missing_arg $_G_opt && break - opt_mode=$1 - case $1 in - # Valid mode arguments: - clean|compile|execute|finish|install|link|relink|uninstall) ;; - - # Catch anything else as an error - *) func_error "invalid argument for $_G_opt" - exit_cmd=exit - break - ;; - esac - shift - ;; - - --no-silent|--no-quiet) - opt_quiet=false - func_append preserve_args " $_G_opt" - ;; - - --no-warnings|--no-warning|--no-warn) - opt_warning=false - func_append preserve_args " $_G_opt" - ;; - - --no-verbose) - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --silent|--quiet) - opt_quiet=: - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --tag) test $# = 0 && func_missing_arg $_G_opt && break - opt_tag=$1 - func_append preserve_args " $_G_opt $1" - func_enable_tag "$1" - shift - ;; - - --verbose|-v) opt_quiet=false - opt_verbose=: - func_append preserve_args " $_G_opt" - ;; - - # An option not handled by this hook function: - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - libtool_parse_options_result=$func_quote_for_eval_result -} -func_add_hook func_parse_options libtool_parse_options - - - -# libtool_validate_options [ARG]... -# --------------------------------- -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -libtool_validate_options () -{ - # save first non-option argument - if test 0 -lt $#; then - nonopt=$1 - shift - fi - - # preserve --debug - test : = "$debug_cmd" || func_append preserve_args " --debug" - - case $host in - # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 - # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 - *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) - # don't eliminate duplications in $postdeps and $predeps - opt_duplicate_compiler_generated_deps=: - ;; - *) - opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps - ;; - esac - - $opt_help || { - # Sanity checks first: - func_check_version_match - - test yes != "$build_libtool_libs" \ - && test yes != "$build_old_libs" \ - && func_fatal_configuration "not configured to build any kind of library" - - # Darwin sucks - eval std_shrext=\"$shrext_cmds\" - - # Only execute mode is allowed to have -dlopen flags. - if test -n "$opt_dlopen" && test execute != "$opt_mode"; then - func_error "unrecognized option '-dlopen'" - $ECHO "$help" 1>&2 - exit $EXIT_FAILURE - fi - - # Change the help message to a mode-specific one. - generic_help=$help - help="Try '$progname --help --mode=$opt_mode' for more information." - } - - # Pass back the unparsed argument list - func_quote_for_eval ${1+"$@"} - libtool_validate_options_result=$func_quote_for_eval_result -} -func_add_hook func_validate_options libtool_validate_options - - -# Process options as early as possible so that --help and --version -# can return quickly. -func_options ${1+"$@"} -eval set dummy "$func_options_result"; shift - - - -## ----------- ## -## Main. ## -## ----------- ## - -magic='%%%MAGIC variable%%%' -magic_exe='%%%MAGIC EXE variable%%%' - -# Global variables. -extracted_archives= -extracted_serial=0 - -# If this variable is set in any of the actions, the command in it -# will be execed at the end. This prevents here-documents from being -# left over by shells. -exec_cmd= - - -# A function that is used when there is no print builtin or printf. -func_fallback_echo () -{ - eval 'cat <<_LTECHO_EOF -$1 -_LTECHO_EOF' -} - -# func_generated_by_libtool -# True iff stdin has been generated by Libtool. This function is only -# a basic sanity check; it will hardly flush out determined imposters. -func_generated_by_libtool_p () -{ - $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 -} - -# func_lalib_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_lalib_p () -{ - test -f "$1" && - $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_lalib_unsafe_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function implements the same check as func_lalib_p without -# resorting to external programs. To this end, it redirects stdin and -# closes it afterwards, without saving the original file descriptor. -# As a safety measure, use it only where a negative result would be -# fatal anyway. Works if 'file' does not exist. -func_lalib_unsafe_p () -{ - lalib_p=no - if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then - for lalib_p_l in 1 2 3 4 - do - read lalib_p_line - case $lalib_p_line in - \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; - esac - done - exec 0<&5 5<&- - fi - test yes = "$lalib_p" -} - -# func_ltwrapper_script_p file -# True iff FILE is a libtool wrapper script -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_script_p () -{ - test -f "$1" && - $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_ltwrapper_executable_p file -# True iff FILE is a libtool wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_executable_p () -{ - func_ltwrapper_exec_suffix= - case $1 in - *.exe) ;; - *) func_ltwrapper_exec_suffix=.exe ;; - esac - $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 -} - -# func_ltwrapper_scriptname file -# Assumes file is an ltwrapper_executable -# uses $file to determine the appropriate filename for a -# temporary ltwrapper_script. -func_ltwrapper_scriptname () -{ - func_dirname_and_basename "$1" "" "." - func_stripname '' '.exe' "$func_basename_result" - func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper -} - -# func_ltwrapper_p file -# True iff FILE is a libtool wrapper script or wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_p () -{ - func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" -} - - -# func_execute_cmds commands fail_cmd -# Execute tilde-delimited COMMANDS. -# If FAIL_CMD is given, eval that upon failure. -# FAIL_CMD may read-access the current command in variable CMD! -func_execute_cmds () -{ - $debug_cmd - - save_ifs=$IFS; IFS='~' - for cmd in $1; do - IFS=$sp$nl - eval cmd=\"$cmd\" - IFS=$save_ifs - func_show_eval "$cmd" "${2-:}" - done - IFS=$save_ifs -} - - -# func_source file -# Source FILE, adding directory component if necessary. -# Note that it is not necessary on cygwin/mingw to append a dot to -# FILE even if both FILE and FILE.exe exist: automatic-append-.exe -# behavior happens only for exec(3), not for open(2)! Also, sourcing -# 'FILE.' does not work on cygwin managed mounts. -func_source () -{ - $debug_cmd - - case $1 in - */* | *\\*) . "$1" ;; - *) . "./$1" ;; - esac -} - - -# func_resolve_sysroot PATH -# Replace a leading = in PATH with a sysroot. Store the result into -# func_resolve_sysroot_result -func_resolve_sysroot () -{ - func_resolve_sysroot_result=$1 - case $func_resolve_sysroot_result in - =*) - func_stripname '=' '' "$func_resolve_sysroot_result" - func_resolve_sysroot_result=$lt_sysroot$func_stripname_result - ;; - esac -} - -# func_replace_sysroot PATH -# If PATH begins with the sysroot, replace it with = and -# store the result into func_replace_sysroot_result. -func_replace_sysroot () -{ - case $lt_sysroot:$1 in - ?*:"$lt_sysroot"*) - func_stripname "$lt_sysroot" '' "$1" - func_replace_sysroot_result='='$func_stripname_result - ;; - *) - # Including no sysroot. - func_replace_sysroot_result=$1 - ;; - esac -} - -# func_infer_tag arg -# Infer tagged configuration to use if any are available and -# if one wasn't chosen via the "--tag" command line option. -# Only attempt this if the compiler in the base compile -# command doesn't match the default compiler. -# arg is usually of the form 'gcc ...' -func_infer_tag () -{ - $debug_cmd - - if test -n "$available_tags" && test -z "$tagname"; then - CC_quoted= - for arg in $CC; do - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case $@ in - # Blanks in the command may have been stripped by the calling shell, - # but not from the CC environment variable when configure was run. - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; - # Blanks at the start of $base_compile will cause this to fail - # if we don't check for them as well. - *) - for z in $available_tags; do - if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then - # Evaluate the configuration. - eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" - CC_quoted= - for arg in $CC; do - # Double-quote args containing other shell metacharacters. - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case "$@ " in - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) - # The compiler in the base compile command matches - # the one in the tagged configuration. - # Assume this is the tagged configuration we want. - tagname=$z - break - ;; - esac - fi - done - # If $tagname still isn't set, then no tagged configuration - # was found and let the user know that the "--tag" command - # line option must be used. - if test -z "$tagname"; then - func_echo "unable to infer tagged configuration" - func_fatal_error "specify a tag with '--tag'" -# else -# func_verbose "using $tagname tagged configuration" - fi - ;; - esac - fi -} - - - -# func_write_libtool_object output_name pic_name nonpic_name -# Create a libtool object file (analogous to a ".la" file), -# but don't create it if we're doing a dry run. -func_write_libtool_object () -{ - write_libobj=$1 - if test yes = "$build_libtool_libs"; then - write_lobj=\'$2\' - else - write_lobj=none - fi - - if test yes = "$build_old_libs"; then - write_oldobj=\'$3\' - else - write_oldobj=none - fi - - $opt_dry_run || { - cat >${write_libobj}T </dev/null` - if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then - func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | - $SED -e "$sed_naive_backslashify"` - else - func_convert_core_file_wine_to_w32_result= - fi - fi -} -# end: func_convert_core_file_wine_to_w32 - - -# func_convert_core_path_wine_to_w32 ARG -# Helper function used by path conversion functions when $build is *nix, and -# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly -# configured wine environment available, with the winepath program in $build's -# $PATH. Assumes ARG has no leading or trailing path separator characters. -# -# ARG is path to be converted from $build format to win32. -# Result is available in $func_convert_core_path_wine_to_w32_result. -# Unconvertible file (directory) names in ARG are skipped; if no directory names -# are convertible, then the result may be empty. -func_convert_core_path_wine_to_w32 () -{ - $debug_cmd - - # unfortunately, winepath doesn't convert paths, only file names - func_convert_core_path_wine_to_w32_result= - if test -n "$1"; then - oldIFS=$IFS - IFS=: - for func_convert_core_path_wine_to_w32_f in $1; do - IFS=$oldIFS - func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" - if test -n "$func_convert_core_file_wine_to_w32_result"; then - if test -z "$func_convert_core_path_wine_to_w32_result"; then - func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result - else - func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" - fi - fi - done - IFS=$oldIFS - fi -} -# end: func_convert_core_path_wine_to_w32 - - -# func_cygpath ARGS... -# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when -# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) -# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or -# (2), returns the Cygwin file name or path in func_cygpath_result (input -# file name or path is assumed to be in w32 format, as previously converted -# from $build's *nix or MSYS format). In case (3), returns the w32 file name -# or path in func_cygpath_result (input file name or path is assumed to be in -# Cygwin format). Returns an empty string on error. -# -# ARGS are passed to cygpath, with the last one being the file name or path to -# be converted. -# -# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH -# environment variable; do not put it in $PATH. -func_cygpath () -{ - $debug_cmd - - if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then - func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` - if test "$?" -ne 0; then - # on failure, ensure result is empty - func_cygpath_result= - fi - else - func_cygpath_result= - func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" - fi -} -#end: func_cygpath - - -# func_convert_core_msys_to_w32 ARG -# Convert file name or path ARG from MSYS format to w32 format. Return -# result in func_convert_core_msys_to_w32_result. -func_convert_core_msys_to_w32 () -{ - $debug_cmd - - # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | - $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` -} -#end: func_convert_core_msys_to_w32 - - -# func_convert_file_check ARG1 ARG2 -# Verify that ARG1 (a file name in $build format) was converted to $host -# format in ARG2. Otherwise, emit an error message, but continue (resetting -# func_to_host_file_result to ARG1). -func_convert_file_check () -{ - $debug_cmd - - if test -z "$2" && test -n "$1"; then - func_error "Could not determine host file name corresponding to" - func_error " '$1'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback: - func_to_host_file_result=$1 - fi -} -# end func_convert_file_check - - -# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH -# Verify that FROM_PATH (a path in $build format) was converted to $host -# format in TO_PATH. Otherwise, emit an error message, but continue, resetting -# func_to_host_file_result to a simplistic fallback value (see below). -func_convert_path_check () -{ - $debug_cmd - - if test -z "$4" && test -n "$3"; then - func_error "Could not determine the host path corresponding to" - func_error " '$3'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback. This is a deliberately simplistic "conversion" and - # should not be "improved". See libtool.info. - if test "x$1" != "x$2"; then - lt_replace_pathsep_chars="s|$1|$2|g" - func_to_host_path_result=`echo "$3" | - $SED -e "$lt_replace_pathsep_chars"` - else - func_to_host_path_result=$3 - fi - fi -} -# end func_convert_path_check - - -# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG -# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT -# and appending REPL if ORIG matches BACKPAT. -func_convert_path_front_back_pathsep () -{ - $debug_cmd - - case $4 in - $1 ) func_to_host_path_result=$3$func_to_host_path_result - ;; - esac - case $4 in - $2 ) func_append func_to_host_path_result "$3" - ;; - esac -} -# end func_convert_path_front_back_pathsep - - -################################################## -# $build to $host FILE NAME CONVERSION FUNCTIONS # -################################################## -# invoked via '$to_host_file_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# Result will be available in $func_to_host_file_result. - - -# func_to_host_file ARG -# Converts the file name ARG from $build format to $host format. Return result -# in func_to_host_file_result. -func_to_host_file () -{ - $debug_cmd - - $to_host_file_cmd "$1" -} -# end func_to_host_file - - -# func_to_tool_file ARG LAZY -# converts the file name ARG from $build format to toolchain format. Return -# result in func_to_tool_file_result. If the conversion in use is listed -# in (the comma separated) LAZY, no conversion takes place. -func_to_tool_file () -{ - $debug_cmd - - case ,$2, in - *,"$to_tool_file_cmd",*) - func_to_tool_file_result=$1 - ;; - *) - $to_tool_file_cmd "$1" - func_to_tool_file_result=$func_to_host_file_result - ;; - esac -} -# end func_to_tool_file - - -# func_convert_file_noop ARG -# Copy ARG to func_to_host_file_result. -func_convert_file_noop () -{ - func_to_host_file_result=$1 -} -# end func_convert_file_noop - - -# func_convert_file_msys_to_w32 ARG -# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_file_result. -func_convert_file_msys_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_to_host_file_result=$func_convert_core_msys_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_w32 - - -# func_convert_file_cygwin_to_w32 ARG -# Convert file name ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_file_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # because $build is cygwin, we call "the" cygpath in $PATH; no need to use - # LT_CYGPATH in this case. - func_to_host_file_result=`cygpath -m "$1"` - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_cygwin_to_w32 - - -# func_convert_file_nix_to_w32 ARG -# Convert file name ARG from *nix to w32 format. Requires a wine environment -# and a working winepath. Returns result in func_to_host_file_result. -func_convert_file_nix_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_file_wine_to_w32 "$1" - func_to_host_file_result=$func_convert_core_file_wine_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_w32 - - -# func_convert_file_msys_to_cygwin ARG -# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_file_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_cygpath -u "$func_convert_core_msys_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_cygwin - - -# func_convert_file_nix_to_cygwin ARG -# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed -# in a wine environment, working winepath, and LT_CYGPATH set. Returns result -# in func_to_host_file_result. -func_convert_file_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. - func_convert_core_file_wine_to_w32 "$1" - func_cygpath -u "$func_convert_core_file_wine_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_cygwin - - -############################################# -# $build to $host PATH CONVERSION FUNCTIONS # -############################################# -# invoked via '$to_host_path_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# The result will be available in $func_to_host_path_result. -# -# Path separators are also converted from $build format to $host format. If -# ARG begins or ends with a path separator character, it is preserved (but -# converted to $host format) on output. -# -# All path conversion functions are named using the following convention: -# file name conversion function : func_convert_file_X_to_Y () -# path conversion function : func_convert_path_X_to_Y () -# where, for any given $build/$host combination the 'X_to_Y' value is the -# same. If conversion functions are added for new $build/$host combinations, -# the two new functions must follow this pattern, or func_init_to_host_path_cmd -# will break. - - -# func_init_to_host_path_cmd -# Ensures that function "pointer" variable $to_host_path_cmd is set to the -# appropriate value, based on the value of $to_host_file_cmd. -to_host_path_cmd= -func_init_to_host_path_cmd () -{ - $debug_cmd - - if test -z "$to_host_path_cmd"; then - func_stripname 'func_convert_file_' '' "$to_host_file_cmd" - to_host_path_cmd=func_convert_path_$func_stripname_result - fi -} - - -# func_to_host_path ARG -# Converts the path ARG from $build format to $host format. Return result -# in func_to_host_path_result. -func_to_host_path () -{ - $debug_cmd - - func_init_to_host_path_cmd - $to_host_path_cmd "$1" -} -# end func_to_host_path - - -# func_convert_path_noop ARG -# Copy ARG to func_to_host_path_result. -func_convert_path_noop () -{ - func_to_host_path_result=$1 -} -# end func_convert_path_noop - - -# func_convert_path_msys_to_w32 ARG -# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_path_result. -func_convert_path_msys_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from ARG. MSYS - # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; - # and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_msys_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_msys_to_w32 - - -# func_convert_path_cygwin_to_w32 ARG -# Convert path ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_path_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_cygwin_to_w32 - - -# func_convert_path_nix_to_w32 ARG -# Convert path ARG from *nix to w32 format. Requires a wine environment and -# a working winepath. Returns result in func_to_host_file_result. -func_convert_path_nix_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_path_wine_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_nix_to_w32 - - -# func_convert_path_msys_to_cygwin ARG -# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_path_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_msys_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_msys_to_cygwin - - -# func_convert_path_nix_to_cygwin ARG -# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a -# a wine environment, working winepath, and LT_CYGPATH set. Returns result in -# func_to_host_file_result. -func_convert_path_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from - # ARG. msys behavior is inconsistent here, cygpath turns them - # into '.;' and ';.', and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_nix_to_cygwin - - -# func_dll_def_p FILE -# True iff FILE is a Windows DLL '.def' file. -# Keep in sync with _LT_DLL_DEF_P in libtool.m4 -func_dll_def_p () -{ - $debug_cmd - - func_dll_def_p_tmp=`$SED -n \ - -e 's/^[ ]*//' \ - -e '/^\(;.*\)*$/d' \ - -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ - -e q \ - "$1"` - test DEF = "$func_dll_def_p_tmp" -} - - -# func_mode_compile arg... -func_mode_compile () -{ - $debug_cmd - - # Get the compilation command and the source file. - base_compile= - srcfile=$nonopt # always keep a non-empty value in "srcfile" - suppress_opt=yes - suppress_output= - arg_mode=normal - libobj= - later= - pie_flag= - - for arg - do - case $arg_mode in - arg ) - # do not "continue". Instead, add this to base_compile - lastarg=$arg - arg_mode=normal - ;; - - target ) - libobj=$arg - arg_mode=normal - continue - ;; - - normal ) - # Accept any command-line options. - case $arg in - -o) - test -n "$libobj" && \ - func_fatal_error "you cannot specify '-o' more than once" - arg_mode=target - continue - ;; - - -pie | -fpie | -fPIE) - func_append pie_flag " $arg" - continue - ;; - - -shared | -static | -prefer-pic | -prefer-non-pic) - func_append later " $arg" - continue - ;; - - -no-suppress) - suppress_opt=no - continue - ;; - - -Xcompiler) - arg_mode=arg # the next one goes into the "base_compile" arg list - continue # The current "srcfile" will either be retained or - ;; # replaced later. I would guess that would be a bug. - - -Wc,*) - func_stripname '-Wc,' '' "$arg" - args=$func_stripname_result - lastarg= - save_ifs=$IFS; IFS=, - for arg in $args; do - IFS=$save_ifs - func_append_quoted lastarg "$arg" - done - IFS=$save_ifs - func_stripname ' ' '' "$lastarg" - lastarg=$func_stripname_result - - # Add the arguments to base_compile. - func_append base_compile " $lastarg" - continue - ;; - - *) - # Accept the current argument as the source file. - # The previous "srcfile" becomes the current argument. - # - lastarg=$srcfile - srcfile=$arg - ;; - esac # case $arg - ;; - esac # case $arg_mode - - # Aesthetically quote the previous argument. - func_append_quoted base_compile "$lastarg" - done # for arg - - case $arg_mode in - arg) - func_fatal_error "you must specify an argument for -Xcompile" - ;; - target) - func_fatal_error "you must specify a target with '-o'" - ;; - *) - # Get the name of the library object. - test -z "$libobj" && { - func_basename "$srcfile" - libobj=$func_basename_result - } - ;; - esac - - # Recognize several different file suffixes. - # If the user specifies -o file.o, it is replaced with file.lo - case $libobj in - *.[cCFSifmso] | \ - *.ada | *.adb | *.ads | *.asm | \ - *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ - *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) - func_xform "$libobj" - libobj=$func_xform_result - ;; - esac - - case $libobj in - *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; - *) - func_fatal_error "cannot determine name of library object from '$libobj'" - ;; - esac - - func_infer_tag $base_compile - - for arg in $later; do - case $arg in - -shared) - test yes = "$build_libtool_libs" \ - || func_fatal_configuration "cannot build a shared library" - build_old_libs=no - continue - ;; - - -static) - build_libtool_libs=no - build_old_libs=yes - continue - ;; - - -prefer-pic) - pic_mode=yes - continue - ;; - - -prefer-non-pic) - pic_mode=no - continue - ;; - esac - done - - func_quote_for_eval "$libobj" - test "X$libobj" != "X$func_quote_for_eval_result" \ - && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ - && func_warning "libobj name '$libobj' may not contain shell special characters." - func_dirname_and_basename "$obj" "/" "" - objname=$func_basename_result - xdir=$func_dirname_result - lobj=$xdir$objdir/$objname - - test -z "$base_compile" && \ - func_fatal_help "you must specify a compilation command" - - # Delete any leftover library objects. - if test yes = "$build_old_libs"; then - removelist="$obj $lobj $libobj ${libobj}T" - else - removelist="$lobj $libobj ${libobj}T" - fi - - # On Cygwin there's no "real" PIC flag so we must build both object types - case $host_os in - cygwin* | mingw* | pw32* | os2* | cegcc*) - pic_mode=default - ;; - esac - if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then - # non-PIC code in shared libraries is not supported - pic_mode=default - fi - - # Calculate the filename of the output object if compiler does - # not support -o with -c - if test no = "$compiler_c_o"; then - output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext - lockfile=$output_obj.lock - else - output_obj= - need_locks=no - lockfile= - fi - - # Lock this critical section if it is needed - # We use this script file to make the link, it avoids creating a new file - if test yes = "$need_locks"; then - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - elif test warn = "$need_locks"; then - if test -f "$lockfile"; then - $ECHO "\ -*** ERROR, $lockfile exists and contains: -`cat $lockfile 2>/dev/null` - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - func_append removelist " $output_obj" - $ECHO "$srcfile" > "$lockfile" - fi - - $opt_dry_run || $RM $removelist - func_append removelist " $lockfile" - trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 - - func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 - srcfile=$func_to_tool_file_result - func_quote_for_eval "$srcfile" - qsrcfile=$func_quote_for_eval_result - - # Only build a PIC object if we are building libtool libraries. - if test yes = "$build_libtool_libs"; then - # Without this assignment, base_compile gets emptied. - fbsd_hideous_sh_bug=$base_compile - - if test no != "$pic_mode"; then - command="$base_compile $qsrcfile $pic_flag" - else - # Don't build PIC code - command="$base_compile $qsrcfile" - fi - - func_mkdir_p "$xdir$objdir" - - if test -z "$output_obj"; then - # Place PIC objects in $objdir - func_append command " -o $lobj" - fi - - func_show_eval_locale "$command" \ - 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' - - if test warn = "$need_locks" && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - - # Just move the object if needed, then go on to compile the next one - if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then - func_show_eval '$MV "$output_obj" "$lobj"' \ - 'error=$?; $opt_dry_run || $RM $removelist; exit $error' - fi - - # Allow error messages only from the first compilation. - if test yes = "$suppress_opt"; then - suppress_output=' >/dev/null 2>&1' - fi - fi - - # Only build a position-dependent object if we build old libraries. - if test yes = "$build_old_libs"; then - if test yes != "$pic_mode"; then - # Don't build PIC code - command="$base_compile $qsrcfile$pie_flag" - else - command="$base_compile $qsrcfile $pic_flag" - fi - if test yes = "$compiler_c_o"; then - func_append command " -o $obj" - fi - - # Suppress compiler output if we already did a PIC compilation. - func_append command "$suppress_output" - func_show_eval_locale "$command" \ - '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' - - if test warn = "$need_locks" && - test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then - $ECHO "\ -*** ERROR, $lockfile contains: -`cat $lockfile 2>/dev/null` - -but it should contain: -$srcfile - -This indicates that another process is trying to use the same -temporary object file, and libtool could not work around it because -your compiler does not support '-c' and '-o' together. If you -repeat this compilation, it may succeed, by chance, but you had better -avoid parallel builds (make -j) in this platform, or get a better -compiler." - - $opt_dry_run || $RM $removelist - exit $EXIT_FAILURE - fi - - # Just move the object if needed - if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then - func_show_eval '$MV "$output_obj" "$obj"' \ - 'error=$?; $opt_dry_run || $RM $removelist; exit $error' - fi - fi - - $opt_dry_run || { - func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" - - # Unlock the critical section if it was locked - if test no != "$need_locks"; then - removelist=$lockfile - $RM "$lockfile" - fi - } - - exit $EXIT_SUCCESS -} - -$opt_help || { - test compile = "$opt_mode" && func_mode_compile ${1+"$@"} -} - -func_mode_help () -{ - # We need to display help for each of the modes. - case $opt_mode in - "") - # Generic help is extracted from the usage comments - # at the start of this file. - func_help - ;; - - clean) - $ECHO \ -"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... - -Remove files from the build directory. - -RM is the name of the program to use to delete files associated with each FILE -(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed -to RM. - -If FILE is a libtool library, object or program, all the files associated -with it are deleted. Otherwise, only FILE itself is deleted using RM." - ;; - - compile) - $ECHO \ -"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE - -Compile a source file into a libtool library object. - -This mode accepts the following additional options: - - -o OUTPUT-FILE set the output file name to OUTPUT-FILE - -no-suppress do not suppress compiler output for multiple passes - -prefer-pic try to build PIC objects only - -prefer-non-pic try to build non-PIC objects only - -shared do not build a '.o' file suitable for static linking - -static only build a '.o' file suitable for static linking - -Wc,FLAG pass FLAG directly to the compiler - -COMPILE-COMMAND is a command to be used in creating a 'standard' object file -from the given SOURCEFILE. - -The output file name is determined by removing the directory component from -SOURCEFILE, then substituting the C source code suffix '.c' with the -library object suffix, '.lo'." - ;; - - execute) - $ECHO \ -"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... - -Automatically set library path, then run a program. - -This mode accepts the following additional options: - - -dlopen FILE add the directory containing FILE to the library path - -This mode sets the library path environment variable according to '-dlopen' -flags. - -If any of the ARGS are libtool executable wrappers, then they are translated -into their corresponding uninstalled binary, and any of their required library -directories are added to the library path. - -Then, COMMAND is executed, with ARGS as arguments." - ;; - - finish) - $ECHO \ -"Usage: $progname [OPTION]... --mode=finish [LIBDIR]... - -Complete the installation of libtool libraries. - -Each LIBDIR is a directory that contains libtool libraries. - -The commands that this mode executes may require superuser privileges. 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then - libdir=LIBDIR - eval flag=\"$hardcode_libdir_flag_spec\" - - $ECHO " - use the '$flag' linker flag" - fi - if test -n "$admincmds"; then - $ECHO " - have your system administrator run these commands:$admincmds" - fi - if test -f /etc/ld.so.conf; then - echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" - fi - echo - - echo "See any operating system documentation about shared libraries for" - case $host in - solaris2.[6789]|solaris2.1[0-9]) - echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" - echo "pages." - ;; - *) - echo "more information, such as the ld(1) and ld.so(8) manual pages." - ;; - esac - echo "----------------------------------------------------------------------" - fi - exit $EXIT_SUCCESS -} - -test finish = "$opt_mode" && func_mode_finish ${1+"$@"} - - -# func_mode_install arg... -func_mode_install () -{ - $debug_cmd - - # There may be an optional sh(1) argument at the beginning of - # install_prog (especially on Windows NT). - if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || - # Allow the use of GNU shtool's install command. - case $nonopt in *shtool*) :;; 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then - case "$current_libdirs " in - *" $libdir "*) ;; - *) func_append current_libdirs " $libdir" ;; - esac - else - # Note the libdir as a future libdir. - case "$future_libdirs " in - *" $libdir "*) ;; - *) func_append future_libdirs " $libdir" ;; - esac - fi - - func_dirname "$file" "/" "" - dir=$func_dirname_result - func_append dir "$objdir" - - if test -n "$relink_command"; then - # Determine the prefix the user has applied to our future dir. - inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` - - # Don't allow the user to place us outside of our expected - # location b/c this prevents finding dependent libraries that - # are installed to the same prefix. - # At present, this check doesn't affect windows .dll's that - # are installed into $libdir/../bin (currently, that works fine) - # but it's something to keep an eye on. - test "$inst_prefix_dir" = "$destdir" && \ - func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" - - if test -n "$inst_prefix_dir"; then - # Stick the inst_prefix_dir data into the link command. - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` - else - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` - fi - - func_warning "relinking '$file'" - func_show_eval "$relink_command" \ - 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' - fi - - # See the names of the shared library. - set dummy $library_names; shift - if test -n "$1"; then - realname=$1 - shift - - srcname=$realname - test -n "$relink_command" && srcname=${realname}T - - # Install the shared library and build the symlinks. - func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ - 'exit $?' - tstripme=$stripme - case $host_os in - cygwin* | mingw* | pw32* | cegcc*) - case $realname in - *.dll.a) - tstripme= - ;; - esac - ;; - os2*) - case $realname in - *_dll.a) - tstripme= - ;; - esac - ;; - esac - if test -n "$tstripme" && test -n "$striplib"; then - func_show_eval "$striplib $destdir/$realname" 'exit $?' - fi - - if test "$#" -gt 0; then - # Delete the old symlinks, and create new ones. - # Try 'ln -sf' first, because the 'ln' binary might depend on - # the symlink we replace! 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- *.$objext) - staticdest=$destfile - destfile= - ;; - *) - func_fatal_help "cannot copy a libtool object to '$destfile'" - ;; - esac - - # Install the libtool object if requested. - test -n "$destfile" && \ - func_show_eval "$install_prog $file $destfile" 'exit $?' - - # Install the old object if enabled. - if test yes = "$build_old_libs"; then - # Deduce the name of the old-style object file. - func_lo2o "$file" - staticobj=$func_lo2o_result - func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' - fi - exit $EXIT_SUCCESS - ;; - - *) - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile=$destdir/$destname - else - func_basename "$file" - destfile=$func_basename_result - destfile=$destdir/$destfile - fi - - # If the file is missing, and there is a .exe on the end, strip it - # because it is most likely a libtool script we actually want to - # install - stripped_ext= - case $file in - *.exe) - if test ! -f "$file"; then - func_stripname '' '.exe' "$file" - file=$func_stripname_result - stripped_ext=.exe - fi - ;; - esac - - # Do a test to see if this is really a libtool program. - case $host in - *cygwin* | *mingw*) - if func_ltwrapper_executable_p "$file"; then - func_ltwrapper_scriptname "$file" - wrapper=$func_ltwrapper_scriptname_result - else - func_stripname '' '.exe' "$file" - wrapper=$func_stripname_result - fi - ;; - *) - wrapper=$file - ;; - esac - if func_ltwrapper_script_p "$wrapper"; then - notinst_deplibs= - relink_command= - - func_source "$wrapper" - - # Check the variables that should have been set. - test -z "$generated_by_libtool_version" && \ - func_fatal_error "invalid libtool wrapper script '$wrapper'" - - finalize=: - for lib in $notinst_deplibs; do - # Check to see that each library is installed. - libdir= - if test -f "$lib"; then - func_source "$lib" - fi - libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` - if test -n "$libdir" && test ! -f "$libfile"; then - func_warning "'$lib' has not been installed in '$libdir'" - finalize=false - fi - done - - relink_command= - func_source "$wrapper" - - outputname= - if test no = "$fast_install" && test -n "$relink_command"; then - $opt_dry_run || { - if $finalize; then - tmpdir=`func_mktempdir` - func_basename "$file$stripped_ext" - file=$func_basename_result - outputname=$tmpdir/$file - # Replace the output file specification. - relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` - - $opt_quiet || { - func_quote_for_expand "$relink_command" - eval "func_echo $func_quote_for_expand_result" - } - if eval "$relink_command"; then : - else - func_error "error: relink '$file' with the above command before installing it" - $opt_dry_run || ${RM}r "$tmpdir" - continue - fi - file=$outputname - else - func_warning "cannot relink '$file'" - fi - } - else - # Install the binary that we compiled earlier. - file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` - fi - fi - - # remove .exe since cygwin /usr/bin/install will append another - # one anyway - case $install_prog,$host in - */usr/bin/install*,*cygwin*) - case $file:$destfile in - *.exe:*.exe) - # this is ok - ;; - *.exe:*) - destfile=$destfile.exe - ;; - *:*.exe) - func_stripname '' '.exe' "$destfile" - destfile=$func_stripname_result - ;; - esac - ;; - esac - func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' - $opt_dry_run || if test -n "$outputname"; then - ${RM}r "$tmpdir" - fi - ;; - esac - done - - for file in $staticlibs; do - func_basename "$file" - name=$func_basename_result - - # Set up the ranlib parameters. - oldlib=$destdir/$name - func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 - tool_oldlib=$func_to_tool_file_result - - func_show_eval "$install_prog \$file \$oldlib" 'exit $?' - - if test -n "$stripme" && test -n "$old_striplib"; then - func_show_eval "$old_striplib $tool_oldlib" 'exit $?' - fi - - # Do each command in the postinstall commands. - func_execute_cmds "$old_postinstall_cmds" 'exit $?' - done - - test -n "$future_libdirs" && \ - func_warning "remember to run '$progname --finish$future_libdirs'" - - if test -n "$current_libdirs"; then - # Maybe just do a dry run. - $opt_dry_run && current_libdirs=" -n$current_libdirs" - exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' - else - exit $EXIT_SUCCESS - fi -} - -test install = "$opt_mode" && func_mode_install ${1+"$@"} - - -# func_generate_dlsyms outputname originator pic_p -# Extract symbols from dlprefiles and create ${outputname}S.o with -# a dlpreopen symbol table. -func_generate_dlsyms () -{ - $debug_cmd - - my_outputname=$1 - my_originator=$2 - my_pic_p=${3-false} - my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` - my_dlsyms= - - if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then - if test -n "$NM" && test -n "$global_symbol_pipe"; then - my_dlsyms=${my_outputname}S.c - else - func_error "not configured to extract global symbols from dlpreopened files" - fi - fi - - if test -n "$my_dlsyms"; then - case $my_dlsyms in - "") ;; - *.c) - # Discover the nlist of each of the dlfiles. - nlist=$output_objdir/$my_outputname.nm - - func_show_eval "$RM $nlist ${nlist}S ${nlist}T" - - # Parse the name list into a source file. - func_verbose "creating $output_objdir/$my_dlsyms" - - $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ -/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ -/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ - -#ifdef __cplusplus -extern \"C\" { -#endif - -#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) -#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" -#endif - -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE -/* DATA imports from DLLs on WIN32 can't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT_DLSYM_CONST -#elif defined __osf__ -/* This system does not cope well with relocations in const data. */ -# define LT_DLSYM_CONST -#else -# define LT_DLSYM_CONST const -#endif - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* External symbol declarations for the compiler. */\ -" - - if test yes = "$dlself"; then - func_verbose "generating symbol list for '$output'" - - $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" - - # Add our own program objects to the symbol list. - progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` - for progfile in $progfiles; do - func_to_tool_file "$progfile" func_convert_file_msys_to_w32 - func_verbose "extracting global C symbols from '$func_to_tool_file_result'" - $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" - done - - if test -n "$exclude_expsyms"; then - $opt_dry_run || { - eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - if test -n "$export_symbols_regex"; then - $opt_dry_run || { - eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - export_symbols=$output_objdir/$outputname.exp - $opt_dry_run || { - $RM $export_symbols - eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' - ;; - esac - } - else - $opt_dry_run || { - eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' - eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' - ;; - esac - } - fi - fi - - for dlprefile in $dlprefiles; do - func_verbose "extracting global C symbols from '$dlprefile'" - func_basename "$dlprefile" - name=$func_basename_result - case $host in - *cygwin* | *mingw* | *cegcc* ) - # if an import library, we need to obtain dlname - if func_win32_import_lib_p "$dlprefile"; then - func_tr_sh "$dlprefile" - eval "curr_lafile=\$libfile_$func_tr_sh_result" - dlprefile_dlbasename= - if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then - # Use subshell, to avoid clobbering current variable values - dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` - if test -n "$dlprefile_dlname"; then - func_basename "$dlprefile_dlname" - dlprefile_dlbasename=$func_basename_result - else - # no lafile. user explicitly requested -dlpreopen . - $sharedlib_from_linklib_cmd "$dlprefile" - dlprefile_dlbasename=$sharedlib_from_linklib_result - fi - fi - $opt_dry_run || { - if test -n "$dlprefile_dlbasename"; then - eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' - else - func_warning "Could not compute DLL name from $name" - eval '$ECHO ": $name " >> "$nlist"' - fi - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | - $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" - } - else # not an import lib - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - fi - ;; - *) - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - ;; - esac - done - - $opt_dry_run || { - # Make sure we have at least an empty file. - test -f "$nlist" || : > "$nlist" - - if test -n "$exclude_expsyms"; then - $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T - $MV "$nlist"T "$nlist" - fi - - # Try sorting and uniquifying the output. - if $GREP -v "^: " < "$nlist" | - if sort -k 3 /dev/null 2>&1; then - sort -k 3 - else - sort +2 - fi | - uniq > "$nlist"S; then - : - else - $GREP -v "^: " < "$nlist" > "$nlist"S - fi - - if test -f "$nlist"S; then - eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' - else - echo '/* NONE */' >> "$output_objdir/$my_dlsyms" - fi - - func_show_eval '$RM "${nlist}I"' - if test -n "$global_symbol_to_import"; then - eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' - fi - - echo >> "$output_objdir/$my_dlsyms" "\ - -/* The mapping between symbol names and symbols. */ -typedef struct { - const char *name; - void *address; -} lt_dlsymlist; -extern LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[];\ -" - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ -static void lt_syminit(void) -{ - LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; - for (; symbol->name; ++symbol) - {" - $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" - echo >> "$output_objdir/$my_dlsyms" "\ - } -}" - fi - echo >> "$output_objdir/$my_dlsyms" "\ -LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[] = -{ {\"$my_originator\", (void *) 0}," - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ - {\"@INIT@\", (void *) <_syminit}," - fi - - case $need_lib_prefix in - no) - eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - *) - eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - esac - echo >> "$output_objdir/$my_dlsyms" "\ - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt_${my_prefix}_LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif\ -" - } # !$opt_dry_run - - pic_flag_for_symtable= - case "$compile_command " in - *" -static "*) ;; - *) - case $host in - # compiling the symbol table file with pic_flag works around - # a FreeBSD bug that causes programs to crash when -lm is - # linked before any other PIC object. But we must not use - # pic_flag when linking with -static. The problem exists in - # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. - *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) - pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; - *-*-hpux*) - pic_flag_for_symtable=" $pic_flag" ;; - *) - $my_pic_p && pic_flag_for_symtable=" $pic_flag" - ;; - esac - ;; - esac - symtab_cflags= - for arg in $LTCFLAGS; do - case $arg in - -pie | -fpie | -fPIE) ;; - *) func_append symtab_cflags " $arg" ;; - esac - done - - # Now compile the dynamic symbol file. - func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' - - # Clean up the generated files. - func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' - - # Transform the symbol file into the correct name. - symfileobj=$output_objdir/${my_outputname}S.$objext - case $host in - *cygwin* | *mingw* | *cegcc* ) - if test -f "$output_objdir/$my_outputname.def"; then - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - else - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - fi - ;; - *) - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - ;; - esac - ;; - *) - func_fatal_error "unknown suffix for '$my_dlsyms'" - ;; - esac - else - # We keep going just in case the user didn't refer to - # lt_preloaded_symbols. The linker will fail if global_symbol_pipe - # really was required. - - # Nullify the symbol file. - compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` - fi -} - -# func_cygming_gnu_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is a GNU/binutils-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_gnu_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` - test -n "$func_cygming_gnu_implib_tmp" -} - -# func_cygming_ms_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is an MS-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_ms_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` - test -n "$func_cygming_ms_implib_tmp" -} - -# func_win32_libid arg -# return the library type of file 'arg' -# -# Need a lot of goo to handle *both* DLLs and import libs -# Has to be a shell function in order to 'eat' the argument -# that is supplied when $file_magic_command is called. -# Despite the name, also deal with 64 bit binaries. -func_win32_libid () -{ - $debug_cmd - - win32_libid_type=unknown - win32_fileres=`file -L $1 2>/dev/null` - case $win32_fileres in - *ar\ archive\ import\ library*) # definitely import - win32_libid_type="x86 archive import" - ;; - *ar\ archive*) # could be an import, or static - # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. - if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | - $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then - case $nm_interface in - "MS dumpbin") - if func_cygming_ms_implib_p "$1" || - func_cygming_gnu_implib_p "$1" - then - win32_nmres=import - else - win32_nmres= - fi - ;; - *) - func_to_tool_file "$1" func_convert_file_msys_to_w32 - win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | - $SED -n -e ' - 1,100{ - / I /{ - s|.*|import| - p - q - } - }'` - ;; - esac - case $win32_nmres in - import*) win32_libid_type="x86 archive import";; - *) win32_libid_type="x86 archive static";; - esac - fi - ;; - *DLL*) - win32_libid_type="x86 DLL" - ;; - *executable*) # but shell scripts are "executable" too... - case $win32_fileres in - *MS\ Windows\ PE\ Intel*) - win32_libid_type="x86 DLL" - ;; - esac - ;; - esac - $ECHO "$win32_libid_type" -} - -# func_cygming_dll_for_implib ARG -# -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib () -{ - $debug_cmd - - sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` -} - -# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs -# -# The is the core of a fallback implementation of a -# platform-specific function to extract the name of the -# DLL associated with the specified import library LIBNAME. -# -# SECTION_NAME is either .idata$6 or .idata$7, depending -# on the platform and compiler that created the implib. -# -# Echos the name of the DLL associated with the -# specified import library. -func_cygming_dll_for_implib_fallback_core () -{ - $debug_cmd - - match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` - $OBJDUMP -s --section "$1" "$2" 2>/dev/null | - $SED '/^Contents of section '"$match_literal"':/{ - # Place marker at beginning of archive member dllname section - s/.*/====MARK====/ - p - d - } - # These lines can sometimes be longer than 43 characters, but - # are always uninteresting - /:[ ]*file format pe[i]\{,1\}-/d - /^In archive [^:]*:/d - # Ensure marker is printed - /^====MARK====/p - # Remove all lines with less than 43 characters - /^.\{43\}/!d - # From remaining lines, remove first 43 characters - s/^.\{43\}//' | - $SED -n ' - # Join marker and all lines until next marker into a single line - /^====MARK====/ b para - H - $ b para - b - :para - x - s/\n//g - # Remove the marker - s/^====MARK====// - # Remove trailing dots and whitespace - s/[\. \t]*$// - # Print - /./p' | - # we now have a list, one entry per line, of the stringified - # contents of the appropriate section of all members of the - # archive that possess that section. Heuristic: eliminate - # all those that have a first or second character that is - # a '.' (that is, objdump's representation of an unprintable - # character.) This should work for all archives with less than - # 0x302f exports -- but will fail for DLLs whose name actually - # begins with a literal '.' or a single character followed by - # a '.'. - # - # Of those that remain, print the first one. - $SED -e '/^\./d;/^.\./d;q' -} - -# func_cygming_dll_for_implib_fallback ARG -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# -# This fallback implementation is for use when $DLLTOOL -# does not support the --identify-strict option. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib_fallback () -{ - $debug_cmd - - if func_cygming_gnu_implib_p "$1"; then - # binutils import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` - elif func_cygming_ms_implib_p "$1"; then - # ms-generated import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` - else - # unknown - sharedlib_from_linklib_result= - fi -} - - -# func_extract_an_archive dir oldlib -func_extract_an_archive () -{ - $debug_cmd - - f_ex_an_ar_dir=$1; shift - f_ex_an_ar_oldlib=$1 - if test yes = "$lock_old_archive_extraction"; then - lockfile=$f_ex_an_ar_oldlib.lock - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - fi - func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ - 'stat=$?; rm -f "$lockfile"; exit $stat' - if test yes = "$lock_old_archive_extraction"; then - $opt_dry_run || rm -f "$lockfile" - fi - if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then - : - else - func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" - fi -} - - -# func_extract_archives gentop oldlib ... -func_extract_archives () -{ - $debug_cmd - - my_gentop=$1; shift - my_oldlibs=${1+"$@"} - my_oldobjs= - my_xlib= - my_xabs= - my_xdir= - - for my_xlib in $my_oldlibs; do - # Extract the objects. - case $my_xlib in - [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; - *) my_xabs=`pwd`"/$my_xlib" ;; - esac - func_basename "$my_xlib" - my_xlib=$func_basename_result - my_xlib_u=$my_xlib - while :; do - case " $extracted_archives " in - *" $my_xlib_u "*) - func_arith $extracted_serial + 1 - extracted_serial=$func_arith_result - my_xlib_u=lt$extracted_serial-$my_xlib ;; - *) break ;; - esac - done - extracted_archives="$extracted_archives $my_xlib_u" - my_xdir=$my_gentop/$my_xlib_u - - func_mkdir_p "$my_xdir" - - case $host in - *-darwin*) - func_verbose "Extracting $my_xabs" - # Do not bother doing anything if just a dry run - $opt_dry_run || { - darwin_orig_dir=`pwd` - cd $my_xdir || exit $? - darwin_archive=$my_xabs - darwin_curdir=`pwd` - func_basename "$darwin_archive" - darwin_base_archive=$func_basename_result - darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` - if test -n "$darwin_arches"; then - darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` - darwin_arch= - func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" - for darwin_arch in $darwin_arches; do - func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" - $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" - cd "unfat-$$/$darwin_base_archive-$darwin_arch" - func_extract_an_archive "`pwd`" "$darwin_base_archive" - cd "$darwin_curdir" - $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" - done # $darwin_arches - ## Okay now we've a bunch of thin objects, gotta fatten them up :) - darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` - darwin_file= - darwin_files= - for darwin_file in $darwin_filelist; do - darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` - $LIPO -create -output "$darwin_file" $darwin_files - done # $darwin_filelist - $RM -rf unfat-$$ - cd "$darwin_orig_dir" - else - cd $darwin_orig_dir - func_extract_an_archive "$my_xdir" "$my_xabs" - fi # $darwin_arches - } # !$opt_dry_run - ;; - *) - func_extract_an_archive "$my_xdir" "$my_xabs" - ;; - esac - my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` - done - - func_extract_archives_result=$my_oldobjs -} - - -# func_emit_wrapper [arg=no] -# -# Emit a libtool wrapper script on stdout. -# Don't directly open a file because we may want to -# incorporate the script contents within a cygwin/mingw -# wrapper executable. Must ONLY be called from within -# func_mode_link because it depends on a number of variables -# set therein. -# -# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR -# variable will take. If 'yes', then the emitted script -# will assume that the directory where it is stored is -# the $objdir directory. This is a cygwin/mingw-specific -# behavior. -func_emit_wrapper () -{ - func_emit_wrapper_arg1=${1-no} - - $ECHO "\ -#! $SHELL - -# $output - temporary wrapper script for $objdir/$outputname -# Generated by $PROGRAM (GNU $PACKAGE) $VERSION -# -# The $output program cannot be directly executed until all the libtool -# libraries that it depends on are installed. -# -# This wrapper script should never be moved out of the build directory. -# If it is, it will not operate correctly. - -# Sed substitution that helps us do robust quoting. It backslashifies -# metacharacters that are still active within double-quoted strings. -sed_quote_subst='$sed_quote_subst' - -# Be Bourne compatible -if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then - emulate sh - NULLCMD=: - # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which - # is contrary to our usage. Disable this feature. - alias -g '\${1+\"\$@\"}'='\"\$@\"' - setopt NO_GLOB_SUBST -else - case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac -fi -BIN_SH=xpg4; export BIN_SH # for Tru64 -DUALCASE=1; export DUALCASE # for MKS sh - -# The HP-UX ksh and POSIX shell print the target directory to stdout -# if CDPATH is set. -(unset CDPATH) >/dev/null 2>&1 && unset CDPATH - -relink_command=\"$relink_command\" - -# This environment variable determines our operation mode. -if test \"\$libtool_install_magic\" = \"$magic\"; then - # install mode needs the following variables: - generated_by_libtool_version='$macro_version' - notinst_deplibs='$notinst_deplibs' -else - # When we are sourced in execute mode, \$file and \$ECHO are already set. - if test \"\$libtool_execute_magic\" != \"$magic\"; then - file=\"\$0\"" - - qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` - $ECHO "\ - -# A function that is used when there is no print builtin or printf. -func_fallback_echo () -{ - eval 'cat <<_LTECHO_EOF -\$1 -_LTECHO_EOF' -} - ECHO=\"$qECHO\" - fi - -# Very basic option parsing. These options are (a) specific to -# the libtool wrapper, (b) are identical between the wrapper -# /script/ and the wrapper /executable/ that is used only on -# windows platforms, and (c) all begin with the string "--lt-" -# (application programs are unlikely to have options that match -# this pattern). -# -# There are only two supported options: --lt-debug and -# --lt-dump-script. There is, deliberately, no --lt-help. -# -# The first argument to this parsing function should be the -# script's $0 value, followed by "$@". -lt_option_debug= -func_parse_lt_options () -{ - lt_script_arg0=\$0 - shift - for lt_opt - do - case \"\$lt_opt\" in - --lt-debug) lt_option_debug=1 ;; - --lt-dump-script) - lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` - test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. - lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` - cat \"\$lt_dump_D/\$lt_dump_F\" - exit 0 - ;; - --lt-*) - \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 - exit 1 - ;; - esac - done - - # Print the debug banner immediately: - if test -n \"\$lt_option_debug\"; then - echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 - fi -} - -# Used when --lt-debug. Prints its arguments to stdout -# (redirection is the responsibility of the caller) -func_lt_dump_args () -{ - lt_dump_args_N=1; - for lt_arg - do - \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" - lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` - done -} - -# Core function for launching the target application -func_exec_program_core () -{ -" - case $host in - # Backslashes separate directories on plain windows - *-*-mingw | *-*-os2* | *-cegcc*) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} -" - ;; - - *) - $ECHO "\ - if test -n \"\$lt_option_debug\"; then - \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 - func_lt_dump_args \${1+\"\$@\"} 1>&2 - fi - exec \"\$progdir/\$program\" \${1+\"\$@\"} -" - ;; - esac - $ECHO "\ - \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 - exit 1 -} - -# A function to encapsulate launching the target application -# Strips options in the --lt-* namespace from \$@ and -# launches target application with the remaining arguments. -func_exec_program () -{ - case \" \$* \" in - *\\ --lt-*) - for lt_wr_arg - do - case \$lt_wr_arg in - --lt-*) ;; - *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; - esac - shift - done ;; - esac - func_exec_program_core \${1+\"\$@\"} -} - - # Parse options - func_parse_lt_options \"\$0\" \${1+\"\$@\"} - - # Find the directory that this script lives in. - thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` - test \"x\$thisdir\" = \"x\$file\" && thisdir=. - - # Follow symbolic links until we get to the real thisdir. - file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` - while test -n \"\$file\"; do - destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` - - # If there was a directory component, then change thisdir. - if test \"x\$destdir\" != \"x\$file\"; then - case \"\$destdir\" in - [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; - *) thisdir=\"\$thisdir/\$destdir\" ;; - esac - fi - - file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` - file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` - done - - # Usually 'no', except on cygwin/mingw when embedded into - # the cwrapper. - WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 - if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then - # special case for '.' - if test \"\$thisdir\" = \".\"; then - thisdir=\`pwd\` - fi - # remove .libs from thisdir - case \"\$thisdir\" in - *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; - $objdir ) thisdir=. ;; - esac - fi - - # Try to get the absolute directory name. - absdir=\`cd \"\$thisdir\" && pwd\` - test -n \"\$absdir\" && thisdir=\"\$absdir\" -" - - if test yes = "$fast_install"; then - $ECHO "\ - program=lt-'$outputname'$exeext - progdir=\"\$thisdir/$objdir\" - - if test ! -f \"\$progdir/\$program\" || - { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ - test \"X\$file\" != \"X\$progdir/\$program\"; }; then - - file=\"\$\$-\$program\" - - if test ! -d \"\$progdir\"; then - $MKDIR \"\$progdir\" - else - $RM \"\$progdir/\$file\" - fi" - - $ECHO "\ - - # relink executable if necessary - if test -n \"\$relink_command\"; then - if relink_command_output=\`eval \$relink_command 2>&1\`; then : - else - \$ECHO \"\$relink_command_output\" >&2 - $RM \"\$progdir/\$file\" - exit 1 - fi - fi - - $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || - { $RM \"\$progdir/\$program\"; - $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } - $RM \"\$progdir/\$file\" - fi" - else - $ECHO "\ - program='$outputname' - progdir=\"\$thisdir/$objdir\" -" - fi - - $ECHO "\ - - if test -f \"\$progdir/\$program\"; then" - - # fixup the dll searchpath if we need to. - # - # Fix the DLL searchpath if we need to. Do this before prepending - # to shlibpath, because on Windows, both are PATH and uninstalled - # libraries must come first. - if test -n "$dllsearchpath"; then - $ECHO "\ - # Add the dll search path components to the executable PATH - PATH=$dllsearchpath:\$PATH -" - fi - - # Export our shlibpath_var if we have one. - if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then - $ECHO "\ - # Add our own library path to $shlibpath_var - $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" - - # Some systems cannot cope with colon-terminated $shlibpath_var - # The second colon is a workaround for a bug in BeOS R4 sed - $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` - - export $shlibpath_var -" - fi - - $ECHO "\ - if test \"\$libtool_execute_magic\" != \"$magic\"; then - # Run the actual program with our arguments. - func_exec_program \${1+\"\$@\"} - fi - else - # The program doesn't exist. - \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 - \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 - \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 - exit 1 - fi -fi\ -" -} - - -# func_emit_cwrapperexe_src -# emit the source code for a wrapper executable on stdout -# Must ONLY be called from within func_mode_link because -# it depends on a number of variable set therein. -func_emit_cwrapperexe_src () -{ - cat < -#include -#ifdef _MSC_VER -# include -# include -# include -#else -# include -# include -# ifdef __CYGWIN__ -# include -# endif -#endif -#include -#include -#include -#include -#include -#include -#include -#include - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* declarations of non-ANSI functions */ -#if defined __MINGW32__ -# ifdef __STRICT_ANSI__ -int _putenv (const char *); -# endif -#elif defined __CYGWIN__ -# ifdef __STRICT_ANSI__ -char *realpath (const char *, char *); -int putenv (char *); -int setenv (const char *, const char *, int); -# endif -/* #elif defined other_platform || defined ... */ -#endif - -/* portability defines, excluding path handling macros */ -#if defined _MSC_VER -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -# define S_IXUSR _S_IEXEC -#elif defined __MINGW32__ -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -#elif defined __CYGWIN__ -# define HAVE_SETENV -# define FOPEN_WB "wb" -/* #elif defined other platforms ... */ -#endif - -#if defined PATH_MAX -# define LT_PATHMAX PATH_MAX -#elif defined MAXPATHLEN -# define LT_PATHMAX MAXPATHLEN -#else -# define LT_PATHMAX 1024 -#endif - -#ifndef S_IXOTH -# define S_IXOTH 0 -#endif -#ifndef S_IXGRP -# define S_IXGRP 0 -#endif - -/* path handling portability macros */ -#ifndef DIR_SEPARATOR -# define DIR_SEPARATOR '/' -# define PATH_SEPARATOR ':' -#endif - -#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ - defined __OS2__ -# define HAVE_DOS_BASED_FILE_SYSTEM -# define FOPEN_WB "wb" -# ifndef DIR_SEPARATOR_2 -# define DIR_SEPARATOR_2 '\\' -# endif -# ifndef PATH_SEPARATOR_2 -# define PATH_SEPARATOR_2 ';' -# endif -#endif - -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(ch) \ - (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -#ifndef PATH_SEPARATOR_2 -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) -#else /* PATH_SEPARATOR_2 */ -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) -#endif /* PATH_SEPARATOR_2 */ - -#ifndef FOPEN_WB -# define FOPEN_WB "w" -#endif -#ifndef _O_BINARY -# define _O_BINARY 0 -#endif - -#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) -#define XFREE(stale) do { \ - if (stale) { free (stale); stale = 0; } \ -} while (0) - -#if defined LT_DEBUGWRAPPER -static int lt_debug = 1; -#else -static int lt_debug = 0; -#endif - -const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ - -void *xmalloc (size_t num); -char *xstrdup (const char *string); -const char *base_name (const char *name); -char *find_executable (const char *wrapper); -char *chase_symlinks (const char *pathspec); -int make_executable (const char *path); -int check_executable (const char *path); -char *strendzap (char *str, const char *pat); -void lt_debugprintf (const char *file, int line, const char *fmt, ...); -void lt_fatal (const char *file, int line, const char *message, ...); -static const char *nonnull (const char *s); -static const char *nonempty (const char *s); -void lt_setenv (const char *name, const char *value); -char *lt_extend_str (const char *orig_value, const char *add, int to_end); -void lt_update_exe_path (const char *name, const char *value); -void lt_update_lib_path (const char *name, const char *value); -char **prepare_spawn (char **argv); -void lt_dump_script (FILE *f); -EOF - - cat <= 0) - && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) - return 1; - else - return 0; -} - -int -make_executable (const char *path) -{ - int rval = 0; - struct stat st; - - lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", - nonempty (path)); - if ((!path) || (!*path)) - return 0; - - if (stat (path, &st) >= 0) - { - rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); - } - return rval; -} - -/* Searches for the full path of the wrapper. Returns - newly allocated full path name if found, NULL otherwise - Does not chase symlinks, even on platforms that support them. -*/ -char * -find_executable (const char *wrapper) -{ - int has_slash = 0; - const char *p; - const char *p_next; - /* static buffer for getcwd */ - char tmp[LT_PATHMAX + 1]; - size_t tmp_len; - char *concat_name; - - lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", - nonempty (wrapper)); - - if ((wrapper == NULL) || (*wrapper == '\0')) - return NULL; - - /* Absolute path? */ -#if defined HAVE_DOS_BASED_FILE_SYSTEM - if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - else - { -#endif - if (IS_DIR_SEPARATOR (wrapper[0])) - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } -#if defined HAVE_DOS_BASED_FILE_SYSTEM - } -#endif - - for (p = wrapper; *p; p++) - if (*p == '/') - { - has_slash = 1; - break; - } - if (!has_slash) - { - /* no slashes; search PATH */ - const char *path = getenv ("PATH"); - if (path != NULL) - { - for (p = path; *p; p = p_next) - { - const char *q; - size_t p_len; - for (q = p; *q; q++) - if (IS_PATH_SEPARATOR (*q)) - break; - p_len = (size_t) (q - p); - p_next = (*q == '\0' ? q : q + 1); - if (p_len == 0) - { - /* empty path: current directory */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = - XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - } - else - { - concat_name = - XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, p, p_len); - concat_name[p_len] = '/'; - strcpy (concat_name + p_len + 1, wrapper); - } - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - } - /* not found in PATH; assume curdir */ - } - /* Relative path | not found in path: prepend cwd */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - return NULL; -} - -char * -chase_symlinks (const char *pathspec) -{ -#ifndef S_ISLNK - return xstrdup (pathspec); -#else - char buf[LT_PATHMAX]; - struct stat s; - char *tmp_pathspec = xstrdup (pathspec); - char *p; - int has_symlinks = 0; - while (strlen (tmp_pathspec) && !has_symlinks) - { - lt_debugprintf (__FILE__, __LINE__, - "checking path component for symlinks: %s\n", - tmp_pathspec); - if (lstat (tmp_pathspec, &s) == 0) - { - if (S_ISLNK (s.st_mode) != 0) - { - has_symlinks = 1; - break; - } - - /* search backwards for last DIR_SEPARATOR */ - p = tmp_pathspec + strlen (tmp_pathspec) - 1; - while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - p--; - if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - { - /* no more DIR_SEPARATORS left */ - break; - } - *p = '\0'; - } - else - { - lt_fatal (__FILE__, __LINE__, - "error accessing file \"%s\": %s", - tmp_pathspec, nonnull (strerror (errno))); - } - } - XFREE (tmp_pathspec); - - if (!has_symlinks) - { - return xstrdup (pathspec); - } - - tmp_pathspec = realpath (pathspec, buf); - if (tmp_pathspec == 0) - { - lt_fatal (__FILE__, __LINE__, - "could not follow symlinks for %s", pathspec); - } - return xstrdup (tmp_pathspec); -#endif -} - -char * -strendzap (char *str, const char *pat) -{ - size_t len, patlen; - - assert (str != NULL); - assert (pat != NULL); - - len = strlen (str); - patlen = strlen (pat); - - if (patlen <= len) - { - str += len - patlen; - if (STREQ (str, pat)) - *str = '\0'; - } - return str; -} - -void -lt_debugprintf (const char *file, int line, const char *fmt, ...) -{ - va_list args; - if (lt_debug) - { - (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); - va_start (args, fmt); - (void) vfprintf (stderr, fmt, args); - va_end (args); - } -} - -static void -lt_error_core (int exit_status, const char *file, - int line, const char *mode, - const char *message, va_list ap) -{ - fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); - vfprintf (stderr, message, ap); - fprintf (stderr, ".\n"); - - if (exit_status >= 0) - exit (exit_status); -} - -void -lt_fatal (const char *file, int line, const char *message, ...) -{ - va_list ap; - va_start (ap, message); - lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); - va_end (ap); -} - -static const char * -nonnull (const char *s) -{ - return s ? s : "(null)"; -} - -static const char * -nonempty (const char *s) -{ - return (s && !*s) ? "(empty)" : nonnull (s); -} - -void -lt_setenv (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_setenv) setting '%s' to '%s'\n", - nonnull (name), nonnull (value)); - { -#ifdef HAVE_SETENV - /* always make a copy, for consistency with !HAVE_SETENV */ - char *str = xstrdup (value); - setenv (name, str, 1); -#else - size_t len = strlen (name) + 1 + strlen (value) + 1; - char *str = XMALLOC (char, len); - sprintf (str, "%s=%s", name, value); - if (putenv (str) != EXIT_SUCCESS) - { - XFREE (str); - } -#endif - } -} - -char * -lt_extend_str (const char *orig_value, const char *add, int to_end) -{ - char *new_value; - if (orig_value && *orig_value) - { - size_t orig_value_len = strlen (orig_value); - size_t add_len = strlen (add); - new_value = XMALLOC (char, add_len + orig_value_len + 1); - if (to_end) - { - strcpy (new_value, orig_value); - strcpy (new_value + orig_value_len, add); - } - else - { - strcpy (new_value, add); - strcpy (new_value + add_len, orig_value); - } - } - else - { - new_value = xstrdup (add); - } - return new_value; -} - -void -lt_update_exe_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - /* some systems can't cope with a ':'-terminated path #' */ - size_t len = strlen (new_value); - while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) - { - new_value[--len] = '\0'; - } - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -void -lt_update_lib_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -EOF - case $host_os in - mingw*) - cat <<"EOF" - -/* Prepares an argument vector before calling spawn(). - Note that spawn() does not by itself call the command interpreter - (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : - ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&v); - v.dwPlatformId == VER_PLATFORM_WIN32_NT; - }) ? "cmd.exe" : "command.com"). - Instead it simply concatenates the arguments, separated by ' ', and calls - CreateProcess(). We must quote the arguments since Win32 CreateProcess() - interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a - special way: - - Space and tab are interpreted as delimiters. They are not treated as - delimiters if they are surrounded by double quotes: "...". - - Unescaped double quotes are removed from the input. Their only effect is - that within double quotes, space and tab are treated like normal - characters. - - Backslashes not followed by double quotes are not special. - - But 2*n+1 backslashes followed by a double quote become - n backslashes followed by a double quote (n >= 0): - \" -> " - \\\" -> \" - \\\\\" -> \\" - */ -#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -char ** -prepare_spawn (char **argv) -{ - size_t argc; - char **new_argv; - size_t i; - - /* Count number of arguments. */ - for (argc = 0; argv[argc] != NULL; argc++) - ; - - /* Allocate new argument vector. */ - new_argv = XMALLOC (char *, argc + 1); - - /* Put quoted arguments into the new argument vector. */ - for (i = 0; i < argc; i++) - { - const char *string = argv[i]; - - if (string[0] == '\0') - new_argv[i] = xstrdup ("\"\""); - else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) - { - int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); - size_t length; - unsigned int backslashes; - const char *s; - char *quoted_string; - char *p; - - length = 0; - backslashes = 0; - if (quote_around) - length++; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - length += backslashes + 1; - length++; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - length += backslashes + 1; - - quoted_string = XMALLOC (char, length + 1); - - p = quoted_string; - backslashes = 0; - if (quote_around) - *p++ = '"'; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - { - unsigned int j; - for (j = backslashes + 1; j > 0; j--) - *p++ = '\\'; - } - *p++ = c; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - { - unsigned int j; - for (j = backslashes; j > 0; j--) - *p++ = '\\'; - *p++ = '"'; - } - *p = '\0'; - - new_argv[i] = quoted_string; - } - else - new_argv[i] = (char *) string; - } - new_argv[argc] = NULL; - - return new_argv; -} -EOF - ;; - esac - - cat <<"EOF" -void lt_dump_script (FILE* f) -{ -EOF - func_emit_wrapper yes | - $SED -n -e ' -s/^\(.\{79\}\)\(..*\)/\1\ -\2/ -h -s/\([\\"]\)/\\\1/g -s/$/\\n/ -s/\([^\n]*\).*/ fputs ("\1", f);/p -g -D' - cat <<"EOF" -} -EOF -} -# end: func_emit_cwrapperexe_src - -# func_win32_import_lib_p ARG -# True if ARG is an import lib, as indicated by $file_magic_cmd -func_win32_import_lib_p () -{ - $debug_cmd - - case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in - *import*) : ;; - *) false ;; - esac -} - -# func_suncc_cstd_abi -# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! -# Several compiler flags select an ABI that is incompatible with the -# Cstd library. Avoid specifying it if any are in CXXFLAGS. -func_suncc_cstd_abi () -{ - $debug_cmd - - case " $compile_command " in - *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) - suncc_use_cstd_abi=no - ;; - *) - suncc_use_cstd_abi=yes - ;; - esac -} - -# func_mode_link arg... -func_mode_link () -{ - $debug_cmd - - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - # It is impossible to link a dll without this setting, and - # we shouldn't force the makefile maintainer to figure out - # what system we are compiling for in order to pass an extra - # flag for every libtool invocation. - # allow_undefined=no - - # FIXME: Unfortunately, there are problems with the above when trying - # to make a dll that has undefined symbols, in which case not - # even a static library is built. For now, we need to specify - # -no-undefined on the libtool link line when we can be certain - # that all symbols are satisfied, otherwise we get a static library. - allow_undefined=yes - ;; - *) - allow_undefined=yes - ;; - esac - libtool_args=$nonopt - base_compile="$nonopt $@" - compile_command=$nonopt - finalize_command=$nonopt - - compile_rpath= - finalize_rpath= - compile_shlibpath= - finalize_shlibpath= - convenience= - old_convenience= - deplibs= - old_deplibs= - compiler_flags= - linker_flags= - dllsearchpath= - lib_search_path=`pwd` - inst_prefix_dir= - new_inherited_linker_flags= - - avoid_version=no - bindir= - dlfiles= - dlprefiles= - dlself=no - export_dynamic=no - export_symbols= - export_symbols_regex= - generated= - libobjs= - ltlibs= - module=no - no_install=no - objs= - os2dllname= - non_pic_objects= - precious_files_regex= - prefer_static_libs=no - preload=false - prev= - prevarg= - release= - rpath= - xrpath= - perm_rpath= - temp_rpath= - thread_safe=no - vinfo= - vinfo_number=no - weak_libs= - single_module=$wl-single_module - func_infer_tag $base_compile - - # We need to know -static, to get the right output filenames. - for arg - do - case $arg in - -shared) - test yes != "$build_libtool_libs" \ - && func_fatal_configuration "cannot build a shared library" - build_old_libs=no - break - ;; - -all-static | -static | -static-libtool-libs) - case $arg in - -all-static) - if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then - func_warning "complete static linking is impossible in this configuration" - fi - if test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - -static) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=built - ;; - -static-libtool-libs) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - esac - build_libtool_libs=no - build_old_libs=yes - break - ;; - esac - done - - # See if our shared archives depend on static archives. - test -n "$old_archive_from_new_cmds" && build_old_libs=yes - - # Go through the arguments, transforming them on the way. - while test "$#" -gt 0; do - arg=$1 - shift - func_quote_for_eval "$arg" - qarg=$func_quote_for_eval_unquoted_result - func_append libtool_args " $func_quote_for_eval_result" - - # If the previous option needs an argument, assign it. - if test -n "$prev"; then - case $prev in - output) - func_append compile_command " @OUTPUT@" - func_append finalize_command " @OUTPUT@" - ;; - esac - - case $prev in - bindir) - bindir=$arg - prev= - continue - ;; - dlfiles|dlprefiles) - $preload || { - # Add the symbol object into the linking commands. - func_append compile_command " @SYMFILE@" - func_append finalize_command " @SYMFILE@" - preload=: - } - case $arg in - *.la | *.lo) ;; # We handle these cases below. - force) - if test no = "$dlself"; then - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - self) - if test dlprefiles = "$prev"; then - dlself=yes - elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then - dlself=yes - else - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - *) - if test dlfiles = "$prev"; then - func_append dlfiles " $arg" - else - func_append dlprefiles " $arg" - fi - prev= - continue - ;; - esac - ;; - expsyms) - export_symbols=$arg - test -f "$arg" \ - || func_fatal_error "symbol file '$arg' does not exist" - prev= - continue - ;; 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then - # Prepend the subdirectory the object is found in. - pic_object=$xdir$pic_object - - if test dlfiles = "$prev"; then - if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then - func_append dlfiles " $pic_object" - prev= - continue - else - # If libtool objects are unsupported, then we need to preload. - prev=dlprefiles - fi - fi - - # CHECK ME: I think I busted this. -Ossama - if test dlprefiles = "$prev"; then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg=$pic_object - fi - - # Non-PIC object. - if test none != "$non_pic_object"; then - # Prepend the subdirectory the object is found in. - non_pic_object=$xdir$non_pic_object - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test none = "$pic_object"; then - arg=$non_pic_object - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object=$pic_object - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; then - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir=$func_dirname_result - - func_lo2o "$arg" - pic_object=$xdir$objdir/$func_lo2o_result - non_pic_object=$xdir$func_lo2o_result - func_append libobjs " $pic_object" - func_append non_pic_objects " $non_pic_object" - else - func_fatal_error "'$arg' is not a valid libtool object" - fi - fi - done - else - func_fatal_error "link input file '$arg' does not exist" - fi - arg=$save_arg - prev= - continue - ;; - os2dllname) - os2dllname=$arg - prev= - continue - ;; - precious_regex) - precious_files_regex=$arg - prev= - continue - ;; - release) - release=-$arg - prev= - continue - ;; - rpath | xrpath) - # We need an absolute path. - case $arg in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - func_fatal_error "only absolute run-paths are allowed" - ;; - esac - if test rpath = "$prev"; then - case "$rpath " in - *" $arg "*) ;; - *) func_append rpath " $arg" ;; - esac - else - case "$xrpath " in - *" $arg "*) ;; - *) func_append xrpath " $arg" ;; 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Don't bleat about dlopened modules though! - dlopenmodule= - for dlpremoduletest in $dlprefiles; do - if test "X$dlpremoduletest" = "X$lib"; then - dlopenmodule=$dlpremoduletest - break - fi - done - if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then - echo - if test prog = "$linkmode"; then - $ECHO "*** Warning: Linking the executable $output against the loadable module" - else - $ECHO "*** Warning: Linking the shared library $output against the loadable module" - fi - $ECHO "*** $linklib is not portable!" - fi - if test lib = "$linkmode" && - test yes = "$hardcode_into_libs"; then - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi - - if test -n "$old_archive_from_expsyms_cmds"; then - # figure out the soname - set dummy $library_names - shift - realname=$1 - shift - libname=`eval "\\$ECHO \"$libname_spec\""` - # use dlname if we got it. it's perfectly good, no? - if test -n "$dlname"; then - soname=$dlname - elif test -n "$soname_spec"; then - # bleh windows - case $host in - *cygwin* | mingw* | *cegcc* | *os2*) - func_arith $current - $age - major=$func_arith_result - versuffix=-$major - ;; - esac - eval soname=\"$soname_spec\" - else - soname=$realname - fi - - # Make a new name for the extract_expsyms_cmds to use - soroot=$soname - func_basename "$soroot" - soname=$func_basename_result - func_stripname 'lib' '.dll' "$soname" - newlib=libimp-$func_stripname_result.a - - # If the library has no export list, then create one now - if test -f "$output_objdir/$soname-def"; then : - else - func_verbose "extracting exported symbol list from '$soname'" - func_execute_cmds "$extract_expsyms_cmds" 'exit $?' - fi - - # Create $newlib - if test -f "$output_objdir/$newlib"; then :; else - func_verbose "generating import library for '$soname'" - func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' - fi - # make sure the library variables are pointing to the new library - dir=$output_objdir - linklib=$newlib - fi # test -n "$old_archive_from_expsyms_cmds" - - if test prog = "$linkmode" || test relink != "$opt_mode"; then - add_shlibpath= - add_dir= - add= - lib_linked=yes - case $hardcode_action in - immediate | unsupported) - if test no = "$hardcode_direct"; then - add=$dir/$linklib - case $host in - *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; - *-*-sysv4*uw2*) add_dir=-L$dir ;; - *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ - *-*-unixware7*) add_dir=-L$dir ;; - *-*-darwin* ) - # if the lib is a (non-dlopened) module then we cannot - # link against it, someone is ignoring the earlier warnings - if /usr/bin/file -L $add 2> /dev/null | - $GREP ": [^:]* bundle" >/dev/null; then - if test "X$dlopenmodule" != "X$lib"; then - $ECHO "*** Warning: lib $linklib is a module, not a shared library" - if test -z "$old_library"; then - echo - echo "*** And there doesn't seem to be a static archive available" - echo "*** The link will probably fail, sorry" - else - add=$dir/$old_library - fi - elif test -n "$old_library"; then - add=$dir/$old_library - fi - fi - esac - elif test no = "$hardcode_minus_L"; then - case $host in - *-*-sunos*) add_shlibpath=$dir ;; - esac - add_dir=-L$dir - add=-l$name - elif test no = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - relink) - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$dir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$absdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - *) lib_linked=no ;; - esac - - if test yes != "$lib_linked"; then - func_fatal_configuration "unsupported hardcode properties" - fi - - if test -n "$add_shlibpath"; then - case :$compile_shlibpath: in - *":$add_shlibpath:"*) ;; - *) func_append compile_shlibpath "$add_shlibpath:" ;; - esac - fi - if test prog = "$linkmode"; then - test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" - test -n "$add" && compile_deplibs="$add $compile_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - if test yes != "$hardcode_direct" && - test yes != "$hardcode_minus_L" && - test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - fi - fi - fi - - if test prog = "$linkmode" || test relink = "$opt_mode"; then - add_shlibpath= - add_dir= - add= - # Finalize command for both is simple: just hardcode it. - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$libdir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$libdir - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - add=-l$name - elif test yes = "$hardcode_automatic"; then - if test -n "$inst_prefix_dir" && - test -f "$inst_prefix_dir$libdir/$linklib"; then - add=$inst_prefix_dir$libdir/$linklib - else - add=$libdir/$linklib - fi - else - # We cannot seem to hardcode it, guess we'll fake it. - add_dir=-L$libdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - fi - - if test prog = "$linkmode"; then - test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" - test -n "$add" && finalize_deplibs="$add $finalize_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - fi - fi - elif test prog = "$linkmode"; then - # Here we assume that one of hardcode_direct or hardcode_minus_L - # is not unsupported. This is valid on all known static and - # shared platforms. - if test unsupported != "$hardcode_direct"; then - test -n "$old_library" && linklib=$old_library - compile_deplibs="$dir/$linklib $compile_deplibs" - finalize_deplibs="$dir/$linklib $finalize_deplibs" - else - compile_deplibs="-l$name -L$dir $compile_deplibs" - finalize_deplibs="-l$name -L$dir $finalize_deplibs" - fi - elif test yes = "$build_libtool_libs"; then - # Not a shared library - if test pass_all != "$deplibs_check_method"; then - # We're trying link a shared library against a static one - # but the system doesn't support it. - - # Just print a warning and add the library to dependency_libs so - # that the program can be linked against the static library. - echo - $ECHO "*** Warning: This system cannot link to static lib archive $lib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - else - deplibs="$dir/$old_library $deplibs" - link_static=yes - fi - fi # link shared/static library? - - if test lib = "$linkmode"; then - if test -n "$dependency_libs" && - { test yes != "$hardcode_into_libs" || - test yes = "$build_old_libs" || - test yes = "$link_static"; }; then - # Extract -R from dependency_libs - temp_deplibs= - for libdir in $dependency_libs; do - case $libdir in - -R*) func_stripname '-R' '' "$libdir" - temp_xrpath=$func_stripname_result - case " $xrpath " in - *" $temp_xrpath "*) ;; - *) func_append xrpath " $temp_xrpath";; - esac;; - *) func_append temp_deplibs " $libdir";; - esac - done - dependency_libs=$temp_deplibs - fi - - func_append newlib_search_path " $absdir" - # Link against this library - test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" - # ... and its dependency_libs - tmp_libs= - for deplib in $dependency_libs; do - newdependency_libs="$deplib $newdependency_libs" - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result";; - *) func_resolve_sysroot "$deplib" ;; - esac - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $func_resolve_sysroot_result "*) - func_append specialdeplibs " $func_resolve_sysroot_result" ;; - esac - fi - func_append tmp_libs " $func_resolve_sysroot_result" - done - - if test no != "$link_all_deplibs"; then - # Add the search paths of all dependency libraries - for deplib in $dependency_libs; do - path= - case $deplib in - -L*) path=$deplib ;; - *.la) - func_resolve_sysroot "$deplib" - deplib=$func_resolve_sysroot_result - func_dirname "$deplib" "" "." - dir=$func_dirname_result - # We need an absolute path. - case $dir in - [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; - *) - absdir=`cd "$dir" && pwd` - if test -z "$absdir"; then - func_warning "cannot determine absolute directory name of '$dir'" - absdir=$dir - fi - ;; - esac - if $GREP "^installed=no" $deplib > /dev/null; then - case $host in - *-*-darwin*) - depdepl= - eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` - if test -n "$deplibrary_names"; then - for tmp in $deplibrary_names; do - depdepl=$tmp - done - if test -f "$absdir/$objdir/$depdepl"; then - depdepl=$absdir/$objdir/$depdepl - darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - if test -z "$darwin_install_name"; then - darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` - fi - func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" - func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" - path= - fi - fi - ;; - *) - path=-L$absdir/$objdir - ;; - esac - else - eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` - test -z "$libdir" && \ - func_fatal_error "'$deplib' is not a valid libtool archive" - test "$absdir" != "$libdir" && \ - func_warning "'$deplib' seems to be moved" - - path=-L$absdir - fi - ;; - esac - case " $deplibs " in - *" $path "*) ;; - *) deplibs="$path $deplibs" ;; - esac - done - fi # link_all_deplibs != no - fi # linkmode = lib - done # for deplib in $libs - if test link = "$pass"; then - if test prog = "$linkmode"; then - compile_deplibs="$new_inherited_linker_flags $compile_deplibs" - finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" - else - compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - fi - fi - dependency_libs=$newdependency_libs - if test dlpreopen = "$pass"; then - # Link the dlpreopened libraries before other libraries - for deplib in $save_deplibs; do - deplibs="$deplib $deplibs" - done - fi - if test dlopen != "$pass"; then - test conv = "$pass" || { - # Make sure lib_search_path contains only unique directories. - lib_search_path= - for dir in $newlib_search_path; do - case "$lib_search_path " in - *" $dir "*) ;; - *) func_append lib_search_path " $dir" ;; - esac - done - newlib_search_path= - } - - if test prog,link = "$linkmode,$pass"; then - vars="compile_deplibs finalize_deplibs" - else - vars=deplibs - fi - for var in $vars dependency_libs; do - # Add libraries to $var in reverse order - eval tmp_libs=\"\$$var\" - new_libs= - for deplib in $tmp_libs; do - # FIXME: Pedantically, this is the right thing to do, so - # that some nasty dependency loop isn't accidentally - # broken: - #new_libs="$deplib $new_libs" - # Pragmatically, this seems to cause very few problems in - # practice: - case $deplib in - -L*) new_libs="$deplib $new_libs" ;; - -R*) ;; - *) - # And here is the reason: when a library appears more - # than once as an explicit dependence of a library, or - # is implicitly linked in more than once by the - # compiler, it is considered special, and multiple - # occurrences thereof are not removed. 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then - if test yes = "$build_libtool_libs"; then - # Building a libtool convenience library. - # Some compilers have problems with a '.al' extension so - # convenience libraries should have the same extension an - # archive normally would. - oldlibs="$output_objdir/$libname.$libext $oldlibs" - build_libtool_libs=convenience - build_old_libs=yes - fi - - test -n "$vinfo" && \ - func_warning "'-version-info/-version-number' is ignored for convenience libraries" - - test -n "$release" && \ - func_warning "'-release' is ignored for convenience libraries" - else - - # Parse the version information argument. - save_ifs=$IFS; IFS=: - set dummy $vinfo 0 0 0 - shift - IFS=$save_ifs - - test -n "$7" && \ - func_fatal_help "too many parameters to '-version-info'" - - # convert absolute version numbers to libtool ages - # this retains compatibility with .la files and attempts - # to make the code below a bit more comprehensible - - case $vinfo_number in - yes) - number_major=$1 - number_minor=$2 - number_revision=$3 - # - # There are really only two kinds -- those that - # use the current revision as the major version - # and those that subtract age and use age as - # a minor version. 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- *) - func_error "REVISION '$revision' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - case $age in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "AGE '$age' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - if test "$age" -gt "$current"; then - func_error "AGE '$age' is greater than the current interface number '$current'" - func_fatal_error "'$vinfo' is not valid version information" - fi - - # Calculate the version variables. - major= - versuffix= - verstring= - case $version_type in - none) ;; - - darwin) - # Like Linux, but with the current version available in - # verstring for coding it into the library header - func_arith $current - $age - major=.$func_arith_result - versuffix=$major.$age.$revision - # Darwin ld doesn't like 0 for these options... - func_arith $current + 1 - minor_current=$func_arith_result - xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" - # On Darwin other compilers - case $CC in - nagfor*) - verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - ;; 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then - major= - case $version_type in - darwin) - # we can't check for "0.0" in archive_cmds due to quoting - # problems, so we reset it completely - verstring= - ;; - *) - verstring=0.0 - ;; - esac - if test no = "$need_version"; then - versuffix= - else - versuffix=.0.0 - fi - fi - - # Remove version info from name if versioning should be avoided - if test yes,no = "$avoid_version,$need_version"; then - major= - versuffix= - verstring= - fi - - # Check to see if the archive will have undefined symbols. - if test yes = "$allow_undefined"; then - if test unsupported = "$allow_undefined_flag"; then - if test yes = "$build_old_libs"; then - func_warning "undefined symbols not allowed in $host shared libraries; building static only" - build_libtool_libs=no - else - func_fatal_error "can't build $host shared library unless -no-undefined is specified" - fi - fi - else - # Don't allow undefined symbols. - allow_undefined_flag=$no_undefined_flag - fi - - fi - - func_generate_dlsyms "$libname" "$libname" : - func_append libobjs " $symfileobj" - test " " = "$libobjs" && libobjs= - - if test relink != "$opt_mode"; then - # Remove our outputs, but don't remove object files since they - # may have been created when compiling PIC objects. - removelist= - tempremovelist=`$ECHO "$output_objdir/*"` - for p in $tempremovelist; do - case $p in - *.$objext | *.gcno) - ;; - $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) - if test -n "$precious_files_regex"; then - if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 - then - continue - fi - fi - func_append removelist " $p" - ;; - *) ;; - esac - done - test -n "$removelist" && \ - func_show_eval "${RM}r \$removelist" - fi - - # Now set the variables for building old libraries. - if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then - func_append oldlibs " $output_objdir/$libname.$libext" - - # Transform .lo files to .o files. - oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` - fi - - # Eliminate all temporary directories. - #for path in $notinst_path; do - # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` - # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` - # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` - #done - - if test -n "$xrpath"; then - # If the user specified any rpath flags, then add them. - temp_xrpath= - for libdir in $xrpath; do - func_replace_sysroot "$libdir" - func_append temp_xrpath " -R$func_replace_sysroot_result" - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then - dependency_libs="$temp_xrpath $dependency_libs" - fi - fi - - # Make sure dlfiles contains only unique files that won't be dlpreopened - old_dlfiles=$dlfiles - dlfiles= - for lib in $old_dlfiles; do - case " $dlprefiles $dlfiles " in - *" $lib "*) ;; - *) func_append dlfiles " $lib" ;; - esac - done - - # Make sure dlprefiles contains only unique files - old_dlprefiles=$dlprefiles - dlprefiles= - for lib in $old_dlprefiles; 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - else - echo "*** The inter-library dependencies that have been dropped here will be" - echo "*** automatically added whenever a program is linked with this library" - echo "*** or is declared to -dlopen it." - - if test no = "$allow_undefined"; then - echo - echo "*** Since this library must not contain undefined symbols," - echo "*** because either the platform does not support them or" - echo "*** it was explicitly requested with -no-undefined," - echo "*** libtool will only create a static version of it." - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - fi - fi - # Done checking deplibs! - deplibs=$newdeplibs - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - case $host in - *-*-darwin*) - newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; - esac - - # move library search paths that coincide with paths to not yet - # installed libraries to the beginning of the library search list - new_libs= - for path in $notinst_path; do - case " $new_libs " in - *" -L$path/$objdir "*) ;; - *) - case " $deplibs " in - *" -L$path/$objdir "*) - func_append new_libs " -L$path/$objdir" ;; - esac - ;; - esac - done - for deplib in $deplibs; do - case $deplib in - -L*) - case " $new_libs " in - *" $deplib "*) ;; - *) func_append new_libs " $deplib" ;; - esac - ;; - *) func_append new_libs " $deplib" ;; - esac - done - deplibs=$new_libs - - # All the library-specific variables (install_libdir is set above). - library_names= - old_library= - dlname= - - # Test again, we may have decided not to build it any more - if test yes = "$build_libtool_libs"; then - # Remove $wl instances when linking with ld. - # FIXME: should test the right _cmds variable. - case $archive_cmds in - *\$LD\ *) wl= ;; - esac - if test yes = "$hardcode_into_libs"; then - # Hardcode the library paths - hardcode_libdirs= - dep_rpath= - rpath=$finalize_rpath - test relink = "$opt_mode" || rpath=$compile_rpath$rpath - for libdir in $rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - func_replace_sysroot "$libdir" - libdir=$func_replace_sysroot_result - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append dep_rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" - fi - if test -n "$runpath_var" && test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" - fi - test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" - fi - - shlibpath=$finalize_shlibpath - test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath - if test -n "$shlibpath"; then - eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" - fi - - # Get the real and link names of the library. - eval shared_ext=\"$shrext_cmds\" - eval library_names=\"$library_names_spec\" - set dummy $library_names - shift - realname=$1 - shift - - if test -n "$soname_spec"; then - eval soname=\"$soname_spec\" - else - soname=$realname - fi - if test -z "$dlname"; then - dlname=$soname - fi - - lib=$output_objdir/$realname - linknames= - for link - do - func_append linknames " $link" - done - - # Use standard objects if they are pic - test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` - test "X$libobjs" = "X " && libobjs= - - delfiles= - if test -n "$export_symbols" && test -n "$include_expsyms"; then - $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" - export_symbols=$output_objdir/$libname.uexp - func_append delfiles " $export_symbols" - fi - - orig_export_symbols= - case $host_os in - cygwin* | mingw* | cegcc*) - if test -n "$export_symbols" && test -z "$export_symbols_regex"; then - # exporting using user supplied symfile - func_dll_def_p "$export_symbols" || { - # and it's NOT already a .def file. Must figure out - # which of the given symbols are data symbols and tag - # them as such. So, trigger use of export_symbols_cmds. - # export_symbols gets reassigned inside the "prepare - # the list of exported symbols" if statement, so the - # include_expsyms logic still works. - orig_export_symbols=$export_symbols - export_symbols= - always_export_symbols=yes - } - fi - ;; - esac - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then - func_verbose "generating symbol list for '$libname.la'" - export_symbols=$output_objdir/$libname.exp - $opt_dry_run || $RM $export_symbols - cmds=$export_symbols_cmds - save_ifs=$IFS; IFS='~' - for cmd1 in $cmds; do - IFS=$save_ifs - # Take the normal branch if the nm_file_list_spec branch - # doesn't work or if tool conversion is not needed. - case $nm_file_list_spec~$to_tool_file_cmd in - *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) - try_normal_branch=yes - eval cmd=\"$cmd1\" - func_len " $cmd" - len=$func_len_result - ;; - *) - try_normal_branch=no - ;; - esac - if test yes = "$try_normal_branch" \ - && { test "$len" -lt "$max_cmd_len" \ - || test "$max_cmd_len" -le -1; } - then - func_show_eval "$cmd" 'exit $?' - skipped_export=false - elif test -n "$nm_file_list_spec"; then - func_basename "$output" - output_la=$func_basename_result - save_libobjs=$libobjs - save_output=$output - output=$output_objdir/$output_la.nm - func_to_tool_file "$output" - libobjs=$nm_file_list_spec$func_to_tool_file_result - func_append delfiles " $output" - func_verbose "creating $NM input file list: $output" - for obj in $save_libobjs; do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" - done > "$output" - eval cmd=\"$cmd1\" - func_show_eval "$cmd" 'exit $?' - output=$save_output - libobjs=$save_libobjs - skipped_export=false - else - # The command line is too long to execute in one step. - func_verbose "using reloadable object file for export list..." - skipped_export=: - # Break out early, otherwise skipped_export may be - # set to false by a later but shorter cmd. - break - fi - done - IFS=$save_ifs - if test -n "$export_symbols_regex" && test : != "$skipped_export"; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - fi - - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols=$export_symbols - test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test : != "$skipped_export" && test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for '$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands, which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - - tmp_deplibs= - for test_deplib in $deplibs; do - case " $convenience " in - *" $test_deplib "*) ;; - *) - func_append tmp_deplibs " $test_deplib" - ;; - esac - done - deplibs=$tmp_deplibs - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec" && - test yes = "$compiler_needs_object" && - test -z "$libobjs"; then - # extract the archives, so we have objects to list. - # TODO: could optimize this to just extract one archive. - whole_archive_flag_spec= - fi - if test -n "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - else - gentop=$output_objdir/${outputname}x - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - fi - - if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then - eval flag=\"$thread_safe_flag_spec\" - func_append linker_flags " $flag" - fi - - # Make a backup of the uninstalled library when relinking - if test relink = "$opt_mode"; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? - fi - - # Do each of the archive commands. - if test yes = "$module" && test -n "$module_cmds"; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - eval test_cmds=\"$module_expsym_cmds\" - cmds=$module_expsym_cmds - else - eval test_cmds=\"$module_cmds\" - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - eval test_cmds=\"$archive_expsym_cmds\" - cmds=$archive_expsym_cmds - else - eval test_cmds=\"$archive_cmds\" - cmds=$archive_cmds - fi - fi - - if test : != "$skipped_export" && - func_len " $test_cmds" && - len=$func_len_result && - test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then - : - else - # The command line is too long to link in one step, link piecewise - # or, if using GNU ld and skipped_export is not :, use a linker - # script. - - # Save the value of $output and $libobjs because we want to - # use them later. If we have whole_archive_flag_spec, we - # want to use save_libobjs as it was before - # whole_archive_flag_spec was expanded, because we can't - # assume the linker understands whole_archive_flag_spec. - # This may have to be revisited, in case too many - # convenience libraries get linked in and end up exceeding - # the spec. - if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - fi - save_output=$output - func_basename "$output" - output_la=$func_basename_result - - # Clear the reloadable object creation command queue and - # initialize k to one. - test_cmds= - concat_cmds= - objlist= - last_robj= - k=1 - - if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then - output=$output_objdir/$output_la.lnkscript - func_verbose "creating GNU ld script: $output" - echo 'INPUT (' > $output - for obj in $save_libobjs - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - echo ')' >> $output - func_append delfiles " $output" - func_to_tool_file "$output" - output=$func_to_tool_file_result - elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then - output=$output_objdir/$output_la.lnk - func_verbose "creating linker input file list: $output" - : > $output - set x $save_libobjs - shift - firstobj= - if test yes = "$compiler_needs_object"; then - firstobj="$1 " - shift - fi - for obj - do - func_to_tool_file "$obj" - $ECHO "$func_to_tool_file_result" >> $output - done - func_append delfiles " $output" - func_to_tool_file "$output" - output=$firstobj\"$file_list_spec$func_to_tool_file_result\" - else - if test -n "$save_libobjs"; then - func_verbose "creating reloadable object files..." - output=$output_objdir/$output_la-$k.$objext - eval test_cmds=\"$reload_cmds\" - func_len " $test_cmds" - len0=$func_len_result - len=$len0 - - # Loop over the list of objects to be linked. - for obj in $save_libobjs - do - func_len " $obj" - func_arith $len + $func_len_result - len=$func_arith_result - if test -z "$objlist" || - test "$len" -lt "$max_cmd_len"; then - func_append objlist " $obj" - else - # The command $test_cmds is almost too long, add a - # command to the queue. - if test 1 -eq "$k"; then - # The first file doesn't have a previous command to add. - reload_objs=$objlist - eval concat_cmds=\"$reload_cmds\" - else - # All subsequent reloadable object files will link in - # the last one created. - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" - fi - last_robj=$output_objdir/$output_la-$k.$objext - func_arith $k + 1 - k=$func_arith_result - output=$output_objdir/$output_la-$k.$objext - objlist=" $obj" - func_len " $last_robj" - func_arith $len0 + $func_len_result - len=$func_arith_result - fi - done - # Handle the remaining objects by creating one last - # reloadable object file. All subsequent reloadable object - # files will link in the last one created. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds$reload_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - func_append delfiles " $output" - - else - output= - fi - - ${skipped_export-false} && { - func_verbose "generating symbol list for '$libname.la'" - export_symbols=$output_objdir/$libname.exp - $opt_dry_run || $RM $export_symbols - libobjs=$output - # Append the command to create the export file. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - } - - test -n "$save_libobjs" && - func_verbose "creating a temporary reloadable object file: $output" - - # Loop through the commands generated above and execute them. - save_ifs=$IFS; IFS='~' - for cmd in $concat_cmds; do - IFS=$save_ifs - $opt_quiet || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test relink = "$opt_mode"; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS=$save_ifs - - if test -n "$export_symbols_regex" && ${skipped_export-false}; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - - ${skipped_export-false} && { - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols=$export_symbols - test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for '$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands, which not all seds can handle. GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - } - - libobjs=$output - # Restore the value of output. - output=$save_output - - if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - fi - # Expand the library linking commands again to reset the - # value of $libobjs for piecewise linking. - - # Do each of the archive commands. - if test yes = "$module" && test -n "$module_cmds"; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - cmds=$module_expsym_cmds - else - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - cmds=$archive_expsym_cmds - else - cmds=$archive_cmds - fi - fi - fi - - if test -n "$delfiles"; then - # Append the command to remove temporary files to $cmds. - eval cmds=\"\$cmds~\$RM $delfiles\" - fi - - # Add any objects from preloaded convenience libraries - if test -n "$dlprefiles"; then - gentop=$output_objdir/${outputname}x - func_append generated " $gentop" - - func_extract_archives $gentop $dlprefiles - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - - save_ifs=$IFS; IFS='~' - for cmd in $cmds; do - IFS=$sp$nl - eval cmd=\"$cmd\" - IFS=$save_ifs - $opt_quiet || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test relink = "$opt_mode"; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS=$save_ifs - - # Restore the uninstalled library and exit - if test relink = "$opt_mode"; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? - - if test -n "$convenience"; then - if test -z "$whole_archive_flag_spec"; then - func_show_eval '${RM}r "$gentop"' - fi - fi - - exit $EXIT_SUCCESS - fi - - # Create links to the real library. - for linkname in $linknames; do - if test "$realname" != "$linkname"; then - func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' - fi - done - - # If -module or -export-dynamic was specified, set the dlname. - if test yes = "$module" || test yes = "$export_dynamic"; then - # On all known operating systems, these are identical. - dlname=$soname - fi - fi - ;; - - obj) - if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then - func_warning "'-dlopen' is ignored for objects" - fi - - case " $deplibs" in - *\ -l* | *\ -L*) - func_warning "'-l' and '-L' are ignored for objects" ;; - esac - - test -n "$rpath" && \ - func_warning "'-rpath' is ignored for objects" - - test -n "$xrpath" && \ - func_warning "'-R' is ignored for objects" - - test -n "$vinfo" && \ - func_warning "'-version-info' is ignored for objects" - - test -n "$release" && \ - func_warning "'-release' is ignored for objects" - - case $output in - *.lo) - test -n "$objs$old_deplibs" && \ - func_fatal_error "cannot build library object '$output' from non-libtool objects" - - libobj=$output - func_lo2o "$libobj" - obj=$func_lo2o_result - ;; - *) - libobj= - obj=$output - ;; - esac - - # Delete the old objects. - $opt_dry_run || $RM $obj $libobj - - # Objects from convenience libraries. This assumes - # single-version convenience libraries. Whenever we create - # different ones for PIC/non-PIC, this we'll have to duplicate - # the extraction. - reload_conv_objs= - gentop= - # if reload_cmds runs $LD directly, get rid of -Wl from - # whole_archive_flag_spec and hope we can get by with turning comma - # into space. - case $reload_cmds in - *\$LD[\ \$]*) wl= ;; - esac - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec"; then - eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" - test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` - reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags - else - gentop=$output_objdir/${obj}x - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - reload_conv_objs="$reload_objs $func_extract_archives_result" - fi - fi - - # If we're not building shared, we need to use non_pic_objs - test yes = "$build_libtool_libs" || libobjs=$non_pic_objects - - # Create the old-style object. - reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs - - output=$obj - func_execute_cmds "$reload_cmds" 'exit $?' - - # Exit if we aren't doing a library object file. - if test -z "$libobj"; then - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - fi - - test yes = "$build_libtool_libs" || { - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - # Create an invalid libtool object if no PIC, so that we don't - # accidentally link it into a program. - # $show "echo timestamp > $libobj" - # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? - exit $EXIT_SUCCESS - } - - if test -n "$pic_flag" || test default != "$pic_mode"; then - # Only do commands if we really have different PIC objects. - reload_objs="$libobjs $reload_conv_objs" - output=$libobj - func_execute_cmds "$reload_cmds" 'exit $?' - fi - - if test -n "$gentop"; then - func_show_eval '${RM}r "$gentop"' - fi - - exit $EXIT_SUCCESS - ;; - - prog) - case $host in - *cygwin*) func_stripname '' '.exe' "$output" - output=$func_stripname_result.exe;; - esac - test -n "$vinfo" && \ - func_warning "'-version-info' is ignored for programs" - - test -n "$release" && \ - func_warning "'-release' is ignored for programs" - - $preload \ - && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ - && func_warning "'LT_INIT([dlopen])' not used. 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then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - compile_rpath=$rpath - - rpath= - hardcode_libdirs= - for libdir in $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$finalize_perm_rpath " in - *" $libdir "*) ;; - *) func_append finalize_perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - finalize_rpath=$rpath - - if test -n "$libobjs" && test yes = "$build_old_libs"; 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then - # We should set the runpath_var. - rpath= - for dir in $finalize_perm_rpath; do - func_append rpath "$dir:" - done - finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " - fi - fi - - if test yes = "$no_install"; then - # We don't need to create a wrapper script. - link_command=$compile_var$compile_command$compile_rpath - # Replace the output file specification. - link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` - # Delete the old output file. - $opt_dry_run || $RM $output - # Link the executable and exit - func_show_eval "$link_command" 'exit $?' - - if test -n "$postlink_cmds"; then - func_to_tool_file "$output" - postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` - func_execute_cmds "$postlink_cmds" 'exit $?' - fi - - exit $EXIT_SUCCESS - fi - - case $hardcode_action,$fast_install in - relink,*) - # Fast installation is not supported - link_command=$compile_var$compile_command$compile_rpath - relink_command=$finalize_var$finalize_command$finalize_rpath - - func_warning "this platform does not like uninstalled shared libraries" - func_warning "'$output' will be relinked during installation" - ;; 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then - AC_DEFINE(THUNDER_SUPPORT,1,[Support ThunderScan 4-bit RLE algorithm]) -fi - -HAVE_NEXT=yes - -AC_ARG_ENABLE(next, - AS_HELP_STRING([--disable-next], - [disable support for NeXT 2-bit RLE algorithm]), - [HAVE_NEXT=$enableval], [HAVE_NEXT=yes]) - -if test "$HAVE_NEXT" = "yes" ; then - AC_DEFINE(NEXT_SUPPORT,1,[Support NeXT 2-bit RLE algorithm]) -fi - -AC_ARG_ENABLE(logluv, - AS_HELP_STRING([--disable-logluv], - [disable support for LogLuv high dynamic range encoding]), - [HAVE_LOGLUV=$enableval], [HAVE_LOGLUV=yes]) - -if test "$HAVE_LOGLUV" = "yes" ; then - AC_DEFINE(LOGLUV_SUPPORT,1,[Support LogLuv high dynamic range encoding]) -fi - -dnl --------------------------------------------------------------------------- -dnl Switch on/off support for Microsoft Document Imaging -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(mdi, - AS_HELP_STRING([--disable-mdi], - [disable support for Microsoft Document Imaging]), - [HAVE_MDI=$enableval], [HAVE_MDI=yes]) - -if test "$HAVE_MDI" = "yes" ; then - AC_DEFINE(MDI_SUPPORT,1,[Support Microsoft Document Imaging format]) -fi - -dnl --------------------------------------------------------------------------- -dnl Check for ZLIB. -dnl --------------------------------------------------------------------------- - -HAVE_ZLIB=no - -AC_ARG_ENABLE(zlib, - AS_HELP_STRING([--disable-zlib], - [disable Zlib usage (required for Deflate compression, enabled by default)]),,) -AC_ARG_WITH(zlib-include-dir, - AS_HELP_STRING([--with-zlib-include-dir=DIR], - [location of Zlib headers]),,) -AC_ARG_WITH(zlib-lib-dir, - AS_HELP_STRING([--with-zlib-lib-dir=DIR], - [location of Zlib library binary]),,) - -if test "x$enable_zlib" != "xno" ; then - - if test "x$with_zlib_lib_dir" != "x" ; then - LDFLAGS="-L$with_zlib_lib_dir $LDFLAGS" - fi - - AC_CHECK_LIB(z, inflateEnd, [zlib_lib=yes], [zlib_lib=no],) - if test "$zlib_lib" = "no" -a "x$with_zlib_lib_dir" != "x"; then - AC_MSG_ERROR([Zlib library not found at $with_zlib_lib_dir]) - fi - - if test "x$with_zlib_include_dir" != "x" ; then - CPPFLAGS="-I$with_zlib_include_dir $CPPFLAGS" - fi - AC_CHECK_HEADER(zlib.h, [zlib_h=yes], [zlib_h=no]) - if test "$zlib_h" = "no" -a "x$with_zlib_include_dir" != "x" ; then - AC_MSG_ERROR([Zlib headers not found at $with_zlib_include_dir]) - fi - - if test "$zlib_lib" = "yes" -a "$zlib_h" = "yes" ; then - HAVE_ZLIB=yes - fi - -fi - -if test "$HAVE_ZLIB" = "yes" ; then - AC_DEFINE(ZIP_SUPPORT,1,[Support Deflate compression]) - LIBS="-lz $LIBS" - tiff_libs_private="-lz ${tiff_libs_private}" - - if test "$HAVE_RPATH" = "yes" -a "x$with_zlib_lib_dir" != "x" ; then - LIBDIR="-R $with_zlib_lib_dir $LIBDIR" - fi - -fi - -dnl --------------------------------------------------------------------------- -dnl Check for Pixar log-format algorithm. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(pixarlog, - AS_HELP_STRING([--disable-pixarlog], - [disable support for Pixar log-format algorithm (requires Zlib)]), - [HAVE_PIXARLOG=$enableval], [HAVE_PIXARLOG=yes]) - -if test "$HAVE_ZLIB" = "yes" -a "$HAVE_PIXARLOG" = "yes" ; then - AC_DEFINE(PIXARLOG_SUPPORT, 1, - [Support Pixar log-format algorithm (requires Zlib)]) -else - HAVE_PIXARLOG=no -fi - -dnl --------------------------------------------------------------------------- -dnl Check for JPEG. -dnl --------------------------------------------------------------------------- - -HAVE_JPEG=no - -AC_ARG_ENABLE(jpeg, - AS_HELP_STRING([--disable-jpeg], - [disable IJG JPEG library usage (required for JPEG compression, enabled by default)]),,) -AC_ARG_WITH(jpeg-include-dir, - AS_HELP_STRING([--with-jpeg-include-dir=DIR], - [location of IJG JPEG library headers]),,) -AC_ARG_WITH(jpeg-lib-dir, - AS_HELP_STRING([--with-jpeg-lib-dir=DIR], - [location of IJG JPEG library binary]),,) - -if test "x$enable_jpeg" != "xno" ; then - - if test "x$with_jpeg_lib_dir" != "x" ; then - LDFLAGS="-L$with_jpeg_lib_dir $LDFLAGS" - - fi - - AC_CHECK_LIB(jpeg, jpeg_read_scanlines, [jpeg_lib=yes], [jpeg_lib=no],) - if test "$jpeg_lib" = "no" -a "x$with_jpeg_lib_dir" != "x" ; then - AC_MSG_ERROR([IJG JPEG library not found at $with_jpeg_lib_dir]) - fi - - if test "x$with_jpeg_include_dir" != "x" ; then - CPPFLAGS="-I$with_jpeg_include_dir $CPPFLAGS" - fi - AC_CHECK_HEADER(jpeglib.h, [jpeg_h=yes], [jpeg_h=no]) - if test "$jpeg_h" = "no" -a "x$with_jpeg_include_dir" != "x" ; then - AC_MSG_ERROR([IJG JPEG library headers not found at $with_jpeg_include_dir]) - fi - - if test "$jpeg_lib" = "yes" -a "$jpeg_h" = "yes" ; then - HAVE_JPEG=yes - fi - -fi - -if test "$HAVE_JPEG" = "yes" ; then - AC_DEFINE(JPEG_SUPPORT,1,[Support JPEG compression (requires IJG JPEG library)]) - LIBS="-ljpeg $LIBS" - tiff_libs_private="-ljpeg ${tiff_libs_private}" - - if test "$HAVE_RPATH" = "yes" -a "x$with_jpeg_lib_dir" != "x" ; then - LIBDIR="-R $with_jpeg_lib_dir $LIBDIR" - fi - -fi - -dnl --------------------------------------------------------------------------- -dnl Check for Old JPEG. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(old-jpeg, - AS_HELP_STRING([--disable-old-jpeg], - [disable support for Old JPEG compresson (read-only, enabled by default)]), - [HAVE_OJPEG=${enableval}], [HAVE_OJPEG=yes]) - -if test "$HAVE_JPEG" = "yes" -a "$HAVE_OJPEG" = "yes" ; then - AC_DEFINE(OJPEG_SUPPORT, 1, - [Support Old JPEG compresson (read-only)]) -else - HAVE_OJPEG=no -fi - -dnl --------------------------------------------------------------------------- -dnl Check for JBIG-KIT. -dnl --------------------------------------------------------------------------- - -HAVE_JBIG=no - -AC_ARG_ENABLE(jbig, - AS_HELP_STRING([--disable-jbig], - [disable JBIG-KIT usage (required for ISO JBIG compression, enabled by default)]),,) -AC_ARG_WITH(jbig-include-dir, - AS_HELP_STRING([--with-jbig-include-dir=DIR], - [location of JBIG-KIT headers]),,) -AC_ARG_WITH(jbig-lib-dir, - AS_HELP_STRING([--with-jbig-lib-dir=DIR], - [location of JBIG-KIT library binary]),,) - -if test "x$enable_jbig" != "xno" ; then - - if test "x$with_jbig_lib_dir" != "x" ; then - LDFLAGS="-L$with_jbig_lib_dir $LDFLAGS" - - fi - - AC_CHECK_LIB(jbig, jbg_dec_init, [jbig_lib=yes], [jbig_lib=no],) - if test "$jbig_lib" = "no" -a "x$with_jbig_lib_dir" != "x" ; then - AC_MSG_ERROR([JBIG-KIT library not found at $with_jbig_lib_dir]) - fi - - if test "x$with_jbig_include_dir" != "x" ; then - CPPFLAGS="-I$with_jbig_include_dir $CPPFLAGS" - fi - AC_CHECK_HEADER(jbig.h, [jbig_h=yes], [jbig_h=no]) - if test "$jbig_h" = "no" -a "x$with_jbig_include_dir" != "x" ; then - AC_MSG_ERROR([JBIG-KIT library headers not found at $with_jbig_include_dir]) - fi - - if test "$jbig_lib" = "yes" -a "$jbig_h" = "yes" ; then - HAVE_JBIG=yes - fi - -fi - -if test "$HAVE_JBIG" = "yes" ; then - AC_DEFINE(JBIG_SUPPORT,1,[Support ISO JBIG compression (requires JBIG-KIT library)]) - LIBS="-ljbig $LIBS" - tiff_libs_private="-ljbig ${tiff_libs_private}" - - if test "$HAVE_RPATH" = "yes" -a "x$with_jbig_lib_dir" != "x" ; then - LIBDIR="-R $with_jbig_lib_dir $LIBDIR" - fi - - # Older versions of jbigkit lack jbg_newlen - AC_CHECK_FUNCS([jbg_newlen]) - -fi - -dnl --------------------------------------------------------------------------- -dnl Check for liblzma2. -dnl --------------------------------------------------------------------------- - -HAVE_LZMA=no - -AC_ARG_ENABLE(lzma, - AS_HELP_STRING([--disable-lzma], - [disable liblzma usage (required for LZMA2 compression, enabled by default)]),,) -AC_ARG_WITH(lzma-include-dir, - AS_HELP_STRING([--with-lzma-include-dir=DIR], - [location of liblzma headers]),,) -AC_ARG_WITH(lzma-lib-dir, - AS_HELP_STRING([--with-lzma-lib-dir=DIR], - [location of liblzma library binary]),,) - -if test "x$enable_lzma" != "xno" ; then - - if test "x$with_lzma_lib_dir" != "x" ; then - LDFLAGS="-L$with_lzma_lib_dir $LDFLAGS" - fi - - AC_CHECK_LIB(lzma, lzma_code, [lzma_lib=yes], [lzma_lib=no],) - if test "$lzma_lib" = "no" -a "x$with_lzma_lib_dir" != "x"; then - AC_MSG_ERROR([lzma library not found at $with_lzma_lib_dir]) - fi - - if test "x$with_lzma_include_dir" != "x" ; then - CPPFLAGS="-I$with_lzma_include_dir $CPPFLAGS" - fi - AC_CHECK_HEADER(lzma.h, [lzma_h=yes], [lzma_h=no]) - if test "$lzma_h" = "no" -a "x$with_lzma_include_dir" != "x" ; then - AC_MSG_ERROR([Liblzma headers not found at $with_lzma_include_dir]) - fi - - if test "$lzma_lib" = "yes" -a "$lzma_h" = "yes" ; then - HAVE_LZMA=yes - fi - -fi - -if test "$HAVE_LZMA" = "yes" ; then - AC_DEFINE(LZMA_SUPPORT,1,[Support LZMA2 compression]) - LIBS="-llzma $LIBS" - tiff_libs_private="-llzma ${tiff_libs_private}" - - if test "$HAVE_RPATH" = "yes" -a "x$with_lzma_lib_dir" != "x" ; then - LIBDIR="-R $with_lzma_lib_dir $LIBDIR" - fi - -fi - -dnl --------------------------------------------------------------------------- -dnl Should 8/12 bit jpeg mode be enabled? -dnl --------------------------------------------------------------------------- - -HAVE_JPEG12=no - -AC_ARG_ENABLE(jpeg12, - AS_HELP_STRING([--enable-jpeg12], - [enable libjpeg 8/12bit dual mode]),,) -AC_ARG_WITH(jpeg12-include-dir, - AS_HELP_STRING([--with-jpeg12-include-dir=DIR], - [location of libjpeg 12bit headers]),,) -AC_ARG_WITH(jpeg12-lib, - AS_HELP_STRING([--with-jpeg12-lib=LIBRARY], - [path to libjpeg 12bit library]),,) - -if test "x$enable_jpeg12" == "xyes" ; then - - if test "x$with_jpeg12_lib" != "x" ; then - LIBS="$with_jpeg12_lib $LIBS" - fi - - HAVE_JPEG12=yes - - AC_DEFINE(JPEG_DUAL_MODE_8_12,1,[8/12 bit libjpeg dual mode enabled]) - if test "x$with_jpeg12_include_dir" != "x" ; then - AC_DEFINE_UNQUOTED(LIBJPEG_12_PATH,"$with_jpeg12_include_dir/jpeglib.h",[12bit libjpeg primary include file with path]) - fi -fi - - -dnl --------------------------------------------------------------------------- -dnl Check for C++. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(cxx, - AS_HELP_STRING([--enable-cxx], - [enable C++ stream API building (requires C++ compiler)]), - [HAVE_CXX=$enableval], [HAVE_CXX=yes]) - -if test "$HAVE_CXX" = "yes" ; then - AC_DEFINE(CXX_SUPPORT, 1, [Support C++ stream API (requires C++ compiler)]) -else - HAVE_CXX=no -fi - -AM_CONDITIONAL(HAVE_CXX, test "$HAVE_CXX" = "yes") - -dnl --------------------------------------------------------------------------- -dnl Check for OpenGL and GLUT. -dnl --------------------------------------------------------------------------- - -HAVE_OPENGL=no - - -AC_PATH_XTRA - -dnl AX_CHECK_GL sets GL_CFLAGS & GL_LIBS. Also PTHREAD_LIBS, -dnl PTHREAD_CFLAGS, & PTHREAD_CC as a side-effect -AX_CHECK_GL - -dnl AX_CHECK_GLU sets GLU_CFLAGS & GLU_LIBS -AX_CHECK_GLU - -dnl AX_CHECK_GLUT sets GLUT_CFLAGS & GLUT_LIBS -AX_CHECK_GLUT - -if test "$no_x" != "yes" -a "$no_gl" != "yes" \ - -a "$no_glu" != "yes" -a "$no_glut" != "yes" ; then - HAVE_OPENGL=yes -fi - -AM_CONDITIONAL(HAVE_OPENGL, test "$HAVE_OPENGL" = "yes") - -dnl --------------------------------------------------------------------------- -dnl Check for Win32 IO: make sure we have windows.h but not cygwin -dnl this must be after the ogl test, since that looks for windows.h and we -dnl test it -dnl --------------------------------------------------------------------------- - -win32_io_ok=no -case "${host_os}" in - cygwin*) - ;; - *) - if test x"$ac_cv_header_windows_h" = xyes; then - win32_io_ok=yes - AC_DEFINE(USE_WIN32_FILEIO,1,[define to use win32 IO system]) - fi - ;; -esac -AM_CONDITIONAL([WIN32_IO], [test "$win32_io_ok" = yes]) - -dnl --------------------------------------------------------------------------- -dnl Check for X Athena Widgets -dnl --------------------------------------------------------------------------- - -dnl HAVE_XAW=no - -dnl ICE_FIND_ATHENA - -dnl if test "$no_xaw" != "yes" ; then -dnl HAVE_XAW=yes -dnl fi - -dnl AM_CONDITIONAL(HAVE_XAW, test "$HAVE_XAW" = "yes") - -dnl =========================================================================== -dnl ``Orthogonal Features'' -dnl =========================================================================== - -dnl --------------------------------------------------------------------------- -dnl Default handling of strip chopping support. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(strip-chopping, - AS_HELP_STRING([--disable-strip-chopping], - [disable support for strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of specified size to reduce memory usage)]), - [HAVE_STRIPCHOP=$enableval], [HAVE_STRIPCHOP=yes]) -AC_ARG_WITH(default-strip-size, - AS_HELP_STRING([--with-default-strip-size=SIZE], - [default size of the strip in bytes (when strip chopping enabled) [[default=8192]]]),,) - -if test "$HAVE_STRIPCHOP" = "yes" \ - -a "x$with_default_strip_size" != "xno"; then - AC_DEFINE(STRIPCHOP_DEFAULT,TIFF_STRIPCHOP,[Support strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of specified size to reduce memory usage)]) - - if test "x$with_default_strip_size" = "x" \ - -o "x$with_default_strip_size" = "xyes"; then - with_default_strip_size="8192" - fi - - AC_DEFINE_UNQUOTED(STRIP_SIZE_DEFAULT,$with_default_strip_size,[Default size of the strip in bytes (when strip chopping enabled)]) - -fi - -dnl --------------------------------------------------------------------------- -dnl Should we try to defer loading of strip/tile offsets and sizes to -dnl optimize directory scanning? These is an experimental feature for -dnl libtiff 4.0. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(defer-strile-load, - AS_HELP_STRING([--enable-defer-strile-load], - [enable deferred strip/tile offset/size loading (experimental)]), - [HAVE_DEFER_STRILE_LOAD=$enableval], [HAVE_DEFER_STRILE_LOAD=no]) - -if test "$HAVE_DEFER_STRILE_LOAD" = "yes" ; then - AC_DEFINE(DEFER_STRILE_LOAD,1,[enable deferred strip/tile offset/size loading (experimental)]) - -fi - -dnl --------------------------------------------------------------------------- -dnl Check for support of CHUNKY_STRIP_READ_SUPPORT, a mechanism to allowing -dnl reading large strips (usually one strip files) in chunks when using -dnl TIFFReadScanline(). This is an experimental feature in libtiff 4.0. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(chunky-strip-read, - AS_HELP_STRING([--enable-chunky-strip-read], - [enable reading large strips in chunks for TIFFReadScanline() (experimental)]), - [HAVE_CHUNKY_STRIP_READ=$enableval], [HAVE_CHUNKY_STRIP_READ=no]) - -if test "$HAVE_CHUNKY_STRIP_READ" = "yes" ; then - AC_DEFINE(CHUNKY_STRIP_READ_SUPPORT,1,[enable partial strip reading for large strips (experimental)]) - -fi - -dnl --------------------------------------------------------------------------- -dnl Default subifd support. -dnl --------------------------------------------------------------------------- -AC_DEFINE(SUBIFD_SUPPORT,1,[Enable SubIFD tag (330) support]) - -dnl --------------------------------------------------------------------------- -dnl Default handling of ASSOCALPHA support. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(extrasample-as-alpha, - AS_HELP_STRING([--disable-extrasample-as-alpha], - [the RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don't mark the alpha properly]), - [HAVE_EXTRASAMPLE_AS_ALPHA=$enableval], - [HAVE_EXTRASAMPLE_AS_ALPHA=yes]) - -if test "$HAVE_EXTRASAMPLE_AS_ALPHA" = "yes" ; then - AC_DEFINE(DEFAULT_EXTRASAMPLE_AS_ALPHA, 1, - [Treat extra sample as alpha (default enabled). The RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don't mark the alpha properly.]) -fi - -dnl --------------------------------------------------------------------------- -dnl Default handling of YCbCr subsampling support. -dnl See Bug 168 in Bugzilla, and JPEGFixupTestSubsampling() for details. -dnl --------------------------------------------------------------------------- - -AC_ARG_ENABLE(check-ycbcr-subsampling, - AS_HELP_STRING([--disable-check-ycbcr-subsampling], - [disable picking up YCbCr subsampling info from the JPEG data stream to support files lacking the tag]), - [CHECK_JPEG_YCBCR_SUBSAMPLING=$enableval], - [CHECK_JPEG_YCBCR_SUBSAMPLING=yes]) - -if test "$CHECK_JPEG_YCBCR_SUBSAMPLING" = "yes" ; then - AC_DEFINE(CHECK_JPEG_YCBCR_SUBSAMPLING, 1, - [Pick up YCbCr subsampling info from the JPEG data stream to support files lacking the tag (default enabled).]) -fi - -dnl --------------------------------------------------------------------------- - -AC_SUBST(LIBDIR) - -AC_CONFIG_HEADERS([libtiff/tif_config.h libtiff/tiffconf.h]) - -AC_CONFIG_FILES([Makefile \ - build/Makefile \ - contrib/Makefile \ - contrib/addtiffo/Makefile \ - contrib/dbs/Makefile \ - contrib/dbs/xtiff/Makefile \ - contrib/iptcutil/Makefile \ - contrib/mfs/Makefile \ - contrib/pds/Makefile \ - contrib/ras/Makefile \ - contrib/stream/Makefile \ - contrib/tags/Makefile \ - contrib/win_dib/Makefile \ - html/Makefile \ - html/images/Makefile \ - html/man/Makefile \ - libtiff-4.pc \ - libtiff/Makefile \ - man/Makefile \ - port/Makefile \ - test/Makefile \ - tools/Makefile]) -AC_OUTPUT - -dnl --------------------------------------------------------------------------- -dnl Display configuration status -dnl --------------------------------------------------------------------------- - -LOC_MSG() -LOC_MSG([Libtiff is now configured for ${host}]) -LOC_MSG() -LOC_MSG([ Installation directory: ${prefix}]) -LOC_MSG([ Documentation directory: ${LIBTIFF_DOCDIR}]) -LOC_MSG([ C compiler: ${CC} ${CFLAGS}]) -LOC_MSG([ C++ compiler: ${CXX} ${CXXFLAGS}]) -LOC_MSG([ Enable runtime linker paths: ${HAVE_RPATH}]) -LOC_MSG([ Enable linker symbol versioning: ${have_ld_version_script}]) -LOC_MSG([ Support Microsoft Document Imaging: ${HAVE_MDI}]) -LOC_MSG([ Use win32 IO: ${win32_io_ok}]) -LOC_MSG() -LOC_MSG([ Support for internal codecs:]) -LOC_MSG([ CCITT Group 3 & 4 algorithms: ${HAVE_CCITT}]) -LOC_MSG([ Macintosh PackBits algorithm: ${HAVE_PACKBITS}]) -LOC_MSG([ LZW algorithm: ${HAVE_LZW}]) -LOC_MSG([ ThunderScan 4-bit RLE algorithm: ${HAVE_THUNDER}]) -LOC_MSG([ NeXT 2-bit RLE algorithm: ${HAVE_NEXT}]) -LOC_MSG([ LogLuv high dynamic range encoding: ${HAVE_LOGLUV}]) -LOC_MSG() -LOC_MSG([ Support for external codecs:]) -LOC_MSG([ ZLIB support: ${HAVE_ZLIB}]) -LOC_MSG([ Pixar log-format algorithm: ${HAVE_PIXARLOG}]) -LOC_MSG([ JPEG support: ${HAVE_JPEG}]) -LOC_MSG([ Old JPEG support: ${HAVE_OJPEG}]) -LOC_MSG([ JPEG 8/12 bit dual mode: ${HAVE_JPEG12}]) -LOC_MSG([ ISO JBIG support: ${HAVE_JBIG}]) -LOC_MSG([ LZMA2 support: ${HAVE_LZMA}]) -LOC_MSG() -LOC_MSG([ C++ support: ${HAVE_CXX}]) -LOC_MSG() -dnl LOC_MSG([ X Athena Widgets support: ${HAVE_XAW}]) -LOC_MSG([ OpenGL support: ${HAVE_OPENGL}]) -LOC_MSG() - diff --git a/tiff/configure.com b/tiff/configure.com deleted file mode 100755 index 2267517..0000000 --- a/tiff/configure.com +++ /dev/null @@ -1,1357 +0,0 @@ -$! $Id: configure.com,v 1.3 2012-07-29 15:45:29 tgl Exp $ -$! -$! OpenVMS configure procedure for libtiff -$! (c) Alexey Chupahin 22-NOV-2007 -$! elvis_75@mail.ru -$! -$! Permission to use, copy, modify, distribute, and sell this software and -$! its documentation for any purpose is hereby granted without fee, provided -$! that (i) the above copyright notices and this permission notice appear in -$! all copies of the software and related documentation, and (ii) the names of -$! Sam Leffler and Silicon Graphics may not be used in any advertising or -$! publicity relating to the software without the specific, prior written -$! permission of Sam Leffler and Silicon Graphics. -$! -$! THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -$! EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -$! WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -$! -$! IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -$! ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -$! OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -$! WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -$! LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -$! OF THIS SOFTWARE. -$! -$! -$ SET NOON -$WRITE SYS$OUTPUT " " -$WRITE SYS$OUTPUT "Configuring libTIFF library" -$WRITE SYS$OUTPUT " " -$! Checking architecture -$DECC = F$SEARCH("SYS$SYSTEM:DECC$COMPILER.EXE") .NES. "" -$IF (.NOT. DECC) THEN $WRITE SYS$OUTPUT "BAD compiler" GOTO EXIT -$ IF F$GETSYI("ARCH_TYPE").EQ.1 THEN CPU = "VAX" -$ IF F$GETSYI("ARCH_TYPE").EQ.2 THEN CPU = "Alpha" -$ IF F$GETSYI("ARCH_TYPE").EQ.3 THEN CPU = "I64" -$ OS = F$GETSYI("VERSION") -$WRITE SYS$OUTPUT "Checking architecture ... ", CPU -$WRITE SYS$OUTPUT "Checking OS ... OpenVMS ",OS -$SHARED=0 -$IF ( (CPU.EQS."Alpha").OR.(CPU.EQS."I64") ) -$ THEN -$ SHARED=64 -$ ELSE -$ SHARED=32 -$ENDIF -$MMS = F$SEARCH("SYS$SYSTEM:MMS.EXE") .NES. "" -$MMK = F$TYPE(MMK) -$IF (MMS .OR. MMK.NES."") THEN GOTO TEST_LIBRARIES -$! I cant find any make tool -$GOTO EXIT -$! -$! -$TEST_LIBRARIES: -$! Setting as MAKE utility one of MMS or MMK. I prefer MMS. -$IF (MMK.NES."") THEN MAKE="MMK" -$IF (MMS) THEN MAKE="MMS" -$WRITE SYS$OUTPUT "Checking build utility ... ''MAKE'" -$WRITE SYS$OUTPUT " " -$! -$! -$IF (P1.EQS."STATIC").OR.(P1.EQS."static") THEN SHARED=0 -$! -$! -$!"Checking for strcasecmp " -$ DEFINE SYS$ERROR _NLA0: -$ DEFINE SYS$OUTPUT _NLA0: -$ CC/OBJECT=TEST.OBJ/INCLUDE=(ZLIB) SYS$INPUT - #include - #include - - int main() - { - if (strcasecmp("bla", "Bla")==0) exit(0); - else exit(2); - } -$! -$TMP = $STATUS -$DEASS SYS$ERROR -$DEAS SYS$OUTPUT -$IF (TMP .NE. %X10B90001) -$ THEN -$ HAVE_STRCASECMP=0 -$ GOTO NEXT1 -$ENDIF -$DEFINE SYS$ERROR _NLA0: -$DEFINE SYS$OUTPUT _NLA0: -$LINK/EXE=TEST TEST -$TMP = $STATUS -$DEAS SYS$ERROR -$DEAS SYS$OUTPUT -$!WRITE SYS$OUTPUT TMP -$IF (TMP .NE. %X10000001) -$ THEN -$ HAVE_STRCASECMP=0 -$ GOTO NEXT1 -$ENDIF -$! -$DEFINE SYS$ERROR _NLA0: -$DEFINE SYS$OUTPUT _NLA0: -$RUN TEST -$IF ($STATUS .NE. %X00000001) -$ THEN -$ HAVE_STRCASECMP=0 -$ ELSE -$ HAVE_STRCASECMP=1 -$ENDIF -$DEAS SYS$ERROR -$DEAS SYS$OUTPUT -$NEXT1: -$IF (HAVE_STRCASECMP.EQ.1) -$ THEN -$ WRITE SYS$OUTPUT "Checking for strcasecmp ... Yes" -$ ELSE -$ WRITE SYS$OUTPUT "Checking for strcasecmp ... No" -$ENDIF -$! -$! - -$!"Checking for lfind " -$ DEFINE SYS$ERROR _NLA0: -$ DEFINE SYS$OUTPUT _NLA0: -$ CC/OBJECT=TEST.OBJ/INCLUDE=(ZLIB) SYS$INPUT - #include - - int main() - { - lfind((const void *)key, (const void *)NULL, (size_t *)NULL, - (size_t) 0, NULL); - } -$! -$TMP = $STATUS -$DEASS SYS$ERROR -$DEAS SYS$OUTPUT -$IF (TMP .NE. %X10B90001) -$ THEN -$ HAVE_LFIND=0 -$ GOTO NEXT2 -$ENDIF -$DEFINE SYS$ERROR _NLA0: -$DEFINE SYS$OUTPUT _NLA0: -$LINK/EXE=TEST TEST -$TMP = $STATUS -$DEAS SYS$ERROR -$DEAS SYS$OUTPUT -$!WRITE SYS$OUTPUT TMP -$IF (TMP .NE. %X10000001) -$ THEN -$ HAVE_LFIND=0 -$ GOTO NEXT2 -$ ELSE -$ HAVE_LFIND=1 -$ENDIF -$! -$NEXT2: -$IF (HAVE_LFIND.EQ.1) -$ THEN -$ WRITE SYS$OUTPUT "Checking for lfind ... Yes" -$ ELSE -$ WRITE SYS$OUTPUT "Checking for lfind ... No" -$ENDIF -$! -$! -$!"Checking for correct zlib library " -$ DEFINE SYS$ERROR _NLA0: -$ DEFINE SYS$OUTPUT _NLA0: -$ CC/OBJECT=TEST.OBJ/INCLUDE=(ZLIB) SYS$INPUT - #include - #include - #include - int main() - { - printf("checking version zlib: %s\n",zlibVersion()); - } -$TMP = $STATUS -$DEASS SYS$ERROR -$DEAS SYS$OUTPUT -$!WRITE SYS$OUTPUT TMP -$IF (TMP .NE. %X10B90001) -$ THEN -$ HAVE_ZLIB=0 -$ GOTO EXIT -$ENDIF -$DEFINE SYS$ERROR _NLA0: -$DEFINE SYS$OUTPUT _NLA0: -$LINK/EXE=TEST TEST,ZLIB:LIBZ/LIB -$TMP = $STATUS -$DEAS SYS$ERROR -$DEAS SYS$OUTPUT -$!WRITE SYS$OUTPUT TMP -$IF (TMP .NE. %X10000001) -$ THEN -$ HAVE_ZLIB=0 -$ GOTO EXIT -$ ELSE -$ HAVE_ZLIB=1 -$ENDIF -$IF (HAVE_ZLIB.EQ.1) -$ THEN -$ WRITE SYS$OUTPUT "Checking for correct zlib library ... Yes" -$ ELSE -$ WRITE SYS$OUTPUT "Checking for correct zlib library ... No" -$ WRITE SYS$OUTPUT "This is fatal. 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Please download and install good library from fafner.dyndns.org/~alexey/libsdl/public.html" -$ GOTO EXIT -$ ENDIF -$! -$! -$! -$! Checking for X11 ... -$IF F$TRNLNM("DECW$INCLUDE") .NES. "" -$ THEN -$ WRITE SYS$OUTPUT "Checking for X11 ... Yes" -$ ELSE -$ WRITE SYS$OUTPUT "Checking for X11 ... No" -$ WRITE SYS$OUTPUT "This is fatal. 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"" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""This file setups all logicals needed. It should be execute before using LibTIFF "" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""Nice place to call it - LOGIN.COM "" " -$ WRITE OUT "$WRITE SYS$OUTPUT """" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""Using the library:"" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""CC/INC=TIFF ASCII_TAG.C"" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""LINK ASCII_TAG,TIFF:LIBTIFF/OPT"" " -$ WRITE OUT "$WRITE SYS$OUTPUT ""***************************************************************************** "" " -$CLOSE OUT -$! -$! DESCRIP.MMS in [.PORT] -$OBJ="dummy.obj" -$IF HAVE_STRCASECMP.NE.1 -$ THEN -$ OBJ=OBJ+",strcasecmp.obj" -$ENDIF -$IF HAVE_LFIND.NE.1 -$ THEN -$ OBJ=OBJ+",lfind.obj" -$ENDIF -$OPEN/WRITE OUT [.PORT]DESCRIP.MMS -$WRITE OUT "OBJ=",OBJ -$WRITE OUT "" -$WRITE OUT "LIBPORT.OLB : $(OBJ)" -$WRITE OUT " LIB/CREA LIBPORT $(OBJ)" -$WRITE OUT "" -$WRITE OUT "" -$WRITE OUT "dummy.obj : dummy.c" -$WRITE OUT " $(CC) $(CFLAGS) $(MMS$SOURCE) /OBJ=$(MMS$TARGET)" -$WRITE OUT "" -$WRITE OUT "" -$WRITE OUT "strcasecmp.obj : strcasecmp.c" -$WRITE OUT " $(CC) $(CFLAGS) $(MMS$SOURCE) /OBJ=$(MMS$TARGET)" -$WRITE OUT "" -$WRITE OUT "" -$WRITE OUT "lfind.obj : lfind.c" -$WRITE OUT " $(CC) $(CFLAGS) $(MMS$SOURCE) /OBJ=$(MMS$TARGET)" -$WRITE OUT "" -$WRITE OUT "" -$CLOSE OUT -$! -$! -$WRITE SYS$OUTPUT "Creating LIBTIFF$DEF.OPT" -$IF (SHARED.EQ.64) -$ THEN -$ COPY SYS$INPUT TIFF$DEF.OPT -SYMBOL_VECTOR= (- -TIFFOpen=PROCEDURE,- -TIFFGetVersion=PROCEDURE,- -TIFFCleanup=PROCEDURE,- -TIFFClose=PROCEDURE,- 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-$! -$! -$!copiing and patching TIFF_CONF.H, TIF_CONFIG.H -$! -$CURRENT = F$ENVIRONMENT (""DEFAULT"") -$CURRENT[F$LOCATE("]",CURRENT),9]:=".LIBTIFF]" -$WRITE SYS$OUTPUT "Creating TIFFCONF.H and TIF_CONFIG.H" -$COPY SYS$INPUT 'CURRENT'TIFFCONF.H -/* - Configuration defines for installed libtiff. - This file maintained for backward compatibility. 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Many - packages produce RGBA files but don't mark the alpha properly. */ -#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1 - -/* Pick up YCbCr subsampling info from the JPEG data stream to support files - lacking the tag (default enabled). */ -#define CHECK_JPEG_YCBCR_SUBSAMPLING 1 - -/* - * Feature support definitions. - * XXX: These macros are obsoleted. 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It doesn't need a full libtiff tree. -# -!INCLUDE ..\..\nmake.opt - -LIBTIFF_DIR = ..\..\libtiff -# -INCL = -I..\..\libtiff -LIBS = $(LIBTIFF_DIR)\libtiff.lib - -addtiffo: addtiffo.obj tif_overview.obj tif_ovrcache.obj - $(CC) $(CFLAGS) addtiffo.obj tif_overview.obj tif_ovrcache.obj \ - $(LIBS) /Feaddtiffo.exe - - -addtiffo.obj: addtiffo.c - $(CC) -c $(CFLAGS) addtiffo.c - -tif_overview.obj: tif_overview.c - $(CC) -c $(CFLAGS) tif_overview.c - -tif_ovrcache.obj: tif_ovrcache.c - $(CC) -c $(CFLAGS) tif_ovrcache.c - -clean: - -del *.obj - -del addtiffo.exe diff --git a/tiff/contrib/addtiffo/README b/tiff/contrib/addtiffo/README deleted file mode 100755 index a6ca45f..0000000 --- a/tiff/contrib/addtiffo/README +++ /dev/null @@ -1,142 +0,0 @@ - addtiffo 1.0 - ============ - -The addtiffo utility is used to add overview pyramids to an existing -TIFF or GeoTIFF file. Some applications can take advantage of these -overviews to accelerate overview display performance of large rasters. - -This release of addtiffo is primarily intended for compatibility testing -with applications, and to see if there is interest in a cleaner release -of the capability ... perhaps incorporation into the libtiff tools -distribution. - -Please feel free to contact me with questions, or problems. - -warmerda@home.com -http://home.gdal.org/~warmerda/ - - -Usage ------ - -Usage: addtiffo [-r {average/nearest} [-subifd] - tiff_filename [resolution_reductions] - -Example: - % addtiffo abc.tif 2 4 8 16 - -The numeric arguments are the list of reduction factors to -generate. In this example a 1/2, 1/4 1/8 and 1/16 - - - -Limitations ------------ - -See tif_overview.cpp for up to date details. - - o Currently only images with bits_per_sample of a multiple of eight - will work. - - o The code will attempt to use the same kind of compression, - photometric interpretation, and organization as the source image, but - it doesn't copy geotiff tags to the reduced resolution images. - - o Reduced resolution overviews for multi-sample files will currently - always be generated as PLANARCONFIG_SEPARATE. This could be fixed - reasonable easily if needed to improve compatibility with other - packages. Many don't properly support PLANARCONFIG_SEPARATE. - - o Overviews are always written as appended IFDs, rather than using the - ``tree of tree's'' approach using the SUBIFD tag. I wanted to implement - both, but it isn't currently easy to add a SUBIFD tag to an existing - main tiff IFD with libtiff. I hope to try this again later. - - -TIFF File Tags --------------- - -The results of running addtiffo on a 1024x1024 tiled greyscale file -with the arguments ``2 4 8 16'' is to add four additional TIFF directories -appended on the file with the SUBFILETYPE flag to 0x1 indicating the extra -items are reduced resolution images. - -The tiffinfo output of such a file might look like this: - -TIFF Directory at offset 0x118008 - Image Width: 1024 Image Length: 1024 - Tile Width: 256 Tile Length: 112 - Bits/Sample: 8 - Compression Scheme: none - Photometric Interpretation: min-is-black - Samples/Pixel: 1 - Planar Configuration: single image plane -TIFF Directory at offset 0x15e1d2 - Subfile Type: reduced-resolution image (1 = 0x1) - Image Width: 512 Image Length: 512 - Tile Width: 256 Tile Length: 112 - Bits/Sample: 8 - Compression Scheme: none - Photometric Interpretation: min-is-black - Samples/Pixel: 1 - Planar Configuration: separate image planes -TIFF Directory at offset 0x1732b8 - Subfile Type: reduced-resolution image (1 = 0x1) - Image Width: 256 Image Length: 256 - Tile Width: 256 Tile Length: 112 - Bits/Sample: 8 - Compression Scheme: none - Photometric Interpretation: min-is-black - Samples/Pixel: 1 - Planar Configuration: separate image planes -TIFF Directory at offset 0x17a366 - Subfile Type: reduced-resolution image (1 = 0x1) - Image Width: 128 Image Length: 128 - Tile Width: 128 Tile Length: 112 - Bits/Sample: 8 - Compression Scheme: none - Photometric Interpretation: min-is-black - Samples/Pixel: 1 - Planar Configuration: separate image planes -TIFF Directory at offset 0x17b40c - Subfile Type: reduced-resolution image (1 = 0x1) - Image Width: 64 Image Length: 64 - Tile Width: 64 Tile Length: 64 - Bits/Sample: 8 - Compression Scheme: none - Photometric Interpretation: min-is-black - Samples/Pixel: 1 - Planar Configuration: separate image planes - - -Building --------- - -You will need a C compiler. You will need to have libtiff already -built and installed. The provided Makefile should work on most Unix systems. -A similar file will be needed for Windows, but is not provided. - -The CFLAGS and LIBS macros in the Makefile will have to be updated to -point to the correct location of the libtiff include files, and library. - - -Credits -------- - - o Intergraph Corporation for partially funding the work. - - o Global Geomatics for partially funding reorganization of the overview - building ability as a separate utility. - - o Orrin Long, and Ed Grissom of Intergraph for explaining what needed to - be done. - - o Max Martinez of Erdas for his discussion of external overviews. - - o Atlantis Scientific who supported adding averaging, and some other - generalizations. - - o Frank Warmerdam for writing the bulk of the code. - - o Sam Leffler since this only exists because of his libtiff. - diff --git a/tiff/contrib/addtiffo/addtiffo.c b/tiff/contrib/addtiffo/addtiffo.c deleted file mode 100755 index d3920e2..0000000 --- a/tiff/contrib/addtiffo/addtiffo.c +++ /dev/null @@ -1,176 +0,0 @@ -/****************************************************************************** - * $Id: addtiffo.c,v 1.7 2010-06-08 18:55:15 bfriesen Exp $ - * - * Project: GeoTIFF Overview Builder - * Purpose: Mainline for building overviews in a TIFF file. - * Author: Frank Warmerdam, warmerdam@pobox.com - * - ****************************************************************************** - * Copyright (c) 1999, Frank Warmerdam - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - ****************************************************************************** - * - * $Log: addtiffo.c,v $ - * Revision 1.7 2010-06-08 18:55:15 bfriesen - * * contrib: Add an emacs formatting mode footer to all source files - * so that emacs can be effectively used. - * - * Revision 1.6 2005/12/16 05:59:55 fwarmerdam - * Major upgrade to support YCbCr subsampled jpeg images - * - * Revision 1.4 2004/09/21 13:31:23 dron - * Add missed include string.h. - * - * Revision 1.3 2000/04/18 22:48:31 warmerda - * Added support for averaging resampling - * - * Revision 1.2 2000/01/28 15:36:38 warmerda - * pass TIFF handle instead of filename to overview builder - * - * Revision 1.1 1999/08/17 01:47:59 warmerda - * New - * - * Revision 1.1 1999/03/12 17:46:32 warmerda - * New - * - * Revision 1.2 1999/02/11 22:27:12 warmerda - * Added multi-sample support - * - * Revision 1.1 1999/02/11 18:12:30 warmerda - * New - */ - -#include -#include -#include -#include "tiffio.h" - -void TIFFBuildOverviews( TIFF *, int, int *, int, const char *, - int (*)(double,void*), void * ); - -/************************************************************************/ -/* main() */ -/************************************************************************/ - -int main( int argc, char ** argv ) - -{ - int anOverviews[100]; /* TODO: un-hardwire array length, flexible allocate */ - int nOverviewCount = 0; - int bUseSubIFD = 0; - TIFF *hTIFF; - const char *pszResampling = "nearest"; - -/* -------------------------------------------------------------------- */ -/* Usage: */ -/* -------------------------------------------------------------------- */ - if( argc < 2 ) - { - printf( "Usage: addtiffo [-r {nearest,average,mode}]\n" - " tiff_filename [resolution_reductions]\n" - "\n" - "Example:\n" - " %% addtiffo abc.tif 2 4 8 16\n" ); - return( 1 ); - } - - while( argv[1][0] == '-' ) - { - if( strcmp(argv[1],"-subifd") == 0 ) - { - bUseSubIFD = 1; - argv++; - argc--; - } - else if( strcmp(argv[1],"-r") == 0 ) - { - argv += 2; - argc -= 2; - pszResampling = *argv; - } - else - { - fprintf( stderr, "Incorrect parameters\n" ); - return( 1 ); - } - } - - /* TODO: resampling mode parameter needs to be encoded in an integer from this point on */ - -/* -------------------------------------------------------------------- */ -/* Collect the user requested reduction factors. */ -/* -------------------------------------------------------------------- */ - while( nOverviewCount < argc - 2 && nOverviewCount < 100 ) - { - anOverviews[nOverviewCount] = atoi(argv[nOverviewCount+2]); - if( anOverviews[nOverviewCount] <= 0) - { - fprintf( stderr, "Incorrect parameters\n" ); - return(1); - } - nOverviewCount++; - } - -/* -------------------------------------------------------------------- */ -/* Default to four overview levels. It would be nicer if it */ -/* defaulted based on the size of the source image. */ -/* -------------------------------------------------------------------- */ - /* TODO: make it default based on the size of the source image */ - if( nOverviewCount == 0 ) - { - nOverviewCount = 4; - - anOverviews[0] = 2; - anOverviews[1] = 4; - anOverviews[2] = 8; - anOverviews[3] = 16; - } - -/* -------------------------------------------------------------------- */ -/* Build the overview. */ -/* -------------------------------------------------------------------- */ - hTIFF = TIFFOpen( argv[1], "r+" ); - if( hTIFF == NULL ) - { - fprintf( stderr, "TIFFOpen(%s) failed.\n", argv[1] ); - return( 1 ); - } - - TIFFBuildOverviews( hTIFF, nOverviewCount, anOverviews, bUseSubIFD, - pszResampling, NULL, NULL ); - - TIFFClose( hTIFF ); - -/* -------------------------------------------------------------------- */ -/* Optionally test for memory leaks. */ -/* -------------------------------------------------------------------- */ -#ifdef DBMALLOC - malloc_dump(1); -#endif - - return( 0 ); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/addtiffo/tif_overview.c b/tiff/contrib/addtiffo/tif_overview.c deleted file mode 100755 index 156c081..0000000 --- a/tiff/contrib/addtiffo/tif_overview.c +++ /dev/null @@ -1,899 +0,0 @@ -/****************************************************************************** - * tif_overview.c,v 1.9 2005/05/25 09:03:16 dron Exp - * - * Project: TIFF Overview Builder - * Purpose: Library function for building overviews in a TIFF file. - * Author: Frank Warmerdam, warmerdam@pobox.com - * - * Notes: - * o Currently only images with bits_per_sample of a multiple of eight - * will work. - * - * o The downsampler currently just takes the top left pixel from the - * source rectangle. Eventually sampling options of averaging, mode, and - * ``center pixel'' should be offered. - * - * o The code will attempt to use the same kind of compression, - * photometric interpretation, and organization as the source image, but - * it doesn't copy geotiff tags to the reduced resolution images. - * - * o Reduced resolution overviews for multi-sample files will currently - * always be generated as PLANARCONFIG_SEPARATE. This could be fixed - * reasonable easily if needed to improve compatibility with other - * packages. Many don't properly support PLANARCONFIG_SEPARATE. - * - ****************************************************************************** - * Copyright (c) 1999, Frank Warmerdam - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - ****************************************************************************** - */ - -/* TODO: update notes in header above */ - -#include -#include -#include -#include - -#include "tiffio.h" -#include "tif_ovrcache.h" - -#ifndef FALSE -# define FALSE 0 -# define TRUE 1 -#endif - -#ifndef MAX -# define MIN(a,b) ((ab) ? a : b) -#endif - -void TIFFBuildOverviews( TIFF *, int, int *, int, const char *, - int (*)(double,void*), void * ); - -/************************************************************************/ -/* TIFF_WriteOverview() */ -/* */ -/* Create a new directory, without any image data for an overview. */ -/* Returns offset of newly created overview directory, but the */ -/* current directory is reset to be the one in used when this */ -/* function is called. */ -/************************************************************************/ - -uint32 TIFF_WriteOverview( TIFF *hTIFF, uint32 nXSize, uint32 nYSize, - int nBitsPerPixel, int nPlanarConfig, int nSamples, - int nBlockXSize, int nBlockYSize, - int bTiled, int nCompressFlag, int nPhotometric, - int nSampleFormat, - unsigned short *panRed, - unsigned short *panGreen, - unsigned short *panBlue, - int bUseSubIFDs, - int nHorSubsampling, int nVerSubsampling ) - -{ - toff_t nBaseDirOffset; - toff_t nOffset; - - (void) bUseSubIFDs; - - nBaseDirOffset = TIFFCurrentDirOffset( hTIFF ); - - TIFFCreateDirectory( hTIFF ); - -/* -------------------------------------------------------------------- */ -/* Setup TIFF fields. */ -/* -------------------------------------------------------------------- */ - TIFFSetField( hTIFF, TIFFTAG_IMAGEWIDTH, nXSize ); - TIFFSetField( hTIFF, TIFFTAG_IMAGELENGTH, nYSize ); - if( nSamples == 1 ) - TIFFSetField( hTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG ); - else - TIFFSetField( hTIFF, TIFFTAG_PLANARCONFIG, nPlanarConfig ); - - TIFFSetField( hTIFF, TIFFTAG_BITSPERSAMPLE, nBitsPerPixel ); - TIFFSetField( hTIFF, TIFFTAG_SAMPLESPERPIXEL, nSamples ); - TIFFSetField( hTIFF, TIFFTAG_COMPRESSION, nCompressFlag ); - TIFFSetField( hTIFF, TIFFTAG_PHOTOMETRIC, nPhotometric ); - TIFFSetField( hTIFF, TIFFTAG_SAMPLEFORMAT, nSampleFormat ); - - if( bTiled ) - { - TIFFSetField( hTIFF, TIFFTAG_TILEWIDTH, nBlockXSize ); - TIFFSetField( hTIFF, TIFFTAG_TILELENGTH, nBlockYSize ); - } - else - TIFFSetField( hTIFF, TIFFTAG_ROWSPERSTRIP, nBlockYSize ); - - TIFFSetField( hTIFF, TIFFTAG_SUBFILETYPE, FILETYPE_REDUCEDIMAGE ); - - if( nPhotometric == PHOTOMETRIC_YCBCR || nPhotometric == PHOTOMETRIC_ITULAB ) - { - TIFFSetField( hTIFF, TIFFTAG_YCBCRSUBSAMPLING, nHorSubsampling, nVerSubsampling); - /* TODO: also write YCbCrPositioning and YCbCrCoefficients tag identical to source IFD */ - } - /* TODO: add command-line parameter for selecting jpeg compression quality - * that gets ignored when compression isn't jpeg */ - -/* -------------------------------------------------------------------- */ -/* Write color table if one is present. */ -/* -------------------------------------------------------------------- */ - if( panRed != NULL ) - { - TIFFSetField( hTIFF, TIFFTAG_COLORMAP, panRed, panGreen, panBlue ); - } - -/* -------------------------------------------------------------------- */ -/* Write directory, and return byte offset. */ -/* -------------------------------------------------------------------- */ - if( TIFFWriteCheck( hTIFF, bTiled, "TIFFBuildOverviews" ) == 0 ) - return 0; - - TIFFWriteDirectory( hTIFF ); - TIFFSetDirectory( hTIFF, (tdir_t) (TIFFNumberOfDirectories(hTIFF)-1) ); - - nOffset = TIFFCurrentDirOffset( hTIFF ); - - TIFFSetSubDirectory( hTIFF, nBaseDirOffset ); - - return nOffset; -} - -/************************************************************************/ -/* TIFF_GetSourceSamples() */ -/************************************************************************/ - -static void -TIFF_GetSourceSamples( double * padfSamples, unsigned char *pabySrc, - int nPixelBytes, int nSampleFormat, - uint32 nXSize, uint32 nYSize, - int nPixelOffset, int nLineOffset ) -{ - uint32 iXOff, iYOff; - int iSample; - - iSample = 0; - - for( iYOff = 0; iYOff < nYSize; iYOff++ ) - { - for( iXOff = 0; iXOff < nXSize; iXOff++ ) - { - unsigned char *pabyData; - - pabyData = pabySrc + iYOff * nLineOffset + iXOff * nPixelOffset; - - if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 1 ) - { - padfSamples[iSample++] = *pabyData; - } - else if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 2 ) - { - padfSamples[iSample++] = ((uint16 *) pabyData)[0]; - } - else if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 4 ) - { - padfSamples[iSample++] = ((uint32 *) pabyData)[0]; - } - else if( nSampleFormat == SAMPLEFORMAT_INT && nPixelBytes == 2 ) - { - padfSamples[iSample++] = ((int16 *) pabyData)[0]; - } - else if( nSampleFormat == SAMPLEFORMAT_INT && nPixelBytes == 32 ) - { - padfSamples[iSample++] = ((int32 *) pabyData)[0]; - } - else if( nSampleFormat == SAMPLEFORMAT_IEEEFP && nPixelBytes == 4 ) - { - padfSamples[iSample++] = ((float *) pabyData)[0]; - } - else if( nSampleFormat == SAMPLEFORMAT_IEEEFP && nPixelBytes == 8 ) - { - padfSamples[iSample++] = ((double *) pabyData)[0]; - } - } - } -} - -/************************************************************************/ -/* TIFF_SetSample() */ -/************************************************************************/ - -static void -TIFF_SetSample( unsigned char * pabyData, int nPixelBytes, int nSampleFormat, - double dfValue ) - -{ - if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 1 ) - { - *pabyData = (unsigned char) MAX(0,MIN(255,dfValue)); - } - else if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 2 ) - { - *((uint16 *)pabyData) = (uint16) MAX(0,MIN(65535,dfValue)); - } - else if( nSampleFormat == SAMPLEFORMAT_UINT && nPixelBytes == 4 ) - { - *((uint32 *)pabyData) = (uint32) dfValue; - } - else if( nSampleFormat == SAMPLEFORMAT_INT && nPixelBytes == 2 ) - { - *((int16 *)pabyData) = (int16) MAX(-32768,MIN(32767,dfValue)); - } - else if( nSampleFormat == SAMPLEFORMAT_INT && nPixelBytes == 32 ) - { - *((int32 *)pabyData) = (int32) dfValue; - } - else if( nSampleFormat == SAMPLEFORMAT_IEEEFP && nPixelBytes == 4 ) - { - *((float *)pabyData) = (float) dfValue; - } - else if( nSampleFormat == SAMPLEFORMAT_IEEEFP && nPixelBytes == 8 ) - { - *((double *)pabyData) = dfValue; - } -} - -/************************************************************************/ -/* TIFF_DownSample() */ -/* */ -/* Down sample a tile of full res data into a window of a tile */ -/* of downsampled data. */ -/************************************************************************/ - -static -void TIFF_DownSample( unsigned char *pabySrcTile, - uint32 nBlockXSize, uint32 nBlockYSize, - int nPixelSkewBits, int nBitsPerPixel, - unsigned char * pabyOTile, - uint32 nOBlockXSize, uint32 nOBlockYSize, - uint32 nTXOff, uint32 nTYOff, int nOMult, - int nSampleFormat, const char * pszResampling ) - -{ - uint32 i, j; - int k, nPixelBytes = (nBitsPerPixel) / 8; - int nPixelGroupBytes = (nBitsPerPixel+nPixelSkewBits)/8; - unsigned char *pabySrc, *pabyDst; - double *padfSamples; - - assert( nBitsPerPixel >= 8 ); - - padfSamples = (double *) malloc(sizeof(double) * nOMult * nOMult); - -/* ==================================================================== */ -/* Loop over scanline chunks to process, establishing where the */ -/* data is going. */ -/* ==================================================================== */ - for( j = 0; j*nOMult < nBlockYSize; j++ ) - { - if( j + nTYOff >= nOBlockYSize ) - break; - - pabyDst = pabyOTile + ((j+nTYOff)*nOBlockXSize + nTXOff) - * nPixelBytes * nPixelGroupBytes; - -/* -------------------------------------------------------------------- */ -/* Handler nearest resampling ... we don't even care about the */ -/* data type, we just do a bytewise copy. */ -/* -------------------------------------------------------------------- */ - if( strncmp(pszResampling,"nearest",4) == 0 - || strncmp(pszResampling,"NEAR",4) == 0 ) - { - pabySrc = pabySrcTile + j*nOMult*nBlockXSize * nPixelGroupBytes; - - for( i = 0; i*nOMult < nBlockXSize; i++ ) - { - if( i + nTXOff >= nOBlockXSize ) - break; - - /* - * For now use simple subsampling, from the top left corner - * of the source block of pixels. - */ - - for( k = 0; k < nPixelBytes; k++ ) - pabyDst[k] = pabySrc[k]; - - pabyDst += nPixelBytes * nPixelGroupBytes; - pabySrc += nOMult * nPixelGroupBytes; - } - } - -/* -------------------------------------------------------------------- */ -/* Handle the case of averaging. For this we also have to */ -/* handle each sample format we are concerned with. */ -/* -------------------------------------------------------------------- */ - else if( strncmp(pszResampling,"averag",6) == 0 - || strncmp(pszResampling,"AVERAG",6) == 0 ) - { - pabySrc = pabySrcTile + j*nOMult*nBlockXSize * nPixelGroupBytes; - - for( i = 0; i*nOMult < nBlockXSize; i++ ) - { - double dfTotal; - uint32 nXSize, nYSize, iSample; - - if( i + nTXOff >= nOBlockXSize ) - break; - - nXSize = MIN((uint32)nOMult,nBlockXSize-i); - nYSize = MIN((uint32)nOMult,nBlockYSize-j); - - TIFF_GetSourceSamples( padfSamples, pabySrc, - nPixelBytes, nSampleFormat, - nXSize, nYSize, - nPixelGroupBytes, - nPixelGroupBytes * nBlockXSize ); - - dfTotal = 0; - for( iSample = 0; iSample < nXSize*nYSize; iSample++ ) - { - dfTotal += padfSamples[iSample]; - } - - TIFF_SetSample( pabyDst, nPixelBytes, nSampleFormat, - dfTotal / (nXSize*nYSize) ); - - pabySrc += nOMult * nPixelGroupBytes; - pabyDst += nPixelBytes; - } - } - } - - free( padfSamples ); -} - -/************************************************************************/ -/* TIFF_DownSample_Subsampled() */ -/************************************************************************/ -static -void TIFF_DownSample_Subsampled( unsigned char *pabySrcTile, int nSample, - uint32 nBlockXSize, uint32 nBlockYSize, - unsigned char * pabyOTile, - uint32 nOBlockXSize, uint32 nOBlockYSize, - uint32 nTXOff, uint32 nTYOff, int nOMult, - const char *pszResampling, - int nHorSubsampling, int nVerSubsampling ) -{ - /* TODO: test with variety of subsampling values, and incovinient tile/strip sizes */ - int nSampleBlockSize; - int nSourceSampleRowSize; - int nDestSampleRowSize; - uint32 nSourceX, nSourceY; - uint32 nSourceXSec, nSourceYSec; - uint32 nSourceXSecEnd, nSourceYSecEnd; - uint32 nDestX, nDestY; - int nSampleOffsetInSampleBlock; - unsigned int nCummulator; - unsigned int nCummulatorCount; - - nSampleBlockSize = nHorSubsampling * nVerSubsampling + 2; - nSourceSampleRowSize = - ( ( nBlockXSize + nHorSubsampling - 1 ) / nHorSubsampling ) * nSampleBlockSize; - nDestSampleRowSize = - ( ( nOBlockXSize + nHorSubsampling - 1 ) / nHorSubsampling ) * nSampleBlockSize; - - if( strncmp(pszResampling,"nearest",4) == 0 - || strncmp(pszResampling,"NEAR",4) == 0 ) - { - if( nSample == 0 ) - { - for( nSourceY = 0, nDestY = nTYOff; - nSourceY < nBlockYSize; - nSourceY += nOMult, nDestY ++) - { - if( nDestY >= nOBlockYSize ) - break; - - for( nSourceX = 0, nDestX = nTXOff; - nSourceX < nBlockXSize; - nSourceX += nOMult, nDestX ++) - { - if( nDestX >= nOBlockXSize ) - break; - - * ( pabyOTile + ( nDestY / nVerSubsampling ) * nDestSampleRowSize - + ( nDestY % nVerSubsampling ) * nHorSubsampling - + ( nDestX / nHorSubsampling ) * nSampleBlockSize - + ( nDestX % nHorSubsampling ) ) = - * ( pabySrcTile + ( nSourceY / nVerSubsampling ) * nSourceSampleRowSize - + ( nSourceY % nVerSubsampling ) * nHorSubsampling - + ( nSourceX / nHorSubsampling ) * nSampleBlockSize - + ( nSourceX % nHorSubsampling ) ); - } - } - } - else - { - nSampleOffsetInSampleBlock = nHorSubsampling * nVerSubsampling + nSample - 1; - for( nSourceY = 0, nDestY = ( nTYOff / nVerSubsampling ); - nSourceY < ( nBlockYSize / nVerSubsampling ); - nSourceY += nOMult, nDestY ++) - { - if( nDestY*nVerSubsampling >= nOBlockYSize ) - break; - - for( nSourceX = 0, nDestX = ( nTXOff / nHorSubsampling ); - nSourceX < ( nBlockXSize / nHorSubsampling ); - nSourceX += nOMult, nDestX ++) - { - if( nDestX*nHorSubsampling >= nOBlockXSize ) - break; - - * ( pabyOTile + nDestY * nDestSampleRowSize - + nDestX * nSampleBlockSize - + nSampleOffsetInSampleBlock ) = - * ( pabySrcTile + nSourceY * nSourceSampleRowSize - + nSourceX * nSampleBlockSize - + nSampleOffsetInSampleBlock ); - } - } - } - } - else if( strncmp(pszResampling,"averag",6) == 0 - || strncmp(pszResampling,"AVERAG",6) == 0 ) - { - if( nSample == 0 ) - { - for( nSourceY = 0, nDestY = nTYOff; nSourceY < nBlockYSize; nSourceY += nOMult, nDestY ++) - { - if( nDestY >= nOBlockYSize ) - break; - - for( nSourceX = 0, nDestX = nTXOff; nSourceX < nBlockXSize; nSourceX += nOMult, nDestX ++) - { - if( nDestX >= nOBlockXSize ) - break; - - nSourceXSecEnd = nSourceX + nOMult; - if( nSourceXSecEnd > nBlockXSize ) - nSourceXSecEnd = nBlockXSize; - nSourceYSecEnd = nSourceY + nOMult; - if( nSourceYSecEnd > nBlockYSize ) - nSourceYSecEnd = nBlockYSize; - nCummulator = 0; - for( nSourceYSec = nSourceY; nSourceYSec < nSourceYSecEnd; nSourceYSec ++) - { - for( nSourceXSec = nSourceX; nSourceXSec < nSourceXSecEnd; nSourceXSec ++) - { - nCummulator += * ( pabySrcTile + ( nSourceYSec / nVerSubsampling ) * nSourceSampleRowSize - + ( nSourceYSec % nVerSubsampling ) * nHorSubsampling - + ( nSourceXSec / nHorSubsampling ) * nSampleBlockSize - + ( nSourceXSec % nHorSubsampling ) ); - } - } - nCummulatorCount = ( nSourceXSecEnd - nSourceX ) * ( nSourceYSecEnd - nSourceY ); - * ( pabyOTile + ( nDestY / nVerSubsampling ) * nDestSampleRowSize - + ( nDestY % nVerSubsampling ) * nHorSubsampling - + ( nDestX / nHorSubsampling ) * nSampleBlockSize - + ( nDestX % nHorSubsampling ) ) = - ( ( nCummulator + ( nCummulatorCount >> 1 ) ) / nCummulatorCount ); - } - } - } - else - { - nSampleOffsetInSampleBlock = nHorSubsampling * nVerSubsampling + nSample - 1; - for( nSourceY = 0, nDestY = ( nTYOff / nVerSubsampling ); nSourceY < ( nBlockYSize / nVerSubsampling ); - nSourceY += nOMult, nDestY ++) - { - if( nDestY*nVerSubsampling >= nOBlockYSize ) - break; - - for( nSourceX = 0, nDestX = ( nTXOff / nHorSubsampling ); nSourceX < ( nBlockXSize / nHorSubsampling ); - nSourceX += nOMult, nDestX ++) - { - if( nDestX*nHorSubsampling >= nOBlockXSize ) - break; - - nSourceXSecEnd = nSourceX + nOMult; - if( nSourceXSecEnd > ( nBlockXSize / nHorSubsampling ) ) - nSourceXSecEnd = ( nBlockXSize / nHorSubsampling ); - nSourceYSecEnd = nSourceY + nOMult; - if( nSourceYSecEnd > ( nBlockYSize / nVerSubsampling ) ) - nSourceYSecEnd = ( nBlockYSize / nVerSubsampling ); - nCummulator = 0; - for( nSourceYSec = nSourceY; nSourceYSec < nSourceYSecEnd; nSourceYSec ++) - { - for( nSourceXSec = nSourceX; nSourceXSec < nSourceXSecEnd; nSourceXSec ++) - { - nCummulator += * ( pabySrcTile + nSourceYSec * nSourceSampleRowSize - + nSourceXSec * nSampleBlockSize - + nSampleOffsetInSampleBlock ); - } - } - nCummulatorCount = ( nSourceXSecEnd - nSourceX ) * ( nSourceYSecEnd - nSourceY ); - * ( pabyOTile + nDestY * nDestSampleRowSize - + nDestX * nSampleBlockSize - + nSampleOffsetInSampleBlock ) = - ( ( nCummulator + ( nCummulatorCount >> 1 ) ) / nCummulatorCount ); - } - } - } - } -} - -/************************************************************************/ -/* TIFF_ProcessFullResBlock() */ -/* */ -/* Process one block of full res data, downsampling into each */ -/* of the overviews. */ -/************************************************************************/ - -void TIFF_ProcessFullResBlock( TIFF *hTIFF, int nPlanarConfig, - int bSubsampled, - int nHorSubsampling, int nVerSubsampling, - int nOverviews, int * panOvList, - int nBitsPerPixel, - int nSamples, TIFFOvrCache ** papoRawBIs, - uint32 nSXOff, uint32 nSYOff, - unsigned char *pabySrcTile, - uint32 nBlockXSize, uint32 nBlockYSize, - int nSampleFormat, const char * pszResampling ) - -{ - int iOverview, iSample; - - for( iSample = 0; iSample < nSamples; iSample++ ) - { - /* - * We have to read a tile/strip for each sample for - * PLANARCONFIG_SEPARATE. Otherwise, we just read all the samples - * at once when handling the first sample. - */ - if( nPlanarConfig == PLANARCONFIG_SEPARATE || iSample == 0 ) - { - if( TIFFIsTiled(hTIFF) ) - { - TIFFReadEncodedTile( hTIFF, - TIFFComputeTile(hTIFF, nSXOff, nSYOff, - 0, (tsample_t)iSample ), - pabySrcTile, - TIFFTileSize(hTIFF)); - } - else - { - TIFFReadEncodedStrip( hTIFF, - TIFFComputeStrip(hTIFF, nSYOff, - (tsample_t) iSample), - pabySrcTile, - TIFFStripSize(hTIFF) ); - } - } - - /* - * Loop over destination overview layers - */ - for( iOverview = 0; iOverview < nOverviews; iOverview++ ) - { - TIFFOvrCache *poRBI = papoRawBIs[iOverview]; - unsigned char *pabyOTile; - uint32 nTXOff, nTYOff, nOXOff, nOYOff, nOMult; - uint32 nOBlockXSize = poRBI->nBlockXSize; - uint32 nOBlockYSize = poRBI->nBlockYSize; - int nSkewBits, nSampleByteOffset; - - /* - * Fetch the destination overview tile - */ - nOMult = panOvList[iOverview]; - nOXOff = (nSXOff/nOMult) / nOBlockXSize; - nOYOff = (nSYOff/nOMult) / nOBlockYSize; - - if( bSubsampled ) - { - pabyOTile = TIFFGetOvrBlock_Subsampled( poRBI, nOXOff, nOYOff ); - - /* - * Establish the offset into this tile at which we should - * start placing data. - */ - nTXOff = (nSXOff - nOXOff*nOMult*nOBlockXSize) / nOMult; - nTYOff = (nSYOff - nOYOff*nOMult*nOBlockYSize) / nOMult; - - -#ifdef DBMALLOC - malloc_chain_check( 1 ); -#endif - TIFF_DownSample_Subsampled( pabySrcTile, iSample, - nBlockXSize, nBlockYSize, - pabyOTile, - poRBI->nBlockXSize, poRBI->nBlockYSize, - nTXOff, nTYOff, - nOMult, pszResampling, - nHorSubsampling, nVerSubsampling ); -#ifdef DBMALLOC - malloc_chain_check( 1 ); -#endif - - } - else - { - - pabyOTile = TIFFGetOvrBlock( poRBI, nOXOff, nOYOff, iSample ); - - /* - * Establish the offset into this tile at which we should - * start placing data. - */ - nTXOff = (nSXOff - nOXOff*nOMult*nOBlockXSize) / nOMult; - nTYOff = (nSYOff - nOYOff*nOMult*nOBlockYSize) / nOMult; - - /* - * Figure out the skew (extra space between ``our samples'') and - * the byte offset to the first sample. - */ - assert( (nBitsPerPixel % 8) == 0 ); - if( nPlanarConfig == PLANARCONFIG_SEPARATE ) - { - nSkewBits = 0; - nSampleByteOffset = 0; - } - else - { - nSkewBits = nBitsPerPixel * (nSamples-1); - nSampleByteOffset = (nBitsPerPixel/8) * iSample; - } - - /* - * Perform the downsampling. - */ -#ifdef DBMALLOC - malloc_chain_check( 1 ); -#endif - TIFF_DownSample( pabySrcTile + nSampleByteOffset, - nBlockXSize, nBlockYSize, - nSkewBits, nBitsPerPixel, pabyOTile, - poRBI->nBlockXSize, poRBI->nBlockYSize, - nTXOff, nTYOff, - nOMult, nSampleFormat, pszResampling ); -#ifdef DBMALLOC - malloc_chain_check( 1 ); -#endif - } - } - } -} - -/************************************************************************/ -/* TIFF_BuildOverviews() */ -/* */ -/* Build the requested list of overviews. Overviews are */ -/* maintained in a bunch of temporary files and then these are */ -/* written back to the TIFF file. Only one pass through the */ -/* source TIFF file is made for any number of output */ -/* overviews. */ -/************************************************************************/ - -void TIFFBuildOverviews( TIFF *hTIFF, int nOverviews, int * panOvList, - int bUseSubIFDs, const char *pszResampleMethod, - int (*pfnProgress)( double, void * ), - void * pProgressData ) - -{ - TIFFOvrCache **papoRawBIs; - uint32 nXSize, nYSize, nBlockXSize, nBlockYSize; - uint16 nBitsPerPixel, nPhotometric, nCompressFlag, nSamples, - nPlanarConfig, nSampleFormat; - int bSubsampled; - uint16 nHorSubsampling, nVerSubsampling; - int bTiled, nSXOff, nSYOff, i; - unsigned char *pabySrcTile; - uint16 *panRedMap, *panGreenMap, *panBlueMap; - TIFFErrorHandler pfnWarning; - - (void) pfnProgress; - (void) pProgressData; - -/* -------------------------------------------------------------------- */ -/* Get the base raster size. */ -/* -------------------------------------------------------------------- */ - TIFFGetField( hTIFF, TIFFTAG_IMAGEWIDTH, &nXSize ); - TIFFGetField( hTIFF, TIFFTAG_IMAGELENGTH, &nYSize ); - - TIFFGetField( hTIFF, TIFFTAG_BITSPERSAMPLE, &nBitsPerPixel ); - /* TODO: nBitsPerPixel seems misnomer and may need renaming to nBitsPerSample */ - TIFFGetField( hTIFF, TIFFTAG_SAMPLESPERPIXEL, &nSamples ); - TIFFGetFieldDefaulted( hTIFF, TIFFTAG_PLANARCONFIG, &nPlanarConfig ); - - TIFFGetFieldDefaulted( hTIFF, TIFFTAG_PHOTOMETRIC, &nPhotometric ); - TIFFGetFieldDefaulted( hTIFF, TIFFTAG_COMPRESSION, &nCompressFlag ); - TIFFGetFieldDefaulted( hTIFF, TIFFTAG_SAMPLEFORMAT, &nSampleFormat ); - - if( nPhotometric == PHOTOMETRIC_YCBCR || nPhotometric == PHOTOMETRIC_ITULAB ) - { - if( nBitsPerPixel != 8 || nSamples != 3 || nPlanarConfig != PLANARCONFIG_CONTIG || - nSampleFormat != SAMPLEFORMAT_UINT) - { - /* TODO: use of TIFFError is inconsistent with use of fprintf in addtiffo.c, sort out */ - TIFFErrorExt( TIFFClientdata(hTIFF), "TIFFBuildOverviews", - "File `%s' has an unsupported subsampling configuration.\n", - TIFFFileName(hTIFF) ); - /* If you need support for this particular flavor, please contact either - * Frank Warmerdam warmerdam@pobox.com - * Joris Van Damme info@awaresystems.be - */ - return; - } - bSubsampled = 1; - TIFFGetField( hTIFF, TIFFTAG_YCBCRSUBSAMPLING, &nHorSubsampling, &nVerSubsampling ); - /* TODO: find out if maybe TIFFGetFieldDefaulted is better choice for YCbCrSubsampling tag */ - } - else - { - if( nBitsPerPixel < 8 ) - { - /* TODO: use of TIFFError is inconsistent with use of fprintf in addtiffo.c, sort out */ - TIFFErrorExt( TIFFClientdata(hTIFF), "TIFFBuildOverviews", - "File `%s' has samples of %d bits per sample. Sample\n" - "sizes of less than 8 bits per sample are not supported.\n", - TIFFFileName(hTIFF), nBitsPerPixel ); - return; - } - bSubsampled = 0; - nHorSubsampling = 1; - nVerSubsampling = 1; - } - -/* -------------------------------------------------------------------- */ -/* Turn off warnings to avoid alot of repeated warnings while */ -/* rereading directories. */ -/* -------------------------------------------------------------------- */ - pfnWarning = TIFFSetWarningHandler( NULL ); - -/* -------------------------------------------------------------------- */ -/* Get the base raster block size. */ -/* -------------------------------------------------------------------- */ - if( TIFFGetField( hTIFF, TIFFTAG_ROWSPERSTRIP, &(nBlockYSize) ) ) - { - nBlockXSize = nXSize; - bTiled = FALSE; - } - else - { - TIFFGetField( hTIFF, TIFFTAG_TILEWIDTH, &nBlockXSize ); - TIFFGetField( hTIFF, TIFFTAG_TILELENGTH, &nBlockYSize ); - bTiled = TRUE; - } - -/* -------------------------------------------------------------------- */ -/* Capture the pallette if there is one. */ -/* -------------------------------------------------------------------- */ - if( TIFFGetField( hTIFF, TIFFTAG_COLORMAP, - &panRedMap, &panGreenMap, &panBlueMap ) ) - { - uint16 *panRed2, *panGreen2, *panBlue2; - int nColorCount = 1 << nBitsPerPixel; - - panRed2 = (uint16 *) _TIFFmalloc(2*nColorCount); - panGreen2 = (uint16 *) _TIFFmalloc(2*nColorCount); - panBlue2 = (uint16 *) _TIFFmalloc(2*nColorCount); - - memcpy( panRed2, panRedMap, 2 * nColorCount ); - memcpy( panGreen2, panGreenMap, 2 * nColorCount ); - memcpy( panBlue2, panBlueMap, 2 * nColorCount ); - - panRedMap = panRed2; - panGreenMap = panGreen2; - panBlueMap = panBlue2; - } - else - { - panRedMap = panGreenMap = panBlueMap = NULL; - } - -/* -------------------------------------------------------------------- */ -/* Initialize overviews. */ -/* -------------------------------------------------------------------- */ - papoRawBIs = (TIFFOvrCache **) _TIFFmalloc(nOverviews*sizeof(void*)); - - for( i = 0; i < nOverviews; i++ ) - { - uint32 nOXSize, nOYSize, nOBlockXSize, nOBlockYSize; - toff_t nDirOffset; - - nOXSize = (nXSize + panOvList[i] - 1) / panOvList[i]; - nOYSize = (nYSize + panOvList[i] - 1) / panOvList[i]; - - nOBlockXSize = MIN(nBlockXSize,nOXSize); - nOBlockYSize = MIN(nBlockYSize,nOYSize); - - if( bTiled ) - { - if( (nOBlockXSize % 16) != 0 ) - nOBlockXSize = nOBlockXSize + 16 - (nOBlockXSize % 16); - - if( (nOBlockYSize % 16) != 0 ) - nOBlockYSize = nOBlockYSize + 16 - (nOBlockYSize % 16); - } - - nDirOffset = TIFF_WriteOverview( hTIFF, nOXSize, nOYSize, - nBitsPerPixel, nPlanarConfig, - nSamples, nOBlockXSize, nOBlockYSize, - bTiled, nCompressFlag, nPhotometric, - nSampleFormat, - panRedMap, panGreenMap, panBlueMap, - bUseSubIFDs, - nHorSubsampling, nVerSubsampling ); - - papoRawBIs[i] = TIFFCreateOvrCache( hTIFF, nDirOffset ); - } - - if( panRedMap != NULL ) - { - _TIFFfree( panRedMap ); - _TIFFfree( panGreenMap ); - _TIFFfree( panBlueMap ); - } - -/* -------------------------------------------------------------------- */ -/* Allocate a buffer to hold a source block. */ -/* -------------------------------------------------------------------- */ - if( bTiled ) - pabySrcTile = (unsigned char *) _TIFFmalloc(TIFFTileSize(hTIFF)); - else - pabySrcTile = (unsigned char *) _TIFFmalloc(TIFFStripSize(hTIFF)); - -/* -------------------------------------------------------------------- */ -/* Loop over the source raster, applying data to the */ -/* destination raster. */ -/* -------------------------------------------------------------------- */ - for( nSYOff = 0; nSYOff < (int) nYSize; nSYOff += nBlockYSize ) - { - for( nSXOff = 0; nSXOff < (int) nXSize; nSXOff += nBlockXSize ) - { - /* - * Read and resample into the various overview images. - */ - - TIFF_ProcessFullResBlock( hTIFF, nPlanarConfig, - bSubsampled,nHorSubsampling,nVerSubsampling, - nOverviews, panOvList, - nBitsPerPixel, nSamples, papoRawBIs, - nSXOff, nSYOff, pabySrcTile, - nBlockXSize, nBlockYSize, - nSampleFormat, pszResampleMethod ); - } - } - - _TIFFfree( pabySrcTile ); - -/* -------------------------------------------------------------------- */ -/* Cleanup the rawblockedimage files. */ -/* -------------------------------------------------------------------- */ - for( i = 0; i < nOverviews; i++ ) - { - TIFFDestroyOvrCache( papoRawBIs[i] ); - } - - if( papoRawBIs != NULL ) - _TIFFfree( papoRawBIs ); - - TIFFSetWarningHandler( pfnWarning ); -} - - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/addtiffo/tif_ovrcache.c b/tiff/contrib/addtiffo/tif_ovrcache.c deleted file mode 100755 index e19483b..0000000 --- a/tiff/contrib/addtiffo/tif_ovrcache.c +++ /dev/null @@ -1,341 +0,0 @@ -/****************************************************************************** - * $Id: tif_ovrcache.c,v 1.9 2010-06-08 18:55:15 bfriesen Exp $ - * - * Project: TIFF Overview Builder - * Purpose: Library functions to maintain two rows of tiles or two strips - * of data for output overviews as an output cache. - * Author: Frank Warmerdam, warmerdam@pobox.com - * - ****************************************************************************** - * Copyright (c) 2000, Frank Warmerdam - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - ****************************************************************************** - */ - -#include "tiffiop.h" -#include "tif_ovrcache.h" -#include - -/************************************************************************/ -/* TIFFCreateOvrCache() */ -/* */ -/* Create an overview cache to hold two rows of blocks from an */ -/* existing TIFF directory. */ -/************************************************************************/ - -TIFFOvrCache *TIFFCreateOvrCache( TIFF *hTIFF, toff_t nDirOffset ) - -{ - TIFFOvrCache *psCache; - toff_t nBaseDirOffset; - - psCache = (TIFFOvrCache *) _TIFFmalloc(sizeof(TIFFOvrCache)); - psCache->nDirOffset = nDirOffset; - psCache->hTIFF = hTIFF; - -/* -------------------------------------------------------------------- */ -/* Get definition of this raster from the TIFF file itself. */ -/* -------------------------------------------------------------------- */ - nBaseDirOffset = TIFFCurrentDirOffset( psCache->hTIFF ); - TIFFSetSubDirectory( hTIFF, nDirOffset ); - - TIFFGetField( hTIFF, TIFFTAG_IMAGEWIDTH, &(psCache->nXSize) ); - TIFFGetField( hTIFF, TIFFTAG_IMAGELENGTH, &(psCache->nYSize) ); - - TIFFGetField( hTIFF, TIFFTAG_BITSPERSAMPLE, &(psCache->nBitsPerPixel) ); - TIFFGetField( hTIFF, TIFFTAG_SAMPLESPERPIXEL, &(psCache->nSamples) ); - TIFFGetField( hTIFF, TIFFTAG_PLANARCONFIG, &(psCache->nPlanarConfig) ); - - if( !TIFFIsTiled( hTIFF ) ) - { - TIFFGetField( hTIFF, TIFFTAG_ROWSPERSTRIP, &(psCache->nBlockYSize) ); - psCache->nBlockXSize = psCache->nXSize; - psCache->nBytesPerBlock = TIFFStripSize(hTIFF); - psCache->bTiled = FALSE; - } - else - { - TIFFGetField( hTIFF, TIFFTAG_TILEWIDTH, &(psCache->nBlockXSize) ); - TIFFGetField( hTIFF, TIFFTAG_TILELENGTH, &(psCache->nBlockYSize) ); - psCache->nBytesPerBlock = TIFFTileSize(hTIFF); - psCache->bTiled = TRUE; - } - -/* -------------------------------------------------------------------- */ -/* Compute some values from this. */ -/* -------------------------------------------------------------------- */ - - psCache->nBlocksPerRow = (psCache->nXSize + psCache->nBlockXSize - 1) - / psCache->nBlockXSize; - psCache->nBlocksPerColumn = (psCache->nYSize + psCache->nBlockYSize - 1) - / psCache->nBlockYSize; - - if (psCache->nPlanarConfig == PLANARCONFIG_SEPARATE) - psCache->nBytesPerRow = psCache->nBytesPerBlock - * psCache->nBlocksPerRow * psCache->nSamples; - else - psCache->nBytesPerRow = - psCache->nBytesPerBlock * psCache->nBlocksPerRow; - - -/* -------------------------------------------------------------------- */ -/* Allocate and initialize the data buffers. */ -/* -------------------------------------------------------------------- */ - - psCache->pabyRow1Blocks = - (unsigned char *) _TIFFmalloc(psCache->nBytesPerRow); - psCache->pabyRow2Blocks = - (unsigned char *) _TIFFmalloc(psCache->nBytesPerRow); - - if( psCache->pabyRow1Blocks == NULL - || psCache->pabyRow2Blocks == NULL ) - { - TIFFErrorExt( hTIFF->tif_clientdata, hTIFF->tif_name, - "Can't allocate memory for overview cache." ); - /* TODO: use of TIFFError is inconsistent with use of fprintf in addtiffo.c, sort out */ - return NULL; - } - - _TIFFmemset( psCache->pabyRow1Blocks, 0, psCache->nBytesPerRow ); - _TIFFmemset( psCache->pabyRow2Blocks, 0, psCache->nBytesPerRow ); - - psCache->nBlockOffset = 0; - - TIFFSetSubDirectory( psCache->hTIFF, nBaseDirOffset ); - - return psCache; -} - -/************************************************************************/ -/* TIFFWriteOvrRow() */ -/* */ -/* Write one entire row of blocks (row 1) to the tiff file, and */ -/* then rotate the block buffers, essentially moving things */ -/* down by one block. */ -/************************************************************************/ - -static void TIFFWriteOvrRow( TIFFOvrCache * psCache ) - -{ - int nRet, iTileX, iTileY = psCache->nBlockOffset; - unsigned char *pabyData; - toff_t nBaseDirOffset; - uint32 RowsInStrip; - -/* -------------------------------------------------------------------- */ -/* If the output cache is multi-byte per sample, and the file */ -/* being written to is of a different byte order than the current */ -/* platform, we will need to byte swap the data. */ -/* -------------------------------------------------------------------- */ - if( TIFFIsByteSwapped(psCache->hTIFF) ) - { - if( psCache->nBitsPerPixel == 16 ) - TIFFSwabArrayOfShort( (uint16 *) psCache->pabyRow1Blocks, - (psCache->nBytesPerBlock * psCache->nSamples) / 2 ); - - else if( psCache->nBitsPerPixel == 32 ) - TIFFSwabArrayOfLong( (uint32 *) psCache->pabyRow1Blocks, - (psCache->nBytesPerBlock * psCache->nSamples) / 4 ); - - else if( psCache->nBitsPerPixel == 64 ) - TIFFSwabArrayOfDouble( (double *) psCache->pabyRow1Blocks, - (psCache->nBytesPerBlock * psCache->nSamples) / 8 ); - } - -/* -------------------------------------------------------------------- */ -/* Record original directory position, so we can restore it at */ -/* end. */ -/* -------------------------------------------------------------------- */ - nBaseDirOffset = TIFFCurrentDirOffset( psCache->hTIFF ); - nRet = TIFFSetSubDirectory( psCache->hTIFF, psCache->nDirOffset ); - assert( nRet == 1 ); - -/* -------------------------------------------------------------------- */ -/* Write blocks to TIFF file. */ -/* -------------------------------------------------------------------- */ - for( iTileX = 0; iTileX < psCache->nBlocksPerRow; iTileX++ ) - { - int nTileID; - - if (psCache->nPlanarConfig == PLANARCONFIG_SEPARATE) - { - int iSample; - - for( iSample = 0; iSample < psCache->nSamples; iSample++ ) - { - pabyData = TIFFGetOvrBlock( psCache, iTileX, iTileY, iSample ); - - if( psCache->bTiled ) - { - nTileID = TIFFComputeTile( psCache->hTIFF, - iTileX * psCache->nBlockXSize, - iTileY * psCache->nBlockYSize, - 0, (tsample_t) iSample ); - TIFFWriteEncodedTile( psCache->hTIFF, nTileID, - pabyData, - TIFFTileSize(psCache->hTIFF) ); - } - else - { - nTileID = TIFFComputeStrip( psCache->hTIFF, - iTileY * psCache->nBlockYSize, - (tsample_t) iSample ); - RowsInStrip=psCache->nBlockYSize; - if ((iTileY+1)*psCache->nBlockYSize>psCache->nYSize) - RowsInStrip=psCache->nYSize-iTileY*psCache->nBlockYSize; - TIFFWriteEncodedStrip( psCache->hTIFF, nTileID, - pabyData, - TIFFVStripSize(psCache->hTIFF,RowsInStrip) ); - } - } - - } - else - { - pabyData = TIFFGetOvrBlock( psCache, iTileX, iTileY, 0 ); - - if( psCache->bTiled ) - { - nTileID = TIFFComputeTile( psCache->hTIFF, - iTileX * psCache->nBlockXSize, - iTileY * psCache->nBlockYSize, - 0, 0 ); - TIFFWriteEncodedTile( psCache->hTIFF, nTileID, - pabyData, - TIFFTileSize(psCache->hTIFF) ); - } - else - { - nTileID = TIFFComputeStrip( psCache->hTIFF, - iTileY * psCache->nBlockYSize, - 0 ); - RowsInStrip=psCache->nBlockYSize; - if ((iTileY+1)*psCache->nBlockYSize>psCache->nYSize) - RowsInStrip=psCache->nYSize-iTileY*psCache->nBlockYSize; - TIFFWriteEncodedStrip( psCache->hTIFF, nTileID, - pabyData, - TIFFVStripSize(psCache->hTIFF,RowsInStrip) ); - } - } - } - /* TODO: add checks on error status return of TIFFWriteEncodedTile and TIFFWriteEncodedStrip */ - -/* -------------------------------------------------------------------- */ -/* Rotate buffers. */ -/* -------------------------------------------------------------------- */ - pabyData = psCache->pabyRow1Blocks; - psCache->pabyRow1Blocks = psCache->pabyRow2Blocks; - psCache->pabyRow2Blocks = pabyData; - - _TIFFmemset( pabyData, 0, psCache->nBytesPerRow ); - - psCache->nBlockOffset++; - -/* -------------------------------------------------------------------- */ -/* Restore access to original directory. */ -/* -------------------------------------------------------------------- */ - TIFFFlush( psCache->hTIFF ); - /* TODO: add checks on error status return of TIFFFlush */ - TIFFSetSubDirectory( psCache->hTIFF, nBaseDirOffset ); - /* TODO: add checks on error status return of TIFFSetSubDirectory */ -} - -/************************************************************************/ -/* TIFFGetOvrBlock() */ -/************************************************************************/ - -/* TODO: make TIFF_Downsample handle iSample offset, so that we can - * do with a single TIFFGetOvrBlock and no longer need TIFFGetOvrBlock_Subsampled */ -unsigned char *TIFFGetOvrBlock( TIFFOvrCache *psCache, int iTileX, int iTileY, - int iSample ) - -{ - int nRowOffset; - - if( iTileY > psCache->nBlockOffset + 1 ) - TIFFWriteOvrRow( psCache ); - - assert( iTileX >= 0 && iTileX < psCache->nBlocksPerRow ); - assert( iTileY >= 0 && iTileY < psCache->nBlocksPerColumn ); - assert( iTileY >= psCache->nBlockOffset - && iTileY < psCache->nBlockOffset+2 ); - assert( iSample >= 0 && iSample < psCache->nSamples ); - - if (psCache->nPlanarConfig == PLANARCONFIG_SEPARATE) - nRowOffset = ((iTileX * psCache->nSamples) + iSample) - * psCache->nBytesPerBlock; - else - nRowOffset = iTileX * psCache->nBytesPerBlock + - (psCache->nBitsPerPixel + 7) / 8 * iSample; - - if( iTileY == psCache->nBlockOffset ) - return psCache->pabyRow1Blocks + nRowOffset; - else - return psCache->pabyRow2Blocks + nRowOffset; -} - -/************************************************************************/ -/* TIFFGetOvrBlock_Subsampled() */ -/************************************************************************/ - -unsigned char *TIFFGetOvrBlock_Subsampled( TIFFOvrCache *psCache, - int iTileX, int iTileY ) - -{ - int nRowOffset; - - if( iTileY > psCache->nBlockOffset + 1 ) - TIFFWriteOvrRow( psCache ); - - assert( iTileX >= 0 && iTileX < psCache->nBlocksPerRow ); - assert( iTileY >= 0 && iTileY < psCache->nBlocksPerColumn ); - assert( iTileY >= psCache->nBlockOffset - && iTileY < psCache->nBlockOffset+2 ); - assert( psCache->nPlanarConfig != PLANARCONFIG_SEPARATE ); - - nRowOffset = iTileX * psCache->nBytesPerBlock; - - if( iTileY == psCache->nBlockOffset ) - return psCache->pabyRow1Blocks + nRowOffset; - else - return psCache->pabyRow2Blocks + nRowOffset; -} - -/************************************************************************/ -/* TIFFDestroyOvrCache() */ -/************************************************************************/ - -void TIFFDestroyOvrCache( TIFFOvrCache * psCache ) - -{ - while( psCache->nBlockOffset < psCache->nBlocksPerColumn ) - TIFFWriteOvrRow( psCache ); - - _TIFFfree( psCache->pabyRow1Blocks ); - _TIFFfree( psCache->pabyRow2Blocks ); - _TIFFfree( psCache ); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/addtiffo/tif_ovrcache.h b/tiff/contrib/addtiffo/tif_ovrcache.h deleted file mode 100755 index 0ad1082..0000000 --- a/tiff/contrib/addtiffo/tif_ovrcache.h +++ /dev/null @@ -1,103 +0,0 @@ -/****************************************************************************** - * tif_ovrcache.h,v 1.3 2005/05/25 09:03:16 dron Exp - * - * Project: TIFF Overview Builder - * Purpose: Library functions to maintain two rows of tiles or two strips - * of data for output overviews as an output cache. - * Author: Frank Warmerdam, warmerdam@pobox.com - * - * This code could potentially be used by other applications wanting to - * manage a once-through write cache. - * - ****************************************************************************** - * Copyright (c) 2000, Frank Warmerdam - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - ****************************************************************************** - */ - -#ifndef TIF_OVRCACHE_H_INCLUDED -#define TIF_OVRCACHE_H_INCLUDED - -#include "tiffio.h" - -#if defined(__cplusplus) -extern "C" { -#endif - -typedef struct -{ - uint32 nXSize; - uint32 nYSize; - - uint16 nBitsPerPixel; - uint16 nSamples; - uint16 nPlanarConfig; - uint32 nBlockXSize; - uint32 nBlockYSize; - toff_t nBytesPerBlock; - toff_t nBytesPerRow; - - int nBlocksPerRow; - int nBlocksPerColumn; - - int nBlockOffset; /* what block is the first in papabyBlocks? */ - unsigned char *pabyRow1Blocks; - unsigned char *pabyRow2Blocks; - - toff_t nDirOffset; - TIFF *hTIFF; - int bTiled; - -} TIFFOvrCache; - -TIFFOvrCache *TIFFCreateOvrCache( TIFF *hTIFF, toff_t nDirOffset ); -unsigned char *TIFFGetOvrBlock( TIFFOvrCache *psCache, int iTileX, int iTileY, - int iSample ); -unsigned char *TIFFGetOvrBlock_Subsampled( TIFFOvrCache *psCache, int iTileX, int iTileY ); -void TIFFDestroyOvrCache( TIFFOvrCache * ); - -void TIFFBuildOverviews( TIFF *, int, int *, int, const char *, - int (*)(double,void*), void * ); - -void TIFF_ProcessFullResBlock( TIFF *, int, int, int, int, int, int *, int, - int, TIFFOvrCache **, uint32, uint32, - unsigned char *, uint32, uint32, - int, const char * ); - -uint32 TIFF_WriteOverview( TIFF *, uint32, uint32, int, int, int, int, int, - int, int, int, int, unsigned short *, - unsigned short *, unsigned short *, int, - int, int); - - - -#if defined(__cplusplus) -} -#endif - -#endif /* ndef TIF_OVRCACHE_H_INCLUDED */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/Makefile.am b/tiff/contrib/dbs/Makefile.am deleted file mode 100755 index 0787377..0000000 --- a/tiff/contrib/dbs/Makefile.am +++ /dev/null @@ -1,44 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -SUBDIRS = xtiff - -LIBTIFF = $(top_builddir)/libtiff/libtiff.la - -EXTRA_DIST = README - -noinst_PROGRAMS = tiff-bi tiff-grayscale tiff-palette tiff-rgb - -tiff_bi_SOURCES = tiff-bi.c -tiff_bi_LDADD = $(LIBTIFF) -tiff_grayscale_SOURCES = tiff-grayscale.c -tiff_grayscale_LDADD = $(LIBTIFF) -tiff_palette_SOURCES = tiff-palette.c -tiff_palette_LDADD = $(LIBTIFF) -tiff_rgb_SOURCES = tiff-rgb.c -tiff_rgb_LDADD = $(LIBTIFF) - -AM_CPPFLAGS = -I$(top_srcdir)/libtiff - diff --git a/tiff/contrib/dbs/Makefile.in b/tiff/contrib/dbs/Makefile.in deleted file mode 100755 index c78e9bf..0000000 --- a/tiff/contrib/dbs/Makefile.in +++ /dev/null @@ -1,794 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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Contact him directly if -you have questions/problems. - - Sam diff --git a/tiff/contrib/dbs/tiff-bi.c b/tiff/contrib/dbs/tiff-bi.c deleted file mode 100755 index 33f05c7..0000000 --- a/tiff/contrib/dbs/tiff-bi.c +++ /dev/null @@ -1,91 +0,0 @@ -/* $Id: tiff-bi.c,v 1.3 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * tiff-bi.c -- create a Class B (bilevel) TIFF file - * - * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts. - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of Digital not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#include -#include - -#include "tiffio.h" - -#define WIDTH 512 -#define HEIGHT WIDTH - -int main(int argc, char **argv) -{ - int i; - unsigned char * scan_line; - TIFF * tif; - - if (argc != 2) { - fprintf(stderr, "Usage: %s tiff-image\n", argv[0]); - return 0; - } - - if ((tif = TIFFOpen(argv[1], "w")) == NULL) { - fprintf(stderr, "can't open %s as a TIFF file\n", argv[1]); - return 0; - } - - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 1); - TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE); - - scan_line = (unsigned char *) malloc(WIDTH / 8); - - for (i = 0; i < (WIDTH / 8) / 2; i++) - scan_line[i] = 0; - - for (i = (WIDTH / 8) / 2; i < (WIDTH / 8); i++) - scan_line[i] = 255; - - for (i = 0; i < HEIGHT / 2; i++) - TIFFWriteScanline(tif, scan_line, i, 0); - - for (i = 0; i < (WIDTH / 8) / 2; i++) - scan_line[i] = 255; - - for (i = (WIDTH / 8) / 2; i < (WIDTH / 8); i++) - scan_line[i] = 0; - - for (i = HEIGHT / 2; i < HEIGHT; i++) - TIFFWriteScanline(tif, scan_line, i, 0); - - free(scan_line); - TIFFClose(tif); - return 0; -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/tiff-grayscale.c b/tiff/contrib/dbs/tiff-grayscale.c deleted file mode 100755 index 00b229f..0000000 --- a/tiff/contrib/dbs/tiff-grayscale.c +++ /dev/null @@ -1,147 +0,0 @@ -/* $Id: tiff-grayscale.c,v 1.6 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * tiff-grayscale.c -- create a Class G (grayscale) TIFF file - * with a gray response curve in linear optical density - * - * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts. - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of Digital not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#include -#include -#include -#include - -#include "tiffio.h" - -#define WIDTH 512 -#define HEIGHT WIDTH - -char * programName; -void Usage(); - -int main(int argc, char **argv) -{ - int bits_per_pixel = 8, cmsize, i, j, k, - gray_index, chunk_size = 32, nchunks = 16; - unsigned char * scan_line; - uint16 * gray; - float refblackwhite[2*1]; - TIFF * tif; - - programName = argv[0]; - - if (argc != 4) - Usage(); - - if (!strcmp(argv[1], "-depth")) - bits_per_pixel = atoi(argv[2]); - else - Usage(); - - switch (bits_per_pixel) { - case 8: - nchunks = 16; - chunk_size = 32; - break; - case 4: - nchunks = 4; - chunk_size = 128; - break; - case 2: - nchunks = 2; - chunk_size = 256; - break; - default: - Usage(); - } - - cmsize = nchunks * nchunks; - gray = (uint16 *) malloc(cmsize * sizeof(uint16)); - - gray[0] = 3000; - for (i = 1; i < cmsize; i++) - gray[i] = (uint16) (-log10((double) i / (cmsize - 1)) * 1000); - - refblackwhite[0] = 0.0; - refblackwhite[1] = (float)((1L< -#include -#include - -#include "tiffio.h" - -#define WIDTH 512 -#define HEIGHT WIDTH -#define SCALE(x) ((x) * 257L) - -char * programName; -void Usage(); - -int main(int argc, char **argv) -{ - int bits_per_pixel = 8, cmsize, i, j, k, - cmap_index, chunk_size = 32, nchunks = 16; - unsigned char * scan_line; - uint16 *red, *green, *blue; - TIFF * tif; - - programName = argv[0]; - - if (argc != 4) - Usage(); - - if (!strcmp(argv[1], "-depth")) - bits_per_pixel = atoi(argv[2]); - else - Usage(); - - switch (bits_per_pixel) { - case 8: - nchunks = 16; - chunk_size = 32; - break; - case 4: - nchunks = 4; - chunk_size = 128; - break; - case 2: - nchunks = 2; - chunk_size = 256; - break; - case 1: - nchunks = 2; - chunk_size = 256; - break; - default: - Usage(); - } - - if (bits_per_pixel != 1) { - cmsize = nchunks * nchunks; - } else { - cmsize = 2; - } - red = (uint16 *) malloc(cmsize * sizeof(uint16)); - green = (uint16 *) malloc(cmsize * sizeof(uint16)); - blue = (uint16 *) malloc(cmsize * sizeof(uint16)); - - switch (bits_per_pixel) { - case 8: - for (i = 0; i < cmsize; i++) { - if (i < 32) - red[i] = 0; - else if (i < 64) - red[i] = SCALE(36); - else if (i < 96) - red[i] = SCALE(73); - else if (i < 128) - red[i] = SCALE(109); - else if (i < 160) - red[i] = SCALE(146); - else if (i < 192) - red[i] = SCALE(182); - else if (i < 224) - red[i] = SCALE(219); - else if (i < 256) - red[i] = SCALE(255); - - if ((i % 32) < 4) - green[i] = 0; - else if (i < 8) - green[i] = SCALE(36); - else if ((i % 32) < 12) - green[i] = SCALE(73); - else if ((i % 32) < 16) - green[i] = SCALE(109); - else if ((i % 32) < 20) - green[i] = SCALE(146); - else if ((i % 32) < 24) - green[i] = SCALE(182); - else if ((i % 32) < 28) - green[i] = SCALE(219); - else if ((i % 32) < 32) - green[i] = SCALE(255); - - if ((i % 4) == 0) - blue[i] = SCALE(0); - else if ((i % 4) == 1) - blue[i] = SCALE(85); - else if ((i % 4) == 2) - blue[i] = SCALE(170); - else if ((i % 4) == 3) - blue[i] = SCALE(255); - } - break; - case 4: - red[0] = SCALE(255); - green[0] = 0; - blue[0] = 0; - - red[1] = 0; - green[1] = SCALE(255); - blue[1] = 0; - - red[2] = 0; - green[2] = 0; - blue[2] = SCALE(255); - - red[3] = SCALE(255); - green[3] = SCALE(255); - blue[3] = SCALE(255); - - red[4] = 0; - green[4] = SCALE(255); - blue[4] = SCALE(255); - - red[5] = SCALE(255); - green[5] = 0; - blue[5] = SCALE(255); - - red[6] = SCALE(255); - green[6] = SCALE(255); - blue[6] = 0; - - red[7] = 0; - green[7] = 0; - blue[7] = 0; - - red[8] = SCALE(176); - green[8] = SCALE(224); - blue[8] = SCALE(230); - red[9] = SCALE(100); - green[9] = SCALE(149); - blue[9] = SCALE(237); - red[10] = SCALE(46); - green[10] = SCALE(139); - blue[10] = SCALE(87); - red[11] = SCALE(160); - green[11] = SCALE(82); - blue[11] = SCALE(45); - red[12] = SCALE(238); - green[12] = SCALE(130); - blue[12] = SCALE(238); - red[13] = SCALE(176); - green[13] = SCALE(48); - blue[13] = SCALE(96); - red[14] = SCALE(50); - green[14] = SCALE(205); - blue[14] = SCALE(50); - red[15] = SCALE(240); - green[15] = SCALE(152); - blue[15] = SCALE(35); - break; - case 2: - red[0] = SCALE(255); - green[0] = 0; - blue[0] = 0; - - red[1] = 0; - green[1] = SCALE(255); - blue[1] = 0; - - red[2] = 0; - green[2] = 0; - blue[2] = SCALE(255); - red[3] = SCALE(255); - green[3] = SCALE(255); - blue[3] = SCALE(255); - break; - case 1: - red[0] = 0; - green[0] = 0; - blue[0] = 0; - - red[1] = SCALE(255); - green[1] = SCALE(255); - blue[1] = SCALE(255); - break; - } - - if ((tif = TIFFOpen(argv[3], "w")) == NULL) { - fprintf(stderr, "can't open %s as a TIFF file\n", argv[3]); - free(red);free(green);free(blue); - return 0; - } - - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bits_per_pixel); - TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_PALETTE); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE); - TIFFSetField(tif, TIFFTAG_COLORMAP, red, green, blue); - - scan_line = (unsigned char *) malloc(WIDTH / (8 / bits_per_pixel)); - - for (i = 0; i < HEIGHT; i++) { - for (j = 0, k = 0; j < WIDTH;) { - cmap_index = (j / chunk_size) + ((i / chunk_size) * nchunks); - - switch (bits_per_pixel) { - case 8: - scan_line[k++] = cmap_index; - j++; - break; - case 4: - scan_line[k++] = (cmap_index << 4) + cmap_index; - j += 2; - break; - case 2: - scan_line[k++] = (cmap_index << 6) + (cmap_index << 4) - + (cmap_index << 2) + cmap_index; - j += 4; - break; - case 1: - scan_line[k++] = - ((j / chunk_size) == (i / chunk_size)) ? 0x00 : 0xff; - j += 8; - break; - } - } - TIFFWriteScanline(tif, scan_line, i, 0); - } - - free(scan_line); - TIFFClose(tif); - return 0; -} - -void -Usage() -{ - fprintf(stderr, "Usage: %s -depth (8 | 4 | 2 | 1) tiff-image\n", programName); - exit(0); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/tiff-rgb.c b/tiff/contrib/dbs/tiff-rgb.c deleted file mode 100755 index bf90499..0000000 --- a/tiff/contrib/dbs/tiff-rgb.c +++ /dev/null @@ -1,201 +0,0 @@ -/* $Id: tiff-rgb.c,v 1.4 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * tiff-rgb.c -- create a 24-bit Class R (rgb) TIFF file - * - * Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts. - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of Digital not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#include -#include -#include -#include - -#include "tiffio.h" - -#define ROUND(x) (uint16) ((x) + 0.5) -#define CMSIZE 256 -#define WIDTH 525 -#define HEIGHT 512 -#define TIFF_GAMMA 2.2 - -void Usage(); -char * programName; - -int main(int argc, char **argv) -{ - char * input_file = NULL; - double image_gamma = TIFF_GAMMA; - int i, j; - TIFF * tif; - unsigned char * scan_line; - uint16 red[CMSIZE], green[CMSIZE], blue[CMSIZE]; - float refblackwhite[2*3]; - - programName = argv[0]; - - switch (argc) { - case 2: - image_gamma = TIFF_GAMMA; - input_file = argv[1]; - break; - case 4: - if (!strcmp(argv[1], "-gamma")) { - image_gamma = atof(argv[2]); - input_file = argv[3]; - } else - Usage(); - break; - default: - Usage(); - } - - for (i = 0; i < CMSIZE; i++) { - if (i == 0) - red[i] = green[i] = blue[i] = 0; - else { - red[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); - green[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); - blue[i] = ROUND((pow(i / 255.0, 1.0 / image_gamma) * 65535.0)); - } - } - refblackwhite[0] = 0.0; refblackwhite[1] = 255.0; - refblackwhite[2] = 0.0; refblackwhite[3] = 255.0; - refblackwhite[4] = 0.0; refblackwhite[5] = 255.0; - - if ((tif = TIFFOpen(input_file, "w")) == NULL) { - fprintf(stderr, "can't open %s as a TIFF file\n", input_file); - exit(0); - } - - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, WIDTH); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, HEIGHT); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE); -#ifdef notdef - TIFFSetField(tif, TIFFTAG_WHITEPOINT, whitex, whitey); - TIFFSetField(tif, TIFFTAG_PRIMARYCHROMATICITIES, primaries); -#endif - TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, refblackwhite); - TIFFSetField(tif, TIFFTAG_TRANSFERFUNCTION, red, green, blue); - - scan_line = (unsigned char *) malloc(WIDTH * 3); - - for (i = 0; i < 255; i++) { - for (j = 0; j < 75; j++) { - scan_line[j * 3] = 255; - scan_line[(j * 3) + 1] = 255 - i; - scan_line[(j * 3) + 2] = 255 - i; - } - for (j = 75; j < 150; j++) { - scan_line[j * 3] = 255 - i; - scan_line[(j * 3) + 1] = 255; - scan_line[(j * 3) + 2] = 255 - i; - } - for (j = 150; j < 225; j++) { - scan_line[j * 3] = 255 - i; - scan_line[(j * 3) + 1] = 255 - i; - scan_line[(j * 3) + 2] = 255; - } - for (j = 225; j < 300; j++) { - scan_line[j * 3] = (i - 1) / 2; - scan_line[(j * 3) + 1] = (i - 1) / 2; - scan_line[(j * 3) + 2] = (i - 1) / 2; - } - for (j = 300; j < 375; j++) { - scan_line[j * 3] = 255 - i; - scan_line[(j * 3) + 1] = 255; - scan_line[(j * 3) + 2] = 255; - } - for (j = 375; j < 450; j++) { - scan_line[j * 3] = 255; - scan_line[(j * 3) + 1] = 255 - i; - scan_line[(j * 3) + 2] = 255; - } - for (j = 450; j < 525; j++) { - scan_line[j * 3] = 255; - scan_line[(j * 3) + 1] = 255; - scan_line[(j * 3) + 2] = 255 - i; - } - TIFFWriteScanline(tif, scan_line, i, 0); - } - for (i = 255; i < 512; i++) { - for (j = 0; j < 75; j++) { - scan_line[j * 3] = i; - scan_line[(j * 3) + 1] = 0; - scan_line[(j * 3) + 2] = 0; - } - for (j = 75; j < 150; j++) { - scan_line[j * 3] = 0; - scan_line[(j * 3) + 1] = i; - scan_line[(j * 3) + 2] = 0; - } - for (j = 150; j < 225; j++) { - scan_line[j * 3] = 0; - scan_line[(j * 3) + 1] = 0; - scan_line[(j * 3) + 2] = i; - } - for (j = 225; j < 300; j++) { - scan_line[j * 3] = (i - 1) / 2; - scan_line[(j * 3) + 1] = (i - 1) / 2; - scan_line[(j * 3) + 2] = (i - 1) / 2; - } - for (j = 300; j < 375; j++) { - scan_line[j * 3] = 0; - scan_line[(j * 3) + 1] = i; - scan_line[(j * 3) + 2] = i; - } - for (j = 375; j < 450; j++) { - scan_line[j * 3] = i; - scan_line[(j * 3) + 1] = 0; - scan_line[(j * 3) + 2] = i; - } - for (j = 450; j < 525; j++) { - scan_line[j * 3] = i; - scan_line[(j * 3) + 1] = i; - scan_line[(j * 3) + 2] = 0; - } - TIFFWriteScanline(tif, scan_line, i, 0); - } - - free(scan_line); - TIFFClose(tif); - exit(0); -} - -void -Usage() -{ - fprintf(stderr, "Usage: %s -gamma gamma tiff-image\n", programName); - exit(0); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/xtiff/Makefile.am b/tiff/contrib/dbs/xtiff/Makefile.am deleted file mode 100755 index 749f5ce..0000000 --- a/tiff/contrib/dbs/xtiff/Makefile.am +++ /dev/null @@ -1,42 +0,0 @@ -# -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -#LIBTIFF = $(top_builddir)/libtiff/libtiff.la - -EXTRA_DIST = README patchlevel.h xtiff.c xtifficon.h - -#noinst_PROGRAMS = - -#if HAVE_XAW -#noinst_PROGRAMS += xtiff -#endif - -#xtiff_SOURCES = patchlevel.h xtiff.c xtifficon.h -#xtiff_CFLAGS = $(CFLAGS) $(XAW_CFLAGS) $(AM_CFLAGS) -#xtiff_LDADD = $(LIBTIFF) $(X_LIBS) $(XAW_LIBS) - -#INCLUDES = -I$(top_srcdir)/libtiff - diff --git a/tiff/contrib/dbs/xtiff/Makefile.in b/tiff/contrib/dbs/xtiff/Makefile.in deleted file mode 100755 index de139dd..0000000 --- a/tiff/contrib/dbs/xtiff/Makefile.in +++ /dev/null @@ -1,509 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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It was written to -handle as many different kinds of TIFF files as possible while remaining -simple, portable and efficient. xtiff requires X11 R4, the Athena Widgets -and Sam Leffler's libtiff package (which can be found on ucbvax.berkeley.edu). diff --git a/tiff/contrib/dbs/xtiff/patchlevel.h b/tiff/contrib/dbs/xtiff/patchlevel.h deleted file mode 100755 index 538b6d9..0000000 --- a/tiff/contrib/dbs/xtiff/patchlevel.h +++ /dev/null @@ -1,8 +0,0 @@ -#define PATCHLEVEL 0 -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/xtiff/xtiff.c b/tiff/contrib/dbs/xtiff/xtiff.c deleted file mode 100755 index 97e4ffe..0000000 --- a/tiff/contrib/dbs/xtiff/xtiff.c +++ /dev/null @@ -1,1290 +0,0 @@ -/* - * $Id: xtiff.c,v 1.4 2013-05-02 14:44:29 tgl Exp $ - * - * xtiff - view a TIFF file in an X window - * - * Dan Sears - * Chris Sears - * - * Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts. - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of Digital not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - * Revision 1.0 90/05/07 - * Initial release. - * Revision 2.0 90/12/20 - * Converted to use the Athena Widgets and the Xt Intrinsics. - * - * Notes: - * - * According to the TIFF 5.0 Specification, it is possible to have - * both a TIFFTAG_COLORMAP and a TIFFTAG_COLORRESPONSECURVE. This - * doesn't make sense since a TIFFTAG_COLORMAP is 16 bits wide and - * a TIFFTAG_COLORRESPONSECURVE is tfBitsPerSample bits wide for each - * channel. This is probably a bug in the specification. - * In this case, TIFFTAG_COLORRESPONSECURVE is ignored. - * This might make sense if TIFFTAG_COLORMAP was 8 bits wide. - * - * TIFFTAG_COLORMAP is often incorrectly written as ranging from - * 0 to 255 rather than from 0 to 65535. CheckAndCorrectColormap() - * takes care of this. - * - * Only ORIENTATION_TOPLEFT is supported correctly. This is the - * default TIFF and X orientation. Other orientations will be - * displayed incorrectly. - * - * There is no support for or use of 3/3/2 DirectColor visuals. - * TIFFTAG_MINSAMPLEVALUE and TIFFTAG_MAXSAMPLEVALUE are not supported. - * - * Only TIFFTAG_BITSPERSAMPLE values that are 1, 2, 4 or 8 are supported. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#define XK_MISCELLANY -#include -#include "xtifficon.h" - -#define TIFF_GAMMA "2.2" /* default gamma from the TIFF 5.0 spec */ -#define ROUND(x) (uint16) ((x) + 0.5) -#define SCALE(x, s) (((x) * 65535L) / (s)) -#define MCHECK(m) if (!m) { fprintf(stderr, "malloc failed\n"); exit(0); } -#define MIN(a, b) (((a) < (b)) ? (a) : (b)) -#define MAX(a, b) (((a) > (b)) ? (a) : (b)) -#define VIEWPORT_WIDTH 700 -#define VIEWPORT_HEIGHT 500 -#define KEY_TRANSLATE 20 - -#ifdef __STDC__ -#define PP(args) args -#else -#define PP(args) () -#endif - -int main PP((int argc, char **argv)); -void OpenTIFFFile PP((void)); -void GetTIFFHeader PP((void)); -void SetNameLabel PP((void)); -void CheckAndCorrectColormap PP((void)); -void SimpleGammaCorrection PP((void)); -void GetVisual PP((void)); -Boolean SearchVisualList PP((int image_depth, - int visual_class, Visual **visual)); -void GetTIFFImage PP((void)); -void CreateXImage PP((void)); -XtCallbackProc SelectProc PP((Widget w, caddr_t unused_1, caddr_t unused_2)); -void QuitProc PP((void)); -void NextProc PP((void)); -void PreviousProc PP((void)); -void PageProc PP((int direction)); -void EventProc PP((Widget widget, caddr_t unused, XEvent *event)); -void ResizeProc PP((void)); -int XTiffErrorHandler PP((Display *display, XErrorEvent *error_event)); -void Usage PP((void)); - -int xtVersion = XtSpecificationRelease; /* xtiff depends on R4 or higher */ - -/* - * Xt data structures - */ -Widget shellWidget, formWidget, listWidget, labelWidget, imageWidget; - -enum { ButtonQuit = 0, ButtonPreviousPage = 1, ButtonNextPage = 2 }; - -String buttonStrings[] = { "Quit", "Previous", "Next" }; - -static XrmOptionDescRec shellOptions[] = { - { "-help", "*help", XrmoptionNoArg, (caddr_t) "True" }, - { "-gamma", "*gamma", XrmoptionSepArg, NULL }, - { "-usePixmap", "*usePixmap", XrmoptionSepArg, NULL }, - { "-viewportWidth", "*viewportWidth", XrmoptionSepArg, NULL }, - { "-viewportHeight", "*viewportHeight", XrmoptionSepArg, NULL }, - { "-translate", "*translate", XrmoptionSepArg, NULL }, - { "-verbose", "*verbose", XrmoptionSepArg, NULL } -}; - -typedef struct { - Boolean help; - float gamma; - Boolean usePixmap; - uint32 viewportWidth; - uint32 viewportHeight; - int translate; - Boolean verbose; -} AppData, *AppDataPtr; - -AppData appData; - -XtResource clientResources[] = { - { - "help", XtCBoolean, XtRBoolean, sizeof(Boolean), - XtOffset(AppDataPtr, help), XtRImmediate, (XtPointer) False - }, { - "gamma", "Gamma", XtRFloat, sizeof(float), - XtOffset(AppDataPtr, gamma), XtRString, (XtPointer) TIFF_GAMMA - }, { - "usePixmap", "UsePixmap", XtRBoolean, sizeof(Boolean), - XtOffset(AppDataPtr, usePixmap), XtRImmediate, (XtPointer) True - }, { - "viewportWidth", "ViewportWidth", XtRInt, sizeof(int), - XtOffset(AppDataPtr, viewportWidth), XtRImmediate, - (XtPointer) VIEWPORT_WIDTH - }, { - "viewportHeight", "ViewportHeight", XtRInt, sizeof(int), - XtOffset(AppDataPtr, viewportHeight), XtRImmediate, - (XtPointer) VIEWPORT_HEIGHT - }, { - "translate", "Translate", XtRInt, sizeof(int), - XtOffset(AppDataPtr, translate), XtRImmediate, (XtPointer) KEY_TRANSLATE - }, { - "verbose", "Verbose", XtRBoolean, sizeof(Boolean), - XtOffset(AppDataPtr, verbose), XtRImmediate, (XtPointer) True - } -}; - -Arg formArgs[] = { - { XtNresizable, True } -}; - -Arg listArgs[] = { - { XtNresizable, False }, - { XtNborderWidth, 0 }, - { XtNdefaultColumns, 3 }, - { XtNforceColumns, True }, - { XtNlist, (int) buttonStrings }, - { XtNnumberStrings, XtNumber(buttonStrings) }, - { XtNtop, XtChainTop }, - { XtNleft, XtChainLeft }, - { XtNbottom, XtChainTop }, - { XtNright, XtChainLeft } -}; - -Arg labelArgs[] = { - { XtNresizable, False }, - { XtNwidth, 200 }, - { XtNborderWidth, 0 }, - { XtNjustify, XtJustifyLeft }, - { XtNtop, XtChainTop }, - { XtNleft, XtChainLeft }, - { XtNbottom, XtChainTop }, - { XtNright, XtChainLeft } -}; - -Arg imageArgs[] = { - { XtNresizable, True }, - { XtNborderWidth, 0 }, - { XtNtop, XtChainTop }, - { XtNleft, XtChainLeft }, - { XtNbottom, XtChainTop }, - { XtNright, XtChainLeft } -}; - -XtActionsRec actionsTable[] = { - { "quit", QuitProc }, - { "next", NextProc }, - { "previous", PreviousProc }, - { "notifyresize", ResizeProc } -}; - -char translationsTable[] = "q: quit() \n \ - Q: quit() \n \ - WM_PROTOCOLS: quit()\n \ - p: previous() \n \ - P: previous() \n \ - n: next() \n \ - N: next() \n \ - : notifyresize()"; - -/* - * X data structures - */ -Colormap xColormap; -Display * xDisplay; -Pixmap xImagePixmap; -Visual * xVisual; -XImage * xImage; -GC xWinGc; -int xImageDepth, xScreen, xRedMask, xGreenMask, xBlueMask, - xOffset = 0, yOffset = 0, grabX = -1, grabY = -1; -unsigned char basePixel = 0; - -/* - * TIFF data structures - */ -TIFF * tfFile = NULL; -uint32 tfImageWidth, tfImageHeight; -uint16 tfBitsPerSample, tfSamplesPerPixel, tfPlanarConfiguration, - tfPhotometricInterpretation, tfGrayResponseUnit, - tfImageDepth, tfBytesPerRow; -int tfDirectory = 0, tfMultiPage = False; -double tfUnitMap, tfGrayResponseUnitMap[] = { - -1, -10, -100, -1000, -10000, -100000 - }; - -/* - * display data structures - */ -double *dRed, *dGreen, *dBlue; - -/* - * shared data structures - */ -uint16 * redMap = NULL, *greenMap = NULL, *blueMap = NULL, - *grayMap = NULL, colormapSize; -char * imageMemory; -char * fileName; - -int -main(int argc, char **argv) -{ - XSetWindowAttributes window_attributes; - Widget widget_list[3]; - Arg args[5]; - - setbuf(stdout, NULL); setbuf(stderr, NULL); - - shellWidget = XtInitialize(argv[0], "XTiff", shellOptions, - XtNumber(shellOptions), &argc, argv); - - XSetErrorHandler(XTiffErrorHandler); - - XtGetApplicationResources(shellWidget, &appData, - (XtResourceList) clientResources, (Cardinal) XtNumber(clientResources), - (ArgList) NULL, (Cardinal) 0); - - if ((argc <= 1) || (argc > 2) || appData.help) - Usage(); - - if (appData.verbose == False) { - TIFFSetErrorHandler(0); - TIFFSetWarningHandler(0); - } - - fileName = argv[1]; - - xDisplay = XtDisplay(shellWidget); - xScreen = DefaultScreen(xDisplay); - - OpenTIFFFile(); - GetTIFFHeader(); - SimpleGammaCorrection(); - GetVisual(); - GetTIFFImage(); - - /* - * Send visual, colormap, depth and iconPixmap to shellWidget. - * Sending the visual to the shell is only possible with the advent of R4. - */ - XtSetArg(args[0], XtNvisual, xVisual); - XtSetArg(args[1], XtNcolormap, xColormap); - XtSetArg(args[2], XtNdepth, - xImageDepth == 1 ? DefaultDepth(xDisplay, xScreen) : xImageDepth); - XtSetArg(args[3], XtNiconPixmap, - XCreateBitmapFromData(xDisplay, RootWindow(xDisplay, xScreen), - xtifficon_bits, xtifficon_width, xtifficon_height)); - XtSetArg(args[4], XtNallowShellResize, True); - XtSetValues(shellWidget, args, 5); - - /* - * widget instance hierarchy - */ - formWidget = XtCreateManagedWidget("form", formWidgetClass, - shellWidget, formArgs, XtNumber(formArgs)); - - widget_list[0] = listWidget = XtCreateWidget("list", - listWidgetClass, formWidget, listArgs, XtNumber(listArgs)); - - widget_list[1] = labelWidget = XtCreateWidget("label", - labelWidgetClass, formWidget, labelArgs, XtNumber(labelArgs)); - - widget_list[2] = imageWidget = XtCreateWidget("image", - widgetClass, formWidget, imageArgs, XtNumber(imageArgs)); - - XtManageChildren(widget_list, XtNumber(widget_list)); - - /* - * initial widget sizes - for small images let xtiff size itself - */ - if (tfImageWidth >= appData.viewportWidth) { - XtSetArg(args[0], XtNwidth, appData.viewportWidth); - XtSetValues(shellWidget, args, 1); - } - if (tfImageHeight >= appData.viewportHeight) { - XtSetArg(args[0], XtNheight, appData.viewportHeight); - XtSetValues(shellWidget, args, 1); - } - - XtSetArg(args[0], XtNwidth, tfImageWidth); - XtSetArg(args[1], XtNheight, tfImageHeight); - XtSetValues(imageWidget, args, 2); - - /* - * formWidget uses these constraints but they are stored in the children. - */ - XtSetArg(args[0], XtNfromVert, listWidget); - XtSetValues(imageWidget, args, 1); - XtSetArg(args[0], XtNfromHoriz, listWidget); - XtSetValues(labelWidget, args, 1); - - SetNameLabel(); - - XtAddCallback(listWidget, XtNcallback, (XtCallbackProc) SelectProc, - (XtPointer) NULL); - - XtAddActions(actionsTable, XtNumber(actionsTable)); - XtSetArg(args[0], XtNtranslations, - XtParseTranslationTable(translationsTable)); - XtSetValues(formWidget, &args[0], 1); - XtSetValues(imageWidget, &args[0], 1); - - /* - * This is intended to be a little faster than going through - * the translation manager. - */ - XtAddEventHandler(imageWidget, ExposureMask | ButtonPressMask - | ButtonReleaseMask | Button1MotionMask | KeyPressMask, - False, EventProc, NULL); - - XtRealizeWidget(shellWidget); - - window_attributes.cursor = XCreateFontCursor(xDisplay, XC_fleur); - XChangeWindowAttributes(xDisplay, XtWindow(imageWidget), - CWCursor, &window_attributes); - - CreateXImage(); - - XtMainLoop(); - - return 0; -} - -void -OpenTIFFFile() -{ - if (tfFile != NULL) - TIFFClose(tfFile); - - if ((tfFile = TIFFOpen(fileName, "r")) == NULL) { - fprintf(appData.verbose ? stderr : stdout, - "xtiff: can't open %s as a TIFF file\n", fileName); - exit(0); - } - - tfMultiPage = (TIFFLastDirectory(tfFile) ? False : True); -} - -void -GetTIFFHeader() -{ - register int i; - - if (!TIFFSetDirectory(tfFile, tfDirectory)) { - fprintf(stderr, "xtiff: can't seek to directory %d in %s\n", - tfDirectory, fileName); - exit(0); - } - - TIFFGetField(tfFile, TIFFTAG_IMAGEWIDTH, &tfImageWidth); - TIFFGetField(tfFile, TIFFTAG_IMAGELENGTH, &tfImageHeight); - - /* - * If the following tags aren't present then use the TIFF defaults. - */ - TIFFGetFieldDefaulted(tfFile, TIFFTAG_BITSPERSAMPLE, &tfBitsPerSample); - TIFFGetFieldDefaulted(tfFile, TIFFTAG_SAMPLESPERPIXEL, &tfSamplesPerPixel); - TIFFGetFieldDefaulted(tfFile, TIFFTAG_PLANARCONFIG, &tfPlanarConfiguration); - TIFFGetFieldDefaulted(tfFile, TIFFTAG_GRAYRESPONSEUNIT, &tfGrayResponseUnit); - - tfUnitMap = tfGrayResponseUnitMap[tfGrayResponseUnit]; - colormapSize = 1 << tfBitsPerSample; - tfImageDepth = tfBitsPerSample * tfSamplesPerPixel; - - dRed = (double *) malloc(colormapSize * sizeof(double)); - dGreen = (double *) malloc(colormapSize * sizeof(double)); - dBlue = (double *) malloc(colormapSize * sizeof(double)); - MCHECK(dRed); MCHECK(dGreen); MCHECK(dBlue); - - /* - * If TIFFTAG_PHOTOMETRIC is not present then assign a reasonable default. - * The TIFF 5.0 specification doesn't give a default. - */ - if (!TIFFGetField(tfFile, TIFFTAG_PHOTOMETRIC, - &tfPhotometricInterpretation)) { - if (tfSamplesPerPixel != 1) - tfPhotometricInterpretation = PHOTOMETRIC_RGB; - else if (tfBitsPerSample == 1) - tfPhotometricInterpretation = PHOTOMETRIC_MINISBLACK; - else if (TIFFGetField(tfFile, TIFFTAG_COLORMAP, - &redMap, &greenMap, &blueMap)) { - tfPhotometricInterpretation = PHOTOMETRIC_PALETTE; - redMap = greenMap = blueMap = NULL; - } else - tfPhotometricInterpretation = PHOTOMETRIC_MINISBLACK; - } - - /* - * Given TIFFTAG_PHOTOMETRIC extract or create the response curves. - */ - switch (tfPhotometricInterpretation) { - case PHOTOMETRIC_RGB: - redMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - greenMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - blueMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - MCHECK(redMap); MCHECK(greenMap); MCHECK(blueMap); - for (i = 0; i < colormapSize; i++) - dRed[i] = dGreen[i] = dBlue[i] - = (double) SCALE(i, colormapSize - 1); - break; - case PHOTOMETRIC_PALETTE: - if (!TIFFGetField(tfFile, TIFFTAG_COLORMAP, - &redMap, &greenMap, &blueMap)) { - redMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - greenMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - blueMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - MCHECK(redMap); MCHECK(greenMap); MCHECK(blueMap); - for (i = 0; i < colormapSize; i++) - dRed[i] = dGreen[i] = dBlue[i] - = (double) SCALE(i, colormapSize - 1); - } else { - CheckAndCorrectColormap(); - for (i = 0; i < colormapSize; i++) { - dRed[i] = (double) redMap[i]; - dGreen[i] = (double) greenMap[i]; - dBlue[i] = (double) blueMap[i]; - } - } - break; - case PHOTOMETRIC_MINISWHITE: - redMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - greenMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - blueMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - MCHECK(redMap); MCHECK(greenMap); MCHECK(blueMap); - for (i = 0; i < colormapSize; i++) - dRed[i] = dGreen[i] = dBlue[i] = (double) - SCALE(colormapSize-1-i, colormapSize-1); - break; - case PHOTOMETRIC_MINISBLACK: - redMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - greenMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - blueMap = (uint16 *) malloc(colormapSize * sizeof(uint16)); - MCHECK(redMap); MCHECK(greenMap); MCHECK(blueMap); - for (i = 0; i < colormapSize; i++) - dRed[i] = dGreen[i] = dBlue[i] = (double) SCALE(i, colormapSize-1); - break; - default: - fprintf(stderr, - "xtiff: can't display photometric interpretation type %d\n", - tfPhotometricInterpretation); - exit(0); - } -} - -void -SetNameLabel() -{ - char buffer[BUFSIZ]; - Arg args[1]; - - if (tfMultiPage) - snprintf(buffer, sizeof(buffer), "%s - page %d", fileName, tfDirectory); - else - snprintf(buffer, sizeof(buffer), "%s", fileName); - XtSetArg(args[0], XtNlabel, buffer); - XtSetValues(labelWidget, args, 1); -} - -/* - * Many programs get TIFF colormaps wrong. They use 8-bit colormaps instead of - * 16-bit colormaps. This function is a heuristic to detect and correct this. - */ -void -CheckAndCorrectColormap() -{ - register int i; - - for (i = 0; i < colormapSize; i++) - if ((redMap[i] > 255) || (greenMap[i] > 255) || (blueMap[i] > 255)) - return; - - for (i = 0; i < colormapSize; i++) { - redMap[i] = SCALE(redMap[i], 255); - greenMap[i] = SCALE(greenMap[i], 255); - blueMap[i] = SCALE(blueMap[i], 255); - } - TIFFWarning(fileName, "Assuming 8-bit colormap"); -} - -void -SimpleGammaCorrection() -{ - register int i; - register double i_gamma = 1.0 / appData.gamma; - - for (i = 0; i < colormapSize; i++) { - if (((tfPhotometricInterpretation == PHOTOMETRIC_MINISWHITE) - && (i == colormapSize - 1)) - || ((tfPhotometricInterpretation == PHOTOMETRIC_MINISBLACK) - && (i == 0))) - redMap[i] = greenMap[i] = blueMap[i] = 0; - else { - redMap[i] = ROUND((pow(dRed[i] / 65535.0, i_gamma) * 65535.0)); - greenMap[i] = ROUND((pow(dGreen[i] / 65535.0, i_gamma) * 65535.0)); - blueMap[i] = ROUND((pow(dBlue[i] / 65535.0, i_gamma) * 65535.0)); - } - } - - free(dRed); free(dGreen); free(dBlue); -} - -static char* classNames[] = { - "StaticGray", - "GrayScale", - "StaticColor", - "PseudoColor", - "TrueColor", - "DirectColor" -}; - -/* - * Current limitation: the visual is set initially by the first file. - * It cannot be changed. - */ -void -GetVisual() -{ - XColor *colors = NULL; - unsigned long *pixels = NULL; - unsigned long i; - - switch (tfImageDepth) { - /* - * X really wants a 32-bit image with the fourth channel unused, - * but the visual structure thinks it's 24-bit. bitmap_unit is 32. - */ - case 32: - case 24: - if (SearchVisualList(24, DirectColor, &xVisual) == False) { - fprintf(stderr, "xtiff: 24-bit DirectColor visual not available\n"); - exit(0); - } - - colors = (XColor *) malloc(3 * colormapSize * sizeof(XColor)); - MCHECK(colors); - - for (i = 0; i < colormapSize; i++) { - colors[i].pixel = (i << 16) + (i << 8) + i; - colors[i].red = redMap[i]; - colors[i].green = greenMap[i]; - colors[i].blue = blueMap[i]; - colors[i].flags = DoRed | DoGreen | DoBlue; - } - - xColormap = XCreateColormap(xDisplay, RootWindow(xDisplay, xScreen), - xVisual, AllocAll); - XStoreColors(xDisplay, xColormap, colors, colormapSize); - break; - case 8: - case 4: - case 2: - /* - * We assume that systems with 24-bit visuals also have 8-bit visuals. - * We don't promote from 8-bit PseudoColor to 24/32 bit DirectColor. - */ - switch (tfPhotometricInterpretation) { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - if (SearchVisualList((int) tfImageDepth, GrayScale, &xVisual) == True) - break; - case PHOTOMETRIC_PALETTE: - if (SearchVisualList((int) tfImageDepth, PseudoColor, &xVisual) == True) - break; - default: - fprintf(stderr, "xtiff: Unsupported TIFF/X configuration\n"); - exit(0); - } - - colors = (XColor *) malloc(colormapSize * sizeof(XColor)); - MCHECK(colors); - - for (i = 0; i < colormapSize; i++) { - colors[i].pixel = i; - colors[i].red = redMap[i]; - colors[i].green = greenMap[i]; - colors[i].blue = blueMap[i]; - colors[i].flags = DoRed | DoGreen | DoBlue; - } - - /* - * xtiff's colormap allocation is private. It does not attempt - * to detect whether any existing colormap entries are suitable - * for its use. This will cause colormap flashing. Furthermore, - * background and foreground are taken from the environment. - * For example, the foreground color may be red when the visual - * is GrayScale. If the colormap is completely populated, - * Xt will not be able to allocate fg and bg. - */ - if (tfImageDepth == 8) - xColormap = XCreateColormap(xDisplay, RootWindow(xDisplay, xScreen), - xVisual, AllocAll); - else { - xColormap = XCreateColormap(xDisplay, RootWindow(xDisplay, xScreen), - xVisual, AllocNone); - pixels = (unsigned long *) - malloc(colormapSize * sizeof(unsigned long)); - MCHECK(pixels); - (void) XAllocColorCells(xDisplay, xColormap, True, - NULL, 0, pixels, colormapSize); - basePixel = (unsigned char) pixels[0]; - free(pixels); - } - XStoreColors(xDisplay, xColormap, colors, colormapSize); - break; - case 1: - xImageDepth = 1; - xVisual = DefaultVisual(xDisplay, xScreen); - xColormap = DefaultColormap(xDisplay, xScreen); - break; - default: - fprintf(stderr, "xtiff: unsupported image depth %d\n", tfImageDepth); - exit(0); - } - - if (appData.verbose == True) - fprintf(stderr, "%s: Using %d-bit %s visual.\n", - fileName, xImageDepth, classNames[xVisual->class]); - - if (colors != NULL) - free(colors); - if (grayMap != NULL) - free(grayMap); - if (redMap != NULL) - free(redMap); - if (greenMap != NULL) - free(greenMap); - if (blueMap != NULL) - free(blueMap); - - colors = NULL; grayMap = redMap = greenMap = blueMap = NULL; -} - -/* - * Search for an appropriate visual. Promote where necessary. - * Check to make sure that ENOUGH colormap entries are writeable. - * basePixel was determined when XAllocColorCells() contiguously - * allocated enough entries. basePixel is used below in GetTIFFImage. - */ -Boolean -SearchVisualList(image_depth, visual_class, visual) - int image_depth, visual_class; - Visual **visual; -{ - XVisualInfo template_visual, *visual_list, *vl; - int i, n_visuals; - - template_visual.screen = xScreen; - vl = visual_list = XGetVisualInfo(xDisplay, VisualScreenMask, - &template_visual, &n_visuals); - - if (n_visuals == 0) { - fprintf(stderr, "xtiff: visual list not available\n"); - exit(0); - } - - for (i = 0; i < n_visuals; vl++, i++) { - if ((vl->class == visual_class) && (vl->depth >= image_depth) - && (vl->visual->map_entries >= (1 << vl->depth))) { - *visual = vl->visual; - xImageDepth = vl->depth; - xRedMask = vl->red_mask; - xGreenMask = vl->green_mask; - xBlueMask = vl->blue_mask; - XFree((char *) visual_list); - return True; - } - } - - XFree((char *) visual_list); - return False; -} - -void -GetTIFFImage() -{ - int pixel_map[3], red_shift, green_shift, blue_shift; - char *scan_line, *output_p, *input_p; - uint32 i, j; - uint16 s; - - scan_line = (char *) malloc(tfBytesPerRow = TIFFScanlineSize(tfFile)); - MCHECK(scan_line); - - if ((tfImageDepth == 32) || (tfImageDepth == 24)) { - output_p = imageMemory = (char *) - malloc(tfImageWidth * tfImageHeight * 4); - MCHECK(imageMemory); - - /* - * Handle different color masks for different frame buffers. - */ - if (ImageByteOrder(xDisplay) == LSBFirst) { /* DECstation 5000 */ - red_shift = pixel_map[0] = xRedMask == 0xFF000000 ? 3 - : (xRedMask == 0xFF0000 ? 2 : (xRedMask == 0xFF00 ? 1 : 0)); - green_shift = pixel_map[1] = xGreenMask == 0xFF000000 ? 3 - : (xGreenMask == 0xFF0000 ? 2 : (xGreenMask == 0xFF00 ? 1 : 0)); - blue_shift = pixel_map[2] = xBlueMask == 0xFF000000 ? 3 - : (xBlueMask == 0xFF0000 ? 2 : (xBlueMask == 0xFF00 ? 1 : 0)); - } else { /* Ardent */ - red_shift = pixel_map[0] = xRedMask == 0xFF000000 ? 0 - : (xRedMask == 0xFF0000 ? 1 : (xRedMask == 0xFF00 ? 2 : 3)); - green_shift = pixel_map[0] = xGreenMask == 0xFF000000 ? 0 - : (xGreenMask == 0xFF0000 ? 1 : (xGreenMask == 0xFF00 ? 2 : 3)); - blue_shift = pixel_map[0] = xBlueMask == 0xFF000000 ? 0 - : (xBlueMask == 0xFF0000 ? 1 : (xBlueMask == 0xFF00 ? 2 : 3)); - } - - if (tfPlanarConfiguration == PLANARCONFIG_CONTIG) { - for (i = 0; i < tfImageHeight; i++) { - if (TIFFReadScanline(tfFile, scan_line, i, 0) < 0) - break; - for (input_p = scan_line, j = 0; j < tfImageWidth; j++) { - *(output_p + red_shift) = *input_p++; - *(output_p + green_shift) = *input_p++; - *(output_p + blue_shift) = *input_p++; - output_p += 4; - if (tfSamplesPerPixel == 4) /* skip the fourth channel */ - input_p++; - } - } - } else { - for (s = 0; s < tfSamplesPerPixel; s++) { - if (s == 3) /* skip the fourth channel */ - continue; - for (i = 0; i < tfImageHeight; i++) { - if (TIFFReadScanline(tfFile, scan_line, i, s) < 0) - break; - input_p = scan_line; - output_p = imageMemory + (i*tfImageWidth*4) + pixel_map[s]; - for (j = 0; j < tfImageWidth; j++, output_p += 4) - *output_p = *input_p++; - } - } - } - } else { - if (xImageDepth == tfImageDepth) { - output_p = imageMemory = (char *) - malloc(tfBytesPerRow * tfImageHeight); - MCHECK(imageMemory); - - for (i = 0; i < tfImageHeight; i++, output_p += tfBytesPerRow) - if (TIFFReadScanline(tfFile, output_p, i, 0) < 0) - break; - } else if ((xImageDepth == 8) && (tfImageDepth == 4)) { - output_p = imageMemory = (char *) - malloc(tfBytesPerRow * 2 * tfImageHeight + 2); - MCHECK(imageMemory); - - /* - * If a scanline is of odd size the inner loop below will overshoot. - * This is handled very simply by recalculating the start point at - * each scanline and padding imageMemory a little at the end. - */ - for (i = 0; i < tfImageHeight; i++) { - if (TIFFReadScanline(tfFile, scan_line, i, 0) < 0) - break; - output_p = &imageMemory[i * tfImageWidth]; - input_p = scan_line; - for (j = 0; j < tfImageWidth; j += 2, input_p++) { - *output_p++ = (*input_p >> 4) + basePixel; - *output_p++ = (*input_p & 0xf) + basePixel; - } - } - } else if ((xImageDepth == 8) && (tfImageDepth == 2)) { - output_p = imageMemory = (char *) - malloc(tfBytesPerRow * 4 * tfImageHeight + 4); - MCHECK(imageMemory); - - for (i = 0; i < tfImageHeight; i++) { - if (TIFFReadScanline(tfFile, scan_line, i, 0) < 0) - break; - output_p = &imageMemory[i * tfImageWidth]; - input_p = scan_line; - for (j = 0; j < tfImageWidth; j += 4, input_p++) { - *output_p++ = (*input_p >> 6) + basePixel; - *output_p++ = ((*input_p >> 4) & 3) + basePixel; - *output_p++ = ((*input_p >> 2) & 3) + basePixel; - *output_p++ = (*input_p & 3) + basePixel; - } - } - } else if ((xImageDepth == 4) && (tfImageDepth == 2)) { - output_p = imageMemory = (char *) - malloc(tfBytesPerRow * 2 * tfImageHeight + 2); - MCHECK(imageMemory); - - for (i = 0; i < tfImageHeight; i++) { - if (TIFFReadScanline(tfFile, scan_line, i, 0) < 0) - break; - output_p = &imageMemory[i * tfBytesPerRow * 2]; - input_p = scan_line; - for (j = 0; j < tfImageWidth; j += 4, input_p++) { - *output_p++ = (((*input_p>>6) << 4) - | ((*input_p >> 4) & 3)) + basePixel; - *output_p++ = ((((*input_p>>2) & 3) << 4) - | (*input_p & 3)) + basePixel; - } - } - } else { - fprintf(stderr, - "xtiff: can't handle %d-bit TIFF file on an %d-bit display\n", - tfImageDepth, xImageDepth); - exit(0); - } - } - - free(scan_line); -} - -void -CreateXImage() -{ - XGCValues gc_values; - GC bitmap_gc; - - xOffset = yOffset = 0; - grabX = grabY = -1; - - xImage = XCreateImage(xDisplay, xVisual, xImageDepth, - xImageDepth == 1 ? XYBitmap : ZPixmap, /* offset */ 0, - (char *) imageMemory, tfImageWidth, tfImageHeight, - /* bitmap_pad */ 8, /* bytes_per_line */ 0); - - /* - * libtiff converts LSB data into MSB but doesn't change the FillOrder tag. - */ - if (xImageDepth == 1) - xImage->bitmap_bit_order = MSBFirst; - if (xImageDepth <= 8) - xImage->byte_order = MSBFirst; - - /* - * create an appropriate GC - */ - gc_values.function = GXcopy; - gc_values.plane_mask = AllPlanes; - if (tfPhotometricInterpretation == PHOTOMETRIC_MINISBLACK) { - gc_values.foreground = XWhitePixel(xDisplay, xScreen); - gc_values.background = XBlackPixel(xDisplay, xScreen); - } else { - gc_values.foreground = XBlackPixel(xDisplay, xScreen); - gc_values.background = XWhitePixel(xDisplay, xScreen); - } - xWinGc = XCreateGC(xDisplay, XtWindow(shellWidget), - GCFunction | GCPlaneMask | GCForeground | GCBackground, &gc_values); - - /* - * create the pixmap and load the image - */ - if (appData.usePixmap == True) { - xImagePixmap = XCreatePixmap(xDisplay, RootWindow(xDisplay, xScreen), - xImage->width, xImage->height, xImageDepth); - - /* - * According to the O'Reilly X Protocol Reference Manual, page 53, - * "A pixmap depth of one is always supported and listed, but windows - * of depth one might not be supported." Therefore we create a pixmap - * of depth one and use XCopyPlane(). This is idiomatic. - */ - if (xImageDepth == 1) { /* just pass the bits through */ - gc_values.foreground = 1; /* foreground describes set bits */ - gc_values.background = 0; /* background describes clear bits */ - bitmap_gc = XCreateGC(xDisplay, xImagePixmap, - GCForeground | GCBackground, &gc_values); - XPutImage(xDisplay, xImagePixmap, bitmap_gc, xImage, - 0, 0, 0, 0, xImage->width, xImage->height); - } else - XPutImage(xDisplay, xImagePixmap, xWinGc, xImage, - 0, 0, 0, 0, xImage->width, xImage->height); - XDestroyImage(xImage); - free(imageMemory); - } -} - -XtCallbackProc -SelectProc(w, unused_1, unused_2) - Widget w; - caddr_t unused_1; - caddr_t unused_2; -{ - XawListReturnStruct *list_return; - - list_return = XawListShowCurrent(w); - - switch (list_return->list_index) { - case ButtonQuit: - QuitProc(); - break; - case ButtonPreviousPage: - PreviousProc(); - break; - case ButtonNextPage: - NextProc(); - break; - default: - fprintf(stderr, "error in SelectProc\n"); - exit(0); - } - XawListUnhighlight(w); -} - -void -QuitProc(void) -{ - exit(0); -} - -void -NextProc() -{ - PageProc(ButtonNextPage); -} - -void -PreviousProc() -{ - PageProc(ButtonPreviousPage); -} - -void -PageProc(direction) - int direction; -{ - XEvent fake_event; - Arg args[4]; - - switch (direction) { - case ButtonPreviousPage: - if (tfDirectory > 0) - TIFFSetDirectory(tfFile, --tfDirectory); - else - return; - break; - case ButtonNextPage: - if (TIFFReadDirectory(tfFile) == True) - tfDirectory++; - else - return; - break; - default: - fprintf(stderr, "error in PageProc\n"); - exit(0); - } - - xOffset = yOffset = 0; - grabX = grabY = -1; - - GetTIFFHeader(); - SetNameLabel(); - GetTIFFImage(); - - if (appData.usePixmap == True) - XFreePixmap(xDisplay, xImagePixmap); - else - XDestroyImage(xImage); - - CreateXImage(); - - /* - * Using XtSetValues() to set the widget size causes a resize. - * This resize gets propagated up to the parent shell. - * In order to disable this visually disconcerting effect, - * shell resizing is temporarily disabled. - */ - XtSetArg(args[0], XtNallowShellResize, False); - XtSetValues(shellWidget, args, 1); - - XtSetArg(args[0], XtNwidth, tfImageWidth); - XtSetArg(args[1], XtNheight, tfImageHeight); - XtSetValues(imageWidget, args, 2); - - XtSetArg(args[0], XtNallowShellResize, True); - XtSetValues(shellWidget, args, 1); - - XClearWindow(xDisplay, XtWindow(imageWidget)); - - fake_event.type = Expose; - fake_event.xexpose.x = fake_event.xexpose.y = 0; - fake_event.xexpose.width = tfImageWidth; /* the window will clip */ - fake_event.xexpose.height = tfImageHeight; - EventProc(imageWidget, NULL, &fake_event); -} - -void -EventProc(widget, unused, event) - Widget widget; - caddr_t unused; - XEvent *event; -{ - int ih, iw, ww, wh, sx, sy, w, h, dx, dy; - Dimension w_width, w_height; - XEvent next_event; - Arg args[2]; - - if (event->type == MappingNotify) { - XRefreshKeyboardMapping((XMappingEvent *) event); - return; - } - - if (!XtIsRealized(widget)) - return; - - if ((event->type == ButtonPress) || (event->type == ButtonRelease)) - if (event->xbutton.button != Button1) - return; - - iw = tfImageWidth; /* avoid sign problems */ - ih = tfImageHeight; - - /* - * The grabX and grabY variables record where the user grabbed the image. - * They also record whether the mouse button is down or not. - */ - if (event->type == ButtonPress) { - grabX = event->xbutton.x; - grabY = event->xbutton.y; - return; - } - - /* - * imageWidget is a Core widget and doesn't get resized. - * So we calculate the size of its viewport here. - */ - XtSetArg(args[0], XtNwidth, &w_width); - XtSetArg(args[1], XtNheight, &w_height); - XtGetValues(shellWidget, args, 2); - ww = w_width; - wh = w_height; - XtGetValues(listWidget, args, 2); - wh -= w_height; - - switch (event->type) { - case Expose: - dx = event->xexpose.x; - dy = event->xexpose.y; - sx = dx + xOffset; - sy = dy + yOffset; - w = MIN(event->xexpose.width, iw); - h = MIN(event->xexpose.height, ih); - break; - case KeyPress: - if ((grabX >= 0) || (grabY >= 0)) /* Mouse button is still down */ - return; - switch (XLookupKeysym((XKeyEvent *) event, /* KeySyms index */ 0)) { - case XK_Up: - if (ih < wh) /* Don't scroll if the window fits the image. */ - return; - sy = yOffset + appData.translate; - sy = MIN(ih - wh, sy); - if (sy == yOffset) /* Filter redundant stationary refreshes. */ - return; - yOffset = sy; - sx = xOffset; - dx = dy = 0; - w = ww; h = wh; - break; - case XK_Down: - if (ih < wh) - return; - sy = yOffset - appData.translate; - sy = MAX(sy, 0); - if (sy == yOffset) - return; - yOffset = sy; - sx = xOffset; - dx = dy = 0; - w = ww; h = wh; - break; - case XK_Left: - if (iw < ww) - return; - sx = xOffset + appData.translate; - sx = MIN(iw - ww, sx); - if (sx == xOffset) - return; - xOffset = sx; - sy = yOffset; - dx = dy = 0; - w = ww; h = wh; - break; - case XK_Right: - if (iw < ww) - return; - sx = xOffset - appData.translate; - sx = MAX(sx, 0); - if (sx == xOffset) - return; - xOffset = sx; - sy = yOffset; - dx = dy = 0; - w = ww; h = wh; - break; - default: - return; - } - break; - case MotionNotify: - /* - * MotionEvent compression. Ignore multiple motion events. - * Ignore motion events if the mouse button is up. - */ - if (XPending(xDisplay)) /* Xlib doesn't flush the output buffer */ - if (XtPeekEvent(&next_event)) - if (next_event.type == MotionNotify) - return; - if ((grabX < 0) || (grabY < 0)) - return; - sx = xOffset + grabX - (int) event->xmotion.x; - if (sx >= (iw - ww)) /* clamp x motion but allow y motion */ - sx = iw - ww; - sx = MAX(sx, 0); - sy = yOffset + grabY - (int) event->xmotion.y; - if (sy >= (ih - wh)) /* clamp y motion but allow x motion */ - sy = ih - wh; - sy = MAX(sy, 0); - if ((sx == xOffset) && (sy == yOffset)) - return; - dx = dy = 0; - w = ww; h = wh; - break; - case ButtonRelease: - xOffset = xOffset + grabX - (int) event->xbutton.x; - xOffset = MIN(iw - ww, xOffset); - xOffset = MAX(xOffset, 0); - yOffset = yOffset + grabY - (int) event->xbutton.y; - yOffset = MIN(ih - wh, yOffset); - yOffset = MAX(yOffset, 0); - grabX = grabY = -1; - default: - return; - } - - if (appData.usePixmap == True) { - if (xImageDepth == 1) - XCopyPlane(xDisplay, xImagePixmap, XtWindow(widget), - xWinGc, sx, sy, w, h, dx, dy, 1); - else - XCopyArea(xDisplay, xImagePixmap, XtWindow(widget), - xWinGc, sx, sy, w, h, dx, dy); - } else - XPutImage(xDisplay, XtWindow(widget), xWinGc, xImage, - sx, sy, dx, dy, w, h); -} - -void -ResizeProc() -{ - Dimension w_width, w_height; - int xo, yo, ww, wh; - XEvent fake_event; - Arg args[2]; - - if ((xOffset == 0) && (yOffset == 0)) - return; - - XtSetArg(args[0], XtNwidth, &w_width); - XtSetArg(args[1], XtNheight, &w_height); - XtGetValues(shellWidget, args, 2); - ww = w_width; - wh = w_height; - XtGetValues(listWidget, args, 2); - wh -= w_height; - - xo = xOffset; yo = yOffset; - - if ((xOffset + ww) >= tfImageWidth) - xOffset = MAX((int) tfImageWidth - ww, 0); - if ((yOffset + wh) >= tfImageHeight) - yOffset = MAX((int) tfImageHeight - wh, 0); - - /* - * Send an ExposeEvent if the origin changed. - * We have to do this because of the use and semantics of bit gravity. - */ - if ((xo != xOffset) || (yo != yOffset)) { - fake_event.type = Expose; - fake_event.xexpose.x = fake_event.xexpose.y = 0; - fake_event.xexpose.width = tfImageWidth; - fake_event.xexpose.height = tfImageHeight; - EventProc(imageWidget, NULL, &fake_event); - } -} - -int -XTiffErrorHandler(display, error_event) - Display *display; - XErrorEvent *error_event; -{ - char message[80]; - - /* - * Some X servers limit the size of pixmaps. - */ - if ((error_event->error_code == BadAlloc) - && (error_event->request_code == X_CreatePixmap)) - fprintf(stderr, "xtiff: requested pixmap too big for display\n"); - else { - XGetErrorText(display, error_event->error_code, message, 80); - fprintf(stderr, "xtiff: error code %s\n", message); - } - - exit(0); -} - -void -Usage() -{ - fprintf(stderr, "Usage xtiff: [options] tiff-file\n"); - fprintf(stderr, "\tstandard Xt options\n"); - fprintf(stderr, "\t[-help]\n"); - fprintf(stderr, "\t[-gamma gamma]\n"); - fprintf(stderr, "\t[-usePixmap (True | False)]\n"); - fprintf(stderr, "\t[-viewportWidth pixels]\n"); - fprintf(stderr, "\t[-viewportHeight pixels]\n"); - fprintf(stderr, "\t[-translate pixels]\n"); - fprintf(stderr, "\t[-verbose (True | False)]\n"); - exit(0); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/dbs/xtiff/xtifficon.h b/tiff/contrib/dbs/xtiff/xtifficon.h deleted file mode 100755 index 3eac48e..0000000 --- a/tiff/contrib/dbs/xtiff/xtifficon.h +++ /dev/null @@ -1,21 +0,0 @@ -#define xtifficon_width 32 -#define xtifficon_height 32 -static char xtifficon_bits[] = { - 0xff, 0x00, 0x00, 0xc0, 0xfe, 0x01, 0x7e, 0xc0, 0xfc, 0x03, 0x7e, 0x60, - 0xf8, 0x07, 0x06, 0x30, 0xf8, 0x07, 0x1e, 0x18, 0xf0, 0x0f, 0x1e, 0x0c, - 0xe0, 0x1f, 0x06, 0x06, 0xc0, 0x3f, 0x06, 0x06, 0xc0, 0x3f, 0x06, 0x03, - 0x80, 0x7f, 0x80, 0x01, 0x00, 0xff, 0xc0, 0x00, 0x00, 0xfe, 0x61, 0x00, - 0x00, 0xfe, 0x31, 0x7e, 0x7e, 0xfc, 0x33, 0x7e, 0x7e, 0xf8, 0x1b, 0x06, - 0x18, 0xf0, 0x0d, 0x1e, 0x18, 0xf0, 0x0e, 0x1e, 0x18, 0x60, 0x1f, 0x06, - 0x18, 0xb0, 0x3f, 0x06, 0x18, 0x98, 0x7f, 0x06, 0x18, 0x98, 0x7f, 0x00, - 0x00, 0x0c, 0xff, 0x00, 0x00, 0x06, 0xfe, 0x01, 0x00, 0x63, 0xfc, 0x03, - 0x80, 0x61, 0xfc, 0x03, 0xc0, 0x60, 0xf8, 0x07, 0xc0, 0x60, 0xf0, 0x0f, - 0x60, 0x60, 0xe0, 0x1f, 0x30, 0x60, 0xe0, 0x1f, 0x18, 0x60, 0xc0, 0x3f, - 0x0c, 0x60, 0x80, 0x7f, 0x06, 0x00, 0x00, 0xff}; -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/iptcutil/Makefile.am b/tiff/contrib/iptcutil/Makefile.am deleted file mode 100755 index 9caedf1..0000000 --- a/tiff/contrib/iptcutil/Makefile.am +++ /dev/null @@ -1,36 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -LIBTIFF = $(top_builddir)/libtiff/libtiff.la - -EXTRA_DIST = README test.iptc test.txt - -noinst_PROGRAMS = iptcutil - -iptcutil_SOURCES = iptcutil.c -iptcutil_LDADD = $(LIBTIFF) - -AM_CPPFLAGS = -I$(top_srcdir)/libtiff - diff --git a/tiff/contrib/iptcutil/Makefile.in b/tiff/contrib/iptcutil/Makefile.in deleted file mode 100755 index aac0aed..0000000 --- a/tiff/contrib/iptcutil/Makefile.in +++ /dev/null @@ -1,644 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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The -t says that the input is text, while the -b says - that the input is binary IPTC. You can use either the -i or the - -o switches to tell the program what the input and output files - will be, or use simple piping. - -Author: William T. Radcliffe (billr@corbis.com) - Parts of this program were derived from other places. The original - binary to text conversion was taken from the PHP distribution and - the tokenizer was written many years ago, by someone else as well. - -This software is provided freely "as is", without warranty of any kind, -express or implied, including but not limited to the warranties of -merchantability, fitness for a particular purpose and noninfringement. -In no event shall William T. Radcliffe be liable for any claim, damages or -other liability, whether in an action of contract, tort or otherwise, -arising from, out of or in connection with IPTCUTIL - diff --git a/tiff/contrib/iptcutil/iptcutil.c b/tiff/contrib/iptcutil/iptcutil.c deleted file mode 100755 index 32552ed..0000000 --- a/tiff/contrib/iptcutil/iptcutil.c +++ /dev/null @@ -1,943 +0,0 @@ -/* $Id: iptcutil.c,v 1.9 2014-12-26 16:10:08 bfriesen Exp $ */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_STRINGS_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef WIN32 -#define STRNICMP strnicmp -#else -#define STRNICMP strncasecmp -#endif - -typedef struct _tag_spec -{ - short - id; - - char - *name; -} tag_spec; - -static tag_spec tags[] = { - { 5,"Image Name" }, - { 7,"Edit Status" }, - { 10,"Priority" }, - { 15,"Category" }, - { 20,"Supplemental Category" }, - { 22,"Fixture Identifier" }, - { 25,"Keyword" }, - { 30,"Release Date" }, - { 35,"Release Time" }, - { 40,"Special Instructions" }, - { 45,"Reference Service" }, - { 47,"Reference Date" }, - { 50,"Reference Number" }, - { 55,"Created Date" }, - { 60,"Created Time" }, - { 65,"Originating Program" }, - { 70,"Program Version" }, - { 75,"Object Cycle" }, - { 80,"Byline" }, - { 85,"Byline Title" }, - { 90,"City" }, - { 95,"Province State" }, - { 100,"Country Code" }, - { 101,"Country" }, - { 103,"Original Transmission Reference" }, - { 105,"Headline" }, - { 110,"Credit" }, - { 115,"Source" }, - { 116,"Copyright String" }, - { 120,"Caption" }, - { 121,"Local Caption" }, - { 122,"Caption Writer" }, - { 200,"Custom Field 1" }, - { 201,"Custom Field 2" }, - { 202,"Custom Field 3" }, - { 203,"Custom Field 4" }, - { 204,"Custom Field 5" }, - { 205,"Custom Field 6" }, - { 206,"Custom Field 7" }, - { 207,"Custom Field 8" }, - { 208,"Custom Field 9" }, - { 209,"Custom Field 10" }, - { 210,"Custom Field 11" }, - { 211,"Custom Field 12" }, - { 212,"Custom Field 13" }, - { 213,"Custom Field 14" }, - { 214,"Custom Field 15" }, - { 215,"Custom Field 16" }, - { 216,"Custom Field 17" }, - { 217,"Custom Field 18" }, - { 218,"Custom Field 19" }, - { 219,"Custom Field 20" } -}; - -/* - * We format the output using HTML conventions - * to preserve control characters and such. - */ -void formatString(FILE *ofile, const char *s, int len) -{ - putc('"', ofile); - for (; len > 0; --len, ++s) { - int c = *s; - switch (c) { - case '&': - fputs("&", ofile); - break; -#ifdef HANDLE_GT_LT - case '<': - fputs("<", ofile); - break; - case '>': - fputs(">", ofile); - break; -#endif - case '"': - fputs(""", ofile); - break; - default: - if (iscntrl(c)) - fprintf(ofile, "&#%d;", c); - else - putc(*s, ofile); - break; - } - } - fputs("\"\n", ofile); -} - -typedef struct _html_code -{ - short - len; - const char - *code, - val; -} html_code; - -static html_code html_codes[] = { -#ifdef HANDLE_GT_LT - { 4,"<",'<' }, - { 4,">",'>' }, -#endif - { 5,"&",'&' }, - { 6,""",'"' } -}; - -/* - * This routine converts HTML escape sequence - * back to the original ASCII representation. - * - returns the number of characters dropped. - */ -int convertHTMLcodes(char *s, int len) -{ - if (len <=0 || s==(char*)NULL || *s=='\0') - return 0; - - if (s[1] == '#') - { - int val, o; - - if (sscanf(s,"&#%d;",&val) == 1) - { - o = 3; - while (s[o] != ';') - { - o++; - if (o > 5) - break; - } - if (o < 5) - strcpy(s+1, s+1+o); - *s = val; - return o; - } - } - else - { - int - i, - codes = sizeof(html_codes) / sizeof(html_code); - - for (i=0; i < codes; i++) - { - if (html_codes[i].len <= len) - if (STRNICMP(s, html_codes[i].code, html_codes[i].len) == 0) - { - strcpy(s+1, s+html_codes[i].len); - *s = html_codes[i].val; - return html_codes[i].len-1; - } - } - } - - return 0; -} - -int formatIPTC(FILE *ifile, FILE *ofile) -{ - unsigned int - foundiptc, - tagsfound; - - unsigned char - recnum, - dataset; - - char - *readable, - *str; - - long - tagindx, - taglen; - - int - i, - tagcount = sizeof(tags) / sizeof(tag_spec); - - char - c; - - foundiptc = 0; /* found the IPTC-Header */ - tagsfound = 0; /* number of tags found */ - - c = getc(ifile); - while (c != EOF) - { - if (c == 0x1c) - foundiptc = 1; - else - { - if (foundiptc) - return -1; - else - continue; - } - - /* we found the 0x1c tag and now grab the dataset and record number tags */ - dataset = getc(ifile); - if ((char) dataset == EOF) - return -1; - recnum = getc(ifile); - if ((char) recnum == EOF) - return -1; - /* try to match this record to one of the ones in our named table */ - for (i=0; i< tagcount; i++) - { - if (tags[i].id == recnum) - break; - } - if (i < tagcount) - readable = tags[i].name; - else - readable = ""; - - /* then we decode the length of the block that follows - long or short fmt */ - c = getc(ifile); - if (c == EOF) - return 0; - if (c & (unsigned char) 0x80) - { - unsigned char - buffer[4]; - - for (i=0; i<4; i++) - { - c = buffer[i] = getc(ifile); - if (c == EOF) - return -1; - } - taglen = (((long) buffer[ 0 ]) << 24) | - (((long) buffer[ 1 ]) << 16) | - (((long) buffer[ 2 ]) << 8) | - (((long) buffer[ 3 ])); - } - else - { - unsigned char - x = c; - - taglen = ((long) x) << 8; - x = getc(ifile); - if ((char)x == EOF) - return -1; - taglen |= (long) x; - } - /* make a buffer to hold the tag data and snag it from the input stream */ - str = (char *) malloc((unsigned int) (taglen+1)); - if (str == (char *) NULL) - { - printf("Memory allocation failed"); - return 0; - } - for (tagindx=0; tagindx 0) - fprintf(ofile, "%d#%d#%s=",(unsigned int)dataset, (unsigned int) recnum, readable); - else - fprintf(ofile, "%d#%d=",(unsigned int)dataset, (unsigned int) recnum); - formatString( ofile, str, taglen ); - free(str); - - tagsfound++; - - c = getc(ifile); - } - return tagsfound; -} - -int tokenizer(unsigned inflag,char *token,int tokmax,char *line, -char *white,char *brkchar,char *quote,char eschar,char *brkused, -int *next,char *quoted); - -char *super_fgets(char *b, int *blen, FILE *file) -{ - int - c, - len; - - char - *q; - - len=*blen; - for (q=b; ; q++) - { - c=fgetc(file); - if (c == EOF || c == '\n') - break; - if (((long)q - (long)b + 1 ) >= (long) len) - { - long - tlen; - - tlen=(long)q-(long)b; - len<<=1; - b=(char *) realloc((char *) b,(len+2)); - if ((char *) b == (char *) NULL) - break; - q=b+tlen; - } - *q=(unsigned char) c; - } - *blen=0; - if ((unsigned char *)b != (unsigned char *) NULL) - { - int - tlen; - - tlen=(long)q - (long)b; - if (tlen == 0) - return (char *) NULL; - b[tlen] = '\0'; - *blen=++tlen; - } - return b; -} - -#define BUFFER_SZ 4096 - -int main(int argc, char *argv[]) -{ - /* unsigned int */ - /* length; */ - - /*unsigned char - *buffer;*/ - - int - i, - mode; /* iptc binary, or iptc text */ - - FILE - *ifile = stdin, - *ofile = stdout; - - char - c, - *usage = "usage: iptcutil -t | -b [-i file] [-o file] output"; - - if( argc < 2 ) - { - puts(usage); - return 1; - } - - mode = 0; - /* length = -1; */ - /* buffer = (unsigned char *)NULL; */ - - for (i=1; i 0) - { - char - *s = &token[next-1]; - - len -= convertHTMLcodes(s, strlen(s)); - } - } - - fputc(0x1c, ofile); - fputc(dataset, ofile); - fputc(recnum, ofile); - if (len < 0x10000) - { - fputc((len >> 8) & 255, ofile); - fputc(len & 255, ofile); - } - else - { - fputc(((len >> 24) & 255) | 0x80, ofile); - fputc((len >> 16) & 255, ofile); - fputc((len >> 8) & 255, ofile); - fputc(len & 255, ofile); - } - next=0; - while (len--) - fputc(token[next++], ofile); - } - state++; - } - free(token); - token = (char *)NULL; - free(newstr); - newstr = (char *)NULL; - } - free(line); - - fclose( ifile ); - fclose( ofile ); - } - - return 0; -} - -/* - This routine is a generalized, finite state token parser. It allows - you extract tokens one at a time from a string of characters. The - characters used for white space, for break characters, and for quotes - can be specified. Also, characters in the string can be preceded by - a specifiable escape character which removes any special meaning the - character may have. - - There are a lot of formal parameters in this subroutine call, but - once you get familiar with them, this routine is fairly easy to use. - "#define" macros can be used to generate simpler looking calls for - commonly used applications of this routine. - - First, some terminology: - - token: used here, a single unit of information in - the form of a group of characters. - - white space: space that gets ignored (except within quotes - or when escaped), like blanks and tabs. in - addition, white space terminates a non-quoted - token. - - break character: a character that separates non-quoted tokens. - commas are a common break character. the - usage of break characters to signal the end - of a token is the same as that of white space, - except multiple break characters with nothing - or only white space between generate a null - token for each two break characters together. - - for example, if blank is set to be the white - space and comma is set to be the break - character, the line ... - - A, B, C , , DEF - - ... consists of 5 tokens: - - 1) "A" - 2) "B" - 3) "C" - 4) "" (the null string) - 5) "DEF" - - quote character: a character that, when surrounding a group - of other characters, causes the group of - characters to be treated as a single token, - no matter how many white spaces or break - characters exist in the group. also, a - token always terminates after the closing - quote. for example, if ' is the quote - character, blank is white space, and comma - is the break character, the following - string ... - - A, ' B, CD'EF GHI - - ... consists of 4 tokens: - - 1) "A" - 2) " B, CD" (note the blanks & comma) - 3) "EF" - 4) "GHI" - - the quote characters themselves do - not appear in the resultant tokens. the - double quotes are delimiters i use here for - documentation purposes only. - - escape character: a character which itself is ignored but - which causes the next character to be - used as is. ^ and \ are often used as - escape characters. an escape in the last - position of the string gets treated as a - "normal" (i.e., non-quote, non-white, - non-break, and non-escape) character. - for example, assume white space, break - character, and quote are the same as in the - above examples, and further, assume that - ^ is the escape character. then, in the - string ... - - ABC, ' DEF ^' GH' I ^ J K^ L ^ - - ... there are 7 tokens: - - 1) "ABC" - 2) " DEF ' GH" - 3) "I" - 4) " " (a lone blank) - 5) "J" - 6) "K L" - 7) "^" (passed as is at end of line) - - - OK, now that you have this background, here's how to call "tokenizer": - - result=tokenizer(flag,token,maxtok,string,white,break,quote,escape, - brkused,next,quoted) - - result: 0 if we haven't reached EOS (end of string), and - 1 if we have (this is an "int"). - - flag: right now, only the low order 3 bits are used. - 1 => convert non-quoted tokens to upper case - 2 => convert non-quoted tokens to lower case - 0 => do not convert non-quoted tokens - (this is a "char"). - - token: a character string containing the returned next token - (this is a "char[]"). - - maxtok: the maximum size of "token". characters beyond - "maxtok" are truncated (this is an "int"). - - string: the string to be parsed (this is a "char[]"). - - white: a string of the valid white spaces. example: - - char whitesp[]={" \t"}; - - blank and tab will be valid white space (this is - a "char[]"). - - break: a string of the valid break characters. example: - - char breakch[]={";,"}; - - semicolon and comma will be valid break characters - (this is a "char[]"). - - IMPORTANT: do not use the name "break" as a C - variable, as this is a reserved word in C. - - quote: a string of the valid quote characters. an example - would be - - char whitesp[]={"'\""); - - (this causes single and double quotes to be valid) - note that a token starting with one of these characters - needs the same quote character to terminate it. - - for example, - - "ABC ' - - is unterminated, but - - "DEF" and 'GHI' - - are properly terminated. note that different quote - characters can appear on the same line; only for - a given token do the quote characters have to be - the same (this is a "char[]"). - - escape: the escape character (NOT a string ... only one - allowed). use zero if none is desired (this is - a "char"). - - brkused: the break character used to terminate the current - token. if the token was quoted, this will be the - quote used. if the token is the last one on the - line, this will be zero (this is a pointer to a - "char"). - - next: this variable points to the first character of the - next token. it gets reset by "tokenizer" as it steps - through the string. set it to 0 upon initialization, - and leave it alone after that. you can change it - if you want to jump around in the string or re-parse - from the beginning, but be careful (this is a - pointer to an "int"). - - quoted: set to 1 (true) if the token was quoted and 0 (false) - if not. you may need this information (for example: - in C, a string with quotes around it is a character - string, while one without is an identifier). - - (this is a pointer to a "char"). -*/ - -/* states */ - -#define IN_WHITE 0 -#define IN_TOKEN 1 -#define IN_QUOTE 2 -#define IN_OZONE 3 - -int _p_state; /* current state */ -unsigned _p_flag; /* option flag */ -char _p_curquote; /* current quote char */ -int _p_tokpos; /* current token pos */ - -/* routine to find character in string ... used only by "tokenizer" */ - -int sindex(char ch,char *string) -{ - char *cp; - for(cp=string;*cp;++cp) - if(ch==*cp) - return (int)(cp-string); /* return postion of character */ - return -1; /* eol ... no match found */ -} - -/* routine to store a character in a string ... used only by "tokenizer" */ - -void chstore(char *string,int max,char ch) -{ - char c; - if(_p_tokpos>=0&&_p_tokpos=0) /* break */ - { - switch(_p_state) - { - case IN_WHITE: /* these are the same here ... */ - case IN_TOKEN: /* ... just get out */ - case IN_OZONE: /* ditto */ - ++(*next); - *brkused=brkchar[qp]; - goto byebye; - - case IN_QUOTE: /* just keep going */ - chstore(token,tokmax,c); - break; - } - } - else if((qp=sindex(c,quote))>=0) /* quote */ - { - switch(_p_state) - { - case IN_WHITE: /* these are identical, */ - _p_state=IN_QUOTE; /* change states */ - _p_curquote=quote[qp]; /* save quote char */ - *quoted=1; /* set to true as long as something is in quotes */ - break; - - case IN_QUOTE: - if(quote[qp]==_p_curquote) /* same as the beginning quote? */ - { - _p_state=IN_OZONE; - _p_curquote=0; - } - else - chstore(token,tokmax,c); /* treat as regular char */ - break; - - case IN_TOKEN: - case IN_OZONE: - *brkused=c; /* uses quote as break char */ - goto byebye; - } - } - else if((qp=sindex(c,white))>=0) /* white */ - { - switch(_p_state) - { - case IN_WHITE: - case IN_OZONE: - break; /* keep going */ - - case IN_TOKEN: - _p_state=IN_OZONE; - break; - - case IN_QUOTE: - chstore(token,tokmax,c); /* it's valid here */ - break; - } - } - else if(c==eschar) /* escape */ - { - nc=line[(*next)+1]; - if(nc==0) /* end of line */ - { - *brkused=0; - chstore(token,tokmax,c); - ++(*next); - goto byebye; - } - switch(_p_state) - { - case IN_WHITE: - --(*next); - _p_state=IN_TOKEN; - break; - - case IN_TOKEN: - case IN_QUOTE: - ++(*next); - chstore(token,tokmax,nc); - break; - - case IN_OZONE: - goto byebye; - } - } - else /* anything else is just a real character */ - { - switch(_p_state) - { - case IN_WHITE: - _p_state=IN_TOKEN; /* switch states */ - - case IN_TOKEN: /* these 2 are */ - case IN_QUOTE: /* identical here */ - chstore(token,tokmax,c); - break; - - case IN_OZONE: - goto byebye; - } - } - } /* end of main loop */ - -byebye: - token[_p_tokpos]=0; /* make sure token ends with EOS */ - - return 0; -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/iptcutil/test.iptc b/tiff/contrib/iptcutil/test.iptc deleted file mode 100755 index a260562..0000000 Binary files a/tiff/contrib/iptcutil/test.iptc and /dev/null differ diff --git a/tiff/contrib/iptcutil/test.txt b/tiff/contrib/iptcutil/test.txt deleted file mode 100755 index d518100..0000000 --- a/tiff/contrib/iptcutil/test.txt +++ /dev/null @@ -1,32 +0,0 @@ -2#0="�" -2#120#Caption="Chairman of the US House Judiciary Committee, Henry Hyde,R-IL, makes his opening statement during impeachment hearings 11 December on Capitol Hill in Washington, DC. The committee is debating the articles of impechment and my take a vote on the impeachment of US President BIll Clinton on charges that he obstucted justice, lied and abused the power of his office as early as today. AFP PHOTO Paul J. RICHARDS " -2#122#Caption Writer="kb/lt" -2#100#Country Code="USA" -2#105#Headline="Old fart squeezing two fingers." -2#30#Release Date="19981211" -2#35#Release Time="000000+0000" -2#40#Special Instructions="This is a test. This is only a test. ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890" -2#80#Byline="PAUL J. RICHARDS" -2#85#Byline Title="STF" -2#110#Credit="AFP" -2#65#Originating Program="MacDesk Reporter" -2#115#Source="AFP" -2#5#Image Name="US-HYDE" -2#55#Created Date="19981211" -2#90#City="WASHINGTON" -2#95#Province State="DC" -2#101#Country="UNITED STATES" -2#103#Original Transmission Reference="DCA03" -2#15#Category="POL" -2#20#Supplemental Category="GOVERNMENT" -2#10#Priority="5" -2#25#Keyword="fart" -2#25#Keyword="squeezing" -2#25#Keyword="old" -2#25#Keyword="fingers" -2#75#Object Cycle="a" -2#60#Created Time="000000+0000" -2#70#Program Version="2.0.3" -2#130="3S" -2#135="GB" -2#231="Kaya A. Hoffmann 12/14/98 12:00:44 PM Copy To : Selects - \\KINYANI\Selects������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������" diff --git a/tiff/contrib/mfs/Makefile.am b/tiff/contrib/mfs/Makefile.am deleted file mode 100755 index fb8a07e..0000000 --- a/tiff/contrib/mfs/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = README mfs_file.c - diff --git a/tiff/contrib/mfs/Makefile.in b/tiff/contrib/mfs/Makefile.in deleted file mode 100755 index fce0b9c..0000000 --- a/tiff/contrib/mfs/Makefile.in +++ /dev/null @@ -1,494 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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In my applications I had already read a TIFF or other format -file in to memory and did not want to waste I/O writing it out again -for libtiff's benefit. I therefore constructed a set of functions to -pass up to TIFFClientOpen to simulate a file in memory. I have attached -my mfs (memory file system) source code for you to use or junk, as you -see fit. :-) - -Once again, thanks very much for making my life simpler. - -Best Regards, - -Mike Johnson. diff --git a/tiff/contrib/mfs/mfs_file.c b/tiff/contrib/mfs/mfs_file.c deleted file mode 100755 index 6675e2a..0000000 --- a/tiff/contrib/mfs/mfs_file.c +++ /dev/null @@ -1,586 +0,0 @@ -/* --------------------------------------------------------------------------------- -- Module : mem_file.c -- Description : A general purpose library for manipulating a memory area -- as if it were a file. -- mfs_ stands for memory file system. -- Author : Mike Johnson - Banctec AB 03/07/96 -- --------------------------------------------------------------------------------- -*/ - -/* - -Copyright (c) 1996 Mike Johnson -Copyright (c) 1996 BancTec AB - -Permission to use, copy, modify, distribute, and sell this software -for any purpose is hereby granted without fee, provided -that (i) the above copyright notices and this permission notice appear in -all copies of the software and related documentation, and (ii) the names of -Mike Johnson and BancTec may not be used in any advertising or -publicity relating to the software. - -THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - -IN NO EVENT SHALL MIKE JOHNSON OR BANCTEC BE LIABLE FOR -ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -OF THIS SOFTWARE. - -*/ - - -/* --------------------------------------------------------------------------------- -- Includes --------------------------------------------------------------------------------- -*/ - -#include -#include -#include - -/* --------------------------------------------------------------------------------- -- Definitions --------------------------------------------------------------------------------- -*/ - -#define MAX_BUFFS 20 -#define FALSE 0 -#define TRUE 1 - -/* --------------------------------------------------------------------------------- -- Globals --------------------------------------------------------------------------------- -*/ - -static char *buf[MAX_BUFFS]; /* Memory for each open buf */ -static long buf_off[MAX_BUFFS]; /* File pointer for each buf */ -static long buf_size[MAX_BUFFS]; /* Count of bytes allocated for each buf */ -static long fds[MAX_BUFFS]; /* File descriptor status */ -static int buf_mode[MAX_BUFFS]; /* Mode of buffer (r, w, a) */ - -static int library_init_done = FALSE; - - -/* --------------------------------------------------------------------------------- -- Function prototypes --------------------------------------------------------------------------------- -*/ - -int mfs_open (void *ptr, int size, char *mode); -int mfs_lseek (int fd, int offset, int whence); -int mfs_read (int fd, void *buf, int size); -int mfs_write (int fd, void *buf, int size); -int mfs_size (int fd); -int mfs_map (int fd, char **addr, size_t *len); -int mfs_unmap (int fd); -int mfs_close (int fd); -static int extend_mem_file (int fd, int size); -static void mem_init (); - -/* --------------------------------------------------------------------------------- -- Function code --------------------------------------------------------------------------------- -*/ - -/* --------------------------------------------------------------------------------- -- Function : mfs_open () -- -- Arguments : Pointer to allocated buffer, initial size of buffer, -- mode spec (r, w, a) -- -- Returns : File descriptor or -1 if error. -- -- Description : Register this area of memory (which has been allocated -- and has a file read into it) under the mem_file library. -- A file descriptor is returned which can the be passed -- back to TIFFClientOpen and used as if it was a disk -- based fd. -- If the call is for mode 'w' then pass (void *)NULL as -- the buffer and zero size and the library will -- allocate memory for you. -- If the mode is append then pass (void *)NULL and size -- zero or with a valid address. -- --------------------------------------------------------------------------------- -*/ - -int mfs_open (void *buffer, int size, char *mode) -{ - int ret, i; - void *tmp; - - if (library_init_done == FALSE) - { - mem_init (); - library_init_done = TRUE; - } - - ret = -1; - - /* Find a free fd */ - - for (i = 0; i < MAX_BUFFS; i++) - { - if (fds[i] == -1) - { - ret = i; - break; - } - } - - if (i == MAX_BUFFS) /* No more free descriptors */ - { - ret = -1; - errno = EMFILE; - } - - if (ret >= 0 && *mode == 'r') - { - if (buffer == (void *)NULL) - { - ret = -1; - errno = EINVAL; - } - else - { - buf[ret] = (char *)buffer; - buf_size[ret] = size; - buf_off[ret] = 0; - } - } - else if (ret >= 0 && *mode == 'w') - { - - if (buffer != (void *)NULL) - { - ret = -1; - errno = EINVAL; - } - - else - { - tmp = malloc (0); /* Get a pointer */ - if (tmp == (void *)NULL) - { - ret = -1; - errno = EDQUOT; - } - else - { - buf[ret] = (char *)tmp; - buf_size[ret] = 0; - buf_off[ret] = 0; - } - } - } - else if (ret >= 0 && *mode == 'a') - { - if (buffer == (void *) NULL) /* Create space for client */ - { - tmp = malloc (0); /* Get a pointer */ - if (tmp == (void *)NULL) - { - ret = -1; - errno = EDQUOT; - } - else - { - buf[ret] = (char *)tmp; - buf_size[ret] = 0; - buf_off[ret] = 0; - } - } - else /* Client has file read in already */ - { - buf[ret] = (char *)buffer; - buf_size[ret] = size; - buf_off[ret] = 0; - } - } - else /* Some other invalid combination of parameters */ - { - ret = -1; - errno = EINVAL; - } - - if (ret != -1) - { - fds[ret] = 0; - buf_mode[ret] = *mode; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_lseek () -- -- Arguments : File descriptor, offset, whence -- -- Returns : as per man lseek (2) -- -- Description : Does the same as lseek (2) except on a memory based file. -- Note: the memory area will be extended if the caller -- attempts to seek past the current end of file (memory). -- --------------------------------------------------------------------------------- -*/ - -int mfs_lseek (int fd, int offset, int whence) -{ - int ret; - long test_off; - - if (fds[fd] == -1) /* Not open */ - { - ret = -1; - errno = EBADF; - } - else if (offset < 0 && whence == SEEK_SET) - { - ret = -1; - errno = EINVAL; - } - else - { - switch (whence) - { - case SEEK_SET: - if (offset > buf_size[fd]) - extend_mem_file (fd, offset); - buf_off[fd] = offset; - ret = offset; - break; - - case SEEK_CUR: - test_off = buf_off[fd] + offset; - - if (test_off < 0) - { - ret = -1; - errno = EINVAL; - } - else - { - if (test_off > buf_size[fd]) - extend_mem_file (fd, test_off); - buf_off[fd] = test_off; - ret = test_off; - } - break; - - case SEEK_END: - test_off = buf_size[fd] + offset; - - if (test_off < 0) - { - ret = -1; - errno = EINVAL; - } - else - { - if (test_off > buf_size[fd]) - extend_mem_file (fd, test_off); - buf_off[fd] = test_off; - ret = test_off; - } - break; - - default: - errno = EINVAL; - ret = -1; - break; - } - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_read () -- -- Arguments : File descriptor, buffer, size -- -- Returns : as per man read (2) -- -- Description : Does the same as read (2) except on a memory based file. -- Note: An attempt to read past the end of memory currently -- allocated to the file will return 0 (End Of File) -- --------------------------------------------------------------------------------- -*/ - -int mfs_read (int fd, void *clnt_buf, int size) -{ - int ret; - - if (fds[fd] == -1 || buf_mode[fd] != 'r') - { - /* File is either not open, or not opened for read */ - - ret = -1; - errno = EBADF; - } - else if (buf_off[fd] + size > buf_size[fd]) - { - ret = 0; /* EOF */ - } - else - { - memcpy (clnt_buf, (void *) (buf[fd] + buf_off[fd]), size); - buf_off[fd] = buf_off[fd] + size; - ret = size; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_write () -- -- Arguments : File descriptor, buffer, size -- -- Returns : as per man write (2) -- -- Description : Does the same as write (2) except on a memory based file. -- Note: the memory area will be extended if the caller -- attempts to write past the current end of file (memory). -- --------------------------------------------------------------------------------- -*/ - -int mfs_write (int fd, void *clnt_buf, int size) -{ - int ret; - - if (fds[fd] == -1 || buf_mode[fd] == 'r') - { - /* Either the file is not open or it is opened for reading only */ - - ret = -1; - errno = EBADF; - } - else if (buf_mode[fd] == 'w') - { - /* Write */ - - if (buf_off[fd] + size > buf_size[fd]) - { - extend_mem_file (fd, buf_off[fd] + size); - buf_size[fd] = (buf_off[fd] + size); - } - - memcpy ((buf[fd] + buf_off[fd]), clnt_buf, size); - buf_off[fd] = buf_off[fd] + size; - - ret = size; - } - else - { - /* Append */ - - if (buf_off[fd] != buf_size[fd]) - buf_off[fd] = buf_size[fd]; - - extend_mem_file (fd, buf_off[fd] + size); - buf_size[fd] += size; - - memcpy ((buf[fd] + buf_off[fd]), clnt_buf, size); - buf_off[fd] = buf_off[fd] + size; - - ret = size; - } - - return (ret); -} - -/* --------------------------------------------------------------------------------- -- Function : mfs_size () -- -- Arguments : File descriptor -- -- Returns : integer file size -- -- Description : This function returns the current size of the file in bytes. -- --------------------------------------------------------------------------------- -*/ - -int mfs_size (int fd) -{ - int ret; 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It is provided -- to satisfy the MapProc function in libtiff. 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Poelman (WSAT)" -Subject: Potential TIFF library additions - -Delivery-Date: Fri, 01 Aug 1997 19:21:06 -0700 - -Sam, - -You probably don't remember me, but I sent in a couple of bug fixes -regarding the TIFF library about a 16 months ago or so... - -I just wanted to send you two other additions that I have made to our -local version of the TIFF library in hopes that you will want to -incorporate them into your next major release of the TIFF library. -(These additions are based on TIFF version 3.4beta31, but they sit on -top of the library so they shouldn't be much trouble to incorporate them -into any more recent version.) They are internally documented to a -reasonable extent and we've been successfully using them in our code -here for over a year. If you think they would make good additions to the -TIFF library, I'd be happy to clean them up more, document them more, -and/or integrate them with the latest version of the TIFF library, but I -figured I'd see if you were interested in using them before I went to -all that trouble. - -TIFF Image Iterator -------------------- -Your ReadRGBA() routine works well for reading many different formats -(TILED, STIP, compressed or not, etc.) of the most basic types of data -(RGB, 8-bit greyscale, 8-bit colormapped) into an SGI-style data array, -and serves as a good template for users with other needs. I used it as -an exmaple of how to make an iterator which, rather than fill a data -array, calls an arbitrary user-supplied callback function for each -"chunk" of data - that "chunk" might be a strip or a tile, and might -have one sample-per-pixel or two, and might be 8-bit data or 16-bit or -24-bit. The callback function can do whatever it wants with the data - -store it in a big array, convert it to RGBA, or draw it directly to the -screen. I was able to use this iterator to read 16-bit greyscale and 32- -and 64-bit floating point data, which wasn't possible with ReadRGBA(). - -I have tested this routine with 8- and 16-bit greyscale data as well as -with 32- and 64-bit floating point data. I believe nearly all of our -data is organized in strips, so actually I'd appreciate it if you had -some tiled images that I could test it with. - -It should certainly be possible and would be cleanest to reimplement -ReadRGBA() in terms of the image iterator, but I haven't done that. - - -Private Sub-Directory Read/Write --------------------------------- -TIFF-PL is a Phillips Laboratory extension to the TIFF tags that allows -us to store satellite imaging-specific information in a TIFF format, -such as the satellite's trajectory, the imaging time, etc. In order to -give us the flexibility to modify the tag definitions without getting -approval from the TIFF committee every time, we were given only three -TIFF tags - a PL signature, a PL version number, and PL directory -offset, which lists the position in the file at which to find a private -sub-directory of tags-value pairs. So I wrote two routines: -TIFFWritePrivateDataSubDirectory(), which takes a list of tags and a -"get" function and writes the tag values into the TIFF file, returning -the offset within the file at which it wrote the directory; and -TIFFReadPrivateDataSubDirectory(), which takes an offset, a list of -tags, and a "set" function and reads all the data from the private -directory. The functions themselves are pretty simple. (The files are -huge because I had to basically copy all of the tif_dirread.c and -tif_dirwrite.c files in order to access the various fetching routines -which were all declared static and therefore inaccessible in the TIFF -library.) - - -I'm including the four source files (tif_imgiter.h, tif_imgiter.c, -tif_pdsdirread.c, tif_pdsdirwrite.c) in case you want to take a look at -them. I can also send you some sample code that uses them if you like. -If you're interested in having them incorporated into the standard TIFF -library, I'd be happy to do that integration and clean up and document -the routines. (For example, I've already realized that instead of -limiting the SEP callback function to three bands (R,G,B) it should take -an array to enable the handling of n-banded multi-spectral data...) If -not, I'll just leave them as they are, since they work fine for us now. - -Holler if you have any questions. - --- Conrad -__________________________________________________________________ - Capt Conrad J. Poelman PL/WSAT (Phillips Laboratory) - 505-846-4347 3550 Aberdeen Ave SE - (FAX) 505-846-4374 Kirtland AFB, NM 87117-5776 - diff --git a/tiff/contrib/pds/tif_imageiter.c b/tiff/contrib/pds/tif_imageiter.c deleted file mode 100755 index e025dc5..0000000 --- a/tiff/contrib/pds/tif_imageiter.c +++ /dev/null @@ -1,525 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/contrib/pds/tif_imageiter.c,v 1.4 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * Copyright (c) 1991-1996 Sam Leffler - * Copyright (c) 1991-1996 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Written by Conrad J. Poelman, PL/WSAT, Kirtland AFB, NM on 26 Mar 96. - * - * This file contains code to allow a calling program to "iterate" over each - * pixels in an image as it is read from the file. The iterator takes care of - * reading strips versus (possibly clipped) tiles, decoding the information - * according to the decoding method, and so on, so that calling program can - * ignore those details. The calling program does, however, need to be - * conscious of the type of the pixel data that it is receiving. - * - * For reasons of efficiency, the callback function actually gets called for - * "blocks" of pixels rather than for individual pixels. The format of the - * callback arguments is given below. - * - * This code was taken from TIFFReadRGBAImage() in tif_getimage.c of the original - * TIFF distribution, and simplified and generalized to provide this general - * iteration capability. Those routines could certainly be re-implemented in terms - * of a TIFFImageIter if desired. - * - */ -#include "tiffiop.h" -#include "tif_imageiter.h" -#include -#include - -static int gtTileContig(TIFFImageIter*, void *udata, uint32, uint32); -static int gtTileSeparate(TIFFImageIter*, void *udata, uint32, uint32); -static int gtStripContig(TIFFImageIter*, void *udata, uint32, uint32); -static int gtStripSeparate(TIFFImageIter*, void *udata, uint32, uint32); - -static const char photoTag[] = "PhotometricInterpretation"; - -static int -isCCITTCompression(TIFF* tif) -{ - uint16 compress; - TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); - return (compress == COMPRESSION_CCITTFAX3 || - compress == COMPRESSION_CCITTFAX4 || - compress == COMPRESSION_CCITTRLE || - compress == COMPRESSION_CCITTRLEW); -} - -int -TIFFImageIterBegin(TIFFImageIter* img, TIFF* tif, int stop, char emsg[1024]) -{ - uint16* sampleinfo; - uint16 extrasamples; - uint16 planarconfig; - int colorchannels; - - img->tif = tif; - img->stoponerr = stop; - TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample); - img->alpha = 0; - TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); - TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, - &extrasamples, &sampleinfo); - if (extrasamples == 1) - switch (sampleinfo[0]) { - case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */ - case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */ - img->alpha = sampleinfo[0]; - break; - } - colorchannels = img->samplesperpixel - extrasamples; - TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig); - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) { - switch (colorchannels) { - case 1: - if (isCCITTCompression(tif)) - img->photometric = PHOTOMETRIC_MINISWHITE; - else - img->photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: - img->photometric = PHOTOMETRIC_RGB; - break; - default: - sprintf(emsg, "Missing needed %s tag", photoTag); - return (0); - } - } - switch (img->photometric) { - case PHOTOMETRIC_PALETTE: - if (!TIFFGetField(tif, TIFFTAG_COLORMAP, - &img->redcmap, &img->greencmap, &img->bluecmap)) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Missing required \"Colormap\" tag"); - return (0); - } - /* fall thru... */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: -/* This should work now so skip the check - BSR - if (planarconfig == PLANARCONFIG_CONTIG && img->samplesperpixel != 1) { - sprintf(emsg, - "Sorry, can not handle contiguous data with %s=%d, and %s=%d", - photoTag, img->photometric, - "Samples/pixel", img->samplesperpixel); - return (0); - } - */ - break; - case PHOTOMETRIC_YCBCR: - if (planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d", - "Planarconfiguration", planarconfig); - return (0); - } - /* It would probably be nice to have a reality check here. */ - { uint16 compress; - TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); - if (compress == COMPRESSION_JPEG && planarconfig == PLANARCONFIG_CONTIG) { - /* can rely on libjpeg to convert to RGB */ - /* XXX should restore current state on exit */ - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - img->photometric = PHOTOMETRIC_RGB; - } - } - break; - case PHOTOMETRIC_RGB: - if (colorchannels < 3) { - sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", - "Color channels", colorchannels); - return (0); - } - break; - case PHOTOMETRIC_SEPARATED: { - uint16 inkset; - TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); - if (inkset != INKSET_CMYK) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "InkSet", inkset); - return (0); - } - if (img->samplesperpixel != 4) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "Samples/pixel", img->samplesperpixel); - return (0); - } - break; - } - default: - sprintf(emsg, "Sorry, can not handle image with %s=%d", - photoTag, img->photometric); - return (0); - } - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); - - TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); - switch (img->orientation) { - case ORIENTATION_BOTRIGHT: - case ORIENTATION_RIGHTBOT: /* XXX */ - case ORIENTATION_LEFTBOT: /* XXX */ - TIFFWarning(TIFFFileName(tif), "using bottom-left orientation"); - img->orientation = ORIENTATION_BOTLEFT; - /* fall thru... */ - case ORIENTATION_BOTLEFT: - break; - case ORIENTATION_TOPRIGHT: - case ORIENTATION_RIGHTTOP: /* XXX */ - case ORIENTATION_LEFTTOP: /* XXX */ - default: - TIFFWarning(TIFFFileName(tif), "using top-left orientation"); - img->orientation = ORIENTATION_TOPLEFT; - /* fall thru... */ - case ORIENTATION_TOPLEFT: - break; - } - - img->isContig = - !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1); - if (img->isContig) { - img->get = TIFFIsTiled(tif) ? gtTileContig : gtStripContig; - } else { - img->get = TIFFIsTiled(tif) ? gtTileSeparate : gtStripSeparate; - } - return (1); -} - -int -TIFFImageIterGet(TIFFImageIter* img, void *udata, uint32 w, uint32 h) -{ - if (img->get == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No \"get\" routine setup"); - return (0); - } - if (img->callback.any == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), - "No \"put\" routine setupl; probably can not handle image format"); - return (0); - } - return (*img->get)(img, udata, w, h); -} - -TIFFImageIterEnd(TIFFImageIter* img) -{ - /* Nothing to free... ? */ -} - -/* - * Read the specified image into an ABGR-format raster. - */ -int -TIFFReadImageIter(TIFF* tif, - uint32 rwidth, uint32 rheight, uint8* raster, int stop) -{ - char emsg[1024]; - TIFFImageIter img; - int ok; - - if (TIFFImageIterBegin(&img, tif, stop, emsg)) { - /* XXX verify rwidth and rheight against width and height */ - ok = TIFFImageIterGet(&img, raster, rwidth, img.height); - TIFFImageIterEnd(&img); - } else { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), emsg); - ok = 0; - } - return (ok); -} - - -/* - * Get an tile-organized image that has - * PlanarConfiguration contiguous if SamplesPerPixel > 1 - * or - * SamplesPerPixel == 1 - */ -static int -gtTileContig(TIFFImageIter* img, void *udata, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - ImageIterTileContigRoutine callback = img->callback.contig; - uint16 orientation; - uint32 col, row; - uint32 tw, th; - u_char* buf; - int32 fromskew; - uint32 nrow; - - buf = (u_char*) _TIFFmalloc(TIFFTileSize(tif)); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); - return (0); - } - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - orientation = img->orientation; - for (row = 0; row < h; row += th) { - nrow = (row + th > h ? h - row : th); - for (col = 0; col < w; col += tw) { - if (TIFFReadTile(tif, buf, col, row, 0, 0) < 0 && img->stoponerr) - break; - if (col + tw > w) { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - uint32 npix = w - col; - fromskew = tw - npix; - (*callback)(img, udata, col, row, npix, nrow, fromskew, buf); - } else { - (*callback)(img, udata, col, row, tw, nrow, 0, buf); - } - } - } - _TIFFfree(buf); - return (1); -} - -/* - * Get an tile-organized image that has - * SamplesPerPixel > 1 - * PlanarConfiguration separated - * We assume that all such images are RGB. - */ -static int -gtTileSeparate(TIFFImageIter* img, void *udata, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - ImageIterTileSeparateRoutine callback = img->callback.separate; - uint16 orientation; - uint32 col, row; - uint32 tw, th; - u_char* buf; - u_char* r; - u_char* g; - u_char* b; - u_char* a; - tsize_t tilesize; - int32 fromskew; - int alpha = img->alpha; - uint32 nrow; - - tilesize = TIFFTileSize(tif); - buf = (u_char*) _TIFFmalloc(4*tilesize); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); - return (0); - } - r = buf; - g = r + tilesize; - b = g + tilesize; - a = b + tilesize; - if (!alpha) - memset(a, 0xff, tilesize); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - orientation = img->orientation; - for (row = 0; row < h; row += th) { - nrow = (row + th > h ? h - row : th); - for (col = 0; col < w; col += tw) { - if (TIFFReadTile(tif, r, col, row,0,0) < 0 && img->stoponerr) - break; - if (TIFFReadTile(tif, g, col, row,0,1) < 0 && img->stoponerr) - break; - if (TIFFReadTile(tif, b, col, row,0,2) < 0 && img->stoponerr) - break; - if (alpha && TIFFReadTile(tif,a,col,row,0,3) < 0 && img->stoponerr) - break; - if (col + tw > w) { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - uint32 npix = w - col; - fromskew = tw - npix; - (*callback)(img, udata, col, row, npix, nrow, fromskew, r, g, b, a); - } else { - (*callback)(img, udata, col, row, tw, nrow, 0, r, g, b, a); - } - } - } - _TIFFfree(buf); - return (1); -} - -/* - * Get a strip-organized image that has - * PlanarConfiguration contiguous if SamplesPerPixel > 1 - * or - * SamplesPerPixel == 1 - */ -static int -gtStripContig(TIFFImageIter* img, void *udata, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - ImageIterTileContigRoutine callback = img->callback.contig; - uint16 orientation; - uint32 row, nrow; - u_char* buf; - uint32 rowsperstrip; - uint32 imagewidth = img->width; - tsize_t scanline; - int32 fromskew; - - buf = (u_char*) _TIFFmalloc(TIFFStripSize(tif)); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer"); - return (0); - } - orientation = img->orientation; - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += rowsperstrip) { - nrow = (row + rowsperstrip > h ? h - row : rowsperstrip); - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 0), - buf, nrow*scanline) < 0 && img->stoponerr) - break; - (*callback)(img, udata, 0, row, w, nrow, fromskew, buf); - } - _TIFFfree(buf); - return (1); -} - -/* - * Get a strip-organized image with - * SamplesPerPixel > 1 - * PlanarConfiguration separated - * We assume that all such images are RGB. - */ -static int -gtStripSeparate(TIFFImageIter* img, void *udata, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - ImageIterTileSeparateRoutine callback = img->callback.separate; - uint16 orientation; - u_char *buf; - u_char *r, *g, *b, *a; - uint32 row, nrow; - tsize_t scanline; - uint32 rowsperstrip; - uint32 imagewidth = img->width; - tsize_t stripsize; - int32 fromskew; - int alpha = img->alpha; - - stripsize = TIFFStripSize(tif); - r = buf = (u_char *)_TIFFmalloc(4*stripsize); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); - return (0); - } - g = r + stripsize; - b = g + stripsize; - a = b + stripsize; - if (!alpha) - memset(a, 0xff, stripsize); - orientation = img->orientation; - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += rowsperstrip) { - nrow = (row + rowsperstrip > h ? h - row : rowsperstrip); - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 0), - r, nrow*scanline) < 0 && img->stoponerr) - break; - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 1), - g, nrow*scanline) < 0 && img->stoponerr) - break; - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 2), - b, nrow*scanline) < 0 && img->stoponerr) - break; - if (alpha && - (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 3), - a, nrow*scanline) < 0 && img->stoponerr)) - break; - (*callback)(img, udata, 0, row, w, nrow, fromskew, r, g, b, a); - } - _TIFFfree(buf); - return (1); -} - -DECLAREContigCallbackFunc(TestContigCallback) -{ - printf("Contig Callback called with x = %d, y = %d, w = %d, h = %d, fromskew = %d\n", - x, y, w, h, fromskew); -} - - -DECLARESepCallbackFunc(TestSepCallback) -{ - printf("Sep Callback called with x = %d, y = %d, w = %d, h = %d, fromskew = %d\n", - x, y, w, h, fromskew); -} - - -#ifdef MAIN -main(int argc, char **argv) -{ - char emsg[1024]; - TIFFImageIter img; - int ok; - int stop = 1; - - TIFF *tif; - unsigned long nx, ny; - unsigned short BitsPerSample, SamplesPerPixel; - int isColorMapped, isPliFile; - unsigned char *ColorMap; - unsigned char *data; - - if (argc < 2) { - fprintf(stderr,"usage: %s tiff_file\n",argv[0]); - exit(1); - } - tif = (TIFF *)PLIGetImage(argv[1], (void *) &data, &ColorMap, - &nx, &ny, &BitsPerSample, &SamplesPerPixel, - &isColorMapped, &isPliFile); - if (tif != NULL) { - - if (TIFFImageIterBegin(&img, tif, stop, emsg)) { - /* Here need to set data and callback function! */ - if (img.isContig) { - img.callback = TestContigCallback; - } else { - img.callback = TestSepCallback; - } - ok = TIFFImageIterGet(&img, NULL, img.width, img.height); - TIFFImageIterEnd(&img); - } else { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), emsg); - } - } - -} -#endif -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/pds/tif_imageiter.h b/tiff/contrib/pds/tif_imageiter.h deleted file mode 100755 index e7dbe46..0000000 --- a/tiff/contrib/pds/tif_imageiter.h +++ /dev/null @@ -1,64 +0,0 @@ -typedef struct _TIFFImageIter TIFFImageIter; - -/* The callback function is called for each "block" of image pixel data after - it has been read from the file and decoded. This image pixel data is in the - buffer pp, and this data represents the image pixels from (x,y) to - (x+w,y+h). It is stored in pixel format, so each pixel contains - img->samplesperpixel consecutive samples each containing img->bitspersample - bits of data. The array pp is ordered in h consecutive rows of w+fromskew - pixels each. */ -typedef void (*ImageIterTileContigRoutine) - (TIFFImageIter*, void *, uint32, uint32, uint32, uint32, int32, - unsigned char*); -#define DECLAREContigCallbackFunc(name) \ -static void name(\ - TIFFImageIter* img, \ - void* user_data, \ - uint32 x, uint32 y, \ - uint32 w, uint32 h, \ - int32 fromskew, \ - u_char* pp \ -) - -typedef void (*ImageIterTileSeparateRoutine) - (TIFFImageIter*, void *, uint32, uint32, uint32, uint32, int32, - unsigned char*, unsigned char*, unsigned char*, unsigned char*); -#define DECLARESepCallbackFunc(name) \ -static void name(\ - TIFFImageIter* img, \ - void* user_data, \ - uint32 x, uint32 y, \ - uint32 w, uint32 h,\ - int32 fromskew, \ - u_char* r, u_char* g, u_char* b, u_char* a\ -) - -struct _TIFFImageIter { - TIFF* tif; /* image handle */ - int stoponerr; /* stop on read error */ - int isContig; /* data is packed/separate */ - int alpha; /* type of alpha data present */ - uint32 width; /* image width */ - uint32 height; /* image height */ - uint16 bitspersample; /* image bits/sample */ - uint16 samplesperpixel; /* image samples/pixel */ - uint16 orientation; /* image orientation */ - uint16 photometric; /* image photometric interp */ - uint16* redcmap; /* colormap pallete */ - uint16* greencmap; - uint16* bluecmap; - /* get image data routine */ - int (*get)(TIFFImageIter*, void *udata, uint32, uint32); - union { - void (*any)(TIFFImageIter*); - ImageIterTileContigRoutine contig; - ImageIterTileSeparateRoutine separate; - } callback; /* fn to exec for each block */ -}; -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/pds/tif_pdsdirread.c b/tiff/contrib/pds/tif_pdsdirread.c deleted file mode 100755 index 37e513a..0000000 --- a/tiff/contrib/pds/tif_pdsdirread.c +++ /dev/null @@ -1,1131 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/contrib/pds/tif_pdsdirread.c,v 1.4 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1996 Sam Leffler - * Copyright (c) 1991-1996 Silicon Graphics, Inc. - * Copyright (c( 1996 USAF Phillips Laboratory - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * These routines written by Conrad J. Poelman on a single late-night of - * March 20-21, 1996. - * - * The entire purpose of this file is to provide a single external function, - * TIFFReadPrivateDataSubDirectory(). This function is intended for use in reading a - * private subdirectory from a TIFF file into a private structure. The - * actual writing of data into the structure is handled by the setFieldFn(), - * which is passed to TIFFReadPrivateDataSubDirectory() as a parameter. The idea is to - * enable any application wishing to store private subdirectories to do so - * easily using this function, without modifying the TIFF library. - * - * The astute observer will notice that only two functions are at all different - * from the original tif_dirread.c file: TIFFReadPrivateDataSubDirectory() and - * TIFFFetchNormalSubTag(). All the other stuff that makes this file so huge - * is only necessary because all of those functions are declared static in - * tif_dirread.c, so we have to totally duplicate them in order to use them. - * - * Oh, also note the bug fix in TIFFFetchFloat(). - * - */ - -#include "tiffiop.h" - -#define IGNORE 0 /* tag placeholder used below */ - -#if HAVE_IEEEFP -#define TIFFCvtIEEEFloatToNative(tif, n, fp) -#define TIFFCvtIEEEDoubleToNative(tif, n, dp) -#else -extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*); -extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*); -#endif - -static void EstimateStripByteCounts(TIFF*, TIFFDirEntry*, uint16); -static void MissingRequired(TIFF*, const char*); -static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32); -static tsize_t TIFFFetchData(TIFF*, TIFFDirEntry*, char*); -static tsize_t TIFFFetchString(TIFF*, TIFFDirEntry*, char*); -static float TIFFFetchRational(TIFF*, TIFFDirEntry*); -static int TIFFFetchNormalSubTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*, - int (*getFieldFn)(TIFF *tif,ttag_t tag,...)); -static int TIFFFetchPerSampleShorts(TIFF*, TIFFDirEntry*, int*); -static int TIFFFetchPerSampleAnys(TIFF*, TIFFDirEntry*, double*); -static int TIFFFetchShortArray(TIFF*, TIFFDirEntry*, uint16*); -static int TIFFFetchStripThing(TIFF*, TIFFDirEntry*, long, uint32**); -static int TIFFFetchExtraSamples(TIFF*, TIFFDirEntry*); -static int TIFFFetchRefBlackWhite(TIFF*, TIFFDirEntry*); -static float TIFFFetchFloat(TIFF*, TIFFDirEntry*); -static int TIFFFetchFloatArray(TIFF*, TIFFDirEntry*, float*); -static int TIFFFetchDoubleArray(TIFF*, TIFFDirEntry*, double*); -static int TIFFFetchAnyArray(TIFF*, TIFFDirEntry*, double*); -static int TIFFFetchShortPair(TIFF*, TIFFDirEntry*); -#if STRIPCHOP_SUPPORT -static void ChopUpSingleUncompressedStrip(TIFF*); -#endif - -static char * -CheckMalloc(TIFF* tif, tsize_t n, const char* what) -{ - char *cp = (char*)_TIFFmalloc(n); - if (cp == NULL) - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space %s", what); - return (cp); -} - -/* Just as was done with TIFFWritePrivateDataSubDirectory(), here we implement - TIFFReadPrivateDataSubDirectory() which takes an offset into the TIFF file, - a TIFFFieldInfo structure specifying the types of the various tags, - and a function to use to set individual tags when they are encountered. - The data is read from the file, translated using the TIFF library's - built-in machine-independent conversion functions, and filled into - private subdirectory structure. - - This code was written by copying the original TIFFReadDirectory() function - from tif_dirread.c and paring it down to what is needed for this. - - It is the caller's responsibility to allocate and initialize the internal - structure that setFieldFn() will be writing into. If this function is being - called more than once before closing the file, the caller also must be - careful to free data in the structure before re-initializing. - - It is also the caller's responsibility to verify the presence of - any required fields after reading the directory in. -*/ - - -int -TIFFReadPrivateDataSubDirectory(TIFF* tif, toff_t pdir_offset, - TIFFFieldInfo *field_info, - int (*setFieldFn)(TIFF *tif, ttag_t tag, ...)) -{ - register TIFFDirEntry* dp; - register int n; - register TIFFDirectory* td; - TIFFDirEntry* dir; - int iv; - long v; - double dv; - const TIFFFieldInfo* fip; - int fix; - uint16 dircount; - uint32 nextdiroff; - char* cp; - int diroutoforderwarning = 0; - - /* Skipped part about checking for directories or compression data. */ - - if (!isMapped(tif)) { - if (!SeekOK(tif, pdir_offset)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Seek error accessing TIFF private subdirectory"); - return (0); - } - if (!ReadOK(tif, &dircount, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Can not read TIFF private subdirectory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)CheckMalloc(tif, - dircount * sizeof (TIFFDirEntry), "to read TIFF private subdirectory"); - if (dir == NULL) - return (0); - if (!ReadOK(tif, dir, dircount*sizeof (TIFFDirEntry))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Can not read TIFF private subdirectory"); - goto bad; - } - /* - * Read offset to next directory for sequential scans. - */ - (void) ReadOK(tif, &nextdiroff, sizeof (uint32)); - } else { - toff_t off = pdir_offset; - - if (off + sizeof (short) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Can not read TIFF private subdirectory count"); - return (0); - } else - _TIFFmemcpy(&dircount, tif->tif_base + off, sizeof (uint16)); - off += sizeof (uint16); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dir = (TIFFDirEntry *)CheckMalloc(tif, - dircount * sizeof (TIFFDirEntry), "to read TIFF private subdirectory"); - if (dir == NULL) - return (0); - if (off + dircount*sizeof (TIFFDirEntry) > tif->tif_size) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Can not read TIFF private subdirectory"); - goto bad; - } else - _TIFFmemcpy(dir, tif->tif_base + off, - dircount*sizeof (TIFFDirEntry)); - off += dircount* sizeof (TIFFDirEntry); - if (off + sizeof (uint32) < tif->tif_size) - _TIFFmemcpy(&nextdiroff, tif->tif_base+off, sizeof (uint32)); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextdiroff); - - /* - * Setup default value and then make a pass over - * the fields to check type and tag information, - * and to extract info required to size data - * structures. A second pass is made afterwards - * to read in everthing not taken in the first pass. - */ - td = &tif->tif_dir; - - for (fip = field_info, dp = dir, n = dircount; - n > 0; n--, dp++) { - if (tif->tif_flags & TIFF_SWAB) { - TIFFSwabArrayOfShort(&dp->tdir_tag, 2); - TIFFSwabArrayOfLong(&dp->tdir_count, 2); - } - /* - * Find the field information entry for this tag. - */ - /* - * Silicon Beach (at least) writes unordered - * directory tags (violating the spec). Handle - * it here, but be obnoxious (maybe they'll fix it?). - */ - if (dp->tdir_tag < fip->field_tag) { - if (!diroutoforderwarning) { - TIFFWarning(tif->tif_name, - "invalid TIFF private subdirectory; tags are not sorted in ascending order"); - diroutoforderwarning = 1; - } - fip = field_info; /* O(n^2) */ - } - - while (fip->field_tag && fip->field_tag < dp->tdir_tag) - fip++; - if (!fip->field_tag || fip->field_tag != dp->tdir_tag) { - TIFFWarning(tif->tif_name, - "unknown field with tag %d (0x%x) in private subdirectory ignored", - dp->tdir_tag, dp->tdir_tag); - dp->tdir_tag = IGNORE; - fip = field_info;/* restart search */ - continue; - } - /* - * Null out old tags that we ignore. - */ - - /* Not implemented yet, since FIELD_IGNORE is specific to - the main directories. Could pass this in too... */ - if (0 /* && fip->field_bit == FIELD_IGNORE */) { - ignore: - dp->tdir_tag = IGNORE; - continue; - } - - /* - * Check data type. - */ - - while (dp->tdir_type != (u_short)fip->field_type) { - if (fip->field_type == TIFF_ANY) /* wildcard */ - break; - fip++; - if (!fip->field_tag || fip->field_tag != dp->tdir_tag) { - TIFFWarning(tif->tif_name, - "wrong data type %d for \"%s\"; tag ignored", - dp->tdir_type, fip[-1].field_name); - goto ignore; - } - } - /* - * Check count if known in advance. - */ - if (fip->field_readcount != TIFF_VARIABLE) { - uint32 expected = (fip->field_readcount == TIFF_SPP) ? - (uint32) td->td_samplesperpixel : - (uint32) fip->field_readcount; - if (!CheckDirCount(tif, dp, expected)) - goto ignore; - } - - /* Now read in and process data from field. */ - if (!TIFFFetchNormalSubTag(tif, dp, fip, setFieldFn)) - goto bad; - - } - - if (dir) - _TIFFfree(dir); - return (1); -bad: - if (dir) - _TIFFfree(dir); - return (0); -} - -static void -EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) -{ - register TIFFDirEntry *dp; - register TIFFDirectory *td = &tif->tif_dir; - uint16 i; - - if (td->td_stripbytecount) - _TIFFfree(td->td_stripbytecount); - td->td_stripbytecount = (uint32*) - CheckMalloc(tif, td->td_nstrips * sizeof (uint32), - "for \"StripByteCounts\" array"); - if (td->td_compression != COMPRESSION_NONE) { - uint32 space = (uint32)(sizeof (TIFFHeader) - + sizeof (uint16) - + (dircount * sizeof (TIFFDirEntry)) - + sizeof (uint32)); - toff_t filesize = TIFFGetFileSize(tif); - uint16 n; - - /* calculate amount of space used by indirect values */ - for (dp = dir, n = dircount; n > 0; n--, dp++) { - uint32 cc = dp->tdir_count*TIFFDataWidth(dp->tdir_type); - if (cc > sizeof (uint32)) - space += cc; - } - space = (filesize - space) / td->td_samplesperpixel; - for (i = 0; i < td->td_nstrips; i++) - td->td_stripbytecount[i] = space; - /* - * This gross hack handles the case were the offset to - * the last strip is past the place where we think the strip - * should begin. Since a strip of data must be contiguous, - * it's safe to assume that we've overestimated the amount - * of data in the strip and trim this number back accordingly. - */ - i--; - if (td->td_stripoffset[i] + td->td_stripbytecount[i] > filesize) - td->td_stripbytecount[i] = - filesize - td->td_stripoffset[i]; - } else { - uint32 rowbytes = TIFFScanlineSize(tif); - uint32 rowsperstrip = td->td_imagelength / td->td_nstrips; - for (i = 0; i < td->td_nstrips; i++) - td->td_stripbytecount[i] = rowbytes*rowsperstrip; - } - TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); - if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) - td->td_rowsperstrip = td->td_imagelength; -} - -static void -MissingRequired(TIFF* tif, const char* tagname) -{ - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "TIFF directory is missing required \"%s\" field", tagname); -} - -/* - * Check the count field of a directory - * entry against a known value. The caller - * is expected to skip/ignore the tag if - * there is a mismatch. - */ -static int -CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) -{ - if (count != dir->tdir_count) { - TIFFWarning(tif->tif_name, - "incorrect count for field \"%s\" (%lu, expecting %lu); tag ignored", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, - dir->tdir_count, count); - return (0); - } - return (1); -} - -/* - * Fetch a contiguous directory item. - */ -static tsize_t -TIFFFetchData(TIFF* tif, TIFFDirEntry* dir, char* cp) -{ - int w = TIFFDataWidth(dir->tdir_type); - tsize_t cc = dir->tdir_count * w; - - if (!isMapped(tif)) { - if (!SeekOK(tif, dir->tdir_offset)) - goto bad; - if (!ReadOK(tif, cp, cc)) - goto bad; - } else { - if (dir->tdir_offset + cc > tif->tif_size) - goto bad; - _TIFFmemcpy(cp, tif->tif_base + dir->tdir_offset, cc); - } - if (tif->tif_flags & TIFF_SWAB) { - switch (dir->tdir_type) { - case TIFF_SHORT: - case TIFF_SSHORT: - TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count); - break; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count); - break; - case TIFF_DOUBLE: - TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count); - break; - } - } - return (cc); -bad: - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error fetching data for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - return ((tsize_t) 0); -} - -/* - * Fetch an ASCII item from the file. - */ -static tsize_t -TIFFFetchString(TIFF* tif, TIFFDirEntry* dir, char* cp) -{ - if (dir->tdir_count <= 4) { - uint32 l = dir->tdir_offset; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&l); - _TIFFmemcpy(cp, &l, dir->tdir_count); - return (1); - } - return (TIFFFetchData(tif, dir, cp)); -} - -/* - * Convert numerator+denominator to float. - */ -static int -cvtRational(TIFF* tif, TIFFDirEntry* dir, uint32 num, uint32 denom, float* rv) -{ - if (denom == 0) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s: Rational with zero denominator (num = %lu)", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name, num); - return (0); - } else { - if (dir->tdir_type == TIFF_RATIONAL) - *rv = ((float)num / (float)denom); - else - *rv = ((float)(int32)num / (float)(int32)denom); - return (1); - } -} - -/* - * Fetch a rational item from the file - * at offset off and return the value - * as a floating point number. - */ -static float -TIFFFetchRational(TIFF* tif, TIFFDirEntry* dir) -{ - uint32 l[2]; - float v; - - return (!TIFFFetchData(tif, dir, (char *)l) || - !cvtRational(tif, dir, l[0], l[1], &v) ? 1.0f : v); -} - -/* - * Fetch a single floating point value - * from the offset field and return it - * as a native float. - */ -static float -TIFFFetchFloat(TIFF* tif, TIFFDirEntry* dir) -{ - /* This appears to be a flagrant bug in the TIFF library, yet I - actually don't understand how it could have ever worked the old - way. Look at the comments in my new code and you'll understand. */ -#if (0) - float v = (float) - TIFFExtractData(tif, dir->tdir_type, dir->tdir_offset); - TIFFCvtIEEEFloatToNative(tif, 1, &v); -#else - float v; - /* This is a little bit tricky - if we just cast the uint32 to a float, - C will perform a numerical conversion, which is not what we want. - We want to take the actual bit pattern in the uint32 and interpret - it as a float. Thus we cast a uint32 * into a float * and then - dereference to get v. */ - uint32 l = (uint32) - TIFFExtractData(tif, dir->tdir_type, dir->tdir_offset); - v = * (float *) &l; - TIFFCvtIEEEFloatToNative(tif, 1, &v); -#endif - return (v); - -} - -/* - * Fetch an array of BYTE or SBYTE values. - */ -static int -TIFFFetchByteArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) -{ - if (dir->tdir_count <= 4) { - /* - * Extract data from offset field. - */ - if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { - switch (dir->tdir_count) { - case 4: v[3] = dir->tdir_offset & 0xff; - case 3: v[2] = (dir->tdir_offset >> 8) & 0xff; - case 2: v[1] = (dir->tdir_offset >> 16) & 0xff; - case 1: v[0] = dir->tdir_offset >> 24; - } - } else { - switch (dir->tdir_count) { - case 4: v[3] = dir->tdir_offset >> 24; - case 3: v[2] = (dir->tdir_offset >> 16) & 0xff; - case 2: v[1] = (dir->tdir_offset >> 8) & 0xff; - case 1: v[0] = dir->tdir_offset & 0xff; - } - } - return (1); - } else - return (TIFFFetchData(tif, dir, (char*) v) != 0); /* XXX */ -} - -/* - * Fetch an array of SHORT or SSHORT values. - */ -static int -TIFFFetchShortArray(TIFF* tif, TIFFDirEntry* dir, uint16* v) -{ - if (dir->tdir_count <= 2) { - if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { - switch (dir->tdir_count) { - case 2: v[1] = dir->tdir_offset & 0xffff; - case 1: v[0] = dir->tdir_offset >> 16; - } - } else { - switch (dir->tdir_count) { - case 2: v[1] = dir->tdir_offset >> 16; - case 1: v[0] = dir->tdir_offset & 0xffff; - } - } - return (1); - } else - return (TIFFFetchData(tif, dir, (char *)v) != 0); -} - -/* - * Fetch a pair of SHORT or BYTE values. - */ -static int -TIFFFetchShortPair(TIFF* tif, TIFFDirEntry* dir) -{ - uint16 v[2]; - int ok = 0; - - switch (dir->tdir_type) { - case TIFF_SHORT: - case TIFF_SSHORT: - ok = TIFFFetchShortArray(tif, dir, v); - break; - case TIFF_BYTE: - case TIFF_SBYTE: - ok = TIFFFetchByteArray(tif, dir, v); - break; - } - if (ok) - TIFFSetField(tif, dir->tdir_tag, v[0], v[1]); - return (ok); -} - -/* - * Fetch an array of LONG or SLONG values. - */ -static int -TIFFFetchLongArray(TIFF* tif, TIFFDirEntry* dir, uint32* v) -{ - if (dir->tdir_count == 1) { - v[0] = dir->tdir_offset; - return (1); - } else - return (TIFFFetchData(tif, dir, (char*) v) != 0); -} - -/* - * Fetch an array of RATIONAL or SRATIONAL values. - */ -static int -TIFFFetchRationalArray(TIFF* tif, TIFFDirEntry* dir, float* v) -{ - int ok = 0; - uint32* l; - - l = (uint32*)CheckMalloc(tif, - dir->tdir_count*TIFFDataWidth(dir->tdir_type), - "to fetch array of rationals"); - if (l) { - if (TIFFFetchData(tif, dir, (char *)l)) { - uint32 i; - for (i = 0; i < dir->tdir_count; i++) { - ok = cvtRational(tif, dir, - l[2*i+0], l[2*i+1], &v[i]); - if (!ok) - break; - } - } - _TIFFfree((char *)l); - } - return (ok); -} - -/* - * Fetch an array of FLOAT values. - */ -static int -TIFFFetchFloatArray(TIFF* tif, TIFFDirEntry* dir, float* v) -{ - - if (dir->tdir_count == 1) { - v[0] = *(float*) &dir->tdir_offset; - TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v); - return (1); - } else if (TIFFFetchData(tif, dir, (char*) v)) { - TIFFCvtIEEEFloatToNative(tif, dir->tdir_count, v); - return (1); - } else - return (0); -} - -/* - * Fetch an array of DOUBLE values. - */ -static int -TIFFFetchDoubleArray(TIFF* tif, TIFFDirEntry* dir, double* v) -{ - if (TIFFFetchData(tif, dir, (char*) v)) { - TIFFCvtIEEEDoubleToNative(tif, dir->tdir_count, v); - return (1); - } else - return (0); -} - -/* - * Fetch an array of ANY values. The actual values are - * returned as doubles which should be able hold all the - * types. Yes, there really should be an tany_t to avoid - * this potential non-portability ... Note in particular - * that we assume that the double return value vector is - * large enough to read in any fundamental type. We use - * that vector as a buffer to read in the base type vector - * and then convert it in place to double (from end - * to front of course). - */ -static int -TIFFFetchAnyArray(TIFF* tif, TIFFDirEntry* dir, double* v) -{ - int i; - - switch (dir->tdir_type) { - case TIFF_BYTE: - case TIFF_SBYTE: - if (!TIFFFetchByteArray(tif, dir, (uint16*) v)) - return (0); - if (dir->tdir_type == TIFF_BYTE) { - uint16* vp = (uint16*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } else { - int16* vp = (int16*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } - break; - case TIFF_SHORT: - case TIFF_SSHORT: - if (!TIFFFetchShortArray(tif, dir, (uint16*) v)) - return (0); - if (dir->tdir_type == TIFF_SHORT) { - uint16* vp = (uint16*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } else { - int16* vp = (int16*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } - break; - case TIFF_LONG: - case TIFF_SLONG: - if (!TIFFFetchLongArray(tif, dir, (uint32*) v)) - return (0); - if (dir->tdir_type == TIFF_LONG) { - uint32* vp = (uint32*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } else { - int32* vp = (int32*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - if (!TIFFFetchRationalArray(tif, dir, (float*) v)) - return (0); - { float* vp = (float*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } - break; - case TIFF_FLOAT: - if (!TIFFFetchFloatArray(tif, dir, (float*) v)) - return (0); - { float* vp = (float*) v; - for (i = dir->tdir_count-1; i >= 0; i--) - v[i] = vp[i]; - } - break; - case TIFF_DOUBLE: - return (TIFFFetchDoubleArray(tif, dir, (double*) v)); - default: - /* TIFF_NOTYPE */ - /* TIFF_ASCII */ - /* TIFF_UNDEFINED */ - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot read TIFF_ANY type %d for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - return (0); - } - return (1); -} - - -/* - * Fetch a tag that is not handled by special case code. - */ -/* The standard function TIFFFetchNormalTag() could definitely be replaced - with a simple call to this function, just adding TIFFSetField() as the - last argument. */ -static int -TIFFFetchNormalSubTag(TIFF* tif, TIFFDirEntry* dp, const TIFFFieldInfo* fip, - int (*setFieldFn)(TIFF *tif, ttag_t tag, ...)) -{ - static char mesg[] = "to fetch tag value"; - int ok = 0; - - if (dp->tdir_count > 1) { /* array of values */ - char* cp = NULL; - - switch (dp->tdir_type) { - case TIFF_BYTE: - case TIFF_SBYTE: - /* NB: always expand BYTE values to shorts */ - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (uint16), mesg); - ok = cp && TIFFFetchByteArray(tif, dp, (uint16*) cp); - break; - case TIFF_SHORT: - case TIFF_SSHORT: - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (uint16), mesg); - ok = cp && TIFFFetchShortArray(tif, dp, (uint16*) cp); - break; - case TIFF_LONG: - case TIFF_SLONG: - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (uint32), mesg); - ok = cp && TIFFFetchLongArray(tif, dp, (uint32*) cp); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (float), mesg); - ok = cp && TIFFFetchRationalArray(tif, dp, (float*) cp); - break; - case TIFF_FLOAT: - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (float), mesg); - ok = cp && TIFFFetchFloatArray(tif, dp, (float*) cp); - break; - case TIFF_DOUBLE: - cp = CheckMalloc(tif, - dp->tdir_count * sizeof (double), mesg); - ok = cp && TIFFFetchDoubleArray(tif, dp, (double*) cp); - break; - case TIFF_ASCII: - case TIFF_UNDEFINED: /* bit of a cheat... */ - /* - * Some vendors write strings w/o the trailing - * NULL byte, so always append one just in case. - */ - cp = CheckMalloc(tif, dp->tdir_count+1, mesg); - if (ok = (cp && TIFFFetchString(tif, dp, cp))) - cp[dp->tdir_count] = '\0'; /* XXX */ - break; - } - if (ok) { - ok = (fip->field_passcount ? - (*setFieldFn)(tif, dp->tdir_tag, dp->tdir_count, cp) - : (*setFieldFn)(tif, dp->tdir_tag, cp)); - } - if (cp != NULL) - _TIFFfree(cp); - } else if (CheckDirCount(tif, dp, 1)) { /* singleton value */ - switch (dp->tdir_type) { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - /* - * If the tag is also acceptable as a LONG or SLONG - * then (*setFieldFn) will expect an uint32 parameter - * passed to it (through varargs). Thus, for machines - * where sizeof (int) != sizeof (uint32) we must do - * a careful check here. It's hard to say if this - * is worth optimizing. - * - * NB: We use TIFFFieldWithTag here knowing that - * it returns us the first entry in the table - * for the tag and that that entry is for the - * widest potential data type the tag may have. - */ - { TIFFDataType type = fip->field_type; - if (type != TIFF_LONG && type != TIFF_SLONG) { - uint16 v = (uint16) - TIFFExtractData(tif, dp->tdir_type, dp->tdir_offset); - ok = (fip->field_passcount ? - (*setFieldFn)(tif, dp->tdir_tag, 1, &v) - : (*setFieldFn)(tif, dp->tdir_tag, v)); - break; - } - } - /* fall thru... */ - case TIFF_LONG: - case TIFF_SLONG: - { uint32 v32 = - TIFFExtractData(tif, dp->tdir_type, dp->tdir_offset); - ok = (fip->field_passcount ? - (*setFieldFn)(tif, dp->tdir_tag, 1, &v32) - : (*setFieldFn)(tif, dp->tdir_tag, v32)); - } - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - { float v = (dp->tdir_type == TIFF_FLOAT ? - TIFFFetchFloat(tif, dp) - : TIFFFetchRational(tif, dp)); - ok = (fip->field_passcount ? - (*setFieldFn)(tif, dp->tdir_tag, 1, &v) - : (*setFieldFn)(tif, dp->tdir_tag, v)); - } - break; - case TIFF_DOUBLE: - { double v; - ok = (TIFFFetchDoubleArray(tif, dp, &v) && - (fip->field_passcount ? - (*setFieldFn)(tif, dp->tdir_tag, 1, &v) - : (*setFieldFn)(tif, dp->tdir_tag, v)) - ); - } - break; - case TIFF_ASCII: - case TIFF_UNDEFINED: /* bit of a cheat... */ - { char c[2]; - if (ok = (TIFFFetchString(tif, dp, c) != 0)) { - c[1] = '\0'; /* XXX paranoid */ - ok = (*setFieldFn)(tif, dp->tdir_tag, c); - } - } - break; - } - } - return (ok); -} - -/* Everything after this is exactly duplicated from the standard tif_dirread.c - file, necessitated by the fact that they are declared static there so - we can't call them! -*/ -#define NITEMS(x) (sizeof (x) / sizeof (x[0])) -/* - * Fetch samples/pixel short values for - * the specified tag and verify that - * all values are the same. - */ -static int -TIFFFetchPerSampleShorts(TIFF* tif, TIFFDirEntry* dir, int* pl) -{ - int samples = tif->tif_dir.td_samplesperpixel; - int status = 0; - - if (CheckDirCount(tif, dir, (uint32) samples)) { - uint16 buf[10]; - uint16* v = buf; - - if (samples > NITEMS(buf)) - v = (uint16*) _TIFFmalloc(samples * sizeof (uint16)); - if (TIFFFetchShortArray(tif, dir, v)) { - int i; - for (i = 1; i < samples; i++) - if (v[i] != v[0]) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot handle different per-sample values for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - goto bad; - } - *pl = v[0]; - status = 1; - } - bad: - if (v != buf) - _TIFFfree((char*) v); - } - return (status); -} - -/* - * Fetch samples/pixel ANY values for - * the specified tag and verify that - * all values are the same. - */ -static int -TIFFFetchPerSampleAnys(TIFF* tif, TIFFDirEntry* dir, double* pl) -{ - int samples = (int) tif->tif_dir.td_samplesperpixel; - int status = 0; - - if (CheckDirCount(tif, dir, (uint32) samples)) { - double buf[10]; - double* v = buf; - - if (samples > NITEMS(buf)) - v = (double*) _TIFFmalloc(samples * sizeof (double)); - if (TIFFFetchAnyArray(tif, dir, v)) { - int i; - for (i = 1; i < samples; i++) - if (v[i] != v[0]) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot handle different per-sample values for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - goto bad; - } - *pl = v[0]; - status = 1; - } - bad: - if (v != buf) - _TIFFfree(v); - } - return (status); -} -#undef NITEMS - -/* - * Fetch a set of offsets or lengths. - * While this routine says "strips", - * in fact it's also used for tiles. - */ -static int -TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, long nstrips, uint32** lpp) -{ - register uint32* lp; - int status; - - if (!CheckDirCount(tif, dir, (uint32) nstrips)) - return (0); - /* - * Allocate space for strip information. - */ - if (*lpp == NULL && - (*lpp = (uint32 *)CheckMalloc(tif, - nstrips * sizeof (uint32), "for strip array")) == NULL) - return (0); - lp = *lpp; - if (dir->tdir_type == (int)TIFF_SHORT) { - /* - * Handle uint16->uint32 expansion. - */ - uint16* dp = (uint16*) CheckMalloc(tif, - dir->tdir_count* sizeof (uint16), "to fetch strip tag"); - if (dp == NULL) - return (0); - if (status = TIFFFetchShortArray(tif, dir, dp)) { - register uint16* wp = dp; - while (nstrips-- > 0) - *lp++ = *wp++; - } - _TIFFfree((char*) dp); - } else - status = TIFFFetchLongArray(tif, dir, lp); - return (status); -} - -#define NITEMS(x) (sizeof (x) / sizeof (x[0])) -/* - * Fetch and set the ExtraSamples tag. - */ -static int -TIFFFetchExtraSamples(TIFF* tif, TIFFDirEntry* dir) -{ - uint16 buf[10]; - uint16* v = buf; - int status; - - if (dir->tdir_count > NITEMS(buf)) - v = (uint16*) _TIFFmalloc(dir->tdir_count * sizeof (uint16)); - if (dir->tdir_type == TIFF_BYTE) - status = TIFFFetchByteArray(tif, dir, v); - else - status = TIFFFetchShortArray(tif, dir, v); - if (status) - status = TIFFSetField(tif, dir->tdir_tag, dir->tdir_count, v); - if (v != buf) - _TIFFfree((char*) v); - return (status); -} -#undef NITEMS - -#ifdef COLORIMETRY_SUPPORT -/* - * Fetch and set the RefBlackWhite tag. - */ -static int -TIFFFetchRefBlackWhite(TIFF* tif, TIFFDirEntry* dir) -{ - static char mesg[] = "for \"ReferenceBlackWhite\" array"; - char* cp; - int ok; - - if (dir->tdir_type == TIFF_RATIONAL) - return (1/*TIFFFetchNormalTag(tif, dir) just so linker won't complain - this part of the code is never used anyway */); - /* - * Handle LONG's for backward compatibility. - */ - cp = CheckMalloc(tif, dir->tdir_count * sizeof (uint32), mesg); - if (ok = (cp && TIFFFetchLongArray(tif, dir, (uint32*) cp))) { - float* fp = (float*) - CheckMalloc(tif, dir->tdir_count * sizeof (float), mesg); - if (ok = (fp != NULL)) { - uint32 i; - for (i = 0; i < dir->tdir_count; i++) - fp[i] = (float)((uint32*) cp)[i]; - ok = TIFFSetField(tif, dir->tdir_tag, fp); - _TIFFfree((char*) fp); - } - } - if (cp) - _TIFFfree(cp); - return (ok); -} -#endif - -#if STRIPCHOP_SUPPORT -/* - * Replace a single strip (tile) of uncompressed data by - * multiple strips (tiles), each approximately 8Kbytes. - * This is useful for dealing with large images or - * for dealing with machines with a limited amount - * memory. - */ -static void -ChopUpSingleUncompressedStrip(TIFF* tif) -{ - register TIFFDirectory *td = &tif->tif_dir; - uint32 bytecount = td->td_stripbytecount[0]; - uint32 offset = td->td_stripoffset[0]; - tsize_t rowbytes = TIFFVTileSize(tif, 1), stripbytes; - tstrip_t strip, nstrips, rowsperstrip; - uint32* newcounts; - uint32* newoffsets; - - /* - * Make the rows hold at least one - * scanline, but fill 8k if possible. - */ - if (rowbytes > 8192) { - stripbytes = rowbytes; - rowsperstrip = 1; - } else { - rowsperstrip = 8192 / rowbytes; - stripbytes = rowbytes * rowsperstrip; - } - /* never increase the number of strips in an image */ - if (rowsperstrip >= td->td_rowsperstrip) - return; - nstrips = (tstrip_t) TIFFhowmany(bytecount, stripbytes); - newcounts = (uint32*) CheckMalloc(tif, nstrips * sizeof (uint32), - "for chopped \"StripByteCounts\" array"); - newoffsets = (uint32*) CheckMalloc(tif, nstrips * sizeof (uint32), - "for chopped \"StripOffsets\" array"); - if (newcounts == NULL || newoffsets == NULL) { - /* - * Unable to allocate new strip information, give - * up and use the original one strip information. - */ - if (newcounts != NULL) - _TIFFfree(newcounts); - if (newoffsets != NULL) - _TIFFfree(newoffsets); - return; - } - /* - * Fill the strip information arrays with - * new bytecounts and offsets that reflect - * the broken-up format. - */ - for (strip = 0; strip < nstrips; strip++) { - if (stripbytes > bytecount) - stripbytes = bytecount; - newcounts[strip] = stripbytes; - newoffsets[strip] = offset; - offset += stripbytes; - bytecount -= stripbytes; - } - /* - * Replace old single strip info with multi-strip info. - */ - td->td_stripsperimage = td->td_nstrips = nstrips; - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - _TIFFfree(td->td_stripbytecount); - _TIFFfree(td->td_stripoffset); - td->td_stripbytecount = newcounts; - td->td_stripoffset = newoffsets; -} -#endif /* STRIPCHOP_SUPPORT */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/pds/tif_pdsdirwrite.c b/tiff/contrib/pds/tif_pdsdirwrite.c deleted file mode 100755 index 3c632da..0000000 --- a/tiff/contrib/pds/tif_pdsdirwrite.c +++ /dev/null @@ -1,971 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/contrib/pds/tif_pdsdirwrite.c,v 1.4 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* When writing data to TIFF files, it is often useful to store application- - specific data in a private TIFF directory so that the tags don't need to - be registered and won't conflict with other people's user-defined tags. - One needs to have a registered public tag which contains some amount of - raw data. That raw data, however, is interpreted at an independent, - separate, private tiff directory. This file provides some routines which - will be useful for converting that data from its raw binary form into - the proper form for your application. -*/ - -/* - * Copyright (c) 1988-1996 Sam Leffler - * Copyright (c) 1991-1996 Silicon Graphics, Inc. - * Copyright (c( 1996 USAF Phillips Laboratory - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * These routines written by Conrad J. Poelman on a single late-night of - * March 20-21, 1996. - * - * The entire purpose of this file is to provide a single external function, - * TIFFWritePrivateDataSubDirectory(). This function is intended for use - * in writing a private subdirectory structure into a TIFF file. The - * actual reading of data from the structure is handled by the getFieldFn(), - * which is passed to TIFFWritePrivateDataSubDirectory() as a parameter. The - * idea is to enable any application wishing to read private subdirectories to - * do so easily using this function, without modifying the TIFF library. - * - * The astute observer will notice that only two functions are at all different - * from the original tif_dirwrite.c file: TIFFWritePrivateDataSubDirectory()and - * TIFFWriteNormalSubTag(). All the other stuff that makes this file so huge - * is only necessary because all of those functions are declared static in - * tif_dirwrite.c, so we have to totally duplicate them in order to use them. - * - * Oh, also please note the bug-fix in the routine TIFFWriteNormalSubTag(), - * which equally should be applied to TIFFWriteNormalTag(). - * - */ -#include "tiffiop.h" - -#if HAVE_IEEEFP -#define TIFFCvtNativeToIEEEFloat(tif, n, fp) -#define TIFFCvtNativeToIEEEDouble(tif, n, dp) -#else -extern void TIFFCvtNativeToIEEEFloat(TIFF*, uint32, float*); -extern void TIFFCvtNativeToIEEEDouble(TIFF*, uint32, double*); -#endif - -static int TIFFWriteNormalTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*); -static int TIFFWriteNormalSubTag(TIFF*, TIFFDirEntry*, const TIFFFieldInfo*, - int (*getFieldFn)(TIFF *tif,ttag_t tag,...)); -static void TIFFSetupShortLong(TIFF*, ttag_t, TIFFDirEntry*, uint32); -static int TIFFSetupShortPair(TIFF*, ttag_t, TIFFDirEntry*); -static int TIFFWritePerSampleShorts(TIFF*, ttag_t, TIFFDirEntry*); -static int TIFFWritePerSampleAnys(TIFF*, TIFFDataType, ttag_t, TIFFDirEntry*); -static int TIFFWriteShortTable(TIFF*, ttag_t, TIFFDirEntry*, uint32, uint16**); -static int TIFFWriteShortArray(TIFF*, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, uint16*); -static int TIFFWriteLongArray(TIFF *, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, uint32*); -static int TIFFWriteRationalArray(TIFF *, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, float*); -static int TIFFWriteFloatArray(TIFF *, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, float*); -static int TIFFWriteDoubleArray(TIFF *, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*); -static int TIFFWriteByteArray(TIFF*, TIFFDirEntry*, char*); -static int TIFFWriteAnyArray(TIFF*, - TIFFDataType, ttag_t, TIFFDirEntry*, uint32, double*); -#ifdef COLORIMETRY_SUPPORT -static int TIFFWriteTransferFunction(TIFF*, TIFFDirEntry*); -#endif -static int TIFFWriteData(TIFF*, TIFFDirEntry*, char*); -static int TIFFLinkDirectory(TIFF*); - -#define WriteRationalPair(type, tag1, v1, tag2, v2) { \ - if (!TIFFWriteRational(tif, type, tag1, dir, v1)) \ - goto bad; \ - if (!TIFFWriteRational(tif, type, tag2, dir+1, v2)) \ - goto bad; \ - dir++; \ -} -#define TIFFWriteRational(tif, type, tag, dir, v) \ - TIFFWriteRationalArray((tif), (type), (tag), (dir), 1, &(v)) -#ifndef TIFFWriteRational -static int TIFFWriteRational(TIFF*, - TIFFDataType, ttag_t, TIFFDirEntry*, float); -#endif - -/* This function will write an entire directory to the disk, and return the - offset value indicating where in the file it wrote the beginning of the - directory structure. This is NOT the same as the offset value before - calling this function, because some of the fields may have caused various - data items to be written out BEFORE writing the directory structure. - - This code was basically written by ripping of the TIFFWriteDirectory() - code and generalizing it, using RPS's TIFFWritePliIfd() code for - inspiration. My original goal was to make this code general enough that - the original TIFFWriteDirectory() could be rewritten to just call this - function with the appropriate field and field-accessing arguments. - - However, now I realize that there's a lot of code that gets executed for - the main, standard TIFF directories that does not apply to special - private subdirectories, so such a reimplementation for the sake of - eliminating redundant or duplicate code is probably not possible, - unless we also pass in a Main flag to indiciate which type of handling - to do, which would be kind of a hack. I've marked those places where I - changed or ripped out code which would have to be re-inserted to - generalize this function. If it can be done in a clean and graceful way, - it would be a great way to generalize the TIFF library. Otherwise, I'll - just leave this code here where it duplicates but remains on top of and - hopefully mostly independent of the main TIFF library. - - The caller will probably want to free the sub directory structure after - returning from this call, since otherwise once written out, the user - is likely to forget about it and leave data lying around. -*/ -toff_t -TIFFWritePrivateDataSubDirectory(TIFF* tif, - uint32 pdir_fieldsset[], int pdir_fields_last, - TIFFFieldInfo *field_info, - int (*getFieldFn)(TIFF *tif, ttag_t tag, ...)) -{ - uint16 dircount; - uint32 diroff, nextdiroff; - ttag_t tag; - uint32 nfields; - tsize_t dirsize; - char* data; - TIFFDirEntry* dir; - u_long b, *fields, fields_size; - toff_t directory_offset; - TIFFFieldInfo* fip; - - /* - * Deleted out all of the encoder flushing and such code from here - - * not necessary for subdirectories. - */ - - /* Finish writing out any image data. */ - TIFFFlushData(tif); - - /* - * Size the directory so that we can calculate - * offsets for the data items that aren't kept - * in-place in each field. - */ - nfields = 0; - for (b = 0; b <= pdir_fields_last; b++) - if (FieldSet(pdir_fieldsset, b)) - /* Deleted code to make size of first 4 tags 2 - instead of 1. */ - nfields += 1; - dirsize = nfields * sizeof (TIFFDirEntry); - data = (char*) _TIFFmalloc(dirsize); - if (data == NULL) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Cannot write private subdirectory, out of space"); - return (0); - } - /* - * Place directory in data section of the file. If there isn't one - * yet, place it at the end of the file. The directory is treated as - * data, so we don't link it into the directory structure at all. - */ - if (tif->tif_dataoff == 0) - tif->tif_dataoff =(TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; - diroff = tif->tif_dataoff; - tif->tif_dataoff = (toff_t)( - diroff + sizeof (uint16) + dirsize + sizeof (toff_t)); - if (tif->tif_dataoff & 1) - tif->tif_dataoff++; - (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); - /*tif->tif_curdir++;*/ - dir = (TIFFDirEntry*) data; - /* - * Setup external form of directory - * entries and write data items. - */ - /* - * We make a local copy of the fieldsset here so that we don't mess - * up the original one when we call ResetFieldBit(). But I'm not sure - * why the original code calls ResetFieldBit(), since we're already - * going through the fields in order... - * - * fields_size is the number of uint32's we will need to hold the - * bit-mask for all of the fields. If our highest field number is - * 100, then we'll need 100 / (8*4)+1 == 4 uint32's to hold the - * fieldset. - * - * Unlike the original code, we allocate fields dynamically based - * on the requested pdir_fields_last value, allowing private - * data subdirectories to contain more than the built-in code's limit - * of 95 tags in a directory. - */ - fields_size = pdir_fields_last / (8*sizeof(uint32)) + 1; - fields = _TIFFmalloc(fields_size*sizeof(uint32)); - _TIFFmemcpy(fields, pdir_fieldsset, fields_size * sizeof(uint32)); - - /* Deleted "write out extra samples tag" code here. */ - - /* Deleted code for checking a billion little special cases for the - * standard TIFF tags. Should add a general mechanism for overloading - * write function for each field, just like Brian kept telling me!!! - */ - for (fip = field_info; fip->field_tag; fip++) { - /* Deleted code to check for FIELD_IGNORE!! */ - if (/* fip->field_bit == FIELD_IGNORE || */ - !FieldSet(fields, fip->field_bit)) - continue; - if (!TIFFWriteNormalSubTag(tif, dir, fip, getFieldFn)) - goto bad; - dir++; - ResetFieldBit(fields, fip->field_bit); - } - - /* Now we've written all of the referenced data, and are about to - write the main directory structure, so grab the tif_dataoff value - now so we can remember where we wrote the directory. */ - directory_offset = tif->tif_dataoff; - - /* - * Write directory. - */ - dircount = (uint16) nfields; - /* Deleted code to link to the next directory - we set it to zero! */ - nextdiroff = 0; - if (tif->tif_flags & TIFF_SWAB) { - /* - * The file's byte order is opposite to the - * native machine architecture. We overwrite - * the directory information with impunity - * because it'll be released below after we - * write it to the file. Note that all the - * other tag construction routines assume that - * we do this byte-swapping; i.e. they only - * byte-swap indirect data. - */ - for (dir = (TIFFDirEntry*) data; dircount; dir++, dircount--) { - TIFFSwabArrayOfShort(&dir->tdir_tag, 2); - TIFFSwabArrayOfLong(&dir->tdir_count, 2); - } - dircount = (uint16) nfields; - TIFFSwabShort(&dircount); - TIFFSwabLong(&nextdiroff); - } - - (void) TIFFSeekFile(tif, tif->tif_dataoff, SEEK_SET); - if (!WriteOK(tif, &dircount, sizeof (dircount))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing private subdirectory count"); - goto bad; - } - if (!WriteOK(tif, data, dirsize)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing private subdirectory contents"); - goto bad; - } - if (!WriteOK(tif, &nextdiroff, sizeof (nextdiroff))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing private subdirectory link"); - goto bad; - } - tif->tif_dataoff += sizeof(dircount) + dirsize + sizeof(nextdiroff); - - _TIFFfree(data); - _TIFFfree(fields); - tif->tif_flags &= ~TIFF_DIRTYDIRECT; - -#if (0) - /* This stuff commented out because I don't think we want it for - subdirectories, but I could be wrong. */ - (*tif->tif_cleanup)(tif); - - /* - * Reset directory-related state for subsequent - * directories. - */ - TIFFDefaultDirectory(tif); - tif->tif_curoff = 0; - tif->tif_row = (uint32) -1; - tif->tif_curstrip = (tstrip_t) -1; -#endif - - return (directory_offset); -bad: - _TIFFfree(data); - _TIFFfree(fields); - return (0); -} -#undef WriteRationalPair - -/* - * Process tags that are not special cased. - */ -/* The standard function TIFFWriteNormalTag() could definitely be replaced - with a simple call to this function, just adding TIFFGetField() as the - last argument. */ -static int -TIFFWriteNormalSubTag(TIFF* tif, TIFFDirEntry* dir, const TIFFFieldInfo* fip, - int (*getFieldFn)(TIFF *tif, ttag_t tag, ...)) -{ - u_short wc = (u_short) fip->field_writecount; - - dir->tdir_tag = fip->field_tag; - dir->tdir_type = (u_short) fip->field_type; - dir->tdir_count = wc; -#define WRITEF(x,y) x(tif, fip->field_type, fip->field_tag, dir, wc, y) - switch (fip->field_type) { - case TIFF_SHORT: - case TIFF_SSHORT: - if (wc > 1) { - uint16* wp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &wp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &wp); - if (!WRITEF(TIFFWriteShortArray, wp)) - return (0); - } else { - uint16 sv; - (*getFieldFn)(tif, fip->field_tag, &sv); - dir->tdir_offset = - TIFFInsertData(tif, dir->tdir_type, sv); - } - break; - case TIFF_LONG: - case TIFF_SLONG: - if (wc > 1) { - uint32* lp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &lp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &lp); - if (!WRITEF(TIFFWriteLongArray, lp)) - return (0); - } else { - /* XXX handle LONG->SHORT conversion */ - (*getFieldFn)(tif, fip->field_tag, &dir->tdir_offset); - } - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - if (wc > 1) { - float* fp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &fp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &fp); - if (!WRITEF(TIFFWriteRationalArray, fp)) - return (0); - } else { - float fv; - (*getFieldFn)(tif, fip->field_tag, &fv); - if (!WRITEF(TIFFWriteRationalArray, &fv)) - return (0); - } - break; - case TIFF_FLOAT: - if (wc > 1) { - float* fp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &fp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &fp); - if (!WRITEF(TIFFWriteFloatArray, fp)) - return (0); - } else { - float fv; - (*getFieldFn)(tif, fip->field_tag, &fv); - if (!WRITEF(TIFFWriteFloatArray, &fv)) - return (0); - } - break; - case TIFF_DOUBLE: - /* Hey - I think this is a bug, or at least a "gross - inconsistency", in the TIFF library. Look at the original - TIFF library code below within the "#if (0) ... #else". - Just from the type of *dp, you can see that this code - expects TIFFGetField() to be handed a double ** for - any TIFF_DOUBLE tag, even for the constant wc==1 case. - This is totally inconsistent with other fields (like - TIFF_FLOAT, above) and is also inconsistent with the - TIFFSetField() function for TIFF_DOUBLEs, which expects - to be passed a single double by value for the wc==1 case. - (See the handling of TIFFFetchNormalTag() in tif_dirread.c - for an example.) Maybe this function was written before - TIFFWriteDoubleArray() was written, not that that's an - excuse. Anyway, the new code below is a trivial modification - of the TIFF_FLOAT code above. The fact that even single - doubles get written out in the data segment and get an - offset value stored is irrelevant here - that is all - handled by TIFFWriteDoubleArray(). */ -#if (0) - { double* dp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &dp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &dp); - TIFFCvtNativeToIEEEDouble(tif, wc, dp); - if (!TIFFWriteData(tif, dir, (char*) dp)) - return (0); - } -#else - if (wc > 1) { - double* dp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &dp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &dp); - if (!WRITEF(TIFFWriteDoubleArray, dp)) - return (0); - } else { - double dv; - (*getFieldFn)(tif, fip->field_tag, &dv); - if (!WRITEF(TIFFWriteDoubleArray, &dv)) - return (0); - } -#endif - break; - case TIFF_ASCII: - { char* cp; - (*getFieldFn)(tif, fip->field_tag, &cp); - dir->tdir_count = (uint32) (strlen(cp) + 1); - if (!TIFFWriteByteArray(tif, dir, cp)) - return (0); - } - break; - case TIFF_UNDEFINED: - { char* cp; - if (wc == (u_short) TIFF_VARIABLE) { - (*getFieldFn)(tif, fip->field_tag, &wc, &cp); - dir->tdir_count = wc; - } else - (*getFieldFn)(tif, fip->field_tag, &cp); - if (!TIFFWriteByteArray(tif, dir, cp)) - return (0); - } - break; - } - return (1); -} -#undef WRITEF - -/* Everything after this is exactly duplicated from the standard tif_dirwrite.c - file, necessitated by the fact that they are declared static there so - we can't call them! -*/ -/* - * Setup a directory entry with either a SHORT - * or LONG type according to the value. - */ -static void -TIFFSetupShortLong(TIFF* tif, ttag_t tag, TIFFDirEntry* dir, uint32 v) -{ - dir->tdir_tag = tag; - dir->tdir_count = 1; - if (v > 0xffffL) { - dir->tdir_type = (short) TIFF_LONG; - dir->tdir_offset = v; - } else { - dir->tdir_type = (short) TIFF_SHORT; - dir->tdir_offset = TIFFInsertData(tif, (int) TIFF_SHORT, v); - } -} -#undef MakeShortDirent - -#ifndef TIFFWriteRational -/* - * Setup a RATIONAL directory entry and - * write the associated indirect value. - */ -static int -TIFFWriteRational(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, float v) -{ - return (TIFFWriteRationalArray(tif, type, tag, dir, 1, &v)); -} -#endif - -#define NITEMS(x) (sizeof (x) / sizeof (x[0])) -/* - * Setup a directory entry that references a - * samples/pixel array of SHORT values and - * (potentially) write the associated indirect - * values. - */ -static int -TIFFWritePerSampleShorts(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) -{ - uint16 buf[10], v; - uint16* w = buf; - int i, status, samples = tif->tif_dir.td_samplesperpixel; - - if (samples > NITEMS(buf)) - w = (uint16*) _TIFFmalloc(samples * sizeof (uint16)); - TIFFGetField(tif, tag, &v); - for (i = 0; i < samples; i++) - w[i] = v; - status = TIFFWriteShortArray(tif, TIFF_SHORT, tag, dir, samples, w); - if (w != buf) - _TIFFfree((char*) w); - return (status); -} - -/* - * Setup a directory entry that references a samples/pixel array of ``type'' - * values and (potentially) write the associated indirect values. The source - * data from TIFFGetField() for the specified tag must be returned as double. - */ -static int -TIFFWritePerSampleAnys(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir) -{ - double buf[10], v; - double* w = buf; - int i, status; - int samples = (int) tif->tif_dir.td_samplesperpixel; - - if (samples > NITEMS(buf)) - w = (double*) _TIFFmalloc(samples * sizeof (double)); - TIFFGetField(tif, tag, &v); - for (i = 0; i < samples; i++) - w[i] = v; - status = TIFFWriteAnyArray(tif, type, tag, dir, samples, w); - if (w != buf) - _TIFFfree(w); - return (status); -} -#undef NITEMS - -/* - * Setup a pair of shorts that are returned by - * value, rather than as a reference to an array. - */ -static int -TIFFSetupShortPair(TIFF* tif, ttag_t tag, TIFFDirEntry* dir) -{ - uint16 v[2]; - - TIFFGetField(tif, tag, &v[0], &v[1]); - return (TIFFWriteShortArray(tif, TIFF_SHORT, tag, dir, 2, v)); -} - -/* - * Setup a directory entry for an NxM table of shorts, - * where M is known to be 2**bitspersample, and write - * the associated indirect data. - */ -static int -TIFFWriteShortTable(TIFF* tif, - ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16** table) -{ - uint32 i, off; - - dir->tdir_tag = tag; - dir->tdir_type = (short) TIFF_SHORT; - /* XXX -- yech, fool TIFFWriteData */ - dir->tdir_count = (uint32) (1L<tif_dir.td_bitspersample); - off = tif->tif_dataoff; - for (i = 0; i < n; i++) - if (!TIFFWriteData(tif, dir, (char *)table[i])) - return (0); - dir->tdir_count *= n; - dir->tdir_offset = off; - return (1); -} - -/* - * Write/copy data associated with an ASCII or opaque tag value. - */ -static int -TIFFWriteByteArray(TIFF* tif, TIFFDirEntry* dir, char* cp) -{ - if (dir->tdir_count > 4) { - if (!TIFFWriteData(tif, dir, cp)) - return (0); - } else - _TIFFmemcpy(&dir->tdir_offset, cp, dir->tdir_count); - return (1); -} - -/* - * Setup a directory entry of an array of SHORT - * or SSHORT and write the associated indirect values. - */ -static int -TIFFWriteShortArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, uint16* v) -{ - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - if (n <= 2) { - if (tif->tif_header.tiff_magic == TIFF_BIGENDIAN) { - dir->tdir_offset = (uint32) ((long) v[0] << 16); - if (n == 2) - dir->tdir_offset |= v[1] & 0xffff; - } else { - dir->tdir_offset = v[0] & 0xffff; - if (n == 2) - dir->tdir_offset |= (long) v[1] << 16; - } - return (1); - } else - return (TIFFWriteData(tif, dir, (char*) v)); -} - -/* - * Setup a directory entry of an array of LONG - * or SLONG and write the associated indirect values. - */ -static int -TIFFWriteLongArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, uint32* v) -{ - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - if (n == 1) { - dir->tdir_offset = v[0]; - return (1); - } else - return (TIFFWriteData(tif, dir, (char*) v)); -} - -/* - * Setup a directory entry of an array of RATIONAL - * or SRATIONAL and write the associated indirect values. - */ -static int -TIFFWriteRationalArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, float* v) -{ - uint32 i; - uint32* t; - int status; - - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - t = (uint32*) _TIFFmalloc(2*n * sizeof (uint32)); - for (i = 0; i < n; i++) { - float fv = v[i]; - int sign = 1; - uint32 den; - - if (fv < 0) { - if (type == TIFF_RATIONAL) { - TIFFWarning(tif->tif_name, - "\"%s\": Information lost writing value (%g) as (unsigned) RATIONAL", - _TIFFFieldWithTag(tif,tag)->field_name, v); - fv = 0; - } else - fv = -fv, sign = -1; - } - den = 1L; - if (fv > 0) { - while (fv < 1L<<(31-3) && den < 1L<<(31-3)) - fv *= 1<<3, den *= 1L<<3; - } - t[2*i+0] = sign * (fv + 0.5); - t[2*i+1] = den; - } - status = TIFFWriteData(tif, dir, (char *)t); - _TIFFfree((char*) t); - return (status); -} - -static int -TIFFWriteFloatArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, float* v) -{ - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - TIFFCvtNativeToIEEEFloat(tif, n, v); - if (n == 1) { - dir->tdir_offset = *(uint32*) &v[0]; - return (1); - } else - return (TIFFWriteData(tif, dir, (char*) v)); -} - -static int -TIFFWriteDoubleArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v) -{ - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - TIFFCvtNativeToIEEEDouble(tif, n, v); - return (TIFFWriteData(tif, dir, (char*) v)); -} - -/* - * Write an array of ``type'' values for a specified tag (i.e. this is a tag - * which is allowed to have different types, e.g. SMaxSampleType). - * Internally the data values are represented as double since a double can - * hold any of the TIFF tag types (yes, this should really be an abstract - * type tany_t for portability). The data is converted into the specified - * type in a temporary buffer and then handed off to the appropriate array - * writer. - */ -static int -TIFFWriteAnyArray(TIFF* tif, - TIFFDataType type, ttag_t tag, TIFFDirEntry* dir, uint32 n, double* v) -{ - char buf[10 * sizeof(double)]; - char* w = buf; - int i, status = 0; - - if (n * TIFFDataWidth(type) > sizeof buf) - w = (char*) _TIFFmalloc(n * TIFFDataWidth(type)); - switch (type) { - case TIFF_BYTE: - { unsigned char* bp = (unsigned char*) w; - for (i = 0; i < n; i++) - bp[i] = (unsigned char) v[i]; - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - if (!TIFFWriteByteArray(tif, dir, (char*) bp)) - goto out; - } - break; - case TIFF_SBYTE: - { signed char* bp = (signed char*) w; - for (i = 0; i < n; i++) - bp[i] = (signed char) v[i]; - dir->tdir_tag = tag; - dir->tdir_type = (short) type; - dir->tdir_count = n; - if (!TIFFWriteByteArray(tif, dir, (char*) bp)) - goto out; - } - break; - case TIFF_SHORT: - { uint16* bp = (uint16*) w; - for (i = 0; i < n; i++) - bp[i] = (uint16) v[i]; - if (!TIFFWriteShortArray(tif, type, tag, dir, n, (uint16*)bp)) - goto out; - } - break; - case TIFF_SSHORT: - { int16* bp = (int16*) w; - for (i = 0; i < n; i++) - bp[i] = (int16) v[i]; - if (!TIFFWriteShortArray(tif, type, tag, dir, n, (uint16*)bp)) - goto out; - } - break; - case TIFF_LONG: - { uint32* bp = (uint32*) w; - for (i = 0; i < n; i++) - bp[i] = (uint32) v[i]; - if (!TIFFWriteLongArray(tif, type, tag, dir, n, bp)) - goto out; - } - break; - case TIFF_SLONG: - { int32* bp = (int32*) w; - for (i = 0; i < n; i++) - bp[i] = (int32) v[i]; - if (!TIFFWriteLongArray(tif, type, tag, dir, n, (uint32*) bp)) - goto out; - } - break; - case TIFF_FLOAT: - { float* bp = (float*) w; - for (i = 0; i < n; i++) - bp[i] = (float) v[i]; - if (!TIFFWriteFloatArray(tif, type, tag, dir, n, bp)) - goto out; - } - break; - case TIFF_DOUBLE: - return (TIFFWriteDoubleArray(tif, type, tag, dir, n, v)); - default: - /* TIFF_NOTYPE */ - /* TIFF_ASCII */ - /* TIFF_UNDEFINED */ - /* TIFF_RATIONAL */ - /* TIFF_SRATIONAL */ - goto out; - } - status = 1; - out: - if (w != buf) - _TIFFfree(w); - return (status); -} - -#ifdef COLORIMETRY_SUPPORT -static int -TIFFWriteTransferFunction(TIFF* tif, TIFFDirEntry* dir) -{ - TIFFDirectory* td = &tif->tif_dir; - tsize_t n = (1L<td_bitspersample) * sizeof (uint16); - uint16** tf = td->td_transferfunction; - int ncols; - - /* - * Check if the table can be written as a single column, - * or if it must be written as 3 columns. Note that we - * write a 3-column tag if there are 2 samples/pixel and - * a single column of data won't suffice--hmm. - */ - switch (td->td_samplesperpixel - td->td_extrasamples) { - default: if (_TIFFmemcmp(tf[0], tf[2], n)) { ncols = 3; break; } - case 2: if (_TIFFmemcmp(tf[0], tf[1], n)) { ncols = 3; break; } - case 1: case 0: ncols = 1; - } - return (TIFFWriteShortTable(tif, - TIFFTAG_TRANSFERFUNCTION, dir, ncols, tf)); -} -#endif - -/* - * Write a contiguous directory item. - */ -static int -TIFFWriteData(TIFF* tif, TIFFDirEntry* dir, char* cp) -{ - tsize_t cc; - - if (tif->tif_flags & TIFF_SWAB) { - switch (dir->tdir_type) { - case TIFF_SHORT: - case TIFF_SSHORT: - TIFFSwabArrayOfShort((uint16*) cp, dir->tdir_count); - break; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - TIFFSwabArrayOfLong((uint32*) cp, dir->tdir_count); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - TIFFSwabArrayOfLong((uint32*) cp, 2*dir->tdir_count); - break; - case TIFF_DOUBLE: - TIFFSwabArrayOfDouble((double*) cp, dir->tdir_count); - break; - } - } - dir->tdir_offset = tif->tif_dataoff; - cc = dir->tdir_count * TIFFDataWidth(dir->tdir_type); - if (SeekOK(tif, dir->tdir_offset) && - WriteOK(tif, cp, cc)) { - tif->tif_dataoff += (cc + 1) & ~1; - return (1); - } - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing data for field \"%s\"", - _TIFFFieldWithTag(tif, dir->tdir_tag)->field_name); - return (0); -} - -/* - * Link the current directory into the - * directory chain for the file. - */ -static int -TIFFLinkDirectory(TIFF* tif) -{ - static const char module[] = "TIFFLinkDirectory"; - uint32 nextdir; - uint32 diroff; - - tif->tif_diroff = (TIFFSeekFile(tif, (toff_t) 0, SEEK_END)+1) &~ 1; - diroff = (uint32) tif->tif_diroff; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&diroff); -#if SUBIFD_SUPPORT - if (tif->tif_flags & TIFF_INSUBIFD) { - (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); - if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Error writing SubIFD directory link", - tif->tif_name); - return (0); - } - /* - * Advance to the next SubIFD or, if this is - * the last one configured, revert back to the - * normal directory linkage. - */ - if (--tif->tif_nsubifd) - tif->tif_subifdoff += sizeof (diroff); - else - tif->tif_flags &= ~TIFF_INSUBIFD; - return (1); - } -#endif - if (tif->tif_header.tiff_diroff == 0) { - /* - * First directory, overwrite offset in header. - */ - tif->tif_header.tiff_diroff = (uint32) tif->tif_diroff; -#define HDROFF(f) ((toff_t) &(((TIFFHeader*) 0)->f)) - (void) TIFFSeekFile(tif, HDROFF(tiff_diroff), SEEK_SET); - if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Error writing TIFF header"); - return (0); - } - return (1); - } - /* - * Not the first directory, search to the last and append. - */ - nextdir = tif->tif_header.tiff_diroff; - do { - uint16 dircount; - - if (!SeekOK(tif, nextdir) || - !ReadOK(tif, &dircount, sizeof (dircount))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - (void) TIFFSeekFile(tif, - dircount * sizeof (TIFFDirEntry), SEEK_CUR); - if (!ReadOK(tif, &nextdir, sizeof (nextdir))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory link"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextdir); - } while (nextdir != 0); - (void) TIFFSeekFile(tif, -(toff_t) sizeof (nextdir), SEEK_CUR); - if (!WriteOK(tif, &diroff, sizeof (diroff))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); - return (0); - } - return (1); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/ras/Makefile.am b/tiff/contrib/ras/Makefile.am deleted file mode 100755 index 9480944..0000000 --- a/tiff/contrib/ras/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = README ras2tif.c tif2ras.c - diff --git a/tiff/contrib/ras/Makefile.in b/tiff/contrib/ras/Makefile.in deleted file mode 100755 index 60ac36d..0000000 --- a/tiff/contrib/ras/Makefile.in +++ /dev/null @@ -1,494 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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-#endif -/*- - * ras2tif.c - Converts from a Sun Rasterfile to a Tagged Image File. - * - * Copyright (c) 1990 by Sun Microsystems, Inc. - * - * Author: Patrick J. Naughton - * naughton@wind.sun.com - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation. - * - * This file is provided AS IS with no warranties of any kind. The author - * shall have no liability with respect to the infringement of copyrights, - * trade secrets or any patents by this file or any part thereof. In no - * event will the author be liable for any lost revenue or profits or - * other special, indirect and consequential damages. - * - * Comments and additions should be sent to the author: - * - * Patrick J. Naughton - * Sun Microsystems - * 2550 Garcia Ave, MS 14-40 - * Mountain View, CA 94043 - * (415) 336-1080 - * - * Revision History: - * 11-Jan-89: Created. - * 06-Mar-90: fix bug in SCALE() macro. - * got rid of xres and yres, (they weren't working anyways). - * fixed bpsl calculation. - * 25-Nov-99: y2k fix (year as 1900 + tm_year) - * - * Description: - * This program takes a Sun Rasterfile [see rasterfile(5)] as input and - * writes a MicroSoft/Aldus "Tagged Image File Format" image or "TIFF" file. - * The input file may be standard input, but the output TIFF file must be a - * real file since seek(2) is used. - */ - -#include -#include -#include -#include "tiffio.h" - -typedef int boolean; -#define True (1) -#define False (0) -#define SCALE(x) (((x)*((1L<<16)-1))/255) - -boolean Verbose = False; -boolean dummyinput = False; -char *pname; /* program name (used for error messages) */ - -void -error(s1, s2) - char *s1, - *s2; -{ - fprintf(stderr, s1, pname, s2); - exit(1); -} - -void -usage() -{ - error("usage: %s -[vq] [-|rasterfile] TIFFfile\n", NULL); -} - - -main(argc, argv) - int argc; - char *argv[]; -{ - char *inf = NULL; - char *outf = NULL; - FILE *fp; - int depth, - i; - long row; - TIFF *tif; - Pixrect *pix; /* The Sun Pixrect */ - colormap_t Colormap; /* The Pixrect Colormap */ - u_short red[256], - green[256], - blue[256]; - struct tm *ct; - struct timeval tv; - long width, - height; - long rowsperstrip; - int year; - short photometric; - short samplesperpixel; - short bitspersample; - int bpsl; - static char *version = "ras2tif 1.0"; - static char *datetime = "1990:01:01 12:00:00"; - - gettimeofday(&tv, (struct timezone *) NULL); - ct = localtime(&tv.tv_sec); - year=1900 + ct->tm_year; - sprintf(datetime, "%04d:%02d:%02d %02d:%02d:%02d", - year, ct->tm_mon + 1, ct->tm_mday, - ct->tm_hour, ct->tm_min, ct->tm_sec); - - setbuf(stderr, NULL); - pname = argv[0]; - - while (--argc) { - if ((++argv)[0][0] == '-') { - switch (argv[0][1]) { - case 'v': - Verbose = True; - break; - case 'q': - usage(); - break; - case '\0': - if (inf == NULL) - dummyinput = True; - else - usage(); - break; - default: - fprintf(stderr, "%s: illegal option -%c.\n", pname, - argv[0][1]); - exit(1); - } - } else if (inf == NULL && !dummyinput) { - inf = argv[0]; - } else if (outf == NULL) - outf = argv[0]; - else - usage(); - } - - if (outf == NULL) - error("%s: can't write output file to a stream.\n", NULL); - - if (dummyinput || inf == NULL) { - inf = "Standard Input"; - fp = stdin; - } else if ((fp = fopen(inf, "r")) == NULL) - error("%s: %s couldn't be opened.\n", inf); - - if (Verbose) - fprintf(stderr, "Reading rasterfile from %s...", inf); - - pix = pr_load(fp, &Colormap); - if (pix == NULL) - error("%s: %s is not a raster file.\n", inf); - - if (Verbose) - fprintf(stderr, "done.\n"); - - if (Verbose) - fprintf(stderr, "Writing %s...", outf); - - tif = TIFFOpen(outf, "w"); - - if (tif == NULL) - error("%s: error opening TIFF file %s", outf); - - width = pix->pr_width; - height = pix->pr_height; - depth = pix->pr_depth; - - switch (depth) { - case 1: - samplesperpixel = 1; - bitspersample = 1; - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 8: - samplesperpixel = 1; - bitspersample = 8; - photometric = PHOTOMETRIC_PALETTE; - break; - case 24: - samplesperpixel = 3; - bitspersample = 8; - photometric = PHOTOMETRIC_RGB; - break; - case 32: - samplesperpixel = 4; - bitspersample = 8; - photometric = PHOTOMETRIC_RGB; - break; - default: - error("%s: bogus depth: %d\n", depth); - } - - bpsl = ((depth * width + 15) >> 3) & ~1; - rowsperstrip = (8 * 1024) / bpsl; - - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bitspersample); - TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_LZW); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric); - TIFFSetField(tif, TIFFTAG_DOCUMENTNAME, inf); - TIFFSetField(tif, TIFFTAG_IMAGEDESCRIPTION, "converted Sun rasterfile"); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, samplesperpixel); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - TIFFSetField(tif, TIFFTAG_STRIPBYTECOUNTS, height / rowsperstrip); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_SOFTWARE, version); - TIFFSetField(tif, TIFFTAG_DATETIME, datetime); - - memset(red, 0, sizeof(red)); - memset(green, 0, sizeof(green)); - memset(blue, 0, sizeof(blue)); - if (depth == 8) { - TIFFSetField(tif, TIFFTAG_COLORMAP, red, green, blue); - for (i = 0; i < Colormap.length; i++) { - red[i] = SCALE(Colormap.map[0][i]); - green[i] = SCALE(Colormap.map[1][i]); - blue[i] = SCALE(Colormap.map[2][i]); - } - } - if (Verbose) - fprintf(stderr, "%dx%dx%d image, ", width, height, depth); - - for (row = 0; row < height; row++) - if (TIFFWriteScanline(tif, - (u_char *) mprd_addr(mpr_d(pix), 0, row), - row, 0) < 0) { - fprintf("failed a scanline write (%d)\n", row); - break; - } - TIFFFlushData(tif); - TIFFClose(tif); - - if (Verbose) - fprintf(stderr, "done.\n"); - - pr_destroy(pix); - - exit(0); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/ras/tif2ras.c b/tiff/contrib/ras/tif2ras.c deleted file mode 100755 index e1c321d..0000000 --- a/tiff/contrib/ras/tif2ras.c +++ /dev/null @@ -1,344 +0,0 @@ -#ifndef lint -static char id[] = "$Id: tif2ras.c,v 1.3 2010-06-08 18:55:15 bfriesen Exp $"; -#endif -/*- - * tif2ras.c - Converts from a Tagged Image File Format image to a Sun Raster. - * - * Copyright (c) 1990 by Sun Microsystems, Inc. - * - * Author: Patrick J. Naughton - * naughton@wind.sun.com - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation. - * - * This file is provided AS IS with no warranties of any kind. The author - * shall have no liability with respect to the infringement of copyrights, - * trade secrets or any patents by this file or any part thereof. In no - * event will the author be liable for any lost revenue or profits or - * other special, indirect and consequential damages. - * - * Comments and additions should be sent to the author: - * - * Patrick J. Naughton - * Sun Microsystems - * 2550 Garcia Ave, MS 14-40 - * Mountain View, CA 94043 - * (415) 336-1080 - * - * Revision History: - * 10-Jan-89: Created. - * 06-Mar-90: Change to byte encoded rasterfiles. - * fix bug in call to ReadScanline(). - * fix bug in CVT() macro. - * fix assignment of td, (missing &). - * - * Description: - * This program takes a MicroSoft/Aldus "Tagged Image File Format" image or - * "TIFF" file as input and writes a Sun Rasterfile [see rasterfile(5)]. The - * output file may be standard output, but the input TIFF file must be a real - * file since seek(2) is used. - */ - -#include -#include -#include "tiffio.h" - -typedef int boolean; -#define True (1) -#define False (0) -#define CVT(x) (((x) * 255) / ((1L<<16)-1)) - -boolean Verbose = False; -char *pname; /* program name (used for error messages) */ - -void -error(s1, s2) - char *s1, - *s2; -{ - fprintf(stderr, s1, pname, s2); - exit(1); -} - -void -usage() -{ - error("usage: %s -[vq] TIFFfile [rasterfile]\n", NULL); -} - - -main(argc, argv) - int argc; - char *argv[]; -{ - char *inf = NULL; - char *outf = NULL; - FILE *fp; - long width, - height; - int depth, - numcolors; - register TIFF *tif; - TIFFDirectory *td; - register u_char *inp, - *outp; - register int col, - i; - register long row; - u_char *Map = NULL; - u_char *buf; - short bitspersample; - short samplesperpixel; - short photometric; - u_short *redcolormap, - *bluecolormap, - *greencolormap; - - Pixrect *pix; /* The Sun Pixrect */ - colormap_t Colormap; /* The Pixrect Colormap */ - u_char red[256], - green[256], - blue[256]; - - setbuf(stderr, NULL); - pname = argv[0]; - - while (--argc) { - if ((++argv)[0][0] == '-') - switch (argv[0][1]) { - case 'v': - Verbose = True; - break; - case 'q': - usage(); - break; - default: - fprintf(stderr, "%s: illegal option -%c.\n", pname, - argv[0][1]); - exit(1); - } - else if (inf == NULL) - inf = argv[0]; - else if (outf == NULL) - outf = argv[0]; - else - usage(); - - } - - if (inf == NULL) - error("%s: can't read input file from a stream.\n", NULL); - - if (Verbose) - fprintf(stderr, "Reading %s...", inf); - - tif = TIFFOpen(inf, "r"); - - if (tif == NULL) - error("%s: error opening TIFF file %s", inf); - - if (Verbose) - TIFFPrintDirectory(tif, stderr, True, False, False); - TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); - if (bitspersample > 8) - error("%s: can't handle more than 8-bits per sample\n", NULL); - - TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - switch (samplesperpixel) { - case 1: - if (bitspersample == 1) - depth = 1; - else - depth = 8; - break; - case 3: - case 4: - depth = 24; - break; - default: - error("%s: only handle 1-channel gray scale or 3-channel color\n"); - } - - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height); - - if (Verbose) - fprintf(stderr, "%dx%dx%d image, ", width, height, depth); - if (Verbose) - fprintf(stderr, "%d bits/sample, %d samples/pixel, ", - bitspersample, samplesperpixel); - - pix = mem_create(width, height, depth); - if (pix == (Pixrect *) NULL) - error("%s: can't allocate memory for output pixrect...\n", NULL); - - numcolors = (1 << bitspersample); - - TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric); - if (numcolors == 2) { - if (Verbose) - fprintf(stderr, "monochrome "); - Colormap.type = RMT_NONE; - Colormap.length = 0; - Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; - } else { - switch (photometric) { - case PHOTOMETRIC_MINISBLACK: - if (Verbose) - fprintf(stderr, "%d graylevels (min=black), ", numcolors); - Map = (u_char *) malloc(numcolors * sizeof(u_char)); - for (i = 0; i < numcolors; i++) - Map[i] = (255 * i) / numcolors; - Colormap.type = RMT_EQUAL_RGB; - Colormap.length = numcolors; - Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; - break; - case PHOTOMETRIC_MINISWHITE: - if (Verbose) - fprintf(stderr, "%d graylevels (min=white), ", numcolors); - Map = (u_char *) malloc(numcolors * sizeof(u_char)); - for (i = 0; i < numcolors; i++) - Map[i] = 255 - ((255 * i) / numcolors); - Colormap.type = RMT_EQUAL_RGB; - Colormap.length = numcolors; - Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = Map; - break; - case PHOTOMETRIC_RGB: - if (Verbose) - fprintf(stderr, "truecolor "); - Colormap.type = RMT_NONE; - Colormap.length = 0; - Colormap.map[0] = Colormap.map[1] = Colormap.map[2] = NULL; - break; - case PHOTOMETRIC_PALETTE: - if (Verbose) - fprintf(stderr, "colormapped "); - Colormap.type = RMT_EQUAL_RGB; - Colormap.length = numcolors; - memset(red, 0, sizeof(red)); - memset(green, 0, sizeof(green)); - memset(blue, 0, sizeof(blue)); - TIFFGetField(tif, TIFFTAG_COLORMAP, - &redcolormap, &greencolormap, &bluecolormap); - for (i = 0; i < numcolors; i++) { - red[i] = (u_char) CVT(redcolormap[i]); - green[i] = (u_char) CVT(greencolormap[i]); - blue[i] = (u_char) CVT(bluecolormap[i]); - } - Colormap.map[0] = red; - Colormap.map[1] = green; - Colormap.map[2] = blue; - break; - case PHOTOMETRIC_MASK: - error("%s: Don't know how to handle PHOTOMETRIC_MASK\n"); - break; - case PHOTOMETRIC_DEPTH: - error("%s: Don't know how to handle PHOTOMETRIC_DEPTH\n"); - break; - default: - error("%s: unknown photometric (cmap): %d\n", photometric); - } - } - - buf = (u_char *) malloc(TIFFScanlineSize(tif)); - if (buf == NULL) - error("%s: can't allocate memory for scanline buffer...\n", NULL); - - for (row = 0; row < height; row++) { - if (TIFFReadScanline(tif, buf, row, 0) < 0) - error("%s: bad data read on line: %d\n", row); - inp = buf; - outp = (u_char *) mprd_addr(mpr_d(pix), 0, row); - switch (photometric) { - case PHOTOMETRIC_RGB: - if (samplesperpixel == 4) - for (col = 0; col < width; col++) { - *outp++ = *inp++; /* Blue */ - *outp++ = *inp++; /* Green */ - *outp++ = *inp++; /* Red */ - inp++; /* skip alpha channel */ - } - else - for (col = 0; col < width; col++) { - *outp++ = *inp++; /* Blue */ - *outp++ = *inp++; /* Green */ - *outp++ = *inp++; /* Red */ - } - break; - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - switch (bitspersample) { - case 1: - for (col = 0; col < ((width + 7) / 8); col++) - *outp++ = *inp++; - break; - case 2: - for (col = 0; col < ((width + 3) / 4); col++) { - *outp++ = (*inp >> 6) & 3; - *outp++ = (*inp >> 4) & 3; - *outp++ = (*inp >> 2) & 3; - *outp++ = *inp++ & 3; - } - break; - case 4: - for (col = 0; col < width / 2; col++) { - *outp++ = *inp >> 4; - *outp++ = *inp++ & 0xf; - } - break; - case 8: - for (col = 0; col < width; col++) - *outp++ = *inp++; - break; - default: - error("%s: bad bits/sample: %d\n", bitspersample); - } - break; - case PHOTOMETRIC_PALETTE: - memcpy(outp, inp, width); - break; - default: - error("%s: unknown photometric (write): %d\n", photometric); - } - } - - free((char *) buf); - - if (Verbose) - fprintf(stderr, "done.\n"); - - if (outf == NULL || strcmp(outf, "Standard Output") == 0) { - outf = "Standard Output"; - fp = stdout; - } else { - if (!(fp = fopen(outf, "w"))) - error("%s: %s couldn't be opened for writing.\n", outf); - } - - if (Verbose) - fprintf(stderr, "Writing rasterfile in %s...", outf); - - if (pr_dump(pix, fp, &Colormap, RT_BYTE_ENCODED, 0) == PIX_ERR) - error("%s: error writing Sun Rasterfile: %s\n", outf); - - if (Verbose) - fprintf(stderr, "done.\n"); - - pr_destroy(pix); - - if (fp != stdout) - fclose(fp); - - exit(0); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/stream/Makefile.am b/tiff/contrib/stream/Makefile.am deleted file mode 100755 index 1e7a8da..0000000 --- a/tiff/contrib/stream/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = README tiffstream.cpp tiffstream.h - diff --git a/tiff/contrib/stream/Makefile.in b/tiff/contrib/stream/Makefile.in deleted file mode 100755 index b1bc177..0000000 --- a/tiff/contrib/stream/Makefile.in +++ /dev/null @@ -1,494 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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The implementation is an adaptor class, which takes any C++ -stream from the user and in return it deposits i/o operation method pointers -(e.g. read, write, seek and close) into the tiff's library client state. - -The class TiffStream has an overloaded factory method - makeFileStream - -which takes the C++ stream as an argument, calls TIFFClientOpen and returns -a tiff handle. The class retains the tiff handle in its local state and -provides a helper function (getTiffHandle) to query the handle at any time. -Additional helper method - getStreamSize - provides the stream size to the -user. The implementation assumes client responsibility to delete the stream -object. The class calls TIFFClose at destruction time. - -Attached are a definition (tiffstream.h) and an implementation -(tiffstream.cpp) files of the TiffStream class. No changes are required to -the tiff core piece and the class sits on top of the library. The code is -fairly tested at this point and is used internally in Shutterfly imaging -software. The code is portable across WindowsNT/Linux/Solaris. - -We at Shutterfly believe this software has benefits to the larger community -of tiff library users and would like to contribute this software to be part -of the tiff distributed package. Let me know of any issue. - -Thanks -Avi diff --git a/tiff/contrib/stream/tiffstream.cpp b/tiff/contrib/stream/tiffstream.cpp deleted file mode 100755 index ffff687..0000000 --- a/tiff/contrib/stream/tiffstream.cpp +++ /dev/null @@ -1,238 +0,0 @@ -// tiff stream interface class implementation - -#include "tiffstream.h" - -const char* TiffStream::m_name = "TiffStream"; - -TiffStream::TiffStream() -{ - m_tif = NULL; - - - m_inStream = NULL; - m_outStream = NULL; - m_ioStream = NULL; - - m_streamLength = 0; - - m_this = reinterpret_cast(this); -}; - -TiffStream::~TiffStream() -{ - if(m_tif != NULL) TIFFClose(m_tif); -} - -TIFF* -TiffStream::makeFileStream(istream* str) -{ - m_inStream = str; - m_outStream = NULL; - m_ioStream = NULL; - m_streamLength = getSize(m_this); - - m_tif = TIFFClientOpen(m_name, - "r", - m_this, - read, - write, - seek, - close, - size, - map, - unmap); - return m_tif; -} - -TIFF* -TiffStream::makeFileStream(ostream* str) -{ - m_inStream = NULL; - m_outStream = str; - m_ioStream = NULL; - m_streamLength = getSize(m_this); - - m_tif = TIFFClientOpen(m_name, - "w", - m_this, - read, - write, - seek, - close, - size, - map, - unmap); - return m_tif; -} - -TIFF* -TiffStream::makeFileStream(iostream* str) -{ - m_inStream = NULL; - m_outStream = NULL; - m_ioStream = str; - m_streamLength = getSize(m_this); - - m_tif = TIFFClientOpen(m_name, - "r+w", - m_this, - read, - write, - seek, - close, - size, - map, - unmap); - return m_tif; -} - -tsize_t -TiffStream::read(thandle_t fd, tdata_t buf, tsize_t size) -{ - istream* istr; - TiffStream* ts = reinterpret_cast(fd); - if(ts->m_inStream != NULL) { - istr = ts->m_inStream; - } else if(ts->m_ioStream != NULL) { - istr = ts->m_ioStream; - } - - int remain = ts->m_streamLength - ts->tell(fd); - int actual = remain < size ? remain : size; - istr->read(reinterpret_cast(buf), actual); - return istr->gcount(); -} - -tsize_t -TiffStream::write(thandle_t fd, tdata_t buf, tsize_t size) -{ - TiffStream* ts = reinterpret_cast(fd); - ostream* ostr; - if(ts->m_outStream != NULL) { - ostr = ts->m_outStream; - } else if(ts->m_ioStream != NULL) { - ostr = ts->m_ioStream; - } - - streampos start = ostr->tellp(); - ostr->write(reinterpret_cast(buf), size); - return ostr->tellp() - start; -} - -toff_t -TiffStream::seek(thandle_t fd, toff_t offset, int origin) -{ - TiffStream* ts = reinterpret_cast(fd); - if(ts->seekInt(fd, offset, origin) == true) return offset; - else return -1; -} - -int -TiffStream::close(thandle_t fd) -{ - TiffStream* ts = reinterpret_cast(fd); - if(ts->m_inStream != NULL) { - ts->m_inStream = NULL; - return 0; - } else if(ts->m_outStream != NULL) { - ts->m_outStream = NULL; - return 0; - } else if(ts->m_ioStream != NULL) { - ts->m_ioStream = NULL; - return 0; - } - return -1; -} - -toff_t -TiffStream::size(thandle_t fd) -{ - TiffStream* ts = reinterpret_cast(fd); - return ts->getSize(fd); -} - -int -TiffStream::map(thandle_t fd, tdata_t* phase, toff_t* psize) -{ - return 0; -} - -void -TiffStream::unmap(thandle_t fd, tdata_t base, tsize_t size) -{ -} - -unsigned int -TiffStream::getSize(thandle_t fd) -{ - if(!isOpen(fd)) return 0; - - unsigned int pos = tell(fd); - seekInt(fd, 0, end); - unsigned int size = tell(fd); - seekInt(fd, pos, beg); - - return size; -} - -unsigned int -TiffStream::tell(thandle_t fd) -{ - TiffStream* ts = reinterpret_cast(fd); - if(ts->m_inStream != NULL) { - return ts->m_inStream->tellg(); - } else if(ts->m_outStream != NULL) { - return ts->m_outStream->tellp(); - } else if(ts->m_ioStream != NULL) { - return ts->m_ioStream->tellg(); - } - return 0; -} - -bool -TiffStream::seekInt(thandle_t fd, unsigned int offset, int origin) -{ - if(!isOpen(fd)) return false; - - ios::seek_dir org; - switch(origin) { - case beg: - org = ios::beg; - break; - case cur: - org = ios::cur; - break; - case end: - org = ios::end; - break; - } - - TiffStream* ts = reinterpret_cast(fd); - if(ts->m_inStream != NULL) { - ts->m_inStream->seekg(offset, org); - return true; - } else if(ts->m_outStream != NULL) { - ts->m_outStream->seekp(offset, org); - return true; - } else if(ts->m_ioStream != NULL) { - ts->m_ioStream->seekg(offset, org); - ts->m_ioStream->seekp(offset, org); - return true; - } - return false; -} - -bool -TiffStream::isOpen(thandle_t fd) -{ - TiffStream* ts = reinterpret_cast(fd); - return (ts->m_inStream != NULL || - ts->m_outStream != NULL || - ts->m_ioStream != NULL); -}/* - * Local Variables: - * mode: c++ - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/stream/tiffstream.h b/tiff/contrib/stream/tiffstream.h deleted file mode 100755 index a583ae2..0000000 --- a/tiff/contrib/stream/tiffstream.h +++ /dev/null @@ -1,70 +0,0 @@ -// tiff stream interface class definition - -#ifndef _TIFF_STREAM_H_ -#define _TIFF_STREAM_H_ - -#include - -#include "tiffio.h" - -class TiffStream { - -public: - // ctor/dtor - TiffStream(); - ~TiffStream(); - -public: - enum SeekDir { - beg, - cur, - end, - }; - -public: - // factory methods - TIFF* makeFileStream(iostream* str); - TIFF* makeFileStream(istream* str); - TIFF* makeFileStream(ostream* str); - -public: - // tiff client methods - static tsize_t read(thandle_t fd, tdata_t buf, tsize_t size); - static tsize_t write(thandle_t fd, tdata_t buf, tsize_t size); - static toff_t seek(thandle_t fd, toff_t offset, int origin); - static toff_t size(thandle_t fd); - static int close(thandle_t fd); - static int map(thandle_t fd, tdata_t* phase, toff_t* psize); - static void unmap(thandle_t fd, tdata_t base, tsize_t size); - -public: - // query method - TIFF* getTiffHandle() const { return m_tif; } - unsigned int getStreamLength() { return m_streamLength; } - -private: - // internal methods - unsigned int getSize(thandle_t fd); - unsigned int tell(thandle_t fd); - bool seekInt(thandle_t fd, unsigned int offset, int origin); - bool isOpen(thandle_t fd); - -private: - thandle_t m_this; - TIFF* m_tif; - static const char* m_name; - istream* m_inStream; - ostream* m_outStream; - iostream* m_ioStream; - int m_streamLength; - -}; - -#endif // _TIFF_STREAM_H_ -/* - * Local Variables: - * mode: c++ - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/tags/Makefile.am b/tiff/contrib/tags/Makefile.am deleted file mode 100755 index 9d92444..0000000 --- a/tiff/contrib/tags/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = README listtif.c maketif.c xtif_dir.c xtiffio.h xtiffiop.h - diff --git a/tiff/contrib/tags/Makefile.in b/tiff/contrib/tags/Makefile.in deleted file mode 100755 index d63c967..0000000 --- a/tiff/contrib/tags/Makefile.in +++ /dev/null @@ -1,494 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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The described approach requires -internal knowledge of the libtiff API and tends to be very fragile -in the face of libtiff upgrades. - -Please read over the html/addingtags.html in preference to the below -described approach. - - - -================================== - -Client module for adding to LIBTIFF tagset -------------------------------------------- - Author: Niles Ritter - - - - -In the past, users of the "libtiff" package had to modify the -source code of the library if they required additional private tags -or codes not recognized by libtiff. Thus, whenever -a new revision of libtiff came out the client would have to -perform modifications to six or seven different files to re-install -their tags. - -The latest versions of libtiff now provide client software new routines, -giving them the opportunity to install private extensions at runtime, -rather than compile-time. This means that the client may encapsulate -all of their private tags into a separate module, which need only -be recompiled when new versions of libtiff are released; no manual -editing of files is required. - -How it works ------------- - -The mechanism for overriding the tag access has been enabled with -a single new routine, which has the following calling sequence: - - TIFFExtendProc old_extender; - - old_extender = TIFFSetTagExtender(tag_extender); - -which must be called prior to opening or creating TIFF files. - -This routine sets a static pointer to the user-specified function -, which in turn is called by TIFFDefaultDirectory(), -just after the usual TIFFSetField() and TIFFGetField() methods -are defined, and just before the compression tag is set. It also -returns a pointer to the previously-defined value of the tag-extender, -so that multiple clients may be installed. - -The TIFFExtendProc method that you define should be used to override -the TIFF file's "vsetfield" and "vgetfield" methods, so that you -can trap your new, private tags, and install their values into -a private directory structure. For your convienience, a new pointer -has also been added to the "TIFF" file structure: - - tidata_t tif_clientdir; /* client TIFF directory */ - -into which you may install whatever private directory structures you like. -You should also override the tag-printing method from within your -"vsetfield" method, to permit the symbolic printing of your new tags. - - -Example Client Code: --------------------- - -An example module has been provided as a template for installing -your own tags into a client tag extender. The module is called -"xtif_dir.c", and defines all of the interface routines, tag field -access, tag printing, etc. for most purpose. - -To see how the client module operates, there are three "fake" -tags currently installed. If you use the existing makefile you can -build them with: - - make all -f Makefile.gcc !or Makefile.mpw - maketif - listtif - -This will build two example programs called "maketif" and "listtif" -and then run them. These programs do nothing more than create a small -file called "newtif.tif", install the fake tags, and then list them out -using TIFFPrintDirectory(). - -Installing Private Tags ------------------------ - -To use this module for installing your own tags, edit each of the files - - xtif_dir.c - xtiffio.h - xtiffiop.h - -and search for the string "XXX". At these locations the comments -will direct you how to install your own tag values, define their -types, etc. Three examples tags are currently installed, demonstrating -how to implement multi-valued tags, single-valued tags, and ASCII tags. -The examples are not valid, registered tags, so you must replace them with -your own. - -To test the routines, also edit the test programs "maketif.c" and -"listtif.c" and replace the portions of the code that set the -private tag values and list them. - -Once you have edited these files, you may build the client module -with the Makefile provided, and run the test programs. - -To use these files in your own code, the "xtif_dir.c" module defines -replacement routines for the standard "TIFFOpen()" "TIFFFdOpen", -and "TIFFClose()" routines, called XTIFFOpen, XTIFFFdOpen and XTIFFClose. -You must use these routines in order to have the extended tag handlers -installed. Once installed, the standard TIFFGetField() and TIFFSetField -routines may be used as before. - -Adding Extended Tags to "tools" -------------------------------- -To create an extended-tag savvy "tiffinfo" program or other utility, you may -simply recompile and link the tools to your "libxtiff" library, adding - - -DTIFFOpen=XTIFFOpen -DTIFFClose=XTIFFClose -DTIFFFdOpen=XTIFFFdOpen - -to the compile statement. - -Bugs, Comments Etc: ------------------- - Send all reports and suggestions to ndr@tazboy.jpl.nasa.gov - (Niles Ritter). diff --git a/tiff/contrib/tags/listtif.c b/tiff/contrib/tags/listtif.c deleted file mode 100755 index 605de84..0000000 --- a/tiff/contrib/tags/listtif.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * listtif.c -- lists a tiff file. - */ - -#include "xtiffio.h" -#include - -void main(int argc,char *argv[]) -{ - char *fname="newtif.tif"; - int flags; - - TIFF *tif=(TIFF*)0; /* TIFF-level descriptor */ - - if (argc>1) fname=argv[1]; - - tif=XTIFFOpen(fname,"r"); - if (!tif) goto failure; - - /* We want the double array listed */ - flags = TIFFPRINT_MYMULTIDOUBLES; - - TIFFPrintDirectory(tif,stdout,flags); - XTIFFClose(tif); - exit (0); - -failure: - printf("failure in listtif\n"); - if (tif) XTIFFClose(tif); - exit (-1); -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/tags/maketif.c b/tiff/contrib/tags/maketif.c deleted file mode 100755 index e965201..0000000 --- a/tiff/contrib/tags/maketif.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * maketif.c -- creates a little TIFF file, with - * the XTIFF extended tiff example tags. - */ - -#include -#include "xtiffio.h" - - -void SetUpTIFFDirectory(TIFF *tif); -void WriteImage(TIFF *tif); - -#define WIDTH 20 -#define HEIGHT 20 - -void main() -{ - TIFF *tif=(TIFF*)0; /* TIFF-level descriptor */ - - tif=XTIFFOpen("newtif.tif","w"); - if (!tif) goto failure; - - SetUpTIFFDirectory(tif); - WriteImage(tif); - - XTIFFClose(tif); - exit (0); - -failure: - printf("failure in maketif\n"); - if (tif) XTIFFClose(tif); - exit (-1); -} - - -void SetUpTIFFDirectory(TIFF *tif) -{ - double mymulti[6]={0.0,1.0,2.0, 3.1415926, 5.0,1.0}; - uint32 mysingle=3456; - char *ascii="This file was produced by Steven Spielberg. NOT"; - - TIFFSetField(tif,TIFFTAG_IMAGEWIDTH,WIDTH); - TIFFSetField(tif,TIFFTAG_IMAGELENGTH,HEIGHT); - TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE); - TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_MINISBLACK); - TIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG); - TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8); - TIFFSetField(tif,TIFFTAG_ROWSPERSTRIP,20); - - /* Install the extended TIFF tag examples */ - TIFFSetField(tif,TIFFTAG_EXAMPLE_MULTI,6,mymulti); - TIFFSetField(tif,TIFFTAG_EXAMPLE_SINGLE,mysingle); - TIFFSetField(tif,TIFFTAG_EXAMPLE_ASCII,ascii); -} - - -void WriteImage(TIFF *tif) -{ - int i; - char buffer[WIDTH]; - - memset(buffer,0,sizeof(buffer)); - for (i=0;itif_clientdata, "WriteImage","failure in WriteScanline\n"); -} - - - - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/tags/xtif_dir.c b/tiff/contrib/tags/xtif_dir.c deleted file mode 100755 index e67a6ab..0000000 --- a/tiff/contrib/tags/xtif_dir.c +++ /dev/null @@ -1,350 +0,0 @@ -/* - * xtif_dir.c - * - * Extended TIFF Directory Tag Support. - * - * You may use this file as a template to add your own - * extended tags to the library. Only the parts of the code - * marked with "XXX" require modification. Three example tags - * are shown; you should replace them with your own. - * - * Author: Niles D. Ritter - */ - -#include "xtiffiop.h" -#include - -/* Tiff info structure. - * - * Entry format: - * { TAGNUMBER, ReadCount, WriteCount, DataType, FIELDNUM, - * OkToChange, PassDirCountOnSet, AsciiName } - * - * For ReadCount, WriteCount, -1 = unknown; used for mult-valued - * tags and ASCII. - */ - -static const TIFFFieldInfo xtiffFieldInfo[] = { - - /* XXX Replace these example tags with your own extended tags */ - { TIFFTAG_EXAMPLE_MULTI, -1,-1, TIFF_DOUBLE, FIELD_EXAMPLE_MULTI, - TRUE, TRUE, "MyMultivaluedTag" }, - { TIFFTAG_EXAMPLE_SINGLE, 1, 1, TIFF_LONG, FIELD_EXAMPLE_SINGLE, - TRUE, FALSE, "MySingleLongTag" }, - { TIFFTAG_EXAMPLE_ASCII, -1,-1, TIFF_ASCII, FIELD_EXAMPLE_ASCII, - TRUE, FALSE, "MyAsciiTag" }, -}; -#define N(a) (sizeof (a) / sizeof (a[0])) - - -static void -_XTIFFPrintDirectory(TIFF* tif, FILE* fd, long flags) -{ - xtiff *xt = XTIFFDIR(tif); - XTIFFDirectory *xd = &xt->xtif_dir; - int i,num; - - /* call the inherited method */ - if (PARENT(xt,printdir)) - (PARENT(xt,printdir))(tif,fd,flags); - - /* XXX Add field printing here. Replace the three example - * tags implemented below with your own. - */ - - fprintf(fd,"--My Example Tags--\n"); - - /* Our first example tag may have a lot of values, so we - * will only print them out if the TIFFPRINT_MYMULTIDOUBLES - * flag is passed into the print method. - */ - if (TIFFFieldSet(tif,FIELD_EXAMPLE_MULTI)) - { - fprintf(fd, " My Multi-Valued Doubles:"); - if (flags & TIFFPRINT_MYMULTIDOUBLES) - { - double *value = xd->xd_example_multi; - - num = xd->xd_num_multi; - fprintf(fd,"("); - for (i=0;ixd_example_single); - } - - if (TIFFFieldSet(tif,FIELD_EXAMPLE_ASCII)) - { - _TIFFprintAsciiTag(fd,"My ASCII Tag", - xd->xd_example_ascii); - } -} - -static int -_XTIFFVSetField(TIFF* tif, ttag_t tag, va_list ap) -{ - xtiff *xt = XTIFFDIR(tif); - XTIFFDirectory* xd = &xt->xtif_dir; - int status = 1; - uint32 v32=0; - int i=0, v=0; - va_list ap1 = ap; - - /* va_start is called by the calling routine */ - - switch (tag) { - /* - * XXX put your extended tags here; replace the implemented - * example tags with your own. - */ - case TIFFTAG_EXAMPLE_MULTI: - /* multi-valued tags need to store the count as well */ - xd->xd_num_multi = (uint16) va_arg(ap, int); - _TIFFsetDoubleArray(&xd->xd_example_multi, va_arg(ap, double*), - (long) xd->xd_num_multi); - break; - case TIFFTAG_EXAMPLE_SINGLE: - xd->xd_example_single = va_arg(ap, uint32); - break; - case TIFFTAG_EXAMPLE_ASCII: - _TIFFsetString(&xd->xd_example_ascii, va_arg(ap, char*)); - break; - default: - /* call the inherited method */ - return (PARENT(xt,vsetfield))(tif,tag,ap); - break; - } - if (status) { - /* we have to override the print method here, - * after the compression tags have gotten to it. - * This makes sense because the only time we would - * need the extended print method is if an extended - * tag is set by the reader. - */ - if (!(xt->xtif_flags & XTIFFP_PRINT)) - { - PARENT(xt,printdir) = TIFFMEMBER(tif,printdir); - TIFFMEMBER(tif,printdir) = _XTIFFPrintDirectory; - xt->xtif_flags |= XTIFFP_PRINT; - } - TIFFSetFieldBit(tif, _TIFFFieldWithTag(tif, tag)->field_bit); - tif->tif_flags |= TIFF_DIRTYDIRECT; - } - va_end(ap); - return (status); -badvalue: - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%d: Bad value for \"%s\"", v, - _TIFFFieldWithTag(tif, tag)->field_name); - va_end(ap); - return (0); -badvalue32: - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "%ld: Bad value for \"%s\"", v32, - _TIFFFieldWithTag(tif, tag)->field_name); - va_end(ap); - return (0); -} - - -static int -_XTIFFVGetField(TIFF* tif, ttag_t tag, va_list ap) -{ - xtiff *xt = XTIFFDIR(tif); - XTIFFDirectory* xd = &xt->xtif_dir; - - switch (tag) { - /* - * XXX put your extended tags here; replace the implemented - * example tags with your own. - */ - case TIFFTAG_EXAMPLE_MULTI: - *va_arg(ap, uint16*) = xd->xd_num_multi; - *va_arg(ap, double**) = xd->xd_example_multi; - break; - case TIFFTAG_EXAMPLE_ASCII: - *va_arg(ap, char**) = xd->xd_example_ascii; - break; - case TIFFTAG_EXAMPLE_SINGLE: - *va_arg(ap, uint32*) = xd->xd_example_single; - break; - default: - /* return inherited method */ - return (PARENT(xt,vgetfield))(tif,tag,ap); - break; - } - return (1); -} - -#define CleanupField(member) { \ - if (xd->member) { \ - _TIFFfree(xd->member); \ - xd->member = 0; \ - } \ -} -/* - * Release storage associated with a directory. - */ -static void -_XTIFFFreeDirectory(xtiff* xt) -{ - XTIFFDirectory* xd = &xt->xtif_dir; - - /* - * XXX - Purge all Your allocated memory except - * for the xtiff directory itself. This includes - * all fields that require a _TIFFsetXXX call in - * _XTIFFVSetField(). - */ - - CleanupField(xd_example_multi); - CleanupField(xd_example_ascii); - -} -#undef CleanupField - -static void _XTIFFLocalDefaultDirectory(TIFF *tif) -{ - xtiff *xt = XTIFFDIR(tif); - XTIFFDirectory* xd = &xt->xtif_dir; - - /* Install the extended Tag field info */ - _TIFFMergeFieldInfo(tif, xtiffFieldInfo, N(xtiffFieldInfo)); - - /* - * free up any dynamically allocated arrays - * before the new directory is read in. - */ - - _XTIFFFreeDirectory(xt); - _TIFFmemset(xt,0,sizeof(xtiff)); - - /* Override the tag access methods */ - - PARENT(xt,vsetfield) = TIFFMEMBER(tif,vsetfield); - TIFFMEMBER(tif,vsetfield) = _XTIFFVSetField; - PARENT(xt,vgetfield) = TIFFMEMBER(tif,vgetfield); - TIFFMEMBER(tif,vgetfield) = _XTIFFVGetField; - - /* - * XXX Set up any default values here. - */ - - xd->xd_example_single = 234; -} - - - -/********************************************************************** - * Nothing below this line should need to be changed. - **********************************************************************/ - -static TIFFExtendProc _ParentExtender; - -/* - * This is the callback procedure, and is - * called by the DefaultDirectory method - * every time a new TIFF directory is opened. - */ - -static void -_XTIFFDefaultDirectory(TIFF *tif) -{ - xtiff *xt; - - /* Allocate Directory Structure if first time, and install it */ - if (!(tif->tif_flags & XTIFF_INITIALIZED)) - { - xt = _TIFFmalloc(sizeof(xtiff)); - if (!xt) - { - /* handle memory allocation failure here ! */ - return; - } - _TIFFmemset(xt,0,sizeof(xtiff)); - /* - * Install into TIFF structure. - */ - TIFFMEMBER(tif,clientdir) = (tidata_t)xt; - tif->tif_flags |= XTIFF_INITIALIZED; /* dont do this again! */ - } - - /* set up our own defaults */ - _XTIFFLocalDefaultDirectory(tif); - - /* Since an XTIFF client module may have overridden - * the default directory method, we call it now to - * allow it to set up the rest of its own methods. - */ - - if (_ParentExtender) - (*_ParentExtender)(tif); - -} - -/* - * XTIFF Initializer -- sets up the callback - * procedure for the TIFF module. - */ - -static -void _XTIFFInitialize(void) -{ - static first_time=1; - - if (! first_time) return; /* Been there. Done that. */ - first_time = 0; - - /* Grab the inherited method and install */ - _ParentExtender = TIFFSetTagExtender(_XTIFFDefaultDirectory); -} - - -/* - * Public File I/O Routines. - */ -TIFF* -XTIFFOpen(const char* name, const char* mode) -{ - /* Set up the callback */ - _XTIFFInitialize(); - - /* Open the file; the callback will set everything up - */ - return TIFFOpen(name, mode); -} - -TIFF* -XTIFFFdOpen(int fd, const char* name, const char* mode) -{ - /* Set up the callback */ - _XTIFFInitialize(); - - /* Open the file; the callback will set everything up - */ - return TIFFFdOpen(fd, name, mode); -} - - -void -XTIFFClose(TIFF *tif) -{ - xtiff *xt = XTIFFDIR(tif); - - /* call inherited function first */ - TIFFClose(tif); - - /* Free up extended allocated memory */ - _XTIFFFreeDirectory(xt); - _TIFFfree(xt); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/tags/xtiffio.h b/tiff/contrib/tags/xtiffio.h deleted file mode 100755 index e8600df..0000000 --- a/tiff/contrib/tags/xtiffio.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * xtiffio.h -- Public interface to Extended TIFF tags - * - * This is a template for defining a client module - * which supports tag extensions to the standard libtiff - * set. Only portions of the code marked "XXX" need to - * be changed to support your tag set. - * - * written by: Niles D. Ritter - */ - -#ifndef __xtiffio_h -#define __xtiffio_h - -#include "tiffio.h" - -/* - * XXX Define your private Tag names and values here - */ - -/* These tags are not valid, but are provided for example */ -#define TIFFTAG_EXAMPLE_MULTI 61234 -#define TIFFTAG_EXAMPLE_SINGLE 61235 -#define TIFFTAG_EXAMPLE_ASCII 61236 - -/* - * XXX Define Printing method flags. These - * flags may be passed in to TIFFPrintDirectory() to - * indicate that those particular field values should - * be printed out in full, rather than just an indicator - * of whether they are present or not. - */ -#define TIFFPRINT_MYMULTIDOUBLES 0x80000000 - -/********************************************************************** - * Nothing below this line should need to be changed by the user. - **********************************************************************/ - -#if defined(__cplusplus) -extern "C" { -#endif - -extern TIFF* XTIFFOpen(const char* name, const char* mode); -extern TIFF* XTIFFFdOpen(int fd, const char* name, const char* mode); -extern void XTIFFClose(TIFF *tif); - -#if defined(__cplusplus) -} -#endif - -#endif /* __xtiffio_h */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/tags/xtiffiop.h b/tiff/contrib/tags/xtiffiop.h deleted file mode 100755 index 9d534a8..0000000 --- a/tiff/contrib/tags/xtiffiop.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Private Extended TIFF library interface. - * - * uses private LIBTIFF interface. - * - * The portions of this module marked "XXX" should be - * modified to support your tags instead. - * - * written by: Niles D. Ritter - * - */ - -#ifndef __xtiffiop_h -#define __xtiffiop_h - -#include "tiffiop.h" -#include "xtiffio.h" - -/********************************************************************** - * User Configuration - **********************************************************************/ - -/* XXX - Define number of your extended tags here */ -#define NUM_XFIELD 3 -#define XFIELD_BASE (FIELD_LAST-NUM_XFIELD) - -/* XXX - Define your Tag Fields here */ -#define FIELD_EXAMPLE_MULTI (XFIELD_BASE+0) -#define FIELD_EXAMPLE_SINGLE (XFIELD_BASE+1) -#define FIELD_EXAMPLE_ASCII (XFIELD_BASE+2) - - -/* XXX - Define Private directory tag structure here */ -struct XTIFFDirectory { - uint16 xd_num_multi; /* dir-count for the multi tag */ - double* xd_example_multi; - uint32 xd_example_single; - char* xd_example_ascii; -}; -typedef struct XTIFFDirectory XTIFFDirectory; - -/********************************************************************** - * Nothing below this line should need to be changed by the user. - **********************************************************************/ - -struct xtiff { - TIFF *xtif_tif; /* parent TIFF pointer */ - uint32 xtif_flags; -#define XTIFFP_PRINT 0x00000001 - XTIFFDirectory xtif_dir; /* internal rep of current directory */ - TIFFVSetMethod xtif_vsetfield; /* inherited tag set routine */ - TIFFVGetMethod xtif_vgetfield; /* inherited tag get routine */ - TIFFPrintMethod xtif_printdir; /* inherited dir print method */ -}; -typedef struct xtiff xtiff; - - -#define PARENT(xt,pmember) ((xt)->xtif_ ## pmember) -#define TIFFMEMBER(tf,pmember) ((tf)->tif_ ## pmember) -#define XTIFFDIR(tif) ((xtiff *)TIFFMEMBER(tif,clientdir)) - -/* Extended TIFF flags */ -#define XTIFF_INITIALIZED 0x80000000 - -#endif /* __xtiffiop_h */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/win_dib/Makefile.am b/tiff/contrib/win_dib/Makefile.am deleted file mode 100755 index 2bdccd0..0000000 --- a/tiff/contrib/win_dib/Makefile.am +++ /dev/null @@ -1,27 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - 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tif_close.c \ - tif_codec.c \ - tif_compress.c \ - tif_dir.c \ - tif_dirinfo.c \ - tif_dirread.c \ - tif_dirwrite.c \ - tif_dumpmode.c \ - tif_error.c \ - tif_getimage.c \ - tif_jpeg.c \ - tif_flush.c \ - tif_lzw.c \ - tif_next.c \ - tif_open.c \ - tif_packbits.c \ - tif_predict \ - tif_print.c \ - tif_read.c \ - tif_swab.c \ - tif_strip.c \ - tif_thunder.c \ - tif_tile.c \ - tif_version.c \ - tif_warning.c \ - tif_write.c \ - tif_win32.c - - -OBJS= tif_aux.obj \ - tif_close.obj \ - tif_codec.obj \ - tif_compress.obj \ - tif_dir.obj \ - tif_dirinfo.obj \ - tif_dirread.obj \ - tif_dirwrite.obj \ - tif_dumpmode.obj \ - tif_error.obj \ - tif_getimage.obj \ - tif_jpeg.obj \ - tif_flush.obj \ - tif_lzw.obj \ - tif_next.obj \ - tif_open.obj \ - tif_packbits.obj \ - tif_predict.obj \ - tif_print.obj \ - tif_read.obj \ - tif_swab.obj \ - tif_strip.obj \ - tif_thunder.obj \ - tif_tile.obj \ - tif_version.obj \ - tif_warning.obj \ - tif_write.obj \ - tif_win32.obj - - - -ALL= libtiff.lib - -all: $(ALL) - -%.obj : %.c - $(CC) $(CFLAGS) -c $*.c - - -#.INCLUDE .IGNORE : depend - -libtiff.lib: $(OBJS) - - del libtiff.lib - lib /OUT:libtiff.lib $(OBJS) - - -#To include fax3 support, you need to modify mkg3states.c so it could run -#under windows 95 or NT. This application make the file g3state.h. -#after that, you have to add to the build script : tif_fax3.c and tif_fax3.obj -#and define CCITT_SUPPORT in the file tifconf.h - -#$(OBJS): tiffio.h tiff.h tiffcomp.h tiffiop.h tiffconf.h -#tif_fax3.obj: tif_fax3.c g3states.h t4.h tif_fax3.h - -#g3states.h: mkg3states.c t4.h -# $(CC) $(CFLAGS) mkg3states.c -# mkg3states -c > g3states.h - - -clean: - del *.obj - del mkg3stat - del g3states.h - -tags: $(SRCS) - $(CTAGS) $(SRCS) diff --git a/tiff/contrib/win_dib/README.Tiffile b/tiff/contrib/win_dib/README.Tiffile deleted file mode 100755 index 82c6e5c..0000000 --- a/tiff/contrib/win_dib/README.Tiffile +++ /dev/null @@ -1,31 +0,0 @@ -Frank, - -I attached a file that uses RGBA interface (tif_getimage.c) to read a tiff -file and convert to a DIB. It's advantage is that it is easy to read *any* -tiff file suported by libtiff and easily convert it to a DIB. The disadvantage -is that bilevel (B&W) bitmaps (and all other non-rgba images) are also -converted to RGBA, thus taking up 32x as much memory as needed (4 bytes per -pixel, rather than 1 bit). I read tiff files, but don't need to -write them. And my files are typically small, so the overhead is mostly -inconsequential. But for bilevel images, I overrode the get() and put() -routines of the RGBA interface to just copy the data from the input raster -to the output raster, rather than expanding out to full 32 bit format. It -would be nice if there were a simple way to handle all palletized images, -but that would take more custom routines, and it's not that important to me. - -Usage: - - m_pDIB = (PBITMAPINFOHEADER)::ReadTIFF(pathName); - if (m_pDIB != 0) { - m_format = IMAGETYPE_TIF; - } - -This is intended as Win32, but the modifications for new get() and put() -routines may be independent of platform. - -Thanks for your work supporting the forum and the library! - -Regards, - -Mark James -mark@james.net diff --git a/tiff/contrib/win_dib/README.tiff2dib b/tiff/contrib/win_dib/README.tiff2dib deleted file mode 100755 index 3e6075f..0000000 --- a/tiff/contrib/win_dib/README.tiff2dib +++ /dev/null @@ -1,51 +0,0 @@ - -Date: 04 Dec 95 10:34:23 EST -From: Philippe <100423.3705@compuserve.com> -To: TIFF/sam Leffler -Subject: TIFF library and Windows 95 -Message-Id: <951204153422_100423.3705_BHG101-1@CompuServe.COM> - -Sam, - -First, let me thanks all of you how have worked -on that great TIFF library ! - -Here is some information that may help someone. - -I build the library under Windows 95 as a 32-bit library. -The contribution of Scott Wagner (tif_win32.c) worked fine, but -the makefile "makefile.msc" was unsable because it was -written for DOS or Windows 3.1 and all the files names -are limited to 8 characters. - -Here is the makefile I used : makefile.w95 - -Also, I had to disable fax3 support because I wasn't able -to build (as it is) the tool "mkg3states" to generate the include -file "g3states.h". -This source file must be modify to be build under Windows 95. - -To build the library under Windows 95 with Visual C++ 2.0, -I had to : - -- undefine CCITT_SUPPORT in "tiffconf.h" - -- create the file version.h with this line : - #define VERSION "3.4beta024" - -- build the makefile "makefile.w95" - -I also join the source file "tif2dib.c" that I created, -it contain the function LoadTIFFinDIB that load -a TIFF file and build a memory DIB with it and return the -HANDLE (HDIB) of the memory bloc containing this DIB. -Since DIB is the "natural" bitmap format for Windows 3.1, 95 and NT, -this function sould be usefull for some Windows 95 (or NT) developer. - - -Sorry for my approximate english ... - -Regards, - -Philippe Tenenhaus 100423.3705@compuserve.com -Paris diff --git a/tiff/contrib/win_dib/Tiffile.cpp b/tiff/contrib/win_dib/Tiffile.cpp deleted file mode 100755 index 9d958b1..0000000 --- a/tiff/contrib/win_dib/Tiffile.cpp +++ /dev/null @@ -1,449 +0,0 @@ -#include "StdAfx.h" - -//#define STRICT -#include -#include -#include -#include // MAX_ constants -#include "diblib.h" - -/*-------------------------------------------------------------------- - READ TIFF - Load the TIFF data from the file into memory. Return - a pointer to a valid DIB (or NULL for errors). - Uses the TIFFRGBA interface to libtiff.lib to convert - most file formats to a useable form. We just keep the 32 bit - form of the data to display, rather than optimizing for the - display. - - Main entry points: - - int ChkTIFF ( LPCTSTR lpszPath ) - PVOID ReadTIFF ( LPCTSTR lpszPath ) - - RETURN - A valid DIB pointer for success; NULL for failure. - - --------------------------------------------------------------------*/ - -#include "TiffLib/tiff.h" -#include "TiffLib/tiffio.h" -#include -#include - - -// piggyback some data on top of the RGBA Image -struct TIFFDibImage { - TIFFRGBAImage tif; - int dibinstalled; -} ; - - -HANDLE LoadTIFFinDIB(LPCTSTR lpFileName); -HANDLE TIFFRGBA2DIB(TIFFDibImage* dib, uint32* raster) ; - -static void -MyWarningHandler(const char* module, const char* fmt, va_list ap) -{ - // ignore all warnings (unused tags, etc) - return; -} - -static void -MyErrorHandler(const char* module, const char* fmt, va_list ap) -{ - return; -} - -// Turn off the error and warning handlers to check if a valid file. -// Necessary because of the way that the Doc loads images and restart files. -int ChkTIFF ( LPCTSTR lpszPath ) -{ - int rtn = 0; - - TIFFErrorHandler eh; - TIFFErrorHandler wh; - - eh = TIFFSetErrorHandler(NULL); - wh = TIFFSetWarningHandler(NULL); - - TIFF* tif = TIFFOpen(lpszPath, "r"); - if (tif) { - rtn = 1; - TIFFClose(tif); - } - - TIFFSetErrorHandler(eh); - TIFFSetWarningHandler(wh); - - return rtn; -} - -void DibInstallHack(TIFFDibImage* img) ; - -PVOID ReadTIFF ( LPCTSTR lpszPath ) -{ - void* pDIB = 0; - TIFFErrorHandler wh; - - wh = TIFFSetWarningHandler(MyWarningHandler); - - if (ChkTIFF(lpszPath)) { - TIFF* tif = TIFFOpen(lpszPath, "r"); - if (tif) { - char emsg[1024]; - - if (TIFFRGBAImageOK(tif, emsg)) { - TIFFDibImage img; - char emsg[1024]; - - if (TIFFRGBAImageBegin(&img.tif, tif, -1, emsg)) { - size_t npixels; - uint32* raster; - - DibInstallHack(&img); - - npixels = img.tif.width * img.tif.height; - raster = (uint32*) _TIFFmalloc(npixels * sizeof (uint32)); - if (raster != NULL) { - if (TIFFRGBAImageGet(&img.tif, raster, img.tif.width, img.tif.height)) { - pDIB = TIFFRGBA2DIB(&img, raster); - } - } - _TIFFfree(raster); - } - TIFFRGBAImageEnd(&img.tif); - } - else { - TRACE("Unable to open image(%s): %s\n", lpszPath, emsg ); - } - TIFFClose(tif); - } - } - - TIFFSetWarningHandler(wh); - - return pDIB; -} - - - -HANDLE TIFFRGBA2DIB(TIFFDibImage* dib, uint32* raster) -{ - void* pDIB = 0; - TIFFRGBAImage* img = &dib->tif; - - uint32 imageLength; - uint32 imageWidth; - uint16 BitsPerSample; - uint16 SamplePerPixel; - uint32 RowsPerStrip; - uint16 PhotometricInterpretation; - - BITMAPINFOHEADER bi; - int dwDIBSize ; - - TIFFGetField(img->tif, TIFFTAG_IMAGEWIDTH, &imageWidth); - TIFFGetField(img->tif, TIFFTAG_IMAGELENGTH, &imageLength); - TIFFGetField(img->tif, TIFFTAG_BITSPERSAMPLE, &BitsPerSample); - TIFFGetField(img->tif, TIFFTAG_ROWSPERSTRIP, &RowsPerStrip); - TIFFGetField(img->tif, TIFFTAG_SAMPLESPERPIXEL, &SamplePerPixel); - TIFFGetField(img->tif, TIFFTAG_PHOTOMETRIC, &PhotometricInterpretation); - - if ( BitsPerSample == 1 && SamplePerPixel == 1 && dib->dibinstalled ) { // bilevel - bi.biSize = sizeof(BITMAPINFOHEADER); - bi.biWidth = imageWidth; - bi.biHeight = imageLength; - bi.biPlanes = 1; // always - bi.biBitCount = 1; - bi.biCompression = BI_RGB; - bi.biSizeImage = WIDTHBYTES(bi.biWidth * bi.biBitCount) * bi.biHeight; - bi.biXPelsPerMeter = 0; - bi.biYPelsPerMeter = 0; - bi.biClrUsed = 0; // must be zero for RGB compression (none) - bi.biClrImportant = 0; // always - - // Get the size of the DIB - dwDIBSize = GetDIBSize( &bi ); - - // Allocate for the BITMAPINFO structure and the color table. - pDIB = GlobalAllocPtr( GHND, dwDIBSize ); - if (pDIB == 0) { - return( NULL ); - } - - // Copy the header info - *((BITMAPINFOHEADER*)pDIB) = bi; - - // Get a pointer to the color table - RGBQUAD *pRgbq = (RGBQUAD *)((LPSTR)pDIB + sizeof(BITMAPINFOHEADER)); - - pRgbq[0].rgbRed = 0; - pRgbq[0].rgbBlue = 0; - pRgbq[0].rgbGreen = 0; - pRgbq[0].rgbReserved = 0; - pRgbq[1].rgbRed = 255; - pRgbq[1].rgbBlue = 255; - pRgbq[1].rgbGreen = 255; - pRgbq[1].rgbReserved = 255; - - // Pointers to the bits - //PVOID pbiBits = (LPSTR)pRgbq + bi.biClrUsed * sizeof(RGBQUAD); - // - // In the BITMAPINFOHEADER documentation, it appears that - // there should be no color table for 32 bit images, but - // experience shows that the image is off by 3 words if it - // is not included. So here it is. - PVOID pbiBits = GetDIBImagePtr((BITMAPINFOHEADER*)pDIB); //(LPSTR)pRgbq + 3 * sizeof(RGBQUAD); - - int sizeWords = bi.biSizeImage/4; - RGBQUAD* rgbDib = (RGBQUAD*)pbiBits; - long* rgbTif = (long*)raster; - - _TIFFmemcpy(pbiBits, raster, bi.biSizeImage); - } - - // For now just always default to the RGB 32 bit form. // save as 32 bit for simplicity - else if ( true /*BitsPerSample == 8 && SamplePerPixel == 3*/ ) { // 24 bit color - - bi.biSize = sizeof(BITMAPINFOHEADER); - bi.biWidth = imageWidth; - bi.biHeight = imageLength; - bi.biPlanes = 1; // always - bi.biBitCount = 32; - bi.biCompression = BI_RGB; - bi.biSizeImage = WIDTHBYTES(bi.biWidth * bi.biBitCount) * bi.biHeight; - bi.biXPelsPerMeter = 0; - bi.biYPelsPerMeter = 0; - bi.biClrUsed = 0; // must be zero for RGB compression (none) - bi.biClrImportant = 0; // always - - // Get the size of the DIB - dwDIBSize = GetDIBSize( &bi ); - - // Allocate for the BITMAPINFO structure and the color table. - pDIB = GlobalAllocPtr( GHND, dwDIBSize ); - if (pDIB == 0) { - return( NULL ); - } - - // Copy the header info - *((BITMAPINFOHEADER*)pDIB) = bi; - - // Get a pointer to the color table - RGBQUAD *pRgbq = (RGBQUAD *)((LPSTR)pDIB + sizeof(BITMAPINFOHEADER)); - - // Pointers to the bits - //PVOID pbiBits = (LPSTR)pRgbq + bi.biClrUsed * sizeof(RGBQUAD); - // - // In the BITMAPINFOHEADER documentation, it appears that - // there should be no color table for 32 bit images, but - // experience shows that the image is off by 3 words if it - // is not included. So here it is. - PVOID pbiBits = (LPSTR)pRgbq + 3 * sizeof(RGBQUAD); - - int sizeWords = bi.biSizeImage/4; - RGBQUAD* rgbDib = (RGBQUAD*)pbiBits; - long* rgbTif = (long*)raster; - - // Swap the byte order while copying - for ( int i = 0 ; i < sizeWords ; ++i ) - { - rgbDib[i].rgbRed = TIFFGetR(rgbTif[i]); - rgbDib[i].rgbBlue = TIFFGetB(rgbTif[i]); - rgbDib[i].rgbGreen = TIFFGetG(rgbTif[i]); - rgbDib[i].rgbReserved = 0; - } - } - - return pDIB; -} - - - - -/////////////////////////////////////////////////////////////// -// -// Hacked from tif_getimage.c in libtiff in v3.5.7 -// -// -typedef unsigned char u_char; - - -#define DECLAREContigPutFunc(name) \ -static void name(\ - TIFFRGBAImage* img, \ - uint32* cp, \ - uint32 x, uint32 y, \ - uint32 w, uint32 h, \ - int32 fromskew, int32 toskew, \ - u_char* pp \ -) - -#define DECLARESepPutFunc(name) \ -static void name(\ - TIFFRGBAImage* img,\ - uint32* cp,\ - uint32 x, uint32 y, \ - uint32 w, uint32 h,\ - int32 fromskew, int32 toskew,\ - u_char* r, u_char* g, u_char* b, u_char* a\ -) - -DECLAREContigPutFunc(putContig1bitTile); -static int getStripContig1Bit(TIFFRGBAImage* img, uint32* uraster, uint32 w, uint32 h); - -//typdef struct TIFFDibImage { -// TIFFRGBAImage tif; -// dibinstalled; -//} TIFFDibImage ; - -void DibInstallHack(TIFFDibImage* dib) { - TIFFRGBAImage* img = &dib->tif; - dib->dibinstalled = false; - switch (img->photometric) { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - switch (img->bitspersample) { - case 1: - img->put.contig = putContig1bitTile; - img->get = getStripContig1Bit; - dib->dibinstalled = true; - break; - } - break; - } -} - -/* - * 1-bit packed samples => 1-bit - * - * Override to just copy the data - */ -DECLAREContigPutFunc(putContig1bitTile) -{ - int samplesperpixel = img->samplesperpixel; - - (void) y; - fromskew *= samplesperpixel; - int wb = WIDTHBYTES(w); - u_char* ucp = (u_char*)cp; - - /* Conver 'w' to bytes from pixels (rounded up) */ - w = (w+7)/8; - - while (h-- > 0) { - _TIFFmemcpy(ucp, pp, w); - /* - for (x = wb; x-- > 0;) { - *cp++ = rgbi(Map[pp[0]], Map[pp[1]], Map[pp[2]]); - pp += samplesperpixel; - } - */ - ucp += (wb + toskew); - pp += (w + fromskew); - } -} - -/* - * Hacked from the tif_getimage.c file. - */ -static uint32 -setorientation(TIFFRGBAImage* img, uint32 h) -{ - TIFF* tif = img->tif; - uint32 y; - - switch (img->orientation) { - case ORIENTATION_BOTRIGHT: - case ORIENTATION_RIGHTBOT: /* XXX */ - case ORIENTATION_LEFTBOT: /* XXX */ - TIFFWarning(TIFFFileName(tif), "using bottom-left orientation"); - img->orientation = ORIENTATION_BOTLEFT; - /* fall thru... */ - case ORIENTATION_BOTLEFT: - y = 0; - break; - case ORIENTATION_TOPRIGHT: - case ORIENTATION_RIGHTTOP: /* XXX */ - case ORIENTATION_LEFTTOP: /* XXX */ - default: - TIFFWarning(TIFFFileName(tif), "using top-left orientation"); - img->orientation = ORIENTATION_TOPLEFT; - /* fall thru... */ - case ORIENTATION_TOPLEFT: - y = h-1; - break; - } - return (y); -} - -/* - * Get a strip-organized image that has - * PlanarConfiguration contiguous if SamplesPerPixel > 1 - * or - * SamplesPerPixel == 1 - * - * Hacked from the tif_getimage.c file. - * - * This is set up to allow us to just copy the data to the raster - * for 1-bit bitmaps - */ -static int -getStripContig1Bit(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - tileContigRoutine put = img->put.contig; - uint16 orientation; - uint32 row, y, nrow, rowstoread; - uint32 pos; - u_char* buf; - uint32 rowsperstrip; - uint32 imagewidth = img->width; - tsize_t scanline; - int32 fromskew, toskew; - tstrip_t strip; - tsize_t stripsize; - u_char* braster = (u_char*)raster; // byte wide raster - uint32 wb = WIDTHBYTES(w); - int ret = 1; - - buf = (u_char*) _TIFFmalloc(TIFFStripSize(tif)); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer"); - return (0); - } - y = setorientation(img, h); - orientation = img->orientation; - toskew = -(int32) (orientation == ORIENTATION_TOPLEFT ? wb+wb : wb-wb); - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0)/8; - for (row = 0; row < h; row += nrow) - { - rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; - nrow = (row + rowstoread > h ? h - row : rowstoread); - strip = TIFFComputeStrip(tif,row+img->row_offset, 0); - stripsize = ((row + img->row_offset)%rowsperstrip + nrow) * scanline; - if (TIFFReadEncodedStrip(tif, strip, buf, stripsize ) < 0 - && img->stoponerr) - { - ret = 0; - break; - } - - pos = ((row + img->row_offset) % rowsperstrip) * scanline; - (*put)(img, (uint32*)(braster+y*wb), 0, y, w, nrow, fromskew, toskew, buf + pos); - y += (orientation == ORIENTATION_TOPLEFT ?-(int32) nrow : (int32) nrow); - } - _TIFFfree(buf); - return (ret); -} - -/* - * Local Variables: - * mode: c++ - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/contrib/win_dib/tiff2dib.c b/tiff/contrib/win_dib/tiff2dib.c deleted file mode 100755 index 475ef30..0000000 --- a/tiff/contrib/win_dib/tiff2dib.c +++ /dev/null @@ -1,379 +0,0 @@ -/************************************************************************* - * - * Source file for Windows 95/Win32. - * - * The function LoadTIFFinDIB in this source file let you load - * a TIFF file and build a memory DIB with it and return the - * HANDLE (HDIB) of the memory bloc containing the DIB. - * - * Example : - * - * HDIB hDIB; - * hDIB = LoadTIFFinDIB("sample.tif"); - * - * - * To build this source file you must include the TIFF library - * in your project. - * - * 4/12/95 Philippe Tenenhaus 100423.3705@compuserve.com - * - ************************************************************************/ - - -#include "tiffio.h" - -#define HDIB HANDLE -#define IS_WIN30_DIB(lpbi) ((*(LPDWORD)(lpbi)) == sizeof(BITMAPINFOHEADER)) -#define CVT(x) (((x) * 255L) / ((1L<<16)-1)) - -static HDIB CreateDIB(DWORD dwWidth, DWORD dwHeight, WORD wBitCount); -static LPSTR FindDIBBits(LPSTR lpDIB); -static WORD PaletteSize(LPSTR lpDIB); -static WORD DIBNumColors(LPSTR lpDIB); -static int checkcmap(int n, uint16* r, uint16* g, uint16* b); - - - -/************************************************************************* - * - * HDIB LoadTIFFinDIB(LPSTR lpFileName) - * - * Parameter: - * - * LPSTR lpDIB - File name of a tiff imag - * - * Return Value: - * - * LPSTR - HANDLE of a DIB - * - * Description: - * - * This function load a TIFF file and build a memory DIB with it - * and return the HANDLE (HDIB) of the memory bloc containing - * the DIB. - * - * 4/12/95 Philippe Tenenhaus 100423.3705@compuserve.com - * - ************************************************************************/ - -HDIB LoadTIFFinDIB(LPSTR lpFileName) -{ - TIFF *tif; - unsigned long imageLength; - unsigned long imageWidth; - unsigned int BitsPerSample; - unsigned long LineSize; - unsigned int SamplePerPixel; - unsigned long RowsPerStrip; - int PhotometricInterpretation; - long nrow; - unsigned long row; - char *buf; - LPBITMAPINFOHEADER lpDIB; - HDIB hDIB; - char *lpBits; - HGLOBAL hStrip; - int i,l; - int Align; - - tif = TIFFOpen(lpFileName, "r"); - - if (!tif) - goto TiffOpenError; - - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &imageWidth); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &imageLength); - TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &BitsPerSample); - TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &RowsPerStrip); - TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &RowsPerStrip); - TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &PhotometricInterpretation); - - LineSize = TIFFScanlineSize(tif); //Number of byte in ine line - - SamplePerPixel = (int) (LineSize/imageWidth); - - //Align = Number of byte to add at the end of each line of the DIB - Align = 4 - (LineSize % 4); - if (Align == 4) Align = 0; - - - //Create a new DIB - hDIB = CreateDIB((DWORD) imageWidth, (DWORD) imageLength, (WORD) -(BitsPerSample*SamplePerPixel)); - lpDIB = (LPBITMAPINFOHEADER) GlobalLock(hDIB); - if (!lpDIB) - goto OutOfDIBMemory; - - if (lpDIB) - lpBits = FindDIBBits((LPSTR) lpDIB); - - //In the tiff file the lines are save from up to down - //In a DIB the lines must be save from down to up - if (lpBits) - { - lpBits = FindDIBBits((LPSTR) lpDIB); - lpBits+=((imageWidth*SamplePerPixel)+Align)*(imageLength-1); - //now lpBits pointe on the bottom line - - hStrip = GlobalAlloc(GHND,TIFFStripSize(tif)); - buf = GlobalLock(hStrip); - - if (!buf) - goto OutOfBufMemory; - - //PhotometricInterpretation = 2 image is RGB - //PhotometricInterpretation = 3 image have a color palette - if (PhotometricInterpretation == 3) - { - uint16* red; - uint16* green; - uint16* blue; - int16 i; - LPBITMAPINFO lpbmi; - int Palette16Bits; - - TIFFGetField(tif, TIFFTAG_COLORMAP, &red, &green, &blue); - - //Is the palette 16 or 8 bits ? - if (checkcmap(1<= 0; i--) - { - if (Palette16Bits) - { - lpbmi->bmiColors[i].rgbRed =(BYTE) CVT(red[i]); - lpbmi->bmiColors[i].rgbGreen = (BYTE) CVT(green[i]); - lpbmi->bmiColors[i].rgbBlue = (BYTE) CVT(blue[i]); - } - else - { - lpbmi->bmiColors[i].rgbRed = (BYTE) red[i]; - lpbmi->bmiColors[i].rgbGreen = (BYTE) green[i]; - lpbmi->bmiColors[i].rgbBlue = (BYTE) blue[i]; - } - } - - } - - //read the tiff lines and save them in the DIB - //with RGB mode, we have to change the order of the 3 samples RGB -<=> BGR - for (row = 0; row < imageLength; row += RowsPerStrip) - { - nrow = (row + RowsPerStrip > imageLength ? imageLength - row : -RowsPerStrip); - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, row, 0), - buf, nrow*LineSize)==-1) - { - goto TiffReadError; - } - else - { - for (l = 0; l < nrow; l++) - { - if (SamplePerPixel == 3) - for (i=0;i< (int) (imageWidth);i++) - { - lpBits[i*SamplePerPixel+0]=buf[l*LineSize+i*Sample -PerPixel+2]; - lpBits[i*SamplePerPixel+1]=buf[l*LineSize+i*Sample -PerPixel+1]; - lpBits[i*SamplePerPixel+2]=buf[l*LineSize+i*Sample -PerPixel+0]; - } - else - memcpy(lpBits, &buf[(int) (l*LineSize)], (int) -imageWidth*SamplePerPixel); - - lpBits-=imageWidth*SamplePerPixel+Align; - - } - } - } - GlobalUnlock(hStrip); - GlobalFree(hStrip); - GlobalUnlock(hDIB); - TIFFClose(tif); - } - - return hDIB; - - OutOfBufMemory: - - TiffReadError: - GlobalUnlock(hDIB); - GlobalFree(hStrip); - OutOfDIBMemory: - TIFFClose(tif); - TiffOpenError: - return (HANDLE) 0; - - -} - - -static int checkcmap(int n, uint16* r, uint16* g, uint16* b) -{ - while (n-- > 0) - if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) - return (16); - - return (8); -} - - - -/************************************************************************* - * All the following functions were created by microsoft, they are - * parts of the sample project "wincap" given with the SDK Win32. - * - * Microsoft says that : - * - * You have a royalty-free right to use, modify, reproduce and - * distribute the Sample Files (and/or any modified version) in - * any way you find useful, provided that you agree that - * Microsoft has no warranty obligations or liability for any - * Sample Application Files which are modified. - * - ************************************************************************/ - -HDIB CreateDIB(DWORD dwWidth, DWORD dwHeight, WORD wBitCount) -{ - BITMAPINFOHEADER bi; // bitmap header - LPBITMAPINFOHEADER lpbi; // pointer to BITMAPINFOHEADER - DWORD dwLen; // size of memory block - HDIB hDIB; - DWORD dwBytesPerLine; // Number of bytes per scanline - - - // Make sure bits per pixel is valid - if (wBitCount <= 1) - wBitCount = 1; - else if (wBitCount <= 4) - wBitCount = 4; - else if (wBitCount <= 8) - wBitCount = 8; - else if (wBitCount <= 24) - wBitCount = 24; - else - wBitCount = 4; // set default value to 4 if parameter is bogus - - // initialize BITMAPINFOHEADER - bi.biSize = sizeof(BITMAPINFOHEADER); - bi.biWidth = dwWidth; // fill in width from parameter - bi.biHeight = dwHeight; // fill in height from parameter - bi.biPlanes = 1; // must be 1 - bi.biBitCount = wBitCount; // from parameter - bi.biCompression = BI_RGB; - bi.biSizeImage = (dwWidth*dwHeight*wBitCount)/8; //0; // 0's here -mean "default" - bi.biXPelsPerMeter = 2834; //0; - bi.biYPelsPerMeter = 2834; //0; - bi.biClrUsed = 0; - bi.biClrImportant = 0; - - // calculate size of memory block required to store the DIB. This - // block should be big enough to hold the BITMAPINFOHEADER, the color - // table, and the bits - - dwBytesPerLine = (((wBitCount * dwWidth) + 31) / 32 * 4); - dwLen = bi.biSize + PaletteSize((LPSTR)&bi) + (dwBytesPerLine * dwHeight); - - // alloc memory block to store our bitmap - hDIB = GlobalAlloc(GHND, dwLen); - - // major bummer if we couldn't get memory block - if (!hDIB) - { - return NULL; - } - - // lock memory and get pointer to it - lpbi = (VOID FAR *)GlobalLock(hDIB); - - // use our bitmap info structure to fill in first part of - // our DIB with the BITMAPINFOHEADER - *lpbi = bi; - - // Since we don't know what the colortable and bits should contain, - // just leave these blank. Unlock the DIB and return the HDIB. - - GlobalUnlock(hDIB); - - /* return handle to the DIB */ - return hDIB; -} - - -LPSTR FAR FindDIBBits(LPSTR lpDIB) -{ - return (lpDIB + *(LPDWORD)lpDIB + PaletteSize(lpDIB)); -} - - -WORD FAR PaletteSize(LPSTR lpDIB) -{ - /* calculate the size required by the palette */ - if (IS_WIN30_DIB (lpDIB)) - return (DIBNumColors(lpDIB) * sizeof(RGBQUAD)); - else - return (DIBNumColors(lpDIB) * sizeof(RGBTRIPLE)); -} - - -WORD DIBNumColors(LPSTR lpDIB) -{ - WORD wBitCount; // DIB bit count - - /* If this is a Windows-style DIB, the number of colors in the - * color table can be less than the number of bits per pixel - * allows for (i.e. lpbi->biClrUsed can be set to some value). - * If this is the case, return the appropriate value. - */ - - if (IS_WIN30_DIB(lpDIB)) - { - DWORD dwClrUsed; - - dwClrUsed = ((LPBITMAPINFOHEADER)lpDIB)->biClrUsed; - if (dwClrUsed) - return (WORD)dwClrUsed; - } - - /* Calculate the number of colors in the color table based on - * the number of bits per pixel for the DIB. - */ - if (IS_WIN30_DIB(lpDIB)) - wBitCount = ((LPBITMAPINFOHEADER)lpDIB)->biBitCount; 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    -DRAFT TIFF Technical Note #2				17-Mar-95
-============================
-
-This Technical Note describes serious problems that have been found in
-TIFF 6.0's design for embedding JPEG-compressed data in TIFF (Section 22
-of the TIFF 6.0 spec of 3 June 1992).  A replacement TIFF/JPEG
-specification is given.  Some corrections to Section 21 are also given.
-
-To permit TIFF implementations to continue to read existing files, the 6.0
-JPEG fields and tag values will remain reserved indefinitely.  However,
-TIFF writers are strongly discouraged from using the 6.0 JPEG design.  It
-is expected that the next full release of the TIFF specification will not
-describe the old design at all, except to note that certain tag numbers
-are reserved.  The existing Section 22 will be replaced by the
-specification text given in the second part of this Tech Note.
-
-
-Problems in TIFF 6.0 JPEG
-=========================
-
-Abandoning a published spec is not a step to be taken lightly.  This
-section summarizes the reasons that have forced this decision.
-TIFF 6.0's JPEG design suffers from design errors and limitations,
-ambiguities, and unnecessary complexity.
-
-
-Design errors and limitations
------------------------------
-
-The fundamental design error in the existing Section 22 is that JPEG's
-various tables and parameters are broken out as separate fields which the
-TIFF control logic must manage.  This is bad software engineering: that
-information should be treated as private to the JPEG codec
-(compressor/decompressor).  Worse, the fields themselves are specified
-without sufficient thought for future extension and without regard to
-well-established TIFF conventions.  Here are some of the significant
-problems:
-
-* The JPEGxxTable fields do not store the table data directly in the
-IFD/field structure; rather, the fields hold pointers to information
-elsewhere in the file.  This requires special-purpose code to be added to
-*every* TIFF-manipulating application, whether it needs to decode JPEG
-image data or not.  Even a trivial TIFF editor, for example a program to
-add an ImageDescription field to a TIFF file, must be explicitly aware of
-the internal structure of the JPEG-related tables, or else it will probably
-break the file.  Every other auxiliary field in the TIFF spec contains
-data, not pointers, and can be copied or relocated by standard code that
-doesn't know anything about the particular field.  This is a crucial
-property of the TIFF format that must not be given up.
-
-* To manipulate these fields, the TIFF control logic is required to know a
-great deal about JPEG details, for example such arcana as how to compute
-the length of a Huffman code table --- the length is not supplied in the
-field structure and can only be found by inspecting the table contents.
-This is again a violation of good software practice.  Moreover, it will
-prevent easy adoption of future JPEG extensions that might change these
-low-level details.
-
-* The design neglects the fact that baseline JPEG codecs support only two
-sets of Huffman tables: it specifies a separate table for each color
-component.  This implies that encoders must waste space (by storing
-duplicate Huffman tables) or else violate the well-founded TIFF convention
-that prohibits duplicate pointers.  Furthermore, baseline decoders must
-test to find out which tables are identical, a waste of time and code
-space.
-
-* The JPEGInterchangeFormat field also violates TIFF's proscription against
-duplicate pointers: the normal strip/tile pointers are expected to point
-into the larger data area pointed to by JPEGInterchangeFormat.  All TIFF
-editing applications must be specifically aware of this relationship, since
-they must maintain it or else delete the JPEGInterchangeFormat field.  The
-JPEGxxTables fields are also likely to point into the JPEGInterchangeFormat
-area, creating additional pointer relationships that must be maintained.
-
-* The JPEGQTables field is fixed at a byte per table entry; there is no
-way to support 16-bit quantization values.  This is a serious impediment
-to extending TIFF to use 12-bit JPEG.
-
-* The 6.0 design cannot support using different quantization tables in
-different strips/tiles of an image (so as to encode some areas at higher
-quality than others).  Furthermore, since quantization tables are tied
-one-for-one to color components, the design cannot support table switching
-options that are likely to be added in future JPEG revisions.
-
-
-Ambiguities
------------
-
-Several incompatible interpretations are possible for 6.0's treatment of
-JPEG restart markers:
-
-  * It is unclear whether restart markers must be omitted at TIFF segment
-    (strip/tile) boundaries, or whether they are optional.
-
-  * It is unclear whether the segment size is required to be chosen as
-    a multiple of the specified restart interval (if any); perhaps the
-    JPEG codec is supposed to be reset at each segment boundary as if
-    there were a restart marker there, even if the boundary does not fall
-    at a multiple of the nominal restart interval.
-
-  * The spec fails to address the question of restart marker numbering:
-    do the numbers begin again within each segment, or not?
-
-That last point is particularly nasty.  If we make numbering begin again
-within each segment, we give up the ability to impose a TIFF strip/tile
-structure on an existing JPEG datastream with restarts (which was clearly a
-goal of Section 22's authors).  But the other choice interferes with random
-access to the image segments: a reader must compute the first restart
-number to be expected within a segment, and must have a way to reset its
-JPEG decoder to expect a nonzero restart number first.  This may not even
-be possible with some JPEG chips.
-
-The tile height restriction found on page 104 contradicts Section 15's
-general description of tiles.  For an image that is not vertically
-downsampled, page 104 specifies a tile height of one MCU or 8 pixels; but
-Section 15 requires tiles to be a multiple of 16 pixels high.
-
-This Tech Note does not attempt to resolve these ambiguities, so
-implementations that follow the 6.0 design should be aware that
-inter-application compatibility problems are likely to arise.
-
-
-Unnecessary complexity
-----------------------
-
-The 6.0 design creates problems for implementations that need to keep the
-JPEG codec separate from the TIFF control logic --- for example, consider
-using a JPEG chip that was not designed specifically for TIFF.  JPEG codecs
-generally want to produce or consume a standard ISO JPEG datastream, not
-just raw compressed data.  (If they were to handle raw data, a separate
-out-of-band mechanism would be needed to load tables into the codec.)
-With such a codec, the TIFF control logic must parse JPEG markers emitted
-by the codec to create the TIFF table fields (when writing) or synthesize
-JPEG markers from the TIFF fields to feed the codec (when reading).  This
-means that the control logic must know a great deal more about JPEG details
-than we would like.  The parsing and reconstruction of the markers also
-represents a fair amount of unnecessary work.
-
-Quite a few implementors have proposed writing "TIFF/JPEG" files in which
-a standard JPEG datastream is simply dumped into the file and pointed to
-by JPEGInterchangeFormat.  To avoid parsing the JPEG datastream, they
-suggest not writing the JPEG auxiliary fields (JPEGxxTables etc) nor even
-the basic TIFF strip/tile data pointers.  This approach is incompatible
-with implementations that handle the full TIFF 6.0 JPEG design, since they
-will expect to find strip/tile pointers and auxiliary fields.  Indeed this
-is arguably not TIFF at all, since *all* TIFF-reading applications expect
-to find strip or tile pointers.  A subset implementation that is not
-upward-compatible with the full spec is clearly unacceptable.  However,
-the frequency with which this idea has come up makes it clear that
-implementors find the existing Section 22 too complex.
-
-
-Overview of the solution
-========================
-
-To solve these problems, we adopt a new design for embedding
-JPEG-compressed data in TIFF files.  The new design uses only complete,
-uninterpreted ISO JPEG datastreams, so it should be much more forgiving of
-extensions to the ISO standard.  It should also be far easier to implement
-using unmodified JPEG codecs.
-
-To reduce overhead in multi-segment TIFF files, we allow JPEG overhead
-tables to be stored just once in a JPEGTables auxiliary field.  This
-feature does not violate the integrity of the JPEG datastreams, because it
-uses the notions of "tables-only datastreams" and "abbreviated image
-datastreams" as defined by the ISO standard.
-
-To prevent confusion with the old design, the new design is given a new
-Compression tag value, Compression=7.  Readers that need to handle
-existing 6.0 JPEG files may read both old and new files, using whatever
-interpretation of the 6.0 spec they did before.  Compression tag value 6
-and the field tag numbers defined by 6.0 section 22 will remain reserved
-indefinitely, even though detailed descriptions of them will be dropped
-from future editions of the TIFF specification.
-
-
-Replacement TIFF/JPEG specification
-===================================
-
-[This section of the Tech Note is expected to replace Section 22 in the
-next release of the TIFF specification.]
-
-This section describes TIFF compression scheme 7, a high-performance
-compression method for continuous-tone images.
-
-Introduction
-------------
-
-This TIFF compression method uses the international standard for image
-compression ISO/IEC 10918-1, usually known as "JPEG" (after the original
-name of the standards committee, Joint Photographic Experts Group).  JPEG
-is a joint ISO/CCITT standard for compression of continuous-tone images.
-
-The JPEG committee decided that because of the broad scope of the standard,
-no one algorithmic procedure was able to satisfy the requirements of all
-applications.  Instead, the JPEG standard became a "toolkit" of multiple
-algorithms and optional capabilities.  Individual applications may select
-a subset of the JPEG standard that meets their requirements.
-
-The most important distinction among the JPEG processes is between lossy
-and lossless compression.  Lossy compression methods provide high
-compression but allow only approximate reconstruction of the original
-image.  JPEG's lossy processes allow the encoder to trade off compressed
-file size against reconstruction fidelity over a wide range.  Typically,
-10:1 or more compression of full-color data can be obtained while keeping
-the reconstructed image visually indistinguishable from the original.  Much
-higher compression ratios are possible if a low-quality reconstructed image
-is acceptable.  Lossless compression provides exact reconstruction of the
-source data, but the achievable compression ratio is much lower than for
-the lossy processes; JPEG's rather simple lossless process typically
-achieves around 2:1 compression of full-color data.
-
-The most widely implemented JPEG subset is the "baseline" JPEG process.
-This provides lossy compression of 8-bit-per-channel data.  Optional
-extensions include 12-bit-per-channel data, arithmetic entropy coding for
-better compression, and progressive/hierarchical representations.  The
-lossless process is an independent algorithm that has little in
-common with the lossy processes.
-
-It should be noted that the optional arithmetic-coding extension is subject
-to several US and Japanese patents.  To avoid patent problems, use of
-arithmetic coding processes in TIFF files intended for inter-application
-interchange is discouraged.
-
-All of the JPEG processes are useful only for "continuous tone" data,
-in which the difference between adjacent pixel values is usually small.
-Low-bit-depth source data is not appropriate for JPEG compression, nor
-are palette-color images good candidates.  The JPEG processes work well
-on grayscale and full-color data.
-
-Describing the JPEG compression algorithms in sufficient detail to permit
-implementation would require more space than we have here.  Instead, we
-refer the reader to the References section.
-
-
-What data is being compressed?
-------------------------------
-
-In lossy JPEG compression, it is customary to convert color source data
-to YCbCr and then downsample it before JPEG compression.  This gives
-2:1 data compression with hardly any visible image degradation, and it
-permits additional space savings within the JPEG compression step proper.
-However, these steps are not considered part of the ISO JPEG standard.
-The ISO standard is "color blind": it accepts data in any color space.
-
-For TIFF purposes, the JPEG compression tag is considered to represent the
-ISO JPEG compression standard only.  The ISO standard is applied to the
-same data that would be stored in the TIFF file if no compression were
-used.  Therefore, if color conversion or downsampling are used, they must
-be reflected in the regular TIFF fields; these steps are not considered to
-be implicit in the JPEG compression tag value.  PhotometricInterpretation
-and related fields shall describe the color space actually stored in the
-file.  With the TIFF 6.0 field definitions, downsampling is permissible
-only for YCbCr data, and it must correspond to the YCbCrSubSampling field.
-(Note that the default value for this field is not 1,1; so the default for
-YCbCr is to apply downsampling!)  It is likely that future versions of TIFF
-will provide additional PhotometricInterpretation values and a more general
-way of defining subsampling, so as to allow more flexibility in
-JPEG-compressed files.  But that issue is not addressed in this Tech Note.
-
-Implementors should note that many popular JPEG codecs
-(compressor/decompressors) provide automatic color conversion and
-downsampling, so that the application may supply full-size RGB data which
-is nonetheless converted to downsampled YCbCr.  This is an implementation
-convenience which does not excuse the TIFF control layer from its
-responsibility to know what is really going on.  The
-PhotometricInterpretation and subsampling fields written to the file must
-describe what is actually in the file.
-
-A JPEG-compressed TIFF file will typically have PhotometricInterpretation =
-YCbCr and YCbCrSubSampling = [2,1] or [2,2], unless the source data was
-grayscale or CMYK.
-
-
-Basic representation of JPEG-compressed images
-----------------------------------------------
-
-JPEG compression works in either strip-based or tile-based TIFF files.
-Rather than repeating "strip or tile" constantly, we will use the term
-"segment" to mean either a strip or a tile.
-
-When the Compression field has the value 7, each image segment contains
-a complete JPEG datastream which is valid according to the ISO JPEG
-standard (ISO/IEC 10918-1).  Any sequential JPEG process can be used,
-including lossless JPEG, but progressive and hierarchical processes are not
-supported.  Since JPEG is useful only for continuous-tone images, the
-PhotometricInterpretation of the image shall not be 3 (palette color) nor
-4 (transparency mask).  The bit depth of the data is also restricted as
-specified below.
-
-Each image segment in a JPEG-compressed TIFF file shall contain a valid
-JPEG datastream according to the ISO JPEG standard's rules for
-interchange-format or abbreviated-image-format data.  The datastream shall
-contain a single JPEG frame storing that segment of the image.  The
-required JPEG markers within a segment are:
-	SOI	(must appear at very beginning of segment)
-	SOFn
-	SOS	(one for each scan, if there is more than one scan)
-	EOI	(must appear at very end of segment)
-The actual compressed data follows SOS; it may contain RSTn markers if DRI
-is used.
-
-Additional JPEG "tables and miscellaneous" markers may appear between SOI
-and SOFn, between SOFn and SOS, and before each subsequent SOS if there is
-more than one scan.  These markers include:
-	DQT
-	DHT
-	DAC	(not to appear unless arithmetic coding is used)
-	DRI
-	APPn	(shall be ignored by TIFF readers)
-	COM	(shall be ignored by TIFF readers)
-DNL markers shall not be used in TIFF files.  Readers should abort if any
-other marker type is found, especially the JPEG reserved markers;
-occurrence of such a marker is likely to indicate a JPEG extension.
-
-The tables/miscellaneous markers may appear in any order.  Readers are
-cautioned that although the SOFn marker refers to DQT tables, JPEG does not
-require those tables to precede the SOFn, only the SOS.  Missing-table
-checks should be made when SOS is reached.
-
-If no JPEGTables field is used, then each image segment shall be a complete
-JPEG interchange datastream.  Each segment must define all the tables it
-references.  To allow readers to decode segments in any order, no segment
-may rely on tables being carried over from a previous segment.
-
-When a JPEGTables field is used, image segments may omit tables that have
-been specified in the JPEGTables field.  Further details appear below.
-
-The SOFn marker shall be of type SOF0 for strict baseline JPEG data, of
-type SOF1 for non-baseline lossy JPEG data, or of type SOF3 for lossless
-JPEG data.  (SOF9 or SOF11 would be used for arithmetic coding.)  All
-segments of a JPEG-compressed TIFF image shall use the same JPEG
-compression process, in particular the same SOFn type.
-
-The data precision field of the SOFn marker shall agree with the TIFF
-BitsPerSample field.  (Note that when PlanarConfiguration=1, this implies
-that all components must have the same BitsPerSample value; when
-PlanarConfiguration=2, different components could have different bit
-depths.)  For SOF0 only precision 8 is permitted; for SOF1, precision 8 or
-12 is permitted; for SOF3, precisions 2 to 16 are permitted.
-
-The image dimensions given in the SOFn marker shall agree with the logical
-dimensions of that particular strip or tile.  For strip images, the SOFn
-image width shall equal ImageWidth and the height shall equal RowsPerStrip,
-except in the last strip; its SOFn height shall equal the number of rows
-remaining in the ImageLength.  (In other words, no padding data is counted
-in the SOFn dimensions.)  For tile images, each SOFn shall have width
-TileWidth and height TileHeight; adding and removing any padding needed in
-the edge tiles is the concern of some higher level of the TIFF software.
-(The dimensional rules are slightly different when PlanarConfiguration=2,
-as described below.)
-
-The ISO JPEG standard only permits images up to 65535 pixels in width or
-height, due to 2-byte fields in the SOFn markers.  In TIFF, this limits
-the size of an individual JPEG-compressed strip or tile, but the total
-image size can be greater.
-
-The number of components in the JPEG datastream shall equal SamplesPerPixel
-for PlanarConfiguration=1, and shall be 1 for PlanarConfiguration=2.  The
-components shall be stored in the same order as they are described at the
-TIFF field level.  (This applies both to their order in the SOFn marker,
-and to the order in which they are scanned if multiple JPEG scans are
-used.)  The component ID bytes are arbitrary so long as each component
-within an image segment is given a distinct ID.  To avoid any possible
-confusion, we require that all segments of a TIFF image use the same ID
-code for a given component.
-
-In PlanarConfiguration 1, the sampling factors given in SOFn markers shall
-agree with the sampling factors defined by the related TIFF fields (or with
-the default values that are specified in the absence of those fields).
-
-When DCT-based JPEG is used in a strip TIFF file, RowsPerStrip is required
-to be a multiple of 8 times the largest vertical sampling factor, i.e., a
-multiple of the height of an interleaved MCU.  (For simplicity of
-specification, we require this even if the data is not actually
-interleaved.)  For example, if YCbCrSubSampling = [2,2] then RowsPerStrip
-must be a multiple of 16.  An exception to this rule is made for
-single-strip images (RowsPerStrip >= ImageLength): the exact value of
-RowsPerStrip is unimportant in that case.  This rule ensures that no data
-padding is needed at the bottom of a strip, except perhaps the last strip.
-Any padding required at the right edge of the image, or at the bottom of
-the last strip, is expected to occur internally to the JPEG codec.
-
-When DCT-based JPEG is used in a tiled TIFF file, TileLength is required
-to be a multiple of 8 times the largest vertical sampling factor, i.e.,
-a multiple of the height of an interleaved MCU; and TileWidth is required
-to be a multiple of 8 times the largest horizontal sampling factor, i.e.,
-a multiple of the width of an interleaved MCU.  (For simplicity of
-specification, we require this even if the data is not actually
-interleaved.)  All edge padding required will therefore occur in the course
-of normal TIFF tile padding; it is not special to JPEG.
-
-Lossless JPEG does not impose these constraints on strip and tile sizes,
-since it is not DCT-based.
-
-Note that within JPEG datastreams, multibyte values appear in the MSB-first
-order specified by the JPEG standard, regardless of the byte ordering of
-the surrounding TIFF file.
-
-
-JPEGTables field
-----------------
-
-The only auxiliary TIFF field added for Compression=7 is the optional
-JPEGTables field.  The purpose of JPEGTables is to predefine JPEG
-quantization and/or Huffman tables for subsequent use by JPEG image
-segments.  When this is done, these rather bulky tables need not be
-duplicated in each segment, thus saving space and processing time.
-JPEGTables may be used even in a single-segment file, although there is no
-space savings in that case.
-
-JPEGTables:
-	Tag = 347 (15B.H)
-	Type = UNDEFINED
-	N = number of bytes in tables datastream, typically a few hundred
-JPEGTables provides default JPEG quantization and/or Huffman tables which
-are used whenever a segment datastream does not contain its own tables, as
-specified below.
-
-Notice that the JPEGTables field is required to have type code UNDEFINED,
-not type code BYTE.  This is to cue readers that expanding individual bytes
-to short or long integers is not appropriate.  A TIFF reader will generally
-need to store the field value as an uninterpreted byte sequence until it is
-fed to the JPEG decoder.
-
-Multibyte quantities within the tables follow the ISO JPEG convention of
-MSB-first storage, regardless of the byte ordering of the surrounding TIFF
-file.
-
-When the JPEGTables field is present, it shall contain a valid JPEG
-"abbreviated table specification" datastream.  This datastream shall begin
-with SOI and end with EOI.  It may contain zero or more JPEG "tables and
-miscellaneous" markers, namely:
-	DQT
-	DHT
-	DAC	(not to appear unless arithmetic coding is used)
-	DRI
-	APPn	(shall be ignored by TIFF readers)
-	COM	(shall be ignored by TIFF readers)
-Since JPEG defines the SOI marker to reset the DAC and DRI state, these two
-markers' values cannot be carried over into any image datastream, and thus
-they are effectively no-ops in the JPEGTables field.  To avoid confusion,
-it is recommended that writers not place DAC or DRI markers in JPEGTables.
-However readers must properly skip over them if they appear.
-
-When JPEGTables is present, readers shall load the table specifications
-contained in JPEGTables before processing image segment datastreams.
-Image segments may simply refer to these preloaded tables without defining
-them.  An image segment can still define and use its own tables, subject to
-the restrictions below.
-
-An image segment may not redefine any table defined in JPEGTables.  (This
-restriction is imposed to allow readers to process image segments in random
-order without having to reload JPEGTables between segments.)  Therefore, use
-of JPEGTables divides the available table slots into two groups: "global"
-slots are defined in JPEGTables and may be used but not redefined by
-segments; "local" slots are available for local definition and use in each
-segment.  To permit random access, a segment may not reference any local
-tables that it does not itself define.
-
-
-Special considerations for PlanarConfiguration 2
-------------------------------------------------
-
-In PlanarConfiguration 2, each image segment contains data for only one
-color component.  To avoid confusing the JPEG codec, we wish the segments
-to look like valid single-channel (i.e., grayscale) JPEG datastreams.  This
-means that different rules must be used for the SOFn parameters.
-
-In PlanarConfiguration 2, the dimensions given in the SOFn of a subsampled
-component shall be scaled down by the sampling factors compared to the SOFn
-dimensions that would be used in PlanarConfiguration 1.  This is necessary
-to match the actual number of samples stored in that segment, so that the
-JPEG codec doesn't complain about too much or too little data.  In strip
-TIFF files the computed dimensions may need to be rounded up to the next
-integer; in tiled files, the restrictions on tile size make this case
-impossible.
-
-Furthermore, all SOFn sampling factors shall be given as 1.  (This is
-merely to avoid confusion, since the sampling factors in a single-channel
-JPEG datastream have no real effect.)
-
-Any downsampling will need to happen externally to the JPEG codec, since
-JPEG sampling factors are defined with reference to the full-precision
-component.  In PlanarConfiguration 2, the JPEG codec will be working on
-only one component at a time and thus will have no reference component to
-downsample against.
-
-
-Minimum requirements for TIFF/JPEG
-----------------------------------
-
-ISO JPEG is a large and complex standard; most implementations support only
-a subset of it.  Here we define a "core" subset of TIFF/JPEG which readers
-must support to claim TIFF/JPEG compatibility.  For maximum
-cross-application compatibility, we recommend that writers confine
-themselves to this subset unless there is very good reason to do otherwise.
-
-Use the ISO baseline JPEG process: 8-bit data precision, Huffman coding,
-with no more than 2 DC and 2 AC Huffman tables.  Note that this implies
-BitsPerSample = 8 for each component.  We recommend deviating from baseline
-JPEG only if 12-bit data precision or lossless coding is required.
-
-Use no subsampling (all JPEG sampling factors = 1) for color spaces other
-than YCbCr.  (This is, in fact, required with the TIFF 6.0 field
-definitions, but may not be so in future revisions.)  For YCbCr, use one of
-the following choices:
-	YCbCrSubSampling field		JPEG sampling factors
-	1,1				1h1v, 1h1v, 1h1v
-	2,1				2h1v, 1h1v, 1h1v
-	2,2  (default value)		2h2v, 1h1v, 1h1v
-We recommend that RGB source data be converted to YCbCr for best compression
-results.  Other source data colorspaces should probably be left alone.
-Minimal readers need not support JPEG images with colorspaces other than
-YCbCr and grayscale (PhotometricInterpretation = 6 or 1).
-
-A minimal reader also need not support JPEG YCbCr images with nondefault
-values of YCbCrCoefficients or YCbCrPositioning, nor with values of
-ReferenceBlackWhite other than [0,255,128,255,128,255].  (These values
-correspond to the RGB<=>YCbCr conversion specified by JFIF, which is widely
-implemented in JPEG codecs.)
-
-Writers are reminded that a ReferenceBlackWhite field *must* be included
-when PhotometricInterpretation is YCbCr, because the default
-ReferenceBlackWhite values are inappropriate for YCbCr.
-
-If any subsampling is used, PlanarConfiguration=1 is preferred to avoid the
-possibly-confusing requirements of PlanarConfiguration=2.  In any case,
-readers are not required to support PlanarConfiguration=2.
-
-If possible, use a single interleaved scan in each image segment.  This is
-not legal JPEG if there are more than 4 SamplesPerPixel or if the sampling
-factors are such that more than 10 blocks would be needed per MCU; in that
-case, use a separate scan for each component.  (The recommended color
-spaces and sampling factors will not run into that restriction, so a
-minimal reader need not support more than one scan per segment.)
-
-To claim TIFF/JPEG compatibility, readers shall support multiple-strip TIFF
-files and the optional JPEGTables field; it is not acceptable to read only
-single-datastream files.  Support for tiled TIFF files is strongly
-recommended but not required.
-
-
-Other recommendations for implementors
---------------------------------------
-
-The TIFF tag Compression=7 guarantees only that the compressed data is
-represented as ISO JPEG datastreams.  Since JPEG is a large and evolving
-standard, readers should apply careful error checking to the JPEG markers
-to ensure that the compression process is within their capabilities.  In
-particular, to avoid being confused by future extensions to the JPEG
-standard, it is important to abort if unknown marker codes are seen.
-
-The point of requiring that all image segments use the same JPEG process is
-to ensure that a reader need check only one segment to determine whether it
-can handle the image.  For example, consider a TIFF reader that has access
-to fast but restricted JPEG hardware, as well as a slower, more general
-software implementation.  It is desirable to check only one image segment
-to find out whether the fast hardware can be used.  Thus, writers should
-try to ensure that all segments of an image look as much "alike" as
-possible: there should be no variation in scan layout, use of options such
-as DRI, etc.  Ideally, segments will be processed identically except
-perhaps for using different local quantization or entropy-coding tables.
-
-Writers should avoid including "noise" JPEG markers (COM and APPn markers).
-Standard TIFF fields provide a better way to transport any non-image data.
-Some JPEG codecs may change behavior if they see an APPn marker they
-think they understand; since the TIFF spec requires these markers to be
-ignored, this behavior is undesirable.
-
-It is possible to convert an interchange-JPEG file (e.g., a JFIF file) to
-TIFF simply by dropping the interchange datastream into a single strip.
-(However, designers are reminded that the TIFF spec discourages huge
-strips; splitting the image is somewhat more work but may give better
-results.)  Conversion from TIFF to interchange JPEG is more complex.  A
-strip-based TIFF/JPEG file can be converted fairly easily if all strips use
-identical JPEG tables and no RSTn markers: just delete the overhead markers
-and insert RSTn markers between strips.  Converting tiled images is harder,
-since the data will usually not be in the right order (unless the tiles are
-only one MCU high).  This can still be done losslessly, but it will require
-undoing and redoing the entropy coding so that the DC coefficient
-differences can be updated.
-
-There is no default value for JPEGTables: standard TIFF files must define all
-tables that they reference.  For some closed systems in which many files will
-have identical tables, it might make sense to define a default JPEGTables
-value to avoid actually storing the tables.  Or even better, invent a
-private field selecting one of N default JPEGTables settings, so as to allow
-for future expansion.  Either of these must be regarded as a private
-extension that will render the files unreadable by other applications.
-
-
-References
-----------
-
-[1] Wallace, Gregory K.  "The JPEG Still Picture Compression Standard",
-Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44.
-
-This is the best short technical introduction to the JPEG algorithms.
-It is a good overview but does not provide sufficiently detailed
-information to write an implementation.
-
-[2] Pennebaker, William B. and Mitchell, Joan L.  "JPEG Still Image Data
-Compression Standard", Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.
-638pp.
-
-This textbook is by far the most complete exposition of JPEG in existence.
-It includes the full text of the ISO JPEG standards (DIS 10918-1 and draft
-DIS 10918-2).  No would-be JPEG implementor should be without it.
-
-[3] ISO/IEC IS 10918-1, "Digital Compression and Coding of Continuous-tone
-Still Images, Part 1: Requirements and guidelines", February 1994.
-ISO/IEC DIS 10918-2, "Digital Compression and Coding of Continuous-tone
-Still Images, Part 2: Compliance testing", final approval expected 1994.
-
-These are the official standards documents.  Note that the Pennebaker and
-Mitchell textbook is likely to be cheaper and more useful than the official
-standards.
-
-
-Changes to Section 21: YCbCr Images
-===================================
-
-[This section of the Tech Note clarifies section 21 to make clear the
-interpretation of image dimensions in a subsampled image.  Furthermore,
-the section is changed to allow the original image dimensions not to be
-multiples of the sampling factors.  This change is necessary to support use
-of JPEG compression on odd-size images.]
-
-Add the following paragraphs to the Section 21 introduction (p. 89),
-just after the paragraph beginning "When a Class Y image is subsampled":
-
-	In a subsampled image, it is understood that all TIFF image
-	dimensions are measured in terms of the highest-resolution
-	(luminance) component.  In particular, ImageWidth, ImageLength,
-	RowsPerStrip, TileWidth, TileLength, XResolution, and YResolution
-	are measured in luminance samples.
-
-	RowsPerStrip, TileWidth, and TileLength are constrained so that
-	there are an integral number of samples of each component in a
-	complete strip or tile.  However, ImageWidth/ImageLength are not
-	constrained.  If an odd-size image is to be converted to subsampled
-	format, the writer should pad the source data to a multiple of the
-	sampling factors by replication of the last column and/or row, then
-	downsample.  The number of luminance samples actually stored in the
-	file will be a multiple of the sampling factors.  Conversely,
-	readers must ignore any extra data (outside the specified image
-	dimensions) after upsampling.
-
-	When PlanarConfiguration=2, each strip or tile covers the same
-	image area despite subsampling; that is, the total number of strips
-	or tiles in the image is the same for each component.  Therefore
-	strips or tiles of the subsampled components contain fewer samples
-	than strips or tiles of the luminance component.
-
-	If there are extra samples per pixel (see field ExtraSamples),
-	these data channels have the same number of samples as the
-	luminance component.
-
-Rewrite the YCbCrSubSampling field description (pp 91-92) as follows
-(largely to eliminate possibly-misleading references to
-ImageWidth/ImageLength of the subsampled components):
-
-	(first paragraph unchanged)
-
-	The two elements of this field are defined as follows:
-
-	Short 0: ChromaSubsampleHoriz:
-
-	1 = there are equal numbers of luma and chroma samples horizontally.
-
-	2 = there are twice as many luma samples as chroma samples
-	horizontally.
-
-	4 = there are four times as many luma samples as chroma samples
-	horizontally.
-
-	Short 1: ChromaSubsampleVert:
-
-	1 = there are equal numbers of luma and chroma samples vertically.
-
-	2 = there are twice as many luma samples as chroma samples
-	vertically.
-
-	4 = there are four times as many luma samples as chroma samples
-	vertically.
-
-	ChromaSubsampleVert shall always be less than or equal to
-	ChromaSubsampleHoriz.  Note that Cb and Cr have the same sampling
-	ratios.
-
-	In a strip TIFF file, RowsPerStrip is required to be an integer
-	multiple of ChromaSubSampleVert (unless RowsPerStrip >=
-	ImageLength, in which case its exact value is unimportant).
-	If ImageWidth and ImageLength are not multiples of
-	ChromaSubsampleHoriz and ChromaSubsampleVert respectively, then the
-	source data shall be padded to the next integer multiple of these
-	values before downsampling.
-
-	In a tiled TIFF file, TileWidth must be an integer multiple of
-	ChromaSubsampleHoriz and TileLength must be an integer multiple of
-	ChromaSubsampleVert.  Padding will occur to tile boundaries.
-
-	The default values of this field are [ 2,2 ].  Thus, YCbCr data is
-	downsampled by default!
-
    diff --git a/tiff/html/addingtags.html b/tiff/html/addingtags.html deleted file mode 100755 index 1eab963..0000000 --- a/tiff/html/addingtags.html +++ /dev/null @@ -1,292 +0,0 @@ - - - -Modifying The TIFF Library - - - - - -

    -Defining New TIFF Tags -

    - -Libtiff has built-in knowledge of all the standard TIFF tags, as -well as extentions. The following describes how to add knowledge of -new tags as builtins to libtiff, or how to application specific tags can -be used by applications without modifying libtiff. -

    - -

    TIFFFieldInfo

    - -How libtiff manages specific tags is primarily controlled by the -definition for that tag value stored internally as a TIFFFieldInfo structure. -This structure looks like this: -

    - -

    -typedef	struct {
-  ttag_t    field_tag;          /* field's tag */
-  short	    field_readcount;    /* read count/TIFF_VARIABLE/TIFF_SPP */
-  short	    field_writecount;   /* write count/TIFF_VARIABLE */
-  TIFFDataType field_type;      /* type of associated data */
-  unsigned short field_bit;     /* bit in fieldsset bit vector */
-  unsigned char field_oktochange;/* if true, can change while writing */
-  unsigned char field_passcount;/* if true, pass dir count on set */
-  char	*field_name;		/* ASCII name */
-} TIFFFieldInfo;
-
    - -
      -
    • field_tag: the tag number. For instance 277 for the -SamplesPerPixel tag. Builtin tags will generally have a #define in -tiff.h for each known tag.

      - -

    • field_readcount: The number of values which should be read. -The special value TIFF_VARIABLE (-1) indicates that a variable number of -values may be read. The special value TIFFTAG_SPP (-2) indicates that there -should be one value for each sample as defined by TIFFTAG_SAMPLESPERPIXEL. -The special value TIFF_VARIABLE2 (-3) is presumably similar to TIFF_VARIABLE -though I am not sure what the distinction in behaviour is. This field -is TIFF_VARIABLE for variable length ascii fields.

      - -

    • field_writecount: The number of values which should be written. -Generally the same as field_readcount. A few built-in exceptions exist, but -I haven't analysed why they differ.

      - -

    • field_type: Type of the field. One of TIFF_BYTE, TIFF_ASCII, -TIFF_SHORT, TIFF_LONG, TIFF_RATIONAL, TIFF_SBYTE, TIFF_UNDEFINED, -TIFF_SSHORT, TIFF_SLONG, TIFF_SRATIONAL, TIFF_FLOAT, TIFF_DOUBLE or -TIFF_IFD. Note that some fields can support more than one type (for -instance short and long). These fields should have multiple TIFFFieldInfos. -

      - -

    • field_bit: Built-in tags stored in special fields in the -TIFF structure have assigned field numbers to distinguish them (ie. -FIELD_SAMPLESPERPIXEL). New tags should generally just use -FIELD_CUSTOM indicating they are stored in the generic tag list.

      - -

    • field_oktochange: TRUE if it is OK to change this tag value -while an image is being written. FALSE for stuff that must be set once -and then left unchanged (like ImageWidth, or PhotometricInterpretation for -instance).

      - -

    • field_passcount: If TRUE, then the count value must be passed -in TIFFSetField(), and TIFFGetField(), otherwise the count is not required. -This should generally be TRUE for non-ascii variable count tags unless -the count is implicit (such as with the colormap).

      - -

    • field_name: A name for the tag. Normally mixed case (studly caps) -like "StripByteCounts" and relatively short.

      - -

    - -A TIFFFieldInfo definition exists for each built-in tag in the tif_dirinfo.c -file. Some tags which support multiple data types have more than one -definition, one per data type supported.

    - -Various functions exist for getting the internal TIFFFieldInfo definitions, -including _TIFFFindFieldInfo(), and _TIFFFindFieldInfoByName(). See -tif_dirinfo.c for details. There must be some mechanism to get the whole -list, though I don't see it off hand.

    - -

    Default Tag Auto-registration

    - -In libtiff 3.6.0 a new mechanism was introduced allowing libtiff to -read unrecognised tags automatically. When an unknown tags is encountered, -it is automatically internally defined with a default name and a type -derived from the tag value in the file. Applications only need to predefine -application specific tags if they need to be able to set them in a file, or -if particular calling conventions are desired for TIFFSetField() and -TIFFGetField().

    - -When tags are autodefined like this the field_readcount and -field_writecount values are always TIFF_VARIABLE. The -field_passcount is always TRUE, and the field_bit is -FIELD_CUSTOM. The field name will be "Tag %d" where the %d is the tag -number.

    - -

    Defining Application Tags

    - -For various reasons, it is common for applications to want to define -their own tags to store information outside the core TIFF specification. -This is done by calling TIFFMergeFieldInfo() with one or more TIFFFieldInfos. -

    - -The libgeotiff library provides geospatial information extentions within -a TIFF file. First, a set of TIFFFieldInfo's is prepared with information -on the new tags:

    - -

    -static const TIFFFieldInfo xtiffFieldInfo[] = {
-  
-  /* XXX Insert Your tags here */
-    { TIFFTAG_GEOPIXELSCALE,	-1,-1, TIFF_DOUBLE,	FIELD_CUSTOM,
-      TRUE,	TRUE,	"GeoPixelScale" },
-    { TIFFTAG_GEOTRANSMATRIX,	-1,-1, TIFF_DOUBLE,	FIELD_CUSTOM,
-      TRUE,	TRUE,	"GeoTransformationMatrix" },
-    { TIFFTAG_GEOTIEPOINTS,	-1,-1, TIFF_DOUBLE,	FIELD_CUSTOM,
-      TRUE,	TRUE,	"GeoTiePoints" },
-    { TIFFTAG_GEOKEYDIRECTORY, -1,-1, TIFF_SHORT,	FIELD_CUSTOM,
-      TRUE,	TRUE,	"GeoKeyDirectory" },
-    { TIFFTAG_GEODOUBLEPARAMS,	-1,-1, TIFF_DOUBLE,	FIELD_CUSTOM,
-      TRUE,	TRUE,	"GeoDoubleParams" },
-    { TIFFTAG_GEOASCIIPARAMS,	-1,-1, TIFF_ASCII,	FIELD_CUSTOM,
-      TRUE,	FALSE,	"GeoASCIIParams" }
-};
-
    - -In order to define the tags, we call TIFFMergeFieldInfo() on the -desired TIFF handle with the list of TIFFFieldInfos.

    - -

    -#define	N(a)	(sizeof (a) / sizeof (a[0]))
-
-    /* Install the extended Tag field info */
-    TIFFMergeFieldInfo(tif, xtiffFieldInfo, N(xtiffFieldInfo));
-
    - -The tags need to be defined for each TIFF file opened - and when reading -they should be defined before the tags of the file are read, yet a valid -TIFF * is needed to merge the tags against. In order to get them -registered at the appropriate part of the setup process, it is necessary -to register our merge function as an extender callback with libtiff. -This is done with TIFFSetTagExtender(). We also keep track of the -previous tag extender (if any) so that we can call it from our extender -allowing a chain of customizations to take effect.

    - -

    -static TIFFExtendProc _ParentExtender = NULL;
-
-static
-void _XTIFFInitialize(void)
-{
-    static int first_time=1;
-	
-    if (! first_time) return; /* Been there. Done that. */
-    first_time = 0;
-	
-    /* Grab the inherited method and install */
-    _ParentExtender = TIFFSetTagExtender(_XTIFFDefaultDirectory);
-}
-
    - -The extender callback is looks like this. It merges in our new fields -and then calls the next extender if there is one in effect.

    - -

    -static void
-_XTIFFDefaultDirectory(TIFF *tif)
-{
-    /* Install the extended Tag field info */
-    TIFFMergeFieldInfo(tif, xtiffFieldInfo, N(xtiffFieldInfo));
-
-    /* Since an XTIFF client module may have overridden
-     * the default directory method, we call it now to
-     * allow it to set up the rest of its own methods.
-     */
-
-    if (_ParentExtender) 
-        (*_ParentExtender)(tif);
-}
-
    - -The above approach ensures that our new definitions are used when reading -or writing any TIFF file. However, since on reading we already have -default definitions for tags, it is usually not critical to pre-define them. -If tag definitions are only required for writing custom tags, you can just -call TIFFMergeFieldInfo() before setting new tags. The whole extender -architecture can then be avoided.

    - -

    Adding New Builtin Tags

    - -A similar approach is taken to the above. However, the TIFFFieldInfo -should be added to the tiffFieldInfo[] list in tif_dirinfo.c. Ensure that -new tags are added in sorted order by the tag number.

    - -Normally new built-in tags should be defined with FIELD_CUSTOM; however, if -it is desirable for the tag value to have it's own field in the TIFFDirectory -structure, then you will need to #define a new FIELD_ value for it, and -add appropriate handling as follows: - - -

      -
    1. Define the tag in tiff.h. -
    2. Add a field to the directory structure in tif_dir.h - and define a FIELD_* bit (also update the definition of - FIELD_CODEC to reflect your addition). -
    3. Add an entry in the TIFFFieldInfo array defined at the top of - tif_dirinfo.c. - Note that you must keep this array sorted by tag - number and that the widest variant entry for a tag should come - first (e.g. LONG before SHORT). -
    4. Add entries in _TIFFVSetField() and _TIFFVGetField() - for the new tag. -
    5. (optional) If the value associated with the tag is not a scalar value - (e.g. the array for TransferFunction) and requires - special processing, - then add the appropriate code to TIFFReadDirectory() and - TIFFWriteDirectory(). You're best off finding a similar tag and - cribbing code. -
    6. Add support to TIFFPrintDirectory() in tif_print.c - to print the tag's value. -
    - -

    -If you want to maintain portability, beware of making assumptions -about data types. Use the typedefs (uint16, etc. when dealing with -data on disk and t*_t when stuff is in memory) and be careful about -passing items through printf or similar vararg interfaces. - -

    Adding New Codec-private Tags

    - -To add tags that are meaningful only when a particular compression -algorithm is used follow these steps: - -
      -
    1. Define the tag in tiff.h. -
    2. Allocate storage for the tag values in the private state block of - the codec. -
    3. Insure the state block is created when the codec is initialized. -
    4. At TIFFInitfoo time override the method pointers in the - TIFF structure - for getting, setting and printing tag values. For example, -
      -    sp->vgetparent = tif->tif_vgetfield;
-    tif->tif_vgetfield = fooVGetField;	/* hook for codec tags */
-    sp->vsetparent = tif->tif_vsetfield;
-    tif->tif_vsetfield = fooVSetField;	/* hook for codec tags */
-    tif->tif_printdir = fooPrintDir;	/* hook for codec tags */
-
      - (Actually you may decide not to override the - tif_printdir method, but rather just specify it). -
    5. Create a private TIFFFieldInfo array for your tags and - merge them into the core tags at initialization time using - _TIFFMergeFieldInfo; e.g. -
      -    _TIFFMergeFieldInfo(tif, fooFieldInfo, N(fooFieldInfo));
-
      - (where N is a macro used liberaly throughout the distributed code). -
    6. Fill in the get and set routines. Be sure to call the parent method - for tags that you are not handled directly. Also be sure to set the - FIELD_* bits for tags that are to be written to the file. Note that - you can create ``pseudo-tags'' by defining tags that are processed - exclusively in the get/set routines and never written to file (see - the handling of TIFFTAG_FAXMODE in tif_fax3.c - for an example of this). -
    7. Fill in the print routine, if appropriate. -
    - -Note that space has been allocated in the FIELD_* bit space for -codec-private tags. Define your bits as FIELD_CODEC+<offset> to -keep them away from the core tags. If you need more tags than there -is room for, just increase FIELD_SETLONGS at the top of -tiffiop.h. - -
    - -Last updated: $Date: 2004-09-10 14:43:18 $ - - - - diff --git a/tiff/html/bugs.html b/tiff/html/bugs.html deleted file mode 100755 index 2ff4873..0000000 --- a/tiff/html/bugs.html +++ /dev/null @@ -1,61 +0,0 @@ - - -Bugs and the TIFF Mailing List - - - -

    - -Bugs, Bugzilla, and the TIFF Mailing List -

    - -

    -This software is free. Please let us know when you find a problem or -fix a bug. - -

    -Thanks to MapTools.org, libtiff now uses -bugzilla to track bugs. All bugs filed in the older bugzilla at -bugzilla.remotesensing.org (pre April 2008) have unfortunately been lost. -

    -If you think you've discovered a bug, please first check to see if it is -already known by looking at the list of already reported bugs. You can do so -by visiting the buglist at -http://bugzilla.maptools.org/buglist.cgi?product=libtiff. Also verify that -the problem is still reproducable with the current development software -from CVS. -

    -If you'd like to enter a new bug, you can do so at -http://bugzilla.maptools.org/enter_bug.cgi?product=libtiff. -

    -If you'd like to inform us about some kind of security issue that should not -be disclosed for a period of time, then you can contact maintainers directly. -Send a copies of your report to the following people: Frank Warmerdam -<warmerdam@pobox.com>, -Andrey Kiselev -<dron@ak4719.spb.edu>. -

    - -Of course, reporting bugs is no substitute for discussion. The -tiff@lists.maptools.org mailing -list is for users of this software, and discussion TIFF issues in general. -It is managed with the Mailman software, and the web interface for subscribing -and managing your access to the list is at:

    - - http://lists.maptools.org/mailman/listinfo/tiff

    - -Posts to the list are only accepted from members of the list in order -to limit the amount of spam propagated.

    - -A Long Term -Archive including recent messages, and most messages back to 1993, -with search capabilities is available, and -has been prepared and hosted by AWare -Systems.

    - - -

    - -Last updated: $Date: 2015-01-05 19:49:37 $ - - diff --git a/tiff/html/build.html b/tiff/html/build.html deleted file mode 100755 index ad8e189..0000000 --- a/tiff/html/build.html +++ /dev/null @@ -1,524 +0,0 @@ - - - - -Building the TIFF Software Distribution - - -

    Building the Software Distribution

    - -
    -This chapter contains step-by-step instructions on how to configure -and build the TIFF software distribution. The software is most -easily built on a UNIX system, but with a little bit of work it can -easily be built and used on other non-UNIX platforms. -
    - -

    Building on a UNIX System

    -To build the software on a UNIX system you need to first run the -configure shell script that is located in the top level of the -source directory. This script probes the target system for -necessary tools and functions and constructs a build environment in -which the software may be compiled. Once configuration is done, you -simply run make (or gmake) to build the software -and then make install to do the installation; for example: -
    -
    -hyla% cd ./tiff-4.0.0
-hyla% ./configure
-    ...lots of messages...
-hyla% make
-    ...lots of messages...
-hyla% make check
-    ...lots of messages...
-hyla# make install
-
    -Supplied makefiles are dependent on a make utility and a C -(and optionally a C++ compiler), so you will need these tools. -

    In general, the software is designed such that the following -should be ``make-able'' in each directory:

    -
    -
    -make [all]      build stuff
-make check      run the test suite
-make install    build&install stuff
-make clean      remove .o files, executables and cruft
-make distclean  remove everything, that can be recreated
-
    -Note that after running "make distclean" the -configure script must be run again to create the Makefiles -and other make-related files. -
    -

    Build Trees

    -There are two schemes for configuring and building the software. If -you intend to build the software for only one target system, you -can configure the software so that it is built in the same -directories as the source code. -
    -
    -hyla% gzip -dc tiff-4.0.0.tar.gz | tar -xf -
-hyla% cd ./tiff-4.0.0
-hyla% ./configure
-hyla% make
-hyla% make check
-hyla% make install
-
    -

    Otherwise, you can configure a build tree that is parallel to -the source tree hierarchy (or in some completely different place) -but which contains only configured files and files created during -the build procedure.

    -
    -
    -hyla% gzip -dc tiff-4.0.0.tar.gz | tar -xf -
-hyla% mkdir tiff-4.0.0-build
-hyla% cd ./tiff-4.0.0-build
-hyla% ../tiff-4.0.0/configure
-hyla% make
-hyla% make check
-hyla% make install
-
    -This second scheme is useful for: -
      -
    • building multiple targets from a single source tree
      • -
    • building from a read-only source tree (e.g. if you receive the -distribution on CD-ROM)
      • -
    • sharing the source files via a network, but building on -multiple systems
      • -
    - -
    -

    Configuration Options

    -The configuration process is critical to the proper compilation, -installation, and operation of the software. The configure script -runs a series of tests to decide whether or not the target system -supports required functionality and, if it does not, whether it can -emulate or workaround the missing functions. This procedure is -fairly complicated and, due to the nonstandard nature of most UNIX -systems, prone to error. The first time that you configure the -software for use you should check the output from the configure -script and look for anything that does not make sense for your -system. -

    A second function of the configure script is to set the default -configuration parameters for the software. Of particular note are -the directories where the software is to be installed. By default -the software is installed in the /usr/local hierarchy. To -change this behaviour the appropriate parameters can be specified -on the command line to configure. Run ./configure --help to -get a full list of possible options. Standard installation related -options are shown below.

    -
    -
-Installation directories:
-  --prefix=PREFIX         install architecture-independent files in PREFIX
-                          [/usr/local]
-  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
-                          [PREFIX]
-
-By default, `make install' will install all the files in
-`/usr/local/bin', `/usr/local/lib' etc.  You can specify
-an installation prefix other than `/usr/local' using `--prefix',
-for instance `--prefix=$HOME'.
-
-For better control, use the options below.
-
-Fine tuning of the installation directories:
-  --bindir=DIR            user executables [EPREFIX/bin]
-  --sbindir=DIR           system admin executables [EPREFIX/sbin]
-  --libexecdir=DIR        program executables [EPREFIX/libexec]
-  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
-  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
-  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --libdir=DIR            object code libraries [EPREFIX/lib]
-  --includedir=DIR        C header files [PREFIX/include]
-  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
-  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
-  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
-  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
-  --mandir=DIR            man documentation [DATAROOTDIR/man]
-  --docdir=DIR            documentation root [DATAROOTDIR/doc/tiff]
-  --htmldir=DIR           html documentation [DOCDIR]
-
-Program names:
-  --program-prefix=PREFIX            prepend PREFIX to installed program names
-  --program-suffix=SUFFIX            append SUFFIX to installed program names
-  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
-
-
    - -
    -

    Configuring Optional Packages/Support

    -The TIFF software comes with several packages that are installed -only as needed, or only if specifically configured at the time the -configure script is run. Packages can be configured via the -configure script commandline parameters. -
    -
    Static/Shared Objects Support
    -
    --enable-shared[=PKGS]    build shared -libraries [default=yes]
    ---enable-static[=PKGS]    build static -libraries [default=yes]     -

    These options control whether or not to configure the software -to build a shared and static binaries for the TIFF library. Use of -shared libraries can significantly reduce the disk space needed for -users of the TIFF software. If shared libarries are not used then -the code is statically linked into each application that uses it. -By default both types of binaries is configured.

    -

    ---enable-rpath             Enable -runtime linker paths (-R libtool option)

    -

    Add library directories (see other options below) to the TIFF -library run-time linker path.

    -

    --enable-ld-version-script  Enable linker version -script (default is disabled)

    -

    Add shared library symbol versioning on ELF-based systems (e.g. -Linux and FreeBSD) which use the GNU linker. This is needed if -several major versions of libtiff might be loaded at once into the -same program.

    -
    -
    JPEG Support
    -
    --disable-jpeg    disable IJG JPEG -library usage (required for JPEG compression, enabled by default) ---with-jpeg-include-dir=DIR    location of IJG -JPEG library headers ---with-jpeg-lib-dir=DIR    location of IJG JPEG -library binary)
    -
    The JPEG package enables support for the handling of -TIFF images with JPEG-encoded data. Support for JPEG-encoded data -requires the Independent JPEG Group (IJG) libjpeg -distribution; this software is available at http://www.ijg.org/. configure -script automatically tries to search for a working IJG JPEG -installation. If it fails to find library, JPEG support will be -automatically disabled.If you want specify the exact paths to -library binary and headers, use above switches for that.
    -
    ZIP Support
    -
    The ZIP support enables support for the handling of -TIFF images with deflate-encoded data. Support for deflate-encoded -data requires the freely available zlib distribution -written by Jean-loup Gailly and Mark Adler; this software is -available at http://www.zlib.org/. If ZIP support is -enabled the DIRS_LIBINC and DIR_GZLIB parameters -should also be set (see below). By default this package is not -configured.
    -
    - -
    - -

    Building the Software under Windows 95/98/NT/2000 with MS -VC++

    -With Microsoft Visual C++ installed, and properly configured for -commandline use (you will likely need to source VCVARS32.BAT in -AUTOEXEC.bAT or somewhere similar) you should be able to use the -provided makefile.vc. -

    The source package is delivered using Unix line termination -conventions, which work with MSVC but do not work with Windows -'notepad'. If you use unzip from the Info-Zip package, you -can extract the files using Windows normal line termination -conventions with a command similar to:

    -
    -  unzip -aa -a tiff-4.0.0.zip
-
    -

    By default libtiff expects that a pre-built zlib and jpeg -library are provided by the user. If this is not the case, then you -may edit libtiff\tiffconf.h using a text editor (e.g. notepad) and -comment out the entries for JPEG_SUPPORT, PIXARLOG_SUPPORT, and -ZIP_SUPPORT. Ignore the comment at the top of the file which says -that it has no influence on the build, because the statement is not -true for Windows. However, by taking this approach, libtiff will -not be able to open some TIFF files.

    -

    To build using the provided makefile.vc you may use:

    -
    -  C:\tiff-4.0.0> nmake /f makefile.vc clean
-  C:\tiff-4.0.0> nmake /f makefile.vc
-
-    or (the hard way)
-
-  C:\tiff-4.0.0> cd port
-  C:\tiff-4.0.0\port> nmake /f makefile.vc clean
-  C:\tiff-4.0.0\port> nmake /f makefile.vc
-  C:\tiff-4.0.0> cd ../libtiff
-  C:\tiff-4.0.0\libtiff> nmake /f makefile.vc clean
-  C:\tiff-4.0.0\libtiff> nmake /f makefile.vc
-  C:\tiff-4.0.0\libtiff> cd ..\tools
-  C:\tiff-4.0.0\tools> nmake /f makefile.vc clean
-  C:\tiff-4.0.0\tools> nmake /f makefile.vc
-
    -

    This will build the library file -libtiff\libtiff\libtiff.lib. This can be used in Win32 -programs. You may want to adjust the build options before start -compiling. All parameters contained in the nmake.opt -file.This is a plain text file you can open with your favorite text -editor.

    -

    The makefile also builds a DLL (libtiff.dll) with an associated -import library (libtiff_i.lib). Any builds using libtiff will need -to include the LIBTIFF\LIBTIFF directory in the include path.

    -

    The libtiff\tools\makefile.vc should build .exe's for -all the standard TIFF tool programs.

    -
    - -

    Building the Software on a VMS System

    -The VMS port was done by Karsten Spang (krs@kampsax.dk), who also "sort of" -maintains it. The VMS specific files are not in the main -directories. Instead they are placed under -[.CONTRIB.VMS...] in the distribution tree. Installation: -It is assumed that you have unpacked the tar file into a VMS -directory tree, in this text called DISK:[TIFF]. -
      -
    1. Move the VMS specific files to their proper directories. -
      -$ SET DEFAULT DISK:[TIFF.CONTRIB.VMS]
-$ RENAME [.LIBTIFF]*.* [-.-.LIBTIFF]
-$ RENAME [.TOOLS]*.* [-.-.TOOLS]
-
      2. -
    2. Compile the library. -
      -$ SET DEFAULT DISK:[TIFF.LIBTIFF]
-$ @MAKEVMS
-
      3. -
    3. Compile the tools. -
      -$ SET DEFAULT DISK:[TIFF.TOOLS]
-$ @MAKEVMS
-
      4. -
    4. Define the programs. -
      -$ DEFINE TIFFSHR DISK:[TIFF.LIBTIFF]TIFFSHR
-$ FAX2PS    :==$DISK:[TIFF.TOOLS]FAX2PS
-$ FAX2TIFF  :==$DISK:[TIFF.TOOLS]FAX2TIFF
-$ GIF2TIFF  :==$DISK:[TIFF.TOOLS]GIF2TIFF
-$ PAL2RGB   :==$DISK:[TIFF.TOOLS]PAL2RGB
-$ PPM2TIFF  :==$DISK:[TIFF.TOOLS]PPM2TIFF
-$ RAS2TIFF  :==$DISK:[TIFF.TOOLS]RAS2TIFF
-$ RGB2YCBCR :==$DISK:[TIFF.TOOLS]RGB2YCBCR
-$ THUMBNAIL :==$DISK:[TIFF.TOOLS]THUMBNAIL
-$ TIFF2BW   :==$DISK:[TIFF.TOOLS]TIFF2BW
-$ TIFF2PS   :==$DISK:[TIFF.TOOLS]TIFF2PS
-$ TIFFCMP   :==$DISK:[TIFF.TOOLS]TIFFCMP
-$ TIFFCP    :==$DISK:[TIFF.TOOLS]TIFFCP
-$ TIFFDITHER:==$DISK:[TIFF.TOOLS]TIFFDITHER
-$ TIFFDUMP  :==$DISK:[TIFF.TOOLS]TIFFDUMP
-$ TIFFINFO  :==$DISK:[TIFF.TOOLS]TIFFINFO
-$ TIFFMEDIAN:==$DISK:[TIFF.TOOLS]TIFFMEDIAN
-$ TIFFSPLIT :==$DISK:[TIFF.TOOLS]TIFFSPLIT
-$ YCBCR     :==$DISK:[TIFF.TOOLS]YCBCR
-
      5. -
    -You will want to add these lines to your LOGIN.COM file, -after changing the name of the directory that you have used on your -machine. -

    This release has been tested on OpenVMS/VAX 5.5-2, using VAX C -3.2. A previous release was tested under OpenVMS/AXP ?.? using DEC -C ?.?, it is believed that this release as well works on AXP. The -code contains some GNU C specific things. This does *not* imply, -however, that the VAX/GCC configuration has been tested, *it has -not*.

    -

    The command procedures (MAKEVMS.COM) for building the -library and tools, is believed to choose the correct options for -the VAX and AXP cases automatically.

    -

    On the AXP, IEEE floating point is used by default. If you want -VAX floating point, remove the /FLOAT=IEEE_FLOAT -qualifier, and change HAVE_IEEEFP=1 to -HAVE_IEEEFP=0 in the MAKEVMS.COM files in both -the libtiff and tools directories.

    -

    Compiling your own program on a VMS system:

    -When compiling a source file in which you "#include -<tiffio.h>", use the following command -
    -    $ CC/INCLUDE=DISK:[TIFF.LIBTIFF]
-
    -This ensures that the header file is found. On the AXP, also add -/FLOAT=IEEE_FLOAT (if used when building the library). -

    Linking your own program to the TIFF library on a VMS -system:

    -You can link to the library in two ways: Either using the shareable -library, or using the object library. On the VAX these -possibilities are: -
      -
    1. Using the shareable TIFF library. -
      -$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/OPTIONS,SYS$INPUT:/OPTIONS
-    SYS$SHARE:VAXCRTL/SHAREABLE
-
      2. -
    2. Using the TIFF object library. -
      -$ LINK MY_PROGRAM, -
-    DISK:[TIFF.LIBTIFF]TIFF/LIBRARY/INCLUDE=(TIF_FAX3SM,TIF_CODEC), -
-    SYS$INPUT:/OPTIONS
-    SYS$SHARE:VAXCRTL/SHAREABLE
-
      3. -
    -On AXP (and possibly also using DEC C on VAX) the corresponding -commands are -
      -
    1. Using the shareable TIFF library. -
      -$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/OPTIONS
-
      2. -
    2. Using the TIFF object library. -
      -$ LINK MY_PROGRAM,DISK:[TIFF.LIBTIFF]TIFF/LIBRARY
-
      3. -
    -Method 1 uses the shortest link time and smallest .EXE -files, but it requires that TIFFSHR is defined as above at -link time and at run time. Using the compilation -procedure above, the tools are linked in this way. -

    Method 2 gives somewhat longer link time and larger -.EXE files, but does not require TIFFSHR to be -defined. This method is recommended if you want to run your program -on another machine, and for some reason don't want to have the -library on that machine. If you plan to have more than one program -(including the tools) on the machine, it is recommended that you -copy the library to the other machine and use method 1.

    -
    - -

    Building the Software on Other Systems

    -This section contains information that might be useful if you are -working on a non-UNIX system that is not directly supported. All -library-related files described below are located in the -libtiff directory. -

    The library requires two files that are generated -on-the-fly. The file tif_fax3sm.c has the state -tables for the Group 3 and Group 4 decoders. This file is generated -by the mkg3states program on a UNIX system; for -example,

    -
    -
    -
-cd libtiff
-cc -o mkg3states mkg3states.c
-rm -f tif_fax3sm.c
-./mkg3states -c const tif_fax3sm.c
-
-
    -The -c option can be used to control whether or not the -resutling tables are generated with a const declaration. -The -s option can be used to specify a C storage class for -the table declarations. The -b option can be used to force -data values to be explicitly bracketed with ``{}'' (apparently -needed for some MS-Windows compilers); otherwise the structures are -emitted in as compact a format as possible. Consult the source code -for this program if you have questions. -

    The second file required to build the library, version.h, -contains the version information returned by the -TIFFGetVersion routine. This file is built on most systems -using the mkversion program and the contents of the -VERSION and tiff.alpha files; for example,

    -
    -
    -cd libtiff
-cc -o mkversion mkversion.c
-rm -f version.h
-./mkversion -v ../VERSION -a ../dist/tiff.alpha version.h
-
    -

    Otherwise, when building the library on a non-UNIX system be -sure to consult the files tiffcomp.h and tiffconf.h. -The former contains system compatibility definitions while the -latter is provided so that the software configuration can be -controlled on systems that do not support the make facility for -building the software.

    -

    Systems without a 32-bit compiler may not be able to handle some -of the codecs in the library; especially the Group 3 and 4 decoder. -If you encounter problems try disabling support for a particular -codec; consult the documentation.

    -

    Programs in the tools directory are written to assume an ANSI C -compilation environment. There may be a few POSIX'isms as well. The -code in the port directory is provided to emulate routines -that may be missing on some systems. On UNIX systems the -configure script automatically figures out which routines -are not present on a system and enables the use of the equivalent -emulation routines from the port directory. It may be -necessary to manually do this work on a non-UNIX system.

    -
    -

    Checking out the Software

    -

    Assuming you have working versions of tiffgt and -tiffsv, you can just use them to view any of the sample -images available for testing (see the section -on obtaining the test images). Otherwise, you can do a cursory -check of the library with the tiffcp and tiffcmp -programs. For example,

    -
    -
    -tiffcp -lzw cramps.tif x.tif
-tiffcmp cramps.tif x.tif
-
    -

    (tiffcmp should be silent if the files compare -correctly).

    -
    -

    Table of Contents

    -The following files makup the core library: -
    -libtiff/tiff.h                  TIFF spec definitions
-libtiff/tiffcomp.h              non-UNIX OS-compatibility definitions
-libtiff/tiffconf.h              non-UNIX configuration definitions
-libtiff/tiffio.h                public TIFF library definitions
-libtiff/tiffiop.h               private TIFF library definitions
-libtiff/t4.h                    CCITT Group 3/4 code tables+definitions
-libtiff/tif_dir.h               private defs for TIFF directory handling
-libtiff/tif_fax3.h              CCITT Group 3/4-related definitions
-libtiff/tif_predict.h           private defs for Predictor tag support
-libtiff/uvcode.h                LogL/LogLuv codec-specific definitions
-libtiff/version.h               version string (generated by Makefile)
-libtiff/tif_apple.c             Apple-related OS support
-libtiff/tif_atari.c             Atari-related OS support
-libtiff/tif_aux.c               auxilary directory-related functions
-libtiff/tif_close.c             close an open TIFF file
-libtiff/tif_codec.c             configuration table of builtin codecs
-libtiff/tif_compress.c          compression scheme support
-libtiff/tif_dir.c               directory tag interface code
-libtiff/tif_dirinfo.c           directory known tag support code
-libtiff/tif_dirread.c           directory reading code
-libtiff/tif_dirwrite.c          directory writing code
-libtiff/tif_dumpmode.c          "no" compression codec
-libtiff/tif_error.c             library error handler
-libtiff/tif_fax3.c              CCITT Group 3 and 4 codec
-libtiff/tif_fax3sm.c            G3/G4 state tables (generated by mkg3states)
-libtiff/tif_flush.c             i/o and directory state flushing
-libtiff/tif_getimage.c          TIFFRGBAImage support
-libtiff/tif_jpeg.c              JPEG codec (interface to the IJG distribution)
-libtiff/tif_luv.c               SGI LogL/LogLuv codec
-libtiff/tif_lzw.c               LZW codec
-libtiff/tif_msdos.c             MSDOS-related OS support
-libtiff/tif_next.c              NeXT 2-bit scheme codec (decoding only)
-libtiff/tif_open.c              open and simply query code
-libtiff/tif_packbits.c          Packbits codec
-libtiff/tif_pixarlog.c          Pixar codec
-libtiff/tif_predict.c           Predictor tag support
-libtiff/tif_print.c             directory printing support
-libtiff/tif_read.c              image data reading support
-libtiff/tif_strip.c             some strip-related code
-libtiff/tif_swab.c              byte and bit swapping support
-libtiff/tif_thunder.c           Thunderscan codec (decoding only)
-libtiff/tif_tile.c              some tile-related code
-libtiff/tif_unix.c              UNIX-related OS support
-libtiff/tif_version.c           library version support
-libtiff/tif_vms.c               VMS-related OS support
-libtiff/tif_warning.c           library warning handler
-libtiff/tif_win3.c              Windows-3.1-related OS support
-libtiff/tif_win32.c             Win32 (95/98/NT) related OS support
-libtiff/tif_write.c             image data writing support
-libtiff/tif_zip.c               Deflate codec
-
-libtiff/mkg3states.c            program to generate G3/G4 decoder state tables
-libtiff/mkspans.c               program to generate black-white span tables
-libtiff/mkversion.c             program to generate libtiff/version.h.
-
    -
    -Last updated: $Date: 2012-02-18 21:36:31 $ - - diff --git a/tiff/html/contrib.html b/tiff/html/contrib.html deleted file mode 100755 index e864e73..0000000 --- a/tiff/html/contrib.html +++ /dev/null @@ -1,209 +0,0 @@ - - - -Contributed TIFF Software - - - - - -

    - -Contributed TIFF Software -

    - - -

    -The contrib directory has contributed software that -uses the TIFF library or which is associated with the library -(typically glue and guidance for ports to non-UNIX platforms, or tools that -aren't directly TIFF related). - -
    - -

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    -contrib/vms - -scripts and files from Karsten Spang for building - the library and tools under VMS -
    -contrib/dbs - -various tools from Dan & Chris Sears, including a simple X-based viewer -
    -contrib/ras - -two programs by Patrick Naughton for converting - between Sun rasterfile format and TIFF (these - require libpixrect.a, as opposed to the one in - tools that doesn't) -
    -contrib/mac-mpw
    -contrib/mac-cw -    		 -scripts and files from Niles Ritter for building -the library and tools under Macintosh/MPW C and -code warrior. -
    -contrib/acorn - -scripts and files from Peter Greenham for building - the library and tools on an Acorn RISC OS system. -
    -contrib/win32 - -scripts and files from Scott Wagner for building -the library under Windows NT and Windows 95. (The makefile.vc in the -libtiff/libtiff directory may be sufficient for most users.) -
    -contrib/win_dib - -two separate implementations of TIFF to DIB code suitable for any Win32 -platform. Contributed by Mark James, and Philippe Tenenhaus. -
    -contrib/ojpeg - -Patch for IJG JPEG library related to support for some Old JPEG in TIFF files. -Contributed by Scott Marovich. -
    -contrib/dosdjgpp - -scripts and files from Alexander Lehmann for building - the library under MSDOS with the DJGPP v2 compiler. -
    -contrib/tags - -scripts and files from Niles Ritter for adding private - tag support at runtime, without changing libtiff. -
    -contrib/mfs - -code from Mike Johnson to read+write images in memory -without modifying the library -
    -contrib/pds - -various routines from Conrad Poelman; a TIFF image iterator and - code to support ``private sub-directories'' -
    -contrib/iptcutil - - -A utility by Bill Radcliffe to -convert an extracted IPTC Newsphoto caption from a binary blob to -ASCII text, and vice versa. IPTC binary blobs can be extracted from -images via the ImageMagick convert(1) -utility. - - -
    -contrib/addtiffo - - -A utility (and supporting subroutine) for building -one or more reduce resolution -overviews to an existing TIFF file. Supplied by -Frank Warmerdam. - -
    -contrib/stream - - -A class (TiffStream) for accessing TIFF files through a C++ stream -interface. Supplied by Avi Bleiweiss. - -
    - -

    -Questions regarding these packages are usually best directed toward -their authors. - -

    -

    - -Last updated: $Date: 2006-01-03 01:42:30 $ - - - diff --git a/tiff/html/document.html b/tiff/html/document.html deleted file mode 100755 index fc7ee55..0000000 --- a/tiff/html/document.html +++ /dev/null @@ -1,52 +0,0 @@ - - - -TIFF Documentation - - - - -

    - -TIFF Documentation -

    - -

    -A copy of the 6.0 specification is available from Adobe at -http://partners.adobe.com/public/developer/en/tiff/TIFF6.pdf, or from the libtiff -ftp site at -ftp://ftp.remotesensing.org/pub/libtiff/doc/TIFF6.pdf.

    - -

    -Draft TIFF Technical Note #2 covers problems -with the TIFF 6.0 design for embedding JPEG-compressed data in TIFF, and -describes an alternative.

    - -Other Adobe information on TIFF can be retrieved from: - - -http://partners.adobe.com/public/developer/tiff/index.html - -

    -Joris Van Damme maintains a list of known tags and their descriptions and -definitions. It is available online at - -http://www.awaresystems.be/imaging/tiff/tifftags.html - -

    -There is a FAQ, related both to TIFF format and libtiff library: - -http://www.awaresystems.be/imaging/tiff/faq.html - -

    -There is a preliminary BigTIFF Design for -a TIFF variation supporting files larger than 4GB. - -

    - -
    - Last updated: $Date: 2006-07-10 18:13:52 $ -
    - - - diff --git a/tiff/html/images.html b/tiff/html/images.html deleted file mode 100755 index 24acf25..0000000 --- a/tiff/html/images.html +++ /dev/null @@ -1,41 +0,0 @@ - - - -TIFF Test Images - - - - -

    - -TIFF Test Images -

    - -

    -Test images are available for most formats supported by the library. -Most of the images included in the test kit are also part of this -documentation (albeit in TIFF rather than GIF or JFIF). -The images are kept in a separate archive that should be located in -the same directory as this software. - -
    - -

    -The latest archive of test images is located at - -ftp://ftp.remotesensing.org/pub/libtiff/pics-3.8.0.tar.gz - -

    -There are two other good sources for TIFF test images: -the contributed software contrib/dbs includes several -programs that generate test images suitable for debugging, and -the tiffcp program can be used to generate a variety -of images with different storage characteristics. - -

    -

    - -Last updated: $Date: 2006-01-02 23:50:44 $ - - - diff --git a/tiff/html/images/Makefile.am b/tiff/html/images/Makefile.am deleted file mode 100755 index 840e149..0000000 --- a/tiff/html/images/Makefile.am +++ /dev/null @@ -1,46 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -docdir = $(LIBTIFF_DOCDIR)/html/images - -docfiles = \ - back.gif \ - bali.jpg \ - cat.gif \ - cover.jpg \ - cramps.gif \ - dave.gif \ - info.gif \ - jello.jpg \ - jim.gif \ - note.gif \ - oxford.gif \ - quad.jpg \ - ring.gif \ - smallliz.jpg \ - strike.gif \ - warning.gif - -dist_doc_DATA = $(docfiles) diff --git a/tiff/html/images/Makefile.in b/tiff/html/images/Makefile.in deleted file mode 100755 index b756fac..0000000 --- a/tiff/html/images/Makefile.in +++ /dev/null @@ -1,568 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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    LibTIFF - TIFF Library and Utilities

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Home Pagehttp://www.remotesensing.org/libtiff/
    Home Page Mirrorhttp://libtiff.maptools.org/
    Latest Stable Releasev4.0.4beta
    Master Download Sitedownload.osgeo.org, directory libtiff
    Windows BinariesGnuWin32 Project
    Mailing Listtiff@lists.maptools.org, - Subscription, - Archive. - Please, read the TIFF FAQ - before asking questions.
    Anonymous CVSexport CVSROOT=:pserver:cvsanon@cvs.maptools.org:/cvs/maptools/cvsroot
    - cvs login
    - (use empty password)
    - cvs checkout libtiff
     - to get the stable libtiff code or
    - cvs checkout -r branch-3-9 libtiff
    - to get the previous stable branch supporting the 3.9.X release series.
    -
    -

    - This software provides support for the Tag Image File Format (TIFF), - a widely used format for storing image data. The latest version of - the TIFF specification is available on-line - in several different formats. -

    -

    - Included in this software distribution is a library, libtiff, for - reading and writing TIFF, a small collection of tools for doing - simple manipulations of TIFF images, and documentation on the - library and tools. Libtiff is a portable software, it was built - and tested on various systems: UNIX flavors (Linux, BSD, Solaris, - MacOS X), Windows, and OpenVMS. It should be possible to port - libtiff and additional tools on other OSes. -

    -

    - The library, along with associated tool programs, should handle most of - your needs for reading and writing TIFF images on 32- and 64-bit - machines. -

    -

    - The software was originally authored and maintained by Sam Leffler. -

    -

    - Questions should be sent to the TIFF mailing list: - tiff@lists.maptools.org, with - a subscription interface at - http://lists.maptools.org/mailman/listinfo/tiff. -

    -

    - The persons responsible for putting up this site and putting together - versions >= 3.5.1 are - Frank Warmerdam, - Andrey Kiselev, - Bob Friesenhahn, - Joris Van Damme and Lee Howard. -

    -

    - The following sections are included in this documentation: -

    - -

    - BigTIFF News -

    - -
    -

    - Last updated $Date: 2012-09-22 16:12:44 $. -

    - - diff --git a/tiff/html/internals.html b/tiff/html/internals.html deleted file mode 100755 index 83d53b0..0000000 --- a/tiff/html/internals.html +++ /dev/null @@ -1,572 +0,0 @@ - - - -Modifying The TIFF Library - - - - -

    - -Modifying The TIFF Library -

    - - -

    -This chapter provides information about the internal structure of -the library, how to control the configuration when building it, and -how to add new support to the library. -The following sections are found in this chapter: - -

    - - -

    Library Configuration

     - -Information on compiling the library is given -elsewhere in this documentation. -This section describes the low-level mechanisms used to control -the optional parts of the library that are configured at build -time. Control is based on -a collection of C defines that are specified either on the compiler -command line or in a configuration file such as port.h -(as generated by the configure script for UNIX systems) -or tiffconf.h. - -

    -Configuration defines are split into three areas: -

      -
    • those that control which compression schemes are - configured as part of the builtin codecs, -
    • those that control support for groups of tags that - are considered optional, and -
    • those that control operating system or machine-specific support. -
    - -

    -If the define COMPRESSION_SUPPORT is not defined -then a default set of compression schemes is automatically -configured: -

      -
    • CCITT Group 3 and 4 algorithms (compression codes 2, 3, 4, and 32771), -
    • the Macintosh PackBits algorithm (compression 32773), -
    • a 4-bit run-length encoding scheme from ThunderScan (compression 32809), -
    • a 2-bit encoding scheme used by NeXT (compression 32766), and -
    • two experimental schemes intended for images with high dynamic range -(compression 34676 and 34677). -
    - -

    - -To override the default compression behaviour define -COMPRESSION_SUPPORT and then one or more additional defines -to enable configuration of the appropriate codecs (see the table -below); e.g. - -

      -#define	COMPRESSION_SUPPORT
-#define	CCITT_SUPPORT
-#define	PACKBITS_SUPPORT
-
    - -Several other compression schemes are configured separately from -the default set because they depend on ancillary software -packages that are not distributed with libtiff. - -

    -Support for JPEG compression is controlled by JPEG_SUPPORT. -The JPEG codec that comes with libtiff is designed for -use with release 5 or later of the Independent JPEG Group's freely -available software distribution. -This software can be retrieved from the directory -ftp.uu.net:/graphics/jpeg/. - - -

    -NOTE: -Enabling JPEG support automatically enables support for -the TIFF 6.0 colorimetry and YCbCr-related tags. - -

    -Experimental support for the deflate algorithm is controlled by -DEFLATE_SUPPORT. -The deflate codec that comes with libtiff is designed -for use with version 0.99 or later of the freely available -libz library written by Jean-loup Gailly and Mark Adler. -The data format used by this library is described -in the files -zlib-3.1.doc, -and -deflate-1.1.doc, -available in the directory -ftp.uu.net:/pub/archiving/zip/doc. -The library can be retried from the directory -ftp.uu.net:/pub/archiving/zip/zlib/ -(or try quest.jpl.nasa.gov:/beta/zlib/). - -

    -NOTE: -The deflate algorithm is experimental. Do not expect -to exchange files using this compression scheme; -it is included only because the similar, and more common, -LZW algorithm is claimed to be governed by licensing restrictions. - - -

    -By default tiffconf.h defines -COLORIMETRY_SUPPORT, -YCBCR_SUPPORT, -and -CMYK_SUPPORT. - -

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    DefineDescription
    CCITT_SUPPORTCCITT Group 3 and 4 algorithms (compression codes 2, 3, 4, - and 32771)
    PACKBITS_SUPPORTMacintosh PackBits algorithm (compression 32773)
    LZW_SUPPORTLempel-Ziv & Welch (LZW) algorithm (compression 5)
    THUNDER_SUPPORT4-bit -run-length encoding scheme from ThunderScan (compression 32809)
    NEXT_SUPPORT2-bit encoding scheme used by NeXT (compression 32766)
    OJPEG_SUPPORTobsolete JPEG scheme defined in the 6.0 spec (compression 6)
    JPEG_SUPPORTcurrent JPEG scheme defined in TTN2 (compression 7)
    ZIP_SUPPORTexperimental Deflate scheme (compression 32946)
    PIXARLOG_SUPPORTPixar's compression scheme for high-resolution color images (compression 32909)
    SGILOG_SUPPORTSGI's compression scheme for high-resolution color images (compression 34676 and 34677)
    COLORIMETRY_SUPPORTsupport for the TIFF 6.0 colorimetry tags
    YCBCR_SUPPORTsupport for the TIFF 6.0 YCbCr-related tags
    CMYK_SUPPORTsupport for the TIFF 6.0 CMYK-related tags
    ICC_SUPPORTsupport for the ICC Profile tag; see -The ICC Profile Format Specification, -Annex B.3 "Embedding ICC Profiles in TIFF Files"; -available at -http://www.color.org -
    - - -

    General Portability Comments

    - -This software is developed on Silicon Graphics UNIX -systems (big-endian, MIPS CPU, 32-bit ints, -IEEE floating point). -The configure shell script generates the appropriate -include files and make files for UNIX systems. -Makefiles exist for non-UNIX platforms that the -code runs on -- this work has mostly been done by other people. - -

    -In general, the code is guaranteed to work only on SGI machines. -In practice it is highly portable to any 32-bit or 64-bit system and much -work has been done to insure portability to 16-bit systems. -If you encounter portability problems please return fixes so -that future distributions can be improved. - -

    -The software is written to assume an ANSI C compilation environment. -If your compiler does not support ANSI function prototypes, const, -and <stdarg.h> then you will have to make modifications to the -software. In the past I have tried to support compilers without const -and systems without <stdarg.h>, but I am -no longer interested in these -antiquated environments. With the general availability of -the freely available GCC compiler, I -see no reason to incorporate modifications to the software for these -purposes. - -

    -An effort has been made to isolate as many of the -operating system-dependencies -as possible in two files: tiffcomp.h and -libtiff/tif_<os>.c. The latter file contains -operating system-specific routines to do I/O and I/O-related operations. -The UNIX (tif_unix.c), -Macintosh (tif_apple.c), -and VMS (tif_vms.c) -code has had the most use; -the MS/DOS support (tif_msdos.c) assumes -some level of UNIX system call emulation (i.e. -open, -read, -write, -fstat, -malloc, -free). - -

    -Native CPU byte order is determined on the fly by -the library and does not need to be specified. -The HOST_FILLORDER and HOST_BIGENDIAN -definitions are not currently used, but may be employed by -codecs for optimization purposes. - -

    -The following defines control general portability: - -

    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    BSDTYPESDefine this if your system does NOT define the - usual BSD typedefs: u_char, - u_short, u_int, u_long.
    HAVE_IEEEFPDefine this as 0 or 1 according to the floating point - format suported by the machine. If your machine does - not support IEEE floating point then you will need to - add support to tif_machdep.c to convert between the - native format and IEEE format.
    HAVE_MMAPDefine this if there is mmap-style support for -mapping files into memory (used only to read data).
    HOST_FILLORDERDefine the native CPU bit order: one of FILLORDER_MSB2LSB - or FILLORDER_LSB2MSB
    HOST_BIGENDIANDefine the native CPU byte order: 1 if big-endian (Motorola) - or 0 if little-endian (Intel); this may be used - in codecs to optimize code
    - -

    -On UNIX systems HAVE_MMAP is defined through the running of -the configure script; otherwise support for memory-mapped -files is disabled. -Note that tiffcomp.h defines HAVE_IEEEFP to be -1 (BSDTYPES is not defined). - - -

    Types and Portability

    - -The software makes extensive use of C typedefs to promote portability. -Two sets of typedefs are used, one for communication with clients -of the library and one for internal data structures and parsing of the -TIFF format. There are interactions between these two to be careful -of, but for the most part you should be able to deal with portability -purely by fiddling with the following machine-dependent typedefs: - - -

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    uint88-bit unsigned integertiff.h
    int88-bit signed integertiff.h
    uint1616-bit unsigned integertiff.h
    int1616-bit signed integertiff.h
    uint3232-bit unsigned integertiff.h
    int3232-bit signed integertiff.h
    dblparam_tpromoted type for floatstiffcomp.h
    - -

    -(to clarify dblparam_t, it is the type that float parameters are -promoted to when passed by value in a function call.) - -

    -The following typedefs are used throughout the library and interfaces -to refer to certain objects whose size is dependent on the TIFF image -structure: - - -

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    typedef unsigned int ttag_t; directory tag
    typedef uint16 tdir_t; directory index
    typedef uint16 tsample_t; sample number
    typedef uint32 tstrip_t; strip number
    typedef uint32 ttile_t; tile number
    typedef int32 tsize_t; i/o size in bytes
    typedef void* tdata_t; image data ref
    typedef void* thandle_t; client data handle
    typedef int32 toff_t; file offset (should be off_t)
    typedef unsigned char* tidata_t; internal image data
    - -

    -Note that tstrip_t, ttile_t, and tsize_t -are constrained to be -no more than 32-bit quantities by 32-bit fields they are stored -in in the TIFF image. Likewise tsample_t is limited by the 16-bit -field used to store the SamplesPerPixel tag. tdir_t -constrains -the maximum number of IFDs that may appear in an image and may -be an arbitrary size (without penalty). ttag_t must be either -int, unsigned int, pointer, or double -because the library uses a varargs -interface and ANSI C restricts the type of the parameter before an -ellipsis to be a promoted type. toff_t is defined as -int32 because -TIFF file offsets are (unsigned) 32-bit quantities. A signed -value is used because some interfaces return -1 on error (sigh). -Finally, note that tidata_t is used internally to the library to -manipulate internal data. User-specified data references are -passed as opaque handles and only cast at the lowest layers where -their type is presumed. - - -

    General Comments

    - -The library is designed to hide as much of the details of TIFF from -applications as -possible. In particular, TIFF directories are read in their entirety -into an internal format. Only the tags known by the library are -available to a user and certain tag data may be maintained that a user -does not care about (e.g. transfer function tables). - -

    Adding New Builtin Codecs

     - -To add builtin support for a new compression algorithm, you can either -use the "tag-extension" trick to override the handling of the -TIFF Compression tag (see Adding New Tags), -or do the following to add support directly to the core library: - -
      -
    1. Define the tag value in tiff.h. -
    2. Edit the file tif_codec.c to add an entry to the - _TIFFBuiltinCODECS array (see how other algorithms are handled). -
    3. Add the appropriate function prototype declaration to - tiffiop.h (close to the bottom). -
    4. Create a file with the compression scheme code, by convention files - are named tif_*.c (except perhaps on some systems where the - tif_ prefix pushes some filenames over 14 chars. -
    5. Edit Makefile.in (and any other Makefiles) - to include the new source file. -
    - -

    -A codec, say foo, can have many different entry points: - -

    -TIFFInitfoo(tif, scheme)/* initialize scheme and setup entry points in tif */
-fooSetupDecode(tif)	/* called once per IFD after tags has been frozen */
-fooPreDecode(tif, sample)/* called once per strip/tile, after data is read,
-			    but before the first row is decoded */
-fooDecode*(tif, bp, cc, sample)/* decode cc bytes of data into the buffer */
-    fooDecodeRow(...)	/* called to decode a single scanline */
-    fooDecodeStrip(...)	/* called to decode an entire strip */
-    fooDecodeTile(...)	/* called to decode an entire tile */
-fooSetupEncode(tif)	/* called once per IFD after tags has been frozen */
-fooPreEncode(tif, sample)/* called once per strip/tile, before the first row in
-			    a strip/tile is encoded */
-fooEncode*(tif, bp, cc, sample)/* encode cc bytes of user data (bp) */
-    fooEncodeRow(...)	/* called to decode a single scanline */
-    fooEncodeStrip(...)	/* called to decode an entire strip */
-    fooEncodeTile(...)	/* called to decode an entire tile */
-fooPostEncode(tif)	/* called once per strip/tile, just before data is written */
-fooSeek(tif, row)	/* seek forwards row scanlines from the beginning
-			   of a strip (row will always be >0 and <rows/strip */
-fooCleanup(tif)		/* called when compression scheme is replaced by user */
-
    - -

    -Note that the encoding and decoding variants are only needed when -a compression algorithm is dependent on the structure of the data. -For example, Group 3 2D encoding and decoding maintains a reference -scanline. The sample parameter identifies which sample is to be -encoded or decoded if the image is organized with PlanarConfig=2 -(separate planes). This is important for algorithms such as JPEG. -If PlanarConfig=1 (interleaved), then sample will always be 0. - -

    Other Comments

    - -The library handles most I/O buffering. There are two data buffers -when decoding data: a raw data buffer that holds all the data in a -strip, and a user-supplied scanline buffer that compression schemes -place decoded data into. When encoding data the data in the -user-supplied scanline buffer is encoded into the raw data buffer (from -where it is written). Decoding routines should never have to explicitly -read data -- a full strip/tile's worth of raw data is read and scanlines -never cross strip boundaries. Encoding routines must be cognizant of -the raw data buffer size and call TIFFFlushData1() when necessary. -Note that any pending data is automatically flushed when a new strip/tile is -started, so there's no need do that in the tif_postencode routine (if -one exists). Bit order is automatically handled by the library when -a raw strip or tile is filled. If the decoded samples are interpreted -by the decoding routine before they are passed back to the user, then -the decoding logic must handle byte-swapping by overriding the -tif_postdecode -routine (set it to TIFFNoPostDecode) and doing the required work -internally. For an example of doing this look at the horizontal -differencing code in the routines in tif_predict.c. - -

    -The variables tif_rawcc, tif_rawdata, and -tif_rawcp in a TIFF structure -are associated with the raw data buffer. tif_rawcc must be non-zero -for the library to automatically flush data. The variable -tif_scanlinesize is the size a user's scanline buffer should be. The -variable tif_tilesize is the size of a tile for tiled images. This -should not normally be used by compression routines, except where it -relates to the compression algorithm. That is, the cc parameter to the -tif_decode* and tif_encode* -routines should be used in terminating -decompression/compression. This ensures these routines can be used, -for example, to decode/encode entire strips of data. - -

    -In general, if you have a new compression algorithm to add, work from -the code for an existing routine. In particular, -tif_dumpmode.c -has the trivial code for the "nil" compression scheme, -tif_packbits.c is a -simple byte-oriented scheme that has to watch out for buffer -boundaries, and tif_lzw.c has the LZW scheme that has the most -complexity -- it tracks the buffer boundary at a bit level. -Of course, using a private compression scheme (or private tags) limits -the portability of your TIFF files. - -

    -

    - -Last updated: $Date: 2004-09-10 14:47:31 $ - - - - diff --git a/tiff/html/intro.html b/tiff/html/intro.html deleted file mode 100755 index 7b7bb82..0000000 --- a/tiff/html/intro.html +++ /dev/null @@ -1,68 +0,0 @@ - - - -Introduction to the TIFF Documentation - - - - -

    - -Introduction to the TIFF Documentation -

    - - -

    -The following definitions are used throughout this documentation. -They are consistent with the terminology used in the TIFF 6.0 specification. - -

    -
    Sample -
    The unit of information stored in an image; often called a - channel elsewhere. Sample values are numbers, usually unsigned - integers, but possibly in some other format if the SampleFormat - tag is specified in a TIFF -
    Pixel -
    A collection of one or more samples that go together. -
    Row -
    An Nx1 rectangular collection of pixels. -
    Tile -
    An NxM rectangular organization of data (or pixels). -
    Strip -
    A tile whose width is the full image width. -
    Compression -
    A scheme by which pixel or sample data are stored in - an encoded form, specifically with the intent of reducing the - storage cost. -
    Codec -
    Software that implements the decoding and encoding algorithms - of a compression scheme. - - -

    -In order to better understand how TIFF works (and consequently this -software) it is important to recognize the distinction between the -physical organization of image data as it is stored in a TIFF and how -the data is interpreted and manipulated as pixels in an image. TIFF -supports a wide variety of storage and data compression schemes that -can be used to optimize retrieval time and/or minimize storage space. -These on-disk formats are independent of the image characteristics; it -is the responsibility of the TIFF reader to process the on-disk storage -into an in-memory format suitable for an application. Furthermore, it -is the responsibility of the application to properly interpret the -visual characteristics of the image data. TIFF defines a framework for -specifying the on-disk storage format and image characteristics with -few restrictions. This permits significant complexity that can be -daunting. Good applications that handle TIFF work by handling as wide -a range of storage formats as possible, while constraining the -acceptable image characteristics to those that make sense for the -application. - - -

    -

    - -Last updated: $Date: 1999-08-09 20:21:21 $ - - - diff --git a/tiff/html/libtiff.html b/tiff/html/libtiff.html deleted file mode 100755 index 16355ad..0000000 --- a/tiff/html/libtiff.html +++ /dev/null @@ -1,747 +0,0 @@ - - - - Using The TIFF Library - - - - - - - - - - -
    -

    Using The TIFF Library

    -

    - libtiff is a set of C functions (a library) that support - the manipulation of TIFF image files. - The library requires an ANSI C compilation environment for building - and presumes an ANSI C environment for use. -

    -
    -
    -

    - libtiff - provides interfaces to image data at several layers of abstraction (and cost). - At the highest level image data can be read into an 8-bit/sample, - ABGR pixel raster format without regard for the underlying data organization, - colorspace, or compression scheme. Below this high-level interface - the library provides scanline-, strip-, and tile-oriented interfaces that - return data decompressed but otherwise untransformed. These interfaces - require that the application first identify the organization of stored - data and select either a strip-based or tile-based API for manipulating - data. At the lowest level the library - provides access to the raw uncompressed strips or tiles, - returning the data exactly as it appears in the file. -

    -

    - The material presented in this chapter is a basic introduction - to the capabilities of the library; it is not an attempt to describe - everything a developer needs to know about the library or about TIFF. - Detailed information on the interfaces to the library are given in - the UNIX - manual pages that accompany this software. -

    -

    - Michael Still has also written a useful introduction to libtiff for the - IBM DeveloperWorks site available at - http://www.ibm.com/developerworks/linux/library/l-libtiff. -

    -

    - The following sections are found in this chapter: -

    - -
    -

    How to tell which version you have

    -

    - The software version can be found by looking at the file named - VERSION - that is located at the top of the source tree; the precise alpha number - is given in the file dist/tiff.alpha. - If you have need to refer to this - specific software, you should identify it as: -

    -

    - TIFF <version> <alpha> -

    -

    - where <version> is whatever you get from - "cat VERSION" and <alpha> is - what you get from "cat dist/tiff.alpha". -

    -

    - Within an application that uses libtiff the TIFFGetVersion - routine will return a pointer to a string that contains software version - information. - The library include file <tiffio.h> contains a C pre-processor - define TIFFLIB_VERSION that can be used to check library - version compatiblity at compile time. -

    -
    -

    Library Datatypes

    -

    - libtiff defines a portable programming interface through the - use of a set of C type definitions. - These definitions, defined in in the files tiff.h and - tiffio.h, - isolate the libtiff API from the characteristics - of the underlying machine. - To insure portable code and correct operation, applications that use - libtiff should use the typedefs and follow the function - prototypes for the library API. -

    -
    -

    Memory Management

    -

    - libtiff uses a machine-specific set of routines for managing - dynamically allocated memory. - _TIFFmalloc, _TIFFrealloc, and _TIFFfree - mimic the normal ANSI C routines. - Any dynamically allocated memory that is to be passed into the library - should be allocated using these interfaces in order to insure pointer - compatibility on machines with a segmented architecture. - (On 32-bit UNIX systems these routines just call the normal malloc, - realloc, and free routines in the C library.) -

    -

    - To deal with segmented pointer issues libtiff also provides - _TIFFmemcpy, _TIFFmemset, and _TIFFmemmove - routines that mimic the equivalent ANSI C routines, but that are - intended for use with memory allocated through _TIFFmalloc - and _TIFFrealloc. -

    -
    -

    Error Handling

    -

    - libtiff handles most errors by returning an invalid/erroneous - value when returning from a function call. - Various diagnostic messages may also be generated by the library. - All error messages are directed to a single global error handler - routine that can be specified with a call to TIFFSetErrorHandler. - Likewise warning messages are directed to a single handler routine - that can be specified with a call to TIFFSetWarningHandler -

    -
    -

    Basic File Handling

    -

    - The library is modeled after the normal UNIX stdio library. - For example, to read from an existing TIFF image the - file must first be opened: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("foo.tif", "r");
    -     ... do stuff ...
    -     TIFFClose(tif);
    - }     -

    -

    - The handle returned by TIFFOpen is opaque, that is - the application is not permitted to know about its contents. - All subsequent library calls for this file must pass the handle - as an argument. -

    -

    - To create or overwrite a TIFF image the file is also opened, but with - a "w" argument: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("foo.tif", "w");
    -     ... do stuff ...
    -     TIFFClose(tif);
    - }     -

    -

    - If the file already exists it is first truncated to zero length. -

    - - - - - -
    Note that unlike the stdio library TIFF image files may not be - opened for both reading and writing; - there is no support for altering the contents of a TIFF file.
    -

    - libtiff buffers much information associated with writing a - valid TIFF image. Consequently, when writing a TIFF image it is necessary - to always call TIFFClose or TIFFFlush to flush any - buffered information to a file. Note that if you call TIFFClose - you do not need to call TIFFFlush. -

    -
    -

    TIFF Directories

    -

    - TIFF supports the storage of multiple images in a single file. - Each image has an associated data structure termed a directory - that houses all the information about the format and content of the - image data. - Images in a file are usually related but they do not need to be; it - is perfectly alright to store a color image together with a black and - white image. - Note however that while images may be related their directories are - not. - That is, each directory stands on its own; their is no need to read - an unrelated directory in order to properly interpret the contents - of an image. -

    -

    - libtiff provides several routines for reading and writing - directories. In normal use there is no need to explicitly - read or write a directory: the library automatically reads the first - directory in a file when opened for reading, and directory information - to be written is automatically accumulated and written when writing - (assuming TIFFClose or TIFFFlush are called). -

    -

    - For a file open for reading the TIFFSetDirectory routine can - be used to select an arbitrary directory; directories are referenced by - number with the numbering starting at 0. Otherwise the - TIFFReadDirectory and TIFFWriteDirectory routines can - be used for sequential access to directories. - For example, to count the number of directories in a file the following - code might be used: -

    -

    - #include "tiffio.h"
    - main(int argc, char* argv[])
    - {
    -     TIFF* tif = TIFFOpen(argv[1], "r");
    -     if (tif) {
    -         int dircount = 0;
    -         do {
    -             dircount++;
    -         } while (TIFFReadDirectory(tif));
    -         printf("%d directories in %s\n", dircount, argv[1]);
    -         TIFFClose(tif);
    -     }
    -     exit(0);
    - }     -

    -

    - Finally, note that there are several routines for querying the - directory status of an open file: - TIFFCurrentDirectory returns the index of the current - directory and - TIFFLastDirectory returns an indication of whether the - current directory is the last directory in a file. - There is also a routine, TIFFPrintDirectory, that can - be called to print a formatted description of the contents of - the current directory; consult the manual page for complete details. -

    -
    -

    TIFF Tags

    -

    - Image-related information such as the image width and height, number - of samples, orientation, colorimetric information, etc. - are stored in each image - directory in fields or tags. - Tags are identified by a number that is usually a value registered - with the Aldus (now Adobe) Corporation. - Beware however that some vendors write - TIFF images with tags that are unregistered; in this case interpreting - their contents is usually a waste of time. -

    -

    - libtiff reads the contents of a directory all at once - and converts the on-disk information to an appropriate in-memory - form. While the TIFF specification permits an arbitrary set of - tags to be defined and used in a file, the library only understands - a limited set of tags. - Any unknown tags that are encountered in a file are ignored. - There is a mechanism to extend the set of tags the library handles - without modifying the library itself; - this is described elsewhere. -

    -

    - libtiff provides two interfaces for getting and setting tag - values: TIFFGetField and TIFFSetField. - These routines use a variable argument list-style interface to pass - parameters of different type through a single function interface. - The get interface takes one or more pointers to memory locations - where the tag values are to be returned and also returns one or - zero according to whether the requested tag is defined in the directory. - The set interface takes the tag values either by-reference or - by-value. - The TIFF specification defines - default values for some tags. - To get the value of a tag, or its default value if it is undefined, - the TIFFGetFieldDefaulted interface may be used. -

    -

    - The manual pages for the tag get and set routines specifiy the exact data types - and calling conventions required for each tag supported by the library. -

    -
    -

    TIFF Compression Schemes

    -

    - libtiff includes support for a wide variety of - data compression schemes. - In normal operation a compression scheme is automatically used when - the TIFF Compression tag is set, either by opening a file - for reading, or by setting the tag when writing. -

    -

    - Compression schemes are implemented by software modules termed codecs - that implement decoder and encoder routines that hook into the - core library i/o support. - Codecs other than those bundled with the library can be registered - for use with the TIFFRegisterCODEC routine. - This interface can also be used to override the core-library - implementation for a compression scheme. -

    -
    -

    Byte Order

    -

    - The TIFF specification says, and has always said, that - a correct TIFF - reader must handle images in big-endian and little-endian byte order. - libtiff conforms in this respect. - Consequently there is no means to force a specific - byte order for the data written to a TIFF image file (data is - written in the native order of the host CPU unless appending to - an existing file, in which case it is written in the byte order - specified in the file). -

    -
    -

    Data Placement

    -

    - The TIFF specification requires that all information except an - 8-byte header can be placed anywhere in a file. - In particular, it is perfectly legitimate for directory information - to be written after the image data itself. - Consequently TIFF is inherently not suitable for passing through a - stream-oriented mechanism such as UNIX pipes. - Software that require that data be organized in a file in a particular - order (e.g. directory information before image data) does not - correctly support TIFF. - libtiff provides no mechanism for controlling the placement - of data in a file; image data is typically written before directory - information. -

    -
    -

    TIFFRGBAImage Support

    -

    - libtiff provides a high-level interface for reading image - data from a TIFF file. This interface handles the details of - data organization and format for a wide variety of TIFF files; - at least the large majority of those files that one would normally - encounter. Image data is, by default, returned as ABGR - pixels packed into 32-bit words (8 bits per sample). Rectangular - rasters can be read or data can be intercepted at an intermediate - level and packed into memory in a format more suitable to the - application. - The library handles all the details of the format of data stored on - disk and, in most cases, if any colorspace conversions are required: - bilevel to RGB, greyscale to RGB, CMYK to RGB, YCbCr to RGB, 16-bit - samples to 8-bit samples, associated/unassociated alpha, etc. -

    -

    - There are two ways to read image data using this interface. If - all the data is to be stored in memory and manipulated at once, - then the routine TIFFReadRGBAImage can be used: -

    -

    -

    - #include "tiffio.h"
    - main(int argc, char* argv[])
    - {
    -     TIFF* tif = TIFFOpen(argv[1], "r");
    -     if (tif) {
    -         uint32 w, h;
    -         size_t npixels;
    -         uint32* raster;
    -         
    -         TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
    -         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
    -         npixels = w * h;
    -         raster = (uint32*) _TIFFmalloc(npixels * sizeof (uint32));
    -         if (raster != NULL) {
    -             if (TIFFReadRGBAImage(tif, w, h, raster, 0)) {
    -                 ...process raster data...
    -             }
    -             _TIFFfree(raster);
    -         }
    -         TIFFClose(tif);
    -     }
    -     exit(0);
    - }     -

    -

    - Note above that _TIFFmalloc is used to allocate memory for - the raster passed to TIFFReadRGBAImage; this is important - to insure the ``appropriate type of memory'' is passed on machines - with segmented architectures. -

    -

    - Alternatively, TIFFReadRGBAImage can be replaced with a - more low-level interface that permits an application to have more - control over this reading procedure. The equivalent to the above - is: -

    -

    - #include "tiffio.h"
    - main(int argc, char* argv[])
    - {
    -     TIFF* tif = TIFFOpen(argv[1], "r");
    -     if (tif) {
    -         TIFFRGBAImage img;
    -         char emsg[1024];
    -         
    -         if (TIFFRGBAImageBegin(&img, tif, 0, emsg)) {
    -             size_t npixels;
    -             uint32* raster;
    -             
    -             npixels = img.width * img.height;
    -             raster = (uint32*) _TIFFmalloc(npixels * sizeof (uint32));
    -             if (raster != NULL) {
    -                 if (TIFFRGBAImageGet(&img, raster, img.width, img.height)) {
    -                     ...process raster data...
    -                 }
    -                 _TIFFfree(raster);
    -             }
    -             TIFFRGBAImageEnd(&img);
    -         } else
    -             TIFFError(argv[1], emsg);
    -         TIFFClose(tif);
    -     }
    -     exit(0);
    - }     -

    -

    - However this usage does not take advantage of the more fine-grained - control that's possible. That is, by using this interface it is - possible to: -

    -
      -
    • repeatedly fetch (and manipulate) an image without opening - and closing the file
      • -
    • interpose a method for packing raster pixel data according to - application-specific needs (or write the data at all)
      • -
    • interpose methods that handle TIFF formats that are not already - handled by the core library
      • -
    -

    - The first item means that, for example, image viewers that want to - handle multiple files can cache decoding information in order to - speedup the work required to display a TIFF image. -

    -

    - The second item is the main reason for this interface. By interposing - a "put method" (the routine that is called to pack pixel data in - the raster) it is possible share the core logic that understands how - to deal with TIFF while packing the resultant pixels in a format that - is optimized for the application. This alternate format might be very - different than the 8-bit per sample ABGR format the library writes by - default. For example, if the application is going to display the image - on an 8-bit colormap display the put routine might take the data and - convert it on-the-fly to the best colormap indices for display. -

    -

    - The last item permits an application to extend the library - without modifying the core code. - By overriding the code provided an application might add support - for some esoteric flavor of TIFF that it needs, or it might - substitute a packing routine that is able to do optimizations - using application/environment-specific information. -

    -

    - The TIFF image viewer found in tools/sgigt.c is an example - of an application that makes use of the TIFFRGBAImage - support. -

    -
    -

    Scanline-based Image I/O

    -

    - The simplest interface provided by libtiff is a - scanline-oriented interface that can be used to read TIFF - images that have their image data organized in strips - (trying to use this interface to read data written in tiles - will produce errors.) - A scanline is a one pixel high row of image data whose width - is the width of the image. - Data is returned packed if the image data is stored with samples - packed together, or as arrays of separate samples if the data - is stored with samples separated. - The major limitation of the scanline-oriented interface, other - than the need to first identify an existing file as having a - suitable organization, is that random access to individual - scanlines can only be provided when data is not stored in a - compressed format, or when the number of rows in a strip - of image data is set to one (RowsPerStrip is one). -

    -

    - Two routines are provided for scanline-based i/o: - TIFFReadScanline - and - TIFFWriteScanline. - For example, to read the contents of a file that - is assumed to be organized in strips, the following might be used: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         uint32 imagelength;
    -         tdata_t buf;
    -         uint32 row;
    -         
    -         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &imagelength);
    -         buf = _TIFFmalloc(TIFFScanlineSize(tif));
    -         for (row = 0; row < imagelength; row++)
    -             tiffreadscanline(tif, buf, row);
    -         _tifffree(buf);
    -         tiffclose(tif);
    -     }
    - }     -

    -

    - TIFFScanlineSize returns the number of bytes in - a decoded scanline, as returned by TIFFReadScanline. - Note however that if the file had been create with samples - written in separate planes, then the above code would only - read data that contained the first sample of each pixel; - to handle either case one might use the following instead: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         uint32 imagelength;
    -         tdata_t buf;
    -         uint32 row;
    -         
    -         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &imagelength);
    -         TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &config);
    -         buf = _TIFFmalloc(TIFFScanlineSize(tif));
    -         if (config == PLANARCONFIG_CONTIG) {
    -             for (row = 0; row < imagelength; row++)
    -                 tiffreadscanline(tif, buf, row);
    -         } else if (config == planarconfig_separate) {
    -             uint16 s, nsamples;
    -             
    -             tiffgetfield(tif, tifftag_samplesperpixel, &nsamples);
    -             for (s = 0; s < nsamples; s++)
    -                 for (row = 0; row < imagelength; row++)
    -                     tiffreadscanline(tif, buf, row, s);
    -         }
    -         _tifffree(buf);
    -         tiffclose(tif);
    -     }
    - }     -

    -

    - Beware however that if the following code were used instead to - read data in the case PLANARCONFIG_SEPARATE,... -

    -

    -             for (row = 0; row < imagelength; row++)
    -                 for (s = 0; s < nsamples; s++)
    -                     tiffreadscanline(tif, buf, row, s);     -

    -

    - ...then problems would arise if RowsPerStrip was not one - because the order in which scanlines are requested would require - random access to data within strips (something that is not supported - by the library when strips are compressed). -

    -
    -

    Strip-oriented Image I/O

    -

    - The strip-oriented interfaces provided by the library provide - access to entire strips of data. Unlike the scanline-oriented - calls, data can be read or written compressed or uncompressed. - Accessing data at a strip (or tile) level is often desirable - because there are no complications with regard to random access - to data within strips. -

    -

    - A simple example of reading an image by strips is: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         tdata_t buf;
    -         tstrip_t strip;
    -         
    -         buf = _TIFFmalloc(TIFFStripSize(tif));
    -         for (strip = 0; strip < tiffnumberofstrips(tif); strip++)
    -             tiffreadencodedstrip(tif, strip, buf, (tsize_t) -1);
    -         _tifffree(buf);
    -         tiffclose(tif);
    -     }
    - }     -

    -

    - Notice how a strip size of -1 is used; TIFFReadEncodedStrip - will calculate the appropriate size in this case. -

    -

    - The above code reads strips in the order in which the - data is physically stored in the file. If multiple samples - are present and data is stored with PLANARCONFIG_SEPARATE - then all the strips of data holding the first sample will be - read, followed by strips for the second sample, etc. -

    -

    - Finally, note that the last strip of data in an image may have fewer - rows in it than specified by the RowsPerStrip tag. A - reader should not assume that each decoded strip contains a full - set of rows in it. -

    -

    - The following is an example of how to read raw strips of data from - a file: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         tdata_t buf;
    -         tstrip_t strip;
    -         uint32* bc;
    -         uint32 stripsize;
    -         
    -         TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc);
    -         stripsize = bc[0];
    -         buf = _TIFFmalloc(stripsize);
    -         for (strip = 0; strip < tiffnumberofstrips(tif); strip++) {
    -             if (bc[strip] > stripsize) {
    -                 buf = _TIFFrealloc(buf, bc[strip]);
    -                 stripsize = bc[strip];
    -             }
    -             TIFFReadRawStrip(tif, strip, buf, bc[strip]);
    -         }
    -         _TIFFfree(buf);
    -         TIFFClose(tif);
    -     }
    - }     -

    -

    - As above the strips are read in the order in which they are - physically stored in the file; this may be different from the - logical ordering expected by an application. -

    -
    -

    Tile-oriented Image I/O

    -

    - Tiles of data may be read and written in a manner similar to strips. - With this interface, an image is - broken up into a set of rectangular areas that may have dimensions - less than the image width and height. All the tiles - in an image have the same size, and the tile width and length must each - be a multiple of 16 pixels. Tiles are ordered left-to-right and - top-to-bottom in an image. As for scanlines, samples can be packed - contiguously or separately. When separated, all the tiles for a sample - are colocated in the file. That is, all the tiles for sample 0 appear - before the tiles for sample 1, etc. -

    -

    - Tiles and strips may also be extended in a z dimension to form - volumes. Data volumes are organized as "slices". That is, all the - data for a slice is colocated. Volumes whose data is organized in - tiles can also have a tile depth so that data can be organized in - cubes. -

    -

    - There are actually two interfaces for tiles. - One interface is similar to scanlines, to read a tiled image, - code of the following sort might be used: -

    -

    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         uint32 imageWidth, imageLength;
    -         uint32 tileWidth, tileLength;
    -         uint32 x, y;
    -         tdata_t buf;
    -         
    -         TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &imageWidth);
    -         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &imageLength);
    -         TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tileWidth);
    -         TIFFGetField(tif, TIFFTAG_TILELENGTH, &tileLength);
    -         buf = _TIFFmalloc(TIFFTileSize(tif));
    -         for (y = 0; y < imagelength; y += tilelength)
    -             for (x = 0; x < imagewidth; x += tilewidth)
    -                 tiffreadtile(tif, buf, x, y, 0);
    -         _tifffree(buf);
    -         tiffclose(tif);
    -     }
    - }     -

    -

    - (once again, we assume samples are packed contiguously.) -

    -

    - Alternatively a direct interface to the low-level data is provided - a la strips. Tiles can be read with - TIFFReadEncodedTile or TIFFReadRawTile, - and written with TIFFWriteEncodedTile or - TIFFWriteRawTile. For example, to read all the tiles in an image: -

    -

    - #include "tiffio.h"
    - main()
    - {
    -     TIFF* tif = TIFFOpen("myfile.tif", "r");
    -     if (tif) {
    -         tdata_t buf;
    -         ttile_t tile;
    -         
    -         buf = _TIFFmalloc(TIFFTileSize(tif));
    -         for (tile = 0; tile < tiffnumberoftiles(tif); tile++)
    -             tiffreadencodedtile(tif, tile, buf, (tsize_t) -1);
    -         _tifffree(buf);
    -         tiffclose(tif);
    -     }
    - }     -

    -
    -

    Other Stuff

    -

    - Some other stuff will almost certainly go here... -

    -
    -

    - Last updated: $Date: 2005-12-28 06:53:18 $ -

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  2. '$$i'' >> $(indexfile); \ - done - ${ECHO} ${INDEXEND} >> $(indexfile) - -.PHONY: htmldoc -htmldoc: - for i in $(manpages); do \ - ${GROFF} $(MANSRCDIR)/$$i > $(HTMLMANDIR)/$$i.html; \ - done - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/tiff/html/man/TIFFClose.3tiff.html b/tiff/html/man/TIFFClose.3tiff.html deleted file mode 100755 index 720ca32..0000000 --- a/tiff/html/man/TIFFClose.3tiff.html +++ /dev/null @@ -1,87 +0,0 @@ - - - - - - -TIFFClose - - - -

    TIFFClose

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFClose − close a previously opened -TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    void TIFFClose(TIFF *tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFClose closes a file that was previously opened -with TIFFOpen(3TIFF). Any buffered data are flushed -to the file, including the contents of the current directory -(if modified); and all resources are reclaimed.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the routine. Likewise, -warning messages are directed to the -TIFFWarning(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF), TIFFOpen(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFDataWidth.3tiff.html b/tiff/html/man/TIFFDataWidth.3tiff.html deleted file mode 100755 index 575e3cb..0000000 --- a/tiff/html/man/TIFFDataWidth.3tiff.html +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - -TIFFDataWidth - - - -

    TIFFDataWidth

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFDataWidth − Get the size of TIFF data types

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFDataWidth(TIFFDataType -type)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFDataWidth returns a size of type in -bytes. Currently following data types are supported:
    -TIFF_BYTE
    -TIFF_ASCII
    -TIFF_SBYTE
    -TIFF_UNDEFINED
    -TIFF_SHORT
    -TIFF_SSHORT
    -TIFF_LONG
    -TIFF_SLONG
    -TIFF_FLOAT
    -TIFF_IFD
    -TIFF_RATIONAL
    -TIFF_SRATIONAL
    -TIFF_DOUBLE

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFDataWidth returns a number of bytes occupied -by the item of given type. 0 returned when uknown data type -supplied.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF),

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFError.3tiff.html b/tiff/html/man/TIFFError.3tiff.html deleted file mode 100755 index 721cec7..0000000 --- a/tiff/html/man/TIFFError.3tiff.html +++ /dev/null @@ -1,106 +0,0 @@ - - - - - - -TIFFError - - - -

    TIFFError

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFError, TIFFSetErrorHandler − library error -handling interface

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    void TIFFError(const char *module, const -char *fmt, ...)

    - -

    #include <stdarg.h>

    - -

    typedef void (*TIFFErrorHandler)(const char -*module, const char *fmt, -va_list ap);
    -TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler -handler);

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFError invokes the library-wide error handling -function to (normally) write an error message to the -stderr. The fmt parameter is a -printf(3S) format string, and any number arguments -can be supplied. The module parameter, if non-zero, -is printed before the message; it typically is used to -identify the software module in which an error is -detected.

    - -

    Applications that desire to capture control in the event -of an error should use TIFFSetErrorHandler to -override the default error handler. A NULL -(0) error handling function may be installed to suppress -error messages.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFSetErrorHandler returns a reference to the -previous error handling function.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFWarning(3TIFF), libtiff(3TIFF), -printf(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFFieldDataType.3tiff.html b/tiff/html/man/TIFFFieldDataType.3tiff.html deleted file mode 100755 index d6a463f..0000000 --- a/tiff/html/man/TIFFFieldDataType.3tiff.html +++ /dev/null @@ -1,89 +0,0 @@ - - - - - - - - - -TIFFFieldDataType - - - - -

    TIFFFieldDataType

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - - -

    TIFFFieldDataType -− Get TIFF data type from field information

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - - -

    TIFFDataType -TIFFFieldDataType(const TIFFField* -fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldDataType -returns the data type stored in a TIFF field.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldDataType -returns a member of the enum type TIFFDataType.

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFieldName.3tiff.html b/tiff/html/man/TIFFFieldName.3tiff.html deleted file mode 100755 index b270d4a..0000000 --- a/tiff/html/man/TIFFFieldName.3tiff.html +++ /dev/null @@ -1,86 +0,0 @@ - - - - - - - - - -TIFFFieldName - - - - -

    TIFFFieldName

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - -

    TIFFFieldName -− Get TIFF field name from field information

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    const char* -TIFFFieldName(const TIFFField* fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldName -returns the textual name for a TIFF field.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldName -returns a constant C string.

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFieldPassCount.3tiff.html b/tiff/html/man/TIFFFieldPassCount.3tiff.html deleted file mode 100755 index 480f736..0000000 --- a/tiff/html/man/TIFFFieldPassCount.3tiff.html +++ /dev/null @@ -1,98 +0,0 @@ - - - - - - - - - -TIFFFieldPassCount - - - - -

    TIFFFieldPassCount

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - - -

    TIFFFieldPassCount -− Get whether to pass a count to TIFFGet/SetField

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    int -TIFFFieldPassCount(const TIFFField* -fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldPassCount -returns true (nonzero) if TIFFGetField and -TIFFSetField expect a count value to be passed -before the actual data pointer.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    When a -count is required, it will be of type uint32 -when TIFFFieldReadCount reports -TIFF_VARIABLE2, and of type uint16 otherwise. -(This distinction is critical for use of -TIFFGetField, but normally not so for use of -TIFFSetField.)

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldPassCount -returns an integer that is always 1 (true) or 0 (false).

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFieldReadCount.3tiff.html b/tiff/html/man/TIFFFieldReadCount.3tiff.html deleted file mode 100755 index c77d4d3..0000000 --- a/tiff/html/man/TIFFFieldReadCount.3tiff.html +++ /dev/null @@ -1,101 +0,0 @@ - - - - - - - - - -TIFFFieldReadCount - - - - -

    TIFFFieldReadCount

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - - -

    TIFFFieldReadCount -− Get number of values to be read from field

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    int -TIFFFieldReadCount(const TIFFField* -fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldReadCount -returns the number of values available to be read from the -specified TIFF field; that is, the number of arguments that -should be supplied to TIFFGetField. For most field -types this is a small positive integer, typically 1 or 2, -but there are some special values:
    -TIFF_VARIABLE     indicates that a variable number of values -is possible; then, a uint16 count argument and -a pointer data argument must be supplied to -TIFFGetField.
    -TIFF_VARIABLE2     is the same as TIFF_VARIABLE -except that the count argument must have type -uint32.
    -TIFF_SPP     indicates that the number of arguments is equal -to the image’s number of samples per pixel.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldReadCount -returns an integer.

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFieldTag.3tiff.html b/tiff/html/man/TIFFFieldTag.3tiff.html deleted file mode 100755 index d1cc04a..0000000 --- a/tiff/html/man/TIFFFieldTag.3tiff.html +++ /dev/null @@ -1,88 +0,0 @@ - - - - - - - - - -TIFFFieldTag - - - - -

    TIFFFieldTag

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - -

    TIFFFieldTag -− Get TIFF field tag value from field information

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    uint32 -TIFFFieldTag(const TIFFField* fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldTag -returns the numeric tag value for a TIFF field. This can be -compared to various constants exported by the libtiff -header files, such as TIFFTAG_IMAGEWIDTH.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldTag -returns an integer tag value.

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFieldWriteCount.3tiff.html b/tiff/html/man/TIFFFieldWriteCount.3tiff.html deleted file mode 100755 index d72a8e3..0000000 --- a/tiff/html/man/TIFFFieldWriteCount.3tiff.html +++ /dev/null @@ -1,108 +0,0 @@ - - - - - - - - - -TIFFFieldWriteCount - - - - -

    TIFFFieldWriteCount

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - - -

    TIFFFieldWriteCount -− Get number of values to be written to field

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    int -TIFFFieldWriteCount(const TIFFField* -fip)

    - -

    DESCRIPTION - -

    - - - -

    TIFFFieldWriteCount -returns the number of values to be written into the -specified TIFF field; that is, the number of arguments that -should be supplied to TIFFSetField. For most field -types this is a small positive integer, typically 1 or 2, -but there are some special values:
    -TIFF_VARIABLE     indicates that a variable number of values -is possible; then, a uint16 count argument and -a pointer data argument must be supplied to -TIFFSetField.
    -TIFF_VARIABLE2     is the same as TIFF_VARIABLE -except that the count argument must have type -uint32. (On most modern machines, this makes no -practical difference, and the count argument can -simply be an int in either case.)
    -TIFF_SPP     indicates that the number of arguments must be -equal to the image’s number of samples per pixel.

    - -

    fip is a -field information pointer previously returned by -TIFFFindField, TIFFFieldWithTag, or -TIFFFieldWithName.

    - -

    For most field -types, TIFFFieldWriteCount returns the same value as -TIFFFieldReadCount, but there are some -exceptions.

    - -

    RETURN VALUES - -

    - - - -

    TIFFFieldWriteCount -returns an integer.

    - -

    SEE ALSO - -

    - - - -

    libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFFlush.3tiff.html b/tiff/html/man/TIFFFlush.3tiff.html deleted file mode 100755 index 742f3ae..0000000 --- a/tiff/html/man/TIFFFlush.3tiff.html +++ /dev/null @@ -1,113 +0,0 @@ - - - - - - -TIFFFlush - - - -

    TIFFFlush

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFFlush, TIFFFlushData − flush pending writes to -an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFFlush(TIFF *tif)
    -int TIFFFlushData(TIFF *    tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFFlush causes any pending writes for the -specified file (including writes for the current directory) -to be done. In normal operation this call is never needed -− the library automatically does any flushing -required.

    - -

    TIFFFlushData flushes any pending image data for -the specified file to be written out; directory-related data -are not flushed. In normal operation this call is never -needed − the library automatically does any flushing -required.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    0 is returned if an error is encountered, otherwise 1 is -returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteEncodedStrip(3TIFF), -TIFFWriteEncodedTile(3TIFF), -TIFFWriteRawStrip(3TIFF), -TIFFWriteRawTile(3TIFF), -TIFFWriteScanline(3TIFF), TIFFWriteTile(3TIFF) -libtiff(3TIFF),

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFGetField.3tiff.html b/tiff/html/man/TIFFGetField.3tiff.html deleted file mode 100755 index bd2f78b..0000000 --- a/tiff/html/man/TIFFGetField.3tiff.html +++ /dev/null @@ -1,1969 +0,0 @@ - - - - - - - - - -TIFFGetField - - - - -

    TIFFGetField

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -AUTOREGISTERED TAGS
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - -

    TIFFGetField, -TIFFVGetField − get the value(s) of a tag in an open -TIFF file

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    int -TIFFGetField(TIFF *tif, ttag_t -tag, ...)

    - -

    #include -<stdarg.h>

    - -

    int -TIFFVGetField(TIFF *tif, ttag_t -tag, va_list ap)
    -int TIFFGetFieldDefaulted(TIFF *    tif, -ttag_t tag, ...)
    -int TIFFVGetFieldDefaulted(TIFF *    tif, -ttag_t tag, va_list ap)

    - -

    DESCRIPTION - -

    - - - -

    TIFFGetField -returns the value of a tag or pseudo-tag associated with the -the current directory of the opened TIFF file -tif. (A pseudo-tag is a parameter that is used -to control the operation of the TIFF library -but whose value is not read or written to the underlying -file.) The file must have been previously opened with -TIFFOpen(3TIFF). The tag is identified by tag, -one of the values defined in the include file tiff.h -(see also the table below). The type and number of values -returned is dependent on the tag being requested. The -programming interface uses a variable argument list as -prescribed by the stdarg(3) interface. The returned -values should only be interpreted if TIFFGetField -returns 1.

    - - -

    TIFFVGetField -is functionally equivalent to TIFFGetField except -that it takes a pointer to a variable argument list. -TIFFVGetField is useful for layering interfaces on -top of the functionality provided by -TIFFGetField.

    - - -

    TIFFGetFieldDefaulted -and TIFFVGetFieldDefaulted are identical to -TIFFGetField and TIFFVGetField, except that if -a tag is not defined in the current directory and it has a -default value, then the default value is returned.

    - -

    The tags -understood by libtiff(3TIFF), the number of parameter -values, and the types for the returned values are shown -below. The data types are specified as in C and correspond -to the types used to specify tag values to -TIFFSetField(3TIFF). Remember that -TIFFGetField returns parameter values, so all the -listed data types are pointers to storage where values -should be returned. Consult the TIFF -specification (or relevant industry specification) for -information on the meaning of each tag and their possible -values.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - -

    Tag Name

    		 - - -

    Count

    		 -
    - - -

    Types

    		 - - -

    Notes

    - - -

    TIFFTAG_ARTIST

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_BADFAXLINES

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_BITSPERSAMPLE

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_CLEANFAXDATA

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_COLORMAP

    		 - - -

    3

    		 -
    - - -

    uint16**

    		 - - -

    1<<BitsPerSample arrays

    - - -

    TIFFTAG_COMPRESSION

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_CONSECUTIVEBADFAXLINES

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_COPYRIGHT

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_DATATYPE

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_DATETIME

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_DOCUMENTNAME

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_DOTRANGE

    		 - - -

    2

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_EXTRASAMPLES

    		 - - -

    2

    		 -
    - - -

    uint16*,uint16**

    		 - - -

    count & types array

    - - -

    TIFFTAG_FAXFILLFUNC

    		 - - -

    1

    		 -
    - - -

    TIFFFaxFillFunc*

    		 - - -

    G3/G4 compression pseudo-tag

    - - -

    TIFFTAG_FAXMODE

    		 - - -

    1

    		 -
    - - -

    int*

    		 - - -

    G3/G4 compression pseudo-tag

    - - -

    TIFFTAG_FILLORDER

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_GROUP3OPTIONS

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_GROUP4OPTIONS

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_HALFTONEHINTS

    		 - - -

    2

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_HOSTCOMPUTER

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_ICCPROFILE

    		 - - -

    2

    		 -
    - - -

    uint32*,void**

    		 - - -

    count, profile data

    - - -

    TIFFTAG_IMAGEDEPTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_IMAGEDESCRIPTION

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_IMAGELENGTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_IMAGEWIDTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_INKNAMES

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_INKSET

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_JPEGCOLORMODE

    		 - - -

    1

    		 -
    - - -

    int*

    		 - - -

    JPEG pseudo-tag

    - - -

    TIFFTAG_JPEGQUALITY

    		 - - -

    1

    		 -
    - - -

    int*

    		 - - -

    JPEG pseudo-tag

    - - -

    TIFFTAG_JPEGTABLES

    		 - - -

    2

    		 -
    - - -

    uint32*,void**

    		 - - -

    count & tables

    - - -

    TIFFTAG_JPEGTABLESMODE

    		 - - -

    1

    		 -
    - - -

    int*

    		 - - -

    JPEG pseudo-tag

    - - -

    TIFFTAG_MAKE

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_MATTEING

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_MAXSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_MINSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_MODEL

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_ORIENTATION

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_PAGENAME

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_PAGENUMBER

    		 - - -

    2

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_PHOTOMETRIC

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_PHOTOSHOP

    		 - - -

    2

    		 -
    - - -

    uint32*,void**

    		 - - -

    count, data

    - - -

    TIFFTAG_PLANARCONFIG

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_PREDICTOR

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_PRIMARYCHROMATICITIES

    		 - - -

    1

    		 -
    - - -

    float**

    		 - - -

    6-entry array

    - - -

    TIFFTAG_REFERENCEBLACKWHITE

    		 - - -

    1

    		 -
    - - -

    float**

    		 - - -

    6-entry array

    - - -

    TIFFTAG_RESOLUTIONUNIT

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_RICHTIFFIPTC

    		 - - -

    2

    		 -
    - - -

    uint32*,void**

    		 - - -

    count, data

    - - -

    TIFFTAG_ROWSPERSTRIP

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_SAMPLEFORMAT

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_SAMPLESPERPIXEL

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_SMAXSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    double*

    		 -
    - - -

    TIFFTAG_SMINSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    double*

    		 -
    - - -

    TIFFTAG_SOFTWARE

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_STONITS

    		 - - -

    1

    		 -
    - - -

    double**

    		 -
    - - -

    TIFFTAG_STRIPBYTECOUNTS

    		 - - -

    1

    		 -
    - - -

    uint32**

    		 -
    - - -

    TIFFTAG_STRIPOFFSETS

    		 - - -

    1

    		 -
    - - -

    uint32**

    		 -
    - - -

    TIFFTAG_SUBFILETYPE

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_SUBIFD

    		 - - -

    2

    		 -
    - - -

    uint16*,uint32**

    		 - - -

    count & offsets array

    - - -

    TIFFTAG_TARGETPRINTER

    		 - - -

    1

    		 -
    - - -

    char**

    		 -
    - - -

    TIFFTAG_THRESHHOLDING

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_TILEBYTECOUNTS

    		 - - -

    1

    		 -
    - - -

    uint32**

    		 -
    - - -

    TIFFTAG_TILEDEPTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_TILELENGTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_TILEOFFSETS

    		 - - -

    1

    		 -
    - - -

    uint32**

    		 -
    - - -

    TIFFTAG_TILEWIDTH

    		 - - -

    1

    		 -
    - - -

    uint32*

    		 -
    - - -

    TIFFTAG_TRANSFERFUNCTION

    		 - - -

    1 or 3†

    		 - - -

    uint16**1<<BitsPerSample entry arrays

    - - -

    TIFFTAG_WHITEPOINT

    		 - - -

    1

    		 -
    - - -

    float**

    		 - - -

    2-entry array

    - - -

    TIFFTAG_XMLPACKET

    		 - - -

    2

    		 -
    - - -

    uint32*,void**

    		 - - -

    count, data

    - - -

    TIFFTAG_XPOSITION

    		 - - -

    1

    		 -
    - - -

    float*

    		 -
    - - -

    TIFFTAG_XRESOLUTION

    		 - - -

    1

    		 -
    - - -

    float*

    		 -
    - - -

    TIFFTAG_YCBCRCOEFFICIENTS

    		 - - -

    1

    		 -
    - - -

    float**

    		 - - -

    3-entry array

    - - -

    TIFFTAG_YCBCRPOSITIONING

    		 - - -

    1

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_YCBCRSUBSAMPLING

    		 - - -

    2

    		 -
    - - -

    uint16*

    		 -
    - - -

    TIFFTAG_YPOSITION

    		 - - -

    1

    		 -
    - - -

    float*

    		 -
    - - -

    TIFFTAG_YRESOLUTION

    		 - - -

    1

    		 -
    - - -

    float*‡

    		 -
    - -

    † If -SamplesPerPixel is one, then a single array is -returned; otherwise three arrays are returned.
    -‡ The contents of this field are quite complex. See -The ICC Profile Format Specification, Annex B.3 -"Embedding ICC Profiles in TIFF Files" (available -at http://www.color.org) for an explanation.

    - -

    AUTOREGISTERED TAGS - -

    - - -

    If you -can’t find the tag in the table above that means this -is unsupported tag. But you still be able to read it’s -value if you know the data type of that tag. For example, if -you want to read the LONG value from the tag 33424 and ASCII -string from the tag 36867 you can use the following -code:

    - -

    uint16 count; -
    -void *data;

    - - -

    TIFFGetField(tiff, -33424, &count, &data);
    -printf("Tag %d: %d, count %d0, 33424, *(uint32 *)data, -count);
    -TIFFGetField(tiff, 36867, &count, &data);
    -printf("Tag %d: %s, count %d0, 36867, (char *)data, -count);

    - -

    is not -supported by libtiff(3TIFF), library

    - -

    RETURN VALUES - -

    - - -

    1 is returned -if the tag is defined in the current directory; otherwise a -0 is returned.

    - -

    DIAGNOSTICS - -

    - - -

    All error -messages are directed to the TIFFError(3TIFF) -routine.

    - -

    Unknown -field, tag 0x%x. An unknown tag was supplied.

    - -

    SEE ALSO - -

    - - - -

    TIFFOpen(3TIFF), -TIFFSetField(3TIFF), TIFFSetDirectory(3TIFF), -TIFFReadDirectory(3TIFF), -TIFFWriteDirectory(3TIFF) libtiff(3TIFF),

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFOpen.3tiff.html b/tiff/html/man/TIFFOpen.3tiff.html deleted file mode 100755 index 2379121..0000000 --- a/tiff/html/man/TIFFOpen.3tiff.html +++ /dev/null @@ -1,421 +0,0 @@ - - - - - - -TIFFOpen - - - -

    TIFFOpen

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BYTE ORDER
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFOpen, TIFFFdOpen, TIFFClientOpen − open a -TIFF file for reading or writing

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    TIFF* TIFFOpen(const char *filename, -const char *mode)
    -TIFF* TIFFFdOpen(const int     fd, const char -*filename, const char -*mode)

    - -

    typedef tsize_t (*TIFFReadWriteProc)(thandle_t, -tdata_t, tsize_t);
    -typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int);
    -typedef int (*TIFFCloseProc)(thandle_t);
    -typedef toff_t (*TIFFSizeProc)(thandle_t);
    -typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, -toff_t*);
    -typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, -toff_t);

    - -

    TIFF* TIFFClientOpen(const char -*filename, const char *mode, -thandle_t clientdata, TIFFReadWriteProc -readproc, TIFFReadWriteProc -writeproc, TIFFSeekProc seekproc, -TIFFCloseProc closeproc, TIFFSizeProc -sizeproc, TIFFMapFileProc mapproc, -TIFFUnmapFileProc unmapproc)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFOpen opens a TIFF file whose -name is filename and returns a handle to be used in -subsequent calls to routines in libtiff. If the open -operation fails, then zero is returned. The mode -parameter specifies if the file is to be opened for reading -(‘‘r’’), writing -(‘‘w’’), or appending -(‘‘a’’) and, optionally, whether to -override certain default aspects of library operation (see -below). When a file is opened for appending, existing data -will not be touched; instead new data will be written as -additional subfiles. If an existing file is opened for -writing, all previous data is overwritten.

    - -

    If a file is opened for reading, the first -TIFF directory in the file is automatically -read (also see TIFFSetDirectory(3TIFF) for reading -directories other than the first). If a file is opened for -writing or appending, a default directory is automatically -created for writing subsequent data. This directory has all -the default values specified in TIFF Revision -6.0: BitsPerSample=1, ThreshHolding=bilevel -art scan, FillOrder=1 (most significant bit of each -data byte is filled first), Orientation=1 (the 0th -row represents the visual top of the image, and the 0th -column represents the visual left hand side), -SamplesPerPixel=1, RowsPerStrip=infinity, -ResolutionUnit=2 (inches), and Compression=1 -(no compression). To alter these values, or to define values -for additional fields, TIFFSetField(3TIFF) must be -used.

    - -

    TIFFFdOpen is like TIFFOpen except that it -opens a TIFF file given an open file -descriptor fd. The file’s name and mode must -reflect that of the open descriptor. The object associated -with the file descriptor must support random -access.

    - -

    TIFFClientOpen is like TIFFOpen except that -the caller supplies a collection of functions that the -library will use to do UNIX -like I/O -operations. The readproc and writeproc are -called to read and write data at the current file position. -seekproc is called to change the current file -position a la lseek(2). closeproc is invoked -to release any resources associated with an open file. -sizeproc is invoked to obtain the size in bytes of a -file. mapproc and unmapproc are called to map -and unmap a file’s contents in memory; c.f. -mmap(2) and munmap(2). The clientdata -parameter is an opaque ‘‘handle’’ -passed to the client-specified routines passed as parameters -to TIFFClientOpen.

    -
    - -

    OPTIONS

    - - - - - -
    -

    The open mode parameter can include the following flags -in addition to the ‘‘r’’, -‘‘w’’, and -‘‘a’’ flags. Note however that -option flags must follow the read-write-append -specification.

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    l

    -    		 - -

    When creating a new file force information be written -with Little-Endian byte order (but see below). By default -the library will create new files using the native -CPU byte order.

    -    		 -
    - -

    b

    -    		 - -

    When creating a new file force information be written -with Big-Endian byte order (but see below). By default the -library will create new files using the native -CPU byte order.

    -    		 -
    - -

    L

    -    		 - -

    Force image data that is read or written to be treated -with bits filled from Least Significant Bit ( -LSB ) to Most Significant Bit ( -MSB ). Note that this is the opposite to the -way the library has worked from its inception.

    -    		 -
    - -

    B

    -    		 - -

    Force image data that is read or written to be treated -with bits filled from Most Significant Bit ( -MSB ) to Least Significant Bit ( -LSB ); this is the default.

    -    		 -
    - -

    H

    -    		 - -

    Force image data that is read or written to be treated -with bits filled in the same order as the native -CPU.

    -    		 -
    - -

    M

    -    		 - -

    Enable the use of memory-mapped files for images opened -read-only. If the underlying system does not support -memory-mapped files or if the specific image being opened -cannot be memory-mapped then the library will fallback to -using the normal system interface for reading information. -By default the library will attempt to use memory-mapped -files.

    -    		 -
    - -

    m

    -    		 - -

    Disable the use of memory-mapped files.

    -    		 -
    - -

    C

    -    		 - -

    Enable the use of ‘‘strip -chopping’’ when reading images that are -comprised of a single strip or tile of uncompressed data. -Strip chopping is a mechanism by which the library will -automatically convert the single-strip image to multiple -strips, each of which has about 8 Kilobytes of data. This -facility can be useful in reducing the amount of memory used -to read an image because the library normally reads each -strip in its entirety. Strip chopping does however alter the -apparent contents of the image because when an image is -divided into multiple strips it looks as though the -underlying file contains multiple separate strips. Finally, -note that default handling of strip chopping is a -compile-time configuration parameter. The default behaviour, -for backwards compatibility, is to enable strip -chopping.

    -    		 -
    - -

    c

    -    		 - -

    Disable the use of strip chopping when reading -images.

    -    		 -
    - -

    h

    -    		 - -

    Read TIFF header only, do not load the first image -directory. That could be useful in case of the broken first -directory. We can open the file and proceed to the other -directories.

    -    		 -
    - -

    BYTE ORDER

    - - - - - -
    -

    The TIFF specification (all -versions) states that compliant readers must be -capable of reading images written in either byte order. -Nonetheless some software that claims to support the reading -of TIFF images is incapable of reading images -in anything but the native CPU byte order on -which the software was written. (Especially notorious are -applications written to run on Intel-based machines.) By -default the library will create new files with the native -byte-order of the CPU on which the -application is run. This ensures optimal performance and is -portable to any application that conforms to the TIFF -specification. To force the library to use a specific -byte-order when creating a new file the -‘‘b’’ and -‘‘l’’ option flags may be included -in the call to open a file; for example, -‘‘wb’’ or -‘‘wl’’.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    Upon successful completion TIFFOpen, -TIFFFdOpen, and TIFFClientOpen return a -TIFF pointer. Otherwise, NULL is -returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine. Likewise, warning messages -are directed to the TIFFWarning(3TIFF) routine.

    - -

    "%s": Bad mode. The specified -mode parameter was not one of -‘‘r’’ (read), -‘‘w’’ (write), or -‘‘a’’ (append).

    - -

    %s: Cannot open. TIFFOpen() was unable to -open the specified filename for read/writing.

    - -

    Cannot read TIFF header. An error occurred while -attempting to read the header information.

    - -

    Error writing TIFF header. An error occurred while -writing the default header information for a new file.

    - -

    Not a TIFF file, bad magic number %d (0x%x). The -magic number in the header was not (hex) 0x4d4d or (hex) -0x4949.

    - -

    Not a TIFF file, bad version number %d (0x%x). The -version field in the header was not 42 (decimal).

    - -

    Cannot append to file that has opposite byte -ordering. A file with a byte ordering opposite to the -native byte ordering of the current machine was opened for -appending (‘‘a’’). This is a -limitation of the library.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF), TIFFClose(3TIFF)

    -
    -
    - - diff --git a/tiff/html/man/TIFFPrintDirectory.3tiff.html b/tiff/html/man/TIFFPrintDirectory.3tiff.html deleted file mode 100755 index f4dca6e..0000000 --- a/tiff/html/man/TIFFPrintDirectory.3tiff.html +++ /dev/null @@ -1,225 +0,0 @@ - - - - - - -TIFFPrintDirectory - - - -

    TIFFPrintDirectory

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFPrintDirectory − print a description of a -TIFF directory

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    void TIFFPrintDirectory(TIFF *tif, FILE -*fd, long flags)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFPrintDirectory prints a description of the -current directory in the specified TIFF file -to the standard I/O output stream fd. The -flags parameter is used to control the level of -detail of the printed information; it is a bit-or of the -flags defined in tiffio.h:

    - - -

    #define TIFFPRINT_NONE 0x0 /* no extra info */

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    #define

    -    		 - -

    TIFFPRINT_STRIPS

    -    		 - -

    0x1

    -    		 - -

    /* strips/tiles info */

    -
    - -

    #define

    -    		 - -

    TIFFPRINT_CURVES

    -    		 - -

    0x2

    -    		 - -

    /* color/gray response curves */

    -
    - -

    #define

    -    		 - -

    TIFFPRINT_COLORMAP

    -    		 - -

    0x4

    -    		 - -

    /* colormap */

    -
    - -

    #define

    -    		 - -

    TIFFPRINT_JPEGQTABLES

    -    		 - -

    0x100

    -    		 - -

    /* JPEG Q matrices */

    -
    - -

    #define

    -    		 - -

    TIFFPRINT_JPEGACTABLES

    -    		 - -

    0x200

    -    		 - -

    /* JPEG AC tables */

    -
    - -

    #define

    -    		 - -

    TIFFPRINT_JPEGDCTABLES

    -    		 - -

    0x200

    -    		 - -

    /* JPEG DC tables */

    -
    - -

    NOTES

    - - - - - -
    -

    In C++ the flags parameter defaults to 0.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    None.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF), TIFFOpen(3TIFF), -TIFFReadDirectory(3TIFF), -TIFFSetDirectory(3TIFF)

    -
    -
    - - diff --git a/tiff/html/man/TIFFRGBAImage.3tiff.html b/tiff/html/man/TIFFRGBAImage.3tiff.html deleted file mode 100755 index 08a9924..0000000 --- a/tiff/html/man/TIFFRGBAImage.3tiff.html +++ /dev/null @@ -1,319 +0,0 @@ - - - - - - -TIFFRGBAImage - - - -

    TIFFRGBAImage

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -ALTERNATE RASTER FORMATS
    -SIMULTANEOUS RASTER STORE AND DISPLAY
    -SUPPORTING ADDITIONAL TIFF FORMATS
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFRGBAImageOK, TIFFRGBAImageBegin, TIFFRGBAImageGet, -TIFFRGBAImageEnd − read and decode an image into a -raster

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    typedef unsigned char TIFFRGBValue; typedef struct -_TIFFRGBAImage TIFFRGBAImage;

    - -

    int TIFFRGBAImageOK(TIFF *tif, char -emsg[1024])
    -int TIFFRGBAImageBegin(TIFFRGBAImage *    img, -TIFF* tif, int stopOnError, -char emsg[1024])
    -int TIFFRGBAImageGet(TIFFRGBAImage *    img, -uint32* raster, uint32 width , -uint32 height)
    -void TIFFRGBAImageEnd(TIFFRGBAImage -*    img)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    The routines described here provide a high-level -interface through which TIFF images may be -read into memory. Images may be strip- or tile-based and -have a variety of different characteristics: bits/sample, -samples/pixel, photometric, etc. Decoding state is -encapsulated in a TIFFRGBAImage structure making it -possible to capture state for multiple images and quickly -switch between them. The target raster format can be -customized to a particular application’s needs by -installing custom routines that manipulate image data -according to application requirements.

    - -

    The default usage for these routines is: check if an -image can be processed using TIFFRGBAImageOK, -construct a decoder state block using -TIFFRGBAImageBegin, read and decode an image into a -target raster using TIFFRGBAImageGet, and then -release resources using TIFFRGBAImageEnd. -TIFFRGBAImageGet can be called multiple times to -decode an image using different state parameters. If -multiple images are to be displayed and there is not enough -space for each of the decoded rasters, multiple state blocks -can be managed and then calls can be made to -TIFFRGBAImageGet as needed to display an image.

    - -

    The generated raster is assumed to be an array of -width times height 32-bit entries, where -width must be less than or equal to the width of the -image (height may be any non-zero size). If the -raster dimensions are smaller than the image, the image data -is cropped to the raster bounds. If the raster height is -greater than that of the image, then the image data are -placed in the lower part of the raster. (Note that the -raster is assume to be organized such that the pixel at -location (x,y) is -raster[y*width+x]; with the -raster origin in the lower-left hand corner.)

    - -

    Raster pixels are 8-bit packed red, green, blue, alpha -samples. The macros TIFFGetR, TIFFGetG, -TIFFGetB, and TIFFGetA should be used to -access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255).

    - -

    TIFFRGBAImageGet converts non-8-bit images by -scaling sample values. Palette, grayscale, bilevel, -CMYK , and YCbCr images are converted to -RGB transparently. Raster pixels are returned -uncorrected by any colorimetry information present in the -directory.

    - -

    The parameter stopOnError specifies how to act if -an error is encountered while reading the image. If -stopOnError is non-zero, then an error will terminate -the operation; otherwise TIFFRGBAImageGet will -continue processing data until all the possible data in the -image have been requested.

    -
    - -

    ALTERNATE RASTER FORMATS

    - - - - - -
    -

    To use the core support for reading and processing -TIFF images, but write the resulting raster -data in a different format one need only override the -‘‘put methods’’ used to store -raster data. These methods are are defined in the -TIFFRGBAImage structure and initially setup by -TIFFRGBAImageBegin to point to routines that pack -raster data in the default ABGR pixel format. -Two different routines are used according to the physical -organization of the image data in the file: -PlanarConfiguration=1 (packed samples), and -PlanarConfiguration=2 (separated samples). Note that -this mechanism can be used to transform the data before -storing it in the raster. For example one can convert data -to colormap indices for display on a colormap display.

    -
    - -

    SIMULTANEOUS RASTER STORE AND DISPLAY

    - - - - - -
    -

    It is simple to display an image as it is being read into -memory by overriding the put methods as described above for -supporting alternate raster formats. Simply keep a reference -to the default put methods setup by -TIFFRGBAImageBegin and then invoke them before or -after each display operation. For example, the -tiffgt(1) utility uses the following put method to -update the display as the raster is being filled:

    - -
    static void
-putContigAndDraw(TIFFRGBAImage* img, uint32* raster,
-    uint32 x, uint32 y, uint32 w, uint32 h,
-    int32 fromskew, int32 toskew,
-    unsigned char* cp)
-{
-    (*putContig)(img, raster, x, y, w, h, fromskew, toskew, cp);
-    if (x+w == width) {
-     w = width;
-     if (img->orientation == ORIENTATION_TOPLEFT)
-         lrectwrite(0, y-(h-1), w-1, y, raster-x-(h-1)*w);
-     else
-         lrectwrite(0, y, w-1, y+h-1, raster);
-    }
-}
-
    - -

    (the original routine provided by the library is saved in -the variable putContig.)

    -
    - -

    SUPPORTING ADDITIONAL TIFF FORMATS

    - - - - - -
    -

    The TIFFRGBAImage routines support the most -commonly encountered flavors of TIFF. It is -possible to extend this support by overriding the -‘‘get method’’ invoked by -TIFFRGBAImageGet to read TIFF image -data. Details of doing this are a bit involved, it is best -to make a copy of an existing get method and modify it to -suit the needs of an application.

    -
    - -

    NOTES

    - - - - - -
    -

    Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -SamplesPerPixel minus ExtraSamples).

    - -

    Palette image colormaps that appear to be incorrectly -written as 8-bit values are automatically scaled to -16-bits.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    All routines return 1 if the operation was successful. -Otherwise, 0 is returned if an error was encountered and -stopOnError is zero.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Sorry, can not handle %d-bit pictures. The image -had BitsPerSample other than 1, 2, 4, 8, or 16.

    - -

    Sorry, can not handle %d-channel images. The image -had SamplesPerPixel other than 1, 3, or 4.

    - -

    Missing needed "PhotometricInterpretation" -tag. The image did not have a tag that describes how to -display the data.

    - -

    No "PhotometricInterpretation" tag, assuming -RGB. The image was missing a tag that describes how to -display it, but because it has 3 or 4 samples/pixel, it is -assumed to be RGB.

    - -

    No "PhotometricInterpretation" tag, assuming -min-is-black. The image was missing a tag that describes -how to display it, but because it has 1 sample/pixel, it is -assumed to be a grayscale or bilevel image.

    - -

    No space for photometric conversion table. There -was insufficient memory for a table used to convert image -samples to 8-bit RGB.

    - -

    Missing required "Colormap" tag. A -Palette image did not have a required Colormap -tag.

    - -

    No space for tile buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    No space for strip buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    Can not handle format. The image has a format -(combination of BitsPerSample, -SamplesPerPixel, and -PhotometricInterpretation) that can not be -handled.

    - -

    No space for B&W mapping table. There was -insufficient memory to allocate a table used to map -grayscale data to RGB.

    - -

    No space for Palette mapping table. There was -insufficient memory to allocate a table used to map data to -8-bit RGB.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFReadRGBAImage(3TIFF), -TIFFReadRGBAImageOriented(3TIFF), -TIFFReadRGBAStrip(3TIFF), -TIFFReadRGBATile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadDirectory.3tiff.html b/tiff/html/man/TIFFReadDirectory.3tiff.html deleted file mode 100755 index 82350ad..0000000 --- a/tiff/html/man/TIFFReadDirectory.3tiff.html +++ /dev/null @@ -1,218 +0,0 @@ - - - - - - -TIFFReadDirectory - - - -

    TIFFReadDirectory

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadDirectory − get the contents of the -next directory in an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFReadDirectory(TIFF -*tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the next directory in the specified file and -make it the current directory. Applications only need to -call TIFFReadDirectory to read multiple subfiles in a -single TIFF file— the first directory in a -file is automatically read when TIFFOpen is -called.

    -
    - -

    NOTES

    - - - - - -
    -

    If the library is compiled with -STRIPCHOP_SUPPORT enabled, then images that have a -single uncompressed strip or tile of data are automatically -treated as if they were made up of multiple strips or tiles -of approximately 8 kilobytes each. This operation is done -only in-memory; it does not alter the contents of the file. -However, the construction of the ‘‘chopped -strips’’ is visible to the application through -the number of strips [tiles] returned by -TIFFNumberOfStrips -[TIFFNumberOfTiles].

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    If the next directory was successfully read, 1 is -returned. Otherwise, 0 is returned if an error was -encountered, or if there are no more directories to be -read.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine. All warning messages are -directed to the TIFFWarning(3TIFF) routine.

    - -

    Seek error accessing TIFF directory. An error -occurred while positioning to the location of the -directory.

    - -

    Wrong data type %d for field "%s". -The tag entry in the directory had an incorrect data type. -For example, an ImageDescription tag with a -SHORT data type.

    - -

    TIFF directory is missing required "%s" -field. The specified tag is required to be present by -the TIFF 5.0 specification, but is missing. The -directory is (usually) unusable.

    - -

    %s: Rational with zero denominator. A -directory tag has a RATIONAL value whose -denominator is zero.

    - -

    Incorrect count %d for field "%s" (%lu, -expecting %lu); tag ignored. The specified tag’s -count field is bad. For example, a count other than 1 for a -SubFileType tag.

    - -

    Cannot handle different per-sample values for -field "%s". The tag has SamplesPerPixel -values and they are not all the same; e.g. -BitsPerSample. The library is unable to handle images -of this sort.

    - -

    Count mismatch for field "%s"; -expecting %d, got %d. The count field in a tag does not -agree with the number expected by the library. This should -never happen, so if it does, the library refuses to read the -directory.

    - -

    Invalid TIFF directory; tags are not sorted in -ascending order. The directory tags are not properly -sorted as specified in the TIFF 5.0 -specification. This error is not fatal.

    - -

    Ignoring unknown field with tag %d (0x%x). An -unknown tag was encountered in the directory; the library -ignores all such tags.

    - -

    TIFF directory is missing requred -"ImageLength" field. The image violates the -specification by not having a necessary field. There is no -way for the library to recover from this error.

    - -

    TIFF directory is missing requred -"PlanarConfig" field. The image violates the -specification by not having a necessary field. There is no -way for the library to recover from this error.

    - -

    TIFF directory is missing requred -"StripOffsets" field. The image has multiple -strips, but is missing the tag that specifies the file -offset to each strip of data. There is no way for the -library to recover from this error.

    - -

    TIFF directory is missing requred -"TileOffsets" field. The image has multiple -tiles, but is missing the tag that specifies the file offset -to each tile of data. There is no way for the library to -recover from this error.

    - -

    TIFF directory is missing required -"StripByteCounts" field. The image has -multiple strips, but is missing the tag that specifies the -size of each strip of data. There is no way for the library -to recover from this error.

    - -

    TIFF directory is missing required -"StripByteCounts" field, calculating from -imagelength. The image violates the specification by not -having a necessary field. However, when the image is -comprised of only one strip or tile, the library will -estimate the missing value based on the file size.

    - -

    Bogus "StripByteCounts" field, ignoring -and calculating from imagelength. Certain vendors -violate the specification by writing zero for the -StripByteCounts tag when they want to leave the value -unspecified. If the image has a single strip, the library -will estimate the missing value based on the file -size.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteDirectory(3TIFF), -TIFFSetDirectory(3TIFF), -TIFFSetSubDirectory(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadEncodedStrip.3tiff.html b/tiff/html/man/TIFFReadEncodedStrip.3tiff.html deleted file mode 100755 index d5c4c15..0000000 --- a/tiff/html/man/TIFFReadEncodedStrip.3tiff.html +++ /dev/null @@ -1,133 +0,0 @@ - - - - - - -TIFFReadEncodedStrip - - - -

    TIFFReadEncodedStrip

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadEncodedStrip − read and decode a strip -of data from an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFReadEncodedStrip(TIFF -*tif, tstrip_t strip, -tdata_t buf, tsize_t -size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the specified strip of data and place up to -size bytes of decompressed information in the (user -supplied) data buffer.

    -
    - -

    NOTES

    - - - - - -
    -

    The value of strip is a ‘‘raw -strip number.’’ That is, the caller must take -into account whether or not the data are organized in -separate planes (PlanarConfiguration=2). To read a -full strip of data the data buffer should typically be at -least as large as the number returned by -TIFFStripSize(3TIFF). If the -1 passed in size -parameter, the whole strip will be read. You should be sure -you have enough space allocated for the buffer.

    - -

    The library attempts to hide bit- and byte-ordering -differences between the image and the native machine by -converting data to the native machine order. Bit reversal is -done if the FillOrder tag is opposite to the native -machine bit order. 16- and 32-bit samples are automatically -byte-swapped if the file was written with a byte order -opposite to the native machine byte order,

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    The actual number of bytes of data that were placed -in buf is returned; TIFFReadEncodedStrip -returns −1 if an error was encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFReadRawStrip(3TIFF), -TIFFReadScanline(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadEncodedTile.3tiff.html b/tiff/html/man/TIFFReadEncodedTile.3tiff.html deleted file mode 100755 index b42dc09..0000000 --- a/tiff/html/man/TIFFReadEncodedTile.3tiff.html +++ /dev/null @@ -1,130 +0,0 @@ - - - - - - -TIFFReadEncodedTile - - - -

    TIFFReadEncodedTile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadEncodedTile − read and decode a tile of -data from an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFReadEncodedTile(TIFF *tif, -ttile_t tile, tdata_t buf, -tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the specified tile of data and place up to -size bytes of decompressed information in the (user -supplied) data buffer.

    -
    - -

    NOTES

    - - - - - -
    -

    The value of tile is a ‘‘raw tile -number.’’ That is, the caller must take into -account whether or not the data are organized in separate -planes (PlanarConfiguration=2). -TIFFComputeTile automatically does this when -converting an (x,y,z,sample) coordinate quadruple to a tile -number. To read a full tile of data the data buffer should -be at least as large as the value returned by -TIFFTileSize.

    - -

    The library attempts to hide bit- and byte-ordering -differences between the image and the native machine by -converting data to the native machine order. Bit reversal is -done if the FillOrder tag is opposite to the native -machine bit order. 16- and 32-bit samples are automatically -byte-swapped if the file was written with a byte order -opposite to the native machine byte order,

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    The actual number of bytes of data that were placed in -buf is returned; TIFFReadEncodedTile returns -−1 if an error was encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFReadRawTile(3TIFF), -TIFFReadTile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadRGBAImage.3tiff.html b/tiff/html/man/TIFFReadRGBAImage.3tiff.html deleted file mode 100755 index 1ebb09b..0000000 --- a/tiff/html/man/TIFFReadRGBAImage.3tiff.html +++ /dev/null @@ -1,301 +0,0 @@ - - - - - - -TIFFReadRGBAImage - - - -

    TIFFReadRGBAImage

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadRGBAImage, TIFFReadRGBAImageOriented − read -and decode an image into a fixed-format raster

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    #define TIFFGetR(abgr) ((abgr) & 0xff)
    -#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)
    -#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)
    -#define TIFFGetA(abgr) (((abgr) >> 24) & -0xff)

    - -

    int TIFFReadRGBAImage(TIFF *tif, -uint32 width, uint32 height, -uint32 *raster, int -stopOnError)
    -int TIFFReadRGBAImageOriented(TIFF *    tif, -uint32 width, uint32 height, -uint32 *raster, int orientation, -int stopOnError)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFReadRGBAImage reads a strip- or tile-based -image into memory, storing the result in the user supplied -raster. The raster is assumed to be an array of -width times height 32-bit entries, where -width must be less than or equal to the width of the -image (height may be any non-zero size). If the -raster dimensions are smaller than the image, the image data -is cropped to the raster bounds. If the raster height is -greater than that of the image, then the image data are -placed in the lower part of the raster. (Note that the -raster is assume to be organized such that the pixel at -location (x,y) is -raster[y*width+x]; with the -raster origin in the lower-left hand corner.)

    - -

    TIFFReadRGBAImageOriented works like -TIFFReadRGBAImage with except of that user can -specify the raster origin position with the -orientation parameter. Four orientations -supported:

    -
    - - - - - -
    -

    ORIENTATION_TOPLEFT

    - - - - - -
    -

    origin in top-left corner,

    -
    - - - - - -
    -

    ORIENTATION_TOPRIGHT

    - - - - - -
    -

    origin in top-right corner,

    -
    - - - - - -
    -

    ORIENTATION_BOTLEFT

    - - - - - -
    -

    origin in bottom-left corner and

    -
    - - - - - -
    -

    ORIENTATION_BOTRIGHT

    - - - - - -
    -

    origin in bottom-right corner.

    -
    - - - - - -
    -

    If you choose ORIENTATION_BOTLEFT result will be -the same as returned by the TIFFReadRGBAImage.

    - -

    Raster pixels are 8-bit packed red, green, blue, alpha -samples. The macros TIFFGetR, TIFFGetG, -TIFFGetB, and TIFFGetA should be used to -access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255).

    - -

    TIFFReadRGBAImage converts non-8-bit images by -scaling sample values. Palette, grayscale, bilevel, -CMYK , and YCbCr images are converted to -RGB transparently. Raster pixels are returned -uncorrected by any colorimetry information present in the -directory.

    - -

    The paramater stopOnError specifies how to act if -an error is encountered while reading the image. If -stopOnError is non-zero, then an error will terminate -the operation; otherwise TIFFReadRGBAImage will -continue processing data until all the possible data in the -image have been requested.

    -
    - -

    NOTES

    - - - - - -
    -

    In C++ the stopOnError parameter defaults to -0.

    - -

    Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -SamplesPerPixel minus ExtraSamples).

    - -

    Palettte image colormaps that appear to be incorrectly -written as 8-bit values are automatically scaled to -16-bits.

    - -

    TIFFReadRGBAImage is just a wrapper around the -more general TIFFRGBAImage(3TIFF) facilities.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    1 is returned if the image was successfully read and -converted. Otherwise, 0 is returned if an error was -encountered and stopOnError is zero.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Sorry, can not handle %d-bit pictures. The image -had BitsPerSample other than 1, 2, 4, 8, or 16.

    - -

    Sorry, can not handle %d-channel images. The image -had SamplesPerPixel other than 1, 3, or 4.

    - -

    Missing needed "PhotometricInterpretation" -tag. The image did not have a tag that describes how to -display the data.

    - -

    No "PhotometricInterpretation" tag, assuming -RGB. The image was missing a tag that describes how to -display it, but because it has 3 or 4 samples/pixel, it is -assumed to be RGB.

    - -

    No "PhotometricInterpretation" tag, assuming -min-is-black. The image was missing a tag that describes -how to display it, but because it has 1 sample/pixel, it is -assumed to be a grayscale or bilevel image.

    - -

    No space for photometric conversion table. There -was insufficient memory for a table used to convert image -samples to 8-bit RGB.

    - -

    Missing required "Colormap" tag. A -Palette image did not have a required Colormap -tag.

    - -

    No space for tile buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    No space for strip buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    Can not handle format. The image has a format -(combination of BitsPerSample, -SamplesPerPixel, and -PhotometricInterpretation) that -TIFFReadRGBAImage can not handle.

    - -

    No space for B&W mapping table. There was -insufficient memory to allocate a table used to map -grayscale data to RGB.

    - -

    No space for Palette mapping table. There was -insufficient memory to allocate a table used to map data to -8-bit RGB.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFRGBAImage(3TIFF), -TIFFReadRGBAStrip(3TIFF), -TIFFReadRGBATile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadRGBAStrip.3tiff.html b/tiff/html/man/TIFFReadRGBAStrip.3tiff.html deleted file mode 100755 index 37d36d3..0000000 --- a/tiff/html/man/TIFFReadRGBAStrip.3tiff.html +++ /dev/null @@ -1,208 +0,0 @@ - - - - - - -TIFFReadRGBAStrip - - - -

    TIFFReadRGBAStrip

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadRGBAStrip − read and decode an image strip -into a fixed-format raster

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    #define TIFFGetR(abgr) ((abgr) & 0xff)
    -#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)
    -#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)
    -#define TIFFGetA(abgr) (((abgr) >> 24) & -0xff)

    - -

    int TIFFReadRGBAStrip(TIFF *tif, -uint32 row, uint32 -*raster)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFReadRGBAStrip reads a single strip of a -strip-based image into memory, storing the result in the -user supplied RGBA raster. The raster is assumed to -be an array of width times rowsperstrip 32-bit entries, -where width is the width of the image (TIFFTAG_IMAGEWIDTH) -and rowsperstrip is the maximum lines in a strip -(TIFFTAG_ROWSPERSTRIP).

    - -

    The row value should be the row of the first row -in the strip (strip * rowsperstrip, zero based).

    - -

    Note that the raster is assume to be organized such that -the pixel at location (x,y) is -raster[y*width+x]; with the -raster origin in the lower-left hand corner of the -strip. That is bottom to top organization. When reading a -partial last strip in the file the last line of the image -will begin at the beginning of the buffer.

    - -

    Raster pixels are 8-bit packed red, green, blue, alpha -samples. The macros TIFFGetR, TIFFGetG, -TIFFGetB, and TIFFGetA should be used to -access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255).

    - -

    See the TIFFRGBAImage(3TIFF) page for more details -on how various image types are converted to RGBA values.

    -
    - -

    NOTES

    - - - - - -
    -

    Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -SamplesPerPixel minus ExtraSamples).

    - -

    Palette image colormaps that appear to be incorrectly -written as 8-bit values are automatically scaled to -16-bits.

    - -

    TIFFReadRGBAStrip is just a wrapper around the -more general TIFFRGBAImage(3TIFF) facilities. -It’s main advantage over the similar -TIFFReadRGBAImage() function is that for large images -a single buffer capable of holding the whole image -doesn’t need to be allocated, only enough for one -strip. The TIFFReadRGBATile() function does a similar -operation for tiled images.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    1 is returned if the image was successfully read and -converted. Otherwise, 0 is returned if an error was -encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Sorry, can not handle %d-bit pictures. The image -had BitsPerSample other than 1, 2, 4, 8, or 16.

    - -

    Sorry, can not handle %d-channel images. The image -had SamplesPerPixel other than 1, 3, or 4.

    - -

    Missing needed "PhotometricInterpretation" -tag. The image did not have a tag that describes how to -display the data.

    - -

    No "PhotometricInterpretation" tag, assuming -RGB. The image was missing a tag that describes how to -display it, but because it has 3 or 4 samples/pixel, it is -assumed to be RGB.

    - -

    No "PhotometricInterpretation" tag, assuming -min-is-black. The image was missing a tag that describes -how to display it, but because it has 1 sample/pixel, it is -assumed to be a grayscale or bilevel image.

    - -

    No space for photometric conversion table. There -was insufficient memory for a table used to convert image -samples to 8-bit RGB.

    - -

    Missing required "Colormap" tag. A -Palette image did not have a required Colormap -tag.

    - -

    No space for tile buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    No space for strip buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    Can not handle format. The image has a format -(combination of BitsPerSample, -SamplesPerPixel, and -PhotometricInterpretation) that -TIFFReadRGBAImage can not handle.

    - -

    No space for B&W mapping table. There was -insufficient memory to allocate a table used to map -grayscale data to RGB.

    - -

    No space for Palette mapping table. There was -insufficient memory to allocate a table used to map data to -8-bit RGB.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFRGBAImage(3TIFF), -TIFFReadRGBAImage(3TIFF), -TIFFReadRGBATile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadRGBATile.3tiff.html b/tiff/html/man/TIFFReadRGBATile.3tiff.html deleted file mode 100755 index 6bd298a..0000000 --- a/tiff/html/man/TIFFReadRGBATile.3tiff.html +++ /dev/null @@ -1,261 +0,0 @@ - - - - - - -TIFFReadRGBATile - - - -

    TIFFReadRGBATile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadRGBATile − read and decode an image tile -into a fixed-format raster

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    #define TIFFGetR(abgr)

    -    		 - -

    ((abgr) & 0xff)

    -
    - -

    #define TIFFGetG(abgr)

    -    		 - -

    (((abgr) >> 8) & 0xff)

    -
    - -

    #define TIFFGetB(abgr)

    -    		 - -

    (((abgr) >> 16) & 0xff)

    -
    - -

    #define TIFFGetA(abgr)

    -    		 - -

    (((abgr) >> 24) & 0xff)

    -
    - - - - - -
    -

    int TIFFReadRGBATile(TIFF *tif, -uint32 x, uint32 y, uint32 -*raster)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFReadRGBATile reads a single tile of a -tile-based image into memory, storing the result in the user -supplied RGBA raster. The raster is assumed to be an -array of width times length 32-bit entries, where width is -the width of a tile (TIFFTAG_TILEWIDTH) and length is the -height of a tile (TIFFTAG_TILELENGTH).

    - -

    The x and y values are the offsets from the -top left corner to the top left corner of the tile to be -read. They must be an exact multiple of the tile width and -length.

    - -

    Note that the raster is assume to be organized such that -the pixel at location (x,y) is -raster[y*width+x]; with the -raster origin in the lower-left hand corner of the -tile. That is bottom to top organization. Edge tiles which -partly fall off the image will be filled out with -appropriate zeroed areas.

    - -

    Raster pixels are 8-bit packed red, green, blue, alpha -samples. The macros TIFFGetR, TIFFGetG, -TIFFGetB, and TIFFGetA should be used to -access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255).

    - -

    See the TIFFRGBAImage(3TIFF) page for more details -on how various image types are converted to RGBA values.

    -
    - -

    NOTES

    - - - - - -
    -

    Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -SamplesPerPixel minus ExtraSamples).

    - -

    Palette image colormaps that appear to be incorrectly -written as 8-bit values are automatically scaled to -16-bits.

    - -

    TIFFReadRGBATile is just a wrapper around the more -general TIFFRGBAImage(3TIFF) facilities. It’s -main advantage over the similar TIFFReadRGBAImage() -function is that for large images a single buffer capable of -holding the whole image doesn’t need to be allocated, -only enough for one tile. The TIFFReadRGBAStrip() -function does a similar operation for stripped images.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    1 is returned if the image was successfully read and -converted. Otherwise, 0 is returned if an error was -encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Sorry, can not handle %d-bit pictures. The image -had BitsPerSample other than 1, 2, 4, 8, or 16.

    - -

    Sorry, can not handle %d-channel images. The image -had SamplesPerPixel other than 1, 3, or 4.

    - -

    Missing needed "PhotometricInterpretation" -tag. The image did not have a tag that describes how to -display the data.

    - -

    No "PhotometricInterpretation" tag, assuming -RGB. The image was missing a tag that describes how to -display it, but because it has 3 or 4 samples/pixel, it is -assumed to be RGB.

    - -

    No "PhotometricInterpretation" tag, assuming -min-is-black. The image was missing a tag that describes -how to display it, but because it has 1 sample/pixel, it is -assumed to be a grayscale or bilevel image.

    - -

    No space for photometric conversion table. There -was insufficient memory for a table used to convert image -samples to 8-bit RGB.

    - -

    Missing required "Colormap" tag. A -Palette image did not have a required Colormap -tag.

    - -

    No space for tile buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    No space for strip buffer. There was insufficient -memory to allocate an i/o buffer.

    - -

    Can not handle format. The image has a format -(combination of BitsPerSample, -SamplesPerPixel, and -PhotometricInterpretation) that -TIFFReadRGBAImage can not handle.

    - -

    No space for B&W mapping table. There was -insufficient memory to allocate a table used to map -grayscale data to RGB.

    - -

    No space for Palette mapping table. There was -insufficient memory to allocate a table used to map data to -8-bit RGB.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFRGBAImage(3TIFF), -TIFFReadRGBAImage(3TIFF), -TIFFReadRGBAStrip(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadRawStrip.3tiff.html b/tiff/html/man/TIFFReadRawStrip.3tiff.html deleted file mode 100755 index 4dd1fbc..0000000 --- a/tiff/html/man/TIFFReadRawStrip.3tiff.html +++ /dev/null @@ -1,109 +0,0 @@ - - - - - - -TIFFReadRawStrip - - - -

    TIFFReadRawStrip

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadRawStrip − return the undecoded contents of -a strip of data from an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFReadRawStrip(TIFF *tif, -tstrip_t strip, tdata_t buf, -tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the contents of the specified strip into the (user -supplied) data buffer. Note that the value of strip -is a ‘‘raw strip number.’’ That is, -the caller must take into account whether or not the data is -organized in separate planes (PlanarConfiguration=2). -To read a full strip of data the data buffer should -typically be at least as large as the number returned by -TIFFStripSize.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    The actual number of bytes of data that were placed in -buf is returned; TIFFReadEncodedStrip returns -−1 if an error was encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFReadEncodedStrip(3TIFF), -TIFFReadScanline(3TIFF), TIFFStripSize(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadRawTile.3tiff.html b/tiff/html/man/TIFFReadRawTile.3tiff.html deleted file mode 100755 index e74295b..0000000 --- a/tiff/html/man/TIFFReadRawTile.3tiff.html +++ /dev/null @@ -1,111 +0,0 @@ - - - - - - -TIFFReadRawTile - - - -

    TIFFReadRawTile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadRawTile − return an undecoded tile of data -from an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFReadRawTile(TIFF *tif, -ttile_t tile, tdata_t buf, -tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the contents of the specified tile into the (user -supplied) data buffer. Note that the value of tile is -a ‘‘raw tile number.’’ That is, the -caller must take into account whether or not the data is -organized in separate planes (PlanarConfiguration=2). -TIFFComputeTile automatically does this when -converting an (x,y,z,sample) coordinate quadruple to a tile -number. To read a full tile of data the data buffer should -typically be at least as large as the value returned by -TIFFTileSize.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    The actual number of bytes of data that were placed in -buf is returned; TIFFReadEncodedTile returns -−1 if an error was encountered.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFReadEncodedTile(3TIFF), -TIFFReadTile(3TIFF), TIFFTileSize(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadScanline.3tiff.html b/tiff/html/man/TIFFReadScanline.3tiff.html deleted file mode 100755 index e825e4c..0000000 --- a/tiff/html/man/TIFFReadScanline.3tiff.html +++ /dev/null @@ -1,157 +0,0 @@ - - - - - - -TIFFReadScanline - - - -

    TIFFReadScanline

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadScanline − read and decode a scanline of -data from an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFReadScanline(TIFF *tif, -tdata_t buf, uint32 row, -tsample_t sample)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Read the data for the specified row into the (user -supplied) data buffer buf. The data are returned -decompressed and, in the native byte- and bit-ordering, but -are otherwise packed (see further below). The buffer must be -large enough to hold an entire scanline of data. -Applications should call the routine TIFFScanlineSize -to find out the size (in bytes) of a scanline buffer. The -row parameter is always used by -TIFFReadScanline; the sample parameter is used -only if data are organized in separate planes -(PlanarConfiguration=2).

    -
    - -

    NOTES

    - - - - - -
    -

    The library attempts to hide bit- and byte-ordering -differences between the image and the native machine by -converting data to the native machine order. Bit reversal is -done if the FillOrder tag is opposite to the native -machine bit order. 16- and 32-bit samples are automatically -byte-swapped if the file was written with a byte order -opposite to the native machine byte order,

    - -

    In C++ the sample parameter defaults to 0.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFReadScanline returns −1 if it detects an -error; otherwise 1 is returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Compression algorithm does not support random -access. Data was requested in a non-sequential order -from a file that uses a compression algorithm and that has -RowsPerStrip greater than one. That is, data in the -image is stored in a compressed form, and with multiple rows -packed into a strip. In this case, the library does not -support random access to the data. The data should either be -accessed sequentially, or the file should be converted so -that each strip is made up of one row of data.

    -
    - -

    BUGS

    - - - - - -
    -

    Reading subsampled YCbCR data does not work correctly -because, for PlanarConfiguration=2 the size of a -scanline is not calculated on a per-sample basis, and for -PlanarConfiguration=1 the library does not unpack the -block-interleaved samples; use the strip- and tile-based -interfaces to read these formats.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFReadEncodedStrip(3TIFF), -TIFFReadRawStrip(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFReadTile.3tiff.html b/tiff/html/man/TIFFReadTile.3tiff.html deleted file mode 100755 index be245f8..0000000 --- a/tiff/html/man/TIFFReadTile.3tiff.html +++ /dev/null @@ -1,133 +0,0 @@ - - - - - - -TIFFReadTile - - - -

    TIFFReadTile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadTile − read and decode a tile of data from -an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFReadTile(TIFF *tif, -tdata_t buf, uint32 x, -uint32 y, uint32 z, -tsample_t sample)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Return the data for the tile containing the -specified coordinates. The data placed in buf are -returned decompressed and, typically, in the native byte- -and bit-ordering, but are otherwise packed (see further -below). The buffer must be large enough to hold an entire -tile of data. Applications should call the routine -TIFFTileSize to find out the size (in bytes) of a -tile buffer. The x and y parameters are always -used by TIFFReadTile. The z parameter is used -if the image is deeper than 1 slice -(ImageDepth>1). The sample parameter is -used only if data are organized in separate planes -(PlanarConfiguration=2).

    -
    - -

    NOTES

    - - - - - -
    -

    The library attempts to hide bit- and byte-ordering -differences between the image and the native machine by -converting data to the native machine order. Bit reversal is -done if the FillOrder tag is opposite to the native -machine bit order. 16- and 32-bit samples are automatically -byte-swapped if the file was written with a byte order -opposite to the native machine byte order,

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFReadTile returns −1 if it detects an -error; otherwise the number of bytes in the decoded tile is -returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFCheckTile(3TIFF), -TIFFComputeTile(3TIFF), TIFFOpen(3TIFF), -TIFFReadEncodedTile(3TIFF), -TIFFReadRawTile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFSetDirectory.3tiff.html b/tiff/html/man/TIFFSetDirectory.3tiff.html deleted file mode 100755 index 9047b0b..0000000 --- a/tiff/html/man/TIFFSetDirectory.3tiff.html +++ /dev/null @@ -1,122 +0,0 @@ - - - - - - -TIFFSetDirectory - - - -

    TIFFSetDirectory

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFSetDirectory, TIFFSetSubDirectory − set the -current directory for an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFSetDirectory(TIFF *tif, -tdir_t dirnum)
    -int TIFFSetSubDirectory(TIFF *    tif, uint32 -diroff)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFSetDirectory changes the current directory and -reads its contents with TIFFReadDirectory. The -parameter dirnum specifies the subfile/directory as -an integer number, with the first directory numbered -zero.

    - -

    TIFFSetSubDirectory acts like -TIFFSetDirectory, except the directory is specified -as a file offset instead of an index; this is required for -accessing subdirectories linked through a SubIFD -tag.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    On successful return 1 is returned. Otherwise, 0 is -returned if dirnum or diroff specifies a -non-existent directory, or if an error was encountered while -reading the directory’s contents.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: Error fetching directory count. An error was -encountered while reading the ‘‘directory -count’’ field.

    - -

    %s: Error fetching directory link. An error was -encountered while reading the ‘‘link -value’’ that points to the next directory in a -file.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFCurrentDirectory(3TIFF), -TIFFOpen(3TIFF), TIFFReadDirectory(3TIFF), -TIFFWriteDirectory(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFSetField.3tiff.html b/tiff/html/man/TIFFSetField.3tiff.html deleted file mode 100755 index f160fed..0000000 --- a/tiff/html/man/TIFFSetField.3tiff.html +++ /dev/null @@ -1,1865 +0,0 @@ - - - - - - - - - -TIFFSetField - - - - -

    TIFFSetField

    - -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - - -

    NAME - -

    - - -

    TIFFSetField, -TIFFVSetField − set the value(s) of a tag in a -TIFF file open for writing

    - -

    SYNOPSIS - -

    - - -

    #include -<tiffio.h>

    - -

    int -TIFFSetField(TIFF *tif, ttag_t -tag, ...)

    - -

    #include -<stdarg.h>

    - -

    int -TIFFVSetField(TIFF *tif, ttag_t -tag, va_list ap)

    - -

    DESCRIPTION - -

    - - - -

    TIFFSetField -sets the value of a field or pseudo-tag in the current -directory associated with the open TIFF file -tif. (A pseudo-tag is a parameter that is used -to control the operation of the TIFF library -but whose value is not read or written to the underlying -file.) To set the value of a field the file must have been -previously opened for writing with TIFFOpen(3TIFF); -pseudo-tags can be set whether the file was opened for -reading or writing. The field is identified by tag, -one of the values defined in the include file tiff.h -(see also the table below). The actual value is specified -using a variable argument list, as prescribed by the -stdarg(3) interface (or, on some machines, the -varargs(3) interface.)

    - - -

    TIFFVSetField -is functionally equivalent to TIFFSetField except -that it takes a pointer to a variable argument list. -TIFFVSetField is useful for writing routines that are -layered on top of the functionality provided by -TIFFSetField.

    - -

    The tags -understood by libtiff, the number of parameter -values, and the expected types for the parameter values are -shown below. The data types are: char* is -null-terminated string and corresponds to the -ASCII data type; uint16 is an unsigned -16-bit value; uint32 is an unsigned 32-bit value; -uint16* is an array of unsigned 16-bit values. -void* is an array of data values of unspecified -type.

    - -

    Consult the -TIFF specification for information on the -meaning of each tag.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - - -

    Tag Name

    		 - - -

    Count

    		 -
    - - -

    Types

    		 - - -

    Notes

    - - -

    TIFFTAG_ARTIST

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_BADFAXLINES

    		 - - -

    1

    		 -
    - - -

    uint32

    		 -
    - - -

    TIFFTAG_BITSPERSAMPLE

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_CLEANFAXDATA

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_COLORMAP

    		 - - -

    3

    		 -
    - - -

    uint16*

    		 - - -

    1<<BitsPerSample arrays

    - - -

    TIFFTAG_COMPRESSION

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_CONSECUTIVEBADFAXLINES

    		 - - -

    1

    		 -
    - - -

    uint32

    		 -
    - - -

    TIFFTAG_COPYRIGHT

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_DATETIME

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_DOCUMENTNAME

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_DOTRANGE

    		 - - -

    2

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_EXTRASAMPLES

    		 - - -

    2

    		 -
    - - -

    uint16,uint16*

    		 - - -

    † count & types array

    - - -

    TIFFTAG_FAXFILLFUNC

    		 - - -

    1

    		 -
    - - -

    TIFFFaxFillFunc

    		 - - -

    G3/G4 compression pseudo-tag

    - - -

    TIFFTAG_FAXMODE

    		 - - -

    1

    		 -
    - - -

    int

    		 - - -

    † G3/G4 compression pseudo-tag

    - - -

    TIFFTAG_FILLORDER

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_GROUP3OPTIONS

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    †

    - - -

    TIFFTAG_GROUP4OPTIONS

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    †

    - - -

    TIFFTAG_HALFTONEHINTS

    		 - - -

    2

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_HOSTCOMPUTER

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_ICCPROFILE

    		 - - -

    2

    		 -
    - - -

    uint32,void*

    		 - - -

    count, profile data

    - - -

    TIFFTAG_IMAGEDEPTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    †

    - - -

    TIFFTAG_IMAGEDESCRIPTION

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_IMAGELENGTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 -
    - - -

    TIFFTAG_IMAGEWIDTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    †

    - - -

    TIFFTAG_INKNAMES

    		 - - -

    2

    		 -
    - - -

    uint16, char*

    		 -
    - - -

    TIFFTAG_INKSET

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_JPEGCOLORMODE

    		 - - -

    1

    		 -
    - - -

    int

    		 - - -

    † JPEG pseudo-tag

    - - -

    TIFFTAG_JPEGQUALITY

    		 - - -

    1

    		 -
    - - -

    int

    		 - - -

    JPEG pseudo-tag

    - - -

    TIFFTAG_JPEGTABLES

    		 - - -

    2

    		 -
    - - -

    uint32*,void*

    		 - - -

    † count & tables

    - - -

    TIFFTAG_JPEGTABLESMODE

    		 - - -

    1

    		 -
    - - -

    int

    		 - - -

    † JPEG pseudo-tag

    - - -

    TIFFTAG_MAKE

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_MATTEING

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_MAXSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_MINSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_MODEL

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_ORIENTATION

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_PAGENAME

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_PAGENUMBER

    		 - - -

    2

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_PHOTOMETRIC

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_PHOTOSHOP

    		 - - -

    ?

    		 -
    - - -

    uint32,void*

    		 - - -

    count, data

    - - -

    TIFFTAG_PLANARCONFIG

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_PREDICTOR

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_PRIMARYCHROMATICITIES

    		 - - -

    1

    		 -
    - - -

    float*

    		 - - -

    6-entry array

    - - -

    TIFFTAG_REFERENCEBLACKWHITE

    		 - - -

    1

    		 -
    - - -

    float*

    		 - - -

    † 6-entry array

    - - -

    TIFFTAG_RESOLUTIONUNIT

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_RICHTIFFIPTC

    		 - - -

    2

    		 -
    - - -

    uint32,void*

    		 - - -

    count, data

    - - -

    TIFFTAG_ROWSPERSTRIP

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    † must be > 0

    - - -

    TIFFTAG_SAMPLEFORMAT

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_SAMPLESPERPIXEL

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    † value must be <= 4

    - - -

    TIFFTAG_SMAXSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    double

    		 -
    - - -

    TIFFTAG_SMINSAMPLEVALUE

    		 - - -

    1

    		 -
    - - -

    double

    		 -
    - - -

    TIFFTAG_SOFTWARE

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_STONITS

    		 - - -

    1

    		 -
    - - -

    double

    		 - - -

    †

    - - -

    TIFFTAG_SUBFILETYPE

    		 - - -

    1

    		 -
    - - -

    uint32

    		 -
    - - -

    TIFFTAG_SUBIFD

    		 - - -

    2

    		 -
    - - -

    uint16,uint32*

    		 - - -

    count & offsets array

    - - -

    TIFFTAG_TARGETPRINTER

    		 - - -

    1

    		 -
    - - -

    char*

    		 -
    - - -

    TIFFTAG_THRESHHOLDING

    		 - - -

    1

    		 -
    - - -

    uint16

    		 -
    - - -

    TIFFTAG_TILEDEPTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    †

    - - -

    TIFFTAG_TILELENGTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    † must be a multiple of 8

    - - -

    TIFFTAG_TILEWIDTH

    		 - - -

    1

    		 -
    - - -

    uint32

    		 - - -

    † must be a multiple of 8

    - - -

    TIFFTAG_TRANSFERFUNCTION

    		 - - -

    1 or 3‡ uint16*

    		 - - -

    1<<BitsPerSample entry arrays

    - - -

    TIFFTAG_WHITEPOINT

    		 - - -

    1

    		 -
    - - -

    float*

    		 - - -

    2-entry array

    - - -

    TIFFTAG_XMLPACKET

    		 - - -

    2

    		 -
    - - -

    uint32,void*

    		 - - -

    count, data

    - - -

    TIFFTAG_XPOSITION

    		 - - -

    1

    		 -
    - - -

    float

    		 -
    - - -

    TIFFTAG_XRESOLUTION

    		 - - -

    1

    		 -
    - - -

    float

    		 -
    - - -

    TIFFTAG_YCBCRCOEFFICIENTS

    		 - - -

    1

    		 -
    - - -

    float*

    		 - - -

    † 3-entry array

    - - -

    TIFFTAG_YCBCRPOSITIONING

    		 - - -

    1

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_YCBCRSAMPLING

    		 - - -

    2

    		 -
    - - -

    uint16

    		 - - -

    †

    - - -

    TIFFTAG_YPOSITION

    		 - - -

    1

    		 -
    - - -

    float

    		 -
    - - -

    TIFFTAG_YRESOLUTION

    		 - - -

    1

    		 -
    - - -

    float

    		 -
    - -

    † Tag may not have its -values changed once data is written.
    -‡ If SamplesPerPixel is one, then a single -array is passed; otherwise three arrays should be passed. -
    -* The contents of this field are quite complex. See The -ICC Profile Format Specification, Annex B.3 -"Embedding ICC Profiles in TIFF Files" (available -at http://www.color.org) for an explanation.

    - -

    RETURN VALUES - -

    - - -

    1 is returned -if the operation was successful. Otherwise, 0 is returned if -an error was detected.

    - -

    DIAGNOSTICS - -

    - - -

    All error -messages are directed to the TIFFError(3TIFF) -routine.

    - -

    %s: Cannot -modify tag "%s" while writing. Data has -already been written to the file, so the specified -tag’s value can not be changed. This restriction is -applied to all tags that affect the format of written -data.

    - -

    %d: Bad -value for "%s". An invalid value was supplied -for the named tag.

    - -

    SEE ALSO - -

    - - - -

    TIFFOpen(3TIFF), -TIFFGetField(3TIFF), TIFFSetDirectory(3TIFF), -TIFFWriteDirectory(3TIFF), -TIFFReadDirectory(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library -home page: http://www.remotesensing.org/libtiff/

    -
    - - diff --git a/tiff/html/man/TIFFWarning.3tiff.html b/tiff/html/man/TIFFWarning.3tiff.html deleted file mode 100755 index 18f2e8b..0000000 --- a/tiff/html/man/TIFFWarning.3tiff.html +++ /dev/null @@ -1,108 +0,0 @@ - - - - - - -TIFFWarning - - - -

    TIFFWarning

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWarning, TIFFSetWarningHandler − library -warning interface

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    void TIFFWarning(const char *module, -const char *fmt, ...)

    - -

    #include <stdarg.h>

    - -

    typedef void (*TIFFWarningHandler)(const char -*module, const char *fmt, -va_list ap);

    - -

    TIFFWarningHandler -TIFFSetWarningHandler(TIFFWarningHandler -handler);

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFWarning invokes the library-wide warning -handler function to (normally) write a warning message to -the stderr. The fmt parameter is a -printf(3S) format string, and any number arguments -can be supplied. The module parameter is interpreted -as a string that, if non-zero, should be printed before the -message; it typically is used to identify the software -module in which a warning is detected.

    - -

    Applications that desire to capture control in the event -of a warning should use TIFFSetWarningHandler to -override the default warning handler. A NULL -(0) warning handler function may be installed to suppress -error messages.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFSetWarningHandler returns a reference to the -previous error handling function.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFError(3TIFF), libtiff(3TIFF), -printf(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteDirectory.3tiff.html b/tiff/html/man/TIFFWriteDirectory.3tiff.html deleted file mode 100755 index 1e72a5b..0000000 --- a/tiff/html/man/TIFFWriteDirectory.3tiff.html +++ /dev/null @@ -1,176 +0,0 @@ - - - - - - -TIFFWriteDirectory - - - -

    TIFFWriteDirectory

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWriteDirectory, TIFFRewriteDirectory, -TIFFCheckpointDirectory − write the current directory -in an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFWriteDirectory(TIFF *tif)
    -int TIFFRewriteDirectory(TIFF *    tif)
    -int TIFFCheckpointDirectory(TIFF *    tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFWriteDirectory will write the contents of the -current directory to the file and setup to create a new -subfile in the same file. Applications only need to call -TIFFWriteDirectory when writing multiple subfiles to -a single TIFF file. TIFFWriteDirectory -is automatically called by TIFFClose and -TIFFFlush to write a modified directory if the file -is open for writing.

    - -

    The TIFFRewriteDirectory function operates -similarly to TIFFWriteDirectory, but can be called -with directories previously read or written that already -have an established location in the file. It will rewrite -the directory, but instead of place it at it’s old -location (as TIFFWriteDirectory would) it will place -them at the end of the file, correcting the pointer from the -preceeding directory or file header to point to it’s -new location. This is particularly important in cases where -the size of the directory and pointed to data has grown, so -it won’t fit in the space available at the old -location.

    - -

    The TIFFCheckpointDirectory writes the current -state of the tiff directory into the file to make what is -currently in the file readable. Unlike -TIFFWriteDirectory, TIFFCheckpointDirectory does not -free up the directory data structures in memory, so they can -be updated (as strips/tiles are written) and written again. -Reading such a partial file you will at worst get a tiff -read error for the first strip/tile encountered that is -incomplete, but you will at least get all the valid data in -the file before that. When the file is complete, just use -TIFFWriteDirectory as usual to finish it off -cleanly.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    1 is returned when the contents are successfully written -to the file. Otherwise, 0 is returned if an error was -encountered when writing the directory contents.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    Error post-encoding before directory write. Before -writing the contents of the current directory, any pending -data are flushed. This message indicates that an error -occurred while doing this.

    - -

    Error flushing data before directory write. Before -writing the contents of the current directory, any pending -data are flushed. This message indicates that an error -occurred while doing this.

    - -

    Cannot write directory, out of space. There was -not enough space to allocate a temporary area for the -directory that was to be written.

    - -

    Error writing directory count. A write error -occurred when writing the count of fields in the -directory.

    - -

    Error writing directory contents. A write error -occurred when writing the directory fields.

    - -

    Error writing directory link. A write error -occurred when writing the link to the next directory.

    - -

    Error writing data for field "%s". A -write error occurred when writing indirect data for the -specified field.

    - -

    Error writing TIFF header. A write error occurred -when re-writing header at the front of the file.

    - -

    Error fetching directory count. A read error -occurred when fetching the directory count field for a -previous directory. This can occur when setting up a link to -the directory that is being written.

    - -

    Error fetching directory link. A read error -occurred when fetching the directory link field for a -previous directory. This can occur when setting up a link to -the directory that is being written.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFError(3TIFF), -TIFFReadDirectory(3TIFF), -TIFFSetDirectory(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteEncodedStrip.3tiff.html b/tiff/html/man/TIFFWriteEncodedStrip.3tiff.html deleted file mode 100755 index 3b90199..0000000 --- a/tiff/html/man/TIFFWriteEncodedStrip.3tiff.html +++ /dev/null @@ -1,153 +0,0 @@ - - - - - - -TIFFWriteEncodedStrip - - - -

    TIFFWriteEncodedStrip

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWritedEncodedStrip − compress and write a -strip of data to an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFWriteEncodedStrip(TIFF -*tif, tstrip_t strip, -tdata_t buf, tsize_t -size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Compress size bytes of raw data from -buf and write the result to the specified strip; -replacing any previously written data. Note that the value -of strip is a ‘‘raw strip -number.’’ That is, the caller must take into -account whether or not the data are organized in separate -planes (PlanarConfiguration=2).

    -
    - -

    NOTES

    - - - - - -
    -

    The library writes encoded data using the native -machine byte order. Correctly implemented TIFF -readers are expected to do any necessary byte-swapping -to correctly process image data with BitsPerSample greater -than 8.

    - -

    The strip number must be valid according to the -current settings of the ImageLength and -RowsPerStrip tags. An image may be dynamically grown -by increasing the value of ImageLength prior to each -call to TIFFWriteEncodedStrip.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    −1 is returned if an error was encountered. -Otherwise, the value of size is returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: File not open for writing. The file was -opened for reading, not writing.

    - -

    Can not write scanlines to a tiled image. The -image is assumed to be organized in tiles because the -TileWidth and TileLength tags have been set -with TIFFSetField(3TIFF).

    - -

    %s: Must set "ImageWidth" before -writing data. The image’s width has not be set -before the first write. See TIFFSetField(3TIFF) for -information on how to do this.

    - -

    %s: Must set "PlanarConfiguration" -before writing data. The organization of data has not be -defined before the first write. See -TIFFSetField(3TIFF) for information on how to do -this.

    - -

    %s: No space for strip arrays". There -was not enough space for the arrays that hold strip offsets -and byte counts.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteScanline(3TIFF), -TIFFWriteRawStrip(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteEncodedTile.3tiff.html b/tiff/html/man/TIFFWriteEncodedTile.3tiff.html deleted file mode 100755 index 5e85f6d..0000000 --- a/tiff/html/man/TIFFWriteEncodedTile.3tiff.html +++ /dev/null @@ -1,147 +0,0 @@ - - - - - - -TIFFWriteEncodedTile - - - -

    TIFFWriteEncodedTile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWritedEncodedTile − compress and write a -tile of data to an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFWriteEncodedTile(TIFF -*tif, ttile_t tile, tdata_t -buf, tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Compress size bytes of raw data from -buf and append the result to the end of the -specified tile. Note that the value of tile is a -‘‘raw tile number.’’ That is, the -caller must take into account whether or not the data are -organized in separate places (PlanarConfiguration=2). -TIFFComputeTile automatically does this when -converting an (x,y,z,sample) coordinate quadruple to a tile -number.

    -
    - -

    NOTES

    - - - - - -
    -

    The library writes encoded data using the native -machine byte order. Correctly implemented TIFF -readers are expected to do any necessary byte-swapping -to correctly process image data with BitsPerSample greater -than 8.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    −1 is returned if an error was encountered. -Otherwise, the value of size is returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: File not open for writing. The file was -opened for reading, not writing.

    - -

    Can not write tiles to a stripped image. The -image is assumed to be organized in strips because neither -of the TileWidth or TileLength tags have been -set with TIFFSetField(3TIFF).

    - -

    %s: Must set "ImageWidth" before -writing data. The image’s width has not be set -before the first write. See TIFFSetField(3TIFF) for -information on how to do this.

    - -

    %s: Must set "PlanarConfiguration" -before writing data. The organization of data has not be -defined before the first write. See -TIFFSetField(3TIFF) for information on how to do -this.

    - -

    %s: No space for tile arrays". There was -not enough space for the arrays that hold tile offsets and -byte counts.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFWriteTile(3TIFF), -TIFFWriteRawTile(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteRawStrip.3tiff.html b/tiff/html/man/TIFFWriteRawStrip.3tiff.html deleted file mode 100755 index 9a3ef0c..0000000 --- a/tiff/html/man/TIFFWriteRawStrip.3tiff.html +++ /dev/null @@ -1,144 +0,0 @@ - - - - - - -TIFFWriteRawstrip - - - -

    TIFFWriteRawstrip

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWriteRawStrip − write a strip of raw data to an -open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFWriteRawStrip(TIFF *tif, -tstrip_t strip, tdata_t buf, -tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Append size bytes of raw data to the specified -strip.

    -
    - -

    NOTES

    - - - - - -
    -

    The strip number must be valid according to the current -settings of the ImageLength and RowsPerStrip -tags. An image may be dynamically grown by increasing the -value of ImageLength prior to each call to -TIFFWriteRawStrip.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    −1 is returned if an error occurred. Otherwise, the -value of size is returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: File not open for writing. The file was opened -for reading, not writing.

    - -

    Can not write scanlines to a tiled image. The -image is assumed to be organized in tiles because the -TileWidth and TileLength tags have been set -with TIFFSetField(3TIFF).

    - -

    %s: Must set "ImageWidth" before writing -data. The image’s width has not be set before the -first write. See TIFFSetField(3TIFF) for information -on how to do this.

    - -

    %s: Must set "PlanarConfiguration" before -writing data. The organization of data has not be -defined before the first write. See -TIFFSetField(3TIFF) for information on how to do -this.

    - -

    %s: No space for strip arrays". There was not -enough space for the arrays that hold strip offsets and byte -counts.

    - -

    %s: Strip %d out of range, max %d. The specified -strip is not a valid strip according to the currently -specified image dimensions.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteEncodedStrip(3TIFF), -TIFFWriteScanline(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteRawTile.3tiff.html b/tiff/html/man/TIFFWriteRawTile.3tiff.html deleted file mode 100755 index 639af6c..0000000 --- a/tiff/html/man/TIFFWriteRawTile.3tiff.html +++ /dev/null @@ -1,128 +0,0 @@ - - - - - - -TIFFWriteRawtile - - - -

    TIFFWriteRawtile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWriteRawTile − write a tile of raw data to an -open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFWriteRawTile(TIFF *tif, -ttile_t tile, tdata_t buf, -tsize_t size)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Append size bytes of raw data to the specified -tile.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    −1 is returned if an error occurred. Otherwise, the -value of size is returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: File not open for writing. The file was opened -for reading, not writing.

    - -

    Can not write tiles to a stripped image. The image -is assumed to be organized in strips because neither of the -TileWidth or TileLength tags have been set -with TIFFSetField(3TIFF).

    - -

    %s: Must set "ImageWidth" before writing -data. The image’s width has not be set before the -first write. See TIFFSetField(3TIFF) for information -on how to do this.

    - -

    %s: Must set "PlanarConfiguration" before -writing data. The organization of data has not be -defined before the first write. See -TIFFSetField(3TIFF) for information on how to do -this.

    - -

    %s: No space for tile arrays". There was not -enough space for the arrays that hold tile offsets and byte -counts.

    - -

    %s: Specified tile %d out of range, max %d. The -specified tile is not valid according to the currently -specified image dimensions.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteEncodedTile(3TIFF), -TIFFWriteScanline(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteScanline.3tiff.html b/tiff/html/man/TIFFWriteScanline.3tiff.html deleted file mode 100755 index 4c68f9d..0000000 --- a/tiff/html/man/TIFFWriteScanline.3tiff.html +++ /dev/null @@ -1,206 +0,0 @@ - - - - - - -TIFFWriteScanline - - - -

    TIFFWriteScanline

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -NOTES
    -RETURN VALUES
    -DIAGNOSTICS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWriteScanline − write a scanline to an open -TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFWriteScanline(TIFF *tif, -tdata_t buf, uint32 row, -tsample_t sample)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Write data to a file at the specified row. The -sample parameter is used only if data are organized -in separate planes (PlanarConfiguration=2). The data -are assumed to be uncompressed and in the native bit- and -byte-order of the host machine. The data written to the file -is compressed according to the compression scheme of the -current TIFF directory (see further below). -If the current scanline is past the end of the current -subfile, the ImageLength field is automatically -increased to include the scanline (except for -PlanarConfiguration=2, where the ImageLength -cannot be changed once the first data are written). If the -ImageLength is increased, the StripOffsets and -StripByteCounts fields are similarly enlarged to -reflect data written past the previous end of image.

    -
    - -

    NOTES

    - - - - - -
    -

    The library writes encoded data using the native machine -byte order. Correctly implemented TIFF -readers are expected to do any necessary byte-swapping to -correctly process image data with BitsPerSample greater than -8. The library attempts to hide bit-ordering differences -between the image and the native machine by converting data -from the native machine order.

    - -

    In C++ the sample parameter defaults to 0.

    - -

    Once data are written to a file for the current -directory, the values of certain tags may not be altered; -see TIFFSetField(3TIFF) for more information.

    - -

    It is not possible to write scanlines to a file that uses -a tiled organization. The routine TIFFIsTiled can be -used to determine if the file is organized as tiles or -strips.

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFWriteScanline returns −1 if it -immediately detects an error and 1 for a successful -write.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    - -

    %s: File not open for writing . The file was -opened for reading, not writing.

    - -

    Can not write scanlines to a tiled image. An -attempt was made to write a scanline to a tiled image. The -image is assumed to be organized in tiles because the -TileWidth and TileLength tags have been set -with TIFFSetField(3TIFF).

    - -

    Compression algorithm does not support random -access. Data was written in a non-sequential order to a -file that uses a compression algorithm and that has -RowsPerStrip greater than one. That is, data in the -image is to be stored in a compressed form, and with -multiple rows packed into a strip. In this case, the library -does not support random access to the data. The data should -either be written as entire strips, sequentially by rows, or -the value of RowsPerStrip should be set to one.

    - -

    %s: Must set "ImageWidth" before writing -data. The image’s width has not be set before the -first write. See TIFFSetField(3TIFF) for information -on how to do this.

    - -

    %s: Must set "PlanarConfiguration" before -writing data. The organization of data has not be -defined before the first write. See -TIFFSetField(3TIFF) for information on how to do -this.

    - -

    Can not change "ImageLength" when using -separate planes. Separate image planes are being used -(PlanarConfiguration=2), but the number of rows has -not been specified before the first write. The library -supports the dynamic growth of an image only when data are -organized in a contiguous manner -(PlanarConfiguration=1).

    - -

    %d: Sample out of range, max %d. The sample -parameter was greater than the value of the SamplesPerPixel -tag.

    - -

    %s: No space for strip arrays . There was not -enough space for the arrays that hold strip offsets and byte -counts.

    -
    - -

    BUGS

    - - - - - -
    -

    Writing subsampled YCbCR data does not work correctly -because, for PlanarConfiguration=2 the size of a -scanline is not calculated on a per-sample basis, and for -PlanarConfiguration=1 the library does not pack the -block-interleaved samples.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), -TIFFWriteEncodedStrip(3TIFF), -TIFFWriteRawStrip(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFWriteTile.3tiff.html b/tiff/html/man/TIFFWriteTile.3tiff.html deleted file mode 100755 index 6f6ffd2..0000000 --- a/tiff/html/man/TIFFWriteTile.3tiff.html +++ /dev/null @@ -1,115 +0,0 @@ - - - - - - -TIFFWriteTile - - - -

    TIFFWriteTile

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -RETURN VALUES
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFWriteTile − encode and write a tile of data to -an open TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFWriteTile(TIFF *tif, -tdata_t buf, uint32 x, -uint32 y, uint32 z, -tsample_t sample)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Write the data for the tile containing the -specified coordinates. The data in buf are is -(potentially) compressed, and written to the indicated file, -normally being appended to the end of the file. The buffer -must be contain an entire tile of data. Applications should -call the routine TIFFTileSize to find out the size -(in bytes) of a tile buffer. The x and y -parameters are always used by TIFFWriteTile. The -z parameter is used if the image is deeper than 1 -slice (ImageDepth>1). The sample parameter -is used only if data are organized in separate planes -(PlanarConfiguration=2).

    -
    - -

    RETURN VALUES

    - - - - - -
    -

    TIFFWriteTile returns −1 if it detects an -error; otherwise the number of bytes in the tile is -returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    All error messages are directed to the -TIFFError(3TIFF) routine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFCheckTile(3TIFF), -TIFFComputeTile(3TIFF), TIFFOpen(3TIFF), -TIFFReadTile(3TIFF), TIFFWriteScanline(3TIFF), -TIFFWriteEncodedTile(3TIFF), -TIFFWriteRawTile(3TIFF), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFbuffer.3tiff.html b/tiff/html/man/TIFFbuffer.3tiff.html deleted file mode 100755 index 09009b5..0000000 --- a/tiff/html/man/TIFFbuffer.3tiff.html +++ /dev/null @@ -1,116 +0,0 @@ - - - - - - -TIFFBUFFER - - - -

    TIFFBUFFER

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFReadBufferSetup, TIFFWriteBufferSetup − I/O -buffering control routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -
    #include <tiffio.h>
-
-int TIFFReadBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
-int TIFFWriteBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
-
    -
    - -

    DESCRIPTION

    - - - - - - -
    -

    The following routines are provided for client-control of -the I/O buffers used by the library. Applications need never -use these routines; they are provided only for -‘‘intelligent clients’’ that wish to -optimize memory usage and/or eliminate potential copy -operations that can occur when working with images that have -data stored without compression.

    - -

    TIFFReadBufferSetup sets up the data buffer used -to read raw (encoded) data from a file. If the specified -pointer is NULL (zero), then a buffer of the -appropriate size is allocated. Otherwise the caller must -guarantee that the buffer is large enough to hold any -individual strip of raw data. TIFFReadBufferSetup -returns a non-zero value if the setup was successful and -zero otherwise.

    - -

    TIFFWriteBufferSetup sets up the data buffer used -to write raw (encoded) data to a file. If the specified -size is −1 then the buffer size is selected to -hold a complete tile or strip, or at least 8 kilobytes, -whichever is greater. If the specified buffer is -NULL (zero), then a buffer of the appropriate -size is dynamically allocated. TIFFWriteBufferSetup -returns a non-zero value if the setup was successful and -zero otherwise.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    %s: No space for data buffer at scanline %ld. -TIFFReadBufferSetup was unable to dynamically -allocate space for a data buffer.

    - -

    %s: No space for output buffer. -TIFFWriteBufferSetup was unable to dynamically -allocate space for a data buffer.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFcodec.3tiff.html b/tiff/html/man/TIFFcodec.3tiff.html deleted file mode 100755 index d200754..0000000 --- a/tiff/html/man/TIFFcodec.3tiff.html +++ /dev/null @@ -1,116 +0,0 @@ - - - - - - -CODEC - - - -

    CODEC

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, -TIFFIsCODECConfigured − codec-related utility -routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    const TIFFCodec* TIFFFindCODEC(uint16 -scheme);
    -TIFFCodec* TIFFRegisterCODEC(uint16     scheme, -const char *method, TIFFInitMethod -init);
    -void TIFFUnRegisterCODEC(TIFFCodec -*    codec);
    -int TIFFIsCODECConfigured(uint16     -scheme);

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    libtiff supports a variety of compression schemes -implemented by software codecs. Each codec adheres to -a modular interface that provides for the decoding and -encoding of image data; as well as some other methods for -initialization, setup, cleanup, and the control of default -strip and tile sizes. Codecs are identified by the -associated value of the TIFF -Compression tag; e.g. 5 for LZW -compression.

    - -

    The TIFFRegisterCODEC routine can be used to -augment or override the set of codecs available to an -application. If the specified scheme already has a -registered codec then it is overridden and any images -with data encoded with this compression scheme will be -decoded using the supplied coded.

    - -

    TIFFIsCODECConfigured returns 1 if the codec is -configured and working. Otherwise 0 will be returned.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    No space to register compression scheme %s. -TIFFRegisterCODEC was unable to allocate memory for -the data structures needed to register a codec.

    - -

    Cannot remove compression scheme %s; not -registered. TIFFUnRegisterCODEC did not locate -the specified codec in the table of registered compression -schemes.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFcolor.3tiff.html b/tiff/html/man/TIFFcolor.3tiff.html deleted file mode 100755 index edf423b..0000000 --- a/tiff/html/man/TIFFcolor.3tiff.html +++ /dev/null @@ -1,975 +0,0 @@ - - - - - - -COLOR - - - -

    COLOR

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFYCbCrToRGBInit, TIFFYCbCrtoRGB, TIFFCIELabToRGBInit, -TIFFCIELabToXYZ, TIFFXYZToRGB − color conversion -routines.

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB -*ycbcr, float *luma, float -*refBlackWhite");"
    -void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *    ycbcr, -uint32 Y, int32 Cb, int32 -Cr, uint32 *R, uint32 -*G, uint32 *B );

    - -

    int TIFFCIELabToRGBInit(TIFFCIELabToRGB -*cielab, TIFFDisplay *display, -float *refWhite);
    -void TIFFCIELabToXYZ(TIFFCIELabToRGB *    cielab, -uint32 L, int32 a, int32 -b, float *X, float *Y, -float *Z);
    -void TIFFXYZToRGB(TIFFCIELabToRGB *    cielab, -float X, float Y, float -Z",uint32*"R, -uint32 *G, uint32 *B);

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFF supports several color spaces for images stored in -that format. There is usually a problem of application to -handle the data properly and convert between different -colorspaces for displaying and printing purposes. To -simplify this task libtiff implements several color -conversion routines itself. In particular, these routines -used in TIFFRGBAImage(3TIFF) interface.

    - -

    TIFFYCbCrToRGBInit() used to initialize -YCbCr to RGB conversion state. Allocating and -freeing of the ycbcr structure belongs to programmer. -TIFFYCbCrToRGB defined in tiffio.h as

    -
    - - - - - -
    -
    typedef struct {                /* YCbCr->RGB support */
-        TIFFRGBValue* clamptab; /* range clamping table */
-
    -
    - - - - - -

    int*

    - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    Cr_r_tab;
    -int*

    -    		 -
    - -

    Cb_b_tab;
    -int32*

    -    		 -
    - -

    Cr_g_tab;
    -int32*

    -    		 -
    - -

    Cb_g_tab;

    -    		 -
    - - - - - -
    -

    int32* Y_tab;
    -} TIFFYCbCrToRGB;

    - - - - - -
    -

    luma is a float array of three values representing -proportions of the red, green and blue in luminance, Y (see -section 21 of the TIFF 6.0 specification, where the YCbCr -images discussed). TIFFTAG_YCBCRCOEFFICIENTS holds -that values in TIFF file. refBlackWhite is a float -array of 6 values which specifies a pair of headroom and -footroom image data values (codes) for each image component -(see section 20 of the TIFF 6.0 specification where the -colorinmetry fields discussed). -TIFFTAG_REFERENCEBLACKWHITE is responsible for -storing these values in TIFF file. Following code snippet -should helps to understand the the technique:

    -
    - - - - - -
    -
    float *luma, *refBlackWhite;
-uint16 hs, vs;
-
-/* Initialize structures */
-ycbcr = (TIFFYCbCrToRGB*)
-
    -
    - - - - - - - - - - - - - - - -
    - -

    _TIFFmalloc(TIFFroundup(sizeof(TIFFYCbCrToRGB), -sizeof(long))

    -
    - -

    + 4*256*sizeof(TIFFRGBValue)

    -
    - -

    + 2*256*sizeof(int)

    -
    - -

    + 3*256*sizeof(int32));

    -
    - - - - - -
    -

    if (ycbcr == NULL) {
    -TIFFError("YCbCr->RGB",

    - - - - - - - -
    - - -

    "No space for YCbCr->RGB conversion -state");

    -    		 -
    - - - - - -
    -

    exit(0);
    -}

    - -

    TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRCOEFFICIENTS, -&luma);
    -TIFFGetFieldDefaulted(tif, TIFFTAG_REFERENCEBLACKWHITE, -&refBlackWhite);
    -if (TIFFYCbCrToRGBInit(ycbcr, luma, refBlackWhite) < -0)

    - - - - - -
    - -

    exit(0);

    -
    - - - - - -
    -

    /* Start conversion */
    -uint32 r, g, b;
    -uint32 Y;
    -int32 Cb, Cr;

    - -

    for each pixel in image

    - - - - - -
    - -

    TIFFYCbCrtoRGB(img->ycbcr, Y, Cb, Cr, &r, &g, -&b);

    -
    - - - - - -
    -

    /* Free state structure */
    -_TIFFfree(ycbcr);

    - - - - - -
    -

    TIFFCIELabToRGBInit() initializes the CIE -L*a*b* 1976 to RGB conversion state. -TIFFCIELabToRGB defined as

    -
    - - - - - -
    -
    #define CIELABTORGB_TABLE_RANGE 1500
-
-
    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    typedef struct {

    -    		 - - -

    /* CIE Lab 1976->RGB support */

    -    		 -
    - - -

    int

    -    		 - -

    range;

    -    		 - - -

    /* Size of conversion table */

    -    		 -
    - - -

    float

    -    		 - -

    rstep, gstep, bstep;

    -    		 -
    - - -

    float

    -    		 - -

    X0, Y0, Z0;

    -    		 - -

    /* Reference white point */

    -    		 -
    - -

    TIFFDisplay display;

    -    		 -
    - - -

    float

    -    		 - -

    Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr -to r */

    -    		 -
    - - -

    float

    -    		 - -

    Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg -to g */

    -    		 -
    - - -

    float

    -    		 - -

    Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb -to b */

    -    		 -
    - - - - - -
    -

    } TIFFCIELabToRGB;

    - - - - - -
    -

    display is a display device description, declared -as

    -
    - - - - - -
    -
    typedef struct {
-
    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    float d_mat[3][3]; /* XYZ -> luminance matrix */

    -
    - -

    float d_YCR; /* Light o/p for reference white */

    -
    - -

    float d_YCG;

    -
    - -

    float d_YCB;

    -
    - -

    uint32 d_Vrwr; /* Pixel values for ref. white */

    -
    - -

    uint32 d_Vrwg;

    -
    - -

    uint32 d_Vrwb;

    -
    - -

    float d_Y0R; /* Residual light for black pixel */

    -
    - -

    float d_Y0G;

    -
    - -

    float d_Y0B;

    -
    - -

    float d_gammaR; /* Gamma values for the three guns -*/

    -
    - -

    float d_gammaG;

    -
    - -

    float d_gammaB;

    -
    - - - - - -
    -

    } TIFFDisplay;

    - - - - - -
    -

    For example, the one can use sRGB device, which has the -following parameters:

    -
    - - - - - -
    -
    TIFFDisplay display_sRGB = {
-
    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    { /* XYZ -> luminance matrix */

    -    		 -
    - - -

    { 3.2410F, -1.5374F, -0.4986F },

    -    		 -
    - - -

    { -0.9692F, 1.8760F, 0.0416F },

    -    		 -
    - - -

    { 0.0556F, -0.2040F, 1.0570F }

    -    		 -
    - -

    },

    -    		 - -
    - -

    100.0F, 100.0F, 100.0F, /* Light o/p for reference white -*/

    -    		 -
    - -

    255, 255, 255, /* Pixel values for ref. white */

    -    		 -
    - -

    1.0F, 1.0F, 1.0F, /* Residual light o/p for black pixel -*/

    -    		 -
    - -

    2.4F, 2.4F, 2.4F, /* Gamma values for the three guns -*/

    -    		 -
    - - - - - -
    -

    };

    - - - - - -
    -

    refWhite is a color temperature of the reference -white. The TIFFTAG_WHITEPOINT contains the -chromaticity of the white point of the image from where the -reference white can be calculated using following -formulae:

    -
    - - - - - -
    -

    refWhite_Y = 100.0
    -refWhite_X = whitePoint_x / whitePoint_y * refWhite_Y
    -refWhite_Z = (1.0 - whitePoint_x - whitePoint_y) / -whitePoint_y * refWhite_X

    - - - - - -
    -

    The conversion itself performed in two steps: at the -first one we will convert CIE L*a*b* 1976 to CIE -XYZ using TIFFCIELabToXYZ() routine, and at the -second step we will convert CIE XYZ to RGB -using TIFFXYZToRGB(). Look at the code sample -below:

    -
    - - - - - -
    -
    float   *whitePoint;
-float   refWhite[3];
-
-/* Initialize structures */
-img->cielab = (TIFFCIELabToRGB *)
-
    -
    - - - - - - -
    - -

    _TIFFmalloc(sizeof(TIFFCIELabToRGB));

    -
    - - - - - -
    -

    if (!cielab) {

    - - - - - - - - - - - - - - - - - - - - -
    - -

    TIFFError("CIE L*a*b*->RGB",

    -    		 -
    - - -

    "No space for CIE L*a*b*->RGB conversion -state.");

    -    		 -
    - -

    exit(0);

    -    		 -
    - - - - - -
    -

    }

    - -

    TIFFGetFieldDefaulted(tif, TIFFTAG_WHITEPOINT, -&whitePoint);
    -refWhite[1] = 100.0F;
    -refWhite[0] = whitePoint[0] / whitePoint[1] * -refWhite[1];
    -refWhite[2] = (1.0F - whitePoint[0] - -whitePoint[1])

    - - - - - -
    - -

    / whitePoint[1] * refWhite[1];

    -
    - - - - - -
    -

    if (TIFFCIELabToRGBInit(cielab, &display_sRGB, -refWhite) < 0) {

    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    TIFFError("CIE L*a*b*->RGB",

    -    		 -
    - - -

    "Failed to initialize CIE L*a*b*->RGB conversion -state.");

    -    		 -
    - -

    _TIFFfree(cielab);

    -    		 -
    - -

    exit(0);

    -    		 -
    - - - - - -
    -

    }

    - -

    /* Now we can start to convert */
    -uint32 r, g, b;
    -uint32 L;
    -int32 a, b;
    -float X, Y, Z;

    - -

    for each pixel in image

    - - - - - - - - -
    - -

    TIFFCIELabToXYZ(cielab, L, a, b, &X, &Y, -&Z);

    -
    - -

    TIFFXYZToRGB(cielab, X, Y, Z, &r, &g, -&b);

    -
    - - - - - -
    -

    /* Don’t forget to free the state structure */
    -_TIFFfree(cielab);

    - -

    SEE ALSO

    - - - - - -
    -

    TIFFRGBAImage(3TIFF) libtiff(3TIFF),

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFmemory.3tiff.html b/tiff/html/man/TIFFmemory.3tiff.html deleted file mode 100755 index c3f38e0..0000000 --- a/tiff/html/man/TIFFmemory.3tiff.html +++ /dev/null @@ -1,110 +0,0 @@ - - - - - - -MEMORY - - - -

    MEMORY

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    _TIFFmalloc, _TIFFrealloc, _TIFFfree, _TIFFmemset, -_TIFFmemcpy, _TIFFmemcmp, − memory management-related -functions for use with TIFF files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tdata_t _TIFFmalloc(tsize_t size);
    -tdata_t _TIFFrealloc(tdata_t     buffer, -tsize_t size);
    -void _TIFFfree(tdata_t     buffer);
    -void _TIFFmemset(tdata_t     s, int -c, tsize_t n);
    -void _TIFFmemcpy(tdata_t     dest, const -tdata_t src, tsize_t n);
    -int _TIFFmemcmp(const tdata_t     s1, const -tdata_t s2, tsize_t n);

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    These routines are provided for writing portable software -that uses libtiff; they hide any memory-management -related issues, such as dealing with segmented architectures -found on 16-bit machines.

    - -

    _TIFFmalloc and _TIFFrealloc are used to -dynamically allocate and reallocate memory used by -libtiff; such as memory passed into the I/O routines. -Memory allocated through these interfaces is released back -to the system using the _TIFFfree routine.

    - -

    Memory allocated through one of the above interfaces can -be set to a known value using _TIFFmemset, copied to -another memory location using _TIFFmemcpy, or -compared for equality using _TIFFmemcmp. These -routines conform to the equivalent ANSI C -routines: memset, memcpy, and memcmp, -repsectively.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    malloc(3), memory(3), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFquery.3tiff.html b/tiff/html/man/TIFFquery.3tiff.html deleted file mode 100755 index 2b47fc3..0000000 --- a/tiff/html/man/TIFFquery.3tiff.html +++ /dev/null @@ -1,148 +0,0 @@ - - - - - - -QUERY - - - -

    QUERY

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFCurrentRow, TIFFCurrentStrip, TIFFCurrentTile, -TIFFCurrentDirectory, TIFFLastDirectory, TIFFFileno, -TIFFFileName, TIFFGetMode, TIFFIsTiled, TIFFIsByteSwapped, -TIFFIsUpSampled, TIFFIsMSB2LSB, TIFFGetVersion − query -routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    uint32 TIFFCurrentRow(TIFF* tif)
    -tstrip_t TIFFCurrentStrip(TIFF*     tif)
    -ttile_t TIFFCurrentTile(TIFF*     tif)
    -tdir_t TIFFCurrentDirectory(TIFF*     tif)
    -int TIFFLastDirectory(TIFF*     tif)
    -int TIFFFileno(TIFF*     tif)
    -char* TIFFFileName(TIFF*     tif)
    -int TIFFGetMode(TIFF*     tif)
    -int TIFFIsTiled(TIFF*     tif)
    -int TIFFIsByteSwapped(TIFF*     tif)
    -int TIFFIsUpSampled(TIFF*     tif)
    -int TIFFIsMSB2LSB(TIFF*     tif)
    -const char* TIFFGetVersion(void)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    The following routines return status information about an -open TIFF file.

    - -

    TIFFCurrentDirectory returns the index of the -current directory (directories are numbered starting at 0). -This number is suitable for use with the -TIFFSetDirectory routine.

    - -

    TIFFLastDirectory returns a non-zero value if the -current directory is the last directory in the file; -otherwise zero is returned.

    - -

    TIFFCurrentRow, TIFFCurrentStrip, and -TIFFCurrentTile, return the current row, strip, and -tile, respectively, that is being read or written. These -values are updated each time a read or write is done.

    - -

    TIFFFileno returns the underlying file descriptor -used to access the TIFF image in the -filesystem.

    - -

    TIFFFileName returns the pathname argument passed -to TIFFOpen or TIFFFdOpen.

    - -

    TIFFGetMode returns the mode with which the -underlying file was opened. On UNIX systems, -this is the value passed to the open(2) system -call.

    - -

    TIFFIsTiled returns a non-zero value if the image -data has a tiled organization. Zero is returned if the image -data is organized in strips.

    - -

    TIFFIsByteSwapped returns a non-zero value if the -image data was in a different byte-order than the host -machine. Zero is returned if the TIFF file and local host -byte-orders are the same. Note that TIFFReadTile(), -TIFFReadStrip() and TIFFReadScanline() functions already -normally perform byte swapping to local host order if -needed.

    - -

    TIFFIsUpSampled returns a non-zero value if image -data returned through the read interface routines is being -up-sampled. This can be useful to applications that want to -calculate I/O buffer sizes to reflect this usage (though the -usual strip and tile size routines already do this).

    - -

    TIFFIsMSB2LSB returns a non-zero value if the -image data is being returned with bit 0 as the most -significant bit.

    - -

    TIFFGetVersion returns an ASCII -string that has a version stamp for the TIFF -library software.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF), TIFFOpen(3TIFF), -TIFFFdOpen(3TIFF)

    -
    -
    - - diff --git a/tiff/html/man/TIFFsize.3tiff.html b/tiff/html/man/TIFFsize.3tiff.html deleted file mode 100755 index 5a14254..0000000 --- a/tiff/html/man/TIFFsize.3tiff.html +++ /dev/null @@ -1,95 +0,0 @@ - - - - - - -TIFFSIZE - - - -

    TIFFSIZE

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFScanlineSize, TIFFRasterScanlineSize, − return -the size of various items associated with an open -TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    tsize_t TIFFRasterScanlineSize(TIFF -*tif)
    -tsize_t TIFFScanlineSize(TIFF *    tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFScanlineSize returns the size in bytes of a -row of data as it would be returned in a call to -TIFFReadScanline, or as it would be expected in a -call to TIFFWriteScanline.

    - -

    TIFFRasterScanlineSize returns the size in bytes -of a complete decoded and packed raster scanline. Note that -this value may be different from the value returned by -TIFFScanlineSize if data is stored as separate -planes.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFOpen(3TIFF), TIFFReadScanline(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFstrip.3tiff.html b/tiff/html/man/TIFFstrip.3tiff.html deleted file mode 100755 index b8bc7c6..0000000 --- a/tiff/html/man/TIFFstrip.3tiff.html +++ /dev/null @@ -1,129 +0,0 @@ - - - - - - -TIFFSTRIP - - - -

    TIFFSTRIP

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFDefaultStripSize, TIFFStripSize, TIFFVStripSize, -TIFFRawStripSize, TIFFComputeStrip, TIFFNumberOfStrips -− strip-related utility routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    uint32 TIFFDefaultStripSize(TIFF *tif, -uint32 estimate)
    -tsize_t TIFFStripSize(TIFF *    tif)
    -tsize_t TIFFVStripSize(TIFF *    tif, uint32 -nrows)
    -tsize_t TIFFRawStripSize(TIFF *    tif, -tstrip_t strip)
    -tstrip_t TIFFComputeStrip(TIFF *    tif, -uint32 row, tsample_t -sample)
    -tstrip_t TIFFNumberOfStrips(TIFF *    tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFDefaultStripSize returns the number of rows -for a reasonable-sized strip according to the current -settings of the ImageWidth, BitsPerSample, -SamplesPerPixel, tags and any compression-specific -requirements. If the estimate parameter, if non-zero, -then it is taken as an estimate of the desired strip size -and adjusted according to any compression-specific -requirements. The value returned by this function is -typically used to define the RowsPerStrip tag. In -lieu of any unusual requirements TIFFDefaultStripSize -tries to create strips that have approximately 8 kilobytes -of uncompressed data.

    - -

    TIFFStripSize returns the equivalent size for a -strip of data as it would be returned in a call to -TIFFReadEncodedStrip or as it would be expected in a -call to TIFFWriteEncodedStrip.

    - -

    TIFFVStripSize returns the number of bytes in a -strip with nrows rows of data.

    - -

    TIFFRawStripSize returns the number of bytes in a -raw strip (i.e. not decoded).

    - -

    TIFFComputeStrip returns the strip that contains -the specified coordinates. A valid strip is always returned; -out-of-range coordinate values are clamped to the bounds of -the image. The row parameter is always used in -calculating a strip. The sample parameter is used -only if data are organized in separate planes -(PlanarConfiguration=2).

    - -

    TIFFNumberOfStrips returns the number of strips in -the image.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFReadEncodedStrip(3TIFF), -TIFFReadRawStrip(3TIFF), -TIFFWriteEncodedStrip(3TIFF), -TIFFWriteRawStrip(3TIFF), libtiff(3TIFF),

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFswab.3tiff.html b/tiff/html/man/TIFFswab.3tiff.html deleted file mode 100755 index 80d1db4..0000000 --- a/tiff/html/man/TIFFswab.3tiff.html +++ /dev/null @@ -1,110 +0,0 @@ - - - - - - -SWAB - - - -

    SWAB

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFGetBitRevTable, TIFFReverseBits, TIFFSwabShort, -TIFFSwabLong, TIFFSwabArrayOfShort, TIFFSwabArrayOfLong -− byte- and bit-swapping routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    const unsigned char* TIFFGetBitRevTable(int -reversed)
    -void TIFFReverseBits(u_char *    data, unsigned -long nbytes)
    -void TIFFSwabShort(uint16 *    data)
    -void TIFFSwabLong(uint32 *    data)
    -void TIFFSwabArrayOfShort(uint16 *    data, -unsigned long nshorts)
    -void TIFFSwabArrayOfLong(uint32 *    data, -unsigned long nlongs)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    The following routines are used by the library to swap -16- and 32-bit data and to reverse the order of bits in -bytes.

    - -

    TIFFSwabShort and TIFFSwabLong swap the -bytes in a single 16-bit and 32-bit item, respectively. -TIFFSwabArrayOfShort and TIFFSwabArrayOfLong -swap the bytes in an array of 16-bit and 32-bit items, -respectively.

    - -

    TIFFReverseBits replaces each byte in data -with the equivalent bit-reversed value. This operation is -performed with a lookup table, which is returned using the -TIFFGetBitRevTable function. reversed -parameter specifies which table should be returned. Supply -1 if you want bit reversal table. Supply 0 to -get the table that do not reverse bit values. It is a lookup -table that can be used as an identity function; i.e. -TIFFNoBitRevTable[n] == n.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/TIFFtile.3tiff.html b/tiff/html/man/TIFFtile.3tiff.html deleted file mode 100755 index addeb51..0000000 --- a/tiff/html/man/TIFFtile.3tiff.html +++ /dev/null @@ -1,141 +0,0 @@ - - - - - - -TIFFTILE - - - -

    TIFFTILE

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DIAGNOSTICS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    TIFFTileSize, TIFFTileRowSize, TIFFVTileSize, -TIFFDefaultTileSize, TIFFComputeTile, TIFFCheckTile, -TIFFNumberOfTiles − tile-related utility routines

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    void TIFFDefaultTileSize(TIFF *tif, -uint32 *tw, uint32 *th)
    -tsize_t TIFFTileSize(TIFF *    tif)
    -tsize_t TIFFTileRowSize(TIFF *    tif)
    -tsize_t TIFFVTileSize(TIFF *    tif, uint32 -nrows)
    -ttile_t TIFFComputeTile(TIFF *    tif, uint32 -x, uint32 y, uint32 z, -tsample_t sample)
    -int TIFFCheckTile(TIFF *    tif, uint32 -x, uint32 y, uint32 z, -tsample_t sample)
    -ttile_t TIFFNumberOfTiles(TIFF *    tif)

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    TIFFDefaultTileSize returns the pixel width and -height of a reasonable-sized tile; suitable for setting up -the TileWidth and TileLength tags. If the -tw and th values passed in are non-zero, then -they are adjusted to reflect any compression-specific -requirements. The returned width and height are constrained -to be a multiple of 16 pixels to conform with the -TIFF specification.

    - -

    TIFFTileSize returns the equivalent size for a -tile of data as it would be returned in a call to -TIFFReadTile or as it would be expected in a call to -TIFFWriteTile.

    - -

    TIFFVTileSize returns the number of bytes in a -row-aligned tile with nrows of data.

    - -

    TIFFTileRowSize returns the number of bytes of a -row of data in a tile.

    - -

    TIFFComputeTile returns the tile that contains the -specified coordinates. A valid tile is always returned; -out-of-range coordinate values are clamped to the bounds of -the image. The x and y parameters are always -used in calculating a tile. The z parameter is used -if the image is deeper than 1 slice -(ImageDepth>1). The sample parameter is -used only if data are organized in separate planes -(PlanarConfiguration=2).

    - -

    TIFFCheckTile returns a non-zero value if the -supplied coordinates are within the bounds of the image and -zero otherwise. The x parameter is checked against -the value of the ImageWidth tag. The y -parameter is checked against the value of the -ImageLength tag. The z parameter is checked -against the value of the ImageDepth tag (if defined). -The sample parameter is checked against the value of -the SamplesPerPixel parameter if the data are -organized in separate planes.

    - -

    TIFFNumberOfTiles returns the number of tiles in -the image.

    -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    None.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    TIFFReadEncodedTile(3TIFF), -TIFFReadRawTile(3TIFF), TIFFReadTile(3TIFF), -TIFFWriteEncodedTile(3TIFF), -TIFFWriteRawTile(3TIFF), TIFFWriteTile(3TIFF), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/bmp2tiff.1.html b/tiff/html/man/bmp2tiff.1.html deleted file mode 100755 index 1104a49..0000000 --- a/tiff/html/man/bmp2tiff.1.html +++ /dev/null @@ -1,121 +0,0 @@ - - - - - - -BMP2TIFF - - - -

    BMP2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    bmp2tiff − create a TIFF file from a -Microsoft Windows Device Independent Bitmap image file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    bmp2tiff [ options ] input.bmp -output.tiff

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    bmp2tiff converts a Microsoft Windows Device -Independent Bitmap image file to TIFF. By -default, the TIFF image is created with data -samples packed (PlanarConfiguration=1), compressed -with the PackBits algorithm -(Compression=32773), and with each strip no -more than 8 kilobytes. These characteristics can overridden, -or explicitly specified with the options described -below.

    -
    - -

    OPTIONS

    - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, -c -packbits for the PackBits compression algorithm (the -default), -c jpeg for the baseline JPEG compression -algorithm, -c zip for the Deflate compression -algorithm, and −c lzw for Lempel-Ziv & -Welch.

    -    		 -
    - - - - - -
    -

    −r <number>

    - - - - - -
    -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    gif2tiff(1), pal2rgb(1), -ppm2tiff(1), raw2tiff(1), ras2tiff(1), -sgi2tiff(1), libtiff(3TIFF)

    -
    -
    - - diff --git a/tiff/html/man/fax2ps.1.html b/tiff/html/man/fax2ps.1.html deleted file mode 100755 index aba6fc3..0000000 --- a/tiff/html/man/fax2ps.1.html +++ /dev/null @@ -1,252 +0,0 @@ - - - - - - -FAX2PS - - - -

    FAX2PS

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -DIAGNOSTICS
    -NOTES
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    fax2ps − convert a TIFF facsimile to -compressed PostScript™

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    fax2ps [ options ] [ file ... ]

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    fax2ps reads one or more TIFF -facsimile image files and prints a compressed form of -PostScript on the standard output that is suitable for -printing.

    - -

    By default, each page is scaled to reflect the image -dimensions and resolutions stored in the file. The -−x and −y options can be used to -specify the horizontal and vertical image resolutions -(lines/inch), respectively. If the −S option is -specified, each page is scaled to fill an output page. The -default output page is 8.5 by 11 inches. Alternate page -dimensions can be specified in inches with the -−W and −H options.

    - -

    By default fax2ps generates PostScript for all -pages in the file. The −p option can be used to -select one or more pages from a multi-page document.

    - -

    fax2ps generates a compressed form of PostScript -that is optimized for sending pages of text to a PostScript -printer attached to a host through a low-speed link (such as -a serial line). Each output page is filled with white and -then only the black areas are drawn. The PostScript -specification of the black drawing operations is optimized -by using a special font that encodes the move-draw -operations required to fill the black regions on the page. -This compression scheme typically results in a substantially -reduced PostScript description, relative to the -straightforward imaging of the page with a PostScript -image operator. This algorithm can, however, be -ineffective for continuous-tone and white-on-black images. -For these images, it sometimes is more efficient to send the -raster bitmap image directly; see tiff2ps(1).

    -
    - -

    OPTIONS

    - - - - - - - -
    - -

    −p number

    -    		 - -

    Print only the indicated page. Multiple pages may be -printed by specifying this option more than once.

    -    		 -
    - - - - - -
    -

    −x resolution

    - - - - - -
    -

    Use resolution as the horizontal resolution, in -dots/inch, of the image data. By default this value is taken -from the file.

    -
    - - - - - -
    -

    −y resolution

    - - - - - -
    -

    Use resolution as the vertical resolution, in -lines/inch, of the image data. By default this value is -taken from the file.

    -
    - - - - - - - - - - - - - - - - - -
    - -

    −S

    -    		 - -

    Scale each page of image data to fill the output page -dimensions. By default images are presented according to the -dimension information recorded in the TIFF -file.

    -    		 -
    - -

    −W width

    -    		 - -

    Use width as the width, in inches, of the output -page.

    -    		 -
    - -

    −H height

    -    		 - -

    Use height as the height, in inches, of the -output page.

    -    		 -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    Some messages about malformed TIFF images -come from the TIFF library.

    - -

    Various messages about badly formatted facsimile images -may be generated due to transmission errors in received -facsimile. fax2ps attempts to recover from such data -errors by resynchronizing decoding at the end of the current -scanline. This can result in long horizontal black lines in -the resultant PostScript image.

    -
    - -

    NOTES

    - - - - - -
    -

    If the destination printer supports PostScript Level II -then it is always faster to just send the encoded bitmap -generated by the tiff2ps(1) program.

    -
    - -

    BUGS

    - - - - - -
    -

    fax2ps should probably figure out when it is doing -a poor job of compressing the output and just generate -PostScript to image the bitmap raster instead.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiff2ps(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/fax2tiff.1.html b/tiff/html/man/fax2tiff.1.html deleted file mode 100755 index 3aac8c7..0000000 --- a/tiff/html/man/fax2tiff.1.html +++ /dev/null @@ -1,607 +0,0 @@ - - - - - - -FAX2TIFF - - - -

    FAX2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -DIAGNOSTICS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    fax2tiff − create a TIFF Class F fax -file from raw fax data

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    fax2tiff [ options ] [ −o -output.tif ] input.raw

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Fax2tiff creates a TIFF file -containing CCITT Group 3 or Group 4 encoded -data from one or more files containing -‘‘raw’’ Group 3 or Group 4 encoded -data (typically obtained directly from a fax modem). By -default, each row of data in the resultant -TIFF file is 1-dimensionally encoded and -padded or truncated to 1728 pixels, as needed. The resultant -image is a set of low resolution (98 lines/inch) or medium -resolution (196 lines/inch) pages, each of which is a single -strip of data. The generated file conforms to the -TIFF Class F ( FAX ) -specification for storing facsimile data. This means, in -particular, that each page of the data does not -include the trailing return to control ( -RTC ) code; as required for transmission by -the CCITT Group 3 specifications. The old, -‘‘classic’’, format is created if -the −c option is used. (The Class F format can -also be requested with the −f option.)

    - -

    The default name of the output image is fax.tif; -this can be changed with the −o option. Each -input file is assumed to be a separate page of facsimile -data from the same document. The order in which input files -are specified on the command line is the order in which the -resultant pages appear in the output file.

    -
    - -

    OPTIONS

    - - - - - -
    -

    Options that affect the interpretation of input data -are:

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −3

    -    		 - -

    Assume input data is CCITT Group 3 -encoded (default).

    -    		 -
    - -

    −4

    -    		 - -

    Assume input data is CCITT Group 4 -encoded.

    -    		 -
    - -

    −U

    -    		 - -

    Assume input data is uncompressed (Group 3 or Group -4).

    -    		 -
    - -

    −1

    -    		 - -

    Assume input data is encoded with the 1-dimensional -version of the CCITT Group 3 Huffman encoding -algorithm (default).

    -    		 -
    - -

    −2

    -    		 - -

    Assume input data is 2-dimensional version of the -CCITT Group 3 Huffman encoding algorithm.

    -    		 -
    - -

    −P

    -    		 - -

    Assume input data is not EOL-aligned (default). -This option has effect with Group 3 encoded input only.

    -    		 -
    - -

    −A

    -    		 - -

    Assume input data is EOL-aligned. This option has effect -with Group 3 encoded input only.

    -    		 -
    - -

    −M

    -    		 - -

    Treat input data as having bits filled from most -significant bit ( MSB ) to most least bit ( -LSB ).

    -    		 -
    - -

    −L

    -    		 - -

    Treat input data as having bits filled from least -significant bit ( LSB ) to most significant -bit ( MSB ) (default).

    -    		 -
    - -

    −B

    -    		 - -

    Assume input data was encoded with black as 0 and white -as 1.

    -    		 -
    - -

    −W

    -    		 - -

    Assume input data was encoded with black as 1 and white -as 0 (default).

    -    		 -
    - -

    −R

    -    		 - -

    Specify the vertical resolution, in lines/inch, of the -input images. By default input are assumed to have a -vertical resolution of 196 lines/inch. If images are low -resolution facsimile, a value of 98 lines/inch should be -specified.

    -    		 -
    - -

    −X

    -    		 - -

    Specify the width, in pixels, of the input images. By -default input are assumed to have a width of 1728 -pixels.

    -    		 -
    - - - - - -
    -

    Options that affect the output file format are:

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −o

    -    		 - -

    Specify the name of the output file.

    -    		 -
    - -

    −7

    -    		 - -

    Force output to be compressed with the -CCITT Group 3 Huffman encoding algorithm -(default).

    -    		 -
    - -

    −8

    -    		 - -

    Force output to be compressed with the -CCITT Group 4 Huffman encoding.

    -    		 -
    - -

    −u

    -    		 - -

    Force output to be uncompressed (Group 3 or Group -4).

    -    		 -
    - -

    −5

    -    		 - -

    Force output to be encoded with the 1-dimensional -version of the CCITT Group 3 Huffman encoding -algorithm.

    -    		 -
    - -

    −6

    -    		 - -

    Force output to be encoded with the 2-dimensional -version of the CCITT Group 3 Huffman encoding -algorithm (default).

    -    		 -
    - -

    −a

    -    		 - -

    Force the last bit of each End Of Line ( -EOL ) code to land on a byte boundary -(default). This ‘‘zero padding’’ -will be reflected in the contents of the -Group3Options tag of the resultant -TIFF file. This option has effect with Group -3 encoded output only.

    -    		 -
    - -

    −p

    -    		 - -

    Do not EOL-align output. This option has effect with -Group 3 encoded output only.

    -    		 -
    - -

    −c

    -    		 - -

    Generate "classic" Group 3 TIFF format.

    -    		 -
    - -

    −f

    -    		 - -

    Generate TIFF Class F (TIFF/F) format (default).

    -    		 -
    - -

    −m

    -    		 - -

    Force output data to have bits filled from most -significant bit ( MSB ) to most least bit ( -LSB ).

    -    		 -
    - -

    −l

    -    		 - -

    Force output data to have bits filled from least -significant bit ( LSB ) to most significant -bit ( MSB ) (default).

    -    		 -
    - -

    −r

    -    		 - -

    Specify the number of rows (scanlines) in each strip of -data written to the output file. By default (or when value -0 is specified), tiffcp attempts to set the -rows/strip that no more than 8 kilobytes of data appear in a -strip (with except of G3/G4 compression schemes). If you -specify special value −1 it will results in -infinite number of the rows per strip. The entire image will -be the one strip in that case. This is default in case of -G3/G4 output compression schemes.

    -    		 -
    - -

    −s

    -    		 - -

    Stretch the input image vertically by writing each input -row of data twice to the output file.

    -    		 -
    - -

    −v

    -    		 - -

    Force fax2tiff to print the number of rows of -data it retrieved from the input file.

    -    		 -
    - -

    −z

    -    		 - -

    Force output to be compressed with the LZW encoding.

    -    		 -
    - -

    DIAGNOSTICS

    - - - - - -
    -

    The following warnings and errors come from the decoding -routines in the library.

    - -

    Warning, %s: Premature EOL at scanline %d (x -%d).\n. The input data had a row that was shorter than -the expected width. The row is padded with white.

    - -

    %s: Premature EOF at scanline %d (x %d).\n. The -decoder ran out of data in the middle of a scanline. The -resultant row is padded with white.

    - -

    %s: Bad code word at row %d, x %d\n. An invalid -Group 3 code was encountered while decoding the input -file. The row number and horizontal position is given. The -remainder of the input row is discarded, while the -corresponding output row is padded with white.

    - -

    %s: Bad 2D code word at scanline %d.\n. An invalid -Group 4 or 2D Group 3 code was encountered while -decoding the input file. The row number and horizontal -position is given. The remainder of the input row is -discarded, while the corresponding output row is padded with -white.

    -
    - -

    BUGS

    - - - - - -
    -

    Input data are assumed to have a a ‘‘top -left’’ orientation; it should be possible to -override this assumption from the command line.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    CCITT Recommendation T.4 -(Standardization of Group 3 Facsimile Apparatus for Document -Transmission).

    - -

    The Spirit of TIFF Class F, an appendix to the -TIFF 5.0 specification prepared by Cygnet Technologies.

    - -

    tiffinfo(1), tiffdither(1), -tiffgt(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/gif2tiff.1.html b/tiff/html/man/gif2tiff.1.html deleted file mode 100755 index c507353..0000000 --- a/tiff/html/man/gif2tiff.1.html +++ /dev/null @@ -1,141 +0,0 @@ - - - - - - -GIF2TIFF - - - -

    GIF2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -NOTES
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    gif2tiff − create a TIFF file from a -GIF87 format image file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    gif2tiff [ options ] input.gif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Gif2tiff converts a file in the GIF87 format to -TIFF. The TIFF image is -created as a palette image, with samples compressed with the -Lempel-Ziv & Welch algorithm (Compression=5). -These characteristics can overridden, or explicitly -specified with the options described below.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm, -−c zip for the Deflate compression algorithm, -and −c lzw for Lempel-Ziv & Welch (the -default).

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    NOTES

    - - - - - -
    -

    The program is based on Paul Haeberli’s -fromgif program which, in turn, is based on Marcel -J.E. Mol’s GIF reader.

    -
    - -

    BUGS

    - - - - - -
    -

    Should have more options to control output format.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/index.html b/tiff/html/man/index.html deleted file mode 100755 index 7e9e8d2..0000000 --- a/tiff/html/man/index.html +++ /dev/null @@ -1,64 +0,0 @@ -Libtiff HTML manpage index diff --git a/tiff/html/man/libtiff.3tiff.html b/tiff/html/man/libtiff.3tiff.html deleted file mode 100755 index 931ae94..0000000 --- a/tiff/html/man/libtiff.3tiff.html +++ /dev/null @@ -1,1150 +0,0 @@ - - - - - - -INTRO - - - -

    INTRO

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -DATA TYPES
    -LIST OF ROUTINES
    -TAG USAGE
    -PSEUDO TAGS
    -DIAGNOSTICS
    -SEE ALSO
    -BUGS
    - -
    - -

    NAME

    - - - - - -
    -

    libtiff − introduction to libtiff, a -library for reading and writing TIFF -files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    #include <tiffio.h>

    - -

    cc file.c -ltiff

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    libtiff is a library for reading and writing -data files encoded with the Tag Image File format, -Revision 6.0 (or revision 5.0 or revision 4.0). This file -format is suitable for archiving multi-color and -monochromatic image data.

    - -

    The library supports several compression algorithms, -as indicated by the Compression field, including: no -compression (1), CCITT 1D Huffman compression -(2), CCITT Group 3 Facsimile compression -(3), CCITT Group 4 Facsimile compression (4), -Lempel-Ziv & Welch compression (5), baseline JPEG -compression (7), word-aligned 1D Huffman compression -(32771), and PackBits compression (32773). In addition, -several nonstandard compression algorithms are supported: -the 4-bit compression algorithm used by the -ThunderScan program (32809) (decompression only), -NeXT’s 2-bit compression algorithm (32766) -(decompression only), an experimental LZ-style algorithm -known as Deflate (32946), and an experimental CIE LogLuv -compression scheme designed for images with high dynamic -range (32845 for LogL and 32845 for LogLuv). Directory -information may be in either little- or big-endian byte -order−byte swapping is automatically done by the -library. Data bit ordering may be either Most Significant -Bit ( MSB ) to Least Significant Bit ( LSB -) or LSB to MSB. Finally, the -library does not support files in which the -BitsPerSample, Compression, -MinSampleValue, or MaxSampleValue fields are -defined differently on a per-sample basis (in Rev. 6.0 the -Compression tag is not defined on a per-sample basis, -so this is immaterial).

    -
    - -

    DATA TYPES

    - - - - - -
    -

    The library makes extensive use of C typedefs to -promote portability. Two sets of typedefs are used, one for -communication with clients of the library and one for -internal data structures and parsing of the TIFF -format. The following typedefs are exposed to users -either through function definitions or through parameters -passed through the varargs interfaces.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    typedef unsigned short uint16;

    -    		 - -

    16-bit unsigned integer

    -
    - -

    typedef unsigned <thing> -uint32;

    -    		 - -

    32-bit unsigned integer

    -
    - -

    typedef unsigned int ttag_t;

    -    		 - -

    directory tag

    -
    - -

    typedef uint16 tdir_t;

    -    		 - -

    directory index

    -
    - -

    typedef uint16 tsample_t;

    -    		 - -

    sample number

    -
    - -

    typedef uint32 tstrip_t;

    -    		 - -

    strip number

    -
    - -

    typedef uint32 ttile_t;

    -    		 - -

    tile number

    -
    - -

    typedef int32 tsize_t;

    -    		 - -

    i/o size in bytes

    -
    - -

    typedef void* tdata_t;

    -    		 - -

    image data ref

    -
    - -

    typedef void* thandle_t;

    -    		 - -

    client data handle

    -
    - -

    typedef int32 toff_t;

    -    		 - -

    file offset

    -
    - - - - - -
    -

    Note that tstrip_t, ttile_t, and -tsize_t are constrained to be no more than 32-bit -quantities by 32-bit fields they are stored in in the -TIFF image. Likewise tsample_t is limited by the -16-bit field used to store the SamplesPerPixel tag. -tdir_t constrains the maximum number of IFDs -that may appear in an image and may be an arbitrary -size (w/o penalty). ttag_t must be either int, -unsigned int, pointer, or double because the library uses a -varargs interface and ANSI C restricts the type -of the parameter before an ellipsis to be a promoted type. -toff_t is defined as int32 because TIFF file offsets -are (unsigned) 32-bit quantities. A signed value is used -because some interfaces return −1 on error. Finally, -note that user-specified data references are passed as -opaque handles and only cast at the lowest layers where -their type is presumed.

    -
    - -

    LIST OF ROUTINES

    - - - - - -
    -

    The following routines are part of the library. -Consult specific manual pages for details on their -operation; on most systems doing ‘‘man -function-name’’ will work.

    - - -

    Name Description

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    TIFFCheckpointDirectory

    -    		 - -

    writes the current state of the directory

    -
    - -

    TIFFCheckTile

    -    		 - -

    very x,y,z,sample is within image

    -
    - -

    TIFFCIELabToRGBInit

    -    		 - -

    initialize CIE L*a*b* 1976 to RGB conversion -state

    -
    - -

    TIFFCIELabToXYZ

    -    		 - -

    perform CIE L*a*b* 1976 to CIE XYZ -conversion

    -
    - -

    TIFFClientOpen

    -    		 - -

    open a file for reading or writing

    -
    - -

    TIFFClose

    -    		 - -

    close an open file

    -
    - -

    TIFFComputeStrip

    -    		 - -

    return strip containing y,sample

    -
    - -

    TIFFComputeTile

    -    		 - -

    return tile containing x,y,z,sample

    -
    - -

    TIFFCurrentDirectory

    -    		 - -

    return index of current directory

    -
    - -

    TIFFCurrentRow

    -    		 - -

    return index of current scanline

    -
    - -

    TIFFCurrentStrip

    -    		 - -

    return index of current strip

    -
    - -

    TIFFCurrentTile

    -    		 - -

    return index of current tile

    -
    - -

    TIFFDataWidth

    -    		 - -

    return the size of TIFF data types

    -
    - -

    TIFFError

    -    		 - -

    library error handler

    -
    - -

    TIFFFdOpen

    -    		 - -

    open a file for reading or writing

    -
    - -

    TIFFFileName

    -    		 - -

    return name of open file

    -
    - -

    TIFFFileno

    -    		 - -

    return open file descriptor

    -
    - -

    TIFFFindCODEC

    -    		 - -

    find standard codec for the specific -scheme

    -
    - -

    TIFFFlush

    -    		 - -

    flush all pending writes

    -
    - -

    TIFFFlushData

    -    		 - -

    flush pending data writes

    -
    - -

    TIFFGetBitRevTable

    -    		 - -

    return bit reversal table

    -
    - -

    TIFFGetField

    -    		 - -

    return tag value in current directory

    -
    - -

    TIFFGetFieldDefaulted

    -    		 - -

    return tag value in current directory

    -
    - -

    TIFFGetMode

    -    		 - -

    return open file mode

    -
    - -

    TIFFGetVersion

    -    		 - -

    return library version string

    -
    - -

    TIFFIsCODECConfigured

    -    		 - -

    check, whether we have working codec

    -
    - -

    TIFFIsMSB2LSB

    -    		 - -

    return true if image data is being -returned

    -
    - -

    with bit 0 as the most significant bit

    -
    - -

    TIFFIsTiled

    -    		 - -

    return true if image data is tiled

    -
    - -

    TIFFIsByteSwapped

    -    		 - -

    return true if image data is byte-swapped

    -
    - -

    TIFFNumberOfStrips

    -    		 - -

    return number of strips in an image

    -
    - -

    TIFFNumberOfTiles

    -    		 - -

    return number of tiles in an image

    -
    - -

    TIFFOpen

    -    		 - -

    open a file for reading or writing

    -
    - -

    TIFFPrintDirectory

    -    		 - -

    print description of the current -directory

    -
    - -

    TIFFReadBufferSetup

    -    		 - -

    specify i/o buffer for reading

    -
    - -

    TIFFReadDirectory

    -    		 - -

    read the next directory

    -
    - -

    TIFFReadEncodedStrip

    -    		 - -

    read and decode a strip of data

    -
    - -

    TIFFReadEncodedTile

    -    		 - -

    read and decode a tile of data

    -
    - -

    TIFFReadRawStrip

    -    		 - -

    read a raw strip of data

    -
    - -

    TIFFReadRawTile

    -    		 - -

    read a raw tile of data

    -
    - -

    TIFFReadRGBAImage

    -    		 - -

    read an image into a fixed format raster

    -
    - -

    TIFFReadScanline

    -    		 - -

    read and decode a row of data

    -
    - -

    TIFFReadTile

    -    		 - -

    read and decode a tile of data

    -
    - -

    TIFFRegisterCODEC

    -    		 - -

    override standard codec for the specific -scheme

    -
    - -

    TIFFReverseBits

    -    		 - -

    reverse bits in an array of bytes

    -
    - -

    TIFFRGBAImageBegin

    -    		 - -

    setup decoder state for TIFFRGBAImageGet

    -
    - -

    TIFFRGBAImageEnd

    -    		 - -

    release TIFFRGBAImage decoder state

    -
    - -

    TIFFRGBAImageGet

    -    		 - -

    read and decode an image

    -
    - -

    TIFFRGBAImageOK

    -    		 - -

    is image readable by TIFFRGBAImageGet

    -
    - -

    TIFFScanlineSize

    -    		 - -

    return size of a scanline

    -
    - -

    TIFFSetDirectory

    -    		 - -

    set the current directory

    -
    - -

    TIFFSetSubDirectory

    -    		 - -

    set the current directory

    -
    - -

    TIFFSetErrorHandler

    -    		 - -

    set error handler function

    -
    - -

    TIFFSetField

    -    		 - -

    set a tag’s value in the current -directory

    -
    - -

    TIFFSetWarningHandler

    -    		 - -

    set warning handler function

    -
    - -

    TIFFStripSize

    -    		 - -

    returns size of a strip

    -
    - -

    TIFFRawStripSize

    -    		 - -

    returns the number of bytes in a raw -strip

    -
    - -

    TIFFSwabShort

    -    		 - -

    swap bytes of short

    -
    - -

    TIFFSwabLong

    -    		 - -

    swap bytes of long

    -
    - -

    TIFFSwabArrayOfShort

    -    		 - -

    swap bytes of an array of shorts

    -
    - -

    TIFFSwabArrayOfLong

    -    		 - -

    swap bytes of an array of longs

    -
    - -

    TIFFTileRowSize

    -    		 - -

    return size of a row in a tile

    -
    - -

    TIFFTileSize

    -    		 - -

    return size of a tile

    -
    - -

    TIFFUnRegisterCODEC

    -    		 - -

    unregisters the codec

    -
    - -

    TIFFVGetField

    -    		 - -

    return tag value in current directory

    -
    - -

    TIFFVGetFieldDefaulted

    -    		 - -

    return tag value in current directory

    -
    - -

    TIFFVSetField

    -    		 - -

    set a tag’s value in the current -directory

    -
    - -

    TIFFVStripSize

    -    		 - -

    returns the number of bytes in a strip

    -
    - -

    TIFFWarning

    -    		 - -

    library warning handler

    -
    - -

    TIFFWriteDirectory

    -    		 - -

    write the current directory

    -
    - -

    TIFFWriteEncodedStrip

    -    		 - -

    compress and write a strip of data

    -
    - -

    TIFFWriteEncodedTile

    -    		 - -

    compress and write a tile of data

    -
    - -

    TIFFWriteRawStrip

    -    		 - -

    write a raw strip of data

    -
    - -

    TIFFWriteRawTile

    -    		 - -

    write a raw tile of data

    -
    - -

    TIFFWriteScanline

    -    		 - -

    write a scanline of data

    -
    - -

    TIFFWriteTile

    -    		 - -

    compress and write a tile of data

    -
    - -

    TIFFXYZToRGB

    -    		 - -

    perform CIE XYZ to RGB conversion

    -
    - -

    TIFFYCbCrToRGBInit

    -    		 - -

    initialize YCbCr to RGB conversion state

    -
    - -

    TIFFYCbCrtoRGB

    -    		 - -

    perform YCbCr to RGB conversion

    -
    - - - - - -
    -

    Auxiliary functions:

    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    _TIFFfree

    -    		 - -

    free memory buffer

    -
    - -

    _TIFFmalloc

    -    		 - -

    dynamically allocate memory buffer

    -
    - -

    _TIFFmemcmp

    -    		 - -

    compare contents of the memory buffers

    -
    - -

    _TIFFmemcpy

    -    		 - -

    copy contents of the one buffer to -another

    -
    - -

    _TIFFmemset

    -    		 - -

    fill memory buffer with a constant byte

    -
    - -

    _TIFFrealloc

    -    		 - -

    dynamically reallocate memory buffer

    -
    - -

    TAG USAGE

    - - - - -
    -

    The table below lists the TIFF tags that -are recognized and handled by the library. If no use is -indicated in the table, then the library reads and writes -the tag, but does not use it internally. Note that some tags -are meaningful only when a particul \ No newline at end of file diff --git a/tiff/html/man/pal2rgb.1.html b/tiff/html/man/pal2rgb.1.html deleted file mode 100755 index d06ddb6..0000000 --- a/tiff/html/man/pal2rgb.1.html +++ /dev/null @@ -1,189 +0,0 @@ - - - - - - -PAL2RGB - - - -

    PAL2RGB

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    pal2rgb − convert a palette color -TIFF image to a full color image

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    pal2rgb [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Pal2rgb converts a palette color -TIFF image to a full color image by applying -the colormap of the palette image to each sample to generate -a full color RGB image.

    -
    - -

    OPTIONS

    - - - - - -
    -

    Options that affect the interpretation of input data -are:

    -
    - - - - - - - - -
    - -

    −C

    -    		 - -

    This option overrides the default behavior of -pal2rgb in determining whether or not colormap -entries contain 16-bit or 8-bit values. By default the -colormap is inspected and if no colormap entry greater than -255 is found, the colormap is assumed to have only 8-bit -values; otherwise 16-bit values (as required by the -TIFF specification) are assumed. The -−C option can be used to explicitly specify the -number of bits for colormap entries: −C 8 for -8-bit values, −C 16 for 16-bit values.

    -    		 -
    - - - - - -
    -

    Options that affect the output file format are:

    -
    - - - - - - - - - - - - - - - - - - - - -
    - -

    −p

    -    		 - -

    Explicitly select the planar configuration used in -organizing data samples in the output image: −p -contig for samples packed contiguously, and −p -separate for samples stored separately. By default -samples are packed.

    -    		 -
    - -

    −c

    -    		 - -

    Use the specific compression algorithm to encoded image -data in the output file: −c packbits for -Macintosh Packbits, −c lzw for Lempel-Ziv & -Welch, −c zip for Deflate, −c none -for no compression. If no compression-related option is -specified, the input file’s compression algorithm is -used.

    -    		 -
    - -

    −r

    -    		 - -

    Explicitly specify the number of rows in each strip of -the output file. If the −r option is not -specified, a number is selected such that each output strip -has approximately 8 kilobytes of data in it.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    Only 8-bit images are handled.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/ppm2tiff.1.html b/tiff/html/man/ppm2tiff.1.html deleted file mode 100755 index e3c664e..0000000 --- a/tiff/html/man/ppm2tiff.1.html +++ /dev/null @@ -1,141 +0,0 @@ - - - - - - -PPM2TIFF - - - -

    PPM2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    ppm2tiff − create a TIFF file from -PPM, PGM and PBM image -files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    ppm2tiff [ options ] [ input.ppm ] -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    ppm2tiff converts a file in the PPM, -PGM and PBM image formats to -TIFF. By default, the TIFF -image is created with data samples packed -(PlanarConfiguration=1), compressed with the Packbits -algorithm (Compression=32773), and with each strip no -more than 8 kilobytes. These characteristics can be -overridden, or explicitly specified with the options -described below

    - -

    If the PPM file contains greyscale data, -then the PhotometricInterpretation tag is set to 1 -(min-is-black), otherwise it is set to 2 (RGB).

    - -

    If no PPM file is specified on the command -line, ppm2tiff will read from the standard input.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: none for no compression, packbits for -PackBits compression (will be used by default), lzw -for Lempel-Ziv & Welch compression, jpeg for -baseline JPEG compression, zip for Deflate -compression, g3 for CCITT Group 3 (T.4) compression, -and g4 for CCITT Group 4 (T.6) compression.

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    −R

    -    		 - -

    Mark the resultant image to have the specified X and Y -resolution (in dots/inch).

    -    		 -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/ras2tiff.1.html b/tiff/html/man/ras2tiff.1.html deleted file mode 100755 index 2c652ab..0000000 --- a/tiff/html/man/ras2tiff.1.html +++ /dev/null @@ -1,139 +0,0 @@ - - - - - - -RAS2TIFF - - - -

    RAS2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    ras2tiff − create a TIFF file from a -Sun rasterfile

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    ras2tiff [ options ] input.ras -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    ras2tiff converts a file in the Sun rasterfile -format to TIFF. By default, the -TIFF image is created with data samples -packed (PlanarConfiguration=1), compressed with the -Lempel-Ziv & Welch algorithm (Compression=5), and -with each strip no more than 8 kilobytes. These -characteristics can overridden, or explicitly specified with -the options described below.

    - -

    Any colormap information in the rasterfile is carried -over to the TIFF file by including a -Colormap tag in the output file. If the rasterfile -has a colormap, the PhotometricInterpretation tag is -set to 3 (palette); otherwise it is set to 2 (RGB) if the -depth is 24 or 1 (min-is-black) if the depth is not 24.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm, -−c jpeg for the baseline JPEG compression -algorithm, −c zip for the Deflate compression -algorithm, and −c lzw for Lempel-Ziv & -Welch (the default).

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    Does not handle all possible rasterfiles. In particular, -ras2tiff does not handle run-length encoded -images.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/raw2tiff.1.html b/tiff/html/man/raw2tiff.1.html deleted file mode 100755 index ce47e9f..0000000 --- a/tiff/html/man/raw2tiff.1.html +++ /dev/null @@ -1,510 +0,0 @@ - - - - - - -RAW2TIFF - - - -

    RAW2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -GUESSING THE IMAGE GEOMETRY
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    raw2tiff − create a TIFF file from a -raw data

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    raw2tiff [ options ] input.raw -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    raw2tiff converts a raw byte sequence into -TIFF. By default, the TIFF -image is created with data samples packed -(PlanarConfiguration=1), compressed with the PackBits -algorithm (Compression=32773), and with each strip no -more than 8 kilobytes. These characteristics can overridden, -or explicitly specified with the options described -below.

    -
    - -

    OPTIONS

    - - - - - -
    -

    −H number

    - - - - - -
    -

    size of input image file header in bytes (0 by default). -This amount of data just will be skipped from the start of -file while reading.

    -
    - - - - - -
    -

    −w number

    - - - - - -
    -

    width of input image in pixels (can be guessed, see -GUESSING THE IMAGE GEOMETRY -below).

    -
    - - - - - -
    -

    −l number

    - - - - - -
    -

    length of input image in lines (can be guessed, see -GUESSING THE IMAGE GEOMETRY -below).

    -
    - - - - - -
    -

    −b number

    - - - - - -
    -

    number of bands in input image (1 by default).

    -
    - - - - - -
    -

    −d data_type

    - - - - - -
    -

    type of samples in input image, where data_type -may be:

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    byte

    -    		 - -

    8-bit unsigned integer (default),

    -
    - -

    short

    -    		 - -

    16-bit unsigned integer,

    -
    - -

    long

    -    		 - -

    32-bit unsigned integer,

    -
    - -

    sbyte

    -    		 - -

    8-bit signed integer,

    -
    - -

    sshort

    -    		 - -

    16-bit signed integer,

    -
    - -

    slong

    -    		 - -

    32-bit signed integer,

    -
    - -

    float

    -    		 - -

    32-bit IEEE floating point,

    -
    - -

    double

    -    		 - -

    64-bit IEEE floating point.

    -
    - - - - - -
    -

    −i config

    - - - - - -
    -

    type of samples interleaving in input image, where -config may be:

    - - - - - - - - - - -
    - -

    pixel

    -    		 - -

    pixel interleaved data (default),

    -
    - -

    band

    -    		 - -

    band interleaved data.

    -
    - - - - - -
    -

    −p photo

    - - - - - -
    -

    photometric interpretation (color space) of the input -image, where photo may be:

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    miniswhite

    -    		 - -

    white color represented with 0 value,

    -
    - -

    minisblack

    -    		 - -

    black color represented with 0 value (default),

    -
    - -

    rgb

    -    		 - -

    image has RGB color model,

    -
    - -

    cmyk

    -    		 - -

    image has CMYK (separated) color model,

    -
    - -

    ycbcr

    -    		 - -

    image has YCbCr color model,

    -
    - -

    cielab

    -    		 - -

    image has CIE L*a*b color model,

    -
    - -

    icclab

    -    		 - -

    image has ICC L*a*b color model,

    -
    - -

    itulab

    -    		 - -

    image has ITU L*a*b color model.

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −s

    -    		 - -

    swap bytes fetched from the input file.

    -    		 -
    - -

    −L

    -    		 - -

    input data has LSB2MSB bit order (default).

    -    		 -
    - -

    −M

    -    		 - -

    input data has MSB2LSB bit order.

    -    		 -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm (the -default), −c jpeg for the baseline JPEG -compression algorithm, −c zip for the Deflate -compression algorithm, and −c lzw for -Lempel-Ziv & Welch.

    -    		 -
    - - - - - -
    -

    −r number

    - - - - - -
    -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -
    - -

    GUESSING THE IMAGE GEOMETRY

    - - - - - -
    -

    raw2tiff can guess image width and height in case -one or both of these parameters are not specified. If you -omit one of those parameters, the complementary one will be -calculated based on the file size (taking into account -header size, number of bands and data type). If you omit -both parameters, the statistical approach will be used. -Utility will compute correlation coefficient between two -lines at the image center using several appropriate line -sizes and the highest absolute value of the coefficient will -indicate the right line size. That is why you should be -cautious with the very large images, because guessing -process may take a while (depending on your system -performance). Of course, the utility can’t guess the -header size, number of bands and data type, so it should be -specified manually. If you don’t know anything about -your image, just try with the several combinations of those -options.

    - -

    There is no magic, it is just a mathematical statistics, -so it can be wrong in some cases. But for most ordinary -images guessing method will work fine.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/rgb2ycbcr.1.html b/tiff/html/man/rgb2ycbcr.1.html deleted file mode 100755 index dcd88d1..0000000 --- a/tiff/html/man/rgb2ycbcr.1.html +++ /dev/null @@ -1,155 +0,0 @@ - - - - - - -RGB2YCBCR - - - -

    RGB2YCBCR

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    rgb2ycbcr − convert non-YCbCr TIFF -images to a YCbCr TIFF image

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    rgb2ycbcr [ options ] src1.tif src2.tif -... dst.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    rgb2ycbcr converts RGB color, -greyscale, or bi-level TIFF images to YCbCr -images by transforming and sampling pixel data. If multiple -files are specified on the command line each source file is -converted to a separate directory in the destination -file.

    - -

    By default, chrominance samples are created by sampling 2 -by 2 blocks of luminance values; this can be changed with -the −h and −v options. Output data -are compressed with the PackBits compression -scheme, by default; an alternate scheme can be selected with -the −c option. By default, output data are -compressed in strips with the number of rows in each strip -selected so that the size of a strip is never more than 8 -kilobytes; the −r option can be used to -explicitly set the number of rows per strip.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm (the -default), −c jpeg for the JPEG compression -algorithm, −c zip for the deflate compression -algorithm, and −c lzw for Lempel-Ziv & -Welch.

    -    		 -
    - -

    −h

    -    		 - -

    Set the horizontal sampling dimension to one of: 1, 2 -(default), or 4.

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    −v

    -    		 - -

    Set the vertical sampling dimension to one of: 1, 2 -(default), or 4.

    -    		 -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffinfo(1), tiffcp(1), -libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff

    -
    -
    - - diff --git a/tiff/html/man/sgi2tiff.1.html b/tiff/html/man/sgi2tiff.1.html deleted file mode 100755 index 7665a6e..0000000 --- a/tiff/html/man/sgi2tiff.1.html +++ /dev/null @@ -1,147 +0,0 @@ - - - - - - -SGI2TIFF - - - -

    SGI2TIFF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    sgi2tiff − create a TIFF file from -an SGI image file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    sgi2tiff [ options ] input.rgb -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    sgi2tiff converts a file in the SGI -image format to TIFF. By default, the -TIFF image is created with data samples -packed (PlanarConfiguration=1), compressed with the -Lempel-Ziv & Welch algorithm (Compression=5), and -with each strip no more than 8 kilobytes. These -characteristics can overridden, or explicitly specified with -the options described below.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm), -−c jpeg for the baseline JPEG compression -algorithm, −c zip for the Deflate compression -algorithm, and −c lzw for Lempel-Ziv & -Welch (the default).

    -    		 -
    - -

    −p

    -    		 - -

    Explicitly select the planar configuration used in -organizing data samples in the output image: −p -contig for samples packed contiguously, and −p -separate for samples stored separately. By default -samples are packed.

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    Does not record colormap information.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/thumbnail.1.html b/tiff/html/man/thumbnail.1.html deleted file mode 100755 index 2d1f3c9..0000000 --- a/tiff/html/man/thumbnail.1.html +++ /dev/null @@ -1,148 +0,0 @@ - - - - - - -THUMBNAIL - - - -

    THUMBNAIL

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    thumbnail − create a TIFF file with -thumbnail images

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    thumbnail [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    thumbnail is a program written to show how one -might use the SubIFD tag (#330) to store thumbnail images. -thumbnail copies a TIFF Class F -facsimile file to the output file and for each image an -8-bit greyscale thumbnail sketch. The output file -contains the thumbnail image with the associated -full-resolution page linked below with the SubIFD tag.

    - -

    By default, thumbnail images are 216 pixels wide by 274 -pixels high. Pixels are calculated by sampling and filtering -the input image with each pixel value passed through a -contrast curve.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - -
    - -

    −w

    -    		 - -

    Specify the width of thumbnail images in pixels.

    -    		 -
    - -

    −h

    -    		 - -

    Specify the height of thumbnail images in pixels.

    -    		 -
    - -

    −c

    -    		 - -

    Specify a contrast curve to apply in generating the -thumbnail images. By default pixels values are passed -through a linear contrast curve that simply maps the pixel -value ranges. Alternative curves are: exp50 for a 50% -exponential curve, exp60 for a 60% exponential curve, -exp70 for a 70% exponential curve, exp80 for a -80% exponential curve, exp90 for a 90% exponential -curve, exp for a pure exponential curve, -linear for a linear curve.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    There are no options to control the format of the saved -thumbnail images.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffdump(1), tiffgt(1), tiffinfo(1), -libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiff2bw.1.html b/tiff/html/man/tiff2bw.1.html deleted file mode 100755 index 1ebb4d3..0000000 --- a/tiff/html/man/tiff2bw.1.html +++ /dev/null @@ -1,161 +0,0 @@ - - - - - - -TIFF2BW - - - -

    TIFF2BW

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiff2bw − convert a color TIFF image -to greyscale

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiff2bw [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Tiff2bw converts an RGB or Palette -color TIFF image to a greyscale image by -combining percentages of the red, green, and blue channels. -By default, output samples are created by taking 28% of the -red channel, 59% of the green channel, and 11% of the blue -channel. To alter these percentages, the −R, -−G, and −B options may be -used.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression, −c -packbits for the PackBits compression algorithm, -−c zip for the Deflate compression algorithm, -−c g3 for the CCITT Group 3 compression -algorithm, −c g4 for the CCITT Group 4 -compression algorithm, and −c lzw for -Lempel-Ziv & Welch (the default).

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    −R

    -    		 - -

    Specify the percentage of the red channel to use -(default 28).

    -    		 -
    - -

    −G

    -    		 - -

    Specify the percentage of the green channel to use -(default 59).

    -    		 -
    - -

    −B

    -    		 - -

    Specify the percentage of the blue channel to use -(default 11).

    -    		 -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiff2pdf.1.html b/tiff/html/man/tiff2pdf.1.html deleted file mode 100755 index 3b6dd4b..0000000 --- a/tiff/html/man/tiff2pdf.1.html +++ /dev/null @@ -1,609 +0,0 @@ - - - - - - -TIFF2PDF - - - -

    TIFF2PDF

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -EXAMPLES
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiff2pdf − convert a TIFF image to a PDF -document

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiff2pdf [ options ] input.tiff

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiff2pdf opens a TIFF image and writes a PDF -document to standard output.

    - -

    The program converts one TIFF file to one PDF file, -including multiple page TIFF files, tiled TIFF files, black -and white. grayscale, and color TIFF files that contain data -of TIFF photometric interpretations of bilevel, grayscale, -RGB, YCbCr, CMYK separation, and ICC L*a*b* as supported by -libtiff and PDF.

    - -

    If you have multiple TIFF files to convert into one PDF -file then use tiffcp or other program to concatenate -the files into a multiple page TIFF file. If the input TIFF -file is of huge dimensions (greater than 10000 pixels height -or width) convert the input image to a tiled TIFF if it is -not already.

    - -

    The standard output is standard output. Set the output -file name with the −o output.pdf -option.

    - -

    All black and white files are compressed into a single -strip CCITT G4 Fax compressed PDF, unless tiled, where tiled -black and white images are compressed into tiled CCITT G4 -Fax compressed PDF, libtiff CCITT support is -assumed.

    - -

    Color and grayscale data can be compressed using either -JPEG compression, ITU-T T.81, or Zip/Deflate LZ77 -compression. Set the compression type using the -−j or −z options. JPEG compression -support requires that libtiff be configured with JPEG -support, and Zip/Deflate compression support requires that -libtiff be configured with Zip support, in -tiffconf.h. Use only one or the other of −j and -−z.

    - -

    If the input TIFF contains single strip CCITT G4 Fax -compressed information, then that is written to the PDF file -without transcoding, unless the options of no compression -and no passthrough are set, −d and -−n.

    - -

    If the input TIFF contains JPEG or single strip -Zip/Deflate compressed information, and they are configured, -then that is written to the PDF file without transcoding, -unless the options of no compression and no passthrough are -set.

    - -

    The default page size upon which the TIFF image is placed -is determined by the resolution and extent of the image -data. Default values for the TIFF image resolution can be -set using the −x and −y options. -The page size can be set using the −p option -for paper size, or −w and −l for -paper width and length, then each page of the TIFF image is -centered on its page. The distance unit for default -resolution and page width and length can be set by the -−u option, the default unit is inch.

    - -

    Various items of the output document information can be -set with the −e, −c, -−a, −t, −s, and -−k options. Setting the argument of the option -to "" for these tags causes the relevant document -information field to be not written. Some of the document -information values otherwise get their information from the -input TIFF image, the software, author, document name, and -image description.

    - -

    The Portable Document Format (PDF) specification is -copyrighted by Adobe Systems, Incorporated.

    -
    - -

    OPTIONS

    - - - - - -
    -

    −o output-file

    - - - - - -
    -

    Set the output to go to file. output-file

    -
    - - - - - - - - - - - - -
    - -

    −j

    -    		 - -

    Compress with JPEG (requires libjpeg configured -with libtiff).

    -
    - -

    −z

    -    		 - -

    Compress with Zip/Deflate (requires zlib -configured with libtiff).

    -
    - - - - - -
    -

    −q quality

    - - - - - -
    -

    Set the compression quality, 1-100 for JPEG.

    -
    - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −n

    -    		 - -

    Do not allow data to be converted without uncompressing, -no compressed data passthrough.

    -
    - -

    −b

    -    		 - -

    Set PDF ‘‘Interpolate’’ user -preference.

    -
    - -

    −d

    -    		 - -

    Do not compress (decompress).

    -
    - -

    −i

    -    		 - -

    Invert colors.

    -
    - - - - - -
    -

    −p paper-size

    - - - - - -
    -

    Set paper size, e.g., letter, legal, -A4.

    -
    - - - - - -
    -

    −u [i|m]

    - - - - - -
    -

    Set distance unit, i for inch, m for -centimeter.

    -
    - - - - - -
    -

    −w width

    - - - - - -
    -

    Set width in units.

    -
    - - - - - -
    -

    −l length

    - - - - - -
    -

    Set length in units.

    -
    - - - - - -
    -

    −x xres

    - - - - - -
    -

    Set x/width resolution default.

    -
    - - - - - -
    -

    −y yres

    - - - - - -
    -

    Set y/length resolution default.

    -
    - - - - - -
    -

    −r [d|o]

    - - - - - -
    -

    Set d for resolution default for images without -resolution, o for resolution override for all -images.

    -
    - - - - - - - - -
    - -

    −f

    -    		 - -

    Set PDF ‘‘Fit Window’’ user -preference.

    -    		 -
    - - - - - -
    -

    −e YYYYMMDDHHMMSS

    - - - - - -
    -

    Set document information date, overrides image or current -date/time default, YYYYMMDDHHMMSS.

    -
    - - - - - -
    -

    −c creator

    - - - - - -
    -

    Set document information creator, overrides image -software default.

    -
    - - - - - -
    -

    −a author

    - - - - - -
    -

    Set document information author, overrides image artist -default.

    -
    - - - - - -
    -

    −t title

    - - - - - -
    -

    Set document information title, overrides image document -name default.

    -
    - - - - - -
    -

    −s subject

    - - - - - -
    -

    Set document information subject, overrides image image -description default.

    -
    - - - - - -
    -

    −k keywords

    - - - - - -
    -

    Set document information keywords.

    -
    - - - - - - - - -
    - -

    −h

    -    		 - -

    List usage reminder to stderr and exit.

    -    		 -
    - -

    EXAMPLES

    - - - - - -
    -

    The following example would generate the file output.pdf -from input.tiff.

    - - - - - -
    -
    tiff2pdf −o output.pdf input.tiff
-
    -
    - - - - - - -
    -

    The following example would generate PDF output from -input.tiff and write it to standard output.

    - - - - - -
    -
    tiff2pdf input.tiff
-
    -
    - - - - - - -
    -

    The following example would generate the file output.pdf -from input.tiff, putting the image pages on a letter sized -page, compressing the output with JPEG, with JPEG quality -75, setting the title to -‘‘Document’’, and setting the -‘‘Fit Window’’ option.

    - - - - - -
    -
    tiff2pdf −p letter −j −q 75 −t "Document" −f −o output.pdf input.tiff
-
    -
    - -

    BUGS

    - - - - - - -
    -

    Please report bugs via the web interface at

    -
    - - - - - -
    - -

    http://bugzilla.remotesensing.org/enter_bug.cgi?product=libtiff

    -
    - -

    SEE ALSO

    - - - - - -
    -

    libtiff(3), tiffcp(1), -tiff2ps(1)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiff2ps.1.html b/tiff/html/man/tiff2ps.1.html deleted file mode 100755 index 7e2ce15..0000000 --- a/tiff/html/man/tiff2ps.1.html +++ /dev/null @@ -1,639 +0,0 @@ - - - - - - -TIFF2PS - - - -

    TIFF2PS

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -EXAMPLES
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiff2ps − convert a TIFF image to -PostScript™

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiff2ps [ options ] input.tif -...

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiff2ps reads TIFF images and -writes PostScript or Encapsulated PostScript (EPS) on the -standard output. By default, tiff2ps writes -Encapsulated PostScript for the first image in the specified -TIFF image file.

    - -

    By default, tiff2ps will generate PostScript that -fills a printed area specified by the TIFF -tags in the input file. If the file does not contain -XResolution or YResolution tags, then the -printed area is set according to the image dimensions. The -−w and −h options (see below) can -be used to set the dimensions of the printed area in inches; -overriding any relevant TIFF tags.

    - -

    The PostScript generated for RGB, palette, -and CMYK images uses the colorimage -operator. The PostScript generated for greyscale and bilevel -images uses the image operator. When the -colorimage operator is used, PostScript code to -emulate this operator on older PostScript printers is also -generated. Note that this emulation code can be very -slow.

    - -

    Color images with associated alpha data are composited -over a white background.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −1

    -    		 - -

    Generate PostScript Level 1 (the default).

    -    		 -
    - -

    −2

    -    		 - -

    Generate PostScript Level 2.

    -    		 -
    - -

    −3

    -    		 - -

    Generate PostScript Level 3. It basically allows one to -use the /flateDecode filter for ZIP compressed TIFF -images.

    -    		 -
    - -

    −8

    -    		 - -

    Disable use of ASCII85 encoding with PostScript Level 2/3.

    -    		 -
    - -

    −a

    -    		 - -

    Generate output for all IFDs (pages) in the input -file.

    -    		 -
    - -

    −b

    -    		 - -

    Specify the bottom margin for the output (in inches). -This does not affect the height of the printed image.

    -    		 -
    - -

    −c

    -    		 - -

    Center the image in the output. This option only shows -an effect if both the −w and the -−h option are given.

    -    		 -
    - -

    −C

    -    		 - -

    Specify the document creator name.

    -    		 -
    - -

    −d

    -    		 - -

    Set the initial TIFF directory to the -specified directory number. (NB: Directories are numbered -starting at zero.) This option is useful for selecting -individual pages in a multi-page (e.g. facsimile) file.

    -    		 -
    - -

    −D

    -    		 - -

    Enable duplex printing (two pages per sheet of paper).

    -    		 -
    - -

    −e

    -    		 - -

    Force the generation of Encapsulated PostScript (implies -−z).

    -    		 -
    - -

    −h

    -    		 - -

    Specify the vertical size of the printed area (in -inches).

    -    		 -
    - -

    −H

    -    		 - -

    Specify the maximum height of image (in inches). Images -with larger sizes will be split in several pages. Option -−L may be used for specifying size of split -images overlapping.

    -    		 -
    - -

    −i

    -    		 - -

    Enable/disable pixel interpolation. This option requires -a single numeric value: zero to disable pixel interpolation -and non-zero to enable. The default is enabled.

    -    		 -
    - -

    −L

    -    		 - -

    Specify the size of overlapping for split images (in -inches). Used in conjunction with −H and −W -options.

    -    		 -
    - -

    −l

    -    		 - -

    Specify the left margin for the output (in inches). This -does not affect the width of the printed image.

    -    		 -
    - -

    −m

    -    		 - -

    Where possible render using the imagemask -PostScript operator instead of the image operator. -When this option is specified tiff2ps will use -imagemask for rendering 1 bit deep images. If this -option is not specified or if the image depth is greater -than 1 then the image operator is used.

    -    		 -
    - -

    −o

    -    		 - -

    Set the initial TIFF directory to the -IFD at the specified file offset. This option -is useful for selecting thumbnail images and the like which -are hidden using the SubIFD tag.

    -    		 -
    - -

    −O

    -    		 - -

    Write PostScript to specified file instead of standard output.

    -    		 -
    - -

    −p

    -    		 - -

    Force the generation of (non-Encapsulated) -PostScript.

    -    		 -
    - -

    −P

    -    		 - -

    Set optional PageOrientation DSC comment to Landscape or Portrait.

    -    		 -
    - -

    −r

    -    		 - -

    Rotate image by 180 degrees.

    -    		 -
    - -

    −s

    -    		 - -

    Generate output for a single IFD (page) in the input -file.

    -    		 -
    - -

    −t

    -    		 - -

    Specify the document title string.

    -    		 -
    - -

    −T

    -    		 - -

    Print pages for top edge binding.

    -    		 -
    - -

    −w

    -    		 - -

    Specify the horizontal size of the printed area (in -inches).

    -    		 -
    - -

    −W

    -    		 - -

    Specify the maximum width of image (in inches). Images -with larger sizes will be split in several pages. Option -−L may be used for specifying size of split -images overlapping.

    -    		 -
    - -

    −x

    -    		 - -

    Override resolution units specified in the TIFF as -centimeters.

    -    		 -
    - -

    −y

    -    		 - -

    Override resolution units specified in the TIFF as -inches.

    -    		 -
    - -

    −z

    -    		 - -

    When generating PostScript Level 2, data is scaled so -that it does not image into the deadzone on a page -(the outer margin that the printing device is unable to -mark). This option suppresses this behavior. When PostScript -Level 1 is generated, data is imaged to the entire printed -page and this option has no affect.

    -    		 -
    - -

    EXAMPLES

    - - - - - -
    -

    The following generates PostScript Level 2 for all pages -of a facsimile:

    - - - - - -
    -
    tiff2ps −a2 fax.tif | lpr
-
    -
    - - - - - - -
    -

    Note also that if you have version 2.6.1 or newer of -Ghostscript then you can efficiently preview facsimile -generated with the above command.

    - -

    To generate Encapsulated PostScript for a the image at -directory 2 of an image use:

    - - - - - -
    -
    tiff2ps −d 1 foo.tif
-
    -
    - - - - - - -
    -

    (Notice that directories are numbered starting at -zero.)

    - -

    If you have a long image, it may be split in several -pages:

    - - - - - -
    -
    tiff2ps −h11 −w8.5 −H14 −L.5 foo.tif > foo.ps
-
    -
    - - - - - - -
    -

    The page size is set to 8.5x11 by −w and -−h options. We will accept a small amount of -vertical compression, so −H set to 14. Any -pages between 11 and 14 inches will be fit onto one page. -Pages longer than 14 inches are cut off at 11 and continued -on the next page. The −L.5 option says to -repeat a half inch on the next page (to improve -readability).

    -
    - -

    BUGS

    - - - - - -
    -

    Because PostScript does not support the notion of a -colormap, 8-bit palette images produce 24-bit PostScript -images. This conversion results in output that is six times -bigger than the original image and which takes a long time -to send to a printer over a serial line. Matters are even -worse for 4-, 2-, and 1-bit palette images.

    - -

    Does not handle tiled images when generating PostScript -Level I output.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcp(1), -tiffgt(1), tiffmedian(1), tiff2bw(1), -tiffsv(1), libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiff2rgba.1.html b/tiff/html/man/tiff2rgba.1.html deleted file mode 100755 index 35e06a5..0000000 --- a/tiff/html/man/tiff2rgba.1.html +++ /dev/null @@ -1,162 +0,0 @@ - - - - - - -TIFF2RGBA - - - -

    TIFF2RGBA

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiff2rgba − convert a TIFF image to -RGBA color space

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiff2rgba [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Tiff2rgba converts a wide variety of TIFF images -into an RGBA TIFF image. This includes the ability to -translate different color spaces and photometric -interpretation into RGBA, support for alpha blending, and -translation of many different bit depths into a 32bit RGBA -image.

    - -

    Internally this program is implemented using the -TIFFReadRGBAImage() function, and it suffers any -limitations of that image. This includes limited support for -> 8 BitsPerSample images, and flaws with some esoteric -combinations of BitsPerSample, photometric interpretation, -block organization and planar configuration.

    - -

    The generated images are stripped images with four -samples per pixel (red, green, blue and alpha) or if the -−n flag is used, three samples per pixel (red, -green, and blue). The resulting images are always planar -configuration contiguous. For this reason, this program is a -useful utility for transform exotic TIFF files into a form -ingestible by almost any TIFF supporting software.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify a compression scheme to use when writing image -data: −c none for no compression (the default), -−c packbits for the PackBits compression -algorithm, −c zip for the Deflate compression -algorithm, −c jpeg for the JPEG compression -algorithm, and −c lzw for Lempel-Ziv & -Welch.

    -    		 -
    - -

    −r

    -    		 - -

    Write data with a specified number of rows per strip; by -default the number of rows/strip is selected so that each -strip is approximately 8 kilobytes.

    -    		 -
    - -

    −b

    -    		 - -

    Process the image one block (strip/tile) at a time -instead of by reading the whole image into memory at once. -This may be necessary for very large images on systems with -limited RAM.

    -    		 -
    - -

    −n

    -    		 - -

    Drop the alpha component from the output file, producing -a pure RGB file. Currently this does not work if the -−b flag is also in effect.

    -    		 -
    - -

    SEE ALSO

    - - - - - -
    -

    tiff2bw(1), TIFFReadRGBAImage(3t), -libtiff(3)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffcmp.1.html b/tiff/html/man/tiffcmp.1.html deleted file mode 100755 index acd2e90..0000000 --- a/tiff/html/man/tiffcmp.1.html +++ /dev/null @@ -1,156 +0,0 @@ - - - - - - -TIFFCMP - - - -

    TIFFCMP

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffcmp − compare two TIFF files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffcmp [ options ] file1.tif -file2.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Tiffcmp compares the tags and data in two files -created according to the Tagged Image File Format, Revision -6.0. The schemes used for compressing data in each file are -immaterial when data are compared−data are compared on -a scanline-by-scanline basis after decompression. Most -directory tags are checked; notable exceptions are: -GrayResponseCurve, ColorResponseCurve, and -ColorMap tags. Data will not be compared if any of -the BitsPerSample, SamplesPerPixel, or -ImageWidth values are not equal. By default, -tiffcmp will terminate if it encounters any -difference.

    -
    - -

    OPTIONS

    - - - - - - - - -
    - -

    −l

    -    		 - -

    List each byte of image data that differs between the -files.

    -    		 -
    - - - - - -
    -

    −z number

    - - - - - -
    -

    List specified number of image data bytes that differs -between the files.

    -
    - - - - - - - - -
    - -

    −t

    -    		 - -

    Ignore any differences in directory tags.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    Tags that are not recognized by the library are not -compared; they may also generate spurious diagnostics.

    - -

    The image data of tiled files is not compared, since the -TIFFReadScanline() function is used. An error will be -reported for tiled files.

    - -

    The pixel and/or sample number reported in differences -may be off in some exotic cases.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffcp(1), -tiffmedian(1), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffcp.1.html b/tiff/html/man/tiffcp.1.html deleted file mode 100755 index c0c7da0..0000000 --- a/tiff/html/man/tiffcp.1.html +++ /dev/null @@ -1,569 +0,0 @@ - - - - - - -TIFFCP - - - -

    TIFFCP

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -EXAMPLES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffcp − copy (and possibly convert) a -TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffcp [ options ] src1.tif ... srcN.tif -dst.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffcp combines one or more files created -according to the Tag Image File Format, Revision 6.0 into a -single TIFF file. Because the output file may -be compressed using a different algorithm than the input -files, tiffcp is most often used to convert between -different compression schemes.

    - -

    By default, tiffcp will copy all the understood -tags in a TIFF directory of an input file to -the associated directory in the output file.

    - -

    tiffcp can be used to reorganize the storage -characteristics of data in a file, but it is explicitly -intended to not alter or convert the image data content in -any way.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    -

    −a

    -    		 - -

    Append to an existing output file instead of overwriting it.

    -    		 -
    -

    −b

    		 -

    subtract the following monochrome image from all others -processed. This can be used to remove a noise bias from a -set of images. This bias image is typically an image of -noise the camera saw with its shutter closed.

    -    		 -
    - -

    −B

    -    		 - -

    Force output to be written with Big-Endian byte order. -This option only has an effect when the output file is -created or overwritten and not when it is appended to.

    -    		 -
    - -

    −C

    -    		 - -

    Suppress the use of ‘‘strip -chopping’’ when reading images that have a -single strip/tile of uncompressed data.

    -    		 -
    - -

    −c

    -    		 - -

    Specify the compression to use for data written to the -output file: none for no compression, packbits -for PackBits compression, lzw for Lempel-Ziv & -Welch compression, jpeg for baseline JPEG -compression, zip for Deflate compression, g3 -for CCITT Group 3 (T.4) compression, g4 for CCITT -Group 4 (T.6) compression, or sgilog for SGILOG compression. -By default tiffcp will -compress data according to the value of the -Compression tag found in the source file.

    -    		 -
    - - - - - -
    -

    The CCITT Group 3 and Group 4 compression -algorithms can only be used with bilevel data.

    - -

    Group 3 compression can be specified together with -several T.4-specific options: 1d for 1-dimensional -encoding, 2d for 2-dimensional encoding, and -fill to force each encoded scanline to be zero-filled -so that the terminating EOL code lies on a byte boundary. -Group 3-specific options are specified by appending a -‘‘:’’-separated list to the -‘‘g3’’ option; e.g. −c -g3:2d:fill to get 2D-encoded data with byte-aligned EOL -codes.

    - -

    LZW compression can be specified together -with a predictor value. A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. LZW-specific -options are specified by appending a -‘‘:’’-separated list to the -‘‘lzw’’ option; e.g. −c -lzw:2 for LZW compression with horizontal -differencing.

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −f

    -    		 - -

    Specify the bit fill order to use in writing output -data. By default, tiffcp will create a new file with -the same fill order as the original. Specifying −f -lsb2msb will force data to be written with the FillOrder -tag set to LSB2MSB, while −f -msb2lsb will force data to be written with the FillOrder -tag set to MSB2LSB.

    -    		 -
    - -

    −i

    -    		 - -

    Ignore non-fatal read errors and continue processing of -the input file.

    -    		 -
    - -

    −l

    -    		 - -

    Specify the length of a tile (in pixels). tiffcp -attempts to set the tile dimensions so that no more than 8 -kilobytes of data appear in a tile.

    -    		 -
    - -

    −L

    -    		 - -

    Force output to be written with Little-Endian byte -order. This option only has an effect when the output file -is created or overwritten and not when it is appended -to.

    -    		 -
    - -

    −M

    -    		 - -

    Suppress the use of memory-mapped files when reading -images.

    -    		 -
    - -

    −o

    -    		 - -

    Set initial directory offset.

    -    		 -
    - -

    −p

    -    		 - -

    Specify the planar configuration to use in writing image -data that has one 8-bit sample per pixel. By default, -tiffcp will create a new file with the same planar -configuration as the original. Specifying −p -contig will force data to be written with multi-sample -data packed together, while −p separate will -force samples to be written in separate planes.

    -    		 -
    - -

    −r

    -    		 - -

    Specify the number of rows (scanlines) in each strip of -data written to the output file. By default (or when value -0 is specified), tiffcp attempts to set the -rows/strip that no more than 8 kilobytes of data appear in a -strip. If you specify special value −1 it will -results in infinite number of the rows per strip. The entire -image will be the one strip in that case.

    -    		 -
    - -

    −s

    -    		 - -

    Force the output file to be written with data organized -in strips (rather than tiles).

    -    		 -
    - -

    −t

    -    		 - -

    Force the output file to be written with data organized -in tiles (rather than strips). options can be used to force -the resultant image to be written as strips or tiles of -data, respectively.

    -    		 -
    - -

    −w

    -    		 - -

    Specify the width of a tile (in pixels). tiffcp -attempts to set the tile dimensions so that no more than 8 -kilobytes of data appear in a tile. tiffcp attempts -to set the tile dimensions so that no more than 8 kilobytes -of data appear in a tile.

    -    		 -
    - -

    −x

    -    		 - -

    Force the output file to be written with PAGENUMBER value -in sequence.

    -    		 -
    - -

    −8

    -    		 - -

    Write BigTIFF instead of classic TIFF format.

    -    		 -
    - - - - - -
    -

    −,=character

    - - - - - -
    -

    substitute character for ‘,’ in -parsing image directory indices in files. This is necessary -if filenames contain commas. Note that −,= with -whitespace immediately following will disable the special -meaning of the ‘,’ entirely. See examples.

    -
    - -

    EXAMPLES

    - - - - - -
    -

    The following concatenates two files and writes the -result using LZW encoding:

    - - - - - -
    -
    tiffcp −c lzw a.tif b.tif result.tif
-
    -
    - - - - - - -
    -

    To convert a G3 1d-encoded TIFF to a -single strip of G4-encoded data the following might be -used:

    - - - - - -
    -
    tiffcp −c g4 −r 10000 g3.tif g4.tif
-
    -
    - - - - - - -
    -

    (1000 is just a number that is larger than the number of -rows in the source file.)

    - -

    To extract a selected set of images from a multi-image -TIFF file, the file name may be immediately followed by a -‘,’ separated list of image directory indices. -The first image is always in directory 0. Thus, to copy the -1st and 3rd images of image file -‘‘album.tif’’ to -‘‘result.tif’’:

    - - - - - -
    -
    tiffcp album.tif,0,2 result.tif
-
    -
    - - - - - - -
    -

    A trailing comma denotes remaining images in sequence. -The following command will copy all image with except the -first one:

    - - - - - -
    -
    tiffcp album.tif,1, result.tif
-
    -
    - - - - - - -
    -

    Given file ‘‘CCD.tif’’ whose -first image is a noise bias followed by images which include -that bias, subtract the noise from all those images -following it (while decompressing) with the -command:

    - - - - - -
    -
    tiffcp −c none −b CCD.tif CCD.tif,1, result.tif
-
    -
    - - - - - - -
    -

    If the file above were named -‘‘CCD,X.tif’’, the −,= -option would be required to correctly parse this filename -with image numbers, as follows:

    - - - - - -
    -
    tiffcp −c none −,=% −b CCD,X.tif CCD,X%1%.tif result.tif
-
-
    -
    - -

    SEE ALSO

    - - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcmp(1), -tiffmedian(1), tiffsplit(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffcrop.1.html b/tiff/html/man/tiffcrop.1.html deleted file mode 100755 index 9c1edbb..0000000 --- a/tiff/html/man/tiffcrop.1.html +++ /dev/null @@ -1,684 +0,0 @@ - - - - - - -TIFFCROP - - - -

    TIFFCROP

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -EXAMPLES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffcrop − copy (and possibly convert and crop or -process) a TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffcrop [ options ] src1.tif ... -srcN.tif dst.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffcrop combines one or more files created -according to the Tag Image File Format, Revision 6.0 into a -single TIFF file. The output file may be -compressed using a different algorithm than the input files. -tiffcrop is most often used to extract portions of an -image for processing with bar code recognizer or OCR -software when that software cannot restrict the region of -interest to a specific portion of the image or to improve -efficiency when the regions of interest must be rotated.

    - -

    By default, tiffcrop will copy all the understood -tags in a TIFF directory of an input file to -the associated directory in the output file.

    - -

    tiffcrop can be used to reorganize the storage -characteristics of data in a file, and it will alter or -convert the image data content as specified at the same -time, unlike tiffcp.

    - -

    tiffcrop will behave exactly like tiffcp if none -of the new options are specified.

    -
    - -

    OPTIONS

    - - - - - -
    -

    −N odd|even|#,#-#,#|last

    - - - - - -
    -

    sequences and ranges of images within file to process. -The words odd or even may be used to specify -all odd or even numbered images. The word last may be -used in place of a number in the sequence to indicate the -final image in the file without knowing how many images -there are. Ranges of images may be specified with a dash and -multiple sets can be indicated by joining them in a -comma-separated list. e.g.. use −N 1,5-7,last -to process the 1st, 5th through 7th, and final image in the -file.

    -
    - - - - - -
    -

    −E top|bottom|left|right

    - - - - - -
    -

    use the top, bottom, left, or right edge as origin -reference for width and length of crop regions. May be -abbreviated to first letter.

    -
    - - - - - -
    -

    −U in|cm|px

    - - - - - -
    -

    units to apply to dimensions for margins and crop -regions. Inches or centimeters are converted to pixels using -the resolution unit specified in the TIFF file (which -defaults to inches if not specified in the IFD).

    -
    - - - - - -
    -

    −m #,#,#,#

    - - - - - -
    -

    margins to be removed from the image. The order must be -top, left, bottom, right with only commas separating the -elements of the list. Margins are scaled according to the -current units and removed before any other extractions are -computed. Capital M was in use.

    -
    - - - - - - - - - - - - - - -
    - -

    −X #

    -    		 - -

    horizontal (X-axis) dimension of a region to extract -relative to the specified origin reference. If the origin is -the top or bottom edge, the X axis value will be assumed to -start at the left edge.

    -    		 -
    - -

    −Y #

    -    		 - -

    vertical (Y-axis) dimension of a region to extract -relative to the specified origin reference. If the origin is -the left or right edge, the Y axis value will be assumed to -start at the top.

    -    		 -
    - - - - - -
    -

    −Z #:#,#:#

    - - - - - -
    -

    zones of the image designated as position X of Y equal -sized portions measured from the reference edge, e.g. 1:3 -would be first third of the image starting from the -reference edge minus any margins specified for the confining -edges. Multiple zones can be specified as a comma separated -list but they must reference the same edge. To extract the -top quarter and the bottom third of an image you would use -−Z 1:4,3:3.

    -
    - - - - - -
    -

    −F horiz|vert

    - - - - - -
    -

    flip, i.e. mirror, the image or extracted region -horizontally or vertically.

    -
    - - - - - -
    -

    −R 90|180|270

    - - - - - -
    -

    rotate the image or extracted region 90, 180, or 270 -degrees clockwise.

    -
    - - - - - - - - -
    - -

    −I

    -    		 - -

    invert the colorspace values for grayscale and bi-level -images. This would be used to correct negative images that -have incorrect PHOTOMETRIC INTERPRETATION tags. No support -for color images.

    -    		 -
    - - - - - -
    -

    −b image

    - - - - - -
    -

    subtract the following monochrome image from all others -processed. This can be used to remove a noise bias from a -set of images. This bias image is typically an image of -noise the camera saw with its shutter closed. Bias image -support is not available with options for cropping, -rotating, or inverting the image.

    -
    - - - - - - - - - - - - - - - - - - - - -
    - -

    −B

    -    		 - -

    Force output to be written with Big-Endian byte order. -This option only has an effect when the output file is -created or overwritten and not when it is appended to.

    -    		 -
    - -

    −C

    -    		 - -

    Suppress the use of ‘‘strip -chopping’’ when reading images that have a -single strip/tile of uncompressed data.

    -    		 -
    - -

    −c

    -    		 - -

    Specify the compression to use for data written to the -output file: none for no compression, packbits -for PackBits compression, lzw for Lempel-Ziv & -Welch compression, jpeg for baseline JPEG -compression, zip for Deflate compression, g3 -for CCITT Group 3 (T.4) compression, and g4 for CCITT -Group 4 (T.6) compression. By default tiffcrop will -compress data according to the value of the -Compression tag found in the source file.

    -    		 -
    - - - - - -
    -

    The CCITT Group 3 and Group 4 compression -algorithms can only be used with bi-level data.

    - -

    Group 3 compression can be specified together with -several T.4-specific options: 1d for 1-dimensional -encoding, 2d for 2-dimensional encoding, and -fill to force each encoded scanline to be zero-filled -so that the terminating EOL code lies on a byte boundary. -Group 3-specific options are specified by appending a -‘‘:’’-separated list to the -‘‘g3’’ option; e.g. −c -g3:2d:fill to get 2D-encoded data with byte-aligned EOL -codes.

    - -

    LZW compression can be specified together -with a predictor value. A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. LZW-specific -options are specified by appending a -‘‘:’’-separated list to the -‘‘lzw’’ option; e.g. −c -lzw:2 for LZW compression with horizontal -differencing.

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −f

    -    		 - -

    Specify the bit fill order to use in writing output -data. By default, tiffcrop will create a new file -with the same fill order as the original. Specifying -−f lsb2msb will force data to be written with -the FillOrder tag set to LSB2MSB, while -−f msb2lsb will force data to be written with -the FillOrder tag set to MSB2LSB.

    -    		 -
    - -

    −i

    -    		 - -

    Ignore non-fatal read errors and continue processing of -the input file.

    -    		 -
    - -

    −l

    -    		 - -

    Specify the length of a tile (in pixels). -tiffcrop attempts to set the tile dimensions so that -no more than 8 kilobytes of data appear in a tile.

    -    		 -
    - -

    −L

    -    		 - -

    Force output to be written with Little-Endian byte -order. This option only has an effect when the output file -is created or overwritten and not when it is appended -to.

    -    		 -
    - -

    −M

    -    		 - -

    Suppress the use of memory-mapped files when reading -images.

    -    		 -
    - -

    −p

    -    		 - -

    Specify the planar configuration to use in writing image -data that has one 8-bit sample per pixel. By default, -tiffcrop will create a new file with the same planar -configuration as the original. Specifying −p -contig will force data to be written with multi-sample -data packed together, while −p separate will -force samples to be written in separate planes.

    -    		 -
    - -

    −r

    -    		 - -

    Specify the number of rows (scanlines) in each strip of -data written to the output file. By default (or when value -0 is specified), tiffcrop attempts to set the -rows/strip that no more than 8 kilobytes of data appear in a -strip. If you specify special value -1 it will -results in infinite number of the rows per strip. The entire -image will be the one strip in that case.

    -    		 -
    - -

    −s

    -    		 - -

    Force the output file to be written with data organized -in strips (rather than tiles).

    -    		 -
    - -

    −t

    -    		 - -

    Force the output file to be written with data organized -in tiles (rather than strips). options can be used to force -the resultant image to be written as strips or tiles of -data, respectively.

    -    		 -
    - -

    −w

    -    		 - -

    Specify the width of a tile (in pixels). tiffcrop -attempts to set the tile dimensions so that no more than 8 -kilobytes of data appear in a tile. tiffcrop attempts -to set the tile dimensions so that no more than 8 kilobytes -of data appear in a tile.

    -    		 -
    - - - - - -
    -

    −,={character}

    - - - - - -
    -

    substitute {character} for ’,’ in parsing -image directory indices in files. This is necessary if -filenames contain commas. Note that ’,=’ with -whitespace immediately following will disable the special -meaning of the ’,’ entirely. See examples.

    -
    - -

    EXAMPLES

    - - - - - -
    -

    The following concatenates two files and writes the -result using LZW encoding:

    - - - - - -
    -
    tiffcrop -c lzw a.tif b.tif result.tif
-
    -
    - - - - - - -
    -

    To convert a G3 1d-encoded TIFF to a -single strip of G4-encoded data the following might be -used:

    - - - - - -
    -
    tiffcrop -c g4 -r 10000 g3.tif g4.tif
-
    -
    - - - - - - -
    -

    (1000 is just a number that is larger than the number of -rows in the source file.)

    - -

    To extract a selected set of images from a multi-image -TIFF file use the -N option described above. Thus, to copy -the 1st and 3rd images of image file "album.tif" -to "result.tif":

    - - - - - -
    -
    tiffcrop -N 1,3 album.tif result.tif
-
    -
    - - - - - - -
    -

    Given file "CCD.tif" whose first image is a -noise bias followed by images which include that bias, -subtract the noise from all those images following it (while -decompressing) with the command:

    - - - - - -
    -
    tiffcrop -c none -b CCD.tif CCD.tif -d 2 result.tif
-
    -
    - -

    SEE ALSO

    - - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcmp(1), -tiffcp(1), tiffmedian(1), tiffsplit(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffdither.1.html b/tiff/html/man/tiffdither.1.html deleted file mode 100755 index 1945c5b..0000000 --- a/tiff/html/man/tiffdither.1.html +++ /dev/null @@ -1,196 +0,0 @@ - - - - - - -TIFFDITHER - - - -

    TIFFDITHER

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -NOTES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffdither − convert a greyscale image to bilevel -using dithering

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffdither [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffdither converts a single channel 8-bit -greyscale image to a bilevel image using Floyd-Steinberg -error propagation with thresholding.

    -
    - -

    OPTIONS

    - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify the compression to use for data written to the -output file: none for no compression, packbits -for PackBits compression, lzw for Lempel-Ziv & -Welch compression, zip for Deflate compression, -g3 for CCITT Group 3 (T.4) compression, and g4 -for CCITT Group 4 (T.6) compression. By default -tiffdither will compress data according to the value -of the Compression tag found in the source file.

    -    		 -
    - - - - - -
    -

    The CCITT Group 3 and Group 4 compression -algorithms can only be used with bilevel data.

    - -

    Group 3 compression can be specified together with -several T.4-specific options: 1d for 1-dimensional -encoding, 2d for 2-dimensional encoding, and -fill to force each encoded scanline to be zero-filled -so that the terminating EOL code lies on a byte boundary. -Group 3-specific options are specified by appending a -‘‘:’’-separated list to the -‘‘g3’’ option; e.g. −c -g3:2d:fill to get 2D-encoded data with byte-aligned EOL -codes.

    - -

    LZW compression can be specified together -with a predictor value. A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. LZW-specific -options are specified by appending a -‘‘:’’-separated list to the -‘‘lzw’’ option; e.g. −c -lzw:2 for LZW compression with horizontal -differencing.

    -
    - - - - - - - - - - - - - - - - - - - - -
    - -

    −f

    -    		 - -

    Specify the bit fill order to use in writing output -data. By default, tiffdither will create a new file -with the same fill order as the original. Specifying -−f lsb2msb will force data to be written with -the FillOrder tag set to LSB2MSB , -while −f msb2lsb will force data to be written -with the Fill- Order tag set to MSB2LSB -.

    -    		 -
    - -

    −r

    -    		 - -

    Make each strip have no more than the given number of rows.

    -    		 -
    - -

    −t

    -    		 - -

    Set the threshold value for dithering. By default the -threshold value is 128.

    -    		 -
    - -

    NOTES

    - - - - - -
    -

    The dither algorithm is taken from the -tiffmedian(1) program (written by Paul Heckbert).

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), fax2tiff(1), -tiffinfo(1), tiffcp(1), tiff2bw(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffdump.1.html b/tiff/html/man/tiffdump.1.html deleted file mode 100755 index c37d2ee..0000000 --- a/tiff/html/man/tiffdump.1.html +++ /dev/null @@ -1,145 +0,0 @@ - - - - - - -TIFFDUMP - - - -

    TIFFDUMP

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffdump − print verbatim information about -TIFF files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffdump [ options ] name ...

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffdump displays directory information from files -created according to the Tag Image File Format, Revision -6.0. The header of each TIFF file (magic -number, version, and first directory offset) is displayed, -followed by the tag contents of each directory in the file. -For each tag, the name, data type, count, and value(s) is -displayed. When the symbolic name for a tag or data type is -known, the symbolic name is displayed followed by it’s -numeric (decimal) value. Tag values are displayed enclosed -in ‘‘<>’’ characters -immediately preceded by the value of the count field. For -example, an ImageWidth tag might be displayed as -‘‘ImageWidth (256) SHORT (3) -1<800>’’.

    - -

    tiffdump is particularly useful for investigating -the contents of TIFF files that -libtiff does not understand.

    -
    - -

    OPTIONS

    - - - - - - - - -
    - -

    −h

    -    		 - -

    Force numeric data to be printed in hexadecimal rather -than the default decimal.

    -    		 -
    - - - - - -
    -

    −m items

    - - - - - -
    -

    Change the number of indirect data items that are -printed. By default, this will be 24.

    -
    - - - - - -
    -

    −o offset

    - - - - - -
    -

    Dump the contents of the IFD at the a -particular file offset. The file offset may be specified -using the usual C-style syntax; i.e. a leading -‘‘0x’’ for hexadecimal and a leading -‘‘0’’ for octal.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffinfo(1), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffgt.1.html b/tiff/html/man/tiffgt.1.html deleted file mode 100755 index 5a04996..0000000 --- a/tiff/html/man/tiffgt.1.html +++ /dev/null @@ -1,551 +0,0 @@ - - - - - - -TIFFGT - - - -

    TIFFGT

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffgt − display an image stored in a -TIFF file (Silicon Graphics version)

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffgt [ options ] input.tif ...

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffgt displays one or more images stored using -the Tag Image File Format, Revision 6.0. Each image is -placed in a fixed size window that the user must position on -the display (unless configured otherwise through X -defaults). If the display has fewer than 24 bitplanes, or if -the image does not warrant full color, then -RGB color values are mapped to the closest -values that exist in the colormap (this is done using the -rgbi routine found in the graphics utility library -−lgutil.)

    - -

    tiffgt correctly handles files with any of the -following characteristics:

    - - - - - - - - - - - - - - - - - - - - - - -
    - -

    BitsPerSample

    -    		 - -

    1, 2, 4, 8, 16

    -
    - -

    SamplesPerPixel

    -    		 - -

    1, 3, 4 (the 4th sample is ignored)

    -
    - -

    PhotometricInterpretation

    -    		 - -

    0 (min-is-white), 1 (min-is-black), 2 (RGB), 3 -(palette), 6 (YCbCr)

    -
    - -

    PlanarConfiguration

    -    		 - -

    1 (contiguous), 2 (separate)

    -
    - -

    Orientation

    -    		 - -

    1 (top-left), 4 (bottom-left)

    -
    - - - - - -
    -

    Data may be organized as strips or tiles and may be -compressed with any of the compression algorithms supported -by the libtiff(3) library.

    - -

    For palette images (PhotometricInterpretation=3), -tiffgt inspects the colormap values and assumes -either 16-bit or 8-bit values according to the maximum -value. That is, if no colormap entry greater than 255 is -found, tiffgt assumes the colormap has only 8-bit -values; otherwise it assumes 16-bit values. This inspection -is done to handle old images written by previous (incorrect) -versions of libtiff.

    - -

    tiffgt can be used to display multiple images -one-at-a-time. The left mouse button switches the display to -the first image in the next file in the list of files -specified on the command line. The right mouse button -switches to the first image in the previous file in -the list. The middle mouse button causes the first image in -the first file specified on the command line to be -displayed. In addition the following keyboard commands are -recognized:

    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    b

    -    		 - -

    Use a PhotometricInterpretation of MinIsBlack in -displaying the current image.

    -    		 -
    - -

    l

    -    		 - -

    Use a FillOrder of lsb-to-msb in decoding the -current image.

    -    		 -
    - -

    m

    -    		 - -

    Use a FillOrder of msb-to-lsb in decoding the -current image.

    -    		 -
    - -

    c

    -    		 - -

    Use a colormap visual to display the current image.

    -    		 -
    - -

    r

    -    		 - -

    Use a true color (24-bit RGB) visual to display the -current image.

    -    		 -
    - -

    w

    -    		 - -

    Use a PhotometricInterpretation of MinIsWhite in -displaying the current image.

    -    		 -
    - -

    W

    -    		 - -

    Toggle (enable/disable) display of warning messages from -the TIFF library when decoding images.

    -    		 -
    - -

    E

    -    		 - -

    Toggle (enable/disable) display of error messages from -the TIFF library when decoding images.

    -    		 -
    - -

    z

    -    		 - -

    Reset all parameters to their default settings -(FillOrder, PhotometricInterpretation, -handling of warnings and errors).

    -    		 -
    - -

    PageUp

    -    		 - -

    Display the previous image in the current file or the -last image in the previous file.

    -    		 -
    - - - - - -
    -

    PageDown

    - - - - - -
    -

    Display the next image in the current file or the first -image in the next file.

    -
    - - - - - - - - - - - - - - -
    - -

    Home

    -    		 - -

    Display the first image in the current file.

    -    		 -
    - -

    End

    -    		 - -

    Display the last image in the current file -(unimplemented).

    -    		 -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Force image display in a colormap window.

    -    		 -
    - -

    −d

    -    		 - -

    Specify an image to display by directory number. By -default the first image in the file is displayed. -Directories are numbered starting at zero.

    -    		 -
    - -

    −e

    -    		 - -

    Enable reporting of error messages from the -TIFF library. By default tiffgt -silently ignores images that cannot be read.

    -    		 -
    - -

    −f

    -    		 - -

    Force tiffgt to run as a foreground process. By -default tiffgt will place itself in the background -once it has opened the requested image file.

    -    		 -
    - -

    −l

    -    		 - -

    Force the presumed bit ordering to be LSB -to MSB.

    -    		 -
    - -

    −m

    -    		 - -

    Force the presumed bit ordering to be MSB -to LSB.

    -    		 -
    - -

    −o

    -    		 - -

    Specify an image to display by directory offset. By -default the first image in the file is displayed. -Directories offsets may be specified using C-style syntax; -i.e. a leading ‘‘0x’’ for -hexadecimal and a leading ‘‘0’’ for -octal.

    -    		 -
    - -

    −p

    -    		 - -

    Override the value of the -PhotometricInterpretation tag; the parameter may be -one of: miniswhite, minisblack, rgb, -palette, mask, separated, ycbcr, -and cielab.

    -    		 -
    - -

    −r

    -    		 - -

    Force image display in a full color window.

    -    		 -
    - -

    −s

    -    		 - -

    Stop on the first read error. By default all errors in -the input data are ignored and tiffgt does it’s -best to display as much of an image as possible.

    -    		 -
    - -

    −w

    -    		 - -

    Enable reporting of warning messages from the -TIFF library. By default tiffgt -ignores warning messages generated when reading an -image.

    -    		 -
    - -

    −v

    -    		 - -

    Place information in the title bar describing what type -of window (full color or colormap) is being used, the name -of the input file, and the directory index of the image (if -non-zero). By default, the window type is not shown in the -title bar.

    -    		 -
    - -

    BUGS

    - - - - - -
    -

    Images wider and taller than the display are silently -truncated to avoid crashing old versions of the window -manager.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffdump(1), tiffinfo(1), tiffcp(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffinfo.1.html b/tiff/html/man/tiffinfo.1.html deleted file mode 100755 index d3a013c..0000000 --- a/tiff/html/man/tiffinfo.1.html +++ /dev/null @@ -1,196 +0,0 @@ - - - - - - -TIFFINFO - - - -

    TIFFINFO

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffinfo − print information about -TIFF files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffinfo [ options ] input.tif -...

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Tiffinfo displays information about files created -according to the Tag Image File Format, Revision 6.0. By -default, the contents of each TIFF directory -in each file is displayed, with the value of each tag shown -symbolically (where sensible).

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - -

    −c

    -    		 - -

    Display the colormap and color/gray response curves, if -present.

    -    		 -
    - -

    −D

    -    		 - -

    In addition to displaying the directory tags, read and -decompress all the data in each image (but not display -it).

    -    		 -
    - -

    −d

    -    		 - -

    In addition to displaying the directory tags, print each -byte of decompressed data in hexadecimal.

    -    		 -
    - -

    −j

    -    		 - -

    Display any JPEG -related tags that are -present.

    -    		 -
    - -

    −o

    -    		 - -

    Set the initial TIFF directory according -to the specified file offset. The file offset may be -specified using the usual C-style syntax; i.e. a leading -‘‘0x’’ for hexadecimal and a leading -‘‘0’’ for octal.

    -    		 -
    - -

    −s

    -    		 - -

    Display the offsets and byte counts for each data strip -in a directory.

    -    		 -
    - -

    −z

    -    		 - -

    Enable strip chopping when reading image data.

    -    		 -
    - -

    −#

    -    		 - -

    Set the initial TIFF directory to -#.

    -    		 -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffcp(1), tiffcmp(1), -tiffmedian(1), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffmedian.1.html b/tiff/html/man/tiffmedian.1.html deleted file mode 100755 index 7831051..0000000 --- a/tiff/html/man/tiffmedian.1.html +++ /dev/null @@ -1,183 +0,0 @@ - - - - - - -TIFFMEDIAN - - - -

    TIFFMEDIAN

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -NOTES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffmedian − apply the median cut algorithm to data -in a TIFF file

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffmedian [ options ] input.tif -output.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffmedian applies the median cut algorithm to an -RGB image in input.tif to generate a -palette image that is written to output.tif. The -generated colormap has, by default, 256 entries. The image -data is quantized by mapping each pixel to the closest color -values in the colormap.

    -
    - -

    OPTIONS

    - - - - - - - - -
    - -

    −c

    -    		 - -

    Specify the compression to use for data written to the -output file: none for no compression, packbits -for PackBits compression, lzw for Lempel-Ziv & -Welch compression, and zip for Deflate compression. -By default tiffmedian will compress data according to -the value of the Compression tag found in the source -file.

    -    		 -
    - - - - - -
    -

    LZW compression can be specified together -with a predictor value. A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. LZW-specific -options are specified by appending a -‘‘:’’-separated list to the -‘‘lzw’’ option; e.g. −c -lzw:2 for LZW compression with horizontal -differencing.

    -
    - - - - - - - - - - - - - - - - - - - - -
    - -

    −C

    -    		 - -

    Specify the number of entries to use in the generated -colormap. By default all 256 entries/colors are used.

    -    		 -
    - -

    −f

    -    		 - -

    Apply Floyd-Steinberg dithering before selecting a -colormap entry.

    -    		 -
    - -

    −r

    -    		 - -

    Specify the number of rows (scanlines) in each strip of -data written to the output file. By default, -tiffmedian attempts to set the rows/strip that no -more than 8 kilobytes of data appear in a strip.

    -    		 -
    - -

    NOTES

    - - - - - -
    -

    This program is derived from Paul Heckbert’s -median program.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    pal2rgb(1), tiffinfo(1), tiffcp(1), -tiffcmp(1), libtiff(3TIFF)

    - -

    Color Image Quantization for Frame Buffer Display, -Paul Heckbert, SIGGRAPH proceedings, 1982, pp. 297-307.

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffset.1.html b/tiff/html/man/tiffset.1.html deleted file mode 100755 index 7192d6e..0000000 --- a/tiff/html/man/tiffset.1.html +++ /dev/null @@ -1,176 +0,0 @@ - - - - - - -TIFFSET - - - -

    TIFFSET

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -EXAMPLES
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffset − set a field in a TIFF -header

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffset [ options ] filename.tif

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    Tiffset sets the value of a TIFF -header to a specified value.

    -
    - -

    OPTIONS

    - - - - - -
    -

    −s tagnumber [ count ] -value ...

    - - - - - -
    -

    Set the value of the named tag to the value or values -specified.

    -
    - - - - - -
    -

    −sf tagnumber filename

    - - - - - -
    -

    Set the value of the tag to the contents of filename. -This option is supported for ASCII tags only.

    -
    - -

    EXAMPLES

    - - - - - -
    -

    The following example sets the image description tag -(270) of a.tif to the contents of the file descrip:

    - - - - - -
    -
    tiffset −sf 270 descrip a.tif
-
    -
    - - - - - - -
    -

    The following example sets the artist tag (315) of a.tif -to the string -‘‘Anonymous’’:

    - - - - - -
    -
    tiffset −s 305 Anonymous a.tif
-
    -
    - - - - - - -
    -

    This example sets the resolution of the file a.tif to 300 -dpi:

    - - - - - -
    -
    tiffset −s 296 2 a.tif
-tiffset −s 282 300.0 a.tif
-tiffset −s 283 300.0 a.tif
-
    -
    - -

    SEE ALSO

    - - - - - - -
    -

    tiffdump(1), tiffinfo(1), tiffcp(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffsplit.1.html b/tiff/html/man/tiffsplit.1.html deleted file mode 100755 index 4de5c81..0000000 --- a/tiff/html/man/tiffsplit.1.html +++ /dev/null @@ -1,102 +0,0 @@ - - - - - - -TIFFSPLIT - - - -

    TIFFSPLIT

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffsplit − split a multi-image TIFF -into single-image TIFF files

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffsplit src.tif [ prefix ]

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffsplit takes a multi-directory (page) -TIFF file and creates one or more -single-directory (page) TIFF files from it. -The output files are given names created by concatenating a -prefix, a lexically ordered suffix in the range -[aaa-zzz], the suffix .tif (e.g. -xaaa.tif, xaab.tif, xzzz.tif). If a -prefix is not specified on the command line, the default -prefix of x is used.

    -
    - -

    OPTIONS

    - - - - - -
    -

    None.

    -
    - -

    BUGS

    - - - - - -
    -

    Only a select set of ‘‘known -tags’’ is copied when splitting.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    tiffcp(1), tiffinfo(1), -libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/man/tiffsv.1.html b/tiff/html/man/tiffsv.1.html deleted file mode 100755 index f9921a4..0000000 --- a/tiff/html/man/tiffsv.1.html +++ /dev/null @@ -1,207 +0,0 @@ - - - - - - -TIFFSV - - - -

    TIFFSV

    -NAME
    -SYNOPSIS
    -DESCRIPTION
    -OPTIONS
    -NOTE
    -BUGS
    -SEE ALSO
    - -
    - -

    NAME

    - - - - - -
    -

    tiffsv − save an image from the framebuffer in a -TIFF file (Silicon Graphics version)

    -
    - -

    SYNOPSIS

    - - - - - -
    -

    tiffsv [ options ] output.tif [ -x1 x2 y1 y2 ]

    -
    - -

    DESCRIPTION

    - - - - - -
    -

    tiffsv saves all or part of the framebuffer in a -file using the Tag Image File Format, Revision 6.0. By -default, the image is saved with data samples packed -(PlanarConfiguration=1), compressed with the -Lempel-Ziv & Welch algorithm (Compression=5), and -with each strip no more than 8 kilobytes. These -characteristics can be overridden, or explicitly specified -with the options described below.

    -
    - -

    OPTIONS

    - - - - - - - - - - - - - - -
    - -

    −b

    -    		 - -

    Save the image as a greyscale image as if it were -processed by tiff2bw(1). This option is included for -compatibility with the standard scrsave(6D) -program.

    -    		 -
    - -

    −c

    -    		 - -

    Specify the compression to use for data written to the -output file: none for no compression, packbits -for PackBits compression, jpeg for baseline JPEG -compression, zip for Deflate compression, and -lzw for Lempel-Ziv & Welch compression -(default).

    -    		 -
    - - - - - -
    -

    LZW compression can be specified together -with a predictor value. A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. LZW-specific -options are specified by appending a -‘‘:’’-separated list to the -‘‘lzw’’ option; e.g. −c -lzw:2 for LZW compression with horizontal -differencing.

    -
    - - - - - - - - - - - - - - -
    - -

    −p

    -    		 - -

    Specify the planar configuration to use in writing image -data. By default, tiffsv will create a new file with -the data samples packed contiguously. Specifying −p -contig will force data to be written with multi-sample -data packed together, while −p separate will -force samples to be written in separate planes.

    -    		 -
    - -

    −r

    -    		 - -

    Specify the number of rows (scanlines) in each strip of -data written to the output file. By default, tiffsv -attempts to set the rows/strip that no more than 8 kilobytes -of data appear in a strip.

    -    		 -
    - -

    NOTE

    - - - - - -
    -

    Except for the use of TIFF, this program -is equivalent to the standard scrsave program. This -means, for example, that you can use it in conjunction with -the standard icut program simply by creating a link -called scrsave, or by creating a shell script called -scrsave that invokes tiffgt with the -appropriate options.

    -
    - -

    BUGS

    - - - - - -
    -

    If data are saved compressed and in separate planes, then -the rows in each strip is silently set to one to avoid -limitations in the libtiff(3TIFF) library.

    -
    - -

    SEE ALSO

    - - - - - -
    -

    scrsave(6D) pal2rgb(1), tiffdump(1), -tiffgt(1), tiffinfo(1), tiffcp(1), -tiffmedian(1), libtiff(3TIFF)

    - -

    Libtiff library home page: -http://www.remotesensing.org/libtiff/

    -
    -
    - - diff --git a/tiff/html/misc.html b/tiff/html/misc.html deleted file mode 100755 index 4f8b829..0000000 --- a/tiff/html/misc.html +++ /dev/null @@ -1,116 +0,0 @@ - - - -Acknowledgments and Other Issues - - - - -

    - -Acknowledgments and Other Issues -

    - -

    -Silicon Graphics has seen fit to allow us to give this work away. It -is free. There is no support or guarantee of any sort as to its -operations, correctness, or whatever. If you do anything useful with -all or parts of it you need to honor the copyright notices. It would -also be nice to be acknowledged.

    - -
    - -

    Acknowledgements

    - -The libtiff software was written by Sam Leffler while working for -Silicon Graphics.

    - -The LZW algorithm is derived from the compress program (the proper attribution -is included in the source code). The Group 3 fax stuff originated as code -from Jef Poskanzer, but has since been rewritten several times. The latest -version uses an algorithm from Frank Cringle -- consult -libtiff/mkg3states.c and libtiff/tif_fax3.h for further -information. The JPEG support was written by Tom Lane and is dependent on the -excellent work of Tom Lane and the Independent JPEG Group (IJG) who distribute -their work under friendly licensing similar to this software. Joris Van Damme -implemented the robust Old JPEG decoder (as included in libtiff since version -3.9.0, there was another Old JPEG module in older releases, which was -incomplete and unsuitable for many existing images of that format). JBIG -module was written by Lee Howard and depends on JBIG library from the Markus -Kuhn. Many other people have by now helped with bug fixes and code; a few of -the more persistent contributors have been: - -

    -    Bjorn P. Brox
-    Dan McCoy
-    J.T. Conklin                
-    Richard Minner
-    Frank D. Cringle        
-    Richard Mlynarik
-    Soren Pingel Dalsgaard  
-    Niles Ritter
-    Steve Johnson           
-    Karsten Spang
-    Tom Lane               
-    Peter Smith
-    Brent Roman            
-    Mike Welles
-    Frank Warmerdam
-    Greg Ward
-    Stanislav Brabec        
-    Roman Shpount
-    Peter Skarpetis        
-    Arvan Pritchard
-    Bernt Herd             
-    Joseph Orost
-    Phil Beffery           
-    Ivo Penzar
-    Francois Dagand        
-    Albert Chin-A-Young
-    Bruce A. Mallett
-    Dwight Kelly
-    Andrey Kiselev
-    Ross Finlayson
-    Dmitry V. Levin
-    Bob Friesenhahn
-    Lee Howard
-    Joris Van Damme
-    Tavis Ormandy
-    Richard Nolde
-
    - -(my apology to anyone that was inadvertently not listed.) - -

    Use and Copyright

    - -

    -Copyright (c) 1988-1997 Sam Leffler
-Copyright (c) 1991-1997 Silicon Graphics, Inc.
-
-Permission to use, copy, modify, distribute, and sell this software and 
-its documentation for any purpose is hereby granted without fee, provided
-that (i) the above copyright notices and this permission notice appear in
-all copies of the software and related documentation, and (ii) the names of
-Sam Leffler and Silicon Graphics may not be used in any advertising or
-publicity relating to the software without the specific, prior written
-permission of Sam Leffler and Silicon Graphics.
-
-THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
-EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
-WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
-
-IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
-ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
-OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
-LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
-OF THIS SOFTWARE.
-
    - -

    -

    - - -Last updated: $Date: 2007-02-24 15:47:04 $ - - diff --git a/tiff/html/support.html b/tiff/html/support.html deleted file mode 100755 index a1255b9..0000000 --- a/tiff/html/support.html +++ /dev/null @@ -1,655 +0,0 @@ - - - - TIFF 6.0 Specification Coverage - - - - - - - - - - -
    -

    TIFF 6.0 Specification Coverage

    -

    - The library is capable of dealing with images that are written to - follow the 5.0 or 6.0 TIFF spec. There is also considerable support - for some of the more esoteric portions of the 6.0 TIFF spec. -

    -
    -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Core requirements -

    - Both "MM" and "II" byte orders are handled. - Both packed and separated planar configuration of samples. - Any number of samples per pixel (memory permitting). - Any image width and height (memory permitting). - Multiple subfiles can be read and written. - Editing is not supported in that related subfiles (e.g. - a reduced resolution version of an image) are not automatically - updated. -

    -

    - Tags handled: ExtraSamples, ImageWidth, - ImageLength, NewSubfileType, ResolutionUnit. - Rowsperstrip, StripOffsets, StripByteCounts, - XResolution, YResolution -

    -
    Tiled ImagesTileWidth, TileLength, TileOffsets, - TileByteCounts
    Image Colorimetry InformationWhitePoint, PrimaryChromaticities, TransferFunction, - ReferenceBlackWhite
    Class B for bilevel imagesSamplesPerPixel = 1
    - BitsPerSample = 1
    - Compression = 1 (none), 2 (CCITT 1D), or 32773 (PackBits)
    - PhotometricInterpretation = 0 (Min-is-White), 1 (Min-is-Black)
    Class G for grayscale imagesSamplesPerPixel = 1
    - BitsPerSample = 4, 8
    - Compression = 1 (none) 5 (LZW)
    - PhotometricInterpretation = 0 (Min-is-White), 1 (Min-is-Black)
    Class P for palette color imagesSamplesPerPixel = 1
    - BitsPerSample = 1-8
    - Compression = 1 (none) 5 (LZW)
    - PhotometricInterpretation = 3 (Palette RGB)
    - ColorMap
    Class R for RGB full color imagesSamplesPerPixel = 3
    - BitsPerSample = <8,8,8>
    - PlanarConfiguration = 1, 2
    - Compression = 1 (none) 5 (LZW)
    - PhotometricInterpretation = 2 (RGB)
    Class F for facsimile(Class B tags plus...)
    - Compression = 3 (CCITT Group 3), 4 (CCITT Group 4)
    - FillOrder = 1 (MSB), 2 (LSB)
    - Group3Options = 1 (2d encoding), 4 (zero fill), 5 (2d+fill)
    - ImageWidth = 1728, 2048, 2482
    - NewSubFileType = 2
    - ResolutionUnit = 2 (Inch), 3 (Centimeter)
    - PageNumber, - XResolution, - YResolution, - Software, - BadFaxLines, - CleanFaxData, - ConsecutiveBadFaxLines, - DateTime, - DocumentName, - ImageDescription, - Orientation
    Class S for separated imagesSamplesPerPixel = 4
    - PlanarConfiguration = 1, 2
    - Compression = 1 (none), 5 (LZW)
    - PhotometricInterpretation = 5 (Separated)
    - InkSet = 1 (CMYK)
    - DotRange, - InkNames, - DotRange, - TargetPrinter
    Class Y for YCbCr imagesSamplesPerPixel = 3
    - BitsPerSample = <8,8,8>
    - PlanarConfiguration = 1, 2
    - Compression = 1 (none), 5 (LZW), 7 (JPEG)
    - PhotometricInterpretation = 6 (YCbCr)
    - YCbCrCoefficients, - YCbCrSubsampling, - YCbCrPositioning
    - (colorimetry info from Appendix H; see above)
    Class "JPEG" for JPEG images (per TTN2)PhotometricInterpretation = 1 (grayscale), 2 (RGB), 5 (CMYK), 6 (YCbCr)
    - (Class Y tags if YCbCr)
    - (Class S tags if CMYK)
    - Compression = 7 (JPEG)
    -

    - In addition, the library supports some optional compression algorithms - that are, in some cases, of dubious value. -

    - - - - - - - - -
    Compression tag valueCompression algorithm
    32766NeXT 2-bit encoding
    32809ThunderScan 4-bit encoding
    32909Pixar companded 11-bit ZIP encoding
    32946PKZIP-style Deflate encoding (experimental)
    34676SGI 32-bit Log Luminance encoding (experimental)
    34677SGI 24-bit Log Luminance encoding (experimental)
    -
    -

    - Note that there is no support for the JPEG-related tags defined - in the 6.0 specification; the JPEG support is based on the post-6.0 - proposal given in TIFF Technical Note #2. -

    - - - - - -
    For more information on the experimental Log Luminance encoding - consult the materials available at - http://www.anyhere.com/gward/pixformat/tiffluv.html.
    -
    -

    - The following table shows the tags that are recognized - and how they are used by the library. If no use is indicated, - then the library reads and writes the tag, but does not use it internally. -

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Tag NameValueR/WLibrary's Use (Comments)
    NewSubFileType254R/Wnone (called SubFileType in <tiff.h>)
    SubFileType255R/Wnone (called OSubFileType in <tiff.h>)
    ImageWidth256R/Wlots
    ImageLength257R/Wlots
    BitsPerSample258R/Wlots
    Compression259R/Wto select appropriate codec
    PhotometricInterpretation262R/Wlots
    Thresholding263R/W 
    CellWidth264 parsed but ignored
    CellLength265 parsed but ignored
    FillOrder266R/Wcontrol bit order
    DocumentName269R/W 
    ImageDescription270R/W 
    Make271R/W 
    Model272R/W 
    StripOffsets273R/Wdata i/o
    Orientation274R/W 
    SamplesPerPixel277R/Wlots
    RowsPerStrip278R/Wdata i/o
    StripByteCounts279R/Wdata i/o
    MinSampleValue280R/W 
    MaxSampleValue281R/W 
    XResolution282R/W 
    YResolution283R/Wused by Group 3 2d encoder
    PlanarConfiguration284R/Wdata i/o
    PageName285R/W 
    XPosition286R/W 
    YPosition286R/W 
    FreeOffsets288 parsed but ignored
    FreeByteCounts289 parsed but ignored
    GrayResponseUnit290 parsed but ignored
    GrayResponseCurve291 parsed but ignored
    Group3Options292R/Wused by Group 3 codec
    Group4Options293R/W 
    ResolutionUnit296R/Wused by Group 3 2d encoder
    PageNumber297R/W 
    ColorResponseUnit300 parsed but ignored
    TransferFunction301R/W 
    Software305R/W 
    DateTime306R/W 
    Artist315R/W 
    HostComputer316R/W 
    Predictor317R/Wused by LZW codec
    WhitePoint318R/W 
    PrimaryChromacities319R/W 
    ColorMap320R/W 
    TileWidth322R/Wdata i/o
    TileLength323R/Wdata i/o
    TileOffsets324R/Wdata i/o
    TileByteCounts324R/Wdata i/o
    BadFaxLines326R/W 
    CleanFaxData327R/W 
    ConsecutiveBadFaxLines328R/W 
    SubIFD330R/Wsubimage descriptor support
    InkSet332R/W 
    InkNames333R/W 
    DotRange336R/W 
    TargetPrinter337R/W 
    ExtraSamples338R/Wlots
    SampleFormat339R/W 
    SMinSampleValue340R/W 
    SMaxSampleValue341R/W 
    JPEGTables347R/Wused by JPEG codec
    YCbCrCoefficients529R/Wused by TIFFReadRGBAImage support
    YCbCrSubsampling530R/Wtile/strip size calculations
    YCbCrPositioning531R/W 
    ReferenceBlackWhite532R/W 
    Matteing32995Rnone (obsoleted by ExtraSamples tag)
    DataType32996Rnone (obsoleted by SampleFormat tag)
    ImageDepth32997R/Wtile/strip calculations
    TileDepth32998R/Wtile/strip calculations
    StoNits37439R/W 
    -

    - The Matteing and DataType - tags have been obsoleted by the 6.0 - ExtraSamples and SampleFormat tags. - Consult the documentation on the - ExtraSamples tag and Associated Alpha for elaboration. Note however - that if you use Associated Alpha, you are expected to save data that is - pre-multipled by Alpha. If this means nothing to you, check out - Porter & Duff's paper in the '84 SIGGRAPH proceedings: "Compositing Digital - Images". -

    -

    - The ImageDepth - tag is a non-standard, but registered tag that specifies - the Z-dimension of volumetric data. The combination of ImageWidth, - ImageLength, and ImageDepth, - defines a 3D volume of pixels that are - further specified by BitsPerSample and - SamplesPerPixel. The TileDepth - tag (also non-standard, but registered) can be used to specified a - subvolume "tiling" of a volume of data. -

    -

    - The Colorimetry, and CMYK tags are additions that appear in TIFF 6.0. - Consult the TIFF 6.0 specification included in the doc directory - and online. -

    -

    - The JPEG-related tag is specified in - TIFF Technical Note #2 which defines - a revised JPEG-in-TIFF scheme (revised over that appendix that was - part of the TIFF 6.0 specification). -

    -
    -

    - Last updated: $Date: 2005-12-28 06:53:18 $ -

    - - - diff --git a/tiff/html/tools.html b/tiff/html/tools.html deleted file mode 100755 index 65e9c0d..0000000 --- a/tiff/html/tools.html +++ /dev/null @@ -1,164 +0,0 @@ - - - - -TIFF Tools Overview - - -

    TIFF -Tools Overview

    -

    This software distribution comes with a small collection of -programs for converting non-TIFF format images to TIFF and for -manipulating and interrogating the contents of TIFF images. Several -of these tools are useful in their own right. Many of them however -are more intended to serve as programming examples for using the -TIFF library.

    -

    Device-dependent Programs

    -There are two device-dependent programs that serve as simple -examples for writing programs to display and save TIFF images. - - - - - - - - - -
    -tiffgt    Display the contents of one or more TIFF images using OpenGL. -The software makes extensive use of the TIFFRGBAImage -facilities described elsewhere.
    tiffsvA program to save all or part of a screen dump on a Silicon -Graphics system. As for tiffgt this code, while written to -use the IRIS GL, can be easily tailored to other devices.
    -

    Device-independent Programs

    -The remaining programs should be device-independent: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    bmp2tiffConvert BMP images to TIFF
    fax2psConvert a Group 3- or Group 4- compressed TIFF to PostScript -that is significantly more compressed than is generated by -tiff2ps (unless tiff2ps writes PS Level II)
    fax2tiffConvert raw Group 3 or Group 4 facsimile data to TIFF
    gif2tiffA quick hack that converts GIF 87a (old) format images to TIFF
    pal2rgbConvert a Palette-style image to a full color RGB image by -applying the colormap
    ppm2tiffA quick hack that converts 8-bit PPM format images to TIFF
    ras2tiffA quick hack that converts Sun rasterfile format images to TIFF --- it's less than complete
    raw2tiffCreate a TIFF file from raw data
    rgb2ycbcrConvert an RGB, grayscale, or bilevel TIFF image to a YCbCr -TIFF image; it's mainly provided for testing
    sgi2tiffA program to convert SGI image files to TIFF. This program is -only useful on SGI machines as it uses -limage.
    thumbnailCopy a bilevel TIFF to one that includes 8-bit greyscale -"thumbnail images" for each page; it is provided as an example of -how one might use the SubIFD tag (and the library support -for it)
    tiff2bwA simple program to convert a color image to grayscale
    tiff2pdfConvert TIFF images to PDF
    tiff2psConvert TIFF images to PostScript
    tiff2rgbaConvert a TIFF image to RGBA color space
    tiffcmpCompare the contents of two TIFF files (it does not check all -the directory information, but does check all the data)
    tiffcpCopy, concatenate, and convert TIFF images (e.g. switching from -Compression=5 to Compression=1)
    tiffcropProvides selection of images from within one or more multi-image -TIFF files, with orthogonal rotation, mirroring, cropping, and -extraction of multiple sections and exporting to one or more files. -It extends the functionality of tiffcp to support additional bit -depths in strips and tiles and enhances the selection capabilities of -tiffsplit. Bilevel images can be inverted and images may be split into -segments to fit on multiple /pages/ (standard paper sizes), plus other -functions described in the tiffcrop man page
    tiffditherDither a b&w image into a bilevel image (suitable for use -in creating fax files)
    tiffdumpDisplay the verbatim contents of the TIFF directory in a file -(it's very useful for debugging bogus files that you may get from -someone that claims they support TIFF)
    tiffinfoDisplay information about one or more TIFF files.
    tiffmedianA version of Paul Heckbert's median cut program that reads an -RGB TIFF image, and creates a TIFF palette file as a result
    tiffsetSet a field in a TIFF header
    tiffsplitCreate one or more single-image files from a (possibly) -multi-image file
    -

    Check out the manual pages for details about the above -programs.

    -
    -Last updated: $Date: 2009-10-28 22:13:37 $ - - diff --git a/tiff/html/v3.4beta007.html b/tiff/html/v3.4beta007.html deleted file mode 100755 index e8b697e..0000000 --- a/tiff/html/v3.4beta007.html +++ /dev/null @@ -1,112 +0,0 @@ - - - -Changes in TIFF v3.4beta007 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • bit order was corrected for Pentium systems -
    • a new define, HOST_BIGENDIAN, was added for code that - wants to statically use information about native cpu byte order -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • the G3/G4 decoder was replaced by a new one that is faster and - has smaller state tables -
    • Niles Ritter's client tag extension hooks were added -
    • a new routine TIFFCurrentDirOffset was added for - applications that want to find out the file offset of a TIFF directory -
    • the calculation of the number of strips in an image was corected - for images with certain esoteric configurations -
    • a potential memory leak (very unlikely) was plugged -
    • the TIFFReadRGBAImage support was completely rewritten - and new, more flexible support was added for reading images into - a fixed-format raster -
    • YCbCr to RGB conversion done in the TIFFReadRGBAImage support - was optimized -
    • a bug in JPEG support calculation of strip size was corrected -
    • the LZW decoder was changed to initialize the code table to zero - to lessen potential problems that arise when invalid data is decoded -
    • tiffcomp.h is now aware of OS/2 -
    • some function prototypes in tiffio.h and tiffiop.h - that contained parameter - names have been changed to avoid complaints from certain compilers -
    - -

    - -CHANGES IN THE PORTABILITY SUPPORT: - -
      -
    • Makefile.in has been corrected to use the parameters - chosen by the configure script -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • fax2ps has been rewritten and moved over from the user - contributed software -
    • an uninitialized variable in pal2rgb has been fixed -
    • ras2tiff now converts 24-bit RGB raster data so that - samples are written in the proper order -
    • tiff2ps has been updated to include fixes - and enhancements from Alberto Accomazzi -
    • tiffcp now has a -o option to select a directory - by file offset -
    • tiffinfo is now capable of displaying the raw undecoded - image data in a file -
    • tiffgt has been rewritten to use the new TIFFRGBAImage - support and to handle multiple files -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta016.html b/tiff/html/v3.4beta016.html deleted file mode 100755 index f9b0078..0000000 --- a/tiff/html/v3.4beta016.html +++ /dev/null @@ -1,122 +0,0 @@ - - - -Changes in TIFF v3.4beta016 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • support was added for configuring the Deflate codec -
    • support was added for the HTML documentation -
    • codecs that are not configured for inclusion in the library - are no longer compiled -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • support was added for registering new codecs external to the library - and for overriding the codecs that are builtin to the library -
    • emulation support for the old DataType tag was improved -
    • suppport was added for the SMinSampleValue - and SMaxSampleValue tags -
    • the library no longer ignores TileWidth and TileLength - tags whose values are not a multiple of 16 (per the spec); this - permits old, improperly written, images to be read -
    • the support for the Predictor tag was placed in a reusable - module so that it can be shared by multiple codecs -
    • experimental compression support was added for the Deflate algorithm - (using the freely available zlib package) -
    • a new routine, TIFFWriteBufferSetup was added a la the - routine TIFFReadBufferSetup -
    • the DSO version of the library is now statically linked with the - JPEG and Deflate libraries; this means applications that link against - the DSO do not also need to link against these ancillary libraries -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • all the tools now use common code to process compress-oriented arguments -
    • tiffdump should now compile on a Macintosh with MPW -
    - -

    - -CHANGES IN THE MANUAL PAGES: - -
      -
    • everything was updated -
    - -

    - -CHANGES IN THE DOCUMENTATION: - -
      -
    • everything was updated -
    - -

    - -CHANGES IN CONTRIBUTED SOFTWARE: - -
      -
    • contrib/dbs/xtiff was made to compile -
    • contrib/mac-mpw is new support for compiling the software on - a Macintosh under MPW; consult the documentation - for details -
    • contrib/tags is information on how to use the tag extenion - facilities; consult - contrib/tags/README for details -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta018.html b/tiff/html/v3.4beta018.html deleted file mode 100755 index 17bf989..0000000 --- a/tiff/html/v3.4beta018.html +++ /dev/null @@ -1,84 +0,0 @@ - - - -Changes in TIFF v3.4beta018 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • configure now recognizes IRIX 6.x systems -
    • configure now uses ENVOPTS when searching for an ANSI - C compiler; this fixes a problem configuring the software under - HP/UX with the native C compiler -
    • configure now correctly recognizes memory-mapped files are supported - under AIX -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • make install now properly installs the include files -
    • some portability fixes from Bjorn Brox -
    • the G3/G4 codec now warns about decoded rows that are longer than - the image/tile width -
    • changes from Frank Cringle to make the library work with the - gcc-specific bounds checking software -
    • miscellaneous fixes to TIFFPrintDirectory -
    • bug fix to correct a problem where TIFFWriteRawStrip - could not be used to automatically grow an image's length -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • fixes from Frank Cringle to update fax2tiff -
    • portability fixes to tiff2bw and tiffcmp -
    • tiffdump now uses the byte swapping routines in the library -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta024.html b/tiff/html/v3.4beta024.html deleted file mode 100755 index 74cd6e8..0000000 --- a/tiff/html/v3.4beta024.html +++ /dev/null @@ -1,139 +0,0 @@ - - - -Changes in TIFF v3.4beta024 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • It is now possible to setup the software to build only the - library; configure reconizes this is the intent when the - VERSION, tiff.alpha, and tif_version.c - files are in the local directory (i.e. ``.'') -
    • configure no longer tries to setup HTML materials -
    • include file directories needed in building the library are now - specified with a DIRS_LIBINC config parameter -
    • configure no longer checks for alternate compilers if CC - is set; if the specified compiler is not found or is not appropriate - the configuration procedure aborts -
    • the port.h file generated by configure is now used only by - the library and as such as have been moved to the libtiff - directory -
    • there is beginning support for building DSO's on systems other than IRIX -
    • configure now verifies the JPEG and zlib directory pathnames by - checking for well-known include files in these directories -
    • configure no longer creates the dist directory needed only - on SGI machines (for building SGI binary distributions) -
    • a bug was fixed whereby configure would incorrectly set - ENVOPTS when building the software with gcc under AIX -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • two new typedefs were added to tiff.h: int8 - and uint8 for signed and unsigned 8-bit quantities, - respectively; these are currently used only by - programs in the tools directory -
    • the BadFaxLines, CleanFaxData, and - ConsecutiveBadFaxLines tags are now supported with - Group 4 compression -
    • byte order is now correctly identified on 64-bit machines -
    • a bug was fixed in the PackBits decoder where input data would - appear short when a no-op run was present -
    • a bug was fixed in calculations with very wide strips -
    • TIFFWriteEncodedStrip and TIFFWriteRawStrip - were extended to support dynamically growing the number of - strips in an image (must set ImageLength prior to - making calls though) -
    • TIFFDefaultTileSize now rounds tile width and height - up to a multiple of 16 pixels, as required by the TIFF 6.0 specification -
    • the file version.h is now built by a new mkversion - program; this was done for portability to non-UNIX systems -
    • support was added for the Acorn RISC OS (from Peter Greenham) -
    • the builtin codec table is now made const when compiling - under VMS so that libtiff can be built as a shared library -
    • support for the PowerPC Mac (from Ruedi Boesch) -
    • support for Window NT/Window 95 (from Scott Wagner) -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • the tools no longer include port.h -
    • various portability fixes; mostly to eliminate implicit assumptions - about how long int32 data types are -
    • PostScript Level II additions to tiff2ps from Bjorn Brox -
    • sgi2tiff now handles RGBA images -
    - -

    - -CHANGES IN THE MANUAL PAGES: - -
      -
    • the documentation has been updated to reflect the current state of - the software -
    • some routines have been moved to different manual pages - to group like-routines together -
    - -

    - -CHANGES IN THE CONTRIBUTED SOFTWARE: - -
      -
    • support was added for the Acorn RISC OS (from Peter Greenham) -
    • support for Windows NT/Windows 95 contributed for a previous - version of this software was sort of incorporated (it's broken - right now) (from Scott Wagner) -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta028.html b/tiff/html/v3.4beta028.html deleted file mode 100755 index 2b73c3d..0000000 --- a/tiff/html/v3.4beta028.html +++ /dev/null @@ -1,146 +0,0 @@ - - - -Changes in TIFF v3.4beta028 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • a -noninteractive flag was added to configure to - control whether or not it prints and prompts for configuration information -
    • various typos and fixes were made in configure for the the - library-only build support (this and other configure fixes from - Richard Mlynarik <mly@adoc.xerox.com>) -
    • bugs were fixed in the handling of pathnames supplied for external - packages; e.g. DIR_JPEG -
    • the handling of SETMAKE is now done properly -
    • the default prototype function declaration for pow was corrected -
    • a bug was fixed in libtiff/Makefile.in that caused installation - to fail on systems without DSO support -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • Acorn RISC O/S support that was accidentally left out of the - left out of the previous distribution is present (from Peter Greenham) -
    • complaints about unknown and/or unsupported codecs have been - delayed until they are invoked; this permits applications to open - images and look at tags even if the image data is compressed with - an unknown/unsupported compression scheme -
    • bugs in handling unknown tags have been corrected; applications - that use multiple codecs, each with codec-specific tags, no longer - generate confusing error messages -
    • a missing pseudo-tag definition in the CCITT G3 codec was fixed - (this problem caused core dumps in the tiffcp program) -
    • pseudo-tags are now treated specially; they are always considered - to be set (i.e. they do not use bits in the FIELD_* bit-vectors). -
    • the use of strip chopping can now be controlled on a per-file basis - through a mode parameter supplied when opening a file (``C'' to - enable strip chopping and ``c'' to disable) -
    • two bugs were fixed in the writing of opposite-endian byte-order - files -
    • support was added for three new fax-related tags registered to - SGI: FaxRecvParams, FaxRecvTime, and FaxSubAddress -
    • the bit order of image data read and written can now be controlled - on a per-file basis through a mode parameter supplied when opening - a file (``B'' to force MSB2LSB bit order, ``L'' for LSB2MSB bit - order, and ``H'' for the bit order of the native CPU) -
    • the byte order of image and tag data written to newly-created files - can now be controlled on a per-file basis through a mode parameter - supplied when openening a file (``b'' to force Big-Endian byte order - and ``l'' to force Little-Endian byte order) -
    • the use memory-mapped files for images opened read-only can now - be controlled on a per-file basis through a mode parameter supplied - when opening a file (``M'' to enable use of memory-mapped files - and ``m'' to disable use) -
    • the use of the WIN32 define in tiffiop.h has - been replaced by __WIN32__ -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • fax2ps now does a save and restore - around each page of PostScript; this fixes a problem with VM - overflow when printing a many-page document on some printers -
    • a bug in the handling of 3-channel images by ras2tiff - was fixed -
    • tiffcp has new options to control the byte order of - newly created files: -B for Big-Endian byte order, -L - for Little-Endian byte order; a -M option to disable the - use of memory-mapped files, and a -C option to disable the - use of strip chopping -
    • bugs were fixed in tiffcp's handling of codec-specific tags -
    - -

    - -CHANGES IN THE MANUAL PAGES: - -
      -
    • the TIFFOpen page has been updated to reflect the new - optional open mode parameters -
    - -

    - -CHANGES IN THE CONTRIBUTED SOFTWARE: - -
      -
    • contrib/win95 contains information and code from Philippe Tenenhaus - <100423.3705@compuserve.com> - about using the software under Windows 95 -
    • contrib/winnt contains information and code from Dave Dyer - <ddyer@triple-i.com> - about using the software under Windows NT -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta029.html b/tiff/html/v3.4beta029.html deleted file mode 100755 index bb06fa1..0000000 --- a/tiff/html/v3.4beta029.html +++ /dev/null @@ -1,86 +0,0 @@ - - - -Changes in TIFF v3.4beta029 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • configure now relativizes pathname references given in - -L options (as frequently specified when configuring - ancillary packages) -
    • problems related to configuring the software on Ultrix 4.4 have - been corrected -
    • the shell to use in Makefiles and scripts can now be set with the - SCRIPT_SH configuration parameter -
    • comments in config.site now correctly indicate how to setup the - use of ancillary packages -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • mods for building the software on a Mac using the - MetroWerks CodeWarrior compilers -
    • a bug in the CCITT T.4/T.6 decoder was fixed where the last codeword in - a strip/tile might not be decoded; this was seen only when decoding - multi-strip images -
    • a bug in the CCITT RLE codecs was fixed whereby the pseudo tags were not - being properly registered -
    - -

    - -CHANGES IN THE CONTRIBUTED SOFTWARE: - -
      -
    • contrib/mac-cw contains information and code from Niles Ritter - <ndr@tazboy.jpl.nasa.gov> - about building the software with the MetroWerks CodeWarrior compilers - on Macintosh systems -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta031.html b/tiff/html/v3.4beta031.html deleted file mode 100755 index 9b645fa..0000000 --- a/tiff/html/v3.4beta031.html +++ /dev/null @@ -1,94 +0,0 @@ - - - -Changes in TIFF v3.4beta031 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • configure now captures significantly more information - in the config.log file and provides more information when - it is unable to setup a configuration -
    • support was added for building shared libraries on more systems: - AIX, HPUX, Solaris, and Linux. -
    • a new configuration parameter LIBCOPTS was added for - passing arguments to the C compiler to use when building only - the library; this is part of the enhanced support for building - shared libraries -
    • include files for optional packages that reside in /usr/include - are now handled correctly -
    • build trees may now be configured using either relative or absolute - pathnames to the source distribution -
    • several new configuration parameters were added, mainly for building - shared libraries: DIST_MAJOR, DIST_MINOR, - DIST_ALPHA, and DSOSUF_VERSION -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • the Deflate support has been revised: it requires version 0.99 of - the zlib software distribution, the output format has changed and - is incompatible with previous versions of this library (each - strip now includes a header read and written by the zlib library) -
    • the codec name printed by the TIFFPrintDirectory routine is now - taken from the codec table instead of from a builtin table; this means - that application-defined codecs are handled correctly -
    • a new symbol was added that contains the library version number; - this can be used to do a compile-time compatibility check of the - library version -
    - -

    - -CHANGES IN THE MANUAL PAGES: - -
      -
    • the creation and installation of manual pages was redone; it now - implements the documented ``configuration scheme'' -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta032.html b/tiff/html/v3.4beta032.html deleted file mode 100755 index 61c3f4b..0000000 --- a/tiff/html/v3.4beta032.html +++ /dev/null @@ -1,90 +0,0 @@ - - - -Changes in TIFF v3.4beta032 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • various fixups and subtle improvements to configure - from Richard Mlynarik -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • a new codec from Pixar designed for high-resolution color images; - note that this codec is not configured by default -
    • a bug fix for reading tags with a single FLOAT value -
    • change to the TIFFGetField calling convention: - a tag that has a single value of - type DOUBLE is now retrieved by passing a - ``double*'' instead of a - ``double**'' (this change makes the handling of tags with - DOUBLE values identical to the handling of tags with - FLOAT values) -
    • fix to VMS support for the handling of floating point values -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • tiffdump now handles tags with FLOAT and DOUBLE - values -
    - -

    - -CHANGES IN THE CONTRIBUTED SOFTWARE: - -
      -
    • updates to the Acorn OS support from Peter Greenham -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta033.html b/tiff/html/v3.4beta033.html deleted file mode 100755 index 78c22f3..0000000 --- a/tiff/html/v3.4beta033.html +++ /dev/null @@ -1,82 +0,0 @@ - - - -Changes in TIFF v3.4beta033 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • support was added for building the library as a DSO under OSF/1 -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • fixes to the Pixar codec -
    • portability mods for VMS -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • fixes to gif2tiff and ppm2tiff for building under MS/DOS -
    • portability mods to fax2ps and ycbcr for VMS -
    - -

    - -CHANGES IN THE CONTRIBUTED SOFTWARE: - -
      -
    • a new package from Alexander Lehmann - for building the library and tools under MS/DOS with DJGPP v2 -
    • updated VMS support from Karsten Spang -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta034.html b/tiff/html/v3.4beta034.html deleted file mode 100755 index d928b1a..0000000 --- a/tiff/html/v3.4beta034.html +++ /dev/null @@ -1,68 +0,0 @@ - - - -Changes in TIFF v3.4beta034 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • support was added for building the library as a DSO under NetBSD -
    • a bug was fixed in the DSO support for Linux -
    • the handling of version strings has changed slightly to simplify parsing -
    • a new parameter, TIFFLIBREF, was added to control how the - library is referenced when linking programs in the tools directory -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • DSO creation under Solaris now forces the DSO name with a -h option -
    • the interface to the mkversion program was changed - to eliminate the need to parse files -
    • a bug was fixed in the EOL-detection logic of the T.4/T.6 decoder -
    • ANSI IT8 TIFF/IT tag definitions were added to tiff.h -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta035.html b/tiff/html/v3.4beta035.html deleted file mode 100755 index ac5f493..0000000 --- a/tiff/html/v3.4beta035.html +++ /dev/null @@ -1,63 +0,0 @@ - - - -Changes in TIFF v3.4beta035 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • support was added installing the HTML documentation -
    • support was added for building the library as a DSO under FreeBSD -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • the interface to the mkversion program was restored to - the form used prior to v3.4beta034 -
    • several portability problems for 16-bit systems were fixed -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.4beta036.html b/tiff/html/v3.4beta036.html deleted file mode 100755 index aa7a876..0000000 --- a/tiff/html/v3.4beta036.html +++ /dev/null @@ -1,117 +0,0 @@ - - - -Changes in TIFF v3.4beta036 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • support was added for building the library as a DSO under HP-UX with - the native C compiler -
    • tools are now built with explicit pathnames for the DSO under IRIX, - Solaris, and Linux -
    • DSO configuration support for Linux was changed to require that - libc.so only be readable (not executable) -
    - -

    - -CHANGES IN LIBTIFF: - -
      -
    • support was add for ICC: NumberOfInks, and ICCProfile -
    • a memory leak caused by doing TIFFSetDirectory(0) was fixed -
    • a bug was fixed whereby certain multi-directory files were not - properly handled when accessed by mapping the data into memory -
    • the strip chopping support is now always compiled - into the library with the default usage controlled by a - STRIPCHOP_DEFAULT configuration parameter -
    • the strip chopping support no longer chops tiled images -
    • all static strings are now const--for shared libraries -
    • the logic for estimating the strip size of images without - a StripByteCounts tag was improved by handling - PlanarContig images differently from PlanarSeparate -
    • a bug was fixed in the G3 codec when converting the Y resolution - of data specified in metric units -
    • a bug was fixed in the G3/G4 decoder for data where lines terminate - with a v0 code -
    • the TIFFRGBAImage support was changed to scale 16-bit colormap - entries more conservatively to avoid problems with applications - that do not generate fully saturated pixel values -
    • the LZW decoder was changed to use a more conservative scheme when - bounds checking the hash table array; this avoids pitfalls with - systems that load objects into memory in unusual locations -
    • a bug was fixed in TIFFPrintDirectory's handling of the - InkNames tag -
    • TIFFPrintDirectory now understands NumberOfInks - and ICC-related tags -
    • the routines for reading image data now provide more useful information - when a read error is encountered -
    • support was added for compiling with Microsoft Visual C++ 4.0 -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • a bug was fixed in pal2rgb's colormap handling -
    • tiff2ps now includes John Wehle's changes for maintaining - the aspect ratio - of images when scaling and for honoring the deadzone on a page when - generating PostScript Level II -
    • tiff2ps does a better job guarding against the mishandling - of greyscale images -
    • tiff2ps now correctly converts X- and Y-resolution values - specified in metric units -
    • tiffdump has a new -m option to control the maximum - number of indirect - data values printed for a tag (by default 24) -
    • tiffdump understands several new tags -
    • tiffdump now shows any terminating null in ASCII strings -
    • tiffinfo now suppresses strip chopping when interpreting an image; - a new -z option has been added to enable strip chopping -
    - - TIFF home page.
    - -
    - -
    -Sam Leffler / sam@engr.sgi.com -Last updated $Date: 1999-08-09 20:21:21 $. -
    - - - diff --git a/tiff/html/v3.5.1.html b/tiff/html/v3.5.1.html deleted file mode 100755 index 9302cbb..0000000 --- a/tiff/html/v3.5.1.html +++ /dev/null @@ -1,75 +0,0 @@ - - - -Changes in TIFF v3.5.1 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • None of consequence -
    - -

    - -CHANGES IN LIBTIFF: - - -
      -
    • Support was added for IPTC Newsphoto metadata (TIFFTAGE_IPTCNEWSPHOTO) -
    • Support was added for photoshop caption handling (TIFFTAG_PHOTOSHOP) -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • Bill Radcliffe's iptcutil was -added to the "contrib" subdirectory . It can convert an IPTC binary -blob to ASCII text and vice-versa. The blob itself can be extracted -from or added to an image with the ImageMagick convert(1) -utility. -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-01-03 01:42:30 $. - - - diff --git a/tiff/html/v3.5.2.html b/tiff/html/v3.5.2.html deleted file mode 100755 index ad70db8..0000000 --- a/tiff/html/v3.5.2.html +++ /dev/null @@ -1,108 +0,0 @@ - - - -Changes in TIFF v3.5.2 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    - -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Corrected alpha versioning. - -
    • Removed distinction between alpha and release targets in Makefile.in. - -
    • Added release.stamp target, which tags cvs tree, and updates - "RELEASE-DATE" - -
    • Added releasediff target, which diffs tree with source as of - date in "RELEASE-DATE" - -
    • Ticked up version to 3.5.2 (alpha 01 -- but I think we'll moving - away from alpha/non-alpha distinctions). - -
    - -

    - -CHANGES IN LIBTIFF: - - -
      -
    • Added IRIX/gcc, and OSF/1 4.x support on behalf of - Albert Chin-A-Young - -
    • Added TIFFReassignTagToIgnore() API on behalf of - Bruce Cameron . Man page still pending. - -
    • pre-remove so link before softlink in LINUXdso action in - libtiff/Makefile.in to avoid failure on LINUXdso builds other than - the first. - -
    • Fixed problem with cvtcmap() in tif_getimage.c modifying the - colormaps owned by the TIFF handle itself when trying to fixup wrong - (eight bit) colormaps. Corrected by maintaining a private copy of - the colormap. - -
    • Added TIFFReadRGBATile()/TIFFReadRGBAStrip() support in - tif_getimage.c. - -
    • Applied "a" mode fix to tif_win32.c/TIFFOpen() as suggested - by Christopher Lawton - -
    • Set O_BINARY for tif_unix.c open() ... used on cygwin for instance. - -
    • Added CYGWIN case in configure. - -
    • Applied Francois Dagand's patch to handle fax decompression bug. - (sizes >= 65536 were failing) -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • Added addtiffo (add overviews to a TIFF file) in contrib. Didn't - put it in tools since part of it is in C++. -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2004-11-26 14:37:20 $. - - - diff --git a/tiff/html/v3.5.3.html b/tiff/html/v3.5.3.html deleted file mode 100755 index 3103a6b..0000000 --- a/tiff/html/v3.5.3.html +++ /dev/null @@ -1,132 +0,0 @@ - - - -Changes in TIFF v3.5.3 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -The ChangeLog will follow, but please note the most important change: -LZW compression has been removed. -

    -Unisys has the patent on LZW compression and have been very active in -their enforcement of late, demanding payments of $5000 or more from -websites using unlicensed software to create GIF's. They could well -do the same do persons using libtiff to create LZW compressed TIFF -images. -

    -From Burn All GIF's Day: -
    -The catch is that it appears to be difficult or impossible to get a -Unisys license to use LZW in free software that complies with the Open -Source Definition -

    -Unfortunatly, the removal of LZW compression means that saved image size has -grown dramatically. Without a change in the TIFF spec to support -another lossless compression format, this is unavoidable. -

    -The library can use zip for lossless compression, but as this is not -part of the spec, TIFFs using zip compression may not work with other -software -

    -We will be making a patch available that will contain the LZW -compression code for users who have either obtained a license from -Unisys or are willing to risk it. -

    -LZW decompression is unchanged. -

    -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Added zip creation to release makefile target - - -
    - -

    - -CHANGES IN LIBTIFF: - - -
      - -
    • Added html for TIFFWriteTile.3t man page. - -
    • Added some changes to tif_write.c to support rewriting existing - fixed sized tiles and strips. Code mods disabled by default, only - enabled if REWRITE_HACK is defined for now. - -
    • Added TIFFWriteTile.3t man page. - -
    • Added notes on use of makefile.vc in build.html, and fixed - email subscription address. - -
    • Fixed apocalypse-inducing y2k bug in contrib/ras/ras2tiff.c - -
    • Did some casts cleaning up to reduce compiler warnings in tif_fax3.c, - from Bruce Carmeron -- modifications of - changes made by Frank (sun cc still complained on cast). - -
    • fixed various VC++ warnings as suggested by Gilles Vollant - . - -
    • Modified TIFFquery.3t man pages info on TIFFIsByteSwapped() to - not imply applications are responsible for image data swapping. - -
    • HTML-ized the man pages, added to html/man - -
    • Removed LZW Compression to comply with Unisys patent extortion. - -
    • Corrected one remaining 16 -> 32 bit value in tif_fax3.c, - From Ivo Penzar Added patch from Ivo Penzar to have TiffAdvanceDirectory handle - memory mapped files. -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • Fixed apocalypse-inducing y2k bug in contrib/ras/ras2tiff.c -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2004-11-26 14:37:20 $. - - - diff --git a/tiff/html/v3.5.4.html b/tiff/html/v3.5.4.html deleted file mode 100755 index 7b06daf..0000000 --- a/tiff/html/v3.5.4.html +++ /dev/null @@ -1,88 +0,0 @@ - - - -Changes in TIFF v3.5.4 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • None - - -
    - -

    - -CHANGES IN LIBTIFF: - - -
      - -
    • Added Pixar tag support. Contributed by Phil Beffery - -
    • Made one more change to tif_dir.c for removal of LZW compression. Also added notice - when LZW compression invoked. - -
    • Fixed bug that caused LZW (non) compression to segfault. Added - warning about LZW compression removed being removed, and why. - -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • Changed default compression in tools to TIFF_PACKBITS, and changed usage descriptions - in tools to reflect removal of LZW compression - -
    • Added nostrip to install in tools/Makefile.in so that debugging - symbols are kept. - -
    • Made Packbits the default compression in tools/tiff2rgba.c instead - of LZW. - - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-01-03 01:45:41 $. - - - diff --git a/tiff/html/v3.5.5.html b/tiff/html/v3.5.5.html deleted file mode 100755 index 38b1f6d..0000000 --- a/tiff/html/v3.5.5.html +++ /dev/null @@ -1,155 +0,0 @@ - - - -Changes in TIFF v3.5.5 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • configure: added test for libc6 for linux targets. Bug reported by - Stanislav Brabec - -
    • configure: fixed bugs in sed scripts - (applied sed script s:/@:s;@:;s:/s;;:;: to configure). - fix submitted by Stanislav Brabec - -
    • tools/iptcutil was not in files list, and wasn't being - added to tar archive. Updated Makefile.in. - -
    • Added 3.5 docs to html/Makefile.in. - Thanks to Stanislav Brabec - -
    • Fixed tools/tiffcmp so that stopondiff testing works. - Patch care of Joseph Orost . - -
    • Added fax3sm_winnt.c to distribution list in Makefile.in. - -
    • Added libtiff/libtiff.def to TIFFILES distribution list. -
    - -

    - -CHANGES IN LIBTIFF: - - -
      -
    • tif_fax3.c: Fixed serious bug introduced during the uint16->uint32 - conversion for the run arrays. - -
    • Set td_sampleformat default to SAMPLEFORMAT_UINT instead of - SAMPLEFORMAT_VOID in TIFFDefaultDirectory() in tif_dir.c. - -
    • Added "GetDefaulted" support for TIFFTAG_SAMPLEFORMAT in tif_aux.c. - -
    • Patched tif_fax3.c so that dsp->runs is allocated a bit bigger - to avoid overruns encountered with frle_bug.tif. - - -
    • Modified tif_unix.c to support 2-4GB seeks if USE_64BIT_API is - set to 1, and added default (off) setting in tiffconf.h. This - should eventually be set by the configure script somehow. - - The original work on all these 2-4GB changes was done by - Peter Smith (psmith@creo.com). - -
    • Modified tif_win32.c to support 2-4GB seeks. - -
    • tentatively changed toff_t to be unsigned instead of signed to - facilitate support for 2-4GB files. - -
    • Updated a variety of files to use toff_t. Fixed some mixups - between toff_t and tsize_t. - -
    • Set tif_rawdatasize to zero when freeing raw data buffer in - TIFFWriteDirectory(). - -
    • Enabled "REWRITE_HACK" in tif_write.c by default. - -
    • Fix bug in tif_write.c when switching between reading one directory - and writing to another. - -
    • Made TIFFWriteCheck() public, and added TIFFCreateDirectory() - -
    • Added TIFFmemory(3t) functions to libtiff.def. - -
    • Added libtiff/libtiff.def to TIFFILES distribution list. -
    - -

    - -CHANGES IN THE TOOLS: - -
      -
    • fax2ps: Fixed mixup of width and height in bounding box statement - as per submission by Nalin Dahyabhai . - -
    • fax2ps: Modified printruns to take uint32 instead of uint16. - Patch courtesy of Bernt Herd - - -
    • Largely reimplemented contrib/addtiffo to avoid temp files, - updating the TIFF file in place. Fixed a few other bugs to. - -
    • Altered descriptions in tools to reflect "by default" lzw not supported -
    - -

    - -CHANGES IN THE LZW COMPRESSION KIT -
      -
    • created mangle-src.sh -- sed scripts to munge src into LZW enabled format. Thanks to Stanislav Brabec - -
    • created Makefile - -
    • merged tif_dir.c with current source. - - -
    • Created lzw compression kit, as a new CVS module (libtiff-lzw-compression-kit). - -
    • Updated index.html to note lzw compression kit. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2004-11-26 14:37:20 $. - - - diff --git a/tiff/html/v3.5.6-beta.html b/tiff/html/v3.5.6-beta.html deleted file mode 100755 index d4933a8..0000000 --- a/tiff/html/v3.5.6-beta.html +++ /dev/null @@ -1,185 +0,0 @@ - - - -Changes in TIFF v3.5.6 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • Added GNULDdso target and switched linux and freebsd to use it. -
    • tools/Makefile.in: Modified to install properly on SGI. -
    • configure: Fixed DSO test for Linux as per patch from - Jan Van Buggenhout . - -
    - -

    - -CHANGES IN LIBTIFF: - - -
      - -
    • tif_dir.c: Clear TIFF_ISTILED flag in TIFFDefaultDirectory - as per http://bugzilla.remotesensing.org/show_bug.cgi?id=18 - from vandrove@vc.cvut.cz. - -
    • Modified tif_packbits.c decoding to avoid overrunning the - output buffer, and to issue a warning if data needs to be - discarded. See http://bugzilla.remotesensing.org/show_bug.cgi?id=18 - -
    • Modified TIFFClientOpen() to emit an error on an attempt to - open a comperessed file for update (O_RDWR/r+) access. This is - because the compressor/decompressor code gets very confused when - the mode is O_RDWR, assuming this means writing only. See - bug http://bugzilla.remotesensing.org/show_bug.cgi?id=13 - -
    • Applied patch for 0x0000 sequences in tif_fax3.h's definition - of EXPAND1D() as per bug 11 (from Roman). - -
    • Fixed tiffcomp.h to avoid win32 stuff if unix #defined, to improve - cygwin compatibility. - -
    • Applied patch from Roman Shpount to tif_fax3.c. This seems to - be a proper fix to the buffer sizing problem. See - http://bugzilla.remotesensing.org/show_bug.cgi?id=11 - -
    • Fixed tif_getimage.c to fix overrun bug with YCbCr images without - downsampling. http://bugzilla.remotesensing.org/show_bug.cgi?id=10 - Thanks to Nick Lamb for reporting the - bug and proving the patch. - -
    • Fixed tif_jpeg.c so avoid destroying the decompressor before - we are done access data thanks to bug report from: - Michael Eckstein . - -
    • tif_open.c: Don't set MMAP for O_RDWR files. - -
    • tif_open.c: Set STRIPCHOP_DEFAULT for O_RDWR as well as O_RDONLY - so that files opened for update can be strip chopped too. - -
    • tif_read.c: fixed up bug with files missing rowsperstrip and - the strips per separation fix done a few weeks ago. - -
    • Tentatively added support for SAMPLEFORMAT_COMPLEXIEEEFP, and - SAMPLEFORMAT_COMPLEXINT. - -
    • index.html, bugs.html: added bugzilla info. - -
    • tif_read.c: fix subtle bug with determining the number of - rows for strips that are the last strip in a separation but - not the last strip of all in TIFFReadEncodedStrip(). - -
    • Applied 16/32 bit fix to tif_fax3.c. Fix supplied by - Peter Skarpetis - -
    • Modified tiffio.h logic with regard to including windows.h. It - won't include it when building with __CYGWIN__. - -
    • README: update to mention www.libtiff.org, don't list Sam's old - email address. - -
    • libtiff/tif_dirread.c: Don't use estimate strip byte count for - one tile/strip images with an offset, and byte count of zero. These - could be "unpopulated" images. - -
    • tif_win32.c: Applied patch to fix overreads and ovverwrites - caught by BoundsChecker. From Arvan Pritchard - (untested). - -
    • tif_getimage.c: Applied patch to silence VC6 warnings. From - Arvan Pritchard - -
    • tif_lzw.c: Applied patch to silence VC6 warnings. From - Arvan Pritchard - -
    • libtiff/tif_apple.c: Applied "Carbon" support patches supplied by - Leonard Rosenthol . May interfere - with correct building on older systems. If so, please let me know. - - -
    - -

    - -CHANGES IN THE TOOLS: - -
      - -
    • tools/rgb2ycbcr.c: fixed output strip size to account for vertical - roundup if rows_per_strip not a multiple of vertical sample size. - -
    • tools/tiffsplit.c: Copy TIFFTAG_SAMPLEFORMAT. - -
    • Modified tiff2bw to ensure portions add to 100%, and that - white is properly recovered. See bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=15 Patch - c/o Stanislav Brabec - -
    - -

    - -CHANGES IN CONTRIB: - -
      - -
    • contrib/addtiffo: Added "averaging" resampling option. - -
    • Added contrib/stream (stream io) code submitted by Avi Bleiweiss. - -
    - -

    - -CHANGES IN THE LZW COMPRESSION KIT -
      - -
    • updated tif_dir.c to reflect changes to no-lzw tif_dir.c - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-03-18 17:12:47 $. - - - diff --git a/tiff/html/v3.5.7.html b/tiff/html/v3.5.7.html deleted file mode 100755 index 84dff1a..0000000 --- a/tiff/html/v3.5.7.html +++ /dev/null @@ -1,259 +0,0 @@ - - - -Changes in TIFF v3.5.7 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • libtiff/libtiff.def: Brent Roman submitted new version adding -serveral missing entry points. Also add a few other entry points -later. - -
    • configure, Makefile.in, etc: added support for OPTIMIZER being - set from config.site. -
    • config.guess: updated wholesale to an FSF version apparently - from 1998 (as opposed to 1994). This is mainly inspired by - providing for MacOS X support. - -
    • configure/config.site: modified to check if -lm is needed for - MACHDEPLIBS if not supplied by config.site. Needed for Darwin. -
    • libtiff/tiff.h: Applied hac to try and resolve the problem - with the inttypes.h include file on AIX. (Bug 39) - -
    • configure, *Makefile.in: Various changes to improve configuration - for HP/UX specifically, and also in general. (Bug 40) They include: -
        -
      • Try to handle /usr/bin/sh instead of /bin/sh where necessary. -
      • Upgrade to HP/UX 10.x+ compiler, linker and dso options. -
      • Fixed mmap() test to avoid MMAP_FIXED ... it isn't available on HP -
      • Use -${MAKEFLAGS} in sub makes from makefiles. -
      • Fixed SCRIPT_SH/SHELL handling. -
      -
    • configure: Changes for DSO generation on AIX provided by - John Marquart . - -
    • configure, libtiff/Makefile.in: Modified to build DSOs properly - on Darwin thanks to Robert Krajewski (rpk@alum.mit.edu) and - Keisuke Fujii (fujiik@jlcuxf.kek.jp). - -
    • configure, libtiff/Makefile.in: applied OpenBSD patches as per bug 61. - -
    • Makefile.in: added DESTDIR support as per bug 60. - -
    • libtiff/tif_jpeg.c: Define HAVE_BOOLEAN on windows if RPCNDR.H - has been included. -
    • man/Makefile.in: add TIFFClientOpen link as per debian submitted - bug 66. -
    • libtiff/Makefile.in: Fixed @DSOSUB_VERSION to be @DSOSUF_VERSION@ - in two places. -
    - -

    - - - -CHANGES IN LIBTIFF: - - -
      -
    • tif_fax3.c: keep rw_mode flag internal to fax3 state to remember - whether we are encoding or decoding. This is to ensure graceful - recovery if TIFFClientOpen() discovers an attempt to open a compressed - file for "r+" access, and subsequently close it, as it resets the - tif_mode flag to O_RDONLY in this case to avoid writes, confusing the - compressor's concept of whether it is in encode or decode mode. -
    • tif_luv.c/tiff.h/tiffio.h: - New version of TIFF LogLuv (SGILOG) modules contributed by Greg Ward - (greg@shutterfly.com). He writes: - -
        -
      1. I improved the gamut-mapping function in tif_luv.c for imaginary - colors, because some images were being super-saturated on the input - side and this resulted in some strange color shifts in the output. - -
      2. I added a psuedotag in tiff.h to control random dithering during - LogLuv encoding. This is turned off by default for 32-bit LogLuv and - on for 24-bit LogLuv output. Dithering improves the average color - accuracy over the image. - -
      3. I added a #define for LOG_LUV_PUBLIC, which is enabled by default in - tiffio.h, to expose internal routines for converting between LogLuv and - XYZ coordinates. This is helpful for writing more efficient, - specialized conversion routines, especially for reading LogLuv files. -
      - -
    • libtiff/tif_dirinfo.c: don't declare tiffFieldInfo static on VMS. - -
    • Added TIFFTAG_COPYRIGHT support. -
    • tif_getimage.c: Added support for 16bit minisblack/miniswhite - images in RGBA interface. -
    • libtiff/tif_dirinfo.c: removed duplicate TIFFTAG_PHOTOSHOP as per - bug 44. -
    • libtiff/tif_dirwrite.c: Added support for TIFF_VARIABLE2 in the - case of writing TIFF_BYTE/TIFF_SBYTE fields as per bug 43. - -
    • libtiff/tif_dirinfo.c: Modified the TIFF_BYTE definition for - TIFFTAG_PHOTOSHOP to use a writecount of TIFF_VARIABLE2 (-3) to - force use of uint32 counts instead of short counts. - -
    • libtiff/tif_dirinfo.c: moved pixar and copyright flags to - ensure everything is in order. - -
    • Integrated experimental OJPEG support from Scott Marovich of HP. - -
    • libtiff/tif_open.c: Seek back to zero after failed read, - before writing header. - -
    • libtiff/tiff.h, libtiff/tif_fax3.c: added check for __LP64__ - when checking for 64 bit architectures as per bugzilla bug 67. -
    • libtiff/tif_getimage.c: Use memmove() instead of TIFFmemcpy() - in TIFFReadRGBATile() to avoid issues in cases of overlapping - buffers. See Bug 69 in Bugzilla. -
    • libtiff/tif_getimage.c: Don't complain for CMYK (separated) - images with more than four samples per pixel as per bug 73. - -
    • libtiff/tif_getimage.c: relax handling of contig case where -there are extra samples that are supposed to be ignored as per bug 75. This -should now work for 8bit greyscale or palletted images. - -
    • libtiff/tif_packbits.c: fixed memory overrun error as per bug 77. - -
    • libtiff/tif_getimage.c: Fixed problem with reading strips or -tiles that don't start on a tile boundary. Fix contributed by -Josep Vallverdu (from HP), and further described in bug 47. - -
    • libtif/tif_fax3.c: Removed #ifdef PURIFY logic, and modified to - always use the "safe" version, even if there is a very slight - cost in performance as per bug 54. -
    • libtiff/tif_lzw.c: added dummy LZWSetupEncode() to report an - error about LZW not being available. - -
    • libtiff/tif_dir.c: propagate failure to initialize compression - back from TIFFSetField() as an error status, so applications can - detect failure. - -
    • libtiff/tif_lzw.c: Avoid MS VC++ 5.0 optimization bug as per bug 78. - -
    • libtiff/tif_dirwrite.c: added TIFFRewriteDirectory() function. -Updated TIFFWriteDirectory man page to include TIFFRewriteDirectory. - -
    • libtiff/tiff.h: I have created COMPRESSION_CCITT_T4, - COMPRESSION_CCITT_T6, TIFFTAG_T4OPTIONS and TIFFTAG_T6OPTIONS aliases - in keeping with TIFF 6.0 standard in tiff.h as per bug 83. - -
    • Added PHOTOMETRIC_ITULAB as per bug 90. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • Brent Roman contributed updated tiffcp utility (and tiffcp.1) - with support for extracting subimages with the ,n syntax, and also - adding the -b bias removal flag. -
    • tiff2ps.c/tiff2ps.1: Substantial changes to tiff2ps by - Bruce A. Mallett, including a faster encoder, fixes for level - 2 PostScript, and support for the imagemask operator. -
    • fax2ps.c: Helge (libtiff at oldach.net) submitted fix -that corrects behaviour for non-Letter paper -sizes. (Bug 35) It fixes two problems: -
      - Without scaling (-S) the fax is now centered on the page size specified - with -H and/or -W. Before, fax2ps was using an obscure and practially - useless algorithm to allocate the image relative to Letter sized paper - which sometime sled to useless whitespace on the paper, while at the - same time cutting of the faxes printable area at the opposite border. -
      - - Second, scaling now preserves aspect ratio, which makes unusual faxes - (in particular short ones) print properly. - -
    • thumbnail.c: changed default output compression - to packbits from LZW since LZW isn't generally available. -
    • tiff2rgba.c: added -n flag to avoid emitting alpha component. Also added -a man page for tiff2rgba. - -
    • tiffcmp.c: Fixed multi samples per pixel support for ContigCompare -as per bug 53. -Updated bug section of tiffcmp.1 to note tiled file issues. - -
    • libtiff/tif_getimage.c: Fixed so that failure is properly - reported by gtTileContig, gtStripContig, gtTileSeparate and - gtStripSeparate as per bug 51. - - -
    - -

    - - - -CHANGES IN THE LZW COMPRESSION KIT: -
      -
    • Rewrote lzw patching process so that is required to enable full - LZW support is to drop the tif_lzw.c from the - libtiff-lzw-compression-kit over the one in the libtiff directory. - -
    • Some changes were made to make recovery from failure to - initialize the LZW compressor more graceful. - -
    • Note that as distributed libtiff support LZW decompression, but - not LZW compression. -
    - - - -CHANGES IN THE CONTRIB AREA: -
      -
    • Fixed distribution to include contrib/addtiffo/tif_ovrcache.{c,h}. -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2004-11-26 14:37:20 $. - - - diff --git a/tiff/html/v3.6.0.html b/tiff/html/v3.6.0.html deleted file mode 100755 index 4d65197..0000000 --- a/tiff/html/v3.6.0.html +++ /dev/null @@ -1,434 +0,0 @@ - - - -Changes in TIFF v3.6.0 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • New utility raw2tiff -for converting raw rasters into TIFF files. -
    • Lots of new tiff2ps options. -
    • Lots of new fax2tiff options. -
    • Lots of bug fixes for LZW, JPEG and OJPEG compression. -
    - -

    Custom Tag Support

    - -The approach to extending libtiff with custom tags has changed radically. -Previously, all internally supported TIFF tags had a place in the -private TIFFDirectory structure within libtiff to hold the values (if read), -and a "field number" (ie. FIELD_SUBFILETYPE) used to identify that tag. -However, every time a new tag was added to the core, the size of the -TIFFDirectory structure would changing, breaking any dynamically linked -software that used the private data structures.

    - -Also, any tag not recognised -by libtiff would not be read and accessable to applications without some -fairly complicated work on the applications part to pre-register the tags -as exemplified by the support for "Geo"TIFF tags by libgeotiff layered on -libtiff.

    - -Amoung other things this approach required the extension code -to access the private libtiff structures ... which made the higher level -non-libtiff code be locked into a specific version of libtiff at compile time. -This caused no end of bug reports!

    - -The new approach is for libtiff to read all tags from TIFF files. Those that -aren't recognised as "core tags" (those having an associated FIELD_ value, -and place for storage in the TIFFDirectory structure) are now read into a -dynamic list of extra tags (td_customValues in TIFFDirectory). When a new -tag code is encountered for the first time in a given TIFF file, a new -anonymous tag definition is created for the tag in the tag definition list. -The type, and some other metadata is worked out from the instance encountered. -These fields are known as "custom tags".

    - -Custom tags can be set and fetched normally using TIFFSetField() and -TIFFGetField(), and appear pretty much like normal tags to application code. -However, they have no impact on internal libtiff processing (such as -compression). Some utilities, such as tiffcp will now copy these custom -tags to the new output files.

    - -As well as the internal work with custom tags, new C API entry points -were added so that extension libraries, such as libgeotiff, could -define new tags more easily without accessing internal data structures. -Because tag handling of extension tags is done via the "custom fields" -mechanism as well, the definition provided externally mostly serves to provide -a meaningful name for the tag. - -The addition of "custom tags" and the altered approach to extending libtiff -with externally defined tags is the primary reason for the shift to the -3.6.x version number from 3.5.x.

    - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • configure, config.site: Fix for large files (>2GiB) support. New -option in the config.site: LARGEFILE="yes". Should be enougth for the large -files I/O. - -
    • configure: Set -DPIXARLOG_SUPPORT option along with -DZIP_SUPPORT. - -
    • html/Makefile.in: Updated to use groffhtml for generating html pages -from man pages. - -
    • configure, libtiff/Makefile.in: Added SCO OpenServer 5.0.6 support -from John H. DuBois III. - -
    • libtiff/{Makefile.vc, libtiff.def}: Missed declarations added. - -
    • libtiff/Makefile.in, tools/Makefile.in: Shared library will not be -stripped when installing, utility binaries will do be stripped. As per bug 93. - -
    • man/Makefile.in: Patch DESTDIR handling as per bug 95. - -
    • configure: OpenBSD changes for Sparc64 and DSO version as per bug 96. - -
    • config.site/configure: added support for OJPEG=yes option to enable -OJPEG support from config.site. - -
    • config.guess, config.sub: Updated from ftp.gnu.org/pub/config. - -
    • configure: Modify CheckForBigEndian so it can work in a cross -compiled situation. - -
    • configure, libtiff/Makefile.in: Changes for building on MacOS 10.1 -as per bug 94. - -
    • html/Makefile.in: added missing images per bug 92. - -
    • port/Makefile.in: fixed clean target per bug 92. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • libtiff/tif_getimage.c: New function TIFFReadRGBAImageOriented() -implemented to retrieve raster array with user-specified origin position. - -
    • libtiff/tif_fax3.c: Fix wrong line numbering. - -
    • libtiff/tif_dirread.c: Check field counter against number of fields. - -
    • Store a list of opened IFD to prevent directory looping. - -
    • libtiff/tif_jpeg.c: modified segment_height calculation to always -be a full height tile for tiled images. Also changed error to just -be a warning. - -
    • libtiff/tif_lzw.c: fixed so that decoder state isn't allocated till -LZWSetupDecode(). Needed to read LZW files in "r+" mode. - -
    • libtiff/tif_dir.c: fixed up the tif_postdecode settings responsible -for byte swapping complex image data. - -
    • libtiff/tif_open.c: Removed error if opening a compressed file -in update mode bug (198). - -
    • libtiff/tif_write.c: TIFFWriteCheck() now fails if the image is -a pre-existing compressed image. That is, image writing to pre-existing -compressed images is not allowed. - -
    • html/man/*.html: Web pages regenerated from man pages. - -
    • libtiff/tif_jpeg.c: Hack to ensure that "boolean" is defined properly -on Windows so as to avoid the structure size mismatch error from libjpeg -(bug 188). - -
    • libtiff/tiff.h: #ifdef USING_VISUALAGE around previous Visual Age -AIX porting hack as it screwed up gcc. (bug 39) - -
    • libtiff/tiff.h: added COMPRESSION_JP2000 (34712) for LEAD tools -custom compression. - -
    • libtiff/tif_dirread.c: Another fix for the fetching SBYTE arrays -by the TIFFFetchByteArray() function. (bug 52) - -
    • libtiff/tif_dirread.c: Expand v[2] to v[4] in TIFFFetchShortPair() -as per bug 196. - -
    • libtiff/tif_lzw.c: Additional consistency checking added in -LZWDecode() and LZWDecodeCompat() fixing bugs 190 and 100. - -
    • libtiff/tif_lzw.c: Added check for valid code lengths in LZWDecode() -and LZWDecodeCompat(). Fixes bug 115. - -
    • tif_getimage.c: Ensure that TIFFRGBAImageBegin() returns the -return code from the underlying pick function as per bug 177. - -
    • libtiff/{tif_jpeg.c,tif_strip.c,tif_print.c}: Hacked tif_jpeg.c to -fetch TIFFTAG_YCBCRSUBSAMPLING from the jpeg data stream if it isn't -present in the tiff tags as per bug 168. - -
    • libtiff/tif_jpeg.c: Fixed problem with setting of nrows in -JPEGDecode() as per bug 129. - -
    • libtiff/tif_read.c, libtiff/tif_write.c: TIFFReadScanline() and -TIFFWriteScanline() now set tif_row explicitly in case the codec has -fooled with the value as per bug 129. - -
    • libtiff/tif_ojpeg.c: Major upgrade from Scott. Details in bug 156. - -
    • libtiff/tif_open.c: Pointers to custom procedures -in TIFFClientOpen() are checked to be not NULL-pointers. - -
    • libtiff/tif_lzw.c: Assertions in LZWDecode and LZWDecodeCompat -replaced by warnings. Now libtiff should read corrupted LZW-compressed -files by skipping bad strips as per bug 100. - -
    • libtiff/: tif_dirwrite.c, tif_write.c, tiffio.h: -TIFFCheckpointDirectory() -routine added as per bug 124. The -TIFFWriteDirectory -man page discusses this new function as well as the related -TIFFRewriteDirectory(). - -
    • libtiff/: tif_codec.c, tif_compress.c, tiffiop.h, tif_getimage.c: -Introduced -additional members tif->tif_decodestatus and tif->tif_encodestatus -for correct handling of unconfigured codecs (we should not try to read -data or to define data size without correct codecs). See bug 119. - -
    • tif_dirread.c: avoid div-by-zero if rowbytes is zero in chop func as -per bug 111. - -
    • libtiff/: tiff.h, tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, -tif_dirwrite.c: Dwight Kelly added get/put code for new tag XMLPACKET as -defined in Adobe XMP Technote. Added missing INKSET tag value from TIFF 6.0 -spec INKSET_MULTIINK (=2). Added missing tags from Adobe TIFF technotes: -CLIPPATH, XCLIPPATHUNITS, YCLIPPATHUNITS, OPIIMAGEID, OPIPROXY and -INDEXED. Added PHOTOMETRIC tag value from TIFF technote 4 ICCLAB (=9). - -
    • libtiff/tif_getimage.c: Additional check for supported codecs added in -TIFFRGBAImageOK, TIFFReadRGBAImage, TIFFReadRGBAStrip and TIFFReadRGBATile now -use TIFFRGBAImageOK before reading a per bug 110. - -
    • libtiff/: tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_dirread.c, -tif_dirwrite.c: Added routine -TIFFDataWidth for determining -TIFFDataType sizes instead of working with tiffDataWidth array -directly as per bug 109. - -
    • libtiff/: tif_dirinfo.c, tif_dirwrite.c: Added possibility to -read broken TIFFs with LONG type used for TIFFTAG_COMPRESSION, -TIFFTAG_BITSPERSAMPLE, TIFFTAG_PHOTOMETRIC as per bug 99. - -
    • libtiff/{tiff.h,tif_fax3.c}: Add support for __arch64__ as per bug 94. - -
    • libtiff/tif_read.c: Fixed TIFFReadEncodedStrip() to fail if the -decodestrip function returns anything not greater than zero as per bug 97. - -
    • libtiff/tif_jpeg.c: fixed computation of segment_width for -tiles files to avoid error about it not matching the -cinfo.d.image_width values ("JPEGPreDecode: Improper JPEG strip/tile -size.") for ITIFF files. Apparently the problem was incorporated since -3.5.5, presumably during the OJPEG/JPEG work recently. - -
    • libtiff/tif_getimage.c: If DEFAULT_EXTRASAMPLE_AS_ALPHA is 1 -(defined in tiffconf.h - 1 by default) then the RGBA interface -will assume that a fourth extra sample is ASSOCALPHA if the -EXTRASAMPLE value isn't set for it. This changes the behaviour of -the library, but makes it work better with RGBA files produced by -lots of applications that don't mark the alpha values properly. -As per bugs 93 and 65. - -
    • libtiff/tif_jpeg.c: allow jpeg data stream sampling values to -override those from tiff directory. This makes this work with -ImageGear generated files. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • tiff2ps: Added page size setting -when creating PS Level 2. - -
    • tiff2ps: Fixed PS comment emitted when -FlateDecode is being used. - -
    • tiffsplit: increased the maximum -number of pages that can be split. - -
    • raw2tiff: Added option `-p' to -explicitly select color space of input image data. - -
    • tiffmedian: Suppiort for large -(> 2GB) images. - -
    • ppm2tiff: Fixed possible endless loop. - -
    • tiff2rgba: Switched to use -TIFFReadRGBAImageOriented() -instead of TIFFReadRGBAImage(). - -
    • tiffcmp: Fixed problem with unused data -comparing (bug 349). `-z' option now can be used to set the number of reported -different bytes. - -
    • tiffcp: Added possibility to specify -value -1 to -r option to get the entire image as one strip (bug 343). - -
    • tiffcp: Set the correct RowsPerStrip -and PageNumber values (bug 343). - -
    • fax2tiff: Page numbering fixed (bug -341). - -
    • ppm2tiff: PPM header parser improved: -now able to skip comments. - -
    • tiff2ps: Force deadzone printing when -EPS output specified (bug 325). - -
    • tiff2ps: Add ability to generate -PS Level 3. It basically allows one to use the /flateDecode filter for ZIP -compressed TIFF images. Patch supplied by Tom Kacvinsky (bug 328). - -
    • tiffcp: Fixed problem with colorspace -conversion for JPEG encoded images (bugs 23 and 275) - -
    • fax2tiff: Applied patch from -Julien Gaulmin. More switches for fax2tiff tool for better control -of input and output (bugs 272 and 293). - -
    • raw2tiff: -New utility for turning raw raster images into TIFF files -written by Andrey Kiselev. - -
    • tiff2ps: -Sebastian Eken provided patches (bug 200) to add new these new -switches: -
        -
      • -b #: for a bottom margin of # inches -
      • -c: center image -
      • -l #: for a left margin of # inches -
      • -r: rotate the image by 180 degrees -
      - -Also, new features merged with code for shrinking/overlapping. - -
    • tiff2ps: Don't emit BeginData/EndData -DSC comments since we are unable to properly include the amount to skip -as per bug 80. - -
    • tiff2ps: Added workaround for some -software that may crash when last strip of image contains fewer number -of scanlines than specified by the `/Height' variable as per bug 164. - -
    • tiff2ps: Patch from John Williams to add new -functionality for tiff2ps utility splitting long images in several pages as -per bug 142. New switches: -
        -
      • -H #: split image if height is more than # inches -
      • -L #: overLap split images by # inches -
      - -
    • tiff2ps: New commandline -switches to override resolution units obtained from the input file per bug 131: -
        -
      • -x: override resolution units as centimeters -
      • -y: override resolution units as inches -
      - -
    • fax2tiff: Updated to reflect -latest changes in libtiff per bug 125. - -
    • tiff2ps: Division by zero fixed as per bug 88. - -
    • tiffcp: -Added support for 'Orientation' tag. - -
    • tiffdump: -include TIFFTAG_JPEGTABLES in tag list. - -
    • tiffset: fix bug in error reporting. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: -
      - -
    • Fixed distribution to include contrib/addtiffo/tif_ovrcache.{c,h}. -
    • libtiff/contrib/win95: renamed to contrib/win_dib. Added new -Tiffile.cpp example of converting TIFF files into a DIB on Win32 as per -bug 143. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • LZW compression kit synchronized with actual libtiff version. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2003-10-04 11:38:17 $. - - - diff --git a/tiff/html/v3.6.1.html b/tiff/html/v3.6.1.html deleted file mode 100755 index 58e5605..0000000 --- a/tiff/html/v3.6.1.html +++ /dev/null @@ -1,199 +0,0 @@ - - - -Changes in TIFF v3.6.1 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - - - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • libtiff/makefile.vc, tools/makefile.vc: Support for IJG JPEG library. - -
    • Makefile.in: Add an absolute path to the test_pics.sh call. - -
    • Makefile.in: Add an absolute path to the test_pics.sh call. - -
    • libtiff/tiffcomp.h: #define _BSDTYPES_DEFINED when defining BSD typedefs. - -
    • configure, libtiff/{Makefile.in, mkversion.c}: Relative buildings fixed. - -
    • Makefile.in: Add an absolute path to the test_pics.sh call. - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: Added support -for ReferenceBlackWhite tag handling when converted from YCbCr color space as -per bug 120. - -
    • libtiff/{tif_getimage.c, tif_aux.c}: Read WhitePoint tag from the -file and properly use it for CIE Lab 1976 to RGB transform. - -
    • libtiff/{tif_getimage.c, tiffio.h}: Finally resolved problems with -orientation handling. TIFFRGBAImage interface now properly supports all -possible orientations, i.e. images will be flipped both in horizontal and -vertical directions if required. 'Known bugs' section now removed from the -appropriate manual pages. - -
    • libtiff/tif_luv.c: Fixed bug in 48-bit to 24-bit conversion routine, -reported by Antonio Scuri. - -
    • libtiff/{tiffio.h, tif_codec.c}: Added new function -TIFFIsCODECConfigured(), suggested by Ross Finlayson. - -
    • libtiff/tif_ojpeg.c: TIFFVGetField() function now can properly extract -the fields from the OJPEG files. Patch supplied by Ross Finlayson. - -
    • libtiff/tif_dir.h: _TIFFFindOrRegisterdInfo declaration replaced -with _TIFFFindOrRegisterFieldInfo as reported by Ross Finlayson. - -
    • libtiff/tif_dirinfo.c: Implemented binary search in _TIFFMergeFieldInfo(). -Patch supplied by Ross Finlayson. - -
    • tif_dirread.c: do not mark all anonymously defined tags to be IGNOREd (as -it was done in 3.6.0). - -
    • libtiff/{tiff.h, tif_dirinfo.c}: Added support for IFD (13) datatype, -intruduced in "Adobe PageMaker TIFF Technical Notes". - -
    • libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: New color space -conversion code: CIE L*a*b* 1976 images now supported by the TIFFRGBAImage -interface. YCbCr to RGB conversion code also moved there and now has -publicly available interface. These -routines currently used in TIFFRGBAImage interface only and not supported in -other libtiff tools yet. So if you want, for example, to convert CIE Lab image -into PostScript file you should do it in two steps: chnge colorspace to RGB -using tiff2rgba utility abd then process -it with the tiff2ps. - -
    • libtiff/tif_tile.c: Remove spurious use of "s" (sample) in the -planarconfig_contig case in TIFFComputeTile() as per bug 387 - -
    • libtiff/tiffiop.h: New macros: TIFFmax and TIFFmin. - -
    • libtiff/{tiffio.h, tif_strip.c}: Added TIFFRawStripSize() function -as suggested by Chris Hanson. - -
    • libtiff/{tif_lzw.c, tif_fax3.c}: Proper support for update mode -as per bug 424. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • tiff2pdf: New tool, written by -Ross Finlayson, to directly convert TIFF files to PDF. - -
    • tiffgt: Unmaintained and platform -dependent sgigt utility removed and replaced with the completely rewritten -portable tiffgt tool (depend on OpenGL and -GLUT). This tool will not build by default. - -
    • ras2tiff: Properly determine -SUN Rasterfiles with the reverse byte order (it is reported by the magic -header field). Problem reported by Andreas Wiesmann. - -
    • raw2tiff: Implemented image size -guessing using correlation coefficient calculation between two neighbour -lines. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: -
      - -
    • contrib/pds/{tif_pdsdirread.c, tif_pdsdirwrite.c}: Use TIFFDataWidth() -function insted of tiffDataWidth array. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • Proper support for update mode as per bug 424. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2003-12-24 22:14:15 $. - - - diff --git a/tiff/html/v3.7.0.html b/tiff/html/v3.7.0.html deleted file mode 100755 index 7397756..0000000 --- a/tiff/html/v3.7.0.html +++ /dev/null @@ -1,144 +0,0 @@ - - - - Changes in TIFF v3.7.0 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • Several bugs found after 3.7.0beta2 release were fixed. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • ltmain.sh: Fix for MinGW compilation. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • libtiff/{tif_dirread.c, tif_jpeg.c, tif_luv.c, tif_ojpeg.c, - tif_pixarlog.c, tif_write.c}: Handle the zero strip/tile sizes - properly (Dmitry V. Levin, Marcus Meissner). - -
    • libtiff/tif_dirinfo.c: Type of the TIFFTAG_SUBIFD field changed - to TIFF_IFD. - -
    • Preliminary support for BigTIFF files: now libtiff can - recognize and reject to open such images. ;-) - -
    • libtiff/tif_dir.c: Initialize td_tilewidth and td_tilelength fields - of the TIFFDirectory structure with the 0 instead of -1 to avoid - confusing integer overflows in TIFFTileRowSize() for striped images. - -
    • libtiff/tif_dir.c: Initialize td_tilewidth and td_tilelength fields - of the TIFFDirectory structure with the 0 instead of -1 to avoid - confusing integer overflows in TIFFTileRowSize() for striped images. - -
    • libtiff/tif_dirinfo.c: Fix bug with tif_foundfield and reallocation - of tif_fieldinfo as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=630 - -
    • libtiff/tif_compress.c: Improved error reporting in - TIFFGetConfiguredCODECs() (Dmitry V. Levin). - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • tiffcmp.c (leof): Renamed from 'eof' in order to avoid - conflict noticed under MinGW. - -
    • tiff2pdf.c: Fixed TransferFunction tag handling reported - by Ross A. Finlayson. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • No changes. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • This one is not longer needed. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2004-12-20 19:31:44 $. - - - diff --git a/tiff/html/v3.7.0alpha.html b/tiff/html/v3.7.0alpha.html deleted file mode 100755 index d18de35..0000000 --- a/tiff/html/v3.7.0alpha.html +++ /dev/null @@ -1,249 +0,0 @@ - - - - Changes in TIFF v3.7.0alpha - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Significant changes in software configuration: we are switched - to GNU autotools now. - -
    • tiffset: tiffset now can set any libtiff supported tags. Tags - can be supplied by the mnemonic name or number. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Get rid of the old configuration system and switch to - GNU autotools. -
    - -

    - - - -CHANGES IN LIBTIFF: - - - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • tiffset: tiffset now can set any libtiff supported tags. Tags - can be supplied by the mnemonic name or number. - -
    • ycbcr.c: fixed main() declaration as per: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=513. - -
    • tiffsplit: Don't forget - to copy Photometric Interpretation tag. - -
    • tiffsplit: Fixed problem with - unproperly written multibyte files. Now output files will be written - using the same byte order flag as in the input image. See - . - -
    • tiffsplit: Copy JPEGTables - tag contents for JPEG compressed images. Reported by Artem Mirolubov. - -
    • tiffcp: Close output file - on normal exit. - -
    • tiffcp: Don't emit warnings - when Orientation tag does not present in the input image. - -
    • tiffcp: Properly set - Photometric Interpretation in case of JPEG compression of grayscale - images. - -
    • tiffcp: Fixed problem with wrong - interpretation of the InkNames tag as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=466. - Memory leak fixed. - -
    • tiffcp: Fixed problem with - wrong Photometric setting for non-RGB images. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • Outdated stuff removed. - -
    • Almost all programs are sinchronized with the current libtiff - and should compile without problems. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • No changes. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-03-18 17:12:47 $. - - - diff --git a/tiff/html/v3.7.0beta.html b/tiff/html/v3.7.0beta.html deleted file mode 100755 index 81701f0..0000000 --- a/tiff/html/v3.7.0beta.html +++ /dev/null @@ -1,162 +0,0 @@ - - - - Changes in TIFF v3.7.0beta - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • LZW compression enabled by default. You don't need the separate - compression kit anymore. - -
    • bmp2tiff: Added new utility to convert Windows BMP files - into TIFFs. - -
    • The first attempt to implement a test suite. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Many portability fixes in the new autotooled build suite. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • libtiff/{tif_luv.c, tif_next.c, tif_thunder.c}: Several buffer - overruns fixed, as noted by Chris Evans. - -
    • BSD data types (u_char, u_short, u_int, u_long) is no longer - used internally in the libtiff. Should result in simpler configuration - and better portability. - -
    • libtiff/tiff.h: Fix column tagging. Reference current Adobe XMP - specification. Reference libtiff bug tracking system to submit - private tag additions. - -
    • libtiff/tif_dirread.c: Don't reject to read tags of the - SamplesPerPixel size when the tag count is greater than number of - samples as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=576. - -
    • libtiff/{tiffio.h, tif_open.c}: Applied patches from - Joris Van Damme to avoid requirement for tiffiop.h inclusion in - some applications. Look for details here: - - http://www.asmail.be/msg0054799560.html. - -
    • libtiff/{tiffiop.h, tif_dirinfo.c}: Fixed problem with the static - variable as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=593. - -
    • libtiff/tif_lzw.c: LZW compression code is merged back from the - separate package. All libtiff tools are updated to not advertise an - abcence of LZW support. - -
    • libtiff/tif_dir.c: Call TIFFError() instead of producing warnings - when setting custom tags by value. Reported by Eric Fieleke. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • tiff2ps: Avoid zero division in setupPageState() function; - properly initialize array in PSDataBW(). - -
    • tiff2pdf: Multiple bugfixes. - -
    • ras2tiff: Fixed issue with missed big-endian checks as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=586. - -
    • bmp2tiff: Added new utility to convert Windows BMP files - into TIFFs. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • No changes. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • This one is not longer needed. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-03-18 17:12:47 $. - - - diff --git a/tiff/html/v3.7.0beta2.html b/tiff/html/v3.7.0beta2.html deleted file mode 100755 index 151524a..0000000 --- a/tiff/html/v3.7.0beta2.html +++ /dev/null @@ -1,131 +0,0 @@ - - - - Changes in TIFF v3.7.0beta2 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • The code has been reviewed by Dmitry Levin: added checks - for values, returned by the space allocation functions, fixed - problems with the possible integer overflows. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Several fixes in the test suite. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • Preliminary support for BigTIFF files: now libtiff can - recognize and reject to open such images. ;-) - -
    • libtiff/tif_dirinfo.c: changed type of XMLPacket (tag 700) to - TIFFTAG_BYTE instead of TIFFTAG_UNDEFINED to comply with the info - in the Adobe XMP Specification. - -
    • Added many checks for integer overflow and for successful space - allocations in the different parts of library. Code review - completed by Dmitry V. Levin. - -
    • libtiff/{tiffio.h, tif_compress.c}: Added - TIFFGetConfiguredCODECs()function to get the list of configured codecs. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • tiff2bw: Write ImageWidth/Height tags to output file, as - noted by Gennady Khokhorin. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • No changes. - -
    - - - -CHANGES IN THE LZW COMPRESSION -KIT: -
      - -
    • This one is not longer needed. - -
    - - TIFF home page.
    - -
    - -Last updated $Date: 2006-03-18 17:12:47 $. - - - diff --git a/tiff/html/v3.7.1.html b/tiff/html/v3.7.1.html deleted file mode 100755 index d3ffb7a..0000000 --- a/tiff/html/v3.7.1.html +++ /dev/null @@ -1,233 +0,0 @@ - - - - Changes in TIFF v3.7.1 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • This is mostly bugfix release. Most important fix is the one - related to wrong custom tag read/write code. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • autogen.sh: aclocal and autoheader should be executed after - libtoolize. Also add '-I .' to aclocal invocation to check - current directory for macros. - -
    • nmake.opt: Link with the user32.lib in windowed mode. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=697 - -
    • nmake.opt, makefile.vc: make it easier to rename the libtiff DLL. - -
    • configure, configure.ac: Added --enable-rpath option to embed - linker paths into library binary. - -
    - -

    - - - -CHANGES IN LIBTIFF: - - - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • fax2ps.c: Be able to extract the first page (#0). As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=690 - -
    • tiff2ps.c: Fixed wrong variable data type when read Position - tags (Tristan Hill). - -
    • tiff2ps.c: Fixed wrong variable data type when read Resolution - tags (Peter Fales). - -
    • tiffset.c: Check the malloc return value (Dmitry V. Levin). - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • No changes. - -
    - -Last updated $Date: 2004-12-20 19:31:44 $. - - - diff --git a/tiff/html/v3.7.2.html b/tiff/html/v3.7.2.html deleted file mode 100755 index 415ee6f..0000000 --- a/tiff/html/v3.7.2.html +++ /dev/null @@ -1,222 +0,0 @@ - - - - Changes in TIFF v3.7.2 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • Maintainance release. Many bugfixes in the build environment - and compatibility improvements. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - - - -

    - - - -CHANGES IN LIBTIFF: - - - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • No changes. - -
    - -Last updated $Date: 2005-03-15 15:17:44 $. - - - diff --git a/tiff/html/v3.7.3.html b/tiff/html/v3.7.3.html deleted file mode 100755 index 0eee449..0000000 --- a/tiff/html/v3.7.3.html +++ /dev/null @@ -1,230 +0,0 @@ - - - - Changes in TIFF v3.7.3 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Replace runtime endianess check with the compile time one. - -
    • Added support for the new predictor type (floating point - predictor), defined at the TIFF Technical Note 3. - -
    • Added Support for custom tags, passed by value. - Added support for all DNG tags. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - - - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • tiffiop.h, tif_open.c: Added open option 'h' to avoid reading - the first IFD when needed. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=875 - -
    • tiff.h: Use correct int size on Sparc 64bit/Sun compiler - platform. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=855 - -
    • tif_dirinfo.c: Added support for ClipPath, XClipPathUnits - and YClipPathUnits tags. - -
    • tif_dirinfo.c, tif_dir.h, tif_dir.c, tif_print.c: Make - DocumentName, Artist, HostComputer, ImageDescription, Make, Model, - Copyright, DateTime, PageName, TextureFormat, TextureWrapModes and - TargetPrinter tags custom. - -
    • tif_jpeg.c: Cleanup the codec state depending on TIFF_CODERSETUP - flag (to fix memory leaks). - -
    • tif_dirwrite.c: Use tdir_count when calling - TIFFCvtNativeToIEEEDouble() in the TIFFWriteDoubleArray() function as - per bug - http://bugzilla.remotesensing.org/show_bug.cgi?id=845 - -
    • tif_dirinfo.c, tif_print.c: TIFFFetchByteArray() returns - uint16 array when fetching the BYTE and SBYTE fields, so we should - consider result as pointer to uint16 array and not as array of chars. - As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=831 - -
    • tif_dir.c: More efficient custom tags retrieval as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=830 - -
    • tif_win32.c: Use FILE_SHARE_READ | FILE_SHARE_WRITE share - mode in CreateFile() call as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=829 - -
    • tif_jpeg.c: Substantial fix for addtiffo problems with - JPEG encoded TIFF files. Pre-allocate lots of space for jpegtables - in directory. - -
    • tif_dirread.c: Changed the code that computes - stripbytecount[0] if it appears bogus to ignore if stripoffset[0] is - zero. This is a common case with GDAL indicating a "null" tile/strip. - -
    • tif_jpeg.c: added LIB_JPEG_MK1 support in JPEGDecodeRaw(). - -
    • tif_dirread.c: Ensure that broken files with too many - values in PerSampleShorts, TIFFFetchPerSampleLongs and - TIFFFetchPerSampleAnys work ok instead of crashing. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=843 - -
    • tif_predict.h, tif_predict.c: Added ability to decode and encode - floating point predictor, as per TIFF Technical Note 3. - See http://chriscox.org/TIFF_TN3_Draft2.pdf for details. - -
    • tiffio.h, tiffiop.h, tif_dir.c, tif_read.c, tif_swab.c: - Added _TIFFSwab24BitData() and TIFFSwabArrayOfLong() functions used to - swap 24-bit floating point values. - -
    • tiff.h: Added predictor constants. - -
    • tiffiop.h, tif_dir.c: Use uint32 type for appropriate values - in _TIFFVSetField() function. Inspired by the bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=816 - -
    • tif_open.c: Do not read header in case the output file should - be truncated (Ron). - -
    • tif_dirinfo.c, tif_config.h.vc: Use lfind() instead of bsearch() - in _TIFFFindFieldInfoByName() function (Ron). - -
    • tif_dir.c, tif_print.c: Properly handle all data types in custom - tags. - -
    • dirinfo.c: Added DNG tags. - -
    • tiff.h: Added missed DNG tag (LensInfo); added DNG 1.1.0.0 tags. - -
    • tif_dir.c, tif_print.c: Added Support for custom tags, passed - by value. - -
    • tiff.h, tif_dirinfo.c, tiffiop.h: Added EXIF related tags. -
    - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}: - Make overviews working for contiguous images. - -
    - -Last updated $Date: 2006-01-04 22:04:46 $. - - - diff --git a/tiff/html/v3.7.4.html b/tiff/html/v3.7.4.html deleted file mode 100755 index 3ef394b..0000000 --- a/tiff/html/v3.7.4.html +++ /dev/null @@ -1,133 +0,0 @@ - - - - Changes in TIFF v3.7.4 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Fixed important bug in custom tags handling code.. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Applied patch from Patrick Welche (all scripts moved in the - 'config' and 'm4' directories). - -
    • SConstruct, libtiff/SConstruct: Added the first very preliminary - support for SCons software building tool (http://www.scons.org/). - This is experimental infrastructure and it will exist along with the - autotools stuff. - -
    • port/lfind.c: Added lfind() replacement module. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • tif_dir.c: When prefreeing tv->value in TIFFSetFieldV - also set it to NULL to avoid double free when re-setting custom - string fields as per: - - http://bugzilla.remotesensing.org/show_bug.cgi?id=922 - -
    • tif_dir.c: Fixed up support for swapping "double complex" - values (128 bits as 2 64 bits doubles). GDAL gcore tests now - pass on bigendian (macosx) system. - -
    • libtiff/{tif_dirread.c, tif_dirinfo.c}: Do not upcast BYTEs to - SHORTs in the TIFFFetchByteArray(). Remove TIFFFetchExtraSamples() - function, use TIFFFetchNormalTag() instead as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=831 - - Remove TIFFFetchExtraSamples() function, use TIFFFetchNormalTag() - instead. - -
    • tif_print.c: Fixed printing of the BYTE and SBYTE arrays. - -
    • tif_write.c: Do not check the PlanarConfiguration field in - the TIFFWriteCheck() function in case of single band images (as per - TIFF spec). - -
    • libtiff/{tif_dir.c, tif_dir.h, tif_dirinfo.c, tif_print.c}: - Make FieldOfViewCotangent, MatrixWorldToScreen, MatrixWorldToCamera, - ImageFullWidth, ImageFullLength and PrimaryChromaticities tags custom. -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • tiffcp.c: Fixed WhitePoint tag copying. -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      -
    • tiffdump.c: Added support for TIFF_IFD datatype. - -
    • addtiffo/{tif_overview.c, tif_ovrcache.c, tif_ovrcache.h}: - Make overviews working for contiguous images. - -
    - -Last updated $Date: 2005-11-03 14:18:43 $. - - - diff --git a/tiff/html/v3.8.0.html b/tiff/html/v3.8.0.html deleted file mode 100755 index ecd5b74..0000000 --- a/tiff/html/v3.8.0.html +++ /dev/null @@ -1,199 +0,0 @@ - - - - Changes in TIFF v3.8.0 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Read-only support for custom directories (e.g. EXIF directory). - -
    • Preliminary support for MS MDI format. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • Make the default strip size configurable via the - --with-default-strip-size and STRIP_SIZE_DEFAULT options. -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • tiffio.h: Added VC_EXTRALEAN definition before including - windows.h, to reduce the compile time. - -
    • tif_jpeg.c: Improve compilation under MinGW. - -
    • {tif_aux.c, tif_dir.c, tif_dir.h, tif_dirwrite.c, - tif_print.c, tif_getimage.c}: Make InkSet, NumberOfInks, DotRange and - StoNits tags custom. - -
    • {tif_aux.c, tif_dir.c, tif_dir.h, tif_print.c}: Make - WhitePoint tag custom. - -
    • tiffio.h: fixed typo that potentially resulted in - redefininition of USE_WIN32_FILEIO - -
    • {tif_dir.c, tif_dir.h, tif_print.c}: Make RichTIFFIPTC, - Photoshop and ICCProfile tags custom. - -
    • libtiff/*, contrib/*: Added 'dual-mode' error handling, enabling - newer code to get context indicator in error handler and still - remain compatible with older code: Done TIFFError calls everywhere - except in tools. - -
    • tiffinfo.c: Print EXIF directory contents if exist. - -
    • {tif_dirinfo.c, tif_dirread.c, tif_dir.h, tif_dir.c}: - Custom directory read-only support. - -
    • {tif_aux.c, tif_dirinfo.c, tif_dirread.c, tif_dir.h, - tif_dir.c, tif_print.c}: Make YCbCrCoefficients and ReferenceBlackWhite - tags custom. - -
    • tif_dirread.c: One more workaround for broken StripByteCounts - tag. Handle the case when StripByteCounts array filled with - completely wrong values. - -
    • tif_dirinfo.c: Release file descriptor in case of failure - in the TIFFOpenW() function as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1003 - -
    • tif_dirinfo.c: Correctly yse bsearch() and lfind() - functions as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1008 - -
    • tif_open.c, tiff.h, tiffdump.c: Incorporate preliminary support - for MS MDI format. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1002 - -
    • libtiff.def, tiffiop.h, tiffio.h: Made TIFFFreeDirectory - public. - -
    • /tif_dirinfo.c: Make XResolution, YResolution and - ResolutionUnit tags modifiable during write process. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=977 - -
    • if_dirread.c: Don't try and split single strips into "0" strips - in ChopUpSingleUncompressedStrip. This happens in some degenerate - cases (like 1x1 files with stripbytecounts==0 (gtsmall.jp2 embed tiff) - -
    • tif_fax3.c: changed 'at scanline ...' style warning/errors - with incorrect use of tif_row, to 'at line ... of - strip/tile ...' style. -
    - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      -
    • contrib/addtiffo/*: Major upgrade by Joris to support subsampled - YCbCr images in jpeg compressed TIFF files. - -
    - -Last updated $Date: 2006-01-04 23:38:38 $. - - - diff --git a/tiff/html/v3.8.1.html b/tiff/html/v3.8.1.html deleted file mode 100755 index 9753093..0000000 --- a/tiff/html/v3.8.1.html +++ /dev/null @@ -1,217 +0,0 @@ - - - - Changes in TIFF v3.8.1 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Bug-fix release. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      -
    • libtool related stuff updated from the 2.1a branch. - -
    • Fix with_default_strip_size comparison as reported by - Norihiko Murase. -
    - -

    - - - -CHANGES IN LIBTIFF: - - - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      -
    - -Last updated $Date: 2006-03-13 14:52:12 $. - - - diff --git a/tiff/html/v3.8.2.html b/tiff/html/v3.8.2.html deleted file mode 100755 index 0422975..0000000 --- a/tiff/html/v3.8.2.html +++ /dev/null @@ -1,137 +0,0 @@ - - - - Changes in TIFF v3.8.2 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • Bug-fix release. -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - - - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • tif_strip.c: Take subsampling in account when calculating - TIFFScanlineSize(). - -
    • tif_jpeg.c, tif_fax3.c, tif_zip.c, tif_pixarlog.c, - tif_lzw.c, tif_luv.c: Use _TIFFSetDefaultCompressionState() in all - codec cleanup methods. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1120 - -
    • tif_jpeg.c: Do not cleanup codec state in TIFFInitJPEG(). As - per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1119 - -
    • tif_dir.c: Use double type instead of dblparam_t. - -
    • tif_dirread.c: Do not check the PlanarConfig tag presence - in TIFFReadDirectory, because it is always set at the start of - function and we allow TIFFs without that tag set. - -
    - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      -
    - -Last updated $Date: 2006-03-23 14:54:01 $. - - - diff --git a/tiff/html/v3.9.0beta.html b/tiff/html/v3.9.0beta.html deleted file mode 100755 index d7d8821..0000000 --- a/tiff/html/v3.9.0beta.html +++ /dev/null @@ -1,304 +0,0 @@ - - - - Changes in TIFF v3.9.0beta - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). -If you don't find something listed here, then it was not done in this -timeframe, or it was not considered important enough to be mentioned. -The following information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • New tiffcrop utility contributed by Richard Nolde. - tiffcrop does the same as tiffcp, but also can crop, - extract, rotate and mirror images. - -
    • tif_jbig.c: Added support for JBIG compression scheme - (34661 code), contributed by Lee Howard. - -
    • Totally new implementation of OJPEG module from - Joris Van Damme. No need to patch libjpeg anymore. Many OJPEG files - should be supported now that was not supported previously. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • tif_config.wince.h, tiffconf.wince.h, tif_wince.c: WinCE-specific - compatibility stuff from Mateusz Loskot. - -
    • Rename config.h.vc and tif_config.h.vc to config.vc.h and - tif_config.vc.h for easier identification by folks using an IDE. - -
    • configure, configure.ac: OJPEG support enabled by default (i.e., - whe the conformant JPEG support enabled). - -
    • README.vms, Makefile.am, configure.com, libtiff/{Makefile.am, - tif_config.h-vms, tif_stream.cxx, tif_vms.c, tiffconf.h-vms}: - Added support for OpenVMS by Alexey Chupahin. - -
    • nmake.opt: use /EHsc for VS2005 compatibility. Also define - _CRT_SECURE_NO_DEPRECATE to avoid noise on VS2005. - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • tif_dirinfo.c (_TIFFFindFieldInfo): Don't attempt to - bsearch() on a NULL fieldinfo list. - (_TIFFFindFieldInfoByName): Don't attempt to lfind() on a NULL - fieldinfo list. - -
    • tif_jpeg.c: Changed JPEGInitializeLibJPEG() so that it - will convert from decompressor to compressor or compress to decompress - if required by the force arguments. This works around a problem in - where the JPEGFixupTestSubsampling() may cause a decompressor to - be setup on a directory when later a compressor is required with the - force flag set. Occurs with the addtiffo program for instance. - -
    • tif_dirwrite.c: Fixed swapping of byte arrays stored - in-place in tag offsets as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1363 - -
    • tif_getimage.c: workaround for 'Fractional scanline' error - reading OJPEG images with rowsperstrip that is not a multiple of - vertical subsampling factor. This bug is mentioned in - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1390 and - - http://www.asmail.be/msg0054766825.html - -
    • tif_dirread.c: Added special function to handle - SubjectDistance EXIF tag as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1362 - -
    • tif_dirread.c, tif_read.c: Type of the byte counters - changed from tsize_t to uint32 to be able to work with data arrays - larger than 2GB. Fixes bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=89 - Idea submitted by Matt Hancher. - -
    • tif_dir.c: Workaround for incorrect TIFFs with - ExtraSamples == 999 produced by Corel Draw. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1490 - -
    • tif_write.c: TIFFAppendToStrip() - clear sorted flag if - we move a strip. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1359 - -
    • tif_fax3.c: Save the state of printdir codec dependent method. - -
    • tif_jpeg.c: Save the state of printdir codec dependent method - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1273 - -
    • tif_win32.c: Fixed problem with offset value manipulation - as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1322 - -
    • tif_fax3.c, tif_next.c, tif_pixarlog.c: Fixed multiple - vulnerabilities, as per Gentoo bug (): - - http://bugs.gentoo.org/show_bug.cgi?id=142383 - -
    • tif_lzw.c, tif_zip.c: Fixed problems with mixing - encoding and decoding on the same read-write TIFF handle. The LZW - code can now maintain encode and decode state at the same time. The - ZIP code will switch back and forth as needed. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=757 - -
    • tif_msdos.c: Avoid handle leak for failed opens. - c/o Thierry Pierron - -
    • tif_dirwrite.c: take care not to flush out buffer of strip/tile - data in _TIFFWriteDirectory if TIFF_BEENWRITING not set. Relates - to bug report by Peng Gao with black strip at bottom of images. - -
    • tif_dirwrite.c: make sure to use uint32 for wordcount in - TIFFWriteNormanTag if writecount is VARIABLE2 for ASCII fields. - It already seems to have been done for other field types. Needed - for "tiffset" on files with geotiff ascii text. - -
    • tif_dirinfo.c: Added missed EXIF tag ColorSpace (40961). - -
    • tif_dirread.c: Move IFD fetching code in the separate - function TIFFFetchDirectory() avoiding code duplication in - TIFFReadDirectory() and TIFFReadCustomDirectory(). - -
    • tif_readdir.c: Added case in EstimateStripByteCounts() for tiled - files. Modified TIFFReadDirectory() to not invoke - EstimateStripByteCounts() for case where entry 0 and 1 are unequal but - one of them is zero. - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1204 - -
    • tif_open.c, tif_dirread.c, tiffiop.h: Move IFD looping - checking code in the separate function TIFFCheckDirOffset(). - -
    • tif_aux.c: Added _TIFFCheckRealloc() function. - -
    • tif_fax3.c: Fixed problems in fax decoder as per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=1194 - -
    • tif_jbig.c: Added support for JBIG compression scheme - (34661 code) contributed by Lee Howard. As per bug - - http://bugzilla.remotesensing.org/show_bug.cgi?id=896 - -
    • tif_getimage.c: Added support for planarconfig separate - non-subsampled YCbCr (i.e. separate YCbCr with subsampling [1,1]). - -
    • tif_getimage.c: Revision of all RGB(A) put routines: -
        -
      • Conversion of unassociated alpha to associated alpha - now done with more performant LUT, and calculation more - correct. -
      • Conversion of 16bit data to 8bit data now done with - more performant LUT, and calculation more correct -
      • Bugfix of handling of 16bit RGB with unassociated alpha -
      - -
    • tif_ojpeg.c: totally new implementation - -
    • tif_getimage.c: removed TIFFTAG_JPEGCOLORMODE handling - of OJPEG images in favor of tif_getimage.c native handling of - YCbCr and desubsampling. - -
    • tif_jpeg.c: JPEGVSetField() so that altering the photometric - interpretation causes the "upsampled" flag to be recomputed. Fixes - peculiar bug where photometric flag had to be set before jpegcolormode - flag. - -
    - -

    - - - -CHANGES IN THE TOOLS: - - - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • contrib/addtiffo/tif_overview.c: Fix problems with odd sized - output blocks in TIFF_DownSample_Subsampled() (bug 1542). - -
    • contrib/dbs/xtiff/xtiff.c: Make xtiff utility compilable. - Though it is still far from the state of being working and useful. - -
    - -Last updated $Date: 2009-08-20 22:57:39 $. - - - diff --git a/tiff/html/v3.9.1.html b/tiff/html/v3.9.1.html deleted file mode 100755 index c97d94f..0000000 --- a/tiff/html/v3.9.1.html +++ /dev/null @@ -1,115 +0,0 @@ - - - - Changes in TIFF v3.9.1 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      -
    • This is a bug-fix release for several bugs (two of which - are dire) which were discovered in the 3.9.0 release. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • Several defines were missing from tif_config.vc.h which - are necessary to compile the library using MSVC. - -
    • Colorized tests were actually not enabled as expected. - Parallel tests mode is now also enabled so that tests can be - run in parallel, and test output is sent to .log files. - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • libtiff/tif_write.c (TIFFAppendToStrip): Remove cast - which caused libtiff to output a wrong last strip with - byte-count and strip-offset of zero. This cast was added on - the day of the 3.9.0 release. - -
    • libtiff/tif_dirwrite.c: Back out changes from 2007-11-22 - that resulted in the final strip not being written in some - circumstances. - http://bugzilla.maptools.org/show_bug.cgi?id=2088 - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      -
    • None - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • None - -
    - -Last updated $Date: 2009-08-28 18:54:11 $. - - - diff --git a/tiff/html/v3.9.2.html b/tiff/html/v3.9.2.html deleted file mode 100755 index bb76794..0000000 --- a/tiff/html/v3.9.2.html +++ /dev/null @@ -1,122 +0,0 @@ - - - - Changes in TIFF v3.9.2 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • Fixes a number of bugs present in the 3.9.1 release. - -
    • OJPEG support updated to work with IJG JPEG 7 release. - -
    • Tiffcrop validated for most TIFF storage subformats and sample depths. - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • x86_64 now uses the same default fill order as i386. - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • Writing tags with an array value of type TIFF_DOUBLE now - returns correct error status. The TIFFTAG_SMINSAMPLEVALUE and - TIFFTAG_SMAXSAMPLEVALUE tags failed to write without this fix. - -
    • OJPEG decoder now works with IJG JPEG 7. Resolves "Bug - 2090 - OJPEG crash with libjpeg v7". - http://bugzilla.maptools.org/show_bug.cgi?id=2090 - -
    • Eliminate most GCC "dereferencing type-punned pointer" - warnings. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • New tiffcrop from Richard Nolde. Major updates to add - significant functionality for reading and writing tile based - images with bit depths not a multiple of 8 which cannot be - handled by tiffcp. - -
    • Allow building tools with GCC using the "-Wformat - -Werror=format-security" flags. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • None - -
    - -Last updated $Date: 2009-11-04 17:38:13 $. - - - diff --git a/tiff/html/v4.0.0.html b/tiff/html/v4.0.0.html deleted file mode 100755 index 9694a1e..0000000 --- a/tiff/html/v4.0.0.html +++ /dev/null @@ -1,269 +0,0 @@ - - - - Changes in TIFF v4.0.0 - - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. Please consult -the ChangeLog file in the source package for full change details. The -following information is located here: -

    -

    -

    - - - -

    MAJOR CHANGES:

    - -BigTIFF support changes: - -
      - -
    • The options parameter in the TIFFOpen and TIFFClientOpen funcs has - been extended. When creating new files, you can add option '4' to - specify you want to create a ClassicTIFF file, though that is the - default and the option is not strictly necessary. (As such, old - calling code will continue to function and create ClassicTIFF files.) - Or you can add option '8' to specify you want to create a BigTIFF file - instead. This new option is also reflected in some of the tools we - already upgraded. For instance, you can use the -8 option on tiffcp to - have tiffcp produce BigTIFF files instead of the default ClassicTIFF. - (Whilst on additional option is provided for version selection when - creating new files, no such option is necessary when reading TIFF - files. LibTiff reads ClassicTIFF and BigTIFF both, and the application - does not need to be aware which TIFF version an opened file is.) - -
    • Although the tag count in BigTIFF is 64bit, we restricted the - count in the implementation to a much more reasonable size. This is - necessary in current implementation, because all tag data gets read - automatically in the IFD reading stage, so if there's half a dozen - private tags with multiple gigabytes of data that causes considerable - overhead even if the application level is never interested in these - tags. Our choice to ignore tags with data longer then a certain sanity - value is much needed as things stand. We also recommend to step away - from writing tiles that are 8 kilobyte in their uncompressed form, or - writing single-line strips, in really big files, resulting in mega's - of tiles or strips. It's much more efficient to choose bigger tile or - strip sizes, up to several megabyte if needed, and have a few kilo of - tiles or strips instead. - -
    • Although it's rare, some application code does directly access - file offsets. Some of these are automatically upgraded because they - used the toff_t type, others need to be aware that the datatype - changed and need to start using toff_t or uint64. This impacts access - to tags like the EXIF IFD tag, for example, or the SubIfds tag, or to - StripOffsets or TileOffsets, the return type of functions like - TIFFCurrentDirOffset, and a parameter type to functions like - TIFFSetSubDirectory. - -
    • Although it's rare, some application code does use structures - like TIFFHeader or TIFFDirEntry that used to be an exact binary - representation of TIFF structures. These need to change. The old - TIFFHeader structure is replaced by the new TIFFHeaderClassic, - TIFFHeaderBig, and TIFFHeaderCommon structures that are an exact - binary representation of the ClassicTIFF and BigTIFF header, and of - the part that is common to both. There is no new equivalent for the - old TIFFDirEntry structure (or more precisely, there is still a - TIFFDirEntry structure, but it is changed, moved to library-private - definition, and no longer an exact binary representation of the tag - structure of either TIFF version). - -
    • Sizer functions, like TIFFTileSize or TIFFScanlineSize and the - like, return a tmsize_t value (tmsize_t is defined as int32 on 32bit - machines, and int64 on 64bit machines, and as such it is meant to - represent signed memory sizes). This is because we figure 98% of the - calling code uses the return value as sizes in allocations and the - like. So, any overflow that is theoretically possible with BigTIFF - when LibTiff is running on a 32bit system, is best detected inside the - sizer functions and it is best to return a type that makes sense as a - memory size. If your calling code is the exception and is interested - in actual file size, you best use the newer TIFFTileSize64 or - TIFFScanlineSize64 function that returns an uint64 type. - -
    • These TIFF tags require a 64-bit type as an argument in - libtiff 4.0.0: -
        -
      • TIFFTAG_FREEBYTECOUNTS -
      • TIFFTAG_FREEOFFSETS -
      • TIFFTAG_STRIPBYTECOUNTS -
      • TIFFTAG_STRIPOFFSETS -
      • TIFFTAG_TILEBYTECOUNTS -
      • TIFFTAG_TILEOFFSETS -
      - -
    - -Other important backward incompatible changes in the public API: - -
      -
    • TIFFRewriteField() renamed into _TIFFRewriteField() and moved out - from the public interface (from tiffio.h to tiffiop.h). Type of its - 'count' parameter changed from uint32 to tmsize_t. - -
    • TIFFMergeFieldInfo() returns non-void result now. It returns 0 - if successful and -1 if failed. Though this is now obsoleted function - and should not be used in new programs. Use the new tag extension - scheme instead. - -
    • TIFFFieldWithTag() and TIFFFieldWithName() functions now return - pointer to TIFFField constant object instead of TIFFFieldInfo. - -
    • TIFFReassignTagToIgnore() function and TIFFIgnoreSense enumeration - have been removed. They was unused and never been used properly. - Should be unneeded for high-level applications. - -
    • TIFFTagValue structure removed from the public tiffio.h - to private tif_dir.h and not accessible anymore. It should be unneeded - for high-level applications. - -
    - -

    - - -

    CHANGES IN THE SOFTWARE CONFIGURATION:

    - -
      - -
    • Updated autotools: Autoconf 2.68, Automake 1.11.1, libtool - 2.4. - -
    • Enabled support for Automake silent build rules - (--enable-silent-rules or 'make V=0') - -
    • Enabled support for Automake colorized and parallel tests. - -
    • Added detection of 64-bit integer types since libtiff 4.0 - requires use of 64-bit signed and unsigned integer types. - -
    • Libtiff now provides a more comprehensive test suite with - over 72 tests, which may be executed on Unix-like systems, or - under Microsoft Windows using MinGW/MSYS or Cygwin. - -
    • --disable-lzma configure option to disable use of liblzma. - -
    • --enable-defer-strile-load configure option to enable - experimental deferred strip/tile offset/size loading. May - cause some extremely sophisticated uses of libtiff to fail. - -
    • --enable-chunky-strip-read configure option to enable - experimental enable reading large strips in chunks in - TIFFReadScanline(). - -
    • Now always uses WIN32 native I/O functions for Microsoft - Windows except for under Cygwin. - -
    • Now provides a pkg-config support file (libtiff-4.pc). - -
    - -

    - - - -

    CHANGES IN LIBTIFF:

    - -
      - -
    • Patches/fixes made to stable libtiff (v3.9.X) are also - applied to 4.0.0. There are too many to list here. See the - distribution ChangeLog for a detailed change list. - -
    • There is considerable change in some files like - tif_dirread and tif_dirwrite. These changes don't impact - backwards compatibility, they are mostly a clean rewrite that - does allow BigTIFF support as well as somewhat more robust - reading of the unexpected already and will also serve future - API extension but does not impact current API or functionality - in a negative way that you need to know about. - -
    • Although there is still a functional definition for types - like toff_t (file offset), tstrip_t (strip index number), etc, - we recommend against using these in newer code. We have - learned that it is next to impossible to use these - consistently and make real abstraction of the binary format of - these types. Instead, at a certain level we always end up - doing casts anyway, and taking the exact binary format into - account, so these types are nothing but dangerously misleading - and obfuscating. You do not need to update calling code that - uses them, as 99.9% of such code will continue to work. But we - recommend against using them in newer calling code, and we - started replacing them with binary clear types like uint16, - uint32 and such in the library. - -
    • We do use and will continue to use one functional type - that is an exception to the above rule, being tmsize_t. This - is a signed memory size type, i.e. it is int32 on 32bit - machines, or int64 on 64bit machines. - -
    • Optionally support LZMA compression via TIFF tag 34925. - Tiffcp supports compression levels similar to "-c lzma:p1" or - "-c zip:p9 for setting the LZMA compression parameters. - -
    • Optionally defer the load of strip/tile offset and size - tags for optimized scanning of directories. Enabled with the - --enable-defer-strile-load configure option (DEFER_STRILE_LOAD - #define in tif_config.h). - -
    • Optionally enable experimental support for reading big - strips in chunks. Enabled with the --enable-chunky-strip-read - configure option. - -
    - -

    - - - -

    CHANGES IN THE TOOLS:

    - -
      - -
    • tiffset: add -d and -sd switches to allow operation on - a particular directory, not just the first. - -
    - -

    - - - -

    CHANGES IN THE CONTRIB AREA:

    - -
      -
    - -Last updated $Date: 2011-04-09 21:01:00 $. - - - diff --git a/tiff/html/v4.0.1.html b/tiff/html/v4.0.1.html deleted file mode 100755 index 1f113c1..0000000 --- a/tiff/html/v4.0.1.html +++ /dev/null @@ -1,113 +0,0 @@ - - - - Changes in TIFF v4.0.1 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • None - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • --enable-ld-version-script: New configure option to - enable shared library symbol versioning on ELF-based systems - (e.g. Linux and FreeBSD) which use the GNU linker. This - allows multiple major versions of libtiff to be loaded - simultaneously into the same application or library without - conflict, as long as all libtiffs involved are built with - versioned symbols. This option is not enabled by default. - -
    • Added libtiff private dependency on -llzma for pkg-config. - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      -
    • libtiff/tif_dir.c, libtiff/tif_dirread.c: Extra caution around - assumption tag fetching is always successful. - -
    • libtiff/tif_jpeg.c: Extra caution for case where sp is NULL. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • None - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • None - -
    - -Last updated $Date: 2012-02-18 21:53:27 $. - - - diff --git a/tiff/html/v4.0.2.html b/tiff/html/v4.0.2.html deleted file mode 100755 index 2c44e34..0000000 --- a/tiff/html/v4.0.2.html +++ /dev/null @@ -1,118 +0,0 @@ - - - - Changes in TIFF v4.0.2 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • None - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • None - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • tif_getimage.c: added support for _SEPARATED CMYK images. - -
    • tif_getimage.c: Added support for greyscale + alpha. - -
    • Added TIFFCreateCustomDirectory() and TIFFCreateEXIFDirectory() functions. -
    • tif_print.c: Lots of fixes around printing corrupt or - hostile input. - -
    • Improve handling of corrupt ycbcrsubsampling values. - -
    • tif_unix.c: use strerror to get meaningful error messages. - -
    • tif_jpeg.c: fix serious bugs in JPEGDecodeRaw(). - -
    • tif_jpeg.c: Fix size overflow (zdi-can-1221,CVE-2012-1173). - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • tiff2pdf: Defend against integer overflows while - calculating required buffer sizes (CVE-2012-2113). - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • None - -
    - -Last updated $Date: 2012-09-22 16:12:44 $. - - - diff --git a/tiff/html/v4.0.3.html b/tiff/html/v4.0.3.html deleted file mode 100755 index c640c86..0000000 --- a/tiff/html/v4.0.3.html +++ /dev/null @@ -1,125 +0,0 @@ - - - - Changes in TIFF v4.0.3 - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • None - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • Updated to use Automake 1.12.4. Avoids security problem with - 'make distcheck' (CVE-2012-3386). - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • Various memory buffer access fixes. - -
    • Fix handling when writing RGBA jpeg compressed imagery - (http://trac.osgeo.org/gdal/ticket/4732). - -
    • Fix to work properly with IJG JPEG 7+. - -
    • New functions TIFFFieldTag(), TIFFFieldName(), - TIFFFieldDataType(), TIFFFieldPassCount(), TIFFFieldReadCount(), - TIFFFieldWriteCount() to use as external accessors for the opaque - type TIFFField. - -
    • Fix bug rewriting image tiles in a compressed - file (http://trac.osgeo.org/gdal/ticket/4771). - -
    • Add TIFF/FX tag support in libtiff. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • tiff2pdf: Fail when TIFFSetDirectory() fails. This prevents - core dumps or perhaps even arbitrary code execution when processing - a corrupt input file (CVE-2012-3401). - -
    • tiff2pdf: Fix two places where t2p_error didn't get set after a - malloc failure. No crash risk AFAICS, but the program might not - report exit code 1 as desired. - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • None - -
    - -Last updated $Date: 2012-09-22 16:12:44 $. - - - diff --git a/tiff/html/v4.0.4beta.html b/tiff/html/v4.0.4beta.html deleted file mode 100755 index 2c2dfd2..0000000 --- a/tiff/html/v4.0.4beta.html +++ /dev/null @@ -1,291 +0,0 @@ - - - - Changes in TIFF v4.0.4beta - - - - - - - -TIFF CHANGE INFORMATION - - - - -

    -This document describes the changes made to the software between the -previous and current versions (see above). If you don't -find something listed here, then it was not done in this timeframe, or -it was not considered important enough to be mentioned. The following -information is located here: -

    -

    -

    - - - -MAJOR CHANGES: - -
      - -
    • None - -
    - - -

    - - -CHANGES IN THE SOFTWARE CONFIGURATION: - -
      - -
    • Updated to use Automake 1.15 and Libtool 2.4.5 - -
    - -

    - - - -CHANGES IN LIBTIFF: - -
      - -
    • TIFFCheckDirOffset(): avoid uint16 overflow - when reading more than 65535 directories, and effectively error out when - eaching that limit. - -
    • TIFFNumberOfDirectories(): generate error in case of directory count - overflow. - -
    • TIFFAdvanceDirectory(): If nextdir is found to - be defective, then set it to zero before returning error in order - to terminate processing of truncated TIFF. - -
    • JPEG-in-TIFF: recognize SOF2, SOF9 and SOF10 - markers to avoid emitting a warning. Fix for compatibility with mozjpeg library. - Note: the default settings of mozjpeg will produce progressive scans, which - is forbidden by the TechNote. - -
    • JPEG-in-TIFF: Fix regression introduced in 3.9.3/4.0.0 that caused - all tiles/strips to include quantization tables even when the jpegtablesmode - had the JPEGTABLESMODE_QUANT bit set. - Also add explicit removal of Huffman tables when jpegtablesmode has the - JPEGTABLESMODE_HUFF bit set, which avoids Huffman tables to be emitted in the - first tile/strip (only useful in update scenarios. create-only was - fine) - -
    • JPEG-in-TIFF: fix segfault in JPEGFixupTagsSubsampling() on - corrupted image where tif->tif_dir.td_stripoffset == NULL. - (#2471) - -
    • NeXT codec: add new tests to check that we don't read outside of - the compressed input stream buffer. - -
    • NeXT codec: check that BitsPerSample = 2. Fixes - #2487 (CVE-2014-8129) - -
    • NeXT codec: in the "run mode", use tilewidth for tiled images - instead of imagewidth to avoid crash - -
    • tif_getimage.c: in OJPEG case, fix checks on strile width/height - in the putcontig8bitYCbCr42tile, putcontig8bitYCbCr41tile and - putcontig8bitYCbCr21tile cases. - -
    • in TIFFDefaultDirectory(), reset any already existing - extented tags installed by user code through the extender mechaninm before - calling the extender callback (GDAL #5054) - -
    • Fix warnings about unused parameters. - -
    • Fix various typos in comments found by Debian lintian tool (GDAL #5756) - -
    • tif_getimage.c: avoid divide by zero on invalid YCbCr subsampling. - (#2235) - -
    • tif_dirread.c: In EstimateStripByteCounts(), check return code - of _TIFFFillStriles(). This solves crashing bug on corrupted - images generated by afl. - -
    • tif_read.c: fix several invalid comparisons of a uint64 value with - <= 0 by casting it to int64 first. This solves crashing bug on corrupted - images generated by afl. - -
    • TIFFSetField(): refuse to set negative values for - TIFFTAG_XRESOLUTION and TIFFTAG_YRESOLUTION that cause asserts when writing - the directory - -
    • TIFFReadDirectory(): refuse to read ColorMap or - TransferFunction if BitsPerSample has not yet been read, otherwise reading - it later will cause user code to crash if BitsPerSample > 1 - -
    • TIFFRGBAImageOK(): return FALSE if LOGLUV with - SamplesPerPixel != 3, or if CIELAB with SamplesPerPixel != 3 or BitsPerSample != 8 - -
    • tif_config.vc.h: no longer use "#define snprintf _snprintf" with - Visual Studio 2015 aka VC 14 aka MSVC 1900 - -
    • LZW codec: prevent potential null dereference of sp->dec_codetab in LZWPreDecode - (#2459) - -
    • TIFFReadBufferSetup(): avoid passing -1 size - to TIFFmalloc() if passed user buffer size is 0 - (#2459) - -
    • TIFFReadDirEntryOutputErr(): Incorrect - count for tag should be a warning rather than an error since - errors terminate processing. - -
    • tif_dirinfo.c (TIFFField) : Fix data type for TIFFTAG_GLOBALPARAMETERSIFD tag. - -
    • Add definitions for TIFF/EP CFARepeatPatternDim and CFAPattern tags - (#2457) - -
    • tif_codec.c, tif_dirinfo.c: Enlarge some fixed-size buffers that weren't - large enough, and eliminate substantially all uses of sprintf(buf, - ...) in favor of using snprintf(buf, sizeof(buf), ...) -
    • configure.ac: Improve pkg-config static linking by adding -lm to Libs.private when needed. - -
    • tif_write.c: tmsize_t related casting warning fixed for - 64bit linux. - -
    • tif_read.c: uint64/tmsize_t change for MSVC warnings. - (#2427) - -
    • Fix TIFFPrintDirectory's handling of - field_passcount fields: it had the TIFF_VARIABLE and - TIFF_VARIABLE2 cases backwards. - -
    • PixarLog codec: Improve previous patch for CVE-2012-4447 - (to enlarge tbuf for possible partial stride at end) so that - overflow in the integer addition is detected. - -
    • tif_{unix,vms,win32}.c (_TIFFmalloc): ANSI C does not - require malloc() to return NULL pointer if requested allocation - size is zero. Assure that _TIFFmalloc does. - -
    • tif_zip.c: Avoid crash on NULL error messages. - -
    - -

    - - - -CHANGES IN THE TOOLS: - -
      - -
    • tiff2pdf: Fis various crashes and memory buffer access errors (oCERT-2014-013). -
    • tiff2pdf: fix buffer overflow on some YCbCr JPEG compressed images. - (#2445) -
    • tiff2pdf: fix buffer overflow on YCbCr JPEG compressed image. - (#2443) -
    • tiff2pdf: check return code of TIFFGetField() when reading TIFFTAG_SAMPLESPERPIXEL -
    • tiff2pdf: fix crash due to invalid tile count. -
    • tiff2pdf: Detect invalid settings of BitsPerSample/SamplesPerPixel for CIELAB / ITULAB -
    • tiff2pdf: Assure that memory size calculations for - _TIFFmalloc() do not overflow the range of tmsize_t. -
    • tiff2pdf: Avoid crash when TIFFTAG_TRANSFERFUNCTION tag returns one channel, - with the other two channels set to NULL. -
    • tiff2pdf: close PDF file. (#2479) -
    • tiff2pdf: Preserve input file directory order when pages - are tagged with the same page number. -
    • tiff2pdf.c: terminate after failure of allocating ycbcr buffer - (#2449 CVE-2013-4232) -
    • tiff2pdf: Rewrite JPEG marker parsing in - t2p_process_jpeg_strip to be at least marginally competent. The - approach is still fundamentally flawed, but at least now it won't - stomp all over memory when given bogus input. Fixes CVE-2013-1960. -
    • tiffdump: Guard against arithmetic overflow when calculating allocation buffer sizes. -
    • tiffdump: fix crash due to overflow of entry count. -
    • tiffdump: Fix double-free bug. -
    • tiffdump: detect cycle in TIFF directory chaining. - (#2463) -
    • tiffdump: avoid passing a NULL pointer to read() if seek() failed before. - (#2459) -
    • tiff2bw: when Photometric=RGB, the utility only works if SamplesPerPixel = 3. Enforce that. - (#2485, CVE-2014-8127) -
    • pal2rgb, thumbnail: fix crash by disabling TIFFTAG_INKNAMES copying. - (#2484, CVE-2014-8127) -
    • thumbnail: fix out-of-buffer write. - (#2489, CVE-2014-8128) -
    • thumbnail, tiffcmp: only read/write TIFFTAG_GROUP3OPTIONS - or TIFFTAG_GROUP4OPTIONS if compression is COMPRESSION_CCITTFAX3 or - COMPRESSION_CCITTFAX4. - (#2493, CVE-2014-8128) -
    • tiffcp: fix crash when converting YCbCr JPEG-compressed to none. - (#2480) -
    • bmp2tiff: fix crash due to int overflow related to input BMP dimensions -
    • tiffcrop: fix crash due to invalid TileWidth/TileHeight -
    • tiffcrop: fix segfault if bad value passed to -Z option - ( #2459) - and add missing va_end in dump_info -
    • thumbnail, tiffcrop: "fix" heap read over-run found with - Valgrind and Address Sanitizer on test suite -
    • fax2ps: check malloc()/realloc() result. (#2470) -
    • gif2tiff: apply patch for CVE-2013-4243. (#2451) -
    • gif2tiff: fix possible OOB write. (#2452, CVE-2013-4244) -
    • gif2tiff: Be more careful about corrupt or hostile input files (#2450, CVE-2013-4231) -
    • tiff2rgba: fix usage message in that zip was wrongly described -
    • tiffinfo: Default various values fetched with TIFFGetField() to avoid being uninitialized. -
    • tiff2ps: Fix bug in auto rotate option code. -
    • ppm2tiff: avoid zero size buffer vulnerability (CVE-2012-4564). - check the linebytes calculation too, get the max() calculation - straight, avoid redundant error messages, check for malloc - failure. -
    • tiffset: now supports a -u option to unset a tag. - (#2419) -
    • Fix warnings about unused parameters. -
    • rgb2ycbcr, tiff2bw, tiff2pdf, tiff2ps, tiffcrop, tiffdither : - Enlarge some fixed-size buffers that weren't - large enough, and eliminate substantially all uses of sprintf(buf, - ...) in favor of using snprintf(buf, sizeof(buf), ...), so as to - protect against overflow of fixed-size buffers. This responds in - particular to CVE-2013-1961 concerning overflow in tiff2pdf.c's - t2p_write_pdf_page(). -
    • html/man/tiff2ps.1.html, html/man/tiffcp.1.html, - html/man/tiffdither.1.html, man/tiff2ps.1, man/tiffcp.1, - man/tiffdither.1, tools/tiff2ps.c, tools/tiffcp.c, - tools/tiffdither.c: Sync tool usage printouts and man pages with - reality - -
    - -

    - - - -CHANGES IN THE CONTRIB AREA: - -
      - -
    • Fix warnings about variables set but not used. -
    • contrib/dbs/xtiff/xtiff.c: Enlarge some fixed-size buffers that weren't - large enough, and eliminate substantially all uses of sprintf(buf, - ...) in favor of using snprintf(buf, sizeof(buf), ...), so as to - protect against overflow of fixed-size buffers. -
    - -Last updated $Date: 2015-26-01 11:18:00 $. - - - diff --git a/tiff/libtiff-4.pc.in b/tiff/libtiff-4.pc.in deleted file mode 100755 index abe75a6..0000000 --- a/tiff/libtiff-4.pc.in +++ /dev/null @@ -1,11 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -includedir=@includedir@ - -Name: libtiff -Description: Tag Image File Format (TIFF) library. -Version: @VERSION@ -Libs: -L${libdir} -ltiff -Libs.private: @tiff_libs_private@ -Cflags: -I${includedir} diff --git a/tiff/libtiff/Makefile.am b/tiff/libtiff/Makefile.am deleted file mode 100755 index 82fa31d..0000000 --- a/tiff/libtiff/Makefile.am +++ /dev/null @@ -1,150 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -LIBPORT = $(top_builddir)/port/libport.la -LIBTIFF = $(top_builddir)/libtiff/libtiff.la -libtiffincludedir = $(includedir) - -EXTRA_DIST = Makefile.vc \ - SConstruct \ - tif_config.h-vms \ - tif_config.vc.h \ - tif_config.wince.h \ - tiffconf.vc.h \ - tiffconf.wince.h \ - libtiff.def \ - libtiff.map \ - libtiffxx.map - -libtiffinclude_HEADERS = \ - tiff.h \ - tiffio.h \ - tiffvers.h - -if HAVE_CXX -libtiffinclude_HEADERS += tiffio.hxx -endif - -noinst_HEADERS = \ - t4.h \ - tif_dir.h \ - tif_predict.h \ - tiffiop.h \ - uvcode.h - -nodist_libtiffinclude_HEADERS = \ - tiffconf.h - -libtiff_la_SOURCES = \ - tif_aux.c \ - tif_close.c \ - tif_codec.c \ - tif_color.c \ - tif_compress.c \ - tif_dir.c \ - tif_dirinfo.c \ - tif_dirread.c \ - tif_dirwrite.c \ - tif_dumpmode.c \ - tif_error.c \ - tif_extension.c \ - tif_fax3.c \ - tif_fax3sm.c \ - tif_flush.c \ - tif_getimage.c \ - tif_jbig.c \ - tif_jpeg.c \ - tif_jpeg_12.c \ - tif_luv.c \ - tif_lzma.c \ - tif_lzw.c \ - tif_next.c \ - tif_ojpeg.c \ - tif_open.c \ - tif_packbits.c \ - tif_pixarlog.c \ - tif_predict.c \ - tif_print.c \ - tif_read.c \ - tif_strip.c \ - tif_swab.c \ - tif_thunder.c \ - tif_tile.c \ - tif_version.c \ - tif_warning.c \ - tif_write.c \ - tif_zip.c - -libtiffxx_la_SOURCES = \ - tif_stream.cxx - -if WIN32_IO -EXTRA_DIST += tif_unix.c -libtiff_la_SOURCES += tif_win32.c -else -EXTRA_DIST += tif_win32.c -libtiff_la_SOURCES += tif_unix.c -endif - -lib_LTLIBRARIES = libtiff.la -if HAVE_CXX -lib_LTLIBRARIES += libtiffxx.la -endif - -libtiff_la_LDFLAGS = \ - -no-undefined \ - -version-info $(LIBTIFF_VERSION_INFO) -if HAVE_RPATH -libtiff_la_LDFLAGS += $(LIBDIR) -endif -if HAVE_LD_VERSION_SCRIPT -libtiff_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libtiff.map -endif -libtiff_la_LIBADD = $(LIBPORT) - -libtiffxx_la_LDFLAGS = \ - -no-undefined \ - -version-info $(LIBTIFF_VERSION_INFO) -if HAVE_RPATH -libtiffxx_la_LDFLAGS += $(LIBDIR) -endif -if HAVE_LD_VERSION_SCRIPT -libtiffxx_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libtiffxx.map -endif -libtiffxx_la_LIBADD = $(LIBTIFF) $(LIBPORT) -libtiffxx_la_DEPENDENCIES = libtiff.la - -# -# The finite state machine tables used by the G3/G4 decoders -# are generated by the mkg3states program. 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distclean-tags distdir dvi dvi-am html html-am info info-am \ - install install-am install-data install-data-am install-dvi \ - install-dvi-am install-exec install-exec-am install-html \ - install-html-am install-info install-info-am \ - install-libLTLIBRARIES install-libtiffincludeHEADERS \ - install-man install-nodist_libtiffincludeHEADERS install-pdf \ - install-pdf-am install-ps install-ps-am install-strip \ - installcheck installcheck-am installdirs maintainer-clean \ - maintainer-clean-generic mostlyclean mostlyclean-compile \ - mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ - tags tags-am uninstall uninstall-am uninstall-libLTLIBRARIES \ - uninstall-libtiffincludeHEADERS \ - uninstall-nodist_libtiffincludeHEADERS - -.PRECIOUS: Makefile - - -faxtable: mkg3states - (rm -f tif_fax3sm.c && ./mkg3states -b -c const tif_fax3sm.c) - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/tiff/libtiff/Makefile.vc b/tiff/libtiff/Makefile.vc deleted file mode 100755 index 42792ba..0000000 --- a/tiff/libtiff/Makefile.vc +++ /dev/null @@ -1,102 +0,0 @@ -# $Id: Makefile.vc,v 1.22 2009-06-23 18:25:43 fwarmerdam Exp $ -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. -# -# Makefile for MS Visual C and Watcom C compilers. -# -# To build: -# C:\libtiff\libtiff> nmake /f makefile.vc all -# - -!INCLUDE ..\nmake.opt - -INCL = -I. $(JPEG_INCLUDE) $(ZLIB_INCLUDE) $(JBIG_INCLUDE) - -!IFDEF USE_WIN_CRT_LIB -OBJ_SYSDEP_MODULE = tif_unix.obj -!ELSE -OBJ_SYSDEP_MODULE = tif_win32.obj -!ENDIF - -OBJ = \ - tif_aux.obj \ - tif_close.obj \ - tif_codec.obj \ - tif_color.obj \ - tif_compress.obj \ - tif_dir.obj \ - tif_dirinfo.obj \ - tif_dirread.obj \ - tif_dirwrite.obj \ - tif_dumpmode.obj \ - tif_error.obj \ - tif_extension.obj \ - tif_fax3.obj \ - tif_fax3sm.obj \ - tif_getimage.obj \ - tif_jbig.obj \ - tif_jpeg.obj \ - tif_jpeg_12.obj \ - tif_ojpeg.obj \ - tif_flush.obj \ - tif_luv.obj \ - tif_lzw.obj \ - tif_next.obj \ - tif_open.obj \ - tif_packbits.obj \ - tif_pixarlog.obj \ - tif_predict.obj \ - tif_print.obj \ - tif_read.obj \ - tif_stream.obj \ - tif_swab.obj \ - tif_strip.obj \ - tif_thunder.obj \ - tif_tile.obj \ - tif_version.obj \ - tif_warning.obj \ - tif_write.obj \ - tif_zip.obj \ - $(OBJ_SYSDEP_MODULE) - -all: libtiff.lib $(DLLNAME) - -tif_config.h: tif_config.vc.h - copy tif_config.vc.h tif_config.h - -tiffconf.h: tiffconf.vc.h - copy tiffconf.vc.h tiffconf.h - -libtiff.lib: tif_config.h tiffconf.h $(OBJ) - $(AR) /out:libtiff.lib $(OBJ) $(LIBS) - -$(DLLNAME): tif_config.h tiffconf.h libtiff.def $(OBJ) - $(LD) /debug /dll /def:libtiff.def /out:$(DLLNAME) \ - /implib:libtiff_i.lib $(OBJ) $(LIBS) - -clean: - -del tif_config.h tiffconf.h - -del *.obj - -del *.lib - -del *.dll - -del *.dll.manifest - -del *.pdb diff --git a/tiff/libtiff/SConstruct b/tiff/libtiff/SConstruct deleted file mode 100755 index dc00c8c..0000000 --- a/tiff/libtiff/SConstruct +++ /dev/null @@ -1,73 +0,0 @@ -# $Id: SConstruct,v 1.4 2007-02-24 15:03:50 dron Exp $ - -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2005, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# This file contains rules to build software with the SCons tool -# (see the http://www.scons.org/ for details on SCons). - -# Import globally defined options -Import([ 'env', 'idir_lib' ]) - -SRCS = [ \ - 'tif_aux.c', \ - 'tif_close.c', \ - 'tif_codec.c', \ - 'tif_color.c', \ - 'tif_compress.c', \ - 'tif_dir.c', \ - 'tif_dirinfo.c', \ - 'tif_dirread.c', \ - 'tif_dirwrite.c', \ - 'tif_dumpmode.c', \ - 'tif_error.c', \ - 'tif_extension.c', \ - 'tif_fax3.c', \ - 'tif_fax3sm.c', \ - 'tif_flush.c', \ - 'tif_getimage.c', \ - 'tif_jbig.c', \ - 'tif_jpeg.c', \ - 'tif_luv.c', \ - 'tif_lzw.c', \ - 'tif_next.c', \ - 'tif_ojpeg.c', \ - 'tif_open.c', \ - 'tif_packbits.c', \ - 'tif_pixarlog.c', \ - 'tif_predict.c', \ - 'tif_print.c', \ - 'tif_read.c', \ - 'tif_strip.c', \ - 'tif_swab.c', \ - 'tif_thunder.c', \ - 'tif_tile.c', \ - 'tif_unix.c', \ - 'tif_version.c', \ - 'tif_warning.c', \ - 'tif_write.c', \ - 'tif_zip.c' ] - -StaticLibrary('tiff', SRCS) -SharedLibrary('tiff', SRCS) - diff --git a/tiff/libtiff/libtiff.def b/tiff/libtiff/libtiff.def deleted file mode 100755 index 892ad23..0000000 --- a/tiff/libtiff/libtiff.def +++ /dev/null @@ -1,158 +0,0 @@ -EXPORTS TIFFOpen - TIFFOpenW - TIFFGetVersion - TIFFCleanup - TIFFClose - TIFFFlush - TIFFFlushData - TIFFGetField - TIFFVGetField - TIFFGetFieldDefaulted - TIFFVGetFieldDefaulted - TIFFGetTagListEntry - TIFFGetTagListCount - TIFFReadDirectory - TIFFScanlineSize64 - TIFFScanlineSize - TIFFStripSize64 - TIFFStripSize - TIFFVStripSize64 - TIFFVStripSize - TIFFRawStripSize64 - TIFFRawStripSize - TIFFTileRowSize64 - TIFFTileRowSize - TIFFTileSize64 - TIFFTileSize - TIFFVTileSize64 - TIFFVTileSize - TIFFFileno - TIFFSetFileno - TIFFGetMode - TIFFIsTiled - TIFFIsByteSwapped - TIFFIsBigEndian - TIFFIsMSB2LSB - TIFFIsUpSampled - TIFFCIELabToRGBInit - TIFFCIELabToXYZ - TIFFXYZToRGB - TIFFYCbCrToRGBInit - TIFFYCbCrtoRGB - TIFFCurrentRow - TIFFCurrentDirectory - TIFFCurrentStrip - TIFFCurrentTile - TIFFDataWidth - TIFFReadBufferSetup - TIFFWriteBufferSetup - TIFFSetupStrips - TIFFLastDirectory - TIFFSetDirectory - TIFFSetSubDirectory - TIFFUnlinkDirectory - TIFFSetField - TIFFVSetField - TIFFCheckpointDirectory - TIFFWriteDirectory - TIFFRewriteDirectory - TIFFPrintDirectory - TIFFReadScanline - TIFFWriteScanline - TIFFReadRGBAImage - TIFFReadRGBAImageOriented - TIFFFdOpen - TIFFClientOpen - TIFFFileName - TIFFError - TIFFErrorExt - TIFFWarning - TIFFWarningExt - TIFFSetErrorHandler - TIFFSetErrorHandlerExt - TIFFSetWarningHandler - TIFFSetWarningHandlerExt - TIFFComputeTile - TIFFCheckTile - TIFFNumberOfTiles - TIFFReadTile - TIFFWriteTile - TIFFComputeStrip - TIFFNumberOfStrips - TIFFRGBAImageBegin - TIFFRGBAImageGet - TIFFRGBAImageEnd - TIFFReadEncodedStrip - TIFFReadRawStrip - TIFFReadEncodedTile - TIFFReadRawTile - TIFFReadRGBATile - TIFFReadRGBAStrip - TIFFWriteEncodedStrip - TIFFWriteRawStrip - TIFFWriteEncodedTile - TIFFWriteRawTile - TIFFSetWriteOffset - TIFFSwabFloat - TIFFSwabDouble - TIFFSwabShort - TIFFSwabLong - TIFFSwabArrayOfShort - TIFFSwabArrayOfLong - TIFFSwabArrayOfFloat - TIFFSwabArrayOfDouble - TIFFSwabArrayOfTriples - TIFFReverseBits - TIFFGetBitRevTable - TIFFDefaultStripSize - TIFFDefaultTileSize - TIFFRasterScanlineSize64 - TIFFRasterScanlineSize - _TIFFmalloc - _TIFFrealloc - _TIFFfree - _TIFFmemset - _TIFFmemcpy - _TIFFmemcmp - _TIFFCheckMalloc - TIFFCreateDirectory - TIFFSetTagExtender - TIFFFieldWithName - TIFFFieldWithTag - TIFFFieldTag - TIFFFieldName - TIFFFieldDataType - TIFFFieldPassCount - TIFFFieldReadCount - TIFFFieldWriteCount - TIFFCurrentDirOffset - TIFFWriteCheck - TIFFRGBAImageOK - TIFFNumberOfDirectories - TIFFSetFileName - TIFFSetClientdata - TIFFSetMode - TIFFClientdata - TIFFGetReadProc - TIFFGetWriteProc - TIFFGetSeekProc - TIFFGetCloseProc - TIFFGetSizeProc - TIFFGetMapFileProc - TIFFGetUnmapFileProc - TIFFIsCODECConfigured - TIFFGetConfiguredCODECs - TIFFFindCODEC - TIFFRegisterCODEC - TIFFUnRegisterCODEC - TIFFFreeDirectory - TIFFReadCustomDirectory - TIFFReadEXIFDirectory - TIFFAccessTagMethods - TIFFGetClientInfo - TIFFSetClientInfo - TIFFSwabLong8 - TIFFSwabArrayOfLong8 - TIFFFindField - TIFFUnsetField - TIFFMergeFieldInfo diff --git a/tiff/libtiff/libtiff.map b/tiff/libtiff/libtiff.map deleted file mode 100755 index 2fc177f..0000000 --- a/tiff/libtiff/libtiff.map +++ /dev/null @@ -1,4 +0,0 @@ -LIBTIFF_4.0 { - global: - *; -}; diff --git a/tiff/libtiff/libtiffxx.map b/tiff/libtiff/libtiffxx.map deleted file mode 100755 index e2f648f..0000000 --- a/tiff/libtiff/libtiffxx.map +++ /dev/null @@ -1,4 +0,0 @@ -LIBTIFFXX_4.0 { - global: - *; -}; diff --git a/tiff/libtiff/mkg3states.c b/tiff/libtiff/mkg3states.c deleted file mode 100755 index 1df9ccc..0000000 --- a/tiff/libtiff/mkg3states.c +++ /dev/null @@ -1,451 +0,0 @@ -/* "$Id: mkg3states.c,v 1.11 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* Initialise fax decoder tables - * Decoder support is derived, with permission, from the code - * in Frank Cringle's viewfax program; - * Copyright (C) 1990, 1995 Frank D. Cringle. - */ -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tif_fax3.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#define streq(a,b) (strcmp(a,b) == 0) - -/* NB: can't use names in tif_fax3.h 'cuz they are declared const */ -TIFFFaxTabEnt MainTable[128]; -TIFFFaxTabEnt WhiteTable[4096]; -TIFFFaxTabEnt BlackTable[8192]; - -struct proto { - uint16 code; /* right justified, lsb-first, zero filled */ - uint16 val; /* (pixel count)<<4 + code width */ -}; - -static struct proto Pass[] = { -{ 0x0008, 4 }, -{ 0, 0 } -}; - -static struct proto Horiz[] = { -{ 0x0004, 3 }, -{ 0, 0 } -}; - -static struct proto V0[] = { -{ 0x0001, 1 }, -{ 0, 0 } -}; - -static struct proto VR[] = { -{ 0x0006, (1<<4)+3 }, -{ 0x0030, (2<<4)+6 }, -{ 0x0060, (3<<4)+7 }, -{ 0, 0 } -}; - -static struct proto VL[] = { -{ 0x0002, (1<<4)+3 }, -{ 0x0010, (2<<4)+6 }, -{ 0x0020, (3<<4)+7 }, -{ 0, 0 } -}; - -static struct proto Ext[] = { -{ 0x0040, 7 }, -{ 0, 0 } -}; - -static struct proto EOLV[] = { -{ 0x0000, 7 }, -{ 0, 0 } -}; - -static struct proto MakeUpW[] = { -{ 0x001b, 1029 }, -{ 0x0009, 2053 }, -{ 0x003a, 3078 }, -{ 0x0076, 4103 }, -{ 0x006c, 5128 }, -{ 0x00ec, 6152 }, -{ 0x0026, 7176 }, -{ 0x00a6, 8200 }, -{ 0x0016, 9224 }, -{ 0x00e6, 10248 }, -{ 0x0066, 11273 }, -{ 0x0166, 12297 }, -{ 0x0096, 13321 }, -{ 0x0196, 14345 }, -{ 0x0056, 15369 }, -{ 0x0156, 16393 }, -{ 0x00d6, 17417 }, -{ 0x01d6, 18441 }, -{ 0x0036, 19465 }, -{ 0x0136, 20489 }, -{ 0x00b6, 21513 }, -{ 0x01b6, 22537 }, -{ 0x0032, 23561 }, -{ 0x0132, 24585 }, -{ 0x00b2, 25609 }, -{ 0x0006, 26630 }, -{ 0x01b2, 27657 }, -{ 0, 0 } -}; - -static struct proto MakeUpB[] = { -{ 0x03c0, 1034 }, -{ 0x0130, 2060 }, -{ 0x0930, 3084 }, -{ 0x0da0, 4108 }, -{ 0x0cc0, 5132 }, -{ 0x02c0, 6156 }, -{ 0x0ac0, 7180 }, -{ 0x06c0, 8205 }, -{ 0x16c0, 9229 }, -{ 0x0a40, 10253 }, -{ 0x1a40, 11277 }, -{ 0x0640, 12301 }, -{ 0x1640, 13325 }, -{ 0x09c0, 14349 }, -{ 0x19c0, 15373 }, -{ 0x05c0, 16397 }, -{ 0x15c0, 17421 }, -{ 0x0dc0, 18445 }, -{ 0x1dc0, 19469 }, -{ 0x0940, 20493 }, -{ 0x1940, 21517 }, -{ 0x0540, 22541 }, -{ 0x1540, 23565 }, -{ 0x0b40, 24589 }, -{ 0x1b40, 25613 }, -{ 0x04c0, 26637 }, -{ 0x14c0, 27661 }, -{ 0, 0 } -}; - -static struct proto MakeUp[] = { -{ 0x0080, 28683 }, -{ 0x0180, 29707 }, -{ 0x0580, 30731 }, -{ 0x0480, 31756 }, -{ 0x0c80, 32780 }, -{ 0x0280, 33804 }, -{ 0x0a80, 34828 }, -{ 0x0680, 35852 }, -{ 0x0e80, 36876 }, -{ 0x0380, 37900 }, -{ 0x0b80, 38924 }, -{ 0x0780, 39948 }, -{ 0x0f80, 40972 }, -{ 0, 0 } -}; - -static struct proto TermW[] = { -{ 0x00ac, 8 }, -{ 0x0038, 22 }, -{ 0x000e, 36 }, -{ 0x0001, 52 }, -{ 0x000d, 68 }, -{ 0x0003, 84 }, -{ 0x0007, 100 }, -{ 0x000f, 116 }, -{ 0x0019, 133 }, -{ 0x0005, 149 }, -{ 0x001c, 165 }, -{ 0x0002, 181 }, -{ 0x0004, 198 }, -{ 0x0030, 214 }, -{ 0x000b, 230 }, -{ 0x002b, 246 }, -{ 0x0015, 262 }, -{ 0x0035, 278 }, -{ 0x0072, 295 }, -{ 0x0018, 311 }, -{ 0x0008, 327 }, -{ 0x0074, 343 }, -{ 0x0060, 359 }, -{ 0x0010, 375 }, -{ 0x000a, 391 }, -{ 0x006a, 407 }, -{ 0x0064, 423 }, -{ 0x0012, 439 }, -{ 0x000c, 455 }, -{ 0x0040, 472 }, -{ 0x00c0, 488 }, -{ 0x0058, 504 }, -{ 0x00d8, 520 }, -{ 0x0048, 536 }, -{ 0x00c8, 552 }, -{ 0x0028, 568 }, -{ 0x00a8, 584 }, -{ 0x0068, 600 }, -{ 0x00e8, 616 }, -{ 0x0014, 632 }, -{ 0x0094, 648 }, -{ 0x0054, 664 }, -{ 0x00d4, 680 }, -{ 0x0034, 696 }, -{ 0x00b4, 712 }, -{ 0x0020, 728 }, -{ 0x00a0, 744 }, -{ 0x0050, 760 }, -{ 0x00d0, 776 }, -{ 0x004a, 792 }, -{ 0x00ca, 808 }, -{ 0x002a, 824 }, -{ 0x00aa, 840 }, -{ 0x0024, 856 }, -{ 0x00a4, 872 }, -{ 0x001a, 888 }, -{ 0x009a, 904 }, -{ 0x005a, 920 }, -{ 0x00da, 936 }, -{ 0x0052, 952 }, -{ 0x00d2, 968 }, -{ 0x004c, 984 }, -{ 0x00cc, 1000 }, -{ 0x002c, 1016 }, -{ 0, 0 } -}; - -static struct proto TermB[] = { -{ 0x03b0, 10 }, -{ 0x0002, 19 }, -{ 0x0003, 34 }, -{ 0x0001, 50 }, -{ 0x0006, 67 }, -{ 0x000c, 84 }, -{ 0x0004, 100 }, -{ 0x0018, 117 }, -{ 0x0028, 134 }, -{ 0x0008, 150 }, -{ 0x0010, 167 }, -{ 0x0050, 183 }, -{ 0x0070, 199 }, -{ 0x0020, 216 }, -{ 0x00e0, 232 }, -{ 0x0030, 249 }, -{ 0x03a0, 266 }, -{ 0x0060, 282 }, -{ 0x0040, 298 }, -{ 0x0730, 315 }, -{ 0x00b0, 331 }, -{ 0x01b0, 347 }, -{ 0x0760, 363 }, -{ 0x00a0, 379 }, -{ 0x0740, 395 }, -{ 0x00c0, 411 }, -{ 0x0530, 428 }, -{ 0x0d30, 444 }, -{ 0x0330, 460 }, -{ 0x0b30, 476 }, -{ 0x0160, 492 }, -{ 0x0960, 508 }, -{ 0x0560, 524 }, -{ 0x0d60, 540 }, -{ 0x04b0, 556 }, -{ 0x0cb0, 572 }, -{ 0x02b0, 588 }, -{ 0x0ab0, 604 }, -{ 0x06b0, 620 }, -{ 0x0eb0, 636 }, -{ 0x0360, 652 }, -{ 0x0b60, 668 }, -{ 0x05b0, 684 }, -{ 0x0db0, 700 }, -{ 0x02a0, 716 }, -{ 0x0aa0, 732 }, -{ 0x06a0, 748 }, -{ 0x0ea0, 764 }, -{ 0x0260, 780 }, -{ 0x0a60, 796 }, -{ 0x04a0, 812 }, -{ 0x0ca0, 828 }, -{ 0x0240, 844 }, -{ 0x0ec0, 860 }, -{ 0x01c0, 876 }, -{ 0x0e40, 892 }, -{ 0x0140, 908 }, -{ 0x01a0, 924 }, -{ 0x09a0, 940 }, -{ 0x0d40, 956 }, -{ 0x0340, 972 }, -{ 0x05a0, 988 }, -{ 0x0660, 1004 }, -{ 0x0e60, 1020 }, -{ 0, 0 } -}; - -static struct proto EOLH[] = { -{ 0x0000, 11 }, -{ 0, 0 } -}; - -static void -FillTable(TIFFFaxTabEnt *T, int Size, struct proto *P, int State) -{ - int limit = 1 << Size; - - while (P->val) { - int width = P->val & 15; - int param = P->val >> 4; - int incr = 1 << width; - int code; - for (code = P->code; code < limit; code += incr) { - TIFFFaxTabEnt *E = T+code; - E->State = State; - E->Width = width; - E->Param = param; - } - P++; - } -} - -static char* storage_class = ""; -static char* const_class = ""; -static int packoutput = 1; -static char* prebrace = ""; -static char* postbrace = ""; - -void -WriteTable(FILE* fd, const TIFFFaxTabEnt* T, int Size, const char* name) -{ - int i; - char* sep; - - fprintf(fd, "%s %s TIFFFaxTabEnt %s[%d] = {", - storage_class, const_class, name, Size); - if (packoutput) { - sep = "\n"; - for (i = 0; i < Size; i++) { - fprintf(fd, "%s%s%d,%d,%d%s", - sep, prebrace, T->State, T->Width, (int) T->Param, postbrace); - if (((i+1) % 10) == 0) - sep = ",\n"; - else - sep = ","; - T++; - } - } else { - sep = "\n "; - for (i = 0; i < Size; i++) { - fprintf(fd, "%s%s%3d,%3d,%4d%s", - sep, prebrace, T->State, T->Width, (int) T->Param, postbrace); - if (((i+1) % 6) == 0) - sep = ",\n "; - else - sep = ","; - T++; - } - } - fprintf(fd, "\n};\n"); -} - -/* initialise the huffman code tables */ -int -main(int argc, char* argv[]) -{ - FILE* fd; - char* outputfile; - int c; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "c:s:bp")) != -1) - switch (c) { - case 'c': - const_class = optarg; - break; - case 's': - storage_class = optarg; - break; - case 'p': - packoutput = 0; - break; - case 'b': - prebrace = "{"; - postbrace = "}"; - break; - case '?': - fprintf(stderr, - "usage: %s [-c const] [-s storage] [-p] [-b] file\n", - argv[0]); - return (-1); - } - outputfile = optind < argc ? argv[optind] : "g3states.h"; - fd = fopen(outputfile, "w"); - if (fd == NULL) { - fprintf(stderr, "%s: %s: Cannot create output file.\n", - argv[0], outputfile); - return (-2); - } - FillTable(MainTable, 7, Pass, S_Pass); - FillTable(MainTable, 7, Horiz, S_Horiz); - FillTable(MainTable, 7, V0, S_V0); - FillTable(MainTable, 7, VR, S_VR); - FillTable(MainTable, 7, VL, S_VL); - FillTable(MainTable, 7, Ext, S_Ext); - FillTable(MainTable, 7, EOLV, S_EOL); - FillTable(WhiteTable, 12, MakeUpW, S_MakeUpW); - FillTable(WhiteTable, 12, MakeUp, S_MakeUp); - FillTable(WhiteTable, 12, TermW, S_TermW); - FillTable(WhiteTable, 12, EOLH, S_EOL); - FillTable(BlackTable, 13, MakeUpB, S_MakeUpB); - FillTable(BlackTable, 13, MakeUp, S_MakeUp); - FillTable(BlackTable, 13, TermB, S_TermB); - FillTable(BlackTable, 13, EOLH, S_EOL); - - fprintf(fd, "/* WARNING, this file was automatically generated by the\n"); - fprintf(fd, " mkg3states program */\n"); - fprintf(fd, "#include \"tiff.h\"\n"); - fprintf(fd, "#include \"tif_fax3.h\"\n"); - WriteTable(fd, MainTable, 128, "TIFFFaxMainTable"); - WriteTable(fd, WhiteTable, 4096, "TIFFFaxWhiteTable"); - WriteTable(fd, BlackTable, 8192, "TIFFFaxBlackTable"); - fclose(fd); - return (0); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/t4.h b/tiff/libtiff/t4.h deleted file mode 100755 index b908f54..0000000 --- a/tiff/libtiff/t4.h +++ /dev/null @@ -1,292 +0,0 @@ -/* $Id: t4.h,v 1.3 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _T4_ -#define _T4_ -/* - * CCITT T.4 1D Huffman runlength codes and - * related definitions. Given the small sizes - * of these tables it does not seem - * worthwhile to make code & length 8 bits. - */ -typedef struct tableentry { - unsigned short length; /* bit length of g3 code */ - unsigned short code; /* g3 code */ - short runlen; /* run length in bits */ -} tableentry; - -#define EOL 0x001 /* EOL code value - 0000 0000 0000 1 */ - -/* status values returned instead of a run length */ -#define G3CODE_EOL -1 /* NB: ACT_EOL - ACT_WRUNT */ -#define G3CODE_INVALID -2 /* NB: ACT_INVALID - ACT_WRUNT */ -#define G3CODE_EOF -3 /* end of input data */ -#define G3CODE_INCOMP -4 /* incomplete run code */ - -/* - * Note that these tables are ordered such that the - * index into the table is known to be either the - * run length, or (run length / 64) + a fixed offset. - * - * NB: The G3CODE_INVALID entries are only used - * during state generation (see mkg3states.c). - */ -#ifdef G3CODES -const tableentry TIFFFaxWhiteCodes[] = { - { 8, 0x35, 0 }, /* 0011 0101 */ - { 6, 0x7, 1 }, /* 0001 11 */ - { 4, 0x7, 2 }, /* 0111 */ - { 4, 0x8, 3 }, /* 1000 */ - { 4, 0xB, 4 }, /* 1011 */ - { 4, 0xC, 5 }, /* 1100 */ - { 4, 0xE, 6 }, /* 1110 */ - { 4, 0xF, 7 }, /* 1111 */ - { 5, 0x13, 8 }, /* 1001 1 */ - { 5, 0x14, 9 }, /* 1010 0 */ - { 5, 0x7, 10 }, /* 0011 1 */ - { 5, 0x8, 11 }, /* 0100 0 */ - { 6, 0x8, 12 }, /* 0010 00 */ - { 6, 0x3, 13 }, /* 0000 11 */ - { 6, 0x34, 14 }, /* 1101 00 */ - { 6, 0x35, 15 }, /* 1101 01 */ - { 6, 0x2A, 16 }, /* 1010 10 */ - { 6, 0x2B, 17 }, /* 1010 11 */ - { 7, 0x27, 18 }, /* 0100 111 */ - { 7, 0xC, 19 }, /* 0001 100 */ - { 7, 0x8, 20 }, /* 0001 000 */ - { 7, 0x17, 21 }, /* 0010 111 */ - { 7, 0x3, 22 }, /* 0000 011 */ - { 7, 0x4, 23 }, /* 0000 100 */ - { 7, 0x28, 24 }, /* 0101 000 */ - { 7, 0x2B, 25 }, /* 0101 011 */ - { 7, 0x13, 26 }, /* 0010 011 */ - { 7, 0x24, 27 }, /* 0100 100 */ - { 7, 0x18, 28 }, /* 0011 000 */ - { 8, 0x2, 29 }, /* 0000 0010 */ - { 8, 0x3, 30 }, /* 0000 0011 */ - { 8, 0x1A, 31 }, /* 0001 1010 */ - { 8, 0x1B, 32 }, /* 0001 1011 */ - { 8, 0x12, 33 }, /* 0001 0010 */ - { 8, 0x13, 34 }, /* 0001 0011 */ - { 8, 0x14, 35 }, /* 0001 0100 */ - { 8, 0x15, 36 }, /* 0001 0101 */ - { 8, 0x16, 37 }, /* 0001 0110 */ - { 8, 0x17, 38 }, /* 0001 0111 */ - { 8, 0x28, 39 }, /* 0010 1000 */ - { 8, 0x29, 40 }, /* 0010 1001 */ - { 8, 0x2A, 41 }, /* 0010 1010 */ - { 8, 0x2B, 42 }, /* 0010 1011 */ - { 8, 0x2C, 43 }, /* 0010 1100 */ - { 8, 0x2D, 44 }, /* 0010 1101 */ - { 8, 0x4, 45 }, /* 0000 0100 */ - { 8, 0x5, 46 }, /* 0000 0101 */ - { 8, 0xA, 47 }, /* 0000 1010 */ - { 8, 0xB, 48 }, /* 0000 1011 */ - { 8, 0x52, 49 }, /* 0101 0010 */ - { 8, 0x53, 50 }, /* 0101 0011 */ - { 8, 0x54, 51 }, /* 0101 0100 */ - { 8, 0x55, 52 }, /* 0101 0101 */ - { 8, 0x24, 53 }, /* 0010 0100 */ - { 8, 0x25, 54 }, /* 0010 0101 */ - { 8, 0x58, 55 }, /* 0101 1000 */ - { 8, 0x59, 56 }, /* 0101 1001 */ - { 8, 0x5A, 57 }, /* 0101 1010 */ - { 8, 0x5B, 58 }, /* 0101 1011 */ - { 8, 0x4A, 59 }, /* 0100 1010 */ - { 8, 0x4B, 60 }, /* 0100 1011 */ - { 8, 0x32, 61 }, /* 0011 0010 */ - { 8, 0x33, 62 }, /* 0011 0011 */ - { 8, 0x34, 63 }, /* 0011 0100 */ - { 5, 0x1B, 64 }, /* 1101 1 */ - { 5, 0x12, 128 }, /* 1001 0 */ - { 6, 0x17, 192 }, /* 0101 11 */ - { 7, 0x37, 256 }, /* 0110 111 */ - { 8, 0x36, 320 }, /* 0011 0110 */ - { 8, 0x37, 384 }, /* 0011 0111 */ - { 8, 0x64, 448 }, /* 0110 0100 */ - { 8, 0x65, 512 }, /* 0110 0101 */ - { 8, 0x68, 576 }, /* 0110 1000 */ - { 8, 0x67, 640 }, /* 0110 0111 */ - { 9, 0xCC, 704 }, /* 0110 0110 0 */ - { 9, 0xCD, 768 }, /* 0110 0110 1 */ - { 9, 0xD2, 832 }, /* 0110 1001 0 */ - { 9, 0xD3, 896 }, /* 0110 1001 1 */ - { 9, 0xD4, 960 }, /* 0110 1010 0 */ - { 9, 0xD5, 1024 }, /* 0110 1010 1 */ - { 9, 0xD6, 1088 }, /* 0110 1011 0 */ - { 9, 0xD7, 1152 }, /* 0110 1011 1 */ - { 9, 0xD8, 1216 }, /* 0110 1100 0 */ - { 9, 0xD9, 1280 }, /* 0110 1100 1 */ - { 9, 0xDA, 1344 }, /* 0110 1101 0 */ - { 9, 0xDB, 1408 }, /* 0110 1101 1 */ - { 9, 0x98, 1472 }, /* 0100 1100 0 */ - { 9, 0x99, 1536 }, /* 0100 1100 1 */ - { 9, 0x9A, 1600 }, /* 0100 1101 0 */ - { 6, 0x18, 1664 }, /* 0110 00 */ - { 9, 0x9B, 1728 }, /* 0100 1101 1 */ - { 11, 0x8, 1792 }, /* 0000 0001 000 */ - { 11, 0xC, 1856 }, /* 0000 0001 100 */ - { 11, 0xD, 1920 }, /* 0000 0001 101 */ - { 12, 0x12, 1984 }, /* 0000 0001 0010 */ - { 12, 0x13, 2048 }, /* 0000 0001 0011 */ - { 12, 0x14, 2112 }, /* 0000 0001 0100 */ - { 12, 0x15, 2176 }, /* 0000 0001 0101 */ - { 12, 0x16, 2240 }, /* 0000 0001 0110 */ - { 12, 0x17, 2304 }, /* 0000 0001 0111 */ - { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ - { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ - { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ - { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ - { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ - { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ - { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ - { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ - { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ -}; - -const tableentry TIFFFaxBlackCodes[] = { - { 10, 0x37, 0 }, /* 0000 1101 11 */ - { 3, 0x2, 1 }, /* 010 */ - { 2, 0x3, 2 }, /* 11 */ - { 2, 0x2, 3 }, /* 10 */ - { 3, 0x3, 4 }, /* 011 */ - { 4, 0x3, 5 }, /* 0011 */ - { 4, 0x2, 6 }, /* 0010 */ - { 5, 0x3, 7 }, /* 0001 1 */ - { 6, 0x5, 8 }, /* 0001 01 */ - { 6, 0x4, 9 }, /* 0001 00 */ - { 7, 0x4, 10 }, /* 0000 100 */ - { 7, 0x5, 11 }, /* 0000 101 */ - { 7, 0x7, 12 }, /* 0000 111 */ - { 8, 0x4, 13 }, /* 0000 0100 */ - { 8, 0x7, 14 }, /* 0000 0111 */ - { 9, 0x18, 15 }, /* 0000 1100 0 */ - { 10, 0x17, 16 }, /* 0000 0101 11 */ - { 10, 0x18, 17 }, /* 0000 0110 00 */ - { 10, 0x8, 18 }, /* 0000 0010 00 */ - { 11, 0x67, 19 }, /* 0000 1100 111 */ - { 11, 0x68, 20 }, /* 0000 1101 000 */ - { 11, 0x6C, 21 }, /* 0000 1101 100 */ - { 11, 0x37, 22 }, /* 0000 0110 111 */ - { 11, 0x28, 23 }, /* 0000 0101 000 */ - { 11, 0x17, 24 }, /* 0000 0010 111 */ - { 11, 0x18, 25 }, /* 0000 0011 000 */ - { 12, 0xCA, 26 }, /* 0000 1100 1010 */ - { 12, 0xCB, 27 }, /* 0000 1100 1011 */ - { 12, 0xCC, 28 }, /* 0000 1100 1100 */ - { 12, 0xCD, 29 }, /* 0000 1100 1101 */ - { 12, 0x68, 30 }, /* 0000 0110 1000 */ - { 12, 0x69, 31 }, /* 0000 0110 1001 */ - { 12, 0x6A, 32 }, /* 0000 0110 1010 */ - { 12, 0x6B, 33 }, /* 0000 0110 1011 */ - { 12, 0xD2, 34 }, /* 0000 1101 0010 */ - { 12, 0xD3, 35 }, /* 0000 1101 0011 */ - { 12, 0xD4, 36 }, /* 0000 1101 0100 */ - { 12, 0xD5, 37 }, /* 0000 1101 0101 */ - { 12, 0xD6, 38 }, /* 0000 1101 0110 */ - { 12, 0xD7, 39 }, /* 0000 1101 0111 */ - { 12, 0x6C, 40 }, /* 0000 0110 1100 */ - { 12, 0x6D, 41 }, /* 0000 0110 1101 */ - { 12, 0xDA, 42 }, /* 0000 1101 1010 */ - { 12, 0xDB, 43 }, /* 0000 1101 1011 */ - { 12, 0x54, 44 }, /* 0000 0101 0100 */ - { 12, 0x55, 45 }, /* 0000 0101 0101 */ - { 12, 0x56, 46 }, /* 0000 0101 0110 */ - { 12, 0x57, 47 }, /* 0000 0101 0111 */ - { 12, 0x64, 48 }, /* 0000 0110 0100 */ - { 12, 0x65, 49 }, /* 0000 0110 0101 */ - { 12, 0x52, 50 }, /* 0000 0101 0010 */ - { 12, 0x53, 51 }, /* 0000 0101 0011 */ - { 12, 0x24, 52 }, /* 0000 0010 0100 */ - { 12, 0x37, 53 }, /* 0000 0011 0111 */ - { 12, 0x38, 54 }, /* 0000 0011 1000 */ - { 12, 0x27, 55 }, /* 0000 0010 0111 */ - { 12, 0x28, 56 }, /* 0000 0010 1000 */ - { 12, 0x58, 57 }, /* 0000 0101 1000 */ - { 12, 0x59, 58 }, /* 0000 0101 1001 */ - { 12, 0x2B, 59 }, /* 0000 0010 1011 */ - { 12, 0x2C, 60 }, /* 0000 0010 1100 */ - { 12, 0x5A, 61 }, /* 0000 0101 1010 */ - { 12, 0x66, 62 }, /* 0000 0110 0110 */ - { 12, 0x67, 63 }, /* 0000 0110 0111 */ - { 10, 0xF, 64 }, /* 0000 0011 11 */ - { 12, 0xC8, 128 }, /* 0000 1100 1000 */ - { 12, 0xC9, 192 }, /* 0000 1100 1001 */ - { 12, 0x5B, 256 }, /* 0000 0101 1011 */ - { 12, 0x33, 320 }, /* 0000 0011 0011 */ - { 12, 0x34, 384 }, /* 0000 0011 0100 */ - { 12, 0x35, 448 }, /* 0000 0011 0101 */ - { 13, 0x6C, 512 }, /* 0000 0011 0110 0 */ - { 13, 0x6D, 576 }, /* 0000 0011 0110 1 */ - { 13, 0x4A, 640 }, /* 0000 0010 0101 0 */ - { 13, 0x4B, 704 }, /* 0000 0010 0101 1 */ - { 13, 0x4C, 768 }, /* 0000 0010 0110 0 */ - { 13, 0x4D, 832 }, /* 0000 0010 0110 1 */ - { 13, 0x72, 896 }, /* 0000 0011 1001 0 */ - { 13, 0x73, 960 }, /* 0000 0011 1001 1 */ - { 13, 0x74, 1024 }, /* 0000 0011 1010 0 */ - { 13, 0x75, 1088 }, /* 0000 0011 1010 1 */ - { 13, 0x76, 1152 }, /* 0000 0011 1011 0 */ - { 13, 0x77, 1216 }, /* 0000 0011 1011 1 */ - { 13, 0x52, 1280 }, /* 0000 0010 1001 0 */ - { 13, 0x53, 1344 }, /* 0000 0010 1001 1 */ - { 13, 0x54, 1408 }, /* 0000 0010 1010 0 */ - { 13, 0x55, 1472 }, /* 0000 0010 1010 1 */ - { 13, 0x5A, 1536 }, /* 0000 0010 1101 0 */ - { 13, 0x5B, 1600 }, /* 0000 0010 1101 1 */ - { 13, 0x64, 1664 }, /* 0000 0011 0010 0 */ - { 13, 0x65, 1728 }, /* 0000 0011 0010 1 */ - { 11, 0x8, 1792 }, /* 0000 0001 000 */ - { 11, 0xC, 1856 }, /* 0000 0001 100 */ - { 11, 0xD, 1920 }, /* 0000 0001 101 */ - { 12, 0x12, 1984 }, /* 0000 0001 0010 */ - { 12, 0x13, 2048 }, /* 0000 0001 0011 */ - { 12, 0x14, 2112 }, /* 0000 0001 0100 */ - { 12, 0x15, 2176 }, /* 0000 0001 0101 */ - { 12, 0x16, 2240 }, /* 0000 0001 0110 */ - { 12, 0x17, 2304 }, /* 0000 0001 0111 */ - { 12, 0x1C, 2368 }, /* 0000 0001 1100 */ - { 12, 0x1D, 2432 }, /* 0000 0001 1101 */ - { 12, 0x1E, 2496 }, /* 0000 0001 1110 */ - { 12, 0x1F, 2560 }, /* 0000 0001 1111 */ - { 12, 0x1, G3CODE_EOL }, /* 0000 0000 0001 */ - { 9, 0x1, G3CODE_INVALID }, /* 0000 0000 1 */ - { 10, 0x1, G3CODE_INVALID }, /* 0000 0000 01 */ - { 11, 0x1, G3CODE_INVALID }, /* 0000 0000 001 */ - { 12, 0x0, G3CODE_INVALID }, /* 0000 0000 0000 */ -}; -#else -extern const tableentry TIFFFaxWhiteCodes[]; -extern const tableentry TIFFFaxBlackCodes[]; -#endif -#endif /* _T4_ */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_aux.c b/tiff/libtiff/tif_aux.c deleted file mode 100755 index 927150a..0000000 --- a/tiff/libtiff/tif_aux.c +++ /dev/null @@ -1,358 +0,0 @@ -/* $Id: tif_aux.c,v 1.26 2010-07-01 15:33:28 dron Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Auxiliary Support Routines. - */ -#include "tiffiop.h" -#include "tif_predict.h" -#include - -uint32 -_TIFFMultiply32(TIFF* tif, uint32 first, uint32 second, const char* where) -{ - uint32 bytes = first * second; - - if (second && bytes / second != first) { - TIFFErrorExt(tif->tif_clientdata, where, "Integer overflow in %s", where); - bytes = 0; - } - - return bytes; -} - -uint64 -_TIFFMultiply64(TIFF* tif, uint64 first, uint64 second, const char* where) -{ - uint64 bytes = first * second; - - if (second && bytes / second != first) { - TIFFErrorExt(tif->tif_clientdata, where, "Integer overflow in %s", where); - bytes = 0; - } - - return bytes; -} - -void* -_TIFFCheckRealloc(TIFF* tif, void* buffer, - tmsize_t nmemb, tmsize_t elem_size, const char* what) -{ - void* cp = NULL; - tmsize_t bytes = nmemb * elem_size; - - /* - * XXX: Check for integer overflow. - */ - if (nmemb && elem_size && bytes / elem_size == nmemb) - cp = _TIFFrealloc(buffer, bytes); - - if (cp == NULL) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Failed to allocate memory for %s " - "(%ld elements of %ld bytes each)", - what,(long) nmemb, (long) elem_size); - } - - return cp; -} - -void* -_TIFFCheckMalloc(TIFF* tif, tmsize_t nmemb, tmsize_t elem_size, const char* what) -{ - return _TIFFCheckRealloc(tif, NULL, nmemb, elem_size, what); -} - -static int -TIFFDefaultTransferFunction(TIFFDirectory* td) -{ - uint16 **tf = td->td_transferfunction; - tmsize_t i, n, nbytes; - - tf[0] = tf[1] = tf[2] = 0; - if (td->td_bitspersample >= sizeof(tmsize_t) * 8 - 2) - return 0; - - n = ((tmsize_t)1)<td_bitspersample; - nbytes = n * sizeof (uint16); - if (!(tf[0] = (uint16 *)_TIFFmalloc(nbytes))) - return 0; - tf[0][0] = 0; - for (i = 1; i < n; i++) { - double t = (double)i/((double) n-1.); - tf[0][i] = (uint16)floor(65535.*pow(t, 2.2) + .5); - } - - if (td->td_samplesperpixel - td->td_extrasamples > 1) { - if (!(tf[1] = (uint16 *)_TIFFmalloc(nbytes))) - goto bad; - _TIFFmemcpy(tf[1], tf[0], nbytes); - if (!(tf[2] = (uint16 *)_TIFFmalloc(nbytes))) - goto bad; - _TIFFmemcpy(tf[2], tf[0], nbytes); - } - return 1; - -bad: - if (tf[0]) - _TIFFfree(tf[0]); - if (tf[1]) - _TIFFfree(tf[1]); - if (tf[2]) - _TIFFfree(tf[2]); - tf[0] = tf[1] = tf[2] = 0; - return 0; -} - -static int -TIFFDefaultRefBlackWhite(TIFFDirectory* td) -{ - int i; - - if (!(td->td_refblackwhite = (float *)_TIFFmalloc(6*sizeof (float)))) - return 0; - if (td->td_photometric == PHOTOMETRIC_YCBCR) { - /* - * YCbCr (Class Y) images must have the ReferenceBlackWhite - * tag set. Fix the broken images, which lacks that tag. - */ - td->td_refblackwhite[0] = 0.0F; - td->td_refblackwhite[1] = td->td_refblackwhite[3] = - td->td_refblackwhite[5] = 255.0F; - td->td_refblackwhite[2] = td->td_refblackwhite[4] = 128.0F; - } else { - /* - * Assume RGB (Class R) - */ - for (i = 0; i < 3; i++) { - td->td_refblackwhite[2*i+0] = 0; - td->td_refblackwhite[2*i+1] = - (float)((1L<td_bitspersample)-1L); - } - } - return 1; -} - -/* - * Like TIFFGetField, but return any default - * value if the tag is not present in the directory. - * - * NB: We use the value in the directory, rather than - * explcit values so that defaults exist only one - * place in the library -- in TIFFDefaultDirectory. - */ -int -TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (TIFFVGetField(tif, tag, ap)) - return (1); - switch (tag) { - case TIFFTAG_SUBFILETYPE: - *va_arg(ap, uint32 *) = td->td_subfiletype; - return (1); - case TIFFTAG_BITSPERSAMPLE: - *va_arg(ap, uint16 *) = td->td_bitspersample; - return (1); - case TIFFTAG_THRESHHOLDING: - *va_arg(ap, uint16 *) = td->td_threshholding; - return (1); - case TIFFTAG_FILLORDER: - *va_arg(ap, uint16 *) = td->td_fillorder; - return (1); - case TIFFTAG_ORIENTATION: - *va_arg(ap, uint16 *) = td->td_orientation; - return (1); - case TIFFTAG_SAMPLESPERPIXEL: - *va_arg(ap, uint16 *) = td->td_samplesperpixel; - return (1); - case TIFFTAG_ROWSPERSTRIP: - *va_arg(ap, uint32 *) = td->td_rowsperstrip; - return (1); - case TIFFTAG_MINSAMPLEVALUE: - *va_arg(ap, uint16 *) = td->td_minsamplevalue; - return (1); - case TIFFTAG_MAXSAMPLEVALUE: - *va_arg(ap, uint16 *) = td->td_maxsamplevalue; - return (1); - case TIFFTAG_PLANARCONFIG: - *va_arg(ap, uint16 *) = td->td_planarconfig; - return (1); - case TIFFTAG_RESOLUTIONUNIT: - *va_arg(ap, uint16 *) = td->td_resolutionunit; - return (1); - case TIFFTAG_PREDICTOR: - { - TIFFPredictorState* sp = (TIFFPredictorState*) tif->tif_data; - *va_arg(ap, uint16*) = (uint16) sp->predictor; - return 1; - } - case TIFFTAG_DOTRANGE: - *va_arg(ap, uint16 *) = 0; - *va_arg(ap, uint16 *) = (1<td_bitspersample)-1; - return (1); - case TIFFTAG_INKSET: - *va_arg(ap, uint16 *) = INKSET_CMYK; - return 1; - case TIFFTAG_NUMBEROFINKS: - *va_arg(ap, uint16 *) = 4; - return (1); - case TIFFTAG_EXTRASAMPLES: - *va_arg(ap, uint16 *) = td->td_extrasamples; - *va_arg(ap, uint16 **) = td->td_sampleinfo; - return (1); - case TIFFTAG_MATTEING: - *va_arg(ap, uint16 *) = - (td->td_extrasamples == 1 && - td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); - return (1); - case TIFFTAG_TILEDEPTH: - *va_arg(ap, uint32 *) = td->td_tiledepth; - return (1); - case TIFFTAG_DATATYPE: - *va_arg(ap, uint16 *) = td->td_sampleformat-1; - return (1); - case TIFFTAG_SAMPLEFORMAT: - *va_arg(ap, uint16 *) = td->td_sampleformat; - return(1); - case TIFFTAG_IMAGEDEPTH: - *va_arg(ap, uint32 *) = td->td_imagedepth; - return (1); - case TIFFTAG_YCBCRCOEFFICIENTS: - { - /* defaults are from CCIR Recommendation 601-1 */ - static float ycbcrcoeffs[] = { 0.299f, 0.587f, 0.114f }; - *va_arg(ap, float **) = ycbcrcoeffs; - return 1; - } - case TIFFTAG_YCBCRSUBSAMPLING: - *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[0]; - *va_arg(ap, uint16 *) = td->td_ycbcrsubsampling[1]; - return (1); - case TIFFTAG_YCBCRPOSITIONING: - *va_arg(ap, uint16 *) = td->td_ycbcrpositioning; - return (1); - case TIFFTAG_WHITEPOINT: - { - static float whitepoint[2]; - - /* TIFF 6.0 specification tells that it is no default - value for the WhitePoint, but AdobePhotoshop TIFF - Technical Note tells that it should be CIE D50. */ - whitepoint[0] = D50_X0 / (D50_X0 + D50_Y0 + D50_Z0); - whitepoint[1] = D50_Y0 / (D50_X0 + D50_Y0 + D50_Z0); - *va_arg(ap, float **) = whitepoint; - return 1; - } - case TIFFTAG_TRANSFERFUNCTION: - if (!td->td_transferfunction[0] && - !TIFFDefaultTransferFunction(td)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "No space for \"TransferFunction\" tag"); - return (0); - } - *va_arg(ap, uint16 **) = td->td_transferfunction[0]; - if (td->td_samplesperpixel - td->td_extrasamples > 1) { - *va_arg(ap, uint16 **) = td->td_transferfunction[1]; - *va_arg(ap, uint16 **) = td->td_transferfunction[2]; - } - return (1); - case TIFFTAG_REFERENCEBLACKWHITE: - if (!td->td_refblackwhite && !TIFFDefaultRefBlackWhite(td)) - return (0); - *va_arg(ap, float **) = td->td_refblackwhite; - return (1); - } - return 0; -} - -/* - * Like TIFFGetField, but return any default - * value if the tag is not present in the directory. - */ -int -TIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...) -{ - int ok; - va_list ap; - - va_start(ap, tag); - ok = TIFFVGetFieldDefaulted(tif, tag, ap); - va_end(ap); - return (ok); -} - -struct _Int64Parts { - int32 low, high; -}; - -typedef union { - struct _Int64Parts part; - int64 value; -} _Int64; - -float -_TIFFUInt64ToFloat(uint64 ui64) -{ - _Int64 i; - - i.value = ui64; - if (i.part.high >= 0) { - return (float)i.value; - } else { - long double df; - df = (long double)i.value; - df += 18446744073709551616.0; /* adding 2**64 */ - return (float)df; - } -} - -double -_TIFFUInt64ToDouble(uint64 ui64) -{ - _Int64 i; - - i.value = ui64; - if (i.part.high >= 0) { - return (double)i.value; - } else { - long double df; - df = (long double)i.value; - df += 18446744073709551616.0; /* adding 2**64 */ - return (double)df; - } -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_close.c b/tiff/libtiff/tif_close.c deleted file mode 100755 index 13d2bab..0000000 --- a/tiff/libtiff/tif_close.c +++ /dev/null @@ -1,140 +0,0 @@ -/* $Id: tif_close.c,v 1.19 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - */ -#include "tiffiop.h" -#include - -/************************************************************************/ -/* TIFFCleanup() */ -/************************************************************************/ - -/** - * Auxiliary function to free the TIFF structure. Given structure will be - * completetly freed, so you should save opened file handle and pointer - * to the close procedure in external variables before calling - * _TIFFCleanup(), if you will need these ones to close the file. - * - * @param tif A TIFF pointer. - */ - -void -TIFFCleanup(TIFF* tif) -{ - /* - * Flush buffered data and directory (if dirty). - */ - if (tif->tif_mode != O_RDONLY) - TIFFFlush(tif); - (*tif->tif_cleanup)(tif); - TIFFFreeDirectory(tif); - - if (tif->tif_dirlist) - _TIFFfree(tif->tif_dirlist); - - /* - * Clean up client info links. - */ - while( tif->tif_clientinfo ) - { - TIFFClientInfoLink *link = tif->tif_clientinfo; - - tif->tif_clientinfo = link->next; - _TIFFfree( link->name ); - _TIFFfree( link ); - } - - if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER)) - _TIFFfree(tif->tif_rawdata); - if (isMapped(tif)) - TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size); - - /* - * Clean up custom fields. - */ - if (tif->tif_fields && tif->tif_nfields > 0) { - uint32 i; - - for (i = 0; i < tif->tif_nfields; i++) { - TIFFField *fld = tif->tif_fields[i]; - if (fld->field_bit == FIELD_CUSTOM && - strncmp("Tag ", fld->field_name, 4) == 0) { - _TIFFfree(fld->field_name); - _TIFFfree(fld); - } - } - - _TIFFfree(tif->tif_fields); - } - - if (tif->tif_nfieldscompat > 0) { - uint32 i; - - for (i = 0; i < tif->tif_nfieldscompat; i++) { - if (tif->tif_fieldscompat[i].allocated_size) - _TIFFfree(tif->tif_fieldscompat[i].fields); - } - _TIFFfree(tif->tif_fieldscompat); - } - - _TIFFfree(tif); -} - -/************************************************************************/ -/* TIFFClose() */ -/************************************************************************/ - -/** - * Close a previously opened TIFF file. - * - * TIFFClose closes a file that was previously opened with TIFFOpen(). - * Any buffered data are flushed to the file, including the contents of - * the current directory (if modified); and all resources are reclaimed. - * - * @param tif A TIFF pointer. - */ - -void -TIFFClose(TIFF* tif) -{ - TIFFCloseProc closeproc = tif->tif_closeproc; - thandle_t fd = tif->tif_clientdata; - - TIFFCleanup(tif); - (void) (*closeproc)(fd); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_codec.c b/tiff/libtiff/tif_codec.c deleted file mode 100755 index 703e87d..0000000 --- a/tiff/libtiff/tif_codec.c +++ /dev/null @@ -1,166 +0,0 @@ -/* $Id: tif_codec.c,v 1.16 2013-05-02 14:44:29 tgl Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Builtin Compression Scheme Configuration Support. - */ -#include "tiffiop.h" - -static int NotConfigured(TIFF*, int); - -#ifndef LZW_SUPPORT -#define TIFFInitLZW NotConfigured -#endif -#ifndef PACKBITS_SUPPORT -#define TIFFInitPackBits NotConfigured -#endif -#ifndef THUNDER_SUPPORT -#define TIFFInitThunderScan NotConfigured -#endif -#ifndef NEXT_SUPPORT -#define TIFFInitNeXT NotConfigured -#endif -#ifndef JPEG_SUPPORT -#define TIFFInitJPEG NotConfigured -#endif -#ifndef OJPEG_SUPPORT -#define TIFFInitOJPEG NotConfigured -#endif -#ifndef CCITT_SUPPORT -#define TIFFInitCCITTRLE NotConfigured -#define TIFFInitCCITTRLEW NotConfigured -#define TIFFInitCCITTFax3 NotConfigured -#define TIFFInitCCITTFax4 NotConfigured -#endif -#ifndef JBIG_SUPPORT -#define TIFFInitJBIG NotConfigured -#endif -#ifndef ZIP_SUPPORT -#define TIFFInitZIP NotConfigured -#endif -#ifndef PIXARLOG_SUPPORT -#define TIFFInitPixarLog NotConfigured -#endif -#ifndef LOGLUV_SUPPORT -#define TIFFInitSGILog NotConfigured -#endif -#ifndef LZMA_SUPPORT -#define TIFFInitLZMA NotConfigured -#endif - -/* - * Compression schemes statically built into the library. - */ -#ifdef VMS -const TIFFCodec _TIFFBuiltinCODECS[] = { -#else -TIFFCodec _TIFFBuiltinCODECS[] = { -#endif - { "None", COMPRESSION_NONE, TIFFInitDumpMode }, - { "LZW", COMPRESSION_LZW, TIFFInitLZW }, - { "PackBits", COMPRESSION_PACKBITS, TIFFInitPackBits }, - { "ThunderScan", COMPRESSION_THUNDERSCAN,TIFFInitThunderScan }, - { "NeXT", COMPRESSION_NEXT, TIFFInitNeXT }, - { "JPEG", COMPRESSION_JPEG, TIFFInitJPEG }, - { "Old-style JPEG", COMPRESSION_OJPEG, TIFFInitOJPEG }, - { "CCITT RLE", COMPRESSION_CCITTRLE, TIFFInitCCITTRLE }, - { "CCITT RLE/W", COMPRESSION_CCITTRLEW, TIFFInitCCITTRLEW }, - { "CCITT Group 3", COMPRESSION_CCITTFAX3, TIFFInitCCITTFax3 }, - { "CCITT Group 4", COMPRESSION_CCITTFAX4, TIFFInitCCITTFax4 }, - { "ISO JBIG", COMPRESSION_JBIG, TIFFInitJBIG }, - { "Deflate", COMPRESSION_DEFLATE, TIFFInitZIP }, - { "AdobeDeflate", COMPRESSION_ADOBE_DEFLATE , TIFFInitZIP }, - { "PixarLog", COMPRESSION_PIXARLOG, TIFFInitPixarLog }, - { "SGILog", COMPRESSION_SGILOG, TIFFInitSGILog }, - { "SGILog24", COMPRESSION_SGILOG24, TIFFInitSGILog }, - { "LZMA", COMPRESSION_LZMA, TIFFInitLZMA }, - { NULL, 0, NULL } -}; - -static int -_notConfigured(TIFF* tif) -{ - const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); - char compression_code[20]; - - snprintf(compression_code, sizeof(compression_code), "%d", - tif->tif_dir.td_compression ); - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s compression support is not configured", - c ? c->name : compression_code ); - return (0); -} - -static int -NotConfigured(TIFF* tif, int scheme) -{ - (void) scheme; - - tif->tif_fixuptags = _notConfigured; - tif->tif_decodestatus = FALSE; - tif->tif_setupdecode = _notConfigured; - tif->tif_encodestatus = FALSE; - tif->tif_setupencode = _notConfigured; - return (1); -} - -/************************************************************************/ -/* TIFFIsCODECConfigured() */ -/************************************************************************/ - -/** - * Check whether we have working codec for the specific coding scheme. - * - * @return returns 1 if the codec is configured and working. Otherwise - * 0 will be returned. - */ - -int -TIFFIsCODECConfigured(uint16 scheme) -{ - const TIFFCodec* codec = TIFFFindCODEC(scheme); - - if(codec == NULL) { - return 0; - } - if(codec->init == NULL) { - return 0; - } - if(codec->init != NotConfigured){ - return 1; - } - return 0; -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_color.c b/tiff/libtiff/tif_color.c deleted file mode 100755 index be4850c..0000000 --- a/tiff/libtiff/tif_color.c +++ /dev/null @@ -1,287 +0,0 @@ -/* $Id: tif_color.c,v 1.19 2010-12-14 02:22:42 faxguy Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * CIE L*a*b* to CIE XYZ and CIE XYZ to RGB conversion routines are taken - * from the VIPS library (http://www.vips.ecs.soton.ac.uk) with - * the permission of John Cupitt, the VIPS author. - */ - -/* - * TIFF Library. - * - * Color space conversion routines. - */ - -#include "tiffiop.h" -#include - -/* - * Convert color value from the CIE L*a*b* 1976 space to CIE XYZ. - */ -void -TIFFCIELabToXYZ(TIFFCIELabToRGB *cielab, uint32 l, int32 a, int32 b, - float *X, float *Y, float *Z) -{ - float L = (float)l * 100.0F / 255.0F; - float cby, tmp; - - if( L < 8.856F ) { - *Y = (L * cielab->Y0) / 903.292F; - cby = 7.787F * (*Y / cielab->Y0) + 16.0F / 116.0F; - } else { - cby = (L + 16.0F) / 116.0F; - *Y = cielab->Y0 * cby * cby * cby; - } - - tmp = (float)a / 500.0F + cby; - if( tmp < 0.2069F ) - *X = cielab->X0 * (tmp - 0.13793F) / 7.787F; - else - *X = cielab->X0 * tmp * tmp * tmp; - - tmp = cby - (float)b / 200.0F; - if( tmp < 0.2069F ) - *Z = cielab->Z0 * (tmp - 0.13793F) / 7.787F; - else - *Z = cielab->Z0 * tmp * tmp * tmp; -} - -#define RINT(R) ((uint32)((R)>0?((R)+0.5):((R)-0.5))) -/* - * Convert color value from the XYZ space to RGB. - */ -void -TIFFXYZToRGB(TIFFCIELabToRGB *cielab, float X, float Y, float Z, - uint32 *r, uint32 *g, uint32 *b) -{ - int i; - float Yr, Yg, Yb; - float *matrix = &cielab->display.d_mat[0][0]; - - /* Multiply through the matrix to get luminosity values. */ - Yr = matrix[0] * X + matrix[1] * Y + matrix[2] * Z; - Yg = matrix[3] * X + matrix[4] * Y + matrix[5] * Z; - Yb = matrix[6] * X + matrix[7] * Y + matrix[8] * Z; - - /* Clip input */ - Yr = TIFFmax(Yr, cielab->display.d_Y0R); - Yg = TIFFmax(Yg, cielab->display.d_Y0G); - Yb = TIFFmax(Yb, cielab->display.d_Y0B); - - /* Avoid overflow in case of wrong input values */ - Yr = TIFFmin(Yr, cielab->display.d_YCR); - Yg = TIFFmin(Yg, cielab->display.d_YCG); - Yb = TIFFmin(Yb, cielab->display.d_YCB); - - /* Turn luminosity to colour value. */ - i = (int)((Yr - cielab->display.d_Y0R) / cielab->rstep); - i = TIFFmin(cielab->range, i); - *r = RINT(cielab->Yr2r[i]); - - i = (int)((Yg - cielab->display.d_Y0G) / cielab->gstep); - i = TIFFmin(cielab->range, i); - *g = RINT(cielab->Yg2g[i]); - - i = (int)((Yb - cielab->display.d_Y0B) / cielab->bstep); - i = TIFFmin(cielab->range, i); - *b = RINT(cielab->Yb2b[i]); - - /* Clip output. */ - *r = TIFFmin(*r, cielab->display.d_Vrwr); - *g = TIFFmin(*g, cielab->display.d_Vrwg); - *b = TIFFmin(*b, cielab->display.d_Vrwb); -} -#undef RINT - -/* - * Allocate conversion state structures and make look_up tables for - * the Yr,Yb,Yg <=> r,g,b conversions. - */ -int -TIFFCIELabToRGBInit(TIFFCIELabToRGB* cielab, - const TIFFDisplay *display, float *refWhite) -{ - int i; - double gamma; - - cielab->range = CIELABTORGB_TABLE_RANGE; - - _TIFFmemcpy(&cielab->display, display, sizeof(TIFFDisplay)); - - /* Red */ - gamma = 1.0 / cielab->display.d_gammaR ; - cielab->rstep = - (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; - for(i = 0; i <= cielab->range; i++) { - cielab->Yr2r[i] = cielab->display.d_Vrwr - * ((float)pow((double)i / cielab->range, gamma)); - } - - /* Green */ - gamma = 1.0 / cielab->display.d_gammaG ; - cielab->gstep = - (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; - for(i = 0; i <= cielab->range; i++) { - cielab->Yg2g[i] = cielab->display.d_Vrwg - * ((float)pow((double)i / cielab->range, gamma)); - } - - /* Blue */ - gamma = 1.0 / cielab->display.d_gammaB ; - cielab->bstep = - (cielab->display.d_YCR - cielab->display.d_Y0R) / cielab->range; - for(i = 0; i <= cielab->range; i++) { - cielab->Yb2b[i] = cielab->display.d_Vrwb - * ((float)pow((double)i / cielab->range, gamma)); - } - - /* Init reference white point */ - cielab->X0 = refWhite[0]; - cielab->Y0 = refWhite[1]; - cielab->Z0 = refWhite[2]; - - return 0; -} - -/* - * Convert color value from the YCbCr space to CIE XYZ. - * The colorspace conversion algorithm comes from the IJG v5a code; - * see below for more information on how it works. - */ -#define SHIFT 16 -#define FIX(x) ((int32)((x) * (1L<(max)?(max):(f)) -#define HICLAMP(f,max) ((f)>(max)?(max):(f)) - -void -TIFFYCbCrtoRGB(TIFFYCbCrToRGB *ycbcr, uint32 Y, int32 Cb, int32 Cr, - uint32 *r, uint32 *g, uint32 *b) -{ - int32 i; - - /* XXX: Only 8-bit YCbCr input supported for now */ - Y = HICLAMP(Y, 255), Cb = CLAMP(Cb, 0, 255), Cr = CLAMP(Cr, 0, 255); - - i = ycbcr->Y_tab[Y] + ycbcr->Cr_r_tab[Cr]; - *r = CLAMP(i, 0, 255); - i = ycbcr->Y_tab[Y] - + (int)((ycbcr->Cb_g_tab[Cb] + ycbcr->Cr_g_tab[Cr]) >> SHIFT); - *g = CLAMP(i, 0, 255); - i = ycbcr->Y_tab[Y] + ycbcr->Cb_b_tab[Cb]; - *b = CLAMP(i, 0, 255); -} - -/* - * Initialize the YCbCr->RGB conversion tables. The conversion - * is done according to the 6.0 spec: - * - * R = Y + Cr*(2 - 2*LumaRed) - * B = Y + Cb*(2 - 2*LumaBlue) - * G = Y - * - LumaBlue*Cb*(2-2*LumaBlue)/LumaGreen - * - LumaRed*Cr*(2-2*LumaRed)/LumaGreen - * - * To avoid floating point arithmetic the fractional constants that - * come out of the equations are represented as fixed point values - * in the range 0...2^16. We also eliminate multiplications by - * pre-calculating possible values indexed by Cb and Cr (this code - * assumes conversion is being done for 8-bit samples). - */ -int -TIFFYCbCrToRGBInit(TIFFYCbCrToRGB* ycbcr, float *luma, float *refBlackWhite) -{ - TIFFRGBValue* clamptab; - int i; - -#define LumaRed luma[0] -#define LumaGreen luma[1] -#define LumaBlue luma[2] - - clamptab = (TIFFRGBValue*)( - (uint8*) ycbcr+TIFFroundup_32(sizeof (TIFFYCbCrToRGB), sizeof (long))); - _TIFFmemset(clamptab, 0, 256); /* v < 0 => 0 */ - ycbcr->clamptab = (clamptab += 256); - for (i = 0; i < 256; i++) - clamptab[i] = (TIFFRGBValue) i; - _TIFFmemset(clamptab+256, 255, 2*256); /* v > 255 => 255 */ - ycbcr->Cr_r_tab = (int*) (clamptab + 3*256); - ycbcr->Cb_b_tab = ycbcr->Cr_r_tab + 256; - ycbcr->Cr_g_tab = (int32*) (ycbcr->Cb_b_tab + 256); - ycbcr->Cb_g_tab = ycbcr->Cr_g_tab + 256; - ycbcr->Y_tab = ycbcr->Cb_g_tab + 256; - - { float f1 = 2-2*LumaRed; int32 D1 = FIX(f1); - float f2 = LumaRed*f1/LumaGreen; int32 D2 = -FIX(f2); - float f3 = 2-2*LumaBlue; int32 D3 = FIX(f3); - float f4 = LumaBlue*f3/LumaGreen; int32 D4 = -FIX(f4); - int x; - -#undef LumaBlue -#undef LumaGreen -#undef LumaRed - - /* - * i is the actual input pixel value in the range 0..255 - * Cb and Cr values are in the range -128..127 (actually - * they are in a range defined by the ReferenceBlackWhite - * tag) so there is some range shifting to do here when - * constructing tables indexed by the raw pixel data. - */ - for (i = 0, x = -128; i < 256; i++, x++) { - int32 Cr = (int32)Code2V(x, refBlackWhite[4] - 128.0F, - refBlackWhite[5] - 128.0F, 127); - int32 Cb = (int32)Code2V(x, refBlackWhite[2] - 128.0F, - refBlackWhite[3] - 128.0F, 127); - - ycbcr->Cr_r_tab[i] = (int32)((D1*Cr + ONE_HALF)>>SHIFT); - ycbcr->Cb_b_tab[i] = (int32)((D3*Cb + ONE_HALF)>>SHIFT); - ycbcr->Cr_g_tab[i] = D2*Cr; - ycbcr->Cb_g_tab[i] = D4*Cb + ONE_HALF; - ycbcr->Y_tab[i] = - (int32)Code2V(x + 128, refBlackWhite[0], refBlackWhite[1], 255); - } - } - - return 0; -} -#undef HICLAMP -#undef CLAMP -#undef Code2V -#undef SHIFT -#undef ONE_HALF -#undef FIX - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_compress.c b/tiff/libtiff/tif_compress.c deleted file mode 100755 index 20e72fd..0000000 --- a/tiff/libtiff/tif_compress.c +++ /dev/null @@ -1,304 +0,0 @@ -/* $Id: tif_compress.c,v 1.22 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Compression Scheme Configuration Support. - */ -#include "tiffiop.h" - -static int -TIFFNoEncode(TIFF* tif, const char* method) -{ - const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); - - if (c) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s %s encoding is not implemented", - c->name, method); - } else { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression scheme %u %s encoding is not implemented", - tif->tif_dir.td_compression, method); - } - return (-1); -} - -int -_TIFFNoRowEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoEncode(tif, "scanline")); -} - -int -_TIFFNoStripEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoEncode(tif, "strip")); -} - -int -_TIFFNoTileEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoEncode(tif, "tile")); -} - -static int -TIFFNoDecode(TIFF* tif, const char* method) -{ - const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression); - - if (c) - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%s %s decoding is not implemented", - c->name, method); - else - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression scheme %u %s decoding is not implemented", - tif->tif_dir.td_compression, method); - return (-1); -} - -int -_TIFFNoFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -int -_TIFFNoRowDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoDecode(tif, "scanline")); -} - -int -_TIFFNoStripDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoDecode(tif, "strip")); -} - -int -_TIFFNoTileDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) pp; (void) cc; (void) s; - return (TIFFNoDecode(tif, "tile")); -} - -int -_TIFFNoSeek(TIFF* tif, uint32 off) -{ - (void) off; - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Compression algorithm does not support random access"); - return (0); -} - -int -_TIFFNoPreCode(TIFF* tif, uint16 s) -{ - (void) tif; (void) s; - return (1); -} - -static int _TIFFtrue(TIFF* tif) { (void) tif; return (1); } -static void _TIFFvoid(TIFF* tif) { (void) tif; } - -void -_TIFFSetDefaultCompressionState(TIFF* tif) -{ - tif->tif_fixuptags = _TIFFNoFixupTags; - tif->tif_decodestatus = TRUE; - tif->tif_setupdecode = _TIFFtrue; - tif->tif_predecode = _TIFFNoPreCode; - tif->tif_decoderow = _TIFFNoRowDecode; - tif->tif_decodestrip = _TIFFNoStripDecode; - tif->tif_decodetile = _TIFFNoTileDecode; - tif->tif_encodestatus = TRUE; - tif->tif_setupencode = _TIFFtrue; - tif->tif_preencode = _TIFFNoPreCode; - tif->tif_postencode = _TIFFtrue; - tif->tif_encoderow = _TIFFNoRowEncode; - tif->tif_encodestrip = _TIFFNoStripEncode; - tif->tif_encodetile = _TIFFNoTileEncode; - tif->tif_close = _TIFFvoid; - tif->tif_seek = _TIFFNoSeek; - tif->tif_cleanup = _TIFFvoid; - tif->tif_defstripsize = _TIFFDefaultStripSize; - tif->tif_deftilesize = _TIFFDefaultTileSize; - tif->tif_flags &= ~(TIFF_NOBITREV|TIFF_NOREADRAW); -} - -int -TIFFSetCompressionScheme(TIFF* tif, int scheme) -{ - const TIFFCodec *c = TIFFFindCODEC((uint16) scheme); - - _TIFFSetDefaultCompressionState(tif); - /* - * Don't treat an unknown compression scheme as an error. - * This permits applications to open files with data that - * the library does not have builtin support for, but which - * may still be meaningful. - */ - return (c ? (*c->init)(tif, scheme) : 1); -} - -/* - * Other compression schemes may be registered. Registered - * schemes can also override the builtin versions provided - * by this library. - */ -typedef struct _codec { - struct _codec* next; - TIFFCodec* info; -} codec_t; -static codec_t* registeredCODECS = NULL; - -const TIFFCodec* -TIFFFindCODEC(uint16 scheme) -{ - const TIFFCodec* c; - codec_t* cd; - - for (cd = registeredCODECS; cd; cd = cd->next) - if (cd->info->scheme == scheme) - return ((const TIFFCodec*) cd->info); - for (c = _TIFFBuiltinCODECS; c->name; c++) - if (c->scheme == scheme) - return (c); - return ((const TIFFCodec*) 0); -} - -TIFFCodec* -TIFFRegisterCODEC(uint16 scheme, const char* name, TIFFInitMethod init) -{ - codec_t* cd = (codec_t*) - _TIFFmalloc((tmsize_t)(sizeof (codec_t) + sizeof (TIFFCodec) + strlen(name)+1)); - - if (cd != NULL) { - cd->info = (TIFFCodec*) ((uint8*) cd + sizeof (codec_t)); - cd->info->name = (char*) - ((uint8*) cd->info + sizeof (TIFFCodec)); - strcpy(cd->info->name, name); - cd->info->scheme = scheme; - cd->info->init = init; - cd->next = registeredCODECS; - registeredCODECS = cd; - } else { - TIFFErrorExt(0, "TIFFRegisterCODEC", - "No space to register compression scheme %s", name); - return NULL; - } - return (cd->info); -} - -void -TIFFUnRegisterCODEC(TIFFCodec* c) -{ - codec_t* cd; - codec_t** pcd; - - for (pcd = ®isteredCODECS; (cd = *pcd); pcd = &cd->next) - if (cd->info == c) { - *pcd = cd->next; - _TIFFfree(cd); - return; - } - TIFFErrorExt(0, "TIFFUnRegisterCODEC", - "Cannot remove compression scheme %s; not registered", c->name); -} - -/************************************************************************/ -/* TIFFGetConfisuredCODECs() */ -/************************************************************************/ - -/** - * Get list of configured codecs, both built-in and registered by user. - * Caller is responsible to free this structure. - * - * @return returns array of TIFFCodec records (the last record should be NULL) - * or NULL if function failed. - */ - -TIFFCodec* -TIFFGetConfiguredCODECs() -{ - int i = 1; - codec_t *cd; - const TIFFCodec* c; - TIFFCodec* codecs = NULL; - TIFFCodec* new_codecs; - - for (cd = registeredCODECS; cd; cd = cd->next) { - new_codecs = (TIFFCodec *) - _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); - if (!new_codecs) { - _TIFFfree (codecs); - return NULL; - } - codecs = new_codecs; - _TIFFmemcpy(codecs + i - 1, cd, sizeof(TIFFCodec)); - i++; - } - for (c = _TIFFBuiltinCODECS; c->name; c++) { - if (TIFFIsCODECConfigured(c->scheme)) { - new_codecs = (TIFFCodec *) - _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); - if (!new_codecs) { - _TIFFfree (codecs); - return NULL; - } - codecs = new_codecs; - _TIFFmemcpy(codecs + i - 1, (const void*)c, sizeof(TIFFCodec)); - i++; - } - } - - new_codecs = (TIFFCodec *) _TIFFrealloc(codecs, i * sizeof(TIFFCodec)); - if (!new_codecs) { - _TIFFfree (codecs); - return NULL; - } - codecs = new_codecs; - _TIFFmemset(codecs + i - 1, 0, sizeof(TIFFCodec)); - - return codecs; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_config.h-vms b/tiff/libtiff/tif_config.h-vms deleted file mode 100755 index d653bd8..0000000 --- a/tiff/libtiff/tif_config.h-vms +++ /dev/null @@ -1,46 +0,0 @@ -/* Define to 1 if you have the header file. */ -#define HAVE_ASSERT_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_FCNTL_H 1 - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#define HAVE_IEEEFP 1 - -#define HAVE_UNISTD_H 1 - -#define HAVE_STRING_H 1 -/* Define to 1 if you have the header file. */ -#define HAVE_SYS_TYPES_H 1 - -/* Define to 1 if you have the header file. */ -//#define HAVE_IO_H 1 - -/* Define to 1 if you have the header file. */ -//#define HAVE_SEARCH_H 1 - -/* The size of a `int', as computed by sizeof. */ -#define SIZEOF_INT 4 - -/* The size of a `long', as computed by sizeof. */ -#define SIZEOF_LONG 4 - -/* Set the native cpu bit order */ -#define HOST_FILLORDER FILLORDER_LSB2MSB - -/* Define to 1 if your processor stores words with the most significant byte - first (like Motorola and SPARC, unlike Intel and VAX). */ -/* #undef WORDS_BIGENDIAN */ - -/* Define to `__inline__' or `__inline' if that's what the C compiler - calls it, or to nothing if 'inline' is not supported under any name. */ -/* -#ifndef __cplusplus -# ifndef inline -# define inline __inline -# endif -#endif -*/ - -// #define lfind _lfind diff --git a/tiff/libtiff/tif_config.h.in b/tiff/libtiff/tif_config.h.in deleted file mode 100755 index 367b1d0..0000000 --- a/tiff/libtiff/tif_config.h.in +++ /dev/null @@ -1,388 +0,0 @@ -/* libtiff/tif_config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if building universal (internal helper macro) */ -#undef AC_APPLE_UNIVERSAL_BUILD - -/* Support CCITT Group 3 & 4 algorithms */ -#undef CCITT_SUPPORT - -/* Pick up YCbCr subsampling info from the JPEG data stream to support files - lacking the tag (default enabled). */ -#undef CHECK_JPEG_YCBCR_SUBSAMPLING - -/* enable partial strip reading for large strips (experimental) */ -#undef CHUNKY_STRIP_READ_SUPPORT - -/* Support C++ stream API (requires C++ compiler) */ -#undef CXX_SUPPORT - -/* Treat extra sample as alpha (default enabled). The RGBA interface will - treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many - packages produce RGBA files but don't mark the alpha properly. */ -#undef DEFAULT_EXTRASAMPLE_AS_ALPHA - -/* enable deferred strip/tile offset/size loading (experimental) */ -#undef DEFER_STRILE_LOAD - -/* Define to 1 if you have the header file. */ -#undef HAVE_ASSERT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_DLFCN_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_FCNTL_H - -/* Define to 1 if you have the `floor' function. */ -#undef HAVE_FLOOR - -/* Define to 1 if you have the `getopt' function. */ -#undef HAVE_GETOPT - -/* Define to 1 if you have the header file. */ -#undef HAVE_GLUT_GLUT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GL_GLUT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GL_GLU_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GL_GL_H - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#undef HAVE_IEEEFP - -/* Define to 1 if the system has the type `int16'. */ -#undef HAVE_INT16 - -/* Define to 1 if the system has the type `int32'. */ -#undef HAVE_INT32 - -/* Define to 1 if the system has the type `int8'. */ -#undef HAVE_INT8 - -/* Define to 1 if you have the header file. */ -#undef HAVE_INTTYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_IO_H - -/* Define to 1 if you have the `isascii' function. */ -#undef HAVE_ISASCII - -/* Define to 1 if you have the `jbg_newlen' function. */ -#undef HAVE_JBG_NEWLEN - -/* Define to 1 if you have the `lfind' function. */ -#undef HAVE_LFIND - -/* Define to 1 if you have the header file. */ -#undef HAVE_LIMITS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_MALLOC_H - -/* Define to 1 if you have the `memmove' function. */ -#undef HAVE_MEMMOVE - -/* Define to 1 if you have the header file. */ -#undef HAVE_MEMORY_H - -/* Define to 1 if you have the `memset' function. */ -#undef HAVE_MEMSET - -/* Define to 1 if you have the `mmap' function. */ -#undef HAVE_MMAP - -/* Define to 1 if you have the header file. */ -#undef HAVE_OPENGL_GLU_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_OPENGL_GL_H - -/* Define to 1 if you have the `pow' function. */ -#undef HAVE_POW - -/* Define if you have POSIX threads libraries and header files. */ -#undef HAVE_PTHREAD - -/* Define to 1 if you have the header file. */ -#undef HAVE_SEARCH_H - -/* Define to 1 if you have the `setmode' function. */ -#undef HAVE_SETMODE - -/* Define to 1 if you have the `sqrt' function. */ -#undef HAVE_SQRT - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the `strcasecmp' function. */ -#undef HAVE_STRCASECMP - -/* Define to 1 if you have the `strchr' function. */ -#undef HAVE_STRCHR - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the `strrchr' function. */ -#undef HAVE_STRRCHR - -/* Define to 1 if you have the `strstr' function. */ -#undef HAVE_STRSTR - -/* Define to 1 if you have the `strtol' function. */ -#undef HAVE_STRTOL - -/* Define to 1 if you have the `strtoul' function. */ -#undef HAVE_STRTOUL - -/* Define to 1 if you have the `strtoull' function. */ -#undef HAVE_STRTOULL - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TIME_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_UNISTD_H - -/* Use nonstandard varargs form for the GLU tesselator callback */ -#undef HAVE_VARARGS_GLU_TESSCB - -/* Define to 1 if you have the header file. */ -#undef HAVE_WINDOWS_H - -/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian - (Intel) */ -#undef HOST_BIGENDIAN - -/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ -#undef HOST_FILLORDER - -/* Support ISO JBIG compression (requires JBIG-KIT library) */ -#undef JBIG_SUPPORT - -/* 8/12 bit libjpeg dual mode enabled */ -#undef JPEG_DUAL_MODE_8_12 - -/* Support JPEG compression (requires IJG JPEG library) */ -#undef JPEG_SUPPORT - -/* 12bit libjpeg primary include file with path */ -#undef LIBJPEG_12_PATH - -/* Support LogLuv high dynamic range encoding */ -#undef LOGLUV_SUPPORT - -/* Define to the sub-directory where libtool stores uninstalled libraries. */ -#undef LT_OBJDIR - -/* Support LZMA2 compression */ -#undef LZMA_SUPPORT - -/* Support LZW algorithm */ -#undef LZW_SUPPORT - -/* Support Microsoft Document Imaging format */ -#undef MDI_SUPPORT - -/* Support NeXT 2-bit RLE algorithm */ -#undef NEXT_SUPPORT - -/* Support Old JPEG compresson (read-only) */ -#undef OJPEG_SUPPORT - -/* Name of package */ -#undef PACKAGE - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the home page for this package. */ -#undef PACKAGE_URL - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* Support Macintosh PackBits algorithm */ -#undef PACKBITS_SUPPORT - -/* Support Pixar log-format algorithm (requires Zlib) */ -#undef PIXARLOG_SUPPORT - -/* Define to necessary symbol if this constant uses a non-standard name on - your system. */ -#undef PTHREAD_CREATE_JOINABLE - -/* The size of `signed int', as computed by sizeof. */ -#undef SIZEOF_SIGNED_INT - -/* The size of `signed long', as computed by sizeof. */ -#undef SIZEOF_SIGNED_LONG - -/* The size of `signed long long', as computed by sizeof. */ -#undef SIZEOF_SIGNED_LONG_LONG - -/* The size of `signed short', as computed by sizeof. */ -#undef SIZEOF_SIGNED_SHORT - -/* The size of `unsigned char *', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_CHAR_P - -/* The size of `unsigned int', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_INT - -/* The size of `unsigned long', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_LONG - -/* The size of `unsigned long long', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_LONG_LONG - -/* The size of `unsigned short', as computed by sizeof. */ -#undef SIZEOF_UNSIGNED_SHORT - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Support strip chopping (whether or not to convert single-strip uncompressed - images to mutiple strips of specified size to reduce memory usage) */ -#undef STRIPCHOP_DEFAULT - -/* Default size of the strip in bytes (when strip chopping enabled) */ -#undef STRIP_SIZE_DEFAULT - -/* Enable SubIFD tag (330) support */ -#undef SUBIFD_SUPPORT - -/* Support ThunderScan 4-bit RLE algorithm */ -#undef THUNDER_SUPPORT - -/* Signed 16-bit type */ -#undef TIFF_INT16_T - -/* Signed 32-bit type formatter */ -#undef TIFF_INT32_FORMAT - -/* Signed 32-bit type */ -#undef TIFF_INT32_T - -/* Signed 64-bit type formatter */ -#undef TIFF_INT64_FORMAT - -/* Signed 64-bit type */ -#undef TIFF_INT64_T - -/* Signed 8-bit type */ -#undef TIFF_INT8_T - -/* Pointer difference type formatter */ -#undef TIFF_PTRDIFF_FORMAT - -/* Pointer difference type */ -#undef TIFF_PTRDIFF_T - -/* Signed size type formatter */ -#undef TIFF_SSIZE_FORMAT - -/* Signed size type */ -#undef TIFF_SSIZE_T - -/* Unsigned 16-bit type */ -#undef TIFF_UINT16_T - -/* Unsigned 32-bit type formatter */ -#undef TIFF_UINT32_FORMAT - -/* Unsigned 32-bit type */ -#undef TIFF_UINT32_T - -/* Unsigned 64-bit type formatter */ -#undef TIFF_UINT64_FORMAT - -/* Unsigned 64-bit type */ -#undef TIFF_UINT64_T - -/* Unsigned 8-bit type */ -#undef TIFF_UINT8_T - -/* Define to 1 if you can safely include both and . */ -#undef TIME_WITH_SYS_TIME - -/* Define to 1 if your declares `struct tm'. */ -#undef TM_IN_SYS_TIME - -/* define to use win32 IO system */ -#undef USE_WIN32_FILEIO - -/* Version number of package */ -#undef VERSION - -/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most - significant byte first (like Motorola and SPARC, unlike Intel). */ -#if defined AC_APPLE_UNIVERSAL_BUILD -# if defined __BIG_ENDIAN__ -# define WORDS_BIGENDIAN 1 -# endif -#else -# ifndef WORDS_BIGENDIAN -# undef WORDS_BIGENDIAN -# endif -#endif - -/* Define to 1 if the X Window System is missing or not being used. */ -#undef X_DISPLAY_MISSING - -/* Support Deflate compression */ -#undef ZIP_SUPPORT - -/* Enable large inode numbers on Mac OS X 10.5. */ -#ifndef _DARWIN_USE_64_BIT_INODE -# define _DARWIN_USE_64_BIT_INODE 1 -#endif - -/* Number of bits in a file offset, on hosts where this is settable. */ -#undef _FILE_OFFSET_BITS - -/* Define for large files, on AIX-style hosts. */ -#undef _LARGE_FILES - -/* Define to empty if `const' does not conform to ANSI C. */ -#undef const - -/* Define to `__inline__' or `__inline' if that's what the C compiler - calls it, or to nothing if 'inline' is not supported under any name. */ -#ifndef __cplusplus -#undef inline -#endif - -/* Define to `long int' if does not define. */ -#undef off_t - -/* Define to `unsigned int' if does not define. */ -#undef size_t diff --git a/tiff/libtiff/tif_config.vc.h b/tiff/libtiff/tif_config.vc.h deleted file mode 100755 index e533e75..0000000 --- a/tiff/libtiff/tif_config.vc.h +++ /dev/null @@ -1,73 +0,0 @@ - -/* We're using win32 file i/o because it works */ -#define USE_WIN32_FILEIO - -/* Don't pop an error window */ -#define TIF_PLATFORM_CONSOLE - -/* Define to 1 if you have the header file. */ -#define HAVE_ASSERT_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_FCNTL_H 1 - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#define HAVE_IEEEFP 1 - -/* Define to 1 if you have the `jbg_newlen' function. */ -#define HAVE_JBG_NEWLEN 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STRING_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_SYS_TYPES_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_IO_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_SEARCH_H 1 - -/* Define to 1 if you have the `setmode' function. */ -#define HAVE_SETMODE 1 - -/* The size of a `int', as computed by sizeof. */ -#define SIZEOF_INT 4 - -/* The size of a `long', as computed by sizeof. */ -#define SIZEOF_LONG 4 - -/* Set the native cpu bit order */ -#define HOST_FILLORDER FILLORDER_LSB2MSB - -/* Visual Studio 2015 / VC 14 / MSVC 19.00 finally has snprintf() */ -#if defined(_MSC_VER) && _MSC_VER < 1900 -#define snprintf _snprintf -#endif - -#ifndef INVALID_SET_FILE_POINTER -# define INVALID_SET_FILE_POINTER ((DWORD)-1) -#endif - -/* Define to 1 if your processor stores words with the most significant byte - first (like Motorola and SPARC, unlike Intel and VAX). */ -/* #undef WORDS_BIGENDIAN */ - -/* Define to `__inline__' or `__inline' if that's what the C compiler - calls it, or to nothing if 'inline' is not supported under any name. */ -#ifndef __cplusplus -# ifndef inline -# define inline __inline -# endif -#endif - -#define lfind _lfind -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_config.wince.h b/tiff/libtiff/tif_config.wince.h deleted file mode 100755 index 94e92bb..0000000 --- a/tiff/libtiff/tif_config.wince.h +++ /dev/null @@ -1,71 +0,0 @@ -/* $Id: tif_config.wince.h,v 1.3 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * TIFF library configuration header for Windows CE platform. - */ -#ifndef _WIN32_WCE -# error This version of tif_config.h header is dedicated for Windows CE platform! -#endif - -/* Define to 1 if you have the header file. */ -#define HAVE_ASSERT_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_FCNTL_H 1 - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#define HAVE_IEEEFP 1 - -/* Define to 1 if you have the `jbg_newlen' function. */ -#define HAVE_JBG_NEWLEN 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_STRING_H 1 - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the header file. */ -#define HAVE_IO_H 1 - -/* Define to 1 if you have the header file. */ -#define HAVE_SEARCH_H 1 - -/* Define to 1 if you have the `setmode' function. */ -#define HAVE_SETMODE 1 - -/* Define to 1 if you have the `bsearch' function. */ -#define HAVE_BSEARCH 1 -#define bsearch wceex_bsearch - -/* Define to 1 if you have the `lfind' function. */ -#define HAVE_LFIND 1 -#define lfind wceex_lfind - -/* The size of a `int', as computed by sizeof. */ -#define SIZEOF_INT 4 - -/* Set the native cpu bit order */ -#define HOST_FILLORDER FILLORDER_LSB2MSB - -/* Define to 1 if your processor stores words with the most significant byte - first (like Motorola and SPARC, unlike Intel and VAX). */ -/* #undef WORDS_BIGENDIAN */ - -/* Define to `__inline__' or `__inline' if that's what the C compiler - calls it, or to nothing if 'inline' is not supported under any name. */ -#ifndef __cplusplus -# ifndef inline -# define inline __inline -# endif -#endif - - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dir.c b/tiff/libtiff/tif_dir.c deleted file mode 100755 index 17bf878..0000000 --- a/tiff/libtiff/tif_dir.c +++ /dev/null @@ -1,1700 +0,0 @@ -/* $Id: tif_dir.c,v 1.119 2014-12-27 15:20:42 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Directory Tag Get & Set Routines. - * (and also some miscellaneous stuff) - */ -#include "tiffiop.h" - -/* - * These are used in the backwards compatibility code... - */ -#define DATATYPE_VOID 0 /* !untyped data */ -#define DATATYPE_INT 1 /* !signed integer data */ -#define DATATYPE_UINT 2 /* !unsigned integer data */ -#define DATATYPE_IEEEFP 3 /* !IEEE floating point data */ - -static void -setByteArray(void** vpp, void* vp, size_t nmemb, size_t elem_size) -{ - if (*vpp) - _TIFFfree(*vpp), *vpp = 0; - if (vp) { - tmsize_t bytes = (tmsize_t)(nmemb * elem_size); - if (elem_size && bytes / elem_size == nmemb) - *vpp = (void*) _TIFFmalloc(bytes); - if (*vpp) - _TIFFmemcpy(*vpp, vp, bytes); - } -} -void _TIFFsetByteArray(void** vpp, void* vp, uint32 n) - { setByteArray(vpp, vp, n, 1); } -void _TIFFsetString(char** cpp, char* cp) - { setByteArray((void**) cpp, (void*) cp, strlen(cp)+1, 1); } -void _TIFFsetNString(char** cpp, char* cp, uint32 n) - { setByteArray((void**) cpp, (void*) cp, n, 1); } -void _TIFFsetShortArray(uint16** wpp, uint16* wp, uint32 n) - { setByteArray((void**) wpp, (void*) wp, n, sizeof (uint16)); } -void _TIFFsetLongArray(uint32** lpp, uint32* lp, uint32 n) - { setByteArray((void**) lpp, (void*) lp, n, sizeof (uint32)); } -void _TIFFsetLong8Array(uint64** lpp, uint64* lp, uint32 n) - { setByteArray((void**) lpp, (void*) lp, n, sizeof (uint64)); } -void _TIFFsetFloatArray(float** fpp, float* fp, uint32 n) - { setByteArray((void**) fpp, (void*) fp, n, sizeof (float)); } -void _TIFFsetDoubleArray(double** dpp, double* dp, uint32 n) - { setByteArray((void**) dpp, (void*) dp, n, sizeof (double)); } - -static void -setDoubleArrayOneValue(double** vpp, double value, size_t nmemb) -{ - if (*vpp) - _TIFFfree(*vpp); - *vpp = _TIFFmalloc(nmemb*sizeof(double)); - if (*vpp) - { - while (nmemb--) - ((double*)*vpp)[nmemb] = value; - } -} - -/* - * Install extra samples information. - */ -static int -setExtraSamples(TIFFDirectory* td, va_list ap, uint32* v) -{ -/* XXX: Unassociated alpha data == 999 is a known Corel Draw bug, see below */ -#define EXTRASAMPLE_COREL_UNASSALPHA 999 - - uint16* va; - uint32 i; - - *v = (uint16) va_arg(ap, uint16_vap); - if ((uint16) *v > td->td_samplesperpixel) - return 0; - va = va_arg(ap, uint16*); - if (*v > 0 && va == NULL) /* typically missing param */ - return 0; - for (i = 0; i < *v; i++) { - if (va[i] > EXTRASAMPLE_UNASSALPHA) { - /* - * XXX: Corel Draw is known to produce incorrect - * ExtraSamples tags which must be patched here if we - * want to be able to open some of the damaged TIFF - * files: - */ - if (va[i] == EXTRASAMPLE_COREL_UNASSALPHA) - va[i] = EXTRASAMPLE_UNASSALPHA; - else - return 0; - } - } - td->td_extrasamples = (uint16) *v; - _TIFFsetShortArray(&td->td_sampleinfo, va, td->td_extrasamples); - return 1; - -#undef EXTRASAMPLE_COREL_UNASSALPHA -} - -/* - * Confirm we have "samplesperpixel" ink names separated by \0. Returns - * zero if the ink names are not as expected. - */ -static uint32 -checkInkNamesString(TIFF* tif, uint32 slen, const char* s) -{ - TIFFDirectory* td = &tif->tif_dir; - uint16 i = td->td_samplesperpixel; - - if (slen > 0) { - const char* ep = s+slen; - const char* cp = s; - for (; i > 0; i--) { - for (; cp < ep && *cp != '\0'; cp++) {} - if (cp >= ep) - goto bad; - cp++; /* skip \0 */ - } - return ((uint32)(cp-s)); - } -bad: - TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", - "%s: Invalid InkNames value; expecting %d names, found %d", - tif->tif_name, - td->td_samplesperpixel, - td->td_samplesperpixel-i); - return (0); -} - -static int -_TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[] = "_TIFFVSetField"; - - TIFFDirectory* td = &tif->tif_dir; - int status = 1; - uint32 v32, i, v; - double dblval; - char* s; - const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY); - uint32 standard_tag = tag; - if( fip == NULL ) /* cannot happen since OkToChangeTag() already checks it */ - return 0; - /* - * We want to force the custom code to be used for custom - * fields even if the tag happens to match a well known - * one - important for reinterpreted handling of standard - * tag values in custom directories (ie. EXIF) - */ - if (fip->field_bit == FIELD_CUSTOM) { - standard_tag = 0; - } - - switch (standard_tag) { - case TIFFTAG_SUBFILETYPE: - td->td_subfiletype = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_IMAGEWIDTH: - td->td_imagewidth = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_IMAGELENGTH: - td->td_imagelength = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_BITSPERSAMPLE: - td->td_bitspersample = (uint16) va_arg(ap, uint16_vap); - /* - * If the data require post-decoding processing to byte-swap - * samples, set it up here. Note that since tags are required - * to be ordered, compression code can override this behaviour - * in the setup method if it wants to roll the post decoding - * work in with its normal work. - */ - if (tif->tif_flags & TIFF_SWAB) { - if (td->td_bitspersample == 8) - tif->tif_postdecode = _TIFFNoPostDecode; - else if (td->td_bitspersample == 16) - tif->tif_postdecode = _TIFFSwab16BitData; - else if (td->td_bitspersample == 24) - tif->tif_postdecode = _TIFFSwab24BitData; - else if (td->td_bitspersample == 32) - tif->tif_postdecode = _TIFFSwab32BitData; - else if (td->td_bitspersample == 64) - tif->tif_postdecode = _TIFFSwab64BitData; - else if (td->td_bitspersample == 128) /* two 64's */ - tif->tif_postdecode = _TIFFSwab64BitData; - } - break; - case TIFFTAG_COMPRESSION: - v = (uint16) va_arg(ap, uint16_vap); - /* - * If we're changing the compression scheme, the notify the - * previous module so that it can cleanup any state it's - * setup. - */ - if (TIFFFieldSet(tif, FIELD_COMPRESSION)) { - if ((uint32)td->td_compression == v) - break; - (*tif->tif_cleanup)(tif); - tif->tif_flags &= ~TIFF_CODERSETUP; - } - /* - * Setup new compression routine state. - */ - if( (status = TIFFSetCompressionScheme(tif, v)) != 0 ) - td->td_compression = (uint16) v; - else - status = 0; - break; - case TIFFTAG_PHOTOMETRIC: - td->td_photometric = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_THRESHHOLDING: - td->td_threshholding = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_FILLORDER: - v = (uint16) va_arg(ap, uint16_vap); - if (v != FILLORDER_LSB2MSB && v != FILLORDER_MSB2LSB) - goto badvalue; - td->td_fillorder = (uint16) v; - break; - case TIFFTAG_ORIENTATION: - v = (uint16) va_arg(ap, uint16_vap); - if (v < ORIENTATION_TOPLEFT || ORIENTATION_LEFTBOT < v) - goto badvalue; - else - td->td_orientation = (uint16) v; - break; - case TIFFTAG_SAMPLESPERPIXEL: - v = (uint16) va_arg(ap, uint16_vap); - if (v == 0) - goto badvalue; - td->td_samplesperpixel = (uint16) v; - break; - case TIFFTAG_ROWSPERSTRIP: - v32 = (uint32) va_arg(ap, uint32); - if (v32 == 0) - goto badvalue32; - td->td_rowsperstrip = v32; - if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { - td->td_tilelength = v32; - td->td_tilewidth = td->td_imagewidth; - } - break; - case TIFFTAG_MINSAMPLEVALUE: - td->td_minsamplevalue = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_MAXSAMPLEVALUE: - td->td_maxsamplevalue = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_SMINSAMPLEVALUE: - if (tif->tif_flags & TIFF_PERSAMPLE) - _TIFFsetDoubleArray(&td->td_sminsamplevalue, va_arg(ap, double*), td->td_samplesperpixel); - else - setDoubleArrayOneValue(&td->td_sminsamplevalue, va_arg(ap, double), td->td_samplesperpixel); - break; - case TIFFTAG_SMAXSAMPLEVALUE: - if (tif->tif_flags & TIFF_PERSAMPLE) - _TIFFsetDoubleArray(&td->td_smaxsamplevalue, va_arg(ap, double*), td->td_samplesperpixel); - else - setDoubleArrayOneValue(&td->td_smaxsamplevalue, va_arg(ap, double), td->td_samplesperpixel); - break; - case TIFFTAG_XRESOLUTION: - dblval = va_arg(ap, double); - if( dblval < 0 ) - goto badvaluedouble; - td->td_xresolution = (float) dblval; - break; - case TIFFTAG_YRESOLUTION: - dblval = va_arg(ap, double); - if( dblval < 0 ) - goto badvaluedouble; - td->td_yresolution = (float) dblval; - break; - case TIFFTAG_PLANARCONFIG: - v = (uint16) va_arg(ap, uint16_vap); - if (v != PLANARCONFIG_CONTIG && v != PLANARCONFIG_SEPARATE) - goto badvalue; - td->td_planarconfig = (uint16) v; - break; - case TIFFTAG_XPOSITION: - td->td_xposition = (float) va_arg(ap, double); - break; - case TIFFTAG_YPOSITION: - td->td_yposition = (float) va_arg(ap, double); - break; - case TIFFTAG_RESOLUTIONUNIT: - v = (uint16) va_arg(ap, uint16_vap); - if (v < RESUNIT_NONE || RESUNIT_CENTIMETER < v) - goto badvalue; - td->td_resolutionunit = (uint16) v; - break; - case TIFFTAG_PAGENUMBER: - td->td_pagenumber[0] = (uint16) va_arg(ap, uint16_vap); - td->td_pagenumber[1] = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_HALFTONEHINTS: - td->td_halftonehints[0] = (uint16) va_arg(ap, uint16_vap); - td->td_halftonehints[1] = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_COLORMAP: - v32 = (uint32)(1L<td_bitspersample); - _TIFFsetShortArray(&td->td_colormap[0], va_arg(ap, uint16*), v32); - _TIFFsetShortArray(&td->td_colormap[1], va_arg(ap, uint16*), v32); - _TIFFsetShortArray(&td->td_colormap[2], va_arg(ap, uint16*), v32); - break; - case TIFFTAG_EXTRASAMPLES: - if (!setExtraSamples(td, ap, &v)) - goto badvalue; - break; - case TIFFTAG_MATTEING: - td->td_extrasamples = (((uint16) va_arg(ap, uint16_vap)) != 0); - if (td->td_extrasamples) { - uint16 sv = EXTRASAMPLE_ASSOCALPHA; - _TIFFsetShortArray(&td->td_sampleinfo, &sv, 1); - } - break; - case TIFFTAG_TILEWIDTH: - v32 = (uint32) va_arg(ap, uint32); - if (v32 % 16) { - if (tif->tif_mode != O_RDONLY) - goto badvalue32; - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "Nonstandard tile width %d, convert file", v32); - } - td->td_tilewidth = v32; - tif->tif_flags |= TIFF_ISTILED; - break; - case TIFFTAG_TILELENGTH: - v32 = (uint32) va_arg(ap, uint32); - if (v32 % 16) { - if (tif->tif_mode != O_RDONLY) - goto badvalue32; - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "Nonstandard tile length %d, convert file", v32); - } - td->td_tilelength = v32; - tif->tif_flags |= TIFF_ISTILED; - break; - case TIFFTAG_TILEDEPTH: - v32 = (uint32) va_arg(ap, uint32); - if (v32 == 0) - goto badvalue32; - td->td_tiledepth = v32; - break; - case TIFFTAG_DATATYPE: - v = (uint16) va_arg(ap, uint16_vap); - switch (v) { - case DATATYPE_VOID: v = SAMPLEFORMAT_VOID; break; - case DATATYPE_INT: v = SAMPLEFORMAT_INT; break; - case DATATYPE_UINT: v = SAMPLEFORMAT_UINT; break; - case DATATYPE_IEEEFP: v = SAMPLEFORMAT_IEEEFP;break; - default: goto badvalue; - } - td->td_sampleformat = (uint16) v; - break; - case TIFFTAG_SAMPLEFORMAT: - v = (uint16) va_arg(ap, uint16_vap); - if (v < SAMPLEFORMAT_UINT || SAMPLEFORMAT_COMPLEXIEEEFP < v) - goto badvalue; - td->td_sampleformat = (uint16) v; - - /* Try to fix up the SWAB function for complex data. */ - if( td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT - && td->td_bitspersample == 32 - && tif->tif_postdecode == _TIFFSwab32BitData ) - tif->tif_postdecode = _TIFFSwab16BitData; - else if( (td->td_sampleformat == SAMPLEFORMAT_COMPLEXINT - || td->td_sampleformat == SAMPLEFORMAT_COMPLEXIEEEFP) - && td->td_bitspersample == 64 - && tif->tif_postdecode == _TIFFSwab64BitData ) - tif->tif_postdecode = _TIFFSwab32BitData; - break; - case TIFFTAG_IMAGEDEPTH: - td->td_imagedepth = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_SUBIFD: - if ((tif->tif_flags & TIFF_INSUBIFD) == 0) { - td->td_nsubifd = (uint16) va_arg(ap, uint16_vap); - _TIFFsetLong8Array(&td->td_subifd, (uint64*) va_arg(ap, uint64*), - (long) td->td_nsubifd); - } else { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Sorry, cannot nest SubIFDs", - tif->tif_name); - status = 0; - } - break; - case TIFFTAG_YCBCRPOSITIONING: - td->td_ycbcrpositioning = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_YCBCRSUBSAMPLING: - td->td_ycbcrsubsampling[0] = (uint16) va_arg(ap, uint16_vap); - td->td_ycbcrsubsampling[1] = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_TRANSFERFUNCTION: - v = (td->td_samplesperpixel - td->td_extrasamples) > 1 ? 3 : 1; - for (i = 0; i < v; i++) - _TIFFsetShortArray(&td->td_transferfunction[i], - va_arg(ap, uint16*), 1L<td_bitspersample); - break; - case TIFFTAG_REFERENCEBLACKWHITE: - /* XXX should check for null range */ - _TIFFsetFloatArray(&td->td_refblackwhite, va_arg(ap, float*), 6); - break; - case TIFFTAG_INKNAMES: - v = (uint16) va_arg(ap, uint16_vap); - s = va_arg(ap, char*); - v = checkInkNamesString(tif, v, s); - status = v > 0; - if( v > 0 ) { - _TIFFsetNString(&td->td_inknames, s, v); - td->td_inknameslen = v; - } - break; - case TIFFTAG_PERSAMPLE: - v = (uint16) va_arg(ap, uint16_vap); - if( v == PERSAMPLE_MULTI ) - tif->tif_flags |= TIFF_PERSAMPLE; - else - tif->tif_flags &= ~TIFF_PERSAMPLE; - break; - default: { - TIFFTagValue *tv; - int tv_size, iCustom; - - /* - * This can happen if multiple images are open with different - * codecs which have private tags. The global tag information - * table may then have tags that are valid for one file but not - * the other. If the client tries to set a tag that is not valid - * for the image's codec then we'll arrive here. This - * happens, for example, when tiffcp is used to convert between - * compression schemes and codec-specific tags are blindly copied. - */ - if(fip->field_bit != FIELD_CUSTOM) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Invalid %stag \"%s\" (not supported by codec)", - tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", - fip->field_name); - status = 0; - break; - } - - /* - * Find the existing entry for this custom value. - */ - tv = NULL; - for (iCustom = 0; iCustom < td->td_customValueCount; iCustom++) { - if (td->td_customValues[iCustom].info->field_tag == tag) { - tv = td->td_customValues + iCustom; - if (tv->value != NULL) { - _TIFFfree(tv->value); - tv->value = NULL; - } - break; - } - } - - /* - * Grow the custom list if the entry was not found. - */ - if(tv == NULL) { - TIFFTagValue *new_customValues; - - td->td_customValueCount++; - new_customValues = (TIFFTagValue *) - _TIFFrealloc(td->td_customValues, - sizeof(TIFFTagValue) * td->td_customValueCount); - if (!new_customValues) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Failed to allocate space for list of custom values", - tif->tif_name); - status = 0; - goto end; - } - - td->td_customValues = new_customValues; - - tv = td->td_customValues + (td->td_customValueCount - 1); - tv->info = fip; - tv->value = NULL; - tv->count = 0; - } - - /* - * Set custom value ... save a copy of the custom tag value. - */ - tv_size = _TIFFDataSize(fip->field_type); - if (tv_size == 0) { - status = 0; - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Bad field type %d for \"%s\"", - tif->tif_name, fip->field_type, - fip->field_name); - goto end; - } - - if (fip->field_type == TIFF_ASCII) - { - uint32 ma; - char* mb; - if (fip->field_passcount) - { - assert(fip->field_writecount==TIFF_VARIABLE2); - ma=(uint32)va_arg(ap,uint32); - mb=(char*)va_arg(ap,char*); - } - else - { - mb=(char*)va_arg(ap,char*); - ma=(uint32)(strlen(mb)+1); - } - tv->count=ma; - setByteArray(&tv->value,mb,ma,1); - } - else - { - if (fip->field_passcount) { - if (fip->field_writecount == TIFF_VARIABLE2) - tv->count = (uint32) va_arg(ap, uint32); - else - tv->count = (int) va_arg(ap, int); - } else if (fip->field_writecount == TIFF_VARIABLE - || fip->field_writecount == TIFF_VARIABLE2) - tv->count = 1; - else if (fip->field_writecount == TIFF_SPP) - tv->count = td->td_samplesperpixel; - else - tv->count = fip->field_writecount; - - if (tv->count == 0) { - status = 0; - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Null count for \"%s\" (type " - "%d, writecount %d, passcount %d)", - tif->tif_name, - fip->field_name, - fip->field_type, - fip->field_writecount, - fip->field_passcount); - goto end; - } - - tv->value = _TIFFCheckMalloc(tif, tv->count, tv_size, - "custom tag binary object"); - if (!tv->value) { - status = 0; - goto end; - } - - if (fip->field_tag == TIFFTAG_DOTRANGE - && strcmp(fip->field_name,"DotRange") == 0) { - /* TODO: This is an evil exception and should not have been - handled this way ... likely best if we move it into - the directory structure with an explicit field in - libtiff 4.1 and assign it a FIELD_ value */ - uint16 v[2]; - v[0] = (uint16)va_arg(ap, int); - v[1] = (uint16)va_arg(ap, int); - _TIFFmemcpy(tv->value, &v, 4); - } - - else if (fip->field_passcount - || fip->field_writecount == TIFF_VARIABLE - || fip->field_writecount == TIFF_VARIABLE2 - || fip->field_writecount == TIFF_SPP - || tv->count > 1) { - _TIFFmemcpy(tv->value, va_arg(ap, void *), - tv->count * tv_size); - } else { - char *val = (char *)tv->value; - assert( tv->count == 1 ); - - switch (fip->field_type) { - case TIFF_BYTE: - case TIFF_UNDEFINED: - { - uint8 v = (uint8)va_arg(ap, int); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_SBYTE: - { - int8 v = (int8)va_arg(ap, int); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_SHORT: - { - uint16 v = (uint16)va_arg(ap, int); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_SSHORT: - { - int16 v = (int16)va_arg(ap, int); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_LONG: - case TIFF_IFD: - { - uint32 v = va_arg(ap, uint32); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_SLONG: - { - int32 v = va_arg(ap, int32); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_LONG8: - case TIFF_IFD8: - { - uint64 v = va_arg(ap, uint64); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_SLONG8: - { - int64 v = va_arg(ap, int64); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - { - float v = (float)va_arg(ap, double); - _TIFFmemcpy(val, &v, tv_size); - } - break; - case TIFF_DOUBLE: - { - double v = va_arg(ap, double); - _TIFFmemcpy(val, &v, tv_size); - } - break; - default: - _TIFFmemset(val, 0, tv_size); - status = 0; - break; - } - } - } - } - } - if (status) { - const TIFFField* fip=TIFFFieldWithTag(tif,tag); - if (fip) - TIFFSetFieldBit(tif, fip->field_bit); - tif->tif_flags |= TIFF_DIRTYDIRECT; - } - -end: - va_end(ap); - return (status); -badvalue: - { - const TIFFField* fip=TIFFFieldWithTag(tif,tag); - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Bad value %u for \"%s\" tag", - tif->tif_name, v, - fip ? fip->field_name : "Unknown"); - va_end(ap); - } - return (0); -badvalue32: - { - const TIFFField* fip=TIFFFieldWithTag(tif,tag); - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Bad value %u for \"%s\" tag", - tif->tif_name, v32, - fip ? fip->field_name : "Unknown"); - va_end(ap); - } - return (0); -badvaluedouble: - { - const TIFFField* fip=TIFFFieldWithTag(tif,tag); - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Bad value %f for \"%s\" tag", - tif->tif_name, dblval, - fip ? fip->field_name : "Unknown"); - va_end(ap); - } - return (0); -} - -/* - * Return 1/0 according to whether or not - * it is permissible to set the tag's value. - * Note that we allow ImageLength to be changed - * so that we can append and extend to images. - * Any other tag may not be altered once writing - * has commenced, unless its value has no effect - * on the format of the data that is written. - */ -static int -OkToChangeTag(TIFF* tif, uint32 tag) -{ - const TIFFField* fip = TIFFFindField(tif, tag, TIFF_ANY); - if (!fip) { /* unknown tag */ - TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", "%s: Unknown %stag %u", - tif->tif_name, isPseudoTag(tag) ? "pseudo-" : "", tag); - return (0); - } - if (tag != TIFFTAG_IMAGELENGTH && (tif->tif_flags & TIFF_BEENWRITING) && - !fip->field_oktochange) { - /* - * Consult info table to see if tag can be changed - * after we've started writing. We only allow changes - * to those tags that don't/shouldn't affect the - * compression and/or format of the data. - */ - TIFFErrorExt(tif->tif_clientdata, "TIFFSetField", - "%s: Cannot modify tag \"%s\" while writing", - tif->tif_name, fip->field_name); - return (0); - } - return (1); -} - -/* - * Record the value of a field in the - * internal directory structure. The - * field will be written to the file - * when/if the directory structure is - * updated. - */ -int -TIFFSetField(TIFF* tif, uint32 tag, ...) -{ - va_list ap; - int status; - - va_start(ap, tag); - status = TIFFVSetField(tif, tag, ap); - va_end(ap); - return (status); -} - -/* - * Clear the contents of the field in the internal structure. - */ -int -TIFFUnsetField(TIFF* tif, uint32 tag) -{ - const TIFFField *fip = TIFFFieldWithTag(tif, tag); - TIFFDirectory* td = &tif->tif_dir; - - if( !fip ) - return 0; - - if( fip->field_bit != FIELD_CUSTOM ) - TIFFClrFieldBit(tif, fip->field_bit); - else - { - TIFFTagValue *tv = NULL; - int i; - - for (i = 0; i < td->td_customValueCount; i++) { - - tv = td->td_customValues + i; - if( tv->info->field_tag == tag ) - break; - } - - if( i < td->td_customValueCount ) - { - _TIFFfree(tv->value); - for( ; i < td->td_customValueCount-1; i++) { - td->td_customValues[i] = td->td_customValues[i+1]; - } - td->td_customValueCount--; - } - } - - tif->tif_flags |= TIFF_DIRTYDIRECT; - - return (1); -} - -/* - * Like TIFFSetField, but taking a varargs - * parameter list. This routine is useful - * for building higher-level interfaces on - * top of the library. - */ -int -TIFFVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - return OkToChangeTag(tif, tag) ? - (*tif->tif_tagmethods.vsetfield)(tif, tag, ap) : 0; -} - -static int -_TIFFVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - TIFFDirectory* td = &tif->tif_dir; - int ret_val = 1; - uint32 standard_tag = tag; - const TIFFField* fip = TIFFFindField(tif, tag, TIFF_ANY); - if( fip == NULL ) /* cannot happen since TIFFGetField() already checks it */ - return 0; - - /* - * We want to force the custom code to be used for custom - * fields even if the tag happens to match a well known - * one - important for reinterpreted handling of standard - * tag values in custom directories (ie. EXIF) - */ - if (fip->field_bit == FIELD_CUSTOM) { - standard_tag = 0; - } - - switch (standard_tag) { - case TIFFTAG_SUBFILETYPE: - *va_arg(ap, uint32*) = td->td_subfiletype; - break; - case TIFFTAG_IMAGEWIDTH: - *va_arg(ap, uint32*) = td->td_imagewidth; - break; - case TIFFTAG_IMAGELENGTH: - *va_arg(ap, uint32*) = td->td_imagelength; - break; - case TIFFTAG_BITSPERSAMPLE: - *va_arg(ap, uint16*) = td->td_bitspersample; - break; - case TIFFTAG_COMPRESSION: - *va_arg(ap, uint16*) = td->td_compression; - break; - case TIFFTAG_PHOTOMETRIC: - *va_arg(ap, uint16*) = td->td_photometric; - break; - case TIFFTAG_THRESHHOLDING: - *va_arg(ap, uint16*) = td->td_threshholding; - break; - case TIFFTAG_FILLORDER: - *va_arg(ap, uint16*) = td->td_fillorder; - break; - case TIFFTAG_ORIENTATION: - *va_arg(ap, uint16*) = td->td_orientation; - break; - case TIFFTAG_SAMPLESPERPIXEL: - *va_arg(ap, uint16*) = td->td_samplesperpixel; - break; - case TIFFTAG_ROWSPERSTRIP: - *va_arg(ap, uint32*) = td->td_rowsperstrip; - break; - case TIFFTAG_MINSAMPLEVALUE: - *va_arg(ap, uint16*) = td->td_minsamplevalue; - break; - case TIFFTAG_MAXSAMPLEVALUE: - *va_arg(ap, uint16*) = td->td_maxsamplevalue; - break; - case TIFFTAG_SMINSAMPLEVALUE: - if (tif->tif_flags & TIFF_PERSAMPLE) - *va_arg(ap, double**) = td->td_sminsamplevalue; - else - { - /* libtiff historially treats this as a single value. */ - uint16 i; - double v = td->td_sminsamplevalue[0]; - for (i=1; i < td->td_samplesperpixel; ++i) - if( td->td_sminsamplevalue[i] < v ) - v = td->td_sminsamplevalue[i]; - *va_arg(ap, double*) = v; - } - break; - case TIFFTAG_SMAXSAMPLEVALUE: - if (tif->tif_flags & TIFF_PERSAMPLE) - *va_arg(ap, double**) = td->td_smaxsamplevalue; - else - { - /* libtiff historially treats this as a single value. */ - uint16 i; - double v = td->td_smaxsamplevalue[0]; - for (i=1; i < td->td_samplesperpixel; ++i) - if( td->td_smaxsamplevalue[i] > v ) - v = td->td_smaxsamplevalue[i]; - *va_arg(ap, double*) = v; - } - break; - case TIFFTAG_XRESOLUTION: - *va_arg(ap, float*) = td->td_xresolution; - break; - case TIFFTAG_YRESOLUTION: - *va_arg(ap, float*) = td->td_yresolution; - break; - case TIFFTAG_PLANARCONFIG: - *va_arg(ap, uint16*) = td->td_planarconfig; - break; - case TIFFTAG_XPOSITION: - *va_arg(ap, float*) = td->td_xposition; - break; - case TIFFTAG_YPOSITION: - *va_arg(ap, float*) = td->td_yposition; - break; - case TIFFTAG_RESOLUTIONUNIT: - *va_arg(ap, uint16*) = td->td_resolutionunit; - break; - case TIFFTAG_PAGENUMBER: - *va_arg(ap, uint16*) = td->td_pagenumber[0]; - *va_arg(ap, uint16*) = td->td_pagenumber[1]; - break; - case TIFFTAG_HALFTONEHINTS: - *va_arg(ap, uint16*) = td->td_halftonehints[0]; - *va_arg(ap, uint16*) = td->td_halftonehints[1]; - break; - case TIFFTAG_COLORMAP: - *va_arg(ap, uint16**) = td->td_colormap[0]; - *va_arg(ap, uint16**) = td->td_colormap[1]; - *va_arg(ap, uint16**) = td->td_colormap[2]; - break; - case TIFFTAG_STRIPOFFSETS: - case TIFFTAG_TILEOFFSETS: - _TIFFFillStriles( tif ); - *va_arg(ap, uint64**) = td->td_stripoffset; - break; - case TIFFTAG_STRIPBYTECOUNTS: - case TIFFTAG_TILEBYTECOUNTS: - _TIFFFillStriles( tif ); - *va_arg(ap, uint64**) = td->td_stripbytecount; - break; - case TIFFTAG_MATTEING: - *va_arg(ap, uint16*) = - (td->td_extrasamples == 1 && - td->td_sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); - break; - case TIFFTAG_EXTRASAMPLES: - *va_arg(ap, uint16*) = td->td_extrasamples; - *va_arg(ap, uint16**) = td->td_sampleinfo; - break; - case TIFFTAG_TILEWIDTH: - *va_arg(ap, uint32*) = td->td_tilewidth; - break; - case TIFFTAG_TILELENGTH: - *va_arg(ap, uint32*) = td->td_tilelength; - break; - case TIFFTAG_TILEDEPTH: - *va_arg(ap, uint32*) = td->td_tiledepth; - break; - case TIFFTAG_DATATYPE: - switch (td->td_sampleformat) { - case SAMPLEFORMAT_UINT: - *va_arg(ap, uint16*) = DATATYPE_UINT; - break; - case SAMPLEFORMAT_INT: - *va_arg(ap, uint16*) = DATATYPE_INT; - break; - case SAMPLEFORMAT_IEEEFP: - *va_arg(ap, uint16*) = DATATYPE_IEEEFP; - break; - case SAMPLEFORMAT_VOID: - *va_arg(ap, uint16*) = DATATYPE_VOID; - break; - } - break; - case TIFFTAG_SAMPLEFORMAT: - *va_arg(ap, uint16*) = td->td_sampleformat; - break; - case TIFFTAG_IMAGEDEPTH: - *va_arg(ap, uint32*) = td->td_imagedepth; - break; - case TIFFTAG_SUBIFD: - *va_arg(ap, uint16*) = td->td_nsubifd; - *va_arg(ap, uint64**) = td->td_subifd; - break; - case TIFFTAG_YCBCRPOSITIONING: - *va_arg(ap, uint16*) = td->td_ycbcrpositioning; - break; - case TIFFTAG_YCBCRSUBSAMPLING: - *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[0]; - *va_arg(ap, uint16*) = td->td_ycbcrsubsampling[1]; - break; - case TIFFTAG_TRANSFERFUNCTION: - *va_arg(ap, uint16**) = td->td_transferfunction[0]; - if (td->td_samplesperpixel - td->td_extrasamples > 1) { - *va_arg(ap, uint16**) = td->td_transferfunction[1]; - *va_arg(ap, uint16**) = td->td_transferfunction[2]; - } - break; - case TIFFTAG_REFERENCEBLACKWHITE: - *va_arg(ap, float**) = td->td_refblackwhite; - break; - case TIFFTAG_INKNAMES: - *va_arg(ap, char**) = td->td_inknames; - break; - default: - { - int i; - - /* - * This can happen if multiple images are open - * with different codecs which have private - * tags. The global tag information table may - * then have tags that are valid for one file - * but not the other. If the client tries to - * get a tag that is not valid for the image's - * codec then we'll arrive here. - */ - if( fip->field_bit != FIELD_CUSTOM ) - { - TIFFErrorExt(tif->tif_clientdata, "_TIFFVGetField", - "%s: Invalid %stag \"%s\" " - "(not supported by codec)", - tif->tif_name, - isPseudoTag(tag) ? "pseudo-" : "", - fip->field_name); - ret_val = 0; - break; - } - - /* - * Do we have a custom value? - */ - ret_val = 0; - for (i = 0; i < td->td_customValueCount; i++) { - TIFFTagValue *tv = td->td_customValues + i; - - if (tv->info->field_tag != tag) - continue; - - if (fip->field_passcount) { - if (fip->field_readcount == TIFF_VARIABLE2) - *va_arg(ap, uint32*) = (uint32)tv->count; - else /* Assume TIFF_VARIABLE */ - *va_arg(ap, uint16*) = (uint16)tv->count; - *va_arg(ap, void **) = tv->value; - ret_val = 1; - } else if (fip->field_tag == TIFFTAG_DOTRANGE - && strcmp(fip->field_name,"DotRange") == 0) { - /* TODO: This is an evil exception and should not have been - handled this way ... likely best if we move it into - the directory structure with an explicit field in - libtiff 4.1 and assign it a FIELD_ value */ - *va_arg(ap, uint16*) = ((uint16 *)tv->value)[0]; - *va_arg(ap, uint16*) = ((uint16 *)tv->value)[1]; - ret_val = 1; - } else { - if (fip->field_type == TIFF_ASCII - || fip->field_readcount == TIFF_VARIABLE - || fip->field_readcount == TIFF_VARIABLE2 - || fip->field_readcount == TIFF_SPP - || tv->count > 1) { - *va_arg(ap, void **) = tv->value; - ret_val = 1; - } else { - char *val = (char *)tv->value; - assert( tv->count == 1 ); - switch (fip->field_type) { - case TIFF_BYTE: - case TIFF_UNDEFINED: - *va_arg(ap, uint8*) = - *(uint8 *)val; - ret_val = 1; - break; - case TIFF_SBYTE: - *va_arg(ap, int8*) = - *(int8 *)val; - ret_val = 1; - break; - case TIFF_SHORT: - *va_arg(ap, uint16*) = - *(uint16 *)val; - ret_val = 1; - break; - case TIFF_SSHORT: - *va_arg(ap, int16*) = - *(int16 *)val; - ret_val = 1; - break; - case TIFF_LONG: - case TIFF_IFD: - *va_arg(ap, uint32*) = - *(uint32 *)val; - ret_val = 1; - break; - case TIFF_SLONG: - *va_arg(ap, int32*) = - *(int32 *)val; - ret_val = 1; - break; - case TIFF_LONG8: - case TIFF_IFD8: - *va_arg(ap, uint64*) = - *(uint64 *)val; - ret_val = 1; - break; - case TIFF_SLONG8: - *va_arg(ap, int64*) = - *(int64 *)val; - ret_val = 1; - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - *va_arg(ap, float*) = - *(float *)val; - ret_val = 1; - break; - case TIFF_DOUBLE: - *va_arg(ap, double*) = - *(double *)val; - ret_val = 1; - break; - default: - ret_val = 0; - break; - } - } - } - break; - } - } - } - return(ret_val); -} - -/* - * Return the value of a field in the - * internal directory structure. - */ -int -TIFFGetField(TIFF* tif, uint32 tag, ...) -{ - int status; - va_list ap; - - va_start(ap, tag); - status = TIFFVGetField(tif, tag, ap); - va_end(ap); - return (status); -} - -/* - * Like TIFFGetField, but taking a varargs - * parameter list. This routine is useful - * for building higher-level interfaces on - * top of the library. - */ -int -TIFFVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - const TIFFField* fip = TIFFFindField(tif, tag, TIFF_ANY); - return (fip && (isPseudoTag(tag) || TIFFFieldSet(tif, fip->field_bit)) ? - (*tif->tif_tagmethods.vgetfield)(tif, tag, ap) : 0); -} - -#define CleanupField(member) { \ - if (td->member) { \ - _TIFFfree(td->member); \ - td->member = 0; \ - } \ -} - -/* - * Release storage associated with a directory. - */ -void -TIFFFreeDirectory(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - int i; - - _TIFFmemset(td->td_fieldsset, 0, FIELD_SETLONGS); - CleanupField(td_sminsamplevalue); - CleanupField(td_smaxsamplevalue); - CleanupField(td_colormap[0]); - CleanupField(td_colormap[1]); - CleanupField(td_colormap[2]); - CleanupField(td_sampleinfo); - CleanupField(td_subifd); - CleanupField(td_inknames); - CleanupField(td_refblackwhite); - CleanupField(td_transferfunction[0]); - CleanupField(td_transferfunction[1]); - CleanupField(td_transferfunction[2]); - CleanupField(td_stripoffset); - CleanupField(td_stripbytecount); - TIFFClrFieldBit(tif, FIELD_YCBCRSUBSAMPLING); - TIFFClrFieldBit(tif, FIELD_YCBCRPOSITIONING); - - /* Cleanup custom tag values */ - for( i = 0; i < td->td_customValueCount; i++ ) { - if (td->td_customValues[i].value) - _TIFFfree(td->td_customValues[i].value); - } - - td->td_customValueCount = 0; - CleanupField(td_customValues); - -#if defined(DEFER_STRILE_LOAD) - _TIFFmemset( &(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); - _TIFFmemset( &(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); -#endif -} -#undef CleanupField - -/* - * Client Tag extension support (from Niles Ritter). - */ -static TIFFExtendProc _TIFFextender = (TIFFExtendProc) NULL; - -TIFFExtendProc -TIFFSetTagExtender(TIFFExtendProc extender) -{ - TIFFExtendProc prev = _TIFFextender; - _TIFFextender = extender; - return (prev); -} - -/* - * Setup for a new directory. Should we automatically call - * TIFFWriteDirectory() if the current one is dirty? - * - * The newly created directory will not exist on the file till - * TIFFWriteDirectory(), TIFFFlush() or TIFFClose() is called. - */ -int -TIFFCreateDirectory(TIFF* tif) -{ - TIFFDefaultDirectory(tif); - tif->tif_diroff = 0; - tif->tif_nextdiroff = 0; - tif->tif_curoff = 0; - tif->tif_row = (uint32) -1; - tif->tif_curstrip = (uint32) -1; - - return 0; -} - -int -TIFFCreateCustomDirectory(TIFF* tif, const TIFFFieldArray* infoarray) -{ - TIFFDefaultDirectory(tif); - - /* - * Reset the field definitions to match the application provided list. - * Hopefully TIFFDefaultDirectory() won't have done anything irreversable - * based on it's assumption this is an image directory. - */ - _TIFFSetupFields(tif, infoarray); - - tif->tif_diroff = 0; - tif->tif_nextdiroff = 0; - tif->tif_curoff = 0; - tif->tif_row = (uint32) -1; - tif->tif_curstrip = (uint32) -1; - - return 0; -} - -int -TIFFCreateEXIFDirectory(TIFF* tif) -{ - const TIFFFieldArray* exifFieldArray; - exifFieldArray = _TIFFGetExifFields(); - return TIFFCreateCustomDirectory(tif, exifFieldArray); -} - -/* - * Setup a default directory structure. - */ -int -TIFFDefaultDirectory(TIFF* tif) -{ - register TIFFDirectory* td = &tif->tif_dir; - const TIFFFieldArray* tiffFieldArray; - - tiffFieldArray = _TIFFGetFields(); - _TIFFSetupFields(tif, tiffFieldArray); - - _TIFFmemset(td, 0, sizeof (*td)); - td->td_fillorder = FILLORDER_MSB2LSB; - td->td_bitspersample = 1; - td->td_threshholding = THRESHHOLD_BILEVEL; - td->td_orientation = ORIENTATION_TOPLEFT; - td->td_samplesperpixel = 1; - td->td_rowsperstrip = (uint32) -1; - td->td_tilewidth = 0; - td->td_tilelength = 0; - td->td_tiledepth = 1; - td->td_stripbytecountsorted = 1; /* Our own arrays always sorted. */ - td->td_resolutionunit = RESUNIT_INCH; - td->td_sampleformat = SAMPLEFORMAT_UINT; - td->td_imagedepth = 1; - td->td_ycbcrsubsampling[0] = 2; - td->td_ycbcrsubsampling[1] = 2; - td->td_ycbcrpositioning = YCBCRPOSITION_CENTERED; - tif->tif_postdecode = _TIFFNoPostDecode; - tif->tif_foundfield = NULL; - tif->tif_tagmethods.vsetfield = _TIFFVSetField; - tif->tif_tagmethods.vgetfield = _TIFFVGetField; - tif->tif_tagmethods.printdir = NULL; - /* - * Give client code a chance to install their own - * tag extensions & methods, prior to compression overloads, - * but do some prior cleanup first. (http://trac.osgeo.org/gdal/ticket/5054) - */ - if (tif->tif_nfieldscompat > 0) { - uint32 i; - - for (i = 0; i < tif->tif_nfieldscompat; i++) { - if (tif->tif_fieldscompat[i].allocated_size) - _TIFFfree(tif->tif_fieldscompat[i].fields); - } - _TIFFfree(tif->tif_fieldscompat); - tif->tif_nfieldscompat = 0; - tif->tif_fieldscompat = NULL; - } - if (_TIFFextender) - (*_TIFFextender)(tif); - (void) TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - /* - * NB: The directory is marked dirty as a result of setting - * up the default compression scheme. However, this really - * isn't correct -- we want TIFF_DIRTYDIRECT to be set only - * if the user does something. We could just do the setup - * by hand, but it seems better to use the normal mechanism - * (i.e. TIFFSetField). - */ - tif->tif_flags &= ~TIFF_DIRTYDIRECT; - - /* - * As per http://bugzilla.remotesensing.org/show_bug.cgi?id=19 - * we clear the ISTILED flag when setting up a new directory. - * Should we also be clearing stuff like INSUBIFD? - */ - tif->tif_flags &= ~TIFF_ISTILED; - - return (1); -} - -static int -TIFFAdvanceDirectory(TIFF* tif, uint64* nextdir, uint64* off) -{ - static const char module[] = "TIFFAdvanceDirectory"; - if (isMapped(tif)) - { - uint64 poff=*nextdir; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - tmsize_t poffa,poffb,poffc,poffd; - uint16 dircount; - uint32 nextdir32; - poffa=(tmsize_t)poff; - poffb=poffa+sizeof(uint16); - if (((uint64)poffa!=poff)||(poffbtif->tif_size)) - { - TIFFErrorExt(tif->tif_clientdata,module,"Error fetching directory count"); - *nextdir=0; - return(0); - } - _TIFFmemcpy(&dircount,tif->tif_base+poffa,sizeof(uint16)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort(&dircount); - poffc=poffb+dircount*12; - poffd=poffc+sizeof(uint32); - if ((poffctif->tif_size)) - { - TIFFErrorExt(tif->tif_clientdata,module,"Error fetching directory link"); - return(0); - } - if (off!=NULL) - *off=(uint64)poffc; - _TIFFmemcpy(&nextdir32,tif->tif_base+poffc,sizeof(uint32)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&nextdir32); - *nextdir=nextdir32; - } - else - { - tmsize_t poffa,poffb,poffc,poffd; - uint64 dircount64; - uint16 dircount16; - poffa=(tmsize_t)poff; - poffb=poffa+sizeof(uint64); - if (((uint64)poffa!=poff)||(poffbtif->tif_size)) - { - TIFFErrorExt(tif->tif_clientdata,module,"Error fetching directory count"); - return(0); - } - _TIFFmemcpy(&dircount64,tif->tif_base+poffa,sizeof(uint64)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>0xFFFF) - { - TIFFErrorExt(tif->tif_clientdata,module,"Sanity check on directory count failed"); - return(0); - } - dircount16=(uint16)dircount64; - poffc=poffb+dircount16*20; - poffd=poffc+sizeof(uint64); - if ((poffctif->tif_size)) - { - TIFFErrorExt(tif->tif_clientdata,module,"Error fetching directory link"); - return(0); - } - if (off!=NULL) - *off=(uint64)poffc; - _TIFFmemcpy(nextdir,tif->tif_base+poffc,sizeof(uint64)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(nextdir); - } - return(1); - } - else - { - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint16 dircount; - uint32 nextdir32; - if (!SeekOK(tif, *nextdir) || - !ReadOK(tif, &dircount, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - if (off != NULL) - *off = TIFFSeekFile(tif, - dircount*12, SEEK_CUR); - else - (void) TIFFSeekFile(tif, - dircount*12, SEEK_CUR); - if (!ReadOK(tif, &nextdir32, sizeof (uint32))) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextdir32); - *nextdir=nextdir32; - } - else - { - uint64 dircount64; - uint16 dircount16; - if (!SeekOK(tif, *nextdir) || - !ReadOK(tif, &dircount64, sizeof (uint64))) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory count", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>0xFFFF) - { - TIFFErrorExt(tif->tif_clientdata, module, "Error fetching directory count"); - return(0); - } - dircount16 = (uint16)dircount64; - if (off != NULL) - *off = TIFFSeekFile(tif, - dircount16*20, SEEK_CUR); - else - (void) TIFFSeekFile(tif, - dircount16*20, SEEK_CUR); - if (!ReadOK(tif, nextdir, sizeof (uint64))) { - TIFFErrorExt(tif->tif_clientdata, module, "%s: Error fetching directory link", - tif->tif_name); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(nextdir); - } - return (1); - } -} - -/* - * Count the number of directories in a file. - */ -uint16 -TIFFNumberOfDirectories(TIFF* tif) -{ - static const char module[] = "TIFFNumberOfDirectories"; - uint64 nextdir; - uint16 n; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - nextdir = tif->tif_header.classic.tiff_diroff; - else - nextdir = tif->tif_header.big.tiff_diroff; - n = 0; - while (nextdir != 0 && TIFFAdvanceDirectory(tif, &nextdir, NULL)) - { - if(++n == 0) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Directory count exceeded 65535 limit, giving up on counting."); - return (65535); - } - } - return (n); -} - -/* - * Set the n-th directory as the current directory. - * NB: Directories are numbered starting at 0. - */ -int -TIFFSetDirectory(TIFF* tif, uint16 dirn) -{ - uint64 nextdir; - uint16 n; - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - nextdir = tif->tif_header.classic.tiff_diroff; - else - nextdir = tif->tif_header.big.tiff_diroff; - for (n = dirn; n > 0 && nextdir != 0; n--) - if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) - return (0); - tif->tif_nextdiroff = nextdir; - /* - * Set curdir to the actual directory index. The - * -1 is because TIFFReadDirectory will increment - * tif_curdir after successfully reading the directory. - */ - tif->tif_curdir = (dirn - n) - 1; - /* - * Reset tif_dirnumber counter and start new list of seen directories. - * We need this to prevent IFD loops. - */ - tif->tif_dirnumber = 0; - return (TIFFReadDirectory(tif)); -} - -/* - * Set the current directory to be the directory - * located at the specified file offset. This interface - * is used mainly to access directories linked with - * the SubIFD tag (e.g. thumbnail images). - */ -int -TIFFSetSubDirectory(TIFF* tif, uint64 diroff) -{ - tif->tif_nextdiroff = diroff; - /* - * Reset tif_dirnumber counter and start new list of seen directories. - * We need this to prevent IFD loops. - */ - tif->tif_dirnumber = 0; - return (TIFFReadDirectory(tif)); -} - -/* - * Return file offset of the current directory. - */ -uint64 -TIFFCurrentDirOffset(TIFF* tif) -{ - return (tif->tif_diroff); -} - -/* - * Return an indication of whether or not we are - * at the last directory in the file. - */ -int -TIFFLastDirectory(TIFF* tif) -{ - return (tif->tif_nextdiroff == 0); -} - -/* - * Unlink the specified directory from the directory chain. - */ -int -TIFFUnlinkDirectory(TIFF* tif, uint16 dirn) -{ - static const char module[] = "TIFFUnlinkDirectory"; - uint64 nextdir; - uint64 off; - uint16 n; - - if (tif->tif_mode == O_RDONLY) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not unlink directory in read-only file"); - return (0); - } - /* - * Go to the directory before the one we want - * to unlink and nab the offset of the link - * field we'll need to patch. - */ - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - nextdir = tif->tif_header.classic.tiff_diroff; - off = 4; - } - else - { - nextdir = tif->tif_header.big.tiff_diroff; - off = 8; - } - for (n = dirn-1; n > 0; n--) { - if (nextdir == 0) { - TIFFErrorExt(tif->tif_clientdata, module, "Directory %d does not exist", dirn); - return (0); - } - if (!TIFFAdvanceDirectory(tif, &nextdir, &off)) - return (0); - } - /* - * Advance to the directory to be unlinked and fetch - * the offset of the directory that follows. - */ - if (!TIFFAdvanceDirectory(tif, &nextdir, NULL)) - return (0); - /* - * Go back and patch the link field of the preceding - * directory to point to the offset of the directory - * that follows. - */ - (void) TIFFSeekFile(tif, off, SEEK_SET); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 nextdir32; - nextdir32=(uint32)nextdir; - assert((uint64)nextdir32==nextdir); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextdir32); - if (!WriteOK(tif, &nextdir32, sizeof (uint32))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); - return (0); - } - } - else - { - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&nextdir); - if (!WriteOK(tif, &nextdir, sizeof (uint64))) { - TIFFErrorExt(tif->tif_clientdata, module, "Error writing directory link"); - return (0); - } - } - /* - * Leave directory state setup safely. We don't have - * facilities for doing inserting and removing directories, - * so it's safest to just invalidate everything. This - * means that the caller can only append to the directory - * chain. - */ - (*tif->tif_cleanup)(tif); - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawcc = 0; - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = 0; - } - tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP|TIFF_POSTENCODE|TIFF_BUF4WRITE); - TIFFFreeDirectory(tif); - TIFFDefaultDirectory(tif); - tif->tif_diroff = 0; /* force link on next write */ - tif->tif_nextdiroff = 0; /* next write must be at end */ - tif->tif_curoff = 0; - tif->tif_row = (uint32) -1; - tif->tif_curstrip = (uint32) -1; - return (1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dir.h b/tiff/libtiff/tif_dir.h deleted file mode 100755 index 6af5f3d..0000000 --- a/tiff/libtiff/tif_dir.h +++ /dev/null @@ -1,308 +0,0 @@ -/* $Id: tif_dir.h,v 1.54 2011-02-18 20:53:05 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFDIR_ -#define _TIFFDIR_ -/* - * ``Library-private'' Directory-related Definitions. - */ - -typedef struct { - const TIFFField *info; - int count; - void *value; -} TIFFTagValue; - -/* - * TIFF Image File Directories are comprised of a table of field - * descriptors of the form shown below. The table is sorted in - * ascending order by tag. The values associated with each entry are - * disjoint and may appear anywhere in the file (so long as they are - * placed on a word boundary). - * - * If the value is 4 bytes or less, in ClassicTIFF, or 8 bytes or less in - * BigTIFF, then it is placed in the offset field to save space. If so, - * it is left-justified in the offset field. - */ -typedef struct { - uint16 tdir_tag; /* see below */ - uint16 tdir_type; /* data type; see below */ - uint64 tdir_count; /* number of items; length in spec */ - union { - uint16 toff_short; - uint32 toff_long; - uint64 toff_long8; - } tdir_offset; /* either offset or the data itself if fits */ -} TIFFDirEntry; - -/* - * Internal format of a TIFF directory entry. - */ -typedef struct { -#define FIELD_SETLONGS 4 - /* bit vector of fields that are set */ - unsigned long td_fieldsset[FIELD_SETLONGS]; - - uint32 td_imagewidth, td_imagelength, td_imagedepth; - uint32 td_tilewidth, td_tilelength, td_tiledepth; - uint32 td_subfiletype; - uint16 td_bitspersample; - uint16 td_sampleformat; - uint16 td_compression; - uint16 td_photometric; - uint16 td_threshholding; - uint16 td_fillorder; - uint16 td_orientation; - uint16 td_samplesperpixel; - uint32 td_rowsperstrip; - uint16 td_minsamplevalue, td_maxsamplevalue; - double* td_sminsamplevalue; - double* td_smaxsamplevalue; - float td_xresolution, td_yresolution; - uint16 td_resolutionunit; - uint16 td_planarconfig; - float td_xposition, td_yposition; - uint16 td_pagenumber[2]; - uint16* td_colormap[3]; - uint16 td_halftonehints[2]; - uint16 td_extrasamples; - uint16* td_sampleinfo; - /* even though the name is misleading, td_stripsperimage is the number - * of striles (=strips or tiles) per plane, and td_nstrips the total - * number of striles */ - uint32 td_stripsperimage; - uint32 td_nstrips; /* size of offset & bytecount arrays */ - uint64* td_stripoffset; - uint64* td_stripbytecount; - int td_stripbytecountsorted; /* is the bytecount array sorted ascending? */ -#if defined(DEFER_STRILE_LOAD) - TIFFDirEntry td_stripoffset_entry; /* for deferred loading */ - TIFFDirEntry td_stripbytecount_entry; /* for deferred loading */ -#endif - uint16 td_nsubifd; - uint64* td_subifd; - /* YCbCr parameters */ - uint16 td_ycbcrsubsampling[2]; - uint16 td_ycbcrpositioning; - /* Colorimetry parameters */ - uint16* td_transferfunction[3]; - float* td_refblackwhite; - /* CMYK parameters */ - int td_inknameslen; - char* td_inknames; - - int td_customValueCount; - TIFFTagValue *td_customValues; -} TIFFDirectory; - -/* - * Field flags used to indicate fields that have been set in a directory, and - * to reference fields when manipulating a directory. - */ - -/* - * FIELD_IGNORE is used to signify tags that are to be processed but otherwise - * ignored. This permits antiquated tags to be quietly read and discarded. - * Note that a bit *is* allocated for ignored tags; this is understood by the - * directory reading logic which uses this fact to avoid special-case handling - */ -#define FIELD_IGNORE 0 - -/* multi-item fields */ -#define FIELD_IMAGEDIMENSIONS 1 -#define FIELD_TILEDIMENSIONS 2 -#define FIELD_RESOLUTION 3 -#define FIELD_POSITION 4 - -/* single-item fields */ -#define FIELD_SUBFILETYPE 5 -#define FIELD_BITSPERSAMPLE 6 -#define FIELD_COMPRESSION 7 -#define FIELD_PHOTOMETRIC 8 -#define FIELD_THRESHHOLDING 9 -#define FIELD_FILLORDER 10 -#define FIELD_ORIENTATION 15 -#define FIELD_SAMPLESPERPIXEL 16 -#define FIELD_ROWSPERSTRIP 17 -#define FIELD_MINSAMPLEVALUE 18 -#define FIELD_MAXSAMPLEVALUE 19 -#define FIELD_PLANARCONFIG 20 -#define FIELD_RESOLUTIONUNIT 22 -#define FIELD_PAGENUMBER 23 -#define FIELD_STRIPBYTECOUNTS 24 -#define FIELD_STRIPOFFSETS 25 -#define FIELD_COLORMAP 26 -#define FIELD_EXTRASAMPLES 31 -#define FIELD_SAMPLEFORMAT 32 -#define FIELD_SMINSAMPLEVALUE 33 -#define FIELD_SMAXSAMPLEVALUE 34 -#define FIELD_IMAGEDEPTH 35 -#define FIELD_TILEDEPTH 36 -#define FIELD_HALFTONEHINTS 37 -#define FIELD_YCBCRSUBSAMPLING 39 -#define FIELD_YCBCRPOSITIONING 40 -#define FIELD_REFBLACKWHITE 41 -#define FIELD_TRANSFERFUNCTION 44 -#define FIELD_INKNAMES 46 -#define FIELD_SUBIFD 49 -/* FIELD_CUSTOM (see tiffio.h) 65 */ -/* end of support for well-known tags; codec-private tags follow */ -#define FIELD_CODEC 66 /* base of codec-private tags */ - - -/* - * Pseudo-tags don't normally need field bits since they are not written to an - * output file (by definition). The library also has express logic to always - * query a codec for a pseudo-tag so allocating a field bit for one is a - * waste. If codec wants to promote the notion of a pseudo-tag being ``set'' - * or ``unset'' then it can do using internal state flags without polluting - * the field bit space defined for real tags. - */ -#define FIELD_PSEUDO 0 - -#define FIELD_LAST (32*FIELD_SETLONGS-1) - -#define BITn(n) (((unsigned long)1L)<<((n)&0x1f)) -#define BITFIELDn(tif, n) ((tif)->tif_dir.td_fieldsset[(n)/32]) -#define TIFFFieldSet(tif, field) (BITFIELDn(tif, field) & BITn(field)) -#define TIFFSetFieldBit(tif, field) (BITFIELDn(tif, field) |= BITn(field)) -#define TIFFClrFieldBit(tif, field) (BITFIELDn(tif, field) &= ~BITn(field)) - -#define FieldSet(fields, f) (fields[(f)/32] & BITn(f)) -#define ResetFieldBit(fields, f) (fields[(f)/32] &= ~BITn(f)) - -typedef enum { - TIFF_SETGET_UNDEFINED = 0, - TIFF_SETGET_ASCII = 1, - TIFF_SETGET_UINT8 = 2, - TIFF_SETGET_SINT8 = 3, - TIFF_SETGET_UINT16 = 4, - TIFF_SETGET_SINT16 = 5, - TIFF_SETGET_UINT32 = 6, - TIFF_SETGET_SINT32 = 7, - TIFF_SETGET_UINT64 = 8, - TIFF_SETGET_SINT64 = 9, - TIFF_SETGET_FLOAT = 10, - TIFF_SETGET_DOUBLE = 11, - TIFF_SETGET_IFD8 = 12, - TIFF_SETGET_INT = 13, - TIFF_SETGET_UINT16_PAIR = 14, - TIFF_SETGET_C0_ASCII = 15, - TIFF_SETGET_C0_UINT8 = 16, - TIFF_SETGET_C0_SINT8 = 17, - TIFF_SETGET_C0_UINT16 = 18, - TIFF_SETGET_C0_SINT16 = 19, - TIFF_SETGET_C0_UINT32 = 20, - TIFF_SETGET_C0_SINT32 = 21, - TIFF_SETGET_C0_UINT64 = 22, - TIFF_SETGET_C0_SINT64 = 23, - TIFF_SETGET_C0_FLOAT = 24, - TIFF_SETGET_C0_DOUBLE = 25, - TIFF_SETGET_C0_IFD8 = 26, - TIFF_SETGET_C16_ASCII = 27, - TIFF_SETGET_C16_UINT8 = 28, - TIFF_SETGET_C16_SINT8 = 29, - TIFF_SETGET_C16_UINT16 = 30, - TIFF_SETGET_C16_SINT16 = 31, - TIFF_SETGET_C16_UINT32 = 32, - TIFF_SETGET_C16_SINT32 = 33, - TIFF_SETGET_C16_UINT64 = 34, - TIFF_SETGET_C16_SINT64 = 35, - TIFF_SETGET_C16_FLOAT = 36, - TIFF_SETGET_C16_DOUBLE = 37, - TIFF_SETGET_C16_IFD8 = 38, - TIFF_SETGET_C32_ASCII = 39, - TIFF_SETGET_C32_UINT8 = 40, - TIFF_SETGET_C32_SINT8 = 41, - TIFF_SETGET_C32_UINT16 = 42, - TIFF_SETGET_C32_SINT16 = 43, - TIFF_SETGET_C32_UINT32 = 44, - TIFF_SETGET_C32_SINT32 = 45, - TIFF_SETGET_C32_UINT64 = 46, - TIFF_SETGET_C32_SINT64 = 47, - TIFF_SETGET_C32_FLOAT = 48, - TIFF_SETGET_C32_DOUBLE = 49, - TIFF_SETGET_C32_IFD8 = 50, - TIFF_SETGET_OTHER = 51 -} TIFFSetGetFieldType; - -#if defined(__cplusplus) -extern "C" { -#endif - -extern const TIFFFieldArray* _TIFFGetFields(void); -extern const TIFFFieldArray* _TIFFGetExifFields(void); -extern void _TIFFSetupFields(TIFF* tif, const TIFFFieldArray* infoarray); -extern void _TIFFPrintFieldInfo(TIFF*, FILE*); - -extern int _TIFFFillStriles(TIFF*); - -typedef enum { - tfiatImage, - tfiatExif, - tfiatOther -} TIFFFieldArrayType; - -struct _TIFFFieldArray { - TIFFFieldArrayType type; /* array type, will be used to determine if IFD is image and such */ - uint32 allocated_size; /* 0 if array is constant, other if modified by future definition extension support */ - uint32 count; /* number of elements in fields array */ - TIFFField* fields; /* actual field info */ -}; - -struct _TIFFField { - uint32 field_tag; /* field's tag */ - short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ - short field_writecount; /* write count/TIFF_VARIABLE */ - TIFFDataType field_type; /* type of associated data */ - uint32 reserved; /* reserved for future extension */ - TIFFSetGetFieldType set_field_type; /* type to be passed to TIFFSetField */ - TIFFSetGetFieldType get_field_type; /* type to be passed to TIFFGetField */ - unsigned short field_bit; /* bit in fieldsset bit vector */ - unsigned char field_oktochange; /* if true, can change while writing */ - unsigned char field_passcount; /* if true, pass dir count on set */ - char* field_name; /* ASCII name */ - TIFFFieldArray* field_subfields; /* if field points to child ifds, child ifd field definition array */ -}; - -extern int _TIFFMergeFields(TIFF*, const TIFFField[], uint32); -extern const TIFFField* _TIFFFindOrRegisterField(TIFF *, uint32, TIFFDataType); -extern TIFFField* _TIFFCreateAnonField(TIFF *, uint32, TIFFDataType); - -#if defined(__cplusplus) -} -#endif -#endif /* _TIFFDIR_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dirinfo.c b/tiff/libtiff/tif_dirinfo.c deleted file mode 100755 index 7db4bdb..0000000 --- a/tiff/libtiff/tif_dirinfo.c +++ /dev/null @@ -1,959 +0,0 @@ -/* $Id: tif_dirinfo.c,v 1.121 2014-05-07 01:58:46 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Core Directory Tag Support. - */ -#include "tiffiop.h" -#include - -/* - * NOTE: THIS ARRAY IS ASSUMED TO BE SORTED BY TAG. - * - * NOTE: The second field (field_readcount) and third field (field_writecount) - * sometimes use the values TIFF_VARIABLE (-1), TIFF_VARIABLE2 (-3) - * and TIFF_SPP (-2). The macros should be used but would throw off - * the formatting of the code, so please interprete the -1, -2 and -3 - * values accordingly. - */ - -static TIFFFieldArray tiffFieldArray; -static TIFFFieldArray exifFieldArray; - -static TIFFField -tiffFields[] = { - { TIFFTAG_SUBFILETYPE, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_SUBFILETYPE, 1, 0, "SubfileType", NULL }, - { TIFFTAG_OSUBFILETYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_SUBFILETYPE, 1, 0, "OldSubfileType", NULL }, - { TIFFTAG_IMAGEWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDIMENSIONS, 0, 0, "ImageWidth", NULL }, - { TIFFTAG_IMAGELENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDIMENSIONS, 1, 0, "ImageLength", NULL }, - { TIFFTAG_BITSPERSAMPLE, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_BITSPERSAMPLE, 0, 0, "BitsPerSample", NULL }, - { TIFFTAG_COMPRESSION, -1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_COMPRESSION, 0, 0, "Compression", NULL }, - { TIFFTAG_PHOTOMETRIC, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_PHOTOMETRIC, 0, 0, "PhotometricInterpretation", NULL }, - { TIFFTAG_THRESHHOLDING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_THRESHHOLDING, 1, 0, "Threshholding", NULL }, - { TIFFTAG_CELLWIDTH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "CellWidth", NULL }, - { TIFFTAG_CELLLENGTH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "CellLength", NULL }, - { TIFFTAG_FILLORDER, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_FILLORDER, 0, 0, "FillOrder", NULL }, - { TIFFTAG_DOCUMENTNAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DocumentName", NULL }, - { TIFFTAG_IMAGEDESCRIPTION, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageDescription", NULL }, - { TIFFTAG_MAKE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Make", NULL }, - { TIFFTAG_MODEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Model", NULL }, - { TIFFTAG_STRIPOFFSETS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPOFFSETS, 0, 0, "StripOffsets", NULL }, - { TIFFTAG_ORIENTATION, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_ORIENTATION, 0, 0, "Orientation", NULL }, - { TIFFTAG_SAMPLESPERPIXEL, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLESPERPIXEL, 0, 0, "SamplesPerPixel", NULL }, - { TIFFTAG_ROWSPERSTRIP, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_ROWSPERSTRIP, 0, 0, "RowsPerStrip", NULL }, - { TIFFTAG_STRIPBYTECOUNTS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPBYTECOUNTS, 0, 0, "StripByteCounts", NULL }, - { TIFFTAG_MINSAMPLEVALUE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_MINSAMPLEVALUE, 1, 0, "MinSampleValue", NULL }, - { TIFFTAG_MAXSAMPLEVALUE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_MAXSAMPLEVALUE, 1, 0, "MaxSampleValue", NULL }, - { TIFFTAG_XRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTION, 1, 0, "XResolution", NULL }, - { TIFFTAG_YRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTION, 1, 0, "YResolution", NULL }, - { TIFFTAG_PLANARCONFIG, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_PLANARCONFIG, 0, 0, "PlanarConfiguration", NULL }, - { TIFFTAG_PAGENAME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PageName", NULL }, - { TIFFTAG_XPOSITION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_POSITION, 1, 0, "XPosition", NULL }, - { TIFFTAG_YPOSITION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_POSITION, 1, 0, "YPosition", NULL }, - { TIFFTAG_FREEOFFSETS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 0, 0, "FreeOffsets", NULL }, - { TIFFTAG_FREEBYTECOUNTS, -1, -1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 0, 0, "FreeByteCounts", NULL }, - { TIFFTAG_GRAYRESPONSEUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "GrayResponseUnit", NULL }, - { TIFFTAG_GRAYRESPONSECURVE, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "GrayResponseCurve", NULL }, - { TIFFTAG_RESOLUTIONUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_RESOLUTIONUNIT, 1, 0, "ResolutionUnit", NULL }, - { TIFFTAG_PAGENUMBER, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_PAGENUMBER, 1, 0, "PageNumber", NULL }, - { TIFFTAG_COLORRESPONSEUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_IGNORE, 1, 0, "ColorResponseUnit", NULL }, - { TIFFTAG_TRANSFERFUNCTION, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_OTHER, TIFF_SETGET_UNDEFINED, FIELD_TRANSFERFUNCTION, 1, 0, "TransferFunction", NULL }, - { TIFFTAG_SOFTWARE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Software", NULL }, - { TIFFTAG_DATETIME, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTime", NULL }, - { TIFFTAG_ARTIST, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Artist", NULL }, - { TIFFTAG_HOSTCOMPUTER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "HostComputer", NULL }, - { TIFFTAG_WHITEPOINT, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "WhitePoint", NULL }, - { TIFFTAG_PRIMARYCHROMATICITIES, 6, 6, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PrimaryChromaticities", NULL }, - { TIFFTAG_COLORMAP, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_OTHER, TIFF_SETGET_UNDEFINED, FIELD_COLORMAP, 1, 0, "ColorMap", NULL }, - { TIFFTAG_HALFTONEHINTS, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_HALFTONEHINTS, 1, 0, "HalftoneHints", NULL }, - { TIFFTAG_TILEWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDIMENSIONS, 0, 0, "TileWidth", NULL }, - { TIFFTAG_TILELENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDIMENSIONS, 0, 0, "TileLength", NULL }, - { TIFFTAG_TILEOFFSETS, -1, 1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPOFFSETS, 0, 0, "TileOffsets", NULL }, - { TIFFTAG_TILEBYTECOUNTS, -1, 1, TIFF_LONG8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_STRIPBYTECOUNTS, 0, 0, "TileByteCounts", NULL }, - { TIFFTAG_SUBIFD, -1, -1, TIFF_IFD8, 0, TIFF_SETGET_C16_IFD8, TIFF_SETGET_UNDEFINED, FIELD_SUBIFD, 1, 1, "SubIFD", &tiffFieldArray }, - { TIFFTAG_INKSET, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "InkSet", NULL }, - { TIFFTAG_INKNAMES, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_C16_ASCII, TIFF_SETGET_UNDEFINED, FIELD_INKNAMES, 1, 1, "InkNames", NULL }, - { TIFFTAG_NUMBEROFINKS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "NumberOfInks", NULL }, - { TIFFTAG_DOTRANGE, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DotRange", NULL }, - { TIFFTAG_TARGETPRINTER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TargetPrinter", NULL }, - { TIFFTAG_EXTRASAMPLES, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_EXTRASAMPLES, 0, 1, "ExtraSamples", NULL }, - { TIFFTAG_SAMPLEFORMAT, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLEFORMAT, 0, 0, "SampleFormat", NULL }, - { TIFFTAG_SMINSAMPLEVALUE, -2, -1, TIFF_ANY, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_SMINSAMPLEVALUE, 1, 0, "SMinSampleValue", NULL }, - { TIFFTAG_SMAXSAMPLEVALUE, -2, -1, TIFF_ANY, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_SMAXSAMPLEVALUE, 1, 0, "SMaxSampleValue", NULL }, - { TIFFTAG_CLIPPATH, -1, -3, TIFF_BYTE, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ClipPath", NULL }, - { TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SLONG, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "XClipPathUnits", NULL }, - { TIFFTAG_XCLIPPATHUNITS, 1, 1, TIFF_SBYTE, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "XClipPathUnits", NULL }, - { TIFFTAG_YCLIPPATHUNITS, 1, 1, TIFF_SLONG, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "YClipPathUnits", NULL }, - { TIFFTAG_YCBCRCOEFFICIENTS, 3, 3, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "YCbCrCoefficients", NULL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_UINT16_PAIR, TIFF_SETGET_UNDEFINED, FIELD_YCBCRSUBSAMPLING, 0, 0, "YCbCrSubsampling", NULL }, - { TIFFTAG_YCBCRPOSITIONING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_YCBCRPOSITIONING, 0, 0, "YCbCrPositioning", NULL }, - { TIFFTAG_REFERENCEBLACKWHITE, 6, 6, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_REFBLACKWHITE, 1, 0, "ReferenceBlackWhite", NULL }, - { TIFFTAG_XMLPACKET, -3, -3, TIFF_BYTE, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "XMLPacket", NULL }, - /* begin SGI tags */ - { TIFFTAG_MATTEING, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_EXTRASAMPLES, 0, 0, "Matteing", NULL }, - { TIFFTAG_DATATYPE, -2, -1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_SAMPLEFORMAT, 0, 0, "DataType", NULL }, - { TIFFTAG_IMAGEDEPTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_IMAGEDEPTH, 0, 0, "ImageDepth", NULL }, - { TIFFTAG_TILEDEPTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_TILEDEPTH, 0, 0, "TileDepth", NULL }, - /* end SGI tags */ - /* begin Pixar tags */ - { TIFFTAG_PIXAR_IMAGEFULLWIDTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageFullWidth", NULL }, - { TIFFTAG_PIXAR_IMAGEFULLLENGTH, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageFullLength", NULL }, - { TIFFTAG_PIXAR_TEXTUREFORMAT, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TextureFormat", NULL }, - { TIFFTAG_PIXAR_WRAPMODES, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "TextureWrapModes", NULL }, - { TIFFTAG_PIXAR_FOVCOT, 1, 1, TIFF_FLOAT, 0, TIFF_SETGET_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FieldOfViewCotangent", NULL }, - { TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN, 16, 16, TIFF_FLOAT, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MatrixWorldToScreen", NULL }, - { TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA, 16, 16, TIFF_FLOAT, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MatrixWorldToCamera", NULL }, - { TIFFTAG_CFAREPEATPATTERNDIM, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CFARepeatPatternDim", NULL }, - { TIFFTAG_CFAPATTERN, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CFAPattern" , NULL}, - { TIFFTAG_COPYRIGHT, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Copyright", NULL }, - /* end Pixar tags */ - { TIFFTAG_RICHTIFFIPTC, -3, -3, TIFF_LONG, 0, TIFF_SETGET_C32_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "RichTIFFIPTC", NULL }, - { TIFFTAG_PHOTOSHOP, -3, -3, TIFF_BYTE, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "Photoshop", NULL }, - { TIFFTAG_EXIFIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "EXIFIFDOffset", &exifFieldArray }, - { TIFFTAG_ICCPROFILE, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ICC Profile", NULL }, - { TIFFTAG_GPSIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "GPSIFDOffset", NULL }, - { TIFFTAG_FAXRECVPARAMS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_CUSTOM, TRUE, FALSE, "FaxRecvParams", NULL }, - { TIFFTAG_FAXSUBADDRESS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_ASCII, FIELD_CUSTOM, TRUE, FALSE, "FaxSubAddress", NULL }, - { TIFFTAG_FAXRECVTIME, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_CUSTOM, TRUE, FALSE, "FaxRecvTime", NULL }, - { TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_ASCII, FIELD_CUSTOM, TRUE, FALSE, "FaxDcs", NULL }, - { TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "StoNits", NULL }, - { TIFFTAG_INTEROPERABILITYIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "InteroperabilityIFDOffset", NULL }, - /* begin DNG tags */ - { TIFFTAG_DNGVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DNGVersion", NULL }, - { TIFFTAG_DNGBACKWARDVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DNGBackwardVersion", NULL }, - { TIFFTAG_UNIQUECAMERAMODEL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "UniqueCameraModel", NULL }, - { TIFFTAG_LOCALIZEDCAMERAMODEL, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "LocalizedCameraModel", NULL }, - { TIFFTAG_CFAPLANECOLOR, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "CFAPlaneColor", NULL }, - { TIFFTAG_CFALAYOUT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CFALayout", NULL }, - { TIFFTAG_LINEARIZATIONTABLE, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "LinearizationTable", NULL }, - { TIFFTAG_BLACKLEVELREPEATDIM, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BlackLevelRepeatDim", NULL }, - { TIFFTAG_BLACKLEVEL, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "BlackLevel", NULL }, - { TIFFTAG_BLACKLEVELDELTAH, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "BlackLevelDeltaH", NULL }, - { TIFFTAG_BLACKLEVELDELTAV, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "BlackLevelDeltaV", NULL }, - { TIFFTAG_WHITELEVEL, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "WhiteLevel", NULL }, - { TIFFTAG_DEFAULTSCALE, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DefaultScale", NULL }, - { TIFFTAG_BESTQUALITYSCALE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BestQualityScale", NULL }, - { TIFFTAG_DEFAULTCROPORIGIN, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DefaultCropOrigin", NULL }, - { TIFFTAG_DEFAULTCROPSIZE, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DefaultCropSize", NULL }, - { TIFFTAG_COLORMATRIX1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ColorMatrix1", NULL }, - { TIFFTAG_COLORMATRIX2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ColorMatrix2", NULL }, - { TIFFTAG_CAMERACALIBRATION1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "CameraCalibration1", NULL }, - { TIFFTAG_CAMERACALIBRATION2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "CameraCalibration2", NULL }, - { TIFFTAG_REDUCTIONMATRIX1, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ReductionMatrix1", NULL }, - { TIFFTAG_REDUCTIONMATRIX2, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ReductionMatrix2", NULL }, - { TIFFTAG_ANALOGBALANCE, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "AnalogBalance", NULL }, - { TIFFTAG_ASSHOTNEUTRAL, -1, -1, TIFF_RATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "AsShotNeutral", NULL }, - { TIFFTAG_ASSHOTWHITEXY, 2, 2, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "AsShotWhiteXY", NULL }, - { TIFFTAG_BASELINEEXPOSURE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BaselineExposure", NULL }, - { TIFFTAG_BASELINENOISE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BaselineNoise", NULL }, - { TIFFTAG_BASELINESHARPNESS, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BaselineSharpness", NULL }, - { TIFFTAG_BAYERGREENSPLIT, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "BayerGreenSplit", NULL }, - { TIFFTAG_LINEARRESPONSELIMIT, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "LinearResponseLimit", NULL }, - { TIFFTAG_CAMERASERIALNUMBER, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CameraSerialNumber", NULL }, - { TIFFTAG_LENSINFO, 4, 4, TIFF_RATIONAL, 0, TIFF_SETGET_C0_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "LensInfo", NULL }, - { TIFFTAG_CHROMABLURRADIUS, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ChromaBlurRadius", NULL }, - { TIFFTAG_ANTIALIASSTRENGTH, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "AntiAliasStrength", NULL }, - { TIFFTAG_SHADOWSCALE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ShadowScale", NULL }, - { TIFFTAG_DNGPRIVATEDATA, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "DNGPrivateData", NULL }, - { TIFFTAG_MAKERNOTESAFETY, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "MakerNoteSafety", NULL }, - { TIFFTAG_CALIBRATIONILLUMINANT1, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CalibrationIlluminant1", NULL }, - { TIFFTAG_CALIBRATIONILLUMINANT2, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CalibrationIlluminant2", NULL }, - { TIFFTAG_RAWDATAUNIQUEID, 16, 16, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "RawDataUniqueID", NULL }, - { TIFFTAG_ORIGINALRAWFILENAME, -1, -1, TIFF_BYTE, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OriginalRawFileName", NULL }, - { TIFFTAG_ORIGINALRAWFILEDATA, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "OriginalRawFileData", NULL }, - { TIFFTAG_ACTIVEAREA, 4, 4, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ActiveArea", NULL }, - { TIFFTAG_MASKEDAREAS, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "MaskedAreas", NULL }, - { TIFFTAG_ASSHOTICCPROFILE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "AsShotICCProfile", NULL }, - { TIFFTAG_ASSHOTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "AsShotPreProfileMatrix", NULL }, - { TIFFTAG_CURRENTICCPROFILE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "CurrentICCProfile", NULL }, - { TIFFTAG_CURRENTPREPROFILEMATRIX, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "CurrentPreProfileMatrix", NULL }, - { TIFFTAG_PERSAMPLE, 0, 0, TIFF_SHORT, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "PerSample", NULL}, - /* end DNG tags */ - /* begin TIFF/FX tags */ - { TIFFTAG_INDEXED, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "Indexed", NULL }, - { TIFFTAG_GLOBALPARAMETERSIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_IFD8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "GlobalParametersIFD", NULL }, - { TIFFTAG_PROFILETYPE, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ProfileType", NULL }, - { TIFFTAG_FAXPROFILE, 1, 1, TIFF_BYTE, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "FaxProfile", NULL }, - { TIFFTAG_CODINGMETHODS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "CodingMethods", NULL }, - { TIFFTAG_VERSIONYEAR, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "VersionYear", NULL }, - { TIFFTAG_MODENUMBER, 1, 1, TIFF_BYTE, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ModeNumber", NULL }, - { TIFFTAG_DECODE, -1, -1, TIFF_SRATIONAL, 0, TIFF_SETGET_C16_FLOAT, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "Decode", NULL }, - { TIFFTAG_IMAGEBASECOLOR, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "ImageBaseColor", NULL }, - { TIFFTAG_T82OPTIONS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "T82Options", NULL }, - { TIFFTAG_STRIPROWCOUNTS, -1, -1, TIFF_LONG, 0, TIFF_SETGET_C16_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 1, "StripRowCounts", NULL }, - { TIFFTAG_IMAGELAYER, 2, 2, TIFF_LONG, 0, TIFF_SETGET_C0_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "ImageLayer", NULL }, - /* end TIFF/FX tags */ - /* begin pseudo tags */ -}; - -static TIFFField -exifFields[] = { - { EXIFTAG_EXPOSURETIME, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureTime", NULL }, - { EXIFTAG_FNUMBER, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FNumber", NULL }, - { EXIFTAG_EXPOSUREPROGRAM, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureProgram", NULL }, - { EXIFTAG_SPECTRALSENSITIVITY, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SpectralSensitivity", NULL }, - { EXIFTAG_ISOSPEEDRATINGS, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "ISOSpeedRatings", NULL }, - { EXIFTAG_OECF, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "OptoelectricConversionFactor", NULL }, - { EXIFTAG_EXIFVERSION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExifVersion", NULL }, - { EXIFTAG_DATETIMEORIGINAL, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTimeOriginal", NULL }, - { EXIFTAG_DATETIMEDIGITIZED, 20, 20, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DateTimeDigitized", NULL }, - { EXIFTAG_COMPONENTSCONFIGURATION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ComponentsConfiguration", NULL }, - { EXIFTAG_COMPRESSEDBITSPERPIXEL, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CompressedBitsPerPixel", NULL }, - { EXIFTAG_SHUTTERSPEEDVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ShutterSpeedValue", NULL }, - { EXIFTAG_APERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ApertureValue", NULL }, - { EXIFTAG_BRIGHTNESSVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "BrightnessValue", NULL }, - { EXIFTAG_EXPOSUREBIASVALUE, 1, 1, TIFF_SRATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureBiasValue", NULL }, - { EXIFTAG_MAXAPERTUREVALUE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MaxApertureValue", NULL }, - { EXIFTAG_SUBJECTDISTANCE, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectDistance", NULL }, - { EXIFTAG_METERINGMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "MeteringMode", NULL }, - { EXIFTAG_LIGHTSOURCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "LightSource", NULL }, - { EXIFTAG_FLASH, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Flash", NULL }, - { EXIFTAG_FOCALLENGTH, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalLength", NULL }, - { EXIFTAG_SUBJECTAREA, -1, -1, TIFF_SHORT, 0, TIFF_SETGET_C16_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "SubjectArea", NULL }, - { EXIFTAG_MAKERNOTE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "MakerNote", NULL }, - { EXIFTAG_USERCOMMENT, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "UserComment", NULL }, - { EXIFTAG_SUBSECTIME, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTime", NULL }, - { EXIFTAG_SUBSECTIMEORIGINAL, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTimeOriginal", NULL }, - { EXIFTAG_SUBSECTIMEDIGITIZED, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubSecTimeDigitized", NULL }, - { EXIFTAG_FLASHPIXVERSION, 4, 4, TIFF_UNDEFINED, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FlashpixVersion", NULL }, - { EXIFTAG_COLORSPACE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ColorSpace", NULL }, - { EXIFTAG_PIXELXDIMENSION, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PixelXDimension", NULL }, - { EXIFTAG_PIXELYDIMENSION, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "PixelYDimension", NULL }, - { EXIFTAG_RELATEDSOUNDFILE, 13, 13, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "RelatedSoundFile", NULL }, - { EXIFTAG_FLASHENERGY, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FlashEnergy", NULL }, - { EXIFTAG_SPATIALFREQUENCYRESPONSE, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "SpatialFrequencyResponse", NULL }, - { EXIFTAG_FOCALPLANEXRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneXResolution", NULL }, - { EXIFTAG_FOCALPLANEYRESOLUTION, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneYResolution", NULL }, - { EXIFTAG_FOCALPLANERESOLUTIONUNIT, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalPlaneResolutionUnit", NULL }, - { EXIFTAG_SUBJECTLOCATION, 2, 2, TIFF_SHORT, 0, TIFF_SETGET_C0_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectLocation", NULL }, - { EXIFTAG_EXPOSUREINDEX, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureIndex", NULL }, - { EXIFTAG_SENSINGMETHOD, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SensingMethod", NULL }, - { EXIFTAG_FILESOURCE, 1, 1, TIFF_UNDEFINED, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FileSource", NULL }, - { EXIFTAG_SCENETYPE, 1, 1, TIFF_UNDEFINED, 0, TIFF_SETGET_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SceneType", NULL }, - { EXIFTAG_CFAPATTERN, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "CFAPattern", NULL }, - { EXIFTAG_CUSTOMRENDERED, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "CustomRendered", NULL }, - { EXIFTAG_EXPOSUREMODE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ExposureMode", NULL }, - { EXIFTAG_WHITEBALANCE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "WhiteBalance", NULL }, - { EXIFTAG_DIGITALZOOMRATIO, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "DigitalZoomRatio", NULL }, - { EXIFTAG_FOCALLENGTHIN35MMFILM, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "FocalLengthIn35mmFilm", NULL }, - { EXIFTAG_SCENECAPTURETYPE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SceneCaptureType", NULL }, - { EXIFTAG_GAINCONTROL, 1, 1, TIFF_RATIONAL, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "GainControl", NULL }, - { EXIFTAG_CONTRAST, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Contrast", NULL }, - { EXIFTAG_SATURATION, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Saturation", NULL }, - { EXIFTAG_SHARPNESS, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Sharpness", NULL }, - { EXIFTAG_DEVICESETTINGDESCRIPTION, -1, -1, TIFF_UNDEFINED, 0, TIFF_SETGET_C16_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 1, "DeviceSettingDescription", NULL }, - { EXIFTAG_SUBJECTDISTANCERANGE, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "SubjectDistanceRange", NULL }, - { EXIFTAG_IMAGEUNIQUEID, 33, 33, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "ImageUniqueID", NULL } -}; - -static TIFFFieldArray -tiffFieldArray = { tfiatImage, 0, TIFFArrayCount(tiffFields), tiffFields }; -static TIFFFieldArray -exifFieldArray = { tfiatExif, 0, TIFFArrayCount(exifFields), exifFields }; - -/* - * We have our own local lfind() equivelent to avoid subtle differences - * in types passed to lfind() on different systems. - */ - -static void * -td_lfind(const void *key, const void *base, size_t *nmemb, size_t size, - int(*compar)(const void *, const void *)) -{ - char *element, *end; - - end = (char *)base + *nmemb * size; - for (element = (char *)base; element < end; element += size) - if (!compar(key, element)) /* key found */ - return element; - - return NULL; -} - -const TIFFFieldArray* -_TIFFGetFields(void) -{ - return(&tiffFieldArray); -} - -const TIFFFieldArray* -_TIFFGetExifFields(void) -{ - return(&exifFieldArray); -} - -void -_TIFFSetupFields(TIFF* tif, const TIFFFieldArray* fieldarray) -{ - if (tif->tif_fields && tif->tif_nfields > 0) { - uint32 i; - - for (i = 0; i < tif->tif_nfields; i++) { - TIFFField *fld = tif->tif_fields[i]; - if (fld->field_bit == FIELD_CUSTOM && - strncmp("Tag ", fld->field_name, 4) == 0) { - _TIFFfree(fld->field_name); - _TIFFfree(fld); - } - } - - _TIFFfree(tif->tif_fields); - tif->tif_fields = NULL; - tif->tif_nfields = 0; - } - if (!_TIFFMergeFields(tif, fieldarray->fields, fieldarray->count)) { - TIFFErrorExt(tif->tif_clientdata, "_TIFFSetupFields", - "Setting up field info failed"); - } -} - -static int -tagCompare(const void* a, const void* b) -{ - const TIFFField* ta = *(const TIFFField**) a; - const TIFFField* tb = *(const TIFFField**) b; - /* NB: be careful of return values for 16-bit platforms */ - if (ta->field_tag != tb->field_tag) - return (int)ta->field_tag - (int)tb->field_tag; - else - return (ta->field_type == TIFF_ANY) ? - 0 : ((int)tb->field_type - (int)ta->field_type); -} - -static int -tagNameCompare(const void* a, const void* b) -{ - const TIFFField* ta = *(const TIFFField**) a; - const TIFFField* tb = *(const TIFFField**) b; - int ret = strcmp(ta->field_name, tb->field_name); - - if (ret) - return ret; - else - return (ta->field_type == TIFF_ANY) ? - 0 : ((int)tb->field_type - (int)ta->field_type); -} - -int -_TIFFMergeFields(TIFF* tif, const TIFFField info[], uint32 n) -{ - static const char module[] = "_TIFFMergeFields"; - static const char reason[] = "for fields array"; - /* TIFFField** tp; */ - uint32 i; - - tif->tif_foundfield = NULL; - - if (tif->tif_fields && tif->tif_nfields > 0) { - tif->tif_fields = (TIFFField**) - _TIFFCheckRealloc(tif, tif->tif_fields, - (tif->tif_nfields + n), - sizeof(TIFFField *), reason); - } else { - tif->tif_fields = (TIFFField **) - _TIFFCheckMalloc(tif, n, sizeof(TIFFField *), - reason); - } - if (!tif->tif_fields) { - TIFFErrorExt(tif->tif_clientdata, module, - "Failed to allocate fields array"); - return 0; - } - - /* tp = tif->tif_fields + tif->tif_nfields; */ - for (i = 0; i < n; i++) { - const TIFFField *fip = - TIFFFindField(tif, info[i].field_tag, TIFF_ANY); - - /* only add definitions that aren't already present */ - if (!fip) { - tif->tif_fields[tif->tif_nfields] = (TIFFField *) (info+i); - tif->tif_nfields++; - } - } - - /* Sort the field info by tag number */ - qsort(tif->tif_fields, tif->tif_nfields, - sizeof(TIFFField *), tagCompare); - - return n; -} - -void -_TIFFPrintFieldInfo(TIFF* tif, FILE* fd) -{ - uint32 i; - - fprintf(fd, "%s: \n", tif->tif_name); - for (i = 0; i < tif->tif_nfields; i++) { - const TIFFField* fip = tif->tif_fields[i]; - fprintf(fd, "field[%2d] %5lu, %2d, %2d, %d, %2d, %5s, %5s, %s\n" - , (int)i - , (unsigned long) fip->field_tag - , fip->field_readcount, fip->field_writecount - , fip->field_type - , fip->field_bit - , fip->field_oktochange ? "TRUE" : "FALSE" - , fip->field_passcount ? "TRUE" : "FALSE" - , fip->field_name - ); - } -} - -/* - * Return size of TIFFDataType in bytes - */ -int -TIFFDataWidth(TIFFDataType type) -{ - switch(type) - { - case 0: /* nothing */ - case TIFF_BYTE: - case TIFF_ASCII: - case TIFF_SBYTE: - case TIFF_UNDEFINED: - return 1; - case TIFF_SHORT: - case TIFF_SSHORT: - return 2; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - case TIFF_IFD: - return 4; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_DOUBLE: - case TIFF_LONG8: - case TIFF_SLONG8: - case TIFF_IFD8: - return 8; - default: - return 0; /* will return 0 for unknown types */ - } -} - -/* - * Return size of TIFFDataType in bytes. - * - * XXX: We need a separate function to determine the space needed - * to store the value. For TIFF_RATIONAL values TIFFDataWidth() returns 8, - * but we use 4-byte float to represent rationals. - */ -int -_TIFFDataSize(TIFFDataType type) -{ - switch (type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_ASCII: - case TIFF_UNDEFINED: - return 1; - case TIFF_SHORT: - case TIFF_SSHORT: - return 2; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - case TIFF_IFD: - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - return 4; - case TIFF_DOUBLE: - case TIFF_LONG8: - case TIFF_SLONG8: - case TIFF_IFD8: - return 8; - default: - return 0; - } -} - -const TIFFField* -TIFFFindField(TIFF* tif, uint32 tag, TIFFDataType dt) -{ - TIFFField key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0, 0, 0, NULL, NULL}; - TIFFField* pkey = &key; - const TIFFField **ret; - if (tif->tif_foundfield && tif->tif_foundfield->field_tag == tag && - (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) - return tif->tif_foundfield; - - /* If we are invoked with no field information, then just return. */ - if (!tif->tif_fields) - return NULL; - - /* NB: use sorted search (e.g. binary search) */ - - key.field_tag = tag; - key.field_type = dt; - - ret = (const TIFFField **) bsearch(&pkey, tif->tif_fields, - tif->tif_nfields, - sizeof(TIFFField *), tagCompare); - return tif->tif_foundfield = (ret ? *ret : NULL); -} - -const TIFFField* -_TIFFFindFieldByName(TIFF* tif, const char *field_name, TIFFDataType dt) -{ - TIFFField key = {0, 0, 0, TIFF_NOTYPE, 0, 0, 0, 0, 0, 0, NULL, NULL}; - TIFFField* pkey = &key; - const TIFFField **ret; - if (tif->tif_foundfield - && streq(tif->tif_foundfield->field_name, field_name) - && (dt == TIFF_ANY || dt == tif->tif_foundfield->field_type)) - return (tif->tif_foundfield); - - /* If we are invoked with no field information, then just return. */ - if (!tif->tif_fields) - return NULL; - - /* NB: use linear search since list is sorted by key#, not name */ - - key.field_name = (char *)field_name; - key.field_type = dt; - - ret = (const TIFFField **) - td_lfind(&pkey, tif->tif_fields, &tif->tif_nfields, - sizeof(TIFFField *), tagNameCompare); - - return tif->tif_foundfield = (ret ? *ret : NULL); -} - -const TIFFField* -TIFFFieldWithTag(TIFF* tif, uint32 tag) -{ - const TIFFField* fip = TIFFFindField(tif, tag, TIFF_ANY); - if (!fip) { - TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithTag", - "Internal error, unknown tag 0x%x", - (unsigned int) tag); - } - return (fip); -} - -const TIFFField* -TIFFFieldWithName(TIFF* tif, const char *field_name) -{ - const TIFFField* fip = - _TIFFFindFieldByName(tif, field_name, TIFF_ANY); - if (!fip) { - TIFFErrorExt(tif->tif_clientdata, "TIFFFieldWithName", - "Internal error, unknown tag %s", field_name); - } - return (fip); -} - -uint32 -TIFFFieldTag(const TIFFField* fip) -{ - return fip->field_tag; -} - -const char * -TIFFFieldName(const TIFFField* fip) -{ - return fip->field_name; -} - -TIFFDataType -TIFFFieldDataType(const TIFFField* fip) -{ - return fip->field_type; -} - -int -TIFFFieldPassCount(const TIFFField* fip) -{ - return fip->field_passcount; -} - -int -TIFFFieldReadCount(const TIFFField* fip) -{ - return fip->field_readcount; -} - -int -TIFFFieldWriteCount(const TIFFField* fip) -{ - return fip->field_writecount; -} - -const TIFFField* -_TIFFFindOrRegisterField(TIFF *tif, uint32 tag, TIFFDataType dt) - -{ - const TIFFField *fld; - - fld = TIFFFindField(tif, tag, dt); - if (fld == NULL) { - fld = _TIFFCreateAnonField(tif, tag, dt); - if (!_TIFFMergeFields(tif, fld, 1)) - return NULL; - } - - return fld; -} - -TIFFField* -_TIFFCreateAnonField(TIFF *tif, uint32 tag, TIFFDataType field_type) -{ - TIFFField *fld; - (void) tif; - - fld = (TIFFField *) _TIFFmalloc(sizeof (TIFFField)); - if (fld == NULL) - return NULL; - _TIFFmemset(fld, 0, sizeof(TIFFField)); - - fld->field_tag = tag; - fld->field_readcount = TIFF_VARIABLE2; - fld->field_writecount = TIFF_VARIABLE2; - fld->field_type = field_type; - fld->reserved = 0; - switch (field_type) - { - case TIFF_BYTE: - case TIFF_UNDEFINED: - fld->set_field_type = TIFF_SETGET_C32_UINT8; - fld->get_field_type = TIFF_SETGET_C32_UINT8; - break; - case TIFF_ASCII: - fld->set_field_type = TIFF_SETGET_C32_ASCII; - fld->get_field_type = TIFF_SETGET_C32_ASCII; - break; - case TIFF_SHORT: - fld->set_field_type = TIFF_SETGET_C32_UINT16; - fld->get_field_type = TIFF_SETGET_C32_UINT16; - break; - case TIFF_LONG: - fld->set_field_type = TIFF_SETGET_C32_UINT32; - fld->get_field_type = TIFF_SETGET_C32_UINT32; - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - fld->set_field_type = TIFF_SETGET_C32_FLOAT; - fld->get_field_type = TIFF_SETGET_C32_FLOAT; - break; - case TIFF_SBYTE: - fld->set_field_type = TIFF_SETGET_C32_SINT8; - fld->get_field_type = TIFF_SETGET_C32_SINT8; - break; - case TIFF_SSHORT: - fld->set_field_type = TIFF_SETGET_C32_SINT16; - fld->get_field_type = TIFF_SETGET_C32_SINT16; - break; - case TIFF_SLONG: - fld->set_field_type = TIFF_SETGET_C32_SINT32; - fld->get_field_type = TIFF_SETGET_C32_SINT32; - break; - case TIFF_DOUBLE: - fld->set_field_type = TIFF_SETGET_C32_DOUBLE; - fld->get_field_type = TIFF_SETGET_C32_DOUBLE; - break; - case TIFF_IFD: - case TIFF_IFD8: - fld->set_field_type = TIFF_SETGET_C32_IFD8; - fld->get_field_type = TIFF_SETGET_C32_IFD8; - break; - case TIFF_LONG8: - fld->set_field_type = TIFF_SETGET_C32_UINT64; - fld->get_field_type = TIFF_SETGET_C32_UINT64; - break; - case TIFF_SLONG8: - fld->set_field_type = TIFF_SETGET_C32_SINT64; - fld->get_field_type = TIFF_SETGET_C32_SINT64; - break; - default: - fld->set_field_type = TIFF_SETGET_UNDEFINED; - fld->get_field_type = TIFF_SETGET_UNDEFINED; - break; - } - fld->field_bit = FIELD_CUSTOM; - fld->field_oktochange = TRUE; - fld->field_passcount = TRUE; - fld->field_name = (char *) _TIFFmalloc(32); - if (fld->field_name == NULL) { - _TIFFfree(fld); - return NULL; - } - fld->field_subfields = NULL; - - /* - * note that this name is a special sign to TIFFClose() and - * _TIFFSetupFields() to free the field - */ - snprintf(fld->field_name, 32, "Tag %d", (int) tag); - - return fld; -} - -/**************************************************************************** - * O B S O L E T E D I N T E R F A C E S - * - * Don't use this stuff in your applications, it may be removed in the future - * libtiff versions. - ****************************************************************************/ - -static TIFFSetGetFieldType -_TIFFSetGetType(TIFFDataType type, short count, unsigned char passcount) -{ - if (type == TIFF_ASCII && count == TIFF_VARIABLE && passcount == 0) - return TIFF_SETGET_ASCII; - - else if (count == 1 && passcount == 0) { - switch (type) - { - case TIFF_BYTE: - case TIFF_UNDEFINED: - return TIFF_SETGET_UINT8; - case TIFF_ASCII: - return TIFF_SETGET_ASCII; - case TIFF_SHORT: - return TIFF_SETGET_UINT16; - case TIFF_LONG: - return TIFF_SETGET_UINT32; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - return TIFF_SETGET_FLOAT; - case TIFF_SBYTE: - return TIFF_SETGET_SINT8; - case TIFF_SSHORT: - return TIFF_SETGET_SINT16; - case TIFF_SLONG: - return TIFF_SETGET_SINT32; - case TIFF_DOUBLE: - return TIFF_SETGET_DOUBLE; - case TIFF_IFD: - case TIFF_IFD8: - return TIFF_SETGET_IFD8; - case TIFF_LONG8: - return TIFF_SETGET_UINT64; - case TIFF_SLONG8: - return TIFF_SETGET_SINT64; - default: - return TIFF_SETGET_UNDEFINED; - } - } - - else if (count >= 1 && passcount == 0) { - switch (type) - { - case TIFF_BYTE: - case TIFF_UNDEFINED: - return TIFF_SETGET_C0_UINT8; - case TIFF_ASCII: - return TIFF_SETGET_C0_ASCII; - case TIFF_SHORT: - return TIFF_SETGET_C0_UINT16; - case TIFF_LONG: - return TIFF_SETGET_C0_UINT32; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - return TIFF_SETGET_C0_FLOAT; - case TIFF_SBYTE: - return TIFF_SETGET_C0_SINT8; - case TIFF_SSHORT: - return TIFF_SETGET_C0_SINT16; - case TIFF_SLONG: - return TIFF_SETGET_C0_SINT32; - case TIFF_DOUBLE: - return TIFF_SETGET_C0_DOUBLE; - case TIFF_IFD: - case TIFF_IFD8: - return TIFF_SETGET_C0_IFD8; - case TIFF_LONG8: - return TIFF_SETGET_C0_UINT64; - case TIFF_SLONG8: - return TIFF_SETGET_C0_SINT64; - default: - return TIFF_SETGET_UNDEFINED; - } - } - - else if (count == TIFF_VARIABLE && passcount == 1) { - switch (type) - { - case TIFF_BYTE: - case TIFF_UNDEFINED: - return TIFF_SETGET_C16_UINT8; - case TIFF_ASCII: - return TIFF_SETGET_C16_ASCII; - case TIFF_SHORT: - return TIFF_SETGET_C16_UINT16; - case TIFF_LONG: - return TIFF_SETGET_C16_UINT32; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - return TIFF_SETGET_C16_FLOAT; - case TIFF_SBYTE: - return TIFF_SETGET_C16_SINT8; - case TIFF_SSHORT: - return TIFF_SETGET_C16_SINT16; - case TIFF_SLONG: - return TIFF_SETGET_C16_SINT32; - case TIFF_DOUBLE: - return TIFF_SETGET_C16_DOUBLE; - case TIFF_IFD: - case TIFF_IFD8: - return TIFF_SETGET_C16_IFD8; - case TIFF_LONG8: - return TIFF_SETGET_C16_UINT64; - case TIFF_SLONG8: - return TIFF_SETGET_C16_SINT64; - default: - return TIFF_SETGET_UNDEFINED; - } - } - - else if (count == TIFF_VARIABLE2 && passcount == 1) { - switch (type) - { - case TIFF_BYTE: - case TIFF_UNDEFINED: - return TIFF_SETGET_C32_UINT8; - case TIFF_ASCII: - return TIFF_SETGET_C32_ASCII; - case TIFF_SHORT: - return TIFF_SETGET_C32_UINT16; - case TIFF_LONG: - return TIFF_SETGET_C32_UINT32; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - return TIFF_SETGET_C32_FLOAT; - case TIFF_SBYTE: - return TIFF_SETGET_C32_SINT8; - case TIFF_SSHORT: - return TIFF_SETGET_C32_SINT16; - case TIFF_SLONG: - return TIFF_SETGET_C32_SINT32; - case TIFF_DOUBLE: - return TIFF_SETGET_C32_DOUBLE; - case TIFF_IFD: - case TIFF_IFD8: - return TIFF_SETGET_C32_IFD8; - case TIFF_LONG8: - return TIFF_SETGET_C32_UINT64; - case TIFF_SLONG8: - return TIFF_SETGET_C32_SINT64; - default: - return TIFF_SETGET_UNDEFINED; - } - } - - return TIFF_SETGET_UNDEFINED; -} - -int -TIFFMergeFieldInfo(TIFF* tif, const TIFFFieldInfo info[], uint32 n) -{ - static const char module[] = "TIFFMergeFieldInfo"; - static const char reason[] = "for fields array"; - TIFFField *tp; - size_t nfields; - uint32 i; - - if (tif->tif_nfieldscompat > 0) { - tif->tif_fieldscompat = (TIFFFieldArray *) - _TIFFCheckRealloc(tif, tif->tif_fieldscompat, - tif->tif_nfieldscompat + 1, - sizeof(TIFFFieldArray), reason); - } else { - tif->tif_fieldscompat = (TIFFFieldArray *) - _TIFFCheckMalloc(tif, 1, sizeof(TIFFFieldArray), - reason); - } - if (!tif->tif_fieldscompat) { - TIFFErrorExt(tif->tif_clientdata, module, - "Failed to allocate fields array"); - return -1; - } - nfields = tif->tif_nfieldscompat++; - - tif->tif_fieldscompat[nfields].type = tfiatOther; - tif->tif_fieldscompat[nfields].allocated_size = n; - tif->tif_fieldscompat[nfields].count = n; - tif->tif_fieldscompat[nfields].fields = - (TIFFField *)_TIFFCheckMalloc(tif, n, sizeof(TIFFField), - reason); - if (!tif->tif_fieldscompat[nfields].fields) { - TIFFErrorExt(tif->tif_clientdata, module, - "Failed to allocate fields array"); - return -1; - } - - tp = tif->tif_fieldscompat[nfields].fields; - for (i = 0; i < n; i++) { - tp->field_tag = info[i].field_tag; - tp->field_readcount = info[i].field_readcount; - tp->field_writecount = info[i].field_writecount; - tp->field_type = info[i].field_type; - tp->reserved = 0; - tp->set_field_type = - _TIFFSetGetType(info[i].field_type, - info[i].field_readcount, - info[i].field_passcount); - tp->get_field_type = - _TIFFSetGetType(info[i].field_type, - info[i].field_readcount, - info[i].field_passcount); - tp->field_bit = info[i].field_bit; - tp->field_oktochange = info[i].field_oktochange; - tp->field_passcount = info[i].field_passcount; - tp->field_name = info[i].field_name; - tp->field_subfields = NULL; - tp++; - } - - if (!_TIFFMergeFields(tif, tif->tif_fieldscompat[nfields].fields, n)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Setting up field info failed"); - return -1; - } - - return 0; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dirread.c b/tiff/libtiff/tif_dirread.c deleted file mode 100755 index 7835a7c..0000000 --- a/tiff/libtiff/tif_dirread.c +++ /dev/null @@ -1,5640 +0,0 @@ -/* $Id: tif_dirread.c,v 1.183 2015-01-03 18:03:40 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Directory Read Support Routines. - */ - -/* Suggested pending improvements: - * - add a field 'ignore' to the TIFFDirEntry structure, to flag status, - * eliminating current use of the IGNORE value, and therefore eliminating - * current irrational behaviour on tags with tag id code 0 - * - add a field 'field_info' to the TIFFDirEntry structure, and set that with - * the pointer to the appropriate TIFFField structure early on in - * TIFFReadDirectory, so as to eliminate current possibly repetitive lookup. - */ - -#include "tiffiop.h" - -#define IGNORE 0 /* tag placeholder used below */ -#define FAILED_FII ((uint32) -1) - -#ifdef HAVE_IEEEFP -# define TIFFCvtIEEEFloatToNative(tif, n, fp) -# define TIFFCvtIEEEDoubleToNative(tif, n, dp) -#else -extern void TIFFCvtIEEEFloatToNative(TIFF*, uint32, float*); -extern void TIFFCvtIEEEDoubleToNative(TIFF*, uint32, double*); -#endif - -enum TIFFReadDirEntryErr { - TIFFReadDirEntryErrOk = 0, - TIFFReadDirEntryErrCount = 1, - TIFFReadDirEntryErrType = 2, - TIFFReadDirEntryErrIo = 3, - TIFFReadDirEntryErrRange = 4, - TIFFReadDirEntryErrPsdif = 5, - TIFFReadDirEntryErrSizesan = 6, - TIFFReadDirEntryErrAlloc = 7, -}; - -static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* direntry, float* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry* direntry, double* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* direntry, uint64* value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* direntry, uint32* count, uint32 desttypesize, void** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntry* direntry, uint8** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEntry* direntry, int8** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEntry* direntry, uint16** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEntry* direntry, int16** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntry* direntry, uint32** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEntry* direntry, int32** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEntry* direntry, int64** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEntry* direntry, float** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryDoubleArray(TIFF* tif, TIFFDirEntry* direntry, double** value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value); -#if 0 -static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFDirEntry* direntry, double* value); -#endif - -static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value); -static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8* value); -static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value); -static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int16* value); -static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value); -static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int32* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDirEntry* direntry, int64* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFDirEntry* direntry, double* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFFDirEntry* direntry, double* value); -static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, float* value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDirEntry* direntry, double* value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong(uint32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongLong8(uint64 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlongSlong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Sshort(int16 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong(int32 value); -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLong8Slong8(int64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSlong8Long8(uint64 value); - -static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF* tif, uint64 offset, tmsize_t size, void* dest); -static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, const char* module, const char* tagname, int recover); - -static void TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dircount); -static TIFFDirEntry* TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, uint16 dircount, uint16 tagid); -static void TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii); - -static int EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount); -static void MissingRequired(TIFF*, const char*); -static int TIFFCheckDirOffset(TIFF* tif, uint64 diroff); -static int CheckDirCount(TIFF*, TIFFDirEntry*, uint32); -static uint16 TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir, uint64* nextdiroff); -static int TIFFFetchNormalTag(TIFF*, TIFFDirEntry*, int recover); -static int TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp); -static int TIFFFetchSubjectDistance(TIFF*, TIFFDirEntry*); -static void ChopUpSingleUncompressedStrip(TIFF*); -static uint64 TIFFReadUInt64(const uint8 *value); - -typedef union _UInt64Aligned_t -{ - double d; - uint64 l; - uint32 i[2]; - uint16 s[4]; - uint8 c[8]; -} UInt64Aligned_t; - -/* - Unaligned safe copy of a uint64 value from an octet array. -*/ -static uint64 TIFFReadUInt64(const uint8 *value) -{ - UInt64Aligned_t result; - - result.c[0]=value[0]; - result.c[1]=value[1]; - result.c[2]=value[2]; - result.c[3]=value[3]; - result.c[4]=value[4]; - result.c[5]=value[5]; - result.c[6]=value[6]; - result.c[7]=value[7]; - - return result.l; -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - TIFFReadDirEntryCheckedByte(tif,direntry,value); - return(TIFFReadDirEntryErrOk); - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeByteSbyte(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - { - uint16 m; - TIFFReadDirEntryCheckedShort(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeByteShort(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeByteSshort(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeByteLong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeByteSlong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - { - uint64 m; - err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeByteLong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeByteSlong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint8)m; - return(TIFFReadDirEntryErrOk); - } - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8 m; - TIFFReadDirEntryCheckedByte(tif,direntry,&m); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeShortSbyte(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - TIFFReadDirEntryCheckedShort(tif,direntry,value); - return(TIFFReadDirEntryErrOk); - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeShortSshort(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeShortLong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeShortSlong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - { - uint64 m; - err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeShortLong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeShortSlong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint16)m; - return(TIFFReadDirEntryErrOk); - } - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8 m; - TIFFReadDirEntryCheckedByte(tif,direntry,&m); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLongSbyte(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - { - uint16 m; - TIFFReadDirEntryCheckedShort(tif,direntry,&m); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLongSshort(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - TIFFReadDirEntryCheckedLong(tif,direntry,value); - return(TIFFReadDirEntryErrOk); - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLongSlong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - { - uint64 m; - err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeLongLong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeLongSlong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint32)m; - return(TIFFReadDirEntryErrOk); - } - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8 m; - TIFFReadDirEntryCheckedByte(tif,direntry,&m); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLong8Sbyte(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - { - uint16 m; - TIFFReadDirEntryCheckedShort(tif,direntry,&m); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLong8Sshort(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - err=TIFFReadDirEntryCheckRangeLong8Slong(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - err=TIFFReadDirEntryCheckedLong8(tif,direntry,value); - return(err); - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - err=TIFFReadDirEntryCheckRangeLong8Slong8(m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryFloat(TIFF* tif, TIFFDirEntry* direntry, float* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8 m; - TIFFReadDirEntryCheckedByte(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - { - uint16 m; - TIFFReadDirEntryCheckedShort(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - { - uint64 m; - err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); -#if defined(__WIN32__) && (_MSC_VER < 1500) - /* - * XXX: MSVC 6.0 does not support conversion - * of 64-bit integers into floating point - * values. - */ - *value = _TIFFUInt64ToFloat(m); -#else - *value=(float)m; -#endif - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_RATIONAL: - { - double m; - err=TIFFReadDirEntryCheckedRational(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SRATIONAL: - { - double m; - err=TIFFReadDirEntryCheckedSrational(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_FLOAT: - TIFFReadDirEntryCheckedFloat(tif,direntry,value); - return(TIFFReadDirEntryErrOk); - case TIFF_DOUBLE: - { - double m; - err=TIFFReadDirEntryCheckedDouble(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(float)m; - return(TIFFReadDirEntryErrOk); - } - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryDouble(TIFF* tif, TIFFDirEntry* direntry, double* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8 m; - TIFFReadDirEntryCheckedByte(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SBYTE: - { - int8 m; - TIFFReadDirEntryCheckedSbyte(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SHORT: - { - uint16 m; - TIFFReadDirEntryCheckedShort(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - { - int16 m; - TIFFReadDirEntryCheckedSshort(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - { - int32 m; - TIFFReadDirEntryCheckedSlong(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - { - uint64 m; - err=TIFFReadDirEntryCheckedLong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); -#if defined(__WIN32__) && (_MSC_VER < 1500) - /* - * XXX: MSVC 6.0 does not support conversion - * of 64-bit integers into floating point - * values. - */ - *value = _TIFFUInt64ToDouble(m); -#else - *value = (double)m; -#endif - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - { - int64 m; - err=TIFFReadDirEntryCheckedSlong8(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_RATIONAL: - err=TIFFReadDirEntryCheckedRational(tif,direntry,value); - return(err); - case TIFF_SRATIONAL: - err=TIFFReadDirEntryCheckedSrational(tif,direntry,value); - return(err); - case TIFF_FLOAT: - { - float m; - TIFFReadDirEntryCheckedFloat(tif,direntry,&m); - *value=(double)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_DOUBLE: - err=TIFFReadDirEntryCheckedDouble(tif,direntry,value); - return(err); - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryIfd8(TIFF* tif, TIFFDirEntry* direntry, uint64* value) -{ - enum TIFFReadDirEntryErr err; - if (direntry->tdir_count!=1) - return(TIFFReadDirEntryErrCount); - switch (direntry->tdir_type) - { - case TIFF_LONG: - case TIFF_IFD: - { - uint32 m; - TIFFReadDirEntryCheckedLong(tif,direntry,&m); - *value=(uint64)m; - return(TIFFReadDirEntryErrOk); - } - case TIFF_LONG8: - case TIFF_IFD8: - err=TIFFReadDirEntryCheckedLong8(tif,direntry,value); - return(err); - default: - return(TIFFReadDirEntryErrType); - } -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryArray(TIFF* tif, TIFFDirEntry* direntry, uint32* count, uint32 desttypesize, void** value) -{ - int typesize; - uint32 datasize; - void* data; - typesize=TIFFDataWidth(direntry->tdir_type); - if ((direntry->tdir_count==0)||(typesize==0)) - { - *value=0; - return(TIFFReadDirEntryErrOk); - } - (void) desttypesize; - - /* - * As a sanity check, make sure we have no more than a 2GB tag array - * in either the current data type or the dest data type. This also - * avoids problems with overflow of tmsize_t on 32bit systems. - */ - if ((uint64)(2147483647/typesize)tdir_count) - return(TIFFReadDirEntryErrSizesan); - if ((uint64)(2147483647/desttypesize)tdir_count) - return(TIFFReadDirEntryErrSizesan); - - *count=(uint32)direntry->tdir_count; - datasize=(*count)*typesize; - assert((tmsize_t)datasize>0); - data=_TIFFCheckMalloc(tif, *count, typesize, "ReadDirEntryArray"); - if (data==0) - return(TIFFReadDirEntryErrAlloc); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (datasize<=4) - _TIFFmemcpy(data,&direntry->tdir_offset,datasize); - else - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,(uint64)offset,(tmsize_t)datasize,data); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - } - } - else - { - if (datasize<=8) - _TIFFmemcpy(data,&direntry->tdir_offset,datasize); - else - { - enum TIFFReadDirEntryErr err; - uint64 offset = direntry->tdir_offset.toff_long8; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(&offset); - err=TIFFReadDirEntryData(tif,offset,(tmsize_t)datasize,data); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - } - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryByteArray(TIFF* tif, TIFFDirEntry* direntry, uint8** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - uint8* data; - switch (direntry->tdir_type) - { - case TIFF_ASCII: - case TIFF_UNDEFINED: - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_ASCII: - case TIFF_UNDEFINED: - case TIFF_BYTE: - *value=(uint8*)origdata; - return(TIFFReadDirEntryErrOk); - case TIFF_SBYTE: - { - int8* m; - uint32 n; - m=(int8*)origdata; - for (n=0; ntdir_type) - { - case TIFF_SHORT: - { - uint16* ma; - uint8* mb; - uint32 n; - ma=(uint16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - err=TIFFReadDirEntryCheckRangeByteShort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - uint8* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - err=TIFFReadDirEntryCheckRangeByteSshort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - uint8* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - err=TIFFReadDirEntryCheckRangeByteLong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - uint8* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - err=TIFFReadDirEntryCheckRangeByteSlong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - uint8* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeByteLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - uint8* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeByteSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint8)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntrySbyteArray(TIFF* tif, TIFFDirEntry* direntry, int8** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - int8* data; - switch (direntry->tdir_type) - { - case TIFF_UNDEFINED: - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,1,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_UNDEFINED: - case TIFF_BYTE: - { - uint8* m; - uint32 n; - m=(uint8*)origdata; - for (n=0; ntdir_type) - { - case TIFF_SHORT: - { - uint16* ma; - int8* mb; - uint32 n; - ma=(uint16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - err=TIFFReadDirEntryCheckRangeSbyteShort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - int8* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - err=TIFFReadDirEntryCheckRangeSbyteSshort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - int8* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - err=TIFFReadDirEntryCheckRangeSbyteLong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - int8* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - err=TIFFReadDirEntryCheckRangeSbyteSlong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - int8* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeSbyteLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - int8* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeSbyteSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int8)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryShortArray(TIFF* tif, TIFFDirEntry* direntry, uint16** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - uint16* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_SHORT: - *value=(uint16*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfShort(*value,count); - return(TIFFReadDirEntryErrOk); - case TIFF_SSHORT: - { - int16* m; - uint32 n; - m=(int16*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)m); - err=TIFFReadDirEntryCheckRangeShortSshort(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(uint16*)origdata; - return(TIFFReadDirEntryErrOk); - } - } - data=(uint16*)_TIFFmalloc(count*2); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - uint16* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - err=TIFFReadDirEntryCheckRangeShortLong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint16)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - uint16* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - err=TIFFReadDirEntryCheckRangeShortSlong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint16)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - uint16* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeShortLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint16)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - uint16* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeShortSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint16)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntrySshortArray(TIFF* tif, TIFFDirEntry* direntry, int16** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - int16* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,2,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_SHORT: - { - uint16* m; - uint32 n; - m=(uint16*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(m); - err=TIFFReadDirEntryCheckRangeSshortShort(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(int16*)origdata; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SSHORT: - *value=(int16*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfShort((uint16*)(*value),count); - return(TIFFReadDirEntryErrOk); - } - data=(int16*)_TIFFmalloc(count*2); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - int16* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - err=TIFFReadDirEntryCheckRangeSshortLong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int16)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - int16* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - err=TIFFReadDirEntryCheckRangeSshortSlong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int16)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - int16* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeSshortLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int16)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - int16* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeSshortSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int16)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryLongArray(TIFF* tif, TIFFDirEntry* direntry, uint32** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - uint32* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_LONG: - *value=(uint32*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(*value,count); - return(TIFFReadDirEntryErrOk); - case TIFF_SLONG: - { - int32* m; - uint32 n; - m=(int32*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)m); - err=TIFFReadDirEntryCheckRangeLongSlong(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(uint32*)origdata; - return(TIFFReadDirEntryErrOk); - } - } - data=(uint32*)_TIFFmalloc(count*4); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - uint32* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(uint32)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - uint32* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - err=TIFFReadDirEntryCheckRangeLongSshort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint32)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - uint32* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeLongLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint32)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - uint32* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeLongSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint32)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntrySlongArray(TIFF* tif, TIFFDirEntry* direntry, int32** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - int32* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_LONG: - { - uint32* m; - uint32 n; - m=(uint32*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)m); - err=TIFFReadDirEntryCheckRangeSlongLong(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(int32*)origdata; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG: - *value=(int32*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong((uint32*)(*value),count); - return(TIFFReadDirEntryErrOk); - } - data=(int32*)_TIFFmalloc(count*4); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - int32* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(int32)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - int32* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - *mb++=(int32)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - int32* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); - err=TIFFReadDirEntryCheckRangeSlongLong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int32)(*ma++); - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - int32* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - err=TIFFReadDirEntryCheckRangeSlongSlong8(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(int32)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryLong8Array(TIFF* tif, TIFFDirEntry* direntry, uint64** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - uint64* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_LONG8: - *value=(uint64*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8(*value,count); - return(TIFFReadDirEntryErrOk); - case TIFF_SLONG8: - { - int64* m; - uint32 n; - m=(int64*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)m); - err=TIFFReadDirEntryCheckRangeLong8Slong8(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(uint64*)origdata; - return(TIFFReadDirEntryErrOk); - } - } - data=(uint64*)_TIFFmalloc(count*8); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - uint64* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(uint64)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - uint64* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - err=TIFFReadDirEntryCheckRangeLong8Sshort(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint64)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - uint64* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - *mb++=(uint64)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - uint64* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - err=TIFFReadDirEntryCheckRangeLong8Slong(*ma); - if (err!=TIFFReadDirEntryErrOk) - break; - *mb++=(uint64)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntrySlong8Array(TIFF* tif, TIFFDirEntry* direntry, int64** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - int64* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_LONG8: - { - uint64* m; - uint32 n; - m=(uint64*)origdata; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(m); - err=TIFFReadDirEntryCheckRangeSlong8Long8(*m); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(origdata); - return(err); - } - m++; - } - *value=(int64*)origdata; - return(TIFFReadDirEntryErrOk); - } - case TIFF_SLONG8: - *value=(int64*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8((uint64*)(*value),count); - return(TIFFReadDirEntryErrOk); - } - data=(int64*)_TIFFmalloc(count*8); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - int64* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(int64)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - int64* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - *mb++=(int64)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - int64* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - *mb++=(int64)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - int64* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - *mb++=(int64)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEntry* direntry, float** value) -{ - enum TIFFReadDirEntryErr err; - uint32 count; - void* origdata; - float* data; - switch (direntry->tdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - case TIFF_DOUBLE: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,4,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_FLOAT: - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong((uint32*)origdata,count); - TIFFCvtIEEEDoubleToNative(tif,count,(float*)origdata); - *value=(float*)origdata; - return(TIFFReadDirEntryErrOk); - } - data=(float*)_TIFFmalloc(count*sizeof(float)); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - float* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(float)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - float* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - *mb++=(float)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - float* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - *mb++=(float)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - float* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - *mb++=(float)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - float* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); -#if defined(__WIN32__) && (_MSC_VER < 1500) - /* - * XXX: MSVC 6.0 does not support - * conversion of 64-bit integers into - * floating point values. - */ - *mb++ = _TIFFUInt64ToFloat(*ma++); -#else - *mb++ = (float)(*ma++); -#endif - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - float* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - *mb++=(float)(*ma++); - } - } - break; - case TIFF_RATIONAL: - { - uint32* ma; - uint32 maa; - uint32 mab; - float* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - maa=*ma++; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - mab=*ma++; - if (mab==0) - *mb++=0.0; - else - *mb++=(float)maa/(float)mab; - } - } - break; - case TIFF_SRATIONAL: - { - uint32* ma; - int32 maa; - uint32 mab; - float* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - maa=*(int32*)ma; - ma++; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - mab=*ma++; - if (mab==0) - *mb++=0.0; - else - *mb++=(float)maa/(float)mab; - } - } - break; - case TIFF_DOUBLE: - { - double* ma; - float* mb; - uint32 n; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8((uint64*)origdata,count); - TIFFCvtIEEEDoubleToNative(tif,count,(double*)origdata); - ma=(double*)origdata; - mb=data; - for (n=0; ntdir_type) - { - case TIFF_BYTE: - case TIFF_SBYTE: - case TIFF_SHORT: - case TIFF_SSHORT: - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_LONG8: - case TIFF_SLONG8: - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - case TIFF_DOUBLE: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_DOUBLE: - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8((uint64*)origdata,count); - TIFFCvtIEEEDoubleToNative(tif,count,(double*)origdata); - *value=(double*)origdata; - return(TIFFReadDirEntryErrOk); - } - data=(double*)_TIFFmalloc(count*sizeof(double)); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_BYTE: - { - uint8* ma; - double* mb; - uint32 n; - ma=(uint8*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort(ma); - *mb++=(double)(*ma++); - } - } - break; - case TIFF_SSHORT: - { - int16* ma; - double* mb; - uint32 n; - ma=(int16*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - *mb++=(double)(*ma++); - } - } - break; - case TIFF_LONG: - { - uint32* ma; - double* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - *mb++=(double)(*ma++); - } - } - break; - case TIFF_SLONG: - { - int32* ma; - double* mb; - uint32 n; - ma=(int32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - *mb++=(double)(*ma++); - } - } - break; - case TIFF_LONG8: - { - uint64* ma; - double* mb; - uint32 n; - ma=(uint64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8(ma); -#if defined(__WIN32__) && (_MSC_VER < 1500) - /* - * XXX: MSVC 6.0 does not support - * conversion of 64-bit integers into - * floating point values. - */ - *mb++ = _TIFFUInt64ToDouble(*ma++); -#else - *mb++ = (double)(*ma++); -#endif - } - } - break; - case TIFF_SLONG8: - { - int64* ma; - double* mb; - uint32 n; - ma=(int64*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - *mb++=(double)(*ma++); - } - } - break; - case TIFF_RATIONAL: - { - uint32* ma; - uint32 maa; - uint32 mab; - double* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - maa=*ma++; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - mab=*ma++; - if (mab==0) - *mb++=0.0; - else - *mb++=(double)maa/(double)mab; - } - } - break; - case TIFF_SRATIONAL: - { - uint32* ma; - int32 maa; - uint32 mab; - double* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - maa=*(int32*)ma; - ma++; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - mab=*ma++; - if (mab==0) - *mb++=0.0; - else - *mb++=(double)maa/(double)mab; - } - } - break; - case TIFF_FLOAT: - { - float* ma; - double* mb; - uint32 n; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong((uint32*)origdata,count); - TIFFCvtIEEEFloatToNative(tif,count,(float*)origdata); - ma=(float*)origdata; - mb=data; - for (n=0; ntdir_type) - { - case TIFF_LONG: - case TIFF_LONG8: - case TIFF_IFD: - case TIFF_IFD8: - break; - default: - return(TIFFReadDirEntryErrType); - } - err=TIFFReadDirEntryArray(tif,direntry,&count,8,&origdata); - if ((err!=TIFFReadDirEntryErrOk)||(origdata==0)) - { - *value=0; - return(err); - } - switch (direntry->tdir_type) - { - case TIFF_LONG8: - case TIFF_IFD8: - *value=(uint64*)origdata; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8(*value,count); - return(TIFFReadDirEntryErrOk); - } - data=(uint64*)_TIFFmalloc(count*8); - if (data==0) - { - _TIFFfree(origdata); - return(TIFFReadDirEntryErrAlloc); - } - switch (direntry->tdir_type) - { - case TIFF_LONG: - case TIFF_IFD: - { - uint32* ma; - uint64* mb; - uint32 n; - ma=(uint32*)origdata; - mb=data; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabLong(ma); - *mb++=(uint64)(*ma++); - } - } - break; - } - _TIFFfree(origdata); - if (err!=TIFFReadDirEntryErrOk) - { - _TIFFfree(data); - return(err); - } - *value=data; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value) -{ - enum TIFFReadDirEntryErr err; - uint16* m; - uint16* na; - uint16 nb; - if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel) - return(TIFFReadDirEntryErrCount); - err=TIFFReadDirEntryShortArray(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - na=m; - nb=tif->tif_dir.td_samplesperpixel; - *value=*na++; - nb--; - while (nb>0) - { - if (*na++!=*value) - { - err=TIFFReadDirEntryErrPsdif; - break; - } - nb--; - } - _TIFFfree(m); - return(err); -} - -#if 0 -static enum TIFFReadDirEntryErr TIFFReadDirEntryPersampleDouble(TIFF* tif, TIFFDirEntry* direntry, double* value) -{ - enum TIFFReadDirEntryErr err; - double* m; - double* na; - uint16 nb; - if (direntry->tdir_count<(uint64)tif->tif_dir.td_samplesperpixel) - return(TIFFReadDirEntryErrCount); - err=TIFFReadDirEntryDoubleArray(tif,direntry,&m); - if (err!=TIFFReadDirEntryErrOk) - return(err); - na=m; - nb=tif->tif_dir.td_samplesperpixel; - *value=*na++; - nb--; - while (nb>0) - { - if (*na++!=*value) - { - err=TIFFReadDirEntryErrPsdif; - break; - } - nb--; - } - _TIFFfree(m); - return(err); -} -#endif - -static void TIFFReadDirEntryCheckedByte(TIFF* tif, TIFFDirEntry* direntry, uint8* value) -{ - (void) tif; - *value=*(uint8*)(&direntry->tdir_offset); -} - -static void TIFFReadDirEntryCheckedSbyte(TIFF* tif, TIFFDirEntry* direntry, int8* value) -{ - (void) tif; - *value=*(int8*)(&direntry->tdir_offset); -} - -static void TIFFReadDirEntryCheckedShort(TIFF* tif, TIFFDirEntry* direntry, uint16* value) -{ - *value = direntry->tdir_offset.toff_short; - /* *value=*(uint16*)(&direntry->tdir_offset); */ - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort(value); -} - -static void TIFFReadDirEntryCheckedSshort(TIFF* tif, TIFFDirEntry* direntry, int16* value) -{ - *value=*(int16*)(&direntry->tdir_offset); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)value); -} - -static void TIFFReadDirEntryCheckedLong(TIFF* tif, TIFFDirEntry* direntry, uint32* value) -{ - *value=*(uint32*)(&direntry->tdir_offset); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(value); -} - -static void TIFFReadDirEntryCheckedSlong(TIFF* tif, TIFFDirEntry* direntry, int32* value) -{ - *value=*(int32*)(&direntry->tdir_offset); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)value); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedLong8(TIFF* tif, TIFFDirEntry* direntry, uint64* value) -{ - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,value); - if (err!=TIFFReadDirEntryErrOk) - return(err); - } - else - *value = direntry->tdir_offset.toff_long8; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(value); - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSlong8(TIFF* tif, TIFFDirEntry* direntry, int64* value) -{ - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,value); - if (err!=TIFFReadDirEntryErrOk) - return(err); - } - else - *value=*(int64*)(&direntry->tdir_offset); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)value); - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFDirEntry* direntry, double* value) -{ - UInt64Aligned_t m; - - assert(sizeof(double)==8); - assert(sizeof(uint64)==8); - assert(sizeof(uint32)==4); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,m.i); - if (err!=TIFFReadDirEntryErrOk) - return(err); - } - else - m.l = direntry->tdir_offset.toff_long8; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(m.i,2); - if (m.i[0]==0) - *value=0.0; - else - *value=(double)m.i[0]/(double)m.i[1]; - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFFDirEntry* direntry, double* value) -{ - UInt64Aligned_t m; - assert(sizeof(double)==8); - assert(sizeof(uint64)==8); - assert(sizeof(int32)==4); - assert(sizeof(uint32)==4); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,m.i); - if (err!=TIFFReadDirEntryErrOk) - return(err); - } - else - m.l=direntry->tdir_offset.toff_long8; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(m.i,2); - if ((int32)m.i[0]==0) - *value=0.0; - else - *value=(double)((int32)m.i[0])/(double)m.i[1]; - return(TIFFReadDirEntryErrOk); -} - -static void TIFFReadDirEntryCheckedFloat(TIFF* tif, TIFFDirEntry* direntry, float* value) -{ - union - { - float f; - uint32 i; - } float_union; - assert(sizeof(float)==4); - assert(sizeof(uint32)==4); - assert(sizeof(float_union)==4); - float_union.i=*(uint32*)(&direntry->tdir_offset); - *value=float_union.f; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)value); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedDouble(TIFF* tif, TIFFDirEntry* direntry, double* value) -{ - assert(sizeof(double)==8); - assert(sizeof(uint64)==8); - assert(sizeof(UInt64Aligned_t)==8); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - enum TIFFReadDirEntryErr err; - uint32 offset = direntry->tdir_offset.toff_long; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,value); - if (err!=TIFFReadDirEntryErrOk) - return(err); - } - else - { - UInt64Aligned_t uint64_union; - uint64_union.l=direntry->tdir_offset.toff_long8; - *value=uint64_union.d; - } - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)value); - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSbyte(int8 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteShort(uint16 value) -{ - if (value>0xFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSshort(int16 value) -{ - if ((value<0)||(value>0xFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong(uint32 value) -{ - if (value>0xFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong(int32 value) -{ - if ((value<0)||(value>0xFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteLong8(uint64 value) -{ - if (value>0xFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeByteSlong8(int64 value) -{ - if ((value<0)||(value>0xFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteByte(uint8 value) -{ - if (value>0x7F) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteShort(uint16 value) -{ - if (value>0x7F) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSshort(int16 value) -{ - if ((value<-0x80)||(value>0x7F)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong(uint32 value) -{ - if (value>0x7F) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong(int32 value) -{ - if ((value<-0x80)||(value>0x7F)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteLong8(uint64 value) -{ - if (value>0x7F) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSbyteSlong8(int64 value) -{ - if ((value<-0x80)||(value>0x7F)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSbyte(int8 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSshort(int16 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong(uint32 value) -{ - if (value>0xFFFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong(int32 value) -{ - if ((value<0)||(value>0xFFFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortLong8(uint64 value) -{ - if (value>0xFFFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeShortSlong8(int64 value) -{ - if ((value<0)||(value>0xFFFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortShort(uint16 value) -{ - if (value>0x7FFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong(uint32 value) -{ - if (value>0x7FFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong(int32 value) -{ - if ((value<-0x8000)||(value>0x7FFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortLong8(uint64 value) -{ - if (value>0x7FFF) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeSshortSlong8(int64 value) -{ - if ((value<-0x8000)||(value>0x7FFF)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSbyte(int8 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSshort(int16 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckRangeLongSlong(int32 value) -{ - if (value<0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -/* - * Largest 32-bit unsigned integer value. - */ -#if defined(__WIN32__) && defined(_MSC_VER) -# define TIFF_UINT32_MAX 0xFFFFFFFFI64 -#else -# define TIFF_UINT32_MAX 0xFFFFFFFFLL -#endif - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLongLong8(uint64 value) -{ - if (value > TIFF_UINT32_MAX) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLongSlong8(int64 value) -{ - if ((value<0) || (value > TIFF_UINT32_MAX)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -#undef TIFF_UINT32_MAX - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeSlongLong(uint32 value) -{ - if (value > 0x7FFFFFFFUL) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeSlongLong8(uint64 value) -{ - if (value > 0x7FFFFFFFUL) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeSlongSlong8(int64 value) -{ - if ((value < 0L-0x80000000L) || (value > 0x7FFFFFFFL)) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLong8Sbyte(int8 value) -{ - if (value < 0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLong8Sshort(int16 value) -{ - if (value < 0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLong8Slong(int32 value) -{ - if (value < 0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeLong8Slong8(int64 value) -{ - if (value < 0) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -/* - * Largest 64-bit signed integer value. - */ -#if defined(__WIN32__) && defined(_MSC_VER) -# define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFI64 -#else -# define TIFF_INT64_MAX 0x7FFFFFFFFFFFFFFFLL -#endif - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryCheckRangeSlong8Long8(uint64 value) -{ - if (value > TIFF_INT64_MAX) - return(TIFFReadDirEntryErrRange); - else - return(TIFFReadDirEntryErrOk); -} - -#undef TIFF_INT64_MAX - -static enum TIFFReadDirEntryErr -TIFFReadDirEntryData(TIFF* tif, uint64 offset, tmsize_t size, void* dest) -{ - assert(size>0); - if (!isMapped(tif)) { - if (!SeekOK(tif,offset)) - return(TIFFReadDirEntryErrIo); - if (!ReadOK(tif,dest,size)) - return(TIFFReadDirEntryErrIo); - } else { - size_t ma,mb; - ma=(size_t)offset; - mb=ma+size; - if (((uint64)ma!=offset) - || (mb < ma) - || (mb - ma != (size_t) size) - || (mb < (size_t)size) - || (mb > (size_t)tif->tif_size) - ) - return(TIFFReadDirEntryErrIo); - _TIFFmemcpy(dest,tif->tif_base+ma,size); - } - return(TIFFReadDirEntryErrOk); -} - -static void TIFFReadDirEntryOutputErr(TIFF* tif, enum TIFFReadDirEntryErr err, const char* module, const char* tagname, int recover) -{ - if (!recover) { - switch (err) { - case TIFFReadDirEntryErrCount: - TIFFErrorExt(tif->tif_clientdata, module, - "Incorrect count for \"%s\"", - tagname); - break; - case TIFFReadDirEntryErrType: - TIFFErrorExt(tif->tif_clientdata, module, - "Incompatible type for \"%s\"", - tagname); - break; - case TIFFReadDirEntryErrIo: - TIFFErrorExt(tif->tif_clientdata, module, - "IO error during reading of \"%s\"", - tagname); - break; - case TIFFReadDirEntryErrRange: - TIFFErrorExt(tif->tif_clientdata, module, - "Incorrect value for \"%s\"", - tagname); - break; - case TIFFReadDirEntryErrPsdif: - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot handle different values per sample for \"%s\"", - tagname); - break; - case TIFFReadDirEntryErrSizesan: - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on size of \"%s\" value failed", - tagname); - break; - case TIFFReadDirEntryErrAlloc: - TIFFErrorExt(tif->tif_clientdata, module, - "Out of memory reading of \"%s\"", - tagname); - break; - default: - assert(0); /* we should never get here */ - break; - } - } else { - switch (err) { - case TIFFReadDirEntryErrCount: - TIFFWarningExt(tif->tif_clientdata, module, - "Incorrect count for \"%s\"; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrType: - TIFFWarningExt(tif->tif_clientdata, module, - "Incompatible type for \"%s\"; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrIo: - TIFFWarningExt(tif->tif_clientdata, module, - "IO error during reading of \"%s\"; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrRange: - TIFFWarningExt(tif->tif_clientdata, module, - "Incorrect value for \"%s\"; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrPsdif: - TIFFWarningExt(tif->tif_clientdata, module, - "Cannot handle different values per sample for \"%s\"; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrSizesan: - TIFFWarningExt(tif->tif_clientdata, module, - "Sanity check on size of \"%s\" value failed; tag ignored", - tagname); - break; - case TIFFReadDirEntryErrAlloc: - TIFFWarningExt(tif->tif_clientdata, module, - "Out of memory reading of \"%s\"; tag ignored", - tagname); - break; - default: - assert(0); /* we should never get here */ - break; - } - } -} - -/* - * Read the next TIFF directory from a file and convert it to the internal - * format. We read directories sequentially. - */ -int -TIFFReadDirectory(TIFF* tif) -{ - static const char module[] = "TIFFReadDirectory"; - TIFFDirEntry* dir; - uint16 dircount; - TIFFDirEntry* dp; - uint16 di; - const TIFFField* fip; - uint32 fii=FAILED_FII; - toff_t nextdiroff; - int bitspersample_read = FALSE; - - tif->tif_diroff=tif->tif_nextdiroff; - if (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff)) - return 0; /* last offset or bad offset (IFD looping) */ - (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ - tif->tif_curdir++; - nextdiroff = tif->tif_nextdiroff; - dircount=TIFFFetchDirectory(tif,nextdiroff,&dir,&tif->tif_nextdiroff); - if (!dircount) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Failed to read directory at offset " TIFF_UINT64_FORMAT,nextdiroff); - return 0; - } - TIFFReadDirectoryCheckOrder(tif,dir,dircount); - - /* - * Mark duplicates of any tag to be ignored (bugzilla 1994) - * to avoid certain pathological problems. - */ - { - TIFFDirEntry* ma; - uint16 mb; - for (ma=dir, mb=0; mbtdir_tag==na->tdir_tag) - na->tdir_tag=IGNORE; - } - } - } - - tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ - tif->tif_flags &= ~TIFF_BUF4WRITE; /* reset before new dir */ - /* free any old stuff and reinit */ - TIFFFreeDirectory(tif); - TIFFDefaultDirectory(tif); - /* - * Electronic Arts writes gray-scale TIFF files - * without a PlanarConfiguration directory entry. - * Thus we setup a default value here, even though - * the TIFF spec says there is no default value. - */ - TIFFSetField(tif,TIFFTAG_PLANARCONFIG,PLANARCONFIG_CONTIG); - /* - * Setup default value and then make a pass over - * the fields to check type and tag information, - * and to extract info required to size data - * structures. A second pass is made afterwards - * to read in everthing not taken in the first pass. - * But we must process the Compression tag first - * in order to merge in codec-private tag definitions (otherwise - * we may get complaints about unknown tags). However, the - * Compression tag may be dependent on the SamplesPerPixel - * tag value because older TIFF specs permited Compression - * to be written as a SamplesPerPixel-count tag entry. - * Thus if we don't first figure out the correct SamplesPerPixel - * tag value then we may end up ignoring the Compression tag - * value because it has an incorrect count value (if the - * true value of SamplesPerPixel is not 1). - */ - dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_SAMPLESPERPIXEL); - if (dp) - { - if (!TIFFFetchNormalTag(tif,dp,0)) - goto bad; - dp->tdir_tag=IGNORE; - } - dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_COMPRESSION); - if (dp) - { - /* - * The 5.0 spec says the Compression tag has one value, while - * earlier specs say it has one value per sample. Because of - * this, we accept the tag if one value is supplied with either - * count. - */ - uint16 value; - enum TIFFReadDirEntryErr err; - err=TIFFReadDirEntryShort(tif,dp,&value); - if (err==TIFFReadDirEntryErrCount) - err=TIFFReadDirEntryPersampleShort(tif,dp,&value); - if (err!=TIFFReadDirEntryErrOk) - { - TIFFReadDirEntryOutputErr(tif,err,module,"Compression",0); - goto bad; - } - if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,value)) - goto bad; - dp->tdir_tag=IGNORE; - } - else - { - if (!TIFFSetField(tif,TIFFTAG_COMPRESSION,COMPRESSION_NONE)) - goto bad; - } - /* - * First real pass over the directory. - */ - for (di=0, dp=dir; ditdir_tag!=IGNORE) - { - TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); - if (fii == FAILED_FII) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Unknown field with tag %d (0x%x) encountered", - dp->tdir_tag,dp->tdir_tag); - /* the following knowingly leaks the - anonymous field structure */ - if (!_TIFFMergeFields(tif, - _TIFFCreateAnonField(tif, - dp->tdir_tag, - (TIFFDataType) dp->tdir_type), - 1)) { - TIFFWarningExt(tif->tif_clientdata, - module, - "Registering anonymous field with tag %d (0x%x) failed", - dp->tdir_tag, - dp->tdir_tag); - dp->tdir_tag=IGNORE; - } else { - TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); - assert(fii != FAILED_FII); - } - } - } - if (dp->tdir_tag!=IGNORE) - { - fip=tif->tif_fields[fii]; - if (fip->field_bit==FIELD_IGNORE) - dp->tdir_tag=IGNORE; - else - { - switch (dp->tdir_tag) - { - case TIFFTAG_STRIPOFFSETS: - case TIFFTAG_STRIPBYTECOUNTS: - case TIFFTAG_TILEOFFSETS: - case TIFFTAG_TILEBYTECOUNTS: - TIFFSetFieldBit(tif,fip->field_bit); - break; - case TIFFTAG_IMAGEWIDTH: - case TIFFTAG_IMAGELENGTH: - case TIFFTAG_IMAGEDEPTH: - case TIFFTAG_TILELENGTH: - case TIFFTAG_TILEWIDTH: - case TIFFTAG_TILEDEPTH: - case TIFFTAG_PLANARCONFIG: - case TIFFTAG_ROWSPERSTRIP: - case TIFFTAG_EXTRASAMPLES: - if (!TIFFFetchNormalTag(tif,dp,0)) - goto bad; - dp->tdir_tag=IGNORE; - break; - } - } - } - } - /* - * XXX: OJPEG hack. - * If a) compression is OJPEG, b) planarconfig tag says it's separate, - * c) strip offsets/bytecounts tag are both present and - * d) both contain exactly one value, then we consistently find - * that the buggy implementation of the buggy compression scheme - * matches contig planarconfig best. So we 'fix-up' the tag here - */ - if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG)&& - (tif->tif_dir.td_planarconfig==PLANARCONFIG_SEPARATE)) - { - if (!_TIFFFillStriles(tif)) - goto bad; - dp=TIFFReadDirectoryFindEntry(tif,dir,dircount,TIFFTAG_STRIPOFFSETS); - if ((dp!=0)&&(dp->tdir_count==1)) - { - dp=TIFFReadDirectoryFindEntry(tif,dir,dircount, - TIFFTAG_STRIPBYTECOUNTS); - if ((dp!=0)&&(dp->tdir_count==1)) - { - tif->tif_dir.td_planarconfig=PLANARCONFIG_CONTIG; - TIFFWarningExt(tif->tif_clientdata,module, - "Planarconfig tag value assumed incorrect, " - "assuming data is contig instead of chunky"); - } - } - } - /* - * Allocate directory structure and setup defaults. - */ - if (!TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) - { - MissingRequired(tif,"ImageLength"); - goto bad; - } - /* - * Setup appropriate structures (by strip or by tile) - */ - if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) { - tif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif); - tif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth; - tif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip; - tif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth; - tif->tif_flags &= ~TIFF_ISTILED; - } else { - tif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif); - tif->tif_flags |= TIFF_ISTILED; - } - if (!tif->tif_dir.td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot handle zero number of %s", - isTiled(tif) ? "tiles" : "strips"); - goto bad; - } - tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips; - if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE) - tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel; - if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) { - if ((tif->tif_dir.td_compression==COMPRESSION_OJPEG) && - (isTiled(tif)==0) && - (tif->tif_dir.td_nstrips==1)) { - /* - * XXX: OJPEG hack. - * If a) compression is OJPEG, b) it's not a tiled TIFF, - * and c) the number of strips is 1, - * then we tolerate the absence of stripoffsets tag, - * because, presumably, all required data is in the - * JpegInterchangeFormat stream. - */ - TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); - } else { - MissingRequired(tif, - isTiled(tif) ? "TileOffsets" : "StripOffsets"); - goto bad; - } - } - /* - * Second pass: extract other information. - */ - for (di=0, dp=dir; ditdir_tag) - { - case IGNORE: - break; - case TIFFTAG_MINSAMPLEVALUE: - case TIFFTAG_MAXSAMPLEVALUE: - case TIFFTAG_BITSPERSAMPLE: - case TIFFTAG_DATATYPE: - case TIFFTAG_SAMPLEFORMAT: - /* - * The MinSampleValue, MaxSampleValue, BitsPerSample - * DataType and SampleFormat tags are supposed to be - * written as one value/sample, but some vendors - * incorrectly write one value only -- so we accept - * that as well (yech). Other vendors write correct - * value for NumberOfSamples, but incorrect one for - * BitsPerSample and friends, and we will read this - * too. - */ - { - uint16 value; - enum TIFFReadDirEntryErr err; - err=TIFFReadDirEntryShort(tif,dp,&value); - if (err==TIFFReadDirEntryErrCount) - err=TIFFReadDirEntryPersampleShort(tif,dp,&value); - if (err!=TIFFReadDirEntryErrOk) - { - fip = TIFFFieldWithTag(tif,dp->tdir_tag); - TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0); - goto bad; - } - if (!TIFFSetField(tif,dp->tdir_tag,value)) - goto bad; - if( dp->tdir_tag == TIFFTAG_BITSPERSAMPLE ) - bitspersample_read = TRUE; - } - break; - case TIFFTAG_SMINSAMPLEVALUE: - case TIFFTAG_SMAXSAMPLEVALUE: - { - - double *data; - enum TIFFReadDirEntryErr err; - uint32 saved_flags; - int m; - if (dp->tdir_count != (uint64)tif->tif_dir.td_samplesperpixel) - err = TIFFReadDirEntryErrCount; - else - err = TIFFReadDirEntryDoubleArray(tif, dp, &data); - if (err!=TIFFReadDirEntryErrOk) - { - fip = TIFFFieldWithTag(tif,dp->tdir_tag); - TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0); - goto bad; - } - saved_flags = tif->tif_flags; - tif->tif_flags |= TIFF_PERSAMPLE; - m = TIFFSetField(tif,dp->tdir_tag,data); - tif->tif_flags = saved_flags; - _TIFFfree(data); - if (!m) - goto bad; - } - break; - case TIFFTAG_STRIPOFFSETS: - case TIFFTAG_TILEOFFSETS: -#if defined(DEFER_STRILE_LOAD) - _TIFFmemcpy( &(tif->tif_dir.td_stripoffset_entry), - dp, sizeof(TIFFDirEntry) ); -#else - if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripoffset)) - goto bad; -#endif - break; - case TIFFTAG_STRIPBYTECOUNTS: - case TIFFTAG_TILEBYTECOUNTS: -#if defined(DEFER_STRILE_LOAD) - _TIFFmemcpy( &(tif->tif_dir.td_stripbytecount_entry), - dp, sizeof(TIFFDirEntry) ); -#else - if (!TIFFFetchStripThing(tif,dp,tif->tif_dir.td_nstrips,&tif->tif_dir.td_stripbytecount)) - goto bad; -#endif - break; - case TIFFTAG_COLORMAP: - case TIFFTAG_TRANSFERFUNCTION: - { - enum TIFFReadDirEntryErr err; - uint32 countpersample; - uint32 countrequired; - uint32 incrementpersample; - uint16* value=NULL; - /* It would be dangerous to instanciate those tag values */ - /* since if td_bitspersample has not yet been read (due to */ - /* unordered tags), it could be read afterwards with a */ - /* values greater than the default one (1), which may cause */ - /* crashes in user code */ - if( !bitspersample_read ) - { - fip = TIFFFieldWithTag(tif,dp->tdir_tag); - TIFFWarningExt(tif->tif_clientdata,module, - "Ignoring %s since BitsPerSample tag not found", - fip ? fip->field_name : "unknown tagname"); - continue; - } - countpersample=(1L<tif_dir.td_bitspersample); - if ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCTION)&&(dp->tdir_count==(uint64)countpersample)) - { - countrequired=countpersample; - incrementpersample=0; - } - else - { - countrequired=3*countpersample; - incrementpersample=countpersample; - } - if (dp->tdir_count!=(uint64)countrequired) - err=TIFFReadDirEntryErrCount; - else - err=TIFFReadDirEntryShortArray(tif,dp,&value); - if (err!=TIFFReadDirEntryErrOk) - { - fip = TIFFFieldWithTag(tif,dp->tdir_tag); - TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",1); - } - else - { - TIFFSetField(tif,dp->tdir_tag,value,value+incrementpersample,value+2*incrementpersample); - _TIFFfree(value); - } - } - break; -/* BEGIN REV 4.0 COMPATIBILITY */ - case TIFFTAG_OSUBFILETYPE: - { - uint16 valueo; - uint32 value; - if (TIFFReadDirEntryShort(tif,dp,&valueo)==TIFFReadDirEntryErrOk) - { - switch (valueo) - { - case OFILETYPE_REDUCEDIMAGE: value=FILETYPE_REDUCEDIMAGE; break; - case OFILETYPE_PAGE: value=FILETYPE_PAGE; break; - default: value=0; break; - } - if (value!=0) - TIFFSetField(tif,TIFFTAG_SUBFILETYPE,value); - } - } - break; -/* END REV 4.0 COMPATIBILITY */ - default: - (void) TIFFFetchNormalTag(tif, dp, TRUE); - break; - } - } - /* - * OJPEG hack: - * - If a) compression is OJPEG, and b) photometric tag is missing, - * then we consistently find that photometric should be YCbCr - * - If a) compression is OJPEG, and b) photometric tag says it's RGB, - * then we consistently find that the buggy implementation of the - * buggy compression scheme matches photometric YCbCr instead. - * - If a) compression is OJPEG, and b) bitspersample tag is missing, - * then we consistently find bitspersample should be 8. - * - If a) compression is OJPEG, b) samplesperpixel tag is missing, - * and c) photometric is RGB or YCbCr, then we consistently find - * samplesperpixel should be 3 - * - If a) compression is OJPEG, b) samplesperpixel tag is missing, - * and c) photometric is MINISWHITE or MINISBLACK, then we consistently - * find samplesperpixel should be 3 - */ - if (tif->tif_dir.td_compression==COMPRESSION_OJPEG) - { - if (!TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Photometric tag is missing, assuming data is YCbCr"); - if (!TIFFSetField(tif,TIFFTAG_PHOTOMETRIC,PHOTOMETRIC_YCBCR)) - goto bad; - } - else if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB) - { - tif->tif_dir.td_photometric=PHOTOMETRIC_YCBCR; - TIFFWarningExt(tif->tif_clientdata, module, - "Photometric tag value assumed incorrect, " - "assuming data is YCbCr instead of RGB"); - } - if (!TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) - { - TIFFWarningExt(tif->tif_clientdata,module, - "BitsPerSample tag is missing, assuming 8 bits per sample"); - if (!TIFFSetField(tif,TIFFTAG_BITSPERSAMPLE,8)) - goto bad; - } - if (!TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) - { - if (tif->tif_dir.td_photometric==PHOTOMETRIC_RGB) - { - TIFFWarningExt(tif->tif_clientdata,module, - "SamplesPerPixel tag is missing, " - "assuming correct SamplesPerPixel value is 3"); - if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)) - goto bad; - } - if (tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR) - { - TIFFWarningExt(tif->tif_clientdata,module, - "SamplesPerPixel tag is missing, " - "applying correct SamplesPerPixel value of 3"); - if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,3)) - goto bad; - } - else if ((tif->tif_dir.td_photometric==PHOTOMETRIC_MINISWHITE) - || (tif->tif_dir.td_photometric==PHOTOMETRIC_MINISBLACK)) - { - /* - * SamplesPerPixel tag is missing, but is not required - * by spec. Assume correct SamplesPerPixel value of 1. - */ - if (!TIFFSetField(tif,TIFFTAG_SAMPLESPERPIXEL,1)) - goto bad; - } - } - } - /* - * Verify Palette image has a Colormap. - */ - if (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE && - !TIFFFieldSet(tif, FIELD_COLORMAP)) { - if ( tif->tif_dir.td_bitspersample>=8 && tif->tif_dir.td_samplesperpixel==3) - tif->tif_dir.td_photometric = PHOTOMETRIC_RGB; - else if (tif->tif_dir.td_bitspersample>=8) - tif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK; - else { - MissingRequired(tif, "Colormap"); - goto bad; - } - } - /* - * OJPEG hack: - * We do no further messing with strip/tile offsets/bytecounts in OJPEG - * TIFFs - */ - if (tif->tif_dir.td_compression!=COMPRESSION_OJPEG) - { - /* - * Attempt to deal with a missing StripByteCounts tag. - */ - if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) { - /* - * Some manufacturers violate the spec by not giving - * the size of the strips. In this case, assume there - * is one uncompressed strip of data. - */ - if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && - tif->tif_dir.td_nstrips > 1) || - (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE && - tif->tif_dir.td_nstrips != (uint32)tif->tif_dir.td_samplesperpixel)) { - MissingRequired(tif, "StripByteCounts"); - goto bad; - } - TIFFWarningExt(tif->tif_clientdata, module, - "TIFF directory is missing required " - "\"StripByteCounts\" field, calculating from imagelength"); - if (EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; - /* - * Assume we have wrong StripByteCount value (in case - * of single strip) in following cases: - * - it is equal to zero along with StripOffset; - * - it is larger than file itself (in case of uncompressed - * image); - * - it is smaller than the size of the bytes per row - * multiplied on the number of rows. The last case should - * not be checked in the case of writing new image, - * because we may do not know the exact strip size - * until the whole image will be written and directory - * dumped out. - */ - #define BYTECOUNTLOOKSBAD \ - ( (tif->tif_dir.td_stripbytecount[0] == 0 && tif->tif_dir.td_stripoffset[0] != 0) || \ - (tif->tif_dir.td_compression == COMPRESSION_NONE && \ - tif->tif_dir.td_stripbytecount[0] > TIFFGetFileSize(tif) - tif->tif_dir.td_stripoffset[0]) || \ - (tif->tif_mode == O_RDONLY && \ - tif->tif_dir.td_compression == COMPRESSION_NONE && \ - tif->tif_dir.td_stripbytecount[0] < TIFFScanlineSize64(tif) * tif->tif_dir.td_imagelength) ) - - } else if (tif->tif_dir.td_nstrips == 1 - && _TIFFFillStriles(tif) - && tif->tif_dir.td_stripoffset[0] != 0 - && BYTECOUNTLOOKSBAD) { - /* - * XXX: Plexus (and others) sometimes give a value of - * zero for a tag when they don't know what the - * correct value is! Try and handle the simple case - * of estimating the size of a one strip image. - */ - TIFFWarningExt(tif->tif_clientdata, module, - "Bogus \"StripByteCounts\" field, ignoring and calculating from imagelength"); - if(EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; - -#if !defined(DEFER_STRILE_LOAD) - } else if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG - && tif->tif_dir.td_nstrips > 2 - && tif->tif_dir.td_compression == COMPRESSION_NONE - && tif->tif_dir.td_stripbytecount[0] != tif->tif_dir.td_stripbytecount[1] - && tif->tif_dir.td_stripbytecount[0] != 0 - && tif->tif_dir.td_stripbytecount[1] != 0 ) { - /* - * XXX: Some vendors fill StripByteCount array with - * absolutely wrong values (it can be equal to - * StripOffset array, for example). Catch this case - * here. - * - * We avoid this check if deferring strile loading - * as it would always force us to load the strip/tile - * information. - */ - TIFFWarningExt(tif->tif_clientdata, module, - "Wrong \"StripByteCounts\" field, ignoring and calculating from imagelength"); - if (EstimateStripByteCounts(tif, dir, dircount) < 0) - goto bad; -#endif /* !defined(DEFER_STRILE_LOAD) */ - } - } - if (dir) - { - _TIFFfree(dir); - dir=NULL; - } - if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE)) - { - if (tif->tif_dir.td_bitspersample>=16) - tif->tif_dir.td_maxsamplevalue=0xFFFF; - else - tif->tif_dir.td_maxsamplevalue = (uint16)((1L<tif_dir.td_bitspersample)-1); - } - /* - * XXX: We can optimize checking for the strip bounds using the sorted - * bytecounts array. See also comments for TIFFAppendToStrip() - * function in tif_write.c. - */ -#if !defined(DEFER_STRILE_LOAD) - if (tif->tif_dir.td_nstrips > 1) { - uint32 strip; - - tif->tif_dir.td_stripbytecountsorted = 1; - for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) { - if (tif->tif_dir.td_stripoffset[strip - 1] > - tif->tif_dir.td_stripoffset[strip]) { - tif->tif_dir.td_stripbytecountsorted = 0; - break; - } - } - } -#endif /* !defined(DEFER_STRILE_LOAD) */ - - /* - * An opportunity for compression mode dependent tag fixup - */ - (*tif->tif_fixuptags)(tif); - - /* - * Some manufacturers make life difficult by writing - * large amounts of uncompressed data as a single strip. - * This is contrary to the recommendations of the spec. - * The following makes an attempt at breaking such images - * into strips closer to the recommended 8k bytes. A - * side effect, however, is that the RowsPerStrip tag - * value may be changed. - */ - if ((tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&& - (tif->tif_dir.td_nstrips==1)&& - (tif->tif_dir.td_compression==COMPRESSION_NONE)&& - ((tif->tif_flags&(TIFF_STRIPCHOP|TIFF_ISTILED))==TIFF_STRIPCHOP)) - { - if ( !_TIFFFillStriles(tif) || !tif->tif_dir.td_stripbytecount ) - return 0; - ChopUpSingleUncompressedStrip(tif); - } - - /* - * Clear the dirty directory flag. - */ - tif->tif_flags &= ~TIFF_DIRTYDIRECT; - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - - /* - * Reinitialize i/o since we are starting on a new directory. - */ - tif->tif_row = (uint32) -1; - tif->tif_curstrip = (uint32) -1; - tif->tif_col = (uint32) -1; - tif->tif_curtile = (uint32) -1; - tif->tif_tilesize = (tmsize_t) -1; - - tif->tif_scanlinesize = TIFFScanlineSize(tif); - if (!tif->tif_scanlinesize) { - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot handle zero scanline size"); - return (0); - } - - if (isTiled(tif)) { - tif->tif_tilesize = TIFFTileSize(tif); - if (!tif->tif_tilesize) { - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot handle zero tile size"); - return (0); - } - } else { - if (!TIFFStripSize(tif)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot handle zero strip size"); - return (0); - } - } - return (1); -bad: - if (dir) - _TIFFfree(dir); - return (0); -} - -static void -TIFFReadDirectoryCheckOrder(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) -{ - static const char module[] = "TIFFReadDirectoryCheckOrder"; - uint16 m; - uint16 n; - TIFFDirEntry* o; - m=0; - for (n=0, o=dir; ntdir_tagtif_clientdata,module, - "Invalid TIFF directory; tags are not sorted in ascending order"); - break; - } - m=o->tdir_tag+1; - } -} - -static TIFFDirEntry* -TIFFReadDirectoryFindEntry(TIFF* tif, TIFFDirEntry* dir, uint16 dircount, uint16 tagid) -{ - TIFFDirEntry* m; - uint16 n; - (void) tif; - for (m=dir, n=0; ntdir_tag==tagid) - return(m); - } - return(0); -} - -static void -TIFFReadDirectoryFindFieldInfo(TIFF* tif, uint16 tagid, uint32* fii) -{ - int32 ma,mb,mc; - ma=-1; - mc=(int32)tif->tif_nfields; - while (1) - { - if (ma+1==mc) - { - *fii = FAILED_FII; - return; - } - mb=(ma+mc)/2; - if (tif->tif_fields[mb]->field_tag==(uint32)tagid) - break; - if (tif->tif_fields[mb]->field_tag<(uint32)tagid) - ma=mb; - else - mc=mb; - } - while (1) - { - if (mb==0) - break; - if (tif->tif_fields[mb-1]->field_tag!=(uint32)tagid) - break; - mb--; - } - *fii=mb; -} - -/* - * Read custom directory from the arbitarry offset. - * The code is very similar to TIFFReadDirectory(). - */ -int -TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, - const TIFFFieldArray* infoarray) -{ - static const char module[] = "TIFFReadCustomDirectory"; - TIFFDirEntry* dir; - uint16 dircount; - TIFFDirEntry* dp; - uint16 di; - const TIFFField* fip; - uint32 fii; - _TIFFSetupFields(tif, infoarray); - dircount=TIFFFetchDirectory(tif,diroff,&dir,NULL); - if (!dircount) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Failed to read custom directory at offset " TIFF_UINT64_FORMAT,diroff); - return 0; - } - TIFFFreeDirectory(tif); - _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory)); - TIFFReadDirectoryCheckOrder(tif,dir,dircount); - for (di=0, dp=dir; ditdir_tag,&fii); - if (fii == FAILED_FII) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Unknown field with tag %d (0x%x) encountered", - dp->tdir_tag, dp->tdir_tag); - if (!_TIFFMergeFields(tif, _TIFFCreateAnonField(tif, - dp->tdir_tag, - (TIFFDataType) dp->tdir_type), - 1)) { - TIFFWarningExt(tif->tif_clientdata, module, - "Registering anonymous field with tag %d (0x%x) failed", - dp->tdir_tag, dp->tdir_tag); - dp->tdir_tag=IGNORE; - } else { - TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); - assert( fii != FAILED_FII ); - } - } - if (dp->tdir_tag!=IGNORE) - { - fip=tif->tif_fields[fii]; - if (fip->field_bit==FIELD_IGNORE) - dp->tdir_tag=IGNORE; - else - { - /* check data type */ - while ((fip->field_type!=TIFF_ANY)&&(fip->field_type!=dp->tdir_type)) - { - fii++; - if ((fii==tif->tif_nfields)|| - (tif->tif_fields[fii]->field_tag!=(uint32)dp->tdir_tag)) - { - fii=0xFFFF; - break; - } - fip=tif->tif_fields[fii]; - } - if (fii==0xFFFF) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Wrong data type %d for \"%s\"; tag ignored", - dp->tdir_type,fip->field_name); - dp->tdir_tag=IGNORE; - } - else - { - /* check count if known in advance */ - if ((fip->field_readcount!=TIFF_VARIABLE)&& - (fip->field_readcount!=TIFF_VARIABLE2)) - { - uint32 expected; - if (fip->field_readcount==TIFF_SPP) - expected=(uint32)tif->tif_dir.td_samplesperpixel; - else - expected=(uint32)fip->field_readcount; - if (!CheckDirCount(tif,dp,expected)) - dp->tdir_tag=IGNORE; - } - } - } - switch (dp->tdir_tag) - { - case IGNORE: - break; - case EXIFTAG_SUBJECTDISTANCE: - (void) TIFFFetchSubjectDistance(tif,dp); - break; - default: - (void) TIFFFetchNormalTag(tif, dp, TRUE); - break; - } - } - } - if (dir) - _TIFFfree(dir); - return 1; -} - -/* - * EXIF is important special case of custom IFD, so we have a special - * function to read it. - */ -int -TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff) -{ - const TIFFFieldArray* exifFieldArray; - exifFieldArray = _TIFFGetExifFields(); - return TIFFReadCustomDirectory(tif, diroff, exifFieldArray); -} - -static int -EstimateStripByteCounts(TIFF* tif, TIFFDirEntry* dir, uint16 dircount) -{ - static const char module[] = "EstimateStripByteCounts"; - - TIFFDirEntry *dp; - TIFFDirectory *td = &tif->tif_dir; - uint32 strip; - - if( !_TIFFFillStriles( tif ) ) - return -1; - - if (td->td_stripbytecount) - _TIFFfree(td->td_stripbytecount); - td->td_stripbytecount = (uint64*) - _TIFFCheckMalloc(tif, td->td_nstrips, sizeof (uint64), - "for \"StripByteCounts\" array"); - if( td->td_stripbytecount == NULL ) - return -1; - - if (td->td_compression != COMPRESSION_NONE) { - uint64 space; - uint64 filesize; - uint16 n; - filesize = TIFFGetFileSize(tif); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - space=sizeof(TIFFHeaderClassic)+2+dircount*12+4; - else - space=sizeof(TIFFHeaderBig)+8+dircount*20+8; - /* calculate amount of space used by indirect values */ - for (dp = dir, n = dircount; n > 0; n--, dp++) - { - uint32 typewidth = TIFFDataWidth((TIFFDataType) dp->tdir_type); - uint64 datasize; - typewidth = TIFFDataWidth((TIFFDataType) dp->tdir_type); - if (typewidth == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Cannot determine size of unknown tag type %d", - dp->tdir_type); - return -1; - } - datasize=(uint64)typewidth*dp->tdir_count; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (datasize<=4) - datasize=0; - } - else - { - if (datasize<=8) - datasize=0; - } - space+=datasize; - } - space = filesize - space; - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - space /= td->td_samplesperpixel; - for (strip = 0; strip < td->td_nstrips; strip++) - td->td_stripbytecount[strip] = space; - /* - * This gross hack handles the case were the offset to - * the last strip is past the place where we think the strip - * should begin. Since a strip of data must be contiguous, - * it's safe to assume that we've overestimated the amount - * of data in the strip and trim this number back accordingly. - */ - strip--; - if (td->td_stripoffset[strip]+td->td_stripbytecount[strip] > filesize) - td->td_stripbytecount[strip] = filesize - td->td_stripoffset[strip]; - } else if (isTiled(tif)) { - uint64 bytespertile = TIFFTileSize64(tif); - - for (strip = 0; strip < td->td_nstrips; strip++) - td->td_stripbytecount[strip] = bytespertile; - } else { - uint64 rowbytes = TIFFScanlineSize64(tif); - uint32 rowsperstrip = td->td_imagelength/td->td_stripsperimage; - for (strip = 0; strip < td->td_nstrips; strip++) - td->td_stripbytecount[strip] = rowbytes * rowsperstrip; - } - TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); - if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) - td->td_rowsperstrip = td->td_imagelength; - return 1; -} - -static void -MissingRequired(TIFF* tif, const char* tagname) -{ - static const char module[] = "MissingRequired"; - - TIFFErrorExt(tif->tif_clientdata, module, - "TIFF directory is missing required \"%s\" field", - tagname); -} - -/* - * Check the directory offset against the list of already seen directory - * offsets. This is a trick to prevent IFD looping. The one can create TIFF - * file with looped directory pointers. We will maintain a list of already - * seen directories and check every IFD offset against that list. - */ -static int -TIFFCheckDirOffset(TIFF* tif, uint64 diroff) -{ - uint16 n; - - if (diroff == 0) /* no more directories */ - return 0; - if (tif->tif_dirnumber == 65535) { - TIFFErrorExt(tif->tif_clientdata, "TIFFCheckDirOffset", - "Cannot handle more than 65535 TIFF directories"); - return 0; - } - - for (n = 0; n < tif->tif_dirnumber && tif->tif_dirlist; n++) { - if (tif->tif_dirlist[n] == diroff) - return 0; - } - - tif->tif_dirnumber++; - - if (tif->tif_dirnumber > tif->tif_dirlistsize) { - uint64* new_dirlist; - - /* - * XXX: Reduce memory allocation granularity of the dirlist - * array. - */ - new_dirlist = (uint64*)_TIFFCheckRealloc(tif, tif->tif_dirlist, - tif->tif_dirnumber, 2 * sizeof(uint64), "for IFD list"); - if (!new_dirlist) - return 0; - if( tif->tif_dirnumber >= 32768 ) - tif->tif_dirlistsize = 65535; - else - tif->tif_dirlistsize = 2 * tif->tif_dirnumber; - tif->tif_dirlist = new_dirlist; - } - - tif->tif_dirlist[tif->tif_dirnumber - 1] = diroff; - - return 1; -} - -/* - * Check the count field of a directory entry against a known value. The - * caller is expected to skip/ignore the tag if there is a mismatch. - */ -static int -CheckDirCount(TIFF* tif, TIFFDirEntry* dir, uint32 count) -{ - if ((uint64)count > dir->tdir_count) { - const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag); - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u); tag ignored", - fip ? fip->field_name : "unknown tagname", - dir->tdir_count, count); - return (0); - } else if ((uint64)count < dir->tdir_count) { - const TIFFField* fip = TIFFFieldWithTag(tif, dir->tdir_tag); - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "incorrect count for field \"%s\" (" TIFF_UINT64_FORMAT ", expecting %u); tag trimmed", - fip ? fip->field_name : "unknown tagname", - dir->tdir_count, count); - dir->tdir_count = count; - return (1); - } - return (1); -} - -/* - * Read IFD structure from the specified offset. If the pointer to - * nextdiroff variable has been specified, read it too. Function returns a - * number of fields in the directory or 0 if failed. - */ -static uint16 -TIFFFetchDirectory(TIFF* tif, uint64 diroff, TIFFDirEntry** pdir, - uint64 *nextdiroff) -{ - static const char module[] = "TIFFFetchDirectory"; - - void* origdir; - uint16 dircount16; - uint32 dirsize; - TIFFDirEntry* dir; - uint8* ma; - TIFFDirEntry* mb; - uint16 n; - - assert(pdir); - - tif->tif_diroff = diroff; - if (nextdiroff) - *nextdiroff = 0; - if (!isMapped(tif)) { - if (!SeekOK(tif, tif->tif_diroff)) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return 0; - } - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (!ReadOK(tif, &dircount16, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return 0; - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount16); - if (dircount16>4096) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on directory count failed, this is probably not a valid IFD offset"); - return 0; - } - dirsize = 12; - } else { - uint64 dircount64; - if (!ReadOK(tif, &dircount64, sizeof (uint64))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return 0; - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>4096) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on directory count failed, this is probably not a valid IFD offset"); - return 0; - } - dircount16 = (uint16)dircount64; - dirsize = 20; - } - origdir = _TIFFCheckMalloc(tif, dircount16, - dirsize, "to read TIFF directory"); - if (origdir == NULL) - return 0; - if (!ReadOK(tif, origdir, (tmsize_t)(dircount16*dirsize))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%.100s: Can not read TIFF directory", - tif->tif_name); - _TIFFfree(origdir); - return 0; - } - /* - * Read offset to next directory for sequential scans if - * needed. - */ - if (nextdiroff) - { - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 nextdiroff32; - if (!ReadOK(tif, &nextdiroff32, sizeof(uint32))) - nextdiroff32 = 0; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&nextdiroff32); - *nextdiroff=nextdiroff32; - } else { - if (!ReadOK(tif, nextdiroff, sizeof(uint64))) - *nextdiroff = 0; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(nextdiroff); - } - } - } else { - tmsize_t m; - tmsize_t off = (tmsize_t) tif->tif_diroff; - if ((uint64)off!=tif->tif_diroff) - { - TIFFErrorExt(tif->tif_clientdata,module,"Can not read TIFF directory count"); - return(0); - } - - /* - * Check for integer overflow when validating the dir_off, - * otherwise a very high offset may cause an OOB read and - * crash the client. Make two comparisons instead of - * - * off + sizeof(uint16) > tif->tif_size - * - * to avoid overflow. - */ - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - m=off+sizeof(uint16); - if ((mtif->tif_size)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not read TIFF directory count"); - return 0; - } else { - _TIFFmemcpy(&dircount16, tif->tif_base + off, - sizeof(uint16)); - } - off += sizeof (uint16); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount16); - if (dircount16>4096) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on directory count failed, this is probably not a valid IFD offset"); - return 0; - } - dirsize = 12; - } - else - { - tmsize_t m; - uint64 dircount64; - m=off+sizeof(uint64); - if ((mtif->tif_size)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not read TIFF directory count"); - return 0; - } else { - _TIFFmemcpy(&dircount64, tif->tif_base + off, - sizeof(uint64)); - } - off += sizeof (uint64); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>4096) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on directory count failed, this is probably not a valid IFD offset"); - return 0; - } - dircount16 = (uint16)dircount64; - dirsize = 20; - } - if (dircount16 == 0 ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on directory count failed, zero tag directories not supported"); - return 0; - } - origdir = _TIFFCheckMalloc(tif, dircount16, - dirsize, - "to read TIFF directory"); - if (origdir == NULL) - return 0; - m=off+dircount16*dirsize; - if ((mtif->tif_size)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not read TIFF directory"); - _TIFFfree(origdir); - return 0; - } else { - _TIFFmemcpy(origdir, tif->tif_base + off, - dircount16 * dirsize); - } - if (nextdiroff) { - off += dircount16 * dirsize; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 nextdiroff32; - m=off+sizeof(uint32); - if ((mtif->tif_size)) - nextdiroff32 = 0; - else - _TIFFmemcpy(&nextdiroff32, tif->tif_base + off, - sizeof (uint32)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&nextdiroff32); - *nextdiroff = nextdiroff32; - } - else - { - m=off+sizeof(uint64); - if ((mtif->tif_size)) - *nextdiroff = 0; - else - _TIFFmemcpy(nextdiroff, tif->tif_base + off, - sizeof (uint64)); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(nextdiroff); - } - } - } - dir = (TIFFDirEntry*)_TIFFCheckMalloc(tif, dircount16, - sizeof(TIFFDirEntry), - "to read TIFF directory"); - if (dir==0) - { - _TIFFfree(origdir); - return 0; - } - ma=(uint8*)origdir; - mb=dir; - for (n=0; ntif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - mb->tdir_tag=*(uint16*)ma; - ma+=sizeof(uint16); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)ma); - mb->tdir_type=*(uint16*)ma; - ma+=sizeof(uint16); - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)ma); - mb->tdir_count=(uint64)(*(uint32*)ma); - ma+=sizeof(uint32); - *(uint32*)(&mb->tdir_offset)=*(uint32*)ma; - ma+=sizeof(uint32); - } - else - { - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)ma); - mb->tdir_count=TIFFReadUInt64(ma); - ma+=sizeof(uint64); - mb->tdir_offset.toff_long8=TIFFReadUInt64(ma); - ma+=sizeof(uint64); - } - mb++; - } - _TIFFfree(origdir); - *pdir = dir; - return dircount16; -} - -/* - * Fetch a tag that is not handled by special case code. - */ -static int -TIFFFetchNormalTag(TIFF* tif, TIFFDirEntry* dp, int recover) -{ - static const char module[] = "TIFFFetchNormalTag"; - enum TIFFReadDirEntryErr err; - uint32 fii; - const TIFFField* fip = NULL; - TIFFReadDirectoryFindFieldInfo(tif,dp->tdir_tag,&fii); - if( fii == FAILED_FII ) - { - TIFFErrorExt(tif->tif_clientdata, "TIFFFetchNormalTag", - "No definition found for tag %d", - dp->tdir_tag); - return 0; - } - fip=tif->tif_fields[fii]; - assert(fip != NULL); /* should not happen */ - assert(fip->set_field_type!=TIFF_SETGET_OTHER); /* if so, we shouldn't arrive here but deal with this in specialized code */ - assert(fip->set_field_type!=TIFF_SETGET_INT); /* if so, we shouldn't arrive here as this is only the case for pseudo-tags */ - err=TIFFReadDirEntryErrOk; - switch (fip->set_field_type) - { - case TIFF_SETGET_UNDEFINED: - break; - case TIFF_SETGET_ASCII: - { - uint8* data; - assert(fip->field_passcount==0); - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - uint8* ma; - uint32 mb; - int n; - ma=data; - mb=0; - while (mb<(uint32)dp->tdir_count) - { - if (*ma==0) - break; - ma++; - mb++; - } - if (mb+1<(uint32)dp->tdir_count) - TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" contains null byte in value; value incorrectly truncated during reading due to implementation limitations",fip->field_name); - else if (mb+1>(uint32)dp->tdir_count) - { - uint8* o; - TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" does not end in null byte",fip->field_name); - if ((uint32)dp->tdir_count+1!=dp->tdir_count+1) - o=NULL; - else - o=_TIFFmalloc((uint32)dp->tdir_count+1); - if (o==NULL) - { - if (data!=NULL) - _TIFFfree(data); - return(0); - } - _TIFFmemcpy(o,data,(uint32)dp->tdir_count); - o[(uint32)dp->tdir_count]=0; - if (data!=0) - _TIFFfree(data); - data=o; - } - n=TIFFSetField(tif,dp->tdir_tag,data); - if (data!=0) - _TIFFfree(data); - if (!n) - return(0); - } - } - break; - case TIFF_SETGET_UINT8: - { - uint8 data=0; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryByte(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_UINT16: - { - uint16 data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryShort(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_UINT32: - { - uint32 data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryLong(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_UINT64: - { - uint64 data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryLong8(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_FLOAT: - { - float data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryFloat(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_DOUBLE: - { - double data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryDouble(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_IFD8: - { - uint64 data; - assert(fip->field_readcount==1); - assert(fip->field_passcount==0); - err=TIFFReadDirEntryIfd8(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - if (!TIFFSetField(tif,dp->tdir_tag,data)) - return(0); - } - } - break; - case TIFF_SETGET_UINT16_PAIR: - { - uint16* data; - assert(fip->field_readcount==2); - assert(fip->field_passcount==0); - if (dp->tdir_count!=2) { - TIFFWarningExt(tif->tif_clientdata,module, - "incorrect count for field \"%s\", expected 2, got %d", - fip->field_name,(int)dp->tdir_count); - return(0); - } - err=TIFFReadDirEntryShortArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,data[0],data[1]); - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C0_UINT8: - { - uint8* data; - assert(fip->field_readcount>=1); - assert(fip->field_passcount==0); - if (dp->tdir_count!=(uint64)fip->field_readcount) { - TIFFWarningExt(tif->tif_clientdata,module, - "incorrect count for field \"%s\", expected %d, got %d", - fip->field_name,(int) fip->field_readcount, (int)dp->tdir_count); - return 0; - } - else - { - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C0_UINT16: - { - uint16* data; - assert(fip->field_readcount>=1); - assert(fip->field_passcount==0); - if (dp->tdir_count!=(uint64)fip->field_readcount) - /* corrupt file */; - else - { - err=TIFFReadDirEntryShortArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C0_UINT32: - { - uint32* data; - assert(fip->field_readcount>=1); - assert(fip->field_passcount==0); - if (dp->tdir_count!=(uint64)fip->field_readcount) - /* corrupt file */; - else - { - err=TIFFReadDirEntryLongArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C0_FLOAT: - { - float* data; - assert(fip->field_readcount>=1); - assert(fip->field_passcount==0); - if (dp->tdir_count!=(uint64)fip->field_readcount) - /* corrupt file */; - else - { - err=TIFFReadDirEntryFloatArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_ASCII: - { - uint8* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_UINT8: - { - uint8* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_UINT16: - { - uint16* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryShortArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_UINT32: - { - uint32* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryLongArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_UINT64: - { - uint64* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryLong8Array(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_FLOAT: - { - float* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryFloatArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_DOUBLE: - { - double* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryDoubleArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C16_IFD8: - { - uint64* data; - assert(fip->field_readcount==TIFF_VARIABLE); - assert(fip->field_passcount==1); - if (dp->tdir_count>0xFFFF) - err=TIFFReadDirEntryErrCount; - else - { - err=TIFFReadDirEntryIfd8Array(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - } - break; - case TIFF_SETGET_C32_ASCII: - { - uint8* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_UINT8: - { - uint8* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryByteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_SINT8: - { - int8* data = NULL; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntrySbyteArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_UINT16: - { - uint16* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryShortArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_SINT16: - { - int16* data = NULL; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntrySshortArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_UINT32: - { - uint32* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryLongArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_SINT32: - { - int32* data = NULL; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntrySlongArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_UINT64: - { - uint64* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryLong8Array(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_SINT64: - { - int64* data = NULL; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntrySlong8Array(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_FLOAT: - { - float* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryFloatArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_DOUBLE: - { - double* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryDoubleArray(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - case TIFF_SETGET_C32_IFD8: - { - uint64* data; - assert(fip->field_readcount==TIFF_VARIABLE2); - assert(fip->field_passcount==1); - err=TIFFReadDirEntryIfd8Array(tif,dp,&data); - if (err==TIFFReadDirEntryErrOk) - { - int m; - m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data); - if (data!=0) - _TIFFfree(data); - if (!m) - return(0); - } - } - break; - default: - assert(0); /* we should never get here */ - break; - } - if (err!=TIFFReadDirEntryErrOk) - { - TIFFReadDirEntryOutputErr(tif,err,module,fip->field_name,recover); - return(0); - } - return(1); -} - -/* - * Fetch a set of offsets or lengths. - * While this routine says "strips", in fact it's also used for tiles. - */ -static int -TIFFFetchStripThing(TIFF* tif, TIFFDirEntry* dir, uint32 nstrips, uint64** lpp) -{ - static const char module[] = "TIFFFetchStripThing"; - enum TIFFReadDirEntryErr err; - uint64* data; - err=TIFFReadDirEntryLong8Array(tif,dir,&data); - if (err!=TIFFReadDirEntryErrOk) - { - const TIFFField* fip = TIFFFieldWithTag(tif,dir->tdir_tag); - TIFFReadDirEntryOutputErr(tif,err,module,fip ? fip->field_name : "unknown tagname",0); - return(0); - } - if (dir->tdir_count!=(uint64)nstrips) - { - uint64* resizeddata; - resizeddata=(uint64*)_TIFFCheckMalloc(tif,nstrips,sizeof(uint64),"for strip array"); - if (resizeddata==0) { - _TIFFfree(data); - return(0); - } - if (dir->tdir_count<(uint64)nstrips) - { - _TIFFmemcpy(resizeddata,data,(uint32)dir->tdir_count*sizeof(uint64)); - _TIFFmemset(resizeddata+(uint32)dir->tdir_count,0,(nstrips-(uint32)dir->tdir_count)*sizeof(uint64)); - } - else - _TIFFmemcpy(resizeddata,data,nstrips*sizeof(uint64)); - _TIFFfree(data); - data=resizeddata; - } - *lpp=data; - return(1); -} - -/* - * Fetch and set the SubjectDistance EXIF tag. - */ -static int -TIFFFetchSubjectDistance(TIFF* tif, TIFFDirEntry* dir) -{ - static const char module[] = "TIFFFetchSubjectDistance"; - enum TIFFReadDirEntryErr err; - UInt64Aligned_t m; - m.l=0; - assert(sizeof(double)==8); - assert(sizeof(uint64)==8); - assert(sizeof(uint32)==4); - if (dir->tdir_count!=1) - err=TIFFReadDirEntryErrCount; - else if (dir->tdir_type!=TIFF_RATIONAL) - err=TIFFReadDirEntryErrType; - else - { - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 offset; - offset=*(uint32*)(&dir->tdir_offset); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&offset); - err=TIFFReadDirEntryData(tif,offset,8,m.i); - } - else - { - m.l=dir->tdir_offset.toff_long8; - err=TIFFReadDirEntryErrOk; - } - } - if (err==TIFFReadDirEntryErrOk) - { - double n; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(m.i,2); - if (m.i[0]==0) - n=0.0; - else if (m.i[0]==0xFFFFFFFF) - /* - * XXX: Numerator 0xFFFFFFFF means that we have infinite - * distance. Indicate that with a negative floating point - * SubjectDistance value. - */ - n=-1.0; - else - n=(double)m.i[0]/(double)m.i[1]; - return(TIFFSetField(tif,dir->tdir_tag,n)); - } - else - { - TIFFReadDirEntryOutputErr(tif,err,module,"SubjectDistance",TRUE); - return(0); - } -} - -/* - * Replace a single strip (tile) of uncompressed data by multiple strips - * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for - * dealing with large images or for dealing with machines with a limited - * amount memory. - */ -static void -ChopUpSingleUncompressedStrip(TIFF* tif) -{ - register TIFFDirectory *td = &tif->tif_dir; - uint64 bytecount; - uint64 offset; - uint32 rowblock; - uint64 rowblockbytes; - uint64 stripbytes; - uint32 strip; - uint64 nstrips64; - uint32 nstrips32; - uint32 rowsperstrip; - uint64* newcounts; - uint64* newoffsets; - - bytecount = td->td_stripbytecount[0]; - offset = td->td_stripoffset[0]; - assert(td->td_planarconfig == PLANARCONFIG_CONTIG); - if ((td->td_photometric == PHOTOMETRIC_YCBCR)&& - (!isUpSampled(tif))) - rowblock = td->td_ycbcrsubsampling[1]; - else - rowblock = 1; - rowblockbytes = TIFFVTileSize64(tif, rowblock); - /* - * Make the rows hold at least one scanline, but fill specified amount - * of data if possible. - */ - if (rowblockbytes > STRIP_SIZE_DEFAULT) { - stripbytes = rowblockbytes; - rowsperstrip = rowblock; - } else if (rowblockbytes > 0 ) { - uint32 rowblocksperstrip; - rowblocksperstrip = (uint32) (STRIP_SIZE_DEFAULT / rowblockbytes); - rowsperstrip = rowblocksperstrip * rowblock; - stripbytes = rowblocksperstrip * rowblockbytes; - } - else - return; - - /* - * never increase the number of strips in an image - */ - if (rowsperstrip >= td->td_rowsperstrip) - return; - nstrips64 = TIFFhowmany_64(bytecount, stripbytes); - if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */ - return; - nstrips32 = (uint32)nstrips64; - - newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), - "for chopped \"StripByteCounts\" array"); - newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64), - "for chopped \"StripOffsets\" array"); - if (newcounts == NULL || newoffsets == NULL) { - /* - * Unable to allocate new strip information, give up and use - * the original one strip information. - */ - if (newcounts != NULL) - _TIFFfree(newcounts); - if (newoffsets != NULL) - _TIFFfree(newoffsets); - return; - } - /* - * Fill the strip information arrays with new bytecounts and offsets - * that reflect the broken-up format. - */ - for (strip = 0; strip < nstrips32; strip++) { - if (stripbytes > bytecount) - stripbytes = bytecount; - newcounts[strip] = stripbytes; - newoffsets[strip] = offset; - offset += stripbytes; - bytecount -= stripbytes; - } - /* - * Replace old single strip info with multi-strip info. - */ - td->td_stripsperimage = td->td_nstrips = nstrips32; - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - _TIFFfree(td->td_stripbytecount); - _TIFFfree(td->td_stripoffset); - td->td_stripbytecount = newcounts; - td->td_stripoffset = newoffsets; - td->td_stripbytecountsorted = 1; -} - -int _TIFFFillStriles( TIFF *tif ) -{ -#if defined(DEFER_STRILE_LOAD) - register TIFFDirectory *td = &tif->tif_dir; - int return_value = 1; - - if( td->td_stripoffset != NULL ) - return 1; - - if( td->td_stripoffset_entry.tdir_count == 0 ) - return 0; - - if (!TIFFFetchStripThing(tif,&(td->td_stripoffset_entry), - td->td_nstrips,&td->td_stripoffset)) - { - return_value = 0; - } - - if (!TIFFFetchStripThing(tif,&(td->td_stripbytecount_entry), - td->td_nstrips,&td->td_stripbytecount)) - { - return_value = 0; - } - - _TIFFmemset( &(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); - _TIFFmemset( &(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); - - if (tif->tif_dir.td_nstrips > 1 && return_value == 1 ) { - uint32 strip; - - tif->tif_dir.td_stripbytecountsorted = 1; - for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) { - if (tif->tif_dir.td_stripoffset[strip - 1] > - tif->tif_dir.td_stripoffset[strip]) { - tif->tif_dir.td_stripbytecountsorted = 0; - break; - } - } - } - - return return_value; -#else /* !defined(DEFER_STRILE_LOAD) */ - (void) tif; - return 1; -#endif -} - - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dirwrite.c b/tiff/libtiff/tif_dirwrite.c deleted file mode 100755 index a1b6e52..0000000 --- a/tiff/libtiff/tif_dirwrite.c +++ /dev/null @@ -1,2910 +0,0 @@ -/* $Id: tif_dirwrite.c,v 1.77 2012-07-06 19:18:31 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Directory Write Support Routines. - */ -#include "tiffiop.h" - -#ifdef HAVE_IEEEFP -#define TIFFCvtNativeToIEEEFloat(tif, n, fp) -#define TIFFCvtNativeToIEEEDouble(tif, n, dp) -#else -extern void TIFFCvtNativeToIEEEFloat(TIFF* tif, uint32 n, float* fp); -extern void TIFFCvtNativeToIEEEDouble(TIFF* tif, uint32 n, double* dp); -#endif - -static int TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff); - -static int TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value); -#if 0 -static int TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -#endif - -static int TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, char* value); -static int TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value); -#ifdef notdef -static int TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value); -#endif -static int TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value); -#if 0 -static int TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value); -#endif -#ifdef notdef -static int TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value); -#endif -static int TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int8* value); -#if 0 -static int TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value); -#endif -static int TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value); -static int TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint16* value); -static int TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value); -#ifdef notdef -static int TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value); -#endif -static int TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int16* value); -#if 0 -static int TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value); -#endif -static int TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value); -static int TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value); -#if 0 -static int TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value); -#endif -#ifdef notdef -static int TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value); -#endif -static int TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int32* value); -#if 0 -static int TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value); -#endif -#ifdef notdef -static int TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint64 value); -#endif -static int TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -#ifdef notdef -static int TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int64 value); -#endif -static int TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int64* value); -static int TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -static int TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -static int TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -#ifdef notdef -static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value); -#endif -static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -#if 0 -static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value); -#endif -#ifdef notdef -static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -#endif -static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value); -#if 0 -static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -#endif -static int TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value); -#ifdef notdef -static int TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -#endif -static int TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value); -static int TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -static int TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -#ifdef notdef -static int TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -#endif -static int TIFFWriteDirectoryTagColormap(TIFF* tif, uint32* ndir, TIFFDirEntry* dir); -static int TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir); -static int TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir); - -static int TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, char* value); -static int TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value); -#endif -static int TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value); -#endif -static int TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int8* value); -static int TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value); -static int TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint16* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value); -#endif -static int TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int16* value); -static int TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value); -static int TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value); -#endif -static int TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int32* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint64 value); -#endif -static int TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int64 value); -#endif -static int TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int64* value); -static int TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -static int TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -static int TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value); -#endif -static int TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value); -#ifdef notdef -static int TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value); -#endif -static int TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value); -static int TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value); -static int TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value); - -static int TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 datatype, uint32 count, uint32 datalength, void* data); - -static int TIFFLinkDirectory(TIFF*); - -/* - * Write the contents of the current directory - * to the specified file. This routine doesn't - * handle overwriting a directory with auxiliary - * storage that's been changed. - */ -int -TIFFWriteDirectory(TIFF* tif) -{ - return TIFFWriteDirectorySec(tif,TRUE,TRUE,NULL); -} - -/* - * Similar to TIFFWriteDirectory(), writes the directory out - * but leaves all data structures in memory so that it can be - * written again. This will make a partially written TIFF file - * readable before it is successfully completed/closed. - */ -int -TIFFCheckpointDirectory(TIFF* tif) -{ - int rc; - /* Setup the strips arrays, if they haven't already been. */ - if (tif->tif_dir.td_stripoffset == NULL) - (void) TIFFSetupStrips(tif); - rc = TIFFWriteDirectorySec(tif,TRUE,FALSE,NULL); - (void) TIFFSetWriteOffset(tif, TIFFSeekFile(tif, 0, SEEK_END)); - return rc; -} - -int -TIFFWriteCustomDirectory(TIFF* tif, uint64* pdiroff) -{ - return TIFFWriteDirectorySec(tif,FALSE,FALSE,pdiroff); -} - -/* - * Similar to TIFFWriteDirectory(), but if the directory has already - * been written once, it is relocated to the end of the file, in case it - * has changed in size. Note that this will result in the loss of the - * previously used directory space. - */ -int -TIFFRewriteDirectory( TIFF *tif ) -{ - static const char module[] = "TIFFRewriteDirectory"; - - /* We don't need to do anything special if it hasn't been written. */ - if( tif->tif_diroff == 0 ) - return TIFFWriteDirectory( tif ); - - /* - * Find and zero the pointer to this directory, so that TIFFLinkDirectory - * will cause it to be added after this directories current pre-link. - */ - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (tif->tif_header.classic.tiff_diroff == tif->tif_diroff) - { - tif->tif_header.classic.tiff_diroff = 0; - tif->tif_diroff = 0; - - TIFFSeekFile(tif,4,SEEK_SET); - if (!WriteOK(tif, &(tif->tif_header.classic.tiff_diroff),4)) - { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Error updating TIFF header"); - return (0); - } - } - else - { - uint32 nextdir; - nextdir = tif->tif_header.classic.tiff_diroff; - while(1) { - uint16 dircount; - uint32 nextnextdir; - - if (!SeekOK(tif, nextdir) || - !ReadOK(tif, &dircount, 2)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - (void) TIFFSeekFile(tif, - nextdir+2+dircount*12, SEEK_SET); - if (!ReadOK(tif, &nextnextdir, 4)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory link"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextnextdir); - if (nextnextdir==tif->tif_diroff) - { - uint32 m; - m=0; - (void) TIFFSeekFile(tif, - nextdir+2+dircount*12, SEEK_SET); - if (!WriteOK(tif, &m, 4)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - tif->tif_diroff=0; - break; - } - nextdir=nextnextdir; - } - } - } - else - { - if (tif->tif_header.big.tiff_diroff == tif->tif_diroff) - { - tif->tif_header.big.tiff_diroff = 0; - tif->tif_diroff = 0; - - TIFFSeekFile(tif,8,SEEK_SET); - if (!WriteOK(tif, &(tif->tif_header.big.tiff_diroff),8)) - { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Error updating TIFF header"); - return (0); - } - } - else - { - uint64 nextdir; - nextdir = tif->tif_header.big.tiff_diroff; - while(1) { - uint64 dircount64; - uint16 dircount; - uint64 nextnextdir; - - if (!SeekOK(tif, nextdir) || - !ReadOK(tif, &dircount64, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>0xFFFF) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on tag count failed, likely corrupt TIFF"); - return (0); - } - dircount=(uint16)dircount64; - (void) TIFFSeekFile(tif, - nextdir+8+dircount*20, SEEK_SET); - if (!ReadOK(tif, &nextnextdir, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory link"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&nextnextdir); - if (nextnextdir==tif->tif_diroff) - { - uint64 m; - m=0; - (void) TIFFSeekFile(tif, - nextdir+8+dircount*20, SEEK_SET); - if (!WriteOK(tif, &m, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - tif->tif_diroff=0; - break; - } - nextdir=nextnextdir; - } - } - } - - /* - * Now use TIFFWriteDirectory() normally. - */ - - return TIFFWriteDirectory( tif ); -} - -static int -TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff) -{ - static const char module[] = "TIFFWriteDirectorySec"; - uint32 ndir; - TIFFDirEntry* dir; - uint32 dirsize; - void* dirmem; - uint32 m; - if (tif->tif_mode == O_RDONLY) - return (1); - - _TIFFFillStriles( tif ); - - /* - * Clear write state so that subsequent images with - * different characteristics get the right buffers - * setup for them. - */ - if (imagedone) - { - if (tif->tif_flags & TIFF_POSTENCODE) - { - tif->tif_flags &= ~TIFF_POSTENCODE; - if (!(*tif->tif_postencode)(tif)) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Error post-encoding before directory write"); - return (0); - } - } - (*tif->tif_close)(tif); /* shutdown encoder */ - /* - * Flush any data that might have been written - * by the compression close+cleanup routines. But - * be careful not to write stuff if we didn't add data - * in the previous steps as the "rawcc" data may well be - * a previously read tile/strip in mixed read/write mode. - */ - if (tif->tif_rawcc > 0 - && (tif->tif_flags & TIFF_BEENWRITING) != 0 ) - { - if( !TIFFFlushData1(tif) ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Error flushing data before directory write"); - return (0); - } - } - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) - { - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawcc = 0; - tif->tif_rawdatasize = 0; - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = 0; - } - tif->tif_flags &= ~(TIFF_BEENWRITING|TIFF_BUFFERSETUP); - } - dir=NULL; - dirmem=NULL; - dirsize=0; - while (1) - { - ndir=0; - if (isimage) - { - if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) - { - if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGEWIDTH,tif->tif_dir.td_imagewidth)) - goto bad; - if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_IMAGELENGTH,tif->tif_dir.td_imagelength)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS)) - { - if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILEWIDTH,tif->tif_dir.td_tilewidth)) - goto bad; - if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_TILELENGTH,tif->tif_dir.td_tilelength)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_RESOLUTION)) - { - if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XRESOLUTION,tif->tif_dir.td_xresolution)) - goto bad; - if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YRESOLUTION,tif->tif_dir.td_yresolution)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_POSITION)) - { - if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_XPOSITION,tif->tif_dir.td_xposition)) - goto bad; - if (!TIFFWriteDirectoryTagRational(tif,&ndir,dir,TIFFTAG_YPOSITION,tif->tif_dir.td_yposition)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_SUBFILETYPE)) - { - if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_SUBFILETYPE,tif->tif_dir.td_subfiletype)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) - { - if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_BITSPERSAMPLE,tif->tif_dir.td_bitspersample)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_COMPRESSION)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_COMPRESSION,tif->tif_dir.td_compression)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PHOTOMETRIC,tif->tif_dir.td_photometric)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_THRESHHOLDING)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_THRESHHOLDING,tif->tif_dir.td_threshholding)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_FILLORDER)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_FILLORDER,tif->tif_dir.td_fillorder)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_ORIENTATION)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_ORIENTATION,tif->tif_dir.td_orientation)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_SAMPLESPERPIXEL,tif->tif_dir.td_samplesperpixel)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP)) - { - if (!TIFFWriteDirectoryTagShortLong(tif,&ndir,dir,TIFFTAG_ROWSPERSTRIP,tif->tif_dir.td_rowsperstrip)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE)) - { - if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MINSAMPLEVALUE,tif->tif_dir.td_minsamplevalue)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE)) - { - if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_MAXSAMPLEVALUE,tif->tif_dir.td_maxsamplevalue)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_PLANARCONFIG)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_PLANARCONFIG,tif->tif_dir.td_planarconfig)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_RESOLUTIONUNIT,tif->tif_dir.td_resolutionunit)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_PAGENUMBER)) - { - if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_PAGENUMBER,2,&tif->tif_dir.td_pagenumber[0])) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_STRIPBYTECOUNTS)) - { - if (!isTiled(tif)) - { - if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount)) - goto bad; - } - else - { - if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEBYTECOUNTS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripbytecount)) - goto bad; - } - } - if (TIFFFieldSet(tif,FIELD_STRIPOFFSETS)) - { - if (!isTiled(tif)) - { - if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_STRIPOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset)) - goto bad; - } - else - { - if (!TIFFWriteDirectoryTagLongLong8Array(tif,&ndir,dir,TIFFTAG_TILEOFFSETS,tif->tif_dir.td_nstrips,tif->tif_dir.td_stripoffset)) - goto bad; - } - } - if (TIFFFieldSet(tif,FIELD_COLORMAP)) - { - if (!TIFFWriteDirectoryTagColormap(tif,&ndir,dir)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES)) - { - if (tif->tif_dir.td_extrasamples) - { - uint16 na; - uint16* nb; - TIFFGetFieldDefaulted(tif,TIFFTAG_EXTRASAMPLES,&na,&nb); - if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_EXTRASAMPLES,na,nb)) - goto bad; - } - } - if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT)) - { - if (!TIFFWriteDirectoryTagShortPerSample(tif,&ndir,dir,TIFFTAG_SAMPLEFORMAT,tif->tif_dir.td_sampleformat)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE)) - { - if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMINSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_sminsamplevalue)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE)) - { - if (!TIFFWriteDirectoryTagSampleformatArray(tif,&ndir,dir,TIFFTAG_SMAXSAMPLEVALUE,tif->tif_dir.td_samplesperpixel,tif->tif_dir.td_smaxsamplevalue)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH)) - { - if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_IMAGEDEPTH,tif->tif_dir.td_imagedepth)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_TILEDEPTH)) - { - if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,TIFFTAG_TILEDEPTH,tif->tif_dir.td_tiledepth)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS)) - { - if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_HALFTONEHINTS,2,&tif->tif_dir.td_halftonehints[0])) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING)) - { - if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,TIFFTAG_YCBCRSUBSAMPLING,2,&tif->tif_dir.td_ycbcrsubsampling[0])) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING)) - { - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,TIFFTAG_YCBCRPOSITIONING,tif->tif_dir.td_ycbcrpositioning)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_REFBLACKWHITE)) - { - if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,TIFFTAG_REFERENCEBLACKWHITE,6,tif->tif_dir.td_refblackwhite)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION)) - { - if (!TIFFWriteDirectoryTagTransferfunction(tif,&ndir,dir)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_INKNAMES)) - { - if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,TIFFTAG_INKNAMES,tif->tif_dir.td_inknameslen,tif->tif_dir.td_inknames)) - goto bad; - } - if (TIFFFieldSet(tif,FIELD_SUBIFD)) - { - if (!TIFFWriteDirectoryTagSubifd(tif,&ndir,dir)) - goto bad; - } - { - uint32 n; - for (n=0; ntif_nfields; n++) { - const TIFFField* o; - o = tif->tif_fields[n]; - if ((o->field_bit>=FIELD_CODEC)&&(TIFFFieldSet(tif,o->field_bit))) - { - switch (o->get_field_type) - { - case TIFF_SETGET_ASCII: - { - uint32 pa; - char* pb; - assert(o->field_type==TIFF_ASCII); - assert(o->field_readcount==TIFF_VARIABLE); - assert(o->field_passcount==0); - TIFFGetField(tif,o->field_tag,&pb); - pa=(uint32)(strlen(pb)); - if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,o->field_tag,pa,pb)) - goto bad; - } - break; - case TIFF_SETGET_UINT16: - { - uint16 p; - assert(o->field_type==TIFF_SHORT); - assert(o->field_readcount==1); - assert(o->field_passcount==0); - TIFFGetField(tif,o->field_tag,&p); - if (!TIFFWriteDirectoryTagShort(tif,&ndir,dir,o->field_tag,p)) - goto bad; - } - break; - case TIFF_SETGET_UINT32: - { - uint32 p; - assert(o->field_type==TIFF_LONG); - assert(o->field_readcount==1); - assert(o->field_passcount==0); - TIFFGetField(tif,o->field_tag,&p); - if (!TIFFWriteDirectoryTagLong(tif,&ndir,dir,o->field_tag,p)) - goto bad; - } - break; - case TIFF_SETGET_C32_UINT8: - { - uint32 pa; - void* pb; - assert(o->field_type==TIFF_UNDEFINED); - assert(o->field_readcount==TIFF_VARIABLE2); - assert(o->field_passcount==1); - TIFFGetField(tif,o->field_tag,&pa,&pb); - if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,o->field_tag,pa,pb)) - goto bad; - } - break; - default: - assert(0); /* we should never get here */ - break; - } - } - } - } - } - for (m=0; m<(uint32)(tif->tif_dir.td_customValueCount); m++) - { - switch (tif->tif_dir.td_customValues[m].info->field_type) - { - case TIFF_ASCII: - if (!TIFFWriteDirectoryTagAscii(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_UNDEFINED: - if (!TIFFWriteDirectoryTagUndefinedArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_BYTE: - if (!TIFFWriteDirectoryTagByteArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SBYTE: - if (!TIFFWriteDirectoryTagSbyteArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SHORT: - if (!TIFFWriteDirectoryTagShortArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SSHORT: - if (!TIFFWriteDirectoryTagSshortArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_LONG: - if (!TIFFWriteDirectoryTagLongArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SLONG: - if (!TIFFWriteDirectoryTagSlongArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_LONG8: - if (!TIFFWriteDirectoryTagLong8Array(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SLONG8: - if (!TIFFWriteDirectoryTagSlong8Array(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_RATIONAL: - if (!TIFFWriteDirectoryTagRationalArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_SRATIONAL: - if (!TIFFWriteDirectoryTagSrationalArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_FLOAT: - if (!TIFFWriteDirectoryTagFloatArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_DOUBLE: - if (!TIFFWriteDirectoryTagDoubleArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_IFD: - if (!TIFFWriteDirectoryTagIfdArray(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - case TIFF_IFD8: - if (!TIFFWriteDirectoryTagIfdIfd8Array(tif,&ndir,dir,tif->tif_dir.td_customValues[m].info->field_tag,tif->tif_dir.td_customValues[m].count,tif->tif_dir.td_customValues[m].value)) - goto bad; - break; - default: - assert(0); /* we should never get here */ - break; - } - } - if (dir!=NULL) - break; - dir=_TIFFmalloc(ndir*sizeof(TIFFDirEntry)); - if (dir==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - goto bad; - } - if (isimage) - { - if ((tif->tif_diroff==0)&&(!TIFFLinkDirectory(tif))) - goto bad; - } - else - tif->tif_diroff=(TIFFSeekFile(tif,0,SEEK_END)+1)&(~1); - if (pdiroff!=NULL) - *pdiroff=tif->tif_diroff; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - dirsize=2+ndir*12+4; - else - dirsize=8+ndir*20+8; - tif->tif_dataoff=tif->tif_diroff+dirsize; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - tif->tif_dataoff=(uint32)tif->tif_dataoff; - if ((tif->tif_dataofftif_diroff)||(tif->tif_dataoff<(uint64)dirsize)) - { - TIFFErrorExt(tif->tif_clientdata,module,"Maximum TIFF file size exceeded"); - goto bad; - } - if (tif->tif_dataoff&1) - tif->tif_dataoff++; - if (isimage) - tif->tif_curdir++; - } - if (isimage) - { - if (TIFFFieldSet(tif,FIELD_SUBIFD)&&(tif->tif_subifdoff==0)) - { - uint32 na; - TIFFDirEntry* nb; - for (na=0, nb=dir; ; na++, nb++) - { - assert(natdir_tag==TIFFTAG_SUBIFD) - break; - } - if (!(tif->tif_flags&TIFF_BIGTIFF)) - tif->tif_subifdoff=tif->tif_diroff+2+na*12+8; - else - tif->tif_subifdoff=tif->tif_diroff+8+na*20+12; - } - } - dirmem=_TIFFmalloc(dirsize); - if (dirmem==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - goto bad; - } - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint8* n; - uint32 nTmp; - TIFFDirEntry* o; - n=dirmem; - *(uint16*)n=ndir; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)n); - n+=2; - o=dir; - for (m=0; mtdir_tag; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)n); - n+=2; - *(uint16*)n=o->tdir_type; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)n); - n+=2; - nTmp = (uint32)o->tdir_count; - _TIFFmemcpy(n,&nTmp,4); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)n); - n+=4; - /* This is correct. The data has been */ - /* swabbed previously in TIFFWriteDirectoryTagData */ - _TIFFmemcpy(n,&o->tdir_offset,4); - n+=4; - o++; - } - nTmp = (uint32)tif->tif_nextdiroff; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&nTmp); - _TIFFmemcpy(n,&nTmp,4); - } - else - { - uint8* n; - TIFFDirEntry* o; - n=dirmem; - *(uint64*)n=ndir; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)n); - n+=8; - o=dir; - for (m=0; mtdir_tag; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)n); - n+=2; - *(uint16*)n=o->tdir_type; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)n); - n+=2; - _TIFFmemcpy(n,&o->tdir_count,8); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)n); - n+=8; - _TIFFmemcpy(n,&o->tdir_offset,8); - n+=8; - o++; - } - _TIFFmemcpy(n,&tif->tif_nextdiroff,8); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)n); - } - _TIFFfree(dir); - dir=NULL; - if (!SeekOK(tif,tif->tif_diroff)) - { - TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory"); - goto bad; - } - if (!WriteOK(tif,dirmem,(tmsize_t)dirsize)) - { - TIFFErrorExt(tif->tif_clientdata,module,"IO error writing directory"); - goto bad; - } - _TIFFfree(dirmem); - if (imagedone) - { - TIFFFreeDirectory(tif); - tif->tif_flags &= ~TIFF_DIRTYDIRECT; - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - (*tif->tif_cleanup)(tif); - /* - * Reset directory-related state for subsequent - * directories. - */ - TIFFCreateDirectory(tif); - } - return(1); -bad: - if (dir!=NULL) - _TIFFfree(dir); - if (dirmem!=NULL) - _TIFFfree(dirmem); - return(0); -} - -static int -TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value) -{ - static const char module[] = "TIFFWriteDirectoryTagSampleformatArray"; - void* conv; - uint32 i; - int ok; - conv = _TIFFmalloc(count*sizeof(double)); - if (conv == NULL) - { - TIFFErrorExt(tif->tif_clientdata, module, "Out of memory"); - return (0); - } - - switch (tif->tif_dir.td_sampleformat) - { - case SAMPLEFORMAT_IEEEFP: - if (tif->tif_dir.td_bitspersample<=32) - { - for (i = 0; i < count; ++i) - ((float*)conv)[i] = (float)value[i]; - ok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv); - } - else - { - ok = TIFFWriteDirectoryTagDoubleArray(tif,ndir,dir,tag,count,value); - } - break; - case SAMPLEFORMAT_INT: - if (tif->tif_dir.td_bitspersample<=8) - { - for (i = 0; i < count; ++i) - ((int8*)conv)[i] = (int8)value[i]; - ok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv); - } - else if (tif->tif_dir.td_bitspersample<=16) - { - for (i = 0; i < count; ++i) - ((int16*)conv)[i] = (int16)value[i]; - ok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv); - } - else - { - for (i = 0; i < count; ++i) - ((int32*)conv)[i] = (int32)value[i]; - ok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv); - } - break; - case SAMPLEFORMAT_UINT: - if (tif->tif_dir.td_bitspersample<=8) - { - for (i = 0; i < count; ++i) - ((uint8*)conv)[i] = (uint8)value[i]; - ok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv); - } - else if (tif->tif_dir.td_bitspersample<=16) - { - for (i = 0; i < count; ++i) - ((uint16*)conv)[i] = (uint16)value[i]; - ok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv); - } - else - { - for (i = 0; i < count; ++i) - ((uint32*)conv)[i] = (uint32)value[i]; - ok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv); - } - break; - default: - ok = 0; - } - - _TIFFfree(conv); - return (ok); -} - -#if 0 -static int -TIFFWriteDirectoryTagSampleformatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - switch (tif->tif_dir.td_sampleformat) - { - case SAMPLEFORMAT_IEEEFP: - if (tif->tif_dir.td_bitspersample<=32) - return(TIFFWriteDirectoryTagFloatPerSample(tif,ndir,dir,tag,(float)value)); - else - return(TIFFWriteDirectoryTagDoublePerSample(tif,ndir,dir,tag,value)); - case SAMPLEFORMAT_INT: - if (tif->tif_dir.td_bitspersample<=8) - return(TIFFWriteDirectoryTagSbytePerSample(tif,ndir,dir,tag,(int8)value)); - else if (tif->tif_dir.td_bitspersample<=16) - return(TIFFWriteDirectoryTagSshortPerSample(tif,ndir,dir,tag,(int16)value)); - else - return(TIFFWriteDirectoryTagSlongPerSample(tif,ndir,dir,tag,(int32)value)); - case SAMPLEFORMAT_UINT: - if (tif->tif_dir.td_bitspersample<=8) - return(TIFFWriteDirectoryTagBytePerSample(tif,ndir,dir,tag,(uint8)value)); - else if (tif->tif_dir.td_bitspersample<=16) - return(TIFFWriteDirectoryTagShortPerSample(tif,ndir,dir,tag,(uint16)value)); - else - return(TIFFWriteDirectoryTagLongPerSample(tif,ndir,dir,tag,(uint32)value)); - default: - return(1); - } -} -#endif - -static int -TIFFWriteDirectoryTagAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, char* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedAscii(tif,ndir,dir,tag,count,value)); -} - -static int -TIFFWriteDirectoryTagUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedUndefinedArray(tif,ndir,dir,tag,count,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedByte(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int -TIFFWriteDirectoryTagBytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value) -{ - static const char module[] = "TIFFWriteDirectoryTagBytePerSample"; - uint8* m; - uint8* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint8)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedByteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -#ifdef notdef -static int -TIFFWriteDirectoryTagSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSbyte(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int8* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int -TIFFWriteDirectoryTagSbytePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value) -{ - static const char module[] = "TIFFWriteDirectoryTagSbytePerSample"; - int8* m; - int8* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int8)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedSbyteArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -static int -TIFFWriteDirectoryTagShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,value)); -} - -static int -TIFFWriteDirectoryTagShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint16* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,count,value)); -} - -static int -TIFFWriteDirectoryTagShortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value) -{ - static const char module[] = "TIFFWriteDirectoryTagShortPerSample"; - uint16* m; - uint16* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint16)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSshort(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int16* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int -TIFFWriteDirectoryTagSshortPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value) -{ - static const char module[] = "TIFFWriteDirectoryTagSshortPerSample"; - int16* m; - int16* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int16)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedSshortArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -static int -TIFFWriteDirectoryTagLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value)); -} - -static int -TIFFWriteDirectoryTagLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int -TIFFWriteDirectoryTagLongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value) -{ - static const char module[] = "TIFFWriteDirectoryTagLongPerSample"; - uint32* m; - uint32* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(uint32)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -#ifdef notdef -static int -TIFFWriteDirectoryTagSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSlong(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int32* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int -TIFFWriteDirectoryTagSlongPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value) -{ - static const char module[] = "TIFFWriteDirectoryTagSlongPerSample"; - int32* m; - int32* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(int32)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedSlongArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -#ifdef notdef -static int -TIFFWriteDirectoryTagLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint64 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedLong8(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir,tag,count,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int64 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSlong8(tif,ndir,dir,tag,value)); -} -#endif - -static int -TIFFWriteDirectoryTagSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int64* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSlong8Array(tif,ndir,dir,tag,count,value)); -} - -static int -TIFFWriteDirectoryTagRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedRational(tif,ndir,dir,tag,value)); -} - -static int -TIFFWriteDirectoryTagRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedRationalArray(tif,ndir,dir,tag,count,value)); -} - -static int -TIFFWriteDirectoryTagSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedSrationalArray(tif,ndir,dir,tag,count,value)); -} - -#ifdef notdef -static int TIFFWriteDirectoryTagFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedFloat(tif,ndir,dir,tag,value)); -} -#endif - -static int TIFFWriteDirectoryTagFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int TIFFWriteDirectoryTagFloatPerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value) -{ - static const char module[] = "TIFFWriteDirectoryTagFloatPerSample"; - float* m; - float* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(float)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedFloatArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -#ifdef notdef -static int TIFFWriteDirectoryTagDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedDouble(tif,ndir,dir,tag,value)); -} -#endif - -static int TIFFWriteDirectoryTagDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,count,value)); -} - -#if 0 -static int TIFFWriteDirectoryTagDoublePerSample(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - static const char module[] = "TIFFWriteDirectoryTagDoublePerSample"; - double* m; - double* na; - uint16 nb; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=_TIFFmalloc(tif->tif_dir.td_samplesperpixel*sizeof(double)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=m, nb=0; nbtif_dir.td_samplesperpixel; na++, nb++) - *na=value; - o=TIFFWriteDirectoryTagCheckedDoubleArray(tif,ndir,dir,tag,tif->tif_dir.td_samplesperpixel,m); - _TIFFfree(m); - return(o); -} -#endif - -static int -TIFFWriteDirectoryTagIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - return(TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,tag,count,value)); -} -#endif - -static int -TIFFWriteDirectoryTagShortLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value) -{ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - if (value<=0xFFFF) - return(TIFFWriteDirectoryTagCheckedShort(tif,ndir,dir,tag,(uint16)value)); - else - return(TIFFWriteDirectoryTagCheckedLong(tif,ndir,dir,tag,value)); -} - -/************************************************************************/ -/* TIFFWriteDirectoryTagLongLong8Array() */ -/* */ -/* Write out LONG8 array as LONG8 for BigTIFF or LONG for */ -/* Classic TIFF with some checking. */ -/************************************************************************/ - -static int -TIFFWriteDirectoryTagLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - static const char module[] = "TIFFWriteDirectoryTagLongLong8Array"; - uint64* ma; - uint32 mb; - uint32* p; - uint32* q; - int o; - - /* is this just a counting pass? */ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - - /* We always write LONG8 for BigTIFF, no checking needed. */ - if( tif->tif_flags&TIFF_BIGTIFF ) - return TIFFWriteDirectoryTagCheckedLong8Array(tif,ndir,dir, - tag,count,value); - - /* - ** For classic tiff we want to verify everything is in range for LONG - ** and convert to long format. - */ - - p = _TIFFmalloc(count*sizeof(uint32)); - if (p==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - - for (q=p, ma=value, mb=0; mb0xFFFFFFFF) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file."); - _TIFFfree(p); - return(0); - } - *q= (uint32)(*ma); - } - - o=TIFFWriteDirectoryTagCheckedLongArray(tif,ndir,dir,tag,count,p); - _TIFFfree(p); - - return(o); -} - -/************************************************************************/ -/* TIFFWriteDirectoryTagIfdIfd8Array() */ -/* */ -/* Write either IFD8 or IFD array depending on file type. */ -/************************************************************************/ - -static int -TIFFWriteDirectoryTagIfdIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - static const char module[] = "TIFFWriteDirectoryTagIfdIfd8Array"; - uint64* ma; - uint32 mb; - uint32* p; - uint32* q; - int o; - - /* is this just a counting pass? */ - if (dir==NULL) - { - (*ndir)++; - return(1); - } - - /* We always write IFD8 for BigTIFF, no checking needed. */ - if( tif->tif_flags&TIFF_BIGTIFF ) - return TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir, - tag,count,value); - - /* - ** For classic tiff we want to verify everything is in range for IFD - ** and convert to long format. - */ - - p = _TIFFmalloc(count*sizeof(uint32)); - if (p==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - - for (q=p, ma=value, mb=0; mb0xFFFFFFFF) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file."); - _TIFFfree(p); - return(0); - } - *q= (uint32)(*ma); - } - - o=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,tag,count,p); - _TIFFfree(p); - - return(o); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagShortLongLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - static const char module[] = "TIFFWriteDirectoryTagShortLongLong8Array"; - uint64* ma; - uint32 mb; - uint8 n; - int o; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - n=0; - for (ma=value, mb=0; mb0xFFFF)) - n=1; - if ((n==1)&&(*ma>0xFFFFFFFF)) - { - n=2; - break; - } - } - if (n==0) - { - uint16* p; - uint16* q; - p=_TIFFmalloc(count*sizeof(uint16)); - if (p==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (ma=value, mb=0, q=p; mbtif_clientdata,module,"Out of memory"); - return(0); - } - for (ma=value, mb=0, q=p; mbtif_dir.td_bitspersample); - n=_TIFFmalloc(3*m*sizeof(uint16)); - if (n==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - _TIFFmemcpy(&n[0],tif->tif_dir.td_colormap[0],m*sizeof(uint16)); - _TIFFmemcpy(&n[m],tif->tif_dir.td_colormap[1],m*sizeof(uint16)); - _TIFFmemcpy(&n[2*m],tif->tif_dir.td_colormap[2],m*sizeof(uint16)); - o=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_COLORMAP,3*m,n); - _TIFFfree(n); - return(o); -} - -static int -TIFFWriteDirectoryTagTransferfunction(TIFF* tif, uint32* ndir, TIFFDirEntry* dir) -{ - static const char module[] = "TIFFWriteDirectoryTagTransferfunction"; - uint32 m; - uint16 n; - uint16* o; - int p; - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=(1<tif_dir.td_bitspersample); - n=tif->tif_dir.td_samplesperpixel-tif->tif_dir.td_extrasamples; - /* - * Check if the table can be written as a single column, - * or if it must be written as 3 columns. Note that we - * write a 3-column tag if there are 2 samples/pixel and - * a single column of data won't suffice--hmm. - */ - if (n>3) - n=3; - if (n==3) - { - if (!_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16))) - n=2; - } - if (n==2) - { - if (!_TIFFmemcmp(tif->tif_dir.td_transferfunction[0],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16))) - n=1; - } - if (n==0) - n=1; - o=_TIFFmalloc(n*m*sizeof(uint16)); - if (o==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - _TIFFmemcpy(&o[0],tif->tif_dir.td_transferfunction[0],m*sizeof(uint16)); - if (n>1) - _TIFFmemcpy(&o[m],tif->tif_dir.td_transferfunction[1],m*sizeof(uint16)); - if (n>2) - _TIFFmemcpy(&o[2*m],tif->tif_dir.td_transferfunction[2],m*sizeof(uint16)); - p=TIFFWriteDirectoryTagCheckedShortArray(tif,ndir,dir,TIFFTAG_TRANSFERFUNCTION,n*m,o); - _TIFFfree(o); - return(p); -} - -static int -TIFFWriteDirectoryTagSubifd(TIFF* tif, uint32* ndir, TIFFDirEntry* dir) -{ - static const char module[] = "TIFFWriteDirectoryTagSubifd"; - uint64 m; - int n; - if (tif->tif_dir.td_nsubifd==0) - return(1); - if (dir==NULL) - { - (*ndir)++; - return(1); - } - m=tif->tif_dataoff; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32* o; - uint64* pa; - uint32* pb; - uint16 p; - o=_TIFFmalloc(tif->tif_dir.td_nsubifd*sizeof(uint32)); - if (o==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - pa=tif->tif_dir.td_subifd; - pb=o; - for (p=0; p < tif->tif_dir.td_nsubifd; p++) - { - assert(pa != 0); - assert(*pa <= 0xFFFFFFFFUL); - *pb++=(uint32)(*pa++); - } - n=TIFFWriteDirectoryTagCheckedIfdArray(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,o); - _TIFFfree(o); - } - else - n=TIFFWriteDirectoryTagCheckedIfd8Array(tif,ndir,dir,TIFFTAG_SUBIFD,tif->tif_dir.td_nsubifd,tif->tif_dir.td_subifd); - if (!n) - return(0); - /* - * Total hack: if this directory includes a SubIFD - * tag then force the next directories to be - * written as ``sub directories'' of this one. This - * is used to write things like thumbnails and - * image masks that one wants to keep out of the - * normal directory linkage access mechanism. - */ - tif->tif_flags|=TIFF_INSUBIFD; - tif->tif_nsubifd=tif->tif_dir.td_nsubifd; - if (tif->tif_dir.td_nsubifd==1) - tif->tif_subifdoff=0; - else - tif->tif_subifdoff=m; - return(1); -} - -static int -TIFFWriteDirectoryTagCheckedAscii(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, char* value) -{ - assert(sizeof(char)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_ASCII,count,count,value)); -} - -static int -TIFFWriteDirectoryTagCheckedUndefinedArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value) -{ - assert(sizeof(uint8)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_UNDEFINED,count,count,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedByte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint8 value) -{ - assert(sizeof(uint8)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,1,1,&value)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedByteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint8* value) -{ - assert(sizeof(uint8)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_BYTE,count,count,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedSbyte(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int8 value) -{ - assert(sizeof(int8)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,1,1,&value)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedSbyteArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int8* value) -{ - assert(sizeof(int8)==1); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SBYTE,count,count,value)); -} - -static int -TIFFWriteDirectoryTagCheckedShort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 value) -{ - uint16 m; - assert(sizeof(uint16)==2); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort(&m); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,1,2,&m)); -} - -static int -TIFFWriteDirectoryTagCheckedShortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint16* value) -{ - assert(count<0x80000000); - assert(sizeof(uint16)==2); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfShort(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SHORT,count,count*2,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedSshort(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int16 value) -{ - int16 m; - assert(sizeof(int16)==2); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort((uint16*)(&m)); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,1,2,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedSshortArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int16* value) -{ - assert(count<0x80000000); - assert(sizeof(int16)==2); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfShort((uint16*)value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SSHORT,count,count*2,value)); -} - -static int -TIFFWriteDirectoryTagCheckedLong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 value) -{ - uint32 m; - assert(sizeof(uint32)==4); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&m); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,1,4,&m)); -} - -static int -TIFFWriteDirectoryTagCheckedLongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value) -{ - assert(count<0x40000000); - assert(sizeof(uint32)==4); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG,count,count*4,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedSlong(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int32 value) -{ - int32 m; - assert(sizeof(int32)==4); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong((uint32*)(&m)); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,1,4,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedSlongArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int32* value) -{ - assert(count<0x40000000); - assert(sizeof(int32)==4); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong((uint32*)value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG,count,count*4,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedLong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint64 value) -{ - uint64 m; - assert(sizeof(uint64)==8); - assert(tif->tif_flags&TIFF_BIGTIFF); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(&m); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,1,8,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedLong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - assert(count<0x20000000); - assert(sizeof(uint64)==8); - assert(tif->tif_flags&TIFF_BIGTIFF); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedSlong8(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, int64 value) -{ - int64 m; - assert(sizeof(int64)==8); - assert(tif->tif_flags&TIFF_BIGTIFF); - m=value; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8((uint64*)(&m)); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,1,8,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, int64* value) -{ - assert(count<0x20000000); - assert(sizeof(int64)==8); - assert(tif->tif_flags&TIFF_BIGTIFF); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8((uint64*)value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value)); -} - -static int -TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - uint32 m[2]; - assert(value>=0.0); - assert(sizeof(uint32)==4); - if (value<=0.0) - { - m[0]=0; - m[1]=1; - } - else if (value==(double)(uint32)value) - { - m[0]=(uint32)value; - m[1]=1; - } - else if (value<1.0) - { - m[0]=(uint32)(value*0xFFFFFFFF); - m[1]=0xFFFFFFFF; - } - else - { - m[0]=0xFFFFFFFF; - m[1]=(uint32)(0xFFFFFFFF/value); - } - if (tif->tif_flags&TIFF_SWAB) - { - TIFFSwabLong(&m[0]); - TIFFSwabLong(&m[1]); - } - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,1,8,&m[0])); -} - -static int -TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - static const char module[] = "TIFFWriteDirectoryTagCheckedRationalArray"; - uint32* m; - float* na; - uint32* nb; - uint32 nc; - int o; - assert(sizeof(uint32)==4); - m=_TIFFmalloc(count*2*sizeof(uint32)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=value, nb=m, nc=0; nctif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(m,count*2); - o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_RATIONAL,count,count*8,&m[0]); - _TIFFfree(m); - return(o); -} - -static int -TIFFWriteDirectoryTagCheckedSrationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - static const char module[] = "TIFFWriteDirectoryTagCheckedSrationalArray"; - int32* m; - float* na; - int32* nb; - uint32 nc; - int o; - assert(sizeof(int32)==4); - m=_TIFFmalloc(count*2*sizeof(int32)); - if (m==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - for (na=value, nb=m, nc=0; nc-1.0) - { - nb[0]=-(int32)((-*na)*0x7FFFFFFF); - nb[1]=0x7FFFFFFF; - } - else - { - nb[0]=-0x7FFFFFFF; - nb[1]=(int32)(0x7FFFFFFF/(-*na)); - } - } - else - { - if (*na==(int32)(*na)) - { - nb[0]=(int32)(*na); - nb[1]=1; - } - else if (*na<1.0) - { - nb[0]=(int32)((*na)*0x7FFFFFFF); - nb[1]=0x7FFFFFFF; - } - else - { - nb[0]=0x7FFFFFFF; - nb[1]=(int32)(0x7FFFFFFF/(*na)); - } - } - } - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong((uint32*)m,count*2); - o=TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SRATIONAL,count,count*8,&m[0]); - _TIFFfree(m); - return(o); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedFloat(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, float value) -{ - float m; - assert(sizeof(float)==4); - m=value; - TIFFCvtNativeToIEEEFloat(tif,1,&m); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabFloat(&m); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,1,4,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedFloatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, float* value) -{ - assert(count<0x40000000); - assert(sizeof(float)==4); - TIFFCvtNativeToIEEEFloat(tif,count,&value); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfFloat(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_FLOAT,count,count*4,value)); -} - -#ifdef notdef -static int -TIFFWriteDirectoryTagCheckedDouble(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, double value) -{ - double m; - assert(sizeof(double)==8); - m=value; - TIFFCvtNativeToIEEEDouble(tif,1,&m); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabDouble(&m); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,1,8,&m)); -} -#endif - -static int -TIFFWriteDirectoryTagCheckedDoubleArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, double* value) -{ - assert(count<0x20000000); - assert(sizeof(double)==8); - TIFFCvtNativeToIEEEDouble(tif,count,&value); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfDouble(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_DOUBLE,count,count*8,value)); -} - -static int -TIFFWriteDirectoryTagCheckedIfdArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint32* value) -{ - assert(count<0x40000000); - assert(sizeof(uint32)==4); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD,count,count*4,value)); -} - -static int -TIFFWriteDirectoryTagCheckedIfd8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint32 count, uint64* value) -{ - assert(count<0x20000000); - assert(sizeof(uint64)==8); - assert(tif->tif_flags&TIFF_BIGTIFF); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabArrayOfLong8(value,count); - return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_IFD8,count,count*8,value)); -} - -static int -TIFFWriteDirectoryTagData(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, ttag_t tag, uint16 datatype, uint32 count, uint32 datalength, void* data) -{ - static const char module[] = "TIFFWriteDirectoryTagData"; - uint32 m; - m=0; - while (m<(*ndir)) - { - assert(dir[m].tdir_tag!=tag); - if (dir[m].tdir_tag>tag) - break; - m++; - } - if (m<(*ndir)) - { - uint32 n; - for (n=*ndir; n>m; n--) - dir[n]=dir[n-1]; - } - dir[m].tdir_tag=tag; - dir[m].tdir_type=datatype; - dir[m].tdir_count=count; - dir[m].tdir_offset.toff_long8 = 0; - if (datalength<=((tif->tif_flags&TIFF_BIGTIFF)?0x8U:0x4U)) - _TIFFmemcpy(&dir[m].tdir_offset,data,datalength); - else - { - uint64 na,nb; - na=tif->tif_dataoff; - nb=na+datalength; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - nb=(uint32)nb; - if ((nbtif_clientdata,module,"Maximum TIFF file size exceeded"); - return(0); - } - if (!SeekOK(tif,na)) - { - TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data"); - return(0); - } - assert(datalength<0x80000000UL); - if (!WriteOK(tif,data,(tmsize_t)datalength)) - { - TIFFErrorExt(tif->tif_clientdata,module,"IO error writing tag data"); - return(0); - } - tif->tif_dataoff=nb; - if (tif->tif_dataoff&1) - tif->tif_dataoff++; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 o; - o=(uint32)na; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong(&o); - _TIFFmemcpy(&dir[m].tdir_offset,&o,4); - } - else - { - dir[m].tdir_offset.toff_long8 = na; - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8(&dir[m].tdir_offset.toff_long8); - } - } - (*ndir)++; - return(1); -} - -/* - * Link the current directory into the directory chain for the file. - */ -static int -TIFFLinkDirectory(TIFF* tif) -{ - static const char module[] = "TIFFLinkDirectory"; - - tif->tif_diroff = (TIFFSeekFile(tif,0,SEEK_END)+1) &~ 1; - - /* - * Handle SubIFDs - */ - if (tif->tif_flags & TIFF_INSUBIFD) - { - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 m; - m = (uint32)tif->tif_diroff; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&m); - (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); - if (!WriteOK(tif, &m, 4)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing SubIFD directory link"); - return (0); - } - /* - * Advance to the next SubIFD or, if this is - * the last one configured, revert back to the - * normal directory linkage. - */ - if (--tif->tif_nsubifd) - tif->tif_subifdoff += 4; - else - tif->tif_flags &= ~TIFF_INSUBIFD; - return (1); - } - else - { - uint64 m; - m = tif->tif_diroff; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&m); - (void) TIFFSeekFile(tif, tif->tif_subifdoff, SEEK_SET); - if (!WriteOK(tif, &m, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing SubIFD directory link"); - return (0); - } - /* - * Advance to the next SubIFD or, if this is - * the last one configured, revert back to the - * normal directory linkage. - */ - if (--tif->tif_nsubifd) - tif->tif_subifdoff += 8; - else - tif->tif_flags &= ~TIFF_INSUBIFD; - return (1); - } - } - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 m; - uint32 nextdir; - m = (uint32)(tif->tif_diroff); - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&m); - if (tif->tif_header.classic.tiff_diroff == 0) { - /* - * First directory, overwrite offset in header. - */ - tif->tif_header.classic.tiff_diroff = (uint32) tif->tif_diroff; - (void) TIFFSeekFile(tif,4, SEEK_SET); - if (!WriteOK(tif, &m, 4)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Error writing TIFF header"); - return (0); - } - return (1); - } - /* - * Not the first directory, search to the last and append. - */ - nextdir = tif->tif_header.classic.tiff_diroff; - while(1) { - uint16 dircount; - uint32 nextnextdir; - - if (!SeekOK(tif, nextdir) || - !ReadOK(tif, &dircount, 2)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - (void) TIFFSeekFile(tif, - nextdir+2+dircount*12, SEEK_SET); - if (!ReadOK(tif, &nextnextdir, 4)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory link"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&nextnextdir); - if (nextnextdir==0) - { - (void) TIFFSeekFile(tif, - nextdir+2+dircount*12, SEEK_SET); - if (!WriteOK(tif, &m, 4)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - break; - } - nextdir=nextnextdir; - } - } - else - { - uint64 m; - uint64 nextdir; - m = tif->tif_diroff; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&m); - if (tif->tif_header.big.tiff_diroff == 0) { - /* - * First directory, overwrite offset in header. - */ - tif->tif_header.big.tiff_diroff = tif->tif_diroff; - (void) TIFFSeekFile(tif,8, SEEK_SET); - if (!WriteOK(tif, &m, 8)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Error writing TIFF header"); - return (0); - } - return (1); - } - /* - * Not the first directory, search to the last and append. - */ - nextdir = tif->tif_header.big.tiff_diroff; - while(1) { - uint64 dircount64; - uint16 dircount; - uint64 nextnextdir; - - if (!SeekOK(tif, nextdir) || - !ReadOK(tif, &dircount64, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory count"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - if (dircount64>0xFFFF) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Sanity check on tag count failed, likely corrupt TIFF"); - return (0); - } - dircount=(uint16)dircount64; - (void) TIFFSeekFile(tif, - nextdir+8+dircount*20, SEEK_SET); - if (!ReadOK(tif, &nextnextdir, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error fetching directory link"); - return (0); - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&nextnextdir); - if (nextnextdir==0) - { - (void) TIFFSeekFile(tif, - nextdir+8+dircount*20, SEEK_SET); - if (!WriteOK(tif, &m, 8)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - break; - } - nextdir=nextnextdir; - } - } - return (1); -} - -/************************************************************************/ -/* TIFFRewriteField() */ -/* */ -/* Rewrite a field in the directory on disk without regard to */ -/* updating the TIFF directory structure in memory. Currently */ -/* only supported for field that already exist in the on-disk */ -/* directory. Mainly used for updating stripoffset / */ -/* stripbytecount values after the directory is already on */ -/* disk. */ -/* */ -/* Returns zero on failure, and one on success. */ -/************************************************************************/ - -int -_TIFFRewriteField(TIFF* tif, ttag_t tag, TIFFDataType in_datatype, - tmsize_t count, void* data) -{ - static const char module[] = "TIFFResetField"; - /* const TIFFField* fip = NULL; */ - uint16 dircount; - tmsize_t dirsize; - uint8 direntry_raw[20]; - uint16 entry_tag = 0; - uint16 entry_type = 0; - uint64 entry_count = 0; - uint64 entry_offset = 0; - int value_in_entry = 0; - uint64 read_offset; - uint8 *buf_to_write = NULL; - TIFFDataType datatype; - -/* -------------------------------------------------------------------- */ -/* Find field definition. */ -/* -------------------------------------------------------------------- */ - /*fip =*/ TIFFFindField(tif, tag, TIFF_ANY); - -/* -------------------------------------------------------------------- */ -/* Do some checking this is a straight forward case. */ -/* -------------------------------------------------------------------- */ - if( isMapped(tif) ) - { - TIFFErrorExt( tif->tif_clientdata, module, - "Memory mapped files not currently supported for this operation." ); - return 0; - } - - if( tif->tif_diroff == 0 ) - { - TIFFErrorExt( tif->tif_clientdata, module, - "Attempt to reset field on directory not already on disk." ); - return 0; - } - -/* -------------------------------------------------------------------- */ -/* Read the directory entry count. */ -/* -------------------------------------------------------------------- */ - if (!SeekOK(tif, tif->tif_diroff)) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return 0; - } - - read_offset = tif->tif_diroff; - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if (!ReadOK(tif, &dircount, sizeof (uint16))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return 0; - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&dircount); - dirsize = 12; - read_offset += 2; - } else { - uint64 dircount64; - if (!ReadOK(tif, &dircount64, sizeof (uint64))) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory count", - tif->tif_name); - return 0; - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong8(&dircount64); - dircount = (uint16)dircount64; - dirsize = 20; - read_offset += 8; - } - -/* -------------------------------------------------------------------- */ -/* Read through directory to find target tag. */ -/* -------------------------------------------------------------------- */ - while( dircount > 0 ) - { - if (!ReadOK(tif, direntry_raw, dirsize)) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not read TIFF directory entry.", - tif->tif_name); - return 0; - } - - memcpy( &entry_tag, direntry_raw + 0, sizeof(uint16) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort( &entry_tag ); - - if( entry_tag == tag ) - break; - - read_offset += dirsize; - } - - if( entry_tag != tag ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Could not find tag %d.", - tif->tif_name, tag ); - return 0; - } - -/* -------------------------------------------------------------------- */ -/* Extract the type, count and offset for this entry. */ -/* -------------------------------------------------------------------- */ - memcpy( &entry_type, direntry_raw + 2, sizeof(uint16) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort( &entry_type ); - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 value; - - memcpy( &value, direntry_raw + 4, sizeof(uint32) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong( &value ); - entry_count = value; - - memcpy( &value, direntry_raw + 8, sizeof(uint32) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong( &value ); - entry_offset = value; - } - else - { - memcpy( &entry_count, direntry_raw + 4, sizeof(uint64) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8( &entry_count ); - - memcpy( &entry_offset, direntry_raw + 12, sizeof(uint64) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8( &entry_offset ); - } - -/* -------------------------------------------------------------------- */ -/* What data type do we want to write this as? */ -/* -------------------------------------------------------------------- */ - if( TIFFDataWidth(in_datatype) == 8 && !(tif->tif_flags&TIFF_BIGTIFF) ) - { - if( in_datatype == TIFF_LONG8 ) - datatype = TIFF_LONG; - else if( in_datatype == TIFF_SLONG8 ) - datatype = TIFF_SLONG; - else if( in_datatype == TIFF_IFD8 ) - datatype = TIFF_IFD; - else - datatype = in_datatype; - } - else - datatype = in_datatype; - -/* -------------------------------------------------------------------- */ -/* Prepare buffer of actual data to write. This includes */ -/* swabbing as needed. */ -/* -------------------------------------------------------------------- */ - buf_to_write = - (uint8 *)_TIFFCheckMalloc(tif, count, TIFFDataWidth(datatype), - "for field buffer."); - if (!buf_to_write) - return 0; - - if( datatype == in_datatype ) - memcpy( buf_to_write, data, count * TIFFDataWidth(datatype) ); - else if( datatype == TIFF_SLONG && in_datatype == TIFF_SLONG8 ) - { - tmsize_t i; - - for( i = 0; i < count; i++ ) - { - ((int32 *) buf_to_write)[i] = - (int32) ((int64 *) data)[i]; - if( (int64) ((int32 *) buf_to_write)[i] != ((int64 *) data)[i] ) - { - _TIFFfree( buf_to_write ); - TIFFErrorExt( tif->tif_clientdata, module, - "Value exceeds 32bit range of output type." ); - return 0; - } - } - } - else if( (datatype == TIFF_LONG && in_datatype == TIFF_LONG8) - || (datatype == TIFF_IFD && in_datatype == TIFF_IFD8) ) - { - tmsize_t i; - - for( i = 0; i < count; i++ ) - { - ((uint32 *) buf_to_write)[i] = - (uint32) ((uint64 *) data)[i]; - if( (uint64) ((uint32 *) buf_to_write)[i] != ((uint64 *) data)[i] ) - { - _TIFFfree( buf_to_write ); - TIFFErrorExt( tif->tif_clientdata, module, - "Value exceeds 32bit range of output type." ); - return 0; - } - } - } - - if( TIFFDataWidth(datatype) > 1 && (tif->tif_flags&TIFF_SWAB) ) - { - if( TIFFDataWidth(datatype) == 2 ) - TIFFSwabArrayOfShort( (uint16 *) buf_to_write, count ); - else if( TIFFDataWidth(datatype) == 4 ) - TIFFSwabArrayOfLong( (uint32 *) buf_to_write, count ); - else if( TIFFDataWidth(datatype) == 8 ) - TIFFSwabArrayOfLong8( (uint64 *) buf_to_write, count ); - } - -/* -------------------------------------------------------------------- */ -/* Is this a value that fits into the directory entry? */ -/* -------------------------------------------------------------------- */ - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - if( TIFFDataWidth(datatype) * count <= 4 ) - { - entry_offset = read_offset + 8; - value_in_entry = 1; - } - } - else - { - if( TIFFDataWidth(datatype) * count <= 8 ) - { - entry_offset = read_offset + 12; - value_in_entry = 1; - } - } - -/* -------------------------------------------------------------------- */ -/* If the tag type, and count match, then we just write it out */ -/* over the old values without altering the directory entry at */ -/* all. */ -/* -------------------------------------------------------------------- */ - if( entry_count == (uint64)count && entry_type == (uint16) datatype ) - { - if (!SeekOK(tif, entry_offset)) { - _TIFFfree( buf_to_write ); - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return 0; - } - if (!WriteOK(tif, buf_to_write, count*TIFFDataWidth(datatype))) { - _TIFFfree( buf_to_write ); - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - - _TIFFfree( buf_to_write ); - return 1; - } - -/* -------------------------------------------------------------------- */ -/* Otherwise, we write the new tag data at the end of the file. */ -/* -------------------------------------------------------------------- */ - if( !value_in_entry ) - { - entry_offset = TIFFSeekFile(tif,0,SEEK_END); - - if (!WriteOK(tif, buf_to_write, count*TIFFDataWidth(datatype))) { - _TIFFfree( buf_to_write ); - TIFFErrorExt(tif->tif_clientdata, module, - "Error writing directory link"); - return (0); - } - - _TIFFfree( buf_to_write ); - } - else - { - memcpy( &entry_offset, buf_to_write, count*TIFFDataWidth(datatype)); - } - -/* -------------------------------------------------------------------- */ -/* Adjust the directory entry. */ -/* -------------------------------------------------------------------- */ - entry_type = datatype; - memcpy( direntry_raw + 2, &entry_type, sizeof(uint16) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabShort( (uint16 *) (direntry_raw + 2) ); - - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - uint32 value; - - value = (uint32) entry_count; - memcpy( direntry_raw + 4, &value, sizeof(uint32) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong( (uint32 *) (direntry_raw + 4) ); - - value = (uint32) entry_offset; - memcpy( direntry_raw + 8, &value, sizeof(uint32) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong( (uint32 *) (direntry_raw + 8) ); - } - else - { - memcpy( direntry_raw + 4, &entry_count, sizeof(uint64) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8( (uint64 *) (direntry_raw + 4) ); - - memcpy( direntry_raw + 12, &entry_offset, sizeof(uint64) ); - if (tif->tif_flags&TIFF_SWAB) - TIFFSwabLong8( (uint64 *) (direntry_raw + 12) ); - } - -/* -------------------------------------------------------------------- */ -/* Write the directory entry out to disk. */ -/* -------------------------------------------------------------------- */ - if (!SeekOK(tif, read_offset )) { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Seek error accessing TIFF directory", - tif->tif_name); - return 0; - } - - if (!WriteOK(tif, direntry_raw,dirsize)) - { - TIFFErrorExt(tif->tif_clientdata, module, - "%s: Can not write TIFF directory entry.", - tif->tif_name); - return 0; - } - - return 1; -} -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_dumpmode.c b/tiff/libtiff/tif_dumpmode.c deleted file mode 100755 index a94cf0b..0000000 --- a/tiff/libtiff/tif_dumpmode.c +++ /dev/null @@ -1,143 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dumpmode.c,v 1.14 2011-04-02 20:54:09 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * "Null" Compression Algorithm Support. - */ -#include "tiffiop.h" - -static int -DumpFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -/* - * Encode a hunk of pixels. - */ -static int -DumpModeEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s) -{ - (void) s; - while (cc > 0) { - tmsize_t n; - - n = cc; - if (tif->tif_rawcc + n > tif->tif_rawdatasize) - n = tif->tif_rawdatasize - tif->tif_rawcc; - - assert( n > 0 ); - - /* - * Avoid copy if client has setup raw - * data buffer to avoid extra copy. - */ - if (tif->tif_rawcp != pp) - _TIFFmemcpy(tif->tif_rawcp, pp, n); - tif->tif_rawcp += n; - tif->tif_rawcc += n; - pp += n; - cc -= n; - if (tif->tif_rawcc >= tif->tif_rawdatasize && - !TIFFFlushData1(tif)) - return (-1); - } - return (1); -} - -/* - * Decode a hunk of pixels. - */ -static int -DumpModeDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - static const char module[] = "DumpModeDecode"; - (void) s; - if (tif->tif_rawcc < cc) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, -"Not enough data for scanline %lu, expected a request for at most %I64d bytes, got a request for %I64d bytes", - (unsigned long) tif->tif_row, - (signed __int64) tif->tif_rawcc, - (signed __int64) cc); -#else - TIFFErrorExt(tif->tif_clientdata, module, -"Not enough data for scanline %lu, expected a request for at most %lld bytes, got a request for %lld bytes", - (unsigned long) tif->tif_row, - (signed long long) tif->tif_rawcc, - (signed long long) cc); -#endif - return (0); - } - /* - * Avoid copy if client has setup raw - * data buffer to avoid extra copy. - */ - if (tif->tif_rawcp != buf) - _TIFFmemcpy(buf, tif->tif_rawcp, cc); - tif->tif_rawcp += cc; - tif->tif_rawcc -= cc; - return (1); -} - -/* - * Seek forwards nrows in the current strip. - */ -static int -DumpModeSeek(TIFF* tif, uint32 nrows) -{ - tif->tif_rawcp += nrows * tif->tif_scanlinesize; - tif->tif_rawcc -= nrows * tif->tif_scanlinesize; - return (1); -} - -/* - * Initialize dump mode. - */ -int -TIFFInitDumpMode(TIFF* tif, int scheme) -{ - (void) scheme; - tif->tif_fixuptags = DumpFixupTags; - tif->tif_decoderow = DumpModeDecode; - tif->tif_decodestrip = DumpModeDecode; - tif->tif_decodetile = DumpModeDecode; - tif->tif_encoderow = DumpModeEncode; - tif->tif_encodestrip = DumpModeEncode; - tif->tif_encodetile = DumpModeEncode; - tif->tif_seek = DumpModeSeek; - return (1); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_error.c b/tiff/libtiff/tif_error.c deleted file mode 100755 index 0bc8b87..0000000 --- a/tiff/libtiff/tif_error.c +++ /dev/null @@ -1,80 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_error.c,v 1.5 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - */ -#include "tiffiop.h" - -TIFFErrorHandlerExt _TIFFerrorHandlerExt = NULL; - -TIFFErrorHandler -TIFFSetErrorHandler(TIFFErrorHandler handler) -{ - TIFFErrorHandler prev = _TIFFerrorHandler; - _TIFFerrorHandler = handler; - return (prev); -} - -TIFFErrorHandlerExt -TIFFSetErrorHandlerExt(TIFFErrorHandlerExt handler) -{ - TIFFErrorHandlerExt prev = _TIFFerrorHandlerExt; - _TIFFerrorHandlerExt = handler; - return (prev); -} - -void -TIFFError(const char* module, const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - if (_TIFFerrorHandler) - (*_TIFFerrorHandler)(module, fmt, ap); - if (_TIFFerrorHandlerExt) - (*_TIFFerrorHandlerExt)(0, module, fmt, ap); - va_end(ap); -} - -void -TIFFErrorExt(thandle_t fd, const char* module, const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - if (_TIFFerrorHandler) - (*_TIFFerrorHandler)(module, fmt, ap); - if (_TIFFerrorHandlerExt) - (*_TIFFerrorHandlerExt)(fd, module, fmt, ap); - va_end(ap); -} - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_extension.c b/tiff/libtiff/tif_extension.c deleted file mode 100755 index 10afd41..0000000 --- a/tiff/libtiff/tif_extension.c +++ /dev/null @@ -1,118 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_extension.c,v 1.7 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Various routines support external extension of the tag set, and other - * application extension capabilities. - */ - -#include "tiffiop.h" - -int TIFFGetTagListCount( TIFF *tif ) - -{ - TIFFDirectory* td = &tif->tif_dir; - - return td->td_customValueCount; -} - -uint32 TIFFGetTagListEntry( TIFF *tif, int tag_index ) - -{ - TIFFDirectory* td = &tif->tif_dir; - - if( tag_index < 0 || tag_index >= td->td_customValueCount ) - return (uint32)(-1); - else - return td->td_customValues[tag_index].info->field_tag; -} - -/* -** This provides read/write access to the TIFFTagMethods within the TIFF -** structure to application code without giving access to the private -** TIFF structure. -*/ -TIFFTagMethods *TIFFAccessTagMethods( TIFF *tif ) - -{ - return &(tif->tif_tagmethods); -} - -void *TIFFGetClientInfo( TIFF *tif, const char *name ) - -{ - TIFFClientInfoLink *link = tif->tif_clientinfo; - - while( link != NULL && strcmp(link->name,name) != 0 ) - link = link->next; - - if( link != NULL ) - return link->data; - else - return NULL; -} - -void TIFFSetClientInfo( TIFF *tif, void *data, const char *name ) - -{ - TIFFClientInfoLink *link = tif->tif_clientinfo; - - /* - ** Do we have an existing link with this name? If so, just - ** set it. - */ - while( link != NULL && strcmp(link->name,name) != 0 ) - link = link->next; - - if( link != NULL ) - { - link->data = data; - return; - } - - /* - ** Create a new link. - */ - - link = (TIFFClientInfoLink *) _TIFFmalloc(sizeof(TIFFClientInfoLink)); - assert (link != NULL); - link->next = tif->tif_clientinfo; - link->name = (char *) _TIFFmalloc((tmsize_t)(strlen(name)+1)); - assert (link->name != NULL); - strcpy(link->name, name); - link->data = data; - - tif->tif_clientinfo = link; -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_fax3.c b/tiff/libtiff/tif_fax3.c deleted file mode 100755 index 2b2dccd..0000000 --- a/tiff/libtiff/tif_fax3.c +++ /dev/null @@ -1,1595 +0,0 @@ -/* $Id: tif_fax3.c,v 1.74 2012-06-21 02:01:31 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1990-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef CCITT_SUPPORT -/* - * TIFF Library. - * - * CCITT Group 3 (T.4) and Group 4 (T.6) Compression Support. - * - * This file contains support for decoding and encoding TIFF - * compression algorithms 2, 3, 4, and 32771. - * - * Decoder support is derived, with permission, from the code - * in Frank Cringle's viewfax program; - * Copyright (C) 1990, 1995 Frank D. Cringle. - */ -#include "tif_fax3.h" -#define G3CODES -#include "t4.h" -#include - -/* - * Compression+decompression state blocks are - * derived from this ``base state'' block. - */ -typedef struct { - int rw_mode; /* O_RDONLY for decode, else encode */ - int mode; /* operating mode */ - tmsize_t rowbytes; /* bytes in a decoded scanline */ - uint32 rowpixels; /* pixels in a scanline */ - - uint16 cleanfaxdata; /* CleanFaxData tag */ - uint32 badfaxrun; /* BadFaxRun tag */ - uint32 badfaxlines; /* BadFaxLines tag */ - uint32 groupoptions; /* Group 3/4 options tag */ - - TIFFVGetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ - TIFFPrintMethod printdir; /* super-class method */ -} Fax3BaseState; -#define Fax3State(tif) ((Fax3BaseState*) (tif)->tif_data) - -typedef enum { G3_1D, G3_2D } Ttag; -typedef struct { - Fax3BaseState b; - - /* Decoder state info */ - const unsigned char* bitmap; /* bit reversal table */ - uint32 data; /* current i/o byte/word */ - int bit; /* current i/o bit in byte */ - int EOLcnt; /* count of EOL codes recognized */ - TIFFFaxFillFunc fill; /* fill routine */ - uint32* runs; /* b&w runs for current/previous row */ - uint32* refruns; /* runs for reference line */ - uint32* curruns; /* runs for current line */ - - /* Encoder state info */ - Ttag tag; /* encoding state */ - unsigned char* refline; /* reference line for 2d decoding */ - int k; /* #rows left that can be 2d encoded */ - int maxk; /* max #rows that can be 2d encoded */ - - int line; -} Fax3CodecState; -#define DecoderState(tif) ((Fax3CodecState*) Fax3State(tif)) -#define EncoderState(tif) ((Fax3CodecState*) Fax3State(tif)) - -#define is2DEncoding(sp) (sp->b.groupoptions & GROUP3OPT_2DENCODING) -#define isAligned(p,t) ((((size_t)(p)) & (sizeof (t)-1)) == 0) - -/* - * Group 3 and Group 4 Decoding. - */ - -/* - * These macros glue the TIFF library state to - * the state expected by Frank's decoder. - */ -#define DECLARE_STATE(tif, sp, mod) \ - static const char module[] = mod; \ - Fax3CodecState* sp = DecoderState(tif); \ - int a0; /* reference element */ \ - int lastx = sp->b.rowpixels; /* last element in row */ \ - uint32 BitAcc; /* bit accumulator */ \ - int BitsAvail; /* # valid bits in BitAcc */ \ - int RunLength; /* length of current run */ \ - unsigned char* cp; /* next byte of input data */ \ - unsigned char* ep; /* end of input data */ \ - uint32* pa; /* place to stuff next run */ \ - uint32* thisrun; /* current row's run array */ \ - int EOLcnt; /* # EOL codes recognized */ \ - const unsigned char* bitmap = sp->bitmap; /* input data bit reverser */ \ - const TIFFFaxTabEnt* TabEnt -#define DECLARE_STATE_2D(tif, sp, mod) \ - DECLARE_STATE(tif, sp, mod); \ - int b1; /* next change on prev line */ \ - uint32* pb /* next run in reference line */\ -/* - * Load any state that may be changed during decoding. - */ -#define CACHE_STATE(tif, sp) do { \ - BitAcc = sp->data; \ - BitsAvail = sp->bit; \ - EOLcnt = sp->EOLcnt; \ - cp = (unsigned char*) tif->tif_rawcp; \ - ep = cp + tif->tif_rawcc; \ -} while (0) -/* - * Save state possibly changed during decoding. - */ -#define UNCACHE_STATE(tif, sp) do { \ - sp->bit = BitsAvail; \ - sp->data = BitAcc; \ - sp->EOLcnt = EOLcnt; \ - tif->tif_rawcc -= (tmsize_t)((uint8*) cp - tif->tif_rawcp); \ - tif->tif_rawcp = (uint8*) cp; \ -} while (0) - -/* - * Setup state for decoding a strip. - */ -static int -Fax3PreDecode(TIFF* tif, uint16 s) -{ - Fax3CodecState* sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - sp->bit = 0; /* force initial read */ - sp->data = 0; - sp->EOLcnt = 0; /* force initial scan for EOL */ - /* - * Decoder assumes lsb-to-msb bit order. Note that we select - * this here rather than in Fax3SetupState so that viewers can - * hold the image open, fiddle with the FillOrder tag value, - * and then re-decode the image. Otherwise they'd need to close - * and open the image to get the state reset. - */ - sp->bitmap = - TIFFGetBitRevTable(tif->tif_dir.td_fillorder != FILLORDER_LSB2MSB); - if (sp->refruns) { /* init reference line to white */ - sp->refruns[0] = (uint32) sp->b.rowpixels; - sp->refruns[1] = 0; - } - sp->line = 0; - return (1); -} - -/* - * Routine for handling various errors/conditions. - * Note how they are "glued into the decoder" by - * overriding the definitions used by the decoder. - */ - -static void -Fax3Unexpected(const char* module, TIFF* tif, uint32 line, uint32 a0) -{ - TIFFErrorExt(tif->tif_clientdata, module, "Bad code word at line %u of %s %u (x %u)", - line, isTiled(tif) ? "tile" : "strip", - (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - a0); -} -#define unexpected(table, a0) Fax3Unexpected(module, tif, sp->line, a0) - -static void -Fax3Extension(const char* module, TIFF* tif, uint32 line, uint32 a0) -{ - TIFFErrorExt(tif->tif_clientdata, module, - "Uncompressed data (not supported) at line %u of %s %u (x %u)", - line, isTiled(tif) ? "tile" : "strip", - (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - a0); -} -#define extension(a0) Fax3Extension(module, tif, sp->line, a0) - -static void -Fax3BadLength(const char* module, TIFF* tif, uint32 line, uint32 a0, uint32 lastx) -{ - TIFFWarningExt(tif->tif_clientdata, module, "%s at line %u of %s %u (got %u, expected %u)", - a0 < lastx ? "Premature EOL" : "Line length mismatch", - line, isTiled(tif) ? "tile" : "strip", - (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - a0, lastx); -} -#define badlength(a0,lastx) Fax3BadLength(module, tif, sp->line, a0, lastx) - -static void -Fax3PrematureEOF(const char* module, TIFF* tif, uint32 line, uint32 a0) -{ - TIFFWarningExt(tif->tif_clientdata, module, "Premature EOF at line %u of %s %u (x %u)", - line, isTiled(tif) ? "tile" : "strip", - (isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip), - a0); -} -#define prematureEOF(a0) Fax3PrematureEOF(module, tif, sp->line, a0) - -#define Nop - -/* - * Decode the requested amount of G3 1D-encoded data. - */ -static int -Fax3Decode1D(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - DECLARE_STATE(tif, sp, "Fax3Decode1D"); - (void) s; - if (occ % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (-1); - } - CACHE_STATE(tif, sp); - thisrun = sp->curruns; - while (occ > 0) { - a0 = 0; - RunLength = 0; - pa = thisrun; -#ifdef FAX3_DEBUG - printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); - printf("-------------------- %d\n", tif->tif_row); - fflush(stdout); -#endif - SYNC_EOL(EOF1D); - EXPAND1D(EOF1Da); - (*sp->fill)(buf, thisrun, pa, lastx); - buf += sp->b.rowbytes; - occ -= sp->b.rowbytes; - sp->line++; - continue; - EOF1D: /* premature EOF */ - CLEANUP_RUNS(); - EOF1Da: /* premature EOF */ - (*sp->fill)(buf, thisrun, pa, lastx); - UNCACHE_STATE(tif, sp); - return (-1); - } - UNCACHE_STATE(tif, sp); - return (1); -} - -#define SWAP(t,a,b) { t x; x = (a); (a) = (b); (b) = x; } -/* - * Decode the requested amount of G3 2D-encoded data. - */ -static int -Fax3Decode2D(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - DECLARE_STATE_2D(tif, sp, "Fax3Decode2D"); - int is1D; /* current line is 1d/2d-encoded */ - (void) s; - if (occ % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (-1); - } - CACHE_STATE(tif, sp); - while (occ > 0) { - a0 = 0; - RunLength = 0; - pa = thisrun = sp->curruns; -#ifdef FAX3_DEBUG - printf("\nBitAcc=%08X, BitsAvail = %d EOLcnt = %d", - BitAcc, BitsAvail, EOLcnt); -#endif - SYNC_EOL(EOF2D); - NeedBits8(1, EOF2D); - is1D = GetBits(1); /* 1D/2D-encoding tag bit */ - ClrBits(1); -#ifdef FAX3_DEBUG - printf(" %s\n-------------------- %d\n", - is1D ? "1D" : "2D", tif->tif_row); - fflush(stdout); -#endif - pb = sp->refruns; - b1 = *pb++; - if (is1D) - EXPAND1D(EOF2Da); - else - EXPAND2D(EOF2Da); - (*sp->fill)(buf, thisrun, pa, lastx); - SETVALUE(0); /* imaginary change for reference */ - SWAP(uint32*, sp->curruns, sp->refruns); - buf += sp->b.rowbytes; - occ -= sp->b.rowbytes; - sp->line++; - continue; - EOF2D: /* premature EOF */ - CLEANUP_RUNS(); - EOF2Da: /* premature EOF */ - (*sp->fill)(buf, thisrun, pa, lastx); - UNCACHE_STATE(tif, sp); - return (-1); - } - UNCACHE_STATE(tif, sp); - return (1); -} -#undef SWAP - -/* - * The ZERO & FILL macros must handle spans < 2*sizeof(long) bytes. - * For machines with 64-bit longs this is <16 bytes; otherwise - * this is <8 bytes. We optimize the code here to reflect the - * machine characteristics. - */ -#if SIZEOF_UNSIGNED_LONG == 8 -# define FILL(n, cp) \ - switch (n) { \ - case 15:(cp)[14] = 0xff; case 14:(cp)[13] = 0xff; case 13: (cp)[12] = 0xff;\ - case 12:(cp)[11] = 0xff; case 11:(cp)[10] = 0xff; case 10: (cp)[9] = 0xff;\ - case 9: (cp)[8] = 0xff; case 8: (cp)[7] = 0xff; case 7: (cp)[6] = 0xff;\ - case 6: (cp)[5] = 0xff; case 5: (cp)[4] = 0xff; case 4: (cp)[3] = 0xff;\ - case 3: (cp)[2] = 0xff; case 2: (cp)[1] = 0xff; \ - case 1: (cp)[0] = 0xff; (cp) += (n); case 0: ; \ - } -# define ZERO(n, cp) \ - switch (n) { \ - case 15:(cp)[14] = 0; case 14:(cp)[13] = 0; case 13: (cp)[12] = 0; \ - case 12:(cp)[11] = 0; case 11:(cp)[10] = 0; case 10: (cp)[9] = 0; \ - case 9: (cp)[8] = 0; case 8: (cp)[7] = 0; case 7: (cp)[6] = 0; \ - case 6: (cp)[5] = 0; case 5: (cp)[4] = 0; case 4: (cp)[3] = 0; \ - case 3: (cp)[2] = 0; case 2: (cp)[1] = 0; \ - case 1: (cp)[0] = 0; (cp) += (n); case 0: ; \ - } -#else -# define FILL(n, cp) \ - switch (n) { \ - case 7: (cp)[6] = 0xff; case 6: (cp)[5] = 0xff; case 5: (cp)[4] = 0xff; \ - case 4: (cp)[3] = 0xff; case 3: (cp)[2] = 0xff; case 2: (cp)[1] = 0xff; \ - case 1: (cp)[0] = 0xff; (cp) += (n); case 0: ; \ - } -# define ZERO(n, cp) \ - switch (n) { \ - case 7: (cp)[6] = 0; case 6: (cp)[5] = 0; case 5: (cp)[4] = 0; \ - case 4: (cp)[3] = 0; case 3: (cp)[2] = 0; case 2: (cp)[1] = 0; \ - case 1: (cp)[0] = 0; (cp) += (n); case 0: ; \ - } -#endif - -/* - * Bit-fill a row according to the white/black - * runs generated during G3/G4 decoding. - */ -void -_TIFFFax3fillruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) -{ - static const unsigned char _fillmasks[] = - { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff }; - unsigned char* cp; - uint32 x, bx, run; - int32 n, nw; - long* lp; - - if ((erun-runs)&1) - *erun++ = 0; - x = 0; - for (; runs < erun; runs += 2) { - run = runs[0]; - if (x+run > lastx || run > lastx ) - run = runs[0] = (uint32) (lastx - x); - if (run) { - cp = buf + (x>>3); - bx = x&7; - if (run > 8-bx) { - if (bx) { /* align to byte boundary */ - *cp++ &= 0xff << (8-bx); - run -= 8-bx; - } - if( (n = run >> 3) != 0 ) { /* multiple bytes to fill */ - if ((n/sizeof (long)) > 1) { - /* - * Align to longword boundary and fill. - */ - for (; n && !isAligned(cp, long); n--) - *cp++ = 0x00; - lp = (long*) cp; - nw = (int32)(n / sizeof (long)); - n -= nw * sizeof (long); - do { - *lp++ = 0L; - } while (--nw); - cp = (unsigned char*) lp; - } - ZERO(n, cp); - run &= 7; - } - if (run) - cp[0] &= 0xff >> run; - } else - cp[0] &= ~(_fillmasks[run]>>bx); - x += runs[0]; - } - run = runs[1]; - if (x+run > lastx || run > lastx ) - run = runs[1] = lastx - x; - if (run) { - cp = buf + (x>>3); - bx = x&7; - if (run > 8-bx) { - if (bx) { /* align to byte boundary */ - *cp++ |= 0xff >> bx; - run -= 8-bx; - } - if( (n = run>>3) != 0 ) { /* multiple bytes to fill */ - if ((n/sizeof (long)) > 1) { - /* - * Align to longword boundary and fill. - */ - for (; n && !isAligned(cp, long); n--) - *cp++ = 0xff; - lp = (long*) cp; - nw = (int32)(n / sizeof (long)); - n -= nw * sizeof (long); - do { - *lp++ = -1L; - } while (--nw); - cp = (unsigned char*) lp; - } - FILL(n, cp); - run &= 7; - } - if (run) - cp[0] |= 0xff00 >> run; - } else - cp[0] |= _fillmasks[run]>>bx; - x += runs[1]; - } - } - assert(x == lastx); -} -#undef ZERO -#undef FILL - -static int -Fax3FixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -/* - * Setup G3/G4-related compression/decompression state - * before data is processed. This routine is called once - * per image -- it sets up different state based on whether - * or not decoding or encoding is being done and whether - * 1D- or 2D-encoded data is involved. - */ -static int -Fax3SetupState(TIFF* tif) -{ - static const char module[] = "Fax3SetupState"; - TIFFDirectory* td = &tif->tif_dir; - Fax3BaseState* sp = Fax3State(tif); - int needsRefLine; - Fax3CodecState* dsp = (Fax3CodecState*) Fax3State(tif); - tmsize_t rowbytes; - uint32 rowpixels, nruns; - - if (td->td_bitspersample != 1) { - TIFFErrorExt(tif->tif_clientdata, module, - "Bits/sample must be 1 for Group 3/4 encoding/decoding"); - return (0); - } - /* - * Calculate the scanline/tile widths. - */ - if (isTiled(tif)) { - rowbytes = TIFFTileRowSize(tif); - rowpixels = td->td_tilewidth; - } else { - rowbytes = TIFFScanlineSize(tif); - rowpixels = td->td_imagewidth; - } - sp->rowbytes = rowbytes; - sp->rowpixels = rowpixels; - /* - * Allocate any additional space required for decoding/encoding. - */ - needsRefLine = ( - (sp->groupoptions & GROUP3OPT_2DENCODING) || - td->td_compression == COMPRESSION_CCITTFAX4 - ); - - /* - Assure that allocation computations do not overflow. - - TIFFroundup and TIFFSafeMultiply return zero on integer overflow - */ - dsp->runs=(uint32*) NULL; - nruns = TIFFroundup_32(rowpixels,32); - if (needsRefLine) { - nruns = TIFFSafeMultiply(uint32,nruns,2); - } - if ((nruns == 0) || (TIFFSafeMultiply(uint32,nruns,2) == 0)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Row pixels integer overflow (rowpixels %u)", - rowpixels); - return (0); - } - dsp->runs = (uint32*) _TIFFCheckMalloc(tif, - TIFFSafeMultiply(uint32,nruns,2), - sizeof (uint32), - "for Group 3/4 run arrays"); - if (dsp->runs == NULL) - return (0); - memset( dsp->runs, 0, TIFFSafeMultiply(uint32,nruns,2)*sizeof(uint32)); - dsp->curruns = dsp->runs; - if (needsRefLine) - dsp->refruns = dsp->runs + nruns; - else - dsp->refruns = NULL; - if (td->td_compression == COMPRESSION_CCITTFAX3 - && is2DEncoding(dsp)) { /* NB: default is 1D routine */ - tif->tif_decoderow = Fax3Decode2D; - tif->tif_decodestrip = Fax3Decode2D; - tif->tif_decodetile = Fax3Decode2D; - } - - if (needsRefLine) { /* 2d encoding */ - Fax3CodecState* esp = EncoderState(tif); - /* - * 2d encoding requires a scanline - * buffer for the ``reference line''; the - * scanline against which delta encoding - * is referenced. The reference line must - * be initialized to be ``white'' (done elsewhere). - */ - esp->refline = (unsigned char*) _TIFFmalloc(rowbytes); - if (esp->refline == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, - "No space for Group 3/4 reference line"); - return (0); - } - } else /* 1d encoding */ - EncoderState(tif)->refline = NULL; - - return (1); -} - -/* - * CCITT Group 3 FAX Encoding. - */ - -#define Fax3FlushBits(tif, sp) { \ - if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) \ - (void) TIFFFlushData1(tif); \ - *(tif)->tif_rawcp++ = (uint8) (sp)->data; \ - (tif)->tif_rawcc++; \ - (sp)->data = 0, (sp)->bit = 8; \ -} -#define _FlushBits(tif) { \ - if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize) \ - (void) TIFFFlushData1(tif); \ - *(tif)->tif_rawcp++ = (uint8) data; \ - (tif)->tif_rawcc++; \ - data = 0, bit = 8; \ -} -static const int _msbmask[9] = - { 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff }; -#define _PutBits(tif, bits, length) { \ - while (length > bit) { \ - data |= bits >> (length - bit); \ - length -= bit; \ - _FlushBits(tif); \ - } \ - assert( length < 9 ); \ - data |= (bits & _msbmask[length]) << (bit - length); \ - bit -= length; \ - if (bit == 0) \ - _FlushBits(tif); \ -} - -/* - * Write a variable-length bit-value to - * the output stream. Values are - * assumed to be at most 16 bits. - */ -static void -Fax3PutBits(TIFF* tif, unsigned int bits, unsigned int length) -{ - Fax3CodecState* sp = EncoderState(tif); - unsigned int bit = sp->bit; - int data = sp->data; - - _PutBits(tif, bits, length); - - sp->data = data; - sp->bit = bit; -} - -/* - * Write a code to the output stream. - */ -#define putcode(tif, te) Fax3PutBits(tif, (te)->code, (te)->length) - -#ifdef FAX3_DEBUG -#define DEBUG_COLOR(w) (tab == TIFFFaxWhiteCodes ? w "W" : w "B") -#define DEBUG_PRINT(what,len) { \ - int t; \ - printf("%08X/%-2d: %s%5d\t", data, bit, DEBUG_COLOR(what), len); \ - for (t = length-1; t >= 0; t--) \ - putchar(code & (1<bit; - int data = sp->data; - unsigned int code, length; - - while (span >= 2624) { - const tableentry* te = &tab[63 + (2560>>6)]; - code = te->code, length = te->length; -#ifdef FAX3_DEBUG - DEBUG_PRINT("MakeUp", te->runlen); -#endif - _PutBits(tif, code, length); - span -= te->runlen; - } - if (span >= 64) { - const tableentry* te = &tab[63 + (span>>6)]; - assert(te->runlen == 64*(span>>6)); - code = te->code, length = te->length; -#ifdef FAX3_DEBUG - DEBUG_PRINT("MakeUp", te->runlen); -#endif - _PutBits(tif, code, length); - span -= te->runlen; - } - code = tab[span].code, length = tab[span].length; -#ifdef FAX3_DEBUG - DEBUG_PRINT(" Term", tab[span].runlen); -#endif - _PutBits(tif, code, length); - - sp->data = data; - sp->bit = bit; -} - -/* - * Write an EOL code to the output stream. The zero-fill - * logic for byte-aligning encoded scanlines is handled - * here. We also handle writing the tag bit for the next - * scanline when doing 2d encoding. - */ -static void -Fax3PutEOL(TIFF* tif) -{ - Fax3CodecState* sp = EncoderState(tif); - unsigned int bit = sp->bit; - int data = sp->data; - unsigned int code, length, tparm; - - if (sp->b.groupoptions & GROUP3OPT_FILLBITS) { - /* - * Force bit alignment so EOL will terminate on - * a byte boundary. That is, force the bit alignment - * to 16-12 = 4 before putting out the EOL code. - */ - int align = 8 - 4; - if (align != sp->bit) { - if (align > sp->bit) - align = sp->bit + (8 - align); - else - align = sp->bit - align; - code = 0; - tparm=align; - _PutBits(tif, 0, tparm); - } - } - code = EOL, length = 12; - if (is2DEncoding(sp)) - code = (code<<1) | (sp->tag == G3_1D), length++; - _PutBits(tif, code, length); - - sp->data = data; - sp->bit = bit; -} - -/* - * Reset encoding state at the start of a strip. - */ -static int -Fax3PreEncode(TIFF* tif, uint16 s) -{ - Fax3CodecState* sp = EncoderState(tif); - - (void) s; - assert(sp != NULL); - sp->bit = 8; - sp->data = 0; - sp->tag = G3_1D; - /* - * This is necessary for Group 4; otherwise it isn't - * needed because the first scanline of each strip ends - * up being copied into the refline. - */ - if (sp->refline) - _TIFFmemset(sp->refline, 0x00, sp->b.rowbytes); - if (is2DEncoding(sp)) { - float res = tif->tif_dir.td_yresolution; - /* - * The CCITT spec says that when doing 2d encoding, you - * should only do it on K consecutive scanlines, where K - * depends on the resolution of the image being encoded - * (2 for <= 200 lpi, 4 for > 200 lpi). Since the directory - * code initializes td_yresolution to 0, this code will - * select a K of 2 unless the YResolution tag is set - * appropriately. (Note also that we fudge a little here - * and use 150 lpi to avoid problems with units conversion.) - */ - if (tif->tif_dir.td_resolutionunit == RESUNIT_CENTIMETER) - res *= 2.54f; /* convert to inches */ - sp->maxk = (res > 150 ? 4 : 2); - sp->k = sp->maxk-1; - } else - sp->k = sp->maxk = 0; - sp->line = 0; - return (1); -} - -static const unsigned char zeroruns[256] = { - 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, /* 0x00 - 0x0f */ - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 - 0x1f */ - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x20 - 0x2f */ - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0x30 - 0x3f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x40 - 0x4f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x50 - 0x5f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x60 - 0x6f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x70 - 0x7f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 - 0x8f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 - 0x9f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 - 0xaf */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 - 0xbf */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 - 0xcf */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 - 0xdf */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 - 0xef */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xf0 - 0xff */ -}; -static const unsigned char oneruns[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 - 0x0f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 - 0x1f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 - 0x2f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30 - 0x3f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x40 - 0x4f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 - 0x5f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 - 0x6f */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 - 0x7f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x80 - 0x8f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x90 - 0x9f */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xa0 - 0xaf */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0xb0 - 0xbf */ - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xc0 - 0xcf */ - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* 0xd0 - 0xdf */ - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xe0 - 0xef */ - 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8, /* 0xf0 - 0xff */ -}; - -/* - * On certain systems it pays to inline - * the routines that find pixel spans. - */ -#ifdef VAXC -static int32 find0span(unsigned char*, int32, int32); -static int32 find1span(unsigned char*, int32, int32); -#pragma inline(find0span,find1span) -#endif - -/* - * Find a span of ones or zeros using the supplied - * table. The ``base'' of the bit string is supplied - * along with the start+end bit indices. - */ -inline static int32 -find0span(unsigned char* bp, int32 bs, int32 be) -{ - int32 bits = be - bs; - int32 n, span; - - bp += bs>>3; - /* - * Check partial byte on lhs. - */ - if (bits > 0 && (n = (bs & 7))) { - span = zeroruns[(*bp << n) & 0xff]; - if (span > 8-n) /* table value too generous */ - span = 8-n; - if (span > bits) /* constrain span to bit range */ - span = bits; - if (n+span < 8) /* doesn't extend to edge of byte */ - return (span); - bits -= span; - bp++; - } else - span = 0; - if (bits >= (int32)(2 * 8 * sizeof(long))) { - long* lp; - /* - * Align to longword boundary and check longwords. - */ - while (!isAligned(bp, long)) { - if (*bp != 0x00) - return (span + zeroruns[*bp]); - span += 8, bits -= 8; - bp++; - } - lp = (long*) bp; - while ((bits >= (int32)(8 * sizeof(long))) && (0 == *lp)) { - span += 8*sizeof (long), bits -= 8*sizeof (long); - lp++; - } - bp = (unsigned char*) lp; - } - /* - * Scan full bytes for all 0's. - */ - while (bits >= 8) { - if (*bp != 0x00) /* end of run */ - return (span + zeroruns[*bp]); - span += 8, bits -= 8; - bp++; - } - /* - * Check partial byte on rhs. - */ - if (bits > 0) { - n = zeroruns[*bp]; - span += (n > bits ? bits : n); - } - return (span); -} - -inline static int32 -find1span(unsigned char* bp, int32 bs, int32 be) -{ - int32 bits = be - bs; - int32 n, span; - - bp += bs>>3; - /* - * Check partial byte on lhs. - */ - if (bits > 0 && (n = (bs & 7))) { - span = oneruns[(*bp << n) & 0xff]; - if (span > 8-n) /* table value too generous */ - span = 8-n; - if (span > bits) /* constrain span to bit range */ - span = bits; - if (n+span < 8) /* doesn't extend to edge of byte */ - return (span); - bits -= span; - bp++; - } else - span = 0; - if (bits >= (int32)(2 * 8 * sizeof(long))) { - long* lp; - /* - * Align to longword boundary and check longwords. - */ - while (!isAligned(bp, long)) { - if (*bp != 0xff) - return (span + oneruns[*bp]); - span += 8, bits -= 8; - bp++; - } - lp = (long*) bp; - while ((bits >= (int32)(8 * sizeof(long))) && (~0 == *lp)) { - span += 8*sizeof (long), bits -= 8*sizeof (long); - lp++; - } - bp = (unsigned char*) lp; - } - /* - * Scan full bytes for all 1's. - */ - while (bits >= 8) { - if (*bp != 0xff) /* end of run */ - return (span + oneruns[*bp]); - span += 8, bits -= 8; - bp++; - } - /* - * Check partial byte on rhs. - */ - if (bits > 0) { - n = oneruns[*bp]; - span += (n > bits ? bits : n); - } - return (span); -} - -/* - * Return the offset of the next bit in the range - * [bs..be] that is different from the specified - * color. The end, be, is returned if no such bit - * exists. - */ -#define finddiff(_cp, _bs, _be, _color) \ - (_bs + (_color ? find1span(_cp,_bs,_be) : find0span(_cp,_bs,_be))) -/* - * Like finddiff, but also check the starting bit - * against the end in case start > end. - */ -#define finddiff2(_cp, _bs, _be, _color) \ - (_bs < _be ? finddiff(_cp,_bs,_be,_color) : _be) - -/* - * 1d-encode a row of pixels. The encoding is - * a sequence of all-white or all-black spans - * of pixels encoded with Huffman codes. - */ -static int -Fax3Encode1DRow(TIFF* tif, unsigned char* bp, uint32 bits) -{ - Fax3CodecState* sp = EncoderState(tif); - int32 span; - uint32 bs = 0; - - for (;;) { - span = find0span(bp, bs, bits); /* white span */ - putspan(tif, span, TIFFFaxWhiteCodes); - bs += span; - if (bs >= bits) - break; - span = find1span(bp, bs, bits); /* black span */ - putspan(tif, span, TIFFFaxBlackCodes); - bs += span; - if (bs >= bits) - break; - } - if (sp->b.mode & (FAXMODE_BYTEALIGN|FAXMODE_WORDALIGN)) { - if (sp->bit != 8) /* byte-align */ - Fax3FlushBits(tif, sp); - if ((sp->b.mode&FAXMODE_WORDALIGN) && - !isAligned(tif->tif_rawcp, uint16)) - Fax3FlushBits(tif, sp); - } - return (1); -} - -static const tableentry horizcode = - { 3, 0x1, 0 }; /* 001 */ -static const tableentry passcode = - { 4, 0x1, 0 }; /* 0001 */ -static const tableentry vcodes[7] = { - { 7, 0x03, 0 }, /* 0000 011 */ - { 6, 0x03, 0 }, /* 0000 11 */ - { 3, 0x03, 0 }, /* 011 */ - { 1, 0x1, 0 }, /* 1 */ - { 3, 0x2, 0 }, /* 010 */ - { 6, 0x02, 0 }, /* 0000 10 */ - { 7, 0x02, 0 } /* 0000 010 */ -}; - -/* - * 2d-encode a row of pixels. Consult the CCITT - * documentation for the algorithm. - */ -static int -Fax3Encode2DRow(TIFF* tif, unsigned char* bp, unsigned char* rp, uint32 bits) -{ -#define PIXEL(buf,ix) ((((buf)[(ix)>>3]) >> (7-((ix)&7))) & 1) - uint32 a0 = 0; - uint32 a1 = (PIXEL(bp, 0) != 0 ? 0 : finddiff(bp, 0, bits, 0)); - uint32 b1 = (PIXEL(rp, 0) != 0 ? 0 : finddiff(rp, 0, bits, 0)); - uint32 a2, b2; - - for (;;) { - b2 = finddiff2(rp, b1, bits, PIXEL(rp,b1)); - if (b2 >= a1) { - int32 d = b1 - a1; - if (!(-3 <= d && d <= 3)) { /* horizontal mode */ - a2 = finddiff2(bp, a1, bits, PIXEL(bp,a1)); - putcode(tif, &horizcode); - if (a0+a1 == 0 || PIXEL(bp, a0) == 0) { - putspan(tif, a1-a0, TIFFFaxWhiteCodes); - putspan(tif, a2-a1, TIFFFaxBlackCodes); - } else { - putspan(tif, a1-a0, TIFFFaxBlackCodes); - putspan(tif, a2-a1, TIFFFaxWhiteCodes); - } - a0 = a2; - } else { /* vertical mode */ - putcode(tif, &vcodes[d+3]); - a0 = a1; - } - } else { /* pass mode */ - putcode(tif, &passcode); - a0 = b2; - } - if (a0 >= bits) - break; - a1 = finddiff(bp, a0, bits, PIXEL(bp,a0)); - b1 = finddiff(rp, a0, bits, !PIXEL(bp,a0)); - b1 = finddiff(rp, b1, bits, PIXEL(bp,a0)); - } - return (1); -#undef PIXEL -} - -/* - * Encode a buffer of pixels. - */ -static int -Fax3Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - static const char module[] = "Fax3Encode"; - Fax3CodecState* sp = EncoderState(tif); - (void) s; - if (cc % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be written"); - return (0); - } - while (cc > 0) { - if ((sp->b.mode & FAXMODE_NOEOL) == 0) - Fax3PutEOL(tif); - if (is2DEncoding(sp)) { - if (sp->tag == G3_1D) { - if (!Fax3Encode1DRow(tif, bp, sp->b.rowpixels)) - return (0); - sp->tag = G3_2D; - } else { - if (!Fax3Encode2DRow(tif, bp, sp->refline, - sp->b.rowpixels)) - return (0); - sp->k--; - } - if (sp->k == 0) { - sp->tag = G3_1D; - sp->k = sp->maxk-1; - } else - _TIFFmemcpy(sp->refline, bp, sp->b.rowbytes); - } else { - if (!Fax3Encode1DRow(tif, bp, sp->b.rowpixels)) - return (0); - } - bp += sp->b.rowbytes; - cc -= sp->b.rowbytes; - } - return (1); -} - -static int -Fax3PostEncode(TIFF* tif) -{ - Fax3CodecState* sp = EncoderState(tif); - - if (sp->bit != 8) - Fax3FlushBits(tif, sp); - return (1); -} - -static void -Fax3Close(TIFF* tif) -{ - if ((Fax3State(tif)->mode & FAXMODE_NORTC) == 0) { - Fax3CodecState* sp = EncoderState(tif); - unsigned int code = EOL; - unsigned int length = 12; - int i; - - if (is2DEncoding(sp)) - code = (code<<1) | (sp->tag == G3_1D), length++; - for (i = 0; i < 6; i++) - Fax3PutBits(tif, code, length); - Fax3FlushBits(tif, sp); - } -} - -static void -Fax3Cleanup(TIFF* tif) -{ - Fax3CodecState* sp = DecoderState(tif); - - assert(sp != 0); - - tif->tif_tagmethods.vgetfield = sp->b.vgetparent; - tif->tif_tagmethods.vsetfield = sp->b.vsetparent; - tif->tif_tagmethods.printdir = sp->b.printdir; - - if (sp->runs) - _TIFFfree(sp->runs); - if (sp->refline) - _TIFFfree(sp->refline); - - _TIFFfree(tif->tif_data); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -#define FIELD_BADFAXLINES (FIELD_CODEC+0) -#define FIELD_CLEANFAXDATA (FIELD_CODEC+1) -#define FIELD_BADFAXRUN (FIELD_CODEC+2) - -#define FIELD_OPTIONS (FIELD_CODEC+7) - -static const TIFFField faxFields[] = { - { TIFFTAG_FAXMODE, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "FaxMode", NULL }, - { TIFFTAG_FAXFILLFUNC, 0, 0, TIFF_ANY, 0, TIFF_SETGET_OTHER, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "FaxFillFunc", NULL }, - { TIFFTAG_BADFAXLINES, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_BADFAXLINES, TRUE, FALSE, "BadFaxLines", NULL }, - { TIFFTAG_CLEANFAXDATA, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UINT16, FIELD_CLEANFAXDATA, TRUE, FALSE, "CleanFaxData", NULL }, - { TIFFTAG_CONSECUTIVEBADFAXLINES, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_BADFAXRUN, TRUE, FALSE, "ConsecutiveBadFaxLines", NULL }}; -static const TIFFField fax3Fields[] = { - { TIFFTAG_GROUP3OPTIONS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_OPTIONS, FALSE, FALSE, "Group3Options", NULL }, -}; -static const TIFFField fax4Fields[] = { - { TIFFTAG_GROUP4OPTIONS, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_OPTIONS, FALSE, FALSE, "Group4Options", NULL }, -}; - -static int -Fax3VSetField(TIFF* tif, uint32 tag, va_list ap) -{ - Fax3BaseState* sp = Fax3State(tif); - const TIFFField* fip; - - assert(sp != 0); - assert(sp->vsetparent != 0); - - switch (tag) { - case TIFFTAG_FAXMODE: - sp->mode = (int) va_arg(ap, int); - return 1; /* NB: pseudo tag */ - case TIFFTAG_FAXFILLFUNC: - DecoderState(tif)->fill = va_arg(ap, TIFFFaxFillFunc); - return 1; /* NB: pseudo tag */ - case TIFFTAG_GROUP3OPTIONS: - /* XXX: avoid reading options if compression mismatches. */ - if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX3) - sp->groupoptions = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_GROUP4OPTIONS: - /* XXX: avoid reading options if compression mismatches. */ - if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4) - sp->groupoptions = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_BADFAXLINES: - sp->badfaxlines = (uint32) va_arg(ap, uint32); - break; - case TIFFTAG_CLEANFAXDATA: - sp->cleanfaxdata = (uint16) va_arg(ap, uint16_vap); - break; - case TIFFTAG_CONSECUTIVEBADFAXLINES: - sp->badfaxrun = (uint32) va_arg(ap, uint32); - break; - default: - return (*sp->vsetparent)(tif, tag, ap); - } - - if ((fip = TIFFFieldWithTag(tif, tag))) - TIFFSetFieldBit(tif, fip->field_bit); - else - return 0; - - tif->tif_flags |= TIFF_DIRTYDIRECT; - return 1; -} - -static int -Fax3VGetField(TIFF* tif, uint32 tag, va_list ap) -{ - Fax3BaseState* sp = Fax3State(tif); - - assert(sp != 0); - - switch (tag) { - case TIFFTAG_FAXMODE: - *va_arg(ap, int*) = sp->mode; - break; - case TIFFTAG_FAXFILLFUNC: - *va_arg(ap, TIFFFaxFillFunc*) = DecoderState(tif)->fill; - break; - case TIFFTAG_GROUP3OPTIONS: - case TIFFTAG_GROUP4OPTIONS: - *va_arg(ap, uint32*) = sp->groupoptions; - break; - case TIFFTAG_BADFAXLINES: - *va_arg(ap, uint32*) = sp->badfaxlines; - break; - case TIFFTAG_CLEANFAXDATA: - *va_arg(ap, uint16*) = sp->cleanfaxdata; - break; - case TIFFTAG_CONSECUTIVEBADFAXLINES: - *va_arg(ap, uint32*) = sp->badfaxrun; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return (1); -} - -static void -Fax3PrintDir(TIFF* tif, FILE* fd, long flags) -{ - Fax3BaseState* sp = Fax3State(tif); - - assert(sp != 0); - - (void) flags; - if (TIFFFieldSet(tif,FIELD_OPTIONS)) { - const char* sep = " "; - if (tif->tif_dir.td_compression == COMPRESSION_CCITTFAX4) { - fprintf(fd, " Group 4 Options:"); - if (sp->groupoptions & GROUP4OPT_UNCOMPRESSED) - fprintf(fd, "%suncompressed data", sep); - } else { - - fprintf(fd, " Group 3 Options:"); - if (sp->groupoptions & GROUP3OPT_2DENCODING) - fprintf(fd, "%s2-d encoding", sep), sep = "+"; - if (sp->groupoptions & GROUP3OPT_FILLBITS) - fprintf(fd, "%sEOL padding", sep), sep = "+"; - if (sp->groupoptions & GROUP3OPT_UNCOMPRESSED) - fprintf(fd, "%suncompressed data", sep); - } - fprintf(fd, " (%lu = 0x%lx)\n", - (unsigned long) sp->groupoptions, - (unsigned long) sp->groupoptions); - } - if (TIFFFieldSet(tif,FIELD_CLEANFAXDATA)) { - fprintf(fd, " Fax Data:"); - switch (sp->cleanfaxdata) { - case CLEANFAXDATA_CLEAN: - fprintf(fd, " clean"); - break; - case CLEANFAXDATA_REGENERATED: - fprintf(fd, " receiver regenerated"); - break; - case CLEANFAXDATA_UNCLEAN: - fprintf(fd, " uncorrected errors"); - break; - } - fprintf(fd, " (%u = 0x%x)\n", - sp->cleanfaxdata, sp->cleanfaxdata); - } - if (TIFFFieldSet(tif,FIELD_BADFAXLINES)) - fprintf(fd, " Bad Fax Lines: %lu\n", - (unsigned long) sp->badfaxlines); - if (TIFFFieldSet(tif,FIELD_BADFAXRUN)) - fprintf(fd, " Consecutive Bad Fax Lines: %lu\n", - (unsigned long) sp->badfaxrun); - if (sp->printdir) - (*sp->printdir)(tif, fd, flags); -} - -static int -InitCCITTFax3(TIFF* tif) -{ - static const char module[] = "InitCCITTFax3"; - Fax3BaseState* sp; - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, faxFields, TIFFArrayCount(faxFields))) { - TIFFErrorExt(tif->tif_clientdata, "InitCCITTFax3", - "Merging common CCITT Fax codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) - _TIFFmalloc(sizeof (Fax3CodecState)); - - if (tif->tif_data == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, - "No space for state block"); - return (0); - } - - sp = Fax3State(tif); - sp->rw_mode = tif->tif_mode; - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = Fax3VGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = Fax3VSetField; /* hook for codec tags */ - sp->printdir = tif->tif_tagmethods.printdir; - tif->tif_tagmethods.printdir = Fax3PrintDir; /* hook for codec tags */ - sp->groupoptions = 0; - - if (sp->rw_mode == O_RDONLY) /* FIXME: improve for in place update */ - tif->tif_flags |= TIFF_NOBITREV; /* decoder does bit reversal */ - DecoderState(tif)->runs = NULL; - TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, _TIFFFax3fillruns); - EncoderState(tif)->refline = NULL; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = Fax3FixupTags; - tif->tif_setupdecode = Fax3SetupState; - tif->tif_predecode = Fax3PreDecode; - tif->tif_decoderow = Fax3Decode1D; - tif->tif_decodestrip = Fax3Decode1D; - tif->tif_decodetile = Fax3Decode1D; - tif->tif_setupencode = Fax3SetupState; - tif->tif_preencode = Fax3PreEncode; - tif->tif_postencode = Fax3PostEncode; - tif->tif_encoderow = Fax3Encode; - tif->tif_encodestrip = Fax3Encode; - tif->tif_encodetile = Fax3Encode; - tif->tif_close = Fax3Close; - tif->tif_cleanup = Fax3Cleanup; - - return (1); -} - -int -TIFFInitCCITTFax3(TIFF* tif, int scheme) -{ - (void) scheme; - if (InitCCITTFax3(tif)) { - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, fax3Fields, - TIFFArrayCount(fax3Fields))) { - TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax3", - "Merging CCITT Fax 3 codec-specific tags failed"); - return 0; - } - - /* - * The default format is Class/F-style w/o RTC. - */ - return TIFFSetField(tif, TIFFTAG_FAXMODE, FAXMODE_CLASSF); - } else - return 01; -} - -/* - * CCITT Group 4 (T.6) Facsimile-compatible - * Compression Scheme Support. - */ - -#define SWAP(t,a,b) { t x; x = (a); (a) = (b); (b) = x; } -/* - * Decode the requested amount of G4-encoded data. - */ -static int -Fax4Decode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - DECLARE_STATE_2D(tif, sp, "Fax4Decode"); - (void) s; - if (occ % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (-1); - } - CACHE_STATE(tif, sp); - while (occ > 0) { - a0 = 0; - RunLength = 0; - pa = thisrun = sp->curruns; - pb = sp->refruns; - b1 = *pb++; -#ifdef FAX3_DEBUG - printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); - printf("-------------------- %d\n", tif->tif_row); - fflush(stdout); -#endif - EXPAND2D(EOFG4); - if (EOLcnt) - goto EOFG4; - (*sp->fill)(buf, thisrun, pa, lastx); - SETVALUE(0); /* imaginary change for reference */ - SWAP(uint32*, sp->curruns, sp->refruns); - buf += sp->b.rowbytes; - occ -= sp->b.rowbytes; - sp->line++; - continue; - EOFG4: - NeedBits16( 13, BADG4 ); - BADG4: -#ifdef FAX3_DEBUG - if( GetBits(13) != 0x1001 ) - fputs( "Bad EOFB\n", stderr ); -#endif - ClrBits( 13 ); - (*sp->fill)(buf, thisrun, pa, lastx); - UNCACHE_STATE(tif, sp); - return ( sp->line ? 1 : -1); /* don't error on badly-terminated strips */ - } - UNCACHE_STATE(tif, sp); - return (1); -} -#undef SWAP - -/* - * Encode the requested amount of data. - */ -static int -Fax4Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - static const char module[] = "Fax4Encode"; - Fax3CodecState *sp = EncoderState(tif); - (void) s; - if (cc % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be written"); - return (0); - } - while (cc > 0) { - if (!Fax3Encode2DRow(tif, bp, sp->refline, sp->b.rowpixels)) - return (0); - _TIFFmemcpy(sp->refline, bp, sp->b.rowbytes); - bp += sp->b.rowbytes; - cc -= sp->b.rowbytes; - } - return (1); -} - -static int -Fax4PostEncode(TIFF* tif) -{ - Fax3CodecState *sp = EncoderState(tif); - - /* terminate strip w/ EOFB */ - Fax3PutBits(tif, EOL, 12); - Fax3PutBits(tif, EOL, 12); - if (sp->bit != 8) - Fax3FlushBits(tif, sp); - return (1); -} - -int -TIFFInitCCITTFax4(TIFF* tif, int scheme) -{ - (void) scheme; - if (InitCCITTFax3(tif)) { /* reuse G3 support */ - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, fax4Fields, - TIFFArrayCount(fax4Fields))) { - TIFFErrorExt(tif->tif_clientdata, "TIFFInitCCITTFax4", - "Merging CCITT Fax 4 codec-specific tags failed"); - return 0; - } - - tif->tif_decoderow = Fax4Decode; - tif->tif_decodestrip = Fax4Decode; - tif->tif_decodetile = Fax4Decode; - tif->tif_encoderow = Fax4Encode; - tif->tif_encodestrip = Fax4Encode; - tif->tif_encodetile = Fax4Encode; - tif->tif_postencode = Fax4PostEncode; - /* - * Suppress RTC at the end of each strip. - */ - return TIFFSetField(tif, TIFFTAG_FAXMODE, FAXMODE_NORTC); - } else - return (0); -} - -/* - * CCITT Group 3 1-D Modified Huffman RLE Compression Support. - * (Compression algorithms 2 and 32771) - */ - -/* - * Decode the requested amount of RLE-encoded data. - */ -static int -Fax3DecodeRLE(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - DECLARE_STATE(tif, sp, "Fax3DecodeRLE"); - int mode = sp->b.mode; - (void) s; - if (occ % sp->b.rowbytes) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (-1); - } - CACHE_STATE(tif, sp); - thisrun = sp->curruns; - while (occ > 0) { - a0 = 0; - RunLength = 0; - pa = thisrun; -#ifdef FAX3_DEBUG - printf("\nBitAcc=%08X, BitsAvail = %d\n", BitAcc, BitsAvail); - printf("-------------------- %d\n", tif->tif_row); - fflush(stdout); -#endif - EXPAND1D(EOFRLE); - (*sp->fill)(buf, thisrun, pa, lastx); - /* - * Cleanup at the end of the row. - */ - if (mode & FAXMODE_BYTEALIGN) { - int n = BitsAvail - (BitsAvail &~ 7); - ClrBits(n); - } else if (mode & FAXMODE_WORDALIGN) { - int n = BitsAvail - (BitsAvail &~ 15); - ClrBits(n); - if (BitsAvail == 0 && !isAligned(cp, uint16)) - cp++; - } - buf += sp->b.rowbytes; - occ -= sp->b.rowbytes; - sp->line++; - continue; - EOFRLE: /* premature EOF */ - (*sp->fill)(buf, thisrun, pa, lastx); - UNCACHE_STATE(tif, sp); - return (-1); - } - UNCACHE_STATE(tif, sp); - return (1); -} - -int -TIFFInitCCITTRLE(TIFF* tif, int scheme) -{ - (void) scheme; - if (InitCCITTFax3(tif)) { /* reuse G3 support */ - tif->tif_decoderow = Fax3DecodeRLE; - tif->tif_decodestrip = Fax3DecodeRLE; - tif->tif_decodetile = Fax3DecodeRLE; - /* - * Suppress RTC+EOLs when encoding and byte-align data. - */ - return TIFFSetField(tif, TIFFTAG_FAXMODE, - FAXMODE_NORTC|FAXMODE_NOEOL|FAXMODE_BYTEALIGN); - } else - return (0); -} - -int -TIFFInitCCITTRLEW(TIFF* tif, int scheme) -{ - (void) scheme; - if (InitCCITTFax3(tif)) { /* reuse G3 support */ - tif->tif_decoderow = Fax3DecodeRLE; - tif->tif_decodestrip = Fax3DecodeRLE; - tif->tif_decodetile = Fax3DecodeRLE; - /* - * Suppress RTC+EOLs when encoding and word-align data. - */ - return TIFFSetField(tif, TIFFTAG_FAXMODE, - FAXMODE_NORTC|FAXMODE_NOEOL|FAXMODE_WORDALIGN); - } else - return (0); -} -#endif /* CCITT_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_fax3.h b/tiff/libtiff/tif_fax3.h deleted file mode 100755 index b0f46c9..0000000 --- a/tiff/libtiff/tif_fax3.h +++ /dev/null @@ -1,538 +0,0 @@ -/* $Id: tif_fax3.h,v 1.9 2011-03-10 20:23:07 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1990-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _FAX3_ -#define _FAX3_ -/* - * TIFF Library. - * - * CCITT Group 3 (T.4) and Group 4 (T.6) Decompression Support. - * - * Decoder support is derived, with permission, from the code - * in Frank Cringle's viewfax program; - * Copyright (C) 1990, 1995 Frank D. Cringle. - */ -#include "tiff.h" - -/* - * To override the default routine used to image decoded - * spans one can use the pseduo tag TIFFTAG_FAXFILLFUNC. - * The routine must have the type signature given below; - * for example: - * - * fillruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) - * - * where buf is place to set the bits, runs is the array of b&w run - * lengths (white then black), erun is the last run in the array, and - * lastx is the width of the row in pixels. Fill routines can assume - * the run array has room for at least lastx runs and can overwrite - * data in the run array as needed (e.g. to append zero runs to bring - * the count up to a nice multiple). - */ -typedef void (*TIFFFaxFillFunc)(unsigned char*, uint32*, uint32*, uint32); - -/* - * The default run filler; made external for other decoders. - */ -#if defined(__cplusplus) -extern "C" { -#endif -extern void _TIFFFax3fillruns(unsigned char*, uint32*, uint32*, uint32); -#if defined(__cplusplus) -} -#endif - - -/* finite state machine codes */ -#define S_Null 0 -#define S_Pass 1 -#define S_Horiz 2 -#define S_V0 3 -#define S_VR 4 -#define S_VL 5 -#define S_Ext 6 -#define S_TermW 7 -#define S_TermB 8 -#define S_MakeUpW 9 -#define S_MakeUpB 10 -#define S_MakeUp 11 -#define S_EOL 12 - -typedef struct { /* state table entry */ - unsigned char State; /* see above */ - unsigned char Width; /* width of code in bits */ - uint32 Param; /* unsigned 32-bit run length in bits */ -} TIFFFaxTabEnt; - -extern const TIFFFaxTabEnt TIFFFaxMainTable[]; -extern const TIFFFaxTabEnt TIFFFaxWhiteTable[]; -extern const TIFFFaxTabEnt TIFFFaxBlackTable[]; - -/* - * The following macros define the majority of the G3/G4 decoder - * algorithm using the state tables defined elsewhere. To build - * a decoder you need some setup code and some glue code. Note - * that you may also need/want to change the way the NeedBits* - * macros get input data if, for example, you know the data to be - * decoded is properly aligned and oriented (doing so before running - * the decoder can be a big performance win). - * - * Consult the decoder in the TIFF library for an idea of what you - * need to define and setup to make use of these definitions. - * - * NB: to enable a debugging version of these macros define FAX3_DEBUG - * before including this file. Trace output goes to stdout. - */ - -#ifndef EndOfData -#define EndOfData() (cp >= ep) -#endif -/* - * Need <=8 or <=16 bits of input data. Unlike viewfax we - * cannot use/assume a word-aligned, properly bit swizzled - * input data set because data may come from an arbitrarily - * aligned, read-only source such as a memory-mapped file. - * Note also that the viewfax decoder does not check for - * running off the end of the input data buffer. This is - * possible for G3-encoded data because it prescans the input - * data to count EOL markers, but can cause problems for G4 - * data. In any event, we don't prescan and must watch for - * running out of data since we can't permit the library to - * scan past the end of the input data buffer. - * - * Finally, note that we must handle remaindered data at the end - * of a strip specially. The coder asks for a fixed number of - * bits when scanning for the next code. This may be more bits - * than are actually present in the data stream. If we appear - * to run out of data but still have some number of valid bits - * remaining then we makeup the requested amount with zeros and - * return successfully. If the returned data is incorrect then - * we should be called again and get a premature EOF error; - * otherwise we should get the right answer. - */ -#ifndef NeedBits8 -#define NeedBits8(n,eoflab) do { \ - if (BitsAvail < (n)) { \ - if (EndOfData()) { \ - if (BitsAvail == 0) /* no valid bits */ \ - goto eoflab; \ - BitsAvail = (n); /* pad with zeros */ \ - } else { \ - BitAcc |= ((uint32) bitmap[*cp++])<>= (n); \ -} while (0) - -#ifdef FAX3_DEBUG -static const char* StateNames[] = { - "Null ", - "Pass ", - "Horiz ", - "V0 ", - "VR ", - "VL ", - "Ext ", - "TermW ", - "TermB ", - "MakeUpW", - "MakeUpB", - "MakeUp ", - "EOL ", -}; -#define DEBUG_SHOW putchar(BitAcc & (1 << t) ? '1' : '0') -#define LOOKUP8(wid,tab,eoflab) do { \ - int t; \ - NeedBits8(wid,eoflab); \ - TabEnt = tab + GetBits(wid); \ - printf("%08lX/%d: %s%5d\t", (long) BitAcc, BitsAvail, \ - StateNames[TabEnt->State], TabEnt->Param); \ - for (t = 0; t < TabEnt->Width; t++) \ - DEBUG_SHOW; \ - putchar('\n'); \ - fflush(stdout); \ - ClrBits(TabEnt->Width); \ -} while (0) -#define LOOKUP16(wid,tab,eoflab) do { \ - int t; \ - NeedBits16(wid,eoflab); \ - TabEnt = tab + GetBits(wid); \ - printf("%08lX/%d: %s%5d\t", (long) BitAcc, BitsAvail, \ - StateNames[TabEnt->State], TabEnt->Param); \ - for (t = 0; t < TabEnt->Width; t++) \ - DEBUG_SHOW; \ - putchar('\n'); \ - fflush(stdout); \ - ClrBits(TabEnt->Width); \ -} while (0) - -#define SETVALUE(x) do { \ - *pa++ = RunLength + (x); \ - printf("SETVALUE: %d\t%d\n", RunLength + (x), a0); \ - a0 += x; \ - RunLength = 0; \ -} while (0) -#else -#define LOOKUP8(wid,tab,eoflab) do { \ - NeedBits8(wid,eoflab); \ - TabEnt = tab + GetBits(wid); \ - ClrBits(TabEnt->Width); \ -} while (0) -#define LOOKUP16(wid,tab,eoflab) do { \ - NeedBits16(wid,eoflab); \ - TabEnt = tab + GetBits(wid); \ - ClrBits(TabEnt->Width); \ -} while (0) - -/* - * Append a run to the run length array for the - * current row and reset decoding state. - */ -#define SETVALUE(x) do { \ - *pa++ = RunLength + (x); \ - a0 += (x); \ - RunLength = 0; \ -} while (0) -#endif - -/* - * Synchronize input decoding at the start of each - * row by scanning for an EOL (if appropriate) and - * skipping any trash data that might be present - * after a decoding error. Note that the decoding - * done elsewhere that recognizes an EOL only consumes - * 11 consecutive zero bits. This means that if EOLcnt - * is non-zero then we still need to scan for the final flag - * bit that is part of the EOL code. - */ -#define SYNC_EOL(eoflab) do { \ - if (EOLcnt == 0) { \ - for (;;) { \ - NeedBits16(11,eoflab); \ - if (GetBits(11) == 0) \ - break; \ - ClrBits(1); \ - } \ - } \ - for (;;) { \ - NeedBits8(8,eoflab); \ - if (GetBits(8)) \ - break; \ - ClrBits(8); \ - } \ - while (GetBits(1) == 0) \ - ClrBits(1); \ - ClrBits(1); /* EOL bit */ \ - EOLcnt = 0; /* reset EOL counter/flag */ \ -} while (0) - -/* - * Cleanup the array of runs after decoding a row. - * We adjust final runs to insure the user buffer is not - * overwritten and/or undecoded area is white filled. - */ -#define CLEANUP_RUNS() do { \ - if (RunLength) \ - SETVALUE(0); \ - if (a0 != lastx) { \ - badlength(a0, lastx); \ - while (a0 > lastx && pa > thisrun) \ - a0 -= *--pa; \ - if (a0 < lastx) { \ - if (a0 < 0) \ - a0 = 0; \ - if ((pa-thisrun)&1) \ - SETVALUE(0); \ - SETVALUE(lastx - a0); \ - } else if (a0 > lastx) { \ - SETVALUE(lastx); \ - SETVALUE(0); \ - } \ - } \ -} while (0) - -/* - * Decode a line of 1D-encoded data. - * - * The line expanders are written as macros so that they can be reused - * but still have direct access to the local variables of the "calling" - * function. - * - * Note that unlike the original version we have to explicitly test for - * a0 >= lastx after each black/white run is decoded. This is because - * the original code depended on the input data being zero-padded to - * insure the decoder recognized an EOL before running out of data. - */ -#define EXPAND1D(eoflab) do { \ - for (;;) { \ - for (;;) { \ - LOOKUP16(12, TIFFFaxWhiteTable, eof1d); \ - switch (TabEnt->State) { \ - case S_EOL: \ - EOLcnt = 1; \ - goto done1d; \ - case S_TermW: \ - SETVALUE(TabEnt->Param); \ - goto doneWhite1d; \ - case S_MakeUpW: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - unexpected("WhiteTable", a0); \ - goto done1d; \ - } \ - } \ - doneWhite1d: \ - if (a0 >= lastx) \ - goto done1d; \ - for (;;) { \ - LOOKUP16(13, TIFFFaxBlackTable, eof1d); \ - switch (TabEnt->State) { \ - case S_EOL: \ - EOLcnt = 1; \ - goto done1d; \ - case S_TermB: \ - SETVALUE(TabEnt->Param); \ - goto doneBlack1d; \ - case S_MakeUpB: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - unexpected("BlackTable", a0); \ - goto done1d; \ - } \ - } \ - doneBlack1d: \ - if (a0 >= lastx) \ - goto done1d; \ - if( *(pa-1) == 0 && *(pa-2) == 0 ) \ - pa -= 2; \ - } \ -eof1d: \ - prematureEOF(a0); \ - CLEANUP_RUNS(); \ - goto eoflab; \ -done1d: \ - CLEANUP_RUNS(); \ -} while (0) - -/* - * Update the value of b1 using the array - * of runs for the reference line. - */ -#define CHECK_b1 do { \ - if (pa != thisrun) while (b1 <= a0 && b1 < lastx) { \ - b1 += pb[0] + pb[1]; \ - pb += 2; \ - } \ -} while (0) - -/* - * Expand a row of 2D-encoded data. - */ -#define EXPAND2D(eoflab) do { \ - while (a0 < lastx) { \ - LOOKUP8(7, TIFFFaxMainTable, eof2d); \ - switch (TabEnt->State) { \ - case S_Pass: \ - CHECK_b1; \ - b1 += *pb++; \ - RunLength += b1 - a0; \ - a0 = b1; \ - b1 += *pb++; \ - break; \ - case S_Horiz: \ - if ((pa-thisrun)&1) { \ - for (;;) { /* black first */ \ - LOOKUP16(13, TIFFFaxBlackTable, eof2d); \ - switch (TabEnt->State) { \ - case S_TermB: \ - SETVALUE(TabEnt->Param); \ - goto doneWhite2da; \ - case S_MakeUpB: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - goto badBlack2d; \ - } \ - } \ - doneWhite2da:; \ - for (;;) { /* then white */ \ - LOOKUP16(12, TIFFFaxWhiteTable, eof2d); \ - switch (TabEnt->State) { \ - case S_TermW: \ - SETVALUE(TabEnt->Param); \ - goto doneBlack2da; \ - case S_MakeUpW: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - goto badWhite2d; \ - } \ - } \ - doneBlack2da:; \ - } else { \ - for (;;) { /* white first */ \ - LOOKUP16(12, TIFFFaxWhiteTable, eof2d); \ - switch (TabEnt->State) { \ - case S_TermW: \ - SETVALUE(TabEnt->Param); \ - goto doneWhite2db; \ - case S_MakeUpW: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - goto badWhite2d; \ - } \ - } \ - doneWhite2db:; \ - for (;;) { /* then black */ \ - LOOKUP16(13, TIFFFaxBlackTable, eof2d); \ - switch (TabEnt->State) { \ - case S_TermB: \ - SETVALUE(TabEnt->Param); \ - goto doneBlack2db; \ - case S_MakeUpB: \ - case S_MakeUp: \ - a0 += TabEnt->Param; \ - RunLength += TabEnt->Param; \ - break; \ - default: \ - goto badBlack2d; \ - } \ - } \ - doneBlack2db:; \ - } \ - CHECK_b1; \ - break; \ - case S_V0: \ - CHECK_b1; \ - SETVALUE(b1 - a0); \ - b1 += *pb++; \ - break; \ - case S_VR: \ - CHECK_b1; \ - SETVALUE(b1 - a0 + TabEnt->Param); \ - b1 += *pb++; \ - break; \ - case S_VL: \ - CHECK_b1; \ - if (b1 <= (int) (a0 + TabEnt->Param)) { \ - if (b1 < (int) (a0 + TabEnt->Param) || pa != thisrun) { \ - unexpected("VL", a0); \ - goto eol2d; \ - } \ - } \ - SETVALUE(b1 - a0 - TabEnt->Param); \ - b1 -= *--pb; \ - break; \ - case S_Ext: \ - *pa++ = lastx - a0; \ - extension(a0); \ - goto eol2d; \ - case S_EOL: \ - *pa++ = lastx - a0; \ - NeedBits8(4,eof2d); \ - if (GetBits(4)) \ - unexpected("EOL", a0); \ - ClrBits(4); \ - EOLcnt = 1; \ - goto eol2d; \ - default: \ - badMain2d: \ - unexpected("MainTable", a0); \ - goto eol2d; \ - badBlack2d: \ - unexpected("BlackTable", a0); \ - goto eol2d; \ - badWhite2d: \ - unexpected("WhiteTable", a0); \ - goto eol2d; \ - eof2d: \ - prematureEOF(a0); \ - CLEANUP_RUNS(); \ - goto eoflab; \ - } \ - } \ - if (RunLength) { \ - if (RunLength + a0 < lastx) { \ - /* expect a final V0 */ \ - NeedBits8(1,eof2d); \ - if (!GetBits(1)) \ - goto badMain2d; \ - ClrBits(1); \ - } \ - SETVALUE(0); \ - } \ -eol2d: \ - CLEANUP_RUNS(); \ -} while (0) -#endif /* _FAX3_ */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_flush.c b/tiff/libtiff/tif_flush.c deleted file mode 100755 index fd14e4c..0000000 --- a/tiff/libtiff/tif_flush.c +++ /dev/null @@ -1,118 +0,0 @@ -/* $Id: tif_flush.c,v 1.9 2010-03-31 06:40:10 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - */ -#include "tiffiop.h" - -int -TIFFFlush(TIFF* tif) -{ - if( tif->tif_mode == O_RDONLY ) - return 1; - - if (!TIFFFlushData(tif)) - return (0); - - /* In update (r+) mode we try to detect the case where - only the strip/tile map has been altered, and we try to - rewrite only that portion of the directory without - making any other changes */ - - if( (tif->tif_flags & TIFF_DIRTYSTRIP) - && !(tif->tif_flags & TIFF_DIRTYDIRECT) - && tif->tif_mode == O_RDWR ) - { - uint64 *offsets=NULL, *sizes=NULL; - - if( TIFFIsTiled(tif) ) - { - if( TIFFGetField( tif, TIFFTAG_TILEOFFSETS, &offsets ) - && TIFFGetField( tif, TIFFTAG_TILEBYTECOUNTS, &sizes ) - && _TIFFRewriteField( tif, TIFFTAG_TILEOFFSETS, TIFF_LONG8, - tif->tif_dir.td_nstrips, offsets ) - && _TIFFRewriteField( tif, TIFFTAG_TILEBYTECOUNTS, TIFF_LONG8, - tif->tif_dir.td_nstrips, sizes ) ) - { - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - tif->tif_flags &= ~TIFF_BEENWRITING; - return 1; - } - } - else - { - if( TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &offsets ) - && TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &sizes ) - && _TIFFRewriteField( tif, TIFFTAG_STRIPOFFSETS, TIFF_LONG8, - tif->tif_dir.td_nstrips, offsets ) - && _TIFFRewriteField( tif, TIFFTAG_STRIPBYTECOUNTS, TIFF_LONG8, - tif->tif_dir.td_nstrips, sizes ) ) - { - tif->tif_flags &= ~TIFF_DIRTYSTRIP; - tif->tif_flags &= ~TIFF_BEENWRITING; - return 1; - } - } - } - - if ((tif->tif_flags & (TIFF_DIRTYDIRECT|TIFF_DIRTYSTRIP)) - && !TIFFRewriteDirectory(tif)) - return (0); - - return (1); -} - -/* - * Flush buffered data to the file. - * - * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING - * is not set, so that TIFFFlush() will proceed to write out the directory. - * The documentation says returning 1 is an error indicator, but not having - * been writing isn't exactly a an error. Hopefully this doesn't cause - * problems for other people. - */ -int -TIFFFlushData(TIFF* tif) -{ - if ((tif->tif_flags & TIFF_BEENWRITING) == 0) - return (1); - if (tif->tif_flags & TIFF_POSTENCODE) { - tif->tif_flags &= ~TIFF_POSTENCODE; - if (!(*tif->tif_postencode)(tif)) - return (0); - } - return (TIFFFlushData1(tif)); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_getimage.c b/tiff/libtiff/tif_getimage.c deleted file mode 100755 index a856cc5..0000000 --- a/tiff/libtiff/tif_getimage.c +++ /dev/null @@ -1,2890 +0,0 @@ -/* $Id: tif_getimage.c,v 1.87 2014-12-29 18:28:46 erouault Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Read and return a packed RGBA image. - */ -#include "tiffiop.h" -#include - -static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32); -static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32); -static int PickContigCase(TIFFRGBAImage*); -static int PickSeparateCase(TIFFRGBAImage*); - -static int BuildMapUaToAa(TIFFRGBAImage* img); -static int BuildMapBitdepth16To8(TIFFRGBAImage* img); - -static const char photoTag[] = "PhotometricInterpretation"; - -/* - * Helper constants used in Orientation tag handling - */ -#define FLIP_VERTICALLY 0x01 -#define FLIP_HORIZONTALLY 0x02 - -/* - * Color conversion constants. We will define display types here. - */ - -static const TIFFDisplay display_sRGB = { - { /* XYZ -> luminance matrix */ - { 3.2410F, -1.5374F, -0.4986F }, - { -0.9692F, 1.8760F, 0.0416F }, - { 0.0556F, -0.2040F, 1.0570F } - }, - 100.0F, 100.0F, 100.0F, /* Light o/p for reference white */ - 255, 255, 255, /* Pixel values for ref. white */ - 1.0F, 1.0F, 1.0F, /* Residual light o/p for black pixel */ - 2.4F, 2.4F, 2.4F, /* Gamma values for the three guns */ -}; - -/* - * Check the image to see if TIFFReadRGBAImage can deal with it. - * 1/0 is returned according to whether or not the image can - * be handled. If 0 is returned, emsg contains the reason - * why it is being rejected. - */ -int -TIFFRGBAImageOK(TIFF* tif, char emsg[1024]) -{ - TIFFDirectory* td = &tif->tif_dir; - uint16 photometric; - int colorchannels; - - if (!tif->tif_decodestatus) { - sprintf(emsg, "Sorry, requested compression method is not configured"); - return (0); - } - switch (td->td_bitspersample) { - case 1: - case 2: - case 4: - case 8: - case 16: - break; - default: - sprintf(emsg, "Sorry, can not handle images with %d-bit samples", - td->td_bitspersample); - return (0); - } - colorchannels = td->td_samplesperpixel - td->td_extrasamples; - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) { - switch (colorchannels) { - case 1: - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: - photometric = PHOTOMETRIC_RGB; - break; - default: - sprintf(emsg, "Missing needed %s tag", photoTag); - return (0); - } - } - switch (photometric) { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_PALETTE: - if (td->td_planarconfig == PLANARCONFIG_CONTIG - && td->td_samplesperpixel != 1 - && td->td_bitspersample < 8 ) { - sprintf(emsg, - "Sorry, can not handle contiguous data with %s=%d, " - "and %s=%d and Bits/Sample=%d", - photoTag, photometric, - "Samples/pixel", td->td_samplesperpixel, - td->td_bitspersample); - return (0); - } - /* - * We should likely validate that any extra samples are either - * to be ignored, or are alpha, and if alpha we should try to use - * them. But for now we won't bother with this. - */ - break; - case PHOTOMETRIC_YCBCR: - /* - * TODO: if at all meaningful and useful, make more complete - * support check here, or better still, refactor to let supporting - * code decide whether there is support and what meaningfull - * error to return - */ - break; - case PHOTOMETRIC_RGB: - if (colorchannels < 3) { - sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", - "Color channels", colorchannels); - return (0); - } - break; - case PHOTOMETRIC_SEPARATED: - { - uint16 inkset; - TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); - if (inkset != INKSET_CMYK) { - sprintf(emsg, - "Sorry, can not handle separated image with %s=%d", - "InkSet", inkset); - return 0; - } - if (td->td_samplesperpixel < 4) { - sprintf(emsg, - "Sorry, can not handle separated image with %s=%d", - "Samples/pixel", td->td_samplesperpixel); - return 0; - } - break; - } - case PHOTOMETRIC_LOGL: - if (td->td_compression != COMPRESSION_SGILOG) { - sprintf(emsg, "Sorry, LogL data must have %s=%d", - "Compression", COMPRESSION_SGILOG); - return (0); - } - break; - case PHOTOMETRIC_LOGLUV: - if (td->td_compression != COMPRESSION_SGILOG && - td->td_compression != COMPRESSION_SGILOG24) { - sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", - "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); - return (0); - } - if (td->td_planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", - "Planarconfiguration", td->td_planarconfig); - return (0); - } - if( td->td_samplesperpixel != 3 ) - { - sprintf(emsg, - "Sorry, can not handle image with %s=%d", - "Samples/pixel", td->td_samplesperpixel); - return 0; - } - break; - case PHOTOMETRIC_CIELAB: - if( td->td_samplesperpixel != 3 || td->td_bitspersample != 8 ) - { - sprintf(emsg, - "Sorry, can not handle image with %s=%d and %s=%d", - "Samples/pixel", td->td_samplesperpixel, - "Bits/sample", td->td_bitspersample); - return 0; - } - break; - default: - sprintf(emsg, "Sorry, can not handle image with %s=%d", - photoTag, photometric); - return (0); - } - return (1); -} - -void -TIFFRGBAImageEnd(TIFFRGBAImage* img) -{ - if (img->Map) - _TIFFfree(img->Map), img->Map = NULL; - if (img->BWmap) - _TIFFfree(img->BWmap), img->BWmap = NULL; - if (img->PALmap) - _TIFFfree(img->PALmap), img->PALmap = NULL; - if (img->ycbcr) - _TIFFfree(img->ycbcr), img->ycbcr = NULL; - if (img->cielab) - _TIFFfree(img->cielab), img->cielab = NULL; - if (img->UaToAa) - _TIFFfree(img->UaToAa), img->UaToAa = NULL; - if (img->Bitdepth16To8) - _TIFFfree(img->Bitdepth16To8), img->Bitdepth16To8 = NULL; - - if( img->redcmap ) { - _TIFFfree( img->redcmap ); - _TIFFfree( img->greencmap ); - _TIFFfree( img->bluecmap ); - img->redcmap = img->greencmap = img->bluecmap = NULL; - } -} - -static int -isCCITTCompression(TIFF* tif) -{ - uint16 compress; - TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); - return (compress == COMPRESSION_CCITTFAX3 || - compress == COMPRESSION_CCITTFAX4 || - compress == COMPRESSION_CCITTRLE || - compress == COMPRESSION_CCITTRLEW); -} - -int -TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024]) -{ - uint16* sampleinfo; - uint16 extrasamples; - uint16 planarconfig; - uint16 compress; - int colorchannels; - uint16 *red_orig, *green_orig, *blue_orig; - int n_color; - - /* Initialize to normal values */ - img->row_offset = 0; - img->col_offset = 0; - img->redcmap = NULL; - img->greencmap = NULL; - img->bluecmap = NULL; - img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */ - - img->tif = tif; - img->stoponerr = stop; - TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample); - switch (img->bitspersample) { - case 1: - case 2: - case 4: - case 8: - case 16: - break; - default: - sprintf(emsg, "Sorry, can not handle images with %d-bit samples", - img->bitspersample); - goto fail_return; - } - img->alpha = 0; - TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel); - TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, - &extrasamples, &sampleinfo); - if (extrasamples >= 1) - { - switch (sampleinfo[0]) { - case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */ - if (img->samplesperpixel > 3) /* correct info about alpha channel */ - img->alpha = EXTRASAMPLE_ASSOCALPHA; - break; - case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */ - case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */ - img->alpha = sampleinfo[0]; - break; - } - } - -#ifdef DEFAULT_EXTRASAMPLE_AS_ALPHA - if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) - img->photometric = PHOTOMETRIC_MINISWHITE; - - if( extrasamples == 0 - && img->samplesperpixel == 4 - && img->photometric == PHOTOMETRIC_RGB ) - { - img->alpha = EXTRASAMPLE_ASSOCALPHA; - extrasamples = 1; - } -#endif - - colorchannels = img->samplesperpixel - extrasamples; - TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress); - TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig); - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) { - switch (colorchannels) { - case 1: - if (isCCITTCompression(tif)) - img->photometric = PHOTOMETRIC_MINISWHITE; - else - img->photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: - img->photometric = PHOTOMETRIC_RGB; - break; - default: - sprintf(emsg, "Missing needed %s tag", photoTag); - goto fail_return; - } - } - switch (img->photometric) { - case PHOTOMETRIC_PALETTE: - if (!TIFFGetField(tif, TIFFTAG_COLORMAP, - &red_orig, &green_orig, &blue_orig)) { - sprintf(emsg, "Missing required \"Colormap\" tag"); - goto fail_return; - } - - /* copy the colormaps so we can modify them */ - n_color = (1L << img->bitspersample); - img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color); - if( !img->redcmap || !img->greencmap || !img->bluecmap ) { - sprintf(emsg, "Out of memory for colormap copy"); - goto fail_return; - } - - _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 ); - _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 ); - _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 ); - - /* fall thru... */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - if (planarconfig == PLANARCONFIG_CONTIG - && img->samplesperpixel != 1 - && img->bitspersample < 8 ) { - sprintf(emsg, - "Sorry, can not handle contiguous data with %s=%d, " - "and %s=%d and Bits/Sample=%d", - photoTag, img->photometric, - "Samples/pixel", img->samplesperpixel, - img->bitspersample); - goto fail_return; - } - break; - case PHOTOMETRIC_YCBCR: - /* It would probably be nice to have a reality check here. */ - if (planarconfig == PLANARCONFIG_CONTIG) - /* can rely on libjpeg to convert to RGB */ - /* XXX should restore current state on exit */ - switch (compress) { - case COMPRESSION_JPEG: - /* - * TODO: when complete tests verify complete desubsampling - * and YCbCr handling, remove use of TIFFTAG_JPEGCOLORMODE in - * favor of tif_getimage.c native handling - */ - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - img->photometric = PHOTOMETRIC_RGB; - break; - default: - /* do nothing */; - break; - } - /* - * TODO: if at all meaningful and useful, make more complete - * support check here, or better still, refactor to let supporting - * code decide whether there is support and what meaningfull - * error to return - */ - break; - case PHOTOMETRIC_RGB: - if (colorchannels < 3) { - sprintf(emsg, "Sorry, can not handle RGB image with %s=%d", - "Color channels", colorchannels); - goto fail_return; - } - break; - case PHOTOMETRIC_SEPARATED: - { - uint16 inkset; - TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset); - if (inkset != INKSET_CMYK) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "InkSet", inkset); - goto fail_return; - } - if (img->samplesperpixel < 4) { - sprintf(emsg, "Sorry, can not handle separated image with %s=%d", - "Samples/pixel", img->samplesperpixel); - goto fail_return; - } - } - break; - case PHOTOMETRIC_LOGL: - if (compress != COMPRESSION_SGILOG) { - sprintf(emsg, "Sorry, LogL data must have %s=%d", - "Compression", COMPRESSION_SGILOG); - goto fail_return; - } - TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); - img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */ - img->bitspersample = 8; - break; - case PHOTOMETRIC_LOGLUV: - if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) { - sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d", - "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24); - goto fail_return; - } - if (planarconfig != PLANARCONFIG_CONTIG) { - sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d", - "Planarconfiguration", planarconfig); - return (0); - } - TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); - img->photometric = PHOTOMETRIC_RGB; /* little white lie */ - img->bitspersample = 8; - break; - case PHOTOMETRIC_CIELAB: - break; - default: - sprintf(emsg, "Sorry, can not handle image with %s=%d", - photoTag, img->photometric); - goto fail_return; - } - img->Map = NULL; - img->BWmap = NULL; - img->PALmap = NULL; - img->ycbcr = NULL; - img->cielab = NULL; - img->UaToAa = NULL; - img->Bitdepth16To8 = NULL; - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height); - TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation); - img->isContig = - !(planarconfig == PLANARCONFIG_SEPARATE && img->samplesperpixel > 1); - if (img->isContig) { - if (!PickContigCase(img)) { - sprintf(emsg, "Sorry, can not handle image"); - goto fail_return; - } - } else { - if (!PickSeparateCase(img)) { - sprintf(emsg, "Sorry, can not handle image"); - goto fail_return; - } - } - return 1; - - fail_return: - _TIFFfree( img->redcmap ); - _TIFFfree( img->greencmap ); - _TIFFfree( img->bluecmap ); - img->redcmap = img->greencmap = img->bluecmap = NULL; - return 0; -} - -int -TIFFRGBAImageGet(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - if (img->get == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No \"get\" routine setup"); - return (0); - } - if (img->put.any == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), - "No \"put\" routine setupl; probably can not handle image format"); - return (0); - } - return (*img->get)(img, raster, w, h); -} - -/* - * Read the specified image into an ABGR-format rastertaking in account - * specified orientation. - */ -int -TIFFReadRGBAImageOriented(TIFF* tif, - uint32 rwidth, uint32 rheight, uint32* raster, - int orientation, int stop) -{ - char emsg[1024] = ""; - TIFFRGBAImage img; - int ok; - - if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, stop, emsg)) { - img.req_orientation = orientation; - /* XXX verify rwidth and rheight against width and height */ - ok = TIFFRGBAImageGet(&img, raster+(rheight-img.height)*rwidth, - rwidth, img.height); - TIFFRGBAImageEnd(&img); - } else { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); - ok = 0; - } - return (ok); -} - -/* - * Read the specified image into an ABGR-format raster. Use bottom left - * origin for raster by default. - */ -int -TIFFReadRGBAImage(TIFF* tif, - uint32 rwidth, uint32 rheight, uint32* raster, int stop) -{ - return TIFFReadRGBAImageOriented(tif, rwidth, rheight, raster, - ORIENTATION_BOTLEFT, stop); -} - -static int -setorientation(TIFFRGBAImage* img) -{ - switch (img->orientation) { - case ORIENTATION_TOPLEFT: - case ORIENTATION_LEFTTOP: - if (img->req_orientation == ORIENTATION_TOPRIGHT || - img->req_orientation == ORIENTATION_RIGHTTOP) - return FLIP_HORIZONTALLY; - else if (img->req_orientation == ORIENTATION_BOTRIGHT || - img->req_orientation == ORIENTATION_RIGHTBOT) - return FLIP_HORIZONTALLY | FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_BOTLEFT || - img->req_orientation == ORIENTATION_LEFTBOT) - return FLIP_VERTICALLY; - else - return 0; - case ORIENTATION_TOPRIGHT: - case ORIENTATION_RIGHTTOP: - if (img->req_orientation == ORIENTATION_TOPLEFT || - img->req_orientation == ORIENTATION_LEFTTOP) - return FLIP_HORIZONTALLY; - else if (img->req_orientation == ORIENTATION_BOTRIGHT || - img->req_orientation == ORIENTATION_RIGHTBOT) - return FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_BOTLEFT || - img->req_orientation == ORIENTATION_LEFTBOT) - return FLIP_HORIZONTALLY | FLIP_VERTICALLY; - else - return 0; - case ORIENTATION_BOTRIGHT: - case ORIENTATION_RIGHTBOT: - if (img->req_orientation == ORIENTATION_TOPLEFT || - img->req_orientation == ORIENTATION_LEFTTOP) - return FLIP_HORIZONTALLY | FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_TOPRIGHT || - img->req_orientation == ORIENTATION_RIGHTTOP) - return FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_BOTLEFT || - img->req_orientation == ORIENTATION_LEFTBOT) - return FLIP_HORIZONTALLY; - else - return 0; - case ORIENTATION_BOTLEFT: - case ORIENTATION_LEFTBOT: - if (img->req_orientation == ORIENTATION_TOPLEFT || - img->req_orientation == ORIENTATION_LEFTTOP) - return FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_TOPRIGHT || - img->req_orientation == ORIENTATION_RIGHTTOP) - return FLIP_HORIZONTALLY | FLIP_VERTICALLY; - else if (img->req_orientation == ORIENTATION_BOTRIGHT || - img->req_orientation == ORIENTATION_RIGHTBOT) - return FLIP_HORIZONTALLY; - else - return 0; - default: /* NOTREACHED */ - return 0; - } -} - -/* - * Get an tile-organized image that has - * PlanarConfiguration contiguous if SamplesPerPixel > 1 - * or - * SamplesPerPixel == 1 - */ -static int -gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - tileContigRoutine put = img->put.contig; - uint32 col, row, y, rowstoread; - tmsize_t pos; - uint32 tw, th; - unsigned char* buf; - int32 fromskew, toskew; - uint32 nrow; - int ret = 1, flip; - - buf = (unsigned char*) _TIFFmalloc(TIFFTileSize(tif)); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer"); - return (0); - } - _TIFFmemset(buf, 0, TIFFTileSize(tif)); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(tw + w); - } - else { - y = 0; - toskew = -(int32)(tw - w); - } - - for (row = 0; row < h; row += nrow) - { - rowstoread = th - (row + img->row_offset) % th; - nrow = (row + rowstoread > h ? h - row : rowstoread); - for (col = 0; col < w; col += tw) - { - if (TIFFReadTile(tif, buf, col+img->col_offset, - row+img->row_offset, 0, 0)==(tmsize_t)(-1) && img->stoponerr) - { - ret = 0; - break; - } - - pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); - - if (col + tw > w) - { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - uint32 npix = w - col; - fromskew = tw - npix; - (*put)(img, raster+y*w+col, col, y, - npix, nrow, fromskew, toskew + fromskew, buf + pos); - } - else - { - (*put)(img, raster+y*w+col, col, y, tw, nrow, 0, toskew, buf + pos); - } - } - - y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); - } - _TIFFfree(buf); - - if (flip & FLIP_HORIZONTALLY) { - uint32 line; - - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } - - return (ret); -} - -/* - * Get an tile-organized image that has - * SamplesPerPixel > 1 - * PlanarConfiguration separated - * We assume that all such images are RGB. - */ -static int -gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - tileSeparateRoutine put = img->put.separate; - uint32 col, row, y, rowstoread; - tmsize_t pos; - uint32 tw, th; - unsigned char* buf; - unsigned char* p0; - unsigned char* p1; - unsigned char* p2; - unsigned char* pa; - tmsize_t tilesize; - tmsize_t bufsize; - int32 fromskew, toskew; - int alpha = img->alpha; - uint32 nrow; - int ret = 1, flip; - int colorchannels; - - tilesize = TIFFTileSize(tif); - bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,tilesize); - if (bufsize == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtTileSeparate"); - return (0); - } - buf = (unsigned char*) _TIFFmalloc(bufsize); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer"); - return (0); - } - _TIFFmemset(buf, 0, bufsize); - p0 = buf; - p1 = p0 + tilesize; - p2 = p1 + tilesize; - pa = (alpha?(p2+tilesize):NULL); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(tw + w); - } - else { - y = 0; - toskew = -(int32)(tw - w); - } - - switch( img->photometric ) - { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_PALETTE: - colorchannels = 1; - p2 = p1 = p0; - break; - - default: - colorchannels = 3; - break; - } - - for (row = 0; row < h; row += nrow) - { - rowstoread = th - (row + img->row_offset) % th; - nrow = (row + rowstoread > h ? h - row : rowstoread); - for (col = 0; col < w; col += tw) - { - if (TIFFReadTile(tif, p0, col+img->col_offset, - row+img->row_offset,0,0)==(tmsize_t)(-1) && img->stoponerr) - { - ret = 0; - break; - } - if (colorchannels > 1 - && TIFFReadTile(tif, p1, col+img->col_offset, - row+img->row_offset,0,1) == (tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - if (colorchannels > 1 - && TIFFReadTile(tif, p2, col+img->col_offset, - row+img->row_offset,0,2) == (tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - if (alpha - && TIFFReadTile(tif,pa,col+img->col_offset, - row+img->row_offset,0,colorchannels) == (tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - - pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif); - - if (col + tw > w) - { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - uint32 npix = w - col; - fromskew = tw - npix; - (*put)(img, raster+y*w+col, col, y, - npix, nrow, fromskew, toskew + fromskew, - p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); - } else { - (*put)(img, raster+y*w+col, col, y, - tw, nrow, 0, toskew, p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL)); - } - } - - y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow); - } - - if (flip & FLIP_HORIZONTALLY) { - uint32 line; - - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } - - _TIFFfree(buf); - return (ret); -} - -/* - * Get a strip-organized image that has - * PlanarConfiguration contiguous if SamplesPerPixel > 1 - * or - * SamplesPerPixel == 1 - */ -static int -gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - tileContigRoutine put = img->put.contig; - uint32 row, y, nrow, nrowsub, rowstoread; - tmsize_t pos; - unsigned char* buf; - uint32 rowsperstrip; - uint16 subsamplinghor,subsamplingver; - uint32 imagewidth = img->width; - tmsize_t scanline; - int32 fromskew, toskew; - int ret = 1, flip; - - TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver); - if( subsamplingver == 0 ) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Invalid vertical YCbCr subsampling"); - return (0); - } - - buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif)); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer"); - return (0); - } - _TIFFmemset(buf, 0, TIFFStripSize(tif)); - - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(w + w); - } else { - y = 0; - toskew = -(int32)(w - w); - } - - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += nrow) - { - rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; - nrow = (row + rowstoread > h ? h - row : rowstoread); - nrowsub = nrow; - if ((nrowsub%subsamplingver)!=0) - nrowsub+=subsamplingver-nrowsub%subsamplingver; - if (TIFFReadEncodedStrip(tif, - TIFFComputeStrip(tif,row+img->row_offset, 0), - buf, - ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline)==(tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - - pos = ((row + img->row_offset) % rowsperstrip) * scanline; - (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos); - y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); - } - - if (flip & FLIP_HORIZONTALLY) { - uint32 line; - - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } - - _TIFFfree(buf); - return (ret); -} - -/* - * Get a strip-organized image with - * SamplesPerPixel > 1 - * PlanarConfiguration separated - * We assume that all such images are RGB. - */ -static int -gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h) -{ - TIFF* tif = img->tif; - tileSeparateRoutine put = img->put.separate; - unsigned char *buf; - unsigned char *p0, *p1, *p2, *pa; - uint32 row, y, nrow, rowstoread; - tmsize_t pos; - tmsize_t scanline; - uint32 rowsperstrip, offset_row; - uint32 imagewidth = img->width; - tmsize_t stripsize; - tmsize_t bufsize; - int32 fromskew, toskew; - int alpha = img->alpha; - int ret = 1, flip, colorchannels; - - stripsize = TIFFStripSize(tif); - bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,stripsize); - if (bufsize == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtStripSeparate"); - return (0); - } - p0 = buf = (unsigned char *)_TIFFmalloc(bufsize); - if (buf == 0) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer"); - return (0); - } - _TIFFmemset(buf, 0, bufsize); - p1 = p0 + stripsize; - p2 = p1 + stripsize; - pa = (alpha?(p2+stripsize):NULL); - - flip = setorientation(img); - if (flip & FLIP_VERTICALLY) { - y = h - 1; - toskew = -(int32)(w + w); - } - else { - y = 0; - toskew = -(int32)(w - w); - } - - switch( img->photometric ) - { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_PALETTE: - colorchannels = 1; - p2 = p1 = p0; - break; - - default: - colorchannels = 3; - break; - } - - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - scanline = TIFFScanlineSize(tif); - fromskew = (w < imagewidth ? imagewidth - w : 0); - for (row = 0; row < h; row += nrow) - { - rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip; - nrow = (row + rowstoread > h ? h - row : rowstoread); - offset_row = row + img->row_offset; - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0), - p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - if (colorchannels > 1 - && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1), - p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - if (colorchannels > 1 - && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2), - p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - if (alpha) - { - if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, colorchannels), - pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1) - && img->stoponerr) - { - ret = 0; - break; - } - } - - pos = ((row + img->row_offset) % rowsperstrip) * scanline; - (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, p0 + pos, p1 + pos, - p2 + pos, (alpha?(pa+pos):NULL)); - y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow); - } - - if (flip & FLIP_HORIZONTALLY) { - uint32 line; - - for (line = 0; line < h; line++) { - uint32 *left = raster + (line * w); - uint32 *right = left + w - 1; - - while ( left < right ) { - uint32 temp = *left; - *left = *right; - *right = temp; - left++, right--; - } - } - } - - _TIFFfree(buf); - return (ret); -} - -/* - * The following routines move decoded data returned - * from the TIFF library into rasters filled with packed - * ABGR pixels (i.e. suitable for passing to lrecwrite.) - * - * The routines have been created according to the most - * important cases and optimized. PickContigCase and - * PickSeparateCase analyze the parameters and select - * the appropriate "get" and "put" routine to use. - */ -#define REPEAT8(op) REPEAT4(op); REPEAT4(op) -#define REPEAT4(op) REPEAT2(op); REPEAT2(op) -#define REPEAT2(op) op; op -#define CASE8(x,op) \ - switch (x) { \ - case 7: op; case 6: op; case 5: op; \ - case 4: op; case 3: op; case 2: op; \ - case 1: op; \ - } -#define CASE4(x,op) switch (x) { case 3: op; case 2: op; case 1: op; } -#define NOP - -#define UNROLL8(w, op1, op2) { \ - uint32 _x; \ - for (_x = w; _x >= 8; _x -= 8) { \ - op1; \ - REPEAT8(op2); \ - } \ - if (_x > 0) { \ - op1; \ - CASE8(_x,op2); \ - } \ -} -#define UNROLL4(w, op1, op2) { \ - uint32 _x; \ - for (_x = w; _x >= 4; _x -= 4) { \ - op1; \ - REPEAT4(op2); \ - } \ - if (_x > 0) { \ - op1; \ - CASE4(_x,op2); \ - } \ -} -#define UNROLL2(w, op1, op2) { \ - uint32 _x; \ - for (_x = w; _x >= 2; _x -= 2) { \ - op1; \ - REPEAT2(op2); \ - } \ - if (_x) { \ - op1; \ - op2; \ - } \ -} - -#define SKEW(r,g,b,skew) { r += skew; g += skew; b += skew; } -#define SKEW4(r,g,b,a,skew) { r += skew; g += skew; b += skew; a+= skew; } - -#define A1 (((uint32)0xffL)<<24) -#define PACK(r,g,b) \ - ((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|A1) -#define PACK4(r,g,b,a) \ - ((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|((uint32)(a)<<24)) -#define W2B(v) (((v)>>8)&0xff) -/* TODO: PACKW should have be made redundant in favor of Bitdepth16To8 LUT */ -#define PACKW(r,g,b) \ - ((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|A1) -#define PACKW4(r,g,b,a) \ - ((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|((uint32)W2B(a)<<24)) - -#define DECLAREContigPutFunc(name) \ -static void name(\ - TIFFRGBAImage* img, \ - uint32* cp, \ - uint32 x, uint32 y, \ - uint32 w, uint32 h, \ - int32 fromskew, int32 toskew, \ - unsigned char* pp \ -) - -/* - * 8-bit palette => colormap/RGB - */ -DECLAREContigPutFunc(put8bitcmaptile) -{ - uint32** PALmap = img->PALmap; - int samplesperpixel = img->samplesperpixel; - - (void) y; - while (h-- > 0) { - for (x = w; x-- > 0;) - { - *cp++ = PALmap[*pp][0]; - pp += samplesperpixel; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * 4-bit palette => colormap/RGB - */ -DECLAREContigPutFunc(put4bitcmaptile) -{ - uint32** PALmap = img->PALmap; - - (void) x; (void) y; - fromskew /= 2; - while (h-- > 0) { - uint32* bw; - UNROLL2(w, bw = PALmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 2-bit palette => colormap/RGB - */ -DECLAREContigPutFunc(put2bitcmaptile) -{ - uint32** PALmap = img->PALmap; - - (void) x; (void) y; - fromskew /= 4; - while (h-- > 0) { - uint32* bw; - UNROLL4(w, bw = PALmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 1-bit palette => colormap/RGB - */ -DECLAREContigPutFunc(put1bitcmaptile) -{ - uint32** PALmap = img->PALmap; - - (void) x; (void) y; - fromskew /= 8; - while (h-- > 0) { - uint32* bw; - UNROLL8(w, bw = PALmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit greyscale => colormap/RGB - */ -DECLAREContigPutFunc(putgreytile) -{ - int samplesperpixel = img->samplesperpixel; - uint32** BWmap = img->BWmap; - - (void) y; - while (h-- > 0) { - for (x = w; x-- > 0;) - { - *cp++ = BWmap[*pp][0]; - pp += samplesperpixel; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit greyscale with associated alpha => colormap/RGBA - */ -DECLAREContigPutFunc(putagreytile) -{ - int samplesperpixel = img->samplesperpixel; - uint32** BWmap = img->BWmap; - - (void) y; - while (h-- > 0) { - for (x = w; x-- > 0;) - { - *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1); - pp += samplesperpixel; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * 16-bit greyscale => colormap/RGB - */ -DECLAREContigPutFunc(put16bitbwtile) -{ - int samplesperpixel = img->samplesperpixel; - uint32** BWmap = img->BWmap; - - (void) y; - while (h-- > 0) { - uint16 *wp = (uint16 *) pp; - - for (x = w; x-- > 0;) - { - /* use high order byte of 16bit value */ - - *cp++ = BWmap[*wp >> 8][0]; - pp += 2 * samplesperpixel; - wp += samplesperpixel; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * 1-bit bilevel => colormap/RGB - */ -DECLAREContigPutFunc(put1bitbwtile) -{ - uint32** BWmap = img->BWmap; - - (void) x; (void) y; - fromskew /= 8; - while (h-- > 0) { - uint32* bw; - UNROLL8(w, bw = BWmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 2-bit greyscale => colormap/RGB - */ -DECLAREContigPutFunc(put2bitbwtile) -{ - uint32** BWmap = img->BWmap; - - (void) x; (void) y; - fromskew /= 4; - while (h-- > 0) { - uint32* bw; - UNROLL4(w, bw = BWmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 4-bit greyscale => colormap/RGB - */ -DECLAREContigPutFunc(put4bitbwtile) -{ - uint32** BWmap = img->BWmap; - - (void) x; (void) y; - fromskew /= 2; - while (h-- > 0) { - uint32* bw; - UNROLL2(w, bw = BWmap[*pp++], *cp++ = *bw++); - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit packed samples, no Map => RGB - */ -DECLAREContigPutFunc(putRGBcontig8bittile) -{ - int samplesperpixel = img->samplesperpixel; - - (void) x; (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - UNROLL8(w, NOP, - *cp++ = PACK(pp[0], pp[1], pp[2]); - pp += samplesperpixel); - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit packed samples => RGBA w/ associated alpha - * (known to have Map == NULL) - */ -DECLAREContigPutFunc(putRGBAAcontig8bittile) -{ - int samplesperpixel = img->samplesperpixel; - - (void) x; (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - UNROLL8(w, NOP, - *cp++ = PACK4(pp[0], pp[1], pp[2], pp[3]); - pp += samplesperpixel); - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit packed samples => RGBA w/ unassociated alpha - * (known to have Map == NULL) - */ -DECLAREContigPutFunc(putRGBUAcontig8bittile) -{ - int samplesperpixel = img->samplesperpixel; - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - uint32 r, g, b, a; - uint8* m; - for (x = w; x-- > 0;) { - a = pp[3]; - m = img->UaToAa+(a<<8); - r = m[pp[0]]; - g = m[pp[1]]; - b = m[pp[2]]; - *cp++ = PACK4(r,g,b,a); - pp += samplesperpixel; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * 16-bit packed samples => RGB - */ -DECLAREContigPutFunc(putRGBcontig16bittile) -{ - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - *cp++ = PACK(img->Bitdepth16To8[wp[0]], - img->Bitdepth16To8[wp[1]], - img->Bitdepth16To8[wp[2]]); - wp += samplesperpixel; - } - cp += toskew; - wp += fromskew; - } -} - -/* - * 16-bit packed samples => RGBA w/ associated alpha - * (known to have Map == NULL) - */ -DECLAREContigPutFunc(putRGBAAcontig16bittile) -{ - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - *cp++ = PACK4(img->Bitdepth16To8[wp[0]], - img->Bitdepth16To8[wp[1]], - img->Bitdepth16To8[wp[2]], - img->Bitdepth16To8[wp[3]]); - wp += samplesperpixel; - } - cp += toskew; - wp += fromskew; - } -} - -/* - * 16-bit packed samples => RGBA w/ unassociated alpha - * (known to have Map == NULL) - */ -DECLAREContigPutFunc(putRGBUAcontig16bittile) -{ - int samplesperpixel = img->samplesperpixel; - uint16 *wp = (uint16 *)pp; - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - uint32 r,g,b,a; - uint8* m; - for (x = w; x-- > 0;) { - a = img->Bitdepth16To8[wp[3]]; - m = img->UaToAa+(a<<8); - r = m[img->Bitdepth16To8[wp[0]]]; - g = m[img->Bitdepth16To8[wp[1]]]; - b = m[img->Bitdepth16To8[wp[2]]]; - *cp++ = PACK4(r,g,b,a); - wp += samplesperpixel; - } - cp += toskew; - wp += fromskew; - } -} - -/* - * 8-bit packed CMYK samples w/o Map => RGB - * - * NB: The conversion of CMYK->RGB is *very* crude. - */ -DECLAREContigPutFunc(putRGBcontig8bitCMYKtile) -{ - int samplesperpixel = img->samplesperpixel; - uint16 r, g, b, k; - - (void) x; (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - UNROLL8(w, NOP, - k = 255 - pp[3]; - r = (k*(255-pp[0]))/255; - g = (k*(255-pp[1]))/255; - b = (k*(255-pp[2]))/255; - *cp++ = PACK(r, g, b); - pp += samplesperpixel); - cp += toskew; - pp += fromskew; - } -} - -/* - * 8-bit packed CMYK samples w/Map => RGB - * - * NB: The conversion of CMYK->RGB is *very* crude. - */ -DECLAREContigPutFunc(putRGBcontig8bitCMYKMaptile) -{ - int samplesperpixel = img->samplesperpixel; - TIFFRGBValue* Map = img->Map; - uint16 r, g, b, k; - - (void) y; - fromskew *= samplesperpixel; - while (h-- > 0) { - for (x = w; x-- > 0;) { - k = 255 - pp[3]; - r = (k*(255-pp[0]))/255; - g = (k*(255-pp[1]))/255; - b = (k*(255-pp[2]))/255; - *cp++ = PACK(Map[r], Map[g], Map[b]); - pp += samplesperpixel; - } - pp += fromskew; - cp += toskew; - } -} - -#define DECLARESepPutFunc(name) \ -static void name(\ - TIFFRGBAImage* img,\ - uint32* cp,\ - uint32 x, uint32 y, \ - uint32 w, uint32 h,\ - int32 fromskew, int32 toskew,\ - unsigned char* r, unsigned char* g, unsigned char* b, unsigned char* a\ -) - -/* - * 8-bit unpacked samples => RGB - */ -DECLARESepPutFunc(putRGBseparate8bittile) -{ - (void) img; (void) x; (void) y; (void) a; - while (h-- > 0) { - UNROLL8(w, NOP, *cp++ = PACK(*r++, *g++, *b++)); - SKEW(r, g, b, fromskew); - cp += toskew; - } -} - -/* - * 8-bit unpacked samples => RGBA w/ associated alpha - */ -DECLARESepPutFunc(putRGBAAseparate8bittile) -{ - (void) img; (void) x; (void) y; - while (h-- > 0) { - UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++)); - SKEW4(r, g, b, a, fromskew); - cp += toskew; - } -} - -/* - * 8-bit unpacked CMYK samples => RGBA - */ -DECLARESepPutFunc(putCMYKseparate8bittile) -{ - (void) img; (void) y; - while (h-- > 0) { - uint32 rv, gv, bv, kv; - for (x = w; x-- > 0;) { - kv = 255 - *a++; - rv = (kv*(255-*r++))/255; - gv = (kv*(255-*g++))/255; - bv = (kv*(255-*b++))/255; - *cp++ = PACK4(rv,gv,bv,255); - } - SKEW4(r, g, b, a, fromskew); - cp += toskew; - } -} - -/* - * 8-bit unpacked samples => RGBA w/ unassociated alpha - */ -DECLARESepPutFunc(putRGBUAseparate8bittile) -{ - (void) img; (void) y; - while (h-- > 0) { - uint32 rv, gv, bv, av; - uint8* m; - for (x = w; x-- > 0;) { - av = *a++; - m = img->UaToAa+(av<<8); - rv = m[*r++]; - gv = m[*g++]; - bv = m[*b++]; - *cp++ = PACK4(rv,gv,bv,av); - } - SKEW4(r, g, b, a, fromskew); - cp += toskew; - } -} - -/* - * 16-bit unpacked samples => RGB - */ -DECLARESepPutFunc(putRGBseparate16bittile) -{ - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - (void) img; (void) y; (void) a; - while (h-- > 0) { - for (x = 0; x < w; x++) - *cp++ = PACK(img->Bitdepth16To8[*wr++], - img->Bitdepth16To8[*wg++], - img->Bitdepth16To8[*wb++]); - SKEW(wr, wg, wb, fromskew); - cp += toskew; - } -} - -/* - * 16-bit unpacked samples => RGBA w/ associated alpha - */ -DECLARESepPutFunc(putRGBAAseparate16bittile) -{ - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - uint16 *wa = (uint16*) a; - (void) img; (void) y; - while (h-- > 0) { - for (x = 0; x < w; x++) - *cp++ = PACK4(img->Bitdepth16To8[*wr++], - img->Bitdepth16To8[*wg++], - img->Bitdepth16To8[*wb++], - img->Bitdepth16To8[*wa++]); - SKEW4(wr, wg, wb, wa, fromskew); - cp += toskew; - } -} - -/* - * 16-bit unpacked samples => RGBA w/ unassociated alpha - */ -DECLARESepPutFunc(putRGBUAseparate16bittile) -{ - uint16 *wr = (uint16*) r; - uint16 *wg = (uint16*) g; - uint16 *wb = (uint16*) b; - uint16 *wa = (uint16*) a; - (void) img; (void) y; - while (h-- > 0) { - uint32 r,g,b,a; - uint8* m; - for (x = w; x-- > 0;) { - a = img->Bitdepth16To8[*wa++]; - m = img->UaToAa+(a<<8); - r = m[img->Bitdepth16To8[*wr++]]; - g = m[img->Bitdepth16To8[*wg++]]; - b = m[img->Bitdepth16To8[*wb++]]; - *cp++ = PACK4(r,g,b,a); - } - SKEW4(wr, wg, wb, wa, fromskew); - cp += toskew; - } -} - -/* - * 8-bit packed CIE L*a*b 1976 samples => RGB - */ -DECLAREContigPutFunc(putcontig8bitCIELab) -{ - float X, Y, Z; - uint32 r, g, b; - (void) y; - fromskew *= 3; - while (h-- > 0) { - for (x = w; x-- > 0;) { - TIFFCIELabToXYZ(img->cielab, - (unsigned char)pp[0], - (signed char)pp[1], - (signed char)pp[2], - &X, &Y, &Z); - TIFFXYZToRGB(img->cielab, X, Y, Z, &r, &g, &b); - *cp++ = PACK(r, g, b); - pp += 3; - } - cp += toskew; - pp += fromskew; - } -} - -/* - * YCbCr -> RGB conversion and packing routines. - */ - -#define YCbCrtoRGB(dst, Y) { \ - uint32 r, g, b; \ - TIFFYCbCrtoRGB(img->ycbcr, (Y), Cb, Cr, &r, &g, &b); \ - dst = PACK(r, g, b); \ -} - -/* - * 8-bit packed YCbCr samples => RGB - * This function is generic for different sampling sizes, - * and can handle blocks sizes that aren't multiples of the - * sampling size. However, it is substantially less optimized - * than the specific sampling cases. It is used as a fallback - * for difficult blocks. - */ -#ifdef notdef -static void putcontig8bitYCbCrGenericTile( - TIFFRGBAImage* img, - uint32* cp, - uint32 x, uint32 y, - uint32 w, uint32 h, - int32 fromskew, int32 toskew, - unsigned char* pp, - int h_group, - int v_group ) - -{ - uint32* cp1 = cp+w+toskew; - uint32* cp2 = cp1+w+toskew; - uint32* cp3 = cp2+w+toskew; - int32 incr = 3*w+4*toskew; - int32 Cb, Cr; - int group_size = v_group * h_group + 2; - - (void) y; - fromskew = (fromskew * group_size) / h_group; - - for( yy = 0; yy < h; yy++ ) - { - unsigned char *pp_line; - int y_line_group = yy / v_group; - int y_remainder = yy - y_line_group * v_group; - - pp_line = pp + v_line_group * - - - for( xx = 0; xx < w; xx++ ) - { - Cb = pp - } - } - for (; h >= 4; h -= 4) { - x = w>>2; - do { - Cb = pp[16]; - Cr = pp[17]; - - YCbCrtoRGB(cp [0], pp[ 0]); - YCbCrtoRGB(cp [1], pp[ 1]); - YCbCrtoRGB(cp [2], pp[ 2]); - YCbCrtoRGB(cp [3], pp[ 3]); - YCbCrtoRGB(cp1[0], pp[ 4]); - YCbCrtoRGB(cp1[1], pp[ 5]); - YCbCrtoRGB(cp1[2], pp[ 6]); - YCbCrtoRGB(cp1[3], pp[ 7]); - YCbCrtoRGB(cp2[0], pp[ 8]); - YCbCrtoRGB(cp2[1], pp[ 9]); - YCbCrtoRGB(cp2[2], pp[10]); - YCbCrtoRGB(cp2[3], pp[11]); - YCbCrtoRGB(cp3[0], pp[12]); - YCbCrtoRGB(cp3[1], pp[13]); - YCbCrtoRGB(cp3[2], pp[14]); - YCbCrtoRGB(cp3[3], pp[15]); - - cp += 4, cp1 += 4, cp2 += 4, cp3 += 4; - pp += 18; - } while (--x); - cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; - pp += fromskew; - } -} -#endif - -/* - * 8-bit packed YCbCr samples w/ 4,4 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr44tile) -{ - uint32* cp1 = cp+w+toskew; - uint32* cp2 = cp1+w+toskew; - uint32* cp3 = cp2+w+toskew; - int32 incr = 3*w+4*toskew; - - (void) y; - /* adjust fromskew */ - fromskew = (fromskew * 18) / 4; - if ((h & 3) == 0 && (w & 3) == 0) { - for (; h >= 4; h -= 4) { - x = w>>2; - do { - int32 Cb = pp[16]; - int32 Cr = pp[17]; - - YCbCrtoRGB(cp [0], pp[ 0]); - YCbCrtoRGB(cp [1], pp[ 1]); - YCbCrtoRGB(cp [2], pp[ 2]); - YCbCrtoRGB(cp [3], pp[ 3]); - YCbCrtoRGB(cp1[0], pp[ 4]); - YCbCrtoRGB(cp1[1], pp[ 5]); - YCbCrtoRGB(cp1[2], pp[ 6]); - YCbCrtoRGB(cp1[3], pp[ 7]); - YCbCrtoRGB(cp2[0], pp[ 8]); - YCbCrtoRGB(cp2[1], pp[ 9]); - YCbCrtoRGB(cp2[2], pp[10]); - YCbCrtoRGB(cp2[3], pp[11]); - YCbCrtoRGB(cp3[0], pp[12]); - YCbCrtoRGB(cp3[1], pp[13]); - YCbCrtoRGB(cp3[2], pp[14]); - YCbCrtoRGB(cp3[3], pp[15]); - - cp += 4, cp1 += 4, cp2 += 4, cp3 += 4; - pp += 18; - } while (--x); - cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; - pp += fromskew; - } - } else { - while (h > 0) { - for (x = w; x > 0;) { - int32 Cb = pp[16]; - int32 Cr = pp[17]; - switch (x) { - default: - switch (h) { - default: YCbCrtoRGB(cp3[3], pp[15]); /* FALLTHROUGH */ - case 3: YCbCrtoRGB(cp2[3], pp[11]); /* FALLTHROUGH */ - case 2: YCbCrtoRGB(cp1[3], pp[ 7]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [3], pp[ 3]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 3: - switch (h) { - default: YCbCrtoRGB(cp3[2], pp[14]); /* FALLTHROUGH */ - case 3: YCbCrtoRGB(cp2[2], pp[10]); /* FALLTHROUGH */ - case 2: YCbCrtoRGB(cp1[2], pp[ 6]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [2], pp[ 2]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 2: - switch (h) { - default: YCbCrtoRGB(cp3[1], pp[13]); /* FALLTHROUGH */ - case 3: YCbCrtoRGB(cp2[1], pp[ 9]); /* FALLTHROUGH */ - case 2: YCbCrtoRGB(cp1[1], pp[ 5]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 1: - switch (h) { - default: YCbCrtoRGB(cp3[0], pp[12]); /* FALLTHROUGH */ - case 3: YCbCrtoRGB(cp2[0], pp[ 8]); /* FALLTHROUGH */ - case 2: YCbCrtoRGB(cp1[0], pp[ 4]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - } - if (x < 4) { - cp += x; cp1 += x; cp2 += x; cp3 += x; - x = 0; - } - else { - cp += 4; cp1 += 4; cp2 += 4; cp3 += 4; - x -= 4; - } - pp += 18; - } - if (h <= 4) - break; - h -= 4; - cp += incr, cp1 += incr, cp2 += incr, cp3 += incr; - pp += fromskew; - } - } -} - -/* - * 8-bit packed YCbCr samples w/ 4,2 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr42tile) -{ - uint32* cp1 = cp+w+toskew; - int32 incr = 2*toskew+w; - - (void) y; - fromskew = (fromskew * 10) / 4; - if ((w & 3) == 0 && (h & 1) == 0) { - for (; h >= 2; h -= 2) { - x = w>>2; - do { - int32 Cb = pp[8]; - int32 Cr = pp[9]; - - YCbCrtoRGB(cp [0], pp[0]); - YCbCrtoRGB(cp [1], pp[1]); - YCbCrtoRGB(cp [2], pp[2]); - YCbCrtoRGB(cp [3], pp[3]); - YCbCrtoRGB(cp1[0], pp[4]); - YCbCrtoRGB(cp1[1], pp[5]); - YCbCrtoRGB(cp1[2], pp[6]); - YCbCrtoRGB(cp1[3], pp[7]); - - cp += 4, cp1 += 4; - pp += 10; - } while (--x); - cp += incr, cp1 += incr; - pp += fromskew; - } - } else { - while (h > 0) { - for (x = w; x > 0;) { - int32 Cb = pp[8]; - int32 Cr = pp[9]; - switch (x) { - default: - switch (h) { - default: YCbCrtoRGB(cp1[3], pp[ 7]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [3], pp[ 3]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 3: - switch (h) { - default: YCbCrtoRGB(cp1[2], pp[ 6]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [2], pp[ 2]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 2: - switch (h) { - default: YCbCrtoRGB(cp1[1], pp[ 5]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - case 1: - switch (h) { - default: YCbCrtoRGB(cp1[0], pp[ 4]); /* FALLTHROUGH */ - case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */ - } /* FALLTHROUGH */ - } - if (x < 4) { - cp += x; cp1 += x; - x = 0; - } - else { - cp += 4; cp1 += 4; - x -= 4; - } - pp += 10; - } - if (h <= 2) - break; - h -= 2; - cp += incr, cp1 += incr; - pp += fromskew; - } - } -} - -/* - * 8-bit packed YCbCr samples w/ 4,1 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr41tile) -{ - (void) y; - /* XXX adjust fromskew */ - do { - x = w>>2; - while(x>0) { - int32 Cb = pp[4]; - int32 Cr = pp[5]; - - YCbCrtoRGB(cp [0], pp[0]); - YCbCrtoRGB(cp [1], pp[1]); - YCbCrtoRGB(cp [2], pp[2]); - YCbCrtoRGB(cp [3], pp[3]); - - cp += 4; - pp += 6; - x--; - } - - if( (w&3) != 0 ) - { - int32 Cb = pp[4]; - int32 Cr = pp[5]; - - switch( (w&3) ) { - case 3: YCbCrtoRGB(cp [2], pp[2]); - case 2: YCbCrtoRGB(cp [1], pp[1]); - case 1: YCbCrtoRGB(cp [0], pp[0]); - case 0: break; - } - - cp += (w&3); - pp += 6; - } - - cp += toskew; - pp += fromskew; - } while (--h); - -} - -/* - * 8-bit packed YCbCr samples w/ 2,2 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr22tile) -{ - uint32* cp2; - int32 incr = 2*toskew+w; - (void) y; - fromskew = (fromskew / 2) * 6; - cp2 = cp+w+toskew; - while (h>=2) { - x = w; - while (x>=2) { - uint32 Cb = pp[4]; - uint32 Cr = pp[5]; - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp[1], pp[1]); - YCbCrtoRGB(cp2[0], pp[2]); - YCbCrtoRGB(cp2[1], pp[3]); - cp += 2; - cp2 += 2; - pp += 6; - x -= 2; - } - if (x==1) { - uint32 Cb = pp[4]; - uint32 Cr = pp[5]; - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp2[0], pp[2]); - cp ++ ; - cp2 ++ ; - pp += 6; - } - cp += incr; - cp2 += incr; - pp += fromskew; - h-=2; - } - if (h==1) { - x = w; - while (x>=2) { - uint32 Cb = pp[4]; - uint32 Cr = pp[5]; - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp[1], pp[1]); - cp += 2; - cp2 += 2; - pp += 6; - x -= 2; - } - if (x==1) { - uint32 Cb = pp[4]; - uint32 Cr = pp[5]; - YCbCrtoRGB(cp[0], pp[0]); - } - } -} - -/* - * 8-bit packed YCbCr samples w/ 2,1 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr21tile) -{ - (void) y; - fromskew = (fromskew * 4) / 2; - do { - x = w>>1; - while(x>0) { - int32 Cb = pp[2]; - int32 Cr = pp[3]; - - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp[1], pp[1]); - - cp += 2; - pp += 4; - x --; - } - - if( (w&1) != 0 ) - { - int32 Cb = pp[2]; - int32 Cr = pp[3]; - - YCbCrtoRGB(cp[0], pp[0]); - - cp += 1; - pp += 4; - } - - cp += toskew; - pp += fromskew; - } while (--h); -} - -/* - * 8-bit packed YCbCr samples w/ 1,2 subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr12tile) -{ - uint32* cp2; - int32 incr = 2*toskew+w; - (void) y; - fromskew = (fromskew / 2) * 4; - cp2 = cp+w+toskew; - while (h>=2) { - x = w; - do { - uint32 Cb = pp[2]; - uint32 Cr = pp[3]; - YCbCrtoRGB(cp[0], pp[0]); - YCbCrtoRGB(cp2[0], pp[1]); - cp ++; - cp2 ++; - pp += 4; - } while (--x); - cp += incr; - cp2 += incr; - pp += fromskew; - h-=2; - } - if (h==1) { - x = w; - do { - uint32 Cb = pp[2]; - uint32 Cr = pp[3]; - YCbCrtoRGB(cp[0], pp[0]); - cp ++; - pp += 4; - } while (--x); - } -} - -/* - * 8-bit packed YCbCr samples w/ no subsampling => RGB - */ -DECLAREContigPutFunc(putcontig8bitYCbCr11tile) -{ - (void) y; - fromskew *= 3; - do { - x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */ - do { - int32 Cb = pp[1]; - int32 Cr = pp[2]; - - YCbCrtoRGB(*cp++, pp[0]); - - pp += 3; - } while (--x); - cp += toskew; - pp += fromskew; - } while (--h); -} - -/* - * 8-bit packed YCbCr samples w/ no subsampling => RGB - */ -DECLARESepPutFunc(putseparate8bitYCbCr11tile) -{ - (void) y; - (void) a; - /* TODO: naming of input vars is still off, change obfuscating declaration inside define, or resolve obfuscation */ - while (h-- > 0) { - x = w; - do { - uint32 dr, dg, db; - TIFFYCbCrtoRGB(img->ycbcr,*r++,*g++,*b++,&dr,&dg,&db); - *cp++ = PACK(dr,dg,db); - } while (--x); - SKEW(r, g, b, fromskew); - cp += toskew; - } -} -#undef YCbCrtoRGB - -static int -initYCbCrConversion(TIFFRGBAImage* img) -{ - static const char module[] = "initYCbCrConversion"; - - float *luma, *refBlackWhite; - - if (img->ycbcr == NULL) { - img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc( - TIFFroundup_32(sizeof (TIFFYCbCrToRGB), sizeof (long)) - + 4*256*sizeof (TIFFRGBValue) - + 2*256*sizeof (int) - + 3*256*sizeof (int32) - ); - if (img->ycbcr == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, module, - "No space for YCbCr->RGB conversion state"); - return (0); - } - } - - TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRCOEFFICIENTS, &luma); - TIFFGetFieldDefaulted(img->tif, TIFFTAG_REFERENCEBLACKWHITE, - &refBlackWhite); - if (TIFFYCbCrToRGBInit(img->ycbcr, luma, refBlackWhite) < 0) - return(0); - return (1); -} - -static tileContigRoutine -initCIELabConversion(TIFFRGBAImage* img) -{ - static const char module[] = "initCIELabConversion"; - - float *whitePoint; - float refWhite[3]; - - if (!img->cielab) { - img->cielab = (TIFFCIELabToRGB *) - _TIFFmalloc(sizeof(TIFFCIELabToRGB)); - if (!img->cielab) { - TIFFErrorExt(img->tif->tif_clientdata, module, - "No space for CIE L*a*b*->RGB conversion state."); - return NULL; - } - } - - TIFFGetFieldDefaulted(img->tif, TIFFTAG_WHITEPOINT, &whitePoint); - refWhite[1] = 100.0F; - refWhite[0] = whitePoint[0] / whitePoint[1] * refWhite[1]; - refWhite[2] = (1.0F - whitePoint[0] - whitePoint[1]) - / whitePoint[1] * refWhite[1]; - if (TIFFCIELabToRGBInit(img->cielab, &display_sRGB, refWhite) < 0) { - TIFFErrorExt(img->tif->tif_clientdata, module, - "Failed to initialize CIE L*a*b*->RGB conversion state."); - _TIFFfree(img->cielab); - return NULL; - } - - return putcontig8bitCIELab; -} - -/* - * Greyscale images with less than 8 bits/sample are handled - * with a table to avoid lots of shifts and masks. The table - * is setup so that put*bwtile (below) can retrieve 8/bitspersample - * pixel values simply by indexing into the table with one - * number. - */ -static int -makebwmap(TIFFRGBAImage* img) -{ - TIFFRGBValue* Map = img->Map; - int bitspersample = img->bitspersample; - int nsamples = 8 / bitspersample; - int i; - uint32* p; - - if( nsamples == 0 ) - nsamples = 1; - - img->BWmap = (uint32**) _TIFFmalloc( - 256*sizeof (uint32 *)+(256*nsamples*sizeof(uint32))); - if (img->BWmap == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No space for B&W mapping table"); - return (0); - } - p = (uint32*)(img->BWmap + 256); - for (i = 0; i < 256; i++) { - TIFFRGBValue c; - img->BWmap[i] = p; - switch (bitspersample) { -#define GREY(x) c = Map[x]; *p++ = PACK(c,c,c); - case 1: - GREY(i>>7); - GREY((i>>6)&1); - GREY((i>>5)&1); - GREY((i>>4)&1); - GREY((i>>3)&1); - GREY((i>>2)&1); - GREY((i>>1)&1); - GREY(i&1); - break; - case 2: - GREY(i>>6); - GREY((i>>4)&3); - GREY((i>>2)&3); - GREY(i&3); - break; - case 4: - GREY(i>>4); - GREY(i&0xf); - break; - case 8: - case 16: - GREY(i); - break; - } -#undef GREY - } - return (1); -} - -/* - * Construct a mapping table to convert from the range - * of the data samples to [0,255] --for display. This - * process also handles inverting B&W images when needed. - */ -static int -setupMap(TIFFRGBAImage* img) -{ - int32 x, range; - - range = (int32)((1L<bitspersample)-1); - - /* treat 16 bit the same as eight bit */ - if( img->bitspersample == 16 ) - range = (int32) 255; - - img->Map = (TIFFRGBValue*) _TIFFmalloc((range+1) * sizeof (TIFFRGBValue)); - if (img->Map == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), - "No space for photometric conversion table"); - return (0); - } - if (img->photometric == PHOTOMETRIC_MINISWHITE) { - for (x = 0; x <= range; x++) - img->Map[x] = (TIFFRGBValue) (((range - x) * 255) / range); - } else { - for (x = 0; x <= range; x++) - img->Map[x] = (TIFFRGBValue) ((x * 255) / range); - } - if (img->bitspersample <= 16 && - (img->photometric == PHOTOMETRIC_MINISBLACK || - img->photometric == PHOTOMETRIC_MINISWHITE)) { - /* - * Use photometric mapping table to construct - * unpacking tables for samples <= 8 bits. - */ - if (!makebwmap(img)) - return (0); - /* no longer need Map, free it */ - _TIFFfree(img->Map), img->Map = NULL; - } - return (1); -} - -static int -checkcmap(TIFFRGBAImage* img) -{ - uint16* r = img->redcmap; - uint16* g = img->greencmap; - uint16* b = img->bluecmap; - long n = 1L<bitspersample; - - while (n-- > 0) - if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) - return (16); - return (8); -} - -static void -cvtcmap(TIFFRGBAImage* img) -{ - uint16* r = img->redcmap; - uint16* g = img->greencmap; - uint16* b = img->bluecmap; - long i; - - for (i = (1L<bitspersample)-1; i >= 0; i--) { -#define CVT(x) ((uint16)((x)>>8)) - r[i] = CVT(r[i]); - g[i] = CVT(g[i]); - b[i] = CVT(b[i]); -#undef CVT - } -} - -/* - * Palette images with <= 8 bits/sample are handled - * with a table to avoid lots of shifts and masks. The table - * is setup so that put*cmaptile (below) can retrieve 8/bitspersample - * pixel values simply by indexing into the table with one - * number. - */ -static int -makecmap(TIFFRGBAImage* img) -{ - int bitspersample = img->bitspersample; - int nsamples = 8 / bitspersample; - uint16* r = img->redcmap; - uint16* g = img->greencmap; - uint16* b = img->bluecmap; - uint32 *p; - int i; - - img->PALmap = (uint32**) _TIFFmalloc( - 256*sizeof (uint32 *)+(256*nsamples*sizeof(uint32))); - if (img->PALmap == NULL) { - TIFFErrorExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "No space for Palette mapping table"); - return (0); - } - p = (uint32*)(img->PALmap + 256); - for (i = 0; i < 256; i++) { - TIFFRGBValue c; - img->PALmap[i] = p; -#define CMAP(x) c = (TIFFRGBValue) x; *p++ = PACK(r[c]&0xff, g[c]&0xff, b[c]&0xff); - switch (bitspersample) { - case 1: - CMAP(i>>7); - CMAP((i>>6)&1); - CMAP((i>>5)&1); - CMAP((i>>4)&1); - CMAP((i>>3)&1); - CMAP((i>>2)&1); - CMAP((i>>1)&1); - CMAP(i&1); - break; - case 2: - CMAP(i>>6); - CMAP((i>>4)&3); - CMAP((i>>2)&3); - CMAP(i&3); - break; - case 4: - CMAP(i>>4); - CMAP(i&0xf); - break; - case 8: - CMAP(i); - break; - } -#undef CMAP - } - return (1); -} - -/* - * Construct any mapping table used - * by the associated put routine. - */ -static int -buildMap(TIFFRGBAImage* img) -{ - switch (img->photometric) { - case PHOTOMETRIC_RGB: - case PHOTOMETRIC_YCBCR: - case PHOTOMETRIC_SEPARATED: - if (img->bitspersample == 8) - break; - /* fall thru... */ - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_MINISWHITE: - if (!setupMap(img)) - return (0); - break; - case PHOTOMETRIC_PALETTE: - /* - * Convert 16-bit colormap to 8-bit (unless it looks - * like an old-style 8-bit colormap). - */ - if (checkcmap(img) == 16) - cvtcmap(img); - else - TIFFWarningExt(img->tif->tif_clientdata, TIFFFileName(img->tif), "Assuming 8-bit colormap"); - /* - * Use mapping table and colormap to construct - * unpacking tables for samples < 8 bits. - */ - if (img->bitspersample <= 8 && !makecmap(img)) - return (0); - break; - } - return (1); -} - -/* - * Select the appropriate conversion routine for packed data. - */ -static int -PickContigCase(TIFFRGBAImage* img) -{ - img->get = TIFFIsTiled(img->tif) ? gtTileContig : gtStripContig; - img->put.contig = NULL; - switch (img->photometric) { - case PHOTOMETRIC_RGB: - switch (img->bitspersample) { - case 8: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - img->put.contig = putRGBAAcontig8bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - if (BuildMapUaToAa(img)) - img->put.contig = putRGBUAcontig8bittile; - } - else - img->put.contig = putRGBcontig8bittile; - break; - case 16: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - { - if (BuildMapBitdepth16To8(img)) - img->put.contig = putRGBAAcontig16bittile; - } - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - if (BuildMapBitdepth16To8(img) && - BuildMapUaToAa(img)) - img->put.contig = putRGBUAcontig16bittile; - } - else - { - if (BuildMapBitdepth16To8(img)) - img->put.contig = putRGBcontig16bittile; - } - break; - } - break; - case PHOTOMETRIC_SEPARATED: - if (buildMap(img)) { - if (img->bitspersample == 8) { - if (!img->Map) - img->put.contig = putRGBcontig8bitCMYKtile; - else - img->put.contig = putRGBcontig8bitCMYKMaptile; - } - } - break; - case PHOTOMETRIC_PALETTE: - if (buildMap(img)) { - switch (img->bitspersample) { - case 8: - img->put.contig = put8bitcmaptile; - break; - case 4: - img->put.contig = put4bitcmaptile; - break; - case 2: - img->put.contig = put2bitcmaptile; - break; - case 1: - img->put.contig = put1bitcmaptile; - break; - } - } - break; - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - if (buildMap(img)) { - switch (img->bitspersample) { - case 16: - img->put.contig = put16bitbwtile; - break; - case 8: - if (img->alpha && img->samplesperpixel == 2) - img->put.contig = putagreytile; - else - img->put.contig = putgreytile; - break; - case 4: - img->put.contig = put4bitbwtile; - break; - case 2: - img->put.contig = put2bitbwtile; - break; - case 1: - img->put.contig = put1bitbwtile; - break; - } - } - break; - case PHOTOMETRIC_YCBCR: - if ((img->bitspersample==8) && (img->samplesperpixel==3)) - { - if (initYCbCrConversion(img)!=0) - { - /* - * The 6.0 spec says that subsampling must be - * one of 1, 2, or 4, and that vertical subsampling - * must always be <= horizontal subsampling; so - * there are only a few possibilities and we just - * enumerate the cases. - * Joris: added support for the [1,2] case, nonetheless, to accommodate - * some OJPEG files - */ - uint16 SubsamplingHor; - uint16 SubsamplingVer; - TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &SubsamplingHor, &SubsamplingVer); - switch ((SubsamplingHor<<4)|SubsamplingVer) { - case 0x44: - img->put.contig = putcontig8bitYCbCr44tile; - break; - case 0x42: - img->put.contig = putcontig8bitYCbCr42tile; - break; - case 0x41: - img->put.contig = putcontig8bitYCbCr41tile; - break; - case 0x22: - img->put.contig = putcontig8bitYCbCr22tile; - break; - case 0x21: - img->put.contig = putcontig8bitYCbCr21tile; - break; - case 0x12: - img->put.contig = putcontig8bitYCbCr12tile; - break; - case 0x11: - img->put.contig = putcontig8bitYCbCr11tile; - break; - } - } - } - break; - case PHOTOMETRIC_CIELAB: - if (buildMap(img)) { - if (img->bitspersample == 8) - img->put.contig = initCIELabConversion(img); - break; - } - } - return ((img->get!=NULL) && (img->put.contig!=NULL)); -} - -/* - * Select the appropriate conversion routine for unpacked data. - * - * NB: we assume that unpacked single channel data is directed - * to the "packed routines. - */ -static int -PickSeparateCase(TIFFRGBAImage* img) -{ - img->get = TIFFIsTiled(img->tif) ? gtTileSeparate : gtStripSeparate; - img->put.separate = NULL; - switch (img->photometric) { - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - /* greyscale images processed pretty much as RGB by gtTileSeparate */ - case PHOTOMETRIC_RGB: - switch (img->bitspersample) { - case 8: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - img->put.separate = putRGBAAseparate8bittile; - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - if (BuildMapUaToAa(img)) - img->put.separate = putRGBUAseparate8bittile; - } - else - img->put.separate = putRGBseparate8bittile; - break; - case 16: - if (img->alpha == EXTRASAMPLE_ASSOCALPHA) - { - if (BuildMapBitdepth16To8(img)) - img->put.separate = putRGBAAseparate16bittile; - } - else if (img->alpha == EXTRASAMPLE_UNASSALPHA) - { - if (BuildMapBitdepth16To8(img) && - BuildMapUaToAa(img)) - img->put.separate = putRGBUAseparate16bittile; - } - else - { - if (BuildMapBitdepth16To8(img)) - img->put.separate = putRGBseparate16bittile; - } - break; - } - break; - case PHOTOMETRIC_SEPARATED: - if (img->bitspersample == 8 && img->samplesperpixel == 4) - { - img->alpha = 1; // Not alpha, but seems like the only way to get 4th band - img->put.separate = putCMYKseparate8bittile; - } - break; - case PHOTOMETRIC_YCBCR: - if ((img->bitspersample==8) && (img->samplesperpixel==3)) - { - if (initYCbCrConversion(img)!=0) - { - uint16 hs, vs; - TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs); - switch ((hs<<4)|vs) { - case 0x11: - img->put.separate = putseparate8bitYCbCr11tile; - break; - /* TODO: add other cases here */ - } - } - } - break; - } - return ((img->get!=NULL) && (img->put.separate!=NULL)); -} - -static int -BuildMapUaToAa(TIFFRGBAImage* img) -{ - static const char module[]="BuildMapUaToAa"; - uint8* m; - uint16 na,nv; - assert(img->UaToAa==NULL); - img->UaToAa=_TIFFmalloc(65536); - if (img->UaToAa==NULL) - { - TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory"); - return(0); - } - m=img->UaToAa; - for (na=0; na<256; na++) - { - for (nv=0; nv<256; nv++) - *m++=(nv*na+127)/255; - } - return(1); -} - -static int -BuildMapBitdepth16To8(TIFFRGBAImage* img) -{ - static const char module[]="BuildMapBitdepth16To8"; - uint8* m; - uint32 n; - assert(img->Bitdepth16To8==NULL); - img->Bitdepth16To8=_TIFFmalloc(65536); - if (img->Bitdepth16To8==NULL) - { - TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory"); - return(0); - } - m=img->Bitdepth16To8; - for (n=0; n<65536; n++) - *m++=(n+128)/257; - return(1); -} - - -/* - * Read a whole strip off data from the file, and convert to RGBA form. - * If this is the last strip, then it will only contain the portion of - * the strip that is actually within the image space. The result is - * organized in bottom to top form. - */ - - -int -TIFFReadRGBAStrip(TIFF* tif, uint32 row, uint32 * raster ) - -{ - char emsg[1024] = ""; - TIFFRGBAImage img; - int ok; - uint32 rowsperstrip, rows_to_read; - - if( TIFFIsTiled( tif ) ) - { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), - "Can't use TIFFReadRGBAStrip() with tiled file."); - return (0); - } - - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - if( (row % rowsperstrip) != 0 ) - { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), - "Row passed to TIFFReadRGBAStrip() must be first in a strip."); - return (0); - } - - if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, 0, emsg)) { - - img.row_offset = row; - img.col_offset = 0; - - if( row + rowsperstrip > img.height ) - rows_to_read = img.height - row; - else - rows_to_read = rowsperstrip; - - ok = TIFFRGBAImageGet(&img, raster, img.width, rows_to_read ); - - TIFFRGBAImageEnd(&img); - } else { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); - ok = 0; - } - - return (ok); -} - -/* - * Read a whole tile off data from the file, and convert to RGBA form. - * The returned RGBA data is organized from bottom to top of tile, - * and may include zeroed areas if the tile extends off the image. - */ - -int -TIFFReadRGBATile(TIFF* tif, uint32 col, uint32 row, uint32 * raster) - -{ - char emsg[1024] = ""; - TIFFRGBAImage img; - int ok; - uint32 tile_xsize, tile_ysize; - uint32 read_xsize, read_ysize; - uint32 i_row; - - /* - * Verify that our request is legal - on a tile file, and on a - * tile boundary. - */ - - if( !TIFFIsTiled( tif ) ) - { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), - "Can't use TIFFReadRGBATile() with stripped file."); - return (0); - } - - TIFFGetFieldDefaulted(tif, TIFFTAG_TILEWIDTH, &tile_xsize); - TIFFGetFieldDefaulted(tif, TIFFTAG_TILELENGTH, &tile_ysize); - if( (col % tile_xsize) != 0 || (row % tile_ysize) != 0 ) - { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), - "Row/col passed to TIFFReadRGBATile() must be top" - "left corner of a tile."); - return (0); - } - - /* - * Setup the RGBA reader. - */ - - if (!TIFFRGBAImageOK(tif, emsg) - || !TIFFRGBAImageBegin(&img, tif, 0, emsg)) { - TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg); - return( 0 ); - } - - /* - * The TIFFRGBAImageGet() function doesn't allow us to get off the - * edge of the image, even to fill an otherwise valid tile. So we - * figure out how much we can read, and fix up the tile buffer to - * a full tile configuration afterwards. - */ - - if( row + tile_ysize > img.height ) - read_ysize = img.height - row; - else - read_ysize = tile_ysize; - - if( col + tile_xsize > img.width ) - read_xsize = img.width - col; - else - read_xsize = tile_xsize; - - /* - * Read the chunk of imagery. - */ - - img.row_offset = row; - img.col_offset = col; - - ok = TIFFRGBAImageGet(&img, raster, read_xsize, read_ysize ); - - TIFFRGBAImageEnd(&img); - - /* - * If our read was incomplete we will need to fix up the tile by - * shifting the data around as if a full tile of data is being returned. - * - * This is all the more complicated because the image is organized in - * bottom to top format. - */ - - if( read_xsize == tile_xsize && read_ysize == tile_ysize ) - return( ok ); - - for( i_row = 0; i_row < read_ysize; i_row++ ) { - memmove( raster + (tile_ysize - i_row - 1) * tile_xsize, - raster + (read_ysize - i_row - 1) * read_xsize, - read_xsize * sizeof(uint32) ); - _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize+read_xsize, - 0, sizeof(uint32) * (tile_xsize - read_xsize) ); - } - - for( i_row = read_ysize; i_row < tile_ysize; i_row++ ) { - _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize, - 0, sizeof(uint32) * tile_xsize ); - } - - return (ok); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_jbig.c b/tiff/libtiff/tif_jbig.c deleted file mode 100755 index 37878f6..0000000 --- a/tiff/libtiff/tif_jbig.c +++ /dev/null @@ -1,213 +0,0 @@ -/* $Id: tif_jbig.c,v 1.15 2010-03-10 18:56:48 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * JBIG Compression Algorithm Support. - * Contributed by Lee Howard - * - */ - -#include "tiffiop.h" - -#ifdef JBIG_SUPPORT -#include "jbig.h" - -static int JBIGSetupDecode(TIFF* tif) -{ - if (TIFFNumberOfStrips(tif) != 1) - { - TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in decoder"); - return 0; - } - - return 1; -} - -static int JBIGDecode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) -{ - struct jbg_dec_state decoder; - int decodeStatus = 0; - unsigned char* pImage = NULL; - (void) size, (void) s; - - if (isFillOrder(tif, tif->tif_dir.td_fillorder)) - { - TIFFReverseBits(tif->tif_rawdata, tif->tif_rawdatasize); - } - - jbg_dec_init(&decoder); - -#if defined(HAVE_JBG_NEWLEN) - jbg_newlen(tif->tif_rawdata, (size_t)tif->tif_rawdatasize); - /* - * I do not check the return status of jbg_newlen because even if this - * function fails it does not necessarily mean that decoding the image - * will fail. It is generally only needed for received fax images - * that do not contain the actual length of the image in the BIE - * header. I do not log when an error occurs because that will cause - * problems when converting JBIG encoded TIFF's to - * PostScript. As long as the actual image length is contained in the - * BIE header jbg_dec_in should succeed. - */ -#endif /* HAVE_JBG_NEWLEN */ - - decodeStatus = jbg_dec_in(&decoder, (unsigned char*)tif->tif_rawdata, - (size_t)tif->tif_rawdatasize, NULL); - if (JBG_EOK != decodeStatus) - { - /* - * XXX: JBG_EN constant was defined in pre-2.0 releases of the - * JBIG-KIT. Since the 2.0 the error reporting functions were - * changed. We will handle both cases here. - */ - TIFFErrorExt(tif->tif_clientdata, - "JBIG", "Error (%d) decoding: %s", - decodeStatus, -#if defined(JBG_EN) - jbg_strerror(decodeStatus, JBG_EN) -#else - jbg_strerror(decodeStatus) -#endif - ); - return 0; - } - - pImage = jbg_dec_getimage(&decoder, 0); - _TIFFmemcpy(buffer, pImage, jbg_dec_getsize(&decoder)); - jbg_dec_free(&decoder); - return 1; -} - -static int JBIGSetupEncode(TIFF* tif) -{ - if (TIFFNumberOfStrips(tif) != 1) - { - TIFFErrorExt(tif->tif_clientdata, "JBIG", "Multistrip images not supported in encoder"); - return 0; - } - - return 1; -} - -static int JBIGCopyEncodedData(TIFF* tif, unsigned char* pp, size_t cc, uint16 s) -{ - (void) s; - while (cc > 0) - { - tmsize_t n = (tmsize_t)cc; - - if (tif->tif_rawcc + n > tif->tif_rawdatasize) - { - n = tif->tif_rawdatasize - tif->tif_rawcc; - } - - assert(n > 0); - _TIFFmemcpy(tif->tif_rawcp, pp, n); - tif->tif_rawcp += n; - tif->tif_rawcc += n; - pp += n; - cc -= (size_t)n; - if (tif->tif_rawcc >= tif->tif_rawdatasize && - !TIFFFlushData1(tif)) - { - return (-1); - } - } - - return (1); -} - -static void JBIGOutputBie(unsigned char* buffer, size_t len, void* userData) -{ - TIFF* tif = (TIFF*)userData; - - if (isFillOrder(tif, tif->tif_dir.td_fillorder)) - { - TIFFReverseBits(buffer, (tmsize_t)len); - } - - JBIGCopyEncodedData(tif, buffer, len, 0); -} - -static int JBIGEncode(TIFF* tif, uint8* buffer, tmsize_t size, uint16 s) -{ - TIFFDirectory* dir = &tif->tif_dir; - struct jbg_enc_state encoder; - - (void) size, (void) s; - - jbg_enc_init(&encoder, - dir->td_imagewidth, - dir->td_imagelength, - 1, - &buffer, - JBIGOutputBie, - tif); - /* - * jbg_enc_out does the "real" encoding. As data is encoded, - * JBIGOutputBie is called, which writes the data to the directory. - */ - jbg_enc_out(&encoder); - jbg_enc_free(&encoder); - - return 1; -} - -int TIFFInitJBIG(TIFF* tif, int scheme) -{ - assert(scheme == COMPRESSION_JBIG); - - /* - * These flags are set so the JBIG Codec can control when to reverse - * bits and when not to and to allow the jbig decoder and bit reverser - * to write to memory when necessary. - */ - tif->tif_flags |= TIFF_NOBITREV; - tif->tif_flags &= ~TIFF_MAPPED; - - /* Setup the function pointers for encode, decode, and cleanup. */ - tif->tif_setupdecode = JBIGSetupDecode; - tif->tif_decodestrip = JBIGDecode; - - tif->tif_setupencode = JBIGSetupEncode; - tif->tif_encodestrip = JBIGEncode; - - return 1; -} - -#endif /* JBIG_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_jpeg.c b/tiff/libtiff/tif_jpeg.c deleted file mode 100755 index dc77f55..0000000 --- a/tiff/libtiff/tif_jpeg.c +++ /dev/null @@ -1,2354 +0,0 @@ -/* $Id: tif_jpeg.c,v 1.114 2014-12-30 16:37:22 erouault Exp $ */ - -/* - * Copyright (c) 1994-1997 Sam Leffler - * Copyright (c) 1994-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#define WIN32_LEAN_AND_MEAN -#define VC_EXTRALEAN - -#include "tiffiop.h" -#ifdef JPEG_SUPPORT - -/* - * TIFF Library - * - * JPEG Compression support per TIFF Technical Note #2 - * (*not* per the original TIFF 6.0 spec). - * - * This file is simply an interface to the libjpeg library written by - * the Independent JPEG Group. You need release 5 or later of the IJG - * code, which you can find on the Internet at ftp.uu.net:/graphics/jpeg/. - * - * Contributed by Tom Lane . - */ -#include - -int TIFFFillStrip(TIFF* tif, uint32 strip); -int TIFFFillTile(TIFF* tif, uint32 tile); -int TIFFReInitJPEG_12( TIFF *tif, int scheme, int is_encode ); - -/* We undefine FAR to avoid conflict with JPEG definition */ - -#ifdef FAR -#undef FAR -#endif - -/* - Libjpeg's jmorecfg.h defines INT16 and INT32, but only if XMD_H is - not defined. Unfortunately, the MinGW and Borland compilers include - a typedef for INT32, which causes a conflict. MSVC does not include - a conficting typedef given the headers which are included. -*/ -#if defined(__BORLANDC__) || defined(__MINGW32__) -# define XMD_H 1 -#endif - -/* - The windows RPCNDR.H file defines boolean, but defines it with the - unsigned char size. You should compile JPEG library using appropriate - definitions in jconfig.h header, but many users compile library in wrong - way. That causes errors of the following type: - - "JPEGLib: JPEG parameter struct mismatch: library thinks size is 432, - caller expects 464" - - For such users we wil fix the problem here. See install.doc file from - the JPEG library distribution for details. -*/ - -/* Define "boolean" as unsigned char, not int, per Windows custom. */ -#if defined(__WIN32__) && !defined(__MINGW32__) -# ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ - typedef unsigned char boolean; -# endif -# define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - -#include "jpeglib.h" -#include "jerror.h" - -/* - * Do we want to do special processing suitable for when JSAMPLE is a - * 16bit value? - */ - -#if defined(JPEG_LIB_MK1) -# define JPEG_LIB_MK1_OR_12BIT 1 -#elif BITS_IN_JSAMPLE == 12 -# define JPEG_LIB_MK1_OR_12BIT 1 -#endif - -/* - * We are using width_in_blocks which is supposed to be private to - * libjpeg. Unfortunately, the libjpeg delivered with Cygwin has - * renamed this member to width_in_data_units. Since the header has - * also renamed a define, use that unique define name in order to - * detect the problem header and adjust to suit. - */ -#if defined(D_MAX_DATA_UNITS_IN_MCU) -#define width_in_blocks width_in_data_units -#endif - -/* - * On some machines it may be worthwhile to use _setjmp or sigsetjmp - * in place of plain setjmp. These macros will make it easier. - */ -#define SETJMP(jbuf) setjmp(jbuf) -#define LONGJMP(jbuf,code) longjmp(jbuf,code) -#define JMP_BUF jmp_buf - -typedef struct jpeg_destination_mgr jpeg_destination_mgr; -typedef struct jpeg_source_mgr jpeg_source_mgr; -typedef struct jpeg_error_mgr jpeg_error_mgr; - -/* - * State block for each open TIFF file using - * libjpeg to do JPEG compression/decompression. - * - * libjpeg's visible state is either a jpeg_compress_struct - * or jpeg_decompress_struct depending on which way we - * are going. comm can be used to refer to the fields - * which are common to both. - * - * NB: cinfo is required to be the first member of JPEGState, - * so we can safely cast JPEGState* -> jpeg_xxx_struct* - * and vice versa! - */ -typedef struct { - union { - struct jpeg_compress_struct c; - struct jpeg_decompress_struct d; - struct jpeg_common_struct comm; - } cinfo; /* NB: must be first */ - int cinfo_initialized; - - jpeg_error_mgr err; /* libjpeg error manager */ - JMP_BUF exit_jmpbuf; /* for catching libjpeg failures */ - /* - * The following two members could be a union, but - * they're small enough that it's not worth the effort. - */ - jpeg_destination_mgr dest; /* data dest for compression */ - jpeg_source_mgr src; /* data source for decompression */ - /* private state */ - TIFF* tif; /* back link needed by some code */ - uint16 photometric; /* copy of PhotometricInterpretation */ - uint16 h_sampling; /* luminance sampling factors */ - uint16 v_sampling; - tmsize_t bytesperline; /* decompressed bytes per scanline */ - /* pointers to intermediate buffers when processing downsampled data */ - JSAMPARRAY ds_buffer[MAX_COMPONENTS]; - int scancount; /* number of "scanlines" accumulated */ - int samplesperclump; - - TIFFVGetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ - TIFFPrintMethod printdir; /* super-class method */ - TIFFStripMethod defsparent; /* super-class method */ - TIFFTileMethod deftparent; /* super-class method */ - /* pseudo-tag fields */ - void* jpegtables; /* JPEGTables tag value, or NULL */ - uint32 jpegtables_length; /* number of bytes in same */ - int jpegquality; /* Compression quality level */ - int jpegcolormode; /* Auto RGB<=>YCbCr convert? */ - int jpegtablesmode; /* What to put in JPEGTables */ - - int ycbcrsampling_fetched; -} JPEGState; - -#define JState(tif) ((JPEGState*)(tif)->tif_data) - -static int JPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int JPEGDecodeRaw(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int JPEGEncode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int JPEGEncodeRaw(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int JPEGInitializeLibJPEG(TIFF * tif, int decode ); -static int DecodeRowError(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); - -#define FIELD_JPEGTABLES (FIELD_CODEC+0) - -static const TIFFField jpegFields[] = { - { TIFFTAG_JPEGTABLES, -3, -3, TIFF_UNDEFINED, 0, TIFF_SETGET_C32_UINT8, TIFF_SETGET_C32_UINT8, FIELD_JPEGTABLES, FALSE, TRUE, "JPEGTables", NULL }, - { TIFFTAG_JPEGQUALITY, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "", NULL }, - { TIFFTAG_JPEGCOLORMODE, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "", NULL }, - { TIFFTAG_JPEGTABLESMODE, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "", NULL } -}; - -/* - * libjpeg interface layer. - * - * We use setjmp/longjmp to return control to libtiff - * when a fatal error is encountered within the JPEG - * library. We also direct libjpeg error and warning - * messages through the appropriate libtiff handlers. - */ - -/* - * Error handling routines (these replace corresponding - * IJG routines from jerror.c). These are used for both - * compression and decompression. - */ -static void -TIFFjpeg_error_exit(j_common_ptr cinfo) -{ - JPEGState *sp = (JPEGState *) cinfo; /* NB: cinfo assumed first */ - char buffer[JMSG_LENGTH_MAX]; - - (*cinfo->err->format_message) (cinfo, buffer); - TIFFErrorExt(sp->tif->tif_clientdata, "JPEGLib", "%s", buffer); /* display the error message */ - jpeg_abort(cinfo); /* clean up libjpeg state */ - LONGJMP(sp->exit_jmpbuf, 1); /* return to libtiff caller */ -} - -/* - * This routine is invoked only for warning messages, - * since error_exit does its own thing and trace_level - * is never set > 0. - */ -static void -TIFFjpeg_output_message(j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - (*cinfo->err->format_message) (cinfo, buffer); - TIFFWarningExt(((JPEGState *) cinfo)->tif->tif_clientdata, "JPEGLib", "%s", buffer); -} - -/* - * Interface routines. This layer of routines exists - * primarily to limit side-effects from using setjmp. - * Also, normal/error returns are converted into return - * values per libtiff practice. - */ -#define CALLJPEG(sp, fail, op) (SETJMP((sp)->exit_jmpbuf) ? (fail) : (op)) -#define CALLVJPEG(sp, op) CALLJPEG(sp, 0, ((op),1)) - -static int -TIFFjpeg_create_compress(JPEGState* sp) -{ - /* initialize JPEG error handling */ - sp->cinfo.c.err = jpeg_std_error(&sp->err); - sp->err.error_exit = TIFFjpeg_error_exit; - sp->err.output_message = TIFFjpeg_output_message; - - return CALLVJPEG(sp, jpeg_create_compress(&sp->cinfo.c)); -} - -static int -TIFFjpeg_create_decompress(JPEGState* sp) -{ - /* initialize JPEG error handling */ - sp->cinfo.d.err = jpeg_std_error(&sp->err); - sp->err.error_exit = TIFFjpeg_error_exit; - sp->err.output_message = TIFFjpeg_output_message; - - return CALLVJPEG(sp, jpeg_create_decompress(&sp->cinfo.d)); -} - -static int -TIFFjpeg_set_defaults(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_set_defaults(&sp->cinfo.c)); -} - -static int -TIFFjpeg_set_colorspace(JPEGState* sp, J_COLOR_SPACE colorspace) -{ - return CALLVJPEG(sp, jpeg_set_colorspace(&sp->cinfo.c, colorspace)); -} - -static int -TIFFjpeg_set_quality(JPEGState* sp, int quality, boolean force_baseline) -{ - return CALLVJPEG(sp, - jpeg_set_quality(&sp->cinfo.c, quality, force_baseline)); -} - -static int -TIFFjpeg_suppress_tables(JPEGState* sp, boolean suppress) -{ - return CALLVJPEG(sp, jpeg_suppress_tables(&sp->cinfo.c, suppress)); -} - -static int -TIFFjpeg_start_compress(JPEGState* sp, boolean write_all_tables) -{ - return CALLVJPEG(sp, - jpeg_start_compress(&sp->cinfo.c, write_all_tables)); -} - -static int -TIFFjpeg_write_scanlines(JPEGState* sp, JSAMPARRAY scanlines, int num_lines) -{ - return CALLJPEG(sp, -1, (int) jpeg_write_scanlines(&sp->cinfo.c, - scanlines, (JDIMENSION) num_lines)); -} - -static int -TIFFjpeg_write_raw_data(JPEGState* sp, JSAMPIMAGE data, int num_lines) -{ - return CALLJPEG(sp, -1, (int) jpeg_write_raw_data(&sp->cinfo.c, - data, (JDIMENSION) num_lines)); -} - -static int -TIFFjpeg_finish_compress(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_finish_compress(&sp->cinfo.c)); -} - -static int -TIFFjpeg_write_tables(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_write_tables(&sp->cinfo.c)); -} - -static int -TIFFjpeg_read_header(JPEGState* sp, boolean require_image) -{ - return CALLJPEG(sp, -1, jpeg_read_header(&sp->cinfo.d, require_image)); -} - -static int -TIFFjpeg_start_decompress(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_start_decompress(&sp->cinfo.d)); -} - -static int -TIFFjpeg_read_scanlines(JPEGState* sp, JSAMPARRAY scanlines, int max_lines) -{ - return CALLJPEG(sp, -1, (int) jpeg_read_scanlines(&sp->cinfo.d, - scanlines, (JDIMENSION) max_lines)); -} - -static int -TIFFjpeg_read_raw_data(JPEGState* sp, JSAMPIMAGE data, int max_lines) -{ - return CALLJPEG(sp, -1, (int) jpeg_read_raw_data(&sp->cinfo.d, - data, (JDIMENSION) max_lines)); -} - -static int -TIFFjpeg_finish_decompress(JPEGState* sp) -{ - return CALLJPEG(sp, -1, (int) jpeg_finish_decompress(&sp->cinfo.d)); -} - -static int -TIFFjpeg_abort(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_abort(&sp->cinfo.comm)); -} - -static int -TIFFjpeg_destroy(JPEGState* sp) -{ - return CALLVJPEG(sp, jpeg_destroy(&sp->cinfo.comm)); -} - -static JSAMPARRAY -TIFFjpeg_alloc_sarray(JPEGState* sp, int pool_id, - JDIMENSION samplesperrow, JDIMENSION numrows) -{ - return CALLJPEG(sp, (JSAMPARRAY) NULL, - (*sp->cinfo.comm.mem->alloc_sarray) - (&sp->cinfo.comm, pool_id, samplesperrow, numrows)); -} - -/* - * JPEG library destination data manager. - * These routines direct compressed data from libjpeg into the - * libtiff output buffer. - */ - -static void -std_init_destination(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - TIFF* tif = sp->tif; - - sp->dest.next_output_byte = (JOCTET*) tif->tif_rawdata; - sp->dest.free_in_buffer = (size_t) tif->tif_rawdatasize; -} - -static boolean -std_empty_output_buffer(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - TIFF* tif = sp->tif; - - /* the entire buffer has been filled */ - tif->tif_rawcc = tif->tif_rawdatasize; - -#ifdef IPPJ_HUFF - /* - * The Intel IPP performance library does not necessarily fill up - * the whole output buffer on each pass, so only dump out the parts - * that have been filled. - * http://trac.osgeo.org/gdal/wiki/JpegIPP - */ - if ( sp->dest.free_in_buffer >= 0 ) { - tif->tif_rawcc = tif->tif_rawdatasize - sp->dest.free_in_buffer; - } -#endif - - TIFFFlushData1(tif); - sp->dest.next_output_byte = (JOCTET*) tif->tif_rawdata; - sp->dest.free_in_buffer = (size_t) tif->tif_rawdatasize; - - return (TRUE); -} - -static void -std_term_destination(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - TIFF* tif = sp->tif; - - tif->tif_rawcp = (uint8*) sp->dest.next_output_byte; - tif->tif_rawcc = - tif->tif_rawdatasize - (tmsize_t) sp->dest.free_in_buffer; - /* NB: libtiff does the final buffer flush */ -} - -static void -TIFFjpeg_data_dest(JPEGState* sp, TIFF* tif) -{ - (void) tif; - sp->cinfo.c.dest = &sp->dest; - sp->dest.init_destination = std_init_destination; - sp->dest.empty_output_buffer = std_empty_output_buffer; - sp->dest.term_destination = std_term_destination; -} - -/* - * Alternate destination manager for outputting to JPEGTables field. - */ - -static void -tables_init_destination(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - - /* while building, jpegtables_length is allocated buffer size */ - sp->dest.next_output_byte = (JOCTET*) sp->jpegtables; - sp->dest.free_in_buffer = (size_t) sp->jpegtables_length; -} - -static boolean -tables_empty_output_buffer(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - void* newbuf; - - /* the entire buffer has been filled; enlarge it by 1000 bytes */ - newbuf = _TIFFrealloc((void*) sp->jpegtables, - (tmsize_t) (sp->jpegtables_length + 1000)); - if (newbuf == NULL) - ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 100); - sp->dest.next_output_byte = (JOCTET*) newbuf + sp->jpegtables_length; - sp->dest.free_in_buffer = (size_t) 1000; - sp->jpegtables = newbuf; - sp->jpegtables_length += 1000; - return (TRUE); -} - -static void -tables_term_destination(j_compress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - - /* set tables length to number of bytes actually emitted */ - sp->jpegtables_length -= (uint32) sp->dest.free_in_buffer; -} - -static int -TIFFjpeg_tables_dest(JPEGState* sp, TIFF* tif) -{ - (void) tif; - /* - * Allocate a working buffer for building tables. - * Initial size is 1000 bytes, which is usually adequate. - */ - if (sp->jpegtables) - _TIFFfree(sp->jpegtables); - sp->jpegtables_length = 1000; - sp->jpegtables = (void*) _TIFFmalloc((tmsize_t) sp->jpegtables_length); - if (sp->jpegtables == NULL) { - sp->jpegtables_length = 0; - TIFFErrorExt(sp->tif->tif_clientdata, "TIFFjpeg_tables_dest", "No space for JPEGTables"); - return (0); - } - sp->cinfo.c.dest = &sp->dest; - sp->dest.init_destination = tables_init_destination; - sp->dest.empty_output_buffer = tables_empty_output_buffer; - sp->dest.term_destination = tables_term_destination; - return (1); -} - -/* - * JPEG library source data manager. - * These routines supply compressed data to libjpeg. - */ - -static void -std_init_source(j_decompress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - TIFF* tif = sp->tif; - - sp->src.next_input_byte = (const JOCTET*) tif->tif_rawdata; - sp->src.bytes_in_buffer = (size_t) tif->tif_rawcc; -} - -static boolean -std_fill_input_buffer(j_decompress_ptr cinfo) -{ - JPEGState* sp = (JPEGState* ) cinfo; - static const JOCTET dummy_EOI[2] = { 0xFF, JPEG_EOI }; - -#ifdef IPPJ_HUFF - /* - * The Intel IPP performance library does not necessarily read the whole - * input buffer in one pass, so it is possible to get here with data - * yet to read. - * - * We just return without doing anything, until the entire buffer has - * been read. - * http://trac.osgeo.org/gdal/wiki/JpegIPP - */ - if( sp->src.bytes_in_buffer > 0 ) { - return (TRUE); - } -#endif - - /* - * Normally the whole strip/tile is read and so we don't need to do - * a fill. In the case of CHUNKY_STRIP_READ_SUPPORT we might not have - * all the data, but the rawdata is refreshed between scanlines and - * we push this into the io machinery in JPEGDecode(). - * http://trac.osgeo.org/gdal/ticket/3894 - */ - - WARNMS(cinfo, JWRN_JPEG_EOF); - /* insert a fake EOI marker */ - sp->src.next_input_byte = dummy_EOI; - sp->src.bytes_in_buffer = 2; - return (TRUE); -} - -static void -std_skip_input_data(j_decompress_ptr cinfo, long num_bytes) -{ - JPEGState* sp = (JPEGState*) cinfo; - - if (num_bytes > 0) { - if ((size_t)num_bytes > sp->src.bytes_in_buffer) { - /* oops, buffer overrun */ - (void) std_fill_input_buffer(cinfo); - } else { - sp->src.next_input_byte += (size_t) num_bytes; - sp->src.bytes_in_buffer -= (size_t) num_bytes; - } - } -} - -static void -std_term_source(j_decompress_ptr cinfo) -{ - /* No work necessary here */ - (void) cinfo; -} - -static void -TIFFjpeg_data_src(JPEGState* sp, TIFF* tif) -{ - (void) tif; - sp->cinfo.d.src = &sp->src; - sp->src.init_source = std_init_source; - sp->src.fill_input_buffer = std_fill_input_buffer; - sp->src.skip_input_data = std_skip_input_data; - sp->src.resync_to_restart = jpeg_resync_to_restart; - sp->src.term_source = std_term_source; - sp->src.bytes_in_buffer = 0; /* for safety */ - sp->src.next_input_byte = NULL; -} - -/* - * Alternate source manager for reading from JPEGTables. - * We can share all the code except for the init routine. - */ - -static void -tables_init_source(j_decompress_ptr cinfo) -{ - JPEGState* sp = (JPEGState*) cinfo; - - sp->src.next_input_byte = (const JOCTET*) sp->jpegtables; - sp->src.bytes_in_buffer = (size_t) sp->jpegtables_length; -} - -static void -TIFFjpeg_tables_src(JPEGState* sp, TIFF* tif) -{ - TIFFjpeg_data_src(sp, tif); - sp->src.init_source = tables_init_source; -} - -/* - * Allocate downsampled-data buffers needed for downsampled I/O. - * We use values computed in jpeg_start_compress or jpeg_start_decompress. - * We use libjpeg's allocator so that buffers will be released automatically - * when done with strip/tile. - * This is also a handy place to compute samplesperclump, bytesperline. - */ -static int -alloc_downsampled_buffers(TIFF* tif, jpeg_component_info* comp_info, - int num_components) -{ - JPEGState* sp = JState(tif); - int ci; - jpeg_component_info* compptr; - JSAMPARRAY buf; - int samples_per_clump = 0; - - for (ci = 0, compptr = comp_info; ci < num_components; - ci++, compptr++) { - samples_per_clump += compptr->h_samp_factor * - compptr->v_samp_factor; - buf = TIFFjpeg_alloc_sarray(sp, JPOOL_IMAGE, - compptr->width_in_blocks * DCTSIZE, - (JDIMENSION) (compptr->v_samp_factor*DCTSIZE)); - if (buf == NULL) - return (0); - sp->ds_buffer[ci] = buf; - } - sp->samplesperclump = samples_per_clump; - return (1); -} - - -/* - * JPEG Decoding. - */ - -#ifdef CHECK_JPEG_YCBCR_SUBSAMPLING - -#define JPEG_MARKER_SOF0 0xC0 -#define JPEG_MARKER_SOF1 0xC1 -#define JPEG_MARKER_SOF2 0xC2 -#define JPEG_MARKER_SOF9 0xC9 -#define JPEG_MARKER_SOF10 0xCA -#define JPEG_MARKER_DHT 0xC4 -#define JPEG_MARKER_SOI 0xD8 -#define JPEG_MARKER_SOS 0xDA -#define JPEG_MARKER_DQT 0xDB -#define JPEG_MARKER_DRI 0xDD -#define JPEG_MARKER_APP0 0xE0 -#define JPEG_MARKER_COM 0xFE -struct JPEGFixupTagsSubsamplingData -{ - TIFF* tif; - void* buffer; - uint32 buffersize; - uint8* buffercurrentbyte; - uint32 bufferbytesleft; - uint64 fileoffset; - uint64 filebytesleft; - uint8 filepositioned; -}; -static void JPEGFixupTagsSubsampling(TIFF* tif); -static int JPEGFixupTagsSubsamplingSec(struct JPEGFixupTagsSubsamplingData* data); -static int JPEGFixupTagsSubsamplingReadByte(struct JPEGFixupTagsSubsamplingData* data, uint8* result); -static int JPEGFixupTagsSubsamplingReadWord(struct JPEGFixupTagsSubsamplingData* data, uint16* result); -static void JPEGFixupTagsSubsamplingSkip(struct JPEGFixupTagsSubsamplingData* data, uint16 skiplength); - -#endif - -static int -JPEGFixupTags(TIFF* tif) -{ -#ifdef CHECK_JPEG_YCBCR_SUBSAMPLING - if ((tif->tif_dir.td_photometric==PHOTOMETRIC_YCBCR)&& - (tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG)&& - (tif->tif_dir.td_samplesperpixel==3)) - JPEGFixupTagsSubsampling(tif); -#endif - - return(1); -} - -#ifdef CHECK_JPEG_YCBCR_SUBSAMPLING - -static void -JPEGFixupTagsSubsampling(TIFF* tif) -{ - /* - * Some JPEG-in-TIFF produces do not emit the YCBCRSUBSAMPLING values in - * the TIFF tags, but still use non-default (2,2) values within the jpeg - * data stream itself. In order for TIFF applications to work properly - * - for instance to get the strip buffer size right - it is imperative - * that the subsampling be available before we start reading the image - * data normally. This function will attempt to analyze the first strip in - * order to get the sampling values from the jpeg data stream. - * - * Note that JPEGPreDeocode() will produce a fairly loud warning when the - * discovered sampling does not match the default sampling (2,2) or whatever - * was actually in the tiff tags. - * - * See the bug in bugzilla for details: - * - * http://bugzilla.remotesensing.org/show_bug.cgi?id=168 - * - * Frank Warmerdam, July 2002 - * Joris Van Damme, May 2007 - */ - static const char module[] = "JPEGFixupTagsSubsampling"; - struct JPEGFixupTagsSubsamplingData m; - - _TIFFFillStriles( tif ); - - if( tif->tif_dir.td_stripbytecount == NULL - || tif->tif_dir.td_stripoffset == NULL - || tif->tif_dir.td_stripbytecount[0] == 0 ) - { - /* Do not even try to check if the first strip/tile does not - yet exist, as occurs when GDAL has created a new NULL file - for instance. */ - return; - } - - m.tif=tif; - m.buffersize=2048; - m.buffer=_TIFFmalloc(m.buffersize); - if (m.buffer==NULL) - { - TIFFWarningExt(tif->tif_clientdata,module, - "Unable to allocate memory for auto-correcting of subsampling values; auto-correcting skipped"); - return; - } - m.buffercurrentbyte=NULL; - m.bufferbytesleft=0; - m.fileoffset=tif->tif_dir.td_stripoffset[0]; - m.filepositioned=0; - m.filebytesleft=tif->tif_dir.td_stripbytecount[0]; - if (!JPEGFixupTagsSubsamplingSec(&m)) - TIFFWarningExt(tif->tif_clientdata,module, - "Unable to auto-correct subsampling values, likely corrupt JPEG compressed data in first strip/tile; auto-correcting skipped"); - _TIFFfree(m.buffer); -} - -static int -JPEGFixupTagsSubsamplingSec(struct JPEGFixupTagsSubsamplingData* data) -{ - static const char module[] = "JPEGFixupTagsSubsamplingSec"; - uint8 m; - while (1) - { - while (1) - { - if (!JPEGFixupTagsSubsamplingReadByte(data,&m)) - return(0); - if (m==255) - break; - } - while (1) - { - if (!JPEGFixupTagsSubsamplingReadByte(data,&m)) - return(0); - if (m!=255) - break; - } - switch (m) - { - case JPEG_MARKER_SOI: - /* this type of marker has no data and should be skipped */ - break; - case JPEG_MARKER_COM: - case JPEG_MARKER_APP0: - case JPEG_MARKER_APP0+1: - case JPEG_MARKER_APP0+2: - case JPEG_MARKER_APP0+3: - case JPEG_MARKER_APP0+4: - case JPEG_MARKER_APP0+5: - case JPEG_MARKER_APP0+6: - case JPEG_MARKER_APP0+7: - case JPEG_MARKER_APP0+8: - case JPEG_MARKER_APP0+9: - case JPEG_MARKER_APP0+10: - case JPEG_MARKER_APP0+11: - case JPEG_MARKER_APP0+12: - case JPEG_MARKER_APP0+13: - case JPEG_MARKER_APP0+14: - case JPEG_MARKER_APP0+15: - case JPEG_MARKER_DQT: - case JPEG_MARKER_SOS: - case JPEG_MARKER_DHT: - case JPEG_MARKER_DRI: - /* this type of marker has data, but it has no use to us and should be skipped */ - { - uint16 n; - if (!JPEGFixupTagsSubsamplingReadWord(data,&n)) - return(0); - if (n<2) - return(0); - n-=2; - if (n>0) - JPEGFixupTagsSubsamplingSkip(data,n); - } - break; - case JPEG_MARKER_SOF0: /* Baseline sequential Huffman */ - case JPEG_MARKER_SOF1: /* Extended sequential Huffman */ - case JPEG_MARKER_SOF2: /* Progressive Huffman: normally not allowed by TechNote, but that doesn't hurt supporting it */ - case JPEG_MARKER_SOF9: /* Extended sequential arithmetic */ - case JPEG_MARKER_SOF10: /* Progressive arithmetic: normally not allowed by TechNote, but that doesn't hurt supporting it */ - /* this marker contains the subsampling factors we're scanning for */ - { - uint16 n; - uint16 o; - uint8 p; - uint8 ph,pv; - if (!JPEGFixupTagsSubsamplingReadWord(data,&n)) - return(0); - if (n!=8+data->tif->tif_dir.td_samplesperpixel*3) - return(0); - JPEGFixupTagsSubsamplingSkip(data,7); - if (!JPEGFixupTagsSubsamplingReadByte(data,&p)) - return(0); - ph=(p>>4); - pv=(p&15); - JPEGFixupTagsSubsamplingSkip(data,1); - for (o=1; otif->tif_dir.td_samplesperpixel; o++) - { - JPEGFixupTagsSubsamplingSkip(data,1); - if (!JPEGFixupTagsSubsamplingReadByte(data,&p)) - return(0); - if (p!=0x11) - { - TIFFWarningExt(data->tif->tif_clientdata,module, - "Subsampling values inside JPEG compressed data have no TIFF equivalent, auto-correction of TIFF subsampling values failed"); - return(1); - } - JPEGFixupTagsSubsamplingSkip(data,1); - } - if (((ph!=1)&&(ph!=2)&&(ph!=4))||((pv!=1)&&(pv!=2)&&(pv!=4))) - { - TIFFWarningExt(data->tif->tif_clientdata,module, - "Subsampling values inside JPEG compressed data have no TIFF equivalent, auto-correction of TIFF subsampling values failed"); - return(1); - } - if ((ph!=data->tif->tif_dir.td_ycbcrsubsampling[0])||(pv!=data->tif->tif_dir.td_ycbcrsubsampling[1])) - { - TIFFWarningExt(data->tif->tif_clientdata,module, - "Auto-corrected former TIFF subsampling values [%d,%d] to match subsampling values inside JPEG compressed data [%d,%d]", - (int)data->tif->tif_dir.td_ycbcrsubsampling[0], - (int)data->tif->tif_dir.td_ycbcrsubsampling[1], - (int)ph,(int)pv); - data->tif->tif_dir.td_ycbcrsubsampling[0]=ph; - data->tif->tif_dir.td_ycbcrsubsampling[1]=pv; - } - } - return(1); - default: - return(0); - } - } -} - -static int -JPEGFixupTagsSubsamplingReadByte(struct JPEGFixupTagsSubsamplingData* data, uint8* result) -{ - if (data->bufferbytesleft==0) - { - uint32 m; - if (data->filebytesleft==0) - return(0); - if (!data->filepositioned) - { - TIFFSeekFile(data->tif,data->fileoffset,SEEK_SET); - data->filepositioned=1; - } - m=data->buffersize; - if ((uint64)m>data->filebytesleft) - m=(uint32)data->filebytesleft; - assert(m<0x80000000UL); - if (TIFFReadFile(data->tif,data->buffer,(tmsize_t)m)!=(tmsize_t)m) - return(0); - data->buffercurrentbyte=data->buffer; - data->bufferbytesleft=m; - data->fileoffset+=m; - data->filebytesleft-=m; - } - *result=*data->buffercurrentbyte; - data->buffercurrentbyte++; - data->bufferbytesleft--; - return(1); -} - -static int -JPEGFixupTagsSubsamplingReadWord(struct JPEGFixupTagsSubsamplingData* data, uint16* result) -{ - uint8 ma; - uint8 mb; - if (!JPEGFixupTagsSubsamplingReadByte(data,&ma)) - return(0); - if (!JPEGFixupTagsSubsamplingReadByte(data,&mb)) - return(0); - *result=(ma<<8)|mb; - return(1); -} - -static void -JPEGFixupTagsSubsamplingSkip(struct JPEGFixupTagsSubsamplingData* data, uint16 skiplength) -{ - if ((uint32)skiplength<=data->bufferbytesleft) - { - data->buffercurrentbyte+=skiplength; - data->bufferbytesleft-=skiplength; - } - else - { - uint16 m; - m=skiplength-data->bufferbytesleft; - if (m<=data->filebytesleft) - { - data->bufferbytesleft=0; - data->fileoffset+=m; - data->filebytesleft-=m; - data->filepositioned=0; - } - else - { - data->bufferbytesleft=0; - data->filebytesleft=0; - } - } -} - -#endif - - -static int -JPEGSetupDecode(TIFF* tif) -{ - JPEGState* sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - -#if defined(JPEG_DUAL_MODE_8_12) && !defined(TIFFInitJPEG) - if( tif->tif_dir.td_bitspersample == 12 ) - return TIFFReInitJPEG_12( tif, COMPRESSION_JPEG, 0 ); -#endif - - JPEGInitializeLibJPEG( tif, TRUE ); - - assert(sp != NULL); - assert(sp->cinfo.comm.is_decompressor); - - /* Read JPEGTables if it is present */ - if (TIFFFieldSet(tif,FIELD_JPEGTABLES)) { - TIFFjpeg_tables_src(sp, tif); - if(TIFFjpeg_read_header(sp,FALSE) != JPEG_HEADER_TABLES_ONLY) { - TIFFErrorExt(tif->tif_clientdata, "JPEGSetupDecode", "Bogus JPEGTables field"); - return (0); - } - } - - /* Grab parameters that are same for all strips/tiles */ - sp->photometric = td->td_photometric; - switch (sp->photometric) { - case PHOTOMETRIC_YCBCR: - sp->h_sampling = td->td_ycbcrsubsampling[0]; - sp->v_sampling = td->td_ycbcrsubsampling[1]; - break; - default: - /* TIFF 6.0 forbids subsampling of all other color spaces */ - sp->h_sampling = 1; - sp->v_sampling = 1; - break; - } - - /* Set up for reading normal data */ - TIFFjpeg_data_src(sp, tif); - tif->tif_postdecode = _TIFFNoPostDecode; /* override byte swapping */ - return (1); -} - -/* - * Set up for decoding a strip or tile. - */ -static int -JPEGPreDecode(TIFF* tif, uint16 s) -{ - JPEGState *sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - static const char module[] = "JPEGPreDecode"; - uint32 segment_width, segment_height; - int downsampled_output; - int ci; - - assert(sp != NULL); - - if (sp->cinfo.comm.is_decompressor == 0) - { - tif->tif_setupdecode( tif ); - } - - assert(sp->cinfo.comm.is_decompressor); - /* - * Reset decoder state from any previous strip/tile, - * in case application didn't read the whole strip. - */ - if (!TIFFjpeg_abort(sp)) - return (0); - /* - * Read the header for this strip/tile. - */ - - if (TIFFjpeg_read_header(sp, TRUE) != JPEG_HEADER_OK) - return (0); - - tif->tif_rawcp = (uint8*) sp->src.next_input_byte; - tif->tif_rawcc = sp->src.bytes_in_buffer; - - /* - * Check image parameters and set decompression parameters. - */ - segment_width = td->td_imagewidth; - segment_height = td->td_imagelength - tif->tif_row; - if (isTiled(tif)) { - segment_width = td->td_tilewidth; - segment_height = td->td_tilelength; - sp->bytesperline = TIFFTileRowSize(tif); - } else { - if (segment_height > td->td_rowsperstrip) - segment_height = td->td_rowsperstrip; - sp->bytesperline = TIFFScanlineSize(tif); - } - if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { - /* - * For PC 2, scale down the expected strip/tile size - * to match a downsampled component - */ - segment_width = TIFFhowmany_32(segment_width, sp->h_sampling); - segment_height = TIFFhowmany_32(segment_height, sp->v_sampling); - } - if (sp->cinfo.d.image_width < segment_width || - sp->cinfo.d.image_height < segment_height) { - TIFFWarningExt(tif->tif_clientdata, module, - "Improper JPEG strip/tile size, " - "expected %dx%d, got %dx%d", - segment_width, segment_height, - sp->cinfo.d.image_width, - sp->cinfo.d.image_height); - } - if (sp->cinfo.d.image_width > segment_width || - sp->cinfo.d.image_height > segment_height) { - /* - * This case could be dangerous, if the strip or tile size has - * been reported as less than the amount of data jpeg will - * return, some potential security issues arise. Catch this - * case and error out. - */ - TIFFErrorExt(tif->tif_clientdata, module, - "JPEG strip/tile size exceeds expected dimensions," - " expected %dx%d, got %dx%d", - segment_width, segment_height, - sp->cinfo.d.image_width, sp->cinfo.d.image_height); - return (0); - } - if (sp->cinfo.d.num_components != - (td->td_planarconfig == PLANARCONFIG_CONTIG ? - td->td_samplesperpixel : 1)) { - TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG component count"); - return (0); - } -#ifdef JPEG_LIB_MK1 - if (12 != td->td_bitspersample && 8 != td->td_bitspersample) { - TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG data precision"); - return (0); - } - sp->cinfo.d.data_precision = td->td_bitspersample; - sp->cinfo.d.bits_in_jsample = td->td_bitspersample; -#else - if (sp->cinfo.d.data_precision != td->td_bitspersample) { - TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG data precision"); - return (0); - } -#endif - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - /* Component 0 should have expected sampling factors */ - if (sp->cinfo.d.comp_info[0].h_samp_factor != sp->h_sampling || - sp->cinfo.d.comp_info[0].v_samp_factor != sp->v_sampling) { - TIFFErrorExt(tif->tif_clientdata, module, - "Improper JPEG sampling factors %d,%d\n" - "Apparently should be %d,%d.", - sp->cinfo.d.comp_info[0].h_samp_factor, - sp->cinfo.d.comp_info[0].v_samp_factor, - sp->h_sampling, sp->v_sampling); - return (0); - } - /* Rest should have sampling factors 1,1 */ - for (ci = 1; ci < sp->cinfo.d.num_components; ci++) { - if (sp->cinfo.d.comp_info[ci].h_samp_factor != 1 || - sp->cinfo.d.comp_info[ci].v_samp_factor != 1) { - TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG sampling factors"); - return (0); - } - } - } else { - /* PC 2's single component should have sampling factors 1,1 */ - if (sp->cinfo.d.comp_info[0].h_samp_factor != 1 || - sp->cinfo.d.comp_info[0].v_samp_factor != 1) { - TIFFErrorExt(tif->tif_clientdata, module, "Improper JPEG sampling factors"); - return (0); - } - } - downsampled_output = FALSE; - if (td->td_planarconfig == PLANARCONFIG_CONTIG && - sp->photometric == PHOTOMETRIC_YCBCR && - sp->jpegcolormode == JPEGCOLORMODE_RGB) { - /* Convert YCbCr to RGB */ - sp->cinfo.d.jpeg_color_space = JCS_YCbCr; - sp->cinfo.d.out_color_space = JCS_RGB; - } else { - /* Suppress colorspace handling */ - sp->cinfo.d.jpeg_color_space = JCS_UNKNOWN; - sp->cinfo.d.out_color_space = JCS_UNKNOWN; - if (td->td_planarconfig == PLANARCONFIG_CONTIG && - (sp->h_sampling != 1 || sp->v_sampling != 1)) - downsampled_output = TRUE; - /* XXX what about up-sampling? */ - } - if (downsampled_output) { - /* Need to use raw-data interface to libjpeg */ - sp->cinfo.d.raw_data_out = TRUE; -#if JPEG_LIB_VERSION >= 70 - sp->cinfo.d.do_fancy_upsampling = FALSE; -#endif /* JPEG_LIB_VERSION >= 70 */ - tif->tif_decoderow = DecodeRowError; - tif->tif_decodestrip = JPEGDecodeRaw; - tif->tif_decodetile = JPEGDecodeRaw; - } else { - /* Use normal interface to libjpeg */ - sp->cinfo.d.raw_data_out = FALSE; - tif->tif_decoderow = JPEGDecode; - tif->tif_decodestrip = JPEGDecode; - tif->tif_decodetile = JPEGDecode; - } - /* Start JPEG decompressor */ - if (!TIFFjpeg_start_decompress(sp)) - return (0); - /* Allocate downsampled-data buffers if needed */ - if (downsampled_output) { - if (!alloc_downsampled_buffers(tif, sp->cinfo.d.comp_info, - sp->cinfo.d.num_components)) - return (0); - sp->scancount = DCTSIZE; /* mark buffer empty */ - } - return (1); -} - -/* - * Decode a chunk of pixels. - * "Standard" case: returned data is not downsampled. - */ -/*ARGSUSED*/ static int -JPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - JPEGState *sp = JState(tif); - tmsize_t nrows; - (void) s; - - /* - ** Update available information, buffer may have been refilled - ** between decode requests - */ - sp->src.next_input_byte = (const JOCTET*) tif->tif_rawcp; - sp->src.bytes_in_buffer = (size_t) tif->tif_rawcc; - - if( sp->bytesperline == 0 ) - return 0; - - nrows = cc / sp->bytesperline; - if (cc % sp->bytesperline) - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline not read"); - - if( nrows > (tmsize_t) sp->cinfo.d.image_height ) - nrows = sp->cinfo.d.image_height; - - /* data is expected to be read in multiples of a scanline */ - if (nrows) - { - JSAMPROW line_work_buf = NULL; - - /* - * For 6B, only use temporary buffer for 12 bit imagery. - * For Mk1 always use it. - */ -#if !defined(JPEG_LIB_MK1) - if( sp->cinfo.d.data_precision == 12 ) -#endif - { - line_work_buf = (JSAMPROW) - _TIFFmalloc(sizeof(short) * sp->cinfo.d.output_width - * sp->cinfo.d.num_components ); - } - - do { - if( line_work_buf != NULL ) - { - /* - * In the MK1 case, we aways read into a 16bit buffer, and then - * pack down to 12bit or 8bit. In 6B case we only read into 16 - * bit buffer for 12bit data, which we need to repack. - */ - if (TIFFjpeg_read_scanlines(sp, &line_work_buf, 1) != 1) - return (0); - - if( sp->cinfo.d.data_precision == 12 ) - { - int value_pairs = (sp->cinfo.d.output_width - * sp->cinfo.d.num_components) / 2; - int iPair; - - for( iPair = 0; iPair < value_pairs; iPair++ ) - { - unsigned char *out_ptr = - ((unsigned char *) buf) + iPair * 3; - JSAMPLE *in_ptr = line_work_buf + iPair * 2; - - out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; - out_ptr[1] = ((in_ptr[0] & 0xf) << 4) - | ((in_ptr[1] & 0xf00) >> 8); - out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); - } - } - else if( sp->cinfo.d.data_precision == 8 ) - { - int value_count = (sp->cinfo.d.output_width - * sp->cinfo.d.num_components); - int iValue; - - for( iValue = 0; iValue < value_count; iValue++ ) - { - ((unsigned char *) buf)[iValue] = - line_work_buf[iValue] & 0xff; - } - } - } - else - { - /* - * In the libjpeg6b 8bit case. We read directly into the - * TIFF buffer. - */ - JSAMPROW bufptr = (JSAMPROW)buf; - - if (TIFFjpeg_read_scanlines(sp, &bufptr, 1) != 1) - return (0); - } - - ++tif->tif_row; - buf += sp->bytesperline; - cc -= sp->bytesperline; - } while (--nrows > 0); - - if( line_work_buf != NULL ) - _TIFFfree( line_work_buf ); - } - - /* Update information on consumed data */ - tif->tif_rawcp = (uint8*) sp->src.next_input_byte; - tif->tif_rawcc = sp->src.bytes_in_buffer; - - /* Close down the decompressor if we've finished the strip or tile. */ - return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height - || TIFFjpeg_finish_decompress(sp); -} - -/*ARGSUSED*/ static int -DecodeRowError(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) - -{ - (void) buf; - (void) cc; - (void) s; - - TIFFErrorExt(tif->tif_clientdata, "TIFFReadScanline", - "scanline oriented access is not supported for downsampled JPEG compressed images, consider enabling TIFF_JPEGCOLORMODE as JPEGCOLORMODE_RGB." ); - return 0; -} - -/* - * Decode a chunk of pixels. - * Returned data is downsampled per sampling factors. - */ -/*ARGSUSED*/ static int -JPEGDecodeRaw(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - JPEGState *sp = JState(tif); - tmsize_t nrows; - (void) s; - - /* data is expected to be read in multiples of a scanline */ - if ( (nrows = sp->cinfo.d.image_height) ) { - - /* Cb,Cr both have sampling factors 1, so this is correct */ - JDIMENSION clumps_per_line = sp->cinfo.d.comp_info[1].downsampled_width; - int samples_per_clump = sp->samplesperclump; - -#if defined(JPEG_LIB_MK1_OR_12BIT) - unsigned short* tmpbuf = _TIFFmalloc(sizeof(unsigned short) * - sp->cinfo.d.output_width * - sp->cinfo.d.num_components); - if(tmpbuf==NULL) { - TIFFErrorExt(tif->tif_clientdata, "JPEGDecodeRaw", - "Out of memory"); - return 0; - } -#endif - - do { - jpeg_component_info *compptr; - int ci, clumpoffset; - - if( cc < sp->bytesperline ) { - TIFFErrorExt(tif->tif_clientdata, "JPEGDecodeRaw", - "application buffer not large enough for all data."); - return 0; - } - - /* Reload downsampled-data buffer if needed */ - if (sp->scancount >= DCTSIZE) { - int n = sp->cinfo.d.max_v_samp_factor * DCTSIZE; - if (TIFFjpeg_read_raw_data(sp, sp->ds_buffer, n) != n) - return (0); - sp->scancount = 0; - } - /* - * Fastest way to unseparate data is to make one pass - * over the scanline for each row of each component. - */ - clumpoffset = 0; /* first sample in clump */ - for (ci = 0, compptr = sp->cinfo.d.comp_info; - ci < sp->cinfo.d.num_components; - ci++, compptr++) { - int hsamp = compptr->h_samp_factor; - int vsamp = compptr->v_samp_factor; - int ypos; - - for (ypos = 0; ypos < vsamp; ypos++) { - JSAMPLE *inptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; - JDIMENSION nclump; -#if defined(JPEG_LIB_MK1_OR_12BIT) - JSAMPLE *outptr = (JSAMPLE*)tmpbuf + clumpoffset; -#else - JSAMPLE *outptr = (JSAMPLE*)buf + clumpoffset; - if (cc < (tmsize_t) (clumpoffset + samples_per_clump*(clumps_per_line-1) + hsamp)) { - TIFFErrorExt(tif->tif_clientdata, "JPEGDecodeRaw", - "application buffer not large enough for all data, possible subsampling issue"); - return 0; - } -#endif - - if (hsamp == 1) { - /* fast path for at least Cb and Cr */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - outptr[0] = *inptr++; - outptr += samples_per_clump; - } - } else { - int xpos; - - /* general case */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - for (xpos = 0; xpos < hsamp; xpos++) - outptr[xpos] = *inptr++; - outptr += samples_per_clump; - } - } - clumpoffset += hsamp; - } - } - -#if defined(JPEG_LIB_MK1_OR_12BIT) - { - if (sp->cinfo.d.data_precision == 8) - { - int i=0; - int len = sp->cinfo.d.output_width * sp->cinfo.d.num_components; - for (i=0; icinfo.d.output_width - * sp->cinfo.d.num_components) / 2; - int iPair; - for( iPair = 0; iPair < value_pairs; iPair++ ) - { - unsigned char *out_ptr = ((unsigned char *) buf) + iPair * 3; - JSAMPLE *in_ptr = (JSAMPLE *) (tmpbuf + iPair * 2); - out_ptr[0] = (in_ptr[0] & 0xff0) >> 4; - out_ptr[1] = ((in_ptr[0] & 0xf) << 4) - | ((in_ptr[1] & 0xf00) >> 8); - out_ptr[2] = ((in_ptr[1] & 0xff) >> 0); - } - } - } -#endif - - sp->scancount ++; - tif->tif_row += sp->v_sampling; - - buf += sp->bytesperline; - cc -= sp->bytesperline; - - nrows -= sp->v_sampling; - } while (nrows > 0); - -#if defined(JPEG_LIB_MK1_OR_12BIT) - _TIFFfree(tmpbuf); -#endif - - } - - /* Close down the decompressor if done. */ - return sp->cinfo.d.output_scanline < sp->cinfo.d.output_height - || TIFFjpeg_finish_decompress(sp); -} - - -/* - * JPEG Encoding. - */ - -static void -unsuppress_quant_table (JPEGState* sp, int tblno) -{ - JQUANT_TBL* qtbl; - - if ((qtbl = sp->cinfo.c.quant_tbl_ptrs[tblno]) != NULL) - qtbl->sent_table = FALSE; -} - -static void -suppress_quant_table (JPEGState* sp, int tblno) -{ - JQUANT_TBL* qtbl; - - if ((qtbl = sp->cinfo.c.quant_tbl_ptrs[tblno]) != NULL) - qtbl->sent_table = TRUE; -} - -static void -unsuppress_huff_table (JPEGState* sp, int tblno) -{ - JHUFF_TBL* htbl; - - if ((htbl = sp->cinfo.c.dc_huff_tbl_ptrs[tblno]) != NULL) - htbl->sent_table = FALSE; - if ((htbl = sp->cinfo.c.ac_huff_tbl_ptrs[tblno]) != NULL) - htbl->sent_table = FALSE; -} - -static void -suppress_huff_table (JPEGState* sp, int tblno) -{ - JHUFF_TBL* htbl; - - if ((htbl = sp->cinfo.c.dc_huff_tbl_ptrs[tblno]) != NULL) - htbl->sent_table = TRUE; - if ((htbl = sp->cinfo.c.ac_huff_tbl_ptrs[tblno]) != NULL) - htbl->sent_table = TRUE; -} - -static int -prepare_JPEGTables(TIFF* tif) -{ - JPEGState* sp = JState(tif); - - /* Initialize quant tables for current quality setting */ - if (!TIFFjpeg_set_quality(sp, sp->jpegquality, FALSE)) - return (0); - /* Mark only the tables we want for output */ - /* NB: chrominance tables are currently used only with YCbCr */ - if (!TIFFjpeg_suppress_tables(sp, TRUE)) - return (0); - if (sp->jpegtablesmode & JPEGTABLESMODE_QUANT) { - unsuppress_quant_table(sp, 0); - if (sp->photometric == PHOTOMETRIC_YCBCR) - unsuppress_quant_table(sp, 1); - } - if (sp->jpegtablesmode & JPEGTABLESMODE_HUFF) { - unsuppress_huff_table(sp, 0); - if (sp->photometric == PHOTOMETRIC_YCBCR) - unsuppress_huff_table(sp, 1); - } - /* Direct libjpeg output into jpegtables */ - if (!TIFFjpeg_tables_dest(sp, tif)) - return (0); - /* Emit tables-only datastream */ - if (!TIFFjpeg_write_tables(sp)) - return (0); - - return (1); -} - -static int -JPEGSetupEncode(TIFF* tif) -{ - JPEGState* sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - static const char module[] = "JPEGSetupEncode"; - -#if defined(JPEG_DUAL_MODE_8_12) && !defined(TIFFInitJPEG) - if( tif->tif_dir.td_bitspersample == 12 ) - return TIFFReInitJPEG_12( tif, COMPRESSION_JPEG, 1 ); -#endif - - JPEGInitializeLibJPEG( tif, FALSE ); - - assert(sp != NULL); - assert(!sp->cinfo.comm.is_decompressor); - - sp->photometric = td->td_photometric; - - /* - * Initialize all JPEG parameters to default values. - * Note that jpeg_set_defaults needs legal values for - * in_color_space and input_components. - */ - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - sp->cinfo.c.input_components = td->td_samplesperpixel; - if (sp->photometric == PHOTOMETRIC_YCBCR) { - if (sp->jpegcolormode == JPEGCOLORMODE_RGB) { - sp->cinfo.c.in_color_space = JCS_RGB; - } else { - sp->cinfo.c.in_color_space = JCS_YCbCr; - } - } else { - if ((td->td_photometric == PHOTOMETRIC_MINISWHITE || td->td_photometric == PHOTOMETRIC_MINISBLACK) && td->td_samplesperpixel == 1) - sp->cinfo.c.in_color_space = JCS_GRAYSCALE; - else if (td->td_photometric == PHOTOMETRIC_RGB && td->td_samplesperpixel == 3) - sp->cinfo.c.in_color_space = JCS_RGB; - else if (td->td_photometric == PHOTOMETRIC_SEPARATED && td->td_samplesperpixel == 4) - sp->cinfo.c.in_color_space = JCS_CMYK; - else - sp->cinfo.c.in_color_space = JCS_UNKNOWN; - } - } else { - sp->cinfo.c.input_components = 1; - sp->cinfo.c.in_color_space = JCS_UNKNOWN; - } - if (!TIFFjpeg_set_defaults(sp)) - return (0); - /* Set per-file parameters */ - switch (sp->photometric) { - case PHOTOMETRIC_YCBCR: - sp->h_sampling = td->td_ycbcrsubsampling[0]; - sp->v_sampling = td->td_ycbcrsubsampling[1]; - /* - * A ReferenceBlackWhite field *must* be present since the - * default value is inappropriate for YCbCr. Fill in the - * proper value if application didn't set it. - */ - { - float *ref; - if (!TIFFGetField(tif, TIFFTAG_REFERENCEBLACKWHITE, - &ref)) { - float refbw[6]; - long top = 1L << td->td_bitspersample; - refbw[0] = 0; - refbw[1] = (float)(top-1L); - refbw[2] = (float)(top>>1); - refbw[3] = refbw[1]; - refbw[4] = refbw[2]; - refbw[5] = refbw[1]; - TIFFSetField(tif, TIFFTAG_REFERENCEBLACKWHITE, - refbw); - } - } - break; - case PHOTOMETRIC_PALETTE: /* disallowed by Tech Note */ - case PHOTOMETRIC_MASK: - TIFFErrorExt(tif->tif_clientdata, module, - "PhotometricInterpretation %d not allowed for JPEG", - (int) sp->photometric); - return (0); - default: - /* TIFF 6.0 forbids subsampling of all other color spaces */ - sp->h_sampling = 1; - sp->v_sampling = 1; - break; - } - - /* Verify miscellaneous parameters */ - - /* - * This would need work if libtiff ever supports different - * depths for different components, or if libjpeg ever supports - * run-time selection of depth. Neither is imminent. - */ -#ifdef JPEG_LIB_MK1 - /* BITS_IN_JSAMPLE now permits 8 and 12 --- dgilbert */ - if (td->td_bitspersample != 8 && td->td_bitspersample != 12) -#else - if (td->td_bitspersample != BITS_IN_JSAMPLE ) -#endif - { - TIFFErrorExt(tif->tif_clientdata, module, "BitsPerSample %d not allowed for JPEG", - (int) td->td_bitspersample); - return (0); - } - sp->cinfo.c.data_precision = td->td_bitspersample; -#ifdef JPEG_LIB_MK1 - sp->cinfo.c.bits_in_jsample = td->td_bitspersample; -#endif - if (isTiled(tif)) { - if ((td->td_tilelength % (sp->v_sampling * DCTSIZE)) != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "JPEG tile height must be multiple of %d", - sp->v_sampling * DCTSIZE); - return (0); - } - if ((td->td_tilewidth % (sp->h_sampling * DCTSIZE)) != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "JPEG tile width must be multiple of %d", - sp->h_sampling * DCTSIZE); - return (0); - } - } else { - if (td->td_rowsperstrip < td->td_imagelength && - (td->td_rowsperstrip % (sp->v_sampling * DCTSIZE)) != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "RowsPerStrip must be multiple of %d for JPEG", - sp->v_sampling * DCTSIZE); - return (0); - } - } - - /* Create a JPEGTables field if appropriate */ - if (sp->jpegtablesmode & (JPEGTABLESMODE_QUANT|JPEGTABLESMODE_HUFF)) { - if( sp->jpegtables == NULL - || memcmp(sp->jpegtables,"\0\0\0\0\0\0\0\0\0",8) == 0 ) - { - if (!prepare_JPEGTables(tif)) - return (0); - /* Mark the field present */ - /* Can't use TIFFSetField since BEENWRITING is already set! */ - tif->tif_flags |= TIFF_DIRTYDIRECT; - TIFFSetFieldBit(tif, FIELD_JPEGTABLES); - } - } else { - /* We do not support application-supplied JPEGTables, */ - /* so mark the field not present */ - TIFFClrFieldBit(tif, FIELD_JPEGTABLES); - } - - /* Direct libjpeg output to libtiff's output buffer */ - TIFFjpeg_data_dest(sp, tif); - - return (1); -} - -/* - * Set encoding state at the start of a strip or tile. - */ -static int -JPEGPreEncode(TIFF* tif, uint16 s) -{ - JPEGState *sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - static const char module[] = "JPEGPreEncode"; - uint32 segment_width, segment_height; - int downsampled_input; - - assert(sp != NULL); - - if (sp->cinfo.comm.is_decompressor == 1) - { - tif->tif_setupencode( tif ); - } - - assert(!sp->cinfo.comm.is_decompressor); - /* - * Set encoding parameters for this strip/tile. - */ - if (isTiled(tif)) { - segment_width = td->td_tilewidth; - segment_height = td->td_tilelength; - sp->bytesperline = TIFFTileRowSize(tif); - } else { - segment_width = td->td_imagewidth; - segment_height = td->td_imagelength - tif->tif_row; - if (segment_height > td->td_rowsperstrip) - segment_height = td->td_rowsperstrip; - sp->bytesperline = TIFFScanlineSize(tif); - } - if (td->td_planarconfig == PLANARCONFIG_SEPARATE && s > 0) { - /* for PC 2, scale down the strip/tile size - * to match a downsampled component - */ - segment_width = TIFFhowmany_32(segment_width, sp->h_sampling); - segment_height = TIFFhowmany_32(segment_height, sp->v_sampling); - } - if (segment_width > 65535 || segment_height > 65535) { - TIFFErrorExt(tif->tif_clientdata, module, "Strip/tile too large for JPEG"); - return (0); - } - sp->cinfo.c.image_width = segment_width; - sp->cinfo.c.image_height = segment_height; - downsampled_input = FALSE; - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - sp->cinfo.c.input_components = td->td_samplesperpixel; - if (sp->photometric == PHOTOMETRIC_YCBCR) { - if (sp->jpegcolormode != JPEGCOLORMODE_RGB) { - if (sp->h_sampling != 1 || sp->v_sampling != 1) - downsampled_input = TRUE; - } - if (!TIFFjpeg_set_colorspace(sp, JCS_YCbCr)) - return (0); - /* - * Set Y sampling factors; - * we assume jpeg_set_colorspace() set the rest to 1 - */ - sp->cinfo.c.comp_info[0].h_samp_factor = sp->h_sampling; - sp->cinfo.c.comp_info[0].v_samp_factor = sp->v_sampling; - } else { - if (!TIFFjpeg_set_colorspace(sp, sp->cinfo.c.in_color_space)) - return (0); - /* jpeg_set_colorspace set all sampling factors to 1 */ - } - } else { - if (!TIFFjpeg_set_colorspace(sp, JCS_UNKNOWN)) - return (0); - sp->cinfo.c.comp_info[0].component_id = s; - /* jpeg_set_colorspace() set sampling factors to 1 */ - if (sp->photometric == PHOTOMETRIC_YCBCR && s > 0) { - sp->cinfo.c.comp_info[0].quant_tbl_no = 1; - sp->cinfo.c.comp_info[0].dc_tbl_no = 1; - sp->cinfo.c.comp_info[0].ac_tbl_no = 1; - } - } - /* ensure libjpeg won't write any extraneous markers */ - sp->cinfo.c.write_JFIF_header = FALSE; - sp->cinfo.c.write_Adobe_marker = FALSE; - /* set up table handling correctly */ - /* calling TIFFjpeg_set_quality() causes quantization tables to be flagged */ - /* as being to be emitted, which we don't want in the JPEGTABLESMODE_QUANT */ - /* mode, so we must manually suppress them. However TIFFjpeg_set_quality() */ - /* should really be called when dealing with files with directories with */ - /* mixed qualities. see http://trac.osgeo.org/gdal/ticket/3539 */ - if (!TIFFjpeg_set_quality(sp, sp->jpegquality, FALSE)) - return (0); - if (sp->jpegtablesmode & JPEGTABLESMODE_QUANT) { - suppress_quant_table(sp, 0); - suppress_quant_table(sp, 1); - } - else { - unsuppress_quant_table(sp, 0); - unsuppress_quant_table(sp, 1); - } - if (sp->jpegtablesmode & JPEGTABLESMODE_HUFF) - { - /* Explicit suppression is only needed if we did not go through the */ - /* prepare_JPEGTables() code path, which may be the case if updating */ - /* an existing file */ - suppress_huff_table(sp, 0); - suppress_huff_table(sp, 1); - sp->cinfo.c.optimize_coding = FALSE; - } - else - sp->cinfo.c.optimize_coding = TRUE; - if (downsampled_input) { - /* Need to use raw-data interface to libjpeg */ - sp->cinfo.c.raw_data_in = TRUE; - tif->tif_encoderow = JPEGEncodeRaw; - tif->tif_encodestrip = JPEGEncodeRaw; - tif->tif_encodetile = JPEGEncodeRaw; - } else { - /* Use normal interface to libjpeg */ - sp->cinfo.c.raw_data_in = FALSE; - tif->tif_encoderow = JPEGEncode; - tif->tif_encodestrip = JPEGEncode; - tif->tif_encodetile = JPEGEncode; - } - /* Start JPEG compressor */ - if (!TIFFjpeg_start_compress(sp, FALSE)) - return (0); - /* Allocate downsampled-data buffers if needed */ - if (downsampled_input) { - if (!alloc_downsampled_buffers(tif, sp->cinfo.c.comp_info, - sp->cinfo.c.num_components)) - return (0); - } - sp->scancount = 0; - - return (1); -} - -/* - * Encode a chunk of pixels. - * "Standard" case: incoming data is not downsampled. - */ -static int -JPEGEncode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - JPEGState *sp = JState(tif); - tmsize_t nrows; - JSAMPROW bufptr[1]; - short *line16 = NULL; - int line16_count = 0; - - (void) s; - assert(sp != NULL); - /* data is expected to be supplied in multiples of a scanline */ - nrows = cc / sp->bytesperline; - if (cc % sp->bytesperline) - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, - "fractional scanline discarded"); - - /* The last strip will be limited to image size */ - if( !isTiled(tif) && tif->tif_row+nrows > tif->tif_dir.td_imagelength ) - nrows = tif->tif_dir.td_imagelength - tif->tif_row; - - if( sp->cinfo.c.data_precision == 12 ) - { - line16_count = (sp->bytesperline * 2) / 3; - line16 = (short *) _TIFFmalloc(sizeof(short) * line16_count); - // FIXME: undiagnosed malloc failure - } - - while (nrows-- > 0) { - - if( sp->cinfo.c.data_precision == 12 ) - { - - int value_pairs = line16_count / 2; - int iPair; - - bufptr[0] = (JSAMPROW) line16; - - for( iPair = 0; iPair < value_pairs; iPair++ ) - { - unsigned char *in_ptr = - ((unsigned char *) buf) + iPair * 3; - JSAMPLE *out_ptr = (JSAMPLE *) (line16 + iPair * 2); - - out_ptr[0] = (in_ptr[0] << 4) | ((in_ptr[1] & 0xf0) >> 4); - out_ptr[1] = ((in_ptr[1] & 0x0f) << 8) | in_ptr[2]; - } - } - else - { - bufptr[0] = (JSAMPROW) buf; - } - if (TIFFjpeg_write_scanlines(sp, bufptr, 1) != 1) - return (0); - if (nrows > 0) - tif->tif_row++; - buf += sp->bytesperline; - } - - if( sp->cinfo.c.data_precision == 12 ) - { - _TIFFfree( line16 ); - } - - return (1); -} - -/* - * Encode a chunk of pixels. - * Incoming data is expected to be downsampled per sampling factors. - */ -static int -JPEGEncodeRaw(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - JPEGState *sp = JState(tif); - JSAMPLE* inptr; - JSAMPLE* outptr; - tmsize_t nrows; - JDIMENSION clumps_per_line, nclump; - int clumpoffset, ci, xpos, ypos; - jpeg_component_info* compptr; - int samples_per_clump = sp->samplesperclump; - tmsize_t bytesperclumpline; - - (void) s; - assert(sp != NULL); - /* data is expected to be supplied in multiples of a clumpline */ - /* a clumpline is equivalent to v_sampling desubsampled scanlines */ - /* TODO: the following calculation of bytesperclumpline, should substitute calculation of sp->bytesperline, except that it is per v_sampling lines */ - bytesperclumpline = (((sp->cinfo.c.image_width+sp->h_sampling-1)/sp->h_sampling) - *(sp->h_sampling*sp->v_sampling+2)*sp->cinfo.c.data_precision+7) - /8; - - nrows = ( cc / bytesperclumpline ) * sp->v_sampling; - if (cc % bytesperclumpline) - TIFFWarningExt(tif->tif_clientdata, tif->tif_name, "fractional scanline discarded"); - - /* Cb,Cr both have sampling factors 1, so this is correct */ - clumps_per_line = sp->cinfo.c.comp_info[1].downsampled_width; - - while (nrows > 0) { - /* - * Fastest way to separate the data is to make one pass - * over the scanline for each row of each component. - */ - clumpoffset = 0; /* first sample in clump */ - for (ci = 0, compptr = sp->cinfo.c.comp_info; - ci < sp->cinfo.c.num_components; - ci++, compptr++) { - int hsamp = compptr->h_samp_factor; - int vsamp = compptr->v_samp_factor; - int padding = (int) (compptr->width_in_blocks * DCTSIZE - - clumps_per_line * hsamp); - for (ypos = 0; ypos < vsamp; ypos++) { - inptr = ((JSAMPLE*) buf) + clumpoffset; - outptr = sp->ds_buffer[ci][sp->scancount*vsamp + ypos]; - if (hsamp == 1) { - /* fast path for at least Cb and Cr */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - *outptr++ = inptr[0]; - inptr += samples_per_clump; - } - } else { - /* general case */ - for (nclump = clumps_per_line; nclump-- > 0; ) { - for (xpos = 0; xpos < hsamp; xpos++) - *outptr++ = inptr[xpos]; - inptr += samples_per_clump; - } - } - /* pad each scanline as needed */ - for (xpos = 0; xpos < padding; xpos++) { - *outptr = outptr[-1]; - outptr++; - } - clumpoffset += hsamp; - } - } - sp->scancount++; - if (sp->scancount >= DCTSIZE) { - int n = sp->cinfo.c.max_v_samp_factor * DCTSIZE; - if (TIFFjpeg_write_raw_data(sp, sp->ds_buffer, n) != n) - return (0); - sp->scancount = 0; - } - tif->tif_row += sp->v_sampling; - buf += bytesperclumpline; - nrows -= sp->v_sampling; - } - return (1); -} - -/* - * Finish up at the end of a strip or tile. - */ -static int -JPEGPostEncode(TIFF* tif) -{ - JPEGState *sp = JState(tif); - - if (sp->scancount > 0) { - /* - * Need to emit a partial bufferload of downsampled data. - * Pad the data vertically. - */ - int ci, ypos, n; - jpeg_component_info* compptr; - - for (ci = 0, compptr = sp->cinfo.c.comp_info; - ci < sp->cinfo.c.num_components; - ci++, compptr++) { - int vsamp = compptr->v_samp_factor; - tmsize_t row_width = compptr->width_in_blocks * DCTSIZE - * sizeof(JSAMPLE); - for (ypos = sp->scancount * vsamp; - ypos < DCTSIZE * vsamp; ypos++) { - _TIFFmemcpy((void*)sp->ds_buffer[ci][ypos], - (void*)sp->ds_buffer[ci][ypos-1], - row_width); - - } - } - n = sp->cinfo.c.max_v_samp_factor * DCTSIZE; - if (TIFFjpeg_write_raw_data(sp, sp->ds_buffer, n) != n) - return (0); - } - - return (TIFFjpeg_finish_compress(JState(tif))); -} - -static void -JPEGCleanup(TIFF* tif) -{ - JPEGState *sp = JState(tif); - - assert(sp != 0); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - tif->tif_tagmethods.printdir = sp->printdir; - - if( sp != NULL ) { - if( sp->cinfo_initialized ) - TIFFjpeg_destroy(sp); /* release libjpeg resources */ - if (sp->jpegtables) /* tag value */ - _TIFFfree(sp->jpegtables); - } - _TIFFfree(tif->tif_data); /* release local state */ - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -static void -JPEGResetUpsampled( TIFF* tif ) -{ - JPEGState* sp = JState(tif); - TIFFDirectory* td = &tif->tif_dir; - - /* - * Mark whether returned data is up-sampled or not so TIFFStripSize - * and TIFFTileSize return values that reflect the true amount of - * data. - */ - tif->tif_flags &= ~TIFF_UPSAMPLED; - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - if (td->td_photometric == PHOTOMETRIC_YCBCR && - sp->jpegcolormode == JPEGCOLORMODE_RGB) { - tif->tif_flags |= TIFF_UPSAMPLED; - } else { -#ifdef notdef - if (td->td_ycbcrsubsampling[0] != 1 || - td->td_ycbcrsubsampling[1] != 1) - ; /* XXX what about up-sampling? */ -#endif - } - } - - /* - * Must recalculate cached tile size in case sampling state changed. - * Should we really be doing this now if image size isn't set? - */ - if( tif->tif_tilesize > 0 ) - tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tmsize_t)(-1); - if( tif->tif_scanlinesize > 0 ) - tif->tif_scanlinesize = TIFFScanlineSize(tif); -} - -static int -JPEGVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - JPEGState* sp = JState(tif); - const TIFFField* fip; - uint32 v32; - - assert(sp != NULL); - - switch (tag) { - case TIFFTAG_JPEGTABLES: - v32 = (uint32) va_arg(ap, uint32); - if (v32 == 0) { - /* XXX */ - return (0); - } - _TIFFsetByteArray(&sp->jpegtables, va_arg(ap, void*), - (long) v32); - sp->jpegtables_length = v32; - TIFFSetFieldBit(tif, FIELD_JPEGTABLES); - break; - case TIFFTAG_JPEGQUALITY: - sp->jpegquality = (int) va_arg(ap, int); - return (1); /* pseudo tag */ - case TIFFTAG_JPEGCOLORMODE: - sp->jpegcolormode = (int) va_arg(ap, int); - JPEGResetUpsampled( tif ); - return (1); /* pseudo tag */ - case TIFFTAG_PHOTOMETRIC: - { - int ret_value = (*sp->vsetparent)(tif, tag, ap); - JPEGResetUpsampled( tif ); - return ret_value; - } - case TIFFTAG_JPEGTABLESMODE: - sp->jpegtablesmode = (int) va_arg(ap, int); - return (1); /* pseudo tag */ - case TIFFTAG_YCBCRSUBSAMPLING: - /* mark the fact that we have a real ycbcrsubsampling! */ - sp->ycbcrsampling_fetched = 1; - /* should we be recomputing upsampling info here? */ - return (*sp->vsetparent)(tif, tag, ap); - default: - return (*sp->vsetparent)(tif, tag, ap); - } - - if ((fip = TIFFFieldWithTag(tif, tag))) { - TIFFSetFieldBit(tif, fip->field_bit); - } else { - return (0); - } - - tif->tif_flags |= TIFF_DIRTYDIRECT; - return (1); -} - -static int -JPEGVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - JPEGState* sp = JState(tif); - - assert(sp != NULL); - - switch (tag) { - case TIFFTAG_JPEGTABLES: - *va_arg(ap, uint32*) = sp->jpegtables_length; - *va_arg(ap, void**) = sp->jpegtables; - break; - case TIFFTAG_JPEGQUALITY: - *va_arg(ap, int*) = sp->jpegquality; - break; - case TIFFTAG_JPEGCOLORMODE: - *va_arg(ap, int*) = sp->jpegcolormode; - break; - case TIFFTAG_JPEGTABLESMODE: - *va_arg(ap, int*) = sp->jpegtablesmode; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return (1); -} - -static void -JPEGPrintDir(TIFF* tif, FILE* fd, long flags) -{ - JPEGState* sp = JState(tif); - - assert(sp != NULL); - (void) flags; - - if( sp != NULL ) { - if (TIFFFieldSet(tif,FIELD_JPEGTABLES)) - fprintf(fd, " JPEG Tables: (%lu bytes)\n", - (unsigned long) sp->jpegtables_length); - if (sp->printdir) - (*sp->printdir)(tif, fd, flags); - } -} - -static uint32 -JPEGDefaultStripSize(TIFF* tif, uint32 s) -{ - JPEGState* sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - - s = (*sp->defsparent)(tif, s); - if (s < td->td_imagelength) - s = TIFFroundup_32(s, td->td_ycbcrsubsampling[1] * DCTSIZE); - return (s); -} - -static void -JPEGDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) -{ - JPEGState* sp = JState(tif); - TIFFDirectory *td = &tif->tif_dir; - - (*sp->deftparent)(tif, tw, th); - *tw = TIFFroundup_32(*tw, td->td_ycbcrsubsampling[0] * DCTSIZE); - *th = TIFFroundup_32(*th, td->td_ycbcrsubsampling[1] * DCTSIZE); -} - -/* - * The JPEG library initialized used to be done in TIFFInitJPEG(), but - * now that we allow a TIFF file to be opened in update mode it is necessary - * to have some way of deciding whether compression or decompression is - * desired other than looking at tif->tif_mode. We accomplish this by - * examining {TILE/STRIP}BYTECOUNTS to see if there is a non-zero entry. - * If so, we assume decompression is desired. - * - * This is tricky, because TIFFInitJPEG() is called while the directory is - * being read, and generally speaking the BYTECOUNTS tag won't have been read - * at that point. So we try to defer jpeg library initialization till we - * do have that tag ... basically any access that might require the compressor - * or decompressor that occurs after the reading of the directory. - * - * In an ideal world compressors or decompressors would be setup - * at the point where a single tile or strip was accessed (for read or write) - * so that stuff like update of missing tiles, or replacement of tiles could - * be done. However, we aren't trying to crack that nut just yet ... - * - * NFW, Feb 3rd, 2003. - */ - -static int JPEGInitializeLibJPEG( TIFF * tif, int decompress ) -{ - JPEGState* sp = JState(tif); - - if(sp->cinfo_initialized) - { - if( !decompress && sp->cinfo.comm.is_decompressor ) - TIFFjpeg_destroy( sp ); - else if( decompress && !sp->cinfo.comm.is_decompressor ) - TIFFjpeg_destroy( sp ); - else - return 1; - - sp->cinfo_initialized = 0; - } - - /* - * Initialize libjpeg. - */ - if ( decompress ) { - if (!TIFFjpeg_create_decompress(sp)) - return (0); - } else { - if (!TIFFjpeg_create_compress(sp)) - return (0); - } - - sp->cinfo_initialized = TRUE; - - return 1; -} - -int -TIFFInitJPEG(TIFF* tif, int scheme) -{ - JPEGState* sp; - - assert(scheme == COMPRESSION_JPEG); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, jpegFields, TIFFArrayCount(jpegFields))) { - TIFFErrorExt(tif->tif_clientdata, - "TIFFInitJPEG", - "Merging JPEG codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof (JPEGState)); - - if (tif->tif_data == NULL) { - TIFFErrorExt(tif->tif_clientdata, - "TIFFInitJPEG", "No space for JPEG state block"); - return 0; - } - _TIFFmemset(tif->tif_data, 0, sizeof(JPEGState)); - - sp = JState(tif); - sp->tif = tif; /* back link */ - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = JPEGVGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = JPEGVSetField; /* hook for codec tags */ - sp->printdir = tif->tif_tagmethods.printdir; - tif->tif_tagmethods.printdir = JPEGPrintDir; /* hook for codec tags */ - - /* Default values for codec-specific fields */ - sp->jpegtables = NULL; - sp->jpegtables_length = 0; - sp->jpegquality = 75; /* Default IJG quality */ - sp->jpegcolormode = JPEGCOLORMODE_RAW; - sp->jpegtablesmode = JPEGTABLESMODE_QUANT | JPEGTABLESMODE_HUFF; - sp->ycbcrsampling_fetched = 0; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = JPEGFixupTags; - tif->tif_setupdecode = JPEGSetupDecode; - tif->tif_predecode = JPEGPreDecode; - tif->tif_decoderow = JPEGDecode; - tif->tif_decodestrip = JPEGDecode; - tif->tif_decodetile = JPEGDecode; - tif->tif_setupencode = JPEGSetupEncode; - tif->tif_preencode = JPEGPreEncode; - tif->tif_postencode = JPEGPostEncode; - tif->tif_encoderow = JPEGEncode; - tif->tif_encodestrip = JPEGEncode; - tif->tif_encodetile = JPEGEncode; - tif->tif_cleanup = JPEGCleanup; - sp->defsparent = tif->tif_defstripsize; - tif->tif_defstripsize = JPEGDefaultStripSize; - sp->deftparent = tif->tif_deftilesize; - tif->tif_deftilesize = JPEGDefaultTileSize; - tif->tif_flags |= TIFF_NOBITREV; /* no bit reversal, please */ - - sp->cinfo_initialized = FALSE; - - /* - ** Create a JPEGTables field if no directory has yet been created. - ** We do this just to ensure that sufficient space is reserved for - ** the JPEGTables field. It will be properly created the right - ** size later. - */ - if( tif->tif_diroff == 0 ) - { -#define SIZE_OF_JPEGTABLES 2000 -/* -The following line assumes incorrectly that all JPEG-in-TIFF files will have -a JPEGTABLES tag generated and causes null-filled JPEGTABLES tags to be written -when the JPEG data is placed with TIFFWriteRawStrip. The field bit should be -set, anyway, later when actual JPEGTABLES header is generated, so removing it -here hopefully is harmless. - TIFFSetFieldBit(tif, FIELD_JPEGTABLES); -*/ - sp->jpegtables_length = SIZE_OF_JPEGTABLES; - sp->jpegtables = (void *) _TIFFmalloc(sp->jpegtables_length); - // FIXME: NULL-deref after malloc failure - _TIFFmemset(sp->jpegtables, 0, SIZE_OF_JPEGTABLES); -#undef SIZE_OF_JPEGTABLES - } - - return 1; -} -#endif /* JPEG_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_jpeg_12.c b/tiff/libtiff/tif_jpeg_12.c deleted file mode 100755 index 87aaa19..0000000 --- a/tiff/libtiff/tif_jpeg_12.c +++ /dev/null @@ -1,65 +0,0 @@ - -#include "tiffiop.h" - -#if defined(JPEG_DUAL_MODE_8_12) - -# define TIFFInitJPEG TIFFInitJPEG_12 - -# include LIBJPEG_12_PATH - -# include "tif_jpeg.c" - -int TIFFReInitJPEG_12( TIFF *tif, int scheme, int is_encode ) - -{ - JPEGState* sp; - - assert(scheme == COMPRESSION_JPEG); - - sp = JState(tif); - sp->tif = tif; /* back link */ - - /* - * Override parent get/set field methods. - */ - tif->tif_tagmethods.vgetfield = JPEGVGetField; /* hook for codec tags */ - tif->tif_tagmethods.vsetfield = JPEGVSetField; /* hook for codec tags */ - tif->tif_tagmethods.printdir = JPEGPrintDir; /* hook for codec tags */ - - /* - * Install codec methods. - */ - tif->tif_fixuptags = JPEGFixupTags; - tif->tif_setupdecode = JPEGSetupDecode; - tif->tif_predecode = JPEGPreDecode; - tif->tif_decoderow = JPEGDecode; - tif->tif_decodestrip = JPEGDecode; - tif->tif_decodetile = JPEGDecode; - tif->tif_setupencode = JPEGSetupEncode; - tif->tif_preencode = JPEGPreEncode; - tif->tif_postencode = JPEGPostEncode; - tif->tif_encoderow = JPEGEncode; - tif->tif_encodestrip = JPEGEncode; - tif->tif_encodetile = JPEGEncode; - tif->tif_cleanup = JPEGCleanup; - tif->tif_defstripsize = JPEGDefaultStripSize; - tif->tif_deftilesize = JPEGDefaultTileSize; - tif->tif_flags |= TIFF_NOBITREV; /* no bit reversal, please */ - - sp->cinfo_initialized = FALSE; - - if( is_encode ) - return JPEGSetupEncode(tif); - else - return JPEGSetupDecode(tif); -} - -#endif /* defined(JPEG_DUAL_MODE_8_12) */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_luv.c b/tiff/libtiff/tif_luv.c deleted file mode 100755 index eba6c08..0000000 --- a/tiff/libtiff/tif_luv.c +++ /dev/null @@ -1,1683 +0,0 @@ -/* $Id: tif_luv.c,v 1.35 2011-04-02 20:54:09 bfriesen Exp $ */ - -/* - * Copyright (c) 1997 Greg Ward Larson - * Copyright (c) 1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler, Greg Larson and Silicon Graphics may not be used in any - * advertising or publicity relating to the software without the specific, - * prior written permission of Sam Leffler, Greg Larson and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER, GREG LARSON OR SILICON GRAPHICS BE LIABLE - * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef LOGLUV_SUPPORT - -/* - * TIFF Library. - * LogLuv compression support for high dynamic range images. - * - * Contributed by Greg Larson. - * - * LogLuv image support uses the TIFF library to store 16 or 10-bit - * log luminance values with 8 bits each of u and v or a 14-bit index. - * - * The codec can take as input and produce as output 32-bit IEEE float values - * as well as 16-bit integer values. A 16-bit luminance is interpreted - * as a sign bit followed by a 15-bit integer that is converted - * to and from a linear magnitude using the transformation: - * - * L = 2^( (Le+.5)/256 - 64 ) # real from 15-bit - * - * Le = floor( 256*(log2(L) + 64) ) # 15-bit from real - * - * The actual conversion to world luminance units in candelas per sq. meter - * requires an additional multiplier, which is stored in the TIFFTAG_STONITS. - * This value is usually set such that a reasonable exposure comes from - * clamping decoded luminances above 1 to 1 in the displayed image. - * - * The 16-bit values for u and v may be converted to real values by dividing - * each by 32768. (This allows for negative values, which aren't useful as - * far as we know, but are left in case of future improvements in human - * color vision.) - * - * Conversion from (u,v), which is actually the CIE (u',v') system for - * you color scientists, is accomplished by the following transformation: - * - * u = 4*x / (-2*x + 12*y + 3) - * v = 9*y / (-2*x + 12*y + 3) - * - * x = 9*u / (6*u - 16*v + 12) - * y = 4*v / (6*u - 16*v + 12) - * - * This process is greatly simplified by passing 32-bit IEEE floats - * for each of three CIE XYZ coordinates. The codec then takes care - * of conversion to and from LogLuv, though the application is still - * responsible for interpreting the TIFFTAG_STONITS calibration factor. - * - * By definition, a CIE XYZ vector of [1 1 1] corresponds to a neutral white - * point of (x,y)=(1/3,1/3). However, most color systems assume some other - * white point, such as D65, and an absolute color conversion to XYZ then - * to another color space with a different white point may introduce an - * unwanted color cast to the image. It is often desirable, therefore, to - * perform a white point conversion that maps the input white to [1 1 1] - * in XYZ, then record the original white point using the TIFFTAG_WHITEPOINT - * tag value. A decoder that demands absolute color calibration may use - * this white point tag to get back the original colors, but usually it - * will be ignored and the new white point will be used instead that - * matches the output color space. - * - * Pixel information is compressed into one of two basic encodings, depending - * on the setting of the compression tag, which is one of COMPRESSION_SGILOG - * or COMPRESSION_SGILOG24. For COMPRESSION_SGILOG, greyscale data is - * stored as: - * - * 1 15 - * |-+---------------| - * - * COMPRESSION_SGILOG color data is stored as: - * - * 1 15 8 8 - * |-+---------------|--------+--------| - * S Le ue ve - * - * For the 24-bit COMPRESSION_SGILOG24 color format, the data is stored as: - * - * 10 14 - * |----------|--------------| - * Le' Ce - * - * There is no sign bit in the 24-bit case, and the (u,v) chromaticity is - * encoded as an index for optimal color resolution. The 10 log bits are - * defined by the following conversions: - * - * L = 2^((Le'+.5)/64 - 12) # real from 10-bit - * - * Le' = floor( 64*(log2(L) + 12) ) # 10-bit from real - * - * The 10 bits of the smaller format may be converted into the 15 bits of - * the larger format by multiplying by 4 and adding 13314. Obviously, - * a smaller range of magnitudes is covered (about 5 orders of magnitude - * instead of 38), and the lack of a sign bit means that negative luminances - * are not allowed. (Well, they aren't allowed in the real world, either, - * but they are useful for certain types of image processing.) - * - * The desired user format is controlled by the setting the internal - * pseudo tag TIFFTAG_SGILOGDATAFMT to one of: - * SGILOGDATAFMT_FLOAT = IEEE 32-bit float XYZ values - * SGILOGDATAFMT_16BIT = 16-bit integer encodings of logL, u and v - * Raw data i/o is also possible using: - * SGILOGDATAFMT_RAW = 32-bit unsigned integer with encoded pixel - * In addition, the following decoding is provided for ease of display: - * SGILOGDATAFMT_8BIT = 8-bit default RGB gamma-corrected values - * - * For grayscale images, we provide the following data formats: - * SGILOGDATAFMT_FLOAT = IEEE 32-bit float Y values - * SGILOGDATAFMT_16BIT = 16-bit integer w/ encoded luminance - * SGILOGDATAFMT_8BIT = 8-bit gray monitor values - * - * Note that the COMPRESSION_SGILOG applies a simple run-length encoding - * scheme by separating the logL, u and v bytes for each row and applying - * a PackBits type of compression. Since the 24-bit encoding is not - * adaptive, the 32-bit color format takes less space in many cases. - * - * Further control is provided over the conversion from higher-resolution - * formats to final encoded values through the pseudo tag - * TIFFTAG_SGILOGENCODE: - * SGILOGENCODE_NODITHER = do not dither encoded values - * SGILOGENCODE_RANDITHER = apply random dithering during encoding - * - * The default value of this tag is SGILOGENCODE_NODITHER for - * COMPRESSION_SGILOG to maximize run-length encoding and - * SGILOGENCODE_RANDITHER for COMPRESSION_SGILOG24 to turn - * quantization errors into noise. - */ - -#include -#include -#include - -/* - * State block for each open TIFF - * file using LogLuv compression/decompression. - */ -typedef struct logLuvState LogLuvState; - -struct logLuvState { - int user_datafmt; /* user data format */ - int encode_meth; /* encoding method */ - int pixel_size; /* bytes per pixel */ - - uint8* tbuf; /* translation buffer */ - tmsize_t tbuflen; /* buffer length */ - void (*tfunc)(LogLuvState*, uint8*, tmsize_t); - - TIFFVSetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ -}; - -#define DecoderState(tif) ((LogLuvState*) (tif)->tif_data) -#define EncoderState(tif) ((LogLuvState*) (tif)->tif_data) - -#define SGILOGDATAFMT_UNKNOWN -1 - -#define MINRUN 4 /* minimum run length */ - -/* - * Decode a string of 16-bit gray pixels. - */ -static int -LogL16Decode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "LogL16Decode"; - LogLuvState* sp = DecoderState(tif); - int shft; - tmsize_t i; - tmsize_t npixels; - unsigned char* bp; - int16* tp; - int16 b; - tmsize_t cc; - int rc; - - assert(s == 0); - assert(sp != NULL); - - npixels = occ / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_16BIT) - tp = (int16*) op; - else { - assert(sp->tbuflen >= npixels); - tp = (int16*) sp->tbuf; - } - _TIFFmemset((void*) tp, 0, npixels*sizeof (tp[0])); - - bp = (unsigned char*) tif->tif_rawcp; - cc = tif->tif_rawcc; - /* get each byte string */ - for (shft = 2*8; (shft -= 8) >= 0; ) { - for (i = 0; i < npixels && cc > 0; ) - if (*bp >= 128) { /* run */ - rc = *bp++ + (2-128); /* TODO: potential input buffer overrun when decoding corrupt or truncated data */ - b = (int16)(*bp++ << shft); - cc -= 2; - while (rc-- && i < npixels) - tp[i++] |= b; - } else { /* non-run */ - rc = *bp++; /* nul is noop */ - while (--cc && rc-- && i < npixels) - tp[i++] |= (int16)*bp++ << shft; - } - if (i != npixels) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %I64d pixels)", - (unsigned long) tif->tif_row, - (unsigned __int64) (npixels - i)); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %llu pixels)", - (unsigned long) tif->tif_row, - (unsigned long long) (npixels - i)); -#endif - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - return (0); - } - } - (*sp->tfunc)(sp, op, npixels); - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - return (1); -} - -/* - * Decode a string of 24-bit pixels. - */ -static int -LogLuvDecode24(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "LogLuvDecode24"; - LogLuvState* sp = DecoderState(tif); - tmsize_t cc; - tmsize_t i; - tmsize_t npixels; - unsigned char* bp; - uint32* tp; - - assert(s == 0); - assert(sp != NULL); - - npixels = occ / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32 *)op; - else { - assert(sp->tbuflen >= npixels); - tp = (uint32 *) sp->tbuf; - } - /* copy to array of uint32 */ - bp = (unsigned char*) tif->tif_rawcp; - cc = tif->tif_rawcc; - for (i = 0; i < npixels && cc > 0; i++) { - tp[i] = bp[0] << 16 | bp[1] << 8 | bp[2]; - bp += 3; - cc -= 3; - } - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - if (i != npixels) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %I64d pixels)", - (unsigned long) tif->tif_row, - (unsigned __int64) (npixels - i)); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %llu pixels)", - (unsigned long) tif->tif_row, - (unsigned long long) (npixels - i)); -#endif - return (0); - } - (*sp->tfunc)(sp, op, npixels); - return (1); -} - -/* - * Decode a string of 32-bit pixels. - */ -static int -LogLuvDecode32(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "LogLuvDecode32"; - LogLuvState* sp; - int shft; - tmsize_t i; - tmsize_t npixels; - unsigned char* bp; - uint32* tp; - uint32 b; - tmsize_t cc; - int rc; - - assert(s == 0); - sp = DecoderState(tif); - assert(sp != NULL); - - npixels = occ / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32*) op; - else { - assert(sp->tbuflen >= npixels); - tp = (uint32*) sp->tbuf; - } - _TIFFmemset((void*) tp, 0, npixels*sizeof (tp[0])); - - bp = (unsigned char*) tif->tif_rawcp; - cc = tif->tif_rawcc; - /* get each byte string */ - for (shft = 4*8; (shft -= 8) >= 0; ) { - for (i = 0; i < npixels && cc > 0; ) - if (*bp >= 128) { /* run */ - rc = *bp++ + (2-128); - b = (uint32)*bp++ << shft; - cc -= 2; /* TODO: potential input buffer overrun when decoding corrupt or truncated data */ - while (rc-- && i < npixels) - tp[i++] |= b; - } else { /* non-run */ - rc = *bp++; /* nul is noop */ - while (--cc && rc-- && i < npixels) - tp[i++] |= (uint32)*bp++ << shft; - } - if (i != npixels) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %I64d pixels)", - (unsigned long) tif->tif_row, - (unsigned __int64) (npixels - i)); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at row %lu (short %llu pixels)", - (unsigned long) tif->tif_row, - (unsigned long long) (npixels - i)); -#endif - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - return (0); - } - } - (*sp->tfunc)(sp, op, npixels); - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - return (1); -} - -/* - * Decode a strip of pixels. We break it into rows to - * maintain synchrony with the encode algorithm, which - * is row by row. - */ -static int -LogLuvDecodeStrip(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - tmsize_t rowlen = TIFFScanlineSize(tif); - - assert(cc%rowlen == 0); - while (cc && (*tif->tif_decoderow)(tif, bp, rowlen, s)) - bp += rowlen, cc -= rowlen; - return (cc == 0); -} - -/* - * Decode a tile of pixels. We break it into rows to - * maintain synchrony with the encode algorithm, which - * is row by row. - */ -static int -LogLuvDecodeTile(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - tmsize_t rowlen = TIFFTileRowSize(tif); - - assert(cc%rowlen == 0); - while (cc && (*tif->tif_decoderow)(tif, bp, rowlen, s)) - bp += rowlen, cc -= rowlen; - return (cc == 0); -} - -/* - * Encode a row of 16-bit pixels. - */ -static int -LogL16Encode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - LogLuvState* sp = EncoderState(tif); - int shft; - tmsize_t i; - tmsize_t j; - tmsize_t npixels; - uint8* op; - int16* tp; - int16 b; - tmsize_t occ; - int rc=0, mask; - tmsize_t beg; - - assert(s == 0); - assert(sp != NULL); - npixels = cc / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_16BIT) - tp = (int16*) bp; - else { - tp = (int16*) sp->tbuf; - assert(sp->tbuflen >= npixels); - (*sp->tfunc)(sp, bp, npixels); - } - /* compress each byte string */ - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - for (shft = 2*8; (shft -= 8) >= 0; ) - for (i = 0; i < npixels; i += rc) { - if (occ < 4) { - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - } - mask = 0xff << shft; /* find next run */ - for (beg = i; beg < npixels; beg += rc) { - b = (int16) (tp[beg] & mask); - rc = 1; - while (rc < 127+2 && beg+rc < npixels && - (tp[beg+rc] & mask) == b) - rc++; - if (rc >= MINRUN) - break; /* long enough */ - } - if (beg-i > 1 && beg-i < MINRUN) { - b = (int16) (tp[i] & mask);/*check short run */ - j = i+1; - while ((tp[j++] & mask) == b) - if (j == beg) { - *op++ = (uint8)(128-2+j-i); - *op++ = (uint8)(b >> shft); - occ -= 2; - i = beg; - break; - } - } - while (i < beg) { /* write out non-run */ - if ((j = beg-i) > 127) j = 127; - if (occ < j+3) { - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - } - *op++ = (uint8) j; occ--; - while (j--) { - *op++ = (uint8) (tp[i++] >> shft & 0xff); - occ--; - } - } - if (rc >= MINRUN) { /* write out run */ - *op++ = (uint8) (128-2+rc); - *op++ = (uint8) (tp[beg] >> shft & 0xff); - occ -= 2; - } else - rc = 0; - } - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - - return (1); -} - -/* - * Encode a row of 24-bit pixels. - */ -static int -LogLuvEncode24(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - LogLuvState* sp = EncoderState(tif); - tmsize_t i; - tmsize_t npixels; - tmsize_t occ; - uint8* op; - uint32* tp; - - assert(s == 0); - assert(sp != NULL); - npixels = cc / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32*) bp; - else { - tp = (uint32*) sp->tbuf; - assert(sp->tbuflen >= npixels); - (*sp->tfunc)(sp, bp, npixels); - } - /* write out encoded pixels */ - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - for (i = npixels; i--; ) { - if (occ < 3) { - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - } - *op++ = (uint8)(*tp >> 16); - *op++ = (uint8)(*tp >> 8 & 0xff); - *op++ = (uint8)(*tp++ & 0xff); - occ -= 3; - } - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - - return (1); -} - -/* - * Encode a row of 32-bit pixels. - */ -static int -LogLuvEncode32(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - LogLuvState* sp = EncoderState(tif); - int shft; - tmsize_t i; - tmsize_t j; - tmsize_t npixels; - uint8* op; - uint32* tp; - uint32 b; - tmsize_t occ; - int rc=0, mask; - tmsize_t beg; - - assert(s == 0); - assert(sp != NULL); - - npixels = cc / sp->pixel_size; - - if (sp->user_datafmt == SGILOGDATAFMT_RAW) - tp = (uint32*) bp; - else { - tp = (uint32*) sp->tbuf; - assert(sp->tbuflen >= npixels); - (*sp->tfunc)(sp, bp, npixels); - } - /* compress each byte string */ - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - for (shft = 4*8; (shft -= 8) >= 0; ) - for (i = 0; i < npixels; i += rc) { - if (occ < 4) { - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - } - mask = 0xff << shft; /* find next run */ - for (beg = i; beg < npixels; beg += rc) { - b = tp[beg] & mask; - rc = 1; - while (rc < 127+2 && beg+rc < npixels && - (tp[beg+rc] & mask) == b) - rc++; - if (rc >= MINRUN) - break; /* long enough */ - } - if (beg-i > 1 && beg-i < MINRUN) { - b = tp[i] & mask; /* check short run */ - j = i+1; - while ((tp[j++] & mask) == b) - if (j == beg) { - *op++ = (uint8)(128-2+j-i); - *op++ = (uint8)(b >> shft); - occ -= 2; - i = beg; - break; - } - } - while (i < beg) { /* write out non-run */ - if ((j = beg-i) > 127) j = 127; - if (occ < j+3) { - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - occ = tif->tif_rawdatasize - tif->tif_rawcc; - } - *op++ = (uint8) j; occ--; - while (j--) { - *op++ = (uint8)(tp[i++] >> shft & 0xff); - occ--; - } - } - if (rc >= MINRUN) { /* write out run */ - *op++ = (uint8) (128-2+rc); - *op++ = (uint8)(tp[beg] >> shft & 0xff); - occ -= 2; - } else - rc = 0; - } - tif->tif_rawcp = op; - tif->tif_rawcc = tif->tif_rawdatasize - occ; - - return (1); -} - -/* - * Encode a strip of pixels. We break it into rows to - * avoid encoding runs across row boundaries. - */ -static int -LogLuvEncodeStrip(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - tmsize_t rowlen = TIFFScanlineSize(tif); - - assert(cc%rowlen == 0); - while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) - bp += rowlen, cc -= rowlen; - return (cc == 0); -} - -/* - * Encode a tile of pixels. We break it into rows to - * avoid encoding runs across row boundaries. - */ -static int -LogLuvEncodeTile(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - tmsize_t rowlen = TIFFTileRowSize(tif); - - assert(cc%rowlen == 0); - while (cc && (*tif->tif_encoderow)(tif, bp, rowlen, s) == 1) - bp += rowlen, cc -= rowlen; - return (cc == 0); -} - -/* - * Encode/Decode functions for converting to and from user formats. - */ - -#include "uvcode.h" - -#ifndef UVSCALE -#define U_NEU 0.210526316 -#define V_NEU 0.473684211 -#define UVSCALE 410. -#endif - -#ifndef M_LN2 -#define M_LN2 0.69314718055994530942 -#endif -#ifndef M_PI -#define M_PI 3.14159265358979323846 -#endif -#define log2(x) ((1./M_LN2)*log(x)) -#define exp2(x) exp(M_LN2*(x)) - -#define itrunc(x,m) ((m)==SGILOGENCODE_NODITHER ? \ - (int)(x) : \ - (int)((x) + rand()*(1./RAND_MAX) - .5)) - -#if !LOGLUV_PUBLIC -static -#endif -double -LogL16toY(int p16) /* compute luminance from 16-bit LogL */ -{ - int Le = p16 & 0x7fff; - double Y; - - if (!Le) - return (0.); - Y = exp(M_LN2/256.*(Le+.5) - M_LN2*64.); - return (!(p16 & 0x8000) ? Y : -Y); -} - -#if !LOGLUV_PUBLIC -static -#endif -int -LogL16fromY(double Y, int em) /* get 16-bit LogL from Y */ -{ - if (Y >= 1.8371976e19) - return (0x7fff); - if (Y <= -1.8371976e19) - return (0xffff); - if (Y > 5.4136769e-20) - return itrunc(256.*(log2(Y) + 64.), em); - if (Y < -5.4136769e-20) - return (~0x7fff | itrunc(256.*(log2(-Y) + 64.), em)); - return (0); -} - -static void -L16toY(LogLuvState* sp, uint8* op, tmsize_t n) -{ - int16* l16 = (int16*) sp->tbuf; - float* yp = (float*) op; - - while (n-- > 0) - *yp++ = (float)LogL16toY(*l16++); -} - -static void -L16toGry(LogLuvState* sp, uint8* op, tmsize_t n) -{ - int16* l16 = (int16*) sp->tbuf; - uint8* gp = (uint8*) op; - - while (n-- > 0) { - double Y = LogL16toY(*l16++); - *gp++ = (uint8) ((Y <= 0.) ? 0 : (Y >= 1.) ? 255 : (int)(256.*sqrt(Y))); - } -} - -static void -L16fromY(LogLuvState* sp, uint8* op, tmsize_t n) -{ - int16* l16 = (int16*) sp->tbuf; - float* yp = (float*) op; - - while (n-- > 0) - *l16++ = (int16) (LogL16fromY(*yp++, sp->encode_meth)); -} - -#if !LOGLUV_PUBLIC -static -#endif -void -XYZtoRGB24(float xyz[3], uint8 rgb[3]) -{ - double r, g, b; - /* assume CCIR-709 primaries */ - r = 2.690*xyz[0] + -1.276*xyz[1] + -0.414*xyz[2]; - g = -1.022*xyz[0] + 1.978*xyz[1] + 0.044*xyz[2]; - b = 0.061*xyz[0] + -0.224*xyz[1] + 1.163*xyz[2]; - /* assume 2.0 gamma for speed */ - /* could use integer sqrt approx., but this is probably faster */ - rgb[0] = (uint8)((r<=0.) ? 0 : (r >= 1.) ? 255 : (int)(256.*sqrt(r))); - rgb[1] = (uint8)((g<=0.) ? 0 : (g >= 1.) ? 255 : (int)(256.*sqrt(g))); - rgb[2] = (uint8)((b<=0.) ? 0 : (b >= 1.) ? 255 : (int)(256.*sqrt(b))); -} - -#if !LOGLUV_PUBLIC -static -#endif -double -LogL10toY(int p10) /* compute luminance from 10-bit LogL */ -{ - if (p10 == 0) - return (0.); - return (exp(M_LN2/64.*(p10+.5) - M_LN2*12.)); -} - -#if !LOGLUV_PUBLIC -static -#endif -int -LogL10fromY(double Y, int em) /* get 10-bit LogL from Y */ -{ - if (Y >= 15.742) - return (0x3ff); - else if (Y <= .00024283) - return (0); - else - return itrunc(64.*(log2(Y) + 12.), em); -} - -#define NANGLES 100 -#define uv2ang(u, v) ( (NANGLES*.499999999/M_PI) \ - * atan2((v)-V_NEU,(u)-U_NEU) + .5*NANGLES ) - -static int -oog_encode(double u, double v) /* encode out-of-gamut chroma */ -{ - static int oog_table[NANGLES]; - static int initialized = 0; - register int i; - - if (!initialized) { /* set up perimeter table */ - double eps[NANGLES], ua, va, ang, epsa; - int ui, vi, ustep; - for (i = NANGLES; i--; ) - eps[i] = 2.; - for (vi = UV_NVS; vi--; ) { - va = UV_VSTART + (vi+.5)*UV_SQSIZ; - ustep = uv_row[vi].nus-1; - if (vi == UV_NVS-1 || vi == 0 || ustep <= 0) - ustep = 1; - for (ui = uv_row[vi].nus-1; ui >= 0; ui -= ustep) { - ua = uv_row[vi].ustart + (ui+.5)*UV_SQSIZ; - ang = uv2ang(ua, va); - i = (int) ang; - epsa = fabs(ang - (i+.5)); - if (epsa < eps[i]) { - oog_table[i] = uv_row[vi].ncum + ui; - eps[i] = epsa; - } - } - } - for (i = NANGLES; i--; ) /* fill any holes */ - if (eps[i] > 1.5) { - int i1, i2; - for (i1 = 1; i1 < NANGLES/2; i1++) - if (eps[(i+i1)%NANGLES] < 1.5) - break; - for (i2 = 1; i2 < NANGLES/2; i2++) - if (eps[(i+NANGLES-i2)%NANGLES] < 1.5) - break; - if (i1 < i2) - oog_table[i] = - oog_table[(i+i1)%NANGLES]; - else - oog_table[i] = - oog_table[(i+NANGLES-i2)%NANGLES]; - } - initialized = 1; - } - i = (int) uv2ang(u, v); /* look up hue angle */ - return (oog_table[i]); -} - -#undef uv2ang -#undef NANGLES - -#if !LOGLUV_PUBLIC -static -#endif -int -uv_encode(double u, double v, int em) /* encode (u',v') coordinates */ -{ - register int vi, ui; - - if (v < UV_VSTART) - return oog_encode(u, v); - vi = itrunc((v - UV_VSTART)*(1./UV_SQSIZ), em); - if (vi >= UV_NVS) - return oog_encode(u, v); - if (u < uv_row[vi].ustart) - return oog_encode(u, v); - ui = itrunc((u - uv_row[vi].ustart)*(1./UV_SQSIZ), em); - if (ui >= uv_row[vi].nus) - return oog_encode(u, v); - - return (uv_row[vi].ncum + ui); -} - -#if !LOGLUV_PUBLIC -static -#endif -int -uv_decode(double *up, double *vp, int c) /* decode (u',v') index */ -{ - int upper, lower; - register int ui, vi; - - if (c < 0 || c >= UV_NDIVS) - return (-1); - lower = 0; /* binary search */ - upper = UV_NVS; - while (upper - lower > 1) { - vi = (lower + upper) >> 1; - ui = c - uv_row[vi].ncum; - if (ui > 0) - lower = vi; - else if (ui < 0) - upper = vi; - else { - lower = vi; - break; - } - } - vi = lower; - ui = c - uv_row[vi].ncum; - *up = uv_row[vi].ustart + (ui+.5)*UV_SQSIZ; - *vp = UV_VSTART + (vi+.5)*UV_SQSIZ; - return (0); -} - -#if !LOGLUV_PUBLIC -static -#endif -void -LogLuv24toXYZ(uint32 p, float XYZ[3]) -{ - int Ce; - double L, u, v, s, x, y; - /* decode luminance */ - L = LogL10toY(p>>14 & 0x3ff); - if (L <= 0.) { - XYZ[0] = XYZ[1] = XYZ[2] = 0.; - return; - } - /* decode color */ - Ce = p & 0x3fff; - if (uv_decode(&u, &v, Ce) < 0) { - u = U_NEU; v = V_NEU; - } - s = 1./(6.*u - 16.*v + 12.); - x = 9.*u * s; - y = 4.*v * s; - /* convert to XYZ */ - XYZ[0] = (float)(x/y * L); - XYZ[1] = (float)L; - XYZ[2] = (float)((1.-x-y)/y * L); -} - -#if !LOGLUV_PUBLIC -static -#endif -uint32 -LogLuv24fromXYZ(float XYZ[3], int em) -{ - int Le, Ce; - double u, v, s; - /* encode luminance */ - Le = LogL10fromY(XYZ[1], em); - /* encode color */ - s = XYZ[0] + 15.*XYZ[1] + 3.*XYZ[2]; - if (!Le || s <= 0.) { - u = U_NEU; - v = V_NEU; - } else { - u = 4.*XYZ[0] / s; - v = 9.*XYZ[1] / s; - } - Ce = uv_encode(u, v, em); - if (Ce < 0) /* never happens */ - Ce = uv_encode(U_NEU, V_NEU, SGILOGENCODE_NODITHER); - /* combine encodings */ - return (Le << 14 | Ce); -} - -static void -Luv24toXYZ(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - float* xyz = (float*) op; - - while (n-- > 0) { - LogLuv24toXYZ(*luv, xyz); - xyz += 3; - luv++; - } -} - -static void -Luv24toLuv48(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - int16* luv3 = (int16*) op; - - while (n-- > 0) { - double u, v; - - *luv3++ = (int16)((*luv >> 12 & 0xffd) + 13314); - if (uv_decode(&u, &v, *luv&0x3fff) < 0) { - u = U_NEU; - v = V_NEU; - } - *luv3++ = (int16)(u * (1L<<15)); - *luv3++ = (int16)(v * (1L<<15)); - luv++; - } -} - -static void -Luv24toRGB(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - uint8* rgb = (uint8*) op; - - while (n-- > 0) { - float xyz[3]; - - LogLuv24toXYZ(*luv++, xyz); - XYZtoRGB24(xyz, rgb); - rgb += 3; - } -} - -static void -Luv24fromXYZ(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - float* xyz = (float*) op; - - while (n-- > 0) { - *luv++ = LogLuv24fromXYZ(xyz, sp->encode_meth); - xyz += 3; - } -} - -static void -Luv24fromLuv48(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - int16* luv3 = (int16*) op; - - while (n-- > 0) { - int Le, Ce; - - if (luv3[0] <= 0) - Le = 0; - else if (luv3[0] >= (1<<12)+3314) - Le = (1<<10) - 1; - else if (sp->encode_meth == SGILOGENCODE_NODITHER) - Le = (luv3[0]-3314) >> 2; - else - Le = itrunc(.25*(luv3[0]-3314.), sp->encode_meth); - - Ce = uv_encode((luv3[1]+.5)/(1<<15), (luv3[2]+.5)/(1<<15), - sp->encode_meth); - if (Ce < 0) /* never happens */ - Ce = uv_encode(U_NEU, V_NEU, SGILOGENCODE_NODITHER); - *luv++ = (uint32)Le << 14 | Ce; - luv3 += 3; - } -} - -#if !LOGLUV_PUBLIC -static -#endif -void -LogLuv32toXYZ(uint32 p, float XYZ[3]) -{ - double L, u, v, s, x, y; - /* decode luminance */ - L = LogL16toY((int)p >> 16); - if (L <= 0.) { - XYZ[0] = XYZ[1] = XYZ[2] = 0.; - return; - } - /* decode color */ - u = 1./UVSCALE * ((p>>8 & 0xff) + .5); - v = 1./UVSCALE * ((p & 0xff) + .5); - s = 1./(6.*u - 16.*v + 12.); - x = 9.*u * s; - y = 4.*v * s; - /* convert to XYZ */ - XYZ[0] = (float)(x/y * L); - XYZ[1] = (float)L; - XYZ[2] = (float)((1.-x-y)/y * L); -} - -#if !LOGLUV_PUBLIC -static -#endif -uint32 -LogLuv32fromXYZ(float XYZ[3], int em) -{ - unsigned int Le, ue, ve; - double u, v, s; - /* encode luminance */ - Le = (unsigned int)LogL16fromY(XYZ[1], em); - /* encode color */ - s = XYZ[0] + 15.*XYZ[1] + 3.*XYZ[2]; - if (!Le || s <= 0.) { - u = U_NEU; - v = V_NEU; - } else { - u = 4.*XYZ[0] / s; - v = 9.*XYZ[1] / s; - } - if (u <= 0.) ue = 0; - else ue = itrunc(UVSCALE*u, em); - if (ue > 255) ue = 255; - if (v <= 0.) ve = 0; - else ve = itrunc(UVSCALE*v, em); - if (ve > 255) ve = 255; - /* combine encodings */ - return (Le << 16 | ue << 8 | ve); -} - -static void -Luv32toXYZ(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - float* xyz = (float*) op; - - while (n-- > 0) { - LogLuv32toXYZ(*luv++, xyz); - xyz += 3; - } -} - -static void -Luv32toLuv48(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - int16* luv3 = (int16*) op; - - while (n-- > 0) { - double u, v; - - *luv3++ = (int16)(*luv >> 16); - u = 1./UVSCALE * ((*luv>>8 & 0xff) + .5); - v = 1./UVSCALE * ((*luv & 0xff) + .5); - *luv3++ = (int16)(u * (1L<<15)); - *luv3++ = (int16)(v * (1L<<15)); - luv++; - } -} - -static void -Luv32toRGB(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - uint8* rgb = (uint8*) op; - - while (n-- > 0) { - float xyz[3]; - - LogLuv32toXYZ(*luv++, xyz); - XYZtoRGB24(xyz, rgb); - rgb += 3; - } -} - -static void -Luv32fromXYZ(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - float* xyz = (float*) op; - - while (n-- > 0) { - *luv++ = LogLuv32fromXYZ(xyz, sp->encode_meth); - xyz += 3; - } -} - -static void -Luv32fromLuv48(LogLuvState* sp, uint8* op, tmsize_t n) -{ - uint32* luv = (uint32*) sp->tbuf; - int16* luv3 = (int16*) op; - - if (sp->encode_meth == SGILOGENCODE_NODITHER) { - while (n-- > 0) { - *luv++ = (uint32)luv3[0] << 16 | - (luv3[1]*(uint32)(UVSCALE+.5) >> 7 & 0xff00) | - (luv3[2]*(uint32)(UVSCALE+.5) >> 15 & 0xff); - luv3 += 3; - } - return; - } - while (n-- > 0) { - *luv++ = (uint32)luv3[0] << 16 | - (itrunc(luv3[1]*(UVSCALE/(1<<15)), sp->encode_meth) << 8 & 0xff00) | - (itrunc(luv3[2]*(UVSCALE/(1<<15)), sp->encode_meth) & 0xff); - luv3 += 3; - } -} - -static void -_logLuvNop(LogLuvState* sp, uint8* op, tmsize_t n) -{ - (void) sp; (void) op; (void) n; -} - -static int -LogL16GuessDataFmt(TIFFDirectory *td) -{ -#define PACK(s,b,f) (((b)<<6)|((s)<<3)|(f)) - switch (PACK(td->td_samplesperpixel, td->td_bitspersample, td->td_sampleformat)) { - case PACK(1, 32, SAMPLEFORMAT_IEEEFP): - return (SGILOGDATAFMT_FLOAT); - case PACK(1, 16, SAMPLEFORMAT_VOID): - case PACK(1, 16, SAMPLEFORMAT_INT): - case PACK(1, 16, SAMPLEFORMAT_UINT): - return (SGILOGDATAFMT_16BIT); - case PACK(1, 8, SAMPLEFORMAT_VOID): - case PACK(1, 8, SAMPLEFORMAT_UINT): - return (SGILOGDATAFMT_8BIT); - } -#undef PACK - return (SGILOGDATAFMT_UNKNOWN); -} - -static tmsize_t -multiply_ms(tmsize_t m1, tmsize_t m2) -{ - tmsize_t bytes = m1 * m2; - - if (m1 && bytes / m1 != m2) - bytes = 0; - - return bytes; -} - -static int -LogL16InitState(TIFF* tif) -{ - static const char module[] = "LogL16InitState"; - TIFFDirectory *td = &tif->tif_dir; - LogLuvState* sp = DecoderState(tif); - - assert(sp != NULL); - assert(td->td_photometric == PHOTOMETRIC_LOGL); - - /* for some reason, we can't do this in TIFFInitLogL16 */ - if (sp->user_datafmt == SGILOGDATAFMT_UNKNOWN) - sp->user_datafmt = LogL16GuessDataFmt(td); - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->pixel_size = sizeof (float); - break; - case SGILOGDATAFMT_16BIT: - sp->pixel_size = sizeof (int16); - break; - case SGILOGDATAFMT_8BIT: - sp->pixel_size = sizeof (uint8); - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "No support for converting user data format to LogL"); - return (0); - } - if( isTiled(tif) ) - sp->tbuflen = multiply_ms(td->td_tilewidth, td->td_tilelength); - else - sp->tbuflen = multiply_ms(td->td_imagewidth, td->td_rowsperstrip); - if (multiply_ms(sp->tbuflen, sizeof (int16)) == 0 || - (sp->tbuf = (uint8*) _TIFFmalloc(sp->tbuflen * sizeof (int16))) == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, "No space for SGILog translation buffer"); - return (0); - } - return (1); -} - -static int -LogLuvGuessDataFmt(TIFFDirectory *td) -{ - int guess; - - /* - * If the user didn't tell us their datafmt, - * take our best guess from the bitspersample. - */ -#define PACK(a,b) (((a)<<3)|(b)) - switch (PACK(td->td_bitspersample, td->td_sampleformat)) { - case PACK(32, SAMPLEFORMAT_IEEEFP): - guess = SGILOGDATAFMT_FLOAT; - break; - case PACK(32, SAMPLEFORMAT_VOID): - case PACK(32, SAMPLEFORMAT_UINT): - case PACK(32, SAMPLEFORMAT_INT): - guess = SGILOGDATAFMT_RAW; - break; - case PACK(16, SAMPLEFORMAT_VOID): - case PACK(16, SAMPLEFORMAT_INT): - case PACK(16, SAMPLEFORMAT_UINT): - guess = SGILOGDATAFMT_16BIT; - break; - case PACK( 8, SAMPLEFORMAT_VOID): - case PACK( 8, SAMPLEFORMAT_UINT): - guess = SGILOGDATAFMT_8BIT; - break; - default: - guess = SGILOGDATAFMT_UNKNOWN; - break; -#undef PACK - } - /* - * Double-check samples per pixel. - */ - switch (td->td_samplesperpixel) { - case 1: - if (guess != SGILOGDATAFMT_RAW) - guess = SGILOGDATAFMT_UNKNOWN; - break; - case 3: - if (guess == SGILOGDATAFMT_RAW) - guess = SGILOGDATAFMT_UNKNOWN; - break; - default: - guess = SGILOGDATAFMT_UNKNOWN; - break; - } - return (guess); -} - -static int -LogLuvInitState(TIFF* tif) -{ - static const char module[] = "LogLuvInitState"; - TIFFDirectory* td = &tif->tif_dir; - LogLuvState* sp = DecoderState(tif); - - assert(sp != NULL); - assert(td->td_photometric == PHOTOMETRIC_LOGLUV); - - /* for some reason, we can't do this in TIFFInitLogLuv */ - if (td->td_planarconfig != PLANARCONFIG_CONTIG) { - TIFFErrorExt(tif->tif_clientdata, module, - "SGILog compression cannot handle non-contiguous data"); - return (0); - } - if (sp->user_datafmt == SGILOGDATAFMT_UNKNOWN) - sp->user_datafmt = LogLuvGuessDataFmt(td); - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->pixel_size = 3*sizeof (float); - break; - case SGILOGDATAFMT_16BIT: - sp->pixel_size = 3*sizeof (int16); - break; - case SGILOGDATAFMT_RAW: - sp->pixel_size = sizeof (uint32); - break; - case SGILOGDATAFMT_8BIT: - sp->pixel_size = 3*sizeof (uint8); - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "No support for converting user data format to LogLuv"); - return (0); - } - if( isTiled(tif) ) - sp->tbuflen = multiply_ms(td->td_tilewidth, td->td_tilelength); - else - sp->tbuflen = multiply_ms(td->td_imagewidth, td->td_rowsperstrip); - if (multiply_ms(sp->tbuflen, sizeof (uint32)) == 0 || - (sp->tbuf = (uint8*) _TIFFmalloc(sp->tbuflen * sizeof (uint32))) == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, "No space for SGILog translation buffer"); - return (0); - } - return (1); -} - -static int -LogLuvFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -static int -LogLuvSetupDecode(TIFF* tif) -{ - static const char module[] = "LogLuvSetupDecode"; - LogLuvState* sp = DecoderState(tif); - TIFFDirectory* td = &tif->tif_dir; - - tif->tif_postdecode = _TIFFNoPostDecode; - switch (td->td_photometric) { - case PHOTOMETRIC_LOGLUV: - if (!LogLuvInitState(tif)) - break; - if (td->td_compression == COMPRESSION_SGILOG24) { - tif->tif_decoderow = LogLuvDecode24; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = Luv24toXYZ; - break; - case SGILOGDATAFMT_16BIT: - sp->tfunc = Luv24toLuv48; - break; - case SGILOGDATAFMT_8BIT: - sp->tfunc = Luv24toRGB; - break; - } - } else { - tif->tif_decoderow = LogLuvDecode32; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = Luv32toXYZ; - break; - case SGILOGDATAFMT_16BIT: - sp->tfunc = Luv32toLuv48; - break; - case SGILOGDATAFMT_8BIT: - sp->tfunc = Luv32toRGB; - break; - } - } - return (1); - case PHOTOMETRIC_LOGL: - if (!LogL16InitState(tif)) - break; - tif->tif_decoderow = LogL16Decode; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = L16toY; - break; - case SGILOGDATAFMT_8BIT: - sp->tfunc = L16toGry; - break; - } - return (1); - default: - TIFFErrorExt(tif->tif_clientdata, module, - "Inappropriate photometric interpretation %d for SGILog compression; %s", - td->td_photometric, "must be either LogLUV or LogL"); - break; - } - return (0); -} - -static int -LogLuvSetupEncode(TIFF* tif) -{ - static const char module[] = "LogLuvSetupEncode"; - LogLuvState* sp = EncoderState(tif); - TIFFDirectory* td = &tif->tif_dir; - - switch (td->td_photometric) { - case PHOTOMETRIC_LOGLUV: - if (!LogLuvInitState(tif)) - break; - if (td->td_compression == COMPRESSION_SGILOG24) { - tif->tif_encoderow = LogLuvEncode24; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = Luv24fromXYZ; - break; - case SGILOGDATAFMT_16BIT: - sp->tfunc = Luv24fromLuv48; - break; - case SGILOGDATAFMT_RAW: - break; - default: - goto notsupported; - } - } else { - tif->tif_encoderow = LogLuvEncode32; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = Luv32fromXYZ; - break; - case SGILOGDATAFMT_16BIT: - sp->tfunc = Luv32fromLuv48; - break; - case SGILOGDATAFMT_RAW: - break; - default: - goto notsupported; - } - } - break; - case PHOTOMETRIC_LOGL: - if (!LogL16InitState(tif)) - break; - tif->tif_encoderow = LogL16Encode; - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - sp->tfunc = L16fromY; - break; - case SGILOGDATAFMT_16BIT: - break; - default: - goto notsupported; - } - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "Inappropriate photometric interpretation %d for SGILog compression; %s", - td->td_photometric, "must be either LogLUV or LogL"); - break; - } - return (1); -notsupported: - TIFFErrorExt(tif->tif_clientdata, module, - "SGILog compression supported only for %s, or raw data", - td->td_photometric == PHOTOMETRIC_LOGL ? "Y, L" : "XYZ, Luv"); - return (0); -} - -static void -LogLuvClose(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - - /* - * For consistency, we always want to write out the same - * bitspersample and sampleformat for our TIFF file, - * regardless of the data format being used by the application. - * Since this routine is called after tags have been set but - * before they have been recorded in the file, we reset them here. - */ - td->td_samplesperpixel = - (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3; - td->td_bitspersample = 16; - td->td_sampleformat = SAMPLEFORMAT_INT; -} - -static void -LogLuvCleanup(TIFF* tif) -{ - LogLuvState* sp = (LogLuvState *)tif->tif_data; - - assert(sp != 0); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - - if (sp->tbuf) - _TIFFfree(sp->tbuf); - _TIFFfree(sp); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -static int -LogLuvVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[] = "LogLuvVSetField"; - LogLuvState* sp = DecoderState(tif); - int bps, fmt; - - switch (tag) { - case TIFFTAG_SGILOGDATAFMT: - sp->user_datafmt = (int) va_arg(ap, int); - /* - * Tweak the TIFF header so that the rest of libtiff knows what - * size of data will be passed between app and library, and - * assume that the app knows what it is doing and is not - * confused by these header manipulations... - */ - switch (sp->user_datafmt) { - case SGILOGDATAFMT_FLOAT: - bps = 32, fmt = SAMPLEFORMAT_IEEEFP; - break; - case SGILOGDATAFMT_16BIT: - bps = 16, fmt = SAMPLEFORMAT_INT; - break; - case SGILOGDATAFMT_RAW: - bps = 32, fmt = SAMPLEFORMAT_UINT; - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1); - break; - case SGILOGDATAFMT_8BIT: - bps = 8, fmt = SAMPLEFORMAT_UINT; - break; - default: - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "Unknown data format %d for LogLuv compression", - sp->user_datafmt); - return (0); - } - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, fmt); - /* - * Must recalculate sizes should bits/sample change. - */ - tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tmsize_t) -1; - tif->tif_scanlinesize = TIFFScanlineSize(tif); - return (1); - case TIFFTAG_SGILOGENCODE: - sp->encode_meth = (int) va_arg(ap, int); - if (sp->encode_meth != SGILOGENCODE_NODITHER && - sp->encode_meth != SGILOGENCODE_RANDITHER) { - TIFFErrorExt(tif->tif_clientdata, module, - "Unknown encoding %d for LogLuv compression", - sp->encode_meth); - return (0); - } - return (1); - default: - return (*sp->vsetparent)(tif, tag, ap); - } -} - -static int -LogLuvVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - LogLuvState *sp = (LogLuvState *)tif->tif_data; - - switch (tag) { - case TIFFTAG_SGILOGDATAFMT: - *va_arg(ap, int*) = sp->user_datafmt; - return (1); - default: - return (*sp->vgetparent)(tif, tag, ap); - } -} - -static const TIFFField LogLuvFields[] = { - { TIFFTAG_SGILOGDATAFMT, 0, 0, TIFF_SHORT, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "SGILogDataFmt", NULL}, - { TIFFTAG_SGILOGENCODE, 0, 0, TIFF_SHORT, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "SGILogEncode", NULL} -}; - -int -TIFFInitSGILog(TIFF* tif, int scheme) -{ - static const char module[] = "TIFFInitSGILog"; - LogLuvState* sp; - - assert(scheme == COMPRESSION_SGILOG24 || scheme == COMPRESSION_SGILOG); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, LogLuvFields, - TIFFArrayCount(LogLuvFields))) { - TIFFErrorExt(tif->tif_clientdata, module, - "Merging SGILog codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof (LogLuvState)); - if (tif->tif_data == NULL) - goto bad; - sp = (LogLuvState*) tif->tif_data; - _TIFFmemset((void*)sp, 0, sizeof (*sp)); - sp->user_datafmt = SGILOGDATAFMT_UNKNOWN; - sp->encode_meth = (scheme == COMPRESSION_SGILOG24) ? - SGILOGENCODE_RANDITHER : SGILOGENCODE_NODITHER; - sp->tfunc = _logLuvNop; - - /* - * Install codec methods. - * NB: tif_decoderow & tif_encoderow are filled - * in at setup time. - */ - tif->tif_fixuptags = LogLuvFixupTags; - tif->tif_setupdecode = LogLuvSetupDecode; - tif->tif_decodestrip = LogLuvDecodeStrip; - tif->tif_decodetile = LogLuvDecodeTile; - tif->tif_setupencode = LogLuvSetupEncode; - tif->tif_encodestrip = LogLuvEncodeStrip; - tif->tif_encodetile = LogLuvEncodeTile; - tif->tif_close = LogLuvClose; - tif->tif_cleanup = LogLuvCleanup; - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = LogLuvVGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = LogLuvVSetField; /* hook for codec tags */ - - return (1); -bad: - TIFFErrorExt(tif->tif_clientdata, module, - "%s: No space for LogLuv state block", tif->tif_name); - return (0); -} -#endif /* LOGLUV_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_lzma.c b/tiff/libtiff/tif_lzma.c deleted file mode 100755 index dedf1d9..0000000 --- a/tiff/libtiff/tif_lzma.c +++ /dev/null @@ -1,495 +0,0 @@ -/* $Id: tif_lzma.c,v 1.4 2011-12-22 00:29:29 bfriesen Exp $ */ - -/* - * Copyright (c) 2010, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef LZMA_SUPPORT -/* - * TIFF Library. - * - * LZMA2 Compression Support - * - * You need an LZMA2 SDK to link with. See http://tukaani.org/xz/ for details. - * - * The codec is derived from ZLIB codec (tif_zip.c). - */ - -#include "tif_predict.h" -#include "lzma.h" - -#include - -/* - * State block for each open TIFF file using LZMA2 compression/decompression. - */ -typedef struct { - TIFFPredictorState predict; - lzma_stream stream; - lzma_filter filters[LZMA_FILTERS_MAX + 1]; - lzma_options_delta opt_delta; /* delta filter options */ - lzma_options_lzma opt_lzma; /* LZMA2 filter options */ - int preset; /* compression level */ - lzma_check check; /* type of the integrity check */ - int state; /* state flags */ -#define LSTATE_INIT_DECODE 0x01 -#define LSTATE_INIT_ENCODE 0x02 - - TIFFVGetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ -} LZMAState; - -#define LState(tif) ((LZMAState*) (tif)->tif_data) -#define DecoderState(tif) LState(tif) -#define EncoderState(tif) LState(tif) - -static int LZMAEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s); -static int LZMADecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s); - -static const char * -LZMAStrerror(lzma_ret ret) -{ - switch (ret) { - case LZMA_OK: - return "operation completed successfully"; - case LZMA_STREAM_END: - return "end of stream was reached"; - case LZMA_NO_CHECK: - return "input stream has no integrity check"; - case LZMA_UNSUPPORTED_CHECK: - return "cannot calculate the integrity check"; - case LZMA_GET_CHECK: - return "integrity check type is now available"; - case LZMA_MEM_ERROR: - return "cannot allocate memory"; - case LZMA_MEMLIMIT_ERROR: - return "memory usage limit was reached"; - case LZMA_FORMAT_ERROR: - return "file format not recognized"; - case LZMA_OPTIONS_ERROR: - return "invalid or unsupported options"; - case LZMA_DATA_ERROR: - return "data is corrupt"; - case LZMA_BUF_ERROR: - return "no progress is possible (stream is truncated or corrupt)"; - case LZMA_PROG_ERROR: - return "programming error"; - default: - return "unindentified liblzma error"; - } -} - -static int -LZMAFixupTags(TIFF* tif) -{ - (void) tif; - return 1; -} - -static int -LZMASetupDecode(TIFF* tif) -{ - LZMAState* sp = DecoderState(tif); - - assert(sp != NULL); - - /* if we were last encoding, terminate this mode */ - if (sp->state & LSTATE_INIT_ENCODE) { - lzma_end(&sp->stream); - sp->state = 0; - } - - sp->state |= LSTATE_INIT_DECODE; - return 1; -} - -/* - * Setup state for decoding a strip. - */ -static int -LZMAPreDecode(TIFF* tif, uint16 s) -{ - static const char module[] = "LZMAPreDecode"; - LZMAState* sp = DecoderState(tif); - lzma_ret ret; - - (void) s; - assert(sp != NULL); - - if( (sp->state & LSTATE_INIT_DECODE) == 0 ) - tif->tif_setupdecode(tif); - - sp->stream.next_in = tif->tif_rawdata; - sp->stream.avail_in = (size_t) tif->tif_rawcc; - if ((tmsize_t)sp->stream.avail_in != tif->tif_rawcc) { - TIFFErrorExt(tif->tif_clientdata, module, - "Liblzma cannot deal with buffers this size"); - return 0; - } - - /* - * Disable memory limit when decoding. UINT64_MAX is a flag to disable - * the limit, we are passing (uint64_t)-1 which should be the same. - */ - ret = lzma_stream_decoder(&sp->stream, (uint64_t)-1, 0); - if (ret != LZMA_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error initializing the stream decoder, %s", - LZMAStrerror(ret)); - return 0; - } - return 1; -} - -static int -LZMADecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "LZMADecode"; - LZMAState* sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - assert(sp->state == LSTATE_INIT_DECODE); - - sp->stream.next_in = tif->tif_rawcp; - sp->stream.avail_in = (size_t) tif->tif_rawcc; - - sp->stream.next_out = op; - sp->stream.avail_out = (size_t) occ; - if ((tmsize_t)sp->stream.avail_out != occ) { - TIFFErrorExt(tif->tif_clientdata, module, - "Liblzma cannot deal with buffers this size"); - return 0; - } - - do { - /* - * Save the current stream state to properly recover from the - * decoding errors later. - */ - const uint8_t *next_in = sp->stream.next_in; - size_t avail_in = sp->stream.avail_in; - - lzma_ret ret = lzma_code(&sp->stream, LZMA_RUN); - if (ret == LZMA_STREAM_END) - break; - if (ret == LZMA_MEMLIMIT_ERROR) { - lzma_ret r = lzma_stream_decoder(&sp->stream, - lzma_memusage(&sp->stream), 0); - if (r != LZMA_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Error initializing the stream decoder, %s", - LZMAStrerror(r)); - break; - } - sp->stream.next_in = next_in; - sp->stream.avail_in = avail_in; - continue; - } - if (ret != LZMA_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Decoding error at scanline %lu, %s", - (unsigned long) tif->tif_row, LZMAStrerror(ret)); - break; - } - } while (sp->stream.avail_out > 0); - if (sp->stream.avail_out != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %lu (short %lu bytes)", - (unsigned long) tif->tif_row, (unsigned long) sp->stream.avail_out); - return 0; - } - - tif->tif_rawcp = (uint8 *)sp->stream.next_in; /* cast away const */ - tif->tif_rawcc = sp->stream.avail_in; - - return 1; -} - -static int -LZMASetupEncode(TIFF* tif) -{ - LZMAState* sp = EncoderState(tif); - - assert(sp != NULL); - if (sp->state & LSTATE_INIT_DECODE) { - lzma_end(&sp->stream); - sp->state = 0; - } - - sp->state |= LSTATE_INIT_ENCODE; - return 1; -} - -/* - * Reset encoding state at the start of a strip. - */ -static int -LZMAPreEncode(TIFF* tif, uint16 s) -{ - static const char module[] = "LZMAPreEncode"; - LZMAState *sp = EncoderState(tif); - - (void) s; - assert(sp != NULL); - if( sp->state != LSTATE_INIT_ENCODE ) - tif->tif_setupencode(tif); - - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (size_t)tif->tif_rawdatasize; - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) { - TIFFErrorExt(tif->tif_clientdata, module, - "Liblzma cannot deal with buffers this size"); - return 0; - } - return (lzma_stream_encoder(&sp->stream, sp->filters, sp->check) == LZMA_OK); -} - -/* - * Encode a chunk of pixels. - */ -static int -LZMAEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - static const char module[] = "LZMAEncode"; - LZMAState *sp = EncoderState(tif); - - assert(sp != NULL); - assert(sp->state == LSTATE_INIT_ENCODE); - - (void) s; - sp->stream.next_in = bp; - sp->stream.avail_in = (size_t) cc; - if ((tmsize_t)sp->stream.avail_in != cc) { - TIFFErrorExt(tif->tif_clientdata, module, - "Liblzma cannot deal with buffers this size"); - return 0; - } - do { - lzma_ret ret = lzma_code(&sp->stream, LZMA_RUN); - if (ret != LZMA_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Encoding error at scanline %lu, %s", - (unsigned long) tif->tif_row, LZMAStrerror(ret)); - return 0; - } - if (sp->stream.avail_out == 0) { - tif->tif_rawcc = tif->tif_rawdatasize; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (size_t)tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in LZMAPreEncode */ - } - } while (sp->stream.avail_in > 0); - return 1; -} - -/* - * Finish off an encoded strip by flushing the last - * string and tacking on an End Of Information code. - */ -static int -LZMAPostEncode(TIFF* tif) -{ - static const char module[] = "LZMAPostEncode"; - LZMAState *sp = EncoderState(tif); - lzma_ret ret; - - sp->stream.avail_in = 0; - do { - ret = lzma_code(&sp->stream, LZMA_FINISH); - switch (ret) { - case LZMA_STREAM_END: - case LZMA_OK: - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) { - tif->tif_rawcc = - tif->tif_rawdatasize - sp->stream.avail_out; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (size_t)tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in ZIPPreEncode */ - } - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, "Liblzma error: %s", - LZMAStrerror(ret)); - return 0; - } - } while (ret != LZMA_STREAM_END); - return 1; -} - -static void -LZMACleanup(TIFF* tif) -{ - LZMAState* sp = LState(tif); - - assert(sp != 0); - - (void)TIFFPredictorCleanup(tif); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - - if (sp->state) { - lzma_end(&sp->stream); - sp->state = 0; - } - _TIFFfree(sp); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -static int -LZMAVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[] = "LZMAVSetField"; - LZMAState* sp = LState(tif); - - switch (tag) { - case TIFFTAG_LZMAPRESET: - sp->preset = (int) va_arg(ap, int); - lzma_lzma_preset(&sp->opt_lzma, sp->preset); - if (sp->state & LSTATE_INIT_ENCODE) { - lzma_ret ret = lzma_stream_encoder(&sp->stream, - sp->filters, - sp->check); - if (ret != LZMA_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Liblzma error: %s", - LZMAStrerror(ret)); - } - } - return 1; - default: - return (*sp->vsetparent)(tif, tag, ap); - } - /*NOTREACHED*/ -} - -static int -LZMAVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - LZMAState* sp = LState(tif); - - switch (tag) { - case TIFFTAG_LZMAPRESET: - *va_arg(ap, int*) = sp->preset; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return 1; -} - -static const TIFFField lzmaFields[] = { - { TIFFTAG_LZMAPRESET, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, - FIELD_PSEUDO, TRUE, FALSE, "LZMA2 Compression Preset", NULL }, -}; - -int -TIFFInitLZMA(TIFF* tif, int scheme) -{ - static const char module[] = "TIFFInitLZMA"; - LZMAState* sp; - lzma_stream tmp_stream = LZMA_STREAM_INIT; - - assert( scheme == COMPRESSION_LZMA ); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, lzmaFields, TIFFArrayCount(lzmaFields))) { - TIFFErrorExt(tif->tif_clientdata, module, - "Merging LZMA2 codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof(LZMAState)); - if (tif->tif_data == NULL) - goto bad; - sp = LState(tif); - memcpy(&sp->stream, &tmp_stream, sizeof(lzma_stream)); - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = LZMAVGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = LZMAVSetField; /* hook for codec tags */ - - /* Default values for codec-specific fields */ - sp->preset = LZMA_PRESET_DEFAULT; /* default comp. level */ - sp->check = LZMA_CHECK_NONE; - sp->state = 0; - - /* Data filters. So far we are using delta and LZMA2 filters only. */ - sp->opt_delta.type = LZMA_DELTA_TYPE_BYTE; - /* - * The sample size in bytes seems to be reasonable distance for delta - * filter. - */ - sp->opt_delta.dist = (tif->tif_dir.td_bitspersample % 8) ? - 1 : tif->tif_dir.td_bitspersample / 8; - sp->filters[0].id = LZMA_FILTER_DELTA; - sp->filters[0].options = &sp->opt_delta; - - lzma_lzma_preset(&sp->opt_lzma, sp->preset); - sp->filters[1].id = LZMA_FILTER_LZMA2; - sp->filters[1].options = &sp->opt_lzma; - - sp->filters[2].id = LZMA_VLI_UNKNOWN; - sp->filters[2].options = NULL; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = LZMAFixupTags; - tif->tif_setupdecode = LZMASetupDecode; - tif->tif_predecode = LZMAPreDecode; - tif->tif_decoderow = LZMADecode; - tif->tif_decodestrip = LZMADecode; - tif->tif_decodetile = LZMADecode; - tif->tif_setupencode = LZMASetupEncode; - tif->tif_preencode = LZMAPreEncode; - tif->tif_postencode = LZMAPostEncode; - tif->tif_encoderow = LZMAEncode; - tif->tif_encodestrip = LZMAEncode; - tif->tif_encodetile = LZMAEncode; - tif->tif_cleanup = LZMACleanup; - /* - * Setup predictor setup. - */ - (void) TIFFPredictorInit(tif); - return 1; -bad: - TIFFErrorExt(tif->tif_clientdata, module, - "No space for LZMA2 state block"); - return 0; -} -#endif /* LZMA_SUPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/libtiff/tif_lzw.c b/tiff/libtiff/tif_lzw.c deleted file mode 100755 index b81bc71..0000000 --- a/tiff/libtiff/tif_lzw.c +++ /dev/null @@ -1,1169 +0,0 @@ -/* $Id: tif_lzw.c,v 1.46 2014-11-20 16:47:21 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef LZW_SUPPORT -/* - * TIFF Library. - * Rev 5.0 Lempel-Ziv & Welch Compression Support - * - * This code is derived from the compress program whose code is - * derived from software contributed to Berkeley by James A. Woods, - * derived from original work by Spencer Thomas and Joseph Orost. - * - * The original Berkeley copyright notice appears below in its entirety. - */ -#include "tif_predict.h" - -#include - -/* - * NB: The 5.0 spec describes a different algorithm than Aldus - * implements. Specifically, Aldus does code length transitions - * one code earlier than should be done (for real LZW). - * Earlier versions of this library implemented the correct - * LZW algorithm, but emitted codes in a bit order opposite - * to the TIFF spec. Thus, to maintain compatibility w/ Aldus - * we interpret MSB-LSB ordered codes to be images written w/ - * old versions of this library, but otherwise adhere to the - * Aldus "off by one" algorithm. - * - * Future revisions to the TIFF spec are expected to "clarify this issue". - */ -#define LZW_COMPAT /* include backwards compatibility code */ -/* - * Each strip of data is supposed to be terminated by a CODE_EOI. - * If the following #define is included, the decoder will also - * check for end-of-strip w/o seeing this code. This makes the - * library more robust, but also slower. - */ -#define LZW_CHECKEOS /* include checks for strips w/o EOI code */ - -#define MAXCODE(n) ((1L<<(n))-1) -/* - * The TIFF spec specifies that encoded bit - * strings range from 9 to 12 bits. - */ -#define BITS_MIN 9 /* start with 9 bits */ -#define BITS_MAX 12 /* max of 12 bit strings */ -/* predefined codes */ -#define CODE_CLEAR 256 /* code to clear string table */ -#define CODE_EOI 257 /* end-of-information code */ -#define CODE_FIRST 258 /* first free code entry */ -#define CODE_MAX MAXCODE(BITS_MAX) -#define HSIZE 9001L /* 91% occupancy */ -#define HSHIFT (13-8) -#ifdef LZW_COMPAT -/* NB: +1024 is for compatibility with old files */ -#define CSIZE (MAXCODE(BITS_MAX)+1024L) -#else -#define CSIZE (MAXCODE(BITS_MAX)+1L) -#endif - -/* - * State block for each open TIFF file using LZW - * compression/decompression. Note that the predictor - * state block must be first in this data structure. - */ -typedef struct { - TIFFPredictorState predict; /* predictor super class */ - - unsigned short nbits; /* # of bits/code */ - unsigned short maxcode; /* maximum code for lzw_nbits */ - unsigned short free_ent; /* next free entry in hash table */ - long nextdata; /* next bits of i/o */ - long nextbits; /* # of valid bits in lzw_nextdata */ - - int rw_mode; /* preserve rw_mode from init */ -} LZWBaseState; - -#define lzw_nbits base.nbits -#define lzw_maxcode base.maxcode -#define lzw_free_ent base.free_ent -#define lzw_nextdata base.nextdata -#define lzw_nextbits base.nextbits - -/* - * Encoding-specific state. - */ -typedef uint16 hcode_t; /* codes fit in 16 bits */ -typedef struct { - long hash; - hcode_t code; -} hash_t; - -/* - * Decoding-specific state. - */ -typedef struct code_ent { - struct code_ent *next; - unsigned short length; /* string len, including this token */ - unsigned char value; /* data value */ - unsigned char firstchar; /* first token of string */ -} code_t; - -typedef int (*decodeFunc)(TIFF*, uint8*, tmsize_t, uint16); - -typedef struct { - LZWBaseState base; - - /* Decoding specific data */ - long dec_nbitsmask; /* lzw_nbits 1 bits, right adjusted */ - long dec_restart; /* restart count */ -#ifdef LZW_CHECKEOS - uint64 dec_bitsleft; /* available bits in raw data */ -#endif - decodeFunc dec_decode; /* regular or backwards compatible */ - code_t* dec_codep; /* current recognized code */ - code_t* dec_oldcodep; /* previously recognized code */ - code_t* dec_free_entp; /* next free entry */ - code_t* dec_maxcodep; /* max available entry */ - code_t* dec_codetab; /* kept separate for small machines */ - - /* Encoding specific data */ - int enc_oldcode; /* last code encountered */ - long enc_checkpoint; /* point at which to clear table */ -#define CHECK_GAP 10000 /* enc_ratio check interval */ - long enc_ratio; /* current compression ratio */ - long enc_incount; /* (input) data bytes encoded */ - long enc_outcount; /* encoded (output) bytes */ - uint8* enc_rawlimit; /* bound on tif_rawdata buffer */ - hash_t* enc_hashtab; /* kept separate for small machines */ -} LZWCodecState; - -#define LZWState(tif) ((LZWBaseState*) (tif)->tif_data) -#define DecoderState(tif) ((LZWCodecState*) LZWState(tif)) -#define EncoderState(tif) ((LZWCodecState*) LZWState(tif)) - -static int LZWDecode(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s); -#ifdef LZW_COMPAT -static int LZWDecodeCompat(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s); -#endif -static void cl_hash(LZWCodecState*); - -/* - * LZW Decoder. - */ - -#ifdef LZW_CHECKEOS -/* - * This check shouldn't be necessary because each - * strip is suppose to be terminated with CODE_EOI. - */ -#define NextCode(_tif, _sp, _bp, _code, _get) { \ - if ((_sp)->dec_bitsleft < (uint64)nbits) { \ - TIFFWarningExt(_tif->tif_clientdata, module, \ - "LZWDecode: Strip %d not terminated with EOI code", \ - _tif->tif_curstrip); \ - _code = CODE_EOI; \ - } else { \ - _get(_sp,_bp,_code); \ - (_sp)->dec_bitsleft -= nbits; \ - } \ -} -#else -#define NextCode(tif, sp, bp, code, get) get(sp, bp, code) -#endif - -static int -LZWFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -static int -LZWSetupDecode(TIFF* tif) -{ - static const char module[] = "LZWSetupDecode"; - LZWCodecState* sp = DecoderState(tif); - int code; - - if( sp == NULL ) - { - /* - * Allocate state block so tag methods have storage to record - * values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof(LZWCodecState)); - if (tif->tif_data == NULL) - { - TIFFErrorExt(tif->tif_clientdata, module, "No space for LZW state block"); - return (0); - } - - DecoderState(tif)->dec_codetab = NULL; - DecoderState(tif)->dec_decode = NULL; - - /* - * Setup predictor setup. - */ - (void) TIFFPredictorInit(tif); - - sp = DecoderState(tif); - } - - assert(sp != NULL); - - if (sp->dec_codetab == NULL) { - sp->dec_codetab = (code_t*)_TIFFmalloc(CSIZE*sizeof (code_t)); - if (sp->dec_codetab == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, - "No space for LZW code table"); - return (0); - } - /* - * Pre-load the table. - */ - code = 255; - do { - sp->dec_codetab[code].value = code; - sp->dec_codetab[code].firstchar = code; - sp->dec_codetab[code].length = 1; - sp->dec_codetab[code].next = NULL; - } while (code--); - /* - * Zero-out the unused entries - */ - _TIFFmemset(&sp->dec_codetab[CODE_CLEAR], 0, - (CODE_FIRST - CODE_CLEAR) * sizeof (code_t)); - } - return (1); -} - -/* - * Setup state for decoding a strip. - */ -static int -LZWPreDecode(TIFF* tif, uint16 s) -{ - static const char module[] = "LZWPreDecode"; - LZWCodecState *sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - if( sp->dec_codetab == NULL ) - { - tif->tif_setupdecode( tif ); - if( sp->dec_codetab == NULL ) - return (0); - } - - /* - * Check for old bit-reversed codes. - */ - if (tif->tif_rawdata[0] == 0 && (tif->tif_rawdata[1] & 0x1)) { -#ifdef LZW_COMPAT - if (!sp->dec_decode) { - TIFFWarningExt(tif->tif_clientdata, module, - "Old-style LZW codes, convert file"); - /* - * Override default decoding methods with - * ones that deal with the old coding. - * Otherwise the predictor versions set - * above will call the compatibility routines - * through the dec_decode method. - */ - tif->tif_decoderow = LZWDecodeCompat; - tif->tif_decodestrip = LZWDecodeCompat; - tif->tif_decodetile = LZWDecodeCompat; - /* - * If doing horizontal differencing, must - * re-setup the predictor logic since we - * switched the basic decoder methods... - */ - (*tif->tif_setupdecode)(tif); - sp->dec_decode = LZWDecodeCompat; - } - sp->lzw_maxcode = MAXCODE(BITS_MIN); -#else /* !LZW_COMPAT */ - if (!sp->dec_decode) { - TIFFErrorExt(tif->tif_clientdata, module, - "Old-style LZW codes not supported"); - sp->dec_decode = LZWDecode; - } - return (0); -#endif/* !LZW_COMPAT */ - } else { - sp->lzw_maxcode = MAXCODE(BITS_MIN)-1; - sp->dec_decode = LZWDecode; - } - sp->lzw_nbits = BITS_MIN; - sp->lzw_nextbits = 0; - sp->lzw_nextdata = 0; - - sp->dec_restart = 0; - sp->dec_nbitsmask = MAXCODE(BITS_MIN); -#ifdef LZW_CHECKEOS - sp->dec_bitsleft = ((uint64)tif->tif_rawcc) << 3; -#endif - sp->dec_free_entp = sp->dec_codetab + CODE_FIRST; - /* - * Zero entries that are not yet filled in. We do - * this to guard against bogus input data that causes - * us to index into undefined entries. If you can - * come up with a way to safely bounds-check input codes - * while decoding then you can remove this operation. - */ - _TIFFmemset(sp->dec_free_entp, 0, (CSIZE-CODE_FIRST)*sizeof (code_t)); - sp->dec_oldcodep = &sp->dec_codetab[-1]; - sp->dec_maxcodep = &sp->dec_codetab[sp->dec_nbitsmask-1]; - return (1); -} - -/* - * Decode a "hunk of data". - */ -#define GetNextCode(sp, bp, code) { \ - nextdata = (nextdata<<8) | *(bp)++; \ - nextbits += 8; \ - if (nextbits < nbits) { \ - nextdata = (nextdata<<8) | *(bp)++; \ - nextbits += 8; \ - } \ - code = (hcode_t)((nextdata >> (nextbits-nbits)) & nbitsmask); \ - nextbits -= nbits; \ -} - -static void -codeLoop(TIFF* tif, const char* module) -{ - TIFFErrorExt(tif->tif_clientdata, module, - "Bogus encoding, loop in the code table; scanline %d", - tif->tif_row); -} - -static int -LZWDecode(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s) -{ - static const char module[] = "LZWDecode"; - LZWCodecState *sp = DecoderState(tif); - char *op = (char*) op0; - long occ = (long) occ0; - char *tp; - unsigned char *bp; - hcode_t code; - int len; - long nbits, nextbits, nextdata, nbitsmask; - code_t *codep, *free_entp, *maxcodep, *oldcodep; - - (void) s; - assert(sp != NULL); - assert(sp->dec_codetab != NULL); - - /* - Fail if value does not fit in long. - */ - if ((tmsize_t) occ != occ0) - return (0); - /* - * Restart interrupted output operation. - */ - if (sp->dec_restart) { - long residue; - - codep = sp->dec_codep; - residue = codep->length - sp->dec_restart; - if (residue > occ) { - /* - * Residue from previous decode is sufficient - * to satisfy decode request. Skip to the - * start of the decoded string, place decoded - * values in the output buffer, and return. - */ - sp->dec_restart += occ; - do { - codep = codep->next; - } while (--residue > occ && codep); - if (codep) { - tp = op + occ; - do { - *--tp = codep->value; - codep = codep->next; - } while (--occ && codep); - } - return (1); - } - /* - * Residue satisfies only part of the decode request. - */ - op += residue, occ -= residue; - tp = op; - do { - int t; - --tp; - t = codep->value; - codep = codep->next; - *tp = t; - } while (--residue && codep); - sp->dec_restart = 0; - } - - bp = (unsigned char *)tif->tif_rawcp; - nbits = sp->lzw_nbits; - nextdata = sp->lzw_nextdata; - nextbits = sp->lzw_nextbits; - nbitsmask = sp->dec_nbitsmask; - oldcodep = sp->dec_oldcodep; - free_entp = sp->dec_free_entp; - maxcodep = sp->dec_maxcodep; - - while (occ > 0) { - NextCode(tif, sp, bp, code, GetNextCode); - if (code == CODE_EOI) - break; - if (code == CODE_CLEAR) { - free_entp = sp->dec_codetab + CODE_FIRST; - _TIFFmemset(free_entp, 0, - (CSIZE - CODE_FIRST) * sizeof (code_t)); - nbits = BITS_MIN; - nbitsmask = MAXCODE(BITS_MIN); - maxcodep = sp->dec_codetab + nbitsmask-1; - NextCode(tif, sp, bp, code, GetNextCode); - if (code == CODE_EOI) - break; - if (code >= CODE_CLEAR) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "LZWDecode: Corrupted LZW table at scanline %d", - tif->tif_row); - return (0); - } - *op++ = (char)code, occ--; - oldcodep = sp->dec_codetab + code; - continue; - } - codep = sp->dec_codetab + code; - - /* - * Add the new entry to the code table. - */ - if (free_entp < &sp->dec_codetab[0] || - free_entp >= &sp->dec_codetab[CSIZE]) { - TIFFErrorExt(tif->tif_clientdata, module, - "Corrupted LZW table at scanline %d", - tif->tif_row); - return (0); - } - - free_entp->next = oldcodep; - if (free_entp->next < &sp->dec_codetab[0] || - free_entp->next >= &sp->dec_codetab[CSIZE]) { - TIFFErrorExt(tif->tif_clientdata, module, - "Corrupted LZW table at scanline %d", - tif->tif_row); - return (0); - } - free_entp->firstchar = free_entp->next->firstchar; - free_entp->length = free_entp->next->length+1; - free_entp->value = (codep < free_entp) ? - codep->firstchar : free_entp->firstchar; - if (++free_entp > maxcodep) { - if (++nbits > BITS_MAX) /* should not happen */ - nbits = BITS_MAX; - nbitsmask = MAXCODE(nbits); - maxcodep = sp->dec_codetab + nbitsmask-1; - } - oldcodep = codep; - if (code >= 256) { - /* - * Code maps to a string, copy string - * value to output (written in reverse). - */ - if(codep->length == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Wrong length of decoded string: " - "data probably corrupted at scanline %d", - tif->tif_row); - return (0); - } - if (codep->length > occ) { - /* - * String is too long for decode buffer, - * locate portion that will fit, copy to - * the decode buffer, and setup restart - * logic for the next decoding call. - */ - sp->dec_codep = codep; - do { - codep = codep->next; - } while (codep && codep->length > occ); - if (codep) { - sp->dec_restart = (long)occ; - tp = op + occ; - do { - *--tp = codep->value; - codep = codep->next; - } while (--occ && codep); - if (codep) - codeLoop(tif, module); - } - break; - } - len = codep->length; - tp = op + len; - do { - int t; - --tp; - t = codep->value; - codep = codep->next; - *tp = t; - } while (codep && tp > op); - if (codep) { - codeLoop(tif, module); - break; - } - assert(occ >= len); - op += len, occ -= len; - } else - *op++ = (char)code, occ--; - } - - tif->tif_rawcp = (uint8*) bp; - sp->lzw_nbits = (unsigned short) nbits; - sp->lzw_nextdata = nextdata; - sp->lzw_nextbits = nextbits; - sp->dec_nbitsmask = nbitsmask; - sp->dec_oldcodep = oldcodep; - sp->dec_free_entp = free_entp; - sp->dec_maxcodep = maxcodep; - - if (occ > 0) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %d (short %I64d bytes)", - tif->tif_row, (unsigned __int64) occ); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %d (short %llu bytes)", - tif->tif_row, (unsigned long long) occ); -#endif - return (0); - } - return (1); -} - -#ifdef LZW_COMPAT -/* - * Decode a "hunk of data" for old images. - */ -#define GetNextCodeCompat(sp, bp, code) { \ - nextdata |= (unsigned long) *(bp)++ << nextbits; \ - nextbits += 8; \ - if (nextbits < nbits) { \ - nextdata |= (unsigned long) *(bp)++ << nextbits;\ - nextbits += 8; \ - } \ - code = (hcode_t)(nextdata & nbitsmask); \ - nextdata >>= nbits; \ - nextbits -= nbits; \ -} - -static int -LZWDecodeCompat(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s) -{ - static const char module[] = "LZWDecodeCompat"; - LZWCodecState *sp = DecoderState(tif); - char *op = (char*) op0; - long occ = (long) occ0; - char *tp; - unsigned char *bp; - int code, nbits; - long nextbits, nextdata, nbitsmask; - code_t *codep, *free_entp, *maxcodep, *oldcodep; - - (void) s; - assert(sp != NULL); - - /* - Fail if value does not fit in long. - */ - if ((tmsize_t) occ != occ0) - return (0); - - /* - * Restart interrupted output operation. - */ - if (sp->dec_restart) { - long residue; - - codep = sp->dec_codep; - residue = codep->length - sp->dec_restart; - if (residue > occ) { - /* - * Residue from previous decode is sufficient - * to satisfy decode request. Skip to the - * start of the decoded string, place decoded - * values in the output buffer, and return. - */ - sp->dec_restart += occ; - do { - codep = codep->next; - } while (--residue > occ); - tp = op + occ; - do { - *--tp = codep->value; - codep = codep->next; - } while (--occ); - return (1); - } - /* - * Residue satisfies only part of the decode request. - */ - op += residue, occ -= residue; - tp = op; - do { - *--tp = codep->value; - codep = codep->next; - } while (--residue); - sp->dec_restart = 0; - } - - bp = (unsigned char *)tif->tif_rawcp; - nbits = sp->lzw_nbits; - nextdata = sp->lzw_nextdata; - nextbits = sp->lzw_nextbits; - nbitsmask = sp->dec_nbitsmask; - oldcodep = sp->dec_oldcodep; - free_entp = sp->dec_free_entp; - maxcodep = sp->dec_maxcodep; - - while (occ > 0) { - NextCode(tif, sp, bp, code, GetNextCodeCompat); - if (code == CODE_EOI) - break; - if (code == CODE_CLEAR) { - free_entp = sp->dec_codetab + CODE_FIRST; - _TIFFmemset(free_entp, 0, - (CSIZE - CODE_FIRST) * sizeof (code_t)); - nbits = BITS_MIN; - nbitsmask = MAXCODE(BITS_MIN); - maxcodep = sp->dec_codetab + nbitsmask; - NextCode(tif, sp, bp, code, GetNextCodeCompat); - if (code == CODE_EOI) - break; - if (code >= CODE_CLEAR) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "LZWDecode: Corrupted LZW table at scanline %d", - tif->tif_row); - return (0); - } - *op++ = code, occ--; - oldcodep = sp->dec_codetab + code; - continue; - } - codep = sp->dec_codetab + code; - - /* - * Add the new entry to the code table. - */ - if (free_entp < &sp->dec_codetab[0] || - free_entp >= &sp->dec_codetab[CSIZE]) { - TIFFErrorExt(tif->tif_clientdata, module, - "Corrupted LZW table at scanline %d", tif->tif_row); - return (0); - } - - free_entp->next = oldcodep; - if (free_entp->next < &sp->dec_codetab[0] || - free_entp->next >= &sp->dec_codetab[CSIZE]) { - TIFFErrorExt(tif->tif_clientdata, module, - "Corrupted LZW table at scanline %d", tif->tif_row); - return (0); - } - free_entp->firstchar = free_entp->next->firstchar; - free_entp->length = free_entp->next->length+1; - free_entp->value = (codep < free_entp) ? - codep->firstchar : free_entp->firstchar; - if (++free_entp > maxcodep) { - if (++nbits > BITS_MAX) /* should not happen */ - nbits = BITS_MAX; - nbitsmask = MAXCODE(nbits); - maxcodep = sp->dec_codetab + nbitsmask; - } - oldcodep = codep; - if (code >= 256) { - /* - * Code maps to a string, copy string - * value to output (written in reverse). - */ - if(codep->length == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Wrong length of decoded " - "string: data probably corrupted at scanline %d", - tif->tif_row); - return (0); - } - if (codep->length > occ) { - /* - * String is too long for decode buffer, - * locate portion that will fit, copy to - * the decode buffer, and setup restart - * logic for the next decoding call. - */ - sp->dec_codep = codep; - do { - codep = codep->next; - } while (codep->length > occ); - sp->dec_restart = occ; - tp = op + occ; - do { - *--tp = codep->value; - codep = codep->next; - } while (--occ); - break; - } - assert(occ >= codep->length); - op += codep->length, occ -= codep->length; - tp = op; - do { - *--tp = codep->value; - } while( (codep = codep->next) != NULL ); - } else - *op++ = code, occ--; - } - - tif->tif_rawcp = (uint8*) bp; - sp->lzw_nbits = nbits; - sp->lzw_nextdata = nextdata; - sp->lzw_nextbits = nextbits; - sp->dec_nbitsmask = nbitsmask; - sp->dec_oldcodep = oldcodep; - sp->dec_free_entp = free_entp; - sp->dec_maxcodep = maxcodep; - - if (occ > 0) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %d (short %I64d bytes)", - tif->tif_row, (unsigned __int64) occ); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %d (short %llu bytes)", - tif->tif_row, (unsigned long long) occ); -#endif - return (0); - } - return (1); -} -#endif /* LZW_COMPAT */ - -/* - * LZW Encoding. - */ - -static int -LZWSetupEncode(TIFF* tif) -{ - static const char module[] = "LZWSetupEncode"; - LZWCodecState* sp = EncoderState(tif); - - assert(sp != NULL); - sp->enc_hashtab = (hash_t*) _TIFFmalloc(HSIZE*sizeof (hash_t)); - if (sp->enc_hashtab == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, - "No space for LZW hash table"); - return (0); - } - return (1); -} - -/* - * Reset encoding state at the start of a strip. - */ -static int -LZWPreEncode(TIFF* tif, uint16 s) -{ - LZWCodecState *sp = EncoderState(tif); - - (void) s; - assert(sp != NULL); - - if( sp->enc_hashtab == NULL ) - { - tif->tif_setupencode( tif ); - } - - sp->lzw_nbits = BITS_MIN; - sp->lzw_maxcode = MAXCODE(BITS_MIN); - sp->lzw_free_ent = CODE_FIRST; - sp->lzw_nextbits = 0; - sp->lzw_nextdata = 0; - sp->enc_checkpoint = CHECK_GAP; - sp->enc_ratio = 0; - sp->enc_incount = 0; - sp->enc_outcount = 0; - /* - * The 4 here insures there is space for 2 max-sized - * codes in LZWEncode and LZWPostDecode. - */ - sp->enc_rawlimit = tif->tif_rawdata + tif->tif_rawdatasize-1 - 4; - cl_hash(sp); /* clear hash table */ - sp->enc_oldcode = (hcode_t) -1; /* generates CODE_CLEAR in LZWEncode */ - return (1); -} - -#define CALCRATIO(sp, rat) { \ - if (incount > 0x007fffff) { /* NB: shift will overflow */\ - rat = outcount >> 8; \ - rat = (rat == 0 ? 0x7fffffff : incount/rat); \ - } else \ - rat = (incount<<8) / outcount; \ -} -#define PutNextCode(op, c) { \ - nextdata = (nextdata << nbits) | c; \ - nextbits += nbits; \ - *op++ = (unsigned char)(nextdata >> (nextbits-8)); \ - nextbits -= 8; \ - if (nextbits >= 8) { \ - *op++ = (unsigned char)(nextdata >> (nextbits-8)); \ - nextbits -= 8; \ - } \ - outcount += nbits; \ -} - -/* - * Encode a chunk of pixels. - * - * Uses an open addressing double hashing (no chaining) on the - * prefix code/next character combination. We do a variant of - * Knuth's algorithm D (vol. 3, sec. 6.4) along with G. Knott's - * relatively-prime secondary probe. Here, the modular division - * first probe is gives way to a faster exclusive-or manipulation. - * Also do block compression with an adaptive reset, whereby the - * code table is cleared when the compression ratio decreases, - * but after the table fills. The variable-length output codes - * are re-sized at this point, and a CODE_CLEAR is generated - * for the decoder. - */ -static int -LZWEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - register LZWCodecState *sp = EncoderState(tif); - register long fcode; - register hash_t *hp; - register int h, c; - hcode_t ent; - long disp; - long incount, outcount, checkpoint; - long nextdata, nextbits; - int free_ent, maxcode, nbits; - uint8* op; - uint8* limit; - - (void) s; - if (sp == NULL) - return (0); - - assert(sp->enc_hashtab != NULL); - - /* - * Load local state. - */ - incount = sp->enc_incount; - outcount = sp->enc_outcount; - checkpoint = sp->enc_checkpoint; - nextdata = sp->lzw_nextdata; - nextbits = sp->lzw_nextbits; - free_ent = sp->lzw_free_ent; - maxcode = sp->lzw_maxcode; - nbits = sp->lzw_nbits; - op = tif->tif_rawcp; - limit = sp->enc_rawlimit; - ent = sp->enc_oldcode; - - if (ent == (hcode_t) -1 && cc > 0) { - /* - * NB: This is safe because it can only happen - * at the start of a strip where we know there - * is space in the data buffer. - */ - PutNextCode(op, CODE_CLEAR); - ent = *bp++; cc--; incount++; - } - while (cc > 0) { - c = *bp++; cc--; incount++; - fcode = ((long)c << BITS_MAX) + ent; - h = (c << HSHIFT) ^ ent; /* xor hashing */ -#ifdef _WINDOWS - /* - * Check hash index for an overflow. - */ - if (h >= HSIZE) - h -= HSIZE; -#endif - hp = &sp->enc_hashtab[h]; - if (hp->hash == fcode) { - ent = hp->code; - continue; - } - if (hp->hash >= 0) { - /* - * Primary hash failed, check secondary hash. - */ - disp = HSIZE - h; - if (h == 0) - disp = 1; - do { - /* - * Avoid pointer arithmetic 'cuz of - * wraparound problems with segments. - */ - if ((h -= disp) < 0) - h += HSIZE; - hp = &sp->enc_hashtab[h]; - if (hp->hash == fcode) { - ent = hp->code; - goto hit; - } - } while (hp->hash >= 0); - } - /* - * New entry, emit code and add to table. - */ - /* - * Verify there is space in the buffer for the code - * and any potential Clear code that might be emitted - * below. The value of limit is setup so that there - * are at least 4 bytes free--room for 2 codes. - */ - if (op > limit) { - tif->tif_rawcc = (tmsize_t)(op - tif->tif_rawdata); - TIFFFlushData1(tif); - op = tif->tif_rawdata; - } - PutNextCode(op, ent); - ent = c; - hp->code = free_ent++; - hp->hash = fcode; - if (free_ent == CODE_MAX-1) { - /* table is full, emit clear code and reset */ - cl_hash(sp); - sp->enc_ratio = 0; - incount = 0; - outcount = 0; - free_ent = CODE_FIRST; - PutNextCode(op, CODE_CLEAR); - nbits = BITS_MIN; - maxcode = MAXCODE(BITS_MIN); - } else { - /* - * If the next entry is going to be too big for - * the code size, then increase it, if possible. - */ - if (free_ent > maxcode) { - nbits++; - assert(nbits <= BITS_MAX); - maxcode = (int) MAXCODE(nbits); - } else if (incount >= checkpoint) { - long rat; - /* - * Check compression ratio and, if things seem - * to be slipping, clear the hash table and - * reset state. The compression ratio is a - * 24+8-bit fractional number. - */ - checkpoint = incount+CHECK_GAP; - CALCRATIO(sp, rat); - if (rat <= sp->enc_ratio) { - cl_hash(sp); - sp->enc_ratio = 0; - incount = 0; - outcount = 0; - free_ent = CODE_FIRST; - PutNextCode(op, CODE_CLEAR); - nbits = BITS_MIN; - maxcode = MAXCODE(BITS_MIN); - } else - sp->enc_ratio = rat; - } - } - hit: - ; - } - - /* - * Restore global state. - */ - sp->enc_incount = incount; - sp->enc_outcount = outcount; - sp->enc_checkpoint = checkpoint; - sp->enc_oldcode = ent; - sp->lzw_nextdata = nextdata; - sp->lzw_nextbits = nextbits; - sp->lzw_free_ent = free_ent; - sp->lzw_maxcode = maxcode; - sp->lzw_nbits = nbits; - tif->tif_rawcp = op; - return (1); -} - -/* - * Finish off an encoded strip by flushing the last - * string and tacking on an End Of Information code. - */ -static int -LZWPostEncode(TIFF* tif) -{ - register LZWCodecState *sp = EncoderState(tif); - uint8* op = tif->tif_rawcp; - long nextbits = sp->lzw_nextbits; - long nextdata = sp->lzw_nextdata; - long outcount = sp->enc_outcount; - int nbits = sp->lzw_nbits; - - if (op > sp->enc_rawlimit) { - tif->tif_rawcc = (tmsize_t)(op - tif->tif_rawdata); - TIFFFlushData1(tif); - op = tif->tif_rawdata; - } - if (sp->enc_oldcode != (hcode_t) -1) { - PutNextCode(op, sp->enc_oldcode); - sp->enc_oldcode = (hcode_t) -1; - } - PutNextCode(op, CODE_EOI); - if (nextbits > 0) - *op++ = (unsigned char)(nextdata << (8-nextbits)); - tif->tif_rawcc = (tmsize_t)(op - tif->tif_rawdata); - return (1); -} - -/* - * Reset encoding hash table. - */ -static void -cl_hash(LZWCodecState* sp) -{ - register hash_t *hp = &sp->enc_hashtab[HSIZE-1]; - register long i = HSIZE-8; - - do { - i -= 8; - hp[-7].hash = -1; - hp[-6].hash = -1; - hp[-5].hash = -1; - hp[-4].hash = -1; - hp[-3].hash = -1; - hp[-2].hash = -1; - hp[-1].hash = -1; - hp[ 0].hash = -1; - hp -= 8; - } while (i >= 0); - for (i += 8; i > 0; i--, hp--) - hp->hash = -1; -} - -static void -LZWCleanup(TIFF* tif) -{ - (void)TIFFPredictorCleanup(tif); - - assert(tif->tif_data != 0); - - if (DecoderState(tif)->dec_codetab) - _TIFFfree(DecoderState(tif)->dec_codetab); - - if (EncoderState(tif)->enc_hashtab) - _TIFFfree(EncoderState(tif)->enc_hashtab); - - _TIFFfree(tif->tif_data); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -int -TIFFInitLZW(TIFF* tif, int scheme) -{ - static const char module[] = "TIFFInitLZW"; - assert(scheme == COMPRESSION_LZW); - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof (LZWCodecState)); - if (tif->tif_data == NULL) - goto bad; - DecoderState(tif)->dec_codetab = NULL; - DecoderState(tif)->dec_decode = NULL; - EncoderState(tif)->enc_hashtab = NULL; - LZWState(tif)->rw_mode = tif->tif_mode; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = LZWFixupTags; - tif->tif_setupdecode = LZWSetupDecode; - tif->tif_predecode = LZWPreDecode; - tif->tif_decoderow = LZWDecode; - tif->tif_decodestrip = LZWDecode; - tif->tif_decodetile = LZWDecode; - tif->tif_setupencode = LZWSetupEncode; - tif->tif_preencode = LZWPreEncode; - tif->tif_postencode = LZWPostEncode; - tif->tif_encoderow = LZWEncode; - tif->tif_encodestrip = LZWEncode; - tif->tif_encodetile = LZWEncode; - tif->tif_cleanup = LZWCleanup; - /* - * Setup predictor setup. - */ - (void) TIFFPredictorInit(tif); - return (1); -bad: - TIFFErrorExt(tif->tif_clientdata, module, - "No space for LZW state block"); - return (0); -} - -/* - * Copyright (c) 1985, 1986 The Regents of the University of California. - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * James A. Woods, derived from original work by Spencer Thomas - * and Joseph Orost. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#endif /* LZW_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_next.c b/tiff/libtiff/tif_next.c deleted file mode 100755 index 17e0311..0000000 --- a/tiff/libtiff/tif_next.c +++ /dev/null @@ -1,181 +0,0 @@ -/* $Id: tif_next.c,v 1.16 2014-12-29 12:09:11 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef NEXT_SUPPORT -/* - * TIFF Library. - * - * NeXT 2-bit Grey Scale Compression Algorithm Support - */ - -#define SETPIXEL(op, v) { \ - switch (npixels++ & 3) { \ - case 0: op[0] = (unsigned char) ((v) << 6); break; \ - case 1: op[0] |= (v) << 4; break; \ - case 2: op[0] |= (v) << 2; break; \ - case 3: *op++ |= (v); break; \ - } \ -} - -#define LITERALROW 0x00 -#define LITERALSPAN 0x40 -#define WHITE ((1<<2)-1) - -static int -NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - static const char module[] = "NeXTDecode"; - unsigned char *bp, *op; - tmsize_t cc; - uint8* row; - tmsize_t scanline, n; - - (void) s; - /* - * Each scanline is assumed to start off as all - * white (we assume a PhotometricInterpretation - * of ``min-is-black''). - */ - for (op = (unsigned char*) buf, cc = occ; cc-- > 0;) - *op++ = 0xff; - - bp = (unsigned char *)tif->tif_rawcp; - cc = tif->tif_rawcc; - scanline = tif->tif_scanlinesize; - if (occ % scanline) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (0); - } - for (row = buf; cc > 0 && occ > 0; occ -= scanline, row += scanline) { - n = *bp++, cc--; - switch (n) { - case LITERALROW: - /* - * The entire scanline is given as literal values. - */ - if (cc < scanline) - goto bad; - _TIFFmemcpy(row, bp, scanline); - bp += scanline; - cc -= scanline; - break; - case LITERALSPAN: { - tmsize_t off; - /* - * The scanline has a literal span that begins at some - * offset. - */ - if( cc < 4 ) - goto bad; - off = (bp[0] * 256) + bp[1]; - n = (bp[2] * 256) + bp[3]; - if (cc < 4+n || off+n > scanline) - goto bad; - _TIFFmemcpy(row+off, bp+4, n); - bp += 4+n; - cc -= 4+n; - break; - } - default: { - uint32 npixels = 0, grey; - uint32 imagewidth = tif->tif_dir.td_imagewidth; - if( isTiled(tif) ) - imagewidth = tif->tif_dir.td_tilewidth; - - /* - * The scanline is composed of a sequence of constant - * color ``runs''. We shift into ``run mode'' and - * interpret bytes as codes of the form - * until we've filled the scanline. - */ - op = row; - for (;;) { - grey = (uint32)((n>>6) & 0x3); - n &= 0x3f; - /* - * Ensure the run does not exceed the scanline - * bounds, potentially resulting in a security - * issue. - */ - while (n-- > 0 && npixels < imagewidth) - SETPIXEL(op, grey); - if (npixels >= imagewidth) - break; - if (cc == 0) - goto bad; - n = *bp++, cc--; - } - break; - } - } - } - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - return (1); -bad: - TIFFErrorExt(tif->tif_clientdata, module, "Not enough data for scanline %ld", - (long) tif->tif_row); - return (0); -} - -static int -NeXTPreDecode(TIFF* tif, uint16 s) -{ - static const char module[] = "NeXTPreDecode"; - TIFFDirectory *td = &tif->tif_dir; - (void)s; - - if( td->td_bitspersample != 2 ) - { - TIFFErrorExt(tif->tif_clientdata, module, "Unsupported BitsPerSample = %d", - td->td_bitspersample); - return (0); - } - return (1); -} - -int -TIFFInitNeXT(TIFF* tif, int scheme) -{ - (void) scheme; - tif->tif_predecode = NeXTPreDecode; - tif->tif_decoderow = NeXTDecode; - tif->tif_decodestrip = NeXTDecode; - tif->tif_decodetile = NeXTDecode; - return (1); -} -#endif /* NEXT_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_ojpeg.c b/tiff/libtiff/tif_ojpeg.c deleted file mode 100755 index 61f4221..0000000 --- a/tiff/libtiff/tif_ojpeg.c +++ /dev/null @@ -1,2501 +0,0 @@ -/* $Id: tif_ojpeg.c,v 1.58 2014-12-25 18:29:11 erouault Exp $ */ - -/* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0 - specification is now totally obsolete and deprecated for new applications and - images. This file was was created solely in order to read unconverted images - still present on some users' computer systems. It will never be extended - to write such files. Writing new-style JPEG compressed TIFFs is implemented - in tif_jpeg.c. - - The code is carefully crafted to robustly read all gathered JPEG-in-TIFF - testfiles, and anticipate as much as possible all other... But still, it may - fail on some. If you encounter problems, please report them on the TIFF - mailing list and/or to Joris Van Damme . - - Please read the file called "TIFF Technical Note #2" if you need to be - convinced this compression scheme is bad and breaks TIFF. That document - is linked to from the LibTiff site - and from AWare Systems' TIFF section - . It is also absorbed - in Adobe's specification supplements, marked "draft" up to this day, but - supported by the TIFF community. - - This file interfaces with Release 6B of the JPEG Library written by the - Independent JPEG Group. Previous versions of this file required a hack inside - the LibJpeg library. This version no longer requires that. Remember to - remove the hack if you update from the old version. - - Copyright (c) Joris Van Damme - Copyright (c) AWare Systems - - The licence agreement for this file is the same as the rest of the LibTiff - library. - - IN NO EVENT SHALL JORIS VAN DAMME OR AWARE SYSTEMS BE LIABLE FOR - ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - OF THIS SOFTWARE. - - Joris Van Damme and/or AWare Systems may be available for custom - development. If you like what you see, and need anything similar or related, - contact . -*/ - -/* What is what, and what is not? - - This decoder starts with an input stream, that is essentially the JpegInterchangeFormat - stream, if any, followed by the strile data, if any. This stream is read in - OJPEGReadByte and related functions. - - It analyzes the start of this stream, until it encounters non-marker data, i.e. - compressed image data. Some of the header markers it sees have no actual content, - like the SOI marker, and APP/COM markers that really shouldn't even be there. Some - other markers do have content, and the valuable bits and pieces of information - in these markers are saved, checking all to verify that the stream is more or - less within expected bounds. This happens inside the OJPEGReadHeaderInfoSecStreamXxx - functions. - - Some OJPEG imagery contains no valid JPEG header markers. This situation is picked - up on if we've seen no SOF marker when we're at the start of the compressed image - data. In this case, the tables are read from JpegXxxTables tags, and the other - bits and pieces of information is initialized to its most basic value. This is - implemented in the OJPEGReadHeaderInfoSecTablesXxx functions. - - When this is complete, a good and valid JPEG header can be assembled, and this is - passed through to LibJpeg. When that's done, the remainder of the input stream, i.e. - the compressed image data, can be passed through unchanged. This is done in - OJPEGWriteStream functions. - - LibTiff rightly expects to know the subsampling values before decompression. Just like - in new-style JPEG-in-TIFF, though, or even more so, actually, the YCbCrsubsampling - tag is notoriously unreliable. To correct these tag values with the ones inside - the JPEG stream, the first part of the input stream is pre-scanned in - OJPEGSubsamplingCorrect, making no note of any other data, reporting no warnings - or errors, up to the point where either these values are read, or it's clear they - aren't there. This means that some of the data is read twice, but we feel speed - in correcting these values is important enough to warrant this sacrifice. Allthough - there is currently no define or other configuration mechanism to disable this behaviour, - the actual header scanning is build to robustly respond with error report if it - should encounter an uncorrected mismatch of subsampling values. See - OJPEGReadHeaderInfoSecStreamSof. - - The restart interval and restart markers are the most tricky part... The restart - interval can be specified in a tag. It can also be set inside the input JPEG stream. - It can be used inside the input JPEG stream. If reading from strile data, we've - consistenly discovered the need to insert restart markers in between the different - striles, as is also probably the most likely interpretation of the original TIFF 6.0 - specification. With all this setting of interval, and actual use of markers that is not - predictable at the time of valid JPEG header assembly, the restart thing may turn - out the Achilles heel of this implementation. Fortunately, most OJPEG writer vendors - succeed in reading back what they write, which may be the reason why we've been able - to discover ways that seem to work. - - Some special provision is made for planarconfig separate OJPEG files. These seem - to consistently contain header info, a SOS marker, a plane, SOS marker, plane, SOS, - and plane. This may or may not be a valid JPEG configuration, we don't know and don't - care. We want LibTiff to be able to access the planes individually, without huge - buffering inside LibJpeg, anyway. So we compose headers to feed to LibJpeg, in this - case, that allow us to pass a single plane such that LibJpeg sees a valid - single-channel JPEG stream. Locating subsequent SOS markers, and thus subsequent - planes, is done inside OJPEGReadSecondarySos. - - The benefit of the scheme is... that it works, basically. We know of no other that - does. It works without checking software tag, or otherwise going about things in an - OJPEG flavor specific manner. Instead, it is a single scheme, that covers the cases - with and without JpegInterchangeFormat, with and without striles, with part of - the header in JpegInterchangeFormat and remainder in first strile, etc. It is forgiving - and robust, may likely work with OJPEG flavors we've not seen yet, and makes most out - of the data. - - Another nice side-effect is that a complete JPEG single valid stream is build if - planarconfig is not separate (vast majority). We may one day use that to build - converters to JPEG, and/or to new-style JPEG compression inside TIFF. - - A dissadvantage is the lack of random access to the individual striles. This is the - reason for much of the complicated restart-and-position stuff inside OJPEGPreDecode. - Applications would do well accessing all striles in order, as this will result in - a single sequential scan of the input stream, and no restarting of LibJpeg decoding - session. -*/ - -#define WIN32_LEAN_AND_MEAN -#define VC_EXTRALEAN - -#include "tiffiop.h" -#ifdef OJPEG_SUPPORT - -/* Configuration defines here are: - * JPEG_ENCAP_EXTERNAL: The normal way to call libjpeg, uses longjump. In some environments, - * like eg LibTiffDelphi, this is not possible. For this reason, the actual calls to - * libjpeg, with longjump stuff, are encapsulated in dedicated functions. When - * JPEG_ENCAP_EXTERNAL is defined, these encapsulating functions are declared external - * to this unit, and can be defined elsewhere to use stuff other then longjump. - * The default mode, without JPEG_ENCAP_EXTERNAL, implements the call encapsulators - * here, internally, with normal longjump. - * SETJMP, LONGJMP, JMP_BUF: On some machines/environments a longjump equivalent is - * conviniently available, but still it may be worthwhile to use _setjmp or sigsetjmp - * in place of plain setjmp. These macros will make it easier. It is useless - * to fiddle with these if you define JPEG_ENCAP_EXTERNAL. - * OJPEG_BUFFER: Define the size of the desired buffer here. Should be small enough so as to guarantee - * instant processing, optimal streaming and optimal use of processor cache, but also big - * enough so as to not result in significant call overhead. It should be at least a few - * bytes to accommodate some structures (this is verified in asserts), but it would not be - * sensible to make it this small anyway, and it should be at most 64K since it is indexed - * with uint16. We recommend 2K. - * EGYPTIANWALK: You could also define EGYPTIANWALK here, but it is not used anywhere and has - * absolutely no effect. That is why most people insist the EGYPTIANWALK is a bit silly. - */ - -/* define LIBJPEG_ENCAP_EXTERNAL */ -#define SETJMP(jbuf) setjmp(jbuf) -#define LONGJMP(jbuf,code) longjmp(jbuf,code) -#define JMP_BUF jmp_buf -#define OJPEG_BUFFER 2048 -/* define EGYPTIANWALK */ - -#define JPEG_MARKER_SOF0 0xC0 -#define JPEG_MARKER_SOF1 0xC1 -#define JPEG_MARKER_SOF3 0xC3 -#define JPEG_MARKER_DHT 0xC4 -#define JPEG_MARKER_RST0 0XD0 -#define JPEG_MARKER_SOI 0xD8 -#define JPEG_MARKER_EOI 0xD9 -#define JPEG_MARKER_SOS 0xDA -#define JPEG_MARKER_DQT 0xDB -#define JPEG_MARKER_DRI 0xDD -#define JPEG_MARKER_APP0 0xE0 -#define JPEG_MARKER_COM 0xFE - -#define FIELD_OJPEG_JPEGINTERCHANGEFORMAT (FIELD_CODEC+0) -#define FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH (FIELD_CODEC+1) -#define FIELD_OJPEG_JPEGQTABLES (FIELD_CODEC+2) -#define FIELD_OJPEG_JPEGDCTABLES (FIELD_CODEC+3) -#define FIELD_OJPEG_JPEGACTABLES (FIELD_CODEC+4) -#define FIELD_OJPEG_JPEGPROC (FIELD_CODEC+5) -#define FIELD_OJPEG_JPEGRESTARTINTERVAL (FIELD_CODEC+6) - -static const TIFFField ojpegFields[] = { - {TIFFTAG_JPEGIFOFFSET,1,1,TIFF_LONG8,0,TIFF_SETGET_UINT64,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGINTERCHANGEFORMAT,TRUE,FALSE,"JpegInterchangeFormat",NULL}, - {TIFFTAG_JPEGIFBYTECOUNT,1,1,TIFF_LONG8,0,TIFF_SETGET_UINT64,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH,TRUE,FALSE,"JpegInterchangeFormatLength",NULL}, - {TIFFTAG_JPEGQTABLES,TIFF_VARIABLE2,TIFF_VARIABLE2,TIFF_LONG8,0,TIFF_SETGET_C32_UINT64,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGQTABLES,FALSE,TRUE,"JpegQTables",NULL}, - {TIFFTAG_JPEGDCTABLES,TIFF_VARIABLE2,TIFF_VARIABLE2,TIFF_LONG8,0,TIFF_SETGET_C32_UINT64,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGDCTABLES,FALSE,TRUE,"JpegDcTables",NULL}, - {TIFFTAG_JPEGACTABLES,TIFF_VARIABLE2,TIFF_VARIABLE2,TIFF_LONG8,0,TIFF_SETGET_C32_UINT64,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGACTABLES,FALSE,TRUE,"JpegAcTables",NULL}, - {TIFFTAG_JPEGPROC,1,1,TIFF_SHORT,0,TIFF_SETGET_UINT16,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGPROC,FALSE,FALSE,"JpegProc",NULL}, - {TIFFTAG_JPEGRESTARTINTERVAL,1,1,TIFF_SHORT,0,TIFF_SETGET_UINT16,TIFF_SETGET_UNDEFINED,FIELD_OJPEG_JPEGRESTARTINTERVAL,FALSE,FALSE,"JpegRestartInterval",NULL}, -}; - -#ifndef LIBJPEG_ENCAP_EXTERNAL -#include -#endif - -/* We undefine FAR to avoid conflict with JPEG definition */ - -#ifdef FAR -#undef FAR -#endif - -/* - Libjpeg's jmorecfg.h defines INT16 and INT32, but only if XMD_H is - not defined. Unfortunately, the MinGW and Borland compilers include - a typedef for INT32, which causes a conflict. MSVC does not include - a conficting typedef given the headers which are included. -*/ -#if defined(__BORLANDC__) || defined(__MINGW32__) -# define XMD_H 1 -#endif - -/* Define "boolean" as unsigned char, not int, per Windows custom. */ -#if defined(__WIN32__) && !defined(__MINGW32__) -# ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ - typedef unsigned char boolean; -# endif -# define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ -#endif - -#include "jpeglib.h" -#include "jerror.h" - -typedef struct jpeg_error_mgr jpeg_error_mgr; -typedef struct jpeg_common_struct jpeg_common_struct; -typedef struct jpeg_decompress_struct jpeg_decompress_struct; -typedef struct jpeg_source_mgr jpeg_source_mgr; - -typedef enum { - osibsNotSetYet, - osibsJpegInterchangeFormat, - osibsStrile, - osibsEof -} OJPEGStateInBufferSource; - -typedef enum { - ososSoi, - ososQTable0,ososQTable1,ososQTable2,ososQTable3, - ososDcTable0,ososDcTable1,ososDcTable2,ososDcTable3, - ososAcTable0,ososAcTable1,ososAcTable2,ososAcTable3, - ososDri, - ososSof, - ososSos, - ososCompressed, - ososRst, - ososEoi -} OJPEGStateOutState; - -typedef struct { - TIFF* tif; - #ifndef LIBJPEG_ENCAP_EXTERNAL - JMP_BUF exit_jmpbuf; - #endif - TIFFVGetMethod vgetparent; - TIFFVSetMethod vsetparent; - TIFFPrintMethod printdir; - uint64 file_size; - uint32 image_width; - uint32 image_length; - uint32 strile_width; - uint32 strile_length; - uint32 strile_length_total; - uint8 samples_per_pixel; - uint8 plane_sample_offset; - uint8 samples_per_pixel_per_plane; - uint64 jpeg_interchange_format; - uint64 jpeg_interchange_format_length; - uint8 jpeg_proc; - uint8 subsamplingcorrect; - uint8 subsamplingcorrect_done; - uint8 subsampling_tag; - uint8 subsampling_hor; - uint8 subsampling_ver; - uint8 subsampling_force_desubsampling_inside_decompression; - uint8 qtable_offset_count; - uint8 dctable_offset_count; - uint8 actable_offset_count; - uint64 qtable_offset[3]; - uint64 dctable_offset[3]; - uint64 actable_offset[3]; - uint8* qtable[4]; - uint8* dctable[4]; - uint8* actable[4]; - uint16 restart_interval; - uint8 restart_index; - uint8 sof_log; - uint8 sof_marker_id; - uint32 sof_x; - uint32 sof_y; - uint8 sof_c[3]; - uint8 sof_hv[3]; - uint8 sof_tq[3]; - uint8 sos_cs[3]; - uint8 sos_tda[3]; - struct { - uint8 log; - OJPEGStateInBufferSource in_buffer_source; - uint32 in_buffer_next_strile; - uint64 in_buffer_file_pos; - uint64 in_buffer_file_togo; - } sos_end[3]; - uint8 readheader_done; - uint8 writeheader_done; - uint16 write_cursample; - uint32 write_curstrile; - uint8 libjpeg_session_active; - uint8 libjpeg_jpeg_query_style; - jpeg_error_mgr libjpeg_jpeg_error_mgr; - jpeg_decompress_struct libjpeg_jpeg_decompress_struct; - jpeg_source_mgr libjpeg_jpeg_source_mgr; - uint8 subsampling_convert_log; - uint32 subsampling_convert_ylinelen; - uint32 subsampling_convert_ylines; - uint32 subsampling_convert_clinelen; - uint32 subsampling_convert_clines; - uint32 subsampling_convert_ybuflen; - uint32 subsampling_convert_cbuflen; - uint32 subsampling_convert_ycbcrbuflen; - uint8* subsampling_convert_ycbcrbuf; - uint8* subsampling_convert_ybuf; - uint8* subsampling_convert_cbbuf; - uint8* subsampling_convert_crbuf; - uint32 subsampling_convert_ycbcrimagelen; - uint8** subsampling_convert_ycbcrimage; - uint32 subsampling_convert_clinelenout; - uint32 subsampling_convert_state; - uint32 bytes_per_line; /* if the codec outputs subsampled data, a 'line' in bytes_per_line */ - uint32 lines_per_strile; /* and lines_per_strile means subsampling_ver desubsampled rows */ - OJPEGStateInBufferSource in_buffer_source; - uint32 in_buffer_next_strile; - uint32 in_buffer_strile_count; - uint64 in_buffer_file_pos; - uint8 in_buffer_file_pos_log; - uint64 in_buffer_file_togo; - uint16 in_buffer_togo; - uint8* in_buffer_cur; - uint8 in_buffer[OJPEG_BUFFER]; - OJPEGStateOutState out_state; - uint8 out_buffer[OJPEG_BUFFER]; - uint8* skip_buffer; -} OJPEGState; - -static int OJPEGVGetField(TIFF* tif, uint32 tag, va_list ap); -static int OJPEGVSetField(TIFF* tif, uint32 tag, va_list ap); -static void OJPEGPrintDir(TIFF* tif, FILE* fd, long flags); - -static int OJPEGFixupTags(TIFF* tif); -static int OJPEGSetupDecode(TIFF* tif); -static int OJPEGPreDecode(TIFF* tif, uint16 s); -static int OJPEGPreDecodeSkipRaw(TIFF* tif); -static int OJPEGPreDecodeSkipScanlines(TIFF* tif); -static int OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int OJPEGDecodeRaw(TIFF* tif, uint8* buf, tmsize_t cc); -static int OJPEGDecodeScanlines(TIFF* tif, uint8* buf, tmsize_t cc); -static void OJPEGPostDecode(TIFF* tif, uint8* buf, tmsize_t cc); -static int OJPEGSetupEncode(TIFF* tif); -static int OJPEGPreEncode(TIFF* tif, uint16 s); -static int OJPEGEncode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s); -static int OJPEGPostEncode(TIFF* tif); -static void OJPEGCleanup(TIFF* tif); - -static void OJPEGSubsamplingCorrect(TIFF* tif); -static int OJPEGReadHeaderInfo(TIFF* tif); -static int OJPEGReadSecondarySos(TIFF* tif, uint16 s); -static int OJPEGWriteHeaderInfo(TIFF* tif); -static void OJPEGLibjpegSessionAbort(TIFF* tif); - -static int OJPEGReadHeaderInfoSec(TIFF* tif); -static int OJPEGReadHeaderInfoSecStreamDri(TIFF* tif); -static int OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif); -static int OJPEGReadHeaderInfoSecStreamDht(TIFF* tif); -static int OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id); -static int OJPEGReadHeaderInfoSecStreamSos(TIFF* tif); -static int OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif); -static int OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif); -static int OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif); - -static int OJPEGReadBufferFill(OJPEGState* sp); -static int OJPEGReadByte(OJPEGState* sp, uint8* byte); -static int OJPEGReadBytePeek(OJPEGState* sp, uint8* byte); -static void OJPEGReadByteAdvance(OJPEGState* sp); -static int OJPEGReadWord(OJPEGState* sp, uint16* word); -static int OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem); -static void OJPEGReadSkip(OJPEGState* sp, uint16 len); - -static int OJPEGWriteStream(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); -static void OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); -static void OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len); -static void OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len); -static int OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len); -static void OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len); - -#ifdef LIBJPEG_ENCAP_EXTERNAL -extern int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); -extern int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); -extern int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); -extern int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); -extern int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); -extern void jpeg_encap_unwind(TIFF* tif); -#else -static int jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* j); -static int jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image); -static int jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo); -static int jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines); -static int jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines); -static void jpeg_encap_unwind(TIFF* tif); -#endif - -static void OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo); -static void OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo); -static void OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo); -static boolean OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo); -static void OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes); -static boolean OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired); -static void OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo); - -int -TIFFInitOJPEG(TIFF* tif, int scheme) -{ - static const char module[]="TIFFInitOJPEG"; - OJPEGState* sp; - - assert(scheme==COMPRESSION_OJPEG); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, ojpegFields, TIFFArrayCount(ojpegFields))) { - TIFFErrorExt(tif->tif_clientdata, module, - "Merging Old JPEG codec-specific tags failed"); - return 0; - } - - /* state block */ - sp=_TIFFmalloc(sizeof(OJPEGState)); - if (sp==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"No space for OJPEG state block"); - return(0); - } - _TIFFmemset(sp,0,sizeof(OJPEGState)); - sp->tif=tif; - sp->jpeg_proc=1; - sp->subsampling_hor=2; - sp->subsampling_ver=2; - TIFFSetField(tif,TIFFTAG_YCBCRSUBSAMPLING,2,2); - /* tif codec methods */ - tif->tif_fixuptags=OJPEGFixupTags; - tif->tif_setupdecode=OJPEGSetupDecode; - tif->tif_predecode=OJPEGPreDecode; - tif->tif_postdecode=OJPEGPostDecode; - tif->tif_decoderow=OJPEGDecode; - tif->tif_decodestrip=OJPEGDecode; - tif->tif_decodetile=OJPEGDecode; - tif->tif_setupencode=OJPEGSetupEncode; - tif->tif_preencode=OJPEGPreEncode; - tif->tif_postencode=OJPEGPostEncode; - tif->tif_encoderow=OJPEGEncode; - tif->tif_encodestrip=OJPEGEncode; - tif->tif_encodetile=OJPEGEncode; - tif->tif_cleanup=OJPEGCleanup; - tif->tif_data=(uint8*)sp; - /* tif tag methods */ - sp->vgetparent=tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield=OJPEGVGetField; - sp->vsetparent=tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield=OJPEGVSetField; - sp->printdir=tif->tif_tagmethods.printdir; - tif->tif_tagmethods.printdir=OJPEGPrintDir; - /* Some OJPEG files don't have strip or tile offsets or bytecounts tags. - Some others do, but have totally meaningless or corrupt values - in these tags. In these cases, the JpegInterchangeFormat stream is - reliable. In any case, this decoder reads the compressed data itself, - from the most reliable locations, and we need to notify encapsulating - LibTiff not to read raw strips or tiles for us. */ - tif->tif_flags|=TIFF_NOREADRAW; - return(1); -} - -static int -OJPEGVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - switch(tag) - { - case TIFFTAG_JPEGIFOFFSET: - *va_arg(ap,uint64*)=(uint64)sp->jpeg_interchange_format; - break; - case TIFFTAG_JPEGIFBYTECOUNT: - *va_arg(ap,uint64*)=(uint64)sp->jpeg_interchange_format_length; - break; - case TIFFTAG_YCBCRSUBSAMPLING: - if (sp->subsamplingcorrect_done==0) - OJPEGSubsamplingCorrect(tif); - *va_arg(ap,uint16*)=(uint16)sp->subsampling_hor; - *va_arg(ap,uint16*)=(uint16)sp->subsampling_ver; - break; - case TIFFTAG_JPEGQTABLES: - *va_arg(ap,uint32*)=(uint32)sp->qtable_offset_count; - *va_arg(ap,void**)=(void*)sp->qtable_offset; - break; - case TIFFTAG_JPEGDCTABLES: - *va_arg(ap,uint32*)=(uint32)sp->dctable_offset_count; - *va_arg(ap,void**)=(void*)sp->dctable_offset; - break; - case TIFFTAG_JPEGACTABLES: - *va_arg(ap,uint32*)=(uint32)sp->actable_offset_count; - *va_arg(ap,void**)=(void*)sp->actable_offset; - break; - case TIFFTAG_JPEGPROC: - *va_arg(ap,uint16*)=(uint16)sp->jpeg_proc; - break; - case TIFFTAG_JPEGRESTARTINTERVAL: - *va_arg(ap,uint16*)=sp->restart_interval; - break; - default: - return (*sp->vgetparent)(tif,tag,ap); - } - return (1); -} - -static int -OJPEGVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[]="OJPEGVSetField"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint32 ma; - uint64* mb; - uint32 n; - const TIFFField* fip; - - switch(tag) - { - case TIFFTAG_JPEGIFOFFSET: - sp->jpeg_interchange_format=(uint64)va_arg(ap,uint64); - break; - case TIFFTAG_JPEGIFBYTECOUNT: - sp->jpeg_interchange_format_length=(uint64)va_arg(ap,uint64); - break; - case TIFFTAG_YCBCRSUBSAMPLING: - sp->subsampling_tag=1; - sp->subsampling_hor=(uint8)va_arg(ap,uint16_vap); - sp->subsampling_ver=(uint8)va_arg(ap,uint16_vap); - tif->tif_dir.td_ycbcrsubsampling[0]=sp->subsampling_hor; - tif->tif_dir.td_ycbcrsubsampling[1]=sp->subsampling_ver; - break; - case TIFFTAG_JPEGQTABLES: - ma=(uint32)va_arg(ap,uint32); - if (ma!=0) - { - if (ma>3) - { - TIFFErrorExt(tif->tif_clientdata,module,"JpegQTables tag has incorrect count"); - return(0); - } - sp->qtable_offset_count=(uint8)ma; - mb=(uint64*)va_arg(ap,uint64*); - for (n=0; nqtable_offset[n]=mb[n]; - } - break; - case TIFFTAG_JPEGDCTABLES: - ma=(uint32)va_arg(ap,uint32); - if (ma!=0) - { - if (ma>3) - { - TIFFErrorExt(tif->tif_clientdata,module,"JpegDcTables tag has incorrect count"); - return(0); - } - sp->dctable_offset_count=(uint8)ma; - mb=(uint64*)va_arg(ap,uint64*); - for (n=0; ndctable_offset[n]=mb[n]; - } - break; - case TIFFTAG_JPEGACTABLES: - ma=(uint32)va_arg(ap,uint32); - if (ma!=0) - { - if (ma>3) - { - TIFFErrorExt(tif->tif_clientdata,module,"JpegAcTables tag has incorrect count"); - return(0); - } - sp->actable_offset_count=(uint8)ma; - mb=(uint64*)va_arg(ap,uint64*); - for (n=0; nactable_offset[n]=mb[n]; - } - break; - case TIFFTAG_JPEGPROC: - sp->jpeg_proc=(uint8)va_arg(ap,uint16_vap); - break; - case TIFFTAG_JPEGRESTARTINTERVAL: - sp->restart_interval=(uint16)va_arg(ap,uint16_vap); - break; - default: - return (*sp->vsetparent)(tif,tag,ap); - } - fip = TIFFFieldWithTag(tif,tag); - if( fip == NULL ) /* shouldn't happen */ - return(0); - TIFFSetFieldBit(tif,fip->field_bit); - tif->tif_flags|=TIFF_DIRTYDIRECT; - return(1); -} - -static void -OJPEGPrintDir(TIFF* tif, FILE* fd, long flags) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - (void)flags; - assert(sp!=NULL); - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMAT)) - fprintf(fd," JpegInterchangeFormat: " TIFF_UINT64_FORMAT "\n",(TIFF_UINT64_T)sp->jpeg_interchange_format); - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGINTERCHANGEFORMATLENGTH)) - fprintf(fd," JpegInterchangeFormatLength: " TIFF_UINT64_FORMAT "\n",(TIFF_UINT64_T)sp->jpeg_interchange_format_length); - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGQTABLES)) - { - fprintf(fd," JpegQTables:"); - for (m=0; mqtable_offset_count; m++) - fprintf(fd," " TIFF_UINT64_FORMAT,(TIFF_UINT64_T)sp->qtable_offset[m]); - fprintf(fd,"\n"); - } - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGDCTABLES)) - { - fprintf(fd," JpegDcTables:"); - for (m=0; mdctable_offset_count; m++) - fprintf(fd," " TIFF_UINT64_FORMAT,(TIFF_UINT64_T)sp->dctable_offset[m]); - fprintf(fd,"\n"); - } - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGACTABLES)) - { - fprintf(fd," JpegAcTables:"); - for (m=0; mactable_offset_count; m++) - fprintf(fd," " TIFF_UINT64_FORMAT,(TIFF_UINT64_T)sp->actable_offset[m]); - fprintf(fd,"\n"); - } - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGPROC)) - fprintf(fd," JpegProc: %u\n",(unsigned int)sp->jpeg_proc); - if (TIFFFieldSet(tif,FIELD_OJPEG_JPEGRESTARTINTERVAL)) - fprintf(fd," JpegRestartInterval: %u\n",(unsigned int)sp->restart_interval); - if (sp->printdir) - (*sp->printdir)(tif, fd, flags); -} - -static int -OJPEGFixupTags(TIFF* tif) -{ - (void) tif; - return(1); -} - -static int -OJPEGSetupDecode(TIFF* tif) -{ - static const char module[]="OJPEGSetupDecode"; - TIFFWarningExt(tif->tif_clientdata,module,"Depreciated and troublesome old-style JPEG compression mode, please convert to new-style JPEG compression and notify vendor of writing software"); - return(1); -} - -static int -OJPEGPreDecode(TIFF* tif, uint16 s) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint32 m; - if (sp->subsamplingcorrect_done==0) - OJPEGSubsamplingCorrect(tif); - if (sp->readheader_done==0) - { - if (OJPEGReadHeaderInfo(tif)==0) - return(0); - } - if (sp->sos_end[s].log==0) - { - if (OJPEGReadSecondarySos(tif,s)==0) - return(0); - } - if isTiled(tif) - m=tif->tif_curtile; - else - m=tif->tif_curstrip; - if ((sp->writeheader_done!=0) && ((sp->write_cursample!=s) || (sp->write_curstrile>m))) - { - if (sp->libjpeg_session_active!=0) - OJPEGLibjpegSessionAbort(tif); - sp->writeheader_done=0; - } - if (sp->writeheader_done==0) - { - sp->plane_sample_offset=(uint8)s; - sp->write_cursample=s; - sp->write_curstrile=s*tif->tif_dir.td_stripsperimage; - if ((sp->in_buffer_file_pos_log==0) || - (sp->in_buffer_file_pos-sp->in_buffer_togo!=sp->sos_end[s].in_buffer_file_pos)) - { - sp->in_buffer_source=sp->sos_end[s].in_buffer_source; - sp->in_buffer_next_strile=sp->sos_end[s].in_buffer_next_strile; - sp->in_buffer_file_pos=sp->sos_end[s].in_buffer_file_pos; - sp->in_buffer_file_pos_log=0; - sp->in_buffer_file_togo=sp->sos_end[s].in_buffer_file_togo; - sp->in_buffer_togo=0; - sp->in_buffer_cur=0; - } - if (OJPEGWriteHeaderInfo(tif)==0) - return(0); - } - while (sp->write_curstrilelibjpeg_jpeg_query_style==0) - { - if (OJPEGPreDecodeSkipRaw(tif)==0) - return(0); - } - else - { - if (OJPEGPreDecodeSkipScanlines(tif)==0) - return(0); - } - sp->write_curstrile++; - } - return(1); -} - -static int -OJPEGPreDecodeSkipRaw(TIFF* tif) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint32 m; - m=sp->lines_per_strile; - if (sp->subsampling_convert_state!=0) - { - if (sp->subsampling_convert_clines-sp->subsampling_convert_state>=m) - { - sp->subsampling_convert_state+=m; - if (sp->subsampling_convert_state==sp->subsampling_convert_clines) - sp->subsampling_convert_state=0; - return(1); - } - m-=sp->subsampling_convert_clines-sp->subsampling_convert_state; - sp->subsampling_convert_state=0; - } - while (m>=sp->subsampling_convert_clines) - { - if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) - return(0); - m-=sp->subsampling_convert_clines; - } - if (m>0) - { - if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) - return(0); - sp->subsampling_convert_state=m; - } - return(1); -} - -static int -OJPEGPreDecodeSkipScanlines(TIFF* tif) -{ - static const char module[]="OJPEGPreDecodeSkipScanlines"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint32 m; - if (sp->skip_buffer==NULL) - { - sp->skip_buffer=_TIFFmalloc(sp->bytes_per_line); - if (sp->skip_buffer==NULL) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - } - for (m=0; mlines_per_strile; m++) - { - if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&sp->skip_buffer,1)==0) - return(0); - } - return(1); -} - -static int -OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - (void)s; - if (sp->libjpeg_jpeg_query_style==0) - { - if (OJPEGDecodeRaw(tif,buf,cc)==0) - return(0); - } - else - { - if (OJPEGDecodeScanlines(tif,buf,cc)==0) - return(0); - } - return(1); -} - -static int -OJPEGDecodeRaw(TIFF* tif, uint8* buf, tmsize_t cc) -{ - static const char module[]="OJPEGDecodeRaw"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8* m; - tmsize_t n; - uint8* oy; - uint8* ocb; - uint8* ocr; - uint8* p; - uint32 q; - uint8* r; - uint8 sx,sy; - if (cc%sp->bytes_per_line!=0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); - return(0); - } - assert(cc>0); - m=buf; - n=cc; - do - { - if (sp->subsampling_convert_state==0) - { - if (jpeg_read_raw_data_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),sp->subsampling_convert_ycbcrimage,sp->subsampling_ver*8)==0) - return(0); - } - oy=sp->subsampling_convert_ybuf+sp->subsampling_convert_state*sp->subsampling_ver*sp->subsampling_convert_ylinelen; - ocb=sp->subsampling_convert_cbbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; - ocr=sp->subsampling_convert_crbuf+sp->subsampling_convert_state*sp->subsampling_convert_clinelen; - p=m; - for (q=0; qsubsampling_convert_clinelenout; q++) - { - r=oy; - for (sy=0; sysubsampling_ver; sy++) - { - for (sx=0; sxsubsampling_hor; sx++) - *p++=*r++; - r+=sp->subsampling_convert_ylinelen-sp->subsampling_hor; - } - oy+=sp->subsampling_hor; - *p++=*ocb++; - *p++=*ocr++; - } - sp->subsampling_convert_state++; - if (sp->subsampling_convert_state==sp->subsampling_convert_clines) - sp->subsampling_convert_state=0; - m+=sp->bytes_per_line; - n-=sp->bytes_per_line; - } while(n>0); - return(1); -} - -static int -OJPEGDecodeScanlines(TIFF* tif, uint8* buf, tmsize_t cc) -{ - static const char module[]="OJPEGDecodeScanlines"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8* m; - tmsize_t n; - if (cc%sp->bytes_per_line!=0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Fractional scanline not read"); - return(0); - } - assert(cc>0); - m=buf; - n=cc; - do - { - if (jpeg_read_scanlines_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),&m,1)==0) - return(0); - m+=sp->bytes_per_line; - n-=sp->bytes_per_line; - } while(n>0); - return(1); -} - -static void -OJPEGPostDecode(TIFF* tif, uint8* buf, tmsize_t cc) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - (void)buf; - (void)cc; - sp->write_curstrile++; - if (sp->write_curstrile%tif->tif_dir.td_stripsperimage==0) - { - assert(sp->libjpeg_session_active!=0); - OJPEGLibjpegSessionAbort(tif); - sp->writeheader_done=0; - } -} - -static int -OJPEGSetupEncode(TIFF* tif) -{ - static const char module[]="OJPEGSetupEncode"; - TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); - return(0); -} - -static int -OJPEGPreEncode(TIFF* tif, uint16 s) -{ - static const char module[]="OJPEGPreEncode"; - (void)s; - TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); - return(0); -} - -static int -OJPEGEncode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - static const char module[]="OJPEGEncode"; - (void)buf; - (void)cc; - (void)s; - TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); - return(0); -} - -static int -OJPEGPostEncode(TIFF* tif) -{ - static const char module[]="OJPEGPostEncode"; - TIFFErrorExt(tif->tif_clientdata,module,"OJPEG encoding not supported; use new-style JPEG compression instead"); - return(0); -} - -static void -OJPEGCleanup(TIFF* tif) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - if (sp!=0) - { - tif->tif_tagmethods.vgetfield=sp->vgetparent; - tif->tif_tagmethods.vsetfield=sp->vsetparent; - tif->tif_tagmethods.printdir=sp->printdir; - if (sp->qtable[0]!=0) - _TIFFfree(sp->qtable[0]); - if (sp->qtable[1]!=0) - _TIFFfree(sp->qtable[1]); - if (sp->qtable[2]!=0) - _TIFFfree(sp->qtable[2]); - if (sp->qtable[3]!=0) - _TIFFfree(sp->qtable[3]); - if (sp->dctable[0]!=0) - _TIFFfree(sp->dctable[0]); - if (sp->dctable[1]!=0) - _TIFFfree(sp->dctable[1]); - if (sp->dctable[2]!=0) - _TIFFfree(sp->dctable[2]); - if (sp->dctable[3]!=0) - _TIFFfree(sp->dctable[3]); - if (sp->actable[0]!=0) - _TIFFfree(sp->actable[0]); - if (sp->actable[1]!=0) - _TIFFfree(sp->actable[1]); - if (sp->actable[2]!=0) - _TIFFfree(sp->actable[2]); - if (sp->actable[3]!=0) - _TIFFfree(sp->actable[3]); - if (sp->libjpeg_session_active!=0) - OJPEGLibjpegSessionAbort(tif); - if (sp->subsampling_convert_ycbcrbuf!=0) - _TIFFfree(sp->subsampling_convert_ycbcrbuf); - if (sp->subsampling_convert_ycbcrimage!=0) - _TIFFfree(sp->subsampling_convert_ycbcrimage); - if (sp->skip_buffer!=0) - _TIFFfree(sp->skip_buffer); - _TIFFfree(sp); - tif->tif_data=NULL; - _TIFFSetDefaultCompressionState(tif); - } -} - -static void -OJPEGSubsamplingCorrect(TIFF* tif) -{ - static const char module[]="OJPEGSubsamplingCorrect"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 mh; - uint8 mv; - _TIFFFillStriles( tif ); - - assert(sp->subsamplingcorrect_done==0); - if ((tif->tif_dir.td_samplesperpixel!=3) || ((tif->tif_dir.td_photometric!=PHOTOMETRIC_YCBCR) && - (tif->tif_dir.td_photometric!=PHOTOMETRIC_ITULAB))) - { - if (sp->subsampling_tag!=0) - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag not appropriate for this Photometric and/or SamplesPerPixel"); - sp->subsampling_hor=1; - sp->subsampling_ver=1; - sp->subsampling_force_desubsampling_inside_decompression=0; - } - else - { - sp->subsamplingcorrect_done=1; - mh=sp->subsampling_hor; - mv=sp->subsampling_ver; - sp->subsamplingcorrect=1; - OJPEGReadHeaderInfoSec(tif); - if (sp->subsampling_force_desubsampling_inside_decompression!=0) - { - sp->subsampling_hor=1; - sp->subsampling_ver=1; - } - sp->subsamplingcorrect=0; - if (((sp->subsampling_hor!=mh) || (sp->subsampling_ver!=mv)) && (sp->subsampling_force_desubsampling_inside_decompression==0)) - { - if (sp->subsampling_tag==0) - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data [%d,%d] does not match default values [2,2]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver); - else - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data [%d,%d] does not match subsampling tag values [%d,%d]; assuming subsampling inside JPEG data is correct",sp->subsampling_hor,sp->subsampling_ver,mh,mv); - } - if (sp->subsampling_force_desubsampling_inside_decompression!=0) - { - if (sp->subsampling_tag==0) - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling tag is not set, yet subsampling inside JPEG data does not match default values [2,2] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression"); - else - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling inside JPEG data does not match subsampling tag values [%d,%d] (nor any other values allowed in TIFF); assuming subsampling inside JPEG data is correct and desubsampling inside JPEG decompression",mh,mv); - } - if (sp->subsampling_force_desubsampling_inside_decompression==0) - { - if (sp->subsampling_horsubsampling_ver) - TIFFWarningExt(tif->tif_clientdata,module,"Subsampling values [%d,%d] are not allowed in TIFF",sp->subsampling_hor,sp->subsampling_ver); - } - } - sp->subsamplingcorrect_done=1; -} - -static int -OJPEGReadHeaderInfo(TIFF* tif) -{ - static const char module[]="OJPEGReadHeaderInfo"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(sp->readheader_done==0); - sp->image_width=tif->tif_dir.td_imagewidth; - sp->image_length=tif->tif_dir.td_imagelength; - if isTiled(tif) - { - sp->strile_width=tif->tif_dir.td_tilewidth; - sp->strile_length=tif->tif_dir.td_tilelength; - sp->strile_length_total=((sp->image_length+sp->strile_length-1)/sp->strile_length)*sp->strile_length; - } - else - { - sp->strile_width=sp->image_width; - sp->strile_length=tif->tif_dir.td_rowsperstrip; - sp->strile_length_total=sp->image_length; - } - if (tif->tif_dir.td_samplesperpixel==1) - { - sp->samples_per_pixel=1; - sp->plane_sample_offset=0; - sp->samples_per_pixel_per_plane=sp->samples_per_pixel; - sp->subsampling_hor=1; - sp->subsampling_ver=1; - } - else - { - if (tif->tif_dir.td_samplesperpixel!=3) - { - TIFFErrorExt(tif->tif_clientdata,module,"SamplesPerPixel %d not supported for this compression scheme",sp->samples_per_pixel); - return(0); - } - sp->samples_per_pixel=3; - sp->plane_sample_offset=0; - if (tif->tif_dir.td_planarconfig==PLANARCONFIG_CONTIG) - sp->samples_per_pixel_per_plane=3; - else - sp->samples_per_pixel_per_plane=1; - } - if (sp->strile_lengthimage_length) - { - if (sp->strile_length%(sp->subsampling_ver*8)!=0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Incompatible vertical subsampling and image strip/tile length"); - return(0); - } - sp->restart_interval=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8))*(sp->strile_length/(sp->subsampling_ver*8)); - } - if (OJPEGReadHeaderInfoSec(tif)==0) - return(0); - sp->sos_end[0].log=1; - sp->sos_end[0].in_buffer_source=sp->in_buffer_source; - sp->sos_end[0].in_buffer_next_strile=sp->in_buffer_next_strile; - sp->sos_end[0].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; - sp->sos_end[0].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; - sp->readheader_done=1; - return(1); -} - -static int -OJPEGReadSecondarySos(TIFF* tif, uint16 s) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - assert(s>0); - assert(s<3); - assert(sp->sos_end[0].log!=0); - assert(sp->sos_end[s].log==0); - sp->plane_sample_offset=s-1; - while(sp->sos_end[sp->plane_sample_offset].log==0) - sp->plane_sample_offset--; - sp->in_buffer_source=sp->sos_end[sp->plane_sample_offset].in_buffer_source; - sp->in_buffer_next_strile=sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile; - sp->in_buffer_file_pos=sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos; - sp->in_buffer_file_pos_log=0; - sp->in_buffer_file_togo=sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo; - sp->in_buffer_togo=0; - sp->in_buffer_cur=0; - while(sp->plane_sample_offsetplane_sample_offset++; - if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) - return(0); - sp->sos_end[sp->plane_sample_offset].log=1; - sp->sos_end[sp->plane_sample_offset].in_buffer_source=sp->in_buffer_source; - sp->sos_end[sp->plane_sample_offset].in_buffer_next_strile=sp->in_buffer_next_strile; - sp->sos_end[sp->plane_sample_offset].in_buffer_file_pos=sp->in_buffer_file_pos-sp->in_buffer_togo; - sp->sos_end[sp->plane_sample_offset].in_buffer_file_togo=sp->in_buffer_file_togo+sp->in_buffer_togo; - } - return(1); -} - -static int -OJPEGWriteHeaderInfo(TIFF* tif) -{ - static const char module[]="OJPEGWriteHeaderInfo"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8** m; - uint32 n; - /* if a previous attempt failed, don't try again */ - if (sp->libjpeg_session_active != 0) - return 0; - sp->out_state=ososSoi; - sp->restart_index=0; - jpeg_std_error(&(sp->libjpeg_jpeg_error_mgr)); - sp->libjpeg_jpeg_error_mgr.output_message=OJPEGLibjpegJpegErrorMgrOutputMessage; - sp->libjpeg_jpeg_error_mgr.error_exit=OJPEGLibjpegJpegErrorMgrErrorExit; - sp->libjpeg_jpeg_decompress_struct.err=&(sp->libjpeg_jpeg_error_mgr); - sp->libjpeg_jpeg_decompress_struct.client_data=(void*)tif; - if (jpeg_create_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) - return(0); - sp->libjpeg_session_active=1; - sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=0; - sp->libjpeg_jpeg_source_mgr.init_source=OJPEGLibjpegJpegSourceMgrInitSource; - sp->libjpeg_jpeg_source_mgr.fill_input_buffer=OJPEGLibjpegJpegSourceMgrFillInputBuffer; - sp->libjpeg_jpeg_source_mgr.skip_input_data=OJPEGLibjpegJpegSourceMgrSkipInputData; - sp->libjpeg_jpeg_source_mgr.resync_to_restart=OJPEGLibjpegJpegSourceMgrResyncToRestart; - sp->libjpeg_jpeg_source_mgr.term_source=OJPEGLibjpegJpegSourceMgrTermSource; - sp->libjpeg_jpeg_decompress_struct.src=&(sp->libjpeg_jpeg_source_mgr); - if (jpeg_read_header_encap(sp,&(sp->libjpeg_jpeg_decompress_struct),1)==0) - return(0); - if ((sp->subsampling_force_desubsampling_inside_decompression==0) && (sp->samples_per_pixel_per_plane>1)) - { - sp->libjpeg_jpeg_decompress_struct.raw_data_out=1; -#if JPEG_LIB_VERSION >= 70 - sp->libjpeg_jpeg_decompress_struct.do_fancy_upsampling=FALSE; -#endif - sp->libjpeg_jpeg_query_style=0; - if (sp->subsampling_convert_log==0) - { - assert(sp->subsampling_convert_ycbcrbuf==0); - assert(sp->subsampling_convert_ycbcrimage==0); - sp->subsampling_convert_ylinelen=((sp->strile_width+sp->subsampling_hor*8-1)/(sp->subsampling_hor*8)*sp->subsampling_hor*8); - sp->subsampling_convert_ylines=sp->subsampling_ver*8; - sp->subsampling_convert_clinelen=sp->subsampling_convert_ylinelen/sp->subsampling_hor; - sp->subsampling_convert_clines=8; - sp->subsampling_convert_ybuflen=sp->subsampling_convert_ylinelen*sp->subsampling_convert_ylines; - sp->subsampling_convert_cbuflen=sp->subsampling_convert_clinelen*sp->subsampling_convert_clines; - sp->subsampling_convert_ycbcrbuflen=sp->subsampling_convert_ybuflen+2*sp->subsampling_convert_cbuflen; - sp->subsampling_convert_ycbcrbuf=_TIFFmalloc(sp->subsampling_convert_ycbcrbuflen); - if (sp->subsampling_convert_ycbcrbuf==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - sp->subsampling_convert_ybuf=sp->subsampling_convert_ycbcrbuf; - sp->subsampling_convert_cbbuf=sp->subsampling_convert_ybuf+sp->subsampling_convert_ybuflen; - sp->subsampling_convert_crbuf=sp->subsampling_convert_cbbuf+sp->subsampling_convert_cbuflen; - sp->subsampling_convert_ycbcrimagelen=3+sp->subsampling_convert_ylines+2*sp->subsampling_convert_clines; - sp->subsampling_convert_ycbcrimage=_TIFFmalloc(sp->subsampling_convert_ycbcrimagelen*sizeof(uint8*)); - if (sp->subsampling_convert_ycbcrimage==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - m=sp->subsampling_convert_ycbcrimage; - *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3); - *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines); - *m++=(uint8*)(sp->subsampling_convert_ycbcrimage+3+sp->subsampling_convert_ylines+sp->subsampling_convert_clines); - for (n=0; nsubsampling_convert_ylines; n++) - *m++=sp->subsampling_convert_ybuf+n*sp->subsampling_convert_ylinelen; - for (n=0; nsubsampling_convert_clines; n++) - *m++=sp->subsampling_convert_cbbuf+n*sp->subsampling_convert_clinelen; - for (n=0; nsubsampling_convert_clines; n++) - *m++=sp->subsampling_convert_crbuf+n*sp->subsampling_convert_clinelen; - sp->subsampling_convert_clinelenout=((sp->strile_width+sp->subsampling_hor-1)/sp->subsampling_hor); - sp->subsampling_convert_state=0; - sp->bytes_per_line=sp->subsampling_convert_clinelenout*(sp->subsampling_ver*sp->subsampling_hor+2); - sp->lines_per_strile=((sp->strile_length+sp->subsampling_ver-1)/sp->subsampling_ver); - sp->subsampling_convert_log=1; - } - } - else - { - sp->libjpeg_jpeg_decompress_struct.jpeg_color_space=JCS_UNKNOWN; - sp->libjpeg_jpeg_decompress_struct.out_color_space=JCS_UNKNOWN; - sp->libjpeg_jpeg_query_style=1; - sp->bytes_per_line=sp->samples_per_pixel_per_plane*sp->strile_width; - sp->lines_per_strile=sp->strile_length; - } - if (jpeg_start_decompress_encap(sp,&(sp->libjpeg_jpeg_decompress_struct))==0) - return(0); - sp->writeheader_done=1; - return(1); -} - -static void -OJPEGLibjpegSessionAbort(TIFF* tif) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(sp->libjpeg_session_active!=0); - jpeg_destroy((jpeg_common_struct*)(&(sp->libjpeg_jpeg_decompress_struct))); - sp->libjpeg_session_active=0; -} - -static int -OJPEGReadHeaderInfoSec(TIFF* tif) -{ - static const char module[]="OJPEGReadHeaderInfoSec"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - uint16 n; - uint8 o; - if (sp->file_size==0) - sp->file_size=TIFFGetFileSize(tif); - if (sp->jpeg_interchange_format!=0) - { - if (sp->jpeg_interchange_format>=sp->file_size) - { - sp->jpeg_interchange_format=0; - sp->jpeg_interchange_format_length=0; - } - else - { - if ((sp->jpeg_interchange_format_length==0) || (sp->jpeg_interchange_format+sp->jpeg_interchange_format_length>sp->file_size)) - sp->jpeg_interchange_format_length=sp->file_size-sp->jpeg_interchange_format; - } - } - sp->in_buffer_source=osibsNotSetYet; - sp->in_buffer_next_strile=0; - sp->in_buffer_strile_count=tif->tif_dir.td_nstrips; - sp->in_buffer_file_togo=0; - sp->in_buffer_togo=0; - do - { - if (OJPEGReadBytePeek(sp,&m)==0) - return(0); - if (m!=255) - break; - OJPEGReadByteAdvance(sp); - do - { - if (OJPEGReadByte(sp,&m)==0) - return(0); - } while(m==255); - switch(m) - { - case JPEG_MARKER_SOI: - /* this type of marker has no data, and should be skipped */ - break; - case JPEG_MARKER_COM: - case JPEG_MARKER_APP0: - case JPEG_MARKER_APP0+1: - case JPEG_MARKER_APP0+2: - case JPEG_MARKER_APP0+3: - case JPEG_MARKER_APP0+4: - case JPEG_MARKER_APP0+5: - case JPEG_MARKER_APP0+6: - case JPEG_MARKER_APP0+7: - case JPEG_MARKER_APP0+8: - case JPEG_MARKER_APP0+9: - case JPEG_MARKER_APP0+10: - case JPEG_MARKER_APP0+11: - case JPEG_MARKER_APP0+12: - case JPEG_MARKER_APP0+13: - case JPEG_MARKER_APP0+14: - case JPEG_MARKER_APP0+15: - /* this type of marker has data, but it has no use to us (and no place here) and should be skipped */ - if (OJPEGReadWord(sp,&n)==0) - return(0); - if (n<2) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); - return(0); - } - if (n>2) - OJPEGReadSkip(sp,n-2); - break; - case JPEG_MARKER_DRI: - if (OJPEGReadHeaderInfoSecStreamDri(tif)==0) - return(0); - break; - case JPEG_MARKER_DQT: - if (OJPEGReadHeaderInfoSecStreamDqt(tif)==0) - return(0); - break; - case JPEG_MARKER_DHT: - if (OJPEGReadHeaderInfoSecStreamDht(tif)==0) - return(0); - break; - case JPEG_MARKER_SOF0: - case JPEG_MARKER_SOF1: - case JPEG_MARKER_SOF3: - if (OJPEGReadHeaderInfoSecStreamSof(tif,m)==0) - return(0); - if (sp->subsamplingcorrect!=0) - return(1); - break; - case JPEG_MARKER_SOS: - if (sp->subsamplingcorrect!=0) - return(1); - assert(sp->plane_sample_offset==0); - if (OJPEGReadHeaderInfoSecStreamSos(tif)==0) - return(0); - break; - default: - TIFFErrorExt(tif->tif_clientdata,module,"Unknown marker type %d in JPEG data",m); - return(0); - } - } while(m!=JPEG_MARKER_SOS); - if (sp->subsamplingcorrect) - return(1); - if (sp->sof_log==0) - { - if (OJPEGReadHeaderInfoSecTablesQTable(tif)==0) - return(0); - sp->sof_marker_id=JPEG_MARKER_SOF0; - for (o=0; osamples_per_pixel; o++) - sp->sof_c[o]=o; - sp->sof_hv[0]=((sp->subsampling_hor<<4)|sp->subsampling_ver); - for (o=1; osamples_per_pixel; o++) - sp->sof_hv[o]=17; - sp->sof_x=sp->strile_width; - sp->sof_y=sp->strile_length_total; - sp->sof_log=1; - if (OJPEGReadHeaderInfoSecTablesDcTable(tif)==0) - return(0); - if (OJPEGReadHeaderInfoSecTablesAcTable(tif)==0) - return(0); - for (o=1; osamples_per_pixel; o++) - sp->sos_cs[o]=o; - } - return(1); -} - -static int -OJPEGReadHeaderInfoSecStreamDri(TIFF* tif) -{ - /* this could easilly cause trouble in some cases... but no such cases have occured sofar */ - static const char module[]="OJPEGReadHeaderInfoSecStreamDri"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint16 m; - if (OJPEGReadWord(sp,&m)==0) - return(0); - if (m!=4) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DRI marker in JPEG data"); - return(0); - } - if (OJPEGReadWord(sp,&m)==0) - return(0); - sp->restart_interval=m; - return(1); -} - -static int -OJPEGReadHeaderInfoSecStreamDqt(TIFF* tif) -{ - /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ - static const char module[]="OJPEGReadHeaderInfoSecStreamDqt"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint16 m; - uint32 na; - uint8* nb; - uint8 o; - if (OJPEGReadWord(sp,&m)==0) - return(0); - if (m<=2) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); - return(0); - } - if (sp->subsamplingcorrect!=0) - OJPEGReadSkip(sp,m-2); - else - { - m-=2; - do - { - if (m<65) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DQT marker in JPEG data"); - return(0); - } - na=sizeof(uint32)+69; - nb=_TIFFmalloc(na); - if (nb==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - *(uint32*)nb=na; - nb[sizeof(uint32)]=255; - nb[sizeof(uint32)+1]=JPEG_MARKER_DQT; - nb[sizeof(uint32)+2]=0; - nb[sizeof(uint32)+3]=67; - if (OJPEGReadBlock(sp,65,&nb[sizeof(uint32)+4])==0) { - _TIFFfree(nb); - return(0); - } - o=nb[sizeof(uint32)+4]&15; - if (3tif_clientdata,module,"Corrupt DQT marker in JPEG data"); - _TIFFfree(nb); - return(0); - } - if (sp->qtable[o]!=0) - _TIFFfree(sp->qtable[o]); - sp->qtable[o]=nb; - m-=65; - } while(m>0); - } - return(1); -} - -static int -OJPEGReadHeaderInfoSecStreamDht(TIFF* tif) -{ - /* this is a table marker, and it is to be saved as a whole for exact pushing on the jpeg stream later on */ - /* TODO: the following assumes there is only one table in this marker... but i'm not quite sure that assumption is guaranteed correct */ - static const char module[]="OJPEGReadHeaderInfoSecStreamDht"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint16 m; - uint32 na; - uint8* nb; - uint8 o; - if (OJPEGReadWord(sp,&m)==0) - return(0); - if (m<=2) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); - return(0); - } - if (sp->subsamplingcorrect!=0) - { - OJPEGReadSkip(sp,m-2); - } - else - { - na=sizeof(uint32)+2+m; - nb=_TIFFmalloc(na); - if (nb==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - *(uint32*)nb=na; - nb[sizeof(uint32)]=255; - nb[sizeof(uint32)+1]=JPEG_MARKER_DHT; - nb[sizeof(uint32)+2]=(m>>8); - nb[sizeof(uint32)+3]=(m&255); - if (OJPEGReadBlock(sp,m-2,&nb[sizeof(uint32)+4])==0) - return(0); - o=nb[sizeof(uint32)+4]; - if ((o&240)==0) - { - if (3tif_clientdata,module,"Corrupt DHT marker in JPEG data"); - return(0); - } - if (sp->dctable[o]!=0) - _TIFFfree(sp->dctable[o]); - sp->dctable[o]=nb; - } - else - { - if ((o&240)!=16) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt DHT marker in JPEG data"); - return(0); - } - o&=15; - if (3tif_clientdata,module,"Corrupt DHT marker in JPEG data"); - return(0); - } - if (sp->actable[o]!=0) - _TIFFfree(sp->actable[o]); - sp->actable[o]=nb; - } - } - return(1); -} - -static int -OJPEGReadHeaderInfoSecStreamSof(TIFF* tif, uint8 marker_id) -{ - /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ - static const char module[]="OJPEGReadHeaderInfoSecStreamSof"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint16 m; - uint16 n; - uint8 o; - uint16 p; - uint16 q; - if (sp->sof_log!=0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JPEG data"); - return(0); - } - if (sp->subsamplingcorrect==0) - sp->sof_marker_id=marker_id; - /* Lf: data length */ - if (OJPEGReadWord(sp,&m)==0) - return(0); - if (m<11) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); - return(0); - } - m-=8; - if (m%3!=0) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); - return(0); - } - n=m/3; - if (sp->subsamplingcorrect==0) - { - if (n!=sp->samples_per_pixel) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of samples"); - return(0); - } - } - /* P: Sample precision */ - if (OJPEGReadByte(sp,&o)==0) - return(0); - if (o!=8) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected number of bits per sample"); - return(0); - } - /* Y: Number of lines, X: Number of samples per line */ - if (sp->subsamplingcorrect) - OJPEGReadSkip(sp,4); - else - { - /* Y: Number of lines */ - if (OJPEGReadWord(sp,&p)==0) - return(0); - if (((uint32)pimage_length) && ((uint32)pstrile_length_total)) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected height"); - return(0); - } - sp->sof_y=p; - /* X: Number of samples per line */ - if (OJPEGReadWord(sp,&p)==0) - return(0); - if (((uint32)pimage_width) && ((uint32)pstrile_width)) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected width"); - return(0); - } - if ((uint32)p>sp->strile_width) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data image width exceeds expected image width"); - return(0); - } - sp->sof_x=p; - } - /* Nf: Number of image components in frame */ - if (OJPEGReadByte(sp,&o)==0) - return(0); - if (o!=n) - { - if (sp->subsamplingcorrect==0) - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOF marker in JPEG data"); - return(0); - } - /* per component stuff */ - /* TODO: double-check that flow implies that n cannot be as big as to make us overflow sof_c, sof_hv and sof_tq arrays */ - for (q=0; qsubsamplingcorrect==0) - sp->sof_c[q]=o; - /* H: Horizontal sampling factor, and V: Vertical sampling factor */ - if (OJPEGReadByte(sp,&o)==0) - return(0); - if (sp->subsamplingcorrect!=0) - { - if (q==0) - { - sp->subsampling_hor=(o>>4); - sp->subsampling_ver=(o&15); - if (((sp->subsampling_hor!=1) && (sp->subsampling_hor!=2) && (sp->subsampling_hor!=4)) || - ((sp->subsampling_ver!=1) && (sp->subsampling_ver!=2) && (sp->subsampling_ver!=4))) - sp->subsampling_force_desubsampling_inside_decompression=1; - } - else - { - if (o!=17) - sp->subsampling_force_desubsampling_inside_decompression=1; - } - } - else - { - sp->sof_hv[q]=o; - if (sp->subsampling_force_desubsampling_inside_decompression==0) - { - if (q==0) - { - if (o!=((sp->subsampling_hor<<4)|sp->subsampling_ver)) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); - return(0); - } - } - else - { - if (o!=17) - { - TIFFErrorExt(tif->tif_clientdata,module,"JPEG compressed data indicates unexpected subsampling values"); - return(0); - } - } - } - } - /* Tq: Quantization table destination selector */ - if (OJPEGReadByte(sp,&o)==0) - return(0); - if (sp->subsamplingcorrect==0) - sp->sof_tq[q]=o; - } - if (sp->subsamplingcorrect==0) - sp->sof_log=1; - return(1); -} - -static int -OJPEGReadHeaderInfoSecStreamSos(TIFF* tif) -{ - /* this marker needs to be checked, and part of its data needs to be saved for regeneration later on */ - static const char module[]="OJPEGReadHeaderInfoSecStreamSos"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint16 m; - uint8 n; - uint8 o; - assert(sp->subsamplingcorrect==0); - if (sp->sof_log==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); - return(0); - } - /* Ls */ - if (OJPEGReadWord(sp,&m)==0) - return(0); - if (m!=6+sp->samples_per_pixel_per_plane*2) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); - return(0); - } - /* Ns */ - if (OJPEGReadByte(sp,&n)==0) - return(0); - if (n!=sp->samples_per_pixel_per_plane) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt SOS marker in JPEG data"); - return(0); - } - /* Cs, Td, and Ta */ - for (o=0; osamples_per_pixel_per_plane; o++) - { - /* Cs */ - if (OJPEGReadByte(sp,&n)==0) - return(0); - sp->sos_cs[sp->plane_sample_offset+o]=n; - /* Td and Ta */ - if (OJPEGReadByte(sp,&n)==0) - return(0); - sp->sos_tda[sp->plane_sample_offset+o]=n; - } - /* skip Ss, Se, Ah, en Al -> no check, as per Tom Lane recommendation, as per LibJpeg source */ - OJPEGReadSkip(sp,3); - return(1); -} - -static int -OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif) -{ - static const char module[]="OJPEGReadHeaderInfoSecTablesQTable"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - uint8 n; - uint32 oa; - uint8* ob; - uint32 p; - if (sp->qtable_offset[0]==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); - return(0); - } - sp->in_buffer_file_pos_log=0; - for (m=0; msamples_per_pixel; m++) - { - if ((sp->qtable_offset[m]!=0) && ((m==0) || (sp->qtable_offset[m]!=sp->qtable_offset[m-1]))) - { - for (n=0; nqtable_offset[m]==sp->qtable_offset[n]) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegQTables tag value"); - return(0); - } - } - oa=sizeof(uint32)+69; - ob=_TIFFmalloc(oa); - if (ob==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - *(uint32*)ob=oa; - ob[sizeof(uint32)]=255; - ob[sizeof(uint32)+1]=JPEG_MARKER_DQT; - ob[sizeof(uint32)+2]=0; - ob[sizeof(uint32)+3]=67; - ob[sizeof(uint32)+4]=m; - TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); - p=TIFFReadFile(tif,&ob[sizeof(uint32)+5],64); - if (p!=64) - return(0); - sp->qtable[m]=ob; - sp->sof_tq[m]=m; - } - else - sp->sof_tq[m]=sp->sof_tq[m-1]; - } - return(1); -} - -static int -OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif) -{ - static const char module[]="OJPEGReadHeaderInfoSecTablesDcTable"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - uint8 n; - uint8 o[16]; - uint32 p; - uint32 q; - uint32 ra; - uint8* rb; - if (sp->dctable_offset[0]==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); - return(0); - } - sp->in_buffer_file_pos_log=0; - for (m=0; msamples_per_pixel; m++) - { - if ((sp->dctable_offset[m]!=0) && ((m==0) || (sp->dctable_offset[m]!=sp->dctable_offset[m-1]))) - { - for (n=0; ndctable_offset[m]==sp->dctable_offset[n]) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegDcTables tag value"); - return(0); - } - } - TIFFSeekFile(tif,sp->dctable_offset[m],SEEK_SET); - p=TIFFReadFile(tif,o,16); - if (p!=16) - return(0); - q=0; - for (n=0; n<16; n++) - q+=o[n]; - ra=sizeof(uint32)+21+q; - rb=_TIFFmalloc(ra); - if (rb==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - *(uint32*)rb=ra; - rb[sizeof(uint32)]=255; - rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; - rb[sizeof(uint32)+2]=((19+q)>>8); - rb[sizeof(uint32)+3]=((19+q)&255); - rb[sizeof(uint32)+4]=m; - for (n=0; n<16; n++) - rb[sizeof(uint32)+5+n]=o[n]; - p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); - if (p!=q) - return(0); - sp->dctable[m]=rb; - sp->sos_tda[m]=(m<<4); - } - else - sp->sos_tda[m]=sp->sos_tda[m-1]; - } - return(1); -} - -static int -OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif) -{ - static const char module[]="OJPEGReadHeaderInfoSecTablesAcTable"; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - uint8 n; - uint8 o[16]; - uint32 p; - uint32 q; - uint32 ra; - uint8* rb; - if (sp->actable_offset[0]==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Missing JPEG tables"); - return(0); - } - sp->in_buffer_file_pos_log=0; - for (m=0; msamples_per_pixel; m++) - { - if ((sp->actable_offset[m]!=0) && ((m==0) || (sp->actable_offset[m]!=sp->actable_offset[m-1]))) - { - for (n=0; nactable_offset[m]==sp->actable_offset[n]) - { - TIFFErrorExt(tif->tif_clientdata,module,"Corrupt JpegAcTables tag value"); - return(0); - } - } - TIFFSeekFile(tif,sp->actable_offset[m],SEEK_SET); - p=TIFFReadFile(tif,o,16); - if (p!=16) - return(0); - q=0; - for (n=0; n<16; n++) - q+=o[n]; - ra=sizeof(uint32)+21+q; - rb=_TIFFmalloc(ra); - if (rb==0) - { - TIFFErrorExt(tif->tif_clientdata,module,"Out of memory"); - return(0); - } - *(uint32*)rb=ra; - rb[sizeof(uint32)]=255; - rb[sizeof(uint32)+1]=JPEG_MARKER_DHT; - rb[sizeof(uint32)+2]=((19+q)>>8); - rb[sizeof(uint32)+3]=((19+q)&255); - rb[sizeof(uint32)+4]=(16|m); - for (n=0; n<16; n++) - rb[sizeof(uint32)+5+n]=o[n]; - p=TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q); - if (p!=q) - return(0); - sp->actable[m]=rb; - sp->sos_tda[m]=(sp->sos_tda[m]|m); - } - else - sp->sos_tda[m]=(sp->sos_tda[m]|(sp->sos_tda[m-1]&15)); - } - return(1); -} - -static int -OJPEGReadBufferFill(OJPEGState* sp) -{ - uint16 m; - tmsize_t n; - /* TODO: double-check: when subsamplingcorrect is set, no call to TIFFErrorExt or TIFFWarningExt should be made - * in any other case, seek or read errors should be passed through */ - do - { - if (sp->in_buffer_file_togo!=0) - { - if (sp->in_buffer_file_pos_log==0) - { - TIFFSeekFile(sp->tif,sp->in_buffer_file_pos,SEEK_SET); - sp->in_buffer_file_pos_log=1; - } - m=OJPEG_BUFFER; - if ((uint64)m>sp->in_buffer_file_togo) - m=(uint16)sp->in_buffer_file_togo; - n=TIFFReadFile(sp->tif,sp->in_buffer,(tmsize_t)m); - if (n==0) - return(0); - assert(n>0); - assert(n<=OJPEG_BUFFER); - assert(n<65536); - assert((uint64)n<=sp->in_buffer_file_togo); - m=(uint16)n; - sp->in_buffer_togo=m; - sp->in_buffer_cur=sp->in_buffer; - sp->in_buffer_file_togo-=m; - sp->in_buffer_file_pos+=m; - break; - } - sp->in_buffer_file_pos_log=0; - switch(sp->in_buffer_source) - { - case osibsNotSetYet: - if (sp->jpeg_interchange_format!=0) - { - sp->in_buffer_file_pos=sp->jpeg_interchange_format; - sp->in_buffer_file_togo=sp->jpeg_interchange_format_length; - } - sp->in_buffer_source=osibsJpegInterchangeFormat; - break; - case osibsJpegInterchangeFormat: - sp->in_buffer_source=osibsStrile; - case osibsStrile: - if (!_TIFFFillStriles( sp->tif ) - || sp->tif->tif_dir.td_stripoffset == NULL - || sp->tif->tif_dir.td_stripbytecount == NULL) - return 0; - - if (sp->in_buffer_next_strile==sp->in_buffer_strile_count) - sp->in_buffer_source=osibsEof; - else - { - sp->in_buffer_file_pos=sp->tif->tif_dir.td_stripoffset[sp->in_buffer_next_strile]; - if (sp->in_buffer_file_pos!=0) - { - if (sp->in_buffer_file_pos>=sp->file_size) - sp->in_buffer_file_pos=0; - else if (sp->tif->tif_dir.td_stripbytecount==NULL) - sp->in_buffer_file_togo=sp->file_size-sp->in_buffer_file_pos; - else - { - if (sp->tif->tif_dir.td_stripbytecount == 0) { - TIFFErrorExt(sp->tif->tif_clientdata,sp->tif->tif_name,"Strip byte counts are missing"); - return(0); - } - sp->in_buffer_file_togo=sp->tif->tif_dir.td_stripbytecount[sp->in_buffer_next_strile]; - if (sp->in_buffer_file_togo==0) - sp->in_buffer_file_pos=0; - else if (sp->in_buffer_file_pos+sp->in_buffer_file_togo>sp->file_size) - sp->in_buffer_file_togo=sp->file_size-sp->in_buffer_file_pos; - } - } - sp->in_buffer_next_strile++; - } - break; - default: - return(0); - } - } while (1); - return(1); -} - -static int -OJPEGReadByte(OJPEGState* sp, uint8* byte) -{ - if (sp->in_buffer_togo==0) - { - if (OJPEGReadBufferFill(sp)==0) - return(0); - assert(sp->in_buffer_togo>0); - } - *byte=*(sp->in_buffer_cur); - sp->in_buffer_cur++; - sp->in_buffer_togo--; - return(1); -} - -static int -OJPEGReadBytePeek(OJPEGState* sp, uint8* byte) -{ - if (sp->in_buffer_togo==0) - { - if (OJPEGReadBufferFill(sp)==0) - return(0); - assert(sp->in_buffer_togo>0); - } - *byte=*(sp->in_buffer_cur); - return(1); -} - -static void -OJPEGReadByteAdvance(OJPEGState* sp) -{ - assert(sp->in_buffer_togo>0); - sp->in_buffer_cur++; - sp->in_buffer_togo--; -} - -static int -OJPEGReadWord(OJPEGState* sp, uint16* word) -{ - uint8 m; - if (OJPEGReadByte(sp,&m)==0) - return(0); - *word=(m<<8); - if (OJPEGReadByte(sp,&m)==0) - return(0); - *word|=m; - return(1); -} - -static int -OJPEGReadBlock(OJPEGState* sp, uint16 len, void* mem) -{ - uint16 mlen; - uint8* mmem; - uint16 n; - assert(len>0); - mlen=len; - mmem=mem; - do - { - if (sp->in_buffer_togo==0) - { - if (OJPEGReadBufferFill(sp)==0) - return(0); - assert(sp->in_buffer_togo>0); - } - n=mlen; - if (n>sp->in_buffer_togo) - n=sp->in_buffer_togo; - _TIFFmemcpy(mmem,sp->in_buffer_cur,n); - sp->in_buffer_cur+=n; - sp->in_buffer_togo-=n; - mlen-=n; - mmem+=n; - } while(mlen>0); - return(1); -} - -static void -OJPEGReadSkip(OJPEGState* sp, uint16 len) -{ - uint16 m; - uint16 n; - m=len; - n=m; - if (n>sp->in_buffer_togo) - n=sp->in_buffer_togo; - sp->in_buffer_cur+=n; - sp->in_buffer_togo-=n; - m-=n; - if (m>0) - { - assert(sp->in_buffer_togo==0); - n=m; - if ((uint64)n>sp->in_buffer_file_togo) - n=(uint16)sp->in_buffer_file_togo; - sp->in_buffer_file_pos+=n; - sp->in_buffer_file_togo-=n; - sp->in_buffer_file_pos_log=0; - /* we don't skip past jpeginterchangeformat/strile block... - * if that is asked from us, we're dealing with totally bazurk - * data anyway, and we've not seen this happening on any - * testfile, so we might as well likely cause some other - * meaningless error to be passed at some later time - */ - } -} - -static int -OJPEGWriteStream(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - *len=0; - do - { - assert(sp->out_state<=ososEoi); - switch(sp->out_state) - { - case ososSoi: - OJPEGWriteStreamSoi(tif,mem,len); - break; - case ososQTable0: - OJPEGWriteStreamQTable(tif,0,mem,len); - break; - case ososQTable1: - OJPEGWriteStreamQTable(tif,1,mem,len); - break; - case ososQTable2: - OJPEGWriteStreamQTable(tif,2,mem,len); - break; - case ososQTable3: - OJPEGWriteStreamQTable(tif,3,mem,len); - break; - case ososDcTable0: - OJPEGWriteStreamDcTable(tif,0,mem,len); - break; - case ososDcTable1: - OJPEGWriteStreamDcTable(tif,1,mem,len); - break; - case ososDcTable2: - OJPEGWriteStreamDcTable(tif,2,mem,len); - break; - case ososDcTable3: - OJPEGWriteStreamDcTable(tif,3,mem,len); - break; - case ososAcTable0: - OJPEGWriteStreamAcTable(tif,0,mem,len); - break; - case ososAcTable1: - OJPEGWriteStreamAcTable(tif,1,mem,len); - break; - case ososAcTable2: - OJPEGWriteStreamAcTable(tif,2,mem,len); - break; - case ososAcTable3: - OJPEGWriteStreamAcTable(tif,3,mem,len); - break; - case ososDri: - OJPEGWriteStreamDri(tif,mem,len); - break; - case ososSof: - OJPEGWriteStreamSof(tif,mem,len); - break; - case ososSos: - OJPEGWriteStreamSos(tif,mem,len); - break; - case ososCompressed: - if (OJPEGWriteStreamCompressed(tif,mem,len)==0) - return(0); - break; - case ososRst: - OJPEGWriteStreamRst(tif,mem,len); - break; - case ososEoi: - OJPEGWriteStreamEoi(tif,mem,len); - break; - } - } while (*len==0); - return(1); -} - -static void -OJPEGWriteStreamSoi(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(OJPEG_BUFFER>=2); - sp->out_buffer[0]=255; - sp->out_buffer[1]=JPEG_MARKER_SOI; - *len=2; - *mem=(void*)sp->out_buffer; - sp->out_state++; -} - -static void -OJPEGWriteStreamQTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - if (sp->qtable[table_index]!=0) - { - *mem=(void*)(sp->qtable[table_index]+sizeof(uint32)); - *len=*((uint32*)sp->qtable[table_index])-sizeof(uint32); - } - sp->out_state++; -} - -static void -OJPEGWriteStreamDcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - if (sp->dctable[table_index]!=0) - { - *mem=(void*)(sp->dctable[table_index]+sizeof(uint32)); - *len=*((uint32*)sp->dctable[table_index])-sizeof(uint32); - } - sp->out_state++; -} - -static void -OJPEGWriteStreamAcTable(TIFF* tif, uint8 table_index, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - if (sp->actable[table_index]!=0) - { - *mem=(void*)(sp->actable[table_index]+sizeof(uint32)); - *len=*((uint32*)sp->actable[table_index])-sizeof(uint32); - } - sp->out_state++; -} - -static void -OJPEGWriteStreamDri(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(OJPEG_BUFFER>=6); - if (sp->restart_interval!=0) - { - sp->out_buffer[0]=255; - sp->out_buffer[1]=JPEG_MARKER_DRI; - sp->out_buffer[2]=0; - sp->out_buffer[3]=4; - sp->out_buffer[4]=(sp->restart_interval>>8); - sp->out_buffer[5]=(sp->restart_interval&255); - *len=6; - *mem=(void*)sp->out_buffer; - } - sp->out_state++; -} - -static void -OJPEGWriteStreamSof(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - assert(OJPEG_BUFFER>=2+8+sp->samples_per_pixel_per_plane*3); - assert(255>=8+sp->samples_per_pixel_per_plane*3); - sp->out_buffer[0]=255; - sp->out_buffer[1]=sp->sof_marker_id; - /* Lf */ - sp->out_buffer[2]=0; - sp->out_buffer[3]=8+sp->samples_per_pixel_per_plane*3; - /* P */ - sp->out_buffer[4]=8; - /* Y */ - sp->out_buffer[5]=(sp->sof_y>>8); - sp->out_buffer[6]=(sp->sof_y&255); - /* X */ - sp->out_buffer[7]=(sp->sof_x>>8); - sp->out_buffer[8]=(sp->sof_x&255); - /* Nf */ - sp->out_buffer[9]=sp->samples_per_pixel_per_plane; - for (m=0; msamples_per_pixel_per_plane; m++) - { - /* C */ - sp->out_buffer[10+m*3]=sp->sof_c[sp->plane_sample_offset+m]; - /* H and V */ - sp->out_buffer[10+m*3+1]=sp->sof_hv[sp->plane_sample_offset+m]; - /* Tq */ - sp->out_buffer[10+m*3+2]=sp->sof_tq[sp->plane_sample_offset+m]; - } - *len=10+sp->samples_per_pixel_per_plane*3; - *mem=(void*)sp->out_buffer; - sp->out_state++; -} - -static void -OJPEGWriteStreamSos(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - uint8 m; - assert(OJPEG_BUFFER>=2+6+sp->samples_per_pixel_per_plane*2); - assert(255>=6+sp->samples_per_pixel_per_plane*2); - sp->out_buffer[0]=255; - sp->out_buffer[1]=JPEG_MARKER_SOS; - /* Ls */ - sp->out_buffer[2]=0; - sp->out_buffer[3]=6+sp->samples_per_pixel_per_plane*2; - /* Ns */ - sp->out_buffer[4]=sp->samples_per_pixel_per_plane; - for (m=0; msamples_per_pixel_per_plane; m++) - { - /* Cs */ - sp->out_buffer[5+m*2]=sp->sos_cs[sp->plane_sample_offset+m]; - /* Td and Ta */ - sp->out_buffer[5+m*2+1]=sp->sos_tda[sp->plane_sample_offset+m]; - } - /* Ss */ - sp->out_buffer[5+sp->samples_per_pixel_per_plane*2]=0; - /* Se */ - sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+1]=63; - /* Ah and Al */ - sp->out_buffer[5+sp->samples_per_pixel_per_plane*2+2]=0; - *len=8+sp->samples_per_pixel_per_plane*2; - *mem=(void*)sp->out_buffer; - sp->out_state++; -} - -static int -OJPEGWriteStreamCompressed(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - if (sp->in_buffer_togo==0) - { - if (OJPEGReadBufferFill(sp)==0) - return(0); - assert(sp->in_buffer_togo>0); - } - *len=sp->in_buffer_togo; - *mem=(void*)sp->in_buffer_cur; - sp->in_buffer_togo=0; - if (sp->in_buffer_file_togo==0) - { - switch(sp->in_buffer_source) - { - case osibsStrile: - if (sp->in_buffer_next_strilein_buffer_strile_count) - sp->out_state=ososRst; - else - sp->out_state=ososEoi; - break; - case osibsEof: - sp->out_state=ososEoi; - break; - default: - break; - } - } - return(1); -} - -static void -OJPEGWriteStreamRst(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(OJPEG_BUFFER>=2); - sp->out_buffer[0]=255; - sp->out_buffer[1]=JPEG_MARKER_RST0+sp->restart_index; - sp->restart_index++; - if (sp->restart_index==8) - sp->restart_index=0; - *len=2; - *mem=(void*)sp->out_buffer; - sp->out_state=ososCompressed; -} - -static void -OJPEGWriteStreamEoi(TIFF* tif, void** mem, uint32* len) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - assert(OJPEG_BUFFER>=2); - sp->out_buffer[0]=255; - sp->out_buffer[1]=JPEG_MARKER_EOI; - *len=2; - *mem=(void*)sp->out_buffer; -} - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static int -jpeg_create_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) -{ - return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_create_decompress(cinfo),1)); -} -#endif - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static int -jpeg_read_header_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, uint8 require_image) -{ - return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_header(cinfo,require_image),1)); -} -#endif - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static int -jpeg_start_decompress_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo) -{ - return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_start_decompress(cinfo),1)); -} -#endif - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static int -jpeg_read_scanlines_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* scanlines, uint32 max_lines) -{ - return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_scanlines(cinfo,scanlines,max_lines),1)); -} -#endif - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static int -jpeg_read_raw_data_encap(OJPEGState* sp, jpeg_decompress_struct* cinfo, void* data, uint32 max_lines) -{ - return(SETJMP(sp->exit_jmpbuf)?0:(jpeg_read_raw_data(cinfo,data,max_lines),1)); -} -#endif - -#ifndef LIBJPEG_ENCAP_EXTERNAL -static void -jpeg_encap_unwind(TIFF* tif) -{ - OJPEGState* sp=(OJPEGState*)tif->tif_data; - LONGJMP(sp->exit_jmpbuf,1); -} -#endif - -static void -OJPEGLibjpegJpegErrorMgrOutputMessage(jpeg_common_struct* cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - (*cinfo->err->format_message)(cinfo,buffer); - TIFFWarningExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg","%s",buffer); -} - -static void -OJPEGLibjpegJpegErrorMgrErrorExit(jpeg_common_struct* cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - (*cinfo->err->format_message)(cinfo,buffer); - TIFFErrorExt(((TIFF*)(cinfo->client_data))->tif_clientdata,"LibJpeg","%s",buffer); - jpeg_encap_unwind((TIFF*)(cinfo->client_data)); -} - -static void -OJPEGLibjpegJpegSourceMgrInitSource(jpeg_decompress_struct* cinfo) -{ - (void)cinfo; -} - -static boolean -OJPEGLibjpegJpegSourceMgrFillInputBuffer(jpeg_decompress_struct* cinfo) -{ - TIFF* tif=(TIFF*)cinfo->client_data; - OJPEGState* sp=(OJPEGState*)tif->tif_data; - void* mem=0; - uint32 len=0U; - if (OJPEGWriteStream(tif,&mem,&len)==0) - { - TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Premature end of JPEG data"); - jpeg_encap_unwind(tif); - } - sp->libjpeg_jpeg_source_mgr.bytes_in_buffer=len; - sp->libjpeg_jpeg_source_mgr.next_input_byte=mem; - return(1); -} - -static void -OJPEGLibjpegJpegSourceMgrSkipInputData(jpeg_decompress_struct* cinfo, long num_bytes) -{ - TIFF* tif=(TIFF*)cinfo->client_data; - (void)num_bytes; - TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); - jpeg_encap_unwind(tif); -} - -static boolean -OJPEGLibjpegJpegSourceMgrResyncToRestart(jpeg_decompress_struct* cinfo, int desired) -{ - TIFF* tif=(TIFF*)cinfo->client_data; - (void)desired; - TIFFErrorExt(tif->tif_clientdata,"LibJpeg","Unexpected error"); - jpeg_encap_unwind(tif); - return(0); -} - -static void -OJPEGLibjpegJpegSourceMgrTermSource(jpeg_decompress_struct* cinfo) -{ - (void)cinfo; -} - -#endif - - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_open.c b/tiff/libtiff/tif_open.c deleted file mode 100755 index c44e878..0000000 --- a/tiff/libtiff/tif_open.c +++ /dev/null @@ -1,725 +0,0 @@ -/* $Id: tif_open.c,v 1.46 2010-12-06 16:54:54 faxguy Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - */ -#include "tiffiop.h" - -/* - * Dummy functions to fill the omitted client procedures. - */ -static int -_tiffDummyMapProc(thandle_t fd, void** pbase, toff_t* psize) -{ - (void) fd; (void) pbase; (void) psize; - return (0); -} - -static void -_tiffDummyUnmapProc(thandle_t fd, void* base, toff_t size) -{ - (void) fd; (void) base; (void) size; -} - -int -_TIFFgetMode(const char* mode, const char* module) -{ - int m = -1; - - switch (mode[0]) { - case 'r': - m = O_RDONLY; - if (mode[1] == '+') - m = O_RDWR; - break; - case 'w': - case 'a': - m = O_RDWR|O_CREAT; - if (mode[0] == 'w') - m |= O_TRUNC; - break; - default: - TIFFErrorExt(0, module, "\"%s\": Bad mode", mode); - break; - } - return (m); -} - -TIFF* -TIFFClientOpen( - const char* name, const char* mode, - thandle_t clientdata, - TIFFReadWriteProc readproc, - TIFFReadWriteProc writeproc, - TIFFSeekProc seekproc, - TIFFCloseProc closeproc, - TIFFSizeProc sizeproc, - TIFFMapFileProc mapproc, - TIFFUnmapFileProc unmapproc -) -{ - static const char module[] = "TIFFClientOpen"; - TIFF *tif; - int m; - const char* cp; - - /* The following are configuration checks. They should be redundant, but should not - * compile to any actual code in an optimised release build anyway. If any of them - * fail, (makefile-based or other) configuration is not correct */ - assert(sizeof(uint8)==1); - assert(sizeof(int8)==1); - assert(sizeof(uint16)==2); - assert(sizeof(int16)==2); - assert(sizeof(uint32)==4); - assert(sizeof(int32)==4); - assert(sizeof(uint64)==8); - assert(sizeof(int64)==8); - assert(sizeof(tmsize_t)==sizeof(void*)); - { - union{ - uint8 a8[2]; - uint16 a16; - } n; - n.a8[0]=1; - n.a8[1]=0; - #ifdef WORDS_BIGENDIAN - assert(n.a16==256); - #else - assert(n.a16==1); - #endif - } - - m = _TIFFgetMode(mode, module); - if (m == -1) - goto bad2; - tif = (TIFF *)_TIFFmalloc((tmsize_t)(sizeof (TIFF) + strlen(name) + 1)); - if (tif == NULL) { - TIFFErrorExt(clientdata, module, "%s: Out of memory (TIFF structure)", name); - goto bad2; - } - _TIFFmemset(tif, 0, sizeof (*tif)); - tif->tif_name = (char *)tif + sizeof (TIFF); - strcpy(tif->tif_name, name); - tif->tif_mode = m &~ (O_CREAT|O_TRUNC); - tif->tif_curdir = (uint16) -1; /* non-existent directory */ - tif->tif_curoff = 0; - tif->tif_curstrip = (uint32) -1; /* invalid strip */ - tif->tif_row = (uint32) -1; /* read/write pre-increment */ - tif->tif_clientdata = clientdata; - if (!readproc || !writeproc || !seekproc || !closeproc || !sizeproc) { - TIFFErrorExt(clientdata, module, - "One of the client procedures is NULL pointer."); - goto bad2; - } - tif->tif_readproc = readproc; - tif->tif_writeproc = writeproc; - tif->tif_seekproc = seekproc; - tif->tif_closeproc = closeproc; - tif->tif_sizeproc = sizeproc; - if (mapproc) - tif->tif_mapproc = mapproc; - else - tif->tif_mapproc = _tiffDummyMapProc; - if (unmapproc) - tif->tif_unmapproc = unmapproc; - else - tif->tif_unmapproc = _tiffDummyUnmapProc; - _TIFFSetDefaultCompressionState(tif); /* setup default state */ - /* - * Default is to return data MSB2LSB and enable the - * use of memory-mapped files and strip chopping when - * a file is opened read-only. - */ - tif->tif_flags = FILLORDER_MSB2LSB; - if (m == O_RDONLY ) - tif->tif_flags |= TIFF_MAPPED; - - #ifdef STRIPCHOP_DEFAULT - if (m == O_RDONLY || m == O_RDWR) - tif->tif_flags |= STRIPCHOP_DEFAULT; - #endif - - /* - * Process library-specific flags in the open mode string. - * The following flags may be used to control intrinsic library - * behaviour that may or may not be desirable (usually for - * compatibility with some application that claims to support - * TIFF but only supports some braindead idea of what the - * vendor thinks TIFF is): - * - * 'l' use little-endian byte order for creating a file - * 'b' use big-endian byte order for creating a file - * 'L' read/write information using LSB2MSB bit order - * 'B' read/write information using MSB2LSB bit order - * 'H' read/write information using host bit order - * 'M' enable use of memory-mapped files when supported - * 'm' disable use of memory-mapped files - * 'C' enable strip chopping support when reading - * 'c' disable strip chopping support - * 'h' read TIFF header only, do not load the first IFD - * '4' ClassicTIFF for creating a file (default) - * '8' BigTIFF for creating a file - * - * The use of the 'l' and 'b' flags is strongly discouraged. - * These flags are provided solely because numerous vendors, - * typically on the PC, do not correctly support TIFF; they - * only support the Intel little-endian byte order. This - * support is not configured by default because it supports - * the violation of the TIFF spec that says that readers *MUST* - * support both byte orders. It is strongly recommended that - * you not use this feature except to deal with busted apps - * that write invalid TIFF. And even in those cases you should - * bang on the vendors to fix their software. - * - * The 'L', 'B', and 'H' flags are intended for applications - * that can optimize operations on data by using a particular - * bit order. By default the library returns data in MSB2LSB - * bit order for compatibiltiy with older versions of this - * library. Returning data in the bit order of the native cpu - * makes the most sense but also requires applications to check - * the value of the FillOrder tag; something they probably do - * not do right now. - * - * The 'M' and 'm' flags are provided because some virtual memory - * systems exhibit poor behaviour when large images are mapped. - * These options permit clients to control the use of memory-mapped - * files on a per-file basis. - * - * The 'C' and 'c' flags are provided because the library support - * for chopping up large strips into multiple smaller strips is not - * application-transparent and as such can cause problems. The 'c' - * option permits applications that only want to look at the tags, - * for example, to get the unadulterated TIFF tag information. - */ - for (cp = mode; *cp; cp++) - switch (*cp) { - case 'b': - #ifndef WORDS_BIGENDIAN - if (m&O_CREAT) - tif->tif_flags |= TIFF_SWAB; - #endif - break; - case 'l': - #ifdef WORDS_BIGENDIAN - if ((m&O_CREAT)) - tif->tif_flags |= TIFF_SWAB; - #endif - break; - case 'B': - tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | - FILLORDER_MSB2LSB; - break; - case 'L': - tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | - FILLORDER_LSB2MSB; - break; - case 'H': - tif->tif_flags = (tif->tif_flags &~ TIFF_FILLORDER) | - HOST_FILLORDER; - break; - case 'M': - if (m == O_RDONLY) - tif->tif_flags |= TIFF_MAPPED; - break; - case 'm': - if (m == O_RDONLY) - tif->tif_flags &= ~TIFF_MAPPED; - break; - case 'C': - if (m == O_RDONLY) - tif->tif_flags |= TIFF_STRIPCHOP; - break; - case 'c': - if (m == O_RDONLY) - tif->tif_flags &= ~TIFF_STRIPCHOP; - break; - case 'h': - tif->tif_flags |= TIFF_HEADERONLY; - break; - case '8': - if (m&O_CREAT) - tif->tif_flags |= TIFF_BIGTIFF; - break; - } - /* - * Read in TIFF header. - */ - if ((m & O_TRUNC) || - !ReadOK(tif, &tif->tif_header, sizeof (TIFFHeaderClassic))) { - if (tif->tif_mode == O_RDONLY) { - TIFFErrorExt(tif->tif_clientdata, name, - "Cannot read TIFF header"); - goto bad; - } - /* - * Setup header and write. - */ - #ifdef WORDS_BIGENDIAN - tif->tif_header.common.tiff_magic = tif->tif_flags & TIFF_SWAB - ? TIFF_LITTLEENDIAN : TIFF_BIGENDIAN; - #else - tif->tif_header.common.tiff_magic = tif->tif_flags & TIFF_SWAB - ? TIFF_BIGENDIAN : TIFF_LITTLEENDIAN; - #endif - if (!(tif->tif_flags&TIFF_BIGTIFF)) - { - tif->tif_header.common.tiff_version = TIFF_VERSION_CLASSIC; - tif->tif_header.classic.tiff_diroff = 0; - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&tif->tif_header.common.tiff_version); - tif->tif_header_size = sizeof(TIFFHeaderClassic); - } - else - { - tif->tif_header.common.tiff_version = TIFF_VERSION_BIG; - tif->tif_header.big.tiff_offsetsize = 8; - tif->tif_header.big.tiff_unused = 0; - tif->tif_header.big.tiff_diroff = 0; - if (tif->tif_flags & TIFF_SWAB) - { - TIFFSwabShort(&tif->tif_header.common.tiff_version); - TIFFSwabShort(&tif->tif_header.big.tiff_offsetsize); - } - tif->tif_header_size = sizeof (TIFFHeaderBig); - } - /* - * The doc for "fopen" for some STD_C_LIBs says that if you - * open a file for modify ("+"), then you must fseek (or - * fflush?) between any freads and fwrites. This is not - * necessary on most systems, but has been shown to be needed - * on Solaris. - */ - TIFFSeekFile( tif, 0, SEEK_SET ); - if (!WriteOK(tif, &tif->tif_header, (tmsize_t)(tif->tif_header_size))) { - TIFFErrorExt(tif->tif_clientdata, name, - "Error writing TIFF header"); - goto bad; - } - /* - * Setup the byte order handling. - */ - if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) { - #ifndef WORDS_BIGENDIAN - tif->tif_flags |= TIFF_SWAB; - #endif - } else { - #ifdef WORDS_BIGENDIAN - tif->tif_flags |= TIFF_SWAB; - #endif - } - /* - * Setup default directory. - */ - if (!TIFFDefaultDirectory(tif)) - goto bad; - tif->tif_diroff = 0; - tif->tif_dirlist = NULL; - tif->tif_dirlistsize = 0; - tif->tif_dirnumber = 0; - return (tif); - } - /* - * Setup the byte order handling. - */ - if (tif->tif_header.common.tiff_magic != TIFF_BIGENDIAN && - tif->tif_header.common.tiff_magic != TIFF_LITTLEENDIAN - #if MDI_SUPPORT - && - #if HOST_BIGENDIAN - tif->tif_header.common.tiff_magic != MDI_BIGENDIAN - #else - tif->tif_header.common.tiff_magic != MDI_LITTLEENDIAN - #endif - ) { - TIFFErrorExt(tif->tif_clientdata, name, - "Not a TIFF or MDI file, bad magic number %d (0x%x)", - #else - ) { - TIFFErrorExt(tif->tif_clientdata, name, - "Not a TIFF file, bad magic number %d (0x%x)", - #endif - tif->tif_header.common.tiff_magic, - tif->tif_header.common.tiff_magic); - goto bad; - } - if (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN) { - #ifndef WORDS_BIGENDIAN - tif->tif_flags |= TIFF_SWAB; - #endif - } else { - #ifdef WORDS_BIGENDIAN - tif->tif_flags |= TIFF_SWAB; - #endif - } - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabShort(&tif->tif_header.common.tiff_version); - if ((tif->tif_header.common.tiff_version != TIFF_VERSION_CLASSIC)&& - (tif->tif_header.common.tiff_version != TIFF_VERSION_BIG)) { - TIFFErrorExt(tif->tif_clientdata, name, - "Not a TIFF file, bad version number %d (0x%x)", - tif->tif_header.common.tiff_version, - tif->tif_header.common.tiff_version); - goto bad; - } - if (tif->tif_header.common.tiff_version == TIFF_VERSION_CLASSIC) - { - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabLong(&tif->tif_header.classic.tiff_diroff); - tif->tif_header_size = sizeof(TIFFHeaderClassic); - } - else - { - if (!ReadOK(tif, ((uint8*)(&tif->tif_header) + sizeof(TIFFHeaderClassic)), (sizeof(TIFFHeaderBig)-sizeof(TIFFHeaderClassic)))) - { - TIFFErrorExt(tif->tif_clientdata, name, - "Cannot read TIFF header"); - goto bad; - } - if (tif->tif_flags & TIFF_SWAB) - { - TIFFSwabShort(&tif->tif_header.big.tiff_offsetsize); - TIFFSwabLong8(&tif->tif_header.big.tiff_diroff); - } - if (tif->tif_header.big.tiff_offsetsize != 8) - { - TIFFErrorExt(tif->tif_clientdata, name, - "Not a TIFF file, bad BigTIFF offsetsize %d (0x%x)", - tif->tif_header.big.tiff_offsetsize, - tif->tif_header.big.tiff_offsetsize); - goto bad; - } - if (tif->tif_header.big.tiff_unused != 0) - { - TIFFErrorExt(tif->tif_clientdata, name, - "Not a TIFF file, bad BigTIFF unused %d (0x%x)", - tif->tif_header.big.tiff_unused, - tif->tif_header.big.tiff_unused); - goto bad; - } - tif->tif_header_size = sizeof(TIFFHeaderBig); - tif->tif_flags |= TIFF_BIGTIFF; - } - tif->tif_flags |= TIFF_MYBUFFER; - tif->tif_rawcp = tif->tif_rawdata = 0; - tif->tif_rawdatasize = 0; - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = 0; - - switch (mode[0]) { - case 'r': - if (!(tif->tif_flags&TIFF_BIGTIFF)) - tif->tif_nextdiroff = tif->tif_header.classic.tiff_diroff; - else - tif->tif_nextdiroff = tif->tif_header.big.tiff_diroff; - /* - * Try to use a memory-mapped file if the client - * has not explicitly suppressed usage with the - * 'm' flag in the open mode (see above). - */ - if (tif->tif_flags & TIFF_MAPPED) - { - toff_t n; - if (TIFFMapFileContents(tif,(void**)(&tif->tif_base),&n)) - { - tif->tif_size=(tmsize_t)n; - assert((toff_t)tif->tif_size==n); - } - else - tif->tif_flags &= ~TIFF_MAPPED; - } - /* - * Sometimes we do not want to read the first directory (for example, - * it may be broken) and want to proceed to other directories. I this - * case we use the TIFF_HEADERONLY flag to open file and return - * immediately after reading TIFF header. - */ - if (tif->tif_flags & TIFF_HEADERONLY) - return (tif); - - /* - * Setup initial directory. - */ - if (TIFFReadDirectory(tif)) { - tif->tif_rawcc = (tmsize_t)-1; - tif->tif_flags |= TIFF_BUFFERSETUP; - return (tif); - } - break; - case 'a': - /* - * New directories are automatically append - * to the end of the directory chain when they - * are written out (see TIFFWriteDirectory). - */ - if (!TIFFDefaultDirectory(tif)) - goto bad; - return (tif); - } -bad: - tif->tif_mode = O_RDONLY; /* XXX avoid flush */ - TIFFCleanup(tif); -bad2: - return ((TIFF*)0); -} - -/* - * Query functions to access private data. - */ - -/* - * Return open file's name. - */ -const char * -TIFFFileName(TIFF* tif) -{ - return (tif->tif_name); -} - -/* - * Set the file name. - */ -const char * -TIFFSetFileName(TIFF* tif, const char *name) -{ - const char* old_name = tif->tif_name; - tif->tif_name = (char *)name; - return (old_name); -} - -/* - * Return open file's I/O descriptor. - */ -tfd_t -TIFFFileno(TIFF* tif) -{ - return (tif->tif_fd); -} - -/* - * Set open file's I/O descriptor, and return previous value. - */ -tfd_t -TIFFSetFileno(TIFF* tif, tfd_t fd) -{ - tfd_t old_fd = tif->tif_fd; - tif->tif_fd = fd; - return old_fd; -} - -/* - * Return open file's clientdata. - */ -thandle_t -TIFFClientdata(TIFF* tif) -{ - return (tif->tif_clientdata); -} - -/* - * Set open file's clientdata, and return previous value. - */ -thandle_t -TIFFSetClientdata(TIFF* tif, thandle_t newvalue) -{ - thandle_t m = tif->tif_clientdata; - tif->tif_clientdata = newvalue; - return m; -} - -/* - * Return read/write mode. - */ -int -TIFFGetMode(TIFF* tif) -{ - return (tif->tif_mode); -} - -/* - * Return read/write mode. - */ -int -TIFFSetMode(TIFF* tif, int mode) -{ - int old_mode = tif->tif_mode; - tif->tif_mode = mode; - return (old_mode); -} - -/* - * Return nonzero if file is organized in - * tiles; zero if organized as strips. - */ -int -TIFFIsTiled(TIFF* tif) -{ - return (isTiled(tif)); -} - -/* - * Return current row being read/written. - */ -uint32 -TIFFCurrentRow(TIFF* tif) -{ - return (tif->tif_row); -} - -/* - * Return index of the current directory. - */ -uint16 -TIFFCurrentDirectory(TIFF* tif) -{ - return (tif->tif_curdir); -} - -/* - * Return current strip. - */ -uint32 -TIFFCurrentStrip(TIFF* tif) -{ - return (tif->tif_curstrip); -} - -/* - * Return current tile. - */ -uint32 -TIFFCurrentTile(TIFF* tif) -{ - return (tif->tif_curtile); -} - -/* - * Return nonzero if the file has byte-swapped data. - */ -int -TIFFIsByteSwapped(TIFF* tif) -{ - return ((tif->tif_flags & TIFF_SWAB) != 0); -} - -/* - * Return nonzero if the data is returned up-sampled. - */ -int -TIFFIsUpSampled(TIFF* tif) -{ - return (isUpSampled(tif)); -} - -/* - * Return nonzero if the data is returned in MSB-to-LSB bit order. - */ -int -TIFFIsMSB2LSB(TIFF* tif) -{ - return (isFillOrder(tif, FILLORDER_MSB2LSB)); -} - -/* - * Return nonzero if given file was written in big-endian order. - */ -int -TIFFIsBigEndian(TIFF* tif) -{ - return (tif->tif_header.common.tiff_magic == TIFF_BIGENDIAN); -} - -/* - * Return pointer to file read method. - */ -TIFFReadWriteProc -TIFFGetReadProc(TIFF* tif) -{ - return (tif->tif_readproc); -} - -/* - * Return pointer to file write method. - */ -TIFFReadWriteProc -TIFFGetWriteProc(TIFF* tif) -{ - return (tif->tif_writeproc); -} - -/* - * Return pointer to file seek method. - */ -TIFFSeekProc -TIFFGetSeekProc(TIFF* tif) -{ - return (tif->tif_seekproc); -} - -/* - * Return pointer to file close method. - */ -TIFFCloseProc -TIFFGetCloseProc(TIFF* tif) -{ - return (tif->tif_closeproc); -} - -/* - * Return pointer to file size requesting method. - */ -TIFFSizeProc -TIFFGetSizeProc(TIFF* tif) -{ - return (tif->tif_sizeproc); -} - -/* - * Return pointer to memory mapping method. - */ -TIFFMapFileProc -TIFFGetMapFileProc(TIFF* tif) -{ - return (tif->tif_mapproc); -} - -/* - * Return pointer to memory unmapping method. - */ -TIFFUnmapFileProc -TIFFGetUnmapFileProc(TIFF* tif) -{ - return (tif->tif_unmapproc); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_packbits.c b/tiff/libtiff/tif_packbits.c deleted file mode 100755 index 9e77190..0000000 --- a/tiff/libtiff/tif_packbits.c +++ /dev/null @@ -1,300 +0,0 @@ -/* $Id: tif_packbits.c,v 1.22 2012-06-20 05:25:33 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef PACKBITS_SUPPORT -/* - * TIFF Library. - * - * PackBits Compression Algorithm Support - */ -#include - -static int -PackBitsPreEncode(TIFF* tif, uint16 s) -{ - (void) s; - - if (!(tif->tif_data = (uint8*)_TIFFmalloc(sizeof(tmsize_t)))) - return (0); - /* - * Calculate the scanline/tile-width size in bytes. - */ - if (isTiled(tif)) - *(tmsize_t*)tif->tif_data = TIFFTileRowSize(tif); - else - *(tmsize_t*)tif->tif_data = TIFFScanlineSize(tif); - return (1); -} - -static int -PackBitsPostEncode(TIFF* tif) -{ - if (tif->tif_data) - _TIFFfree(tif->tif_data); - return (1); -} - -/* - * Encode a run of pixels. - */ -static int -PackBitsEncode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s) -{ - unsigned char* bp = (unsigned char*) buf; - uint8* op; - uint8* ep; - uint8* lastliteral; - long n, slop; - int b; - enum { BASE, LITERAL, RUN, LITERAL_RUN } state; - - (void) s; - op = tif->tif_rawcp; - ep = tif->tif_rawdata + tif->tif_rawdatasize; - state = BASE; - lastliteral = 0; - while (cc > 0) { - /* - * Find the longest string of identical bytes. - */ - b = *bp++, cc--, n = 1; - for (; cc > 0 && b == *bp; cc--, bp++) - n++; - again: - if (op + 2 >= ep) { /* insure space for new data */ - /* - * Be careful about writing the last - * literal. Must write up to that point - * and then copy the remainder to the - * front of the buffer. - */ - if (state == LITERAL || state == LITERAL_RUN) { - slop = (long)(op - lastliteral); - tif->tif_rawcc += (tmsize_t)(lastliteral - tif->tif_rawcp); - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - while (slop-- > 0) - *op++ = *lastliteral++; - lastliteral = tif->tif_rawcp; - } else { - tif->tif_rawcc += (tmsize_t)(op - tif->tif_rawcp); - if (!TIFFFlushData1(tif)) - return (-1); - op = tif->tif_rawcp; - } - } - switch (state) { - case BASE: /* initial state, set run/literal */ - if (n > 1) { - state = RUN; - if (n > 128) { - *op++ = (uint8) -127; - *op++ = (uint8) b; - n -= 128; - goto again; - } - *op++ = (uint8)(-(n-1)); - *op++ = (uint8) b; - } else { - lastliteral = op; - *op++ = 0; - *op++ = (uint8) b; - state = LITERAL; - } - break; - case LITERAL: /* last object was literal string */ - if (n > 1) { - state = LITERAL_RUN; - if (n > 128) { - *op++ = (uint8) -127; - *op++ = (uint8) b; - n -= 128; - goto again; - } - *op++ = (uint8)(-(n-1)); /* encode run */ - *op++ = (uint8) b; - } else { /* extend literal */ - if (++(*lastliteral) == 127) - state = BASE; - *op++ = (uint8) b; - } - break; - case RUN: /* last object was run */ - if (n > 1) { - if (n > 128) { - *op++ = (uint8) -127; - *op++ = (uint8) b; - n -= 128; - goto again; - } - *op++ = (uint8)(-(n-1)); - *op++ = (uint8) b; - } else { - lastliteral = op; - *op++ = 0; - *op++ = (uint8) b; - state = LITERAL; - } - break; - case LITERAL_RUN: /* literal followed by a run */ - /* - * Check to see if previous run should - * be converted to a literal, in which - * case we convert literal-run-literal - * to a single literal. - */ - if (n == 1 && op[-2] == (uint8) -1 && - *lastliteral < 126) { - state = (((*lastliteral) += 2) == 127 ? - BASE : LITERAL); - op[-2] = op[-1]; /* replicate */ - } else - state = RUN; - goto again; - } - } - tif->tif_rawcc += (tmsize_t)(op - tif->tif_rawcp); - tif->tif_rawcp = op; - return (1); -} - -/* - * Encode a rectangular chunk of pixels. We break it up - * into row-sized pieces to insure that encoded runs do - * not span rows. Otherwise, there can be problems with - * the decoder if data is read, for example, by scanlines - * when it was encoded by strips. - */ -static int -PackBitsEncodeChunk(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - tmsize_t rowsize = *(tmsize_t*)tif->tif_data; - - while (cc > 0) { - tmsize_t chunk = rowsize; - - if( cc < chunk ) - chunk = cc; - - if (PackBitsEncode(tif, bp, chunk, s) < 0) - return (-1); - bp += chunk; - cc -= chunk; - } - return (1); -} - -static int -PackBitsDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "PackBitsDecode"; - char *bp; - tmsize_t cc; - long n; - int b; - - (void) s; - bp = (char*) tif->tif_rawcp; - cc = tif->tif_rawcc; - while (cc > 0 && occ > 0) { - n = (long) *bp++, cc--; - /* - * Watch out for compilers that - * don't sign extend chars... - */ - if (n >= 128) - n -= 256; - if (n < 0) { /* replicate next byte -n+1 times */ - if (n == -128) /* nop */ - continue; - n = -n + 1; - if( occ < (tmsize_t)n ) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Discarding %lu bytes to avoid buffer overrun", - (unsigned long) ((tmsize_t)n - occ)); - n = (long)occ; - } - occ -= n; - b = *bp++, cc--; - while (n-- > 0) - *op++ = (uint8) b; - } else { /* copy next n+1 bytes literally */ - if (occ < (tmsize_t)(n + 1)) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Discarding %lu bytes to avoid buffer overrun", - (unsigned long) ((tmsize_t)n - occ + 1)); - n = (long)occ - 1; - } - if (cc < (tmsize_t) (n+1)) - { - TIFFWarningExt(tif->tif_clientdata, module, - "Terminating PackBitsDecode due to lack of data."); - break; - } - _TIFFmemcpy(op, bp, ++n); - op += n; occ -= n; - bp += n; cc -= n; - } - } - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - if (occ > 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data for scanline %lu", - (unsigned long) tif->tif_row); - return (0); - } - return (1); -} - -int -TIFFInitPackBits(TIFF* tif, int scheme) -{ - (void) scheme; - tif->tif_decoderow = PackBitsDecode; - tif->tif_decodestrip = PackBitsDecode; - tif->tif_decodetile = PackBitsDecode; - tif->tif_preencode = PackBitsPreEncode; - tif->tif_postencode = PackBitsPostEncode; - tif->tif_encoderow = PackBitsEncode; - tif->tif_encodestrip = PackBitsEncodeChunk; - tif->tif_encodetile = PackBitsEncodeChunk; - return (1); -} -#endif /* PACKBITS_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_pixarlog.c b/tiff/libtiff/tif_pixarlog.c deleted file mode 100755 index 044c411..0000000 --- a/tiff/libtiff/tif_pixarlog.c +++ /dev/null @@ -1,1442 +0,0 @@ -/* $Id: tif_pixarlog.c,v 1.39 2012-12-10 17:27:13 tgl Exp $ */ - -/* - * Copyright (c) 1996-1997 Sam Leffler - * Copyright (c) 1996 Pixar - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Pixar, Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Pixar, Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL PIXAR, SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef PIXARLOG_SUPPORT - -/* - * TIFF Library. - * PixarLog Compression Support - * - * Contributed by Dan McCoy. - * - * PixarLog film support uses the TIFF library to store companded - * 11 bit values into a tiff file, which are compressed using the - * zip compressor. - * - * The codec can take as input and produce as output 32-bit IEEE float values - * as well as 16-bit or 8-bit unsigned integer values. - * - * On writing any of the above are converted into the internal - * 11-bit log format. In the case of 8 and 16 bit values, the - * input is assumed to be unsigned linear color values that represent - * the range 0-1. In the case of IEEE values, the 0-1 range is assumed to - * be the normal linear color range, in addition over 1 values are - * accepted up to a value of about 25.0 to encode "hot" hightlights and such. - * The encoding is lossless for 8-bit values, slightly lossy for the - * other bit depths. The actual color precision should be better - * than the human eye can perceive with extra room to allow for - * error introduced by further image computation. As with any quantized - * color format, it is possible to perform image calculations which - * expose the quantization error. This format should certainly be less - * susceptable to such errors than standard 8-bit encodings, but more - * susceptable than straight 16-bit or 32-bit encodings. - * - * On reading the internal format is converted to the desired output format. - * The program can request which format it desires by setting the internal - * pseudo tag TIFFTAG_PIXARLOGDATAFMT to one of these possible values: - * PIXARLOGDATAFMT_FLOAT = provide IEEE float values. - * PIXARLOGDATAFMT_16BIT = provide unsigned 16-bit integer values - * PIXARLOGDATAFMT_8BIT = provide unsigned 8-bit integer values - * - * alternately PIXARLOGDATAFMT_8BITABGR provides unsigned 8-bit integer - * values with the difference that if there are exactly three or four channels - * (rgb or rgba) it swaps the channel order (bgr or abgr). - * - * PIXARLOGDATAFMT_11BITLOG provides the internal encoding directly - * packed in 16-bit values. However no tools are supplied for interpreting - * these values. - * - * "hot" (over 1.0) areas written in floating point get clamped to - * 1.0 in the integer data types. - * - * When the file is closed after writing, the bit depth and sample format - * are set always to appear as if 8-bit data has been written into it. - * That way a naive program unaware of the particulars of the encoding - * gets the format it is most likely able to handle. - * - * The codec does it's own horizontal differencing step on the coded - * values so the libraries predictor stuff should be turned off. - * The codec also handle byte swapping the encoded values as necessary - * since the library does not have the information necessary - * to know the bit depth of the raw unencoded buffer. - * - * NOTE: This decoder does not appear to update tif_rawcp, and tif_rawcc. - * This can cause problems with the implementation of CHUNKY_STRIP_READ_SUPPORT - * as noted in http://trac.osgeo.org/gdal/ticket/3894. FrankW - Jan'11 - */ - -#include "tif_predict.h" -#include "zlib.h" - -#include -#include -#include - -/* Tables for converting to/from 11 bit coded values */ - -#define TSIZE 2048 /* decode table size (11-bit tokens) */ -#define TSIZEP1 2049 /* Plus one for slop */ -#define ONE 1250 /* token value of 1.0 exactly */ -#define RATIO 1.004 /* nominal ratio for log part */ - -#define CODE_MASK 0x7ff /* 11 bits. */ - -static float Fltsize; -static float LogK1, LogK2; - -#define REPEAT(n, op) { int i; i=n; do { i--; op; } while (i>0); } - -static void -horizontalAccumulateF(uint16 *wp, int n, int stride, float *op, - float *ToLinearF) -{ - register unsigned int cr, cg, cb, ca, mask; - register float t0, t1, t2, t3; - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - t0 = ToLinearF[cr = (wp[0] & mask)]; - t1 = ToLinearF[cg = (wp[1] & mask)]; - t2 = ToLinearF[cb = (wp[2] & mask)]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - n -= 3; - while (n > 0) { - wp += 3; - op += 3; - n -= 3; - t0 = ToLinearF[(cr += wp[0]) & mask]; - t1 = ToLinearF[(cg += wp[1]) & mask]; - t2 = ToLinearF[(cb += wp[2]) & mask]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - } - } else if (stride == 4) { - t0 = ToLinearF[cr = (wp[0] & mask)]; - t1 = ToLinearF[cg = (wp[1] & mask)]; - t2 = ToLinearF[cb = (wp[2] & mask)]; - t3 = ToLinearF[ca = (wp[3] & mask)]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - op[3] = t3; - n -= 4; - while (n > 0) { - wp += 4; - op += 4; - n -= 4; - t0 = ToLinearF[(cr += wp[0]) & mask]; - t1 = ToLinearF[(cg += wp[1]) & mask]; - t2 = ToLinearF[(cb += wp[2]) & mask]; - t3 = ToLinearF[(ca += wp[3]) & mask]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - op[3] = t3; - } - } else { - REPEAT(stride, *op = ToLinearF[*wp&mask]; wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; *op = ToLinearF[*wp&mask]; wp++; op++) - n -= stride; - } - } - } -} - -static void -horizontalAccumulate12(uint16 *wp, int n, int stride, int16 *op, - float *ToLinearF) -{ - register unsigned int cr, cg, cb, ca, mask; - register float t0, t1, t2, t3; - -#define SCALE12 2048.0F -#define CLAMP12(t) (((t) < 3071) ? (uint16) (t) : 3071) - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - t0 = ToLinearF[cr = (wp[0] & mask)] * SCALE12; - t1 = ToLinearF[cg = (wp[1] & mask)] * SCALE12; - t2 = ToLinearF[cb = (wp[2] & mask)] * SCALE12; - op[0] = CLAMP12(t0); - op[1] = CLAMP12(t1); - op[2] = CLAMP12(t2); - n -= 3; - while (n > 0) { - wp += 3; - op += 3; - n -= 3; - t0 = ToLinearF[(cr += wp[0]) & mask] * SCALE12; - t1 = ToLinearF[(cg += wp[1]) & mask] * SCALE12; - t2 = ToLinearF[(cb += wp[2]) & mask] * SCALE12; - op[0] = CLAMP12(t0); - op[1] = CLAMP12(t1); - op[2] = CLAMP12(t2); - } - } else if (stride == 4) { - t0 = ToLinearF[cr = (wp[0] & mask)] * SCALE12; - t1 = ToLinearF[cg = (wp[1] & mask)] * SCALE12; - t2 = ToLinearF[cb = (wp[2] & mask)] * SCALE12; - t3 = ToLinearF[ca = (wp[3] & mask)] * SCALE12; - op[0] = CLAMP12(t0); - op[1] = CLAMP12(t1); - op[2] = CLAMP12(t2); - op[3] = CLAMP12(t3); - n -= 4; - while (n > 0) { - wp += 4; - op += 4; - n -= 4; - t0 = ToLinearF[(cr += wp[0]) & mask] * SCALE12; - t1 = ToLinearF[(cg += wp[1]) & mask] * SCALE12; - t2 = ToLinearF[(cb += wp[2]) & mask] * SCALE12; - t3 = ToLinearF[(ca += wp[3]) & mask] * SCALE12; - op[0] = CLAMP12(t0); - op[1] = CLAMP12(t1); - op[2] = CLAMP12(t2); - op[3] = CLAMP12(t3); - } - } else { - REPEAT(stride, t0 = ToLinearF[*wp&mask] * SCALE12; - *op = CLAMP12(t0); wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; t0 = ToLinearF[wp[stride]&mask]*SCALE12; - *op = CLAMP12(t0); wp++; op++) - n -= stride; - } - } - } -} - -static void -horizontalAccumulate16(uint16 *wp, int n, int stride, uint16 *op, - uint16 *ToLinear16) -{ - register unsigned int cr, cg, cb, ca, mask; - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - op[0] = ToLinear16[cr = (wp[0] & mask)]; - op[1] = ToLinear16[cg = (wp[1] & mask)]; - op[2] = ToLinear16[cb = (wp[2] & mask)]; - n -= 3; - while (n > 0) { - wp += 3; - op += 3; - n -= 3; - op[0] = ToLinear16[(cr += wp[0]) & mask]; - op[1] = ToLinear16[(cg += wp[1]) & mask]; - op[2] = ToLinear16[(cb += wp[2]) & mask]; - } - } else if (stride == 4) { - op[0] = ToLinear16[cr = (wp[0] & mask)]; - op[1] = ToLinear16[cg = (wp[1] & mask)]; - op[2] = ToLinear16[cb = (wp[2] & mask)]; - op[3] = ToLinear16[ca = (wp[3] & mask)]; - n -= 4; - while (n > 0) { - wp += 4; - op += 4; - n -= 4; - op[0] = ToLinear16[(cr += wp[0]) & mask]; - op[1] = ToLinear16[(cg += wp[1]) & mask]; - op[2] = ToLinear16[(cb += wp[2]) & mask]; - op[3] = ToLinear16[(ca += wp[3]) & mask]; - } - } else { - REPEAT(stride, *op = ToLinear16[*wp&mask]; wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; *op = ToLinear16[*wp&mask]; wp++; op++) - n -= stride; - } - } - } -} - -/* - * Returns the log encoded 11-bit values with the horizontal - * differencing undone. - */ -static void -horizontalAccumulate11(uint16 *wp, int n, int stride, uint16 *op) -{ - register unsigned int cr, cg, cb, ca, mask; - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - op[0] = cr = wp[0]; op[1] = cg = wp[1]; op[2] = cb = wp[2]; - n -= 3; - while (n > 0) { - wp += 3; - op += 3; - n -= 3; - op[0] = (cr += wp[0]) & mask; - op[1] = (cg += wp[1]) & mask; - op[2] = (cb += wp[2]) & mask; - } - } else if (stride == 4) { - op[0] = cr = wp[0]; op[1] = cg = wp[1]; - op[2] = cb = wp[2]; op[3] = ca = wp[3]; - n -= 4; - while (n > 0) { - wp += 4; - op += 4; - n -= 4; - op[0] = (cr += wp[0]) & mask; - op[1] = (cg += wp[1]) & mask; - op[2] = (cb += wp[2]) & mask; - op[3] = (ca += wp[3]) & mask; - } - } else { - REPEAT(stride, *op = *wp&mask; wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; *op = *wp&mask; wp++; op++) - n -= stride; - } - } - } -} - -static void -horizontalAccumulate8(uint16 *wp, int n, int stride, unsigned char *op, - unsigned char *ToLinear8) -{ - register unsigned int cr, cg, cb, ca, mask; - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - op[0] = ToLinear8[cr = (wp[0] & mask)]; - op[1] = ToLinear8[cg = (wp[1] & mask)]; - op[2] = ToLinear8[cb = (wp[2] & mask)]; - n -= 3; - while (n > 0) { - n -= 3; - wp += 3; - op += 3; - op[0] = ToLinear8[(cr += wp[0]) & mask]; - op[1] = ToLinear8[(cg += wp[1]) & mask]; - op[2] = ToLinear8[(cb += wp[2]) & mask]; - } - } else if (stride == 4) { - op[0] = ToLinear8[cr = (wp[0] & mask)]; - op[1] = ToLinear8[cg = (wp[1] & mask)]; - op[2] = ToLinear8[cb = (wp[2] & mask)]; - op[3] = ToLinear8[ca = (wp[3] & mask)]; - n -= 4; - while (n > 0) { - n -= 4; - wp += 4; - op += 4; - op[0] = ToLinear8[(cr += wp[0]) & mask]; - op[1] = ToLinear8[(cg += wp[1]) & mask]; - op[2] = ToLinear8[(cb += wp[2]) & mask]; - op[3] = ToLinear8[(ca += wp[3]) & mask]; - } - } else { - REPEAT(stride, *op = ToLinear8[*wp&mask]; wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; *op = ToLinear8[*wp&mask]; wp++; op++) - n -= stride; - } - } - } -} - - -static void -horizontalAccumulate8abgr(uint16 *wp, int n, int stride, unsigned char *op, - unsigned char *ToLinear8) -{ - register unsigned int cr, cg, cb, ca, mask; - register unsigned char t0, t1, t2, t3; - - if (n >= stride) { - mask = CODE_MASK; - if (stride == 3) { - op[0] = 0; - t1 = ToLinear8[cb = (wp[2] & mask)]; - t2 = ToLinear8[cg = (wp[1] & mask)]; - t3 = ToLinear8[cr = (wp[0] & mask)]; - op[1] = t1; - op[2] = t2; - op[3] = t3; - n -= 3; - while (n > 0) { - n -= 3; - wp += 3; - op += 4; - op[0] = 0; - t1 = ToLinear8[(cb += wp[2]) & mask]; - t2 = ToLinear8[(cg += wp[1]) & mask]; - t3 = ToLinear8[(cr += wp[0]) & mask]; - op[1] = t1; - op[2] = t2; - op[3] = t3; - } - } else if (stride == 4) { - t0 = ToLinear8[ca = (wp[3] & mask)]; - t1 = ToLinear8[cb = (wp[2] & mask)]; - t2 = ToLinear8[cg = (wp[1] & mask)]; - t3 = ToLinear8[cr = (wp[0] & mask)]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - op[3] = t3; - n -= 4; - while (n > 0) { - n -= 4; - wp += 4; - op += 4; - t0 = ToLinear8[(ca += wp[3]) & mask]; - t1 = ToLinear8[(cb += wp[2]) & mask]; - t2 = ToLinear8[(cg += wp[1]) & mask]; - t3 = ToLinear8[(cr += wp[0]) & mask]; - op[0] = t0; - op[1] = t1; - op[2] = t2; - op[3] = t3; - } - } else { - REPEAT(stride, *op = ToLinear8[*wp&mask]; wp++; op++) - n -= stride; - while (n > 0) { - REPEAT(stride, - wp[stride] += *wp; *op = ToLinear8[*wp&mask]; wp++; op++) - n -= stride; - } - } - } -} - -/* - * State block for each open TIFF - * file using PixarLog compression/decompression. - */ -typedef struct { - TIFFPredictorState predict; - z_stream stream; - uint16 *tbuf; - uint16 stride; - int state; - int user_datafmt; - int quality; -#define PLSTATE_INIT 1 - - TIFFVSetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ - - float *ToLinearF; - uint16 *ToLinear16; - unsigned char *ToLinear8; - uint16 *FromLT2; - uint16 *From14; /* Really for 16-bit data, but we shift down 2 */ - uint16 *From8; - -} PixarLogState; - -static int -PixarLogMakeTables(PixarLogState *sp) -{ - -/* - * We make several tables here to convert between various external - * representations (float, 16-bit, and 8-bit) and the internal - * 11-bit companded representation. The 11-bit representation has two - * distinct regions. A linear bottom end up through .018316 in steps - * of about .000073, and a region of constant ratio up to about 25. - * These floating point numbers are stored in the main table ToLinearF. - * All other tables are derived from this one. The tables (and the - * ratios) are continuous at the internal seam. - */ - - int nlin, lt2size; - int i, j; - double b, c, linstep, v; - float *ToLinearF; - uint16 *ToLinear16; - unsigned char *ToLinear8; - uint16 *FromLT2; - uint16 *From14; /* Really for 16-bit data, but we shift down 2 */ - uint16 *From8; - - c = log(RATIO); - nlin = (int)(1./c); /* nlin must be an integer */ - c = 1./nlin; - b = exp(-c*ONE); /* multiplicative scale factor [b*exp(c*ONE) = 1] */ - linstep = b*c*exp(1.); - - LogK1 = (float)(1./c); /* if (v >= 2) token = k1*log(v*k2) */ - LogK2 = (float)(1./b); - lt2size = (int)(2./linstep) + 1; - FromLT2 = (uint16 *)_TIFFmalloc(lt2size*sizeof(uint16)); - From14 = (uint16 *)_TIFFmalloc(16384*sizeof(uint16)); - From8 = (uint16 *)_TIFFmalloc(256*sizeof(uint16)); - ToLinearF = (float *)_TIFFmalloc(TSIZEP1 * sizeof(float)); - ToLinear16 = (uint16 *)_TIFFmalloc(TSIZEP1 * sizeof(uint16)); - ToLinear8 = (unsigned char *)_TIFFmalloc(TSIZEP1 * sizeof(unsigned char)); - if (FromLT2 == NULL || From14 == NULL || From8 == NULL || - ToLinearF == NULL || ToLinear16 == NULL || ToLinear8 == NULL) { - if (FromLT2) _TIFFfree(FromLT2); - if (From14) _TIFFfree(From14); - if (From8) _TIFFfree(From8); - if (ToLinearF) _TIFFfree(ToLinearF); - if (ToLinear16) _TIFFfree(ToLinear16); - if (ToLinear8) _TIFFfree(ToLinear8); - sp->FromLT2 = NULL; - sp->From14 = NULL; - sp->From8 = NULL; - sp->ToLinearF = NULL; - sp->ToLinear16 = NULL; - sp->ToLinear8 = NULL; - return 0; - } - - j = 0; - - for (i = 0; i < nlin; i++) { - v = i * linstep; - ToLinearF[j++] = (float)v; - } - - for (i = nlin; i < TSIZE; i++) - ToLinearF[j++] = (float)(b*exp(c*i)); - - ToLinearF[2048] = ToLinearF[2047]; - - for (i = 0; i < TSIZEP1; i++) { - v = ToLinearF[i]*65535.0 + 0.5; - ToLinear16[i] = (v > 65535.0) ? 65535 : (uint16)v; - v = ToLinearF[i]*255.0 + 0.5; - ToLinear8[i] = (v > 255.0) ? 255 : (unsigned char)v; - } - - j = 0; - for (i = 0; i < lt2size; i++) { - if ((i*linstep)*(i*linstep) > ToLinearF[j]*ToLinearF[j+1]) - j++; - FromLT2[i] = j; - } - - /* - * Since we lose info anyway on 16-bit data, we set up a 14-bit - * table and shift 16-bit values down two bits on input. - * saves a little table space. - */ - j = 0; - for (i = 0; i < 16384; i++) { - while ((i/16383.)*(i/16383.) > ToLinearF[j]*ToLinearF[j+1]) - j++; - From14[i] = j; - } - - j = 0; - for (i = 0; i < 256; i++) { - while ((i/255.)*(i/255.) > ToLinearF[j]*ToLinearF[j+1]) - j++; - From8[i] = j; - } - - Fltsize = (float)(lt2size/2); - - sp->ToLinearF = ToLinearF; - sp->ToLinear16 = ToLinear16; - sp->ToLinear8 = ToLinear8; - sp->FromLT2 = FromLT2; - sp->From14 = From14; - sp->From8 = From8; - - return 1; -} - -#define DecoderState(tif) ((PixarLogState*) (tif)->tif_data) -#define EncoderState(tif) ((PixarLogState*) (tif)->tif_data) - -static int PixarLogEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s); -static int PixarLogDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s); - -#define PIXARLOGDATAFMT_UNKNOWN -1 - -static int -PixarLogGuessDataFmt(TIFFDirectory *td) -{ - int guess = PIXARLOGDATAFMT_UNKNOWN; - int format = td->td_sampleformat; - - /* If the user didn't tell us his datafmt, - * take our best guess from the bitspersample. - */ - switch (td->td_bitspersample) { - case 32: - if (format == SAMPLEFORMAT_IEEEFP) - guess = PIXARLOGDATAFMT_FLOAT; - break; - case 16: - if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) - guess = PIXARLOGDATAFMT_16BIT; - break; - case 12: - if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_INT) - guess = PIXARLOGDATAFMT_12BITPICIO; - break; - case 11: - if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) - guess = PIXARLOGDATAFMT_11BITLOG; - break; - case 8: - if (format == SAMPLEFORMAT_VOID || format == SAMPLEFORMAT_UINT) - guess = PIXARLOGDATAFMT_8BIT; - break; - } - - return guess; -} - -static tmsize_t -multiply_ms(tmsize_t m1, tmsize_t m2) -{ - tmsize_t bytes = m1 * m2; - - if (m1 && bytes / m1 != m2) - bytes = 0; - - return bytes; -} - -static tmsize_t -add_ms(tmsize_t m1, tmsize_t m2) -{ - tmsize_t bytes = m1 + m2; - - /* if either input is zero, assume overflow already occurred */ - if (m1 == 0 || m2 == 0) - bytes = 0; - else if (bytes <= m1 || bytes <= m2) - bytes = 0; - - return bytes; -} - -static int -PixarLogFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -static int -PixarLogSetupDecode(TIFF* tif) -{ - static const char module[] = "PixarLogSetupDecode"; - TIFFDirectory *td = &tif->tif_dir; - PixarLogState* sp = DecoderState(tif); - tmsize_t tbuf_size; - - assert(sp != NULL); - - /* Make sure no byte swapping happens on the data - * after decompression. */ - tif->tif_postdecode = _TIFFNoPostDecode; - - /* for some reason, we can't do this in TIFFInitPixarLog */ - - sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? - td->td_samplesperpixel : 1); - tbuf_size = multiply_ms(multiply_ms(multiply_ms(sp->stride, td->td_imagewidth), - td->td_rowsperstrip), sizeof(uint16)); - /* add one more stride in case input ends mid-stride */ - tbuf_size = add_ms(tbuf_size, sizeof(uint16) * sp->stride); - if (tbuf_size == 0) - return (0); /* TODO: this is an error return without error report through TIFFErrorExt */ - sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); - if (sp->tbuf == NULL) - return (0); - if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) - sp->user_datafmt = PixarLogGuessDataFmt(td); - if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) { - TIFFErrorExt(tif->tif_clientdata, module, - "PixarLog compression can't handle bits depth/data format combination (depth: %d)", - td->td_bitspersample); - return (0); - } - - if (inflateInit(&sp->stream) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "%s", sp->stream.msg); - return (0); - } else { - sp->state |= PLSTATE_INIT; - return (1); - } -} - -/* - * Setup state for decoding a strip. - */ -static int -PixarLogPreDecode(TIFF* tif, uint16 s) -{ - static const char module[] = "PixarLogPreDecode"; - PixarLogState* sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - sp->stream.next_in = tif->tif_rawdata; - assert(sizeof(sp->stream.avail_in)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_in = (uInt) tif->tif_rawcc; - if ((tmsize_t)sp->stream.avail_in != tif->tif_rawcc) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - return (inflateReset(&sp->stream) == Z_OK); -} - -static int -PixarLogDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "PixarLogDecode"; - TIFFDirectory *td = &tif->tif_dir; - PixarLogState* sp = DecoderState(tif); - tmsize_t i; - tmsize_t nsamples; - int llen; - uint16 *up; - - switch (sp->user_datafmt) { - case PIXARLOGDATAFMT_FLOAT: - nsamples = occ / sizeof(float); /* XXX float == 32 bits */ - break; - case PIXARLOGDATAFMT_16BIT: - case PIXARLOGDATAFMT_12BITPICIO: - case PIXARLOGDATAFMT_11BITLOG: - nsamples = occ / sizeof(uint16); /* XXX uint16 == 16 bits */ - break; - case PIXARLOGDATAFMT_8BIT: - case PIXARLOGDATAFMT_8BITABGR: - nsamples = occ; - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "%d bit input not supported in PixarLog", - td->td_bitspersample); - return 0; - } - - llen = sp->stride * td->td_imagewidth; - - (void) s; - assert(sp != NULL); - sp->stream.next_out = (unsigned char *) sp->tbuf; - assert(sizeof(sp->stream.avail_out)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_out = (uInt) (nsamples * sizeof(uint16)); - if (sp->stream.avail_out != nsamples * sizeof(uint16)) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - do { - int state = inflate(&sp->stream, Z_PARTIAL_FLUSH); - if (state == Z_STREAM_END) { - break; /* XXX */ - } - if (state == Z_DATA_ERROR) { - TIFFErrorExt(tif->tif_clientdata, module, - "Decoding error at scanline %lu, %s", - (unsigned long) tif->tif_row, sp->stream.msg); - if (inflateSync(&sp->stream) != Z_OK) - return (0); - continue; - } - if (state != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib error: %s", - sp->stream.msg); - return (0); - } - } while (sp->stream.avail_out > 0); - - /* hopefully, we got all the bytes we needed */ - if (sp->stream.avail_out != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %lu (short " TIFF_UINT64_FORMAT " bytes)", - (unsigned long) tif->tif_row, (TIFF_UINT64_T) sp->stream.avail_out); - return (0); - } - - up = sp->tbuf; - /* Swap bytes in the data if from a different endian machine. */ - if (tif->tif_flags & TIFF_SWAB) - TIFFSwabArrayOfShort(up, nsamples); - - /* - * if llen is not an exact multiple of nsamples, the decode operation - * may overflow the output buffer, so truncate it enough to prevent - * that but still salvage as much data as possible. - */ - if (nsamples % llen) { - TIFFWarningExt(tif->tif_clientdata, module, - "stride %lu is not a multiple of sample count, " - "%lu, data truncated.", (unsigned long) llen, (unsigned long) nsamples); - nsamples -= nsamples % llen; - } - - for (i = 0; i < nsamples; i += llen, up += llen) { - switch (sp->user_datafmt) { - case PIXARLOGDATAFMT_FLOAT: - horizontalAccumulateF(up, llen, sp->stride, - (float *)op, sp->ToLinearF); - op += llen * sizeof(float); - break; - case PIXARLOGDATAFMT_16BIT: - horizontalAccumulate16(up, llen, sp->stride, - (uint16 *)op, sp->ToLinear16); - op += llen * sizeof(uint16); - break; - case PIXARLOGDATAFMT_12BITPICIO: - horizontalAccumulate12(up, llen, sp->stride, - (int16 *)op, sp->ToLinearF); - op += llen * sizeof(int16); - break; - case PIXARLOGDATAFMT_11BITLOG: - horizontalAccumulate11(up, llen, sp->stride, - (uint16 *)op); - op += llen * sizeof(uint16); - break; - case PIXARLOGDATAFMT_8BIT: - horizontalAccumulate8(up, llen, sp->stride, - (unsigned char *)op, sp->ToLinear8); - op += llen * sizeof(unsigned char); - break; - case PIXARLOGDATAFMT_8BITABGR: - horizontalAccumulate8abgr(up, llen, sp->stride, - (unsigned char *)op, sp->ToLinear8); - op += llen * sizeof(unsigned char); - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "Unsupported bits/sample: %d", - td->td_bitspersample); - return (0); - } - } - - return (1); -} - -static int -PixarLogSetupEncode(TIFF* tif) -{ - static const char module[] = "PixarLogSetupEncode"; - TIFFDirectory *td = &tif->tif_dir; - PixarLogState* sp = EncoderState(tif); - tmsize_t tbuf_size; - - assert(sp != NULL); - - /* for some reason, we can't do this in TIFFInitPixarLog */ - - sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? - td->td_samplesperpixel : 1); - tbuf_size = multiply_ms(multiply_ms(multiply_ms(sp->stride, td->td_imagewidth), - td->td_rowsperstrip), sizeof(uint16)); - if (tbuf_size == 0) - return (0); /* TODO: this is an error return without error report through TIFFErrorExt */ - sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); - if (sp->tbuf == NULL) - return (0); - if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) - sp->user_datafmt = PixarLogGuessDataFmt(td); - if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) { - TIFFErrorExt(tif->tif_clientdata, module, "PixarLog compression can't handle %d bit linear encodings", td->td_bitspersample); - return (0); - } - - if (deflateInit(&sp->stream, sp->quality) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "%s", sp->stream.msg); - return (0); - } else { - sp->state |= PLSTATE_INIT; - return (1); - } -} - -/* - * Reset encoding state at the start of a strip. - */ -static int -PixarLogPreEncode(TIFF* tif, uint16 s) -{ - static const char module[] = "PixarLogPreEncode"; - PixarLogState *sp = EncoderState(tif); - - (void) s; - assert(sp != NULL); - sp->stream.next_out = tif->tif_rawdata; - assert(sizeof(sp->stream.avail_out)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_out = tif->tif_rawdatasize; - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - return (deflateReset(&sp->stream) == Z_OK); -} - -static void -horizontalDifferenceF(float *ip, int n, int stride, uint16 *wp, uint16 *FromLT2) -{ - int32 r1, g1, b1, a1, r2, g2, b2, a2, mask; - float fltsize = Fltsize; - -#define CLAMP(v) ( (v<(float)0.) ? 0 \ - : (v<(float)2.) ? FromLT2[(int)(v*fltsize)] \ - : (v>(float)24.2) ? 2047 \ - : LogK1*log(v*LogK2) + 0.5 ) - - mask = CODE_MASK; - if (n >= stride) { - if (stride == 3) { - r2 = wp[0] = (uint16) CLAMP(ip[0]); - g2 = wp[1] = (uint16) CLAMP(ip[1]); - b2 = wp[2] = (uint16) CLAMP(ip[2]); - n -= 3; - while (n > 0) { - n -= 3; - wp += 3; - ip += 3; - r1 = (int32) CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; - g1 = (int32) CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; - b1 = (int32) CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; - } - } else if (stride == 4) { - r2 = wp[0] = (uint16) CLAMP(ip[0]); - g2 = wp[1] = (uint16) CLAMP(ip[1]); - b2 = wp[2] = (uint16) CLAMP(ip[2]); - a2 = wp[3] = (uint16) CLAMP(ip[3]); - n -= 4; - while (n > 0) { - n -= 4; - wp += 4; - ip += 4; - r1 = (int32) CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; - g1 = (int32) CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; - b1 = (int32) CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; - a1 = (int32) CLAMP(ip[3]); wp[3] = (a1-a2) & mask; a2 = a1; - } - } else { - ip += n - 1; /* point to last one */ - wp += n - 1; /* point to last one */ - n -= stride; - while (n > 0) { - REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); - wp[stride] -= wp[0]; - wp[stride] &= mask; - wp--; ip--) - n -= stride; - } - REPEAT(stride, wp[0] = (uint16) CLAMP(ip[0]); wp--; ip--) - } - } -} - -static void -horizontalDifference16(unsigned short *ip, int n, int stride, - unsigned short *wp, uint16 *From14) -{ - register int r1, g1, b1, a1, r2, g2, b2, a2, mask; - -/* assumption is unsigned pixel values */ -#undef CLAMP -#define CLAMP(v) From14[(v) >> 2] - - mask = CODE_MASK; - if (n >= stride) { - if (stride == 3) { - r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); - b2 = wp[2] = CLAMP(ip[2]); - n -= 3; - while (n > 0) { - n -= 3; - wp += 3; - ip += 3; - r1 = CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; - g1 = CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; - b1 = CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; - } - } else if (stride == 4) { - r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); - b2 = wp[2] = CLAMP(ip[2]); a2 = wp[3] = CLAMP(ip[3]); - n -= 4; - while (n > 0) { - n -= 4; - wp += 4; - ip += 4; - r1 = CLAMP(ip[0]); wp[0] = (r1-r2) & mask; r2 = r1; - g1 = CLAMP(ip[1]); wp[1] = (g1-g2) & mask; g2 = g1; - b1 = CLAMP(ip[2]); wp[2] = (b1-b2) & mask; b2 = b1; - a1 = CLAMP(ip[3]); wp[3] = (a1-a2) & mask; a2 = a1; - } - } else { - ip += n - 1; /* point to last one */ - wp += n - 1; /* point to last one */ - n -= stride; - while (n > 0) { - REPEAT(stride, wp[0] = CLAMP(ip[0]); - wp[stride] -= wp[0]; - wp[stride] &= mask; - wp--; ip--) - n -= stride; - } - REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--) - } - } -} - - -static void -horizontalDifference8(unsigned char *ip, int n, int stride, - unsigned short *wp, uint16 *From8) -{ - register int r1, g1, b1, a1, r2, g2, b2, a2, mask; - -#undef CLAMP -#define CLAMP(v) (From8[(v)]) - - mask = CODE_MASK; - if (n >= stride) { - if (stride == 3) { - r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); - b2 = wp[2] = CLAMP(ip[2]); - n -= 3; - while (n > 0) { - n -= 3; - r1 = CLAMP(ip[3]); wp[3] = (r1-r2) & mask; r2 = r1; - g1 = CLAMP(ip[4]); wp[4] = (g1-g2) & mask; g2 = g1; - b1 = CLAMP(ip[5]); wp[5] = (b1-b2) & mask; b2 = b1; - wp += 3; - ip += 3; - } - } else if (stride == 4) { - r2 = wp[0] = CLAMP(ip[0]); g2 = wp[1] = CLAMP(ip[1]); - b2 = wp[2] = CLAMP(ip[2]); a2 = wp[3] = CLAMP(ip[3]); - n -= 4; - while (n > 0) { - n -= 4; - r1 = CLAMP(ip[4]); wp[4] = (r1-r2) & mask; r2 = r1; - g1 = CLAMP(ip[5]); wp[5] = (g1-g2) & mask; g2 = g1; - b1 = CLAMP(ip[6]); wp[6] = (b1-b2) & mask; b2 = b1; - a1 = CLAMP(ip[7]); wp[7] = (a1-a2) & mask; a2 = a1; - wp += 4; - ip += 4; - } - } else { - wp += n + stride - 1; /* point to last one */ - ip += n + stride - 1; /* point to last one */ - n -= stride; - while (n > 0) { - REPEAT(stride, wp[0] = CLAMP(ip[0]); - wp[stride] -= wp[0]; - wp[stride] &= mask; - wp--; ip--) - n -= stride; - } - REPEAT(stride, wp[0] = CLAMP(ip[0]); wp--; ip--) - } - } -} - -/* - * Encode a chunk of pixels. - */ -static int -PixarLogEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - static const char module[] = "PixarLogEncode"; - TIFFDirectory *td = &tif->tif_dir; - PixarLogState *sp = EncoderState(tif); - tmsize_t i; - tmsize_t n; - int llen; - unsigned short * up; - - (void) s; - - switch (sp->user_datafmt) { - case PIXARLOGDATAFMT_FLOAT: - n = cc / sizeof(float); /* XXX float == 32 bits */ - break; - case PIXARLOGDATAFMT_16BIT: - case PIXARLOGDATAFMT_12BITPICIO: - case PIXARLOGDATAFMT_11BITLOG: - n = cc / sizeof(uint16); /* XXX uint16 == 16 bits */ - break; - case PIXARLOGDATAFMT_8BIT: - case PIXARLOGDATAFMT_8BITABGR: - n = cc; - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "%d bit input not supported in PixarLog", - td->td_bitspersample); - return 0; - } - - llen = sp->stride * td->td_imagewidth; - - for (i = 0, up = sp->tbuf; i < n; i += llen, up += llen) { - switch (sp->user_datafmt) { - case PIXARLOGDATAFMT_FLOAT: - horizontalDifferenceF((float *)bp, llen, - sp->stride, up, sp->FromLT2); - bp += llen * sizeof(float); - break; - case PIXARLOGDATAFMT_16BIT: - horizontalDifference16((uint16 *)bp, llen, - sp->stride, up, sp->From14); - bp += llen * sizeof(uint16); - break; - case PIXARLOGDATAFMT_8BIT: - horizontalDifference8((unsigned char *)bp, llen, - sp->stride, up, sp->From8); - bp += llen * sizeof(unsigned char); - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "%d bit input not supported in PixarLog", - td->td_bitspersample); - return 0; - } - } - - sp->stream.next_in = (unsigned char *) sp->tbuf; - assert(sizeof(sp->stream.avail_in)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_in = (uInt) (n * sizeof(uint16)); - if ((sp->stream.avail_in / sizeof(uint16)) != (uInt) n) - { - TIFFErrorExt(tif->tif_clientdata, module, - "ZLib cannot deal with buffers this size"); - return (0); - } - - do { - if (deflate(&sp->stream, Z_NO_FLUSH) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "Encoder error: %s", - sp->stream.msg); - return (0); - } - if (sp->stream.avail_out == 0) { - tif->tif_rawcc = tif->tif_rawdatasize; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (uInt) tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in PixarLogPreEncode */ - } - } while (sp->stream.avail_in > 0); - return (1); -} - -/* - * Finish off an encoded strip by flushing the last - * string and tacking on an End Of Information code. - */ - -static int -PixarLogPostEncode(TIFF* tif) -{ - static const char module[] = "PixarLogPostEncode"; - PixarLogState *sp = EncoderState(tif); - int state; - - sp->stream.avail_in = 0; - - do { - state = deflate(&sp->stream, Z_FINISH); - switch (state) { - case Z_STREAM_END: - case Z_OK: - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) { - tif->tif_rawcc = - tif->tif_rawdatasize - sp->stream.avail_out; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (uInt) tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in PixarLogPreEncode */ - } - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, "ZLib error: %s", - sp->stream.msg); - return (0); - } - } while (state != Z_STREAM_END); - return (1); -} - -static void -PixarLogClose(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - - /* In a really sneaky (and really incorrect, and untruthfull, and - * troublesome, and error-prone) maneuver that completely goes against - * the spirit of TIFF, and breaks TIFF, on close, we covertly - * modify both bitspersample and sampleformat in the directory to - * indicate 8-bit linear. This way, the decode "just works" even for - * readers that don't know about PixarLog, or how to set - * the PIXARLOGDATFMT pseudo-tag. - */ - td->td_bitspersample = 8; - td->td_sampleformat = SAMPLEFORMAT_UINT; -} - -static void -PixarLogCleanup(TIFF* tif) -{ - PixarLogState* sp = (PixarLogState*) tif->tif_data; - - assert(sp != 0); - - (void)TIFFPredictorCleanup(tif); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - - if (sp->FromLT2) _TIFFfree(sp->FromLT2); - if (sp->From14) _TIFFfree(sp->From14); - if (sp->From8) _TIFFfree(sp->From8); - if (sp->ToLinearF) _TIFFfree(sp->ToLinearF); - if (sp->ToLinear16) _TIFFfree(sp->ToLinear16); - if (sp->ToLinear8) _TIFFfree(sp->ToLinear8); - if (sp->state&PLSTATE_INIT) { - if (tif->tif_mode == O_RDONLY) - inflateEnd(&sp->stream); - else - deflateEnd(&sp->stream); - } - if (sp->tbuf) - _TIFFfree(sp->tbuf); - _TIFFfree(sp); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -static int -PixarLogVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[] = "PixarLogVSetField"; - PixarLogState *sp = (PixarLogState *)tif->tif_data; - int result; - - switch (tag) { - case TIFFTAG_PIXARLOGQUALITY: - sp->quality = (int) va_arg(ap, int); - if (tif->tif_mode != O_RDONLY && (sp->state&PLSTATE_INIT)) { - if (deflateParams(&sp->stream, - sp->quality, Z_DEFAULT_STRATEGY) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib error: %s", - sp->stream.msg); - return (0); - } - } - return (1); - case TIFFTAG_PIXARLOGDATAFMT: - sp->user_datafmt = (int) va_arg(ap, int); - /* Tweak the TIFF header so that the rest of libtiff knows what - * size of data will be passed between app and library, and - * assume that the app knows what it is doing and is not - * confused by these header manipulations... - */ - switch (sp->user_datafmt) { - case PIXARLOGDATAFMT_8BIT: - case PIXARLOGDATAFMT_8BITABGR: - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); - break; - case PIXARLOGDATAFMT_11BITLOG: - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); - break; - case PIXARLOGDATAFMT_12BITPICIO: - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_INT); - break; - case PIXARLOGDATAFMT_16BIT: - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 16); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); - break; - case PIXARLOGDATAFMT_FLOAT: - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 32); - TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP); - break; - } - /* - * Must recalculate sizes should bits/sample change. - */ - tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tmsize_t)(-1); - tif->tif_scanlinesize = TIFFScanlineSize(tif); - result = 1; /* NB: pseudo tag */ - break; - default: - result = (*sp->vsetparent)(tif, tag, ap); - } - return (result); -} - -static int -PixarLogVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - PixarLogState *sp = (PixarLogState *)tif->tif_data; - - switch (tag) { - case TIFFTAG_PIXARLOGQUALITY: - *va_arg(ap, int*) = sp->quality; - break; - case TIFFTAG_PIXARLOGDATAFMT: - *va_arg(ap, int*) = sp->user_datafmt; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return (1); -} - -static const TIFFField pixarlogFields[] = { - {TIFFTAG_PIXARLOGDATAFMT, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "", NULL}, - {TIFFTAG_PIXARLOGQUALITY, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, FALSE, FALSE, "", NULL} -}; - -int -TIFFInitPixarLog(TIFF* tif, int scheme) -{ - static const char module[] = "TIFFInitPixarLog"; - - PixarLogState* sp; - - assert(scheme == COMPRESSION_PIXARLOG); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, pixarlogFields, - TIFFArrayCount(pixarlogFields))) { - TIFFErrorExt(tif->tif_clientdata, module, - "Merging PixarLog codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof (PixarLogState)); - if (tif->tif_data == NULL) - goto bad; - sp = (PixarLogState*) tif->tif_data; - _TIFFmemset(sp, 0, sizeof (*sp)); - sp->stream.data_type = Z_BINARY; - sp->user_datafmt = PIXARLOGDATAFMT_UNKNOWN; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = PixarLogFixupTags; - tif->tif_setupdecode = PixarLogSetupDecode; - tif->tif_predecode = PixarLogPreDecode; - tif->tif_decoderow = PixarLogDecode; - tif->tif_decodestrip = PixarLogDecode; - tif->tif_decodetile = PixarLogDecode; - tif->tif_setupencode = PixarLogSetupEncode; - tif->tif_preencode = PixarLogPreEncode; - tif->tif_postencode = PixarLogPostEncode; - tif->tif_encoderow = PixarLogEncode; - tif->tif_encodestrip = PixarLogEncode; - tif->tif_encodetile = PixarLogEncode; - tif->tif_close = PixarLogClose; - tif->tif_cleanup = PixarLogCleanup; - - /* Override SetField so we can handle our private pseudo-tag */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = PixarLogVGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = PixarLogVSetField; /* hook for codec tags */ - - /* Default values for codec-specific fields */ - sp->quality = Z_DEFAULT_COMPRESSION; /* default comp. level */ - sp->state = 0; - - /* we don't wish to use the predictor, - * the default is none, which predictor value 1 - */ - (void) TIFFPredictorInit(tif); - - /* - * build the companding tables - */ - PixarLogMakeTables(sp); - - return (1); -bad: - TIFFErrorExt(tif->tif_clientdata, module, - "No space for PixarLog state block"); - return (0); -} -#endif /* PIXARLOG_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_predict.c b/tiff/libtiff/tif_predict.c deleted file mode 100755 index f93c664..0000000 --- a/tiff/libtiff/tif_predict.c +++ /dev/null @@ -1,764 +0,0 @@ -/* $Id: tif_predict.c,v 1.32 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Predictor Tag Support (used by multiple codecs). - */ -#include "tiffiop.h" -#include "tif_predict.h" - -#define PredictorState(tif) ((TIFFPredictorState*) (tif)->tif_data) - -static void horAcc8(TIFF* tif, uint8* cp0, tmsize_t cc); -static void horAcc16(TIFF* tif, uint8* cp0, tmsize_t cc); -static void horAcc32(TIFF* tif, uint8* cp0, tmsize_t cc); -static void swabHorAcc16(TIFF* tif, uint8* cp0, tmsize_t cc); -static void swabHorAcc32(TIFF* tif, uint8* cp0, tmsize_t cc); -static void horDiff8(TIFF* tif, uint8* cp0, tmsize_t cc); -static void horDiff16(TIFF* tif, uint8* cp0, tmsize_t cc); -static void horDiff32(TIFF* tif, uint8* cp0, tmsize_t cc); -static void fpAcc(TIFF* tif, uint8* cp0, tmsize_t cc); -static void fpDiff(TIFF* tif, uint8* cp0, tmsize_t cc); -static int PredictorDecodeRow(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s); -static int PredictorDecodeTile(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s); -static int PredictorEncodeRow(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s); -static int PredictorEncodeTile(TIFF* tif, uint8* bp0, tmsize_t cc0, uint16 s); - -static int -PredictorSetup(TIFF* tif) -{ - static const char module[] = "PredictorSetup"; - - TIFFPredictorState* sp = PredictorState(tif); - TIFFDirectory* td = &tif->tif_dir; - - switch (sp->predictor) /* no differencing */ - { - case PREDICTOR_NONE: - return 1; - case PREDICTOR_HORIZONTAL: - if (td->td_bitspersample != 8 - && td->td_bitspersample != 16 - && td->td_bitspersample != 32) { - TIFFErrorExt(tif->tif_clientdata, module, - "Horizontal differencing \"Predictor\" not supported with %d-bit samples", - td->td_bitspersample); - return 0; - } - break; - case PREDICTOR_FLOATINGPOINT: - if (td->td_sampleformat != SAMPLEFORMAT_IEEEFP) { - TIFFErrorExt(tif->tif_clientdata, module, - "Floating point \"Predictor\" not supported with %d data format", - td->td_sampleformat); - return 0; - } - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "\"Predictor\" value %d not supported", - sp->predictor); - return 0; - } - sp->stride = (td->td_planarconfig == PLANARCONFIG_CONTIG ? - td->td_samplesperpixel : 1); - /* - * Calculate the scanline/tile-width size in bytes. - */ - if (isTiled(tif)) - sp->rowsize = TIFFTileRowSize(tif); - else - sp->rowsize = TIFFScanlineSize(tif); - if (sp->rowsize == 0) - return 0; - - return 1; -} - -static int -PredictorSetupDecode(TIFF* tif) -{ - TIFFPredictorState* sp = PredictorState(tif); - TIFFDirectory* td = &tif->tif_dir; - - if (!(*sp->setupdecode)(tif) || !PredictorSetup(tif)) - return 0; - - if (sp->predictor == 2) { - switch (td->td_bitspersample) { - case 8: sp->decodepfunc = horAcc8; break; - case 16: sp->decodepfunc = horAcc16; break; - case 32: sp->decodepfunc = horAcc32; break; - } - /* - * Override default decoding method with one that does the - * predictor stuff. - */ - if( tif->tif_decoderow != PredictorDecodeRow ) - { - sp->decoderow = tif->tif_decoderow; - tif->tif_decoderow = PredictorDecodeRow; - sp->decodestrip = tif->tif_decodestrip; - tif->tif_decodestrip = PredictorDecodeTile; - sp->decodetile = tif->tif_decodetile; - tif->tif_decodetile = PredictorDecodeTile; - } - - /* - * If the data is horizontally differenced 16-bit data that - * requires byte-swapping, then it must be byte swapped before - * the accumulation step. We do this with a special-purpose - * routine and override the normal post decoding logic that - * the library setup when the directory was read. - */ - if (tif->tif_flags & TIFF_SWAB) { - if (sp->decodepfunc == horAcc16) { - sp->decodepfunc = swabHorAcc16; - tif->tif_postdecode = _TIFFNoPostDecode; - } else if (sp->decodepfunc == horAcc32) { - sp->decodepfunc = swabHorAcc32; - tif->tif_postdecode = _TIFFNoPostDecode; - } - } - } - - else if (sp->predictor == 3) { - sp->decodepfunc = fpAcc; - /* - * Override default decoding method with one that does the - * predictor stuff. - */ - if( tif->tif_decoderow != PredictorDecodeRow ) - { - sp->decoderow = tif->tif_decoderow; - tif->tif_decoderow = PredictorDecodeRow; - sp->decodestrip = tif->tif_decodestrip; - tif->tif_decodestrip = PredictorDecodeTile; - sp->decodetile = tif->tif_decodetile; - tif->tif_decodetile = PredictorDecodeTile; - } - /* - * The data should not be swapped outside of the floating - * point predictor, the accumulation routine should return - * byres in the native order. - */ - if (tif->tif_flags & TIFF_SWAB) { - tif->tif_postdecode = _TIFFNoPostDecode; - } - /* - * Allocate buffer to keep the decoded bytes before - * rearranging in the ight order - */ - } - - return 1; -} - -static int -PredictorSetupEncode(TIFF* tif) -{ - TIFFPredictorState* sp = PredictorState(tif); - TIFFDirectory* td = &tif->tif_dir; - - if (!(*sp->setupencode)(tif) || !PredictorSetup(tif)) - return 0; - - if (sp->predictor == 2) { - switch (td->td_bitspersample) { - case 8: sp->encodepfunc = horDiff8; break; - case 16: sp->encodepfunc = horDiff16; break; - case 32: sp->encodepfunc = horDiff32; break; - } - /* - * Override default encoding method with one that does the - * predictor stuff. - */ - if( tif->tif_encoderow != PredictorEncodeRow ) - { - sp->encoderow = tif->tif_encoderow; - tif->tif_encoderow = PredictorEncodeRow; - sp->encodestrip = tif->tif_encodestrip; - tif->tif_encodestrip = PredictorEncodeTile; - sp->encodetile = tif->tif_encodetile; - tif->tif_encodetile = PredictorEncodeTile; - } - } - - else if (sp->predictor == 3) { - sp->encodepfunc = fpDiff; - /* - * Override default encoding method with one that does the - * predictor stuff. - */ - if( tif->tif_encoderow != PredictorEncodeRow ) - { - sp->encoderow = tif->tif_encoderow; - tif->tif_encoderow = PredictorEncodeRow; - sp->encodestrip = tif->tif_encodestrip; - tif->tif_encodestrip = PredictorEncodeTile; - sp->encodetile = tif->tif_encodetile; - tif->tif_encodetile = PredictorEncodeTile; - } - } - - return 1; -} - -#define REPEAT4(n, op) \ - switch (n) { \ - default: { tmsize_t i; for (i = n-4; i > 0; i--) { op; } } \ - case 4: op; \ - case 3: op; \ - case 2: op; \ - case 1: op; \ - case 0: ; \ - } - -static void -horAcc8(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - - char* cp = (char*) cp0; - assert((cc%stride)==0); - if (cc > stride) { - /* - * Pipeline the most common cases. - */ - if (stride == 3) { - unsigned int cr = cp[0]; - unsigned int cg = cp[1]; - unsigned int cb = cp[2]; - cc -= 3; - cp += 3; - while (cc>0) { - cp[0] = (char) (cr += cp[0]); - cp[1] = (char) (cg += cp[1]); - cp[2] = (char) (cb += cp[2]); - cc -= 3; - cp += 3; - } - } else if (stride == 4) { - unsigned int cr = cp[0]; - unsigned int cg = cp[1]; - unsigned int cb = cp[2]; - unsigned int ca = cp[3]; - cc -= 4; - cp += 4; - while (cc>0) { - cp[0] = (char) (cr += cp[0]); - cp[1] = (char) (cg += cp[1]); - cp[2] = (char) (cb += cp[2]); - cp[3] = (char) (ca += cp[3]); - cc -= 4; - cp += 4; - } - } else { - cc -= stride; - do { - REPEAT4(stride, cp[stride] = - (char) (cp[stride] + *cp); cp++) - cc -= stride; - } while (cc>0); - } - } -} - -static void -swabHorAcc16(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint16* wp = (uint16*) cp0; - tmsize_t wc = cc / 2; - - assert((cc%(2*stride))==0); - - if (wc > stride) { - TIFFSwabArrayOfShort(wp, wc); - wc -= stride; - do { - REPEAT4(stride, wp[stride] += wp[0]; wp++) - wc -= stride; - } while (wc > 0); - } -} - -static void -horAcc16(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint16* wp = (uint16*) cp0; - tmsize_t wc = cc / 2; - - assert((cc%(2*stride))==0); - - if (wc > stride) { - wc -= stride; - do { - REPEAT4(stride, wp[stride] += wp[0]; wp++) - wc -= stride; - } while (wc > 0); - } -} - -static void -swabHorAcc32(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint32* wp = (uint32*) cp0; - tmsize_t wc = cc / 4; - - assert((cc%(4*stride))==0); - - if (wc > stride) { - TIFFSwabArrayOfLong(wp, wc); - wc -= stride; - do { - REPEAT4(stride, wp[stride] += wp[0]; wp++) - wc -= stride; - } while (wc > 0); - } -} - -static void -horAcc32(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint32* wp = (uint32*) cp0; - tmsize_t wc = cc / 4; - - assert((cc%(4*stride))==0); - - if (wc > stride) { - wc -= stride; - do { - REPEAT4(stride, wp[stride] += wp[0]; wp++) - wc -= stride; - } while (wc > 0); - } -} - -/* - * Floating point predictor accumulation routine. - */ -static void -fpAcc(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint32 bps = tif->tif_dir.td_bitspersample / 8; - tmsize_t wc = cc / bps; - tmsize_t count = cc; - uint8 *cp = (uint8 *) cp0; - uint8 *tmp = (uint8 *)_TIFFmalloc(cc); - - assert((cc%(bps*stride))==0); - - if (!tmp) - return; - - while (count > stride) { - REPEAT4(stride, cp[stride] += cp[0]; cp++) - count -= stride; - } - - _TIFFmemcpy(tmp, cp0, cc); - cp = (uint8 *) cp0; - for (count = 0; count < wc; count++) { - uint32 byte; - for (byte = 0; byte < bps; byte++) { - #if WORDS_BIGENDIAN - cp[bps * count + byte] = tmp[byte * wc + count]; - #else - cp[bps * count + byte] = - tmp[(bps - byte - 1) * wc + count]; - #endif - } - } - _TIFFfree(tmp); -} - -/* - * Decode a scanline and apply the predictor routine. - */ -static int -PredictorDecodeRow(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s) -{ - TIFFPredictorState *sp = PredictorState(tif); - - assert(sp != NULL); - assert(sp->decoderow != NULL); - assert(sp->decodepfunc != NULL); - - if ((*sp->decoderow)(tif, op0, occ0, s)) { - (*sp->decodepfunc)(tif, op0, occ0); - return 1; - } else - return 0; -} - -/* - * Decode a tile/strip and apply the predictor routine. - * Note that horizontal differencing must be done on a - * row-by-row basis. The width of a "row" has already - * been calculated at pre-decode time according to the - * strip/tile dimensions. - */ -static int -PredictorDecodeTile(TIFF* tif, uint8* op0, tmsize_t occ0, uint16 s) -{ - TIFFPredictorState *sp = PredictorState(tif); - - assert(sp != NULL); - assert(sp->decodetile != NULL); - - if ((*sp->decodetile)(tif, op0, occ0, s)) { - tmsize_t rowsize = sp->rowsize; - assert(rowsize > 0); - assert((occ0%rowsize)==0); - assert(sp->decodepfunc != NULL); - while (occ0 > 0) { - (*sp->decodepfunc)(tif, op0, rowsize); - occ0 -= rowsize; - op0 += rowsize; - } - return 1; - } else - return 0; -} - -static void -horDiff8(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - TIFFPredictorState* sp = PredictorState(tif); - tmsize_t stride = sp->stride; - char* cp = (char*) cp0; - - assert((cc%stride)==0); - - if (cc > stride) { - cc -= stride; - /* - * Pipeline the most common cases. - */ - if (stride == 3) { - int r1, g1, b1; - int r2 = cp[0]; - int g2 = cp[1]; - int b2 = cp[2]; - do { - r1 = cp[3]; cp[3] = r1-r2; r2 = r1; - g1 = cp[4]; cp[4] = g1-g2; g2 = g1; - b1 = cp[5]; cp[5] = b1-b2; b2 = b1; - cp += 3; - } while ((cc -= 3) > 0); - } else if (stride == 4) { - int r1, g1, b1, a1; - int r2 = cp[0]; - int g2 = cp[1]; - int b2 = cp[2]; - int a2 = cp[3]; - do { - r1 = cp[4]; cp[4] = r1-r2; r2 = r1; - g1 = cp[5]; cp[5] = g1-g2; g2 = g1; - b1 = cp[6]; cp[6] = b1-b2; b2 = b1; - a1 = cp[7]; cp[7] = a1-a2; a2 = a1; - cp += 4; - } while ((cc -= 4) > 0); - } else { - cp += cc - 1; - do { - REPEAT4(stride, cp[stride] -= cp[0]; cp--) - } while ((cc -= stride) > 0); - } - } -} - -static void -horDiff16(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - TIFFPredictorState* sp = PredictorState(tif); - tmsize_t stride = sp->stride; - int16 *wp = (int16*) cp0; - tmsize_t wc = cc/2; - - assert((cc%(2*stride))==0); - - if (wc > stride) { - wc -= stride; - wp += wc - 1; - do { - REPEAT4(stride, wp[stride] -= wp[0]; wp--) - wc -= stride; - } while (wc > 0); - } -} - -static void -horDiff32(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - TIFFPredictorState* sp = PredictorState(tif); - tmsize_t stride = sp->stride; - int32 *wp = (int32*) cp0; - tmsize_t wc = cc/4; - - assert((cc%(4*stride))==0); - - if (wc > stride) { - wc -= stride; - wp += wc - 1; - do { - REPEAT4(stride, wp[stride] -= wp[0]; wp--) - wc -= stride; - } while (wc > 0); - } -} - -/* - * Floating point predictor differencing routine. - */ -static void -fpDiff(TIFF* tif, uint8* cp0, tmsize_t cc) -{ - tmsize_t stride = PredictorState(tif)->stride; - uint32 bps = tif->tif_dir.td_bitspersample / 8; - tmsize_t wc = cc / bps; - tmsize_t count; - uint8 *cp = (uint8 *) cp0; - uint8 *tmp = (uint8 *)_TIFFmalloc(cc); - - assert((cc%(bps*stride))==0); - - if (!tmp) - return; - - _TIFFmemcpy(tmp, cp0, cc); - for (count = 0; count < wc; count++) { - uint32 byte; - for (byte = 0; byte < bps; byte++) { - #if WORDS_BIGENDIAN - cp[byte * wc + count] = tmp[bps * count + byte]; - #else - cp[(bps - byte - 1) * wc + count] = - tmp[bps * count + byte]; - #endif - } - } - _TIFFfree(tmp); - - cp = (uint8 *) cp0; - cp += cc - stride - 1; - for (count = cc; count > stride; count -= stride) - REPEAT4(stride, cp[stride] -= cp[0]; cp--) -} - -static int -PredictorEncodeRow(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - TIFFPredictorState *sp = PredictorState(tif); - - assert(sp != NULL); - assert(sp->encodepfunc != NULL); - assert(sp->encoderow != NULL); - - /* XXX horizontal differencing alters user's data XXX */ - (*sp->encodepfunc)(tif, bp, cc); - return (*sp->encoderow)(tif, bp, cc, s); -} - -static int -PredictorEncodeTile(TIFF* tif, uint8* bp0, tmsize_t cc0, uint16 s) -{ - static const char module[] = "PredictorEncodeTile"; - TIFFPredictorState *sp = PredictorState(tif); - uint8 *working_copy; - tmsize_t cc = cc0, rowsize; - unsigned char* bp; - int result_code; - - assert(sp != NULL); - assert(sp->encodepfunc != NULL); - assert(sp->encodetile != NULL); - - /* - * Do predictor manipulation in a working buffer to avoid altering - * the callers buffer. http://trac.osgeo.org/gdal/ticket/1965 - */ - working_copy = (uint8*) _TIFFmalloc(cc0); - if( working_copy == NULL ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Out of memory allocating " TIFF_SSIZE_FORMAT " byte temp buffer.", - cc0 ); - return 0; - } - memcpy( working_copy, bp0, cc0 ); - bp = working_copy; - - rowsize = sp->rowsize; - assert(rowsize > 0); - assert((cc0%rowsize)==0); - while (cc > 0) { - (*sp->encodepfunc)(tif, bp, rowsize); - cc -= rowsize; - bp += rowsize; - } - result_code = (*sp->encodetile)(tif, working_copy, cc0, s); - - _TIFFfree( working_copy ); - - return result_code; -} - -#define FIELD_PREDICTOR (FIELD_CODEC+0) /* XXX */ - -static const TIFFField predictFields[] = { - { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UINT16, FIELD_PREDICTOR, FALSE, FALSE, "Predictor", NULL }, -}; - -static int -PredictorVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - TIFFPredictorState *sp = PredictorState(tif); - - assert(sp != NULL); - assert(sp->vsetparent != NULL); - - switch (tag) { - case TIFFTAG_PREDICTOR: - sp->predictor = (uint16) va_arg(ap, uint16_vap); - TIFFSetFieldBit(tif, FIELD_PREDICTOR); - break; - default: - return (*sp->vsetparent)(tif, tag, ap); - } - tif->tif_flags |= TIFF_DIRTYDIRECT; - return 1; -} - -static int -PredictorVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - TIFFPredictorState *sp = PredictorState(tif); - - assert(sp != NULL); - assert(sp->vgetparent != NULL); - - switch (tag) { - case TIFFTAG_PREDICTOR: - *va_arg(ap, uint16*) = sp->predictor; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return 1; -} - -static void -PredictorPrintDir(TIFF* tif, FILE* fd, long flags) -{ - TIFFPredictorState* sp = PredictorState(tif); - - (void) flags; - if (TIFFFieldSet(tif,FIELD_PREDICTOR)) { - fprintf(fd, " Predictor: "); - switch (sp->predictor) { - case 1: fprintf(fd, "none "); break; - case 2: fprintf(fd, "horizontal differencing "); break; - case 3: fprintf(fd, "floating point predictor "); break; - } - fprintf(fd, "%u (0x%x)\n", sp->predictor, sp->predictor); - } - if (sp->printdir) - (*sp->printdir)(tif, fd, flags); -} - -int -TIFFPredictorInit(TIFF* tif) -{ - TIFFPredictorState* sp = PredictorState(tif); - - assert(sp != 0); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, predictFields, - TIFFArrayCount(predictFields))) { - TIFFErrorExt(tif->tif_clientdata, "TIFFPredictorInit", - "Merging Predictor codec-specific tags failed"); - return 0; - } - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = - PredictorVGetField;/* hook for predictor tag */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = - PredictorVSetField;/* hook for predictor tag */ - sp->printdir = tif->tif_tagmethods.printdir; - tif->tif_tagmethods.printdir = - PredictorPrintDir; /* hook for predictor tag */ - - sp->setupdecode = tif->tif_setupdecode; - tif->tif_setupdecode = PredictorSetupDecode; - sp->setupencode = tif->tif_setupencode; - tif->tif_setupencode = PredictorSetupEncode; - - sp->predictor = 1; /* default value */ - sp->encodepfunc = NULL; /* no predictor routine */ - sp->decodepfunc = NULL; /* no predictor routine */ - return 1; -} - -int -TIFFPredictorCleanup(TIFF* tif) -{ - TIFFPredictorState* sp = PredictorState(tif); - - assert(sp != 0); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - tif->tif_tagmethods.printdir = sp->printdir; - tif->tif_setupdecode = sp->setupdecode; - tif->tif_setupencode = sp->setupencode; - - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_predict.h b/tiff/libtiff/tif_predict.h deleted file mode 100755 index dc7144c..0000000 --- a/tiff/libtiff/tif_predict.h +++ /dev/null @@ -1,77 +0,0 @@ -/* $Id: tif_predict.h,v 1.8 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1995-1997 Sam Leffler - * Copyright (c) 1995-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFPREDICT_ -#define _TIFFPREDICT_ -/* - * ``Library-private'' Support for the Predictor Tag - */ - -/* - * Codecs that want to support the Predictor tag must place - * this structure first in their private state block so that - * the predictor code can cast tif_data to find its state. - */ -typedef struct { - int predictor; /* predictor tag value */ - tmsize_t stride; /* sample stride over data */ - tmsize_t rowsize; /* tile/strip row size */ - - TIFFCodeMethod encoderow; /* parent codec encode/decode row */ - TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ - TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ - TIFFPostMethod encodepfunc; /* horizontal differencer */ - - TIFFCodeMethod decoderow; /* parent codec encode/decode row */ - TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ - TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ - TIFFPostMethod decodepfunc; /* horizontal accumulator */ - - TIFFVGetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ - TIFFPrintMethod printdir; /* super-class method */ - TIFFBoolMethod setupdecode; /* super-class method */ - TIFFBoolMethod setupencode; /* super-class method */ -} TIFFPredictorState; - -#if defined(__cplusplus) -extern "C" { -#endif -extern int TIFFPredictorInit(TIFF*); -extern int TIFFPredictorCleanup(TIFF*); -#if defined(__cplusplus) -} -#endif -#endif /* _TIFFPREDICT_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_print.c b/tiff/libtiff/tif_print.c deleted file mode 100755 index 9e27ae2..0000000 --- a/tiff/libtiff/tif_print.c +++ /dev/null @@ -1,716 +0,0 @@ -/* $Id: tif_print.c,v 1.61 2012-12-12 22:50:18 tgl Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Directory Printing Support - */ -#include "tiffiop.h" -#include - -#include - -static void -_TIFFprintAsciiBounded(FILE* fd, const char* cp, int max_chars); - -static const char *photoNames[] = { - "min-is-white", /* PHOTOMETRIC_MINISWHITE */ - "min-is-black", /* PHOTOMETRIC_MINISBLACK */ - "RGB color", /* PHOTOMETRIC_RGB */ - "palette color (RGB from colormap)", /* PHOTOMETRIC_PALETTE */ - "transparency mask", /* PHOTOMETRIC_MASK */ - "separated", /* PHOTOMETRIC_SEPARATED */ - "YCbCr", /* PHOTOMETRIC_YCBCR */ - "7 (0x7)", - "CIE L*a*b*", /* PHOTOMETRIC_CIELAB */ - "ICC L*a*b*", /* PHOTOMETRIC_ICCLAB */ - "ITU L*a*b*" /* PHOTOMETRIC_ITULAB */ -}; -#define NPHOTONAMES (sizeof (photoNames) / sizeof (photoNames[0])) - -static const char *orientNames[] = { - "0 (0x0)", - "row 0 top, col 0 lhs", /* ORIENTATION_TOPLEFT */ - "row 0 top, col 0 rhs", /* ORIENTATION_TOPRIGHT */ - "row 0 bottom, col 0 rhs", /* ORIENTATION_BOTRIGHT */ - "row 0 bottom, col 0 lhs", /* ORIENTATION_BOTLEFT */ - "row 0 lhs, col 0 top", /* ORIENTATION_LEFTTOP */ - "row 0 rhs, col 0 top", /* ORIENTATION_RIGHTTOP */ - "row 0 rhs, col 0 bottom", /* ORIENTATION_RIGHTBOT */ - "row 0 lhs, col 0 bottom", /* ORIENTATION_LEFTBOT */ -}; -#define NORIENTNAMES (sizeof (orientNames) / sizeof (orientNames[0])) - -static void -_TIFFPrintField(FILE* fd, const TIFFField *fip, - uint32 value_count, void *raw_data) -{ - uint32 j; - - fprintf(fd, " %s: ", fip->field_name); - - for(j = 0; j < value_count; j++) { - if(fip->field_type == TIFF_BYTE) - fprintf(fd, "%u", ((uint8 *) raw_data)[j]); - else if(fip->field_type == TIFF_UNDEFINED) - fprintf(fd, "0x%x", - (unsigned int) ((unsigned char *) raw_data)[j]); - else if(fip->field_type == TIFF_SBYTE) - fprintf(fd, "%d", ((int8 *) raw_data)[j]); - else if(fip->field_type == TIFF_SHORT) - fprintf(fd, "%u", ((uint16 *) raw_data)[j]); - else if(fip->field_type == TIFF_SSHORT) - fprintf(fd, "%d", ((int16 *) raw_data)[j]); - else if(fip->field_type == TIFF_LONG) - fprintf(fd, "%lu", - (unsigned long)((uint32 *) raw_data)[j]); - else if(fip->field_type == TIFF_SLONG) - fprintf(fd, "%ld", (long)((int32 *) raw_data)[j]); - else if(fip->field_type == TIFF_IFD) - fprintf(fd, "0x%lx", - (unsigned long)((uint32 *) raw_data)[j]); - else if(fip->field_type == TIFF_RATIONAL - || fip->field_type == TIFF_SRATIONAL - || fip->field_type == TIFF_FLOAT) - fprintf(fd, "%f", ((float *) raw_data)[j]); - else if(fip->field_type == TIFF_LONG8) -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, "%I64u", - (unsigned __int64)((uint64 *) raw_data)[j]); -#else - fprintf(fd, "%llu", - (unsigned long long)((uint64 *) raw_data)[j]); -#endif - else if(fip->field_type == TIFF_SLONG8) -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, "%I64d", (__int64)((int64 *) raw_data)[j]); -#else - fprintf(fd, "%lld", (long long)((int64 *) raw_data)[j]); -#endif - else if(fip->field_type == TIFF_IFD8) -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, "0x%I64x", - (unsigned __int64)((uint64 *) raw_data)[j]); -#else - fprintf(fd, "0x%llx", - (unsigned long long)((uint64 *) raw_data)[j]); -#endif - else if(fip->field_type == TIFF_FLOAT) - fprintf(fd, "%f", ((float *)raw_data)[j]); - else if(fip->field_type == TIFF_DOUBLE) - fprintf(fd, "%f", ((double *) raw_data)[j]); - else if(fip->field_type == TIFF_ASCII) { - fprintf(fd, "%s", (char *) raw_data); - break; - } - else { - fprintf(fd, ""); - break; - } - - if(j < value_count - 1) - fprintf(fd, ","); - } - - fprintf(fd, "\n"); -} - -static int -_TIFFPrettyPrintField(TIFF* tif, const TIFFField *fip, FILE* fd, uint32 tag, - uint32 value_count, void *raw_data) -{ - (void) tif; - - /* do not try to pretty print auto-defined fields */ - if (strncmp(fip->field_name,"Tag ", 4) == 0) { - return 0; - } - - switch (tag) - { - case TIFFTAG_INKSET: - if (value_count == 2 && fip->field_type == TIFF_SHORT) { - fprintf(fd, " Ink Set: "); - switch (*((uint16*)raw_data)) { - case INKSET_CMYK: - fprintf(fd, "CMYK\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - *((uint16*)raw_data), - *((uint16*)raw_data)); - break; - } - return 1; - } - return 0; - - case TIFFTAG_DOTRANGE: - if (value_count == 2 && fip->field_type == TIFF_SHORT) { - fprintf(fd, " Dot Range: %u-%u\n", - ((uint16*)raw_data)[0], ((uint16*)raw_data)[1]); - return 1; - } - return 0; - - case TIFFTAG_WHITEPOINT: - if (value_count == 2 && fip->field_type == TIFF_RATIONAL) { - fprintf(fd, " White Point: %g-%g\n", - ((float *)raw_data)[0], ((float *)raw_data)[1]); - return 1; - } - return 0; - - case TIFFTAG_XMLPACKET: - { - uint32 i; - - fprintf(fd, " XMLPacket (XMP Metadata):\n" ); - for(i = 0; i < value_count; i++) - fputc(((char *)raw_data)[i], fd); - fprintf( fd, "\n" ); - return 1; - } - case TIFFTAG_RICHTIFFIPTC: - /* - * XXX: for some weird reason RichTIFFIPTC tag - * defined as array of LONG values. - */ - fprintf(fd, - " RichTIFFIPTC Data: , %lu bytes\n", - (unsigned long) value_count * 4); - return 1; - - case TIFFTAG_PHOTOSHOP: - fprintf(fd, " Photoshop Data: , %lu bytes\n", - (unsigned long) value_count); - return 1; - - case TIFFTAG_ICCPROFILE: - fprintf(fd, " ICC Profile: , %lu bytes\n", - (unsigned long) value_count); - return 1; - - case TIFFTAG_STONITS: - if (value_count == 1 && fip->field_type == TIFF_DOUBLE) { - fprintf(fd, - " Sample to Nits conversion factor: %.4e\n", - *((double*)raw_data)); - return 1; - } - return 0; - } - - return 0; -} - -/* - * Print the contents of the current directory - * to the specified stdio file stream. - */ -void -TIFFPrintDirectory(TIFF* tif, FILE* fd, long flags) -{ - TIFFDirectory *td = &tif->tif_dir; - char *sep; - uint16 i; - long l, n; - -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, "TIFF Directory at offset 0x%I64x (%I64u)\n", - (unsigned __int64) tif->tif_diroff, - (unsigned __int64) tif->tif_diroff); -#else - fprintf(fd, "TIFF Directory at offset 0x%llx (%llu)\n", - (unsigned long long) tif->tif_diroff, - (unsigned long long) tif->tif_diroff); -#endif - if (TIFFFieldSet(tif,FIELD_SUBFILETYPE)) { - fprintf(fd, " Subfile Type:"); - sep = " "; - if (td->td_subfiletype & FILETYPE_REDUCEDIMAGE) { - fprintf(fd, "%sreduced-resolution image", sep); - sep = "/"; - } - if (td->td_subfiletype & FILETYPE_PAGE) { - fprintf(fd, "%smulti-page document", sep); - sep = "/"; - } - if (td->td_subfiletype & FILETYPE_MASK) - fprintf(fd, "%stransparency mask", sep); - fprintf(fd, " (%lu = 0x%lx)\n", - (long) td->td_subfiletype, (long) td->td_subfiletype); - } - if (TIFFFieldSet(tif,FIELD_IMAGEDIMENSIONS)) { - fprintf(fd, " Image Width: %lu Image Length: %lu", - (unsigned long) td->td_imagewidth, (unsigned long) td->td_imagelength); - if (TIFFFieldSet(tif,FIELD_IMAGEDEPTH)) - fprintf(fd, " Image Depth: %lu", - (unsigned long) td->td_imagedepth); - fprintf(fd, "\n"); - } - if (TIFFFieldSet(tif,FIELD_TILEDIMENSIONS)) { - fprintf(fd, " Tile Width: %lu Tile Length: %lu", - (unsigned long) td->td_tilewidth, (unsigned long) td->td_tilelength); - if (TIFFFieldSet(tif,FIELD_TILEDEPTH)) - fprintf(fd, " Tile Depth: %lu", - (unsigned long) td->td_tiledepth); - fprintf(fd, "\n"); - } - if (TIFFFieldSet(tif,FIELD_RESOLUTION)) { - fprintf(fd, " Resolution: %g, %g", - td->td_xresolution, td->td_yresolution); - if (TIFFFieldSet(tif,FIELD_RESOLUTIONUNIT)) { - switch (td->td_resolutionunit) { - case RESUNIT_NONE: - fprintf(fd, " (unitless)"); - break; - case RESUNIT_INCH: - fprintf(fd, " pixels/inch"); - break; - case RESUNIT_CENTIMETER: - fprintf(fd, " pixels/cm"); - break; - default: - fprintf(fd, " (unit %u = 0x%x)", - td->td_resolutionunit, - td->td_resolutionunit); - break; - } - } - fprintf(fd, "\n"); - } - if (TIFFFieldSet(tif,FIELD_POSITION)) - fprintf(fd, " Position: %g, %g\n", - td->td_xposition, td->td_yposition); - if (TIFFFieldSet(tif,FIELD_BITSPERSAMPLE)) - fprintf(fd, " Bits/Sample: %u\n", td->td_bitspersample); - if (TIFFFieldSet(tif,FIELD_SAMPLEFORMAT)) { - fprintf(fd, " Sample Format: "); - switch (td->td_sampleformat) { - case SAMPLEFORMAT_VOID: - fprintf(fd, "void\n"); - break; - case SAMPLEFORMAT_INT: - fprintf(fd, "signed integer\n"); - break; - case SAMPLEFORMAT_UINT: - fprintf(fd, "unsigned integer\n"); - break; - case SAMPLEFORMAT_IEEEFP: - fprintf(fd, "IEEE floating point\n"); - break; - case SAMPLEFORMAT_COMPLEXINT: - fprintf(fd, "complex signed integer\n"); - break; - case SAMPLEFORMAT_COMPLEXIEEEFP: - fprintf(fd, "complex IEEE floating point\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_sampleformat, td->td_sampleformat); - break; - } - } - if (TIFFFieldSet(tif,FIELD_COMPRESSION)) { - const TIFFCodec* c = TIFFFindCODEC(td->td_compression); - fprintf(fd, " Compression Scheme: "); - if (c) - fprintf(fd, "%s\n", c->name); - else - fprintf(fd, "%u (0x%x)\n", - td->td_compression, td->td_compression); - } - if (TIFFFieldSet(tif,FIELD_PHOTOMETRIC)) { - fprintf(fd, " Photometric Interpretation: "); - if (td->td_photometric < NPHOTONAMES) - fprintf(fd, "%s\n", photoNames[td->td_photometric]); - else { - switch (td->td_photometric) { - case PHOTOMETRIC_LOGL: - fprintf(fd, "CIE Log2(L)\n"); - break; - case PHOTOMETRIC_LOGLUV: - fprintf(fd, "CIE Log2(L) (u',v')\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_photometric, td->td_photometric); - break; - } - } - } - if (TIFFFieldSet(tif,FIELD_EXTRASAMPLES) && td->td_extrasamples) { - fprintf(fd, " Extra Samples: %u<", td->td_extrasamples); - sep = ""; - for (i = 0; i < td->td_extrasamples; i++) { - switch (td->td_sampleinfo[i]) { - case EXTRASAMPLE_UNSPECIFIED: - fprintf(fd, "%sunspecified", sep); - break; - case EXTRASAMPLE_ASSOCALPHA: - fprintf(fd, "%sassoc-alpha", sep); - break; - case EXTRASAMPLE_UNASSALPHA: - fprintf(fd, "%sunassoc-alpha", sep); - break; - default: - fprintf(fd, "%s%u (0x%x)", sep, - td->td_sampleinfo[i], td->td_sampleinfo[i]); - break; - } - sep = ", "; - } - fprintf(fd, ">\n"); - } - if (TIFFFieldSet(tif,FIELD_INKNAMES)) { - char* cp; - fprintf(fd, " Ink Names: "); - i = td->td_samplesperpixel; - sep = ""; - for (cp = td->td_inknames; - i > 0 && cp < td->td_inknames + td->td_inknameslen; - cp = strchr(cp,'\0')+1, i--) { - int max_chars = - td->td_inknameslen - (cp - td->td_inknames); - fputs(sep, fd); - _TIFFprintAsciiBounded(fd, cp, max_chars); - sep = ", "; - } - fputs("\n", fd); - } - if (TIFFFieldSet(tif,FIELD_THRESHHOLDING)) { - fprintf(fd, " Thresholding: "); - switch (td->td_threshholding) { - case THRESHHOLD_BILEVEL: - fprintf(fd, "bilevel art scan\n"); - break; - case THRESHHOLD_HALFTONE: - fprintf(fd, "halftone or dithered scan\n"); - break; - case THRESHHOLD_ERRORDIFFUSE: - fprintf(fd, "error diffused\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_threshholding, td->td_threshholding); - break; - } - } - if (TIFFFieldSet(tif,FIELD_FILLORDER)) { - fprintf(fd, " FillOrder: "); - switch (td->td_fillorder) { - case FILLORDER_MSB2LSB: - fprintf(fd, "msb-to-lsb\n"); - break; - case FILLORDER_LSB2MSB: - fprintf(fd, "lsb-to-msb\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_fillorder, td->td_fillorder); - break; - } - } - if (TIFFFieldSet(tif,FIELD_YCBCRSUBSAMPLING)) - { - fprintf(fd, " YCbCr Subsampling: %u, %u\n", - td->td_ycbcrsubsampling[0], td->td_ycbcrsubsampling[1] ); - } - if (TIFFFieldSet(tif,FIELD_YCBCRPOSITIONING)) { - fprintf(fd, " YCbCr Positioning: "); - switch (td->td_ycbcrpositioning) { - case YCBCRPOSITION_CENTERED: - fprintf(fd, "centered\n"); - break; - case YCBCRPOSITION_COSITED: - fprintf(fd, "cosited\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_ycbcrpositioning, td->td_ycbcrpositioning); - break; - } - } - if (TIFFFieldSet(tif,FIELD_HALFTONEHINTS)) - fprintf(fd, " Halftone Hints: light %u dark %u\n", - td->td_halftonehints[0], td->td_halftonehints[1]); - if (TIFFFieldSet(tif,FIELD_ORIENTATION)) { - fprintf(fd, " Orientation: "); - if (td->td_orientation < NORIENTNAMES) - fprintf(fd, "%s\n", orientNames[td->td_orientation]); - else - fprintf(fd, "%u (0x%x)\n", - td->td_orientation, td->td_orientation); - } - if (TIFFFieldSet(tif,FIELD_SAMPLESPERPIXEL)) - fprintf(fd, " Samples/Pixel: %u\n", td->td_samplesperpixel); - if (TIFFFieldSet(tif,FIELD_ROWSPERSTRIP)) { - fprintf(fd, " Rows/Strip: "); - if (td->td_rowsperstrip == (uint32) -1) - fprintf(fd, "(infinite)\n"); - else - fprintf(fd, "%lu\n", (unsigned long) td->td_rowsperstrip); - } - if (TIFFFieldSet(tif,FIELD_MINSAMPLEVALUE)) - fprintf(fd, " Min Sample Value: %u\n", td->td_minsamplevalue); - if (TIFFFieldSet(tif,FIELD_MAXSAMPLEVALUE)) - fprintf(fd, " Max Sample Value: %u\n", td->td_maxsamplevalue); - if (TIFFFieldSet(tif,FIELD_SMINSAMPLEVALUE)) { - int count = (tif->tif_flags & TIFF_PERSAMPLE) ? td->td_samplesperpixel : 1; - fprintf(fd, " SMin Sample Value:"); - for (i = 0; i < count; ++i) - fprintf(fd, " %g", td->td_sminsamplevalue[i]); - fprintf(fd, "\n"); - } - if (TIFFFieldSet(tif,FIELD_SMAXSAMPLEVALUE)) { - int count = (tif->tif_flags & TIFF_PERSAMPLE) ? td->td_samplesperpixel : 1; - fprintf(fd, " SMax Sample Value:"); - for (i = 0; i < count; ++i) - fprintf(fd, " %g", td->td_smaxsamplevalue[i]); - fprintf(fd, "\n"); - } - if (TIFFFieldSet(tif,FIELD_PLANARCONFIG)) { - fprintf(fd, " Planar Configuration: "); - switch (td->td_planarconfig) { - case PLANARCONFIG_CONTIG: - fprintf(fd, "single image plane\n"); - break; - case PLANARCONFIG_SEPARATE: - fprintf(fd, "separate image planes\n"); - break; - default: - fprintf(fd, "%u (0x%x)\n", - td->td_planarconfig, td->td_planarconfig); - break; - } - } - if (TIFFFieldSet(tif,FIELD_PAGENUMBER)) - fprintf(fd, " Page Number: %u-%u\n", - td->td_pagenumber[0], td->td_pagenumber[1]); - if (TIFFFieldSet(tif,FIELD_COLORMAP)) { - fprintf(fd, " Color Map: "); - if (flags & TIFFPRINT_COLORMAP) { - fprintf(fd, "\n"); - n = 1L<td_bitspersample; - for (l = 0; l < n; l++) - fprintf(fd, " %5lu: %5u %5u %5u\n", - l, - td->td_colormap[0][l], - td->td_colormap[1][l], - td->td_colormap[2][l]); - } else - fprintf(fd, "(present)\n"); - } - if (TIFFFieldSet(tif,FIELD_REFBLACKWHITE)) { - fprintf(fd, " Reference Black/White:\n"); - for (i = 0; i < 3; i++) - fprintf(fd, " %2d: %5g %5g\n", i, - td->td_refblackwhite[2*i+0], - td->td_refblackwhite[2*i+1]); - } - if (TIFFFieldSet(tif,FIELD_TRANSFERFUNCTION)) { - fprintf(fd, " Transfer Function: "); - if (flags & TIFFPRINT_CURVES) { - fprintf(fd, "\n"); - n = 1L<td_bitspersample; - for (l = 0; l < n; l++) { - fprintf(fd, " %2lu: %5u", - l, td->td_transferfunction[0][l]); - for (i = 1; i < td->td_samplesperpixel; i++) - fprintf(fd, " %5u", - td->td_transferfunction[i][l]); - fputc('\n', fd); - } - } else - fprintf(fd, "(present)\n"); - } - if (TIFFFieldSet(tif, FIELD_SUBIFD) && (td->td_subifd)) { - fprintf(fd, " SubIFD Offsets:"); - for (i = 0; i < td->td_nsubifd; i++) -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, " %5I64u", - (unsigned __int64) td->td_subifd[i]); -#else - fprintf(fd, " %5llu", - (unsigned long long) td->td_subifd[i]); -#endif - fputc('\n', fd); - } - - /* - ** Custom tag support. - */ - { - int i; - short count; - - count = (short) TIFFGetTagListCount(tif); - for(i = 0; i < count; i++) { - uint32 tag = TIFFGetTagListEntry(tif, i); - const TIFFField *fip; - uint32 value_count; - int mem_alloc = 0; - void *raw_data; - - fip = TIFFFieldWithTag(tif, tag); - if(fip == NULL) - continue; - - if(fip->field_passcount) { - if (fip->field_readcount == TIFF_VARIABLE2 ) { - if(TIFFGetField(tif, tag, &value_count, &raw_data) != 1) - continue; - } else if (fip->field_readcount == TIFF_VARIABLE ) { - uint16 small_value_count; - if(TIFFGetField(tif, tag, &small_value_count, &raw_data) != 1) - continue; - value_count = small_value_count; - } else { - assert (fip->field_readcount == TIFF_VARIABLE - || fip->field_readcount == TIFF_VARIABLE2); - continue; - } - } else { - if (fip->field_readcount == TIFF_VARIABLE - || fip->field_readcount == TIFF_VARIABLE2) - value_count = 1; - else if (fip->field_readcount == TIFF_SPP) - value_count = td->td_samplesperpixel; - else - value_count = fip->field_readcount; - if (fip->field_tag == TIFFTAG_DOTRANGE - && strcmp(fip->field_name,"DotRange") == 0) { - /* TODO: This is an evil exception and should not have been - handled this way ... likely best if we move it into - the directory structure with an explicit field in - libtiff 4.1 and assign it a FIELD_ value */ - static uint16 dotrange[2]; - raw_data = dotrange; - TIFFGetField(tif, tag, dotrange+0, dotrange+1); - } else if (fip->field_type == TIFF_ASCII - || fip->field_readcount == TIFF_VARIABLE - || fip->field_readcount == TIFF_VARIABLE2 - || fip->field_readcount == TIFF_SPP - || value_count > 1) { - if(TIFFGetField(tif, tag, &raw_data) != 1) - continue; - } else { - raw_data = _TIFFmalloc( - _TIFFDataSize(fip->field_type) - * value_count); - mem_alloc = 1; - if(TIFFGetField(tif, tag, raw_data) != 1) { - _TIFFfree(raw_data); - continue; - } - } - } - - /* - * Catch the tags which needs to be specially handled - * and pretty print them. If tag not handled in - * _TIFFPrettyPrintField() fall down and print it as - * any other tag. - */ - if (!_TIFFPrettyPrintField(tif, fip, fd, tag, value_count, raw_data)) - _TIFFPrintField(fd, fip, value_count, raw_data); - - if(mem_alloc) - _TIFFfree(raw_data); - } - } - - if (tif->tif_tagmethods.printdir) - (*tif->tif_tagmethods.printdir)(tif, fd, flags); - - _TIFFFillStriles( tif ); - - if ((flags & TIFFPRINT_STRIPS) && - TIFFFieldSet(tif,FIELD_STRIPOFFSETS)) { - uint32 s; - - fprintf(fd, " %lu %s:\n", - (long) td->td_nstrips, - isTiled(tif) ? "Tiles" : "Strips"); - for (s = 0; s < td->td_nstrips; s++) -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - fprintf(fd, " %3lu: [%8I64u, %8I64u]\n", - (unsigned long) s, - (unsigned __int64) td->td_stripoffset[s], - (unsigned __int64) td->td_stripbytecount[s]); -#else - fprintf(fd, " %3lu: [%8llu, %8llu]\n", - (unsigned long) s, - (unsigned long long) td->td_stripoffset[s], - (unsigned long long) td->td_stripbytecount[s]); -#endif - } -} - -void -_TIFFprintAscii(FILE* fd, const char* cp) -{ - _TIFFprintAsciiBounded( fd, cp, strlen(cp)); -} - -static void -_TIFFprintAsciiBounded(FILE* fd, const char* cp, int max_chars) -{ - for (; max_chars > 0 && *cp != '\0'; cp++, max_chars--) { - const char* tp; - - if (isprint((int)*cp)) { - fputc(*cp, fd); - continue; - } - for (tp = "\tt\bb\rr\nn\vv"; *tp; tp++) - if (*tp++ == *cp) - break; - if (*tp) - fprintf(fd, "\\%c", *tp); - else - fprintf(fd, "\\%03o", *cp & 0xff); - } -} - -void -_TIFFprintAsciiTag(FILE* fd, const char* name, const char* value) -{ - fprintf(fd, " %s: \"", name); - _TIFFprintAscii(fd, value); - fprintf(fd, "\"\n"); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_read.c b/tiff/libtiff/tif_read.c deleted file mode 100755 index b009519..0000000 --- a/tiff/libtiff/tif_read.c +++ /dev/null @@ -1,1086 +0,0 @@ -/* $Id: tif_read.c,v 1.44 2014-12-23 10:15:35 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * Scanline-oriented Read Support - */ -#include "tiffiop.h" -#include - -int TIFFFillStrip(TIFF* tif, uint32 strip); -int TIFFFillTile(TIFF* tif, uint32 tile); -static int TIFFStartStrip(TIFF* tif, uint32 strip); -static int TIFFStartTile(TIFF* tif, uint32 tile); -static int TIFFCheckRead(TIFF*, int); -static tmsize_t -TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size,const char* module); - -#define NOSTRIP ((uint32)(-1)) /* undefined state */ -#define NOTILE ((uint32)(-1)) /* undefined state */ - -static int -TIFFFillStripPartial( TIFF *tif, int strip, tmsize_t read_ahead, int restart ) -{ - static const char module[] = "TIFFFillStripPartial"; - register TIFFDirectory *td = &tif->tif_dir; - tmsize_t unused_data; - uint64 read_offset; - tmsize_t cc, to_read; - /* tmsize_t bytecountm; */ - - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - - /* - * Expand raw data buffer, if needed, to hold data - * strip coming from file (perhaps should set upper - * bound on the size of a buffer we'll use?). - */ - - /* bytecountm=(tmsize_t) td->td_stripbytecount[strip]; */ - if (read_ahead*2 > tif->tif_rawdatasize) { - assert( restart ); - - tif->tif_curstrip = NOSTRIP; - if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Data buffer too small to hold part of strip %lu", - (unsigned long) strip); - return (0); - } - if (!TIFFReadBufferSetup(tif, 0, read_ahead*2)) - return (0); - } - - if( restart ) - { - tif->tif_rawdataloaded = 0; - tif->tif_rawdataoff = 0; - } - - /* - ** If we are reading more data, move any unused data to the - ** start of the buffer. - */ - if( tif->tif_rawdataloaded > 0 ) - unused_data = tif->tif_rawdataloaded - (tif->tif_rawcp - tif->tif_rawdata); - else - unused_data = 0; - - if( unused_data > 0 ) - { - assert((tif->tif_flags&TIFF_BUFFERMMAP)==0); - memmove( tif->tif_rawdata, tif->tif_rawcp, unused_data ); - } - - /* - ** Seek to the point in the file where more data should be read. - */ - read_offset = td->td_stripoffset[strip] - + tif->tif_rawdataoff + tif->tif_rawdataloaded; - - if (!SeekOK(tif, read_offset)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Seek error at scanline %lu, strip %lu", - (unsigned long) tif->tif_row, (unsigned long) strip); - return 0; - } - - /* - ** How much do we want to read? - */ - to_read = tif->tif_rawdatasize - unused_data; - if( (uint64) to_read > td->td_stripbytecount[strip] - - tif->tif_rawdataoff - tif->tif_rawdataloaded ) - { - to_read = (tmsize_t) td->td_stripbytecount[strip] - - tif->tif_rawdataoff - tif->tif_rawdataloaded; - } - - assert((tif->tif_flags&TIFF_BUFFERMMAP)==0); - cc = TIFFReadFile(tif, tif->tif_rawdata + unused_data, to_read); - - if (cc != to_read) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu; got %I64u bytes, expected %I64u", - (unsigned long) tif->tif_row, - (unsigned __int64) cc, - (unsigned __int64) to_read); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu; got %llu bytes, expected %llu", - (unsigned long) tif->tif_row, - (unsigned long long) cc, - (unsigned long long) to_read); -#endif - return 0; - } - - tif->tif_rawdataoff = tif->tif_rawdataoff + tif->tif_rawdataloaded - unused_data ; - tif->tif_rawdataloaded = unused_data + to_read; - - tif->tif_rawcp = tif->tif_rawdata; - - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) { - assert((tif->tif_flags&TIFF_BUFFERMMAP)==0); - TIFFReverseBits(tif->tif_rawdata + unused_data, to_read ); - } - - /* - ** When starting a strip from the beginning we need to - ** restart the decoder. - */ - if( restart ) - return TIFFStartStrip(tif, strip); - else - return 1; -} - -/* - * Seek to a random row+sample in a file. - * - * Only used by TIFFReadScanline, and is only used on - * strip organized files. We do some tricky stuff to try - * and avoid reading the whole compressed raw data for big - * strips. - */ -static int -TIFFSeek(TIFF* tif, uint32 row, uint16 sample ) -{ - register TIFFDirectory *td = &tif->tif_dir; - uint32 strip; - int whole_strip; - tmsize_t read_ahead = 0; - - /* - ** Establish what strip we are working from. - */ - if (row >= td->td_imagelength) { /* out of range */ - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Row out of range, max %lu", - (unsigned long) row, - (unsigned long) td->td_imagelength); - return (0); - } - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - if (sample >= td->td_samplesperpixel) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Sample out of range, max %lu", - (unsigned long) sample, (unsigned long) td->td_samplesperpixel); - return (0); - } - strip = (uint32)sample*td->td_stripsperimage + row/td->td_rowsperstrip; - } else - strip = row / td->td_rowsperstrip; - - /* - * Do we want to treat this strip as one whole chunk or - * read it a few lines at a time? - */ -#if defined(CHUNKY_STRIP_READ_SUPPORT) - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - whole_strip = tif->tif_dir.td_stripbytecount[strip] < 10 - || isMapped(tif); -#else - whole_strip = 1; -#endif - - if( !whole_strip ) - { - read_ahead = tif->tif_scanlinesize * 16 + 5000; - } - - /* - * If we haven't loaded this strip, do so now, possibly - * only reading the first part. - */ - if (strip != tif->tif_curstrip) { /* different strip, refill */ - - if( whole_strip ) - { - if (!TIFFFillStrip(tif, strip)) - return (0); - } - else - { - if( !TIFFFillStripPartial(tif,strip,read_ahead,1) ) - return 0; - } - } - - /* - ** If we already have some data loaded, do we need to read some more? - */ - else if( !whole_strip ) - { - if( ((tif->tif_rawdata + tif->tif_rawdataloaded) - tif->tif_rawcp) < read_ahead - && (uint64) tif->tif_rawdataoff+tif->tif_rawdataloaded < td->td_stripbytecount[strip] ) - { - if( !TIFFFillStripPartial(tif,strip,read_ahead,0) ) - return 0; - } - } - - if (row < tif->tif_row) { - /* - * Moving backwards within the same strip: backup - * to the start and then decode forward (below). - * - * NB: If you're planning on lots of random access within a - * strip, it's better to just read and decode the entire - * strip, and then access the decoded data in a random fashion. - */ - - if( tif->tif_rawdataoff != 0 ) - { - if( !TIFFFillStripPartial(tif,strip,read_ahead,1) ) - return 0; - } - else - { - if (!TIFFStartStrip(tif, strip)) - return (0); - } - } - - if (row != tif->tif_row) { - /* - * Seek forward to the desired row. - */ - - /* TODO: Will this really work with partial buffers? */ - - if (!(*tif->tif_seek)(tif, row - tif->tif_row)) - return (0); - tif->tif_row = row; - } - - return (1); -} - -int -TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample) -{ - int e; - - if (!TIFFCheckRead(tif, 0)) - return (-1); - if( (e = TIFFSeek(tif, row, sample)) != 0) { - /* - * Decompress desired row into user buffer. - */ - e = (*tif->tif_decoderow) - (tif, (uint8*) buf, tif->tif_scanlinesize, sample); - - /* we are now poised at the beginning of the next row */ - tif->tif_row = row + 1; - - if (e) - (*tif->tif_postdecode)(tif, (uint8*) buf, - tif->tif_scanlinesize); - } - return (e > 0 ? 1 : -1); -} - -/* - * Read a strip of data and decompress the specified - * amount into the user-supplied buffer. - */ -tmsize_t -TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size) -{ - static const char module[] = "TIFFReadEncodedStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint32 rowsperstrip; - uint32 stripsperplane; - uint32 stripinplane; - uint16 plane; - uint32 rows; - tmsize_t stripsize; - if (!TIFFCheckRead(tif,0)) - return((tmsize_t)(-1)); - if (strip>=td->td_nstrips) - { - TIFFErrorExt(tif->tif_clientdata,module, - "%lu: Strip out of range, max %lu",(unsigned long)strip, - (unsigned long)td->td_nstrips); - return((tmsize_t)(-1)); - } - /* - * Calculate the strip size according to the number of - * rows in the strip (check for truncated last strip on any - * of the separations). - */ - rowsperstrip=td->td_rowsperstrip; - if (rowsperstrip>td->td_imagelength) - rowsperstrip=td->td_imagelength; - stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip); - stripinplane=(strip%stripsperplane); - plane=(strip/stripsperplane); - rows=td->td_imagelength-stripinplane*rowsperstrip; - if (rows>rowsperstrip) - rows=rowsperstrip; - stripsize=TIFFVStripSize(tif,rows); - if (stripsize==0) - return((tmsize_t)(-1)); - if ((size!=(tmsize_t)(-1))&&(sizetif_decodestrip)(tif,buf,stripsize,plane)<=0) - return((tmsize_t)(-1)); - (*tif->tif_postdecode)(tif,buf,stripsize); - return(stripsize); -} - -static tmsize_t -TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size, - const char* module) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif )) - return ((tmsize_t)(-1)); - - assert((tif->tif_flags&TIFF_NOREADRAW)==0); - if (!isMapped(tif)) { - tmsize_t cc; - - if (!SeekOK(tif, td->td_stripoffset[strip])) { - TIFFErrorExt(tif->tif_clientdata, module, - "Seek error at scanline %lu, strip %lu", - (unsigned long) tif->tif_row, (unsigned long) strip); - return ((tmsize_t)(-1)); - } - cc = TIFFReadFile(tif, buf, size); - if (cc != size) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu; got %I64u bytes, expected %I64u", - (unsigned long) tif->tif_row, - (unsigned __int64) cc, - (unsigned __int64) size); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu; got %llu bytes, expected %llu", - (unsigned long) tif->tif_row, - (unsigned long long) cc, - (unsigned long long) size); -#endif - return ((tmsize_t)(-1)); - } - } else { - tmsize_t ma,mb; - tmsize_t n; - ma=(tmsize_t)td->td_stripoffset[strip]; - mb=ma+size; - if (((uint64)ma!=td->td_stripoffset[strip])||(ma>tif->tif_size)) - n=0; - else if ((mbtif->tif_size)) - n=tif->tif_size-ma; - else - n=size; - if (n!=size) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu, strip %lu; got %I64u bytes, expected %I64u", - (unsigned long) tif->tif_row, - (unsigned long) strip, - (unsigned __int64) n, - (unsigned __int64) size); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at scanline %lu, strip %lu; got %llu bytes, expected %llu", - (unsigned long) tif->tif_row, - (unsigned long) strip, - (unsigned long long) n, - (unsigned long long) size); -#endif - return ((tmsize_t)(-1)); - } - _TIFFmemcpy(buf, tif->tif_base + ma, - size); - } - return (size); -} - -/* - * Read a strip of data from the file. - */ -tmsize_t -TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size) -{ - static const char module[] = "TIFFReadRawStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint64 bytecount; - tmsize_t bytecountm; - - if (!TIFFCheckRead(tif, 0)) - return ((tmsize_t)(-1)); - if (strip >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Strip out of range, max %lu", - (unsigned long) strip, - (unsigned long) td->td_nstrips); - return ((tmsize_t)(-1)); - } - if (tif->tif_flags&TIFF_NOREADRAW) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Compression scheme does not support access to raw uncompressed data"); - return ((tmsize_t)(-1)); - } - bytecount = td->td_stripbytecount[strip]; - if ((int64)bytecount <= 0) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "%I64u: Invalid strip byte count, strip %lu", - (unsigned __int64) bytecount, - (unsigned long) strip); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "%llu: Invalid strip byte count, strip %lu", - (unsigned long long) bytecount, - (unsigned long) strip); -#endif - return ((tmsize_t)(-1)); - } - bytecountm = (tmsize_t)bytecount; - if ((uint64)bytecountm!=bytecount) { - TIFFErrorExt(tif->tif_clientdata, module, "Integer overflow"); - return ((tmsize_t)(-1)); - } - if (size != (tmsize_t)(-1) && size < bytecountm) - bytecountm = size; - return (TIFFReadRawStrip1(tif, strip, buf, bytecountm, module)); -} - -/* - * Read the specified strip and setup for decoding. The data buffer is - * expanded, as necessary, to hold the strip's data. - */ -int -TIFFFillStrip(TIFF* tif, uint32 strip) -{ - static const char module[] = "TIFFFillStrip"; - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - - if ((tif->tif_flags&TIFF_NOREADRAW)==0) - { - uint64 bytecount = td->td_stripbytecount[strip]; - if ((int64)bytecount <= 0) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Invalid strip byte count %I64u, strip %lu", - (unsigned __int64) bytecount, - (unsigned long) strip); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Invalid strip byte count %llu, strip %lu", - (unsigned long long) bytecount, - (unsigned long) strip); -#endif - return (0); - } - if (isMapped(tif) && - (isFillOrder(tif, td->td_fillorder) - || (tif->tif_flags & TIFF_NOBITREV))) { - /* - * The image is mapped into memory and we either don't - * need to flip bits or the compression routine is - * going to handle this operation itself. In this - * case, avoid copying the raw data and instead just - * reference the data from the memory mapped file - * image. This assumes that the decompression - * routines do not modify the contents of the raw data - * buffer (if they try to, the application will get a - * fault since the file is mapped read-only). - */ - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawdatasize = 0; - } - tif->tif_flags &= ~TIFF_MYBUFFER; - /* - * We must check for overflow, potentially causing - * an OOB read. Instead of simple - * - * td->td_stripoffset[strip]+bytecount > tif->tif_size - * - * comparison (which can overflow) we do the following - * two comparisons: - */ - if (bytecount > (uint64)tif->tif_size || - td->td_stripoffset[strip] > (uint64)tif->tif_size - bytecount) { - /* - * This error message might seem strange, but - * it's what would happen if a read were done - * instead. - */ -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - - "Read error on strip %lu; " - "got %I64u bytes, expected %I64u", - (unsigned long) strip, - (unsigned __int64) tif->tif_size - td->td_stripoffset[strip], - (unsigned __int64) bytecount); -#else - TIFFErrorExt(tif->tif_clientdata, module, - - "Read error on strip %lu; " - "got %llu bytes, expected %llu", - (unsigned long) strip, - (unsigned long long) tif->tif_size - td->td_stripoffset[strip], - (unsigned long long) bytecount); -#endif - tif->tif_curstrip = NOSTRIP; - return (0); - } - tif->tif_rawdatasize = (tmsize_t)bytecount; - tif->tif_rawdata = tif->tif_base + (tmsize_t)td->td_stripoffset[strip]; - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = (tmsize_t) bytecount; - - /* - * When we have tif_rawdata reference directly into the memory mapped file - * we need to be pretty careful about how we use the rawdata. It is not - * a general purpose working buffer as it normally otherwise is. So we - * keep track of this fact to avoid using it improperly. - */ - tif->tif_flags |= TIFF_BUFFERMMAP; - } else { - /* - * Expand raw data buffer, if needed, to hold data - * strip coming from file (perhaps should set upper - * bound on the size of a buffer we'll use?). - */ - tmsize_t bytecountm; - bytecountm=(tmsize_t)bytecount; - if ((uint64)bytecountm!=bytecount) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - return(0); - } - if (bytecountm > tif->tif_rawdatasize) { - tif->tif_curstrip = NOSTRIP; - if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Data buffer too small to hold strip %lu", - (unsigned long) strip); - return (0); - } - if (!TIFFReadBufferSetup(tif, 0, bytecountm)) - return (0); - } - if (tif->tif_flags&TIFF_BUFFERMMAP) { - tif->tif_curstrip = NOSTRIP; - if (!TIFFReadBufferSetup(tif, 0, bytecountm)) - return (0); - } - if (TIFFReadRawStrip1(tif, strip, tif->tif_rawdata, - bytecountm, module) != bytecountm) - return (0); - - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = bytecountm; - - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, bytecountm); - } - } - return (TIFFStartStrip(tif, strip)); -} - -/* - * Tile-oriented Read Support - * Contributed by Nancy Cam (Silicon Graphics). - */ - -/* - * Read and decompress a tile of data. The - * tile is selected by the (x,y,z,s) coordinates. - */ -tmsize_t -TIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s) -{ - if (!TIFFCheckRead(tif, 1) || !TIFFCheckTile(tif, x, y, z, s)) - return ((tmsize_t)(-1)); - return (TIFFReadEncodedTile(tif, - TIFFComputeTile(tif, x, y, z, s), buf, (tmsize_t)(-1))); -} - -/* - * Read a tile of data and decompress the specified - * amount into the user-supplied buffer. - */ -tmsize_t -TIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size) -{ - static const char module[] = "TIFFReadEncodedTile"; - TIFFDirectory *td = &tif->tif_dir; - tmsize_t tilesize = tif->tif_tilesize; - - if (!TIFFCheckRead(tif, 1)) - return ((tmsize_t)(-1)); - if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Tile out of range, max %lu", - (unsigned long) tile, (unsigned long) td->td_nstrips); - return ((tmsize_t)(-1)); - } - if (size == (tmsize_t)(-1)) - size = tilesize; - else if (size > tilesize) - size = tilesize; - if (TIFFFillTile(tif, tile) && (*tif->tif_decodetile)(tif, - (uint8*) buf, size, (uint16)(tile/td->td_stripsperimage))) { - (*tif->tif_postdecode)(tif, (uint8*) buf, size); - return (size); - } else - return ((tmsize_t)(-1)); -} - -static tmsize_t -TIFFReadRawTile1(TIFF* tif, uint32 tile, void* buf, tmsize_t size, const char* module) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif )) - return ((tmsize_t)(-1)); - - assert((tif->tif_flags&TIFF_NOREADRAW)==0); - if (!isMapped(tif)) { - tmsize_t cc; - - if (!SeekOK(tif, td->td_stripoffset[tile])) { - TIFFErrorExt(tif->tif_clientdata, module, - "Seek error at row %lu, col %lu, tile %lu", - (unsigned long) tif->tif_row, - (unsigned long) tif->tif_col, - (unsigned long) tile); - return ((tmsize_t)(-1)); - } - cc = TIFFReadFile(tif, buf, size); - if (cc != size) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at row %lu, col %lu; got %I64u bytes, expected %I64u", - (unsigned long) tif->tif_row, - (unsigned long) tif->tif_col, - (unsigned __int64) cc, - (unsigned __int64) size); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "Read error at row %lu, col %lu; got %llu bytes, expected %llu", - (unsigned long) tif->tif_row, - (unsigned long) tif->tif_col, - (unsigned long long) cc, - (unsigned long long) size); -#endif - return ((tmsize_t)(-1)); - } - } else { - tmsize_t ma,mb; - tmsize_t n; - ma=(tmsize_t)td->td_stripoffset[tile]; - mb=ma+size; - if (((uint64)ma!=td->td_stripoffset[tile])||(ma>tif->tif_size)) - n=0; - else if ((mbtif->tif_size)) - n=tif->tif_size-ma; - else - n=size; - if (n!=size) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, -"Read error at row %lu, col %lu, tile %lu; got %I64u bytes, expected %I64u", - (unsigned long) tif->tif_row, - (unsigned long) tif->tif_col, - (unsigned long) tile, - (unsigned __int64) n, - (unsigned __int64) size); -#else - TIFFErrorExt(tif->tif_clientdata, module, -"Read error at row %lu, col %lu, tile %lu; got %llu bytes, expected %llu", - (unsigned long) tif->tif_row, - (unsigned long) tif->tif_col, - (unsigned long) tile, - (unsigned long long) n, - (unsigned long long) size); -#endif - return ((tmsize_t)(-1)); - } - _TIFFmemcpy(buf, tif->tif_base + ma, size); - } - return (size); -} - -/* - * Read a tile of data from the file. - */ -tmsize_t -TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size) -{ - static const char module[] = "TIFFReadRawTile"; - TIFFDirectory *td = &tif->tif_dir; - uint64 bytecount64; - tmsize_t bytecountm; - - if (!TIFFCheckRead(tif, 1)) - return ((tmsize_t)(-1)); - if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Tile out of range, max %lu", - (unsigned long) tile, (unsigned long) td->td_nstrips); - return ((tmsize_t)(-1)); - } - if (tif->tif_flags&TIFF_NOREADRAW) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Compression scheme does not support access to raw uncompressed data"); - return ((tmsize_t)(-1)); - } - bytecount64 = td->td_stripbytecount[tile]; - if (size != (tmsize_t)(-1) && (uint64)size < bytecount64) - bytecount64 = (uint64)size; - bytecountm = (tmsize_t)bytecount64; - if ((uint64)bytecountm!=bytecount64) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - return ((tmsize_t)(-1)); - } - return (TIFFReadRawTile1(tif, tile, buf, bytecountm, module)); -} - -/* - * Read the specified tile and setup for decoding. The data buffer is - * expanded, as necessary, to hold the tile's data. - */ -int -TIFFFillTile(TIFF* tif, uint32 tile) -{ - static const char module[] = "TIFFFillTile"; - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - - if ((tif->tif_flags&TIFF_NOREADRAW)==0) - { - uint64 bytecount = td->td_stripbytecount[tile]; - if ((int64)bytecount <= 0) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "%I64u: Invalid tile byte count, tile %lu", - (unsigned __int64) bytecount, - (unsigned long) tile); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "%llu: Invalid tile byte count, tile %lu", - (unsigned long long) bytecount, - (unsigned long) tile); -#endif - return (0); - } - if (isMapped(tif) && - (isFillOrder(tif, td->td_fillorder) - || (tif->tif_flags & TIFF_NOBITREV))) { - /* - * The image is mapped into memory and we either don't - * need to flip bits or the compression routine is - * going to handle this operation itself. In this - * case, avoid copying the raw data and instead just - * reference the data from the memory mapped file - * image. This assumes that the decompression - * routines do not modify the contents of the raw data - * buffer (if they try to, the application will get a - * fault since the file is mapped read-only). - */ - if ((tif->tif_flags & TIFF_MYBUFFER) && tif->tif_rawdata) { - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawdatasize = 0; - } - tif->tif_flags &= ~TIFF_MYBUFFER; - /* - * We must check for overflow, potentially causing - * an OOB read. Instead of simple - * - * td->td_stripoffset[tile]+bytecount > tif->tif_size - * - * comparison (which can overflow) we do the following - * two comparisons: - */ - if (bytecount > (uint64)tif->tif_size || - td->td_stripoffset[tile] > (uint64)tif->tif_size - bytecount) { - tif->tif_curtile = NOTILE; - return (0); - } - tif->tif_rawdatasize = (tmsize_t)bytecount; - tif->tif_rawdata = - tif->tif_base + (tmsize_t)td->td_stripoffset[tile]; - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = (tmsize_t) bytecount; - tif->tif_flags |= TIFF_BUFFERMMAP; - } else { - /* - * Expand raw data buffer, if needed, to hold data - * tile coming from file (perhaps should set upper - * bound on the size of a buffer we'll use?). - */ - tmsize_t bytecountm; - bytecountm=(tmsize_t)bytecount; - if ((uint64)bytecountm!=bytecount) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - return(0); - } - if (bytecountm > tif->tif_rawdatasize) { - tif->tif_curtile = NOTILE; - if ((tif->tif_flags & TIFF_MYBUFFER) == 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Data buffer too small to hold tile %lu", - (unsigned long) tile); - return (0); - } - if (!TIFFReadBufferSetup(tif, 0, bytecountm)) - return (0); - } - if (tif->tif_flags&TIFF_BUFFERMMAP) { - tif->tif_curtile = NOTILE; - if (!TIFFReadBufferSetup(tif, 0, bytecountm)) - return (0); - } - - if (TIFFReadRawTile1(tif, tile, tif->tif_rawdata, - bytecountm, module) != bytecountm) - return (0); - - tif->tif_rawdataoff = 0; - tif->tif_rawdataloaded = bytecountm; - - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, - tif->tif_rawdataloaded); - } - } - return (TIFFStartTile(tif, tile)); -} - -/* - * Setup the raw data buffer in preparation for - * reading a strip of raw data. If the buffer - * is specified as zero, then a buffer of appropriate - * size is allocated by the library. Otherwise, - * the client must guarantee that the buffer is - * large enough to hold any individual strip of - * raw data. - */ -int -TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size) -{ - static const char module[] = "TIFFReadBufferSetup"; - - assert((tif->tif_flags&TIFF_NOREADRAW)==0); - tif->tif_flags &= ~TIFF_BUFFERMMAP; - - if (tif->tif_rawdata) { - if (tif->tif_flags & TIFF_MYBUFFER) - _TIFFfree(tif->tif_rawdata); - tif->tif_rawdata = NULL; - tif->tif_rawdatasize = 0; - } - if (bp) { - tif->tif_rawdatasize = size; - tif->tif_rawdata = (uint8*) bp; - tif->tif_flags &= ~TIFF_MYBUFFER; - } else { - tif->tif_rawdatasize = (tmsize_t)TIFFroundup_64((uint64)size, 1024); - if (tif->tif_rawdatasize==0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Invalid buffer size"); - return (0); - } - tif->tif_rawdata = (uint8*) _TIFFmalloc(tif->tif_rawdatasize); - tif->tif_flags |= TIFF_MYBUFFER; - } - if (tif->tif_rawdata == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, - "No space for data buffer at scanline %lu", - (unsigned long) tif->tif_row); - tif->tif_rawdatasize = 0; - return (0); - } - return (1); -} - -/* - * Set state to appear as if a - * strip has just been read in. - */ -static int -TIFFStartStrip(TIFF* tif, uint32 strip) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupdecode)(tif)) - return (0); - tif->tif_flags |= TIFF_CODERSETUP; - } - tif->tif_curstrip = strip; - tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - tif->tif_flags &= ~TIFF_BUF4WRITE; - - if (tif->tif_flags&TIFF_NOREADRAW) - { - tif->tif_rawcp = NULL; - tif->tif_rawcc = 0; - } - else - { - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_rawcc = (tmsize_t)td->td_stripbytecount[strip]; - } - return ((*tif->tif_predecode)(tif, - (uint16)(strip / td->td_stripsperimage))); -} - -/* - * Set state to appear as if a - * tile has just been read in. - */ -static int -TIFFStartTile(TIFF* tif, uint32 tile) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (!_TIFFFillStriles( tif ) || !tif->tif_dir.td_stripbytecount) - return 0; - - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupdecode)(tif)) - return (0); - tif->tif_flags |= TIFF_CODERSETUP; - } - tif->tif_curtile = tile; - tif->tif_row = - (tile % TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth)) * - td->td_tilelength; - tif->tif_col = - (tile % TIFFhowmany_32(td->td_imagelength, td->td_tilelength)) * - td->td_tilewidth; - tif->tif_flags &= ~TIFF_BUF4WRITE; - if (tif->tif_flags&TIFF_NOREADRAW) - { - tif->tif_rawcp = NULL; - tif->tif_rawcc = 0; - } - else - { - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_rawcc = (tmsize_t)td->td_stripbytecount[tile]; - } - return ((*tif->tif_predecode)(tif, - (uint16)(tile/td->td_stripsperimage))); -} - -static int -TIFFCheckRead(TIFF* tif, int tiles) -{ - if (tif->tif_mode == O_WRONLY) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "File not open for reading"); - return (0); - } - if (tiles ^ isTiled(tif)) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, tiles ? - "Can not read tiles from a stripped image" : - "Can not read scanlines from a tiled image"); - return (0); - } - return (1); -} - -void -_TIFFNoPostDecode(TIFF* tif, uint8* buf, tmsize_t cc) -{ - (void) tif; (void) buf; (void) cc; -} - -void -_TIFFSwab16BitData(TIFF* tif, uint8* buf, tmsize_t cc) -{ - (void) tif; - assert((cc & 1) == 0); - TIFFSwabArrayOfShort((uint16*) buf, cc/2); -} - -void -_TIFFSwab24BitData(TIFF* tif, uint8* buf, tmsize_t cc) -{ - (void) tif; - assert((cc % 3) == 0); - TIFFSwabArrayOfTriples((uint8*) buf, cc/3); -} - -void -_TIFFSwab32BitData(TIFF* tif, uint8* buf, tmsize_t cc) -{ - (void) tif; - assert((cc & 3) == 0); - TIFFSwabArrayOfLong((uint32*) buf, cc/4); -} - -void -_TIFFSwab64BitData(TIFF* tif, uint8* buf, tmsize_t cc) -{ - (void) tif; - assert((cc & 7) == 0); - TIFFSwabArrayOfDouble((double*) buf, cc/8); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_stream.cxx b/tiff/libtiff/tif_stream.cxx deleted file mode 100755 index da467cb..0000000 --- a/tiff/libtiff/tif_stream.cxx +++ /dev/null @@ -1,429 +0,0 @@ -/* $Id: tif_stream.cxx,v 1.12 2014-12-26 16:01:05 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1996 Sam Leffler - * Copyright (c) 1991-1996 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library UNIX-specific Routines. - */ -#include "tiffiop.h" -#include - -#ifndef __VMS -using namespace std; -#endif - -/* - ISO C++ uses a 'std::streamsize' type to define counts. This makes - it similar to, (but perhaps not the same as) size_t. - - The std::ios::pos_type is used to represent stream positions as used - by tellg(), tellp(), seekg(), and seekp(). This makes it similar to - (but perhaps not the same as) 'off_t'. The std::ios::streampos type - is used for character streams, but is documented to not be an - integral type anymore, so it should *not* be assigned to an integral - type. - - The std::ios::off_type is used to specify relative offsets needed by - the variants of seekg() and seekp() which accept a relative offset - argument. - - Useful prototype knowledge: - - Obtain read position - ios::pos_type basic_istream::tellg() - - Set read position - basic_istream& basic_istream::seekg(ios::pos_type) - basic_istream& basic_istream::seekg(ios::off_type, ios_base::seekdir) - - Read data - basic_istream& istream::read(char *str, streamsize count) - - Number of characters read in last unformatted read - streamsize istream::gcount(); - - Obtain write position - ios::pos_type basic_ostream::tellp() - - Set write position - basic_ostream& basic_ostream::seekp(ios::pos_type) - basic_ostream& basic_ostream::seekp(ios::off_type, ios_base::seekdir) - - Write data - basic_ostream& ostream::write(const char *str, streamsize count) -*/ - -struct tiffis_data; -struct tiffos_data; - -extern "C" { - - static tmsize_t _tiffosReadProc(thandle_t, void*, tmsize_t); - static tmsize_t _tiffisReadProc(thandle_t fd, void* buf, tmsize_t size); - static tmsize_t _tiffosWriteProc(thandle_t fd, void* buf, tmsize_t size); - static tmsize_t _tiffisWriteProc(thandle_t, void*, tmsize_t); - static uint64 _tiffosSeekProc(thandle_t fd, uint64 off, int whence); - static uint64 _tiffisSeekProc(thandle_t fd, uint64 off, int whence); - static uint64 _tiffosSizeProc(thandle_t fd); - static uint64 _tiffisSizeProc(thandle_t fd); - static int _tiffosCloseProc(thandle_t fd); - static int _tiffisCloseProc(thandle_t fd); - static int _tiffDummyMapProc(thandle_t , void** base, toff_t* size ); - static void _tiffDummyUnmapProc(thandle_t , void* base, toff_t size ); - static TIFF* _tiffStreamOpen(const char* name, const char* mode, void *fd); - -struct tiffis_data -{ - istream *stream; - ios::pos_type start_pos; -}; - -struct tiffos_data -{ - ostream *stream; - ios::pos_type start_pos; -}; - -static tmsize_t -_tiffosReadProc(thandle_t, void*, tmsize_t) -{ - return 0; -} - -static tmsize_t -_tiffisReadProc(thandle_t fd, void* buf, tmsize_t size) -{ - tiffis_data *data = reinterpret_cast(fd); - - // Verify that type does not overflow. - streamsize request_size = size; - if (static_cast(request_size) != size) - return static_cast(-1); - - data->stream->read((char *) buf, request_size); - - return static_cast(data->stream->gcount()); -} - -static tmsize_t -_tiffosWriteProc(thandle_t fd, void* buf, tmsize_t size) -{ - tiffos_data *data = reinterpret_cast(fd); - ostream *os = data->stream; - ios::pos_type pos = os->tellp(); - - // Verify that type does not overflow. - streamsize request_size = size; - if (static_cast(request_size) != size) - return static_cast(-1); - - os->write(reinterpret_cast(buf), request_size); - - return static_cast(os->tellp() - pos); -} - -static tmsize_t -_tiffisWriteProc(thandle_t, void*, tmsize_t) -{ - return 0; -} - -static uint64 -_tiffosSeekProc(thandle_t fd, uint64 off, int whence) -{ - tiffos_data *data = reinterpret_cast(fd); - ostream *os = data->stream; - - // if the stream has already failed, don't do anything - if( os->fail() ) - return static_cast(-1); - - switch(whence) { - case SEEK_SET: - { - // Compute 64-bit offset - uint64 new_offset = static_cast(data->start_pos) + off; - - // Verify that value does not overflow - ios::off_type offset = static_cast(new_offset); - if (static_cast(offset) != new_offset) - return static_cast(-1); - - os->seekp(offset, ios::beg); - break; - } - case SEEK_CUR: - { - // Verify that value does not overflow - ios::off_type offset = static_cast(off); - if (static_cast(offset) != off) - return static_cast(-1); - - os->seekp(offset, ios::cur); - break; - } - case SEEK_END: - { - // Verify that value does not overflow - ios::off_type offset = static_cast(off); - if (static_cast(offset) != off) - return static_cast(-1); - - os->seekp(offset, ios::end); - break; - } - } - - // Attempt to workaround problems with seeking past the end of the - // stream. ofstream doesn't have a problem with this but - // ostrstream/ostringstream does. In that situation, add intermediate - // '\0' characters. - if( os->fail() ) { -#ifdef __VMS - int old_state; -#else - ios::iostate old_state; -#endif - ios::pos_type origin; - - old_state = os->rdstate(); - // reset the fail bit or else tellp() won't work below - os->clear(os->rdstate() & ~ios::failbit); - switch( whence ) { - case SEEK_SET: - default: - origin = data->start_pos; - break; - case SEEK_CUR: - origin = os->tellp(); - break; - case SEEK_END: - os->seekp(0, ios::end); - origin = os->tellp(); - break; - } - // restore original stream state - os->clear(old_state); - - // only do something if desired seek position is valid - if( (static_cast(origin) + off) > static_cast(data->start_pos) ) { - uint64 num_fill; - - // clear the fail bit - os->clear(os->rdstate() & ~ios::failbit); - - // extend the stream to the expected size - os->seekp(0, ios::end); - num_fill = (static_cast(origin)) + off - os->tellp(); - for( uint64 i = 0; i < num_fill; i++ ) - os->put('\0'); - - // retry the seek - os->seekp(static_cast(static_cast(origin) + off), ios::beg); - } - } - - return static_cast(os->tellp()); -} - -static uint64 -_tiffisSeekProc(thandle_t fd, uint64 off, int whence) -{ - tiffis_data *data = reinterpret_cast(fd); - - switch(whence) { - case SEEK_SET: - { - // Compute 64-bit offset - uint64 new_offset = static_cast(data->start_pos) + off; - - // Verify that value does not overflow - ios::off_type offset = static_cast(new_offset); - if (static_cast(offset) != new_offset) - return static_cast(-1); - - data->stream->seekg(offset, ios::beg); - break; - } - case SEEK_CUR: - { - // Verify that value does not overflow - ios::off_type offset = static_cast(off); - if (static_cast(offset) != off) - return static_cast(-1); - - data->stream->seekg(offset, ios::cur); - break; - } - case SEEK_END: - { - // Verify that value does not overflow - ios::off_type offset = static_cast(off); - if (static_cast(offset) != off) - return static_cast(-1); - - data->stream->seekg(offset, ios::end); - break; - } - } - - return (uint64) (data->stream->tellg() - data->start_pos); -} - -static uint64 -_tiffosSizeProc(thandle_t fd) -{ - tiffos_data *data = reinterpret_cast(fd); - ostream *os = data->stream; - ios::pos_type pos = os->tellp(); - ios::pos_type len; - - os->seekp(0, ios::end); - len = os->tellp(); - os->seekp(pos); - - return (uint64) len; -} - -static uint64 -_tiffisSizeProc(thandle_t fd) -{ - tiffis_data *data = reinterpret_cast(fd); - ios::pos_type pos = data->stream->tellg(); - ios::pos_type len; - - data->stream->seekg(0, ios::end); - len = data->stream->tellg(); - data->stream->seekg(pos); - - return (uint64) len; -} - -static int -_tiffosCloseProc(thandle_t fd) -{ - // Our stream was not allocated by us, so it shouldn't be closed by us. - delete reinterpret_cast(fd); - return 0; -} - -static int -_tiffisCloseProc(thandle_t fd) -{ - // Our stream was not allocated by us, so it shouldn't be closed by us. - delete reinterpret_cast(fd); - return 0; -} - -static int -_tiffDummyMapProc(thandle_t , void** base, toff_t* size ) -{ - (void) base; - (void) size; - return (0); -} - -static void -_tiffDummyUnmapProc(thandle_t , void* base, toff_t size ) -{ - (void) base; - (void) size; -} - -/* - * Open a TIFF file descriptor for read/writing. - */ -static TIFF* -_tiffStreamOpen(const char* name, const char* mode, void *fd) -{ - TIFF* tif; - - if( strchr(mode, 'w') ) { - tiffos_data *data = new tiffos_data; - data->stream = reinterpret_cast(fd); - data->start_pos = data->stream->tellp(); - - // Open for writing. - tif = TIFFClientOpen(name, mode, - reinterpret_cast(data), - _tiffosReadProc, - _tiffosWriteProc, - _tiffosSeekProc, - _tiffosCloseProc, - _tiffosSizeProc, - _tiffDummyMapProc, - _tiffDummyUnmapProc); - } else { - tiffis_data *data = new tiffis_data; - data->stream = reinterpret_cast(fd); - data->start_pos = data->stream->tellg(); - // Open for reading. - tif = TIFFClientOpen(name, mode, - reinterpret_cast(data), - _tiffisReadProc, - _tiffisWriteProc, - _tiffisSeekProc, - _tiffisCloseProc, - _tiffisSizeProc, - _tiffDummyMapProc, - _tiffDummyUnmapProc); - } - - return (tif); -} - -} /* extern "C" */ - -TIFF* -TIFFStreamOpen(const char* name, ostream *os) -{ - // If os is either a ostrstream or ostringstream, and has no data - // written to it yet, then tellp() will return -1 which will break us. - // We workaround this by writing out a dummy character and - // then seek back to the beginning. - if( !os->fail() && static_cast(os->tellp()) < 0 ) { - *os << '\0'; - os->seekp(0); - } - - // NB: We don't support mapped files with streams so add 'm' - return _tiffStreamOpen(name, "wm", os); -} - -TIFF* -TIFFStreamOpen(const char* name, istream *is) -{ - // NB: We don't support mapped files with streams so add 'm' - return _tiffStreamOpen(name, "rm", is); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - Local Variables: - mode: c - indent-tabs-mode: true - c-basic-offset: 8 - End: -*/ diff --git a/tiff/libtiff/tif_strip.c b/tiff/libtiff/tif_strip.c deleted file mode 100755 index 568e489..0000000 --- a/tiff/libtiff/tif_strip.c +++ /dev/null @@ -1,383 +0,0 @@ -/* $Id: tif_strip.c,v 1.35 2012-06-06 05:33:55 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Strip-organized Image Support Routines. - */ -#include "tiffiop.h" - -/* - * Compute which strip a (row,sample) value is in. - */ -uint32 -TIFFComputeStrip(TIFF* tif, uint32 row, uint16 sample) -{ - static const char module[] = "TIFFComputeStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint32 strip; - - strip = row / td->td_rowsperstrip; - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - if (sample >= td->td_samplesperpixel) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Sample out of range, max %lu", - (unsigned long) sample, (unsigned long) td->td_samplesperpixel); - return (0); - } - strip += (uint32)sample*td->td_stripsperimage; - } - return (strip); -} - -/* - * Compute how many strips are in an image. - */ -uint32 -TIFFNumberOfStrips(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - uint32 nstrips; - - nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 : - TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip)); - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - nstrips = _TIFFMultiply32(tif, nstrips, (uint32)td->td_samplesperpixel, - "TIFFNumberOfStrips"); - return (nstrips); -} - -/* - * Compute the # bytes in a variable height, row-aligned strip. - */ -uint64 -TIFFVStripSize64(TIFF* tif, uint32 nrows) -{ - static const char module[] = "TIFFVStripSize64"; - TIFFDirectory *td = &tif->tif_dir; - if (nrows==(uint32)(-1)) - nrows=td->td_imagelength; - if ((td->td_planarconfig==PLANARCONFIG_CONTIG)&& - (td->td_photometric == PHOTOMETRIC_YCBCR)&& - (!isUpSampled(tif))) - { - /* - * Packed YCbCr data contain one Cb+Cr for every - * HorizontalSampling*VerticalSampling Y values. - * Must also roundup width and height when calculating - * since images that are not a multiple of the - * horizontal/vertical subsampling area include - * YCbCr data for the extended image. - */ - uint16 ycbcrsubsampling[2]; - uint16 samplingblock_samples; - uint32 samplingblocks_hor; - uint32 samplingblocks_ver; - uint64 samplingrow_samples; - uint64 samplingrow_size; - if(td->td_samplesperpixel!=3) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Invalid td_samplesperpixel value"); - return 0; - } - TIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING,ycbcrsubsampling+0, - ycbcrsubsampling+1); - if ((ycbcrsubsampling[0] != 1 && ycbcrsubsampling[0] != 2 && ycbcrsubsampling[0] != 4) - ||(ycbcrsubsampling[1] != 1 && ycbcrsubsampling[1] != 2 && ycbcrsubsampling[1] != 4)) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Invalid YCbCr subsampling (%dx%d)", - ycbcrsubsampling[0], - ycbcrsubsampling[1] ); - return 0; - } - samplingblock_samples=ycbcrsubsampling[0]*ycbcrsubsampling[1]+2; - samplingblocks_hor=TIFFhowmany_32(td->td_imagewidth,ycbcrsubsampling[0]); - samplingblocks_ver=TIFFhowmany_32(nrows,ycbcrsubsampling[1]); - samplingrow_samples=_TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module); - samplingrow_size=TIFFhowmany8_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module)); - return(_TIFFMultiply64(tif,samplingrow_size,samplingblocks_ver,module)); - } - else - return(_TIFFMultiply64(tif,nrows,TIFFScanlineSize64(tif),module)); -} -tmsize_t -TIFFVStripSize(TIFF* tif, uint32 nrows) -{ - static const char module[] = "TIFFVStripSize"; - uint64 m; - tmsize_t n; - m=TIFFVStripSize64(tif,nrows); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - return(n); -} - -/* - * Compute the # bytes in a raw strip. - */ -uint64 -TIFFRawStripSize64(TIFF* tif, uint32 strip) -{ - static const char module[] = "TIFFRawStripSize64"; - TIFFDirectory* td = &tif->tif_dir; - uint64 bytecount = td->td_stripbytecount[strip]; - - if (bytecount == 0) - { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "%I64u: Invalid strip byte count, strip %lu", - (unsigned __int64) bytecount, - (unsigned long) strip); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "%llu: Invalid strip byte count, strip %lu", - (unsigned long long) bytecount, - (unsigned long) strip); -#endif - bytecount = (uint64) -1; - } - - return bytecount; -} -tmsize_t -TIFFRawStripSize(TIFF* tif, uint32 strip) -{ - static const char module[] = "TIFFRawStripSize"; - uint64 m; - tmsize_t n; - m=TIFFRawStripSize64(tif,strip); - if (m==(uint64)(-1)) - n=(tmsize_t)(-1); - else - { - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - } - return(n); -} - -/* - * Compute the # bytes in a (row-aligned) strip. - * - * Note that if RowsPerStrip is larger than the - * recorded ImageLength, then the strip size is - * truncated to reflect the actual space required - * to hold the strip. - */ -uint64 -TIFFStripSize64(TIFF* tif) -{ - TIFFDirectory* td = &tif->tif_dir; - uint32 rps = td->td_rowsperstrip; - if (rps > td->td_imagelength) - rps = td->td_imagelength; - return (TIFFVStripSize64(tif, rps)); -} -tmsize_t -TIFFStripSize(TIFF* tif) -{ - static const char module[] = "TIFFStripSize"; - uint64 m; - tmsize_t n; - m=TIFFStripSize64(tif); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - return(n); -} - -/* - * Compute a default strip size based on the image - * characteristics and a requested value. If the - * request is <1 then we choose a strip size according - * to certain heuristics. - */ -uint32 -TIFFDefaultStripSize(TIFF* tif, uint32 request) -{ - return (*tif->tif_defstripsize)(tif, request); -} - -uint32 -_TIFFDefaultStripSize(TIFF* tif, uint32 s) -{ - if ((int32) s < 1) { - /* - * If RowsPerStrip is unspecified, try to break the - * image up into strips that are approximately - * STRIP_SIZE_DEFAULT bytes long. - */ - uint64 scanlinesize; - uint64 rows; - scanlinesize=TIFFScanlineSize64(tif); - if (scanlinesize==0) - scanlinesize=1; - rows=(uint64)STRIP_SIZE_DEFAULT/scanlinesize; - if (rows==0) - rows=1; - else if (rows>0xFFFFFFFF) - rows=0xFFFFFFFF; - s=(uint32)rows; - } - return (s); -} - -/* - * Return the number of bytes to read/write in a call to - * one of the scanline-oriented i/o routines. Note that - * this number may be 1/samples-per-pixel if data is - * stored as separate planes. - * The ScanlineSize in case of YCbCrSubsampling is defined as the - * strip size divided by the strip height, i.e. the size of a pack of vertical - * subsampling lines divided by vertical subsampling. It should thus make - * sense when multiplied by a multiple of vertical subsampling. - */ -uint64 -TIFFScanlineSize64(TIFF* tif) -{ - static const char module[] = "TIFFScanlineSize64"; - TIFFDirectory *td = &tif->tif_dir; - uint64 scanline_size; - if (td->td_planarconfig==PLANARCONFIG_CONTIG) - { - if ((td->td_photometric==PHOTOMETRIC_YCBCR)&& - (td->td_samplesperpixel==3)&& - (!isUpSampled(tif))) - { - uint16 ycbcrsubsampling[2]; - uint16 samplingblock_samples; - uint32 samplingblocks_hor; - uint64 samplingrow_samples; - uint64 samplingrow_size; - if(td->td_samplesperpixel!=3) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Invalid td_samplesperpixel value"); - return 0; - } - TIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING, - ycbcrsubsampling+0, - ycbcrsubsampling+1); - if (((ycbcrsubsampling[0]!=1)&&(ycbcrsubsampling[0]!=2)&&(ycbcrsubsampling[0]!=4)) || - ((ycbcrsubsampling[1]!=1)&&(ycbcrsubsampling[1]!=2)&&(ycbcrsubsampling[1]!=4))) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Invalid YCbCr subsampling"); - return 0; - } - samplingblock_samples = ycbcrsubsampling[0]*ycbcrsubsampling[1]+2; - samplingblocks_hor = TIFFhowmany_32(td->td_imagewidth,ycbcrsubsampling[0]); - samplingrow_samples = _TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module); - samplingrow_size = TIFFhowmany_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module),8); - scanline_size = (samplingrow_size/ycbcrsubsampling[1]); - } - else - { - uint64 scanline_samples; - scanline_samples=_TIFFMultiply64(tif,td->td_imagewidth,td->td_samplesperpixel,module); - scanline_size=TIFFhowmany_64(_TIFFMultiply64(tif,scanline_samples,td->td_bitspersample,module),8); - } - } - else - scanline_size=TIFFhowmany_64(_TIFFMultiply64(tif,td->td_imagewidth,td->td_bitspersample,module),8); - return(scanline_size); -} -tmsize_t -TIFFScanlineSize(TIFF* tif) -{ - static const char module[] = "TIFFScanlineSize"; - uint64 m; - tmsize_t n; - m=TIFFScanlineSize64(tif); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer arithmetic overflow"); - n=0; - } - return(n); -} - -/* - * Return the number of bytes required to store a complete - * decoded and packed raster scanline (as opposed to the - * I/O size returned by TIFFScanlineSize which may be less - * if data is store as separate planes). - */ -uint64 -TIFFRasterScanlineSize64(TIFF* tif) -{ - static const char module[] = "TIFFRasterScanlineSize64"; - TIFFDirectory *td = &tif->tif_dir; - uint64 scanline; - - scanline = _TIFFMultiply64(tif, td->td_bitspersample, td->td_imagewidth, module); - if (td->td_planarconfig == PLANARCONFIG_CONTIG) { - scanline = _TIFFMultiply64(tif, scanline, td->td_samplesperpixel, module); - return (TIFFhowmany8_64(scanline)); - } else - return (_TIFFMultiply64(tif, TIFFhowmany8_64(scanline), - td->td_samplesperpixel, module)); -} -tmsize_t -TIFFRasterScanlineSize(TIFF* tif) -{ - static const char module[] = "TIFFRasterScanlineSize"; - uint64 m; - tmsize_t n; - m=TIFFRasterScanlineSize64(tif); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer arithmetic overflow"); - n=0; - } - return(n); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_swab.c b/tiff/libtiff/tif_swab.c deleted file mode 100755 index f37e33f..0000000 --- a/tiff/libtiff/tif_swab.c +++ /dev/null @@ -1,310 +0,0 @@ -/* $Id: tif_swab.c,v 1.13 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library Bit & Byte Swapping Support. - * - * XXX We assume short = 16-bits and long = 32-bits XXX - */ -#include "tiffiop.h" - -#ifndef TIFFSwabShort -void -TIFFSwabShort(uint16* wp) -{ - register unsigned char* cp = (unsigned char*) wp; - unsigned char t; - assert(sizeof(uint16)==2); - t = cp[1]; cp[1] = cp[0]; cp[0] = t; -} -#endif - -#ifndef TIFFSwabLong -void -TIFFSwabLong(uint32* lp) -{ - register unsigned char* cp = (unsigned char*) lp; - unsigned char t; - assert(sizeof(uint32)==4); - t = cp[3]; cp[3] = cp[0]; cp[0] = t; - t = cp[2]; cp[2] = cp[1]; cp[1] = t; -} -#endif - -#ifndef TIFFSwabLong8 -void -TIFFSwabLong8(uint64* lp) -{ - register unsigned char* cp = (unsigned char*) lp; - unsigned char t; - assert(sizeof(uint64)==8); - t = cp[7]; cp[7] = cp[0]; cp[0] = t; - t = cp[6]; cp[6] = cp[1]; cp[1] = t; - t = cp[5]; cp[5] = cp[2]; cp[2] = t; - t = cp[4]; cp[4] = cp[3]; cp[3] = t; -} -#endif - -#ifndef TIFFSwabArrayOfShort -void -TIFFSwabArrayOfShort(register uint16* wp, tmsize_t n) -{ - register unsigned char* cp; - register unsigned char t; - assert(sizeof(uint16)==2); - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char*) wp; - t = cp[1]; cp[1] = cp[0]; cp[0] = t; - wp++; - } -} -#endif - -#ifndef TIFFSwabArrayOfTriples -void -TIFFSwabArrayOfTriples(register uint8* tp, tmsize_t n) -{ - unsigned char* cp; - unsigned char t; - - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char*) tp; - t = cp[2]; cp[2] = cp[0]; cp[0] = t; - tp += 3; - } -} -#endif - -#ifndef TIFFSwabArrayOfLong -void -TIFFSwabArrayOfLong(register uint32* lp, tmsize_t n) -{ - register unsigned char *cp; - register unsigned char t; - assert(sizeof(uint32)==4); - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char *)lp; - t = cp[3]; cp[3] = cp[0]; cp[0] = t; - t = cp[2]; cp[2] = cp[1]; cp[1] = t; - lp++; - } -} -#endif - -#ifndef TIFFSwabArrayOfLong8 -void -TIFFSwabArrayOfLong8(register uint64* lp, tmsize_t n) -{ - register unsigned char *cp; - register unsigned char t; - assert(sizeof(uint64)==8); - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char *)lp; - t = cp[7]; cp[7] = cp[0]; cp[0] = t; - t = cp[6]; cp[6] = cp[1]; cp[1] = t; - t = cp[5]; cp[5] = cp[2]; cp[2] = t; - t = cp[4]; cp[4] = cp[3]; cp[3] = t; - lp++; - } -} -#endif - -#ifndef TIFFSwabFloat -void -TIFFSwabFloat(float* fp) -{ - register unsigned char* cp = (unsigned char*) fp; - unsigned char t; - assert(sizeof(float)==4); - t = cp[3]; cp[3] = cp[0]; cp[0] = t; - t = cp[2]; cp[2] = cp[1]; cp[1] = t; -} -#endif - -#ifndef TIFFSwabArrayOfFloat -void -TIFFSwabArrayOfFloat(register float* fp, tmsize_t n) -{ - register unsigned char *cp; - register unsigned char t; - assert(sizeof(float)==4); - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char *)fp; - t = cp[3]; cp[3] = cp[0]; cp[0] = t; - t = cp[2]; cp[2] = cp[1]; cp[1] = t; - fp++; - } -} -#endif - -#ifndef TIFFSwabDouble -void -TIFFSwabDouble(double *dp) -{ - register unsigned char* cp = (unsigned char*) dp; - unsigned char t; - assert(sizeof(double)==8); - t = cp[7]; cp[7] = cp[0]; cp[0] = t; - t = cp[6]; cp[6] = cp[1]; cp[1] = t; - t = cp[5]; cp[5] = cp[2]; cp[2] = t; - t = cp[4]; cp[4] = cp[3]; cp[3] = t; -} -#endif - -#ifndef TIFFSwabArrayOfDouble -void -TIFFSwabArrayOfDouble(double* dp, tmsize_t n) -{ - register unsigned char *cp; - register unsigned char t; - assert(sizeof(double)==8); - /* XXX unroll loop some */ - while (n-- > 0) { - cp = (unsigned char *)dp; - t = cp[7]; cp[7] = cp[0]; cp[0] = t; - t = cp[6]; cp[6] = cp[1]; cp[1] = t; - t = cp[5]; cp[5] = cp[2]; cp[2] = t; - t = cp[4]; cp[4] = cp[3]; cp[3] = t; - dp++; - } -} -#endif - -/* - * Bit reversal tables. TIFFBitRevTable[] gives - * the bit reversed value of . Used in various - * places in the library when the FillOrder requires - * bit reversal of byte values (e.g. CCITT Fax 3 - * encoding/decoding). TIFFNoBitRevTable is provided - * for algorithms that want an equivalent table that - * do not reverse bit values. - */ -static const unsigned char TIFFBitRevTable[256] = { - 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, - 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, - 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, - 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, - 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, - 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, - 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, - 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, - 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, - 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, - 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, - 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, - 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, - 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, - 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, - 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, - 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, - 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, - 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, - 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, - 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, - 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, - 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, - 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, - 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, - 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, - 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, - 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, - 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, - 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, - 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, - 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff -}; -static const unsigned char TIFFNoBitRevTable[256] = { - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, - 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, - 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, - 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, - 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, - 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, - 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, - 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, - 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, - 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, - 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, - 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, - 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, - 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, - 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, - 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, - 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, - 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, - 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, - 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, - 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, - 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, - 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, - 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, - 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, - 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, - 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, - 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, -}; - -const unsigned char* -TIFFGetBitRevTable(int reversed) -{ - return (reversed ? TIFFBitRevTable : TIFFNoBitRevTable); -} - -void -TIFFReverseBits(uint8* cp, tmsize_t n) -{ - for (; n > 8; n -= 8) { - cp[0] = TIFFBitRevTable[cp[0]]; - cp[1] = TIFFBitRevTable[cp[1]]; - cp[2] = TIFFBitRevTable[cp[2]]; - cp[3] = TIFFBitRevTable[cp[3]]; - cp[4] = TIFFBitRevTable[cp[4]]; - cp[5] = TIFFBitRevTable[cp[5]]; - cp[6] = TIFFBitRevTable[cp[6]]; - cp[7] = TIFFBitRevTable[cp[7]]; - cp += 8; - } - while (n-- > 0) - *cp = TIFFBitRevTable[*cp], cp++; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_thunder.c b/tiff/libtiff/tif_thunder.c deleted file mode 100755 index 390891c..0000000 --- a/tiff/libtiff/tif_thunder.c +++ /dev/null @@ -1,207 +0,0 @@ -/* $Id: tif_thunder.c,v 1.12 2011-04-02 20:54:09 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#include -#ifdef THUNDER_SUPPORT -/* - * TIFF Library. - * - * ThunderScan 4-bit Compression Algorithm Support - */ - -/* - * ThunderScan uses an encoding scheme designed for - * 4-bit pixel values. Data is encoded in bytes, with - * each byte split into a 2-bit code word and a 6-bit - * data value. The encoding gives raw data, runs of - * pixels, or pixel values encoded as a delta from the - * previous pixel value. For the latter, either 2-bit - * or 3-bit delta values are used, with the deltas packed - * into a single byte. - */ -#define THUNDER_DATA 0x3f /* mask for 6-bit data */ -#define THUNDER_CODE 0xc0 /* mask for 2-bit code word */ -/* code values */ -#define THUNDER_RUN 0x00 /* run of pixels w/ encoded count */ -#define THUNDER_2BITDELTAS 0x40 /* 3 pixels w/ encoded 2-bit deltas */ -#define DELTA2_SKIP 2 /* skip code for 2-bit deltas */ -#define THUNDER_3BITDELTAS 0x80 /* 2 pixels w/ encoded 3-bit deltas */ -#define DELTA3_SKIP 4 /* skip code for 3-bit deltas */ -#define THUNDER_RAW 0xc0 /* raw data encoded */ - -static const int twobitdeltas[4] = { 0, 1, 0, -1 }; -static const int threebitdeltas[8] = { 0, 1, 2, 3, 0, -3, -2, -1 }; - -#define SETPIXEL(op, v) { \ - lastpixel = (v) & 0xf; \ - if ( npixels < maxpixels ) \ - { \ - if (npixels++ & 1) \ - *op++ |= lastpixel; \ - else \ - op[0] = (uint8) (lastpixel << 4); \ - } \ -} - -static int -ThunderSetupDecode(TIFF* tif) -{ - static const char module[] = "ThunderSetupDecode"; - - if( tif->tif_dir.td_bitspersample != 4 ) - { - TIFFErrorExt(tif->tif_clientdata, module, - "Wrong bitspersample value (%d), Thunder decoder only supports 4bits per sample.", - (int) tif->tif_dir.td_bitspersample ); - return 0; - } - - - return (1); -} - -static int -ThunderDecode(TIFF* tif, uint8* op, tmsize_t maxpixels) -{ - static const char module[] = "ThunderDecode"; - register unsigned char *bp; - register tmsize_t cc; - unsigned int lastpixel; - tmsize_t npixels; - - bp = (unsigned char *)tif->tif_rawcp; - cc = tif->tif_rawcc; - lastpixel = 0; - npixels = 0; - while (cc > 0 && npixels < maxpixels) { - int n, delta; - - n = *bp++, cc--; - switch (n & THUNDER_CODE) { - case THUNDER_RUN: /* pixel run */ - /* - * Replicate the last pixel n times, - * where n is the lower-order 6 bits. - */ - if (npixels & 1) { - op[0] |= lastpixel; - lastpixel = *op++; npixels++; n--; - } else - lastpixel |= lastpixel << 4; - npixels += n; - if (npixels < maxpixels) { - for (; n > 0; n -= 2) - *op++ = (uint8) lastpixel; - } - if (n == -1) - *--op &= 0xf0; - lastpixel &= 0xf; - break; - case THUNDER_2BITDELTAS: /* 2-bit deltas */ - if ((delta = ((n >> 4) & 3)) != DELTA2_SKIP) - SETPIXEL(op, lastpixel + twobitdeltas[delta]); - if ((delta = ((n >> 2) & 3)) != DELTA2_SKIP) - SETPIXEL(op, lastpixel + twobitdeltas[delta]); - if ((delta = (n & 3)) != DELTA2_SKIP) - SETPIXEL(op, lastpixel + twobitdeltas[delta]); - break; - case THUNDER_3BITDELTAS: /* 3-bit deltas */ - if ((delta = ((n >> 3) & 7)) != DELTA3_SKIP) - SETPIXEL(op, lastpixel + threebitdeltas[delta]); - if ((delta = (n & 7)) != DELTA3_SKIP) - SETPIXEL(op, lastpixel + threebitdeltas[delta]); - break; - case THUNDER_RAW: /* raw data */ - SETPIXEL(op, n); - break; - } - } - tif->tif_rawcp = (uint8*) bp; - tif->tif_rawcc = cc; - if (npixels != maxpixels) { -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - TIFFErrorExt(tif->tif_clientdata, module, - "%s data at scanline %lu (%I64u != %I64u)", - npixels < maxpixels ? "Not enough" : "Too much", - (unsigned long) tif->tif_row, - (unsigned __int64) npixels, - (unsigned __int64) maxpixels); -#else - TIFFErrorExt(tif->tif_clientdata, module, - "%s data at scanline %lu (%llu != %llu)", - npixels < maxpixels ? "Not enough" : "Too much", - (unsigned long) tif->tif_row, - (unsigned long long) npixels, - (unsigned long long) maxpixels); -#endif - return (0); - } - - return (1); -} - -static int -ThunderDecodeRow(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s) -{ - static const char module[] = "ThunderDecodeRow"; - uint8* row = buf; - - (void) s; - if (occ % tif->tif_scanlinesize) - { - TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read"); - return (0); - } - while (occ > 0) { - if (!ThunderDecode(tif, row, tif->tif_dir.td_imagewidth)) - return (0); - occ -= tif->tif_scanlinesize; - row += tif->tif_scanlinesize; - } - return (1); -} - -int -TIFFInitThunderScan(TIFF* tif, int scheme) -{ - (void) scheme; - - tif->tif_setupdecode = ThunderSetupDecode; - tif->tif_decoderow = ThunderDecodeRow; - tif->tif_decodestrip = ThunderDecodeRow; - return (1); -} -#endif /* THUNDER_SUPPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_tile.c b/tiff/libtiff/tif_tile.c deleted file mode 100755 index 0ff7e85..0000000 --- a/tiff/libtiff/tif_tile.c +++ /dev/null @@ -1,299 +0,0 @@ -/* $Id: tif_tile.c,v 1.23 2012-06-06 05:33:55 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Tiled Image Support Routines. - */ -#include "tiffiop.h" - -/* - * Compute which tile an (x,y,z,s) value is in. - */ -uint32 -TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s) -{ - TIFFDirectory *td = &tif->tif_dir; - uint32 dx = td->td_tilewidth; - uint32 dy = td->td_tilelength; - uint32 dz = td->td_tiledepth; - uint32 tile = 1; - - if (td->td_imagedepth == 1) - z = 0; - if (dx == (uint32) -1) - dx = td->td_imagewidth; - if (dy == (uint32) -1) - dy = td->td_imagelength; - if (dz == (uint32) -1) - dz = td->td_imagedepth; - if (dx != 0 && dy != 0 && dz != 0) { - uint32 xpt = TIFFhowmany_32(td->td_imagewidth, dx); - uint32 ypt = TIFFhowmany_32(td->td_imagelength, dy); - uint32 zpt = TIFFhowmany_32(td->td_imagedepth, dz); - - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - tile = (xpt*ypt*zpt)*s + - (xpt*ypt)*(z/dz) + - xpt*(y/dy) + - x/dx; - else - tile = (xpt*ypt)*(z/dz) + xpt*(y/dy) + x/dx; - } - return (tile); -} - -/* - * Check an (x,y,z,s) coordinate - * against the image bounds. - */ -int -TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s) -{ - TIFFDirectory *td = &tif->tif_dir; - - if (x >= td->td_imagewidth) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Col out of range, max %lu", - (unsigned long) x, - (unsigned long) (td->td_imagewidth - 1)); - return (0); - } - if (y >= td->td_imagelength) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Row out of range, max %lu", - (unsigned long) y, - (unsigned long) (td->td_imagelength - 1)); - return (0); - } - if (z >= td->td_imagedepth) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Depth out of range, max %lu", - (unsigned long) z, - (unsigned long) (td->td_imagedepth - 1)); - return (0); - } - if (td->td_planarconfig == PLANARCONFIG_SEPARATE && - s >= td->td_samplesperpixel) { - TIFFErrorExt(tif->tif_clientdata, tif->tif_name, - "%lu: Sample out of range, max %lu", - (unsigned long) s, - (unsigned long) (td->td_samplesperpixel - 1)); - return (0); - } - return (1); -} - -/* - * Compute how many tiles are in an image. - */ -uint32 -TIFFNumberOfTiles(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - uint32 dx = td->td_tilewidth; - uint32 dy = td->td_tilelength; - uint32 dz = td->td_tiledepth; - uint32 ntiles; - - if (dx == (uint32) -1) - dx = td->td_imagewidth; - if (dy == (uint32) -1) - dy = td->td_imagelength; - if (dz == (uint32) -1) - dz = td->td_imagedepth; - ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 : - _TIFFMultiply32(tif, _TIFFMultiply32(tif, TIFFhowmany_32(td->td_imagewidth, dx), - TIFFhowmany_32(td->td_imagelength, dy), - "TIFFNumberOfTiles"), - TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles"); - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - ntiles = _TIFFMultiply32(tif, ntiles, td->td_samplesperpixel, - "TIFFNumberOfTiles"); - return (ntiles); -} - -/* - * Compute the # bytes in each row of a tile. - */ -uint64 -TIFFTileRowSize64(TIFF* tif) -{ - TIFFDirectory *td = &tif->tif_dir; - uint64 rowsize; - - if (td->td_tilelength == 0 || td->td_tilewidth == 0) - return (0); - rowsize = _TIFFMultiply64(tif, td->td_bitspersample, td->td_tilewidth, - "TIFFTileRowSize"); - if (td->td_planarconfig == PLANARCONFIG_CONTIG) - rowsize = _TIFFMultiply64(tif, rowsize, td->td_samplesperpixel, - "TIFFTileRowSize"); - return (TIFFhowmany8_64(rowsize)); -} -tmsize_t -TIFFTileRowSize(TIFF* tif) -{ - static const char module[] = "TIFFTileRowSize"; - uint64 m; - tmsize_t n; - m=TIFFTileRowSize64(tif); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - return(n); -} - -/* - * Compute the # bytes in a variable length, row-aligned tile. - */ -uint64 -TIFFVTileSize64(TIFF* tif, uint32 nrows) -{ - static const char module[] = "TIFFVTileSize64"; - TIFFDirectory *td = &tif->tif_dir; - if (td->td_tilelength == 0 || td->td_tilewidth == 0 || - td->td_tiledepth == 0) - return (0); - if ((td->td_planarconfig==PLANARCONFIG_CONTIG)&& - (td->td_photometric==PHOTOMETRIC_YCBCR)&& - (td->td_samplesperpixel==3)&& - (!isUpSampled(tif))) - { - /* - * Packed YCbCr data contain one Cb+Cr for every - * HorizontalSampling*VerticalSampling Y values. - * Must also roundup width and height when calculating - * since images that are not a multiple of the - * horizontal/vertical subsampling area include - * YCbCr data for the extended image. - */ - uint16 ycbcrsubsampling[2]; - uint16 samplingblock_samples; - uint32 samplingblocks_hor; - uint32 samplingblocks_ver; - uint64 samplingrow_samples; - uint64 samplingrow_size; - TIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING,ycbcrsubsampling+0, - ycbcrsubsampling+1); - if ((ycbcrsubsampling[0] != 1 && ycbcrsubsampling[0] != 2 && ycbcrsubsampling[0] != 4) - ||(ycbcrsubsampling[1] != 1 && ycbcrsubsampling[1] != 2 && ycbcrsubsampling[1] != 4)) - { - TIFFErrorExt(tif->tif_clientdata,module, - "Invalid YCbCr subsampling (%dx%d)", - ycbcrsubsampling[0], - ycbcrsubsampling[1] ); - return 0; - } - samplingblock_samples=ycbcrsubsampling[0]*ycbcrsubsampling[1]+2; - samplingblocks_hor=TIFFhowmany_32(td->td_tilewidth,ycbcrsubsampling[0]); - samplingblocks_ver=TIFFhowmany_32(nrows,ycbcrsubsampling[1]); - samplingrow_samples=_TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module); - samplingrow_size=TIFFhowmany8_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module)); - return(_TIFFMultiply64(tif,samplingrow_size,samplingblocks_ver,module)); - } - else - return(_TIFFMultiply64(tif,nrows,TIFFTileRowSize64(tif),module)); -} -tmsize_t -TIFFVTileSize(TIFF* tif, uint32 nrows) -{ - static const char module[] = "TIFFVTileSize"; - uint64 m; - tmsize_t n; - m=TIFFVTileSize64(tif,nrows); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - return(n); -} - -/* - * Compute the # bytes in a row-aligned tile. - */ -uint64 -TIFFTileSize64(TIFF* tif) -{ - return (TIFFVTileSize64(tif, tif->tif_dir.td_tilelength)); -} -tmsize_t -TIFFTileSize(TIFF* tif) -{ - static const char module[] = "TIFFTileSize"; - uint64 m; - tmsize_t n; - m=TIFFTileSize64(tif); - n=(tmsize_t)m; - if ((uint64)n!=m) - { - TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow"); - n=0; - } - return(n); -} - -/* - * Compute a default tile size based on the image - * characteristics and a requested value. If a - * request is <1 then we choose a size according - * to certain heuristics. - */ -void -TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) -{ - (*tif->tif_deftilesize)(tif, tw, th); -} - -void -_TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th) -{ - (void) tif; - if (*(int32*) tw < 1) - *tw = 256; - if (*(int32*) th < 1) - *th = 256; - /* roundup to a multiple of 16 per the spec */ - if (*tw & 0xf) - *tw = TIFFroundup_32(*tw, 16); - if (*th & 0xf) - *th = TIFFroundup_32(*th, 16); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_unix.c b/tiff/libtiff/tif_unix.c deleted file mode 100755 index d7e3ec7..0000000 --- a/tiff/libtiff/tif_unix.c +++ /dev/null @@ -1,325 +0,0 @@ -/* $Id: tif_unix.c,v 1.24 2012-11-18 17:51:52 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library UNIX-specific Routines. These are should also work with the - * Windows Common RunTime Library. - */ - -#include "tif_config.h" - -#ifdef HAVE_SYS_TYPES_H -# include -#endif - -#include - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#include "tiffiop.h" - -static tmsize_t -_tiffReadProc(thandle_t fd, void* buf, tmsize_t size) -{ - size_t size_io = (size_t) size; - if ((tmsize_t) size_io != size) - { - errno=EINVAL; - return (tmsize_t) -1; - } - return ((tmsize_t) read((int) fd, buf, size_io)); -} - -static tmsize_t -_tiffWriteProc(thandle_t fd, void* buf, tmsize_t size) -{ - size_t size_io = (size_t) size; - if ((tmsize_t) size_io != size) - { - errno=EINVAL; - return (tmsize_t) -1; - } - return ((tmsize_t) write((int) fd, buf, size_io)); -} - -static uint64 -_tiffSeekProc(thandle_t fd, uint64 off, int whence) -{ - off_t off_io = (off_t) off; - if ((uint64) off_io != off) - { - errno=EINVAL; - return (uint64) -1; /* this is really gross */ - } - return((uint64)lseek((int)fd,off_io,whence)); -} - -static int -_tiffCloseProc(thandle_t fd) -{ - return(close((int)fd)); -} - -static uint64 -_tiffSizeProc(thandle_t fd) -{ - struct stat sb; - if (fstat((int)fd,&sb)<0) - return(0); - else - return((uint64)sb.st_size); -} - -#ifdef HAVE_MMAP -#include - -static int -_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize) -{ - uint64 size64 = _tiffSizeProc(fd); - tmsize_t sizem = (tmsize_t)size64; - if ((uint64)sizem==size64) { - *pbase = (void*) - mmap(0, (size_t)sizem, PROT_READ, MAP_SHARED, (int) fd, 0); - if (*pbase != (void*) -1) { - *psize = (tmsize_t)sizem; - return (1); - } - } - return (0); -} - -static void -_tiffUnmapProc(thandle_t fd, void* base, toff_t size) -{ - (void) fd; - (void) munmap(base, (off_t) size); -} -#else /* !HAVE_MMAP */ -static int -_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize) -{ - (void) fd; (void) pbase; (void) psize; - return (0); -} - -static void -_tiffUnmapProc(thandle_t fd, void* base, toff_t size) -{ - (void) fd; (void) base; (void) size; -} -#endif /* !HAVE_MMAP */ - -/* - * Open a TIFF file descriptor for read/writing. - */ -TIFF* -TIFFFdOpen(int fd, const char* name, const char* mode) -{ - TIFF* tif; - - tif = TIFFClientOpen(name, mode, - (thandle_t) fd, - _tiffReadProc, _tiffWriteProc, - _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, - _tiffMapProc, _tiffUnmapProc); - if (tif) - tif->tif_fd = fd; - return (tif); -} - -/* - * Open a TIFF file for read/writing. - */ -TIFF* -TIFFOpen(const char* name, const char* mode) -{ - static const char module[] = "TIFFOpen"; - int m, fd; - TIFF* tif; - - m = _TIFFgetMode(mode, module); - if (m == -1) - return ((TIFF*)0); - -/* for cygwin and mingw */ -#ifdef O_BINARY - m |= O_BINARY; -#endif - - fd = open(name, m, 0666); - if (fd < 0) { - if (errno > 0 && strerror(errno) != NULL ) { - TIFFErrorExt(0, module, "%s: %s", name, strerror(errno) ); - } else { - TIFFErrorExt(0, module, "%s: Cannot open", name); - } - return ((TIFF *)0); - } - - tif = TIFFFdOpen((int)fd, name, mode); - if(!tif) - close(fd); - return tif; -} - -#ifdef __WIN32__ -#include -/* - * Open a TIFF file with a Unicode filename, for read/writing. - */ -TIFF* -TIFFOpenW(const wchar_t* name, const char* mode) -{ - static const char module[] = "TIFFOpenW"; - int m, fd; - int mbsize; - char *mbname; - TIFF* tif; - - m = _TIFFgetMode(mode, module); - if (m == -1) - return ((TIFF*)0); - -/* for cygwin and mingw */ -#ifdef O_BINARY - m |= O_BINARY; -#endif - - fd = _wopen(name, m, 0666); - if (fd < 0) { - TIFFErrorExt(0, module, "%s: Cannot open", name); - return ((TIFF *)0); - } - - mbname = NULL; - mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL); - if (mbsize > 0) { - mbname = _TIFFmalloc(mbsize); - if (!mbname) { - TIFFErrorExt(0, module, - "Can't allocate space for filename conversion buffer"); - return ((TIFF*)0); - } - - WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize, - NULL, NULL); - } - - tif = TIFFFdOpen((int)fd, (mbname != NULL) ? mbname : "", - mode); - - _TIFFfree(mbname); - - if(!tif) - close(fd); - return tif; -} -#endif - -void* -_TIFFmalloc(tmsize_t s) -{ - if (s == 0) - return ((void *) NULL); - - return (malloc((size_t) s)); -} - -void -_TIFFfree(void* p) -{ - free(p); -} - -void* -_TIFFrealloc(void* p, tmsize_t s) -{ - return (realloc(p, (size_t) s)); -} - -void -_TIFFmemset(void* p, int v, tmsize_t c) -{ - memset(p, v, (size_t) c); -} - -void -_TIFFmemcpy(void* d, const void* s, tmsize_t c) -{ - memcpy(d, s, (size_t) c); -} - -int -_TIFFmemcmp(const void* p1, const void* p2, tmsize_t c) -{ - return (memcmp(p1, p2, (size_t) c)); -} - -static void -unixWarningHandler(const char* module, const char* fmt, va_list ap) -{ - if (module != NULL) - fprintf(stderr, "%s: ", module); - fprintf(stderr, "Warning, "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -} -TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler; - -static void -unixErrorHandler(const char* module, const char* fmt, va_list ap) -{ - if (module != NULL) - fprintf(stderr, "%s: ", module); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -} -TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler; - -/* vim: set ts=8 sts=8 sw=8 noet: */ - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_version.c b/tiff/libtiff/tif_version.c deleted file mode 100755 index f92c843..0000000 --- a/tiff/libtiff/tif_version.c +++ /dev/null @@ -1,40 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_version.c,v 1.3 2010-03-10 18:56:49 bfriesen Exp $ */ -/* - * Copyright (c) 1992-1997 Sam Leffler - * Copyright (c) 1992-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ -#include "tiffiop.h" - -static const char TIFFVersion[] = TIFFLIB_VERSION_STR; - -const char* -TIFFGetVersion(void) -{ - return (TIFFVersion); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_warning.c b/tiff/libtiff/tif_warning.c deleted file mode 100755 index 423b636..0000000 --- a/tiff/libtiff/tif_warning.c +++ /dev/null @@ -1,81 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_warning.c,v 1.3 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - */ -#include "tiffiop.h" - -TIFFErrorHandlerExt _TIFFwarningHandlerExt = NULL; - -TIFFErrorHandler -TIFFSetWarningHandler(TIFFErrorHandler handler) -{ - TIFFErrorHandler prev = _TIFFwarningHandler; - _TIFFwarningHandler = handler; - return (prev); -} - -TIFFErrorHandlerExt -TIFFSetWarningHandlerExt(TIFFErrorHandlerExt handler) -{ - TIFFErrorHandlerExt prev = _TIFFwarningHandlerExt; - _TIFFwarningHandlerExt = handler; - return (prev); -} - -void -TIFFWarning(const char* module, const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - if (_TIFFwarningHandler) - (*_TIFFwarningHandler)(module, fmt, ap); - if (_TIFFwarningHandlerExt) - (*_TIFFwarningHandlerExt)(0, module, fmt, ap); - va_end(ap); -} - -void -TIFFWarningExt(thandle_t fd, const char* module, const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - if (_TIFFwarningHandler) - (*_TIFFwarningHandler)(module, fmt, ap); - if (_TIFFwarningHandlerExt) - (*_TIFFwarningHandlerExt)(fd, module, fmt, ap); - va_end(ap); -} - - -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_win32.c b/tiff/libtiff/tif_win32.c deleted file mode 100755 index d2c3c5a..0000000 --- a/tiff/libtiff/tif_win32.c +++ /dev/null @@ -1,444 +0,0 @@ -/* $Id: tif_win32.c,v 1.40 2012-11-18 17:51:52 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library Win32-specific Routines. Adapted from tif_unix.c 4/5/95 by - * Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA - */ -#include "tiffiop.h" -#include "malloc.h" - -#include - -static tmsize_t -_tiffReadProc(tfd_t fd, void* buf, tmsize_t size) -{ - /* tmsize_t is 64bit on 64bit systems, but the WinAPI ReadFile takes - * 32bit sizes, so we loop through the data in suitable 32bit sized - * chunks */ - uint8* ma; - uint64 mb; - DWORD n; - DWORD o; - tmsize_t p; - ma=(uint8*)buf; - mb=size; - p=0; - while (mb>0) - { - n=0x80000000UL; - if ((uint64)n>mb) - n=(DWORD)mb; - if (!ReadFile(fd,(LPVOID)ma,n,&o,NULL)) - return(0); - ma+=o; - mb-=o; - p+=o; - if (o!=n) - break; - } - return(p); -} - -static tmsize_t -_tiffWriteProc(tfd_t fd, void* buf, tmsize_t size) -{ - /* tmsize_t is 64bit on 64bit systems, but the WinAPI WriteFile takes - * 32bit sizes, so we loop through the data in suitable 32bit sized - * chunks */ - uint8* ma; - uint64 mb; - DWORD n; - DWORD o; - tmsize_t p; - ma=(uint8*)buf; - mb=size; - p=0; - while (mb>0) - { - n=0x80000000UL; - if ((uint64)n>mb) - n=(DWORD)mb; - if (!WriteFile(fd,(LPVOID)ma,n,&o,NULL)) - return(0); - ma+=o; - mb-=o; - p+=o; - if (o!=n) - break; - } - return(p); -} - -static uint64 -_tiffSeekProc(tfd_t fd, uint64 off, int whence) -{ - LARGE_INTEGER offli; - DWORD dwMoveMethod; - offli.QuadPart = off; - switch(whence) - { - case SEEK_SET: - dwMoveMethod = FILE_BEGIN; - break; - case SEEK_CUR: - dwMoveMethod = FILE_CURRENT; - break; - case SEEK_END: - dwMoveMethod = FILE_END; - break; - default: - dwMoveMethod = FILE_BEGIN; - break; - } - offli.LowPart=SetFilePointer(fd,offli.LowPart,&offli.HighPart,dwMoveMethod); - if ((offli.LowPart==INVALID_SET_FILE_POINTER)&&(GetLastError()!=NO_ERROR)) - offli.QuadPart=0; - return(offli.QuadPart); -} - -static int -_tiffCloseProc(tfd_t fd) -{ - return (CloseHandle(fd) ? 0 : -1); -} - -static uint64 -_tiffSizeProc(tfd_t fd) -{ - ULARGE_INTEGER m; - m.LowPart=GetFileSize(fd,&m.HighPart); - return(m.QuadPart); -} - -static int -_tiffDummyMapProc(tfd_t fd, void** pbase, toff_t* psize) -{ - (void) fd; - (void) pbase; - (void) psize; - return (0); -} - -/* - * From "Hermann Josef Hill" : - * - * Windows uses both a handle and a pointer for file mapping, - * but according to the SDK documentation and Richter's book - * "Advanced Windows Programming" it is safe to free the handle - * after obtaining the file mapping pointer - * - * This removes a nasty OS dependency and cures a problem - * with Visual C++ 5.0 - */ -static int -_tiffMapProc(tfd_t fd, void** pbase, toff_t* psize) -{ - uint64 size; - tmsize_t sizem; - HANDLE hMapFile; - - size = _tiffSizeProc(fd); - sizem = (tmsize_t)size; - if ((uint64)sizem!=size) - return (0); - - /* By passing in 0 for the maximum file size, it specifies that we - create a file mapping object for the full file size. */ - hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, 0, NULL); - if (hMapFile == NULL) - return (0); - *pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0); - CloseHandle(hMapFile); - if (*pbase == NULL) - return (0); - *psize = size; - return(1); -} - -static void -_tiffDummyUnmapProc(tfd_t fd, void* base, toff_t size) -{ - (void) fd; - (void) base; - (void) size; -} - -static void -_tiffUnmapProc(tfd_t fd, void* base, toff_t size) -{ - (void) fd; - (void) size; - UnmapViewOfFile(base); -} - -/* - * Open a TIFF file descriptor for read/writing. - * Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode - * string, which forces the file to be opened unmapped. - */ -TIFF* -TIFFFdOpen(tfd_t ifd, const char* name, const char* mode) -{ - TIFF* tif; - int fSuppressMap; - int m; - fSuppressMap=0; - for (m=0; mode[m]!=0; m++) - { - if (mode[m]=='u') - { - fSuppressMap=1; - break; - } - } - tif = TIFFClientOpen(name, mode, ifd, - _tiffReadProc, _tiffWriteProc, - _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, - fSuppressMap ? _tiffDummyMapProc : _tiffMapProc, - fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc); - if (tif) - tif->tif_fd = ifd; - return (tif); -} - -#ifndef _WIN32_WCE - -/* - * Open a TIFF file for read/writing. - */ -TIFF* -TIFFOpen(const char* name, const char* mode) -{ - static const char module[] = "TIFFOpen"; - tfd_t fd; - int m; - DWORD dwMode; - TIFF* tif; - - m = _TIFFgetMode(mode, module); - - switch(m) { - case O_RDONLY: dwMode = OPEN_EXISTING; break; - case O_RDWR: dwMode = OPEN_ALWAYS; break; - case O_RDWR|O_CREAT: dwMode = OPEN_ALWAYS; break; - case O_RDWR|O_TRUNC: dwMode = CREATE_ALWAYS; break; - case O_RDWR|O_CREAT|O_TRUNC: dwMode = CREATE_ALWAYS; break; - default: return ((TIFF*)0); - } - - fd = CreateFileA(name, - (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ | GENERIC_WRITE), - FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode, - (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL, - NULL); - if (fd == INVALID_HANDLE_VALUE) { - TIFFErrorExt(0, module, "%s: Cannot open", name); - return ((TIFF *)0); - } - - tif = TIFFFdOpen(fd, name, mode); - if(!tif) - CloseHandle(fd); - return tif; -} - -/* - * Open a TIFF file with a Unicode filename, for read/writing. - */ -TIFF* -TIFFOpenW(const wchar_t* name, const char* mode) -{ - static const char module[] = "TIFFOpenW"; - tfd_t fd; - int m; - DWORD dwMode; - int mbsize; - char *mbname; - TIFF *tif; - - m = _TIFFgetMode(mode, module); - - switch(m) { - case O_RDONLY: dwMode = OPEN_EXISTING; break; - case O_RDWR: dwMode = OPEN_ALWAYS; break; - case O_RDWR|O_CREAT: dwMode = OPEN_ALWAYS; break; - case O_RDWR|O_TRUNC: dwMode = CREATE_ALWAYS; break; - case O_RDWR|O_CREAT|O_TRUNC: dwMode = CREATE_ALWAYS; break; - default: return ((TIFF*)0); - } - - fd = CreateFileW(name, - (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ|GENERIC_WRITE), - FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode, - (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL, - NULL); - if (fd == INVALID_HANDLE_VALUE) { - TIFFErrorExt(0, module, "%S: Cannot open", name); - return ((TIFF *)0); - } - - mbname = NULL; - mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL); - if (mbsize > 0) { - mbname = (char *)_TIFFmalloc(mbsize); - if (!mbname) { - TIFFErrorExt(0, module, - "Can't allocate space for filename conversion buffer"); - return ((TIFF*)0); - } - - WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize, - NULL, NULL); - } - - tif = TIFFFdOpen(fd, - (mbname != NULL) ? mbname : "", mode); - if(!tif) - CloseHandle(fd); - - _TIFFfree(mbname); - - return tif; -} - -#endif /* ndef _WIN32_WCE */ - -void* -_TIFFmalloc(tmsize_t s) -{ - if (s == 0) - return ((void *) NULL); - - return (malloc((size_t) s)); -} - -void -_TIFFfree(void* p) -{ - free(p); -} - -void* -_TIFFrealloc(void* p, tmsize_t s) -{ - return (realloc(p, (size_t) s)); -} - -void -_TIFFmemset(void* p, int v, tmsize_t c) -{ - memset(p, v, (size_t) c); -} - -void -_TIFFmemcpy(void* d, const void* s, tmsize_t c) -{ - memcpy(d, s, (size_t) c); -} - -int -_TIFFmemcmp(const void* p1, const void* p2, tmsize_t c) -{ - return (memcmp(p1, p2, (size_t) c)); -} - -#ifndef _WIN32_WCE - -#if (_MSC_VER < 1500) -# define vsnprintf _vsnprintf -#endif - -static void -Win32WarningHandler(const char* module, const char* fmt, va_list ap) -{ -#ifndef TIF_PLATFORM_CONSOLE - LPTSTR szTitle; - LPTSTR szTmp; - LPCTSTR szTitleText = "%s Warning"; - LPCTSTR szDefaultModule = "LIBTIFF"; - LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module; - SIZE_T nBufSize = (strlen(szTmpModule) + - strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char); - - if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL) - return; - sprintf(szTitle, szTitleText, szTmpModule); - szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char); - vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap); - MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION); - LocalFree(szTitle); - - return; -#else - if (module != NULL) - fprintf(stderr, "%s: ", module); - fprintf(stderr, "Warning, "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -#endif -} -TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler; - -static void -Win32ErrorHandler(const char* module, const char* fmt, va_list ap) -{ -#ifndef TIF_PLATFORM_CONSOLE - LPTSTR szTitle; - LPTSTR szTmp; - LPCTSTR szTitleText = "%s Error"; - LPCTSTR szDefaultModule = "LIBTIFF"; - LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module; - SIZE_T nBufSize = (strlen(szTmpModule) + - strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char); - - if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL) - return; - sprintf(szTitle, szTitleText, szTmpModule); - szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char); - vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap); - MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION); - LocalFree(szTitle); - return; -#else - if (module != NULL) - fprintf(stderr, "%s: ", module); - vfprintf(stderr, fmt, ap); - fprintf(stderr, ".\n"); -#endif -} -TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler; - -#endif /* ndef _WIN32_WCE */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_write.c b/tiff/libtiff/tif_write.c deleted file mode 100755 index cb610fc..0000000 --- a/tiff/libtiff/tif_write.c +++ /dev/null @@ -1,771 +0,0 @@ -/* $Id: tif_write.c,v 1.38 2013-01-18 21:57:12 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library. - * - * Scanline-oriented Write Support - */ -#include "tiffiop.h" -#include - -#define STRIPINCR 20 /* expansion factor on strip array */ - -#define WRITECHECKSTRIPS(tif, module) \ - (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),0,module)) -#define WRITECHECKTILES(tif, module) \ - (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),1,module)) -#define BUFFERCHECK(tif) \ - ((((tif)->tif_flags & TIFF_BUFFERSETUP) && tif->tif_rawdata) || \ - TIFFWriteBufferSetup((tif), NULL, (tmsize_t) -1)) - -static int TIFFGrowStrips(TIFF* tif, uint32 delta, const char* module); -static int TIFFAppendToStrip(TIFF* tif, uint32 strip, uint8* data, tmsize_t cc); - -int -TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample) -{ - static const char module[] = "TIFFWriteScanline"; - register TIFFDirectory *td; - int status, imagegrew = 0; - uint32 strip; - - if (!WRITECHECKSTRIPS(tif, module)) - return (-1); - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized more intelligently (using - * directory information). - */ - if (!BUFFERCHECK(tif)) - return (-1); - tif->tif_flags |= TIFF_BUF4WRITE; /* not strictly sure this is right*/ - - td = &tif->tif_dir; - /* - * Extend image length if needed - * (but only for PlanarConfig=1). - */ - if (row >= td->td_imagelength) { /* extend image */ - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not change \"ImageLength\" when using separate planes"); - return (-1); - } - td->td_imagelength = row+1; - imagegrew = 1; - } - /* - * Calculate strip and check for crossings. - */ - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - if (sample >= td->td_samplesperpixel) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Sample out of range, max %lu", - (unsigned long) sample, (unsigned long) td->td_samplesperpixel); - return (-1); - } - strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip; - } else - strip = row / td->td_rowsperstrip; - /* - * Check strip array to make sure there's space. We don't support - * dynamically growing files that have data organized in separate - * bitplanes because it's too painful. In that case we require that - * the imagelength be set properly before the first write (so that the - * strips array will be fully allocated above). - */ - if (strip >= td->td_nstrips && !TIFFGrowStrips(tif, 1, module)) - return (-1); - if (strip != tif->tif_curstrip) { - /* - * Changing strips -- flush any data present. - */ - if (!TIFFFlushData(tif)) - return (-1); - tif->tif_curstrip = strip; - /* - * Watch out for a growing image. The value of strips/image - * will initially be 1 (since it can't be deduced until the - * imagelength is known). - */ - if (strip >= td->td_stripsperimage && imagegrew) - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength,td->td_rowsperstrip); - tif->tif_row = - (strip % td->td_stripsperimage) * td->td_rowsperstrip; - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return (-1); - tif->tif_flags |= TIFF_CODERSETUP; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - if( td->td_stripbytecount[strip] > 0 ) - { - /* if we are writing over existing tiles, zero length */ - td->td_stripbytecount[strip] = 0; - - /* this forces TIFFAppendToStrip() to do a seek */ - tif->tif_curoff = 0; - } - - if (!(*tif->tif_preencode)(tif, sample)) - return (-1); - tif->tif_flags |= TIFF_POSTENCODE; - } - /* - * Ensure the write is either sequential or at the - * beginning of a strip (or that we can randomly - * access the data -- i.e. no encoding). - */ - if (row != tif->tif_row) { - if (row < tif->tif_row) { - /* - * Moving backwards within the same strip: - * backup to the start and then decode - * forward (below). - */ - tif->tif_row = (strip % td->td_stripsperimage) * - td->td_rowsperstrip; - tif->tif_rawcp = tif->tif_rawdata; - } - /* - * Seek forward to the desired row. - */ - if (!(*tif->tif_seek)(tif, row - tif->tif_row)) - return (-1); - tif->tif_row = row; - } - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) buf, tif->tif_scanlinesize ); - - status = (*tif->tif_encoderow)(tif, (uint8*) buf, - tif->tif_scanlinesize, sample); - - /* we are now poised at the beginning of the next row */ - tif->tif_row = row + 1; - return (status); -} - -/* - * Encode the supplied data and write it to the - * specified strip. - * - * NB: Image length must be setup before writing. - */ -tmsize_t -TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteEncodedStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint16 sample; - - if (!WRITECHECKSTRIPS(tif, module)) - return ((tmsize_t) -1); - /* - * Check strip array to make sure there's space. - * We don't support dynamically growing files that - * have data organized in separate bitplanes because - * it's too painful. In that case we require that - * the imagelength be set properly before the first - * write (so that the strips array will be fully - * allocated above). - */ - if (strip >= td->td_nstrips) { - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not grow image by strips when using separate planes"); - return ((tmsize_t) -1); - } - if (!TIFFGrowStrips(tif, 1, module)) - return ((tmsize_t) -1); - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip); - } - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized according to the directory - * info. - */ - if (!BUFFERCHECK(tif)) - return ((tmsize_t) -1); - - tif->tif_flags |= TIFF_BUF4WRITE; - tif->tif_curstrip = strip; - - tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return ((tmsize_t) -1); - tif->tif_flags |= TIFF_CODERSETUP; - } - - if( td->td_stripbytecount[strip] > 0 ) - { - /* Make sure that at the first attempt of rewriting the tile, we will have */ - /* more bytes available in the output buffer than the previous byte count, */ - /* so that TIFFAppendToStrip() will detect the overflow when it is called the first */ - /* time if the new compressed tile is bigger than the older one. (GDAL #4771) */ - if( tif->tif_rawdatasize <= (tmsize_t)td->td_stripbytecount[strip] ) - { - if( !(TIFFWriteBufferSetup(tif, NULL, - (tmsize_t)TIFFroundup_64((uint64)(td->td_stripbytecount[strip] + 1), 1024))) ) - return ((tmsize_t)(-1)); - } - - /* Force TIFFAppendToStrip() to consider placing data at end - of file. */ - tif->tif_curoff = 0; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - tif->tif_flags &= ~TIFF_POSTENCODE; - sample = (uint16)(strip / td->td_stripsperimage); - if (!(*tif->tif_preencode)(tif, sample)) - return ((tmsize_t) -1); - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) data, cc ); - - if (!(*tif->tif_encodestrip)(tif, (uint8*) data, cc, sample)) - return (0); - if (!(*tif->tif_postencode)(tif)) - return ((tmsize_t) -1); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc); - if (tif->tif_rawcc > 0 && - !TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc)) - return ((tmsize_t) -1); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - return (cc); -} - -/* - * Write the supplied data to the specified strip. - * - * NB: Image length must be setup before writing. - */ -tmsize_t -TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteRawStrip"; - TIFFDirectory *td = &tif->tif_dir; - - if (!WRITECHECKSTRIPS(tif, module)) - return ((tmsize_t) -1); - /* - * Check strip array to make sure there's space. - * We don't support dynamically growing files that - * have data organized in separate bitplanes because - * it's too painful. In that case we require that - * the imagelength be set properly before the first - * write (so that the strips array will be fully - * allocated above). - */ - if (strip >= td->td_nstrips) { - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not grow image by strips when using separate planes"); - return ((tmsize_t) -1); - } - /* - * Watch out for a growing image. The value of - * strips/image will initially be 1 (since it - * can't be deduced until the imagelength is known). - */ - if (strip >= td->td_stripsperimage) - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength,td->td_rowsperstrip); - if (!TIFFGrowStrips(tif, 1, module)) - return ((tmsize_t) -1); - } - tif->tif_curstrip = strip; - tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - return (TIFFAppendToStrip(tif, strip, (uint8*) data, cc) ? - cc : (tmsize_t) -1); -} - -/* - * Write and compress a tile of data. The - * tile is selected by the (x,y,z,s) coordinates. - */ -tmsize_t -TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s) -{ - if (!TIFFCheckTile(tif, x, y, z, s)) - return ((tmsize_t)(-1)); - /* - * NB: A tile size of -1 is used instead of tif_tilesize knowing - * that TIFFWriteEncodedTile will clamp this to the tile size. - * This is done because the tile size may not be defined until - * after the output buffer is setup in TIFFWriteBufferSetup. - */ - return (TIFFWriteEncodedTile(tif, - TIFFComputeTile(tif, x, y, z, s), buf, (tmsize_t)(-1))); -} - -/* - * Encode the supplied data and write it to the - * specified tile. There must be space for the - * data. The function clamps individual writes - * to a tile to the tile size, but does not (and - * can not) check that multiple writes to the same - * tile do not write more than tile size data. - * - * NB: Image length must be setup before writing; this - * interface does not support automatically growing - * the image on each write (as TIFFWriteScanline does). - */ -tmsize_t -TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteEncodedTile"; - TIFFDirectory *td; - uint16 sample; - - if (!WRITECHECKTILES(tif, module)) - return ((tmsize_t)(-1)); - td = &tif->tif_dir; - if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu", - (unsigned long) tile, (unsigned long) td->td_nstrips); - return ((tmsize_t)(-1)); - } - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized more intelligently (using - * directory information). - */ - if (!BUFFERCHECK(tif)) - return ((tmsize_t)(-1)); - - tif->tif_flags |= TIFF_BUF4WRITE; - tif->tif_curtile = tile; - - if( td->td_stripbytecount[tile] > 0 ) - { - /* Make sure that at the first attempt of rewriting the tile, we will have */ - /* more bytes available in the output buffer than the previous byte count, */ - /* so that TIFFAppendToStrip() will detect the overflow when it is called the first */ - /* time if the new compressed tile is bigger than the older one. (GDAL #4771) */ - if( tif->tif_rawdatasize <= (tmsize_t) td->td_stripbytecount[tile] ) - { - if( !(TIFFWriteBufferSetup(tif, NULL, - (tmsize_t)TIFFroundup_64((uint64)(td->td_stripbytecount[tile] + 1), 1024))) ) - return ((tmsize_t)(-1)); - } - - /* Force TIFFAppendToStrip() to consider placing data at end - of file. */ - tif->tif_curoff = 0; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - /* - * Compute tiles per row & per column to compute - * current row and column - */ - tif->tif_row = (tile % TIFFhowmany_32(td->td_imagelength, td->td_tilelength)) - * td->td_tilelength; - tif->tif_col = (tile % TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth)) - * td->td_tilewidth; - - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return ((tmsize_t)(-1)); - tif->tif_flags |= TIFF_CODERSETUP; - } - tif->tif_flags &= ~TIFF_POSTENCODE; - sample = (uint16)(tile/td->td_stripsperimage); - if (!(*tif->tif_preencode)(tif, sample)) - return ((tmsize_t)(-1)); - /* - * Clamp write amount to the tile size. This is mostly - * done so that callers can pass in some large number - * (e.g. -1) and have the tile size used instead. - */ - if ( cc < 1 || cc > tif->tif_tilesize) - cc = tif->tif_tilesize; - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) data, cc ); - - if (!(*tif->tif_encodetile)(tif, (uint8*) data, cc, sample)) - return (0); - if (!(*tif->tif_postencode)(tif)) - return ((tmsize_t)(-1)); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits((uint8*)tif->tif_rawdata, tif->tif_rawcc); - if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile, - tif->tif_rawdata, tif->tif_rawcc)) - return ((tmsize_t)(-1)); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - return (cc); -} - -/* - * Write the supplied data to the specified strip. - * There must be space for the data; we don't check - * if strips overlap! - * - * NB: Image length must be setup before writing; this - * interface does not support automatically growing - * the image on each write (as TIFFWriteScanline does). - */ -tmsize_t -TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteRawTile"; - - if (!WRITECHECKTILES(tif, module)) - return ((tmsize_t)(-1)); - if (tile >= tif->tif_dir.td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu", - (unsigned long) tile, - (unsigned long) tif->tif_dir.td_nstrips); - return ((tmsize_t)(-1)); - } - return (TIFFAppendToStrip(tif, tile, (uint8*) data, cc) ? - cc : (tmsize_t)(-1)); -} - -#define isUnspecified(tif, f) \ - (TIFFFieldSet(tif,f) && (tif)->tif_dir.td_imagelength == 0) - -int -TIFFSetupStrips(TIFF* tif) -{ - TIFFDirectory* td = &tif->tif_dir; - - if (isTiled(tif)) - td->td_stripsperimage = - isUnspecified(tif, FIELD_TILEDIMENSIONS) ? - td->td_samplesperpixel : TIFFNumberOfTiles(tif); - else - td->td_stripsperimage = - isUnspecified(tif, FIELD_ROWSPERSTRIP) ? - td->td_samplesperpixel : TIFFNumberOfStrips(tif); - td->td_nstrips = td->td_stripsperimage; - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - td->td_stripsperimage /= td->td_samplesperpixel; - td->td_stripoffset = (uint64 *) - _TIFFmalloc(td->td_nstrips * sizeof (uint64)); - td->td_stripbytecount = (uint64 *) - _TIFFmalloc(td->td_nstrips * sizeof (uint64)); - if (td->td_stripoffset == NULL || td->td_stripbytecount == NULL) - return (0); - /* - * Place data at the end-of-file - * (by setting offsets to zero). - */ - _TIFFmemset(td->td_stripoffset, 0, td->td_nstrips*sizeof (uint64)); - _TIFFmemset(td->td_stripbytecount, 0, td->td_nstrips*sizeof (uint64)); - TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); - TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); - return (1); -} -#undef isUnspecified - -/* - * Verify file is writable and that the directory - * information is setup properly. In doing the latter - * we also "freeze" the state of the directory so - * that important information is not changed. - */ -int -TIFFWriteCheck(TIFF* tif, int tiles, const char* module) -{ - if (tif->tif_mode == O_RDONLY) { - TIFFErrorExt(tif->tif_clientdata, module, "File not open for writing"); - return (0); - } - if (tiles ^ isTiled(tif)) { - TIFFErrorExt(tif->tif_clientdata, module, tiles ? - "Can not write tiles to a stripped image" : - "Can not write scanlines to a tiled image"); - return (0); - } - - _TIFFFillStriles( tif ); - - /* - * On the first write verify all the required information - * has been setup and initialize any data structures that - * had to wait until directory information was set. - * Note that a lot of our work is assumed to remain valid - * because we disallow any of the important parameters - * from changing after we start writing (i.e. once - * TIFF_BEENWRITING is set, TIFFSetField will only allow - * the image's length to be changed). - */ - if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Must set \"ImageWidth\" before writing data"); - return (0); - } - if (tif->tif_dir.td_samplesperpixel == 1) { - /* - * Planarconfiguration is irrelevant in case of single band - * images and need not be included. We will set it anyway, - * because this field is used in other parts of library even - * in the single band case. - */ - if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) - tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; - } else { - if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Must set \"PlanarConfiguration\" before writing data"); - return (0); - } - } - if (tif->tif_dir.td_stripoffset == NULL && !TIFFSetupStrips(tif)) { - tif->tif_dir.td_nstrips = 0; - TIFFErrorExt(tif->tif_clientdata, module, "No space for %s arrays", - isTiled(tif) ? "tile" : "strip"); - return (0); - } - if (isTiled(tif)) - { - tif->tif_tilesize = TIFFTileSize(tif); - if (tif->tif_tilesize == 0) - return (0); - } - else - tif->tif_tilesize = (tmsize_t)(-1); - tif->tif_scanlinesize = TIFFScanlineSize(tif); - if (tif->tif_scanlinesize == 0) - return (0); - tif->tif_flags |= TIFF_BEENWRITING; - return (1); -} - -/* - * Setup the raw data buffer used for encoding. - */ -int -TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size) -{ - static const char module[] = "TIFFWriteBufferSetup"; - - if (tif->tif_rawdata) { - if (tif->tif_flags & TIFF_MYBUFFER) { - _TIFFfree(tif->tif_rawdata); - tif->tif_flags &= ~TIFF_MYBUFFER; - } - tif->tif_rawdata = NULL; - } - if (size == (tmsize_t)(-1)) { - size = (isTiled(tif) ? - tif->tif_tilesize : TIFFStripSize(tif)); - /* - * Make raw data buffer at least 8K - */ - if (size < 8*1024) - size = 8*1024; - bp = NULL; /* NB: force malloc */ - } - if (bp == NULL) { - bp = _TIFFmalloc(size); - if (bp == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, "No space for output buffer"); - return (0); - } - tif->tif_flags |= TIFF_MYBUFFER; - } else - tif->tif_flags &= ~TIFF_MYBUFFER; - tif->tif_rawdata = (uint8*) bp; - tif->tif_rawdatasize = size; - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_flags |= TIFF_BUFFERSETUP; - return (1); -} - -/* - * Grow the strip data structures by delta strips. - */ -static int -TIFFGrowStrips(TIFF* tif, uint32 delta, const char* module) -{ - TIFFDirectory *td = &tif->tif_dir; - uint64* new_stripoffset; - uint64* new_stripbytecount; - - assert(td->td_planarconfig == PLANARCONFIG_CONTIG); - new_stripoffset = (uint64*)_TIFFrealloc(td->td_stripoffset, - (td->td_nstrips + delta) * sizeof (uint64)); - new_stripbytecount = (uint64*)_TIFFrealloc(td->td_stripbytecount, - (td->td_nstrips + delta) * sizeof (uint64)); - if (new_stripoffset == NULL || new_stripbytecount == NULL) { - if (new_stripoffset) - _TIFFfree(new_stripoffset); - if (new_stripbytecount) - _TIFFfree(new_stripbytecount); - td->td_nstrips = 0; - TIFFErrorExt(tif->tif_clientdata, module, "No space to expand strip arrays"); - return (0); - } - td->td_stripoffset = new_stripoffset; - td->td_stripbytecount = new_stripbytecount; - _TIFFmemset(td->td_stripoffset + td->td_nstrips, - 0, delta*sizeof (uint64)); - _TIFFmemset(td->td_stripbytecount + td->td_nstrips, - 0, delta*sizeof (uint64)); - td->td_nstrips += delta; - tif->tif_flags |= TIFF_DIRTYDIRECT; - - return (1); -} - -/* - * Append the data to the specified strip. - */ -static int -TIFFAppendToStrip(TIFF* tif, uint32 strip, uint8* data, tmsize_t cc) -{ - static const char module[] = "TIFFAppendToStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint64 m; - int64 old_byte_count = -1; - - if (td->td_stripoffset[strip] == 0 || tif->tif_curoff == 0) { - assert(td->td_nstrips > 0); - - if( td->td_stripbytecount[strip] != 0 - && td->td_stripoffset[strip] != 0 - && td->td_stripbytecount[strip] >= (uint64) cc ) - { - /* - * There is already tile data on disk, and the new tile - * data we have will fit in the same space. The only - * aspect of this that is risky is that there could be - * more data to append to this strip before we are done - * depending on how we are getting called. - */ - if (!SeekOK(tif, td->td_stripoffset[strip])) { - TIFFErrorExt(tif->tif_clientdata, module, - "Seek error at scanline %lu", - (unsigned long)tif->tif_row); - return (0); - } - } - else - { - /* - * Seek to end of file, and set that as our location to - * write this strip. - */ - td->td_stripoffset[strip] = TIFFSeekFile(tif, 0, SEEK_END); - tif->tif_flags |= TIFF_DIRTYSTRIP; - } - - tif->tif_curoff = td->td_stripoffset[strip]; - - /* - * We are starting a fresh strip/tile, so set the size to zero. - */ - old_byte_count = td->td_stripbytecount[strip]; - td->td_stripbytecount[strip] = 0; - } - - m = tif->tif_curoff+cc; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - m = (uint32)m; - if ((mtif_curoff)||(m<(uint64)cc)) - { - TIFFErrorExt(tif->tif_clientdata, module, "Maximum TIFF file size exceeded"); - return (0); - } - if (!WriteOK(tif, data, cc)) { - TIFFErrorExt(tif->tif_clientdata, module, "Write error at scanline %lu", - (unsigned long) tif->tif_row); - return (0); - } - tif->tif_curoff = m; - td->td_stripbytecount[strip] += cc; - - if( (int64) td->td_stripbytecount[strip] != old_byte_count ) - tif->tif_flags |= TIFF_DIRTYSTRIP; - - return (1); -} - -/* - * Internal version of TIFFFlushData that can be - * called by ``encodestrip routines'' w/o concern - * for infinite recursion. - */ -int -TIFFFlushData1(TIFF* tif) -{ - if (tif->tif_rawcc > 0 && tif->tif_flags & TIFF_BUF4WRITE ) { - if (!isFillOrder(tif, tif->tif_dir.td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits((uint8*)tif->tif_rawdata, - tif->tif_rawcc); - if (!TIFFAppendToStrip(tif, - isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip, - tif->tif_rawdata, tif->tif_rawcc)) - return (0); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - } - return (1); -} - -/* - * Set the current write offset. This should only be - * used to set the offset to a known previous location - * (very carefully), or to 0 so that the next write gets - * appended to the end of the file. - */ -void -TIFFSetWriteOffset(TIFF* tif, toff_t off) -{ - tif->tif_curoff = off; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tif_zip.c b/tiff/libtiff/tif_zip.c deleted file mode 100755 index 22e9f35..0000000 --- a/tiff/libtiff/tif_zip.c +++ /dev/null @@ -1,472 +0,0 @@ -/* $Id: tif_zip.c,v 1.33 2014-12-25 18:29:11 erouault Exp $ */ - -/* - * Copyright (c) 1995-1997 Sam Leffler - * Copyright (c) 1995-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tiffiop.h" -#ifdef ZIP_SUPPORT -/* - * TIFF Library. - * - * ZIP (aka Deflate) Compression Support - * - * This file is simply an interface to the zlib library written by - * Jean-loup Gailly and Mark Adler. You must use version 1.0 or later - * of the library: this code assumes the 1.0 API and also depends on - * the ability to write the zlib header multiple times (one per strip) - * which was not possible with versions prior to 0.95. Note also that - * older versions of this codec avoided this bug by suppressing the header - * entirely. This means that files written with the old library cannot - * be read; they should be converted to a different compression scheme - * and then reconverted. - * - * The data format used by the zlib library is described in the files - * zlib-3.1.doc, deflate-1.1.doc and gzip-4.1.doc, available in the - * directory ftp://ftp.uu.net/pub/archiving/zip/doc. The library was - * last found at ftp://ftp.uu.net/pub/archiving/zip/zlib/zlib-0.99.tar.gz. - */ -#include "tif_predict.h" -#include "zlib.h" - -#include - -/* - * Sigh, ZLIB_VERSION is defined as a string so there's no - * way to do a proper check here. Instead we guess based - * on the presence of #defines that were added between the - * 0.95 and 1.0 distributions. - */ -#if !defined(Z_NO_COMPRESSION) || !defined(Z_DEFLATED) -#error "Antiquated ZLIB software; you must use version 1.0 or later" -#endif - -#define SAFE_MSG(sp) ((sp)->stream.msg == NULL ? "" : (sp)->stream.msg) - -/* - * State block for each open TIFF - * file using ZIP compression/decompression. - */ -typedef struct { - TIFFPredictorState predict; - z_stream stream; - int zipquality; /* compression level */ - int state; /* state flags */ -#define ZSTATE_INIT_DECODE 0x01 -#define ZSTATE_INIT_ENCODE 0x02 - - TIFFVGetMethod vgetparent; /* super-class method */ - TIFFVSetMethod vsetparent; /* super-class method */ -} ZIPState; - -#define ZState(tif) ((ZIPState*) (tif)->tif_data) -#define DecoderState(tif) ZState(tif) -#define EncoderState(tif) ZState(tif) - -static int ZIPEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s); -static int ZIPDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s); - -static int -ZIPFixupTags(TIFF* tif) -{ - (void) tif; - return (1); -} - -static int -ZIPSetupDecode(TIFF* tif) -{ - static const char module[] = "ZIPSetupDecode"; - ZIPState* sp = DecoderState(tif); - - assert(sp != NULL); - - /* if we were last encoding, terminate this mode */ - if (sp->state & ZSTATE_INIT_ENCODE) { - deflateEnd(&sp->stream); - sp->state = 0; - } - - if (inflateInit(&sp->stream) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "%s", SAFE_MSG(sp)); - return (0); - } else { - sp->state |= ZSTATE_INIT_DECODE; - return (1); - } -} - -/* - * Setup state for decoding a strip. - */ -static int -ZIPPreDecode(TIFF* tif, uint16 s) -{ - static const char module[] = "ZIPPreDecode"; - ZIPState* sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - - if( (sp->state & ZSTATE_INIT_DECODE) == 0 ) - tif->tif_setupdecode( tif ); - - sp->stream.next_in = tif->tif_rawdata; - assert(sizeof(sp->stream.avail_in)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_in = (uInt) tif->tif_rawcc; - if ((tmsize_t)sp->stream.avail_in != tif->tif_rawcc) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - return (inflateReset(&sp->stream) == Z_OK); -} - -static int -ZIPDecode(TIFF* tif, uint8* op, tmsize_t occ, uint16 s) -{ - static const char module[] = "ZIPDecode"; - ZIPState* sp = DecoderState(tif); - - (void) s; - assert(sp != NULL); - assert(sp->state == ZSTATE_INIT_DECODE); - - sp->stream.next_in = tif->tif_rawcp; - sp->stream.avail_in = (uInt) tif->tif_rawcc; - - sp->stream.next_out = op; - assert(sizeof(sp->stream.avail_out)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_out = (uInt) occ; - if ((tmsize_t)sp->stream.avail_out != occ) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - do { - int state = inflate(&sp->stream, Z_PARTIAL_FLUSH); - if (state == Z_STREAM_END) - break; - if (state == Z_DATA_ERROR) { - TIFFErrorExt(tif->tif_clientdata, module, - "Decoding error at scanline %lu, %s", - (unsigned long) tif->tif_row, SAFE_MSG(sp)); - if (inflateSync(&sp->stream) != Z_OK) - return (0); - continue; - } - if (state != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "ZLib error: %s", SAFE_MSG(sp)); - return (0); - } - } while (sp->stream.avail_out > 0); - if (sp->stream.avail_out != 0) { - TIFFErrorExt(tif->tif_clientdata, module, - "Not enough data at scanline %lu (short " TIFF_UINT64_FORMAT " bytes)", - (unsigned long) tif->tif_row, (TIFF_UINT64_T) sp->stream.avail_out); - return (0); - } - - tif->tif_rawcp = sp->stream.next_in; - tif->tif_rawcc = sp->stream.avail_in; - - return (1); -} - -static int -ZIPSetupEncode(TIFF* tif) -{ - static const char module[] = "ZIPSetupEncode"; - ZIPState* sp = EncoderState(tif); - - assert(sp != NULL); - if (sp->state & ZSTATE_INIT_DECODE) { - inflateEnd(&sp->stream); - sp->state = 0; - } - - if (deflateInit(&sp->stream, sp->zipquality) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "%s", SAFE_MSG(sp)); - return (0); - } else { - sp->state |= ZSTATE_INIT_ENCODE; - return (1); - } -} - -/* - * Reset encoding state at the start of a strip. - */ -static int -ZIPPreEncode(TIFF* tif, uint16 s) -{ - static const char module[] = "ZIPPreEncode"; - ZIPState *sp = EncoderState(tif); - - (void) s; - assert(sp != NULL); - if( sp->state != ZSTATE_INIT_ENCODE ) - tif->tif_setupencode( tif ); - - sp->stream.next_out = tif->tif_rawdata; - assert(sizeof(sp->stream.avail_out)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_out = tif->tif_rawdatasize; - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - return (deflateReset(&sp->stream) == Z_OK); -} - -/* - * Encode a chunk of pixels. - */ -static int -ZIPEncode(TIFF* tif, uint8* bp, tmsize_t cc, uint16 s) -{ - static const char module[] = "ZIPEncode"; - ZIPState *sp = EncoderState(tif); - - assert(sp != NULL); - assert(sp->state == ZSTATE_INIT_ENCODE); - - (void) s; - sp->stream.next_in = bp; - assert(sizeof(sp->stream.avail_in)==4); /* if this assert gets raised, - we need to simplify this code to reflect a ZLib that is likely updated - to deal with 8byte memory sizes, though this code will respond - apropriately even before we simplify it */ - sp->stream.avail_in = (uInt) cc; - if ((tmsize_t)sp->stream.avail_in != cc) - { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); - return (0); - } - do { - if (deflate(&sp->stream, Z_NO_FLUSH) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, - "Encoder error: %s", - SAFE_MSG(sp)); - return (0); - } - if (sp->stream.avail_out == 0) { - tif->tif_rawcc = tif->tif_rawdatasize; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (uInt) tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in ZIPPreEncode */ - } - } while (sp->stream.avail_in > 0); - return (1); -} - -/* - * Finish off an encoded strip by flushing the last - * string and tacking on an End Of Information code. - */ -static int -ZIPPostEncode(TIFF* tif) -{ - static const char module[] = "ZIPPostEncode"; - ZIPState *sp = EncoderState(tif); - int state; - - sp->stream.avail_in = 0; - do { - state = deflate(&sp->stream, Z_FINISH); - switch (state) { - case Z_STREAM_END: - case Z_OK: - if ((tmsize_t)sp->stream.avail_out != tif->tif_rawdatasize) - { - tif->tif_rawcc = tif->tif_rawdatasize - sp->stream.avail_out; - TIFFFlushData1(tif); - sp->stream.next_out = tif->tif_rawdata; - sp->stream.avail_out = (uInt) tif->tif_rawdatasize; /* this is a safe typecast, as check is made already in ZIPPreEncode */ - } - break; - default: - TIFFErrorExt(tif->tif_clientdata, module, - "ZLib error: %s", SAFE_MSG(sp)); - return (0); - } - } while (state != Z_STREAM_END); - return (1); -} - -static void -ZIPCleanup(TIFF* tif) -{ - ZIPState* sp = ZState(tif); - - assert(sp != 0); - - (void)TIFFPredictorCleanup(tif); - - tif->tif_tagmethods.vgetfield = sp->vgetparent; - tif->tif_tagmethods.vsetfield = sp->vsetparent; - - if (sp->state & ZSTATE_INIT_ENCODE) { - deflateEnd(&sp->stream); - sp->state = 0; - } else if( sp->state & ZSTATE_INIT_DECODE) { - inflateEnd(&sp->stream); - sp->state = 0; - } - _TIFFfree(sp); - tif->tif_data = NULL; - - _TIFFSetDefaultCompressionState(tif); -} - -static int -ZIPVSetField(TIFF* tif, uint32 tag, va_list ap) -{ - static const char module[] = "ZIPVSetField"; - ZIPState* sp = ZState(tif); - - switch (tag) { - case TIFFTAG_ZIPQUALITY: - sp->zipquality = (int) va_arg(ap, int); - if ( sp->state&ZSTATE_INIT_ENCODE ) { - if (deflateParams(&sp->stream, - sp->zipquality, Z_DEFAULT_STRATEGY) != Z_OK) { - TIFFErrorExt(tif->tif_clientdata, module, "ZLib error: %s", - SAFE_MSG(sp)); - return (0); - } - } - return (1); - default: - return (*sp->vsetparent)(tif, tag, ap); - } - /*NOTREACHED*/ -} - -static int -ZIPVGetField(TIFF* tif, uint32 tag, va_list ap) -{ - ZIPState* sp = ZState(tif); - - switch (tag) { - case TIFFTAG_ZIPQUALITY: - *va_arg(ap, int*) = sp->zipquality; - break; - default: - return (*sp->vgetparent)(tif, tag, ap); - } - return (1); -} - -static const TIFFField zipFields[] = { - { TIFFTAG_ZIPQUALITY, 0, 0, TIFF_ANY, 0, TIFF_SETGET_INT, TIFF_SETGET_UNDEFINED, FIELD_PSEUDO, TRUE, FALSE, "", NULL }, -}; - -int -TIFFInitZIP(TIFF* tif, int scheme) -{ - static const char module[] = "TIFFInitZIP"; - ZIPState* sp; - - assert( (scheme == COMPRESSION_DEFLATE) - || (scheme == COMPRESSION_ADOBE_DEFLATE)); - - /* - * Merge codec-specific tag information. - */ - if (!_TIFFMergeFields(tif, zipFields, TIFFArrayCount(zipFields))) { - TIFFErrorExt(tif->tif_clientdata, module, - "Merging Deflate codec-specific tags failed"); - return 0; - } - - /* - * Allocate state block so tag methods have storage to record values. - */ - tif->tif_data = (uint8*) _TIFFmalloc(sizeof (ZIPState)); - if (tif->tif_data == NULL) - goto bad; - sp = ZState(tif); - sp->stream.zalloc = NULL; - sp->stream.zfree = NULL; - sp->stream.opaque = NULL; - sp->stream.data_type = Z_BINARY; - - /* - * Override parent get/set field methods. - */ - sp->vgetparent = tif->tif_tagmethods.vgetfield; - tif->tif_tagmethods.vgetfield = ZIPVGetField; /* hook for codec tags */ - sp->vsetparent = tif->tif_tagmethods.vsetfield; - tif->tif_tagmethods.vsetfield = ZIPVSetField; /* hook for codec tags */ - - /* Default values for codec-specific fields */ - sp->zipquality = Z_DEFAULT_COMPRESSION; /* default comp. level */ - sp->state = 0; - - /* - * Install codec methods. - */ - tif->tif_fixuptags = ZIPFixupTags; - tif->tif_setupdecode = ZIPSetupDecode; - tif->tif_predecode = ZIPPreDecode; - tif->tif_decoderow = ZIPDecode; - tif->tif_decodestrip = ZIPDecode; - tif->tif_decodetile = ZIPDecode; - tif->tif_setupencode = ZIPSetupEncode; - tif->tif_preencode = ZIPPreEncode; - tif->tif_postencode = ZIPPostEncode; - tif->tif_encoderow = ZIPEncode; - tif->tif_encodestrip = ZIPEncode; - tif->tif_encodetile = ZIPEncode; - tif->tif_cleanup = ZIPCleanup; - /* - * Setup predictor setup. - */ - (void) TIFFPredictorInit(tif); - return (1); -bad: - TIFFErrorExt(tif->tif_clientdata, module, - "No space for ZIP state block"); - return (0); -} -#endif /* ZIP_SUPORT */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiff.h b/tiff/libtiff/tiff.h deleted file mode 100755 index bc46acd..0000000 --- a/tiff/libtiff/tiff.h +++ /dev/null @@ -1,681 +0,0 @@ -/* $Id: tiff.h,v 1.69 2014-04-02 17:23:06 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFF_ -#define _TIFF_ - -#include "tiffconf.h" - -/* - * Tag Image File Format (TIFF) - * - * Based on Rev 6.0 from: - * Developer's Desk - * Aldus Corporation - * 411 First Ave. South - * Suite 200 - * Seattle, WA 98104 - * 206-622-5500 - * - * (http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf) - * - * For BigTIFF design notes see the following links - * http://www.remotesensing.org/libtiff/bigtiffdesign.html - * http://www.awaresystems.be/imaging/tiff/bigtiff.html - */ - -#define TIFF_VERSION_CLASSIC 42 -#define TIFF_VERSION_BIG 43 - -#define TIFF_BIGENDIAN 0x4d4d -#define TIFF_LITTLEENDIAN 0x4949 -#define MDI_LITTLEENDIAN 0x5045 -#define MDI_BIGENDIAN 0x4550 - -/* - * Intrinsic data types required by the file format: - * - * 8-bit quantities int8/uint8 - * 16-bit quantities int16/uint16 - * 32-bit quantities int32/uint32 - * 64-bit quantities int64/uint64 - * strings unsigned char* - */ - -typedef TIFF_INT8_T int8; -typedef TIFF_UINT8_T uint8; - -typedef TIFF_INT16_T int16; -typedef TIFF_UINT16_T uint16; - -typedef TIFF_INT32_T int32; -typedef TIFF_UINT32_T uint32; - -typedef TIFF_INT64_T int64; -typedef TIFF_UINT64_T uint64; - -/* - * Some types as promoted in a variable argument list - * We use uint16_vap rather then directly using int, because this way - * we document the type we actually want to pass through, conceptually, - * rather then confusing the issue by merely stating the type it gets - * promoted to - */ - -typedef int uint16_vap; - -/* - * TIFF header. - */ -typedef struct { - uint16 tiff_magic; /* magic number (defines byte order) */ - uint16 tiff_version; /* TIFF version number */ -} TIFFHeaderCommon; -typedef struct { - uint16 tiff_magic; /* magic number (defines byte order) */ - uint16 tiff_version; /* TIFF version number */ - uint32 tiff_diroff; /* byte offset to first directory */ -} TIFFHeaderClassic; -typedef struct { - uint16 tiff_magic; /* magic number (defines byte order) */ - uint16 tiff_version; /* TIFF version number */ - uint16 tiff_offsetsize; /* size of offsets, should be 8 */ - uint16 tiff_unused; /* unused word, should be 0 */ - uint64 tiff_diroff; /* byte offset to first directory */ -} TIFFHeaderBig; - - -/* - * NB: In the comments below, - * - items marked with a + are obsoleted by revision 5.0, - * - items marked with a ! are introduced in revision 6.0. - * - items marked with a % are introduced post revision 6.0. - * - items marked with a $ are obsoleted by revision 6.0. - * - items marked with a & are introduced by Adobe DNG specification. - */ - -/* - * Tag data type information. - * - * Note: RATIONALs are the ratio of two 32-bit integer values. - */ -typedef enum { - TIFF_NOTYPE = 0, /* placeholder */ - TIFF_BYTE = 1, /* 8-bit unsigned integer */ - TIFF_ASCII = 2, /* 8-bit bytes w/ last byte null */ - TIFF_SHORT = 3, /* 16-bit unsigned integer */ - TIFF_LONG = 4, /* 32-bit unsigned integer */ - TIFF_RATIONAL = 5, /* 64-bit unsigned fraction */ - TIFF_SBYTE = 6, /* !8-bit signed integer */ - TIFF_UNDEFINED = 7, /* !8-bit untyped data */ - TIFF_SSHORT = 8, /* !16-bit signed integer */ - TIFF_SLONG = 9, /* !32-bit signed integer */ - TIFF_SRATIONAL = 10, /* !64-bit signed fraction */ - TIFF_FLOAT = 11, /* !32-bit IEEE floating point */ - TIFF_DOUBLE = 12, /* !64-bit IEEE floating point */ - TIFF_IFD = 13, /* %32-bit unsigned integer (offset) */ - TIFF_LONG8 = 16, /* BigTIFF 64-bit unsigned integer */ - TIFF_SLONG8 = 17, /* BigTIFF 64-bit signed integer */ - TIFF_IFD8 = 18 /* BigTIFF 64-bit unsigned integer (offset) */ -} TIFFDataType; - -/* - * TIFF Tag Definitions. - */ -#define TIFFTAG_SUBFILETYPE 254 /* subfile data descriptor */ -#define FILETYPE_REDUCEDIMAGE 0x1 /* reduced resolution version */ -#define FILETYPE_PAGE 0x2 /* one page of many */ -#define FILETYPE_MASK 0x4 /* transparency mask */ -#define TIFFTAG_OSUBFILETYPE 255 /* +kind of data in subfile */ -#define OFILETYPE_IMAGE 1 /* full resolution image data */ -#define OFILETYPE_REDUCEDIMAGE 2 /* reduced size image data */ -#define OFILETYPE_PAGE 3 /* one page of many */ -#define TIFFTAG_IMAGEWIDTH 256 /* image width in pixels */ -#define TIFFTAG_IMAGELENGTH 257 /* image height in pixels */ -#define TIFFTAG_BITSPERSAMPLE 258 /* bits per channel (sample) */ -#define TIFFTAG_COMPRESSION 259 /* data compression technique */ -#define COMPRESSION_NONE 1 /* dump mode */ -#define COMPRESSION_CCITTRLE 2 /* CCITT modified Huffman RLE */ -#define COMPRESSION_CCITTFAX3 3 /* CCITT Group 3 fax encoding */ -#define COMPRESSION_CCITT_T4 3 /* CCITT T.4 (TIFF 6 name) */ -#define COMPRESSION_CCITTFAX4 4 /* CCITT Group 4 fax encoding */ -#define COMPRESSION_CCITT_T6 4 /* CCITT T.6 (TIFF 6 name) */ -#define COMPRESSION_LZW 5 /* Lempel-Ziv & Welch */ -#define COMPRESSION_OJPEG 6 /* !6.0 JPEG */ -#define COMPRESSION_JPEG 7 /* %JPEG DCT compression */ -#define COMPRESSION_T85 9 /* !TIFF/FX T.85 JBIG compression */ -#define COMPRESSION_T43 10 /* !TIFF/FX T.43 colour by layered JBIG compression */ -#define COMPRESSION_NEXT 32766 /* NeXT 2-bit RLE */ -#define COMPRESSION_CCITTRLEW 32771 /* #1 w/ word alignment */ -#define COMPRESSION_PACKBITS 32773 /* Macintosh RLE */ -#define COMPRESSION_THUNDERSCAN 32809 /* ThunderScan RLE */ -/* codes 32895-32898 are reserved for ANSI IT8 TIFF/IT */ -#define COMPRESSION_DCS 32947 /* Kodak DCS encoding */ -#define COMPRESSION_JBIG 34661 /* ISO JBIG */ -#define COMPRESSION_SGILOG 34676 /* SGI Log Luminance RLE */ -#define COMPRESSION_SGILOG24 34677 /* SGI Log 24-bit packed */ -#define COMPRESSION_JP2000 34712 /* Leadtools JPEG2000 */ -#define COMPRESSION_LZMA 34925 /* LZMA2 */ -#define TIFFTAG_PHOTOMETRIC 262 /* photometric interpretation */ -#define PHOTOMETRIC_MINISWHITE 0 /* min value is white */ -#define PHOTOMETRIC_MINISBLACK 1 /* min value is black */ -#define PHOTOMETRIC_RGB 2 /* RGB color model */ -#define PHOTOMETRIC_PALETTE 3 /* color map indexed */ -#define PHOTOMETRIC_MASK 4 /* $holdout mask */ -#define PHOTOMETRIC_SEPARATED 5 /* !color separations */ -#define PHOTOMETRIC_YCBCR 6 /* !CCIR 601 */ -#define PHOTOMETRIC_CIELAB 8 /* !1976 CIE L*a*b* */ -#define PHOTOMETRIC_ICCLAB 9 /* ICC L*a*b* [Adobe TIFF Technote 4] */ -#define PHOTOMETRIC_ITULAB 10 /* ITU L*a*b* */ -#define PHOTOMETRIC_CFA 32803 /* color filter array */ -#define PHOTOMETRIC_LOGL 32844 /* CIE Log2(L) */ -#define PHOTOMETRIC_LOGLUV 32845 /* CIE Log2(L) (u',v') */ -#define TIFFTAG_THRESHHOLDING 263 /* +thresholding used on data */ -#define THRESHHOLD_BILEVEL 1 /* b&w art scan */ -#define THRESHHOLD_HALFTONE 2 /* or dithered scan */ -#define THRESHHOLD_ERRORDIFFUSE 3 /* usually floyd-steinberg */ -#define TIFFTAG_CELLWIDTH 264 /* +dithering matrix width */ -#define TIFFTAG_CELLLENGTH 265 /* +dithering matrix height */ -#define TIFFTAG_FILLORDER 266 /* data order within a byte */ -#define FILLORDER_MSB2LSB 1 /* most significant -> least */ -#define FILLORDER_LSB2MSB 2 /* least significant -> most */ -#define TIFFTAG_DOCUMENTNAME 269 /* name of doc. image is from */ -#define TIFFTAG_IMAGEDESCRIPTION 270 /* info about image */ -#define TIFFTAG_MAKE 271 /* scanner manufacturer name */ -#define TIFFTAG_MODEL 272 /* scanner model name/number */ -#define TIFFTAG_STRIPOFFSETS 273 /* offsets to data strips */ -#define TIFFTAG_ORIENTATION 274 /* +image orientation */ -#define ORIENTATION_TOPLEFT 1 /* row 0 top, col 0 lhs */ -#define ORIENTATION_TOPRIGHT 2 /* row 0 top, col 0 rhs */ -#define ORIENTATION_BOTRIGHT 3 /* row 0 bottom, col 0 rhs */ -#define ORIENTATION_BOTLEFT 4 /* row 0 bottom, col 0 lhs */ -#define ORIENTATION_LEFTTOP 5 /* row 0 lhs, col 0 top */ -#define ORIENTATION_RIGHTTOP 6 /* row 0 rhs, col 0 top */ -#define ORIENTATION_RIGHTBOT 7 /* row 0 rhs, col 0 bottom */ -#define ORIENTATION_LEFTBOT 8 /* row 0 lhs, col 0 bottom */ -#define TIFFTAG_SAMPLESPERPIXEL 277 /* samples per pixel */ -#define TIFFTAG_ROWSPERSTRIP 278 /* rows per strip of data */ -#define TIFFTAG_STRIPBYTECOUNTS 279 /* bytes counts for strips */ -#define TIFFTAG_MINSAMPLEVALUE 280 /* +minimum sample value */ -#define TIFFTAG_MAXSAMPLEVALUE 281 /* +maximum sample value */ -#define TIFFTAG_XRESOLUTION 282 /* pixels/resolution in x */ -#define TIFFTAG_YRESOLUTION 283 /* pixels/resolution in y */ -#define TIFFTAG_PLANARCONFIG 284 /* storage organization */ -#define PLANARCONFIG_CONTIG 1 /* single image plane */ -#define PLANARCONFIG_SEPARATE 2 /* separate planes of data */ -#define TIFFTAG_PAGENAME 285 /* page name image is from */ -#define TIFFTAG_XPOSITION 286 /* x page offset of image lhs */ -#define TIFFTAG_YPOSITION 287 /* y page offset of image lhs */ -#define TIFFTAG_FREEOFFSETS 288 /* +byte offset to free block */ -#define TIFFTAG_FREEBYTECOUNTS 289 /* +sizes of free blocks */ -#define TIFFTAG_GRAYRESPONSEUNIT 290 /* $gray scale curve accuracy */ -#define GRAYRESPONSEUNIT_10S 1 /* tenths of a unit */ -#define GRAYRESPONSEUNIT_100S 2 /* hundredths of a unit */ -#define GRAYRESPONSEUNIT_1000S 3 /* thousandths of a unit */ -#define GRAYRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ -#define GRAYRESPONSEUNIT_100000S 5 /* hundred-thousandths */ -#define TIFFTAG_GRAYRESPONSECURVE 291 /* $gray scale response curve */ -#define TIFFTAG_GROUP3OPTIONS 292 /* 32 flag bits */ -#define TIFFTAG_T4OPTIONS 292 /* TIFF 6.0 proper name alias */ -#define GROUP3OPT_2DENCODING 0x1 /* 2-dimensional coding */ -#define GROUP3OPT_UNCOMPRESSED 0x2 /* data not compressed */ -#define GROUP3OPT_FILLBITS 0x4 /* fill to byte boundary */ -#define TIFFTAG_GROUP4OPTIONS 293 /* 32 flag bits */ -#define TIFFTAG_T6OPTIONS 293 /* TIFF 6.0 proper name */ -#define GROUP4OPT_UNCOMPRESSED 0x2 /* data not compressed */ -#define TIFFTAG_RESOLUTIONUNIT 296 /* units of resolutions */ -#define RESUNIT_NONE 1 /* no meaningful units */ -#define RESUNIT_INCH 2 /* english */ -#define RESUNIT_CENTIMETER 3 /* metric */ -#define TIFFTAG_PAGENUMBER 297 /* page numbers of multi-page */ -#define TIFFTAG_COLORRESPONSEUNIT 300 /* $color curve accuracy */ -#define COLORRESPONSEUNIT_10S 1 /* tenths of a unit */ -#define COLORRESPONSEUNIT_100S 2 /* hundredths of a unit */ -#define COLORRESPONSEUNIT_1000S 3 /* thousandths of a unit */ -#define COLORRESPONSEUNIT_10000S 4 /* ten-thousandths of a unit */ -#define COLORRESPONSEUNIT_100000S 5 /* hundred-thousandths */ -#define TIFFTAG_TRANSFERFUNCTION 301 /* !colorimetry info */ -#define TIFFTAG_SOFTWARE 305 /* name & release */ -#define TIFFTAG_DATETIME 306 /* creation date and time */ -#define TIFFTAG_ARTIST 315 /* creator of image */ -#define TIFFTAG_HOSTCOMPUTER 316 /* machine where created */ -#define TIFFTAG_PREDICTOR 317 /* prediction scheme w/ LZW */ -#define PREDICTOR_NONE 1 /* no prediction scheme used */ -#define PREDICTOR_HORIZONTAL 2 /* horizontal differencing */ -#define PREDICTOR_FLOATINGPOINT 3 /* floating point predictor */ -#define TIFFTAG_WHITEPOINT 318 /* image white point */ -#define TIFFTAG_PRIMARYCHROMATICITIES 319 /* !primary chromaticities */ -#define TIFFTAG_COLORMAP 320 /* RGB map for pallette image */ -#define TIFFTAG_HALFTONEHINTS 321 /* !highlight+shadow info */ -#define TIFFTAG_TILEWIDTH 322 /* !tile width in pixels */ -#define TIFFTAG_TILELENGTH 323 /* !tile height in pixels */ -#define TIFFTAG_TILEOFFSETS 324 /* !offsets to data tiles */ -#define TIFFTAG_TILEBYTECOUNTS 325 /* !byte counts for tiles */ -#define TIFFTAG_BADFAXLINES 326 /* lines w/ wrong pixel count */ -#define TIFFTAG_CLEANFAXDATA 327 /* regenerated line info */ -#define CLEANFAXDATA_CLEAN 0 /* no errors detected */ -#define CLEANFAXDATA_REGENERATED 1 /* receiver regenerated lines */ -#define CLEANFAXDATA_UNCLEAN 2 /* uncorrected errors exist */ -#define TIFFTAG_CONSECUTIVEBADFAXLINES 328 /* max consecutive bad lines */ -#define TIFFTAG_SUBIFD 330 /* subimage descriptors */ -#define TIFFTAG_INKSET 332 /* !inks in separated image */ -#define INKSET_CMYK 1 /* !cyan-magenta-yellow-black color */ -#define INKSET_MULTIINK 2 /* !multi-ink or hi-fi color */ -#define TIFFTAG_INKNAMES 333 /* !ascii names of inks */ -#define TIFFTAG_NUMBEROFINKS 334 /* !number of inks */ -#define TIFFTAG_DOTRANGE 336 /* !0% and 100% dot codes */ -#define TIFFTAG_TARGETPRINTER 337 /* !separation target */ -#define TIFFTAG_EXTRASAMPLES 338 /* !info about extra samples */ -#define EXTRASAMPLE_UNSPECIFIED 0 /* !unspecified data */ -#define EXTRASAMPLE_ASSOCALPHA 1 /* !associated alpha data */ -#define EXTRASAMPLE_UNASSALPHA 2 /* !unassociated alpha data */ -#define TIFFTAG_SAMPLEFORMAT 339 /* !data sample format */ -#define SAMPLEFORMAT_UINT 1 /* !unsigned integer data */ -#define SAMPLEFORMAT_INT 2 /* !signed integer data */ -#define SAMPLEFORMAT_IEEEFP 3 /* !IEEE floating point data */ -#define SAMPLEFORMAT_VOID 4 /* !untyped data */ -#define SAMPLEFORMAT_COMPLEXINT 5 /* !complex signed int */ -#define SAMPLEFORMAT_COMPLEXIEEEFP 6 /* !complex ieee floating */ -#define TIFFTAG_SMINSAMPLEVALUE 340 /* !variable MinSampleValue */ -#define TIFFTAG_SMAXSAMPLEVALUE 341 /* !variable MaxSampleValue */ -#define TIFFTAG_CLIPPATH 343 /* %ClipPath - [Adobe TIFF technote 2] */ -#define TIFFTAG_XCLIPPATHUNITS 344 /* %XClipPathUnits - [Adobe TIFF technote 2] */ -#define TIFFTAG_YCLIPPATHUNITS 345 /* %YClipPathUnits - [Adobe TIFF technote 2] */ -#define TIFFTAG_INDEXED 346 /* %Indexed - [Adobe TIFF Technote 3] */ -#define TIFFTAG_JPEGTABLES 347 /* %JPEG table stream */ -#define TIFFTAG_OPIPROXY 351 /* %OPI Proxy [Adobe TIFF technote] */ -/* Tags 400-435 are from the TIFF/FX spec */ -#define TIFFTAG_GLOBALPARAMETERSIFD 400 /* ! */ -#define TIFFTAG_PROFILETYPE 401 /* ! */ -#define PROFILETYPE_UNSPECIFIED 0 /* ! */ -#define PROFILETYPE_G3_FAX 1 /* ! */ -#define TIFFTAG_FAXPROFILE 402 /* ! */ -#define FAXPROFILE_S 1 /* !TIFF/FX FAX profile S */ -#define FAXPROFILE_F 2 /* !TIFF/FX FAX profile F */ -#define FAXPROFILE_J 3 /* !TIFF/FX FAX profile J */ -#define FAXPROFILE_C 4 /* !TIFF/FX FAX profile C */ -#define FAXPROFILE_L 5 /* !TIFF/FX FAX profile L */ -#define FAXPROFILE_M 6 /* !TIFF/FX FAX profile LM */ -#define TIFFTAG_CODINGMETHODS 403 /* !TIFF/FX coding methods */ -#define CODINGMETHODS_T4_1D (1 << 1) /* !T.4 1D */ -#define CODINGMETHODS_T4_2D (1 << 2) /* !T.4 2D */ -#define CODINGMETHODS_T6 (1 << 3) /* !T.6 */ -#define CODINGMETHODS_T85 (1 << 4) /* !T.85 JBIG */ -#define CODINGMETHODS_T42 (1 << 5) /* !T.42 JPEG */ -#define CODINGMETHODS_T43 (1 << 6) /* !T.43 colour by layered JBIG */ -#define TIFFTAG_VERSIONYEAR 404 /* !TIFF/FX version year */ -#define TIFFTAG_MODENUMBER 405 /* !TIFF/FX mode number */ -#define TIFFTAG_DECODE 433 /* !TIFF/FX decode */ -#define TIFFTAG_IMAGEBASECOLOR 434 /* !TIFF/FX image base colour */ -#define TIFFTAG_T82OPTIONS 435 /* !TIFF/FX T.82 options */ -/* - * Tags 512-521 are obsoleted by Technical Note #2 which specifies a - * revised JPEG-in-TIFF scheme. - */ -#define TIFFTAG_JPEGPROC 512 /* !JPEG processing algorithm */ -#define JPEGPROC_BASELINE 1 /* !baseline sequential */ -#define JPEGPROC_LOSSLESS 14 /* !Huffman coded lossless */ -#define TIFFTAG_JPEGIFOFFSET 513 /* !pointer to SOI marker */ -#define TIFFTAG_JPEGIFBYTECOUNT 514 /* !JFIF stream length */ -#define TIFFTAG_JPEGRESTARTINTERVAL 515 /* !restart interval length */ -#define TIFFTAG_JPEGLOSSLESSPREDICTORS 517 /* !lossless proc predictor */ -#define TIFFTAG_JPEGPOINTTRANSFORM 518 /* !lossless point transform */ -#define TIFFTAG_JPEGQTABLES 519 /* !Q matrice offsets */ -#define TIFFTAG_JPEGDCTABLES 520 /* !DCT table offsets */ -#define TIFFTAG_JPEGACTABLES 521 /* !AC coefficient offsets */ -#define TIFFTAG_YCBCRCOEFFICIENTS 529 /* !RGB -> YCbCr transform */ -#define TIFFTAG_YCBCRSUBSAMPLING 530 /* !YCbCr subsampling factors */ -#define TIFFTAG_YCBCRPOSITIONING 531 /* !subsample positioning */ -#define YCBCRPOSITION_CENTERED 1 /* !as in PostScript Level 2 */ -#define YCBCRPOSITION_COSITED 2 /* !as in CCIR 601-1 */ -#define TIFFTAG_REFERENCEBLACKWHITE 532 /* !colorimetry info */ -#define TIFFTAG_STRIPROWCOUNTS 559 /* !TIFF/FX strip row counts */ -#define TIFFTAG_XMLPACKET 700 /* %XML packet - [Adobe XMP Specification, - January 2004 */ -#define TIFFTAG_OPIIMAGEID 32781 /* %OPI ImageID - [Adobe TIFF technote] */ -/* tags 32952-32956 are private tags registered to Island Graphics */ -#define TIFFTAG_REFPTS 32953 /* image reference points */ -#define TIFFTAG_REGIONTACKPOINT 32954 /* region-xform tack point */ -#define TIFFTAG_REGIONWARPCORNERS 32955 /* warp quadrilateral */ -#define TIFFTAG_REGIONAFFINE 32956 /* affine transformation mat */ -/* tags 32995-32999 are private tags registered to SGI */ -#define TIFFTAG_MATTEING 32995 /* $use ExtraSamples */ -#define TIFFTAG_DATATYPE 32996 /* $use SampleFormat */ -#define TIFFTAG_IMAGEDEPTH 32997 /* z depth of image */ -#define TIFFTAG_TILEDEPTH 32998 /* z depth/data tile */ -/* tags 33300-33309 are private tags registered to Pixar */ -/* - * TIFFTAG_PIXAR_IMAGEFULLWIDTH and TIFFTAG_PIXAR_IMAGEFULLLENGTH - * are set when an image has been cropped out of a larger image. - * They reflect the size of the original uncropped image. - * The TIFFTAG_XPOSITION and TIFFTAG_YPOSITION can be used - * to determine the position of the smaller image in the larger one. - */ -#define TIFFTAG_PIXAR_IMAGEFULLWIDTH 33300 /* full image size in x */ -#define TIFFTAG_PIXAR_IMAGEFULLLENGTH 33301 /* full image size in y */ - /* Tags 33302-33306 are used to identify special image modes and data - * used by Pixar's texture formats. - */ -#define TIFFTAG_PIXAR_TEXTUREFORMAT 33302 /* texture map format */ -#define TIFFTAG_PIXAR_WRAPMODES 33303 /* s & t wrap modes */ -#define TIFFTAG_PIXAR_FOVCOT 33304 /* cotan(fov) for env. maps */ -#define TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN 33305 -#define TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA 33306 -/* tag 33405 is a private tag registered to Eastman Kodak */ -#define TIFFTAG_WRITERSERIALNUMBER 33405 /* device serial number */ -#define TIFFTAG_CFAREPEATPATTERNDIM 33421 /* dimensions of CFA pattern */ -#define TIFFTAG_CFAPATTERN 33422 /* color filter array pattern */ -/* tag 33432 is listed in the 6.0 spec w/ unknown ownership */ -#define TIFFTAG_COPYRIGHT 33432 /* copyright string */ -/* IPTC TAG from RichTIFF specifications */ -#define TIFFTAG_RICHTIFFIPTC 33723 -/* 34016-34029 are reserved for ANSI IT8 TIFF/IT */ -#define TIFFTAG_STONITS 37439 /* Sample value to Nits */ -/* tag 34929 is a private tag registered to FedEx */ -#define TIFFTAG_FEDEX_EDR 34929 /* unknown use */ -#define TIFFTAG_INTEROPERABILITYIFD 40965 /* Pointer to Interoperability private directory */ -/* Adobe Digital Negative (DNG) format tags */ -#define TIFFTAG_DNGVERSION 50706 /* &DNG version number */ -#define TIFFTAG_DNGBACKWARDVERSION 50707 /* &DNG compatibility version */ -#define TIFFTAG_UNIQUECAMERAMODEL 50708 /* &name for the camera model */ -#define TIFFTAG_LOCALIZEDCAMERAMODEL 50709 /* &localized camera model - name */ -#define TIFFTAG_CFAPLANECOLOR 50710 /* &CFAPattern->LinearRaw space - mapping */ -#define TIFFTAG_CFALAYOUT 50711 /* &spatial layout of the CFA */ -#define TIFFTAG_LINEARIZATIONTABLE 50712 /* &lookup table description */ -#define TIFFTAG_BLACKLEVELREPEATDIM 50713 /* &repeat pattern size for - the BlackLevel tag */ -#define TIFFTAG_BLACKLEVEL 50714 /* &zero light encoding level */ -#define TIFFTAG_BLACKLEVELDELTAH 50715 /* &zero light encoding level - differences (columns) */ -#define TIFFTAG_BLACKLEVELDELTAV 50716 /* &zero light encoding level - differences (rows) */ -#define TIFFTAG_WHITELEVEL 50717 /* &fully saturated encoding - level */ -#define TIFFTAG_DEFAULTSCALE 50718 /* &default scale factors */ -#define TIFFTAG_DEFAULTCROPORIGIN 50719 /* &origin of the final image - area */ -#define TIFFTAG_DEFAULTCROPSIZE 50720 /* &size of the final image - area */ -#define TIFFTAG_COLORMATRIX1 50721 /* &XYZ->reference color space - transformation matrix 1 */ -#define TIFFTAG_COLORMATRIX2 50722 /* &XYZ->reference color space - transformation matrix 2 */ -#define TIFFTAG_CAMERACALIBRATION1 50723 /* &calibration matrix 1 */ -#define TIFFTAG_CAMERACALIBRATION2 50724 /* &calibration matrix 2 */ -#define TIFFTAG_REDUCTIONMATRIX1 50725 /* &dimensionality reduction - matrix 1 */ -#define TIFFTAG_REDUCTIONMATRIX2 50726 /* &dimensionality reduction - matrix 2 */ -#define TIFFTAG_ANALOGBALANCE 50727 /* &gain applied the stored raw - values*/ -#define TIFFTAG_ASSHOTNEUTRAL 50728 /* &selected white balance in - linear reference space */ -#define TIFFTAG_ASSHOTWHITEXY 50729 /* &selected white balance in - x-y chromaticity - coordinates */ -#define TIFFTAG_BASELINEEXPOSURE 50730 /* &how much to move the zero - point */ -#define TIFFTAG_BASELINENOISE 50731 /* &relative noise level */ -#define TIFFTAG_BASELINESHARPNESS 50732 /* &relative amount of - sharpening */ -#define TIFFTAG_BAYERGREENSPLIT 50733 /* &how closely the values of - the green pixels in the - blue/green rows track the - values of the green pixels - in the red/green rows */ -#define TIFFTAG_LINEARRESPONSELIMIT 50734 /* &non-linear encoding range */ -#define TIFFTAG_CAMERASERIALNUMBER 50735 /* &camera's serial number */ -#define TIFFTAG_LENSINFO 50736 /* info about the lens */ -#define TIFFTAG_CHROMABLURRADIUS 50737 /* &chroma blur radius */ -#define TIFFTAG_ANTIALIASSTRENGTH 50738 /* &relative strength of the - camera's anti-alias filter */ -#define TIFFTAG_SHADOWSCALE 50739 /* &used by Adobe Camera Raw */ -#define TIFFTAG_DNGPRIVATEDATA 50740 /* &manufacturer's private data */ -#define TIFFTAG_MAKERNOTESAFETY 50741 /* &whether the EXIF MakerNote - tag is safe to preserve - along with the rest of the - EXIF data */ -#define TIFFTAG_CALIBRATIONILLUMINANT1 50778 /* &illuminant 1 */ -#define TIFFTAG_CALIBRATIONILLUMINANT2 50779 /* &illuminant 2 */ -#define TIFFTAG_BESTQUALITYSCALE 50780 /* &best quality multiplier */ -#define TIFFTAG_RAWDATAUNIQUEID 50781 /* &unique identifier for - the raw image data */ -#define TIFFTAG_ORIGINALRAWFILENAME 50827 /* &file name of the original - raw file */ -#define TIFFTAG_ORIGINALRAWFILEDATA 50828 /* &contents of the original - raw file */ -#define TIFFTAG_ACTIVEAREA 50829 /* &active (non-masked) pixels - of the sensor */ -#define TIFFTAG_MASKEDAREAS 50830 /* &list of coordinates - of fully masked pixels */ -#define TIFFTAG_ASSHOTICCPROFILE 50831 /* &these two tags used to */ -#define TIFFTAG_ASSHOTPREPROFILEMATRIX 50832 /* map cameras's color space - into ICC profile space */ -#define TIFFTAG_CURRENTICCPROFILE 50833 /* & */ -#define TIFFTAG_CURRENTPREPROFILEMATRIX 50834 /* & */ -/* tag 65535 is an undefined tag used by Eastman Kodak */ -#define TIFFTAG_DCSHUESHIFTVALUES 65535 /* hue shift correction data */ - -/* - * The following are ``pseudo tags'' that can be used to control - * codec-specific functionality. These tags are not written to file. - * Note that these values start at 0xffff+1 so that they'll never - * collide with Aldus-assigned tags. - * - * If you want your private pseudo tags ``registered'' (i.e. added to - * this file), please post a bug report via the tracking system at - * http://www.remotesensing.org/libtiff/bugs.html with the appropriate - * C definitions to add. - */ -#define TIFFTAG_FAXMODE 65536 /* Group 3/4 format control */ -#define FAXMODE_CLASSIC 0x0000 /* default, include RTC */ -#define FAXMODE_NORTC 0x0001 /* no RTC at end of data */ -#define FAXMODE_NOEOL 0x0002 /* no EOL code at end of row */ -#define FAXMODE_BYTEALIGN 0x0004 /* byte align row */ -#define FAXMODE_WORDALIGN 0x0008 /* word align row */ -#define FAXMODE_CLASSF FAXMODE_NORTC /* TIFF Class F */ -#define TIFFTAG_JPEGQUALITY 65537 /* Compression quality level */ -/* Note: quality level is on the IJG 0-100 scale. Default value is 75 */ -#define TIFFTAG_JPEGCOLORMODE 65538 /* Auto RGB<=>YCbCr convert? */ -#define JPEGCOLORMODE_RAW 0x0000 /* no conversion (default) */ -#define JPEGCOLORMODE_RGB 0x0001 /* do auto conversion */ -#define TIFFTAG_JPEGTABLESMODE 65539 /* What to put in JPEGTables */ -#define JPEGTABLESMODE_QUANT 0x0001 /* include quantization tbls */ -#define JPEGTABLESMODE_HUFF 0x0002 /* include Huffman tbls */ -/* Note: default is JPEGTABLESMODE_QUANT | JPEGTABLESMODE_HUFF */ -#define TIFFTAG_FAXFILLFUNC 65540 /* G3/G4 fill function */ -#define TIFFTAG_PIXARLOGDATAFMT 65549 /* PixarLogCodec I/O data sz */ -#define PIXARLOGDATAFMT_8BIT 0 /* regular u_char samples */ -#define PIXARLOGDATAFMT_8BITABGR 1 /* ABGR-order u_chars */ -#define PIXARLOGDATAFMT_11BITLOG 2 /* 11-bit log-encoded (raw) */ -#define PIXARLOGDATAFMT_12BITPICIO 3 /* as per PICIO (1.0==2048) */ -#define PIXARLOGDATAFMT_16BIT 4 /* signed short samples */ -#define PIXARLOGDATAFMT_FLOAT 5 /* IEEE float samples */ -/* 65550-65556 are allocated to Oceana Matrix */ -#define TIFFTAG_DCSIMAGERTYPE 65550 /* imager model & filter */ -#define DCSIMAGERMODEL_M3 0 /* M3 chip (1280 x 1024) */ -#define DCSIMAGERMODEL_M5 1 /* M5 chip (1536 x 1024) */ -#define DCSIMAGERMODEL_M6 2 /* M6 chip (3072 x 2048) */ -#define DCSIMAGERFILTER_IR 0 /* infrared filter */ -#define DCSIMAGERFILTER_MONO 1 /* monochrome filter */ -#define DCSIMAGERFILTER_CFA 2 /* color filter array */ -#define DCSIMAGERFILTER_OTHER 3 /* other filter */ -#define TIFFTAG_DCSINTERPMODE 65551 /* interpolation mode */ -#define DCSINTERPMODE_NORMAL 0x0 /* whole image, default */ -#define DCSINTERPMODE_PREVIEW 0x1 /* preview of image (384x256) */ -#define TIFFTAG_DCSBALANCEARRAY 65552 /* color balance values */ -#define TIFFTAG_DCSCORRECTMATRIX 65553 /* color correction values */ -#define TIFFTAG_DCSGAMMA 65554 /* gamma value */ -#define TIFFTAG_DCSTOESHOULDERPTS 65555 /* toe & shoulder points */ -#define TIFFTAG_DCSCALIBRATIONFD 65556 /* calibration file desc */ -/* Note: quality level is on the ZLIB 1-9 scale. Default value is -1 */ -#define TIFFTAG_ZIPQUALITY 65557 /* compression quality level */ -#define TIFFTAG_PIXARLOGQUALITY 65558 /* PixarLog uses same scale */ -/* 65559 is allocated to Oceana Matrix */ -#define TIFFTAG_DCSCLIPRECTANGLE 65559 /* area of image to acquire */ -#define TIFFTAG_SGILOGDATAFMT 65560 /* SGILog user data format */ -#define SGILOGDATAFMT_FLOAT 0 /* IEEE float samples */ -#define SGILOGDATAFMT_16BIT 1 /* 16-bit samples */ -#define SGILOGDATAFMT_RAW 2 /* uninterpreted data */ -#define SGILOGDATAFMT_8BIT 3 /* 8-bit RGB monitor values */ -#define TIFFTAG_SGILOGENCODE 65561 /* SGILog data encoding control*/ -#define SGILOGENCODE_NODITHER 0 /* do not dither encoded values*/ -#define SGILOGENCODE_RANDITHER 1 /* randomly dither encd values */ -#define TIFFTAG_LZMAPRESET 65562 /* LZMA2 preset (compression level) */ -#define TIFFTAG_PERSAMPLE 65563 /* interface for per sample tags */ -#define PERSAMPLE_MERGED 0 /* present as a single value */ -#define PERSAMPLE_MULTI 1 /* present as multiple values */ - -/* - * EXIF tags - */ -#define EXIFTAG_EXPOSURETIME 33434 /* Exposure time */ -#define EXIFTAG_FNUMBER 33437 /* F number */ -#define EXIFTAG_EXPOSUREPROGRAM 34850 /* Exposure program */ -#define EXIFTAG_SPECTRALSENSITIVITY 34852 /* Spectral sensitivity */ -#define EXIFTAG_ISOSPEEDRATINGS 34855 /* ISO speed rating */ -#define EXIFTAG_OECF 34856 /* Optoelectric conversion - factor */ -#define EXIFTAG_EXIFVERSION 36864 /* Exif version */ -#define EXIFTAG_DATETIMEORIGINAL 36867 /* Date and time of original - data generation */ -#define EXIFTAG_DATETIMEDIGITIZED 36868 /* Date and time of digital - data generation */ -#define EXIFTAG_COMPONENTSCONFIGURATION 37121 /* Meaning of each component */ -#define EXIFTAG_COMPRESSEDBITSPERPIXEL 37122 /* Image compression mode */ -#define EXIFTAG_SHUTTERSPEEDVALUE 37377 /* Shutter speed */ -#define EXIFTAG_APERTUREVALUE 37378 /* Aperture */ -#define EXIFTAG_BRIGHTNESSVALUE 37379 /* Brightness */ -#define EXIFTAG_EXPOSUREBIASVALUE 37380 /* Exposure bias */ -#define EXIFTAG_MAXAPERTUREVALUE 37381 /* Maximum lens aperture */ -#define EXIFTAG_SUBJECTDISTANCE 37382 /* Subject distance */ -#define EXIFTAG_METERINGMODE 37383 /* Metering mode */ -#define EXIFTAG_LIGHTSOURCE 37384 /* Light source */ -#define EXIFTAG_FLASH 37385 /* Flash */ -#define EXIFTAG_FOCALLENGTH 37386 /* Lens focal length */ -#define EXIFTAG_SUBJECTAREA 37396 /* Subject area */ -#define EXIFTAG_MAKERNOTE 37500 /* Manufacturer notes */ -#define EXIFTAG_USERCOMMENT 37510 /* User comments */ -#define EXIFTAG_SUBSECTIME 37520 /* DateTime subseconds */ -#define EXIFTAG_SUBSECTIMEORIGINAL 37521 /* DateTimeOriginal subseconds */ -#define EXIFTAG_SUBSECTIMEDIGITIZED 37522 /* DateTimeDigitized subseconds */ -#define EXIFTAG_FLASHPIXVERSION 40960 /* Supported Flashpix version */ -#define EXIFTAG_COLORSPACE 40961 /* Color space information */ -#define EXIFTAG_PIXELXDIMENSION 40962 /* Valid image width */ -#define EXIFTAG_PIXELYDIMENSION 40963 /* Valid image height */ -#define EXIFTAG_RELATEDSOUNDFILE 40964 /* Related audio file */ -#define EXIFTAG_FLASHENERGY 41483 /* Flash energy */ -#define EXIFTAG_SPATIALFREQUENCYRESPONSE 41484 /* Spatial frequency response */ -#define EXIFTAG_FOCALPLANEXRESOLUTION 41486 /* Focal plane X resolution */ -#define EXIFTAG_FOCALPLANEYRESOLUTION 41487 /* Focal plane Y resolution */ -#define EXIFTAG_FOCALPLANERESOLUTIONUNIT 41488 /* Focal plane resolution unit */ -#define EXIFTAG_SUBJECTLOCATION 41492 /* Subject location */ -#define EXIFTAG_EXPOSUREINDEX 41493 /* Exposure index */ -#define EXIFTAG_SENSINGMETHOD 41495 /* Sensing method */ -#define EXIFTAG_FILESOURCE 41728 /* File source */ -#define EXIFTAG_SCENETYPE 41729 /* Scene type */ -#define EXIFTAG_CFAPATTERN 41730 /* CFA pattern */ -#define EXIFTAG_CUSTOMRENDERED 41985 /* Custom image processing */ -#define EXIFTAG_EXPOSUREMODE 41986 /* Exposure mode */ -#define EXIFTAG_WHITEBALANCE 41987 /* White balance */ -#define EXIFTAG_DIGITALZOOMRATIO 41988 /* Digital zoom ratio */ -#define EXIFTAG_FOCALLENGTHIN35MMFILM 41989 /* Focal length in 35 mm film */ -#define EXIFTAG_SCENECAPTURETYPE 41990 /* Scene capture type */ -#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ -#define EXIFTAG_CONTRAST 41992 /* Contrast */ -#define EXIFTAG_SATURATION 41993 /* Saturation */ -#define EXIFTAG_SHARPNESS 41994 /* Sharpness */ -#define EXIFTAG_DEVICESETTINGDESCRIPTION 41995 /* Device settings description */ -#define EXIFTAG_SUBJECTDISTANCERANGE 41996 /* Subject distance range */ -#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ -#define EXIFTAG_GAINCONTROL 41991 /* Gain control */ -#define EXIFTAG_IMAGEUNIQUEID 42016 /* Unique image ID */ - -#endif /* _TIFF_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffconf.h.in b/tiff/libtiff/tiffconf.h.in deleted file mode 100755 index 6da9c5a..0000000 --- a/tiff/libtiff/tiffconf.h.in +++ /dev/null @@ -1,127 +0,0 @@ -/* - Configuration defines for installed libtiff. - This file maintained for backward compatibility. Do not use definitions - from this file in your programs. -*/ - -#ifndef _TIFFCONF_ -#define _TIFFCONF_ - -/* Signed 16-bit type */ -#undef TIFF_INT16_T - -/* Signed 32-bit type */ -#undef TIFF_INT32_T - -/* Signed 64-bit type */ -#undef TIFF_INT64_T - -/* Signed 8-bit type */ -#undef TIFF_INT8_T - -/* Unsigned 16-bit type */ -#undef TIFF_UINT16_T - -/* Unsigned 32-bit type */ -#undef TIFF_UINT32_T - -/* Unsigned 64-bit type */ -#undef TIFF_UINT64_T - -/* Unsigned 8-bit type */ -#undef TIFF_UINT8_T - -/* Signed size type */ -#undef TIFF_SSIZE_T - -/* Pointer difference type */ -#undef TIFF_PTRDIFF_T - -/* Define to 1 if the system has the type `int16'. */ -#undef HAVE_INT16 - -/* Define to 1 if the system has the type `int32'. */ -#undef HAVE_INT32 - -/* Define to 1 if the system has the type `int8'. */ -#undef HAVE_INT8 - -/* Compatibility stuff. */ - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#undef HAVE_IEEEFP - -/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ -#undef HOST_FILLORDER - -/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian - (Intel) */ -#undef HOST_BIGENDIAN - -/* Support CCITT Group 3 & 4 algorithms */ -#undef CCITT_SUPPORT - -/* Support JPEG compression (requires IJG JPEG library) */ -#undef JPEG_SUPPORT - -/* Support JBIG compression (requires JBIG-KIT library) */ -#undef JBIG_SUPPORT - -/* Support LogLuv high dynamic range encoding */ -#undef LOGLUV_SUPPORT - -/* Support LZW algorithm */ -#undef LZW_SUPPORT - -/* Support NeXT 2-bit RLE algorithm */ -#undef NEXT_SUPPORT - -/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation - fails with unpatched IJG JPEG library) */ -#undef OJPEG_SUPPORT - -/* Support Macintosh PackBits algorithm */ -#undef PACKBITS_SUPPORT - -/* Support Pixar log-format algorithm (requires Zlib) */ -#undef PIXARLOG_SUPPORT - -/* Support ThunderScan 4-bit RLE algorithm */ -#undef THUNDER_SUPPORT - -/* Support Deflate compression */ -#undef ZIP_SUPPORT - -/* Support strip chopping (whether or not to convert single-strip uncompressed - images to mutiple strips of ~8Kb to reduce memory usage) */ -#undef STRIPCHOP_DEFAULT - -/* Enable SubIFD tag (330) support */ -#undef SUBIFD_SUPPORT - -/* Treat extra sample as alpha (default enabled). The RGBA interface will - treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many - packages produce RGBA files but don't mark the alpha properly. */ -#undef DEFAULT_EXTRASAMPLE_AS_ALPHA - -/* Pick up YCbCr subsampling info from the JPEG data stream to support files - lacking the tag (default enabled). */ -#undef CHECK_JPEG_YCBCR_SUBSAMPLING - -/* Support MS MDI magic number files as TIFF */ -#undef MDI_SUPPORT - -/* - * Feature support definitions. - * XXX: These macros are obsoleted. Don't use them in your apps! - * Macros stays here for backward compatibility and should be always defined. - */ -#define COLORIMETRY_SUPPORT -#define YCBCR_SUPPORT -#define CMYK_SUPPORT -#define ICC_SUPPORT -#define PHOTOSHOP_SUPPORT -#define IPTC_SUPPORT - -#endif /* _TIFFCONF_ */ diff --git a/tiff/libtiff/tiffconf.vc.h b/tiff/libtiff/tiffconf.vc.h deleted file mode 100755 index f306276..0000000 --- a/tiff/libtiff/tiffconf.vc.h +++ /dev/null @@ -1,163 +0,0 @@ -/* - Configuration defines for installed libtiff. - This file maintained for backward compatibility. Do not use definitions - from this file in your programs. -*/ - -#ifndef _TIFFCONF_ -#define _TIFFCONF_ - -# define WIN32_LEAN_AND_MEAN -# include - -/* Define to 1 if the system has the type `int16'. */ -/* #undef HAVE_INT16 */ - -/* Define to 1 if the system has the type `int32'. */ -/* #undef HAVE_INT32 */ - -/* Define to 1 if the system has the type `int8'. */ -/* #undef HAVE_INT8 */ - -/* The size of a `int', as computed by sizeof. */ -#define SIZEOF_INT 4 - -/* Signed 8-bit type */ -#define TIFF_INT8_T signed __int8 - -/* Unsigned 8-bit type */ -#define TIFF_UINT8_T unsigned __int8 - -/* Signed 16-bit type */ -#define TIFF_INT16_T signed __int16 - -/* Unsigned 16-bit type */ -#define TIFF_UINT16_T unsigned __int16 - -/* Signed 32-bit type formatter */ -#define TIFF_INT32_FORMAT "%d" - -/* Signed 32-bit type */ -#define TIFF_INT32_T signed __int32 - -/* Unsigned 32-bit type formatter */ -#define TIFF_UINT32_FORMAT "%u" - -/* Unsigned 32-bit type */ -#define TIFF_UINT32_T unsigned __int32 - -/* Signed 64-bit type formatter */ -#define TIFF_INT64_FORMAT "%I64d" - -/* Signed 64-bit type */ -#define TIFF_INT64_T signed __int64 - -/* Unsigned 64-bit type formatter */ -#define TIFF_UINT64_FORMAT "%I64u" - -/* Unsigned 64-bit type */ -#define TIFF_UINT64_T unsigned __int64 - -/* Signed size type */ -#ifdef _WIN64 -# define TIFF_SSIZE_T signed __int64 -#else -# define TIFF_SSIZE_T signed __int32 -#endif - -/* Signed size type formatter */ -#if defined(_WIN64) -#define TIFF_SSIZE_FORMAT "%I64d" -#else -#define TIFF_SSIZE_FORMAT "%ld" -#endif - -/* Pointer difference type */ -#define TIFF_PTRDIFF_T long - -/* Compatibility stuff. */ - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#define HAVE_IEEEFP 1 - -/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ -#define HOST_FILLORDER FILLORDER_LSB2MSB - -/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian - (Intel) */ -#define HOST_BIGENDIAN 0 - -/* Support CCITT Group 3 & 4 algorithms */ -#define CCITT_SUPPORT 1 - -/* Support JPEG compression (requires IJG JPEG library) */ -/* #undef JPEG_SUPPORT */ - -/* Support JBIG compression (requires JBIG-KIT library) */ -/* #undef JBIG_SUPPORT */ - -/* Support LogLuv high dynamic range encoding */ -#define LOGLUV_SUPPORT 1 - -/* Support LZW algorithm */ -#define LZW_SUPPORT 1 - -/* Support NeXT 2-bit RLE algorithm */ -#define NEXT_SUPPORT 1 - -/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation - fails with unpatched IJG JPEG library) */ -/* #undef OJPEG_SUPPORT */ - -/* Support Macintosh PackBits algorithm */ -#define PACKBITS_SUPPORT 1 - -/* Support Pixar log-format algorithm (requires Zlib) */ -/* #undef PIXARLOG_SUPPORT */ - -/* Support ThunderScan 4-bit RLE algorithm */ -#define THUNDER_SUPPORT 1 - -/* Support Deflate compression */ -/* #undef ZIP_SUPPORT */ - -/* Support strip chopping (whether or not to convert single-strip uncompressed - images to mutiple strips of ~8Kb to reduce memory usage) */ -#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP - -/* Enable SubIFD tag (330) support */ -#define SUBIFD_SUPPORT 1 - -/* Treat extra sample as alpha (default enabled). The RGBA interface will - treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many - packages produce RGBA files but don't mark the alpha properly. */ -#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1 - -/* Pick up YCbCr subsampling info from the JPEG data stream to support files - lacking the tag (default enabled). */ -#define CHECK_JPEG_YCBCR_SUBSAMPLING 1 - -/* Support MS MDI magic number files as TIFF */ -/* #undef MDI_SUPPORT */ - -/* - * Feature support definitions. - * XXX: These macros are obsoleted. Don't use them in your apps! - * Macros stays here for backward compatibility and should be always defined. - */ -#define COLORIMETRY_SUPPORT -#define YCBCR_SUPPORT -#define CMYK_SUPPORT -#define ICC_SUPPORT -#define PHOTOSHOP_SUPPORT -#define IPTC_SUPPORT - -#endif /* _TIFFCONF_ */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffconf.wince.h b/tiff/libtiff/tiffconf.wince.h deleted file mode 100755 index 2ef3958..0000000 --- a/tiff/libtiff/tiffconf.wince.h +++ /dev/null @@ -1,121 +0,0 @@ -/* $Id: tiffconf.wince.h,v 1.3 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Windows CE platform tiffconf.wince.h - * Created by Mateusz Loskot (mateusz@loskot.net) - * - * NOTE: Requires WCELIBCEX library with wceex_* functions, - * It's an extension to C library on Windows CE platform. - * For example, HAVE_STDIO_H definition indicates there are - * following files available: - * stdio.h - from Windows CE / Windows Mobile SDK - * wce_stdio.h - from WCELIBCEX library - */ - - -/* - Configuration defines for installed libtiff. - This file maintained for backward compatibility. Do not use definitions - from this file in your programs. -*/ - -#ifndef _WIN32_WCE -# error This version of tif_config.h header is dedicated for Windows CE platform! -#endif - - -#ifndef _TIFFCONF_ -#define _TIFFCONF_ - -/* Define to 1 if the system has the type `int16'. */ -/* #undef HAVE_INT16 */ - -/* Define to 1 if the system has the type `int32'. */ -/* #undef HAVE_INT32 */ - -/* Define to 1 if the system has the type `int8'. */ -/* #undef HAVE_INT8 */ - -/* The size of a `int', as computed by sizeof. */ -#define SIZEOF_INT 4 - -/* Compatibility stuff. */ - -/* Define as 0 or 1 according to the floating point format suported by the - machine */ -#define HAVE_IEEEFP 1 - -/* Set the native cpu bit order (FILLORDER_LSB2MSB or FILLORDER_MSB2LSB) */ -#define HOST_FILLORDER FILLORDER_LSB2MSB - -/* Native cpu byte order: 1 if big-endian (Motorola) or 0 if little-endian - (Intel) */ -#define HOST_BIGENDIAN 0 - -/* Support CCITT Group 3 & 4 algorithms */ -#define CCITT_SUPPORT 1 - -/* Support JPEG compression (requires IJG JPEG library) */ -/* #undef JPEG_SUPPORT */ - -/* Support LogLuv high dynamic range encoding */ -#define LOGLUV_SUPPORT 1 - -/* Support LZW algorithm */ -#define LZW_SUPPORT 1 - -/* Support NeXT 2-bit RLE algorithm */ -#define NEXT_SUPPORT 1 - -/* Support Old JPEG compresson (read contrib/ojpeg/README first! Compilation - fails with unpatched IJG JPEG library) */ -/* #undef OJPEG_SUPPORT */ - -/* Support Macintosh PackBits algorithm */ -#define PACKBITS_SUPPORT 1 - -/* Support Pixar log-format algorithm (requires Zlib) */ -/* #undef PIXARLOG_SUPPORT */ - -/* Support ThunderScan 4-bit RLE algorithm */ -#define THUNDER_SUPPORT 1 - -/* Support Deflate compression */ -/* #undef ZIP_SUPPORT */ - -/* Support strip chopping (whether or not to convert single-strip uncompressed - images to mutiple strips of ~8Kb to reduce memory usage) */ -#define STRIPCHOP_DEFAULT TIFF_STRIPCHOP - -/* Enable SubIFD tag (330) support */ -#define SUBIFD_SUPPORT 1 - -/* Treat extra sample as alpha (default enabled). The RGBA interface will - treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many - packages produce RGBA files but don't mark the alpha properly. */ -#define DEFAULT_EXTRASAMPLE_AS_ALPHA 1 - -/* Pick up YCbCr subsampling info from the JPEG data stream to support files - lacking the tag (default enabled). */ -#define CHECK_JPEG_YCBCR_SUBSAMPLING 1 - -/* - * Feature support definitions. - * XXX: These macros are obsoleted. Don't use them in your apps! - * Macros stays here for backward compatibility and should be always defined. - */ -#define COLORIMETRY_SUPPORT -#define YCBCR_SUPPORT -#define CMYK_SUPPORT -#define ICC_SUPPORT -#define PHOTOSHOP_SUPPORT -#define IPTC_SUPPORT - -#endif /* _TIFFCONF_ */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffio.h b/tiff/libtiff/tiffio.h deleted file mode 100755 index c31b74d..0000000 --- a/tiff/libtiff/tiffio.h +++ /dev/null @@ -1,560 +0,0 @@ -/* $Id: tiffio.h,v 1.91 2012-07-29 15:45:29 tgl Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFIO_ -#define _TIFFIO_ - -/* - * TIFF I/O Library Definitions. - */ -#include "tiff.h" -#include "tiffvers.h" - -/* - * TIFF is defined as an incomplete type to hide the - * library's internal data structures from clients. - */ -typedef struct tiff TIFF; - -/* - * The following typedefs define the intrinsic size of - * data types used in the *exported* interfaces. These - * definitions depend on the proper definition of types - * in tiff.h. Note also that the varargs interface used - * to pass tag types and values uses the types defined in - * tiff.h directly. - * - * NB: ttag_t is unsigned int and not unsigned short because - * ANSI C requires that the type before the ellipsis be a - * promoted type (i.e. one of int, unsigned int, pointer, - * or double) and because we defined pseudo-tags that are - * outside the range of legal Aldus-assigned tags. - * NB: tsize_t is int32 and not uint32 because some functions - * return -1. - * NB: toff_t is not off_t for many reasons; TIFFs max out at - * 32-bit file offsets, and BigTIFF maxes out at 64-bit - * offsets being the most important, and to ensure use of - * a consistently unsigned type across architectures. - * Prior to libtiff 4.0, this was an unsigned 32 bit type. - */ -/* - * this is the machine addressing size type, only it's signed, so make it - * int32 on 32bit machines, int64 on 64bit machines - */ -typedef TIFF_SSIZE_T tmsize_t; -typedef uint64 toff_t; /* file offset */ -/* the following are deprecated and should be replaced by their defining - counterparts */ -typedef uint32 ttag_t; /* directory tag */ -typedef uint16 tdir_t; /* directory index */ -typedef uint16 tsample_t; /* sample number */ -typedef uint32 tstrile_t; /* strip or tile number */ -typedef tstrile_t tstrip_t; /* strip number */ -typedef tstrile_t ttile_t; /* tile number */ -typedef tmsize_t tsize_t; /* i/o size in bytes */ -typedef void* tdata_t; /* image data ref */ - -#if !defined(__WIN32__) && (defined(_WIN32) || defined(WIN32)) -#define __WIN32__ -#endif - -/* - * On windows you should define USE_WIN32_FILEIO if you are using tif_win32.c - * or AVOID_WIN32_FILEIO if you are using something else (like tif_unix.c). - * - * By default tif_unix.c is assumed. - */ - -#if defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows) -# if !defined(__CYGWIN) && !defined(AVOID_WIN32_FILEIO) && !defined(USE_WIN32_FILEIO) -# define AVOID_WIN32_FILEIO -# endif -#endif - -#if defined(USE_WIN32_FILEIO) -# define VC_EXTRALEAN -# include -# ifdef __WIN32__ -DECLARE_HANDLE(thandle_t); /* Win32 file handle */ -# else -typedef HFILE thandle_t; /* client data handle */ -# endif /* __WIN32__ */ -typedef thandle_t tfd_t; /* File descriptor type */ -#else -typedef void* thandle_t; /* client data handle */ -typedef int tfd_t; /* File descriptor type */ -#endif /* USE_WIN32_FILEIO */ - - -/* - * Flags to pass to TIFFPrintDirectory to control - * printing of data structures that are potentially - * very large. Bit-or these flags to enable printing - * multiple items. - */ -#define TIFFPRINT_NONE 0x0 /* no extra info */ -#define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ -#define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ -#define TIFFPRINT_COLORMAP 0x4 /* colormap */ -#define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ -#define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ -#define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ - -/* - * Colour conversion stuff - */ - -/* reference white */ -#define D65_X0 (95.0470F) -#define D65_Y0 (100.0F) -#define D65_Z0 (108.8827F) - -#define D50_X0 (96.4250F) -#define D50_Y0 (100.0F) -#define D50_Z0 (82.4680F) - -/* Structure for holding information about a display device. */ - -typedef unsigned char TIFFRGBValue; /* 8-bit samples */ - -typedef struct { - float d_mat[3][3]; /* XYZ -> luminance matrix */ - float d_YCR; /* Light o/p for reference white */ - float d_YCG; - float d_YCB; - uint32 d_Vrwr; /* Pixel values for ref. white */ - uint32 d_Vrwg; - uint32 d_Vrwb; - float d_Y0R; /* Residual light for black pixel */ - float d_Y0G; - float d_Y0B; - float d_gammaR; /* Gamma values for the three guns */ - float d_gammaG; - float d_gammaB; -} TIFFDisplay; - -typedef struct { /* YCbCr->RGB support */ - TIFFRGBValue* clamptab; /* range clamping table */ - int* Cr_r_tab; - int* Cb_b_tab; - int32* Cr_g_tab; - int32* Cb_g_tab; - int32* Y_tab; -} TIFFYCbCrToRGB; - -typedef struct { /* CIE Lab 1976->RGB support */ - int range; /* Size of conversion table */ -#define CIELABTORGB_TABLE_RANGE 1500 - float rstep, gstep, bstep; - float X0, Y0, Z0; /* Reference white point */ - TIFFDisplay display; - float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ - float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ - float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ -} TIFFCIELabToRGB; - -/* - * RGBA-style image support. - */ -typedef struct _TIFFRGBAImage TIFFRGBAImage; -/* - * The image reading and conversion routines invoke - * ``put routines'' to copy/image/whatever tiles of - * raw image data. A default set of routines are - * provided to convert/copy raw image data to 8-bit - * packed ABGR format rasters. Applications can supply - * alternate routines that unpack the data into a - * different format or, for example, unpack the data - * and draw the unpacked raster on the display. - */ -typedef void (*tileContigRoutine) - (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, - unsigned char*); -typedef void (*tileSeparateRoutine) - (TIFFRGBAImage*, uint32*, uint32, uint32, uint32, uint32, int32, int32, - unsigned char*, unsigned char*, unsigned char*, unsigned char*); -/* - * RGBA-reader state. - */ -struct _TIFFRGBAImage { - TIFF* tif; /* image handle */ - int stoponerr; /* stop on read error */ - int isContig; /* data is packed/separate */ - int alpha; /* type of alpha data present */ - uint32 width; /* image width */ - uint32 height; /* image height */ - uint16 bitspersample; /* image bits/sample */ - uint16 samplesperpixel; /* image samples/pixel */ - uint16 orientation; /* image orientation */ - uint16 req_orientation; /* requested orientation */ - uint16 photometric; /* image photometric interp */ - uint16* redcmap; /* colormap pallete */ - uint16* greencmap; - uint16* bluecmap; - /* get image data routine */ - int (*get)(TIFFRGBAImage*, uint32*, uint32, uint32); - /* put decoded strip/tile */ - union { - void (*any)(TIFFRGBAImage*); - tileContigRoutine contig; - tileSeparateRoutine separate; - } put; - TIFFRGBValue* Map; /* sample mapping array */ - uint32** BWmap; /* black&white map */ - uint32** PALmap; /* palette image map */ - TIFFYCbCrToRGB* ycbcr; /* YCbCr conversion state */ - TIFFCIELabToRGB* cielab; /* CIE L*a*b conversion state */ - - uint8* UaToAa; /* Unassociated alpha to associated alpha convertion LUT */ - uint8* Bitdepth16To8; /* LUT for conversion from 16bit to 8bit values */ - - int row_offset; - int col_offset; -}; - -/* - * Macros for extracting components from the - * packed ABGR form returned by TIFFReadRGBAImage. - */ -#define TIFFGetR(abgr) ((abgr) & 0xff) -#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff) -#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff) -#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff) - -/* - * A CODEC is a software package that implements decoding, - * encoding, or decoding+encoding of a compression algorithm. - * The library provides a collection of builtin codecs. - * More codecs may be registered through calls to the library - * and/or the builtin implementations may be overridden. - */ -typedef int (*TIFFInitMethod)(TIFF*, int); -typedef struct { - char* name; - uint16 scheme; - TIFFInitMethod init; -} TIFFCodec; - -#include -#include - -/* share internal LogLuv conversion routines? */ -#ifndef LOGLUV_PUBLIC -#define LOGLUV_PUBLIC 1 -#endif - -#if !defined(__GNUC__) && !defined(__attribute__) -# define __attribute__(x) /*nothing*/ -#endif - -#if defined(c_plusplus) || defined(__cplusplus) -extern "C" { -#endif -typedef void (*TIFFErrorHandler)(const char*, const char*, va_list); -typedef void (*TIFFErrorHandlerExt)(thandle_t, const char*, const char*, va_list); -typedef tmsize_t (*TIFFReadWriteProc)(thandle_t, void*, tmsize_t); -typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int); -typedef int (*TIFFCloseProc)(thandle_t); -typedef toff_t (*TIFFSizeProc)(thandle_t); -typedef int (*TIFFMapFileProc)(thandle_t, void** base, toff_t* size); -typedef void (*TIFFUnmapFileProc)(thandle_t, void* base, toff_t size); -typedef void (*TIFFExtendProc)(TIFF*); - -extern const char* TIFFGetVersion(void); - -extern const TIFFCodec* TIFFFindCODEC(uint16); -extern TIFFCodec* TIFFRegisterCODEC(uint16, const char*, TIFFInitMethod); -extern void TIFFUnRegisterCODEC(TIFFCodec*); -extern int TIFFIsCODECConfigured(uint16); -extern TIFFCodec* TIFFGetConfiguredCODECs(void); - -/* - * Auxiliary functions. - */ - -extern void* _TIFFmalloc(tmsize_t s); -extern void* _TIFFrealloc(void* p, tmsize_t s); -extern void _TIFFmemset(void* p, int v, tmsize_t c); -extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c); -extern int _TIFFmemcmp(const void* p1, const void* p2, tmsize_t c); -extern void _TIFFfree(void* p); - -/* -** Stuff, related to tag handling and creating custom tags. -*/ -extern int TIFFGetTagListCount( TIFF * ); -extern uint32 TIFFGetTagListEntry( TIFF *, int tag_index ); - -#define TIFF_ANY TIFF_NOTYPE /* for field descriptor searching */ -#define TIFF_VARIABLE -1 /* marker for variable length tags */ -#define TIFF_SPP -2 /* marker for SamplesPerPixel tags */ -#define TIFF_VARIABLE2 -3 /* marker for uint32 var-length tags */ - -#define FIELD_CUSTOM 65 - -typedef struct _TIFFField TIFFField; -typedef struct _TIFFFieldArray TIFFFieldArray; - -extern const TIFFField* TIFFFindField(TIFF *, uint32, TIFFDataType); -extern const TIFFField* TIFFFieldWithTag(TIFF*, uint32); -extern const TIFFField* TIFFFieldWithName(TIFF*, const char *); - -extern uint32 TIFFFieldTag(const TIFFField*); -extern const char* TIFFFieldName(const TIFFField*); -extern TIFFDataType TIFFFieldDataType(const TIFFField*); -extern int TIFFFieldPassCount(const TIFFField*); -extern int TIFFFieldReadCount(const TIFFField*); -extern int TIFFFieldWriteCount(const TIFFField*); - -typedef int (*TIFFVSetMethod)(TIFF*, uint32, va_list); -typedef int (*TIFFVGetMethod)(TIFF*, uint32, va_list); -typedef void (*TIFFPrintMethod)(TIFF*, FILE*, long); - -typedef struct { - TIFFVSetMethod vsetfield; /* tag set routine */ - TIFFVGetMethod vgetfield; /* tag get routine */ - TIFFPrintMethod printdir; /* directory print routine */ -} TIFFTagMethods; - -extern TIFFTagMethods *TIFFAccessTagMethods(TIFF *); -extern void *TIFFGetClientInfo(TIFF *, const char *); -extern void TIFFSetClientInfo(TIFF *, void *, const char *); - -extern void TIFFCleanup(TIFF* tif); -extern void TIFFClose(TIFF* tif); -extern int TIFFFlush(TIFF* tif); -extern int TIFFFlushData(TIFF* tif); -extern int TIFFGetField(TIFF* tif, uint32 tag, ...); -extern int TIFFVGetField(TIFF* tif, uint32 tag, va_list ap); -extern int TIFFGetFieldDefaulted(TIFF* tif, uint32 tag, ...); -extern int TIFFVGetFieldDefaulted(TIFF* tif, uint32 tag, va_list ap); -extern int TIFFReadDirectory(TIFF* tif); -extern int TIFFReadCustomDirectory(TIFF* tif, toff_t diroff, const TIFFFieldArray* infoarray); -extern int TIFFReadEXIFDirectory(TIFF* tif, toff_t diroff); -extern uint64 TIFFScanlineSize64(TIFF* tif); -extern tmsize_t TIFFScanlineSize(TIFF* tif); -extern uint64 TIFFRasterScanlineSize64(TIFF* tif); -extern tmsize_t TIFFRasterScanlineSize(TIFF* tif); -extern uint64 TIFFStripSize64(TIFF* tif); -extern tmsize_t TIFFStripSize(TIFF* tif); -extern uint64 TIFFRawStripSize64(TIFF* tif, uint32 strip); -extern tmsize_t TIFFRawStripSize(TIFF* tif, uint32 strip); -extern uint64 TIFFVStripSize64(TIFF* tif, uint32 nrows); -extern tmsize_t TIFFVStripSize(TIFF* tif, uint32 nrows); -extern uint64 TIFFTileRowSize64(TIFF* tif); -extern tmsize_t TIFFTileRowSize(TIFF* tif); -extern uint64 TIFFTileSize64(TIFF* tif); -extern tmsize_t TIFFTileSize(TIFF* tif); -extern uint64 TIFFVTileSize64(TIFF* tif, uint32 nrows); -extern tmsize_t TIFFVTileSize(TIFF* tif, uint32 nrows); -extern uint32 TIFFDefaultStripSize(TIFF* tif, uint32 request); -extern void TIFFDefaultTileSize(TIFF*, uint32*, uint32*); -extern tfd_t TIFFFileno(TIFF*); -extern tfd_t TIFFSetFileno(TIFF*, tfd_t); -extern thandle_t TIFFClientdata(TIFF*); -extern thandle_t TIFFSetClientdata(TIFF*, thandle_t); -extern int TIFFGetMode(TIFF*); -extern int TIFFSetMode(TIFF*, int); -extern int TIFFIsTiled(TIFF*); -extern int TIFFIsByteSwapped(TIFF*); -extern int TIFFIsUpSampled(TIFF*); -extern int TIFFIsMSB2LSB(TIFF*); -extern int TIFFIsBigEndian(TIFF*); -extern TIFFReadWriteProc TIFFGetReadProc(TIFF*); -extern TIFFReadWriteProc TIFFGetWriteProc(TIFF*); -extern TIFFSeekProc TIFFGetSeekProc(TIFF*); -extern TIFFCloseProc TIFFGetCloseProc(TIFF*); -extern TIFFSizeProc TIFFGetSizeProc(TIFF*); -extern TIFFMapFileProc TIFFGetMapFileProc(TIFF*); -extern TIFFUnmapFileProc TIFFGetUnmapFileProc(TIFF*); -extern uint32 TIFFCurrentRow(TIFF*); -extern uint16 TIFFCurrentDirectory(TIFF*); -extern uint16 TIFFNumberOfDirectories(TIFF*); -extern uint64 TIFFCurrentDirOffset(TIFF*); -extern uint32 TIFFCurrentStrip(TIFF*); -extern uint32 TIFFCurrentTile(TIFF* tif); -extern int TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size); -extern int TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size); -extern int TIFFSetupStrips(TIFF *); -extern int TIFFWriteCheck(TIFF*, int, const char *); -extern void TIFFFreeDirectory(TIFF*); -extern int TIFFCreateDirectory(TIFF*); -extern int TIFFCreateCustomDirectory(TIFF*,const TIFFFieldArray*); -extern int TIFFCreateEXIFDirectory(TIFF*); -extern int TIFFLastDirectory(TIFF*); -extern int TIFFSetDirectory(TIFF*, uint16); -extern int TIFFSetSubDirectory(TIFF*, uint64); -extern int TIFFUnlinkDirectory(TIFF*, uint16); -extern int TIFFSetField(TIFF*, uint32, ...); -extern int TIFFVSetField(TIFF*, uint32, va_list); -extern int TIFFUnsetField(TIFF*, uint32); -extern int TIFFWriteDirectory(TIFF *); -extern int TIFFWriteCustomDirectory(TIFF *, uint64 *); -extern int TIFFCheckpointDirectory(TIFF *); -extern int TIFFRewriteDirectory(TIFF *); - -#if defined(c_plusplus) || defined(__cplusplus) -extern void TIFFPrintDirectory(TIFF*, FILE*, long = 0); -extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0); -extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample = 0); -extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int = 0); -extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, - int = ORIENTATION_BOTLEFT, int = 0); -#else -extern void TIFFPrintDirectory(TIFF*, FILE*, long); -extern int TIFFReadScanline(TIFF* tif, void* buf, uint32 row, uint16 sample); -extern int TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample); -extern int TIFFReadRGBAImage(TIFF*, uint32, uint32, uint32*, int); -extern int TIFFReadRGBAImageOriented(TIFF*, uint32, uint32, uint32*, int, int); -#endif - -extern int TIFFReadRGBAStrip(TIFF*, uint32, uint32 * ); -extern int TIFFReadRGBATile(TIFF*, uint32, uint32, uint32 * ); -extern int TIFFRGBAImageOK(TIFF*, char [1024]); -extern int TIFFRGBAImageBegin(TIFFRGBAImage*, TIFF*, int, char [1024]); -extern int TIFFRGBAImageGet(TIFFRGBAImage*, uint32*, uint32, uint32); -extern void TIFFRGBAImageEnd(TIFFRGBAImage*); -extern TIFF* TIFFOpen(const char*, const char*); -# ifdef __WIN32__ -extern TIFF* TIFFOpenW(const wchar_t*, const char*); -# endif /* __WIN32__ */ -extern TIFF* TIFFFdOpen(tfd_t, const char*, const char*); -extern TIFF* TIFFClientOpen(const char*, const char*, - thandle_t, - TIFFReadWriteProc, TIFFReadWriteProc, - TIFFSeekProc, TIFFCloseProc, - TIFFSizeProc, - TIFFMapFileProc, TIFFUnmapFileProc); -extern const char* TIFFFileName(TIFF*); -extern const char* TIFFSetFileName(TIFF*, const char *); -extern void TIFFError(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3))); -extern void TIFFErrorExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4))); -extern void TIFFWarning(const char*, const char*, ...) __attribute__((__format__ (__printf__,2,3))); -extern void TIFFWarningExt(thandle_t, const char*, const char*, ...) __attribute__((__format__ (__printf__,3,4))); -extern TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler); -extern TIFFErrorHandlerExt TIFFSetErrorHandlerExt(TIFFErrorHandlerExt); -extern TIFFErrorHandler TIFFSetWarningHandler(TIFFErrorHandler); -extern TIFFErrorHandlerExt TIFFSetWarningHandlerExt(TIFFErrorHandlerExt); -extern TIFFExtendProc TIFFSetTagExtender(TIFFExtendProc); -extern uint32 TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s); -extern int TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s); -extern uint32 TIFFNumberOfTiles(TIFF*); -extern tmsize_t TIFFReadTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s); -extern tmsize_t TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s); -extern uint32 TIFFComputeStrip(TIFF*, uint32, uint16); -extern uint32 TIFFNumberOfStrips(TIFF*); -extern tmsize_t TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size); -extern tmsize_t TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size); -extern tmsize_t TIFFReadEncodedTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size); -extern tmsize_t TIFFReadRawTile(TIFF* tif, uint32 tile, void* buf, tmsize_t size); -extern tmsize_t TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc); -extern tmsize_t TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc); -extern tmsize_t TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc); -extern tmsize_t TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc); -extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */ -extern void TIFFSetWriteOffset(TIFF* tif, toff_t off); -extern void TIFFSwabShort(uint16*); -extern void TIFFSwabLong(uint32*); -extern void TIFFSwabLong8(uint64*); -extern void TIFFSwabFloat(float*); -extern void TIFFSwabDouble(double*); -extern void TIFFSwabArrayOfShort(uint16* wp, tmsize_t n); -extern void TIFFSwabArrayOfTriples(uint8* tp, tmsize_t n); -extern void TIFFSwabArrayOfLong(uint32* lp, tmsize_t n); -extern void TIFFSwabArrayOfLong8(uint64* lp, tmsize_t n); -extern void TIFFSwabArrayOfFloat(float* fp, tmsize_t n); -extern void TIFFSwabArrayOfDouble(double* dp, tmsize_t n); -extern void TIFFReverseBits(uint8* cp, tmsize_t n); -extern const unsigned char* TIFFGetBitRevTable(int); - -#ifdef LOGLUV_PUBLIC -#define U_NEU 0.210526316 -#define V_NEU 0.473684211 -#define UVSCALE 410. -extern double LogL16toY(int); -extern double LogL10toY(int); -extern void XYZtoRGB24(float*, uint8*); -extern int uv_decode(double*, double*, int); -extern void LogLuv24toXYZ(uint32, float*); -extern void LogLuv32toXYZ(uint32, float*); -#if defined(c_plusplus) || defined(__cplusplus) -extern int LogL16fromY(double, int = SGILOGENCODE_NODITHER); -extern int LogL10fromY(double, int = SGILOGENCODE_NODITHER); -extern int uv_encode(double, double, int = SGILOGENCODE_NODITHER); -extern uint32 LogLuv24fromXYZ(float*, int = SGILOGENCODE_NODITHER); -extern uint32 LogLuv32fromXYZ(float*, int = SGILOGENCODE_NODITHER); -#else -extern int LogL16fromY(double, int); -extern int LogL10fromY(double, int); -extern int uv_encode(double, double, int); -extern uint32 LogLuv24fromXYZ(float*, int); -extern uint32 LogLuv32fromXYZ(float*, int); -#endif -#endif /* LOGLUV_PUBLIC */ - -extern int TIFFCIELabToRGBInit(TIFFCIELabToRGB*, const TIFFDisplay *, float*); -extern void TIFFCIELabToXYZ(TIFFCIELabToRGB *, uint32, int32, int32, - float *, float *, float *); -extern void TIFFXYZToRGB(TIFFCIELabToRGB *, float, float, float, - uint32 *, uint32 *, uint32 *); - -extern int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB*, float*, float*); -extern void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *, uint32, int32, int32, - uint32 *, uint32 *, uint32 *); - -/**************************************************************************** - * O B S O L E T E D I N T E R F A C E S - * - * Don't use this stuff in your applications, it may be removed in the future - * libtiff versions. - ****************************************************************************/ -typedef struct { - ttag_t field_tag; /* field's tag */ - short field_readcount; /* read count/TIFF_VARIABLE/TIFF_SPP */ - short field_writecount; /* write count/TIFF_VARIABLE */ - TIFFDataType field_type; /* type of associated data */ - unsigned short field_bit; /* bit in fieldsset bit vector */ - unsigned char field_oktochange; /* if true, can change while writing */ - unsigned char field_passcount; /* if true, pass dir count on set */ - char *field_name; /* ASCII name */ -} TIFFFieldInfo; - -extern int TIFFMergeFieldInfo(TIFF*, const TIFFFieldInfo[], uint32); - -#if defined(c_plusplus) || defined(__cplusplus) -} -#endif - -#endif /* _TIFFIO_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffio.hxx b/tiff/libtiff/tiffio.hxx deleted file mode 100755 index ed994f1..0000000 --- a/tiff/libtiff/tiffio.hxx +++ /dev/null @@ -1,49 +0,0 @@ -/* $Id: tiffio.hxx,v 1.3 2010-06-08 18:55:15 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFIO_HXX_ -#define _TIFFIO_HXX_ - -/* - * TIFF I/O library definitions which provide C++ streams API. - */ - -#include -#include "tiff.h" - -extern TIFF* TIFFStreamOpen(const char*, std::ostream *); -extern TIFF* TIFFStreamOpen(const char*, std::istream *); - -#endif /* _TIFFIO_HXX_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c++ - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffiop.h b/tiff/libtiff/tiffiop.h deleted file mode 100755 index 806ad55..0000000 --- a/tiff/libtiff/tiffiop.h +++ /dev/null @@ -1,367 +0,0 @@ -/* $Id: tiffiop.h,v 1.84 2012-05-30 01:50:17 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFIOP_ -#define _TIFFIOP_ -/* - * ``Library-private'' definitions. - */ - -#include "tif_config.h" - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_SYS_TYPES_H -# include -#endif - -#ifdef HAVE_STRING_H -# include -#endif - -#ifdef HAVE_ASSERT_H -# include -#else -# define assert(x) -#endif - -#ifdef HAVE_SEARCH_H -# include -#else -extern void *lfind(const void *, const void *, size_t *, size_t, - int (*)(const void *, const void *)); -#endif - -#include "tiffio.h" - -#include "tif_dir.h" - -#ifndef STRIP_SIZE_DEFAULT -# define STRIP_SIZE_DEFAULT 8192 -#endif - -#define streq(a,b) (strcmp(a,b) == 0) - -#ifndef TRUE -#define TRUE 1 -#define FALSE 0 -#endif - -typedef struct client_info { - struct client_info *next; - void *data; - char *name; -} TIFFClientInfoLink; - -/* - * Typedefs for ``method pointers'' used internally. - * these are depriciated and provided only for backwards compatibility - */ -typedef unsigned char tidataval_t; /* internal image data value type */ -typedef tidataval_t* tidata_t; /* reference to internal image data */ - -typedef void (*TIFFVoidMethod)(TIFF*); -typedef int (*TIFFBoolMethod)(TIFF*); -typedef int (*TIFFPreMethod)(TIFF*, uint16); -typedef int (*TIFFCodeMethod)(TIFF* tif, uint8* buf, tmsize_t size, uint16 sample); -typedef int (*TIFFSeekMethod)(TIFF*, uint32); -typedef void (*TIFFPostMethod)(TIFF* tif, uint8* buf, tmsize_t size); -typedef uint32 (*TIFFStripMethod)(TIFF*, uint32); -typedef void (*TIFFTileMethod)(TIFF*, uint32*, uint32*); - -struct tiff { - char* tif_name; /* name of open file */ - tfd_t tif_fd; /* open file descriptor */ - int tif_mode; /* open mode (O_*) */ - uint32 tif_flags; - #define TIFF_FILLORDER 0x00003 /* natural bit fill order for machine */ - #define TIFF_DIRTYHEADER 0x00004 /* header must be written on close */ - #define TIFF_DIRTYDIRECT 0x00008 /* current directory must be written */ - #define TIFF_BUFFERSETUP 0x00010 /* data buffers setup */ - #define TIFF_CODERSETUP 0x00020 /* encoder/decoder setup done */ - #define TIFF_BEENWRITING 0x00040 /* written 1+ scanlines to file */ - #define TIFF_SWAB 0x00080 /* byte swap file information */ - #define TIFF_NOBITREV 0x00100 /* inhibit bit reversal logic */ - #define TIFF_MYBUFFER 0x00200 /* my raw data buffer; free on close */ - #define TIFF_ISTILED 0x00400 /* file is tile, not strip- based */ - #define TIFF_MAPPED 0x00800 /* file is mapped into memory */ - #define TIFF_POSTENCODE 0x01000 /* need call to postencode routine */ - #define TIFF_INSUBIFD 0x02000 /* currently writing a subifd */ - #define TIFF_UPSAMPLED 0x04000 /* library is doing data up-sampling */ - #define TIFF_STRIPCHOP 0x08000 /* enable strip chopping support */ - #define TIFF_HEADERONLY 0x10000 /* read header only, do not process the first directory */ - #define TIFF_NOREADRAW 0x20000 /* skip reading of raw uncompressed image data */ - #define TIFF_INCUSTOMIFD 0x40000 /* currently writing a custom IFD */ - #define TIFF_BIGTIFF 0x80000 /* read/write bigtiff */ - #define TIFF_BUF4WRITE 0x100000 /* rawcc bytes are for writing */ - #define TIFF_DIRTYSTRIP 0x200000 /* stripoffsets/stripbytecount dirty*/ - #define TIFF_PERSAMPLE 0x400000 /* get/set per sample tags as arrays */ - #define TIFF_BUFFERMMAP 0x800000 /* read buffer (tif_rawdata) points into mmap() memory */ - uint64 tif_diroff; /* file offset of current directory */ - uint64 tif_nextdiroff; /* file offset of following directory */ - uint64* tif_dirlist; /* list of offsets to already seen directories to prevent IFD looping */ - uint16 tif_dirlistsize; /* number of entires in offset list */ - uint16 tif_dirnumber; /* number of already seen directories */ - TIFFDirectory tif_dir; /* internal rep of current directory */ - TIFFDirectory tif_customdir; /* custom IFDs are separated from the main ones */ - union { - TIFFHeaderCommon common; - TIFFHeaderClassic classic; - TIFFHeaderBig big; - } tif_header; - uint16 tif_header_size; /* file's header block and its length */ - uint32 tif_row; /* current scanline */ - uint16 tif_curdir; /* current directory (index) */ - uint32 tif_curstrip; /* current strip for read/write */ - uint64 tif_curoff; /* current offset for read/write */ - uint64 tif_dataoff; /* current offset for writing dir */ - /* SubIFD support */ - uint16 tif_nsubifd; /* remaining subifds to write */ - uint64 tif_subifdoff; /* offset for patching SubIFD link */ - /* tiling support */ - uint32 tif_col; /* current column (offset by row too) */ - uint32 tif_curtile; /* current tile for read/write */ - tmsize_t tif_tilesize; /* # of bytes in a tile */ - /* compression scheme hooks */ - int tif_decodestatus; - TIFFBoolMethod tif_fixuptags; /* called in TIFFReadDirectory */ - TIFFBoolMethod tif_setupdecode; /* called once before predecode */ - TIFFPreMethod tif_predecode; /* pre- row/strip/tile decoding */ - TIFFBoolMethod tif_setupencode; /* called once before preencode */ - int tif_encodestatus; - TIFFPreMethod tif_preencode; /* pre- row/strip/tile encoding */ - TIFFBoolMethod tif_postencode; /* post- row/strip/tile encoding */ - TIFFCodeMethod tif_decoderow; /* scanline decoding routine */ - TIFFCodeMethod tif_encoderow; /* scanline encoding routine */ - TIFFCodeMethod tif_decodestrip; /* strip decoding routine */ - TIFFCodeMethod tif_encodestrip; /* strip encoding routine */ - TIFFCodeMethod tif_decodetile; /* tile decoding routine */ - TIFFCodeMethod tif_encodetile; /* tile encoding routine */ - TIFFVoidMethod tif_close; /* cleanup-on-close routine */ - TIFFSeekMethod tif_seek; /* position within a strip routine */ - TIFFVoidMethod tif_cleanup; /* cleanup state routine */ - TIFFStripMethod tif_defstripsize; /* calculate/constrain strip size */ - TIFFTileMethod tif_deftilesize; /* calculate/constrain tile size */ - uint8* tif_data; /* compression scheme private data */ - /* input/output buffering */ - tmsize_t tif_scanlinesize; /* # of bytes in a scanline */ - tmsize_t tif_scanlineskew; /* scanline skew for reading strips */ - uint8* tif_rawdata; /* raw data buffer */ - tmsize_t tif_rawdatasize; /* # of bytes in raw data buffer */ - tmsize_t tif_rawdataoff; /* rawdata offset within strip */ - tmsize_t tif_rawdataloaded;/* amount of data in rawdata */ - uint8* tif_rawcp; /* current spot in raw buffer */ - tmsize_t tif_rawcc; /* bytes unread from raw buffer */ - /* memory-mapped file support */ - uint8* tif_base; /* base of mapped file */ - tmsize_t tif_size; /* size of mapped file region (bytes, thus tmsize_t) */ - TIFFMapFileProc tif_mapproc; /* map file method */ - TIFFUnmapFileProc tif_unmapproc; /* unmap file method */ - /* input/output callback methods */ - thandle_t tif_clientdata; /* callback parameter */ - TIFFReadWriteProc tif_readproc; /* read method */ - TIFFReadWriteProc tif_writeproc; /* write method */ - TIFFSeekProc tif_seekproc; /* lseek method */ - TIFFCloseProc tif_closeproc; /* close method */ - TIFFSizeProc tif_sizeproc; /* filesize method */ - /* post-decoding support */ - TIFFPostMethod tif_postdecode; /* post decoding routine */ - /* tag support */ - TIFFField** tif_fields; /* sorted table of registered tags */ - size_t tif_nfields; /* # entries in registered tag table */ - const TIFFField* tif_foundfield; /* cached pointer to already found tag */ - TIFFTagMethods tif_tagmethods; /* tag get/set/print routines */ - TIFFClientInfoLink* tif_clientinfo; /* extra client information. */ - /* Backward compatibility stuff. We need these two fields for - * setting up an old tag extension scheme. */ - TIFFFieldArray* tif_fieldscompat; - size_t tif_nfieldscompat; -}; - -#define isPseudoTag(t) (t > 0xffff) /* is tag value normal or pseudo */ - -#define isTiled(tif) (((tif)->tif_flags & TIFF_ISTILED) != 0) -#define isMapped(tif) (((tif)->tif_flags & TIFF_MAPPED) != 0) -#define isFillOrder(tif, o) (((tif)->tif_flags & (o)) != 0) -#define isUpSampled(tif) (((tif)->tif_flags & TIFF_UPSAMPLED) != 0) -#define TIFFReadFile(tif, buf, size) \ - ((*(tif)->tif_readproc)((tif)->tif_clientdata,(buf),(size))) -#define TIFFWriteFile(tif, buf, size) \ - ((*(tif)->tif_writeproc)((tif)->tif_clientdata,(buf),(size))) -#define TIFFSeekFile(tif, off, whence) \ - ((*(tif)->tif_seekproc)((tif)->tif_clientdata,(off),(whence))) -#define TIFFCloseFile(tif) \ - ((*(tif)->tif_closeproc)((tif)->tif_clientdata)) -#define TIFFGetFileSize(tif) \ - ((*(tif)->tif_sizeproc)((tif)->tif_clientdata)) -#define TIFFMapFileContents(tif, paddr, psize) \ - ((*(tif)->tif_mapproc)((tif)->tif_clientdata,(paddr),(psize))) -#define TIFFUnmapFileContents(tif, addr, size) \ - ((*(tif)->tif_unmapproc)((tif)->tif_clientdata,(addr),(size))) - -/* - * Default Read/Seek/Write definitions. - */ -#ifndef ReadOK -#define ReadOK(tif, buf, size) \ - (TIFFReadFile((tif),(buf),(size))==(size)) -#endif -#ifndef SeekOK -#define SeekOK(tif, off) \ - (TIFFSeekFile((tif),(off),SEEK_SET)==(off)) -#endif -#ifndef WriteOK -#define WriteOK(tif, buf, size) \ - (TIFFWriteFile((tif),(buf),(size))==(size)) -#endif - -/* NB: the uint32 casts are to silence certain ANSI-C compilers */ -#define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \ - ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \ - 0U) -#define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) -#define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y)) -#define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y))) -#define TIFFhowmany8_64(x) (((x)&0x07)?((uint64)(x)>>3)+1:(uint64)(x)>>3) -#define TIFFroundup_64(x, y) (TIFFhowmany_64(x,y)*(y)) - -/* Safe multiply which returns zero if there is an integer overflow */ -#define TIFFSafeMultiply(t,v,m) ((((t)(m) != (t)0) && (((t)(((v)*(m))/(m))) == (t)(v))) ? (t)((v)*(m)) : (t)0) - -#define TIFFmax(A,B) ((A)>(B)?(A):(B)) -#define TIFFmin(A,B) ((A)<(B)?(A):(B)) - -#define TIFFArrayCount(a) (sizeof (a) / sizeof ((a)[0])) - -#if defined(__cplusplus) -extern "C" { -#endif -extern int _TIFFgetMode(const char* mode, const char* module); -extern int _TIFFNoRowEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); -extern int _TIFFNoStripEncode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); -extern int _TIFFNoTileEncode(TIFF*, uint8* pp, tmsize_t cc, uint16 s); -extern int _TIFFNoRowDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); -extern int _TIFFNoStripDecode(TIFF* tif, uint8* pp, tmsize_t cc, uint16 s); -extern int _TIFFNoTileDecode(TIFF*, uint8* pp, tmsize_t cc, uint16 s); -extern void _TIFFNoPostDecode(TIFF* tif, uint8* buf, tmsize_t cc); -extern int _TIFFNoPreCode(TIFF* tif, uint16 s); -extern int _TIFFNoSeek(TIFF* tif, uint32 off); -extern void _TIFFSwab16BitData(TIFF* tif, uint8* buf, tmsize_t cc); -extern void _TIFFSwab24BitData(TIFF* tif, uint8* buf, tmsize_t cc); -extern void _TIFFSwab32BitData(TIFF* tif, uint8* buf, tmsize_t cc); -extern void _TIFFSwab64BitData(TIFF* tif, uint8* buf, tmsize_t cc); -extern int TIFFFlushData1(TIFF* tif); -extern int TIFFDefaultDirectory(TIFF* tif); -extern void _TIFFSetDefaultCompressionState(TIFF* tif); -extern int _TIFFRewriteField(TIFF *, ttag_t, TIFFDataType, tmsize_t, void *); -extern int TIFFSetCompressionScheme(TIFF* tif, int scheme); -extern int TIFFSetDefaultCompressionState(TIFF* tif); -extern uint32 _TIFFDefaultStripSize(TIFF* tif, uint32 s); -extern void _TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th); -extern int _TIFFDataSize(TIFFDataType type); - -extern void _TIFFsetByteArray(void**, void*, uint32); -extern void _TIFFsetString(char**, char*); -extern void _TIFFsetShortArray(uint16**, uint16*, uint32); -extern void _TIFFsetLongArray(uint32**, uint32*, uint32); -extern void _TIFFsetFloatArray(float**, float*, uint32); -extern void _TIFFsetDoubleArray(double**, double*, uint32); - -extern void _TIFFprintAscii(FILE*, const char*); -extern void _TIFFprintAsciiTag(FILE*, const char*, const char*); - -extern TIFFErrorHandler _TIFFwarningHandler; -extern TIFFErrorHandler _TIFFerrorHandler; -extern TIFFErrorHandlerExt _TIFFwarningHandlerExt; -extern TIFFErrorHandlerExt _TIFFerrorHandlerExt; - -extern uint32 _TIFFMultiply32(TIFF*, uint32, uint32, const char*); -extern uint64 _TIFFMultiply64(TIFF*, uint64, uint64, const char*); -extern void* _TIFFCheckMalloc(TIFF*, tmsize_t, tmsize_t, const char*); -extern void* _TIFFCheckRealloc(TIFF*, void*, tmsize_t, tmsize_t, const char*); - -extern double _TIFFUInt64ToDouble(uint64); -extern float _TIFFUInt64ToFloat(uint64); - -extern int TIFFInitDumpMode(TIFF*, int); -#ifdef PACKBITS_SUPPORT -extern int TIFFInitPackBits(TIFF*, int); -#endif -#ifdef CCITT_SUPPORT -extern int TIFFInitCCITTRLE(TIFF*, int), TIFFInitCCITTRLEW(TIFF*, int); -extern int TIFFInitCCITTFax3(TIFF*, int), TIFFInitCCITTFax4(TIFF*, int); -#endif -#ifdef THUNDER_SUPPORT -extern int TIFFInitThunderScan(TIFF*, int); -#endif -#ifdef NEXT_SUPPORT -extern int TIFFInitNeXT(TIFF*, int); -#endif -#ifdef LZW_SUPPORT -extern int TIFFInitLZW(TIFF*, int); -#endif -#ifdef OJPEG_SUPPORT -extern int TIFFInitOJPEG(TIFF*, int); -#endif -#ifdef JPEG_SUPPORT -extern int TIFFInitJPEG(TIFF*, int); -#endif -#ifdef JBIG_SUPPORT -extern int TIFFInitJBIG(TIFF*, int); -#endif -#ifdef ZIP_SUPPORT -extern int TIFFInitZIP(TIFF*, int); -#endif -#ifdef PIXARLOG_SUPPORT -extern int TIFFInitPixarLog(TIFF*, int); -#endif -#ifdef LOGLUV_SUPPORT -extern int TIFFInitSGILog(TIFF*, int); -#endif -#ifdef LZMA_SUPPORT -extern int TIFFInitLZMA(TIFF*, int); -#endif -#ifdef VMS -extern const TIFFCodec _TIFFBuiltinCODECS[]; -#else -extern TIFFCodec _TIFFBuiltinCODECS[]; -#endif - -#if defined(__cplusplus) -} -#endif -#endif /* _TIFFIOP_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/libtiff/tiffvers.h b/tiff/libtiff/tiffvers.h deleted file mode 100755 index 74f769c..0000000 --- a/tiff/libtiff/tiffvers.h +++ /dev/null @@ -1,9 +0,0 @@ -#define TIFFLIB_VERSION_STR "LIBTIFF, Version 4.0.4beta\nCopyright (c) 1988-1996 Sam Leffler\nCopyright (c) 1991-1996 Silicon Graphics, Inc." -/* - * This define can be used in code that requires - * compilation-related definitions specific to a - * version or versions of the library. Runtime - * version checking should be done based on the - * string returned by TIFFGetVersion. - */ -#define TIFFLIB_VERSION 20150126 diff --git a/tiff/libtiff/uvcode.h b/tiff/libtiff/uvcode.h deleted file mode 100755 index 50f11d7..0000000 --- a/tiff/libtiff/uvcode.h +++ /dev/null @@ -1,180 +0,0 @@ -/* Version 1.0 generated April 7, 1997 by Greg Ward Larson, SGI */ -#define UV_SQSIZ (float)0.003500 -#define UV_NDIVS 16289 -#define UV_VSTART (float)0.016940 -#define UV_NVS 163 -static struct { - float ustart; - short nus, ncum; -} uv_row[UV_NVS] = { - { (float)0.247663, 4, 0 }, - { (float)0.243779, 6, 4 }, - { (float)0.241684, 7, 10 }, - { (float)0.237874, 9, 17 }, - { (float)0.235906, 10, 26 }, - { (float)0.232153, 12, 36 }, - { (float)0.228352, 14, 48 }, - { (float)0.226259, 15, 62 }, - { (float)0.222371, 17, 77 }, - { (float)0.220410, 18, 94 }, - { (float)0.214710, 21, 112 }, - { (float)0.212714, 22, 133 }, - { (float)0.210721, 23, 155 }, - { (float)0.204976, 26, 178 }, - { (float)0.202986, 27, 204 }, - { (float)0.199245, 29, 231 }, - { (float)0.195525, 31, 260 }, - { (float)0.193560, 32, 291 }, - { (float)0.189878, 34, 323 }, - { (float)0.186216, 36, 357 }, - { (float)0.186216, 36, 393 }, - { (float)0.182592, 38, 429 }, - { (float)0.179003, 40, 467 }, - { (float)0.175466, 42, 507 }, - { (float)0.172001, 44, 549 }, - { (float)0.172001, 44, 593 }, - { (float)0.168612, 46, 637 }, - { (float)0.168612, 46, 683 }, - { (float)0.163575, 49, 729 }, - { (float)0.158642, 52, 778 }, - { (float)0.158642, 52, 830 }, - { (float)0.158642, 52, 882 }, - { (float)0.153815, 55, 934 }, - { (float)0.153815, 55, 989 }, - { (float)0.149097, 58, 1044 }, - { (float)0.149097, 58, 1102 }, - { (float)0.142746, 62, 1160 }, - { (float)0.142746, 62, 1222 }, - { (float)0.142746, 62, 1284 }, - { (float)0.138270, 65, 1346 }, - { (float)0.138270, 65, 1411 }, - { (float)0.138270, 65, 1476 }, - { (float)0.132166, 69, 1541 }, - { (float)0.132166, 69, 1610 }, - { (float)0.126204, 73, 1679 }, - { (float)0.126204, 73, 1752 }, - { (float)0.126204, 73, 1825 }, - { (float)0.120381, 77, 1898 }, - { (float)0.120381, 77, 1975 }, - { (float)0.120381, 77, 2052 }, - { (float)0.120381, 77, 2129 }, - { (float)0.112962, 82, 2206 }, - { (float)0.112962, 82, 2288 }, - { (float)0.112962, 82, 2370 }, - { (float)0.107450, 86, 2452 }, - { (float)0.107450, 86, 2538 }, - { (float)0.107450, 86, 2624 }, - { (float)0.107450, 86, 2710 }, - { (float)0.100343, 91, 2796 }, - { (float)0.100343, 91, 2887 }, - { (float)0.100343, 91, 2978 }, - { (float)0.095126, 95, 3069 }, - { (float)0.095126, 95, 3164 }, - { (float)0.095126, 95, 3259 }, - { (float)0.095126, 95, 3354 }, - { (float)0.088276, 100, 3449 }, - { (float)0.088276, 100, 3549 }, - { (float)0.088276, 100, 3649 }, - { (float)0.088276, 100, 3749 }, - { (float)0.081523, 105, 3849 }, - { (float)0.081523, 105, 3954 }, - { (float)0.081523, 105, 4059 }, - { (float)0.081523, 105, 4164 }, - { (float)0.074861, 110, 4269 }, - { (float)0.074861, 110, 4379 }, - { (float)0.074861, 110, 4489 }, - { (float)0.074861, 110, 4599 }, - { (float)0.068290, 115, 4709 }, - { (float)0.068290, 115, 4824 }, - { (float)0.068290, 115, 4939 }, - { (float)0.068290, 115, 5054 }, - { (float)0.063573, 119, 5169 }, - { (float)0.063573, 119, 5288 }, - { (float)0.063573, 119, 5407 }, - { (float)0.063573, 119, 5526 }, - { (float)0.057219, 124, 5645 }, - { (float)0.057219, 124, 5769 }, - { (float)0.057219, 124, 5893 }, - { (float)0.057219, 124, 6017 }, - { (float)0.050985, 129, 6141 }, - { (float)0.050985, 129, 6270 }, - { (float)0.050985, 129, 6399 }, - { (float)0.050985, 129, 6528 }, - { (float)0.050985, 129, 6657 }, - { (float)0.044859, 134, 6786 }, - { (float)0.044859, 134, 6920 }, - { (float)0.044859, 134, 7054 }, - { (float)0.044859, 134, 7188 }, - { (float)0.040571, 138, 7322 }, - { (float)0.040571, 138, 7460 }, - { (float)0.040571, 138, 7598 }, - { (float)0.040571, 138, 7736 }, - { (float)0.036339, 142, 7874 }, - { (float)0.036339, 142, 8016 }, - { (float)0.036339, 142, 8158 }, - { (float)0.036339, 142, 8300 }, - 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* c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/m4/acinclude.m4 b/tiff/m4/acinclude.m4 deleted file mode 100755 index b54feb7..0000000 --- a/tiff/m4/acinclude.m4 +++ /dev/null @@ -1,851 +0,0 @@ -dnl --------------------------------------------------------------------------- -dnl Message output -dnl --------------------------------------------------------------------------- -AC_DEFUN([LOC_MSG],[echo "$1"]) - -dnl --------------------------------------------------------------------------- -dnl Available from the GNU Autoconf Macro Archive at: -dnl http://www.gnu.org/software/ac-archive/vl_prog_cc_warnings.html -dnl --------------------------------------------------------------------------- - -dnl @synopsis VL_PROG_CC_WARNINGS([ANSI]) -dnl -dnl Enables a reasonable set of warnings for the C compiler. -dnl Optionally, if the first argument is nonempty, turns on flags which -dnl enforce and/or enable proper ANSI C if such are known with the -dnl compiler used. -dnl -dnl Currently this macro knows about GCC, Solaris C compiler, Digital -dnl Unix C compiler, C for AIX Compiler, HP-UX C compiler, IRIX C -dnl compiler, NEC SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos -dnl 10.0.0.8) C compiler. -dnl -dnl @category C -dnl @author Ville Laurikari -dnl @version 2002-04-04 -dnl @license AllPermissive - 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-AC_DEFUN([AX_LANG_COMPILER_MS], -[AC_CACHE_CHECK([whether we are using the Microsoft _AC_LANG compiler], - [ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms], -[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[#ifndef _MSC_VER - choke me -#endif -]])], - [ax_compiler_ms=yes], - [ax_compiler_ms=no]) -ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms=$ax_compiler_ms -])]) - -dnl --------------------------------------------------------------------------- -dnl Available from the GNU Autoconf Macro Archive at: -dnl http://www.gnu.org/software/ac-archive/ax_check_gl.html -dnl --------------------------------------------------------------------------- - -dnl SYNOPSIS -dnl -dnl AX_CHECK_GL -dnl -dnl DESCRIPTION -dnl -dnl Check for an OpenGL implementation. 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If GLUT is found, the required compiler and linker flags -dnl are included in the output variables "GLUT_CFLAGS" and "GLUT_LIBS", -dnl respectively. If GLUT is not found, "no_glut" is set to "yes". -dnl -dnl If the header "GL/glut.h" is found, "HAVE_GL_GLUT_H" is defined. If the -dnl header "GLUT/glut.h" is found, HAVE_GLUT_GLUT_H is defined. These -dnl preprocessor definitions may not be mutually exclusive. -dnl -dnl LICENSE -dnl -dnl Copyright (c) 2009 Braden McDaniel -dnl -dnl This program is free software; you can redistribute it and/or modify it -dnl under the terms of the GNU General Public License as published by the -dnl Free Software Foundation; either version 2 of the License, or (at your -dnl option) any later version. -dnl -dnl This program is distributed in the hope that it will be useful, but -dnl WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -dnl Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License along -dnl with this program. If not, see . -dnl -dnl As a special exception, the respective Autoconf Macro's copyright owner -dnl gives unlimited permission to copy, distribute and modify the configure -dnl scripts that are the output of Autoconf when processing the Macro. You -dnl need not follow the terms of the GNU General Public License when using -dnl or distributing such scripts, even though portions of the text of the -dnl Macro appear in them. The GNU General Public License (GPL) does govern -dnl all other use of the material that constitutes the Autoconf Macro. -dnl -dnl This special exception to the GPL applies to versions of the Autoconf -dnl Macro released by the Autoconf Archive. When you make and distribute a -dnl modified version of the Autoconf Macro, you may extend this special -dnl exception to the GPL to apply to your modified version as well. - -AC_DEFUN([AX_CHECK_GLUT], -[AC_REQUIRE([AX_CHECK_GLU])dnl -AC_REQUIRE([AC_PATH_XTRA])dnl - -ax_save_CPPFLAGS="${CPPFLAGS}" -CPPFLAGS="${GLU_CFLAGS} ${CPPFLAGS}" -AC_CHECK_HEADERS([GL/glut.h GLUT/glut.h]) -CPPFLAGS="${ax_save_CPPFLAGS}" - -GLUT_CFLAGS=${GLU_CFLAGS} -GLUT_LIBS=${GLU_LIBS} - -m4_define([AX_CHECK_GLUT_PROGRAM], - [AC_LANG_PROGRAM([[ -# if HAVE_WINDOWS_H && defined(_WIN32) -# include -# endif -# ifdef HAVE_GL_GLUT_H -# include -# elif defined(HAVE_GLUT_GLUT_H) -# include -# else -# error no glut.h -# endif]], - [[glutMainLoop()]])]) - -dnl -dnl If X is present, assume GLUT depends on it. -dnl -AS_IF([test X$no_x != Xyes], - [GLUT_LIBS="${X_PRE_LIBS} -lXi ${X_EXTRA_LIBS} ${GLUT_LIBS}"]) - -AC_CACHE_CHECK([for GLUT library], [ax_cv_check_glut_libglut], -[ax_cv_check_glut_libglut="no" -AC_LANG_PUSH(C) -ax_save_CPPFLAGS="${CPPFLAGS}" -CPPFLAGS="${GLUT_CFLAGS} ${CPPFLAGS}" -ax_save_LIBS="${LIBS}" -LIBS="" -ax_check_libs="-lglut32 -lglut" -for ax_lib in ${ax_check_libs}; do - AS_IF([test X$ax_compiler_ms = Xyes], - [ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`], - [ax_try_lib="${ax_lib}"]) - LIBS="${ax_try_lib} ${GLUT_LIBS} ${ax_save_LIBS}" - AC_LINK_IFELSE([AX_CHECK_GLUT_PROGRAM], - [ax_cv_check_glut_libglut="${ax_try_lib}"; break]) -done - -AS_IF([test "X$ax_cv_check_glut_libglut" = Xno -a "X$no_x" = Xyes], -[LIBS='-framework GLUT' -AC_LINK_IFELSE([AX_CHECK_GLUT_PROGRAM], - [ax_cv_check_glut_libglut="$LIBS"])]) - -CPPFLAGS="${ax_save_CPPFLAGS}" -LIBS="${ax_save_LIBS}" -AC_LANG_POP(C)]) - -AS_IF([test "X$ax_cv_check_glut_libglut" = Xno], - [no_glut="yes"; GLUT_CFLAGS=""; GLUT_LIBS=""], - [GLUT_LIBS="${ax_cv_check_glut_libglut} ${GLUT_LIBS}"]) - -AC_SUBST([GLUT_CFLAGS]) -AC_SUBST([GLUT_LIBS]) -])dnl - -dnl --------------------------------------------------------------------------- -dnl Available from the GNU Autoconf Macro Archive at: -dnl http://www.gnu.org/software/autoconf-archive/ax_pthread.html -dnl --------------------------------------------------------------------------- - -dnl SYNOPSIS -dnl -dnl AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) -dnl -dnl DESCRIPTION -dnl -dnl This macro figures out how to build C programs using POSIX threads. It -dnl sets the PTHREAD_LIBS output variable to the threads library and linker -dnl flags, and the PTHREAD_CFLAGS output variable to any special C compiler -dnl flags that are needed. (The user can also force certain compiler -dnl flags/libs to be tested by setting these environment variables.) -dnl -dnl Also sets PTHREAD_CC to any special C compiler that is needed for -dnl multi-threaded programs (defaults to the value of CC otherwise). (This -dnl is necessary on AIX to use the special cc_r compiler alias.) -dnl -dnl NOTE: You are assumed to not only compile your program with these flags, -dnl but also link it with them as well. e.g. you should link with -dnl $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS -dnl -dnl If you are only building threads programs, you may wish to use these -dnl variables in your default LIBS, CFLAGS, and CC: -dnl -dnl LIBS="$PTHREAD_LIBS $LIBS" -dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS" -dnl CC="$PTHREAD_CC" -dnl -dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant -dnl has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name -dnl (e.g. PTHREAD_CREATE_UNDETACHED on AIX). -dnl -dnl ACTION-IF-FOUND is a list of shell commands to run if a threads library -dnl is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it -dnl is not found. If ACTION-IF-FOUND is not specified, the default action -dnl will define HAVE_PTHREAD. -dnl -dnl Please let the authors know if this macro fails on any platform, or if -dnl you have any other suggestions or comments. This macro was based on work -dnl by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help -dnl from M. Frigo), as well as ac_pthread and hb_pthread macros posted by -dnl Alejandro Forero Cuervo to the autoconf macro repository. We are also -dnl grateful for the helpful feedback of numerous users. -dnl -dnl LICENSE -dnl -dnl Copyright (c) 2008 Steven G. Johnson -dnl -dnl This program is free software: you can redistribute it and/or modify it -dnl under the terms of the GNU General Public License as published by the -dnl Free Software Foundation, either version 3 of the License, or (at your -dnl option) any later version. -dnl -dnl This program is distributed in the hope that it will be useful, but -dnl WITHOUT ANY WARRANTY; without even the implied warranty of -dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -dnl Public License for more details. -dnl -dnl You should have received a copy of the GNU General Public License along -dnl with this program. If not, see . -dnl -dnl As a special exception, the respective Autoconf Macro's copyright owner -dnl gives unlimited permission to copy, distribute and modify the configure -dnl scripts that are the output of Autoconf when processing the Macro. You -dnl need not follow the terms of the GNU General Public License when using -dnl or distributing such scripts, even though portions of the text of the -dnl Macro appear in them. The GNU General Public License (GPL) does govern -dnl all other use of the material that constitutes the Autoconf Macro. -dnl -dnl This special exception to the GPL applies to versions of the Autoconf -dnl Macro released by the Autoconf Archive. When you make and distribute a -dnl modified version of the Autoconf Macro, you may extend this special -dnl exception to the GPL to apply to your modified version as well. - -AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) -AC_DEFUN([AX_PTHREAD], [ -AC_REQUIRE([AC_CANONICAL_HOST]) -AC_LANG_SAVE -AC_LANG_C -ax_pthread_ok=no - -dnl We used to check for pthread.h first, but this fails if pthread.h -dnl requires special compiler flags (e.g. on True64 or Sequent). -dnl It gets checked for in the link test anyway. - -dnl First of all, check if the user has set any of the PTHREAD_LIBS, -dnl etcetera environment variables, and if threads linking works using -dnl them: -if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then - save_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - save_LIBS="$LIBS" - LIBS="$PTHREAD_LIBS $LIBS" - AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) - AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes) - AC_MSG_RESULT($ax_pthread_ok) - if test x"$ax_pthread_ok" = xno; then - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" - fi - LIBS="$save_LIBS" - CFLAGS="$save_CFLAGS" -fi - -dnl We must check for the threads library under a number of different -dnl names; the ordering is very important because some systems -dnl (e.g. DEC) have both -lpthread and -lpthreads, where one of the -dnl libraries is broken (non-POSIX). - -dnl Create a list of thread flags to try. Items starting with a "-" are -dnl C compiler flags, and other items are library names, except for "none" -dnl which indicates that we try without any flags at all, and "pthread-config" -dnl which is a program returning the flags for the Pth emulation library. - -ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" - -dnl The ordering *is* (sometimes) important. Some notes on the -dnl individual items follow: - -dnl pthreads: AIX (must check this before -lpthread) -dnl none: in case threads are in libc; should be tried before -Kthread and -dnl other compiler flags to prevent continual compiler warnings -dnl -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) -dnl -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) -dnl lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) -dnl -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) -dnl -pthreads: Solaris/gcc -dnl -mthreads: Mingw32/gcc, Lynx/gcc -dnl -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it -dnl doesn't hurt to check since this sometimes defines pthreads too; -dnl also defines -D_REENTRANT) -dnl ... -mt is also the pthreads flag for HP/aCC -dnl pthread: Linux, etcetera -dnl --thread-safe: KAI C++ -dnl pthread-config: use pthread-config program (for GNU Pth library) - -case "${host_cpu}-${host_os}" in - *solaris*) - - dnl On Solaris (at least, for some versions), libc contains stubbed - dnl (non-functional) versions of the pthreads routines, so link-based - dnl tests will erroneously succeed. (We need to link with -pthreads/-mt/ - dnl -lpthread.) (The stubs are missing pthread_cleanup_push, or rather - dnl a function called by this macro, so we could check for that, but - dnl who knows whether they'll stub that too in a future libc.) So, - dnl we'll just look for -pthreads and -lpthread first: - - ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags" - ;; - - *-darwin*) - ax_pthread_flags="-pthread $ax_pthread_flags" - ;; -esac - -if test x"$ax_pthread_ok" = xno; then -for flag in $ax_pthread_flags; do - - case $flag in - none) - AC_MSG_CHECKING([whether pthreads work without any flags]) - ;; - - -*) - AC_MSG_CHECKING([whether pthreads work with $flag]) - PTHREAD_CFLAGS="$flag" - ;; - - pthread-config) - AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no) - if test x"$ax_pthread_config" = xno; then continue; fi - PTHREAD_CFLAGS="`pthread-config --cflags`" - PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" - ;; - - *) - AC_MSG_CHECKING([for the pthreads library -l$flag]) - PTHREAD_LIBS="-l$flag" - ;; - esac - - save_LIBS="$LIBS" - save_CFLAGS="$CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - - dnl Check for various functions. We must include pthread.h, - dnl since some functions may be macros. (On the Sequent, we - dnl need a special flag -Kthread to make this header compile.) - dnl We check for pthread_join because it is in -lpthread on IRIX - dnl while pthread_create is in libc. We check for pthread_attr_init - dnl due to DEC craziness with -lpthreads. We check for - dnl pthread_cleanup_push because it is one of the few pthread - dnl functions on Solaris that doesn't have a non-functional libc stub. - dnl We try pthread_create on general principles. - AC_TRY_LINK([#include - static void routine(void* a) {a=0;} - static void* start_routine(void* a) {return a;}], - [pthread_t th; pthread_attr_t attr; - pthread_create(&th,0,start_routine,0); - pthread_join(th, 0); - pthread_attr_init(&attr); - pthread_cleanup_push(routine, 0); - pthread_cleanup_pop(0); ], - [ax_pthread_ok=yes]) - - LIBS="$save_LIBS" - CFLAGS="$save_CFLAGS" - - AC_MSG_RESULT($ax_pthread_ok) - if test "x$ax_pthread_ok" = xyes; then - break; - fi - - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" -done -fi - -dnl Various other checks: -if test "x$ax_pthread_ok" = xyes; then - save_LIBS="$LIBS" - LIBS="$PTHREAD_LIBS $LIBS" - save_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - - dnl Detect AIX lossage: JOINABLE attribute is called UNDETACHED. - AC_MSG_CHECKING([for joinable pthread attribute]) - attr_name=unknown - for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do - AC_TRY_LINK([#include ], [int attr=$attr; return attr;], - [attr_name=$attr; break]) - done - AC_MSG_RESULT($attr_name) - if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then - AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, - [Define to necessary symbol if this constant - uses a non-standard name on your system.]) - fi - - AC_MSG_CHECKING([if more special flags are required for pthreads]) - flag=no - case "${host_cpu}-${host_os}" in - *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; - *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; - esac - AC_MSG_RESULT(${flag}) - if test "x$flag" != xno; then - PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" - fi - - LIBS="$save_LIBS" - CFLAGS="$save_CFLAGS" - - dnl More AIX lossage: must compile with xlc_r or cc_r - if test x"$GCC" != xyes; then - AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC}) - else - PTHREAD_CC=$CC - fi -else - PTHREAD_CC="$CC" -fi - -AC_SUBST(PTHREAD_LIBS) -AC_SUBST(PTHREAD_CFLAGS) -AC_SUBST(PTHREAD_CC) - -dnl Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: -if test x"$ax_pthread_ok" = xyes; then - ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) - : -else - ax_pthread_ok=no - $2 -fi -AC_LANG_RESTORE -])dnl AX_PTHREAD diff --git a/tiff/m4/libtool.m4 b/tiff/m4/libtool.m4 deleted file mode 100755 index f796d7b..0000000 --- a/tiff/m4/libtool.m4 +++ /dev/null @@ -1,8364 +0,0 @@ -# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- -# -# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. -# Written by Gordon Matzigkeit, 1996 -# -# This file is free software; the Free Software Foundation gives -# unlimited permission to copy and/or distribute it, with or without -# modifications, as long as this notice is preserved. - -m4_define([_LT_COPYING], [dnl -# Copyright (C) 2014 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. 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\$ 0~/\(\).*\|/{f=\"T\"};"\ -" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ -" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ -" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ -" ' prfx=^$ac_symprfx]" - else - lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" - fi - lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" - - # Check to see that the pipe works correctly. - pipe_works=no - - rm -f conftest* - cat > conftest.$ac_ext <<_LT_EOF -#ifdef __cplusplus -extern "C" { -#endif -char nm_test_var; -void nm_test_func(void); -void nm_test_func(void){} -#ifdef __cplusplus -} -#endif -int main(){nm_test_var='a';nm_test_func();return(0);} -_LT_EOF - - if AC_TRY_EVAL(ac_compile); then - # Now try to grab the symbols. - nlist=conftest.nm - if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then - # Try sorting and uniquifying the output. - if sort "$nlist" | uniq > "$nlist"T; then - mv -f "$nlist"T "$nlist" - else - rm -f "$nlist"T - fi - - # Make sure that we snagged all the symbols we need. - if $GREP ' nm_test_var$' "$nlist" >/dev/null; then - if $GREP ' nm_test_func$' "$nlist" >/dev/null; then - cat <<_LT_EOF > conftest.$ac_ext -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE -/* DATA imports from DLLs on WIN32 can't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT@&t@_DLSYM_CONST -#elif defined __osf__ -/* This system does not cope well with relocations in const data. */ -# define LT@&t@_DLSYM_CONST -#else -# define LT@&t@_DLSYM_CONST const -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -_LT_EOF - # Now generate the symbol file. - eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' - - cat <<_LT_EOF >> conftest.$ac_ext - -/* The mapping between symbol names and symbols. */ -LT@&t@_DLSYM_CONST struct { - const char *name; - void *address; -} -lt__PROGRAM__LTX_preloaded_symbols[[]] = -{ - { "@PROGRAM@", (void *) 0 }, -_LT_EOF - $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext - cat <<\_LT_EOF >> conftest.$ac_ext - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt__PROGRAM__LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif -_LT_EOF - # Now try linking the two files. - mv conftest.$ac_objext conftstm.$ac_objext - lt_globsym_save_LIBS=$LIBS - lt_globsym_save_CFLAGS=$CFLAGS - LIBS=conftstm.$ac_objext - CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" - if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then - pipe_works=yes - fi - LIBS=$lt_globsym_save_LIBS - CFLAGS=$lt_globsym_save_CFLAGS - else - echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD - fi - else - echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD - fi - else - echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD - fi - else - echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD - cat conftest.$ac_ext >&5 - fi - rm -rf conftest* conftst* - - # Do not use the global_symbol_pipe unless it works. - if test yes = "$pipe_works"; then - break - else - lt_cv_sys_global_symbol_pipe= - fi -done -]) -if test -z "$lt_cv_sys_global_symbol_pipe"; then - lt_cv_sys_global_symbol_to_cdecl= -fi -if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then - AC_MSG_RESULT(failed) -else - AC_MSG_RESULT(ok) -fi - -# Response file support. -if test "$lt_cv_nm_interface" = "MS dumpbin"; then - nm_file_list_spec='@' -elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then - nm_file_list_spec='@' -fi - -_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], - [Take the output of nm and produce a listing of raw symbols and C names]) -_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], - [Transform the output of nm in a proper C declaration]) -_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], - [Transform the output of nm into a list of symbols to manually relocate]) -_LT_DECL([global_symbol_to_c_name_address], - [lt_cv_sys_global_symbol_to_c_name_address], [1], - [Transform the output of nm in a C name address pair]) -_LT_DECL([global_symbol_to_c_name_address_lib_prefix], - [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], - [Transform the output of nm in a C name address pair when lib prefix is needed]) -_LT_DECL([nm_interface], [lt_cv_nm_interface], [1], - [The name lister interface]) -_LT_DECL([], [nm_file_list_spec], [1], - [Specify filename containing input files for $NM]) -]) # _LT_CMD_GLOBAL_SYMBOLS - - -# _LT_COMPILER_PIC([TAGNAME]) -# --------------------------- -m4_defun([_LT_COMPILER_PIC], -[m4_require([_LT_TAG_COMPILER])dnl -_LT_TAGVAR(lt_prog_compiler_wl, $1)= -_LT_TAGVAR(lt_prog_compiler_pic, $1)= -_LT_TAGVAR(lt_prog_compiler_static, $1)= - -m4_if([$1], [CXX], [ - # C++ specific cases for pic, static, wl, etc. - if test yes = "$GXX"; then - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - - case $host_os in - aix*) - # All AIX code is PIC. - if test ia64 = "$host_cpu"; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - fi - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - - amigaos*) - case $host_cpu in - powerpc) - # see comment about AmigaOS4 .so support - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - m68k) - # FIXME: we need at least 68020 code to build shared libraries, but - # adding the '-m68020' flag to GCC prevents building anything better, - # like '-m68040'. - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' - ;; - esac - ;; - - beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) - # PIC is the default for these OSes. - ;; - mingw* | cygwin* | os2* | pw32* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - # Although the cygwin gcc ignores -fPIC, still need this for old-style - # (--disable-auto-import) libraries - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - case $host_os in - os2*) - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' - ;; - esac - ;; - darwin* | rhapsody*) - # PIC is the default on this platform - # Common symbols not allowed in MH_DYLIB files - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' - ;; - *djgpp*) - # DJGPP does not support shared libraries at all - _LT_TAGVAR(lt_prog_compiler_pic, $1)= - ;; - haiku*) - # PIC is the default for Haiku. - # The "-static" flag exists, but is broken. - _LT_TAGVAR(lt_prog_compiler_static, $1)= - ;; - interix[[3-9]]*) - # Interix 3.x gcc -fpic/-fPIC options generate broken code. - # Instead, we relocate shared libraries at runtime. - ;; - sysv4*MP*) - if test -d /usr/nec; then - _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic - fi - ;; - hpux*) - # PIC is the default for 64-bit PA HP-UX, but not for 32-bit - # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag - # sets the default TLS model and affects inlining. - case $host_cpu in - hppa*64*) - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - esac - ;; - *qnx* | *nto*) - # QNX uses GNU C++, but need to define -shared option too, otherwise - # it will coredump. - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - esac - else - case $host_os in - aix[[4-9]]*) - # All AIX code is PIC. - if test ia64 = "$host_cpu"; then - # AIX 5 now supports IA64 processor - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - else - _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' - fi - ;; - chorus*) - case $cc_basename in - cxch68*) - # Green Hills C++ Compiler - # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" - ;; - esac - ;; - mingw* | cygwin* | os2* | pw32* | cegcc*) - # This hack is so that the source file can tell whether it is being - # built for inclusion in a dll (and should export symbols for example). - m4_if([$1], [GCJ], [], - [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) - ;; - dgux*) - case $cc_basename in - ec++*) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' - ;; - ghcx*) - # Green Hills C++ Compiler - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' - ;; - *) - ;; - esac - ;; - freebsd* | dragonfly*) - # FreeBSD uses GNU C++ - ;; - hpux9* | hpux10* | hpux11*) - case $cc_basename in - CC*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' - if test ia64 != "$host_cpu"; then - _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' - fi - ;; - aCC*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' - case $host_cpu in - hppa*64*|ia64*) - # +Z the default - ;; - *) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' - ;; - esac - ;; - *) - ;; - esac - ;; - interix*) - # This is c89, which is MS Visual C++ (no shared libs) - # Anyone wants to do a port? - ;; - irix5* | irix6* | nonstopux*) - case $cc_basename in - CC*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' - # CC pic flag -KPIC is the default. - ;; - *) - ;; - esac - ;; - linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) - case $cc_basename in - KCC*) - # KAI C++ Compiler - _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - ;; - ecpc* ) - # old Intel C++ for x86_64, which still supported -KPIC. - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - ;; - icpc* ) - # Intel C++, used to be incompatible with GCC. - # ICC 10 doesn't accept -KPIC any more. - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' - ;; - pgCC* | pgcpp*) - # Portland Group C++ compiler - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - ;; - cxx*) - # Compaq C++ - # Make sure the PIC flag is empty. It appears that all Alpha - # Linux and Compaq Tru64 Unix objects are PIC. - _LT_TAGVAR(lt_prog_compiler_pic, $1)= - _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' - ;; - xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) - # IBM XL 8.0, 9.0 on PPC and BlueGene - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' - ;; - *) - case `$CC -V 2>&1 | sed 5q` in - *Sun\ C*) - # Sun C++ 5.9 - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' - _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' - ;; - esac - ;; - esac - ;; - lynxos*) - ;; - m88k*) - ;; - mvs*) - case $cc_basename in - cxx*) - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' - ;; - *) - ;; - esac - ;; - netbsd*) - ;; - *qnx* | *nto*) - # QNX uses GNU C++, but need to define -shared option too, otherwise - # it will coredump. - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' - ;; - osf3* | osf4* | osf5*) - case $cc_basename in - KCC*) - _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' - ;; - RCC*) - # Rational C++ 2.4.1 - _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' - ;; - cxx*) - # Digital/Compaq C++ - _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' - # Make sure the PIC flag is empty. 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least) may be exceeded. -.NOEXPORT: diff --git a/tiff/man/TIFFClose.3tiff b/tiff/man/TIFFClose.3tiff deleted file mode 100755 index bcb7604..0000000 --- a/tiff/man/TIFFClose.3tiff +++ /dev/null @@ -1,53 +0,0 @@ -.\" $Id: TIFFClose.3tiff,v 1.3 2009-08-24 19:13:40 bfriesen Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFClose 3TIFF "November 2, 2005" "libtiff" -.SH NAME -TIFFClose \- close a previously opened -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "void TIFFClose(TIFF *" tif ")" -.SH DESCRIPTION -.IR TIFFClose -closes a file that was previously opened with -.BR TIFFOpen (3TIFF). -Any buffered data are flushed to the file, including the contents of the -current directory (if modified); and all resources are reclaimed. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -Likewise, warning messages are directed to the -.BR TIFFWarning (3TIFF) -routine. -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.BR TIFFOpen (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFDataWidth.3tiff b/tiff/man/TIFFDataWidth.3tiff deleted file mode 100755 index cb274d8..0000000 --- a/tiff/man/TIFFDataWidth.3tiff +++ /dev/null @@ -1,74 +0,0 @@ -.\" $Id: TIFFDataWidth.3tiff,v 1.3 2006-03-23 14:54:02 dron Exp $ -.\" -.\" Copyright (c) 2002, Andrey Kiselev -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFDataWidth 3TIFF "September 12, 2002" "libtiff" -.SH NAME -TIFFDataWidth \- Get the size of TIFF data types -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFDataWidth(TIFFDataType " type ")" -.SH DESCRIPTION -.I TIFFDataWidth -returns a size of -.I type -in bytes. -Currently following data types are supported: -.br -.I TIFF_BYTE -.br -.I TIFF_ASCII -.br -.I TIFF_SBYTE -.br -.I TIFF_UNDEFINED -.br -.I TIFF_SHORT -.br -.I TIFF_SSHORT -.br -.I TIFF_LONG -.br -.I TIFF_SLONG -.br -.I TIFF_FLOAT -.br -.I TIFF_IFD -.br -.I TIFF_RATIONAL -.br -.I TIFF_SRATIONAL -.br -.I TIFF_DOUBLE -.br -.SH "RETURN VALUES" -.br -.IR TIFFDataWidth -returns a number of bytes occupied by the item of given type. 0 returned when -uknown data type supplied. -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFError.3tiff b/tiff/man/TIFFError.3tiff deleted file mode 100755 index 761ff08..0000000 --- a/tiff/man/TIFFError.3tiff +++ /dev/null @@ -1,69 +0,0 @@ -.\" $Id: TIFFError.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFError 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFError, TIFFSetErrorHandler \- library error handling interface -.SH SYNOPSIS -.B "#include " -.sp -.BI "void TIFFError(const char *" module ", const char *" fmt ", " ... ")" -.sp -.B "#include " -.sp -.BI "typedef void (*TIFFErrorHandler)(const char *" module ", const char *" fmt ", va_list " ap ");" -.br -.B "TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler handler);" -.SH DESCRIPTION -.I TIFFError -invokes the library-wide error handling function to (normally) write an error -message to the -.BR stderr . -The -.I fmt -parameter is a -.IR printf (3S) -format string, and any number arguments can be supplied. The -.I module -parameter, if non-zero, is printed before the message; it typically is used to -identify the software module in which an error is detected. -.PP -Applications that desire to capture control in the event of an error should -use -.IR TIFFSetErrorHandler -to override the default error handler. -A -.SM NULL -(0) error handling function may be installed to suppress error messages. -.SH "RETURN VALUES" -.IR TIFFSetErrorHandler -returns a reference to the previous error handling function. -.SH "SEE ALSO" -.BR TIFFWarning (3TIFF), -.BR libtiff (3TIFF), -.BR printf (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldDataType.3tiff b/tiff/man/TIFFFieldDataType.3tiff deleted file mode 100755 index 3efe697..0000000 --- a/tiff/man/TIFFFieldDataType.3tiff +++ /dev/null @@ -1,53 +0,0 @@ -.\" $Id: TIFFFieldDataType.3tiff,v 1.1 2012-07-29 15:45:29 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldDataType 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldDataType \- Get TIFF data type from field information -.SH SYNOPSIS -.B "#include " -.sp -.BI "TIFFDataType TIFFFieldDataType(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldDataType -returns the data type stored in a TIFF field. -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldDataType -returns a member of the enum type -.BR TIFFDataType . -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldName.3tiff b/tiff/man/TIFFFieldName.3tiff deleted file mode 100755 index 2755d18..0000000 --- a/tiff/man/TIFFFieldName.3tiff +++ /dev/null @@ -1,52 +0,0 @@ -.\" $Id: TIFFFieldName.3tiff,v 1.1 2012-07-29 15:45:29 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldName 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldName \- Get TIFF field name from field information -.SH SYNOPSIS -.B "#include " -.sp -.BI "const char* TIFFFieldName(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldName -returns the textual name for a TIFF field. -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldName -returns a constant C string. -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldPassCount.3tiff b/tiff/man/TIFFFieldPassCount.3tiff deleted file mode 100755 index 8f3c5d0..0000000 --- a/tiff/man/TIFFFieldPassCount.3tiff +++ /dev/null @@ -1,73 +0,0 @@ -.\" $Id: TIFFFieldPassCount.3tiff,v 1.1 2012-07-29 15:45:29 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldPassCount 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldPassCount \- Get whether to pass a count to TIFFGet/SetField -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFFieldPassCount(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldPassCount -returns true (nonzero) if -.BR TIFFGetField -and -.BR TIFFSetField -expect a -.I count -value to be passed before the actual data pointer. -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.P -When a -.I count -is required, it will be of type -.BR uint32 -when -.BR TIFFFieldReadCount -reports -.BR TIFF_VARIABLE2 , -and of type -.BR uint16 -otherwise. (This distinction is critical for use of -.BR TIFFGetField , -but normally not so for use of -.BR TIFFSetField .) -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldPassCount -returns an integer that is always 1 (true) or 0 (false). -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldReadCount.3tiff b/tiff/man/TIFFFieldReadCount.3tiff deleted file mode 100755 index cdb5858..0000000 --- a/tiff/man/TIFFFieldReadCount.3tiff +++ /dev/null @@ -1,77 +0,0 @@ -.\" $Id: TIFFFieldReadCount.3tiff,v 1.1 2012-07-29 15:45:30 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldReadCount 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldReadCount \- Get number of values to be read from field -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFFieldReadCount(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldReadCount -returns the number of values available to be read from the specified -TIFF field; that is, the number of arguments that should be supplied to -.BR TIFFGetField . -For most field types this is a small positive integer, typically 1 or 2, -but there are some special values: -.br -.BR TIFF_VARIABLE -indicates that a variable number of values is possible; then, a -.BR uint16 -.I count -argument and a pointer -.I data -argument must be supplied to -.BR TIFFGetField . -.br -.BR TIFF_VARIABLE2 -is the same as -.BR TIFF_VARIABLE -except that the -.I count -argument must have type -.BR uint32 . -.br -.BR TIFF_SPP -indicates that the number of arguments is equal to the image's -number of samples per pixel. -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldReadCount -returns an integer. -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldTag.3tiff b/tiff/man/TIFFFieldTag.3tiff deleted file mode 100755 index bf8174e..0000000 --- a/tiff/man/TIFFFieldTag.3tiff +++ /dev/null @@ -1,56 +0,0 @@ -.\" $Id: TIFFFieldTag.3tiff,v 1.1 2012-07-29 15:45:30 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldTag 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldTag \- Get TIFF field tag value from field information -.SH SYNOPSIS -.B "#include " -.sp -.BI "uint32 TIFFFieldTag(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldTag -returns the numeric tag value for a TIFF field. -This can be compared to various constants exported by the -.BR libtiff -header files, such as -.BR TIFFTAG_IMAGEWIDTH . -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldTag -returns an integer tag value. -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFieldWriteCount.3tiff b/tiff/man/TIFFFieldWriteCount.3tiff deleted file mode 100755 index 6330532..0000000 --- a/tiff/man/TIFFFieldWriteCount.3tiff +++ /dev/null @@ -1,88 +0,0 @@ -.\" $Id: TIFFFieldWriteCount.3tiff,v 1.1 2012-07-29 15:45:30 tgl Exp $ -.\" -.\" Copyright (c) 2012, Tom Lane -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFieldWriteCount 3TIFF "July 26, 2012" "libtiff" -.SH NAME -TIFFFieldWriteCount \- Get number of values to be written to field -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFFieldWriteCount(const TIFFField* " fip ")" -.SH DESCRIPTION -.BR TIFFFieldWriteCount -returns the number of values to be written into the specified -TIFF field; that is, the number of arguments that should be supplied to -.BR TIFFSetField . -For most field types this is a small positive integer, typically 1 or 2, -but there are some special values: -.br -.BR TIFF_VARIABLE -indicates that a variable number of values is possible; then, a -.BR uint16 -.I count -argument and a pointer -.I data -argument must be supplied to -.BR TIFFSetField . -.br -.BR TIFF_VARIABLE2 -is the same as -.BR TIFF_VARIABLE -except that the -.I count -argument must have type -.BR uint32 . -(On most modern machines, this makes no practical difference, and the -.I count -argument can simply be an -.BR int -in either case.) -.br -.BR TIFF_SPP -indicates that the number of arguments must be equal to the image's -number of samples per pixel. -.P -.I fip -is a field information pointer previously returned by -.BR TIFFFindField , -.BR TIFFFieldWithTag , -or -.BR TIFFFieldWithName . -.P -For most field types, -.BR TIFFFieldWriteCount -returns the same value as -.BR TIFFFieldReadCount , -but there are some exceptions. -.br -.SH "RETURN VALUES" -.br -.BR TIFFFieldWriteCount -returns an integer. -.br -.SH "SEE ALSO" -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFFlush.3tiff b/tiff/man/TIFFFlush.3tiff deleted file mode 100755 index af32350..0000000 --- a/tiff/man/TIFFFlush.3tiff +++ /dev/null @@ -1,64 +0,0 @@ -.\" $Id: TIFFFlush.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFFlush 3TIFF "December 16, 1991" "libtiff" -.SH NAME -TIFFFlush, TIFFFlushData \- flush pending writes to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFFlush(TIFF *" tif ")" -.br -.BI "int TIFFFlushData(TIFF *" tif ")" -.SH DESCRIPTION -.IR TIFFFlush -causes any pending writes for the specified file (including writes for the -current directory) to be done. In normal operation this call is never needed \- -the library automatically does any flushing required. -.PP -.IR TIFFFlushData -flushes any pending image data for the specified file to be written out; -directory-related data are not flushed. In normal operation this call is never -needed \- the library automatically does any flushing required. -.SH "RETURN VALUES" -0 is returned if an error is encountered, otherwise 1 is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteEncodedStrip (3TIFF), -.BR TIFFWriteEncodedTile (3TIFF), -.BR TIFFWriteRawStrip (3TIFF), -.BR TIFFWriteRawTile (3TIFF), -.BR TIFFWriteScanline (3TIFF), -.BR TIFFWriteTile (3TIFF) -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFGetField.3tiff b/tiff/man/TIFFGetField.3tiff deleted file mode 100755 index 0624ee9..0000000 --- a/tiff/man/TIFFGetField.3tiff +++ /dev/null @@ -1,229 +0,0 @@ -.\" $Id: TIFFGetField.3tiff,v 1.6 2012-05-19 23:15:22 bfriesen Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFGetField 3TIFF "March 18, 2005" "libtiff" -.SH NAME -TIFFGetField, TIFFVGetField \- get the value(s) of a tag in an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFGetField(TIFF *" tif ", ttag_t " tag ", " ... ")" -.sp -.B "#include " -.sp -.BI "int TIFFVGetField(TIFF *" tif ", ttag_t " tag ", va_list " ap ")" -.br -.BI "int TIFFGetFieldDefaulted(TIFF *" tif ", ttag_t " tag ", " ... ")" -.br -.BI "int TIFFVGetFieldDefaulted(TIFF *" tif ", ttag_t " tag ", va_list " ap ")" -.SH DESCRIPTION -.IR TIFFGetField -returns the value of a tag or pseudo-tag associated with the the current -directory of the opened -.SM TIFF -file -.IR tif . -(A -.I pseudo-tag -is a parameter that is used to control the operation of the -.SM TIFF -library but whose value is not read or written to the underlying file.) The -file must have been previously opened with -.IR TIFFOpen (3TIFF). -The tag is identified by -.IR tag , -one of the values defined in the include file -.B tiff.h -(see also the table below). The type and number of values returned is -dependent on the tag being requested. The programming interface uses a -variable argument list as prescribed by the -.IR stdarg (3) -interface. The returned values should only be interpreted if -.IR TIFFGetField -returns 1. -.PP -.IR TIFFVGetField -is functionally equivalent to -.IR TIFFGetField -except that it takes a pointer to a variable argument list. -.I TIFFVGetField -is useful for layering interfaces on top of the functionality provided by -.IR TIFFGetField . -.PP -.IR TIFFGetFieldDefaulted -and -.IR TIFFVGetFieldDefaulted -are identical to -.IR TIFFGetField -and -.IR TIFFVGetField , -except that if a tag is not defined in the current directory and it has a -default value, then the default value is returned. -.PP -The tags understood by -.IR libtiff(3TIFF), -the number of parameter values, and the types for the returned values are -shown below. The data types are specified as in C and correspond to the types -used to specify tag values to -.IR TIFFSetField (3TIFF). -Remember that -.IR TIFFGetField -returns parameter values, so all the listed data types are pointers to storage -where values should be returned. -Consult the -.SM TIFF -specification (or relevant industry specification) for information on the -meaning of each tag and their possible values. -.PP -.nf -.ta \w'TIFFTAG_CONSECUTIVEBADFAXLINES'u+2n +\w'Count'u+2n +\w'TIFFFaxFillFunc*'u+2n -\fITag Name\fP \fICount\fP \fITypes\fP \fINotes\fP -.sp 5p -TIFFTAG_ARTIST 1 char** -TIFFTAG_BADFAXLINES 1 uint32* -TIFFTAG_BITSPERSAMPLE 1 uint16* -TIFFTAG_CLEANFAXDATA 1 uint16* -TIFFTAG_COLORMAP 3 uint16** 1<" -.sp -.BI "TIFF* TIFFOpen(const char *" filename ", const char *" mode ")" -.br -.BI "TIFF* TIFFFdOpen(const int " fd ", const char *" filename ", const char *" mode ")" -.sp -.B "typedef tsize_t (*TIFFReadWriteProc)(thandle_t, tdata_t, tsize_t);" -.br -.B "typedef toff_t (*TIFFSeekProc)(thandle_t, toff_t, int);" -.br -.B "typedef int (*TIFFCloseProc)(thandle_t);" -.br -.B "typedef toff_t (*TIFFSizeProc)(thandle_t);" -.br -.B "typedef int (*TIFFMapFileProc)(thandle_t, tdata_t*, toff_t*);" -.br -.B "typedef void (*TIFFUnmapFileProc)(thandle_t, tdata_t, toff_t);" -.sp -.BI "TIFF* TIFFClientOpen(const char *" filename ", const char *" mode ", thandle_t " clientdata ", TIFFReadWriteProc " readproc ", TIFFReadWriteProc " writeproc ", TIFFSeekProc " seekproc ", TIFFCloseProc " closeproc ", TIFFSizeProc " sizeproc ", TIFFMapFileProc " mapproc ", TIFFUnmapFileProc " unmapproc ")" -.SH DESCRIPTION -.IR TIFFOpen -opens a -.SM TIFF -file whose name is -.I filename -and returns a handle to be used in subsequent calls to routines in -.IR libtiff . -If the open operation fails, then zero is returned. -The -.I mode -parameter specifies if the file is to be opened for reading (``r''), -writing (``w''), or appending (``a'') and, optionally, whether -to override certain default aspects of library operation (see below). -When a file is opened for appending, existing data will not -be touched; instead new data will be written as additional subfiles. -If an existing file is opened for writing, all previous data is -overwritten. -.PP -If a file is opened for reading, the first -.SM TIFF -directory in the file is automatically read -(also see -.IR TIFFSetDirectory (3TIFF) -for reading directories other than the first). -If a file is opened for writing or appending, a default directory -is automatically created for writing subsequent data. -This directory has all the default values specified in -.SM TIFF -Revision 6.0: -.IR BitsPerSample =1, -.IR ThreshHolding "=bilevel art scan," -.IR FillOrder =1 -(most significant bit of each data byte is filled first), -.IR Orientation =1 -(the 0th row represents the visual top of the image, and the 0th -column represents the visual left hand side), -.IR SamplesPerPixel =1, -.IR RowsPerStrip =infinity, -.IR ResolutionUnit =2 -(inches), and -.IR Compression =1 -(no compression). -To alter these values, or to define values for additional fields, -.IR TIFFSetField (3TIFF) -must be used. -.PP -.IR TIFFFdOpen -is like -.IR TIFFOpen -except that it opens a -.SM TIFF -file given an open file descriptor -.IR fd . -The file's name and mode must reflect that of the open descriptor. -The object associated with the file descriptor -.BR "must support random access" . -.PP -.IR TIFFClientOpen -is like -.IR TIFFOpen -except that the caller supplies a collection of functions that the -library will use to do \s-1UNIX\s+1-like I/O operations. -The -.I readproc -and -.I writeproc -are called to read and write data at the current file position. -.I seekproc -is called to change the current file position a la -.IR lseek (2). -.I closeproc -is invoked to release any resources associated with an open file. -.I sizeproc -is invoked to obtain the size in bytes of a file. -.I mapproc -and -.I unmapproc -are called to map and unmap a file's contents in memory; c.f. -.IR mmap (2) -and -.IR munmap (2). -The -.I clientdata -parameter is an opaque ``handle'' passed to the client-specified -routines passed as parameters to -.IR TIFFClientOpen . -.SH OPTIONS -The open mode parameter can include the following flags in -addition to the ``r'', ``w'', and ``a'' flags. -Note however that option flags must follow the read-write-append -specification. -.TP -.B l -When creating a new file force information be written with -Little-Endian byte order (but see below). -By default the library will create new files using the native -.SM CPU -byte order. -.TP -.B b -When creating a new file force information be written with -Big-Endian byte order (but see below). -By default the library will create new files using the native -.SM CPU -byte order. -.TP -.B L -Force image data that is read or written to be treated with -bits filled from Least Significant Bit (\s-1LSB\s+1) to -Most Significant Bit (\s-1MSB\s+1). -Note that this is the opposite to the way the library has -worked from its inception. -.TP -.B B -Force image data that is read or written to be treated with -bits filled from Most Significant Bit (\s-1MSB\s+1) to -Least Significant Bit (\s-1LSB\s+1); this is the default. -.TP -.B H -Force image data that is read or written to be treated with -bits filled in the same order as the native -.SM CPU. -.TP -.B M -Enable the use of memory-mapped files for images opened read-only. -If the underlying system does not support memory-mapped files -or if the specific image being opened cannot be memory-mapped -then the library will fallback to using the normal system interface -for reading information. -By default the library will attempt to use memory-mapped files. -.TP -.B m -Disable the use of memory-mapped files. -.TP -.B C -Enable the use of ``strip chopping'' when reading images -that are comprised of a single strip or tile of uncompressed data. -Strip chopping is a mechanism by which the library will automatically -convert the single-strip image to multiple strips, -each of which has about 8 Kilobytes of data. -This facility can be useful in reducing the amount of memory used -to read an image because the library normally reads each strip -in its entirety. -Strip chopping does however alter the apparent contents of the -image because when an image is divided into multiple strips it -looks as though the underlying file contains multiple separate -strips. -Finally, note that default handling of strip chopping is a compile-time -configuration parameter. -The default behaviour, for backwards compatibility, is to enable -strip chopping. -.TP -.B c -Disable the use of strip chopping when reading images. -.TP -.B h -Read TIFF header only, do not load the first image directory. That could be -useful in case of the broken first directory. We can open the file and proceed -to the other directories. -.SH "BYTE ORDER" -The -.SM TIFF -specification (\fBall versions\fP) states that compliant readers -.IR "must be capable of reading images written in either byte order" . -Nonetheless some software that claims to support the reading of -.SM TIFF -images is incapable of reading images in anything but the native -.SM CPU -byte order on which the software was written. -(Especially notorious -are applications written to run on Intel-based machines.) -By default the library will create new files with the native -byte-order of the -.SM CPU -on which the application is run. -This ensures optimal performance and is portable to any application -that conforms to the TIFF specification. -To force the library to use a specific byte-order when creating -a new file the ``b'' and ``l'' option flags may be included in -the call to open a file; for example, ``wb'' or ``wl''. -.SH "RETURN VALUES" -Upon successful completion -.IR TIFFOpen , -.IR TIFFFdOpen , -and -.IR TIFFClientOpen -return a -.SM TIFF -pointer. -Otherwise, NULL is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -Likewise, warning messages are directed to the -.IR TIFFWarning (3TIFF) -routine. -.PP -\fB"%s": Bad mode\fP. -The specified -.I mode -parameter was not one of ``r'' (read), ``w'' (write), or ``a'' (append). -.PP -.BR "%s: Cannot open" . -.IR TIFFOpen () -was unable to open the specified filename for read/writing. -.PP -.BR "Cannot read TIFF header" . -An error occurred while attempting to read the header information. -.PP -.BR "Error writing TIFF header" . -An error occurred while writing the default header information -for a new file. -.PP -.BR "Not a TIFF file, bad magic number %d (0x%x)" . -The magic number in the header was not (hex) -0x4d4d or (hex) 0x4949. -.PP -.BR "Not a TIFF file, bad version number %d (0x%x)" . -The version field in the header was not 42 (decimal). -.PP -.BR "Cannot append to file that has opposite byte ordering" . -A file with a byte ordering opposite to the native byte -ordering of the current machine was opened for appending (``a''). -This is a limitation of the library. -.SH "SEE ALSO" -.IR libtiff (3TIFF), -.IR TIFFClose (3TIFF) diff --git a/tiff/man/TIFFPrintDirectory.3tiff b/tiff/man/TIFFPrintDirectory.3tiff deleted file mode 100755 index 437b09e..0000000 --- a/tiff/man/TIFFPrintDirectory.3tiff +++ /dev/null @@ -1,70 +0,0 @@ -.\" $Id: TIFFPrintDirectory.3tiff,v 1.1 2004-11-11 14:39:16 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFPrintDirectory 3TIFF "December 12, 1991" "libtiff" -.SH NAME -TIFFPrintDirectory \- print a description of a -.SM TIFF -directory -.SH SYNOPSIS -.B "#include " -.sp -.BI "void TIFFPrintDirectory(TIFF *" tif ", FILE *" fd ", long " flags ")" -.SH DESCRIPTION -.I TIFFPrintDirectory -prints a description of the current directory in the specified -.SM TIFF -file to the standard I/O output stream -.IR fd . -The -.I flags -parameter is used to control the -.I "level of detail" -of the printed information; it is a bit-or of the flags defined in -.BR tiffio.h : -.sp .5 -.nf -.ta \w'#define 'u +\w'TIFFPRINT_JPEGDCTABLES 'u +\w'0x200 'u -#define TIFFPRINT_NONE 0x0 /* no extra info */ -#define TIFFPRINT_STRIPS 0x1 /* strips/tiles info */ -#define TIFFPRINT_CURVES 0x2 /* color/gray response curves */ -#define TIFFPRINT_COLORMAP 0x4 /* colormap */ -#define TIFFPRINT_JPEGQTABLES 0x100 /* JPEG Q matrices */ -#define TIFFPRINT_JPEGACTABLES 0x200 /* JPEG AC tables */ -#define TIFFPRINT_JPEGDCTABLES 0x200 /* JPEG DC tables */ -.fi -.SH NOTES -In C++ the -.I flags -parameter defaults to 0. -.SH "RETURN VALUES" -None. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.IR libtiff (3TIFF), -.IR TIFFOpen (3TIFF), -.IR TIFFReadDirectory (3TIFF), -.IR TIFFSetDirectory (3TIFF) diff --git a/tiff/man/TIFFRGBAImage.3tiff b/tiff/man/TIFFRGBAImage.3tiff deleted file mode 100755 index ef1a85c..0000000 --- a/tiff/man/TIFFRGBAImage.3tiff +++ /dev/null @@ -1,286 +0,0 @@ -.\" $Id: TIFFRGBAImage.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFRGBAImage 3TIFF "October 29, 2004" "libtiff" -.SH NAME -TIFFRGBAImageOK, TIFFRGBAImageBegin, TIFFRGBAImageGet, TIFFRGBAImageEnd -\- read and decode an image into a raster -.SH SYNOPSIS -.B "#include " -.sp -.B "typedef unsigned char TIFFRGBValue;" -.B "typedef struct _TIFFRGBAImage TIFFRGBAImage;" -.sp -.BI "int TIFFRGBAImageOK(TIFF *" tif ", char " emsg[1024] ")" -.br -.BI "int TIFFRGBAImageBegin(TIFFRGBAImage *" img ", TIFF* " tif ", int " stopOnError ", char " emsg[1024] ")" -.br -.BI "int TIFFRGBAImageGet(TIFFRGBAImage *" img ", uint32* " raster ", uint32 " width " , uint32 " height ")" -.br -.BI "void TIFFRGBAImageEnd(TIFFRGBAImage *" img ")" -.br -.SH DESCRIPTION -The routines described here provide a high-level interface -through which -.SM TIFF -images may be read into memory. -Images may be strip- or tile-based and have a variety of different -characteristics: bits/sample, samples/pixel, photometric, etc. -Decoding state is encapsulated in a -.I TIFFRGBAImage -structure making it possible to capture state for multiple images -and quickly switch between them. -The target raster format can be customized to a particular application's -needs by installing custom routines that manipulate image data -according to application requirements. -.PP -The default usage for these routines is: check if an image can -be processed using -.IR TIFFRGBAImageOK , -construct a decoder state block using -.IR TIFFRGBAImageBegin , -read and decode an image into a target raster using -.IR TIFFRGBAImageGet , -and then -release resources using -.IR TIFFRGBAImageEnd . -.I TIFFRGBAImageGet -can be called multiple times to decode an image using different -state parameters. -If multiple images are to be displayed and there is not enough -space for each of the decoded rasters, multiple state blocks can -be managed and then calls can be made to -.I TIFFRGBAImageGet -as needed to display an image. -.PP -The generated raster is assumed to be an array of -.I width -times -.I height -32-bit entries, where -.I width -must be less than or equal to the width of the image (\c -.I height -may be any non-zero size). -If the raster dimensions are smaller than the image, the image data -is cropped to the raster bounds. -If the raster height is greater than that of the image, then the -image data are placed in the lower part of the raster. -(Note that the raster is assume to be organized such that the pixel -at location (\fIx\fP,\fIy\fP) is \fIraster\fP[\fIy\fP*\fIwidth\fP+\fIx\fP]; -with the raster origin in the -.B lower-left -hand corner.) -.PP -Raster pixels are 8-bit packed red, green, blue, alpha samples. -The macros -.IR TIFFGetR , -.IR TIFFGetG , -.IR TIFFGetB , -and -.I TIFFGetA -should be used to access individual samples. -Images without Associated Alpha matting information have a constant -Alpha of 1.0 (255). -.PP -.I TIFFRGBAImageGet -converts non-8-bit images by scaling sample values. -Palette, grayscale, bilevel, -.SM CMYK\c -, and YCbCr images are converted to -.SM RGB -transparently. -Raster pixels are returned uncorrected by any colorimetry information -present in the directory. -.PP -The parameter -.I stopOnError -specifies how to act if an error is encountered while reading -the image. -If -.I stopOnError -is non-zero, then an error will terminate the operation; otherwise -.I TIFFRGBAImageGet -will continue processing data until all the possible data in the -image have been requested. -.SH "ALTERNATE RASTER FORMATS" -To use the core support for reading and processing -.SM TIFF -images, but write the resulting raster data in a different format -one need only override the ``\fIput methods\fP'' used to store raster data. -These methods are are defined in the -.I TIFFRGBAImage -structure and initially setup by -.I TIFFRGBAImageBegin -to point to routines that pack raster data in the default -.SM ABGR -pixel format. -Two different routines are used according to the physical organization -of the image data in the file: -.IR PlanarConfiguration =1 -(packed samples), -and -.IR PlanarConfiguration =2 -(separated samples). -Note that this mechanism can be used to transform the data before -storing it in the raster. -For example one can convert data -to colormap indices for display on a colormap display. -.SH "SIMULTANEOUS RASTER STORE AND DISPLAY" -It is simple to display an image as it is being read into memory -by overriding the put methods as described above for supporting -alternate raster formats. -Simply keep a reference to the default put methods setup by -.I TIFFRGBAImageBegin -and then invoke them before or after each display operation. -For example, the -.IR tiffgt (1) -utility uses the following put method to update the display as -the raster is being filled: -.sp -.nf -.ft C -static void -putContigAndDraw(TIFFRGBAImage* img, uint32* raster, - uint32 x, uint32 y, uint32 w, uint32 h, - int32 fromskew, int32 toskew, - unsigned char* cp) -{ - (*putContig)(img, raster, x, y, w, h, fromskew, toskew, cp); - if (x+w == width) { - w = width; - if (img->orientation == ORIENTATION_TOPLEFT) - lrectwrite(0, y-(h-1), w-1, y, raster-x-(h-1)*w); - else - lrectwrite(0, y, w-1, y+h-1, raster); - } -} -.ft R -.fi -.sp -(the original routine provided by the library is saved in the -variable -.IR putContig .) -.SH "SUPPORTING ADDITIONAL TIFF FORMATS" -The -.I TIFFRGBAImage -routines support the most commonly encountered flavors of -.SM TIFF. -It is possible to extend this support by overriding the ``\fIget method\fP'' -invoked by -.I TIFFRGBAImageGet -to read -.SM TIFF -image data. -Details of doing this are a bit involved, it is best to make a copy -of an existing get method and modify it to suit the needs of an -application. -.SH NOTES -Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -.I SamplesPerPixel -minus -.IR ExtraSamples ). -.PP -Palette image colormaps that appear to be incorrectly written -as 8-bit values are automatically scaled to 16-bits. -.SH "RETURN VALUES" -All routines return -1 if the operation was successful. -Otherwise, 0 is returned if an error was encountered and -.I stopOnError -is zero. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Sorry, can not handle %d-bit pictures" . -The image had -.I BitsPerSample -other than 1, 2, 4, 8, or 16. -.PP -.BR "Sorry, can not handle %d-channel images" . -The image had -.I SamplesPerPixel -other than 1, 3, or 4. -.PP -\fBMissing needed "PhotometricInterpretation" tag\fP. -The image did not have a tag that describes how to display -the data. -.PP -\fBNo "PhotometricInterpretation" tag, assuming RGB\fP. -The image was missing a tag that describes how to display it, -but because it has 3 or 4 samples/pixel, it is assumed to be -.SM RGB. -.PP -\fBNo "PhotometricInterpretation" tag, assuming min-is-black\fP. -The image was missing a tag that describes how to display it, -but because it has 1 sample/pixel, it is assumed to be a grayscale -or bilevel image. -.PP -.BR "No space for photometric conversion table" . -There was insufficient memory for a table used to convert -image samples to 8-bit -.SM RGB. -.PP -\fBMissing required "Colormap" tag\fP. -A Palette image did not have a required -.I Colormap -tag. -.PP -.BR "No space for tile buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "No space for strip buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "Can not handle format" . -The image has a format (combination of -.IR BitsPerSample , -.IR SamplesPerPixel , -and -.IR PhotometricInterpretation ) -that can not be handled. -.PP -.BR "No space for B&W mapping table" . -There was insufficient memory to allocate a table used to map -grayscale data to -.SM RGB. -.PP -.BR "No space for Palette mapping table" . -There was insufficient memory to allocate a table used to map -data to 8-bit -.SM RGB. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadRGBAImage (3TIFF), -.BR TIFFReadRGBAImageOriented (3TIFF), -.BR TIFFReadRGBAStrip (3TIFF), -.BR TIFFReadRGBATile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadDirectory.3tiff b/tiff/man/TIFFReadDirectory.3tiff deleted file mode 100755 index 000bf0a..0000000 --- a/tiff/man/TIFFReadDirectory.3tiff +++ /dev/null @@ -1,164 +0,0 @@ -.\" $Id: TIFFReadDirectory.3tiff,v 1.3 2010-12-12 01:45:35 faxguy Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadDirectory 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFReadDirectory \- get the contents of the next directory in an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFReadDirectory(TIFF *" tif ")" -.SH DESCRIPTION -Read the next directory in the specified file and make it the current -directory. Applications only need to call -.I TIFFReadDirectory -to read multiple subfiles in a single -.SM TIFF -file\(em -the first directory in a file is automatically read when -.IR TIFFOpen -is called. -.SH NOTES -If the library is compiled with -.SM STRIPCHOP_SUPPORT -enabled, then images that have a single uncompressed strip or tile of data are -automatically treated as if they were made up of multiple strips or tiles of -approximately 8 kilobytes each. This operation is done only in-memory; it does -not alter the contents of the file. However, the construction of the ``chopped -strips'' is visible to the application through the number of strips [tiles] -returned by -.I TIFFNumberOfStrips -[\c -.IR TIFFNumberOfTiles ]. -.SH "RETURN VALUES" -If the next directory was successfully read, 1 is returned. Otherwise, 0 is -returned if an error was encountered, or if there are no more directories to -be read. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -All warning messages are directed to the -.IR TIFFWarning (3TIFF) -routine. -.PP -\fBSeek error accessing TIFF directory\fP. -An error occurred while positioning to the location of the -directory. -.PP -\fBWrong data type %d for field "%s"\fP. -The tag entry in the directory had an incorrect data type. -For example, an -.I ImageDescription -tag with a -.SM SHORT -data type. -.PP -\fBTIFF directory is missing required "%s" field\fP. -The specified tag is required to be present by the -.SM TIFF -5.0 specification, but is missing. -The directory is (usually) unusable. -.PP -\fB%s: Rational with zero denominator\fP. -A directory tag has a -.SM RATIONAL -value whose denominator is zero. -.PP -\fBIncorrect count %d for field "%s" (%lu, expecting %lu); tag ignored\fP. -The specified tag's count field is bad. -For example, a count other than 1 for a -.I SubFileType -tag. -.PP -\fBCannot handle different per-sample values for field "%s"\fP. -The tag has -.I SamplesPerPixel -values and they are not all the same; e.g. -.IR BitsPerSample . -The library is unable to handle images of this sort. -.PP -\fBCount mismatch for field "%s"; expecting %d, got %d\fP. -The count field in a -tag does not agree with the number expected by the library. -This should never happen, so if it does, the library refuses to -read the directory. -.PP -\fBInvalid TIFF directory; tags are not sorted in ascending order\fP. -The directory tags are not properly sorted as specified -in the -.SM TIFF -5.0 specification. -This error is not fatal. -.PP -\fBIgnoring unknown field with tag %d (0x%x)\fP. -An unknown tag was encountered in the directory; -the library ignores all such tags. -.PP -\fBTIFF directory is missing required "ImageLength" field\fP. -The image violates the specification by not having a necessary field. -There is no way for the library to recover from this error. -.PP -\fBTIFF directory is missing required "PlanarConfig" field\fP. -The image violates the specification by not having a necessary field. -There is no way for the library to recover from this error. -.PP -\fBTIFF directory is missing required "StripOffsets" field\fP. -The image has multiple strips, but is missing the tag that -specifies the file offset to each strip of data. -There is no way for the library to recover from this error. -.PP -\fBTIFF directory is missing required "TileOffsets" field\fP. -The image has multiple tiles, but is missing the tag that -specifies the file offset to each tile of data. -There is no way for the library to recover from this error. -.PP -\fBTIFF directory is missing required "StripByteCounts" field\fP. -The image has multiple strips, but is missing the tag that -specifies the size of each strip of data. -There is no way for the library to recover from this error. -.PP -\fBTIFF directory is missing required "StripByteCounts" field, calculating from imagelength\fP. -The image violates the specification by not having a necessary field. -However, when the image is comprised of only one strip or tile, the -library will estimate the missing value based on the file size. -.PP -\fBBogus "StripByteCounts" field, ignoring and calculating from imagelength\fP. -Certain vendors violate the specification by writing zero for -the StripByteCounts tag when they want to leave the value -unspecified. -If the image has a single strip, the library will estimate -the missing value based on the file size. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteDirectory (3TIFF), -.BR TIFFSetDirectory (3TIFF), -.BR TIFFSetSubDirectory (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadEncodedStrip.3tiff b/tiff/man/TIFFReadEncodedStrip.3tiff deleted file mode 100755 index d2d7b67..0000000 --- a/tiff/man/TIFFReadEncodedStrip.3tiff +++ /dev/null @@ -1,78 +0,0 @@ -.\" $Id: TIFFReadEncodedStrip.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadEncodedStrip 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFReadEncodedStrip \- read and decode a strip of data from an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFReadEncodedStrip(TIFF *" tif ", tstrip_t " strip ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Read the specified strip of data and place up to -.I size -bytes of decompressed information in the (user supplied) data buffer. -.SH NOTES -The value of -.I strip -is a ``raw strip number.'' -That is, the caller must take into account whether or not the data are -organized in separate planes (\c -.IR PlanarConfiguration =2). -To read a full strip of data the data buffer should typically be at least as -large as the number returned by -.BR TIFFStripSize (3TIFF). -If the -1 passed in -.I size -parameter, the whole strip will be read. You should be sure you have enough -space allocated for the buffer. -.PP -The library attempts to hide bit- and byte-ordering differences between the -image and the native machine by converting data to the native machine order. -Bit reversal is done if the -.I FillOrder -tag is opposite to the native machine bit order. 16- and 32-bit samples are -automatically byte-swapped if the file was written with a byte order opposite -to the native machine byte order, -.SH "RETURN VALUES" -The actual number of bytes of data that were placed in -.I buf -is returned; -.IR TIFFReadEncodedStrip -returns \-1 if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadRawStrip (3TIFF), -.BR TIFFReadScanline (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadEncodedTile.3tiff b/tiff/man/TIFFReadEncodedTile.3tiff deleted file mode 100755 index 5f6d900..0000000 --- a/tiff/man/TIFFReadEncodedTile.3tiff +++ /dev/null @@ -1,76 +0,0 @@ -.\" $Id: TIFFReadEncodedTile.3tiff,v 1.3 2006-10-13 07:22:01 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadEncodedTile 3TIFF "October 13, 2006" "libtiff" -.SH NAME -TIFFReadEncodedTile \- read and decode a tile of data from an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFReadEncodedTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Read the specified tile of data and place up to -.I size -bytes of decompressed information in the (user supplied) data buffer. -.SH NOTES -The value of -.I tile -is a ``raw tile number.'' -That is, the caller must take into account whether or not the data are -organized in separate planes (\c -.IR PlanarConfiguration =2). -.IR TIFFComputeTile -automatically does this when converting an (x,y,z,sample) coordinate quadruple -to a tile number. To read a full tile of data the data buffer should be at -least as large as the value returned by -.IR TIFFTileSize . -.PP -The library attempts to hide bit- and byte-ordering differences between the -image and the native machine by converting data to the native machine order. -Bit reversal is done if the -.I FillOrder -tag is opposite to the native machine bit order. 16- and 32-bit samples are -automatically byte-swapped if the file was written with a byte order opposite -to the native machine byte order, -.SH "RETURN VALUES" -The actual number of bytes of data that were placed in -.I buf -is returned; -.IR TIFFReadEncodedTile -returns \-1 if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadRawTile (3TIFF), -.BR TIFFReadTile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadRGBAImage.3tiff b/tiff/man/TIFFReadRGBAImage.3tiff deleted file mode 100755 index 5d43ce3..0000000 --- a/tiff/man/TIFFReadRGBAImage.3tiff +++ /dev/null @@ -1,218 +0,0 @@ -.\" $Id: TIFFReadRGBAImage.3tiff,v 1.4 2006-10-13 07:22:01 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadRGBAImage 3TIFF "October 13, 2006" "libtiff" -.SH NAME -TIFFReadRGBAImage, TIFFReadRGBAImageOriented \- read and decode an image -into a fixed-format raster -.SH SYNOPSIS -.B "#include " -.sp -.B "#define TIFFGetR(abgr) ((abgr) & 0xff)" -.br -.B "#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)" -.br -.B "#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)" -.br -.B "#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff)" -.sp -.BI "int TIFFReadRGBAImage(TIFF *" tif ", uint32 " width ", uint32 " height ", uint32 *" raster ", int " stopOnError ")" -.br -.BI "int TIFFReadRGBAImageOriented(TIFF *" tif ", uint32 " width ", uint32 " height ", uint32 *" raster ", int " orientation ", int " stopOnError ")" -.br -.SH DESCRIPTION -.IR TIFFReadRGBAImage -reads a strip- or tile-based image into memory, storing the -result in the user supplied -.IR raster . -The raster is assumed to be an array of -.I width -times -.I height -32-bit entries, where -.I width -must be less than or equal to the width of the image (\c -.I height -may be any non-zero size). -If the raster dimensions are smaller than the image, the image data -is cropped to the raster bounds. -If the raster height is greater than that of the image, then the -image data are placed in the lower part of the raster. -(Note that the raster is assume to be organized such that the pixel -at location (\fIx\fP,\fIy\fP) is \fIraster\fP[\fIy\fP*\fIwidth\fP+\fIx\fP]; -with the raster origin in the lower-left hand corner.) -.PP -.IR TIFFReadRGBAImageOriented -works like -.IR TIFFReadRGBAImage -with except of that user can specify the raster origin position with the -.I orientation -parameter. Four orientations supported: -.TP -.B ORIENTATION_TOPLEFT -origin in top-left corner, -.TP -.B ORIENTATION_TOPRIGHT -origin in top-right corner, -.TP -.B ORIENTATION_BOTLEFT -origin in bottom-left corner -and -.TP -.B ORIENTATION_BOTRIGHT -origin in bottom-right corner. -.LP -If you choose -.B ORIENTATION_BOTLEFT -result will be the same as returned by the -.IR TIFFReadRGBAImage. -.PP -Raster pixels are 8-bit packed red, green, blue, alpha samples. -The macros -.IR TIFFGetR , -.IR TIFFGetG , -.IR TIFFGetB , -and -.I TIFFGetA -should be used to access individual samples. -Images without Associated Alpha matting information have a constant -Alpha of 1.0 (255). -.PP -.I TIFFReadRGBAImage -converts non-8-bit images by scaling sample values. -Palette, grayscale, bilevel, -.SM CMYK\c -, and YCbCr images are converted to -.SM RGB -transparently. -Raster pixels are returned uncorrected by any colorimetry information -present in the directory. -.PP -The paramater -.I stopOnError -specifies how to act if an error is encountered while reading -the image. -If -.I stopOnError -is non-zero, then an error will terminate the operation; otherwise -.I TIFFReadRGBAImage -will continue processing data until all the possible data in the -image have been requested. -.SH NOTES -In C++ the -.I stopOnError -parameter defaults to 0. -.PP -Samples must be either 1, 2, 4, 8, or 16 bits. -Colorimetric samples/pixel must be either 1, 3, or 4 (i.e. -.I SamplesPerPixel -minus -.IR ExtraSamples ). -.PP -Palettte image colormaps that appear to be incorrectly written -as 8-bit values are automatically scaled to 16-bits. -.PP -.I TIFFReadRGBAImage -is just a wrapper around the more general -.IR TIFFRGBAImage (3TIFF) -facilities. -.SH "RETURN VALUES" -1 is returned if the image was successfully read and converted. -Otherwise, 0 is returned if an error was encountered and -.I stopOnError -is zero. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Sorry, can not handle %d-bit pictures" . -The image had -.I BitsPerSample -other than 1, 2, 4, 8, or 16. -.PP -.BR "Sorry, can not handle %d-channel images" . -The image had -.I SamplesPerPixel -other than 1, 3, or 4. -.PP -\fBMissing needed "PhotometricInterpretation" tag\fP. -The image did not have a tag that describes how to display -the data. -.PP -\fBNo "PhotometricInterpretation" tag, assuming RGB\fP. -The image was missing a tag that describes how to display it, -but because it has 3 or 4 samples/pixel, it is assumed to be -.SM RGB. -.PP -\fBNo "PhotometricInterpretation" tag, assuming min-is-black\fP. -The image was missing a tag that describes how to display it, -but because it has 1 sample/pixel, it is assumed to be a grayscale -or bilevel image. -.PP -.BR "No space for photometric conversion table" . -There was insufficient memory for a table used to convert -image samples to 8-bit -.SM RGB. -.PP -\fBMissing required "Colormap" tag\fP. -A Palette image did not have a required -.I Colormap -tag. -.PP -.BR "No space for tile buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "No space for strip buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "Can not handle format" . -The image has a format (combination of -.IR BitsPerSample , -.IR SamplesPerPixel , -and -.IR PhotometricInterpretation ) -that -.I TIFFReadRGBAImage -can not handle. -.PP -.BR "No space for B&W mapping table" . -There was insufficient memory to allocate a table used to map -grayscale data to -.SM RGB. -.PP -.BR "No space for Palette mapping table" . -There was insufficient memory to allocate a table used to map -data to 8-bit -.SM RGB. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFRGBAImage (3TIFF), -.BR TIFFReadRGBAStrip (3TIFF), -.BR TIFFReadRGBATile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadRGBAStrip.3tiff b/tiff/man/TIFFReadRGBAStrip.3tiff deleted file mode 100755 index a8bb189..0000000 --- a/tiff/man/TIFFReadRGBAStrip.3tiff +++ /dev/null @@ -1,170 +0,0 @@ -.\" $Id: TIFFReadRGBAStrip.3tiff,v 1.3 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadRGBAStrip 3TIFF "December 10, 1998" "libtiff" -.SH NAME -TIFFReadRGBAStrip \- read and decode an image strip into a fixed-format raster -.SH SYNOPSIS -.B "#include " -.sp -.B "#define TIFFGetR(abgr) ((abgr) & 0xff)" -.br -.B "#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)" -.br -.B "#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)" -.br -.B "#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff)" -.sp -.BI "int TIFFReadRGBAStrip(TIFF *" tif ", uint32 " row ", uint32 *" raster ")" -.SH DESCRIPTION -.IR TIFFReadRGBAStrip -reads a single strip of a strip-based image into memory, storing the result in -the user supplied RGBA -.IR raster . -The raster is assumed to be an array of width times rowsperstrip 32-bit -entries, where width is the width of the image (TIFFTAG_IMAGEWIDTH) and -rowsperstrip is the maximum lines in a strip (TIFFTAG_ROWSPERSTRIP). - -.PP -The -.IR row -value should be the row of the first row in the strip (strip * rowsperstrip, -zero based). - -.PP -Note that the raster is assume to be organized such that the pixel at location -(\fIx\fP,\fIy\fP) is \fIraster\fP[\fIy\fP*\fIwidth\fP+\fIx\fP]; with the -raster origin in the -.I lower-left hand corner -of the strip. That is bottom to top organization. When reading a partial last -strip in the file the last line of the image will begin at the beginning of -the buffer. - -.PP -Raster pixels are 8-bit packed red, green, blue, alpha samples. The macros -.IR TIFFGetR , -.IR TIFFGetG , -.IR TIFFGetB , -and -.I TIFFGetA -should be used to access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255). -.PP -See the -.IR TIFFRGBAImage (3TIFF) -page for more details on how various image types are converted to RGBA values. -.SH NOTES -Samples must be either 1, 2, 4, 8, or 16 bits. Colorimetric samples/pixel must -be either 1, 3, or 4 (i.e. -.I SamplesPerPixel -minus -.IR ExtraSamples ). -.PP -Palette image colormaps that appear to be incorrectly written as 8-bit values -are automatically scaled to 16-bits. -.PP -.I TIFFReadRGBAStrip -is just a wrapper around the more general -.IR TIFFRGBAImage (3TIFF) -facilities. It's main advantage over the similar -.IR TIFFReadRGBAImage() -function is that for large images a single buffer capable of holding the whole -image doesn't need to be allocated, only enough for one strip. The -.IR TIFFReadRGBATile() -function does a similar operation for tiled images. -.SH "RETURN VALUES" -1 is returned if the image was successfully read and converted. -Otherwise, 0 is returned if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Sorry, can not handle %d-bit pictures" . -The image had -.I BitsPerSample -other than 1, 2, 4, 8, or 16. -.PP -.BR "Sorry, can not handle %d-channel images" . -The image had -.I SamplesPerPixel -other than 1, 3, or 4. -.PP -\fBMissing needed "PhotometricInterpretation" tag\fP. -The image did not have a tag that describes how to display the data. -.PP -\fBNo "PhotometricInterpretation" tag, assuming RGB\fP. -The image was missing a tag that describes how to display it, but because it -has 3 or 4 samples/pixel, it is assumed to be -.SM RGB. -.PP -\fBNo "PhotometricInterpretation" tag, assuming min-is-black\fP. The image was -missing a tag that describes how to display it, but because it has 1 -sample/pixel, it is assumed to be a grayscale or bilevel image. -.PP -.BR "No space for photometric conversion table" . -There was insufficient memory for a table used to convert image samples to -8-bit -.SM RGB. -.PP -\fBMissing required "Colormap" tag\fP. -A Palette image did not have a required -.I Colormap -tag. -.PP -.BR "No space for tile buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "No space for strip buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "Can not handle format" . -The image has a format (combination of -.IR BitsPerSample , -.IR SamplesPerPixel , -and -.IR PhotometricInterpretation ) -that -.I TIFFReadRGBAImage -can not handle. -.PP -.BR "No space for B&W mapping table" . -There was insufficient memory to allocate a table used to map grayscale data -to -.SM RGB. -.PP -.BR "No space for Palette mapping table" . -There was insufficient memory to allocate a table used to map data to 8-bit -.SM RGB. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFRGBAImage (3TIFF), -.BR TIFFReadRGBAImage (3TIFF), -.BR TIFFReadRGBATile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ - diff --git a/tiff/man/TIFFReadRGBATile.3tiff b/tiff/man/TIFFReadRGBATile.3tiff deleted file mode 100755 index dfae1a9..0000000 --- a/tiff/man/TIFFReadRGBATile.3tiff +++ /dev/null @@ -1,171 +0,0 @@ -.\" $Id: TIFFReadRGBATile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadRGBATile 3TIFF "December 10, 1998" "libtiff" -.SH NAME -TIFFReadRGBATile \- read and decode an image tile into a fixed-format raster -.SH SYNOPSIS -.B "#include " -.sp -.B "#define TIFFGetR(abgr) ((abgr) & 0xff)" -.br -.B "#define TIFFGetG(abgr) (((abgr) >> 8) & 0xff)" -.br -.B "#define TIFFGetB(abgr) (((abgr) >> 16) & 0xff)" -.br -.B "#define TIFFGetA(abgr) (((abgr) >> 24) & 0xff)" -.sp -.BI "int TIFFReadRGBATile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 *" raster ")" -.SH DESCRIPTION -.IR TIFFReadRGBATile -reads a single tile of a tile-based image into memory, storing the result in -the user supplied RGBA -.IR raster . -The raster is assumed to be an array of width times length 32-bit entries, -where width is the width of a tile (TIFFTAG_TILEWIDTH) and length is the -height of a tile (TIFFTAG_TILELENGTH). - -.PP -The -.IR x -and -.IR y -values are the offsets from the top left corner to the top left corner of the -tile to be read. They must be an exact multiple of the tile width and length. - -.PP -Note that the raster is assume to be organized such that the pixel at location -(\fIx\fP,\fIy\fP) is \fIraster\fP[\fIy\fP*\fIwidth\fP+\fIx\fP]; with the -raster origin in the -.I lower-left hand corner -of the tile. That is bottom to top organization. Edge tiles which partly fall -off the image will be filled out with appropriate zeroed areas. - -.PP -Raster pixels are 8-bit packed red, green, blue, alpha samples. The macros -.IR TIFFGetR , -.IR TIFFGetG , -.IR TIFFGetB , -and -.I TIFFGetA -should be used to access individual samples. Images without Associated Alpha -matting information have a constant Alpha of 1.0 (255). -.PP -See the -.IR TIFFRGBAImage (3TIFF) -page for more details on how various image types are converted to RGBA values. -.SH NOTES -Samples must be either 1, 2, 4, 8, or 16 bits. Colorimetric samples/pixel must -be either 1, 3, or 4 (i.e. -.I SamplesPerPixel -minus -.IR ExtraSamples ). -.PP -Palette image colormaps that appear to be incorrectly written as 8-bit values -are automatically scaled to 16-bits. -.PP -.I TIFFReadRGBATile -is just a wrapper around the more general -.IR TIFFRGBAImage (3TIFF) -facilities. It's main advantage over the similar -.IR TIFFReadRGBAImage() -function is that for large images a single buffer capable of holding the whole -image doesn't need to be allocated, only enough for one tile. The -.IR TIFFReadRGBAStrip() -function does a similar operation for stripped images. -.SH "RETURN VALUES" -1 is returned if the image was successfully read and converted. -Otherwise, 0 is returned if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Sorry, can not handle %d-bit pictures" . -The image had -.I BitsPerSample -other than 1, 2, 4, 8, or 16. -.PP -.BR "Sorry, can not handle %d-channel images" . -The image had -.I SamplesPerPixel -other than 1, 3, or 4. -.PP -\fBMissing needed "PhotometricInterpretation" tag\fP. -The image did not have a tag that describes how to display the data. -.PP -\fBNo "PhotometricInterpretation" tag, assuming RGB\fP. -The image was missing a tag that describes how to display it, but because it -has 3 or 4 samples/pixel, it is assumed to be -.SM RGB. -.PP -\fBNo "PhotometricInterpretation" tag, assuming min-is-black\fP. -The image was missing a tag that describes how to display it, -but because it has 1 sample/pixel, it is assumed to be a grayscale -or bilevel image. -.PP -.BR "No space for photometric conversion table" . -There was insufficient memory for a table used to convert -image samples to 8-bit -.SM RGB. -.PP -\fBMissing required "Colormap" tag\fP. -A Palette image did not have a required -.I Colormap -tag. -.PP -.BR "No space for tile buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "No space for strip buffer" . -There was insufficient memory to allocate an i/o buffer. -.PP -.BR "Can not handle format" . -The image has a format (combination of -.IR BitsPerSample , -.IR SamplesPerPixel , -and -.IR PhotometricInterpretation ) -that -.I TIFFReadRGBAImage -can not handle. -.PP -.BR "No space for B&W mapping table" . -There was insufficient memory to allocate a table used to map -grayscale data to -.SM RGB. -.PP -.BR "No space for Palette mapping table" . -There was insufficient memory to allocate a table used to map data to 8-bit -.SM RGB. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFRGBAImage (3TIFF), -.BR TIFFReadRGBAImage (3TIFF), -.BR TIFFReadRGBAStrip (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadRawStrip.3tiff b/tiff/man/TIFFReadRawStrip.3tiff deleted file mode 100755 index 1f2d1d1..0000000 --- a/tiff/man/TIFFReadRawStrip.3tiff +++ /dev/null @@ -1,64 +0,0 @@ -.\" $Id: TIFFReadRawStrip.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadRawStrip 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFReadRawStrip \- return the undecoded contents of a strip of data from an -open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFReadRawStrip(TIFF *" tif ", tstrip_t " strip ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Read the contents of the specified strip into the (user supplied) data buffer. -Note that the value of -.I strip -is a ``raw strip number.'' That is, the caller must take into account whether -or not the data is organized in separate planes (\c -.IR PlanarConfiguration =2). -To read a full strip of data the data buffer should typically be at least as -large as the number returned by -.IR TIFFStripSize . -.SH "RETURN VALUES" -The actual number of bytes of data that were placed in -.I buf -is returned; -.IR TIFFReadEncodedStrip -returns \-1 if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadEncodedStrip (3TIFF), -.BR TIFFReadScanline (3TIFF), -.BR TIFFStripSize (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadRawTile.3tiff b/tiff/man/TIFFReadRawTile.3tiff deleted file mode 100755 index 3945dd9..0000000 --- a/tiff/man/TIFFReadRawTile.3tiff +++ /dev/null @@ -1,65 +0,0 @@ -.\" $Id: TIFFReadRawTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadRawTile 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFReadRawTile \- return an undecoded tile of data from an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFReadRawTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Read the contents of the specified tile into the (user supplied) data buffer. -Note that the value of -.I tile -is a ``raw tile number.'' That is, the caller must take into account whether -or not the data is organized in separate planes (\c -.IR PlanarConfiguration =2). -.I TIFFComputeTile -automatically does this when converting an (x,y,z,sample) coordinate quadruple -to a tile number. To read a full tile of data the data buffer should typically -be at least as large as the value returned by -.IR TIFFTileSize . -.SH "RETURN VALUES" -The actual number of bytes of data that were placed in -.I buf -is returned; -.IR TIFFReadEncodedTile -returns \-1 if an error was encountered. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadEncodedTile (3TIFF), -.BR TIFFReadTile (3TIFF), -.BR TIFFTileSize (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadScanline.3tiff b/tiff/man/TIFFReadScanline.3tiff deleted file mode 100755 index 7baf651..0000000 --- a/tiff/man/TIFFReadScanline.3tiff +++ /dev/null @@ -1,94 +0,0 @@ -.\" $Id: TIFFReadScanline.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadScanline 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFReadScanline \- read and decode a scanline of data from an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFReadScanline(TIFF *" tif ", tdata_t " buf ", uint32 " row ", tsample_t " sample ")" -.SH DESCRIPTION -Read the data for the specified row into the (user supplied) data buffer -.IR buf . -The data are returned decompressed and, in the native byte- and bit-ordering, -but are otherwise packed (see further below). The buffer must be large enough -to hold an entire scanline of data. Applications should call the routine -.IR TIFFScanlineSize -to find out the size (in bytes) of a scanline buffer. -The -.I row -parameter is always used by -.IR TIFFReadScanline ; -the -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.SH NOTES -The library attempts to hide bit- and byte-ordering differences between the -image and the native machine by converting data to the native machine order. -Bit reversal is done if the -.I FillOrder -tag is opposite to the native machine bit order. 16- and 32-bit samples are -automatically byte-swapped if the file was written with a byte order opposite -to the native machine byte order, -.PP -In C++ the -.I sample -parameter defaults to 0. -.SH "RETURN VALUES" -.IR TIFFReadScanline -returns \-1 if it detects an error; otherwise 1 is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Compression algorithm does not support random access" . -Data was requested in a non-sequential order from a file that uses a -compression algorithm and that has -.I RowsPerStrip -greater than one. -That is, data in the image is stored in a compressed form, and with multiple -rows packed into a strip. In this case, the library does not support random -access to the data. The data should either be accessed sequentially, or the -file should be converted so that each strip is made up of one row of data. -.SH BUGS -Reading subsampled YCbCR data does not work correctly because, for -.IR PlanarConfiguration =2 -the size of a scanline is not calculated on a per-sample basis, and for -.IR PlanarConfiguration =1 -the library does not unpack the block-interleaved samples; use the strip- and -tile-based interfaces to read these formats. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadEncodedStrip (3TIFF), -.BR TIFFReadRawStrip (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFReadTile.3tiff b/tiff/man/TIFFReadTile.3tiff deleted file mode 100755 index 4a9b20d..0000000 --- a/tiff/man/TIFFReadTile.3tiff +++ /dev/null @@ -1,84 +0,0 @@ -.\" $Id: TIFFReadTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFReadTile 3TIFF "December 16, 1991" "libtiff" -.SH NAME -TIFFReadTile \- read and decode a tile of data from an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFReadTile(TIFF *" tif ", tdata_t " buf ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")" -.SH DESCRIPTION -Return the data for the tile -.I containing -the specified coordinates. The data placed in -.I buf -are returned decompressed and, typically, in the native byte- and -bit-ordering, but are otherwise packed (see further below). The buffer must be -large enough to hold an entire tile of data. Applications should call the -routine -.IR TIFFTileSize -to find out the size (in bytes) of a tile buffer. The -.I x -and -.I y -parameters are always used by -.IR TIFFReadTile . -The -.I z -parameter is used if the image is deeper than 1 slice (\c -.IR ImageDepth >1). -The -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.SH NOTES -The library attempts to hide bit- and byte-ordering differences between the -image and the native machine by converting data to the native machine order. -Bit reversal is done if the -.I FillOrder -tag is opposite to the native machine bit order. 16- and 32-bit samples are -automatically byte-swapped if the file was written with a byte order opposite -to the native machine byte order, -.SH "RETURN VALUES" -.IR TIFFReadTile -returns \-1 if it detects an error; otherwise the number of bytes in the -decoded tile is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFCheckTile (3TIFF), -.BR TIFFComputeTile (3TIFF), -.BR TIFFOpen (3TIFF), -.BR TIFFReadEncodedTile (3TIFF), -.BR TIFFReadRawTile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFSetDirectory.3tiff b/tiff/man/TIFFSetDirectory.3tiff deleted file mode 100755 index 162d310..0000000 --- a/tiff/man/TIFFSetDirectory.3tiff +++ /dev/null @@ -1,79 +0,0 @@ -.\" $Id: TIFFSetDirectory.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSetDirectory 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFSetDirectory, TIFFSetSubDirectory \- set the current directory for an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFSetDirectory(TIFF *" tif ", tdir_t " dirnum ")" -.br -.BI "int TIFFSetSubDirectory(TIFF *" tif ", uint32 " diroff ")" -.SH DESCRIPTION -.I TIFFSetDirectory -changes the current directory and reads its contents with -.IR TIFFReadDirectory . -The parameter -.I dirnum -specifies the subfile/directory as an integer number, with the first directory -numbered zero. -.PP -.I TIFFSetSubDirectory -acts like -.IR TIFFSetDirectory , -except the directory is specified as a file offset instead of an index; this -is required for accessing subdirectories linked through a -.I SubIFD -tag. -.SH "RETURN VALUES" -On successful return 1 is returned. Otherwise, 0 is returned if -.I dirnum -or -.I diroff -specifies a non-existent directory, or if an error was encountered while -reading the directory's contents. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "%s: Error fetching directory count" . -An error was encountered while reading the ``directory count'' field. -.PP -.BR "%s: Error fetching directory link" . -An error was encountered while reading the ``link value'' that points to the -next directory in a file. -.SH "SEE ALSO" -.IR TIFFCurrentDirectory (3TIFF), -.IR TIFFOpen (3TIFF), -.IR TIFFReadDirectory (3TIFF), -.IR TIFFWriteDirectory (3TIFF), -.IR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFSetField.3tiff b/tiff/man/TIFFSetField.3tiff deleted file mode 100755 index 33e9471..0000000 --- a/tiff/man/TIFFSetField.3tiff +++ /dev/null @@ -1,217 +0,0 @@ -.\" $Id: TIFFSetField.3tiff,v 1.5 2010-05-06 02:54:46 olivier Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSetField 3TIFF "October 29, 2004" "libtiff" -.SH NAME -TIFFSetField, TIFFVSetField \- set the value(s) of a tag in a -.SM TIFF -file open for writing -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFSetField(TIFF *" tif ", ttag_t " tag ", " ... ")" -.sp -.B "#include " -.sp -.BI "int TIFFVSetField(TIFF *" tif ", ttag_t " tag ", va_list " ap ")" -.SH DESCRIPTION -.IR TIFFSetField -sets the value of a field -or pseudo-tag in the current directory associated with -the open -.SM TIFF -file -.IR tif . -(A -.I pseudo-tag -is a parameter that is used to control the operation of the -.SM TIFF -library but whose value is not read or written to the underlying file.) -To set the value of a field -the file must have been previously opened for writing with -.IR TIFFOpen (3TIFF); -pseudo-tags can be set whether the file was opened for reading -or writing. -The field is identified by -.IR tag , -one of the values defined in the include file -.B tiff.h -(see also the table below). -The actual value is specified using a variable argument list, -as prescribed by the -.IR stdarg (3) -interface (\c -or, on some machines, the -.IR varargs (3) -interface.) -.PP -.IR TIFFVSetField -is functionally equivalent to -.IR TIFFSetField -except that it takes a pointer to a variable -argument list. -.I TIFFVSetField -is useful for writing routines that are layered -on top of the functionality provided by -.IR TIFFSetField . -.PP -The tags understood by -.IR libtiff , -the number of parameter values, and the -expected types for the parameter values are shown below. -The data types are: -.I char* -is null-terminated string and corresponds to the -.SM ASCII -data type; -.I uint16 -is an unsigned 16-bit value; -.I uint32 -is an unsigned 32-bit value; -.I uint16* -is an array of unsigned 16-bit values. -.I void* -is an array of data values of unspecified type. - -Consult the -.SM TIFF -specification for information on the meaning of each tag. -.PP -.nf -.ta \w'TIFFTAG_CONSECUTIVEBADFAXLINES'u+2n +\w'Count'u+2n +\w'TIFFFaxFillFunc \(dg'u+2n -\fITag Name\fP \fICount\fP \fITypes\fP \fINotes\fP -.sp 5p -TIFFTAG_ARTIST 1 char* -TIFFTAG_BADFAXLINES 1 uint32 -TIFFTAG_BITSPERSAMPLE 1 uint16 \(dg -TIFFTAG_CLEANFAXDATA 1 uint16 -TIFFTAG_COLORMAP 3 uint16* 1< 0 -TIFFTAG_SAMPLEFORMAT 1 uint16 \(dg -TIFFTAG_SAMPLESPERPIXEL 1 uint16 \(dg value must be <= 4 -TIFFTAG_SMAXSAMPLEVALUE 1 double -TIFFTAG_SMINSAMPLEVALUE 1 double -TIFFTAG_SOFTWARE 1 char* -TIFFTAG_STONITS 1 double \(dg -TIFFTAG_SUBFILETYPE 1 uint32 -TIFFTAG_SUBIFD 2 uint16,uint32* count & offsets array -TIFFTAG_TARGETPRINTER 1 char* -TIFFTAG_THRESHHOLDING 1 uint16 -TIFFTAG_TILEDEPTH 1 uint32 \(dg -TIFFTAG_TILELENGTH 1 uint32 \(dg must be a multiple of 8 -TIFFTAG_TILEWIDTH 1 uint32 \(dg must be a multiple of 8 -TIFFTAG_TRANSFERFUNCTION 1 or 3\(dd uint16* 1<" -.sp -.BI "void TIFFWarning(const char *" module ", const char *" fmt ", " ... ")" -.sp -.B "#include " -.sp -.BI "typedef void (*TIFFWarningHandler)(const char *" module ", const char *" fmt ", va_list " ap ");" -.sp -.BI "TIFFWarningHandler TIFFSetWarningHandler(TIFFWarningHandler " handler ");" -.SH DESCRIPTION -.I TIFFWarning -invokes the library-wide warning handler function to (normally) write a -warning message to the -.BR stderr . -The -.I fmt -parameter is a -.IR printf (3S) -format string, and any number arguments can be supplied. The -.I module -parameter is interpreted as a string that, if non-zero, should be printed -before the message; it typically is used to identify the software module in -which a warning is detected. -.PP -Applications that desire to capture control in the event of a warning should -use -.IR TIFFSetWarningHandler -to override the default warning handler. -A -.SM NULL -(0) warning handler function may be installed to suppress error messages. -.SH "RETURN VALUES" -.IR TIFFSetWarningHandler -returns a reference to the previous error handling function. -.SH "SEE ALSO" -.BR TIFFError (3TIFF), -.BR libtiff (3TIFF), -.BR printf (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteDirectory.3tiff b/tiff/man/TIFFWriteDirectory.3tiff deleted file mode 100755 index b8de6bf..0000000 --- a/tiff/man/TIFFWriteDirectory.3tiff +++ /dev/null @@ -1,138 +0,0 @@ -.\" $Id: TIFFWriteDirectory.3tiff,v 1.3 2010-12-12 01:45:35 faxguy Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteDirectory 3TIFF "September 26, 2001" "libtiff" -.SH NAME -TIFFWriteDirectory, TIFFRewriteDirectory, TIFFCheckpointDirectory \- write the -current directory in an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFWriteDirectory(TIFF *" tif ")" -.br -.BI "int TIFFRewriteDirectory(TIFF *" tif ")" -.br -.BI "int TIFFCheckpointDirectory(TIFF *" tif ")" -.SH DESCRIPTION -.IR TIFFWriteDirectory -will write the contents of the current directory to the file and setup to -create a new subfile in the same file. Applications only need to call -.IR TIFFWriteDirectory -when writing multiple subfiles to a single -.SM TIFF -file. -.IR TIFFWriteDirectory -is automatically called by -.IR TIFFClose -and -.IR TIFFFlush -to write a modified directory if the file is open for writing. -.PP -The -.IR TIFFRewriteDirectory -function operates similarly to -.IR TIFFWriteDirectory, -but can be called with directories previously read or written that already -have an established location in the file. It will rewrite the directory, -but instead of place it at it's old location (as -.IR TIFFWriteDirectory -would) it will place them at the end of the file, correcting the pointer from -the preceding directory or file header to point to it's new location. This -is particularly important in cases where the size of the directory and -pointed to data has grown, so it won't fit in the space available at the -old location. -.PP -The -.IR TIFFCheckpointDirectory -writes the current state of the tiff directory into the file to make what -is currently in the file readable. Unlike -.IR TIFFWriteDirectory, -.IR TIFFCheckpointDirectory -does not free up the directory data structures in memory, so they can be -updated (as strips/tiles are written) and written again. Reading such -a partial file you will at worst get a tiff read error for the first -strip/tile encountered that is incomplete, but you will at least get -all the valid data in the file before that. When the file is complete, -just use -.IR TIFFWriteDirectory -as usual to finish it off cleanly. -.SH "RETURN VALUES" -1 is returned when the contents are successfully written to the file. -Otherwise, 0 is returned if an error was encountered when writing -the directory contents. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "Error post-encoding before directory write" . -Before writing the contents of the current directory, any pending data are -flushed. This message indicates that an error occurred while doing this. -.PP -.BR "Error flushing data before directory write" . -Before writing the contents of the current directory, any pending data are -flushed. This message indicates that an error occurred while doing this. -.PP -.BR "Cannot write directory, out of space" . -There was not enough space to allocate a temporary area for the directory that -was to be written. -.PP -.BR "Error writing directory count" . -A write error occurred when writing the count of fields in the directory. -.PP -.BR "Error writing directory contents" . -A write error occurred when writing the directory fields. -.PP -.BR "Error writing directory link" . -A write error occurred when writing the link to the next directory. -.PP -\fBError writing data for field "%s"\fP. -A write error occurred when writing indirect data for the specified field. -.PP -.BR "Error writing TIFF header" . -A write error occurred when re-writing header at the front of the file. -.PP -.BR "Error fetching directory count" . -A read error occurred when fetching the directory count field for -a previous directory. -This can occur when setting up a link to the directory that is being -written. -.PP -.BR "Error fetching directory link" . -A read error occurred when fetching the directory link field for -a previous directory. -This can occur when setting up a link to the directory that is being -written. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFError (3TIFF), -.BR TIFFReadDirectory (3TIFF), -.BR TIFFSetDirectory (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteEncodedStrip.3tiff b/tiff/man/TIFFWriteEncodedStrip.3tiff deleted file mode 100755 index 4130634..0000000 --- a/tiff/man/TIFFWriteEncodedStrip.3tiff +++ /dev/null @@ -1,102 +0,0 @@ -.\" $Id: TIFFWriteEncodedStrip.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteEncodedStrip 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFWritedEncodedStrip \- compress and write a strip of data to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFWriteEncodedStrip(TIFF *" tif ", tstrip_t " strip ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Compress -.I size -bytes of raw data from -.I buf -and write the result to the specified strip; replacing any previously written -data. Note that the value of -.I strip -is a ``raw strip number.'' That is, the caller must take into account whether -or not the data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.SH NOTES -The library writes encoded data using the native machine byte order. Correctly -implemented -.SM TIFF -readers are expected to do any necessary byte-swapping to correctly process -image data with BitsPerSample greater than 8. -.PP -The strip number must be valid according to the current settings of the -.I ImageLength -and -.I RowsPerStrip -tags. -An image may be dynamically grown by increasing the value of -.I ImageLength -prior to each call to -.IR TIFFWriteEncodedStrip . -.SH "RETURN VALUES" -\-1 is returned if an error was encountered. Otherwise, the value of -.IR size -is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -\fB%s: File not open for writing\fP. The file was opened for reading, not -writing. -.PP -\fBCan not write scanlines to a tiled image\fP. The image is assumed to be -organized in tiles because the -.I TileWidth -and -.I TileLength -tags have been set with -.IR TIFFSetField (3TIFF). -.PP -\fB%s: Must set "ImageWidth" before writing data\fP. -The image's width has not be set before the first write. See -.IR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: Must set "PlanarConfiguration" before writing data\fP. -The organization of data has not be defined before the first write. See -.IR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: No space for strip arrays"\fP. -There was not enough space for the arrays that hold strip offsets and byte -counts. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteScanline (3TIFF), -.BR TIFFWriteRawStrip (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteEncodedTile.3tiff b/tiff/man/TIFFWriteEncodedTile.3tiff deleted file mode 100755 index 4bb471f..0000000 --- a/tiff/man/TIFFWriteEncodedTile.3tiff +++ /dev/null @@ -1,96 +0,0 @@ -.\" $Id: TIFFWriteEncodedTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteEncodedTile 3TIFF "December 16, 1991" "libtiff" -.SH NAME -TIFFWritedEncodedTile \- compress and write a tile of data to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFWriteEncodedTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Compress -.I size -bytes of raw data from -.I buf -and -.B append -the result to the end of the specified tile. Note that the value of -.I tile -is a ``raw tile number.'' That is, the caller must take into account whether -or not the data are organized in separate places (\c -.IR PlanarConfiguration =2). -.IR TIFFComputeTile -automatically does this when converting an (x,y,z,sample) coordinate quadruple -to a tile number. -.SH NOTES -The library writes encoded data using the native machine byte order. Correctly -implemented -.SM TIFF -readers are expected to do any necessary byte-swapping to correctly process -image data with BitsPerSample greater than 8. -.SH "RETURN VALUES" -\-1 is returned if an error was encountered. Otherwise, the value of -.IR size -is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.PP -\fB%s: File not open for writing\fP. -The file was opened for reading, not writing. -.PP -\fBCan not write tiles to a stripped image\fP. -The image is assumed to be organized in strips because neither of the -.I TileWidth -or -.I TileLength -tags have been set with -.BR TIFFSetField (3TIFF). -.PP -\fB%s: Must set "ImageWidth" before writing data\fP. The image's width has not -be set before the first write. See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: Must set "PlanarConfiguration" before writing data\fP. The organization -of data has not be defined before the first write. See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: No space for tile arrays"\fP. -There was not enough space for the arrays that hold tile offsets and byte -counts. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteTile (3TIFF), -.BR TIFFWriteRawTile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteRawStrip.3tiff b/tiff/man/TIFFWriteRawStrip.3tiff deleted file mode 100755 index 0fed3aa..0000000 --- a/tiff/man/TIFFWriteRawStrip.3tiff +++ /dev/null @@ -1,96 +0,0 @@ -.\" $Id: TIFFWriteRawStrip.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteRawstrip 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFWriteRawStrip \- write a strip of raw data to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFWriteRawStrip(TIFF *" tif ", tstrip_t " strip ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Append -.I size -bytes of raw data to the specified strip. -.SH NOTES -The strip number must be valid according to the current settings of the -.I ImageLength -and -.I RowsPerStrip -tags. -An image may be dynamically grown by increasing the value of -.I ImageLength -prior to each call to -.IR TIFFWriteRawStrip . -.SH "RETURN VALUES" -\-1 is returned if an error occurred. -Otherwise, the value of -.IR size -is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.PP -\fB%s: File not open for writing\fP. -The file was opened for reading, not writing. -.PP -\fBCan not write scanlines to a tiled image\fP. The image is assumed to be -organized in tiles because the -.I TileWidth -and -.I TileLength -tags have been set with -.BR TIFFSetField (3TIFF). -.PP -\fB%s: Must set "ImageWidth" before writing data\fP. -The image's width has not be set before the first write. -See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: Must set "PlanarConfiguration" before writing data\fP. -The organization of data has not be defined before the first write. -See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: No space for strip arrays"\fP. -There was not enough space for the arrays that hold strip -offsets and byte counts. -.PP -\fB%s: Strip %d out of range, max %d\fP. -The specified strip is not a valid strip according to the -currently specified image dimensions. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteEncodedStrip (3TIFF), -.BR TIFFWriteScanline (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteRawTile.3tiff b/tiff/man/TIFFWriteRawTile.3tiff deleted file mode 100755 index d422e58..0000000 --- a/tiff/man/TIFFWriteRawTile.3tiff +++ /dev/null @@ -1,84 +0,0 @@ -.\" $Id: TIFFWriteRawTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteRawtile 3TIFF "December 16, 1991" "libtiff" -.SH NAME -TIFFWriteRawTile \- write a tile of raw data to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFWriteRawTile(TIFF *" tif ", ttile_t " tile ", tdata_t " buf ", tsize_t " size ")" -.SH DESCRIPTION -Append -.I size -bytes of raw data to the specified tile. -.SH "RETURN VALUES" -\-1 is returned if an error occurred. Otherwise, the value of -.IR size -is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.PP -\fB%s: File not open for writing\fP. -The file was opened for reading, not writing. -.PP -\fBCan not write tiles to a stripped image\fP. -The image is assumed to be organized in strips because neither of the -.I TileWidth -or -.I TileLength -tags have been set with -.BR TIFFSetField (3TIFF). -.PP -\fB%s: Must set "ImageWidth" before writing data\fP. -The image's width has not be set before the first write. -See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: Must set "PlanarConfiguration" before writing data\fP. The organization -of data has not be defined before the first write. See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: No space for tile arrays"\fP. -There was not enough space for the arrays that hold tile offsets and byte -counts. -.PP -\fB%s: Specified tile %d out of range, max %d\fP. -The specified tile is not valid according to the currently specified image -dimensions. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteEncodedTile (3TIFF), -.BR TIFFWriteScanline (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteScanline.3tiff b/tiff/man/TIFFWriteScanline.3tiff deleted file mode 100755 index 0dd35f5..0000000 --- a/tiff/man/TIFFWriteScanline.3tiff +++ /dev/null @@ -1,154 +0,0 @@ -.\" $Id: TIFFWriteScanline.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteScanline 3TIFF "December 16, 1991" "libtiff" -.SH NAME -TIFFWriteScanline \- write a scanline to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFWriteScanline(TIFF *" tif ", tdata_t " buf ", uint32 " row ", tsample_t " sample ")" -.SH DESCRIPTION -Write data to a file at the specified row. The -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -The data are assumed to be uncompressed and in the native bit- and byte-order -of the host machine. The data written to the file is compressed according to -the compression scheme of the current -.SM TIFF -directory (see further below). If the current scanline is past the end of the -current subfile, the -.I ImageLength -field is automatically increased to include the scanline (except -for -.IR PlanarConfiguration =2, -where the -.I ImageLength -cannot be changed once the first data are written). If the -.I ImageLength -is increased, the -.I StripOffsets -and -.I StripByteCounts -fields are similarly enlarged to reflect data written past the previous end of -image. -.SH NOTES -The library writes encoded data using the native machine byte order. Correctly -implemented -.SM TIFF -readers are expected to do any necessary byte-swapping to correctly process -image data with BitsPerSample greater than 8. The library attempts to hide -bit-ordering differences between the image and the native machine by -converting data from the native machine order. -.PP -In C++ the -.I sample -parameter defaults to 0. -.PP -Once data are written to a file for the current directory, the values of -certain tags may not be altered; see -.IR TIFFSetField (3TIFF) -for more information. -.PP -It is not possible to write scanlines to a file that uses a tiled -organization. The routine -.IR TIFFIsTiled -can be used to determine if the file is organized as tiles or strips. -.SH "RETURN VALUES" -.IR TIFFWriteScanline -returns \-1 if it immediately detects an error and 1 for a successful write. -.SH DIAGNOSTICS -All error messages are directed to the -.IR TIFFError (3TIFF) -routine. -.PP -.BR "%s: File not open for writing . -The file was opened for reading, not writing. -.PP -.BR "Can not write scanlines to a tiled image" . -An attempt was made to write a scanline to a tiled image. The image is assumed -to be organized in tiles because the -.I TileWidth -and -.I TileLength -tags have been set with -.IR TIFFSetField (3TIFF). -.PP -.BR "Compression algorithm does not support random access" . -Data was written in a non-sequential order to a file that uses a compression -algorithm and that has -.I RowsPerStrip -greater than one. That is, data in the image is to be stored in a compressed -form, and with multiple rows packed into a strip. In this case, the library -does not support random access to the data. The data should either be written -as entire strips, sequentially by rows, or the value of -.I RowsPerStrip -should be set to one. -.PP -\fB%s: Must set "ImageWidth" before writing data\fP. -The image's width has not be set before the first write. -See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fB%s: Must set "PlanarConfiguration" before writing data\fP. -The organization of data has not be defined before the first write. -See -.BR TIFFSetField (3TIFF) -for information on how to do this. -.PP -\fBCan not change "ImageLength" when using separate planes\fP. Separate image -planes are being used (\c -.IR PlanarConfiguration =2), -but the number of rows has not been specified before the first write. The -library supports the dynamic growth of an image only when data are organized -in a contiguous manner (\c -.IR PlanarConfiguration =1). -.PP -.BR "%d: Sample out of range, max %d" . -The -.I sample -parameter was greater than the value of the SamplesPerPixel tag. -.PP -.BR "%s: No space for strip arrays . -There was not enough space for the arrays that hold strip offsets and byte -counts. -.SH BUGS -Writing subsampled YCbCR data does not work correctly because, for -.IR PlanarConfiguration =2 -the size of a scanline is not calculated on a per-sample basis, and for -.IR PlanarConfiguration =1 -the library does not pack the block-interleaved samples. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFWriteEncodedStrip (3TIFF), -.BR TIFFWriteRawStrip (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFWriteTile.3tiff b/tiff/man/TIFFWriteTile.3tiff deleted file mode 100755 index 08250f7..0000000 --- a/tiff/man/TIFFWriteTile.3tiff +++ /dev/null @@ -1,77 +0,0 @@ -.\" $Id: TIFFWriteTile.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFWriteTile 3TIFF "November 29, 1999" "libtiff" -.SH NAME -TIFFWriteTile \- encode and write a tile of data to an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFWriteTile(TIFF *" tif ", tdata_t " buf ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")" -.SH DESCRIPTION -Write the data for the tile -.I containing -the specified coordinates. The data in -.I buf -are is (potentially) compressed, and written to the indicated file, normally -being appended to the end of the file. The buffer must be contain an entire -tile of data. Applications should call the routine -.IR TIFFTileSize -to find out the size (in bytes) of a tile buffer. The -.I x -and -.I y -parameters are always used by -.IR TIFFWriteTile . -The -.I z -parameter is used if the image is deeper than 1 slice (\c -.IR ImageDepth >1). -The -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.SH "RETURN VALUES" -.IR TIFFWriteTile -returns \-1 if it detects an error; otherwise the number of bytes in the tile -is returned. -.SH DIAGNOSTICS -All error messages are directed to the -.BR TIFFError (3TIFF) -routine. -.SH "SEE ALSO" -.BR TIFFCheckTile (3TIFF), -.BR TIFFComputeTile (3TIFF), -.BR TIFFOpen (3TIFF), -.BR TIFFReadTile (3TIFF), -.BR TIFFWriteScanline (3TIFF), -.BR TIFFWriteEncodedTile (3TIFF), -.BR TIFFWriteRawTile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFbuffer.3tiff b/tiff/man/TIFFbuffer.3tiff deleted file mode 100755 index a4446cd..0000000 --- a/tiff/man/TIFFbuffer.3tiff +++ /dev/null @@ -1,77 +0,0 @@ -.\" $Id: TIFFbuffer.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1995 Sam Leffler -.\" Copyright (c) 1995 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFBUFFER 3TIFF "November 1, 2005" "libtiff" -.SH NAME -TIFFReadBufferSetup, TIFFWriteBufferSetup \- I/O buffering control routines -.SH SYNOPSIS -.nf -.B "#include " -.sp -.BI "int TIFFReadBufferSetup(TIFF *" tif ", tdata_t " buffer ", tsize_t " size ");" -.BI "int TIFFWriteBufferSetup(TIFF *" tif ", tdata_t " buffer ", tsize_t " size ");" -.fi -.SH DESCRIPTION -The following routines are provided for client-control of the I/O buffers used -by the library. Applications need never use these routines; they are provided -only for ``intelligent clients'' that wish to optimize memory usage and/or -eliminate potential copy operations that can occur when working with images -that have data stored without compression. -.PP -.I TIFFReadBufferSetup -sets up the data buffer used to read raw (encoded) data from a file. If the -specified pointer is -.SM NULL -(zero), then a buffer of the appropriate size is allocated. Otherwise the -caller must guarantee that the buffer is large enough to hold any individual -strip of raw data. -.I TIFFReadBufferSetup -returns a non-zero value if the setup was successful and zero otherwise. -.PP -.I TIFFWriteBufferSetup -sets up the data buffer used to write raw (encoded) data to a file. If the -specified -.I size -is \-1 then the buffer size is selected to hold a complete tile or strip, or -at least 8 kilobytes, whichever is greater. If the specified -.I buffer -is -.SM NULL -(zero), then a buffer of the appropriate size is dynamically allocated. -.I TIFFWriteBufferSetup -returns a non-zero value if the setup was successful and zero otherwise. -.SH DIAGNOSTICS -.BR "%s: No space for data buffer at scanline %ld" . -.I TIFFReadBufferSetup -was unable to dynamically allocate space for a data buffer. -.PP -.BR "%s: No space for output buffer" . -.I TIFFWriteBufferSetup -was unable to dynamically allocate space for a data buffer. -.SH "SEE ALSO" -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFcodec.3tiff b/tiff/man/TIFFcodec.3tiff deleted file mode 100755 index 78a0f02..0000000 --- a/tiff/man/TIFFcodec.3tiff +++ /dev/null @@ -1,82 +0,0 @@ -.\" $Id: TIFFcodec.3tiff,v 1.3 2011-08-02 14:09:43 bfriesen Exp $ -.\" -.\" Copyright (c) 1995 Sam Leffler -.\" Copyright (c) 1995 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH CODEC 3TIFF "October 29, 2004" "libtiff" -.SH NAME -TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, TIFFIsCODECConfigured -\- codec-related utility routines -.SH SYNOPSIS -.B "#include " -.sp -.BI "const TIFFCodec* TIFFFindCODEC(uint16 " scheme ");" -.br -.BI "TIFFCodec* TIFFRegisterCODEC(uint16 " scheme ", const char *" method ", TIFFInitMethod " init ");" -.br -.BI "void TIFFUnRegisterCODEC(TIFFCodec *" codec ");" -.br -.BI "int TIFFIsCODECConfigured(uint16 " scheme ");" -.SH DESCRIPTION -.I libtiff -supports a variety of compression schemes implemented by software -.IR codecs . -Each codec adheres to a modular interface that provides for -the decoding and encoding of image data; as well as some other -methods for initialization, setup, cleanup, and the control -of default strip and tile sizes. -Codecs are identified by the associated value of the -.SM TIFF -.I Compression -tag; e.g. 5 for -.SM LZW -compression. -.PP -The -.I TIFFRegisterCODEC -routine can be used to -augment or override the set of codecs available to an application. -If the specified -.I scheme -already has a registered codec then it is -.I overridden -and any images with data encoded with this -compression scheme will be decoded using the supplied codec. -.PP -.I TIFFIsCODECConfigured -returns 1 if the codec is configured and working. Otherwise 0 will be returned. -.SH DIAGNOSTICS -.BR "No space to register compression scheme %s" . -.I TIFFRegisterCODEC -was unable to allocate memory for the data structures needed -to register a codec. -.PP -.BR "Cannot remove compression scheme %s; not registered" . -.I TIFFUnRegisterCODEC -did not locate the specified codec in the table of registered -compression schemes. -.SH "SEE ALSO" -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFcolor.3tiff b/tiff/man/TIFFcolor.3tiff deleted file mode 100755 index e5d2727..0000000 --- a/tiff/man/TIFFcolor.3tiff +++ /dev/null @@ -1,268 +0,0 @@ -.\" $Id: TIFFcolor.3tiff,v 1.4 2009-11-30 12:22:26 fwarmerdam Exp $ -.\" -.\" Copyright (c) 2003, Andrey Kiselev -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH COLOR 3TIFF "December 21, 2003" "libtiff" -.SH NAME -TIFFYCbCrToRGBInit, TIFFYCbCrtoRGB, TIFFCIELabToRGBInit, TIFFCIELabToXYZ, -TIFFXYZToRGB \- color conversion routines. -.SH SYNOPSIS -.B "#include " -.sp -.BI "int TIFFYCbCrToRGBInit(TIFFYCbCrToRGB *" ycbcr ", float *" luma ", float *"refBlackWhite" );" -.br -.BI "void TIFFYCbCrtoRGB(TIFFYCbCrToRGB *" ycbcr ", uint32 " Y ", int32 " Cb ", int32 " Cr ", uint32 *" R ", uint32 *" G ", uint32 *" B " );" -.sp -.BI "int TIFFCIELabToRGBInit(TIFFCIELabToRGB *" cielab ", const TIFFDisplay *" display ", float *" refWhite ");" -.br -.BI "void TIFFCIELabToXYZ(TIFFCIELabToRGB *" cielab ", uint32 " L ", int32 " a ", int32 " b ", float *" X ", float *" Y ", float *" Z ");" -.br -.BI "void TIFFXYZToRGB(TIFFCIELabToRGB *" cielab ", float " X ", float " Y ", float " Z" , uint32 *" R ", uint32 *" G ", uint32 *" B ");" -.SH DESCRIPTION -TIFF supports several color spaces for images stored in that format. There is -usually a problem of application to handle the data properly and convert -between different colorspaces for displaying and printing purposes. To -simplify this task libtiff implements several color conversion routines -itself. In particular, these routines used in -.B TIFFRGBAImage(3TIFF) -interface. -.PP -.B TIFFYCbCrToRGBInit() -used to initialize -.I YCbCr -to -.I RGB -conversion state. Allocating and freeing of the -.I ycbcr -structure belongs to programmer. -.I TIFFYCbCrToRGB -defined in -.B tiffio.h -as -.PP -.RS -.nf -typedef struct { /* YCbCr->RGB support */ - TIFFRGBValue* clamptab; /* range clamping table */ - int* Cr_r_tab; - int* Cb_b_tab; - int32* Cr_g_tab; - int32* Cb_g_tab; - int32* Y_tab; -} TIFFYCbCrToRGB; -.fi -.RE -.PP -.I luma -is a float array of three values representing proportions of the red, green -and blue in luminance, Y (see section 21 of the TIFF 6.0 specification, where -the YCbCr images discussed). -.I TIFFTAG_YCBCRCOEFFICIENTS -holds that values in TIFF file. -.I refBlackWhite -is a float array of 6 values which specifies a pair of headroom and footroom -image data values (codes) for each image component (see section 20 of the -TIFF 6.0 specification where the colorinmetry fields discussed). -.I TIFFTAG_REFERENCEBLACKWHITE -is responsible for storing these values in TIFF file. Following code snippet -should helps to understand the the technique: -.PP -.RS -.nf -float *luma, *refBlackWhite; -uint16 hs, vs; - -/* Initialize structures */ -ycbcr = (TIFFYCbCrToRGB*) - _TIFFmalloc(TIFFroundup(sizeof(TIFFYCbCrToRGB), sizeof(long)) - + 4*256*sizeof(TIFFRGBValue) - + 2*256*sizeof(int) - + 3*256*sizeof(int32)); -if (ycbcr == NULL) { - TIFFError("YCbCr->RGB", - "No space for YCbCr->RGB conversion state"); - exit(0); -} - -TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRCOEFFICIENTS, &luma); -TIFFGetFieldDefaulted(tif, TIFFTAG_REFERENCEBLACKWHITE, &refBlackWhite); -if (TIFFYCbCrToRGBInit(ycbcr, luma, refBlackWhite) < 0) - exit(0); - -/* Start conversion */ -uint32 r, g, b; -uint32 Y; -int32 Cb, Cr; - -for each pixel in image - TIFFYCbCrtoRGB(img->ycbcr, Y, Cb, Cr, &r, &g, &b); - -/* Free state structure */ -_TIFFfree(ycbcr); -.fi -.RE -.PP - -.PP -.B TIFFCIELabToRGBInit() -initializes the -.I CIE L*a*b* 1976 -to -.I RGB -conversion state. -.B TIFFCIELabToRGB -defined as -.PP -.RS -.nf -#define CIELABTORGB_TABLE_RANGE 1500 - -typedef struct { /* CIE Lab 1976->RGB support */ - int range; /* Size of conversion table */ - float rstep, gstep, bstep; - float X0, Y0, Z0; /* Reference white point */ - TIFFDisplay display; - float Yr2r[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yr to r */ - float Yg2g[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yg to g */ - float Yb2b[CIELABTORGB_TABLE_RANGE + 1]; /* Conversion of Yb to b */ -} TIFFCIELabToRGB; -.fi -.RE -.PP -.I display -is a display device description, declared as -.PP -.RS -.nf -typedef struct { - float d_mat[3][3]; /* XYZ -> luminance matrix */ - float d_YCR; /* Light o/p for reference white */ - float d_YCG; - float d_YCB; - uint32 d_Vrwr; /* Pixel values for ref. white */ - uint32 d_Vrwg; - uint32 d_Vrwb; - float d_Y0R; /* Residual light for black pixel */ - float d_Y0G; - float d_Y0B; - float d_gammaR; /* Gamma values for the three guns */ - float d_gammaG; - float d_gammaB; -} TIFFDisplay; -.fi -.RE -.PP -For example, the one can use sRGB device, which has the following parameters: -.PP -.RS -.nf -TIFFDisplay display_sRGB = { - { /* XYZ -> luminance matrix */ - { 3.2410F, -1.5374F, -0.4986F }, - { -0.9692F, 1.8760F, 0.0416F }, - { 0.0556F, -0.2040F, 1.0570F } - }, - 100.0F, 100.0F, 100.0F, /* Light o/p for reference white */ - 255, 255, 255, /* Pixel values for ref. white */ - 1.0F, 1.0F, 1.0F, /* Residual light o/p for black pixel */ - 2.4F, 2.4F, 2.4F, /* Gamma values for the three guns */ -}; -.fi -.RE -.PP -.I refWhite -is a color temperature of the reference white. The -.I TIFFTAG_WHITEPOINT -contains the chromaticity of the white point of the image from where the -reference white can be calculated using following formulae: -.PP -.RS -refWhite_Y = 100.0 -.br -refWhite_X = whitePoint_x / whitePoint_y * refWhite_Y -.br -refWhite_Z = (1.0 - whitePoint_x - whitePoint_y) / whitePoint_y * refWhite_X -.br -.RE -.PP -The conversion itself performed in two steps: at the first one we will convert -.I CIE L*a*b* 1976 -to -.I CIE XYZ -using -.B TIFFCIELabToXYZ() -routine, and at the second step we will convert -.I CIE XYZ -to -.I RGB -using -.B TIFFXYZToRGB(). -Look at the code sample below: -.PP -.RS -.nf -float *whitePoint; -float refWhite[3]; - -/* Initialize structures */ -img->cielab = (TIFFCIELabToRGB *) - _TIFFmalloc(sizeof(TIFFCIELabToRGB)); -if (!cielab) { - TIFFError("CIE L*a*b*->RGB", - "No space for CIE L*a*b*->RGB conversion state."); - exit(0); -} - -TIFFGetFieldDefaulted(tif, TIFFTAG_WHITEPOINT, &whitePoint); -refWhite[1] = 100.0F; -refWhite[0] = whitePoint[0] / whitePoint[1] * refWhite[1]; -refWhite[2] = (1.0F - whitePoint[0] - whitePoint[1]) - / whitePoint[1] * refWhite[1]; -if (TIFFCIELabToRGBInit(cielab, &display_sRGB, refWhite) < 0) { - TIFFError("CIE L*a*b*->RGB", - "Failed to initialize CIE L*a*b*->RGB conversion state."); - _TIFFfree(cielab); - exit(0); -} - -/* Now we can start to convert */ -uint32 r, g, b; -uint32 L; -int32 a, b; -float X, Y, Z; - -for each pixel in image - TIFFCIELabToXYZ(cielab, L, a, b, &X, &Y, &Z); - TIFFXYZToRGB(cielab, X, Y, Z, &r, &g, &b); - -/* Don't forget to free the state structure */ -_TIFFfree(cielab); -.fi -.RE -.PP -.SH "SEE ALSO" -.BR TIFFRGBAImage (3TIFF) -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFmemory.3tiff b/tiff/man/TIFFmemory.3tiff deleted file mode 100755 index 55f446b..0000000 --- a/tiff/man/TIFFmemory.3tiff +++ /dev/null @@ -1,90 +0,0 @@ -.\" $Id: TIFFmemory.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1995 Sam Leffler -.\" Copyright (c) 1995 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH MEMORY 3TIFF "October 15, 1995" "libtiff" -.SH NAME -_TIFFmalloc, \c -_TIFFrealloc, \c -_TIFFfree, \c -_TIFFmemset, \c -_TIFFmemcpy, \c -_TIFFmemcmp, \c -\- memory management-related functions for use with -.SM TIFF -files -.SH SYNOPSIS -.B "#include " -.sp -.BI "tdata_t _TIFFmalloc(tsize_t " size ");" -.br -.BI "tdata_t _TIFFrealloc(tdata_t " buffer ", tsize_t " size ");" -.br -.BI "void _TIFFfree(tdata_t " buffer ");" -.br -.BI "void _TIFFmemset(tdata_t " s ", int " c ", tsize_t " n ");" -.br -.BI "void _TIFFmemcpy(tdata_t " dest ", const tdata_t " src ", tsize_t " n ");" -.br -.BI "int _TIFFmemcmp(const tdata_t " s1 ", const tdata_t "s2 ", tsize_t " n ");" -.SH DESCRIPTION -These routines are provided for writing portable software that uses -.IR libtiff ; -they hide any memory-management related issues, such as dealing with segmented -architectures found on 16-bit machines. -.PP -.I _TIFFmalloc -and -.I _TIFFrealloc -are used to dynamically allocate and reallocate memory used by -.IR libtiff ; -such as memory passed into the I/O routines. Memory allocated through these -interfaces is released back to the system using the -.I _TIFFfree -routine. -.PP -Memory allocated through one of the above interfaces can be set to a known -value using -.IR _TIFFmemset , -copied to another memory location using -.IR _TIFFmemcpy , -or compared for equality using -.IR _TIFFmemcmp . -These routines conform to the equivalent -.SM ANSI -C routines: -.IR memset , -.IR memcpy , -and -.IR memcmp , -repsectively. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.BR malloc (3), -.BR memory (3), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFquery.3tiff b/tiff/man/TIFFquery.3tiff deleted file mode 100755 index 8bddc88..0000000 --- a/tiff/man/TIFFquery.3tiff +++ /dev/null @@ -1,142 +0,0 @@ -.\" $Id: TIFFquery.3tiff,v 1.1 2004-11-11 14:39:16 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH QUERY 3TIFF "October 29, 2004" "libtiff" -.SH NAME -TIFFCurrentRow, -TIFFCurrentStrip, -TIFFCurrentTile, -TIFFCurrentDirectory, -TIFFLastDirectory, -TIFFFileno, -TIFFFileName, -TIFFGetMode, -TIFFIsTiled, -TIFFIsByteSwapped, -TIFFIsUpSampled, -TIFFIsMSB2LSB, -TIFFGetVersion -\- query routines -.SH SYNOPSIS -.B "#include " -.sp -.BI "uint32 TIFFCurrentRow(TIFF* " tif ")" -.br -.BI "tstrip_t TIFFCurrentStrip(TIFF* " tif ")" -.br -.BI "ttile_t TIFFCurrentTile(TIFF* " tif ")" -.br -.BI "tdir_t TIFFCurrentDirectory(TIFF* " tif ")" -.br -.BI "int TIFFLastDirectory(TIFF* " tif ")" -.br -.BI "int TIFFFileno(TIFF* " tif ")" -.br -.BI "char* TIFFFileName(TIFF* " tif ")" -.br -.BI "int TIFFGetMode(TIFF* " tif ")" -.br -.BI "int TIFFIsTiled(TIFF* " tif ")" -.br -.BI "int TIFFIsByteSwapped(TIFF* " tif ")" -.br -.BI "int TIFFIsUpSampled(TIFF* " tif ")" -.br -.BI "int TIFFIsMSB2LSB(TIFF* " tif ")" -.br -.BI "const char* TIFFGetVersion(void)" -.SH DESCRIPTION -The following routines return status information about an open -.SM TIFF -file. -.PP -.IR TIFFCurrentDirectory -returns the index of the current directory (directories are numbered starting -at 0). This number is suitable for use with the -.IR TIFFSetDirectory -routine. -.PP -.IR TIFFLastDirectory -returns a non-zero value if the current directory is the last directory in the -file; otherwise zero is returned. -.PP -.IR TIFFCurrentRow , -.IR TIFFCurrentStrip , -and -.IR TIFFCurrentTile , -return the current row, strip, and tile, respectively, that is being read or -written. These values are updated each time a read or write is done. -.PP -.IR TIFFFileno -returns the underlying file descriptor used to access the -.SM TIFF -image in the filesystem. -.PP -.IR TIFFFileName -returns the pathname argument passed to -.IR TIFFOpen -or -.IR TIFFFdOpen . -.PP -.IR TIFFGetMode -returns the mode with which the underlying file was opened. On -.SM UNIX -systems, this is the value passed to the -.IR open (2) -system call. -.PP -.IR TIFFIsTiled -returns a non-zero value if the image data has a tiled organization. Zero is -returned if the image data is organized in strips. -.PP -.IR TIFFIsByteSwapped -returns a non-zero value if the image data was in a different byte-order than -the host machine. Zero is returned if the TIFF file and local host byte-orders -are the same. Note that TIFFReadTile(), TIFFReadStrip() and -TIFFReadScanline() functions already normally perform byte swapping to local -host order if needed. -.PP -.I TIFFIsUpSampled -returns a non-zero value if image data returned through the read interface -routines is being up-sampled. This can be useful to applications that want to -calculate I/O buffer sizes to reflect this usage (though the usual strip and -tile size routines already do this). -.PP -.I TIFFIsMSB2LSB -returns a non-zero value if the image data is being returned with bit 0 as the -most significant bit. -.PP -.IR TIFFGetVersion -returns an -.SM ASCII -string that has a version stamp for the -.SM TIFF -library software. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.IR libtiff (3TIFF), -.IR TIFFOpen (3TIFF), -.IR TIFFFdOpen (3TIFF) diff --git a/tiff/man/TIFFsize.3tiff b/tiff/man/TIFFsize.3tiff deleted file mode 100755 index 6de9084..0000000 --- a/tiff/man/TIFFsize.3tiff +++ /dev/null @@ -1,59 +0,0 @@ -.\" $Id: TIFFsize.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSIZE 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFScanlineSize, TIFFRasterScanlineSize, -\- return the size of various items associated with an open -.SM TIFF -file -.SH SYNOPSIS -.B "#include " -.sp -.BI "tsize_t TIFFRasterScanlineSize(TIFF *" tif ")" -.br -.BI "tsize_t TIFFScanlineSize(TIFF *" tif ")" -.SH DESCRIPTION -.I TIFFScanlineSize -returns the size in bytes of a row of data as it would be returned in a call -to -.IR TIFFReadScanline , -or as it would be expected in a call to -.IR TIFFWriteScanline . -.PP -.I TIFFRasterScanlineSize -returns the size in bytes of a complete decoded and packed raster scanline. -Note that this value may be different from the value returned by -.I TIFFScanlineSize -if data is stored as separate planes. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.BR TIFFOpen (3TIFF), -.BR TIFFReadScanline (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFstrip.3tiff b/tiff/man/TIFFstrip.3tiff deleted file mode 100755 index bb9658e..0000000 --- a/tiff/man/TIFFstrip.3tiff +++ /dev/null @@ -1,99 +0,0 @@ -.\" $Id: TIFFstrip.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1992-1997 Sam Leffler -.\" Copyright (c) 1992-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSTRIP 3TIFF "October 15, 1995" "libtiff" -.SH NAME -TIFFDefaultStripSize, TIFFStripSize, TIFFVStripSize, TIFFRawStripSize, -TIFFComputeStrip, TIFFNumberOfStrips \- strip-related utility routines -.SH SYNOPSIS -.B "#include " -.sp -.BI "uint32 TIFFDefaultStripSize(TIFF *" tif ", uint32 " estimate ")" -.br -.BI "tsize_t TIFFStripSize(TIFF *" tif ")" -.br -.BI "tsize_t TIFFVStripSize(TIFF *" tif ", uint32 " nrows ")" -.br -.BI "tsize_t TIFFRawStripSize(TIFF *" tif ", tstrip_t " strip ")" -.br -.BI "tstrip_t TIFFComputeStrip(TIFF *" tif ", uint32 " row ", tsample_t " sample ")" -.br -.BI "tstrip_t TIFFNumberOfStrips(TIFF *" tif ")" -.SH DESCRIPTION -.I TIFFDefaultStripSize -returns the number of rows for a reasonable-sized strip according to the -current settings of the -.IR ImageWidth , -.IR BitsPerSample , -.IR SamplesPerPixel , -tags and any compression-specific requirements. If the -.I estimate -parameter, if non-zero, then it is taken as an estimate of the desired strip -size and adjusted according to any compression-specific requirements. The -value returned by this function is typically used to define the -.I RowsPerStrip -tag. In lieu of any unusual requirements -.I TIFFDefaultStripSize -tries to create strips that have approximately -8 kilobytes of uncompressed data. -.PP -.IR TIFFStripSize -returns the equivalent size for a strip of data as it would be returned in a -call to -.IR TIFFReadEncodedStrip -or as it would be expected in a call to -.IR TIFFWriteEncodedStrip . -.PP -.I TIFFVStripSize -returns the number of bytes in a strip with -.I nrows -rows of data. -.PP -.I TIFFRawStripSize -returns the number of bytes in a raw strip (i.e. not decoded). -.PP -.IR TIFFComputeStrip -returns the strip that contains the specified coordinates. A valid strip is -always returned; out-of-range coordinate values are clamped to the bounds of -the image. The -.I row -parameter is always used in calculating a strip. The -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.PP -.IR TIFFNumberOfStrips -returns the number of strips in the image. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.BR TIFFReadEncodedStrip (3TIFF), -.BR TIFFReadRawStrip (3TIFF), -.BR TIFFWriteEncodedStrip (3TIFF), -.BR TIFFWriteRawStrip (3TIFF), -.BR libtiff (3TIFF), -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFswab.3tiff b/tiff/man/TIFFswab.3tiff deleted file mode 100755 index d6432fa..0000000 --- a/tiff/man/TIFFswab.3tiff +++ /dev/null @@ -1,80 +0,0 @@ -.\" $Id: TIFFswab.3tiff,v 1.2 2005-11-02 11:07:18 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH SWAB 3TIFF "November 04, 2004" "libtiff" -.SH NAME -TIFFGetBitRevTable, TIFFReverseBits, TIFFSwabShort, TIFFSwabLong, -TIFFSwabArrayOfShort, TIFFSwabArrayOfLong \- byte- and bit-swapping routines -.SH SYNOPSIS -.B "#include " -.sp -.BI "const unsigned char* TIFFGetBitRevTable(int " reversed ")" -.br -.BI "void TIFFReverseBits(u_char *" data ", unsigned long " nbytes ")" -.br -.BI "void TIFFSwabShort(uint16 *" data ")" -.br -.BI "void TIFFSwabLong(uint32 *" data ")" -.br -.BI "void TIFFSwabArrayOfShort(uint16 *" data ", unsigned long " nshorts ")" -.br -.BI "void TIFFSwabArrayOfLong(uint32 *" data ", unsigned long " nlongs ")" -.SH DESCRIPTION -The following routines are used by the library to swap -16- and 32-bit data and to reverse the order of bits in bytes. -.PP -.IR TIFFSwabShort -and -.IR TIFFSwabLong -swap the bytes in a single 16-bit and 32-bit item, respectively. -.IR TIFFSwabArrayOfShort -and -.IR TIFFSwabArrayOfLong -swap the bytes in an array of 16-bit and 32-bit items, respectively. -.PP -.IR TIFFReverseBits -replaces each byte in -.I data -with the equivalent bit-reversed value. This operation is performed with a -lookup table, which is returned using the -.IR TIFFGetBitRevTable -function. -.I reversed -parameter specifies which table should be returned. Supply -.I 1 -if you want bit reversal table. Supply -.I 0 -to get the table that do not reverse bit values. It is a lookup table that can -be used as an -.IR "identity function" ; -i.e. -.IR "TIFFNoBitRevTable[n] == n" . -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/TIFFtile.3tiff b/tiff/man/TIFFtile.3tiff deleted file mode 100755 index 5431f31..0000000 --- a/tiff/man/TIFFtile.3tiff +++ /dev/null @@ -1,131 +0,0 @@ -.\" $Id: TIFFtile.3tiff,v 1.2 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFTILE 3TIFF "February 14, 1992" "libtiff" -.SH NAME -TIFFTileSize, TIFFTileRowSize, TIFFVTileSize, TIFFDefaultTileSize, -TIFFComputeTile, TIFFCheckTile, TIFFNumberOfTiles \- tile-related utility -routines -.SH SYNOPSIS -.B "#include " -.sp -.BI "void TIFFDefaultTileSize(TIFF *" tif ", uint32 *" tw ", uint32 *" th ")" -.br -.BI "tsize_t TIFFTileSize(TIFF *" tif ")" -.br -.BI "tsize_t TIFFTileRowSize(TIFF *" tif ")" -.br -.BI "tsize_t TIFFVTileSize(TIFF *" tif ", uint32 " nrows ")" -.br -.BI "ttile_t TIFFComputeTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")" -.br -.BI "int TIFFCheckTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")" -.br -.BI "ttile_t TIFFNumberOfTiles(TIFF *" tif ")" -.br -.SH DESCRIPTION -.I TIFFDefaultTileSize -returns the pixel width and height of a reasonable-sized tile; suitable for -setting up the -.I TileWidth -and -.I TileLength -tags. -If the -.I tw -and -.I th -values passed in are non-zero, then they are adjusted to reflect any -compression-specific requirements. The returned width and height are -constrained to be a multiple of 16 pixels to conform with the -.SM TIFF -specification. -.PP -.I TIFFTileSize -returns the equivalent size for a tile of data as it would be returned in a -call to -.I TIFFReadTile -or as it would be expected in a call to -.IR TIFFWriteTile . -.PP -.I TIFFVTileSize -returns the number of bytes in a row-aligned tile with -.I nrows -of data. -.PP -.I TIFFTileRowSize -returns the number of bytes of a row of data in a tile. -.PP -.IR TIFFComputeTile -returns the tile that contains the specified coordinates. A valid tile is -always returned; out-of-range coordinate values are clamped to the bounds of -the image. The -.I x -and -.I y -parameters are always used in calculating a tile. The -.I z -parameter is used if the image is deeper than 1 slice (\c -.IR ImageDepth >1). -The -.I sample -parameter is used only if data are organized in separate planes (\c -.IR PlanarConfiguration =2). -.PP -.IR TIFFCheckTile -returns a non-zero value if the supplied coordinates are within the bounds of -the image and zero otherwise. The -.I x -parameter is checked against the value of the -.I ImageWidth -tag. The -.I y -parameter is checked against the value of the -.I ImageLength -tag. The -.I z -parameter is checked against the value of the -.I ImageDepth -tag (if defined). The -.I sample -parameter is checked against the value of the -.I SamplesPerPixel -parameter if the data are organized in separate planes. -.PP -.IR TIFFNumberOfTiles -returns the number of tiles in the image. -.SH DIAGNOSTICS -None. -.SH "SEE ALSO" -.BR TIFFReadEncodedTile (3TIFF), -.BR TIFFReadRawTile (3TIFF), -.BR TIFFReadTile (3TIFF), -.BR TIFFWriteEncodedTile (3TIFF), -.BR TIFFWriteRawTile (3TIFF), -.BR TIFFWriteTile (3TIFF), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/bmp2tiff.1 b/tiff/man/bmp2tiff.1 deleted file mode 100755 index f5d68ce..0000000 --- a/tiff/man/bmp2tiff.1 +++ /dev/null @@ -1,85 +0,0 @@ -.\" $Id: bmp2tiff.1,v 1.7 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 2004, Andrey Kiselev -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH BMP2TIFF 1 "15 October, 2004" "libtiff" -.SH NAME -bmp2tiff \- create a -.SM TIFF -file from a Microsoft Windows Device Independent Bitmap image file -.SH SYNOPSIS -.B bmp2tiff -[ -.I options -] -.I input.bmp -[ -.I input2.bmp ...\& -] -.I output.tiff -.SH DESCRIPTION -.I bmp2tiff -converts a Microsoft Windows Device Independent Bitmap image file to -.SM TIFF. -If several input BMP files are being specified the multipage -.SM TIFF -output file will be created. By default, the -.SM TIFF -image is created with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the PackBits algorithm (\c -.IR Compression =32773), -and with each strip no more than 8 kilobytes. -These characteristics can overridden, or explicitly specified -with the options described below. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm (the default), -.B "\-c jpeg" -for the baseline JPEG compression algorithm, -.B "\-c zip" -for the Deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch. -.TP -.BI \-r " number" -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.SH "SEE ALSO" -.BR gif2tiff (1), -.BR pal2rgb (1), -.BR ppm2tiff (1), -.BR raw2tiff (1), -.BR ras2tiff (1), -.BR sgi2tiff (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/fax2ps.1 b/tiff/man/fax2ps.1 deleted file mode 100755 index 9525f20..0000000 --- a/tiff/man/fax2ps.1 +++ /dev/null @@ -1,159 +0,0 @@ -.\" $Id: fax2ps.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.ds Ps PostScript -.if n .po 0 -.TH FAX2PS 1 "November 2, 2005" "libtiff" -.SH NAME -fax2ps \- convert a -.SM TIFF -facsimile to compressed \*(Ps\(tm -.SH SYNOPSIS -.B fax2ps -[ -.I options -] [ -.I file ...\& -] -.SH DESCRIPTION -.I fax2ps -reads one or more -.SM TIFF -facsimile image files and prints a compressed form of -\*(Ps on the standard output that is suitable for printing. -.PP -By default, each page is scaled to reflect the -image dimensions and resolutions stored in the file. -The -.B \-x -and -.B \-y -options can be used to specify the horizontal and vertical -image resolutions (lines/inch), respectively. -If the -.B \-S -option is specified, each page is scaled to fill an output page. -The default output page is 8.5 by 11 inches. -Alternate page dimensions can be specified in inches with the -.B \-W -and -.B \-H -options. -.PP -By default -.I fax2ps -generates \*(Ps for all pages in the file. -The -.B \-p -option can be used to select one or more pages from -a multi-page document. -.PP -.I fax2ps -generates a compressed form of \*(Ps that is -optimized for sending pages of text to a \*(Ps -printer attached to a host through a low-speed link (such -as a serial line). -Each output page is filled with white and then only -the black areas are drawn. -The \*(Ps specification of the black drawing operations -is optimized by using a special font that encodes the -move-draw operations required to fill -the black regions on the page. -This compression scheme typically results in a substantially -reduced \*(Ps description, relative to the straightforward -imaging of the page with a \*(Ps -.I image -operator. -This algorithm can, however, be ineffective -for continuous-tone and white-on-black images. -For these images, it sometimes is more efficient to send -the raster bitmap image directly; see -.BR tiff2ps (1). -.SH OPTIONS -.TP 10 -.BI \-p " number" -Print only the indicated page. -Multiple pages may be printed by specifying -this option more than once. -.TP 10 -.BI \-x " resolution" -Use -.I resolution -as the horizontal resolution, in dots/inch, of the image data. -By default this value is taken from the file. -.TP 10 -.BI \-y " resolution" -Use -.I resolution -as the vertical resolution, in lines/inch, of the image data. -By default this value is taken from the file. -.TP 10 -.B \-S -Scale each page of image data to fill the output page dimensions. -By default images are presented according to the dimension -information recorded in the -.SM TIFF -file. -.TP 10 -.BI \-W " width" -Use -.I width -as the width, in inches, of the output page. -.TP 10 -.BI \-H " height" -Use -.I height -as the height, in inches, of the output page. -.SH DIAGNOSTICS -Some messages about malformed -.SM TIFF -images come from the -.SM TIFF -library. -.PP -Various messages about badly formatted facsimile images -may be generated due to transmission errors in received -facsimile. -.I fax2ps -attempts to recover from such data errors by resynchronizing -decoding at the end of the current scanline. -This can result in long horizontal black lines in the resultant -\*(Ps image. -.SH NOTES -If the destination printer supports \*(Ps Level II then -it is always faster to just send the encoded bitmap generated -by the -.BR tiff2ps (1) -program. -.SH BUGS -.I fax2ps -should probably figure out when it is doing a poor -job of compressing the output and just generate -\*(Ps to image the bitmap raster instead. -.SH "SEE ALSO" -.BR tiff2ps (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/fax2tiff.1 b/tiff/man/fax2tiff.1 deleted file mode 100755 index 873cab1..0000000 --- a/tiff/man/fax2tiff.1 +++ /dev/null @@ -1,286 +0,0 @@ -.\" $Id: fax2tiff.1,v 1.7 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH FAX2TIFF 1 "November 2, 2005" "libtiff" -.SH NAME -fax2tiff \- create a -.SM TIFF -Class F fax file from raw fax data -.SH SYNOPSIS -.B fax2tiff -[ -.I options -] [ -.B \-o -.I output.tif -] -.I input.raw -.SH DESCRIPTION -.I Fax2tiff -creates a -.SM TIFF -file containing -.SM CCITT -Group 3 or Group 4 encoded data from one or more files containing ``raw'' -Group 3 or Group 4 encoded data (typically obtained directly from a fax modem). -By default, each row of data in the resultant -.SM TIFF -file is 1-dimensionally encoded and -padded or truncated to 1728 pixels, as needed. -The resultant image is a set of low resolution (98 lines/inch) -or medium resolution (196 lines/inch) -pages, each of which is a single strip of data. -The generated file conforms to the -.SM TIFF -Class F (\c -.SM FAX\c -) specification for storing facsimile data. -This means, in particular, that each page of the data does -.B not -include the trailing -.I "return to control" -(\c -.SM RTC\c -) code; as required -for transmission by the -.SM CCITT -Group 3 specifications. -The old, ``classic'', format is created if the -.B \-c -option is used. -(The Class F format can also be requested with the -.B \-f -option.) -.PP -The default name of the output image is -.IR fax.tif ; -this can be changed with the -.B \-o -option. -Each input file is assumed to be a separate page of facsimile data -from the same document. -The order in which input files are specified on the command -line is the order in which the resultant pages appear in the -output file. -.SH OPTIONS -Options that affect the interpretation of input data are: -.TP -.B \-3 -Assume input data is -.SM CCITT -Group 3 encoded (default). -.TP -.B \-4 -Assume input data is -.SM CCITT -Group 4 encoded. -.TP -.B \-U -Assume input data is uncompressed (Group 3 or Group 4). -.TP -.B \-1 -Assume input data is encoded with the 1-dimensional version of the -.SM CCITT -Group 3 Huffman encoding algorithm (default). -.TP -.B \-2 -Assume input data is 2-dimensional version of the -.SM CCITT -Group 3 Huffman encoding algorithm. -.TP -.B \-P -Assume input data is -.B not -EOL-aligned (default). This option has effect with Group 3 encoded input only. -.TP -.B \-A -Assume input data is EOL-aligned. This option has effect with Group 3 -encoded input only. -.TP -.B \-M -Treat input data as having bits filled from most significant bit (\c -.SM MSB\c -) to most least bit (\c -.SM LSB\c -). -.TP -.B \-L -Treat input data as having bits filled from least significant bit (\c -.SM LSB\c -) to most significant bit (\c -.SM MSB\c -) (default). -.TP -.B \-B -Assume input data was encoded with black as 0 and white as 1. -.TP -.B \-W -Assume input data was encoded with black as 1 and white as 0 (default). -.TP -.B \-R -Specify the vertical resolution, in lines/inch, of the input images. -By default input are assumed to have a vertical resolution of 196 lines/inch. -If images are low resolution facsimile, a value of 98 lines/inch should -be specified. -.TP -.B \-X -Specify the width, in pixels, of the input images. -By default input are assumed to have a width of 1728 pixels. -.PP -Options that affect the output file format are: -.TP -.B \-o -Specify the name of the output file. -.TP -.B \-7 -Force output to be compressed with the -.SM CCITT -Group 3 Huffman encoding algorithm (default). -.TP -.B \-8 -Force output to be compressed with the -.SM CCITT -Group 4 Huffman encoding. -.TP -.B \-u -Force output to be uncompressed (Group 3 or Group 4). -.TP -.B \-5 -Force output to be encoded with the 1-dimensional version of the -.SM CCITT -Group 3 Huffman encoding algorithm. -.TP -.B \-6 -Force output to be encoded with the 2-dimensional version of the -.SM CCITT -Group 3 Huffman encoding algorithm (default). -.TP -.B \-a -Force the last bit of each -.I "End Of Line" -(\c -.SM EOL\c -) code to land on a byte boundary (default). This ``zero padding'' will -be reflected in the contents of the -.I Group3Options -tag of the resultant -.SM TIFF -file. This option has effect with Group 3 encoded output only. -.TP -.B \-p -Do not EOL-align output. This option has effect with Group 3 encoded -output only. -.TP -.B \-c -Generate "classic" Group 3 TIFF format. -.TP -.B \-f -Generate TIFF Class F (TIFF/F) format (default). -.TP -.B \-m -Force output data to have bits filled from most significant bit (\c -.SM MSB\c -) to most least bit (\c -.SM LSB\c -). -.TP -.B \-l -Force output data to have bits filled from least significant bit (\c -.SM LSB\c -) to most significant bit (\c -.SM MSB\c -) (default). -.TP -.B \-r -Specify the number of rows (scanlines) in each strip of data -written to the output file. -By default (or when value -.B 0 -is specified), -.I tiffcp -attempts to set the rows/strip -that no more than 8 kilobytes of data appear in a strip (with except of G3/G4 -compression schemes). If you specify special value -.B \-1 -it will results in infinite number of the rows per strip. The entire image -will be the one strip in that case. This is default in case of G3/G4 output -compression schemes. -.TP -.B \-s -Stretch the input image vertically by writing each input row of -data twice to the output file. -.TP -.B \-v -Force -.I fax2tiff -to print the number of rows of data it retrieved from the input file. -.TP -.B \-z -Force output to be compressed with the LZW encoding. -.SH DIAGNOSTICS -The following warnings and errors come from the decoding -routines in the library. -.PP -.BR "Warning, %s: Premature EOL at scanline %d (x %d).\en" . -The input data had a row that was shorter than the expected width. -The row is padded with white. -.PP -.BR "%s: Premature EOF at scanline %d (x %d).\en" . -The decoder ran out of data in the middle of a scanline. -The resultant row is padded with white. -.PP -.BR "%s: Bad code word at row %d, x %d\en" . -An invalid Group 3 -.I code -was encountered while decoding the input file. -The row number and horizontal position is given. -The remainder of the input row is discarded, while -the corresponding output row is padded with white. -.PP -.BR "%s: Bad 2D code word at scanline %d.\en" . -An invalid Group 4 or 2D Group 3 -.I code -was encountered while decoding the input file. -The row number and horizontal position is given. -The remainder of the input row is discarded, while -the corresponding output row is padded with white. -.SH BUGS -Input data are assumed to have a a ``top left'' orientation; -it should be possible to override this assumption -from the command line. -.SH "SEE ALSO" -.BR "\s-1CCITT\s+1 Recommendation T.4" -(Standardization of Group 3 Facsimile Apparatus for Document Transmission). -.PP -.BR "The Spirit of TIFF Class F", -an appendix to the TIFF 5.0 specification prepared by Cygnet Technologies. -.PP -.BR tiffinfo (1), -.BR tiffdither (1), -.BR tiffgt (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/gif2tiff.1 b/tiff/man/gif2tiff.1 deleted file mode 100755 index 5f01d8d..0000000 --- a/tiff/man/gif2tiff.1 +++ /dev/null @@ -1,81 +0,0 @@ -.\" $Id: gif2tiff.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH GIF2TIFF 1 "November 2, 2005" "libtiff" -.SH NAME -gif2tiff \- create a -.SM TIFF -file from a GIF87 format image file -.SH SYNOPSIS -.B gif2tiff -[ -.I options -] -.I input.gif -.I output.tif -.SH DESCRIPTION -.I Gif2tiff -converts a file in the GIF87 format to -.SM TIFF. -The -.SM TIFF -image is created as a palette image, with samples -compressed with the Lempel-Ziv & Welch algorithm (\c -.IR Compression =5). -These characteristics can overridden, or explicitly specified -with the options described below. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm, -.B "\-c zip" -for the Deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch (the default). -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.SH NOTES -The program is based on Paul Haeberli's -.I fromgif -program which, in turn, is based on Marcel J.E. Mol's GIF reader. -.SH BUGS -Should have more options to control output format. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/libtiff.3tiff b/tiff/man/libtiff.3tiff deleted file mode 100755 index 59895d6..0000000 --- a/tiff/man/libtiff.3tiff +++ /dev/null @@ -1,545 +0,0 @@ -.\" $Id: libtiff.3tiff,v 1.4 2012-07-29 15:45:30 tgl Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH INTRO 3TIFF "November 2, 2005" "libtiff" -.SH NAME -libtiff \- introduction to -.IR libtiff , -a library for reading and writing -.SM TIFF -files -.SH SYNOPSIS -.B "#include " -.sp -cc file.c -.B -ltiff -.SH DESCRIPTION -.I libtiff -is a library for reading and writing data files encoded with the -.I "Tag Image File" -format, Revision 6.0 (or revision 5.0 or revision 4.0). This file format is -suitable for archiving multi-color and monochromatic image data. -.PP -The library supports several compression algorithms, as indicated by the -.I Compression -field, including: -no compression (1), -.SM CCITT -1D Huffman compression (2), -.SM CCITT -Group 3 Facsimile compression (3), -.SM CCITT -Group 4 Facsimile compression (4), -Lempel-Ziv & Welch compression (5), -baseline JPEG compression (7), -word-aligned 1D Huffman compression (32771), -and -PackBits compression (32773). -In addition, several nonstandard compression algorithms are supported: the -4-bit compression algorithm used by the -.I ThunderScan -program (32809) (decompression only), NeXT's 2-bit compression algorithm -(32766) (decompression only), an experimental LZ-style algorithm known as -Deflate (32946), and an experimental CIE LogLuv compression scheme designed -for images with high dynamic range (32845 for LogL and 32845 for LogLuv). -Directory information may be in either little- or big-endian byte order\-byte -swapping is automatically done by the library. Data bit ordering may be either -Most Significant Bit (\c -.SM MSB\c -) to Least Significant Bit (\c -.SM LSB\c -) or -.SM LSB -to -.SM MSB. -Finally, the library does not support files in which the -.IR BitsPerSample , -.IR Compression , -.IR MinSampleValue , -or -.IR MaxSampleValue -fields are defined differently on a per-sample basis -(in Rev. 6.0 the -.I Compression -tag is not defined on a per-sample basis, so this is immaterial). -.SH "DATA TYPES" -The library makes extensive use of C typedefs to promote portability. -Two sets of typedefs are used, one for communication with clients -of the library and one for internal data structures and parsing of the -.SM TIFF -format. -The following typedefs are exposed to users either through function -definitions or through parameters passed through the varargs interfaces. -.in +.5i -.sp 5p -.ta +\w'typedef unsigned <\fIthing\fP> uint32; 'u -.nf -typedef unsigned short uint16; 16-bit unsigned integer -typedef unsigned <\fIthing\fP> uint32; 32-bit unsigned integer -.sp 5p -typedef unsigned int ttag_t; directory tag -typedef uint16 tdir_t; directory index -typedef uint16 tsample_t; sample number -typedef uint32 tstrip_t; strip number -typedef uint32 ttile_t; tile number -typedef int32 tsize_t; i/o size in bytes -typedef void* tdata_t; image data ref -typedef void* thandle_t; client data handle -typedef int32 toff_t; file offset -.fi -.sp 5p -.in -.5i -Note that -.IR tstrip_t , -.IR ttile_t , -and -.I tsize_t -are constrained to be no more than 32-bit quantities by 32-bit fields they are -stored in in the -.SM TIFF -image. -Likewise -.I tsample_t -is limited by the 16-bit field used to store the -.I SamplesPerPixel -tag. -.I tdir_t -constrains the maximum number of -.SM IFDs -that may appear in an image and may be an arbitrary size (w/o penalty). -.I ttag_t -must be either int, unsigned int, pointer, or double because the library uses -a varargs interface and -.SM "ANSI C" -restricts the type of the parameter before an ellipsis to be a promoted type. -.I toff_t -is defined as int32 because TIFF file offsets are (unsigned) 32-bit -quantities. A signed value is used because some interfaces return \-1 on -error. Finally, note that user-specified data references are passed as opaque -handles and only cast at the lowest layers where their type is presumed. -.SH "LIST OF ROUTINES" -The following routines are part of the library. Consult specific manual pages -for details on their operation; on most systems doing ``man function-name'' -will work. -.sp -.nf -.ta \w'TIFFCheckpointDirectory'u+2n -\fIName\fP \fIDescription\fP -.sp 5p -TIFFCheckpointDirectory writes the current state of the directory -TIFFCheckTile very x,y,z,sample is within image -TIFFCIELabToRGBInit initialize CIE L*a*b* 1976 to RGB conversion state -TIFFCIELabToXYZ perform CIE L*a*b* 1976 to CIE XYZ conversion -TIFFClientOpen open a file for reading or writing -TIFFClose close an open file -TIFFComputeStrip return strip containing y,sample -TIFFComputeTile return tile containing x,y,z,sample -TIFFCurrentDirectory return index of current directory -TIFFCurrentRow return index of current scanline -TIFFCurrentStrip return index of current strip -TIFFCurrentTile return index of current tile -TIFFDataWidth return the size of TIFF data types -TIFFError library error handler -TIFFFdOpen open a file for reading or writing -TIFFFieldDataType get data type from field information -TIFFFieldName get field name from field information -TIFFFieldPassCount get whether to pass a value count to Get/SetField -TIFFFieldReadCount get number of values to be read from field -TIFFFieldTag get tag value from field information -TIFFFieldWithName get field information given field name -TIFFFieldWithTag get field information given tag -TIFFFieldWriteCount get number of values to be written to field -TIFFFileName return name of open file -TIFFFileno return open file descriptor -TIFFFindCODEC find standard codec for the specific scheme -TIFFFindField get field information given tag and data type -TIFFFlush flush all pending writes -TIFFFlushData flush pending data writes -TIFFGetBitRevTable return bit reversal table -TIFFGetField return tag value in current directory -TIFFGetFieldDefaulted return tag value in current directory -TIFFGetMode return open file mode -TIFFGetVersion return library version string -TIFFIsCODECConfigured check, whether we have working codec -TIFFIsMSB2LSB return true if image data is being returned - with bit 0 as the most significant bit -TIFFIsTiled return true if image data is tiled -TIFFIsByteSwapped return true if image data is byte-swapped -TIFFNumberOfStrips return number of strips in an image -TIFFNumberOfTiles return number of tiles in an image -TIFFOpen open a file for reading or writing -TIFFPrintDirectory print description of the current directory -TIFFReadBufferSetup specify i/o buffer for reading -TIFFReadDirectory read the next directory -TIFFReadEncodedStrip read and decode a strip of data -TIFFReadEncodedTile read and decode a tile of data -TIFFReadRawStrip read a raw strip of data -TIFFReadRawTile read a raw tile of data -TIFFReadRGBAImage read an image into a fixed format raster -TIFFReadScanline read and decode a row of data -TIFFReadTile read and decode a tile of data -TIFFRegisterCODEC override standard codec for the specific scheme -TIFFReverseBits reverse bits in an array of bytes -TIFFRGBAImageBegin setup decoder state for TIFFRGBAImageGet -TIFFRGBAImageEnd release TIFFRGBAImage decoder state -TIFFRGBAImageGet read and decode an image -TIFFRGBAImageOK is image readable by TIFFRGBAImageGet -TIFFScanlineSize return size of a scanline -TIFFSetDirectory set the current directory -TIFFSetSubDirectory set the current directory -TIFFSetErrorHandler set error handler function -TIFFSetField set a tag's value in the current directory -TIFFSetWarningHandler set warning handler function -TIFFStripSize returns size of a strip -TIFFRawStripSize returns the number of bytes in a raw strip -TIFFSwabShort swap bytes of short -TIFFSwabLong swap bytes of long -TIFFSwabArrayOfShort swap bytes of an array of shorts -TIFFSwabArrayOfLong swap bytes of an array of longs -TIFFTileRowSize return size of a row in a tile -TIFFTileSize return size of a tile -TIFFUnRegisterCODEC unregisters the codec -TIFFVGetField return tag value in current directory -TIFFVGetFieldDefaulted return tag value in current directory -TIFFVSetField set a tag's value in the current directory -TIFFVStripSize returns the number of bytes in a strip -TIFFWarning library warning handler -TIFFWriteDirectory write the current directory -TIFFWriteEncodedStrip compress and write a strip of data -TIFFWriteEncodedTile compress and write a tile of data -TIFFWriteRawStrip write a raw strip of data -TIFFWriteRawTile write a raw tile of data -TIFFWriteScanline write a scanline of data -TIFFWriteTile compress and write a tile of data -TIFFXYZToRGB perform CIE XYZ to RGB conversion -TIFFYCbCrToRGBInit initialize YCbCr to RGB conversion state -TIFFYCbCrtoRGB perform YCbCr to RGB conversion -.sp -Auxiliary functions: -_TIFFfree free memory buffer -_TIFFmalloc dynamically allocate memory buffer -_TIFFmemcmp compare contents of the memory buffers -_TIFFmemcpy copy contents of the one buffer to another -_TIFFmemset fill memory buffer with a constant byte -_TIFFrealloc dynamically reallocate memory buffer - -.fi -.SH "TAG USAGE" -The table below lists the -.SM TIFF -tags that are recognized and handled by the library. -If no use is indicated in the table, then the library -reads and writes the tag, but does not use it internally. -Note that some tags are meaningful only when a particular -compression scheme is being used; e.g. -.I Group3Options -is only useful if -.I Compression -is set to -.SM CCITT -Group 3 encoding. -Tags of this sort are considered -.I codec-specific -tags and the library does not recognize them except when the -.I Compression -tag has been previously set to the relevant compression scheme. -.sp -.nf -.ta \w'TIFFTAG_JPEGTABLESMODE'u+2n +\w'Value'u+2n +\w'R/W'u+2n -\fITag Name\fP \fIValue\fP \fIR/W\fP \fILibrary Use/Notes\fP -.sp 5p -.nf -Artist 315 R/W -BadFaxLines 326 R/W -BitsPerSample 258 R/W lots -CellLength 265 parsed but ignored -CellWidth 264 parsed but ignored -CleanFaxData 327 R/W -ColorMap 320 R/W -ColorResponseUnit 300 parsed but ignored -Compression 259 R/W choosing codec -ConsecutiveBadFaxLines 328 R/W -Copyright 33432 R/W -DataType 32996 R obsoleted by SampleFormat tag -DateTime 306 R/W -DocumentName 269 R/W -DotRange 336 R/W -ExtraSamples 338 R/W lots -FaxRecvParams 34908 R/W -FaxSubAddress 34909 R/W -FaxRecvTime 34910 R/W -FillOrder 266 R/W control bit order -FreeByteCounts 289 parsed but ignored -FreeOffsets 288 parsed but ignored -GrayResponseCurve 291 parsed but ignored -GrayResponseUnit 290 parsed but ignored -Group3Options 292 R/W used by Group 3 codec -Group4Options 293 R/W -HostComputer 316 R/W -ImageDepth 32997 R/W tile/strip calculations -ImageDescription 270 R/W -ImageLength 257 R/W lots -ImageWidth 256 R/W lots -InkNames 333 R/W -InkSet 332 R/W -JPEGTables 347 R/W used by JPEG codec -Make 271 R/W -Matteing 32995 R obsoleted by ExtraSamples tag -MaxSampleValue 281 R/W -MinSampleValue 280 R/W -Model 272 R/W -NewSubFileType 254 R/W called SubFileType in spec -NumberOfInks 334 R/W -Orientation 274 R/W -PageName 285 R/W -PageNumber 297 R/W -PhotometricInterpretation 262 R/W used by Group 3 and JPEG codecs -PlanarConfiguration 284 R/W data i/o -Predictor 317 R/W used by LZW and Deflate codecs -PrimaryChromacities 319 R/W -ReferenceBlackWhite 532 R/W -ResolutionUnit 296 R/W used by Group 3 codec -RowsPerStrip 278 R/W data i/o -SampleFormat 339 R/W -SamplesPerPixel 277 R/W lots -SMinSampleValue 340 R/W -SMaxSampleValue 341 R/W -Software 305 R/W -StoNits 37439 R/W -StripByteCounts 279 R/W data i/o -StripOffsets 273 R/W data i/o -SubFileType 255 R/W called OSubFileType in spec -TargetPrinter 337 R/W -Thresholding 263 R/W -TileByteCounts 324 R/W data i/o -TileDepth 32998 R/W tile/strip calculations -TileLength 323 R/W data i/o -TileOffsets 324 R/W data i/o -TileWidth 322 R/W data i/o -TransferFunction 301 R/W -WhitePoint 318 R/W -XPosition 286 R/W -XResolution 282 R/W -YCbCrCoefficients 529 R/W used by TIFFRGBAImage support -YCbCrPositioning 531 R/W tile/strip size calulcations -YCbCrSubsampling 530 R/W -YPosition 286 R/W -YResolution 283 R/W used by Group 3 codec -.SH "PSEUDO TAGS" -In addition to the normal -.SM TIFF -tags the library supports a collection of -tags whose values lie in a range outside the valid range of -.SM TIFF -tags. -These tags are termed -.I pseud-tags -and are used to control various codec-specific functions within the library. -The table below summarizes the defined pseudo-tags. -.sp -.nf -.ta \w'TIFFTAG_JPEGTABLESMODE'u+2n +\w'Codec'u+2n +\w'R/W'u+2n -\fITag Name\fP \fICodec\fP \fIR/W\fP \fILibrary Use/Notes\fP -.sp 5p -.nf -TIFFTAG_FAXMODE G3 R/W general codec operation -TIFFTAG_FAXFILLFUNC G3/G4 R/W bitmap fill function -TIFFTAG_JPEGQUALITY JPEG R/W compression quality control -TIFFTAG_JPEGCOLORMODE JPEG R/W control colorspace conversions -TIFFTAG_JPEGTABLESMODE JPEG R/W control contents of \fIJPEGTables\fP tag -TIFFTAG_ZIPQUALITY Deflate R/W compression quality level -TIFFTAG_PIXARLOGDATAFMT PixarLog R/W user data format -TIFFTAG_PIXARLOGQUALITY PixarLog R/W compression quality level -TIFFTAG_SGILOGDATAFMT SGILog R/W user data format -.fi -.TP -.B TIFFTAG_FAXMODE -Control the operation of the Group 3 codec. -Possible values (independent bits that can be combined by -or'ing them together) are: -FAXMODE_CLASSIC -(enable old-style format in which the -.SM RTC -is written at the end of the last strip), -FAXMODE_NORTC -(opposite of -FAXMODE_CLASSIC; -also called -FAXMODE_CLASSF), -FAXMODE_NOEOL -(do not write -.SM EOL -codes at the start of each row of data), -FAXMODE_BYTEALIGN -(align each encoded row to an 8-bit boundary), -FAXMODE_WORDALIGN -(align each encoded row to an 16-bit boundary), -The default value is dependent on the compression scheme; this -pseudo-tag is used by the various G3 and G4 codecs to share code. -.TP -.B TIFFTAG_FAXFILLFUNC -Control the function used to convert arrays of black and white -runs to packed bit arrays. -This hook can be used to image decoded scanlines in multi-bit -depth rasters (e.g. for display in colormap mode) -or for other purposes. -The default value is a pointer to a builtin function that images -packed bilevel data. -.TP -.B TIFFTAG_IPTCNEWSPHOTO -Tag contaings image metadata per the IPTC newsphoto spec: Headline, -captioning, credit, etc... Used by most wire services. -.TP -.B TIFFTAG_PHOTOSHOP -Tag contains Photoshop captioning information and metadata. Photoshop -uses in parallel and redundantly alongside IPTCNEWSPHOTO information. -.TP -.B TIFFTAG_JPEGQUALITY -Control the compression quality level used in the baseline algorithm. -Note that quality levels are in the range 0-100 with a default value of 75. -.TP -.B TIFFTAG_JPEGCOLORMODE -Control whether or not conversion is done between -RGB and YCbCr colorspaces. -Possible values are: -JPEGCOLORMODE_RAW -(do not convert), and -JPEGCOLORMODE_RGB -(convert to/from RGB) -The default value is JPEGCOLORMODE_RAW. -.TP -.B TIFFTAG_JPEGTABLESMODE -Control the information written in the -.I JPEGTables -tag. -Possible values (independent bits that can be combined by -or'ing them together) are: -JPEGTABLESMODE_QUANT -(include quantization tables), -and -JPEGTABLESMODE_HUFF -(include Huffman encoding tables). -The default value is JPEGTABLESMODE_QUANT|JPEGTABLESMODE_HUFF. -.TP -.B TIFFTAG_ZIPQUALITY -Control the compression technique used by the Deflate codec. -Quality levels are in the range 1-9 with larger numbers yielding better -compression at the cost of more computation. -The default quality level is 6 which yields a good time-space tradeoff. -.TP -.B TIFFTAG_PIXARLOGDATAFMT -Control the format of user data passed -.I in -to the PixarLog codec when encoding and passed -.I out -from when decoding. -Possible values are: -PIXARLOGDATAFMT_8BIT -for 8-bit unsigned pixels, -PIXARLOGDATAFMT_8BITABGR -for 8-bit unsigned ABGR-ordered pixels, -PIXARLOGDATAFMT_11BITLOG -for 11-bit log-encoded raw data, -PIXARLOGDATAFMT_12BITPICIO -for 12-bit PICIO-compatible data, -PIXARLOGDATAFMT_16BIT -for 16-bit signed samples, -and -PIXARLOGDATAFMT_FLOAT -for 32-bit IEEE floating point samples. -.TP -.B TIFFTAG_PIXARLOGQUALITY -Control the compression technique used by the PixarLog codec. -This value is treated identically to TIFFTAG_ZIPQUALITY; see the -above description. -.TP -.B TIFFTAG_SGILOGDATAFMT -Control the format of client data passed -.I in -to the SGILog codec when encoding and passed -.I out -from when decoding. -Possible values are: -SGILOGDATAFMT_FLTXYZ -for converting between LogLuv and 32-bit IEEE floating valued XYZ pixels, -SGILOGDATAFMT_16BITLUV -for 16-bit encoded Luv pixels, -SGILOGDATAFMT_32BITRAW and SGILOGDATAFMT_24BITRAW -for no conversion of data, -SGILOGDATAFMT_8BITRGB -for returning 8-bit RGB data (valid only when decoding LogLuv-encoded data), -SGILOGDATAFMT_FLTY -for converting between LogL and 32-bit IEEE floating valued Y pixels, -SGILOGDATAFMT_16BITL -for 16-bit encoded L pixels, -and -SGILOGDATAFMT_8BITGRY -for returning 8-bit greyscale data -(valid only when decoding LogL-encoded data). -.SH DIAGNOSTICS -All error messages are directed through the -.IR TIFFError -routine. -By default messages are directed to -.B stderr -in the form: -.IR "module: message\en." -Warning messages are likewise directed through the -.IR TIFFWarning -routine. -.SH "SEE ALSO" -.BR fax2tiff (1), -.BR gif2tiff (1), -.BR pal2rgb (1), -.BR ppm2tiff (1), -.BR rgb2ycbcr (1), -.BR ras2tiff (1), -.BR raw2tiff (1), -.BR sgi2tiff (1), -.BR tiff2bw (1), -.BR tiffdither (1), -.BR tiffdump (1), -.BR tiffcp (1), -.BR tiffcmp (1), -.BR tiffgt (1), -.BR tiffinfo (1), -.BR tiffmedian (1), -.BR tiffsplit (1), -.BR tiffsv (1). -.PP -.BR "Tag Image File Format Specification \(em Revision 6.0" , -an Aldus Technical Memorandum. -.PP -.BR "The Spirit of TIFF Class F" , -an appendix to the TIFF 5.0 specification prepared by Cygnet Technologies. -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ -.SH BUGS -The library does not support multi-sample images -where some samples have different bits/sample. -.PP -The library does not support random access to compressed data -that is organized with more than one row per tile or strip. diff --git a/tiff/man/pal2rgb.1 b/tiff/man/pal2rgb.1 deleted file mode 100755 index 0ac2e5a..0000000 --- a/tiff/man/pal2rgb.1 +++ /dev/null @@ -1,111 +0,0 @@ -.\" $Id: pal2rgb.1,v 1.3 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH PAL2RGB 1 "September 20, 2005" "libtiff" -.SH NAME -pal2rgb \- convert a palette color -.SM TIFF -image to a full color image -.SH SYNOPSIS -.B pal2rgb -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I Pal2rgb -converts a palette color -.SM TIFF -image to a full color image by -applying the colormap of the palette image to each sample -to generate a full color -.SM RGB -image. -.SH OPTIONS -Options that affect the interpretation of input data are: -.TP -.B \-C -This option overrides the default behavior of -.I pal2rgb -in determining whether or not -colormap entries contain 16-bit or 8-bit values. -By default the colormap is inspected and -if no colormap entry greater than 255 is found, -the colormap is assumed to have only 8-bit values; otherwise -16-bit values (as required by the -.SM TIFF -specification) are assumed. -The -.B \-C -option can be used to explicitly specify the number of -bits for colormap entries: -.B "\-C 8" -for 8-bit values, -.B "\-C 16" -for 16-bit values. -.PP -Options that affect the output file format are: -.TP -.B \-p -Explicitly select the planar configuration used in organizing -data samples in the output image: -.B "\-p contig" -for samples packed contiguously, and -.B "\-p separate" -for samples stored separately. -By default samples are packed. -.TP -.B \-c -Use the specific compression algorithm to encoded image data -in the output file: -.B "\-c packbits" -for Macintosh Packbits, -.B "\-c lzw" -for Lempel-Ziv & Welch, -.B "\-c zip" -for Deflate, -.B "\-c none" -for no compression. -If no compression-related option is specified, the input -file's compression algorithm is used. -.TP -.B \-r -Explicitly specify the number of rows in each strip of the -output file. -If the -.B \-r -option is not specified, a number is selected such that each -output strip has approximately 8 kilobytes of data in it. -.SH BUGS -Only 8-bit images are handled. -.SH "SEE ALSO" -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/ppm2tiff.1 b/tiff/man/ppm2tiff.1 deleted file mode 100755 index 882fd04..0000000 --- a/tiff/man/ppm2tiff.1 +++ /dev/null @@ -1,105 +0,0 @@ -.\" $Id: ppm2tiff.1,v 1.5 2006-03-01 11:20:33 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH PPM2TIFF 1 "March 1, 2006" "libtiff" -.SH NAME -ppm2tiff \- create a -.SM TIFF -file from -.SM PPM, PGM -and -.SM PBM -image files -.SH SYNOPSIS -.B ppm2tiff -[ -.I options -] [ -.I input.ppm -] -.I output.tif -.SH DESCRIPTION -.I ppm2tiff -converts a file in the -.SM PPM, PGM -and -.SM PBM -image formats to -.SM TIFF. -By default, the -.SM TIFF -image is created with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the Packbits algorithm (\c -.IR Compression =32773), -and with each strip no more than 8 kilobytes. These characteristics can be -overridden, or explicitly specified with the options described below -.PP -If the -.SM PPM -file contains greyscale data, then the -.I PhotometricInterpretation -tag is set to 1 (min-is-black), otherwise it is set to 2 (RGB). -.PP -If no -.SM PPM -file is specified on the command line, -.I ppm2tiff -will read from the standard input. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B none -for no compression, -.B packbits -for PackBits compression (will be used by default), -.B lzw -for Lempel-Ziv & Welch compression, -.B jpeg -for baseline JPEG compression, -.B zip -for Deflate compression, -.B g3 -for CCITT Group 3 (T.4) compression, -and -.B g4 -for CCITT Group 4 (T.6) compression. -.TP -.B \-r -Write data with a specified number of rows per strip; by default the number of -rows/strip is selected so that each strip is approximately 8 kilobytes. -.TP -.B \-R -Mark the resultant image to have the specified X and Y resolution (in -dots/inch). -.SH "SEE ALSO" -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/ras2tiff.1 b/tiff/man/ras2tiff.1 deleted file mode 100755 index 0c78ddb..0000000 --- a/tiff/man/ras2tiff.1 +++ /dev/null @@ -1,96 +0,0 @@ -.\" $Id: ras2tiff.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH RAS2TIFF 1 "November 2, 2005" "libtiff" -.SH NAME -ras2tiff \- create a -.SM TIFF -file from a Sun rasterfile -.SH SYNOPSIS -.B ras2tiff -[ -.I options -] -.I input.ras -.I output.tif -.SH DESCRIPTION -.I ras2tiff -converts a file in the Sun rasterfile format to -.SM TIFF. -By default, the -.SM TIFF -image is created with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the Lempel-Ziv & Welch algorithm (\c -.IR Compression =5), -and with each strip no more than 8 kilobytes. -These characteristics can overridden, or explicitly specified -with the options described below. -.PP -Any colormap information in the rasterfile is carried over to the -.SM TIFF -file by including a -.I Colormap -tag in the output file. -If the rasterfile has a colormap, the -.I PhotometricInterpretation -tag is set to 3 (palette); -otherwise it is set to 2 (RGB) if the depth -is 24 or 1 (min-is-black) if the depth is not 24. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm, -.B "\-c jpeg" -for the baseline JPEG compression algorithm, -.B "\-c zip -for the Deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch (the default). -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.SH BUGS -Does not handle all possible rasterfiles. -In particular, -.I ras2tiff -does not handle run-length encoded images. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ - diff --git a/tiff/man/raw2tiff.1 b/tiff/man/raw2tiff.1 deleted file mode 100755 index 3e832df..0000000 --- a/tiff/man/raw2tiff.1 +++ /dev/null @@ -1,196 +0,0 @@ -.\" $Id: raw2tiff.1,v 1.7 2009-08-24 19:13:40 bfriesen Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH RAW2TIFF 1 "November 2, 2005" "libtiff" -.SH NAME -raw2tiff \- create a -.SM TIFF -file from a raw data -.SH SYNOPSIS -.B raw2tiff -[ -.I options -] -.I input.raw -.I output.tif -.SH DESCRIPTION -.I raw2tiff -converts a raw byte sequence into -.SM TIFF. -By default, the -.SM TIFF -image is created with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the PackBits algorithm (\c -.IR Compression =32773), -and with each strip no more than 8 kilobytes. -These characteristics can overridden, or explicitly specified -with the options described below. -.SH OPTIONS -.TP -.BI \-H " number" -size of input image file header in bytes (0 by default). This amount of data -just will be skipped from the start of file while reading. -.TP -.BI \-w " number" -width of input image in pixels (can be guessed, see -.SM -.B "GUESSING THE IMAGE GEOMETRY" -below). -.TP -.BI \-l " number" -length of input image in lines (can be guessed, see -.SM -.B "GUESSING THE IMAGE GEOMETRY" -below). -.TP -.BI \-b " number" -number of bands in input image (1 by default). -.TP -.BI \-d " data_type" -type of samples in input image, where -.I data_type -may be: -.ta \w'\fBdouble \fR'u -.br -.B byte\t -8-bit unsigned integer (default), -.br -.B short\t -16-bit unsigned integer, -.br -.B long\t -32-bit unsigned integer, -.br -.B sbyte\t -8-bit signed integer, -.br -.B sshort\t -16-bit signed integer, -.br -.B slong\t -32-bit signed integer, -.br -.B float\t -32-bit IEEE floating point, -.br -.B double\t -64-bit IEEE floating point. -.TP -.BI \-i " config" -type of samples interleaving in input image, where -.I config -may be: -.ta \w'\fBpixel \fR'u -.br -.B pixel\t -pixel interleaved data (default), -.br -.B band\t -band interleaved data. -.TP -.BI \-p " photo" -photometric interpretation (color space) of the input image, where -.I photo -may be: -.ta \w'\fBminiswhite \fR'u -.br -.B miniswhite\t -white color represented with 0 value, -.br -.B minisblack\t -black color represented with 0 value (default), -.br -.B rgb\t -image has RGB color model, -.br -.B cmyk\t -image has CMYK (separated) color model, -.br -.B ycbcr\t -image has YCbCr color model, -.br -.B cielab\t -image has CIE L*a*b color model, -.br -.B icclab\t -image has ICC L*a*b color model, -.br -.B itulab\t -image has ITU L*a*b color model. -.TP -.B \-s -swap bytes fetched from the input file. -.TP -.B \-L -input data has LSB2MSB bit order (default). -.TP -.B \-M -input data has MSB2LSB bit order. -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm (the default), -.B "\-c jpeg" -for the baseline JPEG compression algorithm, -.B "\-c zip" -for the Deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch. -.TP -.BI \-r " number" -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.SH GUESSING THE IMAGE GEOMETRY -.I raw2tiff -can guess image width and height in case one or both of these parameters are -not specified. If you omit one of those parameters, the complementary one will -be calculated based on the file size (taking into account header size, number -of bands and data type). If you omit both parameters, the statistical approach -will be used. Utility will compute correlation coefficient between two lines -at the image center using several appropriate line sizes and the highest -absolute value of the coefficient will indicate the right line size. That is -why you should be cautious with the very large images, because guessing -process may take a while (depending on your system performance). Of course, the -utility can't guess the header size, number of bands and data type, so it -should be specified manually. If you don't know anything about your image, -just try with the several combinations of those options. -.P -There is no magic, it is just a mathematical statistics, so it can be wrong -in some cases. But for most ordinary images guessing method will work fine. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/rgb2ycbcr.1 b/tiff/man/rgb2ycbcr.1 deleted file mode 100755 index 01a332c..0000000 --- a/tiff/man/rgb2ycbcr.1 +++ /dev/null @@ -1,99 +0,0 @@ -.\" $Header: /cvs/maptools/cvsroot/libtiff/man/rgb2ycbcr.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH RGB2YCBCR 1 "November 2, 2005" "libtiff" -.SH NAME -rgb2ycbcr \- convert non-YCbCr -.SM TIFF -images to a YCbCr -.SM TIFF -image -.SH SYNOPSIS -.B rgb2ycbcr -[ -.I options -] -.I "src1.tif src2.tif ... dst.tif" -.SH DESCRIPTION -.I rgb2ycbcr -converts -.SM RGB -color, greyscale, or bi-level -.SM TIFF -images to YCbCr images by transforming and sampling pixel data. If multiple -files are specified on the command line each source file is converted to a -separate directory in the destination file. -.PP -By default, chrominance samples are created by sampling -2 by 2 blocks of luminance values; this can be changed with the -.B \-h -and -.B \-v -options. -Output data are compressed with the -.SM PackBits -compression scheme, by default; an alternate scheme can be selected with the -.B \-c -option. -By default, output data are compressed in strips with -the number of rows in each strip selected so that the -size of a strip is never more than 8 kilobytes; -the -.B \-r -option can be used to explicitly set the number of -rows per strip. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm (the default), -.B "\-c jpeg" -for the JPEG compression algorithm, -.B "\-c zip" -for the deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch. -.TP -.B \-h -Set the horizontal sampling dimension to one of: 1, 2 (default), or 4. -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.TP -.B \-v -Set the vertical sampling dimension to one of: 1, 2 (default), or 4. -.SH "SEE ALSO" -.BR tiffinfo (1), -.BR tiffcp (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff diff --git a/tiff/man/sgi2tiff.1 b/tiff/man/sgi2tiff.1 deleted file mode 100755 index 650adb3..0000000 --- a/tiff/man/sgi2tiff.1 +++ /dev/null @@ -1,93 +0,0 @@ -.\" $Id: sgi2tiff.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1991-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH SGI2TIFF 1 "November 2, 2005" "libtiff" -.SH NAME -sgi2tiff \- create a -.SM TIFF -file from an -.SM SGI -image file -.SH SYNOPSIS -.B sgi2tiff -[ -.I options -] -.I input.rgb -.I output.tif -.SH DESCRIPTION -.I sgi2tiff -converts a file in the -.SM SGI -image format to -.SM TIFF. -By default, the -.SM TIFF -image is created with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the Lempel-Ziv & Welch algorithm (\c -.IR Compression =5), -and with each strip no more than 8 kilobytes. -These characteristics can overridden, or explicitly specified -with the options described below. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm), -.B "\-c jpeg" -for the baseline JPEG compression algorithm, -.B "\-c zip -for the Deflate compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch (the default). -.TP -.B \-p -Explicitly select the planar configuration used in organizing -data samples in the output image: -.B "\-p contig" -for samples packed contiguously, and -.B "\-p separate" -for samples stored separately. -By default samples are packed. -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.SH BUGS -Does not record colormap information. -.SH "SEE ALSO" -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/thumbnail.1 b/tiff/man/thumbnail.1 deleted file mode 100755 index f4172bb..0000000 --- a/tiff/man/thumbnail.1 +++ /dev/null @@ -1,90 +0,0 @@ -.\" $Id: thumbnail.1,v 1.2 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1994-1997 Sam Leffler -.\" Copyright (c) 1994-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH THUMBNAIL 1 "November 2, 2005" "libtiff" -.SH NAME -thumbnail \- create a -.SM TIFF -file with thumbnail images -.SH SYNOPSIS -.B thumbnail -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I thumbnail -is a program written to show how one might use the -SubIFD tag (#330) to store thumbnail images. -.I thumbnail -copies a -.SM TIFF -Class F facsimile file to the output file -and for each image an 8-bit greyscale -.IR "thumbnail sketch" . -The output file contains the thumbnail image with the associated -full-resolution page linked below with the SubIFD tag. -.PP -By default, thumbnail images are 216 pixels wide by 274 pixels high. -Pixels are calculated by sampling and filtering the input image -with each pixel value passed through a contrast curve. -.SH OPTIONS -.TP -.B \-w -Specify the width of thumbnail images in pixels. -.TP -.B \-h -Specify the height of thumbnail images in pixels. -.TP -.B \-c -Specify a contrast curve to apply in generating the thumbnail images. -By default pixels values are passed through a linear contrast curve -that simply maps the pixel value ranges. -Alternative curves are: -.B exp50 -for a 50% exponential curve, -.B exp60 -for a 60% exponential curve, -.B exp70 -for a 70% exponential curve, -.B exp80 -for a 80% exponential curve, -.B exp90 -for a 90% exponential curve, -.B exp -for a pure exponential curve, -.B linear -for a linear curve. -.SH BUGS -There are no options to control the format of the saved thumbnail images. -.SH "SEE ALSO" -.BR tiffdump (1), -.BR tiffgt (1), -.BR tiffinfo (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiff2bw.1 b/tiff/man/tiff2bw.1 deleted file mode 100755 index ccbe7e8..0000000 --- a/tiff/man/tiff2bw.1 +++ /dev/null @@ -1,94 +0,0 @@ -.\" $Id: tiff2bw.1,v 1.3 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFF2BW 1 "November 2, 2005" "libtiff" -.SH NAME -tiff2bw \- convert a color -.SM TIFF -image to greyscale -.SH SYNOPSIS -.B tiff2bw -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I Tiff2bw -converts an -.SM RGB -or Palette color -.SM TIFF -image to a greyscale image by -combining percentages of the red, green, and blue channels. -By default, output samples are created by taking -28% of the red channel, 59% of the green channel, and 11% of -the blue channel. -To alter these percentages, the -.BR \-R , -.BR \-G , -and -.BR \-B -options may be used. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression, -.B "\-c packbits" -for the PackBits compression algorithm, -.B "\-c zip -for the Deflate compression algorithm, -.B "\-c g3 -for the CCITT Group 3 compression algorithm, -.B "\-c g4 -for the CCITT Group 4 compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch (the default). -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.TP -.B \-R -Specify the percentage of the red channel to use (default 28). -.TP -.B \-G -Specify the percentage of the green channel to use (default 59). -.TP -.B \-B -Specify the percentage of the blue channel to use (default 11). -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiff2pdf.1 b/tiff/man/tiff2pdf.1 deleted file mode 100755 index ba670cf..0000000 --- a/tiff/man/tiff2pdf.1 +++ /dev/null @@ -1,254 +0,0 @@ -.\" $Id: tiff2pdf.1,v 1.7 2010-12-11 22:47:49 faxguy Exp $ -.\" -.\" Copyright (c) 2003 Ross Finlayson -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the name of -.\" Ross Finlayson may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Ross Finlayson. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL ROSS FINLAYSON BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.\" Process this file with -.\" groff -man -Tascii tiff2pdf.1 -.\" -.TH TIFF2PDF 1 "April 20, 2006" "libtiff" -.SH NAME -tiff2pdf \- convert a TIFF image to a PDF document -.SH SYNOPSIS -.B tiff2pdf -[ -.I options -] -.I input.tiff -.SH DESCRIPTION -.I tiff2pdf -opens a TIFF image and writes a PDF document to standard output. -.PP -The program converts one TIFF file to one PDF file, including multiple page -TIFF files, tiled TIFF files, black and white. grayscale, and color TIFF -files that contain data of TIFF photometric interpretations of bilevel, -grayscale, RGB, YCbCr, CMYK separation, and ICC L*a*b* as supported by -.I libtiff -and PDF. -.PP -If you have multiple TIFF files to convert into one PDF file then use -.I tiffcp -or other program to concatenate the files into a multiple page TIFF file. -If the input TIFF file is of huge dimensions (greater than 10000 pixels height -or width) convert the input image to a tiled TIFF if it is not already. -.PP -The standard output is standard output. Set the output file name with the -.BI \-o " output.pdf" -option. -.PP -All black and white files are compressed into a single strip CCITT G4 Fax -compressed PDF, unless tiled, where tiled black and white images are -compressed into tiled CCITT G4 Fax compressed PDF, -.I libtiff -CCITT support is assumed. -.PP -Color and grayscale data can be compressed using either JPEG compression, -ITU-T T.81, or Zip/Deflate LZ77 compression. Set the compression type using -the -.B \-j -or -.B \-z -options. JPEG compression support -requires that -.I libtiff -be configured with JPEG support, and Zip/Deflate compression support requires -that -.I libtiff -be configured with Zip support, in tiffconf.h. Use only one or the other of -.B \-j -and -.B \-z. -.PP -If the input TIFF contains single strip CCITT G4 Fax compressed information, -then that is written to the PDF file without transcoding, unless the options -of no compression and no passthrough are set, -.B \-d -and -.B \-n. -.PP -If the input TIFF contains JPEG or single strip Zip/Deflate compressed -information, and they are configured, then that is written to the PDF file -without transcoding, unless the options of no compression and no passthrough -are set. -.PP -The default page size upon which the TIFF image is placed is determined by -the resolution and extent of the image data. Default values for the TIFF -image resolution can be set using the -.B \-x -and -.B \-y -options. The page size can be set using the -.B \-p -option for paper size, or -.B \-w -and -.B \-l -for paper width and length, then each page of the TIFF image is centered on -its page. The distance unit for default resolution and page width and -length can be set by the -.B \-u -option, the default unit is inch. -.PP -Various items of the output document information can be set with the -.BR \-e , -.BR \-c , -.BR \-a , -.BR \-t , -.BR \-s , -and -.B \-k -options. Setting the argument of the option to "" for these -tags causes the relevant document information field to be not written. Some -of the document information values otherwise get their information from the -input TIFF image, the software, author, document name, and image description. -.PP -The Portable Document Format (PDF) specification is copyrighted by Adobe -Systems, Incorporated. -.SH OPTIONS -.TP -.BI \-o " output-file" -Set the output to go to file. -.I output-file -.TP -.B \-j -Compress with JPEG (requires -.I libjpeg -configured with -.IR libtiff ). -.TP -.B \-z -Compress with Zip/Deflate (requires -.I zlib -configured with -.IR libtiff ). -.TP -.BI \-q " quality" -Set the compression quality, 1-100 for JPEG. -.TP -.B \-n -Do not allow data to be converted without uncompressing, no compressed -data passthrough. -.TP -.BI \-b -Set PDF ``Interpolate'' user preference. -.TP -.B \-d -Do not compress (decompress). -.TP -.B \-i -Invert colors. -.TP -.BI \-p " paper-size" -Set paper size, e.g., -.BR letter , -.BR legal , -.BR A4 . -.TP -.B \-F -Cause the tiff to fill the PDF page. -.TP -.BR \-u " [" i | m ] -Set distance unit, -.B i -for inch, -.B m -for centimeter. -.TP -.BI \-w " width" -Set width in units. -.TP -.BI \-l " length" -Set length in units. -.TP -.BI \-x " xres" -Set x/width resolution default. -.TP -.BI \-y " yres" -Set y/length resolution default. -.TP -.BR \-r " [" d | o ] -Set -.B d -for resolution default for images without resolution, -.B o -for resolution override for all images. -.TP -.BI \-f -Set PDF ``Fit Window'' user preference. -.TP -.BI \-e " YYYYMMDDHHMMSS" -Set document information date, overrides image or current date/time default, -.I YYYYMMDDHHMMSS. -.TP -.BI \-c " creator" -Set document information creator, overrides image software default. -.TP -.BI \-a " author" -Set document information author, overrides image artist default. -.TP -.BI \-t " title" -Set document information title, overrides image document name default. -.TP -.BI \-s " subject" -Set document information subject, overrides image image description default. -.TP -.BI \-k " keywords" -Set document information keywords. -.TP -.B \-h -List usage reminder to stderr and exit. -.SH EXAMPLES -.TP -The following example would generate the file output.pdf from input.tiff. -.RS -.nf -tiff2pdf \-o output.pdf input.tiff -.fi -.RE -.PP -The following example would generate PDF output from input.tiff and write it -to standard output. -.RS -.nf -tiff2pdf input.tiff -.fi -.RE -.PP -The following example would generate the file output.pdf from input.tiff, -putting the image pages on a letter sized page, compressing the output -with JPEG, with JPEG quality 75, setting the title to ``Document'', and setting -the ``Fit Window'' option. -.RS -.nf -tiff2pdf \-p letter \-j \-q 75 \-t "Document" \-f \-o output.pdf input.tiff -.fi -.RE -.SH BUGS -Please report bugs via the web interface at -.IP -\%http://bugzilla.remotesensing.org/enter_bug.cgi?product=libtiff -.SH "SEE ALSO" -.BR libtiff (3), -.BR tiffcp (1), -.BR tiff2ps (1) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiff2ps.1 b/tiff/man/tiff2ps.1 deleted file mode 100755 index 565e3ac..0000000 --- a/tiff/man/tiff2ps.1 +++ /dev/null @@ -1,294 +0,0 @@ -.\" $Id: tiff2ps.1,v 1.11 2013-03-06 03:35:09 tgl Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.ds Ps PostScript -.if n .po 0 -.TH TIFF2PS 1 "November 2, 2005" "libtiff" -.SH NAME -tiff2ps \- convert a -.SM TIFF -image to \*(Ps\*(Tm -.SH SYNOPSIS -.B tiff2ps -[ -.I options -] -.I "input.tif ..." -.SH DESCRIPTION -.I tiff2ps -reads -.SM TIFF -images and writes \*(Ps or Encapsulated \*(Ps (EPS) -on the standard output. -By default, -.I tiff2ps -writes Encapsulated \*(Ps for the first image in the specified -.SM TIFF -image file. -.PP -By default, -.I tiff2ps -will generate \*(Ps that fills a printed area specified -by the -.SM TIFF -tags in the input file. -If the file does not contain -.I XResolution -or -.I YResolution -tags, then the printed area is set according to the image dimensions. -The -.B \-w -and -.B \-h -options (see below) -can be used to set the dimensions of the printed area in inches; -overriding any relevant -.SM TIFF -tags. -.PP -The \*(Ps generated for -.SM RGB, -palette, and -.SM CMYK -images uses the -.I colorimage -operator. -The \*(Ps generated for -greyscale and bilevel images -uses the -.I image -operator. -When the -.I colorimage -operator is used, \*(Ps code to emulate this operator -on older \*(Ps printers is also generated. -Note that this emulation code can be very slow. -.PP -Color images with associated alpha data are composited over -a white background. -.SH OPTIONS -.TP -.B \-1 -Generate \*(Ps Level 1 (the default). -.TP -.B \-2 -Generate \*(Ps Level 2. -.TP -.B \-3 -Generate \*(Ps Level 3. It basically allows one to use the /flateDecode -filter for ZIP compressed TIFF images. -.TP -.B \-8 -Disable use of ASCII85 encoding with \*(Ps Level 2/3. -.TP -.B \-a -Generate output for all IFDs (pages) in the input file. -.TP -.B \-b -Specify the bottom margin for the output (in inches). This does not affect -the height of the printed image. -.TP -.B \-c -Center the image in the output. This option only shows an effect if both -the -.B \-w -and the -.B \-h -option are given. -.TP -.B \-C -Specify the document creator name. -.TP -.B \-d -Set the initial -.SM TIFF -directory to the specified directory number. -(NB: Directories are numbered starting at zero.) -This option is useful for selecting individual pages in a -multi-page (e.g. facsimile) file. -.TP -.B \-D -Enable duplex printing (two pages per sheet of paper). -.TP -.B \-e -Force the generation of Encapsulated \*(Ps (implies -.BR \-z ). -.TP -.B \-h -Specify the vertical size of the printed area (in inches). -.TP -.B \-H -Specify the maximum height of image (in inches). Images with larger sizes will -be split in several pages. Option -.B \-L -may be used for specifying size of split images overlapping. -.B \-i -Enable/disable pixel interpolation. This option requires a -single numeric value: zero to disable pixel interpolation and -non-zero to enable. The default is enabled. -.TP -.B \-L -Specify the size of overlapping for split images (in inches). Used in -conjunction with -.B \-H -and -.B \-W -options. -.TP -.B \-l -Specify the left margin for the output (in inches). This does not affect -the width of the printed image. -.TP -.B \-m -Where possible render using the -.I imagemask -\*(Ps operator instead of the -.I image -operator. When this option is specified -.I tiff2ps -will use -.I imagemask -for rendering 1 bit deep images. If this option is not specified -or if the image depth is greater than 1 then the -.I image -operator is used. -.TP -.B \-o -Set the initial -.SM TIFF -directory to the -.SM IFD -at the specified file offset. -This option is useful for selecting thumbnail images and the -like which are hidden using the -.I SubIFD -tag. -.TP -.B \-O -Write \*(Ps to specified file instead of standard output. -.TP -.B \-p -Force the generation of (non-Encapsulated) \*(Ps. -.TP -.B \-P L|P -Set optional PageOrientation DSC comment to Landscape or Portrait. -.TP -.B \-r 90|180|270|auto -Rotate image by 90, 180, 270 degrees or auto. Auto picks the best -fit for the image on the specified paper size (eg portrait -or landscape) if -h or -w is specified. Rotation is in degrees -counterclockwise. Auto rotates 90 degrees ccw to produce landscape. -.TP -.B \-s -Generate output for a single IFD (page) in the input file. -.TP -.B \-t -Specify the document title string. -.TP -.B \-T -Print pages for top edge binding. -.TP -.B \-w -Specify the horizontal size of the printed area (in inches). -.TP -.B \-W -Specify the maximum width of image (in inches). Images with larger sizes will -be split in several pages. Options -.B \-L -and -.B \-W -are mutually exclusive. -.TP -.B \-x -Override resolution units specified in the TIFF as centimeters. -.TP -.B \-y -Override resolution units specified in the TIFF as inches. -.TP -.B \-z -When generating \*(Ps Level 2, data is scaled so that it does not -image into the -.I deadzone -on a page (the outer margin that the printing device is unable to mark). -This option suppresses this behavior. -When \*(Ps Level 1 is generated, data is imaged to the entire printed -page and this option has no affect. -.SH EXAMPLES -The following generates \*(Ps Level 2 for all pages of a facsimile: -.RS -.nf -tiff2ps \-a2 fax.tif | lpr -.fi -.RE -Note also that if you have version 2.6.1 or newer of Ghostscript then you -can efficiently preview facsimile generated with the above command. -.PP -To generate Encapsulated \*(Ps for a the image at directory 2 -of an image use: -.RS -.nf -tiff2ps \-d 1 foo.tif -.fi -.RE -(Notice that directories are numbered starting at zero.) -.PP -If you have a long image, it may be split in several pages: -.RS -.nf -tiff2ps \-h11 \-w8.5 \-H14 \-L.5 foo.tif > foo.ps -.fi -.RE -The page size is set to 8.5x11 by -.B \-w -and -.B \-h -options. We will accept a small amount of vertical compression, so -.B \-H -set to 14. Any pages between 11 and 14 inches will be fit onto one page. -Pages longer than 14 inches are cut off at 11 and continued on the next -page. The -.B \-L.5 -option says to repeat a half inch on the next page (to improve readability). -.SH BUGS -Because \*(Ps does not support the notion of a colormap, -8-bit palette images produce 24-bit \*(Ps images. -This conversion results in output that is six times -bigger than the original image and which takes a long time -to send to a printer over a serial line. -Matters are even worse for 4-, 2-, and 1-bit palette images. -.PP -Does not handle tiled images when generating \*(Ps Level I output. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffgt (1), -.BR tiffmedian (1), -.BR tiff2bw (1), -.BR tiffsv (1), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiff2rgba.1 b/tiff/man/tiff2rgba.1 deleted file mode 100755 index c551656..0000000 --- a/tiff/man/tiff2rgba.1 +++ /dev/null @@ -1,97 +0,0 @@ -.\" $Id: tiff2rgba.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFF2RGBA 1 "November 2, 2005" "libtiff" -.SH NAME -tiff2rgba \- convert a -.SM TIFF -image to RGBA color space -.SH SYNOPSIS -.B tiff2rgba -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I Tiff2rgba -converts a wide variety of TIFF images into an RGBA TIFF image. This -includes the ability to translate different color spaces and photometric -interpretation into RGBA, support for alpha blending, and translation -of many different bit depths into a 32bit RGBA image. -.P -Internally this program is implemented using the -.I TIFFReadRGBAImage() -function, and it suffers any limitations of that image. This includes -limited support for > 8 BitsPerSample images, and flaws with some -esoteric combinations of BitsPerSample, photometric interpretation, -block organization and planar configuration. -.P -The generated images are stripped images with four samples per pixel -(red, green, blue and alpha) or if the -.B \-n -flag is used, three samples -per pixel (red, green, and blue). The resulting images are always planar -configuration contiguous. For this reason, this program is a useful utility -for transform exotic TIFF files into a form ingestible by almost any TIFF -supporting software. -.SH OPTIONS -.TP -.B \-c -Specify a compression scheme to use when writing image data: -.B "\-c none" -for no compression (the default), -.B "\-c packbits" -for the PackBits compression algorithm, -.B "\-c zip" -for the Deflate compression algorithm, -.B "\-c jpeg" -for the JPEG compression algorithm, -and -.B "\-c lzw" -for Lempel-Ziv & Welch. -.TP -.B \-r -Write data with a specified number of rows per strip; -by default the number of rows/strip is selected so that each strip -is approximately 8 kilobytes. -.TP -.B \-b -Process the image one block (strip/tile) at a time instead of by reading -the whole image into memory at once. This may be necessary for very large -images on systems with limited RAM. -.TP -.B \-n -Drop the alpha component from the output file, producing a pure RGB file. -Currently this does not work if the -.B \-b -flag is also in effect. -.SH "SEE ALSO" -.BR tiff2bw (1), -.BR TIFFReadRGBAImage (3t), -.BR libtiff (3) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffcmp.1 b/tiff/man/tiffcmp.1 deleted file mode 100755 index 961d812..0000000 --- a/tiff/man/tiffcmp.1 +++ /dev/null @@ -1,87 +0,0 @@ -.\" $Id: tiffcmp.1,v 1.6 2009-08-24 19:13:40 bfriesen Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFCMP 1 "November 2, 2005" "libtiff" -.SH NAME -tiffcmp \- compare two -.SM TIFF -files -.SH SYNOPSIS -.B tiffcmp -[ -.I options -] -.I "file1.tif file2.tif" -.SH DESCRIPTION -.I Tiffcmp -compares the tags and data in two files created according -to the Tagged Image File Format, Revision 6.0. -The schemes used for compressing data in each file -are immaterial when data are compared\-data are compared on -a scanline-by-scanline basis after decompression. -Most directory tags are checked; notable exceptions are: -.IR GrayResponseCurve , -.IR ColorResponseCurve , -and -.IR ColorMap -tags. -Data will not be compared if any of the -.IR BitsPerSample , -.IR SamplesPerPixel , -or -.I ImageWidth -values are not equal. -By default, -.I tiffcmp -will terminate if it encounters any difference. -.SH OPTIONS -.TP -.B \-l -List each byte of image data that differs between the files. -.TP -.BI \-z " number" -List specified number of image data bytes that differs between the files. -.TP -.B \-t -Ignore any differences in directory tags. -.SH BUGS -Tags that are not recognized by the library are not -compared; they may also generate spurious diagnostics. -.PP -The image data of tiled files is not compared, since the -.I TIFFReadScanline() -function is used. An error will be reported for tiled files. -.PP -The pixel and/or sample number reported in differences may be off -in some exotic cases. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffcp.1 b/tiff/man/tiffcp.1 deleted file mode 100755 index 0ed12dc..0000000 --- a/tiff/man/tiffcp.1 +++ /dev/null @@ -1,317 +0,0 @@ -.\" $Id: tiffcp.1,v 1.13 2013-03-06 03:35:09 tgl Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFCP 1 "February 24, 2007" "libtiff" -.SH NAME -tiffcp \- copy (and possibly convert) a -.SM TIFF -file -.SH SYNOPSIS -.B tiffcp -[ -.I options -] -.I "src1.tif ... srcN.tif dst.tif" -.SH DESCRIPTION -.I tiffcp -combines one or more files created according -to the Tag Image File Format, Revision 6.0 -into a single -.SM TIFF -file. -Because the output file may be compressed using a different -algorithm than the input files, -.I tiffcp -is most often used to convert between different compression -schemes. -.PP -By default, -.I tiffcp -will copy all the understood tags in a -.SM TIFF -directory of an input -file to the associated directory in the output file. -.PP -.I tiffcp -can be used to reorganize the storage characteristics of data -in a file, but it is explicitly intended to not alter or convert -the image data content in any way. -.SH OPTIONS -.TP -.B \-a -Append to an existing output file instead of overwriting it. -.TP -.BI \-b " image" -subtract the following monochrome image from all others -processed. This can be used to remove a noise bias -from a set of images. This bias image is typically an -image of noise the camera saw with its shutter closed. -.TP -.B \-B -Force output to be written with Big-Endian byte order. -This option only has an effect when the output file is created or -overwritten and not when it is appended to. -.TP -.B \-C -Suppress the use of ``strip chopping'' when reading images -that have a single strip/tile of uncompressed data. -.TP -.B \-c -Specify the compression to use for data written to the output file: -.B none -for no compression, -.B packbits -for PackBits compression, -.B lzw -for Lempel-Ziv & Welch compression, -.B zip -for Deflate compression, -.B lzma -for LZMA2 compression, -.B jpeg -for baseline JPEG compression, -.B g3 -for CCITT Group 3 (T.4) compression, -.B g4 -for CCITT Group 4 (T.6) compression, -or -.B sgilog -for SGILOG compression. -By default -.I tiffcp -will compress data according to the value of the -.I Compression -tag found in the source file. -.IP -The -.SM CCITT -Group 3 and Group 4 compression algorithms can only -be used with bilevel data. -.IP -Group 3 compression can be specified together with several -T.4-specific options: -.B 1d -for 1-dimensional encoding, -.B 2d -for 2-dimensional encoding, -and -.B fill -to force each encoded scanline to be zero-filled so that the -terminating EOL code lies on a byte boundary. -Group 3-specific options are specified by appending a ``:''-separated -list to the ``g3'' option; e.g. -.B "\-c g3:2d:fill" -to get 2D-encoded data with byte-aligned EOL codes. -.IP -.SM LZW, Deflate -and -.SM LZMA2 -compression can be specified together with a -.I predictor -value. A predictor value of 2 causes each scanline of the output image to -undergo horizontal differencing before it is encoded; a value of 1 forces each -scanline to be encoded without differencing. A value 3 is for floating point -predictor which you can use if the encoded data are in floating point format. -LZW-specific options are specified by appending a ``:''-separated list to the -``lzw'' option; e.g. -.B "\-c lzw:2" -for -.SM LZW -compression with horizontal differencing. -.IP -.SM Deflate -and -.SM LZMA2 -encoders support various compression levels (or encoder presets) set as -character ``p'' and a preset number. ``p1'' is the fastest one with the worst -compression ratio and ``p9'' is the slowest but with the best possible ratio; -e.g. -.B "\-c zip:3:p9" -for -.SM Deflate -encoding with maximum compression level and floating point predictor. -.TP -.B \-f -Specify the bit fill order to use in writing output data. -By default, -.I tiffcp -will create a new file with the same fill order as the original. -Specifying -.B "\-f lsb2msb" -will force data to be written with the FillOrder tag set to -.SM LSB2MSB, -while -.B "\-f msb2lsb" -will force data to be written with the FillOrder tag set to -.SM MSB2LSB. -.TP -.B \-i -Ignore non-fatal read errors and continue processing of the input file. -.TP -.B \-l -Specify the length of a tile (in pixels). -.I tiffcp -attempts to set the tile dimensions so -that no more than 8 kilobytes of data appear in a tile. -.TP -.B \-L -Force output to be written with Little-Endian byte order. -This option only has an effect when the output file is created or -overwritten and not when it is appended to. -.TP -.B \-M -Suppress the use of memory-mapped files when reading images. -.TP -.BI \-o " offset" -Set initial directory offset. -.TP -.B \-p -Specify the planar configuration to use in writing image data -that has one 8-bit sample per pixel. -By default, -.I tiffcp -will create a new file with the same planar configuration as -the original. -Specifying -.B "\-p contig" -will force data to be written with multi-sample data packed -together, while -.B "\-p separate" -will force samples to be written in separate planes. -.TP -.B \-r -Specify the number of rows (scanlines) in each strip of data -written to the output file. -By default (or when value -.B 0 -is specified), -.I tiffcp -attempts to set the rows/strip -that no more than 8 kilobytes of data appear in a strip. If you specify -special value -.B \-1 -it will results in infinite number of the rows per strip. The entire image -will be the one strip in that case. -.TP -.B \-s -Force the output file to be written with data organized in strips -(rather than tiles). -.TP -.B \-t -Force the output file to be written with data organized in tiles (rather than -strips). options can be used to force the resultant image to be written as -strips or tiles of data, respectively. -.TP -.B \-w -Specify the width of a tile (in pixels). -.I tiffcp -attempts to set the tile dimensions so that no more than 8 kilobytes of data -appear in a tile. -.I tiffcp -attempts to set the tile dimensions so that no more than 8 kilobytes of data -appear in a tile. -.TP -.B \-x -Force the output file to be written with PAGENUMBER value in sequence. -.TP -.B \-8 -Write BigTIFF instead of classic TIFF format. -.TP -.BI \-,= character -substitute -.I character -for `,' in parsing image directory indices -in files. This is necessary if filenames contain commas. -Note that -.B \-,= -with whitespace immediately following will disable -the special meaning of the `,' entirely. See examples. -.SH EXAMPLES -The following concatenates two files and writes the result using -.SM LZW -encoding: -.RS -.nf -tiffcp \-c lzw a.tif b.tif result.tif -.fi -.RE -.PP -To convert a G3 1d-encoded -.SM TIFF -to a single strip of G4-encoded data the following might be used: -.RS -.nf -tiffcp \-c g4 \-r 10000 g3.tif g4.tif -.fi -.RE -(1000 is just a number that is larger than the number of rows in -the source file.) - -To extract a selected set of images from a multi-image TIFF file, the file -name may be immediately followed by a `,' separated list of image directory -indices. The first image is always in directory 0. Thus, to copy the 1st and -3rd images of image file ``album.tif'' to ``result.tif'': -.RS -.nf -tiffcp album.tif,0,2 result.tif -.fi -.RE - -A trailing comma denotes remaining images in sequence. The following command -will copy all image with except the first one: -.RS -.nf -tiffcp album.tif,1, result.tif -.fi -.RE - -Given file ``CCD.tif'' whose first image is a noise bias -followed by images which include that bias, -subtract the noise from all those images following it -(while decompressing) with the command: -.RS -.nf -tiffcp \-c none \-b CCD.tif CCD.tif,1, result.tif -.fi -.RE - -If the file above were named ``CCD,X.tif'', the -.B \-,= -option would -be required to correctly parse this filename with image numbers, -as follows: -.RS -.nf -tiffcp \-c none \-,=% \-b CCD,X.tif CCD,X%1%.tif result.tif -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcmp (1), -.BR tiffmedian (1), -.BR tiffsplit (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffcrop.1 b/tiff/man/tiffcrop.1 deleted file mode 100755 index 0423fb2..0000000 --- a/tiff/man/tiffcrop.1 +++ /dev/null @@ -1,571 +0,0 @@ -.\" $Id: tiffcrop.1,v 1.7 2010-12-12 01:45:35 faxguy Exp $ -.\" tiffcrop -- a port of tiffcp.c extended to include extended processing of images -.\" -.\" Original code: -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.\" Additional code Copyright (c) 2006-2009 Richard Nolde -.\" Lasted Updated 9/2009 -.\" .if n .po 0 -.TH "TIFFCROP" "1" "December, 2008" "libtiff" "" -.SH "NAME" -tiffcrop \- select, copy, crop, convert, extract, and/or process one or more -.SM TIFF -files. -.SH "SYNOPSIS" -.B tiffcrop -[ -.I options -] -.I "src1.tif ... srcN.tif dst.tif" -.SH "DESCRIPTION" -.I Tiffcrop -processes one or more files created according -to the Tag Image File Format, Revision 6.0, specification -into one or more -.SM TIFF -file(s). -.I Tiffcrop -is most often used to extract portions of an image for processing -with bar code recognizer or OCR software when that software cannot -restrict the region of interest to a specific portion of the image -or to improve efficiency when the regions of interest must be rotated. -It can also be used to subdivide all or part of a processed image into -smaller sections and export individual images or sections of images -as separate files or separate images within one or more files derived -from the original input image or images. -.PP -The available functions can be grouped broadly into three classes: -.IP -Those that select individual images or sections of images from the input files. -The options \-N for sequences or lists of individual images in the input files, -\-Z for zones, \-z for regions, \-X and \-Y for fixed sized selections, -\-m for margins, \-U for units, and \-E for edge reference provide a variety of -ways to specify portions of the input image. -.IP -Those that allow the individual images or selections to be exported to one or -more output files in different groupings and control the organization of the -data in the output images. The options \-P for page size grouping, \-S for -subdivision into columns and rows and \-e for export mode options that produce -one or more files from each input image. The options \-r, \-s, \-t, \-w control -strip and tile format and sizes while \-B \-L \-c \-f modify the endian addressing -scheme, the compression options, and the bit fill sequence of images as they -are written. -.IP -Those that perform some action on each image that is selected from the input file. -The options include \-R for rotate, \-I for inversion of the photometric -interpretation and/or data values, and \-F to flip (mirror) the image horizontally -or vertically. -.PP - -Functions are applied to the input image(s) in the following order: -cropping, fixed area extraction, zone and region extraction, -inversion, mirroring, rotation. -.PP -Functions are applied to the output image(s) in the following order: -export mode options for grouping zones, regions, or images into -one or more files, -.I or -row and column divisions with output margins, -.I or -page size divisions with page orientation options. -.PP -Finally, strip, tile, byte order, output resolution, and compression options are -applied to all output images. -.PP -The output file(s) may be organized and compressed using a different -algorithm from the input files. -By default, -.I tiffcrop -will copy all the understood tags in a -.SM TIFF -directory of an input file to the associated directory in the output file. -Options can be used to force the resultant image to be written as strips -or tiles of data, respectively. -.PP -.I Tiffcrop -can be used to reorganize the storage characteristics of data -in a file, and to reorganize, extract, rotate, and otherwise -process the image data as specified at the same time whereas -tiffcp does not alter the image data within the file. -.PP -Using the options for selecting individual input images and the -options for exporting images and/or segments defined as zones or -regions of each input image, -.I tiffcrop -can perform the functions of tiffcp and tiffsplit in a single pass -while applying multiple operations to individual selections or images. -.PP -.SH "OPTIONS" -.TP -.B \-h -Display the syntax summary for tiffcrop. -.TP -.B \-v -Report the current version and last modification date for tiffcrop. -.TP -.B \-N odd|even|#,#\-#,#|last -Specify one or more series or range(s) of images within each file to process. -The words -.B odd -or -.B even -may be used to specify all odd or even numbered images counting from one. -Note that internally, TIFF images are numbered from zero rather than one -but since this convention is not obvious to most users, tiffcrop used 1 -to specifiy the first image in a multipage file. The word -.B last -may be used in place of a number in the sequence to indicate the -final image in the file without knowing how many images there are. -Ranges of images may be specified with a dash and multiple sets -can be indicated by joining them in a comma\-separated list. eg. use -.B \-N 1,5\-7,last -to process the 1st, 5th through 7th, and final image in the file. -.TP -.B \-E top|bottom|left|right -Specify the top, bottom, left, or right edge as the reference from -which to calcuate the width and length of crop regions or sequence -of postions for zones. When used with the \-e option for exporting -zones or regions, the reference edge determines how composite images -are arranged. Using \-E left or right causes successive zones or -regions to be merged horizontally whereas using \-E top or bottom -causes successive zones or regions to be arranged vertically. This -option has no effect on export layout when multiple zones or regions -are not being exported to composite images. Edges may be abbreviated -to the first letter. -.TP -.B \-e combined|divided|image|multiple|separate -Specify the export mode for images and selections from input images. -The final filename on the command line is considered to be the -destination file or filename stem for automatically generated -sequences of files. Modes may be abbreviated to the first letter. -.IP -combined All images and selections are written to a single file with -multiple selections from one image combined into a single image (default) -.IP -divided All images and selections are written to a single file -with each selection from one image written to a new image -.IP -image Each input image is written to a new file (numeric filename sequence) -with multiple selections from the image combined into one image -.IP -multiple Each input image is written to a new file (numeric filename sequence) -with each selection from the image written to a new image -.IP -separate Individual selections from each image are written to separate files -.TP -.B \-U in|cm|px -Specify the type of units to apply to dimensions for margins and -crop regions for input and output images. Inches or centimeters -are converted to pixels using the resolution unit specified in the -TIFF file (which defaults to inches if not specified in the IFD). -.TP -.B \-m #,#,#,# -Specify margins to be removed from the input image. The order must -be top, left, bottom, right with only commas separating the elements -of the list. Margins are scaled according to the current units and -removed before any other extractions are computed.. -.TP -.B \-X # -Set the horizontal (X\-axis) dimension of a region to extract relative to -the specified origin reference. If the origin is the top or bottom -edge, the X axis value will be assumed to start at the left edge. -.TP -.B \-Y # -Set the vertical (Y\-axis) dimension of a region to extract relative to -the specified origin reference. If the origin is the left or right -edge, the Y axis value will be assumed to start at the top. -.TP -.B \-Z #:#,#:# -Specify zones of the image designated as position X of Y equal sized portions -measured from the reference edge, eg 1:3 would be first third of the -image starting from the reference edge minus any margins specified -for the confining edges. Multiple zones can be specified as a comma -separated list but they must reference the same edge. To extract the -top quarter and the bottom third of an image you would use -.B \-Z 1:4,3:3. -.TP -.B \-z x1,y1,x2,y2: ... :xN,yN,xN+1,yN+1 -Specify a series of coordinates to define regions for processing and exporting. -The coordinates represent the top left and lower right corners of each region -in the current units, eg inch, cm, or pixels. Pixels are counted from one to -width or height and inches or cm are calculated from image resolution data. - -Each colon delimited series of four values represents the horizontal and vertical -offsets from the top and left edges of the image, regardless of the edge specified -with the \-E option. The first and third values represent the horizontal offsets of -the corner points from the left edge while the second and fourth values represent -the vertical offsets from the top edge. -.TP -.B \-F horiz|vert -Flip, ie mirror, the image or extracted region horizontally or vertically. -.TP -.B \-R 90|180|270 -Rotate the image or extracted region 90, 180, or 270 degrees clockwise. -.TP -.B \\-I [black|white|data|both] -Invert color space, eg dark to light for bilevel and grayscale images. -This can be used to modify negative images to positive or to correct -images that have the PHOTOMETRIC_INTERPRETATIN tag set incorrectly. -If the value is black or white, the PHOTOMETRIC_INTERPRETATION tag is set to -MinIsBlack or MinIsWhite, without altering the image data. If the argument -is data or both, the data values of the image are modified. Specifying both -inverts the data and the PHOTOMETRIC_INTERPRETATION tag, whereas using data -inverts the data but not the PHOTOMETRIC_INTERPRETATION tag. -No support for modifying the color space of color images in this release. -.TP -.B \-H # -Set the horizontal resolution of output images to # -expressed in the current units. -.TP -.B \-V # -Set the vertical resolution of the output images to # -expressed in the current units. -.TP -.B \-J # -Set the horizontal margin of an output page size to # -expressed in the current units when sectioning image into columns x rows -subimages using the \-S cols:rows option. -.TP -.B \-K # -Set the vertical margin of an output page size to # -expressed in the current units when sectioning image into columns x rows -submiages using the \-S cols:rows option. -.TP -.B \-O portrait|landscape|auto -Set the output orientation of the pages or sections. -Auto will use the arrangement that requires the fewest pages. -This option is only meaningful in conjunction with the -P -option to format an image to fit on a specific paper size. -.TP -.B \-P page -Format the output images to fit on page size paper. Use -\-P list to show the supported page sizes and dimensions. -You can define a custom page size by entering the width and length of the -page in the current units with the following format #.#x#.#. -.TP -.B \-S cols:rows -Divide each image into cols across and rows down equal sections. -.TP -.B \-B -Force output to be written with Big\-Endian byte order. -This option only has an effect when the output file is created or -overwritten and not when it is appended to. -.TP -.B \-C -Suppress the use of ``strip chopping'' when reading images -that have a single strip/tile of uncompressed data. -.TP -.B \-c -Specify the compression to use for data written to the output file: -.B none -for no compression, -.B packbits -for PackBits compression, -.B lzw -for Lempel\-Ziv & Welch compression, -.B jpeg -for baseline JPEG compression. -.B zip -for Deflate compression, -.B g3 -for CCITT Group 3 (T.4) compression, -and -.B g4 -for CCITT Group 4 (T.6) compression. -By default -.I tiffcrop -will compress data according to the value of the -.I Compression -tag found in the source file. -.IP -The -.SM CCITT -Group 3 and Group 4 compression algorithms can only -be used with bilevel data. -.IP -Group 3 compression can be specified together with several -T.4\-specific options: -.B 1d -for 1\-dimensional encoding, -.B 2d -for 2\-dimensional encoding, -and -.B fill -to force each encoded scanline to be zero\-filled so that the -terminating EOL code lies on a byte boundary. -Group 3\-specific options are specified by appending a ``:''\-separated -list to the ``g3'' option; e.g. -.B "\-c g3:2d:fill" -to get 2D\-encoded data with byte\-aligned EOL codes. -.IP -.SM LZW -compression can be specified together with a -.I predictor -value. -A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value -of 1 forces each scanline to be encoded without differencing. -LZW\-specific options are specified by appending a ``:''\-separated -list to the ``lzw'' option; e.g. -.B "\-c lzw:2" -for -.SM LZW -compression with horizontal differencing. -.TP -.B \-f -Specify the bit fill order to use in writing output data. -By default, -.I tiffcrop -will create a new file with the same fill order as the original. -Specifying -.B "\-f lsb2msb" -will force data to be written with the FillOrder tag set to -.SM LSB2MSB, -while -.B "\-f msb2lsb" -will force data to be written with the FillOrder tag set to -.SM MSB2LSB. -.TP -.B \-i -Ignore non\-fatal read errors and continue processing of the input file. -.TP -.B \-l -Specify the length of a tile (in pixels). -.I Tiffcrop -attempts to set the tile dimensions so -that no more than 8 kilobytes of data appear in a tile. -.TP -.B \-L -Force output to be written with Little\-Endian byte order. -This option only has an effect when the output file is created or -overwritten and not when it is appended to. -.TP -.B \-M -Suppress the use of memory\-mapped files when reading images. -.TP -.B \-p -Specify the planar configuration to use in writing image data -that has more than one sample per pixel. -By default, -.I tiffcrop -will create a new file with the same planar configuration as -the original. -Specifying -.B "\-p contig" -will force data to be written with multi\-sample data packed -together, while -.B "\-p separate" -will force samples to be written in separate planes. -.TP -.B \-r -Specify the number of rows (scanlines) in each strip of data -written to the output file. -By default (or when value -.B 0 -is specified), -.I tiffcrop -attempts to set the rows/strip that no more than 8 kilobytes of -data appear in a strip. If you specify the special value -.B \-1 -it will results in infinite number of the rows per strip. The entire image -will be the one strip in that case. -.TP -.B \-s -Force the output file to be written with data organized in strips -(rather than tiles). -.TP -.B \-t -Force the output file to be written with data organized in tiles -(rather than strips). -.TP -.B \-w -Specify the width of a tile (in pixels). -.I tiffcrop -attempts to set the tile dimensions so -that no more than 8 kilobytes of data appear in a tile. -.I tiffcrop -attempts to set the tile dimensions so -that no more than 8 kilobytes of data appear in a tile. -.TP -Debug and dump facility -.B \-D opt1:value1,opt2:value2,opt3:value3:opt4:value4 -Display program progress and/or dump raw data to non\-TIFF files. -Options include the following and must be joined as a comma -separated list. The use of this option is generally limited to -program debugging and development of future options. An equal sign -may be substituted for the colon in option:value pairs. -.IP -debug:N Display limited program progress indicators where larger N -increase the level of detail. -.IP -format:txt|raw Format any logged data as ASCII text or raw binary -values. ASCII text dumps include strings of ones and zeroes representing -the binary values in the image data plus identifying headers. -.IP -level:N Specify the level of detail presented in the dump files. -This can vary from dumps of the entire input or output image data to dumps -of data processed by specific functions. Current range of levels is 1 to 3. -.IP -input:full\-path\-to\-directory/input\-dumpname -.IP -output:full\-path\-to\-directory/output\-dumpname -.IP -When dump files are being written, each image will be written to a separate -file with the name built by adding a numeric sequence value to the dumpname -and an extension of .txt for ASCII dumps or .bin for binary dumps. - -The four debug/dump options are independent, though it makes little sense to -specify a dump file without specifying a detail level. -.IP -Note: Tiffcrop may be compiled with -DDEVELMODE to enable additional very - low level debug reporting. -.SH "EXAMPLES" -The following concatenates two files and writes the result using -.SM LZW -encoding: -.RS -.nf -tiffcrop \-c lzw a.tif b.tif result.tif -.fi -.RE -.PP -To convert a G3 1d\-encoded -.SM TIFF -to a single strip of G4\-encoded data the following might be used: -.RS -.nf -tiffcrop \-c g4 \-r 10000 g3.tif g4.tif -.fi -.RE -(1000 is just a number that is larger than the number of rows in -the source file.) - -To extract a selected set of images from a multi\-image TIFF file -use the \-N option described above. Thus, to copy the 1st and 3rd -images of image file "album.tif" to "result.tif": -.RS -.nf -tiffcrop \-N 1,3 album.tif result.tif -.fi -.RE -.PP -Invert a bilevel image scan of a microfilmed document and crop off margins of -0.25 inches on the left and right, 0.5 inch on the top, and 0.75 inch on the -bottom. From the remaining portion of the image, select the second and third -quarters, ie, one half of the area left from the center to each margin. -.RS -tiffcrop \-U in \-m 0.5,0.25,0.75,0.25 \-E left \-Z 2:4,3:4 \-I both MicrofilmNegative.tif MicrofilmPostiveCenter.tif -.fi -.RE -.PP -Extract only the final image of a large Architectural E sized -multipage TIFF file and rotate it 90 degrees clockwise while -reformatting the output to fit on tabloid sized sheets with one -quarter of an inch on each side: -.RS -tiffcrop \-N last \-R 90 \-O auto \-P tabloid \-U in \-J 0.25 \-K 0.25 \-H 300 \-V 300 Big\-PlatMap.tif BigPlatMap\-Tabloid.tif -.fi -.RE -The output images will have a specified resolution of 300 dpi in both -directions. The orientation of each page will be determined by whichever -choice requires the fewest pages. To specify a specific orientation, use -the portrait or landscape option. The paper size option does not resample -the image. It breaks each original image into a series of smaller images -that will fit on the target paper size at the specified resolution. -.fi -.RE -.PP -Extract two regions 2048 pixels wide by 2048 pixels high from each page of -a multi\-page input file and write each region to a separate output file. -.RS -tiffcrop \-U px \-z 1,1,2048,2048:1,2049,2048,4097 \-e separate CheckScans.tiff Check -.fi -.RE -The output file names will use the stem Check with a numeric suffix which is -incremented for each region of each image, eg Check\-001.tiff, Check\-002.tiff ... -Check\-NNN.tiff. To produce a unique file for each page of the input image -with one new image for each region of the input image on that page, change -the export option to \-e multiple. - -.SH "NOTES" -.PP -In general, bilevel, grayscale, palette and RGB(A) data with bit depths -from 1 to 32 bits should work in both interleaved and separate plane -formats. Unlike tiffcp, tiffcrop can read and write tiled images with -bits per sample that are not a multiple of 8 in both interleaved and -separate planar format. Floating point data types are supported at -bit depts of 16, 24, 32 and 64 bits per sample. -.PP -Not all images can be converted from one compression scheme to another. -Data with some photometric interpretations and/or bit depths are tied to -specific compression schemes and vice-versa, e.g. Group 3/4 compression -is only usable for bilevel data. JPEG compression is only usable on 8 -bit per sample data (or 12 bit if -.I LibTIFF -was compiled with 12 bit JPEG support). Support for OJPEG compressed -images is problematic at best. Since OJPEG compression is no longer -supported for writing images with LibTIFF, these images will be updated -to the newer JPEG compression when they are copied or processed. This -may cause the image to appear color shifted or distorted after conversion. -In some cases, it is possible to remove the original compression from -image data using the option -cnone. -.PP -Tiffcrop does not currently provide options to up or downsample data to -different bit depths or convert data from one photometric interpretation -to another, e.g. 16 bits per sample to 8 bits per sample or RGB to grayscale. -.PP -Tiffcrop is very loosely derived from code in -.I tiffcp -with extensive modifications and additions to support the selection of input -images and regions and the exporting of them to one or more output files in -various groupings. The image manipulation routines are entirely new and -additional ones may be added in the future. It will handle tiled images with -bit depths that are not a multiple of eight that tiffcp may refuse to read. -.PP -.I Tiffcrop -was designed to handle large files containing many moderate sized images -with memory usage that is independent of the number of images in the file. -In order to support compression modes that are not based on individual -scanlines, e.g. JPEG, it now reads images by strip or tile rather than by -indvidual scanlines. In addition to the memory required by the input and -output buffers associated with -.I LibTIFF -one or more buffers at least as large as the largest image to be read are -required. The design favors large volume document processing uses over -scientific or graphical manipulation of large datasets as might be found -in research or remote sensing scenarios. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcmp (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR tiffsplit (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ - diff --git a/tiff/man/tiffdither.1 b/tiff/man/tiffdither.1 deleted file mode 100755 index c313fd6..0000000 --- a/tiff/man/tiffdither.1 +++ /dev/null @@ -1,135 +0,0 @@ -.\" $Id: tiffdither.1,v 1.5 2013-03-06 03:35:09 tgl Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFDITHER 1 "September 20, 2005" "libtiff" -.SH NAME -tiffdither \- convert a greyscale image to bilevel using dithering -.SH SYNOPSIS -.B tiffdither -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I tiffdither -converts a single channel 8-bit greyscale image to a bilevel image -using Floyd-Steinberg error propagation with thresholding. -.SH OPTIONS -.TP -.B \-c -Specify the compression to use for data written to the output file: -.B none -for no compression, -.B packbits -for PackBits compression, -.B lzw -for Lempel-Ziv & Welch compression, -.B zip -for Deflate compression, -.B g3 -for CCITT Group 3 (T.4) compression, -and -.B g4 -for CCITT Group 4 (T.6) compression. -By default -.I tiffdither -will compress data according to the value of the -.I Compression -tag found in the source file. -.IP -The -.SM CCITT -Group 3 and Group 4 compression algorithms can only -be used with bilevel data. -.IP -Group 3 compression can be specified together with several -T.4-specific options: -.B 1d -for 1-dimensional encoding, -.B 2d -for 2-dimensional encoding, -and -.B fill -to force each encoded scanline to be zero-filled so that the -terminating EOL code lies on a byte boundary. -Group 3-specific options are specified by appending a ``:''-separated -list to the ``g3'' option; e.g. -.B "\-c g3:2d:fill" -to get 2D-encoded data with byte-aligned EOL codes. -.IP -.SM LZW -compression can be specified together with a -.I predictor -value. -A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value -of 1 forces each scanline to be encoded without differencing. -LZW-specific options are specified by appending a ``:''-separated -list to the ``lzw'' option; e.g. -.B "\-c lzw:2" -for -.SM LZW -compression with horizontal differencing. -.TP -.B \-f -Specify the bit fill order to use in writing output data. -By default, -.I tiffdither -will create a new file with the same fill order as the original. -Specifying -.B "\-f lsb2msb" -will force data to be written with the -.I Fill\%Order -tag set to -.SM LSB2MSB , -while -.B "\-f msb2lsb" -will force data to be written with the -.I Fill\%Order -tag set to -.SM MSB2LSB . -.TP -.B \-r -Make each strip have no more than the given number of rows. -.TP -.B \-t -Set the threshold value for dithering. -By default the threshold value is 128. -.SH NOTES -The dither algorithm is taken from the -.BR tiffmedian (1) -program (written by Paul Heckbert). -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR fax2tiff (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiff2bw (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffdump.1 b/tiff/man/tiffdump.1 deleted file mode 100755 index 076f9ff..0000000 --- a/tiff/man/tiffdump.1 +++ /dev/null @@ -1,81 +0,0 @@ -.\" $Id: tiffdump.1,v 1.5 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFDUMP 1 "October 23, 2005" "libtiff" -.SH NAME -tiffdump \- print verbatim information about -.SM TIFF -files -.SH SYNOPSIS -.B tiffdump -[ -.I options -] -.I "name \&..." -.SH DESCRIPTION -.I tiffdump -displays directory information from files created according -to the Tag Image File Format, Revision 6.0. -The header of each -.SM TIFF -file (magic number, version, and first directory offset) -is displayed, followed by the tag contents of each directory in the file. -For each tag, the name, data type, count, and value(s) is displayed. -When the symbolic name for a tag or data type is known, the symbolic -name is displayed followed by it's numeric (decimal) value. -Tag values are displayed enclosed in ``<>'' characters immediately -preceded by the value of the count field. -For example, an -.I ImageWidth -tag might be displayed as ``ImageWidth (256) SHORT (3) 1<800>''. -.PP -.I tiffdump -is particularly useful for investigating the contents of -.SM TIFF -files that -.I libtiff -does not understand. -.SH OPTIONS -.TP -.B \-h -Force numeric data to be printed in hexadecimal rather than the -default decimal. -.TP -.BI \-m " items" -Change the number of indirect data items that are printed. By default, this -will be 24. -.TP -.BI \-o " offset" -Dump the contents of the -.SM IFD -at the a particular file offset. -The file offset may be specified using the usual C-style syntax; -i.e. a leading ``0x'' for hexadecimal and a leading ``0'' for octal. -.SH "SEE ALSO" -.BR tiffinfo (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffgt.1 b/tiff/man/tiffgt.1 deleted file mode 100755 index 680a49a..0000000 --- a/tiff/man/tiffgt.1 +++ /dev/null @@ -1,245 +0,0 @@ -.\" $Id: tiffgt.1,v 1.4 2006-04-20 12:17:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFGT 1 "September 20, 2005" "libtiff" -.SH NAME -tiffgt \- display an image stored in a -.SM TIFF -file (Silicon Graphics version) -.SH SYNOPSIS -.B tiffgt -[ -.I options -] -.I "input.tif ..." -.SH DESCRIPTION -.I tiffgt -displays one or more images stored using the -Tag Image File Format, Revision 6.0. -Each image is placed in a fixed size window that the -user must position on the display (unless configured -otherwise through X defaults). -If the display has fewer than 24 bitplanes, or if the -image does not warrant full color, then -.SM RGB -color values are mapped to the closest values that exist in -the colormap (this is done using the -.I rgbi -routine found in the graphics utility library -.BR \-lgutil .) -.PP -.I tiffgt -correctly handles files with any of the following characteristics: -.sp .5 -.in +0.5i -.ta \w'\fIPhotometricInterpretation\fP 'u -.nf -\fIBitsPerSample\fP 1, 2, 4, 8, 16 -\fISamplesPerPixel\fP 1, 3, 4 (the 4th sample is ignored) -\fIPhotometricInterpretation\fP 0 (min-is-white), 1 (min-is-black), 2 (RGB), 3 (palette), 6 (YCbCr) -\fIPlanarConfiguration\fP 1 (contiguous), 2 (separate) -\fIOrientation\fP 1 (top-left), 4 (bottom-left) -.fi -.in -0.5i -.sp .5 -Data may be organized as strips or tiles and may be -compressed with any of the compression algorithms supported -by the -.IR libtiff (3) -library. -.PP -For palette images (\c -.IR PhotometricInterpretation =3), -.I tiffgt -inspects the colormap values and assumes either 16-bit -or 8-bit values according to the maximum value. -That is, if no colormap entry greater than 255 is found, -.I tiffgt -assumes the colormap has only 8-bit values; otherwise -it assumes 16-bit values. -This inspection is done to handle old images written by -previous (incorrect) versions of -.IR libtiff . -.PP -.I tiffgt -can be used to display multiple images one-at-a-time. -The left mouse button switches the display to the first image in the -.I next -file in the list of files specified on the command line. -The right mouse button switches to the first image in the -.I previous -file in the list. -The middle mouse button causes the first image in the first file -specified on the command line to be displayed. -In addition the following keyboard commands are recognized: -.TP -.B b -Use a -.I PhotometricInterpretation -of MinIsBlack in displaying the current image. -.TP -.B l -Use a -.I FillOrder -of lsb-to-msb in decoding the current image. -.TP -.B m -Use a -.I FillOrder -of msb-to-lsb in decoding the current image. -.TP -.B c -Use a colormap visual to display the current image. -.TP -.B r -Use a true color (24-bit RGB) visual to display the current image. -.TP -.B w -Use a -.I PhotometricInterpretation -of MinIsWhite in displaying the current image. -.TP -.B W -Toggle (enable/disable) display of warning messages from the -.SM TIFF -library when decoding images. -.TP -.B E -Toggle (enable/disable) display of error messages from the -.SM TIFF -library when decoding images. -.TP -.B z -Reset all parameters to their default settings (\c -.IR FillOrder , -.IR PhotometricInterpretation , -handling of warnings and errors). -.TP -.B PageUp -Display the previous image in the current file or the last -image in the previous file. -.TP -.B PageDown -Display the next image in the current file or the first image -in the next file. -.TP -.B Home -Display the first image in the current file. -.TP -.B End -Display the last image in the current file (unimplemented). -.SH OPTIONS -.TP -.B \-c -Force image display in a colormap window. -.TP -.B \-d -Specify an image to display by directory number. -By default the first image in the file is displayed. -Directories are numbered starting at zero. -.TP -.B \-e -Enable reporting of error messages from the -.SM TIFF -library. -By default -.I tiffgt -silently ignores images that cannot be read. -.TP -.B \-f -Force -.I tiffgt -to run as a foreground process. -By default -.I tiffgt -will place itself in the background once it has opened the -requested image file. -.TP -.B \-l -Force the presumed bit ordering to be -.SM LSB -to -.SM MSB. -.TP -.B \-m -Force the presumed bit ordering to be -.SM MSB -to -.SM LSB. -.TP -.B \-o -Specify an image to display by directory offset. -By default the first image in the file is displayed. -Directories offsets may be specified using C-style syntax; -i.e. a leading ``0x'' for hexadecimal and a leading ``0'' for octal. -.TP -.B \-p -Override the value of the -.I PhotometricInterpretation -tag; the parameter may be one of: -.BR miniswhite , -.BR minisblack , -.BR rgb , -.BR palette , -.BR mask , -.BR separated , -.BR ycbcr , -and -.BR cielab . -.TP -.B \-r -Force image display in a full color window. -.TP -.B \-s -Stop on the first read error. -By default all errors in the input data are ignored and -.I tiffgt -does it's best to display as much of an image as possible. -.TP -.B \-w -Enable reporting of warning messages from the -.SM TIFF -library. -By default -.I tiffgt -ignores warning messages generated when reading an image. -.TP -.B \-v -Place information in the title bar describing -what type of window (full color or colormap) is being -used, the name of the input file, and the directory -index of the image (if non-zero). -By default, the window type is not shown in the title bar. -.SH BUGS -Images wider and taller than the display are silently truncated to avoid -crashing old versions of the window manager. -.SH "SEE ALSO" -.BR tiffdump (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffinfo.1 b/tiff/man/tiffinfo.1 deleted file mode 100755 index 2d57375..0000000 --- a/tiff/man/tiffinfo.1 +++ /dev/null @@ -1,88 +0,0 @@ -.\" $Id: tiffinfo.1,v 1.2 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFINFO 1 "November 2, 2005" "libtiff" -.SH NAME -tiffinfo \- print information about -.SM TIFF -files -.SH SYNOPSIS -.B tiffinfo -[ -.I options -] -.I "input.tif \&..." -.SH DESCRIPTION -.I Tiffinfo -displays information about files created according -to the Tag Image File Format, Revision 6.0. -By default, the contents of each -.SM TIFF -directory in each file -is displayed, with the value of each tag shown symbolically -(where sensible). -.SH OPTIONS -.TP -.B \-c -Display the colormap and color/gray response curves, if present. -.TP -.B \-D -In addition to displaying the directory tags, -read and decompress all the data in each image (but not display it). -.TP -.B \-d -In addition to displaying the directory tags, -print each byte of decompressed data in hexadecimal. -.TP -.B \-j -Display any \s-2JPEG\s0-related tags that are present. -.TP -.B \-o -Set the initial -.SM TIFF -directory according to the specified file offset. -The file offset may be specified using the usual C-style syntax; -i.e. a leading ``0x'' for hexadecimal and a leading ``0'' for octal. -.TP -.B \-s -Display the offsets and byte counts for each data strip in a directory. -.TP -.B \-z -Enable strip chopping when reading image data. -.TP -.B \-# -Set the initial -.SM TIFF -directory to -.IR # . -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffcp (1), -.BR tiffcmp (1), -.BR tiffmedian (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffmedian.1 b/tiff/man/tiffmedian.1 deleted file mode 100755 index c584b97..0000000 --- a/tiff/man/tiffmedian.1 +++ /dev/null @@ -1,112 +0,0 @@ -.\" $Id: tiffmedian.1,v 1.3 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1990-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFMEDIAN 1 "November 2, 2005" "libtiff" -.SH NAME -tiffmedian \- apply the median cut algorithm to data in a -.SM TIFF -file -.SH SYNOPSIS -.B tiffmedian -[ -.I options -] -.I input.tif -.I output.tif -.SH DESCRIPTION -.I tiffmedian -applies the median cut algorithm to an -.SM RGB -image in -.I input.tif -to generate a palette image that is written to -.IR output.tif . -The generated colormap has, by default, 256 entries. -The image data is quantized by mapping each -pixel to the closest color values in the colormap. -.SH OPTIONS -.TP -.B \-c -Specify the compression to use for data written to the output file: -.B none -for no compression, -.B packbits -for PackBits compression, -.B lzw -for Lempel-Ziv & Welch compression, -and -.B zip -for Deflate compression. -By default -.I tiffmedian -will compress data according to the value of the -.I Compression -tag found in the source file. -.IP -.SM LZW -compression can be specified together with a -.I predictor -value. -A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value -of 1 forces each scanline to be encoded without differencing. -LZW-specific options are specified by appending a ``:''-separated -list to the ``lzw'' option; e.g. -.B "\-c lzw:2" -for -.SM LZW -compression with horizontal differencing. -.TP -.B \-C -Specify the number of entries to use in the generated colormap. -By default all 256 entries/colors are used. -.TP -.B \-f -Apply Floyd-Steinberg dithering before selecting a colormap entry. -.TP -.B \-r -Specify the number of rows (scanlines) in each strip of data -written to the output file. -By default, -.I tiffmedian -attempts to set the rows/strip -that no more than 8 kilobytes of data appear in a strip. -.SH NOTES -This program is derived from Paul Heckbert's -.I median -program. -.SH "SEE ALSO" -.BR pal2rgb (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffcmp (1), -.BR libtiff (3TIFF) -.PP -.BR "Color Image Quantization for Frame Buffer Display", -Paul Heckbert, SIGGRAPH proceedings, 1982, pp. 297-307. -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffset.1 b/tiff/man/tiffset.1 deleted file mode 100755 index 516934d..0000000 --- a/tiff/man/tiffset.1 +++ /dev/null @@ -1,99 +0,0 @@ -.\" $Id: tiffset.1,v 1.6 2012-12-04 03:02:37 bfriesen Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSET 1 "December 3, 2012" "libtiff" -.SH NAME -tiffset \- set or unset a field in a -.SM TIFF -header -.SH SYNOPSIS -.B tiffset -[ -.I options -] -.I filename.tif -.SH DESCRIPTION -.I Tiffset -sets the value of a -.SM TIFF -header to a specified value or removes an existing setting. -.SH OPTIONS -.TP -.BI \-d " dirnumber" -change the current directory (starting at 0). -.TP -.BI \-s " tagnumber" "\fR [\fP" " count" "\fR ]\fP" " value ..." -Set the value of the named tag to the value or values specified. -.TP -.BI \-sd " diroffset" -change the current directory by offset. -.TP -.BI \-sf " tagnumber filename" -Set the value of the tag to the contents of filename. This option is -supported for ASCII tags only. -.TP -.BI \-u " tagnumber" -Unset the tag. -.SH EXAMPLES -The following example sets the image description tag (270) of a.tif to -the contents of the file descrip: -.RS -.nf -tiffset \-sf 270 descrip a.tif -.fi -.RE -.PP -The following example sets the artist tag (315) of a.tif to the string -``Anonymous'': -.RS -.nf -tiffset \-s 315 Anonymous a.tif -.fi -.RE -.PP -This example sets the resolution of the file a.tif to 300 dpi: -.RS -.nf -tiffset \-s 296 2 a.tif -tiffset \-s 282 300.0 a.tif -tiffset \-s 283 300.0 a.tif -.fi -.RE -.PP -Set the photometric interpretation of the third page of a.tif to -min-is-black (ie. inverts it): -.RS -.nf -tiffset -d 2 -s 262 1 a.tif -.fi -.RE -.SH "SEE ALSO" -.BR tiffdump (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffsplit.1 b/tiff/man/tiffsplit.1 deleted file mode 100755 index 411ebf4..0000000 --- a/tiff/man/tiffsplit.1 +++ /dev/null @@ -1,69 +0,0 @@ -.\" $Id: tiffsplit.1,v 1.6 2009-08-24 19:13:40 bfriesen Exp $ -.\" -.\" Copyright (c) 1992-1997 Sam Leffler -.\" Copyright (c) 1992-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSPLIT 1 "September 20, 2005" "libtiff" -.SH NAME -tiffsplit \- split a multi-image -.SM TIFF -into single-image -.SM TIFF -files -.SH SYNOPSIS -.B tiffsplit -.I src.tif -[ -.I prefix -] -.SH DESCRIPTION -.I tiffsplit -takes a multi-directory (page) -.SM TIFF -file and creates one or more single-directory (page) -.SM TIFF -files from it. -The output files are given names created by concatenating -a prefix, a lexically ordered -suffix in the range [\fIaaa\fP-\fIzzz\fP], the suffix -.I .tif -(e.g. -.IR xaaa.tif , -.IR xaab.tif , -.IR ... , -.IR xzzz.tif ). -If a prefix is not specified on the command line, -the default prefix of -.I x -is used. -.SH OPTIONS -None. -.SH BUGS -Only a select set of ``known tags'' is copied when splitting. -.SH "SEE ALSO" -.BR tiffcp (1), -.BR tiffinfo (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/man/tiffsv.1 b/tiff/man/tiffsv.1 deleted file mode 100755 index 206df56..0000000 --- a/tiff/man/tiffsv.1 +++ /dev/null @@ -1,142 +0,0 @@ -.\" $Id: tiffsv.1,v 1.3 2005-11-02 11:07:19 dron Exp $ -.\" -.\" Copyright (c) 1988-1997 Sam Leffler -.\" Copyright (c) 1991-1997 Silicon Graphics, Inc. -.\" -.\" Permission to use, copy, modify, distribute, and sell this software and -.\" its documentation for any purpose is hereby granted without fee, provided -.\" that (i) the above copyright notices and this permission notice appear in -.\" all copies of the software and related documentation, and (ii) the names of -.\" Sam Leffler and Silicon Graphics may not be used in any advertising or -.\" publicity relating to the software without the specific, prior written -.\" permission of Sam Leffler and Silicon Graphics. -.\" -.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -.\" -.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -.\" OF THIS SOFTWARE. -.\" -.if n .po 0 -.TH TIFFSV 1 "September 20, 2005" "libtiff" -.SH NAME -tiffsv \- save an image from the framebuffer in a -.SM TIFF -file (Silicon Graphics version) -.SH SYNOPSIS -.B tiffsv -[ -.I options -] -.I output.tif -[ -.I "x1 x2 y1 y2" -] -.SH DESCRIPTION -.I tiffsv -saves all or part of the framebuffer in a file using the -Tag Image File Format, Revision 6.0. -By default, the image is saved with data samples packed (\c -.IR PlanarConfiguration =1), -compressed with the Lempel-Ziv & Welch algorithm (\c -.IR Compression =5), -and with each strip no more than 8 kilobytes. -These characteristics can be overridden, or explicitly specified -with the options described below. -.SH OPTIONS -.TP -.B \-b -Save the image as a greyscale image -as if it were processed by -.IR tiff2bw (1). -This option is included for compatibility with the standard -.IR scrsave (6D) -program. -.TP -.B \-c -Specify the compression to use for data written to the output file: -.B none -for no compression, -.B packbits -for PackBits compression, -.B jpeg -for baseline JPEG compression, -.B zip -for Deflate compression, -and -.B lzw -for Lempel-Ziv & Welch compression (default). -.IP -.SM LZW -compression can be specified together with a -.I predictor -value. -A predictor value of 2 causes -each scanline of the output image to undergo horizontal -differencing before it is encoded; a value -of 1 forces each scanline to be encoded without differencing. -LZW-specific options are specified by appending a ``:''-separated -list to the ``lzw'' option; e.g. -.B "\-c lzw:2" -for -.SM LZW -compression with horizontal differencing. -.TP -.B \-p -Specify the planar configuration to use in writing image data. -By default, -.I tiffsv -will create a new file with the data samples packed contiguously. -Specifying -.B "\-p contig" -will force data to be written with multi-sample data packed -together, while -.B "\-p separate" -will force samples to be written in separate planes. -.TP -.B \-r -Specify the number of rows (scanlines) in each strip of data -written to the output file. -By default, -.I tiffsv -attempts to set the rows/strip -that no more than 8 kilobytes of data appear in a strip. -.SH NOTE -Except for the use of -.SM TIFF, -this program is equivalent to the standard -.I scrsave -program. -This means, for example, that you can use it in conjunction with -the standard -.IR icut -program simply by creating a link called -.IR scrsave , -or by creating a shell script called -.I scrsave -that invokes -.I tiffgt -with the appropriate options. -.SH BUGS -If data are saved compressed and in separate planes, then the -rows in each strip is silently set to one to avoid limitations -in the -.BR libtiff (3TIFF) -library. -.SH "SEE ALSO" -.BR scrsave (6D) -.BR pal2rgb (1), -.BR tiffdump (1), -.BR tiffgt (1), -.BR tiffinfo (1), -.BR tiffcp (1), -.BR tiffmedian (1), -.BR libtiff (3TIFF) -.PP -Libtiff library home page: -.BR http://www.remotesensing.org/libtiff/ diff --git a/tiff/nmake.opt b/tiff/nmake.opt deleted file mode 100755 index c136c36..0000000 --- a/tiff/nmake.opt +++ /dev/null @@ -1,218 +0,0 @@ -# $Id: nmake.opt,v 1.18 2006-06-07 16:33:45 dron Exp $ -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Compile time parameters for MS Visual C++ compiler. -# You may edit this file to specify building options. - -# -###### Edit the following lines to choose a feature set you need. ####### -# - -# -# Select WINMODE_CONSOLE to build a library which reports errors to stderr, or -# WINMODE_WINDOWED to build such that errors are reported via MessageBox(). -# -WINMODE_CONSOLE = 1 -#WINMODE_WINDOWED = 1 - -# -# Comment out the following lines to disable internal codecs. -# -# Support for CCITT Group 3 & 4 algorithms -CCITT_SUPPORT = 1 -# Support for Macintosh PackBits algorithm -PACKBITS_SUPPORT = 1 -# Support for LZW algorithm -LZW_SUPPORT = 1 -# Support for ThunderScan 4-bit RLE algorithm -THUNDER_SUPPORT = 1 -# Support for NeXT 2-bit RLE algorithm -NEXT_SUPPORT = 1 -# Support for LogLuv high dynamic range encoding -LOGLUV_SUPPORT = 1 - -# -# Uncomment and edit following lines to enable JPEG support. -# -#JPEG_SUPPORT = 1 -#JPEGDIR = d:/projects/jpeg-6b -#JPEG_INCLUDE = -I$(JPEGDIR) -#JPEG_LIB = $(JPEGDIR)/Release/jpeg.lib - -# -# Uncomment and edit following lines to enable ZIP support -# (required for Deflate compression and Pixar log-format) -# -#ZIP_SUPPORT = 1 -#ZLIBDIR = d:/projects/zlib-1.2.1 -#ZLIB_INCLUDE = -I$(ZLIBDIR) -#ZLIB_LIB = $(ZLIBDIR)/zlib.lib - -# -# Uncomment and edit following lines to enable ISO JBIG support -# -#JBIG_SUPPORT = 1 -#JBIGDIR = d:/projects/jbigkit -#JBIG_INCLUDE = -I$(JBIGDIR)/libjbig -#JBIG_LIB = $(JBIGDIR)/libjbig/jbig.lib - -# -# Uncomment following line to enable Pixar log-format algorithm -# (Zlib required). -# -#PIXARLOG_SUPPORT = 1 - -# -# Comment out the following lines to disable strip chopping -# (whether or not to convert single-strip uncompressed images to mutiple -# strips of specified size to reduce memory usage). Default strip size -# is 8192 bytes, it can be configured via the STRIP_SIZE_DEFAULT parameter -# -STRIPCHOP_SUPPORT = 1 -STRIP_SIZE_DEFAULT = 8192 - -# -# Comment out the following lines to disable treating the fourth sample with -# no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA -# files but don't mark the alpha properly. -# -EXTRASAMPLE_AS_ALPHA_SUPPORT = 1 - -# -# Comment out the following lines to disable picking up YCbCr subsampling -# info from the JPEG data stream to support files lacking the tag. -# See Bug 168 in Bugzilla, and JPEGFixupTestSubsampling() for details. -# -CHECK_JPEG_YCBCR_SUBSAMPLING = 1 - -# -####################### Compiler related options. ####################### -# - -# -# Pick debug or optimized build flags. We default to an optimized build -# with no debugging information. -# NOTE: /EHsc option required if you want to build the C++ stream API -# -OPTFLAGS = /Ox /MD /EHsc /W3 /D_CRT_SECURE_NO_DEPRECATE -#OPTFLAGS = /Zi - -# -# Uncomment following line to enable using Windows Common RunTime Library -# instead of Windows specific system calls. See notes on top of tif_unix.c -# module for details. -# -USE_WIN_CRT_LIB = 1 - -# Compiler specific options. You may probably want to adjust compilation -# parameters in CFLAGS variable. Refer to your compiler documentation -# for the option reference. -# -MAKE = nmake /nologo -CC = cl /nologo -CXX = cl /nologo -AR = lib /nologo -LD = link /nologo - -CFLAGS = $(OPTFLAGS) $(INCL) $(EXTRAFLAGS) -CXXFLAGS = $(OPTFLAGS) $(INCL) $(EXTRAFLAGS) -EXTRAFLAGS = -LIBS = - -# Name of the output shared library -DLLNAME = libtiff.dll - -# -########### There is nothing to edit below this line normally. ########### -# - -# Set the native cpu bit order -EXTRAFLAGS = -DFILLODER_LSB2MSB $(EXTRAFLAGS) - -!IFDEF WINMODE_WINDOWED -EXTRAFLAGS = -DTIF_PLATFORM_WINDOWED $(EXTRAFLAGS) -LIBS = user32.lib $(LIBS) -!ELSE -EXTRAFLAGS = -DTIF_PLATFORM_CONSOLE $(EXTRAFLAGS) -!ENDIF - -# Codec stuff -!IFDEF CCITT_SUPPORT -EXTRAFLAGS = -DCCITT_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF PACKBITS_SUPPORT -EXTRAFLAGS = -DPACKBITS_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF LZW_SUPPORT -EXTRAFLAGS = -DLZW_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF THUNDER_SUPPORT -EXTRAFLAGS = -DTHUNDER_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF NEXT_SUPPORT -EXTRAFLAGS = -DNEXT_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF LOGLUV_SUPPORT -EXTRAFLAGS = -DLOGLUV_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF JPEG_SUPPORT -LIBS = $(LIBS) $(JPEG_LIB) -EXTRAFLAGS = -DJPEG_SUPPORT -DOJPEG_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF ZIP_SUPPORT -LIBS = $(LIBS) $(ZLIB_LIB) -EXTRAFLAGS = -DZIP_SUPPORT $(EXTRAFLAGS) -!IFDEF PIXARLOG_SUPPORT -EXTRAFLAGS = -DPIXARLOG_SUPPORT $(EXTRAFLAGS) -!ENDIF -!ENDIF - -!IFDEF JBIG_SUPPORT -LIBS = $(LIBS) $(JBIG_LIB) -EXTRAFLAGS = -DJBIG_SUPPORT $(EXTRAFLAGS) -!ENDIF - -!IFDEF STRIPCHOP_SUPPORT -EXTRAFLAGS = -DSTRIPCHOP_DEFAULT=TIFF_STRIPCHOP -DSTRIP_SIZE_DEFAULT=$(STRIP_SIZE_DEFAULT) $(EXTRAFLAGS) -!ENDIF - -!IFDEF EXTRASAMPLE_AS_ALPHA_SUPPORT -EXTRAFLAGS = -DDEFAULT_EXTRASAMPLE_AS_ALPHA $(EXTRAFLAGS) -!ENDIF - -!IFDEF CHECK_JPEG_YCBCR_SUBSAMPLING -EXTRAFLAGS = -DCHECK_JPEG_YCBCR_SUBSAMPLING $(EXTRAFLAGS) -!ENDIF - -!IFDEF USE_WIN_CRT_LIB -EXTRAFLAGS = -DAVOID_WIN32_FILEIO $(EXTRAFLAGS) -!ELSE -EXTRAFLAGS = -DUSE_WIN32_FILEIO $(EXTRAFLAGS) -!ENDIF diff --git a/tiff/port/Makefile.am b/tiff/port/Makefile.am deleted file mode 100755 index 94504fd..0000000 --- a/tiff/port/Makefile.am +++ /dev/null @@ -1,31 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -EXTRA_DIST = Makefile.vc libport.h - -noinst_LTLIBRARIES = libport.la -libport_la_SOURCES = dummy.c libport.h -libport_la_LIBADD = @LTLIBOBJS@ - diff --git a/tiff/port/Makefile.in b/tiff/port/Makefile.in deleted file mode 100755 index ab86855..0000000 --- a/tiff/port/Makefile.in +++ /dev/null @@ -1,649 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; 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-} - diff --git a/tiff/port/getopt.c b/tiff/port/getopt.c deleted file mode 100755 index 6eff8ee..0000000 --- a/tiff/port/getopt.c +++ /dev/null @@ -1,125 +0,0 @@ -/* $Id: getopt.c,v 1.3 2009-01-22 20:53:07 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1987, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95"; -__RCSID("$NetBSD: getopt.c,v 1.26 2003/08/07 16:43:40 agc Exp $"); -#endif - -#include -#include -#include "libport.h" - -int opterr = 1, /* if error message should be printed */ - optind = 1, /* index into parent argv vector */ - optopt, /* character checked for validity */ - optreset; /* reset getopt */ -char *optarg; /* argument associated with option */ - -#define BADCH (int)'?' -#define BADARG (int)':' -#define EMSG "" - -/* - * getopt -- - * Parse argc/argv argument vector. - */ -int -getopt(int argc, char * const argv[], const char *optstring) -{ - static char *place = EMSG; /* option letter processing */ - char *oli; /* option letter list index */ - - if (optreset || *place == 0) { /* update scanning pointer */ - optreset = 0; - place = argv[optind]; - if (optind >= argc || *place++ != '-') { - /* Argument is absent or is not an option */ - place = EMSG; - return (-1); - } - optopt = *place++; - if (optopt == '-' && *place == 0) { - /* "--" => end of options */ - ++optind; - place = EMSG; - return (-1); - } - if (optopt == 0) { - /* Solitary '-', treat as a '-' option - if the program (eg su) is looking for it. */ - place = EMSG; - if (strchr(optstring, '-') == NULL) - return -1; - optopt = '-'; - } - } else - optopt = *place++; - - /* See if option letter is one the caller wanted... */ - if (optopt == ':' || (oli = strchr(optstring, optopt)) == NULL) { - if (*place == 0) - ++optind; - if (opterr && *optstring != ':') - (void)fprintf(stderr, - "unknown option -- %c\n", optopt); - return (BADCH); - } - - /* Does this option need an argument? */ - if (oli[1] != ':') { - /* don't need argument */ - optarg = NULL; - if (*place == 0) - ++optind; - } else { - /* Option-argument is either the rest of this argument or the - entire next argument. */ - if (*place) - optarg = place; - else if (argc > ++optind) - optarg = argv[optind]; - else { - /* option-argument absent */ - place = EMSG; - if (*optstring == ':') - return (BADARG); - if (opterr) - (void)fprintf(stderr, - "option requires an argument -- %c\n", - optopt); - return (BADCH); - } - place = EMSG; - ++optind; - } - return (optopt); /* return option letter */ -} diff --git a/tiff/port/lfind.c b/tiff/port/lfind.c deleted file mode 100755 index 22d9798..0000000 --- a/tiff/port/lfind.c +++ /dev/null @@ -1,62 +0,0 @@ -/* $Id: lfind.c,v 1.4 2007-01-15 18:40:39 mloskot Exp $ */ - -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Roger L. Snyder. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -static char sccsid[] = "@(#)lsearch.c 8.1 (Berkeley) 6/4/93"; -__RCSID("$NetBSD: lsearch.c,v 1.2 2005/07/06 15:47:15 drochner Exp $"); -#endif - -#ifdef _WIN32_WCE -# include -#else -# include -#endif - -#ifndef NULL -# define NULL 0 -#endif - -void * -lfind(const void *key, const void *base, size_t *nmemb, size_t size, - int(*compar)(const void *, const void *)) -{ - char *element, *end; - - end = (char *)base + *nmemb * size; - for (element = (char *)base; element < end; element += size) - if (!compar(element, key)) /* key found */ - return element; - - return NULL; -} diff --git a/tiff/port/libport.h b/tiff/port/libport.h deleted file mode 100755 index 802f478..0000000 --- a/tiff/port/libport.h +++ /dev/null @@ -1,51 +0,0 @@ -/* $Id: libport.h,v 1.2 2009-11-02 14:44:13 bfriesen Exp $ */ - -/* - * Copyright (c) 2009 Frank Warmerdam - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _LIBPORT_ -#define _LIBPORT_ - -int getopt(int argc, char * const argv[], const char *optstring); -extern char *optarg; -extern int opterr; -extern int optind; -extern int optopt; - -int strcasecmp(const char *s1, const char *s2); - -#ifndef HAVE_GETOPT -# define HAVE_GETOPT 1 -#endif - -#if 0 -unsigned long strtoul(const char *nptr, char **endptr, int base); -#endif - -#if 0 -void * -lfind(const void *key, const void *base, size_t *nmemb, size_t size, - int(*compar)(const void *, const void *)); -#endif - -#endif /* ndef _LIBPORT_ */ diff --git a/tiff/port/strcasecmp.c b/tiff/port/strcasecmp.c deleted file mode 100755 index 1ff4312..0000000 --- a/tiff/port/strcasecmp.c +++ /dev/null @@ -1,51 +0,0 @@ -/* $Id: strcasecmp.c,v 1.3 2009-01-22 20:53:07 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1987, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -static char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93"; -__RCSID("$NetBSD: strcasecmp.c,v 1.16 2003/08/07 16:43:49 agc Exp $"); -#endif - -#include -#include -#include "libport.h" - -int -strcasecmp(const char *s1, const char *s2) -{ - const unsigned char *us1 = (const unsigned char *)s1, - *us2 = (const unsigned char *)s2; - - while (tolower(*us1) == tolower(*us2++)) - if (*us1++ == '\0') - return (0); - return (tolower(*us1) - tolower(*--us2)); -} diff --git a/tiff/port/strtoul.c b/tiff/port/strtoul.c deleted file mode 100755 index 84ab215..0000000 --- a/tiff/port/strtoul.c +++ /dev/null @@ -1,109 +0,0 @@ -/* $Id: strtoul.c,v 1.2 2005-07-07 16:34:06 dron Exp $ */ - -/* - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -static char sccsid[] = "@(#)strtoul.c 8.1 (Berkeley) 6/4/93"; -__RCSID("$NetBSD: strtoul.c,v 1.16 2003/08/07 16:43:45 agc Exp $"); -#endif - -#include -#include -#include -#include - -/* - * Convert a string to an unsigned long integer. - * - * Ignores `locale' stuff. Assumes that the upper and lower case - * alphabets and digits are each contiguous. - */ -unsigned long -strtoul(const char *nptr, char **endptr, int base) -{ - const char *s; - unsigned long acc, cutoff; - int c; - int neg, any, cutlim; - - /* - * See strtol for comments as to the logic used. - */ - s = nptr; - do { - c = (unsigned char) *s++; - } while (isspace(c)); - if (c == '-') { - neg = 1; - c = *s++; - } else { - neg = 0; - if (c == '+') - c = *s++; - } - if ((base == 0 || base == 16) && - c == '0' && (*s == 'x' || *s == 'X')) { - c = s[1]; - s += 2; - base = 16; - } - if (base == 0) - base = c == '0' ? 8 : 10; - - cutoff = ULONG_MAX / (unsigned long)base; - cutlim = (int)(ULONG_MAX % (unsigned long)base); - for (acc = 0, any = 0;; c = (unsigned char) *s++) { - if (isdigit(c)) - c -= '0'; - else if (isalpha(c)) - c -= isupper(c) ? 'A' - 10 : 'a' - 10; - else - break; - if (c >= base) - break; - if (any < 0) - continue; - if (acc > cutoff || (acc == cutoff && c > cutlim)) { - any = -1; - acc = ULONG_MAX; - errno = ERANGE; - } else { - any = 1; - acc *= (unsigned long)base; - acc += c; - } - } - if (neg && any > 0) - acc = -acc; - if (endptr != 0) - /* LINTED interface specification */ - *endptr = (char *)(any ? s - 1 : nptr); - return (acc); -} diff --git a/tiff/port/strtoull.c b/tiff/port/strtoull.c deleted file mode 100755 index fb7739c..0000000 --- a/tiff/port/strtoull.c +++ /dev/null @@ -1,116 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include -#include -#include -#include - -/* - * Convert a string to an unsigned long long integer. - * - * Assumes that the upper and lower case - * alphabets and digits are each contiguous. - */ -unsigned long long -strtoull(const char *nptr, char **endptr, int base) -{ - const char *s; - unsigned long long acc; - char c; - unsigned long long cutoff; - int neg, any, cutlim; - - /* - * See strtoq for comments as to the logic used. - */ - s = nptr; - do { - c = *s++; - } while (isspace((unsigned char)c)); - if (c == '-') { - neg = 1; - c = *s++; - } else { - neg = 0; - if (c == '+') - c = *s++; - } - if ((base == 0 || base == 16) && - c == '0' && (*s == 'x' || *s == 'X') && - ((s[1] >= '0' && s[1] <= '9') || - (s[1] >= 'A' && s[1] <= 'F') || - (s[1] >= 'a' && s[1] <= 'f'))) { - c = s[1]; - s += 2; - base = 16; - } - if (base == 0) - base = c == '0' ? 8 : 10; - acc = any = 0; - if (base < 2 || base > 36) - goto noconv; - - cutoff = ULLONG_MAX / base; - cutlim = ULLONG_MAX % base; - for ( ; ; c = *s++) { - if (c >= '0' && c <= '9') - c -= '0'; - else if (c >= 'A' && c <= 'Z') - c -= 'A' - 10; - else if (c >= 'a' && c <= 'z') - c -= 'a' - 10; - else - break; - if (c >= base) - break; - if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) - any = -1; - else { - any = 1; - acc *= base; - acc += c; - } - } - if (any < 0) { - acc = ULLONG_MAX; - errno = ERANGE; - } else if (!any) { -noconv: - errno = EINVAL; - } else if (neg) - acc = -acc; - if (endptr != NULL) - *endptr = (char *)(any ? s - 1 : nptr); - return (acc); -} diff --git a/tiff/test/Makefile.am b/tiff/test/Makefile.am deleted file mode 100755 index da8e37b..0000000 --- a/tiff/test/Makefile.am +++ /dev/null @@ -1,305 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -AUTOMAKE_OPTIONS = 1.12 color-tests parallel-tests foreign - -LIBTIFF = $(top_builddir)/libtiff/libtiff.la - -# Environment parameters to be used during tests -TESTS_ENVIRONMENT = \ - MAKE="$(MAKE)" \ - MAKEFLAGS="$(MAKEFLAGS)" \ - MEMCHECK="$(MEMCHECK)" - -EXTRA_DIST = \ - $(TESTSCRIPTS) \ - $(IMAGES_EXTRA_DIST) \ - common.sh - -# All of the tests to execute via 'make check' -TESTS = $(check_PROGRAMS) $(TESTSCRIPTS) - -# Tests which are expected to fail -XFAIL_TESTS = - -# Extra files which should be cleaned by 'make clean' -CLEANFILES = test_packbits.tif o-* - -# Executable programs which need to be built in order to support tests -check_PROGRAMS = ascii_tag long_tag short_tag strip_rw rewrite raw_decode custom_dir - -# Test scripts to execute -TESTSCRIPTS = \ - bmp2tiff_palette.sh \ - bmp2tiff_rgb.sh \ - gif2tiff.sh \ - ppm2tiff_pbm.sh \ - ppm2tiff_pgm.sh \ - ppm2tiff_ppm.sh \ - tiffcp-g3.sh \ - tiffcp-g3-1d.sh \ - tiffcp-g3-1d-fill.sh \ - tiffcp-g3-2d.sh \ - tiffcp-g3-2d-fill.sh \ - tiffcp-g4.sh \ - tiffcp-logluv.sh \ - tiffcp-thumbnail.sh \ - tiffdump.sh \ - tiffinfo.sh \ - tiffcp-split.sh \ - tiffcp-split-join.sh \ - tiff2ps-PS1.sh \ - tiff2ps-PS2.sh \ - tiff2ps-PS3.sh \ - tiff2ps-EPS1.sh \ - tiff2pdf.sh \ - tiffcrop-doubleflip-logluv-3c-16b.sh \ - tiffcrop-doubleflip-minisblack-1c-16b.sh \ - tiffcrop-doubleflip-minisblack-1c-8b.sh \ - tiffcrop-doubleflip-minisblack-2c-8b-alpha.sh \ - tiffcrop-doubleflip-miniswhite-1c-1b.sh \ - tiffcrop-doubleflip-palette-1c-1b.sh \ - tiffcrop-doubleflip-palette-1c-4b.sh \ - tiffcrop-doubleflip-palette-1c-8b.sh \ - tiffcrop-doubleflip-rgb-3c-16b.sh \ - tiffcrop-doubleflip-rgb-3c-8b.sh \ - tiffcrop-extract-logluv-3c-16b.sh \ - tiffcrop-extract-minisblack-1c-16b.sh \ - tiffcrop-extract-minisblack-1c-8b.sh \ - tiffcrop-extract-minisblack-2c-8b-alpha.sh \ - tiffcrop-extract-miniswhite-1c-1b.sh \ - tiffcrop-extract-palette-1c-1b.sh \ - tiffcrop-extract-palette-1c-4b.sh \ - tiffcrop-extract-palette-1c-8b.sh \ - tiffcrop-extract-rgb-3c-16b.sh \ - tiffcrop-extract-rgb-3c-8b.sh \ - tiffcrop-extractz14-logluv-3c-16b.sh \ - tiffcrop-extractz14-minisblack-1c-16b.sh \ - tiffcrop-extractz14-minisblack-1c-8b.sh \ - tiffcrop-extractz14-minisblack-2c-8b-alpha.sh \ - tiffcrop-extractz14-miniswhite-1c-1b.sh \ - tiffcrop-extractz14-palette-1c-1b.sh \ - tiffcrop-extractz14-palette-1c-4b.sh \ - tiffcrop-extractz14-palette-1c-8b.sh \ - tiffcrop-extractz14-rgb-3c-16b.sh \ - tiffcrop-extractz14-rgb-3c-8b.sh \ - tiffcrop-R90-logluv-3c-16b.sh \ - tiffcrop-R90-minisblack-1c-16b.sh \ - tiffcrop-R90-minisblack-1c-8b.sh \ - tiffcrop-R90-minisblack-2c-8b-alpha.sh \ - tiffcrop-R90-miniswhite-1c-1b.sh \ - tiffcrop-R90-palette-1c-1b.sh \ - tiffcrop-R90-palette-1c-4b.sh \ - tiffcrop-R90-palette-1c-8b.sh \ - tiffcrop-R90-rgb-3c-16b.sh \ - tiffcrop-R90-rgb-3c-8b.sh \ - tiff2rgba-logluv-3c-16b.sh \ - tiff2rgba-minisblack-1c-16b.sh \ - tiff2rgba-minisblack-1c-8b.sh \ - tiff2rgba-minisblack-2c-8b-alpha.sh \ - tiff2rgba-miniswhite-1c-1b.sh \ - tiff2rgba-palette-1c-1b.sh \ - tiff2rgba-palette-1c-4b.sh \ - tiff2rgba-palette-1c-8b.sh \ - tiff2rgba-rgb-3c-16b.sh \ - tiff2rgba-rgb-3c-8b.sh \ - tiff2rgba-quad-tile.jpg.sh - -# This list should contain all of the TIFF files in the 'images' -# subdirectory which are intended to be used as input images for -# tests. All of these files should use the extension ".tiff". -TIFFIMAGES = \ - images/logluv-3c-16b.tiff \ - images/minisblack-1c-16b.tiff \ - images/minisblack-1c-8b.tiff \ - images/minisblack-2c-8b-alpha.tiff \ - images/miniswhite-1c-1b.tiff \ - images/palette-1c-1b.tiff \ - images/palette-1c-4b.tiff \ - images/palette-1c-8b.tiff \ - images/rgb-3c-16b.tiff \ - images/rgb-3c-8b.tiff \ - images/quad-tile.jpg.tiff - -BMPIMAGES = \ - images/palette-1c-8b.bmp \ - images/rgb-3c-8b.bmp - -GIFIMAGES = \ - images/palette-1c-8b.gif - -PNMIMAGES = \ - images/minisblack-1c-8b.pgm \ - images/miniswhite-1c-1b.pbm \ - images/rgb-3c-8b.ppm - -# This list should include all of the files in the 'images' -# subdirectory which are intended to be distributed. This may include -# files which are not currently used by the tests. -IMAGES_EXTRA_DIST = \ - images/README.txt \ - $(BMPIMAGES) \ - $(GIFIMAGES) \ - $(PNMIMAGES) \ - $(TIFFIMAGES) - -noinst_HEADERS = tifftest.h - -ascii_tag_SOURCES = ascii_tag.c -ascii_tag_LDADD = $(LIBTIFF) -long_tag_SOURCES = long_tag.c check_tag.c -long_tag_LDADD = $(LIBTIFF) -short_tag_SOURCES = short_tag.c check_tag.c -short_tag_LDADD = $(LIBTIFF) -strip_rw_SOURCES = strip_rw.c strip.c test_arrays.c test_arrays.h -strip_rw_LDADD = $(LIBTIFF) -rewrite_SOURCES = rewrite_tag.c -rewrite_LDADD = $(LIBTIFF) -raw_decode_SOURCES = raw_decode.c -raw_decode_LDADD = $(LIBTIFF) -custom_dir_SOURCES = custom_dir.c -custom_dir_LDADD = $(LIBTIFF) - -AM_CPPFLAGS = -I$(top_srcdir)/libtiff - -# memcheck: valgrind's memory access checker. -# -# The suppressions which come with valgrind are sometimes insufficient -# to handle certain system library aspects which may be reported and -# which are unrelated to libtiff. When first starting with a new -# system (or after a major system update), it is good to execute the -# test suite (known to already be passing!) like 'make memcheck -# VALGRIND_EXTRA_OPTS=--gen-suppressions=all' to create valgrind -# suppression entries in the test log. Make sure that none of the -# suppressions are due to libtiff itself. 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\ - done - -# Test rotations -generate-tiffcrop-R90-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-R90-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-R90-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -R90\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test flip (mirror) -generate-tiffcrop-doubleflip-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-doubleflip-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-doubleflip-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -F both\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test extracting a section 100 pixels wide and 100 pixels high -generate-tiffcrop-extract-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-extract-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-extract-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -U px -E top -X 60 -Y 60\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test extracting the first and fourth quarters from the left side. -generate-tiffcrop-extractz14-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-extractz14-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-extractz14-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -E left -Z1:4,2:4\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -generate-tiffcrop-tests: \ - generate-tiffcrop-R90-tests \ - generate-tiffcrop-doubleflip-tests \ - generate-tiffcrop-extract-tests \ - generate-tiffcrop-extractz14-tests - -generate-tests: \ - generate-tiff2rgba-tests \ - generate-tiffcrop-tests diff --git a/tiff/test/Makefile.in b/tiff/test/Makefile.in deleted file mode 100755 index d187f15..0000000 --- a/tiff/test/Makefile.in +++ /dev/null @@ -1,1907 +0,0 @@ -# Makefile.in generated by automake 1.15 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994-2014 Free Software Foundation, Inc. - -# This Makefile.in is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; 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When first starting with a new -# system (or after a major system update), it is good to execute the -# test suite (known to already be passing!) like 'make memcheck -# VALGRIND_EXTRA_OPTS=--gen-suppressions=all' to create valgrind -# suppression entries in the test log. Make sure that none of the -# suppressions are due to libtiff itself. Tell valgrind about the -# suppressions by creating a .valgrindrc file with content like: -# --memcheck:suppressions=mysupp.supp -memcheck: - $(MAKE) MEMCHECK='valgrind --tool=memcheck --leak-check=full --read-var-info=yes \ - --error-exitcode=2 --track-origins=yes --num-callers=12 \ - --quiet $(VALGRIND_EXTRA_OPTS)' check - -# ptrcheck: valgrind's experimental pointer checking tool. -ptrcheck: - $(MAKE) MEMCHECK='valgrind --tool=exp-ptrcheck --quiet $(VALGRIND_EXTRA_OPTS)' check - -generate-tiff2rgba-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiff2rgba-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiff2rgba-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFF2RGBA\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test rotations -generate-tiffcrop-R90-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-R90-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-R90-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -R90\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test flip (mirror) -generate-tiffcrop-doubleflip-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-doubleflip-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-doubleflip-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -F both\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test extracting a section 100 pixels wide and 100 pixels high -generate-tiffcrop-extract-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-extract-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-extract-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -U px -E top -X 60 -Y 60\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -# Test extracting the first and fourth quarters from the left side. -generate-tiffcrop-extractz14-tests: - for file in $(TIFFIMAGES) ; \ - do \ - base=`basename $$file .tiff` ; \ - testscript=$(srcdir)/tiffcrop-extractz14-$$base.sh ; \ - ( \ - echo "#!/bin/sh" ; \ - echo "# Generated file, master is Makefile.am" ; \ - echo ". \$${srcdir:-.}/common.sh" ; \ - echo "infile=\"\$$srcdir/$$file\"" ; \ - echo "outfile=\"o-tiffcrop-extractz14-$$base.tiff\"" ; \ - echo "f_test_convert \"\$$TIFFCROP -E left -Z1:4,2:4\" \$$infile \$$outfile" ; \ - echo "f_tiffinfo_validate \$$outfile" ; \ - ) > $$testscript ; \ - chmod +x $$testscript ; \ - done - -generate-tiffcrop-tests: \ - generate-tiffcrop-R90-tests \ - generate-tiffcrop-doubleflip-tests \ - generate-tiffcrop-extract-tests \ - generate-tiffcrop-extractz14-tests - -generate-tests: \ - generate-tiff2rgba-tests \ - generate-tiffcrop-tests - -# Tell versions [3.59,3.63) of GNU make to not export all variables. -# Otherwise a system limit (for SysV at least) may be exceeded. -.NOEXPORT: diff --git a/tiff/test/ascii_tag.c b/tiff/test/ascii_tag.c deleted file mode 100755 index 6337900..0000000 --- a/tiff/test/ascii_tag.c +++ /dev/null @@ -1,177 +0,0 @@ -/* $Id: ascii_tag.c,v 1.8 2013-12-17 14:41:57 bfriesen Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Module to test ASCII tags read/write functions. - */ - -#include "tif_config.h" - -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" - -static const char filename[] = "ascii_test.tiff"; - -static const struct { - ttag_t tag; - const char *value; -} ascii_tags[] = { - { TIFFTAG_DOCUMENTNAME, "Test TIFF image" }, - { TIFFTAG_IMAGEDESCRIPTION, "Temporary test image" }, - { TIFFTAG_MAKE, "This is not scanned image" }, - { TIFFTAG_MODEL, "No scanner" }, - { TIFFTAG_PAGENAME, "Test page" }, - { TIFFTAG_SOFTWARE, "Libtiff library" }, - { TIFFTAG_DATETIME, "2004:09:10 16:09:00" }, - { TIFFTAG_ARTIST, "Andrey V. Kiselev" }, - { TIFFTAG_HOSTCOMPUTER, "Debian GNU/Linux (Sarge)" }, - { TIFFTAG_TARGETPRINTER, "No printer" }, - { TIFFTAG_COPYRIGHT, "Copyright (c) 2004, Andrey Kiselev" }, - { TIFFTAG_FAXSUBADDRESS, "Fax subaddress" }, - /* DGN tags */ - { TIFFTAG_UNIQUECAMERAMODEL, "No camera" }, - { TIFFTAG_CAMERASERIALNUMBER, "1234567890" } -}; -#define NTAGS (sizeof (ascii_tags) / sizeof (ascii_tags[0])) - -static const char ink_names[] = "Red\0Green\0Blue"; -const int ink_names_size = 15; - -int -main() -{ - TIFF *tif; - size_t i; - unsigned char buf[] = { 0, 127, 255 }; - char *value; - - /* Test whether we can write tags. */ - tif = TIFFOpen(filename, "w"); - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, 1)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, 1)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, sizeof(buf))) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB)) { - fprintf (stderr, "Can't set PhotometricInterpretation tag.\n"); - goto failure; - } - - for (i = 0; i < NTAGS; i++) { - if (!TIFFSetField(tif, ascii_tags[i].tag, - ascii_tags[i].value)) { - fprintf(stderr, "Can't set tag %lu.\n", - (unsigned long)ascii_tags[i].tag); - goto failure; - } - } - - /* InkNames tag has special form, so we handle it separately. */ - if (!TIFFSetField(tif, TIFFTAG_NUMBEROFINKS, 3)) { - fprintf (stderr, "Can't set tag %d (NUMBEROFINKS).\n", - TIFFTAG_NUMBEROFINKS); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_INKNAMES, ink_names_size, ink_names)) { - fprintf (stderr, "Can't set tag %d (INKNAMES).\n", - TIFFTAG_INKNAMES); - goto failure; - } - - /* Write dummy pixel data. */ - if (TIFFWriteScanline(tif, buf, 0, 0) == -1) { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - TIFFClose(tif); - - /* Ok, now test whether we can read written values. */ - tif = TIFFOpen(filename, "r"); - if (!tif) { - fprintf (stderr, "Can't open test TIFF file %s.\n", filename); - return 1; - } - - for (i = 0; i < NTAGS; i++) { - if (!TIFFGetField(tif, ascii_tags[i].tag, &value) - || strcmp(value, ascii_tags[i].value)) { - fprintf(stderr, "Can't get tag %lu.\n", - (unsigned long)ascii_tags[i].tag); - goto failure; - } - } - - if (!TIFFGetField(tif, TIFFTAG_INKNAMES, &value) - || memcmp(value, ink_names, ink_names_size)) { - fprintf (stderr, "Can't get tag %d (INKNAMES).\n", - TIFFTAG_INKNAMES); - goto failure; - } - - TIFFClose(tif); - - /* All tests passed; delete file and exit with success status. */ - unlink(filename); - return 0; - -failure: - /* - * Something goes wrong; close file and return unsuccessful status. - * Do not remove the file for further manual investigation. - */ - TIFFClose(tif); - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/bmp2tiff_palette.sh b/tiff/test/bmp2tiff_palette.sh deleted file mode 100755 index 1992623..0000000 --- a/tiff/test/bmp2tiff_palette.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_PALETTE_1C_8B_BMP" -outfile="o-bmp2tiff_palette.tiff" -f_test_convert "$BMP2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/bmp2tiff_rgb.sh b/tiff/test/bmp2tiff_rgb.sh deleted file mode 100755 index 2e940ce..0000000 --- a/tiff/test/bmp2tiff_rgb.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_RGB_3C_8B_BMP" -outfile="o-bmp2tiff_rgb.tiff" -f_test_convert "$BMP2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/check_tag.c b/tiff/test/check_tag.c deleted file mode 100755 index 6275ac0..0000000 --- a/tiff/test/check_tag.c +++ /dev/null @@ -1,91 +0,0 @@ -/* $Id: check_tag.c,v 1.3 2008-04-15 14:19:37 dron Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Helper testing routines. - */ - -#include "tiffio.h" - -int -CheckShortField(TIFF *tif, const ttag_t field, const uint16 value) -{ - uint16 tmp = 123; - - if (!TIFFGetField(tif, field, &tmp)) { - fprintf (stderr, "Problem fetching tag %lu.\n", - (unsigned long) field); - return -1; - } - if (tmp != value) { - fprintf (stderr, "Wrong SHORT value fetched for tag %lu.\n", - (unsigned long) field); - return -1; - } - - return 0; -} - -int -CheckShortPairedField(TIFF *tif, const ttag_t field, const uint16 *values) -{ - uint16 tmp[2] = { 123, 456 }; - - if (!TIFFGetField(tif, field, tmp, tmp + 1)) { - fprintf (stderr, "Problem fetching tag %lu.\n", - (unsigned long) field); - return -1; - } - if (tmp[0] != values[0] || tmp[1] != values[1]) { - fprintf (stderr, "Wrong SHORT PAIR fetched for tag %lu.\n", - (unsigned long) field); - return -1; - } - - return 0; -} - -int -CheckLongField(TIFF *tif, const ttag_t field, const uint32 value) -{ - uint32 tmp = 123; - - if (!TIFFGetField(tif, field, &tmp)) { - fprintf (stderr, "Problem fetching tag %lu.\n", - (unsigned long) field); - return -1; - } - if (tmp != value) { - fprintf (stderr, "Wrong LONG value fetched for tag %lu.\n", - (unsigned long) field); - return -1; - } - - return 0; -} - - diff --git a/tiff/test/common.sh b/tiff/test/common.sh deleted file mode 100755 index 643104b..0000000 --- a/tiff/test/common.sh +++ /dev/null @@ -1,129 +0,0 @@ -# Common code fragment for tests -# -srcdir=${srcdir:-.} -BUILDDIR=`pwd` -SRCDIR=`dirname $0` -SRCDIR=`cd $SRCDIR && pwd` -TOPSRCDIR=`cd $srcdir/.. && pwd` -TOOLS=`cd ../tools && pwd` -IMAGES="${SRCDIR}/images" - -# Aliases for built tools -BMP2TIFF=${TOOLS}/bmp2tiff -FAX2PS=${TOOLS}/fax2ps -FAX2TIFF=${TOOLS}/fax2tiff -GIF2TIFF=${TOOLS}/gif2tiff -PAL2RGB=${TOOLS}/pal2rgb -PPM2TIFF=${TOOLS}/ppm2tiff -RAS2TIFF=${TOOLS}/ras2tiff -RAW2TIFF=${TOOLS}/raw2tiff -RGB2YCBCR=${TOOLS}/rgb2ycbcr -THUMBNAIL=${TOOLS}/thumbnail -TIFF2BW=${TOOLS}/tiff2bw -TIFF2PDF=${TOOLS}/tiff2pdf -TIFF2PS=${TOOLS}/tiff2ps -TIFF2RGBA=${TOOLS}/tiff2rgba -TIFFCMP=${TOOLS}/tiffcmp -TIFFCP=${TOOLS}/tiffcp -TIFFCROP=${TOOLS}/tiffcrop -TIFFDITHER=${TOOLS}/tiffdither -TIFFDUMP=${TOOLS}/tiffdump -TIFFINFO=${TOOLS}/tiffinfo -TIFFMEDIAN=${TOOLS}/tiffmedian -TIFFSET=${TOOLS}/tiffset -TIFFSPLIT=${TOOLS}/tiffsplit - -# Aliases for input test files -IMG_MINISBLACK_1C_16B=${IMAGES}/minisblack-1c-16b.tiff -IMG_MINISBLACK_1C_8B=${IMAGES}/minisblack-1c-8b.tiff -IMG_MINISWHITE_1C_1B=${IMAGES}/miniswhite-1c-1b.tiff -IMG_PALETTE_1C_1B=${IMAGES}/palette-1c-1b.tiff -IMG_PALETTE_1C_4B=${IMAGES}/palette-1c-4b.tiff -IMG_PALETTE_1C_8B=${IMAGES}/palette-1c-8b.tiff -IMG_RGB_3C_16B=${IMAGES}/rgb-3c-16b.tiff -IMG_RGB_3C_8B=${IMAGES}/rgb-3c-8b.tiff -IMG_MINISBLACK_2C_8B_ALPHA=${IMAGES}/minisblack-2c-8b-alpha.tiff - -IMG_PALETTE_1C_8B_BMP=${IMAGES}/palette-1c-8b.bmp -IMG_RGB_3C_8B_BMP=${IMAGES}/rgb-3c-8b.bmp - -IMG_PALETTE_1C_8B_GIF=${IMAGES}/palette-1c-8b.gif - -IMG_MINISWHITE_1C_1B_PBM=${IMAGES}/miniswhite-1c-1b.pbm -IMG_MINISBLACK_1C_8B_PGM=${IMAGES}/minisblack-1c-8b.pgm -IMG_RGB_3C_8B_PPM=${IMAGES}/rgb-3c-8b.ppm - -# All uncompressed image files -IMG_UNCOMPRESSED="${IMG_MINISBLACK_1C_16B} ${IMG_MINISBLACK_1C_8B} ${IMG_MINISWHITE_1C_1B} ${IMG_PALETTE_1C_1B} ${IMG_PALETTE_1C_4B} ${IMG_PALETTE_1C_4B} ${IMG_PALETTE_1C_8B} ${IMG_RGB_3C_8B}" - -# -# Test a simple convert-like command. -# -# f_test_convert command infile outfile -f_test_convert () -{ - command=$1 - infile=$2 - outfile=$3 - rm -f $outfile - echo "$MEMCHECK $command $infile $outfile" - eval $MEMCHECK $command $infile $outfile - status=$? - if [ $status != 0 ] ; then - echo "Returned failed status $status!" - echo "Output (if any) is in \"${outfile}\"." - exit $status - fi -} - -# -# Test a simple command which sends output to stdout -# -# f_test_stdout command infile outfile -f_test_stdout () -{ - command=$1 - infile=$2 - outfile=$3 - rm -f $outfile - echo "$MEMCHECK $command $infile > $outfile" - eval $MEMCHECK $command $infile > $outfile - status=$? - if [ $status != 0 ] ; then - echo "Returned failed status $status!" - echo "Output (if any) is in \"${outfile}\"." - exit $status - fi -} - -# -# Execute a simple command (e.g. tiffinfo) with one input file -# -# f_test_exec command infile -f_test_reader () -{ - command=$1 - infile=$2 - echo "$MEMCHECK $command $infile" - eval $MEMCHECK $command $infile - status=$? - if [ $status != 0 ] ; then - echo "Returned failed status $status!" - exit $status - fi -} - -# -# Execute tiffinfo on a specified file to validate it -# -# f_tiffinfo_validate infile -f_tiffinfo_validate () -{ - f_test_reader "$TIFFINFO -D" $1 -} - -if test "$VERBOSE" = TRUE -then - set -x -fi - diff --git a/tiff/test/custom_dir.c b/tiff/test/custom_dir.c deleted file mode 100755 index acf55ce..0000000 --- a/tiff/test/custom_dir.c +++ /dev/null @@ -1,247 +0,0 @@ -/* $Id: custom_dir.c,v 1.3 2013-12-17 14:41:58 bfriesen Exp $ */ - -/* - * Copyright (c) 2012, Frank Warmerdam - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Module to handling of custom directories like EXIF. - */ - -#include "tif_config.h" -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" -#include "tif_dir.h" -#include "tifftest.h" - -static const char filename[] = "custom_dir.tif"; - -#define SPP 3 /* Samples per pixel */ -const uint16 width = 1; -const uint16 length = 1; -const uint16 bps = 8; -const uint16 photometric = PHOTOMETRIC_RGB; -const uint16 rows_per_strip = 1; -const uint16 planarconfig = PLANARCONFIG_CONTIG; - -static TIFFField -customFields[] = { - { TIFFTAG_IMAGEWIDTH, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Custom1", NULL }, - { TIFFTAG_DOTRANGE, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 1, 0, "Custom2", NULL }, -}; - -static TIFFFieldArray customFieldArray = { tfiatOther, 0, 2, customFields }; - -int -main() -{ - TIFF *tif; - unsigned char buf[SPP] = { 0, 127, 255 }; - uint64 dir_offset = 0, dir_offset2 = 0; - uint64 read_dir_offset = 0, read_dir_offset2 = 0; - uint64 *dir_offset2_ptr = NULL; - char *ascii_value; - uint16 count16 = 0; - - - /* We write the main directory as a simple image. */ - tif = TIFFOpen(filename, "w+"); - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, SPP)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, planarconfig)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric)) { - fprintf (stderr, "Can't set PhotometricInterpretation tag.\n"); - goto failure; - } - - /* Write dummy pixel data. */ - if (TIFFWriteScanline(tif, buf, 0, 0) == -1) { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - if (!TIFFWriteDirectory( tif )) { - fprintf (stderr, "TIFFWriteDirectory() failed.\n"); - goto failure; - } - - /* - * Now create an EXIF directory. - */ - if (TIFFCreateEXIFDirectory(tif) != 0) { - fprintf (stderr, "TIFFCreateEXIFDirectory() failed.\n" ); - goto failure; - } - - if (!TIFFSetField( tif, EXIFTAG_SPECTRALSENSITIVITY, "EXIF Spectral Sensitivity")) { - fprintf (stderr, "Can't write SPECTRALSENSITIVITY\n" ); - goto failure; - } - - if (!TIFFWriteCustomDirectory( tif, &dir_offset )) { - fprintf (stderr, "TIFFWriteCustomDirectory() with EXIF failed.\n"); - goto failure; - } - - /* - * Now create a custom directory with tags that conflict with mainline - * TIFF tags. - */ - - TIFFFreeDirectory( tif ); - if (TIFFCreateCustomDirectory(tif, &customFieldArray) != 0) { - fprintf (stderr, "TIFFCreateEXIFDirectory() failed.\n" ); - goto failure; - } - - if (!TIFFSetField( tif, TIFFTAG_IMAGEWIDTH, "*Custom1")) { /* not really IMAGEWIDTH */ - fprintf (stderr, "Can't write pseudo-IMAGEWIDTH.\n" ); - goto failure; - } - - if (!TIFFSetField( tif, TIFFTAG_DOTRANGE, "*Custom2")) { /* not really DOTWIDTH */ - fprintf (stderr, "Can't write pseudo-DOTWIDTH.\n" ); - goto failure; - } - - if (!TIFFWriteCustomDirectory( tif, &dir_offset2 )) { - fprintf (stderr, "TIFFWriteCustomDirectory() with EXIF failed.\n"); - goto failure; - } - - /* - * Go back to the first directory, and add the EXIFIFD pointer. - */ - TIFFSetDirectory(tif, 0); - TIFFSetField(tif, TIFFTAG_EXIFIFD, dir_offset ); - TIFFSetField(tif, TIFFTAG_SUBIFD, 1, &dir_offset2 ); - - TIFFClose(tif); - - /* Ok, now test whether we can read written values in the EXIF directory. */ - tif = TIFFOpen(filename, "r"); - - TIFFGetField(tif, TIFFTAG_EXIFIFD, &read_dir_offset ); - if( read_dir_offset != dir_offset ) { - fprintf (stderr, "Did not get expected EXIFIFD.\n" ); - goto failure; - } - - TIFFGetField(tif, TIFFTAG_SUBIFD, &count16, &dir_offset2_ptr ); - read_dir_offset2 = dir_offset2_ptr[0]; - if( read_dir_offset2 != dir_offset2 || count16 != 1) { - fprintf (stderr, "Did not get expected SUBIFD.\n" ); - goto failure; - } - - if( !TIFFReadEXIFDirectory(tif, read_dir_offset) ) { - fprintf (stderr, "TIFFReadEXIFDirectory() failed.\n" ); - goto failure; - } - - if (!TIFFGetField( tif, EXIFTAG_SPECTRALSENSITIVITY, &ascii_value) ) { - fprintf (stderr, "reading SPECTRALSENSITIVITY failed.\n" ); - goto failure; - } - - if( strcmp(ascii_value,"EXIF Spectral Sensitivity") != 0) { - fprintf (stderr, "got wrong SPECTRALSENSITIVITY value.\n" ); - goto failure; - } - - /* Try reading the Custom directory */ - - if( !TIFFReadCustomDirectory(tif, read_dir_offset2, &customFieldArray) ) { - fprintf (stderr, "TIFFReadCustomDirectory() failed.\n" ); - goto failure; - } - - if (!TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &ascii_value) ) { - fprintf (stderr, "reading pseudo-IMAGEWIDTH failed.\n" ); - goto failure; - } - - if( strcmp(ascii_value,"*Custom1") != 0) { - fprintf (stderr, "got wrong pseudo-IMAGEWIDTH value.\n" ); - goto failure; - } - - if (!TIFFGetField( tif, TIFFTAG_DOTRANGE, &ascii_value) ) { - fprintf (stderr, "reading pseudo-DOTRANGE failed.\n" ); - goto failure; - } - - if( strcmp(ascii_value,"*Custom2") != 0) { - fprintf (stderr, "got wrong pseudo-DOTRANGE value.\n" ); - goto failure; - } - - TIFFClose(tif); - - /* All tests passed; delete file and exit with success status. */ - unlink(filename); - return 0; - -failure: - /* - * Something goes wrong; close file and return unsuccessful status. - * Do not remove the file for further manual investigation. - */ - TIFFClose(tif); - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/gif2tiff.sh b/tiff/test/gif2tiff.sh deleted file mode 100755 index 6bf9a12..0000000 --- a/tiff/test/gif2tiff.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_PALETTE_1C_8B_GIF" -outfile="o-gif2tiff.tiff" -f_test_convert "$GIF2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/long_tag.c b/tiff/test/long_tag.c deleted file mode 100755 index ab1440a..0000000 --- a/tiff/test/long_tag.c +++ /dev/null @@ -1,156 +0,0 @@ -/* $Id: long_tag.c,v 1.5 2013-12-17 14:41:58 bfriesen Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Module to test LONG tags read/write functions. - */ - -#include "tif_config.h" - -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" - -extern int CheckLongField(TIFF *, ttag_t, uint32); - -const char *filename = "long_test.tiff"; - -static struct Tags { - ttag_t tag; - short count; - uint32 value; -} long_tags[] = { - { TIFFTAG_SUBFILETYPE, 1, FILETYPE_REDUCEDIMAGE|FILETYPE_PAGE|FILETYPE_MASK } -}; -#define NTAGS (sizeof (long_tags) / sizeof (long_tags[0])) - -const uint32 width = 1; -const uint32 length = 1; -const uint32 rows_per_strip = 1; - -int -main(int argc, char **argv) -{ - TIFF *tif; - unsigned int i; - unsigned char buf[3] = { 0, 127, 255 }; - (void) argc; - (void) argv; - - /* Test whether we can write tags. */ - tif = TIFFOpen(filename, "w"); - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB)) { - fprintf (stderr, "Can't set PhotometricInterpretation tag.\n"); - goto failure; - } - - for (i = 0; i < NTAGS; i++) { - if (!TIFFSetField(tif, long_tags[i].tag, - long_tags[i].value)) { - fprintf(stderr, "Can't set tag %d.\n", - (int)long_tags[i].tag); - goto failure; - } - } - - /* Write dummy pixel data. */ - if (TIFFWriteScanline(tif, buf, 0, 0) == -1) { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - TIFFClose(tif); - - /* Ok, now test whether we can read written values. */ - tif = TIFFOpen(filename, "r"); - if (!tif) { - fprintf (stderr, "Can't open test TIFF file %s.\n", filename); - return 1; - } - - if (CheckLongField(tif, TIFFTAG_IMAGEWIDTH, width) < 0) - goto failure; - - if (CheckLongField(tif, TIFFTAG_IMAGELENGTH, length) < 0) - goto failure; - - if (CheckLongField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip) < 0) - goto failure; - - for (i = 0; i < NTAGS; i++) { - if (CheckLongField(tif, long_tags[i].tag, - long_tags[i].value) < 0) - goto failure; - } - - TIFFClose(tif); - - /* All tests passed; delete file and exit with success status. */ - unlink(filename); - return 0; - -failure: - /* Something goes wrong; close file and return unsuccessful status. */ - TIFFClose(tif); - unlink(filename); - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/ppm2tiff_pbm.sh b/tiff/test/ppm2tiff_pbm.sh deleted file mode 100755 index 68d9e45..0000000 --- a/tiff/test/ppm2tiff_pbm.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_MINISWHITE_1C_1B_PBM" -outfile="o-ppm2tiff_pbm.tiff" -f_test_convert "$PPM2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/ppm2tiff_pgm.sh b/tiff/test/ppm2tiff_pgm.sh deleted file mode 100755 index 001ec70..0000000 --- a/tiff/test/ppm2tiff_pgm.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_MINISBLACK_1C_8B_PGM" -outfile="o-ppm2tiff_pgm.tiff" -f_test_convert "$PPM2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/ppm2tiff_ppm.sh b/tiff/test/ppm2tiff_ppm.sh deleted file mode 100755 index 8a81527..0000000 --- a/tiff/test/ppm2tiff_ppm.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$IMG_RGB_3C_8B_PPM" -outfile="o-ppm2tiff_ppm.tiff" -f_test_convert "$PPM2TIFF" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/raw_decode.c b/tiff/test/raw_decode.c deleted file mode 100755 index 6d31eab..0000000 --- a/tiff/test/raw_decode.c +++ /dev/null @@ -1,274 +0,0 @@ -/* $Id: raw_decode.c,v 1.5 2012-12-20 18:08:07 tgl Exp $ */ - -/* - * Copyright (c) 2012, Frank Warmerdam - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * The objective of this test suite is to test the JPEGRawDecode() - * interface via TIFReadEncodedTile(). This function with YCbCr subsampling - * is a frequent source of bugs. - */ - -#include "tif_config.h" - -#include -#include -#include -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" - -#include "jpeglib.h" /* Needed for JPEG_LIB_VERSION */ - -static unsigned char cluster_0[] = { 0, 0, 2, 0, 138, 139 }; -static unsigned char cluster_64[] = { 0, 0, 9, 6, 134, 119 }; -static unsigned char cluster_128[] = { 44, 40, 63, 59, 230, 95 }; - -static int check_cluster( int cluster, unsigned char *buffer, unsigned char *expected_cluster ) { - unsigned char *target = buffer + cluster*6; - - if (memcmp(target, expected_cluster, 6) == 0) { - return 0; - } - - fprintf( stderr, "Cluster %d did not match expected results.\n", cluster ); - fprintf( stderr, - "Expect: %3d %3d %3d %3d\n" - " %3d %3d\n", - expected_cluster[0], expected_cluster[1], - expected_cluster[4], expected_cluster[5], - expected_cluster[2], expected_cluster[3] ); - fprintf( stderr, - " Got: %3d %3d %3d %3d\n" - " %3d %3d\n", - target[0], target[1], - target[4], target[5], - target[2], target[3] ); - return 1; -} - -static int check_rgb_pixel( int pixel, - int min_red, int max_red, - int min_green, int max_green, - int min_blue, int max_blue, - unsigned char *buffer ) { - unsigned char *rgb = buffer + 3 * pixel; - - if( rgb[0] >= min_red && rgb[0] <= max_red && - rgb[1] >= min_green && rgb[1] <= max_green && - rgb[2] >= min_blue && rgb[2] <= max_blue ) { - return 0; - } - - fprintf( stderr, "Pixel %d did not match expected results.\n", pixel ); - fprintf( stderr, "Got R=%d (expected %d..%d), G=%d (expected %d..%d), B=%d (expected %d..%d)\n", - rgb[0], min_red, max_red, - rgb[1], min_green, max_green, - rgb[2], min_blue, max_blue ); - return 1; -} - -static int check_rgba_pixel( int pixel, - int min_red, int max_red, - int min_green, int max_green, - int min_blue, int max_blue, - int min_alpha, int max_alpha, - uint32 *buffer ) { - /* RGBA images are upside down - adjust for normal ordering */ - int adjusted_pixel = pixel % 128 + (127 - (pixel/128)) * 128; - uint32 rgba = buffer[adjusted_pixel]; - - if( TIFFGetR(rgba) >= (uint32) min_red && - TIFFGetR(rgba) <= (uint32) max_red && - TIFFGetG(rgba) >= (uint32) min_green && - TIFFGetG(rgba) <= (uint32) max_green && - TIFFGetB(rgba) >= (uint32) min_blue && - TIFFGetB(rgba) <= (uint32) max_blue && - TIFFGetA(rgba) >= (uint32) min_alpha && - TIFFGetA(rgba) <= (uint32) max_alpha ) { - return 0; - } - - fprintf( stderr, "Pixel %d did not match expected results.\n", pixel ); - fprintf( stderr, "Got R=%d (expected %d..%d), G=%d (expected %d..%d), B=%d (expected %d..%d), A=%d (expected %d..%d)\n", - TIFFGetR(rgba), min_red, max_red, - TIFFGetG(rgba), min_green, max_green, - TIFFGetB(rgba), min_blue, max_blue, - TIFFGetA(rgba), min_alpha, max_alpha ); - return 1; -} - -int -main(int argc, char **argv) -{ - TIFF *tif; - static const char *srcfilerel = "images/quad-tile.jpg.tiff"; - char *srcdir = NULL; - char srcfile[1024]; - unsigned short h, v; - int status; - unsigned char *buffer; - uint32 *rgba_buffer; - tsize_t sz, szout; - unsigned int pixel_status = 0; - - (void) argc; - (void) argv; - - if ((srcdir = getenv("srcdir")) == NULL) { - srcdir = "."; - } - if ((strlen(srcdir) + 1 + strlen(srcfilerel)) >= sizeof(srcfile)) { - fprintf( stderr, "srcdir too long %s\n", srcdir); - exit( 1 ); - } - strcpy(srcfile,srcdir); - strcat(srcfile,"/"); - strcat(srcfile,srcfilerel); - - tif = TIFFOpen(srcfile,"r"); - if ( tif == NULL ) { - fprintf( stderr, "Could not open %s\n", srcfile); - exit( 1 ); - } - - status = TIFFGetField(tif,TIFFTAG_YCBCRSUBSAMPLING, &h, &v); - if ( status == 0 || h != 2 || v != 2) { - fprintf( stderr, "Could not retrieve subsampling tag.\n" ); - exit(1); - } - - /* - * What is the appropriate size of a YCbCr encoded tile? - */ - sz = TIFFTileSize(tif); - if( sz != 24576) { - fprintf(stderr, "tiles are %d bytes\n", (int)sz); - exit(1); - } - - buffer = (unsigned char *) malloc(sz); - - /* - * Read a tile in decompressed form, but still YCbCr subsampled. - */ - szout = TIFFReadEncodedTile(tif,9,buffer,sz); - if (szout != sz) { - fprintf( stderr, - "Did not get expected result code from TIFFReadEncodedTile()(%d instead of %d)\n", - (int) szout, (int) sz ); - return 1; - } - - if( check_cluster( 0, buffer, cluster_0 ) - || check_cluster( 64, buffer, cluster_64 ) - || check_cluster( 128, buffer, cluster_128 ) ) { - exit(1); - } - free(buffer); - - /* - * Read a tile using the built-in conversion to RGB format provided by the JPEG library. - */ - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - - sz = TIFFTileSize(tif); - if( sz != 128*128*3) { - fprintf(stderr, "tiles are %d bytes\n", (int)sz); - exit(1); - } - - buffer = (unsigned char *) malloc(sz); - - szout = TIFFReadEncodedTile(tif,9,buffer,sz); - if (szout != sz) { - fprintf( stderr, - "Did not get expected result code from TIFFReadEncodedTile()(%d instead of %d)\n", - (int) szout, (int) sz ); - return 1; - } - - /* - * JPEG decoding is inherently inexact, so we can't test for exact - * pixel values. (Well, if we knew exactly which libjpeg version - * we were using, and with what settings, we could expect specific - * values ... but it's not worth the trouble to keep track of.) - * Hence, use ranges of expected values. The ranges may need to be - * widened over time as more versions of libjpeg appear. - */ - pixel_status |= check_rgb_pixel( 0, 15, 18, 0, 0, 18, 41, buffer ); - pixel_status |= check_rgb_pixel( 64, 0, 0, 0, 0, 0, 2, buffer ); - pixel_status |= check_rgb_pixel( 512, 5, 6, 34, 36, 182, 196, buffer ); - - free( buffer ); - - TIFFClose(tif); - - /* - * Reopen and test reading using the RGBA interface. - */ - tif = TIFFOpen(srcfile,"r"); - - sz = 128 * 128 * sizeof(uint32); - rgba_buffer = (uint32 *) malloc(sz); - - if (!TIFFReadRGBATile( tif, 1*128, 2*128, rgba_buffer )) { - fprintf( stderr, "TIFFReadRGBATile() returned failure code.\n" ); - return 1; - } - - /* - * Currently TIFFReadRGBATile() just uses JPEGCOLORMODE_RGB so this - * trivally matches the last results. Eventually we should actually - * accomplish it from the YCbCr subsampled buffer ourselves in which - * case the results may be subtly different but similar. - */ - pixel_status |= check_rgba_pixel( 0, 15, 18, 0, 0, 18, 41, 255, 255, - rgba_buffer ); - pixel_status |= check_rgba_pixel( 64, 0, 0, 0, 0, 0, 2, 255, 255, - rgba_buffer ); - pixel_status |= check_rgba_pixel( 512, 5, 6, 34, 36, 182, 196, 255, 255, - rgba_buffer ); - - free( rgba_buffer ); - TIFFClose(tif); - - if (pixel_status) { - exit(1); - } - - exit( 0 ); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/test/rewrite_tag.c b/tiff/test/rewrite_tag.c deleted file mode 100755 index de0b551..0000000 --- a/tiff/test/rewrite_tag.c +++ /dev/null @@ -1,346 +0,0 @@ -/* $Id: rewrite_tag.c,v 1.6 2013-12-17 14:41:58 bfriesen Exp $ */ - -/* - * Copyright (c) 2007, Frank Warmerdam - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Module to test _TIFFRewriteField(). - */ - -#include "tif_config.h" - -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" -#include "tiffiop.h" - -const uint32 width = 10; -const uint32 length = 40; -const uint32 rows_per_strip = 1; - -int test_packbits() - -{ - TIFF *tif; - int i; - unsigned char buf[10] = {0,0,0,0,0,0,0,0,0,0}; - - int length = 20; - const char *filename = "test_packbits.tif"; - - /* Test whether we can write tags. */ - tif = TIFFOpen(filename, "w"); - - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_PACKBITS)) { - fprintf (stderr, "Can't set Compression tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - - for (i = 0; i < length; i++ ) - { - if( !TIFFWriteEncodedStrip( tif, i, buf, 10 ) ) - { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - } - - TIFFClose(tif); - - /* Test whether we can write tags. */ - - tif = TIFFOpen(filename, "r+"); - - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - buf[3] = 17; - buf[6] = 12; - - if( !TIFFWriteEncodedStrip( tif, 6, buf, 10 ) ) - { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - TIFFClose(tif); - - unlink(filename); - - return 0; - - failure: - /* Something goes wrong; close file and return unsuccessful status. */ - TIFFClose(tif); - /* unlink(filename); */ - - return 1; - -} - -/************************************************************************/ -/* rewrite_test() */ -/************************************************************************/ -int rewrite_test( const char *filename, int length, int bigtiff, - uint64 base_value ) - -{ - TIFF *tif; - int i; - unsigned char buf[10] = {5,6,7,8,9,10,11,12,13,14}; - uint64 *rowoffset, *rowbytes; - uint64 *upd_rowoffset; - uint64 *upd_bytecount; - - /* Test whether we can write tags. */ - if( bigtiff ) - tif = TIFFOpen(filename, "w8"); - else - tif = TIFFOpen(filename, "w4"); - - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_PACKBITS)) { - fprintf (stderr, "Can't set Compression tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - - for (i = 0; i < length; i++ ) - { - if( TIFFWriteScanline( tif, buf, i, 0 ) == -1 ) - { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - } - - TIFFClose(tif); - - /* Ok, now test whether we can read written values. */ - tif = TIFFOpen(filename, "r+"); - if (!tif) { - fprintf (stderr, "Can't open test TIFF file %s.\n", filename); - return 1; - } - - if( !TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &rowoffset ) ) - { - fprintf (stderr, "Can't fetch STRIPOFFSETS.\n"); - goto failure; - } - - if( !TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &rowbytes ) ) - { - fprintf (stderr, "Can't fetch STRIPBYTECOUNTS.\n"); - goto failure; - } - - upd_rowoffset = (uint64 *) _TIFFmalloc(sizeof(uint64) * length); - for( i = 0; i < length; i++ ) - upd_rowoffset[i] = base_value + i*10; - - if( !_TIFFRewriteField( tif, TIFFTAG_STRIPOFFSETS, TIFF_LONG8, - length, upd_rowoffset ) ) - { - fprintf (stderr, "Can't rewrite STRIPOFFSETS.\n"); - goto failure; - } - - _TIFFfree( upd_rowoffset ); - - upd_bytecount = (uint64 *) _TIFFmalloc(sizeof(uint64) * length); - for( i = 0; i < length; i++ ) - upd_bytecount[i] = 100 + i*10; - - if( !_TIFFRewriteField( tif, TIFFTAG_STRIPBYTECOUNTS, TIFF_LONG8, - length, upd_bytecount ) ) - { - fprintf (stderr, "Can't rewrite STRIPBYTECOUNTS.\n"); - goto failure; - } - - _TIFFfree( upd_bytecount ); - - TIFFClose(tif); - - /* Reopen file and read back to verify contents */ - - tif = TIFFOpen(filename, "r"); - if (!tif) { - fprintf (stderr, "Can't open test TIFF file %s.\n", filename); - return 1; - } - - if( !TIFFGetField( tif, TIFFTAG_STRIPOFFSETS, &rowoffset ) ) - { - fprintf (stderr, "Can't fetch STRIPOFFSETS.\n"); - goto failure; - } - - for( i = 0; i < length; i++ ) - { - uint64 expect = base_value + i*10; - - if( rowoffset[i] != expect ) - { - fprintf( stderr, - "%s:STRIPOFFSETS[%d]: Got %X:%08X instead of %X:%08X.\n", - filename, i, - (int) (rowoffset[i] >> 32), - (int) (rowoffset[i]&0xFFFFFFFF), - (int) (expect >> 32), - (int) (expect & 0xFFFFFFFF) ); - goto failure; - } - } - - if( !TIFFGetField( tif, TIFFTAG_STRIPBYTECOUNTS, &rowbytes ) ) - { - fprintf (stderr, "Can't fetch STRIPBYTECOUNTS.\n"); - goto failure; - } - - for( i = 0; i < length; i++ ) - { - uint64 expect = 100 + i*10; - - if( rowbytes[i] != expect ) - { - fprintf( stderr, - "%s:STRIPBYTECOUNTS[%d]: Got %X:%08X instead of %X:%08X.\n", - filename, i, - (int) (rowbytes[i] >> 32), - (int) (rowbytes[i] & 0xFFFFFFFF), - (int) (expect >> 32), - (int) (expect & 0xFFFFFFFF) ); - goto failure; - } - } - - TIFFClose( tif ); - - /* All tests passed; delete file and exit with success status. */ - unlink(filename); - return 0; - - failure: - /* Something goes wrong; close file and return unsuccessful status. */ - TIFFClose(tif); - /* unlink(filename); */ - - return 1; - -} - -/************************************************************************/ -/* main() */ -/************************************************************************/ -int -main(int argc, char **argv) -{ - (void) argc; - (void) argv; - int failure = 0; - - failure |= test_packbits(); - - /* test fairly normal use */ - failure |= rewrite_test( "rewrite1.tif", 10, 0, 100 ); - failure |= rewrite_test( "rewrite2.tif", 10, 1, 100 ); - - /* test case of fitting all in directory entry */ - failure |= rewrite_test( "rewrite3.tif", 1, 0, 100 ); - failure |= rewrite_test( "rewrite4.tif", 1, 1, 100 ); - - /* test with very large values that don't fit in 4bytes (bigtiff only) */ - failure |= rewrite_test( "rewrite5.tif", 1000, 1, 0x6000000000ULL ); - failure |= rewrite_test( "rewrite6.tif", 1, 1, 0x6000000000ULL ); - - return failure; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/short_tag.c b/tiff/test/short_tag.c deleted file mode 100755 index efc7da5..0000000 --- a/tiff/test/short_tag.c +++ /dev/null @@ -1,205 +0,0 @@ -/* $Id: short_tag.c,v 1.9 2013-12-17 14:41:58 bfriesen Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Module to test SHORT tags read/write functions. - */ - -#include "tif_config.h" - -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" -#include "tifftest.h" - -static const char filename[] = "short_test.tiff"; - -#define SPP 3 /* Samples per pixel */ -const uint16 width = 1; -const uint16 length = 1; -const uint16 bps = 8; -const uint16 photometric = PHOTOMETRIC_RGB; -const uint16 rows_per_strip = 1; -const uint16 planarconfig = PLANARCONFIG_CONTIG; - -static const struct { - const ttag_t tag; - const uint16 value; -} short_single_tags[] = { - { TIFFTAG_COMPRESSION, COMPRESSION_NONE }, - { TIFFTAG_FILLORDER, FILLORDER_MSB2LSB }, - { TIFFTAG_ORIENTATION, ORIENTATION_BOTRIGHT }, - { TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH }, - { TIFFTAG_MINSAMPLEVALUE, 23 }, - { TIFFTAG_MAXSAMPLEVALUE, 241 }, - { TIFFTAG_INKSET, INKSET_MULTIINK }, - { TIFFTAG_NUMBEROFINKS, SPP }, - { TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT } -}; -#define NSINGLETAGS (sizeof(short_single_tags) / sizeof(short_single_tags[0])) - -static const struct { - const ttag_t tag; - const uint16 values[2]; -} short_paired_tags[] = { - { TIFFTAG_PAGENUMBER, {1, 1} }, - { TIFFTAG_HALFTONEHINTS, {0, 255} }, - { TIFFTAG_DOTRANGE, {8, 16} }, - { TIFFTAG_YCBCRSUBSAMPLING, {2, 1} } -}; -#define NPAIREDTAGS (sizeof(short_paired_tags) / sizeof(short_paired_tags[0])) - -int -main() -{ - TIFF *tif; - size_t i; - unsigned char buf[SPP] = { 0, 127, 255 }; - - /* Test whether we can write tags. */ - tif = TIFFOpen(filename, "w"); - if (!tif) { - fprintf (stderr, "Can't create test TIFF file %s.\n", filename); - return 1; - } - - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, SPP)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, planarconfig)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric)) { - fprintf (stderr, "Can't set PhotometricInterpretation tag.\n"); - goto failure; - } - - for (i = 0; i < NSINGLETAGS; i++) { - if (!TIFFSetField(tif, short_single_tags[i].tag, - short_single_tags[i].value)) { - fprintf(stderr, "Can't set tag %lu.\n", - (unsigned long)short_single_tags[i].tag); - goto failure; - } - } - - for (i = 0; i < NPAIREDTAGS; i++) { - if (!TIFFSetField(tif, short_paired_tags[i].tag, - short_paired_tags[i].values[0], - short_paired_tags[i].values[1])) { - fprintf(stderr, "Can't set tag %lu.\n", - (unsigned long)short_paired_tags[i].tag); - goto failure; - } - } - - /* Write dummy pixel data. */ - if (TIFFWriteScanline(tif, buf, 0, 0) == -1) { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - TIFFClose(tif); - - /* Ok, now test whether we can read written values. */ - tif = TIFFOpen(filename, "r"); - if (!tif) { - fprintf (stderr, "Can't open test TIFF file %s.\n", filename); - return 1; - } - - if (CheckLongField(tif, TIFFTAG_IMAGEWIDTH, width) < 0) - goto failure; - - if (CheckLongField(tif, TIFFTAG_IMAGELENGTH, length) < 0) - goto failure; - - if (CheckShortField(tif, TIFFTAG_BITSPERSAMPLE, bps) < 0) - goto failure; - - if (CheckShortField(tif, TIFFTAG_PHOTOMETRIC, photometric) < 0) - goto failure; - - if (CheckShortField(tif, TIFFTAG_SAMPLESPERPIXEL, SPP) < 0) - goto failure; - - if (CheckLongField(tif, TIFFTAG_ROWSPERSTRIP, rows_per_strip) < 0) - goto failure; - - if (CheckShortField(tif, TIFFTAG_PLANARCONFIG, planarconfig) < 0) - goto failure; - - for (i = 0; i < NSINGLETAGS; i++) { - if (CheckShortField(tif, short_single_tags[i].tag, - short_single_tags[i].value) < 0) - goto failure; - } - - for (i = 0; i < NPAIREDTAGS; i++) { - if (CheckShortPairedField(tif, short_paired_tags[i].tag, - short_paired_tags[i].values) < 0) - goto failure; - } - - TIFFClose(tif); - - /* All tests passed; delete file and exit with success status. */ - unlink(filename); - return 0; - -failure: - /* - * Something goes wrong; close file and return unsuccessful status. - * Do not remove the file for further manual investigation. - */ - TIFFClose(tif); - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/strip.c b/tiff/test/strip.c deleted file mode 100755 index 5942226..0000000 --- a/tiff/test/strip.c +++ /dev/null @@ -1,290 +0,0 @@ -/* $Id: strip.c,v 1.5 2013-12-17 14:41:58 bfriesen Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Functions to test strip interface of libtiff. - */ - -#include -#include - -#include "tiffio.h" - -int -write_strips(TIFF *tif, const tdata_t array, const tsize_t size) -{ - tstrip_t strip, nstrips; - tsize_t stripsize, offset; - - stripsize = TIFFStripSize(tif); - if (!stripsize) { - fprintf (stderr, "Wrong size of strip.\n"); - return -1; - } - - nstrips = TIFFNumberOfStrips(tif); - for (offset = 0, strip = 0; - offset < size && strip < nstrips; - offset+=stripsize, strip++) { - /* - * Properly write last strip. - */ - tsize_t bufsize = size - offset; - if (bufsize > stripsize) - bufsize = stripsize; - - if (TIFFWriteEncodedStrip(tif, strip, (char *)array + offset, - bufsize) != bufsize) { - fprintf (stderr, "Can't write strip %lu.\n", - (unsigned long)strip); - return -1; - } - } - - return 0; -} - -int -read_strips(TIFF *tif, const tdata_t array, const tsize_t size) -{ - tstrip_t strip, nstrips; - tsize_t stripsize, offset; - tdata_t buf = NULL; - - stripsize = TIFFStripSize(tif); - if (!stripsize) { - fprintf (stderr, "Wrong size of strip.\n"); - return -1; - } - - buf = _TIFFmalloc(stripsize); - if (!buf) { - fprintf (stderr, "Can't allocate space for strip buffer.\n"); - return -1; - } - - nstrips = TIFFNumberOfStrips(tif); - for (offset = 0, strip = 0; - offset < size && strip < nstrips; - offset+=stripsize, strip++) { - /* - * Properly read last strip. - */ - tsize_t bufsize = size - offset; - if (bufsize > stripsize) - bufsize = stripsize; - - if (TIFFReadEncodedStrip(tif, strip, buf, -1) != bufsize) { - fprintf (stderr, "Can't read strip %lu.\n", - (unsigned long)strip); - return -1; - } - if (memcmp(buf, (char *)array + offset, bufsize) != 0) { - fprintf (stderr, "Wrong data read for strip %lu.\n", - (unsigned long)strip); - _TIFFfree(buf); - return -1; - } - } - - _TIFFfree(buf); - - return 0; -} - -int -create_image_striped(const char *name, uint32 width, uint32 length, - uint32 rowsperstrip, uint16 compression, - uint16 spp, uint16 bps, uint16 photometric, - uint16 sampleformat, uint16 planarconfig, - const tdata_t array, const tsize_t size) -{ - TIFF *tif; - - /* Test whether we can write tags. */ - tif = TIFFOpen(name, "w"); - if (!tif) - goto openfailure; - - if (!TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width)) { - fprintf (stderr, "Can't set ImageWidth tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_IMAGELENGTH, length)) { - fprintf (stderr, "Can't set ImageLength tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps)) { - fprintf (stderr, "Can't set BitsPerSample tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, spp)) { - fprintf (stderr, "Can't set SamplesPerPixel tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip)) { - fprintf (stderr, "Can't set RowsPerStrip tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PLANARCONFIG, planarconfig)) { - fprintf (stderr, "Can't set PlanarConfiguration tag.\n"); - goto failure; - } - if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric)) { - fprintf (stderr, "Can't set PhotometricInterpretation tag.\n"); - goto failure; - } - - if (write_strips(tif, array, size) < 0) { - fprintf (stderr, "Can't write image data.\n"); - goto failure; - } - - TIFFClose(tif); - return 0; - -failure: - TIFFClose(tif); -openfailure: - fprintf (stderr, "Can't create test TIFF file %s:\n" -" ImageWidth=%ld, ImageLength=%ld, RowsPerStrip=%ld, Compression=%d,\n" -" BitsPerSample=%d, SamplesPerPixel=%d, SampleFormat=%d,\n" -" PlanarConfiguration=%d, PhotometricInterpretation=%d.\n", - name, (long) width, (long) length, (long) rowsperstrip, - compression, bps, spp, sampleformat, planarconfig, - photometric); - return -1; -} - -int -read_image_striped(const char *name, uint32 width, uint32 length, - uint32 rowsperstrip, uint16 compression, - uint16 spp, uint16 bps, uint16 photometric, - uint16 sampleformat, uint16 planarconfig, - const tdata_t array, const tsize_t size) -{ - TIFF *tif; - uint16 value_u16; - uint32 value_u32; - - /* Test whether we can read written values. */ - tif = TIFFOpen(name, "r"); - if (!tif) - goto openfailure; - - if (TIFFIsTiled(tif)) { - fprintf (stderr, "Can't read image %s, it is tiled.\n", - name); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &value_u32) - || value_u32 != width) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_IMAGEWIDTH); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &value_u32) - || value_u32 != length) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_IMAGELENGTH); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &value_u16) - || value_u16 != bps) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_BITSPERSAMPLE); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &value_u16) - || value_u16 != photometric) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_PHOTOMETRIC); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &value_u16) - || value_u16 != spp) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_SAMPLESPERPIXEL); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &value_u32) - || value_u32 != rowsperstrip) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_ROWSPERSTRIP); - goto failure; - } - if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &value_u16) - || value_u16 != planarconfig) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_PLANARCONFIG); - goto failure; - } - - if (read_strips(tif, array, size) < 0) { - fprintf (stderr, "Can't read image data.\n"); - goto failure; - } - - TIFFClose(tif); - return 0; - -failure: - TIFFClose(tif); -openfailure: - fprintf (stderr, "Can't read test TIFF file %s:\n" -" ImageWidth=%ld, ImageLength=%ld, RowsPerStrip=%ld, Compression=%d,\n" -" BitsPerSample=%d, SamplesPerPixel=%d, SampleFormat=%d,\n" -" PlanarConfiguration=%d, PhotometricInterpretation=%d.\n", - name, (long) width, (long) length, (long) rowsperstrip, - compression, bps, spp, sampleformat, planarconfig, - photometric); - return -1; -} - -int -write_scanlines(TIFF *tif, const tdata_t array, const tsize_t size) -{ - uint32 length, row; - tsize_t scanlinesize, offset; - (void) size; - - if (!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &length)) { - fprintf (stderr, "Can't get tag %d.\n", TIFFTAG_IMAGELENGTH); - return -1; - } - - scanlinesize = TIFFScanlineSize(tif); - if (!scanlinesize) { - fprintf (stderr, "Wrong size of scanline.\n"); - return -1; - } - - for (offset = 0, row = 0; row < length; offset+=scanlinesize, row++) { - if (TIFFWriteScanline(tif, (char *)array + offset, row, 0) == -1) { - fprintf (stderr, - "Can't write image data at row %lu.\n", (long) row); - return -1; - } - } - - return 0; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/strip_rw.c b/tiff/test/strip_rw.c deleted file mode 100755 index 9eeeb51..0000000 --- a/tiff/test/strip_rw.c +++ /dev/null @@ -1,157 +0,0 @@ -/* $Id: strip_rw.c,v 1.6 2008-03-28 01:42:07 bfriesen Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Test libtiff input/output routines. - */ - -#include "tif_config.h" - -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" -#include "test_arrays.h" - -extern int -create_image_striped(const char *, uint32, uint32, uint32, uint16, uint16, - uint16, uint16, uint16, uint16, const tdata_t, - const tsize_t); -extern int -read_image_striped(const char *, uint32, uint32, uint32, uint16, uint16, - uint16, uint16, uint16, uint16, const tdata_t, - const tsize_t); - -const char *filename = "strip_test.tiff"; - -int -main(int argc, char **argv) -{ - uint32 rowsperstrip; - uint16 compression; - uint16 spp, bps, photometric, sampleformat, planarconfig; - (void) argc; - (void) argv; - - /* - * Test two special cases: image consisting from single line and image - * consisting from single column. - */ - rowsperstrip = 1; - compression = COMPRESSION_NONE; - spp = 1; - bps = 8; - photometric = PHOTOMETRIC_MINISBLACK; - sampleformat = SAMPLEFORMAT_UINT; - planarconfig = PLANARCONFIG_CONTIG; - - if (create_image_striped(filename, XSIZE * YSIZE, 1, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't create TIFF file %s.\n", filename); - goto failure; - } - if (read_image_striped(filename, XSIZE * YSIZE, 1, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't read TIFF file %s.\n", filename); - goto failure; - } - unlink(filename); - - if (create_image_striped(filename, 1, XSIZE * YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't create TIFF file %s.\n", filename); - goto failure; - } - if (read_image_striped(filename, 1, XSIZE * YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't read TIFF file %s.\n", filename); - goto failure; - } - unlink(filename); - - /* - * Test one-channel image with different parameters. - */ - rowsperstrip = 1; - spp = 1; - bps = 8; - photometric = PHOTOMETRIC_MINISBLACK; - sampleformat = SAMPLEFORMAT_UINT; - planarconfig = PLANARCONFIG_CONTIG; - - if (create_image_striped(filename, XSIZE, YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't create TIFF file %s.\n", filename); - goto failure; - } - if (read_image_striped(filename, XSIZE, YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't read TIFF file %s.\n", filename); - goto failure; - } - unlink(filename); - - rowsperstrip = YSIZE; - if (create_image_striped(filename, XSIZE, YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't create TIFF file %s.\n", filename); - goto failure; - } - if (read_image_striped(filename, XSIZE, YSIZE, rowsperstrip, - compression, spp, bps, photometric, - sampleformat, planarconfig, - (const tdata_t) byte_array1, byte_array1_size) < 0) { - fprintf (stderr, "Can't read TIFF file %s.\n", filename); - goto failure; - } - unlink(filename); - - return 0; - -failure: - unlink(filename); - return 1; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/test_arrays.c b/tiff/test/test_arrays.c deleted file mode 100755 index 03580fb..0000000 --- a/tiff/test/test_arrays.c +++ /dev/null @@ -1,829 +0,0 @@ -/* $Id: test_arrays.c,v 1.3 2006-03-23 14:54:02 dron Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Numerical arrays used to test libtiff's read/write functions. - */ - -#include - -#include "test_arrays.h" - -const unsigned char byte_array1[XSIZE * YSIZE]= -{ -86, 84, 86, 90, 89, 85, 90, 78, 77, 79, 75, 77, 79, 86, -87, 83, 82, 87, 89, 88, 86, 87, 88, 87, 81, 84, 85, 85, -84, 86, 88, 91, 96, 95, 97, 95, 89, -85, 82, 81, 88, 89, 85, 89, 83, 74, 79, 76, 77, 80, 87, -87, 84, 84, 88, 90, 89, 87, 85, 87, 88, 83, 80, 82, 84, -85, 87, 90, 95, 96, 95, 95, 92, 90, -85, 81, 79, 84, 90, 87, 88, 88, 73, 79, 75, 76, 79, 88, -88, 87, 85, 90, 92, 89, 88, 88, 87, 86, 84, 82, 82, 83, -87, 89, 93, 94, 93, 93, 92, 92, 96, -85, 82, 76, 80, 88, 89, 88, 89, 73, 80, 75, 75, 77, 89, -92, 93, 91, 89, 94, 92, 90, 89, 88, 84, 84, 82, 82, 85, -88, 91, 94, 93, 93, 89, 90, 96, 96, -87, 83, 75, 77, 83, 89, 90, 90, 74, 78, 76, 76, 76, 84, -94, 100, 89, 92, 94, 92, 90, 89, 90, 85, 84, 83, 83, 87, -91, 92, 88, 92, 91, 88, 90, 97, 95, -89, 83, 74, 77, 82, 84, 90, 92, 78, 72, 76, 75, 75, 81, -95, 101, 95, 92, 95, 93, 90, 89, 90, 87, 86, 84, 86, 88, -90, 90, 87, 90, 89, 90, 89, 98, 98, -92, 84, 75, 76, 81, 81, 86, 91, 81, 72, 74, 74, 75, 81, -104, 108, 93, 92, 95, 94, 88, 87, 89, 87, 85, 85, 88, 89, -93, 91, 88, 88, 91, 88, 91, 106, 108, -93, 89, 78, 75, 77, 80, 85, 86, 85, 73, 72, 73, 74, 79, -102, 101, 88, 92, 93, 91, 87, 87, 86, 87, 85, 86, 88, 89, -94, 94, 90, 88, 85, 86, 98, 109, 113, -92, 93, 83, 76, 74, 79, 84, 85, 81, 75, 72, 73, 74, 79, -105, 86, 86, 92, 96, 98, 104, 86, 85, 85, 85, 88, 90, 90, -93, 92, 88, 87, 86, 89, 97, 110, 109, -92, 93, 89, 78, 79, 78, 89, 84, 75, 76, 73, 72, 73, 78, -105, 83, 82, 88, 83, 107, 95, 84, 85, 84, 86, 87, 90, 91, -92, 90, 88, 87, 89, 90, 91, 99, 107, -96, 94, 91, 82, 84, 86, 91, 87, 75, 74, 73, 73, 73, 77, -101, 86, 83, 89, 92, 99, 98, 86, 86, 87, 83, 84, 89, 89, -92, 92, 92, 96, 96, 87, 91, 90, 98, -96, 97, 94, 87, 88, 89, 92, 90, 79, 72, 73, 73, 74, 77, -100, 92, 84, 86, 98, 100, 92, 87, 88, 88, 84, 83, 87, 89, -91, 94, 94, 96, 93, 87, 87, 84, 109, -93, 92, 95, 92, 94, 93, 92, 91, 82, 72, 73, 74, 74, 76, -95, 89, 85, 84, 102, 89, 85, 88, 94, 86, 82, 83, 82, 91, -94, 97, 90, 92, 85, 90, 85, 79, 125, -89, 96, 94, 90, 94, 95, 91, 91, 85, 76, 72, 73, 74, 75, -88, 100, 83, 84, 84, 83, 85, 88, 90, 85, 84, 83, 84, 88, -92, 93, 90, 89, 84, 90, 94, 79, 139, -93, 97, 97, 93, 92, 95, 91, 90, 87, 81, 74, 73, 73, 74, -85, 97, 95, 95, 89, 86, 86, 92, 87, 85, 84, 90, 86, 85, -91, 87, 87, 86, 93, 124, 140, 106, 143, -101, 95, 97, 97, 96, 95, 84, 88, 87, 82, 78, 73, 73, 74, -82, 92, 104, 95, 88, 89, 87, 89, 86, 85, 86, 87, 87, 81, -81, 83, 91, 106, 131, 153, 151, 123, 133, -99, 101, 102, 99, 96, 90, 83, 82, 85, 84, 79, 76, 74, 74, -78, 81, 89, 96, 90, 93, 88, 88, 86, 88, 89, 95, 89, 82, -81, 85, 104, 118, 141, 160, 129, 137, 147, -103, 104, 98, 99, 90, 88, 81, 76, 81, 83, 79, 77, 75, 75, -75, 76, 80, 90, 94, 87, 86, 87, 92, 85, 85, 85, 87, 87, -89, 91, 112, 115, 145, 154, 145, 141, 147, -106, 103, 100, 99, 92, 82, 78, 75, 78, 81, 79, 77, 77, 78, -78, 76, 77, 81, 89, 87, 84, 84, 90, 86, 85, 84, 80, 85, -97, 104, 119, 119, 149, 147, 144, 146, 152, -107, 105, 103, 100, 93, 83, 78, 74, 74, 79, 78, 77, 76, 78, -80, 79, 76, 78, 83, 84, 81, 81, 84, 83, 82, 78, 78, 85, -86, 97, 105, 114, 145, 146, 148, 147, 150, -107, 105, 103, 97, 92, 84, 72, 72, 75, 77, 76, 75, 76, 79, -80, 80, 77, 76, 82, 81, 80, 81, 80, 80, 80, 77, 74, 74, -73, 77, 91, 110, 132, 141, 152, 152, 145, -107, 105, 103, 96, 92, 86, 73, 71, 73, 75, 75, 76, 76, 78, -80, 80, 80, 98, 80, 80, 82, 82, 80, 78, 76, 73, 71, 72, -71, 74, 80, 108, 119, 136, 158, 142, 137, -107, 104, 101, 97, 85, 87, 75, 70, 70, 74, 74, 75, 77, 78, -80, 82, 110, 117, 110, 78, 81, 83, 81, 78, 76, 73, 71, 69, -68, 71, 74, 95, 120, 138, 148, 143, 139 -}; - -const size_t byte_array1_size = sizeof(byte_array1); - -const unsigned char byte_array2[YSIZE * XSIZE] = -{ -77, 73, 76, 80, 79, 75, 82, 65, 62, 64, 59, 59, 61, 72, -70, 67, 65, 70, 71, 70, 68, 66, 65, 67, 66, 66, 66, 66, -66, 66, 66, 66, 66, 65, 63, 63, 62, -75, 71, 71, 79, 81, 75, 81, 73, 59, 65, 60, 60, 64, 73, -73, 68, 66, 70, 72, 71, 68, 66, 66, 67, 66, 66, 66, 67, -67, 67, 66, 67, 66, 64, 63, 63, 63, -76, 71, 66, 73, 81, 78, 80, 79, 59, 66, 60, 59, 62, 74, -74, 71, 67, 70, 73, 71, 68, 66, 65, 65, 66, 66, 67, 67, -67, 67, 67, 67, 66, 64, 64, 64, 64, -76, 72, 64, 68, 79, 81, 80, 80, 59, 68, 60, 59, 60, 75, -75, 73, 67, 68, 73, 72, 68, 66, 65, 63, 67, 67, 67, 67, -68, 67, 67, 66, 65, 64, 65, 65, 65, -79, 72, 63, 66, 73, 80, 83, 82, 60, 65, 61, 61, 60, 66, -75, 75, 65, 70, 73, 72, 68, 66, 65, 64, 68, 67, 68, 68, -68, 67, 67, 66, 65, 65, 65, 66, 65, -81, 73, 62, 65, 72, 74, 82, 85, 66, 59, 62, 60, 60, 63, -75, 76, 68, 69, 72, 72, 68, 66, 66, 65, 67, 68, 68, 68, -68, 68, 66, 66, 64, 66, 65, 66, 66, -84, 74, 64, 64, 70, 71, 78, 84, 70, 58, 60, 59, 59, 63, -75, 80, 73, 67, 72, 72, 68, 66, 66, 65, 66, 68, 68, 68, -68, 68, 66, 65, 65, 65, 66, 67, 68, -87, 81, 66, 63, 65, 68, 76, 76, 75, 59, 58, 59, 59, 60, -71, 92, 65, 64, 74, 72, 69, 67, 65, 65, 65, 68, 69, 68, -69, 67, 65, 65, 65, 65, 67, 68, 69, -86, 86, 73, 64, 62, 67, 75, 76, 70, 61, 58, 58, 59, 60, -81, 68, 59, 63, 74, 90, 99, 67, 65, 65, 64, 67, 68, 68, -68, 67, 65, 65, 66, 65, 66, 68, 68, -85, 85, 80, 66, 67, 67, 81, 74, 62, 63, 59, 58, 58, 60, -93, 61, 59, 59, 68, 115, 76, 67, 66, 64, 64, 66, 68, 68, -68, 66, 65, 65, 66, 65, 64, 65, 69, -90, 87, 83, 71, 74, 77, 83, 79, 63, 60, 59, 59, 58, 58, -90, 61, 59, 59, 67, 80, 71, 68, 66, 64, 63, 63, 68, 68, -68, 66, 65, 66, 67, 65, 64, 62, 87, -91, 92, 86, 76, 78, 81, 85, 82, 67, 59, 59, 59, 59, 60, -88, 72, 59, 60, 74, 80, 70, 67, 66, 64, 62, 60, 65, 68, -67, 66, 65, 67, 66, 64, 62, 59, 111, -84, 84, 87, 85, 87, 85, 84, 84, 72, 59, 59, 59, 59, 59, -73, 71, 62, 59, 100, 70, 70, 67, 66, 64, 60, 58, 58, 67, -68, 66, 65, 66, 64, 63, 59, 56, 131, -80, 90, 87, 83, 88, 89, 84, 83, 76, 64, 59, 59, 59, 58, -59, 97, 64, 62, 71, 68, 70, 73, 66, 63, 61, 58, 58, 62, -67, 66, 64, 65, 63, 63, 61, 57, 149, -86, 91, 92, 87, 85, 88, 83, 81, 78, 69, 61, 59, 59, 59, -59, 61, 83, 72, 67, 67, 69, 69, 66, 64, 61, 72, 56, 57, -64, 64, 64, 64, 65, 115, 150, 93, 151, -97, 89, 91, 92, 89, 88, 74, 80, 78, 71, 65, 59, 58, 59, -58, 59, 71, 72, 67, 70, 70, 69, 67, 64, 63, 66, 56, 54, -57, 59, 64, 87, 139, 162, 160, 128, 141, -94, 96, 97, 94, 89, 82, 71, 70, 76, 73, 67, 61, 59, 59, -58, 59, 61, 71, 67, 75, 70, 68, 70, 65, 63, 63, 59, 56, -54, 55, 90, 121, 149, 168, 138, 144, 157, -99, 100, 93, 93, 82, 80, 70, 62, 70, 72, 67, 63, 60, 60, -58, 58, 60, 68, 70, 70, 69, 68, 79, 68, 64, 62, 60, 59, -57, 57, 88, 120, 151, 162, 154, 149, 155, -103, 99, 95, 94, 84, 73, 67, 62, 65, 69, 67, 64, 63, 64, -63, 59, 60, 65, 71, 69, 69, 67, 78, 65, 63, 61, 59, 61, -60, 68, 100, 128, 155, 155, 152, 155, 164, -104, 102, 99, 95, 86, 74, 67, 61, 61, 66, 65, 63, 63, 64, -65, 63, 60, 63, 70, 69, 67, 67, 67, 65, 62, 60, 58, 57, -62, 58, 71, 117, 150, 154, 157, 155, 163, -104, 101, 99, 91, 84, 74, 59, 59, 62, 64, 63, 61, 62, 64, -64, 64, 61, 60, 69, 68, 67, 69, 67, 65, 62, 59, 58, 57, -57, 56, 59, 104, 137, 147, 159, 161, 158, -104, 101, 99, 90, 85, 77, 60, 57, 60, 62, 62, 62, 63, 64, -65, 65, 66, 100, 67, 67, 69, 69, 67, 65, 63, 60, 58, 56, -54, 55, 56, 77, 122, 142, 166, 157, 150, -104, 101, 97, 92, 77, 79, 64, 57, 57, 62, 62, 62, 64, 65, -66, 65, 115, 138, 129, 64, 68, 70, 68, 66, 64, 60, 58, 56, -53, 53, 56, 62, 115, 143, 157, 156, 159 -}; - -const size_t byte_array2_size = sizeof(byte_array2); - -const unsigned char byte_array3[YSIZE * XSIZE] = -{ -211, 221, 216, 201, 205, 216, 195, 236, 244, 237, 250, 250, 248, 218, -223, 232, 236, 224, 221, 221, 227, 231, 232, 227, 229, 227, 227, 225, -227, 225, 226, 226, 226, 228, 234, 234, 234, 216, 226, 228, 205, 200, -214, 198, 215, 250, 233, 247, 250, 242, 219, 220, 229, 235, 225, 217, -220, 227, 232, 230, 228, 229, 228, 227, 224, 225, 223, 226, 225, 226, -230, 233, 233, 234, 213, 227, 237, 220, 200, 204, 202, 201, 248, 231, -246, 250, 245, 214, 215, 223, 232, 225, 218, 218, 225, 230, 232, 231, -229, 227, 225, 224, 223, 226, 224, 225, 228, 229, 230, 232, 231, 215, -223, 242, 233, 206, 200, 201, 197, 250, 227, 250, 249, 248, 211, 212, -216, 233, 229, 216, 218, 225, 230, 232, 237, 226, 224, 224, 223, 225, -225, 224, 225, 228, 229, 231, 229, 231, 208, 220, 247, 238, 221, 202, -194, 194, 245, 237, 247, 247, 249, 234, 210, 212, 237, 222, 219, 217, -226, 229, 232, 235, 222, 222, 223, 223, 223, 224, 224, 227, 226, 229, -229, 228, 231, 200, 221, 247, 239, 224, 217, 196, 189, 229, 248, 245, -248, 250, 241, 210, 210, 230, 225, 218, 218, 224, 230, 230, 229, 224, -222, 222, 222, 222, 223, 225, 226, 231, 226, 228, 229, 230, 191, 216, -246, 245, 226, 228, 207, 191, 221, 251, 248, 249, 251, 245, 214, 214, -233, 229, 217, 217, 224, 229, 230, 229, 225, 220, 223, 221, 222, 224, -224, 227, 230, 227, 226, 229, 230, 187, 199, 238, 248, 242, 231, 213, -211, 209, 246, 248, 251, 251, 250, 226, 215, 236, 237, 217, 215, 222, -226, 229, 229, 227, 222, 222, 223, 222, 225, 227, 228, 226, 227, 228, -228, 230, 188, 189, 221, 243, 247, 237, 215, 209, 223, 241, 248, 248, -250, 248, 228, 234, 251, 239, 219, 210, 205, 224, 229, 228, 230, 221, -223, 223, 222, 226, 229, 228, 224, 227, 229, 230, 232, 190, 190, 201, -235, 236, 238, 198, 214, 243, 238, 248, 248, 250, 249, 215, 244, 250, -250, 240, 168, 220, 224, 228, 230, 231, 226, 221, 224, 223, 226, 230, -227, 226, 226, 230, 233, 234, 179, 185, 195, 224, 215, 210, 195, 204, -239, 245, 250, 250, 252, 254, 216, 243, 249, 249, 233, 210, 215, 223, -227, 230, 234, 234, 224, 223, 223, 227, 230, 226, 226, 228, 231, 235, -212, 178, 174, 190, 211, 207, 199, 189, 194, 230, 250, 250, 250, 253, -253, 222, 225, 250, 248, 218, 216, 217, 225, 226, 232, 239, 242, 229, -223, 224, 229, 230, 225, 228, 230, 236, 241, 183, 194, 194, 185, 190, -185, 190, 191, 191, 219, 250, 251, 250, 253, 254, 241, 225, 246, 249, -198, 217, 220, 224, 225, 234, 241, 242, 246, 224, 223, 227, 229, 227, -228, 234, 237, 245, 149, 203, 178, 182, 193, 185, 179, 191, 194, 211, -236, 252, 252, 254, 254, 253, 192, 240, 244, 235, 224, 220, 229, 224, -236, 239, 243, 244, 236, 224, 229, 230, 229, 231, 230, 233, 244, 128, -188, 177, 171, 184, 191, 182, 196, 197, 208, 224, 247, 253, 255, 252, -250, 248, 226, 216, 228, 230, 220, 220, 227, 234, 237, 231, 247, 244, -231, 231, 229, 228, 229, 182, 128, 196, 118, 160, 182, 174, 172, 179, -183, 216, 203, 206, 220, 236, 253, 254, 253, 253, 249, 225, 219, 232, -230, 220, 224, 227, 233, 237, 234, 244, 250, 245, 240, 224, 212, 174, -123, 124, 176, 127, 171, 163, 161, 167, 177, 198, 221, 228, 212, 215, -233, 245, 252, 255, 253, 252, 251, 223, 231, 216, 222, 227, 231, 231, -234, 227, 238, 245, 249, 244, 210, 177, 124, 129, 134, 124, 113, 156, -155, 172, 168, 197, 201, 224, 247, 224, 219, 233, 242, 249, 250, 252, -254, 252, 230, 230, 224, 224, 225, 225, 227, 232, 232, 235, 239, 239, -241, 213, 178, 131, 128, 128, 120, 114, 149, 157, 165, 168, 191, 218, -231, 246, 237, 226, 234, 241, 243, 239, 244, 252, 249, 237, 225, 226, -224, 227, 220, 229, 235, 235, 239, 238, 236, 230, 204, 177, 125, 131, -127, 117, 111, 146, 151, 158, 166, 187, 215, 230, 246, 246, 231, 238, -243, 246, 243, 241, 244, 253, 245, 226, 226, 229, 229, 229, 231, 236, -238, 241, 240, 241, 235, 224, 188, 134, 123, 127, 116, 116, 144, 151, -158, 173, 190, 214, 251, 250, 243, 236, 242, 249, 246, 241, 241, 244, -251, 251, 228, 230, 230, 226, 232, 231, 236, 241, 243, 244, 243, 243, -235, 200, 150, 128, 122, 119, 117, 144, 151, 156, 176, 190, 207, 246, -253, 244, 239, 244, 246, 244, 242, 240, 243, 249, 198, 239, 234, 226, -226, 228, 234, 238, 241, 244, 245, 247, 250, 244, 219, 182, 138, 118, -118, 116, 143, 150, 162, 173, 208, 205, 238, 253, 251, 241, 244, 244, -242, 243, 238, 246, 193, 146, 173, 246, 231, 223, 230, 232, 236, 240, -245, 247, 252, 252, 245, 233, 195, 138, 114, 118, 108 -}; - -const size_t byte_array3_size = sizeof(byte_array3); - -const float array_float1[YSIZE * XSIZE] = -{ -234.866, 229.404, 234.866, 245.790, 243.059, 232.135, 245.790, 213.018, -210.287, 215.749, 204.825, 210.287, 215.749, 234.866, 237.597, 226.673, -223.942, 237.597, 243.059, 240.328, 234.866, 237.597, 240.328, 237.597, -221.211, 229.404, 232.135, 232.135, 229.404, 234.866, 240.328, 248.521, -262.176, 259.445, 264.907, 259.445, 243.059, -232.135, 223.942, 221.211, 240.328, 243.059, 232.135, 243.059, 226.673, -202.094, 215.749, 207.556, 210.287, 218.480, 237.597, 237.597, 229.404, -229.404, 240.328, 245.790, 243.059, 237.597, 232.135, 237.597, 240.328, -226.673, 218.480, 223.942, 229.404, 232.135, 237.597, 245.790, 259.445, -262.176, 259.445, 259.445, 251.252, 245.790, -232.135, 221.211, 215.749, 229.404, 245.790, 237.597, 240.328, 240.328, -199.363, 215.749, 204.825, 207.556, 215.749, 240.328, 240.328, 237.597, -232.135, 245.790, 251.252, 243.059, 240.328, 240.328, 237.597, 234.866, -229.404, 223.942, 223.942, 226.673, 237.597, 243.059, 253.983, 256.714, -253.983, 253.983, 251.252, 251.252, 262.176, -232.135, 223.942, 207.556, 218.480, 240.328, 243.059, 240.328, 243.059, -199.363, 218.480, 204.825, 204.825, 210.287, 243.059, 251.252, 253.983, -248.521, 243.059, 256.714, 251.252, 245.790, 243.059, 240.328, 229.404, -229.404, 223.942, 223.942, 232.135, 240.328, 248.521, 256.714, 253.983, -253.983, 243.059, 245.790, 262.176, 262.176, -237.597, 226.673, 204.825, 210.287, 226.673, 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264.907, 251.252, 210.287, 215.749, 174.784, 155.667, -155.667, 169.322, 169.322, 169.322, 174.784, 177.515, 180.246, 177.515, -314.065, 376.878, 352.299, 174.784, 185.708, 191.170, 185.708, 180.246, -174.784, 163.860, 158.398, 152.936, 144.743, 144.743, 152.936, 169.322, -314.065, 390.533, 428.767, 426.036, 434.229 -}; - -const size_t array_float2_size = sizeof(array_float2); - -const double array_double1[YSIZE * XSIZE] = -{ -148.914762, 145.451628, 148.914762, 155.841030, 154.109463, 147.183195, -155.841030, 135.062226, 133.330659, 136.793793, 129.867525, 133.330659, -136.793793, 148.914762, 150.646329, 143.720061, 141.988494, 150.646329, -154.109463, 152.377896, 148.914762, 150.646329, 152.377896, 150.646329, -140.256927, 145.451628, 147.183195, 147.183195, 145.451628, 148.914762, -152.377896, 157.572597, 166.230432, 164.498865, 167.961999, 164.498865, -154.109463, -147.183195, 141.988494, 140.256927, 152.377896, 154.109463, 147.183195, -154.109463, 143.720061, 128.135958, 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-263.198184, -185.277669, 181.814535, 178.351401, 173.156700, 161.035731, 143.720061, -135.062226, 128.135958, 128.135958, 136.793793, 135.062226, 133.330659, -131.599092, 135.062226, 138.525360, 136.793793, 131.599092, 135.062226, -143.720061, 145.451628, 140.256927, 140.256927, 145.451628, 143.720061, -141.988494, 135.062226, 135.062226, 147.183195, 148.914762, 167.961999, -181.814535, 197.398638, 251.077215, 252.808782, 256.271916, 254.540349, -259.735050, -185.277669, 181.814535, 178.351401, 167.961999, 159.304164, 145.451628, -124.672824, 124.672824, 129.867525, 133.330659, 131.599092, 129.867525, -131.599092, 136.793793, 138.525360, 138.525360, 133.330659, 131.599092, -141.988494, 140.256927, 138.525360, 140.256927, 138.525360, 138.525360, -138.525360, 133.330659, 128.135958, 128.135958, 126.404391, 133.330659, -157.572597, 190.472370, 228.566844, 244.150947, 263.198184, 263.198184, -251.077215, -185.277669, 181.814535, 178.351401, 166.230432, 159.304164, 148.914762, -126.404391, 122.941257, 126.404391, 129.867525, 129.867525, 131.599092, -131.599092, 135.062226, 138.525360, 138.525360, 138.525360, 169.693566, -138.525360, 138.525360, 141.988494, 141.988494, 138.525360, 135.062226, -131.599092, 126.404391, 122.941257, 124.672824, 122.941257, 128.135958, -138.525360, 187.009236, 206.056473, 235.493112, 273.587586, 245.882514, -237.224679, -185.277669, 180.082968, 174.888267, 167.961999, 147.183195, 150.646329, -129.867525, 121.209690, 121.209690, 128.135958, 128.135958, 129.867525, -133.330659, 135.062226, 138.525360, 141.988494, 190.472370, 202.593339, -190.472370, 135.062226, 140.256927, 143.720061, 140.256927, 135.062226, -131.599092, 126.404391, 122.941257, 119.478123, 117.746556, 122.941257, -128.135958, 164.498865, 207.788040, 238.956246, 256.271916, 247.614081, -240.687813 -}; - -const size_t array_double1_size = sizeof(array_double1); - -const double array_double2[YSIZE * XSIZE] = -{ -133.330659, 126.404391, 131.599092, 138.525360, 136.793793, 129.867525, -141.988494, 112.551855, 107.357154, 110.820288, 102.162453, 102.162453, -105.625587, 124.672824, 121.209690, 116.014989, 112.551855, 121.209690, -122.941257, 121.209690, 117.746556, 114.283422, 112.551855, 116.014989, -114.283422, 114.283422, 114.283422, 114.283422, 114.283422, 114.283422, -114.283422, 114.283422, 114.283422, 112.551855, 109.088721, 109.088721, -107.357154, -129.867525, 122.941257, 122.941257, 136.793793, 140.256927, 129.867525, -140.256927, 126.404391, 102.162453, 112.551855, 103.894020, 103.894020, -110.820288, 126.404391, 126.404391, 117.746556, 114.283422, 121.209690, -124.672824, 122.941257, 117.746556, 114.283422, 114.283422, 116.014989, -114.283422, 114.283422, 114.283422, 116.014989, 116.014989, 116.014989, -114.283422, 116.014989, 114.283422, 110.820288, 109.088721, 109.088721, -109.088721, -131.599092, 122.941257, 114.283422, 126.404391, 140.256927, 135.062226, -138.525360, 136.793793, 102.162453, 114.283422, 103.894020, 102.162453, -107.357154, 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117.746556, -114.283422, 112.551855, 112.551855, 112.551855, 114.283422, 116.014989, -117.746556, -150.646329, 140.256927, 114.283422, 109.088721, 112.551855, 117.746556, -131.599092, 131.599092, 129.867525, 102.162453, 100.430886, 102.162453, -102.162453, 103.894020, 122.941257, 159.304164, 112.551855, 110.820288, -128.135958, 124.672824, 119.478123, 116.014989, 112.551855, 112.551855, -112.551855, 117.746556, 119.478123, 117.746556, 119.478123, 116.014989, -112.551855, 112.551855, 112.551855, 112.551855, 116.014989, 117.746556, -119.478123, -148.914762, 148.914762, 126.404391, 110.820288, 107.357154, 116.014989, -129.867525, 131.599092, 121.209690, 105.625587, 100.430886, 100.430886, -102.162453, 103.894020, 140.256927, 117.746556, 102.162453, 109.088721, -128.135958, 155.841030, 171.425133, 116.014989, 112.551855, 112.551855, -110.820288, 116.014989, 117.746556, 117.746556, 117.746556, 116.014989, -112.551855, 112.551855, 114.283422, 112.551855, 114.283422, 117.746556, -117.746556, -147.183195, 147.183195, 138.525360, 114.283422, 116.014989, 116.014989, -140.256927, 128.135958, 107.357154, 109.088721, 102.162453, 100.430886, -100.430886, 103.894020, 161.035731, 105.625587, 102.162453, 102.162453, -117.746556, 199.130205, 131.599092, 116.014989, 114.283422, 110.820288, -110.820288, 114.283422, 117.746556, 117.746556, 117.746556, 114.283422, -112.551855, 112.551855, 114.283422, 112.551855, 110.820288, 112.551855, -119.478123, -155.841030, 150.646329, 143.720061, 122.941257, 128.135958, 133.330659, -143.720061, 136.793793, 109.088721, 103.894020, 102.162453, 102.162453, -100.430886, 100.430886, 155.841030, 105.625587, 102.162453, 102.162453, -116.014989, 138.525360, 122.941257, 117.746556, 114.283422, 110.820288, -109.088721, 109.088721, 117.746556, 117.746556, 117.746556, 114.283422, -112.551855, 114.283422, 116.014989, 112.551855, 110.820288, 107.357154, -150.646329, -157.572597, 159.304164, 148.914762, 131.599092, 135.062226, 140.256927, -147.183195, 141.988494, 116.014989, 102.162453, 102.162453, 102.162453, -102.162453, 103.894020, 152.377896, 124.672824, 102.162453, 103.894020, -128.135958, 138.525360, 121.209690, 116.014989, 114.283422, 110.820288, -107.357154, 103.894020, 112.551855, 117.746556, 116.014989, 114.283422, -112.551855, 116.014989, 114.283422, 110.820288, 107.357154, 102.162453, -192.203937, -145.451628, 145.451628, 150.646329, 147.183195, 150.646329, 147.183195, -145.451628, 145.451628, 124.672824, 102.162453, 102.162453, 102.162453, -102.162453, 102.162453, 126.404391, 122.941257, 107.357154, 102.162453, -173.156700, 121.209690, 121.209690, 116.014989, 114.283422, 110.820288, -103.894020, 100.430886, 100.430886, 116.014989, 117.746556, 114.283422, -112.551855, 114.283422, 110.820288, 109.088721, 102.162453, 96.967752, -226.835277, -138.525360, 155.841030, 150.646329, 143.720061, 152.377896, 154.109463, -145.451628, 143.720061, 131.599092, 110.820288, 102.162453, 102.162453, -102.162453, 100.430886, 102.162453, 167.961999, 110.820288, 107.357154, -122.941257, 117.746556, 121.209690, 126.404391, 114.283422, 109.088721, -105.625587, 100.430886, 100.430886, 107.357154, 116.014989, 114.283422, -110.820288, 112.551855, 109.088721, 109.088721, 105.625587, 98.699319, -258.003483, -148.914762, 157.572597, 159.304164, 150.646329, 147.183195, 152.377896, -143.720061, 140.256927, 135.062226, 119.478123, 105.625587, 102.162453, -102.162453, 102.162453, 102.162453, 105.625587, 143.720061, 124.672824, -116.014989, 116.014989, 119.478123, 119.478123, 114.283422, 110.820288, -105.625587, 124.672824, 96.967752, 98.699319, 110.820288, 110.820288, -110.820288, 110.820288, 112.551855, 199.130205, 259.735050, 161.035731, -261.466617, -167.961999, 154.109463, 157.572597, 159.304164, 154.109463, 152.377896, -128.135958, 138.525360, 135.062226, 122.941257, 112.551855, 102.162453, -100.430886, 102.162453, 100.430886, 102.162453, 122.941257, 124.672824, -116.014989, 121.209690, 121.209690, 119.478123, 116.014989, 110.820288, -109.088721, 114.283422, 96.967752, 93.504618, 98.699319, 102.162453, -110.820288, 150.646329, 240.687813, 280.513854, 277.050720, 221.640576, -244.150947, -162.767298, 166.230432, 167.961999, 162.767298, 154.109463, 141.988494, -122.941257, 121.209690, 131.599092, 126.404391, 116.014989, 105.625587, -102.162453, 102.162453, 100.430886, 102.162453, 105.625587, 122.941257, -116.014989, 129.867525, 121.209690, 117.746556, 121.209690, 112.551855, -109.088721, 109.088721, 102.162453, 96.967752, 93.504618, 95.236185, -155.841030, 209.519607, 258.003483, 290.903256, 238.956246, 249.345648, -271.856019, -171.425133, 173.156700, 161.035731, 161.035731, 141.988494, 138.525360, -121.209690, 107.357154, 121.209690, 124.672824, 116.014989, 109.088721, -103.894020, 103.894020, 100.430886, 100.430886, 103.894020, 117.746556, -121.209690, 121.209690, 119.478123, 117.746556, 136.793793, 117.746556, -110.820288, 107.357154, 103.894020, 102.162453, 98.699319, 98.699319, -152.377896, 207.788040, 261.466617, 280.513854, 266.661318, 258.003483, -268.392885, -178.351401, 171.425133, 164.498865, 162.767298, 145.451628, 126.404391, -116.014989, 107.357154, 112.551855, 119.478123, 116.014989, 110.820288, -109.088721, 110.820288, 109.088721, 102.162453, 103.894020, 112.551855, -122.941257, 119.478123, 119.478123, 116.014989, 135.062226, 112.551855, -109.088721, 105.625587, 102.162453, 105.625587, 103.894020, 117.746556, -173.156700, 221.640576, 268.392885, 268.392885, 263.198184, 268.392885, -283.976988, -180.082968, 176.619834, 171.425133, 164.498865, 148.914762, 128.135958, -116.014989, 105.625587, 105.625587, 114.283422, 112.551855, 109.088721, -109.088721, 110.820288, 112.551855, 109.088721, 103.894020, 109.088721, -121.209690, 119.478123, 116.014989, 116.014989, 116.014989, 112.551855, -107.357154, 103.894020, 100.430886, 98.699319, 107.357154, 100.430886, -122.941257, 202.593339, 259.735050, 266.661318, 271.856019, 268.392885, -282.245421, -180.082968, 174.888267, 171.425133, 157.572597, 145.451628, 128.135958, -102.162453, 102.162453, 107.357154, 110.820288, 109.088721, 105.625587, -107.357154, 110.820288, 110.820288, 110.820288, 105.625587, 103.894020, -119.478123, 117.746556, 116.014989, 119.478123, 116.014989, 112.551855, -107.357154, 102.162453, 100.430886, 98.699319, 98.699319, 96.967752, -102.162453, 180.082968, 237.224679, 254.540349, 275.319153, 278.782287, -273.587586, -180.082968, 174.888267, 171.425133, 155.841030, 147.183195, 133.330659, -103.894020, 98.699319, 103.894020, 107.357154, 107.357154, 107.357154, -109.088721, 110.820288, 112.551855, 112.551855, 114.283422, 173.156700, -116.014989, 116.014989, 119.478123, 119.478123, 116.014989, 112.551855, -109.088721, 103.894020, 100.430886, 96.967752, 93.504618, 95.236185, -96.967752, 133.330659, 211.251174, 245.882514, 287.440122, 271.856019, -259.735050, -180.082968, 174.888267, 167.961999, 159.304164, 133.330659, 136.793793, -110.820288, 98.699319, 98.699319, 107.357154, 107.357154, 107.357154, -110.820288, 112.551855, 114.283422, 112.551855, 199.130205, 238.956246, -223.372143, 110.820288, 117.746556, 121.209690, 117.746556, 114.283422, -110.820288, 103.894020, 100.430886, 96.967752, 91.773051, 91.773051, -96.967752, 107.357154, 199.130205, 247.614081, 271.856019, 270.124452, -275.319153 -}; - -const size_t array_double2_size = sizeof(array_double2); - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/test_arrays.h b/tiff/test/test_arrays.h deleted file mode 100755 index 2cdf9a9..0000000 --- a/tiff/test/test_arrays.h +++ /dev/null @@ -1,63 +0,0 @@ -/* $Id: test_arrays.h,v 1.3 2006-03-23 14:54:02 dron Exp $ */ - -/* - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library - * - * Few declarations for the test numerical arrays. - */ - -#ifndef _TEST_ARRAYS_ -#define _TEST_ARRAYS_ - -#include - -#define XSIZE 37 -#define YSIZE 23 - -extern const unsigned char byte_array1[]; -extern const size_t byte_array1_size; - -extern const unsigned char byte_array2[]; -extern const size_t byte_array2_size; - -extern const unsigned char byte_array3[]; -extern const size_t byte_array3_size; - -extern const float array_float1[]; -extern const size_t array_float1_size; - -extern const float array_float2[]; -extern const size_t array_float2_size; - -extern const double array_double1[]; -extern const size_t array_double1_size; - -extern const double array_double2[]; -extern const size_t array_double2_size; - -#endif /* _TEST_ARRAYS_ */ - -/* vim: set ts=8 sts=8 sw=8 noet: */ diff --git a/tiff/test/tiff2pdf.sh b/tiff/test/tiff2pdf.sh deleted file mode 100755 index 7669989..0000000 --- a/tiff/test/tiff2pdf.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiff2pdf -# -. ${srcdir:-.}/common.sh -f_test_stdout "${TIFF2PDF}" "${IMG_MINISWHITE_1C_1B}" "o-tiff2pdf.pdf" \ No newline at end of file diff --git a/tiff/test/tiff2ps-EPS1.sh b/tiff/test/tiff2ps-EPS1.sh deleted file mode 100755 index ebe6f04..0000000 --- a/tiff/test/tiff2ps-EPS1.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffps with PostScript Level 1 encapsulated output -# -. ${srcdir:-.}/common.sh -f_test_stdout "${TIFF2PS} -e -1" "${IMG_MINISWHITE_1C_1B}" "o-tiff2ps-EPS1.ps" \ No newline at end of file diff --git a/tiff/test/tiff2ps-PS1.sh b/tiff/test/tiff2ps-PS1.sh deleted file mode 100755 index 6592159..0000000 --- a/tiff/test/tiff2ps-PS1.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffps with PostScript Level 1 output -# -. ${srcdir:-.}/common.sh -f_test_stdout "${TIFF2PS} -a -p -1" "${IMG_MINISWHITE_1C_1B}" "o-tiff2ps-PS1.ps" \ No newline at end of file diff --git a/tiff/test/tiff2ps-PS2.sh b/tiff/test/tiff2ps-PS2.sh deleted file mode 100755 index 2a21606..0000000 --- a/tiff/test/tiff2ps-PS2.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffps with PostScript Level 2 output -# -. ${srcdir:-.}/common.sh -f_test_stdout "${TIFF2PS} -a -p -2" "${IMG_MINISWHITE_1C_1B}" "o-tiff2ps-PS2.ps" \ No newline at end of file diff --git a/tiff/test/tiff2ps-PS3.sh b/tiff/test/tiff2ps-PS3.sh deleted file mode 100755 index f9f34b6..0000000 --- a/tiff/test/tiff2ps-PS3.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffps with PostScript Level 3 output -# -. ${srcdir:-.}/common.sh -f_test_stdout "${TIFF2PS} -a -p -3" "${IMG_MINISWHITE_1C_1B}" "o-tiff2ps-PS3.ps" \ No newline at end of file diff --git a/tiff/test/tiff2rgba-logluv-3c-16b.sh b/tiff/test/tiff2rgba-logluv-3c-16b.sh deleted file mode 100755 index bc9b311..0000000 --- a/tiff/test/tiff2rgba-logluv-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/logluv-3c-16b.tiff" -outfile="o-tiff2rgba-logluv-3c-16b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-minisblack-1c-16b.sh b/tiff/test/tiff2rgba-minisblack-1c-16b.sh deleted file mode 100755 index 5be7e65..0000000 --- a/tiff/test/tiff2rgba-minisblack-1c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-16b.tiff" -outfile="o-tiff2rgba-minisblack-1c-16b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-minisblack-1c-8b.sh b/tiff/test/tiff2rgba-minisblack-1c-8b.sh deleted file mode 100755 index ce0507b..0000000 --- a/tiff/test/tiff2rgba-minisblack-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-8b.tiff" -outfile="o-tiff2rgba-minisblack-1c-8b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-minisblack-2c-8b-alpha.sh b/tiff/test/tiff2rgba-minisblack-2c-8b-alpha.sh deleted file mode 100755 index 2cbe81d..0000000 --- a/tiff/test/tiff2rgba-minisblack-2c-8b-alpha.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-2c-8b-alpha.tiff" -outfile="o-tiff2rgba-minisblack-2c-8b-alpha.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-miniswhite-1c-1b.sh b/tiff/test/tiff2rgba-miniswhite-1c-1b.sh deleted file mode 100755 index 3601502..0000000 --- a/tiff/test/tiff2rgba-miniswhite-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/miniswhite-1c-1b.tiff" -outfile="o-tiff2rgba-miniswhite-1c-1b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-palette-1c-1b.sh b/tiff/test/tiff2rgba-palette-1c-1b.sh deleted file mode 100755 index 091d798..0000000 --- a/tiff/test/tiff2rgba-palette-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-1b.tiff" -outfile="o-tiff2rgba-palette-1c-1b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-palette-1c-4b.sh b/tiff/test/tiff2rgba-palette-1c-4b.sh deleted file mode 100755 index ee3898e..0000000 --- a/tiff/test/tiff2rgba-palette-1c-4b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-4b.tiff" -outfile="o-tiff2rgba-palette-1c-4b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-palette-1c-8b.sh b/tiff/test/tiff2rgba-palette-1c-8b.sh deleted file mode 100755 index b1db606..0000000 --- a/tiff/test/tiff2rgba-palette-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-8b.tiff" -outfile="o-tiff2rgba-palette-1c-8b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-quad-tile.jpg.sh b/tiff/test/tiff2rgba-quad-tile.jpg.sh deleted file mode 100755 index e921b97..0000000 --- a/tiff/test/tiff2rgba-quad-tile.jpg.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/quad-tile.jpg.tiff" -outfile="o-tiff2rgba-quad-tile.jpg.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-rgb-3c-16b.sh b/tiff/test/tiff2rgba-rgb-3c-16b.sh deleted file mode 100755 index 954eb4f..0000000 --- a/tiff/test/tiff2rgba-rgb-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-16b.tiff" -outfile="o-tiff2rgba-rgb-3c-16b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiff2rgba-rgb-3c-8b.sh b/tiff/test/tiff2rgba-rgb-3c-8b.sh deleted file mode 100755 index 24f5cb0..0000000 --- a/tiff/test/tiff2rgba-rgb-3c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-8b.tiff" -outfile="o-tiff2rgba-rgb-3c-8b.tiff" -f_test_convert "$TIFF2RGBA" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcp-g3-1d-fill.sh b/tiff/test/tiffcp-g3-1d-fill.sh deleted file mode 100755 index ee12498..0000000 --- a/tiff/test/tiffcp-g3-1d-fill.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G3 compression, 1 dimensional -# encoding, and zero-filled boundaries. -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g3:1d:fill" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g3-1d-fill.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-g3-1d.sh b/tiff/test/tiffcp-g3-1d.sh deleted file mode 100755 index c11ef97..0000000 --- a/tiff/test/tiffcp-g3-1d.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G3 compression and 1 dimensional encoding. -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g3:1d" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g3-1d.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-g3-2d-fill.sh b/tiff/test/tiffcp-g3-2d-fill.sh deleted file mode 100755 index c25825d..0000000 --- a/tiff/test/tiffcp-g3-2d-fill.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G3 compression, 2 dimensional -# encoding, and zero-filled boundaries. -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g3:2d:fill" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g3-2d-fill.tiff" diff --git a/tiff/test/tiffcp-g3-2d.sh b/tiff/test/tiffcp-g3-2d.sh deleted file mode 100755 index 5a59dd2..0000000 --- a/tiff/test/tiffcp-g3-2d.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G3 compression and 2 dimensional encoding. -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g3:2d" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g3-2d.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-g3.sh b/tiff/test/tiffcp-g3.sh deleted file mode 100755 index d7a0107..0000000 --- a/tiff/test/tiffcp-g3.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G3 compression -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g3" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g3.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-g4.sh b/tiff/test/tiffcp-g4.sh deleted file mode 100755 index fb8967a..0000000 --- a/tiff/test/tiffcp-g4.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with G4 compression -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c g4" "${IMG_MINISWHITE_1C_1B}" "o-tiffcp-g4.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-logluv.sh b/tiff/test/tiffcp-logluv.sh deleted file mode 100755 index 3f62f57..0000000 --- a/tiff/test/tiffcp-logluv.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp with logluv compression -# -. ${srcdir:-.}/common.sh -f_test_convert "${TIFFCP} -c none" "${srcdir}/images/logluv-3c-16b.tiff" "o-tiffcp-logluv-raw.tiff" -f_test_convert "${TIFFCP} -c sgilog" "o-tiffcp-logluv-raw.tiff" "o-tiffcp-logluv-sgilog.tiff" \ No newline at end of file diff --git a/tiff/test/tiffcp-split-join.sh b/tiff/test/tiffcp-split-join.sh deleted file mode 100755 index d1e407c..0000000 --- a/tiff/test/tiffcp-split-join.sh +++ /dev/null @@ -1,16 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp + tiffsplit + tiffcp -# -# First we use tiffcp to join our test files into a multi-frame TIFF -# then we use tiffsplit to split them out again, and then we use -# tiffcp to recombine again. - -. ${srcdir:-.}/common.sh -conjoined=o-tiffcp-split-join-conjoined.tif -reconjoined=o-tiffcp-split-join-reconjoined.tif -splitfile=o-tiffcp-split-join-split- - -f_test_convert "${TIFFCP}" "${IMG_UNCOMPRESSED}" "${conjoined}" -f_test_convert "${TIFFSPLIT}" "${conjoined}" "${splitfile}" -f_test_convert "${TIFFCP}" "${splitfile}*" "${reconjoined}" \ No newline at end of file diff --git a/tiff/test/tiffcp-split.sh b/tiff/test/tiffcp-split.sh deleted file mode 100755 index a2f98e3..0000000 --- a/tiff/test/tiffcp-split.sh +++ /dev/null @@ -1,13 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffcp + tiffsplit -# -# First we use tiffcp to join our test files into a multi-frame TIFF -# and then we use tiffsplit to split them out again. -# -. ${srcdir:-.}/common.sh -conjoined=o-tiffcp-split-conjoined.tif -splitfile=o-tiffcp-split-split- - -f_test_convert "${TIFFCP}" "${IMG_UNCOMPRESSED}" "${conjoined}" -f_test_convert "${TIFFSPLIT}" "${conjoined}" "${splitfile}" \ No newline at end of file diff --git a/tiff/test/tiffcp-thumbnail.sh b/tiff/test/tiffcp-thumbnail.sh deleted file mode 100755 index 789cd80..0000000 --- a/tiff/test/tiffcp-thumbnail.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for thumbnail -# -. ${srcdir:-.}/common.sh - -outfile1=o-tiffcp-thumbnail-in.tif -outfile2=o-tiffcp-thumbnail-out.tif -f_test_convert "${TIFFCP} -c g3:1d" "${IMG_MINISWHITE_1C_1B}" "${outfile1}" -f_test_convert "${THUMBNAIL}" "${outfile1}" "${outfile2}" \ No newline at end of file diff --git a/tiff/test/tiffcrop-R90-logluv-3c-16b.sh b/tiff/test/tiffcrop-R90-logluv-3c-16b.sh deleted file mode 100755 index 9ed219e..0000000 --- a/tiff/test/tiffcrop-R90-logluv-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/logluv-3c-16b.tiff" -outfile="o-tiffcrop-R90-logluv-3c-16b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-minisblack-1c-16b.sh b/tiff/test/tiffcrop-R90-minisblack-1c-16b.sh deleted file mode 100755 index faee731..0000000 --- a/tiff/test/tiffcrop-R90-minisblack-1c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-16b.tiff" -outfile="o-tiffcrop-R90-minisblack-1c-16b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-minisblack-1c-8b.sh b/tiff/test/tiffcrop-R90-minisblack-1c-8b.sh deleted file mode 100755 index 7acd5e7..0000000 --- a/tiff/test/tiffcrop-R90-minisblack-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-8b.tiff" -outfile="o-tiffcrop-R90-minisblack-1c-8b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-minisblack-2c-8b-alpha.sh b/tiff/test/tiffcrop-R90-minisblack-2c-8b-alpha.sh deleted file mode 100755 index 2ef9039..0000000 --- a/tiff/test/tiffcrop-R90-minisblack-2c-8b-alpha.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-2c-8b-alpha.tiff" -outfile="o-tiffcrop-R90-minisblack-2c-8b-alpha.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-miniswhite-1c-1b.sh b/tiff/test/tiffcrop-R90-miniswhite-1c-1b.sh deleted file mode 100755 index cae85f2..0000000 --- a/tiff/test/tiffcrop-R90-miniswhite-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/miniswhite-1c-1b.tiff" -outfile="o-tiffcrop-R90-miniswhite-1c-1b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-palette-1c-1b.sh b/tiff/test/tiffcrop-R90-palette-1c-1b.sh deleted file mode 100755 index ca68b88..0000000 --- a/tiff/test/tiffcrop-R90-palette-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-1b.tiff" -outfile="o-tiffcrop-R90-palette-1c-1b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-palette-1c-4b.sh b/tiff/test/tiffcrop-R90-palette-1c-4b.sh deleted file mode 100755 index 3cd96eb..0000000 --- a/tiff/test/tiffcrop-R90-palette-1c-4b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-4b.tiff" -outfile="o-tiffcrop-R90-palette-1c-4b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-palette-1c-8b.sh b/tiff/test/tiffcrop-R90-palette-1c-8b.sh deleted file mode 100755 index daccfd3..0000000 --- a/tiff/test/tiffcrop-R90-palette-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-8b.tiff" -outfile="o-tiffcrop-R90-palette-1c-8b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-rgb-3c-16b.sh b/tiff/test/tiffcrop-R90-rgb-3c-16b.sh deleted file mode 100755 index b1dddc3..0000000 --- a/tiff/test/tiffcrop-R90-rgb-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-16b.tiff" -outfile="o-tiffcrop-R90-rgb-3c-16b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-R90-rgb-3c-8b.sh b/tiff/test/tiffcrop-R90-rgb-3c-8b.sh deleted file mode 100755 index 0a502c8..0000000 --- a/tiff/test/tiffcrop-R90-rgb-3c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-8b.tiff" -outfile="o-tiffcrop-R90-rgb-3c-8b.tiff" -f_test_convert "$TIFFCROP -R90" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-logluv-3c-16b.sh b/tiff/test/tiffcrop-doubleflip-logluv-3c-16b.sh deleted file mode 100755 index c1b19b9..0000000 --- a/tiff/test/tiffcrop-doubleflip-logluv-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/logluv-3c-16b.tiff" -outfile="o-tiffcrop-doubleflip-logluv-3c-16b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-minisblack-1c-16b.sh b/tiff/test/tiffcrop-doubleflip-minisblack-1c-16b.sh deleted file mode 100755 index 1e2c4c9..0000000 --- a/tiff/test/tiffcrop-doubleflip-minisblack-1c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-16b.tiff" -outfile="o-tiffcrop-doubleflip-minisblack-1c-16b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-minisblack-1c-8b.sh b/tiff/test/tiffcrop-doubleflip-minisblack-1c-8b.sh deleted file mode 100755 index 77798d9..0000000 --- a/tiff/test/tiffcrop-doubleflip-minisblack-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-8b.tiff" -outfile="o-tiffcrop-doubleflip-minisblack-1c-8b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-minisblack-2c-8b-alpha.sh b/tiff/test/tiffcrop-doubleflip-minisblack-2c-8b-alpha.sh deleted file mode 100755 index b5b9db6..0000000 --- a/tiff/test/tiffcrop-doubleflip-minisblack-2c-8b-alpha.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-2c-8b-alpha.tiff" -outfile="o-tiffcrop-doubleflip-minisblack-2c-8b-alpha.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-miniswhite-1c-1b.sh b/tiff/test/tiffcrop-doubleflip-miniswhite-1c-1b.sh deleted file mode 100755 index 07aab91..0000000 --- a/tiff/test/tiffcrop-doubleflip-miniswhite-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/miniswhite-1c-1b.tiff" -outfile="o-tiffcrop-doubleflip-miniswhite-1c-1b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-palette-1c-1b.sh b/tiff/test/tiffcrop-doubleflip-palette-1c-1b.sh deleted file mode 100755 index 581f7eb..0000000 --- a/tiff/test/tiffcrop-doubleflip-palette-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-1b.tiff" -outfile="o-tiffcrop-doubleflip-palette-1c-1b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-palette-1c-4b.sh b/tiff/test/tiffcrop-doubleflip-palette-1c-4b.sh deleted file mode 100755 index d09b2aa..0000000 --- a/tiff/test/tiffcrop-doubleflip-palette-1c-4b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-4b.tiff" -outfile="o-tiffcrop-doubleflip-palette-1c-4b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-palette-1c-8b.sh b/tiff/test/tiffcrop-doubleflip-palette-1c-8b.sh deleted file mode 100755 index 53a08ae..0000000 --- a/tiff/test/tiffcrop-doubleflip-palette-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-8b.tiff" -outfile="o-tiffcrop-doubleflip-palette-1c-8b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-rgb-3c-16b.sh b/tiff/test/tiffcrop-doubleflip-rgb-3c-16b.sh deleted file mode 100755 index 7165ad5..0000000 --- a/tiff/test/tiffcrop-doubleflip-rgb-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-16b.tiff" -outfile="o-tiffcrop-doubleflip-rgb-3c-16b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-doubleflip-rgb-3c-8b.sh b/tiff/test/tiffcrop-doubleflip-rgb-3c-8b.sh deleted file mode 100755 index 6bfa067..0000000 --- a/tiff/test/tiffcrop-doubleflip-rgb-3c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-8b.tiff" -outfile="o-tiffcrop-doubleflip-rgb-3c-8b.tiff" -f_test_convert "$TIFFCROP -F both" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-logluv-3c-16b.sh b/tiff/test/tiffcrop-extract-logluv-3c-16b.sh deleted file mode 100755 index 821694b..0000000 --- a/tiff/test/tiffcrop-extract-logluv-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/logluv-3c-16b.tiff" -outfile="o-tiffcrop-extract-logluv-3c-16b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-minisblack-1c-16b.sh b/tiff/test/tiffcrop-extract-minisblack-1c-16b.sh deleted file mode 100755 index 603fc1c..0000000 --- a/tiff/test/tiffcrop-extract-minisblack-1c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-16b.tiff" -outfile="o-tiffcrop-extract-minisblack-1c-16b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-minisblack-1c-8b.sh b/tiff/test/tiffcrop-extract-minisblack-1c-8b.sh deleted file mode 100755 index 6e473c5..0000000 --- a/tiff/test/tiffcrop-extract-minisblack-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-8b.tiff" -outfile="o-tiffcrop-extract-minisblack-1c-8b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-minisblack-2c-8b-alpha.sh b/tiff/test/tiffcrop-extract-minisblack-2c-8b-alpha.sh deleted file mode 100755 index 976e888..0000000 --- a/tiff/test/tiffcrop-extract-minisblack-2c-8b-alpha.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-2c-8b-alpha.tiff" -outfile="o-tiffcrop-extract-minisblack-2c-8b-alpha.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-miniswhite-1c-1b.sh b/tiff/test/tiffcrop-extract-miniswhite-1c-1b.sh deleted file mode 100755 index ca2b63c..0000000 --- a/tiff/test/tiffcrop-extract-miniswhite-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/miniswhite-1c-1b.tiff" -outfile="o-tiffcrop-extract-miniswhite-1c-1b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-palette-1c-1b.sh b/tiff/test/tiffcrop-extract-palette-1c-1b.sh deleted file mode 100755 index e4aca8e..0000000 --- a/tiff/test/tiffcrop-extract-palette-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-1b.tiff" -outfile="o-tiffcrop-extract-palette-1c-1b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-palette-1c-4b.sh b/tiff/test/tiffcrop-extract-palette-1c-4b.sh deleted file mode 100755 index 18884e4..0000000 --- a/tiff/test/tiffcrop-extract-palette-1c-4b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-4b.tiff" -outfile="o-tiffcrop-extract-palette-1c-4b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-palette-1c-8b.sh b/tiff/test/tiffcrop-extract-palette-1c-8b.sh deleted file mode 100755 index cd418e0..0000000 --- a/tiff/test/tiffcrop-extract-palette-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-8b.tiff" -outfile="o-tiffcrop-extract-palette-1c-8b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-rgb-3c-16b.sh b/tiff/test/tiffcrop-extract-rgb-3c-16b.sh deleted file mode 100755 index a3899d3..0000000 --- a/tiff/test/tiffcrop-extract-rgb-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-16b.tiff" -outfile="o-tiffcrop-extract-rgb-3c-16b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extract-rgb-3c-8b.sh b/tiff/test/tiffcrop-extract-rgb-3c-8b.sh deleted file mode 100755 index c03b037..0000000 --- a/tiff/test/tiffcrop-extract-rgb-3c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-8b.tiff" -outfile="o-tiffcrop-extract-rgb-3c-8b.tiff" -f_test_convert "$TIFFCROP -U px -E top -X 60 -Y 60" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-logluv-3c-16b.sh b/tiff/test/tiffcrop-extractz14-logluv-3c-16b.sh deleted file mode 100755 index a617ad9..0000000 --- a/tiff/test/tiffcrop-extractz14-logluv-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/logluv-3c-16b.tiff" -outfile="o-tiffcrop-extractz14-logluv-3c-16b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-minisblack-1c-16b.sh b/tiff/test/tiffcrop-extractz14-minisblack-1c-16b.sh deleted file mode 100755 index 320fd5a..0000000 --- a/tiff/test/tiffcrop-extractz14-minisblack-1c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-16b.tiff" -outfile="o-tiffcrop-extractz14-minisblack-1c-16b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-minisblack-1c-8b.sh b/tiff/test/tiffcrop-extractz14-minisblack-1c-8b.sh deleted file mode 100755 index 8df8578..0000000 --- a/tiff/test/tiffcrop-extractz14-minisblack-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-1c-8b.tiff" -outfile="o-tiffcrop-extractz14-minisblack-1c-8b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-minisblack-2c-8b-alpha.sh b/tiff/test/tiffcrop-extractz14-minisblack-2c-8b-alpha.sh deleted file mode 100755 index 3e8ee15..0000000 --- a/tiff/test/tiffcrop-extractz14-minisblack-2c-8b-alpha.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/minisblack-2c-8b-alpha.tiff" -outfile="o-tiffcrop-extractz14-minisblack-2c-8b-alpha.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-miniswhite-1c-1b.sh b/tiff/test/tiffcrop-extractz14-miniswhite-1c-1b.sh deleted file mode 100755 index 2cbffaa..0000000 --- a/tiff/test/tiffcrop-extractz14-miniswhite-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/miniswhite-1c-1b.tiff" -outfile="o-tiffcrop-extractz14-miniswhite-1c-1b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-palette-1c-1b.sh b/tiff/test/tiffcrop-extractz14-palette-1c-1b.sh deleted file mode 100755 index e0b305f..0000000 --- a/tiff/test/tiffcrop-extractz14-palette-1c-1b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-1b.tiff" -outfile="o-tiffcrop-extractz14-palette-1c-1b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-palette-1c-4b.sh b/tiff/test/tiffcrop-extractz14-palette-1c-4b.sh deleted file mode 100755 index 980b2bb..0000000 --- a/tiff/test/tiffcrop-extractz14-palette-1c-4b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-4b.tiff" -outfile="o-tiffcrop-extractz14-palette-1c-4b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-palette-1c-8b.sh b/tiff/test/tiffcrop-extractz14-palette-1c-8b.sh deleted file mode 100755 index af2e04c..0000000 --- a/tiff/test/tiffcrop-extractz14-palette-1c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/palette-1c-8b.tiff" -outfile="o-tiffcrop-extractz14-palette-1c-8b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-rgb-3c-16b.sh b/tiff/test/tiffcrop-extractz14-rgb-3c-16b.sh deleted file mode 100755 index 9bc76e3..0000000 --- a/tiff/test/tiffcrop-extractz14-rgb-3c-16b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-16b.tiff" -outfile="o-tiffcrop-extractz14-rgb-3c-16b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffcrop-extractz14-rgb-3c-8b.sh b/tiff/test/tiffcrop-extractz14-rgb-3c-8b.sh deleted file mode 100755 index 21f76b8..0000000 --- a/tiff/test/tiffcrop-extractz14-rgb-3c-8b.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/sh -# Generated file, master is Makefile.am -. ${srcdir:-.}/common.sh -infile="$srcdir/images/rgb-3c-8b.tiff" -outfile="o-tiffcrop-extractz14-rgb-3c-8b.tiff" -f_test_convert "$TIFFCROP -E left -Z1:4,2:4" $infile $outfile -f_tiffinfo_validate $outfile diff --git a/tiff/test/tiffdump.sh b/tiff/test/tiffdump.sh deleted file mode 100755 index 3cd7c10..0000000 --- a/tiff/test/tiffdump.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffdump -# -. ${srcdir:-.}/common.sh -f_test_reader "${TIFFDUMP}" "${IMG_MINISWHITE_1C_1B}" \ No newline at end of file diff --git a/tiff/test/tiffinfo.sh b/tiff/test/tiffinfo.sh deleted file mode 100755 index cb57248..0000000 --- a/tiff/test/tiffinfo.sh +++ /dev/null @@ -1,6 +0,0 @@ -#!/bin/sh -# -# Basic sanity check for tiffinfo. -# -. ${srcdir:-.}/common.sh -f_test_reader "${TIFFINFO} -c -D -d -j -s " "${IMG_MINISBLACK_1C_16B}" diff --git a/tiff/test/tifftest.h b/tiff/test/tifftest.h deleted file mode 100755 index 889c644..0000000 --- a/tiff/test/tifftest.h +++ /dev/null @@ -1,42 +0,0 @@ -/* $Id: tifftest.h,v 1.1 2008-04-15 14:18:36 dron Exp $ */ - -/* - * Copyright (c) 2008, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#ifndef _TIFFTEST_ -#define _TIFFTEST_ - -/* - * TIFF Library - * - * Header file for helper testing routines. - */ - -#include "tiffio.h" - -int CheckShortField(TIFF *, const ttag_t, const uint16); -int CheckShortPairedField(TIFF *, const ttag_t, const uint16*); -int CheckLongField(TIFF *, const ttag_t, const uint32); - -#endif /* _TIFFTEST_ */ - diff --git a/tiff/tools/Jamfile b/tiff/tools/Jamfile deleted file mode 100755 index 99f1307..0000000 --- a/tiff/tools/Jamfile +++ /dev/null @@ -1,20 +0,0 @@ - -PREF_CCFLAGS += $(CCOPTFLAG) ; # Turn optimisation on -#PREF_CCFLAGS += $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS += $(LINKDEBUGFLAG) ; - -HDRS = .. ../libtiff ; - -LINKLIBS = ../libtiff ../libport ../$(JPEGLIB) ; - -Main tiffcp : tiffcp.c ; - -Main tiff2bw : tiff2bw.c ; - -Main tiffset : tiffset.c ; - -Main tiffdump : tiffdump.c ; - -Main tiffinfo : tiffinfo.c ; - -Main tiffsplit : tiffsplit.c ; diff --git a/tiff/tools/Makefile.am b/tiff/tools/Makefile.am deleted file mode 100755 index 6497f2d..0000000 --- a/tiff/tools/Makefile.am +++ /dev/null @@ -1,145 +0,0 @@ -# Tag Image File Format (TIFF) Software -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. - -# Process this file with automake to produce Makefile.in. - -LIBPORT = $(top_builddir)/port/libport.la -LIBTIFF = $(top_builddir)/libtiff/libtiff.la - -EXTRA_DIST = Makefile.vc - -bin_PROGRAMS = \ - bmp2tiff \ - fax2ps \ - fax2tiff \ - gif2tiff \ - pal2rgb \ - ppm2tiff \ - ras2tiff \ - raw2tiff \ - rgb2ycbcr \ - thumbnail \ - tiff2bw \ - tiff2pdf \ - tiff2ps \ - tiff2rgba \ - tiffcmp \ - tiffcp \ - tiffcrop \ - tiffdither \ - tiffdump \ - tiffinfo \ - tiffmedian \ - tiffset \ - tiffsplit -if HAVE_OPENGL -bin_PROGRAMS += tiffgt -endif - -EXTRA_PROGRAMS = sgi2tiff sgisv ycbcr - -if HAVE_RPATH -AM_LDFLAGS = $(LIBDIR) -endif - -bmp2tiff_SOURCES = bmp2tiff.c -bmp2tiff_LDADD = $(LIBTIFF) $(LIBPORT) - -fax2ps_SOURCES = fax2ps.c -fax2ps_LDADD = $(LIBTIFF) $(LIBPORT) - -fax2tiff_SOURCES = fax2tiff.c -fax2tiff_LDADD = $(LIBTIFF) $(LIBPORT) - -gif2tiff_SOURCES = gif2tiff.c 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@@ -# $Id: Makefile.vc,v 1.15 2009-01-22 20:53:07 fwarmerdam Exp $ -# -# Copyright (C) 2004, Andrey Kiselev -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, provided -# that (i) the above copyright notices and this permission notice appear in -# all copies of the software and related documentation, and (ii) the names of -# Sam Leffler and Silicon Graphics may not be used in any advertising or -# publicity relating to the software without the specific, prior written -# permission of Sam Leffler and Silicon Graphics. -# -# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, -# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY -# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -# -# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR -# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, -# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF -# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -# OF THIS SOFTWARE. -# -# Makefile for MS Visual C and Watcom C compilers. -# -# To build: -# C:\libtiff\tools> nmake /f makefile.vc - -!INCLUDE ..\nmake.opt - -TARGETS = bmp2tiff.exe tiffinfo.exe tiffdump.exe fax2tiff.exe \ - fax2ps.exe gif2tiff.exe pal2rgb.exe ppm2tiff.exe \ - rgb2ycbcr.exe thumbnail.exe ras2tiff.exe raw2tiff.exe \ - tiff2bw.exe tiff2rgba.exe tiff2pdf.exe tiff2ps.exe \ - tiffcmp.exe tiffcp.exe tiffcrop.exe tiffdither.exe \ - tiffmedian.exe tiffset.exe tiffsplit.exe - -INCL = -I..\libtiff -I..\port -DNEED_LIBPORT -LIBS = $(LIBS) ..\port\libport.lib ..\libtiff\libtiff.lib - -default: $(TARGETS) - -.c.exe: - $(CC) $(CFLAGS) $*.c $(EXTRA_OBJ) $(LIBS) - -tiffgt.exe: - $(CC) $(CFLAGS) tiffgt.c $(EXTRA_OBJ) $(LIBS) - -clean: - -del *.exe - -del *.exe.manifest - -del *.obj diff --git a/tiff/tools/bmp2tiff.c b/tiff/tools/bmp2tiff.c deleted file mode 100755 index 48fcdc2..0000000 --- a/tiff/tools/bmp2tiff.c +++ /dev/null @@ -1,869 +0,0 @@ -/* $Id: bmp2tiff.c,v 1.24 2014-12-21 15:15:32 erouault Exp $ - * - * Project: libtiff tools - * Purpose: Convert Windows BMP files in TIFF. - * Author: Andrey Kiselev, dron@ak4719.spb.edu - * - ****************************************************************************** - * Copyright (c) 2004, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#if HAVE_FCNTL_H -# include -#endif - -#if HAVE_SYS_TYPES_H -# include -#endif - -#if HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#ifndef O_BINARY -# define O_BINARY 0 -#endif - -enum BMPType -{ - BMPT_WIN4, /* BMP used in Windows 3.0/NT 3.51/95 */ - BMPT_WIN5, /* BMP used in Windows NT 4.0/98/Me/2000/XP */ - BMPT_OS21, /* BMP used in OS/2 PM 1.x */ - BMPT_OS22 /* BMP used in OS/2 PM 2.x */ -}; - -/* - * Bitmap file consists of a BMPFileHeader structure followed by a - * BMPInfoHeader structure. An array of BMPColorEntry structures (also called - * a colour table) follows the bitmap information header structure. The colour - * table is followed by a second array of indexes into the colour table (the - * actual bitmap data). Data may be comressed, for 4-bpp and 8-bpp used RLE - * compression. - * - * +---------------------+ - * | BMPFileHeader | - * +---------------------+ - * | BMPInfoHeader | - * +---------------------+ - * | BMPColorEntry array | - * +---------------------+ - * | Colour-index array | - * +---------------------+ - * - * All numbers stored in Intel order with least significant byte first. - */ - -enum BMPComprMethod -{ - BMPC_RGB = 0L, /* Uncompressed */ - BMPC_RLE8 = 1L, /* RLE for 8 bpp images */ - BMPC_RLE4 = 2L, /* RLE for 4 bpp images */ - BMPC_BITFIELDS = 3L, /* Bitmap is not compressed and the colour table - * consists of three DWORD color masks that specify - * the red, green, and blue components of each - * pixel. This is valid when used with - * 16- and 32-bpp bitmaps. */ - BMPC_JPEG = 4L, /* Indicates that the image is a JPEG image. */ - BMPC_PNG = 5L /* Indicates that the image is a PNG image. */ -}; - -enum BMPLCSType /* Type of logical color space. */ -{ - BMPLT_CALIBRATED_RGB = 0, /* This value indicates that endpoints and - * gamma values are given in the appropriate - * fields. */ - BMPLT_DEVICE_RGB = 1, - BMPLT_DEVICE_CMYK = 2 -}; - -typedef struct -{ - int32 iCIEX; - int32 iCIEY; - int32 iCIEZ; -} BMPCIEXYZ; - -typedef struct /* This structure contains the x, y, and z */ -{ /* coordinates of the three colors that */ - /* correspond */ - BMPCIEXYZ iCIERed; /* to the red, green, and blue endpoints for */ - BMPCIEXYZ iCIEGreen; /* a specified logical color space. */ - BMPCIEXYZ iCIEBlue; -} BMPCIEXYZTriple; - -typedef struct -{ - char bType[2]; /* Signature "BM" */ - uint32 iSize; /* Size in bytes of the bitmap file. Should - * always be ignored while reading because - * of error in Windows 3.0 SDK's description - * of this field */ - uint16 iReserved1; /* Reserved, set as 0 */ - uint16 iReserved2; /* Reserved, set as 0 */ - uint32 iOffBits; /* Offset of the image from file start in bytes */ -} BMPFileHeader; - -/* File header size in bytes: */ -const int BFH_SIZE = 14; - -typedef struct -{ - uint32 iSize; /* Size of BMPInfoHeader structure in bytes. - * Should be used to determine start of the - * colour table */ - int32 iWidth; /* Image width */ - int32 iHeight; /* Image height. If positive, image has bottom - * left origin, if negative --- top left. */ - int16 iPlanes; /* Number of image planes (must be set to 1) */ - int16 iBitCount; /* Number of bits per pixel (1, 4, 8, 16, 24 - * or 32). If 0 then the number of bits per - * pixel is specified or is implied by the - * JPEG or PNG format. */ - uint32 iCompression; /* Compression method */ - uint32 iSizeImage; /* Size of uncomressed image in bytes. May - * be 0 for BMPC_RGB bitmaps. If iCompression - * is BI_JPEG or BI_PNG, iSizeImage indicates - * the size of the JPEG or PNG image buffer. */ - int32 iXPelsPerMeter; /* X resolution, pixels per meter (0 if not used) */ - int32 iYPelsPerMeter; /* Y resolution, pixels per meter (0 if not used) */ - uint32 iClrUsed; /* Size of colour table. If 0, iBitCount should - * be used to calculate this value - * (1< 0) ? info_hdr.iHeight : -info_hdr.iHeight; - if( width <= 0 || length <= 0 ) - { - TIFFError(infilename, - "Invalid dimensions of BMP file" ); - close(fd); - return -1; - } - - switch (info_hdr.iBitCount) - { - case 1: - case 4: - case 8: - nbands = 1; - depth = info_hdr.iBitCount; - photometric = PHOTOMETRIC_PALETTE; - /* Allocate memory for colour table and read it. */ - if (info_hdr.iClrUsed) - clr_tbl_size = - ((uint32)(1< 0) - offset = file_hdr.iOffBits+(length-row-1)*size; - else - offset = file_hdr.iOffBits + row * size; - if (lseek(fd, offset, SEEK_SET) == (off_t)-1) { - TIFFError(infilename, - "scanline %lu: Seek error", - (unsigned long) row); - break; - } - - if (read(fd, scanbuf, size) < 0) { - TIFFError(infilename, - "scanline %lu: Read error", - (unsigned long) row); - break; - } - - rearrangePixels(scanbuf, width, info_hdr.iBitCount); - - if (TIFFWriteScanline(out, scanbuf, row, 0)<0) { - TIFFError(infilename, - "scanline %lu: Write error", - (unsigned long) row); - break; - } - } - - _TIFFfree(scanbuf); - -/* -------------------------------------------------------------------- */ -/* Read compressed image data. */ -/* -------------------------------------------------------------------- */ - - } else if ( info_hdr.iCompression == BMPC_RLE8 - || info_hdr.iCompression == BMPC_RLE4 ) { - uint32 i, j, k, runlength; - uint32 compr_size, uncompr_size; - unsigned char *comprbuf; - unsigned char *uncomprbuf; - - compr_size = file_hdr.iSize - file_hdr.iOffBits; - uncompr_size = width * length; - /* Detect int overflow */ - if( uncompr_size / width != length ) - { - TIFFError(infilename, - "Invalid dimensions of BMP file" ); - close(fd); - return -1; - } - comprbuf = (unsigned char *) _TIFFmalloc( compr_size ); - if (!comprbuf) { - TIFFError(infilename, - "Can't allocate space for compressed scanline buffer"); - goto bad3; - } - uncomprbuf = (unsigned char *)_TIFFmalloc(uncompr_size); - if (!uncomprbuf) { - TIFFError(infilename, - "Can't allocate space for uncompressed scanline buffer"); - goto bad3; - } - - lseek(fd, file_hdr.iOffBits, SEEK_SET); - read(fd, comprbuf, compr_size); - i = 0; - j = 0; - if (info_hdr.iBitCount == 8) { /* RLE8 */ - while(j < uncompr_size && i < compr_size) { - if ( comprbuf[i] ) { - runlength = comprbuf[i++]; - while( runlength > 0 - && j < uncompr_size - && i < compr_size ) { - uncomprbuf[j++] = comprbuf[i]; - runlength--; - } - i++; - } else { - i++; - if (comprbuf[i] == 0) /* Next scanline */ - i++; - else if (comprbuf[i] == 1) /* End of image */ - break; - else if (comprbuf[i] == 2) { /* Move to... */ - i++; - if (i < compr_size - 1) { - j+=comprbuf[i]+comprbuf[i+1]*width; - i += 2; - } - else - break; - } else { /* Absolute mode */ - runlength = comprbuf[i++]; - for (k = 0; k < runlength && j < uncompr_size && i < compr_size; k++) - uncomprbuf[j++] = comprbuf[i++]; - if ( k & 0x01 ) - i++; - } - } - } - } - else { /* RLE4 */ - while( j < uncompr_size && i < compr_size ) { - if ( comprbuf[i] ) { - runlength = comprbuf[i++]; - while( runlength > 0 && j < uncompr_size && i < compr_size ) { - if ( runlength & 0x01 ) - uncomprbuf[j++] = (comprbuf[i] & 0xF0) >> 4; - else - uncomprbuf[j++] = comprbuf[i] & 0x0F; - runlength--; - } - i++; - } else { - i++; - if (comprbuf[i] == 0) /* Next scanline */ - i++; - else if (comprbuf[i] == 1) /* End of image */ - break; - else if (comprbuf[i] == 2) { /* Move to... */ - i++; - if (i < compr_size - 1) { - j+=comprbuf[i]+comprbuf[i+1]*width; - i += 2; - } - else - break; - } else { /* Absolute mode */ - runlength = comprbuf[i++]; - for (k = 0; k < runlength && j < uncompr_size && i < compr_size; k++) { - if (k & 0x01) - uncomprbuf[j++] = comprbuf[i++] & 0x0F; - else - uncomprbuf[j++] = (comprbuf[i] & 0xF0) >> 4; - } - if (k & 0x01) - i++; - } - } - } - } - - _TIFFfree(comprbuf); - - for (row = 0; row < length; row++) { - if (TIFFWriteScanline(out, - uncomprbuf + (length - row - 1) * width, - row, 0) < 0) { - TIFFError(infilename, - "scanline %lu: Write error.\n", - (unsigned long) row); - } - } - - _TIFFfree(uncomprbuf); - } - TIFFWriteDirectory(out); - if (blue_tbl) { - _TIFFfree(blue_tbl); - blue_tbl=NULL; - } - if (green_tbl) { - _TIFFfree(green_tbl); - green_tbl=NULL; - } - if (red_tbl) { - _TIFFfree(red_tbl); - red_tbl=NULL; - } - } - -bad3: - if (blue_tbl) - _TIFFfree(blue_tbl); -bad2: - if (green_tbl) - _TIFFfree(green_tbl); -bad1: - if (red_tbl) - _TIFFfree(red_tbl); -bad: - close(fd); - - if (out) - TIFFClose(out); - return 0; -} - -/* - * Image data in BMP file stored in BGR (or ABGR) format. We should rearrange - * pixels to RGB (RGBA) format. - */ -static void -rearrangePixels(char *buf, uint32 width, uint32 bit_count) -{ - char tmp; - uint32 i; - - switch(bit_count) { - case 16: /* FIXME: need a sample file */ - break; - case 24: - for (i = 0; i < width; i++, buf += 3) { - tmp = *buf; - *buf = *(buf + 2); - *(buf + 2) = tmp; - } - break; - case 32: - { - char *buf1 = buf; - - for (i = 0; i < width; i++, buf += 4) { - tmp = *buf; - *buf1++ = *(buf + 2); - *buf1++ = *(buf + 1); - *buf1++ = tmp; - } - } - break; - default: - break; - } -} - -static int -processCompressOptions(char* opt) -{ - if (strcmp(opt, "none") == 0) - compression = COMPRESSION_NONE; - else if (strcmp(opt, "packbits") == 0) - compression = COMPRESSION_PACKBITS; - else if (strncmp(opt, "jpeg", 4) == 0) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strncmp(opt, "lzw", 3) == 0) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strncmp(opt, "zip", 3) == 0) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -static char* stuff[] = { -"bmp2tiff --- convert Windows BMP files to TIFF", -"usage: bmp2tiff [options] input.bmp [input2.bmp ...] output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c jpeg[:opts]compress output with JPEG encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -" -o out.tif write output to out.tif", -" -h this help message", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/fax2ps.c b/tiff/tools/fax2ps.c deleted file mode 100755 index 14dac71..0000000 --- a/tiff/tools/fax2ps.c +++ /dev/null @@ -1,454 +0,0 @@ -/* $Id: fax2ps.c,v 1.28 2014-11-20 16:47:21 erouault Exp $" */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ -#include "tif_config.h" - -#include -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -float defxres = 204.; /* default x resolution (pixels/inch) */ -float defyres = 98.; /* default y resolution (lines/inch) */ -const float half = 0.5; -const float points = 72.0; -float pageWidth = 0; /* image page width (inches) */ -float pageHeight = 0; /* image page length (inches) */ -int scaleToPage = 0; /* if true, scale raster to page dimensions */ -int totalPages = 0; /* total # pages printed */ -int row; /* current output row */ -int maxline = 512; /* max output line of PostScript */ - -/* - * Turn a bit-mapped scanline into the appropriate sequence - * of PostScript characters to be rendered. - * - * Original version written by Bret D. Whissel, - * Florida State University Meteorology Department - * March 13-15, 1995. - */ -static void -printruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx) -{ - static struct { - char white, black; - unsigned short width; - } WBarr[] = { - { 'd', 'n', 512 }, { 'e', 'o', 256 }, { 'f', 'p', 128 }, - { 'g', 'q', 64 }, { 'h', 'r', 32 }, { 'i', 's', 16 }, - { 'j', 't', 8 }, { 'k', 'u', 4 }, { 'l', 'v', 2 }, - { 'm', 'w', 1 } - }; - static char* svalue = - " !\"#$&'*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abc"; - int colormode = 1; /* 0 for white, 1 for black */ - uint32 runlength = 0; - int n = maxline; - uint32 x = 0; - int l; - - (void) buf; - printf("%d m(", row++); - while (runs < erun) { - if (runlength <= 0) { - colormode ^= 1; - runlength = *runs++; - if (x+runlength > lastx) - runlength = runs[-1] = lastx-x; - x += runlength; - if (!colormode && runs == erun) - break; /* don't bother printing the final white run */ - } - /* - * If a runlength is greater than 6 pixels, then spit out - * black or white characters until the runlength drops to - * 6 or less. Once a runlength is <= 6, then combine black - * and white runlengths until a 6-pixel pattern is obtained. - * Then write out the special character. Six-pixel patterns - * were selected since 64 patterns is the largest power of - * two less than the 92 "easily printable" PostScript - * characters (i.e., no escape codes or octal chars). - */ - l = 0; - while (runlength > 6) { /* Run is greater than six... */ - if (runlength >= WBarr[l].width) { - if (n == 0) { - putchar('\n'); - n = maxline; - } - putchar(colormode ? WBarr[l].black : WBarr[l].white), n--; - runlength -= WBarr[l].width; - } else - l++; - } - while (runlength > 0 && runlength <= 6) { - uint32 bitsleft = 6; - int t = 0; - while (bitsleft) { - if (runlength <= bitsleft) { - if (colormode) - t |= ((1 << runlength)-1) << (bitsleft-runlength); - bitsleft -= runlength; - runlength = 0; - if (bitsleft) { - if (runs >= erun) - break; - colormode ^= 1; - runlength = *runs++; - if (x+runlength > lastx) - runlength = runs[-1] = lastx-x; - x += runlength; - } - } else { /* runlength exceeds bits left */ - if (colormode) - t |= ((1 << bitsleft)-1); - runlength -= bitsleft; - bitsleft = 0; - } - } - if (n == 0) { - putchar('\n'); - n = maxline; - } - putchar(svalue[t]), n--; - } - } - printf(")s\n"); -} - -/* - * Create a special PostScript font for printing FAX documents. By taking - * advantage of the font-cacheing mechanism, a substantial speed-up in - * rendering time is realized. - */ -static void -emitFont(FILE* fd) -{ - static const char* fontPrologue[] = { - "/newfont 10 dict def newfont begin /FontType 3 def /FontMatrix [1", - "0 0 1 0 0] def /FontBBox [0 0 512 1] def /Encoding 256 array def", - "0 1 31{Encoding exch /255 put}for 120 1 255{Encoding exch /255", - "put}for Encoding 37 /255 put Encoding 40 /255 put Encoding 41 /255", - "put Encoding 92 /255 put /count 0 def /ls{Encoding exch count 3", - "string cvs cvn put /count count 1 add def}def 32 1 36{ls}for", - "38 1 39{ls}for 42 1 91{ls}for 93 1 99{ls}for /count 100", - "def 100 1 119{ls}for /CharDict 5 dict def CharDict begin /white", - "{dup 255 eq{pop}{1 dict begin 100 sub neg 512 exch bitshift", - "/cw exch def cw 0 0 0 cw 1 setcachedevice end}ifelse}def /black", - "{dup 255 eq{pop}{1 dict begin 110 sub neg 512 exch bitshift", - "/cw exch def cw 0 0 0 cw 1 setcachedevice 0 0 moveto cw 0 rlineto", - "0 1 rlineto cw neg 0 rlineto closepath fill end}ifelse}def /numbuild", - "{dup 255 eq{pop}{6 0 0 0 6 1 setcachedevice 0 1 5{0 moveto", - "dup 32 and 32 eq{1 0 rlineto 0 1 rlineto -1 0 rlineto closepath", - "fill newpath}if 1 bitshift}for pop}ifelse}def /.notdef {}", - "def /255 {}def end /BuildChar{exch begin dup 110 ge{Encoding", - "exch get 3 string cvs cvi CharDict /black get}{dup 100 ge {Encoding", - "exch get 3 string cvs cvi CharDict /white get}{Encoding exch get", - "3 string cvs cvi CharDict /numbuild get}ifelse}ifelse exec end", - "}def end /Bitfont newfont definefont 1 scalefont setfont", - NULL - }; - int i; - for (i = 0; fontPrologue[i] != NULL; i++) - fprintf(fd, "%s\n", fontPrologue[i]); -} - -void -printTIF(TIFF* tif, uint16 pageNumber) -{ - uint32 w, h; - uint16 unit, compression; - float xres, yres, scale = 1.0; - tstrip_t s, ns; - time_t creation_time; - - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w); - if (!TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression) - || compression < COMPRESSION_CCITTRLE - || compression > COMPRESSION_CCITT_T6) - return; - if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) || !xres) { - TIFFWarning(TIFFFileName(tif), - "No x-resolution, assuming %g dpi", defxres); - xres = defxres; - } - if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) || !yres) { - TIFFWarning(TIFFFileName(tif), - "No y-resolution, assuming %g lpi", defyres); - yres = defyres; /* XXX */ - } - if (TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &unit) && - unit == RESUNIT_CENTIMETER) { - xres *= 2.54F; - yres *= 2.54F; - } - if (pageWidth == 0) - pageWidth = w / xres; - if (pageHeight == 0) - pageHeight = h / yres; - - printf("%%!PS-Adobe-3.0\n"); - printf("%%%%Creator: fax2ps\n"); -#ifdef notdef - printf("%%%%Title: %s\n", file); -#endif - creation_time = time(0); - printf("%%%%CreationDate: %s", ctime(&creation_time)); - printf("%%%%Origin: 0 0\n"); - printf("%%%%BoundingBox: 0 0 %u %u\n", - (int)(pageWidth * points), (int)(pageHeight * points)); /* XXX */ - printf("%%%%Pages: (atend)\n"); - printf("%%%%EndComments\n"); - printf("%%%%BeginProlog\n"); - emitFont(stdout); - printf("/d{bind def}def\n"); /* bind and def proc */ - printf("/m{0 exch moveto}d\n"); - printf("/s{show}d\n"); - printf("/p{showpage}d \n"); /* end page */ - printf("%%%%EndProlog\n"); - printf("%%%%Page: \"%u\" %u\n", pageNumber, pageNumber); - printf("/$pageTop save def gsave\n"); - if (scaleToPage) - scale = pageHeight / (h/yres) < pageWidth / (w/xres) ? - pageHeight / (h/yres) : pageWidth / (w/xres); - printf("%g %g translate\n", - points * (pageWidth - scale*w/xres) * half, - points * (scale*h/yres + (pageHeight - scale*h/yres) * half)); - printf("%g %g scale\n", points/xres*scale, -points/yres*scale); - printf("0 setgray\n"); - TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, printruns); - ns = TIFFNumberOfStrips(tif); - row = 0; - for (s = 0; s < ns; s++) - (void) TIFFReadEncodedStrip(tif, s, (tdata_t) NULL, (tsize_t) -1); - printf("p\n"); - printf("grestore $pageTop restore\n"); - totalPages++; -} - -#define GetPageNumber(tif) \ -TIFFGetField(tif, TIFFTAG_PAGENUMBER, &pn, &ptotal) - -int -findPage(TIFF* tif, uint16 pageNumber) -{ - uint16 pn = (uint16) -1; - uint16 ptotal = (uint16) -1; - if (GetPageNumber(tif)) { - while (pn != (pageNumber-1) && TIFFReadDirectory(tif) && GetPageNumber(tif)) - ; - return (pn == (pageNumber-1)); - } else - return (TIFFSetDirectory(tif, (tdir_t)(pageNumber-1))); -} - -void -fax2ps(TIFF* tif, uint16 npages, uint16* pages, char* filename) -{ - if (npages > 0) { - uint16 pn, ptotal; - int i; - - if (!GetPageNumber(tif)) - fprintf(stderr, "%s: No page numbers, counting directories.\n", - filename); - for (i = 0; i < npages; i++) { - if (findPage(tif, pages[i])) - printTIF(tif, pages[i]); - else - fprintf(stderr, "%s: No page number %d\n", filename, pages[i]); - } - } else { - uint16 pageNumber = 0; - do - printTIF(tif, pageNumber++); - while (TIFFReadDirectory(tif)); - } -} - -#undef GetPageNumber - -static int -pcompar(const void* va, const void* vb) -{ - const int* pa = (const int*) va; - const int* pb = (const int*) vb; - return (*pa - *pb); -} - -static void usage(int code); - -int -main(int argc, char** argv) -{ - extern int optind; - extern char* optarg; - uint16 *pages = NULL, npages = 0, pageNumber; - int c, dowarnings = 0; /* if 1, enable library warnings */ - TIFF* tif; - - while ((c = getopt(argc, argv, "l:p:x:y:W:H:wS")) != -1) - switch (c) { - case 'H': /* page height */ - pageHeight = (float)atof(optarg); - break; - case 'S': /* scale to page */ - scaleToPage = 1; - break; - case 'W': /* page width */ - pageWidth = (float)atof(optarg); - break; - case 'p': /* print specific page */ - pageNumber = (uint16)atoi(optarg); - if (pages) - pages = (uint16*) realloc(pages, (npages+1)*sizeof(uint16)); - else - pages = (uint16*) malloc(sizeof(uint16)); - if( pages == NULL ) - { - fprintf(stderr, "Out of memory\n"); - exit(-1); - } - pages[npages++] = pageNumber; - break; - case 'w': - dowarnings = 1; - break; - case 'x': - defxres = (float)atof(optarg); - break; - case 'y': - defyres = (float)atof(optarg); - break; - case 'l': - maxline = atoi(optarg); - break; - case '?': - usage(-1); - } - if (npages > 0) - qsort(pages, npages, sizeof(uint16), pcompar); - if (!dowarnings) - TIFFSetWarningHandler(0); - if (optind < argc) { - do { - tif = TIFFOpen(argv[optind], "r"); - if (tif) { - fax2ps(tif, npages, pages, argv[optind]); - TIFFClose(tif); - } else - fprintf(stderr, "%s: Can not open, or not a TIFF file.\n", - argv[optind]); - } while (++optind < argc); - } else { - int n; - FILE* fd; - char buf[16*1024]; - - fd = tmpfile(); - if (fd == NULL) { - fprintf(stderr, "Could not obtain temporary file.\n"); - exit(-2); - } -#if defined(HAVE_SETMODE) && defined(O_BINARY) - setmode(fileno(stdin), O_BINARY); -#endif - while ((n = read(fileno(stdin), buf, sizeof (buf))) > 0) - write(fileno(fd), buf, n); - lseek(fileno(fd), 0, SEEK_SET); -#if defined(_WIN32) && defined(USE_WIN32_FILEIO) - tif = TIFFFdOpen(_get_osfhandle(fileno(fd)), "temp", "r"); -#else - tif = TIFFFdOpen(fileno(fd), "temp", "r"); -#endif - if (tif) { - fax2ps(tif, npages, pages, ""); - TIFFClose(tif); - } else - fprintf(stderr, "Can not open, or not a TIFF file.\n"); - fclose(fd); - } - printf("%%%%Trailer\n"); - printf("%%%%Pages: %u\n", totalPages); - printf("%%%%EOF\n"); - - return (0); -} - -char* stuff[] = { -"usage: fax2ps [options] [input.tif ...]", -"where options are:", -" -w suppress warning messages", -" -l chars set maximum output line length for generated PostScript", -" -p page# select page to print (can use multiple times)", -" -x xres set default horizontal resolution of input data (dpi)", -" -y yres set default vertical resolution of input data (lpi)", -" -S scale output to page size", -" -W width set output page width (inches), default is 8.5", -" -H height set output page height (inches), default is 11", -NULL -}; - -static void -usage(int code) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(code); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/fax2tiff.c b/tiff/tools/fax2tiff.c deleted file mode 100755 index 8881e5f..0000000 --- a/tiff/tools/fax2tiff.c +++ /dev/null @@ -1,469 +0,0 @@ -/* $Id: fax2tiff.c,v 1.22 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1990-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * Convert a CCITT Group 3 or 4 FAX file to TIFF Group 3 or 4 format. - */ -#include "tif_config.h" - -#include -#include /* should have atof & getopt */ - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffiop.h" - -#ifndef EXIT_SUCCESS -# define EXIT_SUCCESS 0 -#endif -#ifndef EXIT_FAILURE -# define EXIT_FAILURE 1 -#endif - -#define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) - -TIFF *faxTIFF; -char *rowbuf; -char *refbuf; - -uint32 xsize = 1728; -int verbose; -int stretch; -uint16 badfaxrun; -uint32 badfaxlines; - -int copyFaxFile(TIFF* tifin, TIFF* tifout); -static void usage(void); - -int -main(int argc, char* argv[]) -{ - FILE *in; - TIFF *out = NULL; - TIFFErrorHandler whandler = NULL; - int compression_in = COMPRESSION_CCITTFAX3; - int compression_out = COMPRESSION_CCITTFAX3; - int fillorder_in = FILLORDER_LSB2MSB; - int fillorder_out = FILLORDER_LSB2MSB; - uint32 group3options_in = 0; /* 1d-encoded */ - uint32 group3options_out = 0; /* 1d-encoded */ - uint32 group4options_in = 0; /* compressed */ - uint32 group4options_out = 0; /* compressed */ - uint32 defrowsperstrip = (uint32) 0; - uint32 rowsperstrip; - int photometric_in = PHOTOMETRIC_MINISWHITE; - int photometric_out = PHOTOMETRIC_MINISWHITE; - int mode = FAXMODE_CLASSF; - int rows; - int c; - int pn, npages; - float resY = 196.0; - extern int optind; - extern char* optarg; - - - while ((c = getopt(argc, argv, "R:X:o:1234ABLMPUW5678abcflmprsuvwz?")) != -1) - switch (c) { - /* input-related options */ - case '3': /* input is g3-encoded */ - compression_in = COMPRESSION_CCITTFAX3; - break; - case '4': /* input is g4-encoded */ - compression_in = COMPRESSION_CCITTFAX4; - break; - case 'U': /* input is uncompressed (g3 and g4) */ - group3options_in |= GROUP3OPT_UNCOMPRESSED; - group4options_in |= GROUP4OPT_UNCOMPRESSED; - break; - case '1': /* input is 1d-encoded (g3 only) */ - group3options_in &= ~GROUP3OPT_2DENCODING; - break; - case '2': /* input is 2d-encoded (g3 only) */ - group3options_in |= GROUP3OPT_2DENCODING; - break; - case 'P': /* input has not-aligned EOL (g3 only) */ - group3options_in &= ~GROUP3OPT_FILLBITS; - break; - case 'A': /* input has aligned EOL (g3 only) */ - group3options_in |= GROUP3OPT_FILLBITS; - break; - case 'W': /* input has 0 mean white */ - photometric_in = PHOTOMETRIC_MINISWHITE; - break; - case 'B': /* input has 0 mean black */ - photometric_in = PHOTOMETRIC_MINISBLACK; - break; - case 'L': /* input has lsb-to-msb fillorder */ - fillorder_in = FILLORDER_LSB2MSB; - break; - case 'M': /* input has msb-to-lsb fillorder */ - fillorder_in = FILLORDER_MSB2LSB; - break; - case 'R': /* input resolution */ - resY = (float) atof(optarg); - break; - case 'X': /* input width */ - xsize = (uint32) atoi(optarg); - break; - - /* output-related options */ - case '7': /* generate g3-encoded output */ - compression_out = COMPRESSION_CCITTFAX3; - break; - case '8': /* generate g4-encoded output */ - compression_out = COMPRESSION_CCITTFAX4; - break; - case 'u': /* generate uncompressed output (g3 and g4) */ - group3options_out |= GROUP3OPT_UNCOMPRESSED; - group4options_out |= GROUP4OPT_UNCOMPRESSED; - break; - case '5': /* generate 1d-encoded output (g3 only) */ - group3options_out &= ~GROUP3OPT_2DENCODING; - break; - case '6': /* generate 2d-encoded output (g3 only) */ - group3options_out |= GROUP3OPT_2DENCODING; - break; - case 'c': /* generate "classic" g3 format */ - mode = FAXMODE_CLASSIC; - break; - case 'f': /* generate Class F format */ - mode = FAXMODE_CLASSF; - break; - case 'm': /* output's fillorder is msb-to-lsb */ - fillorder_out = FILLORDER_MSB2LSB; - break; - case 'l': /* output's fillorder is lsb-to-msb */ - fillorder_out = FILLORDER_LSB2MSB; - break; - case 'o': - out = TIFFOpen(optarg, "w"); - if (out == NULL) { - fprintf(stderr, - "%s: Can not create or open %s\n", - argv[0], optarg); - return EXIT_FAILURE; - } - break; - case 'a': /* generate EOL-aligned output (g3 only) */ - group3options_out |= GROUP3OPT_FILLBITS; - break; - case 'p': /* generate not EOL-aligned output (g3 only) */ - group3options_out &= ~GROUP3OPT_FILLBITS; - break; - case 'r': /* rows/strip */ - defrowsperstrip = atol(optarg); - break; - case 's': /* stretch image by dup'ng scanlines */ - stretch = 1; - break; - case 'w': /* undocumented -- for testing */ - photometric_out = PHOTOMETRIC_MINISWHITE; - break; - case 'b': /* undocumented -- for testing */ - photometric_out = PHOTOMETRIC_MINISBLACK; - break; - case 'z': /* undocumented -- for testing */ - compression_out = COMPRESSION_LZW; - break; - case 'v': /* -v for info */ - verbose++; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - npages = argc - optind; - if (npages < 1) - usage(); - - rowbuf = _TIFFmalloc(TIFFhowmany8(xsize)); - refbuf = _TIFFmalloc(TIFFhowmany8(xsize)); - if (rowbuf == NULL || refbuf == NULL) { - fprintf(stderr, "%s: Not enough memory\n", argv[0]); - return (EXIT_FAILURE); - } - - if (out == NULL) { - out = TIFFOpen("fax.tif", "w"); - if (out == NULL) { - fprintf(stderr, "%s: Can not create fax.tif\n", - argv[0]); - return (EXIT_FAILURE); - } - } - - faxTIFF = TIFFClientOpen("(FakeInput)", "w", - /* TIFFClientOpen() fails if we don't set existing value here */ - TIFFClientdata(out), - TIFFGetReadProc(out), TIFFGetWriteProc(out), - TIFFGetSeekProc(out), TIFFGetCloseProc(out), - TIFFGetSizeProc(out), TIFFGetMapFileProc(out), - TIFFGetUnmapFileProc(out)); - if (faxTIFF == NULL) { - fprintf(stderr, "%s: Can not create fake input file\n", - argv[0]); - return (EXIT_FAILURE); - } - TIFFSetMode(faxTIFF, O_RDONLY); - TIFFSetField(faxTIFF, TIFFTAG_IMAGEWIDTH, xsize); - TIFFSetField(faxTIFF, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(faxTIFF, TIFFTAG_BITSPERSAMPLE, 1); - TIFFSetField(faxTIFF, TIFFTAG_FILLORDER, fillorder_in); - TIFFSetField(faxTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(faxTIFF, TIFFTAG_PHOTOMETRIC, photometric_in); - TIFFSetField(faxTIFF, TIFFTAG_YRESOLUTION, resY); - TIFFSetField(faxTIFF, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH); - - /* NB: this must be done after directory info is setup */ - TIFFSetField(faxTIFF, TIFFTAG_COMPRESSION, compression_in); - if (compression_in == COMPRESSION_CCITTFAX3) - TIFFSetField(faxTIFF, TIFFTAG_GROUP3OPTIONS, group3options_in); - else if (compression_in == COMPRESSION_CCITTFAX4) - TIFFSetField(faxTIFF, TIFFTAG_GROUP4OPTIONS, group4options_in); - for (pn = 0; optind < argc; pn++, optind++) { - in = fopen(argv[optind], "rb"); - if (in == NULL) { - fprintf(stderr, - "%s: %s: Can not open\n", argv[0], argv[optind]); - continue; - } -#if defined(_WIN32) && defined(USE_WIN32_FILEIO) - TIFFSetClientdata(faxTIFF, (thandle_t)_get_osfhandle(fileno(in))); -#else - TIFFSetClientdata(faxTIFF, (thandle_t)fileno(in)); -#endif - TIFFSetFileName(faxTIFF, (const char*)argv[optind]); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, xsize); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression_out); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric_out); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1); - switch (compression_out) { - /* g3 */ - case COMPRESSION_CCITTFAX3: - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, - group3options_out); - TIFFSetField(out, TIFFTAG_FAXMODE, mode); - rowsperstrip = - (defrowsperstrip)?defrowsperstrip:(uint32)-1L; - break; - - /* g4 */ - case COMPRESSION_CCITTFAX4: - TIFFSetField(out, TIFFTAG_GROUP4OPTIONS, - group4options_out); - TIFFSetField(out, TIFFTAG_FAXMODE, mode); - rowsperstrip = - (defrowsperstrip)?defrowsperstrip:(uint32)-1L; - break; - - default: - rowsperstrip = (defrowsperstrip) ? - defrowsperstrip : TIFFDefaultStripSize(out, 0); - } - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder_out); - TIFFSetField(out, TIFFTAG_SOFTWARE, "fax2tiff"); - TIFFSetField(out, TIFFTAG_XRESOLUTION, 204.0); - if (!stretch) { - TIFFGetField(faxTIFF, TIFFTAG_YRESOLUTION, &resY); - TIFFSetField(out, TIFFTAG_YRESOLUTION, resY); - } else - TIFFSetField(out, TIFFTAG_YRESOLUTION, 196.); - TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH); - TIFFSetField(out, TIFFTAG_PAGENUMBER, pn, npages); - - if (!verbose) - whandler = TIFFSetWarningHandler(NULL); - rows = copyFaxFile(faxTIFF, out); - fclose(in); - if (!verbose) - (void) TIFFSetWarningHandler(whandler); - - TIFFSetField(out, TIFFTAG_IMAGELENGTH, rows); - - if (verbose) { - fprintf(stderr, "%s:\n", argv[optind]); - fprintf(stderr, "%d rows in input\n", rows); - fprintf(stderr, "%ld total bad rows\n", - (long) badfaxlines); - fprintf(stderr, "%d max consecutive bad rows\n", badfaxrun); - } - if (compression_out == COMPRESSION_CCITTFAX3 && - mode == FAXMODE_CLASSF) { - TIFFSetField(out, TIFFTAG_BADFAXLINES, badfaxlines); - TIFFSetField(out, TIFFTAG_CLEANFAXDATA, badfaxlines ? - CLEANFAXDATA_REGENERATED : CLEANFAXDATA_CLEAN); - TIFFSetField(out, TIFFTAG_CONSECUTIVEBADFAXLINES, badfaxrun); - } - TIFFWriteDirectory(out); - } - TIFFClose(out); - _TIFFfree(rowbuf); - _TIFFfree(refbuf); - return (EXIT_SUCCESS); -} - -int -copyFaxFile(TIFF* tifin, TIFF* tifout) -{ - uint32 row; - uint32 linesize = TIFFhowmany8(xsize); - uint16 badrun; - int ok; - - tifin->tif_rawdatasize = (tmsize_t)TIFFGetFileSize(tifin); - tifin->tif_rawdata = _TIFFmalloc(tifin->tif_rawdatasize); - if (tifin->tif_rawdata == NULL) { - TIFFError(tifin->tif_name, "Not enough memory"); - return (0); - } - if (!ReadOK(tifin, tifin->tif_rawdata, tifin->tif_rawdatasize)) { - TIFFError(tifin->tif_name, "Read error at scanline 0"); - return (0); - } - tifin->tif_rawcp = tifin->tif_rawdata; - tifin->tif_rawcc = tifin->tif_rawdatasize; - - (*tifin->tif_setupdecode)(tifin); - (*tifin->tif_predecode)(tifin, (tsample_t) 0); - tifin->tif_row = 0; - badfaxlines = 0; - badfaxrun = 0; - - _TIFFmemset(refbuf, 0, linesize); - row = 0; - badrun = 0; /* current run of bad lines */ - while (tifin->tif_rawcc > 0) { - ok = (*tifin->tif_decoderow)(tifin, (tdata_t) rowbuf, - linesize, 0); - if (!ok) { - badfaxlines++; - badrun++; - /* regenerate line from previous good line */ - _TIFFmemcpy(rowbuf, refbuf, linesize); - } else { - if (badrun > badfaxrun) - badfaxrun = badrun; - badrun = 0; - _TIFFmemcpy(refbuf, rowbuf, linesize); - } - tifin->tif_row++; - - if (TIFFWriteScanline(tifout, rowbuf, row, 0) < 0) { - fprintf(stderr, "%s: Write error at row %ld.\n", - tifout->tif_name, (long) row); - break; - } - row++; - if (stretch) { - if (TIFFWriteScanline(tifout, rowbuf, row, 0) < 0) { - fprintf(stderr, "%s: Write error at row %ld.\n", - tifout->tif_name, (long) row); - break; - } - row++; - } - } - if (badrun > badfaxrun) - badfaxrun = badrun; - _TIFFfree(tifin->tif_rawdata); - return (row); -} - -char* stuff[] = { -"usage: fax2tiff [options] input.raw...", -"where options are:", -" -3 input data is G3-encoded [default]", -" -4 input data is G4-encoded", -" -U input data is uncompressed (G3 or G4)", -" -1 input data is 1D-encoded (G3 only) [default]", -" -2 input data is 2D-encoded (G3 only)", -" -P input is not EOL-aligned (G3 only) [default]", -" -A input is EOL-aligned (G3 only)", -" -M input data has MSB2LSB bit order", -" -L input data has LSB2MSB bit order [default]", -" -B input data has min 0 means black", -" -W input data has min 0 means white [default]", -" -R # input data has # resolution (lines/inch) [default is 196]", -" -X # input data has # width [default is 1728]", -"", -" -o out.tif write output to out.tif", -" -7 generate G3-encoded output [default]", -" -8 generate G4-encoded output", -" -u generate uncompressed output (G3 or G4)", -" -5 generate 1D-encoded output (G3 only)", -" -6 generate 2D-encoded output (G3 only) [default]", -" -p generate not EOL-aligned output (G3 only)", -" -a generate EOL-aligned output (G3 only) [default]", -" -c generate \"classic\" TIFF format", -" -f generate TIFF Class F (TIFF/F) format [default]", -" -m output fill order is MSB2LSB", -" -l output fill order is LSB2MSB [default]", -" -r # make each strip have no more than # rows", -" -s stretch image by duplicating scanlines", -" -v print information about conversion work", -" -z generate LZW compressed output", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(EXIT_FAILURE); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/gif2tiff.c b/tiff/tools/gif2tiff.c deleted file mode 100755 index 91439f7..0000000 --- a/tiff/tools/gif2tiff.c +++ /dev/null @@ -1,548 +0,0 @@ -/* $Id: gif2tiff.c,v 1.16 2014-11-20 16:47:21 erouault Exp $ */ - -/* - * Copyright (c) 1990-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * convert a GIF file into a TIFF file. - * based on Paul Haeberli's fromgif program which in turn is - * based on a GIF file reader by Marcel J.E. Mol March 23 1989 - * - * if input is 320 by 200 pixel aspect is probably 1.2 - * if input is 640 350 pixel aspect is probably 1.37 - * - */ -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#define GIFGAMMA (1.5) /* smaller makes output img brighter */ -#define IMAX 0xffff /* max intensity value */ -#define EXTRAFUDGE 128 /* some people write BAD .gif files */ - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -unsigned short gamtab[256]; - -void -makegamtab(float gam) -{ - int i; - - for(i=0; i<256; i++) - gamtab[i] = (unsigned short) (IMAX*pow(i/255.0,gam)+0.5); -} - -char* stuff[] = { -"usage: gif2tiff [options] input.gif output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -#define COLSIZE 256 - -unsigned char *stackp; -unsigned int prefix[4096]; -unsigned char suffix[4096]; -unsigned char stack[4096]; -int datasize,codesize,codemask; /* Decoder working variables */ -int clear,eoi; /* Special code values */ -int avail, oldcode; - -FILE *infile; -int global; /* Is there a global color map? */ -int globalbits; /* Number of bits of global colors */ -unsigned char globalmap[COLSIZE][3];/* RGB values for global color map */ -unsigned char *raster; /* Decoded image data */ -unsigned long width, height; -unsigned short red[COLSIZE]; -unsigned short green[COLSIZE]; -unsigned short blue[COLSIZE]; -char *filename, *imagename; - -static uint16 compression = COMPRESSION_PACKBITS; -static uint16 predictor = 0; -static uint32 rowsperstrip = (uint32) -1; -static int processCompressOptions(char*); - -int convert(void); -int checksignature(void); -void readscreen(void); -int readgifimage(char*); -void readextension(void); -int readraster(void); -int process(int, unsigned char**); -void initcolors(unsigned char [COLSIZE][3], int); -void rasterize(int, char*); - -int -main(int argc, char* argv[]) -{ - extern int optind; - extern char *optarg; - int c, status; - - while ((c = getopt(argc, argv, "c:r:")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 2) - usage(); - - makegamtab(GIFGAMMA); - filename = argv[optind]; - imagename = argv[optind+1]; - if ((infile = fopen(imagename, "rb")) != NULL) { - int c; - fclose(infile); - printf("overwrite %s? ", imagename); fflush(stdout); - c = getc(stdin); - if (c != 'y' && c != 'Y') - return (1); - } - if ((infile = fopen(filename, "rb")) == NULL) { - perror(filename); - return (1); - } - status = convert(); - fclose(infile); - return (status); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -int -convert(void) -{ - int ch; - char* mode = "w"; - - if (!checksignature()) - return (-1); - readscreen(); - while ((ch = getc(infile)) != ';' && ch != EOF) { - switch (ch) { - case '\0': break; /* this kludge for non-standard files */ - case ',': if (!readgifimage(mode)) - return (-1); - mode = "a"; /* subsequent images append */ - break; - case '!': readextension(); - break; - default: fprintf(stderr, "illegal GIF block type\n"); - return (-1); - } - } - return (0); -} - -int -checksignature(void) -{ - char buf[6]; - - fread(buf,1,6,infile); - if (strncmp(buf,"GIF",3)) { - fprintf(stderr, "file is not a GIF file\n"); - return 0; - } - if (strncmp(&buf[3],"87a",3)) { - fprintf(stderr, "unknown GIF version number\n"); - return 0; - } - return 1; -} - -/* - * readscreen - - * Get information which is global to all the images stored - * in the file - */ -void -readscreen(void) -{ - unsigned char buf[7]; - - fread(buf,1,7,infile); - global = buf[4] & 0x80; - if (global) { - globalbits = (buf[4] & 0x07) + 1; - fread(globalmap,3,((size_t)1)< 2000000000 / height) { - fprintf(stderr, "Invalid value of width or height\n"); - return(0); - } - if (local == 0 && global == 0) { - fprintf(stderr, "no colormap present for image\n"); - return (0); - } - - if ((raster = (unsigned char*) _TIFFmalloc(width*height+EXTRAFUDGE)) == NULL) { - fprintf(stderr, "not enough memory for image\n"); - return (0); - } - if (local) { - localbits = (buf[8] & 0x7) + 1; - - fprintf(stderr, " local colors: %d\n", 1< 12) - return 0; - clear = 1 << datasize; - eoi = clear + 1; - avail = clear + 2; - oldcode = -1; - codesize = datasize + 1; - codemask = (1 << codesize) - 1; - for (code = 0; code < clear; code++) { - prefix[code] = 0; - suffix[code] = code; - } - stackp = stack; - for (count = getc(infile); count > 0 && count <= 255; count = getc(infile)) { - fread(buf,1,count,infile); - for (ch=buf; count-- > 0; ch++) { - datum += (unsigned long) *ch << bits; - bits += 8; - while (bits >= codesize) { - code = datum & codemask; - datum >>= codesize; - bits -= codesize; - if (code == eoi) { /* This kludge put in */ - goto exitloop; /* because some GIF files*/ - } /* aren't standard */ - if (!process(code, &fill)) { - status = 0; - goto exitloop; - } - } - } - if (fill >= raster + width*height) { - fprintf(stderr, "raster full before eoi code\n"); - break; - } - } -exitloop: - if (fill != raster + width*height) { - fprintf(stderr, "warning: wrong rastersize: %ld bytes\n", - (long) (fill-raster)); - fprintf(stderr, " instead of %ld bytes\n", - (long) width*height); - } - return status; -} - -/* - * process - - * Process a compression code. "clear" resets the code table. - * Otherwise make a new code table entry, and output the bytes - * associated with the code. - */ -int -process(register int code, unsigned char** fill) -{ - int incode; - static unsigned char firstchar; - - if (code == clear) { - codesize = datasize + 1; - codemask = (1 << codesize) - 1; - avail = clear + 2; - oldcode = -1; - return 1; - } - - if (oldcode == -1) { - if (code >= clear) { - fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear); - return 0; - } - if (*fill >= raster + width*height) { - fprintf(stderr, "raster full before eoi code\n"); - return 0; - } - *(*fill)++ = suffix[code]; - firstchar = oldcode = code; - return 1; - } - if (code > avail) { - fprintf(stderr, "code %d too large for %d\n", code, avail); - return 0; - } - - incode = code; - if (code == avail) { /* the first code is always < avail */ - *stackp++ = firstchar; - code = oldcode; - } - while (code > clear) { - *stackp++ = suffix[code]; - code = prefix[code]; - } - - *stackp++ = firstchar = suffix[code]; - prefix[avail] = oldcode; - suffix[avail] = firstchar; - avail++; - - if (((avail & codemask) == 0) && (avail < 4096)) { - codesize++; - codemask += avail; - } - oldcode = incode; - do { - if (*fill >= raster + width*height) { - fprintf(stderr, "raster full before eoi code\n"); - return 0; - } - *(*fill)++ = *--stackp; - } while (stackp > stack); - return 1; -} - -/* - * initcolors - - * Convert a color map (local or global) to arrays with R, G and B - * values. - * - */ -void -initcolors(unsigned char colormap[COLSIZE][3], int ncolors) -{ - register int i; - - for (i = 0; i < ncolors; i++) { - red[i] = gamtab[colormap[i][0]]; - green[i] = gamtab[colormap[i][1]]; - blue[i] = gamtab[colormap[i][2]]; - } -} - -void -rasterize(int interleaved, char* mode) -{ - register unsigned long row; - unsigned char *newras; - unsigned char *ras; - TIFF *tif; - tstrip_t strip; - tsize_t stripsize; - - if ((newras = (unsigned char*) _TIFFmalloc(width*height+EXTRAFUDGE)) == NULL) { - fprintf(stderr, "not enough memory for image\n"); - return; - } -#define DRAWSEGMENT(offset, step) { \ - for (row = offset; row < height; row += step) { \ - _TIFFmemcpy(newras + row*width, ras, width);\ - ras += width; \ - } \ - } - ras = raster; - if (interleaved) { - DRAWSEGMENT(0, 8); - DRAWSEGMENT(4, 8); - DRAWSEGMENT(2, 4); - DRAWSEGMENT(1, 2); - } else - DRAWSEGMENT(0, 1); -#undef DRAWSEGMENT - - tif = TIFFOpen(imagename, mode); - if (!tif) { - TIFFError(imagename,"Can not open output image"); - exit(-1); - } - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (uint32) width); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (uint32) height); - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_PALETTE); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, - rowsperstrip = TIFFDefaultStripSize(tif, rowsperstrip)); - TIFFSetField(tif, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(tif, TIFFTAG_PREDICTOR, predictor); - break; - } - TIFFSetField(tif, TIFFTAG_COLORMAP, red, green, blue); - TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - strip = 0; - stripsize = TIFFStripSize(tif); - for (row=0; row height-row) { - rowsperstrip = height-row; - stripsize = TIFFVStripSize(tif, rowsperstrip); - } - if (TIFFWriteEncodedStrip(tif, strip, newras+row*width, stripsize) < 0) - break; - strip++; - } - TIFFClose(tif); - - _TIFFfree(newras); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/pal2rgb.c b/tiff/tools/pal2rgb.c deleted file mode 100755 index c724717..0000000 --- a/tiff/tools/pal2rgb.c +++ /dev/null @@ -1,435 +0,0 @@ -/* $Id: pal2rgb.c,v 1.14 2014-12-21 20:04:31 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -static void usage(void); -static void cpTags(TIFF* in, TIFF* out); - -static int -checkcmap(int n, uint16* r, uint16* g, uint16* b) -{ - while (n-- > 0) - if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) - return (16); - fprintf(stderr, "Warning, assuming 8-bit colormap.\n"); - return (8); -} - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) - -static uint16 compression = (uint16) -1; -static uint16 predictor = 0; -static int quality = 75; /* JPEG quality */ -static int jpegcolormode = JPEGCOLORMODE_RGB; -static int processCompressOptions(char*); - -int -main(int argc, char* argv[]) -{ - uint16 bitspersample, shortv; - uint32 imagewidth, imagelength; - uint16 config = PLANARCONFIG_CONTIG; - uint32 rowsperstrip = (uint32) -1; - uint16 photometric = PHOTOMETRIC_RGB; - uint16 *rmap, *gmap, *bmap; - uint32 row; - int cmap = -1; - TIFF *in, *out; - int c; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "C:c:p:r:")) != -1) - switch (c) { - case 'C': /* force colormap interpretation */ - cmap = atoi(optarg); - break; - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'p': /* planar configuration */ - if (streq(optarg, "separate")) - config = PLANARCONFIG_SEPARATE; - else if (streq(optarg, "contig")) - config = PLANARCONFIG_CONTIG; - else - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 2) - usage(); - in = TIFFOpen(argv[optind], "r"); - if (in == NULL) - return (-1); - if (!TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &shortv) || - shortv != PHOTOMETRIC_PALETTE) { - fprintf(stderr, "%s: Expecting a palette image.\n", - argv[optind]); - return (-1); - } - if (!TIFFGetField(in, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { - fprintf(stderr, - "%s: No colormap (not a valid palette image).\n", - argv[optind]); - return (-1); - } - bitspersample = 0; - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample); - if (bitspersample != 8) { - fprintf(stderr, "%s: Sorry, can only handle 8-bit images.\n", - argv[optind]); - return (-1); - } - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return (-2); - cpTags(in, out); - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &imagewidth); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength); - if (compression != (uint16)-1) - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - else - TIFFGetField(in, TIFFTAG_COMPRESSION, &compression); - switch (compression) { - case COMPRESSION_JPEG: - if (jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - else - photometric = PHOTOMETRIC_RGB; - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip)); - (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv); - if (cmap == -1) - cmap = checkcmap(1<= 0; i--) { -#define CVT(x) (((x) * 255) / ((1L<<16)-1)) - rmap[i] = CVT(rmap[i]); - gmap[i] = CVT(gmap[i]); - bmap[i] = CVT(bmap[i]); - } - } - { unsigned char *ibuf, *obuf; - register unsigned char* pp; - register uint32 x; - ibuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(in)); - obuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(out)); - switch (config) { - case PLANARCONFIG_CONTIG: - for (row = 0; row < imagelength; row++) { - if (!TIFFReadScanline(in, ibuf, row, 0)) - goto done; - pp = obuf; - for (x = 0; x < imagewidth; x++) { - *pp++ = (unsigned char) rmap[ibuf[x]]; - *pp++ = (unsigned char) gmap[ibuf[x]]; - *pp++ = (unsigned char) bmap[ibuf[x]]; - } - if (!TIFFWriteScanline(out, obuf, row, 0)) - goto done; - } - break; - case PLANARCONFIG_SEPARATE: - for (row = 0; row < imagelength; row++) { - if (!TIFFReadScanline(in, ibuf, row, 0)) - goto done; - for (pp = obuf, x = 0; x < imagewidth; x++) - *pp++ = (unsigned char) rmap[ibuf[x]]; - if (!TIFFWriteScanline(out, obuf, row, 0)) - goto done; - for (pp = obuf, x = 0; x < imagewidth; x++) - *pp++ = (unsigned char) gmap[ibuf[x]]; - if (!TIFFWriteScanline(out, obuf, row, 0)) - goto done; - for (pp = obuf, x = 0; x < imagewidth; x++) - *pp++ = (unsigned char) bmap[ibuf[x]]; - if (!TIFFWriteScanline(out, obuf, row, 0)) - goto done; - } - break; - } - _TIFFfree(ibuf); - _TIFFfree(obuf); - } -done: - (void) TIFFClose(in); - (void) TIFFClose(out); - return (0); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) -#define CopyField4(tag, v1, v2, v3, v4) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4) - -static void -cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type) -{ - switch (type) { - case TIFF_SHORT: - if (count == 1) { - uint16 shortv; - CopyField(tag, shortv); - } else if (count == 2) { - uint16 shortv1, shortv2; - CopyField2(tag, shortv1, shortv2); - } else if (count == 4) { - uint16 *tr, *tg, *tb, *ta; - CopyField4(tag, tr, tg, tb, ta); - } else if (count == (uint16) -1) { - uint16 shortv1; - uint16* shortav; - CopyField2(tag, shortv1, shortav); - } - break; - case TIFF_LONG: - { uint32 longv; - CopyField(tag, longv); - } - break; - case TIFF_RATIONAL: - if (count == 1) { - float floatv; - CopyField(tag, floatv); - } else if (count == (uint16) -1) { - float* floatav; - CopyField(tag, floatav); - } - break; - case TIFF_ASCII: - { char* stringv; - CopyField(tag, stringv); - } - break; - case TIFF_DOUBLE: - if (count == 1) { - double doublev; - CopyField(tag, doublev); - } else if (count == (uint16) -1) { - double* doubleav; - CopyField(tag, doubleav); - } - break; - default: - TIFFError(TIFFFileName(in), - "Data type %d is not supported, tag %d skipped.", - tag, type); - } -} - -#undef CopyField4 -#undef CopyField3 -#undef CopyField2 -#undef CopyField - -static struct cpTag { - uint16 tag; - uint16 count; - TIFFDataType type; -} tags[] = { - { TIFFTAG_IMAGEWIDTH, 1, TIFF_LONG }, - { TIFFTAG_IMAGELENGTH, 1, TIFF_LONG }, - { TIFFTAG_BITSPERSAMPLE, 1, TIFF_SHORT }, - { TIFFTAG_COMPRESSION, 1, TIFF_SHORT }, - { TIFFTAG_FILLORDER, 1, TIFF_SHORT }, - { TIFFTAG_ROWSPERSTRIP, 1, TIFF_LONG }, - { TIFFTAG_GROUP3OPTIONS, 1, TIFF_LONG }, - { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG }, - { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT }, - { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII }, - { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII }, - { TIFFTAG_MAKE, 1, TIFF_ASCII }, - { TIFFTAG_MODEL, 1, TIFF_ASCII }, - { TIFFTAG_ORIENTATION, 1, TIFF_SHORT }, - { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_PAGENAME, 1, TIFF_ASCII }, - { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG }, - { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT }, - { TIFFTAG_PAGENUMBER, 2, TIFF_SHORT }, - { TIFFTAG_SOFTWARE, 1, TIFF_ASCII }, - { TIFFTAG_DATETIME, 1, TIFF_ASCII }, - { TIFFTAG_ARTIST, 1, TIFF_ASCII }, - { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII }, - { TIFFTAG_WHITEPOINT, 2, TIFF_RATIONAL }, - { TIFFTAG_PRIMARYCHROMATICITIES, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT }, - { TIFFTAG_BADFAXLINES, 1, TIFF_LONG }, - { TIFFTAG_CLEANFAXDATA, 1, TIFF_SHORT }, - { TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG }, - { TIFFTAG_INKSET, 1, TIFF_SHORT }, - /*{ TIFFTAG_INKNAMES, 1, TIFF_ASCII },*/ /* Needs much more complicated logic. See tiffcp */ - { TIFFTAG_DOTRANGE, 2, TIFF_SHORT }, - { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII }, - { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT }, - { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT }, - { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT }, - { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL }, -}; -#define NTAGS (sizeof (tags) / sizeof (tags[0])) - -static void -cpTags(TIFF* in, TIFF* out) -{ - struct cpTag *p; - for (p = tags; p < &tags[NTAGS]; p++) - cpTag(in, out, p->tag, p->count, p->type); -} -#undef NTAGS - -char* stuff[] = { -"usage: pal2rgb [options] input.tif output.tif", -"where options are:", -" -p contig pack samples contiguously (e.g. RGBRGB...)", -" -p separate store samples separately (e.g. RRR...GGG...BBB...)", -" -r # make each strip have no more than # rows", -" -C 8 assume 8-bit colormap values (instead of 16-bit)", -" -C 16 assume 16-bit colormap values", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/ppm2tiff.c b/tiff/tools/ppm2tiff.c deleted file mode 100755 index 70f74be..0000000 --- a/tiff/tools/ppm2tiff.c +++ /dev/null @@ -1,395 +0,0 @@ -/* $Id: ppm2tiff.c,v 1.18 2012-12-10 18:19:11 tgl Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -static uint16 compression = COMPRESSION_PACKBITS; -static uint16 predictor = 0; -static int quality = 75; /* JPEG quality */ -static int jpegcolormode = JPEGCOLORMODE_RGB; -static uint32 g3opts; - -static void usage(void); -static int processCompressOptions(char*); - -static void -BadPPM(char* file) -{ - fprintf(stderr, "%s: Not a PPM file.\n", file); - exit(-2); -} - -static tmsize_t -multiply_ms(tmsize_t m1, tmsize_t m2) -{ - tmsize_t bytes = m1 * m2; - - if (m1 && bytes / m1 != m2) - bytes = 0; - - return bytes; -} - -int -main(int argc, char* argv[]) -{ - uint16 photometric = 0; - uint32 rowsperstrip = (uint32) -1; - double resolution = -1; - unsigned char *buf = NULL; - tmsize_t linebytes = 0; - uint16 spp = 1; - uint16 bpp = 8; - TIFF *out; - FILE *in; - unsigned int w, h, prec, row; - char *infile; - int c; - extern int optind; - extern char* optarg; - tmsize_t scanline_size; - - if (argc < 2) { - fprintf(stderr, "%s: Too few arguments\n", argv[0]); - usage(); - } - while ((c = getopt(argc, argv, "c:r:R:")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case 'R': /* resolution */ - resolution = atof(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - - if (optind + 2 < argc) { - fprintf(stderr, "%s: Too many arguments\n", argv[0]); - usage(); - } - - /* - * If only one file is specified, read input from - * stdin; otherwise usage is: ppm2tiff input output. - */ - if (argc - optind > 1) { - infile = argv[optind++]; - in = fopen(infile, "rb"); - if (in == NULL) { - fprintf(stderr, "%s: Can not open.\n", infile); - return (-1); - } - } else { - infile = ""; - in = stdin; -#if defined(HAVE_SETMODE) && defined(O_BINARY) - setmode(fileno(stdin), O_BINARY); -#endif - } - - if (fgetc(in) != 'P') - BadPPM(infile); - switch (fgetc(in)) { - case '4': /* it's a PBM file */ - bpp = 1; - spp = 1; - photometric = PHOTOMETRIC_MINISWHITE; - break; - case '5': /* it's a PGM file */ - bpp = 8; - spp = 1; - photometric = PHOTOMETRIC_MINISBLACK; - break; - case '6': /* it's a PPM file */ - bpp = 8; - spp = 3; - photometric = PHOTOMETRIC_RGB; - if (compression == COMPRESSION_JPEG && - jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - break; - default: - BadPPM(infile); - } - - /* Parse header */ - while(1) { - if (feof(in)) - BadPPM(infile); - c = fgetc(in); - /* Skip whitespaces (blanks, TABs, CRs, LFs) */ - if (strchr(" \t\r\n", c)) - continue; - - /* Check for comment line */ - if (c == '#') { - do { - c = fgetc(in); - } while(!(strchr("\r\n", c) || feof(in))); - continue; - } - - ungetc(c, in); - break; - } - switch (bpp) { - case 1: - if (fscanf(in, " %u %u", &w, &h) != 2) - BadPPM(infile); - if (fgetc(in) != '\n') - BadPPM(infile); - break; - case 8: - if (fscanf(in, " %u %u %u", &w, &h, &prec) != 3) - BadPPM(infile); - if (fgetc(in) != '\n' || prec != 255) - BadPPM(infile); - break; - } - out = TIFFOpen(argv[optind], "w"); - if (out == NULL) - return (-4); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) w); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) h); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bpp); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_JPEG: - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - case COMPRESSION_CCITTFAX3: - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts); - break; - } - switch (bpp) { - case 1: - /* if round-up overflows, result will be zero, OK */ - linebytes = (multiply_ms(spp, w) + (8 - 1)) / 8; - if (rowsperstrip == (uint32) -1) { - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, h); - } else { - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - } - break; - case 8: - linebytes = multiply_ms(spp, w); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - break; - } - if (linebytes == 0) { - fprintf(stderr, "%s: scanline size overflow\n", infile); - (void) TIFFClose(out); - exit(-2); - } - scanline_size = TIFFScanlineSize(out); - if (scanline_size == 0) { - /* overflow - TIFFScanlineSize already printed a message */ - (void) TIFFClose(out); - exit(-2); - } - if (scanline_size < linebytes) - buf = (unsigned char *)_TIFFmalloc(linebytes); - else - buf = (unsigned char *)_TIFFmalloc(scanline_size); - if (buf == NULL) { - fprintf(stderr, "%s: Not enough memory\n", infile); - (void) TIFFClose(out); - exit(-2); - } - if (resolution > 0) { - TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution); - TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution); - TIFFSetField(out, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH); - } - for (row = 0; row < h; row++) { - if (fread(buf, linebytes, 1, in) != 1) { - fprintf(stderr, "%s: scanline %lu: Read error.\n", - infile, (unsigned long) row); - break; - } - if (TIFFWriteScanline(out, buf, row, 0) < 0) - break; - } - (void) TIFFClose(out); - if (buf) - _TIFFfree(buf); - return (0); -} - -static void -processG3Options(char* cp) -{ - g3opts = 0; - if( (cp = strchr(cp, ':')) ) { - do { - cp++; - if (strneq(cp, "1d", 2)) - g3opts &= ~GROUP3OPT_2DENCODING; - else if (strneq(cp, "2d", 2)) - g3opts |= GROUP3OPT_2DENCODING; - else if (strneq(cp, "fill", 4)) - g3opts |= GROUP3OPT_FILLBITS; - else - usage(); - } while( (cp = strchr(cp, ':')) ); - } -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while (cp) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "g3", 2)) { - processG3Options(opt); - compression = COMPRESSION_CCITTFAX3; - } else if (streq(opt, "g4")) { - compression = COMPRESSION_CCITTFAX4; - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -char* stuff[] = { -"usage: ppm2tiff [options] input.ppm output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -" -R # set x&y resolution (dpi)", -"", -" -c jpeg[:opts] compress output with JPEG encoding", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding (the default)", -" -c g3[:opts] compress output with CCITT Group 3 encoding", -" -c g4 compress output with CCITT Group 4 encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/ras2tiff.c b/tiff/tools/ras2tiff.c deleted file mode 100755 index ec8a071..0000000 --- a/tiff/tools/ras2tiff.c +++ /dev/null @@ -1,316 +0,0 @@ -/* $Id: ras2tiff.c,v 1.18 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "rasterfile.h" -#include "tiffio.h" - -#ifndef howmany -#define howmany(x, y) (((x)+((y)-1))/(y)) -#endif -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -static uint16 compression = (uint16) -1; -static int jpegcolormode = JPEGCOLORMODE_RGB; -static int quality = 75; /* JPEG quality */ -static uint16 predictor = 0; - -static void usage(void); -static int processCompressOptions(char*); - -int -main(int argc, char* argv[]) -{ - unsigned char* buf; - long row; - tsize_t linebytes, scanline; - TIFF *out; - FILE *in; - struct rasterfile h; - uint16 photometric; - uint16 config = PLANARCONFIG_CONTIG; - uint32 rowsperstrip = (uint32) -1; - int c; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "c:r:h")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case 'h': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 2) - usage(); - in = fopen(argv[optind], "rb"); - if (in == NULL) { - fprintf(stderr, "%s: Can not open.\n", argv[optind]); - return (-1); - } - if (fread(&h, sizeof (h), 1, in) != 1) { - fprintf(stderr, "%s: Can not read header.\n", argv[optind]); - fclose(in); - return (-2); - } - if (strcmp(h.ras_magic, RAS_MAGIC) == 0) { -#ifndef WORDS_BIGENDIAN - TIFFSwabLong((uint32 *)&h.ras_width); - TIFFSwabLong((uint32 *)&h.ras_height); - TIFFSwabLong((uint32 *)&h.ras_depth); - TIFFSwabLong((uint32 *)&h.ras_length); - TIFFSwabLong((uint32 *)&h.ras_type); - TIFFSwabLong((uint32 *)&h.ras_maptype); - TIFFSwabLong((uint32 *)&h.ras_maplength); -#endif - } else if (strcmp(h.ras_magic, RAS_MAGIC_INV) == 0) { -#ifdef WORDS_BIGENDIAN - TIFFSwabLong((uint32 *)&h.ras_width); - TIFFSwabLong((uint32 *)&h.ras_height); - TIFFSwabLong((uint32 *)&h.ras_depth); - TIFFSwabLong((uint32 *)&h.ras_length); - TIFFSwabLong((uint32 *)&h.ras_type); - TIFFSwabLong((uint32 *)&h.ras_maptype); - TIFFSwabLong((uint32 *)&h.ras_maplength); -#endif - } else { - fprintf(stderr, "%s: Not a rasterfile.\n", argv[optind]); - fclose(in); - return (-3); - } - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - { - fclose(in); - return (-4); - } - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) h.ras_width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) h.ras_height); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, h.ras_depth > 8 ? 3 : 1); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, h.ras_depth > 1 ? 8 : 1); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - if (h.ras_maptype != RMT_NONE) { - uint16* red; - register uint16* map; - register int i, j; - int mapsize; - - buf = (unsigned char *)_TIFFmalloc(h.ras_maplength); - if (buf == NULL) { - fprintf(stderr, "No space to read in colormap.\n"); - return (-5); - } - if (fread(buf, h.ras_maplength, 1, in) != 1) { - fprintf(stderr, "%s: Read error on colormap.\n", - argv[optind]); - return (-6); - } - mapsize = 1< mapsize*3) { - fprintf(stderr, - "%s: Huh, %ld colormap entries, should be %d?\n", - argv[optind], h.ras_maplength, mapsize*3); - return (-7); - } - red = (uint16*)_TIFFmalloc(mapsize * 3 * sizeof (uint16)); - if (red == NULL) { - fprintf(stderr, "No space for colormap.\n"); - return (-8); - } - map = red; - for (j = 0; j < 3; j++) { -#define SCALE(x) (((x)*((1L<<16)-1))/255) - for (i = h.ras_maplength/3; i-- > 0;) - *map++ = SCALE(*buf++); - if ((i = h.ras_maplength/3) < mapsize) { - i = mapsize - i; - _TIFFmemset(map, 0, i*sizeof (uint16)); - map += i; - } - } - TIFFSetField(out, TIFFTAG_COLORMAP, - red, red + mapsize, red + 2*mapsize); - photometric = PHOTOMETRIC_PALETTE; - if (compression == (uint16) -1) - compression = COMPRESSION_PACKBITS; - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - } else { - /* XXX this is bogus... */ - photometric = h.ras_depth == 24 ? - PHOTOMETRIC_RGB : PHOTOMETRIC_MINISBLACK; - if (compression == (uint16) -1) - compression = COMPRESSION_LZW; - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - } - switch (compression) { - case COMPRESSION_JPEG: - if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric); - linebytes = ((h.ras_depth*h.ras_width+15) >> 3) &~ 1; - scanline = TIFFScanlineSize(out); - if (scanline > linebytes) { - buf = (unsigned char *)_TIFFmalloc(scanline); - _TIFFmemset(buf+linebytes, 0, scanline-linebytes); - } else - buf = (unsigned char *)_TIFFmalloc(linebytes); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - for (row = 0; row < h.ras_height; row++) { - if (fread(buf, linebytes, 1, in) != 1) { - fprintf(stderr, "%s: scanline %ld: Read error.\n", - argv[optind], row); - break; - } - if (h.ras_type == RT_STANDARD && h.ras_depth == 24) { - tsize_t cc = h.ras_width; - unsigned char* cp = buf; -#define SWAP(a,b) { unsigned char t = (a); (a) = (b); (b) = t; } - do { - SWAP(cp[0], cp[2]); - cp += 3; - } while (--cc); - } - if (TIFFWriteScanline(out, buf, row, 0) < 0) - break; - } - (void) TIFFClose(out); - fclose(in); - return (0); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -char* stuff[] = { -"usage: ras2tiff [options] input.ras output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c jpeg[:opts] compress output with JPEG encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -" -h this help message", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/rasterfile.h b/tiff/tools/rasterfile.h deleted file mode 100755 index 7fb33db..0000000 --- a/tiff/tools/rasterfile.h +++ /dev/null @@ -1,42 +0,0 @@ -/* $Header: /cvs/maptools/cvsroot/libtiff/tools/rasterfile.h,v 1.3 2003-11-12 19:14:33 dron Exp $ */ - -/* - * Description of header for files containing raster images - */ -struct rasterfile { - char ras_magic[4]; /* magic number */ - long ras_width; /* width (pixels) of image */ - long ras_height; /* height (pixels) of image */ - long ras_depth; /* depth (1, 8, or 24 bits) of pixel */ - long ras_length; /* length (bytes) of image */ - long ras_type; /* type of file; see RT_* below */ - long ras_maptype; /* type of colormap; see RMT_* below */ - long ras_maplength; /* length (bytes) of following map */ - /* color map follows for ras_maplength bytes, followed by image */ -}; -#define RAS_MAGIC "\x59\xa6\x6a\x95" -#define RAS_MAGIC_INV "\x95\x6a\xa6\x59" - - /* Sun supported ras_type's */ -#define RT_OLD 0 /* Raw pixrect image in 68000 byte order */ -#define RT_STANDARD 1 /* Raw pixrect image in 68000 byte order */ -#define RT_BYTE_ENCODED 2 /* Run-length compression of bytes */ -#define RT_EXPERIMENTAL 0xffff /* Reserved for testing */ - - /* Sun registered ras_maptype's */ -#define RMT_RAW 2 - /* Sun supported ras_maptype's */ -#define RMT_NONE 0 /* ras_maplength is expected to be 0 */ -#define RMT_EQUAL_RGB 1 /* red[ras_maplength/3],green[],blue[] */ - -/* - * NOTES: - * Each line of the image is rounded out to a multiple of 16 bits. - * This corresponds to the rounding convention used by the memory pixrect - * package (/usr/include/pixrect/memvar.h) of the SunWindows system. - * The ras_encoding field (always set to 0 by Sun's supported software) - * was renamed to ras_length in release 2.0. As a result, rasterfiles - * of type 0 generated by the old software claim to have 0 length; for - * compatibility, code reading rasterfiles must be prepared to compute the - * true length from the width, height, and depth fields. - */ diff --git a/tiff/tools/raw2tiff.c b/tiff/tools/raw2tiff.c deleted file mode 100755 index 9ab980e..0000000 --- a/tiff/tools/raw2tiff.c +++ /dev/null @@ -1,651 +0,0 @@ -/* $Id: raw2tiff.c,v 1.25 2010-03-10 18:56:49 bfriesen Exp $ - * - * Project: libtiff tools - * Purpose: Convert raw byte sequences in TIFF images - * Author: Andrey Kiselev, dron@ak4719.spb.edu - * - ****************************************************************************** - * Copyright (c) 2002, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#if HAVE_FCNTL_H -# include -#endif - -#if HAVE_SYS_TYPES_H -# include -#endif - -#if HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#ifndef O_BINARY -# define O_BINARY 0 -#endif - -typedef enum { - PIXEL, - BAND -} InterleavingType; - -static uint16 compression = (uint16) -1; -static int jpegcolormode = JPEGCOLORMODE_RGB; -static int quality = 75; /* JPEG quality */ -static uint16 predictor = 0; - -static void swapBytesInScanline(void *, uint32, TIFFDataType); -static int guessSize(int, TIFFDataType, off_t, uint32, int, - uint32 *, uint32 *); -static double correlation(void *, void *, uint32, TIFFDataType); -static void usage(void); -static int processCompressOptions(char*); - -int -main(int argc, char* argv[]) -{ - uint32 width = 0, length = 0, linebytes, bufsize; - uint32 nbands = 1; /* number of bands in input image*/ - off_t hdr_size = 0; /* size of the header to skip */ - TIFFDataType dtype = TIFF_BYTE; - int16 depth = 1; /* bytes per pixel in input image */ - int swab = 0; /* byte swapping flag */ - InterleavingType interleaving = 0; /* interleaving type flag */ - uint32 rowsperstrip = (uint32) -1; - uint16 photometric = PHOTOMETRIC_MINISBLACK; - uint16 config = PLANARCONFIG_CONTIG; - uint16 fillorder = FILLORDER_LSB2MSB; - int fd; - char *outfilename = NULL; - TIFF *out; - - uint32 row, col, band; - int c; - unsigned char *buf = NULL, *buf1 = NULL; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "c:r:H:w:l:b:d:LMp:si:o:h")) != -1) { - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case 'H': /* size of input image file header */ - hdr_size = atoi(optarg); - break; - case 'w': /* input image width */ - width = atoi(optarg); - break; - case 'l': /* input image length */ - length = atoi(optarg); - break; - case 'b': /* number of bands in input image */ - nbands = atoi(optarg); - break; - case 'd': /* type of samples in input image */ - if (strncmp(optarg, "byte", 4) == 0) - dtype = TIFF_BYTE; - else if (strncmp(optarg, "short", 5) == 0) - dtype = TIFF_SHORT; - else if (strncmp(optarg, "long", 4) == 0) - dtype = TIFF_LONG; - else if (strncmp(optarg, "sbyte", 5) == 0) - dtype = TIFF_SBYTE; - else if (strncmp(optarg, "sshort", 6) == 0) - dtype = TIFF_SSHORT; - else if (strncmp(optarg, "slong", 5) == 0) - dtype = TIFF_SLONG; - else if (strncmp(optarg, "float", 5) == 0) - dtype = TIFF_FLOAT; - else if (strncmp(optarg, "double", 6) == 0) - dtype = TIFF_DOUBLE; - else - dtype = TIFF_BYTE; - depth = TIFFDataWidth(dtype); - break; - case 'L': /* input has lsb-to-msb fillorder */ - fillorder = FILLORDER_LSB2MSB; - break; - case 'M': /* input has msb-to-lsb fillorder */ - fillorder = FILLORDER_MSB2LSB; - break; - case 'p': /* photometric interpretation */ - if (strncmp(optarg, "miniswhite", 10) == 0) - photometric = PHOTOMETRIC_MINISWHITE; - else if (strncmp(optarg, "minisblack", 10) == 0) - photometric = PHOTOMETRIC_MINISBLACK; - else if (strncmp(optarg, "rgb", 3) == 0) - photometric = PHOTOMETRIC_RGB; - else if (strncmp(optarg, "cmyk", 4) == 0) - photometric = PHOTOMETRIC_SEPARATED; - else if (strncmp(optarg, "ycbcr", 5) == 0) - photometric = PHOTOMETRIC_YCBCR; - else if (strncmp(optarg, "cielab", 6) == 0) - photometric = PHOTOMETRIC_CIELAB; - else if (strncmp(optarg, "icclab", 6) == 0) - photometric = PHOTOMETRIC_ICCLAB; - else if (strncmp(optarg, "itulab", 6) == 0) - photometric = PHOTOMETRIC_ITULAB; - else - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 's': /* do we need to swap bytes? */ - swab = 1; - break; - case 'i': /* type of interleaving */ - if (strncmp(optarg, "pixel", 4) == 0) - interleaving = PIXEL; - else if (strncmp(optarg, "band", 6) == 0) - interleaving = BAND; - else - interleaving = 0; - break; - case 'o': - outfilename = optarg; - break; - case 'h': - usage(); - default: - break; - } - } - - if (argc - optind < 2) - usage(); - - fd = open(argv[optind], O_RDONLY|O_BINARY, 0); - if (fd < 0) { - fprintf(stderr, "%s: %s: Cannot open input file.\n", - argv[0], argv[optind]); - return (-1); - } - - if (guessSize(fd, dtype, hdr_size, nbands, swab, &width, &length) < 0) - return 1; - - if (outfilename == NULL) - outfilename = argv[optind+1]; - out = TIFFOpen(outfilename, "w"); - if (out == NULL) { - fprintf(stderr, "%s: %s: Cannot open file for output.\n", - argv[0], outfilename); - return (-1); - } - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, length); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, nbands); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, depth * 8); - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric); - switch (dtype) { - case TIFF_BYTE: - case TIFF_SHORT: - case TIFF_LONG: - TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT); - break; - case TIFF_SBYTE: - case TIFF_SSHORT: - case TIFF_SLONG: - TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_INT); - break; - case TIFF_FLOAT: - case TIFF_DOUBLE: - TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP); - break; - default: - TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_VOID); - break; - } - if (compression == (uint16) -1) - compression = COMPRESSION_PACKBITS; - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_JPEG: - if (photometric == PHOTOMETRIC_RGB - && jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - switch(interleaving) { - case BAND: /* band interleaved data */ - linebytes = width * depth; - buf = (unsigned char *)_TIFFmalloc(linebytes); - break; - case PIXEL: /* pixel interleaved data */ - default: - linebytes = width * nbands * depth; - break; - } - bufsize = width * nbands * depth; - buf1 = (unsigned char *)_TIFFmalloc(bufsize); - - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - if (rowsperstrip > length) { - rowsperstrip = length; - } - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip ); - - lseek(fd, hdr_size, SEEK_SET); /* Skip the file header */ - for (row = 0; row < length; row++) { - switch(interleaving) { - case BAND: /* band interleaved data */ - for (band = 0; band < nbands; band++) { - lseek(fd, - hdr_size + (length*band+row)*linebytes, - SEEK_SET); - if (read(fd, buf, linebytes) < 0) { - fprintf(stderr, - "%s: %s: scanline %lu: Read error.\n", - argv[0], argv[optind], - (unsigned long) row); - break; - } - if (swab) /* Swap bytes if needed */ - swapBytesInScanline(buf, width, dtype); - for (col = 0; col < width; col++) - memcpy(buf1 + (col*nbands+band)*depth, - buf + col * depth, depth); - } - break; - case PIXEL: /* pixel interleaved data */ - default: - if (read(fd, buf1, bufsize) < 0) { - fprintf(stderr, - "%s: %s: scanline %lu: Read error.\n", - argv[0], argv[optind], - (unsigned long) row); - break; - } - if (swab) /* Swap bytes if needed */ - swapBytesInScanline(buf1, width, dtype); - break; - } - - if (TIFFWriteScanline(out, buf1, row, 0) < 0) { - fprintf(stderr, "%s: %s: scanline %lu: Write error.\n", - argv[0], outfilename, (unsigned long) row); - break; - } - } - if (buf) - _TIFFfree(buf); - if (buf1) - _TIFFfree(buf1); - TIFFClose(out); - return (0); -} - -static void -swapBytesInScanline(void *buf, uint32 width, TIFFDataType dtype) -{ - switch (dtype) { - case TIFF_SHORT: - case TIFF_SSHORT: - TIFFSwabArrayOfShort((uint16*)buf, - (unsigned long)width); - break; - case TIFF_LONG: - case TIFF_SLONG: - TIFFSwabArrayOfLong((uint32*)buf, - (unsigned long)width); - break; - /* case TIFF_FLOAT: */ /* FIXME */ - case TIFF_DOUBLE: - TIFFSwabArrayOfDouble((double*)buf, - (unsigned long)width); - break; - default: - break; - } -} - -static int -guessSize(int fd, TIFFDataType dtype, off_t hdr_size, uint32 nbands, - int swab, uint32 *width, uint32 *length) -{ - const float longt = 40.0; /* maximum possible height/width ratio */ - char *buf1, *buf2; - struct stat filestat; - uint32 w, h, scanlinesize, imagesize; - uint32 depth = TIFFDataWidth(dtype); - float cor_coef = 0, tmp; - - fstat(fd, &filestat); - - if (filestat.st_size < hdr_size) { - fprintf(stderr, "Too large header size specified.\n"); - return -1; - } - - imagesize = (filestat.st_size - hdr_size) / nbands / depth; - - if (*width != 0 && *length == 0) { - fprintf(stderr, "Image height is not specified.\n"); - - *length = imagesize / *width; - - fprintf(stderr, "Height is guessed as %lu.\n", - (unsigned long)*length); - - return 1; - } else if (*width == 0 && *length != 0) { - fprintf(stderr, "Image width is not specified.\n"); - - *width = imagesize / *length; - - fprintf(stderr, "Width is guessed as %lu.\n", - (unsigned long)*width); - - return 1; - } else if (*width == 0 && *length == 0) { - fprintf(stderr, "Image width and height are not specified.\n"); - - for (w = (uint32) sqrt(imagesize / longt); - w < sqrt(imagesize * longt); - w++) { - if (imagesize % w == 0) { - scanlinesize = w * depth; - buf1 = _TIFFmalloc(scanlinesize); - buf2 = _TIFFmalloc(scanlinesize); - h = imagesize / w; - lseek(fd, hdr_size + (int)(h/2)*scanlinesize, - SEEK_SET); - read(fd, buf1, scanlinesize); - read(fd, buf2, scanlinesize); - if (swab) { - swapBytesInScanline(buf1, w, dtype); - swapBytesInScanline(buf2, w, dtype); - } - tmp = (float) fabs(correlation(buf1, buf2, - w, dtype)); - if (tmp > cor_coef) { - cor_coef = tmp; - *width = w, *length = h; - } - - _TIFFfree(buf1); - _TIFFfree(buf2); - } - } - - fprintf(stderr, - "Width is guessed as %lu, height is guessed as %lu.\n", - (unsigned long)*width, (unsigned long)*length); - - return 1; - } else { - if (filestat.st_size<(off_t)(hdr_size+(*width)*(*length)*nbands*depth)) { - fprintf(stderr, "Input file too small.\n"); - return -1; - } - } - - return 1; -} - -/* Calculate correlation coefficient between two numeric vectors */ -static double -correlation(void *buf1, void *buf2, uint32 n_elem, TIFFDataType dtype) -{ - double X, Y, M1 = 0.0, M2 = 0.0, D1 = 0.0, D2 = 0.0, K = 0.0; - uint32 i; - - switch (dtype) { - case TIFF_BYTE: - default: - for (i = 0; i < n_elem; i++) { - X = ((unsigned char *)buf1)[i]; - Y = ((unsigned char *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_SBYTE: - for (i = 0; i < n_elem; i++) { - X = ((signed char *)buf1)[i]; - Y = ((signed char *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_SHORT: - for (i = 0; i < n_elem; i++) { - X = ((uint16 *)buf1)[i]; - Y = ((uint16 *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_SSHORT: - for (i = 0; i < n_elem; i++) { - X = ((int16 *)buf1)[i]; - Y = ((int16 *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_LONG: - for (i = 0; i < n_elem; i++) { - X = ((uint32 *)buf1)[i]; - Y = ((uint32 *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_SLONG: - for (i = 0; i < n_elem; i++) { - X = ((int32 *)buf1)[i]; - Y = ((int32 *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_FLOAT: - for (i = 0; i < n_elem; i++) { - X = ((float *)buf1)[i]; - Y = ((float *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - case TIFF_DOUBLE: - for (i = 0; i < n_elem; i++) { - X = ((double *)buf1)[i]; - Y = ((double *)buf2)[i]; - M1 += X, M2 += Y; - D1 += X * X, D2 += Y * Y; - K += X * Y; - } - break; - } - - M1 /= n_elem; - M2 /= n_elem; - D1 -= M1 * M1 * n_elem; - D2 -= M2 * M2 * n_elem; - K = (K - M1 * M2 * n_elem) / sqrt(D1 * D2); - - return K; -} - -static int -processCompressOptions(char* opt) -{ - if (strcmp(opt, "none") == 0) - compression = COMPRESSION_NONE; - else if (strcmp(opt, "packbits") == 0) - compression = COMPRESSION_PACKBITS; - else if (strncmp(opt, "jpeg", 4) == 0) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strncmp(opt, "lzw", 3) == 0) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strncmp(opt, "zip", 3) == 0) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -static char* stuff[] = { -"raw2tiff --- tool for converting raw byte sequences in TIFF images", -"usage: raw2tiff [options] input.raw output.tif", -"where options are:", -" -L input data has LSB2MSB bit order (default)", -" -M input data has MSB2LSB bit order", -" -r # make each strip have no more than # rows", -" -H # size of input image file header in bytes (0 by default)", -" -w # width of input image in pixels", -" -l # length of input image in lines", -" -b # number of bands in input image (1 by default)", -"", -" -d data_type type of samples in input image", -"where data_type may be:", -" byte 8-bit unsigned integer (default)", -" short 16-bit unsigned integer", -" long 32-bit unsigned integer", -" sbyte 8-bit signed integer", -" sshort 16-bit signed integer", -" slong 32-bit signed integer", -" float 32-bit IEEE floating point", -" double 64-bit IEEE floating point", -"", -" -p photo photometric interpretation (color space) of the input image", -"where photo may be:", -" miniswhite white color represented with 0 value", -" minisblack black color represented with 0 value (default)", -" rgb image has RGB color model", -" cmyk image has CMYK (separated) color model", -" ycbcr image has YCbCr color model", -" cielab image has CIE L*a*b color model", -" icclab image has ICC L*a*b color model", -" itulab image has ITU L*a*b color model", -"", -" -s swap bytes fetched from input file", -"", -" -i config type of samples interleaving in input image", -"where config may be:", -" pixel pixel interleaved data (default)", -" band band interleaved data", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c jpeg[:opts] compress output with JPEG encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -" -o out.tif write output to out.tif", -" -h this help message", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/rgb2ycbcr.c b/tiff/tools/rgb2ycbcr.c deleted file mode 100755 index a3eeb03..0000000 --- a/tiff/tools/rgb2ycbcr.c +++ /dev/null @@ -1,391 +0,0 @@ -/* $Id: rgb2ycbcr.c,v 1.15 2013-05-02 14:44:29 tgl Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffiop.h" -#include "tiffio.h" - -#define streq(a,b) (strcmp(a,b) == 0) -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) - -#ifndef howmany -#define howmany(x, y) (((x)+((y)-1))/(y)) -#endif -#define roundup(x, y) (howmany(x,y)*((uint32)(y))) - -#define LumaRed ycbcrCoeffs[0] -#define LumaGreen ycbcrCoeffs[1] -#define LumaBlue ycbcrCoeffs[2] - -uint16 compression = COMPRESSION_PACKBITS; -uint32 rowsperstrip = (uint32) -1; - -uint16 horizSubSampling = 2; /* YCbCr horizontal subsampling */ -uint16 vertSubSampling = 2; /* YCbCr vertical subsampling */ -float ycbcrCoeffs[3] = { .299F, .587F, .114F }; -/* default coding range is CCIR Rec 601-1 with no headroom/footroom */ -float refBlackWhite[6] = { 0.F, 255.F, 128.F, 255.F, 128.F, 255.F }; - -static int tiffcvt(TIFF* in, TIFF* out); -static void usage(int code); -static void setupLumaTables(void); - -int -main(int argc, char* argv[]) -{ - TIFF *in, *out; - int c; - extern int optind; - extern char *optarg; - - while ((c = getopt(argc, argv, "c:h:r:v:z")) != -1) - switch (c) { - case 'c': - if (streq(optarg, "none")) - compression = COMPRESSION_NONE; - else if (streq(optarg, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (streq(optarg, "lzw")) - compression = COMPRESSION_LZW; - else if (streq(optarg, "jpeg")) - compression = COMPRESSION_JPEG; - else if (streq(optarg, "zip")) - compression = COMPRESSION_ADOBE_DEFLATE; - else - usage(-1); - break; - case 'h': - horizSubSampling = atoi(optarg); - break; - case 'v': - vertSubSampling = atoi(optarg); - break; - case 'r': - rowsperstrip = atoi(optarg); - break; - case 'z': /* CCIR Rec 601-1 w/ headroom/footroom */ - refBlackWhite[0] = 16.; - refBlackWhite[1] = 235.; - refBlackWhite[2] = 128.; - refBlackWhite[3] = 240.; - refBlackWhite[4] = 128.; - refBlackWhite[5] = 240.; - break; - case '?': - usage(0); - /*NOTREACHED*/ - } - if (argc - optind < 2) - usage(-1); - out = TIFFOpen(argv[argc-1], "w"); - if (out == NULL) - return (-2); - setupLumaTables(); - for (; optind < argc-1; optind++) { - in = TIFFOpen(argv[optind], "r"); - if (in != NULL) { - do { - if (!tiffcvt(in, out) || - !TIFFWriteDirectory(out)) { - (void) TIFFClose(out); - return (1); - } - } while (TIFFReadDirectory(in)); - (void) TIFFClose(in); - } - } - (void) TIFFClose(out); - return (0); -} - -float *lumaRed; -float *lumaGreen; -float *lumaBlue; -float D1, D2; -int Yzero; - -static float* -setupLuma(float c) -{ - float *v = (float *)_TIFFmalloc(256 * sizeof (float)); - int i; - for (i = 0; i < 256; i++) - v[i] = c * i; - return (v); -} - -static unsigned -V2Code(float f, float RB, float RW, int CR) -{ - unsigned int c = (unsigned int)((((f)*(RW-RB)/CR)+RB)+.5); - return (c > 255 ? 255 : c); -} - -static void -setupLumaTables(void) -{ - lumaRed = setupLuma(LumaRed); - lumaGreen = setupLuma(LumaGreen); - lumaBlue = setupLuma(LumaBlue); - D1 = 1.F/(2.F - 2.F*LumaBlue); - D2 = 1.F/(2.F - 2.F*LumaRed); - Yzero = V2Code(0, refBlackWhite[0], refBlackWhite[1], 255); -} - -static void -cvtClump(unsigned char* op, uint32* raster, uint32 ch, uint32 cw, uint32 w) -{ - float Y, Cb = 0, Cr = 0; - uint32 j, k; - /* - * Convert ch-by-cw block of RGB - * to YCbCr and sample accordingly. - */ - for (k = 0; k < ch; k++) { - for (j = 0; j < cw; j++) { - uint32 RGB = (raster - k*w)[j]; - Y = lumaRed[TIFFGetR(RGB)] + - lumaGreen[TIFFGetG(RGB)] + - lumaBlue[TIFFGetB(RGB)]; - /* accumulate chrominance */ - Cb += (TIFFGetB(RGB) - Y) * D1; - Cr += (TIFFGetR(RGB) - Y) * D2; - /* emit luminence */ - *op++ = V2Code(Y, - refBlackWhite[0], refBlackWhite[1], 255); - } - for (; j < horizSubSampling; j++) - *op++ = Yzero; - } - for (; k < vertSubSampling; k++) { - for (j = 0; j < horizSubSampling; j++) - *op++ = Yzero; - } - /* emit sampled chrominance values */ - *op++ = V2Code(Cb / (ch*cw), refBlackWhite[2], refBlackWhite[3], 127); - *op++ = V2Code(Cr / (ch*cw), refBlackWhite[4], refBlackWhite[5], 127); -} -#undef LumaRed -#undef LumaGreen -#undef LumaBlue -#undef V2Code - -/* - * Convert a strip of RGB data to YCbCr and - * sample to generate the output data. - */ -static void -cvtStrip(unsigned char* op, uint32* raster, uint32 nrows, uint32 width) -{ - uint32 x; - int clumpSize = vertSubSampling * horizSubSampling + 2; - uint32 *tp; - - for (; nrows >= vertSubSampling; nrows -= vertSubSampling) { - tp = raster; - for (x = width; x >= horizSubSampling; x -= horizSubSampling) { - cvtClump(op, tp, - vertSubSampling, horizSubSampling, width); - op += clumpSize; - tp += horizSubSampling; - } - if (x > 0) { - cvtClump(op, tp, vertSubSampling, x, width); - op += clumpSize; - } - raster -= vertSubSampling*width; - } - if (nrows > 0) { - tp = raster; - for (x = width; x >= horizSubSampling; x -= horizSubSampling) { - cvtClump(op, tp, nrows, horizSubSampling, width); - op += clumpSize; - tp += horizSubSampling; - } - if (x > 0) - cvtClump(op, tp, nrows, x, width); - } -} - -static int -cvtRaster(TIFF* tif, uint32* raster, uint32 width, uint32 height) -{ - uint32 y; - tstrip_t strip = 0; - tsize_t cc, acc; - unsigned char* buf; - uint32 rwidth = roundup(width, horizSubSampling); - uint32 rheight = roundup(height, vertSubSampling); - uint32 nrows = (rowsperstrip > rheight ? rheight : rowsperstrip); - uint32 rnrows = roundup(nrows,vertSubSampling); - - cc = rnrows*rwidth + - 2*((rnrows*rwidth) / (horizSubSampling*vertSubSampling)); - buf = (unsigned char*)_TIFFmalloc(cc); - // FIXME unchecked malloc - for (y = height; (int32) y > 0; y -= nrows) { - uint32 nr = (y > nrows ? nrows : y); - cvtStrip(buf, raster + (y-1)*width, nr, width); - nr = roundup(nr, vertSubSampling); - acc = nr*rwidth + - 2*((nr*rwidth)/(horizSubSampling*vertSubSampling)); - if (!TIFFWriteEncodedStrip(tif, strip++, buf, acc)) { - _TIFFfree(buf); - return (0); - } - } - _TIFFfree(buf); - return (1); -} - -static int -tiffcvt(TIFF* in, TIFF* out) -{ - uint32 width, height; /* image width & height */ - uint32* raster; /* retrieve RGBA image */ - uint16 shortv; - float floatv; - char *stringv; - uint32 longv; - int result; - size_t pixel_count; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height); - pixel_count = width * height; - - /* XXX: Check the integer overflow. */ - if (!width || !height || pixel_count / width != height) { - TIFFError(TIFFFileName(in), - "Malformed input file; " - "can't allocate buffer for raster of %lux%lu size", - (unsigned long)width, (unsigned long)height); - return 0; - } - - raster = (uint32*)_TIFFCheckMalloc(in, pixel_count, sizeof(uint32), - "raster buffer"); - if (raster == 0) { - TIFFError(TIFFFileName(in), - "Failed to allocate buffer (%lu elements of %lu each)", - (unsigned long)pixel_count, - (unsigned long)sizeof(uint32)); - return (0); - } - - if (!TIFFReadRGBAImage(in, width, height, raster, 0)) { - _TIFFfree(raster); - return (0); - } - - CopyField(TIFFTAG_SUBFILETYPE, longv); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, height); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - if (compression == COMPRESSION_JPEG) - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW); - CopyField(TIFFTAG_FILLORDER, shortv); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3); - CopyField(TIFFTAG_XRESOLUTION, floatv); - CopyField(TIFFTAG_YRESOLUTION, floatv); - CopyField(TIFFTAG_RESOLUTIONUNIT, shortv); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - { char buf[2048]; - char *cp = strrchr(TIFFFileName(in), '/'); - snprintf(buf, sizeof(buf), "YCbCr conversion of %s", - cp ? cp+1 : TIFFFileName(in)); - TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, buf); - } - TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion()); - CopyField(TIFFTAG_DOCUMENTNAME, stringv); - - TIFFSetField(out, TIFFTAG_REFERENCEBLACKWHITE, refBlackWhite); - TIFFSetField(out, TIFFTAG_YCBCRSUBSAMPLING, - horizSubSampling, vertSubSampling); - TIFFSetField(out, TIFFTAG_YCBCRPOSITIONING, YCBCRPOSITION_CENTERED); - TIFFSetField(out, TIFFTAG_YCBCRCOEFFICIENTS, ycbcrCoeffs); - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - result = cvtRaster(out, raster, width, height); - _TIFFfree(raster); - return result; -} - -char* stuff[] = { - "usage: rgb2ycbcr [-c comp] [-r rows] [-h N] [-v N] input... output\n", - "where comp is one of the following compression algorithms:\n", - " jpeg\t\tJPEG encoding\n", - " lzw\t\tLempel-Ziv & Welch encoding\n", - " zip\t\tdeflate encoding\n", - " packbits\tPackBits encoding (default)\n", - " none\t\tno compression\n", - "and the other options are:\n", - " -r\trows/strip\n", - " -h\thorizontal sampling factor (1,2,4)\n", - " -v\tvertical sampling factor (1,2,4)\n", - NULL -}; - -static void -usage(int code) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(code); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/sgi2tiff.c b/tiff/tools/sgi2tiff.c deleted file mode 100755 index 227e621..0000000 --- a/tiff/tools/sgi2tiff.c +++ /dev/null @@ -1,335 +0,0 @@ -/* $Id: sgi2tiff.c,v 1.6 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include -#include -#include -#include -#include - -#include "tiffio.h" - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -static short config = PLANARCONFIG_CONTIG; -static uint16 compression = COMPRESSION_PACKBITS; -static uint16 predictor = 0; -static uint16 fillorder = 0; -static uint32 rowsperstrip = (uint32) -1; -static int jpegcolormode = JPEGCOLORMODE_RGB; -static int quality = 75; /* JPEG quality */ -static uint16 photometric; - -static void usage(void); -static int cpContig(IMAGE*, TIFF*); -static int cpSeparate(IMAGE*, TIFF*); -static int processCompressOptions(char*); - -/* XXX image library has no prototypes */ -extern IMAGE* iopen(const char*, const char*); -extern void iclose(IMAGE*); -extern void getrow(IMAGE*, short*, int, int); - -int -main(int argc, char* argv[]) -{ - IMAGE *in; - TIFF *out; - int c; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "c:p:r:")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'f': /* fill order */ - if (streq(optarg, "lsb2msb")) - fillorder = FILLORDER_LSB2MSB; - else if (streq(optarg, "msb2lsb")) - fillorder = FILLORDER_MSB2LSB; - else - usage(); - break; - case 'p': /* planar configuration */ - if (streq(optarg, "separate")) - config = PLANARCONFIG_SEPARATE; - else if (streq(optarg, "contig")) - config = PLANARCONFIG_CONTIG; - else - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 2) - usage(); - in = iopen(argv[optind], "r"); - if (in == NULL) - return (-1); - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return (-2); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) in->xsize); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) in->ysize); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - if (in->zsize == 1) - photometric = PHOTOMETRIC_MINISBLACK; - else - photometric = PHOTOMETRIC_RGB; - switch (compression) { - case COMPRESSION_JPEG: - if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, photometric); - if (fillorder != 0) - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, in->zsize); - if (in->zsize > 3) { - uint16 v[1]; - v[0] = EXTRASAMPLE_UNASSALPHA; - TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v); - } - TIFFSetField(out, TIFFTAG_MINSAMPLEVALUE, (uint16) in->min); - TIFFSetField(out, TIFFTAG_MAXSAMPLEVALUE, (uint16) in->max); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - if (config != PLANARCONFIG_SEPARATE) - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - else /* force 1 row/strip for library limitation */ - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, 1L); - if (in->name[0] != '\0') - TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, in->name); - if (config == PLANARCONFIG_CONTIG) - cpContig(in, out); - else - cpSeparate(in, out); - (void) iclose(in); - (void) TIFFClose(out); - return (0); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - defcompression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -static int -cpContig(IMAGE* in, TIFF* out) -{ - tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out)); - short *r = NULL; - int x, y; - - if (in->zsize == 3) { - short *g, *b; - - r = (short *)_TIFFmalloc(3 * in->xsize * sizeof (short)); - g = r + in->xsize; - b = g + in->xsize; - for (y = in->ysize-1; y >= 0; y--) { - uint8* pp = (uint8*) buf; - - getrow(in, r, y, 0); - getrow(in, g, y, 1); - getrow(in, b, y, 2); - for (x = 0; x < in->xsize; x++) { - pp[0] = r[x]; - pp[1] = g[x]; - pp[2] = b[x]; - pp += 3; - } - if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0) - goto bad; - } - } else if (in->zsize == 4) { - short *g, *b, *a; - - r = (short *)_TIFFmalloc(4 * in->xsize * sizeof (short)); - g = r + in->xsize; - b = g + in->xsize; - a = b + in->xsize; - for (y = in->ysize-1; y >= 0; y--) { - uint8* pp = (uint8*) buf; - - getrow(in, r, y, 0); - getrow(in, g, y, 1); - getrow(in, b, y, 2); - getrow(in, a, y, 3); - for (x = 0; x < in->xsize; x++) { - pp[0] = r[x]; - pp[1] = g[x]; - pp[2] = b[x]; - pp[3] = a[x]; - pp += 4; - } - if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0) - goto bad; - } - } else { - uint8* pp = (uint8*) buf; - - r = (short *)_TIFFmalloc(in->xsize * sizeof (short)); - for (y = in->ysize-1; y >= 0; y--) { - getrow(in, r, y, 0); - for (x = in->xsize-1; x >= 0; x--) - pp[x] = r[x]; - if (TIFFWriteScanline(out, buf, in->ysize-y-1, 0) < 0) - goto bad; - } - } - if (r) - _TIFFfree(r); - _TIFFfree(buf); - return (1); -bad: - if (r) - _TIFFfree(r); - _TIFFfree(buf); - return (0); -} - -static int -cpSeparate(IMAGE* in, TIFF* out) -{ - tdata_t buf = _TIFFmalloc(TIFFScanlineSize(out)); - short *r = (short *)_TIFFmalloc(in->xsize * sizeof (short)); - uint8* pp = (uint8*) buf; - int x, y, z; - - for (z = 0; z < in->zsize; z++) { - for (y = in->ysize-1; y >= 0; y--) { - getrow(in, r, y, z); - for (x = 0; x < in->xsize; x++) - pp[x] = r[x]; - if (TIFFWriteScanline(out, buf, in->ysize-y-1, z) < 0) - goto bad; - } - } - _TIFFfree(r); - _TIFFfree(buf); - return (1); -bad: - _TIFFfree(r); - _TIFFfree(buf); - return (0); -} - -char* stuff[] = { -"usage: sgi2tiff [options] input.rgb output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -"", -" -p contig pack samples contiguously (e.g. RGBRGB...)", -" -p separate store samples separately (e.g. RRR...GGG...BBB...)", -"", -" -f lsb2msb force lsb-to-msb FillOrder for output", -" -f msb2lsb force msb-to-lsb FillOrder for output", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c jpeg[:opts]compress output with JPEG encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/sgisv.c b/tiff/tools/sgisv.c deleted file mode 100755 index e0d91e0..0000000 --- a/tiff/tools/sgisv.c +++ /dev/null @@ -1,316 +0,0 @@ -/* $Id: sgisv.c,v 1.6 2010-03-10 18:56:49 bfriesen Exp $ */ - -/* - * Copyright (c) 1990-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include -#include -#include - -#include -#include - -#include "tiffio.h" - -typedef unsigned char unsigned char; -typedef unsigned long uint32; - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -uint32 rowsperstrip = (uint32) -1; -uint16 compression = COMPRESSION_PACKBITS; -uint16 config = PLANARCONFIG_CONTIG; -uint16 predictor = 0; -int xmaxscreen; -int ymaxscreen; -uint16 photometric = PHOTOMETRIC_RGB; -int jpegcolormode = JPEGCOLORMODE_RGB; -int quality = 75; /* JPEG quality */ - -static void usage(void); -static void tiffsv(char*, int, int, int, int); - -int -main(int argc, char* argv[]) -{ - int c; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "c:p:r:")) != -1) - switch (c) { - case 'b': /* save as b&w */ - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 'c': /* compression scheme */ - if (streq(optarg, "none")) - compression = COMPRESSION_NONE; - else if (streq(optarg, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(optarg, "jpeg", 4)) { - char* cp = strchr(optarg, ':'); - if (cp && isdigit(cp[1])) - quality = atoi(cp+1); - if (cp && strchr(cp, 'r')) - jpegcolormode = JPEGCOLORMODE_RAW; - compression = COMPRESSION_JPEG; - } else if (strneq(optarg, "lzw", 3)) { - char* cp = strchr(optarg, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else - usage(); - break; - case 'p': /* planar configuration */ - if (streq(optarg, "separate")) - config = PLANARCONFIG_SEPARATE; - else if (streq(optarg, "contig")) - config = PLANARCONFIG_CONTIG; - else - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 1 && argc - optind != 5) - usage(); - xmaxscreen = getgdesc(GD_XPMAX)-1; - ymaxscreen = getgdesc(GD_YPMAX)-1; - foreground(); - noport(); - winopen("tiffsv"); - if (argc - optind == 5) - tiffsv(argv[optind], - atoi(argv[optind+1]), atoi(argv[optind+2]), - atoi(argv[optind+3]), atoi(argv[optind+4])); - else - tiffsv(argv[optind], 0, xmaxscreen, 0, ymaxscreen); - return (0); -} - -char* stuff[] = { -"usage: tiffsv [options] outimage.tif [x1 x2 y1 y2] [-b]", -"where options are:", -" -p contig pack samples contiguously (e.g. RGBRGB...)", -" -p separate store samples separately (e.g. RRR...GGG...BBB...)", -"", -" -r # make each strip have no more than # rows", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c jpeg[:opts]compress output with JPEG encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"", -"LZW options:", -" # set predictor value for Lempel-Ziv & Welch encoding", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -static void -svRGBSeparate(TIFF* tif, uint32* ss, int xsize, int ysize) -{ - tsize_t stripsize = TIFFStripSize(tif); - unsigned char *rbuf = (unsigned char *)_TIFFmalloc(3*stripsize); - unsigned char *gbuf = rbuf + stripsize; - unsigned char *bbuf = gbuf + stripsize; - register int y; - - for (y = 0; y <= ysize; y += rowsperstrip) { - unsigned char *rp, *gp, *bp; - register int x; - register uint32 n; - - n = rowsperstrip; - if (n > ysize-y+1) - n = ysize-y+1; - rp = rbuf; gp = gbuf; bp = bbuf; - do { - for (x = 0; x <= xsize; x++) { - uint32 v = ss[x]; - rp[x] = v; - gp[x] = v >> 8; - bp[x] = v >> 16; - } - rp += xsize+1, gp += xsize+1, bp += xsize+1; - ss += xsize+1; - } while (--n); - if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,0), - rbuf, stripsize) < 0) - break; - if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,1), - gbuf, stripsize) < 0) - break; - if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,2), - bbuf, stripsize) < 0) - break; - } - _TIFFfree(rbuf); -} - -static void -svRGBContig(TIFF* tif, uint32* ss, int xsize, int ysize) -{ - register int x, y; - tsize_t stripsize = TIFFStripSize(tif); - unsigned char *strip = (unsigned char *)_TIFFmalloc(stripsize); - - for (y = 0; y <= ysize; y += rowsperstrip) { - register unsigned char *pp = strip; - register uint32 n; - - n = rowsperstrip; - if (n > ysize-y+1) - n = ysize-y+1; - do { - for (x = 0; x <= xsize; x++) { - uint32 v = ss[x]; - pp[0] = v; - pp[1] = v >> 8; - pp[2] = v >> 16; - pp += 3; - } - ss += xsize+1; - } while (--n); - if (TIFFWriteEncodedStrip(tif, TIFFComputeStrip(tif,y,0), - strip, stripsize) < 0) - break; - } - _TIFFfree(strip); -} - -#undef RED -#undef GREEN -#undef BLUE -#define CVT(x) (((x)*255)/100) -#define RED CVT(28) /* 28% */ -#define GREEN CVT(59) /* 59% */ -#define BLUE CVT(11) /* 11% */ - -static void -svGrey(TIFF* tif, uint32* ss, int xsize, int ysize) -{ - register int x, y; - unsigned char *buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif)); - - for (y = 0; y <= ysize; y++) { - for (x = 0; x <= xsize; x++) { - unsigned char *cp = (unsigned char *)&ss[x]; - buf[x] = (RED*cp[3] + GREEN*cp[2] + BLUE*cp[1]) >> 8; - } - if (TIFFWriteScanline(tif, buf, (uint32) y, 0) < 0) - break; - ss += xsize+1; - } - _TIFFfree(buf); -} - -#define MIN(a,b) ((a)<(b)?(a):(b)) -#define ABS(x) ((x)<0?-(x):(x)) - -static void -tiffsv(char* name, int x1, int x2, int y1, int y2) -{ - TIFF *tif; - int xsize, ysize; - int xorg, yorg; - uint32 *scrbuf; - - xorg = MIN(x1,x2); - yorg = MIN(y1,y2); - if (xorg<0) - xorg = 0; - if (yorg<0) - yorg = 0; - xsize = ABS(x2-x1); - ysize = ABS(y2-y1); - if (xorg+xsize > xmaxscreen) - xsize = xmaxscreen-xorg; - if (yorg+ysize > ymaxscreen) - ysize = ymaxscreen-yorg; - tif = TIFFOpen(name, "w"); - TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (uint32) (xsize+1)); - TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (uint32) (ysize+1)); - TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, - photometric == PHOTOMETRIC_RGB ? 3 : 1); - TIFFSetField(tif, TIFFTAG_PLANARCONFIG, config); - TIFFSetField(tif, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_JPEG: - if (photometric == PHOTOMETRIC_RGB && jpegcolormode == JPEGCOLORMODE_RGB) - photometric = PHOTOMETRIC_YCBCR; - TIFFSetField(tif, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - if (predictor != 0) - TIFFSetField(tif, TIFFTAG_PREDICTOR, predictor); - break; - } - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric); - TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_BOTLEFT); - rowsperstrip = TIFFDefaultStripSize(tif, rowsperstrip); - TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - scrbuf = (uint32 *)_TIFFmalloc((xsize+1)*(ysize+1)*sizeof (uint32)); - readdisplay(xorg, yorg, xorg+xsize, yorg+ysize, scrbuf, RD_FREEZE); - if (photometric == PHOTOMETRIC_RGB) { - if (config == PLANARCONFIG_SEPARATE) - svRGBSeparate(tif, scrbuf, xsize, ysize); - else - svRGBContig(tif, scrbuf, xsize, ysize); - } else - svGrey(tif, scrbuf, xsize, ysize); - (void) TIFFClose(tif); - _TIFFfree((char *)scrbuf); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/thumbnail.c b/tiff/tools/thumbnail.c deleted file mode 100755 index 2699324..0000000 --- a/tiff/tools/thumbnail.c +++ /dev/null @@ -1,689 +0,0 @@ -/* $Id: thumbnail.c,v 1.20 2014-12-21 20:04:31 erouault Exp $ */ - -/* - * Copyright (c) 1994-1997 Sam Leffler - * Copyright (c) 1994-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#define streq(a,b) (strcmp(a,b) == 0) - -#ifndef TIFFhowmany8 -# define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) -#endif - -typedef enum { - EXP50, - EXP60, - EXP70, - EXP80, - EXP90, - EXP, - LINEAR -} Contrast; - -static uint32 tnw = 216; /* thumbnail width */ -static uint32 tnh = 274; /* thumbnail height */ -static Contrast contrast = LINEAR; /* current contrast */ -static uint8* thumbnail; - -static int cpIFD(TIFF*, TIFF*); -static int generateThumbnail(TIFF*, TIFF*); -static void initScale(); -static void usage(void); - -extern char* optarg; -extern int optind; - -int -main(int argc, char* argv[]) -{ - TIFF* in; - TIFF* out; - int c; - - while ((c = getopt(argc, argv, "w:h:c:")) != -1) { - switch (c) { - case 'w': tnw = strtoul(optarg, NULL, 0); break; - case 'h': tnh = strtoul(optarg, NULL, 0); break; - case 'c': contrast = streq(optarg, "exp50") ? EXP50 : - streq(optarg, "exp60") ? EXP60 : - streq(optarg, "exp70") ? EXP70 : - streq(optarg, "exp80") ? EXP80 : - streq(optarg, "exp90") ? EXP90 : - streq(optarg, "exp") ? EXP : - streq(optarg, "linear")? LINEAR : - EXP; - break; - default: usage(); - } - } - if (argc-optind != 2) - usage(); - - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return 2; - in = TIFFOpen(argv[optind], "r"); - if( in == NULL ) - return 2; - - thumbnail = (uint8*) _TIFFmalloc(tnw * tnh); - if (!thumbnail) { - TIFFError(TIFFFileName(in), - "Can't allocate space for thumbnail buffer."); - return 1; - } - - if (in != NULL) { - initScale(); - do { - if (!generateThumbnail(in, out)) - goto bad; - if (!cpIFD(in, out) || !TIFFWriteDirectory(out)) - goto bad; - } while (TIFFReadDirectory(in)); - (void) TIFFClose(in); - } - (void) TIFFClose(out); - return 0; -bad: - (void) TIFFClose(out); - return 1; -} - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) -#define CopyField4(tag, v1, v2, v3, v4) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4) - -static void -cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type) -{ - switch (type) { - case TIFF_SHORT: - if (count == 1) { - uint16 shortv; - CopyField(tag, shortv); - } else if (count == 2) { - uint16 shortv1, shortv2; - CopyField2(tag, shortv1, shortv2); - } else if (count == 4) { - uint16 *tr, *tg, *tb, *ta; - CopyField4(tag, tr, tg, tb, ta); - } else if (count == (uint16) -1) { - uint16 shortv1; - uint16* shortav; - CopyField2(tag, shortv1, shortav); - } - break; - case TIFF_LONG: - { uint32 longv; - CopyField(tag, longv); - } - break; - case TIFF_LONG8: - { uint64 longv8; - CopyField(tag, longv8); - } - break; - case TIFF_SLONG8: - { int64 longv8; - CopyField(tag, longv8); - } - break; - case TIFF_RATIONAL: - if (count == 1) { - float floatv; - CopyField(tag, floatv); - } else if (count == (uint16) -1) { - float* floatav; - CopyField(tag, floatav); - } - break; - case TIFF_ASCII: - { char* stringv; - CopyField(tag, stringv); - } - break; - case TIFF_DOUBLE: - if (count == 1) { - double doublev; - CopyField(tag, doublev); - } else if (count == (uint16) -1) { - double* doubleav; - CopyField(tag, doubleav); - } - break; - case TIFF_IFD8: - { toff_t ifd8; - CopyField(tag, ifd8); - } - break; default: - TIFFError(TIFFFileName(in), - "Data type %d is not supported, tag %d skipped.", - tag, type); - } -} - -#undef CopyField4 -#undef CopyField3 -#undef CopyField2 -#undef CopyField - -static struct cpTag { - uint16 tag; - uint16 count; - TIFFDataType type; -} tags[] = { - { TIFFTAG_IMAGEWIDTH, 1, TIFF_LONG }, - { TIFFTAG_IMAGELENGTH, 1, TIFF_LONG }, - { TIFFTAG_BITSPERSAMPLE, 1, TIFF_SHORT }, - { TIFFTAG_COMPRESSION, 1, TIFF_SHORT }, - { TIFFTAG_FILLORDER, 1, TIFF_SHORT }, - { TIFFTAG_SAMPLESPERPIXEL, 1, TIFF_SHORT }, - { TIFFTAG_ROWSPERSTRIP, 1, TIFF_LONG }, - { TIFFTAG_PLANARCONFIG, 1, TIFF_SHORT }, - { TIFFTAG_GROUP3OPTIONS, 1, TIFF_LONG }, - { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG }, - { TIFFTAG_PHOTOMETRIC, 1, TIFF_SHORT }, - { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT }, - { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII }, - { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII }, - { TIFFTAG_MAKE, 1, TIFF_ASCII }, - { TIFFTAG_MODEL, 1, TIFF_ASCII }, - { TIFFTAG_ORIENTATION, 1, TIFF_SHORT }, - { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_PAGENAME, 1, TIFF_ASCII }, - { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG }, - { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT }, - { TIFFTAG_PAGENUMBER, 2, TIFF_SHORT }, - { TIFFTAG_SOFTWARE, 1, TIFF_ASCII }, - { TIFFTAG_DATETIME, 1, TIFF_ASCII }, - { TIFFTAG_ARTIST, 1, TIFF_ASCII }, - { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII }, - { TIFFTAG_WHITEPOINT, 2, TIFF_RATIONAL }, - { TIFFTAG_PRIMARYCHROMATICITIES, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT }, - { TIFFTAG_BADFAXLINES, 1, TIFF_LONG }, - { TIFFTAG_CLEANFAXDATA, 1, TIFF_SHORT }, - { TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG }, - { TIFFTAG_INKSET, 1, TIFF_SHORT }, - /*{ TIFFTAG_INKNAMES, 1, TIFF_ASCII },*/ /* Needs much more complicated logic. See tiffcp */ - { TIFFTAG_DOTRANGE, 2, TIFF_SHORT }, - { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII }, - { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT }, - { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT }, - { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT }, - { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT }, -}; -#define NTAGS (sizeof (tags) / sizeof (tags[0])) - -static void -cpTags(TIFF* in, TIFF* out) -{ - struct cpTag *p; - for (p = tags; p < &tags[NTAGS]; p++) - { - /* Horrible: but TIFFGetField() expects 2 arguments to be passed */ - /* if we request a tag that is defined in a codec, but that codec */ - /* isn't used */ - if( p->tag == TIFFTAG_GROUP3OPTIONS ) - { - uint16 compression; - if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) || - compression != COMPRESSION_CCITTFAX3 ) - continue; - } - if( p->tag == TIFFTAG_GROUP4OPTIONS ) - { - uint16 compression; - if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) || - compression != COMPRESSION_CCITTFAX4 ) - continue; - } - cpTag(in, out, p->tag, p->count, p->type); - } -} -#undef NTAGS - -static int -cpStrips(TIFF* in, TIFF* out) -{ - tsize_t bufsize = TIFFStripSize(in); - unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize); - - if (buf) { - tstrip_t s, ns = TIFFNumberOfStrips(in); - uint64 *bytecounts; - - TIFFGetField(in, TIFFTAG_STRIPBYTECOUNTS, &bytecounts); - for (s = 0; s < ns; s++) { - if (bytecounts[s] > (uint64) bufsize) { - buf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[s]); - if (!buf) - goto bad; - bufsize = (tmsize_t)bytecounts[s]; - } - if (TIFFReadRawStrip(in, s, buf, (tmsize_t)bytecounts[s]) < 0 || - TIFFWriteRawStrip(out, s, buf, (tmsize_t)bytecounts[s]) < 0) { - _TIFFfree(buf); - return 0; - } - } - _TIFFfree(buf); - return 1; - } - -bad: - TIFFError(TIFFFileName(in), - "Can't allocate space for strip buffer."); - return 0; -} - -static int -cpTiles(TIFF* in, TIFF* out) -{ - tsize_t bufsize = TIFFTileSize(in); - unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize); - - if (buf) { - ttile_t t, nt = TIFFNumberOfTiles(in); - uint64 *bytecounts; - - TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts); - for (t = 0; t < nt; t++) { - if (bytecounts[t] > (uint64) bufsize) { - buf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[t]); - if (!buf) - goto bad; - bufsize = (tmsize_t)bytecounts[t]; - } - if (TIFFReadRawTile(in, t, buf, (tmsize_t)bytecounts[t]) < 0 || - TIFFWriteRawTile(out, t, buf, (tmsize_t)bytecounts[t]) < 0) { - _TIFFfree(buf); - return 0; - } - } - _TIFFfree(buf); - return 1; - } - -bad: - TIFFError(TIFFFileName(in), - "Can't allocate space for tile buffer."); - return (0); -} - -static int -cpIFD(TIFF* in, TIFF* out) -{ - cpTags(in, out); - if (TIFFIsTiled(in)) { - if (!cpTiles(in, out)) - return (0); - } else { - if (!cpStrips(in, out)) - return (0); - } - return (1); -} - -static uint16 photometric; /* current photometric of raster */ -static uint16 filterWidth; /* filter width in pixels */ -static uint32 stepSrcWidth; /* src image stepping width */ -static uint32 stepDstWidth; /* dest stepping width */ -static uint8* src0; /* horizontal bit stepping (start) */ -static uint8* src1; /* horizontal bit stepping (middle) */ -static uint8* src2; /* horizontal bit stepping (end) */ -static uint32* rowoff; /* row offset for stepping */ -static uint8 cmap[256]; /* colormap indexes */ -static uint8 bits[256]; /* count of bits set */ - -static void -setupBitsTables() -{ - int i; - for (i = 0; i < 256; i++) { - int n = 0; - if (i&0x01) n++; - if (i&0x02) n++; - if (i&0x04) n++; - if (i&0x08) n++; - if (i&0x10) n++; - if (i&0x20) n++; - if (i&0x40) n++; - if (i&0x80) n++; - bits[i] = n; - } -} - -static int clamp(float v, int low, int high) - { return (v < low ? low : v > high ? high : (int)v); } - -#ifndef M_E -#define M_E 2.7182818284590452354 -#endif - -static void -expFill(float pct[], uint32 p, uint32 n) -{ - uint32 i; - uint32 c = (p * n) / 100; - for (i = 1; i < c; i++) - pct[i] = (float) (1-exp(i/((double)(n-1)))/ M_E); - for (; i < n; i++) - pct[i] = 0.; -} - -static void -setupCmap() -{ - float pct[256]; /* known to be large enough */ - uint32 i; - pct[0] = 1; /* force white */ - switch (contrast) { - case EXP50: expFill(pct, 50, 256); break; - case EXP60: expFill(pct, 60, 256); break; - case EXP70: expFill(pct, 70, 256); break; - case EXP80: expFill(pct, 80, 256); break; - case EXP90: expFill(pct, 90, 256); break; - case EXP: expFill(pct, 100, 256); break; - case LINEAR: - for (i = 1; i < 256; i++) - pct[i] = 1-((float)i)/(256-1); - break; - } - switch (photometric) { - case PHOTOMETRIC_MINISWHITE: - for (i = 0; i < 256; i++) - cmap[i] = clamp(255*pct[(256-1)-i], 0, 255); - break; - case PHOTOMETRIC_MINISBLACK: - for (i = 0; i < 256; i++) - cmap[i] = clamp(255*pct[i], 0, 255); - break; - } -} - -static void -initScale() -{ - src0 = (uint8*) _TIFFmalloc(sizeof (uint8) * tnw); - src1 = (uint8*) _TIFFmalloc(sizeof (uint8) * tnw); - src2 = (uint8*) _TIFFmalloc(sizeof (uint8) * tnw); - rowoff = (uint32*) _TIFFmalloc(sizeof (uint32) * tnw); - filterWidth = 0; - stepDstWidth = stepSrcWidth = 0; - setupBitsTables(); -} - -/* - * Calculate the horizontal accumulation parameteres - * according to the widths of the src and dst images. - */ -static void -setupStepTables(uint32 sw) -{ - if (stepSrcWidth != sw || stepDstWidth != tnw) { - int step = sw; - int limit = tnw; - int err = 0; - uint32 sx = 0; - uint32 x; - int fw; - uint8 b; - for (x = 0; x < tnw; x++) { - uint32 sx0 = sx; - err += step; - while (err >= limit) { - err -= limit; - sx++; - } - rowoff[x] = sx0 >> 3; - fw = sx - sx0; /* width */ - b = (fw < 8) ? 0xff<<(8-fw) : 0xff; - src0[x] = b >> (sx0&7); - fw -= 8 - (sx0&7); - if (fw < 0) - fw = 0; - src1[x] = fw >> 3; - fw -= (fw>>3)<<3; - src2[x] = 0xff << (8-fw); - } - stepSrcWidth = sw; - stepDstWidth = tnw; - } -} - -static void -setrow(uint8* row, uint32 nrows, const uint8* rows[]) -{ - uint32 x; - uint32 area = nrows * filterWidth; - for (x = 0; x < tnw; x++) { - uint32 mask0 = src0[x]; - uint32 fw = src1[x]; - uint32 mask1 = src1[x]; - uint32 off = rowoff[x]; - uint32 acc = 0; - uint32 y, i; - for (y = 0; y < nrows; y++) { - const uint8* src = rows[y] + off; - acc += bits[*src++ & mask0]; - switch (fw) { - default: - for (i = fw; i > 8; i--) - acc += bits[*src++]; - /* fall thru... */ - case 8: acc += bits[*src++]; - case 7: acc += bits[*src++]; - case 6: acc += bits[*src++]; - case 5: acc += bits[*src++]; - case 4: acc += bits[*src++]; - case 3: acc += bits[*src++]; - case 2: acc += bits[*src++]; - case 1: acc += bits[*src++]; - case 0: break; - } - acc += bits[*src & mask1]; - } - *row++ = cmap[(255*acc)/area]; - } -} - -/* - * Install the specified image. The - * image is resized to fit the display page using - * a box filter. The resultant pixels are mapped - * with a user-selectable contrast curve. - */ -static void -setImage1(const uint8* br, uint32 rw, uint32 rh) -{ - int step = rh; - int limit = tnh; - int err = 0; - int bpr = TIFFhowmany8(rw); - int sy = 0; - uint8* row = thumbnail; - uint32 dy; - for (dy = 0; dy < tnh; dy++) { - const uint8* rows[256]; - uint32 nrows = 1; - fprintf(stderr, "bpr=%d, sy=%d, bpr*sy=%d\n", bpr, sy, bpr*sy); - rows[0] = br + bpr*sy; - err += step; - while (err >= limit) { - err -= limit; - sy++; - if (err >= limit) - { - /* We should perhaps error loudly, but I can't make sense of that */ - /* code... */ - if( nrows == 256 ) - break; - rows[nrows++] = br + bpr*sy; - } - } - setrow(row, nrows, rows); - row += tnw; - } -} - -static void -setImage(const uint8* br, uint32 rw, uint32 rh) -{ - filterWidth = (uint16) ceil((double) rw / (double) tnw); - setupStepTables(rw); - setImage1(br, rw, rh); -} - -static int -generateThumbnail(TIFF* in, TIFF* out) -{ - unsigned char* raster; - unsigned char* rp; - uint32 sw, sh, rps; - uint16 bps, spp; - tsize_t rowsize, rastersize; - tstrip_t s, ns = TIFFNumberOfStrips(in); - toff_t diroff[1]; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &sw); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &sh); - TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps); - TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp); - TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps); - if (spp != 1 || bps != 1) - return 0; - rowsize = TIFFScanlineSize(in); - rastersize = sh * rowsize; - fprintf(stderr, "rastersize=%u\n", (unsigned int)rastersize); - /* +3 : add a few guard bytes since setrow() can read a bit */ - /* outside buffer */ - raster = (unsigned char*)_TIFFmalloc(rastersize+3); - if (!raster) { - TIFFError(TIFFFileName(in), - "Can't allocate space for raster buffer."); - return 0; - } - raster[rastersize] = 0; - raster[rastersize+1] = 0; - raster[rastersize+2] = 0; - rp = raster; - for (s = 0; s < ns; s++) { - (void) TIFFReadEncodedStrip(in, s, rp, -1); - rp += rps * rowsize; - } - TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric); - setupCmap(); - setImage(raster, sw, sh); - _TIFFfree(raster); - - TIFFSetField(out, TIFFTAG_SUBFILETYPE, FILETYPE_REDUCEDIMAGE); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, (uint32) tnw); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, (uint32) tnh); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, (uint16) 8); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, (uint16) 1); - TIFFSetField(out, TIFFTAG_COMPRESSION, COMPRESSION_PACKBITS); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - cpTag(in, out, TIFFTAG_SOFTWARE, (uint16) -1, TIFF_ASCII); - cpTag(in, out, TIFFTAG_IMAGEDESCRIPTION, (uint16) -1, TIFF_ASCII); - cpTag(in, out, TIFFTAG_DATETIME, (uint16) -1, TIFF_ASCII); - cpTag(in, out, TIFFTAG_HOSTCOMPUTER, (uint16) -1, TIFF_ASCII); - diroff[0] = 0UL; - TIFFSetField(out, TIFFTAG_SUBIFD, 1, diroff); - return (TIFFWriteEncodedStrip(out, 0, thumbnail, tnw*tnh) != -1 && - TIFFWriteDirectory(out) != -1); -} - -char* stuff[] = { -"usage: thumbnail [options] input.tif output.tif", -"where options are:", -" -h # specify thumbnail image height (default is 274)", -" -w # specify thumbnail image width (default is 216)", -"", -" -c linear use linear contrast curve", -" -c exp50 use 50% exponential contrast curve", -" -c exp60 use 60% exponential contrast curve", -" -c exp70 use 70% exponential contrast curve", -" -c exp80 use 80% exponential contrast curve", -" -c exp90 use 90% exponential contrast curve", -" -c exp use pure exponential contrast curve", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiff2bw.c b/tiff/tools/tiff2bw.c deleted file mode 100755 index 6bdf6a2..0000000 --- a/tiff/tools/tiff2bw.c +++ /dev/null @@ -1,476 +0,0 @@ -/* $Id: tiff2bw.c,v 1.17 2014-12-21 20:58:30 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#define streq(a,b) (strcmp((a),(b)) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -/* x% weighting -> fraction of full color */ -#define PCT(x) (((x)*255+127)/100) -int RED = PCT(30); /* 30% */ -int GREEN = PCT(59); /* 59% */ -int BLUE = PCT(11); /* 11% */ - -static void usage(void); -static int processCompressOptions(char*); - -static void -compresscontig(unsigned char* out, unsigned char* rgb, uint32 n) -{ - register int v, red = RED, green = GREEN, blue = BLUE; - - while (n-- > 0) { - v = red*(*rgb++); - v += green*(*rgb++); - v += blue*(*rgb++); - *out++ = v>>8; - } -} - -static void -compresssep(unsigned char* out, - unsigned char* r, unsigned char* g, unsigned char* b, uint32 n) -{ - register uint32 red = RED, green = GREEN, blue = BLUE; - - while (n-- > 0) - *out++ = (unsigned char) - ((red*(*r++) + green*(*g++) + blue*(*b++)) >> 8); -} - -static int -checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b) -{ - while (n-- > 0) - if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) - return (16); - TIFFWarning(TIFFFileName(tif), "Assuming 8-bit colormap"); - return (8); -} - -static void -compresspalette(unsigned char* out, unsigned char* data, uint32 n, uint16* rmap, uint16* gmap, uint16* bmap) -{ - register int v, red = RED, green = GREEN, blue = BLUE; - - while (n-- > 0) { - unsigned int ix = *data++; - v = red*rmap[ix]; - v += green*gmap[ix]; - v += blue*bmap[ix]; - *out++ = v>>8; - } -} - -static uint16 compression = (uint16) -1; -static uint16 predictor = 0; -static int jpegcolormode = JPEGCOLORMODE_RGB; -static int quality = 75; /* JPEG quality */ - -static void cpTags(TIFF* in, TIFF* out); - -int -main(int argc, char* argv[]) -{ - uint32 rowsperstrip = (uint32) -1; - TIFF *in, *out; - uint32 w, h; - uint16 samplesperpixel; - uint16 bitspersample; - uint16 config; - uint16 photometric; - uint16* red; - uint16* green; - uint16* blue; - tsize_t rowsize; - register uint32 row; - register tsample_t s; - unsigned char *inbuf, *outbuf; - char thing[1024]; - int c; - extern int optind; - extern char *optarg; - - while ((c = getopt(argc, argv, "c:r:R:G:B:")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case 'R': - RED = PCT(atoi(optarg)); - break; - case 'G': - GREEN = PCT(atoi(optarg)); - break; - case 'B': - BLUE = PCT(atoi(optarg)); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind < 2) - usage(); - in = TIFFOpen(argv[optind], "r"); - if (in == NULL) - return (-1); - photometric = 0; - TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric); - if (photometric != PHOTOMETRIC_RGB && photometric != PHOTOMETRIC_PALETTE ) { - fprintf(stderr, - "%s: Bad photometric; can only handle RGB and Palette images.\n", - argv[optind]); - return (-1); - } - TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - if (samplesperpixel != 1 && samplesperpixel != 3) { - fprintf(stderr, "%s: Bad samples/pixel %u.\n", - argv[optind], samplesperpixel); - return (-1); - } - if( photometric == PHOTOMETRIC_RGB && samplesperpixel != 3) { - fprintf(stderr, "%s: Bad samples/pixel %u for PHOTOMETRIC_RGB.\n", - argv[optind], samplesperpixel); - return (-1); - } - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample); - if (bitspersample != 8) { - fprintf(stderr, - " %s: Sorry, only handle 8-bit samples.\n", argv[optind]); - return (-1); - } - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &w); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(in, TIFFTAG_PLANARCONFIG, &config); - - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return (-1); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, w); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, h); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - cpTags(in, out); - if (compression != (uint16) -1) { - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_JPEG: - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - } - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK); - snprintf(thing, sizeof(thing), "B&W version of %s", argv[optind]); - TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing); - TIFFSetField(out, TIFFTAG_SOFTWARE, "tiff2bw"); - outbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out)); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - -#define pack(a,b) ((a)<<8 | (b)) - switch (pack(photometric, config)) { - case pack(PHOTOMETRIC_PALETTE, PLANARCONFIG_CONTIG): - case pack(PHOTOMETRIC_PALETTE, PLANARCONFIG_SEPARATE): - TIFFGetField(in, TIFFTAG_COLORMAP, &red, &green, &blue); - /* - * Convert 16-bit colormap to 8-bit (unless it looks - * like an old-style 8-bit colormap). - */ - if (checkcmap(in, 1<= 0; i--) { - red[i] = CVT(red[i]); - green[i] = CVT(green[i]); - blue[i] = CVT(blue[i]); - } -#undef CVT - } - inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - for (row = 0; row < h; row++) { - if (TIFFReadScanline(in, inbuf, row, 0) < 0) - break; - compresspalette(outbuf, inbuf, w, red, green, blue); - if (TIFFWriteScanline(out, outbuf, row, 0) < 0) - break; - } - break; - case pack(PHOTOMETRIC_RGB, PLANARCONFIG_CONTIG): - inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - for (row = 0; row < h; row++) { - if (TIFFReadScanline(in, inbuf, row, 0) < 0) - break; - compresscontig(outbuf, inbuf, w); - if (TIFFWriteScanline(out, outbuf, row, 0) < 0) - break; - } - break; - case pack(PHOTOMETRIC_RGB, PLANARCONFIG_SEPARATE): - rowsize = TIFFScanlineSize(in); - inbuf = (unsigned char *)_TIFFmalloc(3*rowsize); - for (row = 0; row < h; row++) { - for (s = 0; s < 3; s++) - if (TIFFReadScanline(in, - inbuf+s*rowsize, row, s) < 0) - return (-1); - compresssep(outbuf, - inbuf, inbuf+rowsize, inbuf+2*rowsize, w); - if (TIFFWriteScanline(out, outbuf, row, 0) < 0) - break; - } - break; - } -#undef pack - TIFFClose(out); - return (0); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - compression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) -#define CopyField4(tag, v1, v2, v3, v4) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4) - -static void -cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type) -{ - switch (type) { - case TIFF_SHORT: - if (count == 1) { - uint16 shortv; - CopyField(tag, shortv); - } else if (count == 2) { - uint16 shortv1, shortv2; - CopyField2(tag, shortv1, shortv2); - } else if (count == 4) { - uint16 *tr, *tg, *tb, *ta; - CopyField4(tag, tr, tg, tb, ta); - } else if (count == (uint16) -1) { - uint16 shortv1; - uint16* shortav; - CopyField2(tag, shortv1, shortav); - } - break; - case TIFF_LONG: - { uint32 longv; - CopyField(tag, longv); - } - break; - case TIFF_RATIONAL: - if (count == 1) { - float floatv; - CopyField(tag, floatv); - } else if (count == (uint16) -1) { - float* floatav; - CopyField(tag, floatav); - } - break; - case TIFF_ASCII: - { char* stringv; - CopyField(tag, stringv); - } - break; - case TIFF_DOUBLE: - if (count == 1) { - double doublev; - CopyField(tag, doublev); - } else if (count == (uint16) -1) { - double* doubleav; - CopyField(tag, doubleav); - } - break; - default: - TIFFError(TIFFFileName(in), - "Data type %d is not supported, tag %d skipped.", - tag, type); - } -} - -#undef CopyField4 -#undef CopyField3 -#undef CopyField2 -#undef CopyField - -static struct cpTag { - uint16 tag; - uint16 count; - TIFFDataType type; -} tags[] = { - { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG }, - { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT }, - { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII }, - { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII }, - { TIFFTAG_MAKE, 1, TIFF_ASCII }, - { TIFFTAG_MODEL, 1, TIFF_ASCII }, - { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_PAGENAME, 1, TIFF_ASCII }, - { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT }, - { TIFFTAG_SOFTWARE, 1, TIFF_ASCII }, - { TIFFTAG_DATETIME, 1, TIFF_ASCII }, - { TIFFTAG_ARTIST, 1, TIFF_ASCII }, - { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII }, - { TIFFTAG_WHITEPOINT, 2, TIFF_RATIONAL }, - { TIFFTAG_PRIMARYCHROMATICITIES,(uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT }, - { TIFFTAG_INKSET, 1, TIFF_SHORT }, - { TIFFTAG_DOTRANGE, 2, TIFF_SHORT }, - { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII }, - { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT }, - { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT }, - { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT }, - { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT }, - { TIFFTAG_SMINSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_SMAXSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_STONITS, 1, TIFF_DOUBLE }, -}; -#define NTAGS (sizeof (tags) / sizeof (tags[0])) - -static void -cpTags(TIFF* in, TIFF* out) -{ - struct cpTag *p; - for (p = tags; p < &tags[NTAGS]; p++) - cpTag(in, out, p->tag, p->count, p->type); -} -#undef NTAGS - -char* stuff[] = { -"usage: tiff2bw [options] input.tif output.tif", -"where options are:", -" -R % use #% from red channel", -" -G % use #% from green channel", -" -B % use #% from blue channel", -"", -" -r # make each strip have no more than # rows", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding", -" -c g3[:opts] compress output with CCITT Group 3 encoding", -" -c g4 compress output with CCITT Group 4 encoding", -" -c none use no compression algorithm on output", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiff2pdf.c b/tiff/tools/tiff2pdf.c deleted file mode 100755 index 3761d38..0000000 --- a/tiff/tools/tiff2pdf.c +++ /dev/null @@ -1,5467 +0,0 @@ -/* $Id: tiff2pdf.c,v 1.83 2015-01-22 09:58:49 erouault Exp $ - * - * tiff2pdf - converts a TIFF image to a PDF document - * - * Copyright (c) 2003 Ross Finlayson - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the name of - * Ross Finlayson may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Ross Finlayson. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL ROSS FINLAYSON BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include -#include -#include -#include - -#if HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffiop.h" -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#ifndef EXIT_SUCCESS -# define EXIT_SUCCESS 0 -#endif -#ifndef EXIT_FAILURE -# define EXIT_FAILURE 1 -#endif - -#define TIFF2PDF_MODULE "tiff2pdf" - -#define PS_UNIT_SIZE 72.0F - -/* This type is of PDF color spaces. */ -typedef enum { - T2P_CS_BILEVEL = 0x01, /* Bilevel, black and white */ - T2P_CS_GRAY = 0x02, /* Single channel */ - T2P_CS_RGB = 0x04, /* Three channel tristimulus RGB */ - T2P_CS_CMYK = 0x08, /* Four channel CMYK print inkset */ - T2P_CS_LAB = 0x10, /* Three channel L*a*b* color space */ - T2P_CS_PALETTE = 0x1000,/* One of the above with a color map */ - T2P_CS_CALGRAY = 0x20, /* Calibrated single channel */ - T2P_CS_CALRGB = 0x40, /* Calibrated three channel tristimulus RGB */ - T2P_CS_ICCBASED = 0x80 /* ICC profile color specification */ -} t2p_cs_t; - -/* This type is of PDF compression types. */ -typedef enum{ - T2P_COMPRESS_NONE=0x00 -#ifdef CCITT_SUPPORT - , T2P_COMPRESS_G4=0x01 -#endif -#if defined(JPEG_SUPPORT) || defined(OJPEG_SUPPORT) - , T2P_COMPRESS_JPEG=0x02 -#endif -#ifdef ZIP_SUPPORT - , T2P_COMPRESS_ZIP=0x04 -#endif -} t2p_compress_t; - -/* This type is whether TIFF image data can be used in PDF without transcoding. */ -typedef enum{ - T2P_TRANSCODE_RAW=0x01, /* The raw data from the input can be used without recompressing */ - T2P_TRANSCODE_ENCODE=0x02 /* The data from the input is perhaps unencoded and reencoded */ -} t2p_transcode_t; - -/* This type is of information about the data samples of the input image. */ -typedef enum{ - T2P_SAMPLE_NOTHING=0x0000, /* The unencoded samples are normal for the output colorspace */ - T2P_SAMPLE_ABGR_TO_RGB=0x0001, /* The unencoded samples are the result of ReadRGBAImage */ - T2P_SAMPLE_RGBA_TO_RGB=0x0002, /* The unencoded samples are contiguous RGBA */ - T2P_SAMPLE_RGBAA_TO_RGB=0x0004, /* The unencoded samples are RGBA with premultiplied alpha */ - T2P_SAMPLE_YCBCR_TO_RGB=0x0008, - T2P_SAMPLE_YCBCR_TO_LAB=0x0010, - T2P_SAMPLE_REALIZE_PALETTE=0x0020, /* The unencoded samples are indexes into the color map */ - T2P_SAMPLE_SIGNED_TO_UNSIGNED=0x0040, /* The unencoded samples are signed instead of unsignd */ - T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED=0x0040, /* The L*a*b* samples have a* and b* signed */ - T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG=0x0100 /* The unencoded samples are separate instead of contiguous */ -} t2p_sample_t; - -/* This type is of error status of the T2P struct. */ -typedef enum{ - T2P_ERR_OK = 0, /* This is the value of t2p->t2p_error when there is no error */ - T2P_ERR_ERROR = 1 /* This is the value of t2p->t2p_error when there was an error */ -} t2p_err_t; - -/* This struct defines a logical page of a TIFF. */ -typedef struct { - tdir_t page_directory; - uint32 page_number; - ttile_t page_tilecount; - uint32 page_extra; -} T2P_PAGE; - -/* This struct defines a PDF rectangle's coordinates. */ -typedef struct { - float x1; - float y1; - float x2; - float y2; - float mat[9]; -} T2P_BOX; - -/* This struct defines a tile of a PDF. */ -typedef struct { - T2P_BOX tile_box; -} T2P_TILE; - -/* This struct defines information about the tiles on a PDF page. */ -typedef struct { - ttile_t tiles_tilecount; - uint32 tiles_tilewidth; - uint32 tiles_tilelength; - uint32 tiles_tilecountx; - uint32 tiles_tilecounty; - uint32 tiles_edgetilewidth; - uint32 tiles_edgetilelength; - T2P_TILE* tiles_tiles; -} T2P_TILES; - -/* This struct is the context of a function to generate PDF from a TIFF. */ -typedef struct { - t2p_err_t t2p_error; - T2P_PAGE* tiff_pages; - T2P_TILES* tiff_tiles; - tdir_t tiff_pagecount; - uint16 tiff_compression; - uint16 tiff_photometric; - uint16 tiff_fillorder; - uint16 tiff_bitspersample; - uint16 tiff_samplesperpixel; - uint16 tiff_planar; - uint32 tiff_width; - uint32 tiff_length; - float tiff_xres; - float tiff_yres; - uint16 tiff_orientation; - toff_t tiff_dataoffset; - tsize_t tiff_datasize; - uint16 tiff_resunit; - uint16 pdf_centimeters; - uint16 pdf_overrideres; - uint16 pdf_overridepagesize; - float pdf_defaultxres; - float pdf_defaultyres; - float pdf_xres; - float pdf_yres; - float pdf_defaultpagewidth; - float pdf_defaultpagelength; - float pdf_pagewidth; - float pdf_pagelength; - float pdf_imagewidth; - float pdf_imagelength; - int pdf_image_fillpage; /* 0 (default: no scaling, 1:scale imagesize to pagesize */ - T2P_BOX pdf_mediabox; - T2P_BOX pdf_imagebox; - uint16 pdf_majorversion; - uint16 pdf_minorversion; - uint32 pdf_catalog; - uint32 pdf_pages; - uint32 pdf_info; - uint32 pdf_palettecs; - uint16 pdf_fitwindow; - uint32 pdf_startxref; -#define TIFF2PDF_FILEID_SIZE 33 - char pdf_fileid[TIFF2PDF_FILEID_SIZE]; -#define TIFF2PDF_DATETIME_SIZE 17 - char pdf_datetime[TIFF2PDF_DATETIME_SIZE]; -#define TIFF2PDF_CREATOR_SIZE 512 - char pdf_creator[TIFF2PDF_CREATOR_SIZE]; -#define TIFF2PDF_AUTHOR_SIZE 512 - char pdf_author[TIFF2PDF_AUTHOR_SIZE]; -#define TIFF2PDF_TITLE_SIZE 512 - char pdf_title[TIFF2PDF_TITLE_SIZE]; -#define TIFF2PDF_SUBJECT_SIZE 512 - char pdf_subject[TIFF2PDF_SUBJECT_SIZE]; -#define TIFF2PDF_KEYWORDS_SIZE 512 - char pdf_keywords[TIFF2PDF_KEYWORDS_SIZE]; - t2p_cs_t pdf_colorspace; - uint16 pdf_colorspace_invert; - uint16 pdf_switchdecode; - uint16 pdf_palettesize; - unsigned char* pdf_palette; - int pdf_labrange[4]; - t2p_compress_t pdf_defaultcompression; - uint16 pdf_defaultcompressionquality; - t2p_compress_t pdf_compression; - uint16 pdf_compressionquality; - uint16 pdf_nopassthrough; - t2p_transcode_t pdf_transcode; - t2p_sample_t pdf_sample; - uint32* pdf_xrefoffsets; - uint32 pdf_xrefcount; - tdir_t pdf_page; -#ifdef OJPEG_SUPPORT - tdata_t pdf_ojpegdata; - uint32 pdf_ojpegdatalength; - uint32 pdf_ojpegiflength; -#endif - float tiff_whitechromaticities[2]; - float tiff_primarychromaticities[6]; - float tiff_referenceblackwhite[2]; - float* tiff_transferfunction[3]; - int pdf_image_interpolate; /* 0 (default) : do not interpolate, - 1 : interpolate */ - uint16 tiff_transferfunctioncount; - uint32 pdf_icccs; - uint32 tiff_iccprofilelength; - tdata_t tiff_iccprofile; - - /* fields for custom read/write procedures */ - FILE *outputfile; - int outputdisable; - tsize_t outputwritten; -} T2P; - -/* These functions are called by main. */ - -void tiff2pdf_usage(void); -int tiff2pdf_match_paper_size(float*, float*, char*); - -/* These functions are used to generate a PDF from a TIFF. */ - -#ifdef __cplusplus -extern "C" { -#endif - -T2P* t2p_init(void); -void t2p_validate(T2P*); -tsize_t t2p_write_pdf(T2P*, TIFF*, TIFF*); -void t2p_free(T2P*); - -#ifdef __cplusplus -} -#endif - -void t2p_read_tiff_init(T2P*, TIFF*); -int t2p_cmp_t2p_page(const void*, const void*); -void t2p_read_tiff_data(T2P*, TIFF*); -void t2p_read_tiff_size(T2P*, TIFF*); -void t2p_read_tiff_size_tile(T2P*, TIFF*, ttile_t); -int t2p_tile_is_right_edge(T2P_TILES, ttile_t); -int t2p_tile_is_bottom_edge(T2P_TILES, ttile_t); -int t2p_tile_is_edge(T2P_TILES, ttile_t); -int t2p_tile_is_corner_edge(T2P_TILES, ttile_t); -tsize_t t2p_readwrite_pdf_image(T2P*, TIFF*, TIFF*); -tsize_t t2p_readwrite_pdf_image_tile(T2P*, TIFF*, TIFF*, ttile_t); -#ifdef OJPEG_SUPPORT -int t2p_process_ojpeg_tables(T2P*, TIFF*); -#endif -#ifdef JPEG_SUPPORT -int t2p_process_jpeg_strip(unsigned char*, tsize_t*, unsigned char*, tsize_t*, tstrip_t, uint32); -#endif -void t2p_tile_collapse_left(tdata_t, tsize_t, uint32, uint32, uint32); -void t2p_write_advance_directory(T2P*, TIFF*); -tsize_t t2p_sample_planar_separate_to_contig(T2P*, unsigned char*, unsigned char*, tsize_t); -tsize_t t2p_sample_realize_palette(T2P*, unsigned char*); -tsize_t t2p_sample_abgr_to_rgb(tdata_t, uint32); -tsize_t t2p_sample_rgba_to_rgb(tdata_t, uint32); -tsize_t t2p_sample_rgbaa_to_rgb(tdata_t, uint32); -tsize_t t2p_sample_lab_signed_to_unsigned(tdata_t, uint32); -tsize_t t2p_write_pdf_header(T2P*, TIFF*); -tsize_t t2p_write_pdf_obj_start(uint32, TIFF*); -tsize_t t2p_write_pdf_obj_end(TIFF*); -tsize_t t2p_write_pdf_name(unsigned char*, TIFF*); -tsize_t t2p_write_pdf_string(char*, TIFF*); -tsize_t t2p_write_pdf_stream(tdata_t, tsize_t, TIFF*); -tsize_t t2p_write_pdf_stream_start(TIFF*); -tsize_t t2p_write_pdf_stream_end(TIFF*); -tsize_t t2p_write_pdf_stream_dict(tsize_t, uint32, TIFF*); -tsize_t t2p_write_pdf_stream_dict_start(TIFF*); -tsize_t t2p_write_pdf_stream_dict_end(TIFF*); -tsize_t t2p_write_pdf_stream_length(tsize_t, TIFF*); -tsize_t t2p_write_pdf_catalog(T2P*, TIFF*); -tsize_t t2p_write_pdf_info(T2P*, TIFF*, TIFF*); -void t2p_pdf_currenttime(T2P*); -void t2p_pdf_tifftime(T2P*, TIFF*); -tsize_t t2p_write_pdf_pages(T2P*, TIFF*); -tsize_t t2p_write_pdf_page(uint32, T2P*, TIFF*); -void t2p_compose_pdf_page(T2P*); -void t2p_compose_pdf_page_orient(T2P_BOX*, uint16); -void t2p_compose_pdf_page_orient_flip(T2P_BOX*, uint16); -tsize_t t2p_write_pdf_page_content(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_stream_dict(ttile_t, T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_cs(T2P*, TIFF*); -tsize_t t2p_write_pdf_transfer(T2P*, TIFF*); -tsize_t t2p_write_pdf_transfer_dict(T2P*, TIFF*, uint16); -tsize_t t2p_write_pdf_transfer_stream(T2P*, TIFF*, uint16); -tsize_t t2p_write_pdf_xobject_calcs(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_icccs(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_icccs_dict(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_icccs_stream(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_cs_stream(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_decode(T2P*, TIFF*); -tsize_t t2p_write_pdf_xobject_stream_filter(ttile_t, T2P*, TIFF*); -tsize_t t2p_write_pdf_xreftable(T2P*, TIFF*); -tsize_t t2p_write_pdf_trailer(T2P*, TIFF*); - -static void -t2p_disable(TIFF *tif) -{ - T2P *t2p = (T2P*) TIFFClientdata(tif); - t2p->outputdisable = 1; -} - -static void -t2p_enable(TIFF *tif) -{ - T2P *t2p = (T2P*) TIFFClientdata(tif); - t2p->outputdisable = 0; -} - -/* - * Procs for TIFFClientOpen - */ - -static tmsize_t -t2pReadFile(TIFF *tif, tdata_t data, tmsize_t size) -{ - thandle_t client = TIFFClientdata(tif); - TIFFReadWriteProc proc = TIFFGetReadProc(tif); - if (proc) - return proc(client, data, size); - return -1; -} - -static tmsize_t -t2pWriteFile(TIFF *tif, tdata_t data, tmsize_t size) -{ - thandle_t client = TIFFClientdata(tif); - TIFFReadWriteProc proc = TIFFGetWriteProc(tif); - if (proc) - return proc(client, data, size); - return -1; -} - -static uint64 -t2pSeekFile(TIFF *tif, toff_t offset, int whence) -{ - thandle_t client = TIFFClientdata(tif); - TIFFSeekProc proc = TIFFGetSeekProc(tif); - if (proc) - return proc(client, offset, whence); - return -1; -} - -static tmsize_t -t2p_readproc(thandle_t handle, tdata_t data, tmsize_t size) -{ - (void) handle, (void) data, (void) size; - return -1; -} - -static tmsize_t -t2p_writeproc(thandle_t handle, tdata_t data, tmsize_t size) -{ - T2P *t2p = (T2P*) handle; - if (t2p->outputdisable <= 0 && t2p->outputfile) { - tsize_t written = fwrite(data, 1, size, t2p->outputfile); - t2p->outputwritten += written; - return written; - } - return size; -} - -static uint64 -t2p_seekproc(thandle_t handle, uint64 offset, int whence) -{ - T2P *t2p = (T2P*) handle; - if (t2p->outputdisable <= 0 && t2p->outputfile) - return fseek(t2p->outputfile, (long) offset, whence); - return offset; -} - -static int -t2p_closeproc(thandle_t handle) -{ - T2P *t2p = (T2P*) handle; - return fclose(t2p->outputfile); -} - -static uint64 -t2p_sizeproc(thandle_t handle) -{ - (void) handle; - return -1; -} - -static int -t2p_mapproc(thandle_t handle, void **data, toff_t *offset) -{ - (void) handle, (void) data, (void) offset; - return -1; -} - -static void -t2p_unmapproc(thandle_t handle, void *data, toff_t offset) -{ - (void) handle, (void) data, (void) offset; -} - -static uint64 -checkAdd64(uint64 summand1, uint64 summand2, T2P* t2p) -{ - uint64 bytes = summand1 + summand2; - - if (bytes < summand1) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - bytes = 0; - } - - return bytes; -} - -static uint64 -checkMultiply64(uint64 first, uint64 second, T2P* t2p) -{ - uint64 bytes = first * second; - - if (second && bytes / second != first) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - bytes = 0; - } - - return bytes; -} - -/* - - This is the main function. - - The program converts one TIFF file to one PDF file, including multiple page - TIFF files, tiled TIFF files, black and white. grayscale, and color TIFF - files that contain data of TIFF photometric interpretations of bilevel, - grayscale, RGB, YCbCr, CMYK separation, and ICC L*a*b* as supported by - libtiff and PDF. - - If you have multiple TIFF files to convert into one PDF file then use tiffcp - or other program to concatenate the files into a multiple page TIFF file. - If the input TIFF file is of huge dimensions (greater than 10000 pixels height - or width) convert the input image to a tiled TIFF if it is not already. - - The standard output is standard output. Set the output file name with the - "-o output.pdf" option. - - All black and white files are compressed into a single strip CCITT G4 Fax - compressed PDF, unless tiled, where tiled black and white images are - compressed into tiled CCITT G4 Fax compressed PDF, libtiff CCITT support - is assumed. - - Color and grayscale data can be compressed using either JPEG compression, - ITU-T T.81, or Zip/Deflate LZ77 compression, per PNG 1.2 and RFC 1951. Set - the compression type using the -j or -z options. JPEG compression support - requires that libtiff be configured with JPEG support, and Zip/Deflate - compression support requires that libtiff is configured with Zip support, - in tiffconf.h. Use only one or the other of -j and -z. The -q option - sets the image compression quality, that is 1-100 with libjpeg JPEG - compression and one of 1, 10, 11, 12, 13, 14, or 15 for PNG group compression - predictor methods, add 100, 200, ..., 900 to set zlib compression quality 1-9. - PNG Group differencing predictor methods are not currently implemented. - - If the input TIFF contains single strip CCITT G4 Fax compressed information, - then that is written to the PDF file without transcoding, unless the options - of no compression and no passthrough are set, -d and -n. - - If the input TIFF contains JPEG or single strip Zip/Deflate compressed - information, and they are configured, then that is written to the PDF file - without transcoding, unless the options of no compression and no passthrough - are set. - - The default page size upon which the TIFF image is placed is determined by - the resolution and extent of the image data. Default values for the TIFF - image resolution can be set using the -x and -y options. The page size can - be set using the -p option for paper size, or -w and -l for paper width and - length, then each page of the TIFF image is centered on its page. The - distance unit for default resolution and page width and length can be set - by the -u option, the default unit is inch. - - Various items of the output document information can be set with the -e, -c, - -a, -t, -s, and -k tags. Setting the argument of the option to "" for these - tags causes the relevant document information field to be not written. Some - of the document information values otherwise get their information from the - input TIFF image, the software, author, document name, and image description. - - The output PDF file conforms to the PDF 1.1 specification or PDF 1.2 if using - Zip/Deflate compression. - - The Portable Document Format (PDF) specification is copyrighted by Adobe - Systems, Incorporated. Todos derechos reservados. - - Here is a listing of the usage example and the options to the tiff2pdf - program that is part of the libtiff distribution. Options followed by - a colon have a required argument. - - usage: tiff2pdf [options] input.tif - - options: - -o: output to file name - - -j: compress with JPEG (requires libjpeg configured with libtiff) - -z: compress with Zip/Deflate (requires zlib configured with libtiff) - -q: compression quality - -n: no compressed data passthrough - -d: do not compress (decompress) - -i: invert colors - -u: set distance unit, 'i' for inch, 'm' for centimeter - -x: set x resolution default - -y: set y resolution default - -w: width in units - -l: length in units - -r: 'd' for resolution default, 'o' for resolution override - -p: paper size, eg "letter", "legal", "a4" - -F: make the tiff fill the PDF page - -f: set pdf "fit window" user preference - -b: set PDF "Interpolate" user preference - -e: date, overrides image or current date/time default, YYYYMMDDHHMMSS - -c: creator, overrides image software default - -a: author, overrides image artist default - -t: title, overrides image document name default - -s: subject, overrides image image description default - -k: keywords - - -h: usage - - examples: - - tiff2pdf -o output.pdf input.tiff - - The above example would generate the file output.pdf from input.tiff. - - tiff2pdf input.tiff - - The above example would generate PDF output from input.tiff and write it - to standard output. - - tiff2pdf -j -p letter -o output.pdf input.tiff - - The above example would generate the file output.pdf from input.tiff, - putting the image pages on a letter sized page, compressing the output - with JPEG. - - Please report bugs through: - - http://bugzilla.remotesensing.org/buglist.cgi?product=libtiff - - See also libtiff.3t, tiffcp. - */ - -int main(int argc, char** argv){ - - extern char *optarg; - extern int optind; - const char *outfilename = NULL; - T2P *t2p = NULL; - TIFF *input = NULL, *output = NULL; - int c, ret = EXIT_SUCCESS; - - t2p = t2p_init(); - - if (t2p == NULL){ - TIFFError(TIFF2PDF_MODULE, "Can't initialize context"); - goto fail; - } - - while (argv && - (c = getopt(argc, argv, - "o:q:u:x:y:w:l:r:p:e:c:a:t:s:k:jzndifbhF")) != -1){ - switch (c) { - case 'o': - outfilename = optarg; - break; -#ifdef JPEG_SUPPORT - case 'j': - t2p->pdf_defaultcompression=T2P_COMPRESS_JPEG; - break; -#endif -#ifndef JPEG_SUPPORT - case 'j': - TIFFWarning( - TIFF2PDF_MODULE, - "JPEG support in libtiff required for JPEG compression, ignoring option"); - break; -#endif -#ifdef ZIP_SUPPORT - case 'z': - t2p->pdf_defaultcompression=T2P_COMPRESS_ZIP; - break; -#endif -#ifndef ZIP_SUPPORT - case 'z': - TIFFWarning( - TIFF2PDF_MODULE, - "Zip support in libtiff required for Zip compression, ignoring option"); - break; -#endif - case 'q': - t2p->pdf_defaultcompressionquality=atoi(optarg); - break; - case 'n': - t2p->pdf_nopassthrough=1; - break; - case 'd': - t2p->pdf_defaultcompression=T2P_COMPRESS_NONE; - break; - case 'u': - if(optarg[0]=='m'){ - t2p->pdf_centimeters=1; - } - break; - case 'x': - t2p->pdf_defaultxres = - (float)atof(optarg) / (t2p->pdf_centimeters?2.54F:1.0F); - break; - case 'y': - t2p->pdf_defaultyres = - (float)atof(optarg) / (t2p->pdf_centimeters?2.54F:1.0F); - break; - case 'w': - t2p->pdf_overridepagesize=1; - t2p->pdf_defaultpagewidth = - ((float)atof(optarg) * PS_UNIT_SIZE) / (t2p->pdf_centimeters?2.54F:1.0F); - break; - case 'l': - t2p->pdf_overridepagesize=1; - t2p->pdf_defaultpagelength = - ((float)atof(optarg) * PS_UNIT_SIZE) / (t2p->pdf_centimeters?2.54F:1.0F); - break; - case 'r': - if(optarg[0]=='o'){ - t2p->pdf_overrideres=1; - } - break; - case 'p': - if(tiff2pdf_match_paper_size( - &(t2p->pdf_defaultpagewidth), - &(t2p->pdf_defaultpagelength), - optarg)){ - t2p->pdf_overridepagesize=1; - } else { - TIFFWarning(TIFF2PDF_MODULE, - "Unknown paper size %s, ignoring option", - optarg); - } - break; - case 'i': - t2p->pdf_colorspace_invert=1; - break; - case 'F': - t2p->pdf_image_fillpage = 1; - break; - case 'f': - t2p->pdf_fitwindow=1; - break; - case 'e': - if (strlen(optarg) == 0) { - t2p->pdf_datetime[0] = '\0'; - } else { - t2p->pdf_datetime[0] = 'D'; - t2p->pdf_datetime[1] = ':'; - strncpy(t2p->pdf_datetime + 2, optarg, - sizeof(t2p->pdf_datetime) - 3); - t2p->pdf_datetime[sizeof(t2p->pdf_datetime) - 1] = '\0'; - } - break; - case 'c': - strncpy(t2p->pdf_creator, optarg, sizeof(t2p->pdf_creator) - 1); - t2p->pdf_creator[sizeof(t2p->pdf_creator) - 1] = '\0'; - break; - case 'a': - strncpy(t2p->pdf_author, optarg, sizeof(t2p->pdf_author) - 1); - t2p->pdf_author[sizeof(t2p->pdf_author) - 1] = '\0'; - break; - case 't': - strncpy(t2p->pdf_title, optarg, sizeof(t2p->pdf_title) - 1); - t2p->pdf_title[sizeof(t2p->pdf_title) - 1] = '\0'; - break; - case 's': - strncpy(t2p->pdf_subject, optarg, sizeof(t2p->pdf_subject) - 1); - t2p->pdf_subject[sizeof(t2p->pdf_subject) - 1] = '\0'; - break; - case 'k': - strncpy(t2p->pdf_keywords, optarg, sizeof(t2p->pdf_keywords) - 1); - t2p->pdf_keywords[sizeof(t2p->pdf_keywords) - 1] = '\0'; - break; - case 'b': - t2p->pdf_image_interpolate = 1; - break; - case 'h': - case '?': - tiff2pdf_usage(); - goto success; - break; - } - } - - /* - * Input - */ - if(argc > optind) { - input = TIFFOpen(argv[optind++], "r"); - if (input==NULL) { - TIFFError(TIFF2PDF_MODULE, - "Can't open input file %s for reading", - argv[optind-1]); - goto fail; - } - } else { - TIFFError(TIFF2PDF_MODULE, "No input file specified"); - tiff2pdf_usage(); - goto fail; - } - - if(argc > optind) { - TIFFError(TIFF2PDF_MODULE, - "No support for multiple input files"); - tiff2pdf_usage(); - goto fail; - } - - /* - * Output - */ - t2p->outputdisable = 0; - if (outfilename) { - t2p->outputfile = fopen(outfilename, "wb"); - if (t2p->outputfile == NULL) { - TIFFError(TIFF2PDF_MODULE, - "Can't open output file %s for writing", - outfilename); - goto fail; - } - } else { - outfilename = "-"; - t2p->outputfile = stdout; - } - - output = TIFFClientOpen(outfilename, "w", (thandle_t) t2p, - t2p_readproc, t2p_writeproc, t2p_seekproc, - t2p_closeproc, t2p_sizeproc, - t2p_mapproc, t2p_unmapproc); - if (output == NULL) { - TIFFError(TIFF2PDF_MODULE, - "Can't initialize output descriptor"); - goto fail; - } - - /* - * Validate - */ - t2p_validate(t2p); - t2pSeekFile(output, (toff_t) 0, SEEK_SET); - - /* - * Write - */ - t2p_write_pdf(t2p, input, output); - if (t2p->t2p_error != 0) { - TIFFError(TIFF2PDF_MODULE, - "An error occurred creating output PDF file"); - goto fail; - } - - goto success; -fail: - ret = EXIT_FAILURE; -success: - if(input != NULL) - TIFFClose(input); - if (output != NULL) - TIFFClose(output); - if (t2p != NULL) - t2p_free(t2p); - return ret; - -} - -void tiff2pdf_usage(){ - char* lines[]={ - "usage: tiff2pdf [options] input.tiff", - "options:", - " -o: output to file name", -#ifdef JPEG_SUPPORT - " -j: compress with JPEG", -#endif -#ifdef ZIP_SUPPORT - " -z: compress with Zip/Deflate", -#endif - " -q: compression quality", - " -n: no compressed data passthrough", - " -d: do not compress (decompress)", - " -i: invert colors", - " -u: set distance unit, 'i' for inch, 'm' for centimeter", - " -x: set x resolution default in dots per unit", - " -y: set y resolution default in dots per unit", - " -w: width in units", - " -l: length in units", - " -r: 'd' for resolution default, 'o' for resolution override", - " -p: paper size, eg \"letter\", \"legal\", \"A4\"", - " -F: make the tiff fill the PDF page", - " -f: set PDF \"Fit Window\" user preference", - " -e: date, overrides image or current date/time default, YYYYMMDDHHMMSS", - " -c: sets document creator, overrides image software default", - " -a: sets document author, overrides image artist default", - " -t: sets document title, overrides image document name default", - " -s: sets document subject, overrides image image description default", - " -k: sets document keywords", - " -b: set PDF \"Interpolate\" user preference", - " -h: usage", - NULL - }; - int i=0; - - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i=0;lines[i]!=NULL;i++){ - fprintf(stderr, "%s\n", lines[i]); - } - - return; -} - -int tiff2pdf_match_paper_size(float* width, float* length, char* papersize){ - - size_t i, len; - const char* sizes[]={ - "LETTER", "A4", "LEGAL", - "EXECUTIVE", "LETTER", "LEGAL", "LEDGER", "TABLOID", - "A", "B", "C", "D", "E", "F", "G", "H", "J", "K", - "A10", "A9", "A8", "A7", "A6", "A5", "A4", "A3", "A2", "A1", "A0", - "2A0", "4A0", "2A", "4A", - "B10", "B9", "B8", "B7", "B6", "B5", "B4", "B3", "B2", "B1", "B0", - "JISB10", "JISB9", "JISB8", "JISB7", "JISB6", "JISB5", "JISB4", - "JISB3", "JISB2", "JISB1", "JISB0", - "C10", "C9", "C8", "C7", "C6", "C5", "C4", "C3", "C2", "C1", "C0", - "RA2", "RA1", "RA0", "SRA4", "SRA3", "SRA2", "SRA1", "SRA0", - "A3EXTRA", "A4EXTRA", - "STATEMENT", "FOLIO", "QUARTO", - NULL - } ; - const int widths[]={ - 612, 595, 612, - 522, 612,612,792,792, - 612,792,1224,1584,2448,2016,792,2016,2448,2880, - 74,105,147,210,298,420,595,842,1191,1684,2384,3370,4768,3370,4768, - 88,125,176,249,354,499,709,1001,1417,2004,2835, - 91,128,181,258,363,516,729,1032,1460,2064,2920, - 79,113,162,230,323,459,649,918,1298,1298,2599, - 1219,1729,2438,638,907,1276,1814,2551, - 914,667, - 396, 612, 609, - 0 - }; - const int lengths[]={ - 792,842,1008, - 756,792,1008,1224,1224, - 792,1224,1584,2448,3168,2880,6480,10296,12672,10296, - 105,147,210,298,420,595,842,1191,1684,2384,3370,4768,6741,4768,6741, - 125,176,249,354,499,709,1001,1417,2004,2835,4008, - 128,181,258,363,516,729,1032,1460,2064,2920,4127, - 113,162,230,323,459,649,918,1298,1837,1837,3677, - 1729,2438,3458,907,1276,1814,2551,3628, - 1262,914, - 612, 936, 780, - 0 - }; - - len=strlen(papersize); - for(i=0;ipdf_majorversion=1; - t2p->pdf_minorversion=1; - t2p->pdf_defaultxres=300.0; - t2p->pdf_defaultyres=300.0; - t2p->pdf_defaultpagewidth=612.0; - t2p->pdf_defaultpagelength=792.0; - t2p->pdf_xrefcount=3; /* Catalog, Info, Pages */ - - return(t2p); -} - -/* - * This function frees a T2P context struct pointer and any allocated data fields of it. - */ - -void t2p_free(T2P* t2p) -{ - int i = 0; - - if (t2p != NULL) { - if(t2p->pdf_xrefoffsets != NULL){ - _TIFFfree( (tdata_t) t2p->pdf_xrefoffsets); - } - if(t2p->tiff_pages != NULL){ - _TIFFfree( (tdata_t) t2p->tiff_pages); - } - for(i=0;itiff_pagecount;i++){ - if(t2p->tiff_tiles[i].tiles_tiles != NULL){ - _TIFFfree( (tdata_t) t2p->tiff_tiles[i].tiles_tiles); - } - } - if(t2p->tiff_tiles != NULL){ - _TIFFfree( (tdata_t) t2p->tiff_tiles); - } - if(t2p->pdf_palette != NULL){ - _TIFFfree( (tdata_t) t2p->pdf_palette); - } -#ifdef OJPEG_SUPPORT - if(t2p->pdf_ojpegdata != NULL){ - _TIFFfree( (tdata_t) t2p->pdf_ojpegdata); - } -#endif - _TIFFfree( (tdata_t) t2p ); - } - - return; -} - -/* - This function validates the values of a T2P context struct pointer - before calling t2p_write_pdf with it. -*/ - -void t2p_validate(T2P* t2p){ - -#ifdef JPEG_SUPPORT - if(t2p->pdf_defaultcompression==T2P_COMPRESS_JPEG){ - if(t2p->pdf_defaultcompressionquality>100 || - t2p->pdf_defaultcompressionquality<1){ - t2p->pdf_defaultcompressionquality=0; - } - } -#endif -#ifdef ZIP_SUPPORT - if(t2p->pdf_defaultcompression==T2P_COMPRESS_ZIP){ - uint16 m=t2p->pdf_defaultcompressionquality%100; - if(t2p->pdf_defaultcompressionquality/100 > 9 || - (m>1 && m<10) || m>15){ - t2p->pdf_defaultcompressionquality=0; - } - if(t2p->pdf_defaultcompressionquality%100 !=0){ - t2p->pdf_defaultcompressionquality/=100; - t2p->pdf_defaultcompressionquality*=100; - TIFFError( - TIFF2PDF_MODULE, - "PNG Group predictor differencing not implemented, assuming compression quality %u", - t2p->pdf_defaultcompressionquality); - } - t2p->pdf_defaultcompressionquality%=100; - if(t2p->pdf_minorversion<2){t2p->pdf_minorversion=2;} - } -#endif - (void)0; - - return; -} - - -/* - This function scans the input TIFF file for pages. It attempts - to determine which IFD's of the TIFF file contain image document - pages. For each, it gathers some information that has to do - with the output of the PDF document as a whole. -*/ - -void t2p_read_tiff_init(T2P* t2p, TIFF* input){ - - tdir_t directorycount=0; - tdir_t i=0; - uint16 pagen=0; - uint16 paged=0; - uint16 xuint16=0; - - directorycount=TIFFNumberOfDirectories(input); - t2p->tiff_pages = (T2P_PAGE*) _TIFFmalloc(TIFFSafeMultiply(tmsize_t,directorycount,sizeof(T2P_PAGE))); - if(t2p->tiff_pages==NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for tiff_pages array, %s", - (unsigned long) directorycount * sizeof(T2P_PAGE), - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - _TIFFmemset( t2p->tiff_pages, 0x00, directorycount * sizeof(T2P_PAGE)); - t2p->tiff_tiles = (T2P_TILES*) _TIFFmalloc(TIFFSafeMultiply(tmsize_t,directorycount,sizeof(T2P_TILES))); - if(t2p->tiff_tiles==NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for tiff_tiles array, %s", - (unsigned long) directorycount * sizeof(T2P_TILES), - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - _TIFFmemset( t2p->tiff_tiles, 0x00, directorycount * sizeof(T2P_TILES)); - for(i=0;it2p_error = T2P_ERR_ERROR; - return; - } - if(TIFFGetField(input, TIFFTAG_PAGENUMBER, &pagen, &paged)){ - if((pagen>paged) && (paged != 0)){ - t2p->tiff_pages[t2p->tiff_pagecount].page_number = - paged; - } else { - t2p->tiff_pages[t2p->tiff_pagecount].page_number = - pagen; - } - goto ispage2; - } - if(TIFFGetField(input, TIFFTAG_SUBFILETYPE, &subfiletype)){ - if ( ((subfiletype & FILETYPE_PAGE) != 0) - || (subfiletype == 0)){ - goto ispage; - } else { - goto isnotpage; - } - } - if(TIFFGetField(input, TIFFTAG_OSUBFILETYPE, &subfiletype)){ - if ((subfiletype == OFILETYPE_IMAGE) - || (subfiletype == OFILETYPE_PAGE) - || (subfiletype == 0) ){ - goto ispage; - } else { - goto isnotpage; - } - } - ispage: - t2p->tiff_pages[t2p->tiff_pagecount].page_number=t2p->tiff_pagecount; - ispage2: - t2p->tiff_pages[t2p->tiff_pagecount].page_directory=i; - if(TIFFIsTiled(input)){ - t2p->tiff_pages[t2p->tiff_pagecount].page_tilecount = - TIFFNumberOfTiles(input); - } - t2p->tiff_pagecount++; - isnotpage: - (void)0; - } - - qsort((void*) t2p->tiff_pages, t2p->tiff_pagecount, - sizeof(T2P_PAGE), t2p_cmp_t2p_page); - - for(i=0;itiff_pagecount;i++){ - t2p->pdf_xrefcount += 5; - TIFFSetDirectory(input, t2p->tiff_pages[i].page_directory ); - if((TIFFGetField(input, TIFFTAG_PHOTOMETRIC, &xuint16) - && (xuint16==PHOTOMETRIC_PALETTE)) - || TIFFGetField(input, TIFFTAG_INDEXED, &xuint16)) { - t2p->tiff_pages[i].page_extra++; - t2p->pdf_xrefcount++; - } -#ifdef ZIP_SUPPORT - if (TIFFGetField(input, TIFFTAG_COMPRESSION, &xuint16)) { - if( (xuint16== COMPRESSION_DEFLATE || - xuint16== COMPRESSION_ADOBE_DEFLATE) && - ((t2p->tiff_pages[i].page_tilecount != 0) - || TIFFNumberOfStrips(input)==1) && - (t2p->pdf_nopassthrough==0) ){ - if(t2p->pdf_minorversion<2){t2p->pdf_minorversion=2;} - } - } -#endif - if (TIFFGetField(input, TIFFTAG_TRANSFERFUNCTION, - &(t2p->tiff_transferfunction[0]), - &(t2p->tiff_transferfunction[1]), - &(t2p->tiff_transferfunction[2]))) { - if((t2p->tiff_transferfunction[1] != (float*) NULL) && - (t2p->tiff_transferfunction[2] != (float*) NULL) && - (t2p->tiff_transferfunction[1] != - t2p->tiff_transferfunction[0])) { - t2p->tiff_transferfunctioncount = 3; - t2p->tiff_pages[i].page_extra += 4; - t2p->pdf_xrefcount += 4; - } else { - t2p->tiff_transferfunctioncount = 1; - t2p->tiff_pages[i].page_extra += 2; - t2p->pdf_xrefcount += 2; - } - if(t2p->pdf_minorversion < 2) - t2p->pdf_minorversion = 2; - } else { - t2p->tiff_transferfunctioncount=0; - } - if( TIFFGetField( - input, - TIFFTAG_ICCPROFILE, - &(t2p->tiff_iccprofilelength), - &(t2p->tiff_iccprofile)) != 0){ - t2p->tiff_pages[i].page_extra++; - t2p->pdf_xrefcount++; - if(t2p->pdf_minorversion<3){t2p->pdf_minorversion=3;} - } - t2p->tiff_tiles[i].tiles_tilecount= - t2p->tiff_pages[i].page_tilecount; - if( (TIFFGetField(input, TIFFTAG_PLANARCONFIG, &xuint16) != 0) - && (xuint16 == PLANARCONFIG_SEPARATE ) ){ - if( !TIFFGetField(input, TIFFTAG_SAMPLESPERPIXEL, &xuint16) ) - { - TIFFError( - TIFF2PDF_MODULE, - "Missing SamplesPerPixel, %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if( (t2p->tiff_tiles[i].tiles_tilecount % xuint16) != 0 ) - { - TIFFError( - TIFF2PDF_MODULE, - "Invalid tile count, %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->tiff_tiles[i].tiles_tilecount/= xuint16; - } - if( t2p->tiff_tiles[i].tiles_tilecount > 0){ - t2p->pdf_xrefcount += - (t2p->tiff_tiles[i].tiles_tilecount -1)*2; - TIFFGetField(input, - TIFFTAG_TILEWIDTH, - &( t2p->tiff_tiles[i].tiles_tilewidth) ); - TIFFGetField(input, - TIFFTAG_TILELENGTH, - &( t2p->tiff_tiles[i].tiles_tilelength) ); - t2p->tiff_tiles[i].tiles_tiles = - (T2P_TILE*) _TIFFmalloc(TIFFSafeMultiply(tmsize_t,t2p->tiff_tiles[i].tiles_tilecount, - sizeof(T2P_TILE)) ); - if( t2p->tiff_tiles[i].tiles_tiles == NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_read_tiff_init, %s", - (unsigned long) t2p->tiff_tiles[i].tiles_tilecount * sizeof(T2P_TILE), - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - } - } - - return; -} - -/* - * This function is used by qsort to sort a T2P_PAGE* array of page structures - * by page number. If the page numbers are the same, we fall back to comparing - * directory numbers to preserve the order of the input file. - */ - -int t2p_cmp_t2p_page(const void* e1, const void* e2){ - - int d; - d = (int32)(((T2P_PAGE*)e1)->page_number) - (int32)(((T2P_PAGE*)e2)->page_number); - if(d == 0){ - d = (int32)(((T2P_PAGE*)e1)->page_directory) - (int32)(((T2P_PAGE*)e2)->page_directory); - } - return d; -} - -/* - This function sets the input directory to the directory of a given - page and determines information about the image. It checks - the image characteristics to determine if it is possible to convert - the image data into a page of PDF output, setting values of the T2P - struct for this page. It determines what color space is used in - the output PDF to represent the image. - - It determines if the image can be converted as raw data without - requiring transcoding of the image data. -*/ - -void t2p_read_tiff_data(T2P* t2p, TIFF* input){ - - int i=0; - uint16* r; - uint16* g; - uint16* b; - uint16* a; - uint16 xuint16; - uint16* xuint16p; - float* xfloatp; - - t2p->pdf_transcode = T2P_TRANSCODE_ENCODE; - t2p->pdf_sample = T2P_SAMPLE_NOTHING; - t2p->pdf_switchdecode = t2p->pdf_colorspace_invert; - - - TIFFSetDirectory(input, t2p->tiff_pages[t2p->pdf_page].page_directory); - - TIFFGetField(input, TIFFTAG_IMAGEWIDTH, &(t2p->tiff_width)); - if(t2p->tiff_width == 0){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with zero width", - TIFFFileName(input) ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - - TIFFGetField(input, TIFFTAG_IMAGELENGTH, &(t2p->tiff_length)); - if(t2p->tiff_length == 0){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with zero length", - TIFFFileName(input) ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - - if(TIFFGetField(input, TIFFTAG_COMPRESSION, &(t2p->tiff_compression)) == 0){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with no compression tag", - TIFFFileName(input) ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - - } - if( TIFFIsCODECConfigured(t2p->tiff_compression) == 0){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with compression type %u: not configured", - TIFFFileName(input), - t2p->tiff_compression - ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - - } - - TIFFGetFieldDefaulted(input, TIFFTAG_BITSPERSAMPLE, &(t2p->tiff_bitspersample)); - switch(t2p->tiff_bitspersample){ - case 1: - case 2: - case 4: - case 8: - break; - case 0: - TIFFWarning( - TIFF2PDF_MODULE, - "Image %s has 0 bits per sample, assuming 1", - TIFFFileName(input)); - t2p->tiff_bitspersample=1; - break; - default: - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with %u bits per sample", - TIFFFileName(input), - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - - TIFFGetFieldDefaulted(input, TIFFTAG_SAMPLESPERPIXEL, &(t2p->tiff_samplesperpixel)); - if(t2p->tiff_samplesperpixel>4){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with %u samples per pixel", - TIFFFileName(input), - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if(t2p->tiff_samplesperpixel==0){ - TIFFWarning( - TIFF2PDF_MODULE, - "Image %s has 0 samples per pixel, assuming 1", - TIFFFileName(input)); - t2p->tiff_samplesperpixel=1; - } - - if(TIFFGetField(input, TIFFTAG_SAMPLEFORMAT, &xuint16) != 0 ){ - switch(xuint16){ - case 0: - case 1: - case 4: - break; - default: - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with sample format %u", - TIFFFileName(input), - xuint16); - t2p->t2p_error = T2P_ERR_ERROR; - return; - break; - } - } - - TIFFGetFieldDefaulted(input, TIFFTAG_FILLORDER, &(t2p->tiff_fillorder)); - - if(TIFFGetField(input, TIFFTAG_PHOTOMETRIC, &(t2p->tiff_photometric)) == 0){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with no photometric interpretation tag", - TIFFFileName(input) ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - - } - - switch(t2p->tiff_photometric){ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - if (t2p->tiff_bitspersample==1){ - t2p->pdf_colorspace=T2P_CS_BILEVEL; - if(t2p->tiff_photometric==PHOTOMETRIC_MINISWHITE){ - t2p->pdf_switchdecode ^= 1; - } - } else { - t2p->pdf_colorspace=T2P_CS_GRAY; - if(t2p->tiff_photometric==PHOTOMETRIC_MINISWHITE){ - t2p->pdf_switchdecode ^= 1; - } - } - break; - case PHOTOMETRIC_RGB: - t2p->pdf_colorspace=T2P_CS_RGB; - if(t2p->tiff_samplesperpixel == 3){ - break; - } - if(TIFFGetField(input, TIFFTAG_INDEXED, &xuint16)){ - if(xuint16==1) - goto photometric_palette; - } - if(t2p->tiff_samplesperpixel > 3) { - if(t2p->tiff_samplesperpixel == 4) { - t2p->pdf_colorspace = T2P_CS_RGB; - if(TIFFGetField(input, - TIFFTAG_EXTRASAMPLES, - &xuint16, &xuint16p) - && xuint16 == 1) { - if(xuint16p[0] == EXTRASAMPLE_ASSOCALPHA){ - if( t2p->tiff_bitspersample != 8 ) - { - TIFFError( - TIFF2PDF_MODULE, - "No support for BitsPerSample=%d for RGBA", - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_sample=T2P_SAMPLE_RGBAA_TO_RGB; - break; - } - if(xuint16p[0] == EXTRASAMPLE_UNASSALPHA){ - if( t2p->tiff_bitspersample != 8 ) - { - TIFFError( - TIFF2PDF_MODULE, - "No support for BitsPerSample=%d for RGBA", - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_sample=T2P_SAMPLE_RGBA_TO_RGB; - break; - } - TIFFWarning( - TIFF2PDF_MODULE, - "RGB image %s has 4 samples per pixel, assuming RGBA", - TIFFFileName(input)); - break; - } - t2p->pdf_colorspace=T2P_CS_CMYK; - t2p->pdf_switchdecode ^= 1; - TIFFWarning( - TIFF2PDF_MODULE, - "RGB image %s has 4 samples per pixel, assuming inverse CMYK", - TIFFFileName(input)); - break; - } else { - TIFFError( - TIFF2PDF_MODULE, - "No support for RGB image %s with %u samples per pixel", - TIFFFileName(input), - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - break; - } - } else { - TIFFError( - TIFF2PDF_MODULE, - "No support for RGB image %s with %u samples per pixel", - TIFFFileName(input), - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - break; - } - case PHOTOMETRIC_PALETTE: - photometric_palette: - if(t2p->tiff_samplesperpixel!=1){ - TIFFError( - TIFF2PDF_MODULE, - "No support for palettized image %s with not one sample per pixel", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_colorspace=T2P_CS_RGB | T2P_CS_PALETTE; - t2p->pdf_palettesize=0x0001<tiff_bitspersample; - if(!TIFFGetField(input, TIFFTAG_COLORMAP, &r, &g, &b)){ - TIFFError( - TIFF2PDF_MODULE, - "Palettized image %s has no color map", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if(t2p->pdf_palette != NULL){ - _TIFFfree(t2p->pdf_palette); - t2p->pdf_palette=NULL; - } - t2p->pdf_palette = (unsigned char*) - _TIFFmalloc(TIFFSafeMultiply(tmsize_t,t2p->pdf_palettesize,3)); - if(t2p->pdf_palette==NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %u bytes of memory for t2p_read_tiff_image, %s", - t2p->pdf_palettesize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - for(i=0;ipdf_palettesize;i++){ - t2p->pdf_palette[(i*3)] = (unsigned char) (r[i]>>8); - t2p->pdf_palette[(i*3)+1]= (unsigned char) (g[i]>>8); - t2p->pdf_palette[(i*3)+2]= (unsigned char) (b[i]>>8); - } - t2p->pdf_palettesize *= 3; - break; - case PHOTOMETRIC_SEPARATED: - if(TIFFGetField(input, TIFFTAG_INDEXED, &xuint16)){ - if(xuint16==1){ - goto photometric_palette_cmyk; - } - } - if( TIFFGetField(input, TIFFTAG_INKSET, &xuint16) ){ - if(xuint16 != INKSET_CMYK){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s because its inkset is not CMYK", - TIFFFileName(input) ); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - } - if(t2p->tiff_samplesperpixel==4){ - t2p->pdf_colorspace=T2P_CS_CMYK; - } else { - TIFFError( - TIFF2PDF_MODULE, - "No support for %s because it has %u samples per pixel", - TIFFFileName(input), - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - break; - photometric_palette_cmyk: - if(t2p->tiff_samplesperpixel!=1){ - TIFFError( - TIFF2PDF_MODULE, - "No support for palettized CMYK image %s with not one sample per pixel", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_colorspace=T2P_CS_CMYK | T2P_CS_PALETTE; - t2p->pdf_palettesize=0x0001<tiff_bitspersample; - if(!TIFFGetField(input, TIFFTAG_COLORMAP, &r, &g, &b, &a)){ - TIFFError( - TIFF2PDF_MODULE, - "Palettized image %s has no color map", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if(t2p->pdf_palette != NULL){ - _TIFFfree(t2p->pdf_palette); - t2p->pdf_palette=NULL; - } - t2p->pdf_palette = (unsigned char*) - _TIFFmalloc(TIFFSafeMultiply(tmsize_t,t2p->pdf_palettesize,4)); - if(t2p->pdf_palette==NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %u bytes of memory for t2p_read_tiff_image, %s", - t2p->pdf_palettesize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - for(i=0;ipdf_palettesize;i++){ - t2p->pdf_palette[(i*4)] = (unsigned char) (r[i]>>8); - t2p->pdf_palette[(i*4)+1]= (unsigned char) (g[i]>>8); - t2p->pdf_palette[(i*4)+2]= (unsigned char) (b[i]>>8); - t2p->pdf_palette[(i*4)+3]= (unsigned char) (a[i]>>8); - } - t2p->pdf_palettesize *= 4; - break; - case PHOTOMETRIC_YCBCR: - t2p->pdf_colorspace=T2P_CS_RGB; - if(t2p->tiff_samplesperpixel==1){ - t2p->pdf_colorspace=T2P_CS_GRAY; - t2p->tiff_photometric=PHOTOMETRIC_MINISBLACK; - break; - } - t2p->pdf_sample=T2P_SAMPLE_YCBCR_TO_RGB; -#ifdef JPEG_SUPPORT - if(t2p->pdf_defaultcompression==T2P_COMPRESS_JPEG){ - t2p->pdf_sample=T2P_SAMPLE_NOTHING; - } -#endif - break; - case PHOTOMETRIC_CIELAB: - if( t2p->tiff_samplesperpixel != 3){ - TIFFError( - TIFF2PDF_MODULE, - "Unsupported samplesperpixel = %d for CIELAB", - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if( t2p->tiff_bitspersample != 8){ - TIFFError( - TIFF2PDF_MODULE, - "Invalid bitspersample = %d for CIELAB", - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_labrange[0]= -127; - t2p->pdf_labrange[1]= 127; - t2p->pdf_labrange[2]= -127; - t2p->pdf_labrange[3]= 127; - t2p->pdf_sample=T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED; - t2p->pdf_colorspace=T2P_CS_LAB; - break; - case PHOTOMETRIC_ICCLAB: - t2p->pdf_labrange[0]= 0; - t2p->pdf_labrange[1]= 255; - t2p->pdf_labrange[2]= 0; - t2p->pdf_labrange[3]= 255; - t2p->pdf_colorspace=T2P_CS_LAB; - break; - case PHOTOMETRIC_ITULAB: - if( t2p->tiff_samplesperpixel != 3){ - TIFFError( - TIFF2PDF_MODULE, - "Unsupported samplesperpixel = %d for ITULAB", - t2p->tiff_samplesperpixel); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - if( t2p->tiff_bitspersample != 8){ - TIFFError( - TIFF2PDF_MODULE, - "Invalid bitspersample = %d for ITULAB", - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - t2p->pdf_labrange[0]=-85; - t2p->pdf_labrange[1]=85; - t2p->pdf_labrange[2]=-75; - t2p->pdf_labrange[3]=124; - t2p->pdf_sample=T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED; - t2p->pdf_colorspace=T2P_CS_LAB; - break; - case PHOTOMETRIC_LOGL: - case PHOTOMETRIC_LOGLUV: - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with photometric interpretation LogL/LogLuv", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - default: - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with photometric interpretation %u", - TIFFFileName(input), - t2p->tiff_photometric); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - - if(TIFFGetField(input, TIFFTAG_PLANARCONFIG, &(t2p->tiff_planar))){ - switch(t2p->tiff_planar){ - case 0: - TIFFWarning( - TIFF2PDF_MODULE, - "Image %s has planar configuration 0, assuming 1", - TIFFFileName(input)); - t2p->tiff_planar=PLANARCONFIG_CONTIG; - case PLANARCONFIG_CONTIG: - break; - case PLANARCONFIG_SEPARATE: - t2p->pdf_sample=T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG; - if(t2p->tiff_bitspersample!=8){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with separated planar configuration and %u bits per sample", - TIFFFileName(input), - t2p->tiff_bitspersample); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - break; - default: - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with planar configuration %u", - TIFFFileName(input), - t2p->tiff_planar); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - } - - TIFFGetFieldDefaulted(input, TIFFTAG_ORIENTATION, - &(t2p->tiff_orientation)); - if(t2p->tiff_orientation>8){ - TIFFWarning(TIFF2PDF_MODULE, - "Image %s has orientation %u, assuming 0", - TIFFFileName(input), t2p->tiff_orientation); - t2p->tiff_orientation=0; - } - - if(TIFFGetField(input, TIFFTAG_XRESOLUTION, &(t2p->tiff_xres) ) == 0){ - t2p->tiff_xres=0.0; - } - if(TIFFGetField(input, TIFFTAG_YRESOLUTION, &(t2p->tiff_yres) ) == 0){ - t2p->tiff_yres=0.0; - } - TIFFGetFieldDefaulted(input, TIFFTAG_RESOLUTIONUNIT, - &(t2p->tiff_resunit)); - if(t2p->tiff_resunit == RESUNIT_CENTIMETER) { - t2p->tiff_xres *= 2.54F; - t2p->tiff_yres *= 2.54F; - } else if (t2p->tiff_resunit != RESUNIT_INCH - && t2p->pdf_centimeters != 0) { - t2p->tiff_xres *= 2.54F; - t2p->tiff_yres *= 2.54F; - } - - t2p_compose_pdf_page(t2p); - if( t2p->t2p_error == T2P_ERR_ERROR ) - return; - - t2p->pdf_transcode = T2P_TRANSCODE_ENCODE; - if(t2p->pdf_nopassthrough==0){ -#ifdef CCITT_SUPPORT - if(t2p->tiff_compression==COMPRESSION_CCITTFAX4 - ){ - if(TIFFIsTiled(input) || (TIFFNumberOfStrips(input)==1) ){ - t2p->pdf_transcode = T2P_TRANSCODE_RAW; - t2p->pdf_compression=T2P_COMPRESS_G4; - } - } -#endif -#ifdef ZIP_SUPPORT - if(t2p->tiff_compression== COMPRESSION_ADOBE_DEFLATE - || t2p->tiff_compression==COMPRESSION_DEFLATE){ - if(TIFFIsTiled(input) || (TIFFNumberOfStrips(input)==1) ){ - t2p->pdf_transcode = T2P_TRANSCODE_RAW; - t2p->pdf_compression=T2P_COMPRESS_ZIP; - } - } -#endif -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression==COMPRESSION_OJPEG){ - t2p->pdf_transcode = T2P_TRANSCODE_RAW; - t2p->pdf_compression=T2P_COMPRESS_JPEG; - t2p_process_ojpeg_tables(t2p, input); - } -#endif -#ifdef JPEG_SUPPORT - if(t2p->tiff_compression==COMPRESSION_JPEG){ - t2p->pdf_transcode = T2P_TRANSCODE_RAW; - t2p->pdf_compression=T2P_COMPRESS_JPEG; - } -#endif - (void)0; - } - - if(t2p->pdf_transcode!=T2P_TRANSCODE_RAW){ - t2p->pdf_compression = t2p->pdf_defaultcompression; - } - -#ifdef JPEG_SUPPORT - if(t2p->pdf_defaultcompression==T2P_COMPRESS_JPEG){ - if(t2p->pdf_colorspace & T2P_CS_PALETTE){ - t2p->pdf_sample|=T2P_SAMPLE_REALIZE_PALETTE; - t2p->pdf_colorspace ^= T2P_CS_PALETTE; - t2p->tiff_pages[t2p->pdf_page].page_extra--; - } - } - if(t2p->tiff_compression==COMPRESSION_JPEG){ - if(t2p->tiff_planar==PLANARCONFIG_SEPARATE){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with JPEG compression and separated planar configuration", - TIFFFileName(input)); - t2p->t2p_error=T2P_ERR_ERROR; - return; - } - } -#endif -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression==COMPRESSION_OJPEG){ - if(t2p->tiff_planar==PLANARCONFIG_SEPARATE){ - TIFFError( - TIFF2PDF_MODULE, - "No support for %s with OJPEG compression and separated planar configuration", - TIFFFileName(input)); - t2p->t2p_error=T2P_ERR_ERROR; - return; - } - } -#endif - - if(t2p->pdf_sample & T2P_SAMPLE_REALIZE_PALETTE){ - if(t2p->pdf_colorspace & T2P_CS_CMYK){ - t2p->tiff_samplesperpixel=4; - t2p->tiff_photometric=PHOTOMETRIC_SEPARATED; - } else { - t2p->tiff_samplesperpixel=3; - t2p->tiff_photometric=PHOTOMETRIC_RGB; - } - } - - if (TIFFGetField(input, TIFFTAG_TRANSFERFUNCTION, - &(t2p->tiff_transferfunction[0]), - &(t2p->tiff_transferfunction[1]), - &(t2p->tiff_transferfunction[2]))) { - if((t2p->tiff_transferfunction[1] != (float*) NULL) && - (t2p->tiff_transferfunction[2] != (float*) NULL) && - (t2p->tiff_transferfunction[1] != - t2p->tiff_transferfunction[0])) { - t2p->tiff_transferfunctioncount=3; - } else { - t2p->tiff_transferfunctioncount=1; - } - } else { - t2p->tiff_transferfunctioncount=0; - } - if(TIFFGetField(input, TIFFTAG_WHITEPOINT, &xfloatp)!=0){ - t2p->tiff_whitechromaticities[0]=xfloatp[0]; - t2p->tiff_whitechromaticities[1]=xfloatp[1]; - if(t2p->pdf_colorspace & T2P_CS_GRAY){ - t2p->pdf_colorspace |= T2P_CS_CALGRAY; - } - if(t2p->pdf_colorspace & T2P_CS_RGB){ - t2p->pdf_colorspace |= T2P_CS_CALRGB; - } - } - if(TIFFGetField(input, TIFFTAG_PRIMARYCHROMATICITIES, &xfloatp)!=0){ - t2p->tiff_primarychromaticities[0]=xfloatp[0]; - t2p->tiff_primarychromaticities[1]=xfloatp[1]; - t2p->tiff_primarychromaticities[2]=xfloatp[2]; - t2p->tiff_primarychromaticities[3]=xfloatp[3]; - t2p->tiff_primarychromaticities[4]=xfloatp[4]; - t2p->tiff_primarychromaticities[5]=xfloatp[5]; - if(t2p->pdf_colorspace & T2P_CS_RGB){ - t2p->pdf_colorspace |= T2P_CS_CALRGB; - } - } - if(t2p->pdf_colorspace & T2P_CS_LAB){ - if(TIFFGetField(input, TIFFTAG_WHITEPOINT, &xfloatp) != 0){ - t2p->tiff_whitechromaticities[0]=xfloatp[0]; - t2p->tiff_whitechromaticities[1]=xfloatp[1]; - } else { - t2p->tiff_whitechromaticities[0]=0.3457F; /* 0.3127F; */ - t2p->tiff_whitechromaticities[1]=0.3585F; /* 0.3290F; */ - } - } - if(TIFFGetField(input, - TIFFTAG_ICCPROFILE, - &(t2p->tiff_iccprofilelength), - &(t2p->tiff_iccprofile))!=0){ - t2p->pdf_colorspace |= T2P_CS_ICCBASED; - } else { - t2p->tiff_iccprofilelength=0; - t2p->tiff_iccprofile=NULL; - } - -#ifdef CCITT_SUPPORT - if( t2p->tiff_bitspersample==1 && - t2p->tiff_samplesperpixel==1){ - t2p->pdf_compression = T2P_COMPRESS_G4; - } -#endif - - - return; -} - -/* - This function returns the necessary size of a data buffer to contain the raw or - uncompressed image data from the input TIFF for a page. -*/ - -void t2p_read_tiff_size(T2P* t2p, TIFF* input){ - - uint64* sbc=NULL; -#if defined(JPEG_SUPPORT) || defined (OJPEG_SUPPORT) - unsigned char* jpt=NULL; - tstrip_t i=0; - tstrip_t stripcount=0; -#endif - uint64 k = 0; - - if(t2p->pdf_transcode == T2P_TRANSCODE_RAW){ -#ifdef CCITT_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_G4 ){ - TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc); - t2p->tiff_datasize=(tmsize_t)sbc[0]; - return; - } -#endif -#ifdef ZIP_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_ZIP){ - TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc); - t2p->tiff_datasize=(tmsize_t)sbc[0]; - return; - } -#endif -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_OJPEG){ - if(!TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc)){ - TIFFError(TIFF2PDF_MODULE, - "Input file %s missing field: TIFFTAG_STRIPBYTECOUNTS", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - stripcount=TIFFNumberOfStrips(input); - for(i=0;itiff_dataoffset))){ - if(t2p->tiff_dataoffset != 0){ - if(TIFFGetField(input, TIFFTAG_JPEGIFBYTECOUNT, &(t2p->tiff_datasize))!=0){ - if((uint64)t2p->tiff_datasize < k) { - TIFFWarning(TIFF2PDF_MODULE, - "Input file %s has short JPEG interchange file byte count", - TIFFFileName(input)); - t2p->pdf_ojpegiflength=t2p->tiff_datasize; - k = checkAdd64(k, t2p->tiff_datasize, t2p); - k = checkAdd64(k, 6, t2p); - k = checkAdd64(k, stripcount, t2p); - k = checkAdd64(k, stripcount, t2p); - t2p->tiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - return; - } - return; - }else { - TIFFError(TIFF2PDF_MODULE, - "Input file %s missing field: TIFFTAG_JPEGIFBYTECOUNT", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - } - } - k = checkAdd64(k, stripcount, t2p); - k = checkAdd64(k, stripcount, t2p); - k = checkAdd64(k, 2048, t2p); - t2p->tiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - return; - } -#endif -#ifdef JPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_JPEG) { - uint32 count = 0; - if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0 ){ - if(count > 4){ - k += count; - k -= 2; /* don't use EOI of header */ - } - } else { - k = 2; /* SOI for first strip */ - } - stripcount=TIFFNumberOfStrips(input); - if(!TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc)){ - TIFFError(TIFF2PDF_MODULE, - "Input file %s missing field: TIFFTAG_STRIPBYTECOUNTS", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - for(i=0;itiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - return; - } -#endif - (void) 0; - } - k = checkMultiply64(TIFFScanlineSize(input), t2p->tiff_length, t2p); - if(t2p->tiff_planar==PLANARCONFIG_SEPARATE){ - k = checkMultiply64(k, t2p->tiff_samplesperpixel, t2p); - } - if (k == 0) { - /* Assume we had overflow inside TIFFScanlineSize */ - t2p->t2p_error = T2P_ERR_ERROR; - } - - t2p->tiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - - return; -} - -/* - This function returns the necessary size of a data buffer to contain the raw or - uncompressed image data from the input TIFF for a tile of a page. -*/ - -void t2p_read_tiff_size_tile(T2P* t2p, TIFF* input, ttile_t tile){ - - uint64* tbc = NULL; - uint16 edge=0; -#ifdef JPEG_SUPPORT - unsigned char* jpt; -#endif - uint64 k; - - edge |= t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile); - edge |= t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile); - - if(t2p->pdf_transcode==T2P_TRANSCODE_RAW){ - if(edge -#if defined(JPEG_SUPPORT) || defined(OJPEG_SUPPORT) - && !(t2p->pdf_compression==T2P_COMPRESS_JPEG) -#endif - ){ - t2p->tiff_datasize=TIFFTileSize(input); - if (t2p->tiff_datasize == 0) { - /* Assume we had overflow inside TIFFTileSize */ - t2p->t2p_error = T2P_ERR_ERROR; - } - return; - } else { - TIFFGetField(input, TIFFTAG_TILEBYTECOUNTS, &tbc); - k=tbc[tile]; -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression==COMPRESSION_OJPEG){ - k = checkAdd64(k, 2048, t2p); - } -#endif -#ifdef JPEG_SUPPORT - if(t2p->tiff_compression==COMPRESSION_JPEG) { - uint32 count = 0; - if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt)!=0){ - if(count > 4){ - k = checkAdd64(k, count, t2p); - k -= 2; /* don't use EOI of header or SOI of tile */ - } - } - } -#endif - t2p->tiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - return; - } - } - k = TIFFTileSize(input); - if(t2p->tiff_planar==PLANARCONFIG_SEPARATE){ - k = checkMultiply64(k, t2p->tiff_samplesperpixel, t2p); - } - if (k == 0) { - /* Assume we had overflow inside TIFFTileSize */ - t2p->t2p_error = T2P_ERR_ERROR; - } - - t2p->tiff_datasize = (tsize_t) k; - if ((uint64) t2p->tiff_datasize != k) { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - } - - return; -} - -/* - * This functions returns a non-zero value when the tile is on the right edge - * and does not have full imaged tile width. - */ - -int t2p_tile_is_right_edge(T2P_TILES tiles, ttile_t tile){ - - if( ((tile+1) % tiles.tiles_tilecountx == 0) - && (tiles.tiles_edgetilewidth != 0) ){ - return(1); - } else { - return(0); - } -} - -/* - * This functions returns a non-zero value when the tile is on the bottom edge - * and does not have full imaged tile length. - */ - -int t2p_tile_is_bottom_edge(T2P_TILES tiles, ttile_t tile){ - - if( ((tile+1) > (tiles.tiles_tilecount-tiles.tiles_tilecountx) ) - && (tiles.tiles_edgetilelength != 0) ){ - return(1); - } else { - return(0); - } -} - -/* - * This function returns a non-zero value when the tile is a right edge tile - * or a bottom edge tile. - */ - -int t2p_tile_is_edge(T2P_TILES tiles, ttile_t tile){ - - return(t2p_tile_is_right_edge(tiles, tile) | t2p_tile_is_bottom_edge(tiles, tile) ); -} - -/* - This function returns a non-zero value when the tile is a right edge tile and a bottom - edge tile. -*/ - -int t2p_tile_is_corner_edge(T2P_TILES tiles, ttile_t tile){ - - return(t2p_tile_is_right_edge(tiles, tile) & t2p_tile_is_bottom_edge(tiles, tile) ); -} - - -/* - This function reads the raster image data from the input TIFF for an image and writes - the data to the output PDF XObject image dictionary stream. It returns the amount written - or zero on error. -*/ - -tsize_t t2p_readwrite_pdf_image(T2P* t2p, TIFF* input, TIFF* output){ - - tsize_t written=0; - unsigned char* buffer=NULL; - unsigned char* samplebuffer=NULL; - tsize_t bufferoffset=0; - tsize_t samplebufferoffset=0; - tsize_t read=0; - tstrip_t i=0; - tstrip_t j=0; - tstrip_t stripcount=0; - tsize_t stripsize=0; - tsize_t sepstripcount=0; - tsize_t sepstripsize=0; -#ifdef OJPEG_SUPPORT - toff_t inputoffset=0; - uint16 h_samp=1; - uint16 v_samp=1; - uint16 ri=1; - uint32 rows=0; -#endif -#ifdef JPEG_SUPPORT - unsigned char* jpt; - float* xfloatp; - uint64* sbc; - unsigned char* stripbuffer; - tsize_t striplength=0; - uint32 max_striplength=0; -#endif - - /* Fail if prior error (in particular, can't trust tiff_datasize) */ - if (t2p->t2p_error != T2P_ERR_OK) - return(0); - - if(t2p->pdf_transcode == T2P_TRANSCODE_RAW){ -#ifdef CCITT_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_G4){ - buffer = (unsigned char*) - _TIFFmalloc(t2p->tiff_datasize); - if (buffer == NULL) { - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for " - "t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - TIFFReadRawStrip(input, 0, (tdata_t) buffer, - t2p->tiff_datasize); - if (t2p->tiff_fillorder==FILLORDER_LSB2MSB){ - /* - * make sure is lsb-to-msb - * bit-endianness fill order - */ - TIFFReverseBits(buffer, - t2p->tiff_datasize); - } - t2pWriteFile(output, (tdata_t) buffer, - t2p->tiff_datasize); - _TIFFfree(buffer); - return(t2p->tiff_datasize); - } -#endif -#ifdef ZIP_SUPPORT - if (t2p->pdf_compression == T2P_COMPRESS_ZIP) { - buffer = (unsigned char*) - _TIFFmalloc(t2p->tiff_datasize); - if(buffer == NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - TIFFReadRawStrip(input, 0, (tdata_t) buffer, - t2p->tiff_datasize); - if (t2p->tiff_fillorder==FILLORDER_LSB2MSB) { - TIFFReverseBits(buffer, - t2p->tiff_datasize); - } - t2pWriteFile(output, (tdata_t) buffer, - t2p->tiff_datasize); - _TIFFfree(buffer); - return(t2p->tiff_datasize); - } -#endif -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_OJPEG) { - - if(t2p->tiff_dataoffset != 0) { - buffer = (unsigned char*) - _TIFFmalloc(t2p->tiff_datasize); - if(buffer == NULL) { - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - if(t2p->pdf_ojpegiflength==0){ - inputoffset=t2pSeekFile(input, 0, - SEEK_CUR); - t2pSeekFile(input, - t2p->tiff_dataoffset, - SEEK_SET); - t2pReadFile(input, (tdata_t) buffer, - t2p->tiff_datasize); - t2pSeekFile(input, inputoffset, - SEEK_SET); - t2pWriteFile(output, (tdata_t) buffer, - t2p->tiff_datasize); - _TIFFfree(buffer); - return(t2p->tiff_datasize); - } else { - inputoffset=t2pSeekFile(input, 0, - SEEK_CUR); - t2pSeekFile(input, - t2p->tiff_dataoffset, - SEEK_SET); - bufferoffset = t2pReadFile(input, - (tdata_t) buffer, - t2p->pdf_ojpegiflength); - t2p->pdf_ojpegiflength = 0; - t2pSeekFile(input, inputoffset, - SEEK_SET); - TIFFGetField(input, - TIFFTAG_YCBCRSUBSAMPLING, - &h_samp, &v_samp); - buffer[bufferoffset++]= 0xff; - buffer[bufferoffset++]= 0xdd; - buffer[bufferoffset++]= 0x00; - buffer[bufferoffset++]= 0x04; - h_samp*=8; - v_samp*=8; - ri=(t2p->tiff_width+h_samp-1) / h_samp; - TIFFGetField(input, - TIFFTAG_ROWSPERSTRIP, - &rows); - ri*=(rows+v_samp-1)/v_samp; - buffer[bufferoffset++]= (ri>>8) & 0xff; - buffer[bufferoffset++]= ri & 0xff; - stripcount=TIFFNumberOfStrips(input); - for(i=0;ipdf_ojpegdata){ - TIFFError(TIFF2PDF_MODULE, - "No support for OJPEG image %s with bad tables", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - buffer = (unsigned char*) - _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - _TIFFmemcpy(buffer, t2p->pdf_ojpegdata, t2p->pdf_ojpegdatalength); - bufferoffset=t2p->pdf_ojpegdatalength; - stripcount=TIFFNumberOfStrips(input); - for(i=0;it2p_error = T2P_ERR_ERROR; - return(0); - } - return(t2p->tiff_datasize); - } -#endif -#ifdef JPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_JPEG) { - uint32 count = 0; - buffer = (unsigned char*) - _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - if (TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) { - if(count > 4) { - _TIFFmemcpy(buffer, jpt, count); - bufferoffset += count - 2; - } - } - stripcount=TIFFNumberOfStrips(input); - TIFFGetField(input, TIFFTAG_STRIPBYTECOUNTS, &sbc); - for(i=0;imax_striplength) max_striplength=sbc[i]; - } - stripbuffer = (unsigned char*) - _TIFFmalloc(max_striplength); - if(stripbuffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %u bytes of memory for t2p_readwrite_pdf_image, %s", - max_striplength, - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - for(i=0;itiff_length)){ - TIFFError(TIFF2PDF_MODULE, - "Can't process JPEG data in input file %s", - TIFFFileName(input)); - _TIFFfree(samplebuffer); - _TIFFfree(buffer); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - } - buffer[bufferoffset++]=0xff; - buffer[bufferoffset++]=0xd9; - t2pWriteFile(output, (tdata_t) buffer, bufferoffset); - _TIFFfree(stripbuffer); - _TIFFfree(buffer); - return(bufferoffset); - } -#endif - (void)0; - } - - if(t2p->pdf_sample==T2P_SAMPLE_NOTHING){ - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - stripsize=TIFFStripSize(input); - stripcount=TIFFNumberOfStrips(input); - for(i=0;itiff_datasize - bufferoffset)); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding strip %u of %s", - i, - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - bufferoffset+=read; - } - } else { - if(t2p->pdf_sample & T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG){ - - sepstripsize=TIFFStripSize(input); - sepstripcount=TIFFNumberOfStrips(input); - - stripsize=sepstripsize*t2p->tiff_samplesperpixel; - stripcount=sepstripcount/t2p->tiff_samplesperpixel; - - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - samplebuffer = (unsigned char*) _TIFFmalloc(stripsize); - if(samplebuffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - for(i=0;itiff_samplesperpixel;j++){ - read = - TIFFReadEncodedStrip(input, - i + j*stripcount, - (tdata_t) &(samplebuffer[samplebufferoffset]), - TIFFmin(sepstripsize, stripsize - samplebufferoffset)); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding strip %u of %s", - i + j*stripcount, - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - samplebufferoffset+=read; - } - t2p_sample_planar_separate_to_contig( - t2p, - &(buffer[bufferoffset]), - samplebuffer, - samplebufferoffset); - bufferoffset+=samplebufferoffset; - } - _TIFFfree(samplebuffer); - goto dataready; - } - - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - memset(buffer, 0, t2p->tiff_datasize); - stripsize=TIFFStripSize(input); - stripcount=TIFFNumberOfStrips(input); - for(i=0;itiff_datasize - bufferoffset)); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding strip %u of %s", - i, - TIFFFileName(input)); - _TIFFfree(samplebuffer); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - bufferoffset+=read; - } - - if(t2p->pdf_sample & T2P_SAMPLE_REALIZE_PALETTE){ - // FIXME: overflow? - samplebuffer=(unsigned char*)_TIFFrealloc( - (tdata_t) buffer, - t2p->tiff_datasize * t2p->tiff_samplesperpixel); - if(samplebuffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - _TIFFfree(buffer); - return(0); - } else { - buffer=samplebuffer; - t2p->tiff_datasize *= t2p->tiff_samplesperpixel; - } - t2p_sample_realize_palette(t2p, buffer); - } - - if(t2p->pdf_sample & T2P_SAMPLE_RGBA_TO_RGB){ - t2p->tiff_datasize=t2p_sample_rgba_to_rgb( - (tdata_t)buffer, - t2p->tiff_width*t2p->tiff_length); - } - - if(t2p->pdf_sample & T2P_SAMPLE_RGBAA_TO_RGB){ - t2p->tiff_datasize=t2p_sample_rgbaa_to_rgb( - (tdata_t)buffer, - t2p->tiff_width*t2p->tiff_length); - } - - if(t2p->pdf_sample & T2P_SAMPLE_YCBCR_TO_RGB){ - samplebuffer=(unsigned char*)_TIFFrealloc( - (tdata_t)buffer, - t2p->tiff_width*t2p->tiff_length*4); - if(samplebuffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - _TIFFfree(buffer); - return(0); - } else { - buffer=samplebuffer; - } - if(!TIFFReadRGBAImageOriented( - input, - t2p->tiff_width, - t2p->tiff_length, - (uint32*)buffer, - ORIENTATION_TOPLEFT, - 0)){ - TIFFError(TIFF2PDF_MODULE, - "Can't use TIFFReadRGBAImageOriented to extract RGB image from %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - t2p->tiff_datasize=t2p_sample_abgr_to_rgb( - (tdata_t) buffer, - t2p->tiff_width*t2p->tiff_length); - - } - - if(t2p->pdf_sample & T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED){ - t2p->tiff_datasize=t2p_sample_lab_signed_to_unsigned( - (tdata_t)buffer, - t2p->tiff_width*t2p->tiff_length); - } - } - -dataready: - - t2p_disable(output); - TIFFSetField(output, TIFFTAG_PHOTOMETRIC, t2p->tiff_photometric); - TIFFSetField(output, TIFFTAG_BITSPERSAMPLE, t2p->tiff_bitspersample); - TIFFSetField(output, TIFFTAG_SAMPLESPERPIXEL, t2p->tiff_samplesperpixel); - TIFFSetField(output, TIFFTAG_IMAGEWIDTH, t2p->tiff_width); - TIFFSetField(output, TIFFTAG_IMAGELENGTH, t2p->tiff_length); - TIFFSetField(output, TIFFTAG_ROWSPERSTRIP, t2p->tiff_length); - TIFFSetField(output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(output, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB); - - switch(t2p->pdf_compression){ - case T2P_COMPRESS_NONE: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - break; -#ifdef CCITT_SUPPORT - case T2P_COMPRESS_G4: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4); - break; -#endif -#ifdef JPEG_SUPPORT - case T2P_COMPRESS_JPEG: - if(t2p->tiff_photometric==PHOTOMETRIC_YCBCR) { - uint16 hor = 0, ver = 0; - if (TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &hor, &ver) !=0 ) { - if(hor != 0 && ver != 0){ - TIFFSetField(output, TIFFTAG_YCBCRSUBSAMPLING, hor, ver); - } - } - if(TIFFGetField(input, TIFFTAG_REFERENCEBLACKWHITE, &xfloatp)!=0){ - TIFFSetField(output, TIFFTAG_REFERENCEBLACKWHITE, xfloatp); - } - } - if(TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_JPEG)==0){ - TIFFError(TIFF2PDF_MODULE, - "Unable to use JPEG compression for input %s and output %s", - TIFFFileName(input), - TIFFFileName(output)); - _TIFFfree(buffer); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - TIFFSetField(output, TIFFTAG_JPEGTABLESMODE, 0); - - if(t2p->pdf_colorspace & (T2P_CS_RGB | T2P_CS_LAB)){ - TIFFSetField(output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - if(t2p->tiff_photometric != PHOTOMETRIC_YCBCR){ - TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } else { - TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW); - } - } - if(t2p->pdf_colorspace & T2P_CS_GRAY){ - (void)0; - } - if(t2p->pdf_colorspace & T2P_CS_CMYK){ - (void)0; - } - if(t2p->pdf_defaultcompressionquality != 0){ - TIFFSetField(output, - TIFFTAG_JPEGQUALITY, - t2p->pdf_defaultcompressionquality); - } - - break; -#endif -#ifdef ZIP_SUPPORT - case T2P_COMPRESS_ZIP: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE); - if(t2p->pdf_defaultcompressionquality%100 != 0){ - TIFFSetField(output, - TIFFTAG_PREDICTOR, - t2p->pdf_defaultcompressionquality % 100); - } - if(t2p->pdf_defaultcompressionquality/100 != 0){ - TIFFSetField(output, - TIFFTAG_ZIPQUALITY, - (t2p->pdf_defaultcompressionquality / 100)); - } - break; -#endif - default: - break; - } - - t2p_enable(output); - t2p->outputwritten = 0; -#ifdef JPEG_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_JPEG - && t2p->tiff_photometric == PHOTOMETRIC_YCBCR){ - bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0, - buffer, - stripsize * stripcount); - } else -#endif - { - bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t)0, - buffer, - t2p->tiff_datasize); - } - if (buffer != NULL) { - _TIFFfree(buffer); - buffer=NULL; - } - - if (bufferoffset == (tsize_t)-1) { - TIFFError(TIFF2PDF_MODULE, - "Error writing encoded strip to output PDF %s", - TIFFFileName(output)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - - written = t2p->outputwritten; - return(written); -} - -/* - * This function reads the raster image data from the input TIFF for an image - * tile and writes the data to the output PDF XObject image dictionary stream - * for the tile. It returns the amount written or zero on error. - */ - -tsize_t t2p_readwrite_pdf_image_tile(T2P* t2p, TIFF* input, TIFF* output, ttile_t tile){ - - uint16 edge=0; - tsize_t written=0; - unsigned char* buffer=NULL; - tsize_t bufferoffset=0; - unsigned char* samplebuffer=NULL; - tsize_t samplebufferoffset=0; - tsize_t read=0; - uint16 i=0; - ttile_t tilecount=0; - /* tsize_t tilesize=0; */ - ttile_t septilecount=0; - tsize_t septilesize=0; -#ifdef JPEG_SUPPORT - unsigned char* jpt; - float* xfloatp; - uint32 xuint32=0; -#endif - - /* Fail if prior error (in particular, can't trust tiff_datasize) */ - if (t2p->t2p_error != T2P_ERR_OK) - return(0); - - edge |= t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile); - edge |= t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile); - - if( (t2p->pdf_transcode == T2P_TRANSCODE_RAW) && ((edge == 0) -#if defined(JPEG_SUPPORT) || defined(OJPEG_SUPPORT) - || (t2p->pdf_compression == T2P_COMPRESS_JPEG) -#endif - ) - ){ -#ifdef CCITT_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_G4){ - buffer= (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - TIFFReadRawTile(input, tile, (tdata_t) buffer, t2p->tiff_datasize); - if (t2p->tiff_fillorder==FILLORDER_LSB2MSB){ - TIFFReverseBits(buffer, t2p->tiff_datasize); - } - t2pWriteFile(output, (tdata_t) buffer, t2p->tiff_datasize); - _TIFFfree(buffer); - return(t2p->tiff_datasize); - } -#endif -#ifdef ZIP_SUPPORT - if(t2p->pdf_compression == T2P_COMPRESS_ZIP){ - buffer= (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - TIFFReadRawTile(input, tile, (tdata_t) buffer, t2p->tiff_datasize); - if (t2p->tiff_fillorder==FILLORDER_LSB2MSB){ - TIFFReverseBits(buffer, t2p->tiff_datasize); - } - t2pWriteFile(output, (tdata_t) buffer, t2p->tiff_datasize); - _TIFFfree(buffer); - return(t2p->tiff_datasize); - } -#endif -#ifdef OJPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_OJPEG){ - if(! t2p->pdf_ojpegdata){ - TIFFError(TIFF2PDF_MODULE, - "No support for OJPEG image %s with " - "bad tables", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - buffer=(unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - _TIFFmemcpy(buffer, t2p->pdf_ojpegdata, t2p->pdf_ojpegdatalength); - if(edge!=0){ - if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile)){ - buffer[7]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength >> 8) & 0xff; - buffer[8]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength ) & 0xff; - } - if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile)){ - buffer[9]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth >> 8) & 0xff; - buffer[10]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth ) & 0xff; - } - } - bufferoffset=t2p->pdf_ojpegdatalength; - bufferoffset+=TIFFReadRawTile(input, - tile, - (tdata_t) &(((unsigned char*)buffer)[bufferoffset]), - -1); - ((unsigned char*)buffer)[bufferoffset++]=0xff; - ((unsigned char*)buffer)[bufferoffset++]=0xd9; - t2pWriteFile(output, (tdata_t) buffer, bufferoffset); - _TIFFfree(buffer); - return(bufferoffset); - } -#endif -#ifdef JPEG_SUPPORT - if(t2p->tiff_compression == COMPRESSION_JPEG){ - unsigned char table_end[2]; - uint32 count = 0; - buffer= (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) { - if (count > 0) { - _TIFFmemcpy(buffer, jpt, count); - bufferoffset += count - 2; - table_end[0] = buffer[bufferoffset-2]; - table_end[1] = buffer[bufferoffset-1]; - } - if (count > 0) { - xuint32 = bufferoffset; - bufferoffset += TIFFReadRawTile( - input, - tile, - (tdata_t) &(((unsigned char*)buffer)[bufferoffset-2]), - -1); - buffer[xuint32-2]=table_end[0]; - buffer[xuint32-1]=table_end[1]; - } else { - bufferoffset += TIFFReadRawTile( - input, - tile, - (tdata_t) &(((unsigned char*)buffer)[bufferoffset]), - -1); - } - } - t2pWriteFile(output, (tdata_t) buffer, bufferoffset); - _TIFFfree(buffer); - return(bufferoffset); - } -#endif - (void)0; - } - - if(t2p->pdf_sample==T2P_SAMPLE_NOTHING){ - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory for " - "t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - - read = TIFFReadEncodedTile( - input, - tile, - (tdata_t) &buffer[bufferoffset], - t2p->tiff_datasize); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding tile %u of %s", - tile, - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - - } else { - - if(t2p->pdf_sample == T2P_SAMPLE_PLANAR_SEPARATE_TO_CONTIG){ - septilesize=TIFFTileSize(input); - septilecount=TIFFNumberOfTiles(input); - /* tilesize=septilesize*t2p->tiff_samplesperpixel; */ - tilecount=septilecount/t2p->tiff_samplesperpixel; - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - samplebuffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(samplebuffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - samplebufferoffset=0; - for(i=0;itiff_samplesperpixel;i++){ - read = - TIFFReadEncodedTile(input, - tile + i*tilecount, - (tdata_t) &(samplebuffer[samplebufferoffset]), - septilesize); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding tile %u of %s", - tile + i*tilecount, - TIFFFileName(input)); - _TIFFfree(samplebuffer); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - samplebufferoffset+=read; - } - t2p_sample_planar_separate_to_contig( - t2p, - &(buffer[bufferoffset]), - samplebuffer, - samplebufferoffset); - bufferoffset+=samplebufferoffset; - _TIFFfree(samplebuffer); - } - - if(buffer==NULL){ - buffer = (unsigned char*) _TIFFmalloc(t2p->tiff_datasize); - if(buffer==NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %lu bytes of memory " - "for t2p_readwrite_pdf_image_tile, %s", - (unsigned long) t2p->tiff_datasize, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - read = TIFFReadEncodedTile( - input, - tile, - (tdata_t) &buffer[bufferoffset], - t2p->tiff_datasize); - if(read==-1){ - TIFFError(TIFF2PDF_MODULE, - "Error on decoding tile %u of %s", - tile, - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error=T2P_ERR_ERROR; - return(0); - } - } - - if(t2p->pdf_sample & T2P_SAMPLE_RGBA_TO_RGB){ - t2p->tiff_datasize=t2p_sample_rgba_to_rgb( - (tdata_t)buffer, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth - *t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } - - if(t2p->pdf_sample & T2P_SAMPLE_RGBAA_TO_RGB){ - t2p->tiff_datasize=t2p_sample_rgbaa_to_rgb( - (tdata_t)buffer, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth - *t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } - - if(t2p->pdf_sample & T2P_SAMPLE_YCBCR_TO_RGB){ - TIFFError(TIFF2PDF_MODULE, - "No support for YCbCr to RGB in tile for %s", - TIFFFileName(input)); - _TIFFfree(buffer); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - - if(t2p->pdf_sample & T2P_SAMPLE_LAB_SIGNED_TO_UNSIGNED){ - t2p->tiff_datasize=t2p_sample_lab_signed_to_unsigned( - (tdata_t)buffer, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth - *t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } - } - - if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile) != 0){ - t2p_tile_collapse_left( - buffer, - TIFFTileRowSize(input), - t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth, - t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } - - - t2p_disable(output); - TIFFSetField(output, TIFFTAG_PHOTOMETRIC, t2p->tiff_photometric); - TIFFSetField(output, TIFFTAG_BITSPERSAMPLE, t2p->tiff_bitspersample); - TIFFSetField(output, TIFFTAG_SAMPLESPERPIXEL, t2p->tiff_samplesperpixel); - if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile) == 0){ - TIFFSetField( - output, - TIFFTAG_IMAGEWIDTH, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth); - } else { - TIFFSetField( - output, - TIFFTAG_IMAGEWIDTH, - t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth); - } - if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile) == 0){ - TIFFSetField( - output, - TIFFTAG_IMAGELENGTH, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - TIFFSetField( - output, - TIFFTAG_ROWSPERSTRIP, - t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } else { - TIFFSetField( - output, - TIFFTAG_IMAGELENGTH, - t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength); - TIFFSetField( - output, - TIFFTAG_ROWSPERSTRIP, - t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength); - } - TIFFSetField(output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(output, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB); - - switch(t2p->pdf_compression){ - case T2P_COMPRESS_NONE: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_NONE); - break; -#ifdef CCITT_SUPPORT - case T2P_COMPRESS_G4: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4); - break; -#endif -#ifdef JPEG_SUPPORT - case T2P_COMPRESS_JPEG: - if (t2p->tiff_photometric==PHOTOMETRIC_YCBCR) { - uint16 hor = 0, ver = 0; - if (TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &hor, &ver)!=0) { - if (hor != 0 && ver != 0) { - TIFFSetField(output, TIFFTAG_YCBCRSUBSAMPLING, hor, ver); - } - } - if(TIFFGetField(input, TIFFTAG_REFERENCEBLACKWHITE, &xfloatp)!=0){ - TIFFSetField(output, TIFFTAG_REFERENCEBLACKWHITE, xfloatp); - } - } - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_JPEG); - TIFFSetField(output, TIFFTAG_JPEGTABLESMODE, 0); /* JPEGTABLESMODE_NONE */ - if(t2p->pdf_colorspace & (T2P_CS_RGB | T2P_CS_LAB)){ - TIFFSetField(output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - if(t2p->tiff_photometric != PHOTOMETRIC_YCBCR){ - TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } else { - TIFFSetField(output, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW); - } - } - if(t2p->pdf_colorspace & T2P_CS_GRAY){ - (void)0; - } - if(t2p->pdf_colorspace & T2P_CS_CMYK){ - (void)0; - } - if(t2p->pdf_defaultcompressionquality != 0){ - TIFFSetField(output, - TIFFTAG_JPEGQUALITY, - t2p->pdf_defaultcompressionquality); - } - break; -#endif -#ifdef ZIP_SUPPORT - case T2P_COMPRESS_ZIP: - TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE); - if(t2p->pdf_defaultcompressionquality%100 != 0){ - TIFFSetField(output, - TIFFTAG_PREDICTOR, - t2p->pdf_defaultcompressionquality % 100); - } - if(t2p->pdf_defaultcompressionquality/100 != 0){ - TIFFSetField(output, - TIFFTAG_ZIPQUALITY, - (t2p->pdf_defaultcompressionquality / 100)); - } - break; -#endif - default: - break; - } - - t2p_enable(output); - t2p->outputwritten = 0; - bufferoffset = TIFFWriteEncodedStrip(output, (tstrip_t) 0, buffer, - TIFFStripSize(output)); - if (buffer != NULL) { - _TIFFfree(buffer); - buffer = NULL; - } - if (bufferoffset == -1) { - TIFFError(TIFF2PDF_MODULE, - "Error writing encoded tile to output PDF %s", - TIFFFileName(output)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - - written = t2p->outputwritten; - - return(written); -} - -#ifdef OJPEG_SUPPORT -int t2p_process_ojpeg_tables(T2P* t2p, TIFF* input){ - uint16 proc=0; - void* q; - uint32 q_length=0; - void* dc; - uint32 dc_length=0; - void* ac; - uint32 ac_length=0; - uint16* lp; - uint16* pt; - uint16 h_samp=1; - uint16 v_samp=1; - unsigned char* ojpegdata; - uint16 table_count; - uint32 offset_table; - uint32 offset_ms_l; - uint32 code_count; - uint32 i=0; - uint32 dest=0; - uint16 ri=0; - uint32 rows=0; - - if(!TIFFGetField(input, TIFFTAG_JPEGPROC, &proc)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGProc field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(proc!=JPEGPROC_BASELINE && proc!=JPEGPROC_LOSSLESS){ - TIFFError(TIFF2PDF_MODULE, - "Bad JPEGProc field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(!TIFFGetField(input, TIFFTAG_JPEGQTABLES, &q_length, &q)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGQTables field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(q_length < (64U * t2p->tiff_samplesperpixel)){ - TIFFError(TIFF2PDF_MODULE, - "Bad JPEGQTables field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(!TIFFGetField(input, TIFFTAG_JPEGDCTABLES, &dc_length, &dc)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGDCTables field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(proc==JPEGPROC_BASELINE){ - if(!TIFFGetField(input, TIFFTAG_JPEGACTABLES, &ac_length, &ac)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGACTables field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - } else { - if(!TIFFGetField(input, TIFFTAG_JPEGLOSSLESSPREDICTORS, &lp)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGLosslessPredictors field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - if(!TIFFGetField(input, TIFFTAG_JPEGPOINTTRANSFORM, &pt)){ - TIFFError(TIFF2PDF_MODULE, - "Missing JPEGPointTransform field in OJPEG image %s", - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - } - if(!TIFFGetField(input, TIFFTAG_YCBCRSUBSAMPLING, &h_samp, &v_samp)){ - h_samp=1; - v_samp=1; - } - if(t2p->pdf_ojpegdata != NULL){ - _TIFFfree(t2p->pdf_ojpegdata); - t2p->pdf_ojpegdata=NULL; - } - t2p->pdf_ojpegdata = _TIFFmalloc(2048); - if(t2p->pdf_ojpegdata == NULL){ - TIFFError(TIFF2PDF_MODULE, - "Can't allocate %u bytes of memory for t2p_process_ojpeg_tables, %s", - 2048, - TIFFFileName(input)); - t2p->t2p_error = T2P_ERR_ERROR; - return(0); - } - _TIFFmemset(t2p->pdf_ojpegdata, 0x00, 2048); - t2p->pdf_ojpegdatalength = 0; - table_count=t2p->tiff_samplesperpixel; - if(proc==JPEGPROC_BASELINE){ - if(table_count>2) table_count=2; - } - ojpegdata=(unsigned char*)t2p->pdf_ojpegdata; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xd8; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xff; - if(proc==JPEGPROC_BASELINE){ - ojpegdata[t2p->pdf_ojpegdatalength++]=0xc0; - } else { - ojpegdata[t2p->pdf_ojpegdatalength++]=0xc3; - } - ojpegdata[t2p->pdf_ojpegdatalength++]=0x00; - ojpegdata[t2p->pdf_ojpegdatalength++]=(8 + 3*t2p->tiff_samplesperpixel); - ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_bitspersample & 0xff); - if(TIFFIsTiled(input)){ - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength >> 8) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength ) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth >> 8) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth ) & 0xff; - } else { - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_length >> 8) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_length ) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_width >> 8) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= - (t2p->tiff_width ) & 0xff; - } - ojpegdata[t2p->pdf_ojpegdatalength++]=(t2p->tiff_samplesperpixel & 0xff); - for(i=0;itiff_samplesperpixel;i++){ - ojpegdata[t2p->pdf_ojpegdatalength++]=i; - if(i==0){ - ojpegdata[t2p->pdf_ojpegdatalength] |= h_samp<<4 & 0xf0;; - ojpegdata[t2p->pdf_ojpegdatalength++] |= v_samp & 0x0f; - } else { - ojpegdata[t2p->pdf_ojpegdatalength++]= 0x11; - } - ojpegdata[t2p->pdf_ojpegdatalength++]=i; - } - for(dest=0;desttiff_samplesperpixel;dest++){ - ojpegdata[t2p->pdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xdb; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x00; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x43; - ojpegdata[t2p->pdf_ojpegdatalength++]=dest; - _TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength++]), - &(((unsigned char*)q)[64*dest]), 64); - t2p->pdf_ojpegdatalength+=64; - } - offset_table=0; - for(dest=0;destpdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4; - offset_ms_l=t2p->pdf_ojpegdatalength; - t2p->pdf_ojpegdatalength+=2; - ojpegdata[t2p->pdf_ojpegdatalength++]=dest & 0x0f; - _TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), - &(((unsigned char*)dc)[offset_table]), 16); - code_count=0; - offset_table+=16; - for(i=0;i<16;i++){ - code_count+=ojpegdata[t2p->pdf_ojpegdatalength++]; - } - ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff; - ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff; - _TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), - &(((unsigned char*)dc)[offset_table]), code_count); - offset_table+=code_count; - t2p->pdf_ojpegdatalength+=code_count; - } - if(proc==JPEGPROC_BASELINE){ - offset_table=0; - for(dest=0;destpdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xc4; - offset_ms_l=t2p->pdf_ojpegdatalength; - t2p->pdf_ojpegdatalength+=2; - ojpegdata[t2p->pdf_ojpegdatalength] |= 0x10; - ojpegdata[t2p->pdf_ojpegdatalength++] |=dest & 0x0f; - _TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), - &(((unsigned char*)ac)[offset_table]), 16); - code_count=0; - offset_table+=16; - for(i=0;i<16;i++){ - code_count+=ojpegdata[t2p->pdf_ojpegdatalength++]; - } - ojpegdata[offset_ms_l]=((19+code_count)>>8) & 0xff; - ojpegdata[offset_ms_l+1]=(19+code_count) & 0xff; - _TIFFmemcpy( &(ojpegdata[t2p->pdf_ojpegdatalength]), - &(((unsigned char*)ac)[offset_table]), code_count); - offset_table+=code_count; - t2p->pdf_ojpegdatalength+=code_count; - } - } - if(TIFFNumberOfStrips(input)>1){ - ojpegdata[t2p->pdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xdd; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x00; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x04; - h_samp*=8; - v_samp*=8; - ri=(t2p->tiff_width+h_samp-1) / h_samp; - TIFFGetField(input, TIFFTAG_ROWSPERSTRIP, &rows); - ri*=(rows+v_samp-1)/v_samp; - ojpegdata[t2p->pdf_ojpegdatalength++]= (ri>>8) & 0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]= ri & 0xff; - } - ojpegdata[t2p->pdf_ojpegdatalength++]=0xff; - ojpegdata[t2p->pdf_ojpegdatalength++]=0xda; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x00; - ojpegdata[t2p->pdf_ojpegdatalength++]=(6 + 2*t2p->tiff_samplesperpixel); - ojpegdata[t2p->pdf_ojpegdatalength++]=t2p->tiff_samplesperpixel & 0xff; - for(i=0;itiff_samplesperpixel;i++){ - ojpegdata[t2p->pdf_ojpegdatalength++]= i & 0xff; - if(proc==JPEGPROC_BASELINE){ - ojpegdata[t2p->pdf_ojpegdatalength] |= - ( ( (i>(table_count-1U)) ? (table_count-1U) : i) << 4U) & 0xf0; - ojpegdata[t2p->pdf_ojpegdatalength++] |= - ( (i>(table_count-1U)) ? (table_count-1U) : i) & 0x0f; - } else { - ojpegdata[t2p->pdf_ojpegdatalength++] = (i << 4) & 0xf0; - } - } - if(proc==JPEGPROC_BASELINE){ - t2p->pdf_ojpegdatalength++; - ojpegdata[t2p->pdf_ojpegdatalength++]=0x3f; - t2p->pdf_ojpegdatalength++; - } else { - ojpegdata[t2p->pdf_ojpegdatalength++]= (lp[0] & 0xff); - t2p->pdf_ojpegdatalength++; - ojpegdata[t2p->pdf_ojpegdatalength++]= (pt[0] & 0x0f); - } - - return(1); -} -#endif - -#ifdef JPEG_SUPPORT -int t2p_process_jpeg_strip( - unsigned char* strip, - tsize_t* striplength, - unsigned char* buffer, - tsize_t* bufferoffset, - tstrip_t no, - uint32 height){ - - tsize_t i=0; - - while (i < *striplength) { - tsize_t datalen; - uint16 ri; - uint16 v_samp; - uint16 h_samp; - int j; - int ncomp; - - /* marker header: one or more FFs */ - if (strip[i] != 0xff) - return(0); - i++; - while (i < *striplength && strip[i] == 0xff) - i++; - if (i >= *striplength) - return(0); - /* SOI is the only pre-SOS marker without a length word */ - if (strip[i] == 0xd8) - datalen = 0; - else { - if ((*striplength - i) <= 2) - return(0); - datalen = (strip[i+1] << 8) | strip[i+2]; - if (datalen < 2 || datalen >= (*striplength - i)) - return(0); - } - switch( strip[i] ){ - case 0xd8: /* SOI - start of image */ - _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2); - *bufferoffset+=2; - break; - case 0xc0: /* SOF0 */ - case 0xc1: /* SOF1 */ - case 0xc3: /* SOF3 */ - case 0xc9: /* SOF9 */ - case 0xca: /* SOF10 */ - if(no==0){ - _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); - ncomp = buffer[*bufferoffset+9]; - if (ncomp < 1 || ncomp > 4) - return(0); - v_samp=1; - h_samp=1; - for(j=0;j>4) > h_samp) - h_samp = (samp>>4); - if( (samp & 0x0f) > v_samp) - v_samp = (samp & 0x0f); - } - v_samp*=8; - h_samp*=8; - ri=((( ((uint16)(buffer[*bufferoffset+5])<<8) | - (uint16)(buffer[*bufferoffset+6]) )+v_samp-1)/ - v_samp); - ri*=((( ((uint16)(buffer[*bufferoffset+7])<<8) | - (uint16)(buffer[*bufferoffset+8]) )+h_samp-1)/ - h_samp); - buffer[*bufferoffset+5]= - (unsigned char) ((height>>8) & 0xff); - buffer[*bufferoffset+6]= - (unsigned char) (height & 0xff); - *bufferoffset+=datalen+2; - /* insert a DRI marker */ - buffer[(*bufferoffset)++]=0xff; - buffer[(*bufferoffset)++]=0xdd; - buffer[(*bufferoffset)++]=0x00; - buffer[(*bufferoffset)++]=0x04; - buffer[(*bufferoffset)++]=(ri >> 8) & 0xff; - buffer[(*bufferoffset)++]= ri & 0xff; - } - break; - case 0xc4: /* DHT */ - case 0xdb: /* DQT */ - _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); - *bufferoffset+=datalen+2; - break; - case 0xda: /* SOS */ - if(no==0){ - _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); - *bufferoffset+=datalen+2; - } else { - buffer[(*bufferoffset)++]=0xff; - buffer[(*bufferoffset)++]= - (unsigned char)(0xd0 | ((no-1)%8)); - } - i += datalen + 1; - /* copy remainder of strip */ - _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i); - *bufferoffset+= *striplength - i; - return(1); - default: - /* ignore any other marker */ - break; - } - i += datalen + 1; - } - - /* failed to find SOS marker */ - return(0); -} -#endif - -/* - This functions converts a tilewidth x tilelength buffer of samples into an edgetilewidth x - tilelength buffer of samples. -*/ -void t2p_tile_collapse_left( - tdata_t buffer, - tsize_t scanwidth, - uint32 tilewidth, - uint32 edgetilewidth, - uint32 tilelength){ - - uint32 i; - tsize_t edgescanwidth=0; - - edgescanwidth = (scanwidth * edgetilewidth + (tilewidth - 1))/ tilewidth; - for(i=0;it2p_error = T2P_ERR_ERROR; - return; - } - t2p_enable(output); - return; -} - -tsize_t t2p_sample_planar_separate_to_contig( - T2P* t2p, - unsigned char* buffer, - unsigned char* samplebuffer, - tsize_t samplebuffersize){ - - tsize_t stride=0; - tsize_t i=0; - tsize_t j=0; - - stride=samplebuffersize/t2p->tiff_samplesperpixel; - for(i=0;itiff_samplesperpixel;j++){ - buffer[i*t2p->tiff_samplesperpixel + j] = samplebuffer[i + j*stride]; - } - } - - return(samplebuffersize); -} - -tsize_t t2p_sample_realize_palette(T2P* t2p, unsigned char* buffer){ - - uint32 sample_count=0; - uint16 component_count=0; - uint32 palette_offset=0; - uint32 sample_offset=0; - uint32 i=0; - uint32 j=0; - sample_count=t2p->tiff_width*t2p->tiff_length; - component_count=t2p->tiff_samplesperpixel; - - for(i=sample_count;i>0;i--){ - palette_offset=buffer[i-1] * component_count; - sample_offset= (i-1) * component_count; - for(j=0;jpdf_palette[palette_offset+j]; - } - } - - return(0); -} - -/* - This functions converts in place a buffer of ABGR interleaved data - into RGB interleaved data, discarding A. -*/ - -tsize_t t2p_sample_abgr_to_rgb(tdata_t data, uint32 samplecount) -{ - uint32 i=0; - uint32 sample=0; - - for(i=0;i>8) & 0xff); - ((char*)data)[i*3+2]= (char) ((sample>>16) & 0xff); - } - - return(i*3); -} - -/* - * This functions converts in place a buffer of RGBA interleaved data - * into RGB interleaved data, discarding A. - */ - -tsize_t -t2p_sample_rgbaa_to_rgb(tdata_t data, uint32 samplecount) -{ - uint32 i; - - for(i = 0; i < samplecount; i++) - memcpy((uint8*)data + i * 3, (uint8*)data + i * 4, 3); - - return(i * 3); -} - -/* - * This functions converts in place a buffer of RGBA interleaved data - * into RGB interleaved data, adding 255-A to each component sample. - */ - -tsize_t -t2p_sample_rgba_to_rgb(tdata_t data, uint32 samplecount) -{ - uint32 i = 0; - uint32 sample = 0; - uint8 alpha = 0; - - for (i = 0; i < samplecount; i++) { - sample=((uint32*)data)[i]; - alpha=(uint8)((255 - ((sample >> 24) & 0xff))); - ((uint8 *)data)[i * 3] = (uint8) ((sample >> 16) & 0xff) + alpha; - ((uint8 *)data)[i * 3 + 1] = (uint8) ((sample >> 8) & 0xff) + alpha; - ((uint8 *)data)[i * 3 + 2] = (uint8) (sample & 0xff) + alpha; - } - - return (i * 3); -} - -/* - This function converts the a and b samples of Lab data from signed - to unsigned. -*/ - -tsize_t t2p_sample_lab_signed_to_unsigned(tdata_t buffer, uint32 samplecount){ - - uint32 i=0; - - for(i=0;ipdf_majorversion&0xff, - t2p->pdf_minorversion&0xff); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t)"\n%\342\343\317\323\n", 7); - - return(written); -} - -/* - This function writes the beginning of a PDF object to output. -*/ - -tsize_t t2p_write_pdf_obj_start(uint32 number, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)number); - written += t2pWriteFile(output, (tdata_t) buffer, buflen ); - written += t2pWriteFile(output, (tdata_t) " 0 obj\n", 7); - - return(written); -} - -/* - This function writes the end of a PDF object to output. -*/ - -tsize_t t2p_write_pdf_obj_end(TIFF* output){ - - tsize_t written=0; - - written += t2pWriteFile(output, (tdata_t) "endobj\n", 7); - - return(written); -} - -/* - This function writes a PDF name object to output. -*/ - -tsize_t t2p_write_pdf_name(unsigned char* name, TIFF* output){ - - tsize_t written=0; - uint32 i=0; - char buffer[64]; - uint16 nextchar=0; - size_t namelen=0; - - namelen = strlen((char *)name); - if (namelen>126) { - namelen=126; - } - written += t2pWriteFile(output, (tdata_t) "/", 1); - for (i=0;i 0x7E){ - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - nextchar=1; - } - if (nextchar==0){ - switch (name[i]){ - case 0x23: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x25: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x28: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x29: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x2F: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x3C: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x3E: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x5B: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x5D: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x7B: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - case 0x7D: - snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); - buffer[sizeof(buffer) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) buffer, 3); - break; - default: - written += t2pWriteFile(output, (tdata_t) &name[i], 1); - } - } - nextchar=0; - } - written += t2pWriteFile(output, (tdata_t) " ", 1); - - return(written); -} - -/* - * This function writes a PDF string object to output. - */ - -tsize_t t2p_write_pdf_string(char* pdfstr, TIFF* output) -{ - tsize_t written = 0; - uint32 i = 0; - char buffer[64]; - size_t len = 0; - - len = strlen(pdfstr); - written += t2pWriteFile(output, (tdata_t) "(", 1); - for (i=0; i>\n", 4); - - return(written); -} - -/* - This function writes a number to output. -*/ - -tsize_t t2p_write_pdf_stream_length(tsize_t len, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)len); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - - return(written); -} - -/* - * This function writes the PDF Catalog structure to output. - */ - -tsize_t t2p_write_pdf_catalog(T2P* t2p, TIFF* output) -{ - tsize_t written = 0; - char buffer[32]; - int buflen = 0; - - written += t2pWriteFile(output, - (tdata_t)"<< \n/Type /Catalog \n/Pages ", - 27); - buflen = snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_pages); - written += t2pWriteFile(output, (tdata_t) buffer, - TIFFmin((size_t)buflen, sizeof(buffer) - 1)); - written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6); - if(t2p->pdf_fitwindow){ - written += t2pWriteFile(output, - (tdata_t) "/ViewerPreferences <>\n", - 39); - } - written += t2pWriteFile(output, (tdata_t)">>\n", 3); - - return(written); -} - -/* - This function writes the PDF Info structure to output. -*/ - -tsize_t t2p_write_pdf_info(T2P* t2p, TIFF* input, TIFF* output) -{ - tsize_t written = 0; - char* info; - char buffer[512]; - - if(t2p->pdf_datetime[0] == '\0') - t2p_pdf_tifftime(t2p, input); - if (strlen(t2p->pdf_datetime) > 0) { - written += t2pWriteFile(output, (tdata_t) "<< \n/CreationDate ", 18); - written += t2p_write_pdf_string(t2p->pdf_datetime, output); - written += t2pWriteFile(output, (tdata_t) "\n/ModDate ", 10); - written += t2p_write_pdf_string(t2p->pdf_datetime, output); - } - written += t2pWriteFile(output, (tdata_t) "\n/Producer ", 11); - snprintf(buffer, sizeof(buffer), "libtiff / tiff2pdf - %d", TIFFLIB_VERSION); - written += t2p_write_pdf_string(buffer, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - if (t2p->pdf_creator[0] != '\0') { - written += t2pWriteFile(output, (tdata_t) "/Creator ", 9); - written += t2p_write_pdf_string(t2p->pdf_creator, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } else { - if (TIFFGetField(input, TIFFTAG_SOFTWARE, &info) != 0 && info) { - if(strlen(info) >= sizeof(t2p->pdf_creator)) - info[sizeof(t2p->pdf_creator) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) "/Creator ", 9); - written += t2p_write_pdf_string(info, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - } - if (t2p->pdf_author[0] != '\0') { - written += t2pWriteFile(output, (tdata_t) "/Author ", 8); - written += t2p_write_pdf_string(t2p->pdf_author, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } else { - if ((TIFFGetField(input, TIFFTAG_ARTIST, &info) != 0 - || TIFFGetField(input, TIFFTAG_COPYRIGHT, &info) != 0) - && info) { - if (strlen(info) >= sizeof(t2p->pdf_author)) - info[sizeof(t2p->pdf_author) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) "/Author ", 8); - written += t2p_write_pdf_string(info, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - } - if (t2p->pdf_title[0] != '\0') { - written += t2pWriteFile(output, (tdata_t) "/Title ", 7); - written += t2p_write_pdf_string(t2p->pdf_title, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } else { - if (TIFFGetField(input, TIFFTAG_DOCUMENTNAME, &info) != 0){ - if(strlen(info) > 511) { - info[512] = '\0'; - } - written += t2pWriteFile(output, (tdata_t) "/Title ", 7); - written += t2p_write_pdf_string(info, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - } - if (t2p->pdf_subject[0] != '\0') { - written += t2pWriteFile(output, (tdata_t) "/Subject ", 9); - written += t2p_write_pdf_string(t2p->pdf_subject, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } else { - if (TIFFGetField(input, TIFFTAG_IMAGEDESCRIPTION, &info) != 0 && info) { - if (strlen(info) >= sizeof(t2p->pdf_subject)) - info[sizeof(t2p->pdf_subject) - 1] = '\0'; - written += t2pWriteFile(output, (tdata_t) "/Subject ", 9); - written += t2p_write_pdf_string(info, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - } - if (t2p->pdf_keywords[0] != '\0') { - written += t2pWriteFile(output, (tdata_t) "/Keywords ", 10); - written += t2p_write_pdf_string(t2p->pdf_keywords, output); - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - written += t2pWriteFile(output, (tdata_t) ">> \n", 4); - - return(written); -} - -/* - * This function fills a string of a T2P struct with the current time as a PDF - * date string, it is called by t2p_pdf_tifftime. - */ - -void t2p_pdf_currenttime(T2P* t2p) -{ - struct tm* currenttime; - time_t timenow; - - if (time(&timenow) == (time_t) -1) { - TIFFError(TIFF2PDF_MODULE, - "Can't get the current time: %s", strerror(errno)); - timenow = (time_t) 0; - } - - currenttime = localtime(&timenow); - snprintf(t2p->pdf_datetime, sizeof(t2p->pdf_datetime), - "D:%.4d%.2d%.2d%.2d%.2d%.2d", - (currenttime->tm_year + 1900) % 65536, - (currenttime->tm_mon + 1) % 256, - (currenttime->tm_mday) % 256, - (currenttime->tm_hour) % 256, - (currenttime->tm_min) % 256, - (currenttime->tm_sec) % 256); - - return; -} - -/* - * This function fills a string of a T2P struct with the date and time of a - * TIFF file if it exists or the current time as a PDF date string. - */ - -void t2p_pdf_tifftime(T2P* t2p, TIFF* input) -{ - char* datetime; - - if (TIFFGetField(input, TIFFTAG_DATETIME, &datetime) != 0 - && (strlen(datetime) >= 19) ){ - t2p->pdf_datetime[0]='D'; - t2p->pdf_datetime[1]=':'; - t2p->pdf_datetime[2]=datetime[0]; - t2p->pdf_datetime[3]=datetime[1]; - t2p->pdf_datetime[4]=datetime[2]; - t2p->pdf_datetime[5]=datetime[3]; - t2p->pdf_datetime[6]=datetime[5]; - t2p->pdf_datetime[7]=datetime[6]; - t2p->pdf_datetime[8]=datetime[8]; - t2p->pdf_datetime[9]=datetime[9]; - t2p->pdf_datetime[10]=datetime[11]; - t2p->pdf_datetime[11]=datetime[12]; - t2p->pdf_datetime[12]=datetime[14]; - t2p->pdf_datetime[13]=datetime[15]; - t2p->pdf_datetime[14]=datetime[17]; - t2p->pdf_datetime[15]=datetime[18]; - t2p->pdf_datetime[16] = '\0'; - } else { - t2p_pdf_currenttime(t2p); - } - - return; -} - -/* - * This function writes a PDF Pages Tree structure to output. - */ - -tsize_t t2p_write_pdf_pages(T2P* t2p, TIFF* output) -{ - tsize_t written=0; - tdir_t i=0; - char buffer[32]; - int buflen=0; - - int page=0; - written += t2pWriteFile(output, - (tdata_t) "<< \n/Type /Pages \n/Kids [ ", 26); - page = t2p->pdf_pages+1; - for (i=0;itiff_pagecount;i++){ - buflen=snprintf(buffer, sizeof(buffer), "%d", page); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - if ( ((i+1)%8)==0 ) { - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - page +=3; - page += t2p->tiff_pages[i].page_extra; - if(t2p->tiff_pages[i].page_tilecount>0){ - page += (2 * t2p->tiff_pages[i].page_tilecount); - } else { - page +=2; - } - } - written += t2pWriteFile(output, (tdata_t) "] \n/Count ", 10); - buflen=snprintf(buffer, sizeof(buffer), "%d", t2p->tiff_pagecount); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " \n>> \n", 6); - - return(written); -} - -/* - This function writes a PDF Page structure to output. -*/ - -tsize_t t2p_write_pdf_page(uint32 object, T2P* t2p, TIFF* output){ - - unsigned int i=0; - tsize_t written=0; - char buffer[256]; - int buflen=0; - - written += t2pWriteFile(output, (tdata_t) "<<\n/Type /Page \n/Parent ", 24); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_pages); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6); - written += t2pWriteFile(output, (tdata_t) "/MediaBox [", 11); - buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.x1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.y1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.x2); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.y2); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "] \n", 3); - written += t2pWriteFile(output, (tdata_t) "/Contents ", 10); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(object + 1)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6); - written += t2pWriteFile(output, (tdata_t) "/Resources << \n", 15); - if( t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount != 0 ){ - written += t2pWriteFile(output, (tdata_t) "/XObject <<\n", 12); - for(i=0;itiff_tiles[t2p->pdf_page].tiles_tilecount;i++){ - written += t2pWriteFile(output, (tdata_t) "/Im", 3); - buflen = snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "_", 1); - buflen = snprintf(buffer, sizeof(buffer), "%u", i+1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen = snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(object+3+(2*i)+t2p->tiff_pages[t2p->pdf_page].page_extra)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - if(i%4==3){ - written += t2pWriteFile(output, (tdata_t) "\n", 1); - } - } - written += t2pWriteFile(output, (tdata_t) ">>\n", 3); - } else { - written += t2pWriteFile(output, (tdata_t) "/XObject <<\n", 12); - written += t2pWriteFile(output, (tdata_t) "/Im", 3); - buflen = snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen = snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(object+3+(2*i)+t2p->tiff_pages[t2p->pdf_page].page_extra)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - written += t2pWriteFile(output, (tdata_t) ">>\n", 3); - } - if(t2p->tiff_transferfunctioncount != 0) { - written += t2pWriteFile(output, (tdata_t) "/ExtGState <<", 13); - t2pWriteFile(output, (tdata_t) "/GS1 ", 5); - buflen = snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(object + 3)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - written += t2pWriteFile(output, (tdata_t) ">> \n", 4); - } - written += t2pWriteFile(output, (tdata_t) "/ProcSet [ ", 11); - if(t2p->pdf_colorspace & T2P_CS_BILEVEL - || t2p->pdf_colorspace & T2P_CS_GRAY - ){ - written += t2pWriteFile(output, (tdata_t) "/ImageB ", 8); - } else { - written += t2pWriteFile(output, (tdata_t) "/ImageC ", 8); - if(t2p->pdf_colorspace & T2P_CS_PALETTE){ - written += t2pWriteFile(output, (tdata_t) "/ImageI ", 8); - } - } - written += t2pWriteFile(output, (tdata_t) "]\n>>\n>>\n", 8); - - return(written); -} - -/* - This function composes the page size and image and tile locations on a page. -*/ - -void t2p_compose_pdf_page(T2P* t2p){ - - uint32 i=0; - uint32 i2=0; - T2P_TILE* tiles=NULL; - T2P_BOX* boxp=NULL; - uint32 tilecountx=0; - uint32 tilecounty=0; - uint32 tilewidth=0; - uint32 tilelength=0; - int istiled=0; - float f=0; - float width_ratio=0; - float length_ratio=0; - - t2p->pdf_xres = t2p->tiff_xres; - t2p->pdf_yres = t2p->tiff_yres; - if(t2p->pdf_overrideres) { - t2p->pdf_xres = t2p->pdf_defaultxres; - t2p->pdf_yres = t2p->pdf_defaultyres; - } - if(t2p->pdf_xres == 0.0) - t2p->pdf_xres = t2p->pdf_defaultxres; - if(t2p->pdf_yres == 0.0) - t2p->pdf_yres = t2p->pdf_defaultyres; - if (t2p->pdf_image_fillpage) { - width_ratio = t2p->pdf_defaultpagewidth/t2p->tiff_width; - length_ratio = t2p->pdf_defaultpagelength/t2p->tiff_length; - if (width_ratio < length_ratio ) { - t2p->pdf_imagewidth = t2p->pdf_defaultpagewidth; - t2p->pdf_imagelength = t2p->tiff_length * width_ratio; - } else { - t2p->pdf_imagewidth = t2p->tiff_width * length_ratio; - t2p->pdf_imagelength = t2p->pdf_defaultpagelength; - } - } else if (t2p->tiff_resunit != RESUNIT_CENTIMETER /* RESUNIT_NONE and */ - && t2p->tiff_resunit != RESUNIT_INCH) { /* other cases */ - t2p->pdf_imagewidth = ((float)(t2p->tiff_width))/t2p->pdf_xres; - t2p->pdf_imagelength = ((float)(t2p->tiff_length))/t2p->pdf_yres; - } else { - t2p->pdf_imagewidth = - ((float)(t2p->tiff_width))*PS_UNIT_SIZE/t2p->pdf_xres; - t2p->pdf_imagelength = - ((float)(t2p->tiff_length))*PS_UNIT_SIZE/t2p->pdf_yres; - } - if(t2p->pdf_overridepagesize != 0) { - t2p->pdf_pagewidth = t2p->pdf_defaultpagewidth; - t2p->pdf_pagelength = t2p->pdf_defaultpagelength; - } else { - t2p->pdf_pagewidth = t2p->pdf_imagewidth; - t2p->pdf_pagelength = t2p->pdf_imagelength; - } - t2p->pdf_mediabox.x1=0.0; - t2p->pdf_mediabox.y1=0.0; - t2p->pdf_mediabox.x2=t2p->pdf_pagewidth; - t2p->pdf_mediabox.y2=t2p->pdf_pagelength; - t2p->pdf_imagebox.x1=0.0; - t2p->pdf_imagebox.y1=0.0; - t2p->pdf_imagebox.x2=t2p->pdf_imagewidth; - t2p->pdf_imagebox.y2=t2p->pdf_imagelength; - if(t2p->pdf_overridepagesize!=0){ - t2p->pdf_imagebox.x1+=((t2p->pdf_pagewidth-t2p->pdf_imagewidth)/2.0F); - t2p->pdf_imagebox.y1+=((t2p->pdf_pagelength-t2p->pdf_imagelength)/2.0F); - t2p->pdf_imagebox.x2+=((t2p->pdf_pagewidth-t2p->pdf_imagewidth)/2.0F); - t2p->pdf_imagebox.y2+=((t2p->pdf_pagelength-t2p->pdf_imagelength)/2.0F); - } - if(t2p->tiff_orientation > 4){ - f=t2p->pdf_mediabox.x2; - t2p->pdf_mediabox.x2=t2p->pdf_mediabox.y2; - t2p->pdf_mediabox.y2=f; - } - istiled=((t2p->tiff_tiles[t2p->pdf_page]).tiles_tilecount==0) ? 0 : 1; - if(istiled==0){ - t2p_compose_pdf_page_orient(&(t2p->pdf_imagebox), t2p->tiff_orientation); - return; - } else { - tilewidth=(t2p->tiff_tiles[t2p->pdf_page]).tiles_tilewidth; - tilelength=(t2p->tiff_tiles[t2p->pdf_page]).tiles_tilelength; - if( tilewidth > INT_MAX || - tilelength > INT_MAX || - t2p->tiff_width > INT_MAX - tilewidth || - t2p->tiff_length > INT_MAX - tilelength ) - { - TIFFError(TIFF2PDF_MODULE, "Integer overflow"); - t2p->t2p_error = T2P_ERR_ERROR; - return; - } - tilecountx=(t2p->tiff_width + - tilewidth -1)/ - tilewidth; - (t2p->tiff_tiles[t2p->pdf_page]).tiles_tilecountx=tilecountx; - tilecounty=(t2p->tiff_length + - tilelength -1)/ - tilelength; - (t2p->tiff_tiles[t2p->pdf_page]).tiles_tilecounty=tilecounty; - (t2p->tiff_tiles[t2p->pdf_page]).tiles_edgetilewidth= - t2p->tiff_width % tilewidth; - (t2p->tiff_tiles[t2p->pdf_page]).tiles_edgetilelength= - t2p->tiff_length % tilelength; - tiles=(t2p->tiff_tiles[t2p->pdf_page]).tiles_tiles; - for(i2=0;i2x1 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * i * tilewidth) - / (float)t2p->tiff_width); - boxp->x2 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * (i+1) * tilewidth) - / (float)t2p->tiff_width); - boxp->y1 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * (i2+1) * tilelength) - / (float)t2p->tiff_length); - boxp->y2 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * i2 * tilelength) - / (float)t2p->tiff_length); - } - boxp=&(tiles[i2*tilecountx+i].tile_box); - boxp->x1 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * i * tilewidth) - / (float)t2p->tiff_width); - boxp->x2 = t2p->pdf_imagebox.x2; - boxp->y1 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * (i2+1) * tilelength) - / (float)t2p->tiff_length); - boxp->y2 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * i2 * tilelength) - / (float)t2p->tiff_length); - } - for(i=0;ix1 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * i * tilewidth) - / (float)t2p->tiff_width); - boxp->x2 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * (i+1) * tilewidth) - / (float)t2p->tiff_width); - boxp->y1 = t2p->pdf_imagebox.y1; - boxp->y2 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * i2 * tilelength) - / (float)t2p->tiff_length); - } - boxp=&(tiles[i2*tilecountx+i].tile_box); - boxp->x1 = - t2p->pdf_imagebox.x1 - + ((float)(t2p->pdf_imagewidth * i * tilewidth) - / (float)t2p->tiff_width); - boxp->x2 = t2p->pdf_imagebox.x2; - boxp->y1 = t2p->pdf_imagebox.y1; - boxp->y2 = - t2p->pdf_imagebox.y2 - - ((float)(t2p->pdf_imagelength * i2 * tilelength) - / (float)t2p->tiff_length); - } - if(t2p->tiff_orientation==0 || t2p->tiff_orientation==1){ - for(i=0;i<(t2p->tiff_tiles[t2p->pdf_page]).tiles_tilecount;i++){ - t2p_compose_pdf_page_orient( &(tiles[i].tile_box) , 0); - } - return; - } - for(i=0;i<(t2p->tiff_tiles[t2p->pdf_page]).tiles_tilecount;i++){ - boxp=&(tiles[i].tile_box); - boxp->x1 -= t2p->pdf_imagebox.x1; - boxp->x2 -= t2p->pdf_imagebox.x1; - boxp->y1 -= t2p->pdf_imagebox.y1; - boxp->y2 -= t2p->pdf_imagebox.y1; - if(t2p->tiff_orientation==2 || t2p->tiff_orientation==3){ - boxp->x1 = t2p->pdf_imagebox.x2 - t2p->pdf_imagebox.x1 - boxp->x1; - boxp->x2 = t2p->pdf_imagebox.x2 - t2p->pdf_imagebox.x1 - boxp->x2; - } - if(t2p->tiff_orientation==3 || t2p->tiff_orientation==4){ - boxp->y1 = t2p->pdf_imagebox.y2 - t2p->pdf_imagebox.y1 - boxp->y1; - boxp->y2 = t2p->pdf_imagebox.y2 - t2p->pdf_imagebox.y1 - boxp->y2; - } - if(t2p->tiff_orientation==8 || t2p->tiff_orientation==5){ - boxp->y1 = t2p->pdf_imagebox.y2 - t2p->pdf_imagebox.y1 - boxp->y1; - boxp->y2 = t2p->pdf_imagebox.y2 - t2p->pdf_imagebox.y1 - boxp->y2; - } - if(t2p->tiff_orientation==5 || t2p->tiff_orientation==6){ - boxp->x1 = t2p->pdf_imagebox.x2 - t2p->pdf_imagebox.x1 - boxp->x1; - boxp->x2 = t2p->pdf_imagebox.x2 - t2p->pdf_imagebox.x1 - boxp->x2; - } - if(t2p->tiff_orientation > 4){ - f=boxp->x1; - boxp->x1 = boxp->y1; - boxp->y1 = f; - f=boxp->x2; - boxp->x2 = boxp->y2; - boxp->y2 = f; - t2p_compose_pdf_page_orient_flip(boxp, t2p->tiff_orientation); - } else { - t2p_compose_pdf_page_orient(boxp, t2p->tiff_orientation); - } - - } - - return; -} - -void t2p_compose_pdf_page_orient(T2P_BOX* boxp, uint16 orientation){ - - float m1[9]; - float f=0.0; - - if( boxp->x1 > boxp->x2){ - f=boxp->x1; - boxp->x1=boxp->x2; - boxp->x2 = f; - } - if( boxp->y1 > boxp->y2){ - f=boxp->y1; - boxp->y1=boxp->y2; - boxp->y2 = f; - } - boxp->mat[0]=m1[0]=boxp->x2-boxp->x1; - boxp->mat[1]=m1[1]=0.0; - boxp->mat[2]=m1[2]=0.0; - boxp->mat[3]=m1[3]=0.0; - boxp->mat[4]=m1[4]=boxp->y2-boxp->y1; - boxp->mat[5]=m1[5]=0.0; - boxp->mat[6]=m1[6]=boxp->x1; - boxp->mat[7]=m1[7]=boxp->y1; - boxp->mat[8]=m1[8]=1.0; - switch(orientation){ - case 0: - case 1: - break; - case 2: - boxp->mat[0]=0.0F-m1[0]; - boxp->mat[6]+=m1[0]; - break; - case 3: - boxp->mat[0]=0.0F-m1[0]; - boxp->mat[4]=0.0F-m1[4]; - boxp->mat[6]+=m1[0]; - boxp->mat[7]+=m1[4]; - break; - case 4: - boxp->mat[4]=0.0F-m1[4]; - boxp->mat[7]+=m1[4]; - break; - case 5: - boxp->mat[0]=0.0F; - boxp->mat[1]=0.0F-m1[0]; - boxp->mat[3]=0.0F-m1[4]; - boxp->mat[4]=0.0F; - boxp->mat[6]+=m1[4]; - boxp->mat[7]+=m1[0]; - break; - case 6: - boxp->mat[0]=0.0F; - boxp->mat[1]=0.0F-m1[0]; - boxp->mat[3]=m1[4]; - boxp->mat[4]=0.0F; - boxp->mat[7]+=m1[0]; - break; - case 7: - boxp->mat[0]=0.0F; - boxp->mat[1]=m1[0]; - boxp->mat[3]=m1[4]; - boxp->mat[4]=0.0F; - break; - case 8: - boxp->mat[0]=0.0F; - boxp->mat[1]=m1[0]; - boxp->mat[3]=0.0F-m1[4]; - boxp->mat[4]=0.0F; - boxp->mat[6]+=m1[4]; - break; - } - - return; -} - -void t2p_compose_pdf_page_orient_flip(T2P_BOX* boxp, uint16 orientation){ - - float m1[9]; - float f=0.0; - - if( boxp->x1 > boxp->x2){ - f=boxp->x1; - boxp->x1=boxp->x2; - boxp->x2 = f; - } - if( boxp->y1 > boxp->y2){ - f=boxp->y1; - boxp->y1=boxp->y2; - boxp->y2 = f; - } - boxp->mat[0]=m1[0]=boxp->x2-boxp->x1; - boxp->mat[1]=m1[1]=0.0F; - boxp->mat[2]=m1[2]=0.0F; - boxp->mat[3]=m1[3]=0.0F; - boxp->mat[4]=m1[4]=boxp->y2-boxp->y1; - boxp->mat[5]=m1[5]=0.0F; - boxp->mat[6]=m1[6]=boxp->x1; - boxp->mat[7]=m1[7]=boxp->y1; - boxp->mat[8]=m1[8]=1.0F; - switch(orientation){ - case 5: - boxp->mat[0]=0.0F; - boxp->mat[1]=0.0F-m1[4]; - boxp->mat[3]=0.0F-m1[0]; - boxp->mat[4]=0.0F; - boxp->mat[6]+=m1[0]; - boxp->mat[7]+=m1[4]; - break; - case 6: - boxp->mat[0]=0.0F; - boxp->mat[1]=0.0F-m1[4]; - boxp->mat[3]=m1[0]; - boxp->mat[4]=0.0F; - boxp->mat[7]+=m1[4]; - break; - case 7: - boxp->mat[0]=0.0F; - boxp->mat[1]=m1[4]; - boxp->mat[3]=m1[0]; - boxp->mat[4]=0.0F; - break; - case 8: - boxp->mat[0]=0.0F; - boxp->mat[1]=m1[4]; - boxp->mat[3]=0.0F-m1[0]; - boxp->mat[4]=0.0F; - boxp->mat[6]+=m1[0]; - break; - } - - return; -} - -/* - This function writes a PDF Contents stream to output. -*/ - -tsize_t t2p_write_pdf_page_content_stream(T2P* t2p, TIFF* output){ - - tsize_t written=0; - ttile_t i=0; - char buffer[512]; - int buflen=0; - T2P_BOX box; - - if(t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount>0){ - for(i=0;itiff_tiles[t2p->pdf_page].tiles_tilecount; i++){ - box=t2p->tiff_tiles[t2p->pdf_page].tiles_tiles[i].tile_box; - buflen=snprintf(buffer, sizeof(buffer), - "q %s %.4f %.4f %.4f %.4f %.4f %.4f cm /Im%d_%ld Do Q\n", - t2p->tiff_transferfunctioncount?"/GS1 gs ":"", - box.mat[0], - box.mat[1], - box.mat[3], - box.mat[4], - box.mat[6], - box.mat[7], - t2p->pdf_page + 1, - (long)(i + 1)); - written += t2p_write_pdf_stream(buffer, buflen, output); - } - } else { - box=t2p->pdf_imagebox; - buflen=snprintf(buffer, sizeof(buffer), - "q %s %.4f %.4f %.4f %.4f %.4f %.4f cm /Im%d Do Q\n", - t2p->tiff_transferfunctioncount?"/GS1 gs ":"", - box.mat[0], - box.mat[1], - box.mat[3], - box.mat[4], - box.mat[6], - box.mat[7], - t2p->pdf_page+1); - written += t2p_write_pdf_stream(buffer, buflen, output); - } - - return(written); -} - -/* - This function writes a PDF Image XObject stream dictionary to output. -*/ - -tsize_t t2p_write_pdf_xobject_stream_dict(ttile_t tile, - T2P* t2p, - TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - written += t2p_write_pdf_stream_dict(0, t2p->pdf_xrefcount+1, output); - written += t2pWriteFile(output, - (tdata_t) "/Type /XObject \n/Subtype /Image \n/Name /Im", - 42); - buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - if(tile != 0){ - written += t2pWriteFile(output, (tdata_t) "_", 1); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)tile); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } - written += t2pWriteFile(output, (tdata_t) "\n/Width ", 8); - if(tile==0){ - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->tiff_width); - } else { - if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)!=0){ - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth); - } else { - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth); - } - } - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n/Height ", 9); - if(tile==0){ - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->tiff_length); - } else { - if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)!=0){ - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength); - } else { - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - } - } - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n/BitsPerComponent ", 19); - buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_bitspersample); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n/ColorSpace ", 13); - written += t2p_write_pdf_xobject_cs(t2p, output); - if (t2p->pdf_image_interpolate) - written += t2pWriteFile(output, - (tdata_t) "\n/Interpolate true", 18); - if( (t2p->pdf_switchdecode != 0) -#ifdef CCITT_SUPPORT - && ! (t2p->pdf_colorspace & T2P_CS_BILEVEL - && t2p->pdf_compression == T2P_COMPRESS_G4) -#endif - ){ - written += t2p_write_pdf_xobject_decode(t2p, output); - } - written += t2p_write_pdf_xobject_stream_filter(tile, t2p, output); - - return(written); -} - -/* - * This function writes a PDF Image XObject Colorspace name to output. - */ - - -tsize_t t2p_write_pdf_xobject_cs(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[128]; - int buflen=0; - - float X_W=1.0; - float Y_W=1.0; - float Z_W=1.0; - - if( (t2p->pdf_colorspace & T2P_CS_ICCBASED) != 0){ - written += t2p_write_pdf_xobject_icccs(t2p, output); - return(written); - } - if( (t2p->pdf_colorspace & T2P_CS_PALETTE) != 0){ - written += t2pWriteFile(output, (tdata_t) "[ /Indexed ", 11); - t2p->pdf_colorspace ^= T2P_CS_PALETTE; - written += t2p_write_pdf_xobject_cs(t2p, output); - t2p->pdf_colorspace |= T2P_CS_PALETTE; - buflen=snprintf(buffer, sizeof(buffer), "%u", (0x0001 << t2p->tiff_bitspersample)-1 ); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " ", 1); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_palettecs ); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ]\n", 7); - return(written); - } - if(t2p->pdf_colorspace & T2P_CS_BILEVEL){ - written += t2pWriteFile(output, (tdata_t) "/DeviceGray \n", 13); - } - if(t2p->pdf_colorspace & T2P_CS_GRAY){ - if(t2p->pdf_colorspace & T2P_CS_CALGRAY){ - written += t2p_write_pdf_xobject_calcs(t2p, output); - } else { - written += t2pWriteFile(output, (tdata_t) "/DeviceGray \n", 13); - } - } - if(t2p->pdf_colorspace & T2P_CS_RGB){ - if(t2p->pdf_colorspace & T2P_CS_CALRGB){ - written += t2p_write_pdf_xobject_calcs(t2p, output); - } else { - written += t2pWriteFile(output, (tdata_t) "/DeviceRGB \n", 12); - } - } - if(t2p->pdf_colorspace & T2P_CS_CMYK){ - written += t2pWriteFile(output, (tdata_t) "/DeviceCMYK \n", 13); - } - if(t2p->pdf_colorspace & T2P_CS_LAB){ - written += t2pWriteFile(output, (tdata_t) "[/Lab << \n", 10); - written += t2pWriteFile(output, (tdata_t) "/WhitePoint ", 12); - X_W = t2p->tiff_whitechromaticities[0]; - Y_W = t2p->tiff_whitechromaticities[1]; - Z_W = 1.0F - (X_W + Y_W); - X_W /= Y_W; - Z_W /= Y_W; - Y_W = 1.0F; - buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/Range ", 7); - buflen=snprintf(buffer, sizeof(buffer), "[%d %d %d %d] \n", - t2p->pdf_labrange[0], - t2p->pdf_labrange[1], - t2p->pdf_labrange[2], - t2p->pdf_labrange[3]); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) ">>] \n", 5); - - } - - return(written); -} - -tsize_t t2p_write_pdf_transfer(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - written += t2pWriteFile(output, (tdata_t) "<< /Type /ExtGState \n/TR ", 25); - if(t2p->tiff_transferfunctioncount == 1){ - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(t2p->pdf_xrefcount + 1)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - } else { - written += t2pWriteFile(output, (tdata_t) "[ ", 2); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(t2p->pdf_xrefcount + 1)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(t2p->pdf_xrefcount + 2)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)(t2p->pdf_xrefcount + 3)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R ", 5); - written += t2pWriteFile(output, (tdata_t) "/Identity ] ", 12); - } - - written += t2pWriteFile(output, (tdata_t) " >> \n", 5); - - return(written); -} - -tsize_t t2p_write_pdf_transfer_dict(T2P* t2p, TIFF* output, uint16 i){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - (void)i; /* XXX */ - - written += t2pWriteFile(output, (tdata_t) "/FunctionType 0 \n", 17); - written += t2pWriteFile(output, (tdata_t) "/Domain [0.0 1.0] \n", 19); - written += t2pWriteFile(output, (tdata_t) "/Range [0.0 1.0] \n", 18); - buflen=snprintf(buffer, sizeof(buffer), "/Size [%u] \n", (1<tiff_bitspersample)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/BitsPerSample 16 \n", 19); - written += t2p_write_pdf_stream_dict(((tsize_t)1)<<(t2p->tiff_bitspersample+1), 0, output); - - return(written); -} - -tsize_t t2p_write_pdf_transfer_stream(T2P* t2p, TIFF* output, uint16 i){ - - tsize_t written=0; - - written += t2p_write_pdf_stream( - t2p->tiff_transferfunction[i], - (((tsize_t)1)<<(t2p->tiff_bitspersample+1)), - output); - - return(written); -} - -/* - This function writes a PDF Image XObject Colorspace array to output. -*/ - -tsize_t t2p_write_pdf_xobject_calcs(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[256]; - int buflen=0; - - float X_W=0.0; - float Y_W=0.0; - float Z_W=0.0; - float X_R=0.0; - float Y_R=0.0; - float Z_R=0.0; - float X_G=0.0; - float Y_G=0.0; - float Z_G=0.0; - float X_B=0.0; - float Y_B=0.0; - float Z_B=0.0; - float x_w=0.0; - float y_w=0.0; - float z_w=0.0; - float x_r=0.0; - float y_r=0.0; - float x_g=0.0; - float y_g=0.0; - float x_b=0.0; - float y_b=0.0; - float R=1.0; - float G=1.0; - float B=1.0; - - written += t2pWriteFile(output, (tdata_t) "[", 1); - if(t2p->pdf_colorspace & T2P_CS_CALGRAY){ - written += t2pWriteFile(output, (tdata_t) "/CalGray ", 9); - X_W = t2p->tiff_whitechromaticities[0]; - Y_W = t2p->tiff_whitechromaticities[1]; - Z_W = 1.0F - (X_W + Y_W); - X_W /= Y_W; - Z_W /= Y_W; - Y_W = 1.0F; - } - if(t2p->pdf_colorspace & T2P_CS_CALRGB){ - written += t2pWriteFile(output, (tdata_t) "/CalRGB ", 8); - x_w = t2p->tiff_whitechromaticities[0]; - y_w = t2p->tiff_whitechromaticities[1]; - x_r = t2p->tiff_primarychromaticities[0]; - y_r = t2p->tiff_primarychromaticities[1]; - x_g = t2p->tiff_primarychromaticities[2]; - y_g = t2p->tiff_primarychromaticities[3]; - x_b = t2p->tiff_primarychromaticities[4]; - y_b = t2p->tiff_primarychromaticities[5]; - z_w = y_w * ((x_g - x_b)*y_r - (x_r-x_b)*y_g + (x_r-x_g)*y_b); - Y_R = (y_r/R) * ((x_g-x_b)*y_w - (x_w-x_b)*y_g + (x_w-x_g)*y_b) / z_w; - X_R = Y_R * x_r / y_r; - Z_R = Y_R * (((1-x_r)/y_r)-1); - Y_G = ((0.0F-(y_g))/G) * ((x_r-x_b)*y_w - (x_w-x_b)*y_r + (x_w-x_r)*y_b) / z_w; - X_G = Y_G * x_g / y_g; - Z_G = Y_G * (((1-x_g)/y_g)-1); - Y_B = (y_b/B) * ((x_r-x_g)*y_w - (x_w-x_g)*y_r + (x_w-x_r)*y_g) / z_w; - X_B = Y_B * x_b / y_b; - Z_B = Y_B * (((1-x_b)/y_b)-1); - X_W = (X_R * R) + (X_G * G) + (X_B * B); - Y_W = (Y_R * R) + (Y_G * G) + (Y_B * B); - Z_W = (Z_R * R) + (Z_G * G) + (Z_B * B); - X_W /= Y_W; - Z_W /= Y_W; - Y_W = 1.0; - } - written += t2pWriteFile(output, (tdata_t) "<< \n", 4); - if(t2p->pdf_colorspace & T2P_CS_CALGRAY){ - written += t2pWriteFile(output, (tdata_t) "/WhitePoint ", 12); - buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/Gamma 2.2 \n", 12); - } - if(t2p->pdf_colorspace & T2P_CS_CALRGB){ - written += t2pWriteFile(output, (tdata_t) "/WhitePoint ", 12); - buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/Matrix ", 8); - buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f] \n", - X_R, Y_R, Z_R, - X_G, Y_G, Z_G, - X_B, Y_B, Z_B); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/Gamma [2.2 2.2 2.2] \n", 22); - } - written += t2pWriteFile(output, (tdata_t) ">>] \n", 5); - - return(written); -} - -/* - This function writes a PDF Image XObject Colorspace array to output. -*/ - -tsize_t t2p_write_pdf_xobject_icccs(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - written += t2pWriteFile(output, (tdata_t) "[/ICCBased ", 11); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_icccs); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R] \n", 7); - - return(written); -} - -tsize_t t2p_write_pdf_xobject_icccs_dict(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - written += t2pWriteFile(output, (tdata_t) "/N ", 3); - buflen=snprintf(buffer, sizeof(buffer), "%u \n", t2p->tiff_samplesperpixel); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "/Alternate ", 11); - t2p->pdf_colorspace ^= T2P_CS_ICCBASED; - written += t2p_write_pdf_xobject_cs(t2p, output); - t2p->pdf_colorspace |= T2P_CS_ICCBASED; - written += t2p_write_pdf_stream_dict(t2p->tiff_iccprofilelength, 0, output); - - return(written); -} - -tsize_t t2p_write_pdf_xobject_icccs_stream(T2P* t2p, TIFF* output){ - - tsize_t written=0; - - written += t2p_write_pdf_stream( - (tdata_t) t2p->tiff_iccprofile, - (tsize_t) t2p->tiff_iccprofilelength, - output); - - return(written); -} - -/* - This function writes a palette stream for an indexed color space to output. -*/ - -tsize_t t2p_write_pdf_xobject_palettecs_stream(T2P* t2p, TIFF* output){ - - tsize_t written=0; - - written += t2p_write_pdf_stream( - (tdata_t) t2p->pdf_palette, - (tsize_t) t2p->pdf_palettesize, - output); - - return(written); -} - -/* - This function writes a PDF Image XObject Decode array to output. -*/ - -tsize_t t2p_write_pdf_xobject_decode(T2P* t2p, TIFF* output){ - - tsize_t written=0; - int i=0; - - written += t2pWriteFile(output, (tdata_t) "/Decode [ ", 10); - for (i=0;itiff_samplesperpixel;i++){ - written += t2pWriteFile(output, (tdata_t) "1 0 ", 4); - } - written += t2pWriteFile(output, (tdata_t) "]\n", 2); - - return(written); -} - -/* - This function writes a PDF Image XObject stream filter name and parameters to - output. -*/ - -tsize_t t2p_write_pdf_xobject_stream_filter(ttile_t tile, T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[32]; - int buflen=0; - - if(t2p->pdf_compression==T2P_COMPRESS_NONE){ - return(written); - } - written += t2pWriteFile(output, (tdata_t) "/Filter ", 8); - switch(t2p->pdf_compression){ -#ifdef CCITT_SUPPORT - case T2P_COMPRESS_G4: - written += t2pWriteFile(output, (tdata_t) "/CCITTFaxDecode ", 16); - written += t2pWriteFile(output, (tdata_t) "/DecodeParms ", 13); - written += t2pWriteFile(output, (tdata_t) "<< /K -1 ", 9); - if(tile==0){ - written += t2pWriteFile(output, (tdata_t) "/Columns ", 9); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_width); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " /Rows ", 7); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_length); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } else { - if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)==0){ - written += t2pWriteFile(output, (tdata_t) "/Columns ", 9); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } else { - written += t2pWriteFile(output, (tdata_t) "/Columns ", 9); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } - if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)==0){ - written += t2pWriteFile(output, (tdata_t) " /Rows ", 7); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } else { - written += t2pWriteFile(output, (tdata_t) " /Rows ", 7); - buflen=snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - } - } - if(t2p->pdf_switchdecode == 0){ - written += t2pWriteFile(output, (tdata_t) " /BlackIs1 true ", 16); - } - written += t2pWriteFile(output, (tdata_t) ">>\n", 3); - break; -#endif -#ifdef JPEG_SUPPORT - case T2P_COMPRESS_JPEG: - written += t2pWriteFile(output, (tdata_t) "/DCTDecode ", 11); - - if(t2p->tiff_photometric != PHOTOMETRIC_YCBCR) { - written += t2pWriteFile(output, (tdata_t) "/DecodeParms ", 13); - written += t2pWriteFile(output, (tdata_t) "<< /ColorTransform 0 >>\n", 24); - } - break; -#endif -#ifdef ZIP_SUPPORT - case T2P_COMPRESS_ZIP: - written += t2pWriteFile(output, (tdata_t) "/FlateDecode ", 13); - if(t2p->pdf_compressionquality%100){ - written += t2pWriteFile(output, (tdata_t) "/DecodeParms ", 13); - written += t2pWriteFile(output, (tdata_t) "<< /Predictor ", 14); - buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_compressionquality%100); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " /Columns ", 10); - buflen = snprintf(buffer, sizeof(buffer), "%lu", - (unsigned long)t2p->tiff_width); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " /Colors ", 9); - buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_samplesperpixel); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " /BitsPerComponent ", 19); - buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_bitspersample); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) ">>\n", 3); - } - break; -#endif - default: - break; - } - - return(written); -} - -/* - This function writes a PDF xref table to output. -*/ - -tsize_t t2p_write_pdf_xreftable(T2P* t2p, TIFF* output){ - - tsize_t written=0; - char buffer[64]; - int buflen=0; - uint32 i=0; - - written += t2pWriteFile(output, (tdata_t) "xref\n0 ", 7); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(t2p->pdf_xrefcount + 1)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " \n0000000000 65535 f \n", 22); - for (i=0;ipdf_xrefcount;i++){ - snprintf(buffer, sizeof(buffer), "%.10lu 00000 n \n", - (unsigned long)t2p->pdf_xrefoffsets[i]); - written += t2pWriteFile(output, (tdata_t) buffer, 20); - } - - return(written); -} - -/* - * This function writes a PDF trailer to output. - */ - -tsize_t t2p_write_pdf_trailer(T2P* t2p, TIFF* output) -{ - - tsize_t written = 0; - char buffer[32]; - int buflen = 0; - size_t i = 0; - - for (i = 0; i < sizeof(t2p->pdf_fileid) - 8; i += 8) - snprintf(t2p->pdf_fileid + i, 9, "%.8X", rand()); - - written += t2pWriteFile(output, (tdata_t) "trailer\n<<\n/Size ", 17); - buflen = snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(t2p->pdf_xrefcount+1)); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n/Root ", 7); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_catalog); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R \n/Info ", 12); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_info); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) " 0 R \n/ID[<", 11); - written += t2pWriteFile(output, (tdata_t) t2p->pdf_fileid, - sizeof(t2p->pdf_fileid) - 1); - written += t2pWriteFile(output, (tdata_t) "><", 2); - written += t2pWriteFile(output, (tdata_t) t2p->pdf_fileid, - sizeof(t2p->pdf_fileid) - 1); - written += t2pWriteFile(output, (tdata_t) ">]\n>>\nstartxref\n", 16); - buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_startxref); - written += t2pWriteFile(output, (tdata_t) buffer, buflen); - written += t2pWriteFile(output, (tdata_t) "\n%%EOF\n", 7); - - return(written); -} - -/* - - This function writes a PDF to a file given a pointer to a TIFF. - - The idea with using a TIFF* as output for a PDF file is that the file - can be created with TIFFClientOpen for memory-mapped use within the TIFF - library, and TIFFWriteEncodedStrip can be used to write compressed data to - the output. The output is not actually a TIFF file, it is a PDF file. - - This function uses only t2pWriteFile and TIFFWriteEncodedStrip to write to - the output TIFF file. When libtiff would otherwise be writing data to the - output file, the write procedure of the TIFF structure is replaced with an - empty implementation. - - The first argument to the function is an initialized and validated T2P - context struct pointer. - - The second argument to the function is the TIFF* that is the input that has - been opened for reading and no other functions have been called upon it. - - The third argument to the function is the TIFF* that is the output that has - been opened for writing. It has to be opened so that it hasn't written any - data to the output. If the output is seekable then it's OK to seek to the - beginning of the file. The function only writes to the output PDF and does - not seek. See the example usage in the main() function. - - TIFF* output = TIFFOpen("output.pdf", "w"); - assert(output != NULL); - - if(output->tif_seekproc != NULL){ - t2pSeekFile(output, (toff_t) 0, SEEK_SET); - } - - This function returns the file size of the output PDF file. On error it - returns zero and the t2p->t2p_error variable is set to T2P_ERR_ERROR. - - After this function completes, call t2p_free on t2p, TIFFClose on input, - and TIFFClose on output. -*/ - -tsize_t t2p_write_pdf(T2P* t2p, TIFF* input, TIFF* output){ - - tsize_t written=0; - ttile_t i2=0; - tsize_t streamlen=0; - uint16 i=0; - - t2p_read_tiff_init(t2p, input); - if(t2p->t2p_error!=T2P_ERR_OK){return(0);} - t2p->pdf_xrefoffsets= (uint32*) _TIFFmalloc(TIFFSafeMultiply(tmsize_t,t2p->pdf_xrefcount,sizeof(uint32)) ); - if(t2p->pdf_xrefoffsets==NULL){ - TIFFError( - TIFF2PDF_MODULE, - "Can't allocate %u bytes of memory for t2p_write_pdf", - (unsigned int) (t2p->pdf_xrefcount * sizeof(uint32)) ); - t2p->t2p_error = T2P_ERR_ERROR; - return(written); - } - t2p->pdf_xrefcount=0; - t2p->pdf_catalog=1; - t2p->pdf_info=2; - t2p->pdf_pages=3; - written += t2p_write_pdf_header(t2p, output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - t2p->pdf_catalog=t2p->pdf_xrefcount; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_catalog(t2p, output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - t2p->pdf_info=t2p->pdf_xrefcount; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_info(t2p, input, output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - t2p->pdf_pages=t2p->pdf_xrefcount; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_pages(t2p, output); - written += t2p_write_pdf_obj_end(output); - for(t2p->pdf_page=0;t2p->pdf_pagetiff_pagecount;t2p->pdf_page++){ - t2p_read_tiff_data(t2p, input); - if(t2p->t2p_error!=T2P_ERR_OK){return(0);} - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_page(t2p->pdf_xrefcount, t2p, output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_stream_dict(0, t2p->pdf_xrefcount+1, output); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - written += t2p_write_pdf_page_content_stream(t2p, output); - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_length(streamlen, output); - written += t2p_write_pdf_obj_end(output); - if(t2p->tiff_transferfunctioncount != 0){ - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_transfer(t2p, output); - written += t2p_write_pdf_obj_end(output); - for(i=0; i < t2p->tiff_transferfunctioncount; i++){ - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_transfer_dict(t2p, output, i); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - written += t2p_write_pdf_transfer_stream(t2p, output, i); - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - } - } - if( (t2p->pdf_colorspace & T2P_CS_PALETTE) != 0){ - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - t2p->pdf_palettecs=t2p->pdf_xrefcount; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_stream_dict(t2p->pdf_palettesize, 0, output); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - written += t2p_write_pdf_xobject_palettecs_stream(t2p, output); - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - } - if( (t2p->pdf_colorspace & T2P_CS_ICCBASED) != 0){ - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - t2p->pdf_icccs=t2p->pdf_xrefcount; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_xobject_icccs_dict(t2p, output); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - written += t2p_write_pdf_xobject_icccs_stream(t2p, output); - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - } - if(t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount !=0){ - for(i2=0;i2tiff_tiles[t2p->pdf_page].tiles_tilecount;i2++){ - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_xobject_stream_dict( - i2+1, - t2p, - output); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - t2p_read_tiff_size_tile(t2p, input, i2); - written += t2p_readwrite_pdf_image_tile(t2p, input, output, i2); - t2p_write_advance_directory(t2p, output); - if(t2p->t2p_error!=T2P_ERR_OK){return(0);} - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_length(streamlen, output); - written += t2p_write_pdf_obj_end(output); - } - } else { - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_dict_start(output); - written += t2p_write_pdf_xobject_stream_dict( - 0, - t2p, - output); - written += t2p_write_pdf_stream_dict_end(output); - written += t2p_write_pdf_stream_start(output); - streamlen=written; - t2p_read_tiff_size(t2p, input); - written += t2p_readwrite_pdf_image(t2p, input, output); - t2p_write_advance_directory(t2p, output); - if(t2p->t2p_error!=T2P_ERR_OK){return(0);} - streamlen=written-streamlen; - written += t2p_write_pdf_stream_end(output); - written += t2p_write_pdf_obj_end(output); - t2p->pdf_xrefoffsets[t2p->pdf_xrefcount++]=written; - written += t2p_write_pdf_obj_start(t2p->pdf_xrefcount, output); - written += t2p_write_pdf_stream_length(streamlen, output); - written += t2p_write_pdf_obj_end(output); - } - } - t2p->pdf_startxref = written; - written += t2p_write_pdf_xreftable(t2p, output); - written += t2p_write_pdf_trailer(t2p, output); - t2p_disable(output); - - return(written); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiff2ps.c b/tiff/tools/tiff2ps.c deleted file mode 100755 index 7a9a816..0000000 --- a/tiff/tools/tiff2ps.c +++ /dev/null @@ -1,3082 +0,0 @@ -/* $Id: tiff2ps.c,v 1.52 2013-05-02 14:44:29 tgl Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include /* for atof */ -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -/* - * Revision history - * 2013-Jan-21 - * Richard Nolde: Fix bug in auto rotate option code. Once a - * rotation angle was set by the auto rotate check, it was - * retained for all pages that followed instead of being - * retested for each page. - * - * 2010-Sep-17 - * Richard Nolde: Reinstate code from Feb 2009 that never got - * accepted into CVS with major modifications to handle -H and -W - * options. Replaced original PlaceImage function with several - * new functions that make support for multiple output pages - * from a single image easier to understand. Added additional - * warning messages for incompatible command line options. - * Add new command line options to specify PageOrientation - * Document Structuring Comment for landscape or portrait - * and code to determine the values from ouput width and height - * if not specified on the command line. - * Add new command line option to specify document creator - * as an alterntive to the string "tiff2ps" following model - * of patch submitted by Thomas Jarosch for specifiying a - * document title which is also supported now. - * - * 2009-Feb-11 - * Richard Nolde: Added support for rotations of 90, 180, 270 - * and auto using -r <90|180|270|auto>. Auto picks the best - * fit for the image on the specified paper size (eg portrait - * or landscape) if -h or -w is specified. Rotation is in - * degrees counterclockwise since that is how Postscript does - * it. The auto opption rotates the image 90 degrees ccw to - * produce landscape if that is a better fit than portait. - * - * Cleaned up code in TIFF2PS and broke into smaller functions - * to simplify rotations. - * - * Identified incompatible options and returned errors, eg - * -i for imagemask operator is only available for Level2 or - * Level3 Postscript in the current implmentation since there - * is a difference in the way the operands are called for Level1 - * and there is no function to provide the Level1 version. - * -H was not handled properly if -h and/or -w were specified. - * It should only clip the masked images if the scaled image - * exceeds the maxPageHeight specified with -H. - * - * New design allows for all of the following combinations: - * Conversion of TIFF to Postscript with optional rotations - * of 90, 180, 270, or auto degrees counterclockwise - * Conversion of TIFF to Postscript with entire image scaled - * to maximum of values spedified with -h or -w while - * maintaining aspect ratio. Same rotations apply. - * Conversion of TIFF to Postscript with clipping of output - * viewport to height specified with -H, producing multiple - * pages at this height and original width as needed. - * Same rotations apply. - * Conversion of TIFF to Postscript with image scaled to - * maximum specified by -h and -w and the resulting scaled - * image is presented in an output viewport clipped by -H height. - * The same rotations apply. - * - * Added maxPageWidth option using -W flag. MaxPageHeight and - * MaxPageWidth are mutually exclusive since the aspect ratio - * cannot be maintained if you set both. - * Rewrote PlaceImage to allow maxPageHeight and maxPageWidth - * options to work with values smaller or larger than the - * physical paper size and still preserve the aspect ratio. - * This is accomplished by creating multiple pages across - * as well as down if need be. - * - * 2001-Mar-21 - * I (Bruce A. Mallett) added this revision history comment ;) - * - * Fixed PS_Lvl2page() code which outputs non-ASCII85 raw - * data. Moved test for when to output a line break to - * *after* the output of a character. This just serves - * to fix an eye-nuisance where the first line of raw - * data was one character shorter than subsequent lines. - * - * Added an experimental ASCII85 encoder which can be used - * only when there is a single buffer of bytes to be encoded. - * This version is much faster at encoding a straight-line - * buffer of data because it can avoid a lot of the loop - * overhead of the byte-by-byte version. To use this version - * you need to define EXP_ASCII85ENCODER (experimental ...). - * - * Added bug fix given by Michael Schmidt to PS_Lvl2page() - * in which an end-of-data marker ('>') was not being output - * when producing non-ASCII85 encoded PostScript Level 2 - * data. - * - * Fixed PS_Lvl2colorspace() so that it no longer assumes that - * a TIFF having more than 2 planes is a CMYK. This routine - * no longer looks at the samples per pixel but instead looks - * at the "photometric" value. This change allows support of - * CMYK TIFFs. - * - * Modified the PostScript L2 imaging loop so as to test if - * the input stream is still open before attempting to do a - * flushfile on it. This was done because some RIPs close - * the stream after doing the image operation. - * - * Got rid of the realloc() being done inside a loop in the - * PSRawDataBW() routine. The code now walks through the - * byte-size array outside the loop to determine the largest - * size memory block that will be needed. - * - * Added "-m" switch to ask tiff2ps to, where possible, use the - * "imagemask" operator instead of the "image" operator. - * - * Added the "-i #" switch to allow interpolation to be disabled. - * - * Unrolled a loop or two to improve performance. - */ - -/* - * Define EXP_ASCII85ENCODER if you want to use an experimental - * version of the ASCII85 encoding routine. The advantage of - * using this routine is that tiff2ps will convert to ASCII85 - * encoding at between 3 and 4 times the speed as compared to - * using the old (non-experimental) encoder. The disadvantage - * is that you will be using a new (and unproven) encoding - * routine. So user beware, you have been warned! - */ - -#define EXP_ASCII85ENCODER - -/* - * NB: this code assumes uint32 works with printf's %l[ud]. - */ -#ifndef TRUE -#define TRUE 1 -#define FALSE 0 -#endif - -int ascii85 = FALSE; /* use ASCII85 encoding */ -int interpolate = TRUE; /* interpolate level2 image */ -int level2 = FALSE; /* generate PostScript level 2 */ -int level3 = FALSE; /* generate PostScript level 3 */ -int printAll = FALSE; /* print all images in file */ -int generateEPSF = TRUE; /* generate Encapsulated PostScript */ -int PSduplex = FALSE; /* enable duplex printing */ -int PStumble = FALSE; /* enable top edge binding */ -int PSavoiddeadzone = TRUE; /* enable avoiding printer deadzone */ -double maxPageHeight = 0; /* maximum height to select from image and print per page */ -double maxPageWidth = 0; /* maximum width to select from image and print per page */ -double splitOverlap = 0; /* amount for split pages to overlag */ -int rotation = 0; /* optional value for rotation angle */ -int auto_rotate = 0; /* rotate image for best fit on the page */ -char *filename = NULL; /* input filename */ -char *title = NULL; /* optional document title string */ -char *creator = NULL; /* optional document creator string */ -char pageOrientation[12]; /* set optional PageOrientation DSC to Landscape or Portrait */ -int useImagemask = FALSE; /* Use imagemask instead of image operator */ -uint16 res_unit = 0; /* Resolution units: 2 - inches, 3 - cm */ - -/* - * ASCII85 Encoding Support. - */ -unsigned char ascii85buf[10]; -int ascii85count; -int ascii85breaklen; - -int TIFF2PS(FILE*, TIFF*, double, double, double, double, int); -void PSpage(FILE*, TIFF*, uint32, uint32); -void PSColorContigPreamble(FILE*, uint32, uint32, int); -void PSColorSeparatePreamble(FILE*, uint32, uint32, int); -void PSDataColorContig(FILE*, TIFF*, uint32, uint32, int); -void PSDataColorSeparate(FILE*, TIFF*, uint32, uint32, int); -void PSDataPalette(FILE*, TIFF*, uint32, uint32); -void PSDataBW(FILE*, TIFF*, uint32, uint32); -void PSRawDataBW(FILE*, TIFF*, uint32, uint32); -void Ascii85Init(void); -void Ascii85Put(unsigned char code, FILE* fd); -void Ascii85Flush(FILE* fd); -void PSHead(FILE*, double, double, double, double); -void PSTail(FILE*, int); -int psStart(FILE *, int, int, int *, double *, double, double, double, - double, double, double, double, double, double, double); -int psPageSize(FILE *, int, double, double, double, double, double, double); -int psRotateImage(FILE *, int, double, double, double, double); -int psMaskImage(FILE *, TIFF *, int, int, int *, double, double, - double, double, double, double, double, double, double); -int psScaleImage(FILE *, double, int, int, double, double, double, double, - double, double); -int get_viewport (double, double, double, double, double *, double *, int); -int exportMaskedImage(FILE *, double, double, double, double, int, int, - double, double, double, int, int); - -#if defined( EXP_ASCII85ENCODER) -tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ); -#endif - -static void usage(int); - -int -main(int argc, char* argv[]) -{ - int dirnum = -1, c, np = 0; - int centered = 0; - double bottommargin = 0; - double leftmargin = 0; - double pageWidth = 0; - double pageHeight = 0; - uint32 diroff = 0; - extern char *optarg; - extern int optind; - FILE* output = stdout; - - pageOrientation[0] = '\0'; - - while ((c = getopt(argc, argv, "b:d:h:H:W:L:i:w:l:o:O:P:C:r:t:acemxyzps1238DT")) != -1) - switch (c) { - case 'b': - bottommargin = atof(optarg); - break; - case 'c': - centered = 1; - break; - case 'C': - creator = optarg; - break; - case 'd': /* without -a, this only processes one image at this IFD */ - dirnum = atoi(optarg); - break; - case 'D': - PSduplex = TRUE; - break; - case 'i': - interpolate = atoi(optarg) ? TRUE:FALSE; - break; - case 'T': - PStumble = TRUE; - break; - case 'e': - PSavoiddeadzone = FALSE; - generateEPSF = TRUE; - break; - case 'h': - pageHeight = atof(optarg); - break; - case 'H': - maxPageHeight = atof(optarg); - break; - case 'W': - maxPageWidth = atof(optarg); - break; - case 'L': - splitOverlap = atof(optarg); - break; - case 'm': - useImagemask = TRUE; - break; - case 'o': - switch (optarg[0]) - { - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': diroff = (uint32) strtoul(optarg, NULL, 0); - break; - default: TIFFError ("-o", "Offset must be a numeric value."); - exit (1); - } - break; - case 'O': /* XXX too bad -o is already taken */ - output = fopen(optarg, "w"); - if (output == NULL) { - fprintf(stderr, - "%s: %s: Cannot open output file.\n", - argv[0], optarg); - exit(-2); - } - break; - case 'P': - switch (optarg[0]) - { - case 'l': - case 'L': strcpy (pageOrientation, "Landscape"); - break; - case 'p': - case 'P': strcpy (pageOrientation, "Portrait"); - break; - default: TIFFError ("-P", "Page orientation must be Landscape or Portrait"); - exit (-1); - } - break; - case 'l': - leftmargin = atof(optarg); - break; - case 'a': /* removed fall through to generate warning below, R Nolde 09-01-2010 */ - printAll = TRUE; - break; - case 'p': - generateEPSF = FALSE; - break; - case 'r': - if (strcmp (optarg, "auto") == 0) - { - rotation = 0; - auto_rotate = TRUE; - } - else - { - rotation = atoi(optarg); - auto_rotate = FALSE; - } - switch (rotation) - { - case 0: - case 90: - case 180: - case 270: - break; - default: - fprintf (stderr, "Rotation angle must be 90, 180, 270 (degrees ccw) or auto\n"); - exit (-1); - } - break; - case 's': - printAll = FALSE; - break; - case 't': - title = optarg; - break; - case 'w': - pageWidth = atof(optarg); - break; - case 'z': - PSavoiddeadzone = FALSE; - break; - case '1': - level2 = FALSE; - level3 = FALSE; - ascii85 = FALSE; - break; - case '2': - level2 = TRUE; - ascii85 = TRUE; /* default to yes */ - break; - case '3': - level3 = TRUE; - ascii85 = TRUE; /* default to yes */ - break; - case '8': - ascii85 = FALSE; - break; - case 'x': - res_unit = RESUNIT_CENTIMETER; - break; - case 'y': - res_unit = RESUNIT_INCH; - break; - case '?': - usage(-1); - } - - if (useImagemask == TRUE) - { - if ((level2 == FALSE) && (level3 == FALSE)) - { - TIFFError ("-m "," imagemask operator requres Postscript Level2 or Level3"); - exit (1); - } - } - - if (pageWidth && (maxPageWidth > pageWidth)) - { - TIFFError ("-W", "Max viewport width cannot exceed page width"); - exit (1); - } - - if (pageHeight && (maxPageHeight > pageHeight)) - { - TIFFError ("-H", "Max viewport height cannot exceed page height"); - exit (1); - } - - /* auto rotate requires a specified page width and height */ - if (auto_rotate == TRUE) - { - /* - if ((pageWidth == 0) || (pageHeight == 0)) - TIFFWarning ("-r auto", " requires page height and width specified with -h and -w"); - */ - if ((maxPageWidth > 0) || (maxPageHeight > 0)) - { - TIFFError ("-r auto", " is incompatible with maximum page width/height specified by -H or -W"); - exit (1); - } - } - if ((maxPageWidth > 0) && (maxPageHeight > 0)) - { - TIFFError ("-H and -W", " Use only one of -H or -W to define a viewport"); - exit (1); - } - - if ((generateEPSF == TRUE) && (printAll == TRUE)) - { - TIFFError(" -e and -a", "Warning: Cannot generate Encapsulated Postscript for multiple images"); - generateEPSF = FALSE; - } - - if ((generateEPSF == TRUE) && (PSduplex == TRUE)) - { - TIFFError(" -e and -D", "Warning: Encapsulated Postscript does not support Duplex option"); - PSduplex = FALSE; - } - - if ((generateEPSF == TRUE) && (PStumble == TRUE)) - { - TIFFError(" -e and -T", "Warning: Encapsulated Postscript does not support Top Edge Binding option"); - PStumble = FALSE; - } - - if ((generateEPSF == TRUE) && (PSavoiddeadzone == TRUE)) - PSavoiddeadzone = FALSE; - - for (; argc - optind > 0; optind++) { - TIFF* tif = TIFFOpen(filename = argv[optind], "r"); - if (tif != NULL) { - if (dirnum != -1 - && !TIFFSetDirectory(tif, (tdir_t)dirnum)) - return (-1); - else if (diroff != 0 && - !TIFFSetSubDirectory(tif, diroff)) - return (-1); - np = TIFF2PS(output, tif, pageWidth, pageHeight, - leftmargin, bottommargin, centered); - if (np < 0) - { - TIFFError("Error", "Unable to process %s", filename); - } - TIFFClose(tif); - } - } - if (np) - PSTail(output, np); - else - usage(-1); - if (output != stdout) - fclose(output); - return (0); -} - -static uint16 samplesperpixel; -static uint16 bitspersample; -static uint16 planarconfiguration; -static uint16 photometric; -static uint16 compression; -static uint16 extrasamples; -static int alpha; - -static int -checkImage(TIFF* tif) -{ - switch (photometric) { - case PHOTOMETRIC_YCBCR: - if ((compression == COMPRESSION_JPEG || compression == COMPRESSION_OJPEG) - && planarconfiguration == PLANARCONFIG_CONTIG) { - /* can rely on libjpeg to convert to RGB */ - TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, - JPEGCOLORMODE_RGB); - photometric = PHOTOMETRIC_RGB; - } else { - if (level2 || level3) - break; - TIFFError(filename, "Can not handle image with %s", - "PhotometricInterpretation=YCbCr"); - return (0); - } - /* fall thru... */ - case PHOTOMETRIC_RGB: - if (alpha && bitspersample != 8) { - TIFFError(filename, - "Can not handle %d-bit/sample RGB image with alpha", - bitspersample); - return (0); - } - /* fall thru... */ - case PHOTOMETRIC_SEPARATED: - case PHOTOMETRIC_PALETTE: - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_MINISWHITE: - break; - case PHOTOMETRIC_LOGL: - case PHOTOMETRIC_LOGLUV: - if (compression != COMPRESSION_SGILOG && - compression != COMPRESSION_SGILOG24) { - TIFFError(filename, - "Can not handle %s data with compression other than SGILog", - (photometric == PHOTOMETRIC_LOGL) ? - "LogL" : "LogLuv" - ); - return (0); - } - /* rely on library to convert to RGB/greyscale */ - TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); - photometric = (photometric == PHOTOMETRIC_LOGL) ? - PHOTOMETRIC_MINISBLACK : PHOTOMETRIC_RGB; - bitspersample = 8; - break; - case PHOTOMETRIC_CIELAB: - /* fall thru... */ - default: - TIFFError(filename, - "Can not handle image with PhotometricInterpretation=%d", - photometric); - return (0); - } - switch (bitspersample) { - case 1: case 2: - case 4: case 8: - case 16: - break; - default: - TIFFError(filename, "Can not handle %d-bit/sample image", - bitspersample); - return (0); - } - if (planarconfiguration == PLANARCONFIG_SEPARATE && extrasamples > 0) - TIFFWarning(filename, "Ignoring extra samples"); - return (1); -} - -#define PS_UNIT_SIZE 72.0F -#define PSUNITS(npix,res) ((npix) * (PS_UNIT_SIZE / (res))) - -static char RGBcolorimage[] = "\ -/bwproc {\n\ - rgbproc\n\ - dup length 3 idiv string 0 3 0\n\ - 5 -1 roll {\n\ - add 2 1 roll 1 sub dup 0 eq {\n\ - pop 3 idiv\n\ - 3 -1 roll\n\ - dup 4 -1 roll\n\ - dup 3 1 roll\n\ - 5 -1 roll put\n\ - 1 add 3 0\n\ - } { 2 1 roll } ifelse\n\ - } forall\n\ - pop pop pop\n\ -} def\n\ -/colorimage where {pop} {\n\ - /colorimage {pop pop /rgbproc exch def {bwproc} image} bind def\n\ -} ifelse\n\ -"; - -/* - * Adobe Photoshop requires a comment line of the form: - * - * %ImageData:
    - * <1 for binary|2 for hex> "data start" - * - * It is claimed to be part of some future revision of the EPS spec. - */ -static void -PhotoshopBanner(FILE* fd, uint32 w, uint32 h, int bs, int nc, char* startline) -{ - fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"", - (long) w, (long) h, bitspersample, nc, bs); - fprintf(fd, startline, nc); - fprintf(fd, "\"\n"); -} - -/* Convert pixel width and height pw, ph, to points pprw, pprh - * using image resolution and resolution units from TIFF tags. - * pw : image width in pixels - * ph : image height in pixels - * pprw : image width in PS units (72 dpi) - * pprh : image height in PS units (72 dpi) - */ -static void -setupPageState(TIFF* tif, uint32* pw, uint32* ph, double* pprw, double* pprh) -{ - float xres = 0.0F, yres = 0.0F; - - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, pw); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, ph); - if (res_unit == 0) /* Not specified as command line option */ - if (!TIFFGetFieldDefaulted(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit)) - res_unit = RESUNIT_INCH; - /* - * Calculate printable area. - */ - if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) - || fabs(xres) < 0.0000001) - xres = PS_UNIT_SIZE; - if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) - || fabs(yres) < 0.0000001) - yres = PS_UNIT_SIZE; - switch (res_unit) { - case RESUNIT_CENTIMETER: - xres *= 2.54F, yres *= 2.54F; - break; - case RESUNIT_INCH: - break; - case RESUNIT_NONE: /* Subsequent code assumes we have converted to inches! */ - res_unit = RESUNIT_INCH; - break; - default: /* Last ditch guess for unspecified RESUNIT case - * check that the resolution is not inches before scaling it. - * Moved to end of function with additional check, RJN, 08-31-2010 - * if (xres != PS_UNIT_SIZE || yres != PS_UNIT_SIZE) - * xres *= PS_UNIT_SIZE, yres *= PS_UNIT_SIZE; - */ - break; - } - /* This is a hack to deal with images that have no meaningful Resolution Size - * but may have x and/or y resolutions of 1 pixel per undefined unit. - */ - if ((xres > 1.0) && (xres != PS_UNIT_SIZE)) - *pprw = PSUNITS(*pw, xres); - else - *pprw = PSUNITS(*pw, PS_UNIT_SIZE); - if ((yres > 1.0) && (yres != PS_UNIT_SIZE)) - *pprh = PSUNITS(*ph, yres); - else - *pprh = PSUNITS(*ph, PS_UNIT_SIZE); -} - -static int -isCCITTCompression(TIFF* tif) -{ - uint16 compress; - TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); - return (compress == COMPRESSION_CCITTFAX3 || - compress == COMPRESSION_CCITTFAX4 || - compress == COMPRESSION_CCITTRLE || - compress == COMPRESSION_CCITTRLEW); -} - -static tsize_t tf_bytesperrow; -static tsize_t ps_bytesperrow; -static tsize_t tf_rowsperstrip; -static tsize_t tf_numberstrips; -static char *hex = "0123456789abcdef"; - -/* - * Pagewidth and pageheight are the output size in points, - * may refer to values specified with -h and -w, or to - * values read from the image if neither -h nor -w are used. - * Imagewidth and imageheight are image size in points. - * Ximages and Yimages are number of pages across and down. - * Only one of maxPageHeight or maxPageWidth can be used. - * These are global variables unfortunately. - */ -int get_subimage_count(double pagewidth, double pageheight, - double imagewidth, double imageheight, - int *ximages, int *yimages, - int rotation, double scale) -{ - int pages = 1; - double splitheight = 0; /* Requested Max Height in points */ - double splitwidth = 0; /* Requested Max Width in points */ - double overlap = 0; /* Repeated edge width in points */ - - splitheight = maxPageHeight * PS_UNIT_SIZE; - splitwidth = maxPageWidth * PS_UNIT_SIZE; - overlap = splitOverlap * PS_UNIT_SIZE; - pagewidth *= PS_UNIT_SIZE; - pageheight *= PS_UNIT_SIZE; - - if ((imagewidth < 1.0) || (imageheight < 1.0)) - { - TIFFError("get_subimage_count", "Invalid image width or height"); - return (0); - } - - switch (rotation) - { - case 0: - case 180: if (splitheight > 0) /* -H maxPageHeight */ - { - if (imageheight > splitheight) /* More than one vertical image segment */ - { - if (pagewidth) - *ximages = (int)ceil((scale * imagewidth) / (pagewidth - overlap)); - else - *ximages = 1; - *yimages = (int)ceil((scale * imageheight) / (splitheight - overlap)); /* Max vert pages needed */ - } - else - { - if (pagewidth) - *ximages = (int)ceil((scale * imagewidth) / (pagewidth - overlap)); /* Max horz pages needed */ - else - *ximages = 1; - *yimages = 1; /* Max vert pages needed */ - } - } - else - { - if (splitwidth > 0) /* -W maxPageWidth */ - { - if (imagewidth >splitwidth) - { - *ximages = (int)ceil((scale * imagewidth) / (splitwidth - overlap)); /* Max horz pages needed */ - if (pageheight) - *yimages = (int)ceil((scale * imageheight) / (pageheight - overlap)); /* Max vert pages needed */ - else - *yimages = 1; - } - else - { - *ximages = 1; /* Max vert pages needed */ - if (pageheight) - *yimages = (int)ceil((scale * imageheight) / (pageheight - overlap)); /* Max vert pages needed */ - else - *yimages = 1; - } - } - else - { - *ximages = 1; - *yimages = 1; - } - } - break; - case 90: - case 270: if (splitheight > 0) /* -H maxPageHeight */ - { - if (imagewidth > splitheight) /* More than one vertical image segment */ - { - *yimages = (int)ceil((scale * imagewidth) / (splitheight - overlap)); /* Max vert pages needed */ - if (pagewidth) - *ximages = (int)ceil((scale * imageheight) / (pagewidth - overlap)); /* Max horz pages needed */ - else - *ximages = 1; - } - else - { - *yimages = 1; /* Max vert pages needed */ - if (pagewidth) - *ximages = (int)ceil((scale * imageheight) / (pagewidth - overlap)); /* Max horz pages needed */ - else - *ximages = 1; - } - } - else - { - if (splitwidth > 0) /* -W maxPageWidth */ - { - if (imageheight > splitwidth) - { - if (pageheight) - *yimages = (int)ceil((scale * imagewidth) / (pageheight - overlap)); /* Max vert pages needed */ - else - *yimages = 1; - *ximages = (int)ceil((scale * imageheight) / (splitwidth - overlap)); /* Max horz pages needed */ - } - else - { - if (pageheight) - *yimages = (int)ceil((scale * imagewidth) / (pageheight - overlap)); /* Max horz pages needed */ - else - *yimages = 1; - *ximages = 1; /* Max vert pages needed */ - } - } - else - { - *ximages = 1; - *yimages = 1; - } - } - break; - default: *ximages = 1; - *yimages = 1; - } - pages = (*ximages) * (*yimages); - return (pages); - } - -/* New version of PlaceImage that handles only the translation and rotation - * for a single output page. - */ -int exportMaskedImage(FILE *fp, double pagewidth, double pageheight, - double imagewidth, double imageheight, - int row, int column, - double left_offset, double bott_offset, - double scale, int center, int rotation) - { - double xtran = 0.0; - double ytran = 0.0; - - double xscale = 1.0; - double yscale = 1.0; - - double splitheight = 0; /* Requested Max Height in points */ - double splitwidth = 0; /* Requested Max Width in points */ - double overlap = 0; /* Repeated edge width in points */ - double subimage_height = 0.0; - - splitheight = maxPageHeight * PS_UNIT_SIZE; - splitwidth = maxPageWidth * PS_UNIT_SIZE; - overlap = splitOverlap * PS_UNIT_SIZE; - xscale = scale * imagewidth; - yscale = scale * imageheight; - - if ((xscale < 0.0) || (yscale < 0.0)) - { - TIFFError("exportMaskedImage", "Invalid parameters."); - return (-1); - } - - /* If images are cropped to a vewport with -H or -W, the output pages are shifted to - * the top of each output page rather than the Postscript default lower edge. - */ - switch (rotation) - { - case 0: - case 180: if (splitheight > 0) /* -H maxPageHeight */ - { - if (splitheight < imageheight) /* More than one vertical image segments */ - { - xtran = -1.0 * column * (pagewidth - overlap); - subimage_height = imageheight - ((splitheight - overlap) * row); - ytran = pageheight - subimage_height * (pageheight / splitheight); - } - else /* Only one page in vertical direction */ - { - xtran = -1.0 * column * (pagewidth - overlap); - ytran = splitheight - imageheight; - } - } - else - { - if (splitwidth > 0) /* maxPageWidth */ - { - if (splitwidth < imagewidth) - { - xtran = -1.0 * column * splitwidth; - ytran = -1.0 * row * (pageheight - overlap); - } - else /* Only one page in horizontal direction */ - { - ytran = -1.0 * row * (pageheight - overlap); - xtran = 0; - } - } - else /* Simple case, no splitting */ - { - ytran = pageheight - imageheight; - xtran = 0; - } - } - bott_offset += ytran / (center ? 2 : 1); - left_offset += xtran / (center ? 2 : 1); - break; - case 90: - case 270: if (splitheight > 0) /* -H maxPageHeight */ - { - if (splitheight < imagewidth) /* More than one vertical image segments */ - { - xtran = -1.0 * column * (pageheight - overlap); - /* Commented code places image at bottom of page instead of top. - ytran = -1.0 * row * splitheight; - */ - if (row == 0) - ytran = -1.0 * (imagewidth - splitheight); - else - ytran = -1.0 * (imagewidth - (splitheight - overlap) * (row + 1)); - } - else /* Only one page in vertical direction */ - { - xtran = -1.0 * column * (pageheight - overlap); - ytran = splitheight - imagewidth; - } - } - else - { - if (splitwidth > 0) /* maxPageWidth */ - { - if (splitwidth < imageheight) - { - xtran = -1.0 * column * splitwidth; - ytran = -1.0 * row * (pagewidth - overlap); - } - else /* Only one page in horizontal direction */ - { - ytran = -1.0 * row * (pagewidth - overlap); - xtran = 0; - } - } - else /* Simple case, no splitting */ - { - ytran = pageheight - imageheight; - xtran = 0; /* pagewidth - imagewidth; */ - } - } - bott_offset += ytran / (center ? 2 : 1); - left_offset += xtran / (center ? 2 : 1); - break; - default: xtran = 0; - ytran = 0; - } - - switch (rotation) - { - case 0: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); - fprintf(fp, "%f %f scale\n", xscale, yscale); - break; - case 180: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); - fprintf(fp, "%f %f scale\n1 1 translate 180 rotate\n", xscale, yscale); - break; - case 90: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); - fprintf(fp, "%f %f scale\n1 0 translate 90 rotate\n", yscale, xscale); - break; - case 270: fprintf(fp, "%f %f translate\n", left_offset, bott_offset); - fprintf(fp, "%f %f scale\n0 1 translate 270 rotate\n", yscale, xscale); - break; - default: TIFFError ("exportMaskedImage", "Unsupported rotation angle %d. No rotation", rotation); - fprintf( fp, "%f %f scale\n", xscale, yscale); - break; - } - - return (0); - } - -/* Rotate an image without scaling or clipping */ -int psRotateImage (FILE * fd, int rotation, double pswidth, double psheight, - double left_offset, double bottom_offset) - { - if ((left_offset != 0.0) || (bottom_offset != 0)) - fprintf (fd, "%f %f translate\n", left_offset, bottom_offset); - - /* Exchange width and height for 90/270 rotations */ - switch (rotation) - { - case 0: fprintf (fd, "%f %f scale\n", pswidth, psheight); - break; - case 90: fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight, pswidth); - break; - case 180: fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth, psheight); - break; - case 270: fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight, pswidth); - break; - default: TIFFError ("psRotateImage", "Unsupported rotation %d.", rotation); - fprintf( fd, "%f %f scale\n", pswidth, psheight); - return (1); - } - return (0); - } - -/* Scale and rotate an image to a single output page. */ -int psScaleImage(FILE * fd, double scale, int rotation, int center, - double reqwidth, double reqheight, double pswidth, double psheight, - double left_offset, double bottom_offset) - { - double hcenter = 0.0, vcenter = 0.0; - - /* Adjust offsets for centering */ - if (center) - { - switch (rotation) - { - case 90: vcenter = (reqheight - pswidth * scale) / 2; - hcenter = (reqwidth - psheight * scale) / 2; - fprintf (fd, "%f %f translate\n", hcenter, vcenter); - fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight * scale, pswidth * scale); - break; - case 180: hcenter = (reqwidth - pswidth * scale) / 2; - vcenter = (reqheight - psheight * scale) / 2; - fprintf (fd, "%f %f translate\n", hcenter, vcenter); - fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth * scale, psheight * scale); - break; - case 270: vcenter = (reqheight - pswidth * scale) / 2; - hcenter = (reqwidth - psheight * scale) / 2; - fprintf (fd, "%f %f translate\n", hcenter, vcenter); - fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight * scale, pswidth * scale); - break; - case 0: - default: hcenter = (reqwidth - pswidth * scale) / 2; - vcenter = (reqheight - psheight * scale) / 2; - fprintf (fd, "%f %f translate\n", hcenter, vcenter); - fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); - break; - } - } - else /* Not centered */ - { - switch (rotation) - { - case 0: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, - bottom_offset ? bottom_offset : reqheight - (psheight * scale)); - fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); - break; - case 90: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, - bottom_offset ? bottom_offset : reqheight - (pswidth * scale)); - fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", psheight * scale, pswidth * scale); - break; - case 180: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, - bottom_offset ? bottom_offset : reqheight - (psheight * scale)); - fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", pswidth * scale, psheight * scale); - break; - case 270: fprintf (fd, "%f %f translate\n", left_offset ? left_offset : 0.0, - bottom_offset ? bottom_offset : reqheight - (pswidth * scale)); - fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", psheight * scale, pswidth * scale); - break; - default: TIFFError ("psScaleImage", "Unsupported rotation %d", rotation); - fprintf (fd, "%f %f scale\n", pswidth * scale, psheight * scale); - return (1); - } - } - - return (0); - } - -/* This controls the visible portion of the page which is displayed. - * N.B. Setting maxPageHeight no longer sets pageheight if not set explicitly - */ -int psPageSize (FILE * fd, int rotation, double pgwidth, double pgheight, - double reqwidth, double reqheight, double pswidth, double psheight) - { - double xscale = 1.0, yscale = 1.0, scale = 1.0; - double splitheight; - double splitwidth; - double new_width; - double new_height; - - splitheight = maxPageHeight * PS_UNIT_SIZE; - splitwidth = maxPageWidth * PS_UNIT_SIZE; - - switch (rotation) - { - case 0: - case 180: if ((splitheight > 0) || (splitwidth > 0)) - { - if (pgwidth != 0 || pgheight != 0) - { - xscale = reqwidth / (splitwidth ? splitwidth : pswidth); - yscale = reqheight / (splitheight ? splitheight : psheight); - scale = (xscale < yscale) ? xscale : yscale; - } - new_width = splitwidth ? splitwidth : scale * pswidth; - new_height = splitheight ? splitheight : scale * psheight; - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (new_width > new_height) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)new_width, (long)new_height); - fprintf (fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - new_width, new_height); - } - else /* No viewport defined with -H or -W */ - { - if ((pgwidth == 0) && (pgheight == 0)) /* Image not scaled */ - { - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (pswidth > psheight) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)pswidth, (long)psheight); - fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - pswidth, psheight); - } - else /* Image scaled */ - { - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (reqwidth > reqheight) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)reqwidth, (long)reqheight); - fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - reqwidth, reqheight); - } - } - break; - case 90: - case 270: if ((splitheight > 0) || (splitwidth > 0)) - { - if (pgwidth != 0 || pgheight != 0) - { - xscale = reqwidth / (splitwidth ? splitwidth : pswidth); - yscale = reqheight / (splitheight ? splitheight : psheight); - scale = (xscale < yscale) ? xscale : yscale; - } - new_width = splitwidth ? splitwidth : scale * psheight; - new_height = splitheight ? splitheight : scale * pswidth; - - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (new_width > new_height) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)new_width, (long)new_height); - fprintf (fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - new_width, new_height); - } - else - { - if ((pgwidth == 0) && (pgheight == 0)) /* Image not scaled */ - { - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (psheight > pswidth) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)psheight, (long)pswidth); - fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - psheight, pswidth); - } - else /* Image scaled */ - { - if (strlen(pageOrientation)) - fprintf (fd, "%%%%PageOrientation: %s\n", pageOrientation); - else - fprintf (fd, "%%%%PageOrientation: %s\n", (reqwidth > reqheight) ? "Landscape" : "Portrait"); - fprintf (fd, "%%%%PageBoundingBox: 0 0 %ld %ld\n", (long)reqwidth, (long)reqheight); - fprintf(fd, "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", - reqwidth, reqheight); - } - } - break; - default: TIFFError ("psPageSize", "Invalid rotation %d", rotation); - return (1); - } - fputs("<<\n /Policies <<\n /PageSize 3\n >>\n>> setpagedevice\n", fd); - - return (0); - } /* end psPageSize */ - -/* Mask an image as a series of pages, each only showing a section defined - * by the maxPageHeight or maxPageWidth options. - */ -int psMaskImage(FILE *fd, TIFF *tif, int rotation, int center, - int *npages, double pixwidth, double pixheight, - double left_margin, double bottom_margin, - double pgwidth, double pgheight, - double pswidth, double psheight, double scale) - { - int i, j; - int ximages = 1, yimages = 1; - int pages = *npages; - double view_width = 0; - double view_height = 0; - - if (get_viewport (pgwidth, pgheight, pswidth, psheight, &view_width, &view_height, rotation)) - { - TIFFError ("get_viewport", "Unable to set image viewport"); - return (-1); - } - - if (get_subimage_count(pgwidth, pgheight, pswidth, psheight, - &ximages, &yimages, rotation, scale) < 1) - { - TIFFError("get_subimage_count", "Invalid image count: %d columns, %d rows", ximages, yimages); - return (-1); - } - - for (i = 0; i < yimages; i++) - { - for (j = 0; j < ximages; j++) - { - pages++; - *npages = pages; - fprintf(fd, "%%%%Page: %d %d\n", pages, pages); - - /* Write out the PageSize info for non EPS files */ - if (!generateEPSF && ( level2 || level3 )) - { - if (psPageSize(fd, rotation, pgwidth, pgheight, - view_width, view_height, pswidth, psheight)) - return (-1); - } - fprintf(fd, "gsave\n"); - fprintf(fd, "100 dict begin\n"); - if (exportMaskedImage(fd, view_width, view_height, pswidth, psheight, - i, j, left_margin, bottom_margin, - scale, center, rotation)) - { - TIFFError("exportMaskedImage", "Invalid image parameters."); - return (-1); - } - PSpage(fd, tif, pixwidth, pixheight); - fprintf(fd, "end\n"); - fprintf(fd, "grestore\n"); - fprintf(fd, "showpage\n"); - } - } - - return (pages); - } - -/* Compute scale factor and write out file header */ -int psStart(FILE *fd, int npages, int auto_rotate, int *rotation, double *scale, - double ox, double oy, double pgwidth, double pgheight, - double reqwidth, double reqheight, double pswidth, double psheight, - double left_offset, double bottom_offset) - { - double maxsource = 0.0; /* Used for auto rotations */ - double maxtarget = 0.0; - double xscale = 1.0, yscale = 1.0; - double splitheight; - double splitwidth; - double view_width = 0.0, view_height = 0.0; - double page_width = 0.0, page_height = 0.0; - - /* Splitheight and splitwidth are in inches */ - splitheight = maxPageHeight * PS_UNIT_SIZE; - splitwidth = maxPageWidth * PS_UNIT_SIZE; - - page_width = pgwidth * PS_UNIT_SIZE; - page_height = pgheight * PS_UNIT_SIZE; - - /* If user has specified a page width and height and requested the - * image to be auto-rotated to fit on that media, we match the - * longest dimension of the image to the longest dimension of the - * target media but we have to ignore auto rotate if user specified - * maxPageHeight since this makes life way too complicated. */ - if (auto_rotate) - { - if ((splitheight != 0) || (splitwidth != 0)) - { - TIFFError ("psStart", "Auto-rotate is incompatible with page splitting "); - return (1); - } - - /* Find longest edges in image and output media */ - maxsource = (pswidth >= psheight) ? pswidth : psheight; - maxtarget = (reqwidth >= reqheight) ? reqwidth : reqheight; - - if (((maxsource == pswidth) && (maxtarget != reqwidth)) || - ((maxsource == psheight) && (maxtarget != reqheight))) - { /* optimal orientaion does not match input orientation */ - *rotation = 90; - xscale = (reqwidth - left_offset)/psheight; - yscale = (reqheight - bottom_offset)/pswidth; - } - else /* optimal orientaion matches input orientation */ - { - xscale = (reqwidth - left_offset)/pswidth; - yscale = (reqheight - bottom_offset)/psheight; - } - *scale = (xscale < yscale) ? xscale : yscale; - - /* Do not scale image beyound original size */ - if (*scale > 1.0) - *scale = 1.0; - - /* Set the size of the displayed image to requested page size - * and optimal orientation. - */ - if (!npages) - PSHead(fd, reqwidth, reqheight, ox, oy); - - return (0); - } - - /* N.B. If pgwidth or pgheight are set from maxPageHeight/Width, - * we have a problem with the tests below under splitheight. - */ - - switch (*rotation) /* Auto rotate has NOT been specified */ - { - case 0: - case 180: if ((splitheight != 0) || (splitwidth != 0)) - { /* Viewport clipped to maxPageHeight or maxPageWidth */ - if ((page_width != 0) || (page_height != 0)) /* Image scaled */ - { - xscale = (reqwidth - left_offset) / (page_width ? page_width : pswidth); - yscale = (reqheight - bottom_offset) / (page_height ? page_height : psheight); - *scale = (xscale < yscale) ? xscale : yscale; - /* - if (*scale > 1.0) - *scale = 1.0; - */ - } - else /* Image clipped but not scaled */ - *scale = 1.0; - - view_width = splitwidth ? splitwidth : *scale * pswidth; - view_height = splitheight ? splitheight: *scale * psheight; - } - else /* Viewport not clipped to maxPageHeight or maxPageWidth */ - { - if ((page_width != 0) || (page_height != 0)) - { /* Image scaled */ - xscale = (reqwidth - left_offset) / pswidth; - yscale = (reqheight - bottom_offset) / psheight; - - view_width = reqwidth; - view_height = reqheight; - } - else - { /* Image not scaled */ - xscale = (pswidth - left_offset)/pswidth; - yscale = (psheight - bottom_offset)/psheight; - - view_width = pswidth; - view_height = psheight; - } - } - break; - case 90: - case 270: if ((splitheight != 0) || (splitwidth != 0)) - { /* Viewport clipped to maxPageHeight or maxPageWidth */ - if ((page_width != 0) || (page_height != 0)) /* Image scaled */ - { - xscale = (reqwidth - left_offset)/ psheight; - yscale = (reqheight - bottom_offset)/ pswidth; - *scale = (xscale < yscale) ? xscale : yscale; - /* - if (*scale > 1.0) - *scale = 1.0; - */ - } - else /* Image clipped but not scaled */ - *scale = 1.0; - view_width = splitwidth ? splitwidth : *scale * psheight; - view_height = splitheight ? splitheight : *scale * pswidth; - } - else /* Viewport not clipped to maxPageHeight or maxPageWidth */ - { - if ((page_width != 0) || (page_height != 0)) /* Image scaled */ - { - xscale = (reqwidth - left_offset) / psheight; - yscale = (reqheight - bottom_offset) / pswidth; - - view_width = reqwidth; - view_height = reqheight; - } - else - { - xscale = (pswidth - left_offset)/ psheight; - yscale = (psheight - bottom_offset)/ pswidth; - - view_width = psheight; - view_height = pswidth; - } - } - break; - default: TIFFError ("psPageSize", "Invalid rotation %d", *rotation); - return (1); - } - - if (!npages) - PSHead(fd, (page_width ? page_width : view_width), (page_height ? page_height : view_height), ox, oy); - - *scale = (xscale < yscale) ? xscale : yscale; - if (*scale > 1.0) - *scale = 1.0; - - return (0); - } - -int get_viewport (double pgwidth, double pgheight, double pswidth, double psheight, - double *view_width, double *view_height, int rotation) - { - /* Only one of maxPageHeight or maxPageWidth can be specified */ - if (maxPageHeight != 0) /* Clip the viewport to maxPageHeight on each page */ - { - *view_height = maxPageHeight * PS_UNIT_SIZE; - /* - * if (res_unit == RESUNIT_CENTIMETER) - * *view_height /= 2.54F; - */ - } - else - { - if (pgheight != 0) /* User has set PageHeight with -h flag */ - { - *view_height = pgheight * PS_UNIT_SIZE; /* Postscript size for Page Height in inches */ - /* if (res_unit == RESUNIT_CENTIMETER) - * *view_height /= 2.54F; - */ - } - else /* If no width or height are specified, use the original size from image */ - switch (rotation) - { - default: - case 0: - case 180: *view_height = psheight; - break; - case 90: - case 270: *view_height = pswidth; - break; - } - } - - if (maxPageWidth != 0) /* Clip the viewport to maxPageWidth on each page */ - { - *view_width = maxPageWidth * PS_UNIT_SIZE; - /* if (res_unit == RESUNIT_CENTIMETER) - * *view_width /= 2.54F; - */ - } - else - { - if (pgwidth != 0) /* User has set PageWidth with -w flag */ - { - *view_width = pgwidth * PS_UNIT_SIZE; /* Postscript size for Page Width in inches */ - /* if (res_unit == RESUNIT_CENTIMETER) - * *view_width /= 2.54F; - */ - } - else /* If no width or height are specified, use the original size from image */ - switch (rotation) - { - default: - case 0: - case 180: *view_width = pswidth; - break; - case 90: - case 270: *view_width = psheight; /* (*view_height / psheight) * psheight; */ - break; - } - } - - return (0); - } - -/* pgwidth and pgheight specify page width and height in inches from -h and -w flags - * lm and bm are the LeftMargin and BottomMargin in inches - * center causes the image to be centered on the page if the paper size is - * larger than the image size - * returns the sequence number of the page processed or -1 on error - */ - -int TIFF2PS(FILE* fd, TIFF* tif, double pgwidth, double pgheight, double lm, double bm, int center) - { - uint32 pixwidth = 0, pixheight = 0; /* Image width and height in pixels */ - double ox = 0.0, oy = 0.0; /* Offset from current Postscript origin */ - double pswidth, psheight; /* Original raw image width and height in points */ - double view_width, view_height; /* Viewport width and height in points */ - double scale = 1.0; - double left_offset = lm * PS_UNIT_SIZE; - double bottom_offset = bm * PS_UNIT_SIZE; - uint32 subfiletype; - uint16* sampleinfo; - static int npages = 0; - - if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox)) - ox = 0; - if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy)) - oy = 0; - - /* Consolidated all the tag information into one code segment, Richard Nolde */ - do { - tf_numberstrips = TIFFNumberOfStrips(tif); - TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &tf_rowsperstrip); - TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample); - TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfiguration); - TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression); - TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo); - alpha = (extrasamples == 1 && sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); - if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) - { - switch (samplesperpixel - extrasamples) - { - case 1: if (isCCITTCompression(tif)) - photometric = PHOTOMETRIC_MINISWHITE; - else - photometric = PHOTOMETRIC_MINISBLACK; - break; - case 3: photometric = PHOTOMETRIC_RGB; - break; - case 4: photometric = PHOTOMETRIC_SEPARATED; - break; - } - } - - /* Read image tags for width and height in pixels pixwidth, pixheight, - * and convert to points pswidth, psheight - */ - setupPageState(tif, &pixwidth, &pixheight, &pswidth, &psheight); - view_width = pswidth; - view_height = psheight; - - if (get_viewport (pgwidth, pgheight, pswidth, psheight, &view_width, &view_height, rotation)) - { - TIFFError("get_viewport", "Unable to set image viewport"); - return (1); - } - - /* Write the Postscript file header with Bounding Box and Page Size definitions */ - if (psStart(fd, npages, auto_rotate, &rotation, &scale, ox, oy, - pgwidth, pgheight, view_width, view_height, pswidth, psheight, - left_offset, bottom_offset)) - return (-1); - - if (checkImage(tif)) /* Aborts if unsupported image parameters */ - { - tf_bytesperrow = TIFFScanlineSize(tif); - - /* Set viewport clipping and scaling options */ - if ((maxPageHeight) || (maxPageWidth) || (pgwidth != 0) || (pgheight != 0)) - { - if ((maxPageHeight) || (maxPageWidth)) /* used -H or -W option */ - { - if (psMaskImage(fd, tif, rotation, center, &npages, pixwidth, pixheight, - left_offset, bottom_offset, pgwidth, pgheight, - pswidth, psheight, scale) < 0) - return (-1); - } - else /* N.B. Setting maxPageHeight no longer sets pgheight */ - { - if (pgwidth != 0 || pgheight != 0) - { - /* User did not specify a maxium page height or width using -H or -W flag - * but did use -h or -w flag to scale to a specific size page. - */ - npages++; - fprintf(fd, "%%%%Page: %d %d\n", npages, npages); - - if (!generateEPSF && ( level2 || level3 )) - { - /* Write out the PageSize info for non EPS files */ - if (psPageSize(fd, rotation, pgwidth, pgheight, - view_width, view_height, pswidth, psheight)) - return (-1); - } - fprintf(fd, "gsave\n"); - fprintf(fd, "100 dict begin\n"); - if (psScaleImage(fd, scale, rotation, center, view_width, view_height, - pswidth, psheight, left_offset, bottom_offset)) - return (-1); - - PSpage(fd, tif, pixwidth, pixheight); - fprintf(fd, "end\n"); - fprintf(fd, "grestore\n"); - fprintf(fd, "showpage\n"); - } - } - } - else /* Simple rotation: user did not use -H, -W, -h or -w */ - { - npages++; - fprintf(fd, "%%%%Page: %d %d\n", npages, npages); - - if (!generateEPSF && ( level2 || level3 )) - { - /* Write out the PageSize info for non EPS files */ - if (psPageSize(fd, rotation, pgwidth, pgheight, - view_width, view_height, pswidth, psheight)) - return (-1); - } - fprintf(fd, "gsave\n"); - fprintf(fd, "100 dict begin\n"); - if (psRotateImage(fd, rotation, pswidth, psheight, left_offset, bottom_offset)) - return (-1); - - PSpage(fd, tif, pixwidth, pixheight); - fprintf(fd, "end\n"); - fprintf(fd, "grestore\n"); - fprintf(fd, "showpage\n"); - } - } - if (generateEPSF) - break; - if (auto_rotate) - rotation = 0.0; - TIFFGetFieldDefaulted(tif, TIFFTAG_SUBFILETYPE, &subfiletype); - } while (((subfiletype & FILETYPE_PAGE) || printAll) && TIFFReadDirectory(tif)); - -return(npages); -} - -static char DuplexPreamble[] = "\ -%%BeginFeature: *Duplex True\n\ -systemdict begin\n\ - /languagelevel where { pop languagelevel } { 1 } ifelse\n\ - 2 ge { 1 dict dup /Duplex true put setpagedevice }\n\ - { statusdict /setduplex known { statusdict begin setduplex true end } if\n\ - } ifelse\n\ -end\n\ -%%EndFeature\n\ -"; - -static char TumblePreamble[] = "\ -%%BeginFeature: *Tumble True\n\ -systemdict begin\n\ - /languagelevel where { pop languagelevel } { 1 } ifelse\n\ - 2 ge { 1 dict dup /Tumble true put setpagedevice }\n\ - { statusdict /settumble known { statusdict begin true settumble end } if\n\ - } ifelse\n\ -end\n\ -%%EndFeature\n\ -"; - -static char AvoidDeadZonePreamble[] = "\ -gsave newpath clippath pathbbox grestore\n\ - 4 2 roll 2 copy translate\n\ - exch 3 1 roll sub 3 1 roll sub exch\n\ - currentpagedevice /PageSize get aload pop\n\ - exch 3 1 roll div 3 1 roll div abs exch abs\n\ - 2 copy gt { exch } if pop\n\ - dup 1 lt { dup scale } { pop } ifelse\n\ -"; - -void -PSHead(FILE *fd, double pagewidth, double pageheight, double xoff, double yoff) -{ - time_t t; - - t = time(0); - fprintf(fd, "%%!PS-Adobe-3.0%s\n", generateEPSF ? " EPSF-3.0" : ""); - fprintf(fd, "%%%%Creator: %s\n", creator ? creator : "tiff2ps"); - fprintf(fd, "%%%%Title: %s\n", title ? title : filename); - fprintf(fd, "%%%%CreationDate: %s", ctime(&t)); - fprintf(fd, "%%%%DocumentData: Clean7Bit\n"); - /* NB: should use PageBoundingBox for each page instead of BoundingBox * - * PageBoundingBox DSC added in PSPageSize function, R Nolde 09-01-2010 - */ - fprintf(fd, "%%%%Origin: %ld %ld\n", (long) xoff, (long) yoff); - fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n", - (long) ceil(pagewidth), (long) ceil(pageheight)); - - fprintf(fd, "%%%%LanguageLevel: %d\n", (level3 ? 3 : (level2 ? 2 : 1))); - if (generateEPSF == TRUE) - fprintf(fd, "%%%%Pages: 1 1\n"); - else - fprintf(fd, "%%%%Pages: (atend)\n"); - fprintf(fd, "%%%%EndComments\n"); - if (generateEPSF == FALSE) - { - fprintf(fd, "%%%%BeginSetup\n"); - if (PSduplex) - fprintf(fd, "%s", DuplexPreamble); - if (PStumble) - fprintf(fd, "%s", TumblePreamble); - if (PSavoiddeadzone && (level2 || level3)) - fprintf(fd, "%s", AvoidDeadZonePreamble); - fprintf(fd, "%%%%EndSetup\n"); - } -} - -void -PSTail(FILE *fd, int npages) -{ - fprintf(fd, "%%%%Trailer\n"); - if (generateEPSF == FALSE) - fprintf(fd, "%%%%Pages: %d\n", npages); - fprintf(fd, "%%%%EOF\n"); -} - -static int -checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b) -{ - (void) tif; - while (n-- > 0) - if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) - return (16); - TIFFWarning(filename, "Assuming 8-bit colormap"); - return (8); -} - -static void -PS_Lvl2colorspace(FILE* fd, TIFF* tif) -{ - uint16 *rmap, *gmap, *bmap; - int i, num_colors; - const char * colorspace_p; - - switch ( photometric ) - { - case PHOTOMETRIC_SEPARATED: - colorspace_p = "CMYK"; - break; - - case PHOTOMETRIC_RGB: - colorspace_p = "RGB"; - break; - - default: - colorspace_p = "Gray"; - } - - /* - * Set up PostScript Level 2 colorspace according to - * section 4.8 in the PostScript refenence manual. - */ - fputs("% PostScript Level 2 only.\n", fd); - if (photometric != PHOTOMETRIC_PALETTE) { - if (photometric == PHOTOMETRIC_YCBCR) { - /* MORE CODE HERE */ - } - fprintf(fd, "/Device%s setcolorspace\n", colorspace_p ); - return; - } - - /* - * Set up an indexed/palette colorspace - */ - num_colors = (1 << bitspersample); - if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { - TIFFError(filename, - "Palette image w/o \"Colormap\" tag"); - return; - } - if (checkcmap(tif, num_colors, rmap, gmap, bmap) == 16) { - /* - * Convert colormap to 8-bits values. - */ -#define CVT(x) (((x) * 255) / ((1L<<16)-1)) - for (i = 0; i < num_colors; i++) { - rmap[i] = CVT(rmap[i]); - gmap[i] = CVT(gmap[i]); - bmap[i] = CVT(bmap[i]); - } -#undef CVT - } - fprintf(fd, "[ /Indexed /DeviceRGB %d", num_colors - 1); - if (ascii85) { - Ascii85Init(); - fputs("\n<~", fd); - ascii85breaklen -= 2; - } else - fputs(" <", fd); - for (i = 0; i < num_colors; i++) { - if (ascii85) { - Ascii85Put((unsigned char)rmap[i], fd); - Ascii85Put((unsigned char)gmap[i], fd); - Ascii85Put((unsigned char)bmap[i], fd); - } else { - fputs((i % 8) ? " " : "\n ", fd); - fprintf(fd, "%02x%02x%02x", - rmap[i], gmap[i], bmap[i]); - } - } - if (ascii85) - Ascii85Flush(fd); - else - fputs(">\n", fd); - fputs("] setcolorspace\n", fd); -} - -static int -PS_Lvl2ImageDict(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - int use_rawdata; - uint32 tile_width, tile_height; - uint16 predictor, minsamplevalue, maxsamplevalue; - int repeat_count; - char im_h[64], im_x[64], im_y[64]; - char * imageOp = "image"; - - if ( useImagemask && (bitspersample == 1) ) - imageOp = "imagemask"; - - (void)strcpy(im_x, "0"); - (void)snprintf(im_y, sizeof(im_y), "%lu", (long) h); - (void)snprintf(im_h, sizeof(im_h), "%lu", (long) h); - tile_width = w; - tile_height = h; - if (TIFFIsTiled(tif)) { - repeat_count = TIFFNumberOfTiles(tif); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height); - if (tile_width > w || tile_height > h || - (w % tile_width) != 0 || (h % tile_height != 0)) { - /* - * The tiles does not fit image width and height. - * Set up a clip rectangle for the image unit square. - */ - fputs("0 0 1 1 rectclip\n", fd); - } - if (tile_width < w) { - fputs("/im_x 0 def\n", fd); - (void)strcpy(im_x, "im_x neg"); - } - if (tile_height < h) { - fputs("/im_y 0 def\n", fd); - (void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h); - } - } else { - repeat_count = tf_numberstrips; - tile_height = tf_rowsperstrip; - if (tile_height > h) - tile_height = h; - if (repeat_count > 1) { - fputs("/im_y 0 def\n", fd); - fprintf(fd, "/im_h %lu def\n", - (unsigned long) tile_height); - (void)strcpy(im_h, "im_h"); - (void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h); - } - } - - /* - * Output start of exec block - */ - fputs("{ % exec\n", fd); - - if (repeat_count > 1) - fprintf(fd, "%d { %% repeat\n", repeat_count); - - /* - * Output filter options and image dictionary. - */ - if (ascii85) - fputs(" /im_stream currentfile /ASCII85Decode filter def\n", - fd); - fputs(" <<\n", fd); - fputs(" /ImageType 1\n", fd); - fprintf(fd, " /Width %lu\n", (unsigned long) tile_width); - /* - * Workaround for some software that may crash when last strip - * of image contains fewer number of scanlines than specified - * by the `/Height' variable. So for stripped images with multiple - * strips we will set `/Height' as `im_h', because one is - * recalculated for each strip - including the (smaller) final strip. - * For tiled images and images with only one strip `/Height' will - * contain number of scanlines in tile (or image height in case of - * one-stripped image). - */ - if (TIFFIsTiled(tif) || tf_numberstrips == 1) - fprintf(fd, " /Height %lu\n", (unsigned long) tile_height); - else - fprintf(fd, " /Height im_h\n"); - - if (planarconfiguration == PLANARCONFIG_SEPARATE && samplesperpixel > 1) - fputs(" /MultipleDataSources true\n", fd); - fprintf(fd, " /ImageMatrix [ %lu 0 0 %ld %s %s ]\n", - (unsigned long) w, - (long)h, im_x, im_y); - fprintf(fd, " /BitsPerComponent %d\n", bitspersample); - fprintf(fd, " /Interpolate %s\n", interpolate ? "true" : "false"); - - switch (samplesperpixel - extrasamples) { - case 1: - switch (photometric) { - case PHOTOMETRIC_MINISBLACK: - fputs(" /Decode [0 1]\n", fd); - break; - case PHOTOMETRIC_MINISWHITE: - switch (compression) { - case COMPRESSION_CCITTRLE: - case COMPRESSION_CCITTRLEW: - case COMPRESSION_CCITTFAX3: - case COMPRESSION_CCITTFAX4: - /* - * Manage inverting with /Blackis1 flag - * since there migth be uncompressed parts - */ - fputs(" /Decode [0 1]\n", fd); - break; - default: - /* - * ERROR... - */ - fputs(" /Decode [1 0]\n", fd); - break; - } - break; - case PHOTOMETRIC_PALETTE: - TIFFGetFieldDefaulted(tif, TIFFTAG_MINSAMPLEVALUE, - &minsamplevalue); - TIFFGetFieldDefaulted(tif, TIFFTAG_MAXSAMPLEVALUE, - &maxsamplevalue); - fprintf(fd, " /Decode [%u %u]\n", - minsamplevalue, maxsamplevalue); - break; - default: - /* - * ERROR ? - */ - fputs(" /Decode [0 1]\n", fd); - break; - } - break; - case 3: - switch (photometric) { - case PHOTOMETRIC_RGB: - fputs(" /Decode [0 1 0 1 0 1]\n", fd); - break; - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - default: - /* - * ERROR?? - */ - fputs(" /Decode [0 1 0 1 0 1]\n", fd); - break; - } - break; - case 4: - /* - * ERROR?? - */ - fputs(" /Decode [0 1 0 1 0 1 0 1]\n", fd); - break; - } - fputs(" /DataSource", fd); - if (planarconfiguration == PLANARCONFIG_SEPARATE && - samplesperpixel > 1) - fputs(" [", fd); - if (ascii85) - fputs(" im_stream", fd); - else - fputs(" currentfile /ASCIIHexDecode filter", fd); - - use_rawdata = TRUE; - switch (compression) { - case COMPRESSION_NONE: /* 1: uncompressed */ - break; - case COMPRESSION_CCITTRLE: /* 2: CCITT modified Huffman RLE */ - case COMPRESSION_CCITTRLEW: /* 32771: #1 w/ word alignment */ - case COMPRESSION_CCITTFAX3: /* 3: CCITT Group 3 fax encoding */ - case COMPRESSION_CCITTFAX4: /* 4: CCITT Group 4 fax encoding */ - fputs("\n\t<<\n", fd); - if (compression == COMPRESSION_CCITTFAX3) { - uint32 g3_options; - - fputs("\t /EndOfLine true\n", fd); - fputs("\t /EndOfBlock false\n", fd); - if (!TIFFGetField(tif, TIFFTAG_GROUP3OPTIONS, - &g3_options)) - g3_options = 0; - if (g3_options & GROUP3OPT_2DENCODING) - fprintf(fd, "\t /K %s\n", im_h); - if (g3_options & GROUP3OPT_UNCOMPRESSED) - fputs("\t /Uncompressed true\n", fd); - if (g3_options & GROUP3OPT_FILLBITS) - fputs("\t /EncodedByteAlign true\n", fd); - } - if (compression == COMPRESSION_CCITTFAX4) { - uint32 g4_options; - - fputs("\t /K -1\n", fd); - TIFFGetFieldDefaulted(tif, TIFFTAG_GROUP4OPTIONS, - &g4_options); - if (g4_options & GROUP4OPT_UNCOMPRESSED) - fputs("\t /Uncompressed true\n", fd); - } - if (!(tile_width == w && w == 1728U)) - fprintf(fd, "\t /Columns %lu\n", - (unsigned long) tile_width); - fprintf(fd, "\t /Rows %s\n", im_h); - if (compression == COMPRESSION_CCITTRLE || - compression == COMPRESSION_CCITTRLEW) { - fputs("\t /EncodedByteAlign true\n", fd); - fputs("\t /EndOfBlock false\n", fd); - } - if (photometric == PHOTOMETRIC_MINISBLACK) - fputs("\t /BlackIs1 true\n", fd); - fprintf(fd, "\t>> /CCITTFaxDecode filter"); - break; - case COMPRESSION_LZW: /* 5: Lempel-Ziv & Welch */ - TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); - if (predictor == 2) { - fputs("\n\t<<\n", fd); - fprintf(fd, "\t /Predictor %u\n", predictor); - fprintf(fd, "\t /Columns %lu\n", - (unsigned long) tile_width); - fprintf(fd, "\t /Colors %u\n", samplesperpixel); - fprintf(fd, "\t /BitsPerComponent %u\n", - bitspersample); - fputs("\t>>", fd); - } - fputs(" /LZWDecode filter", fd); - break; - case COMPRESSION_DEFLATE: /* 5: ZIP */ - case COMPRESSION_ADOBE_DEFLATE: - if ( level3 ) { - TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); - if (predictor > 1) { - fprintf(fd, "\t %% PostScript Level 3 only."); - fputs("\n\t<<\n", fd); - fprintf(fd, "\t /Predictor %u\n", predictor); - fprintf(fd, "\t /Columns %lu\n", - (unsigned long) tile_width); - fprintf(fd, "\t /Colors %u\n", samplesperpixel); - fprintf(fd, "\t /BitsPerComponent %u\n", - bitspersample); - fputs("\t>>", fd); - } - fputs(" /FlateDecode filter", fd); - } else { - use_rawdata = FALSE ; - } - break; - case COMPRESSION_PACKBITS: /* 32773: Macintosh RLE */ - fputs(" /RunLengthDecode filter", fd); - use_rawdata = TRUE; - break; - case COMPRESSION_OJPEG: /* 6: !6.0 JPEG */ - case COMPRESSION_JPEG: /* 7: %JPEG DCT compression */ -#ifdef notdef - /* - * Code not tested yet - */ - fputs(" /DCTDecode filter", fd); - use_rawdata = TRUE; -#else - use_rawdata = FALSE; -#endif - break; - case COMPRESSION_NEXT: /* 32766: NeXT 2-bit RLE */ - case COMPRESSION_THUNDERSCAN: /* 32809: ThunderScan RLE */ - case COMPRESSION_PIXARFILM: /* 32908: Pixar companded 10bit LZW */ - case COMPRESSION_JBIG: /* 34661: ISO JBIG */ - use_rawdata = FALSE; - break; - case COMPRESSION_SGILOG: /* 34676: SGI LogL or LogLuv */ - case COMPRESSION_SGILOG24: /* 34677: SGI 24-bit LogLuv */ - use_rawdata = FALSE; - break; - default: - /* - * ERROR... - */ - use_rawdata = FALSE; - break; - } - if (planarconfiguration == PLANARCONFIG_SEPARATE && - samplesperpixel > 1) { - uint16 i; - - /* - * NOTE: This code does not work yet... - */ - for (i = 1; i < samplesperpixel; i++) - fputs(" dup", fd); - fputs(" ]", fd); - } - - fprintf( fd, "\n >> %s\n", imageOp ); - if (ascii85) - fputs(" im_stream status { im_stream flushfile } if\n", fd); - if (repeat_count > 1) { - if (tile_width < w) { - fprintf(fd, " /im_x im_x %lu add def\n", - (unsigned long) tile_width); - if (tile_height < h) { - fprintf(fd, " im_x %lu ge {\n", - (unsigned long) w); - fputs(" /im_x 0 def\n", fd); - fprintf(fd, " /im_y im_y %lu add def\n", - (unsigned long) tile_height); - fputs(" } if\n", fd); - } - } - if (tile_height < h) { - if (tile_width >= w) { - fprintf(fd, " /im_y im_y %lu add def\n", - (unsigned long) tile_height); - if (!TIFFIsTiled(tif)) { - fprintf(fd, " /im_h %lu im_y sub", - (unsigned long) h); - fprintf(fd, " dup %lu gt { pop", - (unsigned long) tile_height); - fprintf(fd, " %lu } if def\n", - (unsigned long) tile_height); - } - } - } - fputs("} repeat\n", fd); - } - /* - * End of exec function - */ - fputs("}\n", fd); - - return(use_rawdata); -} - -/* Flip the byte order of buffers with 16 bit samples */ -static void -PS_FlipBytes(unsigned char* buf, tsize_t count) -{ - int i; - unsigned char temp; - - if (count <= 0 || bitspersample <= 8) { - return; - } - - count--; - - for (i = 0; i < count; i += 2) { - temp = buf[i]; - buf[i] = buf[i + 1]; - buf[i + 1] = temp; - } -} - -#define MAXLINE 36 - -int -PS_Lvl2page(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - uint16 fillorder; - int use_rawdata, tiled_image, breaklen = MAXLINE; - uint32 chunk_no, num_chunks; - uint64 *bc; - unsigned char *buf_data, *cp; - tsize_t chunk_size, byte_count; - -#if defined( EXP_ASCII85ENCODER ) - tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ - uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ -#endif - - PS_Lvl2colorspace(fd, tif); - use_rawdata = PS_Lvl2ImageDict(fd, tif, w, h); - -/* See http://bugzilla.remotesensing.org/show_bug.cgi?id=80 */ -#ifdef ENABLE_BROKEN_BEGINENDDATA - fputs("%%BeginData:\n", fd); -#endif - fputs("exec\n", fd); - - tiled_image = TIFFIsTiled(tif); - if (tiled_image) { - num_chunks = TIFFNumberOfTiles(tif); - TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc); - } else { - num_chunks = TIFFNumberOfStrips(tif); - TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); - } - - if (use_rawdata) { - chunk_size = (tsize_t) bc[0]; - for (chunk_no = 1; chunk_no < num_chunks; chunk_no++) - if ((tsize_t) bc[chunk_no] > chunk_size) - chunk_size = (tsize_t) bc[chunk_no]; - } else { - if (tiled_image) - chunk_size = TIFFTileSize(tif); - else - chunk_size = TIFFStripSize(tif); - } - buf_data = (unsigned char *)_TIFFmalloc(chunk_size); - if (!buf_data) { - TIFFError(filename, "Can't alloc %lu bytes for %s.", - (unsigned long) chunk_size, tiled_image ? "tiles" : "strips"); - return(FALSE); - } - -#if defined( EXP_ASCII85ENCODER ) - if ( ascii85 ) { - /* - * Allocate a buffer to hold the ASCII85 encoded data. Note - * that it is allocated with sufficient room to hold the - * encoded data (5*chunk_size/4) plus the EOD marker (+8) - * and formatting line breaks. The line breaks are more - * than taken care of by using 6*chunk_size/4 rather than - * 5*chunk_size/4. - */ - - ascii85_p = _TIFFmalloc( (chunk_size+(chunk_size/2)) + 8 ); - - if ( !ascii85_p ) { - _TIFFfree( buf_data ); - - TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); - return ( FALSE ); - } - } -#endif - - TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); - for (chunk_no = 0; chunk_no < num_chunks; chunk_no++) { - if (ascii85) - Ascii85Init(); - else - breaklen = MAXLINE; - if (use_rawdata) { - if (tiled_image) - byte_count = TIFFReadRawTile(tif, chunk_no, - buf_data, chunk_size); - else - byte_count = TIFFReadRawStrip(tif, chunk_no, - buf_data, chunk_size); - if (fillorder == FILLORDER_LSB2MSB) - TIFFReverseBits(buf_data, byte_count); - } else { - if (tiled_image) - byte_count = TIFFReadEncodedTile(tif, - chunk_no, buf_data, - chunk_size); - else - byte_count = TIFFReadEncodedStrip(tif, - chunk_no, buf_data, - chunk_size); - } - if (byte_count < 0) { - TIFFError(filename, "Can't read %s %d.", - tiled_image ? "tile" : "strip", chunk_no); - if (ascii85) - Ascii85Put('\0', fd); - } - /* - * for 16 bits, the two bytes must be most significant - * byte first - */ - if (bitspersample == 16 && !TIFFIsBigEndian(tif)) { - PS_FlipBytes(buf_data, byte_count); - } - /* - * For images with alpha, matte against a white background; - * i.e. Cback * (1 - Aimage) where Cback = 1. We will fill the - * lower part of the buffer with the modified values. - * - * XXX: needs better solution - */ - if (alpha) { - int adjust, i, j = 0; - int ncomps = samplesperpixel - extrasamples; - for (i = 0; i < byte_count; i+=samplesperpixel) { - adjust = 255 - buf_data[i + ncomps]; - switch (ncomps) { - case 1: - buf_data[j++] = buf_data[i] + adjust; - break; - case 2: - buf_data[j++] = buf_data[i] + adjust; - buf_data[j++] = buf_data[i+1] + adjust; - break; - case 3: - buf_data[j++] = buf_data[i] + adjust; - buf_data[j++] = buf_data[i+1] + adjust; - buf_data[j++] = buf_data[i+2] + adjust; - break; - } - } - byte_count -= j; - } - - if (ascii85) { -#if defined( EXP_ASCII85ENCODER ) - ascii85_l = Ascii85EncodeBlock(ascii85_p, 1, buf_data, byte_count ); - - if ( ascii85_l > 0 ) - fwrite( ascii85_p, ascii85_l, 1, fd ); -#else - for (cp = buf_data; byte_count > 0; byte_count--) - Ascii85Put(*cp++, fd); -#endif - } - else - { - for (cp = buf_data; byte_count > 0; byte_count--) { - putc(hex[((*cp)>>4)&0xf], fd); - putc(hex[(*cp)&0xf], fd); - cp++; - - if (--breaklen <= 0) { - putc('\n', fd); - breaklen = MAXLINE; - } - } - } - - if ( !ascii85 ) { - if ( level2 || level3 ) - putc( '>', fd ); - putc('\n', fd); - } -#if !defined( EXP_ASCII85ENCODER ) - else - Ascii85Flush(fd); -#endif - } - -#if defined( EXP_ASCII85ENCODER ) - if ( ascii85_p ) - _TIFFfree( ascii85_p ); -#endif - - _TIFFfree(buf_data); -#ifdef ENABLE_BROKEN_BEGINENDDATA - fputs("%%EndData\n", fd); -#endif - return(TRUE); -} - -void -PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - char * imageOp = "image"; - - if ( useImagemask && (bitspersample == 1) ) - imageOp = "imagemask"; - - if ((level2 || level3) && PS_Lvl2page(fd, tif, w, h)) - return; - ps_bytesperrow = tf_bytesperrow - (extrasamples * bitspersample / 8)*w; - switch (photometric) { - case PHOTOMETRIC_RGB: - if (planarconfiguration == PLANARCONFIG_CONTIG) { - fprintf(fd, "%s", RGBcolorimage); - PSColorContigPreamble(fd, w, h, 3); - PSDataColorContig(fd, tif, w, h, 3); - } else { - PSColorSeparatePreamble(fd, w, h, 3); - PSDataColorSeparate(fd, tif, w, h, 3); - } - break; - case PHOTOMETRIC_SEPARATED: - /* XXX should emit CMYKcolorimage */ - if (planarconfiguration == PLANARCONFIG_CONTIG) { - PSColorContigPreamble(fd, w, h, 4); - PSDataColorContig(fd, tif, w, h, 4); - } else { - PSColorSeparatePreamble(fd, w, h, 4); - PSDataColorSeparate(fd, tif, w, h, 4); - } - break; - case PHOTOMETRIC_PALETTE: - fprintf(fd, "%s", RGBcolorimage); - PhotoshopBanner(fd, w, h, 1, 3, "false 3 colorimage"); - fprintf(fd, "/scanLine %ld string def\n", - (long) ps_bytesperrow * 3L); - fprintf(fd, "%lu %lu 8\n", - (unsigned long) w, (unsigned long) h); - fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", - (unsigned long) w, (unsigned long) h, (unsigned long) h); - fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n"); - fprintf(fd, "false 3 colorimage\n"); - PSDataPalette(fd, tif, w, h); - break; - case PHOTOMETRIC_MINISBLACK: - case PHOTOMETRIC_MINISWHITE: - PhotoshopBanner(fd, w, h, 1, 1, imageOp); - fprintf(fd, "/scanLine %ld string def\n", - (long) ps_bytesperrow); - fprintf(fd, "%lu %lu %d\n", - (unsigned long) w, (unsigned long) h, bitspersample); - fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", - (unsigned long) w, (unsigned long) h, (unsigned long) h); - fprintf(fd, - "{currentfile scanLine readhexstring pop} bind\n"); - fprintf(fd, "%s\n", imageOp); - PSDataBW(fd, tif, w, h); - break; - } - putc('\n', fd); -} - -void -PSColorContigPreamble(FILE* fd, uint32 w, uint32 h, int nc) -{ - ps_bytesperrow = nc * (tf_bytesperrow / samplesperpixel); - PhotoshopBanner(fd, w, h, 1, nc, "false %d colorimage"); - fprintf(fd, "/line %ld string def\n", (long) ps_bytesperrow); - fprintf(fd, "%lu %lu %d\n", - (unsigned long) w, (unsigned long) h, bitspersample); - fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", - (unsigned long) w, (unsigned long) h, (unsigned long) h); - fprintf(fd, "{currentfile line readhexstring pop} bind\n"); - fprintf(fd, "false %d colorimage\n", nc); -} - -void -PSColorSeparatePreamble(FILE* fd, uint32 w, uint32 h, int nc) -{ - int i; - - PhotoshopBanner(fd, w, h, ps_bytesperrow, nc, "true %d colorimage"); - for (i = 0; i < nc; i++) - fprintf(fd, "/line%d %ld string def\n", - i, (long) ps_bytesperrow); - fprintf(fd, "%lu %lu %d\n", - (unsigned long) w, (unsigned long) h, bitspersample); - fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n", - (unsigned long) w, (unsigned long) h, (unsigned long) h); - for (i = 0; i < nc; i++) - fprintf(fd, "{currentfile line%d readhexstring pop}bind\n", i); - fprintf(fd, "true %d colorimage\n", nc); -} - -#define DOBREAK(len, howmany, fd) \ - if (((len) -= (howmany)) <= 0) { \ - putc('\n', fd); \ - (len) = MAXLINE-(howmany); \ - } -#define PUTHEX(c,fd) putc(hex[((c)>>4)&0xf],fd); putc(hex[(c)&0xf],fd) - -void -PSDataColorContig(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) -{ - uint32 row; - int breaklen = MAXLINE, es = samplesperpixel - nc; - tsize_t cc; - unsigned char *tf_buf; - unsigned char *cp, c; - - (void) w; - tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); - if (tf_buf == NULL) { - TIFFError(filename, "No space for scanline buffer"); - return; - } - for (row = 0; row < h; row++) { - if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) - break; - cp = tf_buf; - /* - * for 16 bits, the two bytes must be most significant - * byte first - */ - if (bitspersample == 16 && !HOST_BIGENDIAN) { - PS_FlipBytes(cp, tf_bytesperrow); - } - if (alpha) { - int adjust; - cc = 0; - for (; cc < tf_bytesperrow; cc += samplesperpixel) { - DOBREAK(breaklen, nc, fd); - /* - * For images with alpha, matte against - * a white background; i.e. - * Cback * (1 - Aimage) - * where Cback = 1. - */ - adjust = 255 - cp[nc]; - switch (nc) { - case 4: c = *cp++ + adjust; PUTHEX(c,fd); - case 3: c = *cp++ + adjust; PUTHEX(c,fd); - case 2: c = *cp++ + adjust; PUTHEX(c,fd); - case 1: c = *cp++ + adjust; PUTHEX(c,fd); - } - cp += es; - } - } else { - cc = 0; - for (; cc < tf_bytesperrow; cc += samplesperpixel) { - DOBREAK(breaklen, nc, fd); - switch (nc) { - case 4: c = *cp++; PUTHEX(c,fd); - case 3: c = *cp++; PUTHEX(c,fd); - case 2: c = *cp++; PUTHEX(c,fd); - case 1: c = *cp++; PUTHEX(c,fd); - } - cp += es; - } - } - } - _TIFFfree((char *) tf_buf); -} - -void -PSDataColorSeparate(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) -{ - uint32 row; - int breaklen = MAXLINE; - tsize_t cc; - tsample_t s, maxs; - unsigned char *tf_buf; - unsigned char *cp, c; - - (void) w; - tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); - if (tf_buf == NULL) { - TIFFError(filename, "No space for scanline buffer"); - return; - } - maxs = (samplesperpixel > nc ? nc : samplesperpixel); - for (row = 0; row < h; row++) { - for (s = 0; s < maxs; s++) { - if (TIFFReadScanline(tif, tf_buf, row, s) < 0) - break; - for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { - DOBREAK(breaklen, 1, fd); - c = *cp++; - PUTHEX(c,fd); - } - } - } - _TIFFfree((char *) tf_buf); -} - -#define PUTRGBHEX(c,fd) \ - PUTHEX(rmap[c],fd); PUTHEX(gmap[c],fd); PUTHEX(bmap[c],fd) - -void -PSDataPalette(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - uint16 *rmap, *gmap, *bmap; - uint32 row; - int breaklen = MAXLINE, nc; - tsize_t cc; - unsigned char *tf_buf; - unsigned char *cp, c; - - (void) w; - if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { - TIFFError(filename, "Palette image w/o \"Colormap\" tag"); - return; - } - switch (bitspersample) { - case 8: case 4: case 2: case 1: - break; - default: - TIFFError(filename, "Depth %d not supported", bitspersample); - return; - } - nc = 3 * (8 / bitspersample); - tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); - if (tf_buf == NULL) { - TIFFError(filename, "No space for scanline buffer"); - return; - } - if (checkcmap(tif, 1<= 0; i--) { - rmap[i] = CVT(rmap[i]); - gmap[i] = CVT(gmap[i]); - bmap[i] = CVT(bmap[i]); - } -#undef CVT - } - for (row = 0; row < h; row++) { - if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) - break; - for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { - DOBREAK(breaklen, nc, fd); - switch (bitspersample) { - case 8: - c = *cp++; PUTRGBHEX(c, fd); - break; - case 4: - c = *cp++; PUTRGBHEX(c&0xf, fd); - c >>= 4; PUTRGBHEX(c, fd); - break; - case 2: - c = *cp++; PUTRGBHEX(c&0x3, fd); - c >>= 2; PUTRGBHEX(c&0x3, fd); - c >>= 2; PUTRGBHEX(c&0x3, fd); - c >>= 2; PUTRGBHEX(c, fd); - break; - case 1: - c = *cp++; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c&0x1, fd); - c >>= 1; PUTRGBHEX(c, fd); - break; - } - } - } - _TIFFfree((char *) tf_buf); -} - -void -PSDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - int breaklen = MAXLINE; - unsigned char* tf_buf; - unsigned char* cp; - tsize_t stripsize = TIFFStripSize(tif); - tstrip_t s; - -#if defined( EXP_ASCII85ENCODER ) - tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ - uint8 *ascii85_p = 0; /* Holds ASCII85 encoded data */ -#endif - - (void) w; (void) h; - tf_buf = (unsigned char *) _TIFFmalloc(stripsize); - if (tf_buf == NULL) { - TIFFError(filename, "No space for scanline buffer"); - return; - } - - // FIXME - memset(tf_buf, 0, stripsize); - -#if defined( EXP_ASCII85ENCODER ) - if ( ascii85 ) { - /* - * Allocate a buffer to hold the ASCII85 encoded data. Note - * that it is allocated with sufficient room to hold the - * encoded data (5*stripsize/4) plus the EOD marker (+8) - * and formatting line breaks. The line breaks are more - * than taken care of by using 6*stripsize/4 rather than - * 5*stripsize/4. - */ - - ascii85_p = _TIFFmalloc( (stripsize+(stripsize/2)) + 8 ); - - if ( !ascii85_p ) { - _TIFFfree( tf_buf ); - - TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); - return; - } - } -#endif - - if (ascii85) - Ascii85Init(); - - for (s = 0; s < TIFFNumberOfStrips(tif); s++) { - tmsize_t cc = TIFFReadEncodedStrip(tif, s, tf_buf, stripsize); - if (cc < 0) { - TIFFError(filename, "Can't read strip"); - break; - } - cp = tf_buf; - if (photometric == PHOTOMETRIC_MINISWHITE) { - for (cp += cc; --cp >= tf_buf;) - *cp = ~*cp; - cp++; - } - /* - * for 16 bits, the two bytes must be most significant - * byte first - */ - if (bitspersample == 16 && !HOST_BIGENDIAN) { - PS_FlipBytes(cp, cc); - } - if (ascii85) { -#if defined( EXP_ASCII85ENCODER ) - if (alpha) { - int adjust, i; - for (i = 0; i < cc; i+=2) { - adjust = 255 - cp[i + 1]; - cp[i / 2] = cp[i] + adjust; - } - cc /= 2; - } - - ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, cp, cc ); - - if ( ascii85_l > 0 ) - fwrite( ascii85_p, ascii85_l, 1, fd ); -#else - while (cc-- > 0) - Ascii85Put(*cp++, fd); -#endif /* EXP_ASCII85_ENCODER */ - } else { - unsigned char c; - - if (alpha) { - int adjust; - while (cc-- > 0) { - DOBREAK(breaklen, 1, fd); - /* - * For images with alpha, matte against - * a white background; i.e. - * Cback * (1 - Aimage) - * where Cback = 1. - */ - adjust = 255 - cp[1]; - c = *cp++ + adjust; PUTHEX(c,fd); - cp++, cc--; - } - } else { - while (cc-- > 0) { - c = *cp++; - DOBREAK(breaklen, 1, fd); - PUTHEX(c, fd); - } - } - } - } - - if ( !ascii85 ) - { - if ( level2 || level3) - fputs(">\n", fd); - } -#if !defined( EXP_ASCII85ENCODER ) - else - Ascii85Flush(fd); -#else - if ( ascii85_p ) - _TIFFfree( ascii85_p ); -#endif - - _TIFFfree(tf_buf); -} - -void -PSRawDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) -{ - uint64 *bc; - uint32 bufsize; - int breaklen = MAXLINE; - tmsize_t cc; - uint16 fillorder; - unsigned char *tf_buf; - unsigned char *cp, c; - tstrip_t s; - -#if defined( EXP_ASCII85ENCODER ) - tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ - uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ -#endif - - (void) w; (void) h; - TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); - TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); - - /* - * Find largest strip: - */ - - bufsize = (uint32) bc[0]; - - for ( s = 0; ++s < (tstrip_t)tf_numberstrips; ) { - if ( bc[s] > bufsize ) - bufsize = (uint32) bc[s]; - } - - tf_buf = (unsigned char*) _TIFFmalloc(bufsize); - if (tf_buf == NULL) { - TIFFError(filename, "No space for strip buffer"); - return; - } - -#if defined( EXP_ASCII85ENCODER ) - if ( ascii85 ) { - /* - * Allocate a buffer to hold the ASCII85 encoded data. Note - * that it is allocated with sufficient room to hold the - * encoded data (5*bufsize/4) plus the EOD marker (+8) - * and formatting line breaks. The line breaks are more - * than taken care of by using 6*bufsize/4 rather than - * 5*bufsize/4. - */ - - ascii85_p = _TIFFmalloc( (bufsize+(bufsize/2)) + 8 ); - - if ( !ascii85_p ) { - _TIFFfree( tf_buf ); - - TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); - return; - } - } -#endif - - for (s = 0; s < (tstrip_t) tf_numberstrips; s++) { - cc = TIFFReadRawStrip(tif, s, tf_buf, (tmsize_t) bc[s]); - if (cc < 0) { - TIFFError(filename, "Can't read strip"); - break; - } - if (fillorder == FILLORDER_LSB2MSB) - TIFFReverseBits(tf_buf, cc); - if (!ascii85) { - for (cp = tf_buf; cc > 0; cc--) { - DOBREAK(breaklen, 1, fd); - c = *cp++; - PUTHEX(c, fd); - } - fputs(">\n", fd); - breaklen = MAXLINE; - } else { - Ascii85Init(); -#if defined( EXP_ASCII85ENCODER ) - ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, tf_buf, cc ); - - if ( ascii85_l > 0 ) - fwrite( ascii85_p, ascii85_l, 1, fd ); -#else - for (cp = tf_buf; cc > 0; cc--) - Ascii85Put(*cp++, fd); - Ascii85Flush(fd); -#endif /* EXP_ASCII85ENCODER */ - } - } - _TIFFfree((char *) tf_buf); - -#if defined( EXP_ASCII85ENCODER ) - if ( ascii85_p ) - _TIFFfree( ascii85_p ); -#endif -} - -void -Ascii85Init(void) -{ - ascii85breaklen = 2*MAXLINE; - ascii85count = 0; -} - -static char* -Ascii85Encode(unsigned char* raw) -{ - static char encoded[6]; - uint32 word; - - word = (((raw[0]<<8)+raw[1])<<16) + (raw[2]<<8) + raw[3]; - if (word != 0L) { - uint32 q; - uint16 w1; - - q = word / (85L*85*85*85); /* actually only a byte */ - encoded[0] = (char) (q + '!'); - - word -= q * (85L*85*85*85); q = word / (85L*85*85); - encoded[1] = (char) (q + '!'); - - word -= q * (85L*85*85); q = word / (85*85); - encoded[2] = (char) (q + '!'); - - w1 = (uint16) (word - q*(85L*85)); - encoded[3] = (char) ((w1 / 85) + '!'); - encoded[4] = (char) ((w1 % 85) + '!'); - encoded[5] = '\0'; - } else - encoded[0] = 'z', encoded[1] = '\0'; - return (encoded); -} - -void -Ascii85Put(unsigned char code, FILE* fd) -{ - ascii85buf[ascii85count++] = code; - if (ascii85count >= 4) { - unsigned char* p; - int n; - - for (n = ascii85count, p = ascii85buf; n >= 4; n -= 4, p += 4) { - char* cp; - for (cp = Ascii85Encode(p); *cp; cp++) { - putc(*cp, fd); - if (--ascii85breaklen == 0) { - putc('\n', fd); - ascii85breaklen = 2*MAXLINE; - } - } - } - _TIFFmemcpy(ascii85buf, p, n); - ascii85count = n; - } -} - -void -Ascii85Flush(FILE* fd) -{ - if (ascii85count > 0) { - char* res; - _TIFFmemset(&ascii85buf[ascii85count], 0, 3); - res = Ascii85Encode(ascii85buf); - fwrite(res[0] == 'z' ? "!!!!" : res, ascii85count + 1, 1, fd); - } - fputs("~>\n", fd); -} -#if defined( EXP_ASCII85ENCODER) - -#define A85BREAKCNTR ascii85breaklen -#define A85BREAKLEN (2*MAXLINE) - -/***************************************************************************** -* -* Name: Ascii85EncodeBlock( ascii85_p, f_eod, raw_p, raw_l ) -* -* Description: This routine will encode the raw data in the buffer described -* by raw_p and raw_l into ASCII85 format and store the encoding -* in the buffer given by ascii85_p. -* -* Parameters: ascii85_p - A buffer supplied by the caller which will -* contain the encoded ASCII85 data. -* f_eod - Flag: Nz means to end the encoded buffer with -* an End-Of-Data marker. -* raw_p - Pointer to the buffer of data to be encoded -* raw_l - Number of bytes in raw_p[] to be encoded -* -* Returns: (int) < 0 Error, see errno -* >= 0 Number of bytes written to ascii85_p[]. -* -* Notes: An external variable given by A85BREAKCNTR is used to -* determine when to insert newline characters into the -* encoded data. As each byte is placed into ascii85_p this -* external is decremented. If the variable is decrement to -* or past zero then a newline is inserted into ascii85_p -* and the A85BREAKCNTR is then reset to A85BREAKLEN. -* Note: for efficiency reasons the A85BREAKCNTR variable -* is not actually checked on *every* character -* placed into ascii85_p but often only for every -* 5 characters. -* -* THE CALLER IS RESPONSIBLE FOR ENSURING THAT ASCII85_P[] IS -* SUFFICIENTLY LARGE TO THE ENCODED DATA! -* You will need at least 5 * (raw_l/4) bytes plus space for -* newline characters and space for an EOD marker (if -* requested). A safe calculation is to use 6*(raw_l/4) + 8 -* to size ascii85_p. -* -*****************************************************************************/ - -tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ) - -{ - char ascii85[5]; /* Encoded 5 tuple */ - tsize_t ascii85_l; /* Number of bytes written to ascii85_p[] */ - int rc; /* Return code */ - uint32 val32; /* Unencoded 4 tuple */ - - ascii85_l = 0; /* Nothing written yet */ - - if ( raw_p ) - { - --raw_p; /* Prepare for pre-increment fetches */ - - for ( ; raw_l > 3; raw_l -= 4 ) - { - val32 = *(++raw_p) << 24; - val32 += *(++raw_p) << 16; - val32 += *(++raw_p) << 8; - val32 += *(++raw_p); - - if ( val32 == 0 ) /* Special case */ - { - ascii85_p[ascii85_l] = 'z'; - rc = 1; - } - - else - { - ascii85[4] = (char) ((val32 % 85) + 33); - val32 /= 85; - - ascii85[3] = (char) ((val32 % 85) + 33); - val32 /= 85; - - ascii85[2] = (char) ((val32 % 85) + 33); - val32 /= 85; - - ascii85[1] = (char) ((val32 % 85) + 33); - ascii85[0] = (char) ((val32 / 85) + 33); - - _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, sizeof(ascii85) ); - rc = sizeof(ascii85); - } - - ascii85_l += rc; - - if ( (A85BREAKCNTR -= rc) <= 0 ) - { - ascii85_p[ascii85_l] = '\n'; - ++ascii85_l; - A85BREAKCNTR = A85BREAKLEN; - } - } - - /* - * Output any straggler bytes: - */ - - if ( raw_l > 0 ) - { - tsize_t len; /* Output this many bytes */ - - len = raw_l + 1; - val32 = *++raw_p << 24; /* Prime the pump */ - - if ( --raw_l > 0 ) val32 += *(++raw_p) << 16; - if ( --raw_l > 0 ) val32 += *(++raw_p) << 8; - - val32 /= 85; - - ascii85[3] = (char) ((val32 % 85) + 33); - val32 /= 85; - - ascii85[2] = (char) ((val32 % 85) + 33); - val32 /= 85; - - ascii85[1] = (char) ((val32 % 85) + 33); - ascii85[0] = (char) ((val32 / 85) + 33); - - _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, len ); - ascii85_l += len; - } - } - - /* - * If requested add an ASCII85 End Of Data marker: - */ - - if ( f_eod ) - { - ascii85_p[ascii85_l++] = '~'; - ascii85_p[ascii85_l++] = '>'; - ascii85_p[ascii85_l++] = '\n'; - } - - return ( ascii85_l ); - -} /* Ascii85EncodeBlock() */ - -#endif /* EXP_ASCII85ENCODER */ - - -char* stuff[] = { -"usage: tiff2ps [options] input.tif ...", -"where options are:", -" -1 generate PostScript Level 1 (default)", -" -2 generate PostScript Level 2", -" -3 generate PostScript Level 3", -" -8 disable use of ASCII85 encoding with PostScript Level 2/3", -" -a convert all directories in file (default is first), Not EPS", -" -b # set the bottom margin to # inches", -" -c center image (-b and -l still add to this)", -" -C name set postscript document creator name", -" -d # set initial directory to # counting from zero", -" -D enable duplex printing (two pages per sheet of paper)", -" -e generate Encapsulated PostScript (EPS) (implies -z)", -" -h # set printed page height to # inches (no default)", -" -w # set printed page width to # inches (no default)", -" -H # split image if height is more than # inches", -" -W # split image if width is more than # inches", -" -L # overLap split images by # inches", -" -i # enable/disable (Nz/0) pixel interpolation (default: enable)", -" -l # set the left margin to # inches", -" -m use \"imagemask\" operator instead of \"image\"", -" -o # convert directory at file offset # bytes", -" -O file write PostScript to file instead of standard output", -" -p generate regular (non-encapsulated) PostScript", -" -P L or P set optional PageOrientation DSC comment to Landscape or Portrait", -" -r # or auto rotate by 90, 180, 270 degrees or auto", -" -s generate PostScript for a single image", -" -t name set postscript document title. Otherwise the filename is used", -" -T print pages for top edge binding", -" -x override resolution units as centimeters", -" -y override resolution units as inches", -" -z enable printing in the deadzone (only for PostScript Level 2/3)", -NULL -}; - -static void -usage(int code) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(code); -} - diff --git a/tiff/tools/tiff2rgba.c b/tiff/tools/tiff2rgba.c deleted file mode 100755 index 32071db..0000000 --- a/tiff/tools/tiff2rgba.c +++ /dev/null @@ -1,541 +0,0 @@ -/* $Id: tiff2rgba.c,v 1.20 2014-06-08 03:37:02 bfriesen Exp $ */ - -/* - * Copyright (c) 1991-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffiop.h" -#include "tiffio.h" - -#define streq(a,b) (strcmp(a,b) == 0) -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) - -#ifndef howmany -#define howmany(x, y) (((x)+((y)-1))/(y)) -#endif -#define roundup(x, y) (howmany(x,y)*((uint32)(y))) - -uint16 compression = COMPRESSION_PACKBITS; -uint32 rowsperstrip = (uint32) -1; -int process_by_block = 0; /* default is whole image at once */ -int no_alpha = 0; -int bigtiff_output = 0; - - -static int tiffcvt(TIFF* in, TIFF* out); -static void usage(int code); - -int -main(int argc, char* argv[]) -{ - TIFF *in, *out; - int c; - extern int optind; - extern char *optarg; - - while ((c = getopt(argc, argv, "c:r:t:bn8")) != -1) - switch (c) { - case 'b': - process_by_block = 1; - break; - - case 'c': - if (streq(optarg, "none")) - compression = COMPRESSION_NONE; - else if (streq(optarg, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (streq(optarg, "lzw")) - compression = COMPRESSION_LZW; - else if (streq(optarg, "jpeg")) - compression = COMPRESSION_JPEG; - else if (streq(optarg, "zip")) - compression = COMPRESSION_DEFLATE; - else - usage(-1); - break; - - case 'r': - rowsperstrip = atoi(optarg); - break; - - case 't': - rowsperstrip = atoi(optarg); - break; - - case 'n': - no_alpha = 1; - break; - - case '8': - bigtiff_output = 1; - break; - - case '?': - usage(0); - /*NOTREACHED*/ - } - - if (argc - optind < 2) - usage(-1); - - out = TIFFOpen(argv[argc-1], bigtiff_output?"w8":"w"); - if (out == NULL) - return (-2); - - for (; optind < argc-1; optind++) { - in = TIFFOpen(argv[optind], "r"); - if (in != NULL) { - do { - if (!tiffcvt(in, out) || - !TIFFWriteDirectory(out)) { - (void) TIFFClose(out); - (void) TIFFClose(in); - return (1); - } - } while (TIFFReadDirectory(in)); - (void) TIFFClose(in); - } - } - (void) TIFFClose(out); - return (0); -} - -static int -cvt_by_tile( TIFF *in, TIFF *out ) - -{ - uint32* raster; /* retrieve RGBA image */ - uint32 width, height; /* image width & height */ - uint32 tile_width, tile_height; - uint32 row, col; - uint32 *wrk_line; - int ok = 1; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height); - - if( !TIFFGetField(in, TIFFTAG_TILEWIDTH, &tile_width) - || !TIFFGetField(in, TIFFTAG_TILELENGTH, &tile_height) ) { - TIFFError(TIFFFileName(in), "Source image not tiled"); - return (0); - } - - TIFFSetField(out, TIFFTAG_TILEWIDTH, tile_width ); - TIFFSetField(out, TIFFTAG_TILELENGTH, tile_height ); - - /* - * Allocate tile buffer - */ - raster = (uint32*)_TIFFmalloc(tile_width * tile_height * sizeof (uint32)); - if (raster == 0) { - TIFFError(TIFFFileName(in), "No space for raster buffer"); - return (0); - } - - /* - * Allocate a scanline buffer for swapping during the vertical - * mirroring pass. - */ - wrk_line = (uint32*)_TIFFmalloc(tile_width * sizeof (uint32)); - if (!wrk_line) { - TIFFError(TIFFFileName(in), "No space for raster scanline buffer"); - ok = 0; - } - - /* - * Loop over the tiles. - */ - for( row = 0; ok && row < height; row += tile_height ) - { - for( col = 0; ok && col < width; col += tile_width ) - { - uint32 i_row; - - /* Read the tile into an RGBA array */ - if (!TIFFReadRGBATile(in, col, row, raster)) { - ok = 0; - break; - } - - - /* - * XXX: raster array has 4-byte unsigned integer type, that is why - * we should rearrange it here. - */ -#if HOST_BIGENDIAN - TIFFSwabArrayOfLong(raster, tile_width * tile_height); -#endif - - /* - * For some reason the TIFFReadRGBATile() function chooses the - * lower left corner as the origin. Vertically mirror scanlines. - */ - for( i_row = 0; i_row < tile_height / 2; i_row++ ) - { - uint32 *top_line, *bottom_line; - - top_line = raster + tile_width * i_row; - bottom_line = raster + tile_width * (tile_height-i_row-1); - - _TIFFmemcpy(wrk_line, top_line, 4*tile_width); - _TIFFmemcpy(top_line, bottom_line, 4*tile_width); - _TIFFmemcpy(bottom_line, wrk_line, 4*tile_width); - } - - /* - * Write out the result in a tile. - */ - - if( TIFFWriteEncodedTile( out, - TIFFComputeTile( out, col, row, 0, 0), - raster, - 4 * tile_width * tile_height ) == -1 ) - { - ok = 0; - break; - } - } - } - - _TIFFfree( raster ); - _TIFFfree( wrk_line ); - - return ok; -} - -static int -cvt_by_strip( TIFF *in, TIFF *out ) - -{ - uint32* raster; /* retrieve RGBA image */ - uint32 width, height; /* image width & height */ - uint32 row; - uint32 *wrk_line; - int ok = 1; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height); - - if( !TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip) ) { - TIFFError(TIFFFileName(in), "Source image not in strips"); - return (0); - } - - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - /* - * Allocate strip buffer - */ - raster = (uint32*)_TIFFmalloc(width * rowsperstrip * sizeof (uint32)); - if (raster == 0) { - TIFFError(TIFFFileName(in), "No space for raster buffer"); - return (0); - } - - /* - * Allocate a scanline buffer for swapping during the vertical - * mirroring pass. - */ - wrk_line = (uint32*)_TIFFmalloc(width * sizeof (uint32)); - if (!wrk_line) { - TIFFError(TIFFFileName(in), "No space for raster scanline buffer"); - ok = 0; - } - - /* - * Loop over the strips. - */ - for( row = 0; ok && row < height; row += rowsperstrip ) - { - int rows_to_write, i_row; - - /* Read the strip into an RGBA array */ - if (!TIFFReadRGBAStrip(in, row, raster)) { - ok = 0; - break; - } - - /* - * XXX: raster array has 4-byte unsigned integer type, that is why - * we should rearrange it here. - */ -#if HOST_BIGENDIAN - TIFFSwabArrayOfLong(raster, width * rowsperstrip); -#endif - - /* - * Figure out the number of scanlines actually in this strip. - */ - if( row + rowsperstrip > height ) - rows_to_write = height - row; - else - rows_to_write = rowsperstrip; - - /* - * For some reason the TIFFReadRGBAStrip() function chooses the - * lower left corner as the origin. Vertically mirror scanlines. - */ - - for( i_row = 0; i_row < rows_to_write / 2; i_row++ ) - { - uint32 *top_line, *bottom_line; - - top_line = raster + width * i_row; - bottom_line = raster + width * (rows_to_write-i_row-1); - - _TIFFmemcpy(wrk_line, top_line, 4*width); - _TIFFmemcpy(top_line, bottom_line, 4*width); - _TIFFmemcpy(bottom_line, wrk_line, 4*width); - } - - /* - * Write out the result in a strip - */ - - if( TIFFWriteEncodedStrip( out, row / rowsperstrip, raster, - 4 * rows_to_write * width ) == -1 ) - { - ok = 0; - break; - } - } - - _TIFFfree( raster ); - _TIFFfree( wrk_line ); - - return ok; -} - -/* - * cvt_whole_image() - * - * read the whole image into one big RGBA buffer and then write out - * strips from that. This is using the traditional TIFFReadRGBAImage() - * API that we trust. - */ - -static int -cvt_whole_image( TIFF *in, TIFF *out ) - -{ - uint32* raster; /* retrieve RGBA image */ - uint32 width, height; /* image width & height */ - uint32 row; - size_t pixel_count; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height); - pixel_count = width * height; - - /* XXX: Check the integer overflow. */ - if (!width || !height || pixel_count / width != height) { - TIFFError(TIFFFileName(in), - "Malformed input file; can't allocate buffer for raster of %lux%lu size", - (unsigned long)width, (unsigned long)height); - return 0; - } - - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - - raster = (uint32*)_TIFFCheckMalloc(in, pixel_count, sizeof(uint32), "raster buffer"); - if (raster == 0) { - TIFFError(TIFFFileName(in), "Failed to allocate buffer (%lu elements of %lu each)", - (unsigned long)pixel_count, (unsigned long)sizeof(uint32)); - return (0); - } - - /* Read the image in one chunk into an RGBA array */ - if (!TIFFReadRGBAImageOriented(in, width, height, raster, - ORIENTATION_TOPLEFT, 0)) { - _TIFFfree(raster); - return (0); - } - - /* - * XXX: raster array has 4-byte unsigned integer type, that is why - * we should rearrange it here. - */ -#if HOST_BIGENDIAN - TIFFSwabArrayOfLong(raster, width * height); -#endif - - /* - * Do we want to strip away alpha components? - */ - if (no_alpha) - { - size_t count = pixel_count; - unsigned char *src, *dst; - - src = dst = (unsigned char *) raster; - while (count > 0) - { - *(dst++) = *(src++); - *(dst++) = *(src++); - *(dst++) = *(src++); - src++; - count--; - } - } - - /* - * Write out the result in strips - */ - for (row = 0; row < height; row += rowsperstrip) - { - unsigned char * raster_strip; - int rows_to_write; - int bytes_per_pixel; - - if (no_alpha) - { - raster_strip = ((unsigned char *) raster) + 3 * row * width; - bytes_per_pixel = 3; - } - else - { - raster_strip = (unsigned char *) (raster + row * width); - bytes_per_pixel = 4; - } - - if( row + rowsperstrip > height ) - rows_to_write = height - row; - else - rows_to_write = rowsperstrip; - - if( TIFFWriteEncodedStrip( out, row / rowsperstrip, raster_strip, - bytes_per_pixel * rows_to_write * width ) == -1 ) - { - _TIFFfree( raster ); - return 0; - } - } - - _TIFFfree( raster ); - - return 1; -} - - -static int -tiffcvt(TIFF* in, TIFF* out) -{ - uint32 width, height; /* image width & height */ - uint16 shortv; - float floatv; - char *stringv; - uint32 longv; - uint16 v[1]; - - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height); - - CopyField(TIFFTAG_SUBFILETYPE, longv); - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, height); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); - - CopyField(TIFFTAG_FILLORDER, shortv); - TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT); - - if( no_alpha ) - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3); - else - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 4); - - if( !no_alpha ) - { - v[0] = EXTRASAMPLE_ASSOCALPHA; - TIFFSetField(out, TIFFTAG_EXTRASAMPLES, 1, v); - } - - CopyField(TIFFTAG_XRESOLUTION, floatv); - CopyField(TIFFTAG_YRESOLUTION, floatv); - CopyField(TIFFTAG_RESOLUTIONUNIT, shortv); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion()); - CopyField(TIFFTAG_DOCUMENTNAME, stringv); - - if( process_by_block && TIFFIsTiled( in ) ) - return( cvt_by_tile( in, out ) ); - else if( process_by_block ) - return( cvt_by_strip( in, out ) ); - else - return( cvt_whole_image( in, out ) ); -} - -static char* stuff[] = { - "usage: tiff2rgba [-c comp] [-r rows] [-b] [-n] [-8] input... output", - "where comp is one of the following compression algorithms:", - " jpeg\t\tJPEG encoding", - " zip\t\tZip/Deflate encoding", - " lzw\t\tLempel-Ziv & Welch encoding", - " packbits\tPackBits encoding", - " none\t\tno compression", - "and the other options are:", - " -r\trows/strip", - " -b (progress by block rather than as a whole image)", - " -n don't emit alpha component.", - " -8 write BigTIFF file instead of ClassicTIFF", - NULL -}; - -static void -usage(int code) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(code); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffcmp.c b/tiff/tools/tiffcmp.c deleted file mode 100755 index 352fe12..0000000 --- a/tiff/tools/tiffcmp.c +++ /dev/null @@ -1,657 +0,0 @@ -/* $Id: tiffcmp.c,v 1.17 2014-12-21 18:52:42 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -static int stopondiff = 1; -static int stoponfirsttag = 1; -static uint16 bitspersample = 1; -static uint16 samplesperpixel = 1; -static uint16 sampleformat = SAMPLEFORMAT_UINT; -static uint32 imagewidth; -static uint32 imagelength; - -static void usage(void); -static int tiffcmp(TIFF*, TIFF*); -static int cmptags(TIFF*, TIFF*); -static int ContigCompare(int, uint32, unsigned char*, unsigned char*, tsize_t); -static int SeparateCompare(int, int, uint32, unsigned char*, unsigned char*); -static void PrintIntDiff(uint32, int, uint32, uint32, uint32); -static void PrintFloatDiff(uint32, int, uint32, double, double); - -static void leof(const char*, uint32, int); - -int -main(int argc, char* argv[]) -{ - TIFF *tif1, *tif2; - int c, dirnum; - extern int optind; - extern char* optarg; - - while ((c = getopt(argc, argv, "ltz:")) != -1) - switch (c) { - case 'l': - stopondiff = 0; - break; - case 'z': - stopondiff = atoi(optarg); - break; - case 't': - stoponfirsttag = 0; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind < 2) - usage(); - tif1 = TIFFOpen(argv[optind], "r"); - if (tif1 == NULL) - return (-1); - tif2 = TIFFOpen(argv[optind+1], "r"); - if (tif2 == NULL) - return (-2); - dirnum = 0; - while (tiffcmp(tif1, tif2)) { - if (!TIFFReadDirectory(tif1)) { - if (!TIFFReadDirectory(tif2)) - break; - printf("No more directories for %s\n", - TIFFFileName(tif1)); - return (1); - } else if (!TIFFReadDirectory(tif2)) { - printf("No more directories for %s\n", - TIFFFileName(tif2)); - return (1); - } - printf("Directory %d:\n", ++dirnum); - } - - TIFFClose(tif1); - TIFFClose(tif2); - return (0); -} - -char* stuff[] = { -"usage: tiffcmp [options] file1 file2", -"where options are:", -" -l list each byte of image data that differs between the files", -" -z # list specified number of bytes that differs between the files", -" -t ignore any differences in directory tags", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -#define checkEOF(tif, row, sample) { \ - leof(TIFFFileName(tif), row, sample); \ - goto bad; \ -} - -static int CheckShortTag(TIFF*, TIFF*, int, char*); -static int CheckShort2Tag(TIFF*, TIFF*, int, char*); -static int CheckShortArrayTag(TIFF*, TIFF*, int, char*); -static int CheckLongTag(TIFF*, TIFF*, int, char*); -static int CheckFloatTag(TIFF*, TIFF*, int, char*); -static int CheckStringTag(TIFF*, TIFF*, int, char*); - -static int -tiffcmp(TIFF* tif1, TIFF* tif2) -{ - uint16 config1, config2; - tsize_t size1; - uint32 row; - tsample_t s; - unsigned char *buf1, *buf2; - - if (!CheckShortTag(tif1, tif2, TIFFTAG_BITSPERSAMPLE, "BitsPerSample")) - return (0); - if (!CheckShortTag(tif1, tif2, TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel")) - return (0); - if (!CheckLongTag(tif1, tif2, TIFFTAG_IMAGEWIDTH, "ImageWidth")) - return (0); - if (!cmptags(tif1, tif2)) - return (1); - (void) TIFFGetField(tif1, TIFFTAG_BITSPERSAMPLE, &bitspersample); - (void) TIFFGetField(tif1, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - (void) TIFFGetField(tif1, TIFFTAG_SAMPLEFORMAT, &sampleformat); - (void) TIFFGetField(tif1, TIFFTAG_IMAGEWIDTH, &imagewidth); - (void) TIFFGetField(tif1, TIFFTAG_IMAGELENGTH, &imagelength); - (void) TIFFGetField(tif1, TIFFTAG_PLANARCONFIG, &config1); - (void) TIFFGetField(tif2, TIFFTAG_PLANARCONFIG, &config2); - buf1 = (unsigned char *)_TIFFmalloc(size1 = TIFFScanlineSize(tif1)); - buf2 = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(tif2)); - if (buf1 == NULL || buf2 == NULL) { - fprintf(stderr, "No space for scanline buffers\n"); - exit(-1); - } - if (config1 != config2 && bitspersample != 8 && samplesperpixel > 1) { - fprintf(stderr, -"Can't handle different planar configuration w/ different bits/sample\n"); - goto bad; - } -#define pack(a,b) ((a)<<8)|(b) - switch (pack(config1, config2)) { - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG): - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(tif2, buf2, row, 0) < 0) - checkEOF(tif2, row, -1) - for (s = 0; s < samplesperpixel; s++) { - if (TIFFReadScanline(tif1, buf1, row, s) < 0) - checkEOF(tif1, row, s) - if (SeparateCompare(1, s, row, buf2, buf1) < 0) - goto bad1; - } - } - break; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE): - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(tif1, buf1, row, 0) < 0) - checkEOF(tif1, row, -1) - for (s = 0; s < samplesperpixel; s++) { - if (TIFFReadScanline(tif2, buf2, row, s) < 0) - checkEOF(tif2, row, s) - if (SeparateCompare(0, s, row, buf1, buf2) < 0) - goto bad1; - } - } - break; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE): - for (s = 0; s < samplesperpixel; s++) - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(tif1, buf1, row, s) < 0) - checkEOF(tif1, row, s) - if (TIFFReadScanline(tif2, buf2, row, s) < 0) - checkEOF(tif2, row, s) - if (ContigCompare(s, row, buf1, buf2, size1) < 0) - goto bad1; - } - break; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG): - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(tif1, buf1, row, 0) < 0) - checkEOF(tif1, row, -1) - if (TIFFReadScanline(tif2, buf2, row, 0) < 0) - checkEOF(tif2, row, -1) - if (ContigCompare(-1, row, buf1, buf2, size1) < 0) - goto bad1; - } - break; - } - if (buf1) _TIFFfree(buf1); - if (buf2) _TIFFfree(buf2); - return (1); -bad: - if (stopondiff) - exit(1); -bad1: - if (buf1) _TIFFfree(buf1); - if (buf2) _TIFFfree(buf2); - return (0); -} - -#define CmpShortField(tag, name) \ - if (!CheckShortTag(tif1, tif2, tag, name) && stoponfirsttag) return (0) -#define CmpShortField2(tag, name) \ - if (!CheckShort2Tag(tif1, tif2, tag, name) && stoponfirsttag) return (0) -#define CmpLongField(tag, name) \ - if (!CheckLongTag(tif1, tif2, tag, name) && stoponfirsttag) return (0) -#define CmpFloatField(tag, name) \ - if (!CheckFloatTag(tif1, tif2, tag, name) && stoponfirsttag) return (0) -#define CmpStringField(tag, name) \ - if (!CheckStringTag(tif1, tif2, tag, name) && stoponfirsttag) return (0) -#define CmpShortArrayField(tag, name) \ - if (!CheckShortArrayTag(tif1, tif2, tag, name) && stoponfirsttag) return (0) - -static int -cmptags(TIFF* tif1, TIFF* tif2) -{ - uint16 compression1, compression2; - CmpLongField(TIFFTAG_SUBFILETYPE, "SubFileType"); - CmpLongField(TIFFTAG_IMAGEWIDTH, "ImageWidth"); - CmpLongField(TIFFTAG_IMAGELENGTH, "ImageLength"); - CmpShortField(TIFFTAG_BITSPERSAMPLE, "BitsPerSample"); - CmpShortField(TIFFTAG_COMPRESSION, "Compression"); - CmpShortField(TIFFTAG_PREDICTOR, "Predictor"); - CmpShortField(TIFFTAG_PHOTOMETRIC, "PhotometricInterpretation"); - CmpShortField(TIFFTAG_THRESHHOLDING, "Thresholding"); - CmpShortField(TIFFTAG_FILLORDER, "FillOrder"); - CmpShortField(TIFFTAG_ORIENTATION, "Orientation"); - CmpShortField(TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel"); - CmpShortField(TIFFTAG_MINSAMPLEVALUE, "MinSampleValue"); - CmpShortField(TIFFTAG_MAXSAMPLEVALUE, "MaxSampleValue"); - CmpShortField(TIFFTAG_SAMPLEFORMAT, "SampleFormat"); - CmpFloatField(TIFFTAG_XRESOLUTION, "XResolution"); - CmpFloatField(TIFFTAG_YRESOLUTION, "YResolution"); - if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) && - compression1 == COMPRESSION_CCITTFAX3 && - TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) && - compression2 == COMPRESSION_CCITTFAX3 ) - { - CmpLongField(TIFFTAG_GROUP3OPTIONS, "Group3Options"); - } - if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) && - compression1 == COMPRESSION_CCITTFAX4 && - TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) && - compression2 == COMPRESSION_CCITTFAX4 ) - { - CmpLongField(TIFFTAG_GROUP4OPTIONS, "Group4Options"); - } - CmpShortField(TIFFTAG_RESOLUTIONUNIT, "ResolutionUnit"); - CmpShortField(TIFFTAG_PLANARCONFIG, "PlanarConfiguration"); - CmpLongField(TIFFTAG_ROWSPERSTRIP, "RowsPerStrip"); - CmpFloatField(TIFFTAG_XPOSITION, "XPosition"); - CmpFloatField(TIFFTAG_YPOSITION, "YPosition"); - CmpShortField(TIFFTAG_GRAYRESPONSEUNIT, "GrayResponseUnit"); - CmpShortField(TIFFTAG_COLORRESPONSEUNIT, "ColorResponseUnit"); -#ifdef notdef - { uint16 *graycurve; - CmpField(TIFFTAG_GRAYRESPONSECURVE, graycurve); - } - { uint16 *red, *green, *blue; - CmpField3(TIFFTAG_COLORRESPONSECURVE, red, green, blue); - } - { uint16 *red, *green, *blue; - CmpField3(TIFFTAG_COLORMAP, red, green, blue); - } -#endif - CmpShortField2(TIFFTAG_PAGENUMBER, "PageNumber"); - CmpStringField(TIFFTAG_ARTIST, "Artist"); - CmpStringField(TIFFTAG_IMAGEDESCRIPTION,"ImageDescription"); - CmpStringField(TIFFTAG_MAKE, "Make"); - CmpStringField(TIFFTAG_MODEL, "Model"); - CmpStringField(TIFFTAG_SOFTWARE, "Software"); - CmpStringField(TIFFTAG_DATETIME, "DateTime"); - CmpStringField(TIFFTAG_HOSTCOMPUTER, "HostComputer"); - CmpStringField(TIFFTAG_PAGENAME, "PageName"); - CmpStringField(TIFFTAG_DOCUMENTNAME, "DocumentName"); - CmpShortField(TIFFTAG_MATTEING, "Matteing"); - CmpShortArrayField(TIFFTAG_EXTRASAMPLES,"ExtraSamples"); - return (1); -} - -static int -ContigCompare(int sample, uint32 row, - unsigned char* p1, unsigned char* p2, tsize_t size) -{ - uint32 pix; - int ppb = 8 / bitspersample; - int samples_to_test; - - if (memcmp(p1, p2, size) == 0) - return 0; - - samples_to_test = (sample == -1) ? samplesperpixel : 1; - - switch (bitspersample) { - case 1: case 2: case 4: case 8: - { - unsigned char *pix1 = p1, *pix2 = p2; - - for (pix = 0; pix < imagewidth; pix += ppb) { - int s; - - for(s = 0; s < samples_to_test; s++) { - if (*pix1 != *pix2) { - if( sample == -1 ) - PrintIntDiff(row, s, pix, *pix1, *pix2); - else - PrintIntDiff(row, sample, pix, *pix1, *pix2); - } - - pix1++; - pix2++; - } - } - break; - } - case 16: - { - uint16 *pix1 = (uint16 *)p1, *pix2 = (uint16 *)p2; - - for (pix = 0; pix < imagewidth; pix++) { - int s; - - for(s = 0; s < samples_to_test; s++) { - if (*pix1 != *pix2) - PrintIntDiff(row, sample, pix, *pix1, *pix2); - - pix1++; - pix2++; - } - } - break; - } - case 32: - if (sampleformat == SAMPLEFORMAT_UINT - || sampleformat == SAMPLEFORMAT_INT) { - uint32 *pix1 = (uint32 *)p1, *pix2 = (uint32 *)p2; - - for (pix = 0; pix < imagewidth; pix++) { - int s; - - for(s = 0; s < samples_to_test; s++) { - if (*pix1 != *pix2) { - PrintIntDiff(row, sample, pix, - *pix1, *pix2); - } - - pix1++; - pix2++; - } - } - } else if (sampleformat == SAMPLEFORMAT_IEEEFP) { - float *pix1 = (float *)p1, *pix2 = (float *)p2; - - for (pix = 0; pix < imagewidth; pix++) { - int s; - - for(s = 0; s < samples_to_test; s++) { - if (fabs(*pix1 - *pix2) < 0.000000000001) { - PrintFloatDiff(row, sample, pix, - *pix1, *pix2); - } - - pix1++; - pix2++; - } - } - } else { - fprintf(stderr, "Sample format %d is not supported.\n", - sampleformat); - return -1; - } - break; - default: - fprintf(stderr, "Bit depth %d is not supported.\n", bitspersample); - return -1; - } - - return 0; -} - -static void -PrintIntDiff(uint32 row, int sample, uint32 pix, uint32 w1, uint32 w2) -{ - if (sample < 0) - sample = 0; - switch (bitspersample) { - case 1: - case 2: - case 4: - { - int32 mask1, mask2, s; - - mask1 = ~((-1) << bitspersample); - s = (8 - bitspersample); - mask2 = mask1 << s; - for (; mask2 && pix < imagewidth; - mask2 >>= bitspersample, s -= bitspersample, pix++) { - if ((w1 & mask2) ^ (w2 & mask2)) { - printf( - "Scanline %lu, pixel %lu, sample %d: %01x %01x\n", - (unsigned long) row, - (unsigned long) pix, - sample, - (unsigned int)((w1 >> s) & mask1), - (unsigned int)((w2 >> s) & mask1)); - if (--stopondiff == 0) - exit(1); - } - } - break; - } - case 8: - printf("Scanline %lu, pixel %lu, sample %d: %02x %02x\n", - (unsigned long) row, (unsigned long) pix, sample, - (unsigned int) w1, (unsigned int) w2); - if (--stopondiff == 0) - exit(1); - break; - case 16: - printf("Scanline %lu, pixel %lu, sample %d: %04x %04x\n", - (unsigned long) row, (unsigned long) pix, sample, - (unsigned int) w1, (unsigned int) w2); - if (--stopondiff == 0) - exit(1); - break; - case 32: - printf("Scanline %lu, pixel %lu, sample %d: %08x %08x\n", - (unsigned long) row, (unsigned long) pix, sample, - (unsigned int) w1, (unsigned int) w2); - if (--stopondiff == 0) - exit(1); - break; - default: - break; - } -} - -static void -PrintFloatDiff(uint32 row, int sample, uint32 pix, double w1, double w2) -{ - if (sample < 0) - sample = 0; - switch (bitspersample) { - case 32: - printf("Scanline %lu, pixel %lu, sample %d: %g %g\n", - (long) row, (long) pix, sample, w1, w2); - if (--stopondiff == 0) - exit(1); - break; - default: - break; - } -} - -static int -SeparateCompare(int reversed, int sample, uint32 row, - unsigned char* cp1, unsigned char* p2) -{ - uint32 npixels = imagewidth; - int pixel; - - cp1 += sample; - for (pixel = 0; npixels-- > 0; pixel++, cp1 += samplesperpixel, p2++) { - if (*cp1 != *p2) { - printf("Scanline %lu, pixel %lu, sample %ld: ", - (long) row, (long) pixel, (long) sample); - if (reversed) - printf("%02x %02x\n", *p2, *cp1); - else - printf("%02x %02x\n", *cp1, *p2); - if (--stopondiff == 0) - exit(1); - } - } - - return 0; -} - -static int -checkTag(TIFF* tif1, TIFF* tif2, int tag, char* name, void* p1, void* p2) -{ - - if (TIFFGetField(tif1, tag, p1)) { - if (!TIFFGetField(tif2, tag, p2)) { - printf("%s tag appears only in %s\n", - name, TIFFFileName(tif1)); - return (0); - } - return (1); - } else if (TIFFGetField(tif2, tag, p2)) { - printf("%s tag appears only in %s\n", name, TIFFFileName(tif2)); - return (0); - } - return (-1); -} - -#define CHECK(cmp, fmt) { \ - switch (checkTag(tif1,tif2,tag,name,&v1,&v2)) { \ - case 1: if (cmp) \ - case -1: return (1); \ - printf(fmt, name, v1, v2); \ - } \ - return (0); \ -} - -static int -CheckShortTag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - uint16 v1, v2; - CHECK(v1 == v2, "%s: %u %u\n"); -} - -static int -CheckShort2Tag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - uint16 v11, v12, v21, v22; - - if (TIFFGetField(tif1, tag, &v11, &v12)) { - if (!TIFFGetField(tif2, tag, &v21, &v22)) { - printf("%s tag appears only in %s\n", - name, TIFFFileName(tif1)); - return (0); - } - if (v11 == v21 && v12 == v22) - return (1); - printf("%s: <%u,%u> <%u,%u>\n", name, v11, v12, v21, v22); - } else if (TIFFGetField(tif2, tag, &v21, &v22)) - printf("%s tag appears only in %s\n", name, TIFFFileName(tif2)); - else - return (1); - return (0); -} - -static int -CheckShortArrayTag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - uint16 n1, *a1; - uint16 n2, *a2; - - if (TIFFGetField(tif1, tag, &n1, &a1)) { - if (!TIFFGetField(tif2, tag, &n2, &a2)) { - printf("%s tag appears only in %s\n", - name, TIFFFileName(tif1)); - return (0); - } - if (n1 == n2) { - char* sep; - uint16 i; - - if (memcmp(a1, a2, n1 * sizeof(uint16)) == 0) - return (1); - printf("%s: value mismatch, <%u:", name, n1); - sep = ""; - for (i = 0; i < n1; i++) - printf("%s%u", sep, a1[i]), sep = ","; - printf("> and <%u: ", n2); - sep = ""; - for (i = 0; i < n2; i++) - printf("%s%u", sep, a2[i]), sep = ","; - printf(">\n"); - } else - printf("%s: %u items in %s, %u items in %s", name, - n1, TIFFFileName(tif1), - n2, TIFFFileName(tif2) - ); - } else if (TIFFGetField(tif2, tag, &n2, &a2)) - printf("%s tag appears only in %s\n", name, TIFFFileName(tif2)); - else - return (1); - return (0); -} - -static int -CheckLongTag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - uint32 v1, v2; - CHECK(v1 == v2, "%s: %u %u\n"); -} - -static int -CheckFloatTag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - float v1, v2; - CHECK(v1 == v2, "%s: %g %g\n"); -} - -static int -CheckStringTag(TIFF* tif1, TIFF* tif2, int tag, char* name) -{ - char *v1, *v2; - CHECK(strcmp(v1, v2) == 0, "%s: \"%s\" \"%s\"\n"); -} - -static void -leof(const char* name, uint32 row, int s) -{ - - printf("%s: EOF at scanline %lu", name, (unsigned long)row); - if (s >= 0) - printf(", sample %d", s); - printf("\n"); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffcp.c b/tiff/tools/tiffcp.c deleted file mode 100755 index c186b9b..0000000 --- a/tiff/tools/tiffcp.c +++ /dev/null @@ -1,1870 +0,0 @@ -/* $Id: tiffcp.c,v 1.51 2014-12-21 16:28:37 erouault Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Revised: 2/18/01 BAR -- added syntax for extracting single images from - * multi-image TIFF files. - * - * New syntax is: sourceFileName,image# - * - * image# ranges from 0.. where n is the # of images in the file. - * There may be no white space between the comma and the filename or - * image number. - * - * Example: tiffcp source.tif,1 destination.tif - * - * Copies the 2nd image in source.tif to the destination. - * - ***** - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#if defined(VMS) -# define unlink delete -#endif - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -#define TRUE 1 -#define FALSE 0 - -static int outtiled = -1; -static uint32 tilewidth; -static uint32 tilelength; - -static uint16 config; -static uint16 compression; -static uint16 predictor; -static int preset; -static uint16 fillorder; -static uint16 orientation; -static uint32 rowsperstrip; -static uint32 g3opts; -static int ignore = FALSE; /* if true, ignore read errors */ -static uint32 defg3opts = (uint32) -1; -static int quality = 75; /* JPEG quality */ -static int jpegcolormode = JPEGCOLORMODE_RGB; -static uint16 defcompression = (uint16) -1; -static uint16 defpredictor = (uint16) -1; -static int defpreset = -1; - -static int tiffcp(TIFF*, TIFF*); -static int processCompressOptions(char*); -static void usage(void); - -static char comma = ','; /* (default) comma separator character */ -static TIFF* bias = NULL; -static int pageNum = 0; -static int pageInSeq = 0; - -static int nextSrcImage (TIFF *tif, char **imageSpec) -/* - seek to the next image specified in *imageSpec - returns 1 if success, 0 if no more images to process - *imageSpec=NULL if subsequent images should be processed in sequence -*/ -{ - if (**imageSpec == comma) { /* if not @comma, we've done all images */ - char *start = *imageSpec + 1; - tdir_t nextImage = (tdir_t)strtol(start, imageSpec, 0); - if (start == *imageSpec) nextImage = TIFFCurrentDirectory (tif); - if (**imageSpec) - { - if (**imageSpec == comma) { - /* a trailing comma denotes remaining images in sequence */ - if ((*imageSpec)[1] == '\0') *imageSpec = NULL; - }else{ - fprintf (stderr, - "Expected a %c separated image # list after %s\n", - comma, TIFFFileName (tif)); - exit (-4); /* syntax error */ - } - } - if (TIFFSetDirectory (tif, nextImage)) return 1; - fprintf (stderr, "%s%c%d not found!\n", - TIFFFileName(tif), comma, (int) nextImage); - } - return 0; -} - - -static TIFF* openSrcImage (char **imageSpec) -/* - imageSpec points to a pointer to a filename followed by optional ,image#'s - Open the TIFF file and assign *imageSpec to either NULL if there are - no images specified, or a pointer to the next image number text -*/ -{ - TIFF *tif; - char *fn = *imageSpec; - *imageSpec = strchr (fn, comma); - if (*imageSpec) { /* there is at least one image number specifier */ - **imageSpec = '\0'; - tif = TIFFOpen (fn, "r"); - /* but, ignore any single trailing comma */ - if (!(*imageSpec)[1]) {*imageSpec = NULL; return tif;} - if (tif) { - **imageSpec = comma; /* replace the comma */ - if (!nextSrcImage(tif, imageSpec)) { - TIFFClose (tif); - tif = NULL; - } - } - }else - tif = TIFFOpen (fn, "r"); - return tif; -} - -int -main(int argc, char* argv[]) -{ - uint16 defconfig = (uint16) -1; - uint16 deffillorder = 0; - uint32 deftilewidth = (uint32) -1; - uint32 deftilelength = (uint32) -1; - uint32 defrowsperstrip = (uint32) 0; - uint64 diroff = 0; - TIFF* in; - TIFF* out; - char mode[10]; - char* mp = mode; - int c; - extern int optind; - extern char* optarg; - - *mp++ = 'w'; - *mp = '\0'; - while ((c = getopt(argc, argv, ",:b:c:f:l:o:p:r:w:aistBLMC8x")) != -1) - switch (c) { - case ',': - if (optarg[0] != '=') usage(); - comma = optarg[1]; - break; - case 'b': /* this file is bias image subtracted from others */ - if (bias) { - fputs ("Only 1 bias image may be specified\n", stderr); - exit (-2); - } - { - uint16 samples = (uint16) -1; - char **biasFn = &optarg; - bias = openSrcImage (biasFn); - if (!bias) exit (-5); - if (TIFFIsTiled (bias)) { - fputs ("Bias image must be organized in strips\n", stderr); - exit (-7); - } - TIFFGetField(bias, TIFFTAG_SAMPLESPERPIXEL, &samples); - if (samples != 1) { - fputs ("Bias image must be monochrome\n", stderr); - exit (-7); - } - } - break; - case 'a': /* append to output */ - mode[0] = 'a'; - break; - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'f': /* fill order */ - if (streq(optarg, "lsb2msb")) - deffillorder = FILLORDER_LSB2MSB; - else if (streq(optarg, "msb2lsb")) - deffillorder = FILLORDER_MSB2LSB; - else - usage(); - break; - case 'i': /* ignore errors */ - ignore = TRUE; - break; - case 'l': /* tile length */ - outtiled = TRUE; - deftilelength = atoi(optarg); - break; - case 'o': /* initial directory offset */ - diroff = strtoul(optarg, NULL, 0); - break; - case 'p': /* planar configuration */ - if (streq(optarg, "separate")) - defconfig = PLANARCONFIG_SEPARATE; - else if (streq(optarg, "contig")) - defconfig = PLANARCONFIG_CONTIG; - else - usage(); - break; - case 'r': /* rows/strip */ - defrowsperstrip = atol(optarg); - break; - case 's': /* generate stripped output */ - outtiled = FALSE; - break; - case 't': /* generate tiled output */ - outtiled = TRUE; - break; - case 'w': /* tile width */ - outtiled = TRUE; - deftilewidth = atoi(optarg); - break; - case 'B': - *mp++ = 'b'; *mp = '\0'; - break; - case 'L': - *mp++ = 'l'; *mp = '\0'; - break; - case 'M': - *mp++ = 'm'; *mp = '\0'; - break; - case 'C': - *mp++ = 'c'; *mp = '\0'; - break; - case '8': - *mp++ = '8'; *mp = '\0'; - break; - case 'x': - pageInSeq = 1; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind < 2) - usage(); - out = TIFFOpen(argv[argc-1], mode); - if (out == NULL) - return (-2); - if ((argc - optind) == 2) - pageNum = -1; - for (; optind < argc-1 ; optind++) { - char *imageCursor = argv[optind]; - in = openSrcImage (&imageCursor); - if (in == NULL) { - (void) TIFFClose(out); - return (-3); - } - if (diroff != 0 && !TIFFSetSubDirectory(in, diroff)) { - TIFFError(TIFFFileName(in), - "Error, setting subdirectory at " TIFF_UINT64_FORMAT, diroff); - (void) TIFFClose(in); - (void) TIFFClose(out); - return (1); - } - for (;;) { - config = defconfig; - compression = defcompression; - predictor = defpredictor; - preset = defpreset; - fillorder = deffillorder; - rowsperstrip = defrowsperstrip; - tilewidth = deftilewidth; - tilelength = deftilelength; - g3opts = defg3opts; - if (!tiffcp(in, out) || !TIFFWriteDirectory(out)) { - (void) TIFFClose(in); - (void) TIFFClose(out); - return (1); - } - if (imageCursor) { /* seek next image directory */ - if (!nextSrcImage(in, &imageCursor)) break; - }else - if (!TIFFReadDirectory(in)) break; - } - (void) TIFFClose(in); - } - - (void) TIFFClose(out); - return (0); -} - -static void -processZIPOptions(char* cp) -{ - if ( (cp = strchr(cp, ':')) ) { - do { - cp++; - if (isdigit((int)*cp)) - defpredictor = atoi(cp); - else if (*cp == 'p') - defpreset = atoi(++cp); - else - usage(); - } while( (cp = strchr(cp, ':')) ); - } -} - -static void -processG3Options(char* cp) -{ - if( (cp = strchr(cp, ':')) ) { - if (defg3opts == (uint32) -1) - defg3opts = 0; - do { - cp++; - if (strneq(cp, "1d", 2)) - defg3opts &= ~GROUP3OPT_2DENCODING; - else if (strneq(cp, "2d", 2)) - defg3opts |= GROUP3OPT_2DENCODING; - else if (strneq(cp, "fill", 4)) - defg3opts |= GROUP3OPT_FILLBITS; - else - usage(); - } while( (cp = strchr(cp, ':')) ); - } -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) { - defcompression = COMPRESSION_NONE; - } else if (streq(opt, "packbits")) { - defcompression = COMPRESSION_PACKBITS; - } else if (strneq(opt, "jpeg", 4)) { - char* cp = strchr(opt, ':'); - - defcompression = COMPRESSION_JPEG; - while( cp ) - { - if (isdigit((int)cp[1])) - quality = atoi(cp+1); - else if (cp[1] == 'r' ) - jpegcolormode = JPEGCOLORMODE_RAW; - else - usage(); - - cp = strchr(cp+1,':'); - } - } else if (strneq(opt, "g3", 2)) { - processG3Options(opt); - defcompression = COMPRESSION_CCITTFAX3; - } else if (streq(opt, "g4")) { - defcompression = COMPRESSION_CCITTFAX4; - } else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - defpredictor = atoi(cp+1); - defcompression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - processZIPOptions(opt); - defcompression = COMPRESSION_ADOBE_DEFLATE; - } else if (strneq(opt, "lzma", 4)) { - processZIPOptions(opt); - defcompression = COMPRESSION_LZMA; - } else if (strneq(opt, "jbig", 4)) { - defcompression = COMPRESSION_JBIG; - } else if (strneq(opt, "sgilog", 6)) { - defcompression = COMPRESSION_SGILOG; - } else - return (0); - return (1); -} - -char* stuff[] = { -"usage: tiffcp [options] input... output", -"where options are:", -" -a append to output instead of overwriting", -" -o offset set initial directory offset", -" -p contig pack samples contiguously (e.g. RGBRGB...)", -" -p separate store samples separately (e.g. RRR...GGG...BBB...)", -" -s write output in strips", -" -t write output in tiles", -" -x force the merged tiff pages in sequence", -" -8 write BigTIFF instead of default ClassicTIFF", -" -B write big-endian instead of native byte order", -" -L write little-endian instead of native byte order", -" -M disable use of memory-mapped files", -" -C disable strip chopping", -" -i ignore read errors", -" -b file[,#] bias (dark) monochrome image to be subtracted from all others", -" -,=% use % rather than , to separate image #'s (per Note below)", -"", -" -r # make each strip have no more than # rows", -" -w # set output tile width (pixels)", -" -l # set output tile length (pixels)", -"", -" -f lsb2msb force lsb-to-msb FillOrder for output", -" -f msb2lsb force msb-to-lsb FillOrder for output", -"", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c lzma[:opts] compress output with LZMA2 encoding", -" -c jpeg[:opts] compress output with JPEG encoding", -" -c jbig compress output with ISO JBIG encoding", -" -c packbits compress output with packbits encoding", -" -c g3[:opts] compress output with CCITT Group 3 encoding", -" -c g4 compress output with CCITT Group 4 encoding", -" -c sgilog compress output with SGILOG encoding", -" -c none use no compression algorithm on output", -"", -"Group 3 options:", -" 1d use default CCITT Group 3 1D-encoding", -" 2d use optional CCITT Group 3 2D-encoding", -" fill byte-align EOL codes", -"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs", -"", -"JPEG options:", -" # set compression quality level (0-100, default 75)", -" r output color image as RGB rather than YCbCr", -"For example, -c jpeg:r:50 to get JPEG-encoded RGB data with 50% comp. quality", -"", -"LZW, Deflate (ZIP) and LZMA2 options:", -" # set predictor value", -" p# set compression level (preset)", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing,", -"-c zip:3:p9 for Deflate encoding with maximum compression level and floating", -"point predictor.", -"", -"Note that input filenames may be of the form filename,x,y,z", -"where x, y, and z specify image numbers in the filename to copy.", -"example: tiffcp -c none -b esp.tif,1 esp.tif,0 test.tif", -" subtract 2nd image in esp.tif from 1st yielding uncompressed result test.tif", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) -#define CopyField4(tag, v1, v2, v3, v4) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4) - -static void -cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type) -{ - switch (type) { - case TIFF_SHORT: - if (count == 1) { - uint16 shortv; - CopyField(tag, shortv); - } else if (count == 2) { - uint16 shortv1, shortv2; - CopyField2(tag, shortv1, shortv2); - } else if (count == 4) { - uint16 *tr, *tg, *tb, *ta; - CopyField4(tag, tr, tg, tb, ta); - } else if (count == (uint16) -1) { - uint16 shortv1; - uint16* shortav; - CopyField2(tag, shortv1, shortav); - } - break; - case TIFF_LONG: - { uint32 longv; - CopyField(tag, longv); - } - break; - case TIFF_RATIONAL: - if (count == 1) { - float floatv; - CopyField(tag, floatv); - } else if (count == (uint16) -1) { - float* floatav; - CopyField(tag, floatav); - } - break; - case TIFF_ASCII: - { char* stringv; - CopyField(tag, stringv); - } - break; - case TIFF_DOUBLE: - if (count == 1) { - double doublev; - CopyField(tag, doublev); - } else if (count == (uint16) -1) { - double* doubleav; - CopyField(tag, doubleav); - } - break; - default: - TIFFError(TIFFFileName(in), - "Data type %d is not supported, tag %d skipped.", - tag, type); - } -} - -static struct cpTag { - uint16 tag; - uint16 count; - TIFFDataType type; -} tags[] = { - { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG }, - { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT }, - { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII }, - { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII }, - { TIFFTAG_MAKE, 1, TIFF_ASCII }, - { TIFFTAG_MODEL, 1, TIFF_ASCII }, - { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_PAGENAME, 1, TIFF_ASCII }, - { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT }, - { TIFFTAG_SOFTWARE, 1, TIFF_ASCII }, - { TIFFTAG_DATETIME, 1, TIFF_ASCII }, - { TIFFTAG_ARTIST, 1, TIFF_ASCII }, - { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII }, - { TIFFTAG_WHITEPOINT, (uint16) -1, TIFF_RATIONAL }, - { TIFFTAG_PRIMARYCHROMATICITIES,(uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT }, - { TIFFTAG_INKSET, 1, TIFF_SHORT }, - { TIFFTAG_DOTRANGE, 2, TIFF_SHORT }, - { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII }, - { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT }, - { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT }, - { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT }, - { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT }, - { TIFFTAG_SMINSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_SMAXSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_STONITS, 1, TIFF_DOUBLE }, -}; -#define NTAGS (sizeof (tags) / sizeof (tags[0])) - -#define CopyTag(tag, count, type) cpTag(in, out, tag, count, type) - -typedef int (*copyFunc) - (TIFF* in, TIFF* out, uint32 l, uint32 w, uint16 samplesperpixel); -static copyFunc pickCopyFunc(TIFF*, TIFF*, uint16, uint16); - -/* PODD */ - -static int -tiffcp(TIFF* in, TIFF* out) -{ - uint16 bitspersample, samplesperpixel; - uint16 input_compression, input_photometric; - copyFunc cf; - uint32 width, length; - struct cpTag* p; - - CopyField(TIFFTAG_IMAGEWIDTH, width); - CopyField(TIFFTAG_IMAGELENGTH, length); - CopyField(TIFFTAG_BITSPERSAMPLE, bitspersample); - CopyField(TIFFTAG_SAMPLESPERPIXEL, samplesperpixel); - if (compression != (uint16)-1) - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - else - CopyField(TIFFTAG_COMPRESSION, compression); - TIFFGetFieldDefaulted(in, TIFFTAG_COMPRESSION, &input_compression); - TIFFGetFieldDefaulted(in, TIFFTAG_PHOTOMETRIC, &input_photometric); - if (input_compression == COMPRESSION_JPEG) { - /* Force conversion to RGB */ - TIFFSetField(in, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } else if (input_photometric == PHOTOMETRIC_YCBCR) { - /* Otherwise, can't handle subsampled input */ - uint16 subsamplinghor,subsamplingver; - - TIFFGetFieldDefaulted(in, TIFFTAG_YCBCRSUBSAMPLING, - &subsamplinghor, &subsamplingver); - if (subsamplinghor!=1 || subsamplingver!=1) { - fprintf(stderr, "tiffcp: %s: Can't copy/convert subsampled image.\n", - TIFFFileName(in)); - return FALSE; - } - } - if (compression == COMPRESSION_JPEG) { - if (input_photometric == PHOTOMETRIC_RGB && - jpegcolormode == JPEGCOLORMODE_RGB) - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - else - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric); - } - else if (compression == COMPRESSION_SGILOG - || compression == COMPRESSION_SGILOG24) - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, - samplesperpixel == 1 ? - PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV); - else if (input_compression == COMPRESSION_JPEG && - samplesperpixel == 3 ) { - /* RGB conversion was forced above - hence the output will be of the same type */ - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); - } - else - CopyTag(TIFFTAG_PHOTOMETRIC, 1, TIFF_SHORT); - if (fillorder != 0) - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - else - CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT); - /* - * Will copy `Orientation' tag from input image - */ - TIFFGetFieldDefaulted(in, TIFFTAG_ORIENTATION, &orientation); - switch (orientation) { - case ORIENTATION_BOTRIGHT: - case ORIENTATION_RIGHTBOT: /* XXX */ - TIFFWarning(TIFFFileName(in), "using bottom-left orientation"); - orientation = ORIENTATION_BOTLEFT; - /* fall thru... */ - case ORIENTATION_LEFTBOT: /* XXX */ - case ORIENTATION_BOTLEFT: - break; - case ORIENTATION_TOPRIGHT: - case ORIENTATION_RIGHTTOP: /* XXX */ - default: - TIFFWarning(TIFFFileName(in), "using top-left orientation"); - orientation = ORIENTATION_TOPLEFT; - /* fall thru... */ - case ORIENTATION_LEFTTOP: /* XXX */ - case ORIENTATION_TOPLEFT: - break; - } - TIFFSetField(out, TIFFTAG_ORIENTATION, orientation); - /* - * Choose tiles/strip for the output image according to - * the command line arguments (-tiles, -strips) and the - * structure of the input image. - */ - if (outtiled == -1) - outtiled = TIFFIsTiled(in); - if (outtiled) { - /* - * Setup output file's tile width&height. If either - * is not specified, use either the value from the - * input image or, if nothing is defined, use the - * library default. - */ - if (tilewidth == (uint32) -1) - TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth); - if (tilelength == (uint32) -1) - TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength); - TIFFDefaultTileSize(out, &tilewidth, &tilelength); - TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth); - TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength); - } else { - /* - * RowsPerStrip is left unspecified: use either the - * value from the input image or, if nothing is defined, - * use the library default. - */ - if (rowsperstrip == (uint32) 0) { - if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, - &rowsperstrip)) { - rowsperstrip = - TIFFDefaultStripSize(out, rowsperstrip); - } - if (rowsperstrip > length && rowsperstrip != (uint32)-1) - rowsperstrip = length; - } - else if (rowsperstrip == (uint32) -1) - rowsperstrip = length; - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - } - if (config != (uint16) -1) - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - else - CopyField(TIFFTAG_PLANARCONFIG, config); - if (samplesperpixel <= 4) - CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT); - CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT); -/* SMinSampleValue & SMaxSampleValue */ - switch (compression) { - case COMPRESSION_JPEG: - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, jpegcolormode); - break; - case COMPRESSION_JBIG: - CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII); - CopyTag(TIFFTAG_FAXDCS, 1, TIFF_ASCII); - break; - case COMPRESSION_LZW: - case COMPRESSION_ADOBE_DEFLATE: - case COMPRESSION_DEFLATE: - case COMPRESSION_LZMA: - if (predictor != (uint16)-1) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - else - CopyField(TIFFTAG_PREDICTOR, predictor); - if (preset != -1) { - if (compression == COMPRESSION_ADOBE_DEFLATE - || compression == COMPRESSION_DEFLATE) - TIFFSetField(out, TIFFTAG_ZIPQUALITY, preset); - else if (compression == COMPRESSION_LZMA) - TIFFSetField(out, TIFFTAG_LZMAPRESET, preset); - } - break; - case COMPRESSION_CCITTFAX3: - case COMPRESSION_CCITTFAX4: - if (compression == COMPRESSION_CCITTFAX3) { - if (g3opts != (uint32) -1) - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, - g3opts); - else - CopyField(TIFFTAG_GROUP3OPTIONS, g3opts); - } else - CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG); - CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG); - CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII); - break; - } - { - uint32 len32; - void** data; - if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data)) - TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data); - } - { - uint16 ninks; - const char* inknames; - if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) { - TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks); - if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) { - int inknameslen = strlen(inknames) + 1; - const char* cp = inknames; - while (ninks > 1) { - cp = strchr(cp, '\0'); - cp++; - inknameslen += (strlen(cp) + 1); - ninks--; - } - TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames); - } - } - } - { - unsigned short pg0, pg1; - - if (pageInSeq == 1) { - if (pageNum < 0) /* only one input file */ { - if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) - TIFFSetField(out, TIFFTAG_PAGENUMBER, pg0, pg1); - } else - TIFFSetField(out, TIFFTAG_PAGENUMBER, pageNum++, 0); - - } else { - if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) { - if (pageNum < 0) /* only one input file */ - TIFFSetField(out, TIFFTAG_PAGENUMBER, pg0, pg1); - else - TIFFSetField(out, TIFFTAG_PAGENUMBER, pageNum++, 0); - } - } - } - - for (p = tags; p < &tags[NTAGS]; p++) - CopyTag(p->tag, p->count, p->type); - - cf = pickCopyFunc(in, out, bitspersample, samplesperpixel); - return (cf ? (*cf)(in, out, length, width, samplesperpixel) : FALSE); -} - -/* - * Copy Functions. - */ -#define DECLAREcpFunc(x) \ -static int x(TIFF* in, TIFF* out, \ - uint32 imagelength, uint32 imagewidth, tsample_t spp) - -#define DECLAREreadFunc(x) \ -static int x(TIFF* in, \ - uint8* buf, uint32 imagelength, uint32 imagewidth, tsample_t spp) -typedef int (*readFunc)(TIFF*, uint8*, uint32, uint32, tsample_t); - -#define DECLAREwriteFunc(x) \ -static int x(TIFF* out, \ - uint8* buf, uint32 imagelength, uint32 imagewidth, tsample_t spp) -typedef int (*writeFunc)(TIFF*, uint8*, uint32, uint32, tsample_t); - -/* - * Contig -> contig by scanline for rows/strip change. - */ -DECLAREcpFunc(cpContig2ContigByRow) -{ - tsize_t scanlinesize = TIFFScanlineSize(in); - tdata_t buf; - uint32 row; - - buf = _TIFFmalloc(scanlinesize); - if (!buf) - return 0; - _TIFFmemset(buf, 0, scanlinesize); - (void) imagewidth; (void) spp; - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(in, buf, row, 0) < 0 && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - goto bad; - } - if (TIFFWriteScanline(out, buf, row, 0) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write scanline %lu", - (unsigned long) row); - goto bad; - } - } - _TIFFfree(buf); - return 1; -bad: - _TIFFfree(buf); - return 0; -} - - -typedef void biasFn (void *image, void *bias, uint32 pixels); - -#define subtract(bits) \ -static void subtract##bits (void *i, void *b, uint32 pixels)\ -{\ - uint##bits *image = i;\ - uint##bits *bias = b;\ - while (pixels--) {\ - *image = *image > *bias ? *image-*bias : 0;\ - image++, bias++; \ - } \ -} - -subtract(8) -subtract(16) -subtract(32) - -static biasFn *lineSubtractFn (unsigned bits) -{ - switch (bits) { - case 8: return subtract8; - case 16: return subtract16; - case 32: return subtract32; - } - return NULL; -} - -/* - * Contig -> contig by scanline while subtracting a bias image. - */ -DECLAREcpFunc(cpBiasedContig2Contig) -{ - if (spp == 1) { - tsize_t biasSize = TIFFScanlineSize(bias); - tsize_t bufSize = TIFFScanlineSize(in); - tdata_t buf, biasBuf; - uint32 biasWidth = 0, biasLength = 0; - TIFFGetField(bias, TIFFTAG_IMAGEWIDTH, &biasWidth); - TIFFGetField(bias, TIFFTAG_IMAGELENGTH, &biasLength); - if (biasSize == bufSize && - imagelength == biasLength && imagewidth == biasWidth) { - uint16 sampleBits = 0; - biasFn *subtractLine; - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &sampleBits); - subtractLine = lineSubtractFn (sampleBits); - if (subtractLine) { - uint32 row; - buf = _TIFFmalloc(bufSize); - biasBuf = _TIFFmalloc(bufSize); - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(in, buf, row, 0) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - goto bad; - } - if (TIFFReadScanline(bias, biasBuf, row, 0) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read biased scanline %lu", - (unsigned long) row); - goto bad; - } - subtractLine (buf, biasBuf, imagewidth); - if (TIFFWriteScanline(out, buf, row, 0) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write scanline %lu", - (unsigned long) row); - goto bad; - } - } - - _TIFFfree(buf); - _TIFFfree(biasBuf); - TIFFSetDirectory(bias, - TIFFCurrentDirectory(bias)); /* rewind */ - return 1; -bad: - _TIFFfree(buf); - _TIFFfree(biasBuf); - return 0; - } else { - TIFFError(TIFFFileName(in), - "No support for biasing %d bit pixels\n", - sampleBits); - return 0; - } - } - TIFFError(TIFFFileName(in), - "Bias image %s,%d\nis not the same size as %s,%d\n", - TIFFFileName(bias), TIFFCurrentDirectory(bias), - TIFFFileName(in), TIFFCurrentDirectory(in)); - return 0; - } else { - TIFFError(TIFFFileName(in), - "Can't bias %s,%d as it has >1 Sample/Pixel\n", - TIFFFileName(in), TIFFCurrentDirectory(in)); - return 0; - } - -} - - -/* - * Strip -> strip for change in encoding. - */ -DECLAREcpFunc(cpDecodedStrips) -{ - tsize_t stripsize = TIFFStripSize(in); - tdata_t buf = _TIFFmalloc(stripsize); - - (void) imagewidth; (void) spp; - if (buf) { - tstrip_t s, ns = TIFFNumberOfStrips(in); - uint32 row = 0; - _TIFFmemset(buf, 0, stripsize); - for (s = 0; s < ns; s++) { - tsize_t cc = (row + rowsperstrip > imagelength) ? - TIFFVStripSize(in, imagelength - row) : stripsize; - if (TIFFReadEncodedStrip(in, s, buf, cc) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read strip %lu", - (unsigned long) s); - goto bad; - } - if (TIFFWriteEncodedStrip(out, s, buf, cc) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write strip %lu", - (unsigned long) s); - goto bad; - } - row += rowsperstrip; - } - _TIFFfree(buf); - return 1; - } else { - TIFFError(TIFFFileName(in), - "Error, can't allocate memory buffer of size %lu " - "to read strips", (unsigned long) stripsize); - return 0; - } - -bad: - _TIFFfree(buf); - return 0; -} - -/* - * Separate -> separate by row for rows/strip change. - */ -DECLAREcpFunc(cpSeparate2SeparateByRow) -{ - tsize_t scanlinesize = TIFFScanlineSize(in); - tdata_t buf; - uint32 row; - tsample_t s; - - (void) imagewidth; - buf = _TIFFmalloc(scanlinesize); - if (!buf) - return 0; - _TIFFmemset(buf, 0, scanlinesize); - for (s = 0; s < spp; s++) { - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(in, buf, row, s) < 0 && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - goto bad; - } - if (TIFFWriteScanline(out, buf, row, s) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write scanline %lu", - (unsigned long) row); - goto bad; - } - } - } - _TIFFfree(buf); - return 1; -bad: - _TIFFfree(buf); - return 0; -} - -/* - * Contig -> separate by row. - */ -DECLAREcpFunc(cpContig2SeparateByRow) -{ - tsize_t scanlinesizein = TIFFScanlineSize(in); - tsize_t scanlinesizeout = TIFFScanlineSize(out); - tdata_t inbuf; - tdata_t outbuf; - register uint8 *inp, *outp; - register uint32 n; - uint32 row; - tsample_t s; - - inbuf = _TIFFmalloc(scanlinesizein); - outbuf = _TIFFmalloc(scanlinesizeout); - if (!inbuf || !outbuf) - return 0; - _TIFFmemset(inbuf, 0, scanlinesizein); - _TIFFmemset(outbuf, 0, scanlinesizeout); - /* unpack channels */ - for (s = 0; s < spp; s++) { - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(in, inbuf, row, 0) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - goto bad; - } - inp = ((uint8*)inbuf) + s; - outp = (uint8*)outbuf; - for (n = imagewidth; n-- > 0;) { - *outp++ = *inp; - inp += spp; - } - if (TIFFWriteScanline(out, outbuf, row, s) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write scanline %lu", - (unsigned long) row); - goto bad; - } - } - } - if (inbuf) _TIFFfree(inbuf); - if (outbuf) _TIFFfree(outbuf); - return 1; -bad: - if (inbuf) _TIFFfree(inbuf); - if (outbuf) _TIFFfree(outbuf); - return 0; -} - -/* - * Separate -> contig by row. - */ -DECLAREcpFunc(cpSeparate2ContigByRow) -{ - tsize_t scanlinesizein = TIFFScanlineSize(in); - tsize_t scanlinesizeout = TIFFScanlineSize(out); - tdata_t inbuf; - tdata_t outbuf; - register uint8 *inp, *outp; - register uint32 n; - uint32 row; - tsample_t s; - - inbuf = _TIFFmalloc(scanlinesizein); - outbuf = _TIFFmalloc(scanlinesizeout); - if (!inbuf || !outbuf) - return 0; - _TIFFmemset(inbuf, 0, scanlinesizein); - _TIFFmemset(outbuf, 0, scanlinesizeout); - for (row = 0; row < imagelength; row++) { - /* merge channels */ - for (s = 0; s < spp; s++) { - if (TIFFReadScanline(in, inbuf, row, s) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - goto bad; - } - inp = (uint8*)inbuf; - outp = ((uint8*)outbuf) + s; - for (n = imagewidth; n-- > 0;) { - *outp = *inp++; - outp += spp; - } - } - if (TIFFWriteScanline(out, outbuf, row, 0) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write scanline %lu", - (unsigned long) row); - goto bad; - } - } - if (inbuf) _TIFFfree(inbuf); - if (outbuf) _TIFFfree(outbuf); - return 1; -bad: - if (inbuf) _TIFFfree(inbuf); - if (outbuf) _TIFFfree(outbuf); - return 0; -} - -static void -cpStripToTile(uint8* out, uint8* in, - uint32 rows, uint32 cols, int outskew, int inskew) -{ - while (rows-- > 0) { - uint32 j = cols; - while (j-- > 0) - *out++ = *in++; - out += outskew; - in += inskew; - } -} - -static void -cpContigBufToSeparateBuf(uint8* out, uint8* in, - uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp, - int bytes_per_sample ) -{ - while (rows-- > 0) { - uint32 j = cols; - while (j-- > 0) - { - int n = bytes_per_sample; - - while( n-- ) { - *out++ = *in++; - } - in += (spp-1) * bytes_per_sample; - } - out += outskew; - in += inskew; - } -} - -static void -cpSeparateBufToContigBuf(uint8* out, uint8* in, - uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp, - int bytes_per_sample) -{ - while (rows-- > 0) { - uint32 j = cols; - while (j-- > 0) { - int n = bytes_per_sample; - - while( n-- ) { - *out++ = *in++; - } - out += (spp-1)*bytes_per_sample; - } - out += outskew; - in += inskew; - } -} - -static int -cpImage(TIFF* in, TIFF* out, readFunc fin, writeFunc fout, - uint32 imagelength, uint32 imagewidth, tsample_t spp) -{ - int status = 0; - tdata_t buf = NULL; - tsize_t scanlinesize = TIFFRasterScanlineSize(in); - tsize_t bytes = scanlinesize * (tsize_t)imagelength; - /* - * XXX: Check for integer overflow. - */ - if (scanlinesize - && imagelength - && bytes / (tsize_t)imagelength == scanlinesize) { - buf = _TIFFmalloc(bytes); - if (buf) { - if ((*fin)(in, (uint8*)buf, imagelength, - imagewidth, spp)) { - status = (*fout)(out, (uint8*)buf, - imagelength, imagewidth, spp); - } - _TIFFfree(buf); - } else { - TIFFError(TIFFFileName(in), - "Error, can't allocate space for image buffer"); - } - } else { - TIFFError(TIFFFileName(in), "Error, no space for image buffer"); - } - - return status; -} - -DECLAREreadFunc(readContigStripsIntoBuffer) -{ - tsize_t scanlinesize = TIFFScanlineSize(in); - uint8* bufp = buf; - uint32 row; - - (void) imagewidth; (void) spp; - for (row = 0; row < imagelength; row++) { - if (TIFFReadScanline(in, (tdata_t) bufp, row, 0) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - return 0; - } - bufp += scanlinesize; - } - - return 1; -} - -DECLAREreadFunc(readSeparateStripsIntoBuffer) -{ - int status = 1; - tsize_t scanlinesize = TIFFScanlineSize(in); - tdata_t scanline; - if (!scanlinesize) - return 0; - - scanline = _TIFFmalloc(scanlinesize); - if (!scanline) - return 0; - _TIFFmemset(scanline, 0, scanlinesize); - (void) imagewidth; - if (scanline) { - uint8* bufp = (uint8*) buf; - uint32 row; - tsample_t s; - for (row = 0; row < imagelength; row++) { - /* merge channels */ - for (s = 0; s < spp; s++) { - uint8* bp = bufp + s; - tsize_t n = scanlinesize; - uint8* sbuf = scanline; - - if (TIFFReadScanline(in, scanline, row, s) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read scanline %lu", - (unsigned long) row); - status = 0; - goto done; - } - while (n-- > 0) - *bp = *sbuf++, bp += spp; - } - bufp += scanlinesize * spp; - } - } - -done: - _TIFFfree(scanline); - return status; -} - -DECLAREreadFunc(readContigTilesIntoBuffer) -{ - int status = 1; - tsize_t tilesize = TIFFTileSize(in); - tdata_t tilebuf; - uint32 imagew = TIFFScanlineSize(in); - uint32 tilew = TIFFTileRowSize(in); - int iskew = imagew - tilew; - uint8* bufp = (uint8*) buf; - uint32 tw, tl; - uint32 row; - - (void) spp; - tilebuf = _TIFFmalloc(tilesize); - if (tilebuf == 0) - return 0; - _TIFFmemset(tilebuf, 0, tilesize); - (void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw); - (void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl); - - for (row = 0; row < imagelength; row += tl) { - uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl; - uint32 colb = 0; - uint32 col; - - for (col = 0; col < imagewidth; col += tw) { - if (TIFFReadTile(in, tilebuf, col, row, 0, 0) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read tile at %lu %lu", - (unsigned long) col, - (unsigned long) row); - status = 0; - goto done; - } - if (colb + tilew > imagew) { - uint32 width = imagew - colb; - uint32 oskew = tilew - width; - cpStripToTile(bufp + colb, - tilebuf, nrow, width, - oskew + iskew, oskew ); - } else - cpStripToTile(bufp + colb, - tilebuf, nrow, tilew, - iskew, 0); - colb += tilew; - } - bufp += imagew * nrow; - } -done: - _TIFFfree(tilebuf); - return status; -} - -DECLAREreadFunc(readSeparateTilesIntoBuffer) -{ - int status = 1; - uint32 imagew = TIFFRasterScanlineSize(in); - uint32 tilew = TIFFTileRowSize(in); - int iskew = imagew - tilew*spp; - tsize_t tilesize = TIFFTileSize(in); - tdata_t tilebuf; - uint8* bufp = (uint8*) buf; - uint32 tw, tl; - uint32 row; - uint16 bps, bytes_per_sample; - - tilebuf = _TIFFmalloc(tilesize); - if (tilebuf == 0) - return 0; - _TIFFmemset(tilebuf, 0, tilesize); - (void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw); - (void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl); - (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); - assert( bps % 8 == 0 ); - bytes_per_sample = bps/8; - - for (row = 0; row < imagelength; row += tl) { - uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl; - uint32 colb = 0; - uint32 col; - - for (col = 0; col < imagewidth; col += tw) { - tsample_t s; - - for (s = 0; s < spp; s++) { - if (TIFFReadTile(in, tilebuf, col, row, 0, s) < 0 - && !ignore) { - TIFFError(TIFFFileName(in), - "Error, can't read tile at %lu %lu, " - "sample %lu", - (unsigned long) col, - (unsigned long) row, - (unsigned long) s); - status = 0; - goto done; - } - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - if (colb + tilew*spp > imagew) { - uint32 width = imagew - colb; - int oskew = tilew*spp - width; - cpSeparateBufToContigBuf( - bufp+colb+s*bytes_per_sample, - tilebuf, nrow, - width/(spp*bytes_per_sample), - oskew + iskew, - oskew/spp, spp, - bytes_per_sample); - } else - cpSeparateBufToContigBuf( - bufp+colb+s*bytes_per_sample, - tilebuf, nrow, tw, - iskew, 0, spp, - bytes_per_sample); - } - colb += tilew*spp; - } - bufp += imagew * nrow; - } -done: - _TIFFfree(tilebuf); - return status; -} - -DECLAREwriteFunc(writeBufferToContigStrips) -{ - uint32 row, rowsperstrip; - tstrip_t strip = 0; - - (void) imagewidth; (void) spp; - (void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - for (row = 0; row < imagelength; row += rowsperstrip) { - uint32 nrows = (row+rowsperstrip > imagelength) ? - imagelength-row : rowsperstrip; - tsize_t stripsize = TIFFVStripSize(out, nrows); - if (TIFFWriteEncodedStrip(out, strip++, buf, stripsize) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write strip %u", strip - 1); - return 0; - } - buf += stripsize; - } - return 1; -} - -DECLAREwriteFunc(writeBufferToSeparateStrips) -{ - uint32 rowsize = imagewidth * spp; - uint32 rowsperstrip; - tsize_t stripsize = TIFFStripSize(out); - tdata_t obuf; - tstrip_t strip = 0; - tsample_t s; - - obuf = _TIFFmalloc(stripsize); - if (obuf == NULL) - return (0); - _TIFFmemset(obuf, 0, stripsize); - (void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - for (s = 0; s < spp; s++) { - uint32 row; - for (row = 0; row < imagelength; row += rowsperstrip) { - uint32 nrows = (row+rowsperstrip > imagelength) ? - imagelength-row : rowsperstrip; - tsize_t stripsize = TIFFVStripSize(out, nrows); - - cpContigBufToSeparateBuf( - obuf, (uint8*) buf + row*rowsize + s, - nrows, imagewidth, 0, 0, spp, 1); - if (TIFFWriteEncodedStrip(out, strip++, obuf, stripsize) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write strip %u", - strip - 1); - _TIFFfree(obuf); - return 0; - } - } - } - _TIFFfree(obuf); - return 1; - -} - -DECLAREwriteFunc(writeBufferToContigTiles) -{ - uint32 imagew = TIFFScanlineSize(out); - uint32 tilew = TIFFTileRowSize(out); - int iskew = imagew - tilew; - tsize_t tilesize = TIFFTileSize(out); - tdata_t obuf; - uint8* bufp = (uint8*) buf; - uint32 tl, tw; - uint32 row; - - (void) spp; - - obuf = _TIFFmalloc(TIFFTileSize(out)); - if (obuf == NULL) - return 0; - _TIFFmemset(obuf, 0, tilesize); - (void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl); - (void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw); - for (row = 0; row < imagelength; row += tilelength) { - uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl; - uint32 colb = 0; - uint32 col; - - for (col = 0; col < imagewidth; col += tw) { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - if (colb + tilew > imagew) { - uint32 width = imagew - colb; - int oskew = tilew - width; - cpStripToTile(obuf, bufp + colb, nrow, width, - oskew, oskew + iskew); - } else - cpStripToTile(obuf, bufp + colb, nrow, tilew, - 0, iskew); - if (TIFFWriteTile(out, obuf, col, row, 0, 0) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write tile at %lu %lu", - (unsigned long) col, - (unsigned long) row); - _TIFFfree(obuf); - return 0; - } - colb += tilew; - } - bufp += nrow * imagew; - } - _TIFFfree(obuf); - return 1; -} - -DECLAREwriteFunc(writeBufferToSeparateTiles) -{ - uint32 imagew = TIFFScanlineSize(out); - tsize_t tilew = TIFFTileRowSize(out); - uint32 iimagew = TIFFRasterScanlineSize(out); - int iskew = iimagew - tilew*spp; - tsize_t tilesize = TIFFTileSize(out); - tdata_t obuf; - uint8* bufp = (uint8*) buf; - uint32 tl, tw; - uint32 row; - uint16 bps, bytes_per_sample; - - obuf = _TIFFmalloc(TIFFTileSize(out)); - if (obuf == NULL) - return 0; - _TIFFmemset(obuf, 0, tilesize); - (void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl); - (void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw); - (void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps); - assert( bps % 8 == 0 ); - bytes_per_sample = bps/8; - - for (row = 0; row < imagelength; row += tl) { - uint32 nrow = (row+tl > imagelength) ? imagelength-row : tl; - uint32 colb = 0; - uint32 col; - - for (col = 0; col < imagewidth; col += tw) { - tsample_t s; - for (s = 0; s < spp; s++) { - /* - * Tile is clipped horizontally. Calculate - * visible portion and skewing factors. - */ - if (colb + tilew > imagew) { - uint32 width = (imagew - colb); - int oskew = tilew - width; - - cpContigBufToSeparateBuf(obuf, - bufp + (colb*spp) + s, - nrow, width/bytes_per_sample, - oskew, (oskew*spp)+iskew, spp, - bytes_per_sample); - } else - cpContigBufToSeparateBuf(obuf, - bufp + (colb*spp) + s, - nrow, tilewidth, - 0, iskew, spp, - bytes_per_sample); - if (TIFFWriteTile(out, obuf, col, row, 0, s) < 0) { - TIFFError(TIFFFileName(out), - "Error, can't write tile at %lu %lu " - "sample %lu", - (unsigned long) col, - (unsigned long) row, - (unsigned long) s); - _TIFFfree(obuf); - return 0; - } - } - colb += tilew; - } - bufp += nrow * iimagew; - } - _TIFFfree(obuf); - return 1; -} - -/* - * Contig strips -> contig tiles. - */ -DECLAREcpFunc(cpContigStrips2ContigTiles) -{ - return cpImage(in, out, - readContigStripsIntoBuffer, - writeBufferToContigTiles, - imagelength, imagewidth, spp); -} - -/* - * Contig strips -> separate tiles. - */ -DECLAREcpFunc(cpContigStrips2SeparateTiles) -{ - return cpImage(in, out, - readContigStripsIntoBuffer, - writeBufferToSeparateTiles, - imagelength, imagewidth, spp); -} - -/* - * Separate strips -> contig tiles. - */ -DECLAREcpFunc(cpSeparateStrips2ContigTiles) -{ - return cpImage(in, out, - readSeparateStripsIntoBuffer, - writeBufferToContigTiles, - imagelength, imagewidth, spp); -} - -/* - * Separate strips -> separate tiles. - */ -DECLAREcpFunc(cpSeparateStrips2SeparateTiles) -{ - return cpImage(in, out, - readSeparateStripsIntoBuffer, - writeBufferToSeparateTiles, - imagelength, imagewidth, spp); -} - -/* - * Contig strips -> contig tiles. - */ -DECLAREcpFunc(cpContigTiles2ContigTiles) -{ - return cpImage(in, out, - readContigTilesIntoBuffer, - writeBufferToContigTiles, - imagelength, imagewidth, spp); -} - -/* - * Contig tiles -> separate tiles. - */ -DECLAREcpFunc(cpContigTiles2SeparateTiles) -{ - return cpImage(in, out, - readContigTilesIntoBuffer, - writeBufferToSeparateTiles, - imagelength, imagewidth, spp); -} - -/* - * Separate tiles -> contig tiles. - */ -DECLAREcpFunc(cpSeparateTiles2ContigTiles) -{ - return cpImage(in, out, - readSeparateTilesIntoBuffer, - writeBufferToContigTiles, - imagelength, imagewidth, spp); -} - -/* - * Separate tiles -> separate tiles (tile dimension change). - */ -DECLAREcpFunc(cpSeparateTiles2SeparateTiles) -{ - return cpImage(in, out, - readSeparateTilesIntoBuffer, - writeBufferToSeparateTiles, - imagelength, imagewidth, spp); -} - -/* - * Contig tiles -> contig tiles (tile dimension change). - */ -DECLAREcpFunc(cpContigTiles2ContigStrips) -{ - return cpImage(in, out, - readContigTilesIntoBuffer, - writeBufferToContigStrips, - imagelength, imagewidth, spp); -} - -/* - * Contig tiles -> separate strips. - */ -DECLAREcpFunc(cpContigTiles2SeparateStrips) -{ - return cpImage(in, out, - readContigTilesIntoBuffer, - writeBufferToSeparateStrips, - imagelength, imagewidth, spp); -} - -/* - * Separate tiles -> contig strips. - */ -DECLAREcpFunc(cpSeparateTiles2ContigStrips) -{ - return cpImage(in, out, - readSeparateTilesIntoBuffer, - writeBufferToContigStrips, - imagelength, imagewidth, spp); -} - -/* - * Separate tiles -> separate strips. - */ -DECLAREcpFunc(cpSeparateTiles2SeparateStrips) -{ - return cpImage(in, out, - readSeparateTilesIntoBuffer, - writeBufferToSeparateStrips, - imagelength, imagewidth, spp); -} - -/* - * Select the appropriate copy function to use. - */ -static copyFunc -pickCopyFunc(TIFF* in, TIFF* out, uint16 bitspersample, uint16 samplesperpixel) -{ - uint16 shortv; - uint32 w, l, tw, tl; - int bychunk; - - (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv); - if (shortv != config && bitspersample != 8 && samplesperpixel > 1) { - fprintf(stderr, - "%s: Cannot handle different planar configuration w/ bits/sample != 8\n", - TIFFFileName(in)); - return (NULL); - } - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &w); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &l); - if (!(TIFFIsTiled(out) || TIFFIsTiled(in))) { - uint32 irps = (uint32) -1L; - TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &irps); - /* if biased, force decoded copying to allow image subtraction */ - bychunk = !bias && (rowsperstrip == irps); - }else{ /* either in or out is tiled */ - if (bias) { - fprintf(stderr, - "%s: Cannot handle tiled configuration w/bias image\n", - TIFFFileName(in)); - return (NULL); - } - if (TIFFIsTiled(out)) { - if (!TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw)) - tw = w; - if (!TIFFGetField(in, TIFFTAG_TILELENGTH, &tl)) - tl = l; - bychunk = (tw == tilewidth && tl == tilelength); - } else { /* out's not, so in must be tiled */ - TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(in, TIFFTAG_TILELENGTH, &tl); - bychunk = (tw == w && tl == rowsperstrip); - } - } -#define T 1 -#define F 0 -#define pack(a,b,c,d,e) ((long)(((a)<<11)|((b)<<3)|((c)<<2)|((d)<<1)|(e))) - switch(pack(shortv,config,TIFFIsTiled(in),TIFFIsTiled(out),bychunk)) { - /* Strips -> Tiles */ - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, F,T,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, F,T,T): - return cpContigStrips2ContigTiles; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, F,T,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, F,T,T): - return cpContigStrips2SeparateTiles; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, F,T,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, F,T,T): - return cpSeparateStrips2ContigTiles; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, F,T,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, F,T,T): - return cpSeparateStrips2SeparateTiles; - /* Tiles -> Tiles */ - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, T,T,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, T,T,T): - return cpContigTiles2ContigTiles; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, T,T,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, T,T,T): - return cpContigTiles2SeparateTiles; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, T,T,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, T,T,T): - return cpSeparateTiles2ContigTiles; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, T,T,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, T,T,T): - return cpSeparateTiles2SeparateTiles; - /* Tiles -> Strips */ - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, T,F,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, T,F,T): - return cpContigTiles2ContigStrips; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, T,F,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, T,F,T): - return cpContigTiles2SeparateStrips; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, T,F,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, T,F,T): - return cpSeparateTiles2ContigStrips; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, T,F,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, T,F,T): - return cpSeparateTiles2SeparateStrips; - /* Strips -> Strips */ - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, F,F,F): - return bias ? cpBiasedContig2Contig : cpContig2ContigByRow; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_CONTIG, F,F,T): - return cpDecodedStrips; - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, F,F,F): - case pack(PLANARCONFIG_CONTIG, PLANARCONFIG_SEPARATE, F,F,T): - return cpContig2SeparateByRow; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, F,F,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_CONTIG, F,F,T): - return cpSeparate2ContigByRow; - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, F,F,F): - case pack(PLANARCONFIG_SEPARATE, PLANARCONFIG_SEPARATE, F,F,T): - return cpSeparate2SeparateByRow; - } -#undef pack -#undef F -#undef T - fprintf(stderr, "tiffcp: %s: Don't know how to copy/convert image.\n", - TIFFFileName(in)); - return (NULL); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffcrop.c b/tiff/tools/tiffcrop.c deleted file mode 100755 index 1d6b561..0000000 --- a/tiff/tools/tiffcrop.c +++ /dev/null @@ -1,9091 +0,0 @@ -/* $Id: tiffcrop.c,v 1.25 2014-12-26 16:32:32 bfriesen Exp $ */ - -/* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of - * the image data through additional options listed below - * - * Original code: - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * Additions (c) Richard Nolde 2006-2010 - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS OR ANY OTHER COPYRIGHT - * HOLDERS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL - * DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND - * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE - * OR PERFORMANCE OF THIS SOFTWARE. - * - * Some portions of the current code are derived from tiffcp, primarly in - * the areas of lowlevel reading and writing of TAGS, scanlines and tiles though - * some of the original functions have been extended to support arbitrary bit - * depths. These functions are presented at the top of this file. - * - * Add support for the options below to extract sections of image(s) - * and to modify the whole image or selected portions of each image by - * rotations, mirroring, and colorscale/colormap inversion of selected - * types of TIFF images when appropriate. Some color model dependent - * functions are restricted to bilevel or 8 bit per sample data. - * See the man page for the full explanations. - * - * New Options: - * -h Display the syntax guide. - * -v Report the version and last build date for tiffcrop and libtiff. - * -z x1,y1,x2,y2:x3,y3,x4,y4:..xN,yN,xN + 1, yN + 1 - * Specify a series of coordinates to define rectangular - * regions by the top left and lower right corners. - * -e c|d|i|m|s export mode for images and selections from input images - * combined All images and selections are written to a single file (default) - * with multiple selections from one image combined into a single image - * divided All images and selections are written to a single file - * with each selection from one image written to a new image - * image Each input image is written to a new file (numeric filename sequence) - * with multiple selections from the image combined into one image - * multiple Each input image is written to a new file (numeric filename sequence) - * with each selection from the image written to a new image - * separated Individual selections from each image are written to separate files - * -U units [in, cm, px ] inches, centimeters or pixels - * -H # Set horizontal resolution of output images to # - * -V # Set vertical resolution of output images to # - * -J # Horizontal margin of output page to # expressed in current - * units when sectioning image into columns x rows - * using the -S cols:rows option. - * -K # Vertical margin of output page to # expressed in current - * units when sectioning image into columns x rows - * using the -S cols:rows option. - * -X # Horizontal dimension of region to extract expressed in current - * units - * -Y # Vertical dimension of region to extract expressed in current - * units - * -O orient Orientation for output image, portrait, landscape, auto - * -P page Page size for output image segments, eg letter, legal, tabloid, - * etc. - * -S cols:rows Divide the image into equal sized segments using cols across - * and rows down - * -E t|l|r|b Edge to use as origin - * -m #,#,#,# Margins from edges for selection: top, left, bottom, right - * (commas separated) - * -Z #:#,#:# Zones of the image designated as zone X of Y, - * eg 1:3 would be first of three equal portions measured - * from reference edge - * -N odd|even|#,#-#,#|last - * Select sequences and/or ranges of images within file - * to process. The words odd or even may be used to specify - * all odd or even numbered images the word last may be used - * in place of a number in the sequence to indicate the final - * image in the file without knowing how many images there are. - * -R # Rotate image or crop selection by 90,180,or 270 degrees - * clockwise - * -F h|v Flip (mirror) image or crop selection horizontally - * or vertically - * -I [black|white|data|both] - * Invert color space, eg dark to light for bilevel and grayscale images - * If argument is white or black, set the PHOTOMETRIC_INTERPRETATION - * tag to MinIsBlack or MinIsWhite without altering the image data - * If the argument is data or both, the image data are modified: - * both inverts the data and the PHOTOMETRIC_INTERPRETATION tag, - * data inverts the data but not the PHOTOMETRIC_INTERPRETATION tag - * -D input:,output:,format:,level:N,debug:N - * Dump raw data for input and/or output images to individual files - * in raw (binary) format or text (ASCII) representing binary data - * as strings of 1s and 0s. The filename arguments are used as stems - * from which individual files are created for each image. Text format - * includes annotations for image parameters and scanline info. Level - * selects which functions dump data, with higher numbers selecting - * lower level, scanline level routines. Debug reports a limited set - * of messages to monitor progess without enabling dump logs. - */ - -static char tiffcrop_version_id[] = "2.4"; -static char tiffcrop_rev_date[] = "12-13-2010"; - -#include "tif_config.h" -#include "tiffiop.h" - -#include -#include -#include -#include -#include -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef HAVE_STDINT_H -# include -#endif - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#if defined(VMS) -# define unlink delete -#endif - -#ifndef PATH_MAX -#define PATH_MAX 1024 -#endif - -#ifndef streq -#define streq(a,b) (strcmp((a),(b)) == 0) -#endif -#define strneq(a,b,n) (strncmp((a),(b),(n)) == 0) - -#define TRUE 1 -#define FALSE 0 - -#ifndef TIFFhowmany -#define TIFFhowmany(x, y) ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) -#define TIFFhowmany8(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3) -#endif - -/* - * Definitions and data structures required to support cropping and image - * manipulations. - */ - -#define EDGE_TOP 1 -#define EDGE_LEFT 2 -#define EDGE_BOTTOM 3 -#define EDGE_RIGHT 4 -#define EDGE_CENTER 5 - -#define MIRROR_HORIZ 1 -#define MIRROR_VERT 2 -#define MIRROR_BOTH 3 -#define ROTATECW_90 8 -#define ROTATECW_180 16 -#define ROTATECW_270 32 -#define ROTATE_ANY ROTATECW_90 || ROTATECW_180 || ROTATECW_270 - -#define CROP_NONE 0 -#define CROP_MARGINS 1 -#define CROP_WIDTH 2 -#define CROP_LENGTH 4 -#define CROP_ZONES 8 -#define CROP_REGIONS 16 -#define CROP_ROTATE 32 -#define CROP_MIRROR 64 -#define CROP_INVERT 128 - -/* Modes for writing out images and selections */ -#define ONE_FILE_COMPOSITE 0 /* One file, sections combined sections */ -#define ONE_FILE_SEPARATED 1 /* One file, sections to new IFDs */ -#define FILE_PER_IMAGE_COMPOSITE 2 /* One file per image, combined sections */ -#define FILE_PER_IMAGE_SEPARATED 3 /* One file per input image */ -#define FILE_PER_SELECTION 4 /* One file per selection */ - -#define COMPOSITE_IMAGES 0 /* Selections combined into one image */ -#define SEPARATED_IMAGES 1 /* Selections saved to separate images */ - -#define STRIP 1 -#define TILE 2 - -#define MAX_REGIONS 8 /* number of regions to extract from a single page */ -#define MAX_OUTBUFFS 8 /* must match larger of zones or regions */ -#define MAX_SECTIONS 32 /* number of sections per page to write to output */ -#define MAX_IMAGES 2048 /* number of images in descrete list, not in the file */ -#define MAX_SAMPLES 8 /* maximum number of samples per pixel supported */ -#define MAX_BITS_PER_SAMPLE 64 /* maximum bit depth supported */ -#define MAX_EXPORT_PAGES 999999 /* maximum number of export pages per file */ - -#define DUMP_NONE 0 -#define DUMP_TEXT 1 -#define DUMP_RAW 2 - -/* Offsets into buffer for margins and fixed width and length segments */ -struct offset { - uint32 tmargin; - uint32 lmargin; - uint32 bmargin; - uint32 rmargin; - uint32 crop_width; - uint32 crop_length; - uint32 startx; - uint32 endx; - uint32 starty; - uint32 endy; -}; - -/* Description of a zone within the image. Position 1 of 3 zones would be - * the first third of the image. These are computed after margins and - * width/length requests are applied so that you can extract multiple - * zones from within a larger region for OCR or barcode recognition. - */ - -struct buffinfo { - uint32 size; /* size of this buffer */ - unsigned char *buffer; /* address of the allocated buffer */ -}; - -struct zone { - int position; /* ordinal of segment to be extracted */ - int total; /* total equal sized divisions of crop area */ - }; - -struct pageseg { - uint32 x1; /* index of left edge */ - uint32 x2; /* index of right edge */ - uint32 y1; /* index of top edge */ - uint32 y2; /* index of bottom edge */ - int position; /* ordinal of segment to be extracted */ - int total; /* total equal sized divisions of crop area */ - uint32 buffsize; /* size of buffer needed to hold the cropped zone */ -}; - -struct coordpairs { - double X1; /* index of left edge in current units */ - double X2; /* index of right edge in current units */ - double Y1; /* index of top edge in current units */ - double Y2; /* index of bottom edge in current units */ -}; - -struct region { - uint32 x1; /* pixel offset of left edge */ - uint32 x2; /* pixel offset of right edge */ - uint32 y1; /* pixel offset of top edge */ - uint32 y2; /* picel offset of bottom edge */ - uint32 width; /* width in pixels */ - uint32 length; /* length in pixels */ - uint32 buffsize; /* size of buffer needed to hold the cropped region */ - unsigned char *buffptr; /* address of start of the region */ -}; - -/* Cropping parameters from command line and image data - * Note: This should be renamed to proc_opts and expanded to include all current globals - * if possible, but each function that accesses global variables will have to be redone. - */ -struct crop_mask { - double width; /* Selection width for master crop region in requested units */ - double length; /* Selection length for master crop region in requesed units */ - double margins[4]; /* Top, left, bottom, right margins */ - float xres; /* Horizontal resolution read from image*/ - float yres; /* Vertical resolution read from image */ - uint32 combined_width; /* Width of combined cropped zones */ - uint32 combined_length; /* Length of combined cropped zones */ - uint32 bufftotal; /* Size of buffer needed to hold all the cropped region */ - uint16 img_mode; /* Composite or separate images created from zones or regions */ - uint16 exp_mode; /* Export input images or selections to one or more files */ - uint16 crop_mode; /* Crop options to be applied */ - uint16 res_unit; /* Resolution unit for margins and selections */ - uint16 edge_ref; /* Reference edge for sections extraction and combination */ - uint16 rotation; /* Clockwise rotation of the extracted region or image */ - uint16 mirror; /* Mirror extracted region or image horizontally or vertically */ - uint16 invert; /* Invert the color map of image or region */ - uint16 photometric; /* Status of photometric interpretation for inverted image */ - uint16 selections; /* Number of regions or zones selected */ - uint16 regions; /* Number of regions delimited by corner coordinates */ - struct region regionlist[MAX_REGIONS]; /* Regions within page or master crop region */ - uint16 zones; /* Number of zones delimited by Ordinal:Total requested */ - struct zone zonelist[MAX_REGIONS]; /* Zones indices to define a region */ - struct coordpairs corners[MAX_REGIONS]; /* Coordinates of upper left and lower right corner */ -}; - -#define MAX_PAPERNAMES 49 -#define MAX_PAPERNAME_LENGTH 15 -#define DEFAULT_RESUNIT RESUNIT_INCH -#define DEFAULT_PAGE_HEIGHT 14.0 -#define DEFAULT_PAGE_WIDTH 8.5 -#define DEFAULT_RESOLUTION 300 -#define DEFAULT_PAPER_SIZE "legal" - -#define ORIENTATION_NONE 0 -#define ORIENTATION_PORTRAIT 1 -#define ORIENTATION_LANDSCAPE 2 -#define ORIENTATION_SEASCAPE 4 -#define ORIENTATION_AUTO 16 - -#define PAGE_MODE_NONE 0 -#define PAGE_MODE_RESOLUTION 1 -#define PAGE_MODE_PAPERSIZE 2 -#define PAGE_MODE_MARGINS 4 -#define PAGE_MODE_ROWSCOLS 8 - -#define INVERT_DATA_ONLY 10 -#define INVERT_DATA_AND_TAG 11 - -struct paperdef { - char name[MAX_PAPERNAME_LENGTH]; - double width; - double length; - double asratio; - }; - -/* European page sizes corrected from update sent by - * thomas . jarosch @ intra2net . com on 5/7/2010 - * Paper Size Width Length Aspect Ratio */ -struct paperdef PaperTable[MAX_PAPERNAMES] = { - {"default", 8.500, 14.000, 0.607}, - {"pa4", 8.264, 11.000, 0.751}, - {"letter", 8.500, 11.000, 0.773}, - {"legal", 8.500, 14.000, 0.607}, - {"half-letter", 8.500, 5.514, 1.542}, - {"executive", 7.264, 10.528, 0.690}, - {"tabloid", 11.000, 17.000, 0.647}, - {"11x17", 11.000, 17.000, 0.647}, - {"ledger", 17.000, 11.000, 1.545}, - {"archa", 9.000, 12.000, 0.750}, - {"archb", 12.000, 18.000, 0.667}, - {"archc", 18.000, 24.000, 0.750}, - {"archd", 24.000, 36.000, 0.667}, - {"arche", 36.000, 48.000, 0.750}, - {"csheet", 17.000, 22.000, 0.773}, - {"dsheet", 22.000, 34.000, 0.647}, - {"esheet", 34.000, 44.000, 0.773}, - {"superb", 11.708, 17.042, 0.687}, - {"commercial", 4.139, 9.528, 0.434}, - {"monarch", 3.889, 7.528, 0.517}, - {"envelope-dl", 4.333, 8.681, 0.499}, - {"envelope-c5", 6.389, 9.028, 0.708}, - {"europostcard", 4.139, 5.833, 0.710}, - {"a0", 33.110, 46.811, 0.707}, - {"a1", 23.386, 33.110, 0.706}, - {"a2", 16.535, 23.386, 0.707}, - {"a3", 11.693, 16.535, 0.707}, - {"a4", 8.268, 11.693, 0.707}, - {"a5", 5.827, 8.268, 0.705}, - {"a6", 4.134, 5.827, 0.709}, - {"a7", 2.913, 4.134, 0.705}, - {"a8", 2.047, 2.913, 0.703}, - {"a9", 1.457, 2.047, 0.712}, - {"a10", 1.024, 1.457, 0.703}, - {"b0", 39.370, 55.669, 0.707}, - {"b1", 27.835, 39.370, 0.707}, - {"b2", 19.685, 27.835, 0.707}, - {"b3", 13.898, 19.685, 0.706}, - {"b4", 9.843, 13.898, 0.708}, - {"b5", 6.929, 9.843, 0.704}, - {"b6", 4.921, 6.929, 0.710}, - {"c0", 36.102, 51.063, 0.707}, - {"c1", 25.512, 36.102, 0.707}, - {"c2", 18.031, 25.512, 0.707}, - {"c3", 12.756, 18.031, 0.707}, - {"c4", 9.016, 12.756, 0.707}, - {"c5", 6.378, 9.016, 0.707}, - {"c6", 4.488, 6.378, 0.704}, - {"", 0.000, 0.000, 1.000} -}; - -/* Structure to define input image parameters */ -struct image_data { - float xres; - float yres; - uint32 width; - uint32 length; - uint16 res_unit; - uint16 bps; - uint16 spp; - uint16 planar; - uint16 photometric; - uint16 orientation; - uint16 compression; - uint16 adjustments; -}; - -/* Structure to define the output image modifiers */ -struct pagedef { - char name[16]; - double width; /* width in pixels */ - double length; /* length in pixels */ - double hmargin; /* margins to subtract from width of sections */ - double vmargin; /* margins to subtract from height of sections */ - double hres; /* horizontal resolution for output */ - double vres; /* vertical resolution for output */ - uint32 mode; /* bitmask of modifiers to page format */ - uint16 res_unit; /* resolution unit for output image */ - unsigned int rows; /* number of section rows */ - unsigned int cols; /* number of section cols */ - unsigned int orient; /* portrait, landscape, seascape, auto */ -}; - -struct dump_opts { - int debug; - int format; - int level; - char mode[4]; - char infilename[PATH_MAX + 1]; - char outfilename[PATH_MAX + 1]; - FILE *infile; - FILE *outfile; - }; - -/* globals */ -static int outtiled = -1; -static uint32 tilewidth = 0; -static uint32 tilelength = 0; - -static uint16 config = 0; -static uint16 compression = 0; -static uint16 predictor = 0; -static uint16 fillorder = 0; -static uint32 rowsperstrip = 0; -static uint32 g3opts = 0; -static int ignore = FALSE; /* if true, ignore read errors */ -static uint32 defg3opts = (uint32) -1; -static int quality = 100; /* JPEG quality */ -/* static int jpegcolormode = -1; was JPEGCOLORMODE_RGB; */ -static int jpegcolormode = JPEGCOLORMODE_RGB; -static uint16 defcompression = (uint16) -1; -static uint16 defpredictor = (uint16) -1; -static int pageNum = 0; -static int little_endian = 1; - -/* Functions adapted from tiffcp with additions or significant modifications */ -static int readContigStripsIntoBuffer (TIFF*, uint8*); -static int readSeparateStripsIntoBuffer (TIFF*, uint8*, uint32, uint32, tsample_t, struct dump_opts *); -static int readContigTilesIntoBuffer (TIFF*, uint8*, uint32, uint32, uint32, uint32, tsample_t, uint16); -static int readSeparateTilesIntoBuffer (TIFF*, uint8*, uint32, uint32, uint32, uint32, tsample_t, uint16); -static int writeBufferToContigStrips (TIFF*, uint8*, uint32); -static int writeBufferToContigTiles (TIFF*, uint8*, uint32, uint32, tsample_t, struct dump_opts *); -static int writeBufferToSeparateStrips (TIFF*, uint8*, uint32, uint32, tsample_t, struct dump_opts *); -static int writeBufferToSeparateTiles (TIFF*, uint8*, uint32, uint32, tsample_t, struct dump_opts *); -static int extractContigSamplesToBuffer (uint8 *, uint8 *, uint32, uint32, tsample_t, - uint16, uint16, struct dump_opts *); -static int processCompressOptions(char*); -static void usage(void); - -/* All other functions by Richard Nolde, not found in tiffcp */ -static void initImageData (struct image_data *); -static void initCropMasks (struct crop_mask *); -static void initPageSetup (struct pagedef *, struct pageseg *, struct buffinfo []); -static void initDumpOptions(struct dump_opts *); - -/* Command line and file naming functions */ -void process_command_opts (int, char *[], char *, char *, uint32 *, - uint16 *, uint16 *, uint32 *, uint32 *, uint32 *, - struct crop_mask *, struct pagedef *, - struct dump_opts *, - unsigned int *, unsigned int *); -static int update_output_file (TIFF **, char *, int, char *, unsigned int *); - - -/* * High level functions for whole image manipulation */ -static int get_page_geometry (char *, struct pagedef*); -static int computeInputPixelOffsets(struct crop_mask *, struct image_data *, - struct offset *); -static int computeOutputPixelOffsets (struct crop_mask *, struct image_data *, - struct pagedef *, struct pageseg *, - struct dump_opts *); -static int loadImage(TIFF *, struct image_data *, struct dump_opts *, unsigned char **); -static int correct_orientation(struct image_data *, unsigned char **); -static int getCropOffsets(struct image_data *, struct crop_mask *, struct dump_opts *); -static int processCropSelections(struct image_data *, struct crop_mask *, - unsigned char **, struct buffinfo []); -static int writeSelections(TIFF *, TIFF **, struct crop_mask *, struct image_data *, - struct dump_opts *, struct buffinfo [], - char *, char *, unsigned int*, unsigned int); - -/* Section functions */ -static int createImageSection(uint32, unsigned char **); -static int extractImageSection(struct image_data *, struct pageseg *, - unsigned char *, unsigned char *); -static int writeSingleSection(TIFF *, TIFF *, struct image_data *, - struct dump_opts *, uint32, uint32, - double, double, unsigned char *); -static int writeImageSections(TIFF *, TIFF *, struct image_data *, - struct pagedef *, struct pageseg *, - struct dump_opts *, unsigned char *, - unsigned char **); -/* Whole image functions */ -static int createCroppedImage(struct image_data *, struct crop_mask *, - unsigned char **, unsigned char **); -static int writeCroppedImage(TIFF *, TIFF *, struct image_data *image, - struct dump_opts * dump, - uint32, uint32, unsigned char *, int, int); - -/* Image manipulation functions */ -static int rotateContigSamples8bits(uint16, uint16, uint16, uint32, - uint32, uint32, uint8 *, uint8 *); -static int rotateContigSamples16bits(uint16, uint16, uint16, uint32, - uint32, uint32, uint8 *, uint8 *); -static int rotateContigSamples24bits(uint16, uint16, uint16, uint32, - uint32, uint32, uint8 *, uint8 *); -static int rotateContigSamples32bits(uint16, uint16, uint16, uint32, - uint32, uint32, uint8 *, uint8 *); -static int rotateImage(uint16, struct image_data *, uint32 *, uint32 *, - unsigned char **); -static int mirrorImage(uint16, uint16, uint16, uint32, uint32, - unsigned char *); -static int invertImage(uint16, uint16, uint16, uint32, uint32, - unsigned char *); - -/* Functions to reverse the sequence of samples in a scanline */ -static int reverseSamples8bits (uint16, uint16, uint32, uint8 *, uint8 *); -static int reverseSamples16bits (uint16, uint16, uint32, uint8 *, uint8 *); -static int reverseSamples24bits (uint16, uint16, uint32, uint8 *, uint8 *); -static int reverseSamples32bits (uint16, uint16, uint32, uint8 *, uint8 *); -static int reverseSamplesBytes (uint16, uint16, uint32, uint8 *, uint8 *); - -/* Functions for manipulating individual samples in an image */ -static int extractSeparateRegion(struct image_data *, struct crop_mask *, - unsigned char *, unsigned char *, int); -static int extractCompositeRegions(struct image_data *, struct crop_mask *, - unsigned char *, unsigned char *); -static int extractContigSamples8bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32); -static int extractContigSamples16bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32); -static int extractContigSamples24bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32); -static int extractContigSamples32bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32); -static int extractContigSamplesBytes (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32); -static int extractContigSamplesShifted8bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32, - int); -static int extractContigSamplesShifted16bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32, - int); -static int extractContigSamplesShifted24bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32, - int); -static int extractContigSamplesShifted32bits (uint8 *, uint8 *, uint32, - tsample_t, uint16, uint16, - tsample_t, uint32, uint32, - int); -static int extractContigSamplesToTileBuffer(uint8 *, uint8 *, uint32, uint32, - uint32, uint32, tsample_t, uint16, - uint16, uint16, struct dump_opts *); - -/* Functions to combine separate planes into interleaved planes */ -static int combineSeparateSamples8bits (uint8 *[], uint8 *, uint32, uint32, - uint16, uint16, FILE *, int, int); -static int combineSeparateSamples16bits (uint8 *[], uint8 *, uint32, uint32, - uint16, uint16, FILE *, int, int); -static int combineSeparateSamples24bits (uint8 *[], uint8 *, uint32, uint32, - uint16, uint16, FILE *, int, int); -static int combineSeparateSamples32bits (uint8 *[], uint8 *, uint32, uint32, - uint16, uint16, FILE *, int, int); -static int combineSeparateSamplesBytes (unsigned char *[], unsigned char *, - uint32, uint32, tsample_t, uint16, - FILE *, int, int); - -static int combineSeparateTileSamples8bits (uint8 *[], uint8 *, uint32, uint32, - uint32, uint32, uint16, uint16, - FILE *, int, int); -static int combineSeparateTileSamples16bits (uint8 *[], uint8 *, uint32, uint32, - uint32, uint32, uint16, uint16, - FILE *, int, int); -static int combineSeparateTileSamples24bits (uint8 *[], uint8 *, uint32, uint32, - uint32, uint32, uint16, uint16, - FILE *, int, int); -static int combineSeparateTileSamples32bits (uint8 *[], uint8 *, uint32, uint32, - uint32, uint32, uint16, uint16, - FILE *, int, int); -static int combineSeparateTileSamplesBytes (unsigned char *[], unsigned char *, - uint32, uint32, uint32, uint32, - tsample_t, uint16, FILE *, int, int); - -/* Dump functions for debugging */ -static void dump_info (FILE *, int, char *, char *, ...); -static int dump_data (FILE *, int, char *, unsigned char *, uint32); -static int dump_byte (FILE *, int, char *, unsigned char); -static int dump_short (FILE *, int, char *, uint16); -static int dump_long (FILE *, int, char *, uint32); -static int dump_wide (FILE *, int, char *, uint64); -static int dump_buffer (FILE *, int, uint32, uint32, uint32, unsigned char *); - -/* End function declarations */ -/* Functions derived in whole or in part from tiffcp */ -/* The following functions are taken largely intact from tiffcp */ - -static char* usage_info[] = { -"usage: tiffcrop [options] source1 ... sourceN destination", -"where options are:", -" -h Print this syntax listing", -" -v Print tiffcrop version identifier and last revision date", -" ", -" -a Append to output instead of overwriting", -" -d offset Set initial directory offset, counting first image as one, not zero", -" -p contig Pack samples contiguously (e.g. RGBRGB...)", -" -p separate Store samples separately (e.g. RRR...GGG...BBB...)", -" -s Write output in strips", -" -t Write output in tiles", -" -i Ignore read errors", -" ", -" -r # Make each strip have no more than # rows", -" -w # Set output tile width (pixels)", -" -l # Set output tile length (pixels)", -" ", -" -f lsb2msb Force lsb-to-msb FillOrder for output", -" -f msb2lsb Force msb-to-lsb FillOrder for output", -"", -" -c lzw[:opts] Compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] Compress output with deflate encoding", -" -c jpeg[:opts] Compress output with JPEG encoding", -" -c packbits Compress output with packbits encoding", -" -c g3[:opts] Compress output with CCITT Group 3 encoding", -" -c g4 Compress output with CCITT Group 4 encoding", -" -c none Use no compression algorithm on output", -" ", -"Group 3 options:", -" 1d Use default CCITT Group 3 1D-encoding", -" 2d Use optional CCITT Group 3 2D-encoding", -" fill Byte-align EOL codes", -"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs", -" ", -"JPEG options:", -" # Set compression quality level (0-100, default 100)", -" raw Output color image as raw YCbCr", -" rgb Output color image as RGB", -"For example, -c jpeg:rgb:50 to get JPEG-encoded RGB data with 50% comp. quality", -" ", -"LZW and deflate options:", -" # Set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -" ", -"Page and selection options:", -" -N odd|even|#,#-#,#|last sequences and ranges of images within file to process", -" The words odd or even may be used to specify all odd or even numbered images.", -" The word last may be used in place of a number in the sequence to indicate.", -" The final image in the file without knowing how many images there are.", -" Numbers are counted from one even though TIFF IFDs are counted from zero.", -" ", -" -E t|l|r|b edge to use as origin for width and length of crop region", -" -U units [in, cm, px ] inches, centimeters or pixels", -" ", -" -m #,#,#,# margins from edges for selection: top, left, bottom, right separated by commas", -" -X # horizontal dimension of region to extract expressed in current units", -" -Y # vertical dimension of region to extract expressed in current units", -" -Z #:#,#:# zones of the image designated as position X of Y,", -" eg 1:3 would be first of three equal portions measured from reference edge", -" -z x1,y1,x2,y2:...:xN,yN,xN+1,yN+1", -" regions of the image designated by upper left and lower right coordinates", -"", -"Export grouping options:", -" -e c|d|i|m|s export mode for images and selections from input images.", -" When exporting a composite image from multiple zones or regions", -" (combined and image modes), the selections must have equal sizes", -" for the axis perpendicular to the edge specified with -E.", -" c|combined All images and selections are written to a single file (default).", -" with multiple selections from one image combined into a single image.", -" d|divided All images and selections are written to a single file", -" with each selection from one image written to a new image.", -" i|image Each input image is written to a new file (numeric filename sequence)", -" with multiple selections from the image combined into one image.", -" m|multiple Each input image is written to a new file (numeric filename sequence)", -" with each selection from the image written to a new image.", -" s|separated Individual selections from each image are written to separate files.", -"", -"Output options:", -" -H # Set horizontal resolution of output images to #", -" -V # Set vertical resolution of output images to #", -" -J # Set horizontal margin of output page to # expressed in current units", -" when sectioning image into columns x rows using the -S cols:rows option", -" -K # Set verticalal margin of output page to # expressed in current units", -" when sectioning image into columns x rows using the -S cols:rows option", -" ", -" -O orient orientation for output image, portrait, landscape, auto", -" -P page page size for output image segments, eg letter, legal, tabloid, etc", -" use #.#x#.# to specify a custom page size in the currently defined units", -" where #.# represents the width and length", -" -S cols:rows Divide the image into equal sized segments using cols across and rows down.", -" ", -" -F hor|vert|both", -" flip (mirror) image or region horizontally, vertically, or both", -" -R # [90,180,or 270] degrees clockwise rotation of image or extracted region", -" -I [black|white|data|both]", -" invert color space, eg dark to light for bilevel and grayscale images", -" If argument is white or black, set the PHOTOMETRIC_INTERPRETATION ", -" tag to MinIsBlack or MinIsWhite without altering the image data", -" If the argument is data or both, the image data are modified:", -" both inverts the data and the PHOTOMETRIC_INTERPRETATION tag,", -" data inverts the data but not the PHOTOMETRIC_INTERPRETATION tag", -" ", -"-D opt1:value1,opt2:value2,opt3:value3:opt4:value4", -" Debug/dump program progress and/or data to non-TIFF files.", -" Options include the following and must be joined as a comma", -" separate list. The use of this option is generally limited to", -" program debugging and development of future options.", -" ", -" debug:N Display limited program progress indicators where larger N", -" increase the level of detail. Note: Tiffcrop may be compiled with", -" -DDEVELMODE to enable additional very low level debug reporting.", -"", -" Format:txt|raw Format any logged data as ASCII text or raw binary ", -" values. ASCII text dumps include strings of ones and zeroes", -" representing the binary values in the image data plus identifying headers.", -" ", -" level:N Specify the level of detail presented in the dump files.", -" This can vary from dumps of the entire input or output image data to dumps", -" of data processed by specific functions. Current range of levels is 1 to 3.", -" ", -" input:full-path-to-directory/input-dumpname", -" ", -" output:full-path-to-directory/output-dumpnaem", -" ", -" When dump files are being written, each image will be written to a separate", -" file with the name built by adding a numeric sequence value to the dumpname", -" and an extension of .txt for ASCII dumps or .bin for binary dumps.", -" ", -" The four debug/dump options are independent, though it makes little sense to", -" specify a dump file without specifying a detail level.", -" ", -NULL -}; - -/* This function could be modified to pass starting sample offset - * and number of samples as args to select fewer than spp - * from input image. These would then be passed to individual - * extractContigSampleXX routines. - */ -static int readContigTilesIntoBuffer (TIFF* in, uint8* buf, - uint32 imagelength, - uint32 imagewidth, - uint32 tw, uint32 tl, - tsample_t spp, uint16 bps) - { - int status = 1; - tsample_t sample = 0; - tsample_t count = spp; - uint32 row, col, trow; - uint32 nrow, ncol; - uint32 dst_rowsize, shift_width; - uint32 bytes_per_sample, bytes_per_pixel; - uint32 trailing_bits, prev_trailing_bits; - uint32 tile_rowsize = TIFFTileRowSize(in); - uint32 src_offset, dst_offset; - uint32 row_offset, col_offset; - uint8 *bufp = (uint8*) buf; - unsigned char *src = NULL; - unsigned char *dst = NULL; - tsize_t tbytes = 0, tile_buffsize = 0; - tsize_t tilesize = TIFFTileSize(in); - unsigned char *tilebuf = NULL; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - - if ((bps % 8) == 0) - shift_width = 0; - else - { - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - } - - tile_buffsize = tilesize; - - if (tilesize < (tsize_t)(tl * tile_rowsize)) - { -#ifdef DEBUG2 - TIFFError("readContigTilesIntoBuffer", - "Tilesize %lu is too small, using alternate calculation %u", - tilesize, tl * tile_rowsize); -#endif - tile_buffsize = tl * tile_rowsize; - } - - tilebuf = _TIFFmalloc(tile_buffsize); - if (tilebuf == 0) - return 0; - - dst_rowsize = ((imagewidth * bps * spp) + 7) / 8; - for (row = 0; row < imagelength; row += tl) - { - nrow = (row + tl > imagelength) ? imagelength - row : tl; - for (col = 0; col < imagewidth; col += tw) - { - tbytes = TIFFReadTile(in, tilebuf, col, row, 0, 0); - if (tbytes < tilesize && !ignore) - { - TIFFError(TIFFFileName(in), - "Error, can't read tile at row %lu col %lu, Read %lu bytes of %lu", - (unsigned long) col, (unsigned long) row, (unsigned long)tbytes, - (unsigned long)tilesize); - status = 0; - _TIFFfree(tilebuf); - return status; - } - - row_offset = row * dst_rowsize; - col_offset = ((col * bps * spp) + 7)/ 8; - bufp = buf + row_offset + col_offset; - - if (col + tw > imagewidth) - ncol = imagewidth - col; - else - ncol = tw; - - /* Each tile scanline will start on a byte boundary but it - * has to be merged into the scanline for the entire - * image buffer and the previous segment may not have - * ended on a byte boundary - */ - /* Optimization for common bit depths, all samples */ - if (((bps % 8) == 0) && (count == spp)) - { - for (trow = 0; trow < nrow; trow++) - { - src_offset = trow * tile_rowsize; - _TIFFmemcpy (bufp, tilebuf + src_offset, (ncol * spp * bps) / 8); - bufp += (imagewidth * bps * spp) / 8; - } - } - else - { - /* Bit depths not a multiple of 8 and/or extract fewer than spp samples */ - prev_trailing_bits = trailing_bits = 0; - trailing_bits = (ncol * bps * spp) % 8; - - /* for (trow = 0; tl < nrow; trow++) */ - for (trow = 0; trow < nrow; trow++) - { - src_offset = trow * tile_rowsize; - src = tilebuf + src_offset; - dst_offset = (row + trow) * dst_rowsize; - dst = buf + dst_offset + col_offset; - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, ncol, sample, - spp, bps, count, 0, ncol)) - { - TIFFError("readContigTilesIntoBuffer", - "Unable to extract row %d from tile %lu", - row, (unsigned long)TIFFCurrentTile(in)); - return 1; - } - break; - case 1: if (bps == 1) - { - if (extractContigSamplesShifted8bits (src, dst, ncol, - sample, spp, - bps, count, - 0, ncol, - prev_trailing_bits)) - { - TIFFError("readContigTilesIntoBuffer", - "Unable to extract row %d from tile %lu", - row, (unsigned long)TIFFCurrentTile(in)); - return 1; - } - break; - } - else - if (extractContigSamplesShifted16bits (src, dst, ncol, - sample, spp, - bps, count, - 0, ncol, - prev_trailing_bits)) - { - TIFFError("readContigTilesIntoBuffer", - "Unable to extract row %d from tile %lu", - row, (unsigned long)TIFFCurrentTile(in)); - return 1; - } - break; - case 2: if (extractContigSamplesShifted24bits (src, dst, ncol, - sample, spp, - bps, count, - 0, ncol, - prev_trailing_bits)) - { - TIFFError("readContigTilesIntoBuffer", - "Unable to extract row %d from tile %lu", - row, (unsigned long)TIFFCurrentTile(in)); - return 1; - } - break; - case 3: - case 4: - case 5: if (extractContigSamplesShifted32bits (src, dst, ncol, - sample, spp, - bps, count, - 0, ncol, - prev_trailing_bits)) - { - TIFFError("readContigTilesIntoBuffer", - "Unable to extract row %d from tile %lu", - row, (unsigned long)TIFFCurrentTile(in)); - return 1; - } - break; - default: TIFFError("readContigTilesIntoBuffer", "Unsupported bit depth %d", bps); - return 1; - } - } - prev_trailing_bits += trailing_bits; - if (prev_trailing_bits > 7) - prev_trailing_bits-= 8; - } - } - } - - _TIFFfree(tilebuf); - return status; - } - -static int readSeparateTilesIntoBuffer (TIFF* in, uint8 *obuf, - uint32 imagelength, uint32 imagewidth, - uint32 tw, uint32 tl, - uint16 spp, uint16 bps) - { - int i, status = 1, sample; - int shift_width, bytes_per_pixel; - uint16 bytes_per_sample; - uint32 row, col; /* Current row and col of image */ - uint32 nrow, ncol; /* Number of rows and cols in current tile */ - uint32 row_offset, col_offset; /* Output buffer offsets */ - tsize_t tbytes = 0, tilesize = TIFFTileSize(in); - tsample_t s; - uint8* bufp = (uint8*)obuf; - unsigned char *srcbuffs[MAX_SAMPLES]; - unsigned char *tbuff = NULL; - - bytes_per_sample = (bps + 7) / 8; - - for (sample = 0; (sample < spp) && (sample < MAX_SAMPLES); sample++) - { - srcbuffs[sample] = NULL; - tbuff = (unsigned char *)_TIFFmalloc(tilesize + 8); - if (!tbuff) - { - TIFFError ("readSeparateTilesIntoBuffer", - "Unable to allocate tile read buffer for sample %d", sample); - for (i = 0; i < sample; i++) - _TIFFfree (srcbuffs[i]); - return 0; - } - srcbuffs[sample] = tbuff; - } - /* Each tile contains only the data for a single plane - * arranged in scanlines of tw * bytes_per_sample bytes. - */ - for (row = 0; row < imagelength; row += tl) - { - nrow = (row + tl > imagelength) ? imagelength - row : tl; - for (col = 0; col < imagewidth; col += tw) - { - for (s = 0; s < spp; s++) - { /* Read each plane of a tile set into srcbuffs[s] */ - tbytes = TIFFReadTile(in, srcbuffs[s], col, row, 0, s); - if (tbytes < 0 && !ignore) - { - TIFFError(TIFFFileName(in), - "Error, can't read tile for row %lu col %lu, " - "sample %lu", - (unsigned long) col, (unsigned long) row, - (unsigned long) s); - status = 0; - for (sample = 0; (sample < spp) && (sample < MAX_SAMPLES); sample++) - { - tbuff = srcbuffs[sample]; - if (tbuff != NULL) - _TIFFfree(tbuff); - } - return status; - } - } - /* Tiles on the right edge may be padded out to tw - * which must be a multiple of 16. - * Ncol represents the visible (non padding) portion. - */ - if (col + tw > imagewidth) - ncol = imagewidth - col; - else - ncol = tw; - - row_offset = row * (((imagewidth * spp * bps) + 7) / 8); - col_offset = ((col * spp * bps) + 7) / 8; - bufp = obuf + row_offset + col_offset; - - if ((bps % 8) == 0) - { - if (combineSeparateTileSamplesBytes(srcbuffs, bufp, ncol, nrow, imagewidth, - tw, spp, bps, NULL, 0, 0)) - { - status = 0; - break; - } - } - else - { - bytes_per_pixel = ((bps * spp) + 7) / 8; - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - - switch (shift_width) - { - case 1: if (combineSeparateTileSamples8bits (srcbuffs, bufp, ncol, nrow, - imagewidth, tw, spp, bps, - NULL, 0, 0)) - { - status = 0; - break; - } - break; - case 2: if (combineSeparateTileSamples16bits (srcbuffs, bufp, ncol, nrow, - imagewidth, tw, spp, bps, - NULL, 0, 0)) - { - status = 0; - break; - } - break; - case 3: if (combineSeparateTileSamples24bits (srcbuffs, bufp, ncol, nrow, - imagewidth, tw, spp, bps, - NULL, 0, 0)) - { - status = 0; - break; - } - break; - case 4: - case 5: - case 6: - case 7: - case 8: if (combineSeparateTileSamples32bits (srcbuffs, bufp, ncol, nrow, - imagewidth, tw, spp, bps, - NULL, 0, 0)) - { - status = 0; - break; - } - break; - default: TIFFError ("readSeparateTilesIntoBuffer", "Unsupported bit depth: %d", bps); - status = 0; - break; - } - } - } - } - - for (sample = 0; (sample < spp) && (sample < MAX_SAMPLES); sample++) - { - tbuff = srcbuffs[sample]; - if (tbuff != NULL) - _TIFFfree(tbuff); - } - - return status; - } - -static int writeBufferToContigStrips(TIFF* out, uint8* buf, uint32 imagelength) - { - uint32 row, nrows, rowsperstrip; - tstrip_t strip = 0; - tsize_t stripsize; - - TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - for (row = 0; row < imagelength; row += rowsperstrip) - { - nrows = (row + rowsperstrip > imagelength) ? - imagelength - row : rowsperstrip; - stripsize = TIFFVStripSize(out, nrows); - if (TIFFWriteEncodedStrip(out, strip++, buf, stripsize) < 0) - { - TIFFError(TIFFFileName(out), "Error, can't write strip %u", strip - 1); - return 1; - } - buf += stripsize; - } - - return 0; - } - -/* Abandon plans to modify code so that plannar orientation separate images - * do not have all samples for each channel written before all samples - * for the next channel have been abandoned. - * Libtiff internals seem to depend on all data for a given sample - * being contiguous within a strip or tile when PLANAR_CONFIG is - * separate. All strips or tiles of a given plane are written - * before any strips or tiles of a different plane are stored. - */ -static int -writeBufferToSeparateStrips (TIFF* out, uint8* buf, - uint32 length, uint32 width, uint16 spp, - struct dump_opts *dump) - { - uint8 *src; - uint16 bps; - uint32 row, nrows, rowsize, rowsperstrip; - uint32 bytes_per_sample; - tsample_t s; - tstrip_t strip = 0; - tsize_t stripsize = TIFFStripSize(out); - tsize_t rowstripsize, scanlinesize = TIFFScanlineSize(out); - tsize_t total_bytes = 0; - tdata_t obuf; - - (void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - (void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps); - bytes_per_sample = (bps + 7) / 8; - rowsize = ((bps * spp * width) + 7) / 8; /* source has interleaved samples */ - rowstripsize = rowsperstrip * bytes_per_sample * (width + 1); - - obuf = _TIFFmalloc (rowstripsize); - if (obuf == NULL) - return 1; - - for (s = 0; s < spp; s++) - { - for (row = 0; row < length; row += rowsperstrip) - { - nrows = (row + rowsperstrip > length) ? length - row : rowsperstrip; - - stripsize = TIFFVStripSize(out, nrows); - src = buf + (row * rowsize); - total_bytes += stripsize; - memset (obuf, '\0', rowstripsize); - if (extractContigSamplesToBuffer(obuf, src, nrows, width, s, spp, bps, dump)) - { - _TIFFfree(obuf); - return 1; - } - if ((dump->outfile != NULL) && (dump->level == 1)) - { - dump_info(dump->outfile, dump->format,"", - "Sample %2d, Strip: %2d, bytes: %4d, Row %4d, bytes: %4d, Input offset: %6d", - s + 1, strip + 1, stripsize, row + 1, scanlinesize, src - buf); - dump_buffer(dump->outfile, dump->format, nrows, scanlinesize, row, obuf); - } - - if (TIFFWriteEncodedStrip(out, strip++, obuf, stripsize) < 0) - { - TIFFError(TIFFFileName(out), "Error, can't write strip %u", strip - 1); - _TIFFfree(obuf); - return 1; - } - } - } - - _TIFFfree(obuf); - return 0; -} - -/* Extract all planes from contiguous buffer into a single tile buffer - * to be written out as a tile. - */ -static int writeBufferToContigTiles (TIFF* out, uint8* buf, uint32 imagelength, - uint32 imagewidth, tsample_t spp, - struct dump_opts* dump) - { - uint16 bps; - uint32 tl, tw; - uint32 row, col, nrow, ncol; - uint32 src_rowsize, col_offset; - uint32 tile_rowsize = TIFFTileRowSize(out); - uint8* bufp = (uint8*) buf; - tsize_t tile_buffsize = 0; - tsize_t tilesize = TIFFTileSize(out); - unsigned char *tilebuf = NULL; - - if( !TIFFGetField(out, TIFFTAG_TILELENGTH, &tl) || - !TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw) || - !TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps) ) - return 1; - - tile_buffsize = tilesize; - if (tilesize < (tsize_t)(tl * tile_rowsize)) - { -#ifdef DEBUG2 - TIFFError("writeBufferToContigTiles", - "Tilesize %lu is too small, using alternate calculation %u", - tilesize, tl * tile_rowsize); -#endif - tile_buffsize = tl * tile_rowsize; - } - - tilebuf = _TIFFmalloc(tile_buffsize); - if (tilebuf == 0) - return 1; - - src_rowsize = ((imagewidth * spp * bps) + 7) / 8; - for (row = 0; row < imagelength; row += tl) - { - nrow = (row + tl > imagelength) ? imagelength - row : tl; - for (col = 0; col < imagewidth; col += tw) - { - /* Calculate visible portion of tile. */ - if (col + tw > imagewidth) - ncol = imagewidth - col; - else - ncol = tw; - - col_offset = (((col * bps * spp) + 7) / 8); - bufp = buf + (row * src_rowsize) + col_offset; - if (extractContigSamplesToTileBuffer(tilebuf, bufp, nrow, ncol, imagewidth, - tw, 0, spp, spp, bps, dump) > 0) - { - TIFFError("writeBufferToContigTiles", - "Unable to extract data to tile for row %lu, col %lu", - (unsigned long) row, (unsigned long)col); - _TIFFfree(tilebuf); - return 1; - } - - if (TIFFWriteTile(out, tilebuf, col, row, 0, 0) < 0) - { - TIFFError("writeBufferToContigTiles", - "Cannot write tile at %lu %lu", - (unsigned long) col, (unsigned long) row); - _TIFFfree(tilebuf); - return 1; - } - } - } - _TIFFfree(tilebuf); - - return 0; - } /* end writeBufferToContigTiles */ - -/* Extract each plane from contiguous buffer into a single tile buffer - * to be written out as a tile. - */ -static int writeBufferToSeparateTiles (TIFF* out, uint8* buf, uint32 imagelength, - uint32 imagewidth, tsample_t spp, - struct dump_opts * dump) - { - tdata_t obuf = _TIFFmalloc(TIFFTileSize(out)); - uint32 tl, tw; - uint32 row, col, nrow, ncol; - uint32 src_rowsize, col_offset; - uint16 bps; - tsample_t s; - uint8* bufp = (uint8*) buf; - - if (obuf == NULL) - return 1; - - TIFFGetField(out, TIFFTAG_TILELENGTH, &tl); - TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps); - src_rowsize = ((imagewidth * spp * bps) + 7) / 8; - - for (row = 0; row < imagelength; row += tl) - { - nrow = (row + tl > imagelength) ? imagelength - row : tl; - for (col = 0; col < imagewidth; col += tw) - { - /* Calculate visible portion of tile. */ - if (col + tw > imagewidth) - ncol = imagewidth - col; - else - ncol = tw; - - col_offset = (((col * bps * spp) + 7) / 8); - bufp = buf + (row * src_rowsize) + col_offset; - - for (s = 0; s < spp; s++) - { - if (extractContigSamplesToTileBuffer(obuf, bufp, nrow, ncol, imagewidth, - tw, s, 1, spp, bps, dump) > 0) - { - TIFFError("writeBufferToSeparateTiles", - "Unable to extract data to tile for row %lu, col %lu sample %d", - (unsigned long) row, (unsigned long)col, (int)s); - _TIFFfree(obuf); - return 1; - } - - if (TIFFWriteTile(out, obuf, col, row, 0, s) < 0) - { - TIFFError("writeBufferToseparateTiles", - "Cannot write tile at %lu %lu sample %lu", - (unsigned long) col, (unsigned long) row, - (unsigned long) s); - _TIFFfree(obuf); - return 1; - } - } - } - } - _TIFFfree(obuf); - - return 0; - } /* end writeBufferToSeparateTiles */ - -static void -processG3Options(char* cp) -{ - if( (cp = strchr(cp, ':')) ) { - if (defg3opts == (uint32) -1) - defg3opts = 0; - do { - cp++; - if (strneq(cp, "1d", 2)) - defg3opts &= ~GROUP3OPT_2DENCODING; - else if (strneq(cp, "2d", 2)) - defg3opts |= GROUP3OPT_2DENCODING; - else if (strneq(cp, "fill", 4)) - defg3opts |= GROUP3OPT_FILLBITS; - else - usage(); - } while( (cp = strchr(cp, ':')) ); - } -} - -static int -processCompressOptions(char* opt) - { - char* cp = NULL; - - if (strneq(opt, "none",4)) - { - defcompression = COMPRESSION_NONE; - } - else if (streq(opt, "packbits")) - { - defcompression = COMPRESSION_PACKBITS; - } - else if (strneq(opt, "jpeg", 4)) - { - cp = strchr(opt, ':'); - defcompression = COMPRESSION_JPEG; - - while (cp) - { - if (isdigit((int)cp[1])) - quality = atoi(cp + 1); - else if (strneq(cp + 1, "raw", 3 )) - jpegcolormode = JPEGCOLORMODE_RAW; - else if (strneq(cp + 1, "rgb", 3 )) - jpegcolormode = JPEGCOLORMODE_RGB; - else - usage(); - cp = strchr(cp + 1, ':'); - } - } - else if (strneq(opt, "g3", 2)) - { - processG3Options(opt); - defcompression = COMPRESSION_CCITTFAX3; - } - else if (streq(opt, "g4")) - { - defcompression = COMPRESSION_CCITTFAX4; - } - else if (strneq(opt, "lzw", 3)) - { - cp = strchr(opt, ':'); - if (cp) - defpredictor = atoi(cp+1); - defcompression = COMPRESSION_LZW; - } - else if (strneq(opt, "zip", 3)) - { - cp = strchr(opt, ':'); - if (cp) - defpredictor = atoi(cp+1); - defcompression = COMPRESSION_ADOBE_DEFLATE; - } - else - return (0); - - return (1); - } - -static void -usage(void) - { - int i; - - fprintf(stderr, "\n%s\n", TIFFGetVersion()); - for (i = 0; usage_info[i] != NULL; i++) - fprintf(stderr, "%s\n", usage_info[i]); - exit(-1); - } - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) -#define CopyField4(tag, v1, v2, v3, v4) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3, &v4)) TIFFSetField(out, tag, v1, v2, v3, v4) - -static void -cpTag(TIFF* in, TIFF* out, uint16 tag, uint16 count, TIFFDataType type) -{ - switch (type) { - case TIFF_SHORT: - if (count == 1) { - uint16 shortv; - CopyField(tag, shortv); - } else if (count == 2) { - uint16 shortv1, shortv2; - CopyField2(tag, shortv1, shortv2); - } else if (count == 4) { - uint16 *tr, *tg, *tb, *ta; - CopyField4(tag, tr, tg, tb, ta); - } else if (count == (uint16) -1) { - uint16 shortv1; - uint16* shortav; - CopyField2(tag, shortv1, shortav); - } - break; - case TIFF_LONG: - { uint32 longv; - CopyField(tag, longv); - } - break; - case TIFF_RATIONAL: - if (count == 1) { - float floatv; - CopyField(tag, floatv); - } else if (count == (uint16) -1) { - float* floatav; - CopyField(tag, floatav); - } - break; - case TIFF_ASCII: - { char* stringv; - CopyField(tag, stringv); - } - break; - case TIFF_DOUBLE: - if (count == 1) { - double doublev; - CopyField(tag, doublev); - } else if (count == (uint16) -1) { - double* doubleav; - CopyField(tag, doubleav); - } - break; - default: - TIFFError(TIFFFileName(in), - "Data type %d is not supported, tag %d skipped", - tag, type); - } -} - -static struct cpTag { - uint16 tag; - uint16 count; - TIFFDataType type; -} tags[] = { - { TIFFTAG_SUBFILETYPE, 1, TIFF_LONG }, - { TIFFTAG_THRESHHOLDING, 1, TIFF_SHORT }, - { TIFFTAG_DOCUMENTNAME, 1, TIFF_ASCII }, - { TIFFTAG_IMAGEDESCRIPTION, 1, TIFF_ASCII }, - { TIFFTAG_MAKE, 1, TIFF_ASCII }, - { TIFFTAG_MODEL, 1, TIFF_ASCII }, - { TIFFTAG_MINSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_MAXSAMPLEVALUE, 1, TIFF_SHORT }, - { TIFFTAG_XRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_YRESOLUTION, 1, TIFF_RATIONAL }, - { TIFFTAG_PAGENAME, 1, TIFF_ASCII }, - { TIFFTAG_XPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_YPOSITION, 1, TIFF_RATIONAL }, - { TIFFTAG_RESOLUTIONUNIT, 1, TIFF_SHORT }, - { TIFFTAG_SOFTWARE, 1, TIFF_ASCII }, - { TIFFTAG_DATETIME, 1, TIFF_ASCII }, - { TIFFTAG_ARTIST, 1, TIFF_ASCII }, - { TIFFTAG_HOSTCOMPUTER, 1, TIFF_ASCII }, - { TIFFTAG_WHITEPOINT, (uint16) -1, TIFF_RATIONAL }, - { TIFFTAG_PRIMARYCHROMATICITIES,(uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_HALFTONEHINTS, 2, TIFF_SHORT }, - { TIFFTAG_INKSET, 1, TIFF_SHORT }, - { TIFFTAG_DOTRANGE, 2, TIFF_SHORT }, - { TIFFTAG_TARGETPRINTER, 1, TIFF_ASCII }, - { TIFFTAG_SAMPLEFORMAT, 1, TIFF_SHORT }, - { TIFFTAG_YCBCRCOEFFICIENTS, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_YCBCRSUBSAMPLING, 2, TIFF_SHORT }, - { TIFFTAG_YCBCRPOSITIONING, 1, TIFF_SHORT }, - { TIFFTAG_REFERENCEBLACKWHITE, (uint16) -1,TIFF_RATIONAL }, - { TIFFTAG_EXTRASAMPLES, (uint16) -1, TIFF_SHORT }, - { TIFFTAG_SMINSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_SMAXSAMPLEVALUE, 1, TIFF_DOUBLE }, - { TIFFTAG_STONITS, 1, TIFF_DOUBLE }, -}; -#define NTAGS (sizeof (tags) / sizeof (tags[0])) - -#define CopyTag(tag, count, type) cpTag(in, out, tag, count, type) - -/* Functions written by Richard Nolde, with exceptions noted. */ -void process_command_opts (int argc, char *argv[], char *mp, char *mode, uint32 *dirnum, - uint16 *defconfig, uint16 *deffillorder, uint32 *deftilewidth, - uint32 *deftilelength, uint32 *defrowsperstrip, - struct crop_mask *crop_data, struct pagedef *page, - struct dump_opts *dump, - unsigned int *imagelist, unsigned int *image_count ) - { - int c, good_args = 0; - char *opt_offset = NULL; /* Position in string of value sought */ - char *opt_ptr = NULL; /* Pointer to next token in option set */ - char *sep = NULL; /* Pointer to a token separator */ - unsigned int i, j, start, end; - extern int optind; - extern char* optarg; - - *mp++ = 'w'; - *mp = '\0'; - while ((c = getopt(argc, argv, - "ac:d:e:f:hil:m:p:r:stvw:z:BCD:E:F:H:I:J:K:LMN:O:P:R:S:U:V:X:Y:Z:")) != -1) - { - good_args++; - switch (c) { - case 'a': mode[0] = 'a'; /* append to output */ - break; - case 'c': if (!processCompressOptions(optarg)) /* compression scheme */ - { - TIFFError ("Unknown compression option", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'd': start = strtoul(optarg, NULL, 0); /* initial IFD offset */ - if (start == 0) - { - TIFFError ("","Directory offset must be greater than zero"); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - *dirnum = start - 1; - break; - case 'e': switch (tolower(optarg[0])) /* image export modes*/ - { - case 'c': crop_data->exp_mode = ONE_FILE_COMPOSITE; - crop_data->img_mode = COMPOSITE_IMAGES; - break; /* Composite */ - case 'd': crop_data->exp_mode = ONE_FILE_SEPARATED; - crop_data->img_mode = SEPARATED_IMAGES; - break; /* Divided */ - case 'i': crop_data->exp_mode = FILE_PER_IMAGE_COMPOSITE; - crop_data->img_mode = COMPOSITE_IMAGES; - break; /* Image */ - case 'm': crop_data->exp_mode = FILE_PER_IMAGE_SEPARATED; - crop_data->img_mode = SEPARATED_IMAGES; - break; /* Multiple */ - case 's': crop_data->exp_mode = FILE_PER_SELECTION; - crop_data->img_mode = SEPARATED_IMAGES; - break; /* Sections */ - default: TIFFError ("Unknown export mode","%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'f': if (streq(optarg, "lsb2msb")) /* fill order */ - *deffillorder = FILLORDER_LSB2MSB; - else if (streq(optarg, "msb2lsb")) - *deffillorder = FILLORDER_MSB2LSB; - else - { - TIFFError ("Unknown fill order", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'h': usage(); - break; - case 'i': ignore = TRUE; /* ignore errors */ - break; - case 'l': outtiled = TRUE; /* tile length */ - *deftilelength = atoi(optarg); - break; - case 'p': /* planar configuration */ - if (streq(optarg, "separate")) - *defconfig = PLANARCONFIG_SEPARATE; - else if (streq(optarg, "contig")) - *defconfig = PLANARCONFIG_CONTIG; - else - { - TIFFError ("Unkown planar configuration", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'r': /* rows/strip */ - *defrowsperstrip = atol(optarg); - break; - case 's': /* generate stripped output */ - outtiled = FALSE; - break; - case 't': /* generate tiled output */ - outtiled = TRUE; - break; - case 'v': TIFFError("Library Release", "%s", TIFFGetVersion()); - TIFFError ("Tiffcrop version", "%s, last updated: %s", - tiffcrop_version_id, tiffcrop_rev_date); - TIFFError ("Tiffcp code", "Copyright (c) 1988-1997 Sam Leffler"); - TIFFError (" ", "Copyright (c) 1991-1997 Silicon Graphics, Inc"); - TIFFError ("Tiffcrop additions", "Copyright (c) 2007-2010 Richard Nolde"); - exit (0); - break; - case 'w': /* tile width */ - outtiled = TRUE; - *deftilewidth = atoi(optarg); - break; - case 'z': /* regions of an image specified as x1,y1,x2,y2:x3,y3,x4,y4 etc */ - crop_data->crop_mode |= CROP_REGIONS; - for (i = 0, opt_ptr = strtok (optarg, ":"); - ((opt_ptr != NULL) && (i < MAX_REGIONS)); - (opt_ptr = strtok (NULL, ":")), i++) - { - crop_data->regions++; - if (sscanf(opt_ptr, "%lf,%lf,%lf,%lf", - &crop_data->corners[i].X1, &crop_data->corners[i].Y1, - &crop_data->corners[i].X2, &crop_data->corners[i].Y2) != 4) - { - TIFFError ("Unable to parse coordinates for region", "%d %s", i, optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - } - /* check for remaining elements over MAX_REGIONS */ - if ((opt_ptr != NULL) && (i >= MAX_REGIONS)) - { - TIFFError ("Region list exceeds limit of", "%d regions %s", MAX_REGIONS, optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1);; - } - break; - /* options for file open modes */ - case 'B': *mp++ = 'b'; *mp = '\0'; - break; - case 'L': *mp++ = 'l'; *mp = '\0'; - break; - case 'M': *mp++ = 'm'; *mp = '\0'; - break; - case 'C': *mp++ = 'c'; *mp = '\0'; - break; - /* options for Debugging / data dump */ - case 'D': for (i = 0, opt_ptr = strtok (optarg, ","); - (opt_ptr != NULL); - (opt_ptr = strtok (NULL, ",")), i++) - { - opt_offset = strpbrk(opt_ptr, ":="); - if (opt_offset == NULL) - { - TIFFError("Invalid dump option", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - - *opt_offset = '\0'; - /* convert option to lowercase */ - end = strlen (opt_ptr); - for (i = 0; i < end; i++) - *(opt_ptr + i) = tolower(*(opt_ptr + i)); - /* Look for dump format specification */ - if (strncmp(opt_ptr, "for", 3) == 0) - { - /* convert value to lowercase */ - end = strlen (opt_offset + 1); - for (i = 1; i <= end; i++) - *(opt_offset + i) = tolower(*(opt_offset + i)); - /* check dump format value */ - if (strncmp (opt_offset + 1, "txt", 3) == 0) - { - dump->format = DUMP_TEXT; - strcpy (dump->mode, "w"); - } - else - { - if (strncmp(opt_offset + 1, "raw", 3) == 0) - { - dump->format = DUMP_RAW; - strcpy (dump->mode, "wb"); - } - else - { - TIFFError("parse_command_opts", "Unknown dump format %s", opt_offset + 1); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - } - } - else - { /* Look for dump level specification */ - if (strncmp (opt_ptr, "lev", 3) == 0) - dump->level = atoi(opt_offset + 1); - /* Look for input data dump file name */ - if (strncmp (opt_ptr, "in", 2) == 0) - { - strncpy (dump->infilename, opt_offset + 1, PATH_MAX - 20); - dump->infilename[PATH_MAX - 20] = '\0'; - } - /* Look for output data dump file name */ - if (strncmp (opt_ptr, "out", 3) == 0) - { - strncpy (dump->outfilename, opt_offset + 1, PATH_MAX - 20); - dump->outfilename[PATH_MAX - 20] = '\0'; - } - if (strncmp (opt_ptr, "deb", 3) == 0) - dump->debug = atoi(opt_offset + 1); - } - } - if ((strlen(dump->infilename)) || (strlen(dump->outfilename))) - { - if (dump->level == 1) - TIFFError("","Defaulting to dump level 1, no data."); - if (dump->format == DUMP_NONE) - { - TIFFError("", "You must specify a dump format for dump files"); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - } - break; - - /* image manipulation routine options */ - case 'm': /* margins to exclude from selection, uppercase M was already used */ - /* order of values must be TOP, LEFT, BOTTOM, RIGHT */ - crop_data->crop_mode |= CROP_MARGINS; - for (i = 0, opt_ptr = strtok (optarg, ",:"); - ((opt_ptr != NULL) && (i < 4)); - (opt_ptr = strtok (NULL, ",:")), i++) - { - crop_data->margins[i] = atof(opt_ptr); - } - break; - case 'E': /* edge reference */ - switch (tolower(optarg[0])) - { - case 't': crop_data->edge_ref = EDGE_TOP; - break; - case 'b': crop_data->edge_ref = EDGE_BOTTOM; - break; - case 'l': crop_data->edge_ref = EDGE_LEFT; - break; - case 'r': crop_data->edge_ref = EDGE_RIGHT; - break; - default: TIFFError ("Edge reference must be top, bottom, left, or right", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'F': /* flip eg mirror image or cropped segment, M was already used */ - crop_data->crop_mode |= CROP_MIRROR; - switch (tolower(optarg[0])) - { - case 'h': crop_data->mirror = MIRROR_HORIZ; - break; - case 'v': crop_data->mirror = MIRROR_VERT; - break; - case 'b': crop_data->mirror = MIRROR_BOTH; - break; - default: TIFFError ("Flip mode must be horiz, vert, or both", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'H': /* set horizontal resolution to new value */ - page->hres = atof (optarg); - page->mode |= PAGE_MODE_RESOLUTION; - break; - case 'I': /* invert the color space, eg black to white */ - crop_data->crop_mode |= CROP_INVERT; - /* The PHOTOMETIC_INTERPRETATION tag may be updated */ - if (streq(optarg, "black")) - { - crop_data->photometric = PHOTOMETRIC_MINISBLACK; - continue; - } - if (streq(optarg, "white")) - { - crop_data->photometric = PHOTOMETRIC_MINISWHITE; - continue; - } - if (streq(optarg, "data")) - { - crop_data->photometric = INVERT_DATA_ONLY; - continue; - } - if (streq(optarg, "both")) - { - crop_data->photometric = INVERT_DATA_AND_TAG; - continue; - } - - TIFFError("Missing or unknown option for inverting PHOTOMETRIC_INTERPRETATION", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - break; - case 'J': /* horizontal margin for sectioned ouput pages */ - page->hmargin = atof(optarg); - page->mode |= PAGE_MODE_MARGINS; - break; - case 'K': /* vertical margin for sectioned ouput pages*/ - page->vmargin = atof(optarg); - page->mode |= PAGE_MODE_MARGINS; - break; - case 'N': /* list of images to process */ - for (i = 0, opt_ptr = strtok (optarg, ","); - ((opt_ptr != NULL) && (i < MAX_IMAGES)); - (opt_ptr = strtok (NULL, ","))) - { /* We do not know how many images are in file yet - * so we build a list to include the maximum allowed - * and follow it until we hit the end of the file. - * Image count is not accurate for odd, even, last - * so page numbers won't be valid either. - */ - if (streq(opt_ptr, "odd")) - { - for (j = 1; j <= MAX_IMAGES; j += 2) - imagelist[i++] = j; - *image_count = (MAX_IMAGES - 1) / 2; - break; - } - else - { - if (streq(opt_ptr, "even")) - { - for (j = 2; j <= MAX_IMAGES; j += 2) - imagelist[i++] = j; - *image_count = MAX_IMAGES / 2; - break; - } - else - { - if (streq(opt_ptr, "last")) - imagelist[i++] = MAX_IMAGES; - else /* single value between commas */ - { - sep = strpbrk(opt_ptr, ":-"); - if (!sep) - imagelist[i++] = atoi(opt_ptr); - else - { - *sep = '\0'; - start = atoi (opt_ptr); - if (!strcmp((sep + 1), "last")) - end = MAX_IMAGES; - else - end = atoi (sep + 1); - for (j = start; j <= end && j - start + i < MAX_IMAGES; j++) - imagelist[i++] = j; - } - } - } - } - } - *image_count = i; - break; - case 'O': /* page orientation */ - switch (tolower(optarg[0])) - { - case 'a': page->orient = ORIENTATION_AUTO; - break; - case 'p': page->orient = ORIENTATION_PORTRAIT; - break; - case 'l': page->orient = ORIENTATION_LANDSCAPE; - break; - default: TIFFError ("Orientation must be portrait, landscape, or auto.", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'P': /* page size selection */ - if (sscanf(optarg, "%lfx%lf", &page->width, &page->length) == 2) - { - strcpy (page->name, "Custom"); - page->mode |= PAGE_MODE_PAPERSIZE; - break; - } - if (get_page_geometry (optarg, page)) - { - if (!strcmp(optarg, "list")) - { - TIFFError("", "Name Width Length (in inches)"); - for (i = 0; i < MAX_PAPERNAMES - 1; i++) - TIFFError ("", "%-15.15s %5.2f %5.2f", - PaperTable[i].name, PaperTable[i].width, - PaperTable[i].length); - exit (-1); - } - - TIFFError ("Invalid paper size", "%s", optarg); - TIFFError ("", "Select one of:"); - TIFFError("", "Name Width Length (in inches)"); - for (i = 0; i < MAX_PAPERNAMES - 1; i++) - TIFFError ("", "%-15.15s %5.2f %5.2f", - PaperTable[i].name, PaperTable[i].width, - PaperTable[i].length); - exit (-1); - } - else - { - page->mode |= PAGE_MODE_PAPERSIZE; - } - break; - case 'R': /* rotate image or cropped segment */ - crop_data->crop_mode |= CROP_ROTATE; - switch (strtoul(optarg, NULL, 0)) - { - case 90: crop_data->rotation = (uint16)90; - break; - case 180: crop_data->rotation = (uint16)180; - break; - case 270: crop_data->rotation = (uint16)270; - break; - default: TIFFError ("Rotation must be 90, 180, or 270 degrees clockwise", "%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'S': /* subdivide into Cols:Rows sections, eg 3:2 would be 3 across and 2 down */ - sep = strpbrk(optarg, ",:"); - if (sep) - { - *sep = '\0'; - page->cols = atoi(optarg); - page->rows = atoi(sep +1); - } - else - { - page->cols = atoi(optarg); - page->rows = atoi(optarg); - } - if ((page->cols * page->rows) > MAX_SECTIONS) - { - TIFFError ("Limit for subdivisions, ie rows x columns, exceeded", "%d", MAX_SECTIONS); - exit (-1); - } - page->mode |= PAGE_MODE_ROWSCOLS; - break; - case 'U': /* units for measurements and offsets */ - if (streq(optarg, "in")) - { - crop_data->res_unit = RESUNIT_INCH; - page->res_unit = RESUNIT_INCH; - } - else if (streq(optarg, "cm")) - { - crop_data->res_unit = RESUNIT_CENTIMETER; - page->res_unit = RESUNIT_CENTIMETER; - } - else if (streq(optarg, "px")) - { - crop_data->res_unit = RESUNIT_NONE; - page->res_unit = RESUNIT_NONE; - } - else - { - TIFFError ("Illegal unit of measure","%s", optarg); - TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - } - break; - case 'V': /* set vertical resolution to new value */ - page->vres = atof (optarg); - page->mode |= PAGE_MODE_RESOLUTION; - break; - case 'X': /* selection width */ - crop_data->crop_mode |= CROP_WIDTH; - crop_data->width = atof(optarg); - break; - case 'Y': /* selection length */ - crop_data->crop_mode |= CROP_LENGTH; - crop_data->length = atof(optarg); - break; - case 'Z': /* zones of an image X:Y read as zone X of Y */ - crop_data->crop_mode |= CROP_ZONES; - for (i = 0, opt_ptr = strtok (optarg, ","); - ((opt_ptr != NULL) && (i < MAX_REGIONS)); - (opt_ptr = strtok (NULL, ",")), i++) - { - crop_data->zones++; - opt_offset = strchr(opt_ptr, ':'); - if (!opt_offset) { - TIFFError("Wrong parameter syntax for -Z", "tiffcrop -h"); - exit(-1); - } - *opt_offset = '\0'; - crop_data->zonelist[i].position = atoi(opt_ptr); - crop_data->zonelist[i].total = atoi(opt_offset + 1); - } - /* check for remaining elements over MAX_REGIONS */ - if ((opt_ptr != NULL) && (i >= MAX_REGIONS)) - { - TIFFError("Zone list exceeds region limit", "%d", MAX_REGIONS); - exit (-1); - } - break; - case '?': TIFFError ("For valid options type", "tiffcrop -h"); - exit (-1); - /*NOTREACHED*/ - } - } - } /* end process_command_opts */ - -/* Start a new output file if one has not been previously opened or - * autoindex is set to non-zero. Update page and file counters - * so TIFFTAG PAGENUM will be correct in image. - */ -static int -update_output_file (TIFF **tiffout, char *mode, int autoindex, - char *outname, unsigned int *page) - { - static int findex = 0; /* file sequence indicator */ - char *sep; - char filenum[16]; - char export_ext[16]; - char exportname[PATH_MAX]; - - if (autoindex && (*tiffout != NULL)) - { - /* Close any export file that was previously opened */ - TIFFClose (*tiffout); - *tiffout = NULL; - } - - strcpy (export_ext, ".tiff"); - memset (exportname, '\0', PATH_MAX); - - /* Leave room for page number portion of the new filename */ - strncpy (exportname, outname, PATH_MAX - 16); - if (*tiffout == NULL) /* This is a new export file */ - { - if (autoindex) - { /* create a new filename for each export */ - findex++; - if ((sep = strstr(exportname, ".tif")) || (sep = strstr(exportname, ".TIF"))) - { - strncpy (export_ext, sep, 5); - *sep = '\0'; - } - else - strncpy (export_ext, ".tiff", 5); - export_ext[5] = '\0'; - - /* MAX_EXPORT_PAGES limited to 6 digits to prevent string overflow of pathname */ - if (findex > MAX_EXPORT_PAGES) - { - TIFFError("update_output_file", "Maximum of %d pages per file exceeded", MAX_EXPORT_PAGES); - return 1; - } - - snprintf(filenum, sizeof(filenum), "-%03d%s", findex, export_ext); - filenum[14] = '\0'; - strncat (exportname, filenum, 15); - } - exportname[PATH_MAX - 1] = '\0'; - - *tiffout = TIFFOpen(exportname, mode); - if (*tiffout == NULL) - { - TIFFError("update_output_file", "Unable to open output file %s", exportname); - return 1; - } - *page = 0; - - return 0; - } - else - (*page)++; - - return 0; - } /* end update_output_file */ - - -int -main(int argc, char* argv[]) - { - extern int optind; - uint16 defconfig = (uint16) -1; - uint16 deffillorder = 0; - uint32 deftilewidth = (uint32) 0; - uint32 deftilelength = (uint32) 0; - uint32 defrowsperstrip = (uint32) 0; - uint32 dirnum = 0; - - TIFF *in = NULL; - TIFF *out = NULL; - char mode[10]; - char *mp = mode; - - /** RJN additions **/ - struct image_data image; /* Image parameters for one image */ - struct crop_mask crop; /* Cropping parameters for all images */ - struct pagedef page; /* Page definition for output pages */ - struct pageseg sections[MAX_SECTIONS]; /* Sections of one output page */ - struct buffinfo seg_buffs[MAX_SECTIONS]; /* Segment buffer sizes and pointers */ - struct dump_opts dump; /* Data dump options */ - unsigned char *read_buff = NULL; /* Input image data buffer */ - unsigned char *crop_buff = NULL; /* Crop area buffer */ - unsigned char *sect_buff = NULL; /* Image section buffer */ - unsigned char *sect_src = NULL; /* Image section buffer pointer */ - unsigned int imagelist[MAX_IMAGES + 1]; /* individually specified images */ - unsigned int image_count = 0; - unsigned int dump_images = 0; - unsigned int next_image = 0; - unsigned int next_page = 0; - unsigned int total_pages = 0; - unsigned int total_images = 0; - unsigned int end_of_input = FALSE; - int seg, length; - char temp_filename[PATH_MAX + 1]; - - little_endian = *((unsigned char *)&little_endian) & '1'; - - initImageData(&image); - initCropMasks(&crop); - initPageSetup(&page, sections, seg_buffs); - initDumpOptions(&dump); - - process_command_opts (argc, argv, mp, mode, &dirnum, &defconfig, - &deffillorder, &deftilewidth, &deftilelength, &defrowsperstrip, - &crop, &page, &dump, imagelist, &image_count); - - if (argc - optind < 2) - usage(); - - if ((argc - optind) == 2) - pageNum = -1; - else - total_images = 0; - /* read multiple input files and write to output file(s) */ - while (optind < argc - 1) - { - in = TIFFOpen (argv[optind], "r"); - if (in == NULL) - return (-3); - - /* If only one input file is specified, we can use directory count */ - total_images = TIFFNumberOfDirectories(in); - if (image_count == 0) - { - dirnum = 0; - total_pages = total_images; /* Only valid with single input file */ - } - else - { - dirnum = (tdir_t)(imagelist[next_image] - 1); - next_image++; - - /* Total pages only valid for enumerated list of pages not derived - * using odd, even, or last keywords. - */ - if (image_count > total_images) - image_count = total_images; - - total_pages = image_count; - } - - /* MAX_IMAGES is used for special case "last" in selection list */ - if (dirnum == (MAX_IMAGES - 1)) - dirnum = total_images - 1; - - if (dirnum > (total_images)) - { - TIFFError (TIFFFileName(in), - "Invalid image number %d, File contains only %d images", - (int)dirnum + 1, total_images); - if (out != NULL) - (void) TIFFClose(out); - return (1); - } - - if (dirnum != 0 && !TIFFSetDirectory(in, (tdir_t)dirnum)) - { - TIFFError(TIFFFileName(in),"Error, setting subdirectory at %d", dirnum); - if (out != NULL) - (void) TIFFClose(out); - return (1); - } - - end_of_input = FALSE; - while (end_of_input == FALSE) - { - config = defconfig; - compression = defcompression; - predictor = defpredictor; - fillorder = deffillorder; - rowsperstrip = defrowsperstrip; - tilewidth = deftilewidth; - tilelength = deftilelength; - g3opts = defg3opts; - - if (dump.format != DUMP_NONE) - { - /* manage input and/or output dump files here */ - dump_images++; - length = strlen(dump.infilename); - if (length > 0) - { - if (dump.infile != NULL) - fclose (dump.infile); - - /* dump.infilename is guaranteed to be NUL termimated and have 20 bytes - fewer than PATH_MAX */ - snprintf(temp_filename, sizeof(temp_filename), "%s-read-%03d.%s", - dump.infilename, dump_images, - (dump.format == DUMP_TEXT) ? "txt" : "raw"); - if ((dump.infile = fopen(temp_filename, dump.mode)) == NULL) - { - TIFFError ("Unable to open dump file for writing", "%s", temp_filename); - exit (-1); - } - dump_info(dump.infile, dump.format, "Reading image","%d from %s", - dump_images, TIFFFileName(in)); - } - length = strlen(dump.outfilename); - if (length > 0) - { - if (dump.outfile != NULL) - fclose (dump.outfile); - - /* dump.outfilename is guaranteed to be NUL termimated and have 20 bytes - fewer than PATH_MAX */ - snprintf(temp_filename, sizeof(temp_filename), "%s-write-%03d.%s", - dump.outfilename, dump_images, - (dump.format == DUMP_TEXT) ? "txt" : "raw"); - if ((dump.outfile = fopen(temp_filename, dump.mode)) == NULL) - { - TIFFError ("Unable to open dump file for writing", "%s", temp_filename); - exit (-1); - } - dump_info(dump.outfile, dump.format, "Writing image","%d from %s", - dump_images, TIFFFileName(in)); - } - } - - if (dump.debug) - TIFFError("main", "Reading image %4d of %4d total pages.", dirnum + 1, total_pages); - - if (loadImage(in, &image, &dump, &read_buff)) - { - TIFFError("main", "Unable to load source image"); - exit (-1); - } - - /* Correct the image orientation if it was not ORIENTATION_TOPLEFT. - */ - if (image.adjustments != 0) - { - if (correct_orientation(&image, &read_buff)) - TIFFError("main", "Unable to correct image orientation"); - } - - if (getCropOffsets(&image, &crop, &dump)) - { - TIFFError("main", "Unable to define crop regions"); - exit (-1); - } - - if (crop.selections > 0) - { - if (processCropSelections(&image, &crop, &read_buff, seg_buffs)) - { - TIFFError("main", "Unable to process image selections"); - exit (-1); - } - } - else /* Single image segment without zones or regions */ - { - if (createCroppedImage(&image, &crop, &read_buff, &crop_buff)) - { - TIFFError("main", "Unable to create output image"); - exit (-1); - } - } - if (page.mode == PAGE_MODE_NONE) - { /* Whole image or sections not based on output page size */ - if (crop.selections > 0) - { - writeSelections(in, &out, &crop, &image, &dump, seg_buffs, - mp, argv[argc - 1], &next_page, total_pages); - } - else /* One file all images and sections */ - { - if (update_output_file (&out, mp, crop.exp_mode, argv[argc - 1], - &next_page)) - exit (1); - if (writeCroppedImage(in, out, &image, &dump,crop.combined_width, - crop.combined_length, crop_buff, next_page, total_pages)) - { - TIFFError("main", "Unable to write new image"); - exit (-1); - } - } - } - else - { - /* If we used a crop buffer, our data is there, otherwise it is - * in the read_buffer - */ - if (crop_buff != NULL) - sect_src = crop_buff; - else - sect_src = read_buff; - /* Break input image into pages or rows and columns */ - if (computeOutputPixelOffsets(&crop, &image, &page, sections, &dump)) - { - TIFFError("main", "Unable to compute output section data"); - exit (-1); - } - /* If there are multiple files on the command line, the final one is assumed - * to be the output filename into which the images are written. - */ - if (update_output_file (&out, mp, crop.exp_mode, argv[argc - 1], &next_page)) - exit (1); - - if (writeImageSections(in, out, &image, &page, sections, &dump, sect_src, §_buff)) - { - TIFFError("main", "Unable to write image sections"); - exit (-1); - } - } - - /* No image list specified, just read the next image */ - if (image_count == 0) - dirnum++; - else - { - dirnum = (tdir_t)(imagelist[next_image] - 1); - next_image++; - } - - if (dirnum == MAX_IMAGES - 1) - dirnum = TIFFNumberOfDirectories(in) - 1; - - if (!TIFFSetDirectory(in, (tdir_t)dirnum)) - end_of_input = TRUE; - } - TIFFClose(in); - optind++; - } - - /* If we did not use the read buffer as the crop buffer */ - if (read_buff) - _TIFFfree(read_buff); - - if (crop_buff) - _TIFFfree(crop_buff); - - if (sect_buff) - _TIFFfree(sect_buff); - - /* Clean up any segment buffers used for zones or regions */ - for (seg = 0; seg < crop.selections; seg++) - _TIFFfree (seg_buffs[seg].buffer); - - if (dump.format != DUMP_NONE) - { - if (dump.infile != NULL) - fclose (dump.infile); - - if (dump.outfile != NULL) - { - dump_info (dump.outfile, dump.format, "", "Completed run for %s", TIFFFileName(out)); - fclose (dump.outfile); - } - } - - TIFFClose(out); - - return (0); - } /* end main */ - - -/* Debugging functions */ -static int dump_data (FILE *dumpfile, int format, char *dump_tag, unsigned char *data, uint32 count) - { - int j, k; - uint32 i; - char dump_array[10]; - unsigned char bitset; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - if (format == DUMP_TEXT) - { - fprintf (dumpfile," %s ", dump_tag); - for (i = 0; i < count; i++) - { - for (j = 0, k = 7; j < 8; j++, k--) - { - bitset = (*(data + i)) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&dump_array[j], (bitset) ? "1" : "0"); - } - dump_array[8] = '\0'; - fprintf (dumpfile," %s", dump_array); - } - fprintf (dumpfile,"\n"); - } - else - { - if ((fwrite (data, 1, count, dumpfile)) != count) - { - TIFFError ("", "Unable to write binary data to dump file"); - return (1); - } - } - - return (0); - } - -static int dump_byte (FILE *dumpfile, int format, char *dump_tag, unsigned char data) - { - int j, k; - char dump_array[10]; - unsigned char bitset; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - if (format == DUMP_TEXT) - { - fprintf (dumpfile," %s ", dump_tag); - for (j = 0, k = 7; j < 8; j++, k--) - { - bitset = data & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&dump_array[j], (bitset) ? "1" : "0"); - } - dump_array[8] = '\0'; - fprintf (dumpfile," %s\n", dump_array); - } - else - { - if ((fwrite (&data, 1, 1, dumpfile)) != 1) - { - TIFFError ("", "Unable to write binary data to dump file"); - return (1); - } - } - - return (0); - } - -static int dump_short (FILE *dumpfile, int format, char *dump_tag, uint16 data) - { - int j, k; - char dump_array[20]; - unsigned char bitset; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - if (format == DUMP_TEXT) - { - fprintf (dumpfile," %s ", dump_tag); - for (j = 0, k = 15; k >= 0; j++, k--) - { - bitset = data & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&dump_array[j], (bitset) ? "1" : "0"); - if ((k % 8) == 0) - sprintf(&dump_array[++j], " "); - } - dump_array[17] = '\0'; - fprintf (dumpfile," %s\n", dump_array); - } - else - { - if ((fwrite (&data, 2, 1, dumpfile)) != 2) - { - TIFFError ("", "Unable to write binary data to dump file"); - return (1); - } - } - - return (0); - } - -static int dump_long (FILE *dumpfile, int format, char *dump_tag, uint32 data) - { - int j, k; - char dump_array[40]; - unsigned char bitset; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - if (format == DUMP_TEXT) - { - fprintf (dumpfile," %s ", dump_tag); - for (j = 0, k = 31; k >= 0; j++, k--) - { - bitset = data & (((uint32)1 << k)) ? 1 : 0; - sprintf(&dump_array[j], (bitset) ? "1" : "0"); - if ((k % 8) == 0) - sprintf(&dump_array[++j], " "); - } - dump_array[35] = '\0'; - fprintf (dumpfile," %s\n", dump_array); - } - else - { - if ((fwrite (&data, 4, 1, dumpfile)) != 4) - { - TIFFError ("", "Unable to write binary data to dump file"); - return (1); - } - } - return (0); - } - -static int dump_wide (FILE *dumpfile, int format, char *dump_tag, uint64 data) - { - int j, k; - char dump_array[80]; - unsigned char bitset; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - if (format == DUMP_TEXT) - { - fprintf (dumpfile," %s ", dump_tag); - for (j = 0, k = 63; k >= 0; j++, k--) - { - bitset = data & (((uint64)1 << k)) ? 1 : 0; - sprintf(&dump_array[j], (bitset) ? "1" : "0"); - if ((k % 8) == 0) - sprintf(&dump_array[++j], " "); - } - dump_array[71] = '\0'; - fprintf (dumpfile," %s\n", dump_array); - } - else - { - if ((fwrite (&data, 8, 1, dumpfile)) != 8) - { - TIFFError ("", "Unable to write binary data to dump file"); - return (1); - } - } - - return (0); - } - -static void dump_info(FILE *dumpfile, int format, char *prefix, char *msg, ...) - { - if (format == DUMP_TEXT) - { - va_list ap; - va_start(ap, msg); - fprintf(dumpfile, "%s ", prefix); - vfprintf(dumpfile, msg, ap); - fprintf(dumpfile, "\n"); - va_end(ap); - } - } - -static int dump_buffer (FILE* dumpfile, int format, uint32 rows, uint32 width, - uint32 row, unsigned char *buff) - { - int j, k; - uint32 i; - unsigned char * dump_ptr; - - if (dumpfile == NULL) - { - TIFFError ("", "Invalid FILE pointer for dump file"); - return (1); - } - - for (i = 0; i < rows; i++) - { - dump_ptr = buff + (i * width); - if (format == DUMP_TEXT) - dump_info (dumpfile, format, "", - "Row %4d, %d bytes at offset %d", - row + i + 1, width, row * width); - - for (j = 0, k = width; k >= 10; j += 10, k -= 10, dump_ptr += 10) - dump_data (dumpfile, format, "", dump_ptr, 10); - if (k > 0) - dump_data (dumpfile, format, "", dump_ptr, k); - } - return (0); - } - -/* Extract one or more samples from an interleaved buffer. If count == 1, - * only the sample plane indicated by sample will be extracted. If count > 1, - * count samples beginning at sample will be extracted. Portions of a - * scanline can be extracted by specifying a start and end value. - */ - -static int -extractContigSamplesBytes (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end) - { - int i, bytes_per_sample, sindex; - uint32 col, dst_rowsize, bit_offset; - uint32 src_byte /*, src_bit */; - uint8 *src = in; - uint8 *dst = out; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("extractContigSamplesBytes","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamplesBytes", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamplesBytes", - "Invalid end column value %d ignored", end); - end = cols; - } - - dst_rowsize = (bps * (end - start) * count) / 8; - - bytes_per_sample = (bps + 7) / 8; - /* Optimize case for copying all samples */ - if (count == spp) - { - src = in + (start * spp * bytes_per_sample); - _TIFFmemcpy (dst, src, dst_rowsize); - } - else - { - for (col = start; col < end; col++) - { - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - bit_offset = col * bps * spp; - if (sindex == 0) - { - src_byte = bit_offset / 8; - /* src_bit = bit_offset % 8; */ - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - /* src_bit = (bit_offset + (sindex * bps)) % 8; */ - } - src = in + src_byte; - for (i = 0; i < bytes_per_sample; i++) - *dst++ = *src++; - } - } - } - - return (0); - } /* end extractContigSamplesBytes */ - -static int -extractContigSamples8bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint8 maskbits = 0, matchbits = 0; - uint8 buff1 = 0, buff2 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("extractContigSamples8bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamples8bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamples8bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = 0; - maskbits = (uint8)-1 >> ( 8 - bps); - buff1 = buff2 = 0; - for (col = start; col < end; col++) - { /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (8 - src_bit - bps); - buff1 = ((*src) & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - *dst++ = buff2; - buff2 = buff1; - ready_bits -= 8; - } - else - buff2 = (buff2 | (buff1 >> ready_bits)); - ready_bits += bps; - } - } - - while (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamples8bits */ - -static int -extractContigSamples16bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint16 maskbits = 0, matchbits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("extractContigSamples16bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamples16bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamples16bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = 0; - maskbits = (uint16)-1 >> (16 - bps); - - for (col = start; col < end; col++) - { /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (16 - src_bit - bps); - - if (little_endian) - buff1 = (src[0] << 8) | src[1]; - else - buff1 = (src[1] << 8) | src[0]; - - buff1 = (buff1 & matchbits) << (src_bit); - if (ready_bits < 8) /* add another bps bits to the buffer */ - { - bytebuff = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamples16bits */ - - -static int -extractContigSamples24bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint32 maskbits = 0, matchbits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((in == NULL) || (out == NULL)) - { - TIFFError("extractContigSamples24bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamples24bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamples24bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = 0; - maskbits = (uint32)-1 >> ( 32 - bps); - for (col = start; col < end; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (32 - src_bit - bps); - if (little_endian) - buff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - else - buff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - buff1 = (buff1 & matchbits) << (src_bit); - - if (ready_bits < 16) /* add another bps bits to the buffer */ - { - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamples24bits */ - -static int -extractContigSamples32bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end) - { - int ready_bits = 0, sindex = 0 /*, shift_width = 0 */; - uint32 col, src_byte, src_bit, bit_offset; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 maskbits = 0, matchbits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((in == NULL) || (out == NULL)) - { - TIFFError("extractContigSamples32bits","Invalid input or output buffer"); - return (1); - } - - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamples32bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamples32bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - /* shift_width = ((bps + 7) / 8) + 1; */ - ready_bits = 0; - maskbits = (uint64)-1 >> ( 64 - bps); - for (col = start; col < end; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (64 - src_bit - bps); - if (little_endian) - { - longbuff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - longbuff2 = longbuff1; - } - - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - buff1 = (buff3 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 32) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamples32bits */ - -static int -extractContigSamplesShifted8bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end, - int shift) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint8 maskbits = 0, matchbits = 0; - uint8 buff1 = 0, buff2 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("extractContigSamplesShifted8bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamplesShifted8bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamplesShifted8bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = shift; - maskbits = (uint8)-1 >> ( 8 - bps); - buff1 = buff2 = 0; - for (col = start; col < end; col++) - { /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (8 - src_bit - bps); - buff1 = ((*src) & matchbits) << (src_bit); - if ((col == start) && (sindex == sample)) - buff2 = *src & ((uint8)-1) << (shift); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - *dst++ |= buff2; - buff2 = buff1; - ready_bits -= 8; - } - else - buff2 = buff2 | (buff1 >> ready_bits); - ready_bits += bps; - } - } - - while (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamplesShifted8bits */ - -static int -extractContigSamplesShifted16bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end, - int shift) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint16 maskbits = 0, matchbits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("extractContigSamplesShifted16bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamplesShifted16bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamplesShifted16bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = shift; - maskbits = (uint16)-1 >> (16 - bps); - for (col = start; col < end; col++) - { /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (16 - src_bit - bps); - if (little_endian) - buff1 = (src[0] << 8) | src[1]; - else - buff1 = (src[1] << 8) | src[0]; - - if ((col == start) && (sindex == sample)) - buff2 = buff1 & ((uint16)-1) << (8 - shift); - - buff1 = (buff1 & matchbits) << (src_bit); - - if (ready_bits < 8) /* add another bps bits to the buffer */ - buff2 = buff2 | (buff1 >> ready_bits); - else /* If we have a full buffer's worth, write it out */ - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - } - - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamplesShifted16bits */ - - -static int -extractContigSamplesShifted24bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end, - int shift) - { - int ready_bits = 0, sindex = 0; - uint32 col, src_byte, src_bit, bit_offset; - uint32 maskbits = 0, matchbits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((in == NULL) || (out == NULL)) - { - TIFFError("extractContigSamplesShifted24bits","Invalid input or output buffer"); - return (1); - } - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamplesShifted24bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamplesShifted24bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - ready_bits = shift; - maskbits = (uint32)-1 >> ( 32 - bps); - for (col = start; col < end; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (32 - src_bit - bps); - if (little_endian) - buff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - else - buff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - - if ((col == start) && (sindex == sample)) - buff2 = buff1 & ((uint32)-1) << (16 - shift); - - buff1 = (buff1 & matchbits) << (src_bit); - - if (ready_bits < 16) /* add another bps bits to the buffer */ - { - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamplesShifted24bits */ - -static int -extractContigSamplesShifted32bits (uint8 *in, uint8 *out, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - tsample_t count, uint32 start, uint32 end, - int shift) - { - int ready_bits = 0, sindex = 0 /*, shift_width = 0 */; - uint32 col, src_byte, src_bit, bit_offset; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 maskbits = 0, matchbits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - uint8 *src = in; - uint8 *dst = out; - - if ((in == NULL) || (out == NULL)) - { - TIFFError("extractContigSamplesShifted32bits","Invalid input or output buffer"); - return (1); - } - - - if ((start > end) || (start > cols)) - { - TIFFError ("extractContigSamplesShifted32bits", - "Invalid start column value %d ignored", start); - start = 0; - } - if ((end == 0) || (end > cols)) - { - TIFFError ("extractContigSamplesShifted32bits", - "Invalid end column value %d ignored", end); - end = cols; - } - - /* shift_width = ((bps + 7) / 8) + 1; */ - ready_bits = shift; - maskbits = (uint64)-1 >> ( 64 - bps); - for (col = start; col < end; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps * spp; - for (sindex = sample; (sindex < spp) && (sindex < (sample + count)); sindex++) - { - if (sindex == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sindex * bps)) / 8; - src_bit = (bit_offset + (sindex * bps)) % 8; - } - - src = in + src_byte; - matchbits = maskbits << (64 - src_bit - bps); - if (little_endian) - { - longbuff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - longbuff2 = longbuff1; - } - - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - if ((col == start) && (sindex == sample)) - buff2 = buff3 & ((uint64)-1) << (32 - shift); - - buff1 = (buff3 & matchbits) << (src_bit); - - if (ready_bits < 32) - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - return (0); - } /* end extractContigSamplesShifted32bits */ - -static int -extractContigSamplesToBuffer(uint8 *out, uint8 *in, uint32 rows, uint32 cols, - tsample_t sample, uint16 spp, uint16 bps, - struct dump_opts *dump) - { - int shift_width, bytes_per_sample, bytes_per_pixel; - uint32 src_rowsize, src_offset, row, first_col = 0; - uint32 dst_rowsize, dst_offset; - tsample_t count = 1; - uint8 *src, *dst; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if ((bps % 8) == 0) - shift_width = 0; - else - { - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - } - src_rowsize = ((bps * spp * cols) + 7) / 8; - dst_rowsize = ((bps * cols) + 7) / 8; - - if ((dump->outfile != NULL) && (dump->level == 4)) - { - dump_info (dump->outfile, dump->format, "extractContigSamplesToBuffer", - "Sample %d, %d rows", sample + 1, rows + 1); - } - for (row = 0; row < rows; row++) - { - src_offset = row * src_rowsize; - dst_offset = row * dst_rowsize; - src = in + src_offset; - dst = out + dst_offset; - - /* pack the data into the scanline */ - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, cols, sample, - spp, bps, count, first_col, cols)) - return (1); - break; - case 1: if (bps == 1) - { - if (extractContigSamples8bits (src, dst, cols, sample, - spp, bps, count, first_col, cols)) - return (1); - break; - } - else - if (extractContigSamples16bits (src, dst, cols, sample, - spp, bps, count, first_col, cols)) - return (1); - break; - case 2: if (extractContigSamples24bits (src, dst, cols, sample, - spp, bps, count, first_col, cols)) - return (1); - break; - case 3: - case 4: - case 5: if (extractContigSamples32bits (src, dst, cols, sample, - spp, bps, count, first_col, cols)) - return (1); - break; - default: TIFFError ("extractContigSamplesToBuffer", "Unsupported bit depth: %d", bps); - return (1); - } - if ((dump->outfile != NULL) && (dump->level == 4)) - dump_buffer(dump->outfile, dump->format, 1, dst_rowsize, row, dst); - } - - return (0); - } /* end extractContigSamplesToBuffer */ - -static int -extractContigSamplesToTileBuffer(uint8 *out, uint8 *in, uint32 rows, uint32 cols, - uint32 imagewidth, uint32 tilewidth, tsample_t sample, - uint16 count, uint16 spp, uint16 bps, struct dump_opts *dump) - { - int shift_width, bytes_per_sample, bytes_per_pixel; - uint32 src_rowsize, src_offset, row; - uint32 dst_rowsize, dst_offset; - uint8 *src, *dst; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if ((bps % 8) == 0) - shift_width = 0; - else - { - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - } - - if ((dump->outfile != NULL) && (dump->level == 4)) - { - dump_info (dump->outfile, dump->format, "extractContigSamplesToTileBuffer", - "Sample %d, %d rows", sample + 1, rows + 1); - } - - src_rowsize = ((bps * spp * imagewidth) + 7) / 8; - dst_rowsize = ((bps * tilewidth * count) + 7) / 8; - - for (row = 0; row < rows; row++) - { - src_offset = row * src_rowsize; - dst_offset = row * dst_rowsize; - src = in + src_offset; - dst = out + dst_offset; - - /* pack the data into the scanline */ - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, cols, sample, - spp, bps, count, 0, cols)) - return (1); - break; - case 1: if (bps == 1) - { - if (extractContigSamples8bits (src, dst, cols, sample, - spp, bps, count, 0, cols)) - return (1); - break; - } - else - if (extractContigSamples16bits (src, dst, cols, sample, - spp, bps, count, 0, cols)) - return (1); - break; - case 2: if (extractContigSamples24bits (src, dst, cols, sample, - spp, bps, count, 0, cols)) - return (1); - break; - case 3: - case 4: - case 5: if (extractContigSamples32bits (src, dst, cols, sample, - spp, bps, count, 0, cols)) - return (1); - break; - default: TIFFError ("extractContigSamplesToTileBuffer", "Unsupported bit depth: %d", bps); - return (1); - } - if ((dump->outfile != NULL) && (dump->level == 4)) - dump_buffer(dump->outfile, dump->format, 1, dst_rowsize, row, dst); - } - - return (0); - } /* end extractContigSamplesToTileBuffer */ - -static int readContigStripsIntoBuffer (TIFF* in, uint8* buf) - { - uint8* bufp = buf; - int32 bytes_read = 0; - uint16 strip, nstrips = TIFFNumberOfStrips(in); - uint32 stripsize = TIFFStripSize(in); - uint32 rows = 0; - uint32 rps = TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps); - tsize_t scanline_size = TIFFScanlineSize(in); - - for (strip = 0; strip < nstrips; strip++) - { - bytes_read = TIFFReadEncodedStrip (in, strip, bufp, -1); - rows = bytes_read / scanline_size; - if ((strip < (nstrips - 1)) && (bytes_read != (int32)stripsize)) - TIFFError("", "Strip %d: read %lu bytes, strip size %lu", - (int)strip + 1, (unsigned long) bytes_read, (unsigned long)stripsize); - - if (bytes_read < 0 && !ignore) - { - TIFFError("", "Error reading strip %lu after %lu rows", - (unsigned long) strip, (unsigned long)rows); - return 0; - } - bufp += bytes_read; - } - - return 1; - } /* end readContigStripsIntoBuffer */ - -static int -combineSeparateSamplesBytes (unsigned char *srcbuffs[], unsigned char *out, - uint32 cols, uint32 rows, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int i, bytes_per_sample; - uint32 row, col, col_offset, src_rowsize, dst_rowsize, row_offset; - unsigned char *src; - unsigned char *dst; - tsample_t s; - - src = srcbuffs[0]; - dst = out; - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateSamplesBytes","Invalid buffer address"); - return (1); - } - - bytes_per_sample = (bps + 7) / 8; - - src_rowsize = ((bps * cols) + 7) / 8; - dst_rowsize = ((bps * spp * cols) + 7) / 8; - for (row = 0; row < rows; row++) - { - if ((dumpfile != NULL) && (level == 2)) - { - for (s = 0; s < spp; s++) - { - dump_info (dumpfile, format, "combineSeparateSamplesBytes","Input data, Sample %d", s); - dump_buffer(dumpfile, format, 1, cols, row, srcbuffs[s] + (row * src_rowsize)); - } - } - dst = out + (row * dst_rowsize); - row_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - col_offset = row_offset + (col * (bps / 8)); - for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++) - { - src = srcbuffs[s] + col_offset; - for (i = 0; i < bytes_per_sample; i++) - *(dst + i) = *(src + i); - src += bytes_per_sample; - dst += bytes_per_sample; - } - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateSamplesBytes","Output data, combined samples"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateSamplesBytes */ - -static int -combineSeparateSamples8bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0; - /* int bytes_per_sample = 0; */ - uint32 src_rowsize, dst_rowsize, src_offset; - uint32 bit_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint8 maskbits = 0, matchbits = 0; - uint8 buff1 = 0, buff2 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[32]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateSamples8bits","Invalid input or output buffer"); - return (1); - } - - /* bytes_per_sample = (bps + 7) / 8; */ - src_rowsize = ((bps * cols) + 7) / 8; - dst_rowsize = ((bps * cols * spp) + 7) / 8; - maskbits = (uint8)-1 >> ( 8 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (8 - src_bit - bps); - /* load up next sample from each plane */ - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - buff1 = ((*src) & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - *dst++ = buff2; - buff2 = buff1; - ready_bits -= 8; - strcpy (action, "Flush"); - } - else - { - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Match bits", matchbits); - dump_byte (dumpfile, format, "Src bits", *src); - dump_byte (dumpfile, format, "Buff1 bits", buff1); - dump_byte (dumpfile, format, "Buff2 bits", buff2); - dump_info (dumpfile, format, "","%s", action); - } - } - } - - if (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Final bits", buff1); - } - } - - if ((dumpfile != NULL) && (level >= 2)) - { - dump_info (dumpfile, format, "combineSeparateSamples8bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateSamples8bits */ - -static int -combineSeparateSamples16bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0 /*, bytes_per_sample = 0 */; - uint32 src_rowsize, dst_rowsize; - uint32 bit_offset, src_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint16 maskbits = 0, matchbits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateSamples16bits","Invalid input or output buffer"); - return (1); - } - - /* bytes_per_sample = (bps + 7) / 8; */ - src_rowsize = ((bps * cols) + 7) / 8; - dst_rowsize = ((bps * cols * spp) + 7) / 8; - maskbits = (uint16)-1 >> (16 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (16 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - buff1 = (src[0] << 8) | src[1]; - else - buff1 = (src[1] << 8) | src[0]; - - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - - dump_short (dumpfile, format, "Match bits", matchbits); - dump_data (dumpfile, format, "Src bits", src, 2); - dump_short (dumpfile, format, "Buff1 bits", buff1); - dump_short (dumpfile, format, "Buff2 bits", buff2); - dump_byte (dumpfile, format, "Write byte", bytebuff); - dump_info (dumpfile, format, "","Ready bits: %d, %s", ready_bits, action); - } - } - } - - /* catch any trailing bits at the end of the line */ - if (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Final bits", bytebuff); - } - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateSamples16bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateSamples16bits */ - -static int -combineSeparateSamples24bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0 /*, bytes_per_sample = 0 */; - uint32 src_rowsize, dst_rowsize; - uint32 bit_offset, src_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint32 maskbits = 0, matchbits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateSamples24bits","Invalid input or output buffer"); - return (1); - } - - /* bytes_per_sample = (bps + 7) / 8; */ - src_rowsize = ((bps * cols) + 7) / 8; - dst_rowsize = ((bps * cols * spp) + 7) / 8; - maskbits = (uint32)-1 >> ( 32 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (32 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - buff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - else - buff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 16) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "","Ready bits: %d, %s", ready_bits, action); - } - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits); - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateSamples24bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateSamples24bits */ - -static int -combineSeparateSamples32bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0 /*, bytes_per_sample = 0, shift_width = 0 */; - uint32 src_rowsize, dst_rowsize, bit_offset, src_offset; - uint32 src_byte = 0, src_bit = 0; - uint32 row, col; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 maskbits = 0, matchbits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateSamples32bits","Invalid input or output buffer"); - return (1); - } - - /* bytes_per_sample = (bps + 7) / 8; */ - src_rowsize = ((bps * cols) + 7) / 8; - dst_rowsize = ((bps * cols * spp) + 7) / 8; - maskbits = (uint64)-1 >> ( 64 - bps); - /* shift_width = ((bps + 7) / 8) + 1; */ - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (64 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - { - longbuff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - longbuff2 = longbuff1; - } - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - buff1 = (buff3 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 32) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Sample %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_wide (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 8); - dump_wide (dumpfile, format, "Buff1 bits ", buff1); - dump_wide (dumpfile, format, "Buff2 bits ", buff2); - dump_info (dumpfile, format, "", "Ready bits: %d, %s", ready_bits, action); - } - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits); - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateSamples32bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out); - } - } - - return (0); - } /* end combineSeparateSamples32bits */ - -static int -combineSeparateTileSamplesBytes (unsigned char *srcbuffs[], unsigned char *out, - uint32 cols, uint32 rows, uint32 imagewidth, - uint32 tw, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int i, bytes_per_sample; - uint32 row, col, col_offset, src_rowsize, dst_rowsize, src_offset; - unsigned char *src; - unsigned char *dst; - tsample_t s; - - src = srcbuffs[0]; - dst = out; - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateTileSamplesBytes","Invalid buffer address"); - return (1); - } - - bytes_per_sample = (bps + 7) / 8; - src_rowsize = ((bps * tw) + 7) / 8; - dst_rowsize = imagewidth * bytes_per_sample * spp; - for (row = 0; row < rows; row++) - { - if ((dumpfile != NULL) && (level == 2)) - { - for (s = 0; s < spp; s++) - { - dump_info (dumpfile, format, "combineSeparateTileSamplesBytes","Input data, Sample %d", s); - dump_buffer(dumpfile, format, 1, cols, row, srcbuffs[s] + (row * src_rowsize)); - } - } - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; -#ifdef DEVELMODE - TIFFError("","Tile row %4d, Src offset %6d Dst offset %6d", - row, src_offset, dst - out); -#endif - for (col = 0; col < cols; col++) - { - col_offset = src_offset + (col * (bps / 8)); - for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++) - { - src = srcbuffs[s] + col_offset; - for (i = 0; i < bytes_per_sample; i++) - *(dst + i) = *(src + i); - dst += bytes_per_sample; - } - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateTileSamplesBytes","Output data, combined samples"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateTileSamplesBytes */ - -static int -combineSeparateTileSamples8bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint32 imagewidth, - uint32 tw, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0; - uint32 src_rowsize, dst_rowsize, src_offset; - uint32 bit_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint8 maskbits = 0, matchbits = 0; - uint8 buff1 = 0, buff2 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[32]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateTileSamples8bits","Invalid input or output buffer"); - return (1); - } - - src_rowsize = ((bps * tw) + 7) / 8; - dst_rowsize = ((imagewidth * bps * spp) + 7) / 8; - maskbits = (uint8)-1 >> ( 8 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (8 - src_bit - bps); - /* load up next sample from each plane */ - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - buff1 = ((*src) & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - *dst++ = buff2; - buff2 = buff1; - ready_bits -= 8; - strcpy (action, "Flush"); - } - else - { - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Match bits", matchbits); - dump_byte (dumpfile, format, "Src bits", *src); - dump_byte (dumpfile, format, "Buff1 bits", buff1); - dump_byte (dumpfile, format, "Buff2 bits", buff2); - dump_info (dumpfile, format, "","%s", action); - } - } - } - - if (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Final bits", buff1); - } - } - - if ((dumpfile != NULL) && (level >= 2)) - { - dump_info (dumpfile, format, "combineSeparateTileSamples8bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateTileSamples8bits */ - -static int -combineSeparateTileSamples16bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint32 imagewidth, - uint32 tw, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0; - uint32 src_rowsize, dst_rowsize; - uint32 bit_offset, src_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint16 maskbits = 0, matchbits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateTileSamples16bits","Invalid input or output buffer"); - return (1); - } - - src_rowsize = ((bps * tw) + 7) / 8; - dst_rowsize = ((imagewidth * bps * spp) + 7) / 8; - maskbits = (uint16)-1 >> (16 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (16 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - buff1 = (src[0] << 8) | src[1]; - else - buff1 = (src[1] << 8) | src[0]; - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - - dump_short (dumpfile, format, "Match bits", matchbits); - dump_data (dumpfile, format, "Src bits", src, 2); - dump_short (dumpfile, format, "Buff1 bits", buff1); - dump_short (dumpfile, format, "Buff2 bits", buff2); - dump_byte (dumpfile, format, "Write byte", bytebuff); - dump_info (dumpfile, format, "","Ready bits: %d, %s", ready_bits, action); - } - } - } - - /* catch any trailing bits at the end of the line */ - if (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - dump_byte (dumpfile, format, "Final bits", bytebuff); - } - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateTileSamples16bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateTileSamples16bits */ - -static int -combineSeparateTileSamples24bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint32 imagewidth, - uint32 tw, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0; - uint32 src_rowsize, dst_rowsize; - uint32 bit_offset, src_offset; - uint32 row, col, src_byte = 0, src_bit = 0; - uint32 maskbits = 0, matchbits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateTileSamples24bits","Invalid input or output buffer"); - return (1); - } - - src_rowsize = ((bps * tw) + 7) / 8; - dst_rowsize = ((imagewidth * bps * spp) + 7) / 8; - maskbits = (uint32)-1 >> ( 32 - bps); - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (32 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - buff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - else - buff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 16) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Samples %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "","Ready bits: %d, %s", ready_bits, action); - } - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits); - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateTileSamples24bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out + (row * dst_rowsize)); - } - } - - return (0); - } /* end combineSeparateTileSamples24bits */ - -static int -combineSeparateTileSamples32bits (uint8 *in[], uint8 *out, uint32 cols, - uint32 rows, uint32 imagewidth, - uint32 tw, uint16 spp, uint16 bps, - FILE *dumpfile, int format, int level) - { - int ready_bits = 0 /*, shift_width = 0 */; - uint32 src_rowsize, dst_rowsize, bit_offset, src_offset; - uint32 src_byte = 0, src_bit = 0; - uint32 row, col; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 maskbits = 0, matchbits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - tsample_t s; - unsigned char *src = in[0]; - unsigned char *dst = out; - char action[8]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("combineSeparateTileSamples32bits","Invalid input or output buffer"); - return (1); - } - - src_rowsize = ((bps * tw) + 7) / 8; - dst_rowsize = ((imagewidth * bps * spp) + 7) / 8; - maskbits = (uint64)-1 >> ( 64 - bps); - /* shift_width = ((bps + 7) / 8) + 1; */ - - for (row = 0; row < rows; row++) - { - ready_bits = 0; - buff1 = buff2 = 0; - dst = out + (row * dst_rowsize); - src_offset = row * src_rowsize; - for (col = 0; col < cols; col++) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = col * bps; - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - - matchbits = maskbits << (64 - src_bit - bps); - for (s = 0; s < spp; s++) - { - src = in[s] + src_offset + src_byte; - if (little_endian) - { - longbuff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - longbuff2 = longbuff1; - } - - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - buff1 = (buff3 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 32) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - strcpy (action, "Flush"); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - strcpy (action, "Update"); - } - ready_bits += bps; - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Sample %d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, s, src_byte, src_bit, dst - out); - dump_wide (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 8); - dump_wide (dumpfile, format, "Buff1 bits ", buff1); - dump_wide (dumpfile, format, "Buff2 bits ", buff2); - dump_info (dumpfile, format, "", "Ready bits: %d, %s", ready_bits, action); - } - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - if ((dumpfile != NULL) && (level == 3)) - { - dump_info (dumpfile, format, "", - "Row %3d, Col %3d, Src byte offset %3d bit offset %2d Dst offset %3d", - row + 1, col + 1, src_byte, src_bit, dst - out); - - dump_long (dumpfile, format, "Match bits ", matchbits); - dump_data (dumpfile, format, "Src bits ", src, 4); - dump_long (dumpfile, format, "Buff1 bits ", buff1); - dump_long (dumpfile, format, "Buff2 bits ", buff2); - dump_byte (dumpfile, format, "Write bits1", bytebuff1); - dump_byte (dumpfile, format, "Write bits2", bytebuff2); - dump_info (dumpfile, format, "", "Ready bits: %2d", ready_bits); - } - - if ((dumpfile != NULL) && (level == 2)) - { - dump_info (dumpfile, format, "combineSeparateTileSamples32bits","Output data"); - dump_buffer(dumpfile, format, 1, dst_rowsize, row, out); - } - } - - return (0); - } /* end combineSeparateTileSamples32bits */ - - -static int readSeparateStripsIntoBuffer (TIFF *in, uint8 *obuf, uint32 length, - uint32 width, uint16 spp, - struct dump_opts *dump) - { - int i, j, bytes_per_sample, bytes_per_pixel, shift_width, result = 1; - int32 bytes_read = 0; - uint16 bps, nstrips, planar, strips_per_sample; - uint32 src_rowsize, dst_rowsize, rows_processed, rps; - uint32 rows_this_strip = 0; - tsample_t s; - tstrip_t strip; - tsize_t scanlinesize = TIFFScanlineSize(in); - tsize_t stripsize = TIFFStripSize(in); - unsigned char *srcbuffs[MAX_SAMPLES]; - unsigned char *buff = NULL; - unsigned char *dst = NULL; - - if (obuf == NULL) - { - TIFFError("readSeparateStripsIntoBuffer","Invalid buffer argument"); - return (0); - } - - memset (srcbuffs, '\0', sizeof(srcbuffs)); - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); - TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &planar); - TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps); - if (rps > length) - rps = length; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - - src_rowsize = ((bps * width) + 7) / 8; - dst_rowsize = ((bps * width * spp) + 7) / 8; - dst = obuf; - - if ((dump->infile != NULL) && (dump->level == 3)) - { - dump_info (dump->infile, dump->format, "", - "Image width %d, length %d, Scanline size, %4d bytes", - width, length, scanlinesize); - dump_info (dump->infile, dump->format, "", - "Bits per sample %d, Samples per pixel %d, Shift width %d", - bps, spp, shift_width); - } - - /* Libtiff seems to assume/require that data for separate planes are - * written one complete plane after another and not interleaved in any way. - * Multiple scanlines and possibly strips of the same plane must be - * written before data for any other plane. - */ - nstrips = TIFFNumberOfStrips(in); - strips_per_sample = nstrips /spp; - - for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++) - { - srcbuffs[s] = NULL; - buff = _TIFFmalloc(stripsize); - if (!buff) - { - TIFFError ("readSeparateStripsIntoBuffer", - "Unable to allocate strip read buffer for sample %d", s); - for (i = 0; i < s; i++) - _TIFFfree (srcbuffs[i]); - return 0; - } - srcbuffs[s] = buff; - } - - rows_processed = 0; - for (j = 0; (j < strips_per_sample) && (result == 1); j++) - { - for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++) - { - buff = srcbuffs[s]; - strip = (s * strips_per_sample) + j; - bytes_read = TIFFReadEncodedStrip (in, strip, buff, stripsize); - rows_this_strip = bytes_read / src_rowsize; - if (bytes_read < 0 && !ignore) - { - TIFFError(TIFFFileName(in), - "Error, can't read strip %lu for sample %d", - (unsigned long) strip, s + 1); - result = 0; - break; - } -#ifdef DEVELMODE - TIFFError("", "Strip %2d, read %5d bytes for %4d scanlines, shift width %d", - strip, bytes_read, rows_this_strip, shift_width); -#endif - } - - if (rps > rows_this_strip) - rps = rows_this_strip; - dst = obuf + (dst_rowsize * rows_processed); - if ((bps % 8) == 0) - { - if (combineSeparateSamplesBytes (srcbuffs, dst, width, rps, - spp, bps, dump->infile, - dump->format, dump->level)) - { - result = 0; - break; - } - } - else - { - switch (shift_width) - { - case 1: if (combineSeparateSamples8bits (srcbuffs, dst, width, rps, - spp, bps, dump->infile, - dump->format, dump->level)) - { - result = 0; - break; - } - break; - case 2: if (combineSeparateSamples16bits (srcbuffs, dst, width, rps, - spp, bps, dump->infile, - dump->format, dump->level)) - { - result = 0; - break; - } - break; - case 3: if (combineSeparateSamples24bits (srcbuffs, dst, width, rps, - spp, bps, dump->infile, - dump->format, dump->level)) - { - result = 0; - break; - } - break; - case 4: - case 5: - case 6: - case 7: - case 8: if (combineSeparateSamples32bits (srcbuffs, dst, width, rps, - spp, bps, dump->infile, - dump->format, dump->level)) - { - result = 0; - break; - } - break; - default: TIFFError ("readSeparateStripsIntoBuffer", "Unsupported bit depth: %d", bps); - result = 0; - break; - } - } - - if ((rows_processed + rps) > length) - { - rows_processed = length; - rps = length - rows_processed; - } - else - rows_processed += rps; - } - - /* free any buffers allocated for each plane or scanline and - * any temporary buffers - */ - for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++) - { - buff = srcbuffs[s]; - if (buff != NULL) - _TIFFfree(buff); - } - - return (result); - } /* end readSeparateStripsIntoBuffer */ - -static int -get_page_geometry (char *name, struct pagedef *page) - { - char *ptr; - int n; - - for (ptr = name; *ptr; ptr++) - *ptr = (char)tolower((int)*ptr); - - for (n = 0; n < MAX_PAPERNAMES; n++) - { - if (strcmp(name, PaperTable[n].name) == 0) - { - page->width = PaperTable[n].width; - page->length = PaperTable[n].length; - strncpy (page->name, PaperTable[n].name, 15); - page->name[15] = '\0'; - return (0); - } - } - - return (1); - } - - -static void -initPageSetup (struct pagedef *page, struct pageseg *pagelist, - struct buffinfo seg_buffs[]) - { - int i; - - strcpy (page->name, ""); - page->mode = PAGE_MODE_NONE; - page->res_unit = RESUNIT_NONE; - page->hres = 0.0; - page->vres = 0.0; - page->width = 0.0; - page->length = 0.0; - page->hmargin = 0.0; - page->vmargin = 0.0; - page->rows = 0; - page->cols = 0; - page->orient = ORIENTATION_NONE; - - for (i = 0; i < MAX_SECTIONS; i++) - { - pagelist[i].x1 = (uint32)0; - pagelist[i].x2 = (uint32)0; - pagelist[i].y1 = (uint32)0; - pagelist[i].y2 = (uint32)0; - pagelist[i].buffsize = (uint32)0; - pagelist[i].position = 0; - pagelist[i].total = 0; - } - - for (i = 0; i < MAX_OUTBUFFS; i++) - { - seg_buffs[i].size = 0; - seg_buffs[i].buffer = NULL; - } - } - -static void -initImageData (struct image_data *image) - { - image->xres = 0.0; - image->yres = 0.0; - image->width = 0; - image->length = 0; - image->res_unit = RESUNIT_NONE; - image->bps = 0; - image->spp = 0; - image->planar = 0; - image->photometric = 0; - image->orientation = 0; - image->compression = COMPRESSION_NONE; - image->adjustments = 0; - } - -static void -initCropMasks (struct crop_mask *cps) - { - int i; - - cps->crop_mode = CROP_NONE; - cps->res_unit = RESUNIT_NONE; - cps->edge_ref = EDGE_TOP; - cps->width = 0; - cps->length = 0; - for (i = 0; i < 4; i++) - cps->margins[i] = 0.0; - cps->bufftotal = (uint32)0; - cps->combined_width = (uint32)0; - cps->combined_length = (uint32)0; - cps->rotation = (uint16)0; - cps->photometric = INVERT_DATA_AND_TAG; - cps->mirror = (uint16)0; - cps->invert = (uint16)0; - cps->zones = (uint32)0; - cps->regions = (uint32)0; - for (i = 0; i < MAX_REGIONS; i++) - { - cps->corners[i].X1 = 0.0; - cps->corners[i].X2 = 0.0; - cps->corners[i].Y1 = 0.0; - cps->corners[i].Y2 = 0.0; - cps->regionlist[i].x1 = 0; - cps->regionlist[i].x2 = 0; - cps->regionlist[i].y1 = 0; - cps->regionlist[i].y2 = 0; - cps->regionlist[i].width = 0; - cps->regionlist[i].length = 0; - cps->regionlist[i].buffsize = 0; - cps->regionlist[i].buffptr = NULL; - cps->zonelist[i].position = 0; - cps->zonelist[i].total = 0; - } - cps->exp_mode = ONE_FILE_COMPOSITE; - cps->img_mode = COMPOSITE_IMAGES; - } - -static void initDumpOptions(struct dump_opts *dump) - { - dump->debug = 0; - dump->format = DUMP_NONE; - dump->level = 1; - sprintf (dump->mode, "w"); - memset (dump->infilename, '\0', PATH_MAX + 1); - memset (dump->outfilename, '\0',PATH_MAX + 1); - dump->infile = NULL; - dump->outfile = NULL; - } - -/* Compute pixel offsets into the image for margins and fixed regions */ -static int -computeInputPixelOffsets(struct crop_mask *crop, struct image_data *image, - struct offset *off) - { - double scale; - float xres, yres; - /* Values for these offsets are in pixels from start of image, not bytes, - * and are indexed from zero to width - 1 or length - 1 */ - uint32 tmargin, bmargin, lmargin, rmargin; - uint32 startx, endx; /* offsets of first and last columns to extract */ - uint32 starty, endy; /* offsets of first and last row to extract */ - uint32 width, length, crop_width, crop_length; - uint32 i, max_width, max_length, zwidth, zlength, buffsize; - uint32 x1, x2, y1, y2; - - if (image->res_unit != RESUNIT_INCH && image->res_unit != RESUNIT_CENTIMETER) - { - xres = 1.0; - yres = 1.0; - } - else - { - if (((image->xres == 0) || (image->yres == 0)) && - (crop->res_unit != RESUNIT_NONE) && - ((crop->crop_mode & CROP_REGIONS) || (crop->crop_mode & CROP_MARGINS) || - (crop->crop_mode & CROP_LENGTH) || (crop->crop_mode & CROP_WIDTH))) - { - TIFFError("computeInputPixelOffsets", "Cannot compute margins or fixed size sections without image resolution"); - TIFFError("computeInputPixelOffsets", "Specify units in pixels and try again"); - return (-1); - } - xres = image->xres; - yres = image->yres; - } - - /* Translate user units to image units */ - scale = 1.0; - switch (crop->res_unit) { - case RESUNIT_CENTIMETER: - if (image->res_unit == RESUNIT_INCH) - scale = 1.0/2.54; - break; - case RESUNIT_INCH: - if (image->res_unit == RESUNIT_CENTIMETER) - scale = 2.54; - break; - case RESUNIT_NONE: /* Dimensions in pixels */ - default: - break; - } - - if (crop->crop_mode & CROP_REGIONS) - { - max_width = max_length = 0; - for (i = 0; i < crop->regions; i++) - { - if ((crop->res_unit == RESUNIT_INCH) || (crop->res_unit == RESUNIT_CENTIMETER)) - { - x1 = (uint32) (crop->corners[i].X1 * scale * xres); - x2 = (uint32) (crop->corners[i].X2 * scale * xres); - y1 = (uint32) (crop->corners[i].Y1 * scale * yres); - y2 = (uint32) (crop->corners[i].Y2 * scale * yres); - } - else - { - x1 = (uint32) (crop->corners[i].X1); - x2 = (uint32) (crop->corners[i].X2); - y1 = (uint32) (crop->corners[i].Y1); - y2 = (uint32) (crop->corners[i].Y2); - } - if (x1 < 1) - crop->regionlist[i].x1 = 0; - else - crop->regionlist[i].x1 = (uint32) (x1 - 1); - - if (x2 > image->width - 1) - crop->regionlist[i].x2 = image->width - 1; - else - crop->regionlist[i].x2 = (uint32) (x2 - 1); - zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1; - - if (y1 < 1) - crop->regionlist[i].y1 = 0; - else - crop->regionlist[i].y1 = (uint32) (y1 - 1); - - if (y2 > image->length - 1) - crop->regionlist[i].y2 = image->length - 1; - else - crop->regionlist[i].y2 = (uint32) (y2 - 1); - - zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1; - - if (zwidth > max_width) - max_width = zwidth; - if (zlength > max_length) - max_length = zlength; - - buffsize = (uint32) - (((zwidth * image->bps * image->spp + 7 ) / 8) * (zlength + 1)); - - crop->regionlist[i].buffsize = buffsize; - crop->bufftotal += buffsize; - if (crop->img_mode == COMPOSITE_IMAGES) - { - switch (crop->edge_ref) - { - case EDGE_LEFT: - case EDGE_RIGHT: - crop->combined_length = zlength; - crop->combined_width += zwidth; - break; - case EDGE_BOTTOM: - case EDGE_TOP: /* width from left, length from top */ - default: - crop->combined_width = zwidth; - crop->combined_length += zlength; - break; - } - } - } - return (0); - } - - /* Convert crop margins into offsets into image - * Margins are expressed as pixel rows and columns, not bytes - */ - if (crop->crop_mode & CROP_MARGINS) - { - if (crop->res_unit != RESUNIT_INCH && crop->res_unit != RESUNIT_CENTIMETER) - { /* User has specified pixels as reference unit */ - tmargin = (uint32)(crop->margins[0]); - lmargin = (uint32)(crop->margins[1]); - bmargin = (uint32)(crop->margins[2]); - rmargin = (uint32)(crop->margins[3]); - } - else - { /* inches or centimeters specified */ - tmargin = (uint32)(crop->margins[0] * scale * yres); - lmargin = (uint32)(crop->margins[1] * scale * xres); - bmargin = (uint32)(crop->margins[2] * scale * yres); - rmargin = (uint32)(crop->margins[3] * scale * xres); - } - - if ((lmargin + rmargin) > image->width) - { - TIFFError("computeInputPixelOffsets", "Combined left and right margins exceed image width"); - lmargin = (uint32) 0; - rmargin = (uint32) 0; - return (-1); - } - if ((tmargin + bmargin) > image->length) - { - TIFFError("computeInputPixelOffsets", "Combined top and bottom margins exceed image length"); - tmargin = (uint32) 0; - bmargin = (uint32) 0; - return (-1); - } - } - else - { /* no margins requested */ - tmargin = (uint32) 0; - lmargin = (uint32) 0; - bmargin = (uint32) 0; - rmargin = (uint32) 0; - } - - /* Width, height, and margins are expressed as pixel offsets into image */ - if (crop->res_unit != RESUNIT_INCH && crop->res_unit != RESUNIT_CENTIMETER) - { - if (crop->crop_mode & CROP_WIDTH) - width = (uint32)crop->width; - else - width = image->width - lmargin - rmargin; - - if (crop->crop_mode & CROP_LENGTH) - length = (uint32)crop->length; - else - length = image->length - tmargin - bmargin; - } - else - { - if (crop->crop_mode & CROP_WIDTH) - width = (uint32)(crop->width * scale * image->xres); - else - width = image->width - lmargin - rmargin; - - if (crop->crop_mode & CROP_LENGTH) - length = (uint32)(crop->length * scale * image->yres); - else - length = image->length - tmargin - bmargin; - } - - off->tmargin = tmargin; - off->bmargin = bmargin; - off->lmargin = lmargin; - off->rmargin = rmargin; - - /* Calculate regions defined by margins, width, and length. - * Coordinates expressed as 0 to imagewidth - 1, imagelength - 1, - * since they are used to compute offsets into buffers */ - switch (crop->edge_ref) { - case EDGE_BOTTOM: - startx = lmargin; - if ((startx + width) >= (image->width - rmargin)) - endx = image->width - rmargin - 1; - else - endx = startx + width - 1; - - endy = image->length - bmargin - 1; - if ((endy - length) <= tmargin) - starty = tmargin; - else - starty = endy - length + 1; - break; - case EDGE_RIGHT: - endx = image->width - rmargin - 1; - if ((endx - width) <= lmargin) - startx = lmargin; - else - startx = endx - width + 1; - - starty = tmargin; - if ((starty + length) >= (image->length - bmargin)) - endy = image->length - bmargin - 1; - else - endy = starty + length - 1; - break; - case EDGE_TOP: /* width from left, length from top */ - case EDGE_LEFT: - default: - startx = lmargin; - if ((startx + width) >= (image->width - rmargin)) - endx = image->width - rmargin - 1; - else - endx = startx + width - 1; - - starty = tmargin; - if ((starty + length) >= (image->length - bmargin)) - endy = image->length - bmargin - 1; - else - endy = starty + length - 1; - break; - } - off->startx = startx; - off->starty = starty; - off->endx = endx; - off->endy = endy; - - crop_width = endx - startx + 1; - crop_length = endy - starty + 1; - - if (crop_width <= 0) - { - TIFFError("computeInputPixelOffsets", - "Invalid left/right margins and /or image crop width requested"); - return (-1); - } - if (crop_width > image->width) - crop_width = image->width; - - if (crop_length <= 0) - { - TIFFError("computeInputPixelOffsets", - "Invalid top/bottom margins and /or image crop length requested"); - return (-1); - } - if (crop_length > image->length) - crop_length = image->length; - - off->crop_width = crop_width; - off->crop_length = crop_length; - - return (0); - } /* end computeInputPixelOffsets */ - -/* - * Translate crop options into pixel offsets for one or more regions of the image. - * Options are applied in this order: margins, specific width and length, zones, - * but all are optional. Margins are relative to each edge. Width, length and - * zones are relative to the specified reference edge. Zones are expressed as - * X:Y where X is the ordinal value in a set of Y equal sized portions. eg. - * 2:3 would indicate the middle third of the region qualified by margins and - * any explicit width and length specified. Regions are specified by coordinates - * of the top left and lower right corners with range 1 to width or height. - */ - -static int -getCropOffsets(struct image_data *image, struct crop_mask *crop, struct dump_opts *dump) - { - struct offset offsets; - int i; - int32 test; - uint32 seg, total, need_buff = 0; - uint32 buffsize; - uint32 zwidth, zlength; - - memset(&offsets, '\0', sizeof(struct offset)); - crop->bufftotal = 0; - crop->combined_width = (uint32)0; - crop->combined_length = (uint32)0; - crop->selections = 0; - - /* Compute pixel offsets if margins or fixed width or length specified */ - if ((crop->crop_mode & CROP_MARGINS) || - (crop->crop_mode & CROP_REGIONS) || - (crop->crop_mode & CROP_LENGTH) || - (crop->crop_mode & CROP_WIDTH)) - { - if (computeInputPixelOffsets(crop, image, &offsets)) - { - TIFFError ("getCropOffsets", "Unable to compute crop margins"); - return (-1); - } - need_buff = TRUE; - crop->selections = crop->regions; - /* Regions are only calculated from top and left edges with no margins */ - if (crop->crop_mode & CROP_REGIONS) - return (0); - } - else - { /* cropped area is the full image */ - offsets.tmargin = 0; - offsets.lmargin = 0; - offsets.bmargin = 0; - offsets.rmargin = 0; - offsets.crop_width = image->width; - offsets.crop_length = image->length; - offsets.startx = 0; - offsets.endx = image->width - 1; - offsets.starty = 0; - offsets.endy = image->length - 1; - need_buff = FALSE; - } - - if (dump->outfile != NULL) - { - dump_info (dump->outfile, dump->format, "", "Margins: Top: %d Left: %d Bottom: %d Right: %d", - offsets.tmargin, offsets.lmargin, offsets.bmargin, offsets.rmargin); - dump_info (dump->outfile, dump->format, "", "Crop region within margins: Adjusted Width: %6d Length: %6d", - offsets.crop_width, offsets.crop_length); - } - - if (!(crop->crop_mode & CROP_ZONES)) /* no crop zones requested */ - { - if (need_buff == FALSE) /* No margins or fixed width or length areas */ - { - crop->selections = 0; - crop->combined_width = image->width; - crop->combined_length = image->length; - return (0); - } - else - { - /* Use one region for margins and fixed width or length areas - * even though it was not formally declared as a region. - */ - crop->selections = 1; - crop->zones = 1; - crop->zonelist[0].total = 1; - crop->zonelist[0].position = 1; - } - } - else - crop->selections = crop->zones; - - for (i = 0; i < crop->zones; i++) - { - seg = crop->zonelist[i].position; - total = crop->zonelist[i].total; - - switch (crop->edge_ref) - { - case EDGE_LEFT: /* zones from left to right, length from top */ - zlength = offsets.crop_length; - crop->regionlist[i].y1 = offsets.starty; - crop->regionlist[i].y2 = offsets.endy; - - crop->regionlist[i].x1 = offsets.startx + - (uint32)(offsets.crop_width * 1.0 * (seg - 1) / total); - test = (int32)offsets.startx + - (int32)(offsets.crop_width * 1.0 * seg / total); - if (test < 1 ) - crop->regionlist[i].x2 = 0; - else - { - if (test > (int32)(image->width - 1)) - crop->regionlist[i].x2 = image->width - 1; - else - crop->regionlist[i].x2 = test - 1; - } - zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1; - - /* This is passed to extractCropZone or extractCompositeZones */ - crop->combined_length = (uint32)zlength; - if (crop->exp_mode == COMPOSITE_IMAGES) - crop->combined_width += (uint32)zwidth; - else - crop->combined_width = (uint32)zwidth; - break; - case EDGE_BOTTOM: /* width from left, zones from bottom to top */ - zwidth = offsets.crop_width; - crop->regionlist[i].x1 = offsets.startx; - crop->regionlist[i].x2 = offsets.endx; - - test = offsets.endy - (uint32)(offsets.crop_length * 1.0 * seg / total); - if (test < 1 ) - crop->regionlist[i].y1 = 0; - else - crop->regionlist[i].y1 = test + 1; - - test = offsets.endy - (offsets.crop_length * 1.0 * (seg - 1) / total); - if (test < 1 ) - crop->regionlist[i].y2 = 0; - else - { - if (test > (int32)(image->length - 1)) - crop->regionlist[i].y2 = image->length - 1; - else - crop->regionlist[i].y2 = test; - } - zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1; - - /* This is passed to extractCropZone or extractCompositeZones */ - if (crop->exp_mode == COMPOSITE_IMAGES) - crop->combined_length += (uint32)zlength; - else - crop->combined_length = (uint32)zlength; - crop->combined_width = (uint32)zwidth; - break; - case EDGE_RIGHT: /* zones from right to left, length from top */ - zlength = offsets.crop_length; - crop->regionlist[i].y1 = offsets.starty; - crop->regionlist[i].y2 = offsets.endy; - - crop->regionlist[i].x1 = offsets.startx + - (uint32)(offsets.crop_width * (total - seg) * 1.0 / total); - test = offsets.startx + - (offsets.crop_width * (total - seg + 1) * 1.0 / total); - if (test < 1 ) - crop->regionlist[i].x2 = 0; - else - { - if (test > (int32)(image->width - 1)) - crop->regionlist[i].x2 = image->width - 1; - else - crop->regionlist[i].x2 = test - 1; - } - zwidth = crop->regionlist[i].x2 - crop->regionlist[i].x1 + 1; - - /* This is passed to extractCropZone or extractCompositeZones */ - crop->combined_length = (uint32)zlength; - if (crop->exp_mode == COMPOSITE_IMAGES) - crop->combined_width += (uint32)zwidth; - else - crop->combined_width = (uint32)zwidth; - break; - case EDGE_TOP: /* width from left, zones from top to bottom */ - default: - zwidth = offsets.crop_width; - crop->regionlist[i].x1 = offsets.startx; - crop->regionlist[i].x2 = offsets.endx; - - crop->regionlist[i].y1 = offsets.starty + (uint32)(offsets.crop_length * 1.0 * (seg - 1) / total); - test = offsets.starty + (uint32)(offsets.crop_length * 1.0 * seg / total); - if (test < 1 ) - crop->regionlist[i].y2 = 0; - else - { - if (test > (int32)(image->length - 1)) - crop->regionlist[i].y2 = image->length - 1; - else - crop->regionlist[i].y2 = test - 1; - } - zlength = crop->regionlist[i].y2 - crop->regionlist[i].y1 + 1; - - /* This is passed to extractCropZone or extractCompositeZones */ - if (crop->exp_mode == COMPOSITE_IMAGES) - crop->combined_length += (uint32)zlength; - else - crop->combined_length = (uint32)zlength; - crop->combined_width = (uint32)zwidth; - break; - } /* end switch statement */ - - buffsize = (uint32) - ((((zwidth * image->bps * image->spp) + 7 ) / 8) * (zlength + 1)); - crop->regionlist[i].width = (uint32) zwidth; - crop->regionlist[i].length = (uint32) zlength; - crop->regionlist[i].buffsize = buffsize; - crop->bufftotal += buffsize; - - - if (dump->outfile != NULL) - dump_info (dump->outfile, dump->format, "", "Zone %d, width: %4d, length: %4d, x1: %4d x2: %4d y1: %4d y2: %4d", - i + 1, (uint32)zwidth, (uint32)zlength, - crop->regionlist[i].x1, crop->regionlist[i].x2, - crop->regionlist[i].y1, crop->regionlist[i].y2); - } - - return (0); - } /* end getCropOffsets */ - - -static int -computeOutputPixelOffsets (struct crop_mask *crop, struct image_data *image, - struct pagedef *page, struct pageseg *sections, - struct dump_opts* dump) - { - double scale; - double pwidth, plength; /* Output page width and length in user units*/ - uint32 iwidth, ilength; /* Input image width and length in pixels*/ - uint32 owidth, olength; /* Output image width and length in pixels*/ - uint32 orows, ocols; /* rows and cols for output */ - uint32 hmargin, vmargin; /* Horizontal and vertical margins */ - uint32 x1, x2, y1, y2, line_bytes; - /* unsigned int orientation; */ - uint32 i, j, k; - - scale = 1.0; - if (page->res_unit == RESUNIT_NONE) - page->res_unit = image->res_unit; - - switch (image->res_unit) { - case RESUNIT_CENTIMETER: - if (page->res_unit == RESUNIT_INCH) - scale = 1.0/2.54; - break; - case RESUNIT_INCH: - if (page->res_unit == RESUNIT_CENTIMETER) - scale = 2.54; - break; - case RESUNIT_NONE: /* Dimensions in pixels */ - default: - break; - } - - /* get width, height, resolutions of input image selection */ - if (crop->combined_width > 0) - iwidth = crop->combined_width; - else - iwidth = image->width; - if (crop->combined_length > 0) - ilength = crop->combined_length; - else - ilength = image->length; - - if (page->hres <= 1.0) - page->hres = image->xres; - if (page->vres <= 1.0) - page->vres = image->yres; - - if ((page->hres < 1.0) || (page->vres < 1.0)) - { - TIFFError("computeOutputPixelOffsets", - "Invalid horizontal or vertical resolution specified or read from input image"); - return (1); - } - - /* If no page sizes are being specified, we just use the input image size to - * calculate maximum margins that can be taken from image. - */ - if (page->width <= 0) - pwidth = iwidth; - else - pwidth = page->width; - - if (page->length <= 0) - plength = ilength; - else - plength = page->length; - - if (dump->debug) - { - TIFFError("", "Page size: %s, Vres: %3.2f, Hres: %3.2f, " - "Hmargin: %3.2f, Vmargin: %3.2f", - page->name, page->vres, page->hres, - page->hmargin, page->vmargin); - TIFFError("", "Res_unit: %d, Scale: %3.2f, Page width: %3.2f, length: %3.2f", - page->res_unit, scale, pwidth, plength); - } - - /* compute margins at specified unit and resolution */ - if (page->mode & PAGE_MODE_MARGINS) - { - if (page->res_unit == RESUNIT_INCH || page->res_unit == RESUNIT_CENTIMETER) - { /* inches or centimeters specified */ - hmargin = (uint32)(page->hmargin * scale * page->hres * ((image->bps + 7)/ 8)); - vmargin = (uint32)(page->vmargin * scale * page->vres * ((image->bps + 7)/ 8)); - } - else - { /* Otherwise user has specified pixels as reference unit */ - hmargin = (uint32)(page->hmargin * scale * ((image->bps + 7)/ 8)); - vmargin = (uint32)(page->vmargin * scale * ((image->bps + 7)/ 8)); - } - - if ((hmargin * 2.0) > (pwidth * page->hres)) - { - TIFFError("computeOutputPixelOffsets", - "Combined left and right margins exceed page width"); - hmargin = (uint32) 0; - return (-1); - } - if ((vmargin * 2.0) > (plength * page->vres)) - { - TIFFError("computeOutputPixelOffsets", - "Combined top and bottom margins exceed page length"); - vmargin = (uint32) 0; - return (-1); - } - } - else - { - hmargin = 0; - vmargin = 0; - } - - if (page->mode & PAGE_MODE_ROWSCOLS ) - { - /* Maybe someday but not for now */ - if (page->mode & PAGE_MODE_MARGINS) - TIFFError("computeOutputPixelOffsets", - "Output margins cannot be specified with rows and columns"); - - owidth = TIFFhowmany(iwidth, page->cols); - olength = TIFFhowmany(ilength, page->rows); - } - else - { - if (page->mode & PAGE_MODE_PAPERSIZE ) - { - owidth = (uint32)((pwidth * page->hres) - (hmargin * 2)); - olength = (uint32)((plength * page->vres) - (vmargin * 2)); - } - else - { - owidth = (uint32)(iwidth - (hmargin * 2 * page->hres)); - olength = (uint32)(ilength - (vmargin * 2 * page->vres)); - } - } - - if (owidth > iwidth) - owidth = iwidth; - if (olength > ilength) - olength = ilength; - - /* Compute the number of pages required for Portrait or Landscape */ - switch (page->orient) - { - case ORIENTATION_NONE: - case ORIENTATION_PORTRAIT: - ocols = TIFFhowmany(iwidth, owidth); - orows = TIFFhowmany(ilength, olength); - /* orientation = ORIENTATION_PORTRAIT; */ - break; - - case ORIENTATION_LANDSCAPE: - ocols = TIFFhowmany(iwidth, olength); - orows = TIFFhowmany(ilength, owidth); - x1 = olength; - olength = owidth; - owidth = x1; - /* orientation = ORIENTATION_LANDSCAPE; */ - break; - - case ORIENTATION_AUTO: - default: - x1 = TIFFhowmany(iwidth, owidth); - x2 = TIFFhowmany(ilength, olength); - y1 = TIFFhowmany(iwidth, olength); - y2 = TIFFhowmany(ilength, owidth); - - if ( (x1 * x2) < (y1 * y2)) - { /* Portrait */ - ocols = x1; - orows = x2; - /* orientation = ORIENTATION_PORTRAIT; */ - } - else - { /* Landscape */ - ocols = y1; - orows = y2; - x1 = olength; - olength = owidth; - owidth = x1; - /* orientation = ORIENTATION_LANDSCAPE; */ - } - } - - if (ocols < 1) - ocols = 1; - if (orows < 1) - orows = 1; - - /* If user did not specify rows and cols, set them from calcuation */ - if (page->rows < 1) - page->rows = orows; - if (page->cols < 1) - page->cols = ocols; - - line_bytes = TIFFhowmany8(owidth * image->bps) * image->spp; - - if ((page->rows * page->cols) > MAX_SECTIONS) - { - TIFFError("computeOutputPixelOffsets", - "Rows and Columns exceed maximum sections\nIncrease resolution or reduce sections"); - return (-1); - } - - /* build the list of offsets for each output section */ - for (k = 0, i = 0 && k <= MAX_SECTIONS; i < orows; i++) - { - y1 = (uint32)(olength * i); - y2 = (uint32)(olength * (i + 1) - 1); - if (y2 >= ilength) - y2 = ilength - 1; - for (j = 0; j < ocols; j++, k++) - { - x1 = (uint32)(owidth * j); - x2 = (uint32)(owidth * (j + 1) - 1); - if (x2 >= iwidth) - x2 = iwidth - 1; - sections[k].x1 = x1; - sections[k].x2 = x2; - sections[k].y1 = y1; - sections[k].y2 = y2; - sections[k].buffsize = line_bytes * olength; - sections[k].position = k + 1; - sections[k].total = orows * ocols; - } - } - return (0); - } /* end computeOutputPixelOffsets */ - -static int -loadImage(TIFF* in, struct image_data *image, struct dump_opts *dump, unsigned char **read_ptr) - { - uint32 i; - float xres = 0.0, yres = 0.0; - uint16 nstrips = 0, ntiles = 0, planar = 0; - uint16 bps = 0, spp = 0, res_unit = 0; - uint16 orientation = 0; - uint16 input_compression = 0, input_photometric = 0; - uint16 subsampling_horiz, subsampling_vert; - uint32 width = 0, length = 0; - uint32 stsize = 0, tlsize = 0, buffsize = 0, scanlinesize = 0; - uint32 tw = 0, tl = 0; /* Tile width and length */ - uint32 tile_rowsize = 0; - unsigned char *read_buff = NULL; - unsigned char *new_buff = NULL; - int readunit = 0; - static uint32 prev_readsize = 0; - - TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps); - TIFFGetFieldDefaulted(in, TIFFTAG_SAMPLESPERPIXEL, &spp); - TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &planar); - TIFFGetFieldDefaulted(in, TIFFTAG_ORIENTATION, &orientation); - if (! TIFFGetFieldDefaulted(in, TIFFTAG_PHOTOMETRIC, &input_photometric)) - TIFFError("loadImage","Image lacks Photometric interpreation tag"); - if (! TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width)) - TIFFError("loadimage","Image lacks image width tag"); - if(! TIFFGetField(in, TIFFTAG_IMAGELENGTH, &length)) - TIFFError("loadimage","Image lacks image length tag"); - TIFFGetFieldDefaulted(in, TIFFTAG_XRESOLUTION, &xres); - TIFFGetFieldDefaulted(in, TIFFTAG_YRESOLUTION, &yres); - if (!TIFFGetFieldDefaulted(in, TIFFTAG_RESOLUTIONUNIT, &res_unit)) - res_unit = RESUNIT_INCH; - if (!TIFFGetField(in, TIFFTAG_COMPRESSION, &input_compression)) - input_compression = COMPRESSION_NONE; - -#ifdef DEBUG2 - char compressionid[16]; - - switch (input_compression) - { - case COMPRESSION_NONE: /* 1 dump mode */ - strcpy (compressionid, "None/dump"); - break; - case COMPRESSION_CCITTRLE: /* 2 CCITT modified Huffman RLE */ - strcpy (compressionid, "Huffman RLE"); - break; - case COMPRESSION_CCITTFAX3: /* 3 CCITT Group 3 fax encoding */ - strcpy (compressionid, "Group3 Fax"); - break; - case COMPRESSION_CCITTFAX4: /* 4 CCITT Group 4 fax encoding */ - strcpy (compressionid, "Group4 Fax"); - break; - case COMPRESSION_LZW: /* 5 Lempel-Ziv & Welch */ - strcpy (compressionid, "LZW"); - break; - case COMPRESSION_OJPEG: /* 6 !6.0 JPEG */ - strcpy (compressionid, "Old Jpeg"); - break; - case COMPRESSION_JPEG: /* 7 %JPEG DCT compression */ - strcpy (compressionid, "New Jpeg"); - break; - case COMPRESSION_NEXT: /* 32766 NeXT 2-bit RLE */ - strcpy (compressionid, "Next RLE"); - break; - case COMPRESSION_CCITTRLEW: /* 32771 #1 w/ word alignment */ - strcpy (compressionid, "CITTRLEW"); - break; - case COMPRESSION_PACKBITS: /* 32773 Macintosh RLE */ - strcpy (compressionid, "Mac Packbits"); - break; - case COMPRESSION_THUNDERSCAN: /* 32809 ThunderScan RLE */ - strcpy (compressionid, "Thunderscan"); - break; - case COMPRESSION_IT8CTPAD: /* 32895 IT8 CT w/padding */ - strcpy (compressionid, "IT8 padded"); - break; - case COMPRESSION_IT8LW: /* 32896 IT8 Linework RLE */ - strcpy (compressionid, "IT8 RLE"); - break; - case COMPRESSION_IT8MP: /* 32897 IT8 Monochrome picture */ - strcpy (compressionid, "IT8 mono"); - break; - case COMPRESSION_IT8BL: /* 32898 IT8 Binary line art */ - strcpy (compressionid, "IT8 lineart"); - break; - case COMPRESSION_PIXARFILM: /* 32908 Pixar companded 10bit LZW */ - strcpy (compressionid, "Pixar 10 bit"); - break; - case COMPRESSION_PIXARLOG: /* 32909 Pixar companded 11bit ZIP */ - strcpy (compressionid, "Pixar 11bit"); - break; - case COMPRESSION_DEFLATE: /* 32946 Deflate compression */ - strcpy (compressionid, "Deflate"); - break; - case COMPRESSION_ADOBE_DEFLATE: /* 8 Deflate compression */ - strcpy (compressionid, "Adobe deflate"); - break; - default: - strcpy (compressionid, "None/unknown"); - break; - } - TIFFError("loadImage", "Input compression %s", compressionid); -#endif - - scanlinesize = TIFFScanlineSize(in); - image->bps = bps; - image->spp = spp; - image->planar = planar; - image->width = width; - image->length = length; - image->xres = xres; - image->yres = yres; - image->res_unit = res_unit; - image->compression = input_compression; - image->photometric = input_photometric; -#ifdef DEBUG2 - char photometricid[12]; - - switch (input_photometric) - { - case PHOTOMETRIC_MINISWHITE: - strcpy (photometricid, "MinIsWhite"); - break; - case PHOTOMETRIC_MINISBLACK: - strcpy (photometricid, "MinIsBlack"); - break; - case PHOTOMETRIC_RGB: - strcpy (photometricid, "RGB"); - break; - case PHOTOMETRIC_PALETTE: - strcpy (photometricid, "Palette"); - break; - case PHOTOMETRIC_MASK: - strcpy (photometricid, "Mask"); - break; - case PHOTOMETRIC_SEPARATED: - strcpy (photometricid, "Separated"); - break; - case PHOTOMETRIC_YCBCR: - strcpy (photometricid, "YCBCR"); - break; - case PHOTOMETRIC_CIELAB: - strcpy (photometricid, "CIELab"); - break; - case PHOTOMETRIC_ICCLAB: - strcpy (photometricid, "ICCLab"); - break; - case PHOTOMETRIC_ITULAB: - strcpy (photometricid, "ITULab"); - break; - case PHOTOMETRIC_LOGL: - strcpy (photometricid, "LogL"); - break; - case PHOTOMETRIC_LOGLUV: - strcpy (photometricid, "LOGLuv"); - break; - default: - strcpy (photometricid, "Unknown"); - break; - } - TIFFError("loadImage", "Input photometric interpretation %s", photometricid); - -#endif - image->orientation = orientation; - switch (orientation) - { - case 0: - case ORIENTATION_TOPLEFT: - image->adjustments = 0; - break; - case ORIENTATION_TOPRIGHT: - image->adjustments = MIRROR_HORIZ; - break; - case ORIENTATION_BOTRIGHT: - image->adjustments = ROTATECW_180; - break; - case ORIENTATION_BOTLEFT: - image->adjustments = MIRROR_VERT; - break; - case ORIENTATION_LEFTTOP: - image->adjustments = MIRROR_VERT | ROTATECW_90; - break; - case ORIENTATION_RIGHTTOP: - image->adjustments = ROTATECW_90; - break; - case ORIENTATION_RIGHTBOT: - image->adjustments = MIRROR_VERT | ROTATECW_270; - break; - case ORIENTATION_LEFTBOT: - image->adjustments = ROTATECW_270; - break; - default: - image->adjustments = 0; - image->orientation = ORIENTATION_TOPLEFT; - } - - if ((bps == 0) || (spp == 0)) - { - TIFFError("loadImage", "Invalid samples per pixel (%d) or bits per sample (%d)", - spp, bps); - return (-1); - } - - if (TIFFIsTiled(in)) - { - readunit = TILE; - tlsize = TIFFTileSize(in); - ntiles = TIFFNumberOfTiles(in); - TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(in, TIFFTAG_TILELENGTH, &tl); - - tile_rowsize = TIFFTileRowSize(in); - buffsize = tlsize * ntiles; - - - if (buffsize < (uint32)(ntiles * tl * tile_rowsize)) - { - buffsize = ntiles * tl * tile_rowsize; -#ifdef DEBUG2 - TIFFError("loadImage", - "Tilesize %u is too small, using ntiles * tilelength * tilerowsize %lu", - tlsize, (unsigned long)buffsize); -#endif - } - - if (dump->infile != NULL) - dump_info (dump->infile, dump->format, "", - "Tilesize: %u, Number of Tiles: %u, Tile row size: %u", - tlsize, ntiles, tile_rowsize); - } - else - { - readunit = STRIP; - TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - stsize = TIFFStripSize(in); - nstrips = TIFFNumberOfStrips(in); - buffsize = stsize * nstrips; - - if (buffsize < (uint32) (((length * width * spp * bps) + 7) / 8)) - { - buffsize = ((length * width * spp * bps) + 7) / 8; -#ifdef DEBUG2 - TIFFError("loadImage", - "Stripsize %u is too small, using imagelength * width * spp * bps / 8 = %lu", - stsize, (unsigned long)buffsize); -#endif - } - - if (dump->infile != NULL) - dump_info (dump->infile, dump->format, "", - "Stripsize: %u, Number of Strips: %u, Rows per Strip: %u, Scanline size: %u", - stsize, nstrips, rowsperstrip, scanlinesize); - } - - if (input_compression == COMPRESSION_JPEG) - { /* Force conversion to RGB */ - jpegcolormode = JPEGCOLORMODE_RGB; - TIFFSetField(in, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } - /* The clause up to the read statement is taken from Tom Lane's tiffcp patch */ - else - { /* Otherwise, can't handle subsampled input */ - if (input_photometric == PHOTOMETRIC_YCBCR) - { - TIFFGetFieldDefaulted(in, TIFFTAG_YCBCRSUBSAMPLING, - &subsampling_horiz, &subsampling_vert); - if (subsampling_horiz != 1 || subsampling_vert != 1) - { - TIFFError("loadImage", - "Can't copy/convert subsampled image with subsampling %d horiz %d vert", - subsampling_horiz, subsampling_vert); - return (-1); - } - } - } - - read_buff = *read_ptr; - /* +3 : add a few guard bytes since reverseSamples16bits() can read a bit */ - /* outside buffer */ - if (!read_buff) - read_buff = (unsigned char *)_TIFFmalloc(buffsize+3); - else - { - if (prev_readsize < buffsize) - { - new_buff = _TIFFrealloc(read_buff, buffsize); - if (!new_buff) - { - free (read_buff); - read_buff = (unsigned char *)_TIFFmalloc(buffsize+3); - } - else - read_buff = new_buff; - } - } - read_buff[buffsize] = 0; - read_buff[buffsize+1] = 0; - read_buff[buffsize+2] = 0; - - if (!read_buff) - { - TIFFError("loadImage", "Unable to allocate/reallocate read buffer"); - return (-1); - } - - prev_readsize = buffsize; - *read_ptr = read_buff; - - /* N.B. The read functions used copy separate plane data into a buffer as interleaved - * samples rather than separate planes so the same logic works to extract regions - * regardless of the way the data are organized in the input file. - */ - switch (readunit) { - case STRIP: - if (planar == PLANARCONFIG_CONTIG) - { - if (!(readContigStripsIntoBuffer(in, read_buff))) - { - TIFFError("loadImage", "Unable to read contiguous strips into buffer"); - return (-1); - } - } - else - { - if (!(readSeparateStripsIntoBuffer(in, read_buff, length, width, spp, dump))) - { - TIFFError("loadImage", "Unable to read separate strips into buffer"); - return (-1); - } - } - break; - - case TILE: - if (planar == PLANARCONFIG_CONTIG) - { - if (!(readContigTilesIntoBuffer(in, read_buff, length, width, tw, tl, spp, bps))) - { - TIFFError("loadImage", "Unable to read contiguous tiles into buffer"); - return (-1); - } - } - else - { - if (!(readSeparateTilesIntoBuffer(in, read_buff, length, width, tw, tl, spp, bps))) - { - TIFFError("loadImage", "Unable to read separate tiles into buffer"); - return (-1); - } - } - break; - default: TIFFError("loadImage", "Unsupported image file format"); - return (-1); - break; - } - if ((dump->infile != NULL) && (dump->level == 2)) - { - dump_info (dump->infile, dump->format, "loadImage", - "Image width %d, length %d, Raw image data, %4d bytes", - width, length, buffsize); - dump_info (dump->infile, dump->format, "", - "Bits per sample %d, Samples per pixel %d", bps, spp); - - for (i = 0; i < length; i++) - dump_buffer(dump->infile, dump->format, 1, scanlinesize, - i, read_buff + (i * scanlinesize)); - } - return (0); - } /* end loadImage */ - -static int correct_orientation(struct image_data *image, unsigned char **work_buff_ptr) - { - uint16 mirror, rotation; - unsigned char *work_buff; - - work_buff = *work_buff_ptr; - if ((image == NULL) || (work_buff == NULL)) - { - TIFFError ("correct_orientatin", "Invalid image or buffer pointer"); - return (-1); - } - - if ((image->adjustments & MIRROR_HORIZ) || (image->adjustments & MIRROR_VERT)) - { - mirror = (uint16)(image->adjustments & MIRROR_BOTH); - if (mirrorImage(image->spp, image->bps, mirror, - image->width, image->length, work_buff)) - { - TIFFError ("correct_orientation", "Unable to mirror image"); - return (-1); - } - } - - if (image->adjustments & ROTATE_ANY) - { - if (image->adjustments & ROTATECW_90) - rotation = (uint16) 90; - else - if (image->adjustments & ROTATECW_180) - rotation = (uint16) 180; - else - if (image->adjustments & ROTATECW_270) - rotation = (uint16) 270; - else - { - TIFFError ("correct_orientation", "Invalid rotation value: %d", - image->adjustments & ROTATE_ANY); - return (-1); - } - - if (rotateImage(rotation, image, &image->width, &image->length, work_buff_ptr)) - { - TIFFError ("correct_orientation", "Unable to rotate image"); - return (-1); - } - image->orientation = ORIENTATION_TOPLEFT; - } - - return (0); - } /* end correct_orientation */ - - -/* Extract multiple zones from an image and combine into a single composite image */ -static int -extractCompositeRegions(struct image_data *image, struct crop_mask *crop, - unsigned char *read_buff, unsigned char *crop_buff) - { - int shift_width, bytes_per_sample, bytes_per_pixel; - uint32 i, trailing_bits, prev_trailing_bits; - uint32 row, first_row, last_row, first_col, last_col; - uint32 src_rowsize, dst_rowsize, src_offset, dst_offset; - uint32 crop_width, crop_length, img_width /*, img_length */; - uint32 prev_length, prev_width, composite_width; - uint16 bps, spp; - uint8 *src, *dst; - tsample_t count, sample = 0; /* Update to extract one or more samples */ - - img_width = image->width; - /* img_length = image->length; */ - bps = image->bps; - spp = image->spp; - count = spp; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if ((bps % 8) == 0) - shift_width = 0; - else - { - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - } - src = read_buff; - dst = crop_buff; - - /* These are setup for adding additional sections */ - prev_width = prev_length = 0; - prev_trailing_bits = trailing_bits = 0; - composite_width = crop->combined_width; - crop->combined_width = 0; - crop->combined_length = 0; - - for (i = 0; i < crop->selections; i++) - { - /* rows, columns, width, length are expressed in pixels */ - first_row = crop->regionlist[i].y1; - last_row = crop->regionlist[i].y2; - first_col = crop->regionlist[i].x1; - last_col = crop->regionlist[i].x2; - - crop_width = last_col - first_col + 1; - crop_length = last_row - first_row + 1; - - /* These should not be needed for composite images */ - crop->regionlist[i].width = crop_width; - crop->regionlist[i].length = crop_length; - crop->regionlist[i].buffptr = crop_buff; - - src_rowsize = ((img_width * bps * spp) + 7) / 8; - dst_rowsize = (((crop_width * bps * count) + 7) / 8); - - switch (crop->edge_ref) - { - default: - case EDGE_TOP: - case EDGE_BOTTOM: - if ((i > 0) && (crop_width != crop->regionlist[i - 1].width)) - { - TIFFError ("extractCompositeRegions", - "Only equal width regions can be combined for -E top or bottom"); - return (1); - } - - crop->combined_width = crop_width; - crop->combined_length += crop_length; - - for (row = first_row; row <= last_row; row++) - { - src_offset = row * src_rowsize; - dst_offset = (row - first_row) * dst_rowsize; - src = read_buff + src_offset; - dst = crop_buff + dst_offset + (prev_length * dst_rowsize); - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, img_width, sample, - spp, bps, count, first_col, - last_col + 1)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 1: if (bps == 1) - { - if (extractContigSamplesShifted8bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - } - else - if (extractContigSamplesShifted16bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 2: if (extractContigSamplesShifted24bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 3: - case 4: - case 5: if (extractContigSamplesShifted32bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - default: TIFFError("extractCompositeRegions", "Unsupported bit depth %d", bps); - return (1); - } - } - prev_length += crop_length; - break; - case EDGE_LEFT: /* splice the pieces of each row together, side by side */ - case EDGE_RIGHT: - if ((i > 0) && (crop_length != crop->regionlist[i - 1].length)) - { - TIFFError ("extractCompositeRegions", - "Only equal length regions can be combined for -E left or right"); - return (1); - } - crop->combined_width += crop_width; - crop->combined_length = crop_length; - dst_rowsize = (((composite_width * bps * count) + 7) / 8); - trailing_bits = (crop_width * bps * count) % 8; - for (row = first_row; row <= last_row; row++) - { - src_offset = row * src_rowsize; - dst_offset = (row - first_row) * dst_rowsize; - src = read_buff + src_offset; - dst = crop_buff + dst_offset + prev_width; - - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 1: if (bps == 1) - { - if (extractContigSamplesShifted8bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - } - else - if (extractContigSamplesShifted16bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 2: if (extractContigSamplesShifted24bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - case 3: - case 4: - case 5: if (extractContigSamplesShifted32bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractCompositeRegions", - "Unable to extract row %d", row); - return (1); - } - break; - default: TIFFError("extractCompositeRegions", "Unsupported bit depth %d", bps); - return (1); - } - } - prev_width += (crop_width * bps * count) / 8; - prev_trailing_bits += trailing_bits; - if (prev_trailing_bits > 7) - prev_trailing_bits-= 8; - break; - } - } - if (crop->combined_width != composite_width) - TIFFError("combineSeparateRegions","Combined width does not match composite width"); - - return (0); - } /* end extractCompositeRegions */ - -/* Copy a single region of input buffer to an output buffer. - * The read functions used copy separate plane data into a buffer - * as interleaved samples rather than separate planes so the same - * logic works to extract regions regardless of the way the data - * are organized in the input file. This function can be used to - * extract one or more samples from the input image by updating the - * parameters for starting sample and number of samples to copy in the - * fifth and eighth arguments of the call to extractContigSamples. - * They would be passed as new elements of the crop_mask struct. - */ - -static int -extractSeparateRegion(struct image_data *image, struct crop_mask *crop, - unsigned char *read_buff, unsigned char *crop_buff, - int region) - { - int shift_width, prev_trailing_bits = 0; - uint32 bytes_per_sample, bytes_per_pixel; - uint32 src_rowsize, dst_rowsize; - uint32 row, first_row, last_row, first_col, last_col; - uint32 src_offset, dst_offset; - uint32 crop_width, crop_length, img_width /*, img_length */; - uint16 bps, spp; - uint8 *src, *dst; - tsample_t count, sample = 0; /* Update to extract more or more samples */ - - img_width = image->width; - /* img_length = image->length; */ - bps = image->bps; - spp = image->spp; - count = spp; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if ((bps % 8) == 0) - shift_width = 0; /* Byte aligned data only */ - else - { - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - } - - /* rows, columns, width, length are expressed in pixels */ - first_row = crop->regionlist[region].y1; - last_row = crop->regionlist[region].y2; - first_col = crop->regionlist[region].x1; - last_col = crop->regionlist[region].x2; - - crop_width = last_col - first_col + 1; - crop_length = last_row - first_row + 1; - - crop->regionlist[region].width = crop_width; - crop->regionlist[region].length = crop_length; - crop->regionlist[region].buffptr = crop_buff; - - src = read_buff; - dst = crop_buff; - src_rowsize = ((img_width * bps * spp) + 7) / 8; - dst_rowsize = (((crop_width * bps * spp) + 7) / 8); - - for (row = first_row; row <= last_row; row++) - { - src_offset = row * src_rowsize; - dst_offset = (row - first_row) * dst_rowsize; - src = read_buff + src_offset; - dst = crop_buff + dst_offset; - - switch (shift_width) - { - case 0: if (extractContigSamplesBytes (src, dst, img_width, sample, - spp, bps, count, first_col, - last_col + 1)) - { - TIFFError("extractSeparateRegion", - "Unable to extract row %d", row); - return (1); - } - break; - case 1: if (bps == 1) - { - if (extractContigSamplesShifted8bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractSeparateRegion", - "Unable to extract row %d", row); - return (1); - } - break; - } - else - if (extractContigSamplesShifted16bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractSeparateRegion", - "Unable to extract row %d", row); - return (1); - } - break; - case 2: if (extractContigSamplesShifted24bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractSeparateRegion", - "Unable to extract row %d", row); - return (1); - } - break; - case 3: - case 4: - case 5: if (extractContigSamplesShifted32bits (src, dst, img_width, - sample, spp, bps, count, - first_col, last_col + 1, - prev_trailing_bits)) - { - TIFFError("extractSeparateRegion", - "Unable to extract row %d", row); - return (1); - } - break; - default: TIFFError("extractSeparateRegion", "Unsupported bit depth %d", bps); - return (1); - } - } - - return (0); - } /* end extractSeparateRegion */ - -static int -extractImageSection(struct image_data *image, struct pageseg *section, - unsigned char *src_buff, unsigned char *sect_buff) - { - unsigned char bytebuff1, bytebuff2; -#ifdef DEVELMODE - /* unsigned char *src, *dst; */ -#endif - - uint32 img_width, img_rowsize; -#ifdef DEVELMODE - uint32 img_length; -#endif - uint32 j, shift1, shift2, trailing_bits; - uint32 row, first_row, last_row, first_col, last_col; - uint32 src_offset, dst_offset, row_offset, col_offset; - uint32 offset1, offset2, full_bytes; - uint32 sect_width; -#ifdef DEVELMODE - uint32 sect_length; -#endif - uint16 bps, spp; - -#ifdef DEVELMODE - int k; - unsigned char bitset; - static char *bitarray = NULL; -#endif - - img_width = image->width; -#ifdef DEVELMODE - img_length = image->length; -#endif - bps = image->bps; - spp = image->spp; - -#ifdef DEVELMODE - /* src = src_buff; */ - /* dst = sect_buff; */ -#endif - src_offset = 0; - dst_offset = 0; - -#ifdef DEVELMODE - if (bitarray == NULL) - { - if ((bitarray = (char *)malloc(img_width)) == NULL) - { - TIFFError ("", "DEBUG: Unable to allocate debugging bitarray"); - return (-1); - } - } -#endif - - /* rows, columns, width, length are expressed in pixels */ - first_row = section->y1; - last_row = section->y2; - first_col = section->x1; - last_col = section->x2; - - sect_width = last_col - first_col + 1; -#ifdef DEVELMODE - sect_length = last_row - first_row + 1; -#endif - img_rowsize = ((img_width * bps + 7) / 8) * spp; - full_bytes = (sect_width * spp * bps) / 8; /* number of COMPLETE bytes per row in section */ - trailing_bits = (sect_width * bps) % 8; - -#ifdef DEVELMODE - TIFFError ("", "First row: %d, last row: %d, First col: %d, last col: %d\n", - first_row, last_row, first_col, last_col); - TIFFError ("", "Image width: %d, Image length: %d, bps: %d, spp: %d\n", - img_width, img_length, bps, spp); - TIFFError ("", "Sect width: %d, Sect length: %d, full bytes: %d trailing bits %d\n", - sect_width, sect_length, full_bytes, trailing_bits); -#endif - - if ((bps % 8) == 0) - { - col_offset = first_col * spp * bps / 8; - for (row = first_row; row <= last_row; row++) - { - /* row_offset = row * img_width * spp * bps / 8; */ - row_offset = row * img_rowsize; - src_offset = row_offset + col_offset; - -#ifdef DEVELMODE - TIFFError ("", "Src offset: %8d, Dst offset: %8d", src_offset, dst_offset); -#endif - _TIFFmemcpy (sect_buff + dst_offset, src_buff + src_offset, full_bytes); - dst_offset += full_bytes; - } - } - else - { /* bps != 8 */ - shift1 = spp * ((first_col * bps) % 8); - shift2 = spp * ((last_col * bps) % 8); - for (row = first_row; row <= last_row; row++) - { - /* pull out the first byte */ - row_offset = row * img_rowsize; - offset1 = row_offset + (first_col * bps / 8); - offset2 = row_offset + (last_col * bps / 8); - -#ifdef DEVELMODE - for (j = 0, k = 7; j < 8; j++, k--) - { - bitset = *(src_buff + offset1) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - sprintf(&bitarray[8], " "); - sprintf(&bitarray[9], " "); - for (j = 10, k = 7; j < 18; j++, k--) - { - bitset = *(src_buff + offset2) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - bitarray[18] = '\0'; - TIFFError ("", "Row: %3d Offset1: %d, Shift1: %d, Offset2: %d, Shift2: %d\n", - row, offset1, shift1, offset2, shift2); -#endif - - bytebuff1 = bytebuff2 = 0; - if (shift1 == 0) /* the region is byte and sample alligned */ - { - _TIFFmemcpy (sect_buff + dst_offset, src_buff + offset1, full_bytes); - -#ifdef DEVELMODE - TIFFError ("", " Alligned data src offset1: %8d, Dst offset: %8d\n", offset1, dst_offset); - sprintf(&bitarray[18], "\n"); - sprintf(&bitarray[19], "\t"); - for (j = 20, k = 7; j < 28; j++, k--) - { - bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - bitarray[28] = ' '; - bitarray[29] = ' '; -#endif - dst_offset += full_bytes; - - if (trailing_bits != 0) - { - bytebuff2 = src_buff[offset2] & ((unsigned char)255 << (7 - shift2)); - sect_buff[dst_offset] = bytebuff2; -#ifdef DEVELMODE - TIFFError ("", " Trailing bits src offset: %8d, Dst offset: %8d\n", - offset2, dst_offset); - for (j = 30, k = 7; j < 38; j++, k--) - { - bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - bitarray[38] = '\0'; - TIFFError ("", "\tFirst and last bytes before and after masking:\n\t%s\n\n", bitarray); -#endif - dst_offset++; - } - } - else /* each destination byte will have to be built from two source bytes*/ - { -#ifdef DEVELMODE - TIFFError ("", " Unalligned data src offset: %8d, Dst offset: %8d\n", offset1 , dst_offset); -#endif - for (j = 0; j <= full_bytes; j++) - { - bytebuff1 = src_buff[offset1 + j] & ((unsigned char)255 >> shift1); - bytebuff2 = src_buff[offset1 + j + 1] & ((unsigned char)255 << (7 - shift1)); - sect_buff[dst_offset + j] = (bytebuff1 << shift1) | (bytebuff2 >> (8 - shift1)); - } -#ifdef DEVELMODE - sprintf(&bitarray[18], "\n"); - sprintf(&bitarray[19], "\t"); - for (j = 20, k = 7; j < 28; j++, k--) - { - bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - bitarray[28] = ' '; - bitarray[29] = ' '; -#endif - dst_offset += full_bytes; - - if (trailing_bits != 0) - { -#ifdef DEVELMODE - TIFFError ("", " Trailing bits src offset: %8d, Dst offset: %8d\n", offset1 + full_bytes, dst_offset); -#endif - if (shift2 > shift1) - { - bytebuff1 = src_buff[offset1 + full_bytes] & ((unsigned char)255 << (7 - shift2)); - bytebuff2 = bytebuff1 & ((unsigned char)255 << shift1); - sect_buff[dst_offset] = bytebuff2; -#ifdef DEVELMODE - TIFFError ("", " Shift2 > Shift1\n"); -#endif - } - else - { - if (shift2 < shift1) - { - bytebuff2 = ((unsigned char)255 << (shift1 - shift2 - 1)); - sect_buff[dst_offset] &= bytebuff2; -#ifdef DEVELMODE - TIFFError ("", " Shift2 < Shift1\n"); -#endif - } -#ifdef DEVELMODE - else - TIFFError ("", " Shift2 == Shift1\n"); -#endif - } - } -#ifdef DEVELMODE - sprintf(&bitarray[28], " "); - sprintf(&bitarray[29], " "); - for (j = 30, k = 7; j < 38; j++, k--) - { - bitset = *(sect_buff + dst_offset) & (((unsigned char)1 << k)) ? 1 : 0; - sprintf(&bitarray[j], (bitset) ? "1" : "0"); - } - bitarray[38] = '\0'; - TIFFError ("", "\tFirst and last bytes before and after masking:\n\t%s\n\n", bitarray); -#endif - dst_offset++; - } - } - } - - return (0); - } /* end extractImageSection */ - -static int -writeSelections(TIFF *in, TIFF **out, struct crop_mask *crop, - struct image_data *image, struct dump_opts *dump, - struct buffinfo seg_buffs[], char *mp, char *filename, - unsigned int *page, unsigned int total_pages) - { - int i, page_count; - int autoindex = 0; - unsigned char *crop_buff = NULL; - - /* Where we open a new file depends on the export mode */ - switch (crop->exp_mode) - { - case ONE_FILE_COMPOSITE: /* Regions combined into single image */ - autoindex = 0; - crop_buff = seg_buffs[0].buffer; - if (update_output_file (out, mp, autoindex, filename, page)) - return (1); - page_count = total_pages; - if (writeCroppedImage(in, *out, image, dump, - crop->combined_width, - crop->combined_length, - crop_buff, *page, total_pages)) - { - TIFFError("writeRegions", "Unable to write new image"); - return (-1); - } - break; - case ONE_FILE_SEPARATED: /* Regions as separated images */ - autoindex = 0; - if (update_output_file (out, mp, autoindex, filename, page)) - return (1); - page_count = crop->selections * total_pages; - for (i = 0; i < crop->selections; i++) - { - crop_buff = seg_buffs[i].buffer; - if (writeCroppedImage(in, *out, image, dump, - crop->regionlist[i].width, - crop->regionlist[i].length, - crop_buff, *page, page_count)) - { - TIFFError("writeRegions", "Unable to write new image"); - return (-1); - } - } - break; - case FILE_PER_IMAGE_COMPOSITE: /* Regions as composite image */ - autoindex = 1; - if (update_output_file (out, mp, autoindex, filename, page)) - return (1); - - crop_buff = seg_buffs[0].buffer; - if (writeCroppedImage(in, *out, image, dump, - crop->combined_width, - crop->combined_length, - crop_buff, *page, total_pages)) - { - TIFFError("writeRegions", "Unable to write new image"); - return (-1); - } - break; - case FILE_PER_IMAGE_SEPARATED: /* Regions as separated images */ - autoindex = 1; - page_count = crop->selections; - if (update_output_file (out, mp, autoindex, filename, page)) - return (1); - - for (i = 0; i < crop->selections; i++) - { - crop_buff = seg_buffs[i].buffer; - /* Write the current region to the current file */ - if (writeCroppedImage(in, *out, image, dump, - crop->regionlist[i].width, - crop->regionlist[i].length, - crop_buff, *page, page_count)) - { - TIFFError("writeRegions", "Unable to write new image"); - return (-1); - } - } - break; - case FILE_PER_SELECTION: - autoindex = 1; - page_count = 1; - for (i = 0; i < crop->selections; i++) - { - if (update_output_file (out, mp, autoindex, filename, page)) - return (1); - - crop_buff = seg_buffs[i].buffer; - /* Write the current region to the current file */ - if (writeCroppedImage(in, *out, image, dump, - crop->regionlist[i].width, - crop->regionlist[i].length, - crop_buff, *page, page_count)) - { - TIFFError("writeRegions", "Unable to write new image"); - return (-1); - } - } - break; - default: return (1); - } - - return (0); - } /* end writeRegions */ - -static int -writeImageSections(TIFF *in, TIFF *out, struct image_data *image, - struct pagedef *page, struct pageseg *sections, - struct dump_opts * dump, unsigned char *src_buff, - unsigned char **sect_buff_ptr) - { - double hres, vres; - uint32 i, k, width, length, sectsize; - unsigned char *sect_buff = *sect_buff_ptr; - - hres = page->hres; - vres = page->vres; - - k = page->cols * page->rows; - if ((k < 1) || (k > MAX_SECTIONS)) - { - TIFFError("writeImageSections", - "%d Rows and Columns exceed maximum sections\nIncrease resolution or reduce sections", k); - return (-1); - } - - for (i = 0; i < k; i++) - { - width = sections[i].x2 - sections[i].x1 + 1; - length = sections[i].y2 - sections[i].y1 + 1; - sectsize = (uint32) - ceil((width * image->bps + 7) / (double)8) * image->spp * length; - /* allocate a buffer if we don't have one already */ - if (createImageSection(sectsize, sect_buff_ptr)) - { - TIFFError("writeImageSections", "Unable to allocate section buffer"); - exit (-1); - } - sect_buff = *sect_buff_ptr; - - if (extractImageSection (image, §ions[i], src_buff, sect_buff)) - { - TIFFError("writeImageSections", "Unable to extract image sections"); - exit (-1); - } - - /* call the write routine here instead of outside the loop */ - if (writeSingleSection(in, out, image, dump, width, length, hres, vres, sect_buff)) - { - TIFFError("writeImageSections", "Unable to write image section"); - exit (-1); - } - } - - return (0); - } /* end writeImageSections */ - -/* Code in this function is heavily indebted to code in tiffcp - * with modifications by Richard Nolde to handle orientation correctly. - * It will have to be updated significantly if support is added to - * extract one or more samples from original image since the - * original code assumes we are always copying all samples. - */ -static int -writeSingleSection(TIFF *in, TIFF *out, struct image_data *image, - struct dump_opts *dump, uint32 width, uint32 length, - double hres, double vres, - unsigned char *sect_buff) - { - uint16 bps, spp; - uint16 input_compression, input_photometric; - uint16 input_planar; - struct cpTag* p; - - /* Calling this seems to reset the compression mode on the TIFF *in file. - TIFFGetField(in, TIFFTAG_JPEGCOLORMODE, &input_jpeg_colormode); - */ - input_compression = image->compression; - input_photometric = image->photometric; - - spp = image->spp; - bps = image->bps; - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, length); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bps); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp); - -#ifdef DEBUG2 - TIFFError("writeSingleSection", "Input compression: %s", - (input_compression == COMPRESSION_OJPEG) ? "Old Jpeg" : - ((input_compression == COMPRESSION_JPEG) ? "New Jpeg" : "Non Jpeg")); -#endif - /* This is the global variable compression which is set - * if the user has specified a command line option for - * a compression option. Should be passed around in one - * of the parameters instead of as a global. If no user - * option specified it will still be (uint16) -1. */ - if (compression != (uint16)-1) - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - else - { /* OJPEG is no longer supported for writing so upgrade to JPEG */ - if (input_compression == COMPRESSION_OJPEG) - { - compression = COMPRESSION_JPEG; - jpegcolormode = JPEGCOLORMODE_RAW; - TIFFSetField(out, TIFFTAG_COMPRESSION, COMPRESSION_JPEG); - } - else /* Use the compression from the input file */ - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - } - - if (compression == COMPRESSION_JPEG) - { - if ((input_photometric == PHOTOMETRIC_PALETTE) || /* color map indexed */ - (input_photometric == PHOTOMETRIC_MASK)) /* holdout mask */ - { - TIFFError ("writeSingleSection", - "JPEG compression cannot be used with %s image data", - (input_photometric == PHOTOMETRIC_PALETTE) ? - "palette" : "mask"); - return (-1); - } - if ((input_photometric == PHOTOMETRIC_RGB) && - (jpegcolormode == JPEGCOLORMODE_RGB)) - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - else - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric); - } - else - { - if (compression == COMPRESSION_SGILOG || compression == COMPRESSION_SGILOG24) - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ? - PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV); - else - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, image->photometric); - } - -#ifdef DEBUG2 - TIFFError("writeSingleSection", "Input photometric: %s", - (input_photometric == PHOTOMETRIC_RGB) ? "RGB" : - ((input_photometric == PHOTOMETRIC_YCBCR) ? "YCbCr" : "Not RGB or YCbCr")); -#endif - - if (((input_photometric == PHOTOMETRIC_LOGL) || - (input_photometric == PHOTOMETRIC_LOGLUV)) && - ((compression != COMPRESSION_SGILOG) && - (compression != COMPRESSION_SGILOG24))) - { - TIFFError("writeSingleSection", - "LogL and LogLuv source data require SGI_LOG or SGI_LOG24 compression"); - return (-1); - } - - if (fillorder != 0) - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - else - CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT); - - /* The loadimage function reads input orientation and sets - * image->orientation. The correct_image_orientation function - * applies the required rotation and mirror operations to - * present the data in TOPLEFT orientation and updates - * image->orientation if any transforms are performed, - * as per EXIF standard. - */ - TIFFSetField(out, TIFFTAG_ORIENTATION, image->orientation); - - /* - * Choose tiles/strip for the output image according to - * the command line arguments (-tiles, -strips) and the - * structure of the input image. - */ - if (outtiled == -1) - outtiled = TIFFIsTiled(in); - if (outtiled) { - /* - * Setup output file's tile width&height. If either - * is not specified, use either the value from the - * input image or, if nothing is defined, use the - * library default. - */ - if (tilewidth == (uint32) 0) - TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth); - if (tilelength == (uint32) 0) - TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength); - - if (tilewidth == 0 || tilelength == 0) - TIFFDefaultTileSize(out, &tilewidth, &tilelength); - TIFFDefaultTileSize(out, &tilewidth, &tilelength); - TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth); - TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength); - } else { - /* - * RowsPerStrip is left unspecified: use either the - * value from the input image or, if nothing is defined, - * use the library default. - */ - if (rowsperstrip == (uint32) 0) - { - if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip)) - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - if (compression != COMPRESSION_JPEG) - { - if (rowsperstrip > length) - rowsperstrip = length; - } - } - else - if (rowsperstrip == (uint32) -1) - rowsperstrip = length; - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - } - - TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &input_planar); - if (config != (uint16) -1) - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - else - CopyField(TIFFTAG_PLANARCONFIG, config); - if (spp <= 4) - CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT); - CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT); - -/* SMinSampleValue & SMaxSampleValue */ - switch (compression) { - /* These are references to GLOBAL variables set by defaults - * and /or the compression flag - */ - case COMPRESSION_JPEG: - if (((bps % 8) == 0) || ((bps % 12) == 0)) - { - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } - else - { - TIFFError("writeSingleSection", - "JPEG compression requires 8 or 12 bits per sample"); - return (-1); - } - break; - case COMPRESSION_LZW: - case COMPRESSION_ADOBE_DEFLATE: - case COMPRESSION_DEFLATE: - if (predictor != (uint16)-1) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - else - CopyField(TIFFTAG_PREDICTOR, predictor); - break; - case COMPRESSION_CCITTFAX3: - case COMPRESSION_CCITTFAX4: - if (compression == COMPRESSION_CCITTFAX3) { - if (g3opts != (uint32) -1) - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts); - else - CopyField(TIFFTAG_GROUP3OPTIONS, g3opts); - } else - CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG); - CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG); - CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII); - break; - } - { uint32 len32; - void** data; - if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data)) - TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data); - } - { uint16 ninks; - const char* inknames; - if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) { - TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks); - if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) { - int inknameslen = strlen(inknames) + 1; - const char* cp = inknames; - while (ninks > 1) { - cp = strchr(cp, '\0'); - if (cp) { - cp++; - inknameslen += (strlen(cp) + 1); - } - ninks--; - } - TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames); - } - } - } - { - unsigned short pg0, pg1; - if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) { - if (pageNum < 0) /* only one input file */ - TIFFSetField(out, TIFFTAG_PAGENUMBER, pg0, pg1); - else - TIFFSetField(out, TIFFTAG_PAGENUMBER, pageNum++, 0); - } - } - - for (p = tags; p < &tags[NTAGS]; p++) - CopyTag(p->tag, p->count, p->type); - - /* Update these since they are overwritten from input res by loop above */ - TIFFSetField(out, TIFFTAG_XRESOLUTION, (float)hres); - TIFFSetField(out, TIFFTAG_YRESOLUTION, (float)vres); - - /* Compute the tile or strip dimensions and write to disk */ - if (outtiled) - { - if (config == PLANARCONFIG_CONTIG) - writeBufferToContigTiles (out, sect_buff, length, width, spp, dump); - else - writeBufferToSeparateTiles (out, sect_buff, length, width, spp, dump); - } - else - { - if (config == PLANARCONFIG_CONTIG) - writeBufferToContigStrips (out, sect_buff, length); - else - writeBufferToSeparateStrips(out, sect_buff, length, width, spp, dump); - } - - if (!TIFFWriteDirectory(out)) - { - TIFFClose(out); - return (-1); - } - - return (0); - } /* end writeSingleSection */ - - -/* Create a buffer to write one section at a time */ -static int -createImageSection(uint32 sectsize, unsigned char **sect_buff_ptr) - { - unsigned char *sect_buff = NULL; - unsigned char *new_buff = NULL; - static uint32 prev_sectsize = 0; - - sect_buff = *sect_buff_ptr; - - if (!sect_buff) - { - sect_buff = (unsigned char *)_TIFFmalloc(sectsize); - *sect_buff_ptr = sect_buff; - _TIFFmemset(sect_buff, 0, sectsize); - } - else - { - if (prev_sectsize < sectsize) - { - new_buff = _TIFFrealloc(sect_buff, sectsize); - if (!new_buff) - { - free (sect_buff); - sect_buff = (unsigned char *)_TIFFmalloc(sectsize); - } - else - sect_buff = new_buff; - - _TIFFmemset(sect_buff, 0, sectsize); - } - } - - if (!sect_buff) - { - TIFFError("createImageSection", "Unable to allocate/reallocate section buffer"); - return (-1); - } - prev_sectsize = sectsize; - *sect_buff_ptr = sect_buff; - - return (0); - } /* end createImageSection */ - - -/* Process selections defined by regions, zones, margins, or fixed sized areas */ -static int -processCropSelections(struct image_data *image, struct crop_mask *crop, - unsigned char **read_buff_ptr, struct buffinfo seg_buffs[]) - { - int i; - uint32 width, length, total_width, total_length; - tsize_t cropsize; - unsigned char *crop_buff = NULL; - unsigned char *read_buff = NULL; - unsigned char *next_buff = NULL; - tsize_t prev_cropsize = 0; - - read_buff = *read_buff_ptr; - - if (crop->img_mode == COMPOSITE_IMAGES) - { - cropsize = crop->bufftotal; - crop_buff = seg_buffs[0].buffer; - if (!crop_buff) - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - else - { - prev_cropsize = seg_buffs[0].size; - if (prev_cropsize < cropsize) - { - next_buff = _TIFFrealloc(crop_buff, cropsize); - if (! next_buff) - { - _TIFFfree (crop_buff); - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - } - else - crop_buff = next_buff; - } - } - - if (!crop_buff) - { - TIFFError("processCropSelections", "Unable to allocate/reallocate crop buffer"); - return (-1); - } - - _TIFFmemset(crop_buff, 0, cropsize); - seg_buffs[0].buffer = crop_buff; - seg_buffs[0].size = cropsize; - - /* Checks for matching width or length as required */ - if (extractCompositeRegions(image, crop, read_buff, crop_buff) != 0) - return (1); - - if (crop->crop_mode & CROP_INVERT) - { - switch (crop->photometric) - { - /* Just change the interpretation */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - image->photometric = crop->photometric; - break; - case INVERT_DATA_ONLY: - case INVERT_DATA_AND_TAG: - if (invertImage(image->photometric, image->spp, image->bps, - crop->combined_width, crop->combined_length, crop_buff)) - { - TIFFError("processCropSelections", - "Failed to invert colorspace for composite regions"); - return (-1); - } - if (crop->photometric == INVERT_DATA_AND_TAG) - { - switch (image->photometric) - { - case PHOTOMETRIC_MINISWHITE: - image->photometric = PHOTOMETRIC_MINISBLACK; - break; - case PHOTOMETRIC_MINISBLACK: - image->photometric = PHOTOMETRIC_MINISWHITE; - break; - default: - break; - } - } - break; - default: break; - } - } - - /* Mirror and Rotate will not work with multiple regions unless they are the same width */ - if (crop->crop_mode & CROP_MIRROR) - { - if (mirrorImage(image->spp, image->bps, crop->mirror, - crop->combined_width, crop->combined_length, crop_buff)) - { - TIFFError("processCropSelections", "Failed to mirror composite regions %s", - (crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically"); - return (-1); - } - } - - if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */ - { - if (rotateImage(crop->rotation, image, &crop->combined_width, - &crop->combined_length, &crop_buff)) - { - TIFFError("processCropSelections", - "Failed to rotate composite regions by %d degrees", crop->rotation); - return (-1); - } - seg_buffs[0].buffer = crop_buff; - seg_buffs[0].size = (((crop->combined_width * image->bps + 7 ) / 8) - * image->spp) * crop->combined_length; - } - } - else /* Separated Images */ - { - total_width = total_length = 0; - for (i = 0; i < crop->selections; i++) - { - cropsize = crop->bufftotal; - crop_buff = seg_buffs[i].buffer; - if (!crop_buff) - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - else - { - prev_cropsize = seg_buffs[0].size; - if (prev_cropsize < cropsize) - { - next_buff = _TIFFrealloc(crop_buff, cropsize); - if (! next_buff) - { - _TIFFfree (crop_buff); - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - } - else - crop_buff = next_buff; - } - } - - if (!crop_buff) - { - TIFFError("processCropSelections", "Unable to allocate/reallocate crop buffer"); - return (-1); - } - - _TIFFmemset(crop_buff, 0, cropsize); - seg_buffs[i].buffer = crop_buff; - seg_buffs[i].size = cropsize; - - if (extractSeparateRegion(image, crop, read_buff, crop_buff, i)) - { - TIFFError("processCropSelections", "Unable to extract cropped region %d from image", i); - return (-1); - } - - width = crop->regionlist[i].width; - length = crop->regionlist[i].length; - - if (crop->crop_mode & CROP_INVERT) - { - switch (crop->photometric) - { - /* Just change the interpretation */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - image->photometric = crop->photometric; - break; - case INVERT_DATA_ONLY: - case INVERT_DATA_AND_TAG: - if (invertImage(image->photometric, image->spp, image->bps, - width, length, crop_buff)) - { - TIFFError("processCropSelections", - "Failed to invert colorspace for region"); - return (-1); - } - if (crop->photometric == INVERT_DATA_AND_TAG) - { - switch (image->photometric) - { - case PHOTOMETRIC_MINISWHITE: - image->photometric = PHOTOMETRIC_MINISBLACK; - break; - case PHOTOMETRIC_MINISBLACK: - image->photometric = PHOTOMETRIC_MINISWHITE; - break; - default: - break; - } - } - break; - default: break; - } - } - - if (crop->crop_mode & CROP_MIRROR) - { - if (mirrorImage(image->spp, image->bps, crop->mirror, - width, length, crop_buff)) - { - TIFFError("processCropSelections", "Failed to mirror crop region %s", - (crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically"); - return (-1); - } - } - - if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */ - { - if (rotateImage(crop->rotation, image, &crop->regionlist[i].width, - &crop->regionlist[i].length, &crop_buff)) - { - TIFFError("processCropSelections", - "Failed to rotate crop region by %d degrees", crop->rotation); - return (-1); - } - total_width += crop->regionlist[i].width; - total_length += crop->regionlist[i].length; - crop->combined_width = total_width; - crop->combined_length = total_length; - seg_buffs[i].buffer = crop_buff; - seg_buffs[i].size = (((crop->regionlist[i].width * image->bps + 7 ) / 8) - * image->spp) * crop->regionlist[i].length; - } - } - } - return (0); - } /* end processCropSelections */ - -/* Copy the crop section of the data from the current image into a buffer - * and adjust the IFD values to reflect the new size. If no cropping is - * required, use the origial read buffer as the crop buffer. - * - * There is quite a bit of redundancy between this routine and the more - * specialized processCropSelections, but this provides - * the most optimized path when no Zones or Regions are required. - */ -static int -createCroppedImage(struct image_data *image, struct crop_mask *crop, - unsigned char **read_buff_ptr, unsigned char **crop_buff_ptr) - { - tsize_t cropsize; - unsigned char *read_buff = NULL; - unsigned char *crop_buff = NULL; - unsigned char *new_buff = NULL; - static tsize_t prev_cropsize = 0; - - read_buff = *read_buff_ptr; - - /* process full image, no crop buffer needed */ - crop_buff = read_buff; - *crop_buff_ptr = read_buff; - crop->combined_width = image->width; - crop->combined_length = image->length; - - cropsize = crop->bufftotal; - crop_buff = *crop_buff_ptr; - if (!crop_buff) - { - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - *crop_buff_ptr = crop_buff; - _TIFFmemset(crop_buff, 0, cropsize); - prev_cropsize = cropsize; - } - else - { - if (prev_cropsize < cropsize) - { - new_buff = _TIFFrealloc(crop_buff, cropsize); - if (!new_buff) - { - free (crop_buff); - crop_buff = (unsigned char *)_TIFFmalloc(cropsize); - } - else - crop_buff = new_buff; - _TIFFmemset(crop_buff, 0, cropsize); - } - } - - if (!crop_buff) - { - TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer"); - return (-1); - } - *crop_buff_ptr = crop_buff; - - if (crop->crop_mode & CROP_INVERT) - { - switch (crop->photometric) - { - /* Just change the interpretation */ - case PHOTOMETRIC_MINISWHITE: - case PHOTOMETRIC_MINISBLACK: - image->photometric = crop->photometric; - break; - case INVERT_DATA_ONLY: - case INVERT_DATA_AND_TAG: - if (invertImage(image->photometric, image->spp, image->bps, - crop->combined_width, crop->combined_length, crop_buff)) - { - TIFFError("createCroppedImage", - "Failed to invert colorspace for image or cropped selection"); - return (-1); - } - if (crop->photometric == INVERT_DATA_AND_TAG) - { - switch (image->photometric) - { - case PHOTOMETRIC_MINISWHITE: - image->photometric = PHOTOMETRIC_MINISBLACK; - break; - case PHOTOMETRIC_MINISBLACK: - image->photometric = PHOTOMETRIC_MINISWHITE; - break; - default: - break; - } - } - break; - default: break; - } - } - - if (crop->crop_mode & CROP_MIRROR) - { - if (mirrorImage(image->spp, image->bps, crop->mirror, - crop->combined_width, crop->combined_length, crop_buff)) - { - TIFFError("createCroppedImage", "Failed to mirror image or cropped selection %s", - (crop->rotation == MIRROR_HORIZ) ? "horizontally" : "vertically"); - return (-1); - } - } - - if (crop->crop_mode & CROP_ROTATE) /* rotate should be last as it can reallocate the buffer */ - { - if (rotateImage(crop->rotation, image, &crop->combined_width, - &crop->combined_length, crop_buff_ptr)) - { - TIFFError("createCroppedImage", - "Failed to rotate image or cropped selection by %d degrees", crop->rotation); - return (-1); - } - } - - if (crop_buff == read_buff) /* we used the read buffer for the crop buffer */ - *read_buff_ptr = NULL; /* so we don't try to free it later */ - - return (0); - } /* end createCroppedImage */ - - -/* Code in this function is heavily indebted to code in tiffcp - * with modifications by Richard Nolde to handle orientation correctly. - * It will have to be updated significantly if support is added to - * extract one or more samples from original image since the - * original code assumes we are always copying all samples. - * Use of global variables for config, compression and others - * should be replaced by addition to the crop_mask struct (which - * will be renamed to proc_opts indicating that is controlls - * user supplied processing options, not just cropping) and - * then passed in as an argument. - */ -static int -writeCroppedImage(TIFF *in, TIFF *out, struct image_data *image, - struct dump_opts *dump, uint32 width, uint32 length, - unsigned char *crop_buff, int pagenum, int total_pages) - { - uint16 bps, spp; - uint16 input_compression, input_photometric; - uint16 input_planar; - struct cpTag* p; - - input_compression = image->compression; - input_photometric = image->photometric; - spp = image->spp; - bps = image->bps; - - TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, length); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, bps); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, spp); - -#ifdef DEBUG2 - TIFFError("writeCroppedImage", "Input compression: %s", - (input_compression == COMPRESSION_OJPEG) ? "Old Jpeg" : - ((input_compression == COMPRESSION_JPEG) ? "New Jpeg" : "Non Jpeg")); -#endif - - if (compression != (uint16)-1) - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - else - { - if (input_compression == COMPRESSION_OJPEG) - { - compression = COMPRESSION_JPEG; - jpegcolormode = JPEGCOLORMODE_RAW; - TIFFSetField(out, TIFFTAG_COMPRESSION, COMPRESSION_JPEG); - } - else - CopyField(TIFFTAG_COMPRESSION, compression); - } - - if (compression == COMPRESSION_JPEG) - { - if ((input_photometric == PHOTOMETRIC_PALETTE) || /* color map indexed */ - (input_photometric == PHOTOMETRIC_MASK)) /* $holdout mask */ - { - TIFFError ("writeCroppedImage", - "JPEG compression cannot be used with %s image data", - (input_photometric == PHOTOMETRIC_PALETTE) ? - "palette" : "mask"); - return (-1); - } - if ((input_photometric == PHOTOMETRIC_RGB) && - (jpegcolormode == JPEGCOLORMODE_RGB)) - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR); - else - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, input_photometric); - } - else - { - if (compression == COMPRESSION_SGILOG || compression == COMPRESSION_SGILOG24) - { - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ? - PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV); - } - else - { - if (input_compression == COMPRESSION_SGILOG || - input_compression == COMPRESSION_SGILOG24) - { - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, spp == 1 ? - PHOTOMETRIC_LOGL : PHOTOMETRIC_LOGLUV); - } - else - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, image->photometric); - } - } - - if (((input_photometric == PHOTOMETRIC_LOGL) || - (input_photometric == PHOTOMETRIC_LOGLUV)) && - ((compression != COMPRESSION_SGILOG) && - (compression != COMPRESSION_SGILOG24))) - { - TIFFError("writeCroppedImage", - "LogL and LogLuv source data require SGI_LOG or SGI_LOG24 compression"); - return (-1); - } - - if (fillorder != 0) - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - else - CopyTag(TIFFTAG_FILLORDER, 1, TIFF_SHORT); - - /* The loadimage function reads input orientation and sets - * image->orientation. The correct_image_orientation function - * applies the required rotation and mirror operations to - * present the data in TOPLEFT orientation and updates - * image->orientation if any transforms are performed, - * as per EXIF standard. - */ - TIFFSetField(out, TIFFTAG_ORIENTATION, image->orientation); - - /* - * Choose tiles/strip for the output image according to - * the command line arguments (-tiles, -strips) and the - * structure of the input image. - */ - if (outtiled == -1) - outtiled = TIFFIsTiled(in); - if (outtiled) { - /* - * Setup output file's tile width&height. If either - * is not specified, use either the value from the - * input image or, if nothing is defined, use the - * library default. - */ - if (tilewidth == (uint32) 0) - TIFFGetField(in, TIFFTAG_TILEWIDTH, &tilewidth); - if (tilelength == (uint32) 0) - TIFFGetField(in, TIFFTAG_TILELENGTH, &tilelength); - - if (tilewidth == 0 || tilelength == 0) - TIFFDefaultTileSize(out, &tilewidth, &tilelength); - TIFFSetField(out, TIFFTAG_TILEWIDTH, tilewidth); - TIFFSetField(out, TIFFTAG_TILELENGTH, tilelength); - } else { - /* - * RowsPerStrip is left unspecified: use either the - * value from the input image or, if nothing is defined, - * use the library default. - */ - if (rowsperstrip == (uint32) 0) - { - if (!TIFFGetField(in, TIFFTAG_ROWSPERSTRIP, &rowsperstrip)) - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - if (compression != COMPRESSION_JPEG) - { - if (rowsperstrip > length) - rowsperstrip = length; - } - } - else - if (rowsperstrip == (uint32) -1) - rowsperstrip = length; - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - } - - TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &input_planar); - if (config != (uint16) -1) - TIFFSetField(out, TIFFTAG_PLANARCONFIG, config); - else - CopyField(TIFFTAG_PLANARCONFIG, config); - if (spp <= 4) - CopyTag(TIFFTAG_TRANSFERFUNCTION, 4, TIFF_SHORT); - CopyTag(TIFFTAG_COLORMAP, 4, TIFF_SHORT); - -/* SMinSampleValue & SMaxSampleValue */ - switch (compression) { - case COMPRESSION_JPEG: - if (((bps % 8) == 0) || ((bps % 12) == 0)) - { - TIFFSetField(out, TIFFTAG_JPEGQUALITY, quality); - TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB); - } - else - { - TIFFError("writeCroppedImage", - "JPEG compression requires 8 or 12 bits per sample"); - return (-1); - } - break; - case COMPRESSION_LZW: - case COMPRESSION_ADOBE_DEFLATE: - case COMPRESSION_DEFLATE: - if (predictor != (uint16)-1) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - else - CopyField(TIFFTAG_PREDICTOR, predictor); - break; - case COMPRESSION_CCITTFAX3: - case COMPRESSION_CCITTFAX4: - if (bps != 1) - { - TIFFError("writeCroppedImage", - "Group 3/4 compression is not usable with bps > 1"); - return (-1); - } - if (compression == COMPRESSION_CCITTFAX3) { - if (g3opts != (uint32) -1) - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, g3opts); - else - CopyField(TIFFTAG_GROUP3OPTIONS, g3opts); - } else - CopyTag(TIFFTAG_GROUP4OPTIONS, 1, TIFF_LONG); - CopyTag(TIFFTAG_BADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_CLEANFAXDATA, 1, TIFF_LONG); - CopyTag(TIFFTAG_CONSECUTIVEBADFAXLINES, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVPARAMS, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXRECVTIME, 1, TIFF_LONG); - CopyTag(TIFFTAG_FAXSUBADDRESS, 1, TIFF_ASCII); - break; - case COMPRESSION_NONE: - break; - default: break; - } - { uint32 len32; - void** data; - if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &len32, &data)) - TIFFSetField(out, TIFFTAG_ICCPROFILE, len32, data); - } - { uint16 ninks; - const char* inknames; - if (TIFFGetField(in, TIFFTAG_NUMBEROFINKS, &ninks)) { - TIFFSetField(out, TIFFTAG_NUMBEROFINKS, ninks); - if (TIFFGetField(in, TIFFTAG_INKNAMES, &inknames)) { - int inknameslen = strlen(inknames) + 1; - const char* cp = inknames; - while (ninks > 1) { - cp = strchr(cp, '\0'); - if (cp) { - cp++; - inknameslen += (strlen(cp) + 1); - } - ninks--; - } - TIFFSetField(out, TIFFTAG_INKNAMES, inknameslen, inknames); - } - } - } - { - unsigned short pg0, pg1; - if (TIFFGetField(in, TIFFTAG_PAGENUMBER, &pg0, &pg1)) { - TIFFSetField(out, TIFFTAG_PAGENUMBER, pagenum, total_pages); - } - } - - for (p = tags; p < &tags[NTAGS]; p++) - CopyTag(p->tag, p->count, p->type); - - /* Compute the tile or strip dimensions and write to disk */ - if (outtiled) - { - if (config == PLANARCONFIG_CONTIG) - { - if (writeBufferToContigTiles (out, crop_buff, length, width, spp, dump)) - TIFFError("","Unable to write contiguous tile data for page %d", pagenum); - } - else - { - if (writeBufferToSeparateTiles (out, crop_buff, length, width, spp, dump)) - TIFFError("","Unable to write separate tile data for page %d", pagenum); - } - } - else - { - if (config == PLANARCONFIG_CONTIG) - { - if (writeBufferToContigStrips (out, crop_buff, length)) - TIFFError("","Unable to write contiguous strip data for page %d", pagenum); - } - else - { - if (writeBufferToSeparateStrips(out, crop_buff, length, width, spp, dump)) - TIFFError("","Unable to write separate strip data for page %d", pagenum); - } - } - - if (!TIFFWriteDirectory(out)) - { - TIFFError("","Failed to write IFD for page number %d", pagenum); - TIFFClose(out); - return (-1); - } - - return (0); - } /* end writeCroppedImage */ - -static int -rotateContigSamples8bits(uint16 rotation, uint16 spp, uint16 bps, uint32 width, - uint32 length, uint32 col, uint8 *src, uint8 *dst) - { - int ready_bits = 0; - uint32 src_byte = 0, src_bit = 0; - uint32 row, rowsize = 0, bit_offset = 0; - uint8 matchbits = 0, maskbits = 0; - uint8 buff1 = 0, buff2 = 0; - uint8 *next; - tsample_t sample; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("rotateContigSamples8bits","Invalid src or destination buffer"); - return (1); - } - - rowsize = ((bps * spp * width) + 7) / 8; - ready_bits = 0; - maskbits = (uint8)-1 >> ( 8 - bps); - buff1 = buff2 = 0; - - for (row = 0; row < length ; row++) - { - bit_offset = col * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - src_bit = (bit_offset + (sample * bps)) % 8; - } - - switch (rotation) - { - case 90: next = src + src_byte - (row * rowsize); - break; - case 270: next = src + src_byte + (row * rowsize); - break; - default: TIFFError("rotateContigSamples8bits", "Invalid rotation %d", rotation); - return (1); - } - matchbits = maskbits << (8 - src_bit - bps); - buff1 = ((*next) & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - *dst++ = buff2; - buff2 = buff1; - ready_bits -= 8; - } - else - { - buff2 = (buff2 | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - if (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - } - - return (0); - } /* end rotateContigSamples8bits */ - - -static int -rotateContigSamples16bits(uint16 rotation, uint16 spp, uint16 bps, uint32 width, - uint32 length, uint32 col, uint8 *src, uint8 *dst) - { - int ready_bits = 0; - uint32 row, rowsize, bit_offset; - uint32 src_byte = 0, src_bit = 0; - uint16 matchbits = 0, maskbits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - uint8 *next; - tsample_t sample; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("rotateContigSamples16bits","Invalid src or destination buffer"); - return (1); - } - - rowsize = ((bps * spp * width) + 7) / 8; - ready_bits = 0; - maskbits = (uint16)-1 >> (16 - bps); - buff1 = buff2 = 0; - for (row = 0; row < length; row++) - { - bit_offset = col * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - src_bit = (bit_offset + (sample * bps)) % 8; - } - - switch (rotation) - { - case 90: next = src + src_byte - (row * rowsize); - break; - case 270: next = src + src_byte + (row * rowsize); - break; - default: TIFFError("rotateContigSamples8bits", "Invalid rotation %d", rotation); - return (1); - } - matchbits = maskbits << (16 - src_bit - bps); - if (little_endian) - buff1 = (next[0] << 8) | next[1]; - else - buff1 = (next[1] << 8) | next[0]; - - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 8) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - } - else - { /* add another bps bits to the buffer */ - bytebuff = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - if (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - } - - return (0); - } /* end rotateContigSamples16bits */ - -static int -rotateContigSamples24bits(uint16 rotation, uint16 spp, uint16 bps, uint32 width, - uint32 length, uint32 col, uint8 *src, uint8 *dst) - { - int ready_bits = 0; - uint32 row, rowsize, bit_offset; - uint32 src_byte = 0, src_bit = 0; - uint32 matchbits = 0, maskbits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - uint8 *next; - tsample_t sample; - - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("rotateContigSamples24bits","Invalid src or destination buffer"); - return (1); - } - - rowsize = ((bps * spp * width) + 7) / 8; - ready_bits = 0; - maskbits = (uint32)-1 >> (32 - bps); - buff1 = buff2 = 0; - for (row = 0; row < length; row++) - { - bit_offset = col * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - src_bit = (bit_offset + (sample * bps)) % 8; - } - - switch (rotation) - { - case 90: next = src + src_byte - (row * rowsize); - break; - case 270: next = src + src_byte + (row * rowsize); - break; - default: TIFFError("rotateContigSamples8bits", "Invalid rotation %d", rotation); - return (1); - } - matchbits = maskbits << (32 - src_bit - bps); - if (little_endian) - buff1 = (next[0] << 24) | (next[1] << 16) | (next[2] << 8) | next[3]; - else - buff1 = (next[3] << 24) | (next[2] << 16) | (next[1] << 8) | next[0]; - buff1 = (buff1 & matchbits) << (src_bit); - - /* If we have a full buffer's worth, write it out */ - if (ready_bits >= 16) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - } - else - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - return (0); - } /* end rotateContigSamples24bits */ - -static int -rotateContigSamples32bits(uint16 rotation, uint16 spp, uint16 bps, uint32 width, - uint32 length, uint32 col, uint8 *src, uint8 *dst) - { - int ready_bits = 0 /*, shift_width = 0 */; - /* int bytes_per_sample, bytes_per_pixel; */ - uint32 row, rowsize, bit_offset; - uint32 src_byte, src_bit; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 maskbits = 0, matchbits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - uint8 *next; - tsample_t sample; - - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("rotateContigSamples24bits","Invalid src or destination buffer"); - return (1); - } - - /* bytes_per_sample = (bps + 7) / 8; */ - /* bytes_per_pixel = ((bps * spp) + 7) / 8; */ - /* if (bytes_per_pixel < (bytes_per_sample + 1)) */ - /* shift_width = bytes_per_pixel; */ - /* else */ - /* shift_width = bytes_per_sample + 1; */ - - rowsize = ((bps * spp * width) + 7) / 8; - ready_bits = 0; - maskbits = (uint64)-1 >> (64 - bps); - buff1 = buff2 = 0; - for (row = 0; row < length; row++) - { - bit_offset = col * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - src_bit = (bit_offset + (sample * bps)) % 8; - } - - switch (rotation) - { - case 90: next = src + src_byte - (row * rowsize); - break; - case 270: next = src + src_byte + (row * rowsize); - break; - default: TIFFError("rotateContigSamples8bits", "Invalid rotation %d", rotation); - return (1); - } - matchbits = maskbits << (64 - src_bit - bps); - if (little_endian) - { - longbuff1 = (next[0] << 24) | (next[1] << 16) | (next[2] << 8) | next[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (next[3] << 24) | (next[2] << 16) | (next[1] << 8) | next[0]; - longbuff2 = longbuff1; - } - - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - buff1 = (buff3 & matchbits) << (src_bit); - - if (ready_bits < 32) - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - return (0); - } /* end rotateContigSamples32bits */ - - -/* Rotate an image by a multiple of 90 degrees clockwise */ -static int -rotateImage(uint16 rotation, struct image_data *image, uint32 *img_width, - uint32 *img_length, unsigned char **ibuff_ptr) - { - int shift_width; - uint32 bytes_per_pixel, bytes_per_sample; - uint32 row, rowsize, src_offset, dst_offset; - uint32 i, col, width, length; - uint32 colsize, buffsize, col_offset, pix_offset; - unsigned char *ibuff; - unsigned char *src; - unsigned char *dst; - uint16 spp, bps; - float res_temp; - unsigned char *rbuff = NULL; - - width = *img_width; - length = *img_length; - spp = image->spp; - bps = image->bps; - - rowsize = ((bps * spp * width) + 7) / 8; - colsize = ((bps * spp * length) + 7) / 8; - if ((colsize * width) > (rowsize * length)) - buffsize = (colsize + 1) * width; - else - buffsize = (rowsize + 1) * length; - - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - - switch (rotation) - { - case 0: - case 360: return (0); - case 90: - case 180: - case 270: break; - default: TIFFError("rotateImage", "Invalid rotation angle %d", rotation); - return (-1); - } - - if (!(rbuff = (unsigned char *)_TIFFmalloc(buffsize))) - { - TIFFError("rotateImage", "Unable to allocate rotation buffer of %1u bytes", buffsize); - return (-1); - } - _TIFFmemset(rbuff, '\0', buffsize); - - ibuff = *ibuff_ptr; - switch (rotation) - { - case 180: if ((bps % 8) == 0) /* byte alligned data */ - { - src = ibuff; - pix_offset = (spp * bps) / 8; - for (row = 0; row < length; row++) - { - dst_offset = (length - row - 1) * rowsize; - for (col = 0; col < width; col++) - { - col_offset = (width - col - 1) * pix_offset; - dst = rbuff + dst_offset + col_offset; - - for (i = 0; i < bytes_per_pixel; i++) - *dst++ = *src++; - } - } - } - else - { /* non 8 bit per sample data */ - for (row = 0; row < length; row++) - { - src_offset = row * rowsize; - dst_offset = (length - row - 1) * rowsize; - src = ibuff + src_offset; - dst = rbuff + dst_offset; - switch (shift_width) - { - case 1: if (bps == 1) - { - if (reverseSamples8bits(spp, bps, width, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - } - if (reverseSamples16bits(spp, bps, width, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 2: if (reverseSamples24bits(spp, bps, width, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 3: - case 4: - case 5: if (reverseSamples32bits(spp, bps, width, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - default: TIFFError("rotateImage","Unsupported bit depth %d", bps); - _TIFFfree(rbuff); - return (-1); - } - } - } - _TIFFfree(ibuff); - *(ibuff_ptr) = rbuff; - break; - - case 90: if ((bps % 8) == 0) /* byte aligned data */ - { - for (col = 0; col < width; col++) - { - src_offset = ((length - 1) * rowsize) + (col * bytes_per_pixel); - dst_offset = col * colsize; - src = ibuff + src_offset; - dst = rbuff + dst_offset; - for (row = length; row > 0; row--) - { - for (i = 0; i < bytes_per_pixel; i++) - *dst++ = *(src + i); - src -= rowsize; - } - } - } - else - { /* non 8 bit per sample data */ - for (col = 0; col < width; col++) - { - src_offset = (length - 1) * rowsize; - dst_offset = col * colsize; - src = ibuff + src_offset; - dst = rbuff + dst_offset; - switch (shift_width) - { - case 1: if (bps == 1) - { - if (rotateContigSamples8bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - } - if (rotateContigSamples16bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 2: if (rotateContigSamples24bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 3: - case 4: - case 5: if (rotateContigSamples32bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - default: TIFFError("rotateImage","Unsupported bit depth %d", bps); - _TIFFfree(rbuff); - return (-1); - } - } - } - _TIFFfree(ibuff); - *(ibuff_ptr) = rbuff; - - *img_width = length; - *img_length = width; - image->width = length; - image->length = width; - res_temp = image->xres; - image->xres = image->yres; - image->yres = res_temp; - break; - - case 270: if ((bps % 8) == 0) /* byte aligned data */ - { - for (col = 0; col < width; col++) - { - src_offset = col * bytes_per_pixel; - dst_offset = (width - col - 1) * colsize; - src = ibuff + src_offset; - dst = rbuff + dst_offset; - for (row = length; row > 0; row--) - { - for (i = 0; i < bytes_per_pixel; i++) - *dst++ = *(src + i); - src += rowsize; - } - } - } - else - { /* non 8 bit per sample data */ - for (col = 0; col < width; col++) - { - src_offset = 0; - dst_offset = (width - col - 1) * colsize; - src = ibuff + src_offset; - dst = rbuff + dst_offset; - switch (shift_width) - { - case 1: if (bps == 1) - { - if (rotateContigSamples8bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - } - if (rotateContigSamples16bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 2: if (rotateContigSamples24bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - case 3: - case 4: - case 5: if (rotateContigSamples32bits(rotation, spp, bps, width, - length, col, src, dst)) - { - _TIFFfree(rbuff); - return (-1); - } - break; - default: TIFFError("rotateImage","Unsupported bit depth %d", bps); - _TIFFfree(rbuff); - return (-1); - } - } - } - _TIFFfree(ibuff); - *(ibuff_ptr) = rbuff; - - *img_width = length; - *img_length = width; - image->width = length; - image->length = width; - res_temp = image->xres; - image->xres = image->yres; - image->yres = res_temp; - break; - default: - break; - } - - return (0); - } /* end rotateImage */ - -static int -reverseSamples8bits (uint16 spp, uint16 bps, uint32 width, - uint8 *ibuff, uint8 *obuff) - { - int ready_bits = 0; - uint32 col; - uint32 src_byte, src_bit; - uint32 bit_offset = 0; - uint8 match_bits = 0, mask_bits = 0; - uint8 buff1 = 0, buff2 = 0; - unsigned char *src; - unsigned char *dst; - tsample_t sample; - - if ((ibuff == NULL) || (obuff == NULL)) - { - TIFFError("reverseSamples8bits","Invalid image or work buffer"); - return (1); - } - - ready_bits = 0; - mask_bits = (uint8)-1 >> ( 8 - bps); - dst = obuff; - for (col = width; col > 0; col--) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = (col - 1) * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - src_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - src_bit = (bit_offset + (sample * bps)) % 8; - } - - src = ibuff + src_byte; - match_bits = mask_bits << (8 - src_bit - bps); - buff1 = ((*src) & match_bits) << (src_bit); - - if (ready_bits < 8) - buff2 = (buff2 | (buff1 >> ready_bits)); - else /* If we have a full buffer's worth, write it out */ - { - *dst++ = buff2; - buff2 = buff1; - ready_bits -= 8; - } - ready_bits += bps; - } - } - if (ready_bits > 0) - { - buff1 = (buff2 & ((unsigned int)255 << (8 - ready_bits))); - *dst++ = buff1; - } - - return (0); - } /* end reverseSamples8bits */ - - -static int -reverseSamples16bits (uint16 spp, uint16 bps, uint32 width, - uint8 *ibuff, uint8 *obuff) - { - int ready_bits = 0; - uint32 col; - uint32 src_byte = 0, high_bit = 0; - uint32 bit_offset = 0; - uint16 match_bits = 0, mask_bits = 0; - uint16 buff1 = 0, buff2 = 0; - uint8 bytebuff = 0; - unsigned char *src; - unsigned char *dst; - tsample_t sample; - - if ((ibuff == NULL) || (obuff == NULL)) - { - TIFFError("reverseSample16bits","Invalid image or work buffer"); - return (1); - } - - ready_bits = 0; - mask_bits = (uint16)-1 >> (16 - bps); - dst = obuff; - for (col = width; col > 0; col--) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = (col - 1) * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - high_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - high_bit = (bit_offset + (sample * bps)) % 8; - } - - src = ibuff + src_byte; - match_bits = mask_bits << (16 - high_bit - bps); - if (little_endian) - buff1 = (src[0] << 8) | src[1]; - else - buff1 = (src[1] << 8) | src[0]; - buff1 = (buff1 & match_bits) << (high_bit); - - if (ready_bits < 8) - { /* add another bps bits to the buffer */ - bytebuff = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - ready_bits -= 8; - /* shift in new bits */ - buff2 = ((buff2 << 8) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - if (ready_bits > 0) - { - bytebuff = (buff2 >> 8); - *dst++ = bytebuff; - } - - return (0); - } /* end reverseSamples16bits */ - -static int -reverseSamples24bits (uint16 spp, uint16 bps, uint32 width, - uint8 *ibuff, uint8 *obuff) - { - int ready_bits = 0; - uint32 col; - uint32 src_byte = 0, high_bit = 0; - uint32 bit_offset = 0; - uint32 match_bits = 0, mask_bits = 0; - uint32 buff1 = 0, buff2 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0; - unsigned char *src; - unsigned char *dst; - tsample_t sample; - - if ((ibuff == NULL) || (obuff == NULL)) - { - TIFFError("reverseSamples24bits","Invalid image or work buffer"); - return (1); - } - - ready_bits = 0; - mask_bits = (uint32)-1 >> (32 - bps); - dst = obuff; - for (col = width; col > 0; col--) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = (col - 1) * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - high_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - high_bit = (bit_offset + (sample * bps)) % 8; - } - - src = ibuff + src_byte; - match_bits = mask_bits << (32 - high_bit - bps); - if (little_endian) - buff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - else - buff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - buff1 = (buff1 & match_bits) << (high_bit); - - if (ready_bits < 16) - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 16); - *dst++ = bytebuff2; - ready_bits -= 16; - - /* shift in new bits */ - buff2 = ((buff2 << 16) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - - /* catch any trailing bits at the end of the line */ - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 24); - *dst++ = bytebuff1; - - buff2 = (buff2 << 8); - bytebuff2 = bytebuff1; - ready_bits -= 8; - } - - return (0); - } /* end reverseSamples24bits */ - - -static int -reverseSamples32bits (uint16 spp, uint16 bps, uint32 width, - uint8 *ibuff, uint8 *obuff) - { - int ready_bits = 0 /*, shift_width = 0 */; - /* int bytes_per_sample, bytes_per_pixel; */ - uint32 bit_offset; - uint32 src_byte = 0, high_bit = 0; - uint32 col; - uint32 longbuff1 = 0, longbuff2 = 0; - uint64 mask_bits = 0, match_bits = 0; - uint64 buff1 = 0, buff2 = 0, buff3 = 0; - uint8 bytebuff1 = 0, bytebuff2 = 0, bytebuff3 = 0, bytebuff4 = 0; - unsigned char *src; - unsigned char *dst; - tsample_t sample; - - if ((ibuff == NULL) || (obuff == NULL)) - { - TIFFError("reverseSamples32bits","Invalid image or work buffer"); - return (1); - } - - ready_bits = 0; - mask_bits = (uint64)-1 >> (64 - bps); - dst = obuff; - - /* bytes_per_sample = (bps + 7) / 8; */ - /* bytes_per_pixel = ((bps * spp) + 7) / 8; */ - /* if (bytes_per_pixel < (bytes_per_sample + 1)) */ - /* shift_width = bytes_per_pixel; */ - /* else */ - /* shift_width = bytes_per_sample + 1; */ - - for (col = width; col > 0; col--) - { - /* Compute src byte(s) and bits within byte(s) */ - bit_offset = (col - 1) * bps * spp; - for (sample = 0; sample < spp; sample++) - { - if (sample == 0) - { - src_byte = bit_offset / 8; - high_bit = bit_offset % 8; - } - else - { - src_byte = (bit_offset + (sample * bps)) / 8; - high_bit = (bit_offset + (sample * bps)) % 8; - } - - src = ibuff + src_byte; - match_bits = mask_bits << (64 - high_bit - bps); - if (little_endian) - { - longbuff1 = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; - longbuff2 = longbuff1; - } - else - { - longbuff1 = (src[3] << 24) | (src[2] << 16) | (src[1] << 8) | src[0]; - longbuff2 = longbuff1; - } - buff3 = ((uint64)longbuff1 << 32) | longbuff2; - buff1 = (buff3 & match_bits) << (high_bit); - - if (ready_bits < 32) - { /* add another bps bits to the buffer */ - bytebuff1 = bytebuff2 = bytebuff3 = bytebuff4 = 0; - buff2 = (buff2 | (buff1 >> ready_bits)); - } - else /* If we have a full buffer's worth, write it out */ - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - bytebuff2 = (buff2 >> 48); - *dst++ = bytebuff2; - bytebuff3 = (buff2 >> 40); - *dst++ = bytebuff3; - bytebuff4 = (buff2 >> 32); - *dst++ = bytebuff4; - ready_bits -= 32; - - /* shift in new bits */ - buff2 = ((buff2 << 32) | (buff1 >> ready_bits)); - } - ready_bits += bps; - } - } - while (ready_bits > 0) - { - bytebuff1 = (buff2 >> 56); - *dst++ = bytebuff1; - buff2 = (buff2 << 8); - ready_bits -= 8; - } - - return (0); - } /* end reverseSamples32bits */ - -static int -reverseSamplesBytes (uint16 spp, uint16 bps, uint32 width, - uint8 *src, uint8 *dst) - { - int i; - uint32 col, bytes_per_pixel, col_offset; - uint8 bytebuff1; - unsigned char swapbuff[32]; - - if ((src == NULL) || (dst == NULL)) - { - TIFFError("reverseSamplesBytes","Invalid input or output buffer"); - return (1); - } - - bytes_per_pixel = ((bps * spp) + 7) / 8; - switch (bps / 8) - { - case 8: /* Use memcpy for multiple bytes per sample data */ - case 4: - case 3: - case 2: for (col = 0; col < (width / 2); col++) - { - col_offset = col * bytes_per_pixel; - _TIFFmemcpy (swapbuff, src + col_offset, bytes_per_pixel); - _TIFFmemcpy (src + col_offset, dst - col_offset - bytes_per_pixel, bytes_per_pixel); - _TIFFmemcpy (dst - col_offset - bytes_per_pixel, swapbuff, bytes_per_pixel); - } - break; - case 1: /* Use byte copy only for single byte per sample data */ - for (col = 0; col < (width / 2); col++) - { - for (i = 0; i < spp; i++) - { - bytebuff1 = *src; - *src++ = *(dst - spp + i); - *(dst - spp + i) = bytebuff1; - } - dst -= spp; - } - break; - default: TIFFError("reverseSamplesBytes","Unsupported bit depth %d", bps); - return (1); - } - return (0); - } /* end reverseSamplesBytes */ - - -/* Mirror an image horizontally or vertically */ -static int -mirrorImage(uint16 spp, uint16 bps, uint16 mirror, uint32 width, uint32 length, unsigned char *ibuff) - { - int shift_width; - uint32 bytes_per_pixel, bytes_per_sample; - uint32 row, rowsize, row_offset; - unsigned char *line_buff = NULL; - unsigned char *src; - unsigned char *dst; - - src = ibuff; - rowsize = ((width * bps * spp) + 7) / 8; - switch (mirror) - { - case MIRROR_BOTH: - case MIRROR_VERT: - line_buff = (unsigned char *)_TIFFmalloc(rowsize); - if (line_buff == NULL) - { - TIFFError ("mirrorImage", "Unable to allocate mirror line buffer of %1u bytes", rowsize); - return (-1); - } - - dst = ibuff + (rowsize * (length - 1)); - for (row = 0; row < length / 2; row++) - { - _TIFFmemcpy(line_buff, src, rowsize); - _TIFFmemcpy(src, dst, rowsize); - _TIFFmemcpy(dst, line_buff, rowsize); - src += (rowsize); - dst -= (rowsize); - } - if (line_buff) - _TIFFfree(line_buff); - if (mirror == MIRROR_VERT) - break; - case MIRROR_HORIZ : - if ((bps % 8) == 0) /* byte alligned data */ - { - for (row = 0; row < length; row++) - { - row_offset = row * rowsize; - src = ibuff + row_offset; - dst = ibuff + row_offset + rowsize; - if (reverseSamplesBytes(spp, bps, width, src, dst)) - { - return (-1); - } - } - } - else - { /* non 8 bit per sample data */ - if (!(line_buff = (unsigned char *)_TIFFmalloc(rowsize + 1))) - { - TIFFError("mirrorImage", "Unable to allocate mirror line buffer"); - return (-1); - } - bytes_per_sample = (bps + 7) / 8; - bytes_per_pixel = ((bps * spp) + 7) / 8; - if (bytes_per_pixel < (bytes_per_sample + 1)) - shift_width = bytes_per_pixel; - else - shift_width = bytes_per_sample + 1; - - for (row = 0; row < length; row++) - { - row_offset = row * rowsize; - src = ibuff + row_offset; - _TIFFmemset (line_buff, '\0', rowsize); - switch (shift_width) - { - case 1: if (reverseSamples16bits(spp, bps, width, src, line_buff)) - { - _TIFFfree(line_buff); - return (-1); - } - _TIFFmemcpy (src, line_buff, rowsize); - break; - case 2: if (reverseSamples24bits(spp, bps, width, src, line_buff)) - { - _TIFFfree(line_buff); - return (-1); - } - _TIFFmemcpy (src, line_buff, rowsize); - break; - case 3: - case 4: - case 5: if (reverseSamples32bits(spp, bps, width, src, line_buff)) - { - _TIFFfree(line_buff); - return (-1); - } - _TIFFmemcpy (src, line_buff, rowsize); - break; - default: TIFFError("mirrorImage","Unsupported bit depth %d", bps); - _TIFFfree(line_buff); - return (-1); - } - } - if (line_buff) - _TIFFfree(line_buff); - } - break; - - default: TIFFError ("mirrorImage", "Invalid mirror axis %d", mirror); - return (-1); - break; - } - - return (0); - } - -/* Invert the light and dark values for a bilevel or grayscale image */ -static int -invertImage(uint16 photometric, uint16 spp, uint16 bps, uint32 width, uint32 length, unsigned char *work_buff) - { - uint32 row, col; - unsigned char bytebuff1, bytebuff2, bytebuff3, bytebuff4; - unsigned char *src; - uint16 *src_uint16; - uint32 *src_uint32; - - if (spp != 1) - { - TIFFError("invertImage", "Image inversion not supported for more than one sample per pixel"); - return (-1); - } - - if (photometric != PHOTOMETRIC_MINISWHITE && photometric != PHOTOMETRIC_MINISBLACK) - { - TIFFError("invertImage", "Only black and white and grayscale images can be inverted"); - return (-1); - } - - src = work_buff; - if (src == NULL) - { - TIFFError ("invertImage", "Invalid crop buffer passed to invertImage"); - return (-1); - } - - switch (bps) - { - case 32: src_uint32 = (uint32 *)src; - for (row = 0; row < length; row++) - for (col = 0; col < width; col++) - { - *src_uint32 = (uint32)0xFFFFFFFF - *src_uint32; - src_uint32++; - } - break; - case 16: src_uint16 = (uint16 *)src; - for (row = 0; row < length; row++) - for (col = 0; col < width; col++) - { - *src_uint16 = (uint16)0xFFFF - *src_uint16; - src_uint16++; - } - break; - case 8: for (row = 0; row < length; row++) - for (col = 0; col < width; col++) - { - *src = (uint8)255 - *src; - src++; - } - break; - case 4: for (row = 0; row < length; row++) - for (col = 0; col < width; col++) - { - bytebuff1 = 16 - (uint8)(*src & 240 >> 4); - bytebuff2 = 16 - (*src & 15); - *src = bytebuff1 << 4 & bytebuff2; - src++; - } - break; - case 2: for (row = 0; row < length; row++) - for (col = 0; col < width; col++) - { - bytebuff1 = 4 - (uint8)(*src & 192 >> 6); - bytebuff2 = 4 - (uint8)(*src & 48 >> 4); - bytebuff3 = 4 - (uint8)(*src & 12 >> 2); - bytebuff4 = 4 - (uint8)(*src & 3); - *src = (bytebuff1 << 6) || (bytebuff2 << 4) || (bytebuff3 << 2) || bytebuff4; - src++; - } - break; - case 1: for (row = 0; row < length; row++) - for (col = 0; col < width; col += 8 /(spp * bps)) - { - *src = ~(*src); - src++; - } - break; - default: TIFFError("invertImage", "Unsupported bit depth %d", bps); - return (-1); - } - - return (0); - } - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffdither.c b/tiff/tools/tiffdither.c deleted file mode 100755 index 4308946..0000000 --- a/tiff/tools/tiffdither.c +++ /dev/null @@ -1,334 +0,0 @@ -/* $Id: tiffdither.c,v 1.14 2013-05-02 14:44:29 tgl Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) - -uint32 imagewidth; -uint32 imagelength; -int threshold = 128; - -static void usage(void); - -/* - * Floyd-Steinberg error propragation with threshold. - * This code is stolen from tiffmedian. - */ -static void -fsdither(TIFF* in, TIFF* out) -{ - unsigned char *outline, *inputline, *inptr; - short *thisline, *nextline, *tmpptr; - register unsigned char *outptr; - register short *thisptr, *nextptr; - register uint32 i, j; - uint32 imax, jmax; - int lastline, lastpixel; - int bit; - tsize_t outlinesize; - - imax = imagelength - 1; - jmax = imagewidth - 1; - inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - thisline = (short *)_TIFFmalloc(imagewidth * sizeof (short)); - nextline = (short *)_TIFFmalloc(imagewidth * sizeof (short)); - outlinesize = TIFFScanlineSize(out); - outline = (unsigned char *) _TIFFmalloc(outlinesize); - - /* - * Get first line - */ - if (TIFFReadScanline(in, inputline, 0, 0) <= 0) - goto skip_on_error; - - inptr = inputline; - nextptr = nextline; - for (j = 0; j < imagewidth; ++j) - *nextptr++ = *inptr++; - for (i = 1; i < imagelength; ++i) { - tmpptr = thisline; - thisline = nextline; - nextline = tmpptr; - lastline = (i == imax); - if (TIFFReadScanline(in, inputline, i, 0) <= 0) - break; - inptr = inputline; - nextptr = nextline; - for (j = 0; j < imagewidth; ++j) - *nextptr++ = *inptr++; - thisptr = thisline; - nextptr = nextline; - _TIFFmemset(outptr = outline, 0, outlinesize); - bit = 0x80; - for (j = 0; j < imagewidth; ++j) { - register int v; - - lastpixel = (j == jmax); - v = *thisptr++; - if (v < 0) - v = 0; - else if (v > 255) - v = 255; - if (v > threshold) { - *outptr |= bit; - v -= 255; - } - bit >>= 1; - if (bit == 0) { - outptr++; - bit = 0x80; - } - if (!lastpixel) - thisptr[0] += v * 7 / 16; - if (!lastline) { - if (j != 0) - nextptr[-1] += v * 3 / 16; - *nextptr++ += v * 5 / 16; - if (!lastpixel) - nextptr[0] += v / 16; - } - } - if (TIFFWriteScanline(out, outline, i-1, 0) < 0) - break; - } - skip_on_error: - _TIFFfree(inputline); - _TIFFfree(thisline); - _TIFFfree(nextline); - _TIFFfree(outline); -} - -static uint16 compression = COMPRESSION_PACKBITS; -static uint16 predictor = 0; -static uint32 group3options = 0; - -static void -processG3Options(char* cp) -{ - if ((cp = strchr(cp, ':'))) { - do { - cp++; - if (strneq(cp, "1d", 2)) - group3options &= ~GROUP3OPT_2DENCODING; - else if (strneq(cp, "2d", 2)) - group3options |= GROUP3OPT_2DENCODING; - else if (strneq(cp, "fill", 4)) - group3options |= GROUP3OPT_FILLBITS; - else - usage(); - } while ((cp = strchr(cp, ':'))); - } -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "g3", 2)) { - processG3Options(opt); - compression = COMPRESSION_CCITTFAX3; - } else if (streq(opt, "g4")) - compression = COMPRESSION_CCITTFAX4; - else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -int -main(int argc, char* argv[]) -{ - TIFF *in, *out; - uint16 samplesperpixel, bitspersample = 1, shortv; - float floatv; - char thing[1024]; - uint32 rowsperstrip = (uint32) -1; - uint16 fillorder = 0; - int c; - extern int optind; - extern char *optarg; - - while ((c = getopt(argc, argv, "c:f:r:t:")) != -1) - switch (c) { - case 'c': /* compression scheme */ - if (!processCompressOptions(optarg)) - usage(); - break; - case 'f': /* fill order */ - if (streq(optarg, "lsb2msb")) - fillorder = FILLORDER_LSB2MSB; - else if (streq(optarg, "msb2lsb")) - fillorder = FILLORDER_MSB2LSB; - else - usage(); - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case 't': - threshold = atoi(optarg); - if (threshold < 0) - threshold = 0; - else if (threshold > 255) - threshold = 255; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind < 2) - usage(); - in = TIFFOpen(argv[optind], "r"); - if (in == NULL) - return (-1); - TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - if (samplesperpixel != 1) { - fprintf(stderr, "%s: Not a b&w image.\n", argv[0]); - return (-1); - } - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample); - if (bitspersample != 8) { - fprintf(stderr, - " %s: Sorry, only handle 8-bit samples.\n", argv[0]); - return (-1); - } - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return (-1); - CopyField(TIFFTAG_IMAGEWIDTH, imagewidth); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength); - TIFFSetField(out, TIFFTAG_IMAGELENGTH, imagelength-1); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 1); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1); - TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - if (fillorder) - TIFFSetField(out, TIFFTAG_FILLORDER, fillorder); - else - CopyField(TIFFTAG_FILLORDER, shortv); - snprintf(thing, sizeof(thing), "Dithered B&W version of %s", argv[optind]); - TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing); - CopyField(TIFFTAG_PHOTOMETRIC, shortv); - CopyField(TIFFTAG_ORIENTATION, shortv); - CopyField(TIFFTAG_XRESOLUTION, floatv); - CopyField(TIFFTAG_YRESOLUTION, floatv); - CopyField(TIFFTAG_RESOLUTIONUNIT, shortv); - rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip); - switch (compression) { - case COMPRESSION_CCITTFAX3: - TIFFSetField(out, TIFFTAG_GROUP3OPTIONS, group3options); - break; - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - fsdither(in, out); - TIFFClose(in); - TIFFClose(out); - return (0); -} - -char* stuff[] = { -"usage: tiffdither [options] input.tif output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -" -t # set the threshold value for dithering (default 128)", -" -f lsb2msb force lsb-to-msb FillOrder for output", -" -f msb2lsb force msb-to-lsb FillOrder for output", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding", -" -c g3[:opts] compress output with CCITT Group 3 encoding", -" -c g4 compress output with CCITT Group 4 encoding", -" -c none use no compression algorithm on output", -"", -"Group 3 options:", -" 1d use default CCITT Group 3 1D-encoding", -" 2d use optional CCITT Group 3 2D-encoding", -" fill byte-align EOL codes", -"For example, -c g3:2d:fill to get G3-2D-encoded data with byte-aligned EOLs", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffdump.c b/tiff/tools/tiffdump.c deleted file mode 100755 index f490d85..0000000 --- a/tiff/tools/tiffdump.c +++ /dev/null @@ -1,895 +0,0 @@ -/* $Id: tiffdump.c,v 1.30 2014-12-22 02:52:38 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#include "tiffiop.h" - -#ifdef HAVE_FCNTL_H -# include -#endif - -#ifdef HAVE_SYS_TYPES_H -# include -#endif - -#ifdef HAVE_IO_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#include "tiffio.h" - -#ifndef O_BINARY -# define O_BINARY 0 -#endif - -static union -{ - TIFFHeaderClassic classic; - TIFFHeaderBig big; - TIFFHeaderCommon common; -} hdr; -char* appname; -char* curfile; -int swabflag; -int bigendian; -int bigtiff; -uint32 maxitems = 24; /* maximum indirect data items to print */ - -const char* bytefmt = "%s%#02x"; /* BYTE */ -const char* sbytefmt = "%s%d"; /* SBYTE */ -const char* shortfmt = "%s%u"; /* SHORT */ -const char* sshortfmt = "%s%d"; /* SSHORT */ -const char* longfmt = "%s%lu"; /* LONG */ -const char* slongfmt = "%s%ld"; /* SLONG */ -const char* ifdfmt = "%s%#04lx"; /* IFD offset */ -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) -const char* long8fmt = "%s%I64u"; /* LONG8 */ -const char* slong8fmt = "%s%I64d"; /* SLONG8 */ -const char* ifd8fmt = "%s%#08I64x"; /* IFD offset8*/ -#else -const char* long8fmt = "%s%llu"; /* LONG8 */ -const char* slong8fmt = "%s%lld"; /* SLONG8 */ -const char* ifd8fmt = "%s%#08llx"; /* IFD offset8*/ -#endif -const char* rationalfmt = "%s%g"; /* RATIONAL */ -const char* srationalfmt = "%s%g"; /* SRATIONAL */ -const char* floatfmt = "%s%g"; /* FLOAT */ -const char* doublefmt = "%s%g"; /* DOUBLE */ - -static void dump(int, uint64); -extern int optind; -extern char* optarg; - -void -usage() -{ - fprintf(stderr, "usage: %s [-h] [-o offset] [-m maxitems] file.tif ...\n", appname); - exit(-1); -} - -int -main(int argc, char* argv[]) -{ - int one = 1, fd; - int multiplefiles = (argc > 1); - int c; - uint64 diroff = 0; - bigendian = (*(char *)&one == 0); - - appname = argv[0]; - while ((c = getopt(argc, argv, "m:o:h")) != -1) { - switch (c) { - case 'h': /* print values in hex */ - shortfmt = "%s%#x"; - sshortfmt = "%s%#x"; - longfmt = "%s%#lx"; - slongfmt = "%s%#lx"; - break; - case 'o': - diroff = (uint64) strtoul(optarg, NULL, 0); - break; - case 'm': - maxitems = strtoul(optarg, NULL, 0); - break; - default: - usage(); - } - } - if (optind >= argc) - usage(); - for (; optind < argc; optind++) { - fd = open(argv[optind], O_RDONLY|O_BINARY, 0); - if (fd < 0) { - perror(argv[0]); - return (-1); - } - if (multiplefiles) - printf("%s:\n", argv[optind]); - curfile = argv[optind]; - swabflag = 0; - bigtiff = 0; - dump(fd, diroff); - close(fd); - } - return (0); -} - -#define ord(e) ((int)e) - -static uint64 ReadDirectory(int, unsigned, uint64); -static void ReadError(char*); -static void Error(const char*, ...); -static void Fatal(const char*, ...); - -static void -dump(int fd, uint64 diroff) -{ - unsigned i, j; - uint64* visited_diroff = NULL; - unsigned int count_visited_dir = 0; - - lseek(fd, (off_t) 0, 0); - if (read(fd, (char*) &hdr, sizeof (TIFFHeaderCommon)) != sizeof (TIFFHeaderCommon)) - ReadError("TIFF header"); - if (hdr.common.tiff_magic != TIFF_BIGENDIAN - && hdr.common.tiff_magic != TIFF_LITTLEENDIAN && -#if HOST_BIGENDIAN - /* MDI is sensitive to the host byte order, unlike TIFF */ - MDI_BIGENDIAN != hdr.common.tiff_magic -#else - MDI_LITTLEENDIAN != hdr.common.tiff_magic -#endif - ) { - Fatal("Not a TIFF or MDI file, bad magic number %u (%#x)", - hdr.common.tiff_magic, hdr.common.tiff_magic); - } - if (hdr.common.tiff_magic == TIFF_BIGENDIAN - || hdr.common.tiff_magic == MDI_BIGENDIAN) - swabflag = !bigendian; - else - swabflag = bigendian; - if (swabflag) - TIFFSwabShort(&hdr.common.tiff_version); - if (hdr.common.tiff_version==42) - { - if (read(fd, (char*) &hdr.classic.tiff_diroff, 4) != 4) - ReadError("TIFF header"); - if (swabflag) - TIFFSwabLong(&hdr.classic.tiff_diroff); - printf("Magic: %#x <%s-endian> Version: %#x <%s>\n", - hdr.classic.tiff_magic, - hdr.classic.tiff_magic == TIFF_BIGENDIAN ? "big" : "little", - 42,"ClassicTIFF"); - if (diroff == 0) - diroff = hdr.classic.tiff_diroff; - } - else if (hdr.common.tiff_version==43) - { - if (read(fd, (char*) &hdr.big.tiff_offsetsize, 12) != 12) - ReadError("TIFF header"); - if (swabflag) - { - TIFFSwabShort(&hdr.big.tiff_offsetsize); - TIFFSwabShort(&hdr.big.tiff_unused); - TIFFSwabLong8(&hdr.big.tiff_diroff); - } - printf("Magic: %#x <%s-endian> Version: %#x <%s>\n", - hdr.big.tiff_magic, - hdr.big.tiff_magic == TIFF_BIGENDIAN ? "big" : "little", - 43,"BigTIFF"); - printf("OffsetSize: %#x Unused: %#x\n", - hdr.big.tiff_offsetsize,hdr.big.tiff_unused); - if (diroff == 0) - diroff = hdr.big.tiff_diroff; - bigtiff = 1; - } - else - Fatal("Not a TIFF file, bad version number %u (%#x)", - hdr.common.tiff_version, hdr.common.tiff_version); - for (i = 0; diroff != 0; i++) { - for(j=0; j 0) - putchar('\n'); - diroff = ReadDirectory(fd, i, diroff); - } - if( visited_diroff ) - free(visited_diroff); -} - -static const int datawidth[] = { - 0, /* 00 = undefined */ - 1, /* 01 = TIFF_BYTE */ - 1, /* 02 = TIFF_ASCII */ - 2, /* 03 = TIFF_SHORT */ - 4, /* 04 = TIFF_LONG */ - 8, /* 05 = TIFF_RATIONAL */ - 1, /* 06 = TIFF_SBYTE */ - 1, /* 07 = TIFF_UNDEFINED */ - 2, /* 08 = TIFF_SSHORT */ - 4, /* 09 = TIFF_SLONG */ - 8, /* 10 = TIFF_SRATIONAL */ - 4, /* 11 = TIFF_FLOAT */ - 8, /* 12 = TIFF_DOUBLE */ - 4, /* 13 = TIFF_IFD */ - 0, /* 14 = undefined */ - 0, /* 15 = undefined */ - 8, /* 16 = TIFF_LONG8 */ - 8, /* 17 = TIFF_SLONG8 */ - 8, /* 18 = TIFF_IFD8 */ -}; -#define NWIDTHS (sizeof (datawidth) / sizeof (datawidth[0])) -static void PrintTag(FILE*, uint16); -static void PrintType(FILE*, uint16); -static void PrintData(FILE*, uint16, uint32, unsigned char*); - -/* - * Read the next TIFF directory from a file - * and convert it to the internal format. - * We read directories sequentially. - */ -static uint64 -ReadDirectory(int fd, unsigned int ix, uint64 off) -{ - uint16 dircount; - uint32 direntrysize; - void* dirmem = NULL; - uint64 nextdiroff = 0; - uint32 n; - uint8* dp; - - if (off == 0) /* no more directories */ - goto done; -#if defined(__WIN32__) && defined(_MSC_VER) - if (_lseeki64(fd, (__int64)off, SEEK_SET) != (__int64)off) { -#else - if (lseek(fd, (off_t)off, SEEK_SET) != (off_t)off) { -#endif - Fatal("Seek error accessing TIFF directory"); - goto done; - } - if (!bigtiff) { - if (read(fd, (char*) &dircount, sizeof (uint16)) != sizeof (uint16)) { - ReadError("directory count"); - goto done; - } - if (swabflag) - TIFFSwabShort(&dircount); - direntrysize = 12; - } else { - uint64 dircount64 = 0; - if (read(fd, (char*) &dircount64, sizeof (uint64)) != sizeof (uint64)) { - ReadError("directory count"); - goto done; - } - if (swabflag) - TIFFSwabLong8(&dircount64); - if (dircount64>0xFFFF) { - Error("Sanity check on directory count failed"); - goto done; - } - dircount = (uint16)dircount64; - direntrysize = 20; - } - dirmem = _TIFFmalloc(TIFFSafeMultiply(tmsize_t,dircount,direntrysize)); - if (dirmem == NULL) { - Fatal("No space for TIFF directory"); - goto done; - } - n = read(fd, (char*) dirmem, dircount*direntrysize); - if (n != dircount*direntrysize) { - n /= direntrysize; - Error( -#if defined(__WIN32__) && defined(_MSC_VER) - "Could only read %lu of %u entries in directory at offset %#I64x", - (unsigned long)n, dircount, (unsigned __int64) off); -#else - "Could only read %lu of %u entries in directory at offset %#llx", - (unsigned long)n, dircount, (unsigned long long) off); -#endif - dircount = n; - nextdiroff = 0; - } else { - if (!bigtiff) { - uint32 nextdiroff32; - if (read(fd, (char*) &nextdiroff32, sizeof (uint32)) != sizeof (uint32)) - nextdiroff32 = 0; - if (swabflag) - TIFFSwabLong(&nextdiroff32); - nextdiroff = nextdiroff32; - } else { - if (read(fd, (char*) &nextdiroff, sizeof (uint64)) != sizeof (uint64)) - nextdiroff = 0; - if (swabflag) - TIFFSwabLong8(&nextdiroff); - } - } -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - printf("Directory %u: offset %I64u (%#I64x) next %I64u (%#I64x)\n", ix, - (unsigned __int64)off, (unsigned __int64)off, - (unsigned __int64)nextdiroff, (unsigned __int64)nextdiroff); -#else - printf("Directory %u: offset %llu (%#llx) next %llu (%#llx)\n", ix, - (unsigned long long)off, (unsigned long long)off, - (unsigned long long)nextdiroff, (unsigned long long)nextdiroff); -#endif - for (dp = (uint8*)dirmem, n = dircount; n > 0; n--) { - uint16 tag; - uint16 type; - uint16 typewidth; - uint64 count; - uint64 datasize; - int datafits; - void* datamem; - uint64 dataoffset; - int datatruncated; - int datasizeoverflow; - - tag = *(uint16*)dp; - if (swabflag) - TIFFSwabShort(&tag); - dp += sizeof(uint16); - type = *(uint16*)dp; - dp += sizeof(uint16); - if (swabflag) - TIFFSwabShort(&type); - PrintTag(stdout, tag); - putchar(' '); - PrintType(stdout, type); - putchar(' '); - if (!bigtiff) - { - uint32 count32; - count32 = *(uint32*)dp; - if (swabflag) - TIFFSwabLong(&count32); - dp += sizeof(uint32); - count = count32; - } - else - { - count = *(uint64*)dp; - if (swabflag) - TIFFSwabLong8(&count); - dp += sizeof(uint64); - } -#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__)) - printf("%I64u<", (unsigned __int64)count); -#else - printf("%llu<", (unsigned long long)count); -#endif - if (type >= NWIDTHS) - typewidth = 0; - else - typewidth = datawidth[type]; - datasize = count*typewidth; - datasizeoverflow = (typewidth > 0 && datasize / typewidth != count); - datafits = 1; - datamem = dp; - dataoffset = 0; - datatruncated = 0; - if (!bigtiff) - { - if (datasizeoverflow || datasize>4) - { - uint32 dataoffset32; - datafits = 0; - datamem = NULL; - dataoffset32 = *(uint32*)dp; - if (swabflag) - TIFFSwabLong(&dataoffset32); - dataoffset = dataoffset32; - } - dp += sizeof(uint32); - } - else - { - if (datasizeoverflow || datasize>8) - { - datafits = 0; - datamem = NULL; - dataoffset = *(uint64*)dp; - if (swabflag) - TIFFSwabLong8(&dataoffset); - } - dp += sizeof(uint64); - } - if (datasizeoverflow || datasize>0x10000) - { - datatruncated = 1; - count = 0x10000/typewidth; - datasize = count*typewidth; - } - if (count>maxitems) - { - datatruncated = 1; - count = maxitems; - datasize = count*typewidth; - } - if (!datafits) - { - datamem = _TIFFmalloc((uint32)datasize); - if (datamem) { -#if defined(__WIN32__) && defined(_MSC_VER) - if (_lseeki64(fd, (__int64)dataoffset, SEEK_SET) - != (__int64)dataoffset) -#else - if (lseek(fd, (off_t)dataoffset, 0) != - (off_t)dataoffset) -#endif - { - Error( - "Seek error accessing tag %u value", tag); - _TIFFfree(datamem); - datamem = NULL; - } - else if (read(fd, datamem, (size_t)datasize) != (TIFF_SSIZE_T)datasize) - { - Error( - "Read error accessing tag %u value", tag); - _TIFFfree(datamem); - datamem = NULL; - } - } else - Error("No space for data for tag %u",tag); - } - if (datamem) - { - if (swabflag) - { - switch (type) - { - case TIFF_BYTE: - case TIFF_ASCII: - case TIFF_SBYTE: - case TIFF_UNDEFINED: - break; - case TIFF_SHORT: - case TIFF_SSHORT: - TIFFSwabArrayOfShort((uint16*)datamem,(tmsize_t)count); - break; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - case TIFF_IFD: - TIFFSwabArrayOfLong((uint32*)datamem,(tmsize_t)count); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - TIFFSwabArrayOfLong((uint32*)datamem,(tmsize_t)count*2); - break; - case TIFF_DOUBLE: - case TIFF_LONG8: - case TIFF_SLONG8: - case TIFF_IFD8: - TIFFSwabArrayOfLong8((uint64*)datamem,(tmsize_t)count); - break; - } - } - PrintData(stdout,type,(uint32)count,datamem); - if (datatruncated) - printf(" ..."); - if (!datafits) - { - _TIFFfree(datamem); - datamem = NULL; - } - } - printf(">\n"); - } -done: - if (dirmem) - _TIFFfree((char *)dirmem); - return (nextdiroff); -} - -static const struct tagname { - uint16 tag; - const char* name; -} tagnames[] = { - { TIFFTAG_SUBFILETYPE, "SubFileType" }, - { TIFFTAG_OSUBFILETYPE, "OldSubFileType" }, - { TIFFTAG_IMAGEWIDTH, "ImageWidth" }, - { TIFFTAG_IMAGELENGTH, "ImageLength" }, - { TIFFTAG_BITSPERSAMPLE, "BitsPerSample" }, - { TIFFTAG_COMPRESSION, "Compression" }, - { TIFFTAG_PHOTOMETRIC, "Photometric" }, - { TIFFTAG_THRESHHOLDING, "Threshholding" }, - { TIFFTAG_CELLWIDTH, "CellWidth" }, - { TIFFTAG_CELLLENGTH, "CellLength" }, - { TIFFTAG_FILLORDER, "FillOrder" }, - { TIFFTAG_DOCUMENTNAME, "DocumentName" }, - { TIFFTAG_IMAGEDESCRIPTION, "ImageDescription" }, - { TIFFTAG_MAKE, "Make" }, - { TIFFTAG_MODEL, "Model" }, - { TIFFTAG_STRIPOFFSETS, "StripOffsets" }, - { TIFFTAG_ORIENTATION, "Orientation" }, - { TIFFTAG_SAMPLESPERPIXEL, "SamplesPerPixel" }, - { TIFFTAG_ROWSPERSTRIP, "RowsPerStrip" }, - { TIFFTAG_STRIPBYTECOUNTS, "StripByteCounts" }, - { TIFFTAG_MINSAMPLEVALUE, "MinSampleValue" }, - { TIFFTAG_MAXSAMPLEVALUE, "MaxSampleValue" }, - { TIFFTAG_XRESOLUTION, "XResolution" }, - { TIFFTAG_YRESOLUTION, "YResolution" }, - { TIFFTAG_PLANARCONFIG, "PlanarConfig" }, - { TIFFTAG_PAGENAME, "PageName" }, - { TIFFTAG_XPOSITION, "XPosition" }, - { TIFFTAG_YPOSITION, "YPosition" }, - { TIFFTAG_FREEOFFSETS, "FreeOffsets" }, - { TIFFTAG_FREEBYTECOUNTS, "FreeByteCounts" }, - { TIFFTAG_GRAYRESPONSEUNIT, "GrayResponseUnit" }, - { TIFFTAG_GRAYRESPONSECURVE,"GrayResponseCurve" }, - { TIFFTAG_GROUP3OPTIONS, "Group3Options" }, - { TIFFTAG_GROUP4OPTIONS, "Group4Options" }, - { TIFFTAG_RESOLUTIONUNIT, "ResolutionUnit" }, - { TIFFTAG_PAGENUMBER, "PageNumber" }, - { TIFFTAG_COLORRESPONSEUNIT,"ColorResponseUnit" }, - { TIFFTAG_TRANSFERFUNCTION, "TransferFunction" }, - { TIFFTAG_SOFTWARE, "Software" }, - { TIFFTAG_DATETIME, "DateTime" }, - { TIFFTAG_ARTIST, "Artist" }, - { TIFFTAG_HOSTCOMPUTER, "HostComputer" }, - { TIFFTAG_PREDICTOR, "Predictor" }, - { TIFFTAG_WHITEPOINT, "Whitepoint" }, - { TIFFTAG_PRIMARYCHROMATICITIES,"PrimaryChromaticities" }, - { TIFFTAG_COLORMAP, "Colormap" }, - { TIFFTAG_HALFTONEHINTS, "HalftoneHints" }, - { TIFFTAG_TILEWIDTH, "TileWidth" }, - { TIFFTAG_TILELENGTH, "TileLength" }, - { TIFFTAG_TILEOFFSETS, "TileOffsets" }, - { TIFFTAG_TILEBYTECOUNTS, "TileByteCounts" }, - { TIFFTAG_BADFAXLINES, "BadFaxLines" }, - { TIFFTAG_CLEANFAXDATA, "CleanFaxData" }, - { TIFFTAG_CONSECUTIVEBADFAXLINES, "ConsecutiveBadFaxLines" }, - { TIFFTAG_SUBIFD, "SubIFD" }, - { TIFFTAG_INKSET, "InkSet" }, - { TIFFTAG_INKNAMES, "InkNames" }, - { TIFFTAG_NUMBEROFINKS, "NumberOfInks" }, - { TIFFTAG_DOTRANGE, "DotRange" }, - { TIFFTAG_TARGETPRINTER, "TargetPrinter" }, - { TIFFTAG_EXTRASAMPLES, "ExtraSamples" }, - { TIFFTAG_SAMPLEFORMAT, "SampleFormat" }, - { TIFFTAG_SMINSAMPLEVALUE, "SMinSampleValue" }, - { TIFFTAG_SMAXSAMPLEVALUE, "SMaxSampleValue" }, - { TIFFTAG_JPEGPROC, "JPEGProcessingMode" }, - { TIFFTAG_JPEGIFOFFSET, "JPEGInterchangeFormat" }, - { TIFFTAG_JPEGIFBYTECOUNT, "JPEGInterchangeFormatLength" }, - { TIFFTAG_JPEGRESTARTINTERVAL,"JPEGRestartInterval" }, - { TIFFTAG_JPEGLOSSLESSPREDICTORS,"JPEGLosslessPredictors" }, - { TIFFTAG_JPEGPOINTTRANSFORM,"JPEGPointTransform" }, - { TIFFTAG_JPEGTABLES, "JPEGTables" }, - { TIFFTAG_JPEGQTABLES, "JPEGQTables" }, - { TIFFTAG_JPEGDCTABLES, "JPEGDCTables" }, - { TIFFTAG_JPEGACTABLES, "JPEGACTables" }, - { TIFFTAG_YCBCRCOEFFICIENTS,"YCbCrCoefficients" }, - { TIFFTAG_YCBCRSUBSAMPLING, "YCbCrSubsampling" }, - { TIFFTAG_YCBCRPOSITIONING, "YCbCrPositioning" }, - { TIFFTAG_REFERENCEBLACKWHITE, "ReferenceBlackWhite" }, - { TIFFTAG_REFPTS, "IgReferencePoints (Island Graphics)" }, - { TIFFTAG_REGIONTACKPOINT, "IgRegionTackPoint (Island Graphics)" }, - { TIFFTAG_REGIONWARPCORNERS,"IgRegionWarpCorners (Island Graphics)" }, - { TIFFTAG_REGIONAFFINE, "IgRegionAffine (Island Graphics)" }, - { TIFFTAG_MATTEING, "OBSOLETE Matteing (Silicon Graphics)" }, - { TIFFTAG_DATATYPE, "OBSOLETE DataType (Silicon Graphics)" }, - { TIFFTAG_IMAGEDEPTH, "ImageDepth (Silicon Graphics)" }, - { TIFFTAG_TILEDEPTH, "TileDepth (Silicon Graphics)" }, - { 32768, "OLD BOGUS Matteing tag" }, - { TIFFTAG_COPYRIGHT, "Copyright" }, - { TIFFTAG_ICCPROFILE, "ICC Profile" }, - { TIFFTAG_JBIGOPTIONS, "JBIG Options" }, - { TIFFTAG_STONITS, "StoNits" }, -}; -#define NTAGS (sizeof (tagnames) / sizeof (tagnames[0])) - -static void -PrintTag(FILE* fd, uint16 tag) -{ - const struct tagname *tp; - - for (tp = tagnames; tp < &tagnames[NTAGS]; tp++) - if (tp->tag == tag) { - fprintf(fd, "%s (%u)", tp->name, tag); - return; - } - fprintf(fd, "%u (%#x)", tag, tag); -} - -static void -PrintType(FILE* fd, uint16 type) -{ - static const char *typenames[] = { - "0", - "BYTE", - "ASCII", - "SHORT", - "LONG", - "RATIONAL", - "SBYTE", - "UNDEFINED", - "SSHORT", - "SLONG", - "SRATIONAL", - "FLOAT", - "DOUBLE", - "IFD", - "14", - "15", - "LONG8", - "SLONG8", - "IFD8" - }; -#define NTYPES (sizeof (typenames) / sizeof (typenames[0])) - - if (type < NTYPES) - fprintf(fd, "%s (%u)", typenames[type], type); - else - fprintf(fd, "%u (%#x)", type, type); -} -#undef NTYPES - -#include - -static void -PrintASCII(FILE* fd, uint32 cc, const unsigned char* cp) -{ - for (; cc > 0; cc--, cp++) { - const char* tp; - - if (isprint(*cp)) { - fputc(*cp, fd); - continue; - } - for (tp = "\tt\bb\rr\nn\vv"; *tp; tp++) - if (*tp++ == *cp) - break; - if (*tp) - fprintf(fd, "\\%c", *tp); - else if (*cp) - fprintf(fd, "\\%03o", *cp); - else - fprintf(fd, "\\0"); - } -} - -static void -PrintData(FILE* fd, uint16 type, uint32 count, unsigned char* data) -{ - char* sep = ""; - - switch (type) { - case TIFF_BYTE: - while (count-- > 0) - fprintf(fd, bytefmt, sep, *data++), sep = " "; - break; - case TIFF_SBYTE: - while (count-- > 0) - fprintf(fd, sbytefmt, sep, *(char *)data++), sep = " "; - break; - case TIFF_UNDEFINED: - while (count-- > 0) - fprintf(fd, bytefmt, sep, *data++), sep = " "; - break; - case TIFF_ASCII: - PrintASCII(fd, count, data); - break; - case TIFF_SHORT: { - uint16 *wp = (uint16*)data; - while (count-- > 0) - fprintf(fd, shortfmt, sep, *wp++), sep = " "; - break; - } - case TIFF_SSHORT: { - int16 *wp = (int16*)data; - while (count-- > 0) - fprintf(fd, sshortfmt, sep, *wp++), sep = " "; - break; - } - case TIFF_LONG: { - uint32 *lp = (uint32*)data; - while (count-- > 0) { - fprintf(fd, longfmt, sep, (unsigned long) *lp++); - sep = " "; - } - break; - } - case TIFF_SLONG: { - int32 *lp = (int32*)data; - while (count-- > 0) - fprintf(fd, slongfmt, sep, (long) *lp++), sep = " "; - break; - } - case TIFF_LONG8: { - uint64 *llp = (uint64*)data; - while (count-- > 0) { -#if defined(__WIN32__) && defined(_MSC_VER) - fprintf(fd, long8fmt, sep, (unsigned __int64) *llp++); -#else - fprintf(fd, long8fmt, sep, (unsigned long long) *llp++); -#endif - sep = " "; - } - break; - } - case TIFF_SLONG8: { - int64 *llp = (int64*)data; - while (count-- > 0) -#if defined(__WIN32__) && defined(_MSC_VER) - fprintf(fd, slong8fmt, sep, (__int64) *llp++), sep = " "; -#else - fprintf(fd, slong8fmt, sep, (long long) *llp++), sep = " "; -#endif - break; - } - case TIFF_RATIONAL: { - uint32 *lp = (uint32*)data; - while (count-- > 0) { - if (lp[1] == 0) - fprintf(fd, "%sNan (%lu/%lu)", sep, - (unsigned long) lp[0], - (unsigned long) lp[1]); - else - fprintf(fd, rationalfmt, sep, - (double)lp[0] / (double)lp[1]); - sep = " "; - lp += 2; - } - break; - } - case TIFF_SRATIONAL: { - int32 *lp = (int32*)data; - while (count-- > 0) { - if (lp[1] == 0) - fprintf(fd, "%sNan (%ld/%ld)", sep, - (long) lp[0], (long) lp[1]); - else - fprintf(fd, srationalfmt, sep, - (double)lp[0] / (double)lp[1]); - sep = " "; - lp += 2; - } - break; - } - case TIFF_FLOAT: { - float *fp = (float *)data; - while (count-- > 0) - fprintf(fd, floatfmt, sep, *fp++), sep = " "; - break; - } - case TIFF_DOUBLE: { - double *dp = (double *)data; - while (count-- > 0) - fprintf(fd, doublefmt, sep, *dp++), sep = " "; - break; - } - case TIFF_IFD: { - uint32 *lp = (uint32*)data; - while (count-- > 0) { - fprintf(fd, ifdfmt, sep, (unsigned long) *lp++); - sep = " "; - } - break; - } - case TIFF_IFD8: { - uint64 *llp = (uint64*)data; - while (count-- > 0) { -#if defined(__WIN32__) && defined(_MSC_VER) - fprintf(fd, ifd8fmt, sep, (unsigned __int64) *llp++); -#else - fprintf(fd, ifd8fmt, sep, (unsigned long long) *llp++); -#endif - sep = " "; - } - break; - } - } -} - -static void -ReadError(char* what) -{ - Fatal("Error while reading %s", what); -} - -#include - -static void -vError(FILE* fd, const char* fmt, va_list ap) -{ - fprintf(fd, "%s: ", curfile); - vfprintf(fd, fmt, ap); - fprintf(fd, ".\n"); -} - -static void -Error(const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - vError(stderr, fmt, ap); - va_end(ap); -} - -static void -Fatal(const char* fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - vError(stderr, fmt, ap); - va_end(ap); - exit(-1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffgt.c b/tiff/tools/tiffgt.c deleted file mode 100755 index 3907d30..0000000 --- a/tiff/tools/tiffgt.c +++ /dev/null @@ -1,470 +0,0 @@ -/* $Id: tiffgt.c,v 1.11 2014-12-26 16:06:41 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * Copyright (c) 2003, Andrey Kiselev - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" -#include -#include -#include -#include - -#if HAVE_APPLE_OPENGL_FRAMEWORK -# include -# include -#else -# include -# include -#endif - -#include "tiffio.h" -#include "tiffiop.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -static uint32 width = 0, height = 0; /* window width & height */ -static uint32* raster = NULL; /* displayable image */ -static TIFFRGBAImage img; -static int order0 = 0, order; -static uint16 photo0 = (uint16) -1, photo; -static int stoponerr = 0; /* stop on read error */ -static int verbose = 0; -#define TITLE_LENGTH 1024 -static char title[TITLE_LENGTH]; /* window title line */ -static uint32 xmax, ymax; -static char** filelist = NULL; -static int fileindex; -static int filenum; -static TIFFErrorHandler oerror; -static TIFFErrorHandler owarning; - -static void cleanup_and_exit(void); -static int initImage(void); -static int prevImage(void); -static int nextImage(void); -static void setWindowSize(void); -static void usage(void); -static uint16 photoArg(const char*); -static void raster_draw(void); -static void raster_reshape(int, int); -static void raster_keys(unsigned char, int, int); -static void raster_special(int, int, int); - -extern char* optarg; -extern int optind; -static TIFF* tif = NULL; - -int -main(int argc, char* argv[]) -{ - int c; - int dirnum = -1; - uint32 diroff = 0; - - oerror = TIFFSetErrorHandler(NULL); - owarning = TIFFSetWarningHandler(NULL); - while ((c = getopt(argc, argv, "d:o:p:eflmsvw?")) != -1) - switch (c) { - case 'd': - dirnum = atoi(optarg); - break; - case 'e': - oerror = TIFFSetErrorHandler(oerror); - break; - case 'l': - order0 = FILLORDER_LSB2MSB; - break; - case 'm': - order0 = FILLORDER_MSB2LSB; - break; - case 'o': - diroff = strtoul(optarg, NULL, 0); - break; - case 'p': - photo0 = photoArg(optarg); - break; - case 's': - stoponerr = 1; - break; - case 'w': - owarning = TIFFSetWarningHandler(owarning); - break; - case 'v': - verbose = 1; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - filenum = argc - optind; - if ( filenum < 1) - usage(); - - glutInit(&argc, argv); - glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); - - /* - * Get the screen size - */ - xmax = glutGet(GLUT_SCREEN_WIDTH); - ymax = glutGet(GLUT_SCREEN_HEIGHT); - - /* - * Use 90% of the screen size - */ - xmax = xmax - xmax / 10.0; - ymax = ymax - ymax / 10.0; - - filelist = (char **) _TIFFmalloc(filenum * sizeof(char*)); - if (!filelist) { - TIFFError(argv[0], "Can not allocate space for the file list."); - return 1; - } - _TIFFmemcpy(filelist, argv + optind, filenum * sizeof(char*)); - fileindex = -1; - if (nextImage() < 0) { - _TIFFfree(filelist); - return 2; - } - /* - * Set initial directory if user-specified - * file was opened successfully. - */ - if (dirnum != -1 && !TIFFSetDirectory(tif, dirnum)) - TIFFError(argv[0], "Error, seeking to directory %d", dirnum); - if (diroff != 0 && !TIFFSetSubDirectory(tif, diroff)) - TIFFError(argv[0], "Error, setting subdirectory at %#x", diroff); - order = order0; - photo = photo0; - if (initImage() < 0){ - _TIFFfree(filelist); - return 3; - } - /* - * Create a new window or reconfigure an existing - * one to suit the image to be displayed. - */ - glutInitWindowSize(width, height); - snprintf(title, TITLE_LENGTH - 1, "%s [%u]", filelist[fileindex], - (unsigned int) TIFFCurrentDirectory(tif)); - glutCreateWindow(title); - glutDisplayFunc(raster_draw); - glutReshapeFunc(raster_reshape); - glutKeyboardFunc(raster_keys); - glutSpecialFunc(raster_special); - glutMainLoop(); - - cleanup_and_exit(); - return 0; -} - -static void -cleanup_and_exit(void) -{ - TIFFRGBAImageEnd(&img); - if (filelist != NULL) - _TIFFfree(filelist); - if (raster != NULL) - _TIFFfree(raster); - if (tif != NULL) - TIFFClose(tif); - exit(0); -} - -static int -initImage(void) -{ - uint32 w, h; - - if (order) - TIFFSetField(tif, TIFFTAG_FILLORDER, order); - if (photo != (uint16) -1) - TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photo); - if (!TIFFRGBAImageBegin(&img, tif, stoponerr, title)) { - TIFFError(filelist[fileindex], "%s", title); - TIFFClose(tif); - tif = NULL; - return -1; - } - - /* - * Setup the image raster as required. - */ - h = img.height; - w = img.width; - if (h > ymax) { - w = (int)(w * ((float)ymax / h)); - h = ymax; - } - if (w > xmax) { - h = (int)(h * ((float)xmax / w)); - w = xmax; - } - - if (w != width || h != height) { - uint32 rastersize = - _TIFFMultiply32(tif, img.width, img.height, "allocating raster buffer"); - if (raster != NULL) - _TIFFfree(raster), raster = NULL; - raster = (uint32*) _TIFFCheckMalloc(tif, rastersize, sizeof (uint32), - "allocating raster buffer"); - if (raster == NULL) { - width = height = 0; - TIFFError(filelist[fileindex], "No space for raster buffer"); - cleanup_and_exit(); - } - width = w; - height = h; - } - TIFFRGBAImageGet(&img, raster, img.width, img.height); -#if HOST_BIGENDIAN - TIFFSwabArrayOfLong(raster,img.width*img.height); -#endif - return 0; -} - -static int -prevImage(void) -{ - if (fileindex > 0) - fileindex--; - else if (tif) - return fileindex; - if (tif) - TIFFClose(tif); - tif = TIFFOpen(filelist[fileindex], "r"); - if (tif == NULL) - return -1; - return fileindex; -} - -static int -nextImage(void) -{ - if (fileindex < filenum - 1) - fileindex++; - else if (tif) - return fileindex; - if (tif) - TIFFClose(tif); - tif = TIFFOpen(filelist[fileindex], "r"); - if (tif == NULL) - return -1; - return fileindex; -} - -static void -setWindowSize(void) -{ - glutReshapeWindow(width, height); -} - -static void -raster_draw(void) -{ - glDrawPixels(img.width, img.height, GL_RGBA, GL_UNSIGNED_BYTE, (const GLvoid *) raster); -} - -static void -raster_reshape(int win_w, int win_h) -{ - GLfloat xratio = (GLfloat)win_w/img.width; - GLfloat yratio = (GLfloat)win_h/img.height; - int ratio = (int)(((xratio > yratio)?xratio:yratio) * 100); - - glPixelZoom(xratio, yratio); - glViewport(0, 0, win_w, win_h); - snprintf(title, 1024, "%s [%u] %d%%", filelist[fileindex], - (unsigned int) TIFFCurrentDirectory(tif), ratio); - glutSetWindowTitle(title); -} - -static void -raster_keys(unsigned char key, int x, int y) -{ - (void) x; - (void) y; - switch (key) { - case 'b': /* photometric MinIsBlack */ - photo = PHOTOMETRIC_MINISBLACK; - initImage(); - break; - case 'l': /* lsb-to-msb FillOrder */ - order = FILLORDER_LSB2MSB; - initImage(); - break; - case 'm': /* msb-to-lsb FillOrder */ - order = FILLORDER_MSB2LSB; - initImage(); - break; - case 'w': /* photometric MinIsWhite */ - photo = PHOTOMETRIC_MINISWHITE; - initImage(); - break; - case 'W': /* toggle warnings */ - owarning = TIFFSetWarningHandler(owarning); - initImage(); - break; - case 'E': /* toggle errors */ - oerror = TIFFSetErrorHandler(oerror); - initImage(); - break; - case 'z': /* reset to defaults */ - case 'Z': - order = order0; - photo = photo0; - if (owarning == NULL) - owarning = TIFFSetWarningHandler(NULL); - if (oerror == NULL) - oerror = TIFFSetErrorHandler(NULL); - initImage(); - break; - case 'q': /* exit */ - case '\033': - cleanup_and_exit(); - } - glutPostRedisplay(); -} - -static void -raster_special(int key, int x, int y) -{ - (void) x; - (void) y; - switch (key) { - case GLUT_KEY_PAGE_UP: /* previous logical image */ - if (TIFFCurrentDirectory(tif) > 0) { - if (TIFFSetDirectory(tif, - TIFFCurrentDirectory(tif)-1)) { - initImage(); - setWindowSize(); - } - } else { - TIFFRGBAImageEnd(&img); - prevImage(); - initImage(); - setWindowSize(); - } - break; - case GLUT_KEY_PAGE_DOWN: /* next logical image */ - if (!TIFFLastDirectory(tif)) { - if (TIFFReadDirectory(tif)) { - initImage(); - setWindowSize(); - } - } else { - TIFFRGBAImageEnd(&img); - nextImage(); - initImage(); - setWindowSize(); - } - break; - case GLUT_KEY_HOME: /* 1st image in current file */ - if (TIFFSetDirectory(tif, 0)) { - TIFFRGBAImageEnd(&img); - initImage(); - setWindowSize(); - } - break; - case GLUT_KEY_END: /* last image in current file */ - TIFFRGBAImageEnd(&img); - while (!TIFFLastDirectory(tif)) - TIFFReadDirectory(tif); - initImage(); - setWindowSize(); - break; - } - glutPostRedisplay(); -} - - - -char* stuff[] = { -"usage: tiffgt [options] file.tif", -"where options are:", -" -c use colormap visual", -" -d dirnum set initial directory (default is 0)", -" -e enable display of TIFF error messages", -" -l force lsb-to-msb FillOrder", -" -m force msb-to-lsb FillOrder", -" -o offset set initial directory offset", -" -p photo override photometric interpretation", -" -r use fullcolor visual", -" -s stop decoding on first error (default is ignore errors)", -" -v enable verbose mode", -" -w enable display of TIFF warning messages", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -static uint16 -photoArg(const char* arg) -{ - if (strcmp(arg, "miniswhite") == 0) - return (PHOTOMETRIC_MINISWHITE); - else if (strcmp(arg, "minisblack") == 0) - return (PHOTOMETRIC_MINISBLACK); - else if (strcmp(arg, "rgb") == 0) - return (PHOTOMETRIC_RGB); - else if (strcmp(arg, "palette") == 0) - return (PHOTOMETRIC_PALETTE); - else if (strcmp(arg, "mask") == 0) - return (PHOTOMETRIC_MASK); - else if (strcmp(arg, "separated") == 0) - return (PHOTOMETRIC_SEPARATED); - else if (strcmp(arg, "ycbcr") == 0) - return (PHOTOMETRIC_YCBCR); - else if (strcmp(arg, "cielab") == 0) - return (PHOTOMETRIC_CIELAB); - else if (strcmp(arg, "logl") == 0) - return (PHOTOMETRIC_LOGL); - else if (strcmp(arg, "logluv") == 0) - return (PHOTOMETRIC_LOGLUV); - else - return ((uint16) -1); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffinfo.c b/tiff/tools/tiffinfo.c deleted file mode 100755 index 8493439..0000000 --- a/tiff/tools/tiffinfo.c +++ /dev/null @@ -1,472 +0,0 @@ -/* $Id: tiffinfo.c,v 1.22 2013-07-10 00:44:22 fwarmerdam Exp $ */ - -/* - * Copyright (c) 1988-1997 Sam Leffler - * Copyright (c) 1991-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_STRINGS_H -# include -#endif - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffiop.h" - -static TIFFErrorHandler old_error_handler = 0; -static int status = 0; /* exit status */ -static int showdata = 0; /* show data */ -static int rawdata = 0; /* show raw/decoded data */ -static int showwords = 0; /* show data as bytes/words */ -static int readdata = 0; /* read data in file */ -static int stoponerr = 1; /* stop on first read error */ - -static void usage(void); -static void tiffinfo(TIFF*, uint16, long, int); - -static void -PrivateErrorHandler(const char* module, const char* fmt, va_list ap) -{ - if (old_error_handler) - (*old_error_handler)(module,fmt,ap); - status = 1; -} - -int -main(int argc, char* argv[]) -{ - int dirnum = -1, multiplefiles, c; - uint16 order = 0; - TIFF* tif; - extern int optind; - extern char* optarg; - long flags = 0; - uint64 diroff = 0; - int chopstrips = 0; /* disable strip chopping */ - - while ((c = getopt(argc, argv, "f:o:cdDSjilmrsvwz0123456789")) != -1) - switch (c) { - case '0': case '1': case '2': case '3': - case '4': case '5': case '6': case '7': - case '8': case '9': - dirnum = atoi(&argv[optind-1][1]); - break; - case 'd': - showdata++; - /* fall thru... */ - case 'D': - readdata++; - break; - case 'c': - flags |= TIFFPRINT_COLORMAP | TIFFPRINT_CURVES; - break; - case 'f': /* fill order */ - if (streq(optarg, "lsb2msb")) - order = FILLORDER_LSB2MSB; - else if (streq(optarg, "msb2lsb")) - order = FILLORDER_MSB2LSB; - else - usage(); - break; - case 'i': - stoponerr = 0; - break; - case 'o': - diroff = strtoul(optarg, NULL, 0); - break; - case 'j': - flags |= TIFFPRINT_JPEGQTABLES | - TIFFPRINT_JPEGACTABLES | - TIFFPRINT_JPEGDCTABLES; - break; - case 'r': - rawdata = 1; - break; - case 's': - flags |= TIFFPRINT_STRIPS; - break; - case 'w': - showwords = 1; - break; - case 'z': - chopstrips = 1; - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (optind >= argc) - usage(); - - old_error_handler = TIFFSetErrorHandler(PrivateErrorHandler); - - multiplefiles = (argc - optind > 1); - for (; optind < argc; optind++) { - if (multiplefiles) - printf("%s:\n", argv[optind]); - tif = TIFFOpen(argv[optind], chopstrips ? "rC" : "rc"); - if (tif != NULL) { - if (dirnum != -1) { - if (TIFFSetDirectory(tif, (tdir_t) dirnum)) - tiffinfo(tif, order, flags, 1); - } else if (diroff != 0) { - if (TIFFSetSubDirectory(tif, diroff)) - tiffinfo(tif, order, flags, 1); - } else { - do { - toff_t offset=0; - - tiffinfo(tif, order, flags, 1); - if (TIFFGetField(tif, TIFFTAG_EXIFIFD, - &offset)) { - if (TIFFReadEXIFDirectory(tif, offset)) { - tiffinfo(tif, order, flags, 0); - } - } - } while (TIFFReadDirectory(tif)); - } - TIFFClose(tif); - } - } - return (status); -} - -char* stuff[] = { -"usage: tiffinfo [options] input...", -"where options are:", -" -D read data", -" -i ignore read errors", -" -c display data for grey/color response curve or colormap", -" -d display raw/decoded image data", -" -f lsb2msb force lsb-to-msb FillOrder for input", -" -f msb2lsb force msb-to-lsb FillOrder for input", -" -j show JPEG tables", -" -o offset set initial directory offset", -" -r read/display raw image data instead of decoded data", -" -s display strip offsets and byte counts", -" -w display raw data in words rather than bytes", -" -z enable strip chopping", -" -# set initial directory (first directory is # 0)", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -static void -ShowStrip(tstrip_t strip, unsigned char* pp, uint32 nrow, tsize_t scanline) -{ - register tsize_t cc; - - printf("Strip %lu:\n", (unsigned long) strip); - while (nrow-- > 0) { - for (cc = 0; cc < scanline; cc++) { - printf(" %02x", *pp++); - if (((cc+1) % 24) == 0) - putchar('\n'); - } - putchar('\n'); - } -} - -void -TIFFReadContigStripData(TIFF* tif) -{ - unsigned char *buf; - tsize_t scanline = TIFFScanlineSize(tif); - - buf = (unsigned char *)_TIFFmalloc(TIFFStripSize(tif)); - if (buf) { - uint32 row, h=0; - uint32 rowsperstrip = (uint32)-1; - - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - for (row = 0; row < h; row += rowsperstrip) { - uint32 nrow = (row+rowsperstrip > h ? - h-row : rowsperstrip); - tstrip_t strip = TIFFComputeStrip(tif, row, 0); - if (TIFFReadEncodedStrip(tif, strip, buf, nrow*scanline) < 0) { - if (stoponerr) - break; - } else if (showdata) - ShowStrip(strip, buf, nrow, scanline); - } - _TIFFfree(buf); - } -} - -void -TIFFReadSeparateStripData(TIFF* tif) -{ - unsigned char *buf; - tsize_t scanline = TIFFScanlineSize(tif); - - buf = (unsigned char *)_TIFFmalloc(TIFFStripSize(tif)); - if (buf) { - uint32 row, h=0; - uint32 rowsperstrip = (uint32)-1; - tsample_t s, samplesperpixel=0; - - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip); - TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - for (row = 0; row < h; row += rowsperstrip) { - for (s = 0; s < samplesperpixel; s++) { - uint32 nrow = (row+rowsperstrip > h ? - h-row : rowsperstrip); - tstrip_t strip = TIFFComputeStrip(tif, row, s); - if (TIFFReadEncodedStrip(tif, strip, buf, nrow*scanline) < 0) { - if (stoponerr) - break; - } else if (showdata) - ShowStrip(strip, buf, nrow, scanline); - } - } - _TIFFfree(buf); - } -} - -static void -ShowTile(uint32 row, uint32 col, tsample_t sample, - unsigned char* pp, uint32 nrow, tsize_t rowsize) -{ - uint32 cc; - - printf("Tile (%lu,%lu", (unsigned long) row, (unsigned long) col); - if (sample != (tsample_t) -1) - printf(",%u", sample); - printf("):\n"); - while (nrow-- > 0) { - for (cc = 0; cc < (uint32) rowsize; cc++) { - printf(" %02x", *pp++); - if (((cc+1) % 24) == 0) - putchar('\n'); - } - putchar('\n'); - } -} - -void -TIFFReadContigTileData(TIFF* tif) -{ - unsigned char *buf; - tsize_t rowsize = TIFFTileRowSize(tif); - - buf = (unsigned char *)_TIFFmalloc(TIFFTileSize(tif)); - if (buf) { - uint32 tw=0, th=0, w=0, h=0; - uint32 row, col; - - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - for (row = 0; row < h; row += th) { - for (col = 0; col < w; col += tw) { - if (TIFFReadTile(tif, buf, col, row, 0, 0) < 0) { - if (stoponerr) - break; - } else if (showdata) - ShowTile(row, col, (tsample_t) -1, buf, th, rowsize); - } - } - _TIFFfree(buf); - } -} - -void -TIFFReadSeparateTileData(TIFF* tif) -{ - unsigned char *buf; - tsize_t rowsize = TIFFTileRowSize(tif); - - buf = (unsigned char *)_TIFFmalloc(TIFFTileSize(tif)); - if (buf) { - uint32 tw=0, th=0, w=0, h=0; - uint32 row, col; - tsample_t s, samplesperpixel=0; - - TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w); - TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h); - TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw); - TIFFGetField(tif, TIFFTAG_TILELENGTH, &th); - TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - for (row = 0; row < h; row += th) { - for (col = 0; col < w; col += tw) { - for (s = 0; s < samplesperpixel; s++) { - if (TIFFReadTile(tif, buf, col, row, 0, s) < 0) { - if (stoponerr) - break; - } else if (showdata) - ShowTile(row, col, s, buf, th, rowsize); - } - } - } - _TIFFfree(buf); - } -} - -void -TIFFReadData(TIFF* tif) -{ - uint16 config = PLANARCONFIG_CONTIG; - - TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &config); - if (TIFFIsTiled(tif)) { - if (config == PLANARCONFIG_CONTIG) - TIFFReadContigTileData(tif); - else - TIFFReadSeparateTileData(tif); - } else { - if (config == PLANARCONFIG_CONTIG) - TIFFReadContigStripData(tif); - else - TIFFReadSeparateStripData(tif); - } -} - -static void -ShowRawBytes(unsigned char* pp, uint32 n) -{ - uint32 i; - - for (i = 0; i < n; i++) { - printf(" %02x", *pp++); - if (((i+1) % 24) == 0) - printf("\n "); - } - putchar('\n'); -} - -static void -ShowRawWords(uint16* pp, uint32 n) -{ - uint32 i; - - for (i = 0; i < n; i++) { - printf(" %04x", *pp++); - if (((i+1) % 15) == 0) - printf("\n "); - } - putchar('\n'); -} - -void -TIFFReadRawData(TIFF* tif, int bitrev) -{ - tstrip_t nstrips = TIFFNumberOfStrips(tif); - const char* what = TIFFIsTiled(tif) ? "Tile" : "Strip"; - uint64* stripbc=NULL; - - TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &stripbc); - if (nstrips > 0) { - uint32 bufsize = (uint32) stripbc[0]; - tdata_t buf = _TIFFmalloc(bufsize); - tstrip_t s; - - for (s = 0; s < nstrips; s++) { - if (stripbc[s] > bufsize) { - buf = _TIFFrealloc(buf, (tmsize_t)stripbc[s]); - bufsize = (uint32) stripbc[s]; - } - if (buf == NULL) { - fprintf(stderr, - "Cannot allocate buffer to read strip %lu\n", - (unsigned long) s); - break; - } - if (TIFFReadRawStrip(tif, s, buf, (tmsize_t) stripbc[s]) < 0) { - fprintf(stderr, "Error reading strip %lu\n", - (unsigned long) s); - if (stoponerr) - break; - } else if (showdata) { - if (bitrev) { - TIFFReverseBits(buf, (tmsize_t)stripbc[s]); - printf("%s %lu: (bit reversed)\n ", - what, (unsigned long) s); - } else - printf("%s %lu:\n ", what, - (unsigned long) s); - if (showwords) - ShowRawWords((uint16*) buf, (uint32) stripbc[s]>>1); - else - ShowRawBytes((unsigned char*) buf, (uint32) stripbc[s]); - } - } - if (buf != NULL) - _TIFFfree(buf); - } -} - -static void -tiffinfo(TIFF* tif, uint16 order, long flags, int is_image) -{ - TIFFPrintDirectory(tif, stdout, flags); - if (!readdata || !is_image) - return; - if (rawdata) { - if (order) { - uint16 o; - TIFFGetFieldDefaulted(tif, - TIFFTAG_FILLORDER, &o); - TIFFReadRawData(tif, o != order); - } else - TIFFReadRawData(tif, 0); - } else { - if (order) - TIFFSetField(tif, TIFFTAG_FILLORDER, order); - TIFFReadData(tif); - } -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffmedian.c b/tiff/tools/tiffmedian.c deleted file mode 100755 index 6501494..0000000 --- a/tiff/tools/tiffmedian.c +++ /dev/null @@ -1,906 +0,0 @@ -/* $Id: tiffmedian.c,v 1.10 2010-03-10 18:56:50 bfriesen Exp $ */ - -/* - * Apply median cut on an image. - * - * tiffmedian [-c n] [-f] input output - * -C n - set colortable size. Default is 256. - * -f - use Floyd-Steinberg dithering. - * -c lzw - compress output with LZW - * -c none - use no compression on output - * -c packbits - use packbits compression on output - * -r n - create output with n rows/strip of data - * (by default the compression scheme and rows/strip are taken - * from the input file) - * - * Notes: - * - * [1] Floyd-Steinberg dither: - * I should point out that the actual fractions we used were, assuming - * you are at X, moving left to right: - * - * X 7/16 - * 3/16 5/16 1/16 - * - * Note that the error goes to four neighbors, not three. I think this - * will probably do better (at least for black and white) than the - * 3/8-3/8-1/4 distribution, at the cost of greater processing. I have - * seen the 3/8-3/8-1/4 distribution described as "our" algorithm before, - * but I have no idea who the credit really belongs to. - - * Also, I should add that if you do zig-zag scanning (see my immediately - * previous message), it is sufficient (but not quite as good) to send - * half the error one pixel ahead (e.g. to the right on lines you scan - * left to right), and half one pixel straight down. Again, this is for - * black and white; I've not tried it with color. - * -- - * Lou Steinberg - * - * [2] Color Image Quantization for Frame Buffer Display, Paul Heckbert, - * Siggraph '82 proceedings, pp. 297-307 - */ - -#include "tif_config.h" - -#include -#include -#include - -#ifdef HAVE_UNISTD_H -# include -#endif - -#ifdef NEED_LIBPORT -# include "libport.h" -#endif - -#include "tiffio.h" - -#define MAX_CMAP_SIZE 256 - -#define streq(a,b) (strcmp(a,b) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) - -#define COLOR_DEPTH 8 -#define MAX_COLOR 256 - -#define B_DEPTH 5 /* # bits/pixel to use */ -#define B_LEN (1L< MAX_CMAP_SIZE) { - fprintf(stderr, - "-c: colormap too big, max %d\n", - MAX_CMAP_SIZE); - usage(); - } - break; - case 'f': /* dither */ - dither = 1; - break; - case 'r': /* rows/strip */ - rowsperstrip = atoi(optarg); - break; - case '?': - usage(); - /*NOTREACHED*/ - } - if (argc - optind != 2) - usage(); - in = TIFFOpen(argv[optind], "r"); - if (in == NULL) - return (-1); - TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &imagewidth); - TIFFGetField(in, TIFFTAG_IMAGELENGTH, &imagelength); - TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample); - TIFFGetField(in, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel); - if (bitspersample != 8 && bitspersample != 16) { - fprintf(stderr, "%s: Image must have at least 8-bits/sample\n", - argv[optind]); - return (-3); - } - if (!TIFFGetField(in, TIFFTAG_PHOTOMETRIC, &photometric) || - photometric != PHOTOMETRIC_RGB || samplesperpixel < 3) { - fprintf(stderr, "%s: Image must have RGB data\n", argv[optind]); - return (-4); - } - TIFFGetField(in, TIFFTAG_PLANARCONFIG, &config); - if (config != PLANARCONFIG_CONTIG) { - fprintf(stderr, "%s: Can only handle contiguous data packing\n", - argv[optind]); - return (-5); - } - - /* - * STEP 1: create empty boxes - */ - usedboxes = NULL; - box_list = freeboxes = (Colorbox *)_TIFFmalloc(num_colors*sizeof (Colorbox)); - freeboxes[0].next = &freeboxes[1]; - freeboxes[0].prev = NULL; - for (i = 1; i < num_colors-1; ++i) { - freeboxes[i].next = &freeboxes[i+1]; - freeboxes[i].prev = &freeboxes[i-1]; - } - freeboxes[num_colors-1].next = NULL; - freeboxes[num_colors-1].prev = &freeboxes[num_colors-2]; - - /* - * STEP 2: get histogram, initialize first box - */ - ptr = freeboxes; - freeboxes = ptr->next; - if (freeboxes) - freeboxes->prev = NULL; - ptr->next = usedboxes; - usedboxes = ptr; - if (ptr->next) - ptr->next->prev = ptr; - get_histogram(in, ptr); - - /* - * STEP 3: continually subdivide boxes until no more free - * boxes remain or until all colors assigned. - */ - while (freeboxes != NULL) { - ptr = largest_box(); - if (ptr != NULL) - splitbox(ptr); - else - freeboxes = NULL; - } - - /* - * STEP 4: assign colors to all boxes - */ - for (i = 0, ptr = usedboxes; ptr != NULL; ++i, ptr = ptr->next) { - rm[i] = ((ptr->rmin + ptr->rmax) << COLOR_SHIFT) / 2; - gm[i] = ((ptr->gmin + ptr->gmax) << COLOR_SHIFT) / 2; - bm[i] = ((ptr->bmin + ptr->bmax) << COLOR_SHIFT) / 2; - } - - /* We're done with the boxes now */ - _TIFFfree(box_list); - freeboxes = usedboxes = NULL; - - /* - * STEP 5: scan histogram and map all values to closest color - */ - /* 5a: create cell list as described in Heckbert[2] */ - ColorCells = (C_cell **)_TIFFmalloc(C_LEN*C_LEN*C_LEN*sizeof (C_cell*)); - _TIFFmemset(ColorCells, 0, C_LEN*C_LEN*C_LEN*sizeof (C_cell*)); - /* 5b: create mapping from truncated pixel space to color - table entries */ - map_colortable(); - - /* - * STEP 6: scan image, match input values to table entries - */ - out = TIFFOpen(argv[optind+1], "w"); - if (out == NULL) - return (-2); - - CopyField(TIFFTAG_SUBFILETYPE, longv); - CopyField(TIFFTAG_IMAGEWIDTH, longv); - TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, (short)COLOR_DEPTH); - if (compression != (uint16)-1) { - TIFFSetField(out, TIFFTAG_COMPRESSION, compression); - switch (compression) { - case COMPRESSION_LZW: - case COMPRESSION_DEFLATE: - if (predictor != 0) - TIFFSetField(out, TIFFTAG_PREDICTOR, predictor); - break; - } - } else - CopyField(TIFFTAG_COMPRESSION, compression); - TIFFSetField(out, TIFFTAG_PHOTOMETRIC, (short)PHOTOMETRIC_PALETTE); - CopyField(TIFFTAG_ORIENTATION, shortv); - TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, (short)1); - CopyField(TIFFTAG_PLANARCONFIG, shortv); - TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, - TIFFDefaultStripSize(out, rowsperstrip)); - CopyField(TIFFTAG_MINSAMPLEVALUE, shortv); - CopyField(TIFFTAG_MAXSAMPLEVALUE, shortv); - CopyField(TIFFTAG_RESOLUTIONUNIT, shortv); - CopyField(TIFFTAG_XRESOLUTION, floatv); - CopyField(TIFFTAG_YRESOLUTION, floatv); - CopyField(TIFFTAG_XPOSITION, floatv); - CopyField(TIFFTAG_YPOSITION, floatv); - - if (dither) - quant_fsdither(in, out); - else - quant(in, out); - /* - * Scale colormap to TIFF-required 16-bit values. - */ -#define SCALE(x) (((x)*((1L<<16)-1))/255) - for (i = 0; i < MAX_CMAP_SIZE; ++i) { - rm[i] = SCALE(rm[i]); - gm[i] = SCALE(gm[i]); - bm[i] = SCALE(bm[i]); - } - TIFFSetField(out, TIFFTAG_COLORMAP, rm, gm, bm); - (void) TIFFClose(out); - return (0); -} - -static int -processCompressOptions(char* opt) -{ - if (streq(opt, "none")) - compression = COMPRESSION_NONE; - else if (streq(opt, "packbits")) - compression = COMPRESSION_PACKBITS; - else if (strneq(opt, "lzw", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_LZW; - } else if (strneq(opt, "zip", 3)) { - char* cp = strchr(opt, ':'); - if (cp) - predictor = atoi(cp+1); - compression = COMPRESSION_DEFLATE; - } else - return (0); - return (1); -} - -char* stuff[] = { -"usage: tiffmedian [options] input.tif output.tif", -"where options are:", -" -r # make each strip have no more than # rows", -" -C # create a colormap with # entries", -" -f use Floyd-Steinberg dithering", -" -c lzw[:opts] compress output with Lempel-Ziv & Welch encoding", -" -c zip[:opts] compress output with deflate encoding", -" -c packbits compress output with packbits encoding", -" -c none use no compression algorithm on output", -"", -"LZW and deflate options:", -" # set predictor value", -"For example, -c lzw:2 to get LZW-encoded data with horizontal differencing", -NULL -}; - -static void -usage(void) -{ - char buf[BUFSIZ]; - int i; - - setbuf(stderr, buf); - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - for (i = 0; stuff[i] != NULL; i++) - fprintf(stderr, "%s\n", stuff[i]); - exit(-1); -} - -static void -get_histogram(TIFF* in, Colorbox* box) -{ - register unsigned char *inptr; - register int red, green, blue; - register uint32 j, i; - unsigned char *inputline; - - inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - if (inputline == NULL) { - fprintf(stderr, "No space for scanline buffer\n"); - exit(-1); - } - box->rmin = box->gmin = box->bmin = 999; - box->rmax = box->gmax = box->bmax = -1; - box->total = imagewidth * imagelength; - - { register uint32 *ptr = &histogram[0][0][0]; - for (i = B_LEN*B_LEN*B_LEN; i-- > 0;) - *ptr++ = 0; - } - for (i = 0; i < imagelength; i++) { - if (TIFFReadScanline(in, inputline, i, 0) <= 0) - break; - inptr = inputline; - for (j = imagewidth; j-- > 0;) { - red = *inptr++ >> COLOR_SHIFT; - green = *inptr++ >> COLOR_SHIFT; - blue = *inptr++ >> COLOR_SHIFT; - if (red < box->rmin) - box->rmin = red; - if (red > box->rmax) - box->rmax = red; - if (green < box->gmin) - box->gmin = green; - if (green > box->gmax) - box->gmax = green; - if (blue < box->bmin) - box->bmin = blue; - if (blue > box->bmax) - box->bmax = blue; - histogram[red][green][blue]++; - } - } - _TIFFfree(inputline); -} - -static Colorbox * -largest_box(void) -{ - register Colorbox *p, *b; - register uint32 size; - - b = NULL; - size = 0; - for (p = usedboxes; p != NULL; p = p->next) - if ((p->rmax > p->rmin || p->gmax > p->gmin || - p->bmax > p->bmin) && p->total > size) - size = (b = p)->total; - return (b); -} - -static void -splitbox(Colorbox* ptr) -{ - uint32 hist2[B_LEN]; - int first=0, last=0; - register Colorbox *new; - register uint32 *iptr, *histp; - register int i, j; - register int ir,ig,ib; - register uint32 sum, sum1, sum2; - enum { RED, GREEN, BLUE } axis; - - /* - * See which axis is the largest, do a histogram along that - * axis. Split at median point. Contract both new boxes to - * fit points and return - */ - i = ptr->rmax - ptr->rmin; - if (i >= ptr->gmax - ptr->gmin && i >= ptr->bmax - ptr->bmin) - axis = RED; - else if (ptr->gmax - ptr->gmin >= ptr->bmax - ptr->bmin) - axis = GREEN; - else - axis = BLUE; - /* get histogram along longest axis */ - switch (axis) { - case RED: - histp = &hist2[ptr->rmin]; - for (ir = ptr->rmin; ir <= ptr->rmax; ++ir) { - *histp = 0; - for (ig = ptr->gmin; ig <= ptr->gmax; ++ig) { - iptr = &histogram[ir][ig][ptr->bmin]; - for (ib = ptr->bmin; ib <= ptr->bmax; ++ib) - *histp += *iptr++; - } - histp++; - } - first = ptr->rmin; - last = ptr->rmax; - break; - case GREEN: - histp = &hist2[ptr->gmin]; - for (ig = ptr->gmin; ig <= ptr->gmax; ++ig) { - *histp = 0; - for (ir = ptr->rmin; ir <= ptr->rmax; ++ir) { - iptr = &histogram[ir][ig][ptr->bmin]; - for (ib = ptr->bmin; ib <= ptr->bmax; ++ib) - *histp += *iptr++; - } - histp++; - } - first = ptr->gmin; - last = ptr->gmax; - break; - case BLUE: - histp = &hist2[ptr->bmin]; - for (ib = ptr->bmin; ib <= ptr->bmax; ++ib) { - *histp = 0; - for (ir = ptr->rmin; ir <= ptr->rmax; ++ir) { - iptr = &histogram[ir][ptr->gmin][ib]; - for (ig = ptr->gmin; ig <= ptr->gmax; ++ig) { - *histp += *iptr; - iptr += B_LEN; - } - } - histp++; - } - first = ptr->bmin; - last = ptr->bmax; - break; - } - /* find median point */ - sum2 = ptr->total / 2; - histp = &hist2[first]; - sum = 0; - for (i = first; i <= last && (sum += *histp++) < sum2; ++i) - ; - if (i == first) - i++; - - /* Create new box, re-allocate points */ - new = freeboxes; - freeboxes = new->next; - if (freeboxes) - freeboxes->prev = NULL; - if (usedboxes) - usedboxes->prev = new; - new->next = usedboxes; - usedboxes = new; - - histp = &hist2[first]; - for (sum1 = 0, j = first; j < i; j++) - sum1 += *histp++; - for (sum2 = 0, j = i; j <= last; j++) - sum2 += *histp++; - new->total = sum1; - ptr->total = sum2; - - new->rmin = ptr->rmin; - new->rmax = ptr->rmax; - new->gmin = ptr->gmin; - new->gmax = ptr->gmax; - new->bmin = ptr->bmin; - new->bmax = ptr->bmax; - switch (axis) { - case RED: - new->rmax = i-1; - ptr->rmin = i; - break; - case GREEN: - new->gmax = i-1; - ptr->gmin = i; - break; - case BLUE: - new->bmax = i-1; - ptr->bmin = i; - break; - } - shrinkbox(new); - shrinkbox(ptr); -} - -static void -shrinkbox(Colorbox* box) -{ - register uint32 *histp; - register int ir, ig, ib; - - if (box->rmax > box->rmin) { - for (ir = box->rmin; ir <= box->rmax; ++ir) - for (ig = box->gmin; ig <= box->gmax; ++ig) { - histp = &histogram[ir][ig][box->bmin]; - for (ib = box->bmin; ib <= box->bmax; ++ib) - if (*histp++ != 0) { - box->rmin = ir; - goto have_rmin; - } - } - have_rmin: - if (box->rmax > box->rmin) - for (ir = box->rmax; ir >= box->rmin; --ir) - for (ig = box->gmin; ig <= box->gmax; ++ig) { - histp = &histogram[ir][ig][box->bmin]; - ib = box->bmin; - for (; ib <= box->bmax; ++ib) - if (*histp++ != 0) { - box->rmax = ir; - goto have_rmax; - } - } - } -have_rmax: - if (box->gmax > box->gmin) { - for (ig = box->gmin; ig <= box->gmax; ++ig) - for (ir = box->rmin; ir <= box->rmax; ++ir) { - histp = &histogram[ir][ig][box->bmin]; - for (ib = box->bmin; ib <= box->bmax; ++ib) - if (*histp++ != 0) { - box->gmin = ig; - goto have_gmin; - } - } - have_gmin: - if (box->gmax > box->gmin) - for (ig = box->gmax; ig >= box->gmin; --ig) - for (ir = box->rmin; ir <= box->rmax; ++ir) { - histp = &histogram[ir][ig][box->bmin]; - ib = box->bmin; - for (; ib <= box->bmax; ++ib) - if (*histp++ != 0) { - box->gmax = ig; - goto have_gmax; - } - } - } -have_gmax: - if (box->bmax > box->bmin) { - for (ib = box->bmin; ib <= box->bmax; ++ib) - for (ir = box->rmin; ir <= box->rmax; ++ir) { - histp = &histogram[ir][box->gmin][ib]; - for (ig = box->gmin; ig <= box->gmax; ++ig) { - if (*histp != 0) { - box->bmin = ib; - goto have_bmin; - } - histp += B_LEN; - } - } - have_bmin: - if (box->bmax > box->bmin) - for (ib = box->bmax; ib >= box->bmin; --ib) - for (ir = box->rmin; ir <= box->rmax; ++ir) { - histp = &histogram[ir][box->gmin][ib]; - ig = box->gmin; - for (; ig <= box->gmax; ++ig) { - if (*histp != 0) { - box->bmax = ib; - goto have_bmax; - } - histp += B_LEN; - } - } - } -have_bmax: - ; -} - -static C_cell * -create_colorcell(int red, int green, int blue) -{ - register int ir, ig, ib, i; - register C_cell *ptr; - int mindist, next_n; - register int tmp, dist, n; - - ir = red >> (COLOR_DEPTH-C_DEPTH); - ig = green >> (COLOR_DEPTH-C_DEPTH); - ib = blue >> (COLOR_DEPTH-C_DEPTH); - ptr = (C_cell *)_TIFFmalloc(sizeof (C_cell)); - *(ColorCells + ir*C_LEN*C_LEN + ig*C_LEN + ib) = ptr; - ptr->num_ents = 0; - - /* - * Step 1: find all colors inside this cell, while we're at - * it, find distance of centermost point to furthest corner - */ - mindist = 99999999; - for (i = 0; i < num_colors; ++i) { - if (rm[i]>>(COLOR_DEPTH-C_DEPTH) != ir || - gm[i]>>(COLOR_DEPTH-C_DEPTH) != ig || - bm[i]>>(COLOR_DEPTH-C_DEPTH) != ib) - continue; - ptr->entries[ptr->num_ents][0] = i; - ptr->entries[ptr->num_ents][1] = 0; - ++ptr->num_ents; - tmp = rm[i] - red; - if (tmp < (MAX_COLOR/C_LEN/2)) - tmp = MAX_COLOR/C_LEN-1 - tmp; - dist = tmp*tmp; - tmp = gm[i] - green; - if (tmp < (MAX_COLOR/C_LEN/2)) - tmp = MAX_COLOR/C_LEN-1 - tmp; - dist += tmp*tmp; - tmp = bm[i] - blue; - if (tmp < (MAX_COLOR/C_LEN/2)) - tmp = MAX_COLOR/C_LEN-1 - tmp; - dist += tmp*tmp; - if (dist < mindist) - mindist = dist; - } - - /* - * Step 3: find all points within that distance to cell. - */ - for (i = 0; i < num_colors; ++i) { - if (rm[i] >> (COLOR_DEPTH-C_DEPTH) == ir && - gm[i] >> (COLOR_DEPTH-C_DEPTH) == ig && - bm[i] >> (COLOR_DEPTH-C_DEPTH) == ib) - continue; - dist = 0; - if ((tmp = red - rm[i]) > 0 || - (tmp = rm[i] - (red + MAX_COLOR/C_LEN-1)) > 0 ) - dist += tmp*tmp; - if ((tmp = green - gm[i]) > 0 || - (tmp = gm[i] - (green + MAX_COLOR/C_LEN-1)) > 0 ) - dist += tmp*tmp; - if ((tmp = blue - bm[i]) > 0 || - (tmp = bm[i] - (blue + MAX_COLOR/C_LEN-1)) > 0 ) - dist += tmp*tmp; - if (dist < mindist) { - ptr->entries[ptr->num_ents][0] = i; - ptr->entries[ptr->num_ents][1] = dist; - ++ptr->num_ents; - } - } - - /* - * Sort color cells by distance, use cheap exchange sort - */ - for (n = ptr->num_ents - 1; n > 0; n = next_n) { - next_n = 0; - for (i = 0; i < n; ++i) - if (ptr->entries[i][1] > ptr->entries[i+1][1]) { - tmp = ptr->entries[i][0]; - ptr->entries[i][0] = ptr->entries[i+1][0]; - ptr->entries[i+1][0] = tmp; - tmp = ptr->entries[i][1]; - ptr->entries[i][1] = ptr->entries[i+1][1]; - ptr->entries[i+1][1] = tmp; - next_n = i; - } - } - return (ptr); -} - -static void -map_colortable(void) -{ - register uint32 *histp = &histogram[0][0][0]; - register C_cell *cell; - register int j, tmp, d2, dist; - int ir, ig, ib, i; - - for (ir = 0; ir < B_LEN; ++ir) - for (ig = 0; ig < B_LEN; ++ig) - for (ib = 0; ib < B_LEN; ++ib, histp++) { - if (*histp == 0) { - *histp = -1; - continue; - } - cell = *(ColorCells + - (((ir>>(B_DEPTH-C_DEPTH)) << C_DEPTH*2) + - ((ig>>(B_DEPTH-C_DEPTH)) << C_DEPTH) + - (ib>>(B_DEPTH-C_DEPTH)))); - if (cell == NULL ) - cell = create_colorcell( - ir << COLOR_SHIFT, - ig << COLOR_SHIFT, - ib << COLOR_SHIFT); - dist = 9999999; - for (i = 0; i < cell->num_ents && - dist > cell->entries[i][1]; ++i) { - j = cell->entries[i][0]; - d2 = rm[j] - (ir << COLOR_SHIFT); - d2 *= d2; - tmp = gm[j] - (ig << COLOR_SHIFT); - d2 += tmp*tmp; - tmp = bm[j] - (ib << COLOR_SHIFT); - d2 += tmp*tmp; - if (d2 < dist) { - dist = d2; - *histp = j; - } - } - } -} - -/* - * straight quantization. Each pixel is mapped to the colors - * closest to it. Color values are rounded to the nearest color - * table entry. - */ -static void -quant(TIFF* in, TIFF* out) -{ - unsigned char *outline, *inputline; - register unsigned char *outptr, *inptr; - register uint32 i, j; - register int red, green, blue; - - inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - outline = (unsigned char *)_TIFFmalloc(imagewidth); - for (i = 0; i < imagelength; i++) { - if (TIFFReadScanline(in, inputline, i, 0) <= 0) - break; - inptr = inputline; - outptr = outline; - for (j = 0; j < imagewidth; j++) { - red = *inptr++ >> COLOR_SHIFT; - green = *inptr++ >> COLOR_SHIFT; - blue = *inptr++ >> COLOR_SHIFT; - *outptr++ = (unsigned char)histogram[red][green][blue]; - } - if (TIFFWriteScanline(out, outline, i, 0) < 0) - break; - } - _TIFFfree(inputline); - _TIFFfree(outline); -} - -#define SWAP(type,a,b) { type p; p = a; a = b; b = p; } - -#define GetInputLine(tif, row, bad) \ - if (TIFFReadScanline(tif, inputline, row, 0) <= 0) \ - bad; \ - inptr = inputline; \ - nextptr = nextline; \ - for (j = 0; j < imagewidth; ++j) { \ - *nextptr++ = *inptr++; \ - *nextptr++ = *inptr++; \ - *nextptr++ = *inptr++; \ - } -#define GetComponent(raw, cshift, c) \ - cshift = raw; \ - if (cshift < 0) \ - cshift = 0; \ - else if (cshift >= MAX_COLOR) \ - cshift = MAX_COLOR-1; \ - c = cshift; \ - cshift >>= COLOR_SHIFT; - -static void -quant_fsdither(TIFF* in, TIFF* out) -{ - unsigned char *outline, *inputline, *inptr; - short *thisline, *nextline; - register unsigned char *outptr; - register short *thisptr, *nextptr; - register uint32 i, j; - uint32 imax, jmax; - int lastline, lastpixel; - - imax = imagelength - 1; - jmax = imagewidth - 1; - inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); - thisline = (short *)_TIFFmalloc(imagewidth * 3 * sizeof (short)); - nextline = (short *)_TIFFmalloc(imagewidth * 3 * sizeof (short)); - outline = (unsigned char *) _TIFFmalloc(TIFFScanlineSize(out)); - - GetInputLine(in, 0, goto bad); /* get first line */ - for (i = 1; i <= imagelength; ++i) { - SWAP(short *, thisline, nextline); - lastline = (i >= imax); - if (i <= imax) - GetInputLine(in, i, break); - thisptr = thisline; - nextptr = nextline; - outptr = outline; - for (j = 0; j < imagewidth; ++j) { - int red, green, blue; - register int oval, r2, g2, b2; - - lastpixel = (j == jmax); - GetComponent(*thisptr++, r2, red); - GetComponent(*thisptr++, g2, green); - GetComponent(*thisptr++, b2, blue); - oval = histogram[r2][g2][b2]; - if (oval == -1) { - int ci; - register int cj, tmp, d2, dist; - register C_cell *cell; - - cell = *(ColorCells + - (((r2>>(B_DEPTH-C_DEPTH)) << C_DEPTH*2) + - ((g2>>(B_DEPTH-C_DEPTH)) << C_DEPTH ) + - (b2>>(B_DEPTH-C_DEPTH)))); - if (cell == NULL) - cell = create_colorcell(red, - green, blue); - dist = 9999999; - for (ci = 0; ci < cell->num_ents && dist > cell->entries[ci][1]; ++ci) { - cj = cell->entries[ci][0]; - d2 = (rm[cj] >> COLOR_SHIFT) - r2; - d2 *= d2; - tmp = (gm[cj] >> COLOR_SHIFT) - g2; - d2 += tmp*tmp; - tmp = (bm[cj] >> COLOR_SHIFT) - b2; - d2 += tmp*tmp; - if (d2 < dist) { - dist = d2; - oval = cj; - } - } - histogram[r2][g2][b2] = oval; - } - *outptr++ = oval; - red -= rm[oval]; - green -= gm[oval]; - blue -= bm[oval]; - if (!lastpixel) { - thisptr[0] += blue * 7 / 16; - thisptr[1] += green * 7 / 16; - thisptr[2] += red * 7 / 16; - } - if (!lastline) { - if (j != 0) { - nextptr[-3] += blue * 3 / 16; - nextptr[-2] += green * 3 / 16; - nextptr[-1] += red * 3 / 16; - } - nextptr[0] += blue * 5 / 16; - nextptr[1] += green * 5 / 16; - nextptr[2] += red * 5 / 16; - if (!lastpixel) { - nextptr[3] += blue / 16; - nextptr[4] += green / 16; - nextptr[5] += red / 16; - } - nextptr += 3; - } - } - if (TIFFWriteScanline(out, outline, i-1, 0) < 0) - break; - } -bad: - _TIFFfree(inputline); - _TIFFfree(thisline); - _TIFFfree(nextline); - _TIFFfree(outline); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffset.c b/tiff/tools/tiffset.c deleted file mode 100755 index 7044d2b..0000000 --- a/tiff/tools/tiffset.c +++ /dev/null @@ -1,356 +0,0 @@ -/****************************************************************************** - * $Id: tiffset.c,v 1.18 2012-12-04 03:02:37 bfriesen Exp $ - * - * Project: libtiff tools - * Purpose: Mainline for setting metadata in existing TIFF files. - * Author: Frank Warmerdam, warmerdam@pobox.com - * - ****************************************************************************** - * Copyright (c) 2000, Frank Warmerdam - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - ****************************************************************************** - */ - - -#include -#include -#include - -#include "tiffio.h" - -static char* usageMsg[] = { -"usage: tiffset [options] filename", -"where options are:", -" -s [count] ... set the tag value", -" -u to unset the tag", -" -d set the directory", -" -sd set the subdirectory", -" -sf read the tag value from file (for ASCII tags only)", -NULL -}; - -static void -usage(void) -{ - int i; - for (i = 0; usageMsg[i]; i++) - fprintf(stderr, "%s\n", usageMsg[i]); - exit(-1); -} - -static const TIFFField * -GetField(TIFF *tiff, const char *tagname) -{ - const TIFFField *fip; - - if( atoi(tagname) > 0 ) - fip = TIFFFieldWithTag(tiff, (ttag_t)atoi(tagname)); - else - fip = TIFFFieldWithName(tiff, tagname); - - if (!fip) { - fprintf( stderr, "Field name \"%s\" is not recognised.\n", tagname ); - return (TIFFField *)NULL; - } - - return fip; -} - -int -main(int argc, char* argv[]) -{ - TIFF *tiff; - int arg_index; - - if (argc < 2) - usage(); - - tiff = TIFFOpen(argv[argc-1], "r+"); - if (tiff == NULL) - return 2; - - for( arg_index = 1; arg_index < argc-1; arg_index++ ) { - if (strcmp(argv[arg_index],"-d") == 0 && arg_index < argc-2) { - arg_index++; - if( TIFFSetDirectory(tiff, atoi(argv[arg_index]) ) != 1 ) - { - fprintf( stderr, "Failed to set directory=%s\n", argv[arg_index] ); - return 6; - } - arg_index++; - } - if (strcmp(argv[arg_index],"-sd") == 0 && arg_index < argc-2) { - arg_index++; - if( TIFFSetSubDirectory(tiff, atoi(argv[arg_index]) ) != 1 ) - { - fprintf( stderr, "Failed to set sub directory=%s\n", argv[arg_index] ); - return 7; - } - arg_index++; - } - /* Add unset option to tiffset -- Zach Baker (niquil@niquil.net) 11/14/2012 */ - if (strcmp(argv[arg_index],"-u") == 0 && arg_index < argc-2) { - const TIFFField *fip; - const char *tagname; - arg_index++; - tagname = argv[arg_index]; - fip = GetField(tiff, tagname); - if (!fip) - return 3; - - if (TIFFUnsetField(tiff, TIFFFieldTag(fip)) != 1) - { - fprintf(stderr, "Failed to unset %s\n", TIFFFieldName(fip)); - } - arg_index++; - } else if (strcmp(argv[arg_index],"-s") == 0 && arg_index < argc-3) { - const TIFFField *fip; - const char *tagname; - - arg_index++; - tagname = argv[arg_index]; - fip = GetField(tiff, tagname); - - if (!fip) - return 3; - - arg_index++; - if (TIFFFieldDataType(fip) == TIFF_ASCII) { - if (TIFFSetField(tiff, TIFFFieldTag(fip), argv[arg_index]) != 1) - fprintf( stderr, "Failed to set %s=%s\n", - TIFFFieldName(fip), argv[arg_index] ); - } else if (TIFFFieldWriteCount(fip) > 0 - || TIFFFieldWriteCount(fip) == TIFF_VARIABLE) { - int ret = 1; - short wc; - - if (TIFFFieldWriteCount(fip) == TIFF_VARIABLE) - wc = atoi(argv[arg_index++]); - else - wc = TIFFFieldWriteCount(fip); - - if (argc - arg_index < wc) { - fprintf( stderr, - "Number of tag values is not enough. " - "Expected %d values for %s tag, got %d\n", - wc, TIFFFieldName(fip), argc - arg_index); - return 4; - } - - if (wc > 1) { - int i, size; - void *array; - - switch (TIFFFieldDataType(fip)) { - /* - * XXX: We can't use TIFFDataWidth() - * to determine the space needed to store - * the value. For TIFF_RATIONAL values - * TIFFDataWidth() returns 8, but we use 4-byte - * float to represent rationals. - */ - case TIFF_BYTE: - case TIFF_ASCII: - case TIFF_SBYTE: - case TIFF_UNDEFINED: - default: - size = 1; - break; - - case TIFF_SHORT: - case TIFF_SSHORT: - size = 2; - break; - - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_FLOAT: - case TIFF_IFD: - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - size = 4; - break; - - case TIFF_DOUBLE: - size = 8; - break; - } - - array = _TIFFmalloc(wc * size); - if (!array) { - fprintf(stderr, "No space for %s tag\n", - tagname); - return 4; - } - - switch (TIFFFieldDataType(fip)) { - case TIFF_BYTE: - for (i = 0; i < wc; i++) - ((uint8 *)array)[i] = atoi(argv[arg_index+i]); - break; - case TIFF_SHORT: - for (i = 0; i < wc; i++) - ((uint16 *)array)[i] = atoi(argv[arg_index+i]); - break; - case TIFF_SBYTE: - for (i = 0; i < wc; i++) - ((int8 *)array)[i] = atoi(argv[arg_index+i]); - break; - case TIFF_SSHORT: - for (i = 0; i < wc; i++) - ((int16 *)array)[i] = atoi(argv[arg_index+i]); - break; - case TIFF_LONG: - for (i = 0; i < wc; i++) - ((uint32 *)array)[i] = atol(argv[arg_index+i]); - break; - case TIFF_SLONG: - case TIFF_IFD: - for (i = 0; i < wc; i++) - ((uint32 *)array)[i] = atol(argv[arg_index+i]); - break; - case TIFF_DOUBLE: - for (i = 0; i < wc; i++) - ((double *)array)[i] = atof(argv[arg_index+i]); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - for (i = 0; i < wc; i++) - ((float *)array)[i] = (float)atof(argv[arg_index+i]); - break; - default: - break; - } - - if (TIFFFieldPassCount(fip)) { - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - wc, array); - } else if (TIFFFieldTag(fip) == TIFFTAG_PAGENUMBER - || TIFFFieldTag(fip) == TIFFTAG_HALFTONEHINTS - || TIFFFieldTag(fip) == TIFFTAG_YCBCRSUBSAMPLING - || TIFFFieldTag(fip) == TIFFTAG_DOTRANGE) { - if (TIFFFieldDataType(fip) == TIFF_BYTE) { - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - ((uint8 *)array)[0], ((uint8 *)array)[1]); - } else if (TIFFFieldDataType(fip) == TIFF_SHORT) { - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - ((uint16 *)array)[0], ((uint16 *)array)[1]); - } - } else { - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - array); - } - - _TIFFfree(array); - } else { - switch (TIFFFieldDataType(fip)) { - case TIFF_BYTE: - case TIFF_SHORT: - case TIFF_SBYTE: - case TIFF_SSHORT: - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - atoi(argv[arg_index++])); - break; - case TIFF_LONG: - case TIFF_SLONG: - case TIFF_IFD: - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - atol(argv[arg_index++])); - break; - case TIFF_DOUBLE: - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - atof(argv[arg_index++])); - break; - case TIFF_RATIONAL: - case TIFF_SRATIONAL: - case TIFF_FLOAT: - ret = TIFFSetField(tiff, TIFFFieldTag(fip), - (float)atof(argv[arg_index++])); - break; - default: - break; - } - } - - if (ret != 1) - fprintf(stderr, "Failed to set %s\n", TIFFFieldName(fip)); - arg_index += wc; - } - } else if (strcmp(argv[arg_index],"-sf") == 0 && arg_index < argc-3) { - FILE *fp; - const TIFFField *fip; - char *text; - size_t len; - - arg_index++; - fip = GetField(tiff, argv[arg_index]); - - if (!fip) - return 3; - - if (TIFFFieldDataType(fip) != TIFF_ASCII) { - fprintf( stderr, - "Only ASCII tags can be set from file. " - "%s is not ASCII tag.\n", TIFFFieldName(fip) ); - return 5; - } - - arg_index++; - fp = fopen( argv[arg_index], "rt" ); - if(fp == NULL) { - perror( argv[arg_index] ); - continue; - } - - text = (char *) malloc(1000000); - len = fread( text, 1, 999999, fp ); - text[len] = '\0'; - - fclose( fp ); - - if(TIFFSetField( tiff, TIFFFieldTag(fip), text ) != 1) { - fprintf(stderr, "Failed to set %s from file %s\n", - TIFFFieldName(fip), argv[arg_index]); - } - - _TIFFfree( text ); - arg_index++; - } else { - fprintf(stderr, "Unrecognised option: %s\n", - argv[arg_index]); - usage(); - } - } - - TIFFRewriteDirectory(tiff); - TIFFClose(tiff); - return 0; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/tiffsplit.c b/tiff/tools/tiffsplit.c deleted file mode 100755 index fa43d63..0000000 --- a/tiff/tools/tiffsplit.c +++ /dev/null @@ -1,303 +0,0 @@ -/* $Id: tiffsplit.c,v 1.22 2011-10-22 17:03:01 bfriesen Exp $ */ - -/* - * Copyright (c) 1992-1997 Sam Leffler - * Copyright (c) 1992-1997 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -#include "tif_config.h" - -#include -#include -#include - -#include "tiffio.h" - -#ifndef HAVE_GETOPT -extern int getopt(int, char**, char*); -#endif - -#define CopyField(tag, v) \ - if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v) -#define CopyField2(tag, v1, v2) \ - if (TIFFGetField(in, tag, &v1, &v2)) TIFFSetField(out, tag, v1, v2) -#define CopyField3(tag, v1, v2, v3) \ - if (TIFFGetField(in, tag, &v1, &v2, &v3)) TIFFSetField(out, tag, v1, v2, v3) - -#define PATH_LENGTH 8192 - -static const char TIFF_SUFFIX[] = ".tif"; - -static char fname[PATH_LENGTH]; - -static int tiffcp(TIFF*, TIFF*); -static void newfilename(void); -static int cpStrips(TIFF*, TIFF*); -static int cpTiles(TIFF*, TIFF*); - -int -main(int argc, char* argv[]) -{ - TIFF *in, *out; - - if (argc < 2) { - fprintf(stderr, "%s\n\n", TIFFGetVersion()); - fprintf(stderr, "usage: tiffsplit input.tif [prefix]\n"); - return (-3); - } - if (argc > 2) { - strncpy(fname, argv[2], sizeof(fname)); - fname[sizeof(fname) - 1] = '\0'; - } - in = TIFFOpen(argv[1], "r"); - if (in != NULL) { - do { - size_t path_len; - char *path; - - newfilename(); - - path_len = strlen(fname) + sizeof(TIFF_SUFFIX); - path = (char *) _TIFFmalloc(path_len); - strncpy(path, fname, path_len); - path[path_len - 1] = '\0'; - strncat(path, TIFF_SUFFIX, path_len - strlen(path) - 1); - out = TIFFOpen(path, TIFFIsBigEndian(in)?"wb":"wl"); - _TIFFfree(path); - - if (out == NULL) - return (-2); - if (!tiffcp(in, out)) - return (-1); - TIFFClose(out); - } while (TIFFReadDirectory(in)); - (void) TIFFClose(in); - } - return (0); -} - -static void -newfilename(void) -{ - static int first = 1; - static long lastTurn; - static long fnum; - static short defname; - static char *fpnt; - - if (first) { - if (fname[0]) { - fpnt = fname + strlen(fname); - defname = 0; - } else { - fname[0] = 'x'; - fpnt = fname + 1; - defname = 1; - } - first = 0; - } -#define MAXFILES 17576 - if (fnum == MAXFILES) { - if (!defname || fname[0] == 'z') { - fprintf(stderr, "tiffsplit: too many files.\n"); - exit(1); - } - fname[0]++; - fnum = 0; - } - if (fnum % 676 == 0) { - if (fnum != 0) { - /* - * advance to next letter every 676 pages - * condition for 'z'++ will be covered above - */ - fpnt[0]++; - } else { - /* - * set to 'a' if we are on the very first file - */ - fpnt[0] = 'a'; - } - /* - * set the value of the last turning point - */ - lastTurn = fnum; - } - /* - * start from 0 every 676 times (provided by lastTurn) - * this keeps us within a-z boundaries - */ - fpnt[1] = (char)((fnum - lastTurn) / 26) + 'a'; - /* - * cycle last letter every file, from a-z, then repeat - */ - fpnt[2] = (char)(fnum % 26) + 'a'; - fnum++; -} - -static int -tiffcp(TIFF* in, TIFF* out) -{ - uint16 bitspersample, samplesperpixel, compression, shortv, *shortav; - uint32 w, l; - float floatv; - char *stringv; - uint32 longv; - - CopyField(TIFFTAG_SUBFILETYPE, longv); - CopyField(TIFFTAG_TILEWIDTH, w); - CopyField(TIFFTAG_TILELENGTH, l); - CopyField(TIFFTAG_IMAGEWIDTH, w); - CopyField(TIFFTAG_IMAGELENGTH, l); - CopyField(TIFFTAG_BITSPERSAMPLE, bitspersample); - CopyField(TIFFTAG_SAMPLESPERPIXEL, samplesperpixel); - CopyField(TIFFTAG_COMPRESSION, compression); - if (compression == COMPRESSION_JPEG) { - uint32 count = 0; - void *table = NULL; - if (TIFFGetField(in, TIFFTAG_JPEGTABLES, &count, &table) - && count > 0 && table) { - TIFFSetField(out, TIFFTAG_JPEGTABLES, count, table); - } - } - CopyField(TIFFTAG_PHOTOMETRIC, shortv); - CopyField(TIFFTAG_PREDICTOR, shortv); - CopyField(TIFFTAG_THRESHHOLDING, shortv); - CopyField(TIFFTAG_FILLORDER, shortv); - CopyField(TIFFTAG_ORIENTATION, shortv); - CopyField(TIFFTAG_MINSAMPLEVALUE, shortv); - CopyField(TIFFTAG_MAXSAMPLEVALUE, shortv); - CopyField(TIFFTAG_XRESOLUTION, floatv); - CopyField(TIFFTAG_YRESOLUTION, floatv); - CopyField(TIFFTAG_GROUP3OPTIONS, longv); - CopyField(TIFFTAG_GROUP4OPTIONS, longv); - CopyField(TIFFTAG_RESOLUTIONUNIT, shortv); - CopyField(TIFFTAG_PLANARCONFIG, shortv); - CopyField(TIFFTAG_ROWSPERSTRIP, longv); - CopyField(TIFFTAG_XPOSITION, floatv); - CopyField(TIFFTAG_YPOSITION, floatv); - CopyField(TIFFTAG_IMAGEDEPTH, longv); - CopyField(TIFFTAG_TILEDEPTH, longv); - CopyField(TIFFTAG_SAMPLEFORMAT, shortv); - CopyField2(TIFFTAG_EXTRASAMPLES, shortv, shortav); - { uint16 *red, *green, *blue; - CopyField3(TIFFTAG_COLORMAP, red, green, blue); - } - { uint16 shortv2; - CopyField2(TIFFTAG_PAGENUMBER, shortv, shortv2); - } - CopyField(TIFFTAG_ARTIST, stringv); - CopyField(TIFFTAG_IMAGEDESCRIPTION, stringv); - CopyField(TIFFTAG_MAKE, stringv); - CopyField(TIFFTAG_MODEL, stringv); - CopyField(TIFFTAG_SOFTWARE, stringv); - CopyField(TIFFTAG_DATETIME, stringv); - CopyField(TIFFTAG_HOSTCOMPUTER, stringv); - CopyField(TIFFTAG_PAGENAME, stringv); - CopyField(TIFFTAG_DOCUMENTNAME, stringv); - CopyField(TIFFTAG_BADFAXLINES, longv); - CopyField(TIFFTAG_CLEANFAXDATA, longv); - CopyField(TIFFTAG_CONSECUTIVEBADFAXLINES, longv); - CopyField(TIFFTAG_FAXRECVPARAMS, longv); - CopyField(TIFFTAG_FAXRECVTIME, longv); - CopyField(TIFFTAG_FAXSUBADDRESS, stringv); - CopyField(TIFFTAG_FAXDCS, stringv); - if (TIFFIsTiled(in)) - return (cpTiles(in, out)); - else - return (cpStrips(in, out)); -} - -static int -cpStrips(TIFF* in, TIFF* out) -{ - tmsize_t bufsize = TIFFStripSize(in); - unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize); - - if (buf) { - tstrip_t s, ns = TIFFNumberOfStrips(in); - uint64 *bytecounts; - - if (!TIFFGetField(in, TIFFTAG_STRIPBYTECOUNTS, &bytecounts)) { - fprintf(stderr, "tiffsplit: strip byte counts are missing\n"); - return (0); - } - for (s = 0; s < ns; s++) { - if (bytecounts[s] > (uint64)bufsize) { - buf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[s]); - if (!buf) - return (0); - bufsize = (tmsize_t)bytecounts[s]; - } - if (TIFFReadRawStrip(in, s, buf, (tmsize_t)bytecounts[s]) < 0 || - TIFFWriteRawStrip(out, s, buf, (tmsize_t)bytecounts[s]) < 0) { - _TIFFfree(buf); - return (0); - } - } - _TIFFfree(buf); - return (1); - } - return (0); -} - -static int -cpTiles(TIFF* in, TIFF* out) -{ - tmsize_t bufsize = TIFFTileSize(in); - unsigned char *buf = (unsigned char *)_TIFFmalloc(bufsize); - - if (buf) { - ttile_t t, nt = TIFFNumberOfTiles(in); - uint64 *bytecounts; - - if (!TIFFGetField(in, TIFFTAG_TILEBYTECOUNTS, &bytecounts)) { - fprintf(stderr, "tiffsplit: tile byte counts are missing\n"); - return (0); - } - for (t = 0; t < nt; t++) { - if (bytecounts[t] > (uint64) bufsize) { - buf = (unsigned char *)_TIFFrealloc(buf, (tmsize_t)bytecounts[t]); - if (!buf) - return (0); - bufsize = (tmsize_t)bytecounts[t]; - } - if (TIFFReadRawTile(in, t, buf, (tmsize_t)bytecounts[t]) < 0 || - TIFFWriteRawTile(out, t, buf, (tmsize_t)bytecounts[t]) < 0) { - _TIFFfree(buf); - return (0); - } - } - _TIFFfree(buf); - return (1); - } - return (0); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/tiff/tools/ycbcr.c b/tiff/tools/ycbcr.c deleted file mode 100755 index 8f72447..0000000 --- a/tiff/tools/ycbcr.c +++ /dev/null @@ -1,168 +0,0 @@ -float ycbcrCoeffs[3] = { .299, .587, .114 }; -/* default coding range is CCIR Rec 601-1 with no headroom/footroom */ -unsigned long refBlackWhite[6] = { 0, 255, 128, 255, 128, 255 }; - -#define LumaRed ycbcrCoeffs[0] -#define LumaGreen ycbcrCoeffs[1] -#define LumaBlue ycbcrCoeffs[2] - -long eRtotal = 0; -long eGtotal = 0; -long eBtotal = 0; -long preveRtotal = 0; -long preveGtotal = 0; -long preveBtotal = 0; -unsigned long AbseRtotal = 0; -unsigned long AbseGtotal = 0; -unsigned long AbseBtotal = 0; -unsigned long eCodes = 0; -unsigned long preveCodes = 0; -unsigned long eBits = 0; -unsigned long preveBits = 0; - -static void setupLumaTables(); -static int abs(int v) { return (v < 0 ? -v : v); } -static double pct(int v,double range) { return (v*100. / range); } -static void check(int R, int G, int B); - -float D1, D2; -float D3, D4; -float D5, D6; - -int -main(int argc, char** argv) -{ - int R, G, B; - - if (argc > 1) { - refBlackWhite[0] = 16; - refBlackWhite[1] = 235; - refBlackWhite[2] = 128; - refBlackWhite[3] = 240; - refBlackWhite[4] = 128; - refBlackWhite[5] = 240; - } - D3 = 2 - 2*LumaRed; - D4 = 2 - 2*LumaBlue; - D1 = 1. / D3; - D2 = 1. / D4; - D5 = D3*LumaRed / LumaGreen; - D6 = D4*LumaBlue / LumaGreen; - setupLumaTables(); - for (R = 0; R < 256; R++) { - for (G = 0; G < 256; G++) - for (B = 0; B < 256; B++) - check(R, G, B); - printf("[%3u] c %u/%u b %u/%u (R %u/%d/%u G %u/%d/%u B %u/%d/%u)\n" - , R - , eCodes - preveCodes, eCodes - , eBits - preveBits, eBits - , abs(AbseRtotal - preveRtotal), eRtotal , AbseRtotal - , abs(AbseGtotal - preveGtotal), eGtotal , AbseGtotal - , abs(AbseBtotal - preveBtotal), eBtotal , AbseBtotal - ); - preveRtotal = AbseRtotal; - preveGtotal = AbseGtotal; - preveBtotal = AbseBtotal; - preveCodes = eCodes; - preveBits = eBits; - } - printf("%u total codes\n", 256*256*256); - printf("total error: %u codes %u bits (R %d/%u G %d/%u B %d/%u)\n" - , eCodes - , eBits - , eRtotal , AbseRtotal - , eGtotal , AbseGtotal - , eBtotal , AbseBtotal - ); - return (0); -} - -float *lumaRed; -float *lumaGreen; -float *lumaBlue; - -static float* -setupLuma(float c) -{ - float *v = (float *)_TIFFmalloc(256 * sizeof (float)); - int i; - for (i = 0; i < 256; i++) - v[i] = c * i; - return (v); -} - -static void -setupLumaTables(void) -{ - lumaRed = setupLuma(LumaRed); - lumaGreen = setupLuma(LumaGreen); - lumaBlue = setupLuma(LumaBlue); -} - -static unsigned -V2Code(float f, unsigned long RB, unsigned long RW, int CR) -{ - unsigned int c = (unsigned int)((((f)*(RW-RB)/CR)+RB)+.5); - return (c > 255 ? 255 : c); -} - -#define Code2V(c, RB, RW, CR) ((((c)-(int)RB)*(float)CR)/(float)(RW-RB)) - -#define CLAMP(f,min,max) \ - (int)((f)+.5 < (min) ? (min) : (f)+.5 > (max) ? (max) : (f)+.5) - -static -void -check(int R, int G, int B) -{ - float Y, Cb, Cr; - int iY, iCb, iCr; - float rY, rCb, rCr; - float rR, rG, rB; - int eR, eG, eB; - - Y = lumaRed[R] + lumaGreen[G] + lumaBlue[B]; - Cb = (B - Y)*D2; - Cr = (R - Y)*D1; - iY = V2Code(Y, refBlackWhite[0], refBlackWhite[1], 255); - iCb = V2Code(Cb, refBlackWhite[2], refBlackWhite[3], 127); - iCr = V2Code(Cr, refBlackWhite[4], refBlackWhite[5], 127); - rCb = Code2V(iCb, refBlackWhite[2], refBlackWhite[3], 127); - rCr = Code2V(iCr, refBlackWhite[4], refBlackWhite[5], 127); - rY = Code2V(iY, refBlackWhite[0], refBlackWhite[1], 255); - rR = rY + rCr*D3; - rB = rY + rCb*D4; - rG = rY - rCb*D6 - rCr*D5; - eR = R - CLAMP(rR,0,255); - eG = G - CLAMP(rG,0,255); - eB = B - CLAMP(rB,0,255); - if (abs(eR) > 1 || abs(eG) > 1 || abs(eB) > 1) { - printf("R %u G %u B %u", R, G, B); - printf(" Y %g Cb %g Cr %g", Y, Cb, Cr); - printf(" iY %u iCb %u iCr %u", iY, iCb, iCr); - printf("\n -> Y %g Cb %g Cr %g", rY, rCb, rCr); - printf(" R %g (%u) G %g (%u) B %g (%u) E=[%d %d %d])\n" - , rR, CLAMP(rR,0,255) - , rG, CLAMP(rG,0,255) - , rB, CLAMP(rB,0,255) - , eR, eG, eB - ); - } - eRtotal += eR; - eGtotal += eG; - eBtotal += eB; - AbseRtotal += abs(eR); - AbseGtotal += abs(eG); - AbseBtotal += abs(eB); - if (eR | eG | eB) - eCodes++; - eBits += abs(eR) + abs(eG) + abs(eB); -} -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ diff --git a/ttbd.txt b/ttbd.txt old mode 100755 new mode 100644 diff --git a/tweak/Jamfile b/tweak/Jamfile old mode 100755 new mode 100644 diff --git a/tweak/License.txt b/tweak/License.txt old mode 100755 new mode 100644 diff --git a/tweak/Readme.txt b/tweak/Readme.txt old mode 100755 new mode 100644 diff --git a/tweak/afiles b/tweak/afiles old mode 100755 new mode 100644 diff --git a/tweak/refine.c b/tweak/refine.c old mode 100755 new mode 100644 diff --git a/ucmm/Jamfile b/ucmm/Jamfile old mode 100755 new mode 100644 diff --git a/ucmm/afiles b/ucmm/afiles old mode 100755 new mode 100644 diff --git a/ucmm/ucmm.c b/ucmm/ucmm.c old mode 100755 new mode 100644 diff --git a/ucmm/ucmm.h b/ucmm/ucmm.h old mode 100755 new mode 100644 diff --git a/usb/45-Argyll.rules b/usb/45-Argyll.rules old mode 100755 new mode 100644 diff --git a/usb/55-Argyll.rules b/usb/55-Argyll.rules old mode 100755 new mode 100644 diff --git a/usb/Argyll b/usb/Argyll old mode 100755 new mode 100644 diff --git a/usb/Argyll.kext/Info.plist b/usb/Argyll.kext/Info.plist old mode 100755 new mode 100644 diff --git a/usb/Argyll.usermap b/usb/Argyll.usermap old mode 100755 new mode 100644 diff --git a/usb/ArgyllCMS.cat b/usb/ArgyllCMS.cat old mode 100755 new mode 100644 diff --git a/usb/ArgyllCMS.inf b/usb/ArgyllCMS.inf old mode 100755 new mode 100644 diff --git a/usb/ArgyllCMS.inf.d b/usb/ArgyllCMS.inf.d old mode 100755 new mode 100644 diff --git a/usb/ArgyllCMS.inf.t b/usb/ArgyllCMS.inf.t old mode 100755 new mode 100644 diff --git a/usb/ArgyllCMS_x64.cat b/usb/ArgyllCMS_x64.cat old mode 100755 new mode 100644 diff --git a/usb/Jamfile b/usb/Jamfile old mode 100755 new mode 100644 diff --git a/usb/afiles b/usb/afiles old mode 100755 new mode 100644 diff --git a/usb/bin/amd64/libusb0.sys b/usb/bin/amd64/libusb0.sys deleted file mode 100755 index 0718dfb..0000000 Binary files a/usb/bin/amd64/libusb0.sys and /dev/null differ diff --git a/usb/bin/ia64/libusb0.sys b/usb/bin/ia64/libusb0.sys deleted file mode 100755 index f17914b..0000000 Binary files a/usb/bin/ia64/libusb0.sys and /dev/null differ diff --git a/usb/bin/libusb-win32-bin-README.txt b/usb/bin/libusb-win32-bin-README.txt deleted file mode 100755 index 455eb6b..0000000 --- a/usb/bin/libusb-win32-bin-README.txt +++ /dev/null @@ -1,27 +0,0 @@ -libusb-win32-bin v1.2.6.0 (01/17/2012) - [Package Information] - -ALL ARCHITECTURES: - x86\libusb0_x86.dll: x86 32-bit library. Must be renamed to libusb0.dll - On 64 bit, Installs to Windows\syswow64\libusb0.dll. - On 32 bit, Installs to Windows\system32\libusb0.dll. - - x86\inf-wizard.exe: inf-wizard application with embedded libusb-win32 - v1.2.6.0 binaries. - -X86 ONLY ARCHITECTURES: - x86\libusb0.sys: x86 32-bit driver. - Installs to Windows\system32\drivers\libusb0.sys - -AMD64-INTEL64 ONLY ARCHITECTURES: - amd64\libusb0.sys: x64 64-bit driver. - Installs to Windows\system32\drivers\libusb0.sys - - amd64\libusb0.dll: x64 64-bit library. - Installs to Windows\system32\libusb0.dll - -IA64 ONLY ARCHITECTURES: - ia64\libusb0.sys: IA64 64-bit driver. - Installs to Windows\system32\drivers\libusb0.sys - - ia64\libusb0.dll: IA64 64-bit library. - Installs to Windows\system32\libusb0.dll diff --git a/usb/bin/x86/libusb0.sys b/usb/bin/x86/libusb0.sys deleted file mode 100755 index 5322e5b..0000000 Binary files a/usb/bin/x86/libusb0.sys and /dev/null differ diff --git a/usb/binfiles.lx b/usb/binfiles.lx old mode 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diff --git a/yajl/yajl_gen.c b/yajl/yajl_gen.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_gen.h b/yajl/yajl_gen.h old mode 100755 new mode 100644 diff --git a/yajl/yajl_lex.c b/yajl/yajl_lex.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_lex.h b/yajl/yajl_lex.h old mode 100755 new mode 100644 diff --git a/yajl/yajl_parse.h b/yajl/yajl_parse.h old mode 100755 new mode 100644 diff --git a/yajl/yajl_parser.c b/yajl/yajl_parser.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_parser.h b/yajl/yajl_parser.h old mode 100755 new mode 100644 diff --git a/yajl/yajl_test.c b/yajl/yajl_test.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_tree.c b/yajl/yajl_tree.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_tree.h b/yajl/yajl_tree.h old mode 100755 new mode 100644 diff --git a/yajl/yajl_version.c b/yajl/yajl_version.c old mode 100755 new mode 100644 diff --git a/yajl/yajl_version.h b/yajl/yajl_version.h old mode 100755 new mode 100644 diff --git a/ziparch.sh b/ziparch.sh old mode 100755 new mode 100644 diff --git a/zlib/CMakeLists.txt b/zlib/CMakeLists.txt deleted file mode 100755 index a64fe0b..0000000 --- a/zlib/CMakeLists.txt +++ /dev/null @@ -1,190 +0,0 @@ -cmake_minimum_required(VERSION 2.4.4) -set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON) - -project(zlib C) - -if(NOT DEFINED BUILD_SHARED_LIBS) - option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON) -endif() - -include(CheckTypeSize) -include(CheckFunctionExists) -include(CheckIncludeFile) -include(CheckCSourceCompiles) -enable_testing() - -check_include_file(sys/types.h HAVE_SYS_TYPES_H) -check_include_file(stdint.h HAVE_STDINT_H) -check_include_file(stddef.h HAVE_STDDEF_H) - -# -# Check to see if we have large file support -# -set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1) -# We add these other definitions here because CheckTypeSize.cmake -# in CMake 2.4.x does not automatically do so and we want -# compatibility with CMake 2.4.x. -if(HAVE_SYS_TYPES_H) - list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H) -endif() -if(HAVE_STDINT_H) - list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H) -endif() -if(HAVE_STDDEF_H) - list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H) -endif() -check_type_size(off64_t OFF64_T) -if(HAVE_OFF64_T) - add_definitions(-D_LARGEFILE64_SOURCE=1) -endif() -set(CMAKE_REQUIRED_DEFINITIONS) # clear variable - -# -# Check for fseeko -# -check_function_exists(fseeko HAVE_FSEEKO) -if(NOT HAVE_FSEEKO) - add_definitions(-DNO_FSEEKO) -endif() - -# -# Check for unistd.h -# -check_include_file(unistd.h Z_HAVE_UNISTD_H) - -if(MSVC) - set(CMAKE_DEBUG_POSTFIX "d") - add_definitions(-D_CRT_SECURE_NO_DEPRECATE) - add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) -endif() - -if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR) - # If we're doing an out of source build and the user has a zconf.h - # in their source tree... - if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h) - message(FATAL_ERROR - "You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h " - "from the source tree. This file is included with zlib " - "but CMake generates this file for you automatically " - "in the build directory.") - endif() -endif() - -configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein - ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY) -include_directories(${CMAKE_CURRENT_BINARY_DIR}) - - -#============================================================================ -# zlib -#============================================================================ - -set(ZLIB_PUBLIC_HDRS - ${CMAKE_CURRENT_BINARY_DIR}/zconf.h - zlib.h -) -set(ZLIB_PRIVATE_HDRS - crc32.h - deflate.h - gzguts.h - inffast.h - inffixed.h - inflate.h - inftrees.h - trees.h - zutil.h -) -set(ZLIB_SRCS - adler32.c - compress.c - crc32.c - deflate.c - gzclose.c - gzlib.c - gzread.c - gzwrite.c - inflate.c - infback.c - inftrees.c - inffast.c - trees.c - uncompr.c - zutil.c - win32/zlib1.rc -) - -# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION -file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents) -string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*" - "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents}) - -if(MINGW) - # This gets us DLL resource information when compiling on MinGW. - add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj - COMMAND windres.exe - -D GCC_WINDRES - -I ${CMAKE_CURRENT_SOURCE_DIR} - -I ${CMAKE_CURRENT_BINARY_DIR} - -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj - -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc) - set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj) -endif(MINGW) - -add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS}) -set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL) - -set_target_properties(zlib PROPERTIES SOVERSION 1) - -if(NOT CYGWIN) - # This property causes shared libraries on Linux to have the full version - # encoded into their final filename. We disable this on Cygwin because - # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll - # seems to be the default. - # - # This has no effect with MSVC, on that platform the version info for - # the DLL comes from the resource file win32/zlib1.rc - set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION}) -endif() - -if(UNIX) - # On unix-like platforms the library is almost always called libz - set_target_properties(zlib PROPERTIES OUTPUT_NAME z) -elseif(BUILD_SHARED_LIBS AND WIN32) - # Creates zlib1.dll when building shared library version - set_target_properties(zlib PROPERTIES SUFFIX "1.dll") -endif() - -if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) - install(TARGETS zlib - RUNTIME DESTINATION bin - ARCHIVE DESTINATION lib - LIBRARY DESTINATION lib ) -endif() -if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) - install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include) -endif() -if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) - install(FILES zlib.3 DESTINATION share/man/man3) -endif() - -#============================================================================ -# Example binaries -#============================================================================ - -add_executable(example example.c) -target_link_libraries(example zlib) -add_test(example example) - -add_executable(minigzip minigzip.c) -target_link_libraries(minigzip zlib) - -if(HAVE_OFF64_T) - add_executable(example64 example.c) - target_link_libraries(example64 zlib) - set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") - add_test(example64 example64) - - add_executable(minigzip64 minigzip.c) - target_link_libraries(minigzip64 zlib) - set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") -endif() diff --git a/zlib/ChangeLog b/zlib/ChangeLog deleted file mode 100755 index f310bb0..0000000 --- a/zlib/ChangeLog +++ /dev/null @@ -1,1208 +0,0 @@ - - ChangeLog file for zlib - -Changes in 1.2.5 (19 Apr 2010) -- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev] -- Default to libdir as sharedlibdir in configure [Nieder] -- Update copyright dates on modified source files -- Update trees.c to be able to generate modified trees.h -- Exit configure for MinGW, suggesting win32/Makefile.gcc - -Changes in 1.2.4.5 (18 Apr 2010) -- Set sharedlibdir in configure [Torok] -- Set LDFLAGS in Makefile.in [Bar-Lev] -- Avoid mkdir objs race condition in Makefile.in [Bowler] -- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays -- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C -- Don't use hidden attribute when it is a warning generator (e.g. Solaris) - -Changes in 1.2.4.4 (18 Apr 2010) -- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok] -- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty -- Try to use bash or ksh regardless of functionality of /bin/sh -- Fix configure incompatibility with NetBSD sh -- Remove attempt to run under bash or ksh since have better NetBSD fix -- Fix win32/Makefile.gcc for MinGW [Bar-Lev] -- Add diagnostic messages when using CROSS_PREFIX in configure -- Added --sharedlibdir option to configure [Weigelt] -- Use hidden visibility attribute when available [Frysinger] - -Changes in 1.2.4.3 (10 Apr 2010) -- Only use CROSS_PREFIX in configure for ar and ranlib if they exist -- Use CROSS_PREFIX for nm [Bar-Lev] -- Assume _LARGEFILE64_SOURCE defined is equivalent to true -- Avoid use of undefined symbols in #if with && and || -- Make *64 prototypes in gzguts.h consistent with functions -- Add -shared load option for MinGW in configure [Bowler] -- Move z_off64_t to public interface, use instead of off64_t -- Remove ! from shell test in configure (not portable to Solaris) -- Change +0 macro tests to -0 for possibly increased portability - -Changes in 1.2.4.2 (9 Apr 2010) -- Add consistent carriage returns to readme.txt's in masmx86 and masmx64 -- Really provide prototypes for *64 functions when building without LFS -- Only define unlink() in minigzip.c if unistd.h not included -- Update README to point to contrib/vstudio project files -- Move projects/vc6 to old/ and remove projects/ -- Include stdlib.h in minigzip.c for setmode() definition under WinCE -- Clean up assembler builds in win32/Makefile.msc [Rowe] -- Include sys/types.h for Microsoft for off_t definition -- Fix memory leak on error in gz_open() -- Symbolize nm as $NM in configure [Weigelt] -- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt] -- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined -- Fix bug in gzeof() to take into account unused input data -- Avoid initialization of structures with variables in puff.c -- Updated win32/README-WIN32.txt [Rowe] - -Changes in 1.2.4.1 (28 Mar 2010) -- Remove the use of [a-z] constructs for sed in configure [gentoo 310225] -- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech] -- Restore "for debugging" comment on sprintf() in gzlib.c -- Remove fdopen for MVS from gzguts.h -- Put new README-WIN32.txt in win32 [Rowe] -- Add check for shell to configure and invoke another shell if needed -- Fix big fat stinking bug in gzseek() on uncompressed files -- Remove vestigial F_OPEN64 define in zutil.h -- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE -- Avoid errors on non-LFS systems when applications define LFS macros -- Set EXE to ".exe" in configure for MINGW [Kahle] -- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill] -- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev] -- Add DLL install in win32/makefile.gcc [Bar-Lev] -- Allow Linux* or linux* from uname in configure [Bar-Lev] -- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev] -- Add cross-compilation prefixes to configure [Bar-Lev] -- Match type exactly in gz_load() invocation in gzread.c -- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func -- Provide prototypes for *64 functions when building zlib without LFS -- Don't use -lc when linking shared library on MinGW -- Remove errno.h check in configure and vestigial errno code in zutil.h - -Changes in 1.2.4 (14 Mar 2010) -- Fix VER3 extraction in configure for no fourth subversion -- Update zlib.3, add docs to Makefile.in to make .pdf out of it -- Add zlib.3.pdf to distribution -- Don't set error code in gzerror() if passed pointer is NULL -- Apply destination directory fixes to CMakeLists.txt [Lowman] -- Move #cmakedefine's to a new zconf.in.cmakein -- Restore zconf.h for builds that don't use configure or cmake -- Add distclean to dummy Makefile for convenience -- Update and improve INDEX, README, and FAQ -- Update CMakeLists.txt for the return of zconf.h [Lowman] -- Update contrib/vstudio/vc9 and vc10 [Vollant] -- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc -- Apply license and readme changes to contrib/asm686 [Raiter] -- Check file name lengths and add -c option in minigzip.c [Li] -- Update contrib/amd64 and contrib/masmx86/ [Vollant] -- Avoid use of "eof" parameter in trees.c to not shadow library variable -- Update make_vms.com for removal of zlibdefs.h [Zinser] -- Update assembler code and vstudio projects in contrib [Vollant] -- Remove outdated assembler code contrib/masm686 and contrib/asm586 -- Remove old vc7 and vc8 from contrib/vstudio -- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe] -- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open() -- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant] -- Remove *64 functions from win32/zlib.def (they're not 64-bit yet) -- Fix bug in void-returning vsprintf() case in gzwrite.c -- Fix name change from inflate.h in contrib/inflate86/inffas86.c -- Check if temporary file exists before removing in make_vms.com [Zinser] -- Fix make install and uninstall for --static option -- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta] -- Update readme.txt in contrib/masmx64 and masmx86 to assemble - -Changes in 1.2.3.9 (21 Feb 2010) -- Expunge gzio.c -- Move as400 build information to old -- Fix updates in contrib/minizip and contrib/vstudio -- Add const to vsnprintf test in configure to avoid warnings [Weigelt] -- Delete zconf.h (made by configure) [Weigelt] -- Change zconf.in.h to zconf.h.in per convention [Weigelt] -- Check for NULL buf in gzgets() -- Return empty string for gzgets() with len == 1 (like fgets()) -- Fix description of gzgets() in zlib.h for end-of-file, NULL return -- Update minizip to 1.1 [Vollant] -- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c -- Note in zlib.h that gzerror() should be used to distinguish from EOF -- Remove use of snprintf() from gzlib.c -- Fix bug in gzseek() -- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant] -- Fix zconf.h generation in CMakeLists.txt [Lowman] -- Improve comments in zconf.h where modified by configure - -Changes in 1.2.3.8 (13 Feb 2010) -- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer] -- Use z_off64_t in gz_zero() and gz_skip() to match state->skip -- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t) -- Revert to Makefile.in from 1.2.3.6 (live with the clutter) -- Fix missing error return in gzflush(), add zlib.h note -- Add *64 functions to zlib.map [Levin] -- Fix signed/unsigned comparison in gz_comp() -- Use SFLAGS when testing shared linking in configure -- Add --64 option to ./configure to use -m64 with gcc -- Fix ./configure --help to correctly name options -- Have make fail if a test fails [Levin] -- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson] -- Remove assembler object files from contrib - -Changes in 1.2.3.7 (24 Jan 2010) -- Always gzopen() with O_LARGEFILE if available -- Fix gzdirect() to work immediately after gzopen() or gzdopen() -- Make gzdirect() more precise when the state changes while reading -- Improve zlib.h documentation in many places -- Catch memory allocation failure in gz_open() -- Complete close operation if seek forward in gzclose_w() fails -- Return Z_ERRNO from gzclose_r() if close() fails -- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL -- Return zero for gzwrite() errors to match zlib.h description -- Return -1 on gzputs() error to match zlib.h description -- Add zconf.in.h to allow recovery from configure modification [Weigelt] -- Fix static library permissions in Makefile.in [Weigelt] -- Avoid warnings in configure tests that hide functionality [Weigelt] -- Add *BSD and DragonFly to Linux case in configure [gentoo 123571] -- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212] -- Avoid access of uninitialized data for first inflateReset2 call [Gomes] -- Keep object files in subdirectories to reduce the clutter somewhat -- Remove default Makefile and zlibdefs.h, add dummy Makefile -- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_ -- Remove zlibdefs.h completely -- modify zconf.h instead - -Changes in 1.2.3.6 (17 Jan 2010) -- Avoid void * arithmetic in gzread.c and gzwrite.c -- Make compilers happier with const char * for gz_error message -- Avoid unused parameter warning in inflate.c -- Avoid signed-unsigned comparison warning in inflate.c -- Indent #pragma's for traditional C -- Fix usage of strwinerror() in glib.c, change to gz_strwinerror() -- Correct email address in configure for system options -- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser] -- Update zlib.map [Brown] -- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok] -- Apply various fixes to CMakeLists.txt [Lowman] -- Add checks on len in gzread() and gzwrite() -- Add error message for no more room for gzungetc() -- Remove zlib version check in gzwrite() -- Defer compression of gzprintf() result until need to -- Use snprintf() in gzdopen() if available -- Remove USE_MMAP configuration determination (only used by minigzip) -- Remove examples/pigz.c (available separately) -- Update examples/gun.c to 1.6 - -Changes in 1.2.3.5 (8 Jan 2010) -- Add space after #if in zutil.h for some compilers -- Fix relatively harmless bug in deflate_fast() [Exarevsky] -- Fix same problem in deflate_slow() -- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown] -- Add deflate_rle() for faster Z_RLE strategy run-length encoding -- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding -- Change name of "write" variable in inffast.c to avoid library collisions -- Fix premature EOF from gzread() in gzio.c [Brown] -- Use zlib header window size if windowBits is 0 in inflateInit2() -- Remove compressBound() call in deflate.c to avoid linking compress.o -- Replace use of errno in gz* with functions, support WinCE [Alves] -- Provide alternative to perror() in minigzip.c for WinCE [Alves] -- Don't use _vsnprintf on later versions of MSVC [Lowman] -- Add CMake build script and input file [Lowman] -- Update contrib/minizip to 1.1 [Svensson, Vollant] -- Moved nintendods directory from contrib to . -- Replace gzio.c with a new set of routines with the same functionality -- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above -- Update contrib/minizip to 1.1b -- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h - -Changes in 1.2.3.4 (21 Dec 2009) -- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility -- Update comments in configure and Makefile.in for default --shared -- Fix test -z's in configure [Marquess] -- Build examplesh and minigzipsh when not testing -- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h -- Import LDFLAGS from the environment in configure -- Fix configure to populate SFLAGS with discovered CFLAGS options -- Adapt make_vms.com to the new Makefile.in [Zinser] -- Add zlib2ansi script for C++ compilation [Marquess] -- Add _FILE_OFFSET_BITS=64 test to make test (when applicable) -- Add AMD64 assembler code for longest match to contrib [Teterin] -- Include options from $SFLAGS when doing $LDSHARED -- Simplify 64-bit file support by introducing z_off64_t type -- Make shared object files in objs directory to work around old Sun cc -- Use only three-part version number for Darwin shared compiles -- Add rc option to ar in Makefile.in for when ./configure not run -- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4* -- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile -- Protect against _FILE_OFFSET_BITS being defined when compiling zlib -- Rename Makefile.in targets allstatic to static and allshared to shared -- Fix static and shared Makefile.in targets to be independent -- Correct error return bug in gz_open() by setting state [Brown] -- Put spaces before ;;'s in configure for better sh compatibility -- Add pigz.c (parallel implementation of gzip) to examples/ -- Correct constant in crc32.c to UL [Leventhal] -- Reject negative lengths in crc32_combine() -- Add inflateReset2() function to work like inflateEnd()/inflateInit2() -- Include sys/types.h for _LARGEFILE64_SOURCE [Brown] -- Correct typo in doc/algorithm.txt [Janik] -- Fix bug in adler32_combine() [Zhu] -- Catch missing-end-of-block-code error in all inflates and in puff - Assures that random input to inflate eventually results in an error -- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/ -- Update ENOUGH and its usage to reflect discovered bounds -- Fix gzerror() error report on empty input file [Brown] -- Add ush casts in trees.c to avoid pedantic runtime errors -- Fix typo in zlib.h uncompress() description [Reiss] -- Correct inflate() comments with regard to automatic header detection -- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays) -- Put new version of gzlog (2.0) in examples with interruption recovery -- Add puff compile option to permit invalid distance-too-far streams -- Add puff TEST command options, ability to read piped input -- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but - _LARGEFILE64_SOURCE not defined -- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart -- Fix deflateSetDictionary() to use all 32K for output consistency -- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h) -- Clear bytes after deflate lookahead to avoid use of uninitialized data -- Change a limit in inftrees.c to be more transparent to Coverity Prevent -- Update win32/zlib.def with exported symbols from zlib.h -- Correct spelling error in zlib.h [Willem] -- Allow Z_BLOCK for deflate() to force a new block -- Allow negative bits in inflatePrime() to delete existing bit buffer -- Add Z_TREES flush option to inflate() to return at end of trees -- Add inflateMark() to return current state information for random access -- Add Makefile for NintendoDS to contrib [Costa] -- Add -w in configure compile tests to avoid spurious warnings [Beucler] -- Fix typos in zlib.h comments for deflateSetDictionary() -- Fix EOF detection in transparent gzread() [Maier] - -Changes in 1.2.3.3 (2 October 2006) -- Make --shared the default for configure, add a --static option -- Add compile option to permit invalid distance-too-far streams -- Add inflateUndermine() function which is required to enable above -- Remove use of "this" variable name for C++ compatibility [Marquess] -- Add testing of shared library in make test, if shared library built -- Use ftello() and fseeko() if available instead of ftell() and fseek() -- Provide two versions of all functions that use the z_off_t type for - binary compatibility -- a normal version and a 64-bit offset version, - per the Large File Support Extension when _LARGEFILE64_SOURCE is - defined; use the 64-bit versions by default when _FILE_OFFSET_BITS - is defined to be 64 -- Add a --uname= option to configure to perhaps help with cross-compiling - -Changes in 1.2.3.2 (3 September 2006) -- Turn off silly Borland warnings [Hay] -- Use off64_t and define _LARGEFILE64_SOURCE when present -- Fix missing dependency on inffixed.h in Makefile.in -- Rig configure --shared to build both shared and static [Teredesai, Truta] -- Remove zconf.in.h and instead create a new zlibdefs.h file -- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant] -- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt] - -Changes in 1.2.3.1 (16 August 2006) -- Add watcom directory with OpenWatcom make files [Daniel] -- Remove #undef of FAR in zconf.in.h for MVS [Fedtke] -- Update make_vms.com [Zinser] -- Use -fPIC for shared build in configure [Teredesai, Nicholson] -- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen] -- Use fdopen() (not _fdopen()) for Interix in zutil.h [BŠck] -- Add some FAQ entries about the contrib directory -- Update the MVS question in the FAQ -- Avoid extraneous reads after EOF in gzio.c [Brown] -- Correct spelling of "successfully" in gzio.c [Randers-Pehrson] -- Add comments to zlib.h about gzerror() usage [Brown] -- Set extra flags in gzip header in gzopen() like deflate() does -- Make configure options more compatible with double-dash conventions - [Weigelt] -- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen] -- Fix uninstall target in Makefile.in [Truta] -- Add pkgconfig support [Weigelt] -- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt] -- Replace set_data_type() with a more accurate detect_data_type() in - trees.c, according to the txtvsbin.txt document [Truta] -- Swap the order of #include and #include "zlib.h" in - gzio.c, example.c and minigzip.c [Truta] -- Shut up annoying VS2005 warnings about standard C deprecation [Rowe, - Truta] (where?) -- Fix target "clean" from win32/Makefile.bor [Truta] -- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe] -- Update zlib www home address in win32/DLL_FAQ.txt [Truta] -- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove] -- Enable browse info in the "Debug" and "ASM Debug" configurations in - the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta] -- Add pkgconfig support [Weigelt] -- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h, - for use in win32/zlib1.rc [Polushin, Rowe, Truta] -- Add a document that explains the new text detection scheme to - doc/txtvsbin.txt [Truta] -- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta] -- Move algorithm.txt into doc/ [Truta] -- Synchronize FAQ with website -- Fix compressBound(), was low for some pathological cases [Fearnley] -- Take into account wrapper variations in deflateBound() -- Set examples/zpipe.c input and output to binary mode for Windows -- Update examples/zlib_how.html with new zpipe.c (also web site) -- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems - that gcc became pickier in 4.0) -- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain - un-versioned, the patch adds versioning only for symbols introduced in - zlib-1.2.0 or later. It also declares as local those symbols which are - not designed to be exported." [Levin] -- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure -- Do not initialize global static by default in trees.c, add a response - NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess] -- Don't use strerror() in gzio.c under WinCE [Yakimov] -- Don't use errno.h in zutil.h under WinCE [Yakimov] -- Move arguments for AR to its usage to allow replacing ar [Marot] -- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson] -- Improve inflateInit() and inflateInit2() documentation -- Fix structure size comment in inflate.h -- Change configure help option from --h* to --help [Santos] - -Changes in 1.2.3 (18 July 2005) -- Apply security vulnerability fixes to contrib/infback9 as well -- Clean up some text files (carriage returns, trailing space) -- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant] - -Changes in 1.2.2.4 (11 July 2005) -- Add inflatePrime() function for starting inflation at bit boundary -- Avoid some Visual C warnings in deflate.c -- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit - compile -- Fix some spelling errors in comments [Betts] -- Correct inflateInit2() error return documentation in zlib.h -- Add zran.c example of compressed data random access to examples - directory, shows use of inflatePrime() -- Fix cast for assignments to strm->state in inflate.c and infback.c -- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer] -- Move declarations of gf2 functions to right place in crc32.c [Oberhumer] -- Add cast in trees.c t avoid a warning [Oberhumer] -- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer] -- Update make_vms.com [Zinser] -- Initialize state->write in inflateReset() since copied in inflate_fast() -- Be more strict on incomplete code sets in inflate_table() and increase - ENOUGH and MAXD -- this repairs a possible security vulnerability for - invalid inflate input. Thanks to Tavis Ormandy and Markus Oberhumer for - discovering the vulnerability and providing test cases. -- Add ia64 support to configure for HP-UX [Smith] -- Add error return to gzread() for format or i/o error [Levin] -- Use malloc.h for OS/2 [Necasek] - -Changes in 1.2.2.3 (27 May 2005) -- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile -- Typecast fread() return values in gzio.c [Vollant] -- Remove trailing space in minigzip.c outmode (VC++ can't deal with it) -- Fix crc check bug in gzread() after gzungetc() [Heiner] -- Add the deflateTune() function to adjust internal compression parameters -- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack) -- Remove an incorrect assertion in examples/zpipe.c -- Add C++ wrapper in infback9.h [Donais] -- Fix bug in inflateCopy() when decoding fixed codes -- Note in zlib.h how much deflateSetDictionary() actually uses -- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used) -- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer] -- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer] -- Add gzdirect() function to indicate transparent reads -- Update contrib/minizip [Vollant] -- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer] -- Add casts in crc32.c to avoid warnings [Oberhumer] -- Add contrib/masmx64 [Vollant] -- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant] - -Changes in 1.2.2.2 (30 December 2004) -- Replace structure assignments in deflate.c and inflate.c with zmemcpy to - avoid implicit memcpy calls (portability for no-library compilation) -- Increase sprintf() buffer size in gzdopen() to allow for large numbers -- Add INFLATE_STRICT to check distances against zlib header -- Improve WinCE errno handling and comments [Chang] -- Remove comment about no gzip header processing in FAQ -- Add Z_FIXED strategy option to deflateInit2() to force fixed trees -- Add updated make_vms.com [Coghlan], update README -- Create a new "examples" directory, move gzappend.c there, add zpipe.c, - fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html. -- Add FAQ entry and comments in deflate.c on uninitialized memory access -- Add Solaris 9 make options in configure [Gilbert] -- Allow strerror() usage in gzio.c for STDC -- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer] -- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant] -- Use z_off_t for adler32_combine() and crc32_combine() lengths -- Make adler32() much faster for small len -- Use OS_CODE in deflate() default gzip header - -Changes in 1.2.2.1 (31 October 2004) -- Allow inflateSetDictionary() call for raw inflate -- Fix inflate header crc check bug for file names and comments -- Add deflateSetHeader() and gz_header structure for custom gzip headers -- Add inflateGetheader() to retrieve gzip headers -- Add crc32_combine() and adler32_combine() functions -- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list -- Use zstreamp consistently in zlib.h (inflate_back functions) -- Remove GUNZIP condition from definition of inflate_mode in inflate.h - and in contrib/inflate86/inffast.S [Truta, Anderson] -- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson] -- Update projects/README.projects and projects/visualc6 [Truta] -- Update win32/DLL_FAQ.txt [Truta] -- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta] -- Deprecate Z_ASCII; use Z_TEXT instead [Truta] -- Use a new algorithm for setting strm->data_type in trees.c [Truta] -- Do not define an exit() prototype in zutil.c unless DEBUG defined -- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta] -- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate() -- Fix Darwin build version identification [Peterson] - -Changes in 1.2.2 (3 October 2004) -- Update zlib.h comments on gzip in-memory processing -- Set adler to 1 in inflateReset() to support Java test suite [Walles] -- Add contrib/dotzlib [Ravn] -- Update win32/DLL_FAQ.txt [Truta] -- Update contrib/minizip [Vollant] -- Move contrib/visual-basic.txt to old/ [Truta] -- Fix assembler builds in projects/visualc6/ [Truta] - -Changes in 1.2.1.2 (9 September 2004) -- Update INDEX file -- Fix trees.c to update strm->data_type (no one ever noticed!) -- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown] -- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE) -- Add limited multitasking protection to DYNAMIC_CRC_TABLE -- Add NO_vsnprintf for VMS in zutil.h [Mozilla] -- Don't declare strerror() under VMS [Mozilla] -- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize -- Update contrib/ada [Anisimkov] -- Update contrib/minizip [Vollant] -- Fix configure to not hardcode directories for Darwin [Peterson] -- Fix gzio.c to not return error on empty files [Brown] -- Fix indentation; update version in contrib/delphi/ZLib.pas and - contrib/pascal/zlibpas.pas [Truta] -- Update mkasm.bat in contrib/masmx86 [Truta] -- Update contrib/untgz [Truta] -- Add projects/README.projects [Truta] -- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta] -- Update win32/DLL_FAQ.txt [Truta] -- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta] -- Remove an unnecessary assignment to curr in inftrees.c [Truta] -- Add OS/2 to exe builds in configure [Poltorak] -- Remove err dummy parameter in zlib.h [Kientzle] - -Changes in 1.2.1.1 (9 January 2004) -- Update email address in README -- Several FAQ updates -- Fix a big fat bug in inftrees.c that prevented decoding valid - dynamic blocks with only literals and no distance codes -- - Thanks to "Hot Emu" for the bug report and sample file -- Add a note to puff.c on no distance codes case. - -Changes in 1.2.1 (17 November 2003) -- Remove a tab in contrib/gzappend/gzappend.c -- Update some interfaces in contrib for new zlib functions -- Update zlib version number in some contrib entries -- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] -- Support shared libraries on Hurd and KFreeBSD [Brown] -- Fix error in NO_DIVIDE option of adler32.c - -Changes in 1.2.0.8 (4 November 2003) -- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas -- Add experimental NO_DIVIDE #define in adler32.c - - Possibly faster on some processors (let me know if it is) -- Correct Z_BLOCK to not return on first inflate call if no wrap -- Fix strm->data_type on inflate() return to correctly indicate EOB -- Add deflatePrime() function for appending in the middle of a byte -- Add contrib/gzappend for an example of appending to a stream -- Update win32/DLL_FAQ.txt [Truta] -- Delete Turbo C comment in README [Truta] -- Improve some indentation in zconf.h [Truta] -- Fix infinite loop on bad input in configure script [Church] -- Fix gzeof() for concatenated gzip files [Johnson] -- Add example to contrib/visual-basic.txt [Michael B.] -- Add -p to mkdir's in Makefile.in [vda] -- Fix configure to properly detect presence or lack of printf functions -- Add AS400 support [Monnerat] -- Add a little Cygwin support [Wilson] - -Changes in 1.2.0.7 (21 September 2003) -- Correct some debug formats in contrib/infback9 -- Cast a type in a debug statement in trees.c -- Change search and replace delimiter in configure from % to # [Beebe] -- Update contrib/untgz to 0.2 with various fixes [Truta] -- Add build support for Amiga [Nikl] -- Remove some directories in old that have been updated to 1.2 -- Add dylib building for Mac OS X in configure and Makefile.in -- Remove old distribution stuff from Makefile -- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X -- Update links in README - -Changes in 1.2.0.6 (13 September 2003) -- Minor FAQ updates -- Update contrib/minizip to 1.00 [Vollant] -- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] -- Update POSTINC comment for 68060 [Nikl] -- Add contrib/infback9 with deflate64 decoding (unsupported) -- For MVS define NO_vsnprintf and undefine FAR [van Burik] -- Add pragma for fdopen on MVS [van Burik] - -Changes in 1.2.0.5 (8 September 2003) -- Add OF to inflateBackEnd() declaration in zlib.h -- Remember start when using gzdopen in the middle of a file -- Use internal off_t counters in gz* functions to properly handle seeks -- Perform more rigorous check for distance-too-far in inffast.c -- Add Z_BLOCK flush option to return from inflate at block boundary -- Set strm->data_type on return from inflate - - Indicate bits unused, if at block boundary, and if in last block -- Replace size_t with ptrdiff_t in crc32.c, and check for correct size -- Add condition so old NO_DEFLATE define still works for compatibility -- FAQ update regarding the Windows DLL [Truta] -- INDEX update: add qnx entry, remove aix entry [Truta] -- Install zlib.3 into mandir [Wilson] -- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] -- Adapt the zlib interface to the new DLL convention guidelines [Truta] -- Introduce ZLIB_WINAPI macro to allow the export of functions using - the WINAPI calling convention, for Visual Basic [Vollant, Truta] -- Update msdos and win32 scripts and makefiles [Truta] -- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] -- Add contrib/ada [Anisimkov] -- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] -- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] -- Add contrib/masm686 [Truta] -- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm - [Truta, Vollant] -- Update contrib/delphi; rename to contrib/pascal; add example [Truta] -- Remove contrib/delphi2; add a new contrib/delphi [Truta] -- Avoid inclusion of the nonstandard in contrib/iostream, - and fix some method prototypes [Truta] -- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip - [Truta] -- Avoid the use of backslash (\) in contrib/minizip [Vollant] -- Fix file time handling in contrib/untgz; update makefiles [Truta] -- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines - [Vollant] -- Remove contrib/vstudio/vc15_16 [Vollant] -- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] -- Update README.contrib [Truta] -- Invert the assignment order of match_head and s->prev[...] in - INSERT_STRING [Truta] -- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings - [Truta] -- Compare function pointers with 0, not with NULL or Z_NULL [Truta] -- Fix prototype of syncsearch in inflate.c [Truta] -- Introduce ASMINF macro to be enabled when using an ASM implementation - of inflate_fast [Truta] -- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] -- Modify test_gzio in example.c to take a single file name as a - parameter [Truta] -- Exit the example.c program if gzopen fails [Truta] -- Add type casts around strlen in example.c [Truta] -- Remove casting to sizeof in minigzip.c; give a proper type - to the variable compared with SUFFIX_LEN [Truta] -- Update definitions of STDC and STDC99 in zconf.h [Truta] -- Synchronize zconf.h with the new Windows DLL interface [Truta] -- Use SYS16BIT instead of __32BIT__ to distinguish between - 16- and 32-bit platforms [Truta] -- Use far memory allocators in small 16-bit memory models for - Turbo C [Truta] -- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in - zlibCompileFlags [Truta] -- Cygwin has vsnprintf [Wilson] -- In Windows16, OS_CODE is 0, as in MSDOS [Truta] -- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] - -Changes in 1.2.0.4 (10 August 2003) -- Minor FAQ updates -- Be more strict when checking inflateInit2's windowBits parameter -- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well -- Add gzip wrapper option to deflateInit2 using windowBits -- Add updated QNX rule in configure and qnx directory [Bonnefoy] -- Make inflate distance-too-far checks more rigorous -- Clean up FAR usage in inflate -- Add casting to sizeof() in gzio.c and minigzip.c - -Changes in 1.2.0.3 (19 July 2003) -- Fix silly error in gzungetc() implementation [Vollant] -- Update contrib/minizip and contrib/vstudio [Vollant] -- Fix printf format in example.c -- Correct cdecl support in zconf.in.h [Anisimkov] -- Minor FAQ updates - -Changes in 1.2.0.2 (13 July 2003) -- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons -- Attempt to avoid warnings in crc32.c for pointer-int conversion -- Add AIX to configure, remove aix directory [Bakker] -- Add some casts to minigzip.c -- Improve checking after insecure sprintf() or vsprintf() calls -- Remove #elif's from crc32.c -- Change leave label to inf_leave in inflate.c and infback.c to avoid - library conflicts -- Remove inflate gzip decoding by default--only enable gzip decoding by - special request for stricter backward compatibility -- Add zlibCompileFlags() function to return compilation information -- More typecasting in deflate.c to avoid warnings -- Remove leading underscore from _Capital #defines [Truta] -- Fix configure to link shared library when testing -- Add some Windows CE target adjustments [Mai] -- Remove #define ZLIB_DLL in zconf.h [Vollant] -- Add zlib.3 [Rodgers] -- Update RFC URL in deflate.c and algorithm.txt [Mai] -- Add zlib_dll_FAQ.txt to contrib [Truta] -- Add UL to some constants [Truta] -- Update minizip and vstudio [Vollant] -- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h -- Expand use of NO_DUMMY_DECL to avoid all dummy structures -- Added iostream3 to contrib [Schwardt] -- Replace rewind() with fseek() for WinCE [Truta] -- Improve setting of zlib format compression level flags - - Report 0 for huffman and rle strategies and for level == 0 or 1 - - Report 2 only for level == 6 -- Only deal with 64K limit when necessary at compile time [Truta] -- Allow TOO_FAR check to be turned off at compile time [Truta] -- Add gzclearerr() function [Souza] -- Add gzungetc() function - -Changes in 1.2.0.1 (17 March 2003) -- Add Z_RLE strategy for run-length encoding [Truta] - - When Z_RLE requested, restrict matches to distance one - - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE -- Correct FASTEST compilation to allow level == 0 -- Clean up what gets compiled for FASTEST -- Incorporate changes to zconf.in.h [Vollant] - - Refine detection of Turbo C need for dummy returns - - Refine ZLIB_DLL compilation - - Include additional header file on VMS for off_t typedef -- Try to use _vsnprintf where it supplants vsprintf [Vollant] -- Add some casts in inffast.c -- Enchance comments in zlib.h on what happens if gzprintf() tries to - write more than 4095 bytes before compression -- Remove unused state from inflateBackEnd() -- Remove exit(0) from minigzip.c, example.c -- Get rid of all those darn tabs -- Add "check" target to Makefile.in that does the same thing as "test" -- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in -- Update contrib/inflate86 [Anderson] -- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] -- Add msdos and win32 directories with makefiles [Truta] -- More additions and improvements to the FAQ - -Changes in 1.2.0 (9 March 2003) -- New and improved inflate code - - About 20% faster - - Does not allocate 32K window unless and until needed - - Automatically detects and decompresses gzip streams - - Raw inflate no longer needs an extra dummy byte at end - - Added inflateBack functions using a callback interface--even faster - than inflate, useful for file utilities (gzip, zip) - - Added inflateCopy() function to record state for random access on - externally generated deflate streams (e.g. in gzip files) - - More readable code (I hope) -- New and improved crc32() - - About 50% faster, thanks to suggestions from Rodney Brown -- Add deflateBound() and compressBound() functions -- Fix memory leak in deflateInit2() -- Permit setting dictionary for raw deflate (for parallel deflate) -- Fix const declaration for gzwrite() -- Check for some malloc() failures in gzio.c -- Fix bug in gzopen() on single-byte file 0x1f -- Fix bug in gzread() on concatenated file with 0x1f at end of buffer - and next buffer doesn't start with 0x8b -- Fix uncompress() to return Z_DATA_ERROR on truncated input -- Free memory at end of example.c -- Remove MAX #define in trees.c (conflicted with some libraries) -- Fix static const's in deflate.c, gzio.c, and zutil.[ch] -- Declare malloc() and free() in gzio.c if STDC not defined -- Use malloc() instead of calloc() in zutil.c if int big enough -- Define STDC for AIX -- Add aix/ with approach for compiling shared library on AIX -- Add HP-UX support for shared libraries in configure -- Add OpenUNIX support for shared libraries in configure -- Use $cc instead of gcc to build shared library -- Make prefix directory if needed when installing -- Correct Macintosh avoidance of typedef Byte in zconf.h -- Correct Turbo C memory allocation when under Linux -- Use libz.a instead of -lz in Makefile (assure use of compiled library) -- Update configure to check for snprintf or vsnprintf functions and their - return value, warn during make if using an insecure function -- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that - is lost when library is used--resolution is to build new zconf.h -- Documentation improvements (in zlib.h): - - Document raw deflate and inflate - - Update RFCs URL - - Point out that zlib and gzip formats are different - - Note that Z_BUF_ERROR is not fatal - - Document string limit for gzprintf() and possible buffer overflow - - Note requirement on avail_out when flushing - - Note permitted values of flush parameter of inflate() -- Add some FAQs (and even answers) to the FAQ -- Add contrib/inflate86/ for x86 faster inflate -- Add contrib/blast/ for PKWare Data Compression Library decompression -- Add contrib/puff/ simple inflate for deflate format description - -Changes in 1.1.4 (11 March 2002) -- ZFREE was repeated on same allocation on some error conditions. - This creates a security problem described in - http://www.zlib.org/advisory-2002-03-11.txt -- Returned incorrect error (Z_MEM_ERROR) on some invalid data -- Avoid accesses before window for invalid distances with inflate window - less than 32K. -- force windowBits > 8 to avoid a bug in the encoder for a window size - of 256 bytes. (A complete fix will be available in 1.1.5). - -Changes in 1.1.3 (9 July 1998) -- fix "an inflate input buffer bug that shows up on rare but persistent - occasions" (Mark) -- fix gzread and gztell for concatenated .gz files (Didier Le Botlan) -- fix gzseek(..., SEEK_SET) in write mode -- fix crc check after a gzeek (Frank Faubert) -- fix miniunzip when the last entry in a zip file is itself a zip file - (J Lillge) -- add contrib/asm586 and contrib/asm686 (Brian Raiter) - See http://www.muppetlabs.com/~breadbox/software/assembly.html -- add support for Delphi 3 in contrib/delphi (Bob Dellaca) -- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti) -- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren) -- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks) -- added a FAQ file - -- Support gzdopen on Mac with Metrowerks (Jason Linhart) -- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart) -- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young) -- avoid some warnings with Borland C (Tom Tanner) -- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant) -- emulate utime() for WIN32 in contrib/untgz (Gilles Vollant) -- allow several arguments to configure (Tim Mooney, Frodo Looijaard) -- use libdir and includedir in Makefile.in (Tim Mooney) -- support shared libraries on OSF1 V4 (Tim Mooney) -- remove so_locations in "make clean" (Tim Mooney) -- fix maketree.c compilation error (Glenn, Mark) -- Python interface to zlib now in Python 1.5 (Jeremy Hylton) -- new Makefile.riscos (Rich Walker) -- initialize static descriptors in trees.c for embedded targets (Nick Smith) -- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith) -- add the OS/2 files in Makefile.in too (Andrew Zabolotny) -- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane) -- fix maketree.c to allow clean compilation of inffixed.h (Mark) -- fix parameter check in deflateCopy (Gunther Nikl) -- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler) -- Many portability patches by Christian Spieler: - . zutil.c, zutil.h: added "const" for zmem* - . Make_vms.com: fixed some typos - . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists - . msdos/Makefile.msc: remove "default rtl link library" info from obj files - . msdos/Makefile.*: use model-dependent name for the built zlib library - . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc: - new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT) -- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane) -- replace __far with _far for better portability (Christian Spieler, Tom Lane) -- fix test for errno.h in configure (Tim Newsham) - -Changes in 1.1.2 (19 March 98) -- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant) - See http://www.winimage.com/zLibDll/unzip.html -- preinitialize the inflate tables for fixed codes, to make the code - completely thread safe (Mark) -- some simplifications and slight speed-up to the inflate code (Mark) -- fix gzeof on non-compressed files (Allan Schrum) -- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs) -- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn) -- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny) -- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori) -- do not wrap extern "C" around system includes (Tom Lane) -- mention zlib binding for TCL in README (Andreas Kupries) -- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert) -- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson) -- allow "configure --prefix $HOME" (Tim Mooney) -- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson) -- move Makefile.sas to amiga/Makefile.sas - -Changes in 1.1.1 (27 Feb 98) -- fix macros _tr_tally_* in deflate.h for debug mode (Glenn Randers-Pehrson) -- remove block truncation heuristic which had very marginal effect for zlib - (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the - compression ratio on some files. This also allows inlining _tr_tally for - matches in deflate_slow. -- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier) - -Changes in 1.1.0 (24 Feb 98) -- do not return STREAM_END prematurely in inflate (John Bowler) -- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler) -- compile with -DFASTEST to get compression code optimized for speed only -- in minigzip, try mmap'ing the input file first (Miguel Albrecht) -- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain - on Sun but significant on HP) - -- add a pointer to experimental unzip library in README (Gilles Vollant) -- initialize variable gcc in configure (Chris Herborth) - -Changes in 1.0.9 (17 Feb 1998) -- added gzputs and gzgets functions -- do not clear eof flag in gzseek (Mark Diekhans) -- fix gzseek for files in transparent mode (Mark Diekhans) -- do not assume that vsprintf returns the number of bytes written (Jens Krinke) -- replace EXPORT with ZEXPORT to avoid conflict with other programs -- added compress2 in zconf.h, zlib.def, zlib.dnt -- new asm code from Gilles Vollant in contrib/asm386 -- simplify the inflate code (Mark): - . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new() - . ZALLOC the length list in inflate_trees_fixed() instead of using stack - . ZALLOC the value area for huft_build() instead of using stack - . Simplify Z_FINISH check in inflate() - -- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8 -- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi) -- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with - the declaration of FAR (Gilles VOllant) -- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann) -- read_buf buf parameter of type Bytef* instead of charf* -- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout) -- do not redeclare unlink in minigzip.c for WIN32 (John Bowler) -- fix check for presence of directories in "make install" (Ian Willis) - -Changes in 1.0.8 (27 Jan 1998) -- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant) -- fix gzgetc and gzputc for big endian systems (Markus Oberhumer) -- added compress2() to allow setting the compression level -- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong) -- use constant arrays for the static trees in trees.c instead of computing - them at run time (thanks to Ken Raeburn for this suggestion). To create - trees.h, compile with GEN_TREES_H and run "make test". -- check return code of example in "make test" and display result -- pass minigzip command line options to file_compress -- simplifying code of inflateSync to avoid gcc 2.8 bug - -- support CC="gcc -Wall" in configure -s (QingLong) -- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn) -- fix test for shared library support to avoid compiler warnings -- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant) -- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit) -- do not use fdopen for Metrowerks on Mac (Brad Pettit)) -- add checks for gzputc and gzputc in example.c -- avoid warnings in gzio.c and deflate.c (Andreas Kleinert) -- use const for the CRC table (Ken Raeburn) -- fixed "make uninstall" for shared libraries -- use Tracev instead of Trace in infblock.c -- in example.c use correct compressed length for test_sync -- suppress +vnocompatwarnings in configure for HPUX (not always supported) - -Changes in 1.0.7 (20 Jan 1998) -- fix gzseek which was broken in write mode -- return error for gzseek to negative absolute position -- fix configure for Linux (Chun-Chung Chen) -- increase stack space for MSC (Tim Wegner) -- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant) -- define EXPORTVA for gzprintf (Gilles Vollant) -- added man page zlib.3 (Rick Rodgers) -- for contrib/untgz, fix makedir() and improve Makefile - -- check gzseek in write mode in example.c -- allocate extra buffer for seeks only if gzseek is actually called -- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant) -- add inflateSyncPoint in zconf.h -- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def - -Changes in 1.0.6 (19 Jan 1998) -- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and - gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code) -- Fix a deflate bug occurring only with compression level 0 (thanks to - Andy Buckler for finding this one). -- In minigzip, pass transparently also the first byte for .Z files. -- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress() -- check Z_FINISH in inflate (thanks to Marc Schluper) -- Implement deflateCopy (thanks to Adam Costello) -- make static libraries by default in configure, add --shared option. -- move MSDOS or Windows specific files to directory msdos -- suppress the notion of partial flush to simplify the interface - (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4) -- suppress history buffer provided by application to simplify the interface - (this feature was not implemented anyway in 1.0.4) -- next_in and avail_in must be initialized before calling inflateInit or - inflateInit2 -- add EXPORT in all exported functions (for Windows DLL) -- added Makefile.nt (thanks to Stephen Williams) -- added the unsupported "contrib" directory: - contrib/asm386/ by Gilles Vollant - 386 asm code replacing longest_match(). - contrib/iostream/ by Kevin Ruland - A C++ I/O streams interface to the zlib gz* functions - contrib/iostream2/ by Tyge Løvset - Another C++ I/O streams interface - contrib/untgz/ by "Pedro A. Aranda Guti\irrez" - A very simple tar.gz file extractor using zlib - contrib/visual-basic.txt by Carlos Rios - How to use compress(), uncompress() and the gz* functions from VB. -- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression - level) in minigzip (thanks to Tom Lane) - -- use const for rommable constants in deflate -- added test for gzseek and gztell in example.c -- add undocumented function inflateSyncPoint() (hack for Paul Mackerras) -- add undocumented function zError to convert error code to string - (for Tim Smithers) -- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code. -- Use default memcpy for Symantec MSDOS compiler. -- Add EXPORT keyword for check_func (needed for Windows DLL) -- add current directory to LD_LIBRARY_PATH for "make test" -- create also a link for libz.so.1 -- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura) -- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX) -- added -soname for Linux in configure (Chun-Chung Chen, -- assign numbers to the exported functions in zlib.def (for Windows DLL) -- add advice in zlib.h for best usage of deflateSetDictionary -- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn) -- allow compilation with ANSI keywords only enabled for TurboC in large model -- avoid "versionString"[0] (Borland bug) -- add NEED_DUMMY_RETURN for Borland -- use variable z_verbose for tracing in debug mode (L. Peter Deutsch). -- allow compilation with CC -- defined STDC for OS/2 (David Charlap) -- limit external names to 8 chars for MVS (Thomas Lund) -- in minigzip.c, use static buffers only for 16-bit systems -- fix suffix check for "minigzip -d foo.gz" -- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee) -- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau) -- added makelcc.bat for lcc-win32 (Tom St Denis) -- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe) -- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion. -- check for unistd.h in configure (for off_t) -- remove useless check parameter in inflate_blocks_free -- avoid useless assignment of s->check to itself in inflate_blocks_new -- do not flush twice in gzclose (thanks to Ken Raeburn) -- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h -- use NO_ERRNO_H instead of enumeration of operating systems with errno.h -- work around buggy fclose on pipes for HP/UX -- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson) -- fix configure if CC is already equal to gcc - -Changes in 1.0.5 (3 Jan 98) -- Fix inflate to terminate gracefully when fed corrupted or invalid data -- Use const for rommable constants in inflate -- Eliminate memory leaks on error conditions in inflate -- Removed some vestigial code in inflate -- Update web address in README - -Changes in 1.0.4 (24 Jul 96) -- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF - bit, so the decompressor could decompress all the correct data but went - on to attempt decompressing extra garbage data. This affected minigzip too. -- zlibVersion and gzerror return const char* (needed for DLL) -- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) -- use z_error only for DEBUG (avoid problem with DLLs) - -Changes in 1.0.3 (2 Jul 96) -- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS - small and medium models; this makes the library incompatible with previous - versions for these models. (No effect in large model or on other systems.) -- return OK instead of BUF_ERROR if previous deflate call returned with - avail_out as zero but there is nothing to do -- added memcmp for non STDC compilers -- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly) -- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO) -- better check for 16-bit mode MSC (avoids problem with Symantec) - -Changes in 1.0.2 (23 May 96) -- added Windows DLL support -- added a function zlibVersion (for the DLL support) -- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model) -- Bytef is define's instead of typedef'd only for Borland C -- avoid reading uninitialized memory in example.c -- mention in README that the zlib format is now RFC1950 -- updated Makefile.dj2 -- added algorithm.doc - -Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion] -- fix array overlay in deflate.c which sometimes caused bad compressed data -- fix inflate bug with empty stored block -- fix MSDOS medium model which was broken in 0.99 -- fix deflateParams() which could generated bad compressed data. -- Bytef is define'd instead of typedef'ed (work around Borland bug) -- added an INDEX file -- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32), - Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas) -- speed up adler32 for modern machines without auto-increment -- added -ansi for IRIX in configure -- static_init_done in trees.c is an int -- define unlink as delete for VMS -- fix configure for QNX -- add configure branch for SCO and HPUX -- avoid many warnings (unused variables, dead assignments, etc...) -- no fdopen for BeOS -- fix the Watcom fix for 32 bit mode (define FAR as empty) -- removed redefinition of Byte for MKWERKS -- work around an MWKERKS bug (incorrect merge of all .h files) - -Changes in 0.99 (27 Jan 96) -- allow preset dictionary shared between compressor and decompressor -- allow compression level 0 (no compression) -- add deflateParams in zlib.h: allow dynamic change of compression level - and compression strategy. -- test large buffers and deflateParams in example.c -- add optional "configure" to build zlib as a shared library -- suppress Makefile.qnx, use configure instead -- fixed deflate for 64-bit systems (detected on Cray) -- fixed inflate_blocks for 64-bit systems (detected on Alpha) -- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2) -- always return Z_BUF_ERROR when deflate() has nothing to do -- deflateInit and inflateInit are now macros to allow version checking -- prefix all global functions and types with z_ with -DZ_PREFIX -- make falloc completely reentrant (inftrees.c) -- fixed very unlikely race condition in ct_static_init -- free in reverse order of allocation to help memory manager -- use zlib-1.0/* instead of zlib/* inside the tar.gz -- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith - -Wconversion -Wstrict-prototypes -Wmissing-prototypes" -- allow gzread on concatenated .gz files -- deflateEnd now returns Z_DATA_ERROR if it was premature -- deflate is finally (?) fully deterministic (no matches beyond end of input) -- Document Z_SYNC_FLUSH -- add uninstall in Makefile -- Check for __cpluplus in zlib.h -- Better test in ct_align for partial flush -- avoid harmless warnings for Borland C++ -- initialize hash_head in deflate.c -- avoid warning on fdopen (gzio.c) for HP cc -Aa -- include stdlib.h for STDC compilers -- include errno.h for Cray -- ignore error if ranlib doesn't exist -- call ranlib twice for NeXTSTEP -- use exec_prefix instead of prefix for libz.a -- renamed ct_* as _tr_* to avoid conflict with applications -- clear z->msg in inflateInit2 before any error return -- initialize opaque in example.c, gzio.c, deflate.c and inflate.c -- fixed typo in zconf.h (_GNUC__ => __GNUC__) -- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode) -- fix typo in Make_vms.com (f$trnlnm -> f$getsyi) -- in fcalloc, normalize pointer if size > 65520 bytes -- don't use special fcalloc for 32 bit Borland C++ -- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc... -- use Z_BINARY instead of BINARY -- document that gzclose after gzdopen will close the file -- allow "a" as mode in gzopen. -- fix error checking in gzread -- allow skipping .gz extra-field on pipes -- added reference to Perl interface in README -- put the crc table in FAR data (I dislike more and more the medium model :) -- added get_crc_table -- added a dimension to all arrays (Borland C can't count). -- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast -- guard against multiple inclusion of *.h (for precompiled header on Mac) -- Watcom C pretends to be Microsoft C small model even in 32 bit mode. -- don't use unsized arrays to avoid silly warnings by Visual C++: - warning C4746: 'inflate_mask' : unsized array treated as '__far' - (what's wrong with far data in far model?). -- define enum out of inflate_blocks_state to allow compilation with C++ - -Changes in 0.95 (16 Aug 95) -- fix MSDOS small and medium model (now easier to adapt to any compiler) -- inlined send_bits -- fix the final (:-) bug for deflate with flush (output was correct but - not completely flushed in rare occasions). -- default window size is same for compression and decompression - (it's now sufficient to set MAX_WBITS in zconf.h). -- voidp -> voidpf and voidnp -> voidp (for consistency with other - typedefs and because voidnp was not near in large model). - -Changes in 0.94 (13 Aug 95) -- support MSDOS medium model -- fix deflate with flush (could sometimes generate bad output) -- fix deflateReset (zlib header was incorrectly suppressed) -- added support for VMS -- allow a compression level in gzopen() -- gzflush now calls fflush -- For deflate with flush, flush even if no more input is provided. -- rename libgz.a as libz.a -- avoid complex expression in infcodes.c triggering Turbo C bug -- work around a problem with gcc on Alpha (in INSERT_STRING) -- don't use inline functions (problem with some gcc versions) -- allow renaming of Byte, uInt, etc... with #define. -- avoid warning about (unused) pointer before start of array in deflate.c -- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c -- avoid reserved word 'new' in trees.c - -Changes in 0.93 (25 June 95) -- temporarily disable inline functions -- make deflate deterministic -- give enough lookahead for PARTIAL_FLUSH -- Set binary mode for stdin/stdout in minigzip.c for OS/2 -- don't even use signed char in inflate (not portable enough) -- fix inflate memory leak for segmented architectures - -Changes in 0.92 (3 May 95) -- don't assume that char is signed (problem on SGI) -- Clear bit buffer when starting a stored block -- no memcpy on Pyramid -- suppressed inftest.c -- optimized fill_window, put longest_match inline for gcc -- optimized inflate on stored blocks. -- untabify all sources to simplify patches - -Changes in 0.91 (2 May 95) -- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h -- Document the memory requirements in zconf.h -- added "make install" -- fix sync search logic in inflateSync -- deflate(Z_FULL_FLUSH) now works even if output buffer too short -- after inflateSync, don't scare people with just "lo world" -- added support for DJGPP - -Changes in 0.9 (1 May 95) -- don't assume that zalloc clears the allocated memory (the TurboC bug - was Mark's bug after all :) -- let again gzread copy uncompressed data unchanged (was working in 0.71) -- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented -- added a test of inflateSync in example.c -- moved MAX_WBITS to zconf.h because users might want to change that. -- document explicitly that zalloc(64K) on MSDOS must return a normalized - pointer (zero offset) -- added Makefiles for Microsoft C, Turbo C, Borland C++ -- faster crc32() - -Changes in 0.8 (29 April 95) -- added fast inflate (inffast.c) -- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this - is incompatible with previous versions of zlib which returned Z_OK. -- work around a TurboC compiler bug (bad code for b << 0, see infutil.h) - (actually that was not a compiler bug, see 0.81 above) -- gzread no longer reads one extra byte in certain cases -- In gzio destroy(), don't reference a freed structure -- avoid many warnings for MSDOS -- avoid the ERROR symbol which is used by MS Windows - -Changes in 0.71 (14 April 95) -- Fixed more MSDOS compilation problems :( There is still a bug with - TurboC large model. - -Changes in 0.7 (14 April 95) -- Added full inflate support. -- Simplified the crc32() interface. The pre- and post-conditioning - (one's complement) is now done inside crc32(). WARNING: this is - incompatible with previous versions; see zlib.h for the new usage. - -Changes in 0.61 (12 April 95) -- workaround for a bug in TurboC. example and minigzip now work on MSDOS. - -Changes in 0.6 (11 April 95) -- added minigzip.c -- added gzdopen to reopen a file descriptor as gzFile -- added transparent reading of non-gziped files in gzread. -- fixed bug in gzread (don't read crc as data) -- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose). -- don't allocate big arrays in the stack (for MSDOS) -- fix some MSDOS compilation problems - -Changes in 0.5: -- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but - not yet Z_FULL_FLUSH. -- support decompression but only in a single step (forced Z_FINISH) -- added opaque object for zalloc and zfree. -- added deflateReset and inflateReset -- added a variable zlib_version for consistency checking. -- renamed the 'filter' parameter of deflateInit2 as 'strategy'. - Added Z_FILTERED and Z_HUFFMAN_ONLY constants. - -Changes in 0.4: -- avoid "zip" everywhere, use zlib instead of ziplib. -- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush - if compression method == 8. -- added adler32 and crc32 -- renamed deflateOptions as deflateInit2, call one or the other but not both -- added the method parameter for deflateInit2. -- added inflateInit2 -- simplied considerably deflateInit and inflateInit by not supporting - user-provided history buffer. This is supported only in deflateInit2 - and inflateInit2. - -Changes in 0.3: -- prefix all macro names with Z_ -- use Z_FINISH instead of deflateEnd to finish compression. -- added Z_HUFFMAN_ONLY -- added gzerror() diff --git a/zlib/FAQ b/zlib/FAQ deleted file mode 100755 index 1a22750..0000000 --- a/zlib/FAQ +++ /dev/null @@ -1,366 +0,0 @@ - - Frequently Asked Questions about zlib - - -If your question is not there, please check the zlib home page -http://zlib.net/ which may have more recent information. -The lastest zlib FAQ is at http://zlib.net/zlib_faq.html - - - 1. Is zlib Y2K-compliant? - - Yes. zlib doesn't handle dates. - - 2. Where can I get a Windows DLL version? - - The zlib sources can be compiled without change to produce a DLL. See the - file win32/DLL_FAQ.txt in the zlib distribution. Pointers to the - precompiled DLL are found in the zlib web site at http://zlib.net/ . - - 3. Where can I get a Visual Basic interface to zlib? - - See - * http://marknelson.us/1997/01/01/zlib-engine/ - * win32/DLL_FAQ.txt in the zlib distribution - - 4. compress() returns Z_BUF_ERROR. - - Make sure that before the call of compress(), the length of the compressed - buffer is equal to the available size of the compressed buffer and not - zero. For Visual Basic, check that this parameter is passed by reference - ("as any"), not by value ("as long"). - - 5. deflate() or inflate() returns Z_BUF_ERROR. - - Before making the call, make sure that avail_in and avail_out are not zero. - When setting the parameter flush equal to Z_FINISH, also make sure that - avail_out is big enough to allow processing all pending input. Note that a - Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be - made with more input or output space. A Z_BUF_ERROR may in fact be - unavoidable depending on how the functions are used, since it is not - possible to tell whether or not there is more output pending when - strm.avail_out returns with zero. See http://zlib.net/zlib_how.html for a - heavily annotated example. - - 6. Where's the zlib documentation (man pages, etc.)? - - It's in zlib.h . Examples of zlib usage are in the files example.c and - minigzip.c, with more in examples/ . - - 7. Why don't you use GNU autoconf or libtool or ...? - - Because we would like to keep zlib as a very small and simple package. - zlib is rather portable and doesn't need much configuration. - - 8. I found a bug in zlib. - - Most of the time, such problems are due to an incorrect usage of zlib. - Please try to reproduce the problem with a small program and send the - corresponding source to us at zlib@gzip.org . Do not send multi-megabyte - data files without prior agreement. - - 9. Why do I get "undefined reference to gzputc"? - - If "make test" produces something like - - example.o(.text+0x154): undefined reference to `gzputc' - - check that you don't have old files libz.* in /usr/lib, /usr/local/lib or - /usr/X11R6/lib. Remove any old versions, then do "make install". - -10. I need a Delphi interface to zlib. - - See the contrib/delphi directory in the zlib distribution. - -11. Can zlib handle .zip archives? - - Not by itself, no. See the directory contrib/minizip in the zlib - distribution. - -12. Can zlib handle .Z files? - - No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt - the code of uncompress on your own. - -13. How can I make a Unix shared library? - - make clean - ./configure -s - make - -14. How do I install a shared zlib library on Unix? - - After the above, then: - - make install - - However, many flavors of Unix come with a shared zlib already installed. - Before going to the trouble of compiling a shared version of zlib and - trying to install it, you may want to check if it's already there! If you - can #include , it's there. The -lz option will probably link to - it. You can check the version at the top of zlib.h or with the - ZLIB_VERSION symbol defined in zlib.h . - -15. I have a question about OttoPDF. - - We are not the authors of OttoPDF. The real author is on the OttoPDF web - site: Joel Hainley, jhainley@myndkryme.com. - -16. Can zlib decode Flate data in an Adobe PDF file? - - Yes. See http://www.pdflib.com/ . To modify PDF forms, see - http://sourceforge.net/projects/acroformtool/ . - -17. Why am I getting this "register_frame_info not found" error on Solaris? - - After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib - generates an error such as: - - ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so: - symbol __register_frame_info: referenced symbol not found - - The symbol __register_frame_info is not part of zlib, it is generated by - the C compiler (cc or gcc). You must recompile applications using zlib - which have this problem. This problem is specific to Solaris. See - http://www.sunfreeware.com for Solaris versions of zlib and applications - using zlib. - -18. Why does gzip give an error on a file I make with compress/deflate? - - The compress and deflate functions produce data in the zlib format, which - is different and incompatible with the gzip format. The gz* functions in - zlib on the other hand use the gzip format. Both the zlib and gzip formats - use the same compressed data format internally, but have different headers - and trailers around the compressed data. - -19. Ok, so why are there two different formats? - - The gzip format was designed to retain the directory information about a - single file, such as the name and last modification date. The zlib format - on the other hand was designed for in-memory and communication channel - applications, and has a much more compact header and trailer and uses a - faster integrity check than gzip. - -20. Well that's nice, but how do I make a gzip file in memory? - - You can request that deflate write the gzip format instead of the zlib - format using deflateInit2(). You can also request that inflate decode the - gzip format using inflateInit2(). Read zlib.h for more details. - -21. Is zlib thread-safe? - - Yes. However any library routines that zlib uses and any application- - provided memory allocation routines must also be thread-safe. zlib's gz* - functions use stdio library routines, and most of zlib's functions use the - library memory allocation routines by default. zlib's *Init* functions - allow for the application to provide custom memory allocation routines. - - Of course, you should only operate on any given zlib or gzip stream from a - single thread at a time. - -22. Can I use zlib in my commercial application? - - Yes. Please read the license in zlib.h. - -23. Is zlib under the GNU license? - - No. Please read the license in zlib.h. - -24. The license says that altered source versions must be "plainly marked". So - what exactly do I need to do to meet that requirement? - - You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In - particular, the final version number needs to be changed to "f", and an - identification string should be appended to ZLIB_VERSION. Version numbers - x.x.x.f are reserved for modifications to zlib by others than the zlib - maintainers. For example, if the version of the base zlib you are altering - is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and - ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also - update the version strings in deflate.c and inftrees.c. - - For altered source distributions, you should also note the origin and - nature of the changes in zlib.h, as well as in ChangeLog and README, along - with the dates of the alterations. The origin should include at least your - name (or your company's name), and an email address to contact for help or - issues with the library. - - Note that distributing a compiled zlib library along with zlib.h and - zconf.h is also a source distribution, and so you should change - ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes - in zlib.h as you would for a full source distribution. - -25. Will zlib work on a big-endian or little-endian architecture, and can I - exchange compressed data between them? - - Yes and yes. - -26. Will zlib work on a 64-bit machine? - - Yes. It has been tested on 64-bit machines, and has no dependence on any - data types being limited to 32-bits in length. If you have any - difficulties, please provide a complete problem report to zlib@gzip.org - -27. Will zlib decompress data from the PKWare Data Compression Library? - - No. The PKWare DCL uses a completely different compressed data format than - does PKZIP and zlib. However, you can look in zlib's contrib/blast - directory for a possible solution to your problem. - -28. Can I access data randomly in a compressed stream? - - No, not without some preparation. If when compressing you periodically use - Z_FULL_FLUSH, carefully write all the pending data at those points, and - keep an index of those locations, then you can start decompression at those - points. You have to be careful to not use Z_FULL_FLUSH too often, since it - can significantly degrade compression. Alternatively, you can scan a - deflate stream once to generate an index, and then use that index for - random access. See examples/zran.c . - -29. Does zlib work on MVS, OS/390, CICS, etc.? - - It has in the past, but we have not heard of any recent evidence. There - were working ports of zlib 1.1.4 to MVS, but those links no longer work. - If you know of recent, successful applications of zlib on these operating - systems, please let us know. Thanks. - -30. Is there some simpler, easier to read version of inflate I can look at to - understand the deflate format? - - First off, you should read RFC 1951. Second, yes. Look in zlib's - contrib/puff directory. - -31. Does zlib infringe on any patents? - - As far as we know, no. In fact, that was originally the whole point behind - zlib. Look here for some more information: - - http://www.gzip.org/#faq11 - -32. Can zlib work with greater than 4 GB of data? - - Yes. inflate() and deflate() will process any amount of data correctly. - Each call of inflate() or deflate() is limited to input and output chunks - of the maximum value that can be stored in the compiler's "unsigned int" - type, but there is no limit to the number of chunks. Note however that the - strm.total_in and strm_total_out counters may be limited to 4 GB. These - counters are provided as a convenience and are not used internally by - inflate() or deflate(). The application can easily set up its own counters - updated after each call of inflate() or deflate() to count beyond 4 GB. - compress() and uncompress() may be limited to 4 GB, since they operate in a - single call. gzseek() and gztell() may be limited to 4 GB depending on how - zlib is compiled. See the zlibCompileFlags() function in zlib.h. - - The word "may" appears several times above since there is a 4 GB limit only - if the compiler's "long" type is 32 bits. If the compiler's "long" type is - 64 bits, then the limit is 16 exabytes. - -33. Does zlib have any security vulnerabilities? - - The only one that we are aware of is potentially in gzprintf(). If zlib is - compiled to use sprintf() or vsprintf(), then there is no protection - against a buffer overflow of an 8K string space (or other value as set by - gzbuffer()), other than the caller of gzprintf() assuring that the output - will not exceed 8K. On the other hand, if zlib is compiled to use - snprintf() or vsnprintf(), which should normally be the case, then there is - no vulnerability. The ./configure script will display warnings if an - insecure variation of sprintf() will be used by gzprintf(). Also the - zlibCompileFlags() function will return information on what variant of - sprintf() is used by gzprintf(). - - If you don't have snprintf() or vsnprintf() and would like one, you can - find a portable implementation here: - - http://www.ijs.si/software/snprintf/ - - Note that you should be using the most recent version of zlib. Versions - 1.1.3 and before were subject to a double-free vulnerability, and versions - 1.2.1 and 1.2.2 were subject to an access exception when decompressing - invalid compressed data. - -34. Is there a Java version of zlib? - - Probably what you want is to use zlib in Java. zlib is already included - as part of the Java SDK in the java.util.zip package. If you really want - a version of zlib written in the Java language, look on the zlib home - page for links: http://zlib.net/ . - -35. I get this or that compiler or source-code scanner warning when I crank it - up to maximally-pedantic. Can't you guys write proper code? - - Many years ago, we gave up attempting to avoid warnings on every compiler - in the universe. It just got to be a waste of time, and some compilers - were downright silly as well as contradicted each other. So now, we simply - make sure that the code always works. - -36. Valgrind (or some similar memory access checker) says that deflate is - performing a conditional jump that depends on an uninitialized value. - Isn't that a bug? - - No. That is intentional for performance reasons, and the output of deflate - is not affected. This only started showing up recently since zlib 1.2.x - uses malloc() by default for allocations, whereas earlier versions used - calloc(), which zeros out the allocated memory. Even though the code was - correct, versions 1.2.4 and later was changed to not stimulate these - checkers. - -37. Will zlib read the (insert any ancient or arcane format here) compressed - data format? - - Probably not. Look in the comp.compression FAQ for pointers to various - formats and associated software. - -38. How can I encrypt/decrypt zip files with zlib? - - zlib doesn't support encryption. The original PKZIP encryption is very - weak and can be broken with freely available programs. To get strong - encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib - compression. For PKZIP compatible "encryption", look at - http://www.info-zip.org/ - -39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings? - - "gzip" is the gzip format, and "deflate" is the zlib format. They should - probably have called the second one "zlib" instead to avoid confusion with - the raw deflate compressed data format. While the HTTP 1.1 RFC 2616 - correctly points to the zlib specification in RFC 1950 for the "deflate" - transfer encoding, there have been reports of servers and browsers that - incorrectly produce or expect raw deflate data per the deflate - specficiation in RFC 1951, most notably Microsoft. So even though the - "deflate" transfer encoding using the zlib format would be the more - efficient approach (and in fact exactly what the zlib format was designed - for), using the "gzip" transfer encoding is probably more reliable due to - an unfortunate choice of name on the part of the HTTP 1.1 authors. - - Bottom line: use the gzip format for HTTP 1.1 encoding. - -40. Does zlib support the new "Deflate64" format introduced by PKWare? - - No. PKWare has apparently decided to keep that format proprietary, since - they have not documented it as they have previous compression formats. In - any case, the compression improvements are so modest compared to other more - modern approaches, that it's not worth the effort to implement. - -41. I'm having a problem with the zip functions in zlib, can you help? - - There are no zip functions in zlib. You are probably using minizip by - Giles Vollant, which is found in the contrib directory of zlib. It is not - part of zlib. In fact none of the stuff in contrib is part of zlib. The - files in there are not supported by the zlib authors. You need to contact - the authors of the respective contribution for help. - -42. The match.asm code in contrib is under the GNU General Public License. - Since it's part of zlib, doesn't that mean that all of zlib falls under the - GNU GPL? - - No. The files in contrib are not part of zlib. They were contributed by - other authors and are provided as a convenience to the user within the zlib - distribution. Each item in contrib has its own license. - -43. Is zlib subject to export controls? What is its ECCN? - - zlib is not subject to export controls, and so is classified as EAR99. - -44. Can you please sign these lengthy legal documents and fax them back to us - so that we can use your software in our product? - - No. Go away. Shoo. diff --git a/zlib/INDEX b/zlib/INDEX deleted file mode 100755 index f6c51ca..0000000 --- a/zlib/INDEX +++ /dev/null @@ -1,65 +0,0 @@ -CMakeLists.txt cmake build file -ChangeLog history of changes -FAQ Frequently Asked Questions about zlib -INDEX this file -Makefile dummy Makefile that tells you to ./configure -Makefile.in template for Unix Makefile -README guess what -configure configure script for Unix -make_vms.com makefile for VMS -treebuild.xml XML description of source file dependencies -zconf.h.cmakein zconf.h template for cmake -zconf.h.in zconf.h template for configure -zlib.3 Man page for zlib -zlib.3.pdf Man page in PDF format -zlib.map Linux symbol information -zlib.pc.in Template for pkg-config descriptor -zlib2ansi perl script to convert source files for C++ compilation - -amiga/ makefiles for Amiga SAS C -doc/ documentation for formats and algorithms -msdos/ makefiles for MSDOS -nintendods/ makefile for Nintendo DS -old/ makefiles for various architectures and zlib documentation - files that have not yet been updated for zlib 1.2.x -qnx/ makefiles for QNX -watcom/ makefiles for OpenWatcom -win32/ makefiles for Windows - - zlib public header files (required for library use): -zconf.h -zlib.h - - private source files used to build the zlib library: -adler32.c -compress.c -crc32.c -crc32.h -deflate.c -deflate.h -gzclose.c -gzguts.h -gzlib.c -gzread.c -gzwrite.c -infback.c -inffast.c -inffast.h -inffixed.h -inflate.c -inflate.h -inftrees.c -inftrees.h -trees.c -trees.h -uncompr.c -zutil.c -zutil.h - - source files for sample programs: -example.c -minigzip.c -See examples/README.examples for more - - unsupported contribution by third parties -See contrib/README.contrib diff --git a/zlib/Jamfile b/zlib/Jamfile deleted file mode 100755 index 93b52b7..0000000 --- a/zlib/Jamfile +++ /dev/null @@ -1,30 +0,0 @@ - -#PREF_CCFLAGS = $(CCOPTFLAG) ; # Turn optimisation on -PREF_CCFLAGS = $(CCDEBUGFLAG) ; # Debugging flags -PREF_LINKFLAGS = $(LINKDEBUGFLAG) ; - -Libraries = libz ; -Executables = ; -Headers = zlib.h ; - -# zlib library -LIBSRCS = - adler32.c - compress.c - zcrc32.c - deflate.c - gzclose.c - gzlib.c - gzread.c - gzwrite.c - infback.c - inffast.c - inflate.c - inftrees.c - trees.c - uncompr.c - zutil.c - ; - -Library libz : $(LIBSRCS) ; - diff --git a/zlib/Makefile b/zlib/Makefile deleted file mode 100755 index 6bba86c..0000000 --- a/zlib/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -all: - -@echo "Please use ./configure first. Thank you." - -distclean: - make -f Makefile.in distclean diff --git a/zlib/Makefile.in b/zlib/Makefile.in deleted file mode 100755 index 5b15bd0..0000000 --- a/zlib/Makefile.in +++ /dev/null @@ -1,257 +0,0 @@ -# Makefile for zlib -# Copyright (C) 1995-2010 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile and test, type: -# ./configure; make test -# Normally configure builds both a static and a shared library. -# If you want to build just a static library, use: ./configure --static - -# To use the asm code, type: -# cp contrib/asm?86/match.S ./match.S -# make LOC=-DASMV OBJA=match.o - -# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type: -# make install -# To install in $HOME instead of /usr/local, use: -# make install prefix=$HOME - -CC=cc - -CFLAGS=-O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-g -DDEBUG -#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ -# -Wstrict-prototypes -Wmissing-prototypes - -SFLAGS=-O -LDFLAGS= -TEST_LDFLAGS=-L. libz.a -LDSHARED=$(CC) -CPP=$(CC) -E - -STATICLIB=libz.a -SHAREDLIB=libz.so -SHAREDLIBV=libz.so.1.2.5 -SHAREDLIBM=libz.so.1 -LIBS=$(STATICLIB) $(SHAREDLIBV) - -AR=ar rc -RANLIB=ranlib -LDCONFIG=ldconfig -LDSHAREDLIBC=-lc -TAR=tar -SHELL=/bin/sh -EXE= - -prefix = /usr/local -exec_prefix = ${prefix} -libdir = ${exec_prefix}/lib -sharedlibdir = ${libdir} -includedir = ${prefix}/include -mandir = ${prefix}/share/man -man3dir = ${mandir}/man3 -pkgconfigdir = ${libdir}/pkgconfig - -OBJC = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \ - gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o - -PIC_OBJC = adler32.lo compress.lo crc32.lo deflate.lo gzclose.lo gzlib.lo gzread.lo \ - gzwrite.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo uncompr.lo zutil.lo - -# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo -OBJA = -PIC_OBJA = - -OBJS = $(OBJC) $(OBJA) - -PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA) - -all: static shared - -static: example$(EXE) minigzip$(EXE) - -shared: examplesh$(EXE) minigzipsh$(EXE) - -all64: example64$(EXE) minigzip64$(EXE) - -check: test - -test: all teststatic testshared - -teststatic: static - @if echo hello world | ./minigzip | ./minigzip -d && ./example; then \ - echo ' *** zlib test OK ***'; \ - else \ - echo ' *** zlib test FAILED ***'; false; \ - fi - -@rm -f foo.gz - -testshared: shared - @LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \ - LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \ - DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \ - SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \ - if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh; then \ - echo ' *** zlib shared test OK ***'; \ - else \ - echo ' *** zlib shared test FAILED ***'; false; \ - fi - -@rm -f foo.gz - -test64: all64 - @if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64; then \ - echo ' *** zlib 64-bit test OK ***'; \ - else \ - echo ' *** zlib 64-bit test FAILED ***'; false; \ - fi - -@rm -f foo.gz - -libz.a: $(OBJS) - $(AR) $@ $(OBJS) - -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 - -match.o: match.S - $(CPP) match.S > _match.s - $(CC) -c _match.s - mv _match.o match.o - rm -f _match.s - -match.lo: match.S - $(CPP) match.S > _match.s - $(CC) -c -fPIC _match.s - mv _match.o match.lo - rm -f _match.s - -example64.o: example.c zlib.h zconf.h - $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ example.c - -minigzip64.o: minigzip.c zlib.h zconf.h - $(CC) $(CFLAGS) -D_FILE_OFFSET_BITS=64 -c -o $@ minigzip.c - -.SUFFIXES: .lo - -.c.lo: - -@mkdir objs 2>/dev/null || test -d objs - $(CC) $(SFLAGS) -DPIC -c -o objs/$*.o $< - -@mv objs/$*.o $@ - -$(SHAREDLIBV): $(PIC_OBJS) - $(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS) - rm -f $(SHAREDLIB) $(SHAREDLIBM) - ln -s $@ $(SHAREDLIB) - ln -s $@ $(SHAREDLIBM) - -@rmdir objs - -example$(EXE): example.o $(STATICLIB) - $(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS) - -minigzip$(EXE): minigzip.o $(STATICLIB) - $(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS) - -examplesh$(EXE): example.o $(SHAREDLIBV) - $(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV) - -minigzipsh$(EXE): minigzip.o $(SHAREDLIBV) - $(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV) - -example64$(EXE): example64.o $(STATICLIB) - $(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS) - -minigzip64$(EXE): minigzip64.o $(STATICLIB) - $(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS) - -install-libs: $(LIBS) - -@if [ ! -d $(DESTDIR)$(exec_prefix) ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi - -@if [ ! -d $(DESTDIR)$(libdir) ]; then mkdir -p $(DESTDIR)$(libdir); fi - -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi - -@if [ ! -d $(DESTDIR)$(man3dir) ]; then mkdir -p $(DESTDIR)$(man3dir); fi - -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi - cp $(STATICLIB) $(DESTDIR)$(libdir) - cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir) - cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB) - -@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1 - -@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ - chmod 755 $(SHAREDLIBV); \ - rm -f $(SHAREDLIB) $(SHAREDLIBM); \ - ln -s $(SHAREDLIBV) $(SHAREDLIB); \ - ln -s $(SHAREDLIBV) $(SHAREDLIBM); \ - ($(LDCONFIG) || true) >/dev/null 2>&1; \ - fi - cp zlib.3 $(DESTDIR)$(man3dir) - chmod 644 $(DESTDIR)$(man3dir)/zlib.3 - cp zlib.pc $(DESTDIR)$(pkgconfigdir) - chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc -# The ranlib in install is needed on NeXTSTEP which checks file times -# ldconfig is for Linux - -install: install-libs - -@if [ ! -d $(DESTDIR)$(includedir) ]; then mkdir -p $(DESTDIR)$(includedir); fi - cp zlib.h zconf.h $(DESTDIR)$(includedir) - chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h - -uninstall: - cd $(DESTDIR)$(includedir); rm -f zlib.h zconf.h - cd $(DESTDIR)$(libdir); rm -f libz.a; \ - if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \ - rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \ - fi - cd $(DESTDIR)$(man3dir); rm -f zlib.3 - cd $(DESTDIR)$(pkgconfigdir); rm -f zlib.pc - -docs: zlib.3.pdf - -zlib.3.pdf: zlib.3 - groff -mandoc -f H -T ps zlib.3 | ps2pdf - zlib.3.pdf - -zconf.h.in: zconf.h.cmakein - sed "/^#cmakedefine/D" < zconf.h.cmakein > zconf.h.in - touch -r zconf.h.cmakein zconf.h.in - -zconf: zconf.h.in - cp -p zconf.h.in zconf.h - -mostlyclean: clean -clean: - rm -f *.o *.lo *~ \ - example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \ - example64$(EXE) minigzip64$(EXE) \ - libz.* foo.gz so_locations \ - _match.s maketree contrib/infback9/*.o - rm -rf objs - -maintainer-clean: distclean -distclean: clean zconf docs - rm -f Makefile zlib.pc - -@rm -f .DS_Store - -@printf 'all:\n\t-@echo "Please use ./configure first. Thank you."\n' > Makefile - -@printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile - -@touch -r Makefile.in Makefile - -tags: - etags *.[ch] - -depend: - makedepend -- $(CFLAGS) -- *.[ch] - -# DO NOT DELETE THIS LINE -- make depend depends on it. - -adler32.o zutil.o: zutil.h zlib.h zconf.h -gzclose.o gzlib.o gzread.o gzwrite.o: zlib.h zconf.h gzguts.h -compress.o example.o minigzip.o uncompr.o: zlib.h zconf.h -crc32.o: zutil.h zlib.h zconf.h crc32.h -deflate.o: deflate.h zutil.h zlib.h zconf.h -infback.o inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h -inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h -inftrees.o: zutil.h zlib.h zconf.h inftrees.h -trees.o: deflate.h zutil.h zlib.h zconf.h trees.h - -adler32.lo zutil.lo: zutil.h zlib.h zconf.h -gzclose.lo gzlib.lo gzread.lo gzwrite.lo: zlib.h zconf.h gzguts.h -compress.lo example.lo minigzip.lo uncompr.lo: zlib.h zconf.h -crc32.lo: zutil.h zlib.h zconf.h crc32.h -deflate.lo: deflate.h zutil.h zlib.h zconf.h -infback.lo inflate.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h inffixed.h -inffast.lo: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h -inftrees.lo: zutil.h zlib.h zconf.h inftrees.h -trees.lo: deflate.h zutil.h zlib.h zconf.h trees.h diff --git a/zlib/README b/zlib/README deleted file mode 100755 index d4219bf..0000000 --- a/zlib/README +++ /dev/null @@ -1,115 +0,0 @@ -ZLIB DATA COMPRESSION LIBRARY - -zlib 1.2.5 is a general purpose data compression library. All the code is -thread safe. The data format used by the zlib library is described by RFCs -(Request for Comments) 1950 to 1952 in the files -http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) -and rfc1952.txt (gzip format). - -All functions of the compression library are documented in the file zlib.h -(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example -of the library is given in the file example.c which also tests that the library -is working correctly. Another example is given in the file minigzip.c. The -compression library itself is composed of all source files except example.c and -minigzip.c. - -To compile all files and run the test program, follow the instructions given at -the top of Makefile.in. In short "./configure; make test", and if that goes -well, "make install" should work for most flavors of Unix. For Windows, use one -of the special makefiles in win32/ or contrib/vstudio/ . For VMS, use -make_vms.com. - -Questions about zlib should be sent to , or to Gilles Vollant - for the Windows DLL version. The zlib home page is -http://zlib.net/ . Before reporting a problem, please check this site to -verify that you have the latest version of zlib; otherwise get the latest -version and check whether the problem still exists or not. - -PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help. - -Mark Nelson wrote an article about zlib for the Jan. 1997 -issue of Dr. Dobb's Journal; a copy of the article is available at -http://marknelson.us/1997/01/01/zlib-engine/ . - -The changes made in version 1.2.5 are documented in the file ChangeLog. - -Unsupported third party contributions are provided in directory contrib/ . - -zlib is available in Java using the java.util.zip package, documented at -http://java.sun.com/developer/technicalArticles/Programming/compression/ . - -A Perl interface to zlib written by Paul Marquess is available -at CPAN (Comprehensive Perl Archive Network) sites, including -http://search.cpan.org/~pmqs/IO-Compress-Zlib/ . - -A Python interface to zlib written by A.M. Kuchling is -available in Python 1.5 and later versions, see -http://www.python.org/doc/lib/module-zlib.html . - -zlib is built into tcl: http://wiki.tcl.tk/4610 . - -An experimental package to read and write files in .zip format, written on top -of zlib by Gilles Vollant , is available in the -contrib/minizip directory of zlib. - - -Notes for some targets: - -- For Windows DLL versions, please see win32/DLL_FAQ.txt - -- For 64-bit Irix, deflate.c must be compiled without any optimization. With - -O, one libpng test fails. The test works in 32 bit mode (with the -n32 - compiler flag). The compiler bug has been reported to SGI. - -- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works - when compiled with cc. - -- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is - necessary to get gzprintf working correctly. This is done by configure. - -- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with - other compilers. Use "make test" to check your compiler. - -- gzdopen is not supported on RISCOS or BEOS. - -- For PalmOs, see http://palmzlib.sourceforge.net/ - - -Acknowledgments: - - The deflate format used by zlib was defined by Phil Katz. The deflate and - zlib specifications were written by L. Peter Deutsch. Thanks to all the - people who reported problems and suggested various improvements in zlib; they - are too numerous to cite here. - -Copyright notice: - - (C) 1995-2010 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - -If you use the zlib library in a product, we would appreciate *not* receiving -lengthy legal documents to sign. The sources are provided for free but without -warranty of any kind. The library has been entirely written by Jean-loup -Gailly and Mark Adler; it does not include third-party code. - -If you redistribute modified sources, we would appreciate that you include in -the file ChangeLog history information documenting your changes. Please read -the FAQ for more information on the distribution of modified source versions. diff --git a/zlib/adler32.c b/zlib/adler32.c deleted file mode 100755 index 65ad6a5..0000000 --- a/zlib/adler32.c +++ /dev/null @@ -1,169 +0,0 @@ -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2007 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include "zutil.h" - -#define local static - -local uLong adler32_combine_(uLong adler1, uLong adler2, z_off64_t len2); - -#define BASE 65521UL /* largest prime smaller than 65536 */ -#define NMAX 5552 -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#define DO1(buf,i) {adler += (buf)[i]; sum2 += adler;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* use NO_DIVIDE if your processor does not do division in hardware */ -#ifdef NO_DIVIDE -# define MOD(a) \ - do { \ - if (a >= (BASE << 16)) a -= (BASE << 16); \ - if (a >= (BASE << 15)) a -= (BASE << 15); \ - if (a >= (BASE << 14)) a -= (BASE << 14); \ - if (a >= (BASE << 13)) a -= (BASE << 13); \ - if (a >= (BASE << 12)) a -= (BASE << 12); \ - if (a >= (BASE << 11)) a -= (BASE << 11); \ - if (a >= (BASE << 10)) a -= (BASE << 10); \ - if (a >= (BASE << 9)) a -= (BASE << 9); \ - if (a >= (BASE << 8)) a -= (BASE << 8); \ - if (a >= (BASE << 7)) a -= (BASE << 7); \ - if (a >= (BASE << 6)) a -= (BASE << 6); \ - if (a >= (BASE << 5)) a -= (BASE << 5); \ - if (a >= (BASE << 4)) a -= (BASE << 4); \ - if (a >= (BASE << 3)) a -= (BASE << 3); \ - if (a >= (BASE << 2)) a -= (BASE << 2); \ - if (a >= (BASE << 1)) a -= (BASE << 1); \ - if (a >= BASE) a -= BASE; \ - } while (0) -# define MOD4(a) \ - do { \ - if (a >= (BASE << 4)) a -= (BASE << 4); \ - if (a >= (BASE << 3)) a -= (BASE << 3); \ - if (a >= (BASE << 2)) a -= (BASE << 2); \ - if (a >= (BASE << 1)) a -= (BASE << 1); \ - if (a >= BASE) a -= BASE; \ - } while (0) -#else -# define MOD(a) a %= BASE -# define MOD4(a) a %= BASE -#endif - -/* ========================================================================= */ -uLong ZEXPORT adler32(adler, buf, len) - uLong adler; - const Bytef *buf; - uInt len; -{ - unsigned long sum2; - unsigned n; - - /* split Adler-32 into component sums */ - sum2 = (adler >> 16) & 0xffff; - adler &= 0xffff; - - /* in case user likes doing a byte at a time, keep it fast */ - if (len == 1) { - adler += buf[0]; - if (adler >= BASE) - adler -= BASE; - sum2 += adler; - if (sum2 >= BASE) - sum2 -= BASE; - return adler | (sum2 << 16); - } - - /* initial Adler-32 value (deferred check for len == 1 speed) */ - if (buf == Z_NULL) - return 1L; - - /* in case short lengths are provided, keep it somewhat fast */ - if (len < 16) { - while (len--) { - adler += *buf++; - sum2 += adler; - } - if (adler >= BASE) - adler -= BASE; - MOD4(sum2); /* only added so many BASE's */ - return adler | (sum2 << 16); - } - - /* do length NMAX blocks -- requires just one modulo operation */ - while (len >= NMAX) { - len -= NMAX; - n = NMAX / 16; /* NMAX is divisible by 16 */ - do { - DO16(buf); /* 16 sums unrolled */ - buf += 16; - } while (--n); - MOD(adler); - MOD(sum2); - } - - /* do remaining bytes (less than NMAX, still just one modulo) */ - if (len) { /* avoid modulos if none remaining */ - while (len >= 16) { - len -= 16; - DO16(buf); - buf += 16; - } - while (len--) { - adler += *buf++; - sum2 += adler; - } - MOD(adler); - MOD(sum2); - } - - /* return recombined sums */ - return adler | (sum2 << 16); -} - -/* ========================================================================= */ -local uLong adler32_combine_(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off64_t len2; -{ - unsigned long sum1; - unsigned long sum2; - unsigned rem; - - /* the derivation of this formula is left as an exercise for the reader */ - rem = (unsigned)(len2 % BASE); - sum1 = adler1 & 0xffff; - sum2 = rem * sum1; - MOD(sum2); - sum1 += (adler2 & 0xffff) + BASE - 1; - sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; - if (sum1 >= BASE) sum1 -= BASE; - if (sum1 >= BASE) sum1 -= BASE; - if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1); - if (sum2 >= BASE) sum2 -= BASE; - return sum1 | (sum2 << 16); -} - -/* ========================================================================= */ -uLong ZEXPORT adler32_combine(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off_t len2; -{ - return adler32_combine_(adler1, adler2, len2); -} - -uLong ZEXPORT adler32_combine64(adler1, adler2, len2) - uLong adler1; - uLong adler2; - z_off64_t len2; -{ - return adler32_combine_(adler1, adler2, len2); -} diff --git a/zlib/afiles b/zlib/afiles deleted file mode 100644 index 7ce3e39..0000000 --- a/zlib/afiles +++ /dev/null @@ -1,48 +0,0 @@ -Jamfile -afiles -CMakeLists.txt -ChangeLog -FAQ -INDEX -Makefile -Makefile.in -README -adler32.c -compress.c -configure -zcrc32.c -zcrc32.h -deflate.c -deflate.h -example.c -gzclose.c -gzguts.h -gzlib.c -gzread.c -gzwrite.c -infback.c -inffast.c -inffast.h -inffixed.h -inflate.c -inflate.h -inftrees.c -inftrees.h -make_vms.com -minigzip.c -treebuild.xml -trees.c -trees.h -uncompr.c -zconf.h -zconf.h.cmakein -zconf.h.in -zlib.3 -zlib.3.pdf -zlib.h -zlib.map -zlib.pc.in -zlib125.zip -zlib2ansi -zutil.c -zutil.h diff --git a/zlib/compress.c b/zlib/compress.c deleted file mode 100755 index ea4dfbe..0000000 --- a/zlib/compress.c +++ /dev/null @@ -1,80 +0,0 @@ -/* compress.c -- compress a memory buffer - * Copyright (C) 1995-2005 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - stream.opaque = (voidpf)0; - - err = deflateInit(&stream, level); - if (err != Z_OK) return err; - - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd(&stream); - return err; -} - -/* =========================================================================== - */ -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} - -/* =========================================================================== - If the default memLevel or windowBits for deflateInit() is changed, then - this function needs to be updated. - */ -uLong ZEXPORT compressBound (sourceLen) - uLong sourceLen; -{ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + - (sourceLen >> 25) + 13; -} diff --git a/zlib/configure b/zlib/configure deleted file mode 100755 index bd9edd2..0000000 --- a/zlib/configure +++ /dev/null @@ -1,596 +0,0 @@ -#!/bin/sh -# configure script for zlib. -# -# Normally configure builds both a static and a shared library. -# If you want to build just a static library, use: ./configure --static -# -# To impose specific compiler or flags or install directory, use for example: -# prefix=$HOME CC=cc CFLAGS="-O4" ./configure -# or for csh/tcsh users: -# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) - -# Incorrect settings of CC or CFLAGS may prevent creating a shared library. -# If you have problems, try without defining CC and CFLAGS before reporting -# an error. - -if [ -n "${CHOST}" ]; then - uname="$(echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/')" - CROSS_PREFIX="${CHOST}-" -fi - -STATICLIB=libz.a -LDFLAGS="${LDFLAGS} -L. ${STATICLIB}" -VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` -VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` -VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` -VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` -if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? 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Yes." - - cat >$test.c < -#include - -int mytest(const char *fmt, ...) -{ - int n; - char buf[20]; - va_list ap; - - va_start(ap, fmt); - n = vsnprintf(buf, sizeof(buf), fmt, ap); - va_end(ap); - return n; -} - -int main() -{ - return (mytest("Hello%d\n", 1)); -} -EOF - - if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then - echo "Checking for return value of vsnprintf()... Yes." - else - CFLAGS="$CFLAGS -DHAS_vsnprintf_void" - SFLAGS="$SFLAGS -DHAS_vsnprintf_void" - echo "Checking for return value of vsnprintf()... No." - echo " WARNING: apparently vsnprintf() does not return a value. zlib" - echo " can build but will be open to possible string-format security" - echo " vulnerabilities." - fi - else - CFLAGS="$CFLAGS -DNO_vsnprintf" - SFLAGS="$SFLAGS -DNO_vsnprintf" - echo "Checking for vsnprintf() in stdio.h... No." - echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" - echo " can build but will be open to possible buffer-overflow security" - echo " vulnerabilities." - - cat >$test.c < -#include - -int mytest(const char *fmt, ...) -{ - int n; - char buf[20]; - va_list ap; - - va_start(ap, fmt); - n = vsprintf(buf, fmt, ap); - va_end(ap); - return n; -} - -int main() -{ - return (mytest("Hello%d\n", 1)); -} -EOF - - if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then - echo "Checking for return value of vsprintf()... Yes." - else - CFLAGS="$CFLAGS -DHAS_vsprintf_void" - SFLAGS="$SFLAGS -DHAS_vsprintf_void" - echo "Checking for return value of vsprintf()... No." - echo " WARNING: apparently vsprintf() does not return a value. zlib" - echo " can build but will be open to possible string-format security" - echo " vulnerabilities." - fi - fi -else - echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." - - cat >$test.c < - -int mytest() -{ - char buf[20]; - - snprintf(buf, sizeof(buf), "%s", "foo"); - return 0; -} - -int main() -{ - return (mytest()); -} -EOF - - if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then - echo "Checking for snprintf() in stdio.h... Yes." - - cat >$test.c < - -int mytest() -{ - char buf[20]; - - return snprintf(buf, sizeof(buf), "%s", "foo"); -} - -int main() -{ - return (mytest()); -} -EOF - - if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then - echo "Checking for return value of snprintf()... Yes." - else - CFLAGS="$CFLAGS -DHAS_snprintf_void" - SFLAGS="$SFLAGS -DHAS_snprintf_void" - echo "Checking for return value of snprintf()... No." - echo " WARNING: apparently snprintf() does not return a value. zlib" - echo " can build but will be open to possible string-format security" - echo " vulnerabilities." - fi - else - CFLAGS="$CFLAGS -DNO_snprintf" - SFLAGS="$SFLAGS -DNO_snprintf" - echo "Checking for snprintf() in stdio.h... No." - echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" - echo " can build but will be open to possible buffer-overflow security" - echo " vulnerabilities." - - cat >$test.c < - -int mytest() -{ - char buf[20]; - - return sprintf(buf, "%s", "foo"); -} - -int main() -{ - return (mytest()); -} -EOF - - if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then - echo "Checking for return value of sprintf()... Yes." - else - CFLAGS="$CFLAGS -DHAS_sprintf_void" - SFLAGS="$SFLAGS -DHAS_sprintf_void" - echo "Checking for return value of sprintf()... No." - echo " WARNING: apparently sprintf() does not return a value. zlib" - echo " can build but will be open to possible string-format security" - echo " vulnerabilities." - fi - fi -fi - -if test "$gcc" -eq 1; then - cat > $test.c <= 33) -# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) -#else -# define ZLIB_INTERNAL -#endif -int ZLIB_INTERNAL foo; -int main() -{ - return 0; -} -EOF - if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then - echo "Checking for attribute(visibility) support... Yes." - else - CFLAGS="$CFLAGS -DNO_VIZ" - SFLAGS="$SFLAGS -DNO_VIZ" - echo "Checking for attribute(visibility) support... No." - fi -fi - -CPP=${CPP-"$CC -E"} -case $CFLAGS in - *ASMV*) - if test "`$NM $test.o | grep _hello`" = ""; then - CPP="$CPP -DNO_UNDERLINE" - echo Checking for underline in external names... No. - else - echo Checking for underline in external names... Yes. - fi ;; -esac - -rm -f $test.[co] $test $test$shared_ext - -# udpate Makefile -sed < Makefile.in " -/^CC *=/s#=.*#=$CC# -/^CFLAGS *=/s#=.*#=$CFLAGS# -/^SFLAGS *=/s#=.*#=$SFLAGS# -/^LDFLAGS *=/s#=.*#=$LDFLAGS# -/^LDSHARED *=/s#=.*#=$LDSHARED# -/^CPP *=/s#=.*#=$CPP# -/^STATICLIB *=/s#=.*#=$STATICLIB# -/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# -/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# -/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# -/^AR *=/s#=.*#=$AR_RC# -/^RANLIB *=/s#=.*#=$RANLIB# -/^LDCONFIG *=/s#=.*#=$LDCONFIG# -/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# -/^EXE *=/s#=.*#=$EXE# -/^prefix *=/s#=.*#=$prefix# -/^exec_prefix *=/s#=.*#=$exec_prefix# -/^libdir *=/s#=.*#=$libdir# -/^sharedlibdir *=/s#=.*#=$sharedlibdir# -/^includedir *=/s#=.*#=$includedir# -/^mandir *=/s#=.*#=$mandir# -/^all: */s#:.*#: $ALL# -/^test: */s#:.*#: $TEST# -" > Makefile - -sed < zlib.pc.in " -/^CC *=/s#=.*#=$CC# -/^CFLAGS *=/s#=.*#=$CFLAGS# -/^CPP *=/s#=.*#=$CPP# -/^LDSHARED *=/s#=.*#=$LDSHARED# -/^STATICLIB *=/s#=.*#=$STATICLIB# -/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# -/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# -/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# -/^AR *=/s#=.*#=$AR_RC# -/^RANLIB *=/s#=.*#=$RANLIB# -/^EXE *=/s#=.*#=$EXE# -/^prefix *=/s#=.*#=$prefix# -/^exec_prefix *=/s#=.*#=$exec_prefix# -/^libdir *=/s#=.*#=$libdir# -/^sharedlibdir *=/s#=.*#=$sharedlibdir# -/^includedir *=/s#=.*#=$includedir# -/^mandir *=/s#=.*#=$mandir# -/^LDFLAGS *=/s#=.*#=$LDFLAGS# -" | sed -e " -s/\@VERSION\@/$VER/g; -" > zlib.pc diff --git a/zlib/deflate.c b/zlib/deflate.c deleted file mode 100755 index 5c4022f..0000000 --- a/zlib/deflate.c +++ /dev/null @@ -1,1834 +0,0 @@ -/* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process depends on being able to identify portions - * of the input text which are identical to earlier input (within a - * sliding window trailing behind the input currently being processed). - * - * The most straightforward technique turns out to be the fastest for - * most input files: try all possible matches and select the longest. - * The key feature of this algorithm is that insertions into the string - * dictionary are very simple and thus fast, and deletions are avoided - * completely. Insertions are performed at each input character, whereas - * string matches are performed only when the previous match ends. So it - * is preferable to spend more time in matches to allow very fast string - * insertions and avoid deletions. The matching algorithm for small - * strings is inspired from that of Rabin & Karp. A brute force approach - * is used to find longer strings when a small match has been found. - * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze - * (by Leonid Broukhis). - * A previous version of this file used a more sophisticated algorithm - * (by Fiala and Greene) which is guaranteed to run in linear amortized - * time, but has a larger average cost, uses more memory and is patented. - * However the F&G algorithm may be faster for some highly redundant - * files if the parameter max_chain_length (described below) is too large. - * - * ACKNOWLEDGEMENTS - * - * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and - * I found it in 'freeze' written by Leonid Broukhis. - * Thanks to many people for bug reports and testing. - * - * REFERENCES - * - * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". - * Available in http://www.ietf.org/rfc/rfc1951.txt - * - * A description of the Rabin and Karp algorithm is given in the book - * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. - * - * Fiala,E.R., and Greene,D.H. - * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 - * - */ - -/* @(#) $Id$ */ - -#include "deflate.h" - -const char deflate_copyright[] = - " deflate 1.2.5 Copyright 1995-2010 Jean-loup Gailly and Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* =========================================================================== - * Function prototypes. - */ -typedef enum { - need_more, /* block not completed, need more input or more output */ - block_done, /* block flush performed */ - finish_started, /* finish started, need only more output at next deflate */ - finish_done /* finish done, accept no more input or output */ -} block_state; - -typedef block_state (*compress_func) OF((deflate_state *s, int flush)); -/* Compression function. Returns the block state after the call. */ - -local void fill_window OF((deflate_state *s)); -local block_state deflate_stored OF((deflate_state *s, int flush)); -local block_state deflate_fast OF((deflate_state *s, int flush)); -#ifndef FASTEST -local block_state deflate_slow OF((deflate_state *s, int flush)); -#endif -local block_state deflate_rle OF((deflate_state *s, int flush)); -local block_state deflate_huff OF((deflate_state *s, int flush)); -local void lm_init OF((deflate_state *s)); -local void putShortMSB OF((deflate_state *s, uInt b)); -local void flush_pending OF((z_streamp strm)); -local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); -#ifdef ASMV - void match_init OF((void)); /* asm code initialization */ - uInt longest_match OF((deflate_state *s, IPos cur_match)); -#else -local uInt longest_match OF((deflate_state *s, IPos cur_match)); -#endif - -#ifdef DEBUG -local void check_match OF((deflate_state *s, IPos start, IPos match, - int length)); -#endif - -/* =========================================================================== - * Local data - */ - -#define NIL 0 -/* Tail of hash chains */ - -#ifndef TOO_FAR -# define TOO_FAR 4096 -#endif -/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ - -/* Values for max_lazy_match, good_match and max_chain_length, depending on - * the desired pack level (0..9). The values given below have been tuned to - * exclude worst case performance for pathological files. Better values may be - * found for specific files. - */ -typedef struct config_s { - ush good_length; /* reduce lazy search above this match length */ - ush max_lazy; /* do not perform lazy search above this match length */ - ush nice_length; /* quit search above this match length */ - ush max_chain; - compress_func func; -} config; - -#ifdef FASTEST -local const config configuration_table[2] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* max speed, no lazy matches */ -#else -local const config configuration_table[10] = { -/* good lazy nice chain */ -/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}, /* max speed, no lazy matches */ -/* 2 */ {4, 5, 16, 8, deflate_fast}, -/* 3 */ {4, 6, 32, 32, deflate_fast}, - -/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ -/* 5 */ {8, 16, 32, 32, deflate_slow}, -/* 6 */ {8, 16, 128, 128, deflate_slow}, -/* 7 */ {8, 32, 128, 256, deflate_slow}, -/* 8 */ {32, 128, 258, 1024, deflate_slow}, -/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */ -#endif - -/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 - * For deflate_fast() (levels <= 3) good is ignored and lazy has a different - * meaning. - */ - -#define EQUAL 0 -/* result of memcmp for equal strings */ - -#ifndef NO_DUMMY_DECL -struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ -#endif - -/* =========================================================================== - * Update a hash value with the given input byte - * IN assertion: all calls to to UPDATE_HASH are made with consecutive - * input characters, so that a running hash key can be computed from the - * previous key instead of complete recalculation each time. - */ -#define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) - - -/* =========================================================================== - * Insert string str in the dictionary and set match_head to the previous head - * of the hash chain (the most recent string with same hash key). Return - * the previous length of the hash chain. - * If this file is compiled with -DFASTEST, the compression level is forced - * to 1, and no hash chains are maintained. - * IN assertion: all calls to to INSERT_STRING are made with consecutive - * input characters and the first MIN_MATCH bytes of str are valid - * (except for the last MIN_MATCH-1 bytes of the input file). - */ -#ifdef FASTEST -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#else -#define INSERT_STRING(s, str, match_head) \ - (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ - s->head[s->ins_h] = (Pos)(str)) -#endif - -/* =========================================================================== - * Initialize the hash table (avoiding 64K overflow for 16 bit systems). - * prev[] will be initialized on the fly. - */ -#define CLEAR_HASH(s) \ - s->head[s->hash_size-1] = NIL; \ - zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); - -/* ========================================================================= */ -int ZEXPORT deflateInit_(strm, level, version, stream_size) - z_streamp strm; - int level; - const char *version; - int stream_size; -{ - return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, - Z_DEFAULT_STRATEGY, version, stream_size); - /* To do: ignore strm->next_in if we use it as window */ -} - -/* ========================================================================= */ -int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) - z_streamp strm; - int level; - int method; - int windowBits; - int memLevel; - int strategy; - const char *version; - int stream_size; -{ - deflate_state *s; - int wrap = 1; - static const char my_version[] = ZLIB_VERSION; - - ushf *overlay; - /* We overlay pending_buf and d_buf+l_buf. This works since the average - * output size for (length,distance) codes is <= 24 bits. - */ - - if (version == Z_NULL || version[0] != my_version[0] || - stream_size != sizeof(z_stream)) { - return Z_VERSION_ERROR; - } - if (strm == Z_NULL) return Z_STREAM_ERROR; - - strm->msg = Z_NULL; - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - - if (windowBits < 0) { /* suppress zlib wrapper */ - wrap = 0; - windowBits = -windowBits; - } -#ifdef GZIP - else if (windowBits > 15) { - wrap = 2; /* write gzip wrapper instead */ - windowBits -= 16; - } -#endif - if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || - windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ - s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); - if (s == Z_NULL) return Z_MEM_ERROR; - strm->state = (struct internal_state FAR *)s; - s->strm = strm; - - s->wrap = wrap; - s->gzhead = Z_NULL; - s->w_bits = windowBits; - s->w_size = 1 << s->w_bits; - s->w_mask = s->w_size - 1; - - s->hash_bits = memLevel + 7; - s->hash_size = 1 << s->hash_bits; - s->hash_mask = s->hash_size - 1; - s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); - - s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); - s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); - s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); - - s->high_water = 0; /* nothing written to s->window yet */ - - s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - - overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - s->pending_buf = (uchf *) overlay; - s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); - - if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || - s->pending_buf == Z_NULL) { - s->status = FINISH_STATE; - strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); - deflateEnd (strm); - return Z_MEM_ERROR; - } - s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; - - s->level = level; - s->strategy = strategy; - s->method = (Byte)method; - - return deflateReset(strm); -} - -/* ========================================================================= */ -int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) - z_streamp strm; - const Bytef *dictionary; - uInt dictLength; -{ - deflate_state *s; - uInt length = dictLength; - uInt n; - IPos hash_head = 0; - - if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || - strm->state->wrap == 2 || - (strm->state->wrap == 1 && strm->state->status != INIT_STATE)) - return Z_STREAM_ERROR; - - s = strm->state; - if (s->wrap) - strm->adler = adler32(strm->adler, dictionary, dictLength); - - if (length < MIN_MATCH) return Z_OK; - if (length > s->w_size) { - length = s->w_size; - dictionary += dictLength - length; /* use the tail of the dictionary */ - } - zmemcpy(s->window, dictionary, length); - s->strstart = length; - s->block_start = (long)length; - - /* Insert all strings in the hash table (except for the last two bytes). - * s->lookahead stays null, so s->ins_h will be recomputed at the next - * call of fill_window. - */ - s->ins_h = s->window[0]; - UPDATE_HASH(s, s->ins_h, s->window[1]); - for (n = 0; n <= length - MIN_MATCH; n++) { - INSERT_STRING(s, n, hash_head); - } - if (hash_head) hash_head = 0; /* to make compiler happy */ - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateReset (strm) - z_streamp strm; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { - return Z_STREAM_ERROR; - } - - strm->total_in = strm->total_out = 0; - strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ - strm->data_type = Z_UNKNOWN; - - s = (deflate_state *)strm->state; - s->pending = 0; - s->pending_out = s->pending_buf; - - if (s->wrap < 0) { - s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ - } - s->status = s->wrap ? INIT_STATE : BUSY_STATE; - strm->adler = -#ifdef GZIP - s->wrap == 2 ? crc32(0L, Z_NULL, 0) : -#endif - adler32(0L, Z_NULL, 0); - s->last_flush = Z_NO_FLUSH; - - _tr_init(s); - lm_init(s); - - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateSetHeader (strm, head) - z_streamp strm; - gz_headerp head; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - if (strm->state->wrap != 2) return Z_STREAM_ERROR; - strm->state->gzhead = head; - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflatePrime (strm, bits, value) - z_streamp strm; - int bits; - int value; -{ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - strm->state->bi_valid = bits; - strm->state->bi_buf = (ush)(value & ((1 << bits) - 1)); - return Z_OK; -} - -/* ========================================================================= */ -int ZEXPORT deflateParams(strm, level, strategy) - z_streamp strm; - int level; - int strategy; -{ - deflate_state *s; - compress_func func; - int err = Z_OK; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - -#ifdef FASTEST - if (level != 0) level = 1; -#else - if (level == Z_DEFAULT_COMPRESSION) level = 6; -#endif - if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) { - return Z_STREAM_ERROR; - } - func = configuration_table[s->level].func; - - if ((strategy != s->strategy || func != configuration_table[level].func) && - strm->total_in != 0) { - /* Flush the last buffer: */ - err = deflate(strm, Z_BLOCK); - } - if (s->level != level) { - s->level = level; - s->max_lazy_match = configuration_table[level].max_lazy; - s->good_match = configuration_table[level].good_length; - s->nice_match = configuration_table[level].nice_length; - s->max_chain_length = configuration_table[level].max_chain; - } - s->strategy = strategy; - return err; -} - -/* ========================================================================= */ -int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain) - z_streamp strm; - int good_length; - int max_lazy; - int nice_length; - int max_chain; -{ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - s = strm->state; - s->good_match = good_length; - s->max_lazy_match = max_lazy; - s->nice_match = nice_length; - s->max_chain_length = max_chain; - return Z_OK; -} - -/* ========================================================================= - * For the default windowBits of 15 and memLevel of 8, this function returns - * a close to exact, as well as small, upper bound on the compressed size. - * They are coded as constants here for a reason--if the #define's are - * changed, then this function needs to be changed as well. The return - * value for 15 and 8 only works for those exact settings. - * - * For any setting other than those defaults for windowBits and memLevel, - * the value returned is a conservative worst case for the maximum expansion - * resulting from using fixed blocks instead of stored blocks, which deflate - * can emit on compressed data for some combinations of the parameters. - * - * This function could be more sophisticated to provide closer upper bounds for - * every combination of windowBits and memLevel. But even the conservative - * upper bound of about 14% expansion does not seem onerous for output buffer - * allocation. - */ -uLong ZEXPORT deflateBound(strm, sourceLen) - z_streamp strm; - uLong sourceLen; -{ - deflate_state *s; - uLong complen, wraplen; - Bytef *str; - - /* conservative upper bound for compressed data */ - complen = sourceLen + - ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5; - - /* if can't get parameters, return conservative bound plus zlib wrapper */ - if (strm == Z_NULL || strm->state == Z_NULL) - return complen + 6; - - /* compute wrapper length */ - s = strm->state; - switch (s->wrap) { - case 0: /* raw deflate */ - wraplen = 0; - break; - case 1: /* zlib wrapper */ - wraplen = 6 + (s->strstart ? 4 : 0); - break; - case 2: /* gzip wrapper */ - wraplen = 18; - if (s->gzhead != Z_NULL) { /* user-supplied gzip header */ - if (s->gzhead->extra != Z_NULL) - wraplen += 2 + s->gzhead->extra_len; - str = s->gzhead->name; - if (str != Z_NULL) - do { - wraplen++; - } while (*str++); - str = s->gzhead->comment; - if (str != Z_NULL) - do { - wraplen++; - } while (*str++); - if (s->gzhead->hcrc) - wraplen += 2; - } - break; - default: /* for compiler happiness */ - wraplen = 6; - } - - /* if not default parameters, return conservative bound */ - if (s->w_bits != 15 || s->hash_bits != 8 + 7) - return complen + wraplen; - - /* default settings: return tight bound for that case */ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + - (sourceLen >> 25) + 13 - 6 + wraplen; -} - -/* ========================================================================= - * Put a short in the pending buffer. The 16-bit value is put in MSB order. - * IN assertion: the stream state is correct and there is enough room in - * pending_buf. - */ -local void putShortMSB (s, b) - deflate_state *s; - uInt b; -{ - put_byte(s, (Byte)(b >> 8)); - put_byte(s, (Byte)(b & 0xff)); -} - -/* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->next_out buffer and copying into it. - * (See also read_buf()). - */ -local void flush_pending(strm) - z_streamp strm; -{ - unsigned len = strm->state->pending; - - if (len > strm->avail_out) len = strm->avail_out; - if (len == 0) return; - - zmemcpy(strm->next_out, strm->state->pending_out, len); - strm->next_out += len; - strm->state->pending_out += len; - strm->total_out += len; - strm->avail_out -= len; - strm->state->pending -= len; - if (strm->state->pending == 0) { - strm->state->pending_out = strm->state->pending_buf; - } -} - -/* ========================================================================= */ -int ZEXPORT deflate (strm, flush) - z_streamp strm; - int flush; -{ - int old_flush; /* value of flush param for previous deflate call */ - deflate_state *s; - - if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_BLOCK || flush < 0) { - return Z_STREAM_ERROR; - } - s = strm->state; - - if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { - ERR_RETURN(strm, Z_STREAM_ERROR); - } - if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); - - s->strm = strm; /* just in case */ - old_flush = s->last_flush; - s->last_flush = flush; - - /* Write the header */ - if (s->status == INIT_STATE) { -#ifdef GZIP - if (s->wrap == 2) { - strm->adler = crc32(0L, Z_NULL, 0); - put_byte(s, 31); - put_byte(s, 139); - put_byte(s, 8); - if (s->gzhead == Z_NULL) { - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, OS_CODE); - s->status = BUSY_STATE; - } - else { - put_byte(s, (s->gzhead->text ? 1 : 0) + - (s->gzhead->hcrc ? 2 : 0) + - (s->gzhead->extra == Z_NULL ? 0 : 4) + - (s->gzhead->name == Z_NULL ? 0 : 8) + - (s->gzhead->comment == Z_NULL ? 0 : 16) - ); - put_byte(s, (Byte)(s->gzhead->time & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff)); - put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff)); - put_byte(s, s->level == 9 ? 2 : - (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? - 4 : 0)); - put_byte(s, s->gzhead->os & 0xff); - if (s->gzhead->extra != Z_NULL) { - put_byte(s, s->gzhead->extra_len & 0xff); - put_byte(s, (s->gzhead->extra_len >> 8) & 0xff); - } - if (s->gzhead->hcrc) - strm->adler = crc32(strm->adler, s->pending_buf, - s->pending); - s->gzindex = 0; - s->status = EXTRA_STATE; - } - } - else -#endif - { - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags; - - if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) - level_flags = 0; - else if (s->level < 6) - level_flags = 1; - else if (s->level == 6) - level_flags = 2; - else - level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); - - s->status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - strm->adler = adler32(0L, Z_NULL, 0); - } - } -#ifdef GZIP - if (s->status == EXTRA_STATE) { - if (s->gzhead->extra != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - - while (s->gzindex < (s->gzhead->extra_len & 0xffff)) { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) - break; - } - put_byte(s, s->gzhead->extra[s->gzindex]); - s->gzindex++; - } - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (s->gzindex == s->gzhead->extra_len) { - s->gzindex = 0; - s->status = NAME_STATE; - } - } - else - s->status = NAME_STATE; - } - if (s->status == NAME_STATE) { - if (s->gzhead->name != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->name[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) { - s->gzindex = 0; - s->status = COMMENT_STATE; - } - } - else - s->status = COMMENT_STATE; - } - if (s->status == COMMENT_STATE) { - if (s->gzhead->comment != Z_NULL) { - uInt beg = s->pending; /* start of bytes to update crc */ - int val; - - do { - if (s->pending == s->pending_buf_size) { - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - flush_pending(strm); - beg = s->pending; - if (s->pending == s->pending_buf_size) { - val = 1; - break; - } - } - val = s->gzhead->comment[s->gzindex++]; - put_byte(s, val); - } while (val != 0); - if (s->gzhead->hcrc && s->pending > beg) - strm->adler = crc32(strm->adler, s->pending_buf + beg, - s->pending - beg); - if (val == 0) - s->status = HCRC_STATE; - } - else - s->status = HCRC_STATE; - } - if (s->status == HCRC_STATE) { - if (s->gzhead->hcrc) { - if (s->pending + 2 > s->pending_buf_size) - flush_pending(strm); - if (s->pending + 2 <= s->pending_buf_size) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - strm->adler = crc32(0L, Z_NULL, 0); - s->status = BUSY_STATE; - } - } - else - s->status = BUSY_STATE; - } -#endif - - /* Flush as much pending output as possible */ - if (s->pending != 0) { - flush_pending(strm); - if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ - s->last_flush = -1; - return Z_OK; - } - - /* Make sure there is something to do and avoid duplicate consecutive - * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUF_ERROR. - */ - } else if (strm->avail_in == 0 && flush <= old_flush && - flush != Z_FINISH) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s->status == FINISH_STATE && strm->avail_in != 0) { - ERR_RETURN(strm, Z_BUF_ERROR); - } - - /* Start a new block or continue the current one. - */ - if (strm->avail_in != 0 || s->lookahead != 0 || - (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { - block_state bstate; - - bstate = s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : - (s->strategy == Z_RLE ? deflate_rle(s, flush) : - (*(configuration_table[s->level].func))(s, flush)); - - if (bstate == finish_started || bstate == finish_done) { - s->status = FINISH_STATE; - } - if (bstate == need_more || bstate == finish_started) { - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } - if (bstate == block_done) { - if (flush == Z_PARTIAL_FLUSH) { - _tr_align(s); - } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */ - _tr_stored_block(s, (char*)0, 0L, 0); - /* For a full flush, this empty block will be recognized - * as a special marker by inflate_sync(). - */ - if (flush == Z_FULL_FLUSH) { - CLEAR_HASH(s); /* forget history */ - if (s->lookahead == 0) { - s->strstart = 0; - s->block_start = 0L; - } - } - } - flush_pending(strm); - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } - } - } - Assert(strm->avail_out > 0, "bug2"); - - if (flush != Z_FINISH) return Z_OK; - if (s->wrap <= 0) return Z_STREAM_END; - - /* Write the trailer */ -#ifdef GZIP - if (s->wrap == 2) { - put_byte(s, (Byte)(strm->adler & 0xff)); - put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 16) & 0xff)); - put_byte(s, (Byte)((strm->adler >> 24) & 0xff)); - put_byte(s, (Byte)(strm->total_in & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 8) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 16) & 0xff)); - put_byte(s, (Byte)((strm->total_in >> 24) & 0xff)); - } - else -#endif - { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - flush_pending(strm); - /* If avail_out is zero, the application will call deflate again - * to flush the rest. - */ - if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */ - return s->pending != 0 ? Z_OK : Z_STREAM_END; -} - -/* ========================================================================= */ -int ZEXPORT deflateEnd (strm) - z_streamp strm; -{ - int status; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - - status = strm->state->status; - if (status != INIT_STATE && - status != EXTRA_STATE && - status != NAME_STATE && - status != COMMENT_STATE && - status != HCRC_STATE && - status != BUSY_STATE && - status != FINISH_STATE) { - return Z_STREAM_ERROR; - } - - /* Deallocate in reverse order of allocations: */ - TRY_FREE(strm, strm->state->pending_buf); - TRY_FREE(strm, strm->state->head); - TRY_FREE(strm, strm->state->prev); - TRY_FREE(strm, strm->state->window); - - ZFREE(strm, strm->state); - strm->state = Z_NULL; - - return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; -} - -/* ========================================================================= - * Copy the source state to the destination state. - * To simplify the source, this is not supported for 16-bit MSDOS (which - * doesn't have enough memory anyway to duplicate compression states). - */ -int ZEXPORT deflateCopy (dest, source) - z_streamp dest; - z_streamp source; -{ -#ifdef MAXSEG_64K - return Z_STREAM_ERROR; -#else - deflate_state *ds; - deflate_state *ss; - ushf *overlay; - - - if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { - return Z_STREAM_ERROR; - } - - ss = source->state; - - zmemcpy(dest, source, sizeof(z_stream)); - - ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); - if (ds == Z_NULL) return Z_MEM_ERROR; - dest->state = (struct internal_state FAR *) ds; - zmemcpy(ds, ss, sizeof(deflate_state)); - ds->strm = dest; - - ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); - ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); - ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); - overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); - ds->pending_buf = (uchf *) overlay; - - if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || - ds->pending_buf == Z_NULL) { - deflateEnd (dest); - return Z_MEM_ERROR; - } - /* following zmemcpy do not work for 16-bit MSDOS */ - zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); - zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); - zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); - zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); - - ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); - ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); - ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; - - ds->l_desc.dyn_tree = ds->dyn_ltree; - ds->d_desc.dyn_tree = ds->dyn_dtree; - ds->bl_desc.dyn_tree = ds->bl_tree; - - return Z_OK; -#endif /* MAXSEG_64K */ -} - -/* =========================================================================== - * Read a new buffer from the current input stream, update the adler32 - * and total number of bytes read. All deflate() input goes through - * this function so some applications may wish to modify it to avoid - * allocating a large strm->next_in buffer and copying from it. - * (See also flush_pending()). - */ -local int read_buf(strm, buf, size) - z_streamp strm; - Bytef *buf; - unsigned size; -{ - unsigned len = strm->avail_in; - - if (len > size) len = size; - if (len == 0) return 0; - - strm->avail_in -= len; - - if (strm->state->wrap == 1) { - strm->adler = adler32(strm->adler, strm->next_in, len); - } -#ifdef GZIP - else if (strm->state->wrap == 2) { - strm->adler = crc32(strm->adler, strm->next_in, len); - } -#endif - zmemcpy(buf, strm->next_in, len); - strm->next_in += len; - strm->total_in += len; - - return (int)len; -} - -/* =========================================================================== - * Initialize the "longest match" routines for a new zlib stream - */ -local void lm_init (s) - deflate_state *s; -{ - s->window_size = (ulg)2L*s->w_size; - - CLEAR_HASH(s); - - /* Set the default configuration parameters: - */ - s->max_lazy_match = configuration_table[s->level].max_lazy; - s->good_match = configuration_table[s->level].good_length; - s->nice_match = configuration_table[s->level].nice_length; - s->max_chain_length = configuration_table[s->level].max_chain; - - s->strstart = 0; - s->block_start = 0L; - s->lookahead = 0; - s->match_length = s->prev_length = MIN_MATCH-1; - s->match_available = 0; - s->ins_h = 0; -#ifndef FASTEST -#ifdef ASMV - match_init(); /* initialize the asm code */ -#endif -#endif -} - -#ifndef FASTEST -/* =========================================================================== - * Set match_start to the longest match starting at the given string and - * return its length. Matches shorter or equal to prev_length are discarded, - * in which case the result is equal to prev_length and match_start is - * garbage. - * IN assertions: cur_match is the head of the hash chain for the current - * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 - * OUT assertion: the match length is not greater than s->lookahead. - */ -#ifndef ASMV -/* For 80x86 and 680x0, an optimized version will be provided in match.asm or - * match.S. The code will be functionally equivalent. - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - unsigned chain_length = s->max_chain_length;/* max hash chain length */ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ - int nice_match = s->nice_match; /* stop if match long enough */ - IPos limit = s->strstart > (IPos)MAX_DIST(s) ? - s->strstart - (IPos)MAX_DIST(s) : NIL; - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - Posf *prev = s->prev; - uInt wmask = s->w_mask; - -#ifdef UNALIGNED_OK - /* Compare two bytes at a time. Note: this is not always beneficial. - * Try with and without -DUNALIGNED_OK to check. - */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; - register ush scan_start = *(ushf*)scan; - register ush scan_end = *(ushf*)(scan+best_len-1); -#else - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - register Byte scan_end1 = scan[best_len-1]; - register Byte scan_end = scan[best_len]; -#endif - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s->prev_length >= s->good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - Assert(cur_match < s->strstart, "no future"); - match = s->window + cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2. Note that the checks below - * for insufficient lookahead only occur occasionally for performance - * reasons. Therefore uninitialized memory will be accessed, and - * conditional jumps will be made that depend on those values. - * However the length of the match is limited to the lookahead, so - * the output of deflate is not affected by the uninitialized values. - */ -#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) - /* This code assumes sizeof(unsigned short) == 2. Do not use - * UNALIGNED_OK if your compiler uses a different size. - */ - if (*(ushf*)(match+best_len-1) != scan_end || - *(ushf*)match != scan_start) continue; - - /* It is not necessary to compare scan[2] and match[2] since they are - * always equal when the other bytes match, given that the hash keys - * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at - * strstart+3, +5, ... up to strstart+257. We check for insufficient - * lookahead only every 4th comparison; the 128th check will be made - * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is - * necessary to put more guard bytes at the end of the window, or - * to check more often for insufficient lookahead. - */ - Assert(scan[2] == match[2], "scan[2]?"); - scan++, match++; - do { - } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - scan < strend); - /* The funny "do {}" generates better code on most compilers */ - - /* Here, scan <= window+strstart+257 */ - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - if (*scan == *match) scan++; - - len = (MAX_MATCH - 1) - (int)(strend-scan); - scan = strend - (MAX_MATCH-1); - -#else /* UNALIGNED_OK */ - - if (match[best_len] != scan_end || - match[best_len-1] != scan_end1 || - *match != *scan || - *++match != scan[1]) continue; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match++; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - scan = strend - MAX_MATCH; - -#endif /* UNALIGNED_OK */ - - if (len > best_len) { - s->match_start = cur_match; - best_len = len; - if (len >= nice_match) break; -#ifdef UNALIGNED_OK - scan_end = *(ushf*)(scan+best_len-1); -#else - scan_end1 = scan[best_len-1]; - scan_end = scan[best_len]; -#endif - } - } while ((cur_match = prev[cur_match & wmask]) > limit - && --chain_length != 0); - - if ((uInt)best_len <= s->lookahead) return (uInt)best_len; - return s->lookahead; -} -#endif /* ASMV */ - -#else /* FASTEST */ - -/* --------------------------------------------------------------------------- - * Optimized version for FASTEST only - */ -local uInt longest_match(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - Assert(cur_match < s->strstart, "no future"); - - match = s->window + cur_match; - - /* Return failure if the match length is less than 2: - */ - if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match += 2; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - - if (len < MIN_MATCH) return MIN_MATCH - 1; - - s->match_start = cur_match; - return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead; -} - -#endif /* FASTEST */ - -#ifdef DEBUG -/* =========================================================================== - * Check that the match at match_start is indeed a match. - */ -local void check_match(s, start, match, length) - deflate_state *s; - IPos start, match; - int length; -{ - /* check that the match is indeed a match */ - if (zmemcmp(s->window + match, - s->window + start, length) != EQUAL) { - fprintf(stderr, " start %u, match %u, length %d\n", - start, match, length); - do { - fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); - } while (--length != 0); - z_error("invalid match"); - } - if (z_verbose > 1) { - fprintf(stderr,"\\[%d,%d]", start-match, length); - do { putc(s->window[start++], stderr); } while (--length != 0); - } -} -#else -# define check_match(s, start, match, length) -#endif /* DEBUG */ - -/* =========================================================================== - * Fill the window when the lookahead becomes insufficient. - * Updates strstart and lookahead. - * - * IN assertion: lookahead < MIN_LOOKAHEAD - * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD - * At least one byte has been read, or avail_in == 0; reads are - * performed for at least two bytes (required for the zip translate_eol - * option -- not supported here). - */ -local void fill_window(s) - deflate_state *s; -{ - register unsigned n, m; - register Posf *p; - unsigned more; /* Amount of free space at the end of the window. */ - uInt wsize = s->w_size; - - do { - more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); - - /* Deal with !@#$% 64K limit: */ - if (sizeof(int) <= 2) { - if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - more = wsize; - - } else if (more == (unsigned)(-1)) { - /* Very unlikely, but possible on 16 bit machine if - * strstart == 0 && lookahead == 1 (input done a byte at time) - */ - more--; - } - } - - /* If the window is almost full and there is insufficient lookahead, - * move the upper half to the lower one to make room in the upper half. - */ - if (s->strstart >= wsize+MAX_DIST(s)) { - - zmemcpy(s->window, s->window+wsize, (unsigned)wsize); - s->match_start -= wsize; - s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ - s->block_start -= (long) wsize; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; -#ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); -#endif - more += wsize; - } - if (s->strm->avail_in == 0) return; - - /* If there was no sliding: - * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && - * more == window_size - lookahead - strstart - * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) - * => more >= window_size - 2*WSIZE + 2 - * In the BIG_MEM or MMAP case (not yet supported), - * window_size == input_size + MIN_LOOKAHEAD && - * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. - * Otherwise, window_size == 2*WSIZE so more >= 2. - * If there was sliding, more >= WSIZE. So in all cases, more >= 2. - */ - Assert(more >= 2, "more < 2"); - - n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); - s->lookahead += n; - - /* Initialize the hash value now that we have some input: */ - if (s->lookahead >= MIN_MATCH) { - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - } - /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, - * but this is not important since only literal bytes will be emitted. - */ - - } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); - - /* If the WIN_INIT bytes after the end of the current data have never been - * written, then zero those bytes in order to avoid memory check reports of - * the use of uninitialized (or uninitialised as Julian writes) bytes by - * the longest match routines. Update the high water mark for the next - * time through here. WIN_INIT is set to MAX_MATCH since the longest match - * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead. - */ - if (s->high_water < s->window_size) { - ulg curr = s->strstart + (ulg)(s->lookahead); - ulg init; - - if (s->high_water < curr) { - /* Previous high water mark below current data -- zero WIN_INIT - * bytes or up to end of window, whichever is less. - */ - init = s->window_size - curr; - if (init > WIN_INIT) - init = WIN_INIT; - zmemzero(s->window + curr, (unsigned)init); - s->high_water = curr + init; - } - else if (s->high_water < (ulg)curr + WIN_INIT) { - /* High water mark at or above current data, but below current data - * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up - * to end of window, whichever is less. - */ - init = (ulg)curr + WIN_INIT - s->high_water; - if (init > s->window_size - s->high_water) - init = s->window_size - s->high_water; - zmemzero(s->window + s->high_water, (unsigned)init); - s->high_water += init; - } - } -} - -/* =========================================================================== - * Flush the current block, with given end-of-file flag. - * IN assertion: strstart is set to the end of the current match. - */ -#define FLUSH_BLOCK_ONLY(s, last) { \ - _tr_flush_block(s, (s->block_start >= 0L ? \ - (charf *)&s->window[(unsigned)s->block_start] : \ - (charf *)Z_NULL), \ - (ulg)((long)s->strstart - s->block_start), \ - (last)); \ - s->block_start = s->strstart; \ - flush_pending(s->strm); \ - Tracev((stderr,"[FLUSH]")); \ -} - -/* Same but force premature exit if necessary. */ -#define FLUSH_BLOCK(s, last) { \ - FLUSH_BLOCK_ONLY(s, last); \ - if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \ -} - -/* =========================================================================== - * Copy without compression as much as possible from the input stream, return - * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. - */ -local block_state deflate_stored(s, flush) - deflate_state *s; - int flush; -{ - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: - */ - ulg max_block_size = 0xffff; - ulg max_start; - - if (max_block_size > s->pending_buf_size - 5) { - max_block_size = s->pending_buf_size - 5; - } - - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s->lookahead <= 1) { - - Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); - - fill_window(s); - if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; - - if (s->lookahead == 0) break; /* flush the current block */ - } - Assert(s->block_start >= 0L, "block gone"); - - s->strstart += s->lookahead; - s->lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; - if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; - FLUSH_BLOCK(s, 0); - } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: - */ - if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { - FLUSH_BLOCK(s, 0); - } - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -/* =========================================================================== - * Compress as much as possible from the input stream, return the current - * block state. - * This function does not perform lazy evaluation of matches and inserts - * new strings in the dictionary only for unmatched strings or for short - * matches. It is used only for the fast compression options. - */ -local block_state deflate_fast(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head; /* head of the hash chain */ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = NIL; - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - * At this point we have always match_length < MIN_MATCH - */ - if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s->match_length = longest_match (s, hash_head); - /* longest_match() sets match_start */ - } - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->match_start, s->match_length); - - _tr_tally_dist(s, s->strstart - s->match_start, - s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - - /* Insert new strings in the hash table only if the match length - * is not too large. This saves time but degrades compression. - */ -#ifndef FASTEST - if (s->match_length <= s->max_insert_length && - s->lookahead >= MIN_MATCH) { - s->match_length--; /* string at strstart already in table */ - do { - s->strstart++; - INSERT_STRING(s, s->strstart, hash_head); - /* strstart never exceeds WSIZE-MAX_MATCH, so there are - * always MIN_MATCH bytes ahead. - */ - } while (--s->match_length != 0); - s->strstart++; - } else -#endif - { - s->strstart += s->match_length; - s->match_length = 0; - s->ins_h = s->window[s->strstart]; - UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); -#if MIN_MATCH != 3 - Call UPDATE_HASH() MIN_MATCH-3 more times -#endif - /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not - * matter since it will be recomputed at next deflate call. - */ - } - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -#ifndef FASTEST -/* =========================================================================== - * Same as above, but achieves better compression. We use a lazy - * evaluation for matches: a match is finally adopted only if there is - * no better match at the next window position. - */ -local block_state deflate_slow(s, flush) - deflate_state *s; - int flush; -{ - IPos hash_head; /* head of hash chain */ - int bflush; /* set if current block must be flushed */ - - /* Process the input block. */ - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s->lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = NIL; - if (s->lookahead >= MIN_MATCH) { - INSERT_STRING(s, s->strstart, hash_head); - } - - /* Find the longest match, discarding those <= prev_length. - */ - s->prev_length = s->match_length, s->prev_match = s->match_start; - s->match_length = MIN_MATCH-1; - - if (hash_head != NIL && s->prev_length < s->max_lazy_match && - s->strstart - hash_head <= MAX_DIST(s)) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s->match_length = longest_match (s, hash_head); - /* longest_match() sets match_start */ - - if (s->match_length <= 5 && (s->strategy == Z_FILTERED -#if TOO_FAR <= 32767 - || (s->match_length == MIN_MATCH && - s->strstart - s->match_start > TOO_FAR) -#endif - )) { - - /* If prev_match is also MIN_MATCH, match_start is garbage - * but we will ignore the current match anyway. - */ - s->match_length = MIN_MATCH-1; - } - } - /* If there was a match at the previous step and the current - * match is not better, output the previous match: - */ - if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { - uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; - /* Do not insert strings in hash table beyond this. */ - - check_match(s, s->strstart-1, s->prev_match, s->prev_length); - - _tr_tally_dist(s, s->strstart -1 - s->prev_match, - s->prev_length - MIN_MATCH, bflush); - - /* Insert in hash table all strings up to the end of the match. - * strstart-1 and strstart are already inserted. If there is not - * enough lookahead, the last two strings are not inserted in - * the hash table. - */ - s->lookahead -= s->prev_length-1; - s->prev_length -= 2; - do { - if (++s->strstart <= max_insert) { - INSERT_STRING(s, s->strstart, hash_head); - } - } while (--s->prev_length != 0); - s->match_available = 0; - s->match_length = MIN_MATCH-1; - s->strstart++; - - if (bflush) FLUSH_BLOCK(s, 0); - - } else if (s->match_available) { - /* If there was no match at the previous position, output a - * single literal. If there was a match but the current match - * is longer, truncate the previous match to a single literal. - */ - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - if (bflush) { - FLUSH_BLOCK_ONLY(s, 0); - } - s->strstart++; - s->lookahead--; - if (s->strm->avail_out == 0) return need_more; - } else { - /* There is no previous match to compare with, wait for - * the next step to decide. - */ - s->match_available = 1; - s->strstart++; - s->lookahead--; - } - } - Assert (flush != Z_NO_FLUSH, "no flush?"); - if (s->match_available) { - Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - s->match_available = 0; - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} -#endif /* FASTEST */ - -/* =========================================================================== - * For Z_RLE, simply look for runs of bytes, generate matches only of distance - * one. Do not maintain a hash table. (It will be regenerated if this run of - * deflate switches away from Z_RLE.) - */ -local block_state deflate_rle(s, flush) - deflate_state *s; - int flush; -{ - int bflush; /* set if current block must be flushed */ - uInt prev; /* byte at distance one to match */ - Bytef *scan, *strend; /* scan goes up to strend for length of run */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the longest encodable run. - */ - if (s->lookahead < MAX_MATCH) { - fill_window(s); - if (s->lookahead < MAX_MATCH && flush == Z_NO_FLUSH) { - return need_more; - } - if (s->lookahead == 0) break; /* flush the current block */ - } - - /* See how many times the previous byte repeats */ - s->match_length = 0; - if (s->lookahead >= MIN_MATCH && s->strstart > 0) { - scan = s->window + s->strstart - 1; - prev = *scan; - if (prev == *++scan && prev == *++scan && prev == *++scan) { - strend = s->window + s->strstart + MAX_MATCH; - do { - } while (prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - prev == *++scan && prev == *++scan && - scan < strend); - s->match_length = MAX_MATCH - (int)(strend - scan); - if (s->match_length > s->lookahead) - s->match_length = s->lookahead; - } - } - - /* Emit match if have run of MIN_MATCH or longer, else emit literal */ - if (s->match_length >= MIN_MATCH) { - check_match(s, s->strstart, s->strstart - 1, s->match_length); - - _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush); - - s->lookahead -= s->match_length; - s->strstart += s->match_length; - s->match_length = 0; - } else { - /* No match, output a literal byte */ - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - } - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} - -/* =========================================================================== - * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table. - * (It will be regenerated if this run of deflate switches away from Huffman.) - */ -local block_state deflate_huff(s, flush) - deflate_state *s; - int flush; -{ - int bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we have a literal to write. */ - if (s->lookahead == 0) { - fill_window(s); - if (s->lookahead == 0) { - if (flush == Z_NO_FLUSH) - return need_more; - break; /* flush the current block */ - } - } - - /* Output a literal byte */ - s->match_length = 0; - Tracevv((stderr,"%c", s->window[s->strstart])); - _tr_tally_lit (s, s->window[s->strstart], bflush); - s->lookahead--; - s->strstart++; - if (bflush) FLUSH_BLOCK(s, 0); - } - FLUSH_BLOCK(s, flush == Z_FINISH); - return flush == Z_FINISH ? finish_done : block_done; -} diff --git a/zlib/deflate.h b/zlib/deflate.h deleted file mode 100755 index cbf0d1e..0000000 --- a/zlib/deflate.h +++ /dev/null @@ -1,342 +0,0 @@ -/* deflate.h -- internal compression state - * Copyright (C) 1995-2010 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id$ */ - -#ifndef DEFLATE_H -#define DEFLATE_H - -#include "zutil.h" - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer creation by deflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip encoding - should be left enabled. */ -#ifndef NO_GZIP -# define GZIP -#endif - -/* =========================================================================== - * Internal compression state. - */ - -#define LENGTH_CODES 29 -/* number of length codes, not counting the special END_BLOCK code */ - -#define LITERALS 256 -/* number of literal bytes 0..255 */ - -#define L_CODES (LITERALS+1+LENGTH_CODES) -/* number of Literal or Length codes, including the END_BLOCK code */ - -#define D_CODES 30 -/* number of distance codes */ - -#define BL_CODES 19 -/* number of codes used to transfer the bit lengths */ - -#define HEAP_SIZE (2*L_CODES+1) -/* maximum heap size */ - -#define MAX_BITS 15 -/* All codes must not exceed MAX_BITS bits */ - -#define INIT_STATE 42 -#define EXTRA_STATE 69 -#define NAME_STATE 73 -#define COMMENT_STATE 91 -#define HCRC_STATE 103 -#define BUSY_STATE 113 -#define FINISH_STATE 666 -/* Stream status */ - - -/* Data structure describing a single value and its code string. */ -typedef struct ct_data_s { - union { - ush freq; /* frequency count */ - ush code; /* bit string */ - } fc; - union { - ush dad; /* father node in Huffman tree */ - ush len; /* length of bit string */ - } dl; -} FAR ct_data; - -#define Freq fc.freq -#define Code fc.code -#define Dad dl.dad -#define Len dl.len - -typedef struct static_tree_desc_s static_tree_desc; - -typedef struct tree_desc_s { - ct_data *dyn_tree; /* the dynamic tree */ - int max_code; /* largest code with non zero frequency */ - static_tree_desc *stat_desc; /* the corresponding static tree */ -} FAR tree_desc; - -typedef ush Pos; -typedef Pos FAR Posf; -typedef unsigned IPos; - -/* A Pos is an index in the character window. We use short instead of int to - * save space in the various tables. IPos is used only for parameter passing. - */ - -typedef struct internal_state { - z_streamp strm; /* pointer back to this zlib stream */ - int status; /* as the name implies */ - Bytef *pending_buf; /* output still pending */ - ulg pending_buf_size; /* size of pending_buf */ - Bytef *pending_out; /* next pending byte to output to the stream */ - uInt pending; /* nb of bytes in the pending buffer */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - gz_headerp gzhead; /* gzip header information to write */ - uInt gzindex; /* where in extra, name, or comment */ - Byte method; /* STORED (for zip only) or DEFLATED */ - int last_flush; /* value of flush param for previous deflate call */ - - /* used by deflate.c: */ - - uInt w_size; /* LZ77 window size (32K by default) */ - uInt w_bits; /* log2(w_size) (8..16) */ - uInt w_mask; /* w_size - 1 */ - - Bytef *window; - /* Sliding window. Input bytes are read into the second half of the window, - * and move to the first half later to keep a dictionary of at least wSize - * bytes. With this organization, matches are limited to a distance of - * wSize-MAX_MATCH bytes, but this ensures that IO is always - * performed with a length multiple of the block size. Also, it limits - * the window size to 64K, which is quite useful on MSDOS. - * To do: use the user input buffer as sliding window. - */ - - ulg window_size; - /* Actual size of window: 2*wSize, except when the user input buffer - * is directly used as sliding window. - */ - - Posf *prev; - /* Link to older string with same hash index. To limit the size of this - * array to 64K, this link is maintained only for the last 32K strings. - * An index in this array is thus a window index modulo 32K. - */ - - Posf *head; /* Heads of the hash chains or NIL. */ - - uInt ins_h; /* hash index of string to be inserted */ - uInt hash_size; /* number of elements in hash table */ - uInt hash_bits; /* log2(hash_size) */ - uInt hash_mask; /* hash_size-1 */ - - uInt hash_shift; - /* Number of bits by which ins_h must be shifted at each input - * step. It must be such that after MIN_MATCH steps, the oldest - * byte no longer takes part in the hash key, that is: - * hash_shift * MIN_MATCH >= hash_bits - */ - - long block_start; - /* Window position at the beginning of the current output block. Gets - * negative when the window is moved backwards. - */ - - uInt match_length; /* length of best match */ - IPos prev_match; /* previous match */ - int match_available; /* set if previous match exists */ - uInt strstart; /* start of string to insert */ - uInt match_start; /* start of matching string */ - uInt lookahead; /* number of valid bytes ahead in window */ - - uInt prev_length; - /* Length of the best match at previous step. Matches not greater than this - * are discarded. This is used in the lazy match evaluation. - */ - - uInt max_chain_length; - /* To speed up deflation, hash chains are never searched beyond this - * length. A higher limit improves compression ratio but degrades the - * speed. - */ - - uInt max_lazy_match; - /* Attempt to find a better match only when the current match is strictly - * smaller than this value. This mechanism is used only for compression - * levels >= 4. - */ -# define max_insert_length max_lazy_match - /* Insert new strings in the hash table only if the match length is not - * greater than this length. This saves time but degrades compression. - * max_insert_length is used only for compression levels <= 3. - */ - - int level; /* compression level (1..9) */ - int strategy; /* favor or force Huffman coding*/ - - uInt good_match; - /* Use a faster search when the previous match is longer than this */ - - int nice_match; /* Stop searching when current match exceeds this */ - - /* used by trees.c: */ - /* Didn't use ct_data typedef below to supress compiler warning */ - struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ - struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ - struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ - - struct tree_desc_s l_desc; /* desc. for literal tree */ - struct tree_desc_s d_desc; /* desc. for distance tree */ - struct tree_desc_s bl_desc; /* desc. for bit length tree */ - - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ - int heap_len; /* number of elements in the heap */ - int heap_max; /* element of largest frequency */ - /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. - * The same heap array is used to build all trees. - */ - - uch depth[2*L_CODES+1]; - /* Depth of each subtree used as tie breaker for trees of equal frequency - */ - - uchf *l_buf; /* buffer for literals or lengths */ - - uInt lit_bufsize; - /* Size of match buffer for literals/lengths. There are 4 reasons for - * limiting lit_bufsize to 64K: - * - frequencies can be kept in 16 bit counters - * - if compression is not successful for the first block, all input - * data is still in the window so we can still emit a stored block even - * when input comes from standard input. (This can also be done for - * all blocks if lit_bufsize is not greater than 32K.) - * - if compression is not successful for a file smaller than 64K, we can - * even emit a stored file instead of a stored block (saving 5 bytes). - * This is applicable only for zip (not gzip or zlib). - * - creating new Huffman trees less frequently may not provide fast - * adaptation to changes in the input data statistics. (Take for - * example a binary file with poorly compressible code followed by - * a highly compressible string table.) Smaller buffer sizes give - * fast adaptation but have of course the overhead of transmitting - * trees more frequently. - * - I can't count above 4 - */ - - uInt last_lit; /* running index in l_buf */ - - ushf *d_buf; - /* Buffer for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ - - ulg opt_len; /* bit length of current block with optimal trees */ - ulg static_len; /* bit length of current block with static trees */ - uInt matches; /* number of string matches in current block */ - int last_eob_len; /* bit length of EOB code for last block */ - -#ifdef DEBUG - ulg compressed_len; /* total bit length of compressed file mod 2^32 */ - ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ -#endif - - ush bi_buf; - /* Output buffer. bits are inserted starting at the bottom (least - * significant bits). - */ - int bi_valid; - /* Number of valid bits in bi_buf. All bits above the last valid bit - * are always zero. - */ - - ulg high_water; - /* High water mark offset in window for initialized bytes -- bytes above - * this are set to zero in order to avoid memory check warnings when - * longest match routines access bytes past the input. This is then - * updated to the new high water mark. - */ - -} FAR deflate_state; - -/* Output a byte on the stream. - * IN assertion: there is enough room in pending_buf. - */ -#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} - - -#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) -/* Minimum amount of lookahead, except at the end of the input file. - * See deflate.c for comments about the MIN_MATCH+1. - */ - -#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) -/* In order to simplify the code, particularly on 16 bit machines, match - * distances are limited to MAX_DIST instead of WSIZE. - */ - -#define WIN_INIT MAX_MATCH -/* Number of bytes after end of data in window to initialize in order to avoid - memory checker errors from longest match routines */ - - /* in trees.c */ -void ZLIB_INTERNAL _tr_init OF((deflate_state *s)); -int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); -void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf, - ulg stored_len, int last)); -void ZLIB_INTERNAL _tr_align OF((deflate_state *s)); -void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, - ulg stored_len, int last)); - -#define d_code(dist) \ - ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) -/* Mapping from a distance to a distance code. dist is the distance - 1 and - * must not have side effects. _dist_code[256] and _dist_code[257] are never - * used. - */ - -#ifndef DEBUG -/* Inline versions of _tr_tally for speed: */ - -#if defined(GEN_TREES_H) || !defined(STDC) - extern uch ZLIB_INTERNAL _length_code[]; - extern uch ZLIB_INTERNAL _dist_code[]; -#else - extern const uch ZLIB_INTERNAL _length_code[]; - extern const uch ZLIB_INTERNAL _dist_code[]; -#endif - -# define _tr_tally_lit(s, c, flush) \ - { uch cc = (c); \ - s->d_buf[s->last_lit] = 0; \ - s->l_buf[s->last_lit++] = cc; \ - s->dyn_ltree[cc].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -# define _tr_tally_dist(s, distance, length, flush) \ - { uch len = (length); \ - ush dist = (distance); \ - s->d_buf[s->last_lit] = dist; \ - s->l_buf[s->last_lit++] = len; \ - dist--; \ - s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ - s->dyn_dtree[d_code(dist)].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ - } -#else -# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) -# define _tr_tally_dist(s, distance, length, flush) \ - flush = _tr_tally(s, distance, length) -#endif - -#endif /* DEFLATE_H */ diff --git a/zlib/example.c b/zlib/example.c deleted file mode 100755 index 604736f..0000000 --- a/zlib/example.c +++ /dev/null @@ -1,565 +0,0 @@ -/* example.c -- usage example of the zlib compression library - * Copyright (C) 1995-2006 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include "zlib.h" -#include - -#ifdef STDC -# include -# include -#endif - -#if defined(VMS) || defined(RISCOS) -# define TESTFILE "foo-gz" -#else -# define TESTFILE "foo.gz" -#endif - -#define CHECK_ERR(err, msg) { \ - if (err != Z_OK) { \ - fprintf(stderr, "%s error: %d\n", msg, err); \ - exit(1); \ - } \ -} - -const char hello[] = "hello, hello!"; -/* "hello world" would be more standard, but the repeated "hello" - * stresses the compression code better, sorry... - */ - -const char dictionary[] = "hello"; -uLong dictId; /* Adler32 value of the dictionary */ - -void test_compress OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_gzio OF((const char *fname, - Byte *uncompr, uLong uncomprLen)); -void test_deflate OF((Byte *compr, uLong comprLen)); -void test_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_large_deflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_large_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_flush OF((Byte *compr, uLong *comprLen)); -void test_sync OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_dict_deflate OF((Byte *compr, uLong comprLen)); -void test_dict_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -int main OF((int argc, char *argv[])); - -/* =========================================================================== - * Test compress() and uncompress() - */ -void test_compress(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - uLong len = (uLong)strlen(hello)+1; - - err = compress(compr, &comprLen, (const Bytef*)hello, len); - CHECK_ERR(err, "compress"); - - strcpy((char*)uncompr, "garbage"); - - err = uncompress(uncompr, &uncomprLen, compr, comprLen); - CHECK_ERR(err, "uncompress"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad uncompress\n"); - exit(1); - } else { - printf("uncompress(): %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Test read/write of .gz files - */ -void test_gzio(fname, uncompr, uncomprLen) - const char *fname; /* compressed file name */ - Byte *uncompr; - uLong uncomprLen; -{ -#ifdef NO_GZCOMPRESS - fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n"); -#else - int err; - int len = (int)strlen(hello)+1; - gzFile file; - z_off_t pos; - - file = gzopen(fname, "wb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - exit(1); - } - gzputc(file, 'h'); - if (gzputs(file, "ello") != 4) { - fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err)); - exit(1); - } - if (gzprintf(file, ", %s!", "hello") != 8) { - fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err)); - exit(1); - } - gzseek(file, 1L, SEEK_CUR); /* add one zero byte */ - gzclose(file); - - file = gzopen(fname, "rb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - exit(1); - } - strcpy((char*)uncompr, "garbage"); - - if (gzread(file, uncompr, (unsigned)uncomprLen) != len) { - fprintf(stderr, "gzread err: %s\n", gzerror(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); - exit(1); - } else { - printf("gzread(): %s\n", (char*)uncompr); - } - - pos = gzseek(file, -8L, SEEK_CUR); - if (pos != 6 || gztell(file) != pos) { - fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", - (long)pos, (long)gztell(file)); - exit(1); - } - - if (gzgetc(file) != ' ') { - fprintf(stderr, "gzgetc error\n"); - exit(1); - } - - if (gzungetc(' ', file) != ' ') { - fprintf(stderr, "gzungetc error\n"); - exit(1); - } - - gzgets(file, (char*)uncompr, (int)uncomprLen); - if (strlen((char*)uncompr) != 7) { /* " hello!" */ - fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello + 6)) { - fprintf(stderr, "bad gzgets after gzseek\n"); - exit(1); - } else { - printf("gzgets() after gzseek: %s\n", (char*)uncompr); - } - - gzclose(file); -#endif -} - -/* =========================================================================== - * Test deflate() with small buffers - */ -void test_deflate(compr, comprLen) - Byte *compr; - uLong comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - uLong len = (uLong)strlen(hello)+1; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_in = (Bytef*)hello; - c_stream.next_out = compr; - - while (c_stream.total_in != len && c_stream.total_out < comprLen) { - c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */ - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - } - /* Finish the stream, still forcing small buffers: */ - for (;;) { - c_stream.avail_out = 1; - err = deflate(&c_stream, Z_FINISH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "deflate"); - } - - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with small buffers - */ -void test_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = 0; - d_stream.next_out = uncompr; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) { - d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */ - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "inflate"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad inflate\n"); - exit(1); - } else { - printf("inflate(): %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Test deflate() with large buffers and dynamic change of compression level - */ -void test_large_deflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_BEST_SPEED); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_out = compr; - c_stream.avail_out = (uInt)comprLen; - - /* At this point, uncompr is still mostly zeroes, so it should compress - * very well: - */ - c_stream.next_in = uncompr; - c_stream.avail_in = (uInt)uncomprLen; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - if (c_stream.avail_in != 0) { - fprintf(stderr, "deflate not greedy\n"); - exit(1); - } - - /* Feed in already compressed data and switch to no compression: */ - deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); - c_stream.next_in = compr; - c_stream.avail_in = (uInt)comprLen/2; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - - /* Switch back to compressing mode: */ - deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED); - c_stream.next_in = uncompr; - c_stream.avail_in = (uInt)uncomprLen; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with large buffers - */ -void test_large_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = (uInt)comprLen; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - for (;;) { - d_stream.next_out = uncompr; /* discard the output */ - d_stream.avail_out = (uInt)uncomprLen; - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "large inflate"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (d_stream.total_out != 2*uncomprLen + comprLen/2) { - fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out); - exit(1); - } else { - printf("large_inflate(): OK\n"); - } -} - -/* =========================================================================== - * Test deflate() with full flush - */ -void test_flush(compr, comprLen) - Byte *compr; - uLong *comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - uInt len = (uInt)strlen(hello)+1; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_in = (Bytef*)hello; - c_stream.next_out = compr; - c_stream.avail_in = 3; - c_stream.avail_out = (uInt)*comprLen; - err = deflate(&c_stream, Z_FULL_FLUSH); - CHECK_ERR(err, "deflate"); - - compr[3]++; /* force an error in first compressed block */ - c_stream.avail_in = len - 3; - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - CHECK_ERR(err, "deflate"); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); - - *comprLen = c_stream.total_out; -} - -/* =========================================================================== - * Test inflateSync() - */ -void test_sync(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = 2; /* just read the zlib header */ - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - d_stream.next_out = uncompr; - d_stream.avail_out = (uInt)uncomprLen; - - inflate(&d_stream, Z_NO_FLUSH); - CHECK_ERR(err, "inflate"); - - d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */ - err = inflateSync(&d_stream); /* but skip the damaged part */ - CHECK_ERR(err, "inflateSync"); - - err = inflate(&d_stream, Z_FINISH); - if (err != Z_DATA_ERROR) { - fprintf(stderr, "inflate should report DATA_ERROR\n"); - /* Because of incorrect adler32 */ - exit(1); - } - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - printf("after inflateSync(): hel%s\n", (char *)uncompr); -} - -/* =========================================================================== - * Test deflate() with preset dictionary - */ -void test_dict_deflate(compr, comprLen) - Byte *compr; - uLong comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_BEST_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - err = deflateSetDictionary(&c_stream, - (const Bytef*)dictionary, sizeof(dictionary)); - CHECK_ERR(err, "deflateSetDictionary"); - - dictId = c_stream.adler; - c_stream.next_out = compr; - c_stream.avail_out = (uInt)comprLen; - - c_stream.next_in = (Bytef*)hello; - c_stream.avail_in = (uInt)strlen(hello)+1; - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with a preset dictionary - */ -void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = (uInt)comprLen; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - d_stream.next_out = uncompr; - d_stream.avail_out = (uInt)uncomprLen; - - for (;;) { - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - if (err == Z_NEED_DICT) { - if (d_stream.adler != dictId) { - fprintf(stderr, "unexpected dictionary"); - exit(1); - } - err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, - sizeof(dictionary)); - } - CHECK_ERR(err, "inflate with dict"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad inflate with dict\n"); - exit(1); - } else { - printf("inflate with dictionary: %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Usage: example [output.gz [input.gz]] - */ - -int main(argc, argv) - int argc; - char *argv[]; -{ - Byte *compr, *uncompr; - uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */ - uLong uncomprLen = comprLen; - static const char* myVersion = ZLIB_VERSION; - - if (zlibVersion()[0] != myVersion[0]) { - fprintf(stderr, "incompatible zlib version\n"); - exit(1); - - } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) { - fprintf(stderr, "warning: different zlib version\n"); - } - - printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n", - ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags()); - - compr = (Byte*)calloc((uInt)comprLen, 1); - uncompr = (Byte*)calloc((uInt)uncomprLen, 1); - /* compr and uncompr are cleared to avoid reading uninitialized - * data and to ensure that uncompr compresses well. - */ - if (compr == Z_NULL || uncompr == Z_NULL) { - printf("out of memory\n"); - exit(1); - } - test_compress(compr, comprLen, uncompr, uncomprLen); - - test_gzio((argc > 1 ? argv[1] : TESTFILE), - uncompr, uncomprLen); - - test_deflate(compr, comprLen); - test_inflate(compr, comprLen, uncompr, uncomprLen); - - test_large_deflate(compr, comprLen, uncompr, uncomprLen); - test_large_inflate(compr, comprLen, uncompr, uncomprLen); - - test_flush(compr, &comprLen); - test_sync(compr, comprLen, uncompr, uncomprLen); - comprLen = uncomprLen; - - test_dict_deflate(compr, comprLen); - test_dict_inflate(compr, comprLen, uncompr, uncomprLen); - - free(compr); - free(uncompr); - - return 0; -} diff --git a/zlib/gzclose.c b/zlib/gzclose.c deleted file mode 100755 index caeb99a..0000000 --- a/zlib/gzclose.c +++ /dev/null @@ -1,25 +0,0 @@ -/* gzclose.c -- zlib gzclose() function - * Copyright (C) 2004, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -/* gzclose() is in a separate file so that it is linked in only if it is used. - That way the other gzclose functions can be used instead to avoid linking in - unneeded compression or decompression routines. */ -int ZEXPORT gzclose(file) - gzFile file; -{ -#ifndef NO_GZCOMPRESS - gz_statep state; - - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file); -#else - return gzclose_r(file); -#endif -} diff --git a/zlib/gzguts.h b/zlib/gzguts.h deleted file mode 100755 index 9a86c03..0000000 --- a/zlib/gzguts.h +++ /dev/null @@ -1,136 +0,0 @@ -/* gzguts.h -- zlib internal header definitions for gz* operations - * Copyright (C) 2004, 2005, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#ifdef _LARGEFILE64_SOURCE -# ifndef _LARGEFILE_SOURCE -# define _LARGEFILE_SOURCE 1 -# endif -# ifdef _FILE_OFFSET_BITS -# undef _FILE_OFFSET_BITS -# endif -#endif - -#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && !defined(__WIN32__) -# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) -#else -# define ZLIB_INTERNAL -#endif - -#include -#ifdef UNIX -# include -# include -#endif -# include "zlib.h" -#ifdef STDC -# include -# include -# include -#endif -#include - -#ifdef NO_DEFLATE /* for compatibility with old definition */ -# define NO_GZCOMPRESS -#endif - -#ifdef _MSC_VER -# include -# define vsnprintf _vsnprintf -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -/* gz* functions always use library allocation functions */ -#ifndef STDC - extern voidp malloc OF((uInt size)); - extern void free OF((voidpf ptr)); -#endif - -/* get errno and strerror definition */ -#if defined UNDER_CE -# include -# define zstrerror() gz_strwinerror((DWORD)GetLastError()) -#else -# ifdef STDC -# include -# define zstrerror() strerror(errno) -# else -# define zstrerror() "stdio error (consult errno)" -# endif -#endif - -/* provide prototypes for these when building zlib without LFS */ -#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); - ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); -#endif - -/* default i/o buffer size -- double this for output when reading */ -#define GZBUFSIZE 8192 - -/* gzip modes, also provide a little integrity check on the passed structure */ -#define GZ_NONE 0 -#define GZ_READ 7247 -#define GZ_WRITE 31153 -#define GZ_APPEND 1 /* mode set to GZ_WRITE after the file is opened */ - -/* values for gz_state how */ -#define LOOK 0 /* look for a gzip header */ -#define COPY 1 /* copy input directly */ -#define GZIP 2 /* decompress a gzip stream */ - -/* internal gzip file state data structure */ -typedef struct { - /* used for both reading and writing */ - int mode; /* see gzip modes above */ - int fd; /* file descriptor */ - char *path; /* path or fd for error messages */ - z_off64_t pos; /* current position in uncompressed data */ - unsigned size; /* buffer size, zero if not allocated yet */ - unsigned want; /* requested buffer size, default is GZBUFSIZE */ - unsigned char *in; /* input buffer */ - unsigned char *out; /* output buffer (double-sized when reading) */ - unsigned char *next; /* next output data to deliver or write */ - /* just for reading */ - unsigned have; /* amount of output data unused at next */ - int eof; /* true if end of input file reached */ - z_off64_t start; /* where the gzip data started, for rewinding */ - z_off64_t raw; /* where the raw data started, for seeking */ - int how; /* 0: get header, 1: copy, 2: decompress */ - int direct; /* true if last read direct, false if gzip */ - /* just for writing */ - int level; /* compression level */ - int strategy; /* compression strategy */ - /* seek request */ - z_off64_t skip; /* amount to skip (already rewound if backwards) */ - int seek; /* true if seek request pending */ - /* error information */ - int err; /* error code */ - char *msg; /* error message */ - /* zlib inflate or deflate stream */ - z_stream strm; /* stream structure in-place (not a pointer) */ -} gz_state; -typedef gz_state FAR *gz_statep; - -/* shared functions */ -void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *)); -#if defined UNDER_CE -char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error)); -#endif - -/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t - value -- needed when comparing unsigned to z_off64_t, which is signed - (possible z_off64_t types off_t, off64_t, and long are all signed) */ -#ifdef INT_MAX -# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX) -#else -unsigned ZLIB_INTERNAL gz_intmax OF((void)); -# define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax()) -#endif diff --git a/zlib/gzlib.c b/zlib/gzlib.c deleted file mode 100755 index 603e60e..0000000 --- a/zlib/gzlib.c +++ /dev/null @@ -1,537 +0,0 @@ -/* gzlib.c -- zlib functions common to reading and writing gzip files - * Copyright (C) 2004, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define LSEEK lseek64 -#else -# define LSEEK lseek -#endif - -/* Local functions */ -local void gz_reset OF((gz_statep)); -local gzFile gz_open OF((const char *, int, const char *)); - -#if defined UNDER_CE - -/* Map the Windows error number in ERROR to a locale-dependent error message - string and return a pointer to it. Typically, the values for ERROR come - from GetLastError. - - The string pointed to shall not be modified by the application, but may be - overwritten by a subsequent call to gz_strwinerror - - The gz_strwinerror function does not change the current setting of - GetLastError. */ -char ZLIB_INTERNAL *gz_strwinerror (error) - DWORD error; -{ - static char buf[1024]; - - wchar_t *msgbuf; - DWORD lasterr = GetLastError(); - DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM - | FORMAT_MESSAGE_ALLOCATE_BUFFER, - NULL, - error, - 0, /* Default language */ - (LPVOID)&msgbuf, - 0, - NULL); - if (chars != 0) { - /* If there is an \r\n appended, zap it. */ - if (chars >= 2 - && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { - chars -= 2; - msgbuf[chars] = 0; - } - - if (chars > sizeof (buf) - 1) { - chars = sizeof (buf) - 1; - msgbuf[chars] = 0; - } - - wcstombs(buf, msgbuf, chars + 1); - LocalFree(msgbuf); - } - else { - sprintf(buf, "unknown win32 error (%ld)", error); - } - - SetLastError(lasterr); - return buf; -} - -#endif /* UNDER_CE */ - -/* Reset gzip file state */ -local void gz_reset(state) - gz_statep state; -{ - if (state->mode == GZ_READ) { /* for reading ... */ - state->have = 0; /* no output data available */ - state->eof = 0; /* not at end of file */ - state->how = LOOK; /* look for gzip header */ - state->direct = 1; /* default for empty file */ - } - state->seek = 0; /* no seek request pending */ - gz_error(state, Z_OK, NULL); /* clear error */ - state->pos = 0; /* no uncompressed data yet */ - state->strm.avail_in = 0; /* no input data yet */ -} - -/* Open a gzip file either by name or file descriptor. */ -local gzFile gz_open(path, fd, mode) - const char *path; - int fd; - const char *mode; -{ - gz_statep state; - - /* allocate gzFile structure to return */ - state = malloc(sizeof(gz_state)); - if (state == NULL) - return NULL; - state->size = 0; /* no buffers allocated yet */ - state->want = GZBUFSIZE; /* requested buffer size */ - state->msg = NULL; /* no error message yet */ - - /* interpret mode */ - state->mode = GZ_NONE; - state->level = Z_DEFAULT_COMPRESSION; - state->strategy = Z_DEFAULT_STRATEGY; - while (*mode) { - if (*mode >= '0' && *mode <= '9') - state->level = *mode - '0'; - else - switch (*mode) { - case 'r': - state->mode = GZ_READ; - break; -#ifndef NO_GZCOMPRESS - case 'w': - state->mode = GZ_WRITE; - break; - case 'a': - state->mode = GZ_APPEND; - break; -#endif - case '+': /* can't read and write at the same time */ - free(state); - return NULL; - case 'b': /* ignore -- will request binary anyway */ - break; - case 'f': - state->strategy = Z_FILTERED; - break; - case 'h': - state->strategy = Z_HUFFMAN_ONLY; - break; - case 'R': - state->strategy = Z_RLE; - break; - case 'F': - state->strategy = Z_FIXED; - default: /* could consider as an error, but just ignore */ - ; - } - mode++; - } - - /* must provide an "r", "w", or "a" */ - if (state->mode == GZ_NONE) { - free(state); - return NULL; - } - - /* save the path name for error messages */ - state->path = malloc(strlen(path) + 1); - if (state->path == NULL) { - free(state); - return NULL; - } - strcpy(state->path, path); - - /* open the file with the appropriate mode (or just use fd) */ - state->fd = fd != -1 ? fd : - open(path, -#ifdef O_LARGEFILE - O_LARGEFILE | -#endif -#ifdef O_BINARY - O_BINARY | -#endif - (state->mode == GZ_READ ? - O_RDONLY : - (O_WRONLY | O_CREAT | ( - state->mode == GZ_WRITE ? - O_TRUNC : - O_APPEND))), - 0666); - if (state->fd == -1) { - free(state->path); - free(state); - return NULL; - } - if (state->mode == GZ_APPEND) - state->mode = GZ_WRITE; /* simplify later checks */ - - /* save the current position for rewinding (only if reading) */ - if (state->mode == GZ_READ) { - state->start = LSEEK(state->fd, 0, SEEK_CUR); - if (state->start == -1) state->start = 0; - } - - /* initialize stream */ - gz_reset(state); - - /* return stream */ - return (gzFile)state; -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzopen(path, mode) - const char *path; - const char *mode; -{ - return gz_open(path, -1, mode); -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzopen64(path, mode) - const char *path; - const char *mode; -{ - return gz_open(path, -1, mode); -} - -/* -- see zlib.h -- */ -gzFile ZEXPORT gzdopen(fd, mode) - int fd; - const char *mode; -{ - char *path; /* identifier for error messages */ - gzFile gz; - - if (fd == -1 || (path = malloc(7 + 3 * sizeof(int))) == NULL) - return NULL; - sprintf(path, "", fd); /* for debugging */ - gz = gz_open(path, fd, mode); - free(path); - return gz; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzbuffer(file, size) - gzFile file; - unsigned size; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* make sure we haven't already allocated memory */ - if (state->size != 0) - return -1; - - /* check and set requested size */ - if (size == 0) - return -1; - state->want = size; - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzrewind(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || state->err != Z_OK) - return -1; - - /* back up and start over */ - if (LSEEK(state->fd, state->start, SEEK_SET) == -1) - return -1; - gz_reset(state); - return 0; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gzseek64(file, offset, whence) - gzFile file; - z_off64_t offset; - int whence; -{ - unsigned n; - z_off64_t ret; - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* check that there's no error */ - if (state->err != Z_OK) - return -1; - - /* can only seek from start or relative to current position */ - if (whence != SEEK_SET && whence != SEEK_CUR) - return -1; - - /* normalize offset to a SEEK_CUR specification */ - if (whence == SEEK_SET) - offset -= state->pos; - else if (state->seek) - offset += state->skip; - state->seek = 0; - - /* if within raw area while reading, just go there */ - if (state->mode == GZ_READ && state->how == COPY && - state->pos + offset >= state->raw) { - ret = LSEEK(state->fd, offset - state->have, SEEK_CUR); - if (ret == -1) - return -1; - state->have = 0; - state->eof = 0; - state->seek = 0; - gz_error(state, Z_OK, NULL); - state->strm.avail_in = 0; - state->pos += offset; - return state->pos; - } - - /* calculate skip amount, rewinding if needed for back seek when reading */ - if (offset < 0) { - if (state->mode != GZ_READ) /* writing -- can't go backwards */ - return -1; - offset += state->pos; - if (offset < 0) /* before start of file! */ - return -1; - if (gzrewind(file) == -1) /* rewind, then skip to offset */ - return -1; - } - - /* if reading, skip what's in output buffer (one less gzgetc() check) */ - if (state->mode == GZ_READ) { - n = GT_OFF(state->have) || (z_off64_t)state->have > offset ? - (unsigned)offset : state->have; - state->have -= n; - state->next += n; - state->pos += n; - offset -= n; - } - - /* request skip (if not zero) */ - if (offset) { - state->seek = 1; - state->skip = offset; - } - return state->pos + offset; -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gzseek(file, offset, whence) - gzFile file; - z_off_t offset; - int whence; -{ - z_off64_t ret; - - ret = gzseek64(file, (z_off64_t)offset, whence); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gztell64(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* return position */ - return state->pos + (state->seek ? state->skip : 0); -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gztell(file) - gzFile file; -{ - z_off64_t ret; - - ret = gztell64(file); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -z_off64_t ZEXPORT gzoffset64(file) - gzFile file; -{ - z_off64_t offset; - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return -1; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return -1; - - /* compute and return effective offset in file */ - offset = LSEEK(state->fd, 0, SEEK_CUR); - if (offset == -1) - return -1; - if (state->mode == GZ_READ) /* reading */ - offset -= state->strm.avail_in; /* don't count buffered input */ - return offset; -} - -/* -- see zlib.h -- */ -z_off_t ZEXPORT gzoffset(file) - gzFile file; -{ - z_off64_t ret; - - ret = gzoffset64(file); - return ret == (z_off_t)ret ? (z_off_t)ret : -1; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzeof(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return 0; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return 0; - - /* return end-of-file state */ - return state->mode == GZ_READ ? - (state->eof && state->strm.avail_in == 0 && state->have == 0) : 0; -} - -/* -- see zlib.h -- */ -const char * ZEXPORT gzerror(file, errnum) - gzFile file; - int *errnum; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return NULL; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return NULL; - - /* return error information */ - if (errnum != NULL) - *errnum = state->err; - return state->msg == NULL ? "" : state->msg; -} - -/* -- see zlib.h -- */ -void ZEXPORT gzclearerr(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure and check integrity */ - if (file == NULL) - return; - state = (gz_statep)file; - if (state->mode != GZ_READ && state->mode != GZ_WRITE) - return; - - /* clear error and end-of-file */ - if (state->mode == GZ_READ) - state->eof = 0; - gz_error(state, Z_OK, NULL); -} - -/* Create an error message in allocated memory and set state->err and - state->msg accordingly. Free any previous error message already there. Do - not try to free or allocate space if the error is Z_MEM_ERROR (out of - memory). Simply save the error message as a static string. If there is an - allocation failure constructing the error message, then convert the error to - out of memory. */ -void ZLIB_INTERNAL gz_error(state, err, msg) - gz_statep state; - int err; - const char *msg; -{ - /* free previously allocated message and clear */ - if (state->msg != NULL) { - if (state->err != Z_MEM_ERROR) - free(state->msg); - state->msg = NULL; - } - - /* set error code, and if no message, then done */ - state->err = err; - if (msg == NULL) - return; - - /* for an out of memory error, save as static string */ - if (err == Z_MEM_ERROR) { - state->msg = (char *)msg; - return; - } - - /* construct error message with path */ - if ((state->msg = malloc(strlen(state->path) + strlen(msg) + 3)) == NULL) { - state->err = Z_MEM_ERROR; - state->msg = (char *)"out of memory"; - return; - } - strcpy(state->msg, state->path); - strcat(state->msg, ": "); - strcat(state->msg, msg); - return; -} - -#ifndef INT_MAX -/* portably return maximum value for an int (when limits.h presumed not - available) -- we need to do this to cover cases where 2's complement not - used, since C standard permits 1's complement and sign-bit representations, - otherwise we could just use ((unsigned)-1) >> 1 */ -unsigned ZLIB_INTERNAL gz_intmax() -{ - unsigned p, q; - - p = 1; - do { - q = p; - p <<= 1; - p++; - } while (p > q); - return q >> 1; -} -#endif diff --git a/zlib/gzread.c b/zlib/gzread.c deleted file mode 100755 index 548201a..0000000 --- a/zlib/gzread.c +++ /dev/null @@ -1,653 +0,0 @@ -/* gzread.c -- zlib functions for reading gzip files - * Copyright (C) 2004, 2005, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -/* Local functions */ -local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *)); -local int gz_avail OF((gz_statep)); -local int gz_next4 OF((gz_statep, unsigned long *)); -local int gz_head OF((gz_statep)); -local int gz_decomp OF((gz_statep)); -local int gz_make OF((gz_statep)); -local int gz_skip OF((gz_statep, z_off64_t)); - -/* Use read() to load a buffer -- return -1 on error, otherwise 0. Read from - state->fd, and update state->eof, state->err, and state->msg as appropriate. - This function needs to loop on read(), since read() is not guaranteed to - read the number of bytes requested, depending on the type of descriptor. */ -local int gz_load(state, buf, len, have) - gz_statep state; - unsigned char *buf; - unsigned len; - unsigned *have; -{ - int ret; - - *have = 0; - do { - ret = read(state->fd, buf + *have, len - *have); - if (ret <= 0) - break; - *have += ret; - } while (*have < len); - if (ret < 0) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; - } - if (ret == 0) - state->eof = 1; - return 0; -} - -/* Load up input buffer and set eof flag if last data loaded -- return -1 on - error, 0 otherwise. Note that the eof flag is set when the end of the input - file is reached, even though there may be unused data in the buffer. Once - that data has been used, no more attempts will be made to read the file. - gz_avail() assumes that strm->avail_in == 0. */ -local int gz_avail(state) - gz_statep state; -{ - z_streamp strm = &(state->strm); - - if (state->err != Z_OK) - return -1; - if (state->eof == 0) { - if (gz_load(state, state->in, state->size, - (unsigned *)&(strm->avail_in)) == -1) - return -1; - strm->next_in = state->in; - } - return 0; -} - -/* Get next byte from input, or -1 if end or error. */ -#define NEXT() ((strm->avail_in == 0 && gz_avail(state) == -1) ? -1 : \ - (strm->avail_in == 0 ? -1 : \ - (strm->avail_in--, *(strm->next_in)++))) - -/* Get a four-byte little-endian integer and return 0 on success and the value - in *ret. Otherwise -1 is returned and *ret is not modified. */ -local int gz_next4(state, ret) - gz_statep state; - unsigned long *ret; -{ - int ch; - unsigned long val; - z_streamp strm = &(state->strm); - - val = NEXT(); - val += (unsigned)NEXT() << 8; - val += (unsigned long)NEXT() << 16; - ch = NEXT(); - if (ch == -1) - return -1; - val += (unsigned long)ch << 24; - *ret = val; - return 0; -} - -/* Look for gzip header, set up for inflate or copy. state->have must be zero. - If this is the first time in, allocate required memory. state->how will be - left unchanged if there is no more input data available, will be set to COPY - if there is no gzip header and direct copying will be performed, or it will - be set to GZIP for decompression, and the gzip header will be skipped so - that the next available input data is the raw deflate stream. If direct - copying, then leftover input data from the input buffer will be copied to - the output buffer. In that case, all further file reads will be directly to - either the output buffer or a user buffer. If decompressing, the inflate - state and the check value will be initialized. gz_head() will return 0 on - success or -1 on failure. Failures may include read errors or gzip header - errors. */ -local int gz_head(state) - gz_statep state; -{ - z_streamp strm = &(state->strm); - int flags; - unsigned len; - - /* allocate read buffers and inflate memory */ - if (state->size == 0) { - /* allocate buffers */ - state->in = malloc(state->want); - state->out = malloc(state->want << 1); - if (state->in == NULL || state->out == NULL) { - if (state->out != NULL) - free(state->out); - if (state->in != NULL) - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - state->size = state->want; - - /* allocate inflate memory */ - state->strm.zalloc = Z_NULL; - state->strm.zfree = Z_NULL; - state->strm.opaque = Z_NULL; - state->strm.avail_in = 0; - state->strm.next_in = Z_NULL; - if (inflateInit2(&(state->strm), -15) != Z_OK) { /* raw inflate */ - free(state->out); - free(state->in); - state->size = 0; - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - } - - /* get some data in the input buffer */ - if (strm->avail_in == 0) { - if (gz_avail(state) == -1) - return -1; - if (strm->avail_in == 0) - return 0; - } - - /* look for the gzip magic header bytes 31 and 139 */ - if (strm->next_in[0] == 31) { - strm->avail_in--; - strm->next_in++; - if (strm->avail_in == 0 && gz_avail(state) == -1) - return -1; - if (strm->avail_in && strm->next_in[0] == 139) { - /* we have a gzip header, woo hoo! */ - strm->avail_in--; - strm->next_in++; - - /* skip rest of header */ - if (NEXT() != 8) { /* compression method */ - gz_error(state, Z_DATA_ERROR, "unknown compression method"); - return -1; - } - flags = NEXT(); - if (flags & 0xe0) { /* reserved flag bits */ - gz_error(state, Z_DATA_ERROR, "unknown header flags set"); - return -1; - } - NEXT(); /* modification time */ - NEXT(); - NEXT(); - NEXT(); - NEXT(); /* extra flags */ - NEXT(); /* operating system */ - if (flags & 4) { /* extra field */ - len = (unsigned)NEXT(); - len += (unsigned)NEXT() << 8; - while (len--) - if (NEXT() < 0) - break; - } - if (flags & 8) /* file name */ - while (NEXT() > 0) - ; - if (flags & 16) /* comment */ - while (NEXT() > 0) - ; - if (flags & 2) { /* header crc */ - NEXT(); - NEXT(); - } - /* an unexpected end of file is not checked for here -- it will be - noticed on the first request for uncompressed data */ - - /* set up for decompression */ - inflateReset(strm); - strm->adler = crc32(0L, Z_NULL, 0); - state->how = GZIP; - state->direct = 0; - return 0; - } - else { - /* not a gzip file -- save first byte (31) and fall to raw i/o */ - state->out[0] = 31; - state->have = 1; - } - } - - /* doing raw i/o, save start of raw data for seeking, copy any leftover - input to output -- this assumes that the output buffer is larger than - the input buffer, which also assures space for gzungetc() */ - state->raw = state->pos; - state->next = state->out; - if (strm->avail_in) { - memcpy(state->next + state->have, strm->next_in, strm->avail_in); - state->have += strm->avail_in; - strm->avail_in = 0; - } - state->how = COPY; - state->direct = 1; - return 0; -} - -/* Decompress from input to the provided next_out and avail_out in the state. - If the end of the compressed data is reached, then verify the gzip trailer - check value and length (modulo 2^32). state->have and state->next are set - to point to the just decompressed data, and the crc is updated. If the - trailer is verified, state->how is reset to LOOK to look for the next gzip - stream or raw data, once state->have is depleted. Returns 0 on success, -1 - on failure. Failures may include invalid compressed data or a failed gzip - trailer verification. */ -local int gz_decomp(state) - gz_statep state; -{ - int ret; - unsigned had; - unsigned long crc, len; - z_streamp strm = &(state->strm); - - /* fill output buffer up to end of deflate stream */ - had = strm->avail_out; - do { - /* get more input for inflate() */ - if (strm->avail_in == 0 && gz_avail(state) == -1) - return -1; - if (strm->avail_in == 0) { - gz_error(state, Z_DATA_ERROR, "unexpected end of file"); - return -1; - } - - /* decompress and handle errors */ - ret = inflate(strm, Z_NO_FLUSH); - if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) { - gz_error(state, Z_STREAM_ERROR, - "internal error: inflate stream corrupt"); - return -1; - } - if (ret == Z_MEM_ERROR) { - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - if (ret == Z_DATA_ERROR) { /* deflate stream invalid */ - gz_error(state, Z_DATA_ERROR, - strm->msg == NULL ? "compressed data error" : strm->msg); - return -1; - } - } while (strm->avail_out && ret != Z_STREAM_END); - - /* update available output and crc check value */ - state->have = had - strm->avail_out; - state->next = strm->next_out - state->have; - strm->adler = crc32(strm->adler, state->next, state->have); - - /* check gzip trailer if at end of deflate stream */ - if (ret == Z_STREAM_END) { - if (gz_next4(state, &crc) == -1 || gz_next4(state, &len) == -1) { - gz_error(state, Z_DATA_ERROR, "unexpected end of file"); - return -1; - } - if (crc != strm->adler) { - gz_error(state, Z_DATA_ERROR, "incorrect data check"); - return -1; - } - if (len != (strm->total_out & 0xffffffffL)) { - gz_error(state, Z_DATA_ERROR, "incorrect length check"); - return -1; - } - state->how = LOOK; /* ready for next stream, once have is 0 (leave - state->direct unchanged to remember how) */ - } - - /* good decompression */ - return 0; -} - -/* Make data and put in the output buffer. Assumes that state->have == 0. - Data is either copied from the input file or decompressed from the input - file depending on state->how. If state->how is LOOK, then a gzip header is - looked for (and skipped if found) to determine wither to copy or decompress. - Returns -1 on error, otherwise 0. gz_make() will leave state->have as COPY - or GZIP unless the end of the input file has been reached and all data has - been processed. */ -local int gz_make(state) - gz_statep state; -{ - z_streamp strm = &(state->strm); - - if (state->how == LOOK) { /* look for gzip header */ - if (gz_head(state) == -1) - return -1; - if (state->have) /* got some data from gz_head() */ - return 0; - } - if (state->how == COPY) { /* straight copy */ - if (gz_load(state, state->out, state->size << 1, &(state->have)) == -1) - return -1; - state->next = state->out; - } - else if (state->how == GZIP) { /* decompress */ - strm->avail_out = state->size << 1; - strm->next_out = state->out; - if (gz_decomp(state) == -1) - return -1; - } - return 0; -} - -/* Skip len uncompressed bytes of output. Return -1 on error, 0 on success. */ -local int gz_skip(state, len) - gz_statep state; - z_off64_t len; -{ - unsigned n; - - /* skip over len bytes or reach end-of-file, whichever comes first */ - while (len) - /* skip over whatever is in output buffer */ - if (state->have) { - n = GT_OFF(state->have) || (z_off64_t)state->have > len ? - (unsigned)len : state->have; - state->have -= n; - state->next += n; - state->pos += n; - len -= n; - } - - /* output buffer empty -- return if we're at the end of the input */ - else if (state->eof && state->strm.avail_in == 0) - break; - - /* need more data to skip -- load up output buffer */ - else { - /* get more output, looking for header if required */ - if (gz_make(state) == -1) - return -1; - } - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzread(file, buf, len) - gzFile file; - voidp buf; - unsigned len; -{ - unsigned got, n; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || state->err != Z_OK) - return -1; - - /* since an int is returned, make sure len fits in one, otherwise return - with an error (this avoids the flaw in the interface) */ - if ((int)len < 0) { - gz_error(state, Z_BUF_ERROR, "requested length does not fit in int"); - return -1; - } - - /* if len is zero, avoid unnecessary operations */ - if (len == 0) - return 0; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return -1; - } - - /* get len bytes to buf, or less than len if at the end */ - got = 0; - do { - /* first just try copying data from the output buffer */ - if (state->have) { - n = state->have > len ? len : state->have; - memcpy(buf, state->next, n); - state->next += n; - state->have -= n; - } - - /* output buffer empty -- return if we're at the end of the input */ - else if (state->eof && strm->avail_in == 0) - break; - - /* need output data -- for small len or new stream load up our output - buffer */ - else if (state->how == LOOK || len < (state->size << 1)) { - /* get more output, looking for header if required */ - if (gz_make(state) == -1) - return -1; - continue; /* no progress yet -- go back to memcpy() above */ - /* the copy above assures that we will leave with space in the - output buffer, allowing at least one gzungetc() to succeed */ - } - - /* large len -- read directly into user buffer */ - else if (state->how == COPY) { /* read directly */ - if (gz_load(state, buf, len, &n) == -1) - return -1; - } - - /* large len -- decompress directly into user buffer */ - else { /* state->how == GZIP */ - strm->avail_out = len; - strm->next_out = buf; - if (gz_decomp(state) == -1) - return -1; - n = state->have; - state->have = 0; - } - - /* update progress */ - len -= n; - buf = (char *)buf + n; - got += n; - state->pos += n; - } while (len); - - /* return number of bytes read into user buffer (will fit in int) */ - return (int)got; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzgetc(file) - gzFile file; -{ - int ret; - unsigned char buf[1]; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || state->err != Z_OK) - return -1; - - /* try output buffer (no need to check for skip request) */ - if (state->have) { - state->have--; - state->pos++; - return *(state->next)++; - } - - /* nothing there -- try gzread() */ - ret = gzread(file, buf, 1); - return ret < 1 ? -1 : buf[0]; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzungetc(c, file) - int c; - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || state->err != Z_OK) - return -1; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return -1; - } - - /* can't push EOF */ - if (c < 0) - return -1; - - /* if output buffer empty, put byte at end (allows more pushing) */ - if (state->have == 0) { - state->have = 1; - state->next = state->out + (state->size << 1) - 1; - state->next[0] = c; - state->pos--; - return c; - } - - /* if no room, give up (must have already done a gzungetc()) */ - if (state->have == (state->size << 1)) { - gz_error(state, Z_BUF_ERROR, "out of room to push characters"); - return -1; - } - - /* slide output data if needed and insert byte before existing data */ - if (state->next == state->out) { - unsigned char *src = state->out + state->have; - unsigned char *dest = state->out + (state->size << 1); - while (src > state->out) - *--dest = *--src; - state->next = dest; - } - state->have++; - state->next--; - state->next[0] = c; - state->pos--; - return c; -} - -/* -- see zlib.h -- */ -char * ZEXPORT gzgets(file, buf, len) - gzFile file; - char *buf; - int len; -{ - unsigned left, n; - char *str; - unsigned char *eol; - gz_statep state; - - /* check parameters and get internal structure */ - if (file == NULL || buf == NULL || len < 1) - return NULL; - state = (gz_statep)file; - - /* check that we're reading and that there's no error */ - if (state->mode != GZ_READ || state->err != Z_OK) - return NULL; - - /* process a skip request */ - if (state->seek) { - state->seek = 0; - if (gz_skip(state, state->skip) == -1) - return NULL; - } - - /* copy output bytes up to new line or len - 1, whichever comes first -- - append a terminating zero to the string (we don't check for a zero in - the contents, let the user worry about that) */ - str = buf; - left = (unsigned)len - 1; - if (left) do { - /* assure that something is in the output buffer */ - if (state->have == 0) { - if (gz_make(state) == -1) - return NULL; /* error */ - if (state->have == 0) { /* end of file */ - if (buf == str) /* got bupkus */ - return NULL; - break; /* got something -- return it */ - } - } - - /* look for end-of-line in current output buffer */ - n = state->have > left ? left : state->have; - eol = memchr(state->next, '\n', n); - if (eol != NULL) - n = (unsigned)(eol - state->next) + 1; - - /* copy through end-of-line, or remainder if not found */ - memcpy(buf, state->next, n); - state->have -= n; - state->next += n; - state->pos += n; - left -= n; - buf += n; - } while (left && eol == NULL); - - /* found end-of-line or out of space -- terminate string and return it */ - buf[0] = 0; - return str; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzdirect(file) - gzFile file; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return 0; - state = (gz_statep)file; - - /* check that we're reading */ - if (state->mode != GZ_READ) - return 0; - - /* if the state is not known, but we can find out, then do so (this is - mainly for right after a gzopen() or gzdopen()) */ - if (state->how == LOOK && state->have == 0) - (void)gz_head(state); - - /* return 1 if reading direct, 0 if decompressing a gzip stream */ - return state->direct; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzclose_r(file) - gzFile file; -{ - int ret; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - /* check that we're reading */ - if (state->mode != GZ_READ) - return Z_STREAM_ERROR; - - /* free memory and close file */ - if (state->size) { - inflateEnd(&(state->strm)); - free(state->out); - free(state->in); - } - gz_error(state, Z_OK, NULL); - free(state->path); - ret = close(state->fd); - free(state); - return ret ? Z_ERRNO : Z_OK; -} diff --git a/zlib/gzwrite.c b/zlib/gzwrite.c deleted file mode 100755 index e8defc6..0000000 --- a/zlib/gzwrite.c +++ /dev/null @@ -1,531 +0,0 @@ -/* gzwrite.c -- zlib functions for writing gzip files - * Copyright (C) 2004, 2005, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "gzguts.h" - -/* Local functions */ -local int gz_init OF((gz_statep)); -local int gz_comp OF((gz_statep, int)); -local int gz_zero OF((gz_statep, z_off64_t)); - -/* Initialize state for writing a gzip file. Mark initialization by setting - state->size to non-zero. Return -1 on failure or 0 on success. */ -local int gz_init(state) - gz_statep state; -{ - int ret; - z_streamp strm = &(state->strm); - - /* allocate input and output buffers */ - state->in = malloc(state->want); - state->out = malloc(state->want); - if (state->in == NULL || state->out == NULL) { - if (state->out != NULL) - free(state->out); - if (state->in != NULL) - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - - /* allocate deflate memory, set up for gzip compression */ - strm->zalloc = Z_NULL; - strm->zfree = Z_NULL; - strm->opaque = Z_NULL; - ret = deflateInit2(strm, state->level, Z_DEFLATED, - 15 + 16, 8, state->strategy); - if (ret != Z_OK) { - free(state->in); - gz_error(state, Z_MEM_ERROR, "out of memory"); - return -1; - } - - /* mark state as initialized */ - state->size = state->want; - - /* initialize write buffer */ - strm->avail_out = state->size; - strm->next_out = state->out; - state->next = strm->next_out; - return 0; -} - -/* Compress whatever is at avail_in and next_in and write to the output file. - Return -1 if there is an error writing to the output file, otherwise 0. - flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH, - then the deflate() state is reset to start a new gzip stream. */ -local int gz_comp(state, flush) - gz_statep state; - int flush; -{ - int ret, got; - unsigned have; - z_streamp strm = &(state->strm); - - /* allocate memory if this is the first time through */ - if (state->size == 0 && gz_init(state) == -1) - return -1; - - /* run deflate() on provided input until it produces no more output */ - ret = Z_OK; - do { - /* write out current buffer contents if full, or if flushing, but if - doing Z_FINISH then don't write until we get to Z_STREAM_END */ - if (strm->avail_out == 0 || (flush != Z_NO_FLUSH && - (flush != Z_FINISH || ret == Z_STREAM_END))) { - have = (unsigned)(strm->next_out - state->next); - if (have && ((got = write(state->fd, state->next, have)) < 0 || - (unsigned)got != have)) { - gz_error(state, Z_ERRNO, zstrerror()); - return -1; - } - if (strm->avail_out == 0) { - strm->avail_out = state->size; - strm->next_out = state->out; - } - state->next = strm->next_out; - } - - /* compress */ - have = strm->avail_out; - ret = deflate(strm, flush); - if (ret == Z_STREAM_ERROR) { - gz_error(state, Z_STREAM_ERROR, - "internal error: deflate stream corrupt"); - return -1; - } - have -= strm->avail_out; - } while (have); - - /* if that completed a deflate stream, allow another to start */ - if (flush == Z_FINISH) - deflateReset(strm); - - /* all done, no errors */ - return 0; -} - -/* Compress len zeros to output. Return -1 on error, 0 on success. */ -local int gz_zero(state, len) - gz_statep state; - z_off64_t len; -{ - int first; - unsigned n; - z_streamp strm = &(state->strm); - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return -1; - - /* compress len zeros (len guaranteed > 0) */ - first = 1; - while (len) { - n = GT_OFF(state->size) || (z_off64_t)state->size > len ? - (unsigned)len : state->size; - if (first) { - memset(state->in, 0, n); - first = 0; - } - strm->avail_in = n; - strm->next_in = state->in; - state->pos += n; - if (gz_comp(state, Z_NO_FLUSH) == -1) - return -1; - len -= n; - } - return 0; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzwrite(file, buf, len) - gzFile file; - voidpc buf; - unsigned len; -{ - unsigned put = len; - unsigned n; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return 0; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* since an int is returned, make sure len fits in one, otherwise return - with an error (this avoids the flaw in the interface) */ - if ((int)len < 0) { - gz_error(state, Z_BUF_ERROR, "requested length does not fit in int"); - return 0; - } - - /* if len is zero, avoid unnecessary operations */ - if (len == 0) - return 0; - - /* allocate memory if this is the first time through */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* for small len, copy to input buffer, otherwise compress directly */ - if (len < state->size) { - /* copy to input buffer, compress when full */ - do { - if (strm->avail_in == 0) - strm->next_in = state->in; - n = state->size - strm->avail_in; - if (n > len) - n = len; - memcpy(strm->next_in + strm->avail_in, buf, n); - strm->avail_in += n; - state->pos += n; - buf = (char *)buf + n; - len -= n; - if (len && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - } while (len); - } - else { - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* directly compress user buffer to file */ - strm->avail_in = len; - strm->next_in = (voidp)buf; - state->pos += len; - if (gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - } - - /* input was all buffered or compressed (put will fit in int) */ - return (int)put; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzputc(file, c) - gzFile file; - int c; -{ - unsigned char buf[1]; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return -1; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* try writing to input buffer for speed (state->size == 0 if buffer not - initialized) */ - if (strm->avail_in < state->size) { - if (strm->avail_in == 0) - strm->next_in = state->in; - strm->next_in[strm->avail_in++] = c; - state->pos++; - return c; - } - - /* no room in buffer or not initialized, use gz_write() */ - buf[0] = c; - if (gzwrite(file, buf, 1) != 1) - return -1; - return c; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzputs(file, str) - gzFile file; - const char *str; -{ - int ret; - unsigned len; - - /* write string */ - len = (unsigned)strlen(str); - ret = gzwrite(file, str, len); - return ret == 0 && len != 0 ? -1 : ret; -} - -#ifdef STDC -#include - -/* -- see zlib.h -- */ -int ZEXPORTVA gzprintf (gzFile file, const char *format, ...) -{ - int size, len; - gz_statep state; - z_streamp strm; - va_list va; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* make sure we have some buffer space */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; - va_start(va, format); -#ifdef NO_vsnprintf -# ifdef HAS_vsprintf_void - (void)vsprintf(state->in, format, va); - va_end(va); - for (len = 0; len < size; len++) - if (state->in[len] == 0) break; -# else - len = vsprintf(state->in, format, va); - va_end(va); -# endif -#else -# ifdef HAS_vsnprintf_void - (void)vsnprintf(state->in, size, format, va); - va_end(va); - len = strlen(state->in); -# else - len = vsnprintf((char *)(state->in), size, format, va); - va_end(va); -# endif -#endif - - /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) - return 0; - - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; - state->pos += len; - return len; -} - -#else /* !STDC */ - -/* -- see zlib.h -- */ -int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) - gzFile file; - const char *format; - int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; -{ - int size, len; - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return 0; - - /* make sure we have some buffer space */ - if (state->size == 0 && gz_init(state) == -1) - return 0; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return 0; - } - - /* consume whatever's left in the input buffer */ - if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1) - return 0; - - /* do the printf() into the input buffer, put length in len */ - size = (int)(state->size); - state->in[size - 1] = 0; -#ifdef NO_snprintf -# ifdef HAS_sprintf_void - sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - for (len = 0; len < size; len++) - if (state->in[len] == 0) break; -# else - len = sprintf(state->in, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#else -# ifdef HAS_snprintf_void - snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); - len = strlen(state->in); -# else - len = snprintf(state->in, size, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -# endif -#endif - - /* check that printf() results fit in buffer */ - if (len <= 0 || len >= (int)size || state->in[size - 1] != 0) - return 0; - - /* update buffer and position, defer compression until needed */ - strm->avail_in = (unsigned)len; - strm->next_in = state->in; - state->pos += len; - return len; -} - -#endif - -/* -- see zlib.h -- */ -int ZEXPORT gzflush(file, flush) - gzFile file; - int flush; -{ - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return -1; - state = (gz_statep)file; - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return Z_STREAM_ERROR; - - /* check flush parameter */ - if (flush < 0 || flush > Z_FINISH) - return Z_STREAM_ERROR; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* compress remaining data with requested flush */ - gz_comp(state, flush); - return state->err; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzsetparams(file, level, strategy) - gzFile file; - int level; - int strategy; -{ - gz_statep state; - z_streamp strm; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - strm = &(state->strm); - - /* check that we're writing and that there's no error */ - if (state->mode != GZ_WRITE || state->err != Z_OK) - return Z_STREAM_ERROR; - - /* if no change is requested, then do nothing */ - if (level == state->level && strategy == state->strategy) - return Z_OK; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - if (gz_zero(state, state->skip) == -1) - return -1; - } - - /* change compression parameters for subsequent input */ - if (state->size) { - /* flush previous input with previous parameters before changing */ - if (strm->avail_in && gz_comp(state, Z_PARTIAL_FLUSH) == -1) - return state->err; - deflateParams(strm, level, strategy); - } - state->level = level; - state->strategy = strategy; - return Z_OK; -} - -/* -- see zlib.h -- */ -int ZEXPORT gzclose_w(file) - gzFile file; -{ - int ret = 0; - gz_statep state; - - /* get internal structure */ - if (file == NULL) - return Z_STREAM_ERROR; - state = (gz_statep)file; - - /* check that we're writing */ - if (state->mode != GZ_WRITE) - return Z_STREAM_ERROR; - - /* check for seek request */ - if (state->seek) { - state->seek = 0; - ret += gz_zero(state, state->skip); - } - - /* flush, free memory, and close file */ - ret += gz_comp(state, Z_FINISH); - (void)deflateEnd(&(state->strm)); - free(state->out); - free(state->in); - gz_error(state, Z_OK, NULL); - free(state->path); - ret += close(state->fd); - free(state); - return ret ? Z_ERRNO : Z_OK; -} diff --git a/zlib/infback.c b/zlib/infback.c deleted file mode 100755 index af3a8c9..0000000 --- a/zlib/infback.c +++ /dev/null @@ -1,632 +0,0 @@ -/* infback.c -- inflate using a call-back interface - * Copyright (C) 1995-2009 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - This code is largely copied from inflate.c. Normally either infback.o or - inflate.o would be linked into an application--not both. The interface - with inffast.c is retained so that optimized assembler-coded versions of - inflate_fast() can be used with either inflate.c or infback.c. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); - -/* - strm provides memory allocation functions in zalloc and zfree, or - Z_NULL to use the library memory allocation functions. - - windowBits is in the range 8..15, and window is a user-supplied - window and output buffer that is 2**windowBits bytes. - */ -int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) -z_streamp strm; -int windowBits; -unsigned char FAR *window; -const char *version; -int stream_size; -{ - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL || window == Z_NULL || - windowBits < 8 || windowBits > 15) - return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - state = (struct inflate_state FAR *)ZALLOC(strm, 1, - sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - state->dmax = 32768U; - state->wbits = windowBits; - state->wsize = 1U << windowBits; - state->window = window; - state->wnext = 0; - state->whave = 0; - return Z_OK; -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -/* Macros for inflateBack(): */ - -/* Load returned state from inflate_fast() */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Set state from registers for inflate_fast() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Assure that some input is available. If input is requested, but denied, - then return a Z_BUF_ERROR from inflateBack(). */ -#define PULL() \ - do { \ - if (have == 0) { \ - have = in(in_desc, &next); \ - if (have == 0) { \ - next = Z_NULL; \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflateBack() - with an error if there is no input available. */ -#define PULLBYTE() \ - do { \ - PULL(); \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflateBack() with - an error. */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* Assure that some output space is available, by writing out the window - if it's full. If the write fails, return from inflateBack() with a - Z_BUF_ERROR. */ -#define ROOM() \ - do { \ - if (left == 0) { \ - put = state->window; \ - left = state->wsize; \ - state->whave = left; \ - if (out(out_desc, put, left)) { \ - ret = Z_BUF_ERROR; \ - goto inf_leave; \ - } \ - } \ - } while (0) - -/* - strm provides the memory allocation functions and window buffer on input, - and provides information on the unused input on return. For Z_DATA_ERROR - returns, strm will also provide an error message. - - in() and out() are the call-back input and output functions. When - inflateBack() needs more input, it calls in(). When inflateBack() has - filled the window with output, or when it completes with data in the - window, it calls out() to write out the data. The application must not - change the provided input until in() is called again or inflateBack() - returns. The application must not change the window/output buffer until - inflateBack() returns. - - in() and out() are called with a descriptor parameter provided in the - inflateBack() call. This parameter can be a structure that provides the - information required to do the read or write, as well as accumulated - information on the input and output such as totals and check values. - - in() should return zero on failure. out() should return non-zero on - failure. If either in() or out() fails, than inflateBack() returns a - Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it - was in() or out() that caused in the error. Otherwise, inflateBack() - returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format - error, or Z_MEM_ERROR if it could not allocate memory for the state. - inflateBack() can also return Z_STREAM_ERROR if the input parameters - are not correct, i.e. strm is Z_NULL or the state was not initialized. - */ -int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) -z_streamp strm; -in_func in; -void FAR *in_desc; -out_func out; -void FAR *out_desc; -{ - struct inflate_state FAR *state; - unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code here; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - /* Check that the strm exists and that the state was initialized */ - if (strm == Z_NULL || strm->state == Z_NULL) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* Reset the state */ - strm->msg = Z_NULL; - state->mode = TYPE; - state->last = 0; - state->whave = 0; - next = strm->next_in; - have = next != Z_NULL ? strm->avail_in : 0; - hold = 0; - bits = 0; - put = state->window; - left = state->wsize; - - /* Inflate until end of block marked as last */ - for (;;) - switch (state->mode) { - case TYPE: - /* determine and dispatch block type */ - if (state->last) { - BYTEBITS(); - state->mode = DONE; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN; /* decode codes */ - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - - case STORED: - /* get and verify stored block length */ - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - - /* copy stored block from input to output */ - while (state->length != 0) { - copy = state->length; - PULL(); - ROOM(); - if (copy > have) copy = have; - if (copy > left) copy = left; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - - case TABLE: - /* get dynamic table entries descriptor */ - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - - /* get code length code lengths (not a typo) */ - state->have = 0; - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - - /* get length and distance code code lengths */ - state->have = 0; - while (state->have < state->nlen + state->ndist) { - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.val < 16) { - NEEDBITS(here.bits); - DROPBITS(here.bits); - state->lens[state->have++] = here.val; - } - else { - if (here.val == 16) { - NEEDBITS(here.bits + 2); - DROPBITS(here.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = (unsigned)(state->lens[state->have - 1]); - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (here.val == 17) { - NEEDBITS(here.bits + 3); - DROPBITS(here.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(here.bits + 7); - DROPBITS(here.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* check for end-of-block code (better have one) */ - if (state->lens[256] == 0) { - strm->msg = (char *)"invalid code -- missing end-of-block"; - state->mode = BAD; - break; - } - - /* build code tables -- note: do not change the lenbits or distbits - values here (9 and 6) without reading the comments in inftrees.h - concerning the ENOUGH constants, which depend on those values */ - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (code const FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN; - - case LEN: - /* use inflate_fast() if we have enough input and output */ - if (have >= 6 && left >= 258) { - RESTORE(); - if (state->whave < state->wsize) - state->whave = state->wsize - left; - inflate_fast(strm, state->wsize); - LOAD(); - break; - } - - /* get a literal, length, or end-of-block code */ - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.op && (here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(here.bits); - state->length = (unsigned)here.val; - - /* process literal */ - if (here.op == 0) { - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - ROOM(); - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - } - - /* process end of block */ - if (here.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - - /* invalid code */ - if (here.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - - /* length code -- get extra bits, if any */ - state->extra = (unsigned)(here.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - - /* get distance code */ - for (;;) { - here = state->distcode[BITS(state->distbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if ((here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - } - DROPBITS(here.bits); - if (here.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)here.val; - - /* get distance extra bits, if any */ - state->extra = (unsigned)(here.op) & 15; - if (state->extra != 0) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - } - if (state->offset > state->wsize - (state->whave < state->wsize ? - left : 0)) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - - /* copy match from window to output */ - do { - ROOM(); - copy = state->wsize - state->offset; - if (copy < left) { - from = put + copy; - copy = left - copy; - } - else { - from = put - state->offset; - copy = left; - } - if (copy > state->length) copy = state->length; - state->length -= copy; - left -= copy; - do { - *put++ = *from++; - } while (--copy); - } while (state->length != 0); - break; - - case DONE: - /* inflate stream terminated properly -- write leftover output */ - ret = Z_STREAM_END; - if (left < state->wsize) { - if (out(out_desc, state->window, state->wsize - left)) - ret = Z_BUF_ERROR; - } - goto inf_leave; - - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - - default: /* can't happen, but makes compilers happy */ - ret = Z_STREAM_ERROR; - goto inf_leave; - } - - /* Return unused input */ - inf_leave: - strm->next_in = next; - strm->avail_in = have; - return ret; -} - -int ZEXPORT inflateBackEnd(strm) -z_streamp strm; -{ - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} diff --git a/zlib/inffast.c b/zlib/inffast.c deleted file mode 100755 index 2f1d60b..0000000 --- a/zlib/inffast.c +++ /dev/null @@ -1,340 +0,0 @@ -/* inffast.c -- fast decoding - * Copyright (C) 1995-2008, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifndef ASMINF - -/* Allow machine dependent optimization for post-increment or pre-increment. - Based on testing to date, - Pre-increment preferred for: - - PowerPC G3 (Adler) - - MIPS R5000 (Randers-Pehrson) - Post-increment preferred for: - - none - No measurable difference: - - Pentium III (Anderson) - - M68060 (Nikl) - */ -#ifdef POSTINC -# define OFF 0 -# define PUP(a) *(a)++ -#else -# define OFF 1 -# define PUP(a) *++(a) -#endif - -/* - Decode literal, length, and distance codes and write out the resulting - literal and match bytes until either not enough input or output is - available, an end-of-block is encountered, or a data error is encountered. - When large enough input and output buffers are supplied to inflate(), for - example, a 16K input buffer and a 64K output buffer, more than 95% of the - inflate execution time is spent in this routine. - - Entry assumptions: - - state->mode == LEN - strm->avail_in >= 6 - strm->avail_out >= 258 - start >= strm->avail_out - state->bits < 8 - - On return, state->mode is one of: - - LEN -- ran out of enough output space or enough available input - TYPE -- reached end of block code, inflate() to interpret next block - BAD -- error in block data - - Notes: - - - The maximum input bits used by a length/distance pair is 15 bits for the - length code, 5 bits for the length extra, 15 bits for the distance code, - and 13 bits for the distance extra. This totals 48 bits, or six bytes. - Therefore if strm->avail_in >= 6, then there is enough input to avoid - checking for available input while decoding. - - - The maximum bytes that a single length/distance pair can output is 258 - bytes, which is the maximum length that can be coded. inflate_fast() - requires strm->avail_out >= 258 for each loop to avoid checking for - output space. - */ -void ZLIB_INTERNAL inflate_fast(strm, start) -z_streamp strm; -unsigned start; /* inflate()'s starting value for strm->avail_out */ -{ - struct inflate_state FAR *state; - unsigned char FAR *in; /* local strm->next_in */ - unsigned char FAR *last; /* while in < last, enough input available */ - unsigned char FAR *out; /* local strm->next_out */ - unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ - unsigned char FAR *end; /* while out < end, enough space available */ -#ifdef INFLATE_STRICT - unsigned dmax; /* maximum distance from zlib header */ -#endif - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned wnext; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ - unsigned long hold; /* local strm->hold */ - unsigned bits; /* local strm->bits */ - code const FAR *lcode; /* local strm->lencode */ - code const FAR *dcode; /* local strm->distcode */ - unsigned lmask; /* mask for first level of length codes */ - unsigned dmask; /* mask for first level of distance codes */ - code here; /* retrieved table entry */ - unsigned op; /* code bits, operation, extra bits, or */ - /* window position, window bytes to copy */ - unsigned len; /* match length, unused bytes */ - unsigned dist; /* match distance */ - unsigned char FAR *from; /* where to copy match from */ - - /* copy state to local variables */ - state = (struct inflate_state FAR *)strm->state; - in = strm->next_in - OFF; - last = in + (strm->avail_in - 5); - out = strm->next_out - OFF; - beg = out - (start - strm->avail_out); - end = out + (strm->avail_out - 257); -#ifdef INFLATE_STRICT - dmax = state->dmax; -#endif - wsize = state->wsize; - whave = state->whave; - wnext = state->wnext; - window = state->window; - hold = state->hold; - bits = state->bits; - lcode = state->lencode; - dcode = state->distcode; - lmask = (1U << state->lenbits) - 1; - dmask = (1U << state->distbits) - 1; - - /* decode literals and length/distances until end-of-block or not enough - input data or output space */ - do { - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - here = lcode[hold & lmask]; - dolen: - op = (unsigned)(here.bits); - hold >>= op; - bits -= op; - op = (unsigned)(here.op); - if (op == 0) { /* literal */ - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - PUP(out) = (unsigned char)(here.val); - } - else if (op & 16) { /* length base */ - len = (unsigned)(here.val); - op &= 15; /* number of extra bits */ - if (op) { - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - len += (unsigned)hold & ((1U << op) - 1); - hold >>= op; - bits -= op; - } - Tracevv((stderr, "inflate: length %u\n", len)); - if (bits < 15) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - here = dcode[hold & dmask]; - dodist: - op = (unsigned)(here.bits); - hold >>= op; - bits -= op; - op = (unsigned)(here.op); - if (op & 16) { /* distance base */ - dist = (unsigned)(here.val); - op &= 15; /* number of extra bits */ - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - if (bits < op) { - hold += (unsigned long)(PUP(in)) << bits; - bits += 8; - } - } - dist += (unsigned)hold & ((1U << op) - 1); -#ifdef INFLATE_STRICT - if (dist > dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - hold >>= op; - bits -= op; - Tracevv((stderr, "inflate: distance %u\n", dist)); - op = (unsigned)(out - beg); /* max distance in output */ - if (dist > op) { /* see if copy from window */ - op = dist - op; /* distance back in window */ - if (op > whave) { - if (state->sane) { - strm->msg = - (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - if (len <= op - whave) { - do { - PUP(out) = 0; - } while (--len); - continue; - } - len -= op - whave; - do { - PUP(out) = 0; - } while (--op > whave); - if (op == 0) { - from = out - dist; - do { - PUP(out) = PUP(from); - } while (--len); - continue; - } -#endif - } - from = window - OFF; - if (wnext == 0) { /* very common case */ - from += wsize - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - else if (wnext < op) { /* wrap around window */ - from += wsize + wnext - op; - op -= wnext; - if (op < len) { /* some from end of window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = window - OFF; - if (wnext < len) { /* some from start of window */ - op = wnext; - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - } - else { /* contiguous in window */ - from += wnext - op; - if (op < len) { /* some from window */ - len -= op; - do { - PUP(out) = PUP(from); - } while (--op); - from = out - dist; /* rest from output */ - } - } - while (len > 2) { - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - else { - from = out - dist; /* copy direct from output */ - do { /* minimum length is three */ - PUP(out) = PUP(from); - PUP(out) = PUP(from); - PUP(out) = PUP(from); - len -= 3; - } while (len > 2); - if (len) { - PUP(out) = PUP(from); - if (len > 1) - PUP(out) = PUP(from); - } - } - } - else if ((op & 64) == 0) { /* 2nd level distance code */ - here = dcode[here.val + (hold & ((1U << op) - 1))]; - goto dodist; - } - else { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - } - else if ((op & 64) == 0) { /* 2nd level length code */ - here = lcode[here.val + (hold & ((1U << op) - 1))]; - goto dolen; - } - else if (op & 32) { /* end-of-block */ - Tracevv((stderr, "inflate: end of block\n")); - state->mode = TYPE; - break; - } - else { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - } while (in < last && out < end); - - /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ - len = bits >> 3; - in -= len; - bits -= len << 3; - hold &= (1U << bits) - 1; - - /* update state and return */ - strm->next_in = in + OFF; - strm->next_out = out + OFF; - strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); - strm->avail_out = (unsigned)(out < end ? - 257 + (end - out) : 257 - (out - end)); - state->hold = hold; - state->bits = bits; - return; -} - -/* - inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): - - Using bit fields for code structure - - Different op definition to avoid & for extra bits (do & for table bits) - - Three separate decoding do-loops for direct, window, and wnext == 0 - - Special case for distance > 1 copies to do overlapped load and store copy - - Explicit branch predictions (based on measured branch probabilities) - - Deferring match copy and interspersed it with decoding subsequent codes - - Swapping literal/length else - - Swapping window/direct else - - Larger unrolled copy loops (three is about right) - - Moving len -= 3 statement into middle of loop - */ - -#endif /* !ASMINF */ diff --git a/zlib/inffast.h b/zlib/inffast.h deleted file mode 100755 index e5c1aa4..0000000 --- a/zlib/inffast.h +++ /dev/null @@ -1,11 +0,0 @@ -/* inffast.h -- header to use inffast.c - * Copyright (C) 1995-2003, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start)); diff --git a/zlib/inffixed.h b/zlib/inffixed.h deleted file mode 100755 index 75ed4b5..0000000 --- a/zlib/inffixed.h +++ /dev/null @@ -1,94 +0,0 @@ - /* inffixed.h -- table for decoding fixed codes - * Generated automatically by makefixed(). - */ - - /* WARNING: this file should *not* be used by applications. It - is part of the implementation of the compression library and - is subject to change. Applications should only use zlib.h. - */ - - static const code lenfix[512] = { - {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, - {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, - {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, - {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, - {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, - {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, - {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, - {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, - {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, - {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, - {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, - {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, - {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, - {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, - {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, - {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, - {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, - {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, - {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, - {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, - {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, - {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, - {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, - {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, - {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, - {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, - {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, - {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, - {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, - {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, - {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, - {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, - {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, - {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, - {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, - {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, - {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, - {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, - {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, - {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, - {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, - {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, - {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, - {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, - {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, - {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, - {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, - {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, - {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, - {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, - {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, - {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, - {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, - {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, - {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, - {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, - {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, - {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, - {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, - {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, - {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, - {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, - {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, - {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, - {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, - {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, - {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, - {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, - {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, - {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, - {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, - {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, - {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, - {0,9,255} - }; - - static const code distfix[32] = { - {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, - {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, - {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, - {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, - {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, - {22,5,193},{64,5,0} - }; diff --git a/zlib/inflate.c b/zlib/inflate.c deleted file mode 100755 index a8431ab..0000000 --- a/zlib/inflate.c +++ /dev/null @@ -1,1480 +0,0 @@ -/* inflate.c -- zlib decompression - * Copyright (C) 1995-2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * Change history: - * - * 1.2.beta0 24 Nov 2002 - * - First version -- complete rewrite of inflate to simplify code, avoid - * creation of window when not needed, minimize use of window when it is - * needed, make inffast.c even faster, implement gzip decoding, and to - * improve code readability and style over the previous zlib inflate code - * - * 1.2.beta1 25 Nov 2002 - * - Use pointers for available input and output checking in inffast.c - * - Remove input and output counters in inffast.c - * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 - * - Remove unnecessary second byte pull from length extra in inffast.c - * - Unroll direct copy to three copies per loop in inffast.c - * - * 1.2.beta2 4 Dec 2002 - * - Change external routine names to reduce potential conflicts - * - Correct filename to inffixed.h for fixed tables in inflate.c - * - Make hbuf[] unsigned char to match parameter type in inflate.c - * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) - * to avoid negation problem on Alphas (64 bit) in inflate.c - * - * 1.2.beta3 22 Dec 2002 - * - Add comments on state->bits assertion in inffast.c - * - Add comments on op field in inftrees.h - * - Fix bug in reuse of allocated window after inflateReset() - * - Remove bit fields--back to byte structure for speed - * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths - * - Change post-increments to pre-increments in inflate_fast(), PPC biased? - * - Add compile time option, POSTINC, to use post-increments instead (Intel?) - * - Make MATCH copy in inflate() much faster for when inflate_fast() not used - * - Use local copies of stream next and avail values, as well as local bit - * buffer and bit count in inflate()--for speed when inflate_fast() not used - * - * 1.2.beta4 1 Jan 2003 - * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings - * - Move a comment on output buffer sizes from inffast.c to inflate.c - * - Add comments in inffast.c to introduce the inflate_fast() routine - * - Rearrange window copies in inflate_fast() for speed and simplification - * - Unroll last copy for window match in inflate_fast() - * - Use local copies of window variables in inflate_fast() for speed - * - Pull out common wnext == 0 case for speed in inflate_fast() - * - Make op and len in inflate_fast() unsigned for consistency - * - Add FAR to lcode and dcode declarations in inflate_fast() - * - Simplified bad distance check in inflate_fast() - * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new - * source file infback.c to provide a call-back interface to inflate for - * programs like gzip and unzip -- uses window as output buffer to avoid - * window copying - * - * 1.2.beta5 1 Jan 2003 - * - Improved inflateBack() interface to allow the caller to provide initial - * input in strm. - * - Fixed stored blocks bug in inflateBack() - * - * 1.2.beta6 4 Jan 2003 - * - Added comments in inffast.c on effectiveness of POSTINC - * - Typecasting all around to reduce compiler warnings - * - Changed loops from while (1) or do {} while (1) to for (;;), again to - * make compilers happy - * - Changed type of window in inflateBackInit() to unsigned char * - * - * 1.2.beta7 27 Jan 2003 - * - Changed many types to unsigned or unsigned short to avoid warnings - * - Added inflateCopy() function - * - * 1.2.0 9 Mar 2003 - * - Changed inflateBack() interface to provide separate opaque descriptors - * for the in() and out() functions - * - Changed inflateBack() argument and in_func typedef to swap the length - * and buffer address return values for the input function - * - Check next_in and next_out for Z_NULL on entry to inflate() - * - * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. - */ - -#include "zutil.h" -#include "inftrees.h" -#include "inflate.h" -#include "inffast.h" - -#ifdef MAKEFIXED -# ifndef BUILDFIXED -# define BUILDFIXED -# endif -#endif - -/* function prototypes */ -local void fixedtables OF((struct inflate_state FAR *state)); -local int updatewindow OF((z_streamp strm, unsigned out)); -#ifdef BUILDFIXED - void makefixed OF((void)); -#endif -local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, - unsigned len)); - -int ZEXPORT inflateReset(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - strm->total_in = strm->total_out = state->total = 0; - strm->msg = Z_NULL; - strm->adler = 1; /* to support ill-conceived Java test suite */ - state->mode = HEAD; - state->last = 0; - state->havedict = 0; - state->dmax = 32768U; - state->head = Z_NULL; - state->wsize = 0; - state->whave = 0; - state->wnext = 0; - state->hold = 0; - state->bits = 0; - state->lencode = state->distcode = state->next = state->codes; - state->sane = 1; - state->back = -1; - Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} - -int ZEXPORT inflateReset2(strm, windowBits) -z_streamp strm; -int windowBits; -{ - int wrap; - struct inflate_state FAR *state; - - /* get the state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - - /* extract wrap request from windowBits parameter */ - if (windowBits < 0) { - wrap = 0; - windowBits = -windowBits; - } - else { - wrap = (windowBits >> 4) + 1; -#ifdef GUNZIP - if (windowBits < 48) - windowBits &= 15; -#endif - } - - /* set number of window bits, free window if different */ - if (windowBits && (windowBits < 8 || windowBits > 15)) - return Z_STREAM_ERROR; - if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) { - ZFREE(strm, state->window); - state->window = Z_NULL; - } - - /* update state and reset the rest of it */ - state->wrap = wrap; - state->wbits = (unsigned)windowBits; - return inflateReset(strm); -} - -int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) -z_streamp strm; -int windowBits; -const char *version; -int stream_size; -{ - int ret; - struct inflate_state FAR *state; - - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != (int)(sizeof(z_stream))) - return Z_VERSION_ERROR; - if (strm == Z_NULL) return Z_STREAM_ERROR; - strm->msg = Z_NULL; /* in case we return an error */ - if (strm->zalloc == (alloc_func)0) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; - } - if (strm->zfree == (free_func)0) strm->zfree = zcfree; - state = (struct inflate_state FAR *) - ZALLOC(strm, 1, sizeof(struct inflate_state)); - if (state == Z_NULL) return Z_MEM_ERROR; - Tracev((stderr, "inflate: allocated\n")); - strm->state = (struct internal_state FAR *)state; - state->window = Z_NULL; - ret = inflateReset2(strm, windowBits); - if (ret != Z_OK) { - ZFREE(strm, state); - strm->state = Z_NULL; - } - return ret; -} - -int ZEXPORT inflateInit_(strm, version, stream_size) -z_streamp strm; -const char *version; -int stream_size; -{ - return inflateInit2_(strm, DEF_WBITS, version, stream_size); -} - -int ZEXPORT inflatePrime(strm, bits, value) -z_streamp strm; -int bits; -int value; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (bits < 0) { - state->hold = 0; - state->bits = 0; - return Z_OK; - } - if (bits > 16 || state->bits + bits > 32) return Z_STREAM_ERROR; - value &= (1L << bits) - 1; - state->hold += value << state->bits; - state->bits += bits; - return Z_OK; -} - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -local void fixedtables(state) -struct inflate_state FAR *state; -{ -#ifdef BUILDFIXED - static int virgin = 1; - static code *lenfix, *distfix; - static code fixed[544]; - - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - unsigned sym, bits; - static code *next; - - /* literal/length table */ - sym = 0; - while (sym < 144) state->lens[sym++] = 8; - while (sym < 256) state->lens[sym++] = 9; - while (sym < 280) state->lens[sym++] = 7; - while (sym < 288) state->lens[sym++] = 8; - next = fixed; - lenfix = next; - bits = 9; - inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); - - /* distance table */ - sym = 0; - while (sym < 32) state->lens[sym++] = 5; - distfix = next; - bits = 5; - inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); - - /* do this just once */ - virgin = 0; - } -#else /* !BUILDFIXED */ -# include "inffixed.h" -#endif /* BUILDFIXED */ - state->lencode = lenfix; - state->lenbits = 9; - state->distcode = distfix; - state->distbits = 5; -} - -#ifdef MAKEFIXED -#include - -/* - Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also - defines BUILDFIXED, so the tables are built on the fly. makefixed() writes - those tables to stdout, which would be piped to inffixed.h. A small program - can simply call makefixed to do this: - - void makefixed(void); - - int main(void) - { - makefixed(); - return 0; - } - - Then that can be linked with zlib built with MAKEFIXED defined and run: - - a.out > inffixed.h - */ -void makefixed() -{ - unsigned low, size; - struct inflate_state state; - - fixedtables(&state); - puts(" /* inffixed.h -- table for decoding fixed codes"); - puts(" * Generated automatically by makefixed()."); - puts(" */"); - puts(""); - puts(" /* WARNING: this file should *not* be used by applications."); - puts(" It is part of the implementation of this library and is"); - puts(" subject to change. Applications should only use zlib.h."); - puts(" */"); - puts(""); - size = 1U << 9; - printf(" static const code lenfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 7) == 0) printf("\n "); - printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, - state.lencode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); - size = 1U << 5; - printf("\n static const code distfix[%u] = {", size); - low = 0; - for (;;) { - if ((low % 6) == 0) printf("\n "); - printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, - state.distcode[low].val); - if (++low == size) break; - putchar(','); - } - puts("\n };"); -} -#endif /* MAKEFIXED */ - -/* - Update the window with the last wsize (normally 32K) bytes written before - returning. If window does not exist yet, create it. This is only called - when a window is already in use, or when output has been written during this - inflate call, but the end of the deflate stream has not been reached yet. - It is also called to create a window for dictionary data when a dictionary - is loaded. - - Providing output buffers larger than 32K to inflate() should provide a speed - advantage, since only the last 32K of output is copied to the sliding window - upon return from inflate(), and since all distances after the first 32K of - output will fall in the output data, making match copies simpler and faster. - The advantage may be dependent on the size of the processor's data caches. - */ -local int updatewindow(strm, out) -z_streamp strm; -unsigned out; -{ - struct inflate_state FAR *state; - unsigned copy, dist; - - state = (struct inflate_state FAR *)strm->state; - - /* if it hasn't been done already, allocate space for the window */ - if (state->window == Z_NULL) { - state->window = (unsigned char FAR *) - ZALLOC(strm, 1U << state->wbits, - sizeof(unsigned char)); - if (state->window == Z_NULL) return 1; - } - - /* if window not in use yet, initialize */ - if (state->wsize == 0) { - state->wsize = 1U << state->wbits; - state->wnext = 0; - state->whave = 0; - } - - /* copy state->wsize or less output bytes into the circular window */ - copy = out - strm->avail_out; - if (copy >= state->wsize) { - zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); - state->wnext = 0; - state->whave = state->wsize; - } - else { - dist = state->wsize - state->wnext; - if (dist > copy) dist = copy; - zmemcpy(state->window + state->wnext, strm->next_out - copy, dist); - copy -= dist; - if (copy) { - zmemcpy(state->window, strm->next_out - copy, copy); - state->wnext = copy; - state->whave = state->wsize; - } - else { - state->wnext += dist; - if (state->wnext == state->wsize) state->wnext = 0; - if (state->whave < state->wsize) state->whave += dist; - } - } - return 0; -} - -/* Macros for inflate(): */ - -/* check function to use adler32() for zlib or crc32() for gzip */ -#ifdef GUNZIP -# define UPDATE(check, buf, len) \ - (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) -#else -# define UPDATE(check, buf, len) adler32(check, buf, len) -#endif - -/* check macros for header crc */ -#ifdef GUNZIP -# define CRC2(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - check = crc32(check, hbuf, 2); \ - } while (0) - -# define CRC4(check, word) \ - do { \ - hbuf[0] = (unsigned char)(word); \ - hbuf[1] = (unsigned char)((word) >> 8); \ - hbuf[2] = (unsigned char)((word) >> 16); \ - hbuf[3] = (unsigned char)((word) >> 24); \ - check = crc32(check, hbuf, 4); \ - } while (0) -#endif - -/* Load registers with state in inflate() for speed */ -#define LOAD() \ - do { \ - put = strm->next_out; \ - left = strm->avail_out; \ - next = strm->next_in; \ - have = strm->avail_in; \ - hold = state->hold; \ - bits = state->bits; \ - } while (0) - -/* Restore state from registers in inflate() */ -#define RESTORE() \ - do { \ - strm->next_out = put; \ - strm->avail_out = left; \ - strm->next_in = next; \ - strm->avail_in = have; \ - state->hold = hold; \ - state->bits = bits; \ - } while (0) - -/* Clear the input bit accumulator */ -#define INITBITS() \ - do { \ - hold = 0; \ - bits = 0; \ - } while (0) - -/* Get a byte of input into the bit accumulator, or return from inflate() - if there is no input available. */ -#define PULLBYTE() \ - do { \ - if (have == 0) goto inf_leave; \ - have--; \ - hold += (unsigned long)(*next++) << bits; \ - bits += 8; \ - } while (0) - -/* Assure that there are at least n bits in the bit accumulator. If there is - not enough available input to do that, then return from inflate(). */ -#define NEEDBITS(n) \ - do { \ - while (bits < (unsigned)(n)) \ - PULLBYTE(); \ - } while (0) - -/* Return the low n bits of the bit accumulator (n < 16) */ -#define BITS(n) \ - ((unsigned)hold & ((1U << (n)) - 1)) - -/* Remove n bits from the bit accumulator */ -#define DROPBITS(n) \ - do { \ - hold >>= (n); \ - bits -= (unsigned)(n); \ - } while (0) - -/* Remove zero to seven bits as needed to go to a byte boundary */ -#define BYTEBITS() \ - do { \ - hold >>= bits & 7; \ - bits -= bits & 7; \ - } while (0) - -/* Reverse the bytes in a 32-bit value */ -#define REVERSE(q) \ - ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ - (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) - -/* - inflate() uses a state machine to process as much input data and generate as - much output data as possible before returning. The state machine is - structured roughly as follows: - - for (;;) switch (state) { - ... - case STATEn: - if (not enough input data or output space to make progress) - return; - ... make progress ... - state = STATEm; - break; - ... - } - - so when inflate() is called again, the same case is attempted again, and - if the appropriate resources are provided, the machine proceeds to the - next state. The NEEDBITS() macro is usually the way the state evaluates - whether it can proceed or should return. NEEDBITS() does the return if - the requested bits are not available. The typical use of the BITS macros - is: - - NEEDBITS(n); - ... do something with BITS(n) ... - DROPBITS(n); - - where NEEDBITS(n) either returns from inflate() if there isn't enough - input left to load n bits into the accumulator, or it continues. BITS(n) - gives the low n bits in the accumulator. When done, DROPBITS(n) drops - the low n bits off the accumulator. INITBITS() clears the accumulator - and sets the number of available bits to zero. BYTEBITS() discards just - enough bits to put the accumulator on a byte boundary. After BYTEBITS() - and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. - - NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return - if there is no input available. The decoding of variable length codes uses - PULLBYTE() directly in order to pull just enough bytes to decode the next - code, and no more. - - Some states loop until they get enough input, making sure that enough - state information is maintained to continue the loop where it left off - if NEEDBITS() returns in the loop. For example, want, need, and keep - would all have to actually be part of the saved state in case NEEDBITS() - returns: - - case STATEw: - while (want < need) { - NEEDBITS(n); - keep[want++] = BITS(n); - DROPBITS(n); - } - state = STATEx; - case STATEx: - - As shown above, if the next state is also the next case, then the break - is omitted. - - A state may also return if there is not enough output space available to - complete that state. Those states are copying stored data, writing a - literal byte, and copying a matching string. - - When returning, a "goto inf_leave" is used to update the total counters, - update the check value, and determine whether any progress has been made - during that inflate() call in order to return the proper return code. - Progress is defined as a change in either strm->avail_in or strm->avail_out. - When there is a window, goto inf_leave will update the window with the last - output written. If a goto inf_leave occurs in the middle of decompression - and there is no window currently, goto inf_leave will create one and copy - output to the window for the next call of inflate(). - - In this implementation, the flush parameter of inflate() only affects the - return code (per zlib.h). inflate() always writes as much as possible to - strm->next_out, given the space available and the provided input--the effect - documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers - the allocation of and copying into a sliding window until necessary, which - provides the effect documented in zlib.h for Z_FINISH when the entire input - stream available. So the only thing the flush parameter actually does is: - when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it - will return Z_BUF_ERROR if it has not reached the end of the stream. - */ - -int ZEXPORT inflate(strm, flush) -z_streamp strm; -int flush; -{ - struct inflate_state FAR *state; - unsigned char FAR *next; /* next input */ - unsigned char FAR *put; /* next output */ - unsigned have, left; /* available input and output */ - unsigned long hold; /* bit buffer */ - unsigned bits; /* bits in bit buffer */ - unsigned in, out; /* save starting available input and output */ - unsigned copy; /* number of stored or match bytes to copy */ - unsigned char FAR *from; /* where to copy match bytes from */ - code here; /* current decoding table entry */ - code last; /* parent table entry */ - unsigned len; /* length to copy for repeats, bits to drop */ - int ret; /* return code */ -#ifdef GUNZIP - unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ -#endif - static const unsigned short order[19] = /* permutation of code lengths */ - {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - - if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0)) - return Z_STREAM_ERROR; - - state = (struct inflate_state FAR *)strm->state; - if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ - LOAD(); - in = have; - out = left; - ret = Z_OK; - for (;;) - switch (state->mode) { - case HEAD: - if (state->wrap == 0) { - state->mode = TYPEDO; - break; - } - NEEDBITS(16); -#ifdef GUNZIP - if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ - state->check = crc32(0L, Z_NULL, 0); - CRC2(state->check, hold); - INITBITS(); - state->mode = FLAGS; - break; - } - state->flags = 0; /* expect zlib header */ - if (state->head != Z_NULL) - state->head->done = -1; - if (!(state->wrap & 1) || /* check if zlib header allowed */ -#else - if ( -#endif - ((BITS(8) << 8) + (hold >> 8)) % 31) { - strm->msg = (char *)"incorrect header check"; - state->mode = BAD; - break; - } - if (BITS(4) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - DROPBITS(4); - len = BITS(4) + 8; - if (state->wbits == 0) - state->wbits = len; - else if (len > state->wbits) { - strm->msg = (char *)"invalid window size"; - state->mode = BAD; - break; - } - state->dmax = 1U << len; - Tracev((stderr, "inflate: zlib header ok\n")); - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = hold & 0x200 ? DICTID : TYPE; - INITBITS(); - break; -#ifdef GUNZIP - case FLAGS: - NEEDBITS(16); - state->flags = (int)(hold); - if ((state->flags & 0xff) != Z_DEFLATED) { - strm->msg = (char *)"unknown compression method"; - state->mode = BAD; - break; - } - if (state->flags & 0xe000) { - strm->msg = (char *)"unknown header flags set"; - state->mode = BAD; - break; - } - if (state->head != Z_NULL) - state->head->text = (int)((hold >> 8) & 1); - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = TIME; - case TIME: - NEEDBITS(32); - if (state->head != Z_NULL) - state->head->time = hold; - if (state->flags & 0x0200) CRC4(state->check, hold); - INITBITS(); - state->mode = OS; - case OS: - NEEDBITS(16); - if (state->head != Z_NULL) { - state->head->xflags = (int)(hold & 0xff); - state->head->os = (int)(hold >> 8); - } - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - state->mode = EXLEN; - case EXLEN: - if (state->flags & 0x0400) { - NEEDBITS(16); - state->length = (unsigned)(hold); - if (state->head != Z_NULL) - state->head->extra_len = (unsigned)hold; - if (state->flags & 0x0200) CRC2(state->check, hold); - INITBITS(); - } - else if (state->head != Z_NULL) - state->head->extra = Z_NULL; - state->mode = EXTRA; - case EXTRA: - if (state->flags & 0x0400) { - copy = state->length; - if (copy > have) copy = have; - if (copy) { - if (state->head != Z_NULL && - state->head->extra != Z_NULL) { - len = state->head->extra_len - state->length; - zmemcpy(state->head->extra + len, next, - len + copy > state->head->extra_max ? - state->head->extra_max - len : copy); - } - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - state->length -= copy; - } - if (state->length) goto inf_leave; - } - state->length = 0; - state->mode = NAME; - case NAME: - if (state->flags & 0x0800) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->name != Z_NULL && - state->length < state->head->name_max) - state->head->name[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->name = Z_NULL; - state->length = 0; - state->mode = COMMENT; - case COMMENT: - if (state->flags & 0x1000) { - if (have == 0) goto inf_leave; - copy = 0; - do { - len = (unsigned)(next[copy++]); - if (state->head != Z_NULL && - state->head->comment != Z_NULL && - state->length < state->head->comm_max) - state->head->comment[state->length++] = len; - } while (len && copy < have); - if (state->flags & 0x0200) - state->check = crc32(state->check, next, copy); - have -= copy; - next += copy; - if (len) goto inf_leave; - } - else if (state->head != Z_NULL) - state->head->comment = Z_NULL; - state->mode = HCRC; - case HCRC: - if (state->flags & 0x0200) { - NEEDBITS(16); - if (hold != (state->check & 0xffff)) { - strm->msg = (char *)"header crc mismatch"; - state->mode = BAD; - break; - } - INITBITS(); - } - if (state->head != Z_NULL) { - state->head->hcrc = (int)((state->flags >> 9) & 1); - state->head->done = 1; - } - strm->adler = state->check = crc32(0L, Z_NULL, 0); - state->mode = TYPE; - break; -#endif - case DICTID: - NEEDBITS(32); - strm->adler = state->check = REVERSE(hold); - INITBITS(); - state->mode = DICT; - case DICT: - if (state->havedict == 0) { - RESTORE(); - return Z_NEED_DICT; - } - strm->adler = state->check = adler32(0L, Z_NULL, 0); - state->mode = TYPE; - case TYPE: - if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave; - case TYPEDO: - if (state->last) { - BYTEBITS(); - state->mode = CHECK; - break; - } - NEEDBITS(3); - state->last = BITS(1); - DROPBITS(1); - switch (BITS(2)) { - case 0: /* stored block */ - Tracev((stderr, "inflate: stored block%s\n", - state->last ? " (last)" : "")); - state->mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - Tracev((stderr, "inflate: fixed codes block%s\n", - state->last ? " (last)" : "")); - state->mode = LEN_; /* decode codes */ - if (flush == Z_TREES) { - DROPBITS(2); - goto inf_leave; - } - break; - case 2: /* dynamic block */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - state->last ? " (last)" : "")); - state->mode = TABLE; - break; - case 3: - strm->msg = (char *)"invalid block type"; - state->mode = BAD; - } - DROPBITS(2); - break; - case STORED: - BYTEBITS(); /* go to byte boundary */ - NEEDBITS(32); - if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { - strm->msg = (char *)"invalid stored block lengths"; - state->mode = BAD; - break; - } - state->length = (unsigned)hold & 0xffff; - Tracev((stderr, "inflate: stored length %u\n", - state->length)); - INITBITS(); - state->mode = COPY_; - if (flush == Z_TREES) goto inf_leave; - case COPY_: - state->mode = COPY; - case COPY: - copy = state->length; - if (copy) { - if (copy > have) copy = have; - if (copy > left) copy = left; - if (copy == 0) goto inf_leave; - zmemcpy(put, next, copy); - have -= copy; - next += copy; - left -= copy; - put += copy; - state->length -= copy; - break; - } - Tracev((stderr, "inflate: stored end\n")); - state->mode = TYPE; - break; - case TABLE: - NEEDBITS(14); - state->nlen = BITS(5) + 257; - DROPBITS(5); - state->ndist = BITS(5) + 1; - DROPBITS(5); - state->ncode = BITS(4) + 4; - DROPBITS(4); -#ifndef PKZIP_BUG_WORKAROUND - if (state->nlen > 286 || state->ndist > 30) { - strm->msg = (char *)"too many length or distance symbols"; - state->mode = BAD; - break; - } -#endif - Tracev((stderr, "inflate: table sizes ok\n")); - state->have = 0; - state->mode = LENLENS; - case LENLENS: - while (state->have < state->ncode) { - NEEDBITS(3); - state->lens[order[state->have++]] = (unsigned short)BITS(3); - DROPBITS(3); - } - while (state->have < 19) - state->lens[order[state->have++]] = 0; - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 7; - ret = inflate_table(CODES, state->lens, 19, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid code lengths set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: code lengths ok\n")); - state->have = 0; - state->mode = CODELENS; - case CODELENS: - while (state->have < state->nlen + state->ndist) { - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.val < 16) { - NEEDBITS(here.bits); - DROPBITS(here.bits); - state->lens[state->have++] = here.val; - } - else { - if (here.val == 16) { - NEEDBITS(here.bits + 2); - DROPBITS(here.bits); - if (state->have == 0) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - len = state->lens[state->have - 1]; - copy = 3 + BITS(2); - DROPBITS(2); - } - else if (here.val == 17) { - NEEDBITS(here.bits + 3); - DROPBITS(here.bits); - len = 0; - copy = 3 + BITS(3); - DROPBITS(3); - } - else { - NEEDBITS(here.bits + 7); - DROPBITS(here.bits); - len = 0; - copy = 11 + BITS(7); - DROPBITS(7); - } - if (state->have + copy > state->nlen + state->ndist) { - strm->msg = (char *)"invalid bit length repeat"; - state->mode = BAD; - break; - } - while (copy--) - state->lens[state->have++] = (unsigned short)len; - } - } - - /* handle error breaks in while */ - if (state->mode == BAD) break; - - /* check for end-of-block code (better have one) */ - if (state->lens[256] == 0) { - strm->msg = (char *)"invalid code -- missing end-of-block"; - state->mode = BAD; - break; - } - - /* build code tables -- note: do not change the lenbits or distbits - values here (9 and 6) without reading the comments in inftrees.h - concerning the ENOUGH constants, which depend on those values */ - state->next = state->codes; - state->lencode = (code const FAR *)(state->next); - state->lenbits = 9; - ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), - &(state->lenbits), state->work); - if (ret) { - strm->msg = (char *)"invalid literal/lengths set"; - state->mode = BAD; - break; - } - state->distcode = (code const FAR *)(state->next); - state->distbits = 6; - ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, - &(state->next), &(state->distbits), state->work); - if (ret) { - strm->msg = (char *)"invalid distances set"; - state->mode = BAD; - break; - } - Tracev((stderr, "inflate: codes ok\n")); - state->mode = LEN_; - if (flush == Z_TREES) goto inf_leave; - case LEN_: - state->mode = LEN; - case LEN: - if (have >= 6 && left >= 258) { - RESTORE(); - inflate_fast(strm, out); - LOAD(); - if (state->mode == TYPE) - state->back = -1; - break; - } - state->back = 0; - for (;;) { - here = state->lencode[BITS(state->lenbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if (here.op && (here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->lencode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - state->back += last.bits; - } - DROPBITS(here.bits); - state->back += here.bits; - state->length = (unsigned)here.val; - if ((int)(here.op) == 0) { - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - state->mode = LIT; - break; - } - if (here.op & 32) { - Tracevv((stderr, "inflate: end of block\n")); - state->back = -1; - state->mode = TYPE; - break; - } - if (here.op & 64) { - strm->msg = (char *)"invalid literal/length code"; - state->mode = BAD; - break; - } - state->extra = (unsigned)(here.op) & 15; - state->mode = LENEXT; - case LENEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->length += BITS(state->extra); - DROPBITS(state->extra); - state->back += state->extra; - } - Tracevv((stderr, "inflate: length %u\n", state->length)); - state->was = state->length; - state->mode = DIST; - case DIST: - for (;;) { - here = state->distcode[BITS(state->distbits)]; - if ((unsigned)(here.bits) <= bits) break; - PULLBYTE(); - } - if ((here.op & 0xf0) == 0) { - last = here; - for (;;) { - here = state->distcode[last.val + - (BITS(last.bits + last.op) >> last.bits)]; - if ((unsigned)(last.bits + here.bits) <= bits) break; - PULLBYTE(); - } - DROPBITS(last.bits); - state->back += last.bits; - } - DROPBITS(here.bits); - state->back += here.bits; - if (here.op & 64) { - strm->msg = (char *)"invalid distance code"; - state->mode = BAD; - break; - } - state->offset = (unsigned)here.val; - state->extra = (unsigned)(here.op) & 15; - state->mode = DISTEXT; - case DISTEXT: - if (state->extra) { - NEEDBITS(state->extra); - state->offset += BITS(state->extra); - DROPBITS(state->extra); - state->back += state->extra; - } -#ifdef INFLATE_STRICT - if (state->offset > state->dmax) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#endif - Tracevv((stderr, "inflate: distance %u\n", state->offset)); - state->mode = MATCH; - case MATCH: - if (left == 0) goto inf_leave; - copy = out - left; - if (state->offset > copy) { /* copy from window */ - copy = state->offset - copy; - if (copy > state->whave) { - if (state->sane) { - strm->msg = (char *)"invalid distance too far back"; - state->mode = BAD; - break; - } -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - Trace((stderr, "inflate.c too far\n")); - copy -= state->whave; - if (copy > state->length) copy = state->length; - if (copy > left) copy = left; - left -= copy; - state->length -= copy; - do { - *put++ = 0; - } while (--copy); - if (state->length == 0) state->mode = LEN; - break; -#endif - } - if (copy > state->wnext) { - copy -= state->wnext; - from = state->window + (state->wsize - copy); - } - else - from = state->window + (state->wnext - copy); - if (copy > state->length) copy = state->length; - } - else { /* copy from output */ - from = put - state->offset; - copy = state->length; - } - if (copy > left) copy = left; - left -= copy; - state->length -= copy; - do { - *put++ = *from++; - } while (--copy); - if (state->length == 0) state->mode = LEN; - break; - case LIT: - if (left == 0) goto inf_leave; - *put++ = (unsigned char)(state->length); - left--; - state->mode = LEN; - break; - case CHECK: - if (state->wrap) { - NEEDBITS(32); - out -= left; - strm->total_out += out; - state->total += out; - if (out) - strm->adler = state->check = - UPDATE(state->check, put - out, out); - out = left; - if (( -#ifdef GUNZIP - state->flags ? hold : -#endif - REVERSE(hold)) != state->check) { - strm->msg = (char *)"incorrect data check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: check matches trailer\n")); - } -#ifdef GUNZIP - state->mode = LENGTH; - case LENGTH: - if (state->wrap && state->flags) { - NEEDBITS(32); - if (hold != (state->total & 0xffffffffUL)) { - strm->msg = (char *)"incorrect length check"; - state->mode = BAD; - break; - } - INITBITS(); - Tracev((stderr, "inflate: length matches trailer\n")); - } -#endif - state->mode = DONE; - case DONE: - ret = Z_STREAM_END; - goto inf_leave; - case BAD: - ret = Z_DATA_ERROR; - goto inf_leave; - case MEM: - return Z_MEM_ERROR; - case SYNC: - default: - return Z_STREAM_ERROR; - } - - /* - Return from inflate(), updating the total counts and the check value. - If there was no progress during the inflate() call, return a buffer - error. Call updatewindow() to create and/or update the window state. - Note: a memory error from inflate() is non-recoverable. - */ - inf_leave: - RESTORE(); - if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) - if (updatewindow(strm, out)) { - state->mode = MEM; - return Z_MEM_ERROR; - } - in -= strm->avail_in; - out -= strm->avail_out; - strm->total_in += in; - strm->total_out += out; - state->total += out; - if (state->wrap && out) - strm->adler = state->check = - UPDATE(state->check, strm->next_out - out, out); - strm->data_type = state->bits + (state->last ? 64 : 0) + - (state->mode == TYPE ? 128 : 0) + - (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0); - if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) - ret = Z_BUF_ERROR; - return ret; -} - -int ZEXPORT inflateEnd(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->window != Z_NULL) ZFREE(strm, state->window); - ZFREE(strm, strm->state); - strm->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} - -int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) -z_streamp strm; -const Bytef *dictionary; -uInt dictLength; -{ - struct inflate_state FAR *state; - unsigned long id; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (state->wrap != 0 && state->mode != DICT) - return Z_STREAM_ERROR; - - /* check for correct dictionary id */ - if (state->mode == DICT) { - id = adler32(0L, Z_NULL, 0); - id = adler32(id, dictionary, dictLength); - if (id != state->check) - return Z_DATA_ERROR; - } - - /* copy dictionary to window */ - if (updatewindow(strm, strm->avail_out)) { - state->mode = MEM; - return Z_MEM_ERROR; - } - if (dictLength > state->wsize) { - zmemcpy(state->window, dictionary + dictLength - state->wsize, - state->wsize); - state->whave = state->wsize; - } - else { - zmemcpy(state->window + state->wsize - dictLength, dictionary, - dictLength); - state->whave = dictLength; - } - state->havedict = 1; - Tracev((stderr, "inflate: dictionary set\n")); - return Z_OK; -} - -int ZEXPORT inflateGetHeader(strm, head) -z_streamp strm; -gz_headerp head; -{ - struct inflate_state FAR *state; - - /* check state */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if ((state->wrap & 2) == 0) return Z_STREAM_ERROR; - - /* save header structure */ - state->head = head; - head->done = 0; - return Z_OK; -} - -/* - Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found - or when out of input. When called, *have is the number of pattern bytes - found in order so far, in 0..3. On return *have is updated to the new - state. If on return *have equals four, then the pattern was found and the - return value is how many bytes were read including the last byte of the - pattern. If *have is less than four, then the pattern has not been found - yet and the return value is len. In the latter case, syncsearch() can be - called again with more data and the *have state. *have is initialized to - zero for the first call. - */ -local unsigned syncsearch(have, buf, len) -unsigned FAR *have; -unsigned char FAR *buf; -unsigned len; -{ - unsigned got; - unsigned next; - - got = *have; - next = 0; - while (next < len && got < 4) { - if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) - got++; - else if (buf[next]) - got = 0; - else - got = 4 - got; - next++; - } - *have = got; - return next; -} - -int ZEXPORT inflateSync(strm) -z_streamp strm; -{ - unsigned len; /* number of bytes to look at or looked at */ - unsigned long in, out; /* temporary to save total_in and total_out */ - unsigned char buf[4]; /* to restore bit buffer to byte string */ - struct inflate_state FAR *state; - - /* check parameters */ - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; - - /* if first time, start search in bit buffer */ - if (state->mode != SYNC) { - state->mode = SYNC; - state->hold <<= state->bits & 7; - state->bits -= state->bits & 7; - len = 0; - while (state->bits >= 8) { - buf[len++] = (unsigned char)(state->hold); - state->hold >>= 8; - state->bits -= 8; - } - state->have = 0; - syncsearch(&(state->have), buf, len); - } - - /* search available input */ - len = syncsearch(&(state->have), strm->next_in, strm->avail_in); - strm->avail_in -= len; - strm->next_in += len; - strm->total_in += len; - - /* return no joy or set up to restart inflate() on a new block */ - if (state->have != 4) return Z_DATA_ERROR; - in = strm->total_in; out = strm->total_out; - inflateReset(strm); - strm->total_in = in; strm->total_out = out; - state->mode = TYPE; - return Z_OK; -} - -/* - Returns true if inflate is currently at the end of a block generated by - Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - implementation to provide an additional safety check. PPP uses - Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored - block. When decompressing, PPP checks that at the end of input packet, - inflate is waiting for these length bytes. - */ -int ZEXPORT inflateSyncPoint(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - return state->mode == STORED && state->bits == 0; -} - -int ZEXPORT inflateCopy(dest, source) -z_streamp dest; -z_streamp source; -{ - struct inflate_state FAR *state; - struct inflate_state FAR *copy; - unsigned char FAR *window; - unsigned wsize; - - /* check input */ - if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || - source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) - return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)source->state; - - /* allocate space */ - copy = (struct inflate_state FAR *) - ZALLOC(source, 1, sizeof(struct inflate_state)); - if (copy == Z_NULL) return Z_MEM_ERROR; - window = Z_NULL; - if (state->window != Z_NULL) { - window = (unsigned char FAR *) - ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); - if (window == Z_NULL) { - ZFREE(source, copy); - return Z_MEM_ERROR; - } - } - - /* copy state */ - zmemcpy(dest, source, sizeof(z_stream)); - zmemcpy(copy, state, sizeof(struct inflate_state)); - if (state->lencode >= state->codes && - state->lencode <= state->codes + ENOUGH - 1) { - copy->lencode = copy->codes + (state->lencode - state->codes); - copy->distcode = copy->codes + (state->distcode - state->codes); - } - copy->next = copy->codes + (state->next - state->codes); - if (window != Z_NULL) { - wsize = 1U << state->wbits; - zmemcpy(window, state->window, wsize); - } - copy->window = window; - dest->state = (struct internal_state FAR *)copy; - return Z_OK; -} - -int ZEXPORT inflateUndermine(strm, subvert) -z_streamp strm; -int subvert; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; - state = (struct inflate_state FAR *)strm->state; - state->sane = !subvert; -#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR - return Z_OK; -#else - state->sane = 1; - return Z_DATA_ERROR; -#endif -} - -long ZEXPORT inflateMark(strm) -z_streamp strm; -{ - struct inflate_state FAR *state; - - if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16; - state = (struct inflate_state FAR *)strm->state; - return ((long)(state->back) << 16) + - (state->mode == COPY ? state->length : - (state->mode == MATCH ? state->was - state->length : 0)); -} diff --git a/zlib/inflate.h b/zlib/inflate.h deleted file mode 100755 index 95f4986..0000000 --- a/zlib/inflate.h +++ /dev/null @@ -1,122 +0,0 @@ -/* inflate.h -- internal inflate state definition - * Copyright (C) 1995-2009 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* define NO_GZIP when compiling if you want to disable gzip header and - trailer decoding by inflate(). NO_GZIP would be used to avoid linking in - the crc code when it is not needed. For shared libraries, gzip decoding - should be left enabled. */ -#ifndef NO_GZIP -# define GUNZIP -#endif - -/* Possible inflate modes between inflate() calls */ -typedef enum { - HEAD, /* i: waiting for magic header */ - FLAGS, /* i: waiting for method and flags (gzip) */ - TIME, /* i: waiting for modification time (gzip) */ - OS, /* i: waiting for extra flags and operating system (gzip) */ - EXLEN, /* i: waiting for extra length (gzip) */ - EXTRA, /* i: waiting for extra bytes (gzip) */ - NAME, /* i: waiting for end of file name (gzip) */ - COMMENT, /* i: waiting for end of comment (gzip) */ - HCRC, /* i: waiting for header crc (gzip) */ - DICTID, /* i: waiting for dictionary check value */ - DICT, /* waiting for inflateSetDictionary() call */ - TYPE, /* i: waiting for type bits, including last-flag bit */ - TYPEDO, /* i: same, but skip check to exit inflate on new block */ - STORED, /* i: waiting for stored size (length and complement) */ - COPY_, /* i/o: same as COPY below, but only first time in */ - COPY, /* i/o: waiting for input or output to copy stored block */ - TABLE, /* i: waiting for dynamic block table lengths */ - LENLENS, /* i: waiting for code length code lengths */ - CODELENS, /* i: waiting for length/lit and distance code lengths */ - LEN_, /* i: same as LEN below, but only first time in */ - LEN, /* i: waiting for length/lit/eob code */ - LENEXT, /* i: waiting for length extra bits */ - DIST, /* i: waiting for distance code */ - DISTEXT, /* i: waiting for distance extra bits */ - MATCH, /* o: waiting for output space to copy string */ - LIT, /* o: waiting for output space to write literal */ - CHECK, /* i: waiting for 32-bit check value */ - LENGTH, /* i: waiting for 32-bit length (gzip) */ - DONE, /* finished check, done -- remain here until reset */ - BAD, /* got a data error -- remain here until reset */ - MEM, /* got an inflate() memory error -- remain here until reset */ - SYNC /* looking for synchronization bytes to restart inflate() */ -} inflate_mode; - -/* - State transitions between above modes - - - (most modes can go to BAD or MEM on error -- not shown for clarity) - - Process header: - HEAD -> (gzip) or (zlib) or (raw) - (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT -> - HCRC -> TYPE - (zlib) -> DICTID or TYPE - DICTID -> DICT -> TYPE - (raw) -> TYPEDO - Read deflate blocks: - TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK - STORED -> COPY_ -> COPY -> TYPE - TABLE -> LENLENS -> CODELENS -> LEN_ - LEN_ -> LEN - Read deflate codes in fixed or dynamic block: - LEN -> LENEXT or LIT or TYPE - LENEXT -> DIST -> DISTEXT -> MATCH -> LEN - LIT -> LEN - Process trailer: - CHECK -> LENGTH -> DONE - */ - -/* state maintained between inflate() calls. Approximately 10K bytes. */ -struct inflate_state { - inflate_mode mode; /* current inflate mode */ - int last; /* true if processing last block */ - int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ - int havedict; /* true if dictionary provided */ - int flags; /* gzip header method and flags (0 if zlib) */ - unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ - unsigned long check; /* protected copy of check value */ - unsigned long total; /* protected copy of output count */ - gz_headerp head; /* where to save gzip header information */ - /* sliding window */ - unsigned wbits; /* log base 2 of requested window size */ - unsigned wsize; /* window size or zero if not using window */ - unsigned whave; /* valid bytes in the window */ - unsigned wnext; /* window write index */ - unsigned char FAR *window; /* allocated sliding window, if needed */ - /* bit accumulator */ - unsigned long hold; /* input bit accumulator */ - unsigned bits; /* number of bits in "in" */ - /* for string and stored block copying */ - unsigned length; /* literal or length of data to copy */ - unsigned offset; /* distance back to copy string from */ - /* for table and code decoding */ - unsigned extra; /* extra bits needed */ - /* fixed and dynamic code tables */ - code const FAR *lencode; /* starting table for length/literal codes */ - code const FAR *distcode; /* starting table for distance codes */ - unsigned lenbits; /* index bits for lencode */ - unsigned distbits; /* index bits for distcode */ - /* dynamic table building */ - unsigned ncode; /* number of code length code lengths */ - unsigned nlen; /* number of length code lengths */ - unsigned ndist; /* number of distance code lengths */ - unsigned have; /* number of code lengths in lens[] */ - code FAR *next; /* next available space in codes[] */ - unsigned short lens[320]; /* temporary storage for code lengths */ - unsigned short work[288]; /* work area for code table building */ - code codes[ENOUGH]; /* space for code tables */ - int sane; /* if false, allow invalid distance too far */ - int back; /* bits back of last unprocessed length/lit */ - unsigned was; /* initial length of match */ -}; diff --git a/zlib/inftrees.c b/zlib/inftrees.c deleted file mode 100755 index 11e9c52..0000000 --- a/zlib/inftrees.c +++ /dev/null @@ -1,330 +0,0 @@ -/* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" - -#define MAXBITS 15 - -const char inflate_copyright[] = - " inflate 1.2.5 Copyright 1995-2010 Mark Adler "; -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ - -/* - Build a set of tables to decode the provided canonical Huffman code. - The code lengths are lens[0..codes-1]. The result starts at *table, - whose indices are 0..2^bits-1. work is a writable array of at least - lens shorts, which is used as a work area. type is the type of code - to be generated, CODES, LENS, or DISTS. On return, zero is success, - -1 is an invalid code, and +1 means that ENOUGH isn't enough. table - on return points to the next available entry's address. bits is the - requested root table index bits, and on return it is the actual root - table index bits. It will differ if the request is greater than the - longest code or if it is less than the shortest code. - */ -int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work) -codetype type; -unsigned short FAR *lens; -unsigned codes; -code FAR * FAR *table; -unsigned FAR *bits; -unsigned short FAR *work; -{ - unsigned len; /* a code's length in bits */ - unsigned sym; /* index of code symbols */ - unsigned min, max; /* minimum and maximum code lengths */ - unsigned root; /* number of index bits for root table */ - unsigned curr; /* number of index bits for current table */ - unsigned drop; /* code bits to drop for sub-table */ - int left; /* number of prefix codes available */ - unsigned used; /* code entries in table used */ - unsigned huff; /* Huffman code */ - unsigned incr; /* for incrementing code, index */ - unsigned fill; /* index for replicating entries */ - unsigned low; /* low bits for current root entry */ - unsigned mask; /* mask for low root bits */ - code here; /* table entry for duplication */ - code FAR *next; /* next available space in table */ - const unsigned short FAR *base; /* base value table to use */ - const unsigned short FAR *extra; /* extra bits table to use */ - int end; /* use base and extra for symbol > end */ - unsigned short count[MAXBITS+1]; /* number of codes of each length */ - unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ - static const unsigned short lbase[31] = { /* Length codes 257..285 base */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - static const unsigned short lext[31] = { /* Length codes 257..285 extra */ - 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, - 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 73, 195}; - static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577, 0, 0}; - static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ - 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, - 28, 28, 29, 29, 64, 64}; - - /* - Process a set of code lengths to create a canonical Huffman code. The - code lengths are lens[0..codes-1]. Each length corresponds to the - symbols 0..codes-1. The Huffman code is generated by first sorting the - symbols by length from short to long, and retaining the symbol order - for codes with equal lengths. Then the code starts with all zero bits - for the first code of the shortest length, and the codes are integer - increments for the same length, and zeros are appended as the length - increases. For the deflate format, these bits are stored backwards - from their more natural integer increment ordering, and so when the - decoding tables are built in the large loop below, the integer codes - are incremented backwards. - - This routine assumes, but does not check, that all of the entries in - lens[] are in the range 0..MAXBITS. The caller must assure this. - 1..MAXBITS is interpreted as that code length. zero means that that - symbol does not occur in this code. - - The codes are sorted by computing a count of codes for each length, - creating from that a table of starting indices for each length in the - sorted table, and then entering the symbols in order in the sorted - table. The sorted table is work[], with that space being provided by - the caller. - - The length counts are used for other purposes as well, i.e. finding - the minimum and maximum length codes, determining if there are any - codes at all, checking for a valid set of lengths, and looking ahead - at length counts to determine sub-table sizes when building the - decoding tables. - */ - - /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ - for (len = 0; len <= MAXBITS; len++) - count[len] = 0; - for (sym = 0; sym < codes; sym++) - count[lens[sym]]++; - - /* bound code lengths, force root to be within code lengths */ - root = *bits; - for (max = MAXBITS; max >= 1; max--) - if (count[max] != 0) break; - if (root > max) root = max; - if (max == 0) { /* no symbols to code at all */ - here.op = (unsigned char)64; /* invalid code marker */ - here.bits = (unsigned char)1; - here.val = (unsigned short)0; - *(*table)++ = here; /* make a table to force an error */ - *(*table)++ = here; - *bits = 1; - return 0; /* no symbols, but wait for decoding to report error */ - } - for (min = 1; min < max; min++) - if (count[min] != 0) break; - if (root < min) root = min; - - /* check for an over-subscribed or incomplete set of lengths */ - left = 1; - for (len = 1; len <= MAXBITS; len++) { - left <<= 1; - left -= count[len]; - if (left < 0) return -1; /* over-subscribed */ - } - if (left > 0 && (type == CODES || max != 1)) - return -1; /* incomplete set */ - - /* generate offsets into symbol table for each length for sorting */ - offs[1] = 0; - for (len = 1; len < MAXBITS; len++) - offs[len + 1] = offs[len] + count[len]; - - /* sort symbols by length, by symbol order within each length */ - for (sym = 0; sym < codes; sym++) - if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; - - /* - Create and fill in decoding tables. In this loop, the table being - filled is at next and has curr index bits. The code being used is huff - with length len. That code is converted to an index by dropping drop - bits off of the bottom. For codes where len is less than drop + curr, - those top drop + curr - len bits are incremented through all values to - fill the table with replicated entries. - - root is the number of index bits for the root table. When len exceeds - root, sub-tables are created pointed to by the root entry with an index - of the low root bits of huff. This is saved in low to check for when a - new sub-table should be started. drop is zero when the root table is - being filled, and drop is root when sub-tables are being filled. - - When a new sub-table is needed, it is necessary to look ahead in the - code lengths to determine what size sub-table is needed. The length - counts are used for this, and so count[] is decremented as codes are - entered in the tables. - - used keeps track of how many table entries have been allocated from the - provided *table space. It is checked for LENS and DIST tables against - the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in - the initial root table size constants. See the comments in inftrees.h - for more information. - - sym increments through all symbols, and the loop terminates when - all codes of length max, i.e. all codes, have been processed. This - routine permits incomplete codes, so another loop after this one fills - in the rest of the decoding tables with invalid code markers. - */ - - /* set up for code type */ - switch (type) { - case CODES: - base = extra = work; /* dummy value--not used */ - end = 19; - break; - case LENS: - base = lbase; - base -= 257; - extra = lext; - extra -= 257; - end = 256; - break; - default: /* DISTS */ - base = dbase; - extra = dext; - end = -1; - } - - /* initialize state for loop */ - huff = 0; /* starting code */ - sym = 0; /* starting code symbol */ - len = min; /* starting code length */ - next = *table; /* current table to fill in */ - curr = root; /* current table index bits */ - drop = 0; /* current bits to drop from code for index */ - low = (unsigned)(-1); /* trigger new sub-table when len > root */ - used = 1U << root; /* use root table entries */ - mask = used - 1; /* mask for comparing low */ - - /* check available table space */ - if ((type == LENS && used >= ENOUGH_LENS) || - (type == DISTS && used >= ENOUGH_DISTS)) - return 1; - - /* process all codes and make table entries */ - for (;;) { - /* create table entry */ - here.bits = (unsigned char)(len - drop); - if ((int)(work[sym]) < end) { - here.op = (unsigned char)0; - here.val = work[sym]; - } - else if ((int)(work[sym]) > end) { - here.op = (unsigned char)(extra[work[sym]]); - here.val = base[work[sym]]; - } - else { - here.op = (unsigned char)(32 + 64); /* end of block */ - here.val = 0; - } - - /* replicate for those indices with low len bits equal to huff */ - incr = 1U << (len - drop); - fill = 1U << curr; - min = fill; /* save offset to next table */ - do { - fill -= incr; - next[(huff >> drop) + fill] = here; - } while (fill != 0); - - /* backwards increment the len-bit code huff */ - incr = 1U << (len - 1); - while (huff & incr) - incr >>= 1; - if (incr != 0) { - huff &= incr - 1; - huff += incr; - } - else - huff = 0; - - /* go to next symbol, update count, len */ - sym++; - if (--(count[len]) == 0) { - if (len == max) break; - len = lens[work[sym]]; - } - - /* create new sub-table if needed */ - if (len > root && (huff & mask) != low) { - /* if first time, transition to sub-tables */ - if (drop == 0) - drop = root; - - /* increment past last table */ - next += min; /* here min is 1 << curr */ - - /* determine length of next table */ - curr = len - drop; - left = (int)(1 << curr); - while (curr + drop < max) { - left -= count[curr + drop]; - if (left <= 0) break; - curr++; - left <<= 1; - } - - /* check for enough space */ - used += 1U << curr; - if ((type == LENS && used >= ENOUGH_LENS) || - (type == DISTS && used >= ENOUGH_DISTS)) - return 1; - - /* point entry in root table to sub-table */ - low = huff & mask; - (*table)[low].op = (unsigned char)curr; - (*table)[low].bits = (unsigned char)root; - (*table)[low].val = (unsigned short)(next - *table); - } - } - - /* - Fill in rest of table for incomplete codes. This loop is similar to the - loop above in incrementing huff for table indices. It is assumed that - len is equal to curr + drop, so there is no loop needed to increment - through high index bits. When the current sub-table is filled, the loop - drops back to the root table to fill in any remaining entries there. - */ - here.op = (unsigned char)64; /* invalid code marker */ - here.bits = (unsigned char)(len - drop); - here.val = (unsigned short)0; - while (huff != 0) { - /* when done with sub-table, drop back to root table */ - if (drop != 0 && (huff & mask) != low) { - drop = 0; - len = root; - next = *table; - here.bits = (unsigned char)len; - } - - /* put invalid code marker in table */ - next[huff >> drop] = here; - - /* backwards increment the len-bit code huff */ - incr = 1U << (len - 1); - while (huff & incr) - incr >>= 1; - if (incr != 0) { - huff &= incr - 1; - huff += incr; - } - else - huff = 0; - } - - /* set return parameters */ - *table += used; - *bits = root; - return 0; -} diff --git a/zlib/inftrees.h b/zlib/inftrees.h deleted file mode 100755 index baa53a0..0000000 --- a/zlib/inftrees.h +++ /dev/null @@ -1,62 +0,0 @@ -/* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2005, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* Structure for decoding tables. Each entry provides either the - information needed to do the operation requested by the code that - indexed that table entry, or it provides a pointer to another - table that indexes more bits of the code. op indicates whether - the entry is a pointer to another table, a literal, a length or - distance, an end-of-block, or an invalid code. For a table - pointer, the low four bits of op is the number of index bits of - that table. For a length or distance, the low four bits of op - is the number of extra bits to get after the code. bits is - the number of bits in this code or part of the code to drop off - of the bit buffer. val is the actual byte to output in the case - of a literal, the base length or distance, or the offset from - the current table to the next table. Each entry is four bytes. */ -typedef struct { - unsigned char op; /* operation, extra bits, table bits */ - unsigned char bits; /* bits in this part of the code */ - unsigned short val; /* offset in table or code value */ -} code; - -/* op values as set by inflate_table(): - 00000000 - literal - 0000tttt - table link, tttt != 0 is the number of table index bits - 0001eeee - length or distance, eeee is the number of extra bits - 01100000 - end of block - 01000000 - invalid code - */ - -/* Maximum size of the dynamic table. The maximum number of code structures is - 1444, which is the sum of 852 for literal/length codes and 592 for distance - codes. These values were found by exhaustive searches using the program - examples/enough.c found in the zlib distribtution. The arguments to that - program are the number of symbols, the initial root table size, and the - maximum bit length of a code. "enough 286 9 15" for literal/length codes - returns returns 852, and "enough 30 6 15" for distance codes returns 592. - The initial root table size (9 or 6) is found in the fifth argument of the - inflate_table() calls in inflate.c and infback.c. If the root table size is - changed, then these maximum sizes would be need to be recalculated and - updated. */ -#define ENOUGH_LENS 852 -#define ENOUGH_DISTS 592 -#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) - -/* Type of code to build for inflate_table() */ -typedef enum { - CODES, - LENS, - DISTS -} codetype; - -int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens, - unsigned codes, code FAR * FAR *table, - unsigned FAR *bits, unsigned short FAR *work)); diff --git a/zlib/make_vms.com b/zlib/make_vms.com deleted file mode 100755 index 6576490..0000000 --- a/zlib/make_vms.com +++ /dev/null @@ -1,804 +0,0 @@ -$! make libz under VMS written by -$! Martin P.J. Zinser -$! -$! In case of problems with the install you might contact me at -$! zinser@zinser.no-ip.info(preferred) or -$! zinser@sysdev.deutsche-boerse.com (work) -$! -$! Make procedure history for Zlib -$! -$!------------------------------------------------------------------------------ -$! Version history -$! 0.01 20060120 First version to receive a number -$! 0.02 20061008 Adapt to new Makefile.in -$! 0.03 20091224 Add support for large file check -$! 0.04 20100110 Add new gzclose, gzlib, gzread, gzwrite -$! 0.05 20100221 Exchange zlibdefs.h by zconf.h.in -$! -$ on error then goto err_exit -$ set proc/parse=ext -$! -$ true = 1 -$ false = 0 -$ tmpnam = "temp_" + f$getjpi("","pid") -$ tt = tmpnam + ".txt" -$ tc = tmpnam + ".c" -$ th = tmpnam + ".h" -$ define/nolog tconfig 'th' -$ its_decc = false -$ its_vaxc = false -$ its_gnuc = false -$ s_case = False -$! -$! Setup variables holding "config" information -$! -$ Make = "" -$ name = "Zlib" -$ version = "?.?.?" -$ v_string = "ZLIB_VERSION" -$ v_file = "zlib.h" -$ ccopt = "" -$ lopts = "" -$ dnsrl = "" -$ aconf_in_file = "zconf.h.in#zconf.h_in" -$ conf_check_string = "" -$ linkonly = false -$ optfile = name + ".opt" -$ libdefs = "" -$ axp = f$getsyi("HW_MODEL").ge.1024 .and. f$getsyi("HW_MODEL").lt.4096 -$! -$ whoami = f$parse(f$enviornment("Procedure"),,,,"NO_CONCEAL") -$ mydef = F$parse(whoami,,,"DEVICE") -$ mydir = f$parse(whoami,,,"DIRECTORY") - "][" -$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type") -$! -$! Check for MMK/MMS -$! -$ If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS" -$ If F$Type (MMK) .eqs. "STRING" Then Make = "MMK" -$! -$! -$ gosub find_version -$! -$ open/write topt tmp.opt -$ open/write optf 'optfile' -$! -$ gosub check_opts -$! -$! Look for the compiler used -$! -$ gosub check_compiler -$ close topt -$! -$ if its_decc -$ then -$ ccopt = "/prefix=all" + ccopt -$ if f$trnlnm("SYS") .eqs. "" -$ then -$ if axp -$ then -$ define sys sys$library: -$ else -$ ccopt = "/decc" + ccopt -$ define sys decc$library_include: -$ endif -$ endif -$ endif -$ if its_vaxc .or. its_gnuc -$ then -$ if f$trnlnm("SYS").eqs."" then define sys sys$library: -$ endif -$! -$! Build a fake configure input header -$! -$ open/write conf_hin config.hin -$ write conf_hin "#undef _LARGEFILE64_SOURCE" -$ close conf_hin -$! -$! -$ i = 0 -$FIND_ACONF: -$ fname = f$element(i,"#",aconf_in_file) -$ if fname .eqs. "#" then goto AMISS_ERR -$ if f$search(fname) .eqs. "" -$ then -$ i = i + 1 -$ goto find_aconf -$ endif -$ open/read/err=aconf_err aconf_in 'fname' -$ open/write aconf zconf.h -$ACONF_LOOP: -$ read/end_of_file=aconf_exit aconf_in line -$ work = f$edit(line, "compress,trim") -$ if f$extract(0,6,work) .nes. "#undef" -$ then -$ if f$extract(0,12,work) .nes. "#cmakedefine" -$ then -$ write aconf line -$ endif -$ else -$ cdef = f$element(1," ",work) -$ gosub check_config -$ endif -$ goto aconf_loop -$ACONF_EXIT: -$ write aconf "#define VMS 1" -$ write aconf "#include " -$ write aconf "#include " -$ write aconf "#ifdef _LARGEFILE" -$ write aconf "#define off64_t __off64_t" -$ write aconf "#define fopen64 fopen" -$ write aconf "#define fseeko64 fseeko" -$ write aconf "#define lseek64 lseek" -$ write aconf "#define ftello64 ftell" -$ write aconf "#endif" -$ close aconf_in -$ close aconf -$ if f$search("''th'") .nes. "" then delete 'th';* -$! Build the thing plain or with mms -$! -$ write sys$output "Compiling Zlib sources ..." -$ if make.eqs."" -$ then -$ dele example.obj;*,minigzip.obj;* -$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" - - adler32.c zlib.h zconf.h -$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" - - compress.c zlib.h zconf.h -$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" - - crc32.c zlib.h zconf.h -$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" - - deflate.c deflate.h zutil.h zlib.h zconf.h -$ CALL MAKE gzclose.OBJ "CC ''CCOPT' gzclose" - - gzclose.c zutil.h zlib.h zconf.h -$ CALL MAKE gzlib.OBJ "CC ''CCOPT' gzlib" - - gzlib.c zutil.h zlib.h zconf.h -$ CALL MAKE gzread.OBJ "CC ''CCOPT' gzread" - - gzread.c zutil.h zlib.h zconf.h -$ CALL MAKE gzwrite.OBJ "CC ''CCOPT' gzwrite" - - gzwrite.c zutil.h zlib.h zconf.h -$ CALL MAKE infback.OBJ "CC ''CCOPT' infback" - - infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h -$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" - - inffast.c zutil.h zlib.h zconf.h inffast.h -$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" - - inflate.c zutil.h zlib.h zconf.h infblock.h -$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" - - inftrees.c zutil.h zlib.h zconf.h inftrees.h -$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" - - trees.c deflate.h zutil.h zlib.h zconf.h -$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" - - uncompr.c zlib.h zconf.h -$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" - - zutil.c zutil.h zlib.h zconf.h -$ write sys$output "Building Zlib ..." -$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ -$ write sys$output "Building example..." -$ CALL MAKE example.OBJ "CC ''CCOPT' example" - - example.c zlib.h zconf.h -$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb -$ if f$search("x11vms:xvmsutils.olb") .nes. "" -$ then -$ write sys$output "Building minigzip..." -$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" - - minigzip.c zlib.h zconf.h -$ call make minigzip.exe - - "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" - - minigzip.obj libz.olb -$ endif -$ else -$ gosub crea_mms -$ write sys$output "Make ''name' ''version' with ''Make' " -$ 'make' -$ endif -$! -$! Alpha gets a shareable image -$! -$ If axp -$ Then -$ gosub crea_olist -$ write sys$output "Creating libzshr.exe" -$ call anal_obj_axp modules.opt _link.opt -$ if s_case -$ then -$ open/append optf modules.opt -$ write optf "case_sensitive=YES" -$ close optf -$ endif -$ LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,_link.opt/opt -$ endif -$ write sys$output "Zlib build completed" -$ exit -$CC_ERR: -$ write sys$output "C compiler required to build ''name'" -$ goto err_exit -$ERR_EXIT: -$ set message/facil/ident/sever/text -$ close/nolog optf -$ close/nolog topt -$ close/nolog conf_hin -$ close/nolog aconf_in -$ close/nolog aconf -$ close/nolog out -$ close/nolog min -$ close/nolog mod -$ close/nolog h_in -$ write sys$output "Exiting..." -$ exit 2 -$! -$! -$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES -$ V = 'F$Verify(0) -$! P1 = What we are trying to make -$! P2 = Command to make it -$! P3 - P8 What it depends on -$ -$ If F$Search(P1) .Eqs. "" Then Goto Makeit -$ Time = F$CvTime(F$File(P1,"RDT")) -$arg=3 -$Loop: -$ Argument = P'arg -$ If Argument .Eqs. "" Then Goto Exit -$ El=0 -$Loop2: -$ File = F$Element(El," ",Argument) -$ If File .Eqs. " " Then Goto Endl -$ AFile = "" -$Loop3: -$ OFile = AFile -$ AFile = F$Search(File) -$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl -$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit -$ Goto Loop3 -$NextEL: -$ El = El + 1 -$ Goto Loop2 -$EndL: -$ arg=arg+1 -$ If arg .Le. 8 Then Goto Loop -$ Goto Exit -$ -$Makeit: -$ VV=F$VERIFY(0) -$ write sys$output P2 -$ 'P2 -$ VV='F$Verify(VV) -$Exit: -$ If V Then Set Verify -$ENDSUBROUTINE -$!------------------------------------------------------------------------------ -$! -$! Check command line options and set symbols accordingly -$! -$!------------------------------------------------------------------------------ -$! Version history -$! 0.01 20041206 First version to receive a number -$! 0.02 20060126 Add new "HELP" target -$ CHECK_OPTS: -$ i = 1 -$ OPT_LOOP: -$ if i .lt. 9 -$ then -$ cparm = f$edit(p'i',"upcase") -$! -$! Check if parameter actually contains something -$! -$ if f$edit(cparm,"trim") .nes. "" -$ then -$ if cparm .eqs. "DEBUG" -$ then -$ ccopt = ccopt + "/noopt/deb" -$ lopts = lopts + "/deb" -$ endif -$ if f$locate("CCOPT=",cparm) .lt. f$length(cparm) -$ then -$ start = f$locate("=",cparm) + 1 -$ len = f$length(cparm) - start -$ ccopt = ccopt + f$extract(start,len,cparm) -$ if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) - - then s_case = true -$ endif -$ if cparm .eqs. "LINK" then linkonly = true -$ if f$locate("LOPTS=",cparm) .lt. f$length(cparm) -$ then -$ start = f$locate("=",cparm) + 1 -$ len = f$length(cparm) - start -$ lopts = lopts + f$extract(start,len,cparm) -$ endif -$ if f$locate("CC=",cparm) .lt. f$length(cparm) -$ then -$ start = f$locate("=",cparm) + 1 -$ len = f$length(cparm) - start -$ cc_com = f$extract(start,len,cparm) - if (cc_com .nes. "DECC") .and. - - (cc_com .nes. "VAXC") .and. - - (cc_com .nes. "GNUC") -$ then -$ write sys$output "Unsupported compiler choice ''cc_com' ignored" -$ write sys$output "Use DECC, VAXC, or GNUC instead" -$ else -$ if cc_com .eqs. "DECC" then its_decc = true -$ if cc_com .eqs. "VAXC" then its_vaxc = true -$ if cc_com .eqs. "GNUC" then its_gnuc = true -$ endif -$ endif -$ if f$locate("MAKE=",cparm) .lt. f$length(cparm) -$ then -$ start = f$locate("=",cparm) + 1 -$ len = f$length(cparm) - start -$ mmks = f$extract(start,len,cparm) -$ if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS") -$ then -$ make = mmks -$ else -$ write sys$output "Unsupported make choice ''mmks' ignored" -$ write sys$output "Use MMK or MMS instead" -$ endif -$ endif -$ if cparm .eqs. "HELP" then gosub bhelp -$ endif -$ i = i + 1 -$ goto opt_loop -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! Look for the compiler used -$! -$! Version history -$! 0.01 20040223 First version to receive a number -$! 0.02 20040229 Save/set value of decc$no_rooted_search_lists -$! 0.03 20060202 Extend handling of GNU C -$! 0.04 20090402 Compaq -> hp -$CHECK_COMPILER: -$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) -$ then -$ its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "") -$ its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "") -$ its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "") -$ endif -$! -$! Exit if no compiler available -$! -$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc)) -$ then goto CC_ERR -$ else -$ if its_decc -$ then -$ write sys$output "CC compiler check ... hp C" -$ if f$trnlnm("decc$no_rooted_search_lists") .nes. "" -$ then -$ dnrsl = f$trnlnm("decc$no_rooted_search_lists") -$ endif -$ define/nolog decc$no_rooted_search_lists 1 -$ else -$ if its_vaxc then write sys$output "CC compiler check ... VAX C" -$ if its_gnuc -$ then -$ write sys$output "CC compiler check ... GNU C" -$ if f$trnlnm(topt) then write topt "gnu_cc:[000000]gcclib.olb/lib" -$ if f$trnlnm(optf) then write optf "gnu_cc:[000000]gcclib.olb/lib" -$ cc = "gcc" -$ endif -$ if f$trnlnm(topt) then write topt "sys$share:vaxcrtl.exe/share" -$ if f$trnlnm(optf) then write optf "sys$share:vaxcrtl.exe/share" -$ endif -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! If MMS/MMK are available dump out the descrip.mms if required -$! -$CREA_MMS: -$ write sys$output "Creating descrip.mms..." -$ create descrip.mms -$ open/append out descrip.mms -$ copy sys$input: out -$ deck -# descrip.mms: MMS description file for building zlib on VMS -# written by Martin P.J. Zinser -# - -OBJS = adler32.obj, compress.obj, crc32.obj, gzclose.obj, gzlib.obj\ - gzread.obj, gzwrite.obj, uncompr.obj, infback.obj\ - deflate.obj, trees.obj, zutil.obj, inflate.obj, \ - inftrees.obj, inffast.obj - -$ eod -$ write out "CFLAGS=", ccopt -$ write out "LOPTS=", lopts -$ copy sys$input: out -$ deck - -all : example.exe minigzip.exe libz.olb - @ write sys$output " Example applications available" - -libz.olb : libz.olb($(OBJS)) - @ write sys$output " libz available" - -example.exe : example.obj libz.olb - link $(LOPTS) example,libz.olb/lib - -minigzip.exe : minigzip.obj libz.olb - link $(LOPTS) minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib - -clean : - delete *.obj;*,libz.olb;*,*.opt;*,*.exe;* - - -# Other dependencies. -adler32.obj : adler32.c zutil.h zlib.h zconf.h -compress.obj : compress.c zlib.h zconf.h -crc32.obj : crc32.c zutil.h zlib.h zconf.h -deflate.obj : deflate.c deflate.h zutil.h zlib.h zconf.h -example.obj : example.c zlib.h zconf.h -gzclose.obj : gzclose.c zutil.h zlib.h zconf.h -gzlib.obj : gzlib.c zutil.h zlib.h zconf.h -gzread.obj : gzread.c zutil.h zlib.h zconf.h -gzwrite.obj : gzwrite.c zutil.h zlib.h zconf.h -inffast.obj : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h -inflate.obj : inflate.c zutil.h zlib.h zconf.h -inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h -minigzip.obj : minigzip.c zlib.h zconf.h -trees.obj : trees.c deflate.h zutil.h zlib.h zconf.h -uncompr.obj : uncompr.c zlib.h zconf.h -zutil.obj : zutil.c zutil.h zlib.h zconf.h -infback.obj : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h -$ eod -$ close out -$ return -$!------------------------------------------------------------------------------ -$! -$! Read list of core library sources from makefile.in and create options -$! needed to build shareable image -$! -$CREA_OLIST: -$ open/read min makefile.in -$ open/write mod modules.opt -$ src_check = "OBJC =" -$MRLOOP: -$ read/end=mrdone min rec -$ if (f$extract(0,6,rec) .nes. src_check) then goto mrloop -$ rec = rec - src_check -$ gosub extra_filnam -$ if (f$element(1,"\",rec) .eqs. "\") then goto mrdone -$MRSLOOP: -$ read/end=mrdone min rec -$ gosub extra_filnam -$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop -$MRDONE: -$ close min -$ close mod -$ return -$!------------------------------------------------------------------------------ -$! -$! Take record extracted in crea_olist and split it into single filenames -$! -$EXTRA_FILNAM: -$ myrec = f$edit(rec - "\", "trim,compress") -$ i = 0 -$FELOOP: -$ srcfil = f$element(i," ", myrec) -$ if (srcfil .nes. " ") -$ then -$ write mod f$parse(srcfil,,,"NAME"), ".obj" -$ i = i + 1 -$ goto feloop -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! Find current Zlib version number -$! -$FIND_VERSION: -$ open/read h_in 'v_file' -$hloop: -$ read/end=hdone h_in rec -$ rec = f$edit(rec,"TRIM") -$ if (f$extract(0,1,rec) .nes. "#") then goto hloop -$ rec = f$edit(rec - "#", "TRIM") -$ if f$element(0," ",rec) .nes. "define" then goto hloop -$ if f$element(1," ",rec) .eqs. v_string -$ then -$ version = 'f$element(2," ",rec)' -$ goto hdone -$ endif -$ goto hloop -$hdone: -$ close h_in -$ return -$!------------------------------------------------------------------------------ -$! -$CHECK_CONFIG: -$! -$ in_ldef = f$locate(cdef,libdefs) -$ if (in_ldef .lt. f$length(libdefs)) -$ then -$ write aconf "#define ''cdef' 1" -$ libdefs = f$extract(0,in_ldef,libdefs) + - - f$extract(in_ldef + f$length(cdef) + 1, - - f$length(libdefs) - in_ldef - f$length(cdef) - 1, - - libdefs) -$ else -$ if (f$type('cdef') .eqs. "INTEGER") -$ then -$ write aconf "#define ''cdef' ", 'cdef' -$ else -$ if (f$type('cdef') .eqs. "STRING") -$ then -$ write aconf "#define ''cdef' ", """", '''cdef'', """" -$ else -$ gosub check_cc_def -$ endif -$ endif -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! Check if this is a define relating to the properties of the C/C++ -$! compiler -$! -$ CHECK_CC_DEF: -$ if (cdef .eqs. "_LARGEFILE64_SOURCE") -$ then -$ copy sys$input: 'tc' -$ deck -#include "tconfig" -#define _LARGEFILE -#include - -int main(){ -FILE *fp; - fp = fopen("temp.txt","r"); - fseeko(fp,1,SEEK_SET); - fclose(fp); -} - -$ eod -$ test_inv = false -$ comm_h = false -$ gosub cc_prop_check -$ return -$ endif -$ write aconf "/* ", line, " */" -$ return -$!------------------------------------------------------------------------------ -$! -$! Check for properties of C/C++ compiler -$! -$! Version history -$! 0.01 20031020 First version to receive a number -$! 0.02 20031022 Added logic for defines with value -$! 0.03 20040309 Make sure local config file gets not deleted -$! 0.04 20041230 Also write include for configure run -$! 0.05 20050103 Add processing of "comment defines" -$CC_PROP_CHECK: -$ cc_prop = true -$ is_need = false -$ is_need = (f$extract(0,4,cdef) .eqs. "NEED") .or. (test_inv .eq. true) -$ if f$search(th) .eqs. "" then create 'th' -$ set message/nofac/noident/nosever/notext -$ on error then continue -$ cc 'tmpnam' -$ if .not. ($status) then cc_prop = false -$ on error then continue -$! The headers might lie about the capabilities of the RTL -$ link 'tmpnam',tmp.opt/opt -$ if .not. ($status) then cc_prop = false -$ set message/fac/ident/sever/text -$ on error then goto err_exit -$ delete/nolog 'tmpnam'.*;*/exclude='th' -$ if (cc_prop .and. .not. is_need) .or. - - (.not. cc_prop .and. is_need) -$ then -$ write sys$output "Checking for ''cdef'... yes" -$ if f$type('cdef_val'_yes) .nes. "" -$ then -$ if f$type('cdef_val'_yes) .eqs. "INTEGER" - - then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_yes) -$ if f$type('cdef_val'_yes) .eqs. "STRING" - - then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_yes) -$ else -$ call write_config f$fao("#define !AS 1",cdef) -$ endif -$ if (cdef .eqs. "HAVE_FSEEKO") .or. (cdef .eqs. "_LARGE_FILES") .or. - - (cdef .eqs. "_LARGEFILE64_SOURCE") then - - call write_config f$string("#define _LARGEFILE 1") -$ else -$ write sys$output "Checking for ''cdef'... no" -$ if (comm_h) -$ then - call write_config f$fao("/* !AS */",line) -$ else -$ if f$type('cdef_val'_no) .nes. "" -$ then -$ if f$type('cdef_val'_no) .eqs. "INTEGER" - - then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_no) -$ if f$type('cdef_val'_no) .eqs. "STRING" - - then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_no) -$ else -$ call write_config f$fao("#undef !AS",cdef) -$ endif -$ endif -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! Check for properties of C/C++ compiler with multiple result values -$! -$! Version history -$! 0.01 20040127 First version -$! 0.02 20050103 Reconcile changes from cc_prop up to version 0.05 -$CC_MPROP_CHECK: -$ cc_prop = true -$ i = 1 -$ idel = 1 -$ MT_LOOP: -$ if f$type(result_'i') .eqs. "STRING" -$ then -$ set message/nofac/noident/nosever/notext -$ on error then continue -$ cc 'tmpnam'_'i' -$ if .not. ($status) then cc_prop = false -$ on error then continue -$! The headers might lie about the capabilities of the RTL -$ link 'tmpnam'_'i',tmp.opt/opt -$ if .not. ($status) then cc_prop = false -$ set message/fac/ident/sever/text -$ on error then goto err_exit -$ delete/nolog 'tmpnam'_'i'.*;* -$ if (cc_prop) -$ then -$ write sys$output "Checking for ''cdef'... ", mdef_'i' -$ if f$type(mdef_'i') .eqs. "INTEGER" - - then call write_config f$fao("#define !AS !UL",cdef,mdef_'i') -$ if f$type('cdef_val'_yes) .eqs. "STRING" - - then call write_config f$fao("#define !AS !AS",cdef,mdef_'i') -$ goto msym_clean -$ else -$ i = i + 1 -$ goto mt_loop -$ endif -$ endif -$ write sys$output "Checking for ''cdef'... no" -$ call write_config f$fao("#undef !AS",cdef) -$ MSYM_CLEAN: -$ if (idel .le. msym_max) -$ then -$ delete/sym mdef_'idel' -$ idel = idel + 1 -$ goto msym_clean -$ endif -$ return -$!------------------------------------------------------------------------------ -$! -$! Analyze Object files for OpenVMS AXP to extract Procedure and Data -$! information to build a symbol vector for a shareable image -$! All the "brains" of this logic was suggested by Hartmut Becker -$! (Hartmut.Becker@compaq.com). All the bugs were introduced by me -$! (zinser@zinser.no-ip.info), so if you do have problem reports please do not -$! bother Hartmut/HP, but get in touch with me -$! -$! Version history -$! 0.01 20040406 Skip over shareable images in option file -$! 0.02 20041109 Fix option file for shareable images with case_sensitive=YES -$! 0.03 20050107 Skip over Identification labels in option file -$! 0.04 20060117 Add uppercase alias to code compiled with /name=as_is -$! -$ ANAL_OBJ_AXP: Subroutine -$ V = 'F$Verify(0) -$ SAY := "WRITE_ SYS$OUTPUT" -$ -$ IF F$SEARCH("''P1'") .EQS. "" -$ THEN -$ SAY "ANAL_OBJ_AXP-E-NOSUCHFILE: Error, inputfile ''p1' not available" -$ goto exit_aa -$ ENDIF -$ IF "''P2'" .EQS. "" -$ THEN -$ SAY "ANAL_OBJ_AXP: Error, no output file provided" -$ goto exit_aa -$ ENDIF -$ -$ open/read in 'p1 -$ create a.tmp -$ open/append atmp a.tmp -$ loop: -$ read/end=end_loop in line -$ if f$locate("/SHARE",f$edit(line,"upcase")) .lt. f$length(line) -$ then -$ write sys$output "ANAL_SKP_SHR-i-skipshare, ''line'" -$ goto loop -$ endif -$ if f$locate("IDENTIFICATION=",f$edit(line,"upcase")) .lt. f$length(line) -$ then -$ write sys$output "ANAL_OBJ_AXP-i-ident: Identification ", - - f$element(1,"=",line) -$ goto loop -$ endif -$ f= f$search(line) -$ if f .eqs. "" -$ then -$ write sys$output "ANAL_OBJ_AXP-w-nosuchfile, ''line'" -$ goto loop -$ endif -$ define/user sys$output nl: -$ define/user sys$error nl: -$ anal/obj/gsd 'f /out=x.tmp -$ open/read xtmp x.tmp -$ XLOOP: -$ read/end=end_xloop xtmp xline -$ xline = f$edit(xline,"compress") -$ write atmp xline -$ goto xloop -$ END_XLOOP: -$ close xtmp -$ goto loop -$ end_loop: -$ close in -$ close atmp -$ if f$search("a.tmp") .eqs. "" - - then $ exit -$ ! all global definitions -$ search a.tmp "symbol:","EGSY$V_DEF 1","EGSY$V_NORM 1"/out=b.tmp -$ ! all procedures -$ search b.tmp "EGSY$V_NORM 1"/wind=(0,1) /out=c.tmp -$ search c.tmp "symbol:"/out=d.tmp -$ define/user sys$output nl: -$ edito/edt/command=sys$input d.tmp -sub/symbol: "/symbol_vector=(/whole -sub/"/=PROCEDURE)/whole -exit -$ ! all data -$ search b.tmp "EGSY$V_DEF 1"/wind=(0,1) /out=e.tmp -$ search e.tmp "symbol:"/out=f.tmp -$ define/user sys$output nl: -$ edito/edt/command=sys$input f.tmp -sub/symbol: "/symbol_vector=(/whole -sub/"/=DATA)/whole -exit -$ sort/nodupl d.tmp,f.tmp g.tmp -$ open/read raw_vector g.tmp -$ open/write case_vector 'p2' -$ RAWLOOP: -$ read/end=end_rawloop raw_vector raw_element -$ write case_vector raw_element -$ if f$locate("=PROCEDURE)",raw_element) .lt. f$length(raw_element) -$ then -$ name = f$element(1,"=",raw_element) - "(" -$ if f$edit(name,"UPCASE") .nes. name then - - write case_vector f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)", - - f$edit(name,"UPCASE"), name) -$ endif -$ if f$locate("=DATA)",raw_element) .lt. f$length(raw_element) -$ then -$ name = f$element(1,"=",raw_element) - "(" -$ if f$edit(name,"UPCASE") .nes. name then - - write case_vector f$fao(" symbol_vector=(!AS/!AS=DATA)", - - f$edit(name,"UPCASE"), name) -$ endif -$ goto rawloop -$ END_RAWLOOP: -$ close raw_vector -$ close case_vector -$ delete a.tmp;*,b.tmp;*,c.tmp;*,d.tmp;*,e.tmp;*,f.tmp;*,g.tmp;* -$ if f$search("x.tmp") .nes. "" - - then $ delete x.tmp;* -$! -$ EXIT_AA: -$ if V then set verify -$ endsubroutine -$!------------------------------------------------------------------------------ -$! -$! Write configuration to both permanent and temporary config file -$! -$! Version history -$! 0.01 20031029 First version to receive a number -$! -$WRITE_CONFIG: SUBROUTINE -$ write aconf 'p1' -$ open/append confh 'th' -$ write confh 'p1' -$ close confh -$ENDSUBROUTINE -$!------------------------------------------------------------------------------ diff --git a/zlib/minigzip.c b/zlib/minigzip.c deleted file mode 100755 index 9825ccc..0000000 --- a/zlib/minigzip.c +++ /dev/null @@ -1,440 +0,0 @@ -/* minigzip.c -- simulate gzip using the zlib compression library - * Copyright (C) 1995-2006, 2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * minigzip is a minimal implementation of the gzip utility. This is - * only an example of using zlib and isn't meant to replace the - * full-featured gzip. No attempt is made to deal with file systems - * limiting names to 14 or 8+3 characters, etc... Error checking is - * very limited. So use minigzip only for testing; use gzip for the - * real thing. On MSDOS, use only on file names without extension - * or in pipe mode. - */ - -/* @(#) $Id$ */ - -#include "zlib.h" -#include - -#ifdef STDC -# include -# include -#endif - -#ifdef USE_MMAP -# include -# include -# include -#endif - -#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__) -# include -# include -# ifdef UNDER_CE -# include -# endif -# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) -#else -# define SET_BINARY_MODE(file) -#endif - -#ifdef VMS -# define unlink delete -# define GZ_SUFFIX "-gz" -#endif -#ifdef RISCOS -# define unlink remove -# define GZ_SUFFIX "-gz" -# define fileno(file) file->__file -#endif -#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include /* for fileno */ -#endif - -#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE) -#ifndef WIN32 /* unlink already in stdio.h for WIN32 */ - extern int unlink OF((const char *)); -#endif -#endif - -#if defined(UNDER_CE) -# include -# define perror(s) pwinerror(s) - -/* Map the Windows error number in ERROR to a locale-dependent error - message string and return a pointer to it. Typically, the values - for ERROR come from GetLastError. - - The string pointed to shall not be modified by the application, - but may be overwritten by a subsequent call to strwinerror - - The strwinerror function does not change the current setting - of GetLastError. */ - -static char *strwinerror (error) - DWORD error; -{ - static char buf[1024]; - - wchar_t *msgbuf; - DWORD lasterr = GetLastError(); - DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM - | FORMAT_MESSAGE_ALLOCATE_BUFFER, - NULL, - error, - 0, /* Default language */ - (LPVOID)&msgbuf, - 0, - NULL); - if (chars != 0) { - /* If there is an \r\n appended, zap it. */ - if (chars >= 2 - && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') { - chars -= 2; - msgbuf[chars] = 0; - } - - if (chars > sizeof (buf) - 1) { - chars = sizeof (buf) - 1; - msgbuf[chars] = 0; - } - - wcstombs(buf, msgbuf, chars + 1); - LocalFree(msgbuf); - } - else { - sprintf(buf, "unknown win32 error (%ld)", error); - } - - SetLastError(lasterr); - return buf; -} - -static void pwinerror (s) - const char *s; -{ - if (s && *s) - fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ())); - else - fprintf(stderr, "%s\n", strwinerror(GetLastError ())); -} - -#endif /* UNDER_CE */ - -#ifndef GZ_SUFFIX -# define GZ_SUFFIX ".gz" -#endif -#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1) - -#define BUFLEN 16384 -#define MAX_NAME_LEN 1024 - -#ifdef MAXSEG_64K -# define local static - /* Needed for systems with limitation on stack size. */ -#else -# define local -#endif - -char *prog; - -void error OF((const char *msg)); -void gz_compress OF((FILE *in, gzFile out)); -#ifdef USE_MMAP -int gz_compress_mmap OF((FILE *in, gzFile out)); -#endif -void gz_uncompress OF((gzFile in, FILE *out)); -void file_compress OF((char *file, char *mode)); -void file_uncompress OF((char *file)); -int main OF((int argc, char *argv[])); - -/* =========================================================================== - * Display error message and exit - */ -void error(msg) - const char *msg; -{ - fprintf(stderr, "%s: %s\n", prog, msg); - exit(1); -} - -/* =========================================================================== - * Compress input to output then close both files. - */ - -void gz_compress(in, out) - FILE *in; - gzFile out; -{ - local char buf[BUFLEN]; - int len; - int err; - -#ifdef USE_MMAP - /* Try first compressing with mmap. If mmap fails (minigzip used in a - * pipe), use the normal fread loop. - */ - if (gz_compress_mmap(in, out) == Z_OK) return; -#endif - for (;;) { - len = (int)fread(buf, 1, sizeof(buf), in); - if (ferror(in)) { - perror("fread"); - exit(1); - } - if (len == 0) break; - - if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err)); - } - fclose(in); - if (gzclose(out) != Z_OK) error("failed gzclose"); -} - -#ifdef USE_MMAP /* MMAP version, Miguel Albrecht */ - -/* Try compressing the input file at once using mmap. Return Z_OK if - * if success, Z_ERRNO otherwise. - */ -int gz_compress_mmap(in, out) - FILE *in; - gzFile out; -{ - int len; - int err; - int ifd = fileno(in); - caddr_t buf; /* mmap'ed buffer for the entire input file */ - off_t buf_len; /* length of the input file */ - struct stat sb; - - /* Determine the size of the file, needed for mmap: */ - if (fstat(ifd, &sb) < 0) return Z_ERRNO; - buf_len = sb.st_size; - if (buf_len <= 0) return Z_ERRNO; - - /* Now do the actual mmap: */ - buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0); - if (buf == (caddr_t)(-1)) return Z_ERRNO; - - /* Compress the whole file at once: */ - len = gzwrite(out, (char *)buf, (unsigned)buf_len); - - if (len != (int)buf_len) error(gzerror(out, &err)); - - munmap(buf, buf_len); - fclose(in); - if (gzclose(out) != Z_OK) error("failed gzclose"); - return Z_OK; -} -#endif /* USE_MMAP */ - -/* =========================================================================== - * Uncompress input to output then close both files. - */ -void gz_uncompress(in, out) - gzFile in; - FILE *out; -{ - local char buf[BUFLEN]; - int len; - int err; - - for (;;) { - len = gzread(in, buf, sizeof(buf)); - if (len < 0) error (gzerror(in, &err)); - if (len == 0) break; - - if ((int)fwrite(buf, 1, (unsigned)len, out) != len) { - error("failed fwrite"); - } - } - if (fclose(out)) error("failed fclose"); - - if (gzclose(in) != Z_OK) error("failed gzclose"); -} - - -/* =========================================================================== - * Compress the given file: create a corresponding .gz file and remove the - * original. - */ -void file_compress(file, mode) - char *file; - char *mode; -{ - local char outfile[MAX_NAME_LEN]; - FILE *in; - gzFile out; - - if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) { - fprintf(stderr, "%s: filename too long\n", prog); - exit(1); - } - - strcpy(outfile, file); - strcat(outfile, GZ_SUFFIX); - - in = fopen(file, "rb"); - if (in == NULL) { - perror(file); - exit(1); - } - out = gzopen(outfile, mode); - if (out == NULL) { - fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile); - exit(1); - } - gz_compress(in, out); - - unlink(file); -} - - -/* =========================================================================== - * Uncompress the given file and remove the original. - */ -void file_uncompress(file) - char *file; -{ - local char buf[MAX_NAME_LEN]; - char *infile, *outfile; - FILE *out; - gzFile in; - size_t len = strlen(file); - - if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) { - fprintf(stderr, "%s: filename too long\n", prog); - exit(1); - } - - strcpy(buf, file); - - if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) { - infile = file; - outfile = buf; - outfile[len-3] = '\0'; - } else { - outfile = file; - infile = buf; - strcat(infile, GZ_SUFFIX); - } - in = gzopen(infile, "rb"); - if (in == NULL) { - fprintf(stderr, "%s: can't gzopen %s\n", prog, infile); - exit(1); - } - out = fopen(outfile, "wb"); - if (out == NULL) { - perror(file); - exit(1); - } - - gz_uncompress(in, out); - - unlink(infile); -} - - -/* =========================================================================== - * Usage: minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...] - * -c : write to standard output - * -d : decompress - * -f : compress with Z_FILTERED - * -h : compress with Z_HUFFMAN_ONLY - * -r : compress with Z_RLE - * -1 to -9 : compression level - */ - -int main(argc, argv) - int argc; - char *argv[]; -{ - int copyout = 0; - int uncompr = 0; - gzFile file; - char *bname, outmode[20]; - - strcpy(outmode, "wb6 "); - - prog = argv[0]; - bname = strrchr(argv[0], '/'); - if (bname) - bname++; - else - bname = argv[0]; - argc--, argv++; - - if (!strcmp(bname, "gunzip")) - uncompr = 1; - else if (!strcmp(bname, "zcat")) - copyout = uncompr = 1; - - while (argc > 0) { - if (strcmp(*argv, "-c") == 0) - copyout = 1; - else if (strcmp(*argv, "-d") == 0) - uncompr = 1; - else if (strcmp(*argv, "-f") == 0) - outmode[3] = 'f'; - else if (strcmp(*argv, "-h") == 0) - outmode[3] = 'h'; - else if (strcmp(*argv, "-r") == 0) - outmode[3] = 'R'; - else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' && - (*argv)[2] == 0) - outmode[2] = (*argv)[1]; - else - break; - argc--, argv++; - } - if (outmode[3] == ' ') - outmode[3] = 0; - if (argc == 0) { - SET_BINARY_MODE(stdin); - SET_BINARY_MODE(stdout); - if (uncompr) { - file = gzdopen(fileno(stdin), "rb"); - if (file == NULL) error("can't gzdopen stdin"); - gz_uncompress(file, stdout); - } else { - file = gzdopen(fileno(stdout), outmode); - if (file == NULL) error("can't gzdopen stdout"); - gz_compress(stdin, file); - } - } else { - if (copyout) { - SET_BINARY_MODE(stdout); - } - do { - if (uncompr) { - if (copyout) { - file = gzopen(*argv, "rb"); - if (file == NULL) - fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv); - else - gz_uncompress(file, stdout); - } else { - file_uncompress(*argv); - } - } else { - if (copyout) { - FILE * in = fopen(*argv, "rb"); - - if (in == NULL) { - perror(*argv); - } else { - file = gzdopen(fileno(stdout), outmode); - if (file == NULL) error("can't gzdopen stdout"); - - gz_compress(in, file); - } - - } else { - file_compress(*argv, outmode); - } - } - } while (argv++, --argc); - } - return 0; -} diff --git a/zlib/treebuild.xml b/zlib/treebuild.xml deleted file mode 100755 index 6b8f542..0000000 --- a/zlib/treebuild.xml +++ /dev/null @@ -1,116 +0,0 @@ - - - - zip compression library - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/zlib/trees.c b/zlib/trees.c deleted file mode 100755 index 56e9bb1..0000000 --- a/zlib/trees.c +++ /dev/null @@ -1,1244 +0,0 @@ -/* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2010 Jean-loup Gailly - * detect_data_type() function provided freely by Cosmin Truta, 2006 - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * ALGORITHM - * - * The "deflation" process uses several Huffman trees. The more - * common source values are represented by shorter bit sequences. - * - * Each code tree is stored in a compressed form which is itself - * a Huffman encoding of the lengths of all the code strings (in - * ascending order by source values). The actual code strings are - * reconstructed from the lengths in the inflate process, as described - * in the deflate specification. - * - * REFERENCES - * - * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". - * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc - * - * Storer, James A. - * Data Compression: Methods and Theory, pp. 49-50. - * Computer Science Press, 1988. ISBN 0-7167-8156-5. - * - * Sedgewick, R. - * Algorithms, p290. - * Addison-Wesley, 1983. ISBN 0-201-06672-6. - */ - -/* @(#) $Id$ */ - -/* #define GEN_TREES_H */ - -#include "deflate.h" - -#ifdef DEBUG -# include -#endif - -/* =========================================================================== - * Constants - */ - -#define MAX_BL_BITS 7 -/* Bit length codes must not exceed MAX_BL_BITS bits */ - -#define END_BLOCK 256 -/* end of block literal code */ - -#define REP_3_6 16 -/* repeat previous bit length 3-6 times (2 bits of repeat count) */ - -#define REPZ_3_10 17 -/* repeat a zero length 3-10 times (3 bits of repeat count) */ - -#define REPZ_11_138 18 -/* repeat a zero length 11-138 times (7 bits of repeat count) */ - -local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ - = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; - -local const int extra_dbits[D_CODES] /* extra bits for each distance code */ - = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ - = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; - -local const uch bl_order[BL_CODES] - = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; -/* The lengths of the bit length codes are sent in order of decreasing - * probability, to avoid transmitting the lengths for unused bit length codes. - */ - -#define Buf_size (8 * 2*sizeof(char)) -/* Number of bits used within bi_buf. (bi_buf might be implemented on - * more than 16 bits on some systems.) - */ - -/* =========================================================================== - * Local data. These are initialized only once. - */ - -#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ - -#if defined(GEN_TREES_H) || !defined(STDC) -/* non ANSI compilers may not accept trees.h */ - -local ct_data static_ltree[L_CODES+2]; -/* The static literal tree. Since the bit lengths are imposed, there is no - * need for the L_CODES extra codes used during heap construction. However - * The codes 286 and 287 are needed to build a canonical tree (see _tr_init - * below). - */ - -local ct_data static_dtree[D_CODES]; -/* The static distance tree. (Actually a trivial tree since all codes use - * 5 bits.) - */ - -uch _dist_code[DIST_CODE_LEN]; -/* Distance codes. The first 256 values correspond to the distances - * 3 .. 258, the last 256 values correspond to the top 8 bits of - * the 15 bit distances. - */ - -uch _length_code[MAX_MATCH-MIN_MATCH+1]; -/* length code for each normalized match length (0 == MIN_MATCH) */ - -local int base_length[LENGTH_CODES]; -/* First normalized length for each code (0 = MIN_MATCH) */ - -local int base_dist[D_CODES]; -/* First normalized distance for each code (0 = distance of 1) */ - -#else -# include "trees.h" -#endif /* GEN_TREES_H */ - -struct static_tree_desc_s { - const ct_data *static_tree; /* static tree or NULL */ - const intf *extra_bits; /* extra bits for each code or NULL */ - int extra_base; /* base index for extra_bits */ - int elems; /* max number of elements in the tree */ - int max_length; /* max bit length for the codes */ -}; - -local static_tree_desc static_l_desc = -{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; - -local static_tree_desc static_d_desc = -{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; - -local static_tree_desc static_bl_desc = -{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; - -/* =========================================================================== - * Local (static) routines in this file. - */ - -local void tr_static_init OF((void)); -local void init_block OF((deflate_state *s)); -local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); -local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); -local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); -local void build_tree OF((deflate_state *s, tree_desc *desc)); -local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); -local int build_bl_tree OF((deflate_state *s)); -local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, - int blcodes)); -local void compress_block OF((deflate_state *s, ct_data *ltree, - ct_data *dtree)); -local int detect_data_type OF((deflate_state *s)); -local unsigned bi_reverse OF((unsigned value, int length)); -local void bi_windup OF((deflate_state *s)); -local void bi_flush OF((deflate_state *s)); -local void copy_block OF((deflate_state *s, charf *buf, unsigned len, - int header)); - -#ifdef GEN_TREES_H -local void gen_trees_header OF((void)); -#endif - -#ifndef DEBUG -# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) - /* Send a code of the given tree. c and tree must not have side effects */ - -#else /* DEBUG */ -# define send_code(s, c, tree) \ - { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ - send_bits(s, tree[c].Code, tree[c].Len); } -#endif - -/* =========================================================================== - * Output a short LSB first on the stream. - * IN assertion: there is enough room in pendingBuf. - */ -#define put_short(s, w) { \ - put_byte(s, (uch)((w) & 0xff)); \ - put_byte(s, (uch)((ush)(w) >> 8)); \ -} - -/* =========================================================================== - * Send a value on a given number of bits. - * IN assertion: length <= 16 and value fits in length bits. - */ -#ifdef DEBUG -local void send_bits OF((deflate_state *s, int value, int length)); - -local void send_bits(s, value, length) - deflate_state *s; - int value; /* value to send */ - int length; /* number of bits */ -{ - Tracevv((stderr," l %2d v %4x ", length, value)); - Assert(length > 0 && length <= 15, "invalid length"); - s->bits_sent += (ulg)length; - - /* If not enough room in bi_buf, use (valid) bits from bi_buf and - * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) - * unused bits in value. - */ - if (s->bi_valid > (int)Buf_size - length) { - s->bi_buf |= (ush)value << s->bi_valid; - put_short(s, s->bi_buf); - s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); - s->bi_valid += length - Buf_size; - } else { - s->bi_buf |= (ush)value << s->bi_valid; - s->bi_valid += length; - } -} -#else /* !DEBUG */ - -#define send_bits(s, value, length) \ -{ int len = length;\ - if (s->bi_valid > (int)Buf_size - len) {\ - int val = value;\ - s->bi_buf |= (ush)val << s->bi_valid;\ - put_short(s, s->bi_buf);\ - s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ - s->bi_valid += len - Buf_size;\ - } else {\ - s->bi_buf |= (ush)(value) << s->bi_valid;\ - s->bi_valid += len;\ - }\ -} -#endif /* DEBUG */ - - -/* the arguments must not have side effects */ - -/* =========================================================================== - * Initialize the various 'constant' tables. - */ -local void tr_static_init() -{ -#if defined(GEN_TREES_H) || !defined(STDC) - static int static_init_done = 0; - int n; /* iterates over tree elements */ - int bits; /* bit counter */ - int length; /* length value */ - int code; /* code value */ - int dist; /* distance index */ - ush bl_count[MAX_BITS+1]; - /* number of codes at each bit length for an optimal tree */ - - if (static_init_done) return; - - /* For some embedded targets, global variables are not initialized: */ -#ifdef NO_INIT_GLOBAL_POINTERS - static_l_desc.static_tree = static_ltree; - static_l_desc.extra_bits = extra_lbits; - static_d_desc.static_tree = static_dtree; - static_d_desc.extra_bits = extra_dbits; - static_bl_desc.extra_bits = extra_blbits; -#endif - - /* Initialize the mapping length (0..255) -> length code (0..28) */ - length = 0; - for (code = 0; code < LENGTH_CODES-1; code++) { - base_length[code] = length; - for (n = 0; n < (1< dist code (0..29) */ - dist = 0; - for (code = 0 ; code < 16; code++) { - base_dist[code] = dist; - for (n = 0; n < (1<>= 7; /* from now on, all distances are divided by 128 */ - for ( ; code < D_CODES; code++) { - base_dist[code] = dist << 7; - for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { - _dist_code[256 + dist++] = (uch)code; - } - } - Assert (dist == 256, "tr_static_init: 256+dist != 512"); - - /* Construct the codes of the static literal tree */ - for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; - n = 0; - while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; - while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; - while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; - while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; - /* Codes 286 and 287 do not exist, but we must include them in the - * tree construction to get a canonical Huffman tree (longest code - * all ones) - */ - gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); - - /* The static distance tree is trivial: */ - for (n = 0; n < D_CODES; n++) { - static_dtree[n].Len = 5; - static_dtree[n].Code = bi_reverse((unsigned)n, 5); - } - static_init_done = 1; - -# ifdef GEN_TREES_H - gen_trees_header(); -# endif -#endif /* defined(GEN_TREES_H) || !defined(STDC) */ -} - -/* =========================================================================== - * Genererate the file trees.h describing the static trees. - */ -#ifdef GEN_TREES_H -# ifndef DEBUG -# include -# endif - -# define SEPARATOR(i, last, width) \ - ((i) == (last)? "\n};\n\n" : \ - ((i) % (width) == (width)-1 ? ",\n" : ", ")) - -void gen_trees_header() -{ - FILE *header = fopen("trees.h", "w"); - int i; - - Assert (header != NULL, "Can't open trees.h"); - fprintf(header, - "/* header created automatically with -DGEN_TREES_H */\n\n"); - - fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); - for (i = 0; i < L_CODES+2; i++) { - fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, - static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); - } - - fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, - static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); - } - - fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n"); - for (i = 0; i < DIST_CODE_LEN; i++) { - fprintf(header, "%2u%s", _dist_code[i], - SEPARATOR(i, DIST_CODE_LEN-1, 20)); - } - - fprintf(header, - "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); - for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { - fprintf(header, "%2u%s", _length_code[i], - SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); - } - - fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); - for (i = 0; i < LENGTH_CODES; i++) { - fprintf(header, "%1u%s", base_length[i], - SEPARATOR(i, LENGTH_CODES-1, 20)); - } - - fprintf(header, "local const int base_dist[D_CODES] = {\n"); - for (i = 0; i < D_CODES; i++) { - fprintf(header, "%5u%s", base_dist[i], - SEPARATOR(i, D_CODES-1, 10)); - } - - fclose(header); -} -#endif /* GEN_TREES_H */ - -/* =========================================================================== - * Initialize the tree data structures for a new zlib stream. - */ -void ZLIB_INTERNAL _tr_init(s) - deflate_state *s; -{ - tr_static_init(); - - s->l_desc.dyn_tree = s->dyn_ltree; - s->l_desc.stat_desc = &static_l_desc; - - s->d_desc.dyn_tree = s->dyn_dtree; - s->d_desc.stat_desc = &static_d_desc; - - s->bl_desc.dyn_tree = s->bl_tree; - s->bl_desc.stat_desc = &static_bl_desc; - - s->bi_buf = 0; - s->bi_valid = 0; - s->last_eob_len = 8; /* enough lookahead for inflate */ -#ifdef DEBUG - s->compressed_len = 0L; - s->bits_sent = 0L; -#endif - - /* Initialize the first block of the first file: */ - init_block(s); -} - -/* =========================================================================== - * Initialize a new block. - */ -local void init_block(s) - deflate_state *s; -{ - int n; /* iterates over tree elements */ - - /* Initialize the trees. */ - for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; - for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; - for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; - - s->dyn_ltree[END_BLOCK].Freq = 1; - s->opt_len = s->static_len = 0L; - s->last_lit = s->matches = 0; -} - -#define SMALLEST 1 -/* Index within the heap array of least frequent node in the Huffman tree */ - - -/* =========================================================================== - * Remove the smallest element from the heap and recreate the heap with - * one less element. Updates heap and heap_len. - */ -#define pqremove(s, tree, top) \ -{\ - top = s->heap[SMALLEST]; \ - s->heap[SMALLEST] = s->heap[s->heap_len--]; \ - pqdownheap(s, tree, SMALLEST); \ -} - -/* =========================================================================== - * Compares to subtrees, using the tree depth as tie breaker when - * the subtrees have equal frequency. This minimizes the worst case length. - */ -#define smaller(tree, n, m, depth) \ - (tree[n].Freq < tree[m].Freq || \ - (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) - -/* =========================================================================== - * Restore the heap property by moving down the tree starting at node k, - * exchanging a node with the smallest of its two sons if necessary, stopping - * when the heap property is re-established (each father smaller than its - * two sons). - */ -local void pqdownheap(s, tree, k) - deflate_state *s; - ct_data *tree; /* the tree to restore */ - int k; /* node to move down */ -{ - int v = s->heap[k]; - int j = k << 1; /* left son of k */ - while (j <= s->heap_len) { - /* Set j to the smallest of the two sons: */ - if (j < s->heap_len && - smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { - j++; - } - /* Exit if v is smaller than both sons */ - if (smaller(tree, v, s->heap[j], s->depth)) break; - - /* Exchange v with the smallest son */ - s->heap[k] = s->heap[j]; k = j; - - /* And continue down the tree, setting j to the left son of k */ - j <<= 1; - } - s->heap[k] = v; -} - -/* =========================================================================== - * Compute the optimal bit lengths for a tree and update the total bit length - * for the current block. - * IN assertion: the fields freq and dad are set, heap[heap_max] and - * above are the tree nodes sorted by increasing frequency. - * OUT assertions: the field len is set to the optimal bit length, the - * array bl_count contains the frequencies for each bit length. - * The length opt_len is updated; static_len is also updated if stree is - * not null. - */ -local void gen_bitlen(s, desc) - deflate_state *s; - tree_desc *desc; /* the tree descriptor */ -{ - ct_data *tree = desc->dyn_tree; - int max_code = desc->max_code; - const ct_data *stree = desc->stat_desc->static_tree; - const intf *extra = desc->stat_desc->extra_bits; - int base = desc->stat_desc->extra_base; - int max_length = desc->stat_desc->max_length; - int h; /* heap index */ - int n, m; /* iterate over the tree elements */ - int bits; /* bit length */ - int xbits; /* extra bits */ - ush f; /* frequency */ - int overflow = 0; /* number of elements with bit length too large */ - - for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; - - /* In a first pass, compute the optimal bit lengths (which may - * overflow in the case of the bit length tree). - */ - tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ - - for (h = s->heap_max+1; h < HEAP_SIZE; h++) { - n = s->heap[h]; - bits = tree[tree[n].Dad].Len + 1; - if (bits > max_length) bits = max_length, overflow++; - tree[n].Len = (ush)bits; - /* We overwrite tree[n].Dad which is no longer needed */ - - if (n > max_code) continue; /* not a leaf node */ - - s->bl_count[bits]++; - xbits = 0; - if (n >= base) xbits = extra[n-base]; - f = tree[n].Freq; - s->opt_len += (ulg)f * (bits + xbits); - if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); - } - if (overflow == 0) return; - - Trace((stderr,"\nbit length overflow\n")); - /* This happens for example on obj2 and pic of the Calgary corpus */ - - /* Find the first bit length which could increase: */ - do { - bits = max_length-1; - while (s->bl_count[bits] == 0) bits--; - s->bl_count[bits]--; /* move one leaf down the tree */ - s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ - s->bl_count[max_length]--; - /* The brother of the overflow item also moves one step up, - * but this does not affect bl_count[max_length] - */ - overflow -= 2; - } while (overflow > 0); - - /* Now recompute all bit lengths, scanning in increasing frequency. - * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all - * lengths instead of fixing only the wrong ones. This idea is taken - * from 'ar' written by Haruhiko Okumura.) - */ - for (bits = max_length; bits != 0; bits--) { - n = s->bl_count[bits]; - while (n != 0) { - m = s->heap[--h]; - if (m > max_code) continue; - if ((unsigned) tree[m].Len != (unsigned) bits) { - Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); - s->opt_len += ((long)bits - (long)tree[m].Len) - *(long)tree[m].Freq; - tree[m].Len = (ush)bits; - } - n--; - } - } -} - -/* =========================================================================== - * Generate the codes for a given tree and bit counts (which need not be - * optimal). - * IN assertion: the array bl_count contains the bit length statistics for - * the given tree and the field len is set for all tree elements. - * OUT assertion: the field code is set for all tree elements of non - * zero code length. - */ -local void gen_codes (tree, max_code, bl_count) - ct_data *tree; /* the tree to decorate */ - int max_code; /* largest code with non zero frequency */ - ushf *bl_count; /* number of codes at each bit length */ -{ - ush next_code[MAX_BITS+1]; /* next code value for each bit length */ - ush code = 0; /* running code value */ - int bits; /* bit index */ - int n; /* code index */ - - /* The distribution counts are first used to generate the code values - * without bit reversal. - */ - for (bits = 1; bits <= MAX_BITS; bits++) { - next_code[bits] = code = (code + bl_count[bits-1]) << 1; - } - /* Check that the bit counts in bl_count are consistent. The last code - * must be all ones. - */ - Assert (code + bl_count[MAX_BITS]-1 == (1<dyn_tree; - const ct_data *stree = desc->stat_desc->static_tree; - int elems = desc->stat_desc->elems; - int n, m; /* iterate over heap elements */ - int max_code = -1; /* largest code with non zero frequency */ - int node; /* new node being created */ - - /* Construct the initial heap, with least frequent element in - * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. - * heap[0] is not used. - */ - s->heap_len = 0, s->heap_max = HEAP_SIZE; - - for (n = 0; n < elems; n++) { - if (tree[n].Freq != 0) { - s->heap[++(s->heap_len)] = max_code = n; - s->depth[n] = 0; - } else { - tree[n].Len = 0; - } - } - - /* The pkzip format requires that at least one distance code exists, - * and that at least one bit should be sent even if there is only one - * possible code. So to avoid special checks later on we force at least - * two codes of non zero frequency. - */ - while (s->heap_len < 2) { - node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); - tree[node].Freq = 1; - s->depth[node] = 0; - s->opt_len--; if (stree) s->static_len -= stree[node].Len; - /* node is 0 or 1 so it does not have extra bits */ - } - desc->max_code = max_code; - - /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, - * establish sub-heaps of increasing lengths: - */ - for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); - - /* Construct the Huffman tree by repeatedly combining the least two - * frequent nodes. - */ - node = elems; /* next internal node of the tree */ - do { - pqremove(s, tree, n); /* n = node of least frequency */ - m = s->heap[SMALLEST]; /* m = node of next least frequency */ - - s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ - s->heap[--(s->heap_max)] = m; - - /* Create a new node father of n and m */ - tree[node].Freq = tree[n].Freq + tree[m].Freq; - s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ? - s->depth[n] : s->depth[m]) + 1); - tree[n].Dad = tree[m].Dad = (ush)node; -#ifdef DUMP_BL_TREE - if (tree == s->bl_tree) { - fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", - node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); - } -#endif - /* and insert the new node in the heap */ - s->heap[SMALLEST] = node++; - pqdownheap(s, tree, SMALLEST); - - } while (s->heap_len >= 2); - - s->heap[--(s->heap_max)] = s->heap[SMALLEST]; - - /* At this point, the fields freq and dad are set. We can now - * generate the bit lengths. - */ - gen_bitlen(s, (tree_desc *)desc); - - /* The field len is now set, we can generate the bit codes */ - gen_codes ((ct_data *)tree, max_code, s->bl_count); -} - -/* =========================================================================== - * Scan a literal or distance tree to determine the frequencies of the codes - * in the bit length tree. - */ -local void scan_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - if (nextlen == 0) max_count = 138, min_count = 3; - tree[max_code+1].Len = (ush)0xffff; /* guard */ - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - s->bl_tree[curlen].Freq += count; - } else if (curlen != 0) { - if (curlen != prevlen) s->bl_tree[curlen].Freq++; - s->bl_tree[REP_3_6].Freq++; - } else if (count <= 10) { - s->bl_tree[REPZ_3_10].Freq++; - } else { - s->bl_tree[REPZ_11_138].Freq++; - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Send a literal or distance tree in compressed form, using the codes in - * bl_tree. - */ -local void send_tree (s, tree, max_code) - deflate_state *s; - ct_data *tree; /* the tree to be scanned */ - int max_code; /* and its largest code of non zero frequency */ -{ - int n; /* iterates over all tree elements */ - int prevlen = -1; /* last emitted length */ - int curlen; /* length of current code */ - int nextlen = tree[0].Len; /* length of next code */ - int count = 0; /* repeat count of the current code */ - int max_count = 7; /* max repeat count */ - int min_count = 4; /* min repeat count */ - - /* tree[max_code+1].Len = -1; */ /* guard already set */ - if (nextlen == 0) max_count = 138, min_count = 3; - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; nextlen = tree[n+1].Len; - if (++count < max_count && curlen == nextlen) { - continue; - } else if (count < min_count) { - do { send_code(s, curlen, s->bl_tree); } while (--count != 0); - - } else if (curlen != 0) { - if (curlen != prevlen) { - send_code(s, curlen, s->bl_tree); count--; - } - Assert(count >= 3 && count <= 6, " 3_6?"); - send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); - - } else if (count <= 10) { - send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); - - } else { - send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); - } - count = 0; prevlen = curlen; - if (nextlen == 0) { - max_count = 138, min_count = 3; - } else if (curlen == nextlen) { - max_count = 6, min_count = 3; - } else { - max_count = 7, min_count = 4; - } - } -} - -/* =========================================================================== - * Construct the Huffman tree for the bit lengths and return the index in - * bl_order of the last bit length code to send. - */ -local int build_bl_tree(s) - deflate_state *s; -{ - int max_blindex; /* index of last bit length code of non zero freq */ - - /* Determine the bit length frequencies for literal and distance trees */ - scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); - scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); - - /* Build the bit length tree: */ - build_tree(s, (tree_desc *)(&(s->bl_desc))); - /* opt_len now includes the length of the tree representations, except - * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. - */ - - /* Determine the number of bit length codes to send. The pkzip format - * requires that at least 4 bit length codes be sent. (appnote.txt says - * 3 but the actual value used is 4.) - */ - for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { - if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; - } - /* Update opt_len to include the bit length tree and counts */ - s->opt_len += 3*(max_blindex+1) + 5+5+4; - Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", - s->opt_len, s->static_len)); - - return max_blindex; -} - -/* =========================================================================== - * Send the header for a block using dynamic Huffman trees: the counts, the - * lengths of the bit length codes, the literal tree and the distance tree. - * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. - */ -local void send_all_trees(s, lcodes, dcodes, blcodes) - deflate_state *s; - int lcodes, dcodes, blcodes; /* number of codes for each tree */ -{ - int rank; /* index in bl_order */ - - Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); - Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, - "too many codes"); - Tracev((stderr, "\nbl counts: ")); - send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ - send_bits(s, dcodes-1, 5); - send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ - for (rank = 0; rank < blcodes; rank++) { - Tracev((stderr, "\nbl code %2d ", bl_order[rank])); - send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); - } - Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ - Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); - - send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ - Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); -} - -/* =========================================================================== - * Send a stored block - */ -void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last) - deflate_state *s; - charf *buf; /* input block */ - ulg stored_len; /* length of input block */ - int last; /* one if this is the last block for a file */ -{ - send_bits(s, (STORED_BLOCK<<1)+last, 3); /* send block type */ -#ifdef DEBUG - s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; - s->compressed_len += (stored_len + 4) << 3; -#endif - copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ -} - -/* =========================================================================== - * Send one empty static block to give enough lookahead for inflate. - * This takes 10 bits, of which 7 may remain in the bit buffer. - * The current inflate code requires 9 bits of lookahead. If the - * last two codes for the previous block (real code plus EOB) were coded - * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode - * the last real code. In this case we send two empty static blocks instead - * of one. (There are no problems if the previous block is stored or fixed.) - * To simplify the code, we assume the worst case of last real code encoded - * on one bit only. - */ -void ZLIB_INTERNAL _tr_align(s) - deflate_state *s; -{ - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ -#endif - bi_flush(s); - /* Of the 10 bits for the empty block, we have already sent - * (10 - bi_valid) bits. The lookahead for the last real code (before - * the EOB of the previous block) was thus at least one plus the length - * of the EOB plus what we have just sent of the empty static block. - */ - if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { - send_bits(s, STATIC_TREES<<1, 3); - send_code(s, END_BLOCK, static_ltree); -#ifdef DEBUG - s->compressed_len += 10L; -#endif - bi_flush(s); - } - s->last_eob_len = 7; -} - -/* =========================================================================== - * Determine the best encoding for the current block: dynamic trees, static - * trees or store, and output the encoded block to the zip file. - */ -void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last) - deflate_state *s; - charf *buf; /* input block, or NULL if too old */ - ulg stored_len; /* length of input block */ - int last; /* one if this is the last block for a file */ -{ - ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ - int max_blindex = 0; /* index of last bit length code of non zero freq */ - - /* Build the Huffman trees unless a stored block is forced */ - if (s->level > 0) { - - /* Check if the file is binary or text */ - if (s->strm->data_type == Z_UNKNOWN) - s->strm->data_type = detect_data_type(s); - - /* Construct the literal and distance trees */ - build_tree(s, (tree_desc *)(&(s->l_desc))); - Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - - build_tree(s, (tree_desc *)(&(s->d_desc))); - Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ - - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); - - /* Determine the best encoding. Compute the block lengths in bytes. */ - opt_lenb = (s->opt_len+3+7)>>3; - static_lenb = (s->static_len+3+7)>>3; - - Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); - - if (static_lenb <= opt_lenb) opt_lenb = static_lenb; - - } else { - Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ - } - -#ifdef FORCE_STORED - if (buf != (char*)0) { /* force stored block */ -#else - if (stored_len+4 <= opt_lenb && buf != (char*)0) { - /* 4: two words for the lengths */ -#endif - /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. - * Otherwise we can't have processed more than WSIZE input bytes since - * the last block flush, because compression would have been - * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to - * transform a block into a stored block. - */ - _tr_stored_block(s, buf, stored_len, last); - -#ifdef FORCE_STATIC - } else if (static_lenb >= 0) { /* force static trees */ -#else - } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) { -#endif - send_bits(s, (STATIC_TREES<<1)+last, 3); - compress_block(s, (ct_data *)static_ltree, (ct_data *)static_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->static_len; -#endif - } else { - send_bits(s, (DYN_TREES<<1)+last, 3); - send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, - max_blindex+1); - compress_block(s, (ct_data *)s->dyn_ltree, (ct_data *)s->dyn_dtree); -#ifdef DEBUG - s->compressed_len += 3 + s->opt_len; -#endif - } - Assert (s->compressed_len == s->bits_sent, "bad compressed size"); - /* The above check is made mod 2^32, for files larger than 512 MB - * and uLong implemented on 32 bits. - */ - init_block(s); - - if (last) { - bi_windup(s); -#ifdef DEBUG - s->compressed_len += 7; /* align on byte boundary */ -#endif - } - Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, - s->compressed_len-7*last)); -} - -/* =========================================================================== - * Save the match info and tally the frequency counts. Return true if - * the current block must be flushed. - */ -int ZLIB_INTERNAL _tr_tally (s, dist, lc) - deflate_state *s; - unsigned dist; /* distance of matched string */ - unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ -{ - s->d_buf[s->last_lit] = (ush)dist; - s->l_buf[s->last_lit++] = (uch)lc; - if (dist == 0) { - /* lc is the unmatched char */ - s->dyn_ltree[lc].Freq++; - } else { - s->matches++; - /* Here, lc is the match length - MIN_MATCH */ - dist--; /* dist = match distance - 1 */ - Assert((ush)dist < (ush)MAX_DIST(s) && - (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && - (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); - - s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; - s->dyn_dtree[d_code(dist)].Freq++; - } - -#ifdef TRUNCATE_BLOCK - /* Try to guess if it is profitable to stop the current block here */ - if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { - /* Compute an upper bound for the compressed length */ - ulg out_length = (ulg)s->last_lit*8L; - ulg in_length = (ulg)((long)s->strstart - s->block_start); - int dcode; - for (dcode = 0; dcode < D_CODES; dcode++) { - out_length += (ulg)s->dyn_dtree[dcode].Freq * - (5L+extra_dbits[dcode]); - } - out_length >>= 3; - Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", - s->last_lit, in_length, out_length, - 100L - out_length*100L/in_length)); - if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; - } -#endif - return (s->last_lit == s->lit_bufsize-1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ -} - -/* =========================================================================== - * Send the block data compressed using the given Huffman trees - */ -local void compress_block(s, ltree, dtree) - deflate_state *s; - ct_data *ltree; /* literal tree */ - ct_data *dtree; /* distance tree */ -{ - unsigned dist; /* distance of matched string */ - int lc; /* match length or unmatched char (if dist == 0) */ - unsigned lx = 0; /* running index in l_buf */ - unsigned code; /* the code to send */ - int extra; /* number of extra bits to send */ - - if (s->last_lit != 0) do { - dist = s->d_buf[lx]; - lc = s->l_buf[lx++]; - if (dist == 0) { - send_code(s, lc, ltree); /* send a literal byte */ - Tracecv(isgraph(lc), (stderr," '%c' ", lc)); - } else { - /* Here, lc is the match length - MIN_MATCH */ - code = _length_code[lc]; - send_code(s, code+LITERALS+1, ltree); /* send the length code */ - extra = extra_lbits[code]; - if (extra != 0) { - lc -= base_length[code]; - send_bits(s, lc, extra); /* send the extra length bits */ - } - dist--; /* dist is now the match distance - 1 */ - code = d_code(dist); - Assert (code < D_CODES, "bad d_code"); - - send_code(s, code, dtree); /* send the distance code */ - extra = extra_dbits[code]; - if (extra != 0) { - dist -= base_dist[code]; - send_bits(s, dist, extra); /* send the extra distance bits */ - } - } /* literal or match pair ? */ - - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, - "pendingBuf overflow"); - - } while (lx < s->last_lit); - - send_code(s, END_BLOCK, ltree); - s->last_eob_len = ltree[END_BLOCK].Len; -} - -/* =========================================================================== - * Check if the data type is TEXT or BINARY, using the following algorithm: - * - TEXT if the two conditions below are satisfied: - * a) There are no non-portable control characters belonging to the - * "black list" (0..6, 14..25, 28..31). - * b) There is at least one printable character belonging to the - * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). - * - BINARY otherwise. - * - The following partially-portable control characters form a - * "gray list" that is ignored in this detection algorithm: - * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}). - * IN assertion: the fields Freq of dyn_ltree are set. - */ -local int detect_data_type(s) - deflate_state *s; -{ - /* black_mask is the bit mask of black-listed bytes - * set bits 0..6, 14..25, and 28..31 - * 0xf3ffc07f = binary 11110011111111111100000001111111 - */ - unsigned long black_mask = 0xf3ffc07fUL; - int n; - - /* Check for non-textual ("black-listed") bytes. */ - for (n = 0; n <= 31; n++, black_mask >>= 1) - if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0)) - return Z_BINARY; - - /* Check for textual ("white-listed") bytes. */ - if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0 - || s->dyn_ltree[13].Freq != 0) - return Z_TEXT; - for (n = 32; n < LITERALS; n++) - if (s->dyn_ltree[n].Freq != 0) - return Z_TEXT; - - /* There are no "black-listed" or "white-listed" bytes: - * this stream either is empty or has tolerated ("gray-listed") bytes only. - */ - return Z_BINARY; -} - -/* =========================================================================== - * Reverse the first len bits of a code, using straightforward code (a faster - * method would use a table) - * IN assertion: 1 <= len <= 15 - */ -local unsigned bi_reverse(code, len) - unsigned code; /* the value to invert */ - int len; /* its bit length */ -{ - register unsigned res = 0; - do { - res |= code & 1; - code >>= 1, res <<= 1; - } while (--len > 0); - return res >> 1; -} - -/* =========================================================================== - * Flush the bit buffer, keeping at most 7 bits in it. - */ -local void bi_flush(s) - deflate_state *s; -{ - if (s->bi_valid == 16) { - put_short(s, s->bi_buf); - s->bi_buf = 0; - s->bi_valid = 0; - } else if (s->bi_valid >= 8) { - put_byte(s, (Byte)s->bi_buf); - s->bi_buf >>= 8; - s->bi_valid -= 8; - } -} - -/* =========================================================================== - * Flush the bit buffer and align the output on a byte boundary - */ -local void bi_windup(s) - deflate_state *s; -{ - if (s->bi_valid > 8) { - put_short(s, s->bi_buf); - } else if (s->bi_valid > 0) { - put_byte(s, (Byte)s->bi_buf); - } - s->bi_buf = 0; - s->bi_valid = 0; -#ifdef DEBUG - s->bits_sent = (s->bits_sent+7) & ~7; -#endif -} - -/* =========================================================================== - * Copy a stored block, storing first the length and its - * one's complement if requested. - */ -local void copy_block(s, buf, len, header) - deflate_state *s; - charf *buf; /* the input data */ - unsigned len; /* its length */ - int header; /* true if block header must be written */ -{ - bi_windup(s); /* align on byte boundary */ - s->last_eob_len = 8; /* enough lookahead for inflate */ - - if (header) { - put_short(s, (ush)len); - put_short(s, (ush)~len); -#ifdef DEBUG - s->bits_sent += 2*16; -#endif - } -#ifdef DEBUG - s->bits_sent += (ulg)len<<3; -#endif - while (len--) { - put_byte(s, *buf++); - } -} diff --git a/zlib/trees.h b/zlib/trees.h deleted file mode 100755 index d35639d..0000000 --- a/zlib/trees.h +++ /dev/null @@ -1,128 +0,0 @@ -/* header created automatically with -DGEN_TREES_H */ - -local const ct_data static_ltree[L_CODES+2] = { -{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, -{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, -{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, -{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, -{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, -{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, -{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, -{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, -{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, -{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, -{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, -{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, -{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, -{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, -{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, -{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, -{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, -{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, -{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, -{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, -{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, -{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, -{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, -{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, -{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, -{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, -{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, -{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, -{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, -{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, -{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, -{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, -{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, -{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, -{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, -{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, -{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, -{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, -{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, -{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, -{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, -{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, -{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, -{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, -{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, -{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, -{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, -{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, -{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, -{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, -{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, -{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, -{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, -{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, -{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, -{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, -{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, -{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} -}; - -local const ct_data static_dtree[D_CODES] = { -{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, -{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, -{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, -{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, -{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, -{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} -}; - -const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = { - 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, - 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, -10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, -11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, -12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, -13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, -14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, -15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, -18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, -28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, -29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 -}; - -const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, -13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, -17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, -19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, -21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, -22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, -23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, -25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, -26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, -27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 -}; - -local const int base_length[LENGTH_CODES] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, -64, 80, 96, 112, 128, 160, 192, 224, 0 -}; - -local const int base_dist[D_CODES] = { - 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, - 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, - 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 -}; - diff --git a/zlib/uncompr.c b/zlib/uncompr.c deleted file mode 100755 index ad98be3..0000000 --- a/zlib/uncompr.c +++ /dev/null @@ -1,59 +0,0 @@ -/* uncompr.c -- decompress a memory buffer - * Copyright (C) 1995-2003, 2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ -int ZEXPORT uncompress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; - - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - - err = inflateInit(&stream); - if (err != Z_OK) return err; - - err = inflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - inflateEnd(&stream); - if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) - return Z_DATA_ERROR; - return err; - } - *destLen = stream.total_out; - - err = inflateEnd(&stream); - return err; -} diff --git a/zlib/zconf.h b/zlib/zconf.h deleted file mode 100755 index 02ce56c..0000000 --- a/zlib/zconf.h +++ /dev/null @@ -1,428 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - * Even better than compiling with -DZ_PREFIX would be to use configure to set - * this permanently in zconf.h using "./configure --zprefix". - */ -#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ - -/* all linked symbols */ -# define _dist_code z__dist_code -# define _length_code z__length_code -# define _tr_align z__tr_align -# define _tr_flush_block z__tr_flush_block -# define _tr_init z__tr_init -# define _tr_stored_block z__tr_stored_block -# define _tr_tally z__tr_tally -# define adler32 z_adler32 -# define adler32_combine z_adler32_combine -# define adler32_combine64 z_adler32_combine64 -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define crc32 z_crc32 -# define crc32_combine z_crc32_combine -# define crc32_combine64 z_crc32_combine64 -# define deflate z_deflate -# define deflateBound z_deflateBound -# define deflateCopy z_deflateCopy -# define deflateEnd z_deflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateInit_ z_deflateInit_ -# define deflateParams z_deflateParams -# define deflatePrime z_deflatePrime -# define deflateReset z_deflateReset -# define deflateSetDictionary z_deflateSetDictionary -# define deflateSetHeader z_deflateSetHeader -# define deflateTune z_deflateTune -# define deflate_copyright z_deflate_copyright -# define get_crc_table z_get_crc_table -# define gz_error z_gz_error -# define gz_intmax z_gz_intmax -# define gz_strwinerror z_gz_strwinerror -# define gzbuffer z_gzbuffer -# define gzclearerr z_gzclearerr -# define gzclose z_gzclose -# define gzclose_r z_gzclose_r -# define gzclose_w z_gzclose_w -# define gzdirect z_gzdirect -# define gzdopen z_gzdopen -# define gzeof z_gzeof -# define gzerror z_gzerror -# define gzflush z_gzflush -# define gzgetc z_gzgetc -# define gzgets z_gzgets -# define gzoffset z_gzoffset -# define gzoffset64 z_gzoffset64 -# define gzopen z_gzopen -# define gzopen64 z_gzopen64 -# define gzprintf z_gzprintf -# define gzputc z_gzputc -# define gzputs z_gzputs -# define gzread z_gzread -# define gzrewind z_gzrewind -# define gzseek z_gzseek -# define gzseek64 z_gzseek64 -# define gzsetparams z_gzsetparams -# define gztell z_gztell -# define gztell64 z_gztell64 -# define gzungetc z_gzungetc -# define gzwrite z_gzwrite -# define inflate z_inflate -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define inflateBackInit_ z_inflateBackInit_ -# define inflateCopy z_inflateCopy -# define inflateEnd z_inflateEnd -# define inflateGetHeader z_inflateGetHeader -# define inflateInit2_ z_inflateInit2_ -# define inflateInit_ z_inflateInit_ -# define inflateMark z_inflateMark -# define inflatePrime z_inflatePrime -# define inflateReset z_inflateReset -# define inflateReset2 z_inflateReset2 -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateUndermine z_inflateUndermine -# define inflate_copyright z_inflate_copyright -# define inflate_fast z_inflate_fast -# define inflate_table z_inflate_table -# define uncompress z_uncompress -# define zError z_zError -# define zcalloc z_zcalloc -# define zcfree z_zcfree -# define zlibCompileFlags z_zlibCompileFlags -# define zlibVersion z_zlibVersion - -/* all zlib typedefs in zlib.h and zconf.h */ -# define Byte z_Byte -# define Bytef z_Bytef -# define alloc_func z_alloc_func -# define charf z_charf -# define free_func z_free_func -# define gzFile z_gzFile -# define gz_header z_gz_header -# define gz_headerp z_gz_headerp -# define in_func z_in_func -# define intf z_intf -# define out_func z_out_func -# define uInt z_uInt -# define uIntf z_uIntf -# define uLong z_uLong -# define uLongf z_uLongf -# define voidp z_voidp -# define voidpc z_voidpc -# define voidpf z_voidpf - -/* all zlib structs in zlib.h and zconf.h */ -# define gz_header_s z_gz_header_s -# define internal_state z_internal_state - -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_UNISTD_H -#endif - -#ifdef STDC -# include /* for off_t */ -#endif - -/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and - * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even - * though the former does not conform to the LFS document), but considering - * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as - * equivalently requesting no 64-bit operations - */ -#if -_LARGEFILE64_SOURCE - -1 == 1 -# undef _LARGEFILE64_SOURCE -#endif - -#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) -# include /* for SEEK_* and off_t */ -# ifdef VMS -# include /* for off_t */ -# endif -# ifndef z_off_t -# define z_off_t off_t -# endif -#endif - -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define z_off64_t off64_t -#else -# define z_off64_t z_off_t -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) - #pragma map(deflateInit_,"DEIN") - #pragma map(deflateInit2_,"DEIN2") - #pragma map(deflateEnd,"DEEND") - #pragma map(deflateBound,"DEBND") - #pragma map(inflateInit_,"ININ") - #pragma map(inflateInit2_,"ININ2") - #pragma map(inflateEnd,"INEND") - #pragma map(inflateSync,"INSY") - #pragma map(inflateSetDictionary,"INSEDI") - #pragma map(compressBound,"CMBND") - #pragma map(inflate_table,"INTABL") - #pragma map(inflate_fast,"INFA") - #pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/zlib/zconf.h.cmakein b/zlib/zconf.h.cmakein deleted file mode 100755 index a2f71b1..0000000 --- a/zlib/zconf.h.cmakein +++ /dev/null @@ -1,430 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H -#cmakedefine Z_PREFIX -#cmakedefine Z_HAVE_UNISTD_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - * Even better than compiling with -DZ_PREFIX would be to use configure to set - * this permanently in zconf.h using "./configure --zprefix". - */ -#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ - -/* all linked symbols */ -# define _dist_code z__dist_code -# define _length_code z__length_code -# define _tr_align z__tr_align -# define _tr_flush_block z__tr_flush_block -# define _tr_init z__tr_init -# define _tr_stored_block z__tr_stored_block -# define _tr_tally z__tr_tally -# define adler32 z_adler32 -# define adler32_combine z_adler32_combine -# define adler32_combine64 z_adler32_combine64 -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define crc32 z_crc32 -# define crc32_combine z_crc32_combine -# define crc32_combine64 z_crc32_combine64 -# define deflate z_deflate -# define deflateBound z_deflateBound -# define deflateCopy z_deflateCopy -# define deflateEnd z_deflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateInit_ z_deflateInit_ -# define deflateParams z_deflateParams -# define deflatePrime z_deflatePrime -# define deflateReset z_deflateReset -# define deflateSetDictionary z_deflateSetDictionary -# define deflateSetHeader z_deflateSetHeader -# define deflateTune z_deflateTune -# define deflate_copyright z_deflate_copyright -# define get_crc_table z_get_crc_table -# define gz_error z_gz_error -# define gz_intmax z_gz_intmax -# define gz_strwinerror z_gz_strwinerror -# define gzbuffer z_gzbuffer -# define gzclearerr z_gzclearerr -# define gzclose z_gzclose -# define gzclose_r z_gzclose_r -# define gzclose_w z_gzclose_w -# define gzdirect z_gzdirect -# define gzdopen z_gzdopen -# define gzeof z_gzeof -# define gzerror z_gzerror -# define gzflush z_gzflush -# define gzgetc z_gzgetc -# define gzgets z_gzgets -# define gzoffset z_gzoffset -# define gzoffset64 z_gzoffset64 -# define gzopen z_gzopen -# define gzopen64 z_gzopen64 -# define gzprintf z_gzprintf -# define gzputc z_gzputc -# define gzputs z_gzputs -# define gzread z_gzread -# define gzrewind z_gzrewind -# define gzseek z_gzseek -# define gzseek64 z_gzseek64 -# define gzsetparams z_gzsetparams -# define gztell z_gztell -# define gztell64 z_gztell64 -# define gzungetc z_gzungetc -# define gzwrite z_gzwrite -# define inflate z_inflate -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define inflateBackInit_ z_inflateBackInit_ -# define inflateCopy z_inflateCopy -# define inflateEnd z_inflateEnd -# define inflateGetHeader z_inflateGetHeader -# define inflateInit2_ z_inflateInit2_ -# define inflateInit_ z_inflateInit_ -# define inflateMark z_inflateMark -# define inflatePrime z_inflatePrime -# define inflateReset z_inflateReset -# define inflateReset2 z_inflateReset2 -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateUndermine z_inflateUndermine -# define inflate_copyright z_inflate_copyright -# define inflate_fast z_inflate_fast -# define inflate_table z_inflate_table -# define uncompress z_uncompress -# define zError z_zError -# define zcalloc z_zcalloc -# define zcfree z_zcfree -# define zlibCompileFlags z_zlibCompileFlags -# define zlibVersion z_zlibVersion - -/* all zlib typedefs in zlib.h and zconf.h */ -# define Byte z_Byte -# define Bytef z_Bytef -# define alloc_func z_alloc_func -# define charf z_charf -# define free_func z_free_func -# define gzFile z_gzFile -# define gz_header z_gz_header -# define gz_headerp z_gz_headerp -# define in_func z_in_func -# define intf z_intf -# define out_func z_out_func -# define uInt z_uInt -# define uIntf z_uIntf -# define uLong z_uLong -# define uLongf z_uLongf -# define voidp z_voidp -# define voidpc z_voidpc -# define voidpf z_voidpf - -/* all zlib structs in zlib.h and zconf.h */ -# define gz_header_s z_gz_header_s -# define internal_state z_internal_state - -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_UNISTD_H -#endif - -#ifdef STDC -# include /* for off_t */ -#endif - -/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and - * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even - * though the former does not conform to the LFS document), but considering - * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as - * equivalently requesting no 64-bit operations - */ -#if -_LARGEFILE64_SOURCE - -1 == 1 -# undef _LARGEFILE64_SOURCE -#endif - -#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) -# include /* for SEEK_* and off_t */ -# ifdef VMS -# include /* for off_t */ -# endif -# ifndef z_off_t -# define z_off_t off_t -# endif -#endif - -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define z_off64_t off64_t -#else -# define z_off64_t z_off_t -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) - #pragma map(deflateInit_,"DEIN") - #pragma map(deflateInit2_,"DEIN2") - #pragma map(deflateEnd,"DEEND") - #pragma map(deflateBound,"DEBND") - #pragma map(inflateInit_,"ININ") - #pragma map(inflateInit2_,"ININ2") - #pragma map(inflateEnd,"INEND") - #pragma map(inflateSync,"INSY") - #pragma map(inflateSetDictionary,"INSEDI") - #pragma map(compressBound,"CMBND") - #pragma map(inflate_table,"INTABL") - #pragma map(inflate_fast,"INFA") - #pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/zlib/zconf.h.in b/zlib/zconf.h.in deleted file mode 100755 index 02ce56c..0000000 --- a/zlib/zconf.h.in +++ /dev/null @@ -1,428 +0,0 @@ -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#ifndef ZCONF_H -#define ZCONF_H - -/* - * If you *really* need a unique prefix for all types and library functions, - * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. - * Even better than compiling with -DZ_PREFIX would be to use configure to set - * this permanently in zconf.h using "./configure --zprefix". - */ -#ifdef Z_PREFIX /* may be set to #if 1 by ./configure */ - -/* all linked symbols */ -# define _dist_code z__dist_code -# define _length_code z__length_code -# define _tr_align z__tr_align -# define _tr_flush_block z__tr_flush_block -# define _tr_init z__tr_init -# define _tr_stored_block z__tr_stored_block -# define _tr_tally z__tr_tally -# define adler32 z_adler32 -# define adler32_combine z_adler32_combine -# define adler32_combine64 z_adler32_combine64 -# define compress z_compress -# define compress2 z_compress2 -# define compressBound z_compressBound -# define crc32 z_crc32 -# define crc32_combine z_crc32_combine -# define crc32_combine64 z_crc32_combine64 -# define deflate z_deflate -# define deflateBound z_deflateBound -# define deflateCopy z_deflateCopy -# define deflateEnd z_deflateEnd -# define deflateInit2_ z_deflateInit2_ -# define deflateInit_ z_deflateInit_ -# define deflateParams z_deflateParams -# define deflatePrime z_deflatePrime -# define deflateReset z_deflateReset -# define deflateSetDictionary z_deflateSetDictionary -# define deflateSetHeader z_deflateSetHeader -# define deflateTune z_deflateTune -# define deflate_copyright z_deflate_copyright -# define get_crc_table z_get_crc_table -# define gz_error z_gz_error -# define gz_intmax z_gz_intmax -# define gz_strwinerror z_gz_strwinerror -# define gzbuffer z_gzbuffer -# define gzclearerr z_gzclearerr -# define gzclose z_gzclose -# define gzclose_r z_gzclose_r -# define gzclose_w z_gzclose_w -# define gzdirect z_gzdirect -# define gzdopen z_gzdopen -# define gzeof z_gzeof -# define gzerror z_gzerror -# define gzflush z_gzflush -# define gzgetc z_gzgetc -# define gzgets z_gzgets -# define gzoffset z_gzoffset -# define gzoffset64 z_gzoffset64 -# define gzopen z_gzopen -# define gzopen64 z_gzopen64 -# define gzprintf z_gzprintf -# define gzputc z_gzputc -# define gzputs z_gzputs -# define gzread z_gzread -# define gzrewind z_gzrewind -# define gzseek z_gzseek -# define gzseek64 z_gzseek64 -# define gzsetparams z_gzsetparams -# define gztell z_gztell -# define gztell64 z_gztell64 -# define gzungetc z_gzungetc -# define gzwrite z_gzwrite -# define inflate z_inflate -# define inflateBack z_inflateBack -# define inflateBackEnd z_inflateBackEnd -# define inflateBackInit_ z_inflateBackInit_ -# define inflateCopy z_inflateCopy -# define inflateEnd z_inflateEnd -# define inflateGetHeader z_inflateGetHeader -# define inflateInit2_ z_inflateInit2_ -# define inflateInit_ z_inflateInit_ -# define inflateMark z_inflateMark -# define inflatePrime z_inflatePrime -# define inflateReset z_inflateReset -# define inflateReset2 z_inflateReset2 -# define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync -# define inflateSyncPoint z_inflateSyncPoint -# define inflateUndermine z_inflateUndermine -# define inflate_copyright z_inflate_copyright -# define inflate_fast z_inflate_fast -# define inflate_table z_inflate_table -# define uncompress z_uncompress -# define zError z_zError -# define zcalloc z_zcalloc -# define zcfree z_zcfree -# define zlibCompileFlags z_zlibCompileFlags -# define zlibVersion z_zlibVersion - -/* all zlib typedefs in zlib.h and zconf.h */ -# define Byte z_Byte -# define Bytef z_Bytef -# define alloc_func z_alloc_func -# define charf z_charf -# define free_func z_free_func -# define gzFile z_gzFile -# define gz_header z_gz_header -# define gz_headerp z_gz_headerp -# define in_func z_in_func -# define intf z_intf -# define out_func z_out_func -# define uInt z_uInt -# define uIntf z_uIntf -# define uLong z_uLong -# define uLongf z_uLongf -# define voidp z_voidp -# define voidpc z_voidpc -# define voidpf z_voidpf - -/* all zlib structs in zlib.h and zconf.h */ -# define gz_header_s z_gz_header_s -# define internal_state z_internal_state - -#endif - -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif -#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) -# define OS2 -#endif -#if defined(_WINDOWS) && !defined(WINDOWS) -# define WINDOWS -#endif -#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__) -# ifndef WIN32 -# define WIN32 -# endif -#endif -#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) -# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) -# ifndef SYS16BIT -# define SYS16BIT -# endif -# endif -#endif - -/* - * Compile with -DMAXSEG_64K if the alloc function cannot allocate more - * than 64k bytes at a time (needed on systems with 16-bit int). - */ -#ifdef SYS16BIT -# define MAXSEG_64K -#endif -#ifdef MSDOS -# define UNALIGNED_OK -#endif - -#ifdef __STDC_VERSION__ -# ifndef STDC -# define STDC -# endif -# if __STDC_VERSION__ >= 199901L -# ifndef STDC99 -# define STDC99 -# endif -# endif -#endif -#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) -# define STDC -#endif -#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) -# define STDC -#endif -#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) -# define STDC -#endif -#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) -# define STDC -#endif - -#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ -# define STDC -#endif - -#ifndef STDC -# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const /* note: need a more gentle solution here */ -# endif -#endif - -/* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) -# define NO_DUMMY_DECL -#endif - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -# ifdef STDC -# define OF(args) args -# else -# define OF(args) () -# endif -#endif - -/* The following definitions for FAR are needed only for MSDOS mixed - * model programming (small or medium model with some far allocations). - * This was tested only with MSC; for other MSDOS compilers you may have - * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, - * just define FAR to be empty. - */ -#ifdef SYS16BIT -# if defined(M_I86SM) || defined(M_I86MM) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far -# endif -# endif -# if (defined(__SMALL__) || defined(__MEDIUM__)) - /* Turbo C small or medium model */ -# define SMALL_MEDIUM -# ifdef __BORLANDC__ -# define FAR _far -# else -# define FAR far -# endif -# endif -#endif - -#if defined(WINDOWS) || defined(WIN32) - /* If building or using zlib as a DLL, define ZLIB_DLL. - * This is not mandatory, but it offers a little performance increase. - */ -# ifdef ZLIB_DLL -# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) -# ifdef ZLIB_INTERNAL -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) -# endif -# endif -# endif /* ZLIB_DLL */ - /* If building or using zlib with the WINAPI/WINAPIV calling convention, - * define ZLIB_WINAPI. - * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. - */ -# ifdef ZLIB_WINAPI -# ifdef FAR -# undef FAR -# endif -# include - /* No need for _export, use ZLIB.DEF instead. */ - /* For complete Windows compatibility, use WINAPI, not __stdcall. */ -# define ZEXPORT WINAPI -# ifdef WIN32 -# define ZEXPORTVA WINAPIV -# else -# define ZEXPORTVA FAR CDECL -# endif -# endif -#endif - -#if defined (__BEOS__) -# ifdef ZLIB_DLL -# ifdef ZLIB_INTERNAL -# define ZEXPORT __declspec(dllexport) -# define ZEXPORTVA __declspec(dllexport) -# else -# define ZEXPORT __declspec(dllimport) -# define ZEXPORTVA __declspec(dllimport) -# endif -# endif -#endif - -#ifndef ZEXTERN -# define ZEXTERN extern -#endif -#ifndef ZEXPORT -# define ZEXPORT -#endif -#ifndef ZEXPORTVA -# define ZEXPORTVA -#endif - -#ifndef FAR -# define FAR -#endif - -#if !defined(__MACTYPES__) -typedef unsigned char Byte; /* 8 bits */ -#endif -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ - -#ifdef SMALL_MEDIUM - /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ -# define Bytef Byte FAR -#else - typedef Byte FAR Bytef; -#endif -typedef char FAR charf; -typedef int FAR intf; -typedef uInt FAR uIntf; -typedef uLong FAR uLongf; - -#ifdef STDC - typedef void const *voidpc; - typedef void FAR *voidpf; - typedef void *voidp; -#else - typedef Byte const *voidpc; - typedef Byte FAR *voidpf; - typedef Byte *voidp; -#endif - -#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ -# define Z_HAVE_UNISTD_H -#endif - -#ifdef STDC -# include /* for off_t */ -#endif - -/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and - * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even - * though the former does not conform to the LFS document), but considering - * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as - * equivalently requesting no 64-bit operations - */ -#if -_LARGEFILE64_SOURCE - -1 == 1 -# undef _LARGEFILE64_SOURCE -#endif - -#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) -# include /* for SEEK_* and off_t */ -# ifdef VMS -# include /* for off_t */ -# endif -# ifndef z_off_t -# define z_off_t off_t -# endif -#endif - -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#ifndef z_off_t -# define z_off_t long -#endif - -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 -# define z_off64_t off64_t -#else -# define z_off64_t z_off_t -#endif - -#if defined(__OS400__) -# define NO_vsnprintf -#endif - -#if defined(__MVS__) -# define NO_vsnprintf -#endif - -/* MVS linker does not support external names larger than 8 bytes */ -#if defined(__MVS__) - #pragma map(deflateInit_,"DEIN") - #pragma map(deflateInit2_,"DEIN2") - #pragma map(deflateEnd,"DEEND") - #pragma map(deflateBound,"DEBND") - #pragma map(inflateInit_,"ININ") - #pragma map(inflateInit2_,"ININ2") - #pragma map(inflateEnd,"INEND") - #pragma map(inflateSync,"INSY") - #pragma map(inflateSetDictionary,"INSEDI") - #pragma map(compressBound,"CMBND") - #pragma map(inflate_table,"INTABL") - #pragma map(inflate_fast,"INFA") - #pragma map(inflate_copyright,"INCOPY") -#endif - -#endif /* ZCONF_H */ diff --git a/zlib/zcrc32.c b/zlib/zcrc32.c deleted file mode 100755 index 53f9dd6..0000000 --- a/zlib/zcrc32.c +++ /dev/null @@ -1,442 +0,0 @@ -/* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2006, 2010 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - * - * Thanks to Rodney Brown for his contribution of faster - * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing - * tables for updating the shift register in one step with three exclusive-ors - * instead of four steps with four exclusive-ors. This results in about a - * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. - */ - -/* @(#) $Id$ */ - -/* - Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore - protection on the static variables used to control the first-use generation - of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should - first call get_crc_table() to initialize the tables before allowing more than - one thread to use crc32(). - */ - -#ifdef MAKECRCH -# include -# ifndef DYNAMIC_CRC_TABLE -# define DYNAMIC_CRC_TABLE -# endif /* !DYNAMIC_CRC_TABLE */ -#endif /* MAKECRCH */ - -#include "zutil.h" /* for STDC and FAR definitions */ - -#define local static - -/* Find a four-byte integer type for crc32_little() and crc32_big(). */ -#ifndef NOBYFOUR -# ifdef STDC /* need ANSI C limits.h to determine sizes */ -# include -# define BYFOUR -# if (UINT_MAX == 0xffffffffUL) - typedef unsigned int u4; -# else -# if (ULONG_MAX == 0xffffffffUL) - typedef unsigned long u4; -# else -# if (USHRT_MAX == 0xffffffffUL) - typedef unsigned short u4; -# else -# undef BYFOUR /* can't find a four-byte integer type! */ -# endif -# endif -# endif -# endif /* STDC */ -#endif /* !NOBYFOUR */ - -/* Definitions for doing the crc four data bytes at a time. */ -#ifdef BYFOUR -# define REV(w) ((((w)>>24)&0xff)+(((w)>>8)&0xff00)+ \ - (((w)&0xff00)<<8)+(((w)&0xff)<<24)) - local unsigned long crc32_little OF((unsigned long, - const unsigned char FAR *, unsigned)); - local unsigned long crc32_big OF((unsigned long, - const unsigned char FAR *, unsigned)); -# define TBLS 8 -#else -# define TBLS 1 -#endif /* BYFOUR */ - -/* Local functions for crc concatenation */ -local unsigned long gf2_matrix_times OF((unsigned long *mat, - unsigned long vec)); -local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); -local uLong crc32_combine_(uLong crc1, uLong crc2, z_off64_t len2); - - -#ifdef DYNAMIC_CRC_TABLE - -local volatile int crc_table_empty = 1; -local unsigned long FAR crc_table[TBLS][256]; -local void make_crc_table OF((void)); -#ifdef MAKECRCH - local void write_table OF((FILE *, const unsigned long FAR *)); -#endif /* MAKECRCH */ -/* - Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: - x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. - - Polynomials over GF(2) are represented in binary, one bit per coefficient, - with the lowest powers in the most significant bit. Then adding polynomials - is just exclusive-or, and multiplying a polynomial by x is a right shift by - one. If we call the above polynomial p, and represent a byte as the - polynomial q, also with the lowest power in the most significant bit (so the - byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, - where a mod b means the remainder after dividing a by b. - - This calculation is done using the shift-register method of multiplying and - taking the remainder. The register is initialized to zero, and for each - incoming bit, x^32 is added mod p to the register if the bit is a one (where - x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by - x (which is shifting right by one and adding x^32 mod p if the bit shifted - out is a one). We start with the highest power (least significant bit) of - q and repeat for all eight bits of q. - - The first table is simply the CRC of all possible eight bit values. This is - all the information needed to generate CRCs on data a byte at a time for all - combinations of CRC register values and incoming bytes. The remaining tables - allow for word-at-a-time CRC calculation for both big-endian and little- - endian machines, where a word is four bytes. -*/ -local void make_crc_table() -{ - unsigned long c; - int n, k; - unsigned long poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static volatile int first = 1; /* flag to limit concurrent making */ - static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* See if another task is already doing this (not thread-safe, but better - than nothing -- significantly reduces duration of vulnerability in - case the advice about DYNAMIC_CRC_TABLE is ignored) */ - if (first) { - first = 0; - - /* make exclusive-or pattern from polynomial (0xedb88320UL) */ - poly = 0UL; - for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) - poly |= 1UL << (31 - p[n]); - - /* generate a crc for every 8-bit value */ - for (n = 0; n < 256; n++) { - c = (unsigned long)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[0][n] = c; - } - -#ifdef BYFOUR - /* generate crc for each value followed by one, two, and three zeros, - and then the byte reversal of those as well as the first table */ - for (n = 0; n < 256; n++) { - c = crc_table[0][n]; - crc_table[4][n] = REV(c); - for (k = 1; k < 4; k++) { - c = crc_table[0][c & 0xff] ^ (c >> 8); - crc_table[k][n] = c; - crc_table[k + 4][n] = REV(c); - } - } -#endif /* BYFOUR */ - - crc_table_empty = 0; - } - else { /* not first */ - /* wait for the other guy to finish (not efficient, but rare) */ - while (crc_table_empty) - ; - } - -#ifdef MAKECRCH - /* write out CRC tables to zcrc32.h */ - { - FILE *out; - - out = fopen("zcrc32.h", "w"); - if (out == NULL) return; - fprintf(out, "/* zcrc32.h -- tables for rapid CRC calculation\n"); - fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); - fprintf(out, "local const unsigned long FAR "); - fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); - write_table(out, crc_table[0]); -# ifdef BYFOUR - fprintf(out, "#ifdef BYFOUR\n"); - for (k = 1; k < 8; k++) { - fprintf(out, " },\n {\n"); - write_table(out, crc_table[k]); - } - fprintf(out, "#endif\n"); -# endif /* BYFOUR */ - fprintf(out, " }\n};\n"); - fclose(out); - } -#endif /* MAKECRCH */ -} - -#ifdef MAKECRCH -local void write_table(out, table) - FILE *out; - const unsigned long FAR *table; -{ - int n; - - for (n = 0; n < 256; n++) - fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n], - n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); -} -#endif /* MAKECRCH */ - -#else /* !DYNAMIC_CRC_TABLE */ -/* ======================================================================== - * Tables of CRC-32s of all single-byte values, made by make_crc_table(). - */ -#include "zcrc32.h" -#endif /* DYNAMIC_CRC_TABLE */ - -/* ========================================================================= - * This function can be used by asm versions of crc32() - */ -const unsigned long FAR * ZEXPORT get_crc_table() -{ -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - return (const unsigned long FAR *)crc_table; -} - -/* ========================================================================= */ -#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) -#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 - -/* ========================================================================= */ -unsigned long ZEXPORT crc32(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - uInt len; -{ - if (buf == Z_NULL) return 0UL; - -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif /* DYNAMIC_CRC_TABLE */ - -#ifdef BYFOUR - if (sizeof(void *) == sizeof(ptrdiff_t)) { - u4 endian; - - endian = 1; - if (*((unsigned char *)(&endian))) - return crc32_little(crc, buf, len); - else - return crc32_big(crc, buf, len); - } -#endif /* BYFOUR */ - crc = crc ^ 0xffffffffUL; - while (len >= 8) { - DO8; - len -= 8; - } - if (len) do { - DO1; - } while (--len); - return crc ^ 0xffffffffUL; -} - -#ifdef BYFOUR - -/* ========================================================================= */ -#define DOLIT4 c ^= *buf4++; \ - c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ - crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] -#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 - -/* ========================================================================= */ -local unsigned long crc32_little(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register u4 c; - register const u4 FAR *buf4; - - c = (u4)crc; - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - len--; - } - - buf4 = (const u4 FAR *)(const void FAR *)buf; - while (len >= 32) { - DOLIT32; - len -= 32; - } - while (len >= 4) { - DOLIT4; - len -= 4; - } - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - } while (--len); - c = ~c; - return (unsigned long)c; -} - -/* ========================================================================= */ -#define DOBIG4 c ^= *++buf4; \ - c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ - crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] -#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 - -/* ========================================================================= */ -local unsigned long crc32_big(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - unsigned len; -{ - register u4 c; - register const u4 FAR *buf4; - - c = REV((u4)crc); - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - len--; - } - - buf4 = (const u4 FAR *)(const void FAR *)buf; - buf4--; - while (len >= 32) { - DOBIG32; - len -= 32; - } - while (len >= 4) { - DOBIG4; - len -= 4; - } - buf4++; - buf = (const unsigned char FAR *)buf4; - - if (len) do { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - } while (--len); - c = ~c; - return (unsigned long)(REV(c)); -} - -#endif /* BYFOUR */ - -#define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ - -/* ========================================================================= */ -local unsigned long gf2_matrix_times(mat, vec) - unsigned long *mat; - unsigned long vec; -{ - unsigned long sum; - - sum = 0; - while (vec) { - if (vec & 1) - sum ^= *mat; - vec >>= 1; - mat++; - } - return sum; -} - -/* ========================================================================= */ -local void gf2_matrix_square(square, mat) - unsigned long *square; - unsigned long *mat; -{ - int n; - - for (n = 0; n < GF2_DIM; n++) - square[n] = gf2_matrix_times(mat, mat[n]); -} - -/* ========================================================================= */ -local uLong crc32_combine_(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off64_t len2; -{ - int n; - unsigned long row; - unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ - unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ - - /* degenerate case (also disallow negative lengths) */ - if (len2 <= 0) - return crc1; - - /* put operator for one zero bit in odd */ - odd[0] = 0xedb88320UL; /* CRC-32 polynomial */ - row = 1; - for (n = 1; n < GF2_DIM; n++) { - odd[n] = row; - row <<= 1; - } - - /* put operator for two zero bits in even */ - gf2_matrix_square(even, odd); - - /* put operator for four zero bits in odd */ - gf2_matrix_square(odd, even); - - /* apply len2 zeros to crc1 (first square will put the operator for one - zero byte, eight zero bits, in even) */ - do { - /* apply zeros operator for this bit of len2 */ - gf2_matrix_square(even, odd); - if (len2 & 1) - crc1 = gf2_matrix_times(even, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - if (len2 == 0) - break; - - /* another iteration of the loop with odd and even swapped */ - gf2_matrix_square(odd, even); - if (len2 & 1) - crc1 = gf2_matrix_times(odd, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - } while (len2 != 0); - - /* return combined crc */ - crc1 ^= crc2; - return crc1; -} - -/* ========================================================================= */ -uLong ZEXPORT crc32_combine(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off_t len2; -{ - return crc32_combine_(crc1, crc2, len2); -} - -uLong ZEXPORT crc32_combine64(crc1, crc2, len2) - uLong crc1; - uLong crc2; - z_off64_t len2; -{ - return crc32_combine_(crc1, crc2, len2); -} diff --git a/zlib/zcrc32.h b/zlib/zcrc32.h deleted file mode 100755 index 8053b61..0000000 --- a/zlib/zcrc32.h +++ /dev/null @@ -1,441 +0,0 @@ -/* crc32.h -- tables for rapid CRC calculation - * Generated automatically by crc32.c - */ - -local const unsigned long FAR crc_table[TBLS][256] = -{ - { - 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, - 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, - 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, - 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, - 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, - 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, - 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, - 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, - 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, - 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, - 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, - 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, - 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, - 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, - 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, - 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, - 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, - 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, - 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, - 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, - 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, - 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, - 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, - 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, - 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, - 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, - 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, - 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, - 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, - 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, - 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, - 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, - 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, - 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, - 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, - 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, - 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, - 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, - 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, - 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, - 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, - 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, - 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, - 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, - 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, - 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, - 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, - 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, - 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, - 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, - 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, - 0x2d02ef8dUL -#ifdef BYFOUR - }, - { - 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, - 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, - 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, - 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, - 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, - 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, - 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, - 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, - 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, - 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, - 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, - 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, - 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, - 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, - 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, - 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, - 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, - 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, - 0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL, - 0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL, - 0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL, - 0xb43fd0eeUL, 0x9f12832dUL, 0x8609b26cUL, 0xc94824abUL, 0xd05315eaUL, - 0xfb7e4629UL, 0xe2657768UL, 0x2f3f79f6UL, 0x362448b7UL, 0x1d091b74UL, - 0x04122a35UL, 0x4b53bcf2UL, 0x52488db3UL, 0x7965de70UL, 0x607eef31UL, - 0xe7e6f3feUL, 0xfefdc2bfUL, 0xd5d0917cUL, 0xcccba03dUL, 0x838a36faUL, - 0x9a9107bbUL, 0xb1bc5478UL, 0xa8a76539UL, 0x3b83984bUL, 0x2298a90aUL, - 0x09b5fac9UL, 0x10aecb88UL, 0x5fef5d4fUL, 0x46f46c0eUL, 0x6dd93fcdUL, - 0x74c20e8cUL, 0xf35a1243UL, 0xea412302UL, 0xc16c70c1UL, 0xd8774180UL, - 0x9736d747UL, 0x8e2de606UL, 0xa500b5c5UL, 0xbc1b8484UL, 0x71418a1aUL, - 0x685abb5bUL, 0x4377e898UL, 0x5a6cd9d9UL, 0x152d4f1eUL, 0x0c367e5fUL, - 0x271b2d9cUL, 0x3e001cddUL, 0xb9980012UL, 0xa0833153UL, 0x8bae6290UL, - 0x92b553d1UL, 0xddf4c516UL, 0xc4eff457UL, 0xefc2a794UL, 0xf6d996d5UL, - 0xae07bce9UL, 0xb71c8da8UL, 0x9c31de6bUL, 0x852aef2aUL, 0xca6b79edUL, - 0xd37048acUL, 0xf85d1b6fUL, 0xe1462a2eUL, 0x66de36e1UL, 0x7fc507a0UL, - 0x54e85463UL, 0x4df36522UL, 0x02b2f3e5UL, 0x1ba9c2a4UL, 0x30849167UL, - 0x299fa026UL, 0xe4c5aeb8UL, 0xfdde9ff9UL, 0xd6f3cc3aUL, 0xcfe8fd7bUL, - 0x80a96bbcUL, 0x99b25afdUL, 0xb29f093eUL, 0xab84387fUL, 0x2c1c24b0UL, - 0x350715f1UL, 0x1e2a4632UL, 0x07317773UL, 0x4870e1b4UL, 0x516bd0f5UL, - 0x7a468336UL, 0x635db277UL, 0xcbfad74eUL, 0xd2e1e60fUL, 0xf9ccb5ccUL, - 0xe0d7848dUL, 0xaf96124aUL, 0xb68d230bUL, 0x9da070c8UL, 0x84bb4189UL, - 0x03235d46UL, 0x1a386c07UL, 0x31153fc4UL, 0x280e0e85UL, 0x674f9842UL, - 0x7e54a903UL, 0x5579fac0UL, 0x4c62cb81UL, 0x8138c51fUL, 0x9823f45eUL, - 0xb30ea79dUL, 0xaa1596dcUL, 0xe554001bUL, 0xfc4f315aUL, 0xd7626299UL, - 0xce7953d8UL, 0x49e14f17UL, 0x50fa7e56UL, 0x7bd72d95UL, 0x62cc1cd4UL, - 0x2d8d8a13UL, 0x3496bb52UL, 0x1fbbe891UL, 0x06a0d9d0UL, 0x5e7ef3ecUL, - 0x4765c2adUL, 0x6c48916eUL, 0x7553a02fUL, 0x3a1236e8UL, 0x230907a9UL, - 0x0824546aUL, 0x113f652bUL, 0x96a779e4UL, 0x8fbc48a5UL, 0xa4911b66UL, - 0xbd8a2a27UL, 0xf2cbbce0UL, 0xebd08da1UL, 0xc0fdde62UL, 0xd9e6ef23UL, - 0x14bce1bdUL, 0x0da7d0fcUL, 0x268a833fUL, 0x3f91b27eUL, 0x70d024b9UL, - 0x69cb15f8UL, 0x42e6463bUL, 0x5bfd777aUL, 0xdc656bb5UL, 0xc57e5af4UL, - 0xee530937UL, 0xf7483876UL, 0xb809aeb1UL, 0xa1129ff0UL, 0x8a3fcc33UL, - 0x9324fd72UL - }, - { - 0x00000000UL, 0x01c26a37UL, 0x0384d46eUL, 0x0246be59UL, 0x0709a8dcUL, - 0x06cbc2ebUL, 0x048d7cb2UL, 0x054f1685UL, 0x0e1351b8UL, 0x0fd13b8fUL, - 0x0d9785d6UL, 0x0c55efe1UL, 0x091af964UL, 0x08d89353UL, 0x0a9e2d0aUL, - 0x0b5c473dUL, 0x1c26a370UL, 0x1de4c947UL, 0x1fa2771eUL, 0x1e601d29UL, - 0x1b2f0bacUL, 0x1aed619bUL, 0x18abdfc2UL, 0x1969b5f5UL, 0x1235f2c8UL, - 0x13f798ffUL, 0x11b126a6UL, 0x10734c91UL, 0x153c5a14UL, 0x14fe3023UL, - 0x16b88e7aUL, 0x177ae44dUL, 0x384d46e0UL, 0x398f2cd7UL, 0x3bc9928eUL, - 0x3a0bf8b9UL, 0x3f44ee3cUL, 0x3e86840bUL, 0x3cc03a52UL, 0x3d025065UL, - 0x365e1758UL, 0x379c7d6fUL, 0x35dac336UL, 0x3418a901UL, 0x3157bf84UL, - 0x3095d5b3UL, 0x32d36beaUL, 0x331101ddUL, 0x246be590UL, 0x25a98fa7UL, - 0x27ef31feUL, 0x262d5bc9UL, 0x23624d4cUL, 0x22a0277bUL, 0x20e69922UL, - 0x2124f315UL, 0x2a78b428UL, 0x2bbade1fUL, 0x29fc6046UL, 0x283e0a71UL, - 0x2d711cf4UL, 0x2cb376c3UL, 0x2ef5c89aUL, 0x2f37a2adUL, 0x709a8dc0UL, - 0x7158e7f7UL, 0x731e59aeUL, 0x72dc3399UL, 0x7793251cUL, 0x76514f2bUL, - 0x7417f172UL, 0x75d59b45UL, 0x7e89dc78UL, 0x7f4bb64fUL, 0x7d0d0816UL, - 0x7ccf6221UL, 0x798074a4UL, 0x78421e93UL, 0x7a04a0caUL, 0x7bc6cafdUL, - 0x6cbc2eb0UL, 0x6d7e4487UL, 0x6f38fadeUL, 0x6efa90e9UL, 0x6bb5866cUL, - 0x6a77ec5bUL, 0x68315202UL, 0x69f33835UL, 0x62af7f08UL, 0x636d153fUL, - 0x612bab66UL, 0x60e9c151UL, 0x65a6d7d4UL, 0x6464bde3UL, 0x662203baUL, - 0x67e0698dUL, 0x48d7cb20UL, 0x4915a117UL, 0x4b531f4eUL, 0x4a917579UL, - 0x4fde63fcUL, 0x4e1c09cbUL, 0x4c5ab792UL, 0x4d98dda5UL, 0x46c49a98UL, - 0x4706f0afUL, 0x45404ef6UL, 0x448224c1UL, 0x41cd3244UL, 0x400f5873UL, - 0x4249e62aUL, 0x438b8c1dUL, 0x54f16850UL, 0x55330267UL, 0x5775bc3eUL, - 0x56b7d609UL, 0x53f8c08cUL, 0x523aaabbUL, 0x507c14e2UL, 0x51be7ed5UL, - 0x5ae239e8UL, 0x5b2053dfUL, 0x5966ed86UL, 0x58a487b1UL, 0x5deb9134UL, - 0x5c29fb03UL, 0x5e6f455aUL, 0x5fad2f6dUL, 0xe1351b80UL, 0xe0f771b7UL, - 0xe2b1cfeeUL, 0xe373a5d9UL, 0xe63cb35cUL, 0xe7fed96bUL, 0xe5b86732UL, - 0xe47a0d05UL, 0xef264a38UL, 0xeee4200fUL, 0xeca29e56UL, 0xed60f461UL, - 0xe82fe2e4UL, 0xe9ed88d3UL, 0xebab368aUL, 0xea695cbdUL, 0xfd13b8f0UL, - 0xfcd1d2c7UL, 0xfe976c9eUL, 0xff5506a9UL, 0xfa1a102cUL, 0xfbd87a1bUL, - 0xf99ec442UL, 0xf85cae75UL, 0xf300e948UL, 0xf2c2837fUL, 0xf0843d26UL, - 0xf1465711UL, 0xf4094194UL, 0xf5cb2ba3UL, 0xf78d95faUL, 0xf64fffcdUL, - 0xd9785d60UL, 0xd8ba3757UL, 0xdafc890eUL, 0xdb3ee339UL, 0xde71f5bcUL, - 0xdfb39f8bUL, 0xddf521d2UL, 0xdc374be5UL, 0xd76b0cd8UL, 0xd6a966efUL, - 0xd4efd8b6UL, 0xd52db281UL, 0xd062a404UL, 0xd1a0ce33UL, 0xd3e6706aUL, - 0xd2241a5dUL, 0xc55efe10UL, 0xc49c9427UL, 0xc6da2a7eUL, 0xc7184049UL, - 0xc25756ccUL, 0xc3953cfbUL, 0xc1d382a2UL, 0xc011e895UL, 0xcb4dafa8UL, - 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0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, - 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, - 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, - 0xf10605deUL -#endif - } -}; diff --git a/zlib/zlib.3 b/zlib/zlib.3 deleted file mode 100755 index 27adc4c..0000000 --- a/zlib/zlib.3 +++ /dev/null @@ -1,151 +0,0 @@ -.TH ZLIB 3 "19 Apr 2010" -.SH NAME -zlib \- compression/decompression library -.SH SYNOPSIS -[see -.I zlib.h -for full description] -.SH DESCRIPTION -The -.I zlib -library is a general purpose data compression library. -The code is thread safe, assuming that the standard library functions -used are thread safe, such as memory allocation routines. -It provides in-memory compression and decompression functions, -including integrity checks of the uncompressed data. -This version of the library supports only one compression method (deflation) -but other algorithms may be added later -with the same stream interface. -.LP -Compression can be done in a single step if the buffers are large enough -or can be done by repeated calls of the compression function. -In the latter case, -the application must provide more input and/or consume the output -(providing more output space) before each call. -.LP -The library also supports reading and writing files in -.IR gzip (1) -(.gz) format -with an interface similar to that of stdio. -.LP -The library does not install any signal handler. -The decoder checks the consistency of the compressed data, -so the library should never crash even in the case of corrupted input. -.LP -All functions of the compression library are documented in the file -.IR zlib.h . -The distribution source includes examples of use of the library -in the files -.I example.c -and -.IR minigzip.c, -as well as other examples in the -.IR examples/ -directory. -.LP -Changes to this version are documented in the file -.I ChangeLog -that accompanies the source. -.LP -.I zlib -is available in Java using the java.util.zip package: -.IP -http://java.sun.com/developer/technicalArticles/Programming/compression/ -.LP -A Perl interface to -.IR zlib , -written by Paul Marquess (pmqs@cpan.org), -is available at CPAN (Comprehensive Perl Archive Network) sites, -including: -.IP -http://search.cpan.org/~pmqs/IO-Compress-Zlib/ -.LP -A Python interface to -.IR zlib , -written by A.M. Kuchling (amk@magnet.com), -is available in Python 1.5 and later versions: -.IP -http://www.python.org/doc/lib/module-zlib.html -.LP -.I zlib -is built into -.IR tcl: -.IP -http://wiki.tcl.tk/4610 -.LP -An experimental package to read and write files in .zip format, -written on top of -.I zlib -by Gilles Vollant (info@winimage.com), -is available at: -.IP -http://www.winimage.com/zLibDll/minizip.html -and also in the -.I contrib/minizip -directory of the main -.I zlib -source distribution. -.SH "SEE ALSO" -The -.I zlib -web site can be found at: -.IP -http://zlib.net/ -.LP -The data format used by the zlib library is described by RFC -(Request for Comments) 1950 to 1952 in the files: -.IP -http://www.ietf.org/rfc/rfc1950.txt (for the zlib header and trailer format) -.br -http://www.ietf.org/rfc/rfc1951.txt (for the deflate compressed data format) -.br -http://www.ietf.org/rfc/rfc1952.txt (for the gzip header and trailer format) -.LP -Mark Nelson wrote an article about -.I zlib -for the Jan. 1997 issue of Dr. Dobb's Journal; -a copy of the article is available at: -.IP -http://marknelson.us/1997/01/01/zlib-engine/ -.SH "REPORTING PROBLEMS" -Before reporting a problem, -please check the -.I zlib -web site to verify that you have the latest version of -.IR zlib ; -otherwise, -obtain the latest version and see if the problem still exists. -Please read the -.I zlib -FAQ at: -.IP -http://zlib.net/zlib_faq.html -.LP -before asking for help. -Send questions and/or comments to zlib@gzip.org, -or (for the Windows DLL version) to Gilles Vollant (info@winimage.com). -.SH AUTHORS -Version 1.2.5 -Copyright (C) 1995-2010 Jean-loup Gailly (jloup@gzip.org) -and Mark Adler (madler@alumni.caltech.edu). -.LP -This software is provided "as-is," -without any express or implied warranty. -In no event will the authors be held liable for any damages -arising from the use of this software. -See the distribution directory with respect to requirements -governing redistribution. -The deflate format used by -.I zlib -was defined by Phil Katz. -The deflate and -.I zlib -specifications were written by L. Peter Deutsch. -Thanks to all the people who reported problems and suggested various -improvements in -.IR zlib ; -who are too numerous to cite here. -.LP -UNIX manual page by R. P. C. Rodgers, -U.S. National Library of Medicine (rodgers@nlm.nih.gov). -.\" end of man page diff --git a/zlib/zlib.3.pdf b/zlib/zlib.3.pdf deleted file mode 100755 index 9f8a2c3..0000000 Binary files a/zlib/zlib.3.pdf and /dev/null differ diff --git a/zlib/zlib.h b/zlib/zlib.h deleted file mode 100755 index bfbba83..0000000 --- a/zlib/zlib.h +++ /dev/null @@ -1,1613 +0,0 @@ -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.2.5, April 19th, 2010 - - Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -#ifndef ZLIB_H -#define ZLIB_H - -#include "zconf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZLIB_VERSION "1.2.5" -#define ZLIB_VERNUM 0x1250 -#define ZLIB_VER_MAJOR 1 -#define ZLIB_VER_MINOR 2 -#define ZLIB_VER_REVISION 5 -#define ZLIB_VER_SUBREVISION 0 - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed data. - This version of the library supports only one compression method (deflation) - but other algorithms will be added later and will have the same stream - interface. - - Compression can be done in a single step if the buffers are large enough, - or can be done by repeated calls of the compression function. In the latter - case, the application must provide more input and/or consume the output - (providing more output space) before each call. - - The compressed data format used by default by the in-memory functions is - the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped - around a deflate stream, which is itself documented in RFC 1951. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio using the functions that start - with "gz". The gzip format is different from the zlib format. gzip is a - gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. - - This library can optionally read and write gzip streams in memory as well. - - The zlib format was designed to be compact and fast for use in memory - and on communications channels. The gzip format was designed for single- - file compression on file systems, has a larger header than zlib to maintain - directory information, and uses a different, slower check method than zlib. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never crash - even in case of corrupted input. -*/ - -typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); -typedef void (*free_func) OF((voidpf opaque, voidpf address)); - -struct internal_state; - -typedef struct z_stream_s { - Bytef *next_in; /* next input byte */ - uInt avail_in; /* number of bytes available at next_in */ - uLong total_in; /* total nb of input bytes read so far */ - - Bytef *next_out; /* next output byte should be put there */ - uInt avail_out; /* remaining free space at next_out */ - uLong total_out; /* total nb of bytes output so far */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state FAR *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - voidpf opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: binary or text */ - uLong adler; /* adler32 value of the uncompressed data */ - uLong reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream FAR *z_streamp; - -/* - gzip header information passed to and from zlib routines. See RFC 1952 - for more details on the meanings of these fields. -*/ -typedef struct gz_header_s { - int text; /* true if compressed data believed to be text */ - uLong time; /* modification time */ - int xflags; /* extra flags (not used when writing a gzip file) */ - int os; /* operating system */ - Bytef *extra; /* pointer to extra field or Z_NULL if none */ - uInt extra_len; /* extra field length (valid if extra != Z_NULL) */ - uInt extra_max; /* space at extra (only when reading header) */ - Bytef *name; /* pointer to zero-terminated file name or Z_NULL */ - uInt name_max; /* space at name (only when reading header) */ - Bytef *comment; /* pointer to zero-terminated comment or Z_NULL */ - uInt comm_max; /* space at comment (only when reading header) */ - int hcrc; /* true if there was or will be a header crc */ - int done; /* true when done reading gzip header (not used - when writing a gzip file) */ -} gz_header; - -typedef gz_header FAR *gz_headerp; - -/* - The application must update next_in and avail_in when avail_in has dropped - to zero. It must update next_out and avail_out when avail_out has dropped - to zero. The application must initialize zalloc, zfree and opaque before - calling the init function. All other fields are set by the compression - library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this if - the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, pointers - returned by zalloc for objects of exactly 65536 bytes *must* have their - offset normalized to zero. The default allocation function provided by this - library ensures this (see zutil.c). To reduce memory requirements and avoid - any allocation of 64K objects, at the expense of compression ratio, compile - the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or progress - reports. After compression, total_in holds the total size of the - uncompressed data and may be saved for use in the decompressor (particularly - if the decompressor wants to decompress everything in a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -#define Z_BLOCK 5 -#define Z_TREES 6 -/* Allowed flush values; see deflate() and inflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_RLE 3 -#define Z_FIXED 4 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_TEXT 1 -#define Z_ASCII Z_TEXT /* for compatibility with 1.2.2 and earlier */ -#define Z_UNKNOWN 2 -/* Possible values of the data_type field (though see inflate()) */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - - /* basic functions */ - -ZEXTERN const char * ZEXPORT zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is not - compatible with the zlib.h header file used by the application. This check - is automatically made by deflateInit and inflateInit. - */ - -/* -ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. If - zalloc and zfree are set to Z_NULL, deflateInit updates them to use default - allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at all - (the input data is simply copied a block at a time). Z_DEFAULT_COMPRESSION - requests a default compromise between speed and compression (currently - equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if level is not a valid compression level, or - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). msg is set to null - if there is no error message. deflateInit does not perform any compression: - this will be done by deflate(). -*/ - - -ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). Some - output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating avail_in or avail_out accordingly; avail_out should - never be zero before the call. The application can consume the compressed - output when it wants, for example when the output buffer is full (avail_out - == 0), or after each call of deflate(). If deflate returns Z_OK and with - zero avail_out, it must be called again after making room in the output - buffer because there might be more output pending. - - Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to - decide how much data to accumulate before producing output, in order to - maximize compression. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In - particular avail_in is zero after the call if enough output space has been - provided before the call.) Flushing may degrade compression for some - compression algorithms and so it should be used only when necessary. This - completes the current deflate block and follows it with an empty stored block - that is three bits plus filler bits to the next byte, followed by four bytes - (00 00 ff ff). - - If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the - output buffer, but the output is not aligned to a byte boundary. All of the - input data so far will be available to the decompressor, as for Z_SYNC_FLUSH. - This completes the current deflate block and follows it with an empty fixed - codes block that is 10 bits long. This assures that enough bytes are output - in order for the decompressor to finish the block before the empty fixed code - block. - - If flush is set to Z_BLOCK, a deflate block is completed and emitted, as - for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to - seven bits of the current block are held to be written as the next byte after - the next deflate block is completed. In this case, the decompressor may not - be provided enough bits at this point in order to complete decompression of - the data provided so far to the compressor. It may need to wait for the next - block to be emitted. This is for advanced applications that need to control - the emission of deflate blocks. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that - avail_out is greater than six to avoid repeated flush markers due to - avail_out == 0 on return. - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there was - enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the stream - are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least the - value returned by deflateBound (see below). If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so far (that is, total_in bytes). - - deflate() may update strm->data_type if it can make a good guess about - the input data type (Z_BINARY or Z_TEXT). In doubt, the data is considered - binary. This field is only for information purposes and does not affect the - compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not - fatal, and deflate() can be called again with more input and more output - space to continue compressing. -*/ - - -ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, msg - may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the - exact value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit() does not process any header information -- that is deferred - until inflate() is called. -*/ - - -ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce - some output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing will - resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there is - no more input data or no more space in the output buffer (see below about - the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming more - output, and updating the next_* and avail_* values accordingly. The - application can consume the uncompressed output when it wants, for example - when the output buffer is full (avail_out == 0), or after each call of - inflate(). If inflate returns Z_OK and with zero avail_out, it must be - called again after making room in the output buffer because there might be - more output pending. - - The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH, - Z_BLOCK, or Z_TREES. Z_SYNC_FLUSH requests that inflate() flush as much - output as possible to the output buffer. Z_BLOCK requests that inflate() - stop if and when it gets to the next deflate block boundary. When decoding - the zlib or gzip format, this will cause inflate() to return immediately - after the header and before the first block. When doing a raw inflate, - inflate() will go ahead and process the first block, and will return when it - gets to the end of that block, or when it runs out of data. - - The Z_BLOCK option assists in appending to or combining deflate streams. - Also to assist in this, on return inflate() will set strm->data_type to the - number of unused bits in the last byte taken from strm->next_in, plus 64 if - inflate() is currently decoding the last block in the deflate stream, plus - 128 if inflate() returned immediately after decoding an end-of-block code or - decoding the complete header up to just before the first byte of the deflate - stream. The end-of-block will not be indicated until all of the uncompressed - data from that block has been written to strm->next_out. The number of - unused bits may in general be greater than seven, except when bit 7 of - data_type is set, in which case the number of unused bits will be less than - eight. data_type is set as noted here every time inflate() returns for all - flush options, and so can be used to determine the amount of currently - consumed input in bits. - - The Z_TREES option behaves as Z_BLOCK does, but it also returns when the - end of each deflate block header is reached, before any actual data in that - block is decoded. This allows the caller to determine the length of the - deflate block header for later use in random access within a deflate block. - 256 is added to the value of strm->data_type when inflate() returns - immediately after reaching the end of the deflate block header. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step (a - single call of inflate), the parameter flush should be set to Z_FINISH. In - this case all pending input is processed and all pending output is flushed; - avail_out must be large enough to hold all the uncompressed data. (The size - of the uncompressed data may have been saved by the compressor for this - purpose.) The next operation on this stream must be inflateEnd to deallocate - the decompression state. The use of Z_FINISH is never required, but can be - used to inform inflate that a faster approach may be used for the single - inflate() call. - - In this implementation, inflate() always flushes as much output as - possible to the output buffer, and always uses the faster approach on the - first call. So the only effect of the flush parameter in this implementation - is on the return value of inflate(), as noted below, or when it returns early - because Z_BLOCK or Z_TREES is used. - - If a preset dictionary is needed after this call (see inflateSetDictionary - below), inflate sets strm->adler to the adler32 checksum of the dictionary - chosen by the compressor and returns Z_NEED_DICT; otherwise it sets - strm->adler to the adler32 checksum of all output produced so far (that is, - total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described - below. At the end of the stream, inflate() checks that its computed adler32 - checksum is equal to that saved by the compressor and returns Z_STREAM_END - only if the checksum is correct. - - inflate() can decompress and check either zlib-wrapped or gzip-wrapped - deflate data. The header type is detected automatically, if requested when - initializing with inflateInit2(). Any information contained in the gzip - header is not retained, so applications that need that information should - instead use raw inflate, see inflateInit2() below, or inflateBack() and - perform their own processing of the gzip header and trailer. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect check - value), Z_STREAM_ERROR if the stream structure was inconsistent (for example - next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory, - Z_BUF_ERROR if no progress is possible or if there was not enough room in the - output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and - inflate() can be called again with more input and more output space to - continue decompressing. If Z_DATA_ERROR is returned, the application may - then call inflateSync() to look for a good compression block if a partial - recovery of the data is desired. -*/ - - -ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any pending - output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by the - caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - windowBits can also be -8..-15 for raw deflate. In this case, -windowBits - determines the window size. deflate() will then generate raw deflate data - with no zlib header or trailer, and will not compute an adler32 check value. - - windowBits can also be greater than 15 for optional gzip encoding. Add - 16 to windowBits to write a simple gzip header and trailer around the - compressed data instead of a zlib wrapper. The gzip header will have no - file name, no extra data, no comment, no modification time (set to zero), no - header crc, and the operating system will be set to 255 (unknown). If a - gzip stream is being written, strm->adler is a crc32 instead of an adler32. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but is - slow and reduces compression ratio; memLevel=9 uses maximum memory for - optimal speed. The default value is 8. See zconf.h for total memory usage - as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match), or Z_RLE to limit match distances to one (run-length - encoding). Filtered data consists mostly of small values with a somewhat - random distribution. In this case, the compression algorithm is tuned to - compress them better. The effect of Z_FILTERED is to force more Huffman - coding and less string matching; it is somewhat intermediate between - Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as - fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data. The - strategy parameter only affects the compression ratio but not the - correctness of the compressed output even if it is not set appropriately. - Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler - decoder for special applications. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid - method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is - incompatible with the version assumed by the caller (ZLIB_VERSION). msg is - set to null if there is no error message. deflateInit2 does not perform any - compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any call - of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size - provided in deflateInit or deflateInit2. Thus the strings most likely to be - useful should be put at the end of the dictionary, not at the front. In - addition, the current implementation of deflate will use at most the window - size minus 262 bytes of the provided dictionary. - - Upon return of this function, strm->adler is set to the adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) If a raw deflate was requested, then the - adler32 value is not computed and strm->adler is not set. - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and can - consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. The - stream will keep the same compression level and any other attributes that - may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different strategy. - If the compression level is changed, the input available so far is - compressed with the old level (and may be flushed); the new level will take - effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to be - compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if - strm->avail_out was zero. -*/ - -ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm, - int good_length, - int max_lazy, - int nice_length, - int max_chain)); -/* - Fine tune deflate's internal compression parameters. This should only be - used by someone who understands the algorithm used by zlib's deflate for - searching for the best matching string, and even then only by the most - fanatic optimizer trying to squeeze out the last compressed bit for their - specific input data. Read the deflate.c source code for the meaning of the - max_lazy, good_length, nice_length, and max_chain parameters. - - deflateTune() can be called after deflateInit() or deflateInit2(), and - returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream. - */ - -ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, - uLong sourceLen)); -/* - deflateBound() returns an upper bound on the compressed size after - deflation of sourceLen bytes. It must be called after deflateInit() or - deflateInit2(), and after deflateSetHeader(), if used. This would be used - to allocate an output buffer for deflation in a single pass, and so would be - called before deflate(). -*/ - -ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - deflatePrime() inserts bits in the deflate output stream. The intent - is that this function is used to start off the deflate output with the bits - leftover from a previous deflate stream when appending to it. As such, this - function can only be used for raw deflate, and must be used before the first - deflate() call after a deflateInit2() or deflateReset(). bits must be less - than or equal to 16, and that many of the least significant bits of value - will be inserted in the output. - - deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm, - gz_headerp head)); -/* - deflateSetHeader() provides gzip header information for when a gzip - stream is requested by deflateInit2(). deflateSetHeader() may be called - after deflateInit2() or deflateReset() and before the first call of - deflate(). The text, time, os, extra field, name, and comment information - in the provided gz_header structure are written to the gzip header (xflag is - ignored -- the extra flags are set according to the compression level). The - caller must assure that, if not Z_NULL, name and comment are terminated with - a zero byte, and that if extra is not Z_NULL, that extra_len bytes are - available there. If hcrc is true, a gzip header crc is included. Note that - the current versions of the command-line version of gzip (up through version - 1.3.x) do not support header crc's, and will report that it is a "multi-part - gzip file" and give up. - - If deflateSetHeader is not used, the default gzip header has text false, - the time set to zero, and os set to 255, with no extra, name, or comment - fields. The gzip header is returned to the default state by deflateReset(). - - deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. windowBits must be greater than or equal to the windowBits value - provided to deflateInit2() while compressing, or it must be equal to 15 if - deflateInit2() was not used. If a compressed stream with a larger window - size is given as input, inflate() will return with the error code - Z_DATA_ERROR instead of trying to allocate a larger window. - - windowBits can also be zero to request that inflate use the window size in - the zlib header of the compressed stream. - - windowBits can also be -8..-15 for raw inflate. In this case, -windowBits - determines the window size. inflate() will then process raw deflate data, - not looking for a zlib or gzip header, not generating a check value, and not - looking for any check values for comparison at the end of the stream. This - is for use with other formats that use the deflate compressed data format - such as zip. Those formats provide their own check values. If a custom - format is developed using the raw deflate format for compressed data, it is - recommended that a check value such as an adler32 or a crc32 be applied to - the uncompressed data as is done in the zlib, gzip, and zip formats. For - most applications, the zlib format should be used as is. Note that comments - above on the use in deflateInit2() applies to the magnitude of windowBits. - - windowBits can also be greater than 15 for optional gzip decoding. Add - 32 to windowBits to enable zlib and gzip decoding with automatic header - detection, or add 16 to decode only the gzip format (the zlib format will - return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a - crc32 instead of an adler32. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller, or Z_STREAM_ERROR if the parameters are - invalid, such as a null pointer to the structure. msg is set to null if - there is no error message. inflateInit2 does not perform any decompression - apart from possibly reading the zlib header if present: actual decompression - will be done by inflate(). (So next_in and avail_in may be modified, but - next_out and avail_out are unused and unchanged.) The current implementation - of inflateInit2() does not process any header information -- that is - deferred until inflate() is called. -*/ - -ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, - const Bytef *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate, - if that call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the adler32 value returned by that call of inflate. - The compressor and decompressor must use exactly the same dictionary (see - deflateSetDictionary). For raw inflate, this function can be called - immediately after inflateInit2() or inflateReset() and before any call of - inflate() to set the dictionary. The application must insure that the - dictionary that was used for compression is provided. - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (e.g. dictionary being Z_NULL) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been - found, or Z_STREAM_ERROR if the stream structure was inconsistent. In the - success case, the application may save the current current value of total_in - which indicates where valid compressed data was found. In the error case, - the application may repeatedly call inflateSync, providing more input each - time, until success or end of the input data. -*/ - -ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when randomly accessing a large stream. The - first pass through the stream can periodically record the inflate state, - allowing restarting inflate at those points when randomly accessing the - stream. - - inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being Z_NULL). msg is left unchanged in both source and - destination. -*/ - -ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. The - stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL). -*/ - -ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm, - int windowBits)); -/* - This function is the same as inflateReset, but it also permits changing - the wrap and window size requests. The windowBits parameter is interpreted - the same as it is for inflateInit2. - - inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being Z_NULL), or if - the windowBits parameter is invalid. -*/ - -ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm, - int bits, - int value)); -/* - This function inserts bits in the inflate input stream. The intent is - that this function is used to start inflating at a bit position in the - middle of a byte. The provided bits will be used before any bytes are used - from next_in. This function should only be used with raw inflate, and - should be used before the first inflate() call after inflateInit2() or - inflateReset(). bits must be less than or equal to 16, and that many of the - least significant bits of value will be inserted in the input. - - If bits is negative, then the input stream bit buffer is emptied. Then - inflatePrime() can be called again to put bits in the buffer. This is used - to clear out bits leftover after feeding inflate a block description prior - to feeding inflate codes. - - inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm)); -/* - This function returns two values, one in the lower 16 bits of the return - value, and the other in the remaining upper bits, obtained by shifting the - return value down 16 bits. If the upper value is -1 and the lower value is - zero, then inflate() is currently decoding information outside of a block. - If the upper value is -1 and the lower value is non-zero, then inflate is in - the middle of a stored block, with the lower value equaling the number of - bytes from the input remaining to copy. If the upper value is not -1, then - it is the number of bits back from the current bit position in the input of - the code (literal or length/distance pair) currently being processed. In - that case the lower value is the number of bytes already emitted for that - code. - - A code is being processed if inflate is waiting for more input to complete - decoding of the code, or if it has completed decoding but is waiting for - more output space to write the literal or match data. - - inflateMark() is used to mark locations in the input data for random - access, which may be at bit positions, and to note those cases where the - output of a code may span boundaries of random access blocks. The current - location in the input stream can be determined from avail_in and data_type - as noted in the description for the Z_BLOCK flush parameter for inflate. - - inflateMark returns the value noted above or -1 << 16 if the provided - source stream state was inconsistent. -*/ - -ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm, - gz_headerp head)); -/* - inflateGetHeader() requests that gzip header information be stored in the - provided gz_header structure. inflateGetHeader() may be called after - inflateInit2() or inflateReset(), and before the first call of inflate(). - As inflate() processes the gzip stream, head->done is zero until the header - is completed, at which time head->done is set to one. If a zlib stream is - being decoded, then head->done is set to -1 to indicate that there will be - no gzip header information forthcoming. Note that Z_BLOCK or Z_TREES can be - used to force inflate() to return immediately after header processing is - complete and before any actual data is decompressed. - - The text, time, xflags, and os fields are filled in with the gzip header - contents. hcrc is set to true if there is a header CRC. (The header CRC - was valid if done is set to one.) If extra is not Z_NULL, then extra_max - contains the maximum number of bytes to write to extra. Once done is true, - extra_len contains the actual extra field length, and extra contains the - extra field, or that field truncated if extra_max is less than extra_len. - If name is not Z_NULL, then up to name_max characters are written there, - terminated with a zero unless the length is greater than name_max. If - comment is not Z_NULL, then up to comm_max characters are written there, - terminated with a zero unless the length is greater than comm_max. When any - of extra, name, or comment are not Z_NULL and the respective field is not - present in the header, then that field is set to Z_NULL to signal its - absence. This allows the use of deflateSetHeader() with the returned - structure to duplicate the header. However if those fields are set to - allocated memory, then the application will need to save those pointers - elsewhere so that they can be eventually freed. - - If inflateGetHeader is not used, then the header information is simply - discarded. The header is always checked for validity, including the header - CRC if present. inflateReset() will reset the process to discard the header - information. The application would need to call inflateGetHeader() again to - retrieve the header from the next gzip stream. - - inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent. -*/ - -/* -ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits, - unsigned char FAR *window)); - - Initialize the internal stream state for decompression using inflateBack() - calls. The fields zalloc, zfree and opaque in strm must be initialized - before the call. If zalloc and zfree are Z_NULL, then the default library- - derived memory allocation routines are used. windowBits is the base two - logarithm of the window size, in the range 8..15. window is a caller - supplied buffer of that size. Except for special applications where it is - assured that deflate was used with small window sizes, windowBits must be 15 - and a 32K byte window must be supplied to be able to decompress general - deflate streams. - - See inflateBack() for the usage of these routines. - - inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of - the paramaters are invalid, Z_MEM_ERROR if the internal state could not be - allocated, or Z_VERSION_ERROR if the version of the library does not match - the version of the header file. -*/ - -typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); -typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); - -ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm, - in_func in, void FAR *in_desc, - out_func out, void FAR *out_desc)); -/* - inflateBack() does a raw inflate with a single call using a call-back - interface for input and output. This is more efficient than inflate() for - file i/o applications in that it avoids copying between the output and the - sliding window by simply making the window itself the output buffer. This - function trusts the application to not change the output buffer passed by - the output function, at least until inflateBack() returns. - - inflateBackInit() must be called first to allocate the internal state - and to initialize the state with the user-provided window buffer. - inflateBack() may then be used multiple times to inflate a complete, raw - deflate stream with each call. inflateBackEnd() is then called to free the - allocated state. - - A raw deflate stream is one with no zlib or gzip header or trailer. - This routine would normally be used in a utility that reads zip or gzip - files and writes out uncompressed files. The utility would decode the - header and process the trailer on its own, hence this routine expects only - the raw deflate stream to decompress. This is different from the normal - behavior of inflate(), which expects either a zlib or gzip header and - trailer around the deflate stream. - - inflateBack() uses two subroutines supplied by the caller that are then - called by inflateBack() for input and output. inflateBack() calls those - routines until it reads a complete deflate stream and writes out all of the - uncompressed data, or until it encounters an error. The function's - parameters and return types are defined above in the in_func and out_func - typedefs. inflateBack() will call in(in_desc, &buf) which should return the - number of bytes of provided input, and a pointer to that input in buf. If - there is no input available, in() must return zero--buf is ignored in that - case--and inflateBack() will return a buffer error. inflateBack() will call - out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() - should return zero on success, or non-zero on failure. If out() returns - non-zero, inflateBack() will return with an error. Neither in() nor out() - are permitted to change the contents of the window provided to - inflateBackInit(), which is also the buffer that out() uses to write from. - The length written by out() will be at most the window size. Any non-zero - amount of input may be provided by in(). - - For convenience, inflateBack() can be provided input on the first call by - setting strm->next_in and strm->avail_in. If that input is exhausted, then - in() will be called. Therefore strm->next_in must be initialized before - calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called - immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in - must also be initialized, and then if strm->avail_in is not zero, input will - initially be taken from strm->next_in[0 .. strm->avail_in - 1]. - - The in_desc and out_desc parameters of inflateBack() is passed as the - first parameter of in() and out() respectively when they are called. These - descriptors can be optionally used to pass any information that the caller- - supplied in() and out() functions need to do their job. - - On return, inflateBack() will set strm->next_in and strm->avail_in to - pass back any unused input that was provided by the last in() call. The - return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR - if in() or out() returned an error, Z_DATA_ERROR if there was a format error - in the deflate stream (in which case strm->msg is set to indicate the nature - of the error), or Z_STREAM_ERROR if the stream was not properly initialized. - In the case of Z_BUF_ERROR, an input or output error can be distinguished - using strm->next_in which will be Z_NULL only if in() returned an error. If - strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning - non-zero. (in() will always be called before out(), so strm->next_in is - assured to be defined if out() returns non-zero.) Note that inflateBack() - cannot return Z_OK. -*/ - -ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm)); -/* - All memory allocated by inflateBackInit() is freed. - - inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream - state was inconsistent. -*/ - -ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); -/* Return flags indicating compile-time options. - - Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: - 1.0: size of uInt - 3.2: size of uLong - 5.4: size of voidpf (pointer) - 7.6: size of z_off_t - - Compiler, assembler, and debug options: - 8: DEBUG - 9: ASMV or ASMINF -- use ASM code - 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention - 11: 0 (reserved) - - One-time table building (smaller code, but not thread-safe if true): - 12: BUILDFIXED -- build static block decoding tables when needed - 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed - 14,15: 0 (reserved) - - Library content (indicates missing functionality): - 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking - deflate code when not needed) - 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect - and decode gzip streams (to avoid linking crc code) - 18-19: 0 (reserved) - - Operation variations (changes in library functionality): - 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate - 21: FASTEST -- deflate algorithm with only one, lowest compression level - 22,23: 0 (reserved) - - The sprintf variant used by gzprintf (zero is best): - 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format - 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! - 26: 0 = returns value, 1 = void -- 1 means inferred string length returned - - Remainder: - 27-31: 0 (reserved) - */ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the basic - stream-oriented functions. To simplify the interface, some default options - are assumed (compression level and memory usage, standard memory allocation - functions). The source code of these utility functions can be modified if - you need special options. -*/ - -ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least the value returned by - compressBound(sourceLen). Upon exit, destLen is the actual size of the - compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); -/* - compressBound() returns an upper bound on the compressed size after - compress() or compress2() on sourceLen bytes. It would be used before a - compress() or compress2() call to allocate the destination buffer. -*/ - -ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, - const Bytef *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total size - of the destination buffer, which must be large enough to hold the entire - uncompressed data. (The size of the uncompressed data must have been saved - previously by the compressor and transmitted to the decompressor by some - mechanism outside the scope of this compression library.) Upon exit, destLen - is the actual size of the uncompressed buffer. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. -*/ - - - /* gzip file access functions */ - -/* - This library supports reading and writing files in gzip (.gz) format with - an interface similar to that of stdio, using the functions that start with - "gz". The gzip format is different from the zlib format. gzip is a gzip - wrapper, documented in RFC 1952, wrapped around a deflate stream. -*/ - -typedef voidp gzFile; /* opaque gzip file descriptor */ - -/* -ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); - - Opens a gzip (.gz) file for reading or writing. The mode parameter is as - in fopen ("rb" or "wb") but can also include a compression level ("wb9") or - a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only - compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F' - for fixed code compression as in "wb9F". (See the description of - deflateInit2 for more information about the strategy parameter.) Also "a" - can be used instead of "w" to request that the gzip stream that will be - written be appended to the file. "+" will result in an error, since reading - and writing to the same gzip file is not supported. - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened, if there was - insufficient memory to allocate the gzFile state, or if an invalid mode was - specified (an 'r', 'w', or 'a' was not provided, or '+' was provided). - errno can be checked to determine if the reason gzopen failed was that the - file could not be opened. -*/ - -ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); -/* - gzdopen associates a gzFile with the file descriptor fd. File descriptors - are obtained from calls like open, dup, creat, pipe or fileno (if the file - has been previously opened with fopen). The mode parameter is as in gzopen. - - The next call of gzclose on the returned gzFile will also close the file - descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor - fd. If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd, - mode);. The duplicated descriptor should be saved to avoid a leak, since - gzdopen does not close fd if it fails. - - gzdopen returns NULL if there was insufficient memory to allocate the - gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not - provided, or '+' was provided), or if fd is -1. The file descriptor is not - used until the next gz* read, write, seek, or close operation, so gzdopen - will not detect if fd is invalid (unless fd is -1). -*/ - -ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); -/* - Set the internal buffer size used by this library's functions. The - default buffer size is 8192 bytes. This function must be called after - gzopen() or gzdopen(), and before any other calls that read or write the - file. The buffer memory allocation is always deferred to the first read or - write. Two buffers are allocated, either both of the specified size when - writing, or one of the specified size and the other twice that size when - reading. A larger buffer size of, for example, 64K or 128K bytes will - noticeably increase the speed of decompression (reading). - - The new buffer size also affects the maximum length for gzprintf(). - - gzbuffer() returns 0 on success, or -1 on failure, such as being called - too late. -*/ - -ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. If - the input file was not in gzip format, gzread copies the given number of - bytes into the buffer. - - After reaching the end of a gzip stream in the input, gzread will continue - to read, looking for another gzip stream, or failing that, reading the rest - of the input file directly without decompression. The entire input file - will be read if gzread is called until it returns less than the requested - len. - - gzread returns the number of uncompressed bytes actually read, less than - len for end of file, or -1 for error. -*/ - -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - voidpc buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes written or 0 in case of - error. -*/ - -ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the arguments to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written, or 0 in case of error. The number of - uncompressed bytes written is limited to 8191, or one less than the buffer - size given to gzbuffer(). The caller should assure that this limit is not - exceeded. If it is exceeded, then gzprintf() will return an error (0) with - nothing written. In this case, there may also be a buffer overflow with - unpredictable consequences, which is possible only if zlib was compiled with - the insecure functions sprintf() or vsprintf() because the secure snprintf() - or vsnprintf() functions were not available. This can be determined using - zlibCompileFlags(). -*/ - -ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - - gzputs returns the number of characters written, or -1 in case of error. -*/ - -ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or a - newline character is read and transferred to buf, or an end-of-file - condition is encountered. If any characters are read or if len == 1, the - string is terminated with a null character. If no characters are read due - to an end-of-file or len < 1, then the buffer is left untouched. - - gzgets returns buf which is a null-terminated string, or it returns NULL - for end-of-file or in case of error. If there was an error, the contents at - buf are indeterminate. -*/ - -ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. gzputc - returns the value that was written, or -1 in case of error. -*/ - -ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte or -1 - in case of end of file or error. -*/ - -ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); -/* - Push one character back onto the stream to be read as the first character - on the next read. At least one character of push-back is allowed. - gzungetc() returns the character pushed, or -1 on failure. gzungetc() will - fail if c is -1, and may fail if a character has been pushed but not read - yet. If gzungetc is used immediately after gzopen or gzdopen, at least the - output buffer size of pushed characters is allowed. (See gzbuffer above.) - The pushed character will be discarded if the stream is repositioned with - gzseek() or gzrewind(). -*/ - -ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter flush - is as in the deflate() function. The return value is the zlib error number - (see function gzerror below). gzflush is only permitted when writing. - - If the flush parameter is Z_FINISH, the remaining data is written and the - gzip stream is completed in the output. If gzwrite() is called again, a new - gzip stream will be started in the output. gzread() is able to read such - concatented gzip streams. - - gzflush should be called only when strictly necessary because it will - degrade compression if called too often. -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); - - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); - - Returns the starting position for the next gzread or gzwrite on the given - compressed file. This position represents a number of bytes in the - uncompressed data stream, and is zero when starting, even if appending or - reading a gzip stream from the middle of a file using gzdopen(). - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -/* -ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file)); - - Returns the current offset in the file being read or written. This offset - includes the count of bytes that precede the gzip stream, for example when - appending or when using gzdopen() for reading. When reading, the offset - does not include as yet unused buffered input. This information can be used - for a progress indicator. On error, gzoffset() returns -1. -*/ - -ZEXTERN int ZEXPORT gzeof OF((gzFile file)); -/* - Returns true (1) if the end-of-file indicator has been set while reading, - false (0) otherwise. Note that the end-of-file indicator is set only if the - read tried to go past the end of the input, but came up short. Therefore, - just like feof(), gzeof() may return false even if there is no more data to - read, in the event that the last read request was for the exact number of - bytes remaining in the input file. This will happen if the input file size - is an exact multiple of the buffer size. - - If gzeof() returns true, then the read functions will return no more data, - unless the end-of-file indicator is reset by gzclearerr() and the input file - has grown since the previous end of file was detected. -*/ - -ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); -/* - Returns true (1) if file is being copied directly while reading, or false - (0) if file is a gzip stream being decompressed. This state can change from - false to true while reading the input file if the end of a gzip stream is - reached, but is followed by data that is not another gzip stream. - - If the input file is empty, gzdirect() will return true, since the input - does not contain a gzip stream. - - If gzdirect() is used immediately after gzopen() or gzdopen() it will - cause buffers to be allocated to allow reading the file to determine if it - is a gzip file. Therefore if gzbuffer() is used, it should be called before - gzdirect(). -*/ - -ZEXTERN int ZEXPORT gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file and - deallocates the (de)compression state. Note that once file is closed, you - cannot call gzerror with file, since its structures have been deallocated. - gzclose must not be called more than once on the same file, just as free - must not be called more than once on the same allocation. - - gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a - file operation error, or Z_OK on success. -*/ - -ZEXTERN int ZEXPORT gzclose_r OF((gzFile file)); -ZEXTERN int ZEXPORT gzclose_w OF((gzFile file)); -/* - Same as gzclose(), but gzclose_r() is only for use when reading, and - gzclose_w() is only for use when writing or appending. The advantage to - using these instead of gzclose() is that they avoid linking in zlib - compression or decompression code that is not used when only reading or only - writing respectively. If gzclose() is used, then both compression and - decompression code will be included the application when linking to a static - zlib library. -*/ - -ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the given - compressed file. errnum is set to zlib error number. If an error occurred - in the file system and not in the compression library, errnum is set to - Z_ERRNO and the application may consult errno to get the exact error code. - - The application must not modify the returned string. Future calls to - this function may invalidate the previously returned string. If file is - closed, then the string previously returned by gzerror will no longer be - available. - - gzerror() should be used to distinguish errors from end-of-file for those - functions above that do not distinguish those cases in their return values. -*/ - -ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); -/* - Clears the error and end-of-file flags for file. This is analogous to the - clearerr() function in stdio. This is useful for continuing to read a gzip - file that is being written concurrently. -*/ - - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the compression - library. -*/ - -ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is Z_NULL, this function returns the - required initial value for the checksum. - - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. - - Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, - z_off_t len2)); - - Combine two Adler-32 checksums into one. For two sequences of bytes, seq1 - and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for - each, adler1 and adler2. adler32_combine() returns the Adler-32 checksum of - seq1 and seq2 concatenated, requiring only adler1, adler2, and len2. -*/ - -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); -/* - Update a running CRC-32 with the bytes buf[0..len-1] and return the - updated CRC-32. If buf is Z_NULL, this function returns the required - initial value for the for the crc. Pre- and post-conditioning (one's - complement) is performed within this function so it shouldn't be done by the - application. - - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ - -/* -ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); - - Combine two CRC-32 check values into one. For two sequences of bytes, - seq1 and seq2 with lengths len1 and len2, CRC-32 check values were - calculated for each, crc1 and crc2. crc32_combine() returns the CRC-32 - check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and - len2. -*/ - - - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits, - unsigned char FAR *window, - const char *version, - int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) -#define inflateBackInit(strm, windowBits, window) \ - inflateBackInit_((strm), (windowBits), (window), \ - ZLIB_VERSION, sizeof(z_stream)) - -/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or - * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if - * both are true, the application gets the *64 functions, and the regular - * functions are changed to 64 bits) -- in case these are set on systems - * without large file support, _LFS64_LARGEFILE must also be true - */ -#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0 - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int)); - ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); -#endif - -#if !defined(ZLIB_INTERNAL) && _FILE_OFFSET_BITS-0 == 64 && _LFS64_LARGEFILE-0 -# define gzopen gzopen64 -# define gzseek gzseek64 -# define gztell gztell64 -# define gzoffset gzoffset64 -# define adler32_combine adler32_combine64 -# define crc32_combine crc32_combine64 -# ifdef _LARGEFILE64_SOURCE - ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); -# endif -#else - ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *)); - ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int)); - ZEXTERN z_off_t ZEXPORT gztell OF((gzFile)); - ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile)); - ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); -#endif - -/* hack for buggy compilers */ -#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) - struct internal_state {int dummy;}; -#endif - -/* undocumented functions */ -ZEXTERN const char * ZEXPORT zError OF((int)); -ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp)); -ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); -ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int)); - -#ifdef __cplusplus -} -#endif - -#endif /* ZLIB_H */ diff --git a/zlib/zlib.map b/zlib/zlib.map deleted file mode 100755 index f282d36..0000000 --- a/zlib/zlib.map +++ /dev/null @@ -1,68 +0,0 @@ -ZLIB_1.2.0 { - global: - compressBound; - deflateBound; - inflateBack; - inflateBackEnd; - inflateBackInit_; - inflateCopy; - local: - deflate_copyright; - inflate_copyright; - inflate_fast; - inflate_table; - zcalloc; - zcfree; - z_errmsg; - gz_error; - gz_intmax; - _*; -}; - -ZLIB_1.2.0.2 { - gzclearerr; - gzungetc; - zlibCompileFlags; -} ZLIB_1.2.0; - -ZLIB_1.2.0.8 { - deflatePrime; -} ZLIB_1.2.0.2; - -ZLIB_1.2.2 { - adler32_combine; - crc32_combine; - deflateSetHeader; - inflateGetHeader; -} ZLIB_1.2.0.8; - -ZLIB_1.2.2.3 { - deflateTune; - gzdirect; -} ZLIB_1.2.2; - -ZLIB_1.2.2.4 { - inflatePrime; -} ZLIB_1.2.2.3; - -ZLIB_1.2.3.3 { - adler32_combine64; - crc32_combine64; - gzopen64; - gzseek64; - gztell64; - inflateUndermine; -} ZLIB_1.2.2.4; - -ZLIB_1.2.3.4 { - inflateReset2; - inflateMark; -} ZLIB_1.2.3.3; - -ZLIB_1.2.3.5 { - gzbuffer; - gzoffset; - gzoffset64; - gzclose_r; - gzclose_w; -} ZLIB_1.2.3.4; diff --git a/zlib/zlib.pc.in b/zlib/zlib.pc.in deleted file mode 100755 index 7e5acf9..0000000 --- a/zlib/zlib.pc.in +++ /dev/null @@ -1,13 +0,0 @@ -prefix=@prefix@ -exec_prefix=@exec_prefix@ -libdir=@libdir@ -sharedlibdir=@sharedlibdir@ -includedir=@includedir@ - -Name: zlib -Description: zlib compression library -Version: @VERSION@ - -Requires: -Libs: -L${libdir} -L${sharedlibdir} -lz -Cflags: -I${includedir} diff --git a/zlib/zlib125.zip b/zlib/zlib125.zip deleted file mode 100755 index e619c6d..0000000 Binary files a/zlib/zlib125.zip and /dev/null differ diff --git a/zlib/zlib2ansi b/zlib/zlib2ansi deleted file mode 100755 index 15e3e16..0000000 --- a/zlib/zlib2ansi +++ /dev/null @@ -1,152 +0,0 @@ -#!/usr/bin/perl - -# Transform K&R C function definitions into ANSI equivalent. -# -# Author: Paul Marquess -# Version: 1.0 -# Date: 3 October 2006 - -# TODO -# -# Asumes no function pointer parameters. unless they are typedefed. -# Assumes no literal strings that look like function definitions -# Assumes functions start at the beginning of a line - -use strict; -use warnings; - -local $/; -$_ = <>; - -my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments - -my $d1 = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ; -my $decl = qr{ $sp (?: \w+ $sp )+ $d1 }xo ; -my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ; - - -while (s/^ - ( # Start $1 - ( # Start $2 - .*? # Minimal eat content - ( ^ \w [\w\s\*]+ ) # $3 -- function name - \s* # optional whitespace - ) # $2 - Matched up to before parameter list - - \( \s* # Literal "(" + optional whitespace - ( [^\)]+ ) # $4 - one or more anythings except ")" - \s* \) # optional whitespace surrounding a Literal ")" - - ( (?: $dList )+ ) # $5 - - $sp ^ { # literal "{" at start of line - ) # Remember to $1 - //xsom - ) -{ - my $all = $1 ; - my $prefix = $2; - my $param_list = $4 ; - my $params = $5; - - StripComments($params); - StripComments($param_list); - $param_list =~ s/^\s+//; - $param_list =~ s/\s+$//; - - my $i = 0 ; - my %pList = map { $_ => $i++ } - split /\s*,\s*/, $param_list; - my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ; - - my @params = split /\s*;\s*/, $params; - my @outParams = (); - foreach my $p (@params) - { - if ($p =~ /,/) - { - my @bits = split /\s*,\s*/, $p; - my $first = shift @bits; - $first =~ s/^\s*//; - push @outParams, $first; - $first =~ /^(\w+\s*)/; - my $type = $1 ; - push @outParams, map { $type . $_ } @bits; - } - else - { - $p =~ s/^\s+//; - push @outParams, $p; - } - } - - - my %tmp = map { /$pMatch/; $_ => $pList{$1} } - @outParams ; - - @outParams = map { " $_" } - sort { $tmp{$a} <=> $tmp{$b} } - @outParams ; - - print $prefix ; - print "(\n" . join(",\n", @outParams) . ")\n"; - print "{" ; - -} - -# Output any trailing code. -print ; -exit 0; - - -sub StripComments -{ - - no warnings; - - # Strip C & C++ coments - # From the perlfaq - $_[0] =~ - - s{ - /\* ## Start of /* ... */ comment - [^*]*\*+ ## Non-* followed by 1-or-more *'s - ( - [^/*][^*]*\*+ - )* ## 0-or-more things which don't start with / - ## but do end with '*' - / ## End of /* ... */ comment - - | ## OR C++ Comment - // ## Start of C++ comment // - [^\n]* ## followed by 0-or-more non end of line characters - - | ## OR various things which aren't comments: - - ( - " ## Start of " ... " string - ( - \\. ## Escaped char - | ## OR - [^"\\] ## Non "\ - )* - " ## End of " ... " string - - | ## OR - - ' ## Start of ' ... ' string - ( - \\. ## Escaped char - | ## OR - [^'\\] ## Non '\ - )* - ' ## End of ' ... ' string - - | ## OR - - . ## Anything other char - [^/"'\\]* ## Chars which doesn't start a comment, string or escape - ) - }{$2}gxs; - -} diff --git a/zlib/zutil.c b/zlib/zutil.c deleted file mode 100755 index 898ed34..0000000 --- a/zlib/zutil.c +++ /dev/null @@ -1,318 +0,0 @@ -/* zutil.c -- target dependent utility functions for the compression library - * Copyright (C) 1995-2005, 2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include "zutil.h" - -#ifndef NO_DUMMY_DECL -struct internal_state {int dummy;}; /* for buggy compilers */ -#endif - -const char * const z_errmsg[10] = { -"need dictionary", /* Z_NEED_DICT 2 */ -"stream end", /* Z_STREAM_END 1 */ -"", /* Z_OK 0 */ -"file error", /* Z_ERRNO (-1) */ -"stream error", /* Z_STREAM_ERROR (-2) */ -"data error", /* Z_DATA_ERROR (-3) */ -"insufficient memory", /* Z_MEM_ERROR (-4) */ -"buffer error", /* Z_BUF_ERROR (-5) */ -"incompatible version",/* Z_VERSION_ERROR (-6) */ -""}; - - -const char * ZEXPORT zlibVersion() -{ - return ZLIB_VERSION; -} - -uLong ZEXPORT zlibCompileFlags() -{ - uLong flags; - - flags = 0; - switch ((int)(sizeof(uInt))) { - case 2: break; - case 4: flags += 1; break; - case 8: flags += 2; break; - default: flags += 3; - } - switch ((int)(sizeof(uLong))) { - case 2: break; - case 4: flags += 1 << 2; break; - case 8: flags += 2 << 2; break; - default: flags += 3 << 2; - } - switch ((int)(sizeof(voidpf))) { - case 2: break; - case 4: flags += 1 << 4; break; - case 8: flags += 2 << 4; break; - default: flags += 3 << 4; - } - switch ((int)(sizeof(z_off_t))) { - case 2: break; - case 4: flags += 1 << 6; break; - case 8: flags += 2 << 6; break; - default: flags += 3 << 6; - } -#ifdef DEBUG - flags += 1 << 8; -#endif -#if defined(ASMV) || defined(ASMINF) - flags += 1 << 9; -#endif -#ifdef ZLIB_WINAPI - flags += 1 << 10; -#endif -#ifdef BUILDFIXED - flags += 1 << 12; -#endif -#ifdef DYNAMIC_CRC_TABLE - flags += 1 << 13; -#endif -#ifdef NO_GZCOMPRESS - flags += 1L << 16; -#endif -#ifdef NO_GZIP - flags += 1L << 17; -#endif -#ifdef PKZIP_BUG_WORKAROUND - flags += 1L << 20; -#endif -#ifdef FASTEST - flags += 1L << 21; -#endif -#ifdef STDC -# ifdef NO_vsnprintf - flags += 1L << 25; -# ifdef HAS_vsprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_vsnprintf_void - flags += 1L << 26; -# endif -# endif -#else - flags += 1L << 24; -# ifdef NO_snprintf - flags += 1L << 25; -# ifdef HAS_sprintf_void - flags += 1L << 26; -# endif -# else -# ifdef HAS_snprintf_void - flags += 1L << 26; -# endif -# endif -#endif - return flags; -} - -#ifdef DEBUG - -# ifndef verbose -# define verbose 0 -# endif -int ZLIB_INTERNAL z_verbose = verbose; - -void ZLIB_INTERNAL z_error (m) - char *m; -{ - fprintf(stderr, "%s\n", m); - exit(1); -} -#endif - -/* exported to allow conversion of error code to string for compress() and - * uncompress() - */ -const char * ZEXPORT zError(err) - int err; -{ - return ERR_MSG(err); -} - -#if defined(_WIN32_WCE) - /* The Microsoft C Run-Time Library for Windows CE doesn't have - * errno. We define it as a global variable to simplify porting. - * Its value is always 0 and should not be used. - */ - int errno = 0; -#endif - -#ifndef HAVE_MEMCPY - -void ZLIB_INTERNAL zmemcpy(dest, source, len) - Bytef* dest; - const Bytef* source; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = *source++; /* ??? to be unrolled */ - } while (--len != 0); -} - -int ZLIB_INTERNAL zmemcmp(s1, s2, len) - const Bytef* s1; - const Bytef* s2; - uInt len; -{ - uInt j; - - for (j = 0; j < len; j++) { - if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; - } - return 0; -} - -void ZLIB_INTERNAL zmemzero(dest, len) - Bytef* dest; - uInt len; -{ - if (len == 0) return; - do { - *dest++ = 0; /* ??? to be unrolled */ - } while (--len != 0); -} -#endif - - -#ifdef SYS16BIT - -#ifdef __TURBOC__ -/* Turbo C in 16-bit mode */ - -# define MY_ZCALLOC - -/* Turbo C malloc() does not allow dynamic allocation of 64K bytes - * and farmalloc(64K) returns a pointer with an offset of 8, so we - * must fix the pointer. Warning: the pointer must be put back to its - * original form in order to free it, use zcfree(). - */ - -#define MAX_PTR 10 -/* 10*64K = 640K */ - -local int next_ptr = 0; - -typedef struct ptr_table_s { - voidpf org_ptr; - voidpf new_ptr; -} ptr_table; - -local ptr_table table[MAX_PTR]; -/* This table is used to remember the original form of pointers - * to large buffers (64K). Such pointers are normalized with a zero offset. - * Since MSDOS is not a preemptive multitasking OS, this table is not - * protected from concurrent access. This hack doesn't work anyway on - * a protected system like OS/2. Use Microsoft C instead. - */ - -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size) -{ - voidpf buf = opaque; /* just to make some compilers happy */ - ulg bsize = (ulg)items*size; - - /* If we allocate less than 65520 bytes, we assume that farmalloc - * will return a usable pointer which doesn't have to be normalized. - */ - if (bsize < 65520L) { - buf = farmalloc(bsize); - if (*(ush*)&buf != 0) return buf; - } else { - buf = farmalloc(bsize + 16L); - } - if (buf == NULL || next_ptr >= MAX_PTR) return NULL; - table[next_ptr].org_ptr = buf; - - /* Normalize the pointer to seg:0 */ - *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; - *(ush*)&buf = 0; - table[next_ptr++].new_ptr = buf; - return buf; -} - -void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) -{ - int n; - if (*(ush*)&ptr != 0) { /* object < 64K */ - farfree(ptr); - return; - } - /* Find the original pointer */ - for (n = 0; n < next_ptr; n++) { - if (ptr != table[n].new_ptr) continue; - - farfree(table[n].org_ptr); - while (++n < next_ptr) { - table[n-1] = table[n]; - } - next_ptr--; - return; - } - ptr = opaque; /* just to make some compilers happy */ - Assert(0, "zcfree: ptr not found"); -} - -#endif /* __TURBOC__ */ - - -#ifdef M_I86 -/* Microsoft C in 16-bit mode */ - -# define MY_ZCALLOC - -#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) -# define _halloc halloc -# define _hfree hfree -#endif - -voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - return _halloc((long)items, size); -} - -void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr) -{ - if (opaque) opaque = 0; /* to make compiler happy */ - _hfree(ptr); -} - -#endif /* M_I86 */ - -#endif /* SYS16BIT */ - - -#ifndef MY_ZCALLOC /* Any system without a special alloc function */ - -#ifndef STDC -extern voidp malloc OF((uInt size)); -extern voidp calloc OF((uInt items, uInt size)); -extern void free OF((voidpf ptr)); -#endif - -voidpf ZLIB_INTERNAL zcalloc (opaque, items, size) - voidpf opaque; - unsigned items; - unsigned size; -{ - if (opaque) items += size - size; /* make compiler happy */ - return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : - (voidpf)calloc(items, size); -} - -void ZLIB_INTERNAL zcfree (opaque, ptr) - voidpf opaque; - voidpf ptr; -{ - free(ptr); - if (opaque) return; /* make compiler happy */ -} - -#endif /* MY_ZCALLOC */ diff --git a/zlib/zutil.h b/zlib/zutil.h deleted file mode 100755 index 9a682bb..0000000 --- a/zlib/zutil.h +++ /dev/null @@ -1,274 +0,0 @@ -/* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2010 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* @(#) $Id$ */ - -#ifndef ZUTIL_H -#define ZUTIL_H - -#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ) && !defined(__WIN32__) -# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) -#else -# define ZLIB_INTERNAL -#endif - -#include "zlib.h" - -#ifdef STDC -# if !(defined(_WIN32_WCE) && defined(_MSC_VER)) -# include -# endif -# include -# include -#endif - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -typedef unsigned char uch; -typedef uch FAR uchf; -typedef unsigned short ush; -typedef ush FAR ushf; -typedef unsigned long ulg; - -extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ -/* (size given to avoid silly warnings with Visual C++) */ - -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] - -#define ERR_RETURN(strm,err) \ - return (strm->msg = (char*)ERR_MSG(err), (err)) -/* To be used only when the state is known to be valid */ - - /* common constants */ - -#ifndef DEF_WBITS -# define DEF_WBITS MAX_WBITS -#endif -/* default windowBits for decompression. MAX_WBITS is for compression only */ - -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif -/* default memLevel */ - -#define STORED_BLOCK 0 -#define STATIC_TREES 1 -#define DYN_TREES 2 -/* The three kinds of block type */ - -#define MIN_MATCH 3 -#define MAX_MATCH 258 -/* The minimum and maximum match lengths */ - -#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ - - /* target dependencies */ - -#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) -# define OS_CODE 0x00 -# if defined(__TURBOC__) || defined(__BORLANDC__) -# if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) - /* Allow compilation with ANSI keywords only enabled */ - void _Cdecl farfree( void *block ); - void *_Cdecl farmalloc( unsigned long nbytes ); -# else -# include -# endif -# else /* MSC or DJGPP */ -# include -# endif -#endif - -#ifdef AMIGA -# define OS_CODE 0x01 -#endif - -#if defined(VAXC) || defined(VMS) -# define OS_CODE 0x02 -# define F_OPEN(name, mode) \ - fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") -#endif - -#if defined(ATARI) || defined(atarist) -# define OS_CODE 0x05 -#endif - -#ifdef OS2 -# define OS_CODE 0x06 -# ifdef M_I86 -# include -# endif -#endif - -#if defined(MACOS) || defined(TARGET_OS_MAC) -# define OS_CODE 0x07 -# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include /* for fdopen */ -# else -# ifndef fdopen -# define fdopen(fd,mode) NULL /* No fdopen() */ -# endif -# endif -#endif - -#ifdef TOPS20 -# define OS_CODE 0x0a -#endif - -#ifdef WIN32 -# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ -# define OS_CODE 0x0b -# endif -#endif - -#ifdef __50SERIES /* Prime/PRIMOS */ -# define OS_CODE 0x0f -#endif - -#if defined(_BEOS_) || defined(RISCOS) -# define fdopen(fd,mode) NULL /* No fdopen() */ -#endif - -#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX -# if defined(_WIN32_WCE) -# define fdopen(fd,mode) NULL /* No fdopen() */ -# ifndef _PTRDIFF_T_DEFINED - typedef int ptrdiff_t; -# define _PTRDIFF_T_DEFINED -# endif -# else -# define fdopen(fd,type) _fdopen(fd,type) -# endif -#endif - -#if defined(__BORLANDC__) - #pragma warn -8004 - #pragma warn -8008 - #pragma warn -8066 -#endif - -/* provide prototypes for these when building zlib without LFS */ -#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0 - ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); -#endif - - /* common defaults */ - -#ifndef OS_CODE -# define OS_CODE 0x03 /* assume Unix */ -#endif - -#ifndef F_OPEN -# define F_OPEN(name, mode) fopen((name), (mode)) -#endif - - /* functions */ - -#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif -#if defined(__CYGWIN__) -# ifndef HAVE_VSNPRINTF -# define HAVE_VSNPRINTF -# endif -#endif -#ifndef HAVE_VSNPRINTF -# ifdef MSDOS - /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), - but for now we just assume it doesn't. */ -# define NO_vsnprintf -# endif -# ifdef __TURBOC__ -# define NO_vsnprintf -# endif -# ifdef WIN32 - /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ -# if !defined(vsnprintf) && !defined(NO_vsnprintf) -# if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 ) -# define vsnprintf _vsnprintf -# endif -# endif -# endif -# ifdef __SASC -# define NO_vsnprintf -# endif -#endif -#ifdef VMS -# define NO_vsnprintf -#endif - -#if defined(pyr) -# define NO_MEMCPY -#endif -#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) - /* Use our own functions for small and medium model with MSC <= 5.0. - * You may have to use the same strategy for Borland C (untested). - * The __SC__ check is for Symantec. - */ -# define NO_MEMCPY -#endif -#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) -# define HAVE_MEMCPY -#endif -#ifdef HAVE_MEMCPY -# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ -# define zmemcpy _fmemcpy -# define zmemcmp _fmemcmp -# define zmemzero(dest, len) _fmemset(dest, 0, len) -# else -# define zmemcpy memcpy -# define zmemcmp memcmp -# define zmemzero(dest, len) memset(dest, 0, len) -# endif -#else - void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); - int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); - void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len)); -#endif - -/* Diagnostic functions */ -#ifdef DEBUG -# include - extern int ZLIB_INTERNAL z_verbose; - extern void ZLIB_INTERNAL z_error OF((char *m)); -# define Assert(cond,msg) {if(!(cond)) z_error(msg);} -# define Trace(x) {if (z_verbose>=0) fprintf x ;} -# define Tracev(x) {if (z_verbose>0) fprintf x ;} -# define Tracevv(x) {if (z_verbose>1) fprintf x ;} -# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} -# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - - -voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items, - unsigned size)); -void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr)); - -#define ZALLOC(strm, items, size) \ - (*((strm)->zalloc))((strm)->opaque, (items), (size)) -#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) -#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} - -#endif /* ZUTIL_H */ -- cgit v1.2.3